WO1998004769A1 - Threading device in sewing machine for embroidery - Google Patents

Threading device in sewing machine for embroidery Download PDF

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Publication number
WO1998004769A1
WO1998004769A1 PCT/JP1997/002602 JP9702602W WO9804769A1 WO 1998004769 A1 WO1998004769 A1 WO 1998004769A1 JP 9702602 W JP9702602 W JP 9702602W WO 9804769 A1 WO9804769 A1 WO 9804769A1
Authority
WO
WIPO (PCT)
Prior art keywords
thread
threading
yarn
sewing machine
needle
Prior art date
Application number
PCT/JP1997/002602
Other languages
French (fr)
Japanese (ja)
Inventor
Toshio Miyamoto
Original Assignee
Miyamoto Giken Yugen Kaisha
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Miyamoto Giken Yugen Kaisha filed Critical Miyamoto Giken Yugen Kaisha
Priority to EP97933039A priority Critical patent/EP0921225A4/en
Priority to JP50869198A priority patent/JP3162082B2/en
Publication of WO1998004769A1 publication Critical patent/WO1998004769A1/en

Links

Classifications

    • DTEXTILES; PAPER
    • D05SEWING; EMBROIDERING; TUFTING
    • D05CEMBROIDERING; TUFTING
    • D05C11/00Devices for guiding, feeding, handling, or treating the threads in embroidering machines; Machine needles; Operating or control mechanisms therefor
    • D05C11/16Arrangements for repeating thread patterns or for changing threads
    • DTEXTILES; PAPER
    • D05SEWING; EMBROIDERING; TUFTING
    • D05BSEWING
    • D05B87/00Needle- or looper- threading devices
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H49/00Unwinding or paying-out filamentary material; Supporting, storing or transporting packages from which filamentary material is to be withdrawn or paid-out
    • B65H49/02Methods or apparatus in which packages do not rotate
    • B65H49/04Package-supporting devices
    • B65H49/14Package-supporting devices for several operative packages
    • B65H49/16Stands or frameworks
    • DTEXTILES; PAPER
    • D05SEWING; EMBROIDERING; TUFTING
    • D05BSEWING
    • D05B43/00Spool-pin assemblies incorporated in sewing machines
    • DTEXTILES; PAPER
    • D05SEWING; EMBROIDERING; TUFTING
    • D05BSEWING
    • D05B47/00Needle-thread tensioning devices; Applications of tensometers
    • DTEXTILES; PAPER
    • D05SEWING; EMBROIDERING; TUFTING
    • D05BSEWING
    • D05B87/00Needle- or looper- threading devices
    • D05B87/02Needle- or looper- threading devices with mechanical means for moving thread through needle or looper eye
    • DTEXTILES; PAPER
    • D05SEWING; EMBROIDERING; TUFTING
    • D05CEMBROIDERING; TUFTING
    • D05C11/00Devices for guiding, feeding, handling, or treating the threads in embroidering machines; Machine needles; Operating or control mechanisms therefor
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00Handled material; Storage means
    • B65H2701/30Handled filamentary material
    • B65H2701/31Textiles threads or artificial strands of filaments
    • DTEXTILES; PAPER
    • D05SEWING; EMBROIDERING; TUFTING
    • D05BSEWING
    • D05B65/00Devices for severing the needle or lower thread

Definitions

  • the present invention relates to a stitching machine for stabbing S8, and in particular, performs manual processing when exchanging a colored thread (in this specification, simply referred to as “thread” or “upper thread”) or when the thread is broken.
  • the present invention relates to a stimulating sewing machine that can be automatically performed without using a sewing machine. Height technology
  • the present invention solves the above-described problems of the conventional embroidery sewing machine, and can automatically perform processing such as replacement of a color thread or breakage of a thread without human intervention.
  • the time required for the sewing machine can be shortened, and the operating efficiency and productivity of the The purpose is to provide.
  • a threading device in an embroidery sewing machine includes a thread clamping member for clamping an end of a thread suspended from a thread delivery pipe, and a thread clamped by the thread clamping member. It is characterized by comprising a thread tensioning mechanism that guides the stretched thread to a balance mechanism, and a threading mechanism that guides the thread to the needle hole, while guiding the thread to the position near the needle.
  • ADVANTAGE OF THE INVENTION According to the threading apparatus in the embroidery sewing machine of the present invention, it is possible to automatically perform processing such as when changing the color thread or when the thread breaks without human intervention, and the time itself required for the processing. And the operating rate and productivity of the machine can be improved.
  • the accuracy of threading can be improved.
  • the threading mechanism by configuring the threading mechanism with the thread pulling-out mechanism and the air nozzle, the accuracy of threading can be further improved, and the threading mechanism can be simplified.
  • FIG. 1 is a front view showing a first embodiment of a thread supply device in a sewing machine according to the present invention
  • FIG. 2 is a side view thereof
  • FIG. 3 is a plan view thereof
  • FIG. FIG. 3 is a sectional view taken along line A-A of FIG.
  • FIG. 5 is a perspective view showing a thread holding body of a thread supply device in a thread feeding machine according to a second embodiment of the present invention.
  • FIG. 6 shows a thread tension releasing mechanism. Is a side view, (b) is a front view, FIG. 7 shows a thread length adjusting mechanism, (a) is a side view, (b) is a plan view, and FIG. 8 shows a thread sending mechanism.
  • A) is a side view, (b) is a front view, and (c) is a perspective view.
  • FIG. 9 is a front view showing a modified example of the first embodiment of the thread supply device in the stimulating fiber sewing machine of the present invention
  • FIG. 0 is a side view thereof
  • FIG. 11 is a plan view of a main part thereof.
  • FIG. 12 is a perspective view of the main part.
  • FIG. 13 is a side sectional view showing a thread holder according to a modification of the first embodiment of the thread supply device in the stimulating fiber sewing machine of the present invention.
  • FIG. 14 shows a first embodiment of a threading device for an embroidery sewing machine according to the present invention, wherein (a) is a side view and (b) is a front view.
  • FIG. 15 is a front view of a thread tensioning mechanism of the threading device for an embroidery sewing machine according to the present invention
  • FIG. 16 is a side view of the thread tensioning mechanism
  • FIG. (A) is a plan view
  • (b) is a side view
  • (c) is a front view
  • FIG. 18 shows a threading mechanism
  • (a) is a side view
  • Fig. 19 (b) is a front view
  • Fig. 19 (c) is a plan view
  • Fig. 19 is an explanatory view showing the operation state of the thread pressing mechanism of the threading mechanism
  • Fig. 20 is a main part of the threading machine.
  • 21 is a perspective view of FIG. 21, FIG.
  • FIG. 21 shows a thread pull-out mechanism
  • (a) is a plan view
  • (b) is a side view
  • (c) is an exploded perspective view
  • FIG. 22 shows a thread cutting mechanism.
  • (A) is a plan view
  • (b) is a front sectional view
  • FIG. 23 shows a cut yarn collecting mechanism
  • (a) is a front view
  • (b) is a plan view
  • FIG. (A) is a plan view and (b) is a perspective view. It is.
  • FIG. 25 is a front view showing a second embodiment of the stimulating sewing machine according to the present invention.
  • FIG. 26 shows a thread holder of a second embodiment of the thread supply device in the embroidery sewing machine of the present invention, wherein (a) is a front view, (b) is a side view, and (c) is a plan view.
  • FIG. 27 is a side view of the thread supply device in the staple fiber sewing machine of the present invention.
  • FIG. 28 shows a modified example of the second embodiment of the thread supply device in the sewing machine according to the present invention, in which (a) is a front view, (b) is a side view, and FIG. 29 is a perspective view thereof.
  • FIG. 30 is a front view of the yarn adjusting mechanism
  • FIG. 31 is a cross-sectional view of a main part of the pipe member
  • FIG. 32 is a cross-sectional view of a main part of the yarn adjusting mechanism.
  • FIG. 33 is a front view of a second embodiment of the threading device for a sewing machine according to the present invention
  • FIG. 34 is a side view thereof.
  • FIG. 35 shows a modified example of the thread clamping member of the thread tensioning mechanism, wherein (a) is a front view, (b) is a plan view, (c) is a side view, and FIG. FIG. 37 is a perspective view of a thread pull-out mechanism, FIG. 38 is a perspective view of a modified example of the thread pull-out mechanism, FIG. 39 is a perspective view of a thread recovery mechanism, and FIG. ) Is a plan view, (b) is a front view, and FIG. 40 is a perspective view thereof.
  • the embroidery sewing machine is composed of a plurality of sewing machine heads 1, a thread supply device 2, a thread tensioning mechanism 3, and a threading mechanism 6, a threading device 7, and a balance mechanism. 4.
  • the main part is composed of auxiliary mechanisms 5 such as a cut thread recovery mechanism.
  • the drawing of this embodiment exemplarily shows one of the sewing machine heads provided with about 30 to about 30 heads in one sewing machine.
  • the same configuration as that of the embodiment is applied to other sewing heads other than those shown in the figure, and each sewing head can be synchronously driven by various common driving sources. If necessary, a clutch is interposed between the common drive source and each sewing machine head, or an independent drive source is provided for each sewing machine Heads can be driven independently, but these mechanisms are There is no fundamental difference from the sewing machine.
  • a thread supply device provided in the sewing machine head of the embroidery sewing machine of the present embodiment.
  • auxiliary mechanism 5 such as a cut thread collecting mechanism and the threading device 7 have all of them, but in some cases, some of the devices are replaced with other mechanisms having the same effect. And can also be omitted.
  • air cylinders, solenoids, and the like used as drive sources for various drive mechanisms may be replaced with other appropriate drive sources as needed, although not described each time.
  • connection mechanism such as a link mechanism, a lever mechanism, and a wire mechanism.
  • this connection mechanism is not described each time, but is necessary. Can be replaced with another appropriate connection mechanism other than the embodiment.
  • any high-pressure air generator other than the compressor may be used. it can.
  • FIGS. 1 to 8 show a first embodiment of the thread supply device 2 installed in the upper part of a sewing head of a sewn-up sewing machine.
  • This yarn supply device 2 has a bobbin storage section 2 2 that can store a plurality of colored yarn posbins 2 ⁇ , and the number of bobbins 2 1 that can be stored integrated with the bobbin storage section 22.
  • a thread adjusting mechanism 24 having a main body 24 a and a thread sending mechanism 28 corresponding to a required bobbin 21 are selectively disposed above a threading device 7 for threading a predetermined needle 10.
  • a thread selection mechanism 29 to be positioned.
  • the bobbin housing section 22 and the thread adjusting mechanism 24 provided integrally with the bobbin housing section 22 are formed as a unit, and this is detachably attached to the sewing head 1.
  • the pobin storage section 22 is, for example, configured to store a total of 18 pobins 2 1, that is, 12 pieces inclining slightly forward in the upper row and 6 pieces in the lower row horizontally. 2 2, a bobbin 21 is inserted into the bottom surface thereof, and a spindle 22 a for supporting the bobbin 21 is erected, and a thread holder 2 for pulling out the thread 11 of each pobin 21 on the upper portion so as not to be tangled. 3 is provided, and a total of 18 yarns 1 1 are pulled out from the yarn holder 2 3 at an interval, and the yarn tension adjustment mechanism 2 4 of the thread adjustment mechanism 2 4 attached integrally to the lower part of the pobin storage 2 2 Send it in.
  • the thread holding member 23 has a threading hole 23 b for pulling out the thread 11 so that the thread 11 is not entangled in the threading piece support shaft 23 c provided between the pobins 21.
  • 23 a is movably arranged above the bobbin 21, and a notch 23 d formed at the base of the moving piece 23 a is formed by a protrusion 2 protruding from the moving piece support shaft 23 c.
  • the moving piece 23a is fixed at a predetermined position by fitting to 3e.
  • the bobbin 21 can be easily attached to and detached from the bobbin storage section 22.
  • An axial screen 23 f is formed at the upper end of the moving piece support shaft 23 c, and the upper end of the groove 23 f is slightly widened to form the base of the moving piece 23 a. To prevent it from coming out of the moving piece support shaft 23c.
  • the thread tension adjusting mechanism 25 includes three thread tension adjusting members for each thread from each pobin 21 provided on the outer circumferential surface of the semicircular main body 24 a of the thread adjusting mechanism 24. 25 a, 25 b, and 25 c.
  • one of the thread tension adjusting members 25 c has a tension for measuring the tension of thread 11.
  • a force sensor 25 d is provided so that the thread breakage of thread # 1 can be detected.
  • the signal from the tension sensor 25 d is converted into an electric signal from an electric contact (not shown) provided on the thread adjusting mechanism 24 to an electric circuit (shown in the drawing) provided with an electric contact provided on the sewing machine head 1.
  • a display lamp (not shown) that controls the drive of the embroidery sewing machine and displays the state of the upper and lower threads arranged on the sewing machine head 1 and the like. Is turned on to inform the re-worker of thread breakage.
  • a display device such as a liquid crystal display panel for displaying the state of the embroidery sewing machine to an operator and an alarm device such as a buzzer can be provided at an appropriate position of the embroidery sewing machine.
  • the thread tension for releasing the holding of the thread 11 by the thread tension adjusting member 25 b is used. Release mechanism 26 is provided.
  • the thread tension release mechanism 26 is operated by a thread tension release plate 26 b which is operated by a solenoid 26 a provided on the sewing machine head 1 side.
  • the spring of the thread tension adjusting member 25b is compressed by way of c to release the holding of the thread 1 ⁇ ⁇ ⁇ by the thread tension adjusting member 25b.
  • a thread length adjusting mechanism 27 provided below the thread tension adjusting mechanism 25 is for holding a predetermined length of the thread 11 to be sent out toward the needle 10.
  • the thread 11 held by 7 is sent out by releasing the thread length adjusting mechanism 27 when the tip of the thread 11 is guided to the vicinity of the needle 10 by the threading device 7,
  • a thread 17 of a predetermined length required for starting the piercing operation is passed through the needle 10.
  • the thread length adjusting mechanism 27 is a thread length that is slid by a solenoid (not shown) via a wire 27a and a lever 27b.
  • the length adjusting piece 27c is projected to hold the yarn 11 by a predetermined length, and the held yarn ⁇ 1 is fed out by retracting the yarn length adjusting piece 27c.
  • the tip of the thread length adjusting piece 27c is formed in a concave shape so as to easily hold the thread # 1.
  • the thread sending mechanism 28 provided on the outer peripheral surface of the semicircular main body 24 a of the thread adjusting mechanism 24 below the thread length adjusting mechanism 27 moves the thread 11 toward the needle 10. As shown in Fig. 8, it is connected to a thread delivery pipe 28a that guides the thread 11 above the threading device 7 and a high-pressure air source (not shown). And an air nozzle 28 b for sending out the yarn 11 toward the threading device 7.
  • the air nozzle 28 b is located at the threading position, that is, the opening end of the air nozzle 28 b is located near the upper opening of the thread delivery pipe 28 a located above the threading device 7. So that the thread 11 hanging down from the thread delivery pipe 28 a located above the threading device 7 can be pinched accurately by the threading device 7.
  • the biasing force of the torsion spring 28c causes the thread delivery pipe 28a to tilt around the drive shaft 28d, and the threader
  • the thread delivery pipe 28a located above the device 7 is brought into contact with the posture holding piece 28e fixed to the sewing machine head 1 or by operating the drive mechanism (not shown).
  • the torsion spring 28 is set up against the urging force of c.
  • the thread selection mechanism 29 is selectively positioned above the threading device 7 for threading the thread delivery pipe 28 a of the thread delivery mechanism 28 corresponding to the required pobin 2 ⁇ to a predetermined needle 10.
  • a spindle 29 a disposed on the sewing machine head 1 for movably mounting the thread adjusting mechanism 24 via its bottom plate 24 b, and a drive source (see FIG. (Not shown)
  • a moving body 29 b that is driven and driven by a spindle 29 a as a driving axis by a link 29 c connected to, and a through hole formed in a bottom plate 24 b of the thread adjusting mechanism 24.
  • the pin 29 d is fitted with the pin 24 c and projects from the pin 29 d for driving the thread adjusting mechanism 24 together with the pin 29 b.
  • a positioning roller 29 h is disposed at the tip of a moving body 29 g that is driven by using a supporting shaft 29 f as a driving shaft by a link 29 e connected to the positioning roller 2 e.
  • 9 h is fitted to a gear 24 d engraved around the circumference of the bottom plate 24 b of the thread adjusting mechanism 24 so as to match the angle of the thread delivery tube 28 a of the thread delivery mechanism 28.
  • the thread selection mechanism 29 is controlled by the control unit of the stimulating sewing machine, and the control unit previously stores the type (color) of each of the pobins 21 stored in the pobin storage unit 22. In this way, a large number of color yarns can be automatically selected.
  • a thread insertion hole is formed to hold the thread 11 from each bobbin 21 so as not to be entangled. It is desirable to provide the yarn holders 20a, 20b, 20c, 20d, and 2Oe formed at equal intervals.
  • the thread tension adjusting mechanism 25 and the thread sending mechanism 28 constituting the thread adjusting mechanism 24 correspond to the number of the pobins 21 that can be stored in the bobbin storing section 22 respectively, that is, in the present embodiment.
  • 18 sets are provided on the outer peripheral surface of the semi-cylindrical body 24 a of the thread adjusting mechanism 24, but the thread tension releasing mechanism 26, the thread length adjusting mechanism 27, and the thread sending mechanism
  • One air nozzle 28 b and posture holding piece 28 e are provided on the machine head 1 side.
  • One of these mechanisms at a predetermined position shall be operated or cooperated with the one at a predetermined position, that is, shared by 18 sets of these mechanisms.
  • the bobbin housing section 22 and the thread adjusting mechanism 24 integrally provided with the bobbin housing section 22 preferably have a plurality of sewing head 1 heads. Prepare twice as many. Thereby, when exchanging the color thread, it is possible to shorten the time required for exchanging the color thread by exchanging the whole unit. For example, if the unit of this embodiment is prepared twice as many as the number of heads of the sewing machine, it is possible to exchange color threads of up to 36 colors in a short time. In this case, the type (color) of each of the pobbins 21 stored in the bobbin storing section 22 is stored in advance in the control section of the embroidery sewing machine. Can be automatically changed.
  • the pobin storage section 22 and the thread adjusting mechanism 24 provided integrally therewith are formed as a unit, and this is detachably attached to the sewing machine head 1. However, these can be fixedly attached to the sewing machine head 1 as well.
  • the thread delivery tube 28 a of the thread delivery mechanism 28 corresponding to the required bobbin 21 is selectively positioned above the threading device 7 for threading a predetermined needle 10.
  • the yarn adjusting mechanism 24 is driven by the yarn adjusting mechanism 24 with the support shaft 29 a as the driving axis, but a mechanism that slides in a horizontal plane is adopted as the yarn selecting mechanism. You can also.
  • FIGS. 9 to 13 show modified examples of the first embodiment of the thread supply device 2 disposed above the sewing head 1 of the staple fiber sewing machine.
  • This thread supply device 2 has a number of pobins 2 1 that can be stored, and a pobin storage section 2 2 that can store a plurality of color thread pobins 2 1, and a bobbin storage section 22 that is integrated. Sent out toward the needle 10 and the thread tension adjustment mechanism 25 A thread adjusting mechanism 24 having a semi-cylindrical main body 24 a having a thread length adjusting mechanism (not shown; see the first embodiment described above) for holding the thread 11 by a predetermined length; A thread selecting mechanism 29 for selectively positioning a thread sending mechanism 28 corresponding to a required bobbin 21 above a threading device 7 for threading a predetermined needle 10.
  • the bobbin housing 22 and the upper half of the yarn adjusting mechanism 24 provided integrally therewith that is, the yarn tension adjusting mechanism provided corresponding to the number of bobbins 21 that can be stored.
  • the 25 is divided into two and divided into two units to form a unit (hereinafter referred to as “units 2A and 2B”). It is configured to be detachably attached to the thread selection mechanism 29 provided on the SB 1 via the bottom plate 24 b of the thread adjustment mechanism 24.
  • the pobin storage section 22 is, for example, inclined slightly upward in the upper row so as to store a total of 18 bobbins 2 ⁇ , 9 pieces on the left and right sides.
  • a spindle 22a for inserting and supporting the bobbin 2 ⁇ is erected, and a bobbin guide 22b suitable for the bobbin 21 to be used is arranged around the spindle 22a, and the thread 11 of each bobbin 21 is not entangled on the bottom surface.
  • a thread holder 23 is provided on the spindle 22a, and a total of 18 threads 11 are pulled out from the thread holder 23 at intervals, and the thread of the thread adjustment mechanism 2 is integrally attached to the lower part of the pobin storage section 22. Feed it into the tension adjustment mechanism 25.
  • the thread holder 23 includes a guide plate 23p disposed at the upper end of the spindle 22a, a ceramic guide tube 23q disposed at the upper end opening of the spindle 22a, and a hollow conduit of the spindle 22a. 23 r and a pipe member 23 s communicating with the hollow conduit 23, and spin the yarn 11 of each bobbin 21. The yarn is sent to the thread tension adjusting mechanism 25 via the hollow conduit 23r and the pipe member 23s of the dollar 22a.
  • the operation of inserting the yarn 11 into the hollow conduit 23r and the pipe member 23s of the spindle 22a can be easily performed by blowing high-pressure airflow together with the yarn 1 from the upper end opening of the guide tube 23q. It can be carried out.
  • the thread tension adjusting mechanism 25 includes three thread tension adjusting members 25 a, 25 for each thread 11 from each bobbin 2 ⁇ ⁇ provided on the outer peripheral surface of the semi-cylindrical body 24 a of the thread adjusting mechanism 24. b, 25c.
  • One of the yarn tension adjusting members 25c is provided with a tension sensor 25d for measuring the tension of the yarn # 1, so that the yarn 11 can be detected as being broken.
  • the signal from the tension sensor 25d is converted into an electric signal from an electric contact provided on the thread adjusting mechanism 24 (not shown) to an electric circuit provided with an electric contact provided on the sewing machine head 1 (not shown). ) To the controller of the embroidery sewing machine to control the drive of the embroidery sewing machine and to display the status of the upper and lower threads arranged on the sewing machine head 1 etc. (not shown) ) Turn on to inform the worker of thread 11 breakage.
  • a display device such as a liquid crystal display panel for displaying the status of the embroidery sewing machine to the operator and an alarm device such as a buzzer can be provided at an appropriate position of the sewing machine.
  • a mechanism (not shown; see the first embodiment) is provided.
  • a thread sending mechanism 28 provided on the outer peripheral surface of the semi-cylindrical bottom plate 24 b of the thread adjusting mechanism 24 is for smoothly sending out the thread 11 toward the needle 10.
  • An air nozzle shown in the drawing that is connected to a thread delivery pipe 28a that guides the threader 7 above and a high-pressure air source (not shown) to send the yarn 11 toward the threader 7 by a high-pressure air flow (Refer to the first embodiment described above.)
  • the air nozzle is located at the threading position, that is, at the opening end of the air nozzle near the upper opening of the thread delivery pipe 28a located above the threading device 7, as in the first embodiment.
  • the thread delivery tube 28 can be tilted except for the thread delivery tube 28a located above the threading device 7 and at the position where embroidery is performed.
  • At least the thread delivery tube 28a at the position where the stimulus is made is made to stand by operating by an appropriate driving mechanism (not shown), and is tilted immediately after the embroidery is completed, so that the adjacent thread is provided. It is desirable that the threading device 7 can pinch the thread 11 hanging from the thread delivery pipe 28 a located above the threading device 7 accurately.
  • the thread selection mechanism 29 is selectively positioned above the threading device 7 for threading the thread delivery pipe 28 a of the thread delivery mechanism 28 corresponding to the required bobbin 21 to a predetermined needle 10.
  • a spindle 29 a disposed on the sewing machine head 1 for movably mounting the thread adjusting mechanism 24 via its bottom plate 24 b, and a drive source (not shown) )
  • the driving body 29 b driven by the support shaft 29 a as a driving axis by a link 29 c connected to the shaft 29, and a through hole 24 formed in the bottom plate 24 b of the thread adjusting mechanism 24. and a pin 29 d protruding from an oscillating body 29 b for manually driving the thread adjusting mechanism 24 together with the oscillating body 29 b.
  • a positioning roller 29 h is disposed at the tip of a driving body 29 g which is driven by a link 29 e connected to a driving source (not shown) with the supporting shaft 29 f as a driving shaft.
  • the positioning roller 29 h is fitted to a gear 24 d engraved on the periphery of the bottom plate 24 b of the thread adjusting mechanism 24 to match the angle of the thread delivery pipe 28 a of the thread delivery mechanism 28.
  • the thread selection mechanism 29 is controlled by the control unit of the sewing machine for sewing, and the control unit previously stores the type (color) of each pobin 21 stored in the bobbin storage unit 22. In this way, a large number of color yarns can be automatically selected.
  • a threading hole is provided to hold the thread 11 from each pobin 21 so as not to be entangled. It is desirable to provide the yarn holders 20a, 20b, 20c, 20d formed at substantially equal intervals.
  • the thread tension adjusting mechanism 25 and the thread sending mechanism 28 constituting the thread adjusting mechanism 24 correspond to the number of the bobbins 21 that can be stored in the bobbin storing section 22, respectively.
  • 18 sets are provided on the outer peripheral surfaces of the semi-cylindrical body 24a and the bottom plate 24b of the yarn adjusting mechanism 24, respectively.
  • the yarn tension releasing mechanism, the yarn length adjusting mechanism and the yarn One of the air nozzles 28 b and the like of the delivery mechanism 28 is disposed on the sewing machine 1 side, and one of the eighteen mechanisms at a predetermined position is operated or moved to a predetermined position. It should be shared with some, that is, shared by 18 sets of these mechanisms.
  • Units 2A and 2B which are formed by equally dividing the bobbin storage section 22 and the thread adjusting mechanism 24 provided integrally with the bobbin storage section into right and left sides, preferably have the number of heads of the sewing machine 1. Prepare multiple multiples of. As a result, when replacing the color thread, it is necessary to replace the unit 2A or unit 2B and replace the color thread. Time can be reduced. For example, if the units 2A and 2B of the present embodiment are prepared twice as many as the number of heads of the sewing machine, it is possible to exchange color threads of up to 36 colors in a short time. In this case, the type (color) of each of the pobins 21 stored in the pobin storing section 22 is stored in advance in the control section of the embroidery sewing machine. The thread can be changed automatically.
  • the bobbin housing section 22 and the thread adjusting mechanism 24 provided integrally with the bobbin housing section 22 are formed as a unit, and this is detachably attached to the sewing machine head 1. However, these can be fixedly attached to the sewing machine head 1 as well.
  • the thread delivery tube 28 a of the thread delivery mechanism 28 corresponding to the required bobbin 21 is selectively positioned above the threading device 7 for threading a predetermined needle 10.
  • the yarn selecting mechanism 29 is used to drive the yarn adjusting mechanism 24 with the support shaft 29 a as a driving axis, but as the yarn selecting mechanism, a mechanism that slides in a horizontal plane is used. Can also be adopted.
  • a threading device 7 including a thread tensioning mechanism 3 and a threading mechanism 6 is provided below the thread supply device 2 of the sewing machine head 1.
  • the thread tensioning mechanism 3 is configured to attach the end of the thread 11 suspended from the thread delivery pipe 28 a of the thread supply device 2 by a predetermined length to the needle 10.
  • the thread guide member 31 guides the guide member to a nearby position, a lever 132 provided with the thread clamp member 31 at the distal end, and a sliding piece 33 swingably supporting the base end of the lever 32.
  • a guide pipe 34 of a sliding piece 33 disposed substantially vertically in the thread tensioning mechanism body 30, and a belt 35 for raising and lowering the sliding piece 33 along the guide pipe 34.
  • the pinion 3 2a fixed to the base end of the lever 3 2 restricts the drive angle of the lever 32 in combination with the pinion 3 2a.
  • Middle rank of Drive s the guide grooves 37 formed in the thread tensioning mechanism main body 30 in a substantially vertical direction and the belt 35 by inserting the rollers 3 2 b disposed in the And a driving mechanism 38.
  • the thread tension mechanism 3 can be made compact, and in particular, the thread clamping The amount by which the member 31 protrudes forward from the sewing head 1 can be reduced.
  • the thread tensioning mechanism 3 drives the belt 35 to clamp the thread holding member 31 from the standby position substantially at the intermediate portion to the end of the thread 11 hanging from the thread delivery pipe 28a.
  • the bracket 1 b is automatically moved to the bracket 1 b protruding from the sewing machine head 1 so that the thread clamping member 31 can automatically clamp the end of the thread 11.
  • the shoe member 31e After passing through the end of the thread thread hanging from the delivery pipe 28a, the shoe member 31e is driven by a drive mechanism (not shown), and a part of the shoe 31e and the operating piece 3 1d The contact is released, the movable holding piece 31a is returned, and the thread 11 inserted between the movable holding piece 31a and the fixed holding piece 3b is held.
  • the thread holding member 31 is moved from the highest position to the lowest position, and the thread 11 guided to the position near the needle 0 is moved to the position of the needle 10.
  • the thread clamping member 31 is placed at the bottom of the thread tensioning mechanism main body 30 so that the end of the thread 11 that has been clamped can be released.
  • the drive mechanism 38 is configured to selectively drive the rotation shaft 38a of the reverse belt 35 in both forward and reverse directions by a motor (not shown).
  • the thread tensioning mechanism 3 has an appropriate position in the elevating path of the sliding piece 3 3, for example, a standby position near the intermediate position of the thread clamping member 31, and the thread clamping member 31 moves from the thread delivery pipe 28 a to
  • a limit switch (not shown) is provided at the highest position for holding the end of the hanging thread No. 1 and the lowest position for threading so that the position of the sliding piece 33 can be detected.
  • the E position of the limit switch shall be able to be adjusted appropriately.
  • the balance is mounted on the balance 41 and the sub-balance 42 of the balance mechanism 4.
  • the frame 1c provided with the needles 10 is moved in a horizontal plane.
  • the number of sets of needles 10 provided on the frame 1c may be increased or decreased, or the frame 1c may be configured to slide in a horizontal plane.
  • the balance 41 has a threading hole 41a at the distal end and a cutout 41b into which the drive pin 41c of the balance 41 is inserted at the base end.
  • the sub-balance 42 has a ring-shaped thread hooking hole 42 a, a lever 42 b having a thread hooking hole 42 a at its tip, and a sliding piece 4 slidably supporting the lever 42 b.
  • the magnet piece 4 2 e for elevating and lowering along the guide tube 34 in accordance with the raising and lowering of the thread holding member 3 1 and the roller 4 2 f provided at the other end of the lever 4 2 b come into contact with the thread hook.
  • a spring member 4 2 urges a shoe member 4 2 g for regulating the position of the hole 42 a and a roller 42 f provided at the other end of the lever 42 b so that the roller 42 f contacts the shoe member 42 g. h.
  • the auxiliary balance 42 of the balance mechanism 4 drives the belt 35 of the thread tensioning mechanism 3 so that the thread clamping member 31 is suspended from the standby position at the substantially middle portion from the thread delivery pipe 28a.
  • the sliding piece 4 2c is attracted to the thread clamping member 31 and also moves to the highest position, and the thread is sent out to the threading hole 42a.
  • the end of the thread 11 hanging from the tube 28a is inserted.
  • the yarn holding member 3 1 Move from the highest position to the lowest position.
  • the sliding piece 42c is also adsorbed by the thread holding member 31 and also descends, but the sliding piece 42c is further increased by the storage member 42i provided at approximately the middle position. Since the descent is prevented, the suction with the thread holding member 31 is released, and the robot stops at this position, that is, the standby position at the bottom dead center.
  • the lever 4 2b provided with the thread hooking hole 4 2a in which the thread 11 is inserted at the tip is replaced with the roller 4 provided at the other end.
  • the thread ⁇ ⁇ ⁇ is passed through the thread hook hole 4 ⁇ a formed at the tip of the balance 41.
  • a thread such as a trap be formed in the thread hooking hole 4 1a of the ceiling 41 in order to prevent the hooked thread 11 from slipping out.
  • 1 is the thread of the balance 4 mm thread hole 4 1a and the thread of the sub-balance 4 2 It is hung on the cauldron 42a and stabbed while being held in the required zigzag shape.
  • the balance 41 is reciprocated by the same drive mechanism as the conventional embroidery sewing machine, while the sub balance 42 is held at the standby position at the bottom dead center.
  • the threading mechanism 6 pulls the thread 11 guided to a position near the needle 10 by the thread tensioning mechanism 3 and the needle hole 10 O of the needle 10.
  • the thread 11 is held by the thread pull-out mechanism 61, the drive mechanism 62 of the thread pull-out mechanism 61, and the thread pinching member 31 of the thread tensioning mechanism 3.
  • the thread pulling mechanism 61 In order to more securely hold the air nozzle 63 provided on the thread holding member 3 1 for feeding the yarn toward the pulling mechanism 6 S and the thread 11 inserted through the thread pulling mechanism 61, by the thread pulling mechanism 61.
  • a thread pushing mechanism 64 disposed on the thread pulling mechanism 61 of FIG.
  • the thread pulling mechanism 61 includes a hook member 61 a having a hook-shaped tip and spacers 16 on both sides of the hook member 61 a.
  • Guide members 61b, 61b arranged via 1f, 61f, hook members 61a, guide members 61b, 61b, and spacers 61f, 61f.
  • a holding member for holding the tip member made of 6 g.
  • the guide members 61b and 61b are directed outward from each other so as to guide the hook member 61a to the center of the needle ⁇ 0, that is, the position of the needle hole 10a, when the guide member 61b contacts the needle 10.
  • the curved tips 61e, 61e it is constituted by a leaf spring formed in a shape to abut the side surface of the hook member 61a, and a thread hole 61c is formed substantially at the center thereof. Further, a yarn escape groove 61 d is formed from the yarn through hole 6 ⁇ c toward the tip.
  • the drive mechanism 62 of the thread pulling mechanism 61 is set up on the side of the sewing machine head 1 that supports the holding member 61g of the thread pulling mechanism 61.
  • the thread pushing mechanism 64 has a thread pushing piece 64a movably arranged via a shaft 64c on a thread pulling mechanism 61 arranged on the holding member 61g, and a direction for shielding the thread insertion hole 61c, that is, A thread spring 64b for urging the thread pressing piece 64a in the direction of pushing down the thread 11 along the side surface of the guide member 61b, and a thread pushing piece 64 piled on the urging force of the torsion spring 64b.
  • the thread pressing piece 64a and the operating pieces 64d, 64e of the thread pressing piece 64a formed on the frame 62a of the drive mechanism 62, respectively. Consists of
  • the threading mechanism 6 pushes the distal end of the driving lever 62b forward by the driving mechanism 62c, thereby piercing the base end of the driving lever 62b.
  • the pulling-out mechanism 61 is lowered via the holding member 61 g.
  • the tip of the drive lever 62b is further pushed forward by the drive mechanism 62c, whereby the pivot 62g of the drive lever 62b is advanced along the groove 62e formed in the frame 62a, and the drive is performed.
  • the pin 6 Advance the pull-out mechanism 61 via the holding member 61 g to which 1 h is fixed.
  • the drive mechanism 62 drives the drive lever 62b by the drive mechanism 62c to lower and advance the thread pull-out mechanism 61.
  • the hook member 61a is guided by the guide member 61b.
  • the thread selection mechanism 29 of the thread supply device 2 is driven as shown in FIGS. 14 to 15.
  • the thread delivery pipe 28a is moved to the left side (right side) to perform stimulation.
  • An auxiliary mechanism 5 including an upper thread clamp mechanism 51, a thread cutting mechanism 52, and a cut thread recovery mechanism 53 is disposed on the path around which the thread 11 is looped.
  • the upper thread clamp mechanism 51 is for temporarily clamping the thread 11 to prevent the new thread 11 from being unreeled from the bobbin 21 when cutting and collecting the thread 11.
  • a fixed holding piece 51a fixed to the sewing machine head 1 side, a movable holding piece 51b for clamping the thread 11 between the fixed holding piece 51a, and a movable holding piece It is composed of a driving mechanism 51c of 51b.
  • the thread cutting mechanism 52 is for cutting the thread ⁇ when exchanging the thread 11 or the like. As shown in FIG. 22, the thread cutting mechanism 52 includes a fixed blade 52a fixed to the sewing machine 1 side and a pivot 52b. And a driving mechanism 52d for the movable blade 52c.
  • the cut thread collecting mechanism 53 is for collecting the thread 11 that has been cut by the thread cutting mechanism 52 when, for example, replacing the thread 1 ⁇ , and as shown in FIG.
  • the operating rod 53c formed with the hook 53b for hooking 1 and the driving mechanism 53d of the operating rod 53c and the operating rod 53c are slidably inserted, and the cut thread 11 1 is pulled in.
  • the suction pipe 53e to be collected, the high pressure air introduction pipes 53f and 53g for generating a suction force in the suction pipe 53e, and the collected thread 11 detachably attached to the collection mechanism body 53a are separated. It consists of a collection container 53 h formed of a net to store.
  • the sewing machine head 1 is provided with a cover body 8 as shown in FIG.
  • the lower thread clamp machine 811 prevents the thread 11 below the lower thread clamp mechanism 8 1 from feeding out when the puncture starts, so that the end of the thread 11 1 comes out on the surface of the sewn cloth. This is for temporarily clamping the thread 11 to prevent threading.
  • the thread 1 1 is fixed between the fixed holding piece 8 1a fixed to the machine head 1 and the fixed holding piece 8 ⁇ a. And a driving mechanism 81c of the movable holding piece 8b.
  • the sensor 8 2 that detects the state of the thread 11 optically detects the return of the thread 1, and stops the stimulation when the return of the thread 11 occurs. To prevent the occurrence of defective products. As shown in FIG. 24, the light emitting and receiving element 82a, the light emitting and receiving element 82a and the thread 11 And mirrors 8 2 b opposed to each other.
  • FIGS. 25 to 32 show a second embodiment of the thread supply device 2 arranged above the sewing machine head of the embroidery sewing machine.
  • This yarn supply device 2 has a number of bobbins 2 1 that can be stored, and a pobin storage section 2 2 that can store a plurality of colored yarn pobbins 2 ⁇ and a bobbin storage section 22 that is integrated with the bobbin storage section 22.
  • a flat rectangular shape provided with a thread tension adjusting mechanism 25 provided with a thread, a thread length adjusting mechanism 27 for holding the thread 1 ⁇ sent out toward the needle 10 by a predetermined length, and a thread sending mechanism 28.
  • a thread adjusting mechanism 24 having a main body 24a and a thread feeding mechanism 28 corresponding to a required bobbin 21 are selectively positioned above a threading device 7 for threading a predetermined needle 10. And a thread selection mechanism 29 to be operated.
  • the number of the pobins 21 that can be stored in the pobin storage section 22 and the number of the thread tension adjusting mechanisms 25 need not necessarily match, and the number of the pobins is larger than the number of the thread tension adjusting mechanisms 25. Increase the number of bobbins 21 that can be stored in section 22 and change the bobbin 2 1 for threading to the thread tension adjustment mechanism 25. can do.
  • the bobbin storage section 22 stores, for example, a total of 28 bobbins 2 ⁇ of 4 ⁇ 7.
  • the bobbin storage section 22 has a spindle 22 a for inserting and supporting the bobbin 21, and a spindle 22 a.
  • a bobbin guide (not shown) suitable for the bobbin 21 to be used is provided around 22a, and a bottom lug 22c for pulling out the thread 11 of each pobin 21 so that it does not get tangled is installed on the bottom surface. I do.
  • a thread holder 23 is provided on the spindle 22a, and a total of 28 threads ⁇ 1 are pulled out from the thread holder 23 at an interval, and the thread of the thread adjusting mechanism 24 integrally attached to the lower city of the pobin storage space 22 is provided. Feed it into the tension adjustment mechanism 25. Eight out of a total of 28 yarns 1 mm are held by the yarn holder 23.
  • the thread holding member 23 includes a ceramic guide tube (not shown) disposed at the upper end opening of the spindle 22a, a hollow conduit of the spindle 22a, and a pipe member 23s communicating with the hollow conduit. And a ceramic guide tube 23t disposed at the tip end of the pipe member 23s, and the yarn 11 of each bobbin 21 is connected to the hollow conduit of the spindle 22a and the pipe member 23s. Through the thread tension adjusting mechanism 25.
  • the operation of inserting the yarn 11 into the hollow conduit of the spindle 22a and the pipe member 23s can be easily performed by blowing a high-pressure airflow together with the yarn 11 from the upper end opening of the guide tube 23q. It can be carried out.
  • the pobin housing section 22 is fixed to the sewing machine head 1 and disposed.
  • the storage unit 22 is divided into two equal parts on the left and right sides to form a unit. This is the upper part of the flat rectangular main body 24 a of the thread adjusting mechanism 24. It can be detachably attached to the device.
  • the bobbin storage section 22 stores, for example, a total of 20 bobbins 2 1 on the left and right, 2 x 5 in total, and a total of 20 bobbins 21.
  • bobbin guides (not shown) suitable for the pobin 21 used around the spindle 2 2a are arranged, and the thread of each bobbin 21 is placed on the bottom surface. Lay a felt 2 2 c to pull out 1 1 so that it does not become tangled.
  • the storage table 2 2 d on which the spindle 22 a is erected is attached to the guide rail 22 i formed on the upper part of the main body 24 a of the thread adjusting mechanism 24 so as to be removably attached.
  • the pipe member holding member 23 u fixed to the opening at the tip end of the pipe member 23 s communicating with the hollow conduit of the spindle 22 a is used as the storage member when detaching the storage member 22 d.
  • the storage bases 22 d are temporarily placed and stored along the guide rails 22 i.
  • the base support 2 2 d is fixed so that the base 2 2 d can slide smoothly, and the pipe member 23 s is supported to support the pipe member 23 s.
  • a pipe member support frame 22h is slidably provided to prevent drooping from adjusting and entanglement.
  • the storage table 2 2 d of the pobin storage section 22 be prepared in plural numbers of the number of heads of the sewing machine 1. Accordingly, when the color yarn is replaced, the storage unit 22d is replaced every time, and the time required for the replacement of the color yarn can be reduced.
  • the storage table 22 d of the pobin storage section 22 If the number of heads is twice as large as the number of heads, replacement of up to 40 colors can be performed in a short time.
  • the type (color) of each pobin 21 stored in the storage unit 2 2 d of the pobin storage unit 2 2 is stored in advance in the control unit of the embroidery sewing machine, thereby replacing the storage unit 2 2 d. By simply doing this, a large number of color yarns can be exchanged automatically.
  • the storage table 2 2 d is detachably attached by sliding on the guide rail 22 i formed on the upper part of the main body 24 a of the thread adjusting mechanism 24.
  • the table 22 d By mounting the table 22 d on the upper part of the main body 24 a of the thread adjusting mechanism 24, it is possible to removably attach it.
  • the number of divisions of the bobbin storage section 22 is not limited to two, but may be three or more.
  • the yarn tension adjusting mechanism 25 is provided on the outer surface of the flat rectangular main body 24 a of the yarn adjusting mechanism 24, and each of the yarns 11 from each pobin 2 ⁇ is provided.
  • a tension sensor 25 d for measuring the tension of the yarn 11 is provided on one of the yarn tension adjusting members 25 ⁇ so that a yarn breakage of the yarn 11 can be detected.
  • the signal from the tension sensor 25 d is converted into an electric signal from the electric contact 25 e disposed on the thread adjusting mechanism 24 to the electric contact 25 f disposed on the sewing machine head 1.
  • An indicator lamp that is sent to the control unit of the embroidery sewing machine via 5 g to control the drive of the embroidery sewing machine and displays the status of the upper and lower threads arranged on the sewing machine head 1 etc. (Omitted) Lights up to inform the operator of thread breakage.
  • a display device such as a liquid crystal display panel for displaying the state of the embroidery sewing machine to an operator and an information device such as a buzzer can be provided at an appropriate position of the embroidery sewing machine.
  • the thread tension for releasing the holding of the thread 11 by the thread tension adjusting member 25 b is used.
  • a release mechanism 26 is provided (for details, refer to the thread tension release mechanism 26 of the above-described second embodiment).
  • the sewing machine head 1 near the main body 24a of the thread adjusting mechanism 24 has a thread tension adjusting member 25b, 25c for adjusting the magnitude of the tension of the thread ⁇ ⁇ applied by the two thread tension adjusting members 25b, 25c.
  • Thread tension adjuster of 25h shall be provided.
  • the thread tension adjuster 25 h applies a tension equivalent to the tension applied to the thread ⁇ 1 via a balance 41, a sub-balance 42, a needle 10, etc., located below the thread supply device 2 described later. This makes it possible to hang the thread 1 1 on the balance 4 1, the auxiliary balance 4 2, the needle 10, etc. without hanging the thread 1 1 on the two thread tension adjusting members 25 b, 25 c
  • the magnitude of the tension of the thread 11 from each of the pobins 21 applied by the method can be uniformly adjusted.
  • the thread tension adjuster 25 h is provided with a magnet at the base thereof, and is provided at an appropriate position of the sewing machine head 1, more specifically, the thread 1 from each bobbin 21 toward the needle 10. 1 is provided so that it can be selectively detachably installed at a position below the yarn sending pipe 28 a of the yarn sending mechanism 28 provided for sending out the yarn 1.
  • a thread delivery mechanism 28 provided on the outer surface of the flat rectangular main body 24 a of the thread adjusting mechanism 24 is for smoothly delivering the thread 11 toward the needle 10.
  • the air nozzle 28 b is fixed so that the opening end of the air nozzle 28 b is located near the upper opening of the thread delivery pipe 28 a, and is positioned above the threading crab 7 and at the position where the pricking is performed.
  • High-pressure air against the air nozzle 28 b of the yarn delivery pipe 28 a The high-pressure air supply tube 28 f should be slidably provided so that high-pressure air can be supplied from the air supply tube 28 f.
  • the high-pressure air supply pipe 28 f and the air nozzle 28 b are connected to the high-pressure air supply pipe 28 f by sliding the high-pressure air supply pipe 28 f as shown in this embodiment. 8b and the high-pressure air supply pipe 28f and the sealing member provided at the open end of the air nozzle 28b.
  • the nozzle 28 b can be configured to be connected in a hermetically closed manner.
  • the thread selection mechanism 29 is selectively positioned above the threading device 7 for threading the thread delivery tube 28 a of the thread delivery mechanism 28 corresponding to the required bobbin 2 ⁇ to a predetermined needle 10.
  • the thread adjusting mechanism 24 is attached to the sliding shaft 29 i provided on the sewing machine head 1 together with the pobin storage section 22 so as to be slidable in a horizontal plane, and the adjacent thread adjusting mechanism is attached.
  • the main body 24a of the mechanism 24 is connected to each other by the connecting member 24e, and all the thread adjusting mechanisms along the sliding shaft 29i are driven by a drive source (not shown). 2 4a is interlocked and held, and above the threading device 7 for threading the thread delivery tube 28a of the thread delivery mechanism 28 corresponding to the required pobin 21 to the predetermined needle 10. It is configured so that it can be accurately positioned.
  • the thread selection mechanism 29 is controlled by the control unit of the sewing machine for stimulating fiber, and the control unit previously stores the type (color) of each of the pobbins 21 stored in the bobbin storage unit 22. In this way, a large number of color yarns can be automatically selected.
  • the configuration of the thread length adjusting mechanism 27 and the like provided below the thread tension adjusting mechanism 25 is the same as that of the first embodiment.
  • a second embodiment of a threading device 7 including a thread tensioning mechanism 3 and a threading mechanism 6 disposed below a thread supply device 2 of a sewing head 1 of a staple fiber sewing machine will be described in a third embodiment. 3 to 40.
  • the yarn tensioning mechanism 3 moves the end of the yarn 11 suspended from the yarn delivery pipe 28 a of the yarn supply device 2 by a predetermined length to a position near the needle 10.
  • the drive mechanism 38 is included.
  • the thread tensioning mechanism 3 is composed of the lever 32, the sliding piece 33 that moves up and down, and the like, so that the thread tensioning mechanism 3 can be made compact. The amount by which Head 1 protrudes forward can be reduced.
  • the thread tensioning mechanism 3 drives the belt 35 to move the thread holding member 31 from a substantially intermediate standby position (the sliding piece 33 is at the position of the position sensor 39c) to the open position of the thread holding member 31 (the position of the position sensor 39c).
  • the sliding piece 33 is positioned at the highest position where the end of the thread 1 ⁇ hanging from the thread delivery pipe 28a is clamped via the position sensor 39b (the position of the position sensor 39b). ) So that the thread clamp member 31 can automatically clamp the end of the thread 1 when it is moved to the bracket.
  • the thread holding member 31 By driving the belt 35 in this state, the thread holding member 31 is moved from the highest position (the sliding piece 33 is at the position of the position sensor 39a) to the lowest position (the sliding piece 33 is at the position of the position sensor 39d). ), And the thread 11 guided to the position near the needle ⁇ 0 is guided to the needle hole 1 O a of the needle 10, and after performing threading, the thread 1 held by the thread clamping member 31 is An operating member is swingably arranged below the thread tensioning mechanism main body 30 so that the end of the thread tensioning mechanism body 30 can be released, and the operating member projects the movable holding piece 31 a of the thread holding member 31.
  • the roller 31f disposed at the tip of the provided operation piece is pressed to operate, so that the movable holding piece 31a is piled up by the urging force of the spring member and opened (similar to the first embodiment).
  • the drive mechanism 38 is configured to be able to selectively drive the rotation shaft 38a of the re-belt 35 in both the forward and reverse directions by a motor (not shown).
  • the arrangement positions of the position sensors 39, 39b, 39c, and 39d can be adjusted as appropriate.
  • the air nozzle 63 As a mechanism for supplying high-pressure air to the air nozzle 63 disposed on the thread holding member 31, the air nozzle 63 is directly connected to a high-pressure air source (not shown) via a high-pressure air supply pipe.
  • the air nozzle 63 and the high-pressure air supply pipe arranged on the fixed side are fitted.
  • the air nozzle 63 and the high-pressure air supply pipe 63a are hermetically connected by a sealing member provided at the open end of the air nozzle 63 and the high-pressure air supply pipe 63a. It can be configured to be.
  • the opening and closing operation of the thread holding member 31 of the thread tensioning mechanism 3 is performed by a single member and an Although it is configured to be performed by members, the present invention is not limited to this.
  • the yarn is held between the movable holding piece 31a and the fixed holding piece 31b.
  • a torsion spring 3 1 j for urging the member 3 1 in the closing direction is provided to constitute the thread holding member 3 1, and the opening and closing operation of the thread holding member 3 ⁇ is performed at the upper and lower portions of the thread tensioning mechanism main body 30.
  • a drive mechanism 31 i thereof is provided to constitute the thread holding member 3 1, and the opening and closing operation of the thread holding member 3 ⁇ is performed at the upper and lower portions of the thread tensioning mechanism main body 30.
  • the frame 1c provided with the needles 10 is moved in a horizontal plane.
  • the number of sets of needles 0 provided on the frame 1c can be reduced, or the frame 1c can be configured to slide in a horizontal plane.
  • the ceiling 41 has a threading hole 41a at the distal end and a cutout 41b into which the drive pin 41c of the balance 41 is inserted at the base end.
  • the auxiliary balance 42 includes a ring-shaped thread hooking hole 42 a, a lever 42 having the thread hooking hole 42 a at the tip, and a sliding piece 4 slidably supporting the lever 42 b. 2 c, guide tube 4 2 d of sliding piece 4 2 c arranged substantially vertically in thread tensioning mechanism main body 30, and sliding piece 4 2 c with thread holding member of thread tensioning mechanism 3 3 Magnet piece 4 2 e for moving up and down along guide tube 34 in accordance with raising and lowering of thread holding member 3 1 by attracting to 1 and roller 4 2 f arranged at the other end of lever 4 2 b Abuts the shoe member 42 that regulates the position of the threading hole 42a, and the roller 42f disposed at the other end of the lever 42b so as to contact the shoe member 42g.
  • the balance 41 is reciprocally driven by the same drive mechanism as the conventional embroidery sewing machine, while the sub balance 42 is held at the standby position at the bottom dead center. Note that these configurations and operations are the same as in the above-described third embodiment.
  • the basic configuration of the threading mechanism 6 is the same as that of the first embodiment.
  • the thread pushing mechanism 64 has a shaft 64c attached to the thread pulling mechanism 6 as shown in FIG.
  • the tip 6 4 f of the thread pressing piece 6 4 a movably arranged through the hook is formed into a hook shape, and the thread 11 hooked on the hook member 6 1 a does not come off the hook member 6 1 a Like that.
  • the thread pushing mechanism 64 is used so that the thread ⁇ 1 is securely hooked on the hook member 6 1a of the thread pulling mechanism 61 of the threading mechanism 6.
  • the air nozzles 65a and 65b are provided on the side of the guide members 61b and 61b of the thread pull-out mechanism 61, as shown in a modified example shown in FIG.
  • the thread is threaded, and then the thread selecting mechanism 29 of the thread supply device 2 is driven to thereby control the thread. 11 While the 1 is laid, move the thread delivery tube 28a to the next step (to the right) to perform the stab.
  • An auxiliary mechanism including an upper thread clamping mechanism, a thread cutting mechanism, and a cut thread collecting mechanism 53 is provided on the path where the thread 11 is laid.
  • the cut thread collecting mechanism 53 is used when the thread 11 is replaced. It is for collecting the thread 11 cut by the structure, and as shown in FIGS. 39 to 40, an operating rod 53 formed with a hook 53b for hooking the thread 11 at its tip. And a driving mechanism 53d for the operating rod 53c and a suction pipe 53e, 53i for slidably penetrating the operating rod 53c to draw in and collect the cut thread 11. And suction pipes 53 f, 53 g for generating suction force or sending power to the suction pipes 53 e, 53 i, 53 j, and at the tip of the suction pipe 53 j.
  • the retractable container 53 h formed of a net that stores the collected yarn 1 that is detachably disposed, and the collection mechanism main body 53 a is set to the standby position with the driving shaft 53 m as the center.
  • the drive mechanism 53k is configured to swing and drive between the thread 11 and the collection position.
  • the embroidery sewing machine of the present embodiment is different from the embroidery sewing machine of the first embodiment.
  • sewing machine 1 In this cover body, the thread ⁇ 1 when the thread delivery pipe 28 a is moved to the embroidery position one step side (right side) while the thread 11 is laid
  • a lower thread clamp mechanism for clamping the thread 11 and a sensor for detecting the state of the thread 11 are arranged in the route.
  • the bobbins 21 of the respective color threads are stored in the bobbin storage sections 22 of the thread supply device 2 arranged above or separately from the sewing head of the embroidery sewing machine.
  • the yarn 11 drawn out from 2 ⁇ is wound over the yarn tension adjusting mechanism 24 via the yarn holder 23, and the end of the yarn 11 is hung from the yarn delivery pipe 28a by a predetermined length.
  • the thread delivery pipe 28a of the thread delivery mechanism 28 corresponding to the required bobbin 21 is selectively and accurately positioned above the threading device 7 for threading. Then, while driving the belt 35 of the yarn tensioning mechanism 3 while sending high-pressure air from the air nozzle 28 b into the yarn delivery pipe 28 a, the yarn clamping member 31 is moved near the intermediate position. From the standby position, the end of the thread 1 ⁇ ⁇ suspended from the thread delivery pipe 28 a is moved to the highest position for holding the end of the thread 1 ⁇ , and the end of the thread 1 ⁇ is held by the thread holding member 31.
  • the yarn length adjusting piece 27 c of the yarn length adjusting mechanism 27 is advanced while the resistance of the yarn tension adjusting mechanism 25 is not applied to the yarn 11 by the yarn tension releasing mechanism 26.
  • the yarn holding member 31 is lowered by driving the belt 35 of the yarn tensioning mechanism 3 while holding the weft 11 by a predetermined length, and the end of the yarn 11 is at the threading position.
  • the needle should be guided to a position near the needle 10.
  • the thread 11 stretched by the thread tensioning mechanism 3 between the thread delivery pipe 28 a and the position near the needle 10 at the threading position is the balance 4 1 of the balance mechanism 4 and It is hung on the sub balance 4 2.
  • the tip of the hook member 61a is lowered and advanced in advance in a state where the resistance of the thread tension adjustment mechanism 25 is applied to the thread 11. It is held by the thread holding member 3 1 of the thread tensioning mechanism 3 in the thread insertion hole 6 1 c of the guide member 6 1 b of the thread pull-out mechanism 6 that has passed through the needle hole 10 a of the needle 10.
  • the high-pressure air is fed from the air nozzle 63 provided on the yarn holding member 3 to the yarn pulling-out mechanism 61, and the yarn 11 is passed through the yarn 11 and the yarn length of the yarn length adjusting mechanism 27
  • the held yarn ⁇ 1 can be sent out, the holding of the yarn 11 by the yarn holding member 31 is released, and the yarn is held by the yarn length adjusting mechanism 27.
  • the thread 11 of the required length is inserted into the thread insertion hole 6 1c of the guide member 6 1b of the thread pull-out mechanism 61.
  • the yarn pulling-out mechanism 61 is retracted, and the thread pressing piece 64a is moved in a direction to shield the thread hole 61c.
  • the thread pulling-out mechanism 61 is retracted while accurately hooking the hook member 61a, and the threading is performed by pulling out the hook member 61a from the needle hole 10a.
  • the yarn delivery pipe 28a is moved one step side (right side) while the yarn 11 is being stretched. To do it.
  • the lower thread clamp mechanism 81 temporarily clamps thread 11 to prevent unwinding of thread 11 below the lower thread clamp mechanism 8 1, and the end of thread ⁇ 1 From coming out on the surface of the cloth.
  • the operating rod of the cut thread collecting mechanism 53 is clamped by the upper thread clamp mechanism 51 to clamp the thread 11 to prevent new thread from being unwound from the pobin 21.
  • the thread 11 is hooked on the hook 5 3b formed at the tip of 53 c, the thread ⁇ 1 is cut in front of and below the needle plate and in the thread cutting mechanism 52, and the cut thread 11 is removed.
  • the cut yarn is collected in the collection container 53 h via the suction pipe 53 e of the cut thread collection mechanism 53.
  • the steps of performing threading and stimulating fiber are repeated.
  • the threader in the sewing machine for embroidery of the present invention when a color thread is replaced or when a thread breaks, processing and the like can be automatically performed without human intervention, and the time required for the processing itself can be improved. Therefore, since the operating rate and productivity of the sewing machine can be improved, it can be suitably used particularly for an embroidery sewing machine in which many colored yarns are frequently replaced.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Sewing Machines And Sewing (AREA)

Abstract

A threading device in sewing machines for embroidery. The device comprises a thread nipping member (31) for nipping an end of a thread depending from a thread feeding pipe (28a), a thread stretching mechanism (3) for conducting to a position near a needle a thread nipped by the thread nipping member and putting the stretched thread on a thread take-up lever mechanism (4), and a threading mechanism (7) for conducting the thread to a needle hole. The threading mechanism comprises a hook member, of which a tip end is formed to be hook-shaped, a thread drawing mechanism provided on both sides of the hook member, and an air nozzle for feeding the thread nipped by the thread nipping member toward a thread insertion hole formed in a guide member of the thread drawing mechanism. The air nozzle stretches a thread on the hook member inserted into the needle hole, and both ends of the thread inserted through the thread insertion hole formed on the guide member of the threading mechanism are depressed along a side surface of the guide member by a thread depressing mechanism to be clipped on the hook member. It is possible to automatically change colored threads and fix thread breakage.

Description

明 細 書 刺繍用ミシンにおける糸通し装置 技術分野  Description Threader for embroidery sewing machines
本発明は、 刺 S8用ミシンに関し、 特に、 色糸 (本明細害において、 単に 「糸」 又は 「上糸」 という場合がある。 ) を交換するときや糸が切れたと きの処理等を人手を介さずに自動的に行うことができるようにした剌鐮用 ミシンに関するものである。 背長技術  The present invention relates to a stitching machine for stabbing S8, and in particular, performs manual processing when exchanging a colored thread (in this specification, simply referred to as “thread” or “upper thread”) or when the thread is broken. The present invention relates to a stimulating sewing machine that can be automatically performed without using a sewing machine. Height technology
従来、 刺繍用ミシンにおいて、 色糸を交換するときや糸が切れたときの 処理等は人手を介して行っていた。  Conventionally, in the case of an embroidery sewing machine, when a color thread is exchanged or when a thread breaks, processing has been performed manually.
ところで、 この色糸を交換するときや糸が切れたときの処理等を行う際 には、 ミシンを停止しなければならず、 特に、 色糸の交換を行う場合には, 1台の刺繍用ミシンに通常数頭程度から多い場合には 3 0頭程度備えられ るミシンへッ ドの各々について色糸の掛け替え作業を行う必要があること から、 ミシンの停止時間が数時間にも及び、 ミシンの稼懾率及び生産性が 低下するという問題点を有していた。 発明の開示  By the way, the sewing machine must be stopped when the color thread is replaced or when the thread breaks, etc., especially when the color thread is replaced, one embroidery When the number of sewing machines is usually several or more, it is necessary to change the color thread for each of the sewing heads equipped with about 30 heads. The problem was that the earning rate and productivity decreased. Disclosure of the invention
本発明は、 上記従来の刺編用ミシンの有する問題点を解決し、 色糸を交 換するときや糸が切れたときの処理等を人手を介さずに自動的に行うこと ができるようにするとともに、 それに要する時間自体も短縮することがで きるようにして、 ミシンの稼働率及び生産性を向上させた刺縷用ミシンを 提供することを目的とする。 The present invention solves the above-described problems of the conventional embroidery sewing machine, and can automatically perform processing such as replacement of a color thread or breakage of a thread without human intervention. In addition, the time required for the sewing machine can be shortened, and the operating efficiency and productivity of the The purpose is to provide.
上記目的を達成するため、 本発明の刺繍用ミシンにおける糸通し装置は、 糸送出管から垂下された糸の端部を挟持する糸挟持部材を備え、 該糸挟持 部材によリ挟持した糸を針の近傍位置まで導くとともに、 張設された糸を 天秤機構に掛ける糸張設機構と、 糸を針孔に導く糸通し機構とからなるこ とを特徴とする。  In order to achieve the above object, a threading device in an embroidery sewing machine according to the present invention includes a thread clamping member for clamping an end of a thread suspended from a thread delivery pipe, and a thread clamped by the thread clamping member. It is characterized by comprising a thread tensioning mechanism that guides the stretched thread to a balance mechanism, and a threading mechanism that guides the thread to the needle hole, while guiding the thread to the position near the needle.
本発明の刺纏用ミシンにおける糸通し装置によれば、 色糸を交換すると きや糸が切れたときの処理等を人手を介さずに自動的に行うことができ、 また、 それに要する時間自体を短縮することができ、 これによつて、 ミシ ンの稼働率及び生産性を向上することができる。  ADVANTAGE OF THE INVENTION According to the threading apparatus in the embroidery sewing machine of the present invention, it is possible to automatically perform processing such as when changing the color thread or when the thread breaks without human intervention, and the time itself required for the processing. And the operating rate and productivity of the machine can be improved.
また、 この刺纖用ミシンにおける糸通し装置によれば、 糸通しの精度を 向上することができる。  Further, according to the threading device in the staple fiber sewing machine, the accuracy of threading can be improved.
この場合において、 糸通し機構を、 糸引き抜き機構と、 空気ノズルとで 構成することにより、 糸通しの精度をよリ向上することができるとともに、 糸通し機構を簡略化することができる。  In this case, by configuring the threading mechanism with the thread pulling-out mechanism and the air nozzle, the accuracy of threading can be further improved, and the threading mechanism can be simplified.
また、 糸通し機構の案内部材に形成した糸揷通孔に挿通した糸の両端を 案内部材の側面に沿って押し下げる糸押下機構を配設することによリ、 糸 通しの精度をより向上することができる。 図面の簡単な説明  Further, by providing a thread pressing mechanism that pushes both ends of the thread inserted into the threading hole formed in the guide member of the threading mechanism along the side surface of the guide member, the threading accuracy is further improved. be able to. BRIEF DESCRIPTION OF THE FIGURES
第 1図は本発明の刺據用ミシンにおける糸供給装置の第 1実施例を示す 正面図であり、 第 2図はその側面図、 第 3図はその平面図、 第 4図は第 1 図の A— A線の断面図である。  FIG. 1 is a front view showing a first embodiment of a thread supply device in a sewing machine according to the present invention, FIG. 2 is a side view thereof, FIG. 3 is a plan view thereof, and FIG. FIG. 3 is a sectional view taken along line A-A of FIG.
また、 第 5図は本発明の剌纖用ミシンにおける糸供給装置の第〗 実施例 の糸保持体を示す斜視図であり、 第 6図は糸張力解除機構を示し、 (a ) は側面図、 (b) は正面図であり、 第 7図は糸長さ調節機構を示し、 (a) は側面図、 (b) は平面図であり、 第 8図は糸送出機構を示し、 (a) は 側面図、 (b) は正面図、 (c) は斜視図である。 FIG. 5 is a perspective view showing a thread holding body of a thread supply device in a thread feeding machine according to a second embodiment of the present invention. FIG. 6 shows a thread tension releasing mechanism. Is a side view, (b) is a front view, FIG. 7 shows a thread length adjusting mechanism, (a) is a side view, (b) is a plan view, and FIG. 8 shows a thread sending mechanism. (A) is a side view, (b) is a front view, and (c) is a perspective view.
第 9図は本発明の剌纖用ミシンにおける糸供給装置の第 1実施例の変形 例を示す正面図であり、 第〗 0図はその側面図、 第 1 1図はその要部の平 面図、 第 1 2図はその要部の斜視図である。  FIG. 9 is a front view showing a modified example of the first embodiment of the thread supply device in the stimulating fiber sewing machine of the present invention, FIG. 0 is a side view thereof, and FIG. 11 is a plan view of a main part thereof. FIG. 12 is a perspective view of the main part.
また、 第 1 3図は本発明の剌纖用ミシンにおける糸供給装置の第 1実施 例の変形例の糸保持体を示す側面断面図である。  FIG. 13 is a side sectional view showing a thread holder according to a modification of the first embodiment of the thread supply device in the stimulating fiber sewing machine of the present invention.
第 1 4図は、 本発明の刺繍用ミシンの糸通し装置の第 1実施例を示し、 (a) は側面図、 (b) は正面図である。  FIG. 14 shows a first embodiment of a threading device for an embroidery sewing machine according to the present invention, wherein (a) is a side view and (b) is a front view.
また、 第 1 5図は本発明の刺繍用ミシンの糸通し装置の糸張設機構の正 面図であり、 第 1 6図は糸張設機構の側面図であり、 第〗 7図は糸張設機 構の要部を示し、 (a) は平面図、 (b) は側面図、 (c) は正面図であ リ、 第 1 8図は糸通し機構を示し、 (a) は側面図、 (b) は正面図、 (c) は平面図であり、 第 1 9図は糸通し機構の糸押下機構の作動状態を 示す説明図であり、 第 20図は糸通し機搆の要部の斜視図であり、 第 21 図は糸引き抜き機構を示し、 (a) は平面図、 (b) は側面図、 (c) は 分解した斜視図であり、 第 22図は糸切断機構を示し、 (a) は平面図、 (b) は正面断面図であり、 第 23図は切断糸回収機構を示し、 (a) は 正面図、 (b) は平面図であり、 第 24図は糸の状態を検知するセンサー を示し、 (a) は平面図、 (b) は斜視図である。  FIG. 15 is a front view of a thread tensioning mechanism of the threading device for an embroidery sewing machine according to the present invention, FIG. 16 is a side view of the thread tensioning mechanism, and FIG. (A) is a plan view, (b) is a side view, (c) is a front view, FIG. 18 shows a threading mechanism, and (a) is a side view. Fig. 19 (b) is a front view, Fig. 19 (c) is a plan view, Fig. 19 is an explanatory view showing the operation state of the thread pressing mechanism of the threading mechanism, and Fig. 20 is a main part of the threading machine. 21 is a perspective view of FIG. 21, FIG. 21 shows a thread pull-out mechanism, (a) is a plan view, (b) is a side view, (c) is an exploded perspective view, and FIG. 22 shows a thread cutting mechanism. (A) is a plan view, (b) is a front sectional view, FIG. 23 shows a cut yarn collecting mechanism, (a) is a front view, (b) is a plan view, and FIG. (A) is a plan view and (b) is a perspective view. It is.
第 25図は本発明の剌總用ミシンの第 2実施例を示す正面図である。 第 26図は本発明の刺繍用ミシンにおける糸供給装置の第 2実施例の糸 保持体を示し、 (a) は正面図、 (b) は側面図、 (c) は平面図であり、 第 27図は本発明の刺纖用ミシンにおける糸供給装置の側面図であり、 第 2 8図は本発明の刺鐮用ミシンにおける糸供給装置の第 2実施例の変形例 を示し、 (a ) は正面図、 (b ) は側面図であり、 第 2 9図はその斜視図 であり、 第 3 0図は糸調節機構の正面図であり、 第 3 1図はパイプ部材の 要部の断面図であり、 第 3 2図は糸調節機構の要部の断面図である。 FIG. 25 is a front view showing a second embodiment of the stimulating sewing machine according to the present invention. FIG. 26 shows a thread holder of a second embodiment of the thread supply device in the embroidery sewing machine of the present invention, wherein (a) is a front view, (b) is a side view, and (c) is a plan view. FIG. 27 is a side view of the thread supply device in the staple fiber sewing machine of the present invention. FIG. 28 shows a modified example of the second embodiment of the thread supply device in the sewing machine according to the present invention, in which (a) is a front view, (b) is a side view, and FIG. 29 is a perspective view thereof. FIG. 30 is a front view of the yarn adjusting mechanism, FIG. 31 is a cross-sectional view of a main part of the pipe member, and FIG. 32 is a cross-sectional view of a main part of the yarn adjusting mechanism.
第 3 3図は、 本発明の刺縲用ミシンの糸通し装置の第 2実施例の正面図 であり、 第 3 4図はその側面図である。  FIG. 33 is a front view of a second embodiment of the threading device for a sewing machine according to the present invention, and FIG. 34 is a side view thereof.
また、 第 3 5図は糸張設機構の糸挟持部材の変形例を示し、 (a ) は正 面図、 (b ) は平面図、 (c ) は側面図であり、 第 3 6図はその斜視図で あり、 第 3 7図は糸引き抜き機構の斜視図であり、 第 3 8図は糸引き抜き 機構の変形例の斜視図であり、 第 3 9図は糸回収機構を示し、 (a ) は平 面図、 (b ) は正面図であり、 第 4 0図はその斜視図である。 発明を実施するための最良の形態  FIG. 35 shows a modified example of the thread clamping member of the thread tensioning mechanism, wherein (a) is a front view, (b) is a plan view, (c) is a side view, and FIG. FIG. 37 is a perspective view of a thread pull-out mechanism, FIG. 38 is a perspective view of a modified example of the thread pull-out mechanism, FIG. 39 is a perspective view of a thread recovery mechanism, and FIG. ) Is a plan view, (b) is a front view, and FIG. 40 is a perspective view thereof. BEST MODE FOR CARRYING OUT THE INVENTION
以下、 本発明の刺纏用ミシンの実施の形態を図面に基づいて説明する。 第 1図〜第 2図に示すように、 刺繍用ミシンは、 複数のミシンへッ ド 1 、 糸供給装置 2、 糸張設機構 3及び糸通し機構 6からなる糸通し装置 7、 天 秤機構 4、 切断糸回収機構等の補助機構 5等からその主要部が構成される。 なお、 この実施例の図は、 1台の刺纏用ミシンに数頭程度から多い場合 には 3 0頭程度備えられるミシンへッ ドのうちの 1頭を例示的に示したも のである。 そして、 図示した以外の他のミシンへッ ドにも実施例のものと 同様の構成を採用するとともに、 各ミシンへッ ドを共通の各種の駆動源に より同期して駆動することができるようにし、 また、 必要に応じて、 共通 の駆動源と各ミシンへッ ドとの間にクラッチを介在したり、 各ミシンへッ ド毎に独立した駆動源を配設することによって、 各ミシンへッ ドを独立し て駆動することができるようにするが、 これらの機構は、 従来公知の刺纔 用ミシンと基本的な相違はない。 Hereinafter, embodiments of a sewing machine according to the present invention will be described with reference to the drawings. As shown in FIGS. 1 and 2, the embroidery sewing machine is composed of a plurality of sewing machine heads 1, a thread supply device 2, a thread tensioning mechanism 3, and a threading mechanism 6, a threading device 7, and a balance mechanism. 4. The main part is composed of auxiliary mechanisms 5 such as a cut thread recovery mechanism. The drawing of this embodiment exemplarily shows one of the sewing machine heads provided with about 30 to about 30 heads in one sewing machine. The same configuration as that of the embodiment is applied to other sewing heads other than those shown in the figure, and each sewing head can be synchronously driven by various common driving sources. If necessary, a clutch is interposed between the common drive source and each sewing machine head, or an independent drive source is provided for each sewing machine Heads can be driven independently, but these mechanisms are There is no fundamental difference from the sewing machine.
また、 本実施例の刺繍用ミシンのミシンへッ ドが備えている糸供給装置 Also, a thread supply device provided in the sewing machine head of the embroidery sewing machine of the present embodiment.
2、 切断糸回収機構等の補助機構 5及び糸通し装置 7は、 もちろんそのす ベてを備えることが好ましいが、 場合によっては、 その一部の装置を同様 の作用を奏する他の機構に置換したり、 また、 省略することもできる。 また、 本実施例において、 各種駆動機構の駆動源として用いているエア ーシリンダ、 ソレノィ ド等は、 その都度記載しないが必要に応じて他の適 宜の駆動源に置換することができる。 2. Of course, it is preferable that the auxiliary mechanism 5 such as a cut thread collecting mechanism and the threading device 7 have all of them, but in some cases, some of the devices are replaced with other mechanisms having the same effect. And can also be omitted. In this embodiment, air cylinders, solenoids, and the like used as drive sources for various drive mechanisms may be replaced with other appropriate drive sources as needed, although not described each time.
また、 本実施例において、 各種駆動機構と駆動源との接続は、 リンク機 構、 レバー機構、 ワイヤー機構等の接続機構により行っているが、 この接 統機構は、 その都度記載しないが、 必要に応じて実施例以外の他の適宜の 接続機構に置換することができる。  Further, in this embodiment, the connection between the various drive mechanisms and the drive source is performed by connection mechanisms such as a link mechanism, a lever mechanism, and a wire mechanism. However, this connection mechanism is not described each time, but is necessary. Can be replaced with another appropriate connection mechanism other than the embodiment.
また、 本実施例において、 糸を針に向けて送り出すために用いる高圧空 気源、 ェアーシリンダの駆動等に用いる高圧空気源としては、 コンプレツ サ一のほか任意の高圧空気発生装置を用いることができる。  In this embodiment, as a high-pressure air source used to feed the yarn toward the needle and a high-pressure air source used to drive the air cylinder, any high-pressure air generator other than the compressor may be used. it can.
なお、 これらの点は、 下記の他の実施例の場合も同様である。  These points are the same in the following other embodiments.
刺纏用ミシンのミシンへッ ド〗 の上部に S設する糸供給装置 2の第 1実 施例を、 第 1図〜第 8図に示す。  FIGS. 1 to 8 show a first embodiment of the thread supply device 2 installed in the upper part of a sewing head of a sewn-up sewing machine.
この糸供給装置 2は、 複数個の色糸のポビン 2〗が収納できるボビン収 納部 2 2と、 ボビン収納部 2 2と一体化して配設した、 収納可能なボビン 2 1 の個数に対応して設けた糸張力調節機構 2 5、 針 1 0に向けて送り出 す糸 1 1 を所定長さだけ保持する糸長さ調節機構 2 7及び糸送出機構 2 8 を備えた半円简形状の本体 2 4 aを有する糸調節機構 2 4と、 所要のボビ ン 2 1 に対応する糸送出機構 2 8を所定の針 1 0に糸通しを行う糸通し装 置 7の上方に選択的に位置させる糸選択機構 2 9とからなる。 そして、 本実施例においては、 ボビン収納部 2 2とこれと一体化して配 設する糸調節機構 2 4をュニッ 卜化して構成し、 これをミシンヘッ ド 1 に 着脱自在に取り付けるようにしている。 This yarn supply device 2 has a bobbin storage section 2 2 that can store a plurality of colored yarn posbins 2〗, and the number of bobbins 2 1 that can be stored integrated with the bobbin storage section 22. A semi-circular 糸 shape provided with a thread tension adjusting mechanism 25 provided with a thread, a thread length adjusting mechanism 27 that holds the thread 11 sent out toward the needle 10 by a predetermined length, and a thread sending mechanism 28 A thread adjusting mechanism 24 having a main body 24 a and a thread sending mechanism 28 corresponding to a required bobbin 21 are selectively disposed above a threading device 7 for threading a predetermined needle 10. And a thread selection mechanism 29 to be positioned. In the present embodiment, the bobbin housing section 22 and the thread adjusting mechanism 24 provided integrally with the bobbin housing section 22 are formed as a unit, and this is detachably attached to the sewing head 1.
ポビン収納部 2 2は、 例えば、 上段にやや前方に向けて傾斜して 1 2個、 下段に水平に 6個の合計 1 8個のポビン 2 1 を収納するようにしたもので、 ボビン収納部 2 2には、 その底面にボビン 2 1 を挿入、 支持するスピンド ル 2 2 aを立設するとともに、 その上部に各ポビン 2 1の糸 1 1 をもつれ ないように引き出すための糸保持体 2 3を設け、 合計 1 8本の糸 1 1 を糸 保持体 2 3から間隔をあけて引き出し、 ポビン収納部 2 2の下部に一体に 取り付けた糸調節機構 2 4の糸張力調節機構 2 5に送り込むようにする。 糸保持体 2 3は、 各ポビン 2 1間に立設した摇動片支持軸 2 3 cに糸 1 1 をもつれないように引き出すための糸揷通孔 2 3 bを穿設した摇動片 2 3 aをボビン 2 1 の上方に摇動可能に配設するとともに、 摇動片 2 3 aの 基部に形成した切欠き 2 3 dを摇動片支持軸 2 3 cに突設した突起 2 3 e に嵌合することにより摇動片 2 3 aを所定の位置で固定できるようにして 構成する。  The pobin storage section 22 is, for example, configured to store a total of 18 pobins 2 1, that is, 12 pieces inclining slightly forward in the upper row and 6 pieces in the lower row horizontally. 2 2, a bobbin 21 is inserted into the bottom surface thereof, and a spindle 22 a for supporting the bobbin 21 is erected, and a thread holder 2 for pulling out the thread 11 of each pobin 21 on the upper portion so as not to be tangled. 3 is provided, and a total of 18 yarns 1 1 are pulled out from the yarn holder 2 3 at an interval, and the yarn tension adjustment mechanism 2 4 of the thread adjustment mechanism 2 4 attached integrally to the lower part of the pobin storage 2 2 Send it in. The thread holding member 23 has a threading hole 23 b for pulling out the thread 11 so that the thread 11 is not entangled in the threading piece support shaft 23 c provided between the pobins 21. 23 a is movably arranged above the bobbin 21, and a notch 23 d formed at the base of the moving piece 23 a is formed by a protrusion 2 protruding from the moving piece support shaft 23 c. The moving piece 23a is fixed at a predetermined position by fitting to 3e.
摇動片 2 3 aを摇動可能に SB設することにより、 ボビン収納部 2 2に簡 易にボビン 2 1 を着脱することができるものとなる。  By arranging the movable piece 23 a so as to be movable SB, the bobbin 21 can be easily attached to and detached from the bobbin storage section 22.
なお、 摇動片支持軸 2 3 cの上端には、 軸方向の清 2 3 f を形成し、 こ の溝 2 3 f の上端を若干拡開させることにより、 摇動片 2 3 aの基部が摇 動片支持軸 2 3 cから抜け出ないようにする。  An axial screen 23 f is formed at the upper end of the moving piece support shaft 23 c, and the upper end of the groove 23 f is slightly widened to form the base of the moving piece 23 a. To prevent it from coming out of the moving piece support shaft 23c.
糸張力調節機構 2 5は、 糸調節機構 2 4の半円简形状の本体 2 4 aの外 周面に設けられた、 各ポビン 2 1 からの糸〗 1毎に 3個の糸張力調節部材 2 5 a , 2 5 b , 2 5 cを有する。  The thread tension adjusting mechanism 25 includes three thread tension adjusting members for each thread from each pobin 21 provided on the outer circumferential surface of the semicircular main body 24 a of the thread adjusting mechanism 24. 25 a, 25 b, and 25 c.
このうち〗つの糸張力調節部材 2 5 cには、 糸 1 1 の張力を測定する張 力センサー 2 5 dを配設し、 糸〗 1の糸切れ等を検知できるようにする。 この張力センサー 2 5 dからの信号は、 電気信号として、 糸調節機構 2 4に配設した電気接点 (図示省略) からミシンへッ ド 1 に配設した電気接 点を備えた電気回路 (図示省略) を介して刺繍用ミシンの制御部に送られ. 剌繍用ミシンの駆動を制御するとともに、 ミシンヘッ ド 1等に配設した上 糸及び下糸の状態を表示する表示ランプ (図示省略) を点灯することによ リ作業者に糸 1 1 の糸切れを知らせるようにする。 Of these, one of the thread tension adjusting members 25 c has a tension for measuring the tension of thread 11. A force sensor 25 d is provided so that the thread breakage of thread # 1 can be detected. The signal from the tension sensor 25 d is converted into an electric signal from an electric contact (not shown) provided on the thread adjusting mechanism 24 to an electric circuit (shown in the drawing) provided with an electric contact provided on the sewing machine head 1. Sent to the control unit of the embroidery sewing machine via.). A display lamp (not shown) that controls the drive of the embroidery sewing machine and displays the state of the upper and lower threads arranged on the sewing machine head 1 and the like. Is turned on to inform the re-worker of thread breakage.
なお、 表示ランプのほか、 刺繽用ミシンの適宜位置には、 作業者に刺繍 用ミシンの状態を表示するための液晶表示盤等の表示装置と、 ブザー等の 警報装置を設けることができる。  In addition to the display lamp, a display device such as a liquid crystal display panel for displaying the state of the embroidery sewing machine to an operator and an alarm device such as a buzzer can be provided at an appropriate position of the embroidery sewing machine.
また、 糸 1 1 を針 1 0に向けて送り出す際に、 糸 1 1 に大きな抵抗がか からないようにするために、 糸張力調節部材 2 5 bによる糸 1 1の保持を 解除する糸張力解除機構 2 6を配設する。  Also, in order to prevent a large resistance from being applied to the thread 11 when feeding the thread 11 toward the needle 10, the thread tension for releasing the holding of the thread 11 by the thread tension adjusting member 25 b is used. Release mechanism 26 is provided.
この糸張力解除機構 2 6は、 第 6図に示すように、 ミシンヘッ ド 1側に 設けたソレノィ ド 2 6 aによリ摇動操作される糸張力解除板 2 6 bにより, 操作軸 2 6 cを介して糸張力調節部材 2 5 bのばねを圧縮操作し、 糸張力 調節部材 2 5 bによる糸 1 〗 の保持を解除するように構成する。  As shown in FIG. 6, the thread tension release mechanism 26 is operated by a thread tension release plate 26 b which is operated by a solenoid 26 a provided on the sewing machine head 1 side. The spring of the thread tension adjusting member 25b is compressed by way of c to release the holding of the thread 1 に よ る by the thread tension adjusting member 25b.
糸張力調節機構 2 5の下方に設けられた糸長さ調節機構 2 7は、 針 1 0 に向けて送り出す糸 1 1 を所定長さだけ保持するためのもので、 この糸長 さ調節機構 2 7により保持された糸 1 1 は、 糸 1 1 の先端が糸通し装置 7 によリ針 1 0の近傍まで導かれたとき糸長さ調節機構 2 7を解除すること によリ送り出され、 刺鎗作業を開始するときに必要とされる所定長さの糸 1 7が針 1 0に揷通される。  A thread length adjusting mechanism 27 provided below the thread tension adjusting mechanism 25 is for holding a predetermined length of the thread 11 to be sent out toward the needle 10. The thread 11 held by 7 is sent out by releasing the thread length adjusting mechanism 27 when the tip of the thread 11 is guided to the vicinity of the needle 10 by the threading device 7, A thread 17 of a predetermined length required for starting the piercing operation is passed through the needle 10.
この糸長さ調節機構 2 7は、 第 7図に示すように、 ソレノィ ド (図示省 略) によりワイヤー 2 7 a及びレバー 2 7 bを介して摺動操作される糸長 さ調節片 2 7 cを突出することにより、 糸 1 1 を所定長さだけ保持し、 糸 長さ調節片 2 7 cを後退することにより保持した糸〗 1 を送り出すように 構成する。 As shown in FIG. 7, the thread length adjusting mechanism 27 is a thread length that is slid by a solenoid (not shown) via a wire 27a and a lever 27b. The length adjusting piece 27c is projected to hold the yarn 11 by a predetermined length, and the held yarn〗 1 is fed out by retracting the yarn length adjusting piece 27c.
この場合において、 糸長さ調節片 2 7 cの先端は、 糸〗 1 を保持しやす くするために凹形状に形成するようにする。  In this case, the tip of the thread length adjusting piece 27c is formed in a concave shape so as to easily hold the thread # 1.
糸長さ調節機構 2 7の下方の、 糸調節機構 2 4の半円简形状の本体 2 4 aの外周面に設けられた糸送出機構 2 8は、 針 1 0に向けて糸 1 1 を円滑 に送り出すためのもので、 第 8図に示すように、 糸 1 1 を糸通し装置 7の 上方に導く糸送出管 2 8 aと、 高圧空気源 (図示省略) に接続され、 高圧 空気流により糸 1 1 を糸通し装置 7に向けて送り出すための空気ノズル 2 8 bとを有する。  The thread sending mechanism 28 provided on the outer peripheral surface of the semicircular main body 24 a of the thread adjusting mechanism 24 below the thread length adjusting mechanism 27 moves the thread 11 toward the needle 10. As shown in Fig. 8, it is connected to a thread delivery pipe 28a that guides the thread 11 above the threading device 7 and a high-pressure air source (not shown). And an air nozzle 28 b for sending out the yarn 11 toward the threading device 7.
この場合において、 空気ノズル 2 8 bは、 糸通し位置、 すなわち、 糸通 し装置 7の上方に位置する糸送出管 2 8 aの上部開口の近傍に空気ノズル 2 8 bの開口端が位置するように固定し、 さらに、 糸通し装置 7の上方に 位置する糸送出管 2 8 aから垂下された糸 1 1 を糸通し装置 7が正確に挟 持できるように、 糸通し装置 7の上方に位置する糸送出管 2 8 aを除いて、 ねじりばね 2 8 cの付勢力によリ摇動軸 2 8 dを中心にして糸送出管 2 8 aを傾転させるようにするとともに、 糸通し装置 7の上方に位置する糸送 出管 2 8 aをミシンへッ ド 1 に固定した姿勢保持片 2 8 eに当接させるか, あるいは、 適宜の駆動機構 (図示省略) によって操作することにより、 ね じりばね 2 8 cの付勢力に抗して起立させるようにする。  In this case, the air nozzle 28 b is located at the threading position, that is, the opening end of the air nozzle 28 b is located near the upper opening of the thread delivery pipe 28 a located above the threading device 7. So that the thread 11 hanging down from the thread delivery pipe 28 a located above the threading device 7 can be pinched accurately by the threading device 7. Except for the thread delivery pipe 28a located, the biasing force of the torsion spring 28c causes the thread delivery pipe 28a to tilt around the drive shaft 28d, and the threader The thread delivery pipe 28a located above the device 7 is brought into contact with the posture holding piece 28e fixed to the sewing machine head 1 or by operating the drive mechanism (not shown). The torsion spring 28 is set up against the urging force of c.
糸選択機構 2 9は、 所要のポビン 2〗 に対応する糸送出機構 2 8の糸送 出管 2 8 aを所定の針 1 0に糸通しを行う糸通し装置 7の上方に選択的に 位置させるもので、 糸調節機構 2 4をその底板 2 4 bを介して摇動自在に 装着するためにミシンへッ ド 1上に配設される支軸 2 9 aと、 駆動源 (図 示省略) に連結されたリンク 2 9 cにより支軸 2 9 aを摇動軸として摇動 駆動される摇動体 2 9 bと、 糸調節機構 2 4の底板 2 4 bに穿設した透孔 2 4 cに嵌合し、 摇動体 2 9 bと共に糸調節機構 2 4を摇動駆動する摇動 体 2 9 bに突設したピン 2 9 dとからなる。 The thread selection mechanism 29 is selectively positioned above the threading device 7 for threading the thread delivery pipe 28 a of the thread delivery mechanism 28 corresponding to the required pobin 2 に to a predetermined needle 10. A spindle 29 a disposed on the sewing machine head 1 for movably mounting the thread adjusting mechanism 24 via its bottom plate 24 b, and a drive source (see FIG. (Not shown) A moving body 29 b that is driven and driven by a spindle 29 a as a driving axis by a link 29 c connected to, and a through hole formed in a bottom plate 24 b of the thread adjusting mechanism 24. The pin 29 d is fitted with the pin 24 c and projects from the pin 29 d for driving the thread adjusting mechanism 24 together with the pin 29 b.
この場合、 所要のボビン 2 1 に対応する糸送出機構 2 8の糸送出管 2 8 aを所定の針 1 0に糸通しを行う糸通し装置 7の上方に正確に位置させる ために、 駆動源 (図示省略) に連結されたリンク 2 9 eにより支軸 2 9 f を摇動軸として摇動駆動される摇動体 2 9 gの先端に位置決めローラ 2 9 hを配設し、 この位置決めローラ 2 9 hを、 糸調節機構 2 4の底板 2 4 b の周緣に糸送出機構 2 8の糸送出管 2 8 aの角度に合わせて刻設した歯車 2 4 dに嵌合するようにする。  In this case, in order to accurately position the thread delivery pipe 28 a of the thread delivery mechanism 28 corresponding to the required bobbin 21 above the threading device 7 for threading a predetermined needle 10, a drive source (Not shown) A positioning roller 29 h is disposed at the tip of a moving body 29 g that is driven by using a supporting shaft 29 f as a driving shaft by a link 29 e connected to the positioning roller 2 e. 9 h is fitted to a gear 24 d engraved around the circumference of the bottom plate 24 b of the thread adjusting mechanism 24 so as to match the angle of the thread delivery tube 28 a of the thread delivery mechanism 28.
この場合、 糸選択機構 2 9は剌纏用ミシンの制御部によって制御される ようにし、 制御部にポビン収納部 2 2に収納された各ポビン 2 1の種類 (色) を予め記憶させておくことにより、 多数の色糸の選択を自動的に行 うことができるようにする。  In this case, the thread selection mechanism 29 is controlled by the control unit of the stimulating sewing machine, and the control unit previously stores the type (color) of each of the pobins 21 stored in the pobin storage unit 22. In this way, a large number of color yarns can be automatically selected.
なお、 糸調節機構 2 4の半円筒形状の本体 2 4 aの外周面の適宜位置に は、 各ボビン 2 1 からの糸 1 1 をもつれないように保持するために、 糸挿 通孔を略等間隔に形成した糸保持体 2 0 a, 2 0 b , 2 0 c , 2 0 d , 2 O eを設けることが望ましい。  At an appropriate position on the outer peripheral surface of the semi-cylindrical body 24 a of the thread adjusting mechanism 24, a thread insertion hole is formed to hold the thread 11 from each bobbin 21 so as not to be entangled. It is desirable to provide the yarn holders 20a, 20b, 20c, 20d, and 2Oe formed at equal intervals.
また、 糸調節機構 2 4を構成する、 糸張力調節機構 2 5及び糸送出機構 2 8は、 それぞれボビン収納部 2 2に収納可能なポビン 2 1の個数に対応 して、 すなわち、 本実施例においては 1 8組を、 糸調節機構 2 4の半円筒 形状の本体 2 4 aの外周面に設けるようにしているが、 糸張力解除機構 2 6、 糸長さ調節機構 2 7並びに糸送出機構 2 8の空気ノズル 2 8 b及び姿 勢保持片 2 8 eは、 いずれもミシンヘッ ド 1側に 1個配設し、 1 8組のこ れら機構のうち所定の位置にあるものを操作又は所定の位置にあるものと 協動するように、 すなわち、 1 8組のこれら機構で共用するものとする。 また、 ボビン収納部 2 2とこれと一体化して配設する糸調節機構 2 4を ュニッ 卜化したもの (以下、 「ュニッ 卜」 という。 ) は、 望ましくは、 ミ シンヘッ ド 1 の頭数の複数倍個用意しておく。 これにより、 色糸の交換を 行う場合にはュニッ 卜ごと交換して色糸の交換に要する時間を短縮するこ とができる。 例えば、 本実施例のュニッ トをミシンへッ ドの頭数の 2倍個 用意しておけば、 最大 3 6色の色糸の交換を短時間で行うことができる。 この場合、 刺鐮用ミシンの制御部にボビン収納部 2 2に収納された各ポビ ン 2 1 の種類 (色) を予め記憶させておくことにより、 ュニッ 卜を交換す るだけで、 多数の色糸の交換を自動的に行うことができる。 Further, the thread tension adjusting mechanism 25 and the thread sending mechanism 28 constituting the thread adjusting mechanism 24 correspond to the number of the pobins 21 that can be stored in the bobbin storing section 22 respectively, that is, in the present embodiment. , 18 sets are provided on the outer peripheral surface of the semi-cylindrical body 24 a of the thread adjusting mechanism 24, but the thread tension releasing mechanism 26, the thread length adjusting mechanism 27, and the thread sending mechanism One air nozzle 28 b and posture holding piece 28 e are provided on the machine head 1 side. One of these mechanisms at a predetermined position shall be operated or cooperated with the one at a predetermined position, that is, shared by 18 sets of these mechanisms. In addition, the bobbin housing section 22 and the thread adjusting mechanism 24 integrally provided with the bobbin housing section 22 (hereinafter referred to as “unit”) preferably have a plurality of sewing head 1 heads. Prepare twice as many. Thereby, when exchanging the color thread, it is possible to shorten the time required for exchanging the color thread by exchanging the whole unit. For example, if the unit of this embodiment is prepared twice as many as the number of heads of the sewing machine, it is possible to exchange color threads of up to 36 colors in a short time. In this case, the type (color) of each of the pobbins 21 stored in the bobbin storing section 22 is stored in advance in the control section of the embroidery sewing machine. Can be automatically changed.
また、 本実施例においては、 ポビン収納部 2 2とこれと一体化して配設 する糸調節機構 2 4をュニッ 卜化して構成し、 これをミシンへッ ド 1 に着 脱自在に取り付けるようにしているが、 これらをミシンへッ ド 1 に一体的 に固定して取り付けることもできる。  Further, in the present embodiment, the pobin storage section 22 and the thread adjusting mechanism 24 provided integrally therewith are formed as a unit, and this is detachably attached to the sewing machine head 1. However, these can be fixedly attached to the sewing machine head 1 as well.
また、 本実施例においては、 所要のボビン 2 1 に対応する糸送出機構 2 8の糸送出管 2 8 aを所定の針 1 0に糸通しを行う糸通し装置 7の上方に 選択的に位置させるため、 糸選択機構 2 9により糸調節機構 2 4を支軸 2 9 aを摇動軸として摇動駆動するようにしているが、 糸選択機構として、 水平面内で摺動する機構を採用することもできる。  In the present embodiment, the thread delivery tube 28 a of the thread delivery mechanism 28 corresponding to the required bobbin 21 is selectively positioned above the threading device 7 for threading a predetermined needle 10. For this purpose, the yarn adjusting mechanism 24 is driven by the yarn adjusting mechanism 24 with the support shaft 29 a as the driving axis, but a mechanism that slides in a horizontal plane is adopted as the yarn selecting mechanism. You can also.
次に、 刺纖用ミシンのミシンへッ ド 1 の上部に配設する糸供給装置 2の 第 1実施例の変形例を、 第 9図〜第 1 3図に示す。  Next, FIGS. 9 to 13 show modified examples of the first embodiment of the thread supply device 2 disposed above the sewing head 1 of the staple fiber sewing machine.
この糸供給装置 2は、 複数個の色糸のポビン 2 1が収納できるポビン収 納部 2 2と、 ボビン収納部 2 2と一体化して配設した、 収納可能なポビン 2 1 の個数に対応して設けた糸張力調節機構 2 5、 針 1 0に向けて送り出 す糸 1 1を所定長さだけ保持する糸長さ調節機構 (図示省略。 上記第 1実 施例参照) 及び糸送出機構 28を備えた半円筒形状の本体 24 aを有する 糸調節機構 24と、 所要のボビン 21に対応する糸送出機構 28を所定の 針 10に糸通しを行う糸通し装置 7の上方に選択的に位置させる糸選択機 構 29とからなる。 This thread supply device 2 has a number of pobins 2 1 that can be stored, and a pobin storage section 2 2 that can store a plurality of color thread pobins 2 1, and a bobbin storage section 22 that is integrated. Sent out toward the needle 10 and the thread tension adjustment mechanism 25 A thread adjusting mechanism 24 having a semi-cylindrical main body 24 a having a thread length adjusting mechanism (not shown; see the first embodiment described above) for holding the thread 11 by a predetermined length; A thread selecting mechanism 29 for selectively positioning a thread sending mechanism 28 corresponding to a required bobbin 21 above a threading device 7 for threading a predetermined needle 10.
そして、 本実施例においては、 ボビン収納部 22とこれと一体化して配 設する糸調節機構 24の上半部分、 すなわち、 収納可能なボビン 21の個 数に対応して設けた糸張力調節機構 25を、 第 9図及び第 12図に詳示す るように、 左右に二等分して、 ュニッ ト化して構成し (以下、 「ュニッ 卜 2 A, 2 B」 という。 ) 、 これをミシンヘッ ド 1に SB設した糸選択機構 2 9に、 糸調節機構 24の底板 24 bを介して、 着脱自在に取り付けるよう にしている。  In the present embodiment, the bobbin housing 22 and the upper half of the yarn adjusting mechanism 24 provided integrally therewith, that is, the yarn tension adjusting mechanism provided corresponding to the number of bobbins 21 that can be stored. As shown in detail in FIGS. 9 and 12, the 25 is divided into two and divided into two units to form a unit (hereinafter referred to as “units 2A and 2B”). It is configured to be detachably attached to the thread selection mechanism 29 provided on the SB 1 via the bottom plate 24 b of the thread adjustment mechanism 24.
ポビン収納部 22は、 例えば、 上段にやや前方に向けて傾斜して、 左右 に 9個ずつの合計 1 8個のボビン 2〗 を収納するようにしたもので、 ボビ ン収納部 22には、 ボビン 2〗 を挿入、 支持するスピンドル 22aを立設 するとともに、 スピンドル 22 aの周囲に使用するボビン 21に適合した ボビンガイ ド 22 bを配設し、 底面に各ボビン 21の糸 1 1をもつれない ように引き出すためのフェル卜 22 cを敷設する。  The pobin storage section 22 is, for example, inclined slightly upward in the upper row so as to store a total of 18 bobbins 2〗, 9 pieces on the left and right sides. A spindle 22a for inserting and supporting the bobbin 2〗 is erected, and a bobbin guide 22b suitable for the bobbin 21 to be used is arranged around the spindle 22a, and the thread 11 of each bobbin 21 is not entangled on the bottom surface. Lay the felt 22 c to pull out.
スピンドル 22aには、 糸保持体 23を設け、 合計 18本の糸 1 1を糸 保持体 23から間隔をあけて引き出し、 ポビン収納部 22の下部に一体に 取リ付けた糸調節機構 2 の糸張力調節機構 25に送り込むようにする。 糸保持体 23は、 スピンドル 22 aの上端部に配設したガイ ドブレー卜 23pと、 スピンドル 22 aの上端開口部に配設したセラミック製のガイ ド管 23qと、 スピンドル 22 aの中空管路 23 rと、 中空管路 23「に 連通するパイプ部材 23 sとから構成し、 各ボビン 21の糸 1 1をスピン ドル 22 aの中空管路 23 r及びパイプ部材 23 sを介して、 糸張力調節 機構 25に送り込むようにする。 A thread holder 23 is provided on the spindle 22a, and a total of 18 threads 11 are pulled out from the thread holder 23 at intervals, and the thread of the thread adjustment mechanism 2 is integrally attached to the lower part of the pobin storage section 22. Feed it into the tension adjustment mechanism 25. The thread holder 23 includes a guide plate 23p disposed at the upper end of the spindle 22a, a ceramic guide tube 23q disposed at the upper end opening of the spindle 22a, and a hollow conduit of the spindle 22a. 23 r and a pipe member 23 s communicating with the hollow conduit 23, and spin the yarn 11 of each bobbin 21. The yarn is sent to the thread tension adjusting mechanism 25 via the hollow conduit 23r and the pipe member 23s of the dollar 22a.
この場合において、 パイプ部材 23 sの先端の突出量を、 隣接するパイ プ部材 23 s間で変えることにより、 パイプ部材 23 sから導出された糸 1 1 を保持し易くすることができる。  In this case, by changing the amount of protrusion of the tip of the pipe member 23s between the adjacent pipe members 23s, it is possible to easily hold the yarn 11 derived from the pipe member 23s.
なお、 糸 1 1をスピンドル 22aの中空管路 23 r及びパイプ部材 23 sに挿通する作業は、 ガイ ド管 23 qの上端開口から糸〗 1 と共に高圧空 気流を吹き込むことによリ容易に行うことができる。  The operation of inserting the yarn 11 into the hollow conduit 23r and the pipe member 23s of the spindle 22a can be easily performed by blowing high-pressure airflow together with the yarn 1 from the upper end opening of the guide tube 23q. It can be carried out.
糸張力調節機構 25は、 糸調節機構 24の半円筒形状の本体 24 aの外 周面に設けられた、 各ボビン 2〗 からの糸 1 1毎に 3個の糸張力調節部材 25 a, 25 b, 25cを有する。  The thread tension adjusting mechanism 25 includes three thread tension adjusting members 25 a, 25 for each thread 11 from each bobbin 2 ら れ provided on the outer peripheral surface of the semi-cylindrical body 24 a of the thread adjusting mechanism 24. b, 25c.
このうち 1つの糸張力調節部材 25 cには、 糸〗 1の張力を測定する張 力センサ一 25dを配設し、 糸 1 1の糸切れ等を検知できるようにする。  One of the yarn tension adjusting members 25c is provided with a tension sensor 25d for measuring the tension of the yarn # 1, so that the yarn 11 can be detected as being broken.
この張力センサー 25 dからの信号は、 電気信号として、 糸調節機構 2 4に配設した電気接点 (図示省略) からミシンへッ ド 1に配設した電気接 点を備えた電気回路 (図示省略) を介して刺辗用ミシンの制御部に送られ、 刺繍用ミシンの駆動を制御するとともに、 ミシンへッ ド 1等に配設した上 糸及び下糸の状態を表示する表示ランプ (図示省略) を点灯することによ リ作業者に糸 1 1の糸切れを知らせるようにする。  The signal from the tension sensor 25d is converted into an electric signal from an electric contact provided on the thread adjusting mechanism 24 (not shown) to an electric circuit provided with an electric contact provided on the sewing machine head 1 (not shown). ) To the controller of the embroidery sewing machine to control the drive of the embroidery sewing machine and to display the status of the upper and lower threads arranged on the sewing machine head 1 etc. (not shown) ) Turn on to inform the worker of thread 11 breakage.
なお、 表示ランプのほか、 剌總用ミシンの適宜位置には、 作業者に刺繍 用ミシンの状態を表示するための液晶表示盤等の表示装置と、 ブザー等の 警報装置を設けることができる。  In addition to the display lamp, a display device such as a liquid crystal display panel for displaying the status of the embroidery sewing machine to the operator and an alarm device such as a buzzer can be provided at an appropriate position of the sewing machine.
また、 糸 1 1を針 1 0に向けて送り出す際に、 糸 1 1に大きな抵抗がか からないようにするために、 糸張力調節部材 25 bによる糸 1 1の保持を 解除する糸張力解除機構 (図示省略。 上記第 1実施例参照) を配設する。 糸調節機構 2 4の半円筒形状の底板 2 4 bの外周面に設けられた糸送出 機構 2 8は、 針 1 0に向けて糸 1 1 を円滑に送り出すためのもので、 糸 1 1 を糸通し装置 7の上方に導く糸送出管 2 8 aと、 高圧空気源 (図示省略) に接続され、 高圧空気流により糸 1 1 を糸通し装置 7に向けて送り出すた めの空気ノズル (図示省略。 上記第 1実施例参照) とを有する。 Also, in order to prevent a large resistance from being applied to the thread 11 when sending the thread 11 to the needle 10, the thread tension is released to release the holding of the thread 11 by the thread tension adjusting member 25 b. A mechanism (not shown; see the first embodiment) is provided. A thread sending mechanism 28 provided on the outer peripheral surface of the semi-cylindrical bottom plate 24 b of the thread adjusting mechanism 24 is for smoothly sending out the thread 11 toward the needle 10. An air nozzle (shown in the drawing) that is connected to a thread delivery pipe 28a that guides the threader 7 above and a high-pressure air source (not shown) to send the yarn 11 toward the threader 7 by a high-pressure air flow (Refer to the first embodiment described above.)
そして、 空気ノズルは、 上記第 1実施例と同様、 糸通し位置、 すなわち、 糸通し装置 7の上方に位置する糸送出管 2 8 aの上部開口の近傍に空気ノ ズルの開口端が位置するように固定し、 さらに、 糸通し装置 7の上方及び 刺繍を行う位置にある糸送出管 2 8 aを除いて傾転させるように構成する ことができる。  The air nozzle is located at the threading position, that is, at the opening end of the air nozzle near the upper opening of the thread delivery pipe 28a located above the threading device 7, as in the first embodiment. The thread delivery tube 28 can be tilted except for the thread delivery tube 28a located above the threading device 7 and at the position where embroidery is performed.
この場合、 少なくとも、 剌繡を行う位置にある糸送出管 2 8 aは、 適宜 の駆動機構 (図示省略) によって操作することにより起立させるようにし、 刺繍が終了すると直ちに傾転させ、 隣接する糸通し装置 7の上方に位置す る糸送出管 2 8 aから垂下された糸 1 1 を糸通し装置 7が正確に挟持でき るようにすることが望ましい。  In this case, at least the thread delivery tube 28a at the position where the stimulus is made is made to stand by operating by an appropriate driving mechanism (not shown), and is tilted immediately after the embroidery is completed, so that the adjacent thread is provided. It is desirable that the threading device 7 can pinch the thread 11 hanging from the thread delivery pipe 28 a located above the threading device 7 accurately.
糸選択機構 2 9は、 所要のボビン 2 1 に対応する糸送出機構 2 8の糸送 出管 2 8 aを所定の針 1 0に糸通しを行う糸通し装置 7の上方に選択的に 位置させるもので、 糸調節機構 2 4をその底板 2 4 bを介して摇動自在に 装着するためにミシンへッ ド 1上に配設される支軸 2 9 aと、 駆動源 (図 示省略) に連結されたリンク 2 9 cにより支軸 2 9 aを摇動軸として摇動 駆動される摇動体 2 9 bと、 糸調節機構 2 4の底板 2 4 bに穿設した透孔 2 4 cに嵌合し、 摇動体 2 9 bと共に糸調節機構 2 4を摇動駆動する揺動 体 2 9 bに突設したピン 2 9 dとからなる。  The thread selection mechanism 29 is selectively positioned above the threading device 7 for threading the thread delivery pipe 28 a of the thread delivery mechanism 28 corresponding to the required bobbin 21 to a predetermined needle 10. A spindle 29 a disposed on the sewing machine head 1 for movably mounting the thread adjusting mechanism 24 via its bottom plate 24 b, and a drive source (not shown) ) The driving body 29 b driven by the support shaft 29 a as a driving axis by a link 29 c connected to the shaft 29, and a through hole 24 formed in the bottom plate 24 b of the thread adjusting mechanism 24. and a pin 29 d protruding from an oscillating body 29 b for manually driving the thread adjusting mechanism 24 together with the oscillating body 29 b.
この場合、 所要のボビン 2 1 に対応する糸送出機構 2 8の糸送出管 2 8 aを所定の針 1 0に糸通しを行う糸通し装置 7の上方に正確に位置させる ために、 駆動源 (図示省略) に連結されたリンク 2 9 eにより支軸 2 9 f を摇動軸として摇動駆動される摇動体 2 9 gの先端に位置決めローラ 2 9 hを配設し、 この位置決めローラ 2 9 hを、 糸調節機構 2 4の底板 2 4 b の周縁に糸送出機構 2 8の糸送出管 2 8 aの角度に合わせて刻設した歯車 2 4 dに嵌合するようにする。 In this case, the thread delivery tube 28 a of the thread delivery mechanism 28 corresponding to the required bobbin 21 is accurately positioned above the threading device 7 for threading the predetermined needle 10. For this purpose, a positioning roller 29 h is disposed at the tip of a driving body 29 g which is driven by a link 29 e connected to a driving source (not shown) with the supporting shaft 29 f as a driving shaft. The positioning roller 29 h is fitted to a gear 24 d engraved on the periphery of the bottom plate 24 b of the thread adjusting mechanism 24 to match the angle of the thread delivery pipe 28 a of the thread delivery mechanism 28. To do.
この場合、 糸選択機構 2 9は刺織用ミシンの制御部によって制御される ようにし、 制御部にボビン収納部 2 2に収納された各ポビン 2 1 の種類 (色) を予め記憶させておくことにより、 多数の色糸の選択を自動的に行 うことができるようにする。  In this case, the thread selection mechanism 29 is controlled by the control unit of the sewing machine for sewing, and the control unit previously stores the type (color) of each pobin 21 stored in the bobbin storage unit 22. In this way, a large number of color yarns can be automatically selected.
なお、 糸調節機構 2 4の半円简形状の本体 2 4 aの外周面の適宜位置に は、 各ポビン 2 1 からの糸 1 1 をもつれないように保持するために、 糸揷 通孔を略等間隔に形成した糸保持体 2 0 a , 2 0 b , 2 0 c , 2 0 dを設 けることが望ましい。  In addition, at an appropriate position on the outer peripheral surface of the semicircular main body 24a of the thread adjusting mechanism 24, a threading hole is provided to hold the thread 11 from each pobin 21 so as not to be entangled. It is desirable to provide the yarn holders 20a, 20b, 20c, 20d formed at substantially equal intervals.
また、 糸調節機構 2 4を構成する、 糸張力調節機構 2 5及び糸送出機構 2 8は、 それぞれボビン収納部 2 2に収納可能なボビン 2 1の個数に対応 して、 すなわち、 本実施例においては 1 8組を、 糸調節機構 2 4の半円筒 形状の本体 2 4 a及び底板 2 4 bの外周面にそれぞれ設けるようにしてい るが、 糸張力解除機構、 糸長さ調節機構及び糸送出機構 2 8の空気ノズル 2 8 b等は、 いずれもミシンへッ ド 1側に 1個配設し、 1 8組のこれら機 構のうち所定の位置にあるものを操作又は所定の位置にあるものと協動す るように、 すなわち、 1 8組のこれら機構で共用するものとする。  Further, the thread tension adjusting mechanism 25 and the thread sending mechanism 28 constituting the thread adjusting mechanism 24 correspond to the number of the bobbins 21 that can be stored in the bobbin storing section 22, respectively. In the above, 18 sets are provided on the outer peripheral surfaces of the semi-cylindrical body 24a and the bottom plate 24b of the yarn adjusting mechanism 24, respectively.The yarn tension releasing mechanism, the yarn length adjusting mechanism and the yarn One of the air nozzles 28 b and the like of the delivery mechanism 28 is disposed on the sewing machine 1 side, and one of the eighteen mechanisms at a predetermined position is operated or moved to a predetermined position. It should be shared with some, that is, shared by 18 sets of these mechanisms.
また、 ボビン収納部 2 2とこれと一体化して配設する糸調節機構 2 4を 左右に二等分して構成したユニッ ト 2 A, 2 Bは、 望ましくは、 ミシンへ ッ ド 1 の頭数の複数倍個用意しておく。 これにより、 色糸の交換を行う場 合には、 ュニッ ト 2 A又はュニッ ト 2 Bごと交換して色糸の交換に要する 時間を短縮することができる。 例えば、 本実施例のュニッ ト 2 A, 2 Bを ミシンへッ ドの頭数の 2倍個用意しておけば、 最大 3 6色の色糸の交換を 短時間で行うことができる。 この場合、 刺繍用ミシンの制御部にポビン収 納部 2 2に収納された各ポビン 2 1の種類 (色) を予め記憶させておくこ とにより、 ュニッ トを交換するだけで、 多数の色糸の交換を自動的に行う ことができる。 Units 2A and 2B, which are formed by equally dividing the bobbin storage section 22 and the thread adjusting mechanism 24 provided integrally with the bobbin storage section into right and left sides, preferably have the number of heads of the sewing machine 1. Prepare multiple multiples of. As a result, when replacing the color thread, it is necessary to replace the unit 2A or unit 2B and replace the color thread. Time can be reduced. For example, if the units 2A and 2B of the present embodiment are prepared twice as many as the number of heads of the sewing machine, it is possible to exchange color threads of up to 36 colors in a short time. In this case, the type (color) of each of the pobins 21 stored in the pobin storing section 22 is stored in advance in the control section of the embroidery sewing machine. The thread can be changed automatically.
また、 本実施例においては、 ボビン収納部 2 2とこれと一体化して配設 する糸調節機構 2 4をュニッ 卜化して構成し、 これをミシンへッ ド 1 に着 脱自在に取り付けるようにしているが、 これらをミシンへッ ド 1 に一体的 に固定して取り付けることもできる。  Further, in this embodiment, the bobbin housing section 22 and the thread adjusting mechanism 24 provided integrally with the bobbin housing section 22 are formed as a unit, and this is detachably attached to the sewing machine head 1. However, these can be fixedly attached to the sewing machine head 1 as well.
また、 本実施例においては、 所要のボビン 2 1 に対応する糸送出機構 2 8の糸送出管 2 8 aを所定の針 1 0に糸通しを行う糸通し装置 7の上方に 選択的に位置させるため、 糸選択機構 2 9によリ糸調節機構 2 4を支軸 2 9 aを摇動軸として摇動駆動するようにしているが、 糸選択機構として、 水平面内で摺動する機構を採用することもできる。  In the present embodiment, the thread delivery tube 28 a of the thread delivery mechanism 28 corresponding to the required bobbin 21 is selectively positioned above the threading device 7 for threading a predetermined needle 10. For this purpose, the yarn selecting mechanism 29 is used to drive the yarn adjusting mechanism 24 with the support shaft 29 a as a driving axis, but as the yarn selecting mechanism, a mechanism that slides in a horizontal plane is used. Can also be adopted.
ミシンへッ ド 1 の糸供給装置 2の下部に、 第 1 4図〜第 2 4図に示すよ うに、 糸張設機構 3及び糸通し機構 6からなる糸通し装置 7を配設する。 糸張設機構 3は、 第〗 4図〜第 1 7図に示すように、 糸供給装置 2の糸 送出管 2 8 aから所定長さ垂下された糸 1 1 の端部を針 1 0の近傍位置ま で導くもので、 糸挟持部材 3 1 と、 糸挟持部材 3 1 を先端に配設したレバ 一 3 2と、 レバー 3 2の基端を揺動自在に支持する摺動片 3 3と、 糸張設 機構本体 3 0に略上下方向に配設した摺動片 3 3のガイ ド管 3 4と、 摺動 片 3 3をガイ ド管 3 4に沿って昇降させるベルト 3 5と、 レバー 3 2の基 端に固定したピニオン 3 2 aと嚙合してレバ一 3 2の摇動角度を規制する 摺動片 3 3の降下位置近傍に配設したラック 3 6と、 レバー 3 2の中間位 置に配設したローラ 3 2 bを嵌挿してレバ一 3 2の摇動角度を規制する糸 張設機構本体 3 0に略上下方向に形成したガイ ド溝 3 7と、 ベルト 3 5を 駆動する駆動機構 3 8とから構成する。 As shown in FIGS. 14 to 24, a threading device 7 including a thread tensioning mechanism 3 and a threading mechanism 6 is provided below the thread supply device 2 of the sewing machine head 1. As shown in FIGS. 4 to 17, the thread tensioning mechanism 3 is configured to attach the end of the thread 11 suspended from the thread delivery pipe 28 a of the thread supply device 2 by a predetermined length to the needle 10. The thread guide member 31 guides the guide member to a nearby position, a lever 132 provided with the thread clamp member 31 at the distal end, and a sliding piece 33 swingably supporting the base end of the lever 32. And a guide pipe 34 of a sliding piece 33 disposed substantially vertically in the thread tensioning mechanism body 30, and a belt 35 for raising and lowering the sliding piece 33 along the guide pipe 34. The pinion 3 2a fixed to the base end of the lever 3 2 restricts the drive angle of the lever 32 in combination with the pinion 3 2a. Middle rank of Drives the guide grooves 37 formed in the thread tensioning mechanism main body 30 in a substantially vertical direction and the belt 35 by inserting the rollers 3 2 b disposed in the And a driving mechanism 38.
このように、 糸張設機構 3を、 摇動するレバー 3 2、 昇降する摺動片 3 3等で構成することにより、 糸張設機構 3をコンパク 卜化することができ、 特に、 糸挟持部材 3 1 のミシンヘッ ド 1 の前方への突出量を小さくするこ とができる。  In this way, by composing the thread tension mechanism 3 with the moving lever 32 and the sliding piece 33 moving up and down, the thread tension mechanism 3 can be made compact, and in particular, the thread clamping The amount by which the member 31 protrudes forward from the sewing head 1 can be reduced.
この糸張設機構 3は、 ベルト 3 5を駆動することにより、 糸挟持部材 3 1 を略中間部の待機位置から、 糸送出管 2 8 aから垂下された糸 1 1 の端 部を挟持する最上昇位置まで移動させるときに、 糸挟持部材 3 1が糸 1 1 の端部を自動的に挟持することができるように、 ミシンへッ ド 1 に突設し たブラケッ 卜 1 bに摇動可能にシュ一部材 3 1 eを配設し、 このシュ一部 材 3〗 eに糸挟持部材 3 1の可動挟持片 3 1 aに突設した操作片 3 1 dの 先端に配設したローラ 3 1 f が当接して、 可動挟持片 3 1 aをばね部材 3 1 cの付勢力に抗して開放することにより、 可動挟持片 3 1 aと固定挟持 片 3 1 bとの間に糸送出管 2 8 aから垂下された糸〗 〗 の端部を揷通した 後、 シユー部材 3 1 eを駆動機構 (図示省略) によリ摇動させ、 シュ一部 材 3 1 eと操作片 3 1 dとの当接を解除して、 可動挟持片 3 1 aを復帰さ せ、 可動挟持片 3 1 aと固定挟持片 3〗 bとの間に挿通されている糸 1 1 を挟持するように構成する。  The thread tensioning mechanism 3 drives the belt 35 to clamp the thread holding member 31 from the standby position substantially at the intermediate portion to the end of the thread 11 hanging from the thread delivery pipe 28a. When moved to the highest position, the bracket 1 b is automatically moved to the bracket 1 b protruding from the sewing machine head 1 so that the thread clamping member 31 can automatically clamp the end of the thread 11. A roller provided at the tip of an operation piece 3 1 d protruding from the movable holding piece 3 1 a of the thread holding member 3 1 on this part 3 e 3 1 f abuts, and the movable holding piece 3 1 a is opened against the urging force of the spring member 3 1 c to release the thread between the movable holding piece 3 1 a and the fixed holding piece 3 1 b. After passing through the end of the thread thread hanging from the delivery pipe 28a, the shoe member 31e is driven by a drive mechanism (not shown), and a part of the shoe 31e and the operating piece 3 1d The contact is released, the movable holding piece 31a is returned, and the thread 11 inserted between the movable holding piece 31a and the fixed holding piece 3b is held.
そして、 この状態でベルト 3 5を駆動することにより、 糸挟持部材 3 1 を、 最上昇位置から最降下位置まで移動させ、 針〗 0の近傍位置まで導か れた糸 1 1 を針 1 0の針孔 1 0 aに導き、 糸通しを行った後、 糸挟持部材 3 1が挟持していた糸 1 1 の端部を解放することができるように、 糸張設 機構本体 3 0の下部に摇動可能に操作部材 3 1 gを配設し、 この操作部材 3 1 gにより、 糸挟持部材 3 1 の可動挟持片 3 1 aに突設した操作片 3 1 dの先端に配設したローラ 3 1 f を押圧操作して、 可動挟持片 3 1 aをば ね部材 3 〗 cの付勢力に杭して開放するように構成する。 Then, by driving the belt 35 in this state, the thread holding member 31 is moved from the highest position to the lowest position, and the thread 11 guided to the position near the needle 0 is moved to the position of the needle 10. After leading to the needle hole 10a and performing threading, the thread clamping member 31 is placed at the bottom of the thread tensioning mechanism main body 30 so that the end of the thread 11 that has been clamped can be released. Operate the operation member 3 1 g 3 1 g, pressing the roller 3 1 f arranged at the tip of the operation piece 3 1 d protruding from the movable holding piece 3 1 a of the thread holding member 3 1 to push the movable holding piece 3 1 a It is constructed so that it is piled up and opened by the urging force of the spring member 3〗 c.
また、 駆動機構 3 8は、 モータ (図示省略) によリベルト 3 5の回転軸 3 8 aを正、 逆両方向に選択的に駆動できるように構成する。  In addition, the drive mechanism 38 is configured to selectively drive the rotation shaft 38a of the reverse belt 35 in both forward and reverse directions by a motor (not shown).
また、 糸張設機構 3には、 摺動片 3 3の昇降経路の適宜位置、 例えば、 糸挟持部材 3 1 の中間位置近傍の待機位置、 糸挟持部材 3 1が糸送出管 2 8 aから垂下された糸〗 1 の端部を挟持する最上昇位置及び糸通しを行う 最降下位置に、 リミッ トスィ ッチ (図示省略) を配設し、 摺動片 3 3の位 置を検出できるようにする。 なお、 リミッ トスィ ッチの E設位置は、 適宜 調整することができるようにする。  In addition, the thread tensioning mechanism 3 has an appropriate position in the elevating path of the sliding piece 3 3, for example, a standby position near the intermediate position of the thread clamping member 31, and the thread clamping member 31 moves from the thread delivery pipe 28 a to A limit switch (not shown) is provided at the highest position for holding the end of the hanging thread No. 1 and the lowest position for threading so that the position of the sliding piece 33 can be detected. To The E position of the limit switch shall be able to be adjusted appropriately.
糸張設機構 3により糸供給装置 2の糸送出管 2 8 aと針〗 0の近傍位置 との間に張設された糸〗 1 は、 第 1 4図〜第 1 7図に示すように、 天秤機 構 4の天秤 4 1及び副天秤 4 2に掛けられる。  The yarn〗 1 stretched between the yarn delivery pipe 28 a of the yarn supply device 2 and the position near the needle〗 0 by the yarn tensioning mechanism 3 as shown in FIGS. 14 to 17 The balance is mounted on the balance 41 and the sub-balance 42 of the balance mechanism 4.
なお、 本実施例においては、 天秤機構 4及びこの天秤機構 4に対応する 針 1 0を 3組配設し、 これらの針 1 0を設けたフレーム 1 cを水平面内で 摇動するように構成しているが、 フレーム 1 cに設ける針 1 0の組数を増 減したり、 フレーム 1 cを水平面内で摺動するように構成することもでき る。  In this embodiment, three sets of the balance mechanism 4 and the needles 10 corresponding to the balance mechanism 4 are provided, and the frame 1c provided with the needles 10 is moved in a horizontal plane. However, the number of sets of needles 10 provided on the frame 1c may be increased or decreased, or the frame 1c may be configured to slide in a horizontal plane.
天秤 4 1 には、 先端に糸掛け孔 4 1 aを、 基端に天秤 4 1の駆動ピン 4 1 cを嵌挿する切欠部 4 1 bを形成する。  The balance 41 has a threading hole 41a at the distal end and a cutout 41b into which the drive pin 41c of the balance 41 is inserted at the base end.
副天秤 4 2は、 リング形状の糸掛け孔 4 2 aと、 糸掛け孔 4 2 aを先端 に E設したレバー 4 2 bと、 レバー 4 2 bを摺動自在に支持する摺動片 4 2 cと、 糸張設機構本体 3 0に略上下方向に配設した摺動片 4 2 cのガイ ド管 4 2 dと、 摺動片 4 2 cを糸張設機構 3の糸挟持部材 3 1 に吸着して 糸挟持部材 3 1 の昇降に合わせてガイ ド管 3 4に沿って昇降させるための 磁石片 4 2 eと、 レバー 4 2 bの他端に配設したローラ 4 2 f が当接して 糸掛け孔 4 2 aの位置を規制するシュ一部材 4 2 gと、 レバー 4 2 bの他 端に K設したローラ 4 2 f がシユー部材 4 2 gに当接するように付勢する ばね部材 4 2 hとから構成する。 The sub-balance 42 has a ring-shaped thread hooking hole 42 a, a lever 42 b having a thread hooking hole 42 a at its tip, and a sliding piece 4 slidably supporting the lever 42 b. 2 c, guide tube 4 2 d of sliding piece 4 2 c arranged substantially vertically in thread tensioning mechanism main body 30, and sliding piece 4 2 c with thread holding member of thread tensioning mechanism 3 3 Adsorb to 1 The magnet piece 4 2 e for elevating and lowering along the guide tube 34 in accordance with the raising and lowering of the thread holding member 3 1 and the roller 4 2 f provided at the other end of the lever 4 2 b come into contact with the thread hook. A spring member 4 2 urges a shoe member 4 2 g for regulating the position of the hole 42 a and a roller 42 f provided at the other end of the lever 42 b so that the roller 42 f contacts the shoe member 42 g. h.
この天秤機構 4の副天抨 4 2は、 糸張設機構 3のベルト 3 5を駆動する ことにより、 糸挟持部材 3 1 を略中間部の待機位置から、 糸送出管 2 8 a から垂下された糸 1 1 の端部を挟持する最上昇位置まで移動させると、 糸 挟持部材 3 1 に吸着して摺動片 4 2 cも最上昇位置まで移動し、 糸掛け孔 4 2 aに糸送出管 2 8 aから垂下された糸 1 1 の端部が挿通される。  The auxiliary balance 42 of the balance mechanism 4 drives the belt 35 of the thread tensioning mechanism 3 so that the thread clamping member 31 is suspended from the standby position at the substantially middle portion from the thread delivery pipe 28a. When the end of the thread 11 is moved to the highest position to clamp the end, the sliding piece 4 2c is attracted to the thread clamping member 31 and also moves to the highest position, and the thread is sent out to the threading hole 42a. The end of the thread 11 hanging from the tube 28a is inserted.
そして、 糸掛け孔 4 2 aの直下に位置する糸挟持部材 3 1 により糸 1 1 を挟持し、 この状態で糸張設機構 3のベルト 3 5を駆動すると、 糸挟持部 材 3 1 は、 最上昇位置から最降下位置まで移動する。 このとき、 糸挟持部 材 3 1 に吸着して摺動片 4 2 cも降下するが、 摺動片 4 2 cは、 略中間位 露に設けたス卜ツバ部材 4 2 i によりそれ以上の降下が阻止されることか ら、 糸挟持部材 3 1 との吸着が解除され、 この位置、 すなわち、 下死点の 待機位置に停止する。 また、 摺動片 4 2 cが降下するのに合わせて、 糸 1 1が挿通された糸掛け孔 4 2 aを先端に配設したレバ一 4 2 bは、 その他 端に配設したローラ 4 2 f がシュ一部材 4 2 gに当接することにより、 ば ね部材 4 2 hの付勢力に杭してシュ一部材 4 2 gの形状に合わせて水平方 向に摺動し、 これにより、 摺動片 4 2 cが降下する間に、 糸〗 〗 を天秤 4 1の先端に形成した糸掛け孔 4 〗 aに掛け通すようにする。  Then, when the yarn 11 is held by the yarn holding member 3 1 located immediately below the yarn hooking hole 4 2 a and the belt 35 of the yarn tensioning mechanism 3 is driven in this state, the yarn holding member 3 1 Move from the highest position to the lowest position. At this time, the sliding piece 42c is also adsorbed by the thread holding member 31 and also descends, but the sliding piece 42c is further increased by the storage member 42i provided at approximately the middle position. Since the descent is prevented, the suction with the thread holding member 31 is released, and the robot stops at this position, that is, the standby position at the bottom dead center. Also, as the sliding piece 4 2c descends, the lever 4 2b provided with the thread hooking hole 4 2a in which the thread 11 is inserted at the tip is replaced with the roller 4 provided at the other end. When 2f abuts on the shoe member 42g, it stakes in the biasing force of the spring member 42h and slides in the horizontal direction according to the shape of the shoe member 42g. While the sliding piece 4 2 c descends, the thread〗 掛 け is passed through the thread hook hole 4〗 a formed at the tip of the balance 41.
なお、 天枰 4 1 の糸掛け孔 4 1 aには、 掛け通された糸 1 1が、 抜け出 ないようにするために、 トラップ等の抜け止めを形成することが望ましい, これにより、 糸 1 1 は、 天秤 4 〗の糸掛け孔 4 1 a及び副天秤 4 2の糸 褂け孔 4 2 aに掛けられ、 所要のジグザグ状に保持された状態で刺繡が行 われる。 In addition, it is desirable that a thread such as a trap be formed in the thread hooking hole 4 1a of the ceiling 41 in order to prevent the hooked thread 11 from slipping out. 1 is the thread of the balance 4 mm thread hole 4 1a and the thread of the sub-balance 4 2 It is hung on the cauldron 42a and stabbed while being held in the required zigzag shape.
なお、 刺繍時、 天秤 4 1 は、 従来の刺攝用ミシンと同様の駆動機構によ リ往復駆動され、 一方、 副天秤 4 2は、 下死点の待機位置に保持される。 糸通し機構 6は、 第 1 8図〜第 2 1図に示すように、 糸張設機構 3によ リ針 1 0の近傍位置まで導かれた糸 1 1 を針 1 0の針孔 1 O aに導き、 糸 通しするもので、 糸引き抜き機構 6 1 と、 糸引き抜き機構 6 1 の駆動機構 6 2と、 糸張設機構 3の糸挟持部材 3 1 により挟持した糸 1 1 を糸引き抜 き機構 6 〗 に向けて送り込むための糸挟持部材 3 1 に S2設した空気ノズル 6 3と、 糸引き抜き機構 6 1 に挿通された糸 1 1 を糸引き抜き機構 6 1 に より確実に保持するための糸引き抜き機構 6 1 に配設した糸押下機構 6 4 とから構成する。  At the time of embroidery, the balance 41 is reciprocated by the same drive mechanism as the conventional embroidery sewing machine, while the sub balance 42 is held at the standby position at the bottom dead center. As shown in FIGS. 18 to 21, the threading mechanism 6 pulls the thread 11 guided to a position near the needle 10 by the thread tensioning mechanism 3 and the needle hole 10 O of the needle 10. The thread 11 is held by the thread pull-out mechanism 61, the drive mechanism 62 of the thread pull-out mechanism 61, and the thread pinching member 31 of the thread tensioning mechanism 3. In order to more securely hold the air nozzle 63 provided on the thread holding member 3 1 for feeding the yarn toward the pulling mechanism 6 S and the thread 11 inserted through the thread pulling mechanism 61, by the thread pulling mechanism 61. And a thread pushing mechanism 64 disposed on the thread pulling mechanism 61 of FIG.
糸引き抜き機構 6〗 は、 第 1 9図〜第 2 1図に詳示するように、 先端を 鉤形に形成したフック部材 6 1 aと、 フック部材 6 1 aの両側にスぺーサ 一 6 1 f , 6 1 f を介して配設した案内部材 6 1 b , 6 1 bと、 フック部 材 6 1 a、 案内部材 6 1 b , 6 1 b及びスぺーサー 6 1 f , 6 1 f からな る先端部材を保持する保持部材 6〗 gとからなる。  As shown in detail in FIGS. 19 to 21, the thread pulling mechanism 61 includes a hook member 61 a having a hook-shaped tip and spacers 16 on both sides of the hook member 61 a. Guide members 61b, 61b arranged via 1f, 61f, hook members 61a, guide members 61b, 61b, and spacers 61f, 61f. And a holding member for holding the tip member made of 6 g.
案内部材 6 1 b, 6 1 bは、 針 1 0に当接したとき、 フック部材 6 1 a を針〗 0の中心、 すなわち針孔 1 0 aの位置に誘導するように、 互いに外 向きに湾曲させた先端 6 1 e , 6 1 eの基部においてフック部材 6 1 aの 側面に当接する形状に形成した板ばねで構成するとともに、 その略中心に 糸揷通孔 6 1 cが形成され、 さらに、 糸揷通孔 6〗 cから先端に向けて糸 逃げ溝 6 1 dが形成されている。  The guide members 61b and 61b are directed outward from each other so as to guide the hook member 61a to the center of the needle〗 0, that is, the position of the needle hole 10a, when the guide member 61b contacts the needle 10. At the base of the curved tips 61e, 61e, it is constituted by a leaf spring formed in a shape to abut the side surface of the hook member 61a, and a thread hole 61c is formed substantially at the center thereof. Further, a yarn escape groove 61 d is formed from the yarn through hole 6〗 c toward the tip.
糸引き抜き機構 6 1 の駆動機構 6 2は、 第〗 8図に詳示するように、 糸 引き抜き機構 6 1 の保持部材 6 1 gを支持するミシンへッ ド 1側に立設し た支持体〗 dに配設したフレーム 62 aと、 保持部材 61 gを駆動する駆 動用レバー 62 bと、 駆動用レバー 62 bの駆動機構 62 cとからなる。 糸押下機構 64は、 保持部材 61 gに配設した糸引き抜き機構 61 に軸 64 cを介して摇動自在に配設した糸押下片 64aと、 糸挿通孔 61 cを 遮蔽する方向、 すなわち、 案内部材 61 bの側面に沿って糸 1 1を押し下 げる方向に糸押下片 64 aを付勢する捻リぱね 64 bと、 捻りばね 64 b の付勢力に杭して糸押下片 64 aを押し上げて糸挿通孔 61 cを開放状態 に保持するために糸押下片 64 a及び駆動機構 62のフレーム 62 aにそ れぞれ形成した糸押下片 64 aの操作片 64 d, 64 eとからなる。 As shown in FIG. 8 in detail, the drive mechanism 62 of the thread pulling mechanism 61 is set up on the side of the sewing machine head 1 that supports the holding member 61g of the thread pulling mechanism 61. A frame 62a disposed on the support member d, a driving lever 62b for driving the holding member 61g, and a driving mechanism 62c for the driving lever 62b. The thread pushing mechanism 64 has a thread pushing piece 64a movably arranged via a shaft 64c on a thread pulling mechanism 61 arranged on the holding member 61g, and a direction for shielding the thread insertion hole 61c, that is, A thread spring 64b for urging the thread pressing piece 64a in the direction of pushing down the thread 11 along the side surface of the guide member 61b, and a thread pushing piece 64 piled on the urging force of the torsion spring 64b. In order to push up a to hold the thread insertion hole 61c open, the thread pressing piece 64a and the operating pieces 64d, 64e of the thread pressing piece 64a formed on the frame 62a of the drive mechanism 62, respectively. Consists of
そして、 この糸通し機構 6は、 第 1 8図 (a) に示すように、 駆動機構 62 cにより駆動用レバー 62bの先端を前方に押すことにより、 駆動用 レバー 62 bの基端側に穿設した長孔 62 dに嵌挿した保持部材 6〗 gに 固定したピン 61 hを押し下げ、 ピン 61 hをフレーム 62 aに形成した 溝 62 eに沿って降下させることにより、 ピン 61 hを固定した保持部材 61 gを介して引き抜き機構 61 を降下させる。  Then, as shown in FIG. 18 (a), the threading mechanism 6 pushes the distal end of the driving lever 62b forward by the driving mechanism 62c, thereby piercing the base end of the driving lever 62b. Hold down the pin 61h fixed to the holding member 6g inserted into the elongated hole 62d, and fix the pin 61h by lowering the pin 61h along the groove 62e formed in the frame 62a. The pulling-out mechanism 61 is lowered via the holding member 61 g.
この状態で、 駆動機構 62 cにより駆動用レバー 62 bの先端をさらに 前方に押すことにより、 駆動用レバー 62 bの枢軸 62 gをフレーム 62 aに形成した溝 62 eに沿って前進させ、 駆動用レバー 62 bの基端側に 穿設した長孔 62 dに嵌挿した保持部材 61 gに固定したピン 61 hをフ レーム 62 aに形成した溝 62 hに沿って前進させることにより、 ピン 6 1 hを固定した保持部材 61 gを介して引き抜き機構 61 を前進させる。 このように、 この駆動機構 62は、 駆動用レバー 62bを駆動機構 62 cによリ駆動操作することにより、 糸引き抜き機構 61を降下、 前進させ. 案内部材 61 bにより案内しながらフック部材 61 aの先端を針孔 1 Oa に挿通するようにする。 ところで、 糸引き抜き機構 6 1 を降下、 前進させると、 糸押下片 6 4 a 及び駆動機構 6 2のフレーム 6 2 aにそれぞれ形成した糸押下片 6 4 aの 操作片 6 4 d, 6 4 e同士が当接し、 捻りばね 6 4 bの付勢力に杭して糸 押下片 6 4 aを押し上げて糸挿通孔 6 1 cを開放状態に保持することがで さる。 In this state, the tip of the drive lever 62b is further pushed forward by the drive mechanism 62c, whereby the pivot 62g of the drive lever 62b is advanced along the groove 62e formed in the frame 62a, and the drive is performed. By moving the pin 61h fixed to the holding member 61g inserted in the long hole 62d formed in the base end side of the lever 62b forwardly along the groove 62h formed in the frame 62a, the pin 6 Advance the pull-out mechanism 61 via the holding member 61 g to which 1 h is fixed. Thus, the drive mechanism 62 drives the drive lever 62b by the drive mechanism 62c to lower and advance the thread pull-out mechanism 61. The hook member 61a is guided by the guide member 61b. Insert the tip of the needle into the needle hole 1 Oa. By the way, when the yarn pulling-out mechanism 61 is lowered and advanced, the operation pieces 6 4 d and 6 4 e of the thread pressing pieces 6 4 a and the thread pressing pieces 6 4 a formed on the frame 6 2 a of the driving mechanism 62 are respectively formed. The threads come into contact with each other, the pile is pressed by the biasing force of the torsion spring 64b, and the thread pushing piece 64a is pushed up to hold the thread insertion hole 61c open.
この状態で、 糸張設機構 3の糸挟持部材 3 1 により挟持されている糸 1 1 を、 糸挟持部材 3 1 に配設した空気ノズル 6 3から高圧空気を糸引き抜 き機構 6 〗 に向けて送り込むことにより、 案内部材 6 1 bの糸揷通孔 6 1 cに挿通するとともに、 糸挟持部材 3〗が挟持していた糸〗 1 の端部を解 放する。  In this state, the thread 11 held by the thread holding member 3 1 of the thread tensioning mechanism 3 is passed through the air nozzle 6 3 arranged on the thread holding member 3 1 to the thread pulling mechanism 6. By feeding the thread toward the thread, the thread is inserted into the thread hole 61c of the guide member 61b and the end of the thread 1 held by the thread clamping member 3 is released.
その後、 駆動用レバー 6 2 bを駆動機構 6 2 cにより駆動操作すること により、 糸引き抜き機構 6 1 を後退させ、 糸押下片 6 4 a及び駆動機構 6 2のフレーム 6 2 aにそれぞれ形成した糸押下片 6 4 aの操作片 6 4 d , 6 4 e同士の当接を解除して、 糸押下片 6 4 aを糸挿通孔 6 〗 cを遮蔽す る方向に摇動させ、 糸揷通孔 6 1 cに挿通した糸 1 〗 の両端を案内部材 6 1 bの側面に沿って押し下げることにより、 糸挿通孔 6 1 cに挿通した糸 1 1 を、 糸引き抜き機構 6 1のフック部材 6〗 aに正確に引掛けながら、 駆動機構 6 2の駆動用レバー 6 2 bの駆動操作を継続する。 これにより、 糸引き抜き機構 6 1 を後退させ、 先端を鉤形に形成したフック部材 6 1 a に糸 1 1 を引掛けるようにしながら、 フック部材 6 1 aを針孔 1 O aから 引き抜くことによリ糸通しを行う。  After that, the drive lever 62b was driven by the drive mechanism 62c so that the thread pulling mechanism 61 was retracted to form the thread pressing piece 64a and the frame 62a of the drive mechanism 62 respectively. Release the contact between the operation pieces 6 4 d and 6 4 e of the thread pressing piece 6 4 a and move the thread pressing piece 6 4 a in the direction of blocking the thread insertion hole 6 c so that the thread By pushing down both ends of the thread 1 挿 inserted into the through hole 6 1 c along the side surface of the guide member 6 1 b, the thread 11 inserted through the thread insertion hole 6 1 c can be hooked by the thread pull-out mechanism 6 1. 6〗 Continue driving the drive lever 62b of the drive mechanism 62 while hooking it accurately on a. As a result, the thread pulling mechanism 61 is retracted, and the hook 11a is pulled out from the needle hole 1Oa while the thread 11 is hooked on the hook member 6a having a hook-shaped tip. Perform threading.
ところで、 本実施例の刺纏用ミシンにおいては、 糸通しを行った後、 第 1 4図〜第 1 5図に示すように、 糸供給装置 2の糸選択機構 2 9を駆動す ることによリ、 糸 1 1が掛け渡された状態で糸送出管 2 8 aを〗段階側方 (右側) に移動して、 剌繡を行うようにする。 そして、 糸 1 1が掛け渡された経路には、 上部糸クランプ機構 51 、 糸 切断機構 52及び切断糸回収機構 53からなる補助機構 5を配設する。 上部糸クランプ機構 51は、 糸 1 1を切断、 回収するときに、 ボビン 2 1から新たな糸 1 1が繰り出されることを防止するために一時的に糸 1 1 をクランプするためのもので、 第 1 4図に示すように、 ミシンヘッ ド 1側 に固定される固定挟持片 51 aと、 固定挟持片 51 aとの間で糸 1 1 をク ランプする可動挟持片 51 bと、 可動挟持片 51 bの駆動機構 51 cとか ら構成されている。 By the way, in the sewing machine according to the present embodiment, after performing the threading, the thread selection mechanism 29 of the thread supply device 2 is driven as shown in FIGS. 14 to 15. In a state where the thread 11 is stretched, the thread delivery pipe 28a is moved to the left side (right side) to perform stimulation. An auxiliary mechanism 5 including an upper thread clamp mechanism 51, a thread cutting mechanism 52, and a cut thread recovery mechanism 53 is disposed on the path around which the thread 11 is looped. The upper thread clamp mechanism 51 is for temporarily clamping the thread 11 to prevent the new thread 11 from being unreeled from the bobbin 21 when cutting and collecting the thread 11. As shown in FIG. 14, a fixed holding piece 51a fixed to the sewing machine head 1 side, a movable holding piece 51b for clamping the thread 11 between the fixed holding piece 51a, and a movable holding piece It is composed of a driving mechanism 51c of 51b.
糸切断機構 52は、 糸 1 1 を交換するとき等に糸〗 〗 を切断するための もので、 第 22図に示すように、 ミシンヘッ ド 1側に固定される固定刃 5 2aと、 枢軸 52bを中心に摇動する可動刃 52cと、 可動刃 52 cの駆 動機構 52 dとから構成されている。  The thread cutting mechanism 52 is for cutting the thread〗 when exchanging the thread 11 or the like. As shown in FIG. 22, the thread cutting mechanism 52 includes a fixed blade 52a fixed to the sewing machine 1 side and a pivot 52b. And a driving mechanism 52d for the movable blade 52c.
切断糸回収機構 53は、 糸 1 〗 を交換するとき等に糸切断機構 52によ リ切断された糸 1 1を回収するためのもので、 第 23図に示すように、 先 端に糸 1 1 を引掛けるフック 53 bを形成した操作杆 53 cと、 操作杆 5 3 cの駆動機構 53 dと、 操作杆 53 cが摺動可能に挿通されるとともに、 切断された糸 1 1を引き込み回収する吸引管 53 eと、 吸引管 53eに吸 引力を生じさせるための高圧空気の導入管 53 f , 53gと、 回収機構本 体 53aに着脱可能に配設した、 回収された糸 1 1 を貯留する網体で形成 された回収容器 53 hとから構成されている。  The cut thread collecting mechanism 53 is for collecting the thread 11 that has been cut by the thread cutting mechanism 52 when, for example, replacing the thread 1 、, and as shown in FIG. The operating rod 53c formed with the hook 53b for hooking 1 and the driving mechanism 53d of the operating rod 53c and the operating rod 53c are slidably inserted, and the cut thread 11 1 is pulled in. The suction pipe 53e to be collected, the high pressure air introduction pipes 53f and 53g for generating a suction force in the suction pipe 53e, and the collected thread 11 detachably attached to the collection mechanism body 53a are separated. It consists of a collection container 53 h formed of a net to store.
また、 ミシンへッ ド 1には、 第 1 4図に示すように、 カバー体 8を設け る。  Further, the sewing machine head 1 is provided with a cover body 8 as shown in FIG.
カバー体 8には、 糸 1 〗が掛け渡された状態で糸送出管 28 aを〗段階 側方 (右側) の刺繍位置に移動したときの糸 1 1が掛け渡された経路に、 糸 1 1をクランプする下部糸クランプ機構 81及び糸〗 〗 の状態を検知す るセンサ一 8 2を配設する。 In the cover body 8, when the thread delivery pipe 28a is moved to the embroidery position on the side (right side) in the state where the thread 1 has been wound over the thread 1, the thread 1 has been passed along the path where the thread 1 has been wound. Detects the lower thread clamp mechanism 81 that clamps 1 and the state of thread〗〗. Sensor 1 8 2 is installed.
下部糸クランプ機搆 8 1 は、 刺痛を開始するときに、 下部糸クランプ機 構 8 1以下の糸 1 1の繰り出しを防止して、 糸 1 1 の端部が刺鐮布の表面 に出るのを防止するために一時的に糸 1 1 をクランプするためのもので、 ミシンへッ ド 1側に固定される固定挟持片 8 1 aと、 固定挟持片 8〗 aと の間で糸 1 1 をクランプする可動挟持片 8 1 bと、 可動挟持片 8〗 bの駆 動機構 8 1 cとから構成されている。  The lower thread clamp machine 811 prevents the thread 11 below the lower thread clamp mechanism 8 1 from feeding out when the puncture starts, so that the end of the thread 11 1 comes out on the surface of the sewn cloth. This is for temporarily clamping the thread 11 to prevent threading. The thread 1 1 is fixed between the fixed holding piece 8 1a fixed to the machine head 1 and the fixed holding piece 8〗 a. And a driving mechanism 81c of the movable holding piece 8b.
糸 1 1 の状態を検知するセンサー 8 2は、 糸〗 1 の槎リの戻りを光学的 に検知し、 糸 1 1 の磋リの戻りが生じた場合に剌鐮を中止し、 糸 1 〗 を交 換して、 不良品の発生を未然に防止するためのもので、 第 2 4図に示すよ うに、 発光及び受光素子 8 2 aと、 この発光及び受光素子 8 2 aと糸 1 1 を挟んで対設したミラー 8 2 bとから構成されている。  The sensor 8 2 that detects the state of the thread 11 optically detects the return of the thread 1, and stops the stimulation when the return of the thread 11 occurs. To prevent the occurrence of defective products. As shown in FIG. 24, the light emitting and receiving element 82a, the light emitting and receiving element 82a and the thread 11 And mirrors 8 2 b opposed to each other.
刺繍用ミシンのミシンへッ ド〗 の上部に配設する糸供給装置 2の第 2実 施例を、 第 2 5図〜第 3 2図に示す。  FIGS. 25 to 32 show a second embodiment of the thread supply device 2 arranged above the sewing machine head of the embroidery sewing machine.
この糸供給装置 2は、 複数個の色糸のポビン 2〗が収納できるポビン収 納部 2 2と、 ボビン収納部 2 2と一体化して配設した、 収納可能なボビン 2 1 の個数に対応して設けた糸張力調節機構 2 5、 針 1 0に向けて送り出 す糸 1 〗 を所定長さだけ保持する糸長さ調節機構 2 7及び糸送出機構 2 8 を備えた平面矩形状の本体 2 4 aを有する糸調節機構 2 4と、 所要のボビ ン 2 1 に対応する糸送出機構 2 8を所定の針 1 0に糸通しを行う糸通し装 置 7の上方に選択的に位置させる糸選択機構 2 9とからなる。  This yarn supply device 2 has a number of bobbins 2 1 that can be stored, and a pobin storage section 2 2 that can store a plurality of colored yarn pobbins 2〗 and a bobbin storage section 22 that is integrated with the bobbin storage section 22. A flat rectangular shape provided with a thread tension adjusting mechanism 25 provided with a thread, a thread length adjusting mechanism 27 for holding the thread 1 す sent out toward the needle 10 by a predetermined length, and a thread sending mechanism 28. A thread adjusting mechanism 24 having a main body 24a and a thread feeding mechanism 28 corresponding to a required bobbin 21 are selectively positioned above a threading device 7 for threading a predetermined needle 10. And a thread selection mechanism 29 to be operated.
この場合、 ポビン収納部 2 2に収納可能なポビン 2 1の個数と、 糸張力 調節機構 2 5の個数とは、 必ずしも一致させる必要はなく、 糸張力調節機 構 2 5の個数よりもポビン収納部 2 2に収納可能なボビン 2 1 の個数を多 く して、 糸張力調節機構 2 5に糸を掛けるポビン 2 1 を掛け替えるように することができる。 In this case, the number of the pobins 21 that can be stored in the pobin storage section 22 and the number of the thread tension adjusting mechanisms 25 need not necessarily match, and the number of the pobins is larger than the number of the thread tension adjusting mechanisms 25. Increase the number of bobbins 21 that can be stored in section 22 and change the bobbin 2 1 for threading to the thread tension adjustment mechanism 25. can do.
ボビン収納部 22は、 例えば、 4X7の合計 28個のボビン 2〗 を収納 するようにしたもので、 ボビン収納部 22には、 ボビン 21を挿入、 支持 するスピンドル 22 aを立設するとともに、 スピンドル 22 aの周囲に使 用するボビン 21に適合したボビンガイ ド (図示省略) を配設し、 底面に 各ポビン 21の糸 1 1をもつれないように引き出すためのフ: Lル卜 22 c を敷設する。  The bobbin storage section 22 stores, for example, a total of 28 bobbins 2〗 of 4 × 7. The bobbin storage section 22 has a spindle 22 a for inserting and supporting the bobbin 21, and a spindle 22 a. A bobbin guide (not shown) suitable for the bobbin 21 to be used is provided around 22a, and a bottom lug 22c for pulling out the thread 11 of each pobin 21 so that it does not get tangled is installed on the bottom surface. I do.
スピンドル 22 aには、 糸保持体 23を設け、 合計 28本の糸〗 1 を糸 保持体 23から間隔をあけて引き出し、 ポビン収納都 22の下都に一体に 取り付けた糸調節機構 24の糸張力調節機構 25に送り込むようにする。 なお、 合計 28本の糸 1 〗のうち 8本は、 糸保持体 23に保持するよう にする。  A thread holder 23 is provided on the spindle 22a, and a total of 28 threads〗 1 are pulled out from the thread holder 23 at an interval, and the thread of the thread adjusting mechanism 24 integrally attached to the lower city of the pobin storage space 22 is provided. Feed it into the tension adjustment mechanism 25. Eight out of a total of 28 yarns 1 mm are held by the yarn holder 23.
糸保持体 23は、 スピンドル 22 aの上端開口部に配設したセラミック 製のガイ ド管 (図示省略) と、 スピンドル 22 aの中空管路と、 中空管路 に連通するパイプ部材 23 sと、 パイプ部材 23 sの先端開口部に配設し たセラミック製のガイ ド管 23 tとから構成し、 各ボビン 21の糸 1 1を スピンドル 22 aの中空管路及びパイプ部材 23 sを介して、 糸張力調節 機構 25に送り込むようにする。  The thread holding member 23 includes a ceramic guide tube (not shown) disposed at the upper end opening of the spindle 22a, a hollow conduit of the spindle 22a, and a pipe member 23s communicating with the hollow conduit. And a ceramic guide tube 23t disposed at the tip end of the pipe member 23s, and the yarn 11 of each bobbin 21 is connected to the hollow conduit of the spindle 22a and the pipe member 23s. Through the thread tension adjusting mechanism 25.
なお、 糸 1 1をスピン ドル 22aの中空管路及びパイプ部材 23 sに挿 通する作業は、 ガイ ド管 23 qの上端開口から糸 1 1 と共に高圧空気流を 吹き込むことによリ容易に行うことができる。  The operation of inserting the yarn 11 into the hollow conduit of the spindle 22a and the pipe member 23s can be easily performed by blowing a high-pressure airflow together with the yarn 11 from the upper end opening of the guide tube 23q. It can be carried out.
ところで、 本実施例においては、 ポビン収納部 22をミシンヘッ ド 1に 固定して配設するようにしたが、 これに限定されず、 第 28図〜第 29図 に示す変形例のように、 ボビン収納部 22を、 左右に二等分して、 ュニッ ト化して構成し、 これを糸調節機構 24の平面矩形状の本体 24 aの上部 に着脱自在に取り付けるようにすることができる。 By the way, in the present embodiment, the pobin housing section 22 is fixed to the sewing machine head 1 and disposed. However, the present invention is not limited to this. The storage unit 22 is divided into two equal parts on the left and right sides to form a unit. This is the upper part of the flat rectangular main body 24 a of the thread adjusting mechanism 24. It can be detachably attached to the device.
このボビン収納部 2 2は、 例えば、 左右に各々 2 X 5の合計 1 0個、 総 計 2 0個のボビン 2 1 を収納するようにしたもので、 ポビン収納部 2 2に は、 ボビン 2 1 を挿入、 支持するスピンドル 2 2 aを立設するとともに、 スピンドル 2 2 aの周囲に使用するポビン 2 1 に適合したボビンガイ ド (図示省略) を配設し、 底面に各ボビン 2 1の糸 1 1 をもつれないように 引き出すためのフェル卜 2 2 cを敷設する。  The bobbin storage section 22 stores, for example, a total of 20 bobbins 2 1 on the left and right, 2 x 5 in total, and a total of 20 bobbins 21. In addition to erecting the spindle 2 2a that inserts and supports 1, bobbin guides (not shown) suitable for the pobin 21 used around the spindle 2 2a are arranged, and the thread of each bobbin 21 is placed on the bottom surface. Lay a felt 2 2 c to pull out 1 1 so that it does not become tangled.
そして、 スピンドル 2 2 aを立設した収納台 2 2 dを糸調節機構 2 4の 本体 2 4 aの上部に形成したガイ ドレール 2 2 i に摺動することによリ着 脱自在に取り付けるようにする。  Then, the storage table 2 2 d on which the spindle 22 a is erected is attached to the guide rail 22 i formed on the upper part of the main body 24 a of the thread adjusting mechanism 24 so as to be removably attached. To
この場合において、 スピンドル 2 2 aの中空管路に連通するパイプ部材 2 3 sの先端開口部を固定したパイプ部材保持部材 2 3 uを、 収納台 2 2 dを離脱する場合には収納台 2 2 dに立設した支持軸 2 2 f に、 また、 収 納台 2 2 dを装着する場合には糸調節機構 2 4の本体 2 4 aの上部に立設 した支持軸 2 2 gに、 選択的に SB設することができるようにする。  In this case, the pipe member holding member 23 u fixed to the opening at the tip end of the pipe member 23 s communicating with the hollow conduit of the spindle 22 a is used as the storage member when detaching the storage member 22 d. To the support shaft 22f set up on 2d, and to the storage stand 22d, to the support shaft 22g set up on the top of the main body 24a of the thread adjusting mechanism 24. , Selective SB can be set up.
また、 ガイ ドレール 2 2 i の前方には、 収納台: 2 2 dをガイ ドレール 2 2 i に装着する場合に、 収納台 2 2 dを仮置きして、 ガイ ドレール 2 2 i に沿って収納台 2 2 dを円滑に摺動することができるようにするための収 納台支持台 2 2 dを固定するとともに、 パイプ部材 2 3 sを支持して、 ノヽ ° ィプ部材 2 3 sの垂れ下がリ置の調整と絡まリを防止するためのパイプ部 材支持枠 2 2 hを摺動可能に配設する。  In addition, in front of the guide rails 2 2 i, when the storage base: 22 d is mounted on the guide rails 22 i, the storage bases 22 d are temporarily placed and stored along the guide rails 22 i. The base support 2 2 d is fixed so that the base 2 2 d can slide smoothly, and the pipe member 23 s is supported to support the pipe member 23 s. A pipe member support frame 22h is slidably provided to prevent drooping from adjusting and entanglement.
また、 ポビン収納部 2 2の収納台 2 2 dは、 望ましくは、 ミシンへッ ド 1 の頭数の複数倍個用意しておく。 これにより、 色糸の交換を行う場合に は、 収納台 2 2 dごと交換して色糸の交換に要する時間を短縮することが できる。 例えば、 本変形例のポビン収納部 2 2の収納台 2 2 dをミ ッ ドの頭数の 2倍個用意しておけば、 最大 4 0色の色糸の交換を短時間で 行うことができる。 この場合、 刺繍用ミシンの制御部にポビン収納部 2 2 の収納台 2 2 dに収納された各ポビン 2 1 の種類 (色) を予め記憶させて おくことにより、 収納台 2 2 dを交換するだけで、 多数の色糸の交換を自 動的に行うことができる。 In addition, it is preferable that the storage table 2 2 d of the pobin storage section 22 be prepared in plural numbers of the number of heads of the sewing machine 1. Accordingly, when the color yarn is replaced, the storage unit 22d is replaced every time, and the time required for the replacement of the color yarn can be reduced. For example, the storage table 22 d of the pobin storage section 22 If the number of heads is twice as large as the number of heads, replacement of up to 40 colors can be performed in a short time. In this case, the type (color) of each pobin 21 stored in the storage unit 2 2 d of the pobin storage unit 2 2 is stored in advance in the control unit of the embroidery sewing machine, thereby replacing the storage unit 2 2 d. By simply doing this, a large number of color yarns can be exchanged automatically.
なお、 本変形例においては、 収納台 2 2 dを糸調節機構 2 4の本体 2 4 aの上部に形成したガイ ドレール 2 2 i に摺動することにより着脱自在に 取り付けるようにしたが、 収納台 2 2 dを糸調節機構 2 4の本体 2 4 aの 上部に載置することによリ着脱自在に取り付けるようにすることもできる。 また、 ボビン収納部 2 2の分割数も、 2分割に限定されず、 3分割以上 とすることもできる。  In this modification, the storage table 2 2 d is detachably attached by sliding on the guide rail 22 i formed on the upper part of the main body 24 a of the thread adjusting mechanism 24. By mounting the table 22 d on the upper part of the main body 24 a of the thread adjusting mechanism 24, it is possible to removably attach it. Also, the number of divisions of the bobbin storage section 22 is not limited to two, but may be three or more.
ところで、 本第 2実施例においては、 糸張力調節機構 2 5は、 糸調節機 構 2 4の平面矩形状の本体 2 4 aの外面に設けられた、 各ポビン 2 〗 から の糸 1 1毎に 2個の糸張力調節部材 2 5 b, 2 5 cを有する。  By the way, in the second embodiment, the yarn tension adjusting mechanism 25 is provided on the outer surface of the flat rectangular main body 24 a of the yarn adjusting mechanism 24, and each of the yarns 11 from each pobin 2〗 is provided. Has two thread tension adjusting members 25b and 25c.
このうち 1 つの糸張力調節部材 2 5 έには、 糸 1 1 の張力を測定する張 力センサー 2 5 dを配設し、 糸 1 1の糸切れ等を検知できるようにする。 この張力センサー 2 5 dからの信号は、 電気信号として、 糸調節機構 2 4に配設した電気接点 2 5 eからミシンへッ ド 1 に配設した電気接点 2 5 f を備えた ¾気回路 2 5 gを介して刺繍用ミシンの制御部に送られ、 刺糠 用ミシンの駆動を制御するとともに、 ミシンヘッ ド 1等に配設した上糸及 び下糸の状態を表示する表示ランプ (図示省略) を点灯することによリ作 業者に糸 1 1 の糸切れを知らせるようにする。  A tension sensor 25 d for measuring the tension of the yarn 11 is provided on one of the yarn tension adjusting members 25 έ so that a yarn breakage of the yarn 11 can be detected. The signal from the tension sensor 25 d is converted into an electric signal from the electric contact 25 e disposed on the thread adjusting mechanism 24 to the electric contact 25 f disposed on the sewing machine head 1. An indicator lamp that is sent to the control unit of the embroidery sewing machine via 5 g to control the drive of the embroidery sewing machine and displays the status of the upper and lower threads arranged on the sewing machine head 1 etc. (Omitted) Lights up to inform the operator of thread breakage.
なお、 表示ランプのほか、 刺繍用ミシンの適宜位置には、 作業者に刺繍 用ミシンの状態を表示するための液晶表示盤等の表示装置と、 ブザー等の 聱報装置を設けることができる。 また、 糸 1 1 を針 1 0に向けて送り出す際に、 糸 1 1 に大きな抵抗がか からないようにするために、 糸張力調節部材 2 5 bによる糸 1 1の保持を 解除する糸張力解除機構 2 6を配設する (詳細は、 上記第〗実施例の糸張 力解除機構 2 6参照) 。 In addition to the display lamp, a display device such as a liquid crystal display panel for displaying the state of the embroidery sewing machine to an operator and an information device such as a buzzer can be provided at an appropriate position of the embroidery sewing machine. Also, in order to prevent a large resistance from being applied to the thread 11 when feeding the thread 11 toward the needle 10, the thread tension for releasing the holding of the thread 11 by the thread tension adjusting member 25 b is used. A release mechanism 26 is provided (for details, refer to the thread tension release mechanism 26 of the above-described second embodiment).
また、 糸調節機構 2 4の本体 2 4 aの近傍のミシンヘッ ド 1 には、 2個 の糸張力調節部材 2 5 b, 2 5 cにより加えられる糸〗 〗 の張力の大きさ を調整するための糸張力調節具 2 5 hを配設するようにする。  The sewing machine head 1 near the main body 24a of the thread adjusting mechanism 24 has a thread tension adjusting member 25b, 25c for adjusting the magnitude of the tension of the thread 加 え applied by the two thread tension adjusting members 25b, 25c. Thread tension adjuster of 25h shall be provided.
この糸張力調節具 2 5 hは、 後述の糸供給装置 2より下方に位置する天 秤 4 1 、 副天秤 4 2、 針 1 0等を介して糸〗 1 にかかる張力と同等の張力 を糸 1 1 にかけることができるもので、 これにより、 糸 1 1 を天秤 4 1 、 副天秤 4 2、 針 1 0等に掛け渡すことなく、 2個の糸張力調節部材 2 5 b, 2 5 cにより加えられる各ポビン 2 1からの糸 1 1 の張力の大きさを均一 に調整することができるようにする。 そして、 この糸張力調節具 2 5 hは、 基部に磁石を配設して、 ミシンへッ ド 1 の適宜位置、 より具体的には、 針 1 0に向けて各ボビン 2 1 からの糸 1 1 を送り出すために設けられる糸送 出機構 2 8の糸送出管 2 8 aの下方位置に選択的に着脱可能に設置するこ とができるようにする。  The thread tension adjuster 25 h applies a tension equivalent to the tension applied to the thread〗 1 via a balance 41, a sub-balance 42, a needle 10, etc., located below the thread supply device 2 described later. This makes it possible to hang the thread 1 1 on the balance 4 1, the auxiliary balance 4 2, the needle 10, etc. without hanging the thread 1 1 on the two thread tension adjusting members 25 b, 25 c The magnitude of the tension of the thread 11 from each of the pobins 21 applied by the method can be uniformly adjusted. The thread tension adjuster 25 h is provided with a magnet at the base thereof, and is provided at an appropriate position of the sewing machine head 1, more specifically, the thread 1 from each bobbin 21 toward the needle 10. 1 is provided so that it can be selectively detachably installed at a position below the yarn sending pipe 28 a of the yarn sending mechanism 28 provided for sending out the yarn 1.
糸調節機構 2 4の平面矩形状の本体 2 4 aの外面に設けられた糸送出機 構 2 8は、 針 1 0に向けて糸 1 1 を円滑に送り出すためのもので、 糸 1 1 を糸通し装置 7の上方に導く糸送出管 2 8 aと、 高圧空気源 (図示省略) に接続された高圧空気供給管 2 8 f と、 髙圧空気流により糸 1 〗 を糸通し 装置 7に向けて送り出すための空気ノズル 2 8 bとを有する。  A thread delivery mechanism 28 provided on the outer surface of the flat rectangular main body 24 a of the thread adjusting mechanism 24 is for smoothly delivering the thread 11 toward the needle 10. A thread delivery pipe 28 a leading above the threading device 7, a high-pressure air supply tube 28 f connected to a high-pressure air source (not shown), and a low-pressure air flow to feed the thread 1 に to the threading device 7. And an air nozzle 28 b for sending it out.
そして、 空気ノズル 2 8 bは、 糸送出管 2 8 aの上部開口の近傍に空気 ノズル 2 8 bの開口端が位置するように固定し、 糸通し装蟹 7の上方及び 刺鐮を行う位置にある糸送出管 2 8 aの空気ノズル 2 8 bに対して高圧空 気供給管 2 8 f から高圧空気を供給することができるように、 高圧空気供 給管 2 8 f を摺動可能に設けるようにする。 Then, the air nozzle 28 b is fixed so that the opening end of the air nozzle 28 b is located near the upper opening of the thread delivery pipe 28 a, and is positioned above the threading crab 7 and at the position where the pricking is performed. High-pressure air against the air nozzle 28 b of the yarn delivery pipe 28 a The high-pressure air supply tube 28 f should be slidably provided so that high-pressure air can be supplied from the air supply tube 28 f.
なお、 高圧空気供給管 2 8 f と空気ノズル 2 8 bは、 高圧空気供給管 2 8 f を摺動することにより、 本実施例に示すように、 高圧空気供給管 2 8 f と空気ノズル 2 8 bとが嵌挿されるように構成するほか、 高圧空気供給 管 2 8 f 及び空気ノズル 2 8 bの開口端部に配設したシール部材によリ、 S圧空気供給管 2 8 f と空気ノズル 2 8 bとが密閉状に接続されるように 構成することができる。  The high-pressure air supply pipe 28 f and the air nozzle 28 b are connected to the high-pressure air supply pipe 28 f by sliding the high-pressure air supply pipe 28 f as shown in this embodiment. 8b and the high-pressure air supply pipe 28f and the sealing member provided at the open end of the air nozzle 28b. The nozzle 28 b can be configured to be connected in a hermetically closed manner.
糸選択機構 2 9は、 所要のボビン 2〗 に対応する糸送出機構 2 8の糸送 出管 2 8 aを所定の針 1 0に糸通しを行う糸通し装置 7の上方に選択的に 位置させるもので、 糸調節機構 2 4をポビン収納部 2 2と共に、 ミシンへ ッ ド 1上に配設した摺動軸 2 9 i に水平面内で摺動自在に装着するととも に、 隣接する糸調節機構 2 4の本体 2 4 a同士を連結部材 2 4 eによリ接 続し、 駆動源 (図示省略) により、 摺動軸 2 9 i に沿ってすベての糸調節 機構 2 4の本体 2 4 aを連動して抱動して、 所要のポビン 2 1 に対応する 糸送出機構 2 8の糸送出管 2 8 aを所定の針 1 0に糸通しを行う糸通し装 置 7の上方に正確に位置させるすることができるように構成されている。  The thread selection mechanism 29 is selectively positioned above the threading device 7 for threading the thread delivery tube 28 a of the thread delivery mechanism 28 corresponding to the required bobbin 2 に to a predetermined needle 10. The thread adjusting mechanism 24 is attached to the sliding shaft 29 i provided on the sewing machine head 1 together with the pobin storage section 22 so as to be slidable in a horizontal plane, and the adjacent thread adjusting mechanism is attached. The main body 24a of the mechanism 24 is connected to each other by the connecting member 24e, and all the thread adjusting mechanisms along the sliding shaft 29i are driven by a drive source (not shown). 2 4a is interlocked and held, and above the threading device 7 for threading the thread delivery tube 28a of the thread delivery mechanism 28 corresponding to the required pobin 21 to the predetermined needle 10. It is configured so that it can be accurately positioned.
この場合、 糸選択機構 2 9は剌纖用ミシンの制御部によって制御される ようにし、 制御部にボビン収納部 2 2に収納された各ポビン 2 1 の種類 (色) を予め記憶させておくことにより、 多数の色糸の選択を自動的に行 うことができるようにする。  In this case, the thread selection mechanism 29 is controlled by the control unit of the sewing machine for stimulating fiber, and the control unit previously stores the type (color) of each of the pobbins 21 stored in the bobbin storage unit 22. In this way, a large number of color yarns can be automatically selected.
なお、 糸張力調節機構 2 5の下方に設けられる糸長さ調節機構 2 7等の 構成は、 上記第 1 実施例と同様である。  The configuration of the thread length adjusting mechanism 27 and the like provided below the thread tension adjusting mechanism 25 is the same as that of the first embodiment.
次に、 刺纖用ミシンのミシンへッ ド 1の糸供給装置 2の下部に配設する 糸張設機構 3及び糸通し機構 6からなる糸通し装置 7の第 2実施例を第 3 3図〜第 40図に示す。 Next, a second embodiment of a threading device 7 including a thread tensioning mechanism 3 and a threading mechanism 6 disposed below a thread supply device 2 of a sewing head 1 of a staple fiber sewing machine will be described in a third embodiment. 3 to 40.
糸張設機構 3は、 第 33図〜第 34図に示すように、 糸供給装置 2の糸 送出管 28 aから所定長さ垂下された糸 1 1の端部を針 1 0の近傍位置ま で導くもので、 糸挟持部材 31 と、 糸挟持部材 31を先端に配設したレバ 一 32と、 レバー 32の基端を支持する摺動片 33と、 摺動片 33を昇降 させるベル卜 35と、 レバー 32の中間位置に配設したローラ 32bを嵌 挿してレバー 32の摇動角度を規制する糸張設機構本体 30に略上下方向 に形成したガイ ド溝 37と、 ベルト 35を駆動する駆動機構 38とから構 成する。  As shown in FIGS. 33 to 34, the yarn tensioning mechanism 3 moves the end of the yarn 11 suspended from the yarn delivery pipe 28 a of the yarn supply device 2 by a predetermined length to a position near the needle 10. A thread holding member 31, a lever 32 provided with the thread holding member 31 at the distal end, a sliding piece 33 for supporting the base end of the lever 32, and a belt 35 for raising and lowering the sliding piece 33. And a guide groove 37 formed substantially vertically in the thread tensioning mechanism main body 30 for inserting the roller 32b disposed at an intermediate position of the lever 32 to regulate the rotation angle of the lever 32, and driving the belt 35. The drive mechanism 38 is included.
このように、 糸張設機構 3を、 レバー 32、 昇降する摺動片 33等で構 成することにより、 糸張設機構 3をコンパク 卜化することができ、 特に、 糸挟持部材 31のミシンへッ ド 1の前方への突出量を小さくすることがで さる。  As described above, the thread tensioning mechanism 3 is composed of the lever 32, the sliding piece 33 that moves up and down, and the like, so that the thread tensioning mechanism 3 can be made compact. The amount by which Head 1 protrudes forward can be reduced.
この糸張設機構 3は、 ベルト 35を駆動することにより、 糸挟持部材 3 1 を略中間部の待機位置 (摺動片 33を位置センサ 39cの位置) から、 糸挟持部材 31の開放位置 (摺動片 33を位置センサ 39 bの位置) を介 して、 糸送出管 28 aから垂下された糸 1 〗の端部を挟持する最上昇位置 (摺動片 33を位置センサ 39 aの位置) まで移動させるときに、 糸挟持 部材 31が糸〗 1の端部を自動的に挟持することができるように、 ミシン へッ ドに突設したブラケッ 卜に摇動可能にシュ一部材を 設し、 このシュ 一部材に糸挟持部材 31の可動挟持片に突設した操作片の先端に配設した ローラ 31 f が当接して、 可動挟持片 31 aをばね部材の付勢力に抗して 開放することにより、 可動挟持片 31 aと固定挟持片 31 bとの間に糸送 出管 28 aから垂下された糸 1 1の端部を揷通した後、 シユー部材を駆動 機搆によリ摇動させ、 シユー部材と操作片との当接を解除して、 可動挟持 片 31 aを復帰させ、 可動挟持片 31 aと固定挟持片 31 bとの間に挿通 されている糸 1 〗 を挟持するように構成する (上記第 1実施例と同様) 。 そして、 この状態でベルト 35を駆動することにより、 糸挟持部材 31 を、 最上昇位置 (摺動片 33を位置センサ 39aの位置) から最降下位置 (摺動片 33を位置センサ 39 dの位置) まで移動させ、 針〗 0の近傍位 置まで導かれた糸 1 1を針 1 0の針孔 1 O aに導き、 糸通しを行った後、 糸挟持部材 31が挟持していた糸 1 1の端部を解放することができるよう に、 糸張設機構本体 30の下部に揺動可能に操作部材を配設し、 この操作 部材により、 糸挟持部材 31の可動挟持片 31 aに突設した操作片の先端 に配設したローラ 31 f を押圧操作して、 可動挟持片 31 aをばね部材の 付勢力に杭して開放するように構成する (上記第 1実施例と同様) 。 The thread tensioning mechanism 3 drives the belt 35 to move the thread holding member 31 from a substantially intermediate standby position (the sliding piece 33 is at the position of the position sensor 39c) to the open position of the thread holding member 31 (the position of the position sensor 39c). The sliding piece 33 is positioned at the highest position where the end of the thread 1〗 hanging from the thread delivery pipe 28a is clamped via the position sensor 39b (the position of the position sensor 39b). ) So that the thread clamp member 31 can automatically clamp the end of the thread 1 when it is moved to the bracket. Then, a roller 31f disposed at the tip of the operation piece protruding from the movable holding piece of the thread holding member 31 abuts on this one member, and the movable holding piece 31a is pressed against the urging force of the spring member. When released, the end of the thread 11 hanging from the thread delivery pipe 28a between the movable holding piece 31a and the fixed holding piece 31b After 揷通, the the shoes member is by re 摇動 the driving machine 搆 releases the contact between the shoes member and the operating piece, the movable clamping The piece 31a is returned so as to hold the thread 1 の 間 に inserted between the movable holding piece 31a and the fixed holding piece 31b (similar to the first embodiment). By driving the belt 35 in this state, the thread holding member 31 is moved from the highest position (the sliding piece 33 is at the position of the position sensor 39a) to the lowest position (the sliding piece 33 is at the position of the position sensor 39d). ), And the thread 11 guided to the position near the needle〗 0 is guided to the needle hole 1 O a of the needle 10, and after performing threading, the thread 1 held by the thread clamping member 31 is An operating member is swingably arranged below the thread tensioning mechanism main body 30 so that the end of the thread tensioning mechanism body 30 can be released, and the operating member projects the movable holding piece 31 a of the thread holding member 31. The roller 31f disposed at the tip of the provided operation piece is pressed to operate, so that the movable holding piece 31a is piled up by the urging force of the spring member and opened (similar to the first embodiment).
また、 駆動機構 38は、 モータ (図示省略) によリベルト 35の回転軸 38 aを正、 逆両方向に選択的に駆動できるように構成する。  Further, the drive mechanism 38 is configured to be able to selectively drive the rotation shaft 38a of the re-belt 35 in both the forward and reverse directions by a motor (not shown).
また、 位置センサ 39, 39 b, 39c, 39dの配設位置は、 適宜調 整することができるようにする。  Also, the arrangement positions of the position sensors 39, 39b, 39c, and 39d can be adjusted as appropriate.
また、 糸挟持部材 31に配設した空気ノズル 63に対して高圧空気を供 給する機構としては、 空気ノズル 63を高圧空気源 (図示省略) に高圧空 気供給管を介して直接接統するほか、 糸挟持部材 31が最降下位置 (摺動 片 33が位置センサ 39 dの位置) に移動したとき、 空気ノズル 63と固 定側に配設した高圧空気供給管とが嵌挿されるように構成したり、 第 34 図に示すように、 空気ノズル 63及び高圧空気供給管 63 aの開口端部に 配設したシール部材により、 空気ノズル 63及び高圧空気供給管 63 aと が密閉状に接続されるように構成することができる。  As a mechanism for supplying high-pressure air to the air nozzle 63 disposed on the thread holding member 31, the air nozzle 63 is directly connected to a high-pressure air source (not shown) via a high-pressure air supply pipe. In addition, when the thread holding member 31 is moved to the lowest position (the sliding piece 33 is at the position of the position sensor 39d), the air nozzle 63 and the high-pressure air supply pipe arranged on the fixed side are fitted. As shown in Fig. 34, the air nozzle 63 and the high-pressure air supply pipe 63a are hermetically connected by a sealing member provided at the open end of the air nozzle 63 and the high-pressure air supply pipe 63a. It can be configured to be.
ところで、 本実施例においては、 糸張設機構 3の糸挟持部材 31の開閉 動作を糸張設機構本体 30の上部及び下部に配設したシュ一部材及び操作 部材により行うように構成したが、 これに限定されず、 第 3 5図〜第 3 6 図に示す変形例のように、 可動挟持片 3 1 aと固定挟持片 3 1 b間に糸挟 持部材 3 1 を閉じる方向に付勢する捻りばね 3 1 j を配設して糸挟持部材 3 1 を構成し、 糸挟持部材 3〗 の開閉動作を糸張設機構本体 3 0の上部及 び下部に配設した適宜の操作部材 3 1 h及びその駆動機構 3 1 i により行 うように構成することができる。 By the way, in the present embodiment, the opening and closing operation of the thread holding member 31 of the thread tensioning mechanism 3 is performed by a single member and an Although it is configured to be performed by members, the present invention is not limited to this. As shown in a modified example shown in FIGS. 35 to 36, the yarn is held between the movable holding piece 31a and the fixed holding piece 31b. A torsion spring 3 1 j for urging the member 3 1 in the closing direction is provided to constitute the thread holding member 3 1, and the opening and closing operation of the thread holding member 3 を is performed at the upper and lower portions of the thread tensioning mechanism main body 30. And a drive mechanism 31 i thereof.
糸張設機構 3により糸供給装雪 2の糸送出管 2 8 aと針 1 0の近傍位置 との間に張設された糸 1 1 は、 天秤機構 4の天秤 4 1及び副天秤 4 2に掛 けられる。  The thread 11, which is stretched between the thread delivery pipe 28 a of the thread supply snow cover 2 and the position near the needle 10 by the thread tensioning mechanism 3, balances the balance 4 1 and the auxiliary balance 4 2 of the balance mechanism 4. It is hung on.
なお、 本実施例においては、 天秤機構 4及びこの天秤機構 4に対応する 針 1 0を 3組配設し、 これらの針 1 0を設けたフレーム 1 cを水平面内で 摇動するように構成しているが、 フレーム 1 cに設ける針〗 0の組数を増 滅したり、 フレーム〗 cを水平面内で摺動するように構成することもでき る。  In this embodiment, three sets of the balance mechanism 4 and the needles 10 corresponding to the balance mechanism 4 are provided, and the frame 1c provided with the needles 10 is moved in a horizontal plane. However, the number of sets of needles 0 provided on the frame 1c can be reduced, or the frame 1c can be configured to slide in a horizontal plane.
天枰 4 1 には、 先端に糸掛け孔 4 1 aを、 基端に天秤 4 1 の駆動ピン 4 1 cを嵌挿する切欠部 4 1 bを形成する。  The ceiling 41 has a threading hole 41a at the distal end and a cutout 41b into which the drive pin 41c of the balance 41 is inserted at the base end.
副天秤 4 2は、 リング形状の糸掛け孔 4 2 aと、 糸掛け孔 4 2 aを先端 に配設したレバー 4 2 と、 レバ一 4 2 bを摺動自在に支持する摺動片 4 2 cと、 糸張設機構本体 3 0に略上下方向に配設した摺動片 4 2 cのガイ ド管 4 2 dと、 摺動片 4 2 cを糸張設機構 3の糸挟持部材 3 1 に吸着して 糸挟持部材 3 1 の昇降に合わせてガイ ド管 3 4に沿って昇降させるための 磁石片 4 2 eと、 レバー 4 2 bの他端に配設したローラ 4 2 f が当接して 糸掛け孔 4 2 aの位置を規制するシユー部材 4 2 と、 レバー 4 2 bの他 端に配設したローラ 4 2 f がシュ一部材 4 2 gに当接するように付勢する ばね部材 4 2 hとから構成する。 これにより、 糸 1 1 は、 天秤 4 1の糸掛け孔 4 1 a及び副天秤 4 2の糸 掛け孔 4 2 aに掛けられ、 所要のジグザグ状に保持された状態で剌纖が行 われる。 The auxiliary balance 42 includes a ring-shaped thread hooking hole 42 a, a lever 42 having the thread hooking hole 42 a at the tip, and a sliding piece 4 slidably supporting the lever 42 b. 2 c, guide tube 4 2 d of sliding piece 4 2 c arranged substantially vertically in thread tensioning mechanism main body 30, and sliding piece 4 2 c with thread holding member of thread tensioning mechanism 3 3 Magnet piece 4 2 e for moving up and down along guide tube 34 in accordance with raising and lowering of thread holding member 3 1 by attracting to 1 and roller 4 2 f arranged at the other end of lever 4 2 b Abuts the shoe member 42 that regulates the position of the threading hole 42a, and the roller 42f disposed at the other end of the lever 42b so as to contact the shoe member 42g. Spring member 4 2 h. As a result, the thread 11 is hung on the thread hooking hole 41a of the balance 41 and the thread hooking hole 42a of the sub-balance 42, and the stimulating fiber is carried out while being held in a required zigzag shape.
そして、 刺繍時、 天秤 4 1 は、 従来の刺繡用ミシンと同様の駆動機構に より往復駆動され、 一方、 副天秤 4 2は、 下死点の待機位置に保持される。 なお、 これらの構成及び作用は上記第〗 実施例と同様である。  At the time of embroidery, the balance 41 is reciprocally driven by the same drive mechanism as the conventional embroidery sewing machine, while the sub balance 42 is held at the standby position at the bottom dead center. Note that these configurations and operations are the same as in the above-described third embodiment.
糸通し機構 6の基本構成は、 上記第 1実施例と同様であるが、 このうち、 糸押下機構 6 4は、 第 3 7図に示すように、 糸引き抜き機構 6〗 に軸6 4 cを介して摇動自在に配設した糸押下片 6 4 aの先端 6 4 f を鉤形に形成 して、 フック部材 6 1 aに引掛けた糸 1 1 がフック部材 6 1 aから外れな いようにしている。  The basic configuration of the threading mechanism 6 is the same as that of the first embodiment. Among them, the thread pushing mechanism 64 has a shaft 64c attached to the thread pulling mechanism 6 as shown in FIG. The tip 6 4 f of the thread pressing piece 6 4 a movably arranged through the hook is formed into a hook shape, and the thread 11 hooked on the hook member 6 1 a does not come off the hook member 6 1 a Like that.
ところで、 本実施例においては、 糸通し機構 6の糸引き抜き機構 6 1の フック部材 6 1 aに糸〗 1 が確実に引掛かるように、 糸押下機構 6 4を用 いるようにしているが、 これに限定されず、 第 3 8図に示す変形例のよう に、 糸引き抜き機構 6 1 の案内部材 6 1 b, 6 1 bの側方に空気ノズル 6 5 a , 6 5 bを SB設し、 空気ノズル 6 5 a, 6 5 bから高圧空気を下方に 向けて放出することにより、 糸引き抜き機構 6 1 の糸挿通孔 6 1 cに挿通 した糸 1 1 の両側を押し下げるように構成することができる。  By the way, in the present embodiment, the thread pushing mechanism 64 is used so that the thread〗 1 is securely hooked on the hook member 6 1a of the thread pulling mechanism 61 of the threading mechanism 6. However, the air nozzles 65a and 65b are provided on the side of the guide members 61b and 61b of the thread pull-out mechanism 61, as shown in a modified example shown in FIG. By discharging high-pressure air downward from the air nozzles 65a and 65b, both sides of the thread 11 inserted into the thread insertion hole 61c of the thread pull-out mechanism 61 are depressed. Can be.
そして、 本実施例の刺耱用ミシンにおいては、 上記第 1実施例の剌據用 ミシンと同様、 糸通しを行った後、 糸供給装置 2の糸選択機構 2 9を駆動 することにより、 糸 1 1が掛け渡された状態で糸送出管 2 8 aを 1段階側 方 (右側) に移動して、 刺總を行うようにする。  Then, in the sewing machine according to the present embodiment, as in the case of the stimulating sewing machine according to the first embodiment, the thread is threaded, and then the thread selecting mechanism 29 of the thread supply device 2 is driven to thereby control the thread. 11 While the 1 is laid, move the thread delivery tube 28a to the next step (to the right) to perform the stab.
そして、 糸 1 1が掛け渡された経路には、 上部糸クランプ機構、 糸切断 機構及び切断糸回収機構 5 3からなる補助機構を 設する。  An auxiliary mechanism including an upper thread clamping mechanism, a thread cutting mechanism, and a cut thread collecting mechanism 53 is provided on the path where the thread 11 is laid.
このうち、 切断糸回収機構 5 3は、 糸 1 1 を交換するとき等に糸切断機 構により切断された糸 1 1 を回収するためのもので、 第 3 9図〜第 4 0図 に示すように、 先端に糸 1 1 を引掛けるフック 5 3 bを形成した操作杆 5 3じと、 操作杆 5 3 cの駆動機構 5 3 dと、 操作杆 5 3 cが摺動可能に揷 通されるとともに、 切断された糸 1 1 を引き込み回収する吸引管 5 3 e, 5 3 i と、 吸引管 5 3 e, 5 3 i , 5 3 j に吸引力又は送出力を生じさせ るための高圧空気の導入管 5 3 f , 5 3 gと、 吸引管 5 3 jの先端部に着 脱可能に配設した、 回収された糸〗 1 を貯留する網体で形成された回収容 器 5 3 hと、 回収機構本体 5 3 aを摇動軸 5 3 mを中心に待機位置と糸 1 1 の回収位置との間で揺動駆動する駆動機構 5 3 kとから構成されている c また、 本実施例の刺繍用ミシンにおいては、 上記第 1実施例の刺縮用ミ シンと同様、 ミシンヘッ ド 1 に、 カバー体を設け、 このカバー体には、 糸 1 1が掛け渡された状態で糸送出管 2 8 aを 1段階側方 (右側) の刺繍位 置に移動したときの糸〗 1が掛け渡された経路に、 糸 1 1 をクランプする 下部糸クランプ機構及び糸 1 1の状態を検知するセンサーを配設するよう にする。 Of these, the cut thread collecting mechanism 53 is used when the thread 11 is replaced. It is for collecting the thread 11 cut by the structure, and as shown in FIGS. 39 to 40, an operating rod 53 formed with a hook 53b for hooking the thread 11 at its tip. And a driving mechanism 53d for the operating rod 53c and a suction pipe 53e, 53i for slidably penetrating the operating rod 53c to draw in and collect the cut thread 11. And suction pipes 53 f, 53 g for generating suction force or sending power to the suction pipes 53 e, 53 i, 53 j, and at the tip of the suction pipe 53 j. The retractable container 53 h formed of a net that stores the collected yarn 1 that is detachably disposed, and the collection mechanism main body 53 a is set to the standby position with the driving shaft 53 m as the center. The drive mechanism 53k is configured to swing and drive between the thread 11 and the collection position.The embroidery sewing machine of the present embodiment is different from the embroidery sewing machine of the first embodiment. Similarly, sewing machine 1 In this cover body, the thread〗 1 when the thread delivery pipe 28 a is moved to the embroidery position one step side (right side) while the thread 11 is laid A lower thread clamp mechanism for clamping the thread 11 and a sensor for detecting the state of the thread 11 are arranged in the route.
次に、 本実施例 (第 1実施例及び第 2実施例) の剌辗用ミシンの操作方 法について説明する。  Next, a method of operating the stimulating sewing machine according to the present embodiment (the first embodiment and the second embodiment) will be described.
まず、 刺繍の前段階の操作方法について説明する。  First, a description will be given of an operation method at a stage prior to embroidery.
刺鐮を開始するときには、 刺繍用ミシンのミシンへッ ド〗の上部に又は 分離して配設した糸供給装置 2のボビン収容部 2 2に、 各々色糸のボビン 2 1 を収容し、 ポビン 2〗 から繰り出した糸 1 1 を糸保持体 2 3を介して 糸張力調節機構 2 4に掛け渡し、 糸 1 1 の端部を糸送出管 2 8 aから所定 長さ垂下するようにする。  At the start of embroidery, the bobbins 21 of the respective color threads are stored in the bobbin storage sections 22 of the thread supply device 2 arranged above or separately from the sewing head of the embroidery sewing machine. The yarn 11 drawn out from 2〗 is wound over the yarn tension adjusting mechanism 24 via the yarn holder 23, and the end of the yarn 11 is hung from the yarn delivery pipe 28a by a predetermined length.
次に、 刺鐮を開始するときの操作方法について説明する。  Next, an operation method for starting puncturing will be described.
糸 1 1 を掛け渡した糸供給装置 2を、 糸選択機構 2 9を駆動することに より、 所要のボビン 2 1 に対応する糸送出機構 2 8の糸送出管 2 8 aを糸 通しを行う糸通し装置 7の上方に選択的に、 かつ、 正確に位 Sさせる。 その後、 空気ノズル 2 8 bから高圧空気を糸送出管 2 8 a内に送り込む ようにしながら、 糸張設機構 3のベルト 3 5を駆動することにより、 糸挟 持部材 3 1 を中間位置近傍の待機位置から、 糸送出管 2 8 aから垂下され た糸 1 〗 の端部を挟持する最上昇位置まで移動させ、 糸挟持部材 3 1 によ リ糸〗 1 の端部を挟持する。 The yarn supply device 2 over which the yarn 1 1 Thus, the thread delivery pipe 28a of the thread delivery mechanism 28 corresponding to the required bobbin 21 is selectively and accurately positioned above the threading device 7 for threading. Then, while driving the belt 35 of the yarn tensioning mechanism 3 while sending high-pressure air from the air nozzle 28 b into the yarn delivery pipe 28 a, the yarn clamping member 31 is moved near the intermediate position. From the standby position, the end of the thread 1 さ れ suspended from the thread delivery pipe 28 a is moved to the highest position for holding the end of the thread 1 、, and the end of the thread 1 挟 is held by the thread holding member 31.
そして、 糸張力解除機構 2 6により糸 1 1 に糸張力調節機構 2 5による 抵抗がかからないようにした状態で、 糸長さ調節機構 2 7の糸長さ調節片 2 7 cを前進させることによリ糸 1 1 を所定長さだけ保持するとともに、 糸張設機構 3のベルト 3 5を駆動することにより、 糸挟持部材 3 1 を降下 させ、 糸 1 1 の端部を糸通し位置にある針 1 0の近傍位置まで導くように する。  Then, the yarn length adjusting piece 27 c of the yarn length adjusting mechanism 27 is advanced while the resistance of the yarn tension adjusting mechanism 25 is not applied to the yarn 11 by the yarn tension releasing mechanism 26. The yarn holding member 31 is lowered by driving the belt 35 of the yarn tensioning mechanism 3 while holding the weft 11 by a predetermined length, and the end of the yarn 11 is at the threading position. The needle should be guided to a position near the needle 10.
このとき、 糸張設機構 3によリ糸送出管 2 8 aと糸通し位置にある針 1 0の近傍位置との間に張設された糸 1 1 は、 天秤機構 4の天秤 4 1及び副 天秤 4 2に掛けられる。  At this time, the thread 11 stretched by the thread tensioning mechanism 3 between the thread delivery pipe 28 a and the position near the needle 10 at the threading position is the balance 4 1 of the balance mechanism 4 and It is hung on the sub balance 4 2.
その後、 糸張力解除機構 2 6を解除することにより、 糸 1 1 に糸張力調 節機構 2 5による抵抗がかかるようにした状態で、 予め降下、 前進させる ことによりフック部材 6 1 aの先端を針 1 0の針孔 1 0 aに揷通した糸引 き抜き機構 6〗 の案内部材 6 1 bの糸挿通孔 6 1 cに、 糸張設機構 3の糸 挟持部材 3 1 により挟持されている糸 1 1 を、 糸挟持部材 3〗 に配設した 空気ノズル 6 3から高圧空気を糸引き抜き機構 6 1 に向けて送り込むこと によリ揷通するとともに、 糸長さ調節機構 2 7の糸長さ調節片 2 7 cを後 退させることにより保持した糸〗 1の送り出しを可能とし、 糸挟持部材 3 1 による糸 1 1 の挟持を解除し、 糸長さ調節機構 2 7に保持されていた必 要長さの糸 1 1 を糸引き抜き機構 6 1の案内部材 6 1 bの糸挿通孔 6 1 c に挿通するようにする。 Then, by releasing the thread tension release mechanism 26, the tip of the hook member 61a is lowered and advanced in advance in a state where the resistance of the thread tension adjustment mechanism 25 is applied to the thread 11. It is held by the thread holding member 3 1 of the thread tensioning mechanism 3 in the thread insertion hole 6 1 c of the guide member 6 1 b of the thread pull-out mechanism 6 that has passed through the needle hole 10 a of the needle 10. The high-pressure air is fed from the air nozzle 63 provided on the yarn holding member 3 to the yarn pulling-out mechanism 61, and the yarn 11 is passed through the yarn 11 and the yarn length of the yarn length adjusting mechanism 27 By retracting the length adjusting piece 27 c, the held yarn〗 1 can be sent out, the holding of the yarn 11 by the yarn holding member 31 is released, and the yarn is held by the yarn length adjusting mechanism 27. Must The thread 11 of the required length is inserted into the thread insertion hole 6 1c of the guide member 6 1b of the thread pull-out mechanism 61.
そして、 空気ノズル 6 3からの高圧空気の送り込みを停止した後、 糸引 き抜き機構 6 1 を後退させ、 糸押下片 6 4 aを糸揷通孔 6 1 cを遮蔽する 方向に摇動させ、 糸挿通孔 6 1 cに挿通した糸 1 1 の両端を案内部材 6 1 bの側面に沿って押し下げることにより、 糸挿通孔 6 1 cに揷通した糸 1 1 を、 糸引き抜き機構 6 1 のフック部材 6 1 aに正確に引掛けながら、 糸 引き抜き機構 6 1 を後退させ、 フック部材 6〗 aを針孔 1 0 aから引き抜 くことにより糸通しを行う。  Then, after stopping the supply of the high-pressure air from the air nozzle 63, the yarn pulling-out mechanism 61 is retracted, and the thread pressing piece 64a is moved in a direction to shield the thread hole 61c. By pushing down both ends of the thread 11 inserted through the thread insertion hole 6 1c along the side surface of the guide member 6 1b, the thread 11 passed through the thread insertion hole 6 1c can be removed by the thread pull-out mechanism 61. The thread pulling-out mechanism 61 is retracted while accurately hooking the hook member 61a, and the threading is performed by pulling out the hook member 61a from the needle hole 10a.
この場合において、 適当な時に、 糸供給装置 2の糸選択機構 2 9を駆動 することにより、 糸 1 1 が掛け渡された状態で糸送出管 2 8 aを 1段階側 方 (右側) に移動するようにする。  In this case, by driving the yarn selection mechanism 29 of the yarn supply device 2 at an appropriate time, the yarn delivery pipe 28a is moved one step side (right side) while the yarn 11 is being stretched. To do it.
その後、 糸張設機構 3のベルト 3 5を駆動することにより、 糸挟持部材 3 1 を中間位置近傍の待機位置に復帰させ、 刺繍を開始する。  Thereafter, by driving the belt 35 of the thread tensioning mechanism 3, the thread clamping member 31 is returned to the standby position near the intermediate position, and embroidery is started.
なお、 刺繍の開始時、 一時的に下部糸クランプ機構 8 1 により糸 1 1 を クランプすることによって、 下部糸クランプ機構 8 1以下の糸 1 1 の繰り 出しを防止し、 糸〗 1 の端部が剌纏布の表面に出るのを防止する。  At the start of embroidery, the lower thread clamp mechanism 81 temporarily clamps thread 11 to prevent unwinding of thread 11 below the lower thread clamp mechanism 8 1, and the end of thread〗 1 From coming out on the surface of the cloth.
その後、 下部糸クランプ機構 8 1 による糸 1 1 のクランプを解除し、 剌 繍を行う。  After that, the clamp of the thread 11 by the lower thread clamp mechanism 81 is released, and the embroidery is performed.
また、 糸〗 〗 を交換するときには、 上部糸クランプ機構 5 1 により糸 1 1 をクランプし、 ポビン 2 1から新たに糸が繰り出されることを防止した 状態で、 切断糸回収機構 5 3の操作杆 5 3 cの先端に形成したフック 5 3 bに糸 1 1 を引掛け、 針板の下方及び糸切断機構 5 2において、 相前後し て糸〗 1 を切断し、 切断された糸 1 1 を、 切断糸回収機構 5 3の吸引管 5 3 eを介して回収容器 5 3 h内に回収する。 以下、 同じようにして、 糸通しと剌纖を行う工程を繰り返す。 産業上の利用可能性 Also, when replacing the thread〗, the operating rod of the cut thread collecting mechanism 53 is clamped by the upper thread clamp mechanism 51 to clamp the thread 11 to prevent new thread from being unwound from the pobin 21. The thread 11 is hooked on the hook 5 3b formed at the tip of 53 c, the thread〗 1 is cut in front of and below the needle plate and in the thread cutting mechanism 52, and the cut thread 11 is removed. The cut yarn is collected in the collection container 53 h via the suction pipe 53 e of the cut thread collection mechanism 53. Hereinafter, in the same manner, the steps of performing threading and stimulating fiber are repeated. Industrial applicability
本発明の刺繍用ミシンにおける糸通し装墅によれば、 色糸を交換すると きや糸が切れたときの処理等を人手を介さずに自動的に行うことができ、 また、 それに要する時間自体を短縮することができ、 これによつて、 ミシ ンの稼働率及び生産性を向上することができるため、 特に、 多数の色糸を 頻繁に交換する刺繡用ミシンに好適に用いることができる。  According to the threader in the sewing machine for embroidery of the present invention, when a color thread is replaced or when a thread breaks, processing and the like can be automatically performed without human intervention, and the time required for the processing itself can be improved. Therefore, since the operating rate and productivity of the sewing machine can be improved, it can be suitably used particularly for an embroidery sewing machine in which many colored yarns are frequently replaced.

Claims

請 求 の 範 囲 . 糸送出管から垂下された糸の端部を挟持する糸挟持部材を備え、 該糸 挟持部材によリ挟持した糸を針の近傍位置まで導くとともに、 張設され た糸を天秤機構に掛ける糸張設機構と、 糸を針孔に導く糸通し機構とか らなることを特徴とする刺鐮用ミシンにおける糸通し装置。A thread holding member for holding the end of the thread hanging from the thread delivery pipe, the thread held by the thread holding member being guided to a position near the needle, and the thread being stretched. A thread tensioning mechanism for hanging the thread on a balance mechanism, and a threading mechanism for guiding a thread to a needle hole.
. 前記糸通し機構が、 先端を鉤形に形成したフック部材及び該フック部 材の両側に配設した、 糸挿通孔及び糸逃げ溝を形成した案内部材を備え た糸引き抜き機構と、 該糸引き抜き機構の案内部材に形成した糸揷通孔 に糸挟持部材により挟持した糸を送り込む空気ノズルとからなることを 特徴とする請求項 1記載の刺繍用ミシンにおける糸通し装置。A thread pulling mechanism, comprising: a hook member having a hook-shaped tip at a tip thereof; and a guide member having a thread insertion hole and a thread relief groove disposed on both sides of the hook member. 2. The threading device in an embroidery sewing machine according to claim 1, further comprising an air nozzle for feeding a thread held by the thread holding member into a thread passing hole formed in a guide member of the pull-out mechanism.
. 前記糸通し機構の案内部材に形成した糸揷通孔に挿通した糸の両端を 案内部材の側面に沿って押し下げる糸押下機構を配設したことを特徴と する請求項〗 又は 2記載の刺繍用ミシンにおける糸通し装置。 3. The embroidery device according to claim 2, further comprising a thread pressing mechanism that pushes both ends of a thread inserted through a thread hole formed in a guide member of the threading mechanism along a side surface of the guide member. Threading device for sewing machines for sewing.
PCT/JP1997/002602 1996-07-30 1997-07-28 Threading device in sewing machine for embroidery WO1998004769A1 (en)

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EP97933039A EP0921225A4 (en) 1996-07-30 1997-07-28 Threading device in sewing machine for embroidery
JP50869198A JP3162082B2 (en) 1996-07-30 1997-07-28 Threader in embroidery sewing machine

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JP21778496 1996-07-30
JP8/217784 1996-07-30
JP8297342A JP2000073273A (en) 1996-07-30 1996-10-17 Sewing machine for embroidery
JP8/297342 1996-10-17

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EP0921225A4 (en) 2000-07-12
JP2000073273A (en) 2000-03-07
EP0921225A1 (en) 1999-06-09
WO1998004768A1 (en) 1998-02-05
JP3192153B2 (en) 2001-07-23
CN1225697A (en) 1999-08-11
KR20000029458A (en) 2000-05-25

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