CN106757847A - Method and component for implementing the method for producing stitching starting upper thread - Google Patents
Method and component for implementing the method for producing stitching starting upper thread Download PDFInfo
- Publication number
- CN106757847A CN106757847A CN201611037467.9A CN201611037467A CN106757847A CN 106757847 A CN106757847 A CN 106757847A CN 201611037467 A CN201611037467 A CN 201611037467A CN 106757847 A CN106757847 A CN 106757847A
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- upper thread
- section
- sewing
- stitching
- starting
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- 238000000034 method Methods 0.000 title claims abstract description 28
- 238000004519 manufacturing process Methods 0.000 title claims description 9
- 238000009958 sewing Methods 0.000 claims abstract description 82
- 238000005520 cutting process Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 description 10
- 230000000694 effects Effects 0.000 description 7
- 230000000977 initiatory effect Effects 0.000 description 7
- 239000011159 matrix material Substances 0.000 description 7
- 239000000758 substrate Substances 0.000 description 5
- 238000010417 needlework Methods 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- 230000033001 locomotion Effects 0.000 description 3
- 238000003860 storage Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000010355 oscillation Effects 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 230000008450 motivation Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B59/00—Applications of bobbin-winding or -changing devices; Indicating or control devices associated therewith
-
- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B49/00—Take-up devices, e.g. levers, for the needle thread
-
- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B47/00—Needle-thread tensioning devices; Applications of tensometers
-
- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B57/00—Loop takers, e.g. loopers
-
- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B57/00—Loop takers, e.g. loopers
- D05B57/08—Loop takers, e.g. loopers for lock-stitch sewing machines
-
- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B65/00—Devices for severing the needle or lower thread
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Sewing Machines And Sewing (AREA)
Abstract
The present invention relates to a kind of for producing the stitching starting method of upper thread, corresponding assembly and sewing machine.In order to produce the stitching starting section of the expected stitching extension with highest 10mm, upper thread section is transmitted towards sewing downside from sewing upside by sewing (15) first with sewing needle.Upper thread starting section (13a) is pulled out followed by shuttle (19), until whole upper threads starting section (13a) is in the lower section on the downside of sewing.Upper thread initial part section (13a) is caught and guided using upper thread catcher (40).Then upper thread initial part section (13a) is processed to produce stitching extension.
Description
Technical field
The present invention relates to a kind of side of the stitching starting upper thread for producing the expected stitching extension with highest 10mm
Method.The invention further relates to a kind of component for implementing this method and the sewing machine with this component.
Background technology
By 102 34 251 10 2,006 019 193 A1 and DE 101 23 of C1, DE of B1, DE of EP 1 847 641
075 C1 discloses this sewing machine.
The content of the invention
The purpose of the present invention is to propose a kind of method, is stretched out with desired, short expected stitching using the method achieve
The stitching starting upper thread in portion.Profit is wished to realize in this way, is avoided with reliability as big as possible：From the sewing portion through sewing
The viewable side divided can see that start line is stretched out outside the edge of sewing part.
The purpose is realized according to the present invention by the method with the feature for proposing in claim 1.
According to present invention recognizes that, following situation is possible：It is not only to rise upper thread when starting and producing stitching
Beginning section is pulled down through sewing --- and this is for example by DE 10234251C1, it is known that but can also be to being pulled down
Upper thread starting section guide and process, so as to produce desired less expected stitching extension.Produced expection
Stitching extension can be highest 9mm, can be highest 8mm, can be highest 7mm, even more small.
According to claim 2, cut-out upper thread initial part section directly generates small expected stitching extension.
According to claim 3, the upper thread starting section that clamping is booked ensure that：Make this when the needle tracking for most starting is performed
Body upper thread starting section more long is controllably positioned at the initiating terminal of stitching to be generated along stitching, and thus, upper thread rises
The extreme length that the initiating terminal of beginning section is stretched out outside stitching is stitch length.As long as ensuring highest in upper thread starting section
The stitch length of 10mm, just automatically realizes desired, small upper thread and is expected stitching extension.Upper thread capture clip can be with face
Line catcher is adjacent.Upper thread catcher can simultaneously used also as sewing machine shuttle/hook coil apparatus (Greifer), therefore
Can be that needle tracking forms instrument.It is likely to alternatively, upper thread catcher and shuttle are different accessaries of sewing machine.Upper thread capture clip
Can be formed by the clamping unit of itself, upper thread starting section is controllably transferred to the clamping list by means of upper thread catcher
In unit.This clamping unit can be arranged directly on upper thread catcher.This is alternative in, can be by two sheets in sewing machine
The component that there is forms clip, upper thread starting section is suitably imported into after being caught by upper thread catcher described two
Between component.This clip member can be bottom line spool and bottom line spool housing.
According to claim 4, the length for guiding the prespecified upper thread starting section of folder by upper thread is avoided：Upper thread starting
Section is undesirably long.Upper thread guiding folder can also be responsible for, actually pulled out by shuttle upper thread starting section and not from
Upper thread is pulled out again in upper thread section/upper thread extension (Oberfadenlauf) between sewing needle and upper thread storage device.
According to claim 5, less initial stitch length, such as one shorter initial needle tracking, two shorter rise
Beginning needle tracking or three shorter initial needle trackings are avoided：Upper thread starting section in guiding and treatment by conveyer undesirably
Drive, this may undesirably cause section of the upper thread with extension between sewing and pin hole middle outlet.
According to claim 6, upper thread stretching is adjusted by thread tensioner or upper thread is guided and realized：Can be adjustably advance
The guiding of regulation upper thread and upper thread treatment, this for example can be used for adapting to different material quality and/or different line qualities.Line
The regulation of tensioning apparatus may rely on design form or the effect of upper thread capture clip.Line tensioning dress can be optimized by this way
Put the collective effect with upper thread capture clip.
The advantage of component according to claim 7 is corresponded to above with reference in production method of the invention description
Hold.Shuttle and upper thread catcher can be same parts.Alternatively, shuttle and upper thread catcher can also be by being separated from each other
Part formed.
Upper thread knife according to claim 8 can realize the upper thread starting section for being assuredly shut off being booked.Upper thread knife can
To be machine part, it is formed as the part separated with another wire scraper for the cutting line on stitching end.Alternatively,
Upper thread knife can also be formed for the wire scraper in stitching end tangent line simultaneously.
The upper thread catcher and particularly upper thread knife installed according to claim 9 are realized, and the initial section of upper thread can be with
The motion of conveyer is independently directed and is cut off especially shortly.
The advantage of upper thread capture clip according to claim 10 is corresponded to and is associated ground with the capture clip step of production method
The content of explanation.Upper thread capture clip can be adjacent with upper thread catcher.In this case, upper thread capture clip can be installed equally
In the support for sewing conveyer.Upper thread capture clip can be by the spool of sewing machine and the collective effect of spool housing
Formed.
The arrangement of upper thread capture clip according to claim 11 simplifies the in check guiding of upper thread starting section.
The advantage of upper thread capture clip according to claim 12 is corresponded to above is pressing from both sides step in production method with guiding
The content for illustrating with being associated.
Advantage for thread tensioner according to claim 13 is also such.
Due to guiding folder and/or thread tensioner correspondingly prespecified by upper thread, can particularly avoid, be drawn out
Upper thread starting section it is long so that its when pulling out with the entanglement of bottom line.
Aspirator according to claim 14 is avoided, and cut-off the end of a thread is undesirably gathered in the region of sewing machine
In.
The advantage of sewing machine according to claim 15 is corresponded to above with reference to the production method and sewing component institute
The content of explanation.
Brief description of the drawings
Embodiments of the invention are described in detail below according to accompanying drawing.In figure：
Fig. 1 shows the front view of doubly-linked interlock seam sewing machine；
Fig. 2 shows the perspective diagram of the needle tracking forming region of sewing machine；
Fig. 3 shows the local top view of sewing machine with the engineer's scale for amplifying corresponding to the observation arrow III in Fig. 1, its
In show that needle tracking forms instrument and catches the situation of planar coil by shuttle tip in coil raised position；
Fig. 4 shows that the needle tracking in the instantaneous position after the position according to Fig. 3 forms work in the view of similar Fig. 3
Tool, wherein, shuttle tip has made free upper thread initiating terminal be pulled out completely from sewing；
Fig. 5 shows the instantaneous position after the position according to Fig. 4 in the view similar to Fig. 3, wherein, upper thread from
It is removed under the collective effect of upper thread catcher and upper thread-pairing knife by end；
Fig. 6 schematically shows the top view using the stitching sewed according to the sewing component of Fig. 3 to Fig. 5, for illustrating
Produced stitching starting upper thread is together with its prespecified expected stitching extension；
Fig. 7 is shown in the view similar to Fig. 3 to Fig. 5 for controllably guiding the upper thread being booked starting section
Another implementation method, wherein, upper thread starting section is sandwiched between the spool lid of bottom line spool and spool housing；With
Fig. 8 schematically shows the top view using the stitching sewed according to the sewing component of Fig. 7, produced by illustrating
Stitching starting upper thread together with its prespecified expected stitching extension.
Specific embodiment
Doubly-linked interlock seam sewing machine 1 has substrate 2 and the column 3 and angled arm 4 holded up from the substrate.The arm terminates
In head 5.Main shaft 6 is rotatably supported in arm 4.The main shaft drives crank driving mechanism 7 together with line bar 8 in head 5.It is bent
Handle transmission mechanism 7 is connected in a driving manner with the shank 9 axially displaceably supported in head 5.The shank is in its bottom
It is upper that there is pin 10.Pin 10 can be made to be moved up and down along vertical axes 11 by crank driving mechanism 7.
In order to simplify the display of position relationship, underneath with Cartesian xyz coordinate systems.Vertical axes 11 are along the coordinate system
Z directions extend.X directions extend internally and parallel to the sewing direction of sewing machine 1 perpendicular to the drawing plane of Fig. 1.Y-direction exists
Extend to the left in Fig. 1.
Pin 10 guides the needlework 13 conveyed by thread tensioner and line bar 8 from spool/spool 12, the needlework in eyelet
Also referred to as upper thread.Needlework 13 have free upper thread starting section 13a.
The support plate 14 that the supporting of substrate 2 is fixed using bolt, is placed with sewing part 15 on the support plate.Support plate 14
It is designed as the opening for having for passing through the shifting materials and parts 17 of lower section.Shifting materials and parts below this have the pin for passing through pin 10
Hole 18.Move materials and parts 17 in known manner with the promotion-for being arranged in the lower section of substrate 2 and lift transmission mechanism drive connection.
Shuttle 19 is located at the lower section of support plate 14, and the shuttle includes the shuttle body portion 20 with shuttle tip 21.In shuttle body
Spool housing 22 with tank shape in portion 20, the spool housing is used to receive the shuttle wire storage device of spool 22a forms.Spool shell
The top edge profile of body 22 and spool 22a is represented by dotted lines in the schematic diagram according to Fig. 2.Shuttle line is also referred to as bottom line.
Shuttle 19 can be rotated around shuttle axis 23 that is vertical, extending in the z-direction.The sewing operation in shuttle body portion 20-
Rotation direction 24 is in figure 3 the clockwise direction around shuttle axis 23.Shuttle body portion 20 is regularly connected with axle 25, the axle
It is coaxial with shuttle axis 23.Axle 25 is rotatably supported in the fulcrum bearing 26 being connected with substrate 2 using screw element.In the supporting
Drive shaft 27 is supported with seat, the drive shaft is connected with the gear drive of the inside for being arranged in fulcrum bearing 26.The gear is passed
Motivation structure has 1:2 gearratio, so as to when drive shaft 27 is rotated, the shuttle body portion 20 on axle 25 is in the way of twice
Rotate.Drive shaft 27 is connected in a driving manner by belt drive unit 28 with main shaft 6.
Wire scraper 29 is used to cut off needlework 13 and shuttle line in stitching end, and the wire scraper is for example by EP 1 847 641
Known to B1.
In order to keep and transmitting sewing part 15, sewing machine 1 extraly also has the conveyer 31 of presser feet 30 and top,
The collective effect of shifting materials and parts 17 of conveyer and lower section above this is for transmission sewing.
Schematical Fig. 2 also illustrates the extension situation of the initial section 13a from spool 12 to upper thread of upper thread 13.Upper thread 13 is from line
Cylinder 12 to set out and be directed to pin 10 by thread tensioner 32 and line bar 8 and upper thread guiding folder 33.
Upper thread guiding folder 33 has tensioning wheel 34, and the tensioning wheel is fixed on guiding bar 35.Tensioning is made by stage clip 36
Wheel 34 is pulled to the bearing 37 being fixed on housing of upper thread guiding folder 33, so as to clamp upper thread 13.It is provided with bearing 37
The electromagnet 38 for schematically showing in fig. 2, side of the electromagnet by the CCU 39 of sewing machine 1 not to be shown specifically
Formula is manipulated.
Below, a kind of implementation method of sewing machine-component is described according to Fig. 3 to Fig. 5, the sewing machine-component is used to produce
Stitching-the start line of the raw expected stitching extension with highest 10mm.
Sewing machine-component has the upper thread catcher 40 for catching upper thread 13.Upper thread catcher 40 is in its free end
It is upper that there is catching hole41 (also reference can be made to Fig. 5), the catching hole is used as movable upper thread knife simultaneously.Upper thread catches
The free end of device 40 extends in the initial position shown in Fig. 3 below the shifting materials and parts 17 of lower section, wherein, catching hole 41 and pin
Align in hole 18.Upper thread catcher 40 is had the matrix 42 of L-shaped bending and is supported by oscillating support 43.Oscillating support 43
Can be in the way of being fixed on housing or alternatively the conveyer support 44 regularly with the shifting materials and parts 17 of lower section is connected.By
In oscillating support 43 can make the matrix 42 of upper thread catcher 40 around axis of oscillation 45 the initial position according to Fig. 3 with cut
Moved between disconnected-terminal location.Fig. 5 shows the centre position of matrix 42 between initial position and cut-out-terminal location.Swing
Axis 45 extends parallel to z directions.Upper thread catcher 40 is activated by pneumatic drive device, and the pneumatic drive device is attached
Not shown in figure and it is bonded on the actuation aperture 46 in matrix 42, the actuation aperture is designed as in matrix 42 and axis of oscillation
45 are spaced apart.
A kind of stitching starting for producing the expected stitching extension with highest 10mm is described below according to Fig. 3 to 5
The method of upper thread.
Fig. 3 shows that the needle tracking of sewing machine 1 in coil raised position forms instrument.Sewing needle 10 has been moved off its lower dead center
And moved up along positive z-axis direction, until foring planar coil 47.In the instantaneous position according to Fig. 3, shuttle tip
21 are joined in the planar coil 47.Upper thread catcher 40 is in initial position, wherein, planar coil 47 is formed in upper thread catcher 40
Catching hole 41 lower section.Planar coil 47 forms a upper thread section, the upper thread section is passed through the quilt of sewing 15 using sewing needle 10
The downside of the sewing is sent to from the upside of the sewing.
Catching hole 41 with very small spacing shifting materials and parts 17 disposed below below.This is smaller than 1mm.
Free upper thread starting section 13a still stretches out from sewing 15 upwards in the instantaneous position according to Fig. 3.
Fig. 2 shows the shuttle rotation instantaneous position of the short time after the position according to Fig. 3.
Fig. 4 shows that the needle tracking after the shuttle rotation compared with Fig. 3 more than 180 ° forms instrument instantaneous position.Shuttle tip
21 make upper thread starting section 13a be pulled out downwards completely through sewing 15 in this rotation.Upper thread starting section 13a is herein
It is passed down through pin hole 18 and catching hole 41.Upper thread 13 is between shuttle tip 21 and pin hole 18 in the top of shuttle 19 and wire scraper
29 lower section extends and first passes through catching hole 41 from below relative to sewing and then across the pin moved down in materials and parts 17
Hole 18.Also just it is drawn out upper thread starting section 13a using shuttle 19, until whole upper thread starting section 13a is all in line
The lower section of mark-downside.
During shuttle tip 21 pulls out upper thread starting section 13a, upper thread is set to guide folder 33 to be closed, therefore in upper thread row
In journey no longer upper thread 13 can be pulled out before upper thread guiding folder 33 from upper thread storage device.Upper thread starting is pulled out at shuttle tip 21
After section 13a, upper thread is set to guide folder 33 to open.
In the short time that Fig. 5 shows before cut-out upper thread initial part section 13a the initial position according to Fig. 3 and Fig. 4 with
The centre position of the matrix 42 of the upper thread catcher 40 between cut-out-terminal location.When matrix 42 swings, upper thread catcher 40
Upper thread 13 is caught for shortening upper thread starting section 13a by catching hole 41.In the position according to Fig. 5, catching hole 41
Edge rib is as the collective effect of pairing knife 48 being fixed on housing of upper thread knife and component for cut-out upper thread 13.In basis
In the instantaneous position of Fig. 5, the upward out pin hole 18 of pin 10.
Used as the result of this cutting-off process, upper thread 13 is shortened by regulation.The free end of upper thread starting section 13a exists
Stitching initiating terminal is in the length up to 10mm on sewing part 15.This residue length of upper thread starting section 13a can be with
Less than 10mm, it is possible to be 9mm, 8mm or can also be 7mm and also can also be smaller.
Using upper thread knife 41, cut-out upper thread 13 is that the upper thread being booked is guided using upper thread catcher 40 at pairing knife 48
The final result of initial section 13a and it is achieved thereby that the manufacture of upper thread starting section 13a, obtains final product desired, highest
The upper thread starting section 13a stitching extensions of 10mm.
Now, the bottom line that can be shown specifically in upper thread 13 and in Fig. 1 to Fig. 5 realizes stitching in the case of participating in,
It is doubly-linked eyelet.In stitching end, the tangent line process of upper thread 13 and bottom line is carried out followed by wire scraper 29.
Can be in the root during starting sewing and particularly during cut-out upper thread initial part section 13a by means of control device 39
Stitch length is obtained according to the order of Fig. 3 to Fig. 5.This avoids moving between materials and parts 17 and upper thread starting section 13a in lower section
Undesirable relative motion.
The utilization that vertical view according to Fig. 6 is illustrated in online mark-starting section is produced according to the sewing component of Fig. 3 to Fig. 5
Stitching 48a.Sewing direction extends to the left in figure 6 in the x-direction.Based on the upper thread portion between upper thread knife 41 and pairing knife 48
Section, the upper thread starting section 13a at stitching 48a initiating terminals is short to, and realizes the maximum stitching extension A of 10mm.
It is also shown in figure 6, two for most starting starting-needle tracking S1、S2Relative to needle tracking S below3,…SnShorten.
Below according to another implementation method of Fig. 7 description sewing components, it is used to produce the expection with highest 10mm
The stitching of stitching extension-starting section.The part corresponding with the part illustrated above with reference to Fig. 1 to Fig. 5 has identical
Reference and no longer describe in detail.
Component according to Fig. 7 also has the lifting for schematically showing in figure 6 in addition to the part according to Fig. 1 to Fig. 5
Device 49.Lifting device 49 can be designed as pneumatic linear actuator.Lifting device 49 can be manipulated by CCU 39.Lifting device
49 are arranged between the bottom of spool housing 22 and the lower bottom wall of spool 22a.Spool 22a phases can be realized by lifting device 49
Moved along the lifting of mobile route 50 for spool housing 22, the mobile route is represented in fig. 2.In spool 22a relative to line
In the position of the lifting of cylinder shell 22, the tegmental wall 51 of spool 22a in upside of the edge side relative to online cylinder shell 22 towards
The spool receptacle 52 of the tegmental wall is protruded more than 0.5mm, is greater than 1mm.
The upper thread initial part that the shuttle tip 21 of upper thread catcher is caught is expressed as in order to controllably guide and process
Section 13a is to obtain the desired expected stitching extension of highest 10mm, and the component according to Fig. 7 is operated as follows：
In terms of catching the planar coil in the formation of planar coil 47 and using shuttle tip 21, the component according to Fig. 7 is first such as
It is operated with reference to described in Fig. 1 to Fig. 3.
When the instantaneous position corresponding to Fig. 3 is reached, lifting device 49 is activated, so that spool 22a protrudes from spool housing
22 top edge.Shuttle tip 21 then pulls out upper thread 13 and corresponds in the implementation method institute above in conjunction with Fig. 1 to Fig. 5 downwards
Explanatorily upper thread starting section 13a is pulled through sewing part 15.In the implementation method according to Fig. 7, upper thread starting section 13a
Because spool 22a tegmental walls 51 are located between tegmental wall 51 and spool housing 22 relative to the protrusion of spool housing 22, such as Fig. 7 institutes
Show.So, a section of upper thread 13 is located in spool 22a.
According to the instantaneous position at the shuttle tip 21 of Fig. 7 or move on 45 ° shuttle tip 21 rotation positions
In, lifting device 49 enters its initial position, so that spool 22a is reduced to the rotine positioning in its online cylinder shell 22 again.
Upper thread starting section 13a is then clamped between spool 22a and spool housing 22.So, by spool 22a and spool housing 22
Form upper thread capture clip.
If forming follow-up after the instantaneous position according to Fig. 7 and after upper thread starting section 13a is clamped
Needle tracking, then upper thread starting section 13a in ensuing sewing process by step by step from upper thread capture clip 22a, 22 pull out, its
In, upper thread starting section 13a and the upper thread section directly guided from top through pin hole 18 from sewing part 15 are twined by bottom line
Knotted jointly during around and formation stitching.The free initiating terminal of upper thread starting section 13a can then have stitch length model
Length in enclosing.If stitch length is designed to highest 10mm, highest 10mm can be obtained by upper thread starting section 13a
Desired expected stitching extension.
Fig. 8 shows stitching 48b, and the stitching is utilized and produced according to the sewing component of Fig. 7.Section 13a is in stitching for upper thread starting
It is not to be in away from stitching 48b at stitching initiating terminal in 48b, but in needle tracking SiWith Si+1Between.I's is sized depending on
The length of the upper thread starting section 13a of the pull-out of the lower section of sewing part 15, upper thread starting section in sewing by step by step from
Pulled out in clamped condition between spool 22a and spool housing 22.I can for example in 4 to 10 scope.In stitching 48b
In, the stitching extension A of upper thread starting section 13a is also highest 10mm.
Upper thread guiding folder 33 can be cancelled in a flexible program of sewing component.By setting line tension --- the line
Power is applied on upper thread 13 by thread tensioner 32 --- then obtained when pulling out and/or guiding upper thread initial part section 13a
The length ruler of upper thread 13 that the length dimension of upper thread 13 pulled out from upper thread starting section 13a is pulled out with the upper thread section from before sewing needle 10
Desired relation between very little.Line tension is set stronger, then the length dimension for pulling out from upper thread starting section 13a relative to
The ratio of the length dimension of upper thread 13 provided by thread tensioner 32 is bigger.
Sewing component extraly can also have the aspirator 53 for schematically showing in Figure 5, and face is utilized for aspirating
The upper thread section of the cut-out of line knife 41.Aspirator 53 is adjacent with the cutting arris of pairing knife 48.Aspirator 53 connects with negative pressure source
Connect.
In the another of component that sew of the stitching-starting section for producing the expected stitching extension with highest 10mm
In individual modification, the upper thread catcher 40 with catching hole 41 can also be used in the case of without pairing knife.So, upper thread is caught
Device 40 and upper thread capture clip collective effect are caught, the upper thread capture clip is as described above between spool 22a and spool housing 22
The clamping device of formation.The upper thread capture clip can be adjacent with upper thread catcher 40.
In the modification of sewing component, upper thread starting section 13a is not cut-off, but by controllably guiding
Mode and stitching-starting section suture, such as above in conjunction with Fig. 7 and Fig. 8 explanatorily.In the sewing process, can be by being used for
Stitching, catching hole 41 the realization that is synchronized with the movement is formed along +/- y directions：Upper thread starting section 13a is drawing from upper thread capture clip
By little by little to the right (- y directions) and (+y directions) is placed into pin hole to the left in the case of going out, so that it is arranged on phase all the time
Sew below the needle tracking answered and below.In order to ensure so setting upper thread initial part section 13a along +/- y directions, pin hole 18
Side --- upper thread initial part section 13a is guided when starting-stitching section is sewed by the side --- can be with linearly extended
Mode is formed, that is to say, that not circular bend.
Claims (15)
1. a kind of method for producing stitching starting upper thread, the stitching starting upper thread theory-stitching with highest 10mm is stretched
Go out portion, the method has steps of：
- upper thread section (47) is sent to sewing downside from sewing upside through sewing (15) using sewing needle (10),
- upper thread starting section (13a) is pulled out using shuttle (19), until whole upper threads starting section (13a) is under sewing
The lower section of side,
- using upper thread catcher (21；40) upper thread starting section (13a) is caught,
- using upper thread catcher (21；40) guide upper thread initial part section (13a) and upper thread initial part section (13a) is processed
To produce stitching extension (A).
2. method according to claim 1, it is characterised in that the upper thread initial part being booked using upper thread knife (41) cut-out
Section (13a) is producing stitching extension (A).
3. method according to claim 1, it is characterised in that the face being booked is clamped using upper thread capture clip (22a, 22)
Line starting section (13a) is producing stitching extension (A).
4. according to the method in any one of claims 1 to 3, it is characterised in that the length of upper thread starting section (13a) is led to
Crossing upper thread guides folder (33) prespecified, in upper thread section of the upper thread guiding folder in front of sewing needle (10).
5. method according to any one of claim 1 to 4, it is characterised in that passing through upper thread starting section (13a)
The pin hole (18) of sewing conveyer (17) is guided through after sewing (15), perform has initial stitch length (S herein1、
S2) manufacture method, the initial stitch length less than produce stitching when general-stitch length (S3)。
6. method according to any one of claim 1 to 5, it is characterised in that to the upper thread section before sewing needle (10)
In thread tensioner (32) set so that when pulling out and/or guiding upper thread initial part section (13a) to following length ruler
It is very little to realize desired relation：
The length dimension of-the upper thread (13) pulled out from upper thread starting section (13a), and
The length dimension of-the upper thread (13) pulled out from the upper thread section before sewing needle (10).
7. a kind of component for implementing method according to any one of claim 1 to 6, including：
- powered shank (9) and the sewing needle (10) carried by it, the sewing needle are used to guide upper thread (13),
- shuttle (19),
- for catching the upper thread catcher (21 of upper thread (13)；40).
8. component according to claim 7, it is characterised in that including for cutting off the upper thread being booked starting section
The upper thread knife (41) of (13a).
9. the component according to claim 7 or 8, it is characterised in that including sewing conveyer (17), wherein, upper thread is caught
Catch device (40) and be installed in support (44) for sewing conveyer (17).
10. the component according to any one of claim 7 to 9, it is characterised in that including for clamping the upper thread being booked
The upper thread capture clip (22a, 22) of initial section (13a).
11. components according to claim 10, it is characterised in that upper thread capture clip (22a, 22) and upper thread catcher (21)
It is adjacent.
12. component according to any one of claim 7 to 11, it is characterised in that including being risen for prespecified upper thread
Upper thread guiding folder (33) of the length of beginning section (13a), in upper thread section of the upper thread guiding folder before sewing needle (10).
13. component according to any one of claim 7 to 12, it is characterised in that be included in the face before sewing needle (10)
The thread tensioner (32) that can be adjusted in line segment.
14. components according to claim 8, it is characterised in that including the suction for aspirating cut-off upper thread section
Device (53).
A kind of 15. sewing machines of the component with according to any one of claim 7 to 14.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102015223194.1 | 2015-11-24 | ||
| DE102015223194.1A DE102015223194B3 (en) | 2015-11-24 | 2015-11-24 | A method for creating a seam beginning upper thread with short target seam projection and assembly for performing the method |
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| Publication Number | Publication Date |
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| CN106757847A true CN106757847A (en) | 2017-05-31 |
| CN106757847B CN106757847B (en) | 2020-09-08 |
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| CN201611037467.9A Active CN106757847B (en) | 2015-11-24 | 2016-11-23 | Method for producing a stitch starting upper thread and assembly for carrying out the method |
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| Country | Link |
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| EP (1) | EP3176296B1 (en) |
| JP (1) | JP6975533B2 (en) |
| KR (1) | KR102557765B1 (en) |
| CN (1) | CN106757847B (en) |
| DE (1) | DE102015223194B3 (en) |
| TW (1) | TWI753871B (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| DE102017207626A1 (en) * | 2017-05-05 | 2018-11-08 | Dürkopp Adler AG | Method for producing a seam end lower thread with a predetermined desired seam protrusion |
| DE102017207627A1 (en) * | 2017-05-05 | 2018-11-08 | Dürkopp Adler AG | Assembly for creating a seam beginning upper thread with a desired seam projection |
| CN109457409A (en) * | 2018-11-28 | 2019-03-12 | 杰克缝纫机股份有限公司 | The Yarn taking-up mechanism and sewing machine of use in sewing machine |
| CN109402885A (en) * | 2018-11-28 | 2019-03-01 | 杰克缝纫机股份有限公司 | The Yarn taking-up mechanism and sewing machine of use in sewing machine |
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| DE202006009410U1 (en) * | 2006-04-21 | 2007-08-30 | Dürkopp Adler AG | Thread-pulling knife for a sewing machine |
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2015
- 2015-11-24 DE DE102015223194.1A patent/DE102015223194B3/en active Active
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2016
- 2016-11-09 EP EP16197995.0A patent/EP3176296B1/en active Active
- 2016-11-22 KR KR1020160155622A patent/KR102557765B1/en active IP Right Grant
- 2016-11-22 JP JP2016226656A patent/JP6975533B2/en active Active
- 2016-11-23 TW TW105138395A patent/TWI753871B/en active
- 2016-11-23 CN CN201611037467.9A patent/CN106757847B/en active Active
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| US4658752A (en) * | 1985-04-16 | 1987-04-21 | Kochs Adler, Ag | Method and apparatus for drawing a needle thread through a workpiece |
| DE19746653C1 (en) * | 1997-10-22 | 1998-11-12 | Pfaff Ag G M | Sewing machine thread cutting |
| US20050178307A1 (en) * | 2002-03-06 | 2005-08-18 | Frazer James T. | Multiple horizontal needle quilting machine and method |
| CN101058922A (en) * | 2006-04-21 | 2007-10-24 | 杜尔克普-阿德勒股份公司 | Lock-type chain stitch sewing machine |
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Also Published As
| Publication number | Publication date |
|---|---|
| DE102015223194B3 (en) | 2017-02-23 |
| TWI753871B (en) | 2022-02-01 |
| KR102557765B1 (en) | 2023-07-19 |
| CN106757847B (en) | 2020-09-08 |
| TW201726999A (en) | 2017-08-01 |
| JP6975533B2 (en) | 2021-12-01 |
| EP3176296A1 (en) | 2017-06-07 |
| JP2017099875A (en) | 2017-06-08 |
| KR20170060590A (en) | 2017-06-01 |
| EP3176296B1 (en) | 2019-08-21 |
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