CN101072910A - Operating method of an embroidering machine - Google Patents

Abstract

The present invention relates to an operating method of an embroidering machine comprising a thread feeder, a needle working unit having a needle, a thread feeding unit forming a thread transferring path and having an upper thread feeder and a threader, a cut -thread sensor to sense whether the upper thread is cut, and a cutting unit to cut the upper thread, the operating method comprising controlling the cut -thread sensor to sense whether the upper thread is cut; stopping the needle working unit to operate; recovering the cut upper thread from the needle working unit; and driving the upper thread feeder to feed the needle working unit with a new upper thread to be threaded through the needle. Thus, it is possible to reduce time taken to feed a needle working unit with an upper thread when the upper thread is cut, thereby enhancing productivity and implementing an automation system thereof .

Description

The method of operating of embroidery machine

Technical field

The present invention relates to a kind of method of operating of embroidery machine, more specifically, relate to a kind of method of operating of embroidery machine, whether its detection line in operation disconnects, and shut-down operation when line disconnects, thereby automatically new upper thread is passed the pinprick of pin.

Background technology

Usually, automatic embroidering machine comprises: the head (head stem) that is arranged on the installation frame front; Be installed on the head and the versicolor upper thread on a plurality of bobbins carried out according to the direction of embroidery work the line feeder of feed; And the upper thread swage of passing through to supply is to carry out the pin working cell of embroidery work.

In addition, according to the quantity that is installed to the pin on line feeder and the pin working cell, automatic embroidering machine is divided into single needle type and spininess type.

Single needle type automatic embroidering machine is supplied with single pin working cell with one in the multiple color upper thread on a plurality of bobbins and is carried out embroidery work.

Spininess type automatic embroidering machine is supplied with a plurality of pins working cell with the upper thread of the multiple color on a plurality of bobbins and is carried out embroidery work.

Below, single needle type automatic embroidering machine is described on example ground.

In traditional single needle type automatic embroidering machine, a upper thread of selecting the multiple color upper thread from a plurality of bobbins is process and burden tension adjustment body by line feed unit the time, so that regulate its tension force.Then, this upper thread is held in the online pickup unit, moves to pin, and passes pinprick by type needle-threading device, and this type needle-threading device has the hook that can pass pinprick.Here, when suture needle, the reciprocating motion in presumptive area of line pickup unit is to strengthen and to discharge the tension force of upper thread.

Simultaneously, under the situation that upper thread disconnects during working properly the carrying out of embroidery, predetermined sensor detects the upper thread disconnection and stops embroidery machine.At this moment, the user manually passes pinprick with upper thread, perhaps manually upper thread is sent to the spare space of line feed unit, so that send the upper thread that disconnects to pin, restarts embroidery machine then.

Yet in this traditional automatic embroidering machine, when upper thread disconnected during working properly the carrying out of embroidery, in order to supply with the pin that upper thread disconnects once more, the user will manually pass pinprick with upper thread, restarts embroidery machine then.Therefore, take the considerable time new upper thread is passed pinprick and restarts embroidery machine, promptly replace the upper thread that disconnects, thereby traditional embroidery machine reduce productivity ratio, and be difficult to realize automated system with new upper thread.

Summary of the invention

Therefore, an aspect of of the present present invention provides a kind of method of operating of embroidery machine, and it can reduce the required time of pin working cell that feed has upper thread when upper thread disconnects, thereby has improved productivity ratio and realized its automated system.

Above-mentioned and others of the present invention realize that by the method for operating that a kind of embroidery machine is provided described embroidery machine comprises: the line feeder; Pin working cell, this pin working cell have the pin that is installed with from the upper thread of line feeder supply, and carry out sewing operation; Line feed unit, this line feed unit form the predetermined line transport path from the line feeder to the pin working cell, and have and be used to supply the upper thread feeder of upper thread and the type needle-threading device that uses this upper thread swage; Whether line-breakage sensor, this line-breakage sensor are used to detect the upper thread that transport path along the line carries and disconnect; And cut cells, this cut cells is used for the upper thread on the shear line transport path, and whether described method of operating comprises: control described line-breakage sensor detection upper thread and disconnect; Stop the operation of described pin working cell; Recover the upper thread of disconnection from described pin working cell; And drive described upper thread feeder, for the new upper thread of described pin working cell feed with swage.

According to a further aspect in the invention, described method of operating also is included in and stops after the described pin working cell, drives described cut cells and shears the upper thread that disconnects.

According to a further aspect in the invention, described method of operating also is included in ew line and has threaded after the pin, drives described pin working cell and makes described pin carry out sewing operation.

Description of drawings

Fig. 1 is the perspective view according to the embroidery machine of embodiment of the present invention.

Fig. 2 is the perspective schematic view of drive part among Fig. 1.

Fig. 3 is the control block diagram of embroidery machine among Fig. 1.

Fig. 4 is the control flow chart of embroidery machine among Fig. 1.

Fig. 5 is the schematic side elevation according to the line tension adjuster of the embroidery machine of embodiment of the present invention.

Fig. 6 is the local enlarged perspective of Fig. 5 center line tension regulator.

Fig. 7 is the decomposition diagram of Fig. 6.

Fig. 8 A, 8B, 9A and 9B are local enlarged perspective and the side views that shows the process on the line tension adjuster that upper thread is wrapped in.

Figure 10 is the enlarged perspective according to the line retrieval unit of the embroidery machine of embodiment of the present invention.

Figure 11 is the side view of Figure 10.

Figure 12 A to 12C is the plane that display line pickup unit and line take out the operation between the bar.

Figure 13 is the local enlarged perspective of the state that shows that when the line pickup unit is positioned at bottom dead centre line is kept by the line pickup unit.

Figure 14 is the local enlarged perspective of the state that shows that when the line pickup unit is positioned at top dead-centre line is kept by the line pickup unit.

Figure 15 is the decomposition diagram according to the swage unit of the embroidery machine of embodiment of the present invention.

Figure 16 is that decomposition diagram is amplified in the part of Figure 15.

Figure 17 to 20 is the perspective views that show the swage operation of swage unit among Figure 15.

Figure 21 is the enlarged perspective when the swage operation is finished in the swage unit among Figure 15.

Figure 22 and 23 is the fragmentary, perspective views of operation that show the line supply unit of swage unit.

Figure 24 is the fragmentary, perspective view when the line supply unit complete operation of swage unit.

Figure 25 to 27 is the side schematic sectional view that are presented at according to shearing the process of upper thread in the embroidery machine of embodiment of the present invention successively.

The specific embodiment

Below, embodiments of the present invention are described with reference to the accompanying drawings.

As shown in Figure 1 to Figure 3, embroidery machine 1 according to the present invention comprises: installation frame 5; Be arranged on the head 7 of installation frame 5 fronts; Line feeder 10, this line feeder 10 is installed on the head 7, and a upper thread will selecting from many upper threads on a plurality of bobbins of the multiple color of correspondence is supplied to pin 21; Pin working cell 20, this pin working cell 20 has the pin 21 that is installed with upper thread 3, and carries out the sewing operation of pin 21; Line feed unit, this line feed unit will be supplied to pin working cell 20 from the upper thread 3 of line feeder 10, and upper thread 3 is passed pin 21; Whether line-breakage sensor 240, this line-breakage sensor 240 are used to detect the upper thread 3 that transport path along the line moves and disconnect; And cut cells 270, the upper thread 3 on these cut cells 270 shear line transport paths.

Installation frame 5 is seated on the horizontal plane as on the ground, perhaps is installed on wall, other machinery or the analog, thereby supports head 7 and analog.

Head 7 is preferably formed the shape into approximate rectangular plate, with in its front support line feeder 10 and line feed unit.Replacedly, head can have different shape.

Line feeder 10 comprises: line feed piece 11, and this line feed piece 11 is formed with a plurality of line standby pipes 11a, and the end of the upper thread of carrying from a plurality of bobbins 3 is contained in this line standby pipes 11a with standby; A plurality of tube connectors 13, this tube connector 13 place online feed piece 11 below, and be communicated with separately line standby pipes 11a; Line back-up block 15, this line back-up block 15 supports a plurality of tube connectors 13, and is formed with the single line feed path 15a that is communicated with a plurality of tube connectors 13; Line bootstrap block 17, this line bootstrap block 17 be provided with online back-up block 15 below, and the line path of navigation 17a that is communicated with line feed path 15a of formation; And source of the gas (not shown), this source of the gas is arranged to be communicated with each line standby pipes 11a in the line feed piece 11, and optionally to line standby pipes 11a inject high pressure air, thereby a upper thread feed optionally will holding in the upper thread among the online standby pipes 11a is given pin working cell 20.

In addition, line feeder 10 preferably includes auxiliary source of the gas (not shown), should be connected to line back-up block 15 by auxiliary source of the gas, and injection air is given pin working cell 20 so that will pass upper thread 3 feeds of carrying through line back-up block 15 and line bootstrap block 17 in the lump of tube connector 13.

Pin working cell 20 comprises: single pin 21, but these pin 21 reciprocating motions be arranged on head 7 below, and upper thread 3 passes this pin 21 to carry out embroidery work; And the presser feet (not shown), when pin 21 was carried out sewing work, this presser feet was pushed down the embroidery part along the moving direction of pin 21.Pin 21 is installed on the shank 25, and shank 25 is by shank driver 27 reciprocating motion in predetermined sewing work zone.Here, shank 25 is connected to each other by clutch with shank driver 27 or separates, thereby the connection of the reciprocating motion of shank 21 by clutch passes to shank 25, thereby allows pin 21 reciprocating motion and carry out sewing work in the sewing work zone.

Line feed unit comprises: upper thread feeder, this upper thread feeder form the predetermined line transport path from line feeder 10 to pin working cell 20, and feed upper thread 3; And type needle-threading device 140, this type needle-threading device 140 passes pin 21 with upper thread 3.

The upper thread feeder comprises: line tension adjuster 31, and this line tension adjuster 31 is provided with on the online transport path, and regulates the tension force of the upper thread of carrying to pin 21 3; Line pickup unit 60, this line pickup unit 60 pick up the tension force of upper thread 3 and reinforcement/release upper thread 3; And line retrieval unit 80, this line retrieval unit 80 takes out the upper thread 3 on the line transport path and holds it on the line pickup unit 60.

Extremely shown in Figure 9 as Fig. 5, line tension adjuster 31 is provided with between online back-up block 15 and the line bootstrap block 17, and comprise: line tension control agent 32, this line tension control agent 32 are wound into upper thread 3 parts on the line tension control agent 32 and contact with it, to regulate the tension force of upper thread 3; And line winding unit 35, this line twines the fixing and rotation that unit 35 keeps upper threads 3, so that upper thread 3 is wrapped on the line tension control agent 32.

The shape of line tension control agent 32 formation dishes, and be formed with along the line contact portion 33 of its circumference fluting, upper thread 3 parts are wrapped on this line contact portion 33.Line tension control agent 32 holds the pockets 39 interior (back description) of online winding unit 35.During when upper thread 3 contact wire contact portions 33 and through line contact portion 33, line contact portion 33 produces resistance, thereby regulates the tension force of upper thread 3.Simultaneously, line tension control agent 32 is rotatably connected to second rotating shaft 123 (back description).

Below the online back-up block 15 of line winding unit 35 placements, and integral body is connected to second rotating shaft 123 and rotation therewith.In addition, the spaced apart preset distance of mobile route of the axis of second rotating shaft 123 and upper thread 3.And line twines unit 35 and connects formation cable modem hole, and this line three-way hole is used to keep upper thread 3 as retainer 37.

In addition, line twines unit 35 and is formed with pockets 39 holding line tension control agent 32, and rotates by master driver 100 (back descriptions), thereby upper thread 3 parts is wound on the line contact portion 33 of line tension control agent 32.

Line twines unit 35 and is connected to the converter that rotatablely moves (back description), and with respect to 32 rotations of line tension control agent, thereby allow upper thread 3 to be wound on the line tension control agent 32.

As described in Figure 10 to Figure 14, line pickup unit 60 comprises: the arm 61 that vibrates between top dead-centre and bottom dead centre; Be formed with opening 65 and be arranged in the presumptive area of arm 61 to keep the wire maintainer 63 of upper thread 3; And the arm driver 75 that is used for actuating arm 61 vibrations.

Arm 61 is driven by arm driver 75, to vibrate between the top dead-centre of online transport path front and the bottom dead centre.Here, hydraulic cylinder, motor, cam gear, spiral piping arrangement or analog can be used in the arm driver 75.

Wire maintainer 63 is arranged in the free end of arm 61, and along with arm 61 vibrates between top dead-centre and bottom dead centre.Wire maintainer 63 forms opening 65 to keep upper thread 3.

In addition, wire maintainer 63 comprises that fin 67 breaks away from the upper thread 3 that prevents to remain in the opening 65.Here, fin 67 is rotatably connected to the near zone of the opening 65 of wire maintainer 63, is used to open and close opening 65.In addition, a side of fin 67 is by fin Flexible element 69 resiliency supported in the wire maintainer 63.Fin Flexible element 69 elasticity compressing fin 67 is to close opening 65.According to this embodiment, shown wind spring is as fin Flexible element 69, but is not limited thereto.Replacedly, leaf spring, helical spring etc. and wind spring can both be used as fin Flexible element 69.In addition, when fin 67 rotated by fin Flexible element 69 and closes opening 65, the free end of fin 67 stopped by the tab stops in the open area that is arranged on wire maintainer 63 71 and no longer rotation.

Therefore, fin 67 is opened opening 65 when line taking-up bar 81 (describing in the back) is oppressed, and breaks away from the upper thread 3 that prevents to remain in the opening 65 by fin Flexible element 69 closing any openings 65.

Line retrieval unit 80 comprises: line takes out bar 81, and this line takes out bar 81 and remains on reciprocating motion between the line holding position the wire maintainer 63 at the extracting position that upper thread 3 is taken out from the line transport path and with upper thread 3; And rotatably Support Level is taken out the taking-up shaft bar 91 of bar 81.

Line take out bar 81 along cutting out section with straight reciprocating motion, described cutting out section is to become predetermined angular cutting to form with the mobile route of upper thread 3 in the presumptive area of online bootstrap block 17.Line takes out that bar 81 comprises toward each other and a pair of maintenance end 83a and the 83b of spaced apart preset distance.For convenience, place the retainer of upside will be called as maintenance end 83a, place the retainer of downside will be called as maintenance end 83b down.Upper and lower maintenance end 83a and 83b have formed fin holding portion 87 to hold fin 67 with the following taking-up shaft bar 91 that will illustrate.In addition, upper and lower maintenance end 83a and 83b are formed with line three-way hole 85a and the 85b that allows upper thread 3 pass respectively, thereby keep upper thread 3.

Therefore, becoming on the plane of predetermined angular with the line transport path, it is straight mobile towards the wire maintainer 63 that places the bottom dead centre place with straight line that line takes out bar 81, and keep upper thread 3, thereby upper thread 3 is put in the wire maintainer 63.

It is tabular taking out shaft bar 91, and takes out bar 81 with line and oppress the opening 65 of fin 67 to open line pickup unit 60, thereby upper thread 3 is contained in the opening 65.In addition, take out the maintenance end 83a of the placement line taking-up bar 81 on the shaft bar 91 and the surface of 83b and be provided with outline portion (profile part) 93.Therefore, fin 67 contact profile part 93 slidably.Outline portion 93 comprises: straight line movable part 93a, and this straight line movable part 93a and the parallel formation of straight line moving direction that keeps end 83a and 83b, and the fin 67 that allows to be contained in the fin holding portion 87 moves with straight line; And horizontal movable part 93b, this horizontal movable part 93b extends from straight line movable part 93a, and becomes predetermined angular laterally to form with the straight line moving direction that keeps end 83a and 83b.In addition, taking out shaft bar 91 flexibly supports by taking out bar Flexible element (not shown).Take out the compressing of bar Flexible element and take out shaft bar 91, oppress the fin 67 that is contained in the fin holding portion 87 with elasticity.

Therefore, line takes out bar 81 and takes out shaft bar 91 and is connected to linear converter (describing in the back), and reciprocating motion between the extracting position of upper thread 3 and line holding position.

Simultaneously, embroidery machine 1 according to the present invention comprises: master driver 100, this master driver 100 are used for rotational line and twine unit 35, and make line take out bar 81 reciprocating motions; Lifting linking member 105, this lifting linking member 105 is connected to master driver 100, and is driven and rising and decline by master driver 100; The converter that rotatablely moves, this converter that rotatablely moves converts the driving operation of master driver 100 to and rotatablely moves, and twines unit 35 so that upper thread 3 is wrapped on the line tension control agent 32 with respect to line tension control agent 32 rotational lines; And linear converter, this linear converter converts the driving operation of master driver 100 to rectilinear motion, and portable cord takes out bar 81 so that upper thread 3 is remained on the wire maintainer 63.

In this embodiment, hydraulic cylinder is as master driver 100.

Hydraulic cylinder comprises cylinder body 101, and by the operation of cylinder body 101 piston rod 103 of reciprocating motion to stretch out and to withdraw.Cylinder body 101 is supported by head 7, and piston rod 103 is spaced apart and parallel with lifting linking member 105.In the present invention, hydraulic cylinder is used as master driver 100, but is not limited thereto.Replacedly, motor or analog and hydraulic cylinder can both be used as master driver 100.

Lifting linking member 105 is upright, and is simultaneously spaced apart and parallel with cylinder body 101.In addition, provide connecting rod 107 to connect piston rod 103 and lifting linking member 105.Connecting rod 107 is supported by the free end of piston rod 103 and first end of lifting linking member 105.

The converter that rotatablely moves comprises: drive pin 111, and this drive pin 111 goes out from first distal process of lifting linking member 105; Driving cam 113, this driving cam 113 is formed with predetermined cam contour 115, so that mesh movably with drive pin 111 and connect rotationally with first rotating shaft 117; And power transfer unit, this power transfer unit passes to line with rotatablely moving of driving cam 113 and twines unit 35.

Driving cam 113 is connected to first rotating shaft 117, and first rotating shaft 117 can be rotatably set in the support frame 8 that is supported by head 7.The cam contour 115 of driving cam 113 allows driving cam 113 to rotate at first direction, and comprise rising outline portion and decline outline portion, rise along driving cam 113 at rising outline portion drive pin 111 when lifting linking member 105 moves up, descend along driving cam 113 at decline outline portion drive pin 111 when lifting linking member 105 moves down.Preferably, driving cam 113 revolves and turns around.

Power transfer unit comprises: second rotating shaft 123, and this second rotating shaft 123 connects with first rotating shaft, 117 spaced apart preset distances and with line winding unit 35; Be connected to a pair of pulley 125 of rotating shaft 117 separately and 123; And the belt 127 that connects pulley 125, this belt 127 passes to second rotating shaft 123 with the rotation of first rotating shaft 117, and the rotation that is about to driving cam 113 passes to line and twines unit 35.In addition, second rotating shaft 123 engages with lining 245, and is rotatably installed in the support frame 8.

Linear converter comprises: support 131, and this support 131 is arranged in the lifting linking member 105, and is formed with the elongated hole 131a that becomes predetermined angular with the lifting direction of lifting linking member 105; And removable pin 135, this removable pin 135 is provided with in the online retrieval unit 80, and engages movably to move along straight line with elongated hole 141a.Replacedly, support 131 can be provided with in the online retrieval unit 80, and removable pin 135 can be arranged in the lifting linking member 105.

To shown in Figure 24, type needle-threading device 140 comprises shank lifting unit 143 as Figure 15, and shank 25 joins this shank lifting unit 143 to so that rise and descend.Therefore, the pin 21 that is installed on the shank 25 leaves the sewing work zone, and rises to the swage working region so that upper thread 3 is passed the pinprick 21a of pin 21.

Shank lifting unit 143 comprises a pair of guidance unit 143a and 143b, and this liftably is arranged in the head 7 guidance unit 143a and 143b, be used for dividing in the middle holding shank 25, and guiding shank 25 rises and descends.For convenience, place the guidance unit of shank lifting unit 143 tops will be called as guidance unit 143a, place the guidance unit of shank lifting unit 143 belows will be called as guidance unit 143b down.Upper and lower guidance unit 143a and 143b aim at coaxially to each other and are spaced apart.The last guidance unit 143a of shank lifting unit 143 joins connecting rod 107 to, and is formed with Flexible element pockets 145 partly to hold shank Flexible element 147.

Shank Flexible element 147 is along the excircle setting of shank 25, and is contained in the Flexible element pockets 145 of guidance unit 143a, thereby flexibly connects shank 25 and shank lifting unit 143.In addition, when pin 21 sewing, shank Flexible element 147 absorbs the vibration of shank 25.

In addition, type needle-threading device 140 comprises: line grabber (thread catcher) 151, this line grabber 151 have and are used to hook the hook 153 of upper thread 3 and the coupler body 155 of support hook 153, and make upper thread 3 pass pinprick 21a; Make line grabber 151 reciprocating line grabber drivers 161; And be used to pick up upper thread 3 that is hooked by hook 153 and the line supply unit 181 that upper thread 3 is moved to coupler body 155.

Line grabber 151 comprises the hook 153 that is used to hook upper thread 3, and the coupler body 155 that is used for support hook 153.

Hook 153 is supported on the coupler body 155, and coupler body 155 has long clavate shape and relatively large cross section.

Line grabber driver 161 comprises: main body 163; The line grabber support member 165 that is used for Support Level grabber 151; Be used for Support Level grabber support member 165 with respect to main body 163 reciprocating a pair of back shafts 171; And make line grabber support member 165 reciprocating line grabber drive link 177.

Main body 163 is the bulks to a side opening, and joins installation frame 5 to.Main body 163 is formed with slit 163a on its end face, prevent to disturb with rotating dog 207 during with convenient rotating dog 207 reciprocating motions.

Line grabber support member 165 is block, and is arranged in reciprocating motion on the main body 163.First end of line grabber support member 165 is outstanding from main body 163, and above hook 153 is supported on Support Level grabber 151, thereby allow the pinprick 21a of hook 153 towards pin 21.In addition, in the couple positioned opposite of hook 153 a pair of hook guiding piece 167 is arranged, thereby guiding hook 153 steadily passes the pinprick 21a of pin 21.Hook guiding piece 167 supports by line grabber support member 165.And line grabber support member 165 is formed with connecting rod pockets 169, to hold first end (will be described later) of line grabber drive link 177.

Line grabber support member 165 supports by a pair of back shaft 171 that is provided with in the main body 163, and can this to back shaft 171 on reciprocating motion.Between the inwall of main body 163 and line grabber support member 165, be provided with back shaft Flexible element 173.In addition, back shaft Flexible element 173 is arranged on the excircle of back shaft 171.Here, under upper thread 3 remained on state in the hook 153,173 pairs of back shaft Flexible elements passed the hook 153 of the pinprick 21a of pin 21 and oppress, so that turn back to its home position from the pinprick 21a of pin 21.

Line grabber drive link 177 can be rotatably set in the head 7, with near and leave line grabber support member 165.Line grabber drive link 177 is provided with pin sloping portion 179 at an upper portion thereof.Here, when shank lifting unit 143 and lifting linking member 105 rise in the swage working region, pin sloping portion 179 contact drive pins 111.Pin sloping portion 179 forms and becomes predetermined angular with the lifting direction of pin 21 horizontal.

Therefore, when shank lifting unit 143 and lifting linking member 105 are driven by master driver 100 and when rising in the swage working region, drive pin 111 rises and contacts with the set pin sloping portion 179 in the top of online grabber drive link 177 simultaneously.Meanwhile, the bottom of line grabber drive link 177 is towards 165 rotations of line grabber support member and compressing line grabber support member 165, so that line grabber support member 165 moves along back shaft 171 to the front from the back of main body 163, thereby allow hook 153 to pass pinprick 21a.

Line supply unit 181 is caught the upper thread 3 that remains in the hook 153 and is flowed to coupler body 155, and line supply unit 181 comprises: line transfer gantry 183, this line transfer gantry 183 are caught the pinprick 21a that passes pin 21 and are remained on the upper thread 3 in the hook 153 and this upper thread 3 is flowed to coupler body 155; And the line feed drive device 191 that is used for drive wire transfer gantry 183.

Line transfer gantry 183 is arranged to and pinprick 21a and the hook 153 formed plane parallel of passing through pin 21, and is rotatably installed in the main body 163.Line transfer gantry 183 is provided with wired part 185 of catching in its presumptive area and remains on upper thread 3 in the hook 153 to catch the pinprick 21a that passes pin 21.Line transfer gantry 183 rotatably joins supplemental support unit 187 to, and this supplemental support unit 187 joins the inboard of main body 163 to.In addition, line transfer gantry 183 passes through line transfer gantry Flexible element 189 resiliency supported on supplemental support unit 187.

Line feed drive device 191 comprises the shank sloping portion 193 of a predetermined side that forms online transfer gantry 183, and the line stent 195 that makes 183 rotations of line transfer gantry when shank 25 descends by contact shank sloping portion 193.

Here, shank sloping portion 193 is laterally forming with the preset width cutting on online transfer gantry 183 length directions, thereby an end (will be explained below) of line stent 195 can rise in contact wire transfer gantry 183 1 sides and descend.

Line stent 195 joins the bottom of shank lifting unit 143 to, and has triangular cross section so that contact with shank sloping portion 193 at the one end.According to the rising and the decline of shank 25 and shank lifting unit 143, line stent 195 is separated with shank sloping portion 193 in being formed at line transfer gantry 183 and is contacted.

Therefore, shank 25 and shank lifting unit 143 all will be moved down into sewing work zone and move down along with pin 21 from the swage working region, thereby line stent 195 also will descend and contact the shank sloping portion 193 that is formed in the line transfer gantry 183 simultaneously.Therefore, line transfer gantry 183 is caught the pinprick 21a that passes pin 21 and is remained on upper thread 3 in the hook 153, and when main body 163 back rotate upper thread 3 is being flowed to coupler body 155.

Simultaneously, type needle-threading device 140 also comprises line guidance unit 111, and this line guidance unit 111 will be guided to by the upper thread 3 that line feeder 10 provides by the pinprick 21a of pin 21 and hook 153 formed planes, and upper thread 3 is remained on the hook 153.

Line guidance unit 111 comprises: runing rest 203, a side of this runing rest 203 are formed with predetermined line guiding sloping portion 205; Rotating dog 207, this rotating dog 207 moves in the line guiding sloping portion 205 of contact runing rest 203; Line guide support 209, this line guide support 209 upper thread that provided by line feeder 10 3 are provided and this upper thread 3 are guided to pinprick 21a and hook 153 formed planes by pin 21; And auxiliary connecting rod 215, this auxiliary connecting rod 215 connects runing rest 203 and line guide support 209, and the rotation of runing rest 203 is passed to line guide support 209.

Runing rest 203 rotatably joins on the end face of main body 163.One side of runing rest 203 forms wired guiding sloping portion 205, and the length direction of this line guiding sloping portion 205 and runing rest 203 horizontal becomes predetermined angular.

Rotating dog 207 is outstanding from the end face of line grabber support member 165, and during online grabber support member 165 reciprocating motions, makes runing rest 203 rotation in the line guiding sloping portion 205 of contact runing rest 203.In addition, rotating dog 207 is along the slit 163a reciprocating motion of main body 163, thereby can not disturb with main body 163 when operation.

Line guide support 209 comprises a pair of wire conductor 211 that goes out from its first distal process, and has predetermined space between this is to wire conductor 211.The line three-way hole 211a that allows the upper thread 3 that provided by line feeder 10 pass is provided each wire conductor 211, thereby picks up upper thread 3.In addition, line guide support 209 has second end that joins on the auxiliary connecting rod 215.

Auxiliary connecting rod 215 connects runing rest 203 and line guide support 209, and the rotation of runing rest 203 is passed to line guide support 209, thereby makes 209 rotations of line guide support.Here, auxiliary connecting rod 215 passes to line guide support 209 with the rotation of runing rest 203, thereby picked upper thread 3 is arranged on the pinprick 21a and hook 153 formed planes by pin 21 by the line three-way hole 211a that passes line guide support 209.

Simultaneously, runing rest 203 is provided with the protrusion 221 that extends from an end of line guiding sloping portion 205.Protrusion 211 stops by the blocks 225 that are formed at below the lifting support 223, thereby prevents that runing rest 203 from turning back to its home position, and wherein runing rest 203 rotations are so that place on the pinprick 21a and hook 153 formed planes by pin 21 upper thread 3.

Lifting support 223 is arranged on the runing rest 203, and by block Flexible element 227 resiliency supported, these block Flexible element 227 compressing blocks 225 are so that the top of elasticity compressing main body 163.Block Flexible element 227 has first end that supports by lifting support 223, and passes through second end that main body 163 supports.Simultaneously, elevating lever 231 is erected at the top of lifting support 223, and the while is towards the block 225 of lifting support 223.Along with the rising and the decline of lifting linking member 105, elevating lever 231 contacts with lifting support 223 and separates.Therefore, being arranged on blocks 225 below the lifting support 223 separates with protrusion 221 and contacts.

Elevating lever 231 is bar-shaped, and liftably joins the extension 133 of extending from support 131 to.Elevating lever 231 has the top contact and the bottom of separating with lifting support 223, and the top that is installed together with elevating lever Flexible element 235, when lifting linking member 105 moved down in the swage working region, this top compressing lifting linking member 105 was so that second end of elasticity compressing lifting support 223.

During top dead-centre in shank lifting unit 143 rises to the swage working region, elevating lever 231 moves up with shank lifting unit 143.At this time, the top portion of the bottom of elevating lever 231 and lifting support 223 from, thereby the pressure of lifting support 223 is released.Meanwhile, be arranged on block 225 end face by the resilience runing rest 203 of block Flexible element 227 in the lifting support 223.

In addition, when the upper thread 3 that is picked up by line guide support 209 moves to by the pinprick 21a of pin 21 and hook 153 formed planes, promptly when runing rest 203 rotation predetermined angulars, block 225 separates with the end face of runing rest 203, and contact the end face of main body 163 by the elastic force of block Flexible element 227, contact the protrusion 221 of runing rest 203 simultaneously, thereby prevent that runing rest 203 from turning back to its home position.

And, when pin 21 from the swage working region when the sewing work zone moves down, elevating lever 231 moves down with shank lifting unit 143.Therefore, when the top of the bottom of elevating lever 231 compressing lifting support 223, block 225 separates with protrusion 221, simultaneously with the top portion of main body 163 from, thereby allow runing rest 203 to turn back to its home position.

Simultaneously, embroidery machine according to the present invention comprises whether line-breakage sensor 240 disconnects to detect upper thread 3.Here, line-breakage sensor 240 comprises: vibration unit 241, this vibration unit 241 is keeping upper thread 3, support by support frame 8, and in pin 21 sewing in upper thread 3 tensionings and lax presumptive area internal vibration; And Magnetic Sensor 261, this Magnetic Sensor 261 and vibration unit 241 magnetic interlockings, and produce approach signal.

Vibration unit 241 is placed the following of online winding unit 35 and is engaged with lining 245, and this lining 245 rotatably joins on the excircle of second rotating shaft 123.Vibration unit 241 comprises: direction transformation device 241a, this direction transformation device 241a are used to change the throughput direction of the upper thread 3 that moves towards pin 21; Lining coupling part 241b, this lining coupling part 241b are arranged on the isolated predetermined space with direction transformation device 241a, run through by lining 245, and near and leave Magnetic Sensor 261 and move; And connector 241c, the lateral edges of this connector 241c closure converter 241a and lining coupling part 241b, and between direction transformation device 241a and lining coupling part 241b, keep the gap.In addition, the direction transformation device 241a of vibration unit 241 forms wired retaining hole 243, so that make upper thread 3 keep dangling and bending by direction transformation device 241a.

Vibration unit 241 drives by vibration unit driver 247 so that line retaining hole 243 is moved to the line transport path of upper thread 3, thereby upper thread 3 is kept on the online retaining hole 243.Vibration unit driver 247 comprises: vibration unit driving cam 249, and this cam 249 is formed with cam contour 249a in the one side, and rotatably joins on the excircle of lining 245; The cam pin 251 that moves along the cam contour 249a of vibration unit driving cam 249; By cam pin 251 is moved and the cam driver 253 of whirling vibration unit drives cam 249 along the cam contour 249a of vibration unit driving cam 249; And cam Flexible element 255, this cam Flexible element 255 is connected to each other vibration unit driving cam 249 and head 7, and makes 249 rotations of vibration unit driving cam to turn back to its home position by predetermined elasticity power.

Vibration unit 241 moves to the lax position of upper thread 3 by vibration unit Flexible element 257 from the position of upper thread 3 tensionings.

Vibration unit Flexible element 257 is arranged between vibration unit 241 and the vibration unit driver 247.Vibration unit Flexible element 257 has first end that supports by vibration unit driving cam 249, and passes through second end that vibration unit 241 supports.

Magnetic Sensor 261 is arranged between support frame 8 and the vibration unit 241, and supports by the sensor support support 263 that is erected on support frame 8 end faces.The bottom surface of the end face of Magnetic Sensor 261 and vibration unit 241 is spaced apart, promptly with the spaced apart predetermined distance of lining coupling part 241b of vibration unit 241.Magnetic Sensor 261 and vibration unit 241 magnetic interlockings, and produce signal and determine to allow controller 350 whether upper threads 3 disconnect, and this signal is offered controller 5.Here, Magnetic Sensor 261 can be placed on upper thread tension position in the reciprocating motion zone of vibration unit 241 and at least one position among the upper thread slack position.In this embodiment, Magnetic Sensor 261 is arranged on the upper thread slack position.

Magnetic Sensor 261 can be placed on upper thread tension position in the reciprocating motion zone of vibration unit 241 and at least one position among the upper thread slack position.In this embodiment, Magnetic Sensor 261 is arranged on the upper thread slack position.

Replacedly, line-breakage sensor can be realized by the rotation roller is installed on the online transport path.Whether in this case, the rotation roller can rotate under normal condition, but can not rotate under the broken string state, disconnect thereby detect upper thread 3.In addition, line-breakage sensor can be realized by setting pressure sensor on the online transport path.In this case, pressure sensor detects the tension force difference between normal feed of upper thread and upper thread disconnection.And line-breakage sensor can also become the electric contact signal to realize by the rotational transform that the line tension spring that a kind of device will embroider duration of work is provided.In this case, contact switch is opened in normal embroidery work, and its running contact is short-circuited when line disconnects.

Extremely shown in Figure 27 as Fig. 1 and Figure 25, cut cells 270 comprises: cutting out section 271, and this cutting out section 271 is sheared the upper thread 3 of being given pin working cell 20 by line feeder 10 transport path feeds along the line; Shear driver 281, this is sheared driver 281 and drives cutting out section 271 by the upper thread 3 on the clipper 273 shear line transport paths; And line reserve level adjuster 311, this adjuster 311 will return to line feeder 10 towards the upper thread 3 of the disconnection of bobbin so that give pin working cell 20 with the upper thread feed once more.

Cutting out section 271 place online feeder 10 the front and near and move away from the line back-up block 15 of line feeder 10, and cutting out section 271 comprises and is used to the clipper support member 275 shearing the clipper 273 of upper thread 3 and be used to support clipper 273.

Clipper 273 has the cross section of rectangle, and supports by clipper support member 275, so that the blade face that makes clipper 273 is to line back-up block 15.

Shearing driver 281 comprises: the back shaft 283 that is used to support clipper support member 275; And be connected to back shaft 283 and drive clipper 273 contact and, thereby allow clipper 273 to shear the upper thread 3 that transport path along the line is carried away from the auxiliary actuator 285 of upper thread 3.

Auxiliary actuator 285 comprises hydraulic cylinder 287, and by operating in of hydraulic cylinder 287 extend and withdrawal between pistons reciprocating bar 289.

Simultaneously, piston rod 289 is connected to back shaft 283 by clipper connecting rod 291.Clipper connecting rod 291 passes to back shaft 283 with the reciprocating motion of piston rod 289, thereby the clipper support member 275 that is connected to back shaft 283 1 ends can move near and away from the upper thread on the line transport path 3.

In addition, shearing driver 281 comprises: guiding piece 293, these guiding piece 293 activities join on the back shaft 283 and guide upper thread 3 to move to predetermined clipped position on the line transport path; And Flexible element 301, this Flexible element 301 provides predetermined elasticity to defeat to compel clipper support member 275 and guiding piece 293 to be spaced apart from each other.

Guiding piece 293 activities join on the back shaft 283 and simultaneously and between the clipper support member 275 and leave predetermined space.Guiding piece 293 is formed with and allows clipper 273 pass to shear the clipper through hole 295 of upper thread 3.In addition, the inside of guiding piece 293 is equipped with magnet 297 to attract the line back-up block 15 of line feeder 10, thereby the upper thread on the line transport path 3 is joined to securely on the circumference of clipper pockets 15b of line back-up block 15, and meanwhile, when upper thread 3 is sheared, upper thread 3 tensionings, thus allow upper thread 3 easily to be cut off.

In addition, guiding piece 293 is connected to turning arm 299, and this turning arm 299 is used for converting the reciprocating motion of piston rod 289 to precalculated position rotatablely move.Turning arm 299 has first end that joins guiding piece 293 to, and rotatably joins second end on the head 7 to.

Flexible element 301 is provided with between clipper support member 275 and guiding piece 293 along the excircle of back shaft 283.In this embodiment, wind spring is as Flexible element 301, but is not limited thereto.Replacedly, leaf spring, helical spring etc. and wind spring can both be used as Flexible element 301.

Therefore, auxiliary actuator 285 not only drives on the circumference of clipper pockets 15b that guiding piece 293 guides to the upper thread on the line transport path 3 line back-up block 15, but also the end that drives clipper 273 to be being received among the clipper pockets 15b and simultaneously at the transversely contact upper thread 3 of clipper pockets 15b, thereby allows clipper 273 to shear upper threads 3.

Simultaneously, line reserve level adjuster 311 comprises: line reserve level control agent 313, this control agent 313 have spatial accommodation with hold have predetermined spare length and be arranged on bobbin and line feeder 10 between many upper threads 3; And line reserve level regulating rod 321, this regulating rod 321 moves to spatial accommodation with described many upper threads 3.In addition, line reserve level adjuster 311 comprises the line conveying interceptor 331 that is arranged between bobbin and the line reserve level control agent 313 and intercepts the many upper threads 3 that flow to line reserve level control agent 313.

Line reserve level control agent 313 comprises a plurality of wire conductors 315 that many upper threads 3 guided to line feeder 10 from bobbin; And be communicated with and hold therein a plurality of line holding portions 317 of standby every upper thread 3 with each wire conductor 315.In addition, line reserve level control agent 313 also comprises the directional slit 319 that the holding portion 317 along the line in a lateral direction of online throughput direction forms and is communicated with it.Preferably, line reserve level control agent 313 is the shape of rectangular block.

Wire conductor 315 is to form with the desired depth fluting on the throughput direction of upper thread 3 on the end face of online reserve level control agent 313, so that hold many upper threads 3 respectively individually.Preferably, wire conductor 315 has enough degree of depth to prevent upper thread 3 disengagings when carrying upper thread 3.In addition, wire conductor 315 will guide to line feeder 10 from the disconnection of bobbin and the upper thread that is wrapped on the bobbin.

Line holding portion 317 is to form with predetermined downward degree of depth fluting on the bottom surface of each wire conductor 315, and has predetermined width on the online throughput direction.In addition, line holding portion 317 throughput directions along the line are provided with a plurality of.According to the embodiment of the present invention, have three line holding portions 317 on the throughput direction along the line.In addition, the reserve level of the degree of depth of line holding portion 317 by upper thread 3 determine, and the end that the reserve level of upper thread 3 preferably is defined as making the pinprick 21a of pin 21 to be fed to the upper thread 3 that holds among pin working cell 20 and the line standby pipes 11a by line feed piece 11 is passed.In addition, these a plurality of line holding portions 317 allow the reserve level of upper thread 3 to distribute therein, thereby reduce the degree of depth of each line holding portion 317.

Directional slit 319 is communicated with line holding portion 317, and holds/guide line reserve level regulating rod 321.

Line reserve level regulating rod 321 is contained in the directional slit 319 movably, and many upper threads 3 are arranged on duty the wire conductor 315 from upper thread 3 are transformed into upper thread 3 and hold stand-by state in the online holding portion 317, to be supplied to pin working cell 20.In addition, line reserve level regulating rod 321 will be transported to stand-by state from the upper thread 3 towards the disconnection of bobbin of wire conductor 315, thereby recover the end of many upper threads 3.Preferably, line reserve level regulating rod 321 is placed on the top of many upper threads 3.More preferably, the quantity of a plurality of line reserve level regulating rods 321 of setting is corresponding with the quantity of directional slit 319.In this embodiment, provide two directional slits 319 on two line reserve level regulating rods, the 321 corresponding line throughput directions.And line reserve level regulating rod 321 has and regulating rod support member 323 whole first ends that form or engage.

Regulating rod support member 323 engages with regulating rod driver 325, and line reserve level regulating rod 321 is moved along directional slit 319.

Regulating rod driver 325 realizes by cylinder assembly that preferably this cylinder assembly has first end that joins regulating rod support member 323 to and allows 323 reciprocating motions vertically of regulating rod support member.Replacedly, regulating rod driver 325 can realize that they are connected to regulating rod support member 323 and allow 323 reciprocating motions of regulating rod support member by belt and motor.

In addition, line reserve level adjuster 311 comprises line conveying interceptor 331, and this line carries interceptor 331 to be arranged between bobbin and the line reserve level control agent 313, is used to intercept the upper thread of carrying from line axial line reserve level control agent 313 3.

The back that line carries interceptor 331 to place online reserve level control agent 313.Line carries interceptor 331 to comprise bracing frame 333, and this bracing frame 333 supports by line reserve level control agent 313, and is formed with the through hole 333a that runs through respectively by the many upper threads of carrying from bobbin 3.

Be provided with interceptor 335 above the bracing frame 333, this interceptor 335 contacts and leaves the upper thread that flows to wire conductor 315 by through hole 333a, flows to the many upper threads 3 of wire conductor 315 with intercepting.

Interceptor 335 liftably joins on the bracing frame 333, and is connected to interceptor driver 341 by a pair of bar 337 and connecting rod 339.

Interceptor driver 341 is preferably realized by cylinder assembly, this cylinder assembly has first end that is connected to connecting rod 339, and interceptor 335 is risen towards the end face of bracing frame 333, promptly allow interceptor 335 contact and away from the many upper threads of carrying to wire conductor 315 along the end face of support member 333 3, thus intercepting or allow many upper threads 3 to be transported to wire conductor 315.

Simultaneously, embroidery machine 1 according to the present invention comprises: what be arranged on a side of installation frame 5 and allow that the user controls machine 1 controls part 355; And the controller of realizing by microcomputer usually 350, this controller 350 is used for according to determining by the signal of controlling part 355 outputs and by the signal of Magnetic Sensor 261 outputs whether upper thread 3 disconnects.Controller 350 controls: the sewing operation of shank driver 27 driving needle 21; The vibration operation of arm driver 75 actuating arms 61; Master driver 100 rotational lines twine unit 35, and make line take out bar 81 reciprocating motions; Cam driver 253 whirling vibration unit drives cams 249; Shearing driver 281 driving cutting out section 271 make the upper thread 3 on the clipper 273 shear line transport paths; Regulating rod driver 325 driving regulating rod support members 323 return to line feeder 10 with the end of the line 3 of disconnection; And interceptor driver 341 drives interceptor 335 interceptings or allow many upper threads 3 to flow to wire conductor 315.In addition, controller 350 comprises that the embroidery program is to use predetermined embroidery operation on the embroidery workpiece.

Utilize this structure, describe operation according to embroidery machine 1 of the present invention with reference to Fig. 4.

The user controls part 355, makes pin 21 utilize upper thread 3 normally to thread at pin 21 and carries out normal sewing operation under the state of pin, thereby start embroidery part 355.

At this time, when upper thread 3 does not disconnect to pin working cell 20 normal feeds from line feeder 10, the lining coupling part 241b of vibration unit 241 periodically produces approach signal by the magnetic interlocking of the lining coupling part 241b of vibration unit 241, periodically move simultaneously with near and away from Magnetic Sensor 261, thereby the signal that is produced to controller 350 outputs.Simultaneously, under the situation that upper thread 3 disconnects, the tension force that acts on the upper thread 3 on the vibration unit 241 disappears, and is irrelevant with the embroidery operation of pin 21 thereby vibration unit 241 no longer vibrates.That is, the lining coupling part 241b of vibration unit 241 no longer periodically move with near and away from Magnetic Sensor 261, thereby it is no longer continuously near Magnetic Sensor 261.Thereby the Magnetic Sensor 261 continuous signals that produce approach signal and will produce are exported to controller 350.

In operation S10, controller 350 determines according to the signal of Magnetic Sensor 261 outputs whether line disconnects.For example, controller 350 determines that then upper thread 3 carries and do not disconnect to pin working cell 20 is normal from line feeder 10 when the signal that periodically receives from Magnetic Sensor 261.On the other hand, controller 350 determines that then upper thread 3 disconnects when the signal that receives continuously from Magnetic Sensor 261.

In operation S20, when controller 350 determined that upper threads 3 disconnect, controller 350 was to shank driver 27 output signals, and stopped pin working cell 20.That is, embroidery machine 1 quits work.

After pin working cell 20 stopped, in operation S30, controller 350 drove cut cells 270 and shears the upper thread 3 that disconnects.

Below, will process that use cut cells 270 to shear the upper thread 3 that disconnects be described schematically.

As shown in figure 25, under the clipper 273 and line back-up block 15 isolated states of cutting out section 271, shear piston rod 289 withdrawals of the auxiliary actuator 285 of driver 281, thereby the clipper 273 of cutting out section 271 moves to the clipper pockets 15b of line back-up block as shown in figure 26.

When piston rod 289 withdrawal of auxiliary actuator 285, clipper connecting rod 291 moves to auxiliary actuator 285, and back shaft 283 is positioned in by turning arm 299 rotations on the plane identical with piston rod 289.At this moment, guiding piece 293 rotates to line back-up block 15 along with the rotation of back shaft 283, thereby will keep the upper thread 3 on the online pickup unit 60 to promote to the front surface of line back-up block 15.

Then, when piston rod 289 withdrawal, under the state of the front surface of guiding piece 293 tight contact wire back-up blocks 15, clipper support member 275 moves to guiding piece 293.Thereby the end of clipper 273 passes the clipper through hole 295 of guiding piece 293, and with shear upper thread 3 when clipper pockets 15b upper thread 3 transversely contacts.Simultaneously, the Flexible element 301 that is arranged between clipper support member 275 and the guiding piece 293 is compressed.At this moment, the end of the upper thread 3 of disconnection is enough fitly sheared upper thread 3 is easily passed the pin 21 of pin working cell 20.

After shearing the upper thread 3 that disconnects, in operation S40, upper thread 3 recovers from the pin 21 of pin working cell 20.

Promptly, upper thread 3 disconnects, as shown in figure 27, under the state of the front surface of guiding piece 293 tight contact wire back-up blocks 15, the excellent driver 325 of controller 350 control and regulation, so that directional slit 319 declines of line reserve level regulating rod 321 reserve level control agents 313 along the line, thereby will be inserted into predetermined length in the line holding portion 317 from the upper thread 3 of bobbin, its upper thread that breaks 3 is wrapped on the bobbin.At this moment, line carries interceptor 321 to be in the state that allows to carry upper thread 3.

During from line axial line holding portion 317 supply predetermined lengths, controller 350 drives interceptor drivers 341 to prevent that upper thread 3 from flowing to line reserve level control agent 313 from bobbin at the upper thread 3 that disconnects.

In addition, under the state that upper thread 3 is not carried from line axial line reserve level control agent 313, the piston rod 289 of auxiliary actuator 285 stretches out, thereby guiding piece 293 is spaced apart with line back-up block 15.At this moment, will keep upper thread 3 and the upper thread from line pickup unit 60 to pin working cell 20 3 on the online pickup unit 60 to take out embroidery machine 1.

Then, the guide slit 319 of line reserve level regulating rod 321 reserve level control agents 313 along the line further descends, so that will flow to pin working cell 20 once more to the upper thread 3 of the disconnection of bobbin extension from clipper pockets 15b.Therefore, the end of the upper thread 3 of disconnection is restored to the spare space of line feeder 10, promptly in the tube connector 13 of line feeder 10.

Therefore, the end of the upper thread 3 that disconnects when carrying out embroidery work is enough fitly cut off easily upper thread 3 is passed the pin 21 of pin working cell 20.In addition, the end of upper thread 3 is placed the line stand-by state of online feeder 10, thereby has finished the preparation of once more upper thread 3 feeds being given pin working cell 20.

Then, after pin 21 recovered, controller 350 drove upper thread feed unit and gives pin working cell 20 with new upper thread 3 feeds at the upper thread 3 that disconnects, thereby utilized new upper thread 3 to pass pin 21 in operation S50.

Below, utilize new upper thread 3 to pass the process of pin 21 with schematically describing.

At first, line twines on the retainer 37 online feed pieces 11 of placement and the line transport path between the line bootstrap block 17 of unit 35.Simultaneously, each maintenance end 83a of line taking-up bar 81 and the line three-way hole 85a on the 83b and 85b aim at the line path of navigation 17a of line bootstrap block 17 and are communicated with.

In addition, controller 350 control cam drivers 253 are driven, so that cam pin 251 moves along the cam contour 249a of vibration unit driving cam 249, thereby the line retaining hole of vibration unit 241 243 and line twine retainer 37 coaxial alignments of unit 35.When cam pin 251 rises when the cam contour 249a along vibration unit driving cam 249 moves, vibration unit 241 rotates with vibration unit driving cam 249, thereby the line retaining hole 243 of vibration unit 241 is twined retainer 37 coaxial alignments of unit 35 (with reference to Fig. 8 A and 8B) with line and is communicated with.

Then, a upper thread 3 is selected in having the versicolor many standby upper threads from line feed piece 11, carries to pin 21 by the line path of navigation 17a of compressed air from the line feed path 15a process line bootstrap block 17 of line back-up block 15 then.

At this time, upper thread 3 leaves line feed path 15a and passes each maintenance end 83a of the line retaining hole 243 of the retainer 37 of line winding unit 35, vibration unit 241, line path of navigation 17a, line taking-up bar 81 and line three-way hole 85a and the 85b on the 83b successively, thereby is transported to the pin 21 of the bottom dead centre that is positioned at the sewing work zone.

Then, controller 350 control master drivers 100 drive lifting linking member 105 and rise, thereby pin 21 are placed on the top dead-centre in sewing work zone.

At this time, when lifting linking member 105 moves up, line twine unit 35 by driving cam 113 in the first direction rotation, take out from the line transport path thereby twine the upper thread 3 that the retainer 37 of unit 35 keeps, and the line contact portion 33 of tension adjustment body 32 along the line is twined by line.The upper thread 3 that is wrapped on the line contact portion 33 of line tension control agent 32 produces resistance when passing the line contact portion 33 of line tension control agent 32, thus upper thread 3 tensionings that contact portion 33 along the line is moved.

That is, when lifting linking member 105 moved up, drive pin 111 moved along the rising outline portion of driving cam 113, thereby driving cam 113 is rotated at first direction.When driving cam 113 rotation, first rotating shaft, 117 corresponding rotation, thus by each pulley 125 of connecting by belt 127 rotation of first rotating shaft 117 is passed to second rotating shaft 123, rotate at first direction thereby make line twine unit 35.

Simultaneously, the upper thread 3 that passes to line bootstrap block 17 through line tension control agent 32 remains in the line retaining hole 243 of vibration unit 241.Then, vibration unit 241 turns back to its home position by the elastic force of cam Flexible element 255.The vibration unit 241 that returns vibrates by the elastic force of vibration unit Flexible element 257.Therefore, the tension force by the upper thread that produced by line tension control agent 32 3 itself not only, but also the vibration operation by vibration unit 241 make through upper thread 3 tensionings of vibration unit 241 and lax.

Simultaneously, when lifting linking member 105 moves up, the line that line three-way hole 85a by passing each retainer 83a and 83b and 85b are keeping upper thread 3 takes out bar 81 with taking out shaft bar 91 near the wire maintainers 63 that are positioned at the line pickup unit 60 of bottom dead centre, and the fin 67 (with reference to Figure 12 A) of compressing line pickup unit 60.Then, shown in Figure 12 B, the inwardly rotation and open opening 65 of the fin 67 of the opening 65 of Resistance level retainer 63, then, the upper thread 3 that keeps as the line three-way hole 85a that is taken out bar 81 by line and 85b is during near the precalculated position in the opening 65, elastic force by Flexible element 69 turns back to its home position, promptly is used to stop the position of opening 65.

In addition, fin 67 is contained in by line and takes out in bar 81 and the taking-up shaft bar 91 formed fin holding portions 81.And fin 67 contacts with the outline portion 93 that takes out shaft bar 91.

Then, controller 350 control master drivers 100 drive so that lifting linking member 105 rises, thereby make pin 21 leave the top dead-centre in sewing work zone, and move to the swage working region.

At this time, when lifting linking member 105 moves up, be not only connecting rod 107, and also have shank lifting unit 143 all will rise.

When shank lifting unit 143 rose, shank 25 moved up by the elastic force of shank Flexible element 147.At this time, disturb, shank 25 and shank driver 27 are disconnected by clutch in order to prevent shank 25 and shank driver 27.Then, when shank 25 moved up, pin 21 left the top dead-centre in sewing work zone, arrived predetermined height up to it, i.e. the hook 153 of the pinprick 21a of pin 21 and line grabber 151 swage of aiming at grade aim the place (with reference to Figure 17).

Simultaneously, after upper thread 3 passes the line three-way hole 211a of line guide support 209, when shank lifting unit 143 rises to the swage operating position, remain under the state of swage aligned position at pin 21 and shank 25, only be that shank lifting unit 143 rises to the swage operating position.As shown in figure 18, shank lifting unit 143 is moved upwards up to the swage operating position, from one of lifting linking member 105 side-prominent drive pin 111 with move up when set pin sloping portion 179 the line grabber drive link 177 contacts, thereby the lower end of line grabber drive link 177 rotates to the front from the back of main body 163, and being contained in the connecting rod pockets 169, thereby compressing line grabber support member 165.Simultaneously, the elevating lever 231 of compressing lifting support 223 also moves up, thereby lifting support 223 discharges from elevating lever 231.

In addition, when line grabber support member 165 is oppressed, line grabber support member 165 moves to the front from the back of main body 163, thereby moves and pass pinprick 21a with hook 153 that the pinprick 21a of pin 21 places line grabber 151 at grade to the pinprick 21a of pin 21.

Simultaneously, online grabber support member 165 from the back of main body 163 when move the front, the rotating dog 207 that the top of online grabber support member 165 is set moves forward along the slit of main body 163, and with runing rest 203 is rotated when the line guiding sloping portion 205 that forms in the runing rest 203 contact.Simultaneously, be arranged on the protrusion 221 that forms in the block 225 contact runing rests 203 in the lifting support 223, thereby prevent runing rest 203 rotations.

In addition, when runing rest 203 rotations, auxiliary connecting rod 215 rotations.Therefore, the angle of about 90 degree of line guide support 209 rotations, thereby the upper thread 3 that passes the line three-way hole 211a of line guide support 209 is directed to by the pinprick 21a of pin 21 and hook 153 formed planes, and keeps simultaneously on the online grabber 151 (with reference to Figure 19).At this time, line grabber 151 and hook guiding piece 167 are placed between a pair of line guiding piece 211 of line guide support 209.

Then, master driver 100 drives lifting linking member 105 and descends, thereby shank lifting unit 143 is moved to swage aligned position (with reference to Figure 20) from the swage operating position.

At this time, when shank lifting unit 143 moves down, also descend with lifting support 223 isolated elevating levers 231.And, when shank lifting unit 143 moves down, from one of lifting linking member 105 side-prominent drive pin 111 with move down when set pin sloping portion 179 the line grabber drive link 177 contacts, thereby the lower end of line grabber drive link 177 is to the rotation of the back of main body 163, and the pressure on the release wire grabber support member 165.

When line grabber support member 165 when line grabber drive link 177 discharges, line grabber support member 165 moves to the back of main body 163 by the elastic force of back shaft Flexible element 173.Therefore, the line grabber 151 that supports by line grabber support member 165 also moves to the back of main body 163, thereby the hook 153 of line grabber 151 leaves the pinprick 21a of pin 21 when catching upper thread 3, be arranged on the predetermined space place of leaving pin 21 then.At this time, upper thread 3 still remains on the hook 153, even it passes the pinprick 21a of pin 21.

Then, master driver 100 drives shank lifting unit 143 and moves down, thereby makes pin 21 move to the sewing work zone from the swage working region.When shank lifting unit 143 moved down, pin 21 and shank 25 also descended.Simultaneously, elevating lever 231 also descends, and a side of compressing lifting support 223, thereby the block 225 of lifting support 223 separates from the end face of main body 163, and discharge the protrusion 221 of runing rest 203, thereby allow runing rest 203 in the second direction rotation and turn back to its home position.In addition, when runing rest 203 rotation when turning back to its home position, auxiliary connecting rod 215 is in the second direction rotation, thus line guide support 209 also turns back to its home position.

As shown in figure 22, when shank 25 and 143 declines of shank lifting unit, be arranged in the shank lifting unit 143 and move down along formed shank sloping portion 193 in the line transfer gantry 183 shown in Figure 23, thereby line transfer gantry 183 is rotated at first direction with the line stent 195 of line transfer gantry 183 spaced apart preset distances.At this time, the line of line transfer gantry 183 is caught the pinprick 21a that part 185 is passed pin 21, and catches the upper thread 3 that remains on the coupler body 155, thereby upper thread 3 is moved to coupler body 155.

Then, master driver 100 driving needle lifting linking members 105 descend, thereby pin 21 are moved to the bottom dead centre in sewing work zone from the swage working region.

When lifting linking member 105 descended, drive pin 111 moved along the decline outline portion of driving cam 113, upper thread 3 had been wound on the line tension control agent 32 shown in Fig. 9 A and Fig. 9 B in the first direction rotation thereby line twines unit 35.Therefore, the retainer 37 that line twines unit 35 turns back to its home position, is communicated with the line feed path 15a of line back-up block 15.

Simultaneously, when lifting linking member 105 descends, line takes out bar 81 moves backward to upper thread 3 from the line holding position extracting position, and stop at fin 67 under the state of opening 65, the fin 67 of wire maintainer 63 is along the straight line movable part 93a linear slide of the outline portion 93 that takes out shaft bar 91, thus the horizontal movable part 93b of arrival outline portion 93.In addition, fin 67 slides along horizontal movable part 93b, separate thereby the free end that takes out shaft bar 91 little by little takes out bar 81 from line, and fin holding portion 87 opens, thereby allows fin 67 to leave the fin holding portion 87 of line retrieval unit 80.

When fin 67 leaves the fin holding portion 87 of line retrieval unit 80, take out shaft bar 91 and take out the horizontal sideway swivel of bar 81 to line, and turn back to its home position by the elastic force of taking out the bar Flexible element.

In addition, for line path of navigation 17a and each that makes line bootstrap block 17 keeps line three- way hole 85a and 85b on end 83a and the 83b to be communicated with, line takes out bar 81 and turns back to its home position, as shown in figure 13.

At this time, as Figure 12 C and shown in Figure 13, upper thread 3 passes the line path of navigation 17a of the bootstrap block 17 of reaching the standard grade and the line three-way hole 85a of last maintenance end 83a, and its direction changes in fin 67.Then, upper thread 3 passes down the line three-way hole 85b that keeps end 83b and the line path of navigation 17a of bootstrap block 17 that rolls off the production line, thereby sends pin 21 to.

Then, as shown in figure 14,, remain on upper thread 3 tensionings on the wire maintainer 63 when arm driver 75 is driven into the wire maintainer 63 of line pickup unit 60 when being positioned at top dead-centre.Therefore, the upper thread 3 that remains on the wire maintainer 63 replaces tensioning and lax when vibrating between bottom dead centre and top dead-centre by the vibration of arm driver 75.

In addition, when lifting linking member 105 moves down, shank 25 and shank lifting unit 143 descend from the swage working region to the sewing work zone, thereby keep upper thread 3 on the coupler body 155 of online grabber 151 lax naturally and pass the pinprick 21a of pin 21 from the coupler body 155, thereby finished swage work, as Figure 21 and shown in Figure 24.

Utilizing after new upper thread 3 passes pin 21, in operation S60, controller 350 drives shank driver 27 once more to carry out remaining embroidery work according to predetermined embroidery program.

In addition, in operation S70, controller 350 determines whether the embroidery program is finished.When the embroidery program was finished, controller 350 stopped the work of shank driver 27, thereby finished embroidery work.

Therefore, when in the normal execution embroidery course of work, detecting the upper thread disconnection, stop the operation of pin working cell automatically, utilize the automatic swage of new upper thread then, provide the required time of the pin that has new upper thread thereby reduced, thereby improved productivity ratio, and realized its automated system.

In the above-described embodiment, the upper thread of disconnection is sheared by drive cut cells after stopping the pin working cell.Replacedly, the shearing work of the upper thread of disconnection can optionally be carried out.

And in the above-described embodiment, the upper thread of disconnection is sheared by the cut cells that has clipper.Replacedly, laser beam, hot wire and analog can be used for replacing clipper to be used to shear the upper thread of disconnection.

Simultaneously, it will be recognized by those skilled in the art that the present invention can be applied to various sewing devices, as single needle automatic embroidering machine, spininess automatic embroidering machine, Sewing machines etc.

As mentioned above, the invention provides a kind of method of operating of embroidery machine, it has reduced when upper thread disconnects provides the required time of the pin working cell that has new upper thread, thereby has improved productivity ratio, and has realized its automated system.

Claims (3)

1, a kind of method of operating of embroidery machine, described embroidery machine comprises: the line feeder; Pin working cell, this pin working cell have the pin that is installed with from the upper thread of line feeder supply, and carry out sewing operation; Line feed unit, this line feed unit forms the line transport path from the line feeder to the pin working cell, and has and be used to supply the upper thread feeder of upper thread and the type needle-threading device that uses this upper thread swage; Whether line-breakage sensor, this line-breakage sensor are used to detect the upper thread that transport path along the line carries and disconnect; And cut cells, this cut cells is used for the upper thread on the shear line transport path, and described method of operating comprises:

Whether control described line-breakage sensor detection upper thread disconnects;

Stop the operation of described pin working cell;

Recover the upper thread of disconnection from described pin working cell; And

Drive described upper thread feeder, for the new upper thread of described pin working cell feed with swage.

2, method of operating according to claim 1 also is included in and stops after the described pin working cell, drives described cut cells and shears the upper thread that disconnects.

3, method of operating according to claim 1 and 2 also is included in ew line and has threaded after the pin, drives described pin working cell and makes described pin carry out sewing operation.

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