CN104047128B - Sewing machine needle bar switching device - Google Patents
Sewing machine needle bar switching device Download PDFInfo
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- CN104047128B CN104047128B CN201310082896.8A CN201310082896A CN104047128B CN 104047128 B CN104047128 B CN 104047128B CN 201310082896 A CN201310082896 A CN 201310082896A CN 104047128 B CN104047128 B CN 104047128B
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Abstract
The present invention relates to a kind of sewing machine needle bar switching device, there is the needle bar hole side opening that a needle bar casket is installed with on plural number needle bar, and needle bar casket and be provided with longitudinal chute and be fitted together to for needle bar；And needle bar casket side is provided with the needle bar casket keeper of a tool control track, control track is the most chimeric with needle bar again, and it is provided with a longitudinal opening, again so that plural number needle bar to be positioned at the corresponding needle bar card unification needle bar guide rod at longitudinal opening, with needle bar guide rod, the crank connecting link of sewing machine drives and carries out upper and lower motion, finally drive and position needle bar casket with a driving means so that it is in a needle bar hole move to one and present the sewing position of linear array with longitudinal opening, needle bar guide rod.So select running fix to the needle bar of sewing position, can be synchronized to drive upper and lower motion by needle bar guide rod, and be not moved to other needle bars of sewing position, managed guide rail processed is limited and cannot upper and lower move.
Description
Technical field
The present invention, about a kind of needle bar mechanism being installed in sewing machine headstock, particularly relates to a kind of in the case of headstock sewing datum mark is constant, may select and be changed to different needle bar, carry out the device of needle bar switching.
Background technology
nullRefer to shown in Fig. 1，Conventional linear multi-handpiece sewing machine has a board 10，And on board 10, extend a machine frame 11，This machine frame 11 is provided with a plurality of sewing head 12 separated each other，And the desktop of above-mentioned board 10 is provided with a plurality of flat board 13，Above-mentioned flat board 13 is perpendicular to the sewing head 12 of each correspondence，And rotating shuttle (scheme depending on) is arranged at below above-mentioned flat board 13，And sewing operation can have been coordinated with each sewing head 12，The most above-mentioned board 10 upper surface separately has support frame 14 and a driving means (not shown)，Above-mentioned support frame 14 generally presents a rectangle pattern，And in order to support cloth to be embroidered，And above-mentioned driving means is combined with above-mentioned support frame 14，Make above-mentioned support frame 14 can X axis in the horizontal plane with in Y-axis，Upper surface along above-mentioned board 10 moves.Wherein, each sewing head 12 has a plurality of linearly aligned needle bar 15 to provide different types of suture, therefore, can directly select needle bar 15 to carry out the sewing of various suture.
But, the needle bar 15 that this kind of multi-handpiece sewing machine is usually each sewing head 12 uses linear array, and the drop point site of each needle bar 15 is fixed, therefore, the width that the size of the flat board 13 being positioned at platform moving cloth is necessary for wanting to contain the arrangement of all needle bars 15 is plus the width sewing work surface, its scaffold 11 often resulted on whole board 10 is bulky, and on reality is sewed, once needle bar 15 quantity on sewing head 12 is more, then cause the necessary extension design of X-motion stroke of driving means, beginning can allow the same point of cloth on platform can deliver to two respectively to be positioned at the most left and the rightest needle bar 15 position sewing.
Refer to shown in Fig. 2, for reducing the X-motion length of driving means on platform, then another ring-type multi-handpiece sewing machine is developed, this ring-type multi-handpiece sewing machine has a board 16 equally, and extended one by board 16 and be provided with a plurality of bracing frame 17 being spaced sewing head 18, wherein, it is that with conventional linear multi-handpiece sewing machine difference the needle bar 19 on sewing head 18 with a plurality of annular arrangement is to provide different types of suture.Although, straight line is made into annular arrangement mode and designs the movement length that really can reduce X axis, but the needle bar drop point of this kind of sewing machine is same or fixed position, more once needle bar quantity on sewing head or sewing head, still influences whether the length of X-motion stroke.
Because conventional multiple start formula sewing machine still has the shortcoming that bulky and driving means X-motion stroke must lengthen, it is necessary that improvement design goes out the needle bar switching mechanism of a sewing machine and improves disappearance at present in fact.
Summary of the invention
The main object of the present invention, aim to provide the needle bar switching device of a kind of sewing machine, allow sewing machine headstock in the case of sewing datum mark and bottom platform invariant position, can need in switching device, be directly changed to different needle bar according to sewing to sew, to reach quick and needle exchange sewing easily effect.
The secondary objective of the present invention is that needle bar switching device has and prevents needle bar from rotating and limit the design of needle bar axially-movable, running fix can be allowed to carry out upper and lower axially-movable to the needle bar of sewing position, and guarantee that remaining needle bar being not moved to sewing position will be unable to upper and lower axially-movable.
Another object of the present invention is to needle bar casket in needle bar switching device uses circumference, straight line or the various different arrangement modes such as curved to accommodate needle bars, needle bar switching device is facilitated to use Optimum structural design to assemble according to the vehicle head structure size of different sewing machines type, the popularity in the convenience being effectively increased in assembling and application.
For reaching described purpose, sewing machine needle bar switching device of the present invention mainly comprises a needle bar casket, a needle bar casket keeper, a plurality of needle bar with needle, a needle bar guide rod and a driving means and goes out a sewing machine needle bar switching device to structure altogether.
Wherein, above-mentioned needle bar casket has the needle bar hole that a plurality of interval row sets, and above-mentioned each needle bar hole side opening is provided with the longitudinal chute outside at least one connection；And above-mentioned needle bar casket keeper is positioned at above-mentioned needle bar casket side, there is a control guide rail, and above-mentioned control guide rail separately has a longitudinal opening；The most above-mentioned needle bar is located in the needle bar hole of above-mentioned needle bar casket respectively, and is embedded in above-mentioned longitudinal chute and above-mentioned control guide rail；It is sticked in a wherein needle bar of corresponding above-mentioned longitudinal opening position in above-mentioned a plurality of needle bar by above-mentioned needle bar guide rod again, and coordinates the crank connecting link drive of sewing machine itself to carry out upper and lower motion；Finally, driving means of the present invention, in order to drive above-mentioned needle bar casket and to have positioning function, makes one of them of above-mentioned a plurality of needle bar hole can be selectively moved to an above-mentioned longitudinal opening of cooperation and above-mentioned needle bar guide rod forms the sewing position of linear array.
So can allow and select running fix to the needle bar of above-mentioned sewing position, be synchronized drive by above-mentioned needle bar guide rod and carry out upper and lower axially-movable, remaining is not moved to the needle bar of above-mentioned sewing position, then by above-mentioned control guide rail limited cannot be upper and lower axially-movable.
In a preferred embodiment, needle bar casket keeper of the present invention and needle bar guide rod are positioned at the same side of above-mentioned needle bar casket；The most above-mentioned needle bar is provided with first protuberance being embedded in above-mentioned control guide rail, and above-mentioned needle bar guide rod is provided with the first recess of corresponding above-mentioned first protuberance, to reach the purpose being mutually clamped and can being synchronized with the movement.In addition, needle bar also can be provided with a recess being embedded in above-mentioned control guide rail, and above-mentioned needle bar guide rod is provided with the protuberance of a corresponding above-mentioned recess.
In another preferred embodiment, needle bar casket keeper of the present invention and needle bar guide rod are positioned at the opposition side of above-mentioned needle bar casket；The most above-mentioned needle bar is provided with one first protuberance and one second protuberance, and above-mentioned needle bar guide rod is provided with the first recess of corresponding above-mentioned first protuberance, and to reach the purpose being mutually clamped and can being synchronized with the movement, and above-mentioned second protuberance is embedded in above-mentioned control guide rail.
In aforementioned two preferred embodiments, above-mentioned first protuberance is set to the most mutually one group of corresponding protuberance and depression with the contact snap-latch surface of the first recess.And circumference, straight line or curved arrangement mode can be adopted in the plural needle bar hole on needle bar casket of the present invention, and drive through above-mentioned driving means carry out respectively rotating, linear or swing the one way in which of displacement, use the relative position changed between above-mentioned a plurality of needle bar holes and above-mentioned needle bar guide rod.
Additionally, driving means of the present invention comprises a driving motor and a gear unit further, above-mentioned driving motor has a drive shaft；And above-mentioned gear unit one end is connected to above-mentioned drive shaft, the other end is then connected to above-mentioned needle bar casket.In a possible embodiments, gear unit of the present invention can be set to the one of which of the drive mechanism of gear train, belt group, driving screw group, actuator, motor direct-drive or other executive modules composition.
In addition, present tube guide rail can be set to one and be formed a groove or a grooving by above-mentioned needle bar casket keeper concave surface, and above-mentioned needle bar is provided with corresponding above-mentioned groove or a projection for grooving.Above-mentioned control guide rail also can be set to one certainly and formed a ring flange by above-mentioned needle bar casket keeper surface protrusion, and the breach or that above-mentioned needle bar is set to a correspondence is resisted against the block above above-mentioned ring flange, above-mentioned needle bar is made to be limited by above-mentioned control guide rail, it is impossible to carry out upper and lower axially-movable.
It is an advantage of the current invention that optionally to coordinate the needle bar guide rod of a fixed position to engage through a plurality of positions needle bar in needle bar casket, allow sewing machine headstock in the case of sewing datum mark and bottom platform invariant position, can need directly to be changed to different suture according to sewing and sew.
Additionally, needle bar casket of the present invention and needle bar casket keeper are respectively equipped with longitudinal chute and control guide rail, can effectively prevent needle bar from rotating and limit the axially-movable of needle bar, selected needle bar so can be allowed to carry out upper and lower axially-movable, and guarantee that remaining unselected needle bar will be unable to upper and lower axially-movable.
Furthermore, needle bar casket of the present invention uses circumference, straight line or the various different arrangement modes such as curved to accommodate needle bars, needle bar switching device is facilitated to use Optimum structural design to assemble according to the vehicle head structure size of different sewing machines type, the popularity in the convenience being effectively increased in assembling and application.
Accompanying drawing explanation
Fig. 1 is the axonometric chart of tradition needle bar linear arrangement multi-handpiece sewing machine；
Fig. 2 is the axonometric chart of tradition needle bar annular arrangement multi-handpiece sewing machine；
Fig. 3 is the schematic diagram that needle bar switching device of the present invention is installed on sewing machine headstock position；
Fig. 4 is the axonometric chart of the present invention the first preferred embodiment ring-type needle bar switching device；
Fig. 5 is the exploded view of Fig. 4；
Fig. 6 is the partial cutaway view of Fig. 4；
Fig. 7 is the enlarged drawing that Fig. 6 needle bar engages with needle bar guide rod；
Fig. 8 is the enlarged drawing that needle bar and needle bar guide rod engage another embodiment；
Fig. 9 is the schematic diagram that the present invention the first preferred embodiment drives needle exchange；
Figure 10 is the schematic diagram that the present invention the first preferred embodiment carries out sewing；
Figure 11 be the present invention the first preferred embodiment control Guide Rail Design be the sectional drawing of grooving；
Figure 12 is the axonometric chart of the present invention the second preferred embodiment ring-type needle bar switching device；
Figure 13 is the side view of Figure 12；
Figure 14 is the axonometric chart that Figure 12 removes ring-type needle bar casket；
Figure 15 is the sectional view of Figure 14；
Figure 16 be the present invention the second preferred embodiment control Guide Rail Design be the sectional drawing of grooving；
Figure 17 be the present invention the second preferred embodiment control Guide Rail Design be the schematic perspective view of ring flange；
Figure 18 is the enlarged diagram that needle bar correspondence Figure 17 ring flange of the present invention is designed as block；
Figure 19 is the axonometric chart of the present invention the 3rd preferred embodiment line style needle bar switching device；
Figure 20 is the exploded view of Figure 19；
Figure 21 is the sectional drawing of Figure 19；
Figure 22 is the schematic diagram that the present invention the 3rd preferred embodiment drives needle exchange；
Figure 23 is the axonometric chart of the present invention the 4th preferred embodiment line style needle bar switching device；
Figure 24 is the axonometric chart that Figure 23 removes line style needle bar casket keeper；
Figure 25 is to face Figure 23 needle bar and the schematic diagram of needle bar guide rod clamping；And
Figure 26 is the axonometric chart of the third curved needle bar casket embodiment of the present invention.
[primary clustering symbol description]
(known) 315---longitudinal direction chute
10---board 32---ring-type needle bar casket keeper
11---machine frame 321---control guide rail
12---sewing head 321a---groove
13---flat board 321b---grooving
14---support frame 321c---ring flange
15---needle bar 322---longitudinal opening
16---board 323---flange
17---bracing frame 324---bores a hole
18---sewing head 33---needle bar
19---needle bar 331---needle
(present invention) 332---the first protuberance
20---sewing machine 333---swells
21---headstock 334---recess
22---needle bar mechanism 335---the second protuberance
23---crank connecting link 336---breach
30---needle bar switching device 337---block
31---ring-type needle bar casket 34---needle bar guide rod
311---articulated section 341---the first recess
312---axis hole 342---connecting portion
313---pivot 344---protuberance
314---needle bar hole 35---driving means
351---drives motor 371---needle bar hole
352---drive shaft 372---longitudinal direction chute
36---gear unit 38---line style needle bar casket keeper
361---gear train 381---control guide rail
362---gear train 382---longitudinal opening
363---gear 39---curved needle bar casket
364---tooth bar 391---needle bar hole
37---line style needle bar casket 392---longitudinal direction chute
Detailed description of the invention
There are deeper one layer of understanding the most full and accurate and understanding for ease of further structure, use and feature thereof to the present invention, now enumerate preferred embodiment, coordinate accompanying drawing to describe in detail as follows:
Refer to shown in Fig. 3, the present invention is mainly arranged in the needle bar mechanism 22 at sewing machine 20 headstock 21 position, particularly it is mutually assembled with the crank connecting link 23 in needle bar mechanism 22 so that the needle bar 33 on sewing position can be replaced needle means through the driving means 35 with positioning function.
Refer to shown in Fig. 4 to Fig. 6, in the first preferred embodiment, the present invention comprises a ring-type needle bar casket keeper 32 of ring-type needle bar casket 31, a plurality of needle bar 33, needle bar guide rod 34 with needle 331 and a driving means 35 and goes out a sewing machine needle bar switching device 30 to structure altogether.
It is extended with an articulated section 311 towards central authorities inside the present invention ring-type needle bar casket 31, and above-mentioned articulated section 311 forms an axis hole 312 in the shaft core position of above-mentioned ring-type needle bar casket 31, pivot joint is worn for a pivot 313, and above-mentioned ring-type needle bar casket 31 peripheral location is provided with the needle bar hole 314 that a plurality of interval row sets, circumferential arrangement state is presented between the most a plurality of needle bar holes 314, additionally each needle bar hole 314 towards above-mentioned ring-type needle bar casket 31 outer surface offer one be parallel to axle center and connection outside longitudinal chute 315, above-mentioned longitudinal chute 315 is extended to bottommost by the central section of above-mentioned ring-type needle bar casket 31, follow-up needle bar 33 is facilitated to be arranged in wherein by bottom up.
The present invention ring-type needle bar casket keeper 32 is sheathed on outside above-mentioned ring-type needle bar casket 31, and it is peripheral around the top of each longitudinal chute 315 to be provided with a control guide rail 321 in medial surface, and be additionally provided with the longitudinal opening 322 of above-mentioned ring-type needle bar casket keeper 32 medial and lateral of connection on above-mentioned control guide rail 321, and the another flange 323 in the top of above-mentioned longitudinal opening 322 and bottom projection one respectively with perforation 324 of above-mentioned ring-type needle bar casket keeper 32.
The a plurality of needle bar of the present invention 33 each be installed with respectively in a wherein needle bar hole 314 of above-mentioned ring-type needle bar casket 31, and each needle bar 33 surface is formed with one first protuberance 332, above-mentioned first protuberance 332 is arranged in the longitudinal opening 322 of above-mentioned longitudinal chute 315 and above-mentioned control guide rail 321 chimeric, wherein, it is positioned at needle bar 33 first protuberance 332 at above-mentioned longitudinal opening 322 and will expose to a focal length.
In graphic preferred embodiment, needle bar guide rod 34 of the present invention is positioned at outside the longitudinal opening 322 of above-mentioned ring-type needle bar casket keeper 32, and it is arranged in the perforation 324 of above-mentioned flange 323, surface has one first recess 341, to coordinate one to be engaged by the needle bar 33 that above-mentioned first protuberance 332 focal length exposes, reach the purpose being synchronized with the movement；And it is provided with a junction 342 at above-mentioned first recess 341 opposite face, use and coordinate the drive of above-mentioned crank connecting link 23 to carry out upper and lower motion.
Refer to shown in Fig. 7, for making above-mentioned needle bar 33 first protuberance 332 can consolidate clamping with above-mentioned needle bar guide rod 34 first recess 341, two contact surfaces are set to one with the protuberance 333 of guide ramp by the present invention the first protuberance 332, and more successfully can engage with the upper and lower contact surface of above-mentioned first recess 341.
But, chimeric mode between aforementioned needle bar 33 and needle bar guide rod 34 is only one of which and implements pattern, it is not in a limitative way, refer to shown in Fig. 8, that is above-mentioned needle bar 33 can intercourse with the first protuberance 332 on above-mentioned needle bar guide rod 34 and the first recess 341, above-mentioned needle bar 33 is changed and is set to a recess 334 being similar to above-mentioned first recess 341, and above-mentioned needle bar guide rod 34 changes and is set to a protuberance 344 being similar to above-mentioned first protuberance 332, or the most separately it is set to the snap-in structure of other various different patterns.
Referring again to Fig. 5 and Fig. 6, driving means 35 of the present invention comprises driving motor 351 and a gear unit 36, above-mentioned driving motor 351 is a stepper motor with positioning function, and has a drive shaft 352 through above-mentioned gear unit 36 to drive above-mentioned ring-type needle bar casket 31；And above-mentioned gear unit 36 is set to a gear train 361 being made up of three gears, said gear group 361 one end is articulated in above-mentioned drive shaft 352, the other end then closes and states ring-type needle bar casket 31 top gear, use the above-mentioned ring-type needle bar casket 31 of drive and carry out swing offset, change the relative position between each the needle bar hole 314 in above-mentioned ring-type needle bar casket 31 and above-mentioned needle bar guide rod 34.
Refer to shown in Fig. 9 and Figure 10, when above-mentioned driving motor 351 drives said gear group 361 and above-mentioned ring-type needle bar casket 31 swing offset, any one needle bar 33 in a plurality of needle bar hole 314 can be allowed to be selectively moved to an above-mentioned longitudinal opening of cooperation 322 and above-mentioned needle bar guide rod 34 forms the sewing position of linear array, and select running fix to arrive the needle bar 33 of above-mentioned sewing position, above-mentioned needle bar guide rod 34 will be connected in, and synchronized on drive carries out by above-mentioned needle bar guide rod 34, under axially-movable, remaining is not moved to the needle bar 33 of above-mentioned sewing position, then limited by above-mentioned control guide rail 321, cannot be carried out, under axially-movable.
Refer to shown in Figure 11, control guide rail 321 in the present invention the first preferred embodiment has upper and lower side support the groove 321a of effect except may be designed as one, with outside the projection that corresponding above-mentioned needle bar 33 first protuberance 332 is formed, also may be designed as a grooving 321b pattern, and formed support end by supporting above-mentioned first protuberance 332 on the downside of above-mentioned grooving 321b, upside then forms an open end, by the weight of needle bar 33 itself, is held on, lower position.
Refer to Figure 12 and Figure 13 and show second preferred embodiment of the present invention, it comprises a ring-type needle bar casket 31 equally, one ring-type needle bar casket keeper 32, a plurality of needle bars 33 with needle 331, one needle bar guide rod 34 and driving means 35 (not shown), wherein it is with at the Main Differences of the first preferred embodiment: ring-type needle bar casket keeper 32 and the needle bar guide rod 34 of the first preferred embodiment are positioned at the same side of above-mentioned ring-type needle bar casket 31, and the ring-type needle bar casket keeper 32 of the second preferred embodiment and needle bar guide rod 34 are positioned at the opposition side of above-mentioned ring-type needle bar casket 31.
Owing to the relative position relation between above-mentioned ring-type needle bar keeper 32, needle bar guide rod 34 and ring-type needle bar casket 31 changes, therefore, the component of part will be different with the first preferred embodiment, not in this to go forth for identical component, and the component changed is above-mentioned ring-type needle bar casket 31, ring-type needle bar casket keeper 32 and needle bar 33 respectively.
Referring to shown in Figure 14 and Figure 15, wherein changing section is: each needle bar hole 314 of above-mentioned ring-type needle bar casket 31 is to be respectively facing two relative lateral surface (medial surface and lateral surface) each to offer longitudinal chute 315 (not shown)；Above-mentioned ring-type needle bar casket keeper 32 is then to be sheathed on above-mentioned ring-type needle bar casket 31 inside, and is provided with a control guide rail 321 around the longitudinal chute 315 of each inside above-mentioned ring-type needle bar casket 31 in lateral surface；Each needle bar 33 is then that surface is formed with one first protuberance 332 and one second protuberance 335, above-mentioned first protuberance 332 is through the longitudinal chute 315 outside above-mentioned ring-type needle bar casket 31, with the above-mentioned mutual clamping of needle bar guide rod 34, additionally, above-mentioned second protuberance 335 is then through at the longitudinal chute 315 inside above-mentioned ring-type needle bar casket 31, and be embedded on the control guide rail 321 of above-mentioned ring-type needle bar casket keeper 32, one of them the needle bar 33 being positioned at above-mentioned longitudinal opening 322 carries out upper and lower axially-movable.
Refer to shown in Figure 16, in the second preferred embodiment, above-mentioned ring-type needle bar keeper 32 is equally set to a grooving 321b from top to bottom formed (similar Figure 11 structure), above-mentioned grooving 321b bottom side is made to be resisted against above-mentioned second protuberance 335 bottom support, equally by the weight of needle bar 33 itself, it is held on, lower position.
Additionally, in front taking off in various different enforcement pattern, all control guide rail 321 indent of above-mentioned ring-type needle bar keeper 32 is coordinated above-mentioned needle bar 33 first protuberance 332 or one of them projection of the second protuberance 335, but, this is only used with for convenience of illustrating, and is not in a limitative way the embedding and structure between above-mentioned control guide rail 321 and needle bar 33.Refer to shown in Figure 17, that is present tube guide rail 321 also can be protruded by above-mentioned ring-type needle bar casket keeper 32 surface and form a ring flange 321c, above-mentioned needle bar 33 then can additionally be set to a breach 336 or and be resisted against the snap-in structure of the various different conditions such as block 337 (as shown in figure 18) above above-mentioned ring flange 321c, positions with corresponding above-mentioned ring flange 321c.
From front taking off two preferred embodiments, the most above-mentioned ring-type needle bar casket keeper 32 and needle bar guide rod 34 relative to needle bar casket 31 relative position why, and which kind of structure the most above-mentioned needle bar 33 uses chimeric with between above-mentioned needle bar guide rod 34, ring-type needle bar keeper 32 three, all should contain in the technology of the present invention discloses.
In addition, refer to shown in Figure 19, in the 3rd preferred embodiment, the present invention comprises a line style needle bar casket 37, line style needle bar casket keeper 38, a plurality of needle bar 33, needle bar guide rod 34 with needle 331 and a driving means 35 and goes out a sewing machine needle bar switching device 30 to structure altogether.
Refer to shown in Figure 20 and Figure 21, line style needle bar casket 37 of the present invention has a plurality of needle bar hole 371 presenting linear interval arrangement, and each needle bar hole 371 is respectively facing two relative lateral surface and each offers a longitudinal chute 372 (the most single needle bar hole 371 has two longitudinal chutes 372), above-mentioned longitudinal chute 372 is positioned at the central section of above-mentioned line style needle bar casket 37.
Line style needle bar casket keeper 38 of the present invention is positioned at above-mentioned line style needle bar casket 37 side, and adjacent side is provided with a control guide rail 381 containing being placed on outside each longitudinal chute 372, and is additionally provided with the longitudinal opening 382 of a longitudinal extension on above-mentioned control guide rail 381.
The a plurality of needle bar of the present invention 33 each be installed with respectively in a wherein needle bar hole 371 of above-mentioned line style needle bar casket 37, and each needle bar 33 surface forms one group of first protuberance 332 and one second protuberance 335 being positioned at opposite end, above-mentioned first protuberance 332 is not arranged in longitudinal chute 372 of above-mentioned line style needle bar casket 37 side, and above-mentioned second protuberance 335 is then arranged in above-mentioned longitudinal chute 372 of line style needle bar casket 37 opposite side and the longitudinal opening 382 of above-mentioned control guide rail 381 chimeric.
Needle bar guide rod 34 of the present invention is positioned at above-mentioned line style needle bar casket 37 opposite side, relative with above-mentioned line style needle bar casket keeper 38, and surface has one first recess 341 and coordinates a needle bar 33 being positioned at above-mentioned longitudinal opening 382 position to engage, and reaches the purpose being synchronized with the movement；And above-mentioned first recess 341 opposite face is again provided with a junction 342, uses and coordinate the drive of above-mentioned crank connecting link 23 to carry out upper and lower motion.
In addition, the first protuberance 332 in the second preferred embodiment and the design of the contact surface between the second protuberance 335 are identical with the first preferred embodiment, and not in this to go forth；Additionally, the front chimeric mode taken off between needle bar 33 with needle bar guide rod 34 also as only facilitate illustration to be used, the snap-in structure of other various different patterns all should include in the present invention.
As it can be seen, in graphic embodiment, driving means 35 of the present invention comprises driving motor 351 and a gear train 362, above-mentioned driving motor 351 is similarly a stepper motor with positioning function, and has a drive shaft 352；And said gear group 362 one end has a gear 363 and is articulated in above-mentioned drive shaft 352, and it is provided with the fixing tooth bar 364 of a cooperation above-mentioned line style needle bar casket 37 in the other end, uses the above-mentioned line style needle bar casket 37 of drive and carry out straight-line displacement.
Refer to shown in Figure 22, when above-mentioned driving motor 351 drives said gear group 362 and above-mentioned line style needle bar casket 37 straight-line displacement, any one needle bar 33 in a plurality of needle bar hole 371 can be allowed equally to be selectively moved to an above-mentioned longitudinal opening of cooperation 382 and above-mentioned needle bar guide rod 34 forms the sewing position of linear array, and be synchronized to drive by above-mentioned needle bar guide rod 34 and carry out upper and lower axially-movable.
Furthermore, refer to the 4th preferred embodiment shown in Figure 23, it comprises a line style needle bar casket 37, line style needle bar casket keeper 38, a plurality of needle bar 33, needle bar guide rod 34 with needle 331 and a driving means 35 equally, is wherein as being at the Main Differences of the 3rd preferred embodiment that above-mentioned line style needle bar casket 37, relative position relation between line style needle bar keeper 38 and needle bar guide rod 34 change.
Referring to shown in Figure 24 and Figure 25, wherein changing section is: each needle bar hole 371 of above-mentioned line style needle bar casket 37 all offers single longitudinal chute 372 towards above-mentioned needle bar guide rod 34 side；Above-mentioned line style needle bar keeper 38 is between above-mentioned line style needle bar casket 37 and above-mentioned needle bar guide rod 34, and it being provided with a control guide rail 381 containing being placed on outside each longitudinal chute 372 in above-mentioned line style needle bar casket 37 adjacent side, above-mentioned control guide rail 381 is additionally provided with the longitudinal opening 382 of a longitudinal extension；And above-mentioned needle bar 33 is provided with one first protuberance 332 and is arranged in the longitudinal opening 382 of above-mentioned longitudinal chute 372 and above-mentioned control guide rail 381 chimeric.It is then identical with the 3rd preferred embodiment that other do not address part, and not in this to go forth.
In addition, needle bar casket of the present invention is except adopting ring-type or Alignment Design, certainly also other moulding can be designed as according to needs, refer to shown in Figure 26, the present invention also can design a curved needle bar casket 39, and on above-mentioned curved needle bar casket 39, it is provided with a plurality of curved spaced needle bar hole 391, and side, each needle bar hole 391 is provided with a longitudinal chute 392, and it is equiped with a needle bar 33, and the drive that above-mentioned curved needle bar casket 39 will transmit through above-mentioned driving means 35 carries out swinging displacement, use the relative position changed between above-mentioned a plurality of needle bar holes 391 and above-mentioned needle bar guide rod 34.
Finally, gear unit 36 in driving means 35 of the present invention is except adopting gear train 361 and the gear train 362 of aforementioned four embodiments, also other can be used such as multi-forms such as belt group, driving screw group, actuator, motor direct-drive or other executive modules, but all can actually reach the drive mechanism design of power transmission and locating effect.
Embodiment provided above is only not in a limitative way by the present invention for convenience of description, not from scope of the present invention, is familiar with various Simple transformeds and modification that industry technical staff can make, all must include in the range of patent protection of the present invention.
Claims (8)
1. a sewing machine needle bar switching device, it is characterised in that: comprise:
One ring-type needle bar casket, has the needle bar hole that a plurality of interval row sets, and described each needle bar hole side opening is provided with the longitudinal chute outside at least one connection；
One ring-type needle bar casket keeper, is positioned at the wherein side of described ring-type needle bar casket inner and outer, has one around the control guide rail around each longitudinal chute, and described control guide rail separately has a longitudinal opening；
A plurality of needle bars with needle, are located in the needle bar hole of described ring-type needle bar casket respectively, and are embedded in described longitudinal chute and described control guide rail；
One needle bar guide rod, is sticked in a wherein needle bar of corresponding described longitudinal opening position in described a plurality of needle bar, and coordinates the crank connecting link drive of sewing machine itself to carry out upper and lower motion；And
One driving means, in order to drive described ring-type needle bar casket and to have positioning function, makes one of them of described a plurality of needle bar hole can be selectively moved to a described longitudinal opening of cooperation and described needle bar guide rod forms the sewing position of linear array；
Wherein, selecting running fix to the needle bar of described sewing position, will be synchronized drive by described needle bar guide rod and carry out upper and lower axially-movable, remaining is not moved to the needle bar of described sewing position, then by described control guide rail limited cannot be upper and lower axially-movable.
Sewing machine needle bar switching device the most according to claim 1, it is characterised in that: described ring-type needle bar casket keeper and described needle bar guide rod are positioned at the same side of described ring-type needle bar casket.
Sewing machine needle bar switching device the most according to claim 2, it is characterized in that: described needle bar is provided with first protuberance being embedded in described control guide rail, and described needle bar guide rod is provided with the first recess of corresponding described first protuberance, to reach the purpose being mutually clamped and can being synchronized with the movement.
Sewing machine needle bar switching device the most according to claim 2, it is characterized in that: described needle bar is provided with a recess being embedded in described control guide rail, and described needle bar guide rod is provided with the protuberance of a corresponding described recess, to reach the purpose being mutually clamped and can being synchronized with the movement.
Sewing machine needle bar switching device the most according to claim 1, it is characterised in that: described ring-type needle bar casket keeper and described needle bar guide rod are positioned at the opposition side of described ring-type needle bar casket.
Sewing machine needle bar switching device the most according to claim 5, it is characterized in that: described needle bar is provided with one first protuberance and one second protuberance, described needle bar guide rod is provided with the first recess of corresponding described first protuberance, to reach the purpose being mutually clamped and can being synchronized with the movement, and described second protuberance is embedded in described control guide rail.
Sewing machine needle bar switching device the most according to claim 1, it is characterised in that: described control guide rail is set to one and is formed a groove or a grooving by described needle bar casket keeper concave surface, and described needle bar is provided with corresponding described groove or a projection for grooving.
Sewing machine needle bar switching device the most according to claim 1, it is characterized in that: described control guide rail is set to one and is formed a ring flange by described ring-type needle bar casket keeper surface protrusion, and the breach or that described needle bar is set to a correspondence is resisted against the block above described ring flange.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310082896.8A CN104047128B (en) | 2013-03-15 | 2013-03-15 | Sewing machine needle bar switching device |
| HK14111269.5A HK1197558A1 (en) | 2013-03-15 | 2014-11-06 | Sewing machine needle bar changing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310082896.8A CN104047128B (en) | 2013-03-15 | 2013-03-15 | Sewing machine needle bar switching device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104047128A CN104047128A (en) | 2014-09-17 |
| CN104047128B true CN104047128B (en) | 2016-08-03 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310082896.8A Active CN104047128B (en) | 2013-03-15 | 2013-03-15 | Sewing machine needle bar switching device |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN104047128B (en) |
| HK (1) | HK1197558A1 (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3118403A (en) * | 1964-01-21 | chambers | ||
| US4254721A (en) * | 1977-11-07 | 1981-03-10 | Maschinenfabrik Carl Zangs Aktiengesellschaft | Device for the intermittent interruption of the embroidery needle movement on embroidery- or sewing machines |
| CN101435139A (en) * | 2007-11-15 | 2009-05-20 | Juki株式会社 | Single needle switching apparatus of double-needle sewing machine |
| CN203113067U (en) * | 2013-03-15 | 2013-08-07 | 启翔股份有限公司 | Needle-bar switching device of sewing machine |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7478605B2 (en) * | 2005-09-30 | 2009-01-20 | Modra Technology Pty Ltd | Carpet making machinery |
-
2013
- 2013-03-15 CN CN201310082896.8A patent/CN104047128B/en active Active
-
2014
- 2014-11-06 HK HK14111269.5A patent/HK1197558A1/en not_active IP Right Cessation
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3118403A (en) * | 1964-01-21 | chambers | ||
| US4254721A (en) * | 1977-11-07 | 1981-03-10 | Maschinenfabrik Carl Zangs Aktiengesellschaft | Device for the intermittent interruption of the embroidery needle movement on embroidery- or sewing machines |
| CN101435139A (en) * | 2007-11-15 | 2009-05-20 | Juki株式会社 | Single needle switching apparatus of double-needle sewing machine |
| CN203113067U (en) * | 2013-03-15 | 2013-08-07 | 启翔股份有限公司 | Needle-bar switching device of sewing machine |
Also Published As
| Publication number | Publication date |
|---|---|
| HK1197558A1 (en) | 2015-01-23 |
| CN104047128A (en) | 2014-09-17 |
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