CN202559072U

CN202559072U - Rotating hook structure

Info

Publication number: CN202559072U
Application number: CN 201220137492
Authority: CN
Inventors: 罗千
Original assignee: Ningbo Supreme Electronic Machinery Co Ltd
Priority date: 2012-04-05
Filing date: 2012-04-05
Publication date: 2012-11-28
Anticipated expiration: 2022-04-05

Abstract

The utility model discloses a rotating hook structure. A first rotating hook is arranged through a rotating hook seat, and a first lower shaft used for driving the first rotating hook to work is connected onto the rotating hook seat. Simultaneously, the rotating hook seat is fixed on a bracket which is arranged in a machine base in sliding mode through a guide rail, so that the position between the first rotating hook and a second rotating hook can be adjusted conveniently. The rotating hook structure has the advantages of being compact in structure and convenient to install and maintain.

Description

A kind of rotating shuttle structure

Technical field

The utility model relates to a kind of Sewing machines that is used for the processing belt button loop, specifically is used for a kind of rotating shuttle structure of crosspointer nail button loop machine.

Background technology

Utility model patent title: follow closely the button loop machine automatically; The patent No.: 200720110843.2 disclose a kind of automatic nail button loop machine that is used for the processing belt button loop; Comprise sewing machine table; Head of sewing machine is installed on the platen, is fixed with the feeding table widget on the head, programme controlled presser foot device by PLC is installed on the feeding table widget; On platen, also be equipped with by the programme controlled commentaries on classics of PLC, feed mechanism and starting switch, on commentaries on classics, feed mechanism, be connected with programme controlled material cutting mechanism again by PLC.Presser foot device comprises with fixed block and is installed in the holder on the Sewing machines feeding table widget; This holder is provided with and its fixing presser feet support; The presser feet support is provided with two presser slide block that are installed in respectively on two take-up housings; In two presser slide block, be respectively equipped with again to drive simultaneously and carry out upper and lower two presser feets that are synchronized with the movement by first cylinder; Have the presser feet groove on the presser feet, be provided with the first presser feet base plate, second presser feet base plate that supplies the band button loop to place and the material blocking block that band button loop sewing position is positioned under the corresponding presser feet.Be respectively equipped with on the first presser feet base plate and the second presser feet base plate and the presser feet groove hole of sewing accordingly; Change, the head of feed mechanism is provided with and is installed in two four-cylinder and the 5th cylinders on the cylinder support respectively, on the cylinder support of four-cylinder, also is provided with waste material air blowing assembly.Automatically nail button loop machine can be realized the automatic sewing processing with button loop, but its operating efficiency is still waiting to improve.

Summary of the invention

The utility model technical problem to be solved is to above-mentioned prior art present situation, and the rotating shuttle structure that a kind of compact conformation is provided, is convenient to install.

The utility model solves the problems of the technologies described above the technical scheme that is adopted: a kind of rotating shuttle structure; Comprise first rotating shuttle and second rotating shuttle that are arranged in the support; Support is provided with the rotating shuttle seat that is used to install first rotating shuttle, and the rotating shuttle seat is connected with first lower shaft that is used to drive the first rotating shuttle work.The rotating shuttle seat is fixed on the carriage, and carriage is slidingly arranged in the support through guide rail.

For optimizing technique scheme, the utility model also comprises following improved technical scheme.

Above-mentioned rotating shuttle seat is provided with the rotating shuttle driving shaft that is connected with first rotating shuttle, the swinging axle that is used to drive the rotating shuttle driving shaft, and is connected with first lower shaft and is used to drive the rotating shuttle crank of swinging axle crankmotion.

Above-mentioned swinging axle is fixedly connected with wobble crank, is connected with the rotating shuttle connecting rod between rotating shuttle crank and the wobble crank.Swinging axle is made crankmotion through gear driven rotating shuttle driving shaft.

Above-mentioned carriage is connected with adjusting rod, and adjusting rod is connected with the adjusting driving mechanism that is used to adjust bracket locations.

Above-mentioned adjusting driving mechanism comprises the rotating shuttle adjusting motor that is used to drive the adjusting rod axially-movable.

Above-mentioned adjusting rod is connected with driving arm, and driving arm slides and is arranged on the axis of guide in the support, and rotating shuttle is regulated motor and is connected with the ball screw that is used to drive the driving arm motion.

The first above-mentioned lower shaft is a splined shaft, and an end of first lower shaft is connected with the rotating shuttle crank, and the other end matches with the interior spring bearing of support.Said first lower shaft is provided with the synchronizing wheel that is used to drive the rotation of first lower shaft, first lower shaft and synchronizing wheel and spring bearing axial sliding fit.

Above-mentioned rotating shuttle seat upper fixed is provided with first needle plate, and the bottom of first needle plate is provided with first thread cutter.

Compared with prior art, a kind of rotating shuttle structure of the utility model is installed first rotating shuttle through the rotating shuttle seat, on the rotating shuttle seat, is connected with first lower shaft that is used to drive the first rotating shuttle work.The rotating shuttle seat is fixed on the carriage simultaneously, and carriage is slidingly arranged in the support through guide rail, is convenient to regulate the position between first rotating shuttle and second rotating shuttle, has compact conformation, is convenient to the advantage of installation and maintenance.

Description of drawings

Fig. 1 is the perspective view of the utility model embodiment.

Fig. 2 is the side structure sketch map of Fig. 1.

Fig. 3 is the internal structure sketch map of Fig. 1.

Fig. 4 is the internal structure sketch map of Fig. 2.

Fig. 5 is the structural representation of drive mechanism among Fig. 3.

Fig. 6 is the front portion structure sketch map of Fig. 5.

Fig. 7 is the assembling decomposing schematic representation of Fig. 5.

Fig. 8 is the drive mechanism sketch map of first lower shaft among Fig. 7.

Fig. 9 is the structural representation of first needle plate and second needle plate among Fig. 7.

Figure 10 is the structural representation of feeding structure among Fig. 3.

Figure 11 is the assembling decomposing schematic representation of Figure 10.

Figure 12 is the structural representation of the first rotating shuttle governor motion among Fig. 3.

Figure 13 is the assembling decomposing schematic representation of Figure 12.

The specific embodiment

Embodiment to the utility model describes in further detail below in conjunction with accompanying drawing.

Fig. 1 is extremely shown in Figure 13 to be the structural representation of the utility model.

Reference numeral wherein is: support 1; First rotating shuttle 11; Second rotating shuttle 12; Rotating shuttle seat 13; Rotating shuttle driving shaft 16; Swinging axle 17; Wobble crank 17a; Spring bearing 18; Head 2; First eedle 21; Second eedle 22; First presser feet 23; Pressure foot 23a; Presser feet cylinder 23b; Second presser feet 24; Eedle seat 25; Presser feet position adjustment part 26; Shank 27; Eedle guide rail 28; Motor 3; Last axle 31; Eedle crank 31a; Eedle connecting rod 31b; Driving cam 31c; Eedle bent axle 31d; Crank portion 31e; First lower shaft 32; Synchronizing wheel 32a; Rotating shuttle crank 32b; Rotating shuttle connecting rod 32c; Second lower shaft 33; Thread take-up tension lever 34; Thread take-up tension lever back shaft 35; Lower shaft drive rod 36; Lower shaft crank 36a; Lower shaft gear 36b; Lower shaft connecting rod 38; Be with 39 synchronously; First needle plate 41; Second needle plate 42; Delivery sheet 5; Pedestal 50; First slide block 51; The first driver slot 51a; First motor 511; The first feeding bogie 512; Feeding tooth 513; First driving shaft 514; Second slide block 52; The second driver slot 52a; Second motor 521; The second feeding bogie 522; Motor feeding rod 523; Second driving shaft 524; Presser feet arm 53; Limit mounting support 54; Limiting plate 55; Adjusting rod 60; Carriage 61; Driving arm 62; The axis of guide 63; Ball screw 64; Rotating shuttle is regulated motor 65; Carriage rail 66; First stationary knife 71; First moving knife 72; First connecting rod 73; First trimming drives cylinder 74; Driving spring 80; Trimming back shaft 801; Second stationary knife 81; Second moving knife 82; Electromagnetic valve 83; Drive rod 84; Roller 84a; Drive link 85; Connecting rod 86; Back-moving spring 87; Tangent line lever 88; Back shaft 88a; Bearing pin 88b; Drive link seat 89; The first pipeline purging device 91; The second pipeline purging device 92.

To shown in Figure 4, the crosspointer of the utility model nail button loop machine comprises support 1 and head 2 like Fig. 1.

Head 2 is provided with first eedle 21 and second eedle 22 that is used for making respectively band button loop two ends.When making, first eedle 21 and second eedle 22 are sewed to the two ends of band button loop simultaneously, have improved operating efficiency greatly.

In support 1, be provided with first rotating shuttle 11 and second rotating shuttle 12 that is used to cooperate 22 work of second eedle that are used to cooperate 21 work of first eedle.Because first eedle 21 and second eedle 22 adopt the rotating shuttle structure of first rotating shuttle 11 and second rotating shuttle 12 to match respectively, when sewing, has the advantage of high speed, low noise.

Like Fig. 3 and shown in Figure 4, first eedle 21, second eedle 22, first rotating shuttle 11 and second rotating shuttle 12 are by same motor 3 driving work, and whole drive mechanism is simple, is convenient to safeguard.

Between first eedle 21 and first rotating shuttle 11, and be provided with the delivery sheet 5 that is used to place material between described second eedle 22 and second rotating shuttle 12.Be provided with first presser feet 23 that is used to cooperate delivery sheet 5 in first eedle, 21 1 sides, be provided with second presser feet 24 that is used to cooperate delivery sheet 5 in second eedle, 22 1 sides.First presser feet 23 and second presser feet 24 can be pressed in the material that needs are made on the delivery sheet 5, make material cooperate delivery sheet 5 motions.

Delivery sheet 5, first presser feet 23 and second presser feet 24 are connected with second slide block 52 that is used for moving feeding.Second slide block 52 be fitted with can with first slide block 51 of second slide block, 52 relative motions.First slide block 51 connects first motor 511 that is used to drive feeding.Second slide block 52 connects second motor 521 that is used to drive feeding.

Fig. 5 and shown in Figure 6 be the drive mechanism of crosspointer nail button loop machine; Comprise first eedle 21 and second eedle 22 that are arranged on head 2 and can move up and down, and be arranged on first rotating shuttle 11 and second rotating shuttle 12 that cooperates 22 work of second eedle that cooperates 21 work of first eedle in the support 1.

Afterbody installation at head 2 is provided with motor 3, and motor 3 is connected with the revolvable axle 31 of going up, axle 31 rotary works in the driving.The front end of last axle 31 drives first eedle 21 through drive mechanism and second eedle 22 moves up and down.

In the present embodiment, first eedle 21 and second eedle 22 are arranged on the eedle seat 25 that can move up and down, and eedle seat 25 is fixed with shank 27.In head 2, be provided with and be used for the eedle guide rail 28 that vectoring aircraft needle stand 25 moves up and down.Also be provided with the first pipeline purging device 91 and the second pipeline purging device 92 that is used for pipeline purging in the both sides of first eedle 21 and second eedle 22.The first pipeline purging device 91 and the second pipeline purging device 92 comprise the pipeline purging cylinder and by the pipeline purging bar of pipeline purging air cylinder driven, pipeline purging cylinder action when sewing finishes, and the pipeline purging bar is pulled out certain amount with upper thread, discharges the tension force on the upper thread, is convenient to trimming.

The front end of last axle 31 is fixedly connected with eedle crank 31a, and described eedle crank 31a is connected with eedle bent axle 31d, and the end of eedle connecting rod 31b and eedle crank 31a are rotationally connected, and the other end is used for driving machine needle stand 25 and moves up and down.When last axle 31 rotated, eedle connecting rod 31b received the guiding of eedle guide rail 28, drove eedle seat 25 and moved up and down.

Like Fig. 6 and shown in Figure 7, the lower end of eedle bent axle 31d and thread take-up tension lever 34 is rotatably assorted, and the other end of thread take-up tension lever 34 is shaped on through wires hole.Be provided with the thread take-up tension lever back shaft 35 that can rotate in the head 2, the middle part of the movable end of thread take-up tension lever back shaft 35 and thread take-up tension lever 34 is rotationally connected.When last 31 rotation works, eedle bent axle 31d just drives thread take-up tension lever 34 work.

As shown in Figure 5, in support 1, be provided with first lower shaft 32 and second lower shaft 33 that is used to drive second rotating shuttle, 12 reciprocal rotary works that are used to drive first rotating shuttle, 11 reciprocal rotary works.First lower shaft 32 and second lower shaft 33 link through drive mechanism and the described axle 31 of going up.

In the present embodiment, first lower shaft 32 is with 39 to drive 32 rotations of first lower shaft when last axle 31 rotates through being with 39 to go up axle 31 interlocks with described synchronously synchronously.The front end of first lower shaft 32 is connected with and is used to drive the back and forth rotating shuttle crank transmission structure of rotation of first rotating shuttle 11.

The rotating shuttle crank transmission structure comprises the rotating shuttle crank 32b that is connected with first lower shaft 32; Described rotating shuttle crank 32b is connected with wobble crank 17a through rotating shuttle connecting rod 32c, and described wobble crank 17a is connected with and is used to drive the back and forth swinging axle 17 of rotation of first rotating shuttle 11.

First rotating shuttle 11 is connected with rotating shuttle driving shaft 16, and rotating shuttle driving shaft 16 cooperates interlock through gear with the swinging axle 17 of ability crankmotion.When first lower shaft, 32 rotary works, first rotating shuttle 11 is reciprocal rotary work just.

Second lower shaft 33 is connected with second rotating shuttle 12.In the present embodiment, last axle 31 is shaped on the crank portion 31e that is used to drive 33 motions of second lower shaft, and crank portion 31e is connected with lower shaft connecting rod 38.Lower shaft connecting rod 38 is connected with and is used to drive the lower shaft crank 36a that second lower shaft 33 is made crankmotion.In support 1, be provided with lower shaft drive rod 36, lower shaft crank 36a is fixedly connected with lower shaft drive rod 36, and lower shaft drive rod 36 drives second lower shaft 33 through lower shaft gear 36b and makes crankmotion.

Like Fig. 3 and shown in Figure 4; The crosspointer nail button loop machine of the utility model; First rotating shuttle 11 is connected with the governor motion that is used to regulate distance between first rotating shuttle 11 and second rotating shuttle 12, can regulate the distance between first rotating shuttle 11 and second rotating shuttle 12 through governor motion, to adapt to different band button loop length.

Like Figure 12 and shown in Figure 13, in the present embodiment, governor motion comprises carriage 61, adjusting rod 60 that is connected with said carriage 61 that is movably set in the support 1 and the adjusting driving mechanism that is connected with adjusting rod 60.Regulate driving mechanism and comprise the rotating shuttle adjusting motor 65 that is used to drive adjusting rod 60 axially-movables.

Fixedly installing rotating shuttle seat 13, the first rotating shuttles 11 that are useful on installation first rotating shuttle 11 on the carriage 61 is rotatably assorted with rotating shuttle seat 13.The rotating shuttle driving shaft 16 that is connected with first rotating shuttle 11, the swinging axle 17 that is used to drive rotating shuttle driving shaft 16, and be connected with first lower shaft 32 and the rotating shuttle crank 32b that is used to drive swinging axle 17 crankmotions installs with rotating shuttle seat 13 respectively and cooperates.Swinging axle 17 is fixedly connected with wobble crank 17a, is connected with rotating shuttle connecting rod 32c between rotating shuttle crank 32b and the wobble crank 17a.First lower shaft 32 drives swinging axle 17 crankmotions through rotating shuttle crank 32b, and swinging axle 17 is made crankmotion through gear driven rotating shuttle driving shaft 16.

Adjusting rod 60 is connected with driving arm 62, and described driving arm 62 slides and is arranged on the axis of guide 63 in the support 1.Rotating shuttle is regulated motor 65 and is connected with the ball screw 64 that is used to drive driving arm 62 motions.Be provided with the carriage rail 66 that is used to lead in the bottom of carriage 61, rotating shuttle is regulated motor 65 work, drives carriage 61 through adjusting rod 60 and moves along carriage rail 66.

First rotating shuttle 11 drives first rotating shuttle, the 11 reciprocal rotating shuttle crank transmission structures that rotate through the rotating shuttle seat 13 integrated carriages 61 that are installed in being used to; Regulate motor 65 work through rotating shuttle, just can regulate distance between first rotating shuttle 11 and second rotating shuttle 12 with the fasten with a rope, string, etc. length at two ends of adaptive zone.

In the present embodiment, first lower shaft 32 is a splined shaft, and an end of first lower shaft 32 is connected with rotating shuttle crank 32b, and the other end matches with support 1 interior spring bearing 18.Said first lower shaft 32 is provided with the synchronizing wheel 32a that is used to drive 32 rotations of first lower shaft; First lower shaft 32 and described synchronizing wheel 32a and spring bearing 18 axial sliding fits; To adapt to the change of first rotating shuttle, 11 positions, be convenient to regulate the distance between first rotating shuttle 11 and second rotating shuttle 12.

As shown in Figure 9, rotating shuttle seat 13 is provided with first needle plate 41.The bottom of first needle plate 41 is provided with first thread cutter.First thread cutter comprises first stationary knife 71 and first moving knife 72.First moving knife 72 connects first trimming driving cylinder 74 through the first connecting rod 73 that is arranged in the rotating shuttle seat 13.First trimming drives cylinder 74 and is arranged on the carriage 61.First needle plate 41, first thread cutter can be with carriage 61 motions.

Above second rotating shuttle 12, be provided with second needle plate 42.Second needle plate, 42 bottoms are provided with second thread cutter.Distance between first needle plate 41 and second needle plate 42 is regulated motor 65 through rotating shuttle and is regulated.

As shown in Figure 7, last axle 31 is provided with the driving cam 31c that is used to drive second moving knife 82.Second moving knife 82 is connected with the drive rod 84 that can cooperate with driving cam 31c with disengaging movement.When drive rod 84 matched with driving cam 31c, driving cam 31c drove second moving knife, 82 trimmings.

Drive rod 84 is connected with and is used to control drive rod 84 and cooperates the gauge tap with disengaging movement with driving cam 31c.Gauge tap is provided with and is used to control the push rod that drive rod 84 and driving cam 31c carry out routing motion.In the present embodiment, gauge tap is an electromagnetic valve 83.

As shown in Figure 9, drive rod 84 is connected with and is used to drive the driving spring 80 that drive rod 84 and driving cam 31c carry out disengaging movement.

Drive rod 84 is slidingly arranged on the trimming back shaft 801, and driving spring 80 is sheathed on the trimming back shaft 801; Drive rod 84 is provided with the roller 84a that is used to cooperate driving cam 31c.Trimming back shaft 801 makes roller 84a match with the cam path of driving cam 31c to driving cam 31c motion to drive rod 84 in push rod effect lower edge.

Be connected with transmission component between the drive rod 84 and second moving knife 82.Transmission component comprises the drive link seat 89 and tangent line lever 88 that matches.Drive link seat 89 is connected with the connecting rod 86 with drive rod 84 interlocks, and tangent line lever 88 is connected with the drive link 85 that is connected with second moving knife 82.

The movable end and the connecting rod 86 of drive link seat 89 are rotationally connected, and another movable end matches with bearing pin 88b on the tangent line lever 88, and bearing pin 88b is connected with back-moving spring 87.

During near driving cam 31c, connecting rod 86 serves as to support to rotate with drive link seat 89 at drive rod 84.Drive rod 84 is with after driving cam 31c matches, and connecting rod 86 can axially-movable, and drives drive links 85 motions through tangent line lever 88, makes drive link 85 drive second moving knife, 82 trimmings.

Like Figure 10 and shown in Figure 11, the feeding structure of crosspointer nail button loop machine comprises first presser feet 23, second presser feet 24 and delivery sheet 5.Slide block travel mechanism comprises and is used to drive first slide block 51 and second slide block 52 that delivery sheet 5, first presser feet 23 and second presser feet 24 move at in-plane.

First slide block 51 slides and is arranged on the pedestal 50, and described second slide block 52 slides and is arranged on first slide block 51, and the glide direction of the glide direction of second slide block 52 and first slide block 51 is perpendicular.Like this, delivery sheet 5, first presser feet 23 and second presser feet 24 can move respectively in the directions X and the Y direction on plane.

First slide block 51 is connected with and is used to drive first motor, 511, the second slide blocks 52 that first slide block 51 slides and is connected with and is used to drive second motor 521 that second slide block 52 slides.

First presser feet 23 and second presser feet 24 are separately positioned on the presser feet arm 53.Presser feet arm 53 is connected with second slide block 52 respectively with delivery sheet 5.When 52 motions of second slide block, first presser feet 23 and second presser feet 24 cooperate delivery sheet 5 to move together.

First presser feet 23 and second presser feet 24 comprise pressure foot 23a respectively and are used to drive the presser feet cylinder 23b that pressure foot 23a moves up and down.

Presser feet arm 53 is provided with presser feet position adjustment part 26, the first presser feets 23 that are used to regulate distance between first presser feet 23 and second presser feet 24 and matches with the adjusting position of presser feet position adjustment part 26.First presser feet 23 can be regulated through fixture with the fixed position of presser feet position adjustment part 26 easily, to adapt to the length of different band button loop.

The limit mounting support 54 and limiting plate 55 that are used to cooperate material on the delivery sheet 5 are installed on second slide block 52.When the work beginning, material is delivered on the delivery sheet 5 of crosspointer nail button loop machine through feed mechanism earlier, through limit mounting support on the delivery sheet 5 54 and limiting plate 55, band button loop sewing position is positioned, and makes material be positioned at suitable sewing position.

First slide block 51 is shaped on the first driver slot 51a, and first motor 511 is connected with the first feeding bogie 512.The first feeding bogie 512 is shaped on feeding tooth 513, the first motors 511 that match with first motor 511 and moves through the gear driven first feeding bogie 512.Shown in figure 11, the first driver slot 51a is sagittal elongated slot, and the first feeding bogie 512 is provided with first driving shaft 514 that matches with the first driver slot 51a.When 511 work of first motor, first driving shaft 514 of the first feeding bogie 512 just can drive first slide block 51 along its guide rail transverse movement.

Second slide block 52 is provided with the second driver slot 52a, and the motor feeding rod 523 of second motor 521 through can axially-movable is connected with the second feeding bogie, 522, the second feeding bogies 522 and is shaped on second driving shaft 524 that matches with the second driver slot 52a.Shown in figure 11, the second driver slot 52a is horizontal elongated slot, and to setting, second driving shaft 524 through the second feeding bogie 522 drives second slide block 52 and moves upward in front and back along its guide rail along front and back for motor feeding rod 523.

The most preferred embodiment of the utility model is illustrated, and various variations of being made by those of ordinary skills or remodeling can not break away from the scope of the utility model.

Claims

1. rotating shuttle structure; Comprise first rotating shuttle (11) and second rotating shuttle (12) that are arranged in the support (1); It is characterized in that: described support (1) is provided with the rotating shuttle seat (13) that is used to install first rotating shuttle (11), and described rotating shuttle seat (13) is connected with first lower shaft (32) that is used to drive first rotating shuttle (11) work; Described rotating shuttle seat (13) is fixed on the carriage (61), and described carriage (61) is slidingly arranged in the support (1) through guide rail.

2. a kind of rotating shuttle structure according to claim 1; It is characterized in that: described rotating shuttle seat (13) is provided with the rotating shuttle driving shaft (16) that is connected with first rotating shuttle (11), the swinging axle (17) that is used to drive rotating shuttle driving shaft (16), and is connected with described first lower shaft (32) and is used to drive the rotating shuttle crank (32b) of swinging axle (17) crankmotion.

3. a kind of rotating shuttle structure according to claim 2 is characterized in that: described swinging axle (17) is fixedly connected with wobble crank (17a), is connected with rotating shuttle connecting rod (32c) between described rotating shuttle crank (32b) and the wobble crank (17a); Described swinging axle (17) is made crankmotion through gear driven rotating shuttle driving shaft (16).

4. a kind of rotating shuttle structure according to claim 3 is characterized in that: described carriage (61) is connected with adjusting rod (60), and described adjusting rod (60) is connected with the adjusting driving mechanism that is used to adjust carriage (61) position.

5. a kind of rotating shuttle structure according to claim 4 is characterized in that: described adjusting driving mechanism comprises the rotating shuttle adjusting motor (65) that is used to drive adjusting rod (60) axially-movable.

6. a kind of rotating shuttle structure according to claim 5; It is characterized in that: described adjusting rod (60) is connected with driving arm (62); Described driving arm (62) slides and is arranged on the axis of guide (63) in the support (1), and described rotating shuttle is regulated motor (65) and is connected with the ball screw (64) that is used to drive driving arm (62) motion.

7. a kind of rotating shuttle structure according to claim 6 is characterized in that: said first lower shaft (32) is a splined shaft, and an end of first lower shaft (32) is connected with rotating shuttle crank (32b), and the other end matches with the interior spring bearing (18) of support (1); Said first lower shaft (32) is provided with the synchronizing wheel (32a) that is used to drive first lower shaft (32) rotation, described first lower shaft (32) and described synchronizing wheel (32a) and spring bearing (18) axial sliding fit.

8. a kind of rotating shuttle structure according to claim 7 is characterized in that: described rotating shuttle seat (13) upper fixed is provided with first needle plate (41), and the bottom of said first needle plate (41) is provided with first thread cutter.