CN214831083U

CN214831083U - Wire bonding mechanism of sewing machine

Info

Publication number: CN214831083U
Application number: CN202121337028.6U
Authority: CN
Inventors: 谢作县
Original assignee: Wenzhou Chuangjie Cleaning Daily Necessities Co ltd
Current assignee: Wenzhou Chuangjie Cleaning Daily Necessities Co ltd
Priority date: 2021-06-16
Filing date: 2021-06-16
Publication date: 2021-11-23
Anticipated expiration: 2031-06-16

Abstract

The utility model discloses a routing mechanism of a sewing machine, which comprises a routing shaft, a routing cam and a mounting plate; the wire passing assembly comprises a wire passing seat arranged on the mounting plate, two support plates are symmetrically arranged on the wire passing seat, a first support shaft and a second support shaft are arranged between the two support plates, a first roller is rotatably arranged on the first support shaft, a second roller is rotatably arranged on the second support shaft, the peripheries of the first roller and the second roller are arranged in a tangent manner, a first annular groove is formed in the first roller along the circumferential direction, a second annular groove corresponding to the first annular groove is formed in the second roller, and a wire passing channel for a wire to pass through is formed between the lower part of the first annular groove and the upper part of the second annular groove; the routing cam is of a solid structure, and the edges of the two sides of the routing cam are provided with round chamfers. The utility model discloses the probability that the broken string appears when not only can showing the reduction routing, even the kinking phenomenon also can not appear in the machine function after the broken string moreover.

Description

Wire bonding mechanism of sewing machine

Technical Field

The utility model relates to a sewing machine technical field especially relates to a sewing machine's routing mechanism.

Background

The sewing machine comprises a household sewing machine and an industrial sewing machine, the utilization rate of the household sewing machine is very low along with the improvement of the living standard of people, on the contrary, the industrial sewing machine is used in large quantity, the large-scale batch production of clothes can be realized through intelligent control, and the production efficiency and the quality are higher than those of the household sewing machine. The present industrial sewing machines (hereinafter referred to as sewing machines) are continuously developed, and the structure and function of the sewing machines are more perfect. The wire bonding cam structure of the sewing machine used at present comprises a left wire bonding cam, a right wire bonding cam and a wire bonding cam cushion block, wherein the left wire bonding cam and the right wire bonding cam are arranged on a wire bonding sheet seat, the wire bonding sheet seat is arranged on a wire bonding shaft and can synchronously rotate along with the wire bonding shaft, and the wire bonding cam cushion block is arranged in the middle of the left wire bonding cam and the right wire bonding cam. In the routing process, the wire is subjected to large friction force and local stress of the routing cam and the wire passing piece, so that the wire is occasionally broken, the wire is wound on the routing shaft, the winding at the position is difficult to clean, and a large amount of time is wasted. There is a need for a cord threading mechanism that effectively prevents the cord from being wound around the cord threading spool.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a sewing machine's routing mechanism, the utility model discloses not only can show the probability that appears the broken string when reducing the routing, even the kinking phenomenon can not appear in the machine function after the broken string moreover yet.

In order to achieve the above object, the utility model provides a following technical scheme: a routing mechanism of a sewing machine comprises a routing shaft, a routing cam and a mounting plate, wherein the mounting plate is arranged on a sewing machine body, the routing cam is installed on the routing shaft in a linkage mode, and a strip-shaped hole for the routing cam to penetrate through is formed in the mounting plate; the wire passing assembly comprises a wire passing seat arranged on the mounting plate, two support plates are symmetrically arranged on the wire passing seat, a first support shaft and a second support shaft are arranged between the two support plates, a first roller is rotatably arranged on the first support shaft, a second roller is rotatably arranged on the second support shaft, the peripheries of the first roller and the second roller are arranged in a tangent manner, a first annular groove is formed in the first roller along the circumferential direction, a second annular groove corresponding to the first annular groove is formed in the second roller, and a wire passing channel for a wire to pass through is formed between the lower part of the first annular groove and the upper part of the second annular groove; the routing cam is of a solid structure, and the edges of the two sides of the routing cam are provided with round chamfers.

Through adopting above-mentioned technical scheme, the line is in proper order from one of them wire passing channel, the routing cam, another wire passing channel passes through, wherein, it is rotatable to form two gyro wheels of wire passing channel, and the contact surface is slick and sly, the friction between line and the wire passing channel has been reduced greatly, and solid routing cam has also increased the contact surface with the line, and routing cam round chamfer's design has avoided producing great local stress to the line, the probability that appears breaking when further having reduced the routing, and routing cam solid construction's design, the problem of kinking has appeared in the machine operation after having solved original breaking.

The utility model is further arranged in that the supporting plates are provided with a first round hole for the first supporting shaft to pass through and a second round hole for the second supporting shaft to pass through, the parts of the first supporting shaft close to the two ends are respectively provided with a first annular clamping groove, two first annular clamping grooves are respectively embedded with a first clamping spring, and the two first clamping springs respectively support the outer sides of the two supporting plates; and the parts, close to the two ends, of the second supporting shaft are respectively provided with a second annular clamping groove, a second clamping spring is respectively embedded in the two second annular clamping grooves, and the two second clamping springs respectively abut against the outer sides of the two supporting plates.

Through adopting above-mentioned technical scheme, can realize the quick installation of first back shaft and second back shaft and carry out the axial spacing to the two, first back shaft and second back shaft produce axial displacement when avoiding using.

The utility model discloses further set up to, set up the first through-hole that supplies first back shaft to pass along the axial on the first gyro wheel to first through-hole and first back shaft clearance fit, set up the second through-hole that supplies the second back shaft to pass along the axial on the second gyro wheel to second through-hole and second back shaft clearance fit.

Through adopting above-mentioned technical scheme, first gyro wheel produces the roll with the second gyro wheel when can realizing that the line removes, and then reduces the friction between line and the wire passing channel.

The utility model discloses further set up to, the cross section of first ring channel and second ring channel is semi-circular shape.

By adopting the technical scheme, the contact surface between the wire and the wire is smoother, the wire is prevented from being subjected to larger local stress, and the probability of short wires can be reduced.

The utility model discloses further set up to, a spout has been seted up respectively to the both sides that lie in the routing cam on the mounting panel, the spout extends to one side of mounting panel, the bottom of crossing the line seat is equipped with the slide, the slide slides and sets up in the spout that corresponds to be equipped with on the spout and be used for supporting low slide in slide upper end and constitute spacing convex part.

Through adopting above-mentioned technical scheme, can have specification and the mounted position of routing cam more and adjust the position of line seat in a flexible way, can promote this commonality of crossing the line subassembly.

The utility model discloses further set up to, the both sides of slide are equipped with arc location convex part, evenly be provided with along length direction on two inside walls of spout with a plurality of arc location concave parts of arc location convex part looks adaptation.

Through adopting above-mentioned technical scheme, not only can fix a position the slide, make its slide difficult emergence when setting for the machine operation behind the position remove, be convenient for moreover slide two slides to routing cam bilateral symmetry's position to guarantee two wire passing channel's symmetry.

The utility model discloses further set up to, the both ends of slide are equipped with a toper guide part respectively.

Through adopting above-mentioned technical scheme, toper guide part plays the guide effect to the slide, makes the slide can slide more smoothly in the spout.

Drawings

Fig. 1 is a schematic overall structure diagram of the present invention;

fig. 2 is a schematic structural view of the wire passing assembly of the present invention;

fig. 3 is a cross-sectional view of the wire passing assembly of the present invention;

FIG. 4 is a right side view of the utility model in its entirety;

fig. 5 is a sectional view a-a of fig. 4.

In the figure: 1. coiling a bobbin; 2. routing a cam; 3. mounting a plate; 4. a strip-shaped hole; 5. a wire passing assembly; 6. a wire passing seat; 7. a support plate; 8. a first support shaft; 9. a second support shaft; 10. a first roller; 11. a second roller; 12. a first annular groove; 13. a second annular groove; 14. a wire passage; 15. a first circular hole; 16. a second circular hole; 17. a first ring-shaped card slot; 18. a first clamp spring; 19. a second annular card slot; 20. a second clamp spring; 21. a first through hole; 22. a second through hole; 23. a chute; 24. a slide plate; 25. a limiting convex part; 26. an arc-shaped positioning convex part; 27. an arc-shaped positioning concave part; 28. a tapered guide portion; 29. and (6) rounding and chamfering.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Example (b): the routing mechanism of the sewing machine shown in the attached figures 1-5 comprises a routing shaft 1, a routing cam 2 and a mounting plate 3 arranged on a sewing machine body, wherein the routing cam 2 is installed on the routing shaft 1 in a linkage manner (namely, the routing shaft 1 is provided with a rectangular part, the routing cam 2 is provided with a rectangular hole matched with the rectangular part), and the mounting plate 3 is provided with a strip-shaped hole 4 for the routing cam 2 to pass through; the wire bonding mechanism further comprises wire passing assemblies 5 arranged on two sides of a wire bonding cam 2, each wire passing assembly 5 comprises a wire passing seat 6 arranged on a mounting plate 3, two support plates 7 are symmetrically arranged on each wire passing seat 6, a first support shaft 8 and a second support shaft 9 are arranged between the two support plates 7, a first roller 10 is rotatably arranged on each first support shaft 8, a second roller 11 is rotatably arranged on each second support shaft 9, the peripheries of the first roller 10 and the second roller 11 are arranged in a tangent mode, namely the first roller 10 and the second roller 11 are in extrusion fit, one roller can drive the other roller to rotate by rotating, a first annular groove 12 is formed in the first roller 10 along the circumferential direction, a second annular groove 13 corresponding to the first annular groove 12 is formed in the second roller 11, and a wire passing channel 14 for a wire to pass through is formed between the lower portion of the first annular groove 12 and the upper portion of the second annular groove 13; the routing cam 2 is of a solid structure, and the edges of two sides of the routing cam 2 are provided with round chamfers 29. The line passes through from one of them wire passing channel 14, routing cam 2, another wire passing channel 14 in proper order, wherein, two gyro wheels that form wire passing channel 14 are rotatable, and the contact surface is slick and sly, the friction between line and wire passing channel 14 has been reduced greatly, and solid routing cam 2 has also increased the contact surface with the line, and routing cam 2 round chamfer 29's design has avoided producing great local stress to the line, the probability that appears breaking during the routing has further been reduced, and routing cam 2 solid construction's design, the problem that the kinking appears in the operation of machine after having solved original breaking.

As shown in fig. 3, a first round hole 15 through which the first support shaft 8 passes and a second round hole 16 through which the second support shaft 9 passes are formed in the support plate 7, a first annular clamping groove 17 is formed in each of the portions, close to the two ends, of the first support shaft 8, a first clamping spring 18 is embedded in each of the two first annular clamping grooves 17, and the two first clamping springs 18 abut against the outer sides of the two support plates 7; the second support shaft 9 is provided with a second annular clamping groove 19 at a position close to the two ends, the two second annular clamping grooves 19 are respectively embedded with a second clamping spring 20, and the two second clamping springs 20 respectively abut against the outer sides of the two support plates 7. This structure can realize the quick installation of first back shaft 8 and second back shaft 9 and carry out the axial to the two spacing, and first back shaft 8 and second back shaft 9 produce axial displacement when avoiding using.

As shown in fig. 3, the first roller 10 is axially provided with a first through hole 21 for the first support shaft 8 to pass through, the first through hole 21 is in clearance fit with the first support shaft 8, the second roller 11 is axially provided with a second through hole 22 for the second support shaft 9 to pass through, and the second through hole 22 is in clearance fit with the second support shaft 9. The design can realize that the first roller 10 and the second roller 11 roll when the wire moves, thereby reducing the friction between the wire and the wire passing channel 14.

As shown in fig. 3, the cross sections of the first annular groove 12 and the second annular groove 13 are both semicircular, and the design makes the contact surface with the wire smoother, thereby avoiding the wire from being subjected to larger local stress and reducing the probability of short wire.

As shown in fig. 4 and fig. 5, two sliding grooves 23 are respectively formed in the mounting plate 3 at two sides of the routing cam 2, the sliding grooves 23 extend to one side of the mounting plate 3, a sliding plate 24 is arranged at the bottom of the wire passing base 6, the sliding plate 24 is slidably arranged in the corresponding sliding groove 23, and a limiting convex portion 25 for limiting is formed on the sliding groove 23 by abutting against the lower sliding plate 24 at the upper end of the sliding plate 24. The design can be used for flexibly adjusting the position of the wire passing seat 6 by further adopting the specification and the installation position of the routing cam 2, and the universality of the wire passing assembly 5 can be improved.

As shown in fig. 4 and 5, arc-shaped positioning protrusions 26 are disposed on two sides of the sliding plate 24, a plurality of arc-shaped positioning recesses 27 matched with the arc-shaped positioning protrusions 26 are uniformly disposed on two inner side walls of the sliding chute 23 along the length direction, and the plurality of arc-shaped positioning recesses 27 on the same side form a wave shape. This design not only can fix a position slide 24, makes its slip difficult emergence when setting for the machine operation behind the position remove, is convenient for moreover slide two slides 24 to the position of 2 bilateral symmetry of routing cam to guarantee two line channels 14's symmetry.

As shown in fig. 2, two ends of the sliding plate 24 are respectively provided with a tapered guide portion 28, and the tapered guide portions 28 guide the sliding plate 24 so that the sliding plate 24 can slide more smoothly in the sliding groove 23.

Claims

1. A routing mechanism of a sewing machine comprises a routing shaft (1), a routing cam (2) and a mounting plate (3) arranged on a sewing machine body, wherein the routing cam (2) is mounted on the routing shaft (1) in a linkage manner, and a strip-shaped hole (4) for the routing cam (2) to pass through is formed in the mounting plate (3); the method is characterized in that: also comprises a wire passing component (5) arranged at two sides of the routing cam (2), the wire passing component (5) comprises a wire passing seat (6) arranged on the mounting plate (3), two supporting plates (7) are symmetrically arranged on the wire passing seat (6), a first supporting shaft (8) and a second supporting shaft (9) are arranged between the two supporting plates (7), a first roller (10) is rotatably arranged on the first supporting shaft (8), a second roller (11) is rotatably arranged on the second supporting shaft (9), the peripheries of the first roller (10) and the second roller (11) are arranged in a tangent mode, a first annular groove (12) is formed in the first roller (10) along the circumferential direction, a second annular groove (13) corresponding to the first annular groove (12) is formed in the second roller (11), and a wire passing channel (14) for a wire to pass through is formed between the lower portion of the first annular groove (12) and the upper portion of the second annular groove (13); the routing cam (2) is of a solid structure, and round chamfers (29) are arranged on the edges of the two sides of the routing cam (2).

2. The thread bonding mechanism of a sewing machine according to claim 1, wherein: the supporting plate (7) is provided with a first round hole (15) for a first supporting shaft (8) to pass through and a second round hole (16) for a second supporting shaft (9) to pass through, the parts, close to the two ends, of the first supporting shaft (8) are respectively provided with a first annular clamping groove (17), the two first annular clamping grooves (17) are respectively embedded with a first clamping spring (18), and the two first clamping springs (18) respectively abut against the outer sides of the two supporting plates (7); the second support shaft (9) is provided with a second annular clamping groove (19) at the position close to the two ends, the two second annular clamping grooves (19) are respectively embedded with a second clamping spring (20), and the two second clamping springs (20) respectively abut against the outer sides of the two support plates (7).

3. The thread bonding mechanism of a sewing machine according to claim 1, wherein: first through-hole (21) that supplies first support shaft (8) to pass are seted up along the axial on first gyro wheel (10) to first through-hole (21) and first support shaft (8) clearance fit, second through-hole (22) that supply second back shaft (9) to pass are seted up along the axial on second gyro wheel (11), and second through-hole (22) and second back shaft (9) clearance fit.

4. The thread bonding mechanism of a sewing machine according to claim 1, wherein: the cross sections of the first annular groove (12) and the second annular groove (13) are both semicircular.

5. The thread bonding mechanism of a sewing machine according to claim 1, wherein: one spout (23) have been seted up respectively to the both sides that lie in routing cam (2) on mounting panel (3), spout (23) extend to one side of mounting panel (3), the bottom of crossing line seat (6) is equipped with slide (24), slide (24) slide and set up in corresponding spout (23) to be equipped with on spout (23) and be used for supporting low slide (24) in slide (24) upper end and constitute spacing convex part (25).

6. The thread bonding mechanism of a sewing machine according to claim 5, wherein: arc positioning convex parts (26) are arranged on two sides of the sliding plate (24), and a plurality of arc positioning concave parts (27) matched with the arc positioning convex parts (26) are uniformly arranged on two inner side walls of the sliding groove (23) along the length direction.

7. The thread bonding mechanism of a sewing machine according to claim 5, wherein: two ends of the sliding plate (24) are respectively provided with a conical guide part (28).