CN217266285U

CN217266285U - Thread hooking and cloth feeding assembly structure of sewing machine

Info

Publication number: CN217266285U
Application number: CN202220616656.6U
Authority: CN
Inventors: 张文鸿
Original assignee: Foshan Ukicra Electric Co ltd
Current assignee: Foshan Ukicra Electric Co ltd
Priority date: 2022-03-21
Filing date: 2022-03-21
Publication date: 2022-08-23
Anticipated expiration: 2032-03-21

Abstract

The utility model provides a sewing machine colludes line and work feed assembly structure, including work feed regulation seat, work feed pulling plate, U type connecting rod, work feed push rod, feed dog, rack connecting rod, collude dish, tray, work feed pulling plate installs on work feed regulation seat, connect reciprocal cam on the U type connecting rod, the one end and the work feed pulling plate of U type connecting rod are connected, the other end is connected with the work feed push rod installed on work feed push rod seat, the one end of keeping away from the U type connecting rod on the work feed push rod is installed with the work feed dog, the below of work feed dog is equipped with rack connecting rod, the one end that is close to the work feed dog on the rack connecting rod is equipped with the dish that colludes that is equipped with the rotating shuttle, the one end that is far away from the dish that colludes on the rack connecting rod is connected with reciprocal cam; the cloth feeding tooth can move left and right and back and forth, and the hook plate moves left and right to hook the thread, so that the structure is simple, the operation is fast and convenient, and the production development is facilitated.

Description

Thread hooking and cloth feeding assembly structure of sewing machine

Technical Field

The utility model belongs to the technical field of the sewing machine technique and specifically relates to a sewing machine colludes line and work feed assembly structure.

Background

A sewing machine is a machine that uses one or more sewing threads to form one or more stitches in a work material to interlace or stitch one or more layers of the work material. The sewing machine can sew fabrics such as cotton, hemp, silk, wool, artificial fiber and the like and products such as leather, plastic, paper and the like, and the sewed stitches are neat, beautiful, flat and firm, the sewing speed is high, and the use is simple and convenient.

The thread hooking and cloth feeding mechanism is an important part of the sewing machine, and can drive the hook plate to rotate and the cloth feeding teeth to reciprocate to feed cloth, and the sewing is realized through the movement of the thread hooking plate and the cloth feeding teeth; however, the existing sewing machine has a complicated structure in the aspects of thread hooking, cloth feeding and the like, and is not beneficial to production and development.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem, the utility model provides a sewing machine colludes line and work feed assembly structure.

In order to achieve the above purpose, the utility model discloses a realize through following technical scheme:

the utility model provides a sewing machine colludes line and work feed assembly structure, includes work feed regulation seat, work feed pulling plate, U type connecting rod, work feed push rod, feed dog, rack connecting rod, colludes dish, tray, work feed pulling plate installs on the work feed regulation seat, connect reciprocal cam on the U type connecting rod, the one end of U type connecting rod with the work feed pulling plate is connected, and the other end with install on work feed push rod seat the work feed push rod is connected, keep away from on the work feed push rod the one end of U type connecting rod is installed the feed dog, the below of work feed dog is equipped with the rack connecting rod, be close to on the rack connecting rod the one end of work feed dog is equipped with the dish that colludes of rotating shuttle, keep away from on the rack connecting rod the one end of colluding the dish with reciprocal cam connection, collude the dish the rotating shuttle, the work feed dog is all installed on the tray.

Furthermore, work feed pulling plate includes integrated into one piece's pulling pole, spout, regulation pole, the back of spout be equipped with connecting axle and the movable rod that the seat is connected are adjusted to the work feed.

Furthermore, the cloth feeding adjusting seat is provided with a connecting hole matched with the connecting shaft, an arc-shaped hole matched with the movable rod and a plurality of adjusting grooves, and the adjusting grooves are matched with the adjusting protrusions on the adjusting rods.

Furthermore, the adjusting groove sets up and has 4, and wherein the tilt up is provided with 3, and the downward sloping is provided with 1, and the downward sloping sets up the adjusting groove is located the tilt up setting the below of adjusting groove.

Further, the rack connecting rod comprises an integrally formed connecting rod main body and a driving structure, a rectangular gear groove is formed in the connecting rod main body, and a first gear on the gear groove is meshed with a second gear on the hook plate.

Furthermore, the feed dog is connected with the U-shaped connecting rod through a pin rod, the driving structure is arranged close to the lower end of the pin rod, and the driving structure comprises a bottom plate and an inclined block.

Furthermore, a limiting groove is formed in the tray, a limiting column is arranged on the cloth feeding tooth, and the limiting column is placed in the limiting groove.

Furthermore, the hook plate is fixed in the tray through a hook plate shaft, the rotating shuttle is arranged in the hook plate, and a hook plate cover is arranged on the tray.

Furthermore, the work feed push rod seat comprises 2 vertical plates which are oppositely arranged, pin holes are formed in the middle of the vertical plates, and the work feed push rod is connected with the vertical plates through pins matched with the pin holes.

Further, reciprocal cam includes integrated into one piece's connecting plate and cam, be equipped with on the connecting plate with the connecting rod that the rack and link is connected, be equipped with the drive shaft on the cam, the cam is installed on the U type groove of U type connecting rod.

The utility model has the advantages that: the reciprocating cam is respectively connected with the U-shaped connecting rod and the rack connecting rod, the U-shaped connecting rod is sequentially connected with the cloth feeding push rod and the cloth feeding teeth, the cloth feeding teeth can move up and down and back and forth under the rotation of the reciprocating cam, and the hook disc moves left and right to hook the thread, so that the cloth feeding device is simple in structure, quick and convenient to operate and beneficial to production development; the tray is arranged, so that the hook plate, the rotating shuttle, the cloth feeding teeth and the like in the tray are protected conveniently.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural view of the present invention;

FIG. 3 is a schematic view of the structure of the feed dog and the rack link of the present invention;

FIG. 4 is a schematic structural view of the middle hook plate and the rack link rod of the present invention;

FIG. 5 is a schematic view of the structure of the cloth feeding pulling plate of the present invention;

in the figure: 1. a cloth feeding adjusting seat; 101. an adjustment groove; 102. an arc-shaped hole; 2. a cloth feeding and pulling plate; 21. pulling a rod; 22. a chute; 23. adjusting a rod; 24. adjusting the protrusion; 25. a connecting shaft; 26. a movable rod; 3. a U-shaped connecting rod; 4. a reciprocating cam; 41. a cam; 42. a drive shaft; 43. a connecting rod; 5. a cloth feeding push rod; 6. a cloth feeding push rod seat; 61. a vertical plate; 7. a tray; 8. a feed dog; 81. a pin rod; 82. a limiting column; 9. hooking the disc cover; 10. a rotating shuttle; 11. a limiting groove; 12. a rack link; 13. a rectangular gear groove; 14. a drive structure; 141. a base plate; 142. a sloping block; 15. and (7) hooking the disc.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings:

as shown in fig. 1-5, a thread hooking and cloth feeding assembly structure of a sewing machine comprises a cloth feeding adjusting seat 1, a cloth feeding pulling plate 2, a U-shaped connecting rod 3, a cloth feeding push rod 5, a cloth feeding tooth 8, a rack connecting rod 12, a hooking disc 15 and a tray 7, wherein the cloth feeding pulling plate 2 is installed on the cloth feeding adjusting seat 1, the U-shaped connecting rod 3 is provided with a reciprocating cam 4, the reciprocating cam 4 comprises a connecting plate and a cam 41 which are integrally formed, the connecting plate is provided with a connecting shaft 25, the cam 41 is provided with a driving shaft 42, the driving shaft 42 is connected with a driving mechanism to drive the cam to rotate, and the cam 41 is installed on a U-shaped groove of the U-shaped connecting rod 3; one end of the U-shaped connecting rod 3 is connected with the cloth feeding pulling plate 2, the other end of the U-shaped connecting rod is connected with a cloth feeding push rod 5 installed on a cloth feeding push rod seat 6, the cloth feeding push rod seat 6 comprises 2 vertical plates 61 which are oppositely arranged, a pin hole is formed in the middle of each vertical plate 61, the cloth feeding push rod 5 is connected with the vertical plates 61 through pins matched with the pin holes, a cloth feeding tooth 8 is installed at one end, far away from the U-shaped connecting rod 3, of the cloth feeding push rod 5, a rack connecting rod 12 is arranged below the cloth feeding tooth 8, a hook disc 15 provided with a rotating shuttle 10 is arranged at one end, close to the cloth feeding tooth 8, of the rack connecting rod 12, one end, far away from the hook disc 15, of the rack connecting rod 12 is connected with a connecting rod 43 of a reciprocating cam 4, under the rotation of the reciprocating cam 4, the cloth feeding tooth 8 can achieve cloth feeding up-down and back and forth movement, and forth movement of the hook disc 15 is simultaneously, the structure is simple, the operation is rapid and convenient, and the production and development is facilitated; the hook disk 15, the rotating shuttle 10 and the cloth feeding teeth 8 are all installed on the tray 7, the hook disk 15 is arranged inside the tray 7, the rotating shuttle 10 is arranged inside the hook disk 15, the hook disk cover 9 is arranged on the tray 7, the hook disk 15 is fixedly connected with the tray 7 through a hook disk shaft, and the hook disk 15, the rotating shuttle 10 and the cloth feeding teeth 8 inside the hook disk are protected conveniently.

The cloth feeding pulling plate 2 comprises a pulling rod 21, a sliding groove 22 and an adjusting rod 23 which are integrally formed, a U-shaped connecting rod 3 is connected with the sliding groove 22 in a sliding mode, the back of the sliding groove 22 is provided with a connecting shaft 25 and a movable rod 26 which are connected with the cloth feeding adjusting seat 1, the cloth feeding adjusting seat 1 is provided with a connecting hole matched with the connecting shaft 25, an arc-shaped hole 102 matched with the movable rod 26 and a plurality of adjusting grooves 101, the adjusting grooves 101 are matched with adjusting protrusions 24 on the adjusting rod 23, the adjusting grooves 101 are obliquely arranged and are 4, 3 of the adjusting grooves are obliquely arranged upwards, 1 of the adjusting grooves is obliquely arranged downwards, and the adjusting grooves 101 which are obliquely arranged downwards are located below the adjusting grooves 101 which are obliquely arranged upwards; when the feed dog 8 carries out the work of feeding cloth, the speed of feeding cloth or the feeding cloth is being fallen down can be adjusted through the position of adjusting rod 23 in adjustment tank 101, and the speed of feeding cloth can be realized to the adjustment tank 101 that inclines upward, and slows down the feeding cloth speed from top to bottom on the adjustment tank 101 in proper order, and the feeding cloth can be realized falling down to the adjustment tank 101 that inclines down.

The rack connecting rod 12 comprises a connecting rod main body and a driving structure 14 which are integrally formed, a rectangular gear groove 13 is formed in the connecting rod main body, a first gear is arranged on one side inside the rectangular gear groove 13 and meshed with a second gear on the hook disc 15, and the rack connecting rod 12 drives the hook disc 15 to move; and the feed dog 8 is connected with the U-shaped connecting rod 3 through the pin rod 81, the driving structure 14 is arranged close to the lower end of the pin rod 81, the driving structure 14 comprises a bottom plate 141 and an inclined block 142, when the driving structure 14 moves left and right, the pin rod 81 goes up from the bottom plate 141 at the bottom of the inclined block 142 to the top of the inclined block 142 or the pin rod 81 goes down from the top of the inclined block 142 to the bottom plate 141 at the bottom of the inclined block 142, and thus the back and forth movement of the feed dog 8 is realized in a reciprocating cycle.

Wherein, the tray 7 is provided with a limit groove 11, the feed dog 8 is provided with a limit post 82, and the limit post 82 is placed in the limit groove 11, so that the excessive feed operation of the feed dog 8 is avoided, and the production is not influenced.

The utility model discloses a theory of operation does:

as shown in fig. 1-5, firstly, the adjusting protrusion 24 on the adjusting rod 23 is fixed in the adjusting groove 101 by pulling the rod 21, when the cloth is required to be fed, the adjusting protrusion 24 is fixed in 3 adjusting grooves 101 which are arranged in an upward inclined manner, and the cloth feeding speed is faster as the fixing position of the adjusting protrusion 24 is placed upwards, when the cloth is required to be fed, the adjusting protrusion 24 is fixed in 1 adjusting groove 101 which is arranged in a downward inclined manner, then the U-shaped connecting rod 3 and the rack connecting rod 12 are driven to move simultaneously under the rotation of the reciprocating cam 4, the cloth feeding push rod 5 and the cloth feeding teeth 8 are driven by the U-shaped connecting rod 3 to move, the hook disk 15 and the cloth feeding teeth 8 are driven by the rack connecting rod 12 to move, and finally the cloth feeding of the cloth feeding teeth 8 and the thread hooking operation of the hook disk 15 are realized under the movement of the cloth feeding teeth 8 and the hook disk 15.

The above is only the preferred embodiment of the present invention, and not the patent protection scope of the present invention is limited thereby, and all the equivalent structure changes made by the contents of the specification and the drawings are directly or indirectly applied to other related technical fields, and all the same principles are included in the protection scope of the present invention.

Claims

1. A sewing machine thread hooking and cloth feeding assembly structure is characterized by comprising a cloth feeding adjusting seat (1), a cloth feeding pulling plate (2), a U-shaped connecting rod (3), a cloth feeding push rod (5), cloth feeding teeth (8), a rack connecting rod (12), a hooking disc (15) and a tray (7), wherein the cloth feeding pulling plate (2) is installed on the cloth feeding adjusting seat (1), a reciprocating cam (4) is connected to the U-shaped connecting rod (3), one end of the U-shaped connecting rod (3) is connected with the cloth feeding pulling plate (2), the other end of the U-shaped connecting rod is connected with the cloth feeding push rod (5) installed on a cloth feeding push rod seat (6), the cloth feeding teeth (8) are installed at one end, far away from the U-shaped connecting rod (3), of the cloth feeding teeth (8) is provided with the rack connecting rod (12), the end, close to the cloth feeding teeth (8), of the rack connecting rod (12) is provided with the hooking disc (15) provided with a rotating shuttle (10), one end of the rack connecting rod (12) far away from the hook disc (15) is connected with the reciprocating cam (4), and the hook disc (15), the rotating shuttle (10) and the cloth feeding teeth (8) are all arranged on the tray (7).

2. The sewing machine thread hooking and feeding assembly structure according to claim 1, characterized in that the feeding pulling plate (2) comprises a pulling rod (21), a chute (22) and an adjusting rod (23) which are integrally formed, and a connecting shaft (25) and a movable rod (26) connected with the feeding adjusting seat (1) are arranged at the back of the chute (22).

3. The sewing machine thread hooking and feeding assembly structure according to claim 2, characterized in that the feeding adjustment seat (1) is provided with a connecting hole matched with the connecting shaft (25), an arc hole (102) matched with the movable rod (26), and a plurality of adjusting grooves (101), and the adjusting grooves (101) are matched with the adjusting protrusions (24) on the adjusting rod (23).

4. The sewing machine thread hooking and feeding assembly structure according to claim 3, wherein the number of the adjusting grooves (101) is 4, 3 are obliquely arranged upward, 1 is obliquely arranged downward, and the adjusting groove (101) obliquely arranged downward is positioned below the adjusting groove (101) obliquely arranged upward.

5. The sewing machine thread hooking and cloth feeding assembly structure according to claim 1, wherein the rack link (12) comprises a link body and a driving structure (14) which are integrally formed, the link body is provided with a rectangular gear groove (13), and a first gear on the gear groove is meshed with a second gear on the hook plate (15).

6. Sewing machine thread hooking and feeding assembly structure according to claim 5, characterized in that the feed dog (8) is connected to the U-shaped connecting rod (3) by means of a pin (81), the driving structure (14) being arranged close to the lower end of the pin (81), the driving structure (14) comprising a base plate (141) and a ramp (142).

7. The sewing machine thread hooking and feeding assembly structure according to claim 1, wherein the tray (7) is provided with a limiting groove (11), the feeding dog (8) is provided with a limiting post (82), and the limiting post (82) is placed in the limiting groove (11).

8. The sewing machine thread hooking and cloth feeding assembly structure according to claim 1, wherein the hooking disc (15) is fixed in the tray (7) through a hooking disc shaft, the rotating shuttle (10) is arranged inside the hooking disc (15), and the tray (7) is provided with a hooking disc cover (9).

9. The sewing machine thread hooking and feeding assembly structure as claimed in claim 1, wherein the feeding cloth pusher seat (6) comprises 2 vertical plates (61) oppositely arranged, a pin hole is formed in the middle of each vertical plate (61), and the feeding cloth pusher (5) is connected with the vertical plates (61) through pins matched with the pin holes.

10. A sewing machine thread hooking and feeding assembly structure as claimed in claim 1, characterized in that the reciprocating cam (4) comprises a connecting plate and a cam (41) which are integrally formed, the connecting plate is provided with a connecting rod (43) connected with the rack connecting rod (12), the cam (41) is provided with a driving shaft (42), and the cam (41) is installed on a U-shaped groove of the U-shaped connecting rod (3).