CN212771311U

CN212771311U - Anti-idle-rotation abrasion presser foot of sewing machine

Info

Publication number: CN212771311U
Application number: CN202020965944.3U
Authority: CN
Inventors: ***
Original assignee: Wujiang Dayi Machinery Co ltd
Current assignee: Wujiang Dayi Machinery Co ltd
Priority date: 2020-06-01
Filing date: 2020-06-01
Publication date: 2021-03-23
Anticipated expiration: 2030-06-01

Abstract

The utility model discloses a sewing machine anti-idle running wearing and tearing presser foot of sewing machine technical field, including fixed block, telescopic link, universal shaft and presser foot main part, the multiunit assembly recess has vertically been seted up to presser foot main part bottom, and the equal activity is provided with the roller mechanism that the structure is the same in the multiunit assembly recess, the utility model discloses be provided with roller mechanism, reduce the friction that the presser foot main part received through the roller main part, reduce the wearing and tearing that the presser foot main part received and make simultaneously to send cloth smooth and easy, roller mechanism adopts sleeve, removable pin and stress spring's cooperation to install to the assembly recess in, conveniently change or maintain when appearing damaging, guarantee long-term use quality.

Description

Anti-idle-rotation abrasion presser foot of sewing machine

Technical Field

The utility model relates to a sewing machine technical field specifically is a sewing machine idle running wearing and tearing presser foot.

Background

The sewing machine mainly comprises a machine head, a machine base, a transmission and a presser foot, and is a machine which forms a track on cloth and enables the cloth to be interwoven or sewed; the presser foot has the advantages that the presser foot has the function of pressing cloth on the cloth feeding teeth, the cloth is convenient to move, the presser foot is seriously abraded in the industrial sewing process, the presser foot is easy to damage and cannot be used, and therefore the presser foot capable of preventing idle rotation and abrasion of the sewing machine is provided.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a sewing machine prevents idle running wearing and tearing presser foot to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a sewing machine anti-idle rotation abrasion presser foot comprises a fixed block, a telescopic connecting rod, a universal shaft and a presser foot main body, wherein the top end of the telescopic connecting rod is fixedly connected with the bottom of the fixed block, the other end of the telescopic connecting rod is connected with the presser foot main body through the universal shaft, a plurality of groups of assembly grooves are longitudinally formed in the bottom of the presser foot main body, roller mechanisms with the same structure are movably arranged in the plurality of groups of assembly grooves, each roller mechanism comprises a roller main body, the bottom of the roller main body is positioned below the presser foot main body, the outer wall of the roller main body is provided with a wear-resistant layer, assembly blind holes are formed in the outer walls of the front side and the rear side of the roller main body, sleeves are fixedly arranged at the hole bottoms of the front side and the rear side of the assembly blind holes, movable pins are movably inserted at the opposite ends of the two groups of the sleeves, the inner walls of the front side and the rear side of the assembling groove are provided with movable blind holes matched with the movable pins.

Further, the front side and the rear side the shifting block is fixedly arranged in the middle of the outer wall of one side of the movable pin, the guide sliding blocks are arranged at the ends, close to the stress springs, of the top and the bottom outer wall of the movable pin, and the guide sliding grooves matched with the guide sliding blocks are longitudinally formed in the inner walls of the top and the bottom of the sleeve.

Furthermore, a universal shaft connecting seat is fixedly arranged at the bottom of the universal shaft, a protruding block is integrally formed at the top of the foot pressing plate main body, a groove matched with the universal shaft connecting seat is formed in the top of the protruding block, fixing mechanisms with the same structure are symmetrically arranged on the left side and the right side of the protruding block, and the universal shaft connecting seat is fixed in the groove through the fixing mechanisms.

Furthermore, the fixing mechanism comprises an inserting column inserted in the outer wall of the protruding block in an inserting mode, slots matched with the inserting column are formed in the outer walls of the left side and the right side of the universal shaft connecting seat, a pulling block is fixedly arranged at one end, far away from the universal shaft connecting seat, of the inserting column, the pulling block is located on the outer side of the protruding block, and a spring is sleeved on the outer wall of the inserting column.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses be provided with roller mechanism, reduce the friction that the presser foot main part received through the roller main part, it is smooth and easy to make the work feed simultaneously to reduce the wearing and tearing that the presser foot main part received, roller mechanism adopts the sleeve simultaneously, removable pin and stress spring's cooperation is installed to the assembly groove in, conveniently change or maintain when appearing damaging, guarantee long-term use quality, be provided with fixed establishment simultaneously, adopt the quick assembly disassembly of fixed establishment convenience presser foot main part, further the convenience is swiftly changed when the unable use of wearing and tearing is receiving in the presser foot main part, guarantee operating quality and job stabilization nature when improving work efficiency.

Drawings

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

fig. 2 is a left side view of the structure of the roller mechanism of the present invention.

In the figure: 1. a fixed block; 2. a telescopic connecting rod; 3. a cardan shaft; 31. a universal shaft connecting base; 4. a footpad body; 41. a bump; 42. assembling a groove; 5. a fixing mechanism; 51. inserting a column; 52. a spring; 53. pulling the block; 6. a roller mechanism; 61. a roller body; 62. a wear layer; 63. a sleeve; 64. a movable pin; 65. a stress spring.

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.

Referring to fig. 1-2, the present invention provides a technical solution: referring to fig. 1, an idle rotation wear prevention presser foot of a sewing machine comprises a fixed block 1, a telescopic connecting rod 2, a universal shaft 3 and a presser foot plate main body 4, wherein the fixed block 1, the telescopic connecting rod 2, the universal shaft 3 and the presser foot plate main body 4 are widely applied in the field, for example, "an idle rotation wear prevention presser foot of a sewing machine" proposed in chinese patent No. CN201822187159.5 is disclosed, and not detailed herein, the top end of the telescopic connecting rod 2 is fixedly connected with the bottom of the fixed block 1 and can be fixed by a fixing bolt, and the other end of the telescopic connecting rod 2 is connected with the presser foot plate main body 4 by the universal shaft 3;

referring to fig. 1, a plurality of groups of assembling grooves 42 are longitudinally formed at the bottom of the foot pressing plate main body 4, the vertical sections of the assembling grooves 42 are rectangular, roller mechanisms 6 with the same structure are movably arranged in the plurality of groups of assembling grooves 42, and the roller mechanisms 6 reduce the use wear of the foot pressing plate main body 4;

as shown in fig. 2: the roller mechanism 6 comprises a roller main body 61, the roller main body 61 is adopted to reduce abrasion and improve the smoothness of cloth feeding, the bottom of the roller main body 61 is positioned below the foot pressing plate main body 4, the distance between the bottom of the roller main body 61 and the foot pressing plate main body 4 is 2cm-4cm, the outer wall of the roller main body 61 is provided with a wear-resistant layer 62, the wear-resistant layer 62 improves the wear resistance of the roller main body 61, the roller mechanism is widely applied in the field and can be flexibly selected by people in the field, no detailed description is given herein, the outer walls of the front side and the rear side of the roller main body 61 are respectively provided with an assembly blind hole for assembling and installing a structure, the bottoms of the assembly blind holes of the front side and the rear side are respectively and fixedly provided with a sleeve 63, the opposite ends of the two groups of sleeves 63 are respectively movably inserted with a movable pin 64, one, make things convenient for its stable setting in assembly groove 42, and stress spring 65 other end is fixed with sleeve 63 near the one side inner wall at assembly blind hole bottom, and assembly groove 42 front and back side inner wall all sets up the activity blind hole (not shown in the figure) that matches with activity round pin 64.

As shown in fig. 2: the middle parts of the outer walls of one side of the front and rear movable pins 64 are fixedly provided with shifting blocks, the shifting blocks are convenient for a user to shift the movable pins 64 to enter the sleeve 63, so that the movable pins 64 are separated from the movable blind holes, disassembly is realized, one ends of the outer walls of the top and the bottom of the movable pins 64, which are close to the stress springs 65, are respectively provided with a guide sliding block, and the inner walls of the top and the bottom of the sleeve 63 are respectively and longitudinally provided with a guide sliding chute matched with the guide sliding block;

as shown in fig. 1: the bottom of the universal shaft 3 is fixedly provided with a universal shaft connecting seat 31, the universal shaft connecting seat 31 plays a role in connection while not influencing the use of the universal shaft 3, the top of the foot pressing plate main body 4 is integrally formed with a projection 41, the projection 41 is used for being matched with the universal shaft connecting seat 31, the top of the projection 41 is provided with a groove matched with the universal shaft connecting seat 31, positioning is achieved, a subsequent inserting column 51 can accurately enter the inserting groove conveniently, fixing mechanisms 5 with the same structure are symmetrically arranged on the left side and the right side of the projection 41, the universal shaft connecting seat 31 is fixed in the groove through the fixing mechanisms 5, and the fixing mechanisms 5 are adopted, so that the foot pressing plate main body 4 can be replaced quickly after long-;

as shown in fig. 1: fixing mechanism 5 is including pegging graft at the post 51 of inserting of lug 41 outer wall, the slot that matches with post 51 is all seted up and inserted to the outer wall of universal shaft connecting seat 31 left and right sides, it gets into the slot to insert post 51, realize the fixed with lug 41 of universal shaft connecting seat 31, the fixed piece 53 that draws that is provided with of one end that universal shaft connecting seat 31 was kept away from to insert post 51, draw the manual pulling of piece 53 convenience of use personnel, draw the piece 53 to be located the lug 41 outside, insert post 51 outer wall cover and be equipped with spring 52, spring 52 one end is fixed with drawing piece 53, the other end is fixed with lug 41, when not using, make post 51 of inserting be located the slot all the time, guarantee stable fixed, when using, convenient follow-up drive resets to post 51 of.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a sewing machine anti-idle running wearing and tearing presser foot, includes fixed block (1), telescopic connection rod (2), cardan shaft (3) and presser foot main part (4), telescopic connection rod (2) top and fixed block (1) bottom fixed connection, telescopic connection rod (2) other end passes through cardan shaft (3) and is connected its characterized in that with presser foot main part (4): a plurality of groups of assembling grooves (42) are longitudinally arranged at the bottom of the foot pressing plate main body (4), and roller mechanisms (6) with the same structure are movably arranged in the plurality of groups of assembly grooves (42), the roller mechanism (6) comprises a roller main body (61), the bottom of the roller main body (61) is positioned below the foot pressing plate main body (4), the outer wall of the roller main body (61) is provided with a wear-resistant layer (62), the outer walls of the front side and the rear side of the roller main body (61) are respectively provided with an assembly blind hole, sleeves (63) are fixedly arranged at the bottoms of the front and rear assembling blind holes, movable pins (64) are movably inserted at the opposite ends of the two groups of sleeves (63), and one end of the movable pin (64) close to the sleeve (63) is provided with a stress spring (65), and the other end of the stress spring (65) is fixed with the inner wall of one side of the sleeve (63) close to the bottom of the blind hole, the inner walls of the front side and the rear side of the assembling groove (42) are provided with movable blind holes matched with the movable pins (64).

2. The anti-idle-rotation wear presser foot of sewing machine according to claim 1, characterized in that: front and back side the shifting block is all fixed to be provided with in one side outer wall middle part of activity round pin (64), the top of activity round pin (64) and the one end that the bottom outer wall is close to stress spring (65) all are provided with the direction slider, and sleeve (63) top and bottom inner wall all vertically set up the direction spout that matches with the direction slider.

3. The anti-idle-rotation wear presser foot of sewing machine according to claim 1, characterized in that: the fixed cardan shaft connecting seat (31) that is provided with in cardan shaft (3) bottom, presser foot main part (4) top integrated into one piece is provided with lug (41), and the recess that matches with cardan shaft connecting seat (31) is seted up at lug (41) top, the bilateral symmetry of lug (41) is provided with fixed establishment (5) that the structure is the same, cardan shaft connecting seat (31) are fixed in the recess through fixed establishment (5).

4. The anti-idle-rotation wear presser foot of sewing machine according to claim 3, characterized in that: the fixing mechanism (5) comprises inserting columns (51) inserted in the outer walls of the protruding blocks (41) in an inserting mode, slots matched with the inserting columns (51) are formed in the outer walls of the left side and the right side of the universal shaft connecting seat (31), a pulling block (53) is fixedly arranged at one end, far away from the universal shaft connecting seat (31), of the inserting column (51), the pulling block (53) is located on the outer side of the protruding blocks (41), and springs (52) are sleeved on the outer walls of the inserting columns (51).