CN216615068U

CN216615068U - Tool for sewing plastic fittings

Info

Publication number: CN216615068U
Application number: CN202123249114.4U
Authority: CN
Inventors: 刘丹
Original assignee: Shanghai Yanxin Auto Seating Parts Co ltd
Current assignee: Shanghai Yanxin Auto Seating Parts Co ltd
Priority date: 2021-12-22
Filing date: 2021-12-22
Publication date: 2022-05-27
Anticipated expiration: 2031-12-22

Abstract

The utility model relates to a tool for sewing a plastic part, which comprises an inner presser foot (1) and an outer presser foot (2) which are matched with each other and used for pressing a strip-shaped plastic part (3); a guide groove (11) for the strip-shaped plastic part (3) to pass through is formed below the inner presser foot (1); a groove (21) for guiding and pressing the strip-shaped plastic piece (3) is formed below the outer presser foot (2); during sewing, the positions of the guide groove (11) and the groove (21) are matched with each other, and the strip-shaped plastic part (3) penetrates through the guide groove (11) and the groove (21). Compared with the prior art, the utility model has the advantages of wide application range, stability, reliability, improved quality, simple operation and the like.

Description

Tool for sewing plastic fittings

Technical Field

The utility model relates to the field of sewing tools, in particular to a tool for sewing a plastic accessory.

Background

The sewing machine consists of four parts, including head, base, transmission and accessories. The head is an integral part of the sewing machine. The sewing machine consists of four mechanisms of material needling, thread hooking, thread picking and feeding, auxiliary mechanisms of winding, material pressing, tooth falling and the like, and the motion of the mechanisms is reasonably matched and works circularly to sew up sewing materials.

The transmission part of the sewing machine is composed of a frame, a hand crank or a motor and the like. The frame is the pillar of the machine, supporting the bedplate and the footboard. When the device is used, an operator steps on the pedal plate, the belt pulley is driven to rotate through the crank, and the machine head is driven to rotate through the belt. Most hand-operated devices or motors are directly mounted on the handpiece.

However, in the sewing process of the plastic part, special tools are needed to realize the sewing process. In the sewing process, the universal presser foot cannot normally press the plastic fittings, the plastic fittings can move left and right, and finally, the finished products after sewing can have snake-shaped or non-directional offset.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects of the prior art and provide the tool for sewing the plastic part, which has the advantages of wide application range, stability, reliability, improved quality and simplicity in operation.

The purpose of the utility model can be realized by the following technical scheme:

a tool for sewing a plastic part comprises an inner presser foot and an outer presser foot which are matched with each other and used for pressing a strip-shaped plastic part;

a guide groove for allowing the strip-shaped plastic piece to pass through is formed below the inner pressure pin;

a groove for guiding and pressing the strip-shaped plastic piece is formed below the external pressure foot;

during sewing, the guide groove and the groove are matched, and the strip-shaped plastic piece penetrates through the guide groove and the groove.

Furthermore, the cross section of the guide groove is arched and inclines to the side.

Further, the inclination angle is 25-40 °.

Further, the angle of inclination is 30 °.

Further, the section of the groove is rectangular, and the height of the groove is not less than that of the guide groove.

Further, the section of the groove is rectangular, and the width of the groove is not less than that of the guide groove.

Furthermore, an outer shovel foot is arranged at the front end of the outer presser foot, and the groove is embedded in the outer shovel foot.

Furthermore, the front end of the outer shovel foot is provided with a raised hook-shaped structure.

Furthermore, an inner shovel foot is arranged at the front end of the inner pressing foot, and a tilted hook-shaped structure is arranged at the front end of the inner shovel foot.

Furthermore, the front part of the external pressure foot is provided with a large inclined plane, and the back part of the internal pressure foot is provided with a small inclined plane matched with the large inclined plane.

Compared with the prior art, the utility model has the following advantages:

(1) the utility model has wide application range and is suitable for sewing various strip-shaped plastic accessories meeting the size requirement;

(2) the utility model is stable and reliable, and belongs to a fixing tool for plastic accessories;

(3) the utility model can improve the quality and effectively control the sewing effect of the product;

(4) the utility model has simple operation, no complex structural part and simple and effective operation.

Drawings

FIG. 1 is a perspective view of an outer presser foot in the example;

FIG. 2 is a side view of an outer presser foot in the example;

FIG. 3 is a top view of an outer presser foot in the example;

FIG. 4 is a perspective view of an inner presser foot in the example;

FIG. 5 is a side view of the inner presser foot in the embodiment;

FIG. 6 is a front view of the inner presser foot of the embodiment;

FIG. 7 is a matching view of the inner presser foot and the outer presser foot in the embodiment;

FIG. 8 is a diagram showing a first working state of the tool in the embodiment;

FIG. 9 is a diagram showing a second working state of the tooling in the embodiment;

the reference numbers in the figures indicate: the plastic pressing device comprises an inner pressing foot 1, a guide groove 11, an inner shovel foot 12, a small inclined surface 13, an outer pressing foot 2, a groove 21, an outer shovel foot 22, a large inclined surface 23 and a strip-shaped plastic part 3.

Detailed Description

The utility model is described in detail below with reference to the figures and specific embodiments. The present embodiment is implemented on the premise of the technical solution of the present invention, and a detailed implementation manner and a specific operation process are given, but the protection scope of the present invention is not limited to the following embodiments.

Examples

A tool for sewing a plastic part is shown in figures 1-6 and comprises an inner press leg 1 and an outer press leg 2 which are matched with each other and used for pressing a strip-shaped plastic part 3; a guide groove 11 for allowing the strip-shaped plastic part 3 to pass through is formed below the inner presser foot 1; a slot 21 for guiding and pressing the strip-shaped plastic part 3 is arranged below the outer presser foot 2; during sewing, the guide groove 11 and the slot 21 are matched, and the strip-shaped plastic part 3 is arranged in the guide groove 11 and the slot 21 in a penetrating way.

The guide groove 11 has an arch-shaped cross section and is inclined laterally. The angle of inclination is 30 °. 3mm wide and 3mm high. The cross section of the slot 21 is rectangular, 4mm wide, 4mm high and 2mm deep.

The front end of the outer presser foot 2 is provided with an outer shovel foot 22, and the slot 21 is embedded in the outer shovel foot 22. The front end of the outer shovel foot 22 is provided with a tilted hook-shaped structure. The front end of the inner presser foot 1 is provided with an inner shovel foot 12, and the front end of the inner shovel foot 12 is provided with a tilting hook-shaped structure. The front part of the outer presser foot 2 is provided with a large inclined surface 23, and the back part of the inner presser foot 1 is provided with a small inclined surface 13 matched with the large inclined surface 23.

The lower end of the outer presser foot 2 is provided with a slot 21 according to the size of the strip-shaped plastic part 3, and the strip-shaped plastic part 3 can be pressed through the slot 21 by milling, cutting or grinding, so that the strip-shaped plastic part 3 moves through the slot 21, as shown in fig. 3. When sewing, the strip-shaped plastic part 3 firstly passes through the slot 21 with larger size and then passes through the guide groove 11 with smaller size and provided with a slope, and the slope arranged on the guide groove 11 has the function of preventing the strip-shaped plastic part 3 from moving left and right, and can fall and slide back even if the strip-shaped plastic part deviates to some extent, so that the sewing is always in a linear state, and snakelike or non-directional deviation does not occur.

When in sewing, as shown in fig. 8-9, the outer presser foot 2 and the inner presser foot 1 move back and forth to complete the pressing of the strip-shaped plastic piece 3, so as to realize sewing, and simultaneously drive the strip-shaped plastic piece 3 which is not sewed to be sent to the lower part of the outer presser foot 2 and the inner presser foot 1, so as to continuously complete the sewing of the whole strip-shaped plastic piece 3. The inner presser foot 1 mainly realizes sewing while pressing the strip-shaped plastic part 3, and the outer presser foot 2 mainly realizes pushing the strip-shaped plastic part 3 to move while fixing the strip-shaped plastic part 3.

The foregoing is directed to preferred embodiments of the present invention, other and further embodiments of the utility model may be devised without departing from the basic scope thereof, and the scope thereof is determined by the claims that follow. However, any simple modification, equivalent change and modification of the above embodiments according to the technical essence of the present invention are within the protection scope of the technical solution of the present invention.

Claims

1. The tool for sewing the plastic part is characterized by comprising an inner presser foot (1) and an outer presser foot (2) which are matched with each other and used for pressing a strip-shaped plastic part (3);

a guide groove (11) for allowing the strip-shaped plastic part (3) to pass through is formed below the inner presser foot (1);

a groove (21) for guiding and pressing the strip-shaped plastic piece (3) is formed below the outer presser foot (2);

during sewing, the positions of the guide groove (11) and the groove (21) are matched with each other, and the strip-shaped plastic part (3) penetrates through the guide groove (11) and the groove (21).

2. The tool for sewing the plastic part as claimed in claim 1, wherein the cross section of the guide groove (11) is arched and inclined to the side.

3. The tool of claim 2, wherein the angle of inclination is 25-40 °.

4. The tool of claim 3, wherein the angle of inclination is 30 °.

5. The tool for sewing the plastic part as claimed in claim 1, wherein the cross section of the slot (21) is rectangular, and the height of the slot (21) is not less than the height of the guide groove (11).

6. The tool for sewing the plastic part as claimed in claim 1, wherein the cross section of the slot (21) is rectangular, and the width of the slot (21) is not less than the width of the guide groove (11).

7. The tool for sewing the plastic part as claimed in claim 1, wherein an outer scoop leg (22) is provided at the front end of the outer presser foot (2), and the slot (21) is embedded in the outer scoop leg (22).

8. The tool for sewing the plastic part as claimed in claim 7, wherein the front end of the outer shovel leg (22) is provided with a raised hook-shaped structure.

9. The tool for sewing the plastic part as claimed in claim 1, wherein an inner shovel leg (12) is arranged at the front end of the inner presser foot (1), and a raised hook-shaped structure is arranged at the front end of the inner shovel leg (12).

10. The tool for sewing the plastic part as claimed in claim 1, wherein the front part of the outer presser foot (2) is provided with a large inclined surface (23), and the back part of the inner presser foot (1) is provided with a small inclined surface (13) matched with the large inclined surface (23).