Thread clamping mechanism for garment processing sewing machine

Abstract

The utility model belongs to the technical field of sewing machines, and particularly relates to a thread clamping mechanism for a garment processing sewing machine, which comprises a sewing machine body, a thread clamping device is clamped at the front end of the sewing machine body, an installation assembly is arranged in the sewing machine body and comprises a pressing rod, the pressing rod is slidably connected in the sewing machine body, and the thread clamping device is arranged on the pressing rod. A supporting frame is fixedly connected to the left side of the pressing rod, connecting rods are rotationally connected to the front end and the rear end of the supporting frame correspondingly, sliding frames are rotationally connected to the other ends of the two connecting rods correspondingly, and sliding rods are fixedly connected to the left sides of the two sliding frames correspondingly. The pressing rod is pressed, the pressing rod slides on the fixing rod and compresses the spring to drive the supporting frame to move, the supporting frame enables the sliding frame to drive the sliding rod to slide on the sliding rod and break away from the clamping groove through the connecting rod, rapid installation and detachment of the thread trapper are achieved, tools are not needed, and operation is easy and convenient.

Description

Technical Field

[0001] This utility model relates to the field of sewing machine technology, specifically to a thread clamping mechanism for a garment sewing machine. Background Technology

[0002] A sewing machine is a machine that uses one or more sewing threads to form one or more stitches on fabric, so that one or more layers of fabric are interwoven or sewn together. It consists of four parts: machine head, machine base, transmission and accessories, and is widely used in the clothing, textile and other industries.

[0003] In actual sewing, if the thread clamping force is unstable, it can lead to problems such as loose thread and skipped stitches. At this time, the operator will use a thread clamping mechanism to maintain the thread clamping force. However, traditional thread clamping mechanisms require tools to remove them when disassembling and installing, which makes the installation and disassembly of the thread clamping mechanism quite troublesome. Therefore, a thread clamping mechanism for garment sewing machines is proposed to solve the above problems.

[0004] It should be noted that the above content falls within the inventor's technical knowledge and does not necessarily constitute prior art. Utility Model Content

[0005] In view of the shortcomings of the existing technology, this utility model provides a thread clamping mechanism for garment sewing machines, which solves the existing problems.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a thread clamping mechanism for a garment sewing machine, comprising a sewing machine body, a thread clamping device being snapped onto the front end of the sewing machine body, and an installation component being provided inside the sewing machine body;

[0007] The mounting assembly includes a push rod, which is slidably connected inside the sewing machine body. A support frame is fixedly connected to the left side of the push rod. Connecting rods are rotatably connected to both ends of the support frame. Sliding frames are rotatably connected to the other ends of the two connecting rods. Sliding rods are fixedly connected to the left side of the two sliding frames. A sliding rod is fixedly connected inside the sewing machine body. Two sliding rods are slidably connected to the outer periphery of the two sliding rods respectively. A fixing rod is fixedly connected inside the sewing machine body. The push rod is slidably connected to the outer periphery of the fixing rod. A spring is sleeved on the outer periphery of the fixing rod.

[0008] The wire clamp is equipped with a wire clamping component inside.

[0009] In a preferred embodiment of this utility model, the wire clamping assembly includes a wire clamping core rod, which is slidably connected inside the wire clamp. A wire take-up spring is sleeved on the outer periphery of the wire clamping core rod. A threaded rod is fixedly connected to the front end of the wire clamping core rod. A first wire clamping piece is slidably connected to the outer periphery of the threaded rod. A second wire clamping piece is slidably connected to the outer periphery of the threaded rod. Both the threaded rod and the first wire clamping piece have convex surfaces facing each other. A wire loosening piece is slidably connected to the outer periphery of the threaded rod. The wire loosening piece abuts against the front end of the second wire clamping piece. A pin is fixedly connected to the rear end of the wire clamping core rod.

[0010] As a preferred embodiment of this utility model, a compression spring is sleeved on the outer periphery of the threaded rod, the compression spring abuts against the front end of the loosening strip, and an adjusting cap is threadedly connected to the front end of the threaded rod.

[0011] As a preferred embodiment of this utility model, the sewing machine body has an installation groove at its front end, and the thread clamp is slidably connected inside the installation groove.

[0012] As a preferred embodiment of this utility model, the wire clamp has two slots on its outer periphery, and the two sliding rods are respectively engaged in the two slots.

[0013] As a preferred embodiment of this utility model, two sliding rods are fixedly connected inside the sewing machine body, and the two sliding rods are slidably connected to the outer periphery of the two sliding rods respectively.

[0014] As a preferred embodiment of this utility model, a washer is slidably connected to the outer circumference of the threaded rod, the washer abutting against the front end of the compression spring, and the other end of the washer abutting against the rear end of the adjusting cap.

[0015] Compared with the prior art, this utility model provides a thread clamping mechanism for a garment sewing machine, which has the following beneficial effects:

[0016] 1. This thread clamping mechanism for a garment sewing machine, through the cooperation of a push rod, support frame, connecting rod, sliding frame, sliding rod, slide bar, fixed rod, spring, mounting groove, and slot, allows the thread clamp to be removed when it needs to be disassembled. The push rod slides on the fixed rod and compresses the spring, which moves the support frame. The support frame, through the connecting rod, causes the sliding frame to move the sliding rod on the slide bar and disengage from the slot. At this time, the thread clamp can be removed from the mounting groove. Installation is done by reversing the operation. This achieves quick installation and disassembly of the thread clamp without the need for tools, making operation simple and convenient and improving work efficiency.

[0017] 2. This thread clamping mechanism for a garment sewing machine, through the cooperation of a thread clamping core rod, a thread take-up spring, a thread thread rod, a first thread clamping plate, a second thread clamping plate, a loosening plate, a pressure spring, an adjusting cap, and a washer, allows for precise adjustment of the thread clamping force. The adjusting cap moves along the thread thread rod, thereby compressing or releasing the pressure spring. The pressure spring acts on the loosening plate, which in turn pushes the second thread clamping plate. Since both the thread thread rod and the first thread clamping plate have convex surfaces facing each other, the distance between the second and first thread clamping plates changes as the second moves. This allows for precise adjustment of the thread clamping force, ensuring stable stitches during sewing, reducing loose threads and skipped stitches, and improving sewing quality. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the mounting groove in this utility model;

[0020] Figure 3 This is a schematic diagram of the card slot structure in this utility model;

[0021] Figure 4 This is a schematic diagram of the sliding rod in this utility model;

[0022] Figure 5 This is a schematic diagram of the wire clamp in this utility model;

[0023] Figure 6 This is a schematic diagram of the threaded rod in this utility model.

[0024] In the diagram: 1. Sewing machine body; 2. Thread clamp; 3. Mounting slot; 4. Card slot; 5. Press lever; 6. Support frame; 7. Connecting rod; 8. Sliding frame; 9. Sliding rod; 10. Sliding rod; 11. Fixing rod; 12. Spring; 13. Thread clamping core rod; 14. Thread take-up spring; 15. Thread rod; 16. Thread clamping plate one; 17. Thread clamping plate two; 18. Thread release plate; 19. Compression spring; 20. Washer; 21. Adjusting cap; 22. Thruster. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Please see Figure 1 - Figure 4In this embodiment: a thread clamping mechanism for a garment sewing machine includes a sewing machine body 1, and a thread clamp 2 is snapped onto the front end of the sewing machine body 1;

[0027] Specifically, the sewing machine body 1 is used to process clothing, which is existing technology. The thread clamp 2 is attached to the front end of the sewing machine body 1 and is mainly responsible for clamping and adjusting the sewing thread to ensure stable thread delivery during the sewing process.

[0028] The sewing machine body 1 has an installation assembly inside, which includes a push rod 5. The push rod 5 is slidably connected inside the sewing machine body 1. A support frame 6 is fixedly connected to the left side of the push rod 5. Connecting rods 7 are rotatably connected to both ends of the support frame 6. Sliding frames 8 are rotatably connected to the other ends of the two connecting rods 7. Sliding rods 9 are fixedly connected to the left side of the two sliding frames 8. Sliding rods 10 are fixedly connected inside the sewing machine body 1. Two sliding rods 9 are slidably connected to the outer periphery of the two sliding rods 10 respectively. A fixing rod 11 is fixedly connected inside the sewing machine body 1. The push rod 5 is slidably connected to the outer periphery of the fixing rod 11. A spring 12 is sleeved on the outer periphery of the fixing rod 11. An installation groove 3 is opened at the front end of the sewing machine body 1. A thread clamp 2 is slidably connected inside the installation groove 3. Two slots 4 are opened on the outer periphery of the thread clamp 2. The two sliding rods 9 are respectively engaged in the two slots 4. Two sliding rods 10 are fixedly connected inside the sewing machine body 1. The two sliding rods 9 are slidably connected to the outer periphery of the two sliding rods 10 respectively.

[0029] Specifically, the push rod 5 is slidable inside the sewing machine body 1. By pressing the push rod 5, the support frame 6 can be moved. The support frame 6 is fixedly connected to the push rod 5, serving to connect and support the connecting rod 7, allowing the connecting rod 7 to rotate around its axis. The two ends of the connecting rod 7 are rotatably connected to the support frame 6 and the sliding frame 8, respectively, converting the linear motion of the push rod 5 into the horizontal movement of the sliding frame 8. The sliding frame 8 drives the sliding rod 9, which slides on the sliding rod 10. The sliding rod 10 provides a stable surface for the sliding rod 9. The sliding track ensures the smooth movement of the sliding rod 9. The fixed rod 11 guides and restricts the sliding of the pressing rod 5, preventing the pressing rod 5 from shaking randomly. The spring 12 is sleeved on the outer circumference of the fixed rod 11. It is compressed when the pressing rod 5 is pressed and can return the pressing rod 5 to its original position after being released. The mounting groove 3 is opened at the front end of the sewing machine body 1 to provide an installation position for the thread clamp 2. The thread clamp 2 can slide in it. The slot 4 is set on the outer circumference of the thread clamp 2 and engages with the sliding rod 9 to achieve a stable connection between the thread clamp 2 and the sewing machine body 1.

[0030] Please see Figure 5 - Figure 6In this embodiment, the wire clamp 2 is internally equipped with a wire clamping assembly, which includes a wire clamping core rod 13. The wire clamping core rod 13 is slidably connected inside the wire clamp 2. A wire take-up spring 14 is sleeved on the outer periphery of the wire clamping core rod 13. A threaded rod 15 is fixedly connected to the front end of the wire clamping core rod 13. A first wire clamping plate 16 is slidably connected to the outer periphery of the threaded rod 15. A second wire clamping plate 17 is slidably connected to the outer periphery of the threaded rod 15. Both the threaded rod 15 and the first wire clamping plate 16 have convex surfaces facing each other. A loosening piece 18 is slidably connected to the outer periphery of the threaded rod 15. The loosening piece 18 abuts against the front end of the clamping piece 17. A pin 22 is fixedly connected to the rear end of the clamping core rod 13. A compression spring 19 is sleeved on the outer periphery of the threaded rod 15. The compression spring 19 abuts against the front end of the loosening piece 18. An adjusting cap 21 is threadedly connected to the front end of the threaded rod 15. A washer 20 is slidably connected to the outer periphery of the threaded rod 15. The washer 20 abuts against the front end of the compression spring 19, and the other end of the washer 20 abuts against the rear end of the adjusting cap 21.

[0031] Specifically, the thread clamping core rod 13 can slide within the thread clamp 2, providing a mounting base for other parts. The thread take-up spring 14 is sleeved around the outer periphery of the thread clamping core rod 13, which can play a certain role in buffering and adjusting the thread tension during the sewing process. The threaded rod 15 is fixed to the front end of the thread clamping core rod 13. The thread clamping plate 16, the thread clamping plate 27, the loosening plate 18, the compression spring 19, the washer 20, and the adjusting cap 21 are all installed on the threaded rod 15. The raised surfaces of the thread clamping plates 16 and 17 facing each other allow them to better clamp or loosen the sewing thread when their relative positions change. The loosening plate 18 abuts against the thread clamping plate 17 and, under the action of the compression spring 19, pushes the thread clamping plate 17 to adjust the clamping force. The compression spring 19 acts on the loosening plate 18 through its own elasticity. The adjusting cap 21 is threaded to the front end of the threaded rod 15. Rotating the adjusting cap 21 can change the pressure on the compression spring 19, thereby precisely adjusting the clamping force. The shim 20 is located between the compression spring 19 and the adjusting cap 21, which plays a role in protection and even force distribution.

[0032] The working principle and usage process of this utility model are as follows: When it is necessary to install or remove the thread clamp 2, the operator presses the push rod 5. The push rod 5 slides on the outer periphery of the fixed rod 11 and compresses the spring 12. The movement of the push rod 5 drives the support frame 6 fixedly connected to it to move. The movement of the support frame 6 causes the connecting rod 7 to rotate. The rotation of the connecting rod 7 pushes the sliding frame 8 to move, which in turn drives the sliding rod 9 to slide on the outer periphery of the sliding rod 10. As the sliding rod 9 slides, it will disengage from the slot 4 on the outer periphery of the thread clamp 2. At this time, the thread clamp 2 can be removed from the mounting slot 3 at the front end of the sewing machine body 1. When installing the thread clamp 2, the above steps are reversed. The push rod 5 is released, and the elastic force of the spring 12 causes the push rod 5 to return to its original position, driving the sliding rod 9 to re-engage into the slot 4, completing the installation of the thread clamp 2. This realizes the quick installation and removal of the thread clamp 2 and improves work efficiency.

[0033] When the thread clamping force needs to be adjusted, the operator rotates the adjusting cap 21, which moves on the threaded rod 15. When the adjusting cap 21 moves closer to the thread clamping plate, it compresses the compression spring 19. The compression spring 19, under pressure, pushes the loosening plate 18, which in turn pushes the second thread clamping plate 17 closer to the first thread clamping plate 16. Since both the threaded rod 15 and the first thread clamping plate 16 have convex surfaces on opposite sides, the distance between the two decreases when the second thread clamping plate 17 approaches the first thread clamping plate 16, increasing the thread clamping force. When the adjusting cap 21 moves away from the thread clamping plate, the compression spring 19 relaxes, and the second thread clamping plate 17 moves away from the first thread clamping plate 16 under the action of elasticity, reducing the thread clamping force. This achieves precise adjustment of the thread clamping force, ensuring stable stitches during sewing, reducing problems such as loose threads and skipped stitches, and improving sewing quality.

[0034] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A thread clamping mechanism for a garment processing sewing machine, comprising a sewing machine body (1) having a thread clamping device (2) attached to the front end of the sewing machine body (1), characterized in that: The sewing machine body (1) is internally provided with a mounting assembly; The mounting assembly comprises a pressing rod (5) which is slidingly connected inside the sewing machine body (1), a support frame (6) is fixedly connected to the left side of the pressing rod (5), a connecting rod (7) is rotatably connected to the front and rear ends of the support frame (6), a sliding frame (8) is rotatably connected to the other end of the two connecting rods (7), a sliding rod (9) is fixedly connected to the left side of the two sliding frames (8), a slide rod (10) is fixedly connected inside the sewing machine body (1), the two sliding rods (9) are slidingly connected to the outer periphery of the two slide rods (10), a fixed rod (11) is fixedly connected inside the sewing machine body (1), the pressing rod (5) is slidingly connected to the outer periphery of the fixed rod (11), and a spring (12) is sleeved on the outer periphery of the fixed rod (11). The thread clipper (2) is internally provided with a thread clamping assembly.

2. The thread clamping mechanism for a garment processing sewing machine according to claim 1, characterized in that: The thread clamping assembly comprises a thread clamping core rod (13) which is slidingly connected inside the thread clipper (2), a thread tension spring (14) is sleeved on the outer periphery of the thread clamping core rod (13), a threaded rod (15) is fixedly connected to the front end of the thread clamping core rod (13), a thread clamping piece one (16) is slidingly connected to the outer periphery of the threaded rod (15), a thread clamping piece two (17) is slidingly connected to the outer periphery of the threaded rod (15), the side of the threaded rod (15) and the thread clamping piece one (16) is a convex surface, a thread loosening piece (18) is slidingly connected to the outer periphery of the threaded rod (15), the thread loosening piece (18) abuts against the front end of the thread clamping piece two (17), and a thimble (22) is fixedly connected to the rear end of the thread clamping core rod (13).

3. The thread clamping mechanism for a garment processing sewing machine according to claim 2, characterized in that: The threaded rod (15) is sleeved with a compression spring (19), the compression spring (19) abuts against the front end of the thread loosening piece (18), and an adjusting cap (21) is threadedly connected to the front end of the threaded rod (15).

4. The thread clamping mechanism for a garment processing sewing machine according to claim 1, wherein: The sewing machine body (1) is provided with a mounting slot (3) at the front end, and the thread clipper (2) is slidingly connected inside the mounting slot (3).

5. The thread clamping mechanism for a garment processing sewing machine according to claim 1, wherein: The outer periphery of the thread clipper (2) is provided with two clamping grooves (4), and the two sliding rods (9) are clamped inside the two clamping grooves (4) respectively.

6. The thread clamping mechanism for a garment working sewing machine according to claim 1, wherein: The sewing machine body (1) is internally provided with two slide rods (10), and the two sliding rods (9) are slidingly connected to the outer periphery of the two slide rods (10) respectively.

7. The thread clamping mechanism for a garment processing sewing machine according to claim 3, wherein: The threaded rod (15) is slidingly connected with a gasket (20) on the outer periphery, the gasket (20) abuts against the front end of the compression spring (19), and the other end of the gasket (20) abuts against the rear end of the adjusting cap (21).

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