Four-thread bag sewing machine

Abstract

The utility model relates to the technical field of new materials, and discloses a four-coil sewing machine which comprises a base, a machine body is fixedly installed on the top of the base, and a workbench is fixedly installed on the top of the base. The placing assembly is fixedly mounted at one end, close to the top, of the machine body; wherein the placing assembly comprises a placing part and a movable part; the limiting assembly is fixedly mounted at the top of the machine body; the limiting assembly comprises a fixing part and a lifting part. A movable part is arranged, two hands press a supporting block towards the inner side of a bottom cylinder, a spring in contact with the supporting block is compressed, the supporting block moves into the bottom cylinder, a bobbin penetrates through the bottom cylinder and is placed at the top of a placing disc, the supporting block pops up under the action of the spring and abuts against the inner wall of the bobbin, and a bottom shaft and the bottom cylinder are movably installed. And the bobbin and the bottom cylinder are supported to rotate together, so that the effect of stably paying off when the bobbin rotates is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of new materials, and specifically relates to a four-thread overlock sewing machine. Background Art

[0002] A four-thread overlock sewing machine is a special sewing device that can combine two threads and two elastic filaments to complete overlock sewing and flat sewing. The working principle of this machine is to thread two threads through the upper thread inlet and pass through the lower end of the thread path, fix the lower thread tension wheel at the lower part, and automatically distribute the tension through the beak.

[0003] Currently, in the actual application process of four-thread overlock sewing machines, generally, the bobbin is directly sleeved and installed on the thread storage rod. When the bobbin rotates to unwind the thread, the rotation between the bobbin and the thread storage rod is unstable, which will have a certain impact on the thread unwinding of the bobbin. Content of the Utility Model

[0004] The purpose of the utility model is to provide a four-thread overlock sewing machine to achieve the purpose of solving the problems raised in the above background art.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A four-thread overlock sewing machine, comprising:

[0006] A base, on the top of which a machine body is fixedly installed, and a workbench is fixedly installed on the top of the base;

[0007] A placement component, which is fixedly installed at one end of the machine body close to the top;

[0008] Among them, the placement component includes a placement part and a movable part;

[0009] A limiting component, which is fixedly installed on the top of the machine body;

[0010] Among them, the limiting component includes a fixed part and a lifting part.

[0011] Preferably, the placement part includes a mounting plate, a placement disc is fixedly installed in the middle of the mounting plate, a bottom shaft is fixedly installed on the top of the placement disc, and the mounting plate is linearly and equidistantly fixedly installed with the machine body.

[0012] Preferably, the movable part includes a bottom cylinder, a support block is movably installed inside the bottom cylinder, a spring is arranged on the left side of the support block, a fixed column is sleeved inside the spring, a movable plate is fixedly installed at the left end of the fixed column, and a top column is movably installed at the top of the bottom cylinder through clamping.

[0013] Preferably, the bottom cylinder is movably installed at the top of the bottom shaft. The top end of the bottom shaft penetrates through the bottom cylinder and extends into the interior of the bottom cylinder. One end of the spring is fixedly connected to the movable plate. The movable plate is movably installed between the bottom cylinder through a clamping connection. The bottom of the top column contacts the top of the supporting block.

[0014] Preferably, the fixing part includes a frame. A bottom column is fixedly installed inside the bottom end of the frame. The top of the machine body is fixedly installed with wire loops at equal intervals linearly through threads. The frame is fixedly installed on the top of the machine body. The wire loops and the mounting plate are aligned and installed.

[0015] Preferably, the lifting part includes a frame body. A roller is movably installed inside the frame body. Limiting columns are fixedly installed on both sides of the top of the frame body. A threaded rod is arranged at the top of the frame body. The top end of the threaded rod is fixedly installed with a knob. A connecting seat is fixedly installed at the top of the frame body.

[0016] Preferably, the frame body is arranged inside the frame. Both ends of the roller penetrate through the frame body and extend into the interior of the frame body. The top ends of the limiting columns penetrate through the frame and extend to the outside of the frame. The limiting columns are movably installed between the frame and the frame.

[0017] Preferably, the threaded rod is movably installed between the frame through threads. The bottom end of the threaded rod penetrates through the connecting seat and extends into the interior of the connecting seat. The bottom end of the threaded rod is movably installed between the connecting seat. The top end of the threaded rod penetrates through the frame and extends to the outside of the frame.

[0018] The utility model provides a four-thread wrapping sewing machine, which has the following beneficial effects:

[0019] (1) By setting the movable part in the utility model, when both hands press the supporting block towards the inside of the bottom cylinder, the spring in contact with the supporting block is compressed, and the supporting block moves into the interior of the bottom cylinder. The thread cylinder is placed on the top of the placing disc after passing through the bottom cylinder. The supporting block pops out under the action of the spring and abuts against the inner wall of the thread cylinder. The movable installation between the bottom shaft and the bottom cylinder supports the rotation of the thread cylinder and the bottom cylinder together, achieving the effect of smooth thread release when the thread cylinder rotates.

[0020] (2) By setting the movable part in the utility model, the movable plate is movably installed between the bottom cylinder through a clamping connection. The spring is fixedly connected to the movable plate, and one end of the spring contacts the supporting block. The movable plate and the supporting block can be taken out of the bottom cylinder at any time, achieving the effect that the movable part is convenient to disassemble and maintain. Description of the Drawings

[0021] Figure 1 It is a schematic structural diagram of the utility model;

[0022] Figure 2 It is a front view of the utility model;

[0023] Figure 3 This is the rear view of the present utility model;

[0024] Figure 4 This is the Figure 2 partial enlarged view of A in the present utility model;

[0025] Figure 5 This is the Figure 3 partial enlarged view of B in the present utility model.

[0026] In the figure: 1 base, 2 machine body, 3 placing assembly, 31 placing part, 311 mounting plate, 312 placing tray, 313 bottom shaft, 32 moving part, 321 bottom cylinder, 322 supporting block, 323 spring, 324 fixing column, 325 moving plate, 326 top column, 4 limiting assembly, 41 fixing part, 411 frame, 412 bottom column, 413 wire loop, 42 lifting part, 421 frame body, 422 roller, 423 limiting column, 424 threaded rod, 425 knob, 426 connecting seat, 5 workbench. Detailed implementation manners

[0027] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0028] Examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the accompanying drawings are exemplary and are intended to explain the present utility model, and should not be construed as a limitation of the present utility model.

[0029] Embodiment 1

[0030] A preferred embodiment of a four-thread overlock sewing machine provided by the present utility model is as Figures 1-5 shown: A four-thread overlock sewing machine includes:

[0031] A base 1, on the top of the base 1, a machine body 2 is fixedly installed, and on the top of the base 1, a workbench 5 is fixedly installed;

[0032] A placing assembly 3, the placing assembly 3 is fixedly installed at one end of the machine body 2 close to the top;

[0033] Among them, the placing assembly 3 includes a placing part 31 and a moving part 32;

[0034] The placement part 31 includes a mounting plate 311. A placement disc 312 is fixedly installed in the middle of the mounting plate 311. A bottom shaft 313 is fixedly installed on the top of the placement disc 312. The mounting plate 311 is fixedly installed linearly and equidistantly between the body 2;

[0035] The moving part 32 includes a bottom cylinder 321. A support block 322 is movably installed inside the bottom cylinder 321. A spring 323 is arranged on the left side of the support block 322. A fixed column 324 is sleeved inside the spring 323. A movable plate 325 is fixedly installed at the left end of the fixed column 324. The top of the bottom cylinder 321 is movably installed with a top column 326 through clamping. The bottom cylinder 321 is movably installed on the top of the bottom shaft 313. The top end of the bottom shaft 313 penetrates through the bottom cylinder 321 and extends into the inside of the bottom cylinder 321. One end of the spring 323 is fixedly connected to the movable plate 325. The movable plate 325 is movably installed with the bottom cylinder 321 through clamping. The bottom of the top column 326 is in contact with the top of the support block 322; Press the support block 322 inwardly into the bottom cylinder 321 with both hands. The spring 323 in contact with the support block 322 is compressed. The support block 322 moves into the inside of the bottom cylinder 321. Pass the bobbin through the bottom cylinder 321 and place it on the top of the placement disc 312. The support block 322 pops out under the action of the spring 323 and abuts against the inner wall of the bobbin. The movable installation between the bottom shaft 313 and the bottom cylinder 321 supports the rotation of the bobbin and the bottom cylinder 321 together.

[0036] Embodiment 2

[0037] On the basis of Embodiment 1, a preferred embodiment of the four-thread wrapping sewing machine provided by the present utility model is as Figures 1-5 shown: a limiting component 4, and the limiting component 4 is fixedly installed on the top of the body 2;

[0038] Among them, the limiting component 4 includes a fixed part 41 and a lifting part 42;

[0039] The fixed part 41 includes a frame 411. A bottom column 412 is fixedly installed inside the bottom end of the frame 411. The top of the body 2 is fixedly installed with thread loops 413 linearly and equidistantly through threads. The frame 411 is fixedly installed on the top of the body 2. The thread loops 413 are installed in alignment with the mounting plate 311; Pass the thread end of the bobbin through the thread loops 413;

[0040] The lifting part 42 includes a frame body 421. A roller 422 is movably installed inside the frame body 421. Limit columns 423 are fixedly installed on both sides of the top of the frame body 421. A threaded rod 424 is arranged at the top of the frame body 421. A knob 425 is fixedly installed at the top end of the threaded rod 424. A connecting seat 426 is fixedly installed at the top of the frame body 421. The frame body 421 is arranged inside the frame 411. Both ends of the roller 422 penetrate through the frame body 421 and extend to the inside of the frame body 421. The top ends of the limit columns 423 penetrate through the frame 411 and extend to the outside of the frame 411. The limit columns 423 are movably installed with the frame 411. The threaded rod 424 is movably installed with the frame 411 through threads. The bottom end of the threaded rod 424 penetrates through the connecting seat 426 and extends to the inside of the connecting seat 426. The bottom end of the threaded rod 424 is movably installed with the connecting seat 426. The top end of the threaded rod 424 penetrates through the frame 411 and extends to the outside of the frame 411; Subsequently, continue to pass the thread end through the top of the bottom column 412 and the bottom of the roller 422. Rotate the knob 425, the threaded rod 424 rotates, drives the connecting seat 426 to move downward, the frame body 421 fixedly installed with the connecting seat 426 moves downward, and at the same time, the limit columns 423 lift and lower inside the frame 411, the roller 422 lowers the bottom column thread end, and the thread end is inserted into the sewing needle at the head part of the machine body 2.

[0041] When in use, press the supporting block 322 inward on the inner side of the bottom cylinder 321 with both hands. The spring 323 in contact with the supporting block 322 is compressed. The supporting block 322 moves into the inside of the bottom cylinder 321. Place the bobbin through the bottom cylinder 321 on the top of the placing plate 312. The supporting block 322 pops out under the action of the spring 323 and abuts against the inner wall of the bobbin. The bottom shaft 313 is movably installed with the bottom cylinder 321, supporting the bobbin and the bottom cylinder 321 to rotate together. Pass the thread end of the bobbin through the thread loop 413, and then continue to pass the thread end through the top of the bottom column 412 and the bottom of the roller 422. Rotate the knob 425, the threaded rod 424 rotates, drives the connecting seat 426 to move downward, the frame body 421 fixedly installed with the connecting seat 426 moves downward, and at the same time, the limit columns 423 lift and lower inside the frame 411, the roller 422 lowers the bottom column thread end, and the thread end is inserted into the sewing needle at the head part of the machine body 2.

[0042] Finally, it should be noted that: The above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A four-thread overlock sewing machine, characterized in that, Comprising: A base (1), on the top of which a body (2) is fixedly installed, and a workbench (5) is fixedly installed on the top of the base (1); A placement component (3), which is fixedly installed at one end of the body (2) near the top; Wherein, the placement component (3) includes a placement part (31) and a movable part (32); A limit component (4), which is fixedly installed on the top of the body (2); Wherein, the limit component (4) includes a fixed part (41) and a lifting part (42).

2. The four-thread overlock sewing machine according to claim 1, characterized in that: The placement part (31) includes a mounting plate (311), a placement tray (312) is fixedly installed in the middle of the mounting plate (311), a bottom shaft (313) is fixedly installed on the top of the placement tray (312), and the mounting plate (311) is linearly and equidistantly fixedly installed between the mounting plate (311) and the body (2).

3. A four-thread overlock sewing machine according to claim 1, characterized in that: The movable part (32) includes a bottom cylinder (321), a support block (322) is movably installed inside the bottom cylinder (321), a spring (323) is arranged on the left side of the support block (322), a fixed column (324) is sleeved inside the spring (323), a movable plate (325) is fixedly installed at the left end of the fixed column (324), and a top column (326) is movably installed at the top of the bottom cylinder (321) by clamping.

4. A four-thread overlock sewing machine according to claim 3, characterized in that: The bottom cylinder (321) is movably installed on the top of the bottom shaft (313), the top end of the bottom shaft (313) penetrates through the bottom cylinder (321) and extends into the bottom cylinder (321), one end of the spring (323) is fixedly connected with the movable plate (325), the movable plate (325) is movably installed with the bottom cylinder (321) by clamping, and the bottom of the top column (326) is in contact with the top of the support block (322).

5. A four-thread overlock sewing machine according to claim 1, characterized in that: The fixed part (41) includes a frame (411), a bottom column (412) is fixedly installed inside the bottom end of the frame (411), wire loops (413) are linearly and equidistantly fixedly installed on the top of the body (2) by threads, the frame (411) is fixedly installed on the top of the body (2), and the wire loops (413) are aligned and installed with the mounting plate (311).

6. A four-thread overlock sewing machine according to claim 1, characterized in that: The lifting part (42) includes a frame body (421), a roller (422) is movably installed inside the frame body (421), limit columns (423) are fixedly installed on both sides of the top of the frame body (421), a threaded rod (424) is arranged on the top of the frame body (421), a knob (425) is fixedly installed at the top end of the threaded rod (424), and a connecting seat (426) is fixedly installed on the top of the frame body (421).

7. A four-thread overlock sewing machine according to claim 6, wherein: The frame body (421) is arranged inside the frame (411), both ends of the roller (422) penetrate through the frame body (421) and extend into the frame body (421), the top ends of the limit columns (423) penetrate through the frame (411) and extend outside the frame (411), and the limit columns (423) are movably installed with the frame (411).

8. A four-thread overlock sewing machine according to claim 6, characterized in that: The threaded rod (424) is movably installed between the frame (411) through threads. The bottom end of the threaded rod (424) penetrates through the connecting seat (426) and extends into the interior of the connecting seat (426). The bottom end of the threaded rod (424) is movably installed between the connecting seat (426). The top end of the threaded rod (424) penetrates through the frame (411) and extends to the outside of the frame (411).

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