Thread cutting structure of sewing thread distributing machine
By coordinating the push component and the limit component, the blade in the thread cutting structure of the sewing machine is quickly locked and unlocked, solving the problem of cumbersome blade replacement operation in traditional methods and improving production efficiency and ease of operation.
Patent Information
- Application Number
- CN202423123415.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-17
- Publication Date
- 2025-10-31
- Estimated Expiration
- 2034-12-17
AI Technical Summary
Traditional sewing and thread cutting machines rely on bolts for blade installation and fixation, which makes blade replacement cumbersome, affects production efficiency, and increases labor intensity.
By using a combination of a push component and a limit component, the blade can be quickly locked and unlocked by rotating the turntable, which simplifies the blade replacement process and eliminates the tedious bolt tightening operation.
It enables quick blade replacement, improves ease of operation and equipment efficiency, and reduces the workload of staff.
Smart Images
Figure CN223496806U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of wiring machine technology, and in particular to a thread cutting structure for a sewing wiring machine. Background Technology
[0002] Electric blankets, heated mouse pads, and heated waist belts are among the most popular electric heating products in today's society. These products typically consist of core components such as fabric, heating wires, and a control unit. During the manufacturing process, a sewing machine is used to securely attach the heating wires to the fabric. The thread-cutting mechanism is an indispensable part of this process, responsible for cutting the heating wires.
[0003] However, in traditional sewing and thread cutting machines, the blade installation and fixation typically rely on bolts. While this method is secure, replacing the blade requires time and effort to unscrew the bolts, making the process relatively cumbersome. This not only affects production efficiency but also increases the workload of operators. Utility Model Content
[0004] In order to overcome the shortcomings of the prior art, the present invention provides a thread cutting structure for a sewing and wiring machine.
[0005] The technical solution is as follows: A thread cutting structure for a sewing and threading machine includes a connecting plate, A and B. Fixing bolts are provided at the upper and lower parts of the connecting plate. A housing a is fixedly connected to the lower part of the connecting plate via the fixing bolts. A housing b is fixedly connected to the right side of housing a. A connecting cylinder is fixedly connected to the right side of housing b. A servo motor is fixedly connected to the right side of the connecting cylinder. A circular opening is opened in the middle of housing b. The output shaft end of the servo motor passes through the circular opening and is located inside housing b. A mounting plate is fixedly connected to the output shaft end of the servo motor. A mounting frame is fixedly connected to the front side of the mounting plate. An electric push rod is installed in the middle of the mounting plate. The telescopic rod of the electric push rod passes through the side wall of the mounting plate, and its end is fixedly connected to a mounting block. A blade is slidably arranged in the mounting frame. A limiting shell is fixedly connected to the front side of the mounting frame. The system also includes a pushing component and a limiting component. A pushing component is provided on housing a, and a limiting component is provided on the mounting block for locking the blade. The pushing component is used to push the limiting component to unlock.
[0006] Preferably, the pushing assembly includes a limiting disk, a screw, a turntable, guide rods, a sliding ring, connecting rods, and a circular ring. The limiting disk is fixedly connected to the middle of the left side of the outer casing a. A screw is rotatably connected between the limiting disk and the outer casing a. The left and right ends of the screw pass through the limiting disk and the outer casing a, respectively. The turntable is snapped and fixed to the left end of the screw. Two guide rods are fixedly connected at intervals to the middle of the right side of the outer casing a. A sliding ring is slidably connected between the two guide rods. The right end of the screw passes through the sliding ring and is threaded into it. Four connecting rods are fixedly connected at intervals to the sliding ring. A circular ring is fixedly connected to the ends of the four connecting rods away from the sliding ring.
[0007] Preferably, the limiting assembly includes a fixed rod, a sliding plate, a limiting plate, and a return spring. The fixed rod is fixedly connected to the mounting block, and the sliding plate is slidably connected to the fixed rod. The rear side of the sliding plate is in contact with the ring. Two limiting plates are fixedly connected at intervals to the right side of the sliding plate. Both limiting plates can penetrate the mounting block and be inserted into the blade. A return spring is connected between the sliding plate and the mounting block.
[0008] Preferably, both limiting plates have beveled surfaces at their ends near the blade.
[0009] Preferably, a shearing block is also included, with the front ends of the mounting frame and the limiting shell being fixedly connected together.
[0010] Preferably, the turntable also includes protrusions, with protrusions evenly spaced along the circumference.
[0011] The beneficial effects of this utility model are as follows: by cooperating with the push component and the limit component, the blade can be quickly locked and unlocked, simplifying the blade replacement process. The blade can be locked and unlocked simply by rotating the turntable, avoiding the tedious bolt tightening operation. This not only saves time but also reduces the labor intensity of the staff, improving the overall ease of operation and the efficiency of the equipment. Attached Figure Description
[0012] Figure 1 This is a three-dimensional structural diagram of the present invention.
[0013] Figure 2 This is a three-dimensional structural diagram of the screw, guide rod, and sliding ring of this utility model.
[0014] Figure 3 This is a three-dimensional structural cross-sectional view of the connecting cylinder and mounting plate of this utility model.
[0015] Figure 4 This is a three-dimensional structural diagram of the connecting rod, ring, and sliding plate of this utility model.
[0016] Figure 5 This is a three-dimensional structural diagram of the sliding plate, limiting plate, and reset spring of this utility model.
[0017] Reference numerals: 1_Connecting plate, 2_Fixing bolt, 3_Outer shell a, 4_Outer shell b, 5_Connecting cylinder, 6_Servo motor, 7_Mounting plate, 8_Mounting frame, 9_Electric push rod, 10_Mounting block, 11_Blade, 12_Limiting shell, 13_Limiting plate, 14_Screw, 15_Turntable, 16_Guide rod, 17_Sliding ring, 18_Connecting rod, 19_Ring, 20_Fixing rod, 21_Sliding plate, 22_Limiting plate, 23_Reset spring, 24_Inclined surface, 25_Shearing block, 26_Protrusion. Detailed Implementation
[0018] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.
[0019] Example: A thread cutting structure for a sewing and wiring machine, such as... Figures 1-5 As shown, the system includes connecting plates 1, A, and B. Fixing bolts 2 are provided on both the upper and lower parts of connecting plate 1. A housing a3 is fixedly connected to the lower part of connecting plate 1 via the fixing bolts 2. A housing b4 is fixedly connected to the right side of housing a3. A connecting cylinder 5 is fixedly connected to the right side of housing b4. A servo motor 6 is fixedly connected to the right side of connecting cylinder 5. A circular opening is formed in the middle of housing b4. The output shaft end of the servo motor 6 passes through the circular opening and is located inside housing b4. A mounting plate 7 is fixedly connected to the output shaft end of the servo motor 6. A mounting plate 7 is fixedly connected to the front side of the mounting plate 7. There is a mounting frame 8, and an electric push rod 9 is installed in the middle of the mounting plate 7. The telescopic rod of the electric push rod 9 passes through the side wall of the mounting plate 7 and its end is fixedly connected to the mounting block 10. A blade 11 is slidably arranged in the mounting frame 8. A limiting shell 12 is fixedly connected to the front side of the mounting frame 8. The limiting shell 12 is used to limit the blade 11 in the mounting frame 8. It also includes a pushing component and a limiting component. A pushing component is provided on the outer shell a3, and a limiting component is provided on the mounting block 10 for locking the blade 11. The pushing component is used to push the limiting component to unlock.
[0020] like Figure 2 and Figure 4 As shown, the pushing assembly includes a limiting disk 13, a screw 14, a turntable 15, a guide rod 16, a sliding ring 17, a connecting rod 18, and a circular ring 19. The limiting disk 13 is fixedly connected to the middle left side of the outer casing a3. The screw 14 is rotatably connected between the limiting disk 13 and the outer casing a3. The left and right ends of the screw 14 pass through the limiting disk 13 and the outer casing a3, respectively. The turntable 15 is snapped and fixed to the left end of the screw 14. Two guide rods 16 are fixedly connected at intervals to the middle right side of the outer casing a3. A sliding ring 17 is slidably connected between the two guide rods 16. The right end of the screw 14 passes through the sliding ring 17 and is threaded into it. Four connecting rods 18 are fixedly connected at intervals to the sliding ring 17. The ends of the four connecting rods 18 away from the sliding ring 17 are all fixedly connected to a circular ring 19.
[0021] like Figure 4 and Figure 5 As shown, the limiting assembly includes a fixed rod 20, a sliding plate 21, a limiting plate 22, and a return spring 23. The fixed rod 20 is fixedly connected to the mounting block 10, and the sliding plate 21 is slidably connected to the fixed rod 20. The rear side of the sliding plate 21 is in contact with the ring 19. Two limiting plates 22 are fixedly connected at intervals to the right side of the sliding plate 21. Both limiting plates 22 can penetrate the mounting block 10 and be inserted into the blade 11. A return spring 23 is connected between the sliding plate 21 and the mounting block 10, and the return spring 23 is wrapped around the periphery of the fixed rod 20.
[0022] In use, the servo motor 6 drives the mounting plate 7 to rotate, which in turn drives the mounting frame 8 and the blade 11 to rotate downwards, bringing the front end of the blade 11 close to the heating wire to be cut. Then, the telescopic rod of the electric push rod 9 retracts, causing the mounting block 10 and the blade 11 to move backwards, thus completing the cutting process of the heating wire. When the blade 11 needs to be replaced, the operator only needs to rotate the turntable 15. When the turntable 15 rotates, it drives the screw 14, which is fixed to it, to rotate as well. Since the screw 14 and the sliding ring 17 are threaded together, the rotation of the screw 14 will cause the sliding ring 17 to move to the left. The movement of the sliding ring 17, in turn, drives the ring 19 to move to the left via the connecting rod 18. The ring 19 then pushes the sliding plate 21 to move to the left, causing the two limiting plates 22 to disengage from the blade 11. The lock on the blade 11 is released by rotating the turntable 15. At this time, the return spring 23 is stretched, and the operator can easily remove the blade 11 from the mounting frame 8 and replace it with a new blade 11. After inserting the new blade 11 into the mounting frame 8, the operator rotates the turntable 15 in the opposite direction, causing the ring 19 to move to the right and reset. Under the reset action of the return spring 23, the two sliding plates 21 will drive the two limit plates 22 to re-insert into the new blade 11 and lock the new blade 11. In this way, the locking and unlocking operation of the blade 11 can be completed simply by rotating the turntable 15 without turning the bolts, saving time and effort.
[0023] like Figure 5 As shown, both limiting plates 22 have inclined surfaces 24 at their ends near the blade 11.
[0024] By setting the inclined surface 24, it is more convenient for workers to install new blades 11. First, reset the ring 19 so that the two limiting plates 22 are reset to their initial positions. Then, the workers only need to insert the new blade 11 directly into the mounting frame 8. When the rear end of the blade 11 contacts the limiting plate 22, it will squeeze the inclined surface 24 set on the limiting plate 22, thereby pushing the two limiting plates 22 to the left, so that the reset spring 23 is stretched. When the blade 11 is fully inserted into the mounting frame 8, the two limiting plates 22 will be inserted into the blade 11 under the reset action of the reset spring 23, locking and limiting the blade 11.
[0025] like Figure 1 As shown, it also includes a shear block 25, which is fixedly connected between the front ends of the mounting frame 8 and the limiting shell 12.
[0026] By setting the shearing block 25, the shearing effect can be further improved. When the blade 11 cuts the heating wire, the heating wire will be pushed against the shearing block 25 by the blade 11. The sharp edge of the shearing block 25 can assist the blade 11 to cut the heating wire better, thereby improving the efficiency and accuracy of the shearing.
[0027] like Figure 1 As shown, it also includes protrusions 26, which are evenly spaced along the circumference of the turntable 15.
[0028] By setting the protrusion 26, the friction between the operator's hand and the turntable 15 can be increased. When rotating the turntable 15, the protrusion 26 can provide a better grip, making it easier for the operator to rotate the turntable 15.
[0029] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.
Claims
1. A thread cutting structure for a sewing and threading machine, comprising a connecting plate (1), A and B, wherein fixing bolts (2) are provided on the upper and lower parts of the connecting plate (1), a housing a (3) is fixedly connected to the lower part of the connecting plate (1) by the fixing bolts (2), a housing b (4) is fixedly connected to the right side of the housing a (3), a connecting cylinder (5) is fixedly connected to the right side of the housing b (4), a servo motor (6) is fixedly connected to the right side of the connecting cylinder (5), and a circular opening is opened in the middle of the housing b (4), the output shaft end of the servo motor (6) The part passes through the circular opening and is located inside the outer shell b (4). The output shaft end of the servo motor (6) is fixedly connected to the mounting plate (7). The front side of the mounting plate (7) is fixedly connected to the mounting frame (8). An electric push rod (9) is installed in the middle of the mounting plate (7). The telescopic rod of the electric push rod (9) passes through the side wall of the mounting plate (7) and its end is fixedly connected to the mounting block (10). A blade (11) is slidably arranged in the mounting frame (8). A limit shell (12) is fixedly connected to the front side of the mounting frame (8). The feature is: It also includes a pushing component and a limiting component. The pushing component is provided on the housing a(3), and the limiting component is provided on the mounting block (10) for locking the blade (11). The pushing component is used to push the limiting component to unlock.
2. The thread cutting structure of a sewing machine as described in claim 1, characterized in that: The pushing assembly includes a limiting disk (13), a screw (14), a turntable (15), a guide rod (16), a sliding ring (17), a connecting rod (18), and a circular ring (19). The limiting disk (13) is fixedly connected to the middle left side of the outer shell a (3). The screw (14) is rotatably connected between the limiting disk (13) and the outer shell a (3). The left and right ends of the screw (14) pass through the limiting disk (13) and the outer shell a (3) respectively. The turntable (15) is snapped and fixed to the left end of the screw (14). Two guide rods (16) are fixedly connected at intervals to the middle right side of the outer shell a (3). The sliding ring (17) is slidably connected between the two guide rods (16). The right end of the screw (14) passes through the sliding ring (17) and is threaded into it. Four connecting rods (18) are fixedly connected at intervals on the sliding ring (17). The ends of the four connecting rods (18) away from the sliding ring (17) are fixedly connected together by a circular ring (19).
3. The thread cutting structure of a sewing machine as described in claim 2, characterized in that: The limiting assembly includes a fixed rod (20), a sliding plate (21), a limiting plate (22), and a return spring (23). The fixed rod (20) is fixedly connected to the mounting block (10), and the sliding plate (21) is slidably connected to the fixed rod (20). The rear side of the sliding plate (21) is in contact with the ring (19). Two limiting plates (22) are fixedly connected at intervals on the right side of the sliding plate (21). Both limiting plates (22) can penetrate the mounting block (10) and be inserted into the blade (11). A return spring (23) is connected between the sliding plate (21) and the mounting block (10).
4. The thread cutting structure of a sewing machine as described in claim 3, characterized in that: Both limiting plates (22) have bevels (24) at their ends near the blade (11).
5. The thread cutting structure of a sewing machine as described in claim 4, characterized in that: It also includes a shear block (25), and the front end of the mounting frame (8) and the limiting shell (12) are fixedly connected together by the shear block (25).
6. The thread cutting structure of a sewing machine as described in claim 5, characterized in that: It also includes protrusions (26), and the turntable (15) is provided with protrusions (26) evenly spaced along the circumference.