Automatic thread clamping device of industrial sewing machine

Abstract

The utility model relates to the technical field of sewing machines, and discloses an industrial sewing machine automatic thread clamping device which comprises a mounting plate, a mounting hole is formed in the surface of the mounting plate, an extension plate is fixedly connected to the front end of the mounting hole, a sliding rod is fixedly connected to the front end of the extension plate, and a movable clamping plate is slidably connected to the surface of the sliding rod. A fixed clamping plate is fixedly connected to the front end of the sliding rod, a driving motor is installed at the front end of the extension plate, a fixed rod is fixedly connected to the front end of the driving motor, and an extension rod is slidably connected to the interior of the fixed rod. When a worker needs to clamp a thread, the driving motor enables the movable clamping plate to move towards the static clamping plate, the thread is automatically clamped when the movable clamping plate reaches a proper position, and the movable clamping plate and the static clamping plate clamp the thread, so that the thread is automatically clamped when the sewing machine works, and the sewing machine can be independently controlled through the driving motor; when the problem that the thread ends are stuck occurs, the thread clamping device can be operated in time for processing.

Description

Technical Field

[0001] The utility model relates to the technical field of sewing machines, in particular to an automatic thread clamping device for an industrial sewing machine. Background Art

[0002] A sewing machine is a machine used to sew clothes, fabrics and other cloths. It usually consists of a pin, a bobbin, a thread tension adjustment device and a pedal. Existing sewing machines require an automatic thread clamping device when in use so that the thread can be automatically tightened.

[0003] Most of the existing sewing machine thread clamping devices are used in conjunction with the sewing machine. However, during use, the sewing machine and the thread clamping device cannot be operated separately, so the thread clamping device fails to completely release the thread when the sewing machine is sewing, causing the thread end to be stuck inside the sewing machine, causing line confusion and affecting the normal use of the sewing machine. Utility Model Content

[0004] The technical problem to be solved by the utility model is that in the prior art, the thread clamping device and the sewing machine are mostly linked, which causes the problem that the thread ends are stuck inside the machine during use, affecting the use of the sewing machine. For this reason, we propose an automatic thread clamping device for an industrial sewing machine.

[0005] The technical solution adopted by the utility model to solve its technical problems is: an automatic thread clamping device for an industrial sewing machine, comprising a mounting plate, a mounting hole is opened on the surface of the mounting plate, an extension plate is fixedly connected to the front end of the mounting hole, a sliding rod is fixedly connected to the front end of the extension plate, a movable clamping plate is slidably connected to the surface of the sliding rod, a static clamping plate is fixedly connected to the front end of the sliding rod, a driving motor is installed at the front end of the extension plate, a fixed rod is fixedly connected to the front end of the driving motor, an extension rod is slidably connected to the inside of the fixed rod, and the front end of the extension rod is fixedly connected to the rear end of the movable clamping plate.

[0006] Preferably, a first sliding groove is opened on the right side of the fixing rod, a first sliding block is fixedly connected to the right side of the extending rod, and the interior of the first sliding groove is slidably connected to the first sliding block.

[0007] Preferably, the sliding rod is made of stainless steel with a smooth surface.

[0008] Preferably, the right end of the static clamp is fixedly connected to a fixed block, a sliding opening is opened on the surface of the fixed block, a traction rod is slidably connected inside the sliding opening, a handle is fixedly connected to the top end of the traction rod, and a cutting plate is fixedly connected to the bottom end of the traction rod.

[0009] Preferably, a return spring is slidably connected to the surface of the traction rod, the top end of the return spring is fixedly connected to the bottom end of the fixed block, and the bottom end of the return spring is fixedly connected to the top end of the cutting plate.

[0010] Preferably, a second sliding groove is provided on the surface of the traction rod, a second sliding block is slidably connected inside the second sliding groove, and one end of the second sliding block close to the sliding opening is fixedly connected to the sliding opening.

[0011] Technical effects and advantages of the utility model:

[0012] In the utility model, when the staff needs to clamp the thread, the movable clamping plate is moved toward the static clamping plate. When it reaches a suitable position, the thread is automatically clamped, and the movable clamping plate and the static clamping plate clamp the thread, thereby achieving automatic thread clamping when the sewing machine is working. When the problem of thread end being stuck occurs, the thread clamping device can be operated in time to deal with it.

[0013] In the utility model, when the device clamps the wire, the wire may be too long and needs to be trimmed to make the wire clamping device operate normally. At this time, the handle is pushed downward to drive the cutting plate to cut off the excess wire, so that the wire returns to its normal length, thereby achieving rapid trimming when trimming is needed, thereby improving the work efficiency of the staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the main structure of the device of the utility model;

[0015] Figure 2 This is a schematic diagram of the automatic movement structure of the movable clamping plate of the utility model;

[0016] Figure 3 For the utility model Figure 2 The enlarged structural diagram at A in the middle;

[0017] Figure 4 It is a schematic structural diagram of the convenient wire cutting device of the utility model.

[0018] Legend: 1. Mounting plate; 2. Mounting hole; 3. Extension plate; 4. Sliding rod; 5. Moving clamp; 6. Static clamp; 7. Driving motor; 8. Fixed rod; 9. Extending rod; 10. First slide groove; 11. First slider; 12. Fixed block; 13. Sliding opening; 14. Pull rod; 15. Handle; 16. Cutting plate; 17. Reset spring; 18. Second slide groove; 19. Second slider. DETAILED DESCRIPTION

[0019] The present invention will now be further described in detail in conjunction with the accompanying drawings and preferred embodiments. These drawings are simplified schematic diagrams that only illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.

[0020] Reference Figure 1 - Figure 2 As shown, the utility model provides a technical solution: an automatic thread clamping device for an industrial sewing machine, comprising a mounting plate 1, a mounting hole 2 is opened on the surface of the mounting plate 1, an extension plate 3 is fixedly connected to the front end of the mounting hole 2, a sliding rod 4 is fixedly connected to the front end of the extension plate 3, a movable clamping plate 5 is slidably connected to the surface of the sliding rod 4, a static clamping plate 6 is fixedly connected to the front end of the sliding rod 4, a driving motor 7 is installed at the front end of the extension plate 3, a fixing rod 8 is fixedly connected to the front end of the driving motor 7, an extension rod 9 is slidably connected to the inside of the fixed rod 8, and the front end of the extension rod 9 is fixedly connected to the rear end of the moving clamping plate 5.

[0021] The following is a detailed description of the specific settings and functions of its convenient wire clamping device and convenient wire cutting device.

[0022] Reference Figure 1 - Figure 3 As shown, in this embodiment: when the staff needs to clamp the thread, the movable clamping plate 5 moves toward the static clamping plate 6. When it reaches a suitable position, the thread is automatically clamped, and the movable clamping plate 5 and the static clamping plate 6 clamp the thread, thereby achieving automatic thread clamping when the sewing machine is working. When the problem of thread end getting stuck occurs, the thread clamping device can be manipulated in time to deal with it. A first slide groove 10 is opened on the right side of the fixed rod 8, and a first slider 11 is fixedly connected to the right side of the extension rod 9. The interior of the first slide groove 10 is slidably connected to the first slider 11. When the driving motor 7 drives the extension rod 9 to move, the interior of the first slide groove 10 is The first slide groove 10 and the first slide groove 11 are slidably connected with the first slide block 11, so when the extending rod 9 moves inside the fixed rod 8, the first slide groove 10 and the first slide block 11 form a stable limit, thereby achieving a stable limit when the movable clamping plate 5 moves to prevent deviation from causing the inability to clamp the wire. The sliding rod 4 is made of stainless steel with a smooth surface. When the driving motor 7 drives the extending rod 9 to push the movable clamping plate 5 to move, because the sliding rod 4 is made of stainless steel with a smooth surface, the movable clamping plate 5 will be lighter when moving, and the surface of the sliding rod 4 will not rust and affect the normal clamping of the device, thereby improving the practicability of the device.

[0023] Reference Figure 1 and Figure 4As shown, specifically, the right end of the static clamping plate 6 is fixedly connected to a fixed block 12, and a sliding opening 13 is opened on the surface of the fixed block 12. A traction rod 14 is slidably connected inside the sliding opening 13. A handle 15 is fixedly connected to the top of the traction rod 14, and a cutting plate 16 is fixedly connected to the bottom end of the traction rod 14. When the device clamps the line, the line may be too long and needs to be trimmed to make the line clamping device operate normally. At this time, the handle 15 is pushed downward to drive the cutting plate 16 to cut off the excess line, so that the line returns to a normal length, thereby achieving rapid trimming when the line needs to be trimmed, thereby improving the work efficiency of the staff. A reset spring 17 is slidably connected to the surface of the traction rod 14, and the top of the reset spring 17 is fixedly connected to the bottom end of the fixed block 12, and the bottom end of the reset spring 17 is fixed to the top of the cutting plate 16 When the staff has finished trimming, they release the handle 15. At this time, the elastic force stored in the reset spring 17 is released to drive the cutting plate 16 to quickly reset, thereby achieving the rapid reset of the cutting plate 16 after the line trimming is completed, which is convenient for the staff to use next time. A second slide groove 18 is provided on the surface of the traction rod 14, and a second slider 19 is slidably connected inside the second slide groove 18. The end of the second slider 19 close to the sliding opening 13 is fixedly connected to the sliding opening 13. When the staff pushes the handle 15 to drive the traction rod 14 to slide, the second slide groove 18 is slidably connected inside the second slider 19. Therefore, when the traction rod 14 moves, the second slide groove 18 and the second slider 19 form a stable limit, so that the cutting plate 16 forms a stable limit when it moves, thereby achieving stable cutting of the line by the cutting plate 16.

[0024] When the driving motor 7 drives the extending rod 9 to move, because the interior of the first slide groove 10 is slidably connected with the first slider 11, when the extending rod 9 moves inside the fixed rod 8, the first slide groove 10 and the first slider 11 form a stable limit, thereby achieving a stable limit when the movable clamping plate 5 moves to prevent deviation from causing the inability to clamp the thread. When the driving motor 7 drives the extending rod 9 to push the movable clamping plate 5 to move, because the sliding rod 4 is made of stainless steel with a smooth surface, it is relatively light when the movable clamping plate 5 moves, and the rust on the surface of the sliding rod 4 will not affect the normal clamping of the device. The wire is cut off when the wire is trimmed, which improves the practicality of the device. When the device clamps the wire, the wire may be too long and needs to be trimmed to make the wire clamping device operate normally. At this time, the handle 15 is pushed downward to drive the cutting plate 16 to cut off the excess wire and return the wire to its normal length, thereby achieving rapid trimming when the wire needs to be trimmed, thereby improving the work efficiency of the staff. When the staff has finished trimming, the handle 15 is released. At this time, the elastic force stored in the reset spring 17 is released to drive the cutting plate 16 to reset quickly, thereby achieving rapid reset of the cutting plate 16 after the wire trimming is completed, which is convenient for the staff to use next time. When the staff pushes the handle 15 to drive the traction rod 14 to slide, the second slide groove 18 is internally slidably connected to the second slider 19, so when the traction rod 14 moves, the second slide groove 18 and the second slider 19 form a stable limit, so that the cutting plate 16 forms a stable limit when it moves, thereby achieving stable cutting of the wire by the cutting plate 16.

[0025] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An automatic thread clamping device for an industrial sewing machine, comprising a mounting plate (1), characterized in that: The surface of the mounting plate (1) is provided with a mounting hole (2), the front end of the mounting hole (2) is fixedly connected to an extension plate (3), the front end of the extension plate (3) is fixedly connected to a sliding rod (4), the surface of the sliding rod (4) is slidably connected to a movable clamping plate (5), the front end of the sliding rod (4) is fixedly connected to a static clamping plate (6), the front end of the extension plate (3) is installed with a driving motor (7), the front end of the driving motor (7) is fixedly connected to a fixing rod (8), the interior of the fixing rod (8) is slidably connected to an extension rod (9), and the front end of the extension rod (9) is fixedly connected to the rear end of the movable clamping plate (5).

2. The automatic thread clamping device for an industrial sewing machine according to claim 1, characterized in that: A first sliding groove (10) is provided on the right side of the fixed rod (8), a first sliding block (11) is fixedly connected to the right side of the extending rod (9), and the interior of the first sliding groove (10) is slidably connected to the first sliding block (11).

3. The automatic thread clamping device for an industrial sewing machine according to claim 1, characterized in that: The sliding rod (4) is made of stainless steel with a smooth surface.

4. The automatic thread clamping device for an industrial sewing machine according to claim 1, characterized in that: The right end of the static clamping plate (6) is fixedly connected to a fixed block (12), a sliding opening (13) is provided on the surface of the fixed block (12), a traction rod (14) is slidably connected inside the sliding opening (13), a handle (15) is fixedly connected to the top end of the traction rod (14), and a cutting plate (16) is fixedly connected to the bottom end of the traction rod (14).

5. The automatic thread clamping device for an industrial sewing machine according to claim 4, characterized in that: A return spring (17) is slidably connected to the surface of the traction rod (14), the top end of the return spring (17) is fixedly connected to the bottom end of the fixed block (12), and the bottom end of the return spring (17) is fixedly connected to the top end of the cutting plate (16).

6. The automatic thread clamping device for an industrial sewing machine according to claim 4, characterized in that: A second sliding groove (18) is provided on the surface of the traction rod (14), a second sliding block (19) is slidably connected inside the second sliding groove (18), and one end of the second sliding block (19) close to the sliding opening (13) is fixedly connected to the sliding opening (13).

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