Clutch mechanism of needle bar driving block

Abstract

The utility model provides a clutch mechanism of a needle bar driving block, which comprises a jumping motor, the needle bar driving block and a clutch control mechanism, and the clutch control mechanism comprises a jumping driving swing arm driven by the jumping motor to swing and a rotating bearing connecting rod driven by the jumping driving swing arm to rotate. One end of the rotating bearing connecting rod is matched with the jumping driving swing arm, and the other end of the rotating bearing connecting rod is provided with a jumping shifting shaft capable of pushing the needle rod driving block to rotate to enable the needle rod driving block to be separated from or matched with the needle rod. The device is high in stability, simple in structure and easy to assemble and maintain.

Description

Technical Field

[0001] The utility model relates to the technical field of embroidery machines, in particular to a clutch mechanism of a needle bar driving block. Background Art

[0002] The needle bar mechanism is a very important part in the embroidery machine. Generally, the needle bar driver is used to drive the needle bar to move up and down to drop the needle. The needle bar driver is usually equipped with a drive block that matches the needle bar to drive the needle bar up and down. However, when it comes to operations such as changing colors or changing needle bars, the needle bar drive block needs to be separated from the needle bar and then matched with the needle bar when it needs to be driven. Therefore, a clutch mechanism is usually provided on the needle bar driver. The embroidery machines currently on the market directly drive the needle bar drive block to achieve clutch through the movement of the iron core of the electromagnet, but the defects of the electromagnet drive such as poor stability, complex structure, poor production and assembly process, poor maintenance process, and high cost have caused great obstacles to its promotion. Utility Model Content

[0003] In order to solve the defects of the above-mentioned prior art, the utility model provides a clutch mechanism of a needle bar driving structure, which adopts a jumping motor to drive a rotating bearing connecting rod, and utilizes the connecting rod to drive the driving block to rotate, so that the driving block cooperates or disengages with the needle bar. This driving method is more stable, highly controllable, simple in structure, and easy to install.

[0004] The technical solutions adopted are:

[0005] A clutch mechanism of a needle bar driving block comprises a jumping motor, a needle bar driving block and a clutch control mechanism, wherein the clutch control mechanism comprises a jumping driving swing arm driven to swing by the jumping motor, and a rotating bearing connecting rod driven to rotate by the jumping driving swing arm, wherein one end of the rotating bearing connecting rod cooperates with the jumping driving swing arm, and the other end is provided with a jumping dial shaft which can push the needle bar driving block to rotate so that the needle bar driving block and the needle bar are separated or engaged.

[0006] Furthermore, one end of the jumping driving swing arm is arranged on the output shaft of the jumping motor, and the other end of the jumping driving swing arm is provided with a driving cam matched with the rotating bearing connecting rod.

[0007] Furthermore, a first return spring is provided on the rotating shaft of the rotating bearing connecting rod.

[0008] Furthermore, a clamping structure is provided between the needle bar driving block and the needle bar.

[0009] Furthermore, the clamping structure comprises a clamping block and a clamping slot which cooperate with each other, the clamping block is arranged on the needle bar driving block, and the clamping slot is arranged at a corresponding position of the needle bar.

[0010] Furthermore, the needle bar driving block is provided with a driving protrusion which cooperates with the jumping dial shaft.

[0011] Furthermore, the needle bar driving block can be rotatably mounted on a mounting shaft of the needle bar driving block, and a second return spring is provided on the mounting shaft.

[0012] Compared with the prior art, the beneficial effects produced by the utility model are as follows: the utility model provides a clutch mechanism of a needle bar drive block, which adopts a jumping motor to drive a jumping drive swing arm, so that the jumping drive swing arm drives the needle bar drive block to rotate to make the needle bar drive block cooperate or disengage with the needle bar. This method has higher stability than the existing electromagnet, and has a simple structure and assembly and is not easy to damage. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0014] Figure 2 for Figure 1 Enlarged image at a;

[0015] Figure 3 It is a side view of the utility model;

[0016] Figure 4 for Figure 3 Enlarged view at b;

[0017] Figure 5 It is a schematic diagram of the overall structure of the utility model from another angle;

[0018] Figure 6 for Figure 5 An enlarged view of point c; wherein, the jumping motor 1, the needle bar driving block 2, the clutch control mechanism 3, the jumping driving swing arm 301, the rotating bearing connecting rod 302, the jumping dial shaft 303, the needle bar 4, the driving cam 5, the first return spring 6, the clamping structure 7, the clamping block 701, the clamping slot 702, the driving protrusion 8, and the second return spring 9. DETAILED DESCRIPTION

[0019] The present invention is further described below in conjunction with specific implementation methods. The "forward" mentioned refers to the direction from the needle bar driving block to the needle bar, and the "backward" mentioned refers to the direction from the needle bar to the needle bar driving block.

[0020] refer to Figure 1-6 A clutch mechanism of a needle bar driving block comprises a jumping motor 1, a needle bar driving block 2 and a clutch control mechanism 3, wherein the clutch control mechanism 3 comprises a jumping driving swing arm 301 driven to swing by the jumping motor 1, and a rotating bearing connecting rod 302 driven to rotate by the jumping driving swing arm 301, wherein one end of the rotating bearing connecting rod 302 cooperates with the jumping driving swing arm 301, and the other end is provided with a jumping dial shaft 303 which can push the needle bar driving block 2 to rotate so that the needle bar driving block 2 and the needle bar 4 are separated or matched.

[0021] Furthermore, one end of the jump driving swing arm 301 is arranged on the output shaft of the jump motor 1, and the other end is provided with a driving cam 5 matched with the rotating bearing connecting rod 302. The output shaft of the jump motor 1 rotates to drive the jump driving swing arm 301 to swing, and the driving cam 5 arranged at the other end of the jump driving swing arm 301 is used to push the rotating bearing connecting rod 302 to move. When the rotating bearing connecting rod 302 rotates and moves, the jump dial shaft 303 on the rotating bearing connecting rod 302 moves accordingly to dial the needle bar driving block 2 to rotate.

[0022] Furthermore, a first return spring 6 is provided on the rotating shaft of the rotating bearing connecting rod 302 .

[0023] Furthermore, mutually cooperating slots and buckles may be provided between the jumping driving swing arm 301 and the rotating bearing connecting rod 302 so that the jumping driving swing arm 301 can drive the rotating bearing connecting rod 302 to move.

[0024] Furthermore, the first return spring 6 is used to help the rotating bearing connecting rod 302 to return to its original position.

[0025] Furthermore, the needle bar driving block 2 can be rotatably mounted on a mounting shaft of the needle bar driving block, and a second return spring 9 is provided on the mounting shaft.

[0026] Furthermore, the driving cam 5 is arranged behind the rotating bearing connecting rod, and the driving cam 5 pushes the rotating bearing connecting rod forward, and the jumping dial shaft 303 moves backward; when the driving cam 5 moves backward, the rotating bearing connecting rod 302 returns to its original position under the action of the first return spring 6, and the jumping dial shaft 303 moves forward.

[0027] Furthermore, the needle bar driving block 2 is provided with a shifting block 8 which cooperates with the jumping shifting shaft 303 .

[0028] Furthermore, the jump dial shaft 303 is arranged behind the shift block 8. When the jump dial shaft 303 moves forward, the shift block 8 can be pushed to rotate forward, so that the needle bar driving block 2 rotates and cooperates with the needle bar 4. At this time, the needle bar driving block 2 can drive the needle bar 4 to move up and down; when the jump dial shaft 303 moves backward, the shift block 8 returns to its original position under the action of the second return spring 9, so that the needle bar driving block 2 rotates and disengages from the needle bar 4. At this time, the needle bar 4 is not controlled by the needle bar driving block 2 and can be changed and moved. When needed, the needle bar driving block 2 can be driven again to cooperate with it.

[0029] Furthermore, a clamping structure 7 is provided between the needle bar driving block 2 and the needle bar 4 .

[0030] Furthermore, the clamping structure 7 includes a clamping block 701 and a clamping slot 702 that cooperate with each other, wherein the clamping block 701 is disposed on the needle bar driving block 2, and the clamping slot 702 is disposed at a corresponding position of the needle bar 4. As another embodiment, the clamping block 701 may also be disposed on the needle bar 4, and the clamping slot 702 may be disposed on the needle bar driving block 2. Other structures may also be adopted, and as long as the two structures cooperate with each other, the needle bar drive can be realized.

[0031] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed by the utility model should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A clutch mechanism for a needle bar driving block, characterized in that: The invention comprises a jumping motor (1), a needle bar driving block (2) and a clutch control mechanism (3); the clutch control mechanism (3) comprises a jumping driving swing arm (301) driven to swing by the jumping motor (1), and a rotating bearing connecting rod (302) driven to rotate by the jumping driving swing arm (301); one end of the rotating bearing connecting rod (302) is matched with the jumping driving swing arm (301), and the other end is provided with a jumping dial shaft (303) capable of driving the needle bar driving block (2) to rotate so that the needle bar driving block (2) and the needle bar (4) are separated or matched.

2. The clutch mechanism of the needle bar driving block according to claim 1, characterized in that: One end of the jumping driving swing arm (301) is arranged on the output shaft of the jumping motor (1), and the other end of the jumping driving swing arm (301) is provided with a driving cam (5) that matches the rotating bearing connecting rod.

3. The clutch mechanism of the needle bar driving block according to claim 1, characterized in that: A first return spring (6) is provided on the rotating shaft of the rotating bearing connecting rod (302).

4. The clutch mechanism of the needle bar driving block according to claim 1, characterized in that: A clamping structure (7) is provided between the needle bar driving block (2) and the needle bar (4).

5. The clutch mechanism of the needle bar driving block according to claim 4, characterized in that: The clamping structure (7) comprises a clamping block (701) and a clamping slot (702) that cooperate with each other; the clamping block (701) is arranged on the needle bar driving block (2), and the clamping slot (702) is arranged at a corresponding position of the needle bar (4).

6. The clutch mechanism of the needle bar driving block according to claim 1, characterized in that: The needle bar driving block (2) is provided with a driving protrusion (8) that matches the jumping dial shaft (303).

7. The clutch mechanism of the needle bar driving block according to claim 1, characterized in that: The needle bar driving block (2) is rotatably mounted on a mounting shaft of the needle bar driving block, and a second return spring (9) is provided on the mounting shaft.

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