Cloth clamp for embroidery machine

Abstract

The cloth clamp for the embroidery machine comprises a fixed cloth clamping piece and a movable cloth clamping piece, the fixed cloth clamping piece and the movable cloth clamping piece are controlled to be opened and closed through a spring clamping switch device, the spring clamping switch device comprises a first pin shaft, the two ends of the first pin shaft are connected with one end of a first switch arm, and the other end of the first switch arm is connected with a second pin shaft. First bulges are arranged at the other ends of the two first switch arms, second switch arms are arranged on the side edges of the two first switch arms, a second pin shaft is arranged between one ends of the two second switch arms, second bulges are arranged at the other ends of the two second switch arms, the second pin shaft is connected with a movable switch, and the movable switch is rotationally connected with a fixed switch through a rotating shaft; and a spring is arranged between the first bulge and the second bulge. According to the cloth clamp for the embroidery machine, the elastic force of the spring is adjusted by controlling the distance between the first bulge and the second bulge through the rotation angle of the movable switch, the clamping force can be freely adjusted according to the thickness of cloth, and the cloth clamping effect is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of embroidery machines, in particular to a cloth clip for embroidery machines. Background Art

[0002] Embroidery machine cloth clips are universal components for clamping embroidery fabrics. Existing cloth clips all have a single structure, weak clamping force, and poor adaptability to fabrics of different thicknesses. How to improve the clamping stability of fabrics, especially special materials such as bead embroidery, is the subject of research by technicians in this field.

[0003] Chinese utility model patent No. CN202222975168.7 discloses a cloth clip including a cloth clamping protrusion; a cloth clip, the cloth clip includes two clamping arms and a clamping opening located between the two clamping arms, when the cloth clip is clamped on the cloth clamping protrusion, the cloth clamping protrusion is located in the clamping opening; an external pressure driving device, the external pressure driving device includes an airbag for driving the clamping opening of the cloth clip to open, the airbag includes an inflated state and a pressure relief state, when the airbag is in the pressure relief state, the cloth clip is clamped on the cloth clamping protrusion through the two clamping arms; when the airbag is in the inflated state, the airbag drives the clamping mouth of the cloth clip to open, and is not suitable for improving the clamping stability of special materials such as bead embroidery. Utility Model Content

[0004] The utility model provides a cloth clamp for an embroidery machine which has a simple structure and adjustable clamping force and is suitable for embroidery of special materials such as bead embroidery.

[0005] A cloth clamp for an embroidery machine comprises a fixed cloth clamp and a movable cloth clamp. The fixed and movable cloth clamps are opened and closed by a spring-loaded switch mechanism. The spring-loaded switch mechanism comprises a first pin, each end of which is connected to one end of a first switch arm. The other ends of the two first switch arms are each provided with a first protrusion. A second switch arm is provided on either side of the two first switch arms. A second pin is provided between one end of the two second switch arms. The other ends of the two second switch arms are each provided with a second protrusion. The second pin is connected to a movable switch, which is rotatably connected to the fixed switch via a rotating shaft. A spring is provided between the first and second protrusions. The rotation angle of the movable switch controls the spacing between the first and second protrusions to adjust the spring force. This embroidery machine cloth clamp utilizes two spring-loaded switch mechanisms to form a set, collectively controlling a relatively long fixed and movable cloth clamp. This allows for a long, large, and stable clamping force. Furthermore, the rotation angle of the movable switch controls the spacing between the first and second protrusions to adjust the spring force, thereby adapting to the different clamping forces required for fabrics of varying thicknesses.

[0006] The fixed cloth clamp is a strip-shaped structure with spring-loaded switch devices installed at both ends. These two spring-loaded switch devices jointly control a movable cloth clamp. The movable cloth clamp has protruding teeth spaced apart on the cloth-clamping side, and two buckles on the opposite side of the cloth-clamping side, each of which engages the spring-loaded switch devices. The fixed cloth clamp is a U-shaped structure, with spring-loaded switch devices installed on each of the two U-shaped arms, making it easy for the operator to operate with both hands.

[0007] One side of the buckle engages with a first pin, while the other side engages with one end of a torsion spring. The other end of the torsion spring is screwed to a first mounting plate. The first mounting plate is connected to a fixed cloth clamp via a second screw. The fixed cloth clamp has a first adjustment slot that engages with the second screw. The fixed switch is fixedly connected to a second mounting plate, which is connected to the fixed cloth clamp via a third screw. The fixed cloth clamp has a second adjustment slot that engages with the third screw. The first and second adjustment slots are adjusted in distance by cooperating to move the first and second mounting plates, thereby adjusting the elastic force of the spring clamping switch device.

[0008] The utility model discloses a cloth clamp for an embroidery machine, which controls the distance between the first protrusion and the second protrusion by rotating the movable switch to adjust the spring force. The clamping force can be freely adjusted according to the thickness of the cloth, thereby improving the cloth clamping effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] The present invention will be further described below with reference to the accompanying drawings:

[0010] Figure 1 This is a schematic diagram of the three-dimensional structure of a cloth clip for an embroidery machine according to the present utility model;

[0011] Figure 2 This is a schematic diagram of the three-dimensional structure of a cloth clip for an embroidery machine in an open state according to the present invention;

[0012] Figure 3 This is a schematic diagram of the three-dimensional structure of a movable cloth clamp in a cloth clamp for an embroidery machine according to the present invention;

[0013] Figure 4 This is a schematic diagram of the three-dimensional structure of a cloth clamp spring clamping switch device for an embroidery machine according to the present invention;

[0014] Figure 5 The utility model is a schematic diagram of the three-dimensional structure of a cloth clamp spring clamping switch device for an embroidery machine. Specific implementation plan

[0015] The following is combined with Figure 1-5 The specific implementation method further describes the technical solution of this patent in detail.

[0016] A cloth clamp for an embroidery machine comprises a fixed cloth clamp piece 1 and a movable cloth clamp piece 11. The fixed cloth clamp piece 1 and the movable cloth clamp piece 11 are controlled to open and close by a spring clamping switch device 19. The spring clamping switch device 19 comprises a first pin shaft 14. Both ends of the first pin shaft 14 are connected to one end of a first switch arm 17. The other ends of the two first switch arms 17 are each provided with a first protrusion 31. The sides of the two first switch arms 17 are each provided with a second switch arm 16. A second pin shaft 21 is provided between one end of the two second switch arms 16. The other ends of the two second switch arms 16 are each provided with a second protrusion 30. The second pin shaft 21 is connected to a movable switch 2. The movable switch 2 is rotatably connected to the fixed switch 5 via a rotating shaft 33. A spring 18 is provided between the first protrusion 31 and the second protrusion 30. The rotation angle of the movable switch 2 controls the distance between the first protrusion 31 and the second protrusion 30 to adjust the elastic force of the spring 18, so as to improve the clamping force adjustment for different fabrics. The fixed cloth clamping piece 1 is in a U-shaped structure, and spring clamping switch devices are respectively installed on the two U-shaped arms of the U-shaped structure, which is convenient for the operator to operate with both hands.

[0017] The fixed cloth clamping piece 1 is preferably a strip-shaped structure, with spring clamping switch devices 19 installed at both ends of the strip. The two spring clamping switch devices 19 jointly control a strip-shaped movable cloth clamping piece 11. The movable cloth clamping piece 11 has protruding clamping teeth 20 spaced apart on the cloth clamping side, and two buckles 15 are provided on the opposite side of the cloth clamping side, respectively engaging the spring clamping switch devices 19. The spaced-apart clamping teeth 20 are particularly suitable for mounting and clamping irregularly shaped items on fabrics such as bead embroidery.

[0018] To facilitate quick closing, one side of the buckle 15 engages with the first pin 14, and the other side of the buckle 15 engages with one end of the torsion spring 6. The other end of the torsion spring 6 is connected to the first mounting plate 10 via a screw 4. The first mounting plate 10 is connected to the fixed cloth clamp 1 via a second screw 13. The fixed cloth clamp 1 has a first adjustment slot 12 that engages the second screw 13. The fixed switch 5 is fixedly connected to the second mounting plate 3, which is connected to the fixed cloth clamp 1 via a third screw 7. The fixed cloth clamp 1 has a second adjustment slot 8 that engages the third screw 7. The movable switch 2 rotates up and down to control the distance between the first protrusion 31 and the second protrusion 30, thereby adjusting the tension of the spring 18 on the buckle 15, thereby achieving the desired grip of the fixed cloth clamp 1 and the movable cloth clamp 11 on the fabric.

[0019] The above describes in detail the preferred embodiments of this patent, but this patent is not limited to the above embodiments. Various changes can be made within the knowledge of ordinary technicians in this field without departing from the purpose of this patent.

Claims

1. A cloth clamp for an embroidery machine, comprising a fixed cloth clamping piece (1) and a movable cloth clamping piece (11), characterized in that: The fixed cloth clamping piece (1) and the movable cloth clamping piece (11) are controlled to open and close by a spring clamping switch device (19), and the spring clamping switch device (19) comprises a first pin shaft (14), both ends of the first pin shaft (14) are connected to one end of a first switch arm (17), the other ends of the two first switch arms (17) are provided with a first protrusion (31), the sides of the two first switch arms (17) are provided with a second switch arm (16), a second pin shaft (21) is provided between one ends of the two second switch arms (16), the other ends of the two second switch arms (16) are provided with a second protrusion (30), the second pin shaft (21) is connected to the movable switch (2), and the movable switch (2) is connected to the fixed switch (5) by rotating through a rotating shaft (33); a spring (18) is provided between the first protrusion (31) and the second protrusion (30), and the rotation angle of the movable switch (2) controls the distance between the first protrusion (31) and the second protrusion (30) to adjust the elastic force of the spring (18).

2. The cloth clip for embroidery machines according to claim 1, characterized in that: The fixed cloth clamping piece (1) is a strip-shaped structure, and spring clamping switch devices (19) are provided at both ends of the strip-shaped structure. The two spring clamping switch devices (19) jointly control a strip-shaped movable cloth clamping piece (11). The cloth clamping side of the movable cloth clamping piece (11) is provided with protruding clamping teeth (20) at intervals, and two buckles (15) are provided opposite to the cloth clamping side, which respectively cooperate with the spring clamping switch devices (19).

3. The cloth clip for embroidery machines according to claim 2, characterized in that: One side of the buckle (15) is engaged with the first pin (14), and the other side of the buckle (15) is engaged with one end of the torsion spring (6). The other end of the torsion spring (6) is connected to the first mounting plate (10) via a screw (4). The first mounting plate (10) is connected to the fixed cloth clip (1) via a second screw (13). The fixed cloth clip (1) is provided with a first adjustment slot (12) engaged with the second screw (13).

4. The cloth clip for embroidery machines according to claim 1, characterized in that: The fixed switch (5) is fixedly connected to the second mounting plate (3), the second mounting plate (3) is connected to the fixed cloth clamp (1) via a third screw (7), and the fixed cloth clamp (1) is provided with a second adjustment slot (8) that cooperates with the third screw (7).

5. The cloth clip for embroidery machines according to claim 1, characterized in that: The fixed cloth clip (1) is in a U-shaped structure.

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