Computerized embroidery machine capable of conveniently adjusting tension of embroidery threads

Abstract

The utility model relates to the technical field of embroidery machines, in particular to a computerized embroidery machine convenient for adjusting the tension of embroidery threads, which comprises an embroidery machine main body, a pneumatic component and a plurality of clamping plate groups, the pneumatic assembly comprises a main air cylinder fixed relative to the embroidery machine main body, a driving piston rod of which a piston head is arranged in the main air cylinder in a sliding manner and which divides the interior of the main air cylinder into a first cavity and a second cavity, a plurality of auxiliary air cylinders communicated with the first cavity, and driven piston rods of which piston heads are arranged in the auxiliary air cylinders and can slide in the longitudinal direction; each clamping plate group comprises a first clamping plate and a second clamping plate which are oppositely arranged along the longitudinal direction, the first clamping plate is relatively fixed with the embroidery machine main body, and the second clamping plate is relatively fixed with the driven piston rod. Adjustment of clamping force of a plurality of embroidery threads can be synchronously achieved by controlling movement of the driving piston rod, independent adjustment is not needed, and operation is simpler and more convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of embroidery machines, in particular to a computer embroidery machine which is convenient for adjusting the tension of embroidery threads. Background Art

[0002] Computerized embroidery machines are widely used in the textile industry. During its operation, a key component is the thread clamp, which is responsible for fixing the embroidery thread and maintaining the appropriate tension. Usually, the thread clamp consists of two clamps that work together on the embroidery thread, and one of the two clamps can be moved toward the other clamp to clamp or loosen the embroidery thread.

[0003] However, in existing computer embroidery machines, the thread clamps are usually multiple and independent units. When different embroidery threads need to be used for operation, the operator must manually adjust the clamping force for each thread clamp. This process is often repetitive and cumbersome because each time the embroidery thread is changed, each thread clamp needs to be adjusted individually to ensure proper tension. For this reason, we provide a computer embroidery machine that is easy to adjust the embroidery thread tension. Utility Model Content

[0004] The utility model aims to provide a computer embroidery machine which is convenient for adjusting the tension of embroidery threads, so as to solve the problems raised in the above-mentioned background technology.

[0005] The utility model is realized by the following technical solutions:

[0006] A computer embroidery machine for adjusting the tension of embroidery threads, comprising an embroidery machine body, a pneumatic assembly and a plurality of clamping plate groups; the pneumatic assembly comprises a main cylinder relatively fixed to the embroidery machine body, an active piston rod with a piston head slidably arranged inside the main cylinder and dividing the inside of the main cylinder into a first cavity and a second cavity, a plurality of sub-cylinders connected to the first cavity and a passive piston rod with a piston head arranged in the sub-cylinder and slidable in the longitudinal direction; each of the clamping plate groups comprises a first clamping plate and a second clamping plate arranged opposite to each other along the longitudinal direction, the first clamping plate being relatively fixed to the embroidery machine body, and the second clamping plate being relatively fixed to the passive piston rod.

[0007] Optionally, the active piston rod is coaxial with one end of the master cylinder and is threadedly connected, and the master cylinder is provided with a constant pressure hole for connecting the second cavity with the outside.

[0008] Optionally, an air pressure display is provided on the active piston rod, and a detection end of the air pressure display is connected to the first cavity.

[0009] Optionally, the end of the first clamping plate facing away from the second clamping plate is a heat dissipation end, a heat dissipation groove is provided on the heat dissipation end, and a dissipation fan with an exhaust side facing the heat dissipation groove of the heat dissipation end is installed on the embroidery machine body.

[0010] Optionally, the end of the first clamping plate facing the second clamping plate is the clamping end, and both the clamping end of the first clamping plate and the second clamping plate are provided with limiting grooves, the width of the limiting grooves gradually increases from the middle to both ends, and the depth of the limiting grooves is less than the radius of the embroidery thread.

[0011] Optionally, a spherical connecting portion is provided on the second clamping plate, and a spherical connecting hole rotatably matched with the connecting portion is provided on the passive piston rod.

[0012] Compared with the prior art, the utility model provides a computer embroidery machine that is convenient for adjusting the tension of embroidery thread, and has the following beneficial effects:

[0013] 1. The utility model can simultaneously push multiple passive piston rods to move longitudinally by moving the active piston rod, thereby simultaneously changing the distance between the two clamping plates in each clamping plate group, thereby achieving simultaneous clamping and release of multiple embroidery threads, and the adjustment of the clamping force of multiple embroidery threads can be synchronously achieved by controlling the movement of the active piston rod, without the need for separate adjustment, and the operation is simpler and more convenient;

[0014] 2. The utility model connects the active piston rod and the main cylinder by threaded connection, which not only facilitates the movement of the active piston rod, but also ensures the automatic locking of the position of the active piston rod after movement. The setting of the constant pressure hole can make the air pressure in the second cavity always the same as that outside, thereby reducing the resistance of the active piston rod when it moves in the direction away from the first cavity;

[0015] 3. The utility model can prevent the embroidery thread from deviating by arranging limiting grooves on the first clamping plate and the second clamping plate, and ensure that the embroidery thread is stably clamped between the first clamping plate and the second clamping plate. Moreover, since the width gradually increases from the middle to both ends, the embroidery thread has more optional angles for entering and exiting the first clamping plate and the second clamping plate, and has better applicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0017] Figure 2 This is a schematic diagram of the main structure of the utility model;

[0018] Figure 3 For this utility model Figure 2 Schematic diagram of the cross-section structure at AA;

[0019] Figure 4 For this utility model Figure 2 Schematic diagram of the cut structure at BB;

[0020] Figure 5 This is a schematic diagram of the connection structure between the pneumatic assembly and the second clamping plate of the utility model;

[0021] Figure 6 This is a schematic diagram of the first clamping plate structure of the utility model.

[0022] In the figure: 1. Embroidery machine body; 2. Main cylinder; 3. Active piston rod; 4. First cavity; 5. Second cavity; 6. Auxiliary cylinder; 7. Passive piston rod; 8. First clamping plate; 9. Second clamping plate; 10. Constant pressure hole; 11. Air pressure display; 12. Heat dissipation groove; 13. Limiting groove; 14. Heat dissipation fan; 15. Connecting part; 16. Connecting hole. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] Example: See Figures 1 to 6 According to an embodiment of the utility model, a technical solution is provided: a computer embroidery machine for adjusting the tension of embroidery threads, comprising an embroidery machine body 1, a pneumatic assembly and a plurality of clamping plate groups; the pneumatic assembly comprises a main cylinder 2 relatively fixed to the embroidery machine body 1, an active piston rod 3 with a piston head slidably arranged inside the main cylinder 2 and dividing the inside of the main cylinder 2 into a first cavity 4 and a second cavity 5, a plurality of sub-cylinders 6 connected to the first cavity 4, and a passive piston rod 7 with a piston head arranged in the sub-cylinder 6 and slidable in the longitudinal direction; each clamping plate group comprises a first clamping plate 8 and a second clamping plate 9 arranged opposite to each other in the longitudinal direction, the first clamping plate 8 is relatively fixed to the embroidery machine body 1, and the second clamping plate 9 is relatively fixed to the passive piston rod 7.

[0025] When the above scheme is implemented, by moving the active piston rod 3, multiple passive piston rods 7 are pushed to move longitudinally at the same time, thereby simultaneously changing the distance between the two clamping plates in each clamping plate group, thereby achieving simultaneous clamping and release of multiple embroidery threads, and the adjustment of the clamping force of multiple embroidery threads can be achieved synchronously by controlling the movement of the active piston rod 3, without the need for separate adjustment, and the operation is simpler and more convenient.

[0026] In this exemplary embodiment, the active piston rod 3 is coaxial with one end of the master cylinder 2 and is threadedly connected, and a constant pressure hole 10 is provided on the master cylinder 2 to connect the second cavity 5 with the outside. The active piston rod 3 and the master cylinder 2 are connected by threaded connection, which not only facilitates the movement of the active piston rod 3, but also ensures that the position of the active piston rod 3 is automatically locked after movement. The setting of the constant pressure hole 10 can make the air pressure in the second cavity 5 always the same as that outside, thereby reducing the resistance of the active piston rod 3 when it moves in the direction away from the first cavity 4.

[0027] In this exemplary embodiment, an air pressure display 11 is provided on the active piston rod 3, and a detection end (not shown) of the air pressure display 11 is connected to the first cavity 4. The air pressure display 11 can monitor the air pressure in the first cavity 4 in real time, so that the user can find the air leakage of the first cavity 4 in time.

[0028] Since the movement between the embroidery rope and the first clamping plate 8 and the second clamping plate 9 is sliding friction, a large amount of heat will be generated, which may cause the embroidery rope to break. Therefore, in this exemplary embodiment, the end of the first clamping plate 8 facing away from the second clamping plate 9 is a heat dissipation end, and a heat dissipation groove 12 is provided on the heat dissipation end. The embroidery machine body 1 is equipped with a fan with an exhaust side facing the heat dissipation groove 12 of the heat dissipation end. Through the cooperation of the heat dissipation fan 14 and the heat dissipation groove 12 of the heat dissipation end, the temperature of the first clamping plate 8 can be effectively reduced, thereby reducing the risk of embroidery rope breakage.

[0029] In this exemplary embodiment, the end of the first clamping plate 8 facing the second clamping plate 9 is the clamping end, and the clamping end of the first clamping plate 8 and the second clamping plate 9 are both provided with a limiting groove 13, the width of the limiting groove 13 gradually increases from the middle to the two ends, and the depth of the limiting groove 13 is less than the radius of the embroidery thread. By providing the limiting groove 13 on the first clamping plate 8 and the second clamping plate 9, the embroidery thread can be prevented from deviating, ensuring that the embroidery thread is stably clamped between the first clamping plate 8 and the second clamping plate 9, and because the width gradually increases from the middle to the two ends, the embroidery thread has more optional angles for entering and exiting the first clamping plate 8 and the second clamping plate 9, and has better applicability.

[0030] In this exemplary embodiment, a spherical connecting portion 15 is provided on the second clamping plate 9, and a spherical connecting hole 16 is provided on the passive piston rod 7 to rotate with the connecting portion 15. The second clamping plate 9 is rotatably connected to the passive piston rod 7 through the rotational cooperation between the connecting portion 15 and the connecting hole 16, so that the second clamping plate 9 and the first clamping plate 8 can be better fitted.

[0031] Working principle: Place the embroidery thread between the first clamping plate 8 and the second clamping plate 9, and move the active piston rod 3 toward the first cavity 4 to push the multiple passive piston rods 7 to move longitudinally, while reducing the distance between the two clamping plates in each clamping plate group until multiple embroidery threads are clamped at the same time. At this time, the clamped embroidery thread has a certain tension. When the embroidery thread needs to be removed, just move the active piston rod 3 away from the first cavity 4 to release the multiple embroidery threads at the same time.

[0032] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A computer embroidery machine that is convenient for adjusting the tension of embroidery thread, characterized in that: The invention comprises an embroidery machine body (1), a pneumatic assembly and a plurality of clamping plate groups; the pneumatic assembly comprises a main cylinder (2) fixed relative to the embroidery machine body (1), an active piston rod (3) whose piston head is slidably arranged inside the main cylinder (2) and divides the inside of the main cylinder (2) into a first cavity (4) and a second cavity (5), a plurality of auxiliary cylinders (6) connected to the first cavity (4) and a passive piston rod (7) whose piston head is arranged in the auxiliary cylinder (6) and can slide in the longitudinal direction; each of the clamping plate groups comprises a first clamping plate (8) and a second clamping plate (9) arranged relative to each other along the longitudinal direction, the first clamping plate (8) being fixed relative to the embroidery machine body (1), and the second clamping plate (9) being fixed relative to the passive piston rod (7).

2. The computer embroidery machine for adjusting the tension of embroidery thread according to claim 1, characterized in that: The active piston rod (3) is coaxial with one end of the master cylinder (2) and is threadedly connected. The master cylinder (2) is provided with a constant pressure hole (10) for connecting the second cavity (5) with the outside.

3. The computer embroidery machine for adjusting the tension of embroidery thread according to claim 2, characterized in that: The active piston rod (3) is provided with an air pressure display (11), and a detection end of the air pressure display (11) is connected to the first cavity (4).

4. The computer embroidery machine for adjusting the tension of embroidery thread according to claim 1, characterized in that: The end of the first clamping plate (8) facing away from the second clamping plate (9) is a heat dissipation end, and a heat dissipation groove (12) is provided on the heat dissipation end. The embroidery machine body (1) is equipped with a dissipation fan with an exhaust side facing the heat dissipation groove (12) of the heat dissipation end.

5. A computer embroidery machine for adjusting the tension of embroidery thread according to claim 1 or 4, characterized in that: One end of the first clamping plate (8) facing the second clamping plate (9) is a clamping end, and both the clamping end of the first clamping plate (8) and the second clamping plate (9) are provided with a limiting groove (13), the width of the limiting groove (13) gradually increases from the middle to both ends, and the depth of the limiting groove (13) is less than the radius of the embroidery thread.

6. The computer embroidery machine for adjusting the tension of embroidery thread according to claim 5, characterized in that: The second clamping plate (9) is provided with a spherical connecting portion (15), and the passive piston rod (7) is provided with a spherical connecting hole (16) rotatably matched with the connecting portion (15).

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