Thread tension synchronous adjusting device applied to embroidery machine and embroidery machine

Abstract

The utility model discloses a thread tension synchronous adjusting device applied to an embroidery machine and the embroidery machine, and aims to provide a thread tension synchronous adjusting device which can automatically adjust the pressing force of an embroidery thread as required, effectively improve the accuracy and consistency of tightness adjustment of the embroidery thread, improve the quality of an embroidery product and reduce the production cost. The utility model discloses a thread tension synchronous adjusting device applied to an embroidery machine and the embroidery machine. The yarn tension adjusting device comprises a support and at least one yarn tension adjusting unit arranged on the support, wherein the yarn tension adjusting unit comprises a fixed yarn pressing surface fixedly arranged on the support; a plurality of dynamic wire pressing sheets which are distributed side by side; and the electromagnet is fixedly arranged on the bracket, and when the electromagnet is electrified, each movable thread pressing sheet corresponding to the thread tension adjusting unit is adsorbed on the corresponding fixed thread pressing surface under the magnetic attraction action of the electromagnet, so that the embroidery thread of the embroidery machine is tightly pressed between the movable thread pressing sheets and the fixed thread pressing surfaces.

Description

Technical Field

[0001] This utility model relates to the field of embroidery machine technology, specifically to a thread tension synchronous adjustment device and an embroidery machine. Background Technology

[0002] Current embroidery machines use a thread presser mounted on the needle bar, with one presser for each thread. Each presser includes a pressing knob, and the thread first passes through its corresponding presser. The operator manually rotates the pressing knob to adjust the tension on the thread, thus regulating the thread tension. While this manual adjustment of thread tension addresses the issue to some extent, it has the following drawbacks.

[0003] The tension of the embroidery thread depends on manual adjustment by the operator. However, manual adjustment has problems such as low adjustment efficiency, poor consistency of thread tension adjustment, and inability to guarantee the quality of the embroidery. At the same time, it also has the problem of high labor costs.

[0004] On the other hand, with the development of embroidery machines, the number of machine heads on these machines has been continuously increasing. Current multi-station embroidery machines often have dozens or even hundreds of machine heads, arranged in a row. Each machine head includes a needle bar frame with a row of needles. Manually adjusting the tension of the embroidery thread using a thread presser is not only labor-intensive but also difficult to adapt to the production rhythm. Therefore, this method of manually adjusting the tension of the embroidery thread using a thread presser is increasingly unable to meet the needs of modern multi-station embroidery machines.

[0005] For example, Chinese Patent Publication No. CN201092608Y, entitled "Thread Pressing Device for Sewing Machine and Embroidery Machine", uses a manual thread presser to manually adjust the tension of the embroidery thread, which also has the above-mentioned shortcomings. Utility Model Content

[0006] The purpose of this invention is to provide a thread tension synchronous adjustment device and embroidery machine that can automatically adjust the tension of the embroidery thread as needed, effectively improve the accuracy and consistency of the thread tension adjustment, thereby improving the quality of embroidery and reducing labor costs.

[0007] The technical solution of this utility model is:

[0008] A thread tension synchronous adjustment device for use in an embroidery machine includes a support frame and at least one thread tension adjustment unit disposed on the support frame. The thread tension adjustment unit includes:

[0009] The pressure line surface is fixedly installed on the bracket;

[0010] Several dynamic pressure plates arranged side by side;

[0011] An electromagnet, fixedly mounted on a bracket, causes the moving pressure plates of the thread tension adjustment unit to be attracted to the stationary pressure plate surface under the magnetic attraction of the electromagnet when energized, thus pressing the embroidery thread of the embroidery machine between the moving pressure plates and the stationary pressure plate surface. The specific operation of the thread tension synchronization adjustment device in this scheme is as follows:

[0012] By energizing an electromagnet, the moving pressure plates of the corresponding thread tension adjustment unit are attracted to the corresponding stationary pressure plate surface under the magnetic attraction of the electromagnet. Then, by adjusting the magnitude of the current, the magnetic force exerted by the electromagnet on the moving pressure plates is automatically and accurately adjusted, thereby automatically and accurately adjusting the clamping force between the stationary pressure plate surface and the moving pressure plate, and thus automatically adjusting the tension of the embroidery thread. Therefore, the thread tension synchronous adjustment device of this solution can automatically adjust the clamping force of the embroidery thread as needed, effectively improving the accuracy and consistency of thread tension adjustment, thereby improving the quality of the embroidery. Furthermore, it eliminates the need for manual adjustment of the thread tension, thus adapting well to the usage requirements and production rhythm of current multi-station embroidery machines, and reducing labor costs.

[0013] At the same time, by simply energizing the electromagnet and adjusting the current, the pressing force of each moving pressure plate of the thread tension adjustment unit on the embroidery thread can be simultaneously adjusted. Its structure is simple and its manufacturing cost is low.

[0014] Preferably, the tension adjustment unit also includes a mounting bracket, which is mounted on a support, and the dynamic pressure plates are movably mounted on the mounting bracket. This facilitates the installation and replacement of each dynamic pressure plate in the tension adjustment unit.

[0015] Preferably, the tension adjustment unit further includes several sliding guide rods corresponding one-to-one with the dynamic pressure plate. The sliding guide rods are slidably mounted on the mounting frame, and the dynamic pressure plate is fixed on the corresponding sliding guide rod. This ensures that the dynamic pressure plate can move smoothly and stably.

[0016] Preferably, the mounting bracket is detachably attached to the support frame via magnetic attachment, and the support frame and mounting bracket are positioned together by a positioning structure. This facilitates the installation and replacement of the mounting bracket.

[0017] Preferably, the mounting bracket is detachably connected to the support frame by bolts or clips. This facilitates the installation and replacement of the mounting bracket.

[0018] Preferably, the wire tension adjustment unit also includes elastic elements corresponding to the moving pressure wire pieces, which are pre-pressed onto the fixed pressure wire surface under the action of the corresponding elastic elements. In practical applications, if the moving pressure wire piece is too far from the fixed pressure wire surface (i.e., a large distance from the electromagnet, for example, 3-5 mm) when the electromagnet is de-energized, it may prevent the moving pressure wire piece from being magnetically attracted to the fixed pressure wire surface when the electromagnet is energized, causing the wire tension adjustment unit to malfunction. To solve this problem, this solution improves the wire tension adjustment unit, specifically...

[0019] When the electromagnet is de-energized, the dynamic pressure plate can be pre-pressed onto the constant pressure plate surface by the elastic element. In this way, when the electromagnet is energized, each dynamic pressure plate of the corresponding tension adjustment unit can be attracted to the corresponding constant pressure plate surface under the magnetic attraction of the electromagnet. This effectively solves the problem that when the electromagnet is de-energized, the dynamic pressure plate is too far away from the constant pressure plate surface, and when the electromagnet is energized, the dynamic pressure plate cannot be attracted to the constant pressure plate surface by the magnetic attraction, which leads to the failure of the tension adjustment unit.

[0020] Preferably, there are two thread tension adjustment units, one above the other, arranged vertically. The same embroidery thread in the embroidery machine passes sequentially between the corresponding dynamic pressure plate and the fixed pressure plate in the two thread tension adjustment units. In actual operation, different working modes can be selected as needed. For example, the tension of the embroidery thread can be adjusted by energizing the electromagnets of one or both thread tension adjustment units simultaneously; or the tension of the embroidery thread can be adjusted by energizing the electromagnets of both thread tension adjustment units simultaneously.

[0021] Preferably, it also includes an electric thread take-up spring for tightening the embroidery thread, the electric thread take-up spring comprising:

[0022] The thread take-up lever has several thread take-up hooks arranged in sequence. The thread take-up hooks are located between two thread tension adjustment units. Each thread take-up hook corresponds to one embroidery thread. The embroidery thread of the embroidery machine passes around the corresponding thread take-up hook.

[0023] A thread-taking motor mounted on the support drives the thread-taking lever to swing. This solution uses an electric thread-taking spring instead of the mechanical thread-taking spring in traditional embroidery machines. The electric spring can drive the thread-taking hook to rotate at different angles, thereby adjusting the tension of the thread-taking hook on the embroidery thread. Based on this, the electronic thread-taking spring can adjust its tension according to the needs of different embroidery threads to adapt to different thread requirements.

[0024] Preferably, it also includes an electric thread take-up spring for tightening the embroidery thread, the electric thread take-up spring comprising:

[0025] The thread take-up lever has several thread take-up hooks arranged in sequence. Each thread take-up hook corresponds to one embroidery thread. The embroidery thread of the embroidery machine passes around the corresponding thread take-up hook.

[0026] A thread-taking motor mounted on the support drives the thread-taking lever to swing. This solution uses an electric thread-taking spring instead of the mechanical thread-taking spring in traditional embroidery machines. The electric spring can drive the thread-taking hook to rotate at different angles, thereby adjusting the tension of the thread-taking hook on the embroidery thread. Based on this, the electronic thread-taking spring can adjust its tension according to the needs of different embroidery threads to adapt to different thread requirements.

[0027] On the other hand, this solution uses a single thread take-up motor to drive the thread take-up hooks of the thread take-up lever to rotate synchronously, thereby adjusting the tension of the thread take-up hooks on the embroidery thread. This can effectively reduce the number of thread take-up motors and simplify the control program of the thread take-up motors, thereby reducing costs.

[0028] Preferably, the thread tension synchronization adjustment device is installed on the head of the embroidery machine, and the dynamic pressure plate in the same thread tension adjustment unit of the thread tension synchronization adjustment device corresponds one-to-one with the embroidery thread in the head.

[0029] Preferably, the bracket is mounted on the needle bar holder of the machine head or on the frame of the machine head.

[0030] An embroidery machine, including a thread tension synchronization adjustment device applied in the embroidery machine.

[0031] The beneficial effects of this utility model are: it can automatically adjust the tension of the embroidery thread as needed, effectively improving the accuracy and consistency of the tension adjustment, thereby improving the quality of the embroidery and reducing labor costs. Attached Figure Description

[0032] Figure 1 This is a schematic diagram of the structure of a thread tension synchronous adjustment device applied in an embroidery machine from a certain angle before assembly.

[0033] Figure 2 This is a schematic diagram of the structure of a thread tension synchronous adjustment device applied in an embroidery machine, presented from another perspective before assembly.

[0034] Figure 3 This is a front view of a thread tension synchronous adjustment device applied in an embroidery machine after assembly, according to this utility model.

[0035] Figure 4 This is a cross-sectional structural diagram of a thread tension synchronous adjustment device applied in an embroidery machine after assembly.

[0036] Figure 5 This is a schematic diagram of the structure of a thread tension synchronous adjustment device for use in embroidery machines, applied to the needle bar frame of the embroidery machine.

[0037] In the picture:

[0038] Bracket 1;

[0039] Line tension adjustment unit 2, dynamic pressure line piece 2.0, constant pressure line surface 2.1, electromagnet 2.2, mounting bracket 2.3, positioning groove 2.4, elastic element 2.5, sliding guide rod 2.6;

[0040] 3. Electric line-taking spring, 3.1 line-taking hook, 3.2 line-taking rod, 3.3 line-taking motor;

[0041] Embroidery thread 4;

[0042] Needle bar holder 5. Detailed Implementation

[0043] Specific Implementation Example 1, such as Figures 1-4 As shown, a thread tension synchronous adjustment device applied in an embroidery machine includes a support 1 and at least one thread tension adjustment unit 2 disposed on the support 1. For example, there may be one or two thread tension adjustment units 2. In this embodiment, there are two thread tension adjustment units 2, and the two thread tension adjustment units 2 are distributed vertically.

[0044] The thread tension adjustment unit 2 includes a constant pressure thread surface 2.1 fixedly mounted on the support 1, an electromagnet 2.2 fixedly mounted on the support 1, and several moving pressure thread pieces 2.0 arranged side by side. In this embodiment, the arrangement direction of each moving pressure thread piece 2.0 in the thread tension adjustment unit 2 is parallel to the arrangement direction of each embroidery thread 4 on the machine head of the embroidery machine.

[0045] When the electromagnet 2.2 is energized, each dynamic pressure plate 2.0 of the corresponding thread tension adjustment unit 2 is attracted to the corresponding constant pressure surface 2.1 under the magnetic attraction of the electromagnet 2.2, so that the embroidery thread 4 of the embroidery machine is pressed between the dynamic pressure plate 2.0 and the constant pressure surface 2.1. The specific operation of the thread tension synchronization adjustment device in this embodiment is as follows:

[0046] When electromagnet 2.2 is energized, the moving pressure plates 2.0 of the corresponding thread tension adjustment unit 2 are attracted to the corresponding fixed pressure surface 2.1 by the magnetic attraction of electromagnet 2.2. Then, by adjusting the current, the magnetic attraction force of electromagnet 2.2 on the moving pressure plates 2.0 is automatically and accurately adjusted, thereby automatically and accurately adjusting the clamping force between the fixed pressure surface 2.1 and the moving pressure plates 2.0 to automatically adjust the tension of the embroidery thread 4. Therefore, the thread tension synchronous adjustment device of this solution can automatically adjust the clamping force of the embroidery thread 4 as needed, effectively improving the accuracy and consistency of the tension adjustment of the embroidery thread 4, thereby improving the quality of the embroidery; and it eliminates the need for manual adjustment of the tension of the embroidery thread 4, thus adapting well to the usage requirements and production rhythm of current multi-station embroidery machines and reducing labor costs.

[0047] Meanwhile, by simply energizing the electromagnet 2.2 and adjusting the current, the pressing force of each moving pressure plate 2.0 of the thread tension adjustment unit 2 on the embroidery thread 4 can be simultaneously adjusted. Its structure is simple and its manufacturing cost is low.

[0048] Specific embodiment two, as follows Figures 1-5 As shown, a thread tension synchronous adjustment device applied in an embroidery machine includes a support 1 and at least one thread tension adjustment unit 2 disposed on the support 1. For example, there may be one or two thread tension adjustment units 2. In this embodiment, there are two thread tension adjustment units 2, and the two thread tension adjustment units 2 are distributed vertically.

[0049] The thread tension adjustment unit 2 includes a constant pressure thread surface 2.1 fixedly mounted on the support 1, an electromagnet 2.2 fixedly mounted on the support 1, and several moving pressure thread pieces 2.0 arranged side by side. In this embodiment, the arrangement direction of each moving pressure thread piece 2.0 in the thread tension adjustment unit 2 is parallel to the arrangement direction of each embroidery thread 4 on the machine head of the embroidery machine.

[0050] When the electromagnet 2.2 is energized, each of the dynamic pressure plates 2.0 of the corresponding tension adjustment unit 2 is attracted to the corresponding constant pressure surface 2.1 under the magnetic attraction of the electromagnet 2.2, so that the embroidery thread 4 of the embroidery machine is pressed between the dynamic pressure plate 2.0 and the constant pressure surface 2.1.

[0051] In this embodiment, the thread tension synchronization adjustment device is installed on the head of the embroidery machine. The dynamic pressure plate 2.0 in the same thread tension adjustment unit 2 of the thread tension synchronization adjustment device corresponds one-to-one with the embroidery thread 4 in the head. The same embroidery thread 4 of the embroidery machine passes sequentially between the corresponding dynamic pressure plate 2.0 and the fixed pressure plate 2.1 in the upper and lower thread tension adjustment units 2.

[0052] In practical applications, each thread tension synchronization adjustment device corresponds to one machine head. For example, each machine head in an embroidery machine is equipped with one thread tension synchronization adjustment device. Alternatively, the thread tension synchronization adjustment device of this embodiment can be applied to only a portion of the machine heads in an embroidery machine.

[0053] The specific operation of the line tension synchronization adjustment device in this embodiment is as follows.

[0054] When electromagnet 2.2 is energized, the moving pressure plates 2.0 of the corresponding thread tension adjustment unit 2 are attracted to the corresponding fixed pressure surface 2.1 by the magnetic attraction of electromagnet 2.2. Then, by adjusting the current, the magnetic attraction force of electromagnet 2.2 on the moving pressure plates 2.0 is automatically and accurately adjusted, thereby automatically and accurately adjusting the clamping force between the fixed pressure surface 2.1 and the moving pressure plates 2.0 to automatically adjust the tension of the embroidery thread 4. Therefore, the thread tension synchronous adjustment device of this solution can automatically adjust the clamping force of the embroidery thread 4 as needed, effectively improving the accuracy and consistency of the tension adjustment of the embroidery thread 4, thereby improving the quality of the embroidery; and it eliminates the need for manual adjustment of the tension of the embroidery thread 4, thus adapting well to the usage requirements and production rhythm of current multi-station embroidery machines and reducing labor costs.

[0055] Meanwhile, by simply energizing the electromagnet 2.2 and adjusting the current, the pressing force of each moving pressure plate 2.0 of the thread tension adjustment unit 2 on the embroidery thread 4 can be simultaneously adjusted. Its structure is simple and its manufacturing cost is low.

[0056] On the other hand, in actual work, different working modes can be selected as needed. For example, the tension of the embroidery thread 4 can be adjusted by energizing one of the electromagnets 2.2 in the upper and lower tension adjustment units 2; or the tension of the embroidery thread 4 can be adjusted by energizing the electromagnets 2.2 in the upper and lower tension adjustment units 2 at the same time.

[0057] In this embodiment, the thread tension synchronization adjustment device is installed on the head of the embroidery machine in the following ways:

[0058] In one implementation, such as Figure 5 As shown, the bracket 1 is mounted on the needle bar frame 5 of the machine head. For example, the bracket 1 is fixed to the needle bar frame 5 by bolts, riveting, or welding, thereby mounting the thread tension synchronization adjustment device on the machine head of the embroidery machine. In this way, the thread tension synchronization adjustment device can move synchronously with the needle bar frame 5.

[0059] In another embodiment, the bracket 1 is mounted on the frame of the machine head (not shown in the figure). For example, the bracket 1 is fixed to the frame by bolts, riveting, or welding, thereby fixing the thread tension synchronization adjustment device to the machine head of the embroidery machine. Alternatively, the bracket 1 is slidably mounted on the frame and is driven to move synchronously with the needle bar frame 5 by an existing translation drive mechanism (e.g., a linear module).

[0060] In this embodiment, the constant pressure line surface 2.1 is formed in the following manner:

[0061] In one example, the electromagnet 2.2 includes a housing with one side facing the moving pressure plate 2.0. The side of the housing facing the moving pressure plate 2.0 forms the constant pressure plate surface 2.1. The constant pressure plate surface 2.1 is parallel to the arrangement direction of the moving pressure plate 2.0.

[0062] In another example, the support 1 is provided with a constant pressure plate, and the electromagnet 2.2 is disposed on the side of the constant pressure plate facing away from the moving pressure plate 2.0. The side of the constant pressure plate facing the moving pressure plate 2.0 constitutes the constant pressure surface 2.1.

[0063] Furthermore, such as Figure 4 As shown, the wire tension adjustment unit 2 also includes several elastic elements 2.5 corresponding one-to-one with the dynamic pressure plate 2.0. The elastic element 2.5 is a spring or an elastic sheet. In this embodiment, the elastic element 2.5 is a spring. The dynamic pressure plate 2.0 is pre-pressed onto the constant pressure surface 2.1 under the action of the corresponding elastic element 2.5. In practical applications, when the electromagnet 2.2 is de-energized, if the distance between the dynamic pressure plate 2.0 and the constant pressure surface 2.1 is large (i.e., a large distance from the electromagnet 2.2, for example, 3-5 mm), it may cause the dynamic pressure plate 2.0 to fail to be magnetically attracted to the constant pressure surface 2.1 when the electromagnet 2.2 is energized, resulting in the failure of the wire tension adjustment unit 2. To solve this problem, this solution improves the wire tension adjustment unit 2. Specifically,

[0064] When the electromagnet 2.2 is de-energized, the dynamic pressure plate 2.0 can be pre-pressed onto the constant pressure plate surface 2.1 by the elastic element 2.5. In this way, when the electromagnet 2.2 is energized, it can be ensured that each dynamic pressure plate 2.0 of the corresponding tension adjustment unit 2 is attracted to the corresponding constant pressure plate surface 2.1 under the magnetic attraction of the electromagnet 2.2. This effectively solves the problem that when the electromagnet 2.2 is de-energized, the dynamic pressure plate 2.0 is too far away from the constant pressure plate surface 2.1, and when the electromagnet 2.2 is energized, the dynamic pressure plate 2.0 cannot be attracted to the constant pressure plate surface 2.1 by magnetic attraction, which leads to the failure of the tension adjustment unit 2.

[0065] Furthermore, such as Figures 1-4 As shown, the wire tension adjustment unit 2 also includes a mounting bracket 2.3. The mounting bracket 2.3 is mounted on the bracket 1. The dynamic pressure plates 2.0 are movably mounted on the mounting bracket 2.3. This facilitates the installation and replacement of each dynamic pressure plate 2.0 of the wire tension adjustment unit 2.

[0066] In one implementation, such as Figure 4As shown, the tension adjustment unit 2 also includes several sliding guide rods 2.6 corresponding one-to-one with the dynamic pressure plate 2.0. The sliding guide rods 2.6 are slidably mounted on the mounting frame 2.3. The sliding direction of the sliding guide rods 2.6 is perpendicular to the constant pressure surface 2.1. The dynamic pressure plate 2.0 is fixed on the corresponding sliding guide rod 2.6. The dynamic pressure plate 2.0 and the constant pressure surface 2.1 are located on the same side of the mounting frame 2.3. A limiting member is provided on the sliding guide rod 2.6, and the limiting member and the dynamic pressure plate 2.0 are located on opposite sides of the mounting frame 2.3. In this embodiment, the limiting member is composed of a retaining ring, which is engaged in the annular groove of the sliding guide rod 2.6. Of course, the limiting member can also be a limiting block.

[0067] In this embodiment, the elastic element 2.5 is located between the mounting bracket 2.3 and the dynamic pressure plate 2.0. For example, the elastic element 2.5 is a spring, which is sleeved on the sliding guide rod 2.6 and located between the mounting bracket 2.3 and the dynamic pressure plate 2.0. The dynamic pressure plate 2.0 is pre-pressed onto the fixed pressure surface 2.1 under the action of the corresponding elastic element 2.5.

[0068] In another embodiment, the elastic element 2.5 is a spring, one end of which is connected to the mounting bracket 2.3, and the other end of which is connected to the dynamic pressure plate 2.0. The dynamic pressure plate 2.0 and the fixed pressure surface 2.1 are located on the same side of the mounting bracket 2.3. The dynamic pressure plate 2.0 is pre-pressed onto the fixed pressure surface 2.1 under the action of the corresponding elastic element 2.5.

[0069] In this embodiment, the mounting bracket 2.3 is connected to the bracket 1 in the following manner.

[0070] In one implementation, such as Figure 1 , Figure 2 , Figure 3 As shown, the mounting bracket 2.3 is detachably attached to the support 1 by magnetic attraction, and the support 1 and the mounting bracket 2.3 are positioned by a positioning structure. This facilitates the installation and replacement of the mounting bracket 2.3.

[0071] In one example, such as Figure 1 , Figure 2 , Figure 3 As shown, the positioning structure includes a positioning groove 2.4, which is disposed on the bracket 1, and the mounting bracket 2.3 is positioned within the positioning groove 2.4. The positioning groove 2.4 contains the magnetic suction element, and the mounting bracket 2.3 also contains a magnetic suction element.

[0072] In another example, the positioning structure includes a positioning hole and a positioning pin, one of which is disposed on the bracket 1 and the other on the mounting bracket 2.3. The mounting bracket 2.3 is provided with a magnetic attraction element, and the bracket 1 is also provided with a magnetic attraction element.

[0073] In another embodiment, the mounting bracket 2.3 is detachably connected to the bracket 1 by bolts or clips (not shown in the figure). This facilitates the installation and replacement of the mounting bracket 2.3.

[0074] In this specific embodiment, the remaining structure is the same as in specific embodiment two, except that...

[0075] like Figures 1-4 As shown, a thread tension synchronization adjustment device used in an embroidery machine also includes an electric thread take-up spring 3 for tightening the embroidery thread 4.

[0076] The electric thread take-up spring 3 includes a thread take-up lever 3.2 and a thread take-up motor 3.3 mounted on the bracket 1. The thread take-up lever 3.2 has several thread take-up hooks 3.1 arranged sequentially. In this embodiment, the thread take-up lever 3.2 extends along the arrangement direction of each dynamic pressure plate 2.0 in the thread tension adjustment unit 2, and the arrangement direction of each thread take-up hook 3.1 is parallel to the arrangement direction of each dynamic pressure plate 2.0 in the thread tension adjustment unit 2. In this embodiment, the thread take-up hook 3.1 is located between two thread tension adjustment units 2. Each thread take-up hook 3.1 corresponds to one embroidery thread 4, and the embroidery thread 4 of the embroidery machine passes around the corresponding thread take-up hook 3.1. In this embodiment, the thread take-up hook 3.1 corresponds one-to-one with the embroidery thread 4 on the machine head.

[0077] The thread take-up motor 3.3 drives the thread take-up lever 3.2 to swing, thereby causing each thread take-up hook 3.1 to swing synchronously to tighten the embroidery thread 4. In this embodiment, the thread take-up lever 3.2 is also provided with a connecting rod, which is connected to the output shaft of the thread take-up motor 3.3. The connecting rod extends radially along the output shaft, and the thread take-up lever 3.2 is parallel to the output shaft.

[0078] In this embodiment, an electric take-up spring 3 is used instead of the mechanical take-up spring in a traditional embroidery machine. The take-up spring 3 can drive the take-up hook 3.1 to rotate at different angles through the take-up motor 3.3, thereby adjusting the tightening force of the take-up hook 3.1 on the embroidery thread 4. Based on this, the electronic take-up spring can adjust the tightening force of the electronic take-up spring according to the needs of different embroidery threads 4, so as to adapt to the needs of different embroidery threads 4.

[0079] On the other hand, this solution uses the same thread take-up motor 3.3 to drive the thread take-up hooks 3.1 of the thread take-up lever 3.2 to rotate synchronously, thereby adjusting the tightening force of the thread take-up hooks 3.1 on the embroidery thread 4. This can effectively reduce the number of thread take-up motors 3.3 and simplify the control program of the thread take-up motors 3.3, thereby reducing costs.

[0080] Specific embodiment four: an embroidery machine, including a thread tension synchronization adjustment device applied in the embroidery machine. The specific structure of the thread tension synchronization adjustment device is as described in specific embodiment one, two, or three.

[0081] The above description is merely a preferred embodiment of the present utility model and does not constitute any limitation on the present utility model. Any simple modifications, alterations, or equivalent transformations made to the above embodiments based on the technical essence of the present utility model shall still fall within the protection scope of the present utility model.

Claims

1. A thread tension synchronous adjustment device applied in an embroidery machine, characterized in that, Includes a support frame and at least one line tension adjustment unit disposed on the support frame, the line tension adjustment unit comprising: The pressure line surface is fixedly installed on the bracket; Several dynamic pressure plates arranged side by side; An electromagnet is fixedly mounted on a bracket; when the electromagnet is energized, each dynamic pressure plate of the tension adjustment unit is attracted to the fixed pressure plate surface under the magnetic attraction of the electromagnet, so that the embroidery thread of the embroidery machine is pressed between the dynamic pressure plate and the fixed pressure plate surface.

2. The thread tension synchronous adjustment device applied in an embroidery machine according to claim 1, characterized in that, The line tension adjustment unit also includes a mounting bracket, which is mounted on a support, and the dynamic pressure plate is movably mounted on the mounting bracket.

3. The thread tension synchronous adjustment device applied in an embroidery machine according to claim 2, characterized in that, The line tension adjustment unit also includes several sliding guide rods that correspond one-to-one with the dynamic pressure line piece. The sliding guide rods are slidably mounted on the mounting frame, and the dynamic pressure line piece is fixed on the corresponding sliding guide rod.

4. A thread tension synchronous adjustment device applied in an embroidery machine according to claim 2 or 3, characterized in that, The mounting bracket is detachably attached to the support frame by magnetic attraction, and the support frame and the mounting bracket are positioned by a positioning structure.

5. A thread tension synchronous adjustment device applied in an embroidery machine according to claim 2 or 3, characterized in that, The mounting bracket is detachably connected to the support by bolts or clips.

6. A thread tension synchronous adjustment device applied in an embroidery machine according to claim 1, 2, or 3, characterized in that, The line tension adjustment unit also includes elastic elements that correspond one-to-one with the dynamic pressure line pieces. Under the action of the corresponding elastic elements, the dynamic pressure line pieces are pre-pressed onto the constant pressure line surface.

7. A thread tension synchronous adjustment device applied in an embroidery machine according to claim 1, 2, or 3, characterized in that, There are two line tension adjustment units, and the two line tension adjustment units are distributed vertically.

8. The thread tension synchronous adjustment device applied in an embroidery machine according to claim 7, characterized in that, It also includes an electric thread take-up spring for tightening the embroidery thread, the electric thread take-up spring comprising: The thread take-up lever has several thread take-up hooks arranged in sequence. The thread take-up hooks are located between two thread tension adjustment units. Each thread take-up hook corresponds to one embroidery thread. The embroidery thread of the embroidery machine passes around the corresponding thread take-up hook. A thread-lifting motor is mounted on a bracket, which drives the thread-lifting rod to swing.

9. A thread tension synchronous adjustment device applied in an embroidery machine according to claim 1, 2, or 3, characterized in that, It also includes an electric thread take-up spring for tightening the embroidery thread, the electric thread take-up spring comprising: The thread take-up lever has several thread take-up hooks arranged in sequence. Each thread take-up hook corresponds to one embroidery thread. The embroidery thread of the embroidery machine passes around the corresponding thread take-up hook. A thread-lifting motor is mounted on a bracket, which drives the thread-lifting rod to swing.

10. A thread tension synchronous adjustment device applied in an embroidery machine according to claim 1, 2, or 3, characterized in that, The thread tension synchronization adjustment device is installed on the head of the embroidery machine, and the dynamic pressure plate in the same thread tension adjustment unit of the thread tension synchronization adjustment device corresponds one-to-one with the embroidery thread in the head.

11. A thread tension synchronous adjustment device applied in an embroidery machine according to claim 10, characterized in that, The bracket is set on the needle bar holder of the machine head or on the machine frame of the machine head.

12. An embroidery machine, characterized in that, Includes a thread tension synchronization adjustment device applied in an embroidery machine as described in any one of claims 1-11.

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