Automatic thread tension adjusting device of embroidery machine

Abstract

The utility model discloses an automatic thread tension adjusting device of an embroidery machine, which is characterized in that a fixed bracket, a plurality of fixed wheels, a supporting seat, a movable wheel bracket, a plurality of movable wheels, a base, a driving component and a plurality of eccentric wheels are arranged in a matched manner, an embroidery thread is positioned between the fixed wheels and the movable wheels, and a tension sensor detects the tension value of the embroidery thread in real time; when the tension value of the embroidery thread exceeds or is lower than the preset threshold value, the driving assembly drives the eccentric wheel to rotate by the preset angle to adjust the distance between the fixed wheel and the movable wheel, so that the tension value of the embroidery thread is within the preset threshold value range, the embroidery machine does not need to stop when the tension of the embroidery thread is adjusted, the embroidery efficiency of the embroidery machine is improved, manual operation is not needed, and the production cost is reduced. And the dependence on the experience of a machine operator is avoided.

Description

Technical Field

[0001] This utility model relates to the technical field of embroidery machines, specifically to an automatic tension adjustment device for embroidery machine threads. Background Technology

[0002] An embroidery machine is an automated device used to embroider patterns onto fabrics. It is widely used in the clothing, home textiles, footwear, and handicrafts industries. Through automated technology, it embroiders designed patterns onto fabric, replacing traditional hand embroidery and significantly improving production efficiency and embroidery precision.

[0003] In embroidery, thread tension control is a crucial factor affecting the quality of the finished product. Traditional embroidery machines typically rely on manual adjustment of thread tension. Computerized embroidery machines usually maintain thread tension between 75g and 120g. Before embroidery, a tension meter is used to manually measure the thread tension, and the tension regulator is adjusted manually to keep the tension within the aforementioned range. During embroidery, if abnormalities occur due to unforeseen effects or quality, embroidery must be stopped, and the tension regulator adjusted accordingly. This reduces the efficiency of the embroidery machine and places high demands on the experience and skills of the machine operator. Utility Model Content

[0004] Therefore, it is necessary to provide an automatic thread tension adjustment device for embroidery machines. This can solve the problem of low embroidery efficiency caused by the inability to automatically adjust thread tension.

[0005] An automatic tension adjustment device for embroidery machine thread includes a fixed bracket, several fixed wheels, a support base, a movable wheel bracket, several movable wheels, a base, a drive assembly, and several eccentric wheels;

[0006] The drive assembly is mounted on the base, and the plurality of eccentric wheels are disposed on the drive assembly. The drive assembly is used to drive the plurality of eccentric wheels to rotate. The support base is detachably connected to the base. The movable wheel bracket passes through the support base in a vertical direction and its bottom abuts against the plurality of eccentric wheels. The plurality of movable wheels are rotatably disposed on the movable wheel bracket via a second drive shaft. One end of the fixed bracket is mounted on the support base. The plurality of fixed wheels are rotatably disposed on the fixed bracket via a third drive shaft and form a preset distance gap with the plurality of movable wheels.

[0007] In one embodiment, the drive assembly includes a drive motor, a drive wheel, a driven wheel, and a first transmission shaft. The drive motor is mounted on the base, the driven wheel is rotatably mounted on the base, the drive wheel is mounted on the drive motor and meshes with the driven wheel, both ends of the first transmission shaft are rotatably mounted on the base and one end is connected to the driven wheel, and a plurality of eccentric wheels are mounted on the first transmission shaft, which drives the plurality of eccentric wheels to rotate.

[0008] In one embodiment, the second drive shaft is a spring shaft.

[0009] In one embodiment, the support base has several guide posts on both sides, and several guide members are provided on the movable wheel bracket. The guide members are provided with guide holes, and the guide posts pass through the guide holes. When the movable wheel bracket moves in the vertical direction, the guide members slide along the guide posts.

[0010] In one embodiment, a buffer spring is fitted onto the guide post, and the buffer spring abuts against the support base and the guide member respectively.

[0011] In one embodiment, the movable wheel bracket has a support rod that abuts against the plurality of eccentric wheels.

[0012] In one embodiment, the support rod is snapped onto the movable wheel bracket.

[0013] In one embodiment, the automatic tension adjustment device for the embroidery machine thread further includes a display screen mounted on the fixed bracket for displaying the current tension value.

[0014] The aforementioned automatic tension adjustment device for embroidery machines, through the coordinated arrangement of a fixed bracket, several fixed wheels, a support base, a movable wheel bracket, several movable wheels, a base, a drive assembly, and several eccentric wheels, positions the embroidery thread between the fixed wheels and the movable wheels. A tension sensor detects the tension value of the embroidery thread in real time. When the tension value exceeds or falls below a preset threshold, the drive assembly rotates the eccentric wheels by a preset angle to adjust the distance between the fixed wheels and the movable wheels, thereby keeping the tension value of the embroidery thread within the preset threshold range. The embroidery machine does not need to be stopped during tension adjustment, improving embroidery efficiency and eliminating the need for manual operation, thus reducing reliance on the experience of machine operators. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the assembly structure of an automatic tension adjustment device for embroidery machine thread according to an embodiment of the present invention;

[0016] Figure 2 for Figure 1A schematic diagram of the drive assembly structure of an automatic tension adjustment device for embroidery machine thread according to an embodiment of this utility model;

[0017] Figure 3 for Figure 1 A schematic diagram of the fixed wheel, support base, movable wheel bracket, and assembly structure of a plurality of movable wheels of an automatic tension adjustment device for embroidery machine thread according to an embodiment of the present invention. Detailed Implementation

[0018] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0019] It should be noted that when a component is considered to be "connected" to another component, it can be directly connected to the other component or there may be an intermediary component present. Conversely, when a component is said to be "directly" connected to another component, there is no intermediary component.

[0020] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0021] like Figure 1 As shown, an automatic tension adjustment device for embroidery machine thread includes a fixed bracket 1, several fixed wheels 2, a support base 3, a movable wheel bracket 4, several movable wheels 5, a base 6, a drive assembly 7, and several eccentric wheels 8.

[0022] The drive assembly 7 is mounted on the base 6, and the plurality of eccentric wheels 8 are disposed on the drive assembly 7. The drive assembly 7 is used to drive the plurality of eccentric wheels 8 to rotate. The support base 3 is detachably connected to the base 6. The movable wheel bracket 4 passes through the support base 3 in a vertical direction and its bottom abuts against the plurality of eccentric wheels 8. The plurality of movable wheels 5 are rotatably disposed on the movable wheel bracket 4 through a second transmission shaft. One end of the fixed bracket 1 is mounted on the support base 3. The plurality of fixed wheels 2 are rotatably disposed on the fixed bracket 1 through a third transmission shaft 21 and form a preset distance gap with the plurality of movable wheels 5.

[0023] A preset gap exists between several fixed wheels 2 and several movable wheels 5. The embroidery thread moves between the fixed wheels 2 and the movable wheels 5. When the embroidery machine starts embroidering, a tension sensor detects the tension value of the embroidery thread in real time and sends it to the control module. The control module has a preset threshold range for the embroidery thread tension value. When the detected tension value is not within the preset threshold range, the control module sends a control signal to the drive component 7. The drive component 7 controls the eccentric wheel 8 to rotate at a preset angle. Because the eccentric wheel 8 abuts against the movable wheel bracket 4, it pushes the movable wheel bracket 4 to move the movable wheel 5 closer to or away from the fixed wheels 2. If the embroidery thread tension is too tight, the movable wheel 5 is adjusted to move away from the fixed wheels 2; if the embroidery thread tension is too loose, the movable wheel 5 is adjusted to move closer to the fixed wheels 2, so that the tension value of the embroidery thread is within the preset threshold range, ensuring the quality of the embroidered product.

[0024] In this way, the automatic tension adjustment device for embroidery machine thread, through the coordinated arrangement of fixed bracket 1, several fixed wheels 2, support base 3, movable wheel bracket 4, several movable wheels 5, base 6, drive component 7, and several eccentric wheels 8, ensures that the embroidery thread is positioned between the fixed wheels 2 and the movable wheels 5. The tension sensor detects the tension value of the embroidery thread in real time. When the tension value of the embroidery thread exceeds or falls below a preset threshold, the drive component 7 drives the eccentric wheels 8 to rotate at a preset angle to adjust the distance between the fixed wheels 2 and the movable wheels 5, thereby keeping the tension value of the embroidery thread within the preset threshold range. The embroidery machine does not need to be stopped when adjusting the embroidery thread tension, which improves the embroidery efficiency of the embroidery machine and eliminates the need for manual operation, freeing it from dependence on the experience of the machine operator.

[0025] like Figure 2 As shown, in one embodiment, the drive assembly 7 includes a drive motor 71, a drive wheel 72, a driven wheel 73, and a first transmission shaft 74. The drive motor 71 is mounted on the base 6, the driven wheel 73 is rotatably mounted on the base 6, the drive wheel 72 is mounted on the drive motor 71 and meshes with the driven wheel 73, both ends of the first transmission shaft 74 are rotatably mounted on the base 6 and one end is connected to the driven wheel 72, and a plurality of eccentric wheels 8 are mounted on the first transmission shaft 74, the first transmission shaft 74 being used to drive the plurality of eccentric wheels 8 to rotate.

[0026] Thus, when the drive assembly 7 receives the control signal, it starts the drive motor 71, which drives the drive wheel 72 to rotate, the drive wheel 72 drives the driven wheel 73 to rotate, the driven wheel 73 drives the first transmission shaft 74 to rotate, and the first transmission shaft 74 drives several eccentric wheels 8 to rotate.

[0027] In one embodiment, the second drive shaft is a spring shaft.

[0028] In this way, the second drive shaft is mounted on several movable wheels 5. When several eccentric wheels 8 push the movable wheel bracket 4 to move towards the fixed wheel 2, the movable wheel bracket 4 drives the second drive shaft to move towards the fixed wheel 2. Because the second drive shaft is a spring shaft, the movable wheel bracket 4 first lifts the spring shaft that is in contact with the second drive shaft, and then pulls away the spring shaft that is in contact with the movable wheel 5. This prevents the movable wheel 5 from being lifted up as soon as the eccentric wheel 8 pushes the movable wheel bracket 4, making the adjustment of the distance between the fixed wheel 2 and the movable wheel 5 more precise. Fine adjustments can be made to the distance between the fixed wheel 2 and the movable wheel 5.

[0029] like Figure 3 As shown, in one embodiment, the support base 3 has several guide posts 31 on both sides, and the movable wheel bracket 4 has several guide members 41. The guide members 41 have guide holes 411, and the guide posts 31 pass through the guide holes 411. When the movable wheel bracket 4 moves in the vertical direction, the guide members 41 slide along the guide posts 31. A buffer spring is sleeved on the guide post 31, and the buffer spring abuts against the support base 3 and the guide members 31 respectively.

[0030] In this way, by setting up the buffer spring, a certain buffering effect can be achieved when the eccentric wheel 8 pushes the movable wheel bracket 4 to move towards the fixed wheel 2, so as to avoid the fixed wheel 2 being pushed quickly towards the movable wheel 5 by the movable wheel bracket 4, resulting in the distance between the fixed wheel 2 and the movable wheel 5 being too close.

[0031] In one embodiment, the movable wheel bracket 4 has a support rod 42, which abuts against the plurality of eccentric wheels 8, and the support rod 42 is engaged with the movable wheel bracket 4.

[0032] Thus, by setting the support rod 42, when the eccentric wheel 8 needs to push the movable wheel bracket 4, the support rod 42 is pushed first, and then the eccentric wheel 8 is pushed through the support rod 42.

[0033] In one embodiment, the automatic tension adjustment device for the embroidery machine thread further includes a display screen 9, which is mounted on the fixed bracket 1 and is used to display the current tension value.

[0034] In this way, the tension sensor detects the tension value of the embroidery thread in real time and sends it to the control module. The control module displays the tension value on the display screen 9, which allows the operator to obtain the current tension value of the embroidery thread more intuitively.

[0035] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. An automatic thread tension regulating device for an embroidery machine, characterized by: It includes a fixed bracket, several fixed wheels, a support base, a movable wheel bracket, several movable wheels, a base, a drive assembly, and several eccentric wheels; The drive assembly is mounted on the base, and the plurality of eccentric wheels are disposed on the drive assembly. The drive assembly is used to drive the plurality of eccentric wheels to rotate. The support base is detachably connected to the base. The movable wheel bracket passes through the support base in a vertical direction and its bottom abuts against the plurality of eccentric wheels. The plurality of movable wheels are rotatably disposed on the movable wheel bracket via a second drive shaft. One end of the fixed bracket is mounted on the support base. The plurality of fixed wheels are rotatably disposed on the fixed bracket via a third drive shaft and form a preset distance gap with the plurality of movable wheels.

2. The automatic tension adjustment device for embroidery machine thread according to claim 1, characterized in that: The drive assembly includes a drive motor, a drive wheel, a driven wheel, and a first transmission shaft. The drive motor is mounted on the base, the driven wheel is rotatably mounted on the base, the drive wheel is mounted on the drive motor and meshes with the driven wheel, both ends of the first transmission shaft are rotatably mounted on the base and one end is connected to the driven wheel, and a plurality of eccentric wheels are mounted on the first transmission shaft. The first transmission shaft is used to drive the plurality of eccentric wheels to rotate.

3. The automatic tension adjustment device for embroidery machine thread according to claim 1, characterized in that: The second drive shaft is a spring shaft.

4. The automatic tension adjustment device for embroidery machine thread according to claim 1, characterized in that: The support base has several guide posts on both sides, and several guide members are provided on the movable wheel bracket. The guide members are provided with guide holes, and the guide posts pass through the guide holes. When the movable wheel bracket moves in the vertical direction, the guide members slide along the guide posts.

5. The automatic tension adjustment device for embroidery machine thread according to claim 4, characterized in that: A buffer spring is fitted on the guide post, and the buffer spring abuts against the support base and the guide member respectively.

6. The automatic tension adjustment device for embroidery machine thread according to claim 1, characterized in that: The movable wheel bracket has a support rod, which abuts against the plurality of eccentric wheels.

7. The automatic tension adjustment device for embroidery machine thread according to claim 6, characterized in that: The support rod is snapped into the movable wheel bracket.

8. The automatic tension adjustment device for embroidery machine thread according to claim 1, characterized in that: The automatic tension adjustment device for the embroidery machine thread also includes a display screen, which is mounted on the fixed bracket and is used to display the current tension value.

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