A device for collecting thread tension of an embroidery machine

By using a tension acquisition device to detect and automatically adjust the tension of the embroidery thread in real time, the problem of embroidery quality caused by abnormal tension of the thread in the embroidery machine is solved, and the skill requirements of the operators are reduced.

CN224363017UActive Publication Date: 2026-06-16HUI ZHOU SHENTIAN PRECISION MACHINES

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HUI ZHOU SHENTIAN PRECISION MACHINES
Filing Date
2025-07-08
Publication Date
2026-06-16

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    Figure CN224363017U_ABST
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Abstract

The utility model discloses embroidery machine surface thread tension acquisition device passes through the cooperation setting of small single hook mounting seat, a plurality of small single hook, thread tension induction axle mounting support, thread tension induction axle subassembly, pressure sensor subassembly, when carrying out embroidery, surface thread always abuts with the top surface of thread tension induction axle subassembly, then surface thread tension is conducted to pressure sensor subassembly through thread tension induction axle subassembly, and surface thread tension is sent to control module after pressure sensor subassembly detection, and control module judges whether surface thread tension has the exception, if surface thread tension is unusual, control module sends control signal to relevant equipment and carries out surface thread tension adjustment, guarantees surface thread tension to be in normal interval, through pressure sensor subassembly real -time detection surface thread tension value, and then through control module judges whether surface thread tension value is unusual, avoids appearing the situation of missing judgment, guarantees surface thread tension value always to be in normal interval, guarantees the quality of embroidery, and the quality requirement of machine operator experience etc. is lower.
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Description

Technical Field

[0001] This utility model relates to the technical field of embroidery machines, specifically to an embroidery machine thread tension acquisition device. Background Technology

[0002] An embroidery machine is an automated device used to embroider patterns on fabrics, widely used in the clothing, home textiles, footwear, and handicrafts industries. During operation, the stability of the thread tension directly affects the quality of the embroidery. Excessive tension can lead to thread breakage or fabric shrinkage; insufficient tension can cause loose stitches and skipped stitches. Therefore, accurately measuring and adjusting the thread tension is crucial for the stable operation of the embroidery machine.

[0003] Currently, the tension of the thread in computerized embroidery machines is typically controlled between 75g and 120g. Before embroidery, a tension meter is used to manually measure the tension, and the operator manually adjusts the tension regulator to maintain the thread tension within the range of approximately 75g to 120g. During embroidery, experienced operators need to be able to promptly detect abnormal thread tension and manually adjust the tension regulator accordingly. This requires a high level of experience and skill from the machine operator. Failure to detect abnormal thread tension can significantly impact the quality of the embroidery. Utility Model Content

[0004] Therefore, it is necessary to provide a thread tension acquisition device for embroidery machines. This can solve the problem in existing technologies where abnormal thread tension cannot be detected in time during the embroidery process, leading to a decline in embroidery quality.

[0005] A thread tension acquisition device for an embroidery machine includes a base, a small single hook mounting base, several small single hooks, a thread tension sensing shaft mounting bracket, a thread tension sensing shaft assembly, and a pressure sensor assembly.

[0006] The small single hook mounting base is mounted on the base. The several small single hooks are equidistantly arranged at both ends of the small single hook mounting base. The pressure sensor assembly is mounted at both ends of the base. There are two line tension sensing shaft mounting brackets, symmetrically arranged on the pressure sensor assembly and located at both ends of the small single hook mounting base. The two ends of the line tension sensing shaft assembly are movably mounted on the line tension sensing shaft mounting bracket. The two ends of the surface line are arranged on the two sets of small single hooks arranged opposite each other and abut against the top surface of the line tension sensing shaft assembly. The line tension sensing shaft assembly is used to transmit the surface line tension to the pressure sensor assembly.

[0007] In one embodiment, the small single hook mounting base is provided with several U-shaped grooves symmetrically at both ends, and the several U-shaped grooves are used to install several small single hooks.

[0008] In one embodiment, the linear tension sensing shaft mounting bracket has a waist-shaped hole.

[0009] In one embodiment, the line tension sensing shaft assembly includes two mounting bases and a line tension sensing shaft, the two ends of which are fixedly or detachably mounted on the two mounting bases; the mounting bases have protrusions that are embedded in the waist-shaped holes and can slide along the waist-shaped holes in the vertical direction.

[0010] In one embodiment, the width of the bump is adapted to the width of the waist-shaped hole.

[0011] In one embodiment, the pressure sensor assembly includes a mounting base and a pressure sensor, the mounting base being mounted on a base, and the pressure sensor being mounted on the mounting base and abutting against the bottom of the linear tension sensing shaft mounting bracket.

[0012] In one embodiment, the mounting base has an "L" shaped structure.

[0013] In one embodiment, the embroidery machine thread tension acquisition device further includes a pad, which is installed between the base and the small single hook mounting seat.

[0014] The aforementioned embroidery machine thread tension acquisition device, through the coordinated arrangement of a small single hook mounting base, several small single hooks, a thread tension sensing shaft mounting bracket, a thread tension sensing shaft assembly, and a pressure sensor assembly, ensures that during embroidery, the thread is always in contact with the top surface of the thread tension sensing shaft assembly. The thread tension is then transmitted to the pressure sensor assembly, which detects the tension and sends it to the control module. The control module determines if the thread tension is abnormal. If abnormal, it sends a control signal to the relevant equipment to adjust the thread tension, ensuring it remains within the normal range. By using the pressure sensor assembly to monitor the thread tension value in real time, and then using the control module to determine if the value is abnormal, the device avoids missed detections, ensuring the thread tension value remains within the normal range, thus guaranteeing embroidery quality. Furthermore, it requires relatively low experience or skill levels from the machine operator. Attached Figure Description

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

[0016] Figure 2 for Figure 1 An enlarged structural diagram of part A of the embroidery machine thread tension acquisition device according to an embodiment of this utility model. Detailed Implementation

[0017] 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.

[0018] 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.

[0019] 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.

[0020] like Figure 1 and Figure 2 As shown, an embroidery machine thread tension acquisition device includes a base 1, a small single hook mounting base 2, several small single hooks 3, a thread tension sensing shaft mounting bracket 4, a thread tension sensing shaft assembly 5, and a pressure sensor assembly 6.

[0021] The small single hook mounting base 2 is mounted on the base 1. The several small single hooks 3 are equidistantly arranged at both ends of the small single hook mounting base 2. The pressure sensor assembly 6 is mounted on both ends of the base 1. There are two line tension sensing shaft mounting brackets 4, which are symmetrically arranged on the pressure sensor assembly 6 and located at both ends of the small single hook mounting base 2. The two ends of the line tension sensing shaft assembly 5 are movably arranged on the line tension sensing shaft mounting bracket 4. The two ends of the surface line are arranged on the two sets of small single hooks 3 arranged opposite each other and abut against the top surface of the line tension sensing shaft assembly 5. The line tension sensing shaft assembly 5 is used to transmit the surface line tension to the pressure sensor assembly 6.

[0022] Several U-shaped grooves 21 are symmetrically arranged at both ends of the small single hook mounting base 2. The several U-shaped grooves 21 are used to install several small single hooks 3. The small single hooks 3 are arranged in pairs opposite each other to guide the face line. The same face line passes through two corresponding small single hooks 3 in sequence. During the process of passing from one small single hook 3 to another small single hook 3, the face line is sleeved on the line tension sensing shaft 52 of the line tension sensing shaft assembly 5 and abuts against the top surface of the line tension sensing shaft 52. However, the face line only passes through the line tension sensing shaft 52. The line tension sensing shaft 52 can transmit the tension of the face line.

[0023] The tension sensing shaft mounting bracket 4 has an oblong hole 41. The tension sensing shaft assembly 5 includes two mounting seats 51 and a tension sensing shaft 52. Both ends of the tension sensing shaft 52 are fixedly or detachably mounted on the two mounting seats 51. Each mounting seat 51 has a protrusion 511, which is embedded in the oblong hole 41 and can slide vertically along the oblong hole 41. The width of the protrusion 511 is adapted to the width of the oblong hole 41. One end of the protrusion 511 of the tension sensing shaft 52 is connected to an external device. The external device can adjust the tension sensing shaft 52 to move vertically along the oblong hole 41, which can be used to adjust the tension of the surface thread. For example, if the tension of the thread exceeds the first preset threshold, the tension sensing shaft 52 is adjusted by an external device to move along the waist-shaped hole 41 toward the small single hook mounting base 2, so that the tension of the thread decreases; if the tension of the thread is less than the second preset threshold, the tension sensing shaft 52 is adjusted by an external device to move along the waist-shaped hole 41 away from the small single hook mounting base 2, so that the tension of the thread increases.

[0024] In one embodiment, the pressure sensor assembly 6 includes a mounting base 61 and a pressure sensor 62. The mounting base 61 is mounted on the base 1, and the pressure sensor 62 is mounted on the mounting base 61 and abuts against the bottom of the line tension sensing shaft mounting bracket 4.

[0025] The mounting base 61 has an "L" shape, which facilitates the installation of the pressure sensor 62. Because the top of the pressure sensor 62 abuts against the bottom of the tension sensing shaft mounting bracket 4, the tension of the surface line is transmitted to the pressure sensor 62 through the tension sensing shaft 52 and the mounting base 61. The pressure sensor 62 detects the tension value and sends it to the control module. The control module is generally a microcontroller or MCU module. The control module has a pre-stored normal tension range, for example, 75g-120g. If the tension exceeds 120g, it is considered that the tension is too high and the tension needs to be reduced.

[0026] The embroidery machine thread tension acquisition device also includes a pad 7, which is installed between the base 1 and the small single hook mounting base 2.

[0027] The working principle of the embroidery machine surface tension acquisition device of this application is as follows: The surface tension sensing shaft 52 detects the surface tension at a preset time and transmits it to the pressure sensor 62 through the mounting base 61. The pressure sensor 62 detects the surface tension value and sends it to the control module. The control module determines whether the surface tension value is higher than the first preset threshold or lower than the second preset threshold. If the surface tension value is higher than the first preset threshold, the control module sends a control signal to the external device. The external device adjusts the surface tension sensing shaft 52 to move along the waist-shaped hole 41 towards the small single hook mounting base 2, so that the surface tension decreases. If the surface tension is lower than the second preset threshold, the external device adjusts the surface tension sensing shaft 52 to move along the waist-shaped hole 41 away from the small single hook mounting base 2, so that the surface tension increases.

[0028] This embroidery machine's thread tension acquisition device, through the coordinated arrangement of a small single hook mounting base 2, several small single hooks 3, a thread tension sensing shaft mounting bracket 4, a thread tension sensing shaft assembly 5, and a pressure sensor assembly 6, ensures that during embroidery, the thread is always in contact with the top surface of the thread tension sensing shaft assembly 5. The thread tension is then transmitted to the pressure sensor assembly 6 via the thread tension sensing shaft assembly 5. The pressure sensor assembly 6 detects the thread tension and sends it to the control module. The control module determines if the thread tension is abnormal. If abnormal, the control module sends a control signal to the relevant equipment to adjust the thread tension, ensuring it remains within the normal range. By using the pressure sensor assembly 6 to monitor the thread tension value in real time, and then using the control module to determine if the thread tension value is abnormal, the device avoids missed detections, ensuring the thread tension value remains within the normal range, thus guaranteeing the quality of the embroidery. Furthermore, it requires relatively low experience or skill from the machine operator.

[0029] 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. A device for collecting tension of embroidery machine thread, characterized in that: Includes a base, a small single hook mounting base, several small single hooks, a line tension sensing shaft mounting bracket, a line tension sensing shaft assembly, and a pressure sensor assembly; The small hook mounting base is mounted on the base. The several small hooks are arranged at equal distances at both ends of the small hook mounting base. The pressure sensor assembly is mounted on both ends of the base. There are two line tension sensing shaft mounting brackets, symmetrically arranged on the pressure sensor assembly and located at both ends of the small hook mounting base. The two ends of the line tension sensing shaft assembly are movably mounted on the line tension sensing shaft mounting bracket. The two ends of the surface line are arranged on the two sets of small hooks arranged opposite each other and abut against the top surface of the line tension sensing shaft assembly. The line tension sensing shaft assembly is used to transmit the surface line tension to the pressure sensor assembly.

2. The embroidery machine thread tension acquisition device according to claim 1, characterized in that: The small single hook mounting base has several U-shaped grooves symmetrically arranged at both ends, and the several U-shaped grooves are used to install several small single hooks.

3. The embroidery machine thread tension acquisition device according to claim 1, characterized in that: The mounting bracket for the linear tension sensing shaft has a waist-shaped hole.

4. The embroidery machine thread tension acquisition device according to claim 3, characterized in that: The line tension sensing shaft assembly includes two mounting bases and a line tension sensing shaft. The two ends of the line tension sensing shaft are fixedly or detachably mounted on the two mounting bases. The mounting bases have protrusions that are embedded in the waist-shaped holes and can slide vertically along the waist-shaped holes.

5. The embroidery machine thread tension acquisition device according to claim 4, characterized in that: The width of the protrusion is adapted to the width of the waist-shaped hole.

6. The embroidery machine thread tension acquisition device according to claim 1, characterized in that: The pressure sensor assembly includes a mounting base and a pressure sensor. The mounting base is mounted on the base, and the pressure sensor is mounted on the mounting base and abuts against the bottom of the linear tension sensing shaft mounting bracket.

7. The embroidery machine thread tension acquisition device according to claim 6, characterized in that: The mounting base has an "L" shaped structure.

8. The embroidery machine thread tension acquisition device according to claim 1, characterized in that: The embroidery machine thread tension acquisition device also includes a pad, which is installed between the base and the small single hook mounting seat.