Embroidery machine broken thread detection device capable of adjusting tension of embroidery thread in real time

Abstract

The utility model relates to the technical field of embroidery machines, in particular to a broken thread detection device for an embroidery machine, which is used for adjusting the tension of embroidery threads in real time and comprises a tension mechanism and is used for adjusting the tension of the embroidery threads. Longitudinal guide rails are fixed to the left and right ends of the front end of the mounting plate, longitudinal sliding blocks are slidably mounted on the longitudinal guide rails, a sliding plate is fixed between the front ends of the longitudinal sliding blocks on the two sides, and a plurality of bilaterally symmetrical chutes are formed in the sliding plate. The adjusting assembly comprises a plurality of transverse sliding blocks installed on the transverse guide rail in a sliding mode, and a sliding frame is fixed to the transverse sliding blocks; the guide wheels are synchronously and equidistantly adjusted through linkage, and uniform distribution of tension of embroidery threads is ensured; accurate tension control is achieved through the independent fine adjustment mechanism; double monitoring is formed by combining a tension sensor and photoelectric detection, real-time feedback adjustment is achieved, broken threads are rapidly recognized, and the embroidery quality and the equipment reliability are effectively improved.

Description

Technical Field

[0001] This utility model relates to the field of embroidery machine technology, specifically to an embroidery machine thread breakage detection device that allows for real-time adjustment of embroidery thread tension. Background Technology

[0002] In the field of textile machinery, embroidery machines, as key equipment for creating complex embroidery patterns, directly impact the quality of embroidered products and production efficiency through their thread tension control technology. As embroidery techniques evolve towards higher precision and speed, higher demands are placed on the real-time performance and stability of embroidery thread tension control.

[0003] According to CN222226721U, a yarn tension adjusting device is disclosed. This technology discloses a technical solution including "an adjusting mechanism, a fixing mechanism, and a rotating mechanism. The fixing mechanism is fixedly disposed on one side of the adjusting mechanism, and the rotating mechanism is fixedly disposed on the fixing mechanism. The adjusting mechanism includes a fixing plate, a nested ring, a threaded groove, a threaded rod, a bearing, a connecting port, a turntable, a fixing port, and a crank. The nested ring is fixedly disposed on one side of the fixing plate." It has the technical advantages of "passing the yarn through the rotating groove on the turntable in sequence, rotating the crank to make the turntable rotate, thereby making the threaded rod rotate. The rotation of the threaded rod can adjust the length of the threaded rod in the fixing plate, thereby moving the moving plate, and finally adjusting the position of the turntable between the fixing plates, so as to adjust the yarn tension. The above design has a simple structure, small size, easy to carry, and flexible and convenient adjustment."

[0004] Existing embroidery machines lack an effective synchronous adjustment mechanism for tension adjustment. As a result, multiple guide wheels cannot achieve equidistant linkage adjustment, leading to uneven tension distribution of the embroidery thread at each contact point. Significant local tension differences can easily cause the thread to be too tight in some places and too loose in others, resulting in quality problems such as thread breakage and skipped stitches. It can also affect the overall flatness of the embroidery and the accuracy of the pattern. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a thread breakage detection device for embroidery machines that allows for real-time adjustment of embroidery thread tension. Through linkage, the guide wheels are adjusted synchronously and equidistantly to ensure uniform tension distribution of the embroidery thread. An independent fine-tuning mechanism enables precise tension control. Combining a tension sensor and photoelectric detection forms a dual monitoring system, providing real-time feedback and adjustment, and quickly identifying thread breaks, effectively improving embroidery quality and equipment reliability.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a thread breakage detection device for embroidery machines that provides real-time adjustment of embroidery thread tension, comprising a tension mechanism for adjusting embroidery thread tension, wherein the tension mechanism comprises:

[0007] The main components include horizontal guide rails fixed on the upper and lower sides of the front end of the mounting plate, longitudinal guide rails fixed on the left and right ends of the front end of the mounting plate, longitudinal sliders slidably mounted on the longitudinal guide rails, and a sliding plate fixed between the front ends of the two longitudinal sliders. Several symmetrical inclined grooves are opened inside the sliding plate.

[0008] The adjustment assembly includes several transverse sliders that are slidably mounted on a transverse guide rail, and a slide frame is fixed on the transverse slider. A deep groove ball bearing is rotatably mounted at the front end of the slide frame, and the deep groove ball bearing is located inside the inclined groove. A shaft frame is longitudinally slidably mounted on the upper end of the slide frame, and a guide wheel is rotatably mounted at the front end of the shaft frame.

[0009] A detection component is installed on the main component and used for wire breakage detection.

[0010] Preferably, the main component further includes a first cylinder installed at the rear end of the mounting plate, a connector fixed at the lower output end of the first cylinder, a floating joint installed at the top front end of the connector, and the upper end of the floating joint connected to the lower end of the slide plate.

[0011] Preferably, the adjustment assembly further includes a carriage mounted on the upper end of the carriage, and the upper output end of the carriage is connected to the shaft bracket.

[0012] Preferably, the detection component includes a mounting bracket fixed to one side of the rear end of the mounting plate, and a roller tension sensor is mounted on the front end of the mounting bracket.

[0013] Preferably, the detection component further includes oblong holes on both sides inside the mounting frame, and the roller tension sensor is fixed to the mounting frame by bolts through the oblong holes.

[0014] Preferably, the tension mechanism further includes a photoelectric sensor mounted on one of the shafts, with the detection end of the photoelectric sensor facing the guide wheel.

[0015] Beneficial effects

[0016] This invention provides a device for detecting thread breakage in embroidery machines that allows for real-time adjustment of embroidery thread tension.

[0017] Compared with existing technologies, it has the following advantages:

[0018] 1. The output end of the first cylinder drives the connecting piece in conjunction with the floating joint to raise and lower the slide plate. When the slide plate rises and falls, the inclined groove and deep groove ball bearing drive the slide frame to move, realizing synchronous and equidistant adjustment of each adjustment component. The synchronous movement of each guide wheel ensures that the tension value of the embroidery thread is completely consistent at each contact point, making the tension distribution of the embroidery thread more uniform and effectively preventing problems such as thread breakage and skipping caused by excessive or insufficient local tension. Furthermore, the output end of the second cylinder drives the guide wheel on the shaft frame to move, thereby adjusting the tension of the embroidery thread. Each guide wheel can be adjusted independently, realizing precise fine-tuning of the tension of the embroidery thread.

[0019] 2. The roller tension sensor directly contacts the embroidery thread's running path, enabling real-time monitoring of the thread's actual tension and feeding the detection signal back to the control system. Simultaneously, when the embroidery thread is running normally, the guide wheel rotates continuously with the thread's movement, and the photoelectric sensor outputs continuous pulse signals. When a thread breakage occurs, the guide wheel stops rotating, the photoelectric sensor detects the signal interruption, and the control system immediately triggers a thread breakage alarm and stops the machine. The photoelectric sensor and the roller tension sensor form a complementary detection mechanism. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0021] Figure 2 This is a structural diagram of the back of the present invention;

[0022] Figure 3 This is a schematic diagram of the lower end of the present invention;

[0023] Figure 4 This is a schematic diagram of the adjustment component in this utility model.

[0024] In the diagram: 1. Tension mechanism; 11. Main component; 111. Mounting plate; 112. Transverse guide rail; 113. Longitudinal guide rail; 114. Slide plate; 115. Inclined groove; 116. Longitudinal slider; 117. First cylinder; 118. Connecting part; 119. Floating joint; 12. Adjustment component; 121. Carriage; 122. Deep groove ball bearing; 123. Shaft bracket; 124. Guide wheel; 125. Second cylinder; 126. Transverse slider; 13. Detection component; 131. Mounting bracket; 132. Roller tension sensor; 133. Waist-shaped hole; 14. Photoelectric sensor. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Please see Figure 1 - Figure 4 This utility model provides a technical solution: a thread breakage detection device for embroidery machines that adjusts the tension of embroidery thread in real time, including a tension mechanism 1 for adjusting the tension of the embroidery thread, the tension mechanism 1 including:

[0027] The main component 11 includes a horizontal guide rail 112 fixed on both the upper and lower sides of the front end of the mounting plate 111, a longitudinal guide rail 113 fixed on both the left and right ends of the front end of the mounting plate 111, a longitudinal slider 116 slidably mounted on the longitudinal guide rail 113, a slide plate 114 fixed between the front ends of the two longitudinal sliders 116, and a plurality of symmetrical inclined grooves 115 opened inside the slide plate 114.

[0028] The adjusting assembly 12 includes several transverse sliders 126 slidably mounted on the transverse guide rail 112, and a slide 121 fixed on the transverse sliders 126. A deep groove ball bearing 122 is rotatably mounted on the front end of the slide 121, and the deep groove ball bearing 122 is located inside the inclined groove 115. A shaft frame 123 is longitudinally slidably mounted on the upper end of the slide 121, and a guide wheel 124 is rotatably mounted on the front end of the shaft frame 123.

[0029] The detection component 13 is disposed on the main component 11 and is used for wire breakage detection.

[0030] In this embodiment, when the skateboard 114 is raised or lowered, the slide frame 121 is moved by the inclined groove 115 in conjunction with the deep groove ball bearing 122, so as to realize the synchronous and equidistant adjustment of each adjustment component 12; the synchronous movement of each guide wheel 124 ensures that the tension value of the embroidery thread at each contact point is completely consistent, making the tension distribution of the embroidery thread more uniform, and effectively preventing problems such as thread breakage and skipping caused by excessive or insufficient local tension.

[0031] Specifically, the main component 11 also includes a first cylinder 117 installed at the rear end of the mounting plate 111. A connector 118 is fixed at the lower output end of the first cylinder 117. A floating joint 119 is installed at the top front end of the connector 118, and the upper end of the floating joint 119 is connected to the lower end of the slide plate 114.

[0032] In this embodiment, the output end of the first cylinder 117 drives the connector 118 to cooperate with the floating joint 119 to drive the slide plate 114 to rise and fall.

[0033] Specifically, the adjustment assembly 12 also includes a second cylinder 125 mounted on the upper end of the slide 121, and the upper output end of the second cylinder 125 is connected to the shaft bracket 123.

[0034] In this embodiment, the guide wheel 124 on the drive shaft frame 123 is moved by the output end of the second cylinder 125, thereby adjusting the tension of the embroidery thread; each guide wheel 124 can be adjusted independently to achieve precise fine-tuning of the tension of the embroidery thread.

[0035] Specifically, the detection component 13 includes a mounting bracket 131 fixed to one side of the rear end of the mounting plate 111, and a roller tension sensor 132 is mounted on the front end of the mounting bracket 131.

[0036] In this embodiment, the roller tension sensor 132 directly contacts the running path of the embroidery thread, which can monitor the actual tension of the thread in real time and feed the detection signal back to the control system.

[0037] Specifically, the detection component 13 also includes waist-shaped holes 133 on both sides inside the mounting bracket 131, and the roller tension sensor 132 is fixed to the mounting bracket 131 by bolts through the waist-shaped holes 133.

[0038] In this embodiment, the waist-shaped hole 133 provides a flexible and adjustable installation method for the roller tension sensor 132, which allows the sensor to be precisely calibrated according to the characteristics of different wires and process requirements, ensuring the accuracy of tension detection.

[0039] Specifically, the tension mechanism 1 also includes a photoelectric sensor 14 mounted on one of the shaft brackets 123, and the detection end of the photoelectric sensor 14 is positioned facing the guide wheel 124.

[0040] In this embodiment, when the embroidery thread is running normally, the guide wheel 124 rotates continuously with the movement of the thread, and the photoelectric sensor 14 outputs a continuous pulse signal; when a thread breakage occurs, the guide wheel 124 stops rotating, the photoelectric sensor 14 detects the signal interruption, and the control system immediately triggers a thread breakage alarm and stops the machine; the photoelectric sensor 14 and the roller tension sensor 132 form a complementary detection mechanism.

[0041] The working principle and usage process of this utility model are as follows: First, the output end of the first cylinder 117 drives the connecting piece 118 to cooperate with the floating joint 119 to drive the slide plate 114 to rise and fall; when the slide plate 114 rises and falls, the inclined groove 115 cooperates with the deep groove ball bearing 122 to drive the slide frame 121 to move, so as to realize the synchronous and equidistant adjustment of each adjustment component 12; the synchronous movement of each guide wheel 124 ensures that the tension value of the embroidery thread at each contact point is completely consistent, so that the tension distribution of the embroidery thread is more uniform, and effectively prevents problems such as thread breakage and skipping caused by excessive or insufficient local tension;

[0042] Then, the guide wheel 124 on the drive shaft frame 123 is moved by the output end of the second cylinder 125, thereby adjusting the tension of the embroidery thread; each guide wheel 124 can be adjusted independently to achieve precise fine-tuning of the tension of the embroidery thread;

[0043] Furthermore, the roller tension sensor 132 directly contacts the embroidery thread's running path, enabling it to monitor the actual tension of the thread in real time and feed the detection signal back to the control system. Simultaneously, when the embroidery thread is running normally, the guide wheel 124 rotates continuously with the thread's movement, and the photoelectric sensor 14 outputs continuous pulse signals. When a thread breakage occurs, the guide wheel 124 stops rotating, the photoelectric sensor 14 detects the signal interruption, and the control system immediately triggers a thread breakage alarm and stops the machine. The photoelectric sensor 14 and the roller tension sensor 132 form a complementary detection mechanism.

[0044] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0045] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A thread breakage detection device for embroidery machines that adjusts the tension of embroidery thread in real time, comprising a tension mechanism (1) and used for adjusting the tension of embroidery thread, characterized in that: The tension mechanism (1) includes: The main component (11) includes a transverse guide rail (112) fixed on both the upper and lower sides of the front end of the mounting plate (111), a longitudinal guide rail (113) fixed on both the left and right sides of the front end of the mounting plate (111), a longitudinal slider (116) slidably mounted on the longitudinal guide rail (113), a slide plate (114) fixed between the front ends of the longitudinal sliders (116) on both sides, and a number of symmetrical inclined grooves (115) opened inside the slide plate (114); The adjustment assembly (12) includes several transverse sliders (126) slidably mounted on a transverse guide rail (112), a slide (121) fixed on the transverse sliders (126), a deep groove ball bearing (122) rotatably mounted on the front end of the slide (121), and the deep groove ball bearing (122) is located inside the inclined groove (115). A shaft frame (123) is longitudinally slidably mounted on the upper end of the slide (121), and a guide wheel (124) is rotatably mounted on the front end of the shaft frame (123). A detection component (13) is disposed on the main component (11) and is used for wire breakage detection.

2. The embroidery machine thread breakage detection device for real-time adjustment of embroidery thread tension according to claim 1, characterized in that: The main component (11) also includes a first cylinder (117) installed at the rear end of the mounting plate (111). A connector (118) is fixed at the lower output end of the first cylinder (117). A floating joint (119) is installed at the top front end of the connector (118), and the upper end of the floating joint (119) is connected to the lower end of the slide plate (114).

3. The embroidery machine thread breakage detection device for real-time adjustment of embroidery thread tension according to claim 1, characterized in that: The adjustment assembly (12) also includes a second cylinder (125) mounted on the upper end of the slide (121), and the upper output end of the second cylinder (125) is connected to the shaft frame (123).

4. The embroidery machine thread breakage detection device for real-time adjustment of embroidery thread tension according to claim 1, characterized in that: The detection component (13) includes a mounting bracket (131) fixed to one side of the rear end of the mounting plate (111), and a roller tension sensor (132) is mounted on the front end of the mounting bracket (131).

5. The embroidery machine thread breakage detection device for real-time adjustment of embroidery thread tension according to claim 4, characterized in that: The detection component (13) also includes waist-shaped holes (133) on both sides inside the mounting bracket (131), and the roller tension sensor (132) is fixed to the mounting bracket (131) through the waist-shaped holes (133) and bolts.

6. The embroidery machine thread breakage detection device for real-time adjustment of embroidery thread tension according to claim 1, characterized in that: The tension mechanism (1) also includes a photoelectric sensor (14) mounted on one of the shafts (123), and the detection end of the photoelectric sensor (14) is positioned toward the guide wheel (124).

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