A thread break detection device based on an embroidery machine

Abstract

The utility model belongs to embroidery machine technical field, concretely is a kind of broken line detection device based on embroidery machine, including fuselage, embroidery thread device, the side of fuselage is provided with embroidery thread device, the outer surface of fuselage is provided with fixed plate, the top of fixed plate is rotatably provided with wire roller, the outer surface of fixed plate is provided with mounting plate, the inside of mounting plate is rotatably provided with limit wheel, the side of limit wheel is slidably provided with cleaning block, the inside of cleaning block is provided with cleaning structure, the outer surface of mounting plate is slidably provided with mounting seat, the utility model is provided with limit wheel and ratchet block and other structure, can be in broken line when happening in time to lock limit wheel, solved after embroidery thread breakage, embroidery thread can be wound into tensioning wheel and conveying wheel, lead to jamming problem;By setting filter screen and other structures, can be in embroidery thread detection, adsorb the short small fluff on embroidery thread surface, solved the fluff can be adhered to the surface of embroidery machine, affect the positioning problem of embroidery machine.

Description

Technical Field

[0001] This utility model belongs to the field of embroidery machine technology, and in particular relates to a thread breakage detection device based on an embroidery machine. Background Technology

[0002] An embroidery machine is a mechanical device that can automatically or semi-automatically embroider patterns on materials such as fabrics and leather. During the high-speed operation of the embroidery machine, a series of problems such as thread breakage and thread tangling may occur. Therefore, thread breakage detection equipment is a crucial function, and its main purpose is to ensure the continuity of the embroidery process, the quality of finished products, and production efficiency.

[0003] Patent CN221029032U discloses a thread breakage detection device based on an embroidery machine, including an embroidery machine body. A winding drum is located on the upper right side of the embroidery machine body. A first guide wheel is rotatably connected to the front of the embroidery machine body. A miniature air pump is located on the lower side of the front of the embroidery machine body. A flow valve is fixedly connected to the air outlet of the miniature air pump. A branch pipe is located on the left side of the flow valve. An air jet block is located on the left side of the front of the embroidery machine body near the first guide wheel. This utility model relates to the field of embroidery machine technology. In this thread breakage detection device based on an embroidery machine, when the embroidery thread breaks during the operation of the embroidery machine body, the tension wheel loses its support. A spring drives the telescopic frame and the tension wheel to press down on the embroidery thread. Finally, the tension wheel presses the embroidery thread against the receiving frame. After the tension wheel contacts the receiving frame, the conductive block on the receiving frame transmits electricity through the energized plate on the tension wheel, the telescopic frame, the conductive ring, and the wire to the alarm light, causing the alarm light to illuminate.

[0004] In existing technologies, by setting tensioning wheels and energized plates, embroidery threads can be detected and alarms can be issued in time when they break. However, the following problems still exist in overall use: First, existing embroidery machines can only detect thread breaks. When the embroidery thread breaks, it will still be wound into the tensioning wheel and conveyor wheel, causing jamming and affecting maintenance efficiency. Second, during the operation of the embroidery machine, the surface of the embroidery thread will carry lint, which will adhere to the surface of the embroidery machine, affecting the positioning of the embroidery machine and thus affecting the quality of the embroidery thread. Utility Model Content

[0005] To overcome the shortcomings of existing technologies, this utility model provides a thread breakage detection device based on an embroidery machine. By setting up structures such as a limit wheel and a ratchet block, the limit wheel can be locked in time when a thread breakage occurs, preventing the continued feeding of embroidery thread. This solves the problem that after the embroidery thread breaks, it will be wound into the tension wheel and the conveyor wheel, causing jamming. By setting up structures such as a filter screen and cleaning holes, short lint on the surface of the embroidery thread can be adsorbed during the detection of the embroidery thread, solving the problem that lint will adhere to the surface of the embroidery machine and affect the positioning of the embroidery machine.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a thread breakage detection device based on an embroidery machine, comprising a machine body and an embroidery thread device. The embroidery thread device is disposed on one side of the machine body. A fixing plate is disposed on the outer surface of the machine body. A guide roller is rotatably disposed on the top of the fixing plate. An mounting plate is disposed on the outer surface of the fixing plate. Two limiting wheels are rotatably disposed inside the mounting plate. A cleaning block is slidably disposed on one side of each of the two limiting wheels. A cleaning structure is disposed inside the cleaning block. A mounting seat is slidably disposed on the outer surface of the mounting plate. A detection wheel is rotatably disposed inside the mounting seat. A distance detector is disposed above the detection wheel on the top end face of the mounting seat.

[0007] Preferably, the outer surface of the mounting plate is provided with a fixed base, and the outer surface of the fixed base is slidably provided with a movable plate, which is fixedly connected to the mounting base.

[0008] Preferably, the inner wall of the mounting base is symmetrically slidably provided with two first sliders, both of which are rotatably connected to the detection wheel. Each of the two first sliders is provided with a return spring on its top end face, and the two return springs are respectively fixedly connected to the top end of the inner wall of the first slider.

[0009] Preferably, a first pressure sensor is provided above the first slider on the bottom end face of the mounting base, and the detection end of the first pressure sensor is movably abutting against the top end face of the first slider.

[0010] Preferably, a mounting shell is provided below the detection wheel on the outer surface of the fixed base, and a second pressure sensor is provided inside the mounting shell, with the detection end of the second pressure sensor extending towards the top end face of the mounting shell.

[0011] Preferably, the cleaning structure includes multiple cleaning holes disposed on the outer surfaces of the two cleaning blocks, a filter screen disposed inside each of the two cleaning blocks, an air chamber disposed on one side of each of the two filter screens, a connection port disposed on the upper end face of each of the two air chambers, a flexible hose disposed outside the connection port, an air pump disposed at one end of the flexible hose on the top end face of the machine body, and both connection ports are connected to the interior of the air pump through the flexible hose.

[0012] Preferably, the outer surface of the mounting plate is symmetrically provided with two sliding grooves, and a second slider is slidably disposed inside each of the two sliding grooves. One end of each of the two second sliders is fixedly connected to two cleaning blocks, and the two second sliders are provided with bidirectional threaded rods for internal thread transmission.

[0013] Preferably, each of the two limiting wheels has multiple ratchet blocks on its inner wall, and each of the multiple ratchet blocks has multiple locking blocks on one side of its outer surface of the cleaning block, and the multiple locking blocks can movably abut against the ratchet blocks.

[0014] Preferably, the outer surface of the fixed base is provided with two support wheels.

[0015] Preferably, the outer surface of the fixed base is rotatably provided with a one-way threaded rod, which is threadedly connected to the movable plate. An auxiliary rod is slidably provided inside the movable plate, and one end of the auxiliary rod is fixedly connected to the fixed base.

[0016] In summary, compared with existing technologies, the beneficial effects of this solution are as follows:

[0017] This utility model, by setting up a mounting base, a first pressure sensor, a distance detector, and a second pressure sensor, can not only detect whether a thread breakage has occurred, but also detect the tension of the embroidery thread, thus making it easier to control the tension of the embroidery thread and improve quality. Furthermore, by setting up a second pressure sensor, it can detect whether the embroidery thread is knotted, thereby increasing the knot detection function of the embroidery thread machine.

[0018] This utility model, by setting up a limit wheel, ratchet block, and cleaning block, can lock the limit wheel in time when the thread breaks, preventing the continued feeding of embroidery thread. At the same time, it abuts the embroidery thread against the outer surface of the limit wheel to prevent the embroidery thread from getting tangled on the outer surface of the limit wheel, thereby improving the detection efficiency.

[0019] This invention, by incorporating a filter screen, cleaning holes, an air chamber, and an air pump, can adsorb short lint from the surface of the embroidery thread during thread inspection, preventing the lint from accumulating on the positioning device of the embroidery machine and thus improving the positioning accuracy of the embroidery machine. Attached Figure Description

[0020] Figure 1 This is a first-view perspective perspective view of the present invention;

[0021] Figure 2 This is a structural diagram of the fixed base component;

[0022] Figure 3 This is a side view of the present invention;

[0023] Figure 4 for Figure 3 A three-dimensional sectional view at point AA;

[0024] Figure 5 for Figure 4 A magnified view of a section at point B in the middle;

[0025] Figure 6 for Figure 4 A magnified view of a section at point C;

[0026] Figure 7 This is a second-view perspective perspective view of the present invention;

[0027] In the diagram: 10. Machine body, 11. Embroidery thread device, 12. Fixing plate, 13. Guide roller, 14. Mounting plate, 15. Fixing base, 16. One-way threaded rod, 17. Movable plate, 18. Mounting seat, 19. First pressure sensor, 20. Distance detector, 21. First slider, 22. Return spring, 23. Detection wheel, 24. Mounting shell, 25. Second pressure sensor, 26. Support wheel, 27. Limiting wheel, 28. Ratchet block, 29. Cleaning block, 30. Cleaning hole, 31. Filter screen, 32. Air chamber, 33. Buffer damper, 34. Connection port, 35. Slide groove, 36. Second slider, 37. Two-way threaded rod, 38. Air pump, 39. Locking block. Detailed Implementation

[0028] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0029] refer to Figure 1 and Figure 2 A thread breakage detection device based on an embroidery machine includes a machine body 10 and an embroidery thread device 11. The embroidery thread device 11 is provided on one side of the machine body 10. The embroidery thread device 11 is existing technology. By connecting embroidery thread, it can embroider the embroidery thread onto the surface of the fabric. The specific operation method will not be elaborated in this article. A fixing plate 12 is provided on the outer surface of the machine body 10. A guide roller 13 is rotatably provided on the top of the fixing plate 12. An embroidery thread spool can be installed on the outer surface of the guide roller 13. A drive motor can be installed on the other side of the guide roller 13 on the outer surface of the fixing plate 12 to drive the embroidery thread spool to rotate and control the thread output speed of the embroidery thread spool. An mounting plate 14 is provided on the outer surface of the fixing plate 12. Two limiting wheels 27 are rotatably provided inside the mounting plate 14. The embroidery thread is led out from the guide roller 13 and wound around the bottom end face of one limiting wheel 27 away from the embroidery thread device 11. Then, it is wound out from the top outer circular face of the other limiting wheel 27 and connected to the embroidery thread device 11 to supply thread to the embroidery thread device 11.

[0030] Further reference Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5A fixed base 15 is provided on the outer surface of the mounting plate 14. A one-way threaded rod 16 is rotatably provided on the outer surface of the fixed base 15. A movable plate 17 is provided on the external thread of the one-way threaded rod 16. The one-way threaded rod 16 and the movable plate 17 are connected by thread. An auxiliary rod is slidably provided inside the movable plate 17. One end of the auxiliary rod is fixedly connected to the fixed base 15. A first motor is provided on the bottom end of the one-way threaded rod 16 on the bottom end face of the fixed base 15. The output shaft of the first motor is connected to one end of the one-way threaded rod 16. By starting the first motor, the one-way threaded rod 16 can be driven to rotate, and the one-way threaded rod 16 can drive the external movable plate 17 to move up and down. Two support wheels 26 are provided on the outer surface of the fixed base 15. The two support wheels 26 abut against the bottom end of the embroidery thread. The embroidery thread will be in a horizontal state under the support of the two support wheels 26, so as to facilitate subsequent knotting and inspection.

[0031] Further reference Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 A mounting base 18 is provided at one top end of the movable plate 17. Two first sliders 21 are symmetrically slidably arranged on the inner wall of the mounting base 18. A return spring 22 is provided on the top end face of each of the two first sliders 21. The two return springs 22 are fixedly connected to the top end of the inner wall of the first sliders 21 respectively. A buffer damping structure is provided at the connection point of the two return springs 22 to absorb the vibration when the springs return up and down, ensuring stability. A detection wheel 23 is rotatably arranged between the two first sliders 21. A distance detector 20 is provided above the detection wheel 23 on the top end face of the mounting base 18. The detection end of the distance detector 20 can detect the height of the detection wheel 23. When the movable plate 17 slides down, it will drive the mounting base 18 at one end to slide down, thereby driving the internal detection wheel 23 to slide down, so that the detection wheel 23 pushes the embroidery thread down. During the pushing process, the embroidery thread is pushed down by the upward reaction force. The upward push of the detection wheel 23 changes its position. Simultaneously, the detection wheel 23 drives the first sliders 21 on both sides, causing the first sliders 21 to compress the return springs 22 on both sides. A first pressure sensor 19 is provided on the bottom end face of the mounting base 18 above the first slider 21. The detection end of the first pressure sensor 19 is in contact with the top end face of the first slider 21. As the first slider 21 moves, it compresses the output end of the first pressure sensor 19, thereby allowing the first pressure sensor 19 to detect the pressure of the yarn, which facilitates the control of the tension of the embroidery thread. When the embroidery thread breaks, the pushing force of the embroidery thread on the detection wheel 23 disappears. At this time, the return springs 22 recover due to their elastic potential energy and push the first sliders 21 to move the detection wheel 23. At this time, the distance detector 20 detects the change in the position of the detection wheel 23, thus determining that the embroidery thread has broken, and then sends a signal.

[0032] Cleaning blocks 29 are slidably mounted on one side of each of the two limiting wheels 27. Two grooves 35 are symmetrically arranged on one side of each cleaning block 29 on the outer surface of the mounting plate 14. Second sliders 36 are slidably mounted inside each of the two grooves 35. One end of each second slider 36 is fixedly connected to one of the two cleaning blocks 29. A bidirectional threaded rod 37 is threaded inside each second slider 36. A second motor is mounted on one end of each bidirectional threaded rod 37 on the outer surface of the mounting plate 14. When a wire breakage occurs, the distance detector 20 sends a wire breakage signal to the second motor, which starts and drives the bidirectional threaded rod 37 to rotate. The bidirectional threaded rod 37 drives the two second sliders 36 on the outer surface to move relative to each other, causing the second sliders 36 to drive the two cleaning blocks 29 to move closer to the outer surface of the limiting wheel 27, so that the cleaning blocks 29 abut against the outer surface of the limiting wheel 27 and prevent the limiting wheel 27 from continuing to rotate. Multiple ratchet blocks 28 are provided on the inner wall of each of the two limiting wheels 27. Multiple locking blocks 39 are provided on one side of the multiple ratchet blocks 28 on the outer surface of the cleaning blocks 29. When the cleaning blocks 29 contact the limiting wheel 27, they will drive the multiple locking blocks 39 to move, thereby abutting the locking blocks 39 against the outer surface of the ratchet blocks 28, thereby improving the braking effect.

[0033] Further reference Figure 3 , Figure 4 , Figure 6 and Figure 7 Below the detection wheel 23, on the outer surface of the fixed base 15, is a mounting shell 24. Inside the mounting shell 24 is a second pressure sensor 25. The detection end of the second pressure sensor 25 extends to the top end face of the mounting shell 24. When the detection wheel 23 moves downward, it will drive the yarn downward and bring the yarn against the detection end face of the second pressure sensor 25. When embroidering, if the surface of the embroidery thread is knotted, the knotted part will come into contact with the detection end of the second pressure sensor 25 when it passes by the second pressure sensor 25, thereby squeezing the detection end. The squeezing force is detected by the second pressure sensor 25, and then a signal is sent. An alarm light is provided on the end face of the machine body 10. After receiving the error signal, the alarm light will start flashing to sound an alarm.

[0034] Further reference Figure 3 , Figure 4 , Figure 6 and Figure 7The cleaning block 29 has a cleaning structure inside, which includes multiple cleaning holes 30 on the outer surface of the two cleaning blocks 29. Each of the two cleaning blocks 29 has a filter screen 31 inside, and each of the two filter screens 31 has an air chamber 32 on one side. The upper end face of the two air chambers 32 has a connection port 34, and the outside of the connection port 34 is equipped with a hose. One end of the hose is connected to the top end face of the machine body 10, and the two connection ports 34 are connected to the inside of the air pump 38 through the hose. When transporting the embroidery thread, the air pump 38 is started, so that the air pump 38 draws air from the inside of the air chamber 32 through the hose, thereby creating a negative pressure inside the air chamber 32. Then, the air near the limiting wheel 27 is drawn out through the cleaning holes 30. After the embroidery thread wrapped around the outer surface of the limiting wheel 27 is attracted, the surface lint enters the inside of the cleaning block 29 through the cleaning holes 30 and is then blocked by the filter screen 31. The filter screen 31 is detachable and easy to clean, thereby improving the stability of the device.

[0035] This utility model discloses a thread breakage detection device based on an embroidery machine. Its installation and connection methods are all common mechanical methods. The control of the driving component by the similar detection components, as well as the relevant detection methods and specific circuit relationships of each detection component, can all adopt conventional electrical control technology. As long as the corresponding motion relationship can be completed in this solution and its beneficial effect can be achieved, it can be implemented. The embroidery thread device 11, the first motor, the second motor, the air pump 38, the first pressure sensor 19, the distance detector 20, the second pressure sensor 25, etc. in this utility model's thread breakage detection device based on an embroidery machine are all commercially available. Technicians in this industry only need to install and operate it according to the accompanying instruction manual, without requiring any creative work from those skilled in the art.

[0036] The specification and claims use certain terms to refer to specific components. Those skilled in the art will understand that hardware manufacturers may use different names to refer to the same component. This specification and claims do not distinguish components based on differences in name, but rather on differences in function. The term "comprising" throughout the specification and claims is an open-ended term and should be interpreted as "comprising but not limited to." "Approximately" means that within an acceptable margin of error, those skilled in the art can solve the technical problem and substantially achieve the technical effect within a certain margin of error.

[0037] It should be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a product or system comprising a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a product or system. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the product or system that includes said element.

[0038] The foregoing description illustrates and describes several preferred embodiments of this application. However, as previously stated, it should be understood that this application is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the application concept described herein through the foregoing teachings or techniques or knowledge in related fields. Any modifications and variations made by those skilled in the art that do not depart from the spirit and scope of this application should be within the protection scope of the appended claims.

Claims

1. A thread breakage detection device based on an embroidery machine, comprising a machine body (10) and an embroidery thread device (11), characterized in that, An embroidery device (11) is provided on one side of the machine body (10). A fixing plate (12) is provided on the outer surface of the machine body (10). A wire roller (13) is rotatably provided on the top of the fixing plate (12). An mounting plate (14) is provided on the outer surface of the fixing plate (12). Two limiting wheels (27) are rotatably provided inside the mounting plate (14). A cleaning block (29) is slidably provided on one side of each of the two limiting wheels (27). A cleaning structure is provided inside the cleaning block (29). An mounting seat (18) is slidably provided on the outer surface of the mounting plate (14). A detection wheel (23) is rotatably provided inside the mounting seat (18). A distance detector (20) is provided above the detection wheel (23) on the top end face of the mounting seat (18).

2. The thread breakage detection device based on an embroidery machine according to claim 1, characterized in that, The outer surface of the mounting plate (14) is provided with a fixed base (15), and a movable plate (17) is slidably provided on the outer surface of the fixed base (15). The movable plate (17) is fixedly connected to the mounting base (18).

3. The thread breakage detection device based on an embroidery machine according to claim 2, characterized in that, The inner wall of the mounting base (18) is symmetrically slidably provided with two first sliders (21). Both first sliders (21) are rotatably connected to the detection wheel (23). Each of the two first sliders (21) is provided with a reset spring (22) on its top end face. The two reset springs (22) are respectively fixedly connected to the top end of the inner wall of the first slider (21).

4. The thread breakage detection device based on an embroidery machine according to claim 3, characterized in that, A first pressure sensor (19) is provided above the first slider (21) on the bottom end face of the mounting base (18), and the detection end of the first pressure sensor (19) is in movable contact with the top end face of the first slider (21).

5. The thread breakage detection device based on an embroidery machine according to claim 3, characterized in that, Below the detection wheel (23), on the outer surface of the fixed base (15), there is a mounting shell (24). Inside the mounting shell (24), there is a second pressure sensor (25). The detection end of the second pressure sensor (25) extends toward the top end face of the mounting shell (24).

6. The thread breakage detection device based on an embroidery machine according to claim 5, characterized in that, The cleaning structure includes multiple cleaning holes (30) on the outer surface of two cleaning blocks (29). Each of the two cleaning blocks (29) is provided with a filter screen (31). Each of the two filter screens (31) is provided with an air chamber (32) on one side. Each of the two air chambers (32) is provided with a connection port (34) on its upper end face. A hose is provided outside the connection port (34). One end of the hose is provided with an air pump (38) on the top end face of the body (10). Both connection ports (34) are connected to the interior of the air pump (38) through the hose.

7. The thread breakage detection device based on an embroidery machine according to claim 1, characterized in that, The outer surface of the mounting plate (14) is symmetrically provided with two sliding grooves (35), and a second slider (36) is slidably provided inside each of the two sliding grooves (35). One end of each of the two second sliders (36) is fixedly connected to two cleaning blocks (29), and a bidirectional threaded rod (37) is provided inside the two second sliders (36) for threaded transmission.

8. The thread breakage detection device based on an embroidery machine according to claim 1, characterized in that, Multiple ratchet blocks (28) are provided on the inner walls of the two limiting wheels (27). Multiple locking blocks (39) are provided on one side of the multiple ratchet blocks (28) on the outer surface of the cleaning block (29). The multiple locking blocks (39) can movably abut against the ratchet blocks (28).

9. A thread breakage detection device based on an embroidery machine according to claim 2, characterized in that, The outer surface of the fixed base (15) is provided with two support wheels (26).

10. A thread breakage detection device based on an embroidery machine according to claim 2, characterized in that, The outer surface of the fixed base (15) is rotatably provided with a one-way threaded rod (16), which is threadedly connected to the movable plate (17). An auxiliary rod is slidably provided inside the movable plate (17), and one end of the auxiliary rod is fixedly connected to the fixed base (15).

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