Broken line induction device of doubling machine
By detecting thread breakage and activating an audible and visual alarm based on tension changes, combined with a protective cover and a limit mechanism, the power supply problem and insufficient alarm function of the wire breakage detection device for the winding machine are solved, enabling rapid location and efficient maintenance.
Patent Information
- Application Number
- CN202520277478.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-21
- Publication Date
- 2025-12-23
- Estimated Expiration
- 2035-02-21
AI Technical Summary
Existing wire breakage detection devices for twinning machines require continuous power supply and lack real-time alarm functions, resulting in extended downtime for maintenance and making them unsuitable for long-term use.
The device uses tension change to detect wire breakage. A spring pushes a moving block to slide, causing a contact plate to activate an audible and visual alarm. Power is supplied only when a wire is broken. The internal structure is protected by a cover, and the limit mechanism allows for easy opening and closing.
It enables instant alarm for line breaks and rapid fault location, reduces power consumption, improves equipment stability and maintenance efficiency, and lowers maintenance costs.
Smart Images

Figure CN223705868U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of wire breakage sensing technology, specifically a wire breakage sensing device for a wire twisting machine. Background Technology
[0002] As a key piece of equipment in textile, cable manufacturing and other fields, the core function of the wire combining machine is to combine multiple monofilaments into a single composite wire. Wire breakage is a common problem during the wire combining process. If it is not detected and stopped in time, it may lead to tangled mess, material waste, or even equipment damage. As an important functional module of the wire combining machine, the performance of the wire breakage sensing device directly affects production efficiency and product quality. Therefore, how to detect wire breakage in a timely and accurate manner and take measures to quickly restore production has become one of the key factors in improving the working efficiency of the wire combining machine.
[0003] The patent currently published with the number CN210029579U discloses a wire breakage detection device for a twinning machine, including a base plate, a base, a detection mechanism, a magnet, a trigger block, and a sensor. The base is fixed to the base plate and has a through hole. The detection mechanism includes a magnetic block, a support rod, and a locking nut. The support rod is inserted into the through hole on the base. The magnetic block is fixed to the support rod by the locking nut. The magnetic block has a wire-passing hole and cooperates with the magnet. The trigger block is fixed to the support rod. The sensor is fixed to the base plate and is connected to the control circuit of the twinning machine. The trigger block cooperates with the sensor. The magnet is fixed to the base plate.
[0004] However, the above-mentioned device has the following problems when in use: When the device is in use, it uses sensors to determine whether there is a disconnection. It requires a continuous power supply to the sensors, which requires an additional power supply line or frequent battery replacements. It is not convenient for long-term use. In addition, the device lacks an instant alarm function, making it difficult to quickly locate the fault point, resulting in prolonged downtime for maintenance and hindering the continuous operation of production activities. Utility Model Content
[0005] The purpose of this invention is to solve the problems existing in the prior art by proposing a wire breakage sensing device for a wire drawing machine, which can quickly alert the operator and help locate the fault point.
[0006] To achieve the above objectives, the present invention adopts the following technical solution:
[0007] A wire breakage sensing device for a wire twisting machine includes a frame with a placement hole, a cover movably mounted on the frame with a through hole, an audible and visual alarm mounted on the frame, a fixed block and a mounting block fixedly mounted on the frame, a pull rod slidably mounted on the mounting block, a movable block fixedly mounted on the other end of the pull rod, a spring fixedly mounted on the fixed block, the other end of the spring fixedly mounted on the movable block, a second contact piece mounted on the movable block, and a first contact piece adapted to the second contact piece mounted on the mounting block at a corresponding position.
[0008] Preferably, both the second contact and the first contact are electrically connected to the audible and visual alarm. When the second contact comes into contact with the first contact, the circuit is turned on and power is supplied to the audible and visual alarm.
[0009] Preferably, two connecting blocks are fixedly installed on the side of the cover facing the audible and visual alarm, and each of the two connecting blocks has a limit hole, and a limit mechanism is provided inside the frame.
[0010] Preferably, the limiting mechanism includes a shaft and a driven gear plate. The shaft is rotatably mounted inside the frame. One end of the shaft passes through the frame and is fixedly mounted with a rotating block. A driving gear is fixedly mounted on the shaft. There are two driven gear plates, and both driven gear plates are slidably mounted inside the frame. A mounting plate is fixedly mounted on the side of each driven gear plate away from the driving gear. A limiting rod is fixedly mounted on each of the two mounting plates, and the limiting rod is adapted to a limiting hole.
[0011] Preferably, both driven gear plates are slidably installed inside the frame, and the two driven gear plates are respectively located on the upper and lower sides of the driving gear, and both driven gear plates are meshed with the driving gear.
[0012] Preferably, two sliders are fixedly installed inside the cover, and the frame has grooves at corresponding positions for the sliders to slide through.
[0013] Preferably, the movable block is slidably mounted on the frame, and the frame has a groove adapted to the movable block.
[0014] Preferably, the cover is made of a transparent material.
[0015] Compared with the prior art, the present invention has the following beneficial effects:
[0016] (1) This utility model determines whether a yarn breakage has occurred by detecting changes in yarn tension. Once the yarn breaks, the spring will push the moving block to slide due to the loss of tension, so that the second contact piece contacts the first contact piece to form a closed circuit, thereby immediately triggering the sound and light alarm to emit sound and light warnings. This can not only quickly remind the operator to deal with the problem, but also help the staff to quickly locate the fault point.
[0017] (2) The present invention will only trigger the sound and light alarm to start and use electrical energy when the yarn breaks, causing the moving block to lose tension and the spring to push the moving block to slide so that the second contact piece contacts the first contact piece to form a closed circuit. This means that under normal working conditions (i.e. no breakage), the sound and light alarm is in a power-off standby state and will not consume any power. The system can ensure that the alarm function is activated only when an actual fault (such as a breakage) is detected. This greatly reduces unnecessary energy consumption. Compared with monitoring equipment that is continuously powered, this method is more environmentally friendly and economical.
[0018] (3) The cover set on the frame of this utility model can effectively protect the internal mechanical structure and electrical components from the influence of the external environment. In environments such as textile workshops, there is a lot of dust and impurities. The cover can prevent these substances from entering the device and affecting the normal operation of the equipment, ensuring stable operation of the equipment, reducing the probability of failure, and thus reducing maintenance costs and downtime.
[0019] (4) This utility model realizes the convenient opening and closing of the cover through the limiting mechanism. The operator only needs to rotate the rotating block to drive the active gear on the shaft to rotate, causing the upper and lower driven tooth plates to slide in opposite directions, so that the limiting rod can exit or insert into the limiting hole of the connecting block, thereby easily unlocking or locking the cover, greatly improving maintenance efficiency and user experience. Attached Figure Description
[0020] Figure 1 This is a schematic diagram of a wire breakage sensing device for a wire drawing machine proposed in this utility model;
[0021] Figure 2 This is a schematic diagram of the mounting structure of the wire breakage sensing device on the frame of a wire drawing machine proposed in this utility model;
[0022] Figure 3 This is a schematic diagram showing the installation positions of the first and second contact plates of the wire breakage sensing device for a wire drawing machine proposed in this utility model.
[0023] Figure 4 This is a schematic diagram showing the installation position of the slider of the wire breakage sensing device for a wire twisting machine proposed in this utility model.
[0024] Figure 5This is a schematic diagram of the limiting mechanism of the wire breakage sensing device for a wire drawing machine proposed in this utility model.
[0025] In the diagram: 1. Frame; 2. Cover; 3. Perforation; 4. Audible and visual alarm; 5. Connecting block; 6. Rotating block; 7. Fixing block; 8. Moving block; 9. Mounting block; 10. Pull rod; 11. Groove; 12. Spring; 13. Placement hole; 14. Slide groove; 15. First contact piece; 16. Second contact piece; 17. Limiting rod; 18. Shaft; 19. Limiting hole; 20. Slider; 21. Driving gear; 22. Driven gear plate; 23. Mounting piece. Detailed Implementation
[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0027] Please see Figures 1 to 5 A yarn breakage sensing device for a yarn doubling machine includes a frame 1, which supports the entire device and installs other components. The frame 1 should be fixedly installed at the corresponding position on the yarn doubling machine by means of bolts or other devices to realize the detection function. The frame 1 is provided with a placement hole 13 for guiding the yarn through.
[0028] A cover 2 is movably installed on the frame 1. The cover 2 has perforations 3. The cover 2 can effectively protect the internal mechanical structure and electrical components from the influence of the external environment, such as dust, impurities or accidental collisions, thereby ensuring the stable operation of the equipment. The perforations 3 facilitate the passing of yarn.
[0029] The frame 1 is equipped with an audible and visual alarm 4, which can adopt an LED strobe alarm scheme. When the audible and visual alarm 4 detects a broken wire, it will emit sound and light warnings to remind the operator to handle the situation and facilitate location.
[0030] As a pre-selection, a corresponding power supply device is installed on frame 1, which can be a battery.
[0031] A fixed block 7 and a mounting block 9 are fixedly installed on the frame 1. A pull rod 10 is slidably installed on the mounting block 9. A movable block 8 is fixedly installed on the other end of the pull rod 10. A spring 12 is fixedly installed on the fixed block 7. The other end of the spring 12 is fixedly installed on the movable block 8.
[0032] The movable block 8 is equipped with a second contact piece 16, and the mounting block 9 is equipped with a first contact piece 15 that is compatible with the second contact piece 16 at the corresponding position.
[0033] The second contact 16 and the first contact 15 are both electrically connected to the audible and visual alarm 4. When the second contact 16 contacts the first contact 15, the circuit is turned on and power is supplied to the audible and visual alarm 4.
[0034] Preferably, the second contact 16 and the first contact 15 can be made of copper, silver-plated copper, or other materials, thus possessing good conductivity, corrosion resistance, and a certain mechanical strength.
[0035] Under normal circumstances, due to the tension, the pull rod 10 cannot move, so that the moving block 8 can resist the elastic force of the spring 12. At this time, the second contact piece 16 on the moving block 8 is separated from the first contact piece 15 on the mounting block 9, and the sound and light alarm 4 is in a power-off standby state.
[0036] A broken wire will cause the moving block 8 to lose its tension. The elastic force of the spring 12 will drive the moving block 8 to slide away from the fixed block 7. The moving block 8 moves, causing the second contact piece 16 to contact the first contact piece 15, and the sound and light alarm 4 will be activated, thereby realizing the wire breakage reminder activity.
[0037] Two connecting blocks 5 are fixedly installed on the side of the cover 2 facing the sound and light alarm 4. Each connecting block 5 has a limit hole 19. A limit mechanism is provided inside the frame 1.
[0038] Preferably, the cover 2 can be provided with a sealing gasket on its contact surface with the frame 1 to ensure a sealing effect.
[0039] The limiting mechanism includes a shaft 18 and a driven gear plate 22. The shaft 18 is rotatably installed inside the frame 1. One end of the shaft 18 passes through the frame 1 and is fixedly installed with a rotating block 6. A driving gear 21 is fixedly installed in the shaft 18. There are two driven gear plates 22, and both driven gear plates 22 are slidably installed inside the frame 1. Mounting plates 23 are fixedly installed on the side of each driven gear plate 22 away from the driving gear 21. Limiting rods 17 are fixedly installed on each of the two mounting plates 23. The limiting rods 17 are adapted to the limiting holes 19.
[0040] Both driven gear plates 22 are slidably installed inside the frame 1. The two driven gear plates 22 are located on the upper and lower sides of the driving gear 21, respectively, and both driven gear plates 22 are meshed with the driving gear 21.
[0041] By rotating the rotating block 6, the rotating block 6 can drive the driving gear 21 of the shaft 18 to rotate, thereby driving the upper and lower driven gear plates 22 to slide in the opposite direction, so that the limit rod 17 can be disengaged from the limit hole 19 of the connecting block 5, making it convenient for operators to quickly unlock the cover 2 for maintenance.
[0042] Two sliders 20 are fixedly installed inside the cover 2. The frame 1 has a groove 14 at the corresponding position for the sliders 20 to slide. Through the cooperation of the sliders 20 and the groove 14, the cover 2 can be opened and closed smoothly, which is convenient for daily use.
[0043] The movable block 8 is slidably mounted on the frame 1. The frame 1 has a groove 11 that is adapted to the movable block 8. The presence of the groove 11 can ensure the smooth sliding of the movable block 8.
[0044] The cover 2 is made of transparent material, allowing operators to view the internal situation without opening the equipment, thus improving operational convenience and safety.
[0045] The working process of this utility model is as follows: the wire passes through the placement hole 13 of the frame 1 and the through hole 3 of the cover 2, and under the action of tension, the pulling rod 10 cannot move, so that the moving block 8 can resist the elastic force of the spring 12. At this time, the second contact piece 16 on the moving block 8 is separated from the first contact piece 15 on the mounting block 9, and the sound and light alarm 4 is in the power-off standby state.
[0046] When the wire breaks and the moving block 8 loses its tension, the elastic force of the spring 12 drives the moving block 8 to slide away from the fixed block 7. The moving block 8 moves, causing the second contact piece 16 to contact the first contact piece 15, forming a closed circuit. The sound and light alarm 4 is activated to sound an alarm, which not only reminds the operator but also helps the operator to quickly locate the device.
[0047] When it is necessary to thread wires or perform maintenance, simply rotate the rotating block 6 to make the rotating block 6 drive the driving gear 21 of the shaft 18 to rotate, thereby driving the two driven gear plates 22 to slide in opposite directions. This will allow the limiting rod 17 to exit the limiting hole 19 of the connecting block 5, making it convenient for operators to quickly unlock the cover 2 for maintenance. After that, the cover 2 can be slid to remove the cover 2, thereby exposing the structure on the frame 1, which is convenient for threading wires and maintenance.
[0048] After the maintenance is completed, close the cover 2 and rotate the rotating block 6 in the opposite direction. The limit rod 17 is reinserted into the limit hole 19 to complete the mechanical locking and prevent accidental opening.
[0049] 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 wire breakage sensing device for a wire drawing machine, comprising a frame (1) having a placement hole (13) thereon, characterized in that, A cover (2) is movably mounted on the frame (1). A through hole (3) is provided on the cover (2). An audible and visual alarm (4) is mounted on the frame (1). A fixing block (7) and a mounting block (9) are fixedly mounted on the frame (1). A pull rod (10) is slidably mounted on the mounting block (9). A moving block (8) is fixedly mounted on the other end of the pull rod (10). A spring (12) is fixedly mounted on the fixing block (7). The other end of the spring (12) is fixedly mounted on the moving block (8). A second contact piece (16) is mounted on the moving block (8). A first contact piece (15) that matches the second contact piece (16) is mounted on the mounting block (9) at the corresponding position.
2. The wire breakage sensing device for a twinning machine according to claim 1, characterized in that, The second contact (16) and the first contact (15) are both electrically connected to the audible and visual alarm (4). When the second contact (16) and the first contact (15) come into contact, the circuit is turned on and the audible and visual alarm (4) is powered.
3. The wire breakage sensing device for a twinning machine according to claim 1, characterized in that, Two connecting blocks (5) are fixedly installed on the side of the cover (2) facing the sound and light alarm (4). Limiting holes (19) are opened on both connecting blocks (5). A limiting mechanism is provided inside the frame (1).
4. The wire breakage sensing device for a twinning machine according to claim 3, characterized in that, The limiting mechanism includes a shaft (18) and a driven gear plate (22). The shaft (18) is rotatably installed inside the frame (1). One end of the shaft (18) passes through the frame (1) and is fixedly installed with a rotating block (6). A driving gear (21) is fixedly installed on the shaft (18). There are two driven gear plates (22), and both driven gear plates (22) are slidably installed inside the frame (1). Mounting plates (23) are fixedly installed on the side of the two driven gear plates (22) away from the driving gear (21). Limiting rods (17) are fixedly installed on both mounting plates (23). The limiting rods (17) are adapted to the limiting holes (19).
5. The wire breakage sensing device for a twinning machine according to claim 4, characterized in that, Both driven toothed plates (22) are slidably installed inside the frame (1). The two driven toothed plates (22) are located on the upper and lower sides of the driving gear (21) respectively, and both driven toothed plates (22) are meshed with the driving gear (21).
6. The wire breakage sensing device for a twinning machine according to claim 1, characterized in that, The cover (2) has two sliders (20) fixedly installed inside, and the frame (1) has a groove (14) at the corresponding position for the sliders (20) to slide.
7. The wire breakage sensing device for a twinning machine according to claim 1, characterized in that, The movable block (8) is slidably mounted on the frame (1), and the frame (1) is provided with a groove (11) adapted to the movable block (8).
8. The wire breakage sensing device for a twinning machine according to claim 1, characterized in that, The cover (2) is made of transparent material.
Citation Information
Patent Citations
Broken yarn detection device of doubling machine
CN210029579U