Electronic wire harness heat shrink tube feeding device with closed loop tension control

Abstract

The utility model provides a kind of electronic wire harness heat shrink tube feeding device with closed loop tension control, comprising: bottom plate;Discharge assembly, discharge assembly is set to the top of bottom plate;Discharge motor, discharge motor is set to one end of discharge assembly.The utility model provides a kind of electronic wire harness heat shrink tube feeding device with closed loop tension control, through discharge assembly, tension sensing component and feed assembly etc. Structure is mutually cooperated, when using, tension roll in tension sensing component will move up and down with the tension change of heat shrink tube, the pressure signal generated by moving block to pressure sensor is transmitted to controller in real time, controller is according to preset tension range, by adjusting the rotational speed of discharge motor and feed motor to dynamically adjust the tension of heat shrink tube, in this way not only avoid heat shrink tube fracture, reduce material waste and ensure the continuity of production process, subsequent processing quality can also be improved, satisfy the requirement of high-precision processing.

Description

Technical Field

[0001] This utility model relates to the field of heat shrink tubing feeding technology, and in particular to an electronic wire harness heat shrink tubing feeding device with closed-loop tension control. Background Technology

[0002] Heat shrink tubing, a specially designed heat shrink sleeve made of polyolefin material, is widely used in the insulation protection of various wire harnesses due to its excellent properties such as high-temperature shrinkage, flexibility, flame retardancy, insulation, and corrosion resistance.

[0003] When wrapping heat shrink tubing around a wire harness, the tubing needs to be cut to a length suitable for the wire harness. A feeding device is required for this cutting process. For example, the prior art, patent number CN218491122U, describes a feeding device for a heat shrink tubing cutter. This device includes a base, a support structure fixedly mounted on the upper left wall of the base, and a conveying structure fixedly mounted on the upper right wall of the base, opposite to the support structure. This invention relates to the field of feeding equipment technology. The heat shrink tubing cutter feeding device facilitates the installation of the coiled tubing wheel through the support structure and uses the conveying structure to pull and convey the tubing forward. During conveying, a first adjusting component adjusts the tubing according to its diameter or thickness, and a second adjusting component adjusts the limit according to the tubing's diameter or width to prevent lateral movement during conveying. This design is simple in structure, easy to operate, and its principle is straightforward. It can limit the height and width of the conveyed tubing and can convey multiple tubing simultaneously.

[0004] However, such feeding devices still have certain limitations in practical use. Due to the lack of an effective tension sensing and control structure, it is difficult to accurately control the tension during the conveying process of heat shrink tubing. When the tension of the conveying structure on the heat shrink tubing is too large, it is very easy to cause the heat shrink tubing to break, which will not only waste materials but also interrupt the production process and affect production efficiency. On the other hand, if the tension is too small, problems such as uneven feeding and loosening of the heat shrink tubing may occur, which will affect the subsequent processing quality and fail to meet the requirements of high-precision processing.

[0005] Therefore, it is necessary to provide an electronic wire harness heat shrink tubing feeding device with closed-loop tension control to solve the above-mentioned technical problems. Utility Model Content

[0006] This invention provides an electronic wire harness heat shrink tubing feeding device with closed-loop tension control, which solves the problem that existing feeding devices lack effective tension sensing and control structures, making it difficult to accurately control the tension during the heat shrink tubing conveying process, resulting in easy breakage of the heat shrink tubing or uneven feeding, affecting production efficiency and processing quality.

[0007] To solve the above-mentioned technical problems, this utility model provides an electronic wire harness heat shrink tubing feeding device with closed-loop tension control, comprising: Base plate; A feeding assembly is disposed on the top of the base plate; A feeding motor is disposed at one end of the feeding assembly; A tension sensing assembly is disposed on the top of the base plate. The tension sensing assembly includes a second support frame, two slide grooves, two moving blocks, a tension roller, and two pressure sensors. The second support frame is fixedly installed on the top of the base plate. The two slide grooves are respectively opened at both ends of the second support frame. The two moving blocks are slidably connected to the inner sides of the two slide grooves. The two ends of the tension roller are rotatably connected to one side of the two moving blocks. The two pressure sensors are respectively fixedly installed at the bottom of the inner sides of the two slide grooves. A material conveying assembly is fixedly installed at the other end of the top of the base plate.

[0008] Preferably, the feeding assembly includes a first support frame, two rotating tubes, two extension rods, and two clamping plates. The first support frame is fixedly installed on the top of the base plate. One rotating tube is rotatably connected to one end of the inner side of the first support frame, and the other rotating tube is fixedly installed on the output end of the feeding motor. The two extension rods are slidably connected to the interior of opposite ends of the two rotating tubes, and the two clamping plates are fixedly installed on opposite ends of the two extension rods.

[0009] Preferably, the feeding assembly further includes a clamping motor, a bidirectional threaded rod, and a movable plate. The clamping motor is fixedly installed at one end of the first support frame, the bidirectional threaded rod is fixedly installed at the output end of the clamping motor, and the two movable plates are respectively threaded to both ends of the outer side of the bidirectional threaded rod. The tops of the two movable plates are respectively rotatably connected to the outer side of the two extension rods.

[0010] Preferably, the feeding assembly includes a third support frame, a feeding motor, and a feeding roller. The third support frame is fixedly installed at the other end of the top of the base plate, the feeding motor is fixedly installed at one end of the third support frame, and the feeding roller is fixedly installed at the output end of the feeding motor.

[0011] Preferably, a pressing assembly is provided on the top of the feeding roller. The pressing assembly includes a movable frame, a pressing roller, and a threaded rod. The movable frame is slidably connected to the inner side of the third support frame. The pressing roller is disposed on the inner side of the movable frame. The bottom of the threaded rod is rotatably connected to the top of the movable frame. The threaded rod is also threadedly connected to the inside of the top of the third support frame.

[0012] Preferably, a controller is fixedly installed on the top of the base plate, and the controller is electrically connected to the feeding motor, the pressure sensor and the conveying motor respectively.

[0013] Preferably, the movable frame has movable grooves on both sides, a slide rod is fixedly installed on the inner side of the movable groove, a slider is slidably connected to the outer side of the slide rod, a spring is provided on the top of the slider, and the slider is rotatably connected to the end face of the pressure roller.

[0014] Compared with related technologies, the electronic wire harness heat shrink tubing feeding device with closed-loop tension control provided by this utility model has the following beneficial effects: This invention provides a feeding device for heat shrink tubing of electronic wire harnesses with closed-loop tension control. The device comprises a feeding assembly, a tension sensing assembly, and a conveying assembly that work together. During operation, the tension roller in the tension sensing assembly moves up and down in response to changes in the tension of the heat shrink tubing. The pressure signal generated by the pressure sensor is transmitted to the controller in real time. The controller then dynamically adjusts the tension of the heat shrink tubing by regulating the speeds of the feeding motor and the conveying motor according to a preset tension range. This not only prevents heat shrink tubing breakage, reduces material waste, and ensures the continuity of the production process, but also improves the quality of subsequent processing and meets the requirements of high-precision machining. Attached Figure Description

[0015] Figure 1 A schematic diagram of the structure of a first embodiment of an electronic wire harness heat shrink tubing feeding device with closed-loop tension control provided by this utility model; Figure 2 for Figure 1 The diagram shows the structure of the feeding assembly. Figure 3 for Figure 1 The diagram shows the structure of the tension sensing component. Figure 4 for Figure 1 The diagram shows the structure of the material conveying assembly and the material pressing assembly; Figure 5 This is a schematic diagram of the second embodiment of an electronic wire harness heat shrink tubing feeding device with closed-loop tension control provided by this utility model.

[0016] The following are the labeling elements in the diagram: 1. Base plate; 2. Feeding assembly; 21. First support frame; 22. Rotating tube; 23. Extension rod; 24. Clamping plate; 25. Moving plate; 26. Bidirectional threaded rod; 27. Clamping motor; 3. Feeding motor; 4. Tension sensing assembly; 41. Second support frame; 42. Slide groove; 43. Moving block; 44. Tension roller; 45. Pressure sensor; 5. Controller; 6. Conveying assembly; 61. Third support frame; 62. Conveying motor; 63. Conveying roller; 7. Pressing assembly; 71. Moving frame; 72. Pressing roller; 73. Threaded rod; 8. Moving groove; 9. Slide rod; 91. Spring; 92. Slider. Detailed Implementation

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0018] First Embodiment

[0019] Please refer to the following: Figure 1 , Figure 2 , Figure 3 , Figure 4 ,in, Figure 1 A schematic diagram of the structure of a first embodiment of an electronic wire harness heat shrink tubing feeding device with closed-loop tension control provided by this utility model; Figure 2 for Figure 1 The diagram shows the structure of the feeding assembly. Figure 3 for Figure 1 The diagram shows the structure of the tension sensing component. Figure 4 for Figure 1 The diagram shows the structure of the material conveying assembly and the material pressing assembly.

[0020] An electronic wire harness heat shrink tubing feeding device with closed-loop tension control includes: a base plate 1; Material feeding assembly 2, which is disposed on the top of the base plate 1; Feeding motor 3, which is disposed at one end of feeding assembly 2; Tension sensing component 4 is disposed on the top of the base plate 1. The tension sensing component 4 includes a second support frame 41, two slide grooves 42, two moving blocks 43, a tension roller 44, and two pressure sensors 45. The second support frame 41 is fixedly installed on the top of the base plate 1. The two slide grooves 42 are respectively opened at both ends of the second support frame 41. The two moving blocks 43 are respectively slidably connected to the inner sides of the two slide grooves 42. The two ends of the tension roller 44 are respectively rotatably connected to one side of the two moving blocks 43. The two pressure sensors 45 are respectively fixedly installed at the bottom of the inner sides of the two slide grooves 42. Material conveying assembly 6 is fixedly installed at the other end of the top of the base plate 1.

[0021] The feeding assembly 2 includes a first support frame 21, two rotating tubes 22, two extension rods 23, and two clamping plates 24. The first support frame 21 is fixedly installed on the top of the base plate 1. One of the rotating tubes 22 is rotatably connected to one end of the inner side of the first support frame 21, and the other rotating tube 22 is fixedly installed at the output end of the feeding motor 3. The two extension rods 23 are slidably connected to the inside of the opposite ends of the two rotating tubes 22, and the two clamping plates 24 are fixedly installed at the opposite ends of the two extension rods 23.

[0022] The rotating tube 22 has a hollow interior, and both the extension rod 23 and the inner surface of the rotating tube 22 are provided with planes for limiting movement. This allows the rotating tube 22 to drive the extension rod 23 to rotate synchronously during use. Anti-slip pads are fixedly installed on opposite sides of the two clamping plates 24. During use, the anti-slip pads adhere to both ends of the heat shrink tube shaft, increasing the friction between the clamping plates 24 and the heat shrink tube shaft, thereby improving the stability of material feeding.

[0023] The feeding assembly 2 also includes a clamping motor 27, a bidirectional threaded rod 26, and a moving plate 25. The clamping motor 27 is fixedly installed at one end of the first support frame 21. The bidirectional threaded rod 26 is fixedly installed at the output end of the clamping motor 27. The two moving plates 25 are respectively threaded to the two ends of the outer side of the bidirectional threaded rod 26. The tops of the two moving plates 25 are respectively rotatably connected to the outer side of the two extension rods 23.

[0024] The bottom of the movable plate 25 is attached to the bottom of the inner side of the first support frame 21. When in use, the two-way threaded rod 26 and the movable plate 25 are threadedly connected, which allows the bottom of the movable plate 25 to slide on the bottom of the inner side of the first support frame 21, thereby limiting the movable plate 25 and increasing the stability of the movable plate 25 when it moves.

[0025] The material conveying assembly 6 includes a third support frame 61, a material conveying motor 62, and a material conveying roller 63. The third support frame 61 is fixedly installed at the other end of the top of the base plate 1, the material conveying motor 62 is fixedly installed at one end of the third support frame 61, and the material conveying roller 63 is fixedly installed at the output end of the material conveying motor 62.

[0026] The top of the feeding roller 63 is provided with a pressing assembly 7. The pressing assembly 7 includes a movable frame 71, a pressing roller 72 and a threaded rod 73. The movable frame 71 is slidably connected to the inner side of the third support frame 61. The pressing roller 72 is disposed on the inner side of the movable frame 71. The bottom of the threaded rod 73 is rotatably connected to the top of the movable frame 71. The threaded rod 73 is also threadedly connected to the inside of the top of the third support frame 61.

[0027] The two ends of the movable frame 71 are respectively attached to the two ends of the inner side of the third support frame 61. In this way, when in use, the movable frame 71 can be limited and the stability of the movable frame 71 when it moves is increased.

[0028] A controller 5 is fixedly installed on the top of the base plate 1. The controller 5 is electrically connected to the feeding motor 3, the pressure sensor 45 and the conveying motor 62 respectively.

[0029] The working principle of the electronic wire harness heat shrink tubing feeding device with closed-loop tension control provided by this utility model is as follows: In use, first place the heat shrink tubing roll between the two clamping plates 24, start the clamping motor 27, the clamping motor 27 drives the bidirectional threaded rod 26 to rotate, the bidirectional threaded rod 26 drives the two moving plates 25 to move relative to each other, the moving plates 25 drive the extension rod 23 to slide in the rotating tube 22, thereby bringing the two clamping plates 24 closer to each other and clamping and fixing the heat shrink tubing roll. Next, one end of the heat shrink tubing is wrapped around the tension roller 44 and passed between the feed roller 63 and the pressure roller 72. Rotating the threaded rod 73 causes the moving frame 71 to move up and down, thereby adjusting the distance between the pressure roller 72 and the feed roller 63, so that the pressure roller 72 presses the heat shrink tubing tightly onto the feed roller 63. Then, start the feeding motor 3 and the conveying motor 62. The feeding motor 3 drives the rotating tube 22 to rotate, which in turn drives the heat shrink tube roll to rotate for feeding. The conveying motor 62 drives the conveying roller 63 to rotate, which, together with the pressure roller 72, conveys the heat shrink tube forward. During the conveying process, the tension of the heat shrink tubing causes the tension roller 44 to move up and down. The tension roller 44 drives the moving block 43 to slide within the chute 42, and the moving block 43 exerts pressure on the pressure sensor 45. The pressure sensor 45 transmits the detected pressure signal to the controller 5. The controller 5 controls the tension of the heat shrink tubing by adjusting the speed of the feeding motor 3 and the conveying motor 62 according to the preset tension range. When the tension is too high, the controller 5 controls the feeding motor 3 to accelerate the feeding, while simultaneously controlling the conveying motor 62 to decelerate the conveying to reduce the tension. When the tension is too low, the controller 5 controls the feeding motor 3 to decelerate the feeding, while simultaneously controlling the conveying motor 62 to accelerate the conveying to increase the tension, thereby achieving closed-loop tension control.

[0030] Compared with related technologies, the electronic wire harness heat shrink tubing feeding device with closed-loop tension control provided by this utility model has the following beneficial effects: The material feeding assembly 2, tension sensing assembly 4, and material conveying assembly 6 work together to ensure that during use, the tension roller 44 in the tension sensing assembly 4 moves up and down with the tension of the heat shrink tubing. The pressure signal generated by the pressure sensor 45 on the moving block 43 is transmitted to the controller 5 in real time. The controller 5 then dynamically adjusts the tension of the heat shrink tubing by adjusting the speed of the material feeding motor 3 and the material conveying motor 62 according to the preset tension range. This not only avoids heat shrink tubing breakage, reduces material waste, and ensures the continuity of the production process, but also improves the quality of subsequent processing and meets the requirements of high-precision processing.

[0031] Second Embodiment

[0032] Please refer to the following: Figure 5 Based on the first embodiment of this application which provides a feeding device for electronic wire harness heat shrink tubing with closed-loop tension control, the second embodiment of this application proposes another feeding device for electronic wire harness heat shrink tubing with closed-loop tension control. The second embodiment is merely a preferred embodiment of the first embodiment, and the implementation of the second embodiment will not affect the separate implementation of the first embodiment.

[0033] Specifically, the second embodiment of this application provides a different electronic wire harness heat shrink tubing feeding device with closed-loop tension control. In this device, the moving frame 71 has moving grooves 8 on both sides. A slide rod 9 is fixedly installed on the inner side of the moving groove 8. A slider 92 is slidably connected to the outer side of the slide rod 9. A spring 91 is provided on the top of the slider 92. The slider 92 is rotatably connected to the end face of the pressure roller 72.

[0034] Spring 91 is sleeved on the outer side of slider 9. When in use, the elasticity of spring 91 always pushes slider 92 downward.

[0035] The working principle of the electronic wire harness heat shrink tubing feeding device with closed-loop tension control provided by this utility model is as follows: When conveying heat shrink tubing, if the diameter of the heat shrink tubing changes slightly or it is subjected to a slight impact during conveying, the pressure roller 72 will be subjected to a corresponding force. The pressure roller 72 drives the slider 92 to slide on the slide bar 9. The slider 92 squeezes the spring 91, and the elastic force of the spring 91 will generate a reverse buffering force on the pressure roller 72, so that the pressure roller 72 can automatically adapt to the slight changes of the heat shrink tubing, maintain stable pressure on the heat shrink tubing, and avoid unstable feeding due to changes in the diameter of the heat shrink tubing or impact.

[0036] Compared with related technologies, the electronic wire harness heat shrink tubing feeding device with closed-loop tension control provided by this utility model has the following beneficial effects: By setting a moving groove 8, a sliding rod 9, a slider 92, and a spring 91 on the moving frame 71, the pressure roller 72 has a certain buffering and adjustment capability. When there are slight differences in the diameter of the heat shrink tubing or when it is subjected to slight impact during transportation, the spring 91 can play a buffering role, ensuring that the pressure roller 72 always applies appropriate pressure to the heat shrink tubing, further improving the stability and reliability of feeding, and reducing problems such as heat shrink tubing damage or feeding deviation caused by unstable pressure.

[0037] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A feeding device for heat shrink tubing of electronic wire harnesses with closed-loop tension control, characterized in that, include: Base plate; A feeding assembly is disposed on the top of the base plate; A feeding motor is disposed at one end of the feeding assembly; A tension sensing assembly is disposed on the top of the base plate. The tension sensing assembly includes a second support frame, two slide grooves, two moving blocks, a tension roller, and two pressure sensors. The second support frame is fixedly installed on the top of the base plate. The two slide grooves are respectively opened at both ends of the second support frame. The two moving blocks are slidably connected to the inner sides of the two slide grooves. The two ends of the tension roller are rotatably connected to one side of the two moving blocks. The two pressure sensors are respectively fixedly installed at the bottom of the inner sides of the two slide grooves. A material conveying assembly is fixedly installed at the other end of the top of the base plate.

2. The electronic wire harness heat shrink tubing feeding device with closed-loop tension control according to claim 1, characterized in that, The feeding assembly includes a first support frame, two rotating tubes, two extension rods, and two clamping plates. The first support frame is fixedly installed on the top of the base plate. One of the rotating tubes is rotatably connected to one end of the inner side of the first support frame, and the other rotating tube is fixedly installed at the output end of the feeding motor. The two extension rods are slidably connected to the interior of the opposite ends of the two rotating tubes, and the two clamping plates are fixedly installed at the opposite ends of the two extension rods.

3. The electronic wire harness heat shrink tubing feeding device with closed-loop tension control according to claim 2, characterized in that, The feeding assembly also includes a clamping motor, a bidirectional threaded rod, and a moving plate. The clamping motor is fixedly installed at one end of the first support frame, the bidirectional threaded rod is fixedly installed at the output end of the clamping motor, and the two moving plates are respectively threaded to the two ends of the outer side of the bidirectional threaded rod. The tops of the two moving plates are respectively rotatably connected to the outer side of the two extension rods.

4. The electronic wire harness heat shrink tubing feeding device with closed-loop tension control according to claim 3, characterized in that, The material conveying assembly includes a third support frame, a material conveying motor, and a material conveying roller. The third support frame is fixedly installed at the other end of the top of the base plate, the material conveying motor is fixedly installed at one end of the third support frame, and the material conveying roller is fixedly installed at the output end of the material conveying motor.

5. The electronic wire harness heat shrink tubing feeding device with closed-loop tension control according to claim 4, characterized in that, The top of the feeding roller is provided with a pressing assembly, which includes a movable frame, a pressing roller and a threaded rod. The movable frame is slidably connected to the inner side of the third support frame, the pressing roller is disposed on the inner side of the movable frame, the bottom of the threaded rod is rotatably connected to the top of the movable frame, and the threaded rod is also threadedly connected to the inside of the top of the third support frame.

6. The electronic wire harness heat shrink tubing feeding device with closed-loop tension control according to claim 4, characterized in that, A controller is fixedly installed on the top of the base plate, and the controller is electrically connected to the feeding motor, the pressure sensor and the conveying motor respectively.

7. The electronic wire harness heat shrink tubing feeding device with closed-loop tension control according to claim 5, characterized in that, The movable frame has movable slots on both sides. A sliding rod is fixedly installed on the inner side of the movable slot. A slider is slidably connected to the outer side of the sliding rod. A spring is provided on the top of the slider. The slider is rotatably connected to the end face of the pressure roller.

Images