Automatic tension adjusting device of monofilament broadening machine

Abstract

The utility model discloses an automatic tension adjusting device of a monofilament broadening machine, which comprises a rotating shaft, a detector and a rotating roller which are arranged on a device shell, an adjusting roller is arranged on the rotating shaft, and the detector is used for detecting the tension of a carbon fiber monofilament and adjusting the rotating speed of the rotating roller. The adjusting roller is used for reflecting the tension of the carbon fiber monofilament, the rotating shaft is further provided with a connecting rod used for making contact with the detector and being connected with the adjusting roller, the connecting rod makes contact with the detector, a numerical control mechanism is arranged in the device shell, and the numerical control mechanism is connected with the rotating shaft and the detector. The numerical control mechanism comprises a tachometer arranged in the device shell. According to the automatic tension adjusting device of the monofilament broadening machine, the tension state of the monofilament can be mastered in real time by accurately detecting the tension of the carbon fiber monofilament through the detector, and an accurate basis is provided for subsequent adjustment.

Description

Technical Field

[0001] This utility model relates to the field of carbon fiber production technology, specifically to an automatic tension adjustment device for a monofilament stretching machine. Background Technology

[0002] Carbon fiber production involves two key steps: raw material preparation and spinning. In terms of raw materials, PAN-based carbon fiber uses high-quality PAN polymer, while pitch-based carbon fiber uses refined pitch. During spinning, PAN-based carbon fiber can be spun in two ways: solution spinning (PAN is dissolved in a solvent to make a solution, which is then extruded through a spinneret and solidified in a coagulation bath) and melt spinning (high-temperature melt extrusion and cooling). Pitch-based carbon fiber mainly uses melt spinning (extrusion and cooling solidification above the softening point of pitch). During the spinning process, factors such as the draw ratio and spinneret parameters will affect the diameter and performance of the fiber. All aspects are interconnected and determine the quality of carbon fiber.

[0003] According to the utility model disclosed in CN202359435U, an automatic tension adjustment device for a rope twisting machine is provided. The main shaft is connected to the rotating arm, and the main shaft drives the rotating arm to rotate. The rotating wheel is movably installed in the slot of the rotating arm through a pin. Springs are symmetrically arranged on both sides of the rotating wheel and connected between the pin of the rotating wheel and the rotating arm. This utility model can automatically adjust the tension in each strand of the rope, enhance the safety factor of the rope, and has a simple structure, stable and reliable operation, and convenient operation.

[0004] The automatic tension adjustment device of this rope twisting machine can only be controlled according to the tension of the carbon fiber monofilament during operation, and cannot be manually adjusted. This design makes the tension adjustment device inflexible in use, thus affecting the production efficiency of carbon fiber monofilament and resulting in an excessively low tension adjustment rate. Utility Model Content

[0005] The purpose of this invention is to provide an automatic tension adjustment device for a monofilament stretching machine to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an automatic tension adjustment device for a monofilament stretching machine, characterized in that it includes: a rotating shaft, a detector, and a rotating roller disposed on the outer casing of the device;

[0007] The rotating shaft is equipped with an adjusting roller, and the detector is used to detect the tension of the carbon fiber monofilament and adjust the rotation speed of the rotating roller. The adjusting roller is used to reflect the tension of the carbon fiber monofilament.

[0008] Preferably, the rotating shaft is further provided with a connecting rod for contacting the detector and connecting the adjusting roller, and the connecting rod is in contact with the detector.

[0009] Preferably, the housing of the device is provided with a numerical control mechanism, which is connected to the rotating shaft and the detector.

[0010] Preferably, the CNC mechanism includes a tachometer disposed in the housing of the device, the tachometer being provided with a first transmission gear and a second transmission gear, the first transmission gear and the second transmission gear meshing with each other, and the first transmission gear being connected to the rotating shaft.

[0011] Preferably, the outer casing of the device is further provided with a rotating roller and a guide roller, and the connecting end of the rotating roller is provided with a transmission mechanism.

[0012] Preferably, the transmission mechanism includes a motor and a connecting shaft disposed in the housing of the device, the output end of the motor is in contact with a transmission gear, and the transmission gear is disposed on the connecting shaft.

[0013] Preferably, there are at least five transmission gears, all of which are arranged in a three-upper-two-lower configuration within the housing of the device, and all of the transmission gears mesh with each other vertically.

[0014] Preferably, the outer casing of the device is disposed on a base.

[0015] Compared with the prior art, the beneficial effects of this utility model are: the automatic tension adjustment device of the monofilament stretching machine can accurately detect the tension of the carbon fiber monofilament through the detector, and can grasp the tension state of the monofilament in real time, providing an accurate basis for subsequent adjustments.

[0016] The automatic tension adjustment device of this monofilament stretching machine, while reflecting the tension of the monofilament, can flexibly adjust its position according to the tension changes under the action of the rotating shaft and connecting rod, effectively balancing the monofilament tension and avoiding monofilament quality problems caused by uneven tension, such as breakage or loosening affecting the stretching effect, etc., which greatly improves the processing accuracy and stability of the monofilament.

[0017] The automatic tension adjustment device of this monofilament stretching machine has a CNC mechanism in the outer shell connected to the rotating shaft and detector. With the help of the coordinated operation of the tachometer, the first transmission gear and the second transmission gear, it can accurately control the speed of the rotating roller according to the tension monitoring data, realize the automatic and intelligent adjustment of the monofilament tension, not only reduce the error and cost of manual intervention, but also significantly improve production efficiency.

[0018] The automatic tension adjustment device of this monofilament stretching machine, along with the multiple transmission gears (at least five, arranged in a three-upper-two-lower configuration and meshing with each other) on the motor and connecting shaft in the transmission mechanism, ensures stable and coordinated transmission between the rollers, allowing the monofilament to run smoothly between the rollers. This further enhances the reliability and stability of the entire device, guarantees the long-term high-efficiency performance of the monofilament stretching machine, and lays a solid foundation for the production of high-quality monofilament products. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the internal structure of the device housing of this utility model.

[0021] In the diagram: 1. Base; 2. Device housing; 3. Rotating roller; 4. Guide roller; 5. Adjusting roller; 6. Carbon fiber monofilament; 7. Transmission mechanism; 8. CNC mechanism; 9. Rotating shaft; 71. Transmission gear; 72. Connecting shaft; 73. Motor; 81. First transmission gear; 82. Second transmission gear; 83. Tachometer; 91. Connecting rod; 92. Detector. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. 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.

[0023] Please see Figure 1-2This utility model provides a technical solution: an automatic tension adjustment device for a monofilament stretching machine, comprising: a rotating shaft 9, a detector 92, and a rotating roller 3 mounted on a device housing 2. The device housing 2 is mounted on a base 1, which is used to mount control systems and other mechanisms, ensuring that the remaining devices are installed on the same plane. The device housing 2 supports the remaining structures, ensuring that the remaining structures have a stable connection and are on the same plane. The rotating shaft 9 is equipped with an adjusting roller 5, which is used to drive the carbon fiber monofilament 6. When the carbon fiber monofilament 6 is too loosely wound on the guide roller 4, the rotating shaft 9 drives the adjusting roller 5 downward through a connecting rod 91, extending the distance between the two guide rollers 4, thereby tightening the carbon fiber monofilament 6 and adjusting and controlling the tension of the carbon fiber monofilament 6. The detector 92 is used to detect the tension of the carbon fiber monofilament 6. When the device is running autonomously, the detector 92 detects the tension of the carbon fiber monofilament 6 wound on the guide roller 4. The tension of the carbon fiber monofilament 6 is detected by the detector 92, and the data detected by the detector 92 is transmitted to the CNC mechanism 8. The device housing 2 is set on the base 1, which is used to support the rest of the device. The rotating shaft 9 is equipped with an adjusting roller 5, on which the carbon fiber monofilament 6 is sleeved. When moving up and down, the tension of the carbon fiber monofilament 6 is controlled. When the tension of the carbon fiber monofilament 6 is too tight, the rotating shaft 9 controls the connecting rod 91 to drive the adjusting roller 5 to move upward, thereby shortening the distance between the carbon fiber monofilament 6 and the guide roller 4. The detector 92 is used to detect the tension of the carbon fiber monofilament 6 and adjust the rotation speed of the rotating roller 3. There are two guide rollers 4, which are used to wind the carbon fiber monofilament 6 to ensure that the adjusting roller 5 can be sleeved by the carbon fiber monofilament 6. Then, according to the tension of the carbon fiber monofilament 6, the position of the adjusting roller 5 will change with the change of the tension of the carbon fiber monofilament 6. The adjusting roller 5 is used to reflect the tension of the carbon fiber monofilament 6, which is convenient for the detector 92 to detect.

[0024] The rotating shaft 9 is also equipped with a connecting rod 91 for contacting the detector 92. The connecting rod 91 contacts the detector 92, and the position of the adjusting roller 5 changes with the tension of the carbon fiber monofilament 6. The device housing 2 is equipped with a CNC mechanism 8, which controls the speed of the motor 73 to adjust the tension of the carbon fiber monofilament 6. The CNC mechanism 8 is connected to the rotating shaft 9 and the detector 92. The first transmission gear 81 and the second transmission gear 82 mesh. The data of the rotation of the second transmission gear 82 is transmitted to the tachometer 83. The tachometer 83 controls the speed of the motor 73 to adjust the tension of the carbon fiber monofilament 6. The CNC mechanism 8 includes a tachometer 83 located in the device housing 2. The tachometer 83 is equipped with a first transmission gear 81 and a second transmission gear 82. The first transmission gear 81 and the second transmission gear 82 mesh to ensure that the first transmission gear 81 drives the second transmission gear 82 to rotate synchronously. The first transmission gear 81 is connected to the rotating shaft 9.

[0025] The outer casing 2 of the device is also equipped with a rotating roller 3 and a guide roller 4. A transmission mechanism 7 is provided on the connecting end of the rotating roller 3. The transmission mechanism 7 includes a motor 73 and a connecting shaft 72 located within the outer casing 2. The motor 73 contains a motor gear that meshes with a transmission gear 71. The motor 73 drives the motor gear to rotate, which in turn drives the transmission gear 71. The output end of the motor 73 contacts the transmission gear 71, which is mounted on the connecting shaft 72. The motor 73 drives the motor gear to rotate, which in turn drives the transmission gear 71, which in turn drives the connecting shaft 72. 2. This drives the rotating roller 3 to rotate. There are seven connecting shafts 72, which are connected to the outer shell 2 of the device. The other end of two connecting shafts 72 is connected to the guide roller 4, and the other five connecting shafts 72 are connected to the rotating roller 3. In addition, the ends of the other five connecting shafts 72 are provided with transmission gears 71. There are at least five transmission gears 71. The number and installation position of the transmission gears 71 and the rotating roller 3 are the same as five. The rotating roller 3 is driven to rotate through the transmission gears 71. All the transmission gears 71 are arranged in the device shell 2 with three on top and two on the bottom, and all the transmission gears 71 are meshed with each other.

[0026] When the automatic tension adjustment device of the monofilament stretching machine is in use, the carbon fiber monofilament 6 is wound around the rotating roller 3 and the guide roller 4, and the adjusting roller 5 is also fitted with the monofilament. The detector 92 monitors the tension of the carbon fiber monofilament 6 in real time and transmits the data to the CNC mechanism 8. When the monofilament tension is too tight, the CNC mechanism 8 controls the rotating shaft 9 and the connecting rod 91 to move the adjusting roller 5 upward, shortening the distance between the monofilaments on the guide roller 4 to reduce the tension; if the tension is loose, the adjusting roller 5 moves downward to extend the winding distance and tighten the monofilament. At the same time, the first transmission gear 81 in the CNC mechanism 8 is connected to the rotating shaft 9, and it meshes with the second transmission gear 82. The rotation data of the second transmission gear 82 is transmitted to the tachometer 83, and the tachometer 83 controls the speed of the motor 73 according to the data. The motor gear in motor 73 meshes with the transmission gear 71. The transmission gear 71 drives the connecting shaft 72 to rotate the roller 3. The tension of the monofilament is changed by adjusting the speed of the roller 3. At least five transmission gears 71 are arranged in a three-upper-two-lower configuration and mesh with each other to ensure that each roller 3 works in coordination. This allows the entire device to accurately and automatically adjust the tension of the monofilament 6 according to the tension changes of the carbon fiber monofilament 6. By combining the adjustment of the position of the roller 5 with the control of the speed of the roller 3, the tension of the monofilament is effectively and stably adjusted, ensuring the smooth progress of the monofilament widening process and the reliable and stable quality of the product.

[0027] 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. An automatic tension adjustment device for a monofilament stretching machine, characterized in that, include: A rotating shaft (9), a detector (92), and a rotating roller (3) are mounted on the outer casing (2) of the device; The rotating shaft (9) is provided with an adjusting roller (5), the detector (92) is used to detect the tension of the carbon fiber monofilament (6), and adjust the rotation speed of the rotating roller (3). The adjusting roller (5) is used to reflect the tension of the carbon fiber monofilament (6).

2. The automatic tension adjustment device for a monofilament stretching machine according to claim 1, characterized in that: The rotating shaft (9) is also provided with a connecting rod (91) for contacting the detector (92) and connecting the adjusting roller (5), and the connecting rod (91) and the detector (92) are in contact.

3. The automatic tension adjustment device for a monofilament stretching machine according to claim 2, characterized in that: The housing (2) of the device is provided with a numerical control mechanism (8), which is connected to the rotating shaft (9) and the detector (92).

4. The automatic tension adjustment device for a monofilament stretching machine according to claim 3, characterized in that: The numerical control mechanism (8) includes a tachometer (83) disposed in the housing (2) of the device. The tachometer (83) is provided with a first transmission gear (81) and a second transmission gear (82). The first transmission gear (81) and the second transmission gear (82) mesh with each other. The first transmission gear (81) is connected to the rotating shaft (9).

5. The automatic tension adjustment device for a monofilament stretching machine according to claim 1, characterized in that: The outer casing (2) of the device is also provided with a rotating roller (3) and a guide roller (4), and a transmission mechanism (7) is provided on the connecting end of the rotating roller (3).

6. The automatic tension adjustment device for a monofilament stretching machine according to claim 5, characterized in that: The transmission mechanism (7) includes a motor (73) and a connecting shaft (72) disposed in the housing (2) of the device. The output end of the motor (73) is in contact with the transmission gear (71), and the transmission gear (71) is disposed on the connecting shaft (72).

7. The automatic tension adjustment device for a monofilament stretching machine according to claim 6, characterized in that: There are at least five transmission gears (71), and all of the transmission gears (71) are arranged in a three-upper-two-lower configuration in the housing (2) of the device, and all of the transmission gears (71) mesh with each other.

8. The automatic tension adjustment device for a monofilament stretching machine according to any one of claims 1-7, characterized in that: The outer casing (2) of the device is mounted on the base (1).

Images