Double-shaft weaving and winding system
The PLC controller and the drive mechanism are connected by hardwired wiring, and the communication delay problem of dual-axis braided winding equipment is solved, which improves the molding quality and the aesthetics of the braided texture.
Patent Information
- Application Number
- CN202422373686.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-28
- Publication Date
- 2025-05-27
- Estimated Expiration
- 2034-09-28
AI Technical Summary
In the prior art, when controlling the dual-axis braiding and winding equipment, communication delay results in unsightly braiding and poor molding quality. Especially when the wire collection speed is high, the tension adjustment mechanism responds slowly and difficult to debug process parameters.
The PLC controller and the drive mechanism, the drivers of the first servo motor and the second servo motor are connected by hard wiring, to reduce communication delay and improve the response speed of the spindle speed adjustment.
It effectively reduces the communication delay between the PLC controller and the driving mechanism, improves the quality of the braided carbon fiber raw wire, and ensures the aesthetics of the texture and the quality of the finished product.
Smart Images
Figure CN222907151U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of carbon fiber precursor braiding and winding equipment, and particularly relates to a double-axis braiding and winding system. Background Technique
[0002] Carbon fiber precursor is a long and thin continuous filamentous material made from specific polymers through a series of processes. Its diameter is very small, often only 5 to 10 micrometers, which is thinner than human hair. After multiple processes such as stretching, high-temperature graphitization, and carbonization, the carbon fiber precursor is made into carbon fiber. The precursor has advantages such as softness and high gloss. However, due to its smoothness, the situation of yarn dragging is likely to occur. During the winding process, the cooperation between the main shaft and the wire arranging shaft is required to braid certain patterns, increasing the friction between the filaments to prevent the occurrence of yarn dragging. The existing control conducts Modbus communication through a controller, respectively controlling the speeds of the main shaft and the wire arranging shaft to achieve the coordinated movement of the two axes. However, there is a communication delay, especially for the processing of such large amounts of data as the running speed, lacking in efficiency, and the situation of untimely data transmission will occur, resulting in unbeautiful braided patterns, affecting the forming. When the wire collecting speed is relatively high, the tension regulating mechanism cannot respond in a timely manner, and it is also very difficult to debug the process parameters. The precursor is mainly used to carbonize into carbon filaments for processing into products. During transportation, the poorly formed filaments are likely to cause situations such as yarn dragging.
[0003] Therefore, the applicant has made beneficial explorations and attempts and found a solution to the above problems. The technical solution to be introduced below was generated under this background. Content of the Utility Model
[0004] The utility model mainly solves the technical problems existing in the above-mentioned prior art and provides a double-axis braiding and winding system.
[0005] The above technical problems of the utility model are mainly solved by the following technical solution: A double-axis braiding and winding system includes a mounting plate. On one side of the mounting plate, a main shaft and a wire arranging shaft are arranged in parallel. On the other side of the mounting plate, a driving mechanism is provided. The driving mechanism includes a first servo motor and a second servo motor. The first servo motor is used to drive the main shaft, and the second servo motor is used to drive the wire arranging shaft.
[0006] Preferably, a bracket is fixed at the position of the wire arranging shaft on the mounting plate. The wire arranging shaft is rotatably installed on the bracket, and an auxiliary shaft is rotatably installed on the bracket. The auxiliary shaft is arranged in parallel with the wire arranging shaft and is located on one side of the wire arranging shaft.
[0007] Preferably, a reduction gear set is connected between the main shaft and the first servo motor.
[0008] Preferably, the first servo motor and the second servo motor are electrically connected.
[0009] The beneficial effects of the present utility model are as follows:
[0010] Compared with the prior art, in the present utility model, the PLC controller and the driving mechanism are electrically connected by hard wiring, and the drivers of the first servo motor and the second servo motor of the driving mechanism are electrically connected by hard wiring. This can reduce the communication delay between the PLC controller, the first servo motor, and the second servo motor, enabling the PLC to issue control commands in a timely manner according to the operating speeds of the main shaft and the wire arranging shaft, improving the response speed of the main shaft speed adjustment, and further improving the forming quality of the woven carbon fiber raw yarn. Description of the Drawings
[0011] Figure 1 is the control flow chart of the present utility model;
[0012] Figure 2 is the structural schematic diagram of the present utility model.
[0013] In the figure: 1, mounting plate; 2, main shaft; 3, wire arranging shaft; 4, driving mechanism; 5, first servo motor; 6, second servo motor; 7, bracket; 8, auxiliary shaft; 9, reduction gear set. Detailed Embodiment
[0014] Next, through embodiments, and in combination with the attached Figure 1 - Figure 2 structure shown, the technical solution of the present utility model will be further specifically described.
[0015] Embodiment: A dual-axis weaving and winding system includes a mounting plate 1. A main shaft 2 and a wire arranging shaft 3 are arranged in parallel on one side of the mounting plate 1, and a driving mechanism 4 is arranged on the other side of the mounting plate 1. The driving mechanism 4 includes a first servo motor 5 for driving the main shaft 2 to rotate and a second servo motor 6 for driving the wire arranging shaft 3 to rotate.
[0016] Specifically, both the first servo motor 5 and the second servo motor 6 are connected to the PLC controller by hard wiring, and the drivers of the first servo motor 5 and the second servo motor 6 are electrically connected by hard wiring. A reduction gear set 9 for deceleration is arranged between the output shaft of the first servo motor 5 and one end of the main shaft 2; during use, a tension mechanism for maintaining the tension of the carbon fiber raw yarn is installed on the main shaft 2; a bracket 7 is fixed at the position of the wire arranging shaft 3 on the mounting plate 1, the wire arranging shaft 3 is rotatably connected to the bracket 7, and one end of the wire arranging shaft 3 is coaxially fixed to the output shaft of the second servo motor 6; an auxiliary shaft 8 is rotatably installed on the bracket 7. The auxiliary shaft 8 is arranged in parallel with the wire arranging shaft 3 and on one side of the wire arranging shaft 3. The auxiliary shaft 8 is used to provide pressure to the wire feeding surface after the carbon fiber raw yarn is wound on the wire arranging shaft 3, thereby improving the forming effect.
[0017] The control methods of the first servo motor 5 and the second servo motor 6 are as follows:
[0018] (1) Position control command = numerator of electronic gear ratio * input command / denominator of electronic gear ratio = encoder resolution * input command / number of unit commands required for one revolution of the motor;
[0019] (2) Spindle motor speed = current output pulses of the spindle / number of output pulses per revolution of the spindle;
[0020] (3) Winding shaft speed = 2 * running distance of the winding shaft * spindle speed / winding ratio = current output pulses of the spindle * frequency multiplication of the winding shaft / number of pulses required for one revolution of the winding shaft;
[0021] According to the above formula (1), when the numerator of the electronic gear ratio is set to the encoder resolution and the denominator of the electronic gear ratio is set to set the speed of the servo motion, during the winding process of the yarn, the winding ratio is fixed within a certain period. Therefore, as long as the instructions of the PLC controller can be transmitted in a timely and effective manner, the speed of the winding shaft 3 can respond quickly. According to the above formula (3), the "input command" in this scenario is the current number of output pulses of the spindle 2, and the number of pulses of the spindle 2 can be quickly transmitted to the servo driver of the winding shaft 3 through hard wiring, so as to realize the synchronous linkage of the spindle 2 and the winding shaft 3.
[0022] Working principle of the present utility model:
[0023] During use, the previous process transmits the raw silk speed to the PLC controller. The PLC controller transmits the speed to the servo driver of the spindle 2 through analog quantity. The servo driver of the spindle 2 controls the speed of the spindle 2. The main controller adjusts the speed of the spindle 2 according to the tension mechanism. When the winding speed is high, the tension mechanism changes frequently, and the spindle 2 needs to have a faster response speed. By controlling the servo driver of the spindle 2 through analog quantity, the response speed can be improved, and higher-speed winding can be accepted. The number of pulses output by the spindle 2 servo is input to the pulse command input of the winding shaft 3 through hard wiring, and the speed of the winding shaft 3 changes according to the number of pulses output by the spindle 2. The winding ratio refers to the number of turns wound by the spindle 2 when the winding shaft 3 reciprocates once. The movement of the winding shaft 3 and the movement of the spindle 2 run in real time according to the set winding ratio to ensure that the yarn does not overlap during the winding process. The auxiliary shaft 8 provides pressure to the yarn on the winding shaft 3 during the yarn winding process to ensure the uniform distribution and good appearance of the yarn. Finally, it should be noted that the above embodiments are only relatively representative examples of the present utility model. Obviously, the present utility model is not limited to the above embodiments and can have many variations. Any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present utility model should be considered to fall within the protection scope of the present utility model.
Claims
1. A biaxial braiding winding system, characterized in that: The invention comprises a mounting plate (1), wherein a main shaft (2) and a cable arranging shaft (3) are arranged in parallel on one side of the mounting plate (1), and a driving mechanism (4) is arranged on the other side of the mounting plate (1), wherein the driving mechanism (4) comprises a first servo motor (5) and a second servo motor (6), wherein the first servo motor (5) is used to drive the main shaft (2), and the second servo motor (6) is used to drive the cable arranging shaft (3).
2. A biaxial braiding winding system according to claim 1, characterized in that: A bracket (7) is fixed at a position where the cable arrangement shaft (3) is provided on the mounting plate (1); the cable arrangement shaft (3) is rotatably mounted on the bracket (7); an auxiliary shaft (8) is rotatably mounted on the bracket (7); the auxiliary shaft (8) is parallel to the cable arrangement shaft (3) and is located on one side of the cable arrangement shaft (3).
3. A biaxial braiding winding system according to claim 1, characterized in that: A reduction gear set (9) is connected between the main shaft (2) and the first servo motor (5).
4. A biaxial braiding winding system according to claim 1, characterized in that: The first servo motor (5) and the second servo motor (6) are electrically connected.