carbon fiber spool sleeve

Abstract

This utility model discloses a carbon fiber spool thread-stopping bushing, belonging to the field of carbon fiber spool winding technology. It includes bushings fitted opposite each other on both sides of a spool core. Each bushing has evenly distributed adjusting pins along its circumference, with the center of each adjusting pin recessed inwards. This utility model uses the aforementioned carbon fiber spool thread-stopping bushing with a centrally recessed arc-shaped adjusting pin design to optimize stress distribution, reduce the risk of thread derailment, ensure processing accuracy, and achieve flexible adjustment at multiple angles.

Description

Technical Field

[0001] This utility model belongs to the field of carbon fiber shaft winding technology, specifically relating to carbon fiber shaft wire stop bushing. Background Technology

[0002] Carbon fiber spool sleeves are tools used to fix and guide carbon fiber filaments, commonly used in the winding process of carbon fiber composite manufacturing. However, traditional spool sleeves lack an effective limiting mechanism, making them prone to slippage relative to the spool core. Furthermore, due to the lack of a stable fixing method, carbon fiber filaments are easily detached during winding, affecting product quality and production efficiency. Moreover, existing designs cannot easily adjust the angle of the carbon fiber filaments, limiting their application range and technical flexibility. Therefore, a new technology is urgently needed. Summary of the Invention

[0003] The purpose of this invention is to provide a carbon fiber spool sleeve with a concave arc-shaped adjusting pin in the middle, which optimizes stress distribution, reduces the risk of spool derailment, ensures processing accuracy, and enables flexible adjustment at multiple angles.

[0004] To achieve the above objectives, this utility model provides a carbon fiber spool sleeve, comprising sleeves fitted on both sides of the spool core, wherein each sleeve is uniformly provided with adjusting pins in the circumferential direction, and the center of each adjusting pin is recessed inward.

[0005] Preferably, each bushing is also symmetrically provided with a limiting device, which includes a sliding block, one end of which is fixedly provided with a first spring connecting block, the bottom of which is connected with a spring, and the bottom of which is connected with a second spring connecting block.

[0006] Preferably, the limiting devices are symmetrically arranged on both sides of the central shaft of the bushing. The bottom surface of the second spring connecting block in the limiting device is curved, and the height of the side of the second spring away from the pressing block is lower than the height of the side close to the pressing block.

[0007] Preferably, the bushing is provided with an opening groove, the first spring connecting block, the spring, and the second spring connecting block are all disposed in the opening groove, the sliding block is disposed in the opening groove, and the sliding block is fixedly connected to the first spring connecting block.

[0008] Preferably, the limiting device further includes a pressing block, which is disposed on one end face of the sliding block and away from the first spring connecting block, and the size of the opening of the slot is smaller than the size of the inside of the slot.

[0009] Preferably, the size of the sliding block corresponds to the size of the opening of the slot, and the size inside the slot is the same as the size of the first spring connecting block.

[0010] Preferably, the adjusting pin and the bushing surface are coated.

[0011] Therefore, compared with the prior art, the present invention, by adopting the aforementioned carbon fiber spool sleeve, has the following significant advantages:

[0012] (1) This utility model effectively prevents the bushing from sliding relative to the shaft core through the limiting device, thus ensuring stability during operation;

[0013] (2) The recessed design of this utility model reduces the risk of thread breakage and improves product quality;

[0014] (3) By adjusting the rotation speed of the shaft core, the carbon fiber filament can be hung on different adjusting pins, thus realizing flexible angle adjustment and increasing the flexibility and technical feasibility of the application.

[0015] The technical solution of this utility model will be further described in detail below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the carbon fiber shaft guide sleeve of this utility model;

[0017] Figure 2 This is a partial structural schematic diagram of the carbon fiber shaft guide sleeve of this utility model;

[0018] Figure 3 This is a partial structural diagram of the limiting device for the carbon fiber shaft guide sleeve of this utility model;

[0019] Figure 4 This is a front view of the carbon fiber shaft guide sleeve of this utility model;

[0020] Figure 5 This is a schematic diagram of the opening groove of the carbon fiber shaft guide sleeve of this utility model.

[0021] Figure Labels

[0022] 1. Bushing; 2. Opening groove; 3. Center hole; 4. Adjusting pin; 5. Recess; 6. Limiting device; 7. Pressing block; 8. First spring connecting block; 9. Spring; 10. Second spring connecting block; 11. Sliding block; 12. Shaft core. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. Unless otherwise defined, the technical or scientific terms used in this utility model should have the ordinary meaning understood by those skilled in the art.

[0024] Example 1

[0025] like Figures 1-5 As shown, the carbon fiber shaft guide sleeve of this utility model includes shaft sleeves 1 that are fitted onto both sides of the shaft core 12, and adjusting pins 4 are fixed to the shaft sleeves 1 by an interference fit. Each shaft sleeve 1 has a plurality of adjusting pins 4 evenly distributed on its circumference, and the center of these pins is recessed inward to form a groove 5. A top hole 3 is provided on the extension of one end of the shaft core 12, and the extension of the other end of the shaft core 12 is connected to the output shaft of the motor through a three-jaw chuck. The clamping action of the three-jaw chuck provides sufficient torque transmission, enabling the shaft core 12 to effectively transmit the power of the motor.

[0026] Each bushing 1 is symmetrically provided with a limiting device 6. The limiting device 6 includes a pressing block 7, a sliding block 11 is fixedly provided at one end of the pressing block 7, a first spring connecting block 8 is fixedly provided at one end of the sliding block 11, a spring 9 is connected to the bottom of the first spring connecting block 8, and a second spring connecting block 10 is connected to the bottom of the spring 9. The limiting device 6 helps to firmly fix the bushing 1 on the shaft core 12 and prevents them from sliding relative to each other.

[0027] The bottom surface of the second spring connecting block 10 is curved, so that the height of the side away from the pressing block 7 is lower than the height of the side close to the pressing block 7. This design facilitates the passage of the shaft core 12 through the bushing 1, and further fixes the position of the shaft core 12 by the elastic force of the spring 9 when it is in the appropriate position. Since the bottoms of the second spring connecting block 10 are not on the same horizontal plane, when the shaft core 12 is passed through the bushing 1, the spring 9 is compressed; when the shaft core 12 moves to the appropriate position, the spring 9 returns to its original length, further fixing the shaft core 12.

[0028] Limiting devices 6 are symmetrically arranged on both sides of the central shaft of bushing 1. Bushing 1 has an opening groove 2 for accommodating the first spring connecting block 8, the spring 9, and the second spring connecting block 10. A pressing block 7 is located outside the opening groove 2, and a sliding block 11 is located within the opening groove 2. At the opening of the opening groove 2, the pressing block 7 and the sliding block 11 can move the first spring connecting block 8 and the second spring connecting block 10. The size of the sliding block 11 corresponds to the size of the opening of the opening groove 2, and the internal size of the opening groove 2 is the same as the size of the first spring connecting block 8. The size of the opening of the opening groove 2 is smaller than the internal size of the opening groove 2 to ensure that the sliding block 11 will not fall off.

[0029] The adjusting pin 4 and the bushing 1 are coated with polyurethane or polytetrafluoroethylene to prevent corrosion of the device.

[0030] During installation, first, place the bushing 1 on both sides of the shaft core 12, then place the shaft core 12 on the mounting base. Insert a center into the center through-hole 3 of the extension at one end of the shaft core 12. This arrangement ensures that the shaft core 12 can be stably held in position and rotate stably during operation. Connect the extension at the other end of the shaft core 12 to the output shaft of the motor via a three-jaw chuck. When the motor starts, power is transmitted to the shaft core 12 through the motor's output shaft, causing it to rotate.

[0031] In use, first ensure that the bushing 1 is correctly installed on both sides of the shaft core 12 and is securely fixed by the limiting device 6. Multiple adjusting pins 4 are evenly distributed on the circumferential direction of each bushing 1. These pins are recessed inward to form a groove 5. Then, select the appropriate adjusting pin 4 according to the process requirements, pull the carbon fiber filament from the starting position to the selected adjusting pin 4, and embed it into the groove 5 in the middle of the pin.

[0032] This step ensures the carbon fiber filament is stably fixed in a specific position. Then, by adjusting the motor speed, the rotational speed of the shaft 12 is changed, allowing the carbon fiber filament to move and be fixed between the adjusting pins 4 at different positions. For example, a faster speed brings the carbon fiber filament closer to one end of the shaft sleeve 1, while a slower speed brings it closer to the other end, thus achieving different winding angles. If a more complex winding path or angle is required, the position of the carbon fiber filament can be switched between multiple adjusting pins 4 to achieve the desired winding effect. This can be achieved by precisely controlling the motor speed, ensuring that the carbon fiber filament is accurately fixed at the desired angle each time.

[0033] Therefore, this utility model adopts the above-mentioned carbon fiber spool sleeve, which features a central concave arc-shaped adjusting pin design to optimize stress distribution, reduce the risk of wire derailment, ensure processing accuracy, and achieve flexible adjustment at multiple angles.

[0034] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and not to limit it. Although the utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to the technical solution of this utility model, and these modifications or equivalent substitutions cannot cause the modified technical solution to deviate from the spirit and scope of the technical solution of this utility model.

Claims

1. A carbon fiber spool sleeve for preventing wire guide, characterized in that, It includes bushings that are fitted onto both sides of the shaft core, and each bushing is provided with adjusting pins evenly distributed in the circumferential direction, with the middle of the adjusting pins being recessed inward. Each bushing is also symmetrically provided with a limiting device, which includes a sliding block. One end of the sliding block is fixedly provided with a first spring connecting block, the bottom of the first spring connecting block is connected with a spring, and the bottom of the spring is connected with a second spring connecting block. The bushing is provided with an opening groove, and the first spring connecting block, the spring, and the second spring connecting block are all provided in the opening groove. The sliding block is fixedly connected to the first spring connecting block, and the pressing block is provided on the end face of the sliding block away from the first spring connecting block. A spring is connected to the bottom of the first spring connecting block, and a second spring connecting block is connected to the bottom of the spring. The bottom surface of the second spring connecting block is curved, and the height of the side of the second spring connecting block away from the pressing block is lower than the height of the side closer to the pressing block. The opening size of the slot is smaller than the internal size of the slot body, the size of the sliding block corresponds to the opening size of the slot, and the internal size of the slot is the same as the size of the first spring connecting block.

2. The carbon fiber spool sleeve according to claim 1, characterized in that, The adjusting pin and the bushing are coated.

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