Adjustable yarn guide for carbon fiber frame yarn cutting machine

Abstract

The utility model relates to yarn guide technical field discloses the adjustable yarn guide mechanism for carbon fiber frame yarn cutting machine, including the base for connecting upper end and side end part, the base upper end is provided with the suspension assembly for the suspension yarn base material, this assembly provides the initial material support and primary orientation for yarn transmission, the base one end is provided with the adjusting assembly for adjusting device tension, can adapt to the yarn tension demand under different working conditions, the middle part of adjusting assembly is provided with the yarn guide assembly for the yarn transmission, ensures that yarn can stably, regular transmission after tension adjustment, the whole structure design is reasonable, through the cooperation of each component, solves the yarn guide and tension adaptation problem in the carbon fiber frame yarn cutting process, promotes the stability and adaptability of yarn transmission.

Description

Technical Field

[0001] This utility model relates to the field of yarn guiding technology, specifically to an adjustable yarn guiding mechanism for a carbon fiber frame yarn cutting machine. Background Technology

[0002] In the field of carbon fiber frame processing, the yarn cutting machine is a key piece of equipment for cutting and shaping carbon fiber yarns. As the core supporting component of the yarn cutting machine, the performance of the yarn guiding mechanism directly determines the cutting accuracy, yarn utilization rate and processing stability.

[0003] However, most yarn guiding mechanisms adopt an integrated fixed structure. Existing guiding mechanisms mostly achieve coarse adjustment through simple spring structures, which cannot dynamically adjust the tension according to different specifications and batches of carbon fiber yarns. Excessive tension will directly break the yarn, causing material waste and process interruption. Insufficient tension will cause the yarn to sag and destroy the stability of the guiding path, which will also affect the cutting accuracy. Therefore, those skilled in the art provide an adjustable yarn guiding mechanism for carbon fiber frame yarn cutting machines to solve the problems mentioned in the background art. Utility Model Content

[0004] The purpose of this invention is to provide an adjustable yarn guiding mechanism for a carbon fiber frame yarn cutting machine, thereby solving the problems mentioned in the above-mentioned technology.

[0005] This utility model provides the following technical solution: an adjustable yarn guiding mechanism for a carbon fiber frame yarn cutting machine, including a base for connecting upper and side components, a suspension component for suspending yarn base material at the upper end of the base, an adjustment component for adjusting the tension of the adjustment device at one end of the base, and a yarn guiding component for conducting yarn in the middle of the adjustment component.

[0006] As a preferred embodiment of the above technical solution, the suspension assembly includes two first support columns and a first fixing column. The two first support columns are fixedly connected to the upper center of the base on one side. The upper ends of the two first support columns are rotatably connected to yarn base material. The first fixing column is fixedly connected to the upper end of the base near the yarn base material. A first yarn guide hole is penetratingly connected to the upper center of the first fixing column.

[0007] As a preferred embodiment of the above technical solution, the adjustment component includes a frame, which is fixedly connected to the side of the base. A first lead screw is rotatably connected to the center of the frame, and one end of the first lead screw passes through the inner cavity of the frame. An adjustment knob is fixedly connected to the end of the first lead screw that passes through the frame. A central column is fixedly connected to the center of the frame, and the inner cavity of the central column is rotatably connected to the first lead screw.

[0008] As a preferred embodiment of the above technical solution, a second fixing post is fixedly connected to one side of the upper end of the frame, a second yarn guide hole is connected through the center of the upper end of the second fixing post, and a second lead screw is rotatably connected to the upper end of the second fixing post.

[0009] As a preferred embodiment of the above technical solution, the yarn guiding assembly includes two sliding rods and a fixed rod. The upper ends of the two sliding rods are symmetrically slidably connected to the outer wall of the second lead screw, and the lower ends of the two sliding rods are symmetrically slidably connected to the outer wall of the first lead screw. The center of the inner cavity of the sliding rod is connected to the first yarn guiding wheel.

[0010] As a preferred embodiment of the above technical solution, the upper end of the fixing rod is fixedly connected to the outer wall of the second lead screw, and the lower end of the fixing rod is fixedly connected to the upper end of the central column. The center of the inner cavity of the fixing rod is connected to the second guide wheel.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: In view of the defects of the existing mechanism in lack of tension adjustment or coarseness, this utility model designs an linkage structure of adjustment knob, lead screw and sliding rod. By rotating the adjustment knob, the sliding rod can be driven to move along the lead screw axis, changing the winding length of the yarn between the guide wheels: the tension decreases when the sliding rod is close to the fixed rod and increases when it is far away. The optimal tension can be dynamically matched according to the carbon fiber yarns of different fineness and twist, which avoids the yarn breaking due to excessive tension and also prevents the yarn from loosening due to insufficient tension, thus greatly improving the reliability of yarn transmission. Attached Figure Description

[0012] Figure 1 A three-dimensional structural diagram of an adjustable yarn guiding mechanism used in a carbon fiber frame yarn cutting machine; Figure 2 A three-dimensional structural diagram of the suspension assembly of an adjustable yarn guide mechanism for a carbon fiber frame yarn cutting machine. Figure 3 A three-dimensional structural diagram of the adjustment component of the adjustable yarn guide mechanism used in a carbon fiber frame yarn cutting machine; Figure 4 This is a three-dimensional structural diagram of the yarn guiding assembly of an adjustable yarn guiding mechanism used in a carbon fiber frame yarn cutting machine.

[0013] In the diagram: 1. Base; 2. Suspension assembly; 201. First support column; 202. Yarn base material; 203. First fixing column; 204. First yarn guide hole; 3. Adjustment assembly; 301. Frame; 302. First lead screw; 303. Center column; 304. Adjustment knob; 305. Second fixing column; 306. Second yarn guide hole; 307. Second lead screw; 4. Yarn guide assembly; 401. Sliding rod; 402. First yarn guide wheel; 403. Fixing rod; 404. Second yarn guide wheel. Detailed Implementation

[0014] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0015] Please see Figures 1-4 As shown, this utility model provides a technical solution: an adjustable yarn guiding mechanism for a carbon fiber frame yarn cutting machine, including a base 1 for connecting the upper and side components, a suspension component 2 for suspending the yarn base material 202 at the upper end of the base 1, an adjustment component 3 for adjusting the tension of the device at one end of the base 1, and a yarn guiding component 4 for conducting the yarn in the middle of the adjustment component 3.

[0016] The base 1 serves as the foundation of the entire mechanism, undertaking the task of fixing and supporting all upper components. It ensures that the mechanism will not shift or tilt due to vibration or component stress during operation, which is the basis for ensuring the accuracy of yarn guidance. The suspension component 2 set on the base 1 realizes the suspension and initial guidance of the yarn base material 202, providing a regular initial yarn path for subsequent transmission and avoiding yarn entanglement or deviation from the source. The adjustment component 3 set at one end of the base 1 dynamically adjusts the yarn transmission tension according to the specifications of the carbon fiber yarn and the processing requirements of the yarn cutting machine, solving the pain point of tension that is not adjustable or is rough. The yarn guide component 4 on the adjustment component 3 receives the initial guided yarn from the suspension component 2. Under the drive of the adjustment component 3, the transmission path is adjusted and tension is matched, while reducing yarn wear and ensuring the integrity of the yarn structure.

[0017] As one implementation method in this embodiment, please refer to Figure 2 As shown, the suspension assembly 2 includes two first support columns 201 and a first fixing column 203. The two first support columns 201 are fixedly connected to the upper center of the base 1 near one side. The upper ends of the two first support columns 201 are rotatably connected to the yarn base material 202. The first fixing column 203 is fixedly connected to the upper end of the base 1 near the yarn base material 202. The upper center of the first fixing column 203 is connected through a first yarn guide hole 204.

[0018] The first support column 201 and the yarn base material 202 rotatably connected to the upper end ensure that the support column will not shake due to the weight of the yarn base material 202 or the pulling force during extraction, thus ensuring overall stability. The first fixed column 203 serves as the mounting carrier for the first yarn guide hole 204. Through its fixed position, it provides a stable limiting reference for the yarn guide hole, ensuring that the yarn guide hole is always on the preset path of yarn transmission and will not change position due to component loosening. The first yarn guide hole 204 achieves the initial guidance and straightening of the yarn. The yarn drawn from the yarn base material 202 may initially deviate slightly due to the rotation of the base material. However, after passing through the first yarn guide hole 204, the inner wall of the hole will restrict the lateral displacement of the yarn, forcing the yarn to be transmitted along the axial direction of the hole. This lays the foundation for the subsequent path of the yarn entering the double yarn guide wheel plus fixed yarn guide wheel of the yarn guide assembly 4, avoiding the failure of subsequent tension adjustment due to the chaos of the initial path.

[0019] As one implementation method in this embodiment, please refer to Figure 3 As shown, the adjustment assembly 3 includes a frame 301, which is fixedly connected to the side of the base 1. A first lead screw 302 is rotatably connected to the center of the frame 301, and one end of the first lead screw 302 passes through the inner cavity of the frame 301. An adjustment knob 304 is fixedly connected to the end of the first lead screw 302 that passes through the frame 301. A central column 303 is fixedly connected to the center of the frame 301, and the inner cavity of the central column 303 is rotatably connected to the first lead screw 302.

[0020] The frame 301 serves as the structural base of the adjustment assembly 3, supporting core components such as the first lead screw 302 and the central column 303. It provides a stable installation reference for the entire adjustment unit, ensuring that the positions of each component are relatively fixed during tension adjustment and preventing adjustment failure due to frame instability. The first lead screw 302 acts as a power transmission medium, converting the rotational motion of the adjustment knob 304 into the linear motion of the sliding rod 401. The thread on the surface of the lead screw is compatible with the threaded hole at the lower end of the sliding rod 401. When the lead screw rotates, the sliding rod 401 moves along the axial direction of the lead screw, thereby changing the winding length of the yarn between the guide wheels. It is a key transmission component for tension adjustment. The central column 303 ensures the coaxiality and stability of the rotation of the first lead screw 302. It limits the radial displacement of the lead screw through the intermediate support, ensuring accurate trajectory when the lead screw rotates. This allows the sliding rod 401 to move smoothly along the axial direction of the lead screw, achieving stable tension adjustment and preventing sudden changes in yarn tension due to lead screw wobbling, thus protecting the carbon fiber yarn from being broken by excessive instantaneous tension.

[0021] As one implementation method in this embodiment, please refer to Figure 3 As shown, a second fixing post 305 is fixedly connected to one side of the upper end of the frame 301. A second yarn guide hole 306 is connected through the center of the upper end of the second fixing post 305. A second lead screw 307 is rotatably connected to the upper end of the second fixing post 305.

[0022] The second fixed column 305 serves as the installation reference for the second yarn guide hole 306 and the second lead screw 307, stably fixing the two key components to the upper end of the adjusting assembly 3. This ensures that their positions are precisely aligned with the lower structure of the adjusting assembly 3, laying the foundation for subsequent upper and lower coordination. The second yarn guide hole 306 realizes secondary guidance and output limit of the yarn. Unlike the initial guidance of the first yarn guide hole 204 in the suspension assembly 2, the second yarn guide hole 306 is the final guide. The two form a closed-loop guide from the start point to the end point, ensuring that the yarn path is regular throughout, providing precise feeding for the yarn cutter, and improving the cutting accuracy. The second lead screw 307 provides upper constraint and synchronous guidance for the sliding rod 401 of the yarn guide assembly 4. The sliding rod 401 forms upper and lower double constraints and can move smoothly along the axis of the lead screw, ensuring that the relative positions of the two first yarn guide wheels 402 and the second yarn guide wheel 404 change precisely, the yarn winding length adjustment is more uniform, and finally, precise tension adjustment is achieved.

[0023] As one implementation method in this embodiment, please refer to Figure 4 As shown, the yarn guide assembly 4 includes two sliding rods 401 and a fixed rod 403. The upper ends of the two sliding rods 401 are symmetrically slidably connected to the outer wall of the second lead screw 307, and the lower ends of the two sliding rods 401 are symmetrically slidably connected to the outer wall of the first lead screw 302. The center of the inner cavity of the sliding rod 401 is connected to the first yarn guide wheel 402.

[0024] Two sliding rods 401 move along the axial direction of the lead screw to change the winding length of the yarn between the guide wheels, serving as the actuator for tension adjustment. The two sliding rods 401 are symmetrically distributed around the fixed rod 403 and are completely symmetrical with the connection position of the double lead screw. This ensures that the two sliding rods 401 move the same distance, and the winding length of the yarn on the first guide wheels 402 on both sides changes evenly, preventing a situation where one side has high tension and the other side has low tension. The yarn always stays near the central axis of the mechanism, avoiding yarn deviation and friction against the edge of the component due to the offset of the sliding rods 401. The fixed rod 403 serves as a reference for the movement of the sliding rods 401, providing a fixed fulcrum for the yarn winding through a fixed position, ensuring that the change in the winding length of the yarn can be precisely controlled during tension adjustment. The first guide wheel 402 is rotatably connected to the sliding rod 401 through a shaft core. When the yarn passes over the guide wheel, it will drive the guide wheel to rotate synchronously.

[0025] As one implementation method in this embodiment, please refer to Figure 4 As shown, the upper end of the fixing rod 403 is fixedly connected to the outer wall of the second lead screw 307, and the lower end of the fixing rod 403 is fixedly connected to the upper end of the center column 303. The center of the inner cavity of the fixing rod 403 is connected to the second guide wheel 404.

[0026] The fixing rod 403 provides support for the second lead screw 307. The second lead screw 307 is only supported at both ends by the second fixing column 305. Under long-term stress, it is prone to sagging in the middle. The fixing of the upper end of the fixing rod 403 can counteract the sagging trend and ensure that the second lead screw 307 is always parallel to the lower end of the first lead screw 302. If the two lead screws are not parallel, the upper and lower ends of the sliding rod 401 will jam or tilt, directly causing tension adjustment deviation. The center column 303 is fixed to the base 1 through the frame 301 and its position cannot be moved. After the lower end of the fixing rod 403 is fixed to it, the overall position is doubly locked and will not be offset by yarn tension or the movement of the sliding rod 401. When the carbon fiber yarn is transmitted, it will generate a tension load on the second guide wheel 404. The fixing rod 403, through the connection between its lower end and the center column 303, transmits the load to the frame 301 and the base 1, avoiding the second lead screw 307 from bearing all the force, which would cause the lead screw to deform and extend the service life of the components.

[0027] Working principle: First, the rolled carbon fiber yarn base material 202 is installed on the upper ends of the two first support columns 201 of the suspension assembly 2. Because the yarn base material 202 is rotatably connected to the first support columns 201, the yarn base material 202 can rotate synchronously with the extraction action when the yarn is pulled out. Then, one end of the yarn base material 202 is pulled out and passes through the first yarn guide hole 204 at the upper end of the first fixed column 203. Through the limiting effect of the first yarn guide hole 204, the initial guidance of the yarn is completed, ensuring that the yarn enters the subsequent adjustment assembly 3 in the preset direction. The yarn, initially guided, continues to the yarn guide assembly 4 inside the adjusting assembly 3. It first passes the first yarn guide wheel 402 on one of the sliding rods 401, then turns and passes the second yarn guide wheel 404 on the fixed rod 403, and finally passes the first yarn guide wheel 402 on the other sliding rod 401. During this process, the rotational characteristics of the yarn guide wheels convert the sliding friction between the yarn and the assembly into rolling friction, reducing wear on the yarn surface and protecting the structural integrity of the carbon fiber yarn. When it is necessary to adjust the yarn tension according to the cutting requirements... Rotating the adjustment knob 304 of the adjustment component 3 causes the first lead screw 302, which is fixedly connected to it, to rotate within the frame 301 and the central column 303. Since the lower ends of the two sliding rods 401 are slidably connected to the threads on the first lead screw 302 and the upper ends are slidably connected to the second lead screw 307, when the first lead screw 302 rotates, it will drive the two sliding rods 401 to move synchronously closer to or away from the fixed rod 403 along the lead screw axis. When the sliding rods 401 move closer to the fixed rod 403, the winding length of the yarn between the guide wheels is shortened, and the tension is reduced accordingly. When the sliding rod 401 moves away from the fixed rod 403, the yarn winding length increases, and the tension increases accordingly. This achieves precise and dynamic adjustment of the yarn tension, adapting to the transmission requirements of carbon fiber yarns of different specifications. After the tension adjustment is completed, the yarn is led out from the yarn guide assembly 4 and passes through the second yarn guide hole 306 at the upper end of the second fixed column 305. Through the secondary limiting of the second yarn guide hole 306, it is ensured that the yarn is delivered to the processing end of the carbon fiber frame yarn cutter with a stable path and tension, providing a precise yarn supply for subsequent yarn cutting processes.

[0028] The above embodiments are only used to illustrate the technical solution of this utility model, and are not intended to limit it.

Claims

1. An adjustable yarn guiding mechanism for a carbon fiber frame yarn cutting machine, characterized in that: It includes a base (1) for supporting the upper part, a suspension assembly (2) for suspending the yarn base material (202) is provided at the upper end of the base (1), an adjustment assembly (3) for adjusting the tension of the device is provided at one end of the base (1), and a yarn guide assembly (4) for conducting the yarn is provided in the middle of the adjustment assembly (3). The suspension assembly (2) includes two first support columns (201) and a first fixing column (203). The two first support columns (201) are fixedly connected to the upper center of the base (1) on one side. The upper ends of the two first support columns (201) are rotatably connected to yarn base material (202). The first fixing column (203) is fixedly connected to the upper end of the base (1) near the yarn base material (202). The upper center of the first fixing column (203) is connected through a first yarn guide hole (204). The adjustment component (3) includes a frame (301), which is fixedly connected to one end of the base (1) near the first yarn guide hole (204). A first lead screw (302) is rotatably connected to the center of the frame (301), and one end of the first lead screw (302) passes through the frame (301). An adjustment knob (304) is fixedly connected to one end of the first lead screw (302) that passes through the frame (301). A central column (303) is fixedly connected to the center of the frame (301), and the inner cavity of the central column (303) is rotatably connected to the first lead screw (302).

2. The adjustable yarn guiding mechanism for a carbon fiber frame yarn cutting machine according to claim 1, characterized in that: A second fixing post (305) is fixedly connected to one side of the upper end of the frame (301). A second yarn guide hole (306) is connected through the center of the upper end of the second fixing post (305). A second lead screw (307) is rotatably connected to the upper end of the second fixing post (305).

3. The adjustable yarn guiding mechanism for a carbon fiber frame yarn cutting machine according to claim 2, characterized in that: The yarn guide assembly (4) includes two sliding rods (401) and a fixed rod (403). The upper ends of the two sliding rods (401) are symmetrically slidably connected to the second lead screw (307), and the lower ends of the two sliding rods (401) are symmetrically slidably connected to the first lead screw (302). The first yarn guide wheel (402) is rotatably connected to the central cavity of the sliding rod (401).

4. The adjustable yarn guiding mechanism for a carbon fiber frame yarn cutting machine according to claim 3, characterized in that: The upper end of the fixing rod (403) is fixedly connected to the second lead screw (307), and the lower end of the fixing rod (403) is fixedly connected to the central column (303). The second guide wheel (404) is rotatably connected to the central cavity of the fixing rod (403).

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