Tension compensation device for carbon fiber production process

Abstract

The utility model discloses a carbon fiber production process tension compensation device which comprises an installation frame and an automatic tension compensation mechanism installed at the upper end of the installation frame, the inner wall of a first connecting frame is rotationally connected with an adjusting frame, the inner wall of a connecting groove is rotationally connected with an electric telescopic rod, and the inner wall of one end of the adjusting frame is rotationally connected with an extrusion roller. A support frame is mounted at one end of the mounting frame outside the guide wheel, and a pressure sensor is inserted into the inner wall of the telescopic groove; when a carbon fiber tow droops due to insufficient tension, a pressure sensor is extruded, an electric telescopic rod is triggered to stretch and retract to push an adjusting frame, so that the adjusting frame is pressed to descend, an extrusion roller is extruded on a guide wheel, the transmission speed of the rear carbon fiber tow is slowed down, the tension of front and rear carbon fibers is further improved, and the tension is also increased; therefore, workers do not need to pay attention to the carbon fiber production condition all the time and carry out manual tension compensation, the tension compensation time is shortened, and the workload of the workers is relieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of carbon fiber production, specifically to a carbon fiber production process tension compensation device. BACKGROUND

[0002] Carbon fiber refers to high-strength and high-modulus fiber with a carbon content of more than 90%. It is the first among all chemical fibers in terms of high temperature resistance. It is made from acrylic and viscose fibers through high-temperature oxidation and carbonization. It is an excellent material for manufacturing high-tech equipment such as aerospace, and in the process of carbon fiber production and processing, carbon fiber tows need to be produced and processed first. During processing, the tows need to be tightened and transferred. During the transfer process, the tows often sag due to their own tension, making it difficult to straighten them, which affects the compressive strength of the carbon fiber produced.

[0003] To this end, Chinese patent number CN217398100U proposes a carbon fiber production process tension compensation device. The metal pull rod passes through the limiting hole of the limiting plate, and the bottom of the metal pull rod is connected with the weight. When the weight falls beyond the set height, the infrared alarm at the bottom of the trigger device is triggered. This device is suitable for maintaining the tension constancy of the tension between different tows during the carbonization process, and has a significant effect on improving the stability of carbon fiber performance.

[0004] However, the above technical solution requires continuous addition of weights to each transferred tow during tension compensation during carbon fiber production. The worker needs to constantly monitor the tension changes of the carbon fiber tows during transfer and manually operate the weight addition. The reaction time of manual adjustment is relatively long, which increases the workload of the worker. To solve this problem, the present design proposes a carbon fiber production process tension compensation device. UTILITY MODEL CONTENTS

[0005] The utility model aims to provide a carbon fiber production process tension compensation device to solve the problems raised in the background art.

[0006] To achieve the above-mentioned purpose, the utility model proposes a carbon fiber production process tension compensation device, which comprises a mounting frame and an automatic tension compensation mechanism mounted on the upper end of the mounting frame.

[0007] The automatic tension compensation mechanism includes a guide wheel rotatably mounted on the inner wall of one end of the mounting frame. A first connecting frame is mounted on one side of the top of the mounting frame. An adjusting frame is rotatably connected to the inner wall of the first connecting frame. A connecting groove is opened at one end of the top of the mounting frame. An electric telescopic rod is rotatably connected to the inner wall of the connecting groove. A second connecting frame is fixedly mounted on one side of the outer wall of the adjusting frame. The output end of the electric telescopic rod is rotatably connected to the inner wall of the second connecting frame. A squeezing roller is rotatably connected to the inner wall of one end of the adjusting frame. A support frame is mounted at one end of the mounting frame outside the guide wheel. A telescopic groove is opened at the top of the support frame. A pressure sensor is inserted into the inner wall of the telescopic groove.

[0008] In one example, support shafts are inserted and connected to both sides of the bottom of the support frame, and one end of each support shaft passes through the inner wall of the telescopic groove and is fixedly connected to the bottom of the pressure sensor.

[0009] In one example, a first spring is fitted on the outer wall of one end of each of the two support shafts, and the two ends of the two first springs are fixedly connected to the bottom of the support frame and one side of the two support shafts, respectively.

[0010] In one example, a connecting shaft is fixedly provided on the inner wall of one end of the first connecting frame, a second spring is sleeved on the outer wall of the connecting shaft, and a connecting ring is fixedly provided on one side of the adjusting frame.

[0011] In one example, one end of the second spring is fixedly connected to the outer wall of the connecting ring, and multiple mounting holes are provided at equal intervals on one side of the mounting bracket.

[0012] In one example, the electrically operated telescopic rod is electrically connected to a pressure sensor.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: By setting an automatic tension compensation mechanism, when insufficient tension occurs during the production and transmission of carbon fiber tow, the pressure sensor on the support frame will be squeezed, thereby triggering the extension and retraction of the electric telescopic rod to push the adjustment frame to be compressed and lowered. The squeezing roller squeezes the carbon fiber and the guide wheel, which slows down the transmission speed of the carbon fiber tow behind, increases the tension of the carbon fibers in front and behind, and increases the tension accordingly, so that it straightens again and does not sag. There is no need for the staff to pay attention to the carbon fiber production status and manually perform tension compensation at all times, shortening the tension compensation time and reducing the workload of the staff. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the automatic tension compensation mechanism of this utility model;

[0016] Figure 3This is a schematic diagram of the internal structure of the support frame of this utility model;

[0017] Figure 4 Appendix to the specification of this utility model Figure 2 Enlarged structural diagram at point A in the middle.

[0018] In the diagram: 1. Mounting frame; 2. Automatic tension compensation mechanism; 201. Guide wheel; 202. First connecting frame; 203. Adjusting frame; 204. Connecting groove; 205. Electric telescopic rod; 206. Second connecting frame; 207. Extrusion roller; 208. Support frame; 209. Telescopic groove; 210. Pressure sensor; 211. Support shaft; 212. First spring; 3. Connecting shaft; 4. Second spring; 5. Connecting ring; 6. Mounting hole. Detailed Implementation

[0019] 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.

[0020] Please see Figures 1-4 This utility model provides a technical solution: a tension compensation device for carbon fiber production process, including a mounting frame 1 and an automatic tension compensation mechanism 2 installed on the upper end of the mounting frame 1;

[0021] The automatic tension compensation mechanism 2 includes a guide wheel 201 rotatably mounted on the inner wall of one end of the mounting frame 1. A first connecting frame 202 is mounted on one side of the top of the mounting frame 1. An adjusting frame 203 is rotatably connected to the inner wall of the first connecting frame 202. A connecting groove 204 is opened at one end of the top of the mounting frame 1. An electric telescopic rod 205 is rotatably connected to the inner wall of the connecting groove 204. A second connecting frame 206 is fixedly mounted on one side of the outer wall of the adjusting frame 203. The output end of the electric telescopic rod 205 is rotatably connected to the inner wall of the second connecting frame 206. A squeezing roller 207 is rotatably connected to the inner wall of one end of the adjusting frame 203. A support frame 208 is mounted at one end of the mounting frame 1 outside the guide wheel 201. A telescopic groove 209 is opened at the top of the support frame 208. A pressure sensor 210 is inserted into the inner wall of the telescopic groove 209. When the electric telescopic rod 205 extends or retracts, its two ends rotate on the inner walls of the connecting groove 204 and the second connecting frame 206 respectively, so that it does not produce motion interference.

[0022] In use, the mounting frame 1 is installed in the carbon fiber tow production and transfer area. The tow is passed through the guide wheel 201 at one end of the mounting frame 1 and transferred by the rotation of the friction guide wheel 201. An automatic tension compensation mechanism 2 is installed on the mounting frame 1 located at the rear. When the carbon fiber tow is understressed and sags, it will press against the pressure sensor 210 located on the support frame 208 below during the transfer process. This pressure will trigger the extension and retraction of the electric telescopic rod 205, which will push the adjustment frame 203 to rotate on the first connecting frame 202 and then bring the extrusion roller 207 down to press against the guide wheel 201. This will increase the friction between the carbon fiber tow and the guide wheel 201, thereby slowing down the rotation speed of the guide wheel 201. This will slow down the transfer speed of the carbon fiber tow behind, thereby generating tension with the tow in front, which will increase the corresponding tension. This will cause the carbon fiber tow to straighten again during the transfer, achieving the purpose of automatic tension compensation in the carbon fiber production process. This eliminates the need for staff to constantly monitor the carbon fiber production status or manually operate the tension compensation, reducing the workload of the staff.

[0023] Furthermore, support shafts 211 are inserted and connected to both sides of the bottom of the support frame 208, and one end of each support shaft 211 passes through the inner wall of the telescopic groove 209 and is fixedly connected to the bottom of the pressure sensor 210. The support shafts 211 slide through the bottom of the support frame 208 and are connected by the first spring 212 to prevent them from falling off. At the same time, the elasticity of the first spring 212 positions them so that the pressure sensor 210 extends out of the telescopic groove 209.

[0024] Each of the two support shafts 211 has a first spring 212 fitted on the outer wall of one end. The two ends of the two first springs 212 are fixedly connected to the bottom of the support frame 208 and one side of the two support shafts 211, respectively. When the carbon fiber is under tension and droops and squeezes the pressure sensor 210, the pressure sensor 210 passes through the support shaft 211 at the bottom of the support frame 208, which will compress the first spring 212 to provide a certain buffer, preventing the carbon fiber from rubbing against the pressure sensor 210 for a long time and causing it to wear out and become unusable.

[0025] Furthermore, a connecting shaft 3 is fixedly provided on the inner wall of one end of the first connecting frame 202, and a second spring 4 is sleeved on the outer wall of the connecting shaft 3. A connecting ring 5 is fixedly provided on one side of the adjusting frame 203. When the electric telescopic rod 205 extends and presses the adjusting frame 203 to make the pressing roller 207 descend, it extends and retracts through the second spring 4 connected to the connecting ring 5 at the upper end of the adjusting frame 203 and the connecting shaft 3 on the first connecting frame 202 to achieve the purpose of buffering and prevent the electric telescopic rod 205 from excessively impacting the adjusting frame 203 during extension and retraction, which would cause the pressing roller 207 to be excessively pressed and cause structural damage.

[0026] Furthermore, one end of the second spring 4 is fixedly connected to the outer wall of the connecting ring 5, and multiple mounting holes 6 are equally spaced on one side of the mounting bracket 1, through which the entire mounting bracket 1 is installed and fixed.

Claims

1. A tension compensation device for carbon fiber production process, comprising a mounting frame (1) and an automatic tension compensation mechanism (2) mounted on the upper end of the mounting frame (1); Its features are: The automatic tension compensation mechanism (2) includes a guide wheel (201) rotatably mounted on the inner wall of one end of the mounting frame (1). A first connecting frame (202) is mounted on one side of the top of the mounting frame (1). An adjusting frame (203) is rotatably connected to the inner wall of the first connecting frame (202). A connecting groove (204) is provided at one end of the top of the mounting frame (1). An electric telescopic rod (205) is rotatably connected to the inner wall of the connecting groove (204). One side of the outer wall of the adjusting frame (203) is fixed. A second connecting frame (206) is fixedly provided, and the output end of the electric telescopic rod (205) is rotatably connected to the inner wall of the second connecting frame (206). A squeezing roller (207) is rotatably connected to the inner wall of one end of the adjusting frame (203). A support frame (208) is installed at one end of the mounting frame (1) on the outside of the guide wheel (201). A telescopic groove (209) is opened on the top of the support frame (208), and a pressure sensor (210) is inserted into the inner wall of the telescopic groove (209).

2. The tension compensation device for carbon fiber production process according to claim 1, characterized in that: Support shafts (211) are inserted and connected to both sides of the bottom of the support frame (208), and one end of each support shaft (211) passes through the inner wall of the telescopic groove (209) and is fixedly connected to the bottom of the pressure sensor (210).

3. The tension compensation device for carbon fiber production process according to claim 2, characterized in that: Each of the two support shafts (211) has a first spring (212) fitted on the outer wall of one end, and the two ends of the two first springs (212) are fixedly connected to the bottom of the support frame (208) and one side of the two support shafts (211), respectively.

4. A tension compensation device for carbon fiber production process according to claim 1, characterized in that: A connecting shaft (3) is fixedly provided on the inner wall of one end of the first connecting frame (202), and a second spring (4) is sleeved on the outer wall of the connecting shaft (3). A connecting ring (5) is fixedly provided on one side of the adjusting frame (203).

5. A tension compensation device for carbon fiber production process according to claim 4, characterized in that: One end of the second spring (4) is fixedly connected to the outer wall of the connecting ring (5), and a plurality of mounting holes (6) are provided at equal intervals on one side of the mounting bracket (1).

6. A tension compensation device for carbon fiber production process according to claim 1, characterized in that: The electric telescopic rod (205) is electrically connected to the pressure sensor (210).

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