A pre-impregnation device for carbon fiber cloth processing
By introducing ultrasonic vibration and motor-driven tension roller design into the carbon fiber fabric processing device, the problem of insufficient impregnation of carbon fiber fabric was solved, achieving more uniform impregnation and air bubble removal, thus improving the quality of prepreg.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHANGJIAGANG LINGZHI COMPOSITE MATERIAL CO LTD
- Filing Date
- 2025-08-12
- Publication Date
- 2026-06-30
AI Technical Summary
In existing pre-impregnation devices for carbon fiber cloth processing, differences in surface tension of carbon fiber cloth or fluctuations in resin viscosity can lead to insufficient impregnation in certain areas. In particular, the amount of resin adhering to the edge and middle areas of the cloth surface deviates significantly, affecting the consistency of prepreg performance and potentially causing pore defects after drying.
The device design includes an impregnation tank, tension rollers, extrusion guide rollers, and an ultrasonic generator. High-frequency ultrasonic vibration breaks the surface tension of the resin, promoting the penetration of the adhesive. The tension rollers are raised and lowered by a motor, and the extrusion guide rollers are adjusted to ensure uniform impregnation of the carbon fiber cloth and the removal of air bubbles.
It improves the uniformity of carbon fiber cloth impregnation, avoids wrinkles and air bubble residue, improves the performance consistency of prepreg, and prevents the formation of pore defects.
Smart Images
Figure CN224426119U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of carbon fiber cloth processing technology, and in particular to a pre-impregnation device for carbon fiber cloth processing. Background Technology
[0002] Carbon fiber preimpregnation is a common process in the manufacture of carbon fiber reinforced composites. It involves pre-impregnating carbon fiber cloth in resin to form a resin film, which is then reinforced through processes such as hot pressing or thermosetting, ultimately resulting in a carbon fiber reinforced composite material with excellent properties.
[0003] In the current technology, a pre-impregnation device for carbon fiber cloth processing is prone to insufficient impregnation in certain areas due to differences in the surface tension of the carbon fiber cloth or fluctuations in the viscosity of the resin. In particular, the amount of resin adhering to the edge and middle areas of the cloth surface is significantly different, which affects the consistency of the prepreg performance. Furthermore, during subsequent drying, too many air bubbles may remain on the surface of the carbon fiber cloth, which will form pore defects after subsequent curing. Utility Model Content
[0004] The purpose of this invention is to solve the problem that in the prior art, the difference in surface tension of carbon fiber cloth or the fluctuation of resin viscosity can easily lead to insufficient local wetting, especially the large deviation in the amount of resin adhering between the edge and the middle area of the cloth surface, which affects the consistency of the prepreg performance and may leave too many air bubbles on the surface of the carbon fiber cloth during subsequent drying, forming pore defects after subsequent curing. Therefore, a pre-impregnation device for carbon fiber cloth processing is proposed.
[0005] To achieve the above objectives, the present invention adopts the following technical solution: a pre-impregnation device for carbon fiber cloth processing, comprising an impregnation tank, a frame fixed at one end of the impregnation tank, a connecting frame above the impregnation tank, first supports fixed on both sides of the bottom end of the connecting frame, tension rollers rotatably connected within the two first supports, a drive structure for driving the connecting frame to move up and down within the frame, electric telescopic rods on both sides above the impregnation tank, third supports fixed at the output ends of the two electric telescopic rods, first extrusion guide rollers rotatably connected within the third supports, second extrusion guide rollers on both sides of the top end of the impregnation tank below the first extrusion guide rollers, an ultrasonic generator installed at the other end of the impregnation tank, and a controller installed on one side of the ultrasonic generator.
[0006] Preferably, the drive structure includes a first motor mounted on the top wall of the frame, a screw fixed to the output end of the first motor, a movable plate threadedly connected to the outer wall of the screw, a limit post slidably connected to the end of the movable plate away from the screw, a connecting plate fixed to the top of the movable plate, and the end of the connecting plate away from the movable plate penetrating the frame and fixed to the connecting frame.
[0007] Preferably, two sets of fixing plates are fixed at the top of the immersion tank, and the second extrusion guide roller is rotatably connected between the two fixing plates. A third motor is installed on the outer wall of one of the fixing plates, and the output end of the third motor passes through the fixing plate and is fixed to the second extrusion guide roller.
[0008] Preferably, a second motor is installed at one end of the third bracket, the output end of the second motor passes through one end of the third bracket and is fixed to the first extrusion guide roller, and second brackets are fixed on both sides of the top of the immersion tank, and the two electric telescopic rods are respectively installed at the bottom of the two second brackets.
[0009] Preferably, the end of the screw furthest from the first motor is rotatably connected to the frame, and both ends of the limiting post are fixed to the frame.
[0010] Preferably, the ultrasonic generator is located on one side of the two tension rollers, wherein the first extrusion guide roller and the corresponding second extrusion guide roller are not located at the top edge of the immersion tank.
[0011] Compared with the prior art, the advantages and positive effects of this utility model are as follows:
[0012] In this invention, an ultrasonic generator is used to break the surface tension of the resin through high-frequency ultrasonic vibration, promoting the penetration of the adhesive into the fiber gaps and improving the uniformity of impregnation. The operation of the first motor drives the screw to rotate, causing the moving plate to rise and fall under the limit of the limiting post, thereby driving the connecting frame connected to the connecting plate to rise and fall. This, in turn, drives the two tensioning rollers to rise and fall. The cooperation of the two tensioning rollers serves two purposes: firstly, it tensions the carbon fiber cloth during transmission, preventing wrinkles and ensuring complete impregnation; secondly, the two tensioning rollers create a smooth section between the carbon fiber cloth during transmission, and the ultrasonic generator is positioned within this smooth section for better impregnation. Furthermore, the device uses an electric telescopic rod to drive the third support to rise and fall, thereby driving the first extrusion guide roller to rise and fall. Adjusting the distance between the first and second extrusion guide rollers allows for adjustment based on the thickness of the carbon fiber cloth. The downward pressure of the first extrusion guide roller squeezes out air bubbles from the impregnated carbon fiber cloth. Attached Figure Description
[0013] Figure 1 A perspective view of a pre-impregnation device for carbon fiber cloth processing is provided for this utility model;
[0014] Figure 2 This utility model provides a right-side perspective view of a pre-impregnation device for carbon fiber cloth processing;
[0015] Figure 3This utility model provides a schematic diagram of the driving structure of a pre-impregnation device for carbon fiber cloth processing;
[0016] Figure 4 This utility model presents a schematic diagram of the external structure of the extrusion guide roller of a pre-impregnation device for carbon fiber cloth processing.
[0017] Legend: 1. Immersion tank; 2. Frame; 3. Connecting frame; 4. First support; 5. Tensioning roller; 6. Drive structure; 601. First motor; 602. Screw; 603. Moving plate; 604. Limiting post; 605. Connecting plate; 7. Second support; 8. Electric telescopic rod; 9. Third support; 10. Second motor; 11. First extrusion guide roller; 12. Fixed plate; 13. Third motor; 14. Second extrusion guide roller; 15. Ultrasonic generator; 16. Controller. Detailed Implementation
[0018] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.
[0019] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.
[0020] Example 1, such as Figure 1-4 As shown, this utility model provides a pre-impregnation device for carbon fiber cloth processing, including an impregnation tank 1, a frame 2 fixed to one end of the impregnation tank 1, a connecting frame 3 provided above the impregnation tank 1, first brackets 4 fixed on both sides of the bottom end of the connecting frame 3, tension rollers 5 rotatably connected inside the two first brackets 4, a drive structure 6 for driving the connecting frame 3 to lift and lower as a whole provided inside the frame 2, electric telescopic rods 8 provided on both sides of the top of the impregnation tank 1, a third bracket 9 fixed to the output end of the two electric telescopic rods 8, a first extrusion guide roller 11 rotatably connected inside the third bracket 9, second extrusion guide rollers 14 provided on both sides of the top of the impregnation tank 1 below the first extrusion guide rollers 11, an ultrasonic generator 15 installed at the other end of the impregnation tank 1, and a controller 16 installed on one side of the ultrasonic generator 15.
[0021] The overall effect of Embodiment 1 is that, through the operation of the drive structure 6, the connecting frame 3 can be driven to rise and fall, thereby driving the two tension rollers 5 to rise and fall, and tensioning the carbon fiber cloth being transmitted. The arrangement of the two tension rollers 5 creates a smooth section when the carbon fiber cloth is transmitted between the two tension rollers 5, and the ultrasonic generator 15 is located in this smooth section, which improves the impregnation effect. Through the operation of the electric telescopic rod 8, the third bracket 9 can be driven to rise and fall, thereby driving the first extrusion guide roller 11 to rise and fall, adjusting the distance between it and the second extrusion guide roller 14, which can be adjusted according to the thickness of the carbon fiber cloth. Through the downward pressure of the first extrusion guide roller 11, the impregnated carbon fiber cloth is squeezed to expel air bubbles. Through the setting of the ultrasonic generator 15, the surface tension of the resin is broken by high-frequency ultrasonic vibration, promoting the penetration of the adhesive into the fiber gaps and improving the impregnation uniformity.
[0022] Example 2, as Figure 1-4 As shown, the drive structure 6 includes a first motor 601 mounted on the top wall of the inner frame 2. A screw 602 is fixed to the output end of the first motor 601. A movable plate 603 is threaded onto the outer wall of the screw 602. A limit post 604 is slidably connected to the end of the movable plate 603 away from the screw 602. A connecting plate 605 is fixed to the top of the movable plate 603. The end of the connecting plate 605 away from the movable plate 603 passes through the frame 2 and is fixed to the connecting frame 3. Two sets of fixed plates 12 are fixed to the top of the immersion tank 1. A second extrusion guide roller 14 is rotatably connected between the two fixed plates 12. A third motor 13 is mounted on the outer wall of one of the fixed plates 12. The output of the third motor 13... The end of the fixed plate 12 is fixed to the second extrusion guide roller 14. The second motor 10 is installed at one end of the third bracket 9. The output end of the second motor 10 passes through one end of the third bracket 9 and is fixed to the first extrusion guide roller 11. The top two sides of the immersion tank 1 are fixed with the second bracket 7. The two electric telescopic rods 8 are respectively installed at the bottom of the two second brackets 7. The end of the screw 602 away from the first motor 601 is rotatably connected to the frame 2. The two ends of the limiting column 604 are fixed to the frame 2. The ultrasonic generator 15 is located on one side of the two tension rollers 5. One of the first extrusion guide rollers 11 and the corresponding second extrusion guide roller 14 are not located at the top edge of the immersion tank 1.
[0023] The overall effect of Embodiment 2 is as follows: the operation of the first motor 601 drives the screw 602 to rotate, causing the moving plate 603 to rise and fall under the limit of the limiting post 604, thereby driving the connecting frame 3 connected to the connecting plate 605 to rise and fall, which in turn drives the two tensioning rollers 5 to rise and fall. Through the cooperation of the two tensioning rollers 5, on the one hand, the carbon fiber cloth being transmitted can be tensioned to avoid wrinkles and incomplete impregnation; on the other hand, the arrangement of the two tensioning rollers 5 creates a smooth section when the carbon fiber cloth is transmitted between the two tensioning rollers 5, and the ultrasonic generator 15 is located in this smooth section, resulting in better impregnation. Through the operation of the second motor 10 and the third motor 13, it is possible to... The first extrusion guide roller 11 and the second extrusion guide roller 14 are driven to rotate, thereby performing transmission processing on the carbon fiber cloth. The first extrusion guide roller 11 and the second extrusion guide roller 14 on one side of the top of the impregnation tank 1 are used for cloth feeding transmission, while the first extrusion guide roller 11 and the second extrusion guide roller 14 not located at the top edge of the impregnation tank 1 are used for cloth output transmission. The extruded air bubbles and viscous liquid will fall back into the impregnation tank 1. The controller 16 of this device is electrically connected to the first motor 601, the second motor 10, the third motor 13, the electric telescopic rod 8 and the ultrasonic generator 15 respectively. Therefore, the controller 16 can control the operation of the first motor 601, the second motor 10, the third motor 13, the electric telescopic rod 8 and the ultrasonic generator 15.
[0024] Working principle: When in use, the ultrasonic generator 15 uses high-frequency ultrasonic vibration to break the surface tension of the resin, promoting the penetration of the adhesive into the fiber gaps and improving the uniformity of impregnation. Simultaneously, the operation of the first motor 601 drives the screw 602 to rotate, causing the moving plate 603 to rise and fall under the limit of the limiting post 604. This, in turn, drives the connecting frame 3 connected to the connecting plate 605 to rise and fall, thereby driving the two tensioning rollers 5 to rise and fall. Through the cooperation of the two tensioning rollers 5, the carbon fiber cloth being driven is tensioned, preventing wrinkles from forming. While achieving complete impregnation, the arrangement of the two tension rollers 5 creates a smooth section as the carbon fiber cloth travels between them. The ultrasonic generator 15 is positioned within this smooth section, resulting in better impregnation. Furthermore, the device, through the operation of the electric telescopic rod 8, can drive the third support 9 to rise and fall, thereby driving the first extrusion guide roller 11 to rise and fall. Adjusting the distance between it and the second extrusion guide roller 14 allows for adjustment based on the thickness of the carbon fiber cloth. The downward pressure of the first extrusion guide roller 11 extrudes air bubbles from the impregnated carbon fiber cloth.
[0025] The wiring diagrams of the controller 16, the first motor 601, the second motor 10, the third motor 13, the electric telescopic rod 8, and the ultrasonic generator 15 in this utility model are common knowledge in the field. Their working principles are known technologies. The appropriate model is selected according to actual use. Therefore, the control methods and wiring layouts of the controller 16, the first motor 601, the second motor 10, the third motor 13, the electric telescopic rod 8, and the ultrasonic generator 15 will not be explained in detail.
[0026] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.
Claims
1. A pre-soaking device for processing carbon fiber cloth, comprising a soaking tank (1), characterized in that: A frame (2) is fixed at one end of the immersion tank (1). A connecting frame (3) is provided above the immersion tank (1). A first bracket (4) is fixed on both sides of the bottom end of the connecting frame (3). A tension roller (5) is rotatably connected inside the two first brackets (4). A drive structure (6) for driving the connecting frame (3) to lift and lower is provided inside the frame (2). Electric telescopic rods (8) are provided on both sides above the immersion tank (1). A third bracket (9) is fixed at the output end of the two electric telescopic rods (8). A first extrusion guide roller (11) is rotatably connected inside the third bracket (9). A second extrusion guide roller (14) is provided on both sides of the top end of the immersion tank (1) below the first extrusion guide roller (11). An ultrasonic generator (15) is installed at the other end of the immersion tank (1). A controller (16) is installed on one side of the ultrasonic generator (15).
2. The pre-impregnation device for carbon fiber cloth processing according to claim 1, characterized in that: The drive structure (6) includes a first motor (601) installed on the inner top wall of the frame (2). The output end of the first motor (601) is fixed with a screw (602). A movable plate (603) is threadedly connected to the outer wall of the screw (602). A limit post (604) is slidably connected to one end of the movable plate (603) away from the screw (602). A connecting plate (605) is fixed to the top of the movable plate (603). One end of the connecting plate (605) away from the movable plate (603) passes through the frame (2) and is fixed to the connecting frame (3).
3. The pre-impregnation device for carbon fiber cloth processing according to claim 1, characterized in that: Two sets of fixing plates (12) are fixed at the top of the immersion tank (1). The second extrusion guide roller (14) is rotatably connected between the two fixing plates (12). A third motor (13) is installed on the outer wall of one of the fixing plates (12). The output end of the third motor (13) passes through the fixing plate (12) and is fixed to the second extrusion guide roller (14).
4. The pre-impregnation device for carbon fiber cloth processing according to claim 1, characterized in that: A second motor (10) is installed at one end of the third bracket (9). The output end of the second motor (10) passes through one end of the third bracket (9) and is fixed to the first extrusion guide roller (11). The top two sides of the immersion pool (1) are fixed with second brackets (7). The two electric telescopic rods (8) are respectively installed at the bottom ends of the two second brackets (7).
5. The pre-impregnation device for carbon fiber cloth processing according to claim 2, characterized in that: The end of the screw (602) away from the first motor (601) is rotatably connected to the frame (2), and both ends of the limiting post (604) are fixed to the frame (2).
6. The pre-impregnation device for carbon fiber cloth processing according to claim 1, characterized in that: The ultrasonic generator (15) is located on one side of the two tension rollers (5), wherein the first extrusion guide roller (11) and the corresponding second extrusion guide roller (14) are not located at the top edge of the immersion tank (1).