A buffer layer fiber impregnated resin permeation device
By designing a negative pressure structure and a vacuum pump system, the problem of uneven resin impregnation in fibers was solved, enabling rapid resin penetration and recycling, improving the strength and stability of fiber fabrics, and reducing production costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGMEN KINGBOARD ELECTRONIC DEV CO LTD
- Filing Date
- 2025-06-30
- Publication Date
- 2026-07-17
AI Technical Summary
In traditional fiber impregnation methods, the solvent cannot penetrate into the fiber quickly and evenly, resulting in insufficient impregnation and affecting the strength and stability of the product.
By employing a negative pressure structure and vacuum pump system, and through the design of a negative pressure box and a recovery box, combined with guide rollers and a traction structure, the resin solvent can be rapidly penetrated and recycled, ensuring that the fiber fabric is fully impregnated.
It improves resin penetration efficiency, enhances the strength and stability of fiber fabrics, reduces resin waste, and lowers production costs.
Smart Images
Figure CN224513830U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of fiber impregnation technology, specifically to a buffer layer fiber impregnation resin permeation device. Background Technology
[0002] In the field of composite material manufacturing, fiber products are widely used in aerospace, automobile manufacturing, sporting goods and other industries due to their good cushioning and mechanical properties. In the production process of cushioning layer fiber products, in order to enhance the mechanical properties and improve the durability of fiber fabrics, resin impregnation is usually used. Traditional fiber impregnation with resin mostly adopts the solution method, which relies on traction equipment and guide wheels to introduce the fiber fabric into the solvent in which the resin is dissolved, so that the solvent penetrates the fiber fabric. However, due to the relatively dense structure of the fiber fabric, the solvent is difficult to penetrate into the fiber interior quickly and evenly, resulting in insufficient impregnation. Uneven resin distribution is likely to occur inside the product, which in turn affects the overall strength and stability of the product.
[0003] To address this issue, we have designed a resin impregnation device for a buffer layer fiber to solve the aforementioned problems. Utility Model Content
[0004] The purpose of this invention is to address the shortcomings of existing technologies by providing a resin impregnation device for buffer layer fibers, thereby solving the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a resin permeation device for impregnating buffer layer fibers, comprising a negative pressure structure. The negative pressure structure is disposed on an impregnation tank and includes a negative pressure box, a recovery box, a vacuum pump, and a liquid pump. The negative pressure box is fixed in the middle of the inner side of the impregnation tank. The recovery box and the liquid pump are both disposed next to the impregnation tank. The top of the negative pressure box is connected to the top of the recovery box via a pipe. The liquid inlet of the liquid pump is connected to the bottom of the recovery box via a pipe, and a solenoid valve is installed on the pipe. The liquid outlet of the liquid pump is connected to a return pipe, and the return pipe leads to the top of the impregnation tank. The vacuum pump is disposed on the top of the recovery box, and the air inlet of the vacuum pump is connected to the top of the recovery box via a pipe. Four horizontally arranged first guide rollers are rotatably mounted on the inner side of the impregnation tank via bearings. Horizontally arranged second guide rollers are rotatably mounted on the left and right sides of the top of the impregnation tank via bearing seats. A traction structure is installed on the left side of the top of the impregnation tank.
[0006] As a preferred embodiment of this utility model, the traction structure includes a first support and a second support. The first support is approximately arched, and a horizontally arranged main roller is rotatably mounted on its inner side via bearings. A reduction motor is mounted on the first support, and the output shaft of the reduction motor is connected to the shaft of the main roller. The second support is also approximately arched, and it is slidably mounted on the inner side of the first support and located directly above the main roller. An auxiliary roller parallel to the main roller is rotatably mounted on the inner side of the second support via bearings. A hydraulic cylinder is mounted on the top of the first support, and the output rod of the hydraulic cylinder is fixed to the top of the second support.
[0007] As a preferred technical solution of this utility model, the negative pressure box is a rectangular box with multiple evenly distributed through holes at the bottom of the box, and the left and right edges of the bottom of the box are rounded.
[0008] As a preferred embodiment of this utility model, the top of the recycling bin is provided with an observation port, and a sealing cap is connected to the observation port by a thread. The bottom of the recycling bin is provided with a drain port, and a solenoid valve is installed on the drain port. A liquid level sensor is installed inside the recycling bin.
[0009] As a preferred embodiment of this utility model, the four first guide rollers are arranged in pairs on the left and right sides of the negative pressure box.
[0010] As a preferred technical solution of this utility model, a control cabinet is provided next to the impregnation tank, and the vacuum pump, liquid pump and traction structure are all connected to the control cabinet.
[0011] As a preferred embodiment of this utility model, the first bracket is provided with vertical guide rods on both the left and right sides, and the second bracket is provided with two guide holes. The second bracket is slidably installed between the two guide rods of the first bracket through these two guide holes, and the lifting and retraction direction of the output rod of the hydraulic cylinder is parallel to the guide rod of the first bracket.
[0012] Compared with the prior art, the present invention provides a resin impregnation device for a buffer layer fiber, which has the following advantages:
[0013] This buffer layer fiber impregnation resin permeation device uses a vacuum pump to create negative pressure inside the recovery tank, which in turn creates negative pressure below the tank. This allows the resin-containing solvent to quickly permeate into the fiber fabric passing below the negative pressure tank, greatly improving resin permeation efficiency and ensuring thorough impregnation of the fiber fabric. This enhances the strength and stability of the product. The recovery tank recovers the solvent that enters the negative pressure tank and then pumps it back to the impregnation tank for recycling, reducing resin waste and lowering production costs. 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 negative pressure box structure of this utility model;
[0016] Figure 3 This is a schematic diagram of the traction structure of this utility model;
[0017] Figure 4 This is a schematic diagram of the running trajectory of the fiber fabric of this utility model.
[0018] Reference numerals: 1. Negative pressure box; 2. Recovery box; 3. Vacuum pump; 4. Liquid pump; 5. Impregnation tank; 6. First guide roller; 7. Second guide roller; 8. Traction structure; 81. First support; 82. Main roller; 83. Gear motor; 84. Second support; 85. Auxiliary roller; 86. Hydraulic cylinder. 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] Example 1: Please refer to Figures 1-4 This embodiment provides a resin permeation device for impregnating buffer layer fibers. The device mainly includes a negative pressure structure, an impregnation tank 5, guide rollers, and a traction structure 8. The negative pressure structure is installed on the impregnation tank 5 and includes a negative pressure box 1, a recovery box 2, a vacuum pump 3, and a liquid pump 4. The negative pressure box 1 is a rectangular box fixed to the center of the inner side of the impregnation tank 5. Multiple evenly distributed through holes are opened at its bottom to allow resin to permeate into the fiber fabric under negative pressure. The left and right edges of the bottom of the box are rounded to prevent the fiber fabric from being scratched when passing under the negative pressure box 1. The recovery box 2 and the liquid pump 4 are both located beside the impregnation tank 5. The top of the negative pressure box 1 is connected to the top of the recovery box 2 through a pipe. The inlet of the liquid pump 4 is connected to the bottom of the recovery box 2 through a pipe, and a solenoid valve is installed on the pipe. The outlet of the liquid pump 4 is connected to a return pipe, which leads to the top of the impregnation tank 5. The liquid pump 4 can pump the resin recovered in the recovery box 2 back to the impregnation tank 5 for recycling. The vacuum pump 3 is set at the top of the recovery box 2, and its air inlet is connected to the top of the recovery box 2 through a pipe. The vacuum pump 3 creates a negative pressure in the recovery box 2, which in turn creates a negative pressure below the negative pressure box 1, causing the resin to quickly penetrate into the fiber fabric passing under the negative pressure box 1.
[0021] Four horizontally arranged first guide rollers 6 are rotatably mounted on the inner side of the impregnation tank 5 via bearings. The four first guide rollers 6 are located in pairs on the left and right sides of the negative pressure box 1, respectively, to guide the fiber fabric to move smoothly in the impregnation tank 5. Horizontally arranged second guide rollers 7 are rotatably mounted on the left and right sides of the top of the impregnation tank 5 via bearing seats. Their function is to introduce or lead the fiber fabric into or out of the impregnation tank 5. A traction structure 8 is installed on the top left side of the impregnation tank 5 to traction the fiber fabric to move in the device. A control cabinet is set next to the impregnation tank 5. The vacuum pump 3, liquid pump 4 and traction structure 8 are all connected to the control cabinet. The operation of each component can be easily controlled through the control cabinet to realize automated operation.
[0022] During operation, the fiber fabric is sequentially passed around the second guide roller 7 on the right, the two sets of first guide rollers 6 on the right, below the negative pressure box 1, the two sets of first guide rollers 6 on the left, the second guide roller 7 on the left, and the traction structure 8. The vacuum pump 3 is started to create a negative pressure in the recovery box 2, which in turn creates a negative pressure state below the negative pressure box 1. Solvent containing dissolved resin is poured into the impregnation tank 5, so that the solvent submerges the fiber fabric, the negative pressure box 1, and the first guide rollers 6 in the impregnation tank 5. The fiber fabric moves forward under the drive of the traction structure 8. The solvent containing resin quickly penetrates into the fiber fabric passing below the negative pressure box 1 under the negative pressure. Excess solvent flows into the negative pressure box 1 and enters the recovery box 2 through the pipe. When the solvent in the recovery box 2 accumulates to a certain amount, the solenoid valve on the inlet pipe of the liquid pump 4 is opened, and the liquid pump 4 is started to pump the solvent back to the impregnation tank 5 through the return pipe, realizing the recycling of resin.
[0023] Example 2: Based on Example 1, this example details the traction structure 8. The traction structure 8 includes a first support 81 and a second support 84. The first support 81 is fixed to the top left of the impregnation tank 5. The first support 81 is approximately arched, and a horizontally positioned main roller 82 is rotatably mounted on its inner side via bearings. A reduction motor 83 is mounted on the first support 81, connected to a control cabinet. The output shaft of the reduction motor 83 is connected to the shaft of the main roller 82, driving the main roller 82 to rotate, thereby traction and movement of the fiber fabric. Vertical guide rods are provided on both the left and right sides of the first support 81. The second support 84 has two guide holes. These two guide holes are slidably installed between the two guide rods of the first bracket 81, and the second bracket 84 is located directly above the main roller 82. The second bracket 84 is also approximately arched, and an auxiliary roller 85 parallel to the main roller 82 is rotatably installed on its inner side via bearings. A hydraulic cylinder 86 is installed on the top of the first bracket 81. The hydraulic cylinder 86 is connected to an external hydraulic control system, which is connected to a control cabinet. The output rod of the hydraulic cylinder 86 is fixed to the top of the second bracket 84. The lifting and retraction direction of the output rod of the hydraulic cylinder 86 is parallel to the guide rod of the first bracket 81. The distance between the auxiliary roller 85 and the main roller 82 can be adjusted by the extension and retraction of the hydraulic cylinder 86 to accommodate fiber fabrics of different thicknesses and materials, and to ensure the traction effect.
[0024] During operation, the hydraulic cylinder 86 is activated according to the thickness of the fiber fabric, causing the output rod of the hydraulic cylinder 86 to extend or retract, driving the second bracket 84 to move up and down along the guide rod of the first bracket 81, thereby adjusting the distance between the auxiliary roller 85 and the main roller 82, ensuring that the fiber fabric can be stably clamped and pulled forward. The reduction motor 83 is activated to drive the main roller 82 to rotate, thereby driving the fiber fabric to move forward, and the negative pressure structure enables the rapid penetration of resin.
[0025] Example 3: This example further optimizes some structures based on Example 1. An observation port is provided at the top of the recycling tank 2, and a sealing cap is threaded onto the observation port. The sealing cap is a transparent plastic cap, allowing operators to directly observe the resin level and status inside the recycling tank 2 through the observation port, facilitating timely understanding of the resin recycling process. A drain port is provided at the bottom of the recycling tank 2, and a solenoid valve is installed on the drain port. When it is necessary to clean or replace the resin inside the recycling tank 2, the solenoid valve on the drain port can be opened to drain the resin. The interior of the recycling tank 2 is equipped with… A liquid level sensor is connected to the control cabinet. When the resin level in the recovery tank 2 reaches a certain height, the liquid level sensor sends a signal to the control cabinet. The control cabinet then starts the liquid pump 4 to pump the resin in the recovery tank 2 back to the impregnation tank 5, achieving automated control and preventing resin from overflowing from the recovery tank 2. Heating wires and a stirrer can be embedded in the inner wall of the impregnation tank 5. When using relatively viscous resins such as epoxy resin for impregnation, heating can reduce its viscosity to facilitate impregnation. A filter screen can be installed in the connecting pipe between the recovery tank 2 and the liquid pump 4 to filter the recovered solvent.
[0026] Example 4: In actual production, different types and specifications of fiber fabrics may have different requirements for resin penetration. The buffer layer fiber impregnation resin penetration device of this example can adjust the resin penetration according to actual needs. For example, for some thinner fiber fabrics, the vacuum pump 3 can be adjusted by the control cabinet to appropriately reduce the negative pressure under the negative pressure box 1, so as to avoid deformation or damage to the fiber fabric due to excessive negative pressure. At the same time, the distance between the auxiliary roller 85 and the main roller 82 can be adjusted by the hydraulic cylinder 86 to make the traction force moderate and ensure that the fiber fabric moves smoothly in the device. For some thicker fiber fabrics, the vacuum pump 3 can be appropriately increased to enhance the negative pressure and allow the resin to penetrate into the fiber fabric better.
[0027] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A resin permeation device for impregnating a buffer layer fiber, comprising a negative pressure structure, characterized in that: The negative pressure structure is installed on the impregnation tank (5), and includes a negative pressure box (1), a recovery box (2), a vacuum pump (3), and a liquid pump (4). The negative pressure box (1) is fixed in the middle of the inner side of the impregnation tank (5). The recovery box (2) and the liquid pump (4) are both located next to the impregnation tank (5). The top of the negative pressure box (1) is connected to the top of the recovery box (2) through a pipe. The liquid inlet of the liquid pump (4) is connected to the bottom of the recovery box (2) through a pipe, and a solenoid valve is installed on the pipe. The liquid pump (4) discharges liquid. The end is connected to a return pipe, and the return pipe leads to the top of the impregnation tank (5). The vacuum pump (3) is set at the top of the recovery box (2). The air inlet of the vacuum pump (3) is connected to the top of the recovery box (2) through a pipe. Four horizontally arranged first guide rollers (6) are installed on the inner side of the impregnation tank (5) through bearings. Horizontally arranged second guide rollers (7) are installed on the left and right sides of the top of the impregnation tank (5) through bearing seats. A traction structure (8) is installed on the left side of the top of the impregnation tank (5).
2. A device for impregnating a fibrous batt with a resin according to claim 1, wherein: The traction structure (8) includes a first bracket (81) and a second bracket (84). The first bracket (81) is approximately arched, and a horizontally arranged main roller (82) is rotatably mounted on its inner side via bearings. A reduction motor (83) is mounted on the first bracket (81), and the output shaft of the reduction motor (83) is connected to the shaft of the main roller (82). The second bracket (84) is also approximately arched, and it is slidably mounted on the inner side of the first bracket (81) and located directly above the main roller (82). A secondary roller (85) parallel to the main roller (82) is rotatably mounted on the inner side of the second bracket (84) via bearings. A hydraulic cylinder (86) is mounted on the top of the first bracket (81), and the output rod of the hydraulic cylinder (86) is fixed on the top of the second bracket (84).
3. A device for impregnating a fibrous batt with a resin according to claim 1, wherein: The negative pressure box (1) is a rectangular box with multiple evenly distributed through holes at the bottom. The left and right edges of the bottom of the box are rounded.
4. The device of claim 1, wherein: The top of the recycling box (2) is provided with an observation port, and a sealing cap is connected to the observation port by a thread. The bottom of the recycling box (2) is provided with a drain port, and a solenoid valve is installed on the drain port. A liquid level sensor is installed inside the recycling box (2).
5. A device for impregnating a fibrous batt with a resin according to claim 1, wherein: The four first guide rollers (6) are located in pairs on the left and right sides of the negative pressure box (1).
6. A device for impregnating a fibrous batt with a resin according to claim 1, wherein: A control cabinet is located next to the impregnation tank (5), and the vacuum pump (3), liquid pump (4) and traction structure (8) are all connected to the control cabinet.
7. A device for impregnating a fibrous batt with a resin according to claim 2, wherein: The first bracket (81) has vertical guide rods on both the left and right sides. The second bracket (84) has two guide holes. The second bracket (84) is slidably installed between the two guide rods of the first bracket (81) through these two guide holes. The lifting and retraction direction of the output rod of the hydraulic cylinder (86) is parallel to the guide rod of the first bracket (81).