A carbon fiber cylinder felt curing apparatus

Abstract

The utility model discloses a kind of carbon fiber cylinder felt curing equipment, belong to carbon fiber felt curing technical field, to solve the problem of the quality defect of "edge embrittlement" or "intermediate not melting" in existing technology, including net conveyor, the upper end of net conveyor is provided with furnace cover, the front and rear ends of net conveyor are provided with curing mechanism, and the curing mechanism includes the U-shaped pipe that is fixedly connected to the front and rear ends of the upper portion of net conveyor at equal distance, the inner side of the pipe mouth of U-shaped pipe one end is fixedly connected with fixed plate, motor is installed in the middle position of the side close to the interior of U-shaped pipe of fixed plate, and the output shaft end of motor is fixedly connected with fan blade.

Description

Technical Field

[0001] This utility model belongs to the field of carbon fiber felt curing technology, specifically relating to a carbon fiber cylindrical felt curing device. Background Technology

[0002] After carbon fiber cylindrical felt is wound to a fixed size, the resin inside the cylinder is not cured because there is no heat source during the winding process. Heating is required to cure the resin inside the carbon fiber felt, thus ensuring the cylinder is cured and set. Typically, a tunnel furnace is used for heating and curing large quantities of carbon fiber cylindrical felt.

[0003] The curing process involves using a modified thermoplastic resin with a melting point of 120-220℃ as a binder. Resin micropowder is adhered to the surface of the carbon fiber felt through electrostatic adsorption or powder coating. The felt is then fed into a tunnel furnace, sequentially passing through a preheating zone, a melting zone, and a cooling zone for continuous curing and molding. An air duct system, equipped with symmetrical heating elements and air nozzles, is installed at both the top and bottom of the tunnel furnace. Hot air is simultaneously injected from both the top and bottom onto the carbon fiber felt, creating a "counter-flow" airflow that penetrates the felt body for synchronous heating from both ends.

[0004] However, since the furnace walls on both sides of the tunnel furnace are in direct contact with the external environment, heat is lost to the outside through the furnace walls, resulting in the actual effective heat in the two sides being lower than that in the middle. As a result, temperature deviations are likely to occur in the two sides of the tunnel furnace, leading to insufficient melting or over-curing of the resin at the edge of the carbon fiber felt, resulting in quality defects such as "edge embrittlement" or "unmelted center". Utility Model Content

[0005] (1) Technical problems to be solved

[0006] To address the shortcomings of existing technologies, the purpose of this utility model is to provide a carbon fiber cylindrical felt curing device. This device aims to solve the problem that in existing technologies, because the furnace walls on both sides of the tunnel furnace are in direct contact with the external environment, heat is dissipated to the outside through the furnace walls, resulting in lower actual effective heat in the side areas compared to the center. Consequently, temperature deviations easily occur in the side areas of the tunnel furnace, leading to insufficient resin melting or over-curing at the edges of the carbon fiber felt, resulting in quality defects such as "edge embrittlement" or "unmelted center".

[0007] (2) Technical solution

[0008] To solve the above-mentioned technical problems, this utility model provides a carbon fiber cylindrical felt curing device, including a mesh conveyor, a furnace hood at the upper end of the mesh conveyor, curing mechanisms at the front and rear ends of the mesh conveyor, and the curing mechanism including U-shaped tubes fixedly connected at equal distances to the front and rear ends above the mesh conveyor. A fixing plate is fixedly connected to the inner side of the opening of one end of the U-shaped tube, a motor is installed at the middle position of the side of the fixing plate near the inside of the U-shaped tube, a fan blade is fixedly connected to the output shaft end of the motor, a heating resistance wire is fixedly connected to the middle position of the inner side of the U-shaped tube, and an auxiliary unit is provided at the upper end of the furnace hood.

[0009] Furthermore, the auxiliary unit includes a sliding plate connected to the inner side of the furnace hood. A threaded rod is fixedly connected to the middle position of the upper end of the sliding plate. A round tube is connected to the outer side of the upper end of the threaded rod. Side plates are fixedly connected to the front and rear ends of the lower side of the sliding plate. A round shaft is fixedly connected to the lower end of one of the two adjacent side plates. A pressure roller is connected to the outer side of the round shaft.

[0010] Furthermore, on the inner sides of the two ends of the U-shaped pipe above the mesh conveyor, staggered fixing plates are installed.

[0011] Furthermore, the upper end of the U-shaped tube is located above the workpiece bearing surface of the conveying mesh above the mesh conveyor, and the lower end of the U-shaped tube is located below the workpiece bearing surface of the conveying mesh above the mesh conveyor.

[0012] Furthermore, the front and rear sides of the sliding plate are slidably connected to the front and rear ends of the inner side of the furnace hood.

[0013] Furthermore, the pressure roller has a through-hole inside, and the two side plates at the lower end of the sliding plate are slidably connected to the front and rear sides of the pressure roller. The outer side of the circular shaft is rotatably connected to the inner side of the through-hole.

[0014] Furthermore, the furnace hood has sliding holes at equal intervals at the middle of its upper end. The outer side of the threaded rod is slidably connected to the inner side of the sliding hole. The inner side of the round tube has an internal thread. The outer side of the threaded rod is threadedly connected to the inner side of the round tube. The lower side of the round tube abuts against the upper side of the furnace hood. The lower outer end of the pressure roller is tumblingly connected to the upper side of the carbon fiber felt.

[0015] (3) Beneficial effects

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0017] This invention features a curing mechanism in which a motor drives a fan blade to rotate, which, in conjunction with a heating resistance wire, quickly and evenly transfers heat to the carbon fiber felt. The special design of the U-shaped tube and the staggered installation of the fixing plates ensure that the hot airflow is evenly distributed on both the upper and lower sides of the carbon fiber felt, solving the problem of uneven heating in traditional tunnel furnaces and guaranteeing the consistency of the quality of the cured carbon fiber felt.

[0018] This invention, by setting up an auxiliary unit, allows the pressure roller to compact the carbon fiber felt by adjusting its height, preventing wrinkles and displacement during the curing process. This ensures the flatness and positional stability of the carbon fiber felt during curing and improves the product qualification rate. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the structure of the mesh conveyor of this utility model;

[0022] Figure 3 This is a schematic diagram of the internal structure of the U-shaped tube of this utility model;

[0023] Figure 4 This is a schematic diagram of the internal structure of the furnace hood of this utility model;

[0024] Figure 5 This is a schematic diagram of the auxiliary unit of this utility model.

[0025] The labels in the attached diagram are as follows: 1. Mesh conveyor; 2. Furnace hood; 301. U-shaped tube; 302. Fixed plate; 303. Motor; 304. Fan blade; 305. Heating resistance wire; 401. Sliding plate; 402. Threaded rod; 403. Round tube; 404. Side plate; 405. Round shaft; 406. Pressure roller. Detailed Implementation

[0026] 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.

[0027] This specific embodiment is a carbon fiber cylindrical felt curing device, the structural schematic diagram of which is shown below. Figures 1 to 3 As shown, the system includes a mesh conveyor 1, with a furnace hood 2 at the top. Curing mechanisms are located at both the front and rear ends of the mesh conveyor 1. Each curing mechanism includes U-shaped tubes 301 fixedly connected at equal intervals to the front and rear ends of the mesh conveyor 1. A fixing plate 302 is fixedly connected to the inner side of one end of each U-shaped tube 301. A motor 303 is installed at the middle of the side of the fixing plate 302 closest to the inside of the U-shaped tube 301. A fan blade 304 is fixedly connected to the output shaft of the motor 303. Fixing plates 302 are installed alternately on the inner sides of the openings at both ends of the U-shaped tubes 301 above the mesh conveyor 1, so that the fan blades 304 on the inner sides of two adjacent U-shaped tubes 301 above the mesh conveyor 1 are at different heights.

[0028] A heating resistance wire 305 is fixedly connected to the middle of the inner side of the U-shaped tube 301. The upper end of the U-shaped tube 301 is located above the workpiece bearing surface of the conveyor belt above the mesh conveyor 1, and the lower end of the U-shaped tube 301 is located below the workpiece bearing surface of the conveyor belt above the mesh conveyor 1. Therefore, when the motor 303 in the U-shaped tube 301 is turned on, its output shaft rotates, driving the fan blades 304 to rotate. Airflow is blown from one end of the U-shaped tube 301 where the fan blades 304 are installed onto the surface of the carbon fiber felt. The blown airflow is then drawn into the other end of the U-shaped tube 301, heated by the heating resistance wire 305, and then blown back to the other side of the carbon fiber felt. This causes the hot airflow to circulate and blow on both sides of the carbon fiber felt. Furthermore, because the fan blades 304 in adjacent U-shaped tubes 301 are staggered, the air outlets of adjacent U-shaped tubes 301 are opposite, allowing the heat generated by the heating resistance wire 305 to be quickly and evenly blown onto the carbon fiber felt, achieving efficient heating of the carbon fiber felt and improving heating uniformity.

[0029] Cooperate Figure 4 and Figure 5As shown, an auxiliary unit is provided at the upper end of the furnace hood 2. The auxiliary unit includes a sliding plate 401 connected to the inner side of the furnace hood 2. The front and rear sides of the sliding plate 401 are slidably connected to the front and rear ends of the inner side of the furnace hood 2. A threaded rod 402 is fixedly connected to the middle position of the upper end of the sliding plate 401. A round tube 403 is connected to the outer side of the upper end of the threaded rod 402. Side plates 404 are fixedly connected to the front and rear ends of the lower side of the sliding plate 401. A round shaft 405 is fixedly connected to the lower end of the adjacent side of the two side plates 404. A pressure roller 406 is connected to the outer side of the round shaft 405. A through-hole is opened inside the pressure roller 406. The adjacent side of the two side plates 404 at the lower end of the sliding plate 401 is slidably connected to the front and rear sides of the pressure roller 406. The outer side of the round shaft 405 is rotatably connected to the inner side of the through-hole. This allows the pressure roller 406 to rotate only between the side plates 404 around the round shaft 405.

[0030] The furnace hood 2 has equidistant sliding holes at the middle of its upper end. The outer side of the threaded rod 402 is slidably connected to the inner side of the sliding holes. The inner side of the circular tube 403 has internal threads, and the outer side of the threaded rod 402 is threadedly connected to the inner side of the circular tube 403. The lower side of the circular tube 403 abuts against the upper side of the furnace hood 2. The lower outer end of the pressure roller 406 is rolledly connected to the upper side of the carbon fiber felt. By rotating the circular tube 403, the threaded rod 402 moves along the inner side of the sliding holes, causing the height of the lower pressure roller 406 to change. This changes the distance between the pressure roller 406 and the workpiece bearing surface of the conveyor mesh on the mesh conveyor 1, facilitating the compression of carbon fiber felt of different thicknesses.

[0031] Working principle: When curing carbon fiber felt, the carbon fiber felt is first placed on the conveyor mesh of mesh conveyor 1. The equipment is started, and the mesh conveyor 1 begins to operate, driving the carbon fiber felt into the furnace hood 2. At this time, the motor 303 in the curing mechanism starts, driving the fan blades 304 to rotate. The heating resistance wire 305 is energized and heats up. The fan blades 304 blow heat onto the carbon fiber felt. Due to the fixed plates 302 installed alternately on the inner sides of the two ends of the U-shaped tube 301, the hot airflow is evenly distributed on the upper and lower sides of the carbon fiber felt, achieving simultaneous and uniform heating of both ends of the carbon fiber felt. After the carbon fiber felt enters the furnace hood 2, according to the thickness of the carbon fiber felt and the process requirements, the round tube 403 in the auxiliary unit is rotated. Through the threaded rod 402, the sliding plate 401 is moved up and down, thereby adjusting the height of the pressure roller 406, so that the pressure roller 406 applies appropriate pressure to the carbon fiber felt, ensuring the flatness and positional stability of the carbon fiber felt during the curing process. During the entire curing process, the carbon fiber felt, driven by the mesh conveyor 1, passes through different areas in the furnace hood 2 in sequence, completing the preheating, curing and other process steps. Finally, the cured carbon fiber felt product is output from the other end of the mesh conveyor 1 and then rolled into a cylindrical felt.

[0032] All technical features in this embodiment can be freely combined according to actual needs.

[0033] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present 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 the present utility model should be included within the protection scope of the present utility model.

Claims

1. A carbon fiber cylindrical felt curing device, comprising a mesh conveyor (1), characterized in that, The upper end of the mesh conveyor (1) is provided with a furnace cover (2). The front and rear ends of the mesh conveyor (1) are provided with curing mechanisms. The curing mechanism includes U-shaped tubes (301) that are fixedly connected at equal distances to the front and rear ends of the mesh conveyor (1). A fixing plate (302) is fixedly connected to the inner side of the opening of one end of the U-shaped tube (301). A motor (303) is installed at the middle position of the side of the fixing plate (302) near the inside of the U-shaped tube (301). A fan blade (304) is fixedly connected to the output shaft end of the motor (303). A heating resistance wire (305) is fixedly connected to the middle position of the inner side of the U-shaped tube (301). An auxiliary unit is provided at the upper end of the furnace cover (2).

2. The carbon fiber cylindrical felt curing equipment according to claim 1, characterized in that, The auxiliary unit includes a sliding plate (401) connected to the inner side of the furnace hood (2). A threaded rod (402) is fixedly connected to the middle position of the upper end of the sliding plate (401). A round tube (403) is connected to the outer side of the upper end of the threaded rod (402). Side plates (404) are fixedly connected to the front and rear ends of the lower side of the sliding plate (401). A round shaft (405) is fixedly connected to the lower end of the adjacent side of the two side plates (404). A pressure roller (406) is connected to the outer side of the round shaft (405).

3. The carbon fiber cylindrical felt curing equipment according to claim 1, characterized in that, Inside the two ends of the U-shaped pipe (301) above the mesh conveyor (1), the fixing plates (302) are installed in an alternating manner.

4. The carbon fiber cylindrical felt curing equipment according to claim 1, characterized in that, The upper end of the U-shaped tube (301) is located above the workpiece bearing surface of the conveying mesh above the mesh conveyor (1), and the lower end of the U-shaped tube (301) is located below the workpiece bearing surface of the conveying mesh above the mesh conveyor (1).

5. The carbon fiber cylindrical felt curing equipment according to claim 2, characterized in that, The front and rear sides of the sliding plate (401) are slidably connected to the front and rear ends of the inner side of the furnace cover (2).

6. The carbon fiber cylindrical felt curing equipment according to claim 2, characterized in that, The pressure roller (406) has a through hole running from front to back inside. The two side plates (404) at the lower end of the sliding plate (401) are slidably connected to the front and rear sides of the pressure roller (406) on one side. The outer side of the round shaft (405) is rotatably connected to the inner side of the through hole.

7. The carbon fiber cylindrical felt curing equipment according to claim 2, characterized in that, The furnace hood (2) has sliding holes at equal intervals at the middle of its upper end. The outer side of the threaded rod (402) is slidably connected to the inner side of the sliding hole. The inner side of the round tube (403) is provided with internal threads. The outer side of the threaded rod (402) is threadedly connected to the inner side of the round tube (403). The lower side of the round tube (403) abuts against the upper side of the furnace hood (2). The lower outer end of the pressure roller (406) is tumbled to the upper side of the carbon fiber felt.

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