Coating device for carbon fiber thermoplastic prepreg

Abstract

The utility model discloses a carbon fiber thermoplastic prepreg coating device which comprises a coating seat and an extruding machine body, the extruding machine body is arranged at the top of the coating seat, two movable rollers are arranged at the top of the coating seat, a conveying belt is installed between the inner walls of the two movable rollers in a transmission mode, a feeding hopper is arranged at the top of the extruding machine body, and the feeding hopper is arranged on the top of the extruding machine body. A material guiding pipe is arranged on one side of the extruding machine body, two bottom frames are arranged at the bottom of the extruding machine body, supporting rods are arranged in the two bottom frames correspondingly, and a storage box is arranged at the bottom of the material guiding pipe. The extruder body guides molten resin into the storage box through the material guide pipe, the quality of the carbon fiber yarn thermoplastic prepreg is improved, the position height of the storage box can be adjusted, the heights of the multiple coating pipes can be adjusted according to the thickness of the carbon fiber yarn, and the application range of the coating device is widened.

Description

Technical Field

[0001] The utility model relates to the technical field of coating devices, in particular to a coating device for carbon fiber thermoplastic prepreg. Background Art

[0002] Carbon fiber is a new type of fibrous carbon material. It has the mechanical, thermal and electrical properties of high strength, low density, corrosion resistance, high temperature resistance and conductivity. Therefore, it is widely used in aerospace, national defense, military industry, electricity, sports and many other fields. Carbon fiber prepreg is an intermediate product in the production and processing of most carbon fiber products. Carbon fiber prepreg is a composite of epoxy resin on carbon fiber through high pressure and high temperature technology. It is called prepreg because it is only the initial impregnation of resin and carbon fiber. The thermoplastic resin is extruded through an extruder and enters the molding die together with the carbon fiber yarn. The resin is coated on the carbon fiber yarn using a roller.

[0003] Patent publication number CN207930915U discloses a coating device for carbon fiber prepreg, including a platform and a base, wherein the base is provided with an extruder and a coating roller, a first rotating rod is provided at the front and rear ends of the coating roller, movable rollers are symmetrically provided on the left and right sides of the top of the platform, carbon fiber yarn is provided on the movable rollers, a second rotating rod is provided at the front and rear ends of the movable rollers, and a top plate is provided above the platform.

[0004] In the above technology, the extruder squeezes the molten resin onto the coating roller, which can evenly coat the resin on the carbon fiber yarn. However, when the coating roller coats the resin, the resin tends to flow over a large area on the base, causing waste of resin. The thickness of the carbon fiber yarn is also different, and the distance between the coating roller and the carbon fiber yarn cannot be effectively adjusted, which reduces the use range of the coating device. Therefore, innovation is made in this technology. Utility Model Content

[0005] The purpose of the utility model is to provide a coating device for carbon fiber thermoplastic prepreg to solve the problem proposed in the above background technology that the resin easily flows on a large area on the base and the distance between the coating roller and the carbon fiber yarn cannot be effectively adjusted.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a coating device for carbon fiber thermoplastic prepreg, comprising a coating seat and an extruder body, the extruder body is arranged on the top of the coating seat, two movable rollers are arranged on the top of the coating seat, a conveyor belt is installed between the inner walls of the two movable rollers, a feeding hopper is arranged on the top of the extruder body, a material guide pipe is arranged on one side of the extruder body, two base frames are arranged at the bottom of the extruder body, support rods are arranged inside the two base frames, a storage box is arranged at the bottom of the material guide pipe, a plurality of coating tubes are arranged at the bottom of the storage box, a moving block is sleeved on one end of the two support rods, and a collection box is arranged on the top of the coating seat.

[0007] As a preferred technical solution of the present invention, the two moving blocks are movably mounted on one end of the two support rods respectively, a bonding plate is fixedly installed between the inner walls of the two moving blocks, and the storage box is located on the top of the bonding plate.

[0008] As an optimal technical solution of the present invention, the bottom of the bonding plate is fixedly connected with a coating plate, the top of the coating plate is connected with the bottom of the storage box, and one end of several coating tubes are connected with the bottom of the coating plate respectively.

[0009] As a preferred technical solution of the present invention, the coating tubes are arranged at equal intervals.

[0010] As a preferred technical solution of the present invention, circular holes are provided on both sides of the two moving blocks, multiple limiting holes are provided on both sides of the two base frames, and two extension rods are fixedly installed on one side of the collection box.

[0011] As a preferred technical solution of the present invention, limiting strips are provided on both sides of the two base frames, and one end of the four limiting strips is respectively connected to the internal threads of the plurality of limiting holes and the four circular holes.

[0012] As a preferred technical solution of the present invention, the positions of the two adjacent limit strips are corresponding to each other.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] 1. The utility model provides a coating device for carbon fiber thermoplastic prepreg, which is provided with a moving block, a bonding plate, a storage box, a coating plate, a coating tube, a collecting box and a conveyor belt. The extruder body guides the molten resin to the interior of the storage box through the guide tube, and the molten resin is sprayed onto the carbon fiber yarn on the conveyor belt along the inner surfaces of the several coating tubes. The coordinated use of the several coating tubes increases the area of ​​molten resin coating and improves the quality of the carbon fiber yarn thermoplastic prepreg. The excess resin can continue to flow to the interior of the collecting box for collection under the action of gravity. By moving the two moving blocks, the position height of the storage box can be adjusted, and the height of the several coating tubes can be adjusted according to the thickness of the carbon fiber yarn, thereby increasing the scope of use of the coating device.

[0015] 2. The utility model provides a coating device for carbon fiber thermoplastic prepreg, which is equipped with a support rod, a limit strip, a limit hole, an extension rod and a round hole. Two moving blocks can move up and down at one end of the corresponding support rod. As the moving block moves, the bonding plate will be driven to move synchronously, and then the storage box will be driven to move up and down. After several coating tubes reach the appropriate position, one end of the four limit strips will be embedded into the inside of the round hole and the limit hole, and the three will be threadedly connected, so that the base frame and the moving block can be fixed. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a front view structural diagram of the utility model;

[0017] Figure 2 For the utility model Figure 1 Enlarged view of point A in the middle;

[0018] Figure 3 This is a side structural diagram of the present utility model;

[0019] Figure 4 It is a partial bottom view structural diagram of the present invention.

[0020] In the figure: 1. Coating seat; 2. Moving roller; 3. Conveyor belt; 4. Extruder body; 5. Feed hopper; 6. Material guide pipe; 7. Base frame; 8. Support rod; 9. Moving block; 10. Laminating plate; 11. Storage box; 12. Coating plate; 13. Coating tube; 14. Limiting strip; 15. Limiting hole; 16. Collection box; 17. Extension rod. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] See also Figure 1-4 The present invention provides a technical solution for a coating device for carbon fiber thermoplastic prepreg:

[0023] Example 1:

[0024] like Figure 1-3 As shown, a coating device for carbon fiber thermoplastic prepreg includes a coating seat 1 and an extruder body 4, the extruder body 4 is arranged on the top of the coating seat 1, and two moving rollers 2 are arranged on the top of the coating seat 1, and a conveyor belt 3 is installed for transmission between the inner walls of the two moving rollers 2, a feeding hopper 5 is arranged on the top of the extruder body 4, a material guide pipe 6 is arranged on one side of the extruder body 4, and two base frames 7 are arranged at the bottom of the extruder body 4. Support rods 8 are arranged inside the two base frames 7, a storage box 11 is arranged at the bottom of the material guide pipe 6, and several coating tubes 13 are arranged at the bottom of the storage box 11, and one end of the two support rods 8 is sleeved with a moving block 9, and a collection box 16 is arranged on the top of the coating seat 1. Excess resin can continue to flow to the inside of the collection box 16 for collection under the action of gravity. By moving the two moving blocks 9, the position height of the storage box 11 can be adjusted, and the height of several coating tubes 13 can be adjusted according to the thickness of the carbon fiber yarn, thereby increasing the scope of use of the coating device.

[0025] Example 2:

[0026] Based on the first embodiment, Figure 1 and Figure 4 As shown, round holes are provided on both sides of the two moving blocks 9, and multiple limiting holes 15 are provided on both sides of the two base frames 7. Two extension rods 17 are fixedly installed on one side of the collecting box 16. As the moving block 9 moves, the bonding plate 10 will be driven to move synchronously, and then the storage box 11 will be driven to move up and down. After several coating tubes 13 reach the appropriate position, one end of the four limiting strips 14 will be embedded into the inside of the round hole and the limiting hole 15, and the three are threadedly connected.

[0027] Working principle: Carbon fiber is a new type of fibrous carbon material. It has the mechanical, thermal and electrical properties of high strength, low density, corrosion resistance, high temperature resistance and electrical conductivity. Therefore, it is widely used in aerospace, national defense, electric power and sports fields. Carbon fiber thermoplastic prepreg is an intermediate product in the production and processing of most carbon fiber products. Carbon fiber prepreg is a composite of epoxy resin on carbon fiber through high pressure and high temperature technology. It is called prepreg because it is only the preliminary impregnation of resin and carbon fiber. The thermoplastic resin is extruded through the extruder body 4 and enters the molding die together with the carbon fiber yarn. The resin is coated on the carbon fiber yarn using the coating tube 13. The carbon fiber yarn can first be placed on the surface of the conveyor belt 3. The conveyor belt 3 is driven by the pulley and the motor. The transmission of the conveyor belt 3 will drive the carbon fiber yarn back and forth. The extruder body 4 guides the molten resin to the inside of the storage box 11 through the guide tube 6. The molten resin The grease is sprayed onto the carbon fiber yarn on the conveyor belt 3 along the inner surfaces of several coating tubes 13. The coordinated use of several coating tubes 13 increases the area of ​​molten resin coating and improves the quality of carbon fiber yarn thermoplastic prepreg. The excess resin can continue to flow to the inside of the collection box 16 for collection under the action of gravity. By moving the two moving blocks 9, the position height of the storage box 11 can be adjusted, and the height of several coating tubes 13 can be adjusted according to the thickness of the carbon fiber yarn, thereby increasing the use range of the coating device. The two moving blocks 9 can move up and down at one end of the corresponding support rod 8. As the moving blocks 9 move, the bonding plate 10 will be driven to move synchronously, and then the storage box 11 will be driven up and down. After the several coating tubes 13 reach the appropriate position, one end of the four limit strips 14 will be embedded into the inside of the circular hole and the limit hole 15 respectively, and the three are threadedly connected, so that the base frame 7 and the moving blocks 9 can be fixed.

[0028] In the description of the present invention, it should be understood that the indicated orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present invention.

[0029] In the present invention, unless otherwise clearly specified and limited, for example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly specified and limited, ordinary technicians in this field can understand the specific meanings of the above terms in the present invention according to specific circumstances.

[0030] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A coating device for carbon fiber thermoplastic prepreg, comprising a coating seat (1) and an extruder body (4), wherein the extruder body (4) is arranged on top of the coating seat (1), characterized in that: Two movable rollers (2) are provided on the top of the coating seat (1), and a conveyor belt (3) is installed between the inner walls of the two movable rollers (2). A feeding hopper (5) is provided on the top of the extruder body (4), and a material guide pipe (6) is provided on one side of the extruder body (4). Two base frames (7) are provided at the bottom of the extruder body (4), and support rods (8) are provided inside the two base frames (7). A storage box (11) is provided at the bottom of the material guide pipe (6), and a plurality of coating tubes (13) are provided at the bottom of the storage box (11). One end of each of the two support rods (8) is provided with a movable block (9). A collection box (16) is provided on the top of the coating seat (1).

2. The carbon fiber thermoplastic prepreg coating device according to claim 1, characterized in that: The two moving blocks (9) are movably mounted on one end of the two support rods (8), respectively; a bonding plate (10) is fixedly installed between the inner walls of the two moving blocks (9); and the storage box (11) is located on the top of the bonding plate (10).

3. The carbon fiber thermoplastic prepreg coating device according to claim 2, characterized in that: The bottom of the laminating plate (10) is fixedly connected with a coating plate (12), the top of the coating plate (12) is connected with the bottom of the storage box (11), and one end of a plurality of coating tubes (13) is connected with the bottom of the coating plate (12).

4. The carbon fiber thermoplastic prepreg coating device according to claim 3, characterized in that: The coating tubes (13) are arranged at equal intervals.

5. The carbon fiber thermoplastic prepreg coating device according to claim 1, characterized in that: Circular holes are provided on both sides of the two moving blocks (9), a plurality of limiting holes (15) are provided on both sides of the two base frames (7), and two extension rods (17) are fixedly mounted on one side of the collecting box (16).

6. The carbon fiber thermoplastic prepreg coating device according to claim 5, characterized in that: Limiting bars (14) are provided on both sides of the two base frames (7), and one end of the four limiting bars (14) is respectively connected to the internal threads of the plurality of limiting holes (15) and the four circular holes.

7. The carbon fiber thermoplastic prepreg coating device according to claim 6, characterized in that: The positions of the two adjacent limiting strips (14) are corresponding to each other.

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