Coating equipment for carbon fiber material

Abstract

The utility model relates to the technical field of carbon fiber material coating, in particular to carbon fiber material coating equipment which comprises a coating box and a coating cavity formed in the top of the coating box, a discharging pipe communicated with the bottom of the coating cavity is installed at the bottom of the coating box, and a valve is installed in the discharging pipe. The rotating assembly comprises a rotating rod rotationally installed between the two opposite inner cavity walls of the coating cavity, the limiting assembly comprises four fixing bases fixedly installed on the outer rod wall of the rotating rod, the four fixing bases are symmetrically distributed on the two sides of the rotating rod in a pairwise parallel mode, and a first roller and a second roller are rotationally installed between the two fixing bases located on the same side of the rotating rod; the distance between the first roller and the corresponding second roller is adjustable, a coating material is forced to permeate to the edge of the fiber through high-frequency swing, the problem of poor edge coating of traditional equipment is solved, the adjustable roller distance design is compatible with materials with different widths, and the limiting structure ensures the swing stability of the carbon fiber material.

Description

Technical Field

[0001] This utility model relates to the field of carbon fiber material coating technology, and specifically to a carbon fiber material coating device. Background Technology

[0002] Carbon fiber materials are widely used in aerospace, automobile manufacturing and other fields due to their excellent properties such as high strength and lightweight.

[0003] In the carbon fiber production process, it is often necessary to coat its surface with functional coatings such as resins and adhesives to enhance its composite performance. Traditional coating equipment usually adopts fixed roller pressing or immersion methods, which have problems such as uneven coating, easy accumulation at both ends of the material or missed coating, affecting product quality.

[0004] In existing technologies, some equipment improves uniformity by increasing the number of roller presses or adjusting the coating speed, but cannot effectively solve the problem of poor coating quality at the edges of carbon fiber materials;

[0005] Therefore, there is an urgent need for a device that can dynamically control the coating at both ends of carbon fiber materials to improve coating effect and process stability. Utility Model Content

[0006] In view of the above-mentioned shortcomings of the existing technology, the present invention provides a coating device for carbon fiber materials, which can effectively solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] This utility model provides a coating device for carbon fiber materials, including a coating box and a coating cavity opened at the top of the coating box. A feeding pipe connected to the bottom of the coating cavity is installed at the bottom of the coating box. A valve is installed inside the feeding pipe. The rotating assembly includes a rotating rod rotatably installed between two opposite inner walls of the coating cavity. The limiting assembly includes four fixed seats fixedly installed on the outer wall of the rotating rod. The four fixed seats are symmetrically distributed in pairs on both sides of the rotating rod. A first roller and a second roller are rotatably installed between two fixed seats on the same side of the rotating rod. The distance between the first roller and the corresponding second roller is adjustable.

[0009] Furthermore, two symmetrically distributed support frames are vertically fixedly installed on the bottom of the coating box, and two columns are vertically fixedly installed on the top of the coating box. A discharge roller is rotatably installed between the two columns.

[0010] Furthermore, the rotating assembly also includes a servo motor fixedly installed on the outside of the coating box, a coupling is installed between the output end of the servo motor and the end of the rotating rod, and a mounting bracket is vertically fixed between the outer wall of the rotating rod and the corresponding fixed seat.

[0011] Furthermore, each of the four fixed seats has a mounting hole on the side near the corresponding first roller, and each of the four fixed seats has a through hole on both sides.

[0012] Furthermore, the two ends of the two first rollers are rotatably installed in corresponding mounting holes, and the two ends of the two second rollers are rotatably installed with connectors. The four connectors pass through the corresponding through holes and are threaded with nuts. The four nuts are respectively set tightly against the outside of the fixed base.

[0013] Furthermore, each of the four connectors is fixedly equipped with a limiting head, and each of the two second rollers has a limiting groove to facilitate the rotation and installation of the limiting head.

[0014] The technical solution provided by this utility model has the following advantages compared with the known prior art:

[0015] 1. Improved coating uniformity: High-frequency oscillation forces the coating material to penetrate to the fiber edge, solving the problem of poor edge coating in traditional equipment;

[0016] 2. Wide adaptability: The adjustable roller spacing design is compatible with materials of different widths, and the limiting structure ensures the stability of the carbon fiber material's swing. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model 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 utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the installation structure of the limiting component and the rotating rod of this utility model;

[0020] Figure 3 This is a schematic diagram of the disassembled structure of the limiting component of this utility model;

[0021] Figure 4 This is a schematic diagram of the connector and limiting head structure of this utility model.

[0022] The labels in the diagram represent:

[0023] 1. Coating box; 11. Feed pipe; 12. Support frame; 13. Column; 14. Discharge roller;

[0024] 21. Servo motor; 22. Rotating rod; 23. Mounting bracket;

[0025] 31. Fixed base; 32. Through hole; 33. Mounting hole; 34. First roller; 35. Second roller; 36. Connector; 37. Nut; 38. Limiting head. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0027] The present invention will be further described below with reference to the embodiments.

[0028] Example 1:

[0029] Reference Figure 1-4 This first embodiment of the present invention discloses a coating device for carbon fiber materials, including a coating box 1 and a coating cavity opened at the top of the coating box 1. A feed pipe 11 connected to the bottom of the coating cavity is installed at the bottom of the coating box 1. The bottom of the coating cavity is tapered to reduce residual dead corners. A valve is installed in the feed pipe 11 to facilitate the control of the discharge of coating liquid. The rotating component includes a rotating rod 22 rotatably installed between two opposite inner walls of the coating cavity. The limiting component includes four fixed seats 31 fixedly installed on the outer wall of the rotating rod 22. The four fixed seats 31 are symmetrically distributed in pairs on both sides of the rotating rod 22. A first roller 34 and a second roller 35 are rotatably installed between two fixed seats 31 on the same side of the rotating rod 22. The distance between the first roller 34 and the corresponding second roller 35 is adjustable to facilitate effective limiting of carbon fiber materials of different thicknesses.

[0030] Example 2:

[0031] Reference Figure 1-4 This is the second embodiment of the present invention. The difference between this embodiment and the first embodiment is that: two symmetrically distributed support frames 12 are vertically fixedly installed on the bottom of the coating box 1, and two columns 13 are vertically fixedly installed on the top of the coating box 1. A discharge roller 14 is rotatably installed between the two columns 13. The discharge roller 14 can conveniently squeeze the excess coating liquid attached to the carbon fiber material back into the coating chamber. The rotating assembly also includes a servo motor 21 fixedly installed on the outside of the coating box 1. A coupling is installed between the output end of the servo motor 21 and the end of the rotating rod 22. A mounting frame 23 is vertically fixedly installed between the outer wall of the rotating rod 22 and the corresponding fixed seat 31.

[0032] Each of the four fixed seats 31 has a mounting hole 33 on the side near the corresponding first roller 34, and a through hole 32 is provided on both sides of the four fixed seats 31. The two ends of the two first rollers 34 are respectively rotatably installed in the corresponding mounting holes 33. The two ends of the two second rollers 35 are each rotatably installed with a connector 36. The four connectors 36 are respectively through the corresponding through holes 32 and are threaded with nuts 37. The four nuts 37 are respectively tightly set on the outside of the fixed seat 31. The ends of the four connectors 36 are fixedly installed with limit heads 38. The ends of the two second rollers 35 are provided with limit grooves to facilitate the rotation of the limit heads 38, ensuring that the two first rollers 34 and the two second rollers 35 can rotate effectively.

[0033] The remaining structure is the same as that in Example 1.

[0034] Working process of carbon fiber material coating equipment

[0035] The coating equipment of this invention uses a rotating component to drive a limiting component to oscillate at high frequency, enabling dynamic adjustment of the carbon fiber material during the coating process, thereby improving coating uniformity, especially optimizing the coating effect at both ends of the material. The specific working process is as follows:

[0036] 1. Equipment preparation stage

[0037] a: Adjust the roller spacing to accommodate the width of the carbon fiber material.

[0038] According to the width of the carbon fiber material to be coated, such as 100mm, the operator manually adjusts the position of the second roller 35, loosens the nut 37 so that the connector 36 can slide in the through hole 32, moves the second roller 35 so that the distance between it and the first roller 34 is slightly greater than the width of the material, such as 105mm, and retightens the nut 37 to ensure that the second roller 35 is fixed.

[0039] b. Installation and positioning of carbon fiber materials

[0040] Carbon fiber material is drawn out from the discharge roller 14 and laid flat into the coating chamber. The two ends of the material are respectively embedded between the first roller 34 and the second roller 35. The carbon fiber material is limited by the gap between the upper and lower rollers. The fit between the limiting head 38 and the limiting groove is adjusted to prevent the material from falling off during the swinging process.

[0041] 2. Coating process stage

[0042] a. Injection of coating material

[0043] Open the feeding system of coating box 1 to allow resin or adhesive to flow into the coating chamber. The coating liquid will naturally cover the surface of the carbon fiber material under the action of gravity.

[0044] b. High-frequency oscillating coating

[0045] The servo motor 21 starts and drives the rotating rod 22 to swing back and forth at a frequency of 10-30Hz with an angle of ±15° through the coupling. The rotating rod 22 drives the fixed base 31 and the first roller 34 and the second roller 35 to swing synchronously, so that the two ends of the carbon fiber material generate high-frequency micro-amplitude vibration. The vibration causes the coating liquid to flow to the edge of the material, avoiding the edge accumulation or missed coating problems caused by traditional coating methods.

[0046] c. Dynamic infiltration and uniform coverage

[0047] Because the ends of the carbon fiber material are fixed by the limiting components, the coating liquid penetrates evenly in the gaps between the fibers during the swinging process. The vibration breaks the surface tension, making it easier for the resin to wet the fiber bundle, reducing bubbles and uncoated areas. The coating liquid forms a uniform film on the surface of the material, and the coating coverage of the edge area is significantly improved.

[0048] 3. Coating completion and waste material recovery

[0049] a: Coating complete

[0050] Once the carbon fiber material reaches the predetermined coating thickness, the servo motor 21 is turned off to stop the oscillation, and the liquid supply valve of the coating box 1 is closed to stop the injection of coating liquid.

[0051] b. Material Removal and Subsequent Processing

[0052] Loosen nut 37 to release the carbon fiber material, remove the coated material from the coating chamber, and proceed to the drying or curing process.

[0053] c. Recycling and utilization of surplus materials

[0054] Excess coating liquid that does not adhere to the material is returned to the storage tank through the feed pipe 11 to reduce waste, clean the coating chamber, and prepare for the next batch of production.

[0055] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of this utility model.

Claims

1. A coating apparatus for carbon fiber materials, characterized by, The coating box (1) and the coating cavity are arranged on the top of the coating box (1), the bottom of the coating box (1) is provided with a feeding pipe (11) communicated with the bottom of the coating cavity, the feeding pipe (11) is provided with a valve, and the coating box (1) comprises: The rotating assembly comprises a rotating rod (22) rotatably arranged between two opposite inner cavity walls of the coating cavity. The limiting assembly comprises four fixed seats (31) fixedly arranged on the outer rod wall of the rotating rod (22), the four fixed seats (31) are symmetrically arranged on the two sides of the rotating rod (22), and a first roller (34) and a second roller (35) are rotatably arranged between the two fixed seats (31) on the same side of the rotating rod (22), and the spacing between the first roller (34) and the corresponding second roller (35) is adjustable.

2. The carbon fiber material coating apparatus according to claim 1, wherein The bottom of the coating box (1) is vertically provided with two symmetrically arranged supporting frames (12), and the top of the coating box (1) is vertically provided with two vertical columns (13), and a discharging roller (14) is rotatably arranged between the two vertical columns (13).

3. The carbon fiber material coating apparatus according to claim 1, wherein The rotating assembly further comprises a servo motor (21) fixedly arranged outside the coating box (1), a shaft coupling is arranged between the output end of the servo motor (21) and the end of the rotating rod (22), and a mounting bracket (23) is vertically fixedly arranged between the outer rod wall of the rotating rod (22) and the corresponding fixed seat (31).

4. The carbon fiber material coating apparatus according to claim 1, wherein The four fixed seats (31) are provided with mounting holes (33) near the side of the corresponding first roller (34), and through holes (32) are formed on the two sides of the four fixed seats (31).

5. The carbon fiber material coating apparatus according to claim 1, wherein The two ends of the two first rollers (34) are rotatably arranged in the corresponding mounting holes (33), and the two ends of the two second rollers (35) are rotatably provided with connecting heads (36), the four connecting heads (36) are respectively arranged through the corresponding through holes (32), and the connecting heads (36) are respectively provided with nuts (37), and the four nuts (37) are respectively arranged on the outer side of the fixed seat (31).

6. The carbon fiber material coating apparatus according to claim 5, wherein The end of the four connecting heads (36) is fixedly provided with a limiting head (38), and the end of the two second rollers (35) is provided with a limiting groove for rotatably arranging the limiting head (38).

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