Prepreg production device

Abstract

The utility model relates to a prepreg production device which comprises a prepreg conveying device used for conveying prepreg covered with an adhesive film in the first direction, the adhesive film comprises an isolating film and release paper, and the release paper is bonded with the isolating film through adhesive; the adhesive film roller is configured to be tangent to the surface of the prepreg when the adhesive film roller rotates, and at the position where the adhesive film roller is tangent to the prepreg, the adhesive film roller makes contact with the release paper and peels the release paper from the surface of the isolating film; the blowing device comprises an air outlet, the air outlet is configured to blow air towards the side edge of the prepreg, and air blown out of the air outlet is used for blowing broken glue away from the prepreg in the stripping process of the release paper and the isolating membrane. According to the prepreg production device disclosed by the invention, the quality defect of a finished product caused by glue residues of the produced prepreg can be effectively avoided.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the technical field of fiber material, in particular to a prepreg production device. BACKGROUND

[0002] Prepreg refers to a kind of semi-solid composite material semi-finished product formed by pre-impregnating fiber reinforced material in resin matrix. This material can be completely cured by heating and pressing in subsequent processing, forming a composite material product with high strength and high stiffness. In the prepreg manufacturing process, the two sides of the adhesive film need to be heated and pressed together with the carbon gauze in the middle, and then the release paper on the upper surface of the adhesive film is peeled off and wound, so as to realize the isolation of the release film in the adhesive film on the side of the prepreg, and to protect the prepreg. CONTENT OF THE UTILITY MODEL

[0003] In order to overcome the problems in the related art, the present disclosure provides a prepreg production device. The quality defects of the finished product caused by the residual glue of the produced prepreg can be effectively avoided.

[0004] According to an embodiment of the present disclosure, a prepreg production device is provided, comprising:

[0005] A prepreg conveying device is configured to convey the prepreg covered with adhesive film in a first direction, wherein the adhesive film comprises a release film and a release paper, and the release paper is adhered to the release film with glue;

[0006] An adhesive film roller is configured to be tangent to the surface of the prepreg when the adhesive film roller rotates, and the adhesive film roller is in contact with the release paper and peels the release paper from the surface of the release film at the position where the adhesive film roller is tangent to the prepreg;

[0007] A gas blowing device comprises a gas outlet configured to blow gas towards the side of the prepreg, and the gas blown by the gas outlet is used to blow the broken glue away from the prepreg during the peeling of the release paper from the release film.

[0008] In some exemplary embodiments of the present disclosure, the prepreg production device further comprises a fixing frame arranged along a second direction perpendicular to the first direction, and the gas outlet is arranged at the end of the fixing frame.

[0009] In some exemplary embodiments of the present disclosure, along the second direction, a gas blowing pipe is fixed at the end of the fixing frame, one end of the gas blowing pipe is connected to the fixing frame, and the other end is the gas outlet.

[0010] In some exemplary embodiments of the present disclosure, the gas blowing pipe extends towards the direction close to the adhesive film roller and is configured to be bent towards the direction of the side of the prepreg.

[0011] In some exemplary embodiments of the present disclosure, the fixed frame is spaced apart from the film roller by a first preset distance in the first direction.

[0012] In some exemplary embodiments of the present disclosure, the air blowing pipe is a flexible pipe, which can be adjusted in length to adjust the distance between the air outlet and the film roller.

[0013] In some exemplary embodiments of the present disclosure, the air outlet is configured to blow air with a pressure of 6 bar-10 bar.

[0014] In some exemplary embodiments of the present disclosure, the air blowing device comprises:

[0015] at least two air outlets, each of which is configured to blow air towards a side edge of the prepreg in the second direction.

[0016] In some exemplary embodiments of the present disclosure, the prepreg production device further comprises a collecting device, which is arranged outside the prepreg, and a collecting port of the collecting device is located in the air outlet direction of the air outlet.

[0017] In some exemplary embodiments of the present disclosure, the collecting port of the collecting device is opposite to the air outlet.

[0018] The prepreg production device of the present disclosure has the following beneficial effects: the present disclosure adds an air blowing device, which comprises an air outlet configured to blow air towards a side edge of the prepreg, the air outlet is opposite to the side edge of the prepreg, and the blown air passes through the side edge of the prepreg and is blown towards the outside of the prepreg, thereby reducing the glue left on the release film after the prepreg is broken, and further reducing the glue content in the finished product after the prepreg is wound with the release film. The quality defects of the finished product caused by the residual glue are effectively avoided, thereby improving the overall quality and performance stability of the finished product, and better meeting the needs of subsequent processing and final application.

[0019] It should be understood that the above general description and the following detailed description are only exemplary and explanatory, and cannot limit the present disclosure. BRIEF DESCRIPTION OF DRAWINGS

[0020] The accompanying drawings, which are incorporated into and form part of the specification, illustrate embodiments consistent with the present disclosure and, together with the specification, serve to explain the principles of the present disclosure.

[0021] Figure 1 is a side view of a prepreg production device according to an exemplary embodiment.

[0022] Figure 2 is a top view of a prepreg production device according to an exemplary embodiment.

[0023] Figure 3 is a schematic view of a prepreg according to an example embodiment. DETAILED DESCRIPTION

[0024] The example embodiments will be described in detail with reference to the accompanying drawings. Wherever possible, the same reference numbers will be used throughout the drawings to refer to the same or like elements. The following detailed description is not intended to represent all embodiments in accordance with the present disclosure. Rather, they are merely examples in accordance with some aspects of the present disclosure as detailed in the appended claims.

[0025] If the terms indicating direction or position relationship (such as up, down, left, right, front, back, inner, outer, top, bottom, center, vertical, horizontal, longitudinal, transverse, length, width, counterclockwise, clockwise, axial, radial, circumferential, etc.) are involved in the embodiments of the present disclosure, such terms are only used to explain the relative position relationship, movement condition, etc. between components in a certain posture (as shown in the drawings); if the certain posture changes, the direction indication or position relationship also changes accordingly. In addition, the terms "first", "second", etc. involved in the embodiments of the present disclosure are only used for convenience of description, and cannot be understood as indicating or implying relative importance.

[0026] In the actual production process, when the workshop temperature is too high or the coating width of the film exceeds the width of the prepreg, the peeling of the release paper often causes the glue on both sides to be stretched to the maximum length, and then to break and fall off due to gravity at the edge of the prepreg, with a length of up to 10 cm. Even if the edge is cut, there will still be broken glue in the finished product after winding, resulting in a high proportion of glue-rich defects, which seriously affects the pass rate of the prepreg, increases the production cost, and affects the customer satisfaction. At present, the main method is manual visual online cleaning, which has many missed detections and increases the workload of manual operation.

[0027] Based on the above problems, with reference to Figure 1 and Figure 2 The present disclosure provides a prepreg production device, which comprises a prepreg conveying device 100, a film roller 200 and a blowing device 300. In combination with Figure 1 and Figure 3, the prepreg conveying device 100 is used to convey the prepreg 500 covered with the film 400 along the first direction x, the film 400 includes the release film 410 and the release paper 420. The release film 410 is bonded to the surface of the prepreg 500, and the release paper 420 is bonded to the release film 410 with glue. After the film 400 is first laminated with the prepreg 500, the release paper 420 of the film 400 is then peeled off from the release film 410, and the release film 410 remains on the surface of the prepreg 500 to protect the prepreg.

[0028] The film roller 200 is configured to be tangent to the surface of the prepreg 500 when the film roller 200 rotates, and the film roller 200 contacts the release paper 420 at the position where the film roller 200 is tangent to the prepreg 500, and the release paper 420 is peeled off from the surface of the release film 410 in the process of rotation. At the position where the film roller 200 is tangent to the prepreg 500, the rotation direction of the film roller 200 and the tangent direction of the prepreg 500 are consistent with the first direction, i.e. Figure 1 the x direction in the figure, and the release paper 420 is wound on the film roller 200, so that the film roller 200 rotates and the release paper 420 can be peeled off.

[0029] The air blowing device 300 includes the air outlet 301, which is configured to blow air towards the side edge of the prepreg 500, and the air blown by the air outlet 301 is used to blow the broken glue away from the prepreg 500 in the process of peeling off the release paper 420 from the release film 410. The air outlet 301 is directly opposite the side edge of the prepreg 500, and the air blown by the air outlet 301 passes through the side edge of the prepreg 500 and blows towards the outside of the prepreg 500. Through the air blowing device 300, the broken glue between the release paper 420 and the release film 410 is blown to the outside of the prepreg 500 from the side edge in the process of peeling off the release paper 420, thereby reducing the amount of glue remaining on the release film 410 after the broken glue, and further reducing the glue content in the finished product after the prepreg 500 is wound with the release film 410. The quality defects of the finished product caused by the residual glue are effectively avoided, thereby improving the overall quality and performance stability of the finished product, making it better meet the needs of subsequent processing and final application, and reducing the labor burden.

[0030] In an embodiment, in combination with Figure 1 and Figure 2 , the prepreg production device further includes a fixed frame 600, the fixed frame 600 is arranged along the second direction, i.e. Figure 2 the y direction in the figure, and the second direction y is perpendicular to the first direction x, and the air outlet 301 is arranged at the end of the fixed frame 600. The end of the fixed frame 600 is the side edge part of the prepreg 500, and the fixed frame 600 is used to support the air outlet 301, so that the air outlet 301 is arranged directly opposite the side edge part of the prepreg 500. The fixed frame 600 can provide good structural stability for the device, and ensure the smooth operation of the air blowing device 300 in the production process of the prepreg 500.

[0031] In an embodiment, the end of the fixing frame 600 is fixed with a blowing pipe 310, one end of which is connected with the fixing frame 600 and the other end is the air outlet 301. The blowing device 300 is fixed on the fixing frame 600 through the blowing pipe 310. The blowing pipe 310 can be designed and manufactured independently of the prepreg production device, and its shape, length, diameter and other parameters can be flexibly adjusted according to specific needs. It can be conveniently extended or bent so that the air outlet 301 is directly opposite the side edge of the prepreg. The manufacturing process of the blowing pipe 310 is relatively simple, and usually only basic processes such as cutting, bending and welding are needed to complete, and the manufacturing cost is relatively low, and it is convenient to replace.

[0032] In a specific embodiment, the other end of the blowing pipe 310 is adjustable relative to the direction of the fixing frame 600. The blowing pipe 310 can be a deformable pipe, a universal joint pipe, or a pipe with a spherical joint, which can be adjusted relative to the fixing frame 600, and the direction of the air outlet 301 can be adjusted, so that the operator can adjust the direction of the air outlet 301 according to the needs, and make it directly opposite the position where the broken glue is more accumulated on the side edge of the prepreg. This embodiment can adapt to more situations and ensure that the ideal blowing and degumming effect can be achieved under different working conditions, thereby improving the production efficiency and product quality. In some embodiments, an image acquisition and analysis device can also be provided to acquire images near the area where the air outlet 301 is located, analyze the part where the residual glue is more through the acquired images, and then adjust the direction of the air outlet 301 of the blowing pipe 310, thereby improving the degumming efficiency and degumming effect.

[0033] In an embodiment, the blowing pipe 310 extends towards the direction of the glue film roller 200 and is configured to be bent towards the direction of the side edge of the prepreg 500. Referring to Figure 1 , the process of peeling off the release paper 420 from the release film 410 will have a large amount of glue broken at the beginning of the peeling, and most of the broken glue will be accumulated near the glue film roller 200. Therefore, in this embodiment, the blowing pipe 310 extends towards the direction of the glue film roller 200, so that the blowing pipe 310 is closer to the position where a large amount of broken glue is accumulated, and the blowing pipe 310 is bent towards the side edge of the prepreg 500, so that a large amount of broken glue near the glue film roller 200 can be blown away from the prepreg 500.

[0034] In an embodiment, the fixed frame 600 is spaced apart from the film roller 200 by a first preset distance. On the one hand, it can reserve sufficient installation space for the arrangement of the blowing pipe 310, ensuring that the blowing pipe 310 can be smoothly installed in the corresponding position. On the other hand, the existence of this spacing also greatly facilitates the adjustment operation of the blowing pipe 310. By flexibly adjusting the blowing pipe 310 within the first preset distance between the fixed frame 600 and the film roller 200, the worker can accurately position the blowing pipe 310 to the position where the broken glue is more, thereby effectively blowing off the glue.

[0035] In an embodiment, the blowing pipe 310 is a flexible pipe, which can adjust the distance between the air outlet 301 and the film roller 200. The blowing pipe 310 of the present embodiment can adjust the distance between the air outlet 301 and the film roller 200, so that the worker can accurately position the blowing pipe 310 to the position where the broken glue is more, thereby effectively blowing the glue, improving production efficiency and product quality, and the flexibility of the flexible pipe can maintain the stability of shape and performance under the action of external force to a certain extent, without deformation or damage due to slight collision or extrusion, thereby ensuring the normal work of the blowing pipe 310 and maintaining stable air flow output.

[0036] In an embodiment, the air outlet 301 is used to blow gas with a gas pressure of 6bar-10bar, which can be 6bar, 7bar, 8bar, 9bar, etc. The gas in this pressure range can give the broken glue enough force to separate from the surface of the prepreg 500, and also can avoid too large gas pressure to damage the surface of the prepreg 500.

[0037] In an embodiment, the blowing device 300 includes at least two air outlets 301, which are arranged along the second direction y respectively and are configured to face the two side edges of the prepreg 500. It can be two blowing pipes arranged at the two ends of the fixed frame 600 along the second direction y, and the two sides of the prepreg 500 are blown away from the prepreg 500 due to the broken glue.

[0038] In an embodiment, in combination with the above-mentioned embodiment, the blowing device 300 includes at least two air outlets 301, which are arranged along the second direction y respectively and are configured to face the two side edges of the prepreg 500. Figure 2The prepreg production device further comprises a collecting device 700, which is arranged outside the prepreg 500 and has a collecting opening located in the air outlet direction of the air outlet 301. The glue blown out by the air outlet 301 can enter the collecting device 700 through the collecting opening, preventing the glue from splashing everywhere, reducing the pollution of the production environment, and reducing the cleaning cost and workload. The collecting device 700 can effectively prevent the glue from splashing everywhere and causing problems, making the entire production area cleaner and more orderly, reducing resource waste, improving material utilization, and reducing production costs

[0039] In an embodiment, the collecting opening of the collecting device 700 is directly opposite the air outlet 301, which can ensure that the glue blown out by the air outlet 301 is accurately and efficiently collected. Since the collecting opening is directly opposite the air outlet 301, the glue will fall into the collecting device 700 after being blown out, and almost no glue will splash or fall in the production environment. This not only greatly improves the cleanliness of the production process and reduces the workload of subsequent cleaning, but also effectively prevents the glue from polluting other equipment components or the production area, ensuring the cleanliness and safety of the production environment. At the same time, accurate collection also means that the utilization rate of the glue has been significantly improved, reducing material waste and production costs, which is of great significance to improving overall production efficiency and product quality.

[0040] Other embodiments of the present disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. It is intended that the present disclosure cover any and all variations of the present disclosure including those variations that are now known or become known in the future that follow, in general, the principles of the present disclosure and include modifications typical of the art to which the present disclosure belongs. The specification and examples are to be regarded as exemplary only, with the true scope and spirit of the present disclosure being indicated by the following claims.

[0041] It should be understood that the present disclosure is not limited to the precise structures described above and illustrated in the drawings and that various modifications and changes can be made without departing from the scope thereof. The scope of the present disclosure is limited only by the claims that follow.

Claims

1. An apparatus for producing a prepreg, characterized by comprising: The pre-preg conveying device is used for conveying the pre-preg covered with the film in a first direction, wherein the film comprises a release film and a release paper, and the release paper is adhered to the release film by adhesive; The film roller is configured to be tangent to the surface of the pre-preg when the film roller rotates by itself, and the film roller is in contact with the release paper and peels the release paper from the surface of the release film at the position where the film roller is tangent to the pre-preg; The air blowing device comprises an air outlet configured to blow air towards the side edge of the pre-preg, and the air blown by the air outlet is used to blow the broken adhesive away from the pre-preg during the peeling of the release paper from the release film. The pre-preg production device further comprises a fixing frame arranged in a second direction perpendicular to the first direction, and the air outlet is arranged at the end of the fixing frame.

2. The prepreg production apparatus according to claim 1, wherein In the second direction, the end of the fixing frame is fixed with an air blowing pipe, one end of the air blowing pipe is connected to the fixing frame, and the other end is the air outlet.

3. The prepreg production apparatus according to claim 2, wherein The air blowing pipe extends towards the direction close to the film roller and is configured to be bent towards the direction of the side edge of the pre-preg.

4. The prepreg production apparatus according to claim 3, wherein In the first direction, the fixing frame is spaced apart from the film roller by a first preset distance.

5. The prepreg production apparatus according to claim 3, wherein The air blowing pipe is a flexible pipe capable of adjusting the distance between the air outlet and the film roller.

6. The prepreg production apparatus according to claim 5, wherein The air outlet is used to blow air with a pressure of 6 bar-10 bar.

7. The prepreg production apparatus according to claim 2, wherein The air blowing device comprises:

8. A prepreg production apparatus according to any one of claims 2 to 7, wherein At least two air outlets respectively configured to blow air towards two side edges of the pre-preg in the second direction. The pre-preg production device further comprises a collecting device configured outside the pre-preg, and a collecting port of the collecting device is located in the air outlet direction of the air outlet.

9. A prepreg production apparatus according to any one of claims 1 to 7, wherein The collecting port of the collecting device is opposite to the air outlet.

10. The prepreg production apparatus according to claim 9, wherein ​

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