Composite fiber type reinforcing film

Abstract

The utility model discloses a composite fiber type reinforcing film which comprises release paper, and is characterized in that a polyurethane bonding layer is arranged at the top of the release paper, a composite fiber layer is arranged at the top of the polyurethane bonding layer, a first reinforcing rod is arranged in the composite fiber layer, a second reinforcing rod is fixedly arranged on the surface of the first reinforcing rod, and the second reinforcing rod is fixedly arranged on the surface of the second reinforcing rod. A reinforcing frame is fixedly arranged on the surface of the reinforcing rod II, and the reinforcing frame is fixedly connected with the reinforcing rod I. According to the composite fiber type reinforcing film, the reinforcing rod I, the reinforcing rod II and the reinforcing frame are arranged in the composite fiber layer in a matched manner, so that the composite fiber layer is compounded and reinforced, and the composite fiber layer is clamped by the polyurethane bonding layer and the fiber cloth; the rigidity, the bending strength and the impact resistance of the vehicle steel plate are improved, the situation that an existing reinforcing rubber sheet is not high in strength in the using process, cracks or deforms easily in the using process, and danger is caused to a user is avoided, and the safety is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of reinforcing films, in particular to a composite fiber type reinforcing film. Background Art

[0002] As people's environmental awareness gradually increases, in order to save energy, lightweighting of automobiles has gradually become a trend. In automobile design and production, in order to reduce the weight of the car, the thickness of the steel plate used in car manufacturing is reduced. However, thinning of the steel plate will reduce the rigidity of the car body, especially the inner door panels, door handles, the inside of the hood, the roof, wheel arches, side panels and other parts are prone to noise and resonance during driving. When an accidental collision occurs, the impact energy absorption becomes smaller, which can easily injure the occupants; at the same time, it will also reduce the anti-dent effect of the outer covering. Therefore, reinforcing films are used when processing cars in the market.

[0003] However, the existing reinforcing films are not strong enough during use, and are prone to cracking or deformation, which may cause danger to users, thereby greatly reducing their practicality. Therefore, a composite fiber reinforcing film is proposed. Utility Model Content

[0004] In view of the deficiencies of the prior art, the utility model provides a composite fiber type reinforcing film for solving the problems raised in the above background technology.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A composite fiber type reinforcing film comprises a release paper, a polyurethane adhesive layer is arranged on the top of the release paper, a composite fiber layer is arranged on the top of the polyurethane adhesive layer, a reinforcing rod 1 is arranged inside the composite fiber layer, a reinforcing rod 2 is fixedly arranged on the surface of the reinforcing rod 1, a reinforcing frame is fixedly arranged on the surface of the reinforcing rod 2, and the reinforcing frame is fixedly connected to the reinforcing rod 1, and a fiber cloth is arranged on the top of the composite fiber layer.

[0007] Preferably, the thickness of the polyurethane adhesive layer is two millimeters.

[0008] Preferably, the number of the reinforcing rods 1 and 2 is multiple, and the multiple reinforcing rods 1 and 2 are all circular structures.

[0009] Preferably, there are several reinforcement frames, and the reinforcement frames are symmetrically distributed.

[0010] Preferably, an epoxy / phenolic structural adhesive is provided between the facing surfaces of the composite fiber layers, and the composite fiber layer and the fiber cloth are bonded together by the epoxy / phenolic structural adhesive.

[0011] Preferably, the fiber cloth is woven from glass fibers.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows: the composite fiber type reinforcing film is used to compositely reinforce the composite fiber layer by co-arranging reinforcing rod 1, reinforcing rod 2 and a reinforcing frame inside the composite fiber layer, and the composite fiber layer is sandwiched by a polyurethane adhesive layer and a fiber cloth, thereby improving the rigidity, bending strength and impact resistance of the vehicle steel plate, avoiding the situation that the existing reinforcing film has low strength during use, is prone to cracking or deformation during use, and poses a danger to the user, thereby improving safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is the structural survey drawing of the utility model;

[0014] Figure 2 It is a top sectional view of the local structure of the utility model;

[0015] Figure 3 for Figure 2 Enlarged view of point A in the middle.

[0016] In the figure: 1. anti-sticking paper; 2. polyurethane bonding layer; 3. composite fiber layer; 4. reinforcing rod 1; 5. reinforcing rod 2; 6. reinforcing frame; 7. epoxy / phenolic structural adhesive; 8. fiber cloth. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0018] Reference Figure 1-3A composite fiber type reinforcing film comprises a release paper 1, a polyurethane adhesive layer 2 is arranged on the top of the release paper 1, and the thickness of the polyurethane adhesive layer 2 is 2 mm. The composite fiber type reinforcing film is bonded to the body steel plate through the polyurethane adhesive layer 2. Because it has excellent rubber properties and can adapt to the bonding of substrates with different thermal expansion coefficients, it forms a soft to hard transition layer between the body and the composite fiber type reinforcing film. It not only has strong bonding strength, but also has excellent buffering and shock absorption functions, thereby improving the comfort of the car. The polyurethane adhesive layer 2 A composite fiber layer 3 is arranged on the top, a reinforcing rod 1 4 is arranged inside the composite fiber layer 3, a reinforcing rod 2 5 is fixedly arranged on the surface of the reinforcing rod 1 4, the number of reinforcing rods 1 4 and reinforcing rods 2 5 are both several, and the several reinforcing rods 1 4 and reinforcing rods 2 5 are all circular structures, and the compression resistance and crack resistance of the reinforcing film are improved by matching the reinforcing rods 1 4 and reinforcing rods 2 5, a reinforcing frame 6 is fixedly arranged on the surface of the reinforcing rod 2 5, and the reinforcing frame 6 is fixedly connected to the reinforcing rod 1 4, the number of the reinforcing frames 6 is several, and the several reinforcing frames 6 are symmetrical The reinforcing frame 6 is arranged to make the reinforcing rod 1 4 and the reinforcing rod 2 5 more stable and less prone to deformation, thereby further improving safety. A fiber cloth 8 is arranged on the top of the composite fiber layer 3, and the fiber cloth 8 is woven from glass fiber. An epoxy / phenolic structural adhesive 7 is arranged between the facing surfaces of the composite fiber layer 3, and the composite fiber layer 3 and the fiber cloth 8 are bonded by the epoxy / phenolic structural adhesive 7. By arranging the epoxy / phenolic structural adhesive 7 and the fiber cloth 8 in cooperation with the polyurethane adhesive layer 2, the two sides of the composite fiber layer 3 are sandwiched. , which improves the toughness and compression resistance of the reinforcing film. The composite fiber type reinforcing film is reinforced by arranging a reinforcing rod 1 4, a reinforcing rod 2 5 and a reinforcing frame 6 inside the composite fiber layer 3. The composite fiber layer 3 is sandwiched by a polyurethane adhesive layer 2 and a fiber cloth 8, which improves the rigidity, bending strength and impact resistance of the vehicle steel plate, avoids the existing reinforcing film having low strength during use, which is easy to cause cracking or deformation during use, causing danger to the user, and improves safety.

[0019] During use: peel off the anti-sticking paper 1 and then the composite fiber type reinforcing film can be mounted through the polyurethane adhesive layer 2. During use after mounting, it can adapt to the bonding of substrates with different thermal expansion coefficients, and it is difficult for the reinforcing film to shift. At the same time, the composite fiber layer 3 and the internal reinforcing rod 1 4, reinforcing rod 2 5 and reinforcing frame 6 cooperate with each other to improve the rigidity of the steel plate at the mounting position to avoid cracking and deformation.

[0020] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0021] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A composite fiber type reinforcing film, comprising a release paper (1), characterized in that: A polyurethane adhesive layer (2) is arranged on the top of the anti-sticking paper (1), a composite fiber layer (3) is arranged on the top of the polyurethane adhesive layer (2), a reinforcing rod one (4) is arranged inside the composite fiber layer (3), a reinforcing rod two (5) is fixedly arranged on the surface of the reinforcing rod one (4), a reinforcing frame (6) is fixedly arranged on the surface of the reinforcing rod two (5), and the reinforcing frame (6) is fixedly connected to the reinforcing rod one (4), and a fiber cloth (8) is arranged on the top of the composite fiber layer (3).

2. A composite fiber type reinforcing film according to claim 1, characterized in that: The thickness of the polyurethane adhesive layer (2) is 2 millimeters.

3. A composite fiber type reinforcing film according to claim 1, characterized in that: The number of the reinforcing rods one (4) and two (5) is multiple, and the multiple reinforcing rods one (4) and two (5) are all circular structures.

4. A composite fiber type reinforcing film according to claim 1, characterized in that: The number of the reinforcing frames (6) is several, and the several reinforcing frames (6) are symmetrically distributed.

5. The composite fiber type reinforcing film according to claim 1, characterized in that: An epoxy / phenolic structural adhesive (7) is provided between the facing surfaces of the composite fiber layer (3), and the composite fiber layer (3) and the fiber cloth (8) are bonded together by the epoxy / phenolic structural adhesive (7).

6. A composite fiber type reinforcing film according to claim 1, characterized in that: The fiber cloth (8) is woven from glass fibers.

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