Cooling device for prepreg production

Abstract

The utility model discloses a cooling device for prepreg production, and belongs to the technical field of industrial production. The device comprises a rack and a heat exchanger, a cold air cover and a cold air pipeline are further included. A cooling plate is fixedly arranged on the rack; the cold air cover is positioned above the cooling plate, and a space formed by buckling the cold air cover and the cooling plate is a cooling cavity; the cooling cavity, the heat exchanger and the fan are connected end to end through a cold air pipeline, and low-temperature cooling water is introduced into a cooling pipe of the heat exchanger; an adjusting valve for adjusting the air volume is arranged on the cold air pipeline; on the basis that the original cooling plate cools the lower surface of the prepreg, the cold air cover is additionally arranged above the cooling plate to cool the upper surface of the prepreg, so that the cooling speed of the prepreg is increased, and the production process is accelerated.

Description

Technical Field

[0001] The utility model relates to the technical field of industrial production, in particular to a cooling device for prepreg production. Background Art

[0002] Prepreg is an intermediate material for manufacturing composite materials and their products. It constitutes the basic unit of composite materials. The uniformity and stability of its quality are important links to ensure the quality and reliability of composite materials and their products. Resin-based composite materials (RMC) have high specific strength and specific stiffness, good design performance, and can effectively reduce the structural mass of spacecraft. They are the development focus of aerospace materials today and are gradually replacing traditional metal materials. In recent years, the use of carbon fiber composite materials on spacecraft such as satellites and spacecraft has increased year by year. In particular, carbon fiber prepreg composite materials have been widely used in the main structures of satellites such as the central bearing tube, base plate, and connecting frame, meeting many functional requirements of spacecraft.

[0003] The production of carbon fiber prepreg requires the preparation of carbon fiber tows of the required width and content, which are evenly laid on the fiber frame. At the same time, the heated resin is evenly applied to the upper and lower release papers, and the laid carbon fiber tows and the release papers coated with resin are then placed in a pressing and impregnation device. With the help of the pressure between the upper and lower rollers, the carbon fiber tows between the upper and lower layers of release paper are evenly impregnated with resin, and then the resin-impregnated carbon fiber material is cooled and shaped, and then trimmed and wound to become a finished carbon fiber prepreg cloth. In the production process of prepregs, the prepregs need to be cooled, coated, trimmed and wound after pressing and impregnation. Slow cooling speed affects the prepreg coating effect. Excessive temperature of the prepreg product will affect the continuous production speed, so the cooling temperature needs to be controlled. Utility Model Content

[0004] In view of the problems existing in the above background technology, the utility model provides a cooling device for prepreg production. Based on the original cooling plate cooling the lower surface of the prepreg, the structure adds a cold air cover on the upper surface to cool the upper surface of the prepreg, thereby accelerating the cooling speed of the prepreg and speeding up the production process.

[0005] The utility model adopts the following technical solutions to achieve the above technical effects:

[0006] A cooling device for prepreg production, comprising a frame and a heat exchanger; a cold air hood and a cold air pipeline;

[0007] A cooling plate is fixedly arranged on the frame; a cold air cover is located above the cooling plate, and the space formed by the two being buckled together is a cooling chamber; the cooling chamber, the heat exchanger and the fan are connected end to end through a cold air pipeline, wherein low-temperature cooling water flows through the cooling pipe of the heat exchanger;

[0008] The cold air pipeline is provided with a regulating valve for adjusting the air volume;

[0009] A guide shaft and an opening and closing cylinder are also installed on the frame, wherein the guide shaft is parallel to the movement direction of the core rod of the opening and closing cylinder; the core rod of the opening and closing cylinder is connected to the cooling hood; the fixed end of the opening and closing cylinder is installed on the frame; the cooling hood is constrained on the guide shaft; and the cooling hood has the freedom to move vertically along the cooling plate.

[0010] Furthermore, one side of the cold air hood is hinged to the frame via a pin; the other side is hinged to the corresponding core rod and guide shaft via a hinge seat.

[0011] Furthermore, two hinged seats are provided on the other side of the cold air hood, and a hinged block is constrained on the guide shaft; the hinged block is hinged to the corresponding hinged seat, and the bottom of the guide shaft is hinged to the frame.

[0012] Furthermore, another hinged seat is hinged to the end of the core rod, and the fixed end of the opening and closing cylinder is hinged to the frame.

[0013] Compared with the prior art, the beneficial effects achieved by the utility model are:

[0014] The utility model provides a manual regulating valve to facilitate the adjustment of the air volume and further control the cooling speed.

[0015] The heat exchanger of the utility model passes low-temperature cooling water to reduce the temperature of the wind in the cold air pipeline;

[0016] In the utility model, the cooling air with a relatively high temperature after cooling is cooled by the heat exchanger under the action of the fan, and the next cycle is carried out, thereby continuously cooling the prepreg. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of an embodiment of the utility model;

[0018] Figure 2 It is a partial structural schematic diagram of an embodiment of the utility model; DETAILED DESCRIPTION

[0019] Below, the utility model is further described in conjunction with the accompanying drawings.

[0020] Reference Figure 1 and Figure 2 A cooling device for prepreg production includes a cold air hood, a fan, a heat exchanger, a cold air pipeline, and a manual regulating valve for adjusting the air volume.

[0021] The cooling device for prepreg production comprises an opening and closing cylinder 1, an opening and closing cylinder guide shaft 2, a cold air hood 3, a cold air pipeline 4, a manual regulating valve 5, a heat exchanger 6, and a fan 7. The cold air hood 3 is fixed above the frame cooling plate through a pin shaft, the opening and closing cylinder 1 and the opening and closing cylinder guide shaft 2 are fixed on the frame and the cold air hood 3, the cold air hood 3 is opened or closed by rotating along the pin shaft under the action of the opening and closing cylinder 1, the fan 7 and the heat exchanger 6 are fixed on the frame, the fan 7, the heat exchanger 6, and the cold air hood are connected through the cold air pipeline 4, the manual regulating valve 5 is installed on the cold air pipeline 4 for adjusting the air volume, and low-temperature cooling water is passed through the heat exchanger 6 to reduce the temperature of the air in the cold air pipeline 4;

[0022] Before formal production, the cold air hood 3 is opened along the opening and closing cylinder guide shaft 2 under the action of the opening and closing cylinder 1, the cold air fan 7 does not work, and the operator performs preparatory work such as threading. During normal operation, the cold air hood 3 is closed along the opening and closing cylinder guide shaft 2 under the action of the opening and closing cylinder 1, the cold air hood 3 and the bottom fixed cooling plate form a closed space, the cold air fan 7 starts to work, and the cooling air cooled by the heat exchanger 6 is blown to the upper surface of the prepreg to cool the prepreg. After cooling, the cooling air with a higher temperature is cooled by the heat exchanger 6 under the action of the fan, and the next cycle is carried out, thereby continuously cooling the prepreg.

[0023] It should be understood that the above description of the specific implementation methods of this patent is only an exemplary description listed to facilitate ordinary technicians in the field to understand the patent scheme, and does not imply that the scope of protection of this patent is limited to these individual examples. Ordinary technicians in this field can fully understand the technical scheme of this patent and, without any creative work, obtain more specific implementation methods by combining technical features, replacing some technical features, adding more technical features, etc. to the examples listed in this patent. All these specific implementation methods are within the scope of the claims of this patent. Therefore, these new specific implementation methods should also be within the scope of protection of this patent.

[0024] In addition, for the purpose of simplifying the description, this patent may not list some common specific implementation schemes, which are naturally conceivable to ordinary technicians in this field after understanding the technical solution of this patent. Obviously, these solutions should also be included in the scope of protection of this patent.

Claims

1. A cooling device for prepreg production, comprising a frame and a heat exchanger; characterized in that: It also includes a cold air hood and a cold air duct; A cooling plate is fixedly arranged on the frame; a cold air cover is located above the cooling plate, and the space formed by the two being buckled together is a cooling chamber; the cooling chamber, the heat exchanger and the fan are connected end to end through a cold air pipeline, wherein low-temperature cooling water flows through the cooling pipe of the heat exchanger; The cold air pipeline is provided with a regulating valve for adjusting the air volume; A guide shaft and an opening and closing cylinder are also installed on the frame, wherein the guide shaft is parallel to the movement direction of the core rod of the opening and closing cylinder; the core rod of the opening and closing cylinder is connected to the cooling hood; the fixed end of the opening and closing cylinder is installed on the frame; the cooling hood is constrained on the guide shaft; and the cooling hood has the freedom to move vertically along the cooling plate.

2. A cooling device for prepreg production according to claim 1, characterized in that: One side of the cold air cover is hinged to the frame through a pin shaft; the other side is hinged to the corresponding core rod and guide shaft through a hinge seat.

3. A cooling device for prepreg production according to claim 2, characterized in that: Two hinged seats are arranged on the other side of the cold air cover, and a hinged block is constrained on the guide shaft; the hinged block is hinged to the corresponding hinged seat, and the bottom of the guide shaft is hinged to the frame.

4. A cooling device for prepreg production according to claim 3, characterized in that: The other hinged seat is hinged to the end of the core rod, and the fixed end of the opening and closing cylinder is hinged to the frame.

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