Porous truss type bullet train seat mold

Abstract

The utility model provides a multi-hole truss type bullet train seat mould, which belongs to the technical field of autoclave molding, and comprises a support plate, a molded panel is arranged on the upper surface of the support plate and is used for finally molding a bullet train seat, a plurality of vent holes are formed in the lower part of the support plate, and the plurality of vent holes are arranged in a staggered manner, so that the lower part of the support plate forms a truss structure. According to the utility model, uniform temperature distribution of the bullet train seat forming die can be realized, and uniform heating of a composite material is ensured, so that the product quality is improved.

Description

Technical Field

[0001] This utility model belongs to the field of autoclave molding technology, and in particular relates to a multi-hole truss type high-speed train seat mold. Background Technology

[0002] Composite materials specifically refer to composite materials that can be used to process primary and secondary load-bearing structures, with stiffness and strength properties equivalent to or exceeding those of aluminum alloys. Autoclave molding of composite materials is a widely used molding technology in many fields such as aerospace, automotive manufacturing, electronics manufacturing, and construction. This process, with its high quality and high efficiency, provides a reliable solution for manufacturing composite parts. Composite materials are widely used in many fields due to their superior properties such as high specific strength, high specific stiffness, low coefficient of thermal expansion, and corrosion resistance. Composite products are typically manufactured in molding dies, and material manufacturing and structural molding are completed simultaneously. Therefore, the die largely determines the shape, dimensions, and fitting accuracy with other components of the composite component.

[0003] Autoclave molding is an advanced forming method. Compared with other mold forming technologies, autoclave molding has advantages such as uniform pressure, uniform air temperature, wide applicability, and stable and reliable process. However, it also requires a large investment and has high costs.

[0004] Because of the large area of ​​high-speed train seats, the autoclave process has high requirements for the temperature field distribution and thermal conductivity of the molding mold. When using the autoclave process to process high-speed train seats, it is impossible to guarantee a uniform temperature distribution in the mold, which in turn cannot guarantee that the composite material is heated evenly, and therefore cannot guarantee product quality. Utility Model Content

[0005] To address the deficiencies or shortcomings in existing technologies, this utility model provides a multi-hole truss-type high-speed train seat mold, which can achieve uniform temperature distribution in the high-speed train seat molding mold, ensure uniform heating of composite materials, and thus improve product quality.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] An embodiment of this utility model provides a multi-hole truss-type high-speed train seat mold, including a support plate. The upper surface of the support plate is provided with a molding panel for finally forming the high-speed train seat. The lower part of the support plate has multiple ventilation holes, which are arranged in an alternating manner to form a truss structure at the lower part of the support plate.

[0008] Furthermore, the ventilation holes include horizontal ventilation holes and vertical ventilation holes, and multiple horizontal and vertical ventilation holes are provided.

[0009] Further, a plurality of transverse ventilation holes are uniformly arranged along the width direction of the support plate, and a plurality of vertical ventilation holes are uniformly arranged along the length direction of the support plate.

[0010] Further, a plurality of transverse ventilation holes and a plurality of vertical ventilation holes are connected to each other.

[0011] Further, heat dissipation holes are also formed on the support plate. There are a plurality of heat dissipation holes, and the plurality of heat dissipation holes are arranged side by side below the mold panel.

[0012] Further, both ends of the heat dissipation hole penetrate through the side wall of the support plate, and a set distance is provided between the heat dissipation hole and the mold panel.

[0013] Further, the longitudinal section of the heat dissipation hole is in a "ji" shape, and the distance between the middle part of the heat dissipation hole and the mold panel is smaller than the distances between the two ends of the heat dissipation hole and the mold panel.

[0014] Further, a support block is fixedly connected to one side of the support plate. The support block is fixed on the upper surface side of the support plate by bolts, and the support block and the support plate are positioned by a positioning pin.

[0015] Further, a first inclined surface is provided on the side of the support block close to the support plate, and a second inclined surface is provided on the side of the support plate close to the support block. The first inclined surface and the second inclined surface are arranged opposite to each other.

[0016] Further, a set distance is provided between the first inclined surface and the second inclined surface, so as to form a support groove between the first inclined surface and the second inclined surface.

[0017] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0018] 1. By forming a plurality of ventilation holes on the support plate and arranging the plurality of ventilation holes in a corner seat manner, the lower part of the support plate is in a truss structure, increasing the heat receiving area of the lower part of the support plate, enabling the fluid to fully exchange heat with the surface of the mold, and further making the temperature distribution of the mold uniform, making it easier for the composite material component to be formed.

[0019] 2. By providing a plurality of heat dissipation holes below the mold panel, when the autoclave cools down, the middle part of the mold panel can be fully cooled, avoiding uneven heating of the material due to the heat dissipation component in the middle part of the mold panel and ultimately affecting the product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a schematic diagram of the overall structure of the mold in an embodiment of the present utility model;

[0021] Figure 2 is a schematic diagram of the side structure of the mold in an embodiment of the present utility model;

[0022] Figure 3This is a cross-sectional view of the mold in an embodiment of this utility model;

[0023] Among them, 1. support plate; 2. profiled panel; 3. heat dissipation hole; 4. ventilation hole; 41. horizontal ventilation hole; 42. vertical ventilation hole; 5. support block; 6. first inclined surface; 7. second inclined surface. Detailed Implementation

[0024] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0025] A typical embodiment of this utility model is as follows: Figure 1 and Figure 2 As shown, a multi-hole truss type EMU seat mold includes a support plate 1, and a molding panel 2 is provided on the upper surface of the support plate 1. The surface of the molding panel 2 is in contact with the prepreg material and is used to finally form the EMU seat.

[0026] In use, first place carbon fiber cloth on mold panel 2. Each layer of carbon fiber cloth needs to be carefully adjusted to ensure flatness, and resin prepreg is applied at the same time to increase adhesion. Repeat the steps of placing carbon fiber cloth and applying resin until all predetermined layers are completed. Place the stacked molded body (carbon fiber cloth and resin prepreg) into a vacuum bag and evacuate it to ensure that the formation of bubbles and pores is reduced during pressure and temperature applications. Place the vacuum bag into an autoclave and carry out the process of heating, pressurizing, heat preservation, cooling, and depressurization. This sequence can ensure that the material is fully cured and guarantee the quality of the product. Remove the molded body from the mold, remove excess carbon fiber and resin, and perform edge trimming, grinding, and other processing.

[0027] In an autoclave, heat exchange is mainly accomplished through convection and conduction. Inside the autoclave, the fluid exchanges heat with the mold surface through convection, and the heat carried by the fluid is transferred to the mold surface, causing the mold surface temperature to change with the fluid temperature. Inside the mold, heat exchange occurs through conduction, and the heat in the high-temperature zone is transferred to the low-temperature zone along the temperature gradient.

[0028] In order to effectively exchange and conduct heat in the mold, make the mold temperature distribution uniform, and make the composite material components easier to form, heat dissipation holes 3 and ventilation holes 4 are provided inside the support plate 1, wherein the heat dissipation holes 3 are located below the mold panel 2, and the ventilation holes 4 are located below the heat dissipation holes 3.

[0029] Specifically, multiple heat dissipation holes 3 are provided, and these holes 3 are evenly arranged along the length of the panel 2, with both ends of each hole 3 penetrating the side wall of the support plate 1, such as... Figure 3As shown, there is a set distance between the heat dissipation holes 3 and the mold panel 2, and the longitudinal section of the heat dissipation holes 3 is in a "ji" shape. The distance between the middle part of the heat dissipation holes 3 and the mold panel 2 is less than the distance between the two ends and the mold panel 2. Thus, when the autoclave cools down, the middle part of the mold panel 2 can be fully cooled, avoiding uneven heating of the material due to heat dissipation components in the middle part of the mold panel 2, and ultimately affecting the product quality.

[0030] The ventilation holes 4 include transverse ventilation holes 41 and vertical ventilation holes 42. There are multiple transverse ventilation holes 41 and multiple vertical ventilation holes 42. The multiple transverse ventilation holes 41 are evenly arranged along the width direction of the support plate 1, and the multiple vertical ventilation holes 42 are evenly arranged along the length direction of the support plate 1. Moreover, the multiple transverse ventilation holes 41 and the multiple vertical ventilation holes 42 are connected to each other, so that the lower part of the support plate 1 is in a truss structure.

[0031] By arranging multiple ventilation holes 4 at the lower part of the support plate 1, the heat absorption area of the lower part of the support plate 1 is increased, enabling the fluid to fully exchange heat with the surface of the mold, and further making the temperature distribution of the mold uniform, and making it easier for the composite material component to be formed.

[0032] One side of the support plate 1 is fixedly connected with a support block 5. The backrest of the train seat is formed through the support block 5. The support block 5 is fixed on the upper surface side of the support plate 1 by bolts, and the support block 5 and the support plate 1 are positioned by a positioning pin to ensure the relative position between the support plate 5 and the support block 1 is fixed. A first inclined surface 6 is provided on the side of the support block 5 close to the support plate 1, and a second inclined surface 7 is provided on the side of the support plate 1 close to the support block 5. The first inclined surface 6 and the second inclined surface 7 are arranged oppositely, and there is a set distance between the first inclined surface 6 and the second inclined surface 7, forming a forming groove between the first inclined surface 6 and the second inclined surface 7. When forming in the autoclave, the composite material is laid on the train seat mold. The seat surface of the train seat is formed through the support plate 1, and the backrest of the train seat is formed through the forming groove between the support block 5 and the support plate 1.

[0033] The above are only the preferred embodiments of the present invention and are not used to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A multi-hole truss type high-speed train seat mold, characterized in that, It includes a support plate, on the upper surface of which a forming panel is provided for finally forming the motor vehicle seat. A plurality of ventilation holes are opened in the lower part of the support plate, and the plurality of ventilation holes are arranged staggeredly so as to form a truss structure in the lower part of the support plate; One side of the support plate is fixedly connected with a support block. The support block is fixed on one side of the upper surface of the support plate by bolts, and positioning between the support block and the support plate is carried out by a positioning pin; A first inclined surface is provided on the side of the support block close to the support plate, and a second inclined surface is provided on the side of the support plate close to the support block. The first inclined surface and the second inclined surface are arranged oppositely; A set distance is spaced between the first inclined surface and the second inclined surface, so as to form a support groove between the first inclined surface and the second inclined surface.

2. The multi-hole truss type EMU seat mold as described in claim 1, characterized in that, The ventilation holes include transverse ventilation holes and vertical ventilation holes, and a plurality of both the transverse ventilation holes and the vertical ventilation holes are provided.

3. The multi-hole truss type EMU seat mold as described in claim 2, characterized in that, The plurality of transverse ventilation holes are uniformly arranged along the width direction of the support plate, and the plurality of vertical ventilation holes are uniformly arranged along the length direction of the support plate.

4. The multi-hole truss type EMU seat mold as described in claim 3, characterized in that, The plurality of transverse ventilation holes and the plurality of vertical ventilation holes are communicated with each other.

5. A multi-hole truss type EMU seat mold as described in claim 1, characterized in that, A plurality of heat dissipation holes are also opened on the support plate. The plurality of heat dissipation holes are arranged side by side under the forming panel.

6. The multi-hole truss type EMU seat mold as described in claim 5, characterized in that, Both ends of the heat dissipation holes penetrate through the side wall of the support plate, and a set distance is spaced between the heat dissipation holes and the forming panel.

7. A multi-hole truss type EMU seat mold as described in claim 6, characterized in that, The longitudinal section of the heat dissipation hole is in a "ji" shape, and the distance between the middle part of the heat dissipation hole and the forming panel is less than the distances between the two ends of the heat dissipation hole and the forming panel.

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