Fiber reinforced composite sheet forming device

Abstract

The utility model relates to the technical field of composite sheet forming, in particular to a fiber reinforced composite sheet forming device. The utility model provides a fiber reinforced composite sheet forming device which can ensure that prepreg automatically falls off from a first movable upper die and a second movable upper die after being cooled, and improves the demolding efficiency of the prepreg. A fiber reinforced composite sheet forming device comprises a workbench, a heating plate, a lower die and the like, the upper side of the front portion of the workbench is connected with the heating plate, and the upper side of the heating plate is connected with the lower die. When the sliding frame moves upwards to be reset, the extrusion plates are pushed to be far away from each other through the rollers, and the first movable upper die and the second movable upper die are far away from each other and are separated, so that cured prepreg automatically falls off from the first movable upper die and the second movable upper die; and the effects that it can be ensured that the prepreg automatically falls off from the first movable upper mold and the second movable upper mold after being cooled, and the prepreg demolding efficiency is improved are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of composite sheet forming, in particular to a fiber-reinforced composite sheet forming device. Background Art

[0002] Fiber-reinforced composite molded products generally use materials such as epoxy resin, so they can be manufactured by impregnating fiber bundles with epoxy resin, drying to obtain prepreg, and then heating and pressurizing it to cure it.

[0003] For example, a method for manufacturing fiber-reinforced composite molded products using a stamping mold in the field of stamping molding with a publication (announcement) number of CN106393734A, wherein a prepreg is arranged between an upper mold and a lower mold, and pressurized and heated together, and then the upper mold and the lower mold are separated from each other, and cooling gas is applied to the cured prepreg attached to the stamping surfaces of the upper mold and the lower mold and between the stamping surfaces, thereby demolding the cured prepreg from the mold. However, since the cured prepreg may still adhere to the upper mold after cooling, it cannot be ensured that the prepreg will fall off automatically, which affects the demolding efficiency of the prepreg.

[0004] Therefore, a fiber-reinforced composite sheet forming device has been developed that can ensure that the prepreg automatically falls off from the first movable upper mold and the second movable upper mold after cooling, thereby improving the prepreg demoulding efficiency. Utility Model Content

[0005] In order to overcome the disadvantage of existing fiber-reinforced composite sheet forming, the cured prepreg may still adhere to the upper mold after cooling, and it is impossible to ensure that the prepreg automatically falls off, which affects the demolding efficiency of the prepreg. The utility model provides a fiber-reinforced composite sheet forming device that can ensure that the prepreg automatically falls off from the first movable upper mold and the second movable upper mold after cooling, thereby improving the demolding efficiency of the prepreg.

[0006] The technical implementation scheme of the utility model is: a fiber reinforced composite sheet forming device, including a workbench, a heating plate, a lower mold, a hydraulic cylinder, a sliding frame, a first movable upper mold, a second movable upper mold, an extrusion plate, a movable frame, a cooling component and an extrusion component. The upper front side of the workbench is connected to the heating plate, the upper side of the heating plate is connected to the lower mold, the upper rear side of the workbench is connected to the hydraulic cylinder, the telescopic end of the hydraulic cylinder is connected to the sliding frame, the sliding frame is slidably connected to the workbench, the lower front side of the sliding frame is also connected to the heating plate, the lower left side of the upper heating plate is slidably connected to the first movable upper mold, the lower right side of the upper heating plate is slidably connected to the second movable upper mold, the first movable upper mold and the second movable upper mold are connected to the extrusion plate on the side away from each other, the lower side of the extrusion plate is connected to the movable frame, the movable frame is slidably connected to the upper heating plate, the sliding frame is provided with a cooling component capable of cooling the prepreg, and the workbench is provided with an extrusion component capable of separating the first movable upper mold and the second movable upper mold.

[0007] More preferably, the first movable upper mold and the second movable upper mold are both hollow structures.

[0008] More preferably, the extruded plates are all folding structures.

[0009] More preferably, the connection points between the extrusion plate and the first movable upper mold and the second movable upper mold are all inclined surfaces.

[0010] More preferably, the cooling assembly includes a fixed block, a connecting pipe and a nozzle, the upper sides of the left and right parts of the sliding frame are connected to the fixed blocks, the fixed blocks are connected to the connecting pipes, and the connecting pipes are connected to the nozzles.

[0011] More preferably, the extrusion assembly includes a support rod, a roller and an extrusion block, and the upper front side of the workbench is connected to two left and right support rods, and the support rods are rotatably connected to the rollers, and the extrusion plates are in contact with adjacent rollers. The upper sides of the left and right parts of the workbench are connected to extrusion blocks, and the extrusion blocks are extruded and matched with the adjacent extrusion plates.

[0012] Compared with the prior art, the utility model has the following advantages: when the sliding frame of the utility model moves upward to reset, the rollers push the extrusion plates away from each other, and the first movable upper mold and the second movable upper mold move away from each other and separate, so that the cured prepreg automatically falls off from the first movable upper mold and the second movable upper mold, thereby ensuring that the prepreg automatically falls off from the first movable upper mold and the second movable upper mold after cooling, thereby improving the demolding efficiency of the prepreg. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a three-dimensional structural schematic diagram of the utility model.

[0014] Figure 2 It is a schematic diagram of the cross-sectional three-dimensional structure of the utility model.

[0015] Figure 3 It is a schematic diagram of a partial three-dimensional structure of the utility model.

[0016] The markings of the components in the accompanying drawings are as follows: 1. workbench, 2. heating plate, 3. lower mold, 4. hydraulic cylinder, 5. sliding frame, 6. first movable upper mold, 7. second movable upper mold, 8. extrusion plate, 9. mobile frame, 10. fixed block, 11. connecting pipe, 12. nozzle, 13. support rod, 14. roller, 15. extrusion block. DETAILED DESCRIPTION

[0017] First of all, it should be pointed out that in the different described embodiments, the same parts are provided with the same reference numerals or the same component names, wherein the disclosure contained in the entire description can be transferred to the same parts with the same reference numerals or the same component names. Selected positional descriptions in the description, such as top, bottom, lateral, etc., also refer to the directly described and shown figures and are transferred to the new positions in the case of a change in position.

[0018] A fiber-reinforced composite sheet forming device, such as Figure 1-Figure 3 As shown, it includes a workbench 1, a heating plate 2, a lower die 3, a hydraulic cylinder 4, a sliding frame 5, a first movable upper die 6, a second movable upper die 7, an extrusion plate 8, a moving frame 9, a cooling assembly and an extrusion assembly. The front upper side of the workbench 1 is connected to the heating plate 2, the upper side of the heating plate 2 is connected to the lower die 3, the rear upper side of the workbench 1 is connected to the hydraulic cylinder 4, the telescopic end of the hydraulic cylinder 4 is connected to the sliding frame 5, the sliding frame 5 is slidably connected to the workbench 1, the front lower side of the sliding frame 5 is also connected to the heating plate 2, the lower left side of the upper heating plate 2 is slidably connected to the first movable upper die 6, the lower right side of the upper heating plate 2 is slidably connected to the second movable upper die 7, the first movable The interiors of the upper mold 6 and the second movable upper mold 7 are both hollow structures, which is convenient for accelerating the heating speed. The first movable upper mold 6 and the second movable upper mold 7 are connected with an extrusion plate 8 on the side away from each other. The extrusion plate 8 is a folding structure, which is convenient for extrusion and movement. The connection between the extrusion plate 8 and the first movable upper mold 6 and the second movable upper mold 7 is an inclined surface, which is convenient for dispersing cold air. The lower part of the extrusion plate 8 is connected with a movable frame 9 on the side close to each other. The movable frame 9 is slidably connected to the upper heating plate 2. The sliding frame 5 is provided with a cooling component that can cool the prepreg, and the workbench 1 is provided with an extrusion component that can separate the first movable upper mold 6 and the second movable upper mold 7.

[0019] like Figure 1 and Figure 2 As shown, the cooling assembly includes a fixed block 10, a connecting pipe 11 and a nozzle 12. The upper sides of the left and right parts of the sliding frame 5 are connected to the fixed block 10, the fixed block 10 is connected to the connecting pipe 11, and the connecting pipe 11 is connected to the nozzle 12.

[0020] like Figure 1 and Figure 2 As shown, the extrusion assembly includes a support rod 13, a roller 14 and an extrusion block 15. The left and right support rods 13 are connected to the front side of the upper part of the workbench 1. The support rods 13 are rotatably connected to the rollers 14. The extrusion plates 8 are in contact with adjacent rollers 14. The left and right upper sides of the workbench 1 are connected to the extrusion blocks 15. The extrusion blocks 15 are extrusion-matched with the adjacent extrusion plates 8.

[0021] When using the utility model, the workbench 1 is first placed in the fiber reinforced composite sheet forming area, and then the lower mold 3, the first movable upper mold 6 and the second movable upper mold 7 are heated to a certain temperature by the heating plate 2, and then the prepreg is placed on the lower mold 3 for preheating, and then the hydraulic cylinder 4 is started to push the sliding frame 5 to move downward, so that the extrusion plate 8 moves downward and disengages from the roller 14, and the roller 14 rotates on the support rod 13. When the extrusion plate 8 moves to the extrusion block 15, the extrusion block 15 pushes the extrusion plates 8 to approach each other, and the moving frames 9 approach each other, so that the first movable upper mold 6 and the second movable upper mold 7 move to approach each other, close, and then press down on the prepreg, so that the prepreg is cured and formed. After the prepreg is cured and formed, the sliding frame 5 moves upward and resets. When the cured prepreg is attached to the first When the upper mold 6 and the lower side of the second movable upper mold 7 are moved, cold air is introduced into the connecting pipe 11 on the fixed block 10, so that the cold air is blown to the cured prepreg and between the first movable upper mold 6 and the second movable upper mold 7, and the cold air is dispersed through the inclined surfaces on the extrusion plate 8, the first movable upper mold 6 and the second movable upper mold 7, so that the cured prepreg, the first movable upper mold 6 and the second movable upper mold 7 are cooled. When the sliding frame 5 moves upward and resets, the extrusion plates 8 are pushed away from each other by the rollers 14, and the first movable upper mold 6 and the second movable upper mold 7 are separated from each other, so that the cured prepreg automatically falls off from the first movable upper mold 6 and the second movable upper mold 7, thereby ensuring that the prepreg automatically falls off from the first movable upper mold 6 and the second movable upper mold 7 after cooling, thereby improving the demolding efficiency of the prepreg.

[0022] Although the present disclosure has been described with respect to only a limited number of embodiments, those skilled in the art having benefit of this disclosure will appreciate that various other embodiments may be designed without departing from the scope of the present invention. Therefore, the scope of the present invention should be limited only by the appended claims.

Claims

1. A fiber-reinforced composite sheet forming device, characterized in that: The invention comprises a workbench (1), a heating plate (2), a lower die (3), a hydraulic cylinder (4), a sliding frame (5), a first movable upper die (6), a second movable upper die (7), an extrusion plate (8), a movable frame (9), a cooling assembly and an extrusion assembly. The upper front side of the workbench (1) is connected to the heating plate (2), the upper side of the heating plate (2) is connected to the lower die (3), the upper rear side of the workbench (1) is connected to the hydraulic cylinder (4), the telescopic end of the hydraulic cylinder (4) is connected to the sliding frame (5), the sliding frame (5) is slidably connected to the workbench (1), the lower front side of the sliding frame (5) is also connected to the heating plate (2), and the upper heating plate (2) is connected to the lower side of the sliding frame (5). The left lower side of the plate (2) is slidably connected to a first movable upper mold (6), the right lower side of the upper heating plate (2) is slidably connected to a second movable upper mold (7), the first movable upper mold (6) and the second movable upper mold (7) are connected to an extrusion plate (8) on the side away from each other, and the lower side of the extrusion plate (8) is connected to a movable frame (9), and the movable frame (9) is slidably connected to the upper heating plate (2), the sliding frame (5) is provided with a cooling component capable of cooling the prepreg, and the workbench (1) is provided with an extrusion component capable of separating the first movable upper mold (6) and the second movable upper mold (7).

2. A fiber-reinforced composite sheet forming device according to claim 1, characterized in that: The first movable upper mold (6) and the second movable upper mold (7) are both hollow structures.

3. A fiber-reinforced composite sheet forming device according to claim 1, characterized in that: The extruded plates (8) are all folding structures.

4. A fiber-reinforced composite sheet forming device according to claim 1, characterized in that: The connection points between the extrusion plate (8) and the first movable upper mold (6) and the second movable upper mold (7) are all inclined surfaces.

5. A fiber-reinforced composite sheet forming device according to claim 1, characterized in that: The cooling assembly comprises a fixed block (10), a connecting pipe (11) and a nozzle (12); the upper sides of the left and right parts of the sliding frame (5) are both connected to the fixed block (10); the fixed block (10) is both connected to the connecting pipe (11); and the connecting pipe (11) is both connected to the nozzle (12).

6. A fiber-reinforced composite sheet forming device according to claim 5, characterized in that: The extrusion assembly comprises a support rod (13), a roller (14) and an extrusion block (15); the upper front side of the workbench (1) is connected to two left and right support rods (13); the support rods (13) are rotatably connected to rollers (14); the extrusion plates (8) are in contact with adjacent rollers (14); the upper sides of the left and right parts of the workbench (1) are connected to extrusion blocks (15); the extrusion blocks (15) are extrusion-matched with adjacent extrusion plates (8).

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