Gradient pressurization type hot press molding device for polyethylene and carbon fiber composite material

Abstract

The utility model relates to a gradient pressurization type hot-press forming device for polyethylene and carbon fiber composite materials, which comprises a machine base, a protective cover, a plurality of hot-press lower dies and a hot-press upper die, the protective cover is arranged on the machine base, the hot-press lower dies are arranged on the machine base, a plurality of first pneumatic cylinders are arranged on the protective cover, and a plurality of second pneumatic cylinders are arranged on the protective cover. A first pneumatic cylinder is installed on the machine base, a hot-pressing upper die is installed at the telescopic end of the first pneumatic cylinder, a first roller base and a second roller base are installed at the two ends of the machine base, two guide rollers are installed in the first roller base, two lifting rollers are installed in the second roller base, and an auxiliary mechanism is installed in the protective cover. The height of the lifting roller is adjusted, when the polyethylene and the carbon fibers are higher than the hot-pressing lower die and move, the damage to the polyethylene and the carbon fibers caused by contact friction between the polyethylene and the carbon fibers and the hot-pressing lower die is avoided, and when the polyethylene and the carbon fibers are flush with the top side of the hot-pressing lower die, hot-pressing forming is facilitated at the moment.

Description

Technical Field

[0001] This utility model relates to the field of polyethylene and carbon fiber composite material processing technology, and in particular to a gradient pressure hot pressing molding device for polyethylene and carbon fiber composite materials. Background Technology

[0002] The hot press molding apparatus is a gradient pressure hot press molding system specifically designed for polyethylene (PE) and carbon fiber composite materials. By precisely controlling the temperature and pressure gradient, it achieves high-quality molding of composite materials.

[0003] When existing equipment performs hot pressing, the height of polyethylene and carbon fiber is kept consistent. As a result, during the material transfer process, polyethylene and carbon fiber are prone to contact and friction with the hot pressing mold, leading to damage to polyethylene and carbon fiber. In addition, before processing, polyethylene and carbon fiber need to be manually passed through the equipment, resulting in low material feeding efficiency. Utility Model Content

[0004] The present invention addresses the problem of providing a gradient pressure hot pressing molding device for polyethylene and carbon fiber composite materials. This device solves the technical problems of existing devices where the height of polyethylene and carbon fiber remains consistent during hot pressing, leading to easy contact and friction between polyethylene and carbon fiber and the lower mold during material transfer, resulting in damage to polyethylene and carbon fiber. Additionally, the device requires manual handling of polyethylene and carbon fiber before processing, resulting in low material feeding efficiency.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A gradient pressure hot pressing molding apparatus for polyethylene and carbon fiber composite materials includes a base, a protective cover, a lower hot pressing mold, and an upper hot pressing mold. The protective cover is mounted on the base, and several lower hot pressing molds are mounted on the base. Several first air cylinders are mounted on the protective cover, and the upper hot pressing mold is mounted on the telescopic end of each first air cylinder. A first roller seat and a second roller seat are mounted at both ends of the base. Two guide rollers are mounted in the first roller seat, and two lifting rollers are mounted in the second roller seat. An auxiliary mechanism is mounted inside the protective cover.

[0007] Preferably, the pressure and temperature between the lower hot-pressing die and the upper hot-pressing die increase in a stepwise manner from the feed end to the discharge end of the machine base.

[0008] Preferably, a second pneumatic cylinder is installed on the side wall of the protective cover, the telescopic end of the second pneumatic cylinder is connected to the lifting arm, and both ends of the lifting arm are respectively connected to the second roller seat.

[0009] Preferably, the auxiliary mechanism includes a slide frame that is slidably installed inside the protective cover, the slide frame having a clamping groove, and a clamping plate installed in the clamping groove.

[0010] Preferably, the slide is equipped with an electric push rod, and the telescopic end of the electric push rod is connected to the clamping plate.

[0011] Preferably, the protective cover has sliding grooves on both sides inside, and a threaded rod is installed in the sliding groove, and the threaded rod is threadedly connected to the slider at the end of the slide.

[0012] Preferably, a motor is installed at the end of the protective cover, and the output end of the motor is connected to a threaded rod.

[0013] The beneficial effects of this utility model are: by adjusting the height of the lifting roller, when the polyethylene and carbon fiber are higher than the hot press lower mold, the polyethylene and carbon fiber are prevented from contacting and rubbing against the hot press lower mold when they move, thus avoiding damage to the polyethylene and carbon fiber; when the polyethylene and carbon fiber are flush with the top side of the hot press lower mold, it is convenient to perform hot pressing molding.

[0014] The clamping plate is moved down by an electric push rod for clamping and fixing. The movement of the slide carriage moves the polyethylene and carbon fiber inside the protective cover, moving the polyethylene and carbon fiber from the feed end of the machine base to the discharge end, thus realizing the auxiliary feeding work. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall first structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the overall second structure of this utility model;

[0017] Figure 3 This is a cross-sectional view of the filter box of this utility model.

[0018] Legend:

[0019] 1. Machine base; 2. Protective cover; 3. Lower hot press mold; 4. First pneumatic cylinder; 5. Upper hot press mold; 6. First roller seat; 7. Guide roller; 8. Second roller seat; 9. Lifting roller; 10. Second pneumatic cylinder; 11. Lifting arm; 12. Slide frame; 13. Clamping groove; 14. Clamping plate; 15. Electric push rod; 16. Slide groove; 17. Threaded rod; 18. Motor. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0021] Specific implementation examples are given below.

[0022] See Figures 1-3 A gradient pressure hot pressing molding device for polyethylene and carbon fiber composite materials includes a base 1, a protective cover 2, a lower hot pressing mold 3 and a higher hot pressing mold 5. The protective cover 2 is installed on the base 1, and several lower hot pressing molds 3 are installed on the base 1. Several first air cylinders 4 are installed on the protective cover 2. The upper hot pressing mold 5 is installed at the telescopic end of the first air cylinders 4. The pressure and temperature between the lower hot pressing mold 3 and the upper hot pressing mold 5 increase in a stepwise manner from the feed end to the discharge end of the base 1.

[0023] Both ends of the machine base 1 are equipped with a first roller seat 6 and a second roller seat 8. Two guide rollers 7 are installed inside the first roller seat 6, and two lifting rollers 9 are installed inside the second roller seat 8. A second pneumatic cylinder 10 is installed on the side wall of the protective cover 2. The telescopic end of the second pneumatic cylinder 10 is connected to a lifting arm 11, and both ends of the lifting arm 11 are connected to the second roller seat 8. The second pneumatic cylinder 10 drives the lifting arm 11 to rise and fall, thereby adjusting the height of the second roller seat 8 and the lifting rollers 9. When hot pressing is performed, the top side of the lifting roller 9 located below the second roller seat 8 is level with the top side of the hot pressing lower mold 3. At this point, polyethylene and carbon fiber are located on the lower hot press mold 3. The upper hot press mold 5 is moved down by the first pneumatic cylinder 4 to hot press the polyethylene and carbon fiber. The pressure and temperature between the lower hot press mold 3 and the upper hot press mold 5 at different parts increase in a stepwise manner. After hot pressing is completed, the second pneumatic cylinder 10 moves the second roller seat 8 and the lifting roller 9 up. At this time, the polyethylene and carbon fiber are separated from the lower hot press mold 3. The polyethylene and carbon fiber move on the guide roller 7 and the lifting roller 9. The moving distance is the width of one lifting roller 9. The operation is repeated to complete the stepwise hot pressing.

[0024] An auxiliary mechanism is installed inside the protective cover 2. This mechanism includes a slide 12 slidably mounted within the protective cover 2. A clamping groove 13 is formed within the slide 12, and a clamping plate 14 is installed within the clamping groove 13. An electric push rod 15 is mounted on the slide 12, and the telescopic end of the electric push rod 15 is connected to the clamping plate 14. Slide grooves 16 are formed on both sides inside the protective cover 2, and threaded rods 17 are installed within the slide grooves 16. The threaded rods 17 are threadedly connected to the slider at the end of the slide 12. A motor 18 is installed at the end of the protective cover 2, and the output end of the motor 18 is connected to the threaded rod 17. Polyethylene and carbon fiber are then passed through the base 1. Two guide rollers 7 and two lifting rollers 9 at the feed end place the polyethylene and carbon fiber ends into the clamping groove 13 of the slide 12. The electric push rod 15 drives the clamping plate 14 to move down for clamping and fixing. The motor 18 drives the threaded rod 17 to rotate, and then the slide 12 moves through the threaded slider. At this time, the slide 12 moves inside the protective cover 2, moving the polyethylene and carbon fiber from the feed end of the machine base 1 to the discharge end. The electric push rod 15 drives the clamping plate 14 to move up, and after removing the polyethylene and carbon fiber, they pass through the two guide rollers 7 and two lifting rollers 9 from the discharge end of the machine base 1.

[0025] Adjust the height of the lifting roller 9 so that the polyethylene and carbon fiber are higher than the hot press mold 3. This will prevent the polyethylene and carbon fiber from coming into contact with the hot press mold 3 and causing damage to them. When the polyethylene and carbon fiber are flush with the top side of the hot press mold 3, it will be easier to perform hot pressing.

[0026] The electric push rod 15 drives the clamping plate 14 to move down for clamping and fixing. The movement of the slide 12 drives the polyethylene and carbon fiber to move inside the protective cover 2, moving the polyethylene and carbon fiber from the feed end of the machine base 1 to the discharge end, thus realizing the auxiliary feeding work.

[0027] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A gradient pressure hot pressing molding apparatus for polyethylene and carbon fiber composite materials, characterized in that, The machine includes a base (1), a protective cover (2), a lower hot press die (3), and an upper hot press die (5). The protective cover (2) is installed on the base (1). Several lower hot press dies (3) are installed on the base (1). Several first pneumatic cylinders (4) are installed on the protective cover (2). The upper hot press die (5) is installed on the telescopic end of the first pneumatic cylinder (4). A first roller seat (6) and a second roller seat (8) are installed at both ends of the base (1). Two guide rollers (7) are installed in the first roller seat (6). Two lifting rollers (9) are installed in the second roller seat (8). An auxiliary mechanism is installed inside the protective cover (2).

2. The gradient pressure hot pressing molding apparatus for polyethylene and carbon fiber composite materials according to claim 1, characterized in that, The pressure and temperature between the lower hot press die (3) and the upper hot press die (5) increase in a stepwise manner from the feed end to the discharge end of the machine base (1).

3. The gradient pressure hot pressing molding apparatus for polyethylene and carbon fiber composite materials according to claim 2, characterized in that, The protective cover (2) is equipped with a second pneumatic cylinder (10) on its side wall. The extension end of the second pneumatic cylinder (10) is connected to the lifting arm (11). The two ends of the lifting arm (11) are respectively connected to the second roller seat (8).

4. The gradient pressure hot pressing molding apparatus for polyethylene and carbon fiber composite materials according to claim 3, characterized in that, The auxiliary mechanism includes a slide (12) that is slidably installed inside the protective cover (2), and a clamping groove (13) is provided inside the slide (12), and a clamping plate (14) is installed inside the clamping groove (13).

5. The gradient pressure hot pressing molding apparatus for polyethylene and carbon fiber composite materials according to claim 4, characterized in that, An electric push rod (15) is installed on the slide (12), and the telescopic end of the electric push rod (15) is connected to the clamp (14).

6. The gradient pressure hot pressing molding apparatus for polyethylene and carbon fiber composite materials according to claim 5, characterized in that, The protective cover (2) has sliding grooves (16) on both sides inside. A threaded rod (17) is installed in the sliding groove (16), and the threaded rod (17) is threadedly connected to the slider at the end of the slide (12).

7. The gradient pressure hot pressing molding apparatus for polyethylene and carbon fiber composite materials according to claim 6, characterized in that, A motor (18) is installed at the end of the protective cover (2), and the output end of the motor (18) is connected to the threaded rod (17).

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