A composite material screw forming device

Abstract

The application discloses a composite material screw forming device, which comprises an upper die, a lower die matched with the upper die, a core die assembly formed by arranging a plurality of core dies in series, and a driving unit for pressing the core die assembly, wherein the core die assembly is installed in a cavity surrounded by the upper die and the lower die.

Description

Technical Field

[0001] This invention belongs to the field of composite material molding technology, and specifically relates to a composite material screw molding device. Background Technology

[0002] Composite material screws offer the advantage of lightweight design and are in high demand in fields where weight reduction is crucial. Current composite material screw molding processes typically employ one-piece molding, with molds usually arranged in a flat layout. This requires separate molding equipment and molds, resulting in low molding efficiency and high costs. Summary of the Invention

[0003] To address the shortcomings of existing technologies, this invention provides a composite material screw molding device that does not require a separate molding equipment, has a simple structure, low cost, can mold multiple parts at once, and has high molding efficiency.

[0004] To achieve the above objectives, the technical solution adopted by the present invention is: a composite material screw forming device, comprising: an upper mold; a lower mold matching the upper mold; a core mold assembly formed by a series arrangement of multiple core molds, the core mold assembly being installed in a cavity surrounded by the upper mold and the lower mold; and a driving unit for pressurizing the core mold assembly.

[0005] Furthermore, both the upper mold and the lower mold are provided with a plurality of heating rods for heating the core mold assembly and a plurality of cooling pipes for cooling the core mold assembly.

[0006] Furthermore, each of the core molds includes an outer core mold and an inner core mold that matches the outer core mold; one side of the inner core mold is configured to have a molding surface that matches the front side of the composite screw; the other side of the inner core mold is configured to have a molding surface that matches the back side of the composite screw; two adjacent core molds form a molding cavity for the composite screw.

[0007] Furthermore, the outer core mold and the inner core mold are coaxially arranged.

[0008] Furthermore, each of the outer core molds is provided with several through holes, which are matched with the guide shaft, and the core mold is slidably connected to the guide shaft through the through holes.

[0009] Furthermore, a plurality of elastic bodies are installed on one side of each outer core mold, and a plurality of countersunk holes are correspondingly provided on the other side of each outer core mold; each elastic body abuts against the corresponding countersunk hole on the adjacent outer core mold.

[0010] Furthermore, the elastomer is elastic rubber or a spring coil.

[0011] Furthermore, it also includes a top block located within the cavity and coaxially arranged with the core mold. The top block is connected to the driving unit, and the driving unit pushes the core mold to move along the axial direction of the core mold within the cavity through the top block.

[0012] Furthermore, the drive unit is one of a pneumatic cylinder, a hydraulic cylinder, or an electric cylinder.

[0013] Furthermore, the drive unit is connected to the upper mold and the lower mold via a connector.

[0014] Compared with the prior art, the beneficial effects achieved by the present invention are as follows: The present invention sets up an upper mold; a lower mold that matches the upper mold; a core mold assembly formed by multiple core molds arranged in series; the core mold assembly is installed in the cavity surrounded by the upper mold and the lower mold; a driving unit for pressurizing the core mold assembly; no independent molding equipment is required, the device has a simple structure, low cost, can mold multiple parts at one time, and has high molding efficiency. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of a composite material screw forming device provided in an embodiment of the present invention;

[0016] Figure 2 This is a schematic diagram of the initial assembly state of the core mold in an embodiment of the present invention (the upper mold is not shown);

[0017] Figure 3 This is a schematic diagram of the core mold closing and locking state in an embodiment of the present invention (upper mold not shown);

[0018] Figure 4 This is a schematic diagram of the core mold structure in an embodiment of the present invention;

[0019] Figure 5 This is a longitudinal cross-sectional schematic diagram of adjacent core molds in the mold closing and locking state in an embodiment of the present invention;

[0020] In the diagram: 1. Drive unit; 2. Connector; 3. Upper mold; 4. Lower mold; 5. Heating rod; 6. Cooling pipe; 7. Guide shaft; 8. Top block; 9. Core mold; 9-1. Outer core mold; 9-2. Inner core mold; 10. Elastomer; A. Composite material screw; B. Countersunk hole; C. Through hole. Detailed Implementation

[0021] The present invention will be further described below with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and should not be used to limit the scope of protection of the present invention.

[0022] A composite material screw forming device includes an upper mold 3, a lower mold 4 that matches the upper mold 3, a core mold assembly formed by multiple core molds 9 arranged in series, the core mold assembly being installed in a cavity enclosed by the upper mold 3 and the lower mold 4; and a drive unit for pressurizing the core mold assembly.

[0023] The upper mold 3 and lower mold 4 are heated and cured at the specified temperature by heating rod 5, and cooled by cooling pipe 6. Figure 1 As shown, heating rod 5 and cooling pipe 6 are used to quickly heat up and cool down, resulting in high molding efficiency.

[0024] The upper mold 3 and lower mold 4 form a cylindrical cavity, inside which a circular top block 8 and a set of multiple serially arranged core molds 9 are installed and slidably guided by a guide shaft 7 passing through a through hole C on the core molds 9. The initial assembly state of the set of multiple serially arranged core molds 9 is as follows. Figure 2 As shown.

[0025] The drive unit 1 is connected to the upper mold 3 and the lower mold 4 via the connector 2. The drive unit 1 pushes and pulls the top block 8 to move the multiple serially arranged core molds 9 laterally along the guide shaft 7, thereby locking or unlocking the core mold assembly. The locked state of a group of multiple serially arranged core molds 9 is as follows: Figure 3 As shown. The drive unit 1 can be a pneumatic cylinder, hydraulic cylinder, or electric cylinder, and can take various forms. The drive unit 1 eliminates the need for dedicated molding equipment, resulting in low overall molding costs.

[0026] like Figure 4 , Figure 5 As shown, each core mold 9 includes an outer core mold 9-1 and an inner core mold 9-2 that matches the outer core mold 9-1. The outer core mold 9-1 has circumferentially symmetrically arranged through holes C for guiding the shaft 7 through and enabling sliding. The outer core mold 9-1 also has circumferentially symmetrically arranged countersunk holes B. An elastomer 10 is mounted on the back of the countersunk hole B, which accommodates the elastomer 10 at corresponding positions of adjacent core molds 9 when the core mold 9 is locked. After the drive unit 1 applies pressure to lock the core mold 9, the elastomer 10 is compressed. After the drive unit 1 releases the locking force, the elastomer 10 pushes each core mold 9 apart. The elastomer 10 is elastic rubber or a spring ring; the use of the elastomer 10 between the core molds achieves efficient mold opening and release.

[0027] The outer core mold 9-1 and the inner core mold 9-2 are arranged coaxially. The opening side of the inner core mold 9-2 (having a molding surface that matches the front side of the composite screw A) is fitted to the front side of the composite screw A, and the back side of the opening side of the core mold 9-2 (having a molding surface that matches the back side of the composite screw A) is fitted to the back side of the composite screw A in the adjacent core mold, such as... Figure 5 As shown, two adjacent mandrels 9 form the molding cavity of the composite material screw A.

[0028] This invention does not require independent molding equipment, has a simple device structure, and low overall molding cost. The core molds 9 are arranged in a series of multiple pieces, with a quantity of 2 to 30 core molds, allowing for the simultaneous molding of multiple composite material screws A, resulting in high molding efficiency. The outer core mold 9-1 and inner core mold 9-2 can be replaced with corresponding core mold components according to the actual specifications of the composite material screws A, achieving multi-specification molding. The core molds 9 adopt a series layout and are guided by the guide shaft 7, ensuring smooth and stable movement.

[0029] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A composite material screw forming device, characterized in that, include: Upper mold(3); A lower mold (4) that matches the upper mold (3). A core mold assembly formed by arranging multiple core molds (9) in series is installed in a cavity surrounded by the upper mold (3) and the lower mold (4); A drive unit (1) for pressurizing the core mold assembly. Each of the core molds (9) includes an outer core mold (9-1) and an inner core mold (9-2) that matches the outer core mold (9-1); one side of the inner core mold (9-2) is configured to have a molding surface that matches the front side of the composite screw (A); the other side of the inner core mold (9-2) is configured to have a molding surface that matches the back side of the composite screw (A); two adjacent core molds (9) form a molding cavity for the composite screw (A).

2. The composite material screw forming device according to claim 1, characterized in that, Both the upper mold (3) and the lower mold (4) are provided with several heating rods (5) for heating the core mold assembly and several cooling pipes (6) for cooling the core mold assembly.

3. The composite material screw forming device according to claim 1, characterized in that, The outer core mold (9-1) and the inner core mold (9-2) are coaxially arranged.

4. The composite material screw forming device according to claim 1, characterized in that, Each of the outer core molds (9-1) is provided with a plurality of through holes (C), the through holes (C) are matched with the guide shaft (7), and the core mold (9) is slidably connected to the guide shaft (7) through the through holes (C).

5. The composite material screw forming device according to claim 1, characterized in that, Each of the outer core molds (9-1) has a plurality of elastic bodies (10) installed on one side, and each of the outer core molds (9-1) has a plurality of countersunk holes (B) corresponding to the other side; each of the elastic bodies (10) abuts against the corresponding countersunk hole (B) on the adjacent outer core mold (9-1).

6. The composite material screw forming apparatus according to claim 5, characterized in that, The elastomer (10) is elastic rubber or a spring coil.

7. The composite material screw forming device according to claim 1, characterized in that, It also includes a top block (8) located in the cavity and coaxially arranged with the core mold (9). The top block (8) is connected to the driving unit (1). The driving unit (1) pushes the core mold (9) to move along the axial direction of the core mold (9) in the cavity through the top block (8).

8. The composite material screw forming device according to claim 1, characterized in that, The drive unit (1) is one of a pneumatic cylinder, a hydraulic cylinder, or an electric cylinder.

9. The composite material screw forming device according to claim 1, characterized in that, The drive unit (1) is connected to the upper mold (3) and the lower mold (4) via a connector (2).

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