A moulding press for forming a gasket for a hydrogen-producing electrolyser

Abstract

The utility model relates to a sealing gasket demoulding related technical field, specifically is a kind of hydrogen production electrolytic cell sealing gasket's mould pressing forming die, be set in temperature control box, including upper die plate and lower die plate, and the temperature control box is equipped with the drive assembly of control the upper die plate lifting;Lower die plate is provided with forming plate, and the forming plate is formed with multiple cavities, the forming plate is provided with multiple positioning members, for assisting pre-pressing blank can be aligned with the cavity;Extrusion mechanism is set on the lower die plate, can penetrate the cavity, when the lower die plate resets, the elastic component on the upper die plate can control the extrusion mechanism rises to the extrusion action of the gasket formed is executed, the utility model reduces the area of sealing gasket and cavity adhesion with the help of elastic component's elastic force, can effectively reduce the resistance when demoulding, reduce the risk of mould jam or damage due to adhesion, to further improve the demoulding efficiency of sealing gasket.

Description

Technical Field

[0001] This utility model relates to the technical field of gasket demolding, specifically a molding die for a hydrogen electrolysis cell gasket. Background Technology

[0002] The sealing gasket of the hydrogen electrolyzer is one of the most crucial components in a hydrogen production system. Its main function is to ensure the electrolyzer's airtightness and prevent leakage of electrolyte, hydrogen, and oxygen. Sealing gaskets are typically made of high-performance materials, such as polytetrafluoroethylene (PTFE) or composite materials. They are generally manufactured using a die-pressing process. During die filling, the material may be added in powder or pre-pressed blank form, and is positioned by robotic arms or manually to ensure uniform distribution.

[0003] After the existing pre-pressed blank is placed into the mold, it is pressed at high temperature in a hot press to melt the material and fill the mold cavity. After molding, it needs to be cooled and solidified. After solidification, a mechanical interlocking structure is formed between the gasket and the mold surface, resulting in a large adhesion area between the sealing gasket and the mold. During demolding, the demolding efficiency is reduced due to the resistance of the mold. Utility Model Content

[0004] The purpose of this invention is to provide a molding die for a sealing gasket of a hydrogen electrolyzer, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A molding die for a sealing gasket of a hydrogen electrolyzer is set in a temperature control box, including an upper template and a lower template, and a drive assembly for controlling the lifting and lowering of the upper template is installed in the temperature control box;

[0007] The lower template is provided with a forming plate, and the forming plate has multiple cavities. The forming plate is also provided with multiple positioning elements to assist the pre-pressed blank in aligning with the cavities.

[0008] An extrusion mechanism is mounted on the lower template and can penetrate the cavity. When the lower template is reset, an elastic component mounted on the upper template can control the extrusion mechanism to rise and perform an extrusion action on the formed gasket.

[0009] The molding die for the sealing gasket of the hydrogen electrolyzer described above: the driving assembly includes an electric telescopic rod installed in the temperature control box, the movable end of the electric telescopic rod is fixed to the upper template, and the two ends of the upper template are respectively slidably connected to guide rods installed in the temperature control box.

[0010] The molding die for the sealing gasket of the hydrogen electrolyzer described above: a plurality of molding rods that can be inserted into the cavity are provided on the end of the upper template away from the electric telescopic rod.

[0011] The molding die for the sealing gasket of the hydrogen electrolyzer described above: the positioning component includes a limiting block installed on the molding plate in a triangular structure, a plurality of which are arranged along the circumference of the cavity, and the top of the limiting block faces the center of the cavity.

[0012] The molding die for the sealing gasket of the hydrogen electrolyzer described above has multiple through holes formed along the circumference at the bottom end of the cavity.

[0013] The compression molding die for the sealing gasket of the hydrogen electrolyzer described above: the extrusion mechanism includes connecting shafts symmetrically arranged in the lower template, the connecting shafts being rotatably connected to the lower template, a first limiting groove and a second limiting groove being formed on the connecting shafts respectively, a connecting sleeve being slidably sleeved along the axial direction of the connecting shaft, and a second ball bearing being movably arranged on the inner wall of the connecting sleeve and slidingly engaging with the second limiting groove;

[0014] It also includes a lifting plate that is slidably disposed within the lower template. Both ends of the lifting plate are fixed to the connecting sleeve, and the lifting plate is provided with a plurality of protruding posts that can penetrate the through hole.

[0015] The compression molding die for the sealing gasket of the hydrogen electrolyzer described above: the elastic component includes a support cylinder mounted on the lower template, a lifting rod slidably disposed at one end of the support cylinder away from the lower template, a cylindrical cavity formed at one end of the lifting rod placed inside the support cylinder, a first ball bearing movably disposed inside the cylindrical cavity, and a connecting shaft capable of penetrating the support cylinder and extending into the cylindrical cavity, wherein the first ball bearing is slidably engaged with the first limiting groove;

[0016] It also includes a spring, which is disposed inside the support cylinder, with one end of the spring abutting against the lifting rod and the other end abutting against the inner end of the support cylinder.

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

[0018] When filling the mold, the material is placed in the form of a pre-compressed blank. With the help of the positioning component, the pre-compressed blank can automatically align with the cavity before being extruded. After the sealing gasket is formed, with the help of the elastic force stored in the elastic component, the extrusion mechanism can extend out of the cavity again and extrude the sealing gasket. This reduces the adhesion area between the sealing gasket and the cavity, effectively reduces the resistance during demolding, and reduces the risk of mold jamming or damage caused by adhesion, thereby further improving the demolding efficiency of the sealing gasket. Attached Figure Description

[0019] Figure 1 A schematic diagram of the molding die for the sealing gasket of a hydrogen electrolyzer.

[0020] Figure 2 A schematic diagram of the drive assembly and upper template in the molding die for the sealing gasket of a hydrogen electrolyzer.

[0021] Figure 3 A schematic diagram of the upper and lower templates in the molding die for the sealing gasket of a hydrogen electrolyzer.

[0022] Figure 4 A schematic diagram of the molding plate in the compression molding die for sealing gaskets in hydrogen electrolyzers.

[0023] Figure 5 A schematic diagram of the cavity and extrusion mechanism in the molding die for the sealing gasket of a hydrogen electrolyzer.

[0024] Figure 6 A schematic diagram of the elastic component in the compression molding die for a hydrogen electrolyzer sealing gasket.

[0025] Figure 7 A schematic diagram of the connecting shaft, lifting rod, and connecting sleeve in the molding die for the sealing gasket of a hydrogen electrolyzer.

[0026] In the diagram: 1. Temperature control box; 2. Electric telescopic rod; 3. Guide rod; 4. Upper template; 5. Lower template; 6. Press rod; 7. Forming plate; 701. Cavity; 702. Through hole; 8. Limiting block; 9. Lifting rod; 901. First ball bearing; 10. Support cylinder; 11. Lifting plate; 1101. Protruding column; 12. Spring; 13. Connecting sleeve; 1301. Second ball bearing; 14. Connecting shaft; 1401. First limiting groove; 1402. Second limiting groove. Detailed Implementation

[0027] Various exemplary embodiments, features, and aspects of this application will now be described in detail with reference to the accompanying drawings. The same reference numerals in the drawings denote elements that have the same or similar functions. Although various aspects of the embodiments are shown in the drawings, they are not necessarily drawn to scale unless specifically indicated otherwise.

[0028] The term “exemplary” as used herein means “serving as an example, embodiment, or illustration.” Any embodiment illustrated herein as “exemplary” is not necessarily to be construed as superior to or better than other embodiments.

[0029] Furthermore, to better illustrate this application, numerous specific details are provided in the following detailed embodiments. Those skilled in the art should understand that this application can be implemented even without certain specific details. In some instances, methods, means, and elements well-known to those skilled in the art have not been described in detail, in order to highlight the main points of this application.

[0030] Please see Figures 1-7 In this embodiment of the present invention, a molding die for a sealing gasket of a hydrogen electrolyzer is set in a temperature control box 1, including an upper template 4 and a lower template 5, and a drive assembly for controlling the lifting and lowering of the upper template 4 is installed in the temperature control box 1.

[0031] The lower template 5 is provided with a forming plate 7, and the forming plate 7 has a plurality of cavities 701 formed thereon. The forming plate 7 is provided with a plurality of positioning elements to assist the pre-pressed blank in aligning with the cavity 701.

[0032] The extrusion mechanism is mounted on the lower template 5 and can penetrate the cavity 701. When the upper template 4 is reset, the elastic component mounted on the upper template 4 can control the extrusion mechanism to rise and perform an extrusion action on the formed gasket.

[0033] In this embodiment, when filling the mold, the material is placed in the form of a pre-compressed blank. Under the action of the positioning component, the pre-compressed blank can be automatically aligned with the cavity 701 before being extruded. The upper template 4 is controlled to press down by the drive component, and the upper template 4 extrudes the elastic component during its descent, thereby controlling the extrusion mechanism to descend to be flush with the bottom of the cavity 701. This avoids interference between the extrusion mechanism and the extrusion molding of the pre-compressed blank. After the sealing gasket is formed, the upper template 4 is reset. Under the elastic action of the elastic component, the extrusion mechanism can extend out of the cavity 701 again and extrude the sealing gasket. This reduces the adhesion area between the sealing gasket and the cavity 701, effectively reducing the resistance during demolding and reducing the risk of mold jamming or damage caused by adhesion, thereby further improving the demolding efficiency of the sealing gasket.

[0034] In one embodiment, the driving assembly includes an electric telescopic rod 2 installed inside the temperature control box 1. The movable end of the electric telescopic rod 2 is fixed to the upper template 4, and both ends of the upper template 4 are slidably connected to guide rods 3 installed inside the temperature control box 1.

[0035] Preferably, the upper template 4 is provided with a plurality of compression rods 6 at the end away from the electric telescopic rod 2, which can be inserted into the cavity 701.

[0036] For further solutions to this utility model, please refer to [link / reference]. Figure 4The positioning element includes a limiting block 8 installed on the molding plate 7 in a triangular structure, with multiple limiting blocks 8 arranged along the circumference of the cavity 701, and the top of the limiting block 8 facing the center of the cavity 701.

[0037] Preferably, the bottom end of the cavity 701 has a plurality of through holes 702 formed along the circumference.

[0038] For further solutions to this utility model, please refer to [link / reference]. Figure 6 and Figure 7 The extrusion mechanism includes a connecting shaft 14 symmetrically arranged in the lower template 5. The connecting shaft 14 is rotatably connected to the lower template 5. A first limiting groove 1401 and a second limiting groove 1402 are respectively formed on the connecting shaft 14. A connecting sleeve 13 is slidably sleeved along the axial direction of the connecting shaft 14. A second ball bearing 1301 that slides and cooperates with the second limiting groove 1402 is movably arranged on the inner wall of the connecting sleeve 13.

[0039] It also includes a lifting plate 11 that is slidably disposed in the lower template 5. The two ends of the lifting plate 11 are respectively fixed to the connecting sleeve 13. The lifting plate 11 is provided with a plurality of protruding posts 1101 that can penetrate the through hole 702.

[0040] It should be noted that the first limiting groove 1401 is divided into a first threaded groove and a straight groove. In the initial state, the first ball 901 is located in the first threaded groove, and the second limiting groove 1402 is divided into a second threaded groove.

[0041] As a further embodiment of this utility model, the elastic component includes a support cylinder 10 mounted on the lower template 5. A lifting rod 9 is slidably disposed at one end of the support cylinder 10 away from the lower template 5. A cylindrical cavity is formed at one end of the lifting rod 9 inside the support cylinder 10. A first ball bearing 901 is movably disposed inside the cylindrical cavity. The connecting shaft 14 can penetrate the support cylinder 10 and extend into the cylindrical cavity. The first ball bearing 901 is slidably engaged with the first limiting groove 1401.

[0042] It also includes a spring 12, which is disposed inside the support cylinder 10. One end of the spring 12 abuts against the lifting rod 9, and the other end abuts against the inner end of the support cylinder 10.

[0043] In the initial state, the spring 12 is in a compressed state. When molding the pre-pressed blank, the upper template 4 is controlled to descend. After the upper template 4 descends to abut against the lifting rod 9, the lifting rod 9 is squeezed and slides towards the support cylinder 10. The first ball 901 inside generates an inclined force on the first threaded groove, causing the connecting shaft 14 to rotate. With the cooperation of the second threaded groove and the second ball 1301, when the lifting rod 9 is lifted, it can drive the lifting plate 11 to descend synchronously. When the first ball 901 moves into the straight groove, the protrusion 1101 is flush with the bottom end of the cavity 701, avoiding interference of the protrusion 1101 with the forming of the sealing gasket. At this time, the pressing rod 6 has not yet abutted against the pre-pressed blank. When the first ball 901 slides in the straight groove, the connecting shaft 14 does not rotate, thus ensuring that the protrusion 1101 is completely retracted into the through hole 702 before the pressing rod 6 presses down on the pre-pressed blank.

[0044] After the gasket is formed, the upper template 4 is reset. At this time, under the elastic force of the spring 12, the lifting rod 9 moves upward. After the upper template 4 is reset and maintains a certain distance from the forming plate 7, the first ball 901 slides into the first threaded groove again to realize the reverse rotation of the connecting shaft 14, thereby causing the lifting plate 11 to rise. The protrusion 1101 extends out of the through hole 702 to squeeze the gasket, so that the bottom of the gasket separates from the bottom of the cavity 701. The adhesion area between the gasket and the cavity 701 is reduced. With the help of the elastic force of the spring 12, the pressure during demolding is effectively reduced, which assists in the demolding of the gasket.

[0045] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0046] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A molding die for a sealing gasket of a hydrogen electrolyzer, set inside a temperature control box (1), comprising an upper template (4) and a lower template (5), wherein a drive assembly for controlling the lifting and lowering of the upper template (4) is installed inside the temperature control box (1). Its characteristics are: The lower template (5) is provided with a forming plate (7), and the forming plate (7) has multiple cavities (701) formed on it. The forming plate (7) is provided with multiple positioning elements to assist the pre-pressed blank in aligning with the cavity (701). The extrusion mechanism is set on the lower template (5) and can penetrate the cavity (701). When the upper template (4) is reset, the elastic component set on the upper template (4) can control the extrusion mechanism to rise and perform an extrusion action on the formed gasket.

2. The molding die for a sealing gasket in a hydrogen electrolyzer according to claim 1, characterized in that, The drive assembly includes an electric telescopic rod (2) installed in the temperature control box (1). The movable end of the electric telescopic rod (2) is fixed to the upper template (4), and both ends of the upper template (4) are slidably connected to the guide rod (3) installed in the temperature control box (1).

3. The molding die for a sealing gasket in a hydrogen electrolyzer according to claim 2, characterized in that, The upper template (4) is provided with a plurality of compression rods (6) that can be inserted into the cavity (701) at the end away from the electric telescopic rod (2).

4. The molding die for a sealing gasket in a hydrogen electrolyzer according to claim 1, characterized in that, The positioning element includes a limiting block (8) installed on the molding plate (7) in a triangular structure. Multiple limiting blocks (8) are arranged along the circumference of the cavity (701), and the top of the limiting block (8) faces the center of the cavity (701).

5. The molding die for a sealing gasket in a hydrogen electrolyzer according to claim 1, characterized in that, The bottom end of the cavity (701) has multiple through holes (702) formed along the circumference.

6. The molding die for a sealing gasket in a hydrogen electrolyzer according to claim 5, characterized in that, The extrusion mechanism includes a connecting shaft (14) symmetrically arranged in the lower template (5). The connecting shaft (14) is rotatably connected to the lower template (5). A first limiting groove (1401) and a second limiting groove (1402) are respectively formed on the connecting shaft (14). A connecting sleeve (13) is slidably sleeved along the axial direction of the connecting shaft (14). A second ball (1301) that slides and cooperates with the second limiting groove (1402) is movably arranged on the inner wall of the connecting sleeve (13). It also includes a lifting plate (11) that is slidably disposed in the lower template (5). The two ends of the lifting plate (11) are respectively fixed to the connecting sleeve (13). The lifting plate (11) is provided with a plurality of protrusions (1101) that can penetrate the through hole (702).

7. The molding die for a sealing gasket in a hydrogen electrolyzer according to claim 6, characterized in that, The elastic component includes a support cylinder (10) mounted on the lower template (5). A lifting rod (9) is slidably disposed at one end of the support cylinder (10) away from the lower template (5). A cylindrical cavity is formed at one end of the lifting rod (9) placed inside the support cylinder (10). A first ball bearing (901) is movably disposed inside the cylindrical cavity. The connecting shaft (14) can penetrate the support cylinder (10) and extend into the cylindrical cavity. The first ball bearing (901) is slidably engaged with the first limiting groove (1401). It also includes a spring (12), which is disposed inside the support cylinder (10). One end of the spring (12) abuts against the lifting rod (9), and the other end abuts against the inner end of the support cylinder (10).

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