Rubber sealing ring compression molding machine

Abstract

The utility model discloses a rubber sealing ring compression molding machine which comprises a bottom plate, a top plate, a lower die holder and an upper die block, supporting rods are evenly and vertically arranged at the four corners of the upper surface of the bottom plate at equal intervals, the top plate is located over the bottom plate, and the lower surface of the top plate is fixed to the upper surfaces of the supporting rods; two hydraulic cylinders are symmetrically arranged on the top plate, the hydraulic cylinders are vertically downward, telescopic rods of the hydraulic cylinders are located between the top plate and the bottom plate, pressing plates are arranged at the ends of the telescopic rods of the hydraulic cylinders, and the upper module is located under the pressing plates; the lower die base is arranged in the center of the upper surface of the bottom plate, and a plurality of first cavities are formed in the upper surface of the lower die base. According to the utility model, after hot press molding, the upper module moves upwards and leaves the molded sealing ring, and at the moment, a worker can pinch the corner positions of waste materials among the sealing rings through the peripheral notch grooves to completely tear off the plurality of sealing rings and the waste materials, so that a plurality of rubber sealing rings are obtained.

Description

Technical Field

[0001] The utility model relates to the technical field of rubber sealing ring production, in particular to a rubber sealing ring molding press. Background Art

[0002] A sealing ring is a mechanism installed in mechanical parts for sealing, which is widely used in mechanical equipment engineering and aerospace equipment. The sealing ring can ensure better sealing at the connection position of parts, prevent the overflow of internal flowing liquid or gas, and also prevent external air from entering the parts; most sealing circles are circular rubber materials, usually made from small pieces of rubber raw materials through hot pressing, and then the formed sealing ring is removed; some existing forming equipment can only form a small number of sealing rings at a time, with low efficiency and great room for improvement.

[0003] In view of the above situation, the present utility model is proposed. Content of the Utility Model

[0004] Aiming at the deficiencies of the existing technology, the purpose of the present utility model is to provide a rubber sealing ring molding press for solving the problems mentioned in the background art.

[0005] To solve the above technical problems, the present utility model provides the following technical solutions.

[0006] The present utility model provides a rubber sealing ring molding press, which includes a bottom plate, a top plate, a lower die base and an upper die block. Four corners of the upper surface of the bottom plate are vertically and evenly arranged with support rods at equal intervals. The top plate is located directly above the bottom plate, and the lower surface of the top plate is fixed on the upper surface of the support rods;

[0007] Two hydraulic cylinders are symmetrically arranged on the top plate. The hydraulic cylinders are vertically downward, and the telescopic rods of the hydraulic cylinders are located between the top plate and the bottom plate. The end of the telescopic rod of the hydraulic cylinder is provided with a pressing plate, and the upper die block is located directly below the pressing plate;

[0008] The lower die base is arranged in the center of the upper surface of the bottom plate. The upper surface of the lower die base is provided with a plurality of first cavities, and the lower surface of the upper die block is provided with a plurality of second cavities. The first cavities and the second cavities are vertically aligned;

[0009] A material table is arranged in the middle of the first cavity on the upper surface of the lower die base, and a convex block is arranged in the middle of the second cavity on the upper die block. The material table and the convex block are vertically aligned.

[0010] Preferably, a plurality of through holes are arranged around the upper surface of the pressing plate, and a plurality of screw holes are arranged around the upper surface of the upper die block. The through holes are aligned with the screw holes, and bolts pass through the through holes and are screwed into the screw holes.

[0011] Preferably, both the first cavity and the second cavity are semi-circular ring-shaped, and the upper surface of the material table is flush with the upper surface of the lower die base.

[0012] Preferably, the cross-sections of the first cavity and the second cavity are semi-circular, and the shapes of the first cavity and the second cavity are the same.

[0013] Preferably, the first cavities are evenly distributed at equal intervals along the length and width directions of the upper surface of the lower die base, and the second cavities are evenly distributed at equal intervals along the length and width directions of the lower surface of the upper die block.

[0014] Preferably, notch grooves are provided on the front, back, and sides of the lower die base.

[0015] Preferably, a reinforcing rib plate is provided between the side surface of the hydraulic cylinder and the upper surface of the top plate.

[0016] Compared with the prior art, the present utility model has the following beneficial effects:

[0017] The expansion and contraction of the two hydraulic cylinders can drive the pressing plate and the upper die block to move up and down. When the upper die block moves downward, the upper die block can just enter the inside of the lower die base, the first cavity and the second cavity are just aligned up and down, and the convex block just fits against the material table;

[0018] During use, the rubber block raw materials are placed one by one at the central position of the material table. When the upper die block moves downward, the convex block will just press on the rubber block raw materials. Because both the lower die base and the upper die block are in a high-temperature state, the convex block presses on the rubber block, and under the action of high temperature and high pressure, the rubber block can melt and be flattened;

[0019] After the melting rubber block is extruded, it can enter the first cavity and the second cavity, and be cooled and formed in the first cavity and the second cavity to obtain a sealing ring; at this time, each sealing ring is connected together by the waste material remaining on the upper surface of the material table;

[0020] After hot pressing and forming, the upper die block moves upward and leaves the formed sealing ring. At this time, the worker can pinch the corner position of the waste material between the sealing rings through the notch grooves around, and tear off multiple sealing rings and the waste material completely to obtain multiple rubber sealing rings;

[0021] The forming equipment can hot press multiple sealing rings at one time, with high production efficiency, and the rubber block raw materials can completely enter and fill the first cavity and the second cavity, and the product qualification rate is high and the quality is also good. Description of the Drawings

[0022] Figure 1 It is the overall three-dimensional view of the present utility model;

[0023] Figure 2This is a three-dimensional view of the lower die base of the present utility model;

[0024] Figure 3 This is a three-dimensional view of the upper module of the present utility model.

[0025] In the figure: 1, bottom plate; 11, support rod; 2, top plate; 21, hydraulic cylinder; 22, pressing plate; 23, bolt; 3, lower die base; 31, first cavity; 32, material table; 33, notch groove; 4, upper module; 41, second cavity; 42, convex block. Specific embodiments

[0026] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments.

[0027] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model.

[0028] As Figures 1-3 shown, a rubber sealing ring molding machine includes a bottom plate 1, a top plate 2, a lower die base 3 and an upper module 4. Support rods 11 are vertically and evenly arranged at equal intervals at the four corners of the upper surface of the bottom plate 1. The top plate 2 is located directly above the bottom plate 1, and the lower surface of the top plate 2 is fixed on the upper surface of the support rods 11. The support rods 11 play a supporting role for the top plate 2;

[0029] Two hydraulic cylinders 21 are symmetrically arranged on the top plate 2. The hydraulic cylinders 21 are vertically downward. The telescopic rods of the hydraulic cylinders 21 are located between the top plate 2 and the bottom plate 1. The end of the telescopic rod of the hydraulic cylinder 21 is provided with a pressing plate 22. The upper module 4 is located directly below the pressing plate 22. The telescopic rods of the two hydraulic cylinders 21 can move up and down to drive the pressing plate 22 to move up and down;

[0030] The lower die base 3 is arranged in the center of the upper surface of the bottom plate 1. A plurality of first cavities 31 are arranged on the upper surface of the lower die base 3. A plurality of second cavities 41 are arranged on the lower surface of the upper module 4. The first cavities 31 and the second cavities 41 are vertically aligned. When the upper module 4 moves downward, the second cavities 41 can just fit the first cavities 31;

[0031] On the upper surface of the lower die base 3, a material table 32 is provided in the middle of the first cavity 31. On the upper module 4, a convex block 42 is provided in the middle of the second cavity 41. The material table 32 and the convex block 42 are vertically aligned. Rubber block raw materials are placed on the material table 32 one by one. When the convex block 42 moves downward, it can just extrude the rubber block raw materials.

[0032] A plurality of through holes are provided around the upper surface of the pressing plate 22. A plurality of screw holes are provided around the upper surface of the upper module 4. The through holes are aligned with the screw holes. The bolt 23 passes through the through hole and is screwed into the screw hole. That is, through the bolt 23, the upper module 4 and the pressing plate 22 are detachably connected, and the pressing plate 22 can be easily removed for maintenance.

[0033] Both the first cavity 31 and the second cavity 41 are semi-circular ring-shaped. The upper surface of the material table 32 is flush with the upper surface of the lower die base 3. The melted rubber raw materials enter the first cavity 31 and the second cavity 41 to fill the first cavity 31 and the second cavity 41, so as to form and obtain the sealing ring raw materials.

[0034] The cross-sections of the first cavity 31 and the second cavity 41 are semi-circular, and the shapes of the first cavity 31 and the second cavity 41 are the same.

[0035] The first cavities 31 are evenly distributed at equal intervals along the length direction and the width direction of the upper surface of the lower die base 3. The second cavities 41 are evenly distributed at equal intervals along the length direction and the width direction of the lower surface of the upper module 4.

[0036] Notches 33 are provided on the front, back and sides of the lower die base 3.

[0037] A reinforcing rib plate is provided between the side surface of the hydraulic cylinder 21 and the upper surface of the top plate 2.

[0038] In summary: The telescoping of the two hydraulic cylinders 21 can drive the pressing plate 22 and the upper module 4 to move up and down. When the upper module 4 moves downward, the upper module 4 can just enter the inside of the lower die base 3. The first cavity 31 and the second cavity 41 are just vertically aligned, and the convex block 42 just fits against the material table 32;

[0039] During use, the rubber block raw materials are placed one by one at the central position of the material table 32. When the upper module 4 moves downward, the convex block 42 will just press on the rubber block raw materials. Because both the lower die base 3 and the upper module 4 are in a high-temperature state, the convex block 42 presses on the rubber block. Under the action of high temperature and high pressure, the rubber block can melt and be flattened;

[0040] After the melted rubber block is extruded, it can enter the first cavity 31 and the second cavity 41 and be cooled and formed in the first cavity 31 and the second cavity 41 to obtain the sealing rings; at this time, each sealing ring is connected together through the waste materials remaining on the upper surface of the material table;

[0041] After hot pressing and forming, the upper die block 4 moves upward and leaves the formed sealing ring. At this time, the worker can pinch the corner position of the waste between the sealing rings through the notch grooves 33 around, and tear off multiple sealing rings and the waste completely to obtain multiple rubber sealing rings;

[0042] The forming equipment can hot press multiple sealing rings at one time, with high production efficiency. Moreover, the rubber block raw material can completely enter and fill the first cavity 31 and the second cavity 41, resulting in a high product yield and good quality.

[0043] The above is only the preferred specific implementation mode of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution of the present utility model and its inventive concept, makes equivalent substitutions or changes, and should be covered within the protection scope of the present utility model.

Claims

1. A rubber sealing ring compression molding machine, characterized in that: It comprises a bottom plate (1), a top plate (2), a lower die base (3) and an upper die block (4); support rods (11) are evenly and vertically arranged at four corners of the upper surface of the bottom plate (1); the top plate (2) is located directly above the bottom plate (1); and the lower surface of the top plate (2) is fixed to the upper surface of the support rods (11); Two hydraulic cylinders (21) are symmetrically arranged on the top plate (2), the hydraulic cylinders (21) are vertically downward, the telescopic rods of the hydraulic cylinders (21) are located between the top plate (2) and the bottom plate (1), a pressing plate (22) is arranged at the end of the telescopic rod of the hydraulic cylinder (21), and the upper module (4) is located directly below the pressing plate (22); The lower die base (3) is arranged at the center of the upper surface of the bottom plate (1), the upper surface of the lower die base (3) is provided with a plurality of first cavities (31), the lower surface of the upper die block (4) is provided with a plurality of second cavities (41), and the first cavities (31) and the second cavities (41) are aligned vertically; The upper surface of the lower die base (3) is located in the middle of the first cavity (31) and is provided with a material table (32), and the upper die block (4) is located in the middle of the second cavity (41) and is provided with a convex block (42), and the material table (32) and the convex block (42) are aligned up and down.

2. A rubber sealing ring compression molding machine according to claim 1, characterized in that: A plurality of through holes are arranged around the upper surface of the pressure plate (22), and a plurality of screw holes are arranged around the upper surface of the upper module (4). The through holes are aligned with the screw holes, and the bolts (23) pass through the through holes and are screwed into the screw holes.

3. The rubber sealing ring compression molding machine according to claim 1, characterized in that: The first cavity (31) and the second cavity (41) are both semi-circular, and the upper surface of the material platform (32) is flush with the upper surface of the lower die base (3).

4. The rubber sealing ring compression molding machine according to claim 1, characterized in that: The cross-sections of the first cavity (31) and the second cavity (41) are semicircular, and the shapes of the first cavity (31) and the second cavity (41) are consistent.

5. The rubber sealing ring compression molding machine according to claim 1, characterized in that: The first cavities (31) are evenly distributed along the length and width directions of the upper surface of the lower die base (3), and the second cavities (41) are evenly distributed along the length and width directions of the lower surface of the upper die block (4).

6. The rubber sealing ring compression molding machine according to claim 1, characterized in that: The front, back and side surfaces of the lower die base (3) are all provided with notches (33).

7. The rubber sealing ring compression molding machine according to claim 1, characterized in that: A reinforcing rib plate is provided between the side surface of the hydraulic cylinder (21) and the upper surface of the top plate (2).

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