Improved die for sealing element

Abstract

The utility model discloses an improved die of a sealing element, which comprises a lower die, the lower die is correspondingly connected with a middle plate, a fixing groove is correspondingly arranged between the lower die and the middle plate, a fixing element is correspondingly arranged in the fixing groove, a movable die core is correspondingly sleeved in the fixing element, one end of the fixing element is correspondingly connected with the lower die, and the other end of the fixing element is correspondingly connected with the middle plate. The other end of the fixing piece is correspondingly connected with the upper pressing plate, and a sizing material groove is correspondingly formed in the joint of the fixing piece and the upper pressing plate. The utility model has the advantage of dimethyl ether resistance, the number of layers of the mould is simplified, and the production efficiency can be greatly improved by increasing the number of the movable mould cores and alternately producing.

Description

Technical Field

[0001] The utility model relates to the technical field of rubber moulds, in particular to an improved mould for a sealing element. Background Art

[0002] Seals are materials or parts that prevent fluids or solid particles from leaking between adjacent joint surfaces and prevent external impurities such as dust and moisture from invading the internal parts of machinery and equipment. The storage room temperature of seals is best below 30°C to avoid high temperature aging of seals.

[0003] Existing seals are generally made of dimethyl ether resistant materials and produced using a transfer injection process. However, during the production process, the transfer injection groove and the space between the lower mold core and the metal part must be filled with material, resulting in a huge waste of rubber. In addition, the production mold has many layers and is very inefficient. Therefore, an improved mold for a seal is needed. Utility Model Content

[0004] In order to overcome the defects in the prior art, an improved mold for a sealing member is provided.

[0005] The utility model is achieved through the following scheme:

[0006] An improved mold for a seal comprises a lower mold, the lower mold is correspondingly connected to a middle plate, a fixing groove is correspondingly provided between the lower mold and the middle plate, a fixing piece is correspondingly provided in the fixing groove, a movable mold core is correspondingly sleeved in the fixing piece, one end of the fixing piece is correspondingly connected to the lower mold, the other end of the fixing piece is correspondingly connected to an upper pressing plate, and a rubber groove is correspondingly provided at the connection between the fixing piece and the upper pressing plate.

[0007] A built-in cavity recessed inwardly is provided on one side of the lower mold, and a clamping ring is correspondingly provided in the middle of the middle plate, and the clamping ring is correspondingly connected with the built-in cavity to form a fixing groove.

[0008] The fixing piece is a hollow cylindrical structure, and a limiting hole is correspondingly provided in the middle of the fixing piece, and the limiting hole matches the movable mold core.

[0009] The movable mold core can be correspondingly inserted into the limiting hole and connected with the fixing piece.

[0010] The other end of the fixing member is correspondingly provided with a rubber groove which is concave inwardly in an annular shape, and a rubber member is correspondingly provided in the rubber groove.

[0011] The rubber component and the fixing component are integrally formed.

[0012] The beneficial effects of the utility model are:

[0013] 1. The utility model discloses an improved mold for a seal, which changes the transfer injection process into a compression molding process, adds a movable mold core in the middle of the mold to fill the space, avoids wasting rubber materials, and reduces production costs.

[0014] 2. The improved mold of the sealing element of the utility model simplifies the number of mold layers and can significantly improve production efficiency by increasing the number of movable mold cores and performing alternating production. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a structural schematic diagram of an improved mold for a seal of the utility model;

[0016] Figure 2 It is a structural schematic diagram of the sealing member in the utility model;

[0017] In the figure: 1 is the lower mold, 2 is the middle plate, 3 is the fixed groove, 4 is the built-in cavity, 5 is the clamping ring, 6 is the fixing part, 7 is the movable mold core, 8 is the limiting hole, 9 is the upper pressure plate, 10 is the rubber groove, and 11 is the rubber part. DETAILED DESCRIPTION

[0018] The utility model is further described below in conjunction with the accompanying drawings:

[0019] like Figure 1 As shown, an improved mold for a seal comprises a lower mold 1, the lower mold 1 is correspondingly connected to a middle plate 2, a fixing groove 3 is correspondingly provided between the lower mold 1 and the middle plate 2, a fixing member 6 is correspondingly provided in the fixing groove 3, a movable mold core 7 is correspondingly sleeved in the fixing member 6, one end of the fixing member 6 is correspondingly connected to the lower mold 1, and the other end of the fixing member 6 is correspondingly connected to an upper pressing plate 9, and a glue groove 10 is correspondingly provided at the connection between the fixing member 6 and the upper pressing plate 9. The utility model is an improved mold for a seal, which changes the transfer injection process into a molding process, adds a movable mold core 7 in the middle of the mold, fills the space, avoids wasting glue, and reduces production costs.

[0020] A built-in cavity 4 recessed inward is provided on one side of the lower mold 1, and a snap ring 5 is correspondingly provided in the middle of the middle plate 2, and the snap ring 5 is correspondingly connected with the built-in cavity 4 to form a fixing groove 3. The utility model forms a stable space between the lower mold 1 and the middle plate 2, thereby ensuring the movable space of the fixing part 6 and the movable mold core 7 and improving the overall flexibility.

[0021] The fixing part 6 is a hollow cylindrical structure, and a limiting hole 8 is correspondingly provided in the middle of the fixing part 6, and the limiting hole 8 matches the movable mold core 7. The material of the fixing part 6 can be selected from iron, steel, stainless steel, aluminum, etc. The movable mold core 7 can be correspondingly inserted into the limiting hole 8 and connected to the fixing part 6. In the utility model, the movable mold core 7 can be freely inserted or taken out of the fixing part 6. When the upper pressing plate 9 is used for molding, the movable mold core 7 is inserted into the fixing part 6. When the rubber material is cooled and the seal is formed, the upper pressing plate 9 moves upward to take out the movable mold core 7, and the product seal is intact. The utility model simplifies the number of mold layers, and can increase the number of movable mold cores 7 and alternate production to greatly improve production efficiency.

[0022] like Figure 1 and Figure 2 As shown, the other end of the fixing member 6 is provided with a correspondingly inwardly recessed annular rubber groove 10, and a rubber member 11 is provided in the rubber groove 10. In the utility model, the rubber groove 10 can be injected with a variety of materials such as fluororubber, silicone rubber, plastic, etc. The rubber member 11 is integrally formed with the fixing member 6. When the upper pressing plate 9 is used for molding, the hot rubber in the rubber groove 10 is squeezed together with the fixing member 6. After the rubber is cooled, the rubber member 11 is integrally formed with the fixing member 6, which has the advantage of being resistant to dimethyl ether, greatly improving the structural strength of the seal and increasing its service life.

[0023] Although the technical solutions of the present invention have been described and listed in detail, it should be understood that it is obvious to those skilled in the art to make modifications to the above-mentioned embodiments or adopt equivalent alternatives. These modifications or improvements made without departing from the spirit of the present invention are within the scope of protection required by the present invention.

Claims

1. An improved mold for a seal, comprising a lower mold (1), characterized in that: The lower mold (1) is connected to the middle plate (2) in correspondence, a fixing groove (3) is provided between the lower mold (1) and the middle plate (2), a fixing member (6) is provided in the fixing groove (3), a movable mold core (7) is provided in the fixing member (6), one end of the fixing member (6) is connected to the lower mold (1), the other end of the fixing member (6) is connected to the upper pressing plate (9), a glue groove (10) is provided at the connection between the fixing member (6) and the upper pressing plate (9), one side of the lower mold (1) is provided with an inwardly recessed built-in cavity (4), a snap ring (5) is provided in the middle of the middle plate (2), and the snap ring (5) is connected to the built-in cavity (4) in correspondence to form the fixing groove (3).

2. The improved mold for a seal according to claim 1, characterized in that: The fixing member (6) is a hollow cylindrical structure, and a limiting hole (8) is correspondingly provided in the middle of the fixing member (6), and the limiting hole (8) matches the movable mold core (7).

3. The improved mold for a seal according to claim 2, characterized in that: The movable mold core (7) can be correspondingly inserted into the limiting hole (8) and correspondingly connected to the fixing member (6).

4. The improved mold for a seal according to claim 1, characterized in that: The other end of the fixing member (6) is correspondingly provided with a rubber groove (10) which is concave inwardly in an annular shape, and a rubber member (11) is correspondingly provided in the rubber groove (10).

5. The improved mold for a seal according to claim 4, characterized in that: The rubber component (11) and the fixing component (6) are integrally formed.

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