Isostatic pressing forming rubber mold

Abstract

The utility model discloses an isostatic pressing forming rubber mold which comprises a cylinder body and a cover body, the cover body and the cylinder body are connected in a sealed and sleeved mode through threads and form a forming space used for being filled with powder, a guide pipe communicated with the forming space is arranged on the cover body, and the outer end of the guide pipe is used for being connected with a vacuum device to enable the forming space to form a vacuum environment. A powder absorption preventing pad is arranged in the forming space and is close to the inner end of the guide pipe. The barrel body and the cover body are in sealed connection through the threads, so that the sealing effect is good, and the forming effect is good; besides, the powder suction prevention pad can prevent powder from entering the vacuum device through the guide pipe when the vacuum device carries out vacuum suction work on the forming space, so that the loss of the powder can be avoided, the forming effect can be ensured, and the vacuum device can be prevented from being damaged.

Description

Technical Field

[0001] The utility model relates to the technical field of carbon material molding, in particular to an isostatic pressing molding rubber mold. Background Art

[0002] Commonly used carbon material molding methods include molding, extrusion, and isostatic pressing. The advantage of isostatic pressing is that the material is placed in a soft mold during molding, and the liquid at the mold acts on the mold with the same pressure and is transferred to the material. Because the force in each direction is equal, the molded product is isotropic in structure and performance.

[0003] There are two types of isostatic pressing processes: direct isostatic pressing and molding followed by isostatic pressing. Direct isostatic pressing is to directly fill and seal the powder into the mold cavity, and then directly place it in a liquid medium for pressure molding; while the molding followed by isostatic pressing process is to pre-form the blank through a rigid mold, and then seal the blank in a plastic package for isostatic pressing. The advantage of direct isostatic pressing is that the product does not go through the molding step, and the homogeneity of the molded sample is better, which reduces the anisotropy of all parts and directions of the product, and is more suitable for the application of high-end products. However, the traditional mold has poor sealing effect and poor molding effect. Utility Model Content

[0004] The technical problem to be solved by the utility model is to overcome the deficiencies in the prior art and provide an isostatic pressing rubber mold with good sealing effect and excellent molding effect.

[0005] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0006] An isostatic pressing rubber mold comprises a cover body and a cylinder body, wherein the cover body and the cylinder body are connected by a threaded sealing sleeve to form a molding space for filling powder, the cover body is provided with a conduit connected to the molding space, the outer end of the conduit is used to connect with a vacuum device to form a vacuum environment in the molding space, and an anti-powder absorption pad is arranged in the molding space, and the anti-powder absorption pad is arranged close to the inner end of the conduit.

[0007] As a further improvement of the above technical solution:

[0008] An upper connecting piece protruding outward is provided on the circumference of the cover body, and a lower connecting piece protruding outward is provided on the circumference of the cylinder body. The upper connecting piece and the lower connecting piece are tightly connected.

[0009] The upper connecting piece and the lower connecting piece are provided with a plurality of mounting holes which penetrate in sequence and are fastened and connected by bolts.

[0010] Washers are arranged on the outer sides of the upper connecting piece and the lower connecting piece, and the washers are in contact with the nuts of the bolts.

[0011] A sleeve is sleeved on the outer side of the cylinder.

[0012] The diameter of the anti-powder absorption pad is the same as the inner diameter of the cylinder.

[0013] The anti-powder absorption pad is a sponge pad.

[0014] Compared with the prior art, the advantages of the utility model are:

[0015] The cylinder body and the cover body are connected by threaded sealing, which has good sealing effect and excellent molding effect. In addition, the anti-powder suction pad can prevent powder from entering the vacuum device through the conduit when the vacuum device performs vacuum suction on the molding space, which can not only avoid the loss of powder and ensure the molding effect, but also avoid damage to the vacuum device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the isostatic pressing rubber mold.

[0017] Legend:

[0018] 100. powder; 1. cylinder; 11. lower connecting piece; 12. bolt; 13. gasket; 2. cover; 21. upper connecting piece; 3. molding space; 4. conduit; 5. anti-powder absorption pad; 6. sleeve. DETAILED DESCRIPTION

[0019] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0020] like Figure 1 As shown, the isostatic pressing rubber mold of this embodiment includes a cover body 1 and a cylinder body 2, which are connected by threaded sealing sleeves to form a molding space 3 for filling powder 100, and a conduit 4 connected to the molding space 3 is provided on the cover body 1, and the outer end of the conduit 4 is used to connect with a vacuum device to form a vacuum environment in the molding space 3, and an anti-powder absorption pad 5 is provided in the molding space 3, and the anti-powder absorption pad 5 is arranged near the inner end of the conduit 4. The cylinder body 2 and the cover body 1 are connected by threaded sealing, and the sealing effect is good and the molding effect is good; in addition, the anti-powder absorption pad 5 can prevent the powder 100 from entering the vacuum device through the conduit 4 when the vacuum device performs vacuum suction on the molding space 3, which can not only avoid the loss of the powder 100 and ensure the molding effect, but also avoid damage to the vacuum device.

[0021] In this embodiment, an upper connecting member 11 protruding outward is provided on the circumference of the cover body 1, and a lower connecting member 21 protruding outward is provided on the circumference of the cylinder body 2, and the upper connecting member 11 and the lower connecting member 21 are tightly connected. The lower connecting member 21 and the upper connecting member 11 can further strengthen the firmness of the connection between the cylinder body 2 and the cover body 1.

[0022] In this embodiment, the upper connecting member 11 and the lower connecting member 21 are provided with a plurality of mounting holes which penetrate in sequence, and are fastened and connected by bolts 12. The bolts 12 are flange-type structures, which can further improve the fastness of the connection between the cylinder body 2 and the cover body 1.

[0023] In this embodiment, washers 13 are provided on the outer sides of the upper connecting member 11 and the lower connecting member 21, and the washers 13 are in contact with the nuts of the bolts 12. The washers 13 can strengthen the connection between the bolts 12 and the lower connecting member 21 and the upper connecting member 11.

[0024] In this embodiment, a sleeve 6 is sleeved on the outer side of the cylinder 2. The cover 1 and the cylinder 2 are soft molds, and the sleeve 6 is a steel sleeve, which can protect the cylinder 2 and prevent the cylinder 2 from being damaged.

[0025] In this embodiment, the diameter of the anti-powder absorption pad 5 is the same as the inner diameter of the cylinder 2. The anti-powder absorption pad 5 can completely cover the powder 100 to prevent the powder 100 from entering the conduit 4.

[0026] In this embodiment, the anti-powder absorption pad 5 is a sponge pad. The sponge pad is easy to purchase and has a low price.

[0027] Working process: first put the cylinder 2 into the sleeve 6, then pour the formed powder 100 into the cylinder 2, and then cover the powder 100 with an anti-powder pad 5 to prevent powder from being sucked during vacuuming, and then put on the cover 1, and then use the gasket 13 and bolts 12 to tighten and seal, and finally vacuum the conduit 4. After vacuuming, it can be placed in the isostatic press for isostatic pressing.

[0028] The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments. For those skilled in the art, improvements and changes obtained without departing from the technical concept of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. An isostatic pressing rubber mold, comprising a cover body (1) and a cylinder body (2), characterized in that: The cover body (1) and the cylinder body (2) are connected by a threaded sealing sleeve to form a molding space (3) for filling powder (100); the cover body (1) is provided with a conduit (4) connected to the molding space (3); the outer end of the conduit (4) is used to connect with a vacuum device to form a vacuum environment in the molding space (3); an anti-powder absorption pad (5) is provided in the molding space (3); the anti-powder absorption pad (5) is arranged close to the inner end of the conduit (4).

2. The isostatic pressing rubber mold according to claim 1, characterized in that: An upper connecting piece (11) protruding outward is provided on the circumference of the cover body (1), and a lower connecting piece (21) protruding outward is provided on the circumference of the cylinder body (2), and the upper connecting piece (11) and the lower connecting piece (21) are tightly connected.

3. The isostatic pressing rubber mold according to claim 2, characterized in that: The upper connecting piece (11) and the lower connecting piece (21) are provided with a plurality of mounting holes which penetrate in sequence, and are fastened and connected by bolts (12).

4. The isostatic pressing rubber mold according to claim 3, characterized in that: Washers (13) are provided on the outer sides of the upper connecting piece (11) and the lower connecting piece (21), and the washers (13) are in contact with the nuts of the bolts (12).

5. The isostatic pressing rubber mold according to claim 4, characterized in that: A sleeve (6) is sleeved on the outer side of the cylinder (2).

6. The isostatic pressing rubber mold according to claim 5, characterized in that: The diameter of the anti-powder absorption pad (5) is the same as the inner diameter of the cylinder (2).

7. The isostatic pressing rubber mold according to claim 6, characterized in that: The anti-powder absorption pad (5) is a sponge pad.

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