Elastic mold for isostatic pressing of ceramic parts

Abstract

The utility model ceramic piece forming technical field relates to a kind of elastic mould for isostatic pressing of ceramic piece, by setting flange on elastic mould cover and elastic mould cover, flange is located the junction of both, can let elastic mould cover and elastic mould cover connect more closely.In addition, sealing ring is set in two flanges, improve the sealing of elastic mould.In addition, set sealing element, the upper sleeve plate and lower sleeve plate in sealing element clamp two flanges, and further ensure enough sealing property.The upper sleeve plate and lower sleeve plate are connected by fastening bolt, not only easy to disassemble and assemble, but also can guarantee enough clamping tight.Elastic mould cover and elastic mould cover are provided with support sleeve and support cover, and a plurality of through holes are provided on the support sleeve and the support cover, which can provide support and fixation without affecting the pressure transfer of isostatic pressing, ensuring the molding of ceramic parts.

Description

Technical Field

[0001] This utility model relates to the field of ceramic part forming technology, and in particular to an elastic mold for isostatic pressing of ceramic parts. Background Technology

[0002] Ceramic material forming generally involves two main processes: injection molding and dry pressing. Dry pressing, especially isostatic pressing, is more suitable for ceramic parts with simple structures but high precision requirements. In isostatic pressing, ceramic particles are placed in an elastic mold, which is then placed in a sealed container filled with a liquid such as oil or water. Pressure is gradually increased through a pressurization system, ensuring that all surfaces of the material are subjected to uniform pressure from all directions. Therefore, it is suitable for high-precision requirements.

[0003] Because ceramic particles need to be placed into the elastic mold, and the ceramic parts need to be removed after isostatic pressing, a sufficiently large opening needs to be set on the elastic mold. However, after the elastic mold is placed in the high-pressure container, the opening needs to be closed and kept sealed.

[0004] Because elastic molds need to have sufficient elasticity, they are generally made of rubber or polyurethane materials. Furthermore, the high liquid pressure in high-pressure containers poses a significant challenge to the sealing performance of elastic molds. In addition, many ceramic parts are hollow, which not only increases the difficulty of designing elastic molds but also adds to the challenge of ensuring their sealing. Utility Model Content

[0005] In view of this, the purpose of this utility model is to propose an elastic mold for isostatic pressing of ceramic parts, so as to solve the technical problem that the elastic mold in the prior art needs to have sufficient sealing performance.

[0006] To achieve the above objectives, this utility model provides an elastic mold for isostatic pressing of ceramic parts, including an elastic mold sleeve, wherein the upper opening of the elastic mold sleeve is further provided with a detachable elastic mold cover, and the elastic mold further includes: A flange is fixedly connected to the elastic sleeve and the elastic cover. After the elastic cover is put on, the two flanges fit together. A sealing ring is also fixedly connected to the flange on the elastic sleeve. A sealing element, which is fitted over the outside of the flange and is used to clamp the two flanges.

[0007] Furthermore, the upper opening of the elastic sleeve is provided with a sleeve opening that mates with the elastic sleeve cover, and a sealing ring is also provided on the inner wall of the sleeve opening.

[0008] Furthermore, the sealing component includes an upper sleeve plate and a lower sleeve plate, the upper sleeve plate and the lower sleeve plate are the same in shape and size and are arranged opposite to each other, and the upper sleeve plate and the lower sleeve plate are connected by fastening bolts.

[0009] Furthermore, the upper and lower sleeves are circular ring structures, and the cross-sections of the upper and lower sleeves are in the shape of an inverted "L".

[0010] Furthermore, a core mold is provided at the center of the elastic sleeve, the core mold is fixedly connected to the elastic sleeve, an insertion hole is provided at the upper end of the core mold, and an insertion rod is fixedly connected at the center of the lower end of the elastic sleeve, the insertion rod is slidably connected in the insertion hole at the upper end of the core mold.

[0011] Furthermore, a support sleeve is provided on the outer side of the elastic mold sleeve to support the elastic mold sleeve, and the support sleeve is provided with several through holes.

[0012] Furthermore, a support cover is provided on the outer side of the elastic mold cover to support the elastic mold cover, and the support cover is also provided with several through holes.

[0013] Furthermore, the top of the support sleeve is provided with multiple positioning holes, and the bottom of the support cover is provided with positioning pins that cooperate with the positioning holes.

[0014] The beneficial effects of this utility model are as follows: 1. By providing flanges on the elastic mold sleeve and the elastic mold cover, with the flanges located at the connection between the two, the connection between the elastic mold sleeve and the elastic mold cover can be made tighter. In addition, sealing rings are provided in the two flanges to improve the sealing performance of the elastic mold.

[0015] 2. An additional sealing component is provided. The upper and lower sleeve plates in the sealing component clamp the two flanges together, thereby ensuring sufficient sealing. The upper and lower sleeve plates are connected by fastening bolts, which not only facilitates disassembly and assembly but also ensures a sufficiently tight clamping.

[0016] 3. A support sleeve and a support cover are provided outside the elastic mold sleeve and the elastic mold cover. The support sleeve and the support cover are provided with multiple through holes. While providing support and fixation, they will not affect the pressure transfer of isostatic pressing, thus ensuring the molding of ceramic parts. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only for this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of the elastic mold of the device of this utility model.

[0019] Figure 2 This is a schematic diagram of the overall structure and principle of the device of this utility model.

[0020] Figure 3This is a schematic diagram of the structure of the device after the support cover is opened.

[0021] Figure 4 This is a schematic diagram of the support cover in the device of this utility model.

[0022] Figure 5 This is a schematic diagram of the elastic sleeve in the device of this utility model.

[0023] Figure 6 This is a schematic diagram of the connection structure between the elastic sleeve and the elastic cover in the device of this utility model.

[0024] Figure 7 This is a schematic diagram of the sealing component in the device of this utility model.

[0025] The diagram is marked as follows: 101. Elastic mold sleeve; 102. Elastic mold cover; 103. Sealing component; 104. Flange; 105. Sealing ring; 106. Sleeve opening; 107. Core mold; 108. Insert rod; 109. Upper sleeve plate; 110. Lower sleeve plate; 111. Fastening bolt; 112. Support sleeve; 113. Support cover; 114. Through hole; 115. Positioning hole; 116. Positioning post. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments.

[0027] It should be noted that, unless otherwise defined, the technical or scientific terms used in this utility model should have the ordinary meaning understood by one of ordinary skill in the art to which this utility model pertains. The terms "first," "second," and similar terms used in this utility model do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0028] The first aspect of this utility model is as follows: Figure 1 , Figure 5 , Figure 6 and Figure 7As shown, since elastic molds need to have sufficient elasticity, they are generally made of rubber or polyurethane materials. Furthermore, the high liquid pressure in high-pressure containers poses a significant challenge to the sealing performance of elastic molds. In addition, many ceramic parts are hollow structures, which not only increases the difficulty of designing elastic molds but also complicates their sealing. Therefore, this invention designs an elastic mold sleeve 101 and a detachable elastic mold cover 102.

[0029] The upper opening of the elastic mold sleeve 101 is provided with a sleeve opening 106 that matches the elastic mold cover 102, ensuring that the side wall thickness of the entire elastic mold is uniform after the elastic mold cover 102 is placed on the elastic mold sleeve 101.

[0030] Flanges 104 are fixedly connected to the elastic sleeve 101 and the elastic cover 102. The two flanges 104 are located at the connection between the two, and the two flanges 104 can fit together after the elastic cover 102 is closed. A sealing ring 105 is fixedly connected to the flange 104 on the elastic sleeve 101. In addition, a sealing ring 105 is also provided on the inner wall of the sleeve opening 106.

[0031] By providing flanges 104 on the elastic mold sleeve 101 and the elastic mold cover 102, with the flanges 104 located at the connection between the two, the connection between the elastic mold sleeve 101 and the elastic mold cover 102 can be made tighter. In addition, sealing rings 105 are provided in the two flanges 104 to improve the sealing performance of the elastic mold.

[0032] In order to further improve the sealing performance of the elastic mold, a sealing member 103 is also provided at the connection between the elastic mold sleeve 101 and the elastic mold cover 102.

[0033] A sealing element 103 is fitted over the outside of the flange 104 to clamp the two flanges 104. The sealing element 103 includes an upper sleeve plate 109 and a lower sleeve plate 110. The upper sleeve plate 109 and the lower sleeve plate 110 are the same shape and size and are arranged opposite each other. The upper sleeve plate 109 and the lower sleeve plate 110 have a circular structure and their cross-sections are inverted "L" shapes. The upper sleeve plate 109 and the lower sleeve plate 110 are connected by fastening bolts 111.

[0034] A sealing element 103 is provided, in which the upper sleeve 109 and the lower sleeve 110 clamp the two flanges 104, thereby ensuring sufficient sealing. The upper sleeve 109 and the lower sleeve 110 are connected by fastening bolts 111, which not only makes disassembly and assembly convenient, but also ensures that the clamping is tight enough.

[0035] In addition, a core mold 107 is provided at the center of the elastic mold sleeve 101 to ensure that the shaped ceramic part is a hollow structure. The structure of the core mold 107 can be set according to the structure of the ceramic part.

[0036] Preferably, the core mold 107 is fixedly connected to the elastic sleeve 101, the upper end of the core mold 107 is provided with an insertion hole, and the lower end of the elastic sleeve 101 is fixedly connected with an insertion rod 108, which is slidably connected in the insertion hole at the upper end of the core mold 107.

[0037] The second aspect of this utility model is as follows: Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, in order to ensure the stability of the entire elastic mold and sealing component 103, a support structure is also provided on their exterior.

[0038] The elastic mold sleeve 101 has a support sleeve 112 on its outer side to support the elastic mold sleeve 101. The support sleeve 112 has several through holes 114. The elastic mold cover 102 also has a support cover 113 on its outer side to support the elastic mold cover 102. The support cover 113 also has several through holes 114.

[0039] A support sleeve 112 and a support cover 113 are provided outside the elastic mold sleeve 101 and the elastic mold cover 102. Multiple through holes 114 are provided on the support sleeve 112 and the support cover 113. While providing support and fixation, the pressure transfer of isostatic pressing is not affected, thus ensuring the forming of ceramic parts.

[0040] In addition, the top of the support sleeve 112 is provided with multiple positioning holes 115, and the bottom of the support cover 113 is provided with positioning pins 116 that cooperate with the positioning holes 115. The connection and installation can be completed simply by inserting the positioning pins 116 on the support cover 113 into the positioning holes 115 on the top of the support sleeve 112. They can be pulled out for disassembly, making it simple and convenient to use.

[0041] In summary, this invention, by providing flanges 104 on the elastic mold sleeve 101 and the elastic mold cover 102, with the flanges 104 located at the connection between the two, allows for a tighter connection between the elastic mold sleeve 101 and the elastic mold cover 102. Furthermore, sealing rings 105 are provided within the two flanges 104 to improve the sealing performance of the elastic mold. Additionally, a sealing member 103 is provided, with an upper sleeve plate 109 and a lower sleeve plate 110 clamping the two flanges 104, thereby ensuring sufficient sealing. The upper sleeve plate 109 and the lower sleeve plate 110 are connected by fastening bolts 111, which not only facilitates assembly and disassembly but also ensures a sufficiently tight clamping.

[0042] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of the present invention includes the claims being limited to these examples; within the framework of the present invention, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in the details for the sake of brevity.

[0043] This utility model is intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An elastic mold for isostatic pressing of ceramic parts, comprising an elastic mold sleeve (101), wherein the upper opening of the elastic mold sleeve (101) is further provided with a detachable elastic mold cover (102), characterized in that, The elastic mold also includes: A flange (104) is fixedly connected to the elastic mold sleeve (101) and the elastic mold cover (102). After the elastic mold cover (102) is put on, the two flanges (104) fit together. A sealing ring (105) is also fixedly connected to the flange (104) on the elastic mold sleeve (101). A sealing element (103) is fitted over the outside of the flange (104) to clamp the two flanges (104).

2. The elastic mold for isostatic pressing of ceramic parts according to claim 1, characterized in that, The upper opening of the elastic sleeve (101) is provided with a sleeve opening (106) that cooperates with the elastic sleeve cover (102), and a sealing ring (105) is also provided on the inner wall of the sleeve opening (106).

3. The elastic mold for isostatic pressing of ceramic parts according to claim 1, characterized in that, The sealing component (103) includes an upper sleeve plate (109) and a lower sleeve plate (110). The upper sleeve plate (109) and the lower sleeve plate (110) are the same in shape and size and are arranged opposite to each other. The upper sleeve plate (109) and the lower sleeve plate (110) are connected by fastening bolts (111).

4. The elastic mold for isostatic pressing of ceramic parts according to claim 3, characterized in that, The upper sleeve (109) and the lower sleeve (110) are circular ring structures, and the cross-sections of the upper sleeve (109) and the lower sleeve (110) are in the shape of an inverted "L".

5. The elastic mold for isostatic pressing of ceramic parts according to claim 1, characterized in that, The elastic sleeve (101) has a core mold (107) at its center. The core mold (107) is fixedly connected to the elastic sleeve (101). The upper end of the core mold (107) is provided with an insertion hole. The lower end of the elastic sleeve (101) is fixedly connected with an insertion rod (108). The insertion rod (108) is slidably connected in the insertion hole at the upper end of the core mold (107).

6. The elastic mold for isostatic pressing of ceramic parts according to claim 1, characterized in that, The elastic sleeve (101) is provided with a support sleeve (112) on the outside for supporting the elastic sleeve (101), and the support sleeve (112) is provided with several through holes (114).

7. The elastic mold for isostatic pressing of ceramic parts according to claim 6, characterized in that, The outer side of the elastic mold cover (102) is also provided with a support cover (113) for supporting the elastic mold cover (102), and the support cover (113) is also provided with several through holes (114).

8. The elastic mold for isostatic pressing of ceramic parts according to claim 7, characterized in that, The top of the support sleeve (112) is provided with a plurality of positioning holes (115), and the bottom of the support cover (113) is provided with a positioning post (116) that cooperates with the positioning holes (115).

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