Ceramic mold
By using a metal shell to encase the gypsum mold in the ceramic rolling molding die, the problem of insufficient wear resistance of the gypsum mold was solved, thereby improving the wear resistance and strength of the mold, shortening the drying time, and increasing production efficiency and yield.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-19
- Publication Date
- 2026-04-07
AI Technical Summary
The gypsum material in existing ceramic roll forming molds has insufficient wear resistance, making it prone to deformation or damage, which leads to increased production costs and low efficiency.
The plaster mold is encased in a metal shell and fixedly connected to the rolling equipment via connectors, which improves the wear resistance and strength of the mold and shortens the drying time of the clay blank by utilizing the thermally conductive metal shell.
It improves the wear resistance and strength of the mold, shortens the drying time of the ceramic blank, increases production efficiency and yield, and reduces production costs.
Smart Images

Figure CN224089262U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a kind of mould technical field, in particular to a kind of ceramic mould. BACKGROUND
[0002] Ceramic roll forming technology is a kind of forming method widely used in ceramic product production. It is by putting ceramic raw materials into the mold, using the rolling action of the rolling head, so that the raw materials are uniformly pressed in the mold to form. This forming method has the advantages of high production efficiency, high product size precision, good surface quality, etc., and is widely used in the production of ceramic cups, plates, bowls and other products.
[0003] However, the existing mold using roll forming method is made of plaster material, which has insufficient wear resistance, and the mold is prone to deformation or damage during the rolling process, resulting in an increase in paper cost. INVENTION CONTENTS
[0004] To overcome at least some of the defects and deficiencies in the prior art, the embodiments of the present application provide a ceramic mold to reduce the manufacturing cost.
[0005] Specifically, in one aspect, the ceramic mold provided by the embodiments of the present application comprises: a metal shell having a receiving cavity; a plaster mold body placed in the receiving cavity; a connecting piece arranged on the outer surface of the metal shell away from the receiving cavity, and the ceramic mold is fixedly connected with the rolling equipment through the connecting piece.
[0006] In one embodiment of the present application, the metal shell is a metal forming with heat conductivity.
[0007] In one embodiment of the present application, the metal shell comprises a cover body, a base and a side wall, the cover body and the base are oppositely arranged, and the two ends of the side wall are fixedly connected with the cover body and the base respectively, and the cover body, the base and the side wall are connected to form the receiving cavity.
[0008] In one embodiment of the present application, the cover body and the base are circular cover bodies, the diameter of the cover body is smaller than the diameter of the base, and the side wall is inclined and extends from the cover body to the outer surface of the base.
[0009] In one embodiment of the present application, the diameter of the cover body is 140 mm, and the diameter of the base is 130 mm
[0010] In one embodiment of the present application, the connecting piece comprises a clamping part, the clamping part is arranged on the outer surface of the side wall and is arranged close to the base, and the metal shell is clamped and connected with the rolling equipment through the clamping part.
[0011] In one embodiment of this utility model, the sidewall of the mold body is fitted with the inner sidewall of the metal shell, and / or the wall thickness of the sidewall is 5 mm.
[0012] As can be seen from the above, this utility model embodiment, by setting a metal shell to fully enclose the mold made of gypsum material, can isolate the friction between the gypsum material and the rolling equipment during rolling, thereby improving the wear resistance and strength of the mold. Secondly, because traditional gypsum molds have low strength, the sidewall thickness of the mold must be increased to ensure its strength, resulting in slow heating and prolonged drying time for porcelain clay blanks, which invisibly increases production costs. This application, by using a metal shell, makes the mold body strong, and the mold body placed in the accommodating cavity does not need to be thickened during casting. It also has good thermal conductivity, which can effectively shorten the drying time of the clay blanks and improve production efficiency. Attached Figure Description
[0013] Figure 1 An overall view of the ceramic mold provided in this embodiment of the utility model.
[0014] Figure 2 This is the final drawing of the ceramic mold.
[0015] Figure 3 for Figure 2 The partial cross-sectional view shown.
[0016] [Explanation of Labels in the Attached Image]
[0017] 1: Ceramic mold; 10: Metal shell; 11: Cover; 12: Base; 13: Side wall; 20: Mold body; 30: Connector; 31: Engaging part; 101: Receiving cavity. Detailed Implementation
[0018] The following specific examples illustrate the embodiments of the "ceramic mold" disclosed in this utility model. Those skilled in the art can understand the advantages and effects of this utility model from the content disclosed in this specification. This utility model can be implemented or applied through other different specific embodiments, and various details in this specification can also be modified and changed based on different viewpoints and applications without departing from the concept of this utility model. Furthermore, the accompanying drawings of this utility model are for simple illustrative purposes only and are not depictions of actual dimensions, as stated in advance. The following embodiments will further describe the relevant technical content of this utility model in detail, but the disclosed content is not intended to limit the scope of protection of this utility model.
[0019] like Figure 1 , Figure 2 and Figure 3As shown, this embodiment provides a ceramic mold 1, which may include, for example, a metal shell 10, a mold body 20, and a connector 30.
[0020] Specifically, a receiving cavity 101 is formed within the metal shell 1, which is used to receive the mold body 20. The connecting member 30 is disposed on the outer surface of the metal shell 10 away from the receiving cavity 101, and the ceramic mold 1 is fixedly connected to the rolling equipment through the connecting member 30. The metal shell serves as an external support and protective layer for the ceramic mold 1. The metal shell 1 is, for example, an outer shell made of metal or cast steel. The metal material can be, for example, iron, silver, and alloys. The cast steel material can be, for example, carbon cast steel, stainless steel, etc. Cast steel has high strength, high wear resistance, and good machinability, and plays an important role in ceramic mold manufacturing. Cast steel molds can withstand large loads and impacts and are suitable for manufacturing complex ceramic molds that require high precision. The mold body 20 can be, for example, a plaster mold formed by casting plaster into the accommodating cavity 101. The connector 30 is, for example, a connecting base. The rolling equipment is fitted onto the metal shell 10. Through the fixing connection of the connector 30, the rolling equipment can be completely fitted onto the rolling equipment, thereby ensuring that the product obtained after rolling is of high precision.
[0021] In the molding of porcelain clay blanks, a rolling process using a rolling device is required. Porcelain clay blanks are produced using plaster molds, but these molds have low strength. Existing technologies typically increase the mold wall thickness to ensure strength, resulting in slow heating and prolonged drying time, leading to low production efficiency. This embodiment addresses this by providing a metal shell 10 on the outside of the mold body. This ensures the strength of the ceramic mold 1. The mold body 20, formed by plaster casting within the cavity 101 of the metal shell 10, does not require thickening, effectively shortening the drying time of the ceramic clay blank and thus improving production efficiency. Furthermore, the metal shell 10 exhibits lower wear and tear compared to traditional plaster materials, extending the service life of the ceramic mold 1. Secondly, the mold body 20, formed by plaster casting within the metal shell 10, directly participates in the product molding process, and its shape and size typically match the final product's shape and size. After casting, the mold body 20 is tightly connected to the metal shell 10, possessing a certain bonding strength and resisting separation. Furthermore, gypsum, as a common mineral resource, has a wide range of raw material sources, is easy to obtain, and has relatively low manufacturing costs. At the same time, the manufacturing process of casting gypsum to form molds is relatively simple, mature, easy to master and operate, which helps improve production efficiency. Moreover, the inner surface of the mold 20 formed by gypsum casting is smooth, with good replicability in minute details, facilitating the demolding of ceramic blanks. In addition, by setting up connecting parts 30 and connecting them to the mold base of the external rolling equipment, the ceramic mold 1 is ensured to be stably and accurately positioned during the rolling process. This stable connection method reduces the shaking and displacement of the ceramic mold 1 during the rolling process, thereby improving the accuracy and efficiency of rolling molding. It also ensures that the ceramic mold 1 is subjected to uniform force during the rolling process, thus reducing deformation and cracks in the mold 20 during the forming process, thereby improving product quality and yield.
[0022] Furthermore, the metal shell 10 is a thermally conductive metal mold. By using a metal shell 10 made of a thermally conductive metal material, the side walls of the mold 20 formed by plaster casting inside the accommodating cavity 101 do not need to be thickened, which can effectively shorten the drying time of the clay blank and improve the production efficiency of ceramic products.
[0023] Furthermore, such as Figure 3As shown, the metal casing 10 includes a cover 11, a base 12, and a side wall 13. The cover 11 and the base 12 are disposed opposite to each other, and the two ends of the side wall 13 are fixedly connected to the cover 11 and the base 12, respectively. The cover 11, the base 12, and the side wall 13 are connected to form the receiving cavity 101. The cover 11 may be, for example, the top of the metal casing 10, the base 12 may be, for example, the bottom of the metal casing 10, and the side wall 13 may be, for example, the middle part of the metal casing 10. In the actual production process, since plaster needs to be poured into the receiving cavity 101, the metal casing 10 needs to be flipped over, that is, the cover 11 is flipped to the bottom position of the metal casing, so as to facilitate the pouring.
[0024] Furthermore, the cover 11 and the base 12 are circular, with the diameter of the cover 11 being smaller than the diameter of the base 12. The sidewall 13 extends from the cover 11 toward the outer surface of the base 12. That is, the metal shell 10 can be, for example, a cylindrical shell. The shape of the cylindrical structure can be set according to actual conditions, such as circular, elliptical, or rectangular. In this embodiment, the cylindrical structure is circular, meaning its cross-section is circular at any position. The circular cylindrical metal shell 10 design allows the ceramic material to be subjected to continuous and uniform pressure during the rolling process, thereby achieving continuous production, improving production efficiency, reducing downtime, and making the production of ceramic products more efficient. Secondly, by setting the diameters of the cover 11 and the base 12 to be different, the sidewall 13 can be inclined, and the inner surface of the sidewall 13 can be tapered. This ensures that when the plaster material forms the mold 20, the mold 20 fits snugly against the inner surface of the sidewall 13, and also ensures the accuracy of the mold 20 after casting. By setting the sidewall 13 to an inclined state, the flow rate of the molten plaster in the accommodating cavity 101 can be controlled, ensuring that the molten plaster can quickly fill the mold cavity in a predetermined direction, avoiding dead corners and eddies. This design helps reduce the resistance and pressure loss of the molten plaster during the flow process, thereby maintaining the continuity and stability of the plaster. Furthermore, the tapered design allows the ceramic product formed by rolling with a rolling device to more easily slide off the inner wall of the accommodating cavity 101 of the ceramic mold 1 when the mold is opened, reducing product damage or mold wear caused by difficult demolding. The tapered design also reduces stress concentration on the mold during the rolling process, thereby reducing the risk of mold wear and damage, which helps extend the mold's service life and reduce production costs.
[0025] Specifically, the diameter of the cover 11 is 140 mm, and the diameter of the base 12 is 130 mm.
[0026] Furthermore, such asFigure 2 As shown, the connector 30 includes a locking part 31, which is disposed on the outer surface of the side wall 13 and close to the base 12. The metal housing 10 is locked to the rolling equipment via the locking part 31. The locking part is, for example, a component with a stepped structure. The rolling equipment may be provided with a locking part corresponding to the locking part. Through the connection between the locking part and the locking part, the rolling equipment and the ceramic mold 1 can be further fixed, thereby ensuring the accuracy of the product after rolling.
[0027] Furthermore, the sidewall of the mold body 20 is fitted to the inner sidewall of the metal shell 10, and / or the wall thickness of the sidewall 13 is 5 mm.
[0028] Furthermore, an opening 4 is provided at the center of the bottom surface of the shell 1. The size of the opening 4 is smaller than the size of the bottom surface of the shell 1. The number of openings 4 can be set according to the actual situation, such as one, two, or more. Specifically, in this embodiment, the number of openings 4 is one. After the plaster liner 2 is cast and formed inside the mold, it is often tightly bonded to the inner wall of the mold shell 1. The design of the circular opening 4 allows the user to directly contact the plaster in the liner, making it easier to remove the plaster model from the mold. This improves disassembly efficiency, reduces the labor intensity of operators, and facilitates the disassembly of the internally cast plaster model.
[0029] The above-disclosed content is only a preferred and feasible embodiment of the present utility model, and is not intended to limit the scope of protection of the claims of the present utility model. Therefore, all equivalent technical changes made based on the content of the present utility model specification and drawings are included in the scope of protection of the claims of the present utility model.
Claims
1. A ceramic mold, characterized in that, include: Metal casing with a receiving cavity; A plaster mold is placed inside the accommodating cavity; A connector is disposed on the outer surface of the metal housing away from the accommodating cavity, and the ceramic mold is fixedly connected to the rolling equipment through the connector.
2. The ceramic mold according to claim 1, characterized in that, The metal casing is a thermally conductive metal form.
3. The ceramic mold according to claim 1, characterized in that, The metal housing includes a cover, a base, and a sidewall. The cover and the base are arranged opposite to each other, and the two ends of the sidewall are fixedly connected to the cover and the base, respectively. The cover, the base, and the sidewall are connected to form the accommodating cavity.
4. The ceramic mold according to claim 3, characterized in that, The cover and the base are both circular, with the diameter of the cover being smaller than the diameter of the base. The sidewalls slope and extend from the cover toward the outer surface of the base.
5. The ceramic mold according to claim 4, characterized in that, The diameter of the cover is 140 mm, and the diameter of the base is 130 mm.
6. The ceramic mold according to claim 3, characterized in that, The connector includes a locking part, which is disposed on the outer surface of the side wall and close to the base. The metal housing is engaged with the rolling equipment through the locking part.
7. The ceramic mold according to any one of claims 1-6, characterized in that, The sidewall of the mold body is fitted to the inner sidewall of the metal shell, and / or the wall thickness of the sidewall is 5 mm.