Die for waste ceramic unfired slip casting
By designing molds for waste ceramic fire-free grouting molding, the problem of molds being easily damaged in traditional grouting molding processes is solved, and higher yield and production efficiency are achieved.
Patent Information
- Application Number
- CN202420839828.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-23
- Publication Date
- 2025-02-07
- Estimated Expiration
- 2034-04-23
AI Technical Summary
In the traditional grouting molding process, gypsum molds are prone to damage when opening the mold, resulting in a decrease in yield.
A mold for waste ceramic fire-free grouting molding is designed, including the base support and four molds. The mold can be detached and spliced, and the edge sealing ring groove and limit fitting structure are set to enhance the stability and disassembly of the mold. Convenience.
The product opening humidity is maintained through the edge sealing ring groove to avoid dryness and cracking; the limit fit structure improves the compact fit of the mold, prevents product deformation and mold disassembly and assembly damage, and significantly improves the yield rate.
Smart Images
Figure CN222431072U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of unfired grouting molding of waste ceramics, in particular to a mold used for unfired grouting molding of waste ceramics. Background Art
[0002] The grouting process can be divided into three stages: 1. After the slurry is injected into the mold, the capillary force of the gypsum mold absorbs the water in the slurry. The water in the slurry close to the mold wall is absorbed first, and the particles in the slurry begin to approach to form the initial thin mud layer. 2. The water is further absorbed, and its diffusion power is the pressure difference and concentration difference of the water. The thin mud layer gradually thickens, and the water inside the mud layer diffuses to the outside. When the thickness of the mud layer reaches the thickness of the injection part, a green blank is formed. 3. The gypsum mold continues to absorb water, the green blank begins to shrink, and the water on the surface begins to evaporate. After the green blank is dried to form a green blank with a certain strength, demolding is completed to complete the grouting process.
[0003] Although the advantages of slip injection molding include: (1) strong applicability, no need for complex mechanical equipment, only a simple plaster mold is needed for molding; (2) any complex shape and large thin-walled injection parts can be produced; (3) molding technology is easy to master and production cost is low; (4) the structure of the blank is uniform. However, in the traditional slip injection molding process, the plaster mold is generally made into two halves, and the two halves are closed and the slurry is injected into the closed halves to form the blank. When the mold is opened, it is always easy to damage the newly formed blank, which reduces the yield rate. Utility Model Content
[0004] In order to solve the above-mentioned deficiencies of the prior art, the purpose of the utility model is to provide a mold for unfired slip injection molding of waste ceramics to overcome the defects in the prior art.
[0005] In order to achieve the above-mentioned purpose, the utility model provides a mold for unfired grouting molding of waste ceramics, the mold comprising a base and four mold bodies, the four mold bodies are arranged around the base and are detachably spliced together, the side surfaces of two adjacent mold bodies are tightly fitted to form a mold for unfired grouting molding of waste ceramics, a mold cavity for forming a product is provided in the mold, edge sealing ring grooves are provided at the top openings of the four mold bodies, and the bottom surface of the edge sealing ring grooves is on the same horizontal plane as the opening of the mold cavity.
[0006] Through the above technical scheme, the edge sealing ring groove can form an edge sealing that is higher than the mold cavity, ensuring the integrity of the opening of the product circle. In the process of forming the product blank, the edge sealing covers the opening of the product blank, maintains the humidity of the opening of the product circle, and avoids the outer side of the opening of the product blank from drying out due to contact with the air, thereby increasing the yield rate.
[0007] As a further description of the mold for unfired grouting molding of waste ceramics described in the utility model, preferably, the left side surface of each mold body is provided with a first protrusion and a second protrusion arranged vertically, and the right side surface of each mold body is provided with a first groove and a second groove arranged vertically, so that the first protrusion and the second protrusion of each mold body form a limited fit with the first groove and the second groove of another adjacent mold body.
[0008] Through the above technical solution, the first protrusion and the second protrusion are set between the mold bodies and the limiting effect of the corresponding first groove and the second groove increases the close fit between the side surfaces of the mold bodies, avoids the problem of deformation of the product blank due to the movement of the four mold bodies in the circumferential direction, and thus increases the yield rate.
[0009] As a further description of the mold for unfired grouting molding of waste ceramics described in the utility model, preferably, the left side of each mold body includes a first splicing plane and a first curved surface that are tightly fitted with the adjacent mold body, and the right side of each mold body includes a second splicing plane and a second curved surface that are tightly fitted with the adjacent mold body, the first protrusion and the second protrusion are arranged at the intersection of the first splicing plane and the first curved surface, and the first groove and the second groove are arranged at the intersection of the second splicing plane and the second curved surface.
[0010] Through the above technical solution, each mold body is not only tightly fitted with other adjacent mold bodies through the splicing planes on the two sides, but also has arc surfaces to form gaps between the mold bodies, which facilitates the disassembly and assembly of the four mold bodies, avoiding the problem of destroying the integrity of the product blank due to improper disassembly of the four mold bodies, thereby increasing the yield rate.
[0011] As a further explanation of the mold for unfired grouting molding of waste ceramics described in the utility model, preferably, the front side of each mold body includes a mold cavity surface arranged according to the shape of the product and a first splicing surface spliced with the base; a third protrusion is arranged on the first splicing surface, and a third groove is arranged on each side of the base corresponding to the position of the third protrusion, so that when each mold body is spliced with the base, the third protrusion and the third groove form a limiting fit.
[0012] Through the above technical solution, a first joint surface that fits tightly with the base is set at the lower end of the mold body, and a third protrusion is set on the first joint surface to form a limiting fit with the third groove on the opposite base, thereby increasing the close fit between the four mold bodies and the base, limiting the movement of the base, avoiding the problem of destroying the integrity of the product blank due to the falling or rotation of the base, and thus increasing the yield rate.
[0013] As a further description of the mold for unfired slip injection molding of waste ceramics described in the utility model, preferably, each side surface of the first joint surface and the base is an arc surface.
[0014] Through the above technical solution, the first joint surface and each side surface of the base are set as arc-shaped surfaces, which can better adapt to the shape of the bottom of the product.
[0015] As a further description of the mold for unfired slip injection molding of waste ceramics described in the utility model, preferably, a boss is provided on the base.
[0016] Through the above technical solution, the boss arranged on the bottom bracket can form a base at the bottom of the product on the one hand, and can fix the product blank in the vertical direction on the other hand.
[0017] As a further description of the mold for unfired grouting molding of waste ceramics described in the utility model, preferably, the mold is made of the following raw materials in parts by weight: 90-100 parts of gypsum powder, 55-70 parts of water, 5-8 parts of porous filler, 0.5-1 part of sepiolite fiber, 0.3-0.5 part of water-based epoxy resin, and 0.1-0.3 part of tributyl phosphate.
[0018] In addition, the deformed and burnt defective waste products in the production process of the recycling ceramic factory and the discarded, damaged and obsolete old ceramics on the market can also be used as the main raw materials for the above-mentioned molds after crushing.
[0019] The beneficial effects of the utility model are as follows: 1) The edge sealing ring groove provided in the utility model can form an edge sealing higher than the mold cavity, ensuring the integrity of the opening of the product circle, and in the process of forming the product blank, the edge sealing covers the opening of the product blank, maintaining the humidity of the opening of the product circle, avoiding the phenomenon that the outer side of the opening of the product blank is cracked due to contact with the air, thereby increasing the yield rate. 2) The utility model sets the first protrusion and the second protrusion between the mold bodies and the corresponding first groove and the second groove to limit the function, thereby increasing the close fit between the sides of the mold body, avoiding the problem that the four mold bodies cause the product blank to deform due to the movement in the circumferential direction, thereby increasing the yield rate. 3) In the utility model, each mold body is not only tightly fitted with other adjacent mold bodies through the splicing planes of the two sides, but also has an arc surface to form a gap between the mold bodies, which facilitates the disassembly and assembly of the four mold bodies, avoiding the problem that the integrity of the product blank is destroyed due to improper disassembly of the four mold bodies, thereby increasing the yield rate. 4) The utility model arranges a first joint surface at the lower end of the mold body that fits tightly with the base, and arranges a third protrusion on the first joint surface to form a limiting fit with the third groove on the opposite base, thereby increasing the tight fit between the four mold bodies and the base, limiting the movement of the base, avoiding the problem of damaging the integrity of the product blank due to the falling or rotation of the base, and thus increasing the yield rate. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Figure 1 It is a schematic diagram of the structure of the mold of the utility model after splicing.
[0021] Figure 2 It is a schematic structural diagram of the mold of the utility model before splicing.
[0022] Figure 3 It is a main stereoscopic view of the mold body of the utility model.
[0023] Figure 4 It is a left-side stereogram of the mold body of the utility model.
[0024] The following are the descriptions of the reference numerals:
[0025] Base 1, third groove 11, boss 12, four mold bodies 2, mold cavity surface 21, edge ring groove 211, first splicing surface 22, third protrusion 221, first splicing plane 23, first protrusion 231, second protrusion 232, first arc surface 24, second splicing plane 25, first groove 251, second groove 252, second arc surface 26, mold cavity 3. DETAILED DESCRIPTION
[0026] In order to further understand the structure, features and other purposes of the present invention, the preferred embodiments are described in detail with reference to the accompanying drawings as follows. The embodiments described in the drawings are only used to illustrate the technical solution of the present invention and are not intended to limit the present invention.
[0027] like Figure 1 and Figure 2 As shown, a mold for unfired grouting molding of waste ceramics comprises a base 1 and four mold bodies 2, which are arranged around the base 1 and can be detachably spliced together. When the four mold bodies 2 are spliced together, the sides of two adjacent mold bodies 2 fit tightly together, and the base 1 and the four mold bodies 2 form a mold for unfired grouting molding of waste ceramics. Figure 1 The structure after the mold is spliced is shown, and inside the mold is a mold cavity 3 for forming the product. The top openings of the four mold bodies 2 are provided with edge-sealing grooves 211, and the bottom surface of the edge-sealing grooves 211 is at the same level as the opening of the mold cavity 3. The shape of the mold cavity 3 is the shape of the entire product. Slurry is injected into the mold cavity 3 to the level of the edge-sealing grooves 211. After a product blank of a certain thickness is formed, the slurry is poured out and the product blank has a certain strength. The edge seal higher than the mold cavity 3 is cut off along the edge-sealing grooves 211, and then the mold bodies 2 are disassembled in turn, and finally the entire product is removed from the base 1. Due to the provision of the edge-sealing grooves 211, an edge seal higher than the mold cavity 3 is formed, which ensures the integrity of the opening of the product. In the process of forming the product blank, the edge seal covers the opening of the product blank, maintains the humidity of the opening of the product, and avoids the phenomenon of cracking of the outer side of the product blank opening due to contact with the air, thereby increasing the yield rate.
[0028] like Figure 2 and Figure 3As shown, the left side of each mold body 2 is provided with a first protrusion 231 and a second protrusion 232 arranged in an upper and lower manner, and the right side of each mold body 2 is provided with a first groove 251 and a second groove 252 arranged in an upper and lower manner. When the mold body 2 is spliced with the base 1, the first protrusion 231 and the second protrusion 232 of each mold body 2 form a limiting fit with the first groove 251 and the second groove 252 of the mold body 2 on the adjacent side, and correspondingly, the first groove 251 and the second groove 252 of each mold body 2 form a limiting fit with the first protrusion 231 and the second protrusion 232 of the mold body 2 on the adjacent other side. Due to the limiting effect of the first protrusion 231 and the second protrusion 232 between the mold bodies 2 and the corresponding first groove 251 and the second groove 252, the close fit between the sides of the mold bodies 2 is increased, and the problem of deformation of the product blank due to the movement of the four mold bodies 2 in the circumferential direction is avoided, thereby increasing the yield rate.
[0029] like Figure 2-Figure 4 As shown, the left side of each mold body 2 includes a first splicing plane 23 and a first curved surface 24 that are tightly fitted with the adjacent mold body, and the right side of each mold body 2 includes a second splicing plane 25 and a second curved surface 26 that are tightly fitted with the adjacent mold body. The first protrusion 231 and the second protrusion 232 are arranged at the intersection of the first splicing plane 23 and the first curved surface 24, and the first groove 251 and the second groove 252 are arranged at the intersection of the second splicing plane 25 and the second curved surface 26. Each mold body 2 is not only tightly fitted with other adjacent mold bodies through the splicing planes on the two sides, but also has curved surfaces to form gaps between the mold bodies 2, which facilitates the disassembly and assembly of the four mold bodies 2, avoids the problem of damaging the integrity of the product blank due to improper disassembly of the four mold bodies 2, and thus increases the yield rate.
[0030] like Figure 3 and Figure 4As shown, the front of each mold body 2 includes a mold cavity surface 21 and a first splicing surface 22. A third protrusion 221 is provided on the first splicing surface 22. A third groove 11 is provided on each side of the base 1 at a position corresponding to the third protrusion 221. When each mold body 2 is spliced with the base 1, the third protrusion 221 and the third groove 11 form a limiting fit. The mold cavity surface 21 is shaped according to the shape and pattern of the product, and the mold cavity formed by splicing four mold cavity surfaces 21 together is the shape of the entire product. The base 1 is shaped according to the shape of the bottom of the product, and the first splicing surface 22 is shaped according to the surface spliced with the base 1. The lower end of the mold body 2 is provided with a first joint surface 22 that fits tightly with the base 1, and a third protrusion 221 is provided on the first joint surface 22 to form a limit fit with the third groove 11 on the opposite base 1, thereby increasing the close fit between the four mold bodies 2 and the base 1, limiting the movement of the base 1, and avoiding the problem of damaging the integrity of the product blank due to the falling or rotation of the base 1, thereby increasing the yield rate. Preferably, each side of the first joint surface 22 and the base 1 is an arc surface to adapt to the shape of the bottom of the product. The base 1 is also provided with a boss 12, which forms the base of the bottom of the product on the one hand, and fixes the product blank in the vertical direction on the other hand.
[0031] The mold for the unfired grouting molding of waste ceramics can be prepared by the following raw materials in parts by weight using the preparation method in the prior art: 90-100 parts of gypsum powder, 55-70 parts of water, 5-8 parts of porous filler, 0.5-1 part of sepiolite fiber, 0.3-0.5 parts of water-based epoxy resin, and 0.1-0.3 parts of tributyl phosphate. In addition, the deformed and burned defective waste products in the production process of the recycled ceramic factory and the discarded, damaged, and obsolete old ceramics on the market can also be used as the main raw materials of the above mold after crushing.
[0032] It should be stated that the above utility model content and specific implementation methods are intended to demonstrate the practical application of the technical solution provided by the utility model and should not be interpreted as limiting the scope of protection of the utility model. Those skilled in the art can make various modifications, equivalent substitutions or improvements within the spirit and principle of the utility model. The scope of protection of the utility model shall be subject to the attached claims.
Claims
1. A mold for unfired slip casting of waste ceramics, characterized in that: The mould comprises a base (1) and four mould bodies (2); the four mould bodies (2) are arranged around the base (1) and are detachably spliced together; the side surfaces of two adjacent mould bodies (2) are tightly fitted together to form a mould for slip injection moulding; a mould cavity (3) for forming a product is arranged in the mould; edge sealing ring grooves (211) are arranged at the top openings of the four mould bodies (2); the bottom surface of the edge sealing ring grooves (211) and the opening of the mould cavity (3) are in the same horizontal plane.
2. The mold for unfired slip casting of waste ceramics as claimed in claim 1, characterized in that: The left side surface of each mold body (2) is provided with a first protrusion (231) and a second protrusion (232) arranged in an up-and-down manner, and the right side surface of each mold body (2) is provided with a first groove (251) and a second groove (252) arranged in an up-and-down manner, so that the first protrusion (231) and the second protrusion (232) of each mold body (2) form a limiting fit with the first groove (251) and the second groove (252) of another adjacent mold body (2).
3. The mold for unfired slip casting of waste ceramics as claimed in claim 2, characterized in that: The left side surface of each mold body (2) includes a first joint plane (23) and a first curved surface (24) that are tightly fitted with the adjacent mold body, and the right side surface of each mold body (2) includes a second joint plane (25) and a second curved surface (26) that are tightly fitted with the adjacent mold body. The first protrusion (231) and the second protrusion (232) are arranged at the intersection of the first joint plane (23) and the first curved surface (24), and the first groove (251) and the second groove (252) are arranged at the intersection of the second joint plane (25) and the second curved surface (26).
4. The mold for unfired slip casting of waste ceramics according to claim 1, characterized in that: The front surface of each mold body (2) comprises a mold cavity surface (21) arranged according to the shape of the product and a first splicing surface (22) spliced with the base (1); a third protrusion (221) is arranged on the first splicing surface (22), and a third groove (11) is arranged on each side surface of the base (1) at a position corresponding to the third protrusion (221), so that when each mold body (2) is spliced with the base (1), the third protrusion (221) and the third groove (11) form a limiting fit.
5. The mold for unfired slip casting of waste ceramics as claimed in claim 4, characterized in that: The first joint surface (22) and each side surface of the base (1) are arc-shaped surfaces.
6. The mold for unfired slip casting of waste ceramics according to claim 1, characterized in that: A boss (12) is provided on the base (1).