Mold for producing ceramic container

Abstract

The utility model discloses a mold for producing a ceramic container, which comprises mold bodies arranged up and down as well as left and right, and when the four mold bodies are encircled, a closed cavity for accommodating slurry is formed; a composite material layer is arranged on the inner side of each mold body and is provided with a plurality of water filtering holes; a plurality of drainage grooves communicated with the water filtering holes are formed in the mold body; the water collecting cavity is formed in the mold body, and the plurality of drainage grooves are communicated with the water collecting cavity; a water collecting cavity is formed in the mold body, a water discharging pipe is arranged in the water collecting cavity, one end of the water discharging pipe extends into the mold body and is communicated with the water collecting cavity, and the other end of the water discharging pipe is connected with a negative pressure collecting device. The composite material layer in direct contact with the slurry is always in a high-water-absorption state, the requirements for the characteristics of large size and thick wall of the workpiece are met, and the method is suitable for grouting preparation of the large ceramic workpiece.

Description

Technical Field

[0001] The utility model belongs to the technical field of ceramic production equipment, and in particular relates to a mold for producing ceramic containers. Background Art

[0002] Slip injection molding refers to a molding method in which mud is poured into a water-absorbent mold (usually a plaster mold). The water absorption of the mold first absorbs the mud near the inner wall of the mold to solidify, and then the unformed mud in the mold is poured out to finally form a ceramic blank.

[0003] For example, a Chinese patent with application number CN201922405835.6 discloses a ceramic grouting mold, comprising at least two mold halves, each of which is provided with a molding cavity formed when the mold is closed, and a positioning and suction device is provided between each mold half to facilitate the closing of the mold halves. The positioning and suction device includes a positioning convex insert and a positioning concave insert, and any two adjacent mold halves are defined as a first mold half and a second mold half. The positioning convex insert and the positioning concave insert are respectively fixed to the first mold half and the second mold half.

[0004] With further research by the applicant, it was found that although the mold of this technical solution has a certain water absorption capacity, after absorbing a certain amount of water, its water absorption capacity decreases or even becomes saturated. It is more suitable for the preparation of small-volume workpieces. However, when preparing large workpieces such as wine jars, the mold needs to absorb a large amount of water and continuously to meet the requirements of the thick-walled characteristics of the workpiece. The existing grouting molding molds are no longer suitable for this scenario. Utility Model Content

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

[0006] A mold for producing a ceramic container, comprising: mold bodies arranged vertically and horizontally, wherein when four mold bodies are combined, a cavity for containing mud is formed;

[0007] A composite material layer is arranged inside each of the mold bodies, and the composite material layer has a plurality of water filtering holes;

[0008] The mold body is provided with a plurality of drainage grooves connected with the water filtering holes;

[0009] A water collection cavity is provided in the mold body, and the plurality of drainage grooves are all connected to the water collection cavity;

[0010] The drainage pipe has one end extending into the mold body and communicating with the water collecting cavity, and the other end connected with the negative pressure collecting device.

[0011] Furthermore, the mold bodies located at the lower and upper parts have bosses extending inwardly, and when the four mold bodies are surrounded, the mold bodies located at the left and right sides abut against the edges of the bosses.

[0012] Furthermore, the drainage grooves include drainage grooves 1 and 2 which are equidistant and staggered along the length direction of the mold body.

[0013] Furthermore, the lengths of the first drainage groove and the second drainage groove are not equal.

[0014] Furthermore, a mud pipe extends into the mold body located at the upper part.

[0015] Furthermore, the mold body is provided with a clamping groove for fixing the composite material layer.

[0016] Furthermore, the thickness of the composite material layer is not less than 5 cm.

[0017] Compared with the prior art, the utility model has the following beneficial effects:

[0018] A composite material layer is arranged on the inner side of the mold body, and the moisture in the mud is absorbed during grouting molding. The moisture absorbed by the composite material layer can enter the mold body through the internal water filtering holes and be discharged from the mold through the drainage grooves. Because the moisture in the composite material layer can be quickly discharged under the action of the external negative pressure collection device and the water collecting chamber, the composite material layer in direct contact with the mud is always in a highly water-absorbent state, which meets the requirements of large volume and thick wall characteristics of the workpiece, and is suitable for the grouting preparation of large ceramic workpieces. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the overall structure of an embodiment of a mold for producing a ceramic container according to the utility model;

[0020] Figure 2 It is a schematic diagram of the cross-sectional structure of the mold body and the composite material layer in the embodiment of the utility model;

[0021] Figure 3 This is a schematic diagram of the main structure of the mold body in the embodiment of the utility model;

[0022] The reference numerals in the drawings of the specification include:

[0023] The mold body 1, the cavity 10, the composite material layer 2, the water filter hole 20, the drainage groove 3, the first drainage groove 31, the second drainage groove 32, the water collecting cavity 33, the drainage pipe 4, the boss 5, the mud pipe 6, and the slot 7. DETAILED DESCRIPTION

[0024] In order to enable those skilled in the art to better understand the present invention, the technical solution of the present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0025] Among them, the drawings are only used for exemplary explanations, and they only show schematic diagrams rather than actual drawings, and cannot be understood as limitations on this patent; in order to better illustrate the embodiments of the utility model, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of the actual product; for those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted, and the same or similar reference numerals in the drawings of the embodiments of the utility model correspond to the same or similar parts; in the description of the utility model, it should be understood that if the terms "upper", "lower", "left", "right", "inner", "outer" and the like appear, the directions or positional relationships indicated are based on the directions or positional relationships shown in the drawings, which are only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, so the terms describing the positional relationship in the drawings are only used for exemplary explanations, and cannot be understood as limitations on this patent. For those of ordinary skill in the art, the specific meanings of the above terms can be understood according to specific circumstances.

[0026] like Figure 1 - Figure 3 As shown, a mold for producing a ceramic container of the utility model comprises a mold body 1 arranged vertically and horizontally. When four mold bodies 1 are surrounded, a cavity 10 for containing mud is formed;

[0027] A composite material layer 2 is arranged inside each mold body 1. The composite material layer 2 has a plurality of water filtering holes 20. The composite material layer 2 plays a role similar to a filter cloth. The filter cloth in this embodiment can be made of polyurethane or high-strength gypsum. To ensure water absorption, its thickness is not less than 5CM.

[0028] The mold body 1 is made of iron material with great strength, and ductile iron is selected in this embodiment.

[0029] A plurality of drainage grooves 3 connected to the water filtering holes 20 are provided on the mold body 1;

[0030] A water collecting cavity 33 is provided in the mold body 1, and a plurality of drainage grooves 3 are connected to the water collecting cavity 33;

[0031] The drain pipe 4 has one end extending into the mold body 1 and communicating with the water collecting chamber 33, and the other end connected to the negative pressure collecting device. Specifically, the drain pipe 4 is connected to the back of the mold body 1. When used in conjunction with the external negative pressure collecting device, on the one hand, it meets the demand for drainage, and on the other hand, under the action of negative pressure, it can speed up the discharge of water and accelerate the absorption and solidification speed of the mud near the inner wall of the mold.

[0032] A composite material layer 2 is arranged on the inner side of the mold body 1, and during grouting molding, the moisture in the mud is absorbed, wherein the moisture absorbed by the composite material layer 2 can enter the mold body 1 through the internal water filter hole 20, and be discharged from the mold through the drainage groove 3. Due to the action of the external negative pressure collection device and the water collection chamber 33, the moisture in the composite material layer 2 can be quickly discharged, so that the composite material layer 2 in direct contact with the mud is always in a highly absorbent state, meeting the requirements of large volume and thick wall characteristics of the workpiece, and is suitable for the grouting preparation of large ceramic workpieces.

[0033] The mold bodies 1 at the lower and upper parts have bosses 5 extending inwards. When the four mold bodies 1 are surrounded, the mold bodies 1 at the left and right sides abut against the edges of the bosses 5 .

[0034] There is no specific limitation on the shape of the inner side of each part of the mold body, which can be arc-shaped or flat. When it is flat, the cavity 10 formed by the four-part mold constitutes a rectangular / rectangular parallelepiped, so the workpiece prepared in this way, such as a wine jar, has a cubic shape.

[0035] The drainage grooves 3 include a first drainage groove 31 and a second drainage groove 32 which are equidistantly and staggeredly distributed along the length direction of the mold body 1 .

[0036] Specifically, the lengths of the first drainage groove 31 and the second drainage groove 32 are not equal. Such a distribution arrangement of the drainage grooves 3 makes the water absorption effect of the corresponding parts of the composite material layer 2 more uniform, and the uniformity of the wall thickness of the workpiece is guaranteed.

[0037] The present mold is used for grouting molding, and a mud pipe 6 can be inserted into the mold body. There is no specific restriction on the location of the mud pipe 6. The mud pipe 6 can be inserted from the side or top of the mold. The mud pipe 6 in the present embodiment is inserted from the upper mold body 1.

[0038] The mold body 1 is provided with a slot 7 for fixing the composite material layer 2, and a clamp matching the slot 7 is arranged on the side of the composite material layer 2 opposite to the mold body 1. The composite material layer 2 and the mold body 1 can also be connected by bolts.

[0039] The above connection method can use existing technology and is easy to implement. It does not belong to the protection scope of this application. Therefore, it at least has the beneficial effects brought by the technical solution of the above embodiment and will not be repeated here.

[0040] The composite material layer 2 and the mold body 1 are detachably connected, so that the mold body 1 can be easily replaced to meet the needs of preparing workpieces of different models. In addition, when replacing different composite material layers 2, different composite material layers 2 are not only different in size, but also in the number of water filter holes 20. Considering the difference in thickness of different workpieces, the drainage speed can be adjusted according to the distribution density and size of the water filter holes 20 to achieve the mud fixing speed and thickness.

[0041] The slurry is injected at high pressure through the mud pipe 6. After the required molding time is reached, the excess mud is discharged (poured) to form a wet embryo. The entire workpiece surface is then heated by heating means such as steam to evaporate the moisture on the embryo surface. Part of the moisture can be discharged through the above-mentioned water filter holes 20.

[0042] The above are only embodiments of the utility model. The common sense such as the known specific structures and characteristics in the scheme is not described in detail here. The ordinary technicians in the relevant field are aware of all the common technical knowledge in the technical field to which the utility model belongs before the application date or priority date, can obtain all the existing technologies in the field, and have the ability to apply the conventional experimental means before that date. The ordinary technicians in the relevant field can improve and implement the scheme in combination with their own abilities under the enlightenment given by this application. Some typical known structures or known methods should not become obstacles for the ordinary technicians in the relevant field to implement this application. It should be pointed out that for the technicians in this field, without departing from the structure of the utility model, several deformations and improvements can be made, which should also be regarded as the protection scope of the utility model, and these will not affect the effect of the implementation of the utility model and the practicality of the patent.

Claims

1. A mold for producing a ceramic container, characterized in that: include: The mold bodies are arranged vertically and horizontally, and when four of the mold bodies are closed together, a closed cavity for containing mud is formed; A composite material layer is arranged inside each of the mold bodies, and the composite material layer has a plurality of water filtering holes; The mold body is provided with a plurality of drainage grooves connected with the water filtering holes; A water collection cavity is provided in the mold body, and the plurality of drainage grooves are all connected to the water collection cavity; The drainage pipe has one end extending into the mold body and communicating with the water collecting cavity, and the other end connected with the negative pressure collecting device.

2. A mold for producing a ceramic container as claimed in claim 1, characterized in that: The mold bodies located at the lower and upper parts have bosses extending inwardly. When the four mold bodies are surrounded, the mold bodies located at the left and right sides abut against the edges of the bosses.

3. A mold for producing a ceramic container as claimed in claim 1 or 2, characterized in that: The drainage grooves include a first drainage groove and a second drainage groove which are equidistant and staggeredly distributed along the length direction of the mold body.

4. A mold for producing a ceramic container as claimed in claim 3, characterized in that: The lengths of the first drainage groove and the second drainage groove are not equal.

5. A mold for producing a ceramic container as claimed in claim 1, 2 or 4, characterized in that: A mud pipe extends into the mold body located at the upper part.

6. A mold for producing a ceramic container as claimed in claim 5, characterized in that: The mold body is provided with a clamping groove for fixing the composite material layer.

7. A mold for producing a ceramic container as claimed in claim 1, 2, 4 or 6, characterized in that: The thickness of the composite material layer is not less than 5CM.

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