Ceramic plate wet forming die

Abstract

The utility model discloses a wet forming die for a ceramic plate, and relates to the technical field of ceramics. According to the technical scheme, the device comprises a mold frame with an opening in the upper portion, and a plurality of filter holes are formed in a bottom plate of the mold frame; a movable plate is placed on the bottom plate, filter holes are formed in the movable plate, filter paper is placed on the movable plate, the diameter of the filter holes of the bottom plate is larger than that of the filter holes of the movable plate, and the diameter of the filter holes of the movable plate is larger than that of the filter holes of the filter paper; a lining is placed on the filter paper and attached to the inner wall of the mold frame, and a vertically-through pouring cavity is formed in the middle of the lining. And the top of the mold frame is detachably and fixedly connected with a cover plate. The device is easy to disassemble and clean and convenient to operate; and the shape and the size of the lining pouring cavity can be changed, so that various ceramic blanks with different specifications can be obtained through pouring, the whole ceramic plate wet forming mold does not need to be replaced, and the manufacturing cost of the ceramic plate wet forming mold is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of ceramics, in particular to a wet forming die for a ceramic plate. Background Art

[0002] According to the fluidity of the ceramic blank, the ceramic forming methods can be divided into: dry forming, plastic forming, and wet forming. Compared with dry forming, wet forming can effectively control defects such as powder agglomeration and holes in the blank, and improve the reliability of ceramics. Ceramic wet forming mainly includes: slip casting, filter press molding, tape casting, injection molding, direct solidification molding, and spontaneous solidification molding. Except for tape casting, wet forming requires a forming mold to implement the forming process. At present, wet forming molds are difficult to disassemble and clean; and when forming ceramics of different specifications, they need to be replaced with corresponding specifications of forming molds, resulting in a high manufacturing cost of the forming mold. Therefore, it is necessary to redesign the wet forming mold of ceramic plates to improve the above problems. Utility Model Content

[0003] The technical problem to be solved by the utility model is: to overcome the shortcomings of the prior art and provide a ceramic plate wet forming mold that is easy to disassemble and clean and easy to operate; and a variety of ceramic blanks of different specifications can be cast by changing the shape and size of the inner lining casting cavity, without replacing the entire ceramic plate wet forming mold, thereby reducing the production cost of the ceramic plate wet forming mold.

[0004] The technical solution of the utility model is:

[0005] A wet forming mold for ceramic plates comprises a mold frame with an open top, a bottom plate of the mold frame being provided with a plurality of filter holes; a movable plate is placed on the bottom plate, filter holes are arranged on the movable plate, filter paper is placed on the movable plate, the filter holes of the bottom plate have a larger aperture than the filter holes of the movable plate, and the filter holes of the movable plate have a larger aperture than the filter holes of the filter paper; an inner lining is placed on the filter paper, the inner lining fits the inner wall of the mold frame and a casting cavity is arranged in the middle of the inner lining running through from top to bottom; a cover plate is detachably fixedly connected to the top of the mold frame.

[0006] Preferably, a circle of grooves is provided at the bottom of the liner, and a sealing ring is provided in the groove.

[0007] Preferably, a circle of grooves is provided on the upper surface of the mold frame, and a sealing ring is provided in the groove.

[0008] Preferably, a circle of grooves is provided on the side of the movable plate, and a sealing ring is provided in the groove.

[0009] Preferably, a non-penetrating threaded hole is provided on the upper surface of the cover plate, and a knob plunger is threadedly connected inside the threaded hole.

[0010] Preferably, a plurality of non-penetrating threaded holes are provided on the upper surface of the lining, and knob plungers are threadedly connected to the threaded holes.

[0011] Preferably, the cover plate is fixedly connected to the mold frame by bolts.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] 1. The wet forming mold for ceramic plates of the utility model is composed of multiple parts, and the parts are not connected or are detachably fixedly connected, so that the wet forming mold for ceramic plates is easy to disassemble and clean, and is easy to operate. At the same time, the utility model places an inner liner in the mold frame, and can cast ceramic blanks of various specifications by changing the shape and size of the inner liner casting cavity, without replacing the entire wet forming mold for ceramic plates, thereby reducing the production cost of the wet forming mold for ceramic plates.

[0014] 2. The wet forming mold for ceramic plates of the utility model has a knob plunger threadedly connected to the cover plate and the inner liner, which can quickly separate the mold and the ceramic body after forming, thereby helping to improve the integrity of the ceramic body and the operating efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a cross-sectional view of a wet forming mold for a ceramic plate of the utility model.

[0016] Figure 2 It is a structural schematic diagram of the mold frame of the utility model.

[0017] Figure 3 It is a cross-sectional view of the liner of the utility model.

[0018] Figure 4 It is a top view of the liner of the utility model.

[0019] Figure 5 It is a side view of the movable plate of the utility model.

[0020] In the figure, 1, mold frame; 2, filter hole; 3, movable plate; 4, filter paper; 5, lining; 501, casting cavity; 6, cover plate; 7, groove; 8, threaded hole. DETAILED DESCRIPTION

[0021] In order to enable those skilled in the art to better understand the technical solution of the present invention, the technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention.

[0022] Example 1

[0023] like Figure 1 As shown, this embodiment provides a ceramic plate wet forming mold, including Figure 2 The mold frame 1 shown has an open top, and a plurality of filter holes 2 are arranged on the bottom plate of the mold frame 1; a movable plate 3 is placed on the bottom plate, and the side of the movable plate 3 is attached to the inner wall of the mold frame 1, and filter holes 2 are arranged on the movable plate 3, and filter paper 4 is placed on the movable plate 3, and the aperture of the filter hole 2 of the bottom plate is larger than the aperture of the filter hole 2 of the movable plate 3, and the aperture of the filter hole 2 of the movable plate 3 is larger than the aperture of the filter hole 2 of the filter paper 4, thereby forming a three-level filtration for the ceramic slurry. During the secondary filtration, since the aperture of the filter hole of the filter paper 4 is fixed, if the filter hole 2 of the bottom plate is very small, some of the filter holes 2 on the bottom plate will be blocked during the curing process of the ceramic slurry, affecting the gel curing of the local ceramic slurry, and cleaning is also more difficult; and if the filter hole 2 of the bottom plate is large, it is easy to cause the ceramic slurry to solidify at the filter hole 2 of the bottom plate, affecting the shape of the blank. In this embodiment, a movable plate 3 with filter holes 2 is added between the bottom plate and the filter paper 4, so that the three-stage filtration is formed together with the filter paper 4 and the bottom plate, which can effectively improve the above problems existing in the two-stage filtration. An inner lining 5 is placed on the filter paper 4, and the inner lining 5 is attached to the inner wall of the mold frame 1, and Figure 1 , 3 As shown, a casting cavity 501 is provided in the middle of the inner liner 5 and runs through from top to bottom. The movable plate 3 is a circular plate, and the inner liner 5 is a cylinder with a casting cavity 501 provided in the middle. The casting cavity 501 can be designed as a cylindrical or rectangular cavity (such as Figure 4 In addition, a cover plate 6 is fixedly connected to the top of the mold frame 1 by bolts.

[0024] Working principle:

[0025] Place the mold frame 1 on a flat operating table, place the movable plate 3 inside the mold frame 1, and after the movable plate 3 is laid flat, place the filter paper 4 on the movable plate 3, and then place the liner 5 on the filter paper 4. Then pour the ceramic slurry into the pouring cavity 501 of the liner 5, cover it with the cover plate 6, and fix it on the mold frame 1 with bolts, and the ceramic slurry begins to gel and solidify. After the ceramic slurry gels and solidifies for a period of time, remove the bolts, open the cover plate 6, separate the ceramic body solidified by gel from the liner 5, and complete demoulding. After demoulding, the ceramic body is dried and sintered to obtain a ceramic plate.

[0026] The ceramic plate wet forming mold of the present embodiment, on the one hand, can be easily disassembled and cleaned through a multi-component split design; on the other hand, by placing an inner liner 5 in the mold frame 1, a variety of ceramic blanks of different specifications can be finally cast by changing the shape and size of the pouring cavity 501 of the inner liner 5, without replacing the entire ceramic plate wet forming mold, thereby reducing the production cost of the ceramic plate wet forming mold.

[0027] Example 2

[0028] On the basis of Example 1, Figure 3As shown, the bottom of the liner 5 is provided with a circle of grooves 7, and a sealing ring is provided in the groove 7; Figure 2 As shown, the upper surface of the mold frame 1 is provided with a circle of grooves 7, and a sealing ring is provided in the groove 7; Figure 5 As shown, a circle of grooves 7 are arranged on the side of the movable plate 3 , and a sealing ring is arranged in the groove 7 .

[0029] In this embodiment, sealing rings are arranged on the liner 5, the mold frame 1 and the movable plate 3, so that the sealing property of the whole wet forming mold of the ceramic plate can be improved to prevent leakage during the ceramic slurry forming process.

[0030] Example 3

[0031] On the basis of Example 1, Figure 1 As shown, the upper surface of the cover plate 6 is provided with a non-penetrating threaded hole 8, and the threaded hole 8 is internally threadedly connected with a knob plunger; Figure 1 , 3 As shown in Figure 4, two non-penetrating threaded holes 8 are arranged on the upper surface of the liner 5, and the threaded holes 8 are internally threadedly connected with knob plungers.

[0032] After the ceramic slurry gel solidifies for a period of time, a knob plunger is threadedly connected to the threaded hole 8 on the cover plate 6, the bolts are removed, and the cover plate 6 is lifted up by the knob plunger; then, a knob plunger is threadedly connected to the threaded hole 8 on the upper surface of the liner 5, and the liner 5 is lifted up by the knob plunger, thereby achieving rapid separation of the ceramic blank and the liner 5, thereby completing demolding, which is easy to operate.

Claims

1. Ceramic plate wet forming mold, characterized in that: The invention comprises a mold frame (1) with an open top, wherein a plurality of filter holes (2) are arranged on the bottom plate of the mold frame (1); a movable plate (3) is placed on the bottom plate, filter holes (2) are arranged on the movable plate (3), filter paper (4) is placed on the movable plate (3), the filter holes (2) of the bottom plate have a hole diameter greater than the filter holes (2) of the movable plate (3), and the filter holes (2) of the movable plate (3) have a hole diameter greater than the filter holes (2) of the filter paper (4); an inner lining (5) is placed on the filter paper (4), the inner lining (5) is attached to the inner wall of the mold frame (1), and a casting cavity (501) penetrating from top to bottom is arranged in the middle of the inner lining (5); and a cover plate (6) is detachably fixedly connected to the top of the mold frame (1).

2. The wet forming mold for ceramic plates according to claim 1, characterized in that: The bottom of the liner (5) is provided with a circle of grooves (7), and a sealing ring is provided in the grooves (7).

3. The wet forming mold for ceramic plates according to claim 1, characterized in that: The upper surface of the mold frame (1) is provided with a circle of grooves (7), and a sealing ring is provided in the grooves (7).

4. The wet forming mold for ceramic plates according to claim 1, characterized in that: A circle of grooves (7) are arranged on the side of the movable plate (3), and a sealing ring is arranged in the groove (7).

5. The wet forming mold for ceramic plates according to claim 1, characterized in that: The upper surface of the cover plate (6) is provided with a non-penetrating threaded hole (8), and the threaded hole (8) is internally threadedly connected to a knob plunger.

6. The wet forming mold for ceramic plates according to claim 1, characterized in that: The upper surface of the liner (5) is provided with a plurality of non-penetrating threaded holes (8), and the threaded holes (8) are internally threadedly connected with knob plungers.

7. The wet forming mold for ceramic plates according to claim 1, characterized in that: The cover plate (6) is fixedly connected to the mold frame (1) by means of bolts.

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