Device for manufacturing Jianshui purple pottery plate and preventing deformation blank airing

Abstract

The utility model discloses a device for manufacturing a Jianshui purple pottery plate and preventing deformation blank airing. The device comprises a mold (1) for manufacturing the pottery plate, a compression roller (2) matched with the mold for use, a door-shaped frame (3) arranged above the mold in a crossing manner, a pressure head (4) mounted on the door-shaped frame, and a replaceable gypsum board (5) mounted on the bottom surface of a pressure plate, concave steps are arranged on the periphery or two opposite sides of the bottom surface of the plasterboard, the pressing plate and the plasterboard are clamped into a whole through groove-shaped buckles (6), the bottoms of the buckles are clamped on the steps, and the bottom surfaces of the buckles are flush with the bottom surface of the plasterboard; and the bottom surface area of the gypsum board is not smaller than the inner frame area of the rectangular frame of the mold. According to the green body airing device, wet green bodies of large Jianshui purple pottery plates can be aired after being prepared, and deformation and cracks of the green bodies can be prevented.

Description

Technical Field

[0001] This utility model belongs to the technical field of auxiliary tools for making Jianshui purple pottery slabs. Background Technology

[0002] The traditional craftsmanship of Jianshui purple pottery involves using clay unique to Jianshui County to prepare the clay, which is then shaped into various forms on a potter's wheel. After drying and maintaining moisture, the design is carved in both intaglio and relief, and finally fired after further drying. Because Jianshui purple pottery clay is fine and shrinks significantly, it is prone to deformation and cracking during the drying process. Furthermore, the intaglio and relief decoration process is lengthy, requiring frequent water spraying to maintain appropriate humidity. For larger clay bodies, this leads to noticeable uneven shrinkage and deformation, limiting its application in creating large-scale ceramic paintings. For a long time, there has been no effective method to address the deformation and cracking problems during the drying and decoration of Jianshui purple pottery slabs, making the production of large-scale Jianshui purple pottery paintings extremely difficult. Summary of the Invention

[0003] The purpose of this invention is to solve the problems existing in the prior art and to provide a device that can maintain a certain humidity of the wet blank after preparing a large-format ceramic slab to facilitate the creation of intaglio and relief decorations, and can evenly dry the blank after creation to prevent deformation.

[0004] The technical solution adopted by this utility model is as follows:

[0005] A device combining the production of Jianshui purple pottery slabs and the anti-deformation drying process includes a mold for making slabs, a pressure roller used in conjunction with the mold, a portal frame spanning above the mold, a pressure head installed on the portal frame, and a replaceable gypsum board installed on the bottom surface of the pressure plate. The mold includes a base plate and a rectangular frame placed on the base plate. A threaded sleeve with internal threads is provided in the middle of the top beam of the portal frame. The pressure head includes a vertical screw rod fitted in the screw sleeve and a pressure plate fixedly connected to the bottom end of the screw rod. The bottom surface of the gypsum board has recessed steps around its four sides or on opposite sides. The pressure plate and the gypsum board are clamped together by a groove-type buckle. The bottom of the buckle is engaged with the steps, and the bottom surface of the buckle is flush with the bottom surface of the gypsum board. The bottom surface area of ​​the gypsum board is not less than the inner frame area of ​​the rectangular frame of the mold.

[0006] Furthermore, a cover is fastened to the outside of the mold and the portal frame.

[0007] Furthermore, the rectangular frame of the mold base plate is made of stainless steel or wood.

[0008] Furthermore, the cover is a stainless steel cover.

[0009] Furthermore, the pressure roller includes a roller shaft and a roller body located on the middle section of the roller shaft, the length of which is not less than the width of the rectangular frame.

[0010] Furthermore, the pressure roller is a stainless steel roller.

[0011] This utility model has the following advantages:

[0012] This invention allows for the creation of wet Jianshui purple pottery slabs within a mold, maintaining a constant humidity level. A pressure head is lowered and pressed onto the surface of the wet slab. The plasterboard at the bottom of the pressure head initially uses plasterboard with a certain level of moisture, which adheres to the wet slab. The good moisture retention properties of the plasterboard help maintain a certain level of humidity, facilitating the creation of intaglio and relief decorations. After decoration is completed, a dry plasterboard is replaced, utilizing its good hygroscopic properties to slowly and evenly absorb moisture from the wet slab. A cover is then placed over the mold to maintain a stable humidity environment inside, ensuring more even drying and effectively preventing deformation or cracking of large-format wet slabs. This invention has a simple structure, is easy to use, and effectively solves the problems of deformation and cracking during the creation and drying process of intaglio and relief decorations on Jianshui purple pottery slabs. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the present invention in use;

[0014] Figure 2 yes Figure 1 Top view of the intermediate pressure head;

[0015] Figure 3 yes Figure 1 Bottom view of the intermediate pressure head;

[0016] Figure 4 This is a schematic diagram of the pressure roller. Detailed Implementation

[0017] like Figure 1 , Figure 2 , Figure 3 As shown, a device that combines the production of Jianshui purple pottery slabs and the anti-deformation drying process includes a mold 1 for making slabs, a pressure roller 2 used in conjunction with the mold, a portal frame 3 spanning above the mold, a pressure head 4 installed on the portal frame, and a replaceable gypsum board 5 installed on the bottom surface of the pressure plate.

[0018] The mold includes a base plate 1a and a rectangular frame 1b placed on the base plate. The base plate and the rectangular frame can be made of stainless steel or waterproof wood.

[0019] The top beam of the portal frame is provided with a threaded sleeve 3a in the middle. The pressure head includes a vertical screw 4a fitted in the threaded sleeve and a pressure plate 4b fixedly connected to the bottom end of the screw. Recessed steps are provided around the bottom surface of the gypsum board or on opposite sides. Grooved clips 6 are used to clamp the pressure plate and gypsum board together on their four sides or opposite sides. The bottom of the clips is engaged with the steps, keeping the bottom surface of the clips flush with the bottom surface of the gypsum board, so that the gypsum board can be flat and tightly attached to the wet blank after the pressure head descends. One to two clips are provided on each side of the pressure plate and gypsum board. In this embodiment, a grooved clip 6 is used on each of the four sides of the pressure plate and gypsum board to clamp them together. The bottom area of ​​the gypsum board is not less than the inner frame area of ​​the rectangular frame of the mold, that is, the bottom area of ​​the gypsum board is not less than the upper surface area of ​​the wet blank, ensuring that the wet blank can be completely covered by the gypsum board. The pressure plate can be made of stainless steel or waterproof wood.

[0020] Preferably, a cover 7 can be placed over the mold and gantry frame to maintain a more stable drying environment for the wet blank. The cover is preferably made of stainless steel.

[0021] The pressure roller 2 is as follows Figure 4 As shown, it includes a roller shaft 2a and a roller body 2b located on the middle section of the roller shaft. The length of the roller body is not less than the width of the rectangular frame 1b.

[0022] When using this utility model to produce Jianshui purple pottery slabs, such as Figure 1As shown, a rectangular frame 1b is placed on a base plate 1a. The prepared clay is placed inside the rectangular frame. Then, holding both ends of the roller shaft, the roller body is positioned on the rectangular frame, and the roller is rolled to flatten and compact the clay, filling the entire rectangular frame. A scraper is then used to smooth the clay along the top surface of the rectangular frame, resulting in a wet blank A. The wet blank is then kept still. A plasterboard is attached to the bottom of the pressure plate using clips. The screw 4a is rotated by the handle at the top of the screw, lowering the pressure head until the plasterboard 5 is tightly attached to the wet blank A. A cover 7 is then placed over the mold and the frame to maintain a stable humidity environment inside the cover. This invention fully utilizes the good moisture retention and absorption properties of plasterboard. The plasterboard can be completely dry or hardened but still retain a certain level of moisture. Typically, when the wet blank is first made, it needs to be dried slightly to set its shape, but a certain level of humidity must be maintained to allow for intaglio and relief decoration. Therefore, first install a dry plasterboard and press it onto the wet clay body to allow it to slowly lose some moisture and initially harden. Then, begin the intaglio and bas-relief decoration. Afterward, replace the plasterboard with one that has a certain level of moisture (the moisture level depends on the actual needs), or lightly spray water onto the surface of the previously moistened plasterboard. During the intaglio and bas-relief decoration process, a plasterboard with a certain level of moisture is needed to prevent the wet clay body from drying too quickly, facilitating a longer creation period (works with a large workload may require several days to complete). If the work is not finished in a day, press a slightly moistened plasterboard onto the wet clay body to maintain moisture, allowing you to continue the work the next day. After the work is completed, remove the clips and replace it with a completely dry plasterboard. This allows for slow and even absorption of moisture from the wet clay body, ensuring a uniform and slow drying process that prevents the terracotta panel from deforming or cracking. If necessary, replace the plasterboard with one that has absorbed too much moisture and install a dry plasterboard to accelerate the drying process.

[0023] Once the decorated wet clay body has dried to the required standard, remove the cover, raise the pressure head, remove the rectangular frame, and take off the dried clay body. It can then be sent to the next creative process to make ceramic slab works.

[0024] This invention effectively solves the long-standing problem of deformation and cracking during the creation and drying process of Jianshui purple pottery slabs, which are often decorated with intaglio and relief carving techniques. Its simple structure and ease of use make it particularly suitable for producing large-format pottery slabs.

Claims

1. A device that combines the functions of making Jianshui purple pottery slabs and preventing deformation during drying, characterized in that, The mold (1) for making ceramic slabs, the pressure roller (2) used in conjunction with the mold, the portal frame (3) spanning above the mold, the pressure head (4) installed on the portal frame, and the gypsum board (5) installed on the bottom surface of the pressure plate and replaceable; the mold includes a base plate (1a) and a rectangular frame (1b) placed on the base plate; a threaded sleeve (3a) with internal threads is provided in the middle of the top beam of the portal frame, and the pressure head includes a vertical screw (4a) fitted in the threaded sleeve and a pressure plate (4b) fixedly connected to the bottom end of the screw; the bottom surface of the gypsum board has recessed steps around its perimeter or on its opposite sides, and the pressure plate and the gypsum board are clamped together by a grooved buckle (6), the bottom of the buckle is clamped on the step, and the bottom surface of the buckle is flush with the bottom surface of the gypsum board; the bottom surface area of ​​the gypsum board is not less than the inner frame area of ​​the rectangular frame of the mold.

2. The device according to claim 1, which combines the functions of making Jianshui purple pottery slabs and preventing deformation during drying, is characterized in that... The mold and the gantry frame are covered with covers (7).

3. The device for both producing Jianshui purple pottery slabs and preventing deformation during drying, as described in claim 1 or 2, is characterized in that... The base plate (1a) and rectangular frame (1b) of the mold are made of stainless steel or wood.

4. A device for both producing Jianshui purple pottery slabs and preventing deformation during drying, as described in claim 1 or 2, characterized in that... The pressure roller (2) includes a roller shaft (2a) and a roller body (2b) located on the middle section of the roller shaft, the length of which is not less than the width of the rectangular frame (1b).

5. The device according to claim 4, which combines the functions of making Jianshui purple pottery slabs and preventing deformation during drying, is characterized in that... The pressure roller is a stainless steel roller.

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