Process for preparing freehand ceramics and purple sand artworks by extraction hollow method

Abstract

The invention discloses a process for preparing freehand ceramic and purple sand artworks by a dissociation hollow method, which comprises the following steps of: 1) forming a hole in a bottom plate, upwards inserting a conical stand column from the bottom, and enabling the head end of a continuous soft rope or similar filler to penetrate out of the hole in the bottom plate and to be reserved on the outer side of the bottom plate; (2) regularly winding and piling the soft rope or similar filler on the conical stand column to form a supporting framework, and alternately wrapping the supporting framework with pottery clay or purple grit clay in the winding process to form an internal hard supporting body; (3) after the surface of the hard supporting body is covered with an isolating layer, artistic clay blank modeling manufacturing is conducted; (4) when the surface of the clay blank is dried in the shade until the clay blank has the supporting strength, the conical stand columns are pulled out from the bottom of the bottom plate firstly, and then all the conical stand columns are continuously pulled out from the holes of the bottom plate through the reserved ropes or the ends of the similar filler, so that the artistic clay blank is shaped to form a hollow blank body; and (5) drying the hollow artistic modeling green body, and then firing and molding the hollow artistic modeling green body.

Description

Technical Field

[0001] The present invention relates to the field of ceramic and purple sand art production processes, and specifically refers to a preparation process for extracting the hollow part of freehand ceramic and purple sand artworks by the hollowing method. Background Art

[0002] In the creation of ceramic and purple sand artworks, the internal hollow design is crucial, which can prevent the works from cracking and being damaged due to uneven heating caused by the temperature difference between the inside and outside during high-temperature sintering in the kiln. However, the traditional hollow production methods have many defects:

[0003] 1) The throwing method, also known as the wheel method, is a traditional process that uses the centrifugal force of a rotating throwing machine and coordinates with both hands to control the clay to form a pottery blank. It can only make round utensils.

[0004] 2) The mold grouting method is to add a certain proportion of water to clay or purple sand clay to make a slurry, and pour it into an existing mold to make a clay blank. It cannot perform artistic shaping and cannot make large works.

[0005] 3) The tool scooping method: When the surface of the clay or purple sand clay is slightly dry and hard, use tools to carefully scoop out the soft clay that has not dried inside. This process is very likely to damage the works and is only applicable to small works.

[0006] 4) The clay slab splicing method: Splice and bond the pressed clay or purple sand clay slabs, and then perform shaping. However, if the operation is slightly careless, the works will be damaged, which greatly limits the exertion of artistic shaping.

[0007] 5) The clay strip coiling method: Knead the clay or purple sand clay into clay strips and build them layer by layer, which is often used for making large vat-like container products. The forms of the works made by this method are single, and the production process requires special care, making it difficult to perform freehand shaping.

[0008] 6) The soft object filling method: Use paper or other soft objects for internal filling and support, but it cannot form a hard and strong support, and some fillers are also difficult to take out. It is also limited to small works and cannot achieve freehand shaping of large works.

[0009] In summary, due to the lack of hard and strong support inside, the traditional production methods can only make some handicraft works and cannot perform the shaping and production of large freehand ceramic and purple sand artworks. Summary of the Invention

[0010] The technical problem to be solved by the present invention is to overcome the above-mentioned technical defects and provide a preparation process for extracting the hollow part of freehand ceramic and purple sand artworks by the hollowing method.

[0011] To solve the above technical problems, the technical solution provided by the present invention is a preparation process for extracting the hollow part of freehand ceramic and purple sand artworks by the hollowing method, including the following steps:

[0012] Step 1) Drill a hole in the bottom plate and insert a conical column from the bottom upwards. Thread the leading end of a continuous soft rope or a similar filler through the hole in the bottom plate and leave it protruding outside the bottom plate.

[0013] Step 2) Regularly wind and stack the soft rope or similar filler around the conical column to form a support framework, and intermittently wrap pottery clay or purple sand clay during the winding process to form an internal rigid support body.

[0014] Step 3) After covering the surface of the rigid support body with an isolation layer, perform the shaping of the artistic clay blank.

[0015] Step 4) When the surface of the clay blank has dried to a state with sufficient support strength, first withdraw the conical column from the bottom of the bottom plate, and then continuously withdraw the entire leading end of the reserved rope or similar filler from the hole in the bottom plate through the hole, so that the artistic clay blank shaping forms a hollow blank.

[0016] Step 5) After drying the hollow artistic shaping blank, fire it into a finished product.

[0017] Furthermore, the conical column is a conical column body that is thicker at the bottom and thinner at the top. The conical column is inserted upwards through the hole in the bottom plate, and the leading end of the continuous soft rope or similar filler passes through the hole in the bottom plate and is left protruding outside the bottom plate, and then is regularly wound and stacked along the conical column in a regular pattern.

[0018] The advantages of the present invention compared with the prior art are as follows:

[0019] 1) By setting a conical column, winding and stacking a soft rope or similar filler, and wrapping pottery clay or purple sand clay to form an internal rigid support body, the present invention provides a stable and strong support for the subsequent clay blank shaping, solves the problem of insufficient internal support in the traditional method, and makes the creation of large-scale freehand ceramic and purple sand art works a reality.

[0020] 2) Using a continuous soft rope or similar filler is more convenient during extraction and can ensure the integrity of the hollow blank. Detailed implementation mode

[0021] The following further elaborates in detail on a method for preparing a hollow extraction method for freehand ceramics and purple sand artworks according to the present invention in combination with embodiments.

[0022] Embodiment 1

[0023] A method for preparing a hollow extraction method for freehand ceramics and purple sand artworks, which comprises the following steps:

[0024] Step 1) Drill a hole in the bottom plate and insert a conical column from the bottom upwards. Thread the leading end of a continuous soft rope or a similar filler through the hole in the bottom plate and leave it protruding outside the bottom plate.

[0025] Step 2) Regularly wind and stack the soft rope or similar filler on the conical column to form a support framework, and intermittently wrap the pottery clay or purple sand clay during the winding process to form an internal rigid support body;

[0026] Step 3) After covering the surface of the rigid support body with an isolation layer, perform the production of the artistic clay blank shape;

[0027] Step 4) When the surface of the clay blank is air-dried until it has support strength, first extract the conical column from the bottom of the base plate, and then continuously extract all of it from the holes in the base plate through the end of the reserved rope or similar filler, so that the artistic clay blank shape forms a hollow blank body;

[0028] Step 5) After drying the hollow artistic shaped blank body, fire it into shape.

[0029] The above describes the present invention and its implementation manners, and this description is not restrictive. Generally speaking, if those skilled in the relevant art are inspired by it and, without departing from the purpose of the present invention creation, design a structural manner and an embodiment similar to the technical solution without creative efforts, they shall fall within the protection scope of the present invention.

Claims

1. A hollow extraction method for preparing freehand ceramics and purple sand artworks, characterized in that: The following steps are involved: Step 1) Open a hole in the bottom plate and insert a conical column from the bottom to the top, and pass the head end of a continuous soft rope or similar filler through the hole in the bottom plate and reserve it outside the bottom plate; Step 2) regularly winding and stacking the soft rope or similar filler on the conical column to form a support frame, and intermittently wrapping pottery clay or purple sand clay during the winding process to form an internal hard support body; Step 3) After the isolation layer is covered on the surface of the hard support body, artistic clay modeling is performed; Step 4) when the surface of the clay blank is dried in the shade to have a supporting strength, the conical columns are first pulled out from the bottom of the base plate, and then the reserved ropes or similar fillers are used to continuously pull them out from the holes of the base plate, so that the artistic clay blank is formed into a hollow body; Step 5) drying the hollow artistic modeling body and then firing it into shape.

2. The extraction hollowing method preparation process for freehand ceramics and purple sand artworks according to claim 1 is characterized in that: The conical column is a conical column with a thick bottom and a thin top. The conical column is inserted upward from the hole in the bottom plate. The head end of a continuous soft rope or a similar filler passes through the hole in the bottom plate and is reserved on the outside of the bottom plate, and then is regularly wound and stacked along the conical column.