JPH07708U - Stamp for raw green body and wood drawing jig - Google Patents

Abstract

(57) [Summary] [Structure] The green body stamp 1 comprises a stamp main body 3 that is brought into contact with the green body green body 2, and a stamp arm 4 that supports the stamp main body 3. In this stamp 1 for green body, the stamp body 3 is supported by the stamp arm 4 via a spring 5. [Effects] The stamp body and the wood-pulling piece are not excessively pressed against the green body compact, and the date, lot number, etc. can be clearly attached to the green body compact, or the wood-base compacting process can be performed. Can be efficiently performed.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a stamp for a green body molding and a wood-pulling jig, which are used in the process of manufacturing ceramics. More specifically, the present invention relates to a stamp for a green body molded body and a wood-pulling jig which are suitable when a date stamp is pressed on a molded body that has been demolded from a pressure casting mold, or when this molded body is subjected to wood finishing treatment.

[0002]

[Prior art]

 In the pressure casting method, the slurry is pressurized and injected into the casting space surrounded by the water-absorbent mold, and the drainage channel inside the mold is depressurized to remove the water absorbed by the mold from the mold. Discharge. After a sufficient amount of the base material has adhered to the inner surface of the molding die (that is, has inked), the mold is removed. To perform this demolding, air pressure is applied to the drainage channel of the mold so that the water inside the mold oozes out to the inner surface of the mold, and a thin water film is formed on the carcass (green body) and the mold. Form at the interface with.

When the lower mold is separated and the pallet is arranged slightly below the upper mold and air pressure is applied to the upper mold to form a water film on the inner surface of the mold, the molded body is separated from the upper mold and the pallet is separated. Fall on top.

The green body compacts placed on the pallet are subjected to finishing treatment such as deburring, boring, wiping the surface, and fine adjustment of the shape, if necessary, and then sent to the drying step. .

[0005] When stamping a green body molded product that has been demolded from a molding die with a date or lot number, a stamp is pressed. In the conventional stamp, the stamp body is fixedly attached to the tip of the stamp arm. This stamp is pressed against the green body compact by a work robot.

When the green body has a tank shape, a crossing corner between the inner bottom surface and the inner wall surface is pressed by a wood-drawing jig. By pressing the intersecting corners of the green body with this wood-pulling jig, it is possible to prevent the green body from cracking during the drying process. The reason why pressing with such a wood pulling jig (wood pulling treatment) prevents cracks during drying is that it remains near the intersection of the bottom surface and the inner wall surface of the green body compact. It is presumed that this is because the stress generated is eliminated by the wood-pulling process.

In the conventional wood-pulling jig, a wood-pulling piece is fixedly attached to the tip of the wood-pulling arm. This wood-pulling jig is pressed against the green body compact by a work robot.

[0008]

[Problems to be solved by the device]

 The dimensional variation of the green body molded body is usually quite large. Therefore, a stamp or a wood-pulling jig was sometimes pressed against the green body compact excessively.

[0009]

[Means for Solving the Problems]

 In the stamp for green body molding of the present invention, the stamp body is supported by the stamp arm via a spring.

The wood-pulling jig of the present invention comprises a wood-pulling arm supported by a wood-pulling arm via a spring.

[0011]

[Action]

 In the stamp for green compact of the present invention, a spring is interposed between the stamp body and the stamp arm. Further, in the wood-pulling jig of the present invention, a spring is interposed between the wood-pulling piece and the wood-pulling arm. Therefore, the work robot is prevented from pressing the stamp or the wood-pulling jig against the green body compact excessively.

[0012]

【Example】

 Hereinafter, embodiments will be described with reference to the drawings. FIG. 1 is a side view of a green body stamp according to an embodiment, and FIG. 2 is a side view showing a usage example.

The green body stamp 1 is provided with a stamp main body 3 that is brought into contact with the green body green body 2 and a stamp arm 4 that supports the stamp main body 3. In this stamp 1 for green body, the stamp body 3 is supported by the stamp arm 4 via a spring 5.

The stamp 1 is rotatably moved as shown by an arrow A in FIG. 2 so that the tip end surface of the stamp main body 3 is pressed against the surface of the green body compact 2. The stamp body 3 is provided on its tip surface with a character-shaped convex portion for imprinting a date stamp or a manufacturing lot number on the green body compact.

In this stamp 1, since the spring 5 is interposed between the stamp body 3 and the stamp arm 4, the stamp body 3 will not move even if the distance between the stamp arm 4 and the green body compact 2 is too close. The green body molding 2 will not be pressed excessively strongly.

FIG. 3 is a side view showing a wood-pulling jig according to an embodiment of the present invention. This wood pulling jig 6 is for wood-cutting a raw green body 7 of a low tank. The raw green body 7 of a low tank shown in FIG. Showing.

The wood-pulling jig 6 includes a wood-pulling piece 8 that comes into contact with the green body molding 7, and a wood-pulling arm 9 that supports the wood-pulling comma 8. The tree-pulling piece 8 is supported by the tree-pulling arm 9 via a spring 10.

Also in this wood-pulling jig 6, since the wood-pulling pieces 8 are supported by the wood-pulling arms 9 via the springs 10, the distance between the wood-pulling arm 9 and the bottom surface of the green body molding 7 is increased. Even if they are too close to each other, the wood pulling piece 8 will not be excessively strongly pressed against the bottom surface 7a of the green body molded body 7.

The green body compact 7 is photographed from above with a CCD camera or the like, and the shape and position of the green body compact 7 (particularly the position of the intersection corner between the bottom surface 7a and the inner wall surface 7b of the green body compact 7) are measured. ) Is checked to control the robot to move the wood-pulling arm 9.

[0020]

[Effect of device]

 As described above, according to the stamp for raw green body and the wood-pulling jig of the present invention, the stamp body and the wood-drawing piece are not excessively pressed against the green compact, and the date, lot number, etc. It is possible to clearly attach the green body to the green body and efficiently perform the wood-pulling treatment of the green body.

[Brief description of drawings]

FIG. 1 is a side view of a green body stamp according to an embodiment.

FIG. 2 is a side view showing a usage example of a green body stamp.

FIG. 3 is a side view of the wood-pulling jig according to the embodiment.

FIG. 4 is a plan view of a green body compact of a low tank.

[Explanation of symbols]

 1 Stamp for green body molded body 2,7 Raw body molded body 3 Stamp body 4 Stamp arm 5,10 Spring 6 Wood pulling jig 8 Wood pulling piece 9 Wood pulling arm

Claims (2)

[Scope of utility model registration request] 1. A stamp for a green body formed body comprising a stamp main body which is brought into contact with the green body formed body and a stamp arm which supports the stamp main body, wherein the stamp main body is provided via a spring. A stamp for a green body, which is characterized by being supported by. 2. A wood pulling piece that abuts on the green body,
A wood-pulling jig comprising a wood-pulling arm for supporting the wood-pulling piece, wherein the wood-pulling piece is supported by the wood-pulling arm via a spring.