JP2575978Y2 - Deburring device for green body - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for deburring a green body, which is used in a process of manufacturing ceramics.

[0002]

2. Description of the Related Art When molding a green body for manufacturing ceramics, burrs may be generated on the formed body.
In particular, in the pressure casting method, relatively large burrs are generated. In this pressure casting method, slurry is injected under pressure into a casting space surrounded by a water-absorbing mold, and a drainage passage in the mold is depressurized to remove water absorbed by the mold outside the mold. To be discharged. After a sufficient amount of the base material has adhered to the inner surface of the mold (that is, the mold has been deposited), the mold is released. In order to perform this demolding, a fluid pressure such as air is applied to a drainage channel of the molding die to cause water in the molding die to ooze out to the inner surface of the molding die, and a thin water film is formed on the inlaid body (green body). Formed at the interface between the mold and the mold.

When the lower mold is disintegrated and a water film is formed on the inner surface of the mold by applying pressure to the upper mold in a state where the pallet is arranged slightly below the upper mold, the molded body separates from the upper mold and is separated from the pallet. Fall on.

[0004] The green body molded body placed on the pallet
After being subjected to finishing treatments such as deburring and, if necessary, drilling, wiping the surface, and fine-tuning the shape, it is sent to a drying step.

As described above, in the pressure casting method, since the slurry is injected under pressure into the mold, the slurry tends to enter the mating surfaces of the molds and generate burrs. In particular, when the mold is worn, large burrs are likely to occur.

[0006]

[Problems to be solved by the invention] Conventionally, this burr has been removed by applying a grinding jig.
If the shaving is too deep, the edge shape of the molded body will be irregular. Conversely, if the shaving is too shallow, burrs will be left behind.

[0007]

According to the present invention, there is provided a deburring apparatus for a green body molded article according to the present invention, wherein a rotating cylinder is rotated around a cylinder axis by a motor, and a wire mesh is provided around the rotating cylinder. And a sponge spacer interposed between the rotating cylinder and the wire mesh at both ends in the axial direction of the rotating cylinder and forming a predetermined gap between the rotating cylinder and the wire mesh. The spacer on one end side in the cylinder axis direction is bonded to only one of the wire mesh and the rotating cylinder, and the spacer on the other end side in the cylinder axis direction is bonded to both the wire mesh and the rotating cylinder. It is characterized by having been done.

[0008]

The deburring apparatus for a green body molded article of the present invention rotates the rotary cylinder and rotates the wire netting so that the outer peripheral surface of the wire mesh is brought into contact with the burred edge of the green body formed body. This wire mesh removes burrs. Since this wire mesh is supported on the rotating cylinder via sponges at both ends,
The force pressed against the green compact is soft. In addition, one end of the wire mesh is not restrained by the rotating cylinder, and the wire mesh can expand and contract in the axial direction of the cylinder.

[0009] For this reason, the wire mesh is prevented from being excessively pressed against the green compact, and the green compact is not deeply scraped off. In addition, since the wire mesh is rotated, the burr itself is efficiently scraped off.

[0010]

Embodiments will be described below with reference to the drawings. FIG. 1 is a perspective view of a deburring device for a green body formed body according to an embodiment, FIG. 2 is a perspective view of a rotating cylinder of the deburring device for a green body formed body according to the embodiment, and FIG. It is sectional drawing of the deburring apparatus of such a green body molded object.

The green body deburring apparatus 10 is
A rotating cylinder 12 that is rotated around a cylinder axis by a motor (not shown), a wire mesh 14 provided in a cylindrical shape so as to surround the rotating cylinder 12, and two ends of the rotating cylinder 12 in the cylinder axis direction. Sponge spacers 16 and 18 are provided between the rotating cylinder 12 and the wire mesh 14 and form a predetermined space between the rotating cylinder 12 and the wire mesh 14.

The spacer 16 on the rear end side in the cylinder axis direction
Is bonded only to the rotary cylinder 12, and the spacer 18 on the distal end side in the axial direction of the cylinder is bonded to both the metal mesh 14 and the rotary cylinder 12.

At the rear end of the rotary cylinder 12, a bearing seat 22 for receiving the rotary shaft 20 is formed in a recess. The rotary cylinder 12 is fixed to the shaft 20 inserted into the bearing seat 22 by screws 24.

The deburring apparatus 10 for a green body molded body includes:
The outer circumferential surface of the wire mesh 14 is brought into contact with the burred edge of the green body (not shown) while rotating the rotating cylinder 12 and rotating the wire mesh 14. Burrs are scraped off by the wire net 14. This wire mesh has a sponge 16 on both ends,
Since it is supported by the rotating cylinder via 18, the force pressed against the green compact is soft. Moreover,
The rear end of the wire mesh 14 is not restrained with respect to the rotary cylinder 12, and the wire mesh can expand and contract in the axial direction of the cylinder.

[0015] For this reason, the wire mesh 14 is prevented from being excessively pressed against the green compact, and the green compact is not deeply scraped off. In addition, wire mesh 1
In order to rotate 4, the burr itself is efficiently scraped off.

Incidentally, in order to remove mud scum adhering to the wire mesh 14 by the deburring operation, the wire mesh may be pressed against the rotating sponge belt or rubbed with a brush.

In the above embodiment, the sponge 16 is
, But may be bonded to the wire net 14. Also,
The sponge 18 may be bonded to one of the rotating cylinder 12 and the wire mesh 14, and the sponge 16 may be bonded to both the rotating cylinder 12 and the wire mesh 14.

[0018]

[Effect of the Invention] As described above, according to the deburring apparatus for a green body formed body of the present invention, the burr of the green body formed body can be easily removed. In this deburring, the green body is not excessively shaved. Not only deburring but also chamfering of the green body can be performed.

[Brief description of the drawings]

FIG. 1 is a perspective view of an apparatus for deburring a green body according to an embodiment.

FIG. 2 is a perspective view of a rotary cylinder of the device for removing deburred green body according to the embodiment.

FIG. 3 is a cross-sectional view of a device for deburring a green body molded body according to an example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Deburring apparatus of green compact 12 Rotary cylinder 14 Wire mesh 16, 18 Sponge

Claims (1)

(57) [Scope of request for utility model registration] 1. A rotating cylinder rotated around a cylinder axis by a motor, a wire mesh provided in a cylindrical shape so as to surround the rotating cylinder, and the rotating cylinder at both ends of the rotating cylinder in a cylinder axis direction. And a sponge spacer interposed between the rotary cylinder and the wire mesh, and a sponge spacer that forms a predetermined distance between the rotary cylinder and the wire mesh. A deburring device for a green body, wherein the spacer is adhered to only one of the rotating cylinders, and the spacer at the other end in the axial direction of the cylinder is bonded to both the wire mesh and the rotating cylinder.