JPH07709U - Deburring device for green body compact - Google Patents

Abstract

(57) [Summary] [Structure] Rotating cylinder 12, wire mesh 14 provided in a cylindrical shape so as to surround the rotating cylinder 12, and the rotating cylinder and the metal mesh on both ends in the cylinder axis direction of the rotating cylinder. And spacers 16 and 18 made of sponge which are interposed between the rotary cylinder and the wire net to form a predetermined space. 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 front end side in the cylinder axis direction is bonded to both the wire net 14 and the rotary cylinder 12. There is. [Effect] Burrs on the green body can be easily removed. In this deburring, the green body molding is not shaved excessively. Not only deburring but also chamfering of the green body molding can be performed.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a deburring device for green body compacts used in the manufacturing process of ceramics.

[0002]

[Prior art]

 When molding a green body molded body for manufacturing a ceramics, a burr may be generated on the molded body. Particularly in the pressure casting method, relatively large burrs are generated. In this pressure casting method, the slurry is pressurized and injected into the casting space surrounded by the water-absorbing mold, and the drainage channel inside the mold is depressurized to remove the water absorbed by the mold. Discharge to the outside. After a sufficient amount of the base material has adhered to the inner surface of the mold (that is, has been inlaid), the mold is removed. In order to perform this demolding, a fluid pressure such as air is applied to the drainage channel of the molding die so that the water inside the molding die oozes out to the inner surface of the molding die, and a thin water film is adhered to the molded product (green body molding). Is formed at the interface between the mold and the mold.

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

The green body compact placed on the pallet is subjected to finishing treatments such as deburring, drilling as necessary, surface wiping and fine adjustment of the shape, and then sent to the drying step. .

As described above, in the pressure casting method, the sludge is injected under pressure into the molding die, so that the sludge easily invades the mating surfaces of the molding dies and burrs are apt to occur. Especially when the mold is worn out, large burrs are likely to occur.

[0006]

Conventionally, this burr has been scraped off by applying a grinding jig, but if the scraping is too deep, the edge shape of the molded body becomes irregular. On the other hand, if the shaving is too shallow, some burrs will be left behind.

[0007]

[Means for Solving the Problems]

 The green body compact deburring device of the present invention comprises a rotary cylinder rotated by a motor around a cylinder axis, a wire mesh provided in a cylindrical shape surrounding the rotary cylinder, and a cylinder axis of the rotary cylinder. And a sponge spacer interposed between the rotary cylinder and the wire netting at both ends in the direction to form a predetermined space between the rotary cylinder and the wire netting. The spacer on the side is bonded to only one of the wire mesh and the rotary cylinder, and the spacer on the other end side in the cylinder axis direction is bonded to both the wire mesh and the rotary cylinder. Is.

[0008]

[Action]

 In the deburring device for a green body molded body of the present invention, a rotary cylinder is rotated, and while the wire mesh is rotated, the outer peripheral surface of the wire mesh is applied to the burred edge portion of the green body molded body. This wire net removes burrs. Since both ends of this wire net are supported by the rotary cylinder via sponges, the force pressed against the green body compact becomes soft. Moreover, one end of the wire mesh is not constrained to the rotary cylinder, and the wire mesh can expand and contract in the axial direction of the cylinder.

From this, the wire mesh is prevented from being excessively pressed against the green body compact, and the green body compact is not deeply scraped. Also, since the wire mesh is rotated, the burr itself is efficiently scraped off.

[0010]

【Example】

 Hereinafter, embodiments will be described with reference to the drawings. FIG. 1 is a perspective view of a deburring device for a green body compact according to an embodiment, FIG. 2 is a perspective view of a rotary cylinder of a deburring device for a green compact according to an example, and FIG. 3 is an example. FIG. 3 is a cross-sectional view of a deburring device for such a green body compact.

This green body deburring device 10 includes a rotary cylinder 12 rotated around a cylinder axis by a motor (not shown), and a wire mesh provided in a cylindrical shape so as to surround the rotary cylinder 12. 14, and a sponge which is interposed between the rotary cylinder 12 and the wire mesh 14 at both ends of the rotary cylinder 12 in the cylinder axis direction, and which forms a predetermined space between the rotary cylinder 12 and the wire mesh 14. And spacers 16 and 18 made of steel.

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 front end side in the cylinder axis direction is attached to both the wire net 14 and the rotary cylinder 12. It is glued.

A bearing seat 22 for receiving the rotary shaft 20 is recessed at the rear end of the rotary cylinder 12. The rotary cylinder 12 is fixed to the shaft 20 inserted in the bearing seat 22 with screws 24.

In this deburring device 10 for a green body molded body, while rotating a rotary cylinder 12 and rotating a wire net 14, the outer peripheral surface of the metal net 14 is provided with a flash of a green body green body (not shown). Apply to the part. Burrs are scraped off by the wire netting 14. Since both ends of the wire net are supported by the rotary cylinder via the sponges 16 and 18, the force applied to the green body formed body is soft. Moreover, the rear end side of the wire mesh 14 is not constrained to the rotating cylinder 12, and the wire mesh can expand and contract in the axial direction of the cylinder.

From the above, the wire mesh 14 is prevented from being excessively strongly pressed against the green body green body, and the green body green body is not deeply scraped off. Further, since the wire netting 14 is rotated, the burr itself is efficiently scraped off.

In order to remove the mud debris attached to the wire net 14 by the deburring operation, the wire net may be pressed against the rotating sponge belt or rubbed with a brush.

Although the sponge 16 is adhered to the rotary cylinder 12 in the above embodiment, it may be adhered to the wire net 14. Alternatively, the sponge 18 may be bonded to one of the rotary cylinder 12 and the wire net 14, and the sponge 16 may be bonded to both the rotary cylinder 12 and the wire net 14.

[0018]

[Effect of device]

 As described above, according to the deburring device for a green body formed body of the present invention, the burr of the green body formed body can be easily removed. When removing this burr, the green body compact is not shaved excessively. Not only deburring but also chamfering of the green body can be performed.

[Brief description of drawings]

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

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

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

[Explanation of symbols]

 10 Deburring device for green compact 12 Rotating cylinder 14 Wire mesh 16,18 Sponge

Claims (1)

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