Projector and Blasting Machine

Abstract

Disclosed are a projector comprising an impeller rotated at high speed by a high-speed rotation driving device and a cover for covering the outer peripheral part of the impeller and having a projection material suction port and a projection material discharge port; and a blasting machine. In the projector, the entire of the impeller or the portion of the impeller with which the projection material is collided is formed of a high wear resistant rubber. It is possible to prevent the impeller and the projection material from damage, and to improve the durability of the projector. Furthermore, projection materials having high grinding property or those having fine particles and low specific gravity may also be used for the projector. Since the weight of the projector is light, it can be rotated directly by a motor at high speed and can be used under such conditions as ultra low temperature, ordinary temperature, high moisture, etc.

Description

BACKGROUND OF THE INVENTION[0001]The present invention relates to a projector to be used for a shot blast machine, and a shot blast machine which deburrs and treats surface of molded goods and removes crud attached to surface of workpieces.[0002]The conventional shot blast machine uses the projector with the impeller which is made of metal material. This brings a drawback that the projectile damages itself when it strikes the impeller. Another drawback is that projectile with high grindability cannot be used, since it damages the impeller. A still further drawback is that the impeller being used is made of metal material and heavy, requiring a large motor to drive it, high cost and the impeller being hard to rotate at high speed.[0003]Patent Document 1: Japanese published unexamined application H3-234470SUMMARY OF THE INVENTION[0004]In view of the conventional drawbacks as described above, it is an object of the present invention to provide a projector and a shot blast machine which...

AI Technical Summary

Benefits of technology

[0018](6) According to another aspect of the invention having the same effect as the above (1) to (5), durability of the projectile can be further improved and the projector can be further noise-reduced.

[0019](7) According to yet another aspect of the invention having the same effect as the above (1) to (5), deformation of the impeller body under temperature change can be suppressed by the supporting plate, the disc flange, and the plurality of spacing members.

[0020](8) According to yet another aspect of the invention having the same effect as the above (1) to (4), the projector with the impeller blasts out the liquid with the projectile widely, and it deburrs molded goods, treats the surface of molded goods and removes crud attached to the surface of workpieces.

[0021](9) As described in above (8), since the projectile-mixed liquid can be supplied into the projector with the impeller by the pump, the structure is simple, and transporting of the projectile-mixed liquid is smooth.

[0022](10) As described in above (8), since the projectile-mixed liquid can be supplied into the projector with the impeller by the pump and can be blasted out to the workpiece by the projector so as to remove flash from the molded goods (workpiece), it is not necessary to accelerate the speed and increase pressure for the carrying of the projectile-mixed liquid to the projector, the structure is simple and the projectile-mixed liquid is transported reliably.

[0023](11) According to another aspect of the invention having the same effect as the above (1) to (5), the projector has a simple structure and is easy to manufacture. In addition, since the slurry pump is used, it can supply the liquid with the durable projectile in efficiency.

Problems solved by technology

This brings a drawback that the projectile damages itself when it strikes the impeller.

Another drawback is that projectile with high grindability cannot be used, since it damages the impeller.

A still further drawback is that the impeller being used is made of metal material and heavy, requiring a large motor to drive it, high cost and the impeller being hard to rotate at high speed.

Images