JPS5841985B2 - shot blasting equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a shot blasting apparatus for removing deburrs from aluminum castings, removing sand from small castings, removing scale, and the like.

Conventionally, as a device for shot blasting small cast products, a tumbler type shot blasting device is known in which the product is placed in a rotating drum and a blast material is projected.

However, conventional tumbler-type shot blasting equipment has a structure in which the entire equipment is rotated, except for the projection device centered on the impeller, and a transport device such as a packet elevator is attached to circulate and collect the blast material. This has the disadvantage that the equipment is larger than the processed product and the manufacturing cost is high.

The present invention has been made with the aim of eliminating the above-mentioned drawbacks, and its construction will be explained in detail with reference to embodiments shown in the drawings.

In FIGS. 1 and 2, reference numeral 1 denotes a cabinet made of iron plate supported by support legs 2, and an opening 3 provided in the lower wall of the cabinet 1 has a centrifugal projector that projects projecting material diagonally upward. 4 is attached to the upper side plate portion of the cabinet 1, and an entrance 5 for taking products in and out is provided in the upper side plate portion of the cabinet 1, and a door 6 is attached to the entrance 5 so as to be openable and closable.

The opening 3 of the cabinet 1 to which the centrifugal projector 4 is attached is connected to an obliquely upward projection passage 7 provided within the cabinet 1.

Furthermore, a rotating shaft 9 rotatably supported by a bearing 8° 8 outside the cabinet is provided in the side plate portion of the cabinet 1 opposite to the entrance 5, and
The rear end of a cylindrical cage body 11 made of a punched iron plate and having a tapered tip is fixed to the inner end of the rotating shaft 9 via a mounting disk 10.

Further, the rear end of the rotating shaft 9 is connected to a cheno wheel 15 of a motor 14 with a reducer installed on the ceiling of the cabinet 1 via a cheno wheel 12 and a cheno wheel 13, and the cylindrical cage body 11 is It is slowly rotated by the drive of the motor 14.

Further, on the outer periphery of the upper half of the cylindrical basket body 11, a reflection plate 16 for projectile material made of a wear-resistant material is attached to the cabinet 1 at an appropriate interval, and the projectile material falls onto the cabinet 1 by being reflected by the reflection plate 16. A hopper 17 having a separator structure is constructed in the lower part of the hopper 17, and the lower end of the hopper 11 is connected to a projecting material introduction tube 18 attached to the centrifugal projector 4.
A gauge 17a for adjusting the flow rate of the shot material is attached to the connecting portion between the introduction tube 18 and the hopper 17.

Further, on the upper part of the hopper 17, there are two guide plates 19°19.
A projected hammering sound 21 having a slit 20 is formed by
A suction port 24 communicating with a duct 23 of a dust collector 22 integrally attached to the hopper 17 is opened, and a ventilator for taking in outside air is configured on one side of the hopper 17.

That is, the hopper 17 has a separator structure that separates impurities from the shot material falling from the slit 20 of the shot sound 21.

In addition, 25 in the figure is a motor for driving the centrifugal projector 4.

With this configuration, the door 6 is opened, the product is placed in the basket body 11, the door 6 is closed, the dust collector 22 is driven, the motor 14 is driven, the basket body 11 is rotated, and the motor 25 is roughly driven. to rotate the centrifugal projector 4 and play game H.
When 7a is opened, the shot material is supplied from the introduction tube 18 to the centrifugal projector 4, and is shot toward the rotating cage body 11, passes through the hole in the cage body 11, hits the product, and is shot blasted. Work is carried out for purposes such as sand removal, scale removal, and deburring.

The projected material hits the product or the reflector 16 and falls, and is accumulated in the projection sound 21, and sequentially falls from the slit 20 and enters the hopper 17, but at this time, it receives the suction action from the suction port 24, and the sand , scale, paris, etc. are removed by dust collector 2.
Only the shot material sucked into the hopper 17 is stored in the hopper 17.

The shot material accumulated in the hopper 17 is sent from the introduction tube 18 to the centrifugal projector 4 again for re-projection.

When such operations are performed continuously for a certain period of time, gate 1
7 is closed, the motors 25, 14, and dust collector 22 are stopped in that order, and the door 6 is opened to take out the shot blasted product and the work is completed.

In the embodiment, the cylindrical cage body 11 is made of a punched iron plate, but it may also be made of wire mesh, expanded metal, or a grid made of round bars, square bars, flat mesh, etc. good.

As is clear from the above description, the present invention provides a rotating cage body in the upper part of the cabinet, and provides an obliquely upward projection passage with a centrifugal projector at the base end in the lower part of the cabinet. The invention is characterized in that a shot material reservoir is configured adjacent to the shot material introduction tube of the centrifugal projector and communicates with the shot material introduction tube of the centrifugal projector via a hopper having a separator structure, so that small items can be cast while automatically collecting the shot material. In addition to being able to shot-blast products, there is no need for a shot material collection device such as a packet elevator or screw conveyor that is found in conventional shot-blasting equipment, and the product is agitated by rotating only the light basket body. The entire device can be manufactured economically since only one step is required.

Furthermore, as the device becomes lighter and smaller, it has various advantages such as easier relocation of the device and less power required, and the effects it brings to the industry are tremendous.

[Brief explanation of drawings]

FIG. 1 is a partially cutaway front view showing one embodiment of the present invention, and FIG.
The figure is a partially cutaway side view. 1... Cabinet, 4... Centrifugal projector, 5... Product entrance/exit, 6... Door, 7
..... Projection passage, 17 .... Separator structure hopper, 21 .... Projection material reservoir.

Claims (1)

[Claims] 1 A rotary basket body 11 is placed in a cabinet 1 having a product entrance 5 with a door 6 on the upper side, and the opening thereof is connected to the entrance 5.
The cabinet 1 is arranged so as to face the cabinet 1.
A slanted upward projection passage 7 with a centrifugal projector 4 at its base end is provided in the lower part of the interior, and a hopper 17 having a separator structure is installed adjacent to this projection passage in the projectile introduction tube 18 of the centrifugal projector 4. A shot blasting device characterized in that a shot blasting material reservoir 21 is configured to communicate with each other via a shot blasting material reservoir 21.