JPH06143144A - Continuous type shot blast equipment - Google Patents

Abstract

PURPOSE:To reduce the size of a cabinet, to prevent a shot from colliding with the rotation device of a rotary drum, and to set the moving speed of a product in the rotary drum to an arbitrary value. CONSTITUTION:An inclination frame 14 approximately horizontally extending through a cabinet 1 is disposed inclinably in the extending-through direction of the cabinet 1 to the cabinet 1 on the ceiling of which a shot projection device 3 is mounted. A rotary drum 16 having an opening formed in the upper part of a drum and corresponding to the shot projection device 3 is horizontally installed on the inclination frame 14 in a state to be rotated forward and reverse in a given angle arc. Further, continuous type shot blast equipment comprises an inclination device 15 to incline the inclination frame 14; a rotation device 16 to rotate forward and reverse the rotary drum 16 in a given angle arc; and a seal mechanism 19 to effect a seal between the side wall of the cabinet 1 and the drum body of the rotary drum 16.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to improvement of equipment for continuously polishing and sweeping products by using a rotary drum which constitutes a polishing and sweeping chamber.

[0002]

2. Description of the Related Art Conventionally, as disclosed in U.S. Pat. No. 4,319,624 as one of the equipments of this type, a rotary drum is placed in a cabinet having a plurality of shot projection devices mounted on the ceiling with a slight inclination. There is a structure in which an opening through which projected shots pass is provided at a position in the body of the rotating drum, which is opposed to the plurality of shot projection devices, and the rotating drum is configured to be rotatable forward and backward about 120 degrees.

[0003]

However, in the conventional equipment constructed in this manner, the cabinet is large in size because it encloses the entire rotary drum, and the rotary device for the rotary drum is located inside the cabinet. However, since the shot is projected and the moving speed of the product in the rotary drum is substantially constant, there is a problem that uneven polishing occurs depending on the product. The present invention has been made in order to solve the above-mentioned problems, and it is possible to reduce the size of the cabinet, moreover, the shot does not hit the rotating device of the rotating drum, and moreover, the product in the rotating drum is It is an object of the present invention to provide a continuous shot blasting equipment in which the moving speed can be set arbitrarily.

[0004]

In order to achieve the above object, the continuous shot blasting equipment according to the present invention is a tilting frame which penetrates the cabinet in a cabinet having a plurality of shot projection devices mounted on the ceiling. Is disposed so as to be tiltable in the penetrating direction of the cabinet, and a rotary drum having a cylindrical shape and having an opening corresponding to the plurality of shot projection devices on the upper part of the body is provided on the tilting frame at a required angle. A tilting device that tilts the tilting frame in a forward-reverse rotatable manner, a tilting device that tilts the rotating drum forward and backward by a required angle, and a side wall of the cabinet and a body of the rotating drum are provided. A sealing mechanism for sealing is provided.

[0005]

In the equipment thus constructed, the tilting device is actuated in advance to tilt the rotary drum at the required angle through the tilting frame so that the product can move within the rotary drum at the required speed. Under this condition, the shot projection device is driven to project a shot, and the rotating device is driven to rotate the rotating drum in the forward and reverse directions. Introduce products that should be. Then, the charged product is transferred downward in the rotating drum while being stirred and tumbled by the forward and reverse rotations of the rotating drum, and is shot and blasted to be blasted, and eventually from the opening of the other end of the rotating drum. Is discharged.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described in detail with reference to FIGS. 1 is a front view and FIG. 1A.
As shown in FIG. 2 which is a sectional view taken along the line A, a cabinet 1 is installed with a pedestal 2. On the ceiling of the cabinet 1, a plurality of shot projection devices 3 and 3 arranged in the left-right direction are mounted so as to be tiltable in the front-rear direction via a tilting mechanism 4, and each shot projection device 3 has a rotary shaft of an impeller in the front-back direction. Is oriented in the direction. In addition, in the tilting mechanism 4, the left and right side walls of the box-shaped tilting member 5 having the shot projection devices 3 and 3 mounted on the bottom thereof are provided with support shafts 6, 6, bearings 7, 7 and support members 8, 8. The upper end of the piston rod of the upward cylinder 9 is attached to the arm 10 near the center of the tilting member 5 so that the arm 10 can be rotated vertically.
The cylinder 9 is pivotally supported by the cabinet 1 via a bracket 11 (see FIG. 2).
reference). Further, as shown in FIG. 2, projection members 12, 12 extending in the front-rear direction are provided on upper outer surfaces of left and right side walls (front and rear side walls in FIG. 1) of the tilting member 5, and the projection members 12, 12 are provided. Is in contact with the inside of the shield plates 13, 13 having an arcuate cross section provided on the ceiling of the cabinet 1,
Even if the tilting member 5 tilts, the projected shot does not jump out.

As shown in FIG. 1, the cabinet 1
A tilting frame 14 penetrating the cabinet 1 in the left and right direction is provided at a lower part of the cabinet inclining in a downward slope to the left. Is supported by the upward cylinders 15 and 15, the two cylinders 15 and 15 are supported by the base frame 31 so as to be vertically rotatable, and the tilting frame 14 is expanded and contracted by the two cylinders 15 and 15.
It can be tilted with respect to the horizontal plane. In addition, on the tilting frame 14, the tilting frame 14
A rotary drum 16 extending along the rotary drum 17 is rotatably mounted by a rotary device 17 so as to be able to rotate in the normal and reverse directions. The portion of the body facing the shot projection devices 3 and 3 has an opening 16a through which the shot shot can pass. Further, the rotating device 17 includes two pairs of supporting rollers 17a, 17a that rotatably support the rotating drum 16 and are driven to rotate.

A cover 18 for covering the vicinity of the left end of the rotary drum 16 is mounted on the left side of the tilting frame 14, and a screw conveyor is provided under the cover 18 for supporting the rotary drum 16. Shots that penetrate the body can be collected. A seal mechanism 19 for sealing the outer surface of the rotary drum 16 is mounted on the left side of the cabinet 1, and in the seal mechanism 19, the left side of FIG. 3 and FIG. As shown in FIG. 4, which is a plan view, the fixed shield plate 20 having an opening through which the rotary drum 16 penetrates is provided with a support member 21,
It is fixed to the cover 18 via 21 and a gap between the fixed shield plate 20 and the rotary drum 16 is sealed by a seal body 22 made of a rubber plate, and an upper end of the fixed shield plate 20 has a joint pin. A rotation shield plate 24 is mounted via a mechanism 23 so as to be vertically rotatable, and the rotation shield plate 24 is supported by a roller mechanism 25 mounted on the cabinet 1 so as to be vertically movable.

Further, as shown in FIGS. 1 and 2, in the vicinity of the center of the rotary drum 16, the inside of the rotary drum 16 is
A partitioning mechanism 26 is installed in the chamber, and in the partitioning mechanism 26, a partitioning body 27 made of a rubber plate is attached to the rotary drum 16 via a support member 28. Two screw conveyors 29, 29 extending in the longitudinal direction of the rotary drum 16 are attached to the lower part of the cabinet 1, and these two screw conveyors 29, 2 are attached.
Reference numeral 9 corresponds to a polishing / cleaning chamber divided into two parts of the rotary drum 16. Further, below the carry-out ports of the screw conveyors 29, 29, there are provided a part of the carrying devices 30, 30 for collecting and carrying the foundry sand and shots that are the exfoliated products.

In the equipment thus constructed, the cylinders 15 and 15 are expanded and contracted in advance to adjust the inclination angle of the tilting frame 14 so that the moving speed of the product in the rotary drum 16 is required. Further, the cylinder 9 of the tilting mechanism 4 is expanded / contracted so that the shot projection devices 3 and 3 are moved via the tilting member 5.
The shot projection apparatuses 3 and 3 are driven while rotating the forward and reverse directions, and the rotation apparatus 17 is driven to drive the shot projection apparatuses 3 and 3.
The rotary drum 16 is normally and reversely rotated within a range in which the shot projected in (1) does not hit the periphery of the opening 16a of the rotary drum 16, and further the screw conveyors 29, 29 are driven. Under this condition, a predetermined amount of the product to be ground and swept is continuously introduced from the right end opening of the rotary drum 16. Then, the thrown product is agitated and tumbled by the normal and reverse rotations of the rotary drum 16, and the shot projection area is expanded by the forward and reverse tilting of the shot projection devices 3 and 3, so that the shot is received efficiently as a whole.

Moreover, the partitioning mechanism 26 is provided inside the rotary drum 16.
Since it is divided into two chambers by the above, a large amount of sand and the like separated from the product is mixed in the shot on the right side portion of the rotary drum 16, and on the left side portion of the rotary drum 16,
There is little peeling from the product, and moreover,
Since the shots in the two chambers are separately collected and shot without dust adhered to the left portion, the cleaning efficiency is high. On the other hand, in order to prevent the shots projected from the shot projecting devices 3 and 3 from popping out, the movable shield plate 24 of the seal mechanism 19 uses the roll mechanism for the gap between the rotating drum 16 and the cabinet 1 which rotate forward and backward by a required angle. By moving up and down through 25, and with respect to the openings at the left and right ends of the rotating drum 16, the rotating drum 1
This is carried out by a sealing mechanism (not shown) provided on 6 or the like. In this way, the product moves to the left inside the rotary drum 16 while being scavenged, and is discharged from the left end opening.

[0012]

As is apparent from the above description, according to the present invention, the cabinet can be made smaller than the conventional cabinet of this kind of equipment, and the moving speed of the product in the rotary drum can be arbitrarily selected. As a result, the entire product can be uniformly cleaned and, in addition, excellent effects such as no hitting of the rotary device of the rotary drum by the shot are exhibited.

[Brief description of drawings]

FIG. 1 is a front view showing an embodiment of the present invention.

FIG. 2 is a sectional view taken along line AA of FIG.

FIG. 3 is an enlarged detailed view of a B part in FIG.

FIG. 4 is a left side view of FIG.

[Explanation of symbols]

 1 Cabinet 1a Opening 3 Shot Projection Device 14 Tilt Frame 15 Tilt Device 16 Rotating Drum 17 Rotating Device 19 Sealing Mechanism 20 Fixed Shielding Plate 22 Seal Main Body 24 Rotating Shielding Plate 26 Partitioning Mechanism

Claims (4)

[Claims] 1. A cabinet 1 and this cabinet 1
A plurality of shot projection devices 3 and 3 mounted on the ceiling of
A tilting frame 14 that penetrates the cabinet 1 substantially horizontally and is tiltable in the penetrating direction of the cabinet 1, and a tilting frame 14 that is cylindrical and is laid horizontally on the tilting frame 14 and that can be rotated in a desired angle forward and backward. A rotary drum 16 having an opening 1a at a position corresponding to the plurality of shot projection devices 3, 3 on the upper part of the body, a tilting device 15 for tilting the tilting frame 14, and the rotary drum 16 at a predetermined angle. A rotating device 17 for rotating,
A continuous shot blast equipment, comprising: a sealing mechanism 19 for sealing between a side wall of the cabinet 1 and a body of the rotating drum 16. 2. The plurality of shot projection devices 3, 3,
The continuous shot blasting equipment according to claim 1, wherein the rotating mechanism (4) is configured to tilt forward and backward in the rotating direction of the rotary drum (16). 3. The continuous machine according to claim 1, wherein the inside of the rotary drum 16 is partitioned into two chambers by a partitioning mechanism 26 near the center, and the two chambers are provided with shot collecting devices 30 and 30, respectively. Type shot blasting equipment. 4. The sealing mechanism 19 seals between the fixed shield plate 20 and the rotary drum 16 and a fixed shield plate 20 which penetrates the rotary drum 16 and is fixed to the tilting frame 14. A flexible seal body 22,
The rotary shield plate 24 is mounted on the upper end of the fixed shield plate 20 so as to be vertically rotatable, and the upper portion thereof is engaged with the outer side surface of the cabinet 1 so as to be vertically movable. Continuous shot blasting equipment.