JP2000218548A - Shot blast method and facility therefor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent products from colliding on each other by providing projections on both right and left outer surfaces of the products, respectively, and enabling the projections to hold the product and intermittently turn it in a vertical plane while making it to rotate by itself. SOLUTION: Two retainers 5 are radially mounted around the center of rotation of a rotary body, projections are formed on both right and left sides of a product 3 to hold the product 3 and enable it to rotate in a vertical plane. A cabinet 1 is provided with an opening for carrying the product in and out formed at a middle position of a left wall, and a plurality of shot chargers of centrifugal type 7 are mounted at a position near the right side of a ceiling. While the product 3 is rotated in the vertical plane by the charger 7 driven, shot is charged toward the product 3 so that it is subjected to blast treatment. Accordingly, there occurs no collision between the products 3 and facility with a small scale is attained.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and an apparatus suitable for blasting various products.

[0002]

2. Description of the Related Art For example, blasting of various products such as a gear case and an engine block is conventionally performed by rolling the product in a rotating drum or passing the product through a cleaning chamber by a hanger-type conveyor, and then applying the product on the way. This was done by projecting shots.

[0003]

However, of the conventional shot blasting methods configured as described above, in the former method, the products collide with each other to damage or break the products.
In the latter case, there is a problem that the equipment becomes large and expensive.

The present invention has been made in view of the above circumstances, and has as its object to provide a shot blasting method and equipment capable of minimizing equipment while preventing collision between products. It is in.

[0005]

According to a first aspect of the present invention, there is provided a shot blasting method for blasting a product while rotating the product in a vertical plane in a cleaning room. Protrusions are provided on each of the left and right outer surfaces of the product, the product is held by the protrusions, intermittently rotated in a vertical plane and rotated, and a shot is projected during the rotation to project the product. The blast processing is performed.

A shot blasting facility according to a second aspect of the present invention is a facility which is capable of blasting a product having projections on both left and right outer surfaces while rotating the product in a vertical plane in a polishing chamber. A cabinet that constitutes a chamber, is disposed horizontally and intermittently rotatably arranged in a vertical plane, has a closed-bottomed cylindrical shape, penetrates the cabinet from side to side, and further has an opening at a predetermined position of the body. A rotating body having the rotating body, and a plurality of holding devices that are radially arranged around the rotating center of the rotating body, are attached to the rotating body, hold the protrusions of the product, and rotate in a vertical plane. Features.

[0007]

According to the shot blast equipment of claim 2,
After the product to be blasted is passed through the opening of the rotating body and set in the holding device, the rotating body is moved to a position of the shot projecting device, and then the holding device rotates the product in a vertical plane. A shot is projected by a shot projecting device. The projected shot hits the product after passing through the opening of the rotating body. In this way, after the blast processing is completed, the product is moved to the set position on the holding device by the rotating body, and then the product is taken out.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS In the shot blasting method according to the first aspect, the product is not particularly limited, and any product may be used as long as the holding projections are provided on each of the left and right sides. For example, a product body provided with a gate or the like provided on a casting method is also included. Then, the protrusions are appropriately removed after the blast processing. The blast processing is performed by projecting an appropriate shot with centrifugal force or compressed air.

[0009]

BRIEF DESCRIPTION OF THE DRAWINGS FIG.
This will be described in detail based on FIG. As shown in FIG. 1 which is a longitudinal sectional view, the cleaning equipment comprises a cabinet 1 constituting a cleaning room.
An opening 2c which is disposed horizontally so as to be intermittently rotatable in a vertical plane, has a cylindrical shape with a lid 2a and a bottom 2b, penetrates the cabinet 1 to the left and right, and is provided at a predetermined position of the trunk.
A rotating body 2 having a rotating body 2c and, as shown in FIG. 2, a projecting portion 4 which is radially mounted on the rotating body 2 with its center of rotation protruding from the left and right outer surfaces of the product 3; And two holding devices 5 for holding and rotating in a vertical plane.

As shown in FIG. 2, the cabinet 1 has a product entry / exit opening 6 at the middle position on the left side wall, and projects a shot toward the product 3 at a position on the right side of the ceiling. Centrifugal type multiple shot projecting device 7
7 is attached.

The rotator 2 is rotatably supported by a plurality of support rollers (not shown) fixedly disposed outside the cabinet 1. As shown in FIG. An annular sprocket (not shown) is fitted on the outer surface. The sprocket has a speed reducer fixedly disposed at a position on the right side of the ceiling of the cabinet 1, and has a sprocket 9 and They are connected via a roller chain 10. Thus, the rotating body 2 is rotated by 180 degrees by the driving of the motor 8 with the speed reducer. As shown in FIG. 2, the internal space of the rotating body 2 extends radially around the center of rotation of the rotating body 2.
It is divided into a total of four spaces 12, 12, 13, and 13 by two large and small two by the partition plates 11.

Further, each of the holding devices 5, 5
As shown in FIGS. 3 and 4, the lid 2 of the rotating body 2 is partially positioned in the large space 12 of the rotating body 2.
a, a right and left supporting member 15 mounted on a front lid of the cylinder 14, and a supporting member 15 mounted on a front lid of the cylinder 14;
And attachments 16 and 17 which are attached to the projections 3 and receive the projections 4 of the product 3. The cylinder 14 is connected via a transmission mechanism 19 to a motor 18 with a speed reducer mounted on the lid 2a of the rotating body 2, and is rotated by the drive of the motor 18 with a speed reducer. I have. Further, an angle detection mechanism 20 for detecting a rotation angle of the cylinder 14, the support member 15, the product 3, and the like is mounted on the lid 2a of the rotating body 2. A claw member 21 is attached to the tip of the piston rod of the cylinder 14.

Reference numeral 22 in the drawing denotes a screw conveyor, and reference numeral 23 denotes an industrial robot for carrying in / out a product.

Next, the operation of the above-configured equipment will be described mainly with reference to FIGS. 2 and 4. The inclination of the attachments 16 and 17 of the holding device 5 located on the opening 6 side of the cabinet 1 by the angle detection mechanism 20. After detecting the state and setting it to a required state, the product 3 to be blasted by the industrial robot 23 is set on the holding device 5 and the projections 4 and 4 of the product 3 are attached to the attachments 16 and 17.
Then, the cylinder 14 is extended and the claw member 21 is engaged with the left protrusion 4 to fix the product 3. Next, the motor 8 with a speed reducer is driven for a required time to rotate the rotating body 2 by a required angle (180 degrees), and the holding device 5 holding the product 3 is turned to the position where the shot projecting devices 7 and 7 are located.

Next, the motor 1 with a speed reducer of the holding device 5
While driving the product 8 via the cylinder 14 and the support member 15 to rotate (rotate) the product 3 in a vertical plane, the shot projecting devices 7 are driven to project a shot toward the product 3. When the shape of the product 3 is complicated, the rotation of the cylinder 14 is temporarily stopped or particularly slowed down under the control of the angle detection mechanism 20 when the projected shot hits a place where the shape of the product 3 is complicated. The shot can hit the product 3 sufficiently.

After the blast processing of the product 3 is completed, the driving of the motor 18 with the reduction gear is stopped under the control of the angle detecting mechanism 20, and the driving of the shot projecting devices 7, 7 is stopped.
Subsequently, the motor 8 with a speed reducer is further driven for a required time to invert the rotating body 2 by 180 degrees, and the holding device 5 holding the product 3 after the blasting process is moved to the opening 6 side to return to the original position. return. Next, the cylinder 14 is contracted and the claw member 21 is pulled away from the projection 4 to release the fixed state of the product 3. Subsequently, the product 3 is taken out of the holding device 5 by the industrial robot 23.

[0017]

As is apparent from the above description, the present invention relates to a method in which a product can be blasted while rotating in a vertical plane in a cleaning room. The product is held by the protrusion and rotated intermittently in a vertical plane and rotated, and the product is blasted by projecting a shot during the rotation. It has excellent effects such as no collisions and small-scale equipment.

[Brief description of the drawings]

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

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

FIG. 3 is an enlarged partial cross-sectional view of a main part (clamping device) in FIG. 1;

FIG. 4 is a plan view of FIG. 3;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Cabinet 2 Rotating body Product Projection part 5 Holding device 20 Angle detection mechanism

Claims (3)

[Claims] 1. A method in which a product can be blasted while being rotated in a vertical plane in a cleaning chamber, wherein a projection is provided on each of left and right outer surfaces of the product, and the product is attached to the projection. A shot blasting method comprising: intermittently turning and rotating in a vertical plane while holding the product, and projecting a shot during the rotation to blast the product. 2. A facility for blasting a product having protrusions on both left and right outer surfaces in a vertical plane in a polishing chamber, and a cabinet constituting the polishing chamber; A rotating body which is disposed in a horizontal state, is intermittently rotatable in a vertical plane, has a closed bottomed cylindrical shape, penetrates the cabinet to the left and right, and further has an opening at a predetermined position of a body; A shot blasting facility, comprising: a plurality of holding devices that are mounted on a body radially around a center of rotation thereof and that hold the protrusions of the product and rotate in a vertical plane. 3. The shot blast equipment according to claim 2, wherein said holding device is provided with an angle detecting mechanism for detecting a rotation angle of said product.