JP6196516B2 - Shot blasting equipment - Google Patents

Description

  The present invention relates to a shot blasting apparatus having a large size to be used for processing a large amount of a deburring object.

A conventional shot blasting apparatus is used to remove fine burrs adhering to a small molded product.
However, recently, there is a story that I want to use it to remove burrs attached to large molded products, and as measures against this, we have responded by increasing the size of the barrel, the size of the projection material, and the size of the projector. As a countermeasure, the stirring plate in the barrel is a rectangular plate, so if the size of the stirring plate is increased to match the size of the workpiece, the projection material may be obstructed, and the mounting angle of the stirring plate should be perpendicular to the bottom of the barrel. Therefore, there is a drawback in that the processed product does not ride on the stirring plate and cannot be sufficiently stirred.

JP 2004-209604 A

  In view of the above-described conventional drawbacks, the present invention can efficiently project a projection material on a processed object even in a large barrel, can efficiently stir the processed object, and can efficiently perform a deburring operation. An object of the present invention is to provide a shot blasting device that can be used.

The above and other objects and novel features of the present invention will become more fully apparent when the following description is read in conjunction with the accompanying drawings.
However, the drawings are for explanation only and do not limit the technical scope of the present invention.

  In order to achieve the above object, the present invention provides a shot blasting apparatus in which a barrel that rotates in an inclined state is provided in a blasting processing chamber. The stirring plate main body fixed in an inclined state so that the rear end of the stirring plate is positioned first in the rotation direction, and the stirring plate main body formed at the tip of the portion excluding the rear end side of the stirring plate main body. A shot blasting apparatus is configured by providing a stirring plate including a return plate that guides the processed product on the bottom of the barrel.

As is clear from the above description, the present invention has the following effects.
(1) According to claim 1, the processed product on the stirring plate main body can be prevented from falling off from the stirring plate main body by the return plate, and the barrel rotates to move the stirring plate main body upward. The treated product can slide on the stirring plate body and drop to the bottom of the barrel.
Therefore, while moving a processed material to a rotation direction, it can move to a bottom face direction (front-back direction) from the inlet side of a barrel, and can stir efficiently.
(2) According to (1), the stirring plate body is fixed to the inner wall surface of the barrel in an inclined state so that the rear end portion on the bottom surface side of the front end portion on the inlet side of the barrel is positioned first. Therefore, it is possible to efficiently move the processed material in the front-rear direction.
Therefore, it is possible to improve the effect of stirring the processed material.
(3) According to (1), the structure is simple and can be installed at low cost.
(4) In the second aspect, the same effects as in the above (1) to (3) can be obtained, and the processed product can be more efficiently agitated by the fall-off prevention part of the return plate.
(5) Claim 3 is also formed in a cone, a truncated cone shape, a polygonal pyramid shape or a polygonal frustum shape in which the center part of the bottom surface of the barrel projects inward while obtaining the same effects as in the above (1) to (3) Therefore, the processed product can be stirred more efficiently.

Sectional drawing of the 1st form for implementing this invention. The front view of the barrel of the 1st form for carrying out the present invention. Sectional drawing which follows the 3-3 line of FIG. Sectional drawing which follows the 4-4 line of FIG. Operation | movement explanatory drawing of the stirring plate of the 1st form for implementing this invention. The top view of the 2nd form for carrying out the present invention. Sectional drawing in alignment with line 7-7 in FIG. Explanatory drawing of the projection state of the projection material of the 2nd form for implementing this invention.

  Hereinafter, the present invention will be described in detail with reference to the embodiments shown in the drawings.

  In the first embodiment for carrying out the present invention shown in FIGS. 1 to 5, reference numeral 1 denotes a large shot blasting apparatus according to the present invention for removing burrs from a large molded article (processed product). The apparatus 1 is provided with a hopper 2 at a substantially central portion, a blasting treatment chamber 4 having an upper opening / closing door 3 at an upper portion, and a case body 7 having a projection material treatment chamber 6 having a lower opening / closing door 5 at a lower portion, The case body 7 is installed in the blasting treatment chamber 4 in an inclined state so that the inlet 8 is positioned on the upper opening / closing door 3 side, and is fixedly supported on the hopper 2 by a support plate (not shown). The projection material 12 can be projected onto a large barrel 10 having a weight of about 26 kg, which is attached so as to be rotated by the rotary drive device 9, and a processed object 11 such as a deburring molded product housed in the large barrel 10. , The case In response to the projector 14 using the impeller 13 attached to the upper part of the body 7 and the large burrs, the projection material, and the small burrs from the hopper 2 provided in the projection material processing chamber 6 falling. A sorting device 15 for sorting, a projection material 12 sorted by the sorting device 15, a projection material storage tank 17 that can be fed from the portion to the projector 14 via a suction hose 16, and sorting by the sorting device 15 A large burr storage container 18 that stores the generated large burr, a small burr storage container 19 that stores the small burr sorted by the sorting device 15, and a refrigerant supply device 20 that supplies a refrigerant into the blast treatment chamber 4. It consists of

  The large barrel 10 has an octagonal shape, an octagonal cylindrical barrel body 22 in which a large number of holes 21 whose upper and lower portions have a small diameter are formed, and a cone whose central portion covering the bottom surface of the barrel body 22 projects inward. A bottom plate 23 formed in a truncated cone shape, a polygonal pyramid or a polygonal frustum shape, and an inner wall surface of the barrel main body 22, a rear end portion 24 b on the bottom surface side from a front end portion 24 a on the inlet 8 side of the barrel main body 22. However, the substantially triangular stirring plate main body 24 fixed in the inclined 25 state so that the rotation direction is located first, the tip portion of the portion excluding the rear end portion 24b side of the stirring plate main body 24 is formed, A return plate 26 that guides the processed material 11 on the stirring plate main body 24 toward the bottom surface of the barrel main body 22, and a drop-off prevention portion 27 that is bent and formed at the tip end of the barrel main body 22 on the inlet 8 side. A stirring plate 28 consisting of It is configured.

  The shot blasting apparatus 1 having the above-described configuration opens the upper opening / closing door 3, loads a large processed material 11 from the charging port 8 of the large barrel 10, and closes the upper opening / closing door 3.

  Thereafter, if necessary, the on-off valve 29 of the refrigerant supply device 20 is opened in the blast treatment chamber 4 to supply the refrigerant, and the projector 14, the rotation drive device 9 and the sorting device 15 are driven. , And the impeller 13 of the projector 14 projects the projection material 12 sorted by the sorting device 15 onto the processed object 11 in the large barrel 10 to remove burrs.

  At this time, the processed product 11 stored in the large barrel 10 is rotated by the large barrel 10, the processed product 11 is placed on the stirring plate main body 24 by the stirring plate 28, and is mounted on the stirring plate main body 24 by the return plate 26. When the processed product 11 is pushed upward without dropping, the processed product 11 slides toward the rear end portion 24 b of the return plate 26 and drops onto the bottom plate 23 of the large barrel 10.

  As a result, the processed material 11 can be agitated while being slid and moved in the direction of the inlet 8 and the bottom plate 23 (front-rear direction) of the large barrel 10, and efficient agitation can be achieved.

[Different forms for carrying out the invention]
Next, different modes for carrying out the present invention shown in FIGS. 6 to 8 will be described. In the description of different embodiments for carrying out the present invention, the same components as those in the first embodiment for carrying out the present invention are denoted by the same reference numerals, and redundant description is omitted.

  The second embodiment for carrying out the present invention shown in FIGS. 6 to 8 is mainly different from the first embodiment for carrying out the present invention in that the projection material is placed in the case body 7 into the large barrel 10. Two projectors 14 and 12 can be projected by the impellers 13 and 13, two projectors 14 and 14 are inclined with respect to the large barrel 10 and arranged in a staggered manner. Even the shot blasting apparatus 1A using 14 or 14 can obtain the same effects as those of the first embodiment for carrying out the present invention, and can reliably perform the processing 11 in the large barrel 10 over a wide range. Projection materials 12 and 12 can be projected on.

  In each of the embodiments of the present invention, the one using the octagonal barrel body 22 has been described. However, the present invention is not limited to this, and the upper and lower portions may be cylindrical with a small diameter, and the bottom plate is a flat plate. A shape may be used.

  INDUSTRIAL APPLICABILITY The present invention is used in an industry for manufacturing a large shot blasting apparatus used when a large amount of deburring work is processed from a processed product of a large molded product.

1, 1A: Shot blasting device,
2: Hopper 3: Upper door
4: Blast treatment chamber, 5: Lower door
6: Projection material processing chamber, 7: Case body,
8: loading port, 9: rotation drive device,
10: Large barrel, 11: Processed product,
12: Projection material, 13: Impeller,
14: Projector, 15: Sorting device,
16: Suction hose, 17: Projection material storage tank,
18: Large burr storage container, 19: Small burr storage container,
20: Refrigerant supply device, 21: Hole,
22: barrel body, 23: bottom plate,
24: Stirring plate body, 25: Inclination,
26: return plate, 27: drop-off prevention part,
28: Stirring plate, 29: Open / close valve.

Claims (3)

In the shot blasting apparatus provided with a barrel that rotates in an inclined state in the blasting chamber, the rear end portion on the bottom surface side is positioned on the inner wall surface of the barrel first in the rotation direction from the front end portion on the inlet side of the barrel. The stir plate main body fixed in an inclined state and the processed product on the stir plate main body formed at the tip of the portion excluding the rear end side of the stir plate main body are directed toward the bottom surface of the barrel. A shot blasting apparatus comprising a stirring plate comprising a return plate for guiding. 2. The shot blast according to claim 1, wherein the stirring plate main body and the return plate are bent at a right angle, and the tip end portion of the return plate barrel on the inlet side is bent inward to form a drop-off preventing portion. apparatus. 2. The shot blasting apparatus according to claim 1, wherein the bottom surface of the barrel is formed in a conical shape, a truncated cone shape, a polygonal pyramid shape or a polygonal frustum shape whose central portion protrudes inward.

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