JPH04109859U - tumbling blasting equipment - Google Patents

Abstract

(57) [Summary] [Purpose] A tumbling blasting device that controls the agitation flow rate of the workpiece to be tumbled within a predetermined range and widens the shot projection zone to increase the probability of direct shot hitting the workpiece. get. [Structure] A tumbling blasting device equipped with a centrifugal projector capable of controlling the moving speed of an endless apron belt or the rotational speed of a rotating drum, and making the width distribution of shot projection a diffuse distribution or a wide-angle uniform distribution.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

This invention targets the workpiece by moving an endless apron belt or rotating a rotating drum. A tambourine that projects and blasts shots while mixing (stirring and flowing). Regarding the blasting device.

0002

[Conventional technology]

As a conventional tumbling blasting device, the device shown in Fig. 4 is generally known. ing. In other words, inside the cabinet body 1 are two discs 2, 2 and three pulleys. -3, 3, 3 are arranged, and the endless apron belt 4 is wrapped around the pulleys 3, 3, 3. It has been done. On the other hand, a centrifugal projector 5 is installed on the ceiling of the cabinet body 1. , which is a projecting material toward the workpiece W that is stirred and flowed by the endless apron belt 4. Shot 6 is projected.

0003 However, with this type of tumbling blasting equipment, there are The agitation flow speed of the processed product differs greatly, and the shape and shape of the product are particularly easy to roll. The shape of the pile will be very different. But passing through the projection zone of the shot It is inconvenient whether the flow rate of the processed product is fast or slow, and the stirring flow rate is too fast. The entire surface of the workpiece in the shot projection zone receives the direct shot evenly. On the other hand, if the stirring flow speed is slow, the shot projection There is less chance of the workpiece rolling in the turn, and there are surfaces that are not hit by direct shots. There's a problem. Conventionally, processing time has been increased to solve these problems, but This increases the amount of waste during processing and increases the processing time, causing some of the processed products to be agitated. This also causes problems such as the same surface being polished more than necessary, causing the polished surface to sag. I was there.

0004 The present invention was developed in view of the above problems, and it Controls the stirring flow speed within a predetermined range and widens the shot projection zone. We propose a tumbling blasting device that can increase the probability of direct shot hitting the processed item. The purpose is to provide

[0005]

[Means for solving problems]

In order to achieve the above purpose, the tumbling brass and device in the present invention are The moving speed of the end apron belt or the rotating speed of the rotating drum can be controlled at variable speeds. and above the endless apron belt or at one end of the rotating drum. The width distribution of the projection is divided by the diffusion component in the moving direction of the belt or the rotating direction of the rotating drum. The device is characterized by being equipped with a cloth or a centrifugal projector that produces wide-angle uniform distribution.

[0006]

[Effect]

By adopting the above-mentioned solution, the present invention can reduce the shape and size of the workpiece. The moving speed of the endless apron belt or the rotating speed of the rotating drum depending on the size, etc. is controlled to keep the agitation flow rate of the processed product within a predetermined range and to project the shot. Now the zone is enlarged, and the entire surface of the workpiece is exposed in a short period of time. You can evenly hit the target with a direct shot.

[0007]

【Example】

Embodiments of the present invention will be described in detail below with reference to FIGS. 1 to 3. In the figure , Inside the cabinet body 11, two discs 12, 12 are placed at an appropriate interval. It is rotatably disposed and extends downward from the back surface surrounding the disks 12, 12. Pulleys 13, 13, 13 are provided at three points across the sides, and one pulley The relay 13 is electrically connected to a forward/reverse rotating motor with a transmission (not shown). Also before An endless apron is provided over the back surfaces of the pulleys 13, 13, 13 and the discs 12, 12. A belt 14 is wound around the tank to form a tumbling tank with an L-shaped cross section as a whole. ing. Corresponds to the tumbling tank on the ceiling of the cabinet body 11 In FIG. 1, the position is a diffuse distribution projection 16A with a projection shot directed toward the workpiece W. A centrifugal projector 15A is also shown in FIG. A centrifugal projector 15B is provided for projecting wide-angle uniform distribution 16B. Also in the diagram 17 is a bucket elevator, 18 is a shot separator, and 19 is a cabinet. This is an opening/closing lid for the main body 11.

[0008] The device configured in this way includes disks 12, 12 and an endless apron belt 14. The product to be processed W is put into the tumbling tank, and the agitation flow suitable for the product to be processed W is applied. A motor with a gearbox (not shown) is driven to achieve this speed through the pulley 13. Then, the endless apron belt 14 is moved at an appropriate speed in the direction of the arrow in FIG. this The workpiece W in the tank is scooped up counterclockwise at an appropriate speed and raised to an appropriate height. It reaches this position and the inversion and fall are repeated. During this time, centrifugal projectors 15A and 15B The shot is processed by diffuse distribution projection 16A or wide-angle uniform distribution projection 16B. Product W was subjected to the blasting effect of several direct shots during several inversions and falls. Become so. The projected shot falls through the shot hole in the apron belt 4. are collected at the bottom of the cabinet 11, and lifted upward by the bucket elevator 17. The shot separator 18 removes contaminants such as dust. It is sent to centrifugal projectors 15A and 15B, where it is projected again and the blasting process is repeated. conduct. Below, we will explain how to carry out the workpieces W that have been blasted and how to transport the workpieces W that have not yet been processed. Injection, etc. are performed in the same manner as before.

[0009] In the above embodiment, the workpiece W is tumbled by the endless apron belt 14. I explained about a type of tumbling blasting device, but due to the rotation of a rotating drum, Even if it is a tumbling blasting device that tumbles the workpiece W, The rotation speed of the rotating drum can be controlled, and diffuse distribution projection or wide-angle uniform projection can be achieved. A similar effect can be obtained by providing a centrifugal projector capable of projecting images.

0010

[Effect of the idea]

As is clear from the above explanation, the present invention improves the moving speed of the endless apron belt. This enables variable speed control of the rotation speed of the rotating drum and expands the shot width distribution. The structure is equipped with a centrifugal projector that provides dispersed distribution or wide-angle uniform distribution, so it is possible to The agitation flow rate is kept within the specified range, and the shot projection zone is widened. The probability of direct shot hitting the processed product can be increased, and the workpiece can be directly hit in a short time. This allows for uniform blasting over the entire area.

[Brief explanation of drawings]

FIG. 1 is a schematic diagram showing an embodiment of the present invention.

FIG. 2 is a side view of the main part of FIG. 1;

FIG. 3 is a schematic diagram showing another embodiment of the present invention.

FIG. 4 is a schematic diagram showing a conventional tumbling blasting device.

[Explanation of symbols]

12 disk 13 Pulley with variable speed control 14 Endless Apron Belt 15A centrifugal projector 15B Centrifugal projector 16A Diffuse distribution projection 16B wide-angle uniform distribution projection W Item to be processed

Claims (1)

[Scope of utility model registration request] 1. A tumbling blasting device that performs blasting while tumbling a workpiece by moving an endless apron belt or rotating a rotating drum, the apparatus comprising: a tumbling blasting device that performs a blasting process while tumbling a workpiece by moving an endless apron belt or rotating a rotating drum; A centrifugal projector is disposed above the endless apron belt or at one end of the rotating drum to make the width distribution of shot projection a diffuse distribution or a wide-angle uniform distribution with respect to the moving direction of the endless apron belt or the rotating direction of the rotating drum. A tumbling blasting device characterized by: