JP2013066970A - Continuous shotblasting device - Google Patents

Abstract

[PROBLEMS] To clean a large-diameter object to be cleaned while automatically rolling it so that the entire surrounding surface can be efficiently and evenly cleaned in a short time. Provided is a continuous shot blasting apparatus capable of continuously performing charging, polishing, and discharging.
A side disk 5 that is rotatable in contact with the upper surface of both sides of a rotating endless annular belt 1, a belt tilting pulley 6 that is positioned downstream of the rotating endless belt and can be tilted up and down to push up the endless annular belt from the lower surface, And a pulley 4 that keeps the tension of the belt constant, and by raising the belt raising and lowering pulley, the endless annular belt is lifted along the outer periphery of the side disk, and the object to be cleaned is retained while rolling and is cleaned. At the same time, when the object to be polished is finished, the endless annular belt is flattened by lowering the belt raising pulley, and the object to be cleaned placed on the belt is sent out.
[Selection] Figure 1

Description

  The present invention relates to a shot blasting apparatus capable of efficiently and evenly projecting a polishing material on the entire surface of an object to be polished, and in particular, automatically arranged continuously in the production line of the object to be polished. The present invention relates to a continuous shot blasting apparatus that can be sharpened.

As a method of blasting the outer peripheral surface of the object to be polished, a method of projecting the polishing material while rolling the object to be cleaned in a grooved trough or the like, There is a method of passing through the projection area of the abrasive while moving on the belt conveyor. The trough type blasting device is suitable for the object to be cleaned, which is relatively small and easy to roll, and the belt conveyor type blasting device is suitable for polishing one side of the flat object to be cleaned. ing.
As a trough blasting device, a part of the endless annular belt is used to suitably roll the object to be polished so that the abrasive is projected onto the entire surface of the object to be polished and evenly cleaned. There is a shot blasting apparatus that constitutes a trough having a concave groove and projects a polishing material while rolling the object to be polished in the trough (see Patent Document 1).
Further, as a belt conveyor type blasting apparatus, there is a shot blasting apparatus that allows a flat object to be cleaned placed on a belt conveyor to pass through a projection area of an abrasive (see Patent Document 2).

JP 2008-137084 A Japanese Utility Model Publication No. 07-15261

Although the trough type blasting apparatus described above can sweep a large number of objects to be cleaned at once by setting the trough to have a large diameter, the trough is removed when the objects to be cleaned are discharged. In order to open the front end of the endless belt with a roller located on the lower surface of the endless belt or after lowering the roller, it is necessary to reverse the endless belt to discharge the material to be scanned. It was not suitable for full-automatic flow work.
In addition, the belt conveyor type blasting device can clean up one surface of the flat object to be cleaned continuously as a flow operation, but cannot clean the entire surface of the object to be cleaned. .
For this reason, in the case of continuously polishing the entire surrounding area of a somewhat large die-cast product or the like, it is necessary to perform an operation that requires manual operations such as putting the objects to be polished on a hanger one by one.

  The present invention has been made in view of the above-mentioned circumstances, and the object thereof is to be arranged in the production line of the object to be polished and continuously cleaned, and has a large diameter. Even if it is a to-be-polished object, it can be suitably rolled so that the entire surrounding area can be evenly and efficiently cleaned in a short time, and the structure of the blasting device that tends to become large and large in diameter is simplified. It is to provide a continuous shot blasting device that can be miniaturized.

The continuous shot blasting apparatus of the present invention is a shot blasting apparatus for projecting an abrasive while advancing an object to be polished placed on an endless annular belt that is wound around a plurality of pulleys in one direction. A side disk that is rotatable by contacting the upper surface of both sides of the moving endless annular belt and fixing the center axis position, and a belt tilting that is located downstream of the side disk and that can be tilted up and down to push up the endless annular belt from the lower surface. A pulley and a tension pulley that can move a rotating shaft to keep the tension of the endless annular belt constant, and lift the endless belt by lifting the belt raising / lowering pulley along the outer periphery of the side disk. When the object to be polished is retained while being rolled, the belt tilting pump is turned on when the object to be polished is cleaned. By flattening the endless belt by lowering the over, characterized in that sending to eject the HiKen 掃物 placing thereon.
By adopting such a configuration, even a large-diameter object to be polished can be suitably rolled so that the entire surrounding surface can be efficiently and evenly cleaned in a short time, and the polishing is completed. Then, the belt raising pulley is lowered, the endless annular belt is flattened, and the object to be cleaned can be sent to the discharge side without changing the rotation direction of the endless annular belt. It is possible to continuously carry out the input, scouring, and discharging of the sweeping material.

The endless annular belt always rotates in one direction, and is provided with an input port for the object to be cleaned on the upstream side and a discharge port for the object to be cleaned on the downstream side.
By adopting such a configuration, the object to be polished can always be sent out in a certain direction and continuous processing of the polishing process can be performed.

In addition, two abrasive projection machines that project the abrasive onto the object to be polished are arranged along the direction of rotation on the endless annular belt on which the side disks are located on both sides. The rotation direction of the projection rotor and the projection angle with respect to the material to be cleaned are made different in the sweeping material projector.
By adopting such a configuration, it is possible to perform a suitable cleaning process by projecting the polishing material uniformly over the entire surface of the object to be cleaned.

It is explanatory drawing which looked at the continuous shot blasting apparatus of this invention from the side. It is explanatory drawing which looked at the continuous shot blasting apparatus of this invention from the side. It is explanatory drawing which looked at the continuous shot blasting apparatus of this invention from the side. It is explanatory drawing which looked at the continuous shot blasting apparatus of this invention from the front.

  Hereinafter, an embodiment for carrying out a continuous shot blasting apparatus according to the present invention will be described in detail with reference to the drawings. 1 to 4 are diagrams illustrating embodiments of the present invention. In these drawings, the same reference numerals denote the same components, and the basic configuration and operation are the same. To do.

<Configuration>
1 to 4 show an embodiment of the continuous shot blasting apparatus of the present invention.
As shown in FIG. 1, an endless annular belt 1 made of a flexible wide rubber belt or the like is wound around three pulleys 2, 3, 4 (at least one of which is a rotational drive means), It has an inverted triangular shape with a flat upper surface on which the sweeper W is placed and conveyed. The lower pulley 4 has a structure that can move up and down to keep the tension of the endless annular belt 1 constant.

In the figure, 5 is a side disk positioned substantially at the center of the upper surface of the endless annular belt 1 and is in contact with both side edges of the endless annular belt 1 so as to be freely rotatable, and 6 is downstream of the side disk 5 and on the lower surface of the endless annular belt 1. 1 is a belt raising / lowering pulley that is lifted along the outer periphery of the side disk 5 by rotating the left side of FIG. The belt raising / lowering pulley 6 is rotated counterclockwise and lowered to flatten the upper surface of the endless annular belt 1.
In the figure, reference numeral 7 denotes an inlet for introducing the material to be studied W, and 8 denotes an outlet for delivering the material to be studied W to the next process.
In the figure, reference numerals 9 and 10 denote abrasive material projectors for projecting an abrasive material, and two are disposed above the endless annular belt 1 corresponding to the side disk 5 along the rotational direction thereof. Then, as can be seen from the direction of the projected abrasive material shown in FIG. 4, the projection angle is changed by changing the rotation direction of the projection rotor in the two abrasive material projectors 9 and 10 and changing the position of the projection port. Is set so that the abrasive is uniformly applied regardless of the position of the workpiece W on the endless annular belt 1.
In the figure, reference numeral 11 denotes a rotary sieve (trommel) for selecting the abrasive by applying the abrasive collected after the projection to the sieve.

<Operation>
In FIG. 2, a belt raising / lowering pulley 6 is raised by a control device (not shown) for driving and controlling the continuous shot blasting device of the present invention so that the endless annular belt 1 is lifted along the outer periphery of the side disk 5 ( At this time, the pulley 4 moves upward so as to maintain the tension of the belt in order to exert an action as a tension pulley. Then, when the object to be cleaned W is input from the input port 7, the object to be polished W is conveyed from the right to the left in the figure on the upper surface of the endless annular belt 1.
The object to be polished W conveyed on the endless annular belt 1 stays repeatedly rolling at this position without getting over the wall of the lifted endless annular belt 1, and the projection of the abrasive material located above this The abrasive is projected from the machines 9 and 10.
When the polishing material has been projected, the belt raising pulley 6 is tilted to flatten the upper surface of the endless annular belt 1 (the pulley 4 moves downward to maintain the belt tension), and the polishing is thereby performed. The polished object W is transported in the left direction in the figure and sent out from the discharge port 8 to the next process. When this series of operations is completed, the process returns to the beginning and raises the belt raising / lowering pulley 6 to process the next object to be cleaned W in the same manner.

When the continuous shot blasting apparatus according to the present invention is used to clean one surface of a flat object to be polished, the endless belt 1 is set with the belt raising pulley 6 always tilted. The surface to be polished can be cleaned while being transported continuously from the right to the left in the figure while keeping the top surface of the substrate flat.
In the above-described embodiment, the case where the objects to be polished are subjected to the cleaning process one by one has been described. However, the present invention is not limited to this, and even when two objects are mounted on the belt at a time, The two abrasive material projectors 9 and 10 are capable of projecting the abrasive material uniformly from above the belt so as to be suitably cleaned.
In this way, the to-be-squeezed object W can be efficiently scoured, and a relatively large to-be-squeezed object can be steadily rolled, and the process of automatic loading, scouring, and discharging without requiring manual labor. Can be processed.

  The continuous shot blasting apparatus of the present invention can be used in the processing industry for polishing a workpiece such as metal.

DESCRIPTION OF SYMBOLS 1 ... Endless annular belt 2, 3, 4 ... Pulley 5 ... Side disk 6 ... Belt raising pulley 7 ... Input port 8 ... Discharge port 9, 10 ... Abrasive material projector W ...

Claims (3)

In a shot blasting device for projecting a polishing material while advancing the object to be cleaned placed on an endless annular belt that is wound around a plurality of pulleys in one direction,
A side disk that is in contact with the upper surface of both sides of the rotating endless annular belt and that is rotatable with its center axis fixed, and a belt starter that is positioned downstream of the side disk and that can be raised and lowered to push the endless annular belt up from the lower surface An inversion pulley and a tension pulley that can move the rotation shaft to keep the tension of the endless annular belt constant;
While lifting the belt raising pulley, the endless annular belt is lifted along the outer periphery of the side disk and cleaned while rolling the object to be polished,
The continuous shot is characterized in that when the polishing of the object to be cleaned is finished, the endless annular belt is flattened by lowering the belt raising and lowering pulley, and the object to be cleaned placed on the belt is discharged. Blasting device.   2. The continuous shot according to claim 1, wherein the endless annular belt always rotates in one direction, and is provided with an inlet for an object to be cleaned upstream and an outlet for the object to be cleaned downstream. Blasting device.   Two abrasive material projectors for projecting the abrasive material to the object to be polished are disposed on the endless annular belt on which the side disks are positioned on both sides along the rotation direction of the abrasive material. 3. The continuous shot blasting apparatus according to claim 1, wherein the rotation direction of the projection rotor in the projector and the projection angle with respect to the material to be cleaned are made different.