JP2001179637A - Blasting device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To protect a worker against dust and effectively improve working efficiency and precision. SOLUTION: A blasting chamber 1 is connected to a blower 2 via a suction passage 3, a linearly traveling shaft 5 is provided at the upper part inside the blasting chamber 1, an articulated manipulator 6 is suspended on the linearly traveling shaft 5, a jet nozzle 8 is mounted on the articulated manipulator 6 for jetting a clean-up material, an oscillating arm 10 is arranged at the lower part inside the blasting chamber 1, a turntable 11 is provided on the oscillating arm 10 for supporting a work W, and clean-up material separating and collecting means 13 and dust separating and collecting means 14 are arranged in the suction passage in order from the side of the blasting chamber.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a blasting apparatus capable of automating operations such as peeling of a coating film from a car part, a home appliance part, and the like, surface treatment, and the like.
It is intended to relieve the worker from dirt such as dust, and to greatly improve work efficiency and accuracy.

[0002]

2. Description of the Related Art With increasing interest in reusing resources, for example, works such as automobile parts and home electric parts made of synthetic resin materials are repainted and used as they are, or There has been an increasing demand for crushing the workpiece into other types of molded articles. In any of these cases, it is necessary to temporarily remove the initial coating film of the workpiece.

By the way, in removing such a coating film, it is advantageous to physically remove the coating film by blasting, as compared with the case where the coating film is chemically dissolved with an organic solvent, in that the influence on the environment is reduced. There is.

[0004]

However, most of the conventional blasting work is performed by manually spraying the abrasive material. Therefore, especially when removing the coating film of a large work, In addition to the inevitable exposure of the worker to dust, there is a problem that time is required for the work, and unevenness in the removal of the coating film must be generated.

An object of the present invention is to solve such a problem of the prior art, and an object of the present invention is to make it possible to automate the work itself, thereby making it possible to work the work. Regardless of the size, the manual work of the worker is unnecessary, eliminating the risk of the worker being exposed to dust, etc., and shortening the work time. Another object is to provide a blasting device that provides a sufficiently uniform treated surface.

[0006]

According to the blast apparatus of the present invention, a blast chamber defining a closed space is connected to a pressure reducing means, which can be a blower or the like, through a suction passage. A linear travel axis is provided, and an articulated manipulator that can be guided and displaced is suspended from the linear travel axis, and an injection nozzle that injects the abrasive material is attached to the articulated manipulator. A swing arm displaced in a horizontal plane is provided at the lower portion on the inside, and a turntable for supporting and rotating the work is provided on the swing arm, and the suction passage is sequentially arranged from the blast chamber side. , A means for separating and recovering blast material and a means for separating and recovering garbage.

In this apparatus, the joint type manipulator, the swing arm and the turntable in the blast chamber are operated according to a preset program or the like, so that the abrasive on the workpiece on the turntable is sprayed by the operator. It can be performed automatically without any work, and without waste and unevenness, so that the operator can simply select a predetermined program according to the type and size of the work, etc. Required work such as peeling of coating film can be performed at a location isolated from the atmosphere where dust is generated.Efficient peeling work for each work can be performed efficiently and sufficiently uniformly over the entire work. This can be done for any workpiece in the same way.

On the other hand, the abrasive material that has contributed to the peeling of the paint film is sucked into the suction passage together with the peeled paint film, the crushed abrasive material and other foreign substances under the action of the depressurizing means. The material is separated from foreign matter by means of material separation and recovery, and is reused. Then, the remaining foreign matter is separated and collected from the air stream by the garbage separating and collecting means.

Thus, with this device, the worker can be sufficiently protected from dust and the like, and the working efficiency can be greatly improved by shortening the working time. Each can be uniformly and uniformly surface-treated.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a conceptual view showing an embodiment of the present invention as a partial cross section, in which 1 is a blast chamber defining a closed space, 2 is a blower as an example of a pressure reducing means, Reference numeral 3 denotes a suction passage connecting the bottom wall of the perforated plate of the blast chamber 1 and the blower 2.

Here, a linear running shaft 5 which can be constituted by, for example, a guide rail and a rodless cylinder is attached to the upper inside of the blast chamber 1, in the figure, a ceiling wall 4 thereof. The mold manipulator 6 is suspended. The manipulator 6 has a base 7 that can move along the linear traveling axis 5 and, for example, three or more rotation axes, and has, on its wrist, for example, an injection nozzle that injects abrasive material together with compressed air. 8 is held.

A swing arm 10 swinging in a horizontal plane is provided at a lower portion of the inner side of the blast chamber 1 at a certain distance from the bottom wall 9 of the perforated plate.
For example, a turntable 11 that can sufficiently stably support a work W, such as a bumper for a passenger car, is provided at a position 0, and the swing motion of the swing arm 10 and the turntable 11 The drive means 12 for controlling each of the rotational movements is disposed outside the blast chamber 1.

By the way, in order to operate the swing arm 10 and the like in the blast chamber by the driving means 12 outside the blast chamber, at least the swing arm 10 must be penetrated into and out of the blast chamber 1, and Since it is necessary to provide a horizontal opening in the side wall to allow the swinging of the swinging arm, the opening is made of a flexible or elastic material that allows the displacement of the swinging arm 10 but prevents leakage of dust and the like. It is preferable to close with a member.

[0014] In this case, the abrasive passage separating and collecting means 13 and the garbage separating and collecting means 14 are sequentially arranged in the suction passage 3 from the blast chamber side. 2 if it can be released to the atmosphere.

Here, the separation and recovery means 13 for the abrasive material
Is, for example, a separation unit 13a, a storage unit 13b for temporarily storing the abrasive material separated by the separation unit 13a, and a supply for mixing the abrasive material received from the storage unit 13b into the compressed air flow under pressure. The abrasive material mixed with the compressed air is injected toward the workpiece W again through the injection nozzle 8. The various opening / closing valves of the separation / collection means 13 can be opened / closed as required based on, for example, sequence control.

The separating portion 13a shown in FIG. 1 divides the inside of the housing into an inlet side and an outlet side except for the lower end, a sieve member is provided on the inlet side, and a plurality of sheets are provided on the outlet side. Although the baffle plates are arranged alternately, and the abrasive material dropped to the lower end portion is caused to flow down to the storage portion 13b, the separation portion 13a is configured by a cyclone or other known separation means. Can also. Although not shown,
Exclusion of what is added on the sieve member is to provide a suction means etc. that separately sucks what has accumulated on the sieve member, to periodically clean the sieve member, and to periodically replace the sieve member with a new one And so on.

The garbage separating and collecting means 14 includes a filter section 14a, a storage section 14b for temporarily storing foreign matter separated therefrom, and a collecting section for taking in the foreign matter in the storage section 14b at a required timing. 14c, the foreign matter in the collecting section 14c is removed therefrom as necessary and discarded.

In the apparatus having the above-described structure, the abrasive material is sprayed on the work W based on the selection and setting of a program according to the type, dimensions, etc. of the work W by the operator. The robot 6 and, by extension, the injection nozzle 8 attached thereto are moved with respect to the work W as required, and the work itself is moved as required with the swing arm 10 and the turntable 11 to thereby perform the injection. This can be performed by spraying the abrasive material together with the compressed air from the nozzle 8, whereby the work W, for example, the peeling of the coating film can be sufficiently uniform within a short time regardless of the size of the work. Can be done.

Here, the work W on the turntable
When it is necessary to invert the top and bottom of the workpiece W, for example, after the reversal by the operator's hand, the same spraying of the abrasive material is repeated to realize the uniform peeling of the coating film over the entire work W. be able to.

On the other hand, the abrasive material that has completed work and
Foreign matter including the peeled coating film and the like is first separated and recovered from the porous material bottom wall 9 through the recovery nozzle 15 of the suction passage 3 by the pressure reduction of the blast chamber 1 based on the action of the blower 2. It is guided to the means 13 to separate the abrasive material, and then to the dust separation and collection means 14 to separate foreign matter. Then, the abrasive material collected by the supply unit 13c is ejected again from the ejection nozzle 8 to be used for peeling the coating film, and the foreign matter collected by the collection unit 14c is discarded.

[0021]

As described above, according to the present invention, the worker can be isolated from the atmosphere in which dust or the like is generated and sufficiently protected therefrom. In addition, by operating each movable part in the blast chamber in accordance with the program, Operations such as coating film peeling and surface processing can be performed uniformly over the entire work in a short time regardless of the size and shape of the work.

[Brief description of the drawings]

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

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Blast chamber 2 Blower 3 Suction passage 4 Ceiling wall 5 Linear running axis 6 Articulated manipulator 7 Base 8 Injection nozzle 9 Perforated plate bottom wall 10 Swing arm 11 Turntable 12 Drive means 13 Separation and collection means of polished material 13a Separation part 13b Storage unit 13c Supply unit 14 Separation and collection means of garbage 14a Filter 14b Storage unit 14c Collection unit 15 Audience nozzle W Work

Claims (1)

[Claims] 1. A blast chamber defining a closed space is connected to a pressure reducing means via a suction passage, a straight running shaft is provided inside the blast chamber, and an articulated manipulator is suspended on the straight running shaft. The joint type manipulator is equipped with an injection nozzle for injecting abrasive material, and a swing arm displaced in a horizontal plane is arranged at the lower part inside the blast chamber, and the swing arm is used to support a worktable. Provided, in the suction passage, sequentially from the blast chamber side,
A blasting apparatus comprising means for separating and collecting abrasives and means for separating and collecting dust.