KR100825057B1 - Air shot blast device for edge part - Google Patents

Abstract

A shot blast device for an edge part is provided to improve the precision of the shot process by automatically performing the shot process on a welding zone which has been subject to a coating treatment. A shot blast device for an edge part comprises a cabinet(10), a nozzle(20), an air-shot tank(30), a conveyer(40) and a dust collector(50) connected to the cabinet through a duct(52). The cabinet has a shot division(14) defined by a shielding plate(16). The nozzle is installed on the shot division of the cabinet to spray a shot ball toward an edge part of a product. The air shot tank is connected to the nozzle to supply the shot ball in a high pressure. An auxiliary tank(32) is installed at an upper part of the air shot tank and is opened/closed by a valve(32a). The conveyor is installed at a lower part of the cabinet to collect the shot ball sprayed through the nozzle and transfer the shot ball to the auxiliary tank.

Description

Air shot blasting device for edge part {Air shot blast device for edge part}

BRIEF DESCRIPTION OF THE DRAWINGS The front view which shows the air short blasting apparatus for the edge part as a whole.

Fig. 2 is a plan view of the edge portion air short blasting apparatus according to the present invention as a whole.

Figure 3 is a block diagram showing the internal configuration of the air short blasting device for the edge portion according to the present invention.

Figure 4 is an enlarged view showing the main part of the air short blasting device for the edge portion according to the present invention.

* Explanation of symbols on the main parts of the drawings

10: cabinet 12: conveyor 14: short compartment

16: shield plate 20: nozzle 30: air short tank

32: auxiliary tank 40: transfer conveyor 50: dust collector

52: duct

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air short blast apparatus for edge portions, and more particularly, to an air short blast apparatus for edge portions for locally shorting a welded portion of a coated product to remove paint on its surface.

Typically, subsidiary materials such as metal frames used in ships, steel structures, construction equipment, etc. are formed into a predetermined shape through a processing process, and then the entire surface is coated to prevent corrosion. This process is mainly done automatically through the shot blasting device, and the finished product is transported to the site and fixed by welding. At this time, in order to prevent welding failure due to the coating applied on the surface of the product, the welding part, that is, the edge The work was done very inefficiently because the operator had to scrape the paint on the edge using a tool such as a brush.

Accordingly, conventionally, a short particle in a small particle state is filled in a storage tank, and high pressure compressed air is put into the storage tank, and the shot ball is applied to the surface of the product by using an air short blasting device in which the short ball is sprayed with high pressure through a nozzle together with the compressed air. Although the applied coating is removed locally, this raises a number of problems:

First, when a worker manually grabs the nozzle connected to the storage tank and moves, the shot is sprayed on the welding part of the product, that is, the edge part.

Second, as the manual process was performed, the short treatment section could not be kept constant. In particular, when the short treatment process was unnecessary for unskilled workers or the user's carelessness, there have been many cases where the coating process has to be repeated.

Third, the storage tank is equipped with a large capacity so that many people can work at the same time at the same time as the nozzles are installed in 4 to 6 places, so that the spraying pressure of the shot ball through the multiple nozzles is maintained unreasonably. High pressure compressed air is input. Accordingly, as the short ball is transported, the friction coefficient is increased due to the high pressure, and the magnetic field is generated. As the short ball is sprayed in the form of lumps, the shot processing performance is deteriorated, and in particular, the closed end of the product is damaged by the lumped shot balls. .

Fourth, even if a worker wears protective equipment such as a mask during the short treatment, an excessive amount of dust is inhaled during long hours of work, and thus the defense environment is urgent, and thus the work environment is urgently improved.

The present invention has been made in order to solve the above problems, and automatically short-circuit the welded parts of the finished product to improve the shot precision and productivity at the same time, in particular by increasing the coefficient of friction while the shot ball is transported at high pressure It is an object of the present invention to provide an air short blasting device for the edge portion to prevent the occurrence of magnetic field.

In order to achieve the above object, the present invention provides a conveyor 12 in which a product S is loaded, and a short compartment 14 in which an edge portion E of the product S is partially exposed at one end of the conveyor 12. A cabinet 10 having a shield plate 16 to be formed; A nozzle (20) installed on the short compartment (14) of the cabinet (10) and provided to spray the shot ball (B) to the edge portion (E) of the product (S); An air short tank 30 connected to the nozzle 20 to supply the shot ball B at a high pressure and having an auxiliary tank 32 opened and closed by a valve 32a at an upper end thereof; A transport conveyor 40 installed at the bottom of the cabinet 10 and configured to collect the shot balls B injected through the nozzle 20 and to transport the shot balls B onto the auxiliary tank 32; And a dust collector (50) connected through the duct (52) provided at the upper end of the cabinet (10) and sucking dust generated during a short process.

At this time, the shield plate 16 is characterized in that the detachable is provided in a double plate-like structure in which the space portion (16a) is formed in the center.

In addition, the nozzle 20 is provided in a set of one to three at the position corresponding to the upper, lower or upper, lower and side surfaces of the edge portion (E), one air short tank 30 per one to three nozzles (30) ) Is connected.

In addition, the nozzle 20 is fixed to the clamp 22, the clamp 22 is adjustable through a plurality of articulation rods 26 are provided so that rotation and linear transfer is interrupted by the fastening force of the fixture 24. It is characterized in that the installation.

In addition, the auxiliary tank 32 is characterized in that the diaphragm 34 is installed therein so that the internal space is divided, and the shot ball B is transferred through the supply pipe 34a provided in the diaphragm 34. .

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

1 is a front view showing an overall air shot blasting device for the edge portion according to the present invention, Figure 2 is a plan view showing an overall air short blasting device for the edge portion according to the present invention, Figure 3 is an air short for the edge portion according to the present invention It is a block diagram which shows an internal structure of a blast apparatus, and FIG. 4 is the block diagram which expands and shows the principal part of the air short blast apparatus for edge parts which concerns on this invention.

The present invention relates to an air short blasting device for an edge portion, wherein the air short blasting device for an edge portion is a welded portion of a product in which a shot ball stored in the air shot tank 30 is sprayed at a high speed by the pressure of compressed air, thereby completing a coating process. In order to locally remove only the coating of the edge part, the cabinet 10, the nozzle 20, the air short tank 30, the conveying conveyor 40, the dust collector 50, etc., characterized in that the main configuration.

In the cabinet 10 according to the present invention, the conveyor 12 in which the product S is loaded is installed, and the short compartment 14 partially exposing the edge portion E of the product S is exposed at one end of the conveyor 12. The shield plate 16 is provided to be formed. The cabinet 10 has a predetermined space portion formed therein, the kenveyer 12 is installed so that the product (S) is loaded / unloaded, the lower portion is formed in a conical shape and the shot ball (B) through the nozzle 20 to be described later This spraying has a structure that is quickly collected to the lower center portion of the cabinet (10).

In addition, the cabinet 10 has an internal space divided by the shielding plate 16 to form a short compartment 14, wherein the shielding plate 16 is an edge portion of the product S transported on the conveyor 12. One surface corresponding to the edge portion E of the product S is cut in the conveying direction of the conveyor 12 so that only (E) is locally exposed on the short compartment 14, and spaced apart in a double plate structure. When the shielding plate 16 installed and exposed on the short compartment 14 is worn during the short treatment, the shielding plate 16 may be easily replaced, and as the spaced space 16a serves as a heat insulating part, Overall overheating of the cabinet 10 due to the temperature rise of the short compartment 14 is prevented.

When the shot ball B is sprayed at a high speed through the nozzle 20 to be described later, only the edge portion E exposed on the shot compartment 14 is locally rubbed with the shot ball B, and is short-processed. The remaining portion except for (E) is protected by the shield plate 16.

In addition, the nozzle 20 according to the present invention is provided on the shot compartment 14 of the cabinet 10 so as to spray the shot ball B to the edge portion E of the product S. Nozzle 20 is connected to the air short tank 30, which will be described later in a separate pipe, one to three are installed in a set at a position corresponding to the upper, lower or upper, lower and side surfaces of the edge portion E, One air short tank 30 is connected to one or three nozzles.

That is, as shown in the enlarged view of FIG. 4, in consideration of the shape of the edge portion E, the nozzles 20 are installed at spaced positions corresponding to the top, bottom, or top, bottom, and side surfaces, and the shot balls S are injected. The nozzle 20 is provided in plurality in each position, in order to uniformly spray the shot ball (S) to the edge portion (E) is preferably provided in a pair of two. The nozzle 20 is disposed so that when the paint surface is formed thick, the shot balls B are repeatedly sprayed at the same points of the plurality of nozzles 20, and when the width of the edge portion E is wide, The nozzle 20 is positioned to spray the shot ball B in the divided region.

At this time, the nozzle 20 is fixed to the clamp 22, the clamp 22 is adjustable in position through a plurality of joint rods 26 are provided so that rotation and linear transfer is interrupted by the fastening force of the fastener 24. Is installed. Articulation rod 26 is one end is fixed on the cabinet (10) through the fixture 24 is installed so that the other articulation rod 26 with clamp 22 is adjusted to the height and length of the product (S) edge portion Flexibility to change the position of the nozzle 20 in consideration of the thickness and width (E) and the state of the painted surface is provided.

And, the nozzle 20 is connected to one air shot tank 30 per one to three shot ball B is supplied (for example, the air shot tank 30 in Figure 2 is provided in two places per unit The two nozzles 20 are connected to each other, which means that high pressure compressed air must be introduced to supply the shot balls B to four or more nozzles 20 using one air short tank 30. And, this is due to the increase in the friction coefficient is increased by the transfer pressure of the shot ball (B) transferred from the air shot tank 30 to the injector 36, the magnetic field is generated as the shot ball (B) is injected in the form of air By increasing the number of installation of the short tank 30, by limiting the number of installation of the nozzle 20 per unit of the air short tank 30 to three or less, there is an advantage that the aggregation of the shot ball (B) due to the magnetic field is prevented. .

In addition, the air short tank 30 according to the present invention is connected to the nozzle 20 to supply the shot ball (B) at a high pressure, and the auxiliary tank 32 which is opened and closed by a valve 32a is provided at the upper end. . The air short tank 30 is provided with an air tube 37 so that the compressed air is injected into the air short tank 30, and the air pipe 37 is connected to the air short tank 30 through the auxiliary air tank 39 storing the compressed air. It is connected to the injector 36 provided on the bottom. When the shot ball B stored in the air short tank 30 is injected into the injector 36 by the compressed air, the shot ball B is transported at high speed together with the compressed air and sprayed through the nozzle 20.

At this time, the air short tank 30 is opened and closed by the operation of the valve 30a is divided into a double space, which is the valve when the short ball (B) stored in the air short tank 30 is consumed more than half The divided space is cut off by 30a, and when the shot ball B stored on the auxiliary tank 32 is filled, the valve 30a is opened again to communicate the divided space while the shot ball B is continuously connected. Is supplied.

Here, the auxiliary tank 32 is provided with a diaphragm 34 therein, the internal space is divided, the short ball (B) is transferred through the supply pipe (34a) provided in the diaphragm 34. At this time, the plate 34 is formed in a funnel shape, the supply pipe 34a is projected to be spaced apart from the bottom of the auxiliary tank 32 at regular intervals. When the shot ball B carried through the conveying conveyor 40 to be described later is introduced into the auxiliary tank 32, the filling part is primarily filled in the upper space based on the diaphragm 34, and a part thereof is provided through the supply pipe 34a. Filled in the lower space, but when the filling amount of the short ball (B) coincides with the end of the supply pipe 34a, the flow of the short ball (B) through the supply pipe 34a is blocked.

Accordingly, as the short ball B is prepared in a constant amount in the lower space of the auxiliary tank 32, the valve 32a is opened to maintain a uniform feed amount when the short ball B is supplied into the air short tank 30. As a result, it is possible to prevent quantitative injection, as well as malfunctions such as clogging due to an increase in feed pressure.

In addition, the conveying conveyor 40 according to the present invention is installed at the bottom of the cabinet (10), is provided to collect the shot ball (B) injected through the nozzle 20 to transport on the auxiliary tank (32). Transfer conveyor 40 is a screw conveyor 41 for collecting the short ball (B) in the lower cabinet 10, and the short ball (B) collected through the screw conveyor 41 on the auxiliary tank (32). It is provided with a belt conveyor 42 to transport to serve to continuously circulate the shot ball (B) dropped after the short treatment.

In addition, the dust collector according to the present invention is connected through the duct 52 provided on the cabinet 10, and sucks dust generated during the short process. The dust collector 50 is a device that sucks air by the operation of a pen and collects foreign substances contained in the air. The dust collector 50 is connected to a plurality of ducts 52 provided in the upper part of the cabinet 10 to collect dust generated during a short process. It will be collected.

According to the above configuration and operation, the present invention, as the process of locally shorting the edge portion (welded portion) of the coated product is continuously performed automatically, the productivity is remarkably improved, as well as the position of the nozzle as well as the angle of each edge portion. A plurality of shots are sprayed on each side, so that the paint is more effectively removed.

In addition, the number of nozzles connected to each air short tank is limited, so that the transfer pressure of the shot bull is kept constant, thus preventing the occurrence of magnetic field due to the increase of the friction coefficient during the transfer. There is a useful effect.

Claims (5)

The conveyor 12 is loaded with the product (S) is installed, removable in a double-plate structure in which the space portion (16a) is formed in the center so that the edge portion (E) of the product (S) is partially exposed at one end of the conveyor (12). A cabinet 10 in which a short compartment 14 is formed by a shielding plate 16 provided to be provided; A nozzle (20) installed on the short compartment (14) of the cabinet (10) and provided to spray the shot ball (B) to the edge portion (E) of the product (S); An air short tank 30 connected to the nozzle 20 to supply the shot ball B at a high pressure and having an auxiliary tank 32 opened and closed by a valve 32a at an upper end thereof; A transport conveyor 40 installed at the bottom of the cabinet 10 and configured to collect the shot balls B injected through the nozzle 20 and to transport the shot balls B onto the auxiliary tank 32; And And a dust collector (50) connected through a duct (52) provided at the upper end of the cabinet (10), and suctioning dust generated during a short treatment process. delete The method of claim 1, One or three nozzles 20 are installed at positions corresponding to the upper, lower, upper, lower, and side surfaces of the edge portion E, and one air short tank 30 is provided for each of the nozzles 1-3. Air short blasting device for the edge portion characterized in that connected. The method of claim 1, The nozzle 20 is fixed to the clamp 22, the clamp 22 is installed to be adjustable in position through a plurality of joint rods 26 are provided so that rotation and linear transfer is interrupted by the fastening force of the fastener 24 Air short blasting device for the edge portion characterized in that. Conveyor 12 is loaded with the product (S) is installed, the shielding plate 16 is provided so that the short compartment 14 is formed at one end of the conveyor 12 to expose the edge portion (E) of the product (S). Cabinet (10); A nozzle (20) installed on the short compartment (14) of the cabinet (10) and provided to spray the shot ball (B) to the edge portion (E) of the product (S); The auxiliary tank 32 is connected to the nozzle 20 to supply the shot ball B at a high pressure, and is opened and closed by a valve 32a at an upper end thereof, and the auxiliary tank 32 has a diaphragm 34 therein. Air short tank 30 is installed so that the internal space is divided, and the shot ball (B) is transferred through the supply pipe (34a) provided in the diaphragm 34; A transport conveyor 40 installed at the bottom of the cabinet 10 and configured to collect the shot balls B injected through the nozzle 20 and to transport the shot balls B onto the auxiliary tank 32; And And a dust collector (50) connected through a duct (52) provided at the upper end of the cabinet (10), and suctioning dust generated during a short treatment process.

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