KR102160614B1 - Powder coating system - Google Patents

Abstract

The present invention relates to a powder coating system which can effectively wash foreign materials present on the surface of an object to be coated, can effectively spray a coating material to the surface of the object and can discharge the object dropped to a drying furnace even during a coating step. The powder coating system includes the steps of: (S100) a washing step in which an object to be powder coated is received in a washing unit (100) to wash the foreign materials present on the surface; (S110) a loading step in which the washed object is wound with a first conveyer (210) and a second conveyer (220) of a loading unit (200); (S120) a preheating step in which the object wound and conveyed with the loading unit is heated to a predetermined surface temperature by using a preheating unit (300); (S130) a coating step in which a powder coating material is sprayed to the object subjected to the preheating step and conveyed sequentially by using a coating unit (400) so that the surface of the object may be coated; (S140) a drying step (S140) in which the object coated in the coating step is heated to high temperature to fuse the coating material; and (S150) an unloading step in which the object discharged after the drying step is separated from the loading unit.

Description

Powder coating system {Powder coating system}

In particular, the present invention relates to a powder coating system capable of effectively cleaning foreign substances on the surface of an object to be painted, effectively spraying paint raw materials on the surface of the object, and discharging the object dropped in the drying furnace even during the painting process.

In general, powder coating is formed by making synthetic resin into powder and painting it on the metal surface and melting it at a high temperature to finish it. It is formed to protect the surface of an object made of metal or to have various colors. It is a painting method.

These powder coatings do not contain solvents or diluents, have strong strength of the painted area, can be uniformly painted even in complex shapes, and have the advantage of being able to paint the entire surface at once.On the other hand, if the thickness of the object to be coated is thin, it is difficult to apply and the object There is a disadvantage that a heating furnace with excellent performance is required because it must be disposed at a uniform temperature.

On the other hand, powder coating includes electrostatic spraying, flow deposition, electrostatic induction deposition, and thermal spraying, but among them, the most commonly used method is electrostatic spraying.In electrostatic spraying, high voltage is applied to the tip of the spray gun, so the discharged powder is negative. It is attached to an earthed object that has a charge and has a positive charge, and then heats it to obtain a continuous coating film.

In the conventional powder coating system, in order to apply powder-type paint to the object, an operator must manually mask the application area. After masking, the object is transported by a transfer device and the powder-type paint is sprayed with a nozzle. Apply through.

After that, it is common to heat the object through a heating means and then dry it.

Such a conventional powder coating system requires a process in which an operator must manually mask the object, so the time required for the work process is increased, resulting in low productivity, and a transport device for transporting the object is transported along a transport rail installed on the ceiling. Because the object is hung on the hanger provided so that the object is continuously shaken during the transfer, the object is shaken even after the powder-type paint is applied, so the applied paint is scattered to the outside or is pulled to one side. There was a problem in that it did not have a thickness and thus became a poor painting state.

In addition, the heating room used in the process of preheating or heating and drying the object raises the internal temperature through the heating means. In this conventional heating room, the heating time required to reach a predetermined temperature is long, and according to the heating time. In order to shorten the working time, the length or volume of the heating room is inevitably increased because a large amount of objects must be put in, and as the length of the heating room increases, the length of the entire powder coating system also increases. There was a problem with this occurring.

In particular, a clean painting color appears only when foreign substances are removed from the surface of the object for powder coating.In this way, removing foreign substances on the surface of the object requires the operator to directly spray a mop or air spray to remove foreign substances.

In addition, when moving to the drying furnace, there were many problems that the loaded object fell out of the hook and fell on the bottom of the drying furnace for its own shaking.

Due to the high temperature of the drying furnace, the dropped object cannot be discharged during the drying operation, and the fallen object can be removed only after all processes are completed and the drying furnace heat is discharged.

Patent Document 1: Republic of Korea Utility Model Publication No. 20-2008-0002797 Patent Document 2: Korean Patent Registration No. 10-1857650

The present invention for solving the conventional problem has the following object.

An object of the present invention is to cleanly remove foreign substances on the surface by automatically air cleaning an object to be painted in a washing room.

An object of the present invention is to automatically rotate the object to be painted and at the same time automatically spray paint raw materials to relieve operator fatigue.

An object of the present invention is to immediately discharge and remove an object that has fallen into a drying furnace by vibration or shaking.

The present invention for achieving the above object is a washing step of washing the foreign matter present on the surface by seating the object to be powder-coated on the washing means, and the object having the foreign matter washed to the first transfer unit and the second transfer unit of the loading means. A loading step of winding up, a preheating step of preheating the surface of the object to a constant temperature by a preheating means for the object being wound and transported by the loading means, and powdering the object sequentially transferred through the preheating step by a painting means The painting step of spraying the paint raw material to paint the surface of the object, the drying step of fusing the applied painting raw material by heating the object painted in the painting step to a high temperature through a drying means, and the object discharged through the drying step It is characterized by including an unloading step of separating from the loading means.

The washing means according to the present invention is made to move the entire table up and down by the operation of the lifting cylinder, and the inside of the table is provided with first and second air passages through which air supplied through an air supply line is moved. , A plurality of air nozzles are provided on the second air cylinder to inject air to the top of the table, and a washing machine having a plurality of air nozzles inward is provided at the bottom of the table, and the washing machine includes a driving motor provided on one side and It is installed to be interlocked and protruded to the top of the table by the operation of the driving motor to inject air.

Consisting of the first and second transfer units of the loading means according to the present invention, the first transfer unit is provided with rollers on both sides of the connecting piece so as to be movable along the rail, and the arm and the body are integrally provided at the bottom of the connecting piece. , A rope is provided on the inner side of the body to be wound or unwound by a motor provided on the side, and a hook connected to the rope is provided at the lower end of the body,

The second conveyer is characterized in that a body having a gear on an arm and an outer periphery is provided at the lower end of the connecting piece, and the body is made to rotate when passing through the rotating guide rack provided in the painting part.

The coating means according to the present invention is provided with a rotation guide rack so as to induce rotation of the body by engaging a gear provided on the outer periphery of the body when the second transfer machine of the loading means is input, and a plurality of nozzles for spraying powder coating material are provided. It is characterized in that it is provided with a sprayer and a cylinder that moves the sprayer forward and backward.

The drying means according to the present invention is made to heat the object with high temperature heat, and at the lower end is further provided with a recovery device for recovering the object dropped from the loading means by vibration and shaking, and the recovery device is rotated by a second motor. The conveyor and the conveyor are provided with a hook for recovering the object dropped by the recovery plate, and a cylinder for raising and lowering the conveyor is provided to operate the conveyor when the object falls to recover the object.

As described, the present invention has the effect of automatically cleaning foreign matter by spraying air over the entire surface of the object to be painted by the cleaning chamber, and the raw material to the entire surface of the object by supplying and spraying the raw material so that the object is rotated. There are various effects such as the effect of being able to paint and the effect of reducing power consumption by immediately discharging objects that have fallen into the drying furnace.

1 is a block diagram showing a flow chart of a powder coating system according to an embodiment of the present invention.
Figure 2 is a view for explaining the structure of the powder coating system according to an embodiment of the present invention.
Figure 3 is a view for explaining the cleaning means in the structure of the powder coating system according to an embodiment of the present invention.
Figure 4 is a view for explaining the loading means in the structure of the powder coating system according to an embodiment of the present invention.
5 is a view for explaining the coating means of the structure of the powder coating system according to an embodiment of the present invention.
Figure 6 is a view for explaining the drying means of the structure of the powder coating system according to an embodiment of the present invention.

Hereinafter, a structure of a powder coating system according to an embodiment of the present invention will be described with reference to the accompanying drawings.

In the following description of the present invention, if it is determined that a detailed description of a related known function or configuration may unnecessarily obscure the subject matter of the present invention, a detailed description thereof will be omitted. In addition, terms to be described later are terms set in consideration of functions in the present invention, and these terms may vary according to the intention or custom of a producer producing a product, and the definitions of terms should be made based on the contents throughout the present specification.

(Example)

As shown in the accompanying drawings, the powder coating system of the present invention includes a washing step (S100) of washing foreign substances present on the surface by seating the object to be powder coated on the washing means 100; A loading step (S110) of winding the object from which the foreign matter has been washed to the first transfer machine 210 and the second transfer machine 220 of the loading means 200; A preheating step (S120) of preheating the surface of the object to a constant temperature by the preheating means 300 to the object being wound and transported by the loading means 200; A painting step (S130) of spraying a powder coating raw material on the object sequentially transferred through the preheating step by the painting means 400 to paint the surface of the object; A drying step (S140) of fusing the coated raw material by heating the object painted in the painting step to a high temperature through a drying means 500; It consists of an unloading step (S150) of separating the object discharged through the drying step from the loading means.

<Cleaning step>

In the washing step (S100) of the present invention, the object to be painted is washed, and when the operator places the object on the upper portion of the washing means 100, the bottom of the object is sprayed from the air nozzle 112 on the table 110. Foreign matter on the cotton is washed away.

In addition, the washing machine 113 provided at the lower end of the table 110 is rotated to the top of the table 110 and cleaned by air spraying the upper and side portions of the object.

<Loading stage>

When the object is washed during the washing step, the lifting cylinder 118 operates to raise the table 110, and the first transporter 210 and the second transporter 220 of the loading means 200 ) Is pulled and fixed to the object, and then the operator lifts it and loads the object to be painted.

<Preheating step>

When the loading is completed as described above is transferred to the preheating means 300 along the rail R, the surface of the object is heat treated at a constant temperature.

<Painting step>

The object heat-treated at a constant temperature as described above is transferred to the painting means 400, and the object wound around the first transfer machine 210 is painted by the coating raw material sprayed from both sides of the painting machine 420, Since the object wound on the second transfer machine 220 is moved while being rotated, painting is simply performed.

<Drying step>

In the painting step, the object, which has been painted, is transported along the rail, and when it is put into the drying means 500, the paint raw material coated on the object by high temperature heat is fused and coated.

At this time, the object falling from the loading means 200 is dropped onto the recovery plate 525, and the dropped object is recovered by the recovery device 520 provided at the lower end to undergo the first painting step.

Hereinafter, a specific technical configuration of the present invention will be described with reference to the accompanying drawings.

As shown in the accompanying drawings, the washing means 100 is made so that the entire table 110 is elevating and descending by the operation of the elevating cylinder 118, and an air supply line inside the table 110 First and second air passages AL1 and AL2 through which air supplied through 111 is moved are provided.

A plurality of air nozzles 112 are provided on the second air cylinder AL2 to inject air to the top of the table, and this structure is provided in the middle of the table.

In addition, the first air passage AL1 is provided on a side of the table, and a supply port 111a is provided at one side of the first air passage AL1.

A washing machine 113 having a plurality of air nozzles 114 inside is provided at the bottom of the table 110, and the washing machine 113 is installed to be interlocked with a driving motor 115 provided at one side to drive the It protrudes to the top of the table by the operation of the motor to inject air.

At this time, a first rack 117 is provided on the inner periphery of the washing machine 113, and a first pinion 116 interlocked with the first rack 117 is provided on the shaft of the drive motor 115.

In addition, at one end of the washing machine 113, a connection port 113a for receiving air when the washing machine is rotated and protruded and connected to the supply port 111a is provided.

Meanwhile, an opening 110a is provided in the recess of the table 110 so that the washing machine 113 is sunrise.

That is, the washing machine 113 is rotated by the operation of the driving motor 115 and is drawn out through the opening 110a, and the connection port 113a of the washing machine 113 is located at the supply port 111a of the table 110, and Air is supplied to the washing machine 113, and the air supplied in this manner is sprayed through the air nozzle 114 to wash the left and right upper portions of the object.

In addition, air is injected from the air nozzle 112 located in the center of the table to clean the bottom of the object.

When the object is washed as described above, the object is loaded by the loading means 200 shown in FIG. 4.

The first transfer machine 210 of the loading means 200 is provided with rollers 216 on both sides of the connecting piece 216a so as to be movable along the rail L, and the arm at the lower end of the connecting piece 216a. 211) and the body 212 are integrally provided, and a rope 213 is provided inside the body 212 so as to be wound or unwound by a motor 215 provided at the side, and the lower end of the body 212 A hook 214 connected to the rope 213 is provided.

And the second transporter 220 is provided with a body 212 having an arm 211 and a gear 218 at the outer periphery at the lower end of the connecting piece 216a, the body passing through the rotating guide rack provided in the painting part It is made to rotate at the time.

On the other hand, the motor 215 is preferably the power is released when the hook 214 is withdrawn, and the motor 215 is operated when the object is lifted and then lifted to perform simple winding.

And it is preferable that loosening is prevented after winding.

5 is a view for explaining the structure of the painting means 400.

The painting means 400 is a rotation guide rack 410 so as to induce rotation of the body by meshing with the gear 218 provided on the outer periphery of the body 212 when the second transfer machine 220 of the loading means 200 is inserted. Is equipped.

And it is provided with a coating machine 420 provided with a plurality of nozzles 421 for spraying the powder coating material, and a cylinder 422 for moving the coating machine 420 before and after.

On the other hand, the object wound on the first transfer machine 210 is transferred without rotation as there is no gear 218 in the body 212, and the painting is made through the painting machines 420 provided on both sides, and the specific painting is It is preferable that the operator is made more.

In addition, the object wound on the second transfer machine 220 is brought in while being rotated because there is a gear 218 in the body 212, and the entire coating is evenly performed through the coating machines 420 provided on both sides.

Figure 6 is a view for explaining the structure of the drying means, the drying means 500 is made to heat the object with high-temperature heat, and at the bottom, a recovery device for recovering the object dropped from the loading means by vibration and shaking (520) is further provided.

At this time, the recovery device 520 is provided with a conveyor 521 rotated by a second motor 523, and a hook 522 for recovering the object dropped by the recovery plate 525 on the conveyor, and the A cylinder 524 for raising and lowering the conveyor is provided to operate the conveyor when the object falls to recover the object.

The recovery device 520 is configured to elevate and descend and operate by raising only when a falling object occurs, thereby preventing damage when the object falls.

On the other hand, it is preferable to form a groove 525a in the direction in which the hook bone 522 is transported in the recovery plate 525.

As described above, specific embodiments of the present invention have been described.

However, the spirit and scope of the present invention is not particularly limited to these specific embodiments, and various modifications and variations are possible within the scope of not changing the subject matter of the present invention. Anyone who has a must understand.

Therefore, the above-described embodiments are provided to completely inform the scope of the invention to those of ordinary skill in the technical field to which the present invention pertains, and should be understood as illustrative and non-limiting in all respects. Is only defined by the scope of the claims.

100: washing means 110: table
112, 114: air nozzle 113: washing machine
113a: connection port 115: drive motor
116: first pinion 117: first leg
118: lifting cylinder 200: loading means
210: first transfer machine 211: arm
212: body 213: rope
215: motor 218: gear
300: preheating means 400: painting means
410: rotation guide rack 420: sprayer
500: drying means 520: recovery device
600: unloading means

Claims (5)

A washing step (S100) of washing foreign substances present on the surface by seating the object to be powder-coated on the washing means (100);
A loading step (S110) of winding the object from which the foreign matter has been washed to the first transfer unit 210 and the second transfer unit 220 of the loading means 200;
A preheating step (S120) of preheating the surface of the object to a constant temperature by the preheating means 300 to the object being wound and transported by the loading means 200;
A painting step (S130) of spraying a powder coating raw material on the object sequentially transferred through the preheating step by the painting means 400 to paint the surface of the object;
A drying step (S140) of fusing the coated raw material by heating the object painted in the painting step to a high temperature through a drying means 500;
Contained as an unloading step (S150) of separating the object discharged through the drying step from the loading means,
The washing means 100 is
The entire table 110 is made to move up and down by the operation of the lifting cylinder 118, and the first and second air supplied through the air supply line 111 are moved inside the table 110. Air passages (AL1) (AL2) are provided, a plurality of air nozzles (112) are provided on the second air passage (AL2) to inject air to the top of the table, and a plurality of air nozzles (112) are provided at the bottom of the table (110). A washing machine 113 equipped with an air nozzle 114 is provided, and the washing machine 113 is installed to be interlocked with a driving motor 115 provided on one side, and protrudes to the top of the table by the operation of the driving motor to remove air. Powder coating system, characterized in that made to spray. delete The method of claim 1,
The first transfer machine 210 of the loading means 200,
Rollers 216 are provided on both sides of the connecting piece 216a so as to be movable along the rail L, and the arm 211 and the body 212 are integrally provided at the lower end of the connecting piece 216a, and the body A rope 213 is provided on the inner side of the 212 so as to be wound or unwound by a motor 215 provided on the side, and a hook 214 connected to the rope 213 is provided at the lower end of the body 212 ,
The second transfer machine 220,
Powder, characterized in that a body 212 having an arm 211 and a gear 218 at the outer periphery is provided at the lower end of the connecting piece 216a, the body being rotated when passing through the rotating guide rack provided in the painting part Painting system. delete The method of claim 1,
The drying means 500 is
It is made to heat the object with high temperature heat, and a recovery device 520 for recovering the object dropped from the loading means by vibration and shaking is further provided at the bottom,
The recovery device 520 is provided with a conveyor 521 rotated by a second motor 523, and a hook 522 for recovering the object dropped by the recovery plate 525 on the conveyor. Powder coating system, characterized in that it is provided with a cylinder (524) for raising and lowering the object to recover the object by operating the conveyor when the object falls.

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