KR20200116564A - Apparatus For Painting Film Shaped Specimen - Google Patents

Abstract

The present invention relates to a film type specimen coating device for producing a film type sample having uniform color by coating a target color on a standard film in order to produce a sample film having the same color as a vehicle, comprising: a sealed box type coating booth in which painting is performed; a spray nozzle installed inside the coating booth; a paint supply unit for supplying colored paint to the spray nozzle; a specimen transfer device for continuously transferring an object to be coated, installed in a caterpillar manner, and allowing a specimen to be coated to pass through the coating booth; and a drying device for drying the specimen that has passed through the coating booth transferred by the specimen transfer device. The coating booth comprises: a specimen passing hole provided on both sides to allow the specimen and a transfer rail of the specimen transfer device to pass through; an opening and closing door provided in the front; an air inlet through which indoor air of a workplace is introduced; an exhaust port installed in a lower portion for discharging internal air to the outside; a spray nozzle for spraying the paint downward on the specimen being transferred; and a nozzle support supporting the spray nozzle so as to adjust the installation height and installation direction of the spray nozzle.

Description

Film-type specimen coating device{Apparatus For Painting Film Shaped Specimen}

The present invention relates to a coating apparatus, and more specifically, a film-type specimen coating for producing a film-type sample having a uniform color by coating a target color on a standard film in order to produce a sample film having the same color as a vehicle. It relates to the device.

Vehicles, especially passenger cars, are released in different colors for each model, and specific models are also distributed in various colors. Therefore, vehicles of a wide variety of colors are widely distributed every year. In many cases, the paint of the vehicle is peeled off due to a contact accident, or sheet metal work has to be done for other reasons. In this case, only the relevant part is newly painted. The information used when only a specific part needs to be painted in accordance with the given basic color is information on the color of the vehicle. This information relates to what paints are formulated and to what extent. In the automobile industry, painting is performed with paint toned according to the color information of the vehicle.

It is the specimen that is used for this painting work. One side of this specimen is painted in the same color as the vehicle color, and the other side describes the type and content of the raw materials used.

The present invention relates to a coating apparatus for mechanically manufacturing this specimen. In the past, since this specimen was manufactured by hand, the color or quality of the specimen was jagged.

Korean Patent Application No. 10-2016-0175528 Korean Patent Application No. 10-2011-0016733

An object of the present invention for the above problems is to provide a coating apparatus for a specimen in the form of a film coated with a vehicle color. More specifically, it is an object of the present invention to provide a film-type specimen coating apparatus that has a uniform coating thickness and color, and can further increase productivity by performing the painting operation by a mechanical method.

The purpose of the above, painting booth; A spray nozzle installed inside the painting booth; A paint supply unit for supplying colored paint to the spray nozzle; A specimen transfer device for continuously transporting an object to be coated, installed in a caterpillar manner, and allowing a specimen to be coated to pass through the painting booth; Including; a drying device for drying the specimen passing through the painting booth transferred by the specimen transfer device;

The painting booth includes a specimen passing hole provided on both sides of the specimen transporting device to pass the specimen and the transport rail; An opening and closing door provided in the front; An air inlet through which air in the workplace is introduced; An exhaust port for discharging the internal air to the outside; A spray nozzle for spraying the paint downward on the specimen being transferred; It is achieved by a film-type specimen coating apparatus comprising a; nozzle support for supporting the spray nozzle so as to adjust the installation height and installation direction of the spray nozzle.

Here, two or more spray nozzles and nozzle supports are installed along the transfer direction of the transfer rail; The spray nozzle may reciprocate left and right along a nozzle transfer table installed to form a right angle with respect to the transfer direction of the specimen, and spray paint onto the specimen during transfer.

According to another feature of the present invention, the specimen transfer device includes a transfer rail; A transfer chain installed along the transfer rail; A roller that is fixedly installed on the transfer chain at intervals along its longitudinal direction, and is supported by the transfer rail to perform rolling; A chain drive unit for driving the transfer chain; It may include; a specimen stand that is fixedly installed at an interval on the transfer chain.

According to another feature of the present invention, the specimen base is a post fixed to the transfer chain so as to be perpendicular to the ground; A support plate installed on the post; It may include; a specimen fixture for fixing the specimen placed on the base plate. Here, the specimen fixture may be a magnet.

According to another feature of the present invention, one main post 67 connected to the transfer chain; An extension post 71 connected to an upper end of the main post so as to be relatively axially rotated by a coupler 69;

Two branch posts 75 for independently supporting two specimens (P, P') as being installed at the upper end of the extension post 71 via a cross bar 73; A tooth 77 fixedly installed on the extension post 71;

By further comprising a rack (79, 81) installed inside the painting booth (1) so as to mesh with the tooth (77);

As the specimens (P, P') are being transported, the teeth (77) are engaged with the racks (79, 81), while the extension post (71) and the specimens (P, P') are It can be rotated around the vertical axis (Z).

According to the present invention, there is provided a coating apparatus capable of producing a specimen having a vehicle color. According to the present invention, since it is possible to paint using an automated continuous coating device, it is possible to obtain a specimen of consistent quality. Since it operates in a continuous or caterpillar type, a coating device for film-type specimens that can greatly improve productivity is provided.

1 is an overall plan configuration diagram of a film-type specimen coating apparatus according to an embodiment of the present invention.
2 is a perspective view of a painting booth of a film-type specimen coating apparatus according to an embodiment of the present invention.
3 is a front configuration diagram of a painting booth of a film-type specimen coating apparatus according to an embodiment of the present invention.
4 is an internal perspective view of a painting booth of a film-type specimen coating apparatus according to an embodiment of the present invention.
5 is a plan view of a painting booth of a film-type specimen coating apparatus according to an embodiment of the present invention.
6 is a block diagram of a specimen transfer device of a film-type specimen coating apparatus according to another embodiment of the present invention.
7 is a front view of a specimen base of a specimen transfer device of a film-type specimen coating apparatus according to another embodiment of the present invention.
8 is a plan view of a coating booth of a film-type specimen coating apparatus according to an embodiment of the present invention.

Hereinafter, specific contents of the present invention will be described in detail with reference to FIGS. 1 to 5 simultaneously. Hereinafter, another embodiment will be described with further reference to the remaining drawings.

The coating apparatus according to the present invention includes a coating booth (1) in which a painting operation is performed, a specimen transfer device (3) for continuously supplying and withdrawing the specimen (P) to the coating booth (1), and a specimen to dry the specimen. It includes a drying device installed in the transfer section.

The painting booth (1) is in the form of a box in which an opening and closing door (5) is installed at the front. It is preferable that the opening and closing door 5 is a transparent window. Inside the painting booth 1, a lighting device having an explosion-proof function is provided.

At the intermediate height of both sides of the painting booth 1, a specimen passage hole 9 is provided by perforating so that the transport rail 7 of the specimen transport device 3 and the specimen P can pass.

The painting booth 1 is provided with air inlets 11 and 13 through which air from the workplace is introduced and an exhaust port 15 for discharging internal air to the outside. Air inlets 11 and 13 are provided in the upper and ceiling of both sides of the painting booth 1, respectively.

Filters 17 and 19 are installed at the air inlets 11 and 13 to remove dust from the incoming air.

The air inlet installed on the ceiling, that is, the ceiling inlet 11 is provided over the entire area of the ceiling. In the ceiling inlet 11, a mesh-shaped filter support 21 is bent in a waveform, and the filter 17 is also installed in a waveform like the filter support 21.

The air inlet provided on the side, that is, the side inlet 13 may be provided in the form of a plurality of perforated holes. Of course, their shapes can be transformed.

At the entrance side of the painting booth 1, a blowing nozzle 22 may be installed to remove dust, etc. that may be stuck on the incoming specimen P. A plurality of blowing nozzles 22 are arranged horizontally and are installed so as to supply wind to the specimen P at a close position.

An exhaust duct 23 is connected to an exhaust port 15 installed on the lower rear side of the painting booth 1. Since negative pressure is applied to the exhaust duct 23 using a blower, the air inside the painting booth 1 can be forcibly exhausted to the outside. Therefore, the painting booth (1) is always kept clean, and it is possible to eliminate the problem that paint particles of different colors used previously remain in the interior space of the painting booth (1).

The spray nozzle 25 is installed inside the painting booth 1 so that paint can be sprayed downward. The paint supply unit supplies the toned paint to the spray nozzle 25. The paint supply unit includes a pump 27 installed next to the painting booth 1, a supply hose 29, a paint bucket 31, and a shelf 33.

Two pumps 27 may be provided as shown, one of which is for supplying the paint to be painted, and the other is to clean the spray nozzle 25 after painting the paint to remove the remains of the painted paint. Can be used by removing. In some cases, both pumps use paints of the same color, but contain ones having different viscosity and supply them individually through different spray nozzles.

Here, two or more spray nozzles 25 and nozzle support 35 supporting the spray nozzle 25 may be installed along the transfer direction of the transfer rail 7. As shown, two spray nozzles 25 and a nozzle support 35 are installed. These are installed at intervals and provide the effect of applying a new one again after painting is completely finished on one specimen (P).

According to an embodiment of the present invention, the first unit injection nozzle 25a and the second unit injection nozzle 25b have different injection positions or injection angles. This is a way to obtain a more uniform coating quality by different spraying conditions. In this respect, the injection amounts of the first unit injection nozzle 25a and the second unit injection nozzle 25b may be set differently from each other. This injection amount can be adjusted using an adjustment means installed in the injection nozzle 25 itself.

The specimen transfer device 3 includes a transfer rail 7, a transfer chain 37 installed on the transfer rail 7, and a transfer chain drive. The transfer rail (7) is for continuously transporting the object to be painted, and is installed in a caterpillar manner and allows the specimen (P), which is the object to be painted, to pass through the painting booth (1). The specimen P, which is the object to be painted, is a synthetic resin film that is in the form of silver foil so that colors can be accurately realized.

The conveying chain 37 is installed to behave in a caterpillar manner along the conveying rail 7, and in particular, the conveying chain 37 is installed lying sideways so that the bending direction is on a horizontal surface. A roller 39 is interposed between the transport chain 37 and the transport rail 7. The rollers 39 are fixedly installed on both sides of the conveying chain 37 at intervals along the longitudinal direction thereof and rolled on the conveying rail. The transfer rail 7 is fixedly installed on the bottom plate of the tunnel 55 to be described later. The chain drive unit for driving the transfer chain 37 may include a drive motor 41 and a sprocket wheel 43 installed on a guide means and a direction change unit.

The specimen stand 45 is fixedly installed at regular intervals along the extending direction of the transport chain 37. According to this embodiment, the specimen base 45 includes a post 47 fixed to the transfer chain 37 so as to be perpendicular to the ground, a base plate 49 installed horizontally on the post 47, and a base plate ( 49) It includes a specimen fixture 51 for fixing the specimen (P) placed on top. The base plate 49 may be installed on the post 47 in a prefabricated manner. It is intended to be able to install the support plate 49 or the object to be painted in other forms depending on the case.

The specimen (P) in the form of a film is placed on this base plate (49). Here, the specimen fixture 51 may be a magnetic body having an elongated and flat bottom surface for convenient hand grasping. The specimen fixture 51 may be installed at four corners of the specimen P. Of course, the part where the specimen fixture 51 is installed will not be painted, and this part is a part that disappears when cutting the specimen P into pieces.

The drying device dries the specimen P that has passed through the painting booth 1 transferred by the specimen transfer device 3. The drying apparatus may be composed of a natural drying unit 53a and a heat drying unit 53b, and is provided in the form of a tunnel 55 that is sealed in all directions. The natural drying unit 53a and the heat drying unit 53b may be divided by a partition plate 54.

The tunnel 55 serves as a means to block adhesion of dust and facilitates management of temperature and the like. The tunnel 55 may be formed over the entire drying line (L). A door 57 for checking or servicing the interior may be provided in the middle of the tunnel 55. The tunnel 55 may be made of a wholly or partially transparent material as needed. The transfer rail 7 extends along this tunnel 55. In the tunnel 55, a vibration generator for applying vibration to the support plate 49 may be installed in order to increase the drying speed. It is also possible to apply vibration by hitting the post 47. By applying vibration, the paint can settle on the specimen more quickly.

Since it takes time to dry, the length of the entire drying line (L) may be 10 to 50 m. In order to install such a long transfer line in a narrow space, a part (K) where the transfer line overlaps can be made. That is, space efficiency can be improved by dividing one tunnel with a wide width by the partition wall 59.

Drying speed can be increased by creating natural wind in the natural drying section 53a, and drying or curing at high temperature can be performed by installing a heater 61 such as an electric heat heater or a far-infrared heater in the heat drying section 53b. The heater 61 may be installed on the bottom of the upper plate of the tunnel 55 to radiate heat to the upper surface of the specimen P. In the heat-drying section 53b, a warmer may be installed to heat the specimen P by supplying warm air to the bottom of the base plate 49.

An exhaust tuck 23' may also be installed in the tunnel 55 of the drying section so that the air inside the tunnel 55 is exhausted to the outside. In addition, an air inlet port for allowing air to be introduced into various places of the tunnel 55 and a filter for purifying the inlet air may be provided. A thermometer 63 may be installed in the tunnel 55 to control the temperature inside the tunnel 55.

As mentioned, the position of the injection nozzle 25 can be adjusted according to the width of the specimen P or the injection distance. The nozzle support 35 supporting the spray nozzle 25 is capable of reciprocating the nozzle transfer table 65 in a direction W2 perpendicular to the transfer direction W1. A known reciprocating device used in various industries can reciprocate the nozzle support 35 at a constant speed.

The specimen (P) is transferred in one direction by the specimen transfer device (3), and the spray nozzle (25) is moved left and right in a direction perpendicular to the transfer direction by the reciprocating transfer device, so the entire area of the specimen can be applied. There will be. The reciprocating speed of the injection nozzle 25 should be adjusted according to the moving speed of the specimen P.

In the section (M) just before entering the painting booth (1), the specimen (P) that has passed through the tunnel (55) is removed from the specimen stand (45) and taken out, and a new specimen is installed on the specimen stand (45). to be. In this section, it is possible to determine whether there is an abnormality in the painting.

In operating the coating apparatus described above, the following method may be used. Each color of the vehicle has its own characteristics, so it may be insufficient with just one or two applications. In this case, it is possible to work while circulating the coating apparatus described above twice. When passing through the painting booth, painting is carried out twice, so if it is cycled twice, a total of four paintings are carried out.

This can be determined by the manager by looking at the quality of the painting. Administrators can record and database paint characteristics for characteristic colors. Other matters related to painting (coating number, spray interval, spray amount, drying time, etc.) can also be converted into a database through trial and error.

In this way, when applying similar colors in the future, it will be possible to perform more rapid and accurate painting work using information about the painting method (coating number, spraying interval, spraying amount, drying time, etc.) from the database. In other words, product standardization can be achieved by manualizing the work method suitable for the color characteristics.

Hereinafter, another embodiment of the present invention will be described with reference to FIGS. 6 to 8. 6 is a configuration diagram of a specimen transfer device of a film-type specimen coating apparatus, FIG. 7 is a front view of a specimen stand, and FIG. 8 is a plan configuration diagram of a painting booth.

This embodiment is an embodiment for further increasing the productivity by doubling the painting speed. The specimen transfer device 3 for applying paints of different colors to two specimens (P, P') at the same time in the painting booth (1). ').

An extension post 71 is installed at an upper end of one main post 67 connected to the transfer chain 37 so as to be relatively axially rotated by a coupler 69. Two branch posts 75 are installed at the upper end of the extension post 71 via the horizontal bar 73. Each of the branch posts 75 extends. Gears 77 are fixedly installed on the extension post 71. And the first rack 79 meshed with this tooth 77 is installed inside the painting booth (1). As the specimens (P, P') are being transported, the teeth (77) are engaged with the first rack (79). It rotates around this vertical axis (Z). By appropriately determining the engagement time, the extension post 71 and the like are rotated at 90°. When they rotate to 90°, as shown in FIG. 8, two specimens (P, P') are arranged to the left and right of the painting booth 1, and painting is carried out in this state. After the painting is finished, the gear 77 is engaged with the second rack 81 so that the extension post 71 is rotated to 90° to return to its original state.

Since paint dust should not be mixed with each other during painting, it would be desirable to have a booth separation wall 81 installed in the spray section rotated by 90°.

According to this configuration, it is possible to simultaneously paint two specimens (P, P') by operating one injection nozzle reciprocating device.

The configuration shown and described above is only a preferred embodiment based on the technical idea of the present invention. Those skilled in the art will be able to implement various modifications based on common technical knowledge, but it should be noted that this may be included in the protection scope of the present invention.

1: Painting booth 3, 3': specimen transfer device
5: opening and closing door 7: transfer rail
9: specimen passing hole 11,13: air inlet
15: exhaust port 17, 19: filter
23,23': exhaust duct 25: injection nozzle
27: pump 31: paint bucket
35: nozzle support 37: transfer chain
39: roller 41: conveyor
43: sprocket wheel 45: specimen support
47: post 49: base plate
51: specimen fixture 53a: natural drying part
53b: heating and drying unit 55: tunnel
59: bulkhead 61: heater
63: thermometer 65: nozzle transfer table
67: main post 69: coupler
71: extension post 73: horizontal bar
75: branch post 77: gear
79,81: 1st and 2nd rack 83: Booth separation wall

Claims (6)

Sealed box-type painting booth in which painting is performed; A spray nozzle installed inside the painting booth; A paint supply unit for supplying colored paint to the spray nozzle; A specimen transfer device for continuously transporting an object to be coated, installed in a caterpillar manner, and allowing a specimen to be coated to pass through the painting booth; And a drying device for drying the specimen that has passed through the painting booth transferred by the specimen transfer device, wherein the painting booth;
A specimen passing hole provided on both sides of the specimen transporting device to pass the specimen and the transport rail; An opening and closing door provided in the front; An air inlet through which air in the workplace is introduced; An exhaust port for discharging internal air to the outside as installed in the lower part; A spray nozzle for spraying the paint downward on the specimen being transferred; A film-type specimen coating apparatus comprising: a nozzle support for supporting the spray nozzle so as to adjust the installation height and installation direction of the spray nozzle.
According to claim 1, The injection nozzle and the nozzle support is installed in two or more along the transport direction of the transport rail;
The spray nozzle is a film-type specimen coating apparatus, characterized in that for spraying paint onto the specimen being transported while reciprocating to the left and right along a nozzle transfer table installed to form a right angle to the transport direction of the specimen.
According to claim 1, The specimen transfer device;
Transfer rail; A transfer chain installed along the transfer rail; A roller fixedly installed at an interval along its longitudinal direction to the transfer chain and supported by the transfer rail; A chain drive unit for driving the transfer chain; Includes; a specimen stand fixedly installed at an interval on the transfer chain;
The specimen base is a post fixed to the transfer chain so as to be perpendicular to the ground; A support plate installed on the post;
A film-type specimen coating apparatus comprising: a specimen fixture made of a magnet body as for fixing the specimen placed on the base plate.
According to claim 1, The drying device may be composed of a natural drying unit to create a natural wind and a heat drying unit using a heater, and is provided in the form of a tunnel sealed in all directions;
An exhaust duct is connected to the tunnel, characterized in that consisting of a configuration configured to exhaust the air inside the tunnel to the outside.
The method of claim 1,
The air inlet installed on the ceiling in the painting booth is provided over the entire area of the ceiling;
A film-type specimen coating apparatus, characterized in that a filter supported by a mesh-shaped filter support is installed on the ceiling of the painting booth.
The method of claim 3,
One main post (67) connected to the transfer chain; An extension post 71 connected to an upper end of the main post so as to be relatively axially rotated by a coupler 69;
Two branch posts 75 for independently supporting two specimens (P, P') as being installed at the upper end of the extension post 71 via a cross bar 73; A tooth 77 fixedly installed on the extension post 71;
By including racks (79, 81) installed inside the painting booth (1) so as to mesh with the teeth (77);
As the specimens (P, P') are being transported, the teeth (77) are engaged with the racks (79, 81), while the extension post (71) and the specimens (P, P') Film-type specimen coating apparatus, characterized in that rotating around the vertical axis (Z).

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