JPH11165103A - Coating device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To apply a coating such as a protecting coat or the like to an object intended for coating such as a vehicle bumper or the like. SOLUTION: This coating device is operated to apply a coating such as a protecting coat to an object 1 intended for coating to a vehicle bumper or the like. In this case, the device comprises a machine frame 10 positioned in proximity to the lateral side of the object 1, a flat plate-like lift table 20 extending across almost the entire length of the object 1, a movable holder 40 for a spray gun 30 which is disposed, in a freely movable manner, to the side of the object 1 on the lift table 20 and holds the spray gun 30 and a guide plate 50 having a guide sliding part 50a which is mounted to the opposite side to the side of the object 1 on the lift table 20 and having a moving track of the movable holder 40 for the spray gun 30 corresponding to the coat profile to the object 1. Thus it is possible to simply and rapidly apply the coating to the object 1 by moving the movable holder 40 for the spray gun 30 while sliding the holder 40 on the guide sliding part 50a of the guide plate 50 to drive the spray gun 30.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a coating apparatus for coating an object such as a vehicle bumper with a paint such as a protective film.

In the case of a vehicle such as a passenger car, a sheet is attached or a paint is applied so that a protective film is not discolored while being shipped from a factory and distributed to a terminal dealer. Such provision is widely performed. For example, in the case of a vehicle bumper, when exposed to sunlight or the like during distribution, problems such as fading of the original paint color and loss of gloss are likely to occur, and the tendency of fading is particularly remarkable on the upper surface side. Appears in For this reason, conventionally,
In this vehicle bumper portion, an operator manually applied a paint for a protective film using a painting roller or a brush, mainly on the upper surface side of the vehicle bumper.

[0003]

However, in the case of manual painting, there are the following problems. (1) First, the shape of the upper surface of the vehicle bumper is often largely inwardly curved as a whole, and the curved surface is usually rounded even when hung on the front side. Was quite complicated and workability was bad.

(2) In addition, it is difficult to uniformly apply a coating such as a protective coating to all the coated surfaces, and the quality tends to vary.

(3) Furthermore, it is difficult to apply the paint only on the upper surface side of a vehicle bumper having a complicated shape, and it often protrudes into unnecessary portions, and from this aspect, quality variation cannot be avoided. there were.

(4) Then, painting by a painting robot is conceivable, but in this case, there is a problem that the equipment cost increases and the cost increases.

The present invention has been made in view of such a conventional situation, and an object of the present invention is to provide a coating apparatus which can apply a coating quickly and uniformly with a simple structure.

[0008]

According to a first aspect of the present invention, there is provided a coating apparatus for coating an object such as a vehicle bumper with a paint such as a protective coating, wherein the apparatus is provided near a side of the object. Frame, a vertically movable table mounted on the machine frame so as to be vertically movable, and extending over substantially the entire length of the object, and the object to be mounted on the elevating table. A movable holder for the coating gun, which is mounted movably to the side and on which the coating gun is installed, and a movable holder for the coating gun, which is installed on the lifting table near the side opposite to the object side. A moving path of the guide plate having a guide sliding portion corresponding to the shape of the painted surface of the object.

According to a second aspect of the present invention, the movable holder for the coating gun includes a holder frame plate having a rotating roller at least on a bottom surface side, and two appropriately spaced portions of the holder frame plate and the coating gun. 2. The coating apparatus according to claim 1, wherein the parts are connected by connecting means having a link function so that the spray angle of a coating nozzle of the coating gun can be adjusted.

According to a third aspect of the present invention, there is provided the coating apparatus according to the first or second aspect, wherein wheels such as casters are provided on the bottom side of the machine frame so as to be movable.

According to a fourth aspect of the present invention, a movable positioning stopper is provided on the side of the object frame of the machine frame so as to contact the object. It is in the coating equipment described.

[0012]

1 to 5 show an embodiment of a coating apparatus according to the present invention. In the figure, 1
Is a target object such as a bumper of the vehicle 2 (hereinafter simply referred to as a bumper), 10 is a machine frame, 20 is an elevating table,
30 is a coating gun, 40 is a movable holder for the coating gun, 50 is a guide plate, 60 is a fixture for the machine frame 10, 7
Reference numeral 0 denotes a positioning stopper for the machine frame 10.

The shape of the machine frame 10 is not particularly limited, but in this embodiment, vertical rectangular frames 12, 12 are erected at both ends of a rectangular frame 11 on the bottom side, and the vertical rectangular frames 12 are provided. An erect frame 13 is provided between the front and rear and intermediate portions of the upper ends 12 and 12, and wheels 14 such as casters are attached to the four corner bottom surfaces of the rectangular frame 11 on the bottom surface. On the outside of the rectangular frame 11 in the longitudinal direction, fixtures 60 and 6 whose fixed legs 62 move up and down by operation of a lever 61.
0 is attached. Therefore, the operator can easily move the machine frame 10 by pressing a part of the machine frame 10 or the like, and when the worker reaches the optimum position on the bumper 1 side of the vehicle 2, the fixing tools 60, 60 are moved. By operating the lever, the fixed leg 62 is grounded, and the machine frame 10 can be fixed.

As is clear from FIGS. 2 and 3, the elevating table 20 has a length extending substantially over the entire length of the bumper 1 and has a shape adapted to the shape of the bumper.
It is made of a flat translucent resin plate or the like having a slightly concave curved portion 20a on the inside thereof. The size and shape of the bumper vary greatly depending on the type of vehicle.

The elevating table 20 is provided with a female member such as a nut fixed to a hole formed in the upper and lower end portions of the vertical rectangular frames 12 and 12 and the central portion of the center frame 13 of the three. The lifting and lowering screw shaft 22 which is screwed through the screw member 21 is mounted and held on the head. As shown in FIG. 6, a flange 23 is provided on the head of the screw shaft 22, and a tip of a tool 100 such as a screwdriver is fitted into a central portion of the upper surface of the flange 23. An engaging portion 23a such as a screw groove is provided. For this reason, the operator removes the tip of the tool 100 from the hole 24 (a hole that penetrates the portion where the guide plate 50 overlaps the guide plate 50) at a position corresponding to the screw shaft portion of the lifting table 20. When the screw shaft 22 is inserted and rotated, the height H of the lifting table 20 from the machine frame 10 can be freely adjusted according to the height of the bumper 1 as shown in FIG. .

At this time, as is apparent from FIG. 4, a ring guide 25 is previously attached to the bottom surface of the elevating table 20 so that the flange portion 23 of the screw shaft 22 can be fitted therein. Can be easily positioned. After the height is adjusted, the lifting table 20 is fixed to the machine frame 10 by a lock member 26 such as a lock bolt or a nut so that there is no careless inclination or drop. Has become.

As shown in FIGS. 3 and 4, the guide plate 50 is mounted on the elevating table 20 on the side opposite to the bumper 1 side by a separating member 51 and fixing members 52 such as bolts and nuts. ing. The guide plate 50 is also made of a flat translucent resin plate or the like, like the elevating table 20. Inside the bumper 1, the movement locus of the movable holder 40 for the coating gun corresponds to the painted surface shape of the bumper. As a result, it is necessary to provide the guide sliding portion 50a having a shape exactly corresponding to the shape of the coating surface on the bumper side. Since the guide sliding portion 50a greatly varies depending on the vehicle type, it is preferable to prepare various types of guide plates 50 in advance.

The above-mentioned coating gun 30 has a grip 31 and a coating nozzle 33 at the tip side of the main body portion 32. When the spraying distance is about 100 mm, the spraying gun has a performance that hardly widens the spraying range. Shall be used.

The movable holder 40 for the coating gun on which the coating gun 30 is installed has its back side (the side opposite to the bumper 1 side) slidably contacting the guide sliding portion 50a of the guide plate 50, and 20, the trajectory of the spray coating surface from the coating nozzle 33 of the coating gun 30 is
This is to correspond to the painted surface shape which is just the upper surface side of the bumper.

For this reason, in this embodiment, the holder main body is
As is apparent from FIG.
1 and a rotating roller 42 such as a ball caster is provided on the bottom surface thereof, and the sliding contact with the guide sliding portion 50a of the guide plate 50 is also performed on the rear surface thereof. A rotating roller 43 such as a ball caster is provided. As the rotary roller 43 on the back side, a roller having a built-in elastic body such as a spring may be used to make the contact smoother.

In the case of the coating gun 30 installed on the coating gun movable holder 40, the spray angle of the coating nozzle 33 is
Since it is preferable to be able to adjust the coating surface to a certain extent with respect to the coating surface on the bumper 1 side, in this example, the front inner surface of the holder frame plate 41 and the standing rear surface side, and the tip of the main body 32 of the coating gun 30. Connecting means 41 each having a link function between the two sides of the grip 31 and the end of the grip 31.
At 0,420, the spray angle of the coating nozzle 33 can be adjusted.

The connecting means 410 having a link function between the front inner surface of the holder frame plate 41 and the tip end of the main body portion 32 of the coating gun 30 includes, for example, two hinges 41.
1, 412 and a connecting piece 413, so that a link function of a certain size can be obtained as a whole.

On the other hand, the connecting means 420 having a link function between the standing rear side of the holder frame plate 41 and the end of the grip 31 of the coating gun 30 is, for example, a connecting piece 421 fixed to the grip 31 side. And one interlocking hinge 430. This interlocking hinge 430 is, for example, as shown in FIGS. 7 and 8, and has two hinge portions 431 and 432 on the left and right sides. A plurality of arc-shaped link pieces 434a, 43
4b. More specifically, one end of the link piece 434a is connected to the hinge 43 by the shaft pin 435.
Along with being attached to the arc-shaped long hole 431a of the side plate 1,
The other end is attached to the inner base of the other hinge part 432 by a shaft pin 436, while one end of the link piece 434 b is attached to the arc-shaped long hole 432 a of the side plate of the hinge part 432 by a shaft pin 437. And the other end is a shaft pin 43
8, the other hinge portion 431 is attached to the inner base portion. With this configuration, the left and right hinge portions 43
As shown by a chain line in FIG. 8, 1,432 can be closed at approximately 90 ° on the bottom surface side.

This hinge 430 and the above-mentioned two hinges 41
The combination of 1,412 makes it possible to freely adjust the spray angle α of the coating nozzle 33 to about 15 ° to 45 °.

As shown in FIGS. 1 and 9, the positioning stopper 70 comprises, for example, a relatively long screw shaft 71 and a contact head 72 provided at one end thereof and made of an elastic material such as hard rubber. The screw shaft 71 is provided with female screw holes 74a, 74a of holder blocks 74, 74 which are vertically movably mounted on two stopper holders 73, 73 suspended from the upper end of the machine frame 10.
The holder blocks 74, 74 are fixed at appropriate positions of the stopper holders 73, 73 by, for example, pinned fixing screws 75, 75. Therefore, if the contact head 72 and the like are rotated, the stopper 70 can be easily moved forward and backward, and if the fixing position of the holder blocks 74, 74 is changed,
Its height can be easily adjusted. The stopper 70 is connected to the machine frame 10 as shown in FIG.
May be provided at about two places appropriately separated from each other. The stopper 70 allows the coating nozzle 33 of the coating gun 30 to be easily and quickly positioned at the optimum position simply by making the contact head 72 contact the bumper 1 side. At the same time, it is possible to prevent inadvertent contact of the device body with the bumper 1 or the like.

In order to cover the upper surface side portion of the bumper 1 of the vehicle 2 with the coating device of the present invention as described above, the coating of the protective coating may be performed as follows. First, the operator moves the vehicle 2 toward the bumper 1 by pressing the machine frame 10 or the like. Here, this vehicle 2
However, in the case of the same model as that used in the previous use, the height of the lifting table 20 is adjusted, the guide plate 50 is replaced, the injection angle α of the coating nozzle 33 of the coating gun 30 is adjusted, and the positioning position of the positioning stopper 70 is set. The preparation for painting is completed only by bringing the contact head 72 of the positioning stopper 70 into contact with the bumper 1 without any adjustment of the position. The fixing in this state is performed by the fixing tools 60, 60.
This operation is performed with the fixed leg 62 grounded by the lever operation described above.

In the above state, the coating gun movable holder 40 on which the coating gun 30 is installed is placed on one end of the elevating table 20, and its back side is brought into contact with the guide sliding portion 50 a of the guide plate 50. While pushing the injection start button 34 of the coating gun 30, it is moved to the other end of the lifting table 20.

Then, the movement locus of the movable holder 40 for the coating gun is determined by the guide sliding portion 50a of the guide plate 50.
As a result, the paint gun 30
The spray trajectory of the paint by the paint nozzle 33 conforms to the paint surface shape on the upper surface side of the bumper, and the protective film is applied only to the target portion.

As shown in FIG. 4, this coating gun 30
When the injection distance is set to about 100 mm, the injection range hardly expands, so that an extremely clean protective coating can be obtained without protruding into unnecessary portions. Also,
If the moving speed of the coating gun movable holder 40 is a constant speed, a uniform protective coating can be obtained over the entire length of the coating surface.
In order to help the moving speed to be constant, for example, a light emitting body 80 such as an LED that sequentially emits light is provided at equal intervals near the guide sliding portion 50a of the guide plate 50, and the light emission of the light emitting body 80 is used as a guide. It is also possible to move the movable holder 40 for the coating gun.

When the painting vehicle 2 is replaced, the height of the elevating table 20 is adjusted, the guide plate 50 is replaced, the injection angle α of the painting nozzle 33 of the painting gun 30 is adjusted according to the type of the vehicle. Needless to say, it is necessary to appropriately adjust the positioning position of the positioning stopper 70 and the like.

Also, in the above embodiment, the object is a bumper of a vehicle. However, the present invention is not limited to this. Of course, other parts of the vehicle may be painted. It can also be applied to articles.

[0032]

As is clear from the above description, the coating apparatus according to the present invention has the following excellent effects. (1) First, although it is manual work, it is only necessary to move the movable holder for the coating gun while abutting the guide sliding portion of the guide plate. Significant improvement in workability can be obtained. (2) Also, since the guide sliding portion of the guide plate is formed in advance in accordance with the shape of the target object such as a bumper, even if the painted surface shape is complicated, it may protrude into unnecessary portions. And can be applied neatly, quickly and easily. (3) Further, if the moving speed of the movable holder for the coating gun is set to a constant speed, a uniform coating surface can be easily obtained, and the reliability of quality is greatly improved. (4) Needless to say, since there is no protrusion on unnecessary portions as described above and the coating can be performed uniformly, it is possible to reduce a relatively expensive protective coating material. (5) Further, since it is relatively simple in structure, it is possible to provide an extremely inexpensive as compared with a painting robot or the like. (6) Furthermore, the lifting table and the guide plate can be easily removed, and if various types of vehicles corresponding to various types of vehicles are prepared in advance, it is possible to quickly respond to a change in the type of vehicle. , High convenience is obtained.

[Brief description of the drawings]

FIG. 1 is a side view showing an example of a coating apparatus according to the present invention.

FIG. 2 is a rear view showing an example of the coating apparatus according to the present invention in a state where a movable holder for the coating gun on which the coating gun is installed is removed.

FIG. 3 is a plan view showing an example of a coating apparatus according to the present invention.

FIG. 4 is an enlarged side view showing a movable holder for the coating gun in which the coating gun is installed in the coating apparatus according to the present invention.

FIG. 5 is an enlarged plan view showing a movable part for the coating gun in which the coating gun is installed in the coating apparatus according to the present invention.

FIG. 6 is an explanatory view showing a screw shaft for elevating and lowering for adjusting the height of the elevating table in the coating apparatus according to the present invention.

FIG. 7 is a perspective view showing an example of a connecting means having a link function for a coating gun in the coating apparatus according to the present invention.

FIG. 8 is a side view of the connecting means of FIG. 7;

FIG. 9 is a partial cross-sectional plan view showing a mounting state of a positioning stopper in the coating apparatus according to the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Target object (bumper) 2 Vehicle 10 Machine frame 14 Wheel 20 Elevating table 30 Painting gun 40 Movable holder for painting gun 41 Holder frame plate 42 Rotary roller 410, 420 Connecting means having a link function 50 Guide plate 50a Guide sliding Part 60 Fixture of machine frame 70 Positioning stopper α Spray angle of coating nozzle

Claims (4)

[Claims] 1. A coating apparatus for coating an object such as a vehicle bumper with a paint such as a protective coating, comprising: a machine frame positioned close to a side of the object; and a machine frame. A vertically movable table, which is vertically movable and extends over substantially the entire length of the object, and is movably mounted near the object on the elevating table; The movable holder for the coating gun on which the gun is installed, and the moving trajectory of the movable holder for the coating gun, which is installed on a side opposite to the object side on the elevating table, has a coating surface shape of the object. And a guide plate having a corresponding guide sliding portion. 2. The coating gun movable holder includes a holder frame plate having a rotating roller at least on a bottom surface side.
Two portions of the holder frame plate which are appropriately separated from each other and two portions of the coating gun are connected by connecting means having a link function, so that the spray angle of a coating nozzle of the coating gun can be adjusted. The coating device according to claim 1. 3. The coating apparatus according to claim 1, wherein wheels such as casters are provided on the bottom side of the machine frame so as to be movable. 4. The coating apparatus according to claim 1, further comprising a positioning stopper which is provided on said object side of said machine frame and is capable of moving back and forth in contact with said object.