JP2831288B2 - Apparatus for applying strippable paint to painted surfaces of automobiles - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a vehicle to form a coating to a protective film on the coated surface of the strippable paint liquid to the time of transportation or the like of the finished motor vehicle the temporary protection of painted surface of the automobile painting Strippable pane to surface
The present invention relates to a device for applying a coating .

[0002]

2. Description of the Related Art Conventionally, when a completed vehicle is shipped, for example, Japanese Patent Application Laid-Open No.
As described in JP-A-142604, a strippable paint is applied by a roller or a brush or the like along the outer peripheral edge of the area to be protected by hand, and thereafter or before, the area is smaller than the area to be protected. It is known to spray-apply a strippable paint to the area and to provide an over-applied portion in each other's application area.

[0003]

In the prior art, paint dust spreads widely during spray application,
There has been a problem that the area of the overlapped portion where the strippable paint is applied by a roller or a brush or the like becomes large and the cost increases. In addition, dust may be scattered beyond the range of the over-coated portion and adhere to a portion outside the range to be protected, which requires a masking process and a process for inspection and correction, thereby increasing costs. Had. Further, when the strippable paint is applied by a roller or a brush or the like, if the area of the object to be coated is large as in an automobile, the thickness of the protective film becomes uneven due to uneven coating, which causes a problem such as tearing or peeling. Had.

The present invention has been made in view of the above-mentioned problems of the prior art, and an object of the present invention is to prevent a strippable paint from adhering to a portion outside a range to be protected. An object of the present invention is to provide an apparatus for forming a protective film on a painted surface having a uniform thickness of the protective film and high coating efficiency.

[0005]

SUMMARY OF THE INVENTION In order to solve the above problems, according to the present invention, there is provided a frame structure through which a vehicle can pass.
Front and rear movement that is arranged in the structure and can move in the direction of travel of the car
Before the moving direction of the frame structure and the front and rear moving frame structure
Arranged in a square part, movable in a horizontal direction perpendicular to the traveling direction of the automobile, the paint nozzle for discharging the strippable paint on the painted surface of a motor vehicle, back-and-forth movement frame
The paint nozzle is located at the rear of the
From a strippable pane applied to the painted surface of a car
From the rear position of the bets coating position, it is ejected air to motor vehicle painted surface at a predetermined ejection angle with respect to painted surfaces, prior to
Paintable painted on painted car surface
Application of strippable paint on automotive painted surfaces
An air ejection member to widen the range, the back-and-forth movement frame structure,
The vertical movement frame structure makes movement in the height direction of the automobile
The frame structure is provided.

[0006] According to claim 2, assuming claim 1, the air ejection member is Ru provided with an air nozzle for ejecting humidified air immediately after the paint nozzle, the air nozzle for ejecting dehumidified air that is arranged behind the nozzle.

[0007] Claim 3 is based on Claim 1 or 2.
In the opening of the tip of the air nozzle of the air ejector, a number of holes were formed on a straight line .

[0008]

According to the first aspect of the present invention, when the paint nozzle is moved in the horizontal direction perpendicular to the moving direction of the object to be coated, the strippable paint is dropped on the coating surface in a linear manner. A subsequent air ejector ejects air at a predetermined ejection angle to the painted surface in a direction opposite to the traveling direction of the object to be painted, and spreads the strippable paint within a range to be protected. Next, the back and forth moving frame structure in which the paint nozzle and the air ejector are disposed moves in the direction opposite to the moving direction of the object to be coated, and again the paint nozzle moves in the horizontal direction while the strippable paint is linearly applied to the painted surface. The air ejecting body ejects the air in a direction opposite to the advancing direction of the object to be coated and at a predetermined ejection angle with respect to the coating surface, and spreads the air within a range to be protected. By repeating the same operation, the strippable paint is uniformly applied over the entire area to be protected.

[0009] In claim 2, the strippable pay
Immediately after the application of the paint , an air ejector having an air nozzle for ejecting humidified air and an air nozzle for ejecting dehumidified air is provided at the front and rear, so that even if the viscosity of the strippable paint is high or the dry The droppable paint is spread within the area to be protected by the humidified air, and the dehumidified air spreads the strippable paint thinly and promotes drying of the strippable paint.

According to a third aspect of the present invention, a large number of holes formed in a straight line generate an air flow similar to that of the slit holes.
The strippable paint hanging on the painted surface is spread within the area to be protected.

[0011]

Embodiments of the present invention will be described below with reference to the accompanying drawings. Here, FIG. 1 is a painted surface according to the present invention strike
2 is a front view, FIG. 3 is a side view, and FIG. 4 is a stripper pull paint .
Plan view of the vehicle body showing a cement application range, Figure 5 is a perspective view of the air ejection member, FIG. 6 is an explanatory view showing the positional relationship between the coating nozzle and the air ejection member, FIG. 7 is an air dehumidification for humidifying air to the air ejection member FIG. 4 is an explanatory diagram showing a positional relationship with a paint nozzle when a two-stage configuration is used.

[0012] Stripper on painted surface of completed car
The pull paint application device, as shown in FIGS.
A gate-shaped frame structure 2 is formed so that the vehicle body 1 conveyed by a conveyor (not shown) can pass through, and the vehicle body 1 to be protected
A paint nozzle 3 for dropping the strippable paint on the painted surface of the painter, and an air ejector 4 for blowing air to the droppable paint dripped from the paint nozzle 3 to spread it over the area to be protected. In addition, a rectangular coordinate system (X, Y, Z)
Are as shown in FIGS. 1 to 3.

Here, the parts on which the protective film is to be formed on the painted surface of the vehicle body 1 are a hood A, a roof B, a trunk lid C, and the like, as shown in FIG. In addition, as a strippable paint, after forming a coating film (protective film), it has excellent impact resistance, abrasion resistance, water resistance, oil resistance, and easily peels off as a single film when peeling off It is desirable to use a paint that can be taken, for example, a vinyl chloride paint, a vinyl emulsion paint, an aqueous emulsion paint, or a synthetic latex.

The gate-shaped frame structure 2 has four prism frames 5 erected on a floor surface 6, and furthermore, an upper end of the erected prism frame 5 via a mounting member 7 in the traveling direction of the vehicle body 1 ( X
Two horizontal frames 8 in the direction (Y direction) perpendicular to the traveling direction of the vehicle body 1 (Y direction), and four horizontal frames 9 at the upper end of the prism frame 5 and the tip of the horizontal frame 8.
The book is configured horizontally. Further, a horizontal frame 11 is laid horizontally for reinforcement in the X direction via a mounting member 10 below the prism frame 5.

A vertically movable frame structure 13 is movably engaged with the standing prism frame 5 in a vertical direction (Z direction). A vertically moving frame structure 13 is provided with a guide member 14 which is vertically movably engaged with each of the four prism frames 5.
And two frames 15 extending in the X direction at the ends of the guide member 14 and two frames 16 connecting the ends of the frames 15 in the Y direction. A rack 17 is laid on one frame 15, and a rail 18 is laid on the other frame 15.

Accordingly, the vertically moving frame structure 13 is configured to engage with the prism frame 5 and to be movable in the Z direction by driving means and guide means (not shown).

Further, the vertically moving frame structure 13 has X
A forward / backward moving frame structure 20 having a paint nozzle 3 and an air ejecting body 4 movably in the direction is engaged. The front-rear moving frame structure 20 is composed of two front and rear frames 23 having a pinion 21 at one end and a roller 22 at the other end and arranged in the Y direction.
And two rails 24 connecting the ends of the frames 23 in the X direction, and a rail member 25 spanned between the frames 24. Also, on one frame 24,
A motor 27 having a pinion 26 attached to a rotating shaft is fixed.

Therefore, the front-rear moving frame structure 20 moves on the vertical moving frame structure 13 by engaging the pinions 21 and 26 with the rack 17 and engaging the rollers 22 with the rails 18 to operate the motor 27. It is configured to be movable in the X direction.

The paint nozzle 3 is fixed to a nozzle base 30 movable in the Y direction, and is connected to a paint supply device (not shown) for supplying a strippable paint. The nozzle base 30 is self-propelled at a desired speed in the Y direction in FIG. It is configured to be.

The air ejecting body 4 is fixed to one frame 23 and connected to an air supply device (not shown) for supplying air with a hose 34. As shown in FIG. 5, the air ejecting body 4 is composed of three rectangular parallelepiped blocks of a central block 35, a left block 36, and a right block 37, and a large number of air jets are provided on the bottom surface of each block 35, 36, 37. Exit 3
8 are formed on a straight line and in the Z direction. The diameter of the air ejection port 38 is, for example, about 0.6 mm, and the air ejection speed is 25 m / sec.

Since a large number of air outlets 38 are formed on a straight line, the same air flow as a single slit hole can be created. As shown in FIGS. 5 and 6, since the air ejection port 38 is opened substantially at right angles to the painted surface S of the vehicle body 1, each of the blocks 35, 36, 37 has a desired air ejection angle α. A plate member 39 whose mounting angle β is changed in order to adjust the angle to an appropriate angle is provided. By adjusting the mounting angle β of the plate member 39, the angle at which the air F ejected from the air ejection port 38 hits the plate member 39 changes, and the air ejection angle α can be adjusted to a desired angle.

Therefore, the mounting angle β of the plate member 39 is set to 65 ° with respect to the surface of the air ejection body 4 where the air ejection port 38 is open.
If it is more than 55 degrees, the part of the parting will be thin, and if it is less than 55 degrees, splashing is likely to occur.

Further, as shown in FIG. 5, the ejection direction of the air F from the left and right blocks 36 and 37 is changed to the central block 3 as shown in FIG.
The strippable paint is prevented from flowing out of the protection range by being directed inward so as to intersect with the direction in which the air F from 5 is ejected.

When the viscosity of the strippable paint is high or dries quickly, as shown in FIG. 7, a humidifying air nozzle 40 for ejecting the humidifying air W and a dehumidifying air nozzle 41 for ejecting the dehumidifying air D are provided. Is used. Paint surface S by using humidified air W
Is spread evenly and thinly within a range to be protected. Then, by blowing the humidified air W and then the dehumidified air D, the strippable paint P is spread even thinner and the drying of the strippable paint P is promoted.

[0025] or more of body painting surface, which is configured as string
The operation of the apparatus for applying paint for purple paint will be described.
First, the vehicle body 1 as a painted vehicle is conveyed by a conveyor (not shown), and only the hood A stops at a position where the hood A overlaps the vertical frame structure 13. Then, the vertically moving frame structure 13 including the front and rear moving frame structure 20 previously located at the rearmost portion in the traveling direction of the vehicle body 1 is lowered from the uppermost position which is the original position by the driving means and the like, and the paint nozzle 3 Stop at a height that maintains a predetermined distance from the front end.

At this time, the paint nozzle 3 is located at the right end of the vehicle body 1 as an original position. Then, as shown in FIG. 6, the paint nozzle 3 drips a predetermined discharge amount of the strippable paint P along the front end of the hood A at a predetermined speed, and as shown by an arrow in FIG. hood
The hood A moves to the left end of the hood A in the Y direction relative to A. Next, the longitudinal frame structure 20 is
By the operation of 7, the vehicle body 1 moves by a predetermined distance in the direction opposite to the traveling direction.

Simultaneously with the movement of the forward and backward moving frame structure 20, the air ejecting body 4 generates air F as shown in FIGS.
At a predetermined air ejection angle α to the painted surface S. As shown in FIG. 6, the air ejector 4
At the rear of the direction of travel indicated by the arrow
At a predetermined interval from the rear of the paint nozzle 3 in the traveling direction.
Follows and drips along the front end of hood A to apply
The preceding strippable paint P is spread within the protective film formation range. On the other hand, the paint nozzle 3 moves to the right end of the hood A in the Y direction at a predetermined speed while dripping the strippable paint P from the left end of the hood A.
Next, the front and rear moving frame structure 20 is moved again by a predetermined distance in the direction opposite to the traveling direction of the vehicle body 1 by the operation of the motor 27.

At the same time as the forward / backward movement frame structure 20 is moved again, air F as shown in FIGS. 5 and 6 is jetted from the air jetting body 4 to the coating surface S at a predetermined air jetting angle α, and the hood A Of the strippable paint P that has flowed down into the protective film forming range. When the above operation is repeated and the strippable paint P has spread over the entire protective film forming range of the hood A, the discharge of the strippable paint P from the paint nozzle 3 is stopped. At the same time, the jetting of the air F from the air jetting body 4 is stopped, and the jetting direction of the air F is changed so that the air F does not hit the protective film forming range.

When the strippable paint applied to the hood A dries, a thin and uniform strippable paint
A protective film made of paint is formed on the entire painted surface of the hood A.

Further, if the viscosity of the strippable paint is high, or if the drying rate is faster unevenness and tear of the strippable paint is produced, as shown in FIG. 7, the coating material nozzle 3 of strippable paint preceding Or
After the application, the humidified air W
Is jetted from the humidified air nozzle 40 to the coating surface S at a predetermined air jetting angle α so that the strippable paint P sufficiently spreads within the protective film forming range. And after the strippable paint P spreads with the humidification air W,
Dehumidification air D can be blown from the dehumidification air nozzle 41 to promote drying.

Further, when the parting-out portion is restricted, the roller (width 100 mm) is formed along the outer peripheral edge of the area to be protected.
mm) or a brush (50 mm in width) to apply a strippable paint, and provide an overcoating portion with the coating film by the protective film forming apparatus according to the present invention to clean the parting-off portion.

Next, when the application to the hood A is completed, the vertically moving frame structure 13 once rises to the uppermost part,
The vehicle body 1 is advanced by the conveyor to a position where the roof B overlaps the vertically movable frame structure 13. Then, the vertically moving frame structure 13 is lowered from the uppermost position which is the original position by the driving means or the like, and the front and rear moving frame structure 20 is moved.
Moves in the traveling direction of the vehicle body 1, and the paint nozzle 3
Stop at a height that maintains a predetermined distance from the front end of

At this time, the paint nozzle 3 is located at the right end of the vehicle body 1 as an original position. Then, as in the case of the hood A, the paint nozzle 3 moves to the left end of the roof B in the Y direction at a predetermined speed while dripping a predetermined discharge amount of the strippable paint along the front end of the roof B. . Next, the longitudinal frame structure 20 is
, The vehicle body 1 is moved by a predetermined distance in the direction opposite to the traveling direction.

At the same time as the movement of the longitudinal frame structure 20, as in the case of the hood A, air F as shown in FIGS. The strippable paint P ejected by α and drips along the front end of the roof B is spread within the protective film forming range.

Next, when the application to the roof B is completed, the vertically moving frame structure 13 once rises to the uppermost portion,
The vehicle body 1 is advanced by the conveyor to a position where only the trunk lid C overlaps the vertical frame structure 13. Then, the vertically moving frame structure 13 is lowered from the uppermost position which is the original position by the driving means and the like, the front and rear moving frame structure 20 is moved in the traveling direction of the vehicle body 1, and the paint nozzle 3 is moved to the front end of the trunk lid C. Stop at a height that maintains a predetermined distance from the part.

A protective film of strippable paint is formed on the trunk lid C in the same manner as the hood A and the roof B by the paint nozzle 3 and the air ejector 4. When the application to the trunk lid C is completed, the vertically movable frame structure 13 returns to the uppermost position, which is the original position, and the vehicle body 1 is discharged from the protective film forming apparatus by a conveyor.

[0037]

As described above, according to the present invention, the contract
Claim 1 provides that the vehicle is mounted on a frame structure through which the vehicle can pass.
Front and rear frame structure that can be moved in the
Structure and the front and rear frame structure
In the horizontal direction perpendicular to the direction of travel of the car.
It is movable and can be stripped on the painted surface of the automobile.
Paint nozzle for discharging ink and frame structure
Is located in the rear part of the moving direction of the
Position of the strippable paint applied to the painted surface
From the rear of the device at a predetermined ejection angle with respect to the painted surface.
Air is sprayed onto the painted surface of the car,
Self-cleaning with strippable paint applied to the painted surface
Extending the range of strippable paint application on the vehicle paint surface
The air ejector and the frame structure
Vertical frame structure to be moved in the vertical direction.
Since it is prepared for the structure , dust of the strippable paint is not generated , so that the strippable paint does not adhere outside the area to be protected, and the masking process and inspection / inspection
Since a process for correction is not required, the work efficiency and the coating efficiency can be improved, and the protective film can be formed, so that the protective film formation can be automated. In particular, the present invention is a method of applying a paint nozzle to a strippable paint,
Over the prior coating of the nozzle, the jet of air by subsequent air ejection member, prior coated strippable paint coated surface is wide in painting the surface in a subsequent air jet
Gerare is uniformly applied, uneven strike by coating unevenness
Ripple pull paint can prevent tearing and peeling due to the protective film.

[0038] In claim 2, the strippable pay
Air nozzle that blows out humidified air immediately after application
And front and rear air nozzles for blowing out dehumidified air.
Since the ejector is provided, when the strippable paint has a high viscosity and dries quickly, the humidified air can be used to uniformly and thinly spread the strippable paint. Furthermore, by spraying dehumidifying air after spraying humidified air, the strippable paint can be spread more thinly and dried quickly.

According to the third aspect of the present invention, the opening of the tip end of the air nozzle of the air ejecting body has a large number of holes formed in a straight line. Therefore, a large number of air ejecting ports of the air ejecting body are formed in a straight line. As a result, the same air flow as a single slit hole can be created, and the strength as an air ejecting body can be increased as compared with the case where a single slit hole is formed.

[Brief description of the drawings]

FIG. 1 shows a strippable pay of a painted surface of a vehicle body according to the present invention.
Plan view of coating equipment

FIG. 2 is a strippable pay of a painted surface of a vehicle body according to the present invention.
Front view of the coating device

FIG. 3 is a strippable pay of a painted surface of a vehicle body according to the present invention.
Side view of the coating device

FIG. 4 is a plan view of the vehicle body showing an application range of the strippable paint .

FIG. 5 is a perspective view of an air ejector.

FIG. 6 is an explanatory diagram showing a positional relationship between a paint nozzle and an air ejector.

FIG. 7 is an explanatory diagram showing a positional relationship between paint nozzles when an air ejector has a two-stage configuration for humidifying air and dehumidifying air.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Body, 2 ... Gate type frame structure, 3 ... Paint nozzle, 4, 42 ... Air ejection body, 5 ... Prismatic frame, 6 ... Floor surface, 13 ... Vertical movement frame structure, 17 ... Rack, 18
… Rail, 20… front and back moving frame structure, 21, 26 ...
Pinion, 22: roller, 25: rail member, 27: motor, 30: nozzle base, 35: central block, 36
... left block, 37 ... right block, 38 ... air outlet, 39 ... plate member, 40 ... humidification air nozzle, 41 ... dehumidification air nozzle, A ... hood, B ... roof, C ... trunk lid, P ... stripper Bull paint.

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-4-197466 (JP, A) JP-A-59-179176 (JP, A) JP-A-1-99669 (JP, A) 142604 (JP, A) JP-A 5-28461 (JP, U) JP-A 62-13570 (JP, U) JP-A 1-95284 (JP, U) JP-A 47-20950 (JP, Y1) (58) Fields investigated (Int. Cl. ⁶ , DB name) B05C 7/00-21/00 B05B 13/00-13/06 B05D 3/00 WPI (DIALOG)

Claims (3)

(57) [Claims] 1. A vehicle having a frame structure through which a vehicle can pass.
A longitudinal frame that can be moved in the direction of travel of the vehicle.
A structure and a front part in the moving direction of the longitudinal frame structure.
A paint nozzle that is movable in a horizontal direction perpendicular to the traveling direction of the vehicle and that discharges strippable paint to the painting surface of the vehicle; and a paint nozzle that is disposed at a rear portion in the movement direction of the longitudinal frame structure.
The spray applied from the paint nozzle to the painted surface of the automobile
Paint from the position behind the application position of the trippable paint
Is ejected air to motor vehicle painted surface at a predetermined ejection angle with respect to the surface, it was applied to the preceding automobile paint surface scan
Stripping automotive painted surfaces with trippable paint
An air ejection member to widen the preppable paint application range, move the back and forth movement frame structure, the height direction of the automobile
Bei the vertical movement frame structure makes the frame structure
For example was, the stripper to automotive paint surface, characterized in that the Burupe
Equipment to apply int . 2. The air ejecting body includes an air nozzle for ejecting humidified air immediately after a paint nozzle , and an air nozzle disposed behind the nozzle.
2. The vehicle according to claim 1, further comprising an air nozzle for ejecting the dehumidified air.
Equipment to do . 3. The vehicle according to claim 1, wherein the opening of the air nozzle at the tip of the air ejector has a large number of holes formed in a straight line .
Device .