JPH02263997A - Coating device - Google Patents

Abstract

PURPOSE:To reduce the length of the process and to improve coating efficiency by making a hanger ascending and descending on coating equipment self-travel along a guide rail and conveying a body to be coated while allowing the longitudinal axis of the body to orthogonally cross the guide rail. CONSTITUTION:The coating equipment is formed by plural coating devices 11-15, the guide rail 16 laid over the devices, a traveling power 200 hung from the guide rail, a means 201 for holding the body 10 to be coated and a means for lifting and oscillating the body 10. The holding means 201 is held so that the longitudinal axis of the body 10 orthogonally crosses the guide rail 16. Meanwhile, the width of the device needing a long coating time in the coating line direction is made larger than those of the other devices in the coating line direction.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a coating processing apparatus applied to coating the bodies of automobiles and the like.

[Conventional technology]

FIG. 7 shows a conventional coating treatment apparatus that performs pretreatment.

In the figure, a conveying wire 1 is stretched along a coating line, and is moved to the left at appropriate times by a driving means (not shown).

The hanger 2 includes a hanging wire 2a whose upper end is connected to the conveying wire 1, and a holder 2b suspended by the wire 2a.

The holder 2b holds the body 3 of the automobile, and the longitudinal axis of the body 3 is aligned with the conveying wire 1.
It is positioned in an orientation that follows.

When the body 3 is moved above the dipping tank 4 by driving the wire 1, a lifting means (not shown) provided on the hanger 2 is activated. As a result, the hanging wire 2b is let out and the body 3 is immersed in the tank 4A, where water washing, degreasing, or chemical conversion treatment is performed.

Next, the body 3 is raised and then moved to the spray booth 5A. Then, spray washing is performed in this spray booth.

Thereafter, similar processing is performed in the immersion tank 4B and the spray booth 5B.

Note that the above-mentioned conveyance method for the body 3 is called a single-tank tact method.

[Problem to be solved by the invention]

In the conventional painting apparatus, since the longitudinal axis (longitudinal axis) of the body 3 is along the conveying wire 1,
The widths of the immersion tank 4 and the spray booth 5 must be set large in the direction in which they are disposed (horizontal direction in FIG. 6), which increases the length of the process.

For example, if the processing time in tank 4B is the longest,
Since the bodies from other processes are not carried out until the processing time has elapsed, the processing efficiency is low.

SUMMARY OF THE INVENTION In view of these conventional problems, an object of the present invention is to provide a coating processing apparatus that can shorten process length and improve processing efficiency.

[Means to solve the problem]

A paint treatment apparatus according to the present invention includes: a plurality of paint treatment equipment arranged along a painting line; a guide rail disposed above the paint treatment equipment along the painting line;
A holding means which is movably suspended from the guide rail and which holds the object to be coated in such a manner that the longitudinal axis of the object to be coated is orthogonal to the guide rail, and a holding means for holding the object to be coated in such a manner that the longitudinal axis of the object to be coated is orthogonal to the guide rail; and a self-propelled hanger equipped with means for raising, lowering, and swinging the object to be coated, and of the painting processing equipment, the width in the painting line direction of the equipment that takes a long time is equal to that of the other equipment. The width is set larger than the width in the direction of the painting line.

[Effect]

The hanger moves by itself along the guide rail. The object to be painted is transported in such a manner that the longitudinal axis of the object to be painted is orthogonal to the guide rail.

〔Example〕

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 conceptually shows an embodiment of a coating processing apparatus according to the present invention.

This embodiment is applied to the pretreatment of an automobile body 10, which is an object to be painted, and the pretreatment equipment, which is a spray tank 11, a dipping tank 12, a dipping tank 13, a dipping tank 14, and a spray tank 15, are used in the painting line. They are arranged sequentially along the

A guide rail 16 is disposed above each of the Joki installations (ii11 to 15) along the painting line.A self-propelled hanger 20 is suspended from the guide rail 16.

Hereinafter, the structure of this hanger 20 will be explained with reference to FIGS. 3 and 4, which are a front view and a side view of the hanger.

As shown in FIG. 3, the handle 20 is composed of a moving vehicle 200 and a holder 201.

The mobile vehicle 200 has an upper frame 203 and a lower frame 204 connected by two rods 202, and arms 205 are protruded from the left and right sides of the upper surface of the upper frame 203, respectively.

Each arm 205 is provided with a wheel 206 on the top that contacts the upper surface of the guide rail 16, and one arm 205 is attached with a motor 207 for driving the wheel 206.

As shown in FIG. 4, a pair of winches 208 are attached to the lower surface of the upper frame 203.

The tips of the wires 209 wound around these winches 208 are led out from the front center and rear center of the lower frame 204 via pulleys 210, 211, and 212, respectively, to the lower surface side of the frame.

The holder 201 includes a support frame 213 and four rods 214 whose upper ends are attached to the squares of the support frame 213, which are arranged side by side at intervals in the front-rear direction (direction perpendicular to the plane of the paper in FIG. 3). Two wood 214
A pair of body mounting tables 215 are installed between the body mounting tables 215.

The upper end of each rod 214 is aligned with the axis j! parallel to the guide rail 16. It is pivoted so that it can rotate around 1,
Further, the stand 215 is also pivoted so as to be rotatable about the same axis 12.

The handle 20 configured in this way is a traveling motor 20.
By actuating 7, it is possible to move along the guide rail 16.

Furthermore, by operating each winch 208 in the direction in which the wire 209 is paid out, the holder 201 can be lowered as shown in FIG. At this time, by changing the wire payout amount of each winch, the body mounting table 215 is tilted as shown in the figure, and the body 10 is accordingly tilted.

Further, in the state shown in FIG. 3 in which the holder 201 is raised to the uppermost position, the pin 216 provided at the top of the rod 214 is connected to the cylindrical body 216 provided on the lower surface of the lower frame 204.
17, thereby attaching the holder 2 to the mobile vehicle 200.
01 is fixed.

Note that the cable 218 shown in FIGS. 4 and 5 is
It is provided to ground the body 10.

The body 10 held by the hanger 20 is moved above the spray tank 11 shown in FIG. 1, and then lowered into the spray tank 11 and washed with water.

Then, after being raised to the top of the spray tank 11, it is immersed for $1.
! ! It is moved above 12. Then, it is immersed in this tank 12 in the manner shown in FIG.

That is, the body 10 is in the tank 1 with the rear side lowered.
2, and then the body 10 is swung within this bath 12. After that, the body 1 is placed in a position with the rear side lowered.
0 is raised and returned to a horizontal position.

Note that this immersion bath 12 is subjected to treatments such as water washing and surface conditioning.

Next step immersion t1! ) 13 has a continuous tank (R construction) in which the width of the guide rail 16 in the longitudinal direction is set to about three times that of other immersion/Jttff12.14.

In this immersion tank 13 as well, the body 1 is
The immersed body 10 is laterally moved in this tank 15 while the attitude of the body 10 is changed. Therefore, this tank 13
This means that the processing will take a longer time. In addition,
In this tank 13, treatments such as degreasing, chemical conversion, and electrodeposition are performed.

Next, dip/J! Immersion treatment and spray treatment are performed in the tank 14 and the spray tank 15, respectively, and then the body 10 is carried out to the next process.

The rocking of the body 10 in the baths 12, 13 and 14 is carried out in order to eliminate air pockets formed on the surface of the body 10 and eliminate untreated areas. In this embodiment, the body 10 is swung at a swiveling angle of 10° to 17''.
This is done by alternately driving 08 in different directions.

The rear side of the body 10 is lowered when the body 10 is inserted into and taken out of the multi-tubs 12 to 14, and this is to allow easy and rational loading and unloading.

That is, since there are many openings on the rear side, by lowering this rear side and entering the tank, the processing liquid can enter the body 10 more quickly, thereby allowing smooth entry into the tank. Further, by raising the rear side to discharge the tank, the processing liquid can be quickly removed from the body 10, thereby reducing the amount of processing liquid taken out and allowing smooth tank discharge.

Note that when entering the tank, the body 10 is lowered at high speed until it lands on the water, and then lowered at low speed until it enters the water.

Then, it is lowered at a medium speed until it is completely sunken, and the above-described swinging is performed at the lowering end.

In the continuous tank 13 shown in Figure 1? When performing four-tube treatment, it is desirable to arrange electrode plates on all inner surfaces of the tank. This is because, in this way, the thickness of the electrodeposited film becomes more uniform. Further, it is preferable that the bath 13 is energized after the body 10 is fully immersed in the processing solution in order to prevent the step-like phenomenon of the electrodeposited film.

FIG. 6 illustrates the overall configuration of an actual painting line.

In the figure, S indicates spray treatment and D indicates dipping treatment. In addition, ``dial'' indicates that the immersion tank has a single-tank structure (see tank 11.12.14 in Figure 1), and ``ren'' indicates that the tank has a continuous tank structure (see 1fJ13 in Figure 1). ing.

The present invention can be effectively applied not only to automobile bodies but also to painting lines for painting other objects to be painted.

〔Effect of the invention〕

According to the present invention, since the object to be coated is conveyed in such a manner that the longitudinal axis of the object to be coated is perpendicular to the guide rail, the process length can be shortened.

In addition, in processes that require long-term processing,
Since the object to be coated is transported in a tank (continuous tank in the embodiment) having a wide width in the direction of the transport line, work efficiency can be improved.

In other words, when processing is performed for a long time using simple action,
Although the conveyance interval of the line will be dominated by this process, according to the present invention, which has a self-propelled hanger and the above-mentioned wide tank, the objects to be coated can be conveyed independently in the wide tank. Therefore, it is possible to avoid the inconvenience that the transport interval of the line becomes long due to long-time processing, and as a result, work efficiency is improved.

[Brief explanation of drawings]

FIG. 1 is a conceptual diagram showing an embodiment of the coating processing apparatus according to the present invention, and FIG. 2 is a body posture 1111 during immersion.
FIGS. 3 and 4 are conceptual diagrams illustrating aspects of the FB; FIGS. 3 and 4 are front and side views conceptually illustrating the structure of the hanger, respectively; FIG. 5 is a conceptual diagram illustrating the function of the hanger; and FIG. 7 is a flowchart illustrating the entire process of a coating line, and FIG. 7 is a conceptual diagram showing a conventional coating processing apparatus. 10...Body, 11-15...Processing tank, 20...
・Hanger, 200... Mobile vehicle, 201... Holder,
207...Motor, 208...Winch. Representative Patent Attorney Takahisa Kimura - Part 1 Funeral Map Figure 4

Claims (1)

[Scope of Claims] A plurality of painting processing equipment arranged along a painting line, a guide rail disposed above the painting processing equipment along the painting line, and a movable suspension suspended on the guide rail. holding means for holding the object to be coated in such a manner that the longitudinal axis of the object to be coated is perpendicular to the guide rail; and lifting and lowering of the object to be coated via the holding means. and a self-propelled hanger equipped with a swinging means, and among the above-mentioned painting processing equipment, the width in the painting line direction of the equipment with a long processing time is made larger than the width in the painting line direction of the other equipment. A painting processing device characterized by: