JPH0390595A - Treating device for coating - Google Patents

Abstract

PURPOSE:To avoid contact of a material to be treated with the equipment in a treating tank by providing a means for controlling the oscillation of a means for holding the material when lifted up and down on the holding means. CONSTITUTION:The material 217 to be treated is lifted up and down in the treating tank 40 along with the holder 201. A treating soln. 50 is circulated and discharged from a nozzle 60 for agitating the treating soln. set in the tank 40, and the material 217 tends to be pushed and moved by the current. When the material 217 is oscillated to the left and right, a protrusion 221 on the rod 214 of the holder 201 abuts on the inner side surface of the frame plate 301 of a frame 30. When the material 217 is vertically oscillated, the rod 214 of the holder 201 abuts on the frame plate 302 or 303 of the frame 30. Accordingly, the oscillation of the material 217 when charged to and discharged from the tank is effectively controlled, and contact of the material 217 with the nozzle 60 or the like can be avoided.

Description

[Detailed description of the invention] [Industrial application field] The present invention Concerning suitable paint processing equipment.

[Conventional technology]

In a high-tact type painting processing apparatus which is used in many applications, a workpiece 2 (for example, the body of an automobile) is held by a holder 1a of a jaw hanger 1 shown in FIG. Then, a winch (not shown) provided on the hanger base 1b of the hanger 1 lets out the wire IC (or chain) as shown in FIG. is immersed in the processing liquid 4.

Note that the workpiece 2 that has been subjected to a predetermined treatment (for example, 6t1 of water, degreasing, etc.) in the treatment wave 4 is raised again to the top of the tank 3, and then transported to the treatment sentry for the next process. .

[Problem to be solved by the invention]

By the way, as shown in FIG. 9, inside the processing tank 3, stirring rP nozzles 5 for discharging the processing ill 4 taken out from the processing tffB into the processing tank 3 are arranged.

The processing waves emitted from the nozzle 5 generate a liquid flow within the processing tank 3, which causes the processing object 2 to swing greatly when it enters and exits the tank. For this reason, in the past, the object 2 to be processed often came into contact with the nozzle 5, damaging both of them.

Note that in order to reduce the swing width of the object 2 to be treated, it is conceivable to lower the speed at which the object 2 enters and exits the tank, but this increases the coating processing time and reduces productivity. .

On the other hand, it is conceivable to design the dimensions of the WJ 3 to be large in consideration of the swing width, but this would result in the inconvenience of not only increasing the installation space of the tank 3 but also requiring a large amount of processing liquid 4 to be prepared.

In view of this situation, it is an object of the present invention to provide a coating processing apparatus that can suppress as much as possible the shaking of the above-mentioned objects to be processed when they enter and exit the tank.

[Means to solve the problem]

The present invention includes a hanger having a holding means for holding an object to be processed and a winch for raising and lowering the holding means, and a processing tank in which a processing liquid is pooled and into which the object to be processed is moved in and out of the tank by the elevating means of the hanger. In the painting processing apparatus equipped with the above, means is provided for suppressing swinging of the holding means by coming into contact with the holding means when the lower holding stage is raised and lowered.

[Effect]

According to this coating processing apparatus, the holding means moves up and down while being prevented from swinging.

〔Example〕

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

FIGS. 1 and 2 show a front view and a side view, respectively, of an embodiment of a coating processing apparatus according to the present invention.

A zero-run type hanger 20 equipped with a moving vehicle 2°O and a holder 201 is suspended from the guide rail 1o shown in each figure.

The mobile vehicle 200 has an upper frame 203 and a lower frame 204 that are connected to each other 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 resin wheel 206 on the upper part that contacts the upper surface of the guide rail 1o, and the arm 205 on the - side
5 is attached with a motor 207 for driving wheels 206.

A pair of winches 208 are provided on the lower surface of the upper frame 203.
is installed. And these winches 208
The tip of the wire 209 wrapped around the pulley 210,
They are led out from the front center and rear center of the lower frame 204 via 211 and 212, respectively, to the lower surface side of the frame.

As shown in FIG. 4, the holder 201 is attached to each winch 20.
It includes a support frame 21° 3 to which the tips of each wire 209 driven by 8 are connected, and four rods 214.

Connectors 215 are connected to the upper ends of each rods 214, and these connectors 215 are pivotally supported by pins 216 on the sides of each corner of the support frame 213.

Further, at the lower end of each rod 214, an object to be processed 217 (
For example, tables 218 on which objects (for example, the body of a car) are placed are each pivotally supported via pins 219. and,
A pair of rods 214 parallel to each other in a plane orthogonal to the guide rail 10 are connected to each other via a link rod 220 to a stand 218 attached to the rods 214 .

Furthermore, a projection 221 is attached to the upper end side of each rod 214 in a manner perpendicular to the guide rail 10.

In addition, in FIG. 4, the pivot of the coupling tool 215 is indicated by 11, and the pivot of the stand 218 is indicated by J12.

The hanger 20 configured in this manner can be moved along the guide rail 10 by operating the travel motor 207 shown in FIG.

In addition, by operating each winch 208 in the direction in which the wire 209 is paid out, the F is secured as shown in FIG.
! ? It is also possible to lower the tool 201.

As shown in FIG. 2, since the pivots 21.6, 219 and each element 213, 214, and 220 constitute a parallel link, by changing the wire payout amount of each winch 208, as shown in FIG. The support frame 213 and the link rod 220 can be tilted as shown in FIG.
Along with this, the object to be processed 207 is tilted.

On the other hand, in the state shown in FIGS. 1 and 3 in which the holder 201 is raised to the uppermost position, the pin 222 provided at the top of the connector 215 is attached to the cylinder 223 provided on the lower surface of the lower frame 204. The mobile vehicle 2
A holder 201 is fixed to 00.

Note that the cable 224 shown in FIGS. 2 and 3 is
It is provided to ground the object 217 to be processed.

FIG. 5 shows the frame 30 positioned around the hanger 20.

This frame body 30 is constructed between four wooden frame plates 301 that hang down from the four corner sides of the lower frame 204 of the moving vehicle 200, and the lower portions of a pair of frame plates 301 that are parallel to each other in a plane orthogonal to the guide rail 10, parallel to each other. Frame board 3 hung horizontally in a manner that
02,303.

The frame plate 301 is fixed to the frame 204 in such a manner that its wide side extends downward to the guide rail and faces the protrusion 221 provided on the rod 214.

As shown in FIG. 2, the distance between the pair of frame plates 301 parallel to each other in a plane orthogonal to the guide rail 10 is set to be slightly larger than the distance between the tips of the protrusions 224 of each rod 214 adjacent to them. ing.

The mounting position of the frame plate 302 is set so that it is located near the flat end of the rod 214 in the raised position of the holder 201 shown in FIG. 2, and the frame plate 303 is attached to the holder 201 shown in FIG. Rod 21 in the lowered position of 201
The mounting position is set so as to be located near the upper end of 4.

The operation of this embodiment will be explained below.

The workpiece 217 held on the hanger 20 is placed in the second position with its longitudinal axis perpendicular to the guide rail 1o.
It is moved to just above the processing tank 40 shown in the figure.

Thereafter, the object to be processed 217 is lowered together with the holder 201 toward the tank 40 by the feeding operation of the winch 208, and is eventually immersed in the processing liquid 50 in the tank 40. After being subjected to a predetermined treatment (for example, washing with water, degreasing, etc.) in the treatment liquid 50, it is raised again to above the tank 40 together with the holder 201 by the winding operation of the winch 208.

Incidentally, near the inner wall surface of the processing tank 40, as shown in FIG. 3, nozzles 60 for stirring the processing liquid are arranged in an array. The treated solution is circulated and released.

Therefore, there is a flow (Y) of the processing liquid 50 in [40, and this flow tries to restrain and move the object 217 to be processed.However, in this embodiment, the object 217 to be processed due to the flow 217 is suppressed in the following manner.

That is, when the object to be processed 217 tries to swing in the left direction ↑ in FIG. 3, the protrusion 221 protruding from the rod 214 of the holder 201 comes into contact with the inner surface of the frame plate 301 of the frame body 3o.

On the other hand, when the object 217 to be processed tries to swing in a direction perpendicular to the plane of the paper in FIG.
comes into contact with the frame plate 302 or 303 of the frame body 30.

Therefore, the swinging of the object to be processed 217 during cooling is effectively suppressed, thereby making it possible to avoid inconveniences such as the object to be processed 4° coming into contact with the nozzle 60.

Incidentally, a strong rocking force acts on the object to be processed 217 when the object to be processed 217 enters the processing wave 5o and when it exits the processing lfk.

Therefore, in this embodiment, sections A11 and A shown in FIG.
The lifting speeds of the workpieces 217 in No. 2 and A3 are set to high speed, low speed, and medium speed, respectively, thereby improving workability and smoothing the PI of the input/output tank.

Note that when the object to be processed 217 is the body of an RL vehicle, the object to be processed 217 is placed in the third
It is tilted at an appropriate angle as shown in the figure.

In addition, in order to improve processing efficiency, the liquid 5 of the object to be processed 217 is
After immersion into the workpiece 217, the workpiece 217 is yawed by alternately counteracting the winches 208.

Furthermore, when the object to be treated 217 is run in acid, the object to be treated 217 is immersed in the processing tube 50, and then the hanger 20 is moved along the guide rail 10.

FIG. 6 shows another embodiment of the invention.

In the holder 201 shown in FIG. 2, a protrusion 221 is provided on the rod 214, but in the holder 201' shown in FIG. 6, a guide rod 226 is provided in place of this protrusion 221.

The guide rods 226 are arranged in parallel in the section from the upper end to the lower end of the rod 214, and are arranged along the wall 41 of the processing tank 40.
protrudes to the side.

On the other hand, in this embodiment, four side blocks 70 corresponding to the respective guides 226 are disposed on the wall portion 41.

In this embodiment, as the holder 201' moves up and down, the guide rod 226 moves to the guide plate 71 of the guide block 70.
72, the swinging of the objects to be treated is suppressed when entering and exiting the tank, similar to the embodiment described above.

Note that the guide plate 71 is set to have a shorter vertical length than the guide plate 72, and when the workpiece is insulated to the lowest position, the upper end of the guide rod 226 is lower than the lower edge of the guide plate 71. will also be located below.

In such a state, the holder 20 in the direction along the guide rail
Since the movement of 1' is possible, the object to be treated can be moved in the liquid as necessary.

FIG. 7 shows yet another embodiment of the invention.

In this embodiment, a holder 201' having a structure in which the guide rod 226 is removed from the holder 201 shown in FIG. A guide cylinder 80 is provided.

Each cylinder 80 is provided with an arcuate pawl 81 at the tip of its piston rod, and is retracted when the holder 201' is in the raised position.

When the holder 201' starts to descend and its platform 218 passes in front of the cylinders 80, fluid pressure is applied to each cylinder 80, causing the cylinders 80 to extend. Then, the claws 81 of each cylinder 80 approach the lower end of the corresponding rod 214, and then the holder 201' is lowered into the tank 40 while being prevented from swinging by the claws 81.

Note that when the holder 201' finishes descending, the claw 8
1 will be located at the upper end of the rod 214.

Even after the holder 201' starts to rise, the extended state of the cylinder 80 is maintained, and the base 218 of the holder 201'' is attached to the claw 8.
1, each cylinder 80 is retracted. Therefore, the holder 201 is held until the workpiece (not shown) is removed from the tank 40.
” will be suppressed.

Note that when the hanger 20 is moved to cause the object to be processed to travel in the liquid, the cylinder 80 is retracted.

In this manner, also in this embodiment, the swinging of the holder 201' is suppressed when the holder 201' is moved in and out of the tank.

〔Effect of the invention〕

According to the present invention, since the swinging of the holding means of the hanger is suppressed, it is possible to avoid the inconvenience that the object to be processed held by the holding means comes into contact with equipment in the processing tank.

[Brief explanation of drawings]

1 and 2 are a front view and a side view conceptually showing one embodiment of the present invention, respectively, FIG. 3 is a conceptual diagram showing the operation of this embodiment, and FIG. 4 is a holder. FIG. 5 is a perspective view showing the structure of the crushed body, FIGS. 6 and 7 are perspective views conceptually showing other embodiments of the present invention, and FIGS. FIG. 9 is a conceptual diagram showing the structure and operation of a conventional tact type coating processing apparatus. 10... Guide rail, 20... Hanger 30...
・Frame body, 40... Processing tank, 50... Processing liquid, 70.
... Guide block, 80 ... Guide cylinder, 20
1... Holder, 208... Winch, 214...
Rod, 217... Workpiece, 221... Protrusion, 2
26...Guide rod, 301.302,303...
・Frame board. Figure Figure Figure 4 Figure Figure 5 Figure 6 Figure 7 Figure Figure Figure

Claims (1)

[Scope of Claims] A hanger having a holding means for holding an object to be treated and a winch for raising and lowering the holding means, and a process in which a processing liquid is pooled and the object to be treated is taken in and out of a tank by the lifting means of the hanger. What is claimed is: 1. A coating processing apparatus comprising a tank, further comprising means for suppressing swinging of the holding means by coming into contact with the holding means when the holding means is raised and lowered.