JPS6039103Y2 - Conveyance device for surface painting of treated objects - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a conveying section in a conveying apparatus for painting workpieces such as aluminum or its alloy shapes and plates by dip coating.

Conventionally, in immersion painting such as TFS painting, the movement of the paint liquid level interferes with the smoothing of the painted surface and causes uneven coating, so it is necessary to keep the paint liquid level stationary during painting, so the paint is transported by crane. The carrier bar is then transferred to a special lifter installed next to the paint tank, and the lifter lowers the object to be treated into the paint tank quietly without any movement, and without disturbing the paint surface. It is to be pulled up and painted.

Furthermore, since this coating uses a paint containing toxic trichlorethylene or the like as a solvent, it is necessary to construct a shielding wall around the paint tank in order to prevent the scattering of toxic gases generated from the paint tank.

By the way, in recent years, when painting many types of objects in one process efficiently, several types of paint tanks are prepared even in the dip coating process, and the necessary paint tank is used each time. It became necessary to carry out painting, but installing a lifter for each paint tank and raising and lowering the material to be treated on each paint tank would require a great deal of expense, and the associated operations would be time-consuming. This complicates the process and actually impedes work efficiency.

Therefore, this idea was developed to improve the complexity of the equipment and operation described above, by providing a lifter that can move across multiple paint tanks, which raises and lowers the object to be treated, simplifying the equipment and streamlining the overall process. This is an attempt to shorten the time period.

In addition, in order to prevent the scattering of toxic gases emitted from the coating layer of the workpiece that is pulled up immediately after the equipment, the shielding wall must be installed at the highest point of the workpiece that is being pulled up. This wall obstructs the movement of the suspended workpiece when it is transported to the next process.

In addition, this problem can be solved by raising the crane running position, but the height of the building is also limited by itself, and it is dangerous to run the crane too high, so in the end, the shield walls, especially the front and rear side walls, have to be removed. It is lowered when the crane moves, so that it does not interfere with the movement of the objects to be processed, that is, the movement of the crane.

To explain this using an example shown in the drawings, FIG.
This is a schematic diagram of a lifter according to this invention, where A is an immersion paint tank and 1 is a lifter cart, which runs on a rail 11 provided over a plurality of paint tanks.

On the trolley 1 are four support columns 2 for lifting and lowering the carrier par 10.
is provided, through which the carrier bar support 3 is raised and lowered, and the workpiece B suspended on the carrier par 10 supported on the support 3 is lowered into or pulled up into the paint tank A. do.

Further, as shown in FIG. 3, a shielding wall 7.7a is provided between each of the support columns 2 so as to surround the workpiece B moving up and down. Shielding wall 7, 7
can move up and down.

4 is a guide roller for lifting the support column 3, 5 is a wire, 6 is a motor for lifting and lowering the shielding wall 7, and 8 is a carrier par 1.
A transport crane of No. 0 travels on a rail 9 provided at a higher position than the rail 11.

This crane 8 has a grip body 14 that can be raised and lowered, and the grip body 14 can be moved up and down along a guide frame 20 attached to the center of the truck, and locks a pair of holding parts 13 of the carrier par 10.

15 is a reel for winding up and down the wire 5 of the support 3;
These are driven by a motor 12.

A lid 25 is provided on the paint tank to cover the opening, and is left open during processing of the object to be treated, and closed when not in use to prevent leakage of solvent gas.

Further, a duct 22 for discharging and collecting solvent gas is provided above each paint tank, and matches the opening of the duct 21 installed on the truck.

The duct 21 on this truck is connected to the suction section 24 of a push-pull device 23 attached to the bottom of the truck, and by push-pull of air, the solvent gas emitted from the paint tank is sucked from the suction section 24 when the object to be treated is pulled up. , duct 2
1.22.

Further, a banner 26 is hung from the bottom of the cart to close the gap with the paint tank.

Since this invention has the above-mentioned configuration, first, as shown in Fig. 2, the crane 8 is moved onto a lifter that has been moved and is waiting on a predetermined paint tank A according to instructions. The carrier par 10 stopped and suspended the workpiece.
is transferred from the crane 8 to the support 3 of the lifter.

At this time, the shielding wall 7 of the lifter is lowered to prevent collision with the guide frame 20 of the advancing crane.

After the carrier par 11 is transferred to the lifter and the crane 8 leaves, the shielding wall 7 rises and the support 3 is activated according to instructions and is lowered quietly by the motor 12, reel 15, roller 4, and wire 5, and the workpiece is removed. Immerse B into paint tank A.

After a predetermined period of time, the object to be treated B is lifted up from the paint tank by a lifter, but as shown in FIG. To prevent the solvent gas emitted from the coating layer of the object B from scattering into the factory.

Next, the crane 8 moves onto the lifter, but at this time, the shielding wall 7 on the side where the crane 8 is advancing, that is, on the front process side, is lowered so as not to obstruct the advancement of the guide frame 20 of the crane 8. Make it.

Then, from the support 3 of the lifter to the grip 1 of the crane 8
4, and in this state, hold the gripper 14.
is slightly raised to prevent the lower end of the object from coming into contact with the shielding wall 7 at the lower limit position.

The painted object suspended from the crane 8 is transported to the next drying process, but at this time, the fourth
As shown in the figure, the shielding wall 7 on the advancing side of the crane 8 is lowered, and the workpiece B can be moved without coming into contact with the shielding wall 7.

With the above-mentioned configuration, this invention enables efficient coating of a wide variety of objects that require various types of coatings using an efficient coating device, and furthermore, the coating layer of the objects immediately after treatment It is equipped with a shielding wall that can be raised and lowered to prevent solvent gas emitted from the machine from scattering to the surrounding area. Since there is no contact with shielding walls and the material to be processed is not pulled up high when being transferred to a crane, it is possible to keep the factory building low, reducing factory construction costs. I can do it.

[Brief explanation of drawings]

FIG. 1 is a longitudinal sectional front view of an embodiment of this invention, and FIG. 2 is a
Side view during transfer of workpiece between lifter and crane, 3rd
The figure is a plan view, and FIG. 4 is a front view showing the state when the shielding wall is lowered. A: Paint tank, B: Object to be treated, 1.
... Lifter trolley, 2 ... Lifter support column, 3 ... Support body, 4 ... Support body lifting roller, 6 ...・Motor for lifting/lowering operation, 7... Shielding wall, 8... Crane, 9゜11... Rail, 10... Carrier bar

Claims (1)

[Scope of utility model registration request] The transport lane of the carrier bar that suspends and holds objects to be treated can be run across multiple processing tanks, and the paint lifter installed separately from the above crane can be run across multiple paint tanks at a lower running level than the crane. This lifter is a conveying device for surface painting of objects to be treated, which is equipped with a support that can be moved up and down to receive and transfer the crane and carrier bar.