JPH0328939Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] The present invention picks up a substantially circular object to be coated that is intermittently conveyed by a conveyor from the conveyor and transfers it to a predetermined coating position. This invention relates to a device for transporting objects to be coated, which is configured to return objects to be coated onto a conveyor after coating is completed.

[Technical background]

When applying an annular coating to a desired part of an approximately circular object such as an automobile brake drum, it is better to mask each unpainted part one by one and then spray the paint over the entire surface. However, it is more efficient to rotate the object to be painted at a predetermined coating position in a painting booth and spray paint tangentially only to the painting area of the rotating object.

By the way, when applying continuous coating to a large number of objects to be coated, the conventional method is to continuously convey them to a predetermined coating position by a conveyor. etc., at a predetermined painting position as described above,
The conveyor itself must be equipped with a rotational drive mechanism for the objects to be coated, which poses a problem in that the structure of the conveyor itself becomes very complicated. Furthermore, if paint is directly sprayed onto a brake drum or the like conveyed on a conveyor, a large amount of paint will adhere to the conveyor, staining it and causing malfunction.

[Purpose of invention]

This idea was created in view of the above-mentioned circumstances.
The object to be coated being conveyed by a conveyor is picked up from the conveyor, transferred to a predetermined coating position separated from the conveyor and rotated, and a ring-shaped coating is applied to the desired coating location without staining the conveyor with paint. The purpose of the present invention is to provide a device for transporting objects to be coated.

[Structure of the idea]

In order to achieve this object, the present invention picks up a substantially circular workpiece that is intermittently conveyed by a conveyor from the conveyor, transfers it to a predetermined coating position, and then transfers it back to the conveyor after painting is completed. A rotating shaft that is configured to transport objects to be coated and return them upwardly, and that is engaged from below to the objects to be coated on the conveyor and supports the objects in a detachable manner. , a motor for rotationally driving the rotary shaft at the coating position, a lifting cylinder for vertically reciprocating the rotary shaft together with the motor, and a cart on which the rotating shaft, the motor, and the lifting cylinder are mounted on the conveyor. It is characterized by comprising a transfer cylinder that reciprocates in the horizontal direction between the painting position and the painting position.

[Effect of invention]

According to the present invention, first, the lifting cylinder is operated to move the rotating shaft upward, and the tip of the rotating shaft is engaged from below the object to be coated on the conveyor, and the object to be coated is moved onto the conveyor. Take it from.

Next, the transfer cylinder is operated to move the cart carrying the rotary shaft, motor, and lifting cylinder toward the coating position, and the object to be coated supported by the rotary shaft is transported to a predetermined coating position and placed there.

In this state, the motor is activated to rotate the rotary shaft to apply an annular coating to a desired location on the object to be coated.

When the painting is completed, the motor is stopped, and the transfer cylinder is operated again to move the cart carrying the rotating shaft and the like toward the conveyor and return to its original position.

Next, by activating the lifting cylinder and moving the rotary shaft downward, the coated object supported by the rotary shaft is returned onto the conveyor.

Therefore, since the conveyor for conveying the object to be painted can be installed at a location separated from the painting position, paint is not sprayed onto the conveyor, and paint does not adhere to the conveyor and cause a malfunction. Furthermore, the object to be coated is picked up from the conveyor and rotated at a predetermined coating position, so that a ring-shaped coating can be applied to a desired coating location.

〔Example〕

Hereinafter, the present invention will be explained based on specific embodiments shown in the drawings.

FIG. 1 is a front view showing a device for transferring objects to be coated according to the present invention.

In the figure, reference numeral 1 denotes a rotary shaft that engages from below a brake drum 3 that is conveyed intermittently and sequentially by a conveyor 2 and supports the brake drum 3 in a detachable manner; a motor that rotates at the coating position
6 is a trolley 7 equipped with a rotating shaft 1, a motor 4, and a lifting cylinder 5, and a conveyor 2 and a painting position X.
This is a transfer cylinder that reciprocates horizontally between the two.

The rotary shaft 1 is rotatably installed upright on the gear box 8, and a pedestal 9 is fixedly installed at the tip of the shaft to fit on the lower surface of the brake drum 3 to place and support it. A bevel gear 12 that meshes with a bevel gear 11 attached to the rotating shaft 10 of the motor 4
is permanently installed.

The lifting cylinder 5 is erected between telescopic columns 13 and 13 erected on the cart 7, and its rod head 14 is fixed to the lower surface of a base plate 15 installed between the upper ends of the columns 13 and 13. The piston rod 16 is expanded and contracted to reciprocate the rotary shaft 1 and the motor 4 fixedly mounted on the base plate 15 by a predetermined distance in the vertical direction.

The trolley 7 is disposed so as to be able to run on a horizontal rail 17 extending from below the conveyor 2 in the direction of the coating position X.

The transfer cylinder 6 is disposed horizontally below the conveyor 2, and its rod head 18 is connected to an arm 19 formed protruding from the tip of the truck 7. The transfer cylinder 6 extends and contracts the piston rod 20 to move the truck 7 to the rail 17.
The vehicle is configured to travel back and forth over a predetermined distance.

In addition, 21 is a coating machine arranged to spray paint from the conveyor 2 side toward the brake drum 3 transferred to the coating position X, and 22 is a coating machine arranged below the brake drum 3 transferred to the coating position X. A water film plate 23 provided with slots for inserting and guiding the rotary shaft 1 is a water supply pipe that supplies water to form a water screen on the water film plate 22.

The above is an example of the configuration of the device of the present invention, and the operation thereof will be explained next.

First, the conveyor 2 that conveys the brake drum 3
is activated to move the brake drum 3 directly above the rotating shaft 1 and stop it. Then, the lifting cylinder 5 of the device of the present invention is operated from the state shown by the solid line, the piston rod 16 is extended, and the rotating shaft 1 fixed on the base plate 15 is moved upward together with the motor 4. The pedestal 9 fixed at the tip of the brake drum 3 is fitted onto the lower surface of the brake drum 3 on the conveyor 2.
is placed and supported on the pedestal 9 and taken up from the conveyor 2 as shown by the chain line.

Next, the transfer cylinder 6 is actuated to extend its piston rod 20 and move the rod head 18.
A truck 7 connected to the is moved along a rail 17 for a predetermined distance in the direction of the painting position X, and the brake drum 3 supported by the rotary shaft 1 is carried to the painting position X and fixed there.

At this time, the rotary shaft 1 is guided through the slot formed in the water film plate 22 and moved to the coating position X, and only the brake drum 3 and the rotary shaft 1 supporting it are placed on the water film plate 22. The protrusion, other motor 4, lifting cylinder 5, transfer cylinder 6, etc. are all shielded by the water film plate 22.

In this state, the motor 4 is activated to rotate the rotary shaft 1 at a predetermined speed, and at the same time, paint is applied to the desired coating area of the brake drum 3, which is supported and rotated by the rotary shaft 1, in the tangential direction thereof. Paint is sprayed from machine 21.

As a result, the coating sprayed from the coating machine 21 applies an annular coating to the desired coating location on the brake drum 3, and prevents the oversprayed coating from adhering to the conveyor 2. The paint is collected by adsorption to the water screen formed above, and does not adhere to the motor 4, lifting cylinder 5, transfer cylinder 6, etc. of the device of the present invention, which are shielded by the water film plate 22.

When the painting is completed, the operation of the motor 4 is stopped, and at the same time, the transfer cylinder 6 is operated again to move the cart 7 carrying the rotary shaft 1, etc., in the direction of the conveyor 2, and return it to its original position.

Next, the lifting cylinder 5 is operated to move the rotary shaft 1 downward, and the painted brake drum 3 supported by the rotary shaft 1 is moved downward.
is returned onto conveyor 2.

Then, the conveyor 2 is operated again to carry out the painted brake drum 3 to the next stage, and at the same time transfers a new brake drum 3 to the position directly above the rotary shaft 1 and stops, and thereafter repeats the above-mentioned operation. Then, the brake drum 3 is coated continuously.

[Effect of idea]

As described above, according to the present invention, the object to be painted, such as a brake drum, is picked up from the conveyor conveying it, transported to a predetermined painting position, rotated at the painting position, and then returned again after painting is completed. Because it is designed to be sent back on the conveyor,
By installing the conveyor that transports the object to be painted at a predetermined distance from the painting position, it is possible to reliably prevent the paint sprayed from the coating machine from adhering to the conveyor, and also to mask the object to be painted. It has the excellent effect of being able to apply an annular coating to the desired location without applying a coating.

[Brief explanation of drawings]

The figure is a front view showing an example of the device of the present invention. Explanation of symbols, 1... Rotating shaft, 2... Conveyor, 3... Brake drum (object to be painted), 4...
...Motor, 5...Lifting cylinder, 6...Transfer cylinder, 7...Dolly, 8...Gearbox, X
...Painting position.

Claims (1)

[Scope of utility model registration request] A generally circular object to be painted that is intermittently conveyed by a conveyor is picked up from the conveyor, transferred to a predetermined coating position, and then returned to the conveyor after painting is completed. The transfer device includes a rotating shaft that is engaged from below with an object to be coated on the conveyor and supports the object in a detachable manner, and the rotary shaft is rotationally driven at the coating position. a motor, an elevating cylinder that reciprocates the rotary shaft in a vertical direction together with the motor, and a cart on which the rotary shaft, motor, and elevating cylinder are mounted, reciprocates horizontally between the conveyor and the painting position. 1. A device for transferring an object to be coated, characterized in that it is comprised of a transfer cylinder.