JPS6125890Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an automatic spray painting device.

In conventional automatic spray painting booths, the conveyor chain is contaminated by oversprayed paint or paint dripping from masking, which contaminates the workpieces that come into contact with the conveyor chain and causes various problems. There is. For example, if the object to be painted is a block cylinder, the mating surfaces of the oil pan become dirty, resulting in poor sealing and oil leakage. Additionally, paint dripping from the masking stains the top surface of the block cylinder, which is the mating surface of the heads, resulting in poor sealing and water or oil leaks.

This invention prevents overspray paint from adhering to the conveyor of the object to be painted during painting, and also prevents paint from adhering to unnecessary parts of the object to be painted. The object of the present invention is to provide an automatic spray painting device that does not cause troubles due to adhesion.

For this reason, the configuration of the present invention is such that in an automatic spray painting booth that has a conveyor that moves objects to be coated laterally and a coating gun that paints the objects to be coated in a coating section, the conveyor is covered in a tunnel shape. a tunnel consisting of a shielding plate with an opening at the coating section; a lifter located below the coating section for lifting up the object to be coated; It is characterized by comprising a movable upper masking that covers the upper side of the object and a movable lower masking that covers the lower side of the object.

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

In the drawing, 1 is a roller flight conveyor as a conveyor for horizontally moving objects to be coated;
2 is the object to be coated such as a block cylinder, 3 is the first
4 is a second seesaw stopper provided below the coating section; 5 is a lifter provided below the coating section to lift up the object to be coated 2; 6 is front and rear masking; 7 is movable. 8 is a reciprocator to which a painting gun is attached; 9 is a masking cleaning device; 10 is a tunnel consisting of a shielding plate that covers the conveyor 1 in a tunnel shape and has an opening in the coating section; It is a movable lower masking.

In other words, the object to be coated 2 such as a block cylinder
is conveyed to the left in FIG. 1 by the roller flight conveyor 1, and the
When it passes through and reaches the second seesaw stopper 4, it is lifted by the lifter 5. When the object 2 to be coated is lifted, the lower masking 11 closes to mask the conveyance chain of the conveyor 1, and the upper masking 7 rotates to mask the upper part of the object 2 to be coated. Note that the front and rear maskings 6 are fixed to the upper part of the tunnel 10. When the masking of the object 2 to be painted is completed in this way, painting is started in the painting section. In this embodiment, the coating gun attached to the reciprocator 8 performs coating by reciprocating once from side to side in FIG. 1. Here, when the coating is completed, the lower masking 11 is opened, the lifter 5 is lowered, the stopper 4 is opened, and the object to be coated is moved by the conveyor 1.
is carried out. At the same time, the upper masking 7 rotates to the position shown by the two-dot chain line in FIG.

In this way, while the object 2 to be coated is being conveyed by the roller flight conveyor 1 inside the coating booth 13, it is covered by the tunnel 10, so that the paint dripping from the front and rear masking 6 and the upper masking 7 is not absorbed by the object to be coated. It does not adhere to the objects 2 or the chain of the conveyor 1.

FIG. 3 is a detailed explanatory view of the cleaning device 9 for the upper masking 7. When the coating on the object 2 in the coating section is completed, the rod 15 is lowered and the upper masking 7 is rotated to stand upright. Then, the masking cleaning device 9 descends, and a cleaning member 14 such as a scraper scrapes off the paint adhering to the upper masking 7 and drops it into the paint receiver 12.

As described above, according to the present invention, the conveyor that conveys the object to be coated is covered with a tunnel, and the object to be coated is lifted up with a lifter in the coating section and painted.
Oversprayed paint does not adhere to the conveyor, and conventionally the conveyor had to be cleaned after each painting, but such cleaning work is no longer necessary, making the conveyor maintenance-free and preventing the conveyor from becoming dirty. This eliminates the staining of the object to be painted, and has the effect of preventing the sealing failure of the object to be painted, which is the case in the past. Further, the conveyor and the objects to be painted are not contaminated by dripping of paint adhering to the masking, and the same effect as described above is achieved. Moreover, since it lifts up the object to be coated,
The length under the neck of the reciprocator can be reduced accordingly, and strength and reliability can be improved. In addition, conventionally, the object to be painted was stopped on the conveyor and the masking was lowered, but in this invention, the conveyor is covered with a tunnel and the object to be painted is lifted up in the painting section and painted. The upper masking can be made rotatable, making it possible to install a masking cleaning device.
Problems caused by paint dripping from masking can be eliminated.

[Brief explanation of the drawing]

The drawing shows one embodiment of the present invention.
The figure is a sectional side view, FIG. 2 is a sectional front view, and FIG. 3 is an enlarged side view of the masking cleaning device. 1...Roller flight conveyor, 2...Workpiece, 3, 4...Seesaw stopper, 5...Lifter, 6...Front and rear masking, 7...Upper masking, 8...Reciprocator, 9...Masking Cleaning equipment, 10...Tunnel, 11...Lower masking, 12...Paint receiver, 13...Painting booth,
14... Cleaning member, 15... Rod.

Claims (1)

[Scope of utility model registration request] In an automatic spray painting booth that has a conveyor that moves objects to be painted laterally and a coating gun that paints the objects to be painted in a coating section, the conveyor is covered in a tunnel shape and the coating section is open. A tunnel consisting of a shielding plate, a lifter located below the painting section to lift up the object to be painted, and a movable upper part that covers the upper part of the object to be painted when the object is being lifted by the lifter. An automatic spray painting device comprising a masking and a movable lower masking covering the lower part.