JPS60129163A - Automatic painting method - Google Patents

Abstract

PURPOSE:To improve quality of a painted product and to remove easily paint mists by putting an auxiliary plate having adsorptivity on a pallet for conveyance and coating a paint to the material to be coated under transfer by said pallet. CONSTITUTION:When an auxiliary plate material 8 is put on a pallet 1 for conveyance, the base plate 2 of the pallet 1 is covered by the box-shaped corrugated board 9 thereof and the guide pins 3 of the pallet 1 are covered by the corrugated board 10 by which the material 8 is positioned on the pallet 1. When a plastic injection molding 4 as a material to be coated is thereupon positioned by the pins 3 and is transferred in an arrow (a) direction, the paint injected from a nozzle 5 is coated on said molding. One cycle ends after a drying stage ends. When paint mists 6 are accumulated on the material 8 by repetition of the above-mentioned operation, the material 8 is simply removed from the pallet 1 and discarded.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention sprays paint ejected from a nozzle onto the object being conveyed by a conveying pallet, thereby forming a coating film on the surface of the object. The present invention relates to an automatic coating method for forming.

Conventional Structures and Problems Generally, when an object to be painted is automatically painted, a conveying pallet is used to convey the object to a nozzle for injecting paint. Fig. 1 shows a conventional automatic coating device. In Fig. 1, numeral 1 is a conveyance pallet, and the conveyor pallet 1 has a plurality of pins 3 protruding from a substrate 2. An injection molded product 4 of Danstick is placed on the tower and transferred toward the nozzle 5 in the direction of arrow A in the figure. The conveying pad 1 is made of a metal material such as aluminum or steel plate in order to remove the accumulated and hardened paint (hereinafter referred to as paint mist) 6 during painting.

However, in such a coating method, the transportation vat L'1. When the paint mist 6 accumulates, the paint mist 6 turns into powder 7 due to the pressure during painting, and the paint mist 6 turns into powder 7 and flies up, reducing the product quality. Therefore, the paint mist 6 must be removed regularly. There must be. There are two ways to remove this, one is to forcefully remove it, and the other is to put it in a solvent and dissolve it. The problem is that it costs a lot of J and is very inconvenient for VC in terms of productivity and cost. In addition, the forced removal method of paint mist as an example of φ product quality deterioration is as follows:
Even if the paint mist 6 is removed, it cannot be completely removed, and it remains on the pallet 1 as a powder, and the injection molded product 4
When painting, the pressure should be 4 to 5! / cpj
) and adhere to the injection molded product 4, resulting in defects due to foreign particles and a significant deterioration in quality.

Purpose of the Invention The present invention solves the above-mentioned conventional drawbacks, and provides an automatic coating method that can improve the coating quality of injection molded products and shorten the time required to remove coating 4 mist. The purpose is to

Structure of the Invention In order to achieve the above object, the automatic painting method of the present invention includes:
For example, a conveying pallet I is formed by an auxiliary plate made of adsorbent material such as cardboard, and the object to be coated is conveyed toward a paint injection nozzle by means of a conveying pallet covered with this auxiliary plate material. It is characterized by: In this type of painting method, the pallet is made up of an adsorbent auxiliary plate and a metal base plate, and when applying paint to the object to be painted, the paint spreads and is applied only to the object to be painted. It is also applied to the pallet.

At this time, the diffused paint can be absorbed by the adsorbent auxiliary plate material, thereby improving the coating quality.

DESCRIPTION OF THE EMBODIMENTS FIG. 2 shows an embodiment of the present invention. In the figure, reference numeral 1 denotes a metal conveying palest, which has a substrate 2 and guide pins 3. Reference numeral 8 denotes an auxiliary plate material made of an absorbent material, which is composed of a box-shaped cardboard box 9 and a cylindrical cardboard box 10. The auxiliary plate material 8 is attached to the transport pants 1
-1, the box-shaped cardboard 9 covers the substrate 2 of the conveying pallet 1, and the cylindrical cardboard 10 covers the guide pins 3 of the conveying pallet 1. Plastic injection molded product as object to be painted 4
is positioned by the guide pin 3 of the conveying pallet 1 covered with the auxiliary member 8, and is transported in the direction of the arrow A shown in the figure.
The paint injected from the nozzle 5 is applied. At this time, the guide pin 3 of the conveying pallet 1 serves as a guide when inserting the cylindrical cardboard 1o of the auxiliary plate material 8,
The box-shaped cardboard box 9 of the auxiliary plate material 8 prevents displacement due to pressure when spraying paint. The injection molded product 4 is attached to the guide pin 3, and one cycle is completed through an automatic painting process and a soot drying process, and this cycle is repeated.

By repeating this cycle, when the paint mist 6 has accumulated on the auxiliary plate 8, as shown in FIG. Discard the board system 8. By discarding it, the removal of the paint mist 6 can be completed with a single touch, and the paint mist powder can also be removed without being generated and scattered, which prevents the deterioration of the coating quality due to the paint mist. can.

Effects of the Invention As described above, according to the present invention, the conveying knot is covered with an adsorbent auxiliary plate material, and the paint is applied to the object to be coated that is transported by the conveying knot. The auxiliary plate material can absorb the injected paint other than the object to be coated, and the coating quality can be improved because the paint mist accumulated on the auxiliary plate material is not scattered.

Further, since the auxiliary plate system on which paint mist has accumulated can be discarded and replaced with a new one, the present invention has the advantage that the paint mist removal time can be shortened.

[Brief explanation of drawings]

Fig. 1 is a block diagram of a conventional automatic painting device, Fig. 2 is a block diagram of an automatic coating device showing an embodiment of the present invention, and Fig. 3 is an exploded view of its main parts.・Palette, 6...Paint mist, 5
...Painting nozzle, 7...Paint mist powder, 8...Ki1 () Auxiliary plate material.

Claims (1)

[Claims] When spraying paint sprayed from a nozzle onto a workpiece that is positioned and transported on a metal transport pallet, it is a suction device that covers the positioning surface of the transport pallet on the workpiece. An automatic painting method characterized by absorbing excess paint by an auxiliary plate made of a durable material.