Coating drying device and coating drying method

Abstract

A paint drying device (1) for applying paint to the above-mentioned automobile body (B) while transporting a car body (B) with side doors (D1, D2) attached to a body shell body (B1) via hinges (H1, H2). The wet coating film of the vehicle body is dried, wherein, a drying furnace main body (10) and a hot air generation and supply unit (20) for supplying hot air into the drying furnace main body are provided, and the drying furnace main body (10) is configured to include: a side width (W3) The first furnace body (121) corresponding to the vehicle body width (W1) of the state of closing the side car door; the side width (W4) corresponds to the vehicle body width (W2) of the state of opening the side door A second furnace body (122) having a wide side width (W3) of the first furnace body.

Description

technical field [0001] The present invention relates to a coating drying device and a coating drying method. Background technique [0002] In the painting line of automobile body, in order to improve productivity and uniform color tone, electrodeposition coating, intermediate coating and top coating, anti-corrosion Various treatments such as rust treatment. In the intermediate coating and top coating, the car body to be coated is placed on the painting trolley, and the paint is applied while being transported in the painting room, and then carried into the coating drying oven for wet coating. Heat dry. The coating drying device used in the coating line is equipped with a hot air intake duct in a channel-shaped drying furnace body, and blows hot air to the entire body of the car conveyed in the drying furnace body to heat and dry the wet coating film (Patent Document 1 ). [0003] prior art literature [0004] patent documents [0005] Patent Document 1: (Japanese) Unex...

AI Technical Summary

Problems solved by technology

However, in the existing paint drying equipment, compared with the outer panel portion where hot air is easily blown, in terms of the structure of the car body, it is difficult for hot air to turn into the narrow portion around the hinge of the door.

Therefore, there is a problem that it is difficult for the narrow part to satisfy the above-mentioned quality assurance standard of keeping at 140°C for 20 minutes.

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