Drier

Abstract

The invention relates to a drier (1) for drying objects, in particular painted vehicle bodies or add-on parts, comprising a drier chamber (11) inside a drier housing (2) in a known manner. An inner atmosphere having a temperature that is elevated relative to the outer atmosphere is present in the drier chamber. An inlet lock (7) and an outlet lock reduce the inflow of the outer atmosphere into the drier chamber (11) and the outflow of the inner atmosphere into the outer atmosphere. The inlet lock (7) comprises a first air curtain (8), which extends over the entire width of the inlet lock (7) and which runs upward, and a second air curtain (9), which is behind the first air curtain (8) in the direction of motion of the objects and which extends over the entire width of the inlet lock (7) and which runs downward. The outlet lock is designed substantially identically to the inlet lock (7), wherein however the objects first pass through an air curtain directed downward and then pass through an air curtain directed upward. The conveyor system is advantageously designed in such a way that the objects are moved continuously and at a substantially constant height through the entire drier housing (2). Said drier (1) is cheaper to produce and operate than traditional driers that use as A-locks.

Description

technical field [0001] The invention relates to a dryer for drying objects, in particular painted vehicle bodies or accessories, having: [0002] a) Dryer shell; [0003] b) a dryer chamber arranged in the dryer housing, in which there is an internal atmosphere having an elevated temperature relative to the external atmosphere; [0004] c) an input gate and an output gate which reduce the inflow of external atmosphere to the drying chamber and the outflow of internal atmosphere to external atmosphere; [0005] d) A conveyor system guiding objects through the input lock, the drying chamber and the output lock. Background technique [0006] "Drying" is understood here not only to remove liquids, in particular solvents, or to crosslink the green paint, but also to mean the gelling and so-called "baking" of the powder paint. [0007] In all dryers, the entry and exit of objects into and out of the real dryer chamber is accompanied by energy losses of greater or lesser magnitu...

AI Technical Summary

Problems solved by technology

[0008] The disadvantage of the known dryers operating with the A lock is that a lifting device is required, which represents an increased equipment investment

In addition, the disadvantage is that the continuous passage of the objects to be dried is not possible, but is interrupted by two vertical movements in the input and output gates

This reduces the productivity achievable with the dryer

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