Coating apparatus – Immersion or work-confined pool type – With means for moving work through – into or out of pool
Reexamination Certificate
1998-02-13
2001-07-03
Cano, Milton (Department: 1761)
Coating apparatus
Immersion or work-confined pool type
With means for moving work through, into or out of pool
C118S428000
Reexamination Certificate
active
06254681
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to a continuous processing plant for the treatment of workpieces. The plant includes at least one treatment station, for example, an immersion basin, and a conveying device with a guide track in which base bodies are guided. The plant also includes a drive for driving the base bodies and at least one control unit.
2. Description of the Related Art
Continuous processing plants of the above-described type are primarily used for cleaning, and for pretreatment or aftertreatment, particularly for a chemical or physical treatment and/or varnishing of workpieces, wherein the individual types of treatment can be combined in a continuous processing plant.
In known continuous processing plants of the above-described type, for lowering the conveyed workpiece from the conveying plane into an immersion basin, the guide track is lowered accordingly over a certain, non-changeable section of the conveying path. This has the disadvantage that each workpiece is subjected to the same travel with respect to time and geometry, i.e., the same treatment sequence and duration.
SUMMARY OF THE INVENTION
Therefore, it is the primary object of the present invention to provide a continuous processing plant for the treatment of workpieces which ensures for each conveyed workpiece a selective treatment sequence and/or treatment duration.
In accordance with the present invention, each base body includes at least one connecting member suspended from the base body and a support body constructed for receiving at least one workpiece. Each support body is connected in an articulated manner to the respective connecting member. Each connecting member is mounted so as to include a lifting unit to the respective base body. Each lifting unit of each base body includes a control unit for selectively controlling the connecting member.
The novel continuous processing plant according to the present invention permits a selective treatment sequence and/or treatment duration for each workpiece to be treated. This makes it possible for the first time in a continuous processing plant for the treatment of workpieces to differently treat workpieces which follow each other directly; in addition, in many specific cases of application, the present invention makes possible an untimed and steady conveying movement.
The present invention provides the following additional advantages, for example, in the case of a dip-coating plant:
No fixed immersion curves. A variable adjustment in accordance with the immersion behavior and the emptying behavior of the workpieces is possible at the start of the operation or during the production operation solely by changing the software;
Specifically desired pivoting, tilting or lifting movement of the support bodies can be carried out. On the one hand, this makes it possible to counteract any air bubble formation in hollow spaces of the workpieces and, on the other hand, this helps the fluids received in the immersion basins to flow out, so that the transportation of fluid from one treatment station to the next is further reduced;
The workpieces are immersed in a specifically controlled manner, i.e., the position of the workpieces can be optimized during the immersion.
The various features of novelty which characterize the invention are pointed out with particularity in the claims annexed to and forming a part of the disclosure. For a better understanding of the invention, its operating advantages, specific objects attained by its use, reference should be had to the drawing and descriptive matter in which there are illustrated and described preferred embodiments of the invention.
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Abei Peter
Simon Martin
Weinand Hans-Joachim
Cano Milton
Eisenmann Maschinenbau KG
Friedrich Kueffner
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