DRYING CONVEYOR

• US 3,557,938 A
• Filed: 04/24/1968
• Issued: 01/26/1971
• Est. Priority Date: 05/23/1967
• Status: Expired due to Term

• Current Assignee: Magnemag Hagou A/S
• Original Assignee: Christensen Egon Verner
• Inventors: CHRISTENSEN EGON VERNER
• Application Number:
  US04/723,819
• Time in Patent Office: 1,007 Days
• US Class Current: 198/851
• CPC Class Codes: F26B 15/14 the objects or batches of materials being carried by trays or racks or receptacles, which may be connected to endless chains or belts trays, racks per se F26B25/18; with vertical movement F26B15/22
• CPC Class Codes: F26B 25/004 in the shape of discrete sheets wicket conveyors F26B15/085

Abstract

Drying Conveyor for use in combination with an automatic painting plant for plate-shaped objects, said objects being carried in the painting plant by means having points of contacts cooperating with edges of said objects, said points of contacts defining a horizontal plane for the movement of the object; said drying conveyor having a carrying frame being provided with lifting means which are displaceable and adjustable in vertical direction in relation to the support of the carrying frame in dependence of the width of the plate-shaped objects and their position in the drying conveyor for bringing the moving plateshaped objects to flush with said horizontal plane.

Claims

1. Drying conveyor for use in combination with an automatic painting plant for plate-shaped objects, the said conveyor having an endless conveying path provided with a number of parallel carrying members for the plate-shaped objects, the said carrying members being supported at right angles to the direction of movement of the conveyor by a horizontal carrying frame, and while the objects are being conveyed, said carrying members are resting in local contact with the side edge portions of the objects parallelly with the direction of movement of the objects, said carrying frame is provided with fluid-operated lifting cylinders which are displaceable and adjustable in vertical direction in relation to the support of the carrying frame and at least one of the lifting cylinders has fluid control means and being provided with a rack mounted parallelly with the direction of displacement of the pressure rod, one end part of the said rack being attached to the displaceable pressure rod of the lifting cylinder, while a gearwheel engaging the rack is rotatably mounted in the stationary part of the lifting cylinder and is mechanically coupled to an electric potentiometer which has a tap that may be rotated by the gearwheel and the position of which tap is an indication of the height to which the lifting cylinder is adjusted, the outer terminals of the said potentiometer and the said tap being connected to another potentiometer incorporated in an electric bridge circuit which has a source of current and a zero indicator, the said other potentiometer having a rotatable tap which is adjustable in dependence of the width of the plate-shaped objects and their points of contact with supporting edges of the carrying members to determine the height to which the lifting cylinder is adjusted, the zero indicator of the bridge circuit being connected to the fluid control means for the lifting cylinder.

2. Drying conveyor as claimed in claim 1, in which at least one of the carrying members of the drying conveyor, and preferably that carrying member which is leading in the direction of movement of the plate-shaped member, consists of at least one rotatable cylindrical roller whose shaft is adjustable in a vertical plane at right angles to the direction of conveyance and is lying obliquely in such a manner that the upper generatrix of the roller is located substantially in the identical plane as one of the tangents to the supporting edge of the remaining carrying members.