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Device-for-rolling-up-pieces-of-material

Foam egg carton

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Device for rolling up pieces of material

Details

Inventors: Lundgren, Bror F.;
Assignee: Societe d'Assistance Technique pour Produits Nestle S.A. (Lausanne, CH)
Primary Examiner: Hoag; Willard E.
Assistant Examiner:
Attorney, Agent or Firm: Vogt & O'Donnell

The invention relates to a machine for rolling pieces of soft material in leaf form, more particularly food products, such as pancakes. According to the invention, the pieces of material are delivered on a substantially horizontal conveyor belt (1) and are brought into contact with at least one other conveyor belt (8) which crosses the first conveyor belt and has an oblique upward movement relative to the direction of movement of the first conveyor belt. The two belts (3, 9) of the two conveyors are formed by several cords or strings (4, 10) which are parallel to one another and spaced apart from one another, the belt (9) of the second conveyor crossing the horizontal belt (3) of the first conveyor by passage of its cords or strings through the spaces between the cords and strings of the first conveyor.

DETAILED DESCRIPTION OF THE DRAWINGS FIG.
1 illustrates a first embodiment of a machine according to the invention.
A first horizontal endless belt, which is generally denoted by the reference 1 and which is driven by a motor 2, is formed by a conveyor belt 3 comprising a number of cords or strings which are spaced apart from one another and one of which is denoted by the reference 4.
The cords or strings travel around a drive roller 5 and a guide roller 6, these rollers being provided with peripheral grooves for guiding the cords or strings.
The cords or strings are additionally guided by means of guide pins shown diagrammatically at 7 which are arranged in the manner of a comb to pass through the spaces between the parallel cords or strings.
If necessary, the horizontal flight of the belt may also be supported by one or more flat support plates or by several support rollers, although these are not shown in the drawing.
A second endless belt, which is generally denoted by the reference 8, is formed like the first endless belt by a conveyor 9 of parallel cords or strings which are spaced apart from one another and one of which is denoted by the reference 10.
This conveyor is driven by a motor 11 via a drive roller 12 and a guide roller 13 and also via one or more additional guide rollers the arrangement of which depends upon the way in which the belt is guided and which are not shown in the drawing.
These rollers are also provided with peripheral grooves for guiding the cords or strings which are also guided by means of guide pins arranged in the form of a comb which are shown diagrammatically at 14 and which pass through the spaces between the cords or strings.
Additional sets of guide pins may be provided at suitable places for the two belts should this prove necessary for ensuring the parallelism of the cords or strings and a constant spacing between them.
According to the invention, the second belt is arranged in such a way that it crosses the first horizontal belt.
To this end, the cords or strings of the second belt pass through the spaces between the cords or strings of the first belt

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