Conveyors: power-driven – Conveyor section – Movement of load changed relative to conveyor movement on...
Patent
1998-12-10
2000-08-15
Valenza, Joseph E.
Conveyors: power-driven
Conveyor section
Movement of load changed relative to conveyor movement on...
1984634, 1984596, 1984193, 198360, B65G 4774
Patent
active
061021903
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
The invention generally relates to a device for the transport of objects, whereby the objects are pushed one after the other on a transport plane towards a sinkable stop, which stops each object for a short time, and after a predetermined time interval is lowered, in order to discharge the respective object for further transportation. In this device the intermittent lifting and lowering motions of the stop determine the time, respectively space intervals between objects in direct succession.
In particular the invention relates to a device for the intermittent transport of objects, whereby soft mass layers arranged on their surface or inside them reach up to their frontal sides and for this reason, when the objects are arrested by the stop, they can get stuck with their frontal sides to the bearing surface of the same. Such objects are for instance wafer sheets coated on their upper side with pasty or creamy masses which have not yet hardened, or wafer blocks filled with such masses, such as produced and intermittently transported in plants for the industrial production of filled two-layer or multiple-layer wafers, in the industry producing baked goods, respectively baked wafer items, respectively sweets.
STATE OF THE ART
From the industry producing baked goods, respectively baked wafer goods, respectively sweets, continuously working production installations for the industrial production of filled, two-layer or multiple-layer wafers are known. In the separate sections of these production installations wafer sheets are produced from wafer dough and one part of the baked wafer sheets is coated on the upper side with an edible cream, while the rest of the baked wafer sheets remains uncoated. The coated and uncoated wafer sheets are stacked on top of each other, thereby being joined to two-layer or multilayer wafer blocks filled with cream, which are cooled for the hardening of the cream, and later as cooled wafer blocks are cut into small, filled wafers.
Within such a production installation, the wafer sheets and the wafer blocks made thereof are continuously transported from one section of the production installation to the next section, thereby being adjusted to the respective work rhythm of the following production section. This happens mostly by means of a device for the intermittent transport of these objects, which is integrated in a production section and adjusts the intermittent transport of these objects to the work rhythm of the of the following production section. Within such a device, each object is moved in transport direction, by means of a work machine of the respective production section, or by means of its own transport device, until it reaches a sinkable stop, is arrested by this stop, and after the lowering of the stop is transferred at an adjusted work rhythm to the following production section.
A known device for the intermittent transport of objects comprises a transport device advancing the objects in transport direction on a transport plane, downstream of which in transport direction a sinkable stop is provided with a bearing surface for the frontal side of the objects. The stop is designed as a tongue, which is vertically moved up and down between two stationary scrapers arranged below the transport level and diagonally inclined downwards. The stop is moved back and forth by a mechanism, between an upper position wherein it projects with its bearing surface above the transport level, and a lower position wherein it is lowered below the transport level. While it is lowered, the stop slides along the two scrapers with its frontal and its rear sides, until its upper edge is lowered below the two scrapers. Thereby cream residues stuck to the bearing surface arranged on the front side of the stop are scraped off by the upwards pointing frontal side of the front stop and transferred to the rear scraper. In time cream residues collect and build up on both scrapers, so that when the stop is lifted a portion of the cream residues can be transferred back to the s
REFERENCES:
patent: 4533037 (1985-08-01), Kerr
patent: 4553660 (1985-11-01), Bennett et al.
Haas Johann
Haas, sen. Franz
Koletnik Erich
Dubno Herbert
Franz Haas Waffelmaschinen-Industrie Aktiengesellschaft
Shapiro Jeffrey A.
Valenza Joseph E.
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