Conveyors: power-driven – Conveyor section – Having means to enhance the friction or adherence between...
Patent
1995-07-06
1996-12-24
Bidwell, James R.
Conveyors: power-driven
Conveyor section
Having means to enhance the friction or adherence between...
198853, B65G 1542
Patent
active
055866409
DESCRIPTION:
BRIEF SUMMARY
The invention relates to a conveyor chain for the conveying device of a slice depositing device on a slicing machine for sausage, meat, cheese or the like, comprising chain links which are formed in one piece from wire together with tips projecting vertically from the belt chain and receiving slices of the cut product, wherein the chain links each have a U-shaped central part designed symmetrically to the longitudinal direction of the chain and having a crossbar and two legs adjoining the crossbar on opposite sides thereof, these legs bearing loops integrally formed at their free ends.
BACKGROUND OF THE INVENTION
Semiautomatic or fully automatic slicing machines of this type are provided essentially with a rotating circular cutter blade, a reciprocating feed carriage receiving the product to be cut, a depositing device for the cut slices, consisting of a deflecting, a conveying and a knock-off device, as well as a movable stacking table (cf., e.g., DE-AS 19 6 069 and DE-PS 17 57 766).
The slices of the product which are cut off by the circular cutter blade are taken over onto the conveying device by means of the deflecting device, the conveying device being provided with a plurality of tensioned, belt-like conveyor chains which are equipped with needle-like tips, are parallel to one another and extend around two axes of deflection in horizontal direction in a chain frame.
The conveying device brings the slices of the cut product from the take-over position into the deposit position in a controlled movement and withdraws them from the tips in a circular, stopped movement with the aid of a rake-like knock-off device dipping between the conveyor chains in a rest position and deposits them on the table in a stacked or shingle-type arrangement in rows or over the entire surface (cf., e.g., DE-GM 77 04 685 and DE-PS 27 07 534).
Conveyor chains of the type described are known per se. They consist of a certain number of chain links bent out of nonrusting wire and connected together by bent loops, wherein these links are provided at specific intervals with entraining tips projecting vertically to the direction of conveyance, the cut product to be conveyed being speared on these tips and taken along to the place of deposit.
In the case of conveyor chains which have been in practical use for many years, the entraining tips are welded centrally onto the straight crossbars of the individual chain links vertically to the direction of conveyance.
This construction does, however, have the disadvantage that the welding process is complicated, necessitates a subsequent, chemical treatment of the surfaces and can lead to thermal stresses and undesired structural changes at the point of welding so that when subject to continuous stressing individual entraining tips can become detached or break off and remain in the cut product which can lead to injuries.
To avoid these disadvantages, a further development of this embodiment has, in the meantime, provided for the use of integral chain links which are known per se and are formed from a single piece of wire. A prior, known proposal along these lines (cf., e.g., DE-GM 91 03 801.4) does, however, have the disadvantage that it would be problematic from the point of view of production or bending technology, i.e. could be realized only with considerable tool resources, and has not so far led to any acceptable practical results with respect to its use.
The object underlying the invention is to avoid the disadvantages described and to propose chain links or conveyor chains which are satisfactory from the point of view of production and use, can be manufactured inexpensively and, in particular, treat the cut product with care.
The advantages achieved hereby will be explained at the end of the description of the embodiments for the sake of better understanding.
BRIEF DESCRIPTION OF THE DRAWINGS
One embodiment of the invention is illustrated in the drawings and described in more detail in the following. In the drawings:
FIG. 1 is a plan view of the conveyor chain illustrated in sect
REFERENCES:
patent: 180253 (1876-07-01), McFadden
patent: 2070362 (1937-02-01), Kreutz
patent: 2426794 (1947-09-01), Sjostrom
patent: 2977266 (1961-03-01), Sedgley
patent: 4216690 (1980-08-01), Bullock
patent: 5065860 (1991-11-01), Faulkner
Bidwell James R.
Bizerba-Werkr Wilhelm Kraut GmbH & Co. KG
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