Package making – Methods – Enclosing contents within progressively formed web means
Patent
1982-03-01
1985-10-01
Culver, Horace M.
Package making
Methods
Enclosing contents within progressively formed web means
53140, 53548, 426 5, 426284, 426518, B65B 912
Patent
active
045437696
DESCRIPTION:
BRIEF SUMMARY
FIELD OF THE INVENTION
The invention is concerned with a method and apparatus for forming objects of a soft mass, particularly filled candies, chewing gum or the like, in which the rope of material, possibly provided with a soft or liquid filling, is subdivided by squeezing into a first still cohesive chain of objects which are subsequently completely separated.
DESCRIPTION OF THE PRIOR ART
In the forming and wrapping of candies the individual pieces are formed first from a rope of material prior to being molded and subsequently wrapped. In case of objects filled with a liquid or soft filling the difficulty arises that the liquid filling escapes in the cutting operation. It is therefore known to squeeze the rope of material at two consecutive subsequent cutting points to such an extent that the walls of the cover opposite each other are lying on top of each other and the liquid filling is enclosed in the cover between these two compressed spots. Such a method and an apparatus suitable for it has for instance become known from the German Pat. No. 11 96 056.
In this known apparatus the rope of material is tangentially fed to an embossing wheel which has on its circumference several consecutive chambers which are bounded by axially oriented squeezing strips, movable against each other to compress the rope of material in spots and form it into a continuous chain of filled candy pieces. The pieces present between the squeezing strips are then axially pressed into the mold openings arranged in the molding wheel, in which operation the bridges remaining between the pieces are torn off. The subsequently ejected candies arrive then at random on a discharge conveyor, where they have first to be rearranged before they can be transported one after the other to a wrapping machine.
When the candies, still cohering in a chain, are inserted into the mold openings, the danger exists that the compressed seams between the surfaces of the cover lying upon each other tear or open and the liquid filling can totally or partially escape, which is undesirable and leads to dirtying of the machinery which hereby becomes quickly incapable of functioning properly and has to cleaned. It is moreover difficult to rearrange the candies arriving at random on the discharge conveyor before they can be fed over more or less long paths to the wrapping machine which wraps the individual candies.
BRIEF SUMMARY OF THE INVENTION
It is the task of the invention to provide a very simple method and a robust, very fast working apparatus of the kind explained in detail at the beginning with which can be produced objects of a soft mass, particularly such objects provided with a soft or liquid filling, which immediately upon being separated can be immediately packed, i.e. wrapped one after the other. In such an arrangement a particularly simple transportation by the molding and separating machine is necessary. The construction has to be of such a nature that a liquid or pasty filling in the soft rope of material cannot escape while it is separated or after it has been cut into individual pieces.
This problem is solved according to the invention by a method in which one piece after the other is simultaneously squeezed at its rear end (in feed direction) and separated at its front end (in feed direction) from the preceding piece, which cut-off piece is subsequently pushed transversely to the feed direction of the rope of material directly into a wrapping station.
This construction has the advantage that a substantially higher traveling speed is made possible than by the known methods, since the rope of material formed into chain is transported for the severing operation in the same direction and does not go through a reversal of direction until each piece to be wrapped has been separated from the rope.
Each piece is formed in a single operation with a constriction and a cut, in which setup the cutting always takes place at an already constricted spot, but proceeds in the same direction as the squeezing procedure.
The object can be molded while its e
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Culver Horace M.
Rose Verpackungsmaschinenfabrik Theegarten
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