Agitating – Rubber or heavy plastic working – With specified feed means
Patent
1994-01-10
1995-08-15
Jenkins, Robert W.
Agitating
Rubber or heavy plastic working
With specified feed means
99289D, 222218, 366 77, B29B 106, A21C 504
Patent
active
054413427
DESCRIPTION:
BRIEF SUMMARY
The invention relates to an apparatus for kneading portioned dough pieces in which dough, if desired already portioned, is filled at a filling station, particularly a portioning station, into receiving openings on the periphery of a drum that is stepwisely rotatable by a drive means around a horizontal axis, which receiving openings are spaced apart from each other in equal distances along the periphery of the drum, wherein the dough pieces positioned within the receiving openings are kneaded by a kneading tool that is positioned on the periphery of the drum at a kneading station displaced in direction of rotation of the drum with respect to the filling station and is driven by an excenter pin to a circular motion, and thereafter are ejected from the receiving openings at a deposit station displaced relative to the kneading station in direction of rotation of the drum by pistons displaced in the receiving openings by means of a guide means, and wherein preferably the volume of the amount of dough introduced into the receiving openings can be selected by varying the position of the pistons within the receiving openings at the filling station.
Such apparatus are known (for example AT-PS 341 970). The known apparatus has four rows of receiving openings disposed in equal distances around the periphery of the drum, that is displaced with respect to each other for an angle of 90.degree., wherein the stepwise drive of the drum causes a rotation of the drum for also 90.degree. per step. Within the known apparatus, a portioning station is disposed at the one side of the drum, in which station the dough is pressed into the receiving openings by means of a pusher member and is portioned by means of a shearing edge when the drum moves again. In the region of the summit of the drum the kneading station is positioned at which the dough piece is brought into a ball-like shape. At the other side of the drum the deposit station is positioned at which the dough pieces are ejected from the receiving openings. By the guide means the pistons can be retracted at the portioning station for sucking-in the dough. By varying the amount for which the pistons are retracted at the portioning station, the volume of dough that can be accommodated by the receiving opening, can be varied, what means an adjustment of the volume or, respectively, weight of the portioned dough pieces. However, at the known apparatus the range of the weight adjustment cannot be chosen too great, because the relative amendment of the starting position or, respectively, end position of the pistons within the receiving openings at the portioning station influences the circumstances at the kneading station and also at the deposit station.
The invention has at its object to increase the range of variation for the weight of the dough portions without that the circumstances at the kneading station and at the ejecting station of the dough pieces are deteriorated. The invention solves this task by the features that the receiving openings are disposed in at least two different sizes alternating with each other in peripheral direction of the drum and that the steps of rotation movement of the drum correspond to the distance of two neighbouring receiving openings of equal size, measured in peripheral direction of the drum, wherein a change-over means for rotation of the drum for the distance of two different receiving openings is associated to the drive means for rotation of the drum, so that in the intervals between the drum steps always receiving openings of equal size, however selectable size, face the filling station, the kneading station that is common for all sizes of the receiving openings, and the deposit station, and that the radius of the circular movement of the kneading tool can be varied by changing the eccentricity of the eccentric pin. The provision of different sizes of the receiving openings of the drum ensures the possibility to treat two dough volumes that are different from the beginning, noting that, provided that the initially described principal of
REFERENCES:
patent: 3733058 (1973-05-01), Konig
patent: 4210402 (1980-07-01), Schroper
patent: 4580903 (1986-04-01), Ihler
patent: 4684040 (1987-08-01), Jonovice
Konig, deceased Helmut
Konig, legal representative by Elisabeth
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