Agitating – Rubber or heavy plastic working – Stationary mixing chamber
Patent
1994-09-14
1996-01-09
Cooley, Charles E.
Agitating
Rubber or heavy plastic working
Stationary mixing chamber
366100, 366203, 366288, A21C 102, A21C 114
Patent
active
054823668
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND AND SUMMARY OF THE INVENTION
The invention relates to an apparatus for stirring and, respectively, or kneading dough, comprising a frame having a seat into which a receptacle for the dough can be inserted and in which the receptacle in its inserted position can be lifted by a lifting means along guide means into a position in which at least one tool carried by the frame for stirring and, respectively, or kneading the dough extends into the receptacle that cannot be rotated in this position, each tool being driven by a drive means carried by the frame to a revolving or kneading motion, at least one tool being eccentrically with respect to the axis of the receptacle supported within a tool carrier for relative motion with respect to it, which tool carrier being rotatable by a drive means relative to the receptacle around the axis thereof and in the lifted position of the receptacle forming a closure cover for the upper opening of the receptacle, and wherein the frame comprises a collar against which the edge of the upper opening of the receptacle is lifted for reaching its lifted position. Such an apparatus is known from GB-A 2 015 362.
Numerous apparatus are known for stirring or kneading of dough. The usual construction of mixing machines comprises a spiral member as the tool which is driven via the machine head, a machine support being lifted so that the mixing vat which can be separated from the apparatus frame, can be drawn out. Within other apparatus, the mixing head is not liftable in vertical direction, but can be swung open to the rear. Such apparatus have the advantage that the treated dough can be conveyed by means of the receptacle so that the dough can be transported to another working place of the bakery in a time-saving manner. Only within apparatus for treating smaller amounts of dough, the receptacle cannot be carried out but is stationarily fixed to the frame. If the tools necessary for treating the dough are not liftable, they hinder taking out the finished dough.
For a heavy industrial machine it is known to prepare the dough to be treated within a trough, kneading tools being horizontally disposed. For the discharge of the dough, the trough is tilted around a horizontal axis.
There is also known an apparatus in which a receptacle which can be carried by means of a chassis can be carried towards the frame into its seat and by a hydraulic means can be brought into the working position in which mixing tools disposed in the machine head engage into the receptacle (Prospectus Collette High Speed Mixers).
With the exception of the said heavy industrial machine, these known mixing machines have the disadvantage that the force flow leads via mixing tool, mixing machine support, connection thereof to the receptacle and via the dough mass again back to the tool. Therefore, all connection elements must be constructed very heavy and strong fixing means must be provided between receptacle and mixing machine support in order to meet the considerable forces created during mixing. Also the receptacles themselves must be constructed so strong that also their receptacle walls can meet the forces created. Nevertheless, in practice there again and again happen deformations, even if sometimes support rollers are provided on the support member, against which the wall of the receptacle is abutted for the purpose to avoid the said deformations.
The latter disadvantage is moderated within a construction of the initially described kind by bearingly supporting the tool carrier on a bridge bridging the collar of the frame. Thereby, the forces indeed to not flow via the receptacle, but the bridge increases the constructional height of the apparatus and considerable bending forces act onto rotational bearing of the tool carrier by the reaction forces introduced by the tool. The invention has at its object to design an apparatus of the initially described kind in which the said stresses are considerably moderated and in which, in comparison to the last mentioned known apparatus, the constructional height i
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Konig, administratrix by Elisabeth
Konig, deceased Helmut
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