FR2643226A1

FR2643226A1 - Improvement to an appliance for metering bread dough

Info

Publication number: FR2643226A1
Application number: FR9001867A
Authority: FR
Original assignee: Individual
Current assignee: Individual
Priority date: 1989-02-22
Filing date: 1990-02-16
Publication date: 1990-08-24
Also published as: ES2017119A6

Abstract

Appliance for metering bread dough, of the type comprising a hopper the bottom of which consists of the lateral surface of a drum given an alternating oscillating movement, the said drum having a diametral cavity which passes right through it and inside which a piston 1 is housed. This piston 1 moves back, sucking in the dough to be metered when the cavity of the drum is substantially vertical and moves forward, expelling the dough, when the cavity of the drum is substantially horizontal. This appliance comprises, also fixed to its supporting structure, a stop-piece 5 which, by acting on the peg 3 secured to the rod 4 of the piston 1, when the latter is at the end of its suction movement, prevents it from moving back owing to the elasticity of the dough, when the said peg 3 loses contact with the hooking snout which would force it to descend.

Description

PERFECTIONNEMENT A UN APPAREIL DOSEUR DE PATE A PAIN. IMPROVEMENT ON A BREAD DOSE DISPENSER.

La présente invention a pour objet un perfectionnement des appareils doseurs de pâte à pain.The present invention relates to an improvement of bread dough metering devices.

On connaît des appareils doseurs qui comprennent une trémie de chargement de la pâte dont le fond est constitué par la surface latérale d'un tambour cylindrique d'axe transversal.Dosing devices are known which comprise a hopper for loading the dough, the bottom of which is formed by the lateral surface of a cylindrical drum with a transverse axis.

Ce tambour est actionné par un mécanisme qui lui communique un mouvement alternatif (de 90 environ) autour dudit axe.This drum is actuated by a mechanism which communicates an alternating movement (of about 90) around said axis.

Ce tambour est traversé de part en part par une cavite diamétrale, à l'intérieur de laquelle est logé un piston.This drum is traversed right through by a diametrical cavity, inside which is housed a piston.

Dans une des positions extrêmes du tambour, cette cavité se trouve en face de la trémie et le piston peut, en descendant, aspirer la pâte vers l'intérieur de la cavité.In one of the extreme positions of the drum, this cavity is located opposite the hopper and the piston can, while descending, suck the dough towards the interior of the cavity.

Dans l'autre position extrême, ladite cavité se trouve face au dispositif d'évacuation et le piston peut expul ser, dans la direction de ce dispositif, au moins une partie de la pâte aspirée auparavant. Ce dispositif d'évacuation comprend un patin articulé sur lequel glisse une cheville solidaire de la tige du piston Lorsqu'on modifie la position dudit patin, on obtient également une modification du volume (ou poids) des portions de pâte dosées.In the other extreme position, said cavity is facing the evacuation device and the piston can expel, in the direction of this device, at least part of the dough previously sucked. This evacuation device comprises an articulated pad on which slides a dowel secured to the piston rod. When the position of said pad is modified, a change is also obtained in the volume (or weight) of the portions of dough dosed.

Dans les appareils connus de ce type, le mouvement alternatif du tambour est obtenu grâce à un mecanisme comprenant un disque ou un levier exécutant un mouvement rotatif continu qui est transformé en un mouvement alternatif au moyen d'un système bielle-manivelle.In known devices of this type, the reciprocating movement of the drum is obtained by means of a mechanism comprising a disc or a lever performing a continuous rotary movement which is transformed into an alternating movement by means of a connecting rod-crank system.

D'autre part, on obtient le déplacement du piston à l'intérieur de la cavité diamétrale du tambour dans la phase d'aspiration de la pâte au moyen d'un bec ou d'un levier qui accroche la cheville solidaire de la tige du piston en lui imprimant un mouvement descendant.On the other hand, we obtain the displacement of the piston inside the diametral cavity of the drum in the aspiration phase of the dough by means of a spout or a lever which hooks the dowel integral with the rod of the piston by giving it a downward movement.

Il se présente parfois l'inconvénient, en particulier lorsque la pâte est très dure ou peu élastique, que le bec qui accroche la tige du piston perd le contact avec celle-ci, et que le piston recule brusquement à cause de ltélasticite de la pâte, ce qui entraine des variations dans le volume de la pâte à doser.There is sometimes the disadvantage, in particular when the dough is very hard or not very elastic, that the beak which hangs on the piston rod loses contact with it, and that the piston recedes suddenly because of the elasticity of the dough , which causes variations in the volume of the dough to be dosed.

La présente invention évite cet inconvénient Pour empêcher le piston de reculer à cause de l'élasticité de la pâte, on incorpore dans l'appareil une butée fixée sur le bâti de celui-ci.The present invention avoids this drawback. To prevent the piston from rolling back because of the elasticity of the dough, a stop fixed to the frame thereof is incorporated into the device.

Lorsque le bec termine sa course descendante en entrai- nant la cheville de la tige du piston, cette cheville se trouve immédiatement sous la butee mentionnée ci-dessus.When the spout ends its downward stroke by driving the pin of the piston rod, this pin is immediately below the abovementioned stop.

Cette butée fait obstacle au retour du piston. Cette butée de retenue est reliée par une extrémité au bâti, au moyen d'une articulation qui l'autorise à se déplacer autour d'un axe, et elle est solidaire, par son autre extrémité, du patin de réglage du poids, de manière telle qu'elle- suit le mouvement de celui-ci, en se plaçant automatiquement à une distance sensiblement-constante par rapport à celui-ci.This stop prevents the return of the piston. This retaining stop is connected by one end to the frame, by means of an articulation which allows it to move around an axis, and it is integral, by its other end, with the weight adjustment pad, so such that it follows the movement thereof, automatically placing itself at a substantially constant distance from it.

La compréhension de l'invention sera facilitee grâce au dessin annexé qui illustre, uniquement à titre d'exemple, un mode d'exécution de la présente invention.Understanding the invention will be facilitated by the appended drawing which illustrates, by way of example only, an embodiment of the present invention.

La figure unique est une vue schématique en
élévation laterale des mécanismes qui consti
tuent l'appareil.The single figure is a schematic view in
lateral elevation of the mechanisms which constitute
kill the device.

Le déplacement sensiblement vertical du piston 1 est effectué au moyen d'un bras de levier 2 qui déplace la cheville 3 solidaire du piston 1 au moyen de la tige 4. A la fin de ce mouvement, la cheville 3 est placée sous la butée 5 qui empêche un retour de la cheville 3 et, par consequent, du piston 1 duquel ladite cheville est solidaire.The substantially vertical displacement of the piston 1 is effected by means of a lever arm 2 which moves the pin 3 secured to the piston 1 by means of the rod 4. At the end of this movement, the pin 3 is placed under the stop 5 which prevents a return of the pin 3 and, consequently, of the piston 1 of which said pin is integral.

La butée 5 possède, à une de ses extrémités, un boulon 6 qui s'engage dans le bâti de 11 appareil, et l'autra extrémité de la butée est reliée à un élément 7 muni d'un trou allongé 8 dans lequel s'engage l'extrémité du boulon 9 qui unit la portion supérieure 10 à la portion inférieure il du patin articulé de réglage du poids, de manière telle que, lorsque ce patin change sa position, la butée 5 change également de position et se maintient ainsi à une distance sensiblement constante par rapport au patin.The stop 5 has, at one of its ends, a bolt 6 which engages in the frame of the device, and the other end of the stop is connected to an element 7 provided with an elongated hole 8 in which s engages the end of the bolt 9 which unites the upper portion 10 to the lower portion 11 of the articulated weight adjustment pad, so that, when this pad changes its position, the stop 5 also changes position and thus remains at a substantially constant distance from the skate.

Des modifications peuvent être apportées à cette inven tison pour autant qu'elles n'affectent, changent, altèrent ou modifient les caractéristiques essentielles du dispositif décrit. Modifications can be made to this invention as far as they do not affect, change, alter or modify the essential characteristics of the device described.

Claims

1. Improvements made to bread dough metering devices of the type comprising a hopper, the bottom of which is formed by the lateral surface of a drum driven by an alternating oscillating movement, said drum having a diametrical cavity which passes through it right through and inside which is placed a piston (1); said piston (1) moves back while aspirating the dosing paste when the drum cavity is situated substantially vertically and advances by expelling the paste when the drum cavity is substantially horizontal, characterized in that they comprise, fixed to the frame of the apparatus, a stop (5) which, by acting on the pin (3) integral with the rod (4) of the piston (1), prevents the latter from moving back due to the elasticity of the dough when said ankle (3) loses contact with the hooking spout which forced it to descend.

2. Improvements made to bread dough metering devices according to claim 1, characterized in that said retaining stop (5) is connected by one of its extremities to the frame, by means of a joint which authorizes it to move around an axis to take the appropriate position relative to the position of the pad (11) for adjusting the weight of the dough that one wishes to obtain.

3. Improvements made to bread dough metering devices according to claims 1 and 2, characterized in that the retaining stop (5) is, by its end opposite the articulated end, integral with the shoe (11) of adjustment of the weight, so as to follow the latter in its movements by automatically placing itself at the correct distance relative to the pad (11) when the latter assumes a new position.