WO1999066800A1 - Procede de dosage en poids de portions de pate a pain et machine permettant sa mise en oeuvre - Google Patents

Procede de dosage en poids de portions de pate a pain et machine permettant sa mise en oeuvre Download PDF

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Publication number
WO1999066800A1
WO1999066800A1 PCT/ES1999/000190 ES9900190W WO9966800A1 WO 1999066800 A1 WO1999066800 A1 WO 1999066800A1 ES 9900190 W ES9900190 W ES 9900190W WO 9966800 A1 WO9966800 A1 WO 9966800A1
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WO
WIPO (PCT)
Prior art keywords
hopper
mass
cylinder
block
blade
Prior art date
Application number
PCT/ES1999/000190
Other languages
English (en)
Spanish (es)
Inventor
Jaime Torrents Rius
José TORRENTS MARCE
Original Assignee
Industrias Torrents, S.A.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Industrias Torrents, S.A. filed Critical Industrias Torrents, S.A.
Publication of WO1999066800A1 publication Critical patent/WO1999066800A1/fr

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Classifications

    • A—HUMAN NECESSITIES
    • A21—BAKING; EDIBLE DOUGHS
    • A21C—MACHINES OR EQUIPMENT FOR MAKING OR PROCESSING DOUGHS; HANDLING BAKED ARTICLES MADE FROM DOUGH
    • A21C5/00—Dough-dividing machines
    • A21C5/02—Dough-dividing machines with division boxes and ejection plungers

Definitions

  • the present invention concerns a method for the dosing by weight of portions of dough, especially for the dosing by weight of portions of bread dough, and a corresponding machine for its implementation.
  • a suitable method for producing dosed portions by weight is to perform a pre-homogenization of the dough to provide it with a known uniform density, before proceeding to determine its volume and weight.
  • EP-A-0003394 describes a method, and a machine for its implementation, for obtaining mass portions dosed by weight in which a piston is provided for compacting a quantity of mass, and sensor means of the pressure, adjustable, to determine the degree of said compaction according to a density of the desired mass.
  • Patent EP-A-0824864 of the same petitioner of the present application, describes a procedure and a corresponding machine for the production of portions dosed by weight, the procedure of which consists of the following steps:
  • step (d) return to the said hopper, by a controlled displacement of the plunger, an amount of excess mass calculated by difference between the weight of the already homogenized mass calculated in step (c) and the weight of the desired portion; and (e) expulsion outside said cylinder, by a total displacement of the piston, of the amount of remaining mass, corresponding to the desired portion.
  • the corresponding machine comprises, in synthesis, a block defining said cylinder, with a crank connecting rod mechanism for moving said piston inside, and means for tilting said block facing successively an open end of said cylinder or an opening of a hopper for storage and mass supply, or to a closing wall, or to an area close to a conveyor belt, including sensing means of the pressure exerted by the mass on the head of the plunger to determine the degree of homogenization thereof.
  • Obtaining the weight is achieved through an electronic calculation in which they are taken into account; an indeterminate amount of mass absorbed by a cylinder; the amount of preselected or preset mass corresponding to the weight of the desired portion to be obtained; as well as the displacements of the piston inside the cylinder to achieve homogenization by compaction of the absorbed mass, and to effect the return of an amount of excess mass corresponding to the difference between the amount of homogenized absorbed mass and the predetermined mass amount , all in accordance with the equivalences between the displacements of the piston and the corresponding impulses provided by a pulse generator, in functional combination with a pressure switch that checks the position of the piston when it reaches a point at its displacement at which the pressure on the mass corresponds to the desired homogenization, and whose displacement will correspond to a number of pulses counted by a pulse counter.
  • an objective of the present invention is to provide such a method and machine provided with purge means to allow air to escape, together with a small amount of mass, from the inside of the cylinder in the stage. of homogenization, in order to guarantee its achievement.
  • a drain hole is provided in the closing wall.
  • a purge opening is formed by means of a communication between cylinder and hopper by an incomplete displacement in the balancing of the block that integrates said cylinder, whereby, in addition to purging the air , the dough that comes out next to it is recovered in the hopper itself.
  • Even more effective is the solution of compacting the dough in the homogenization stage against a portion, provided with bleed holes, of the blade of a cutting blade, the provision of which is detailed below, interposed between cylinder and hopper, is revealed. which, in addition to recovering the projecting mass, displacements of the cylinder integral block are saved.
  • Another object of the present invention is to provide a method and a machine of this type provided with means for cutting and separating the dough at an additional stage immediately after the return stage to the hopper of the amount of surplus and previous mass to the expulsion stage.
  • said return is carried out in two stages according to the following rate:
  • step (di) return a greater part of the excess mass to the hopper by means of a greater part of the piston displacement calculated in step (c);
  • (fl) transversely cut the mass throughout the length of the passage area between the mouth of the cavity and the hopper, by advancing a cutting member such as a blade and keeping the remaining mass in the cavity separated from the remaining mass returned to the hopper by interposing between them a wall provided with one or more holes;
  • step (d2) complete the return to the hopper of the excess dough, through said one or more holes of said interposed wall, by concluding the displacement of the plunger calculated in step (c); Y
  • Figs. the a Id together show a diagram of the different phases of the process of the present invention
  • Fig. 2 is a partially sectioned perspective view showing the cylinder block with the piston and other associated parts and mechanisms
  • Figs. 3 to 5 schematically show, in elevation, the mechanisms of balancing the piston block and the conveyor belt in three different characteristic positions
  • Fig. 6 illustrates, also schematically and in elevation, the cutting blade drive mechanism.
  • Fig. Ib the phase of pressing said mass inside said cylinder 1 is shown by means of said plunger 2 (in this example, against a portion of the blade of a blade 8) until a predetermined pressure value is reached to provide a degree of homogenization of said desired mass, thereby obtaining a mass of known density.
  • the resulting displacement of the piston 2 is worth Xh.
  • displacement control means the position of said piston 2 is determined at the time said predetermined pressure value is reached and the weight of the already homogenized mass contained in said cavity is calculated based on said known mass density and volume it occupies.
  • an amount of excess mass calculated by difference between the weight of the already homogenized mass calculated in step (c) and the weight of the desired portion is returned to said hopper.
  • said return is made in two stages (Figs. Le and Id); by a first displacement Xrl corresponding to a greater part of the displacement of the piston 2 calculated in step (c); and a second offset Xr2 corresponding to the remaining offset.
  • the first displacement Xrl would be carried out through the entire expedited opening between cylinder 1 and the hopper and would be followed by a cutting operation by means of the blade 8, the second displacement Xr2 being carried out through holes of a portion of the blade of said blade 8 interposed between cylinder and hopper, a final cutting of refining of the dough passing through said holes being carried out.
  • the distance Xd corresponding to the amount of mass remaining inside the cylinder corresponds to the desired final portion, dosed by weight, where:
  • Xd Xm - Xh - (Xrl + Xr2) all these distances being determined and / or accurately calculated by means consisting of a pulse generator, a pressure switch and a counter of said pulses.
  • a block 10 can be seen that defines a cylinder 1, linked to the bed by means of a joint 9 aligned along a horizontal axis, whose block 10 is finished off, around an open end of the cylinder 1 by a widened wall 11, the curved convex shape whose outer surface corresponds to that of a portion of a coaxial cylinder to said joint 9 (see Figs. 3 to 5), the shape of the head of a piston 2 coinciding with said surface when It is in its limit position, flush with the open end of the cylinder 1.
  • Said cylinder incorporates a sleeve Ib to avoid friction wear between the walls of the cylinder and the piston 2.
  • Said curved wall comprises a portion, close to the vertical of the joint 9, into which an opening 5a of a hopper 5 (shown in Figs. 3 to 6), and a portion provided with a purge opening (13).
  • the block 10 is capable of adopting an approximately vertical position in which the open end of the cylinder 1 faces the opening 5a of the hopper 5 to take from it an undetermined amount of non-homogenized mass or to return to the same a calculated amount, another inclined position (see Figs. 3 to 6) in which the open end of the cylinder 1 faces said purge opening 13 to allow the exit of air and mass in the execution of homogenization by compaction of the mass contained in the cylinder 1 by means of the piston 2 against said portion of the curved wall, and another inclined position in which said open end is exceeded by the curved wall of the block 12, being close to a conveyor belt 7 to transfer to the same a portion of dough once homogenized and dosed in weigh.
  • Said curvoconcave wall of block 12 comprises, comprising the portion into which the opening 5a of the hopper 5, a uniform recess 14 of edges parallel to said joint 9 of width and thickness substantially equal to that of the blade of a blade 8, for housing thereof and guiding its translation movement, said blade 8 adapting, by flexibility, to the curved shape of said recess 14.
  • said widened wall 11 covers, at least in large part, the recess 14 for the blade 8 in any of the positions adopted by the block 10.
  • a detector 36 of the boundary position of the piston 2 flush with the mouth of the open end is included that of the cylinder 1, which together with a pulse generator 38, for example a decoder associated with the motor shaft 37, which maintains a proportional relationship with the displacement of the piston 2 inside the cylinder 1, they provide to electronic means data referring, respectively, to the zero reference position and to the relative displacement of the piston 2 to perform calculations of the weight of the amounts of homogenized mass contained in said cylinder 1 and the excess amounts to be returned to hopper 5.
  • the connecting rod 3 is formed by at least two related parts by means of a longitudinal sliding guide 41, so that said means for sensing the pressure exerted by the mass on the piston 2 consist of a hydraulic cylinder whose body 39 is integral with one of the parts of said connecting rod 3 while the end of the rod 40 of said hydraulic cylinder is integral with the other of the parts of said connecting rod 3.
  • the means for driving the displacement of the block 10 which in this embodiment has materialized as a balancing movement, comprise a motor-reducer group 15 that drives, through a transmission that includes a cardan coupling 16, a spindle 17 that engages within a threaded hole of a block 18 that is articulatedly linked, to an appendage 19 integral with said block 10, at a point below and away from the axis of the articulation 9 of the block 10, and means for detecting the position 43 to cooperate in the government of said motor-reducer group 15 by electronic means, known per se.
  • a conveyor belt 7 extends between a roller 20 of the pick-up edge and a roller 21 of the delivery edge, whose roller 20 is mounted on a first frame 22 integral with an arm 22a articulated coaxially to the joint 9 of the block 10 while said roller 21 is mounted on a fixed bed and driven by a motor-reducer group 23 provided with a transmission 24.
  • a first tension roller 25 is disposed on said first frame 22 and a second tension roller 26, provided with elastic supports 27, is mounted on a second frame 28 articulated on the axis of the roller 21 of the delivery edge and provided with sliding guides 29 in which the ends of the axis of said roller 20 slide from the collection edge, existing in an intermediate area of said arm 22a a bolt 32 that slides into a sliding guide 33 located at one end of a lever 30 provided, at its other end, with an articulation 31 with respect to said ban each, and in an intermediate zone of a bolt 34 that slides on a cam 35 integral with the block 10.
  • Said cam 35 has a section 35a concentric to the axis of the articulation 9 of the block 10 so that when said block tilts to face the open end of the cylinder 1 to the closing wall 6 the bolt 34 of the lever 30 slides along said section 35a of cam 35 without being affected in its movement.
  • one end of the blade of said cutting blade 8 is integral with a piece 42 provided with slides 44 that slide along transverse guides 45 parallel to the edges of the recess 14 of the curved wall of block 12, whose piece 42 includes an appendix 46 in which, in a perpendicular direction to said guides 45, a bar 47 is connected, connected at its opposite end to a bolt 49, fixed to the bed, by means of a sliding guide 48, whose bar 47 also includes, in its middle zone, another sliding guide 50 in which a bolt 51 of a crank 52 slides driven by a motor-reducer group 53 through a transmission 54.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Manufacturing And Processing Devices For Dough (AREA)

Abstract

L'invention concerne un procédé comprenant une phase d'homogénéisation de la pâte à pain par pression de celle-ci dans une cavité jusqu'à obtention d'une valeur prédéterminée au moyen de purge d'air permettant l'expulsion de bulles d'air et de l'air contenu dans les cavités de la pâte à pain pendant son compactage ; une phase de retour à la trémie de la pâte à pain excédentaire utilisée lors d'une phase initiale de charge, ce retour comprenant une étape de coupe transversale et de séparation de la pâte à pain entre l'embouchure de la cavité et la trémie. La machine comprend, quant à elle, une lame (8) qui peut se déplacer transversalement au moment de l'ouverture (5a) d'une trémie et être mise au niveau de ladite ouverture dotée d'un bord tranchant (8b). On prévoit des moyens de déplacement de ladite lame (8) et des moyens de détection de sa position afin de commander les moyens de déplacement de manière synchronisée avec les mouvements d'autres parties mobiles de la machine.
PCT/ES1999/000190 1998-06-23 1999-06-23 Procede de dosage en poids de portions de pate a pain et machine permettant sa mise en oeuvre WO1999066800A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ES9801414A ES2140351B1 (es) 1998-06-23 1998-06-23 Procedimiento para la dosificacion en peso de porciones de masa y maquina para su implementacion.
ESP9801414 1998-06-23

Publications (1)

Publication Number Publication Date
WO1999066800A1 true WO1999066800A1 (fr) 1999-12-29

Family

ID=8304396

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/ES1999/000190 WO1999066800A1 (fr) 1998-06-23 1999-06-23 Procede de dosage en poids de portions de pate a pain et machine permettant sa mise en oeuvre

Country Status (2)

Country Link
ES (1) ES2140351B1 (fr)
WO (1) WO1999066800A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1397296A (fr) * 1964-03-03 1965-04-30 Bonnet Ets Diviseur volumétrique à débit continu
ES362197A1 (es) * 1968-12-18 1970-12-01 Talleres Balart Sa Maquina divisora de masa de pan.
EP0003394A2 (fr) * 1978-01-24 1979-08-08 Michael Thomas Arthur Herring Procédés et machines de dosage
US4177030A (en) * 1978-05-01 1979-12-04 Amf Incorporated Dough divider
WO1997025868A1 (fr) * 1996-01-15 1997-07-24 Industrias Torrents, S.A. Procede d'obtention du poids d'une portion de pate panifiable, et machine correspondante

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1397296A (fr) * 1964-03-03 1965-04-30 Bonnet Ets Diviseur volumétrique à débit continu
ES362197A1 (es) * 1968-12-18 1970-12-01 Talleres Balart Sa Maquina divisora de masa de pan.
EP0003394A2 (fr) * 1978-01-24 1979-08-08 Michael Thomas Arthur Herring Procédés et machines de dosage
US4177030A (en) * 1978-05-01 1979-12-04 Amf Incorporated Dough divider
WO1997025868A1 (fr) * 1996-01-15 1997-07-24 Industrias Torrents, S.A. Procede d'obtention du poids d'une portion de pate panifiable, et machine correspondante

Also Published As

Publication number Publication date
ES2140351B1 (es) 2000-10-16
ES2140351A1 (es) 2000-02-16

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