EP2902180A1 - Stempelvorrichtung vom flash-stempel-typ für seifenstücke zur herstellung von kosmetikseifen, wäscheseifen oder dergleichen - Google Patents

Stempelvorrichtung vom flash-stempel-typ für seifenstücke zur herstellung von kosmetikseifen, wäscheseifen oder dergleichen Download PDF

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Publication number
EP2902180A1
EP2902180A1 EP15152851.0A EP15152851A EP2902180A1 EP 2902180 A1 EP2902180 A1 EP 2902180A1 EP 15152851 A EP15152851 A EP 15152851A EP 2902180 A1 EP2902180 A1 EP 2902180A1
Authority
EP
European Patent Office
Prior art keywords
die
extraction
soap
cavities
formation
Prior art date
Legal status (The legal status 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 status listed.)
Withdrawn
Application number
EP15152851.0A
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English (en)
French (fr)
Inventor
Coriolano Galli
Fabio Binacchi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Binacchi and C Srl
Original Assignee
Binacchi and C Srl
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 Binacchi and C Srl filed Critical Binacchi and C Srl
Publication of EP2902180A1 publication Critical patent/EP2902180A1/de
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
    • B30B15/34—Heating or cooling presses or parts thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B11/00—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses
    • B30B11/02—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses using a ram exerting pressure on the material in a moulding space
    • B30B11/04—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses using a ram exerting pressure on the material in a moulding space co-operating with a fixed mould
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
    • B30B15/0029—Details of, or accessories for, presses; Auxiliary measures in connection with pressing means for adjusting the space between the press slide and the press table, i.e. the shut height
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D13/00—Making of soap or soap solutions in general; Apparatus therefor
    • C11D13/14—Shaping
    • C11D13/18—Shaping by extrusion or pressing

Definitions

  • the present invention relates to a stamping apparatus, of the flash stamping type, for soap bars, for the production of toiletry soaps, laundry soaps or the like.
  • the "die box” method uses an apparatus that is composed of an element known as a star, which rotates about an axis and in which there are cavities that are open on the two opposite faces.
  • a precut piece of soap equal in weight to the desired weight of the stamped piece of soap, is inserted in each one of these cavities, and then two die parts are inserted in said cavity through the two opposite open sides thereof and complete the stamping apparatus.
  • the stamping of the precut soap pieces is performed and the stamped soap pieces are extracted from the cavities by removing the two die parts and by inserting, from one side of the cavities, a mechanically actuated pusher.
  • the stamping apparatuses that operate according to the "die box” method do not have problems during extraction of the stamped pieces of soap from the cavities of the star, since extraction occurs after removing from said cavities the two die parts and by means of a mechanical pusher that is inserted from one side of the cavities and pushes the stamped piece of soap to exit from the opposite side of said cavity.
  • apparatuses that operate according to the "die box” method are used predominantly to stamp pieces of soap that have a very high flat band on their lateral surface, such as for example laundry soaps or the like, and/or particularly sticky soaps.
  • the flash stamping method uses an apparatus composed of a die in which there is a plurality of formation cavities and a complementary die, in which complementary stamping cavities are optionally defined, each complementary stamping cavity defining, together with a corresponding formation cavity, the shape of the piece of soap to be stamped.
  • the complementary die can move on command toward or away from the die in order to close the formation cavities and stamp a precut soap bar, with a weight that exceeds by 25%-50% the weight of the stamped soap pieces to be obtained, which is interposed cyclically between the die and the complementary die, or to open the formation cavities so as to allow the insertion of a bar of soap between the die and the complementary die or the extraction of the stamped pieces of soap from the formation cavities.
  • the excess quantity of soap is evacuated externally from the formation cavities and is removed.
  • extraction of the pieces of soap from the formation cavities after stamping is performed by means of pickup elements provided with suckers and is assisted by the presence, on the bottom of each formation cavity, of an extraction block, which is raised in the direction of the mouth of the formation cavity after said cavity has been opened as a consequence of the spacing of the complementary die.
  • the lifting of each extraction block is performed by means of a pneumatic cylinder, connected by means of its stem to the corresponding extraction block.
  • the lifting of each extraction block is contrasted by a spring that returns the corresponding extraction block to the bottom of the formation cavity when the actuation of the pneumatic cylinder ceases.
  • Apparatuses that operate according to the "flash stamping" method ensure higher productivity and greater management simplicity, since they do not require particular precision as regards the dimensions of the bar of soap to be stamped that is fed to the die and ensure better formation of the stamped pieces of soap and high precision in their dimensions and in their weight.
  • these apparatuses suffer the drawback that they cannot be used to stamp sticky soaps and/or soaps with a very high lateral flat band, such as for example laundry soaps or the like, due to the low effectiveness of the extraction blocks in expelling the stamped pieces of soap from the formation cavities.
  • the aim of the present invention is to solve the problems described above, by providing a stamping apparatus, of the flash stamping type, for soap bars, for the production of toiletry soaps, laundry soaps or the like, that is capable of stamping without problems pieces of soap that have a high lateral band and/or are particularly sticky.
  • an object of the invention is to provide an apparatus that is capable of performing the correct extraction of the pieces of soap from the formation cavities, protecting their integrity.
  • Another object of the invention is to provide an apparatus that offers various possibilities of adjustment, so that it can be used for a wide range of products.
  • a further object of the invention is to provide an apparatus that can be used for the stamping of pieces of soap that currently can be performed only with the "die box” method, so as to allow a reduction of the production costs of these articles.
  • Another object of the invention is to provide an apparatus that ensures high reliability in operation with reduced maintenance interventions.
  • a stamping apparatus of the flash stamping type, for soap bars, for the production of toiletry soaps, laundry soaps or the like, comprising a die provided with a plurality of formation cavities and a complementary die that can move on command toward or away from said die to close said formation cavities and stamp a bar of soap that is interposed between said die and said complementary die or to open said formation cavities and allow the insertion of a bar of soap between said die and said complementary die or the extraction of the stamped pieces of soap from said formation cavities; on the bottom of each one of said formation cavities there being an extraction block, which can move on command toward the mouth of the corresponding formation cavity directed toward said complementary die in order to expel the stamped piece of soap, characterized in that the extraction blocks are connected to a mechanical actuator, which can be actuated to cause the movement of said extraction blocks from an inactive position, in which they are spaced from the mouth of the corresponding formation cavity inside the corresponding formation cavity, to an extraction position, in
  • the apparatus according to the invention in the first embodiment comprises a die 3, in which there is a plurality of formation cavities 2, and a complementary die 4, which can move on command toward or away from the die 3 in order to close the formation cavities 2 and stamp a bar of soap that in each instance is interposed between the die 3 and the complementary die 4 or in order to open the formation cavities 2 so as to allow the insertion of a bar of soap between the die 3 and the complementary die 4 or allow the extraction, from the formation cavities 2, of the stamped pieces of soap 6.
  • the die 3 is fixed to a fixed frame 7, which supports it, and the formation cavities 2 are open upwardly.
  • each formation cavity 2 there is a corresponding complementary cavity 8, which, once the complementary die 4 has been mated with the die 3, defines, in cooperation with the corresponding formation cavity 2, the "shape" of each piece of soap 6 to be stamped.
  • the "shape" of each piece of soap 6 to be obtained is composed almost entirely by the formation cavity 2, defined within the die 3, and only to a small extent by the corresponding complementary cavity 8 defined in the complementary die 4, but the extension of the formation cavities 2 in the die 3 and of the complementary cavities 8 in the complementary die 4 can vary depending on the shape of the pieces of soap 6 to be obtained or on the type of soap to be stamped or on other production requirements.
  • the die 3 Around the mouth 2a, which is directed upwardly in the illustrated embodiments, of the formation cavities 2, the die 3 has adapted chutes and/or ducts 9 for removing the soap that is in excess when the complementary die 4 is mated with the die 3 so as to close the formation cavities 2.
  • the die 3 is provided with centering pins 11, which can be mated with corresponding seats defined in the complementary die 4 in order to achieve the correct positioning of the complementary die 4 when it is moved against the die 3.
  • An extraction block 13 is arranged on the bottom of each formation cavity 2 and can move on command in the direction of the mouth 2a of the corresponding formation cavity 2, which is directed toward the complementary die 4, in order to expel the stamped piece of soap 6.
  • the extraction blocks 13 are connected to a mechanical actuator 14, which can be actuated to move the extraction blocks 13 from an inactive position, in which they are spaced from the mouth 2a of the corresponding formation cavity 2 inside the formation cavity 2, to an extraction position, in which they are moved in the direction of the mouth 2a of the corresponding formation cavity 2 with respect to the inactive position, and vice versa.
  • each extraction block 13 occupies at least 50% of the surface of the bottom of the corresponding formation cavity 2, and, even more preferably, as shown, occupies substantially the entire surface of the bottom of the corresponding formation cavity 2.
  • the extraction blocks 13 are actuated by a single mechanical actuator 14.
  • the extraction blocks 13 are fixed, with their opposite side with respect to the mouth 2a of the corresponding formation cavity 2, i.e., with their lower side, to a supporting bar 15, which in the illustrated embodiments is arranged horizontally and is accommodated in a compartment 16 that is defined in the die 3 below the formation cavities 2.
  • the supporting bar 15 is fixed, by means of adapted fixing elements 40, to a slider 17, which can slide along vertical guiding shafts 18 that are fixed to the frame 7.
  • the slider 17 is connected kinematically to the mechanical actuator 14.
  • the mechanical actuator 14 comprises a servomotor 19 with a gearmotor, the output shaft 20 of which is connected to a linkage composed of a rod 21 and a crank 22.
  • the rod 21 is fixed to a shaft 23 that acts on the slider 17.
  • safety means are interposed between the supporting bar 15 and the mechanical actuator 14 and are adapted to prevent the transition of the extraction blocks 13 from the inactive position to the extraction position in the presence of hindrances to the extraction of the stamped pieces of soap 6, for example due to an accidental alteration of the operating cycle of the apparatus.
  • Said safety means are constituted by elastic elements that are interposed between the slider 17 and the shaft 23.
  • the shaft 23 passes through a hole 24 that has a vertical axis and is defined in a plate 25 of the slider 17, and said elastic elements are constituted by springs 26, which are interposed between a shoulder 27 of the shaft 23 and a shoulder 28 of the plate 25. If a hindrance prevents the lifting of the supporting bar 15 and therefore of the plate 25, the shaft 23 can slide upwardly along the hole 24 without producing any lifting of the slider 17, since the springs 26 yield elastically.
  • the compartment 16 has, on its side walls, discharge openings 36 for any soap that might penetrate below the extraction blocks 13 and the supporting bar 15.
  • first means for cooling the die 3 are provided.
  • the first cooling means comprise ducts 29 that are defined in the walls of the die 3 that delimit laterally the formation cavities 2.
  • the ducts 29 are connected to inlet-outlet connectors 30, which can be connected, in a per se known manner, to a circuit for supplying a cooling liquid.
  • second means for cooling the extraction blocks 13 are provided.
  • the second cooling means comprise ducts 31 that are defined in the extraction blocks 13 and are connected to ducts 32 that are defined in the supporting bar 15 and in turn are connected to ducts 33 defined in the slider 17 and provided with inlet-outlet connectors 34 that can be connected to a circuit for supplying a cooling liquid.
  • the second cooling means are independent of the first cooling means so as to allow to manage the cooling of the extraction blocks 13 independently of the cooling of the die 3. Thanks to this refinement, it is possible to bring the temperature of the die 3 to an optimal level for the separation of the stamped pieces of soap 6 and obtain a hardening of the surface of the stamped pieces of soap 6 in contact with the extraction blocks 13 that is sufficient to exclude damage of the stamped pieces of soap 6 during their extraction from the formation cavities 2.
  • the complementary die 4 also can be provided with corresponding cooling means, constituted likewise by ducts 35 that are extended in the body of the complementary die 4 and can be connected to a circuit for supplying a cooling liquid.
  • the servomotor 19 can be connected to an actuation and control element that supervises the operation of the soap stamping apparatus.
  • actuation and control element can be programmed so as to actuate the servomotor 19 with a rule of motion that is correlated to the various steps of stamping with parameters that can be changed depending on the type of pieces of soap to be stamped.
  • the actuation and control element by way of a variation of the actuation of the mechanical actuator 14, can vary the stroke of the extraction blocks 13 in relation to the height of the lateral band 6a of the pieces of soap to be stamped and therefore to their final weight.
  • the actuation of the mechanical actuator 14 by way of the actuation and control element, it is possible to vary the phase of actuation of the extraction blocks 13 with respect to preceding and/or subsequent steps of the entire stamping cycle.
  • the second embodiment of the apparatus according to the invention differs from the first embodiment in that it is also provided with adjustment means 150 in order to vary the useful volume of the formation cavities 2 with the extraction blocks 13 in the inactive position and therefore to vary the volume of the pieces of soap 6 to be stamped.
  • the adjustment means 150 for varying the useful volume of the formation cavities 2 comprise means for varying the distance of the extraction blocks 13 from the mouth 2a of the corresponding formation cavity 2 when they are in the inactive position, i.e., before stamping the soap bar interposed between the die 3 and the complementary die 4.
  • the vertical guiding shafts 118, along which the slider 17 slides, instead of being fixed to the frame 7, are fixed, by way of their lower end, to a lower beam 151 and define, by way of their upper end, a resting element for the supporting bar 15.
  • additional guiding shafts 152 which are parallel to the guiding shafts 118 and again define, by means of their upper end, a resting element for the supporting bar 15 and are again fixed to the lower beam 151 but do not support the slider 17.
  • the guiding shafts 118, 152 are supported, so that they can slide along their axes, by guiding bushes 153, which are integral with the frame 7.
  • the upper end of the guiding shafts 118, 152 is provided with a contrast block 154, against which the supporting bar 15 rests.
  • the mechanical actuator 14 or the servomotor 19 with gearmotor and corresponding output shaft 20 are mounted on the lower beam 151.
  • the lower beam 151 is provided with bushings 155 within which an eccentric portion 156 of an actuation shaft 157 engages which is supported, so that it can rotate about its own axis, by the frame 7.
  • the actuation shaft 157 is connected, by means of a transmission 158 of a known type, for example a worm screw-helical gear transmission, to an actuation handwheel 159, by means of which it is possible to cause the rotation of the actuation shaft 157 and therefore the axial movement of the guiding shafts 118, 152 along the guiding bushes 153 with respect to the frame 7.
  • the axial movement of the guiding shafts 118, 152 produces the movement of the supporting bar 15 and therefore varies the distance of the extraction blocks 13 from the mouth 2a of the corresponding formation cavity 2 when the extraction blocks 13 are in their inactive position.
  • a bar of soap is placed so as to face the mouth 2a of the formation cavities 2.
  • the complementary die 4 is then moved toward the die 3 until it mates with it, closing the formation cavities 2.
  • the closing of the formation cavities 2 produces the evacuation of the excess soap, which is removed along the ducts and/or chutes 9 arranged laterally to the mouths 2a of the formation cavities 2.
  • the closure of the formation cavities 2 achieves the stamping of the pieces of soap, as shown in Figures 1 , 2 , 11 , 12 , 15 and 16 .
  • the complementary die 4 is then disengaged and moved away from the die 3 and pickup elements, of a known type and not shown for the sake of simplicity, provided for example with suckers that can engage the side of the stamped pieces of soap 6 that is opposite with respect to the side that rests against the extraction blocks 13, are arranged so as to face the mouth 2a of the formation cavities 2.
  • the extraction blocks 13 are moved into the extraction position, causing the at least partial extraction of the stamped pieces of soap 6 through the mouths 2a of the formation cavities 2 in the direction of the pickup elements, as shown in Figures 3 , 4 , 13 , 14 , 17 and 18 .
  • the pieces of soap are then taken by the pickup elements and moved away from the apparatus.
  • the extraction blocks 13 are returned to the inactive position and another bar of soap to be stamped is arranged so as to face the mouths of the formation cavities 2.
  • the stroke of the extraction blocks 13 can be such as to extract almost entirely the stamped pieces of soap 6 from the formation cavities 2, so as to minimize the force that the pickup elements must apply in order to remove the stamped pieces of soap 6 from the die 3 and to minimize the stroke required by the pickup elements to extract the stamped pieces of soap 6.
  • the apparatus according to the invention allows to perform stamping with the flash stamping method of pieces of soap that have a very high lateral band 6a and/or are particularly sticky, with fully satisfactory results in terms of quality.
  • the apparatus according to the invention achieves fully the intended aim and objects, since it allows to stamp with the flash stamping method types of soap that until today could be stamped only with the "die box” stamping method, in particular soaps with a very high lateral band and particularly sticky soaps.
  • Another advantage of the apparatus according to the invention is that it allows to adjust the stroke of the extraction blocks and their phase with respect to preceding or subsequent steps of the entire stamping cycle.
  • a further advantage of the apparatus according to the invention, in the second embodiment, is that it allows to vary the volume of the pieces of soap to be stamped without having to act on the rule of motion with which the extraction blocks are actuated.
  • the materials used, as well as the dimensions, may be any according to requirements and to the state of the art.
EP15152851.0A 2014-01-29 2015-01-28 Stempelvorrichtung vom flash-stempel-typ für seifenstücke zur herstellung von kosmetikseifen, wäscheseifen oder dergleichen Withdrawn EP2902180A1 (de)

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ITMI20140115 2014-01-29

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EP15152851.0A Withdrawn EP2902180A1 (de) 2014-01-29 2015-01-28 Stempelvorrichtung vom flash-stempel-typ für seifenstücke zur herstellung von kosmetikseifen, wäscheseifen oder dergleichen

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT201600108931A1 (it) * 2016-10-27 2018-04-27 Desmet Ballestra S P A In Breve Ballestra S P A Stampo di una apparecchiatura di stampaggio per saponi e simili e relativa apparecchiatura di stampaggio
CN111251652A (zh) * 2020-02-12 2020-06-09 宁波奔野重工股份有限公司 一种垃圾环保智能分离系统营养土压块装置

Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE331714C (de) * 1920-04-02 1921-01-13 C E Rost & Co Seifenpraegepresse mit mehrfach wirkendem Pressdruck
GB311070A (en) * 1928-04-14 1929-05-09 Fritz Kilian Improvements in the manufacture of compressed cakes
US2563839A (en) * 1945-08-27 1951-08-14 Colgate Palmolive Peet Co Process and apparatus for manufacturing inlaid soap and the like
FR1220937A (fr) * 1959-01-07 1960-05-30 Elelmiszeripari Gepgyar Procédé et machine de moulage et d'estampage de savons
EP0211192A1 (de) * 1985-06-26 1987-02-25 Bernardo Briano Automatische Formpresse zur Herstellung von Formlingen aus einem kontinuierlichen extrudierten Strang aus Seife oder dergleichen
WO1988005463A1 (en) * 1987-01-14 1988-07-28 Costruzioni Meccaniche G. Mazzoni S.P.A. A pressing apparatus for shaping pieces of material of pasty consistency such as soap, and related process
JPH0314090U (de) * 1989-06-16 1991-02-13
US5137440A (en) * 1991-01-28 1992-08-11 The Andrew Jergens Co. Brush cleaning mechanism for soap molding machines
JPH07179899A (ja) * 1993-12-24 1995-07-18 Kao Corp 石鹸の型打ち装置
DE29723066U1 (de) * 1997-11-06 1998-04-02 Sela Maschinen Gmbh Seifenform
FR2791602A1 (fr) * 1999-03-31 2000-10-06 Medelco Dispositif de fabrication d'un produit solide a partir d'une matiere pulverulente
DE10236371A1 (de) * 2001-08-06 2003-03-06 Yamada Dobby Bisai Kk Pressmaschine, insbesondere Gelenkpresse

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE331714C (de) * 1920-04-02 1921-01-13 C E Rost & Co Seifenpraegepresse mit mehrfach wirkendem Pressdruck
GB311070A (en) * 1928-04-14 1929-05-09 Fritz Kilian Improvements in the manufacture of compressed cakes
US2563839A (en) * 1945-08-27 1951-08-14 Colgate Palmolive Peet Co Process and apparatus for manufacturing inlaid soap and the like
FR1220937A (fr) * 1959-01-07 1960-05-30 Elelmiszeripari Gepgyar Procédé et machine de moulage et d'estampage de savons
EP0211192A1 (de) * 1985-06-26 1987-02-25 Bernardo Briano Automatische Formpresse zur Herstellung von Formlingen aus einem kontinuierlichen extrudierten Strang aus Seife oder dergleichen
WO1988005463A1 (en) * 1987-01-14 1988-07-28 Costruzioni Meccaniche G. Mazzoni S.P.A. A pressing apparatus for shaping pieces of material of pasty consistency such as soap, and related process
JPH0314090U (de) * 1989-06-16 1991-02-13
US5137440A (en) * 1991-01-28 1992-08-11 The Andrew Jergens Co. Brush cleaning mechanism for soap molding machines
JPH07179899A (ja) * 1993-12-24 1995-07-18 Kao Corp 石鹸の型打ち装置
DE29723066U1 (de) * 1997-11-06 1998-04-02 Sela Maschinen Gmbh Seifenform
FR2791602A1 (fr) * 1999-03-31 2000-10-06 Medelco Dispositif de fabrication d'un produit solide a partir d'une matiere pulverulente
DE10236371A1 (de) * 2001-08-06 2003-03-06 Yamada Dobby Bisai Kk Pressmaschine, insbesondere Gelenkpresse

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT201600108931A1 (it) * 2016-10-27 2018-04-27 Desmet Ballestra S P A In Breve Ballestra S P A Stampo di una apparecchiatura di stampaggio per saponi e simili e relativa apparecchiatura di stampaggio
CN111251652A (zh) * 2020-02-12 2020-06-09 宁波奔野重工股份有限公司 一种垃圾环保智能分离系统营养土压块装置
CN111251652B (zh) * 2020-02-12 2021-08-20 宁波奔野重工股份有限公司 一种垃圾环保智能分离系统营养土压块装置

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