EP0530156A2 - Vorrichtung zur Herstellung von transparenten Seifenstücken - Google Patents

Vorrichtung zur Herstellung von transparenten Seifenstücken Download PDF

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Publication number
EP0530156A2
EP0530156A2 EP92830403A EP92830403A EP0530156A2 EP 0530156 A2 EP0530156 A2 EP 0530156A2 EP 92830403 A EP92830403 A EP 92830403A EP 92830403 A EP92830403 A EP 92830403A EP 0530156 A2 EP0530156 A2 EP 0530156A2
Authority
EP
European Patent Office
Prior art keywords
zone
moulds
machine according
product
anyone
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Withdrawn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
EP92830403A
Other languages
English (en)
French (fr)
Other versions
EP0530156A3 (en
Inventor
Roberto c/o COLGATE PALMOLIVE S.p.A. Bocchi
Luciano c/o COLGATE PALMOLIVE S.p.A. Moglia
Sergio c/o COLGATE PALMOLIVE S.p.A. Santi
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.)
Colgate Palmolive SpA
Original Assignee
Colgate Palmolive SpA
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 Colgate Palmolive SpA filed Critical Colgate Palmolive SpA
Publication of EP0530156A2 publication Critical patent/EP0530156A2/de
Publication of EP0530156A3 publication Critical patent/EP0530156A3/en
Withdrawn legal-status Critical Current

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Classifications

    • 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
    • C11D13/16—Shaping in moulds
    • 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
    • C11D17/00—Detergent materials or soaps characterised by their shape or physical properties
    • C11D17/0095—Solid transparent soaps or detergents

Definitions

  • This invention relates to a machine for the production of soap bars made up of a transparent soap.
  • this invention relates to a machine of the type mentioned above which is capable of supplying soap bars made up of a liquid soap which is already packaged, and has a very high quality standard.
  • transparent soap which already existis on the market since many years and, as is well known, is a product of a certain standard, has some features that make its production particularly delicate.
  • the Applicant intended to realize a machine which, working automatically, were able to conciliate all requirements of the production of transparent soap, so as to obtain a solid soap bar, already packaged in a case, and having very high quality characteristics as a final product.
  • a first problem to be tackled and to be solved is the problem that, during injection of the product into the container, liquid soap solidifies very fast.
  • the whole metering and forming zone had to be thermostated, also intervening on the shape of the small injection tubes and on the flowrate in order to avoid the formation of foam and the presence of air.
  • the mold was to be modified in a suitable way in order to obtain a shape capable of removing the occurrence of shrinking lines.
  • the Applicant thought of introducing a vertical cutting zone that separates the single rows, and a bend in the path between the metering-forming step and the successive shearing step, which bend allows the cut rows to recover any possible inhomogeneous shortening.
  • a further feature introduced consists in the fact of providing a cold shearing operation and the cutting of scraps at each step.
  • a machine for the production of soap bars made up of a transparent soap said machine being characterized in that it comprises a first metering and forming zone for the product, said zone comprising means for suction of the liquid soap and means for conveying the same to the half-moulds, means for injecting liquid soap into said half-moulds, means for feeding the film making up the envelope between the halfmoulds, means for heating the film till reaching the softening temperature, means for forming the envelope inside said half-moulds and means for joining the two half-envelopes obtained within said half-moulds after injection of the product, said first zone being thermostated; a second zone of mechanical-pneumatic forward motion and centering operation, said zone comprising means for cutting the film into stripes, means for guiding and driving and centering means; a third zone for the operation of shearing the envelopes, said zone comprising means for feeding said envelopes into the shearing zone, means for cold-shearing and
  • said two halfmoulds have at least two shells for producing two rows of products, and in particular six rows of products.
  • Each one of said shells will preferably be so shaped as to have convergence lines that go toward the centre of the product.
  • Said means for suction and conveyance of the liquid soap will preferably be made up of a thermostated injection pump, having electrovalve pairs for suction and delivery which are equal in number to that of the shells of the moulds.
  • said film will be made up of a PVC/PE coupled layer which can be removed by peeling and is of 250/50 microns thickness.
  • the means for injecting liquid soap into the half-moulds are made up of small tubes whose cross section is preferably oval in shape, which start the injection at the point corresponding to the bottom of the moulds and which rise while the injection goes on.
  • a valve can be provided at the top of each injector, which valve prevents the product from dropping down when the machine is not in the injection step.
  • the forming of the envelope as a film inside the closed half-moulds occurs by means of the vacuum generated by a vacuum pump.
  • the two half-envelopes so obtained and filled are preferably welded by heat-welding.
  • a device for washing the moulds themselves can be provided in the circuit that joins the vacuum pump to the halfmoulds, said device comprising a valve for excluding transitorily the vacuum circuit and means for conveying water and pressurized air into the connection pipes to the moulds.
  • the operation of cutting the film into a number of stripes equal to the number of shells provided in said halfmoulds is performed by means of circular blades, the film being forced to follow a bend after the cutting operation in its forward motion.
  • the operation of feeding the containers to the welding zone is performed through pairs of horizontal supports, which are driven pneumatically, which arrange below the stripe, on the sides of the container, and take the same to the point correspondin to the shearing zone and then support the same till the beginning of the shearing operation.
  • the means for removal of the products so shorn and of the scraps so cut can be made up of a single conveyor belt.
  • the product is introduced into the cooling zone in the vertical position, with the part corresponding to the injection operation as the top part.
  • the product Before inserting the product into the cooling zone, it is preferably put into a case.
  • the numeral reference 1 points out the housing of the pumps and of the electrovalves for suction of the product from the reservoir 2 and its injection into the moulds 3.
  • the vacuum pump 4 is arranged below said housing 1, said pump being employed for realizing the vacuum inside the moulds 3.
  • the housing 1 is illustrated in a more detailed way in Figure 2.
  • a multiple pump 5 is provided inside said housing 1, said pump being provided with 6 pairs of electrovalves 6 and 7, which are employed respectively for suction of the product from the reservoir 2, through the pipes 8, and the conveyance of the injection of the product itself through the pipes 8 towards the moulds 3.
  • the numbero of pairs of electrovalves obviously corresponds to the number of moulds.
  • the housing 1 is thermostated through the electrical resistances 10, so as to keep the product at a temperature of about 45°C.
  • the numeral reference 11 points out the pipes for the oil in the device for controlling the hydraulic cylinder that drives the pump 5.
  • the small injection pipes 9 pass through the pipe 12 which comes out of the housing 1 at the top portion of the same.
  • the film 15 in the shape of rolls is fed in two parallel, opposite and vertical rows, passing between the two halfmoulds 3. Before arriving at the point corresponding to the moulds 3, said film 15 is heated up to the softening temperature by two heaters 16.
  • the half-moulds 3 close through an oleopneumatic system 17 (see Figure 3) and vacuum is obtained through the action of the vacuum pump 4 already mentioned above, which is connected to the two half-moulds 3 by means of the openings 18 (see Figure 4), so realizing the forming operation.
  • Two blades 19 are provided below said half-moulds 3 for heat-welding the film downstream of the envelope so formed.
  • the injection of the product begins just a few seconds after the beginning of action of the vacuum pump 4, and the injectors 14 begin rising during the filling step, through the action of the pneumatic system mentioned above.
  • Top valves can be provided on the injectors 14, said valves being not shown, which close at the moment when the injection stops, so preventing the product from dropping in the stopping phase onto the film not yet formed.
  • moulds 3 which can be fully observable in Figure 5, allows to avoid the formation of shrinking lines of the film on the film itself and then on the envelope 20.
  • Grippers 21 are provided downstream of the moulds 3 and of the blades 19, said grippers being employed for driving the film towards the zone where the film is cut into stripes, in a number corresponding to the number of moulds 3.
  • the operation of cutting the film 15 intro stripes is performed by means of five circular blades, which are borne by the member 22.
  • Guides 23 are provided in that zone, said guides leading the film stripes together with the envelopes 20 already formed and filled up to the shearing zone.
  • the bend formed by the film 15 in that cutting zone allows any possible differences of position of the film itself to be recovered.
  • the reference numeral 24 points out a pushing frame that takes the film 15 to the shearing zone, arranging said film below the shearing machine 25, which has a suitable shape.
  • the shearing zone and the scrap cutting zone are illustrated in particular in figures 6 and 7.
  • the envelope 20 is taken below the shearing machine 25 into the correct position through the blades 26 or through supporting fins, which are driven by the piston 27 before the shearing machine closes ( Figure 6).
  • the shorn envelope 20 drops onto the conveyor belt 30 while the scrap 28 goes to the cutter 29 which cuts it step by step causing it to drop onto the conveyor belt 30 and then into the tub 21.
  • the workmen take the envelope 20 from the belt 30, put them into cases and such cases are then put into the refrigerator (not shown) where the soap bar is left for the time required to form a solid outer crust.
  • a first electrovalve 33 is provided in the pipe 32 connected to the vacuum pump 4, for the operation of the pump itself, together with a valve 34 that puts the washing system into action.
  • a small basin 35 full of water is arranged within the thermostated housing 1 so that water is always at a temperature of about 45°C.
  • the pump 4 can be isolated with the washing system by acting on the valve 34, and water is delivered through the valve 36 and the pipes 37 to the mould 3.
  • the vacuum pump 4 can be excluded by means of the valve 40.
  • the washing system is operated manually.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Wood Science & Technology (AREA)
  • Organic Chemistry (AREA)
  • Detergent Compositions (AREA)
EP19920830403 1991-07-26 1992-07-22 A machine for the production of soap bars made up of transparent soap Withdrawn EP0530156A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITRM910567A IT1250059B (it) 1991-07-26 1991-07-26 Macchina per la produzione di saponette in sapone trasparente
ITRM910567 1991-07-26

Publications (2)

Publication Number Publication Date
EP0530156A2 true EP0530156A2 (de) 1993-03-03
EP0530156A3 EP0530156A3 (en) 1993-10-27

Family

ID=11400290

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19920830403 Withdrawn EP0530156A3 (en) 1991-07-26 1992-07-22 A machine for the production of soap bars made up of transparent soap

Country Status (2)

Country Link
EP (1) EP0530156A3 (de)
IT (1) IT1250059B (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6224812B1 (en) 1997-05-16 2001-05-01 Lever Brothers Company, Division Of Conopco, Inc. Process for molding of a detergent composition
US7632441B2 (en) * 2000-04-06 2009-12-15 Unilever Home & Personal Care Usa Division Of Conopco, Inc. Process and apparatus for the production of a detergent bar

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR743090A (de) * 1931-09-24 1933-03-23
EP0294010A1 (de) * 1987-04-30 1988-12-07 Neutrogena Corporation Verfahren und Vorrichtung zur kontinuierlichen Herstellung von transparenter Seife
EP0321179A1 (de) * 1987-12-15 1989-06-21 Unilever Plc Verfahren zum Giessformen
EP0493197A1 (de) * 1990-12-20 1992-07-01 L'oreal Verfahren zum Formen eines fliessfähigen Materials, insbesondere Seifen, und transparente oder durchscheinende Seifen

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR743090A (de) * 1931-09-24 1933-03-23
EP0294010A1 (de) * 1987-04-30 1988-12-07 Neutrogena Corporation Verfahren und Vorrichtung zur kontinuierlichen Herstellung von transparenter Seife
EP0321179A1 (de) * 1987-12-15 1989-06-21 Unilever Plc Verfahren zum Giessformen
EP0493197A1 (de) * 1990-12-20 1992-07-01 L'oreal Verfahren zum Formen eines fliessfähigen Materials, insbesondere Seifen, und transparente oder durchscheinende Seifen

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6224812B1 (en) 1997-05-16 2001-05-01 Lever Brothers Company, Division Of Conopco, Inc. Process for molding of a detergent composition
US6800601B2 (en) 1997-05-16 2004-10-05 Lever Brothers Company, Division Of Conopco, Inc. Bar made by delivering composition under pressure of injector head at entry to substantially closed mold
US7632441B2 (en) * 2000-04-06 2009-12-15 Unilever Home & Personal Care Usa Division Of Conopco, Inc. Process and apparatus for the production of a detergent bar
US8162646B2 (en) 2000-04-06 2012-04-24 Conopco, Inc. Apparatus for the production of a detergent bar

Also Published As

Publication number Publication date
IT1250059B (it) 1995-03-30
ITRM910567A0 (it) 1991-07-26
ITRM910567A1 (it) 1993-01-26
EP0530156A3 (en) 1993-10-27

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