EP3701831A1 - Vorrichtung, maschine und verfahren zum giessen eines lippenstiftes - Google Patents

Vorrichtung, maschine und verfahren zum giessen eines lippenstiftes Download PDF

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Publication number
EP3701831A1
EP3701831A1 EP20158722.7A EP20158722A EP3701831A1 EP 3701831 A1 EP3701831 A1 EP 3701831A1 EP 20158722 A EP20158722 A EP 20158722A EP 3701831 A1 EP3701831 A1 EP 3701831A1
Authority
EP
European Patent Office
Prior art keywords
mold
core
plate
station
cavity
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Withdrawn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
EP20158722.7A
Other languages
English (en)
French (fr)
Inventor
Giuseppe Del Piccolo
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.)
Cosmatic Srl
Original Assignee
Cosmatic 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 Cosmatic Srl filed Critical Cosmatic Srl
Publication of EP3701831A1 publication Critical patent/EP3701831A1/de
Withdrawn legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A45—HAND OR TRAVELLING ARTICLES
    • A45D—HAIRDRESSING OR SHAVING EQUIPMENT; EQUIPMENT FOR COSMETICS OR COSMETIC TREATMENTS, e.g. FOR MANICURING OR PEDICURING
    • A45D40/00—Casings or accessories specially adapted for storing or handling solid or pasty toiletry or cosmetic substances, e.g. shaving soaps or lipsticks
    • A45D40/16—Refill sticks; Moulding devices for producing sticks

Definitions

  • the present invention relates to a device for casting lip stick.
  • the invention is also related to a machine which incorporates the device, and to a method for casting a lip stick.
  • the known machines for forming lip sticks hot-cast a product in a deformable mold. Once cooled, the product solidifies, forming the stick.
  • the mold is deformable (since normally made of silicone), it is possible that before solidification, the mold also deforms slightly, thereby producing a stick which must be discarded.
  • Object of the present invention is to provide a device, a machine and a method for producing lip sticks, which make it possible to produce sticks which correspond perfectly with the mold in which they are cast, thereby minimising production waste.
  • the invention makes it possible to produce lip sticks formed from more than one cast product, for example two-coloured sticks.
  • a device for casting lip stick is denoted 1.
  • the device 1 for casting a lip stick comprises primarily a deformable mold 2 supported by a plate 3.
  • the mold 2 can envisage a flange 200 from which an elongated portion may extend, for example a frusto-conical portion 201. Inside the frusto-conical portion a cavity 7 is defined, which can assume the external form of a lip stick which one wishes to produce.
  • the form of the cavity 7 defines the final outline which the lip stick one intends to produce will have. It can be noted that the bottom 7A of the cavity can be not flat, and more specifically can feature an inclined surface 202, which creates a corresponding inclined portion on the tip of the lip stick, making it thereby assure the characteristic configuration specific of cosmetic lipsticks.
  • the plate 3 can envisage a hole 21 whose diameter is smaller than that of the flange 200.
  • the stick is suspended from the plate, with the portion frusto-conical protruding beneath the plate 3 (see Figure 4 , for example).
  • the mold 2 can be secured to the plate 3, by means of a plate 20, which can envisage magnets which removably fix the plate 20 to the plate 3.
  • a plate 20 which can envisage magnets which removably fix the plate 20 to the plate 3.
  • the plate can feature a hole 204, which renders the cavity 7 of the mold accessible from the top.
  • the flange of the mold is sandwiched between the plate and the mold 2.
  • the plate 3 can comprise first alignment means 14 for the mold 2, so that the mold can be inserted into the hole solely when correctly positioned (and therefore in one way only).
  • the flange 200 of the mold can envisage a small alignment hole 205, which engages with a pin 14 protruding from the plate 3.
  • an appendix 4 can be envisaged which is integral to the plate 3 (for example screwed to the plate).
  • the appendix can comprise a portion 5 (which extends from beneath the mold 2) configured to perform a form-based coupling with a bottom 2A of the mold 2, so as to keep the bottom 2A of the mold centred with respect to the hole 21, or more generally with respect to the plate 3, and so as to stabilise the mold when exposed to stresses.
  • the appendix 4 features a centering element 5 (essentially an protrusion with a cylindrical or frusto-conical shape) which fits into a seat 8 envisaged on the bottom 2A of the mold.
  • the form-based coupling between the appendix 4 and the mold can envisage other solutions.
  • the protrusion can envisage a cup-shaped element which copies the external form of the bottom 2A of the mold, and inside which the latter fits.
  • the form-based coupling can be configured to maintain of the mold 2 in an axial alignment, also when the latter is exposed to stress.
  • the mold remains aligned even when the plate 3 is handled (to be conveyed to the other processing stations, which will be examined later on). Indeed, the protrusion 4 is integral to the plate 3.
  • the plate 3 can support a core 6 which is movable between at least a first position, in which the core 6 is spaced apart from the mold 2 ( Fig. 5 ), and a second position in which the core 6 has been lowered into a casting cavity 7 of the mold 2, so that the said core is touching a bottom 7A of the cavity of the mold 2 ( Fig. 6 ).
  • the core 6, which - in this case - is simply a hollow tubular element (but may also be a simple plate do divide the moulding cavity in two parts, as represented in fig. 11 ), can be secured - in such a way that it can travel - to a frame 9, equipped with centering means 11A, 11B, 11C cooperating with counter-means 12A, 12B, 12C of centering the plate 3.
  • centering means 11A, 11B, 11C cooperating with counter-means 12A, 12B, 12C of centering the plate 3.
  • These are essentially shaped teeth protruding from the frame, which can fit into specific seats envisaged in the plate.
  • at least one of the centering means 11A and one of the centering counter-means 12A can envisage outlines designed to prevent incorrect assembly of the frame 9 on the plate.
  • centering means and the centering counter-means can be configured to center and removably fasten the frame 9 to the plate 3, and - consequently - the core 6 to the mold 2 (which, remember, is centered by means of the appendix 4).
  • the plate 20 features the through-windows or cutouts in position with the counter-means 12A, 12B and 12C.
  • the frame 9 supports a block 9A, endowed with a gauged through-hole 201, inside which the core is inserted in a sliding manner.
  • the core can slide from the position in Figure 5 to that in Figure 6 , in a perfectly vertical and guided fashion.
  • frame 9 comprises second means 15 of aligning the core 6 with the frame, in a torsional manner.
  • a bottom 6A of the core 6 (which preferably has the same form as the bottom 7A of the cavity), may fit together with this.
  • the bottom 6A of the core 6 is inclined in exactly the same way as the inclination of the surface 202, with which it fits together perfectly.
  • the presence of the core 6 makes it possible to produce lip sticks composed of two different cast materials, which can be contemporaneously facing a surface on which the stick is used.
  • first dosing device 22 there may be a first dosing device 22 present, endowed with a nozzle 23 configured to deliver a first (hot-) cast product into a gap 24 between the mold 2 and the core 6 (once the core has been lowered into the cavity of the mold).
  • the plate 3 is moved to a cooling station, which cools the mold with the core still inserted in the cavity.
  • the core 6 is extracted ( Fig. 8 ) from the cavity 7 of the mold.
  • the operation can be carried out automatically, but also by hand.
  • the block 9A guides the core extraction movement to perfection, preventing the latter from oscillating. Furthermore, also the systems 220 for the torsional coupling of the core with the frame 9 (which can comprise the pin 15 over which a bored element 239 integral to the core 6 slides) prevent the core rotating around its own axis, at least during a first extraction step in which the bored element and the pin 15 are coupled.
  • the frame 9 supporting the core 6 can be removed, and the plate 3 (and, consequently, also the mold 2) move into position with a second casting station ( Fig. 9 ).
  • a second dosing device 25 which is configured to deliver a second (hot-) cast product into a compartment 27 which forms in the first cast and solidified product through the removal of the core 6. If the core is plate like, the device 25 doses the second cast product in the still empty part of the mould.
  • the plate accesses a second cooling station, so as to bring the stick to complete solidification, the latter being therefore extracted from the mold, for example upon the said mold deforming through a vacuum in a known way.
  • the plate 3 can be moved so as to bring the mold into a station in which the frame 9 is once again positioned on the plate and the core is repositioned inside the mold (so that the said mold can receive a casting again).
  • first and the second products cast may be specific cosmetic products for cosmetic lipsticks/lip glosses/lip balms etc., and may differ in terms of the intrinsic properties thereof (for example, whether or not they are endowed with active ingredients), but also for example (and advantageously) in terms of the colour, finish, appearance etc.
  • the final stick features a part (occupied by the core) consisting of the second cosmetic product, and a part (corresponding to that which was surrounding the core) formed of the second product, and therefore may be two-coloured, or formed of products with different proprieties.
  • section of the core 6 is circular.
  • section of the core can be any conformation, for example square, rectangular, oval, heart- or star-shaped, or any other shape deemed aesthetically pleasing or eye-catching.
  • the core 6 can also be a plate (as in fig. 11 ), a cross etc. If the core 6 is a plate, the final lipstick will be formed as represented in the section of fig. 13 . One half of the lipstick is made by a first cast product 22 and the other half of the lipstick is made by a second cast product 25.
  • the presence of the appendix 4 for centering the mold 2 makes it possible to keep the latter aligned also in the event of intense pressure exerted by the core 6 against the bottom 7A of the cavity 7. Given that the system withstands a high level of pressure (preventing the deformation, including elongation, of the mold), the core may be pressed hard against the bottom of the cavity. In this way, the visible edges which separate the first and second product (for example on the inclined surface of the stick) are perfectly clean, without burrs, or commingling of the first and second product.
  • the plate can assume the conformation of a circular turntable, endowed with a plurality of holes inside which it is possible to house the molds.
  • the rotation of the plate 3 makes it possible to move the molds around a closed circuit, which features different work stations shared by the machines for forming lip sticks, some of which have been described already.
  • the invention may relate to a machine for forming lip sticks, which comprises, in addition to the device described, a second station for cooling the stick located downstream of the second casting station, a demolding station for the removing the solidified sticks, and optionally, a station for preheating the molds 2 located between the demoulding station and the first casting station,.
  • the invention also relates to a method for casting a lip stick, comprising the step consisting of at least axially blocking the bottom 2A of the deformable mold, and (while keeping the bottom 2A of the mold axially blocked):

Landscapes

  • Cosmetics (AREA)
  • Confectionery (AREA)
  • Moulding By Coating Moulds (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
EP20158722.7A 2019-02-27 2020-02-21 Vorrichtung, maschine und verfahren zum giessen eines lippenstiftes Withdrawn EP3701831A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT102019000002831A IT201900002831A1 (it) 2019-02-27 2019-02-27 Dispositivo, macchina e metodo di colaggio di uno stick per labbra

Publications (1)

Publication Number Publication Date
EP3701831A1 true EP3701831A1 (de) 2020-09-02

Family

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Family Applications (1)

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EP20158722.7A Withdrawn EP3701831A1 (de) 2019-02-27 2020-02-21 Vorrichtung, maschine und verfahren zum giessen eines lippenstiftes

Country Status (2)

Country Link
EP (1) EP3701831A1 (de)
IT (1) IT201900002831A1 (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20220117376A1 (en) * 2020-10-21 2022-04-21 Weckerle Gmbh Apparatus and method for forming a multilayer cosmetic product by means of a flexible core
EP4000854A1 (de) * 2020-11-24 2022-05-25 Chromavis S.P.A. Verfahren zur herstellung eines lippenstifts, maschine zur herstellung von lippenstiften und nach diesem verfahren hergestelltes produkt für lippen
IT202200008132A1 (it) * 2022-04-26 2023-10-26 Ve Tra Co Srl Metodo di produzione di rossetti del tipo a pastello con anima passante e relativa macchina di produzione

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3777494B2 (ja) * 1998-10-26 2006-05-24 昭徳 渡邉 保持具を有する成形物の成形装置及び成形方法
FR3001874A1 (fr) * 2013-02-12 2014-08-15 Oreal Procede de fabrication d'au moins un bloc de produit cosmetique, installation et tetine associees
WO2018206883A1 (fr) * 2017-05-09 2018-11-15 Parfums Christian Dior Baton de produit cosmetique comprenant deux compositions ayant une surface en relief, procede et dispositif de fabrication d'un tel baton de produit cosmetique

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3777494B2 (ja) * 1998-10-26 2006-05-24 昭徳 渡邉 保持具を有する成形物の成形装置及び成形方法
FR3001874A1 (fr) * 2013-02-12 2014-08-15 Oreal Procede de fabrication d'au moins un bloc de produit cosmetique, installation et tetine associees
WO2018206883A1 (fr) * 2017-05-09 2018-11-15 Parfums Christian Dior Baton de produit cosmetique comprenant deux compositions ayant une surface en relief, procede et dispositif de fabrication d'un tel baton de produit cosmetique

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20220117376A1 (en) * 2020-10-21 2022-04-21 Weckerle Gmbh Apparatus and method for forming a multilayer cosmetic product by means of a flexible core
US12035794B2 (en) * 2020-10-21 2024-07-16 Weckerle Gmbh Apparatus and method for forming a multilayer cosmetic product by means of a flexible core
EP4000854A1 (de) * 2020-11-24 2022-05-25 Chromavis S.P.A. Verfahren zur herstellung eines lippenstifts, maschine zur herstellung von lippenstiften und nach diesem verfahren hergestelltes produkt für lippen
IT202200008132A1 (it) * 2022-04-26 2023-10-26 Ve Tra Co Srl Metodo di produzione di rossetti del tipo a pastello con anima passante e relativa macchina di produzione

Also Published As

Publication number Publication date
IT201900002831A1 (it) 2020-08-27

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