EP2958457A1 - Tube for a product having a liquid, pasty or gel-like consistency, in particular for cosmetic products - Google Patents

Tube for a product having a liquid, pasty or gel-like consistency, in particular for cosmetic products

Info

Publication number
EP2958457A1
EP2958457A1 EP14706300.2A EP14706300A EP2958457A1 EP 2958457 A1 EP2958457 A1 EP 2958457A1 EP 14706300 A EP14706300 A EP 14706300A EP 2958457 A1 EP2958457 A1 EP 2958457A1
Authority
EP
European Patent Office
Prior art keywords
tube
mandrel
reliefs
skirt
head
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Withdrawn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
EP14706300.2A
Other languages
German (de)
French (fr)
Inventor
Jean-Manuel Massey
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.)
Albea Services SAS
Original Assignee
Albea Services SAS
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 Albea Services SAS filed Critical Albea Services SAS
Publication of EP2958457A1 publication Critical patent/EP2958457A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02K—JET-PROPULSION PLANTS
    • F02K1/00—Plants characterised by the form or arrangement of the jet pipe or nozzle; Jet pipes or nozzles peculiar thereto
    • F02K1/46—Nozzles having means for adding air to the jet or for augmenting the mixing region between the jet and the ambient air, e.g. for silencing
    • F02K1/48—Corrugated nozzles
    • 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
    • A45D34/00—Containers or accessories specially adapted for handling liquid toiletry or cosmetic substances, e.g. perfumes
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B3/00—Packaging plastic material, semiliquids, liquids or mixed solids and liquids, in individual containers or receptacles, e.g. bags, sacks, boxes, cartons, cans, or jars
    • B65B3/02—Machines characterised by the incorporation of means for making the containers or receptacles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
    • B29C45/14598—Coating tubular articles

Definitions

  • Tube for product with a liquid, pasty or gel-like consistency, especially for cosmetic products
  • the present invention relates to tubes for the preservation and distribution of liquid, pasty or gel-like product. It finds a particular application for cosmetic products.
  • the present invention also relates to a skirt and a head of said tube as well as the method of manufacturing said tube, its method of corking and / or decoration.
  • the tube is manufactured with inexpensive materials, a reduced number of manufacturing steps and with automated production methods.
  • a tube consisting of a tube head, a skirt and a bottom, located opposite the tube head, said tube formed in one piece by injection and extrusion.
  • the bottom includes a form of engagement for positioning the tube.
  • the tube is decorated, corked, then the bottom is cut, the tube is filled and finally sealed.
  • This solution has the disadvantage of using the material which is then removed from the tube, and to add a cutting step, which increases the manufacturing cost of the tube.
  • the present invention aims to provide a tube structure, a tube head and a skirt not having such disadvantages.
  • the present invention also provides a manufacturing method, a corking process and a method of decorating such a tube.
  • the subject of the present invention is a product tube with a liquid, pasty or gel-like consistency, said tube comprising a tube head, a skirt having a proximal end connected to the tube head and an open distal end, the skirt and the tube head forming an internal volume adapted to contain the product, the tube being configured to be assembled with at least one of a plug and a decoration when it cooperates with a mandrel, reliefs being formed on a wall of the internal volume, the reliefs being configured to limit a sliding rotation of the tube relative to the mandrel.
  • Rotational sliding can occur during assembly of the tube with a plug and / or a decoration. Rotational sliding can occur in particular when a tool applies a torque to said tube.
  • An object of the invention is to limit the rotational sliding between the tube and the mandrel, and advantageously to have a sliding in rotation less than 15 °, preferably 5 ° of angle, or even zero, during assembly of the tube with a cap and / or decor.
  • the tube according to the invention when it cooperates with a mandrel, has a sliding in rotation relative to the mandrel limited by the reliefs formed on the walls of the internal volume.
  • the tube is thus able to be assembled with at least one stopper and / or a decor according to a method which does not degrade its surface state and which requires a reduced adjustment time, this while using a minimal amount of material since the reliefs are formed in a non-visible area, forming part of the tube itself.
  • the invention can be used with the following features, taken together or separately: ⁇ the reliefs have surfaces configured to allow centering relative to the mandrel;
  • the reliefs define between each of them hollow recessed shapes by going from a distal end to a base of said reliefs;
  • the reliefs define between each of them recessed shapes regularly distributed according to their angular and / or radial positions;
  • the reliefs define between each of them recessed shapes adjacent and / or filling at least one circle concentric with a longitudinal axis of the tube;
  • the reliefs define between each of them recessed shapes extending parallel to the skirt, radially and / or according to generatrices of a conical portion formed by at least a portion of the tube head and / or the skirt the conical portion being the conjugation of one or more cones;
  • the reliefs are located at least at the level of the interface zone;
  • the interface zone comprises a zone of overlap between the skirt and the tube head;
  • the inner surface of the skirt covers the outer surface of the tube head in the overlap zone
  • the skirt is made of multilayer material containing a barrier layer
  • the depth of the recessed shapes is between 0.1 mm and 0.7 mm, preferably between 0.2 mm and 0.4 mm;
  • the tube comprises at least 30 reliefs, preferably at least 60 reliefs and even more preferably at least 90 reliefs; • the tube is essentially cylindrical;
  • the tube comprises at least one smooth zone on the walls of the internal volume adapted to cooperate with suction means of the mandrel;
  • the smooth zone extends over a conical portion formed by at least a portion of the tube head, the conical portion being the conjugation of one or more cones;
  • the object of the invention also comprises a tube head for a tube as described above, the reliefs being formed on the walls of the internal volume belonging to the tube head.
  • the tube head according to the invention may be used with the following characteristics, taken together or separately:
  • the tube head comprises a neck and a shoulder of circular section in contact with the skirt;
  • the reliefs are formed on the inner face of the shoulder;
  • the smooth zone is located on the inner face of the tube head, preferably between the neck and the reliefs.
  • the object of the invention also comprises a skirt for a tube as described above, the reliefs being formed on the walls of the internal volume belonging to the skirt.
  • the object of the invention also comprises a method of manufacturing a tube as described above in which the reliefs are manufactured during a step of manufacturing the skirt and / or the tube head.
  • the manufacturing method according to the invention can be used with the following characteristics, taken together or separately: ⁇ the skirt and the tube head are assembled;
  • the injection-tube head is overmolded on the proximal portion of the skirt; in this case the formation of the head and the fixing of the tube head on the skirt are made together;
  • the punch is a part of the mold that overmoulds the tube head on the skirt;
  • the injection-molded tube head is molded prior to its assembly on the tube head;
  • the tube head is molded by compression prior to its assembly on the tube head;
  • the tube head is welded to the skirt, advantageously by thermal welding;
  • the object of the invention also comprises a method of capping a tube in which the tube cooperates with a mandrel, the mandrel comprising reliefs adapted to cooperate with the reliefs of the tube.
  • the method of capping a tube according to the invention may be used with the following characteristics, taken together or separately:
  • the mandrel comprises a first end adapted to cooperate with the tube, and a second end adapted to cooperate with an actuator for moving and positioning the mandrel;
  • Said first end of the mandrel comprises a zone having substantially the same shape as a part of the punch, in order to be able to cooperate with the tube optimally;
  • a depression is applied in the internal volume of the tube in order to bring the tube into contact with the mandrel and to maintain surface contact between the tube and the mandrel;
  • the mandrel comprises at least one suction means located at said first end of the mandrel;
  • suction means is adapted to cooperate with the smooth zone of the tube
  • the suction means makes it possible to bring the tube into contact with the mandrel and to maintain surface contact between the tube and the mandrel;
  • the mandrel is rotated relative to the plug so that the plug applies a force on the tube which makes the tube slide in rotation relative to the mandrel, and the reliefs of the tube and the mandrel cooperate to block the sliding rotation.
  • the object of the invention also comprises a method of decorating a tube in which the tube cooperates with a mandrel, the mandrel comprising reliefs adapted to cooperate with the reliefs of the tube.
  • the method of decorating a tube according to the invention may be used with the following characteristics, taken together or separately:
  • the mandrel comprises a first end adapted to cooperate with the tube, and a second end adapted to cooperate with an actuator for moving and positioning the mandrel;
  • Said first end of the mandrel comprises a zone having substantially the same shape as a part of the punch, in order to be able to cooperate with the tube optimally;
  • a depression is applied in the internal volume of the tube in order to bring the tube into contact with the mandrel and to maintain surface contact between the tube and the mandrel;
  • the mandrel comprises at least one suction means located at said first end of the mandrel;
  • the suction means is adapted to cooperate with the smooth zone of the tube;
  • the suction means makes it possible to bring the tube into contact with the mandrel and to maintain surface contact between the tube and the mandrel;
  • the mandrel is rotated relative to a decorating tool so that the decorating tool applies a force on the tube which makes the tube slide in rotation with respect to the mandrel, and the reliefs of the tube and the mandrel cooperate in order to block the sliding rotation.
  • the tube is decorated and corked. It is understood that the invention, by maintaining in position the tube relative to the mandrel made on the inner face of the tube can limit the risk of damage to the decor during corking.
  • the mandrel used during the corking process and the mandrel used in the decoration process may be identical.
  • they can constitute a single piece used successively for the corking process and the decoration process.
  • One can have a method of decorating and capping a tube comprising one and / or the other of the following steps:
  • the mandrel is placed in the internal volume of the tube intended to contain the cosmetic product
  • the mandrel is rotated with respect to a decorating tool so that the tool applying the decor applies a force on the tube which causes the tube to rotate in relation to the mandrel, and the reliefs of the tube and of the decorating mandrel cooperate in order to block the sliding in rotation;
  • the mandrel is rotated relative to the plug so that the plug applies a force on the tube which makes the tube slide in rotation relative to the mandrel, and the reliefs of the tube and the mandrel cooperate to block the sliding rotation.
  • Figure 1 illustrates, in perspective, the upper part of a tube according to the invention in longitudinal sectional view
  • Figure 2 illustrates, in perspective, a tube head according to the invention in top view
  • FIG. 3 illustrates, in perspective, a skirt according to the invention
  • Figure 4 illustrates, in perspective, a tube head according to the invention in view from below;
  • Figure 5 partially illustrates, in perspective, a punch adapted to form reliefs for a tube according to the invention in axial sectional view;
  • FIG. 6 illustrates, in perspective, a mandrel adapted to cooperate with a tube according to the invention
  • FIG. 7 partially illustrates, in perspective, a tube according to the invention in longitudinal sectional view fitted on an uncut mandrel
  • Figure 8 partially illustrates, in perspective, a tube according to the invention in longitudinal sectional view during fitting on an uncut mandrel
  • Figure 9 illustrates a tube according to the invention in a mold in longitudinal sectional view.
  • the invention relates to a product tube 10 with a liquid, pasty or gel-like consistency.
  • the tube 10 is advantageously a flexible tube.
  • flexible tube is meant a tube which can be pressed easily without breaking.
  • the term flexible also means that if the tube 10 is subjected to a force such as that occurring during a filling with a composition, or a pressing between fingers, its shape will change without it breaking.
  • This tube 10 comprises a tube head 18 and a skirt 30, in particular cylindrical.
  • the tube head 18 is advantageously more rigid than the skirt 30 to allow the entire composition to come out.
  • the skirt 30 When applying pressure to the entire flexible tube 10: the skirt 30 will flatten before the tube head 18 is crushed.
  • Said skirt 30 has a proximal end 32 connected to the tube head 18 and a distal end 34 open, the skirt 30 and the tube head 18 forming an internal volume 12 adapted to contain the product.
  • the distal end 34 of the tube 10 is not visible in FIG. 1. It should be understood that it remains open until the tube 10 is filled. Once the tube is filled, it is then closed again to hold the product in the tube. tube 10, in particular by sealing. In rarer cases, the product may be introduced into the tube through the tube head, the skirt having been previously closed.
  • the tube head 18 comprises a shoulder 20 of circular section and a neck 22.
  • the neck 22 comprises a spout 24 with a thread 26 adapted to cooperate with a screw cap.
  • the nozzle 24 is able to deliver the product contained in the tube 10 when a plug does not close it.
  • the skirt 30 flattened under pressure, the product is pressed to the tube head 18, then to the neck 22 and finally it passes through the nozzle 24 to be delivered to the outlet 28 of the spout.
  • the product has a liquid consistency, pasty or is in the form of gel. Some products are difficult to keep in tubes. The tubes must therefore provide sufficient chemical resistance.
  • inorganic hydroxides include ammonium hydroxide as well as alkali and alkaline earth metal hydroxides (eg, potassium hydroxide and calcium hydroxide).
  • the class of inorganic halides include fluorites, chlorites, bromates, and ammonium iodites, and metals such as transition metals, alkali metals, and alkaline earth metals. Specific examples include aluminum chlorite, potassium chlorite and ammonium fluorite.
  • Peroxides include hydrogen peroxide, urea peroxide (carbamate), and alkaline and alkaline earth peroxides (eg, sodium peroxide).
  • the corresponding aggressive products have pH values of less than about 4 (eg, in the range of about 1 to about 4, or about 1 to about 3) or the opposite of pH values at greater than about about 9 (eg, in the range of about 10 to about 13, or about 10 to about 12), and often more than about 11 (eg, in the range of about 11 to about 14).
  • the tube 10 according to the invention is advantageously able to store and distribute a product of the cosmetic type, especially as mentioned above.
  • the skirt 30 is, for example, a multilayer material containing at least one barrier layer to prevent the penetration of certain gases and liquids in the tube 10, which could alter the contents of the tube 10, and to block the evacuation of some components of the product that could contain the tube 10, which could lead to the degradation of the product itself.
  • obstacles or barrier layers in the thickness of the tube 10 can inhibit the undesirable infiltration and exit of the components through the tube 10.
  • such a skirt 30 can improve the Sealing tube 10.
  • the tube head 18 may also comprise a barrier layer or an insert to improve there also the sealing of the tube 10.
  • the tube head 18 and the skirt 30 are here two separate parts joined at the level an interface zone 38. The skirt 30 and the tube head 18 overlap in this interface zone 38.
  • the inner surface of the skirt 30 may in particular cover the outer surface 16 of the tube head 18 in a covering area 40.
  • a product that would be in the volume internal 12 in the vicinity of the overlap zone 40 would be separated from the environment by a layer of material belonging to the tube head 18 and by a layer of material belonging to the skirt 30.
  • reliefs 42 are formed on a wall of the internal volume 12 of the tube 10.
  • the reliefs 42 are located, for example, at the interface zone 38.
  • the reliefs 42 are configured to limit a slip in rotation of the tube 10 relative to the mandrel 76. They constitute obstacles on which the mandrel 76 comes to bear to limit the sliding rotation of the tube.
  • the tube 10 slides in rotation relative to the mandrel 76.
  • the angular offset between the orientation of the mandrel 76 and the mandrel 76 tube orientation increases.
  • the tube 10 retains its angular offset relative to the mandrel 76, it no longer increases.
  • the reliefs 42 are described hereinafter with reference to FIG. 5 representing the punch 74 which makes it possible to manufacture said reliefs 42.
  • the shapes of the reliefs 42 and the punch 74 are considered here as complementary.
  • the mandrel 76 is described below with reference to FIG.
  • the reliefs 42 comprise surfaces 44 configured to allow centering with respect to the mandrel 76.
  • the surfaces 44 of the reliefs 42 are configured to allow placement of the mandrel 76 in a blocking position by simple sliding, comprising an axial component along the longitudinal axis of the tube, surfaces 44 on the mandrel 76, without having to make a prior relative angular adjustment of the mandrel 76 relative to the tube 10.
  • these reliefs 42 define between each of them, for example, recessed shapes 46 narrowed by going from a distal end 48 to a base 50 of said reliefs 42.
  • the recessed shapes 46 belong, advantageously, either to the skirt 30 is, as illustrated, to the tube head 18. They extend, for example, parallel to the skirt 30, radially and / or, as illustrated, according to generatrices of a conical portion 64 formed by at least one part of the tube head 18.
  • Two adjacent surfaces 44 reliefs 42 may meet at common edges located on a distal end 48 of said reliefs 42 of the tube or on a base 50 of said reliefs 42 of the tube.
  • Part of the mandrel 76 coming into contact with the tube 10, on a surface 44, is thus encouraged to move towards the nearest base 50. Said mandrel portion 76 will be more urged to go to a base 50 than to a distal end 48, as this requires moving away from the tube 10.
  • These recessed shapes 46 are here distributed regularly according to their angular and radial positions. These recessed shapes 46 are adjacent and fill a circle concentric with the longitudinal axis 14 of the tube 10.
  • the reliefs 42 are adjacent and make it possible to prevent a sliding in rotation of optimally because a portion of the mandrel 76 is wedged between two reliefs 42. The tube 10 is thus immobilized on the mandrel 76.
  • These reliefs 42 are advantageously streaks 52 as can be seen in Figure 4, including flared section, for example triangular.
  • the tube 10 here comprises 120 streaks 52.
  • the greater the number of streaks 52 the less angular space 54 between each streak 52.
  • the decrease in the angular space 54 between each streak 52 makes it possible to limit the possible angular sliding between the mandrel 76 and the tube 10 and to facilitate the centering of the tube 10 with respect to the mandrel 76.
  • the dimensions of the neck 22, or the type of neck 22 may vary depending on the tube 10 to be manufactured while maintaining an identical skirt diameter.
  • a tube manufacturing line 10 may make it possible to manufacture several tube references, each with a different neck 22, but will generally be specific to a given skirt diameter 30.
  • the tube 10 shown in this embodiment has a neck 22 for a screw cap, but there are necks 22 for capsules or applicators.
  • the reliefs 42 are thus advantageously positioned near the junction between the skirt 30 and the tube head 18, preferably on the tube head 18, near the skirt 30.
  • the tube 10, preferably the tube head 18, may comprise a smooth zone 56 on the walls of the internal volume 12 adapted to cooperate with suction means 80 of the mandrel 76.
  • the smooth zone 56 is a single surface, it is that is to say without any edge that could hinder the operation of the suction means 80 of the mandrel 76.
  • the smooth zone 56 is not confused with the reliefs 42 so that the reliefs 42 do not constitute an air exhaust point hindering the operation of the suction means 80 of the mandrel 76.
  • the smooth zone 56 is between the neck 22 and the reliefs 42 to ensure better cooperation with the mandrel 76 so that the neck 22 does not is not an air exhaust point hindering the operation of the suction means 80 of the mandrel 76.
  • the tube head 18 is here frustoconical, its inner face is composed of several conical parts 60, 62, 64 concentric forming different angles with respect to the longitudinal axis 14 of the tube 10.
  • the neck 22 forms a first conical portion 60 to center of the tube head 18.
  • the smooth zone 56 forms a second conical portion 62 connected to the first conical portion 60.
  • the reliefs 42 extend along the generatrix of a third conical portion 64 formed by a portion of the head of tube 18, preferably the part at the periphery of the tube head 18.
  • the skirt 30 is connected to this third conical portion 64.
  • the skirt 30 has a thickness of between 0.2 mm and 1 mm, preferably between 0.3 mm and 0.5 mm.
  • the thickness of the tube 10 is between 0.5 mm and 3 mm, preferably between 1 mm and 2 mm.
  • the depth of the grooves 52 is between 0.1 mm and 0.7 mm, preferably between 0.2 mm and 0.4 mm. The depth of the grooves 52 is limited so as not to weaken the tube 10 and its barrier capacity.
  • the method of manufacturing a tube 10 is described below with reference to FIGS. 6, 8 and 9.
  • the skirt 30 is, for example, extruded in the form of a multilayer cylinder which is cut to the final dimension of the skirt 30.
  • a proximal end 32 which will be in contact with the tube head 18 is defined. Opposite the proximal end 32, a distal end 34 is left free to allow the subsequent filling of the tubes 10, as already explained. .
  • the skirt 30 is then positioned in a mold 68 so that the tube head 18 is overmolded on the proximal end 32 of the skirt 30.
  • FIG. 9 illustrates the mold 68 in which the tube head 18 is formed and simultaneously fixed on the skirt 30 by overmolding.
  • the mold 68 consists of a main imprint 70, platelets 72 and a punch 74.
  • the tube head 18 is injection molded in the mold 68 to meet the constraints of form including to have forms undercut as the threads 26 and to have a demolding of the fast tube 10 especially through the plates 72.
  • the punch 74 allows to form the reliefs 42, the smooth zone 56 and the upper part of the internal volume 12 of the tube 10. The punch 74 allows in in addition to holding the skirt 30 in the mold 68, and thus to fix and assemble the skirt 30 to the tube head 18.
  • the tube 10 thus formed, with the reliefs 42 according to the invention, is then fitted onto a mandrel 76.
  • the mandrel 76 is a tool able to move and / or position the tube 10 relative to the actuators involved in the process
  • the chuck 76 may also be adapted to cooperate with the actuators involved in the manufacturing process of the tube 10.
  • the mandrel 76 comprises a first end 82 adapted to cooperate with the tube 10, and a second end 84 capable of to cooperate with an actuator for moving and positioning the mandrel 76. It serves in particular to position the tube 10 so that it is decorated and / or corked.
  • FIGS. 7 and 8 show the tube 10 fitted on the mandrel 76 on the said first end 82.
  • the mandrel 76 comprises a part on the first end 82 having essentially the same shape as a part of the punch 74 serving to mold the tube 10 , in order to can cooperate with the tube 10 optimally.
  • the first end 82 of the mandrel 76 and the tube 10 are cylindrical, a rotational sliding may occur between the mandrel 76 and the tube 10 during decoration or corking. This rotating slowing slows down, hinders or prevents one or other of these operations.
  • the reliefs 42 on the tube 10 make it possible to limit or even prevent this sliding in rotation.
  • the mandrel 76 comprises vis-à-vis the reliefs 86 adapted to cooperate with the reliefs 42 of the tube 10 to more effectively limit the rotational sliding between the tube 10 and the mandrel 76. They constitute obstacles on which the reliefs 42 of the tube 10 come to bear to limit said sliding.
  • the tube 10 slides in rotation relative to the mandrel 76.
  • the angular offset between the orientation of the mandrel 76 and the mandrel 76 tube orientation increases.
  • the reliefs 86 of the mandrel 76 rest on the reliefs 42 of the tube 10, the sliding rotation is stopped.
  • the tube 10 retains its angular offset relative to the mandrel 76, it no longer increases.
  • the reliefs 86 of the mandrel 76 comprise surfaces 88 configured to allow a centering relative to the reliefs 42 of the tube 10. These reliefs 86 of the mandrel 76 define between each of them hollow recesses 90 narrowed from a distal end 92 at a base 94 of said reliefs 86 of the mandrel 76.
  • Two adjacent surfaces 88 of the reliefs 86 of the mandrel 76 can meet at common edges located on a distal end 92 of said reliefs 86 of the mandrel 76 or on a base 94 of said reliefs 86 The mandrel 76.
  • the relief 42 of the tube 10 will be more inclined to go towards a base 94 than towards a distal end 92, as this requires moving away from the mandrel 76.
  • These hollow shapes 90 are distributed regularly according to their angular and radial positions. These recessed shapes 90 are adjacent and fill a circle concentric with the longitudinal axis 96 of the mandrel 76.
  • the reliefs 86 of the mandrel 76 are adjacent and make it possible to prevent optimal sliding in rotation because at least one relief 42 of the tube 10 is wedged between two reliefs 86 of the mandrel 76.
  • the cooperation of the reliefs 42 of the tube 10 with the reliefs 86 adjacent the mandrel 76 serve to immobilize the tube 10 on the mandrel 76.
  • the mandrel 76 may comprise means at the first end 82 of the mandrel 76.
  • the suction means 80 are able to cooperate with a smooth zone 56 of the tube 10 which can be located on the tube head 18.
  • the suction means 80 are consisting of suction channels 80 internal to the mandrel 76 which are flush with the first end 82. They apply a depression in the internal volume 12 of the tube 10 to bring the tube 10 into contact with the mandrel 76. They maintain a surface contact between the tube 10 and the mandrel 76.
  • the suction channels 80 are flush in an area not covered with reliefs 86. There are several suction channels 80 for distributing the suction force on an annular zone concentric with the axis of the mandrel 76.
  • the tube 10 is immobilized on the mandrel 76 as shown in FIG. 7.
  • the suction of the channels attracts the tube 10 towards the mandrel 76
  • the surfaces of the tube 44 cooperate with those of the mandrel 86 to engage one another causing the complete immobilization of the tube 10 on the mandrel 76, by centering, as described above.
  • the slip is thus prevented during corking and / or decoration.
  • the reliefs 86 of the mandrel 76 are here ridges 95.
  • the ridges 95 of the mandrel 76 have a shape complementary to the ridges 52 present on the tube 10. These ridges 95 extend along the generatrix of a cone portion 98 formed at least a portion of the first end 82 of the mandrel 76.
  • the reliefs 42 on the tube 10 and the mandrel 76 advantageously cooperate in a conical fit. As illustrated, the reliefs of the tube 42 and the mandrel 86 extend along cone generatrices of similar directions, this makes it possible to cooperate the reliefs 42, 86 easily. Indeed, the distance for wedging the reliefs of the tube 42 relative to those of the mandrel 86 is important.
  • the tube 10 is capped independently of its decoration.
  • the mandrel 76 is placed in the internal volume 12 of the tube 10, as illustrated in FIG. 8.
  • the suction means 80 located at the first end 82 of the mandrel 76 apply a depression in the internal volume 12 of the tube 10 so as to contacting the tube 10 with the mandrel 76 and to maintain a surface contact between the tube 10 and the mandrel 76.
  • Figure 7 shows the tube 10 in contact with the mandrel 76 once the surface contact made.
  • the mandrel 76 rotates relative to a plugging tool and the plug applies a force on the tube 10.
  • the force applied by the plugging tool on the tube 10 causes the tube 10 to rotate relative to the mandrel 76, to as far as their respective reliefs are not already in the locked position, under the effect of the suction.
  • the corking tool contacts the thread (or threads) of the stopper with the thread (s) 26 of the tube 10.
  • the plugging tool rotates the plug relative to the tube 10, one can remain fixed or both turn in opposite directions.
  • the reliefs of the tube 42 and the mandrel 86 then cooperate to block the sliding in rotation.
  • the surfaces 44 of the tube 10 have made it possible to center and block the tube 10 with respect to the mandrel 76.
  • the time required for the tube 10 and the mandrel 76 to block the phenomenon of sliding in rotation is reduced.
  • the movement of the tube 10 with respect to the mandrel 76 is essentially rectilinear throughout the corking process.
  • the residual slip between the mandrel 76 and the tube 10, resulting in particular from the centering of one on the other, is less than 5 ° angle.
  • An additional action may be to tighten the plug relative to the tube 10 to a given torque, possibly using a torque meter or a torque wrench. This action can be performed by the same actuators following the action where the cap is rotated relative to the tube 10.
  • the decoration of the tube 10 is carried out independently of its corking.
  • the outer surface 16 of the tube 10, preferably of the skirt 30 may be decorated in the following decoration process.
  • the mandrel 76 is placed in the internal volume 12 of the tube 10.
  • the suction means 80 located at the first end 82 of the mandrel 76 applies a depression in the internal volume 12 of the tube 10 in order to bring the tube 10 into contact with the mandrel 76 and to maintain a surface contact between the tube 10 and the mandrel 76.
  • the decoration tool rotates relative to the tube 10 and applies a force on the tube 10.
  • the force applied by the decoration tool on the tube 10 slides the tube 10 in rotation relative to the mandrel 76, provided that their respective reliefs are not already in the locking position, under the effect of suction.
  • the decoration is made, for example, by silk screen printing or hot stamping.
  • the decoration is developed on the outer surface 16 of the tube 10, preferably on the surface of the skirt 30.
  • the tool around the tube 10, the tool or the tube 10 can remain fixed.
  • the decoration tool spreads and prints the decoration on the outer surface 16 of the tube 10.
  • the decoration can be made alternatively by screen printing.
  • the decoration is applied by a cylinder in external contact with the tube 10 which deposits the ink on the outer surface 16 of the tube 10.
  • a tube decoration 10 may require the successive application of several of these methods.
  • the reliefs of the tube 42 and the mandrel 86 then cooperate to block the sliding in rotation.
  • the surfaces 44 of the tube 10 made it possible to center and block the tube 10 with respect to the mandrel 76.
  • the time required for the tube 10 and the mandrel 76 to block the sliding phenomenon by rotation is reduced.
  • the movement of the tube 10 with respect to the mandrel 76 is essentially rectilinear throughout the decoration process.
  • the residual slip between the mandrel 76 and the tube 10, resulting in particular from the centering of one on the other, is less than 5 ° angle.
  • the tube 10 is decorated and corked directly after its manufacture.
  • the effort to be transmitted by each relief 42 of the tube 10 is relatively small compared to the effort of decoration or the corking effort.
  • the tube 10 according to the invention may comprise either a plug or a decor, preferably both.
  • the mandrel 76 used during capping and the mandrel 76 used during the decoration may be identical.
  • they can constitute a single piece used successively for the decoration process and the corking process.
  • the rotational slip that occurs in the corking step is virtually nil. Keeping the tube 10 in position relative to the mandrel 76 made on the inner face of the tube 10 during capping limits the risk of damage done to the decor.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Tubes (AREA)
  • Closures For Containers (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)

Abstract

The present invention relates to a tube (10) for a product having a liquid, pasty or gel-like consistency, including a tube head (18), a skirt (30) having a proximal end (32) connected to the tube head (18), and an open distal end (34), the skirt (30) and the tube head (18) forming an inner space (12) suitable for containing the product, the tube (10) being configured to be assembled with at least one of the elements between a stopper and a decorative element when engaging with a mandrel (76), raised areas (42) being provided on a wall of the inner space (12), the raised areas (42) being configured such as to limit a rotary sliding of the tube (10) relative to the mandrel (76).

Description

Tube, pour produit à consistance liquide, pâteuse ou sous forme de gel, notamment pour produits cosmétiques  Tube, for product with a liquid, pasty or gel-like consistency, especially for cosmetic products
La présente invention concerne les tubes pour la conservation et la distribution de produit à consistance liquide, pâteuse ou sous forme de gel. Elle trouve une application particulière pour des produits cosmétiques. La présente invention concerne également une jupe et une tête dudit tube ainsi que le procédé de fabrication dudit tube, son procédé de bouchonnage et/ou de décoration. The present invention relates to tubes for the preservation and distribution of liquid, pasty or gel-like product. It finds a particular application for cosmetic products. The present invention also relates to a skirt and a head of said tube as well as the method of manufacturing said tube, its method of corking and / or decoration.
Pour tenir compte de la vocation jetable du tube conforme à l'invention, il est préférable que le tube soit fabriqué avec des matériaux bon marché, un nombre d'étape de fabrication réduit et avec des méthodes de production automatisables. To take into account the disposable purpose of the tube according to the invention, it is preferable that the tube is manufactured with inexpensive materials, a reduced number of manufacturing steps and with automated production methods.
Il est aujourd'hui connu de fabriquer un tube en assemblant une jupe et une tête de tube définissant un volume interne destiné à accueillir un produit conservé dans le tube. Le tube est ensuite emmanché sur un mandrin pour être décoré et/ou bouchonné. Le mandrin sert à positionner le tube lorsqu'il est décoré et/ou bouchonné. Le mandrin et le tube sont cylindriques, un glissement en rotation peut ainsi se produire entre le mandrin et le tube lors de la décoration et/ou du bouchonnage. Ce glissement en rotation ralentit, gêne ou empêche l'une et/ou l'autre de ces opérations. It is now known to manufacture a tube by assembling a skirt and a tube head defining an internal volume for receiving a product stored in the tube. The tube is then fitted onto a mandrel to be decorated and / or capped. The mandrel is used to position the tube when it is decorated and / or corked. The mandrel and the tube are cylindrical, a rotational sliding can thus occur between the mandrel and the tube during the decoration and / or corking. This rotating slip slows, hinders or prevents one and / or the other of these operations.
Une solution pour diminuer ce glissement en rotation consiste à utiliser un mandrin présentant des arêtes sur son flanc. Cette solution a pour inconvénient de blesser l'intérieur du tube, et donc de réduire sa capacité à conserver le produit et/ou générer des particules susceptibles de polluer le produit. One solution to reduce this sliding in rotation is to use a mandrel having edges on its side. This solution has the disadvantage of injuring the inside of the tube, and thus reduce its ability to retain the product and / or generate particles that may pollute the product.
Une autre solution consiste à utiliser des galets presseurs qui viennent appuyer sur la surface externe de la jupe. Cette surface peut être décorée et les galets peuvent blesser ce décor. En effet, les décors sont vulnérables aux traces, déchirures et rayures indésirables laissées par des outils tels que des galets. Le réglage de la pression exercée par les galets sur le tube est fastidieux, une trop petite pression ne suffit pas à empêcher le glissement en rotation, une trop grande pression peut blesser le décor. De plus, une même ligne de fabrication de tube peut servir à plusieurs modèles de tube, les décors peuvent varier par exemple. La coopération entre un tube et des galets presseurs dépend du coefficient de frottement entre le décor et les galets presseurs. Si le décor varie, le coefficient de frottement change et il faut à nouveau régler la pression exercé par les galets presseurs. Il peut également y avoir une légère variation d'épaisseur de la paroi du tube nécessitant de refaire le réglage des galets. Cette solution présente donc le désavantage de pouvoir blesser l'extérieur du tube, et de nécessiter des temps de réglages longs et répétés. Another solution is to use pressure rollers that press on the outer surface of the skirt. This surface can be decorated and the pebbles can hurt this decoration. Indeed, sets are vulnerable to unwanted marks, tears and scratches left by tools such as pebbles. The adjustment of the pressure exerted by the rollers on the tube is tedious, a too small pressure is not sufficient to prevent the sliding in rotation, too much pressure can hurt the scene. In addition, the same tube manufacturing line can be used for several tube models, the decorations may vary for example. The cooperation between a tube and pressure rollers depends on the coefficient of friction between the decoration and the pressure rollers. If the decor varies, the coefficient of friction changes and it is necessary to adjust the pressure exerted by the pressure rollers again. There may also be a slight variation in the thickness of the wall of the tube necessitating redoing the adjustment of the rollers. This solution therefore has the disadvantage of being able to injure the outside of the tube, and to require long and repeated adjustment times.
On cherche donc à améliorer l'état de surface des tubes, en particulier éviter les rayures ou accrocs causés par des outillages intervenant sur la surface interne ou externe du tube lors de la fabrication et à réduire le temps de réglage d'une ligne de production de tubes. It is therefore sought to improve the surface condition of the tubes, in particular to avoid scratches or snags caused by tools acting on the inner or outer surface of the tube during manufacture and to reduce the adjustment time of a production line. of tubes.
Il est possible de manipuler un tube souple sans blesser le décor. En effet, il est connu un tube composé d'une tête de tube, d'une jupe et d'un fond, situé à l'opposé de la tête de tube, ledit tube formé en une seule pièce par injection et extrusion. Le fond comprend une forme d'engagement permettant le positionnement du tube. Le tube est décoré, bouchonné, puis le fond est sectionné, le tube est rempli et enfin scellé. It is possible to manipulate a flexible tube without hurting the decor. Indeed, it is known a tube consisting of a tube head, a skirt and a bottom, located opposite the tube head, said tube formed in one piece by injection and extrusion. The bottom includes a form of engagement for positioning the tube. The tube is decorated, corked, then the bottom is cut, the tube is filled and finally sealed.
Cette solution présente l'inconvénient d'utiliser de la matière qui est ensuite éliminée du tube, et d'ajouter une étape de sectionnement, ce qui augmente le coût de fabrication du tube. This solution has the disadvantage of using the material which is then removed from the tube, and to add a cutting step, which increases the manufacturing cost of the tube.
La présente invention vise à proposer une structure de tube, une tête de tube et une jupe ne présentant pas de tels inconvénients. La présente invention propose également un procédé de fabrication, un procédé de bouchonnage et un procédé de décoration d'un tel tube. The present invention aims to provide a tube structure, a tube head and a skirt not having such disadvantages. The present invention also provides a manufacturing method, a corking process and a method of decorating such a tube.
Pour cela la présente invention a pour objet un tube pour produit à consistance liquide, pâteuse ou sous forme de gel, ledit tube comprenant une tête de tube, une jupe présentant une extrémité proximale liée à la tête de tube et une extrémité distale ouverte, la jupe et la tête de tube formant un volume interne adapté pour contenir le produit, le tube étant configuré pour être assemblé avec au moins un des éléments parmi un bouchon et un décor lorsqu'il coopère avec un mandrin, des reliefs étant ménagés sur une paroi du volume interne, les reliefs étant configurés pour limiter un glissement en rotation du tube par rapport au mandrin. For this purpose, the subject of the present invention is a product tube with a liquid, pasty or gel-like consistency, said tube comprising a tube head, a skirt having a proximal end connected to the tube head and an open distal end, the skirt and the tube head forming an internal volume adapted to contain the product, the tube being configured to be assembled with at least one of a plug and a decoration when it cooperates with a mandrel, reliefs being formed on a wall of the internal volume, the reliefs being configured to limit a sliding rotation of the tube relative to the mandrel.
Comme expliqué plus haut, un glissement en rotation peut se produire pendant l'assemblage du tube avec un bouchon et/ou un décor. Le glissement en rotation peut notamment se produire lorsqu'un outil applique un couple audit tube. Un objectif de l'invention est de limiter le glissement en rotation entre le tube et le mandrin, et avantageusement d'avoir un glissement en rotation inférieur à 15°, préférentiellement 5° d'angle, voire nul, pendant l'assemblage du tube avec un bouchon et/ou un décor. As explained above, rotational sliding can occur during assembly of the tube with a plug and / or a decoration. Rotational sliding can occur in particular when a tool applies a torque to said tube. An object of the invention is to limit the rotational sliding between the tube and the mandrel, and advantageously to have a sliding in rotation less than 15 °, preferably 5 ° of angle, or even zero, during assembly of the tube with a cap and / or decor.
Le tube selon l'invention, lorsqu'il coopère avec un mandrin, a un glissement en rotation par rapport au mandrin limité grâce aux reliefs ménagés sur les parois du volume interne. Le tube est ainsi apte à être assemblé avec au moins un bouchon et/ou un décor selon un procédé qui ne dégrade pas son état de surface et qui nécessite un temps de réglage réduit, ceci tout en utilisant une quantité de matière minimale puisque les reliefs sont ménagés dans une zone, non-visible, faisant partie du tube lui-même. The tube according to the invention, when it cooperates with a mandrel, has a sliding in rotation relative to the mandrel limited by the reliefs formed on the walls of the internal volume. The tube is thus able to be assembled with at least one stopper and / or a decor according to a method which does not degrade its surface state and which requires a reduced adjustment time, this while using a minimal amount of material since the reliefs are formed in a non-visible area, forming part of the tube itself.
L'invention pourra être utilisée avec les caractéristiques suivantes, prises ensemble ou séparément : · les reliefs comportent des surfaces configurées pour permettre un centrage par rapport au mandrin ; The invention can be used with the following features, taken together or separately: · the reliefs have surfaces configured to allow centering relative to the mandrel;
• les reliefs définissent entre chacun d'eux des formes en creux rétrécies en allant d'une extrémité distale à une base desdits reliefs ; • the reliefs define between each of them hollow recessed shapes by going from a distal end to a base of said reliefs;
• les reliefs définissent entre chacun d'eux des formes en creux réparties régulièrement selon leurs positions angulaires et/ou radiales ; The reliefs define between each of them recessed shapes regularly distributed according to their angular and / or radial positions;
• les reliefs définissent entre chacun d'eux des formes en creux adjacentes et/ou remplissant au moins un cercle concentrique à un axe longitudinal du tube ; • the reliefs define between each of them recessed shapes adjacent and / or filling at least one circle concentric with a longitudinal axis of the tube;
• les reliefs définissent entre chacun d'eux des formes en creux s'étendant parallèlement à la jupe, radialement et/ou selon des génératrices d'une partie conique formée par au moins une partie de la tête de tube et/ou de la jupe, la partie conique étant la conjugaison d'un ou plusieurs cônes ; • the reliefs define between each of them recessed shapes extending parallel to the skirt, radially and / or according to generatrices of a conical portion formed by at least a portion of the tube head and / or the skirt the conical portion being the conjugation of one or more cones;
• les reliefs sont des stries ; • the reliefs are streaks;
• la tête de tube et la jupe sont deux parties distinctes jointes au niveau d'une zone d'interface ; • the tube head and the skirt are two separate parts joined at an interface area;
• les reliefs sont localisés au moins au niveau de la zone d'interface ; · la zone d'interface comprend une zone de recouvrement entre la jupe et la tête de tube ; The reliefs are located at least at the level of the interface zone; The interface zone comprises a zone of overlap between the skirt and the tube head;
• la surface interne de la jupe recouvre la surface externe de la tête de tube dans la zone de recouvrement ; The inner surface of the skirt covers the outer surface of the tube head in the overlap zone;
• la jupe est en matériau multicouche contenant une couche barrière ; The skirt is made of multilayer material containing a barrier layer;
• la profondeur des formes en creux est comprise entre 0,1mm et 0,7mm préférentiellement entre 0,2mm et 0,4mm ; The depth of the recessed shapes is between 0.1 mm and 0.7 mm, preferably between 0.2 mm and 0.4 mm;
• le tube comprend au moins 30 reliefs, préférentiellement au moins 60 reliefs et de manière encore plus préféré au moins 90 reliefs ; • le tube est essentiellement cylindrique ; • the tube comprises at least 30 reliefs, preferably at least 60 reliefs and even more preferably at least 90 reliefs; • the tube is essentially cylindrical;
• le tube comprend au moins une zone lisse sur les parois du volume interne apte à coopérer avec des moyens d'aspiration du mandrin ; • the tube comprises at least one smooth zone on the walls of the internal volume adapted to cooperate with suction means of the mandrel;
• la zone lisse s'étend sur une partie conique formée par au moins une partie de la tête de tube, la partie conique étant la conjugaison d'un ou plusieurs cônes ; • the smooth zone extends over a conical portion formed by at least a portion of the tube head, the conical portion being the conjugation of one or more cones;
• la zone lisse est une surface unique ; • the smooth zone is a single surface;
• le tube est bouché par un bouchon ; • the tube is plugged with a plug;
• Le tube est décoré. • The tube is decorated.
L'objet de l'invention comprend également une tête de tube pour un tube tel que décrit plus haut, les reliefs étant ménagés sur les parois du volume interne appartenant à la tête de tube. The object of the invention also comprises a tube head for a tube as described above, the reliefs being formed on the walls of the internal volume belonging to the tube head.
La tête de tube selon l'invention pourra être utilisée avec les caractéristiques suivantes, prises ensemble ou séparément : The tube head according to the invention may be used with the following characteristics, taken together or separately:
• la tête de tube comprend un goulot et une épaule de section circulaire en contact avec la jupe ; · les reliefs sont ménagés sur la face interne de l'épaule ; • the tube head comprises a neck and a shoulder of circular section in contact with the skirt; · The reliefs are formed on the inner face of the shoulder;
• la zone lisse est localisée sur la face interne de la tête de tube, préférentiellement entre le goulot et les reliefs. • The smooth zone is located on the inner face of the tube head, preferably between the neck and the reliefs.
L'objet de l'invention comprend également une jupe pour un tube tel que décrit plus haut, les reliefs étant ménagés sur les parois du volume interne appartenant à la jupe. L'objet de l'invention comprend également un procédé de fabrication d'un tube tel que décrit plus haut dans lequel les reliefs sont fabriqués lors d'une étape de fabrication de la jupe et/ou de la tête de tube. The object of the invention also comprises a skirt for a tube as described above, the reliefs being formed on the walls of the internal volume belonging to the skirt. The object of the invention also comprises a method of manufacturing a tube as described above in which the reliefs are manufactured during a step of manufacturing the skirt and / or the tube head.
Le procédé de fabrication selon l'invention pourra être utilisé avec les caractéristiques suivantes, prises ensemble ou séparément : · on assemble la jupe et la tête de tube ; The manufacturing method according to the invention can be used with the following characteristics, taken together or separately: · the skirt and the tube head are assembled;
• on extrude la jupe préalablement à son assemblage sur la tête de tube ; • on forme les reliefs par un poinçon ; • Extrude the skirt prior to assembly on the tube head; • the reliefs are formed by a punch;
• on surmoule la tête de tube par injection sur la partie proximale de la jupe ; dans ce cas la formation de la tête et la fixation de la tête de tube sur la jupe sont réalisés ensemble ; The injection-tube head is overmolded on the proximal portion of the skirt; in this case the formation of the head and the fixing of the tube head on the skirt are made together;
• le poinçon constitue une partie du moule qui permet de surmouler la tête de tube sur la jupe ; • the punch is a part of the mold that overmoulds the tube head on the skirt;
• on moule la tête de tube par injection préalablement à son assemblage sur la tête de tube ; The injection-molded tube head is molded prior to its assembly on the tube head;
• on moule la tête de tube par compression préalablement à son assemblage sur la tête de tube ; The tube head is molded by compression prior to its assembly on the tube head;
• on soude la tête de tube sur la jupe, avantageusement par soudage thermique ; The tube head is welded to the skirt, advantageously by thermal welding;
• le poinçon constitue une partie du moule de la tête de tube. • The punch forms part of the mold of the tube head.
L'objet de l'invention comprend également un procédé de bouchonnage d'un tube dans lequel le tube coopère avec un mandrin, le mandrin comprenant des reliefs aptes à coopérer avec les reliefs du tube. The object of the invention also comprises a method of capping a tube in which the tube cooperates with a mandrel, the mandrel comprising reliefs adapted to cooperate with the reliefs of the tube.
Le procédé de bouchonnage d'un tube selon l'invention pourra être utilisé avec les caractéristiques suivantes, prises ensemble ou séparément : The method of capping a tube according to the invention may be used with the following characteristics, taken together or separately:
• on place le mandrin dans le volume interne du tube ; • the mandrel is placed in the internal volume of the tube;
• le tube est emmanché sur le mandrin postérieurement à son assemblage ; • the tube is fitted on the mandrel after assembly;
• le mandrin comprend une première extrémité apte à coopérer avec le tube, et une seconde extrémité apte à coopérer avec un actionneur permettant de déplacer et de positionner le mandrin ; • the mandrel comprises a first end adapted to cooperate with the tube, and a second end adapted to cooperate with an actuator for moving and positioning the mandrel;
• ladite première extrémité du mandrin comprend une zone ayant essentiellement la même forme qu'une partie du poinçon, afin de pouvoir coopérer avec le tube de manière optimale ; Said first end of the mandrel comprises a zone having substantially the same shape as a part of the punch, in order to be able to cooperate with the tube optimally;
• les reliefs du mandrin sont situés à la première extrémité du mandrin ; • the reliefs of the mandrel are located at the first end of the mandrel;
• les reliefs sur le tube et le mandrin coopèrent selon un ajustement conique ; • the reliefs on the tube and the mandrel cooperate in a conical adjustment;
• on applique une dépression dans le volume interne du tube afin de mettre en contact le tube avec le mandrin et de maintenir un contact surfacique entre le tube et le mandrin ; • le mandrin comprend au moins un moyen d'aspiration situé au niveau de ladite première extrémité du mandrin ; A depression is applied in the internal volume of the tube in order to bring the tube into contact with the mandrel and to maintain surface contact between the tube and the mandrel; The mandrel comprises at least one suction means located at said first end of the mandrel;
• le moyen d'aspiration est apte à coopérer avec la zone lisse du tube ; • the suction means is adapted to cooperate with the smooth zone of the tube;
• le moyen d'aspiration permet de mettre en contact le tube avec le mandrin et de maintenir un contact surfacique entre le tube et le mandrin ; The suction means makes it possible to bring the tube into contact with the mandrel and to maintain surface contact between the tube and the mandrel;
• on fait tourner le mandrin par rapport au bouchon de sorte que le bouchon applique un effort sur le tube qui fait glisser le tube en rotation par rapport au mandrin, et les reliefs du tube et du mandrin coopèrent afin de bloquer le glissement en rotation. • The mandrel is rotated relative to the plug so that the plug applies a force on the tube which makes the tube slide in rotation relative to the mandrel, and the reliefs of the tube and the mandrel cooperate to block the sliding rotation.
L'objet de l'invention comprend également un procédé de décoration d'un tube dans lequel le tube coopère avec un mandrin, le mandrin comprenant des reliefs aptes à coopérer avec les reliefs du tube. The object of the invention also comprises a method of decorating a tube in which the tube cooperates with a mandrel, the mandrel comprising reliefs adapted to cooperate with the reliefs of the tube.
Le procédé de décoration d'un tube selon l'invention pourra être utilisé avec les caractéristiques suivantes, prises ensemble ou séparément : The method of decorating a tube according to the invention may be used with the following characteristics, taken together or separately:
• on place le mandrin dans le volume interne du tube ; • the mandrel is placed in the internal volume of the tube;
• le tube est emmanché sur le mandrin postérieurement à son assemblage ; • the tube is fitted on the mandrel after assembly;
• le mandrin comprend une première extrémité apte à coopérer avec le tube, et une seconde extrémité apte à coopérer avec un actionneur permettant de déplacer et de positionner le mandrin ; • the mandrel comprises a first end adapted to cooperate with the tube, and a second end adapted to cooperate with an actuator for moving and positioning the mandrel;
• ladite première extrémité du mandrin comprend une zone ayant essentiellement la même forme qu'une partie du poinçon, afin de pouvoir coopérer avec le tube de manière optimale ; Said first end of the mandrel comprises a zone having substantially the same shape as a part of the punch, in order to be able to cooperate with the tube optimally;
• les reliefs du mandrin sont situés à la première extrémité du mandrin ; • the reliefs of the mandrel are located at the first end of the mandrel;
• les reliefs sur le tube et le mandrin coopèrent selon un ajustement conique ; • the reliefs on the tube and the mandrel cooperate in a conical adjustment;
• on applique une dépression dans le volume interne du tube afin de mettre en contact le tube avec le mandrin et de maintenir un contact surfacique entre le tube et le mandrin ; A depression is applied in the internal volume of the tube in order to bring the tube into contact with the mandrel and to maintain surface contact between the tube and the mandrel;
• le mandrin comprend au moins un moyen d'aspiration situé au niveau de ladite première extrémité du mandrin ; The mandrel comprises at least one suction means located at said first end of the mandrel;
• le moyen d'aspiration est apte à coopérer avec la zone lisse du tube ; • le moyen d'aspiration permet de mettre en contact le tube avec le mandrin et de maintenir un contact surfacique entre le tube et le mandrin ; • the suction means is adapted to cooperate with the smooth zone of the tube; The suction means makes it possible to bring the tube into contact with the mandrel and to maintain surface contact between the tube and the mandrel;
• on fait tourner le mandrin par rapport à un outil de décoration de sorte que l'outil de décoration applique un effort sur le tube qui fait glisser le tube en rotation par rapport au mandrin, et les reliefs du tube et du mandrin coopèrent afin de bloquer le glissement en rotation. The mandrel is rotated relative to a decorating tool so that the decorating tool applies a force on the tube which makes the tube slide in rotation with respect to the mandrel, and the reliefs of the tube and the mandrel cooperate in order to block the sliding rotation.
Préférentiellement, le tube est décoré puis bouchonné. On comprend que l'invention, grâce à un maintien en position du tube par rapport au mandrin effectué sur la face interne du tube permet de limiter le risque de dégâts sur le décor lors du bouchonnage. Preferably, the tube is decorated and corked. It is understood that the invention, by maintaining in position the tube relative to the mandrel made on the inner face of the tube can limit the risk of damage to the decor during corking.
Le mandrin utilisé lors du procédé de bouchonnage et le mandrin utilisé lors du procédé de décoration peuvent être identiques. Avantageusement, ils peuvent constituer une unique pièce utilisée successivement pour le procédé de bouchonnage et le procédé de décoration. On peut avoir un procédé de décoration et de bouchonnage d'un tube comprenant l'une et/ou l'autre des étapes ci-après : The mandrel used during the corking process and the mandrel used in the decoration process may be identical. Advantageously, they can constitute a single piece used successively for the corking process and the decoration process. One can have a method of decorating and capping a tube comprising one and / or the other of the following steps:
• on place le mandrin dans le volume interne du tube destiné à contenir le produit cosmétique ; The mandrel is placed in the internal volume of the tube intended to contain the cosmetic product;
• on applique une dépression dans le volume interne du tube afin de mettre en contact le tube avec le mandrin et afin de maintenir un contact surfacique entre le tube et le mandrin ; • a depression is applied in the internal volume of the tube to bring the tube into contact with the mandrel and to maintain a surface contact between the tube and the mandrel;
• on fait tourner le mandrin par rapport à un outil de décoration de sorte que l'outil appliquant le décor applique un effort sur le tube qui fait glisser le tube en rotation par rapport au mandrin, et les reliefs du tube et du mandrin de décoration coopèrent afin de bloquer le glissement en rotation ; The mandrel is rotated with respect to a decorating tool so that the tool applying the decor applies a force on the tube which causes the tube to rotate in relation to the mandrel, and the reliefs of the tube and of the decorating mandrel cooperate in order to block the sliding in rotation;
• on fait tourner le mandrin par rapport au bouchon de sorte que le bouchon applique un effort sur le tube qui fait glisser le tube en rotation par rapport au mandrin, et les reliefs du tube et du mandrin coopèrent afin de bloquer le glissement en rotation. • The mandrel is rotated relative to the plug so that the plug applies a force on the tube which makes the tube slide in rotation relative to the mandrel, and the reliefs of the tube and the mandrel cooperate to block the sliding rotation.
D'autres objectifs, caractéristiques et avantages apparaîtront à la lecture de la description détaillée qui suit en référence aux dessins donnés à titre illustratif et non limitatif, parmi lesquels : Other objectives, characteristics and advantages will appear on reading the following detailed description with reference to the drawings given for illustrative and non-limiting purposes, among which:
• la figure 1 illustre, en perspective, la partie supérieure d'un tube selon l'invention en vue en coupe longitudinale ; • Figure 1 illustrates, in perspective, the upper part of a tube according to the invention in longitudinal sectional view;
• la figure 2 illustre, en perspective, une tête de tube selon l'invention en vue de dessus ; • Figure 2 illustrates, in perspective, a tube head according to the invention in top view;
• la figure 3 illustre, en perspective, une jupe selon l'invention ; la figure 4 illustre, en perspective, une tête de tube selon l'invention en vue de dessous ; FIG. 3 illustrates, in perspective, a skirt according to the invention; Figure 4 illustrates, in perspective, a tube head according to the invention in view from below;
• la figure 5 illustre partiellement, en perspective, un poinçon apte à former des reliefs pour un tube selon l'invention en vue en coupe axiale ; • Figure 5 partially illustrates, in perspective, a punch adapted to form reliefs for a tube according to the invention in axial sectional view;
• la figure 6 illustre, en perspective, un mandrin apte à coopérer avec tube selon l'invention ; · la figure 7 illustre partiellement, en perspective, un tube selon l'invention en vue en coupe longitudinale emmanché sur un mandrin non coupé; FIG. 6 illustrates, in perspective, a mandrel adapted to cooperate with a tube according to the invention; FIG. 7 partially illustrates, in perspective, a tube according to the invention in longitudinal sectional view fitted on an uncut mandrel;
• la figure 8 illustre partiellement, en perspective, un tube selon l'invention en vue en coupe longitudinale en cours d'emmanchement sur un mandrin non coupé ; • Figure 8 partially illustrates, in perspective, a tube according to the invention in longitudinal sectional view during fitting on an uncut mandrel;
• la figure 9 illustre un tube selon l'invention dans un moule en vue en coupe longitudinale. • Figure 9 illustrates a tube according to the invention in a mold in longitudinal sectional view.
Comme illustré aux figures 1 à 4, l'invention concerne un tube 10 pour produit à consistance liquide, pâteuse ou sous forme de gel. Le tube 10 est avantageusement un tube 10 flexible. On entend par tube 10 flexible, un tube 10 qui peut être pressé facilement sans se casser. Le terme flexible signifie également que si le tube 10 est soumis à une force comme celle se produisant lors d'un remplissage avec une composition, ou d'un pressage entre des doigts, sa forme va changer sans qu'il ne se casse. As illustrated in FIGS. 1 to 4, the invention relates to a product tube 10 with a liquid, pasty or gel-like consistency. The tube 10 is advantageously a flexible tube. By flexible tube is meant a tube which can be pressed easily without breaking. The term flexible also means that if the tube 10 is subjected to a force such as that occurring during a filling with a composition, or a pressing between fingers, its shape will change without it breaking.
Ce tube 10 comprend une tête de tube 18 et une jupe 30, notamment cylindrique. La tête de tube 18 est avantageusement plus rigide que la jupe 30 pour permettre à toute la composition de sortir. Lorsque l'on applique une pression sur l'ensemble du tube flexible 10 : la jupe 30 va s'aplatir avant que la tête de tube 18 ne soit écrasée. Ladite jupe 30 présente une extrémité proximale 32 liée à la tête de tube 18 et une extrémité distale 34 ouverte, la jupe 30 et la tête de tube 18 formant un volume interne 12 adapté pour contenir le produit. L'extrémité distale 34 du tube 10 n'est pas visible à la figure 1. Il faut comprendre qu'elle reste ouverte jusqu'au remplissage du tube 10. Une fois le tube rempli, elle est ensuite refermée pour maintenir le produit dans le tube 10, notamment par scellage. Dans des cas plus rares, le produit pourra être introduit dans le tube par la tête de tube, la jupe ayant été préalablement fermée. This tube 10 comprises a tube head 18 and a skirt 30, in particular cylindrical. The tube head 18 is advantageously more rigid than the skirt 30 to allow the entire composition to come out. When applying pressure to the entire flexible tube 10: the skirt 30 will flatten before the tube head 18 is crushed. Said skirt 30 has a proximal end 32 connected to the tube head 18 and a distal end 34 open, the skirt 30 and the tube head 18 forming an internal volume 12 adapted to contain the product. The distal end 34 of the tube 10 is not visible in FIG. 1. It should be understood that it remains open until the tube 10 is filled. Once the tube is filled, it is then closed again to hold the product in the tube. tube 10, in particular by sealing. In rarer cases, the product may be introduced into the tube through the tube head, the skirt having been previously closed.
La tête de tube 18 comprend une épaule 20 de section circulaire et un goulot 22. Le goulot 22 comprend un bec 24 avec un filet 26 apte à coopérer avec un bouchon à visser. Le bec 24 est apte à délivrer le produit contenu dans le tube 10 quand un bouchon ne l'obture pas. Pour délivrer le produit, il faut presser sur le tube 10, la jupe 30 s'aplatie sous la pression, le produit est pressé vers la tête de tube 18, puis vers le goulot 22 et enfin il passe à travers le bec 24 pour être délivré à la sortie 28 du bec. Comme déjà dit, le produit a une consistance liquide, pâteuse ou est sous forme de gel. Certains produits sont difficiles à conserver dans des tubes. Les tubes doivent donc fournir une résistance chimique suffisante. Par produits difficiles à conserver il faut comprendre des produits contenant des ingrédients acides, basiques et/ou oxydants. Ces ingrédients sont souvent compris dans les classes chimiques des hydroxydes inorganiques, des halogénures inorganiques ou des peroxydes. La classe des hydroxydes inorganiques inclue l'hydroxyde d'ammonium ainsi que les hydroxydes de métal alcalin et alcalinoterreux (e.g., hydroxyde de potassium et hydroxyde calcium). La classe des halogénures inorganiques incluent les fluorites, chlorites, bromates, et iodites d'ammonium et les métaux comme des métaux de transition, les métaux alcalins et les métaux alcalinoterreux. On peut citer comme exemple spécifique le chlorite d'aluminium, le chlorite de potassium et la fluorite d'ammonium. Les peroxydes incluent le peroxyde d'hydrogène, le peroxyde d'urée (carbamate), et les peroxydes alcalin et alcalinoterreux (e.g., peroxyde de sodium). Les produits agressifs correspondants ont des valeurs de pH de moins qu'environ 4 (e.g., dans la plage d'environ 1 à environ 4, ou d'environ 1 à environ 3) ou à l'opposé des valeurs de pH à plus d'environ 9 (e.g., dans la plage d'environ 10 à environ 13, ou d'environ 10 à environ 12), et souvent plus d'environ 11 (e.g., dans la plage d'environ 11 à environ 14). Le tube 10 conforme à l'invention est avantageusement apte à conserver et à distribuer un produit de type cosmétique, notamment tel qu'évoqué plus haut. La jupe 30 est, par exemple, en matériau multicouche contenant au moins une couche barrière afin d'empêcher la pénétration de certains gaz et liquides dans le tube 10, qui pourraient altérer le contenu du tube 10, et afin de bloquer l'évacuation de certains composants du produit que pourrait contenir le tube 10, ce qui pourrait conduire à la dégradation du produit lui-même. Autrement dit, des obstacles ou des couches barrières dans l'épaisseur du tube 10, permettent d'inhiber l'infiltration et la sortie indésirables des composants au travers du tube 10. Encore autrement dit, une telle jupe 30 permet d'améliorer l'étanchéité du tube 10. La tête de tube 18 peut comporter, elle aussi, une couche barrière ou un insert pour améliorer là également l'étanchéité du tube 10. La tête de tube 18 et la jupe 30 sont ici deux parties distinctes jointes au niveau d'une zone d'interface 38. La jupe 30 et la tête de tube 18 se recouvrent dans cette zone d'interface 38. La surface interne de la jupe 30 pourra en particulier recouvrir la surface externe 16 de la tête de tube 18 dans une zone de recouvrement 40. Dit autrement, un produit qui se trouverait dans le volume interne 12 à proximité de la zone de recouvrement 40 serait séparé de l'environnement par une couche de matière appartenant à la tête de tube 18 et par une couche de matière appartenant à la jupe 30. The tube head 18 comprises a shoulder 20 of circular section and a neck 22. The neck 22 comprises a spout 24 with a thread 26 adapted to cooperate with a screw cap. The nozzle 24 is able to deliver the product contained in the tube 10 when a plug does not close it. To deliver the product, it must be pressed on the tube 10, the skirt 30 flattened under pressure, the product is pressed to the tube head 18, then to the neck 22 and finally it passes through the nozzle 24 to be delivered to the outlet 28 of the spout. As already said, the product has a liquid consistency, pasty or is in the form of gel. Some products are difficult to keep in tubes. The tubes must therefore provide sufficient chemical resistance. By products difficult to preserve must be understood products containing acidic, basic and / or oxidizing ingredients. These ingredients are often included in the chemical classes of inorganic hydroxides, inorganic halides or peroxides. The class of inorganic hydroxides includes ammonium hydroxide as well as alkali and alkaline earth metal hydroxides (eg, potassium hydroxide and calcium hydroxide). The class of inorganic halides include fluorites, chlorites, bromates, and ammonium iodites, and metals such as transition metals, alkali metals, and alkaline earth metals. Specific examples include aluminum chlorite, potassium chlorite and ammonium fluorite. Peroxides include hydrogen peroxide, urea peroxide (carbamate), and alkaline and alkaline earth peroxides (eg, sodium peroxide). The corresponding aggressive products have pH values of less than about 4 (eg, in the range of about 1 to about 4, or about 1 to about 3) or the opposite of pH values at greater than about about 9 (eg, in the range of about 10 to about 13, or about 10 to about 12), and often more than about 11 (eg, in the range of about 11 to about 14). The tube 10 according to the invention is advantageously able to store and distribute a product of the cosmetic type, especially as mentioned above. The skirt 30 is, for example, a multilayer material containing at least one barrier layer to prevent the penetration of certain gases and liquids in the tube 10, which could alter the contents of the tube 10, and to block the evacuation of some components of the product that could contain the tube 10, which could lead to the degradation of the product itself. In other words, obstacles or barrier layers in the thickness of the tube 10, can inhibit the undesirable infiltration and exit of the components through the tube 10. In other words, such a skirt 30 can improve the Sealing tube 10. The tube head 18 may also comprise a barrier layer or an insert to improve there also the sealing of the tube 10. The tube head 18 and the skirt 30 are here two separate parts joined at the level an interface zone 38. The skirt 30 and the tube head 18 overlap in this interface zone 38. The inner surface of the skirt 30 may in particular cover the outer surface 16 of the tube head 18 in a covering area 40. In other words, a product that would be in the volume internal 12 in the vicinity of the overlap zone 40 would be separated from the environment by a layer of material belonging to the tube head 18 and by a layer of material belonging to the skirt 30.
Selon l'invention, des reliefs 42 sont ménagés sur une paroi du volume interne 12 du tube 10. Les reliefs 42 sont localisés, par exemple, au niveau de la zone d'interface 38. Les reliefs 42 sont configurés pour limiter un glissement en rotation du tube 10 par rapport au mandrin 76. Ils constituent des obstacles sur lesquels le mandrin 76 vient s'appuyer pour limiter le glissement en rotation du tube. Quand le mandrin 76 tourne et que le tube 10 est empêché ou ralenti dans le mouvement de rotation, notamment par des outils, le tube 10 glisse en rotation par rapport au mandrin 76. Le décalage angulaire entre l'orientation du mandrin 76 et l'orientation du tube 10 augmente. Quand le mandrin 76 s'appuie sur un relief 42, le glissement en rotation est stoppé. Le tube 10 conserve son décalage angulaire par rapport au mandrin 76, il n'augmente plus. Les reliefs 42 sont décrits ci-après en référence à la figure 5 représentant le poinçon 74 qui permet de fabriquer lesdits reliefs 42. Les formes des reliefs 42 et du poinçon 74 sont considérées ici comme complémentaire. Le mandrin 76 est décrit ci-après en référence à la figure 6. According to the invention, reliefs 42 are formed on a wall of the internal volume 12 of the tube 10. The reliefs 42 are located, for example, at the interface zone 38. The reliefs 42 are configured to limit a slip in rotation of the tube 10 relative to the mandrel 76. They constitute obstacles on which the mandrel 76 comes to bear to limit the sliding rotation of the tube. When the mandrel 76 rotates and the tube 10 is prevented or slowed in the rotational movement, in particular by tools, the tube 10 slides in rotation relative to the mandrel 76. The angular offset between the orientation of the mandrel 76 and the mandrel 76 tube orientation increases. When the mandrel 76 is supported on a relief 42, the sliding rotation is stopped. The tube 10 retains its angular offset relative to the mandrel 76, it no longer increases. The reliefs 42 are described hereinafter with reference to FIG. 5 representing the punch 74 which makes it possible to manufacture said reliefs 42. The shapes of the reliefs 42 and the punch 74 are considered here as complementary. The mandrel 76 is described below with reference to FIG.
Les reliefs 42 comportent des surfaces 44 configurées pour permettre un centrage par rapport au mandrin 76. On entend par là que les surfaces 44 des reliefs 42 sont configurées pour permettre une mise en place du mandrin 76 dans une position de blocage par simple glissement, comprenant une composante axiale selon l'axe longitudinal du tube, des surfaces 44 sur le mandrin 76, sans avoir à opérer un réglage angulaire relatif préalable du mandrin 76 par rapport au tube 10. The reliefs 42 comprise surfaces 44 configured to allow centering with respect to the mandrel 76. By this is meant that the surfaces 44 of the reliefs 42 are configured to allow placement of the mandrel 76 in a blocking position by simple sliding, comprising an axial component along the longitudinal axis of the tube, surfaces 44 on the mandrel 76, without having to make a prior relative angular adjustment of the mandrel 76 relative to the tube 10.
Pour cela, ces reliefs 42 définissent entre chacun d'eux, par exemple, des formes en creux 46 rétrécies en allant d'une extrémité distale 48 à une base 50 desdits reliefs 42. Les formes en creux 46 appartiennent, avantageusement, soit à la jupe 30 soit, comme illustré, à la tête de tube 18. Elles s'étendent, par exemple, parallèlement à la jupe 30, radialement et/ou, comme illustré, selon des génératrices d'une partie conique 64 formée par au moins une partie de la tête de tube 18. Deux surfaces 44 adjacentes des reliefs 42 peuvent se rencontrer au niveau d'arêtes communes situées sur une extrémité distale 48 desdits reliefs 42 du tube ou sur une base 50 desdits reliefs 42 du tube. Une partie du mandrin 76 venant en contact avec le tube 10, sur une surface 44, est ainsi incitée à se diriger vers la base 50 la plus proche. Ladite partie de mandrin 76 sera plus incitée à aller vers une base 50 que vers une extrémité distale 48, car cela nécessite de s'éloigner du tube 10. For this, these reliefs 42 define between each of them, for example, recessed shapes 46 narrowed by going from a distal end 48 to a base 50 of said reliefs 42. The recessed shapes 46 belong, advantageously, either to the skirt 30 is, as illustrated, to the tube head 18. They extend, for example, parallel to the skirt 30, radially and / or, as illustrated, according to generatrices of a conical portion 64 formed by at least one part of the tube head 18. Two adjacent surfaces 44 reliefs 42 may meet at common edges located on a distal end 48 of said reliefs 42 of the tube or on a base 50 of said reliefs 42 of the tube. Part of the mandrel 76 coming into contact with the tube 10, on a surface 44, is thus encouraged to move towards the nearest base 50. Said mandrel portion 76 will be more urged to go to a base 50 than to a distal end 48, as this requires moving away from the tube 10.
Ces formes en creux 46 sont ici réparties régulièrement selon leurs positions angulaires et radiales. Ces formes en creux 46 sont adjacentes et remplissent un cercle concentrique à l'axe longitudinal 14 du tube 10. Les reliefs 42 sont adjacents et permettent d'empêcher un glissement en rotation de manière optimale car une partie du mandrin 76 est calée entre deux reliefs 42. Le tube 10 est ainsi immobilisé sur le mandrin 76. These recessed shapes 46 are here distributed regularly according to their angular and radial positions. These recessed shapes 46 are adjacent and fill a circle concentric with the longitudinal axis 14 of the tube 10. The reliefs 42 are adjacent and make it possible to prevent a sliding in rotation of optimally because a portion of the mandrel 76 is wedged between two reliefs 42. The tube 10 is thus immobilized on the mandrel 76.
Ces reliefs 42 sont avantageusement des stries 52 comme on peut le voir sur la figure 4, notamment de section évasée, par exemple triangulaire. Le tube 10 comprend ici 120 stries 52. Plus le nombre de stries 52 est important, moins il y a d'espace angulaire 54 entre chaque strie 52. La diminution de l'espace angulaire 54 entre chaque strie 52 permet de limiter d'autant le glissement angulaire possible entre le mandrin 76 et le tube 10 et de faciliter le centrage du tube 10 par rapport au mandrin 76. These reliefs 42 are advantageously streaks 52 as can be seen in Figure 4, including flared section, for example triangular. The tube 10 here comprises 120 streaks 52. The greater the number of streaks 52, the less angular space 54 between each streak 52. The decrease in the angular space 54 between each streak 52 makes it possible to limit the possible angular sliding between the mandrel 76 and the tube 10 and to facilitate the centering of the tube 10 with respect to the mandrel 76.
Les dimensions du goulot 22, ou le type de goulot 22 peuvent varier en fonction du tube 10 à fabriquer tout en conservant un diamètre de jupe 30 identique. Donc une ligne de fabrication de tube 10 pourra permettre de fabriquer plusieurs références de tubes, chacun avec un goulot 22 différent, mais sera en général spécifique à un diamètre de jupe 30 donné. Le tube 10 représenté dans cet exemple de réalisation a un goulot 22 pour bouchon à visser, mais il existe des goulots 22 pour des capsules ou des applicateurs. On peut également faire varier le diamètre du goulot 22. Il est donc intéressant d'éloigner la zone où le mandrin 76 est en contact avec les reliefs 42 de la zone comprenant le goulot 22. Les reliefs 42 sont ainsi avantageusement positionnés à proximité de la jonction entre la jupe 30 et la tête de tube 18, préférentiellement sur la tête de tube 18, à proximité de la jupe 30. The dimensions of the neck 22, or the type of neck 22 may vary depending on the tube 10 to be manufactured while maintaining an identical skirt diameter. Thus, a tube manufacturing line 10 may make it possible to manufacture several tube references, each with a different neck 22, but will generally be specific to a given skirt diameter 30. The tube 10 shown in this embodiment has a neck 22 for a screw cap, but there are necks 22 for capsules or applicators. One can also vary the diameter of the neck 22. It is therefore advantageous to move the area where the mandrel 76 is in contact with the reliefs 42 of the zone comprising the neck 22. The reliefs 42 are thus advantageously positioned near the junction between the skirt 30 and the tube head 18, preferably on the tube head 18, near the skirt 30.
Le tube 10, préférentiellement la tête de tube 18, pourra comprendre une zone lisse 56 sur les parois du volume interne 12 apte à coopérer avec des moyens d'aspiration 80 du mandrin 76. La zone lisse 56 est une surface unique, c'est-à-dire ne comportant pas d'arête qui pourrait gêner le fonctionnement des moyens d'aspiration 80 du mandrin 76. En particulier, la zone lisse 56 n'est pas confondue avec les reliefs 42 de sorte que les reliefs 42 ne constituent pas un point d'échappement d'air gênant le fonctionnement du moyen d'aspiration 80 du mandrin 76. La zone lisse 56 est comprise entre le goulot 22 et les reliefs 42 pour assurer une meilleure coopération avec le mandrin 76 afin que le goulot 22 ne constitue pas un point d'échappement d'air gênant le fonctionnement des moyens d'aspiration 80 du mandrin 76. The tube 10, preferably the tube head 18, may comprise a smooth zone 56 on the walls of the internal volume 12 adapted to cooperate with suction means 80 of the mandrel 76. The smooth zone 56 is a single surface, it is that is to say without any edge that could hinder the operation of the suction means 80 of the mandrel 76. In particular, the smooth zone 56 is not confused with the reliefs 42 so that the reliefs 42 do not constitute an air exhaust point hindering the operation of the suction means 80 of the mandrel 76. The smooth zone 56 is between the neck 22 and the reliefs 42 to ensure better cooperation with the mandrel 76 so that the neck 22 does not is not an air exhaust point hindering the operation of the suction means 80 of the mandrel 76.
La tête de tube 18 est ici tronconique, sa face interne est composée de plusieurs parties coniques 60, 62, 64 concentriques formant des angles différents par rapport à l'axe longitudinal 14 du tube 10. Le goulot 22 forme une première partie conique 60 au centre de la tête de tube 18. La zone lisse 56 forme une seconde partie conique 62 relié à la première partie conique 60. Enfin les reliefs 42 s'étendent selon la génératrice d'une troisième partie conique 64 formée par une partie de la tête de tube 18, préférentiellement la partie en périphérie de la tête de tube 18. La jupe 30 est reliée à cette troisième partie conique 64. The tube head 18 is here frustoconical, its inner face is composed of several conical parts 60, 62, 64 concentric forming different angles with respect to the longitudinal axis 14 of the tube 10. The neck 22 forms a first conical portion 60 to center of the tube head 18. The smooth zone 56 forms a second conical portion 62 connected to the first conical portion 60. Finally, the reliefs 42 extend along the generatrix of a third conical portion 64 formed by a portion of the head of tube 18, preferably the part at the periphery of the tube head 18. The skirt 30 is connected to this third conical portion 64.
La jupe 30 a une épaisseur comprise entre 0,2mm et 1mm, préférentiellement entre 0,3mm et 0,5mm. Dans la zone d'interface 38 entre la jupe 30 et la tête de tube 18, l'épaisseur du tube 10 est comprise entre 0,5mm et 3mm, préférentiellement entre 1mm et 2mm. La profondeur des stries 52 est comprise entre 0,1mm et 0,7mm préférentiellement entre 0,2mm et 0,4mm. La profondeur des stries 52 est limitée pour ne pas fragiliser le tube 10 et sa capacité à faire barrière. The skirt 30 has a thickness of between 0.2 mm and 1 mm, preferably between 0.3 mm and 0.5 mm. In the interface zone 38 between the skirt 30 and the tube head 18, the thickness of the tube 10 is between 0.5 mm and 3 mm, preferably between 1 mm and 2 mm. The depth of the grooves 52 is between 0.1 mm and 0.7 mm, preferably between 0.2 mm and 0.4 mm. The depth of the grooves 52 is limited so as not to weaken the tube 10 and its barrier capacity.
Le procédé de fabrication d'un tube 10 est décrit ci-après en référence aux figures 6, 8 et 9. La jupe 30 est, par exemple, extrudée sous la forme d'un cylindre multicouche qui est coupé à la dimension définitive de la jupe 30. On définit une extrémité proximale 32 qui sera en contact avec la tête de tube 18. A l'opposé de l'extrémité proximale 32, une extrémité distale 34 est laissée libre pour permettre le remplissage ultérieur des tubes 10, comme déjà expliqué. La jupe 30 est ensuite positionnée dans un moule 68 afin que la tête de tube 18 soit surmoulée sur l'extrémité proximale 32 de la jupe 30. Le figure 9 illustre le moule 68 dans lequel la tête de tube 18 est formée et simultanément fixée sur la jupe 30 par surmoulage. Le moule 68 se compose d'une empreinte principale 70, de plaquettes 72 et d'un poinçon 74. La tête de tube 18 est moulée par injection dans le moule 68 pour répondre aux contraintes de forme notamment pour avoir des formes en contre-dépouille comme les filets 26 et pour avoir un démoulage du tube 10 rapide notamment grâce aux plaquettes 72. Le poinçon 74 permet de former les reliefs 42, la zone lisse 56 et la partie supérieure du volume interne 12 du tube 10. Le poinçon 74 permet en outre de tenir la jupe 30 dans le moule 68, et donc de fixer et d'assembler la jupe 30 à la tête de tube 18. The method of manufacturing a tube 10 is described below with reference to FIGS. 6, 8 and 9. The skirt 30 is, for example, extruded in the form of a multilayer cylinder which is cut to the final dimension of the skirt 30. A proximal end 32 which will be in contact with the tube head 18 is defined. Opposite the proximal end 32, a distal end 34 is left free to allow the subsequent filling of the tubes 10, as already explained. . The skirt 30 is then positioned in a mold 68 so that the tube head 18 is overmolded on the proximal end 32 of the skirt 30. FIG. 9 illustrates the mold 68 in which the tube head 18 is formed and simultaneously fixed on the skirt 30 by overmolding. The mold 68 consists of a main imprint 70, platelets 72 and a punch 74. The tube head 18 is injection molded in the mold 68 to meet the constraints of form including to have forms undercut as the threads 26 and to have a demolding of the fast tube 10 especially through the plates 72. The punch 74 allows to form the reliefs 42, the smooth zone 56 and the upper part of the internal volume 12 of the tube 10. The punch 74 allows in in addition to holding the skirt 30 in the mold 68, and thus to fix and assemble the skirt 30 to the tube head 18.
Le tube 10 ainsi formé, avec les reliefs 42 conformes à l'invention, est ensuite emmanché sur un mandrin 76. Le mandrin 76 est un outil apte à déplacer et/ou à positionner le tube 10 par rapport à des actionneurs intervenant sur le processus de fabrication du tube 10. Le mandrin 76 peut également être apte à coopérer avec les actionneurs intervenant dans le processus de fabrication du tube 10. Le mandrin 76 comprend une première extrémité 82 apte à coopérer avec le tube 10, et une seconde extrémité 84 apte à coopérer avec un actionneur permettant de déplacer et de positionner le mandrin 76. Il sert notamment à positionner le tube 10 pour qu'il soit décoré et/ou bouchonné. Les figures 7 et 8 présentent le tube 10 emmanché sur le mandrin 76 sur cette dite première extrémité 82. Le mandrin 76 comprend une partie sur la première extrémité 82 ayant essentiellement la même forme qu'une partie du poinçon 74 servant à mouler le tube 10, afin de pouvoir coopérer avec le tube 10 de manière optimale. La première extrémité 82 du mandrin 76 et le tube 10 sont cylindriques, un glissement en rotation peut se produire entre le mandrin 76 et le tube 10 lors de la décoration ou du bouchonnage. Ce glissement en rotation ralentit, gêne ou empêche l'une ou l'autre de ces opérations. Les reliefs 42 sur le tube 10 permettent de limiter, voire d'empêcher ce glissement en rotation. The tube 10 thus formed, with the reliefs 42 according to the invention, is then fitted onto a mandrel 76. The mandrel 76 is a tool able to move and / or position the tube 10 relative to the actuators involved in the process The chuck 76 may also be adapted to cooperate with the actuators involved in the manufacturing process of the tube 10. The mandrel 76 comprises a first end 82 adapted to cooperate with the tube 10, and a second end 84 capable of to cooperate with an actuator for moving and positioning the mandrel 76. It serves in particular to position the tube 10 so that it is decorated and / or corked. FIGS. 7 and 8 show the tube 10 fitted on the mandrel 76 on the said first end 82. The mandrel 76 comprises a part on the first end 82 having essentially the same shape as a part of the punch 74 serving to mold the tube 10 , in order to can cooperate with the tube 10 optimally. The first end 82 of the mandrel 76 and the tube 10 are cylindrical, a rotational sliding may occur between the mandrel 76 and the tube 10 during decoration or corking. This rotating slowing slows down, hinders or prevents one or other of these operations. The reliefs 42 on the tube 10 make it possible to limit or even prevent this sliding in rotation.
Comme on l'aura compris, le mandrin 76 comprend en vis-à-vis des reliefs 86 aptes à coopérer avec les reliefs 42 du tube 10 pour limiter plus efficacement le glissement en rotation entre le tube 10 et le mandrin 76. Ils constituent des obstacles sur lesquels les reliefs 42 du tube 10 viennent s'appuyer pour limiter ledit glissement. Quand le mandrin 76 tourne et que le tube 10 est empêché ou ralenti dans le mouvement de rotation, notamment par des outils, le tube 10 glisse en rotation par rapport au mandrin 76. Le décalage angulaire entre l'orientation du mandrin 76 et l'orientation du tube 10 augmente. Quand les reliefs 86 du mandrin 76 s'appuient sur les reliefs 42 du tube 10, le glissement en rotation est stoppé. Le tube 10 conserve son décalage angulaire par rapport au mandrin 76, il n'augmente plus. Les reliefs 86 du mandrin 76 comportent des surfaces 88 configurées pour permettre un centrage par rapport aux reliefs 42 du tube 10. Ces reliefs 86 du mandrin 76 définissent entre chacun d'eux des formes en creux 90 rétrécies en allant d'une extrémité distale 92 à une base 94 desdits reliefs 86 du mandrin 76. Deux surfaces 88 adjacentes des reliefs 86 du mandrin 76 peuvent se rencontrer au niveau d'arêtes communes situées sur une extrémité distale 92 desdits reliefs 86 du mandrin 76 ou sur une base 94 desdits reliefs 86 du mandrin 76. Un relief 42 du tube 10 venant en contact avec le mandrin 76, sur une surface 88 du mandrin 76, est incité à se diriger vers la base 94 du mandrin 76 la plus proche. Le relief 42 du tube 10 sera plus incité à aller vers une base 94 que vers une extrémité distale 92, car cela nécessite de s'éloigner du mandrin 76. As will have been understood, the mandrel 76 comprises vis-à-vis the reliefs 86 adapted to cooperate with the reliefs 42 of the tube 10 to more effectively limit the rotational sliding between the tube 10 and the mandrel 76. They constitute obstacles on which the reliefs 42 of the tube 10 come to bear to limit said sliding. When the mandrel 76 rotates and the tube 10 is prevented or slowed in the rotational movement, in particular by tools, the tube 10 slides in rotation relative to the mandrel 76. The angular offset between the orientation of the mandrel 76 and the mandrel 76 tube orientation increases. When the reliefs 86 of the mandrel 76 rest on the reliefs 42 of the tube 10, the sliding rotation is stopped. The tube 10 retains its angular offset relative to the mandrel 76, it no longer increases. The reliefs 86 of the mandrel 76 comprise surfaces 88 configured to allow a centering relative to the reliefs 42 of the tube 10. These reliefs 86 of the mandrel 76 define between each of them hollow recesses 90 narrowed from a distal end 92 at a base 94 of said reliefs 86 of the mandrel 76. Two adjacent surfaces 88 of the reliefs 86 of the mandrel 76 can meet at common edges located on a distal end 92 of said reliefs 86 of the mandrel 76 or on a base 94 of said reliefs 86 The mandrel 76. A relief 42 of the tube 10 coming into contact with the mandrel 76, on a surface 88 of the mandrel 76, is urged to move towards the base 94 of the mandrel 76 nearest. The relief 42 of the tube 10 will be more inclined to go towards a base 94 than towards a distal end 92, as this requires moving away from the mandrel 76.
Ces formes en creux 90 sont réparties régulièrement selon leurs positions angulaires et radiales. Ces formes en creux 90 sont adjacentes et remplissent un cercle concentrique à l'axe longitudinal 96 du mandrin 76. Les reliefs 86 du mandrin 76 sont adjacents et permettent d'empêcher un glissement en rotation de manière optimale car au moins un relief 42 du tube 10 est calé entre deux reliefs 86 du mandrin 76. La coopération des reliefs 42 du tube 10 avec les reliefs 86 adjacent du mandrin 76 permettent d'immobiliser le tube 10 sur le mandrin 76. Comme déjà évoqué, le mandrin 76 pourront comprendre des moyens d'aspiration 80 situés à la première extrémité 82 du mandrin 76. Les moyens d'aspiration 80 sont aptes à coopérer avec une zone lisse 56 du tube 10 qui peut être localisée sur la tête de tube 18. Les moyens d'aspiration 80 sont constitués de canaux d'aspiration 80 internes au mandrin 76 qui affleurent à la première extrémité 82. Ils appliquent une dépression dans le volume interne 12 du tube 10 afin de mettre en contact le tube 10 avec le mandrin 76. Ils permettent de maintenir un contact surfacique entre le tube 10 et le mandrin 76. Les canaux d'aspiration 80 affleurent dans une zone non recouverte de reliefs 86. Il y a plusieurs canaux d'aspiration 80 pour répartir la force d'aspiration sur une zone annulaire concentrique à l'axe du mandrin 76. Une fois que la zone lisse 56 du tube 10 est rentrée en contact avec l'extrémité des moyens d'aspiration 80, le tube 10 est immobilisé sur le mandrin 76 comme présenté sur la figure 7. Dit autrement l'aspiration des canaux attire le tube 10 vers le mandrin 76, les surfaces du tube 44 coopèrent avec celles du mandrin 86 pour s'engager les unes dans les autres entraînant l'immobilisation complète du tube 10 sur le mandrin 76, par centrage, tel que décrit plus haut. Le glissement est de la sorte empêcher lors du bouchonnage et/ou de la décoration. These hollow shapes 90 are distributed regularly according to their angular and radial positions. These recessed shapes 90 are adjacent and fill a circle concentric with the longitudinal axis 96 of the mandrel 76. The reliefs 86 of the mandrel 76 are adjacent and make it possible to prevent optimal sliding in rotation because at least one relief 42 of the tube 10 is wedged between two reliefs 86 of the mandrel 76. The cooperation of the reliefs 42 of the tube 10 with the reliefs 86 adjacent the mandrel 76 serve to immobilize the tube 10 on the mandrel 76. As already mentioned, the mandrel 76 may comprise means at the first end 82 of the mandrel 76. The suction means 80 are able to cooperate with a smooth zone 56 of the tube 10 which can be located on the tube head 18. The suction means 80 are consisting of suction channels 80 internal to the mandrel 76 which are flush with the first end 82. They apply a depression in the internal volume 12 of the tube 10 to bring the tube 10 into contact with the mandrel 76. They maintain a surface contact between the tube 10 and the mandrel 76. The suction channels 80 are flush in an area not covered with reliefs 86. There are several suction channels 80 for distributing the suction force on an annular zone concentric with the axis of the mandrel 76. Once the smooth zone 56 of the tube 10 is brought into contact with the end of the suction means 80, the tube 10 is immobilized on the mandrel 76 as shown in FIG. 7. In other words, the suction of the channels attracts the tube 10 towards the mandrel 76, the surfaces of the tube 44 cooperate with those of the mandrel 86 to engage one another causing the complete immobilization of the tube 10 on the mandrel 76, by centering, as described above. The slip is thus prevented during corking and / or decoration.
Les reliefs 86 du mandrin 76 sont ici des stries 95. Avantageusement, les stries 95 du mandrin 76 ont une forme complémentaire aux stries 52 présente sur le tube 10. Ces stries 95 s'étendent selon la génératrice d'une partie de cône 98 formée par au moins une partie de la première extrémité 82 du mandrin 76. Les reliefs 42 sur le tube 10 et le mandrin 76 coopèrent avantageusement selon un ajustement conique. Comme illustré, les reliefs du tube 42 et du mandrin 86 s'étendent selon des génératrices de cône de directions semblables, cela permet de faire coopérer les reliefs 42, 86 aisément. En effet, la distance permettant de caler les reliefs du tube 42 par rapport à ceux du mandrin 86 est importante. Cela permet également de diminuer la composante axiale de la force de réaction du mandrin 76 sur le tube 10, tendant à soulever le mandrin 76, lorsque l'action d'un outil entraine un couple entre le tube 10 et le mandrin 76. Dit autrement l'orientation des reliefs 42, 86 selon des génératrices de cône permet de transmettre un couple important entre le mandrin 76 et le tube 10. The reliefs 86 of the mandrel 76 are here ridges 95. Advantageously, the ridges 95 of the mandrel 76 have a shape complementary to the ridges 52 present on the tube 10. These ridges 95 extend along the generatrix of a cone portion 98 formed at least a portion of the first end 82 of the mandrel 76. The reliefs 42 on the tube 10 and the mandrel 76 advantageously cooperate in a conical fit. As illustrated, the reliefs of the tube 42 and the mandrel 86 extend along cone generatrices of similar directions, this makes it possible to cooperate the reliefs 42, 86 easily. Indeed, the distance for wedging the reliefs of the tube 42 relative to those of the mandrel 86 is important. This also makes it possible to reduce the axial component of the reaction force of the mandrel 76 on the tube 10, tending to lift the mandrel 76, when the action of a tool causes a torque between the tube 10 and the mandrel 76. the orientation of the reliefs 42, 86 along cone generators makes it possible to transmit a large torque between the mandrel 76 and the tube 10.
Selon un aspect de l'invention, on réalise le bouchonnage du tube 10 indépendamment de sa décoration. On place pour cela le mandrin 76 dans le volume interne 12 du tube 10, comme illustré dans la figure 8. Le moyen d'aspiration 80 situé à la première extrémité 82 du mandrin 76 applique une dépression dans le volume interne 12 du tube 10 afin de mettre en contact le tube 10 avec le mandrin 76 et afin de maintenir un contact surfacique entre le tube 10 et le mandrin 76. La figure 7 présente le tube 10 en contact avec le mandrin 76 une fois le contact surfacique réalisé. Le mandrin 76 tourne par rapport à un outil de bouchonnage et le bouchon applique un effort sur le tube 10. L'effort appliqué par l'outil de bouchonnage sur le tube 10 fait glisser le tube 10 en rotation par rapport au mandrin 76, pour autant que leurs reliefs respectifs ne soient pas déjà en position de blocage, sous l'effet de l'aspiration. L'outil de bouchonnage met en contact le (ou les) filet du bouchon avec le (ou les) filet 26 du tube 10. Dans une étape antérieure, postérieure ou simultanée, l'outil de bouchonnage fait tourner le bouchon par rapport au tube 10, l'un peut rester fixe ou les deux tourner en sens contraire. Les reliefs du tube 42 et du mandrin 86 coopèrent alors afin de bloquer le glissement en rotation. According to one aspect of the invention, the tube 10 is capped independently of its decoration. To do this, the mandrel 76 is placed in the internal volume 12 of the tube 10, as illustrated in FIG. 8. The suction means 80 located at the first end 82 of the mandrel 76 apply a depression in the internal volume 12 of the tube 10 so as to contacting the tube 10 with the mandrel 76 and to maintain a surface contact between the tube 10 and the mandrel 76. Figure 7 shows the tube 10 in contact with the mandrel 76 once the surface contact made. The mandrel 76 rotates relative to a plugging tool and the plug applies a force on the tube 10. The force applied by the plugging tool on the tube 10 causes the tube 10 to rotate relative to the mandrel 76, to as far as their respective reliefs are not already in the locked position, under the effect of the suction. The corking tool contacts the thread (or threads) of the stopper with the thread (s) 26 of the tube 10. In an anterior, posterior or simultaneous step, the plugging tool rotates the plug relative to the tube 10, one can remain fixed or both turn in opposite directions. The reliefs of the tube 42 and the mandrel 86 then cooperate to block the sliding in rotation.
Les surfaces 44 du tube 10 ont permis de centrer et bloquer le tube 10 par rapport au mandrin 76. Le temps nécessaire au tube 10 et au mandrin 76 pour bloquer le phénomène de glissement en rotation est réduit. Préférentiellement le mouvement du tube 10 par rapport au mandrin 76 est essentiellement rectiligne pendant tout le processus de bouchonnage. Le glissement résiduel entre le mandrin 76 et le tube 10, provenant en particulier du centrage de l'un sur l'autre, est inférieur à 5° d'angle. Une action supplémentaire peut être de serrer le bouchon par rapport au tube 10 à un couple donné, éventuellement en utilisant un couple-mètre ou une clé dynamométrique. Cette action peut être réalisée par les mêmes actionneurs à la suite de l'action où l'on fait tourner le bouchon par rapport au tube 10. Alternativement, ces actions peuvent être séparées par une pause ou même réalisées par des actionneurs différents. Selon un aspect de l'invention, on réalise la décoration du tube 10 indépendamment de son bouchonnage. La surface externe 16 du tube 10, préférentiellement de la jupe 30 peut être décorée dans le processus de décoration suivant. On place le mandrin 76 dans le volume interne 12 du tube 10. Le moyen d'aspiration 80 situé à la première extrémité 82 du mandrin 76 applique une dépression dans le volume interne 12 du tube 10 afin de mettre en contact le tube 10 avec le mandrin 76 et afin de maintenir un contact surfacique entre le tube 10 et le mandrin 76. L'outil de décoration tourne par rapport au tube 10 et applique un effort sur le tube 10. L'effort appliqué par l'outil de décoration sur le tube 10 fait glisser le tube 10 en rotation par rapport au mandrin 76, pour autant que leurs reliefs respectifs ne soient pas déjà en position de blocage, sous l'effet de l'aspiration. La décoration est faite, par exemple, par impression par écran de soie ou par marquage à chaud. Le décor est développé sur la surface externe 16 du tube 10, préférentiellement, sur la surface de la jupe 30. L'outil faisant le tour du tube 10, l'outil ou le tube 10 peut rester fixe. L'outil de décoration étale et imprime le décor sur la surface externe 16 du tube 10. La décoration peut être faite alternativement par sérigraphie. Le décor est appliqué par un cylindre en contact extérieur avec le tube 10 qui dépose l'encre sur la surface externe 16 du tube 10. Une décoration de tube 10 peut nécessiter l'application successive de plusieurs de ces procédés. Les reliefs du tube 42 et du mandrin 86 coopèrent alors afin de bloquer le glissement en rotation. The surfaces 44 of the tube 10 have made it possible to center and block the tube 10 with respect to the mandrel 76. The time required for the tube 10 and the mandrel 76 to block the phenomenon of sliding in rotation is reduced. Preferably, the movement of the tube 10 with respect to the mandrel 76 is essentially rectilinear throughout the corking process. The residual slip between the mandrel 76 and the tube 10, resulting in particular from the centering of one on the other, is less than 5 ° angle. An additional action may be to tighten the plug relative to the tube 10 to a given torque, possibly using a torque meter or a torque wrench. This action can be performed by the same actuators following the action where the cap is rotated relative to the tube 10. Alternatively, these actions can be separated by a pause or even performed by different actuators. According to one aspect of the invention, the decoration of the tube 10 is carried out independently of its corking. The outer surface 16 of the tube 10, preferably of the skirt 30 may be decorated in the following decoration process. The mandrel 76 is placed in the internal volume 12 of the tube 10. The suction means 80 located at the first end 82 of the mandrel 76 applies a depression in the internal volume 12 of the tube 10 in order to bring the tube 10 into contact with the mandrel 76 and to maintain a surface contact between the tube 10 and the mandrel 76. The decoration tool rotates relative to the tube 10 and applies a force on the tube 10. The force applied by the decoration tool on the tube 10 slides the tube 10 in rotation relative to the mandrel 76, provided that their respective reliefs are not already in the locking position, under the effect of suction. The decoration is made, for example, by silk screen printing or hot stamping. The decoration is developed on the outer surface 16 of the tube 10, preferably on the surface of the skirt 30. The tool around the tube 10, the tool or the tube 10 can remain fixed. The decoration tool spreads and prints the decoration on the outer surface 16 of the tube 10. The decoration can be made alternatively by screen printing. The decoration is applied by a cylinder in external contact with the tube 10 which deposits the ink on the outer surface 16 of the tube 10. A tube decoration 10 may require the successive application of several of these methods. The reliefs of the tube 42 and the mandrel 86 then cooperate to block the sliding in rotation.
Les surfaces 44 du tube 10 ont permis de centrer et bloquer le tube 10 par rapport au mandrin 76. Le temps nécessaire au tube 10 et au mandrin 76 pour bloquer le phénomène de glissement en rotation est réduit. Préférentiellement le mouvement du tube 10 par rapport au mandrin 76 est essentiellement rectiligne pendant tout le processus de décoration. Le glissement résiduel entre le mandrin 76 et le tube 10, provenant en particulier du centrage de l'un sur l'autre, est inférieur à 5° d'angle. Préférentiellement, le tube 10 est décoré puis bouchonné directement à la suite de sa fabrication. L'effort à transmettre par chaque relief 42 du tube 10 est relativement faible comparé à l'effort de décoration ou à l'effort de bouchonnage. The surfaces 44 of the tube 10 made it possible to center and block the tube 10 with respect to the mandrel 76. The time required for the tube 10 and the mandrel 76 to block the sliding phenomenon by rotation is reduced. Preferably the movement of the tube 10 with respect to the mandrel 76 is essentially rectilinear throughout the decoration process. The residual slip between the mandrel 76 and the tube 10, resulting in particular from the centering of one on the other, is less than 5 ° angle. Preferably, the tube 10 is decorated and corked directly after its manufacture. The effort to be transmitted by each relief 42 of the tube 10 is relatively small compared to the effort of decoration or the corking effort.
Le tube 10 conforme à l'invention pourra comporter soit un bouchon soit un décor, préférentiellement les deux. Dans ce dernier cas, le mandrin 76 utilisé lors du bouchonnage et le mandrin 76 utilisé lors de la décoration peuvent être identiques. Avantageusement, ils peuvent constituer une unique pièce utilisée successivement pour le procédé de décoration et le procédé de bouchonnage. Le glissement en rotation qui se produit dans l'étape de bouchonnage est donc quasiment nul. Le maintien en position du tube 10 par rapport au mandrin 76 effectué sur la face interne du tube 10 pendant le bouchonnage limite le risque de dégâts effectué sur le décor. The tube 10 according to the invention may comprise either a plug or a decor, preferably both. In the latter case, the mandrel 76 used during capping and the mandrel 76 used during the decoration may be identical. Advantageously, they can constitute a single piece used successively for the decoration process and the corking process. The rotational slip that occurs in the corking step is virtually nil. Keeping the tube 10 in position relative to the mandrel 76 made on the inner face of the tube 10 during capping limits the risk of damage done to the decor.

Claims

Revendications claims
1 : Tube (10) pour produit à consistance liquide, pâteuse ou sous forme de gel comprenant une tête de tube (18), une jupe (30) présentant une extrémité proximale (32) liée à la tête de tube (18) et une extrémité distale (34) ouverte, la jupe (30) et la tête de tube (18) formant un volume interne (12) adapté pour contenir le produit, le tube (10) étant configuré pour être assemblé avec au moins un des éléments parmi un bouchon et un décor lorsqu'il coopère avec un mandrin (76), des reliefs (42) étant ménagés sur une paroi du volume interne (12), les reliefs (42) étant configurés pour limiter un glissement en rotation du tube (10) par rapport au mandrin (76). 2 : Tube selon la revendication 1 dans lequel les reliefs (42) comportent des surfaces (44) configurées pour permettre un centrage par rapport au mandrin (76). 1: Tube (10) for liquid, pasty or gel-like product comprising a tube head (18), a skirt (30) having a proximal end (32) connected to the tube head (18) and a distal end (34) open, the skirt (30) and the tube head (18) forming an internal volume (12) adapted to contain the product, the tube (10) being configured to be assembled with at least one of a stopper and a decoration when it cooperates with a mandrel (76), reliefs (42) being formed on a wall of the internal volume (12), the reliefs (42) being configured to limit a rotational sliding of the tube (10); ) relative to the mandrel (76). 2: Tube according to claim 1 wherein the reliefs (42) comprise surfaces (44) configured to allow centering relative to the mandrel (76).
3 : Tube selon l'une quelconque des revendications précédentes dans lequel les reliefs (42) définissent entre chacun d'eux des formes en creux (46) rétrécies en allant d'une extrémité distale (48) à une base desdits reliefs (50). 4 : Tube selon la revendication précédente dans lequel les reliefs (42) sont configurés de façon à ce que les formes en creux (46) soient réparties régulièrement selon leurs positions angulaires et/ou radiales. 3: Tube according to any one of the preceding claims wherein the reliefs (42) define between each of them recessed shapes (46) narrowed from a distal end (48) to a base of said reliefs (50) . 4: Tube according to the preceding claim wherein the reliefs (42) are configured so that the recessed shapes (46) are evenly distributed in their angular and / or radial positions.
5 : Tube selon l'une quelconque des revendications 3 ou 4 dans lequel les reliefs (42) sont configurés de façon à ce que les formes en creux (46) soient adjacentes et/ou remplissent au moins un cercle concentrique à un axe longitudinal (14) du tube (10). 5: Tube according to any one of claims 3 or 4 wherein the reliefs (42) are configured so that the recessed shapes (46) are adjacent and / or fill at least one circle concentric to a longitudinal axis ( 14) of the tube (10).
6 : Tube selon l'une quelconque des revendications précédentes dans lequel les reliefs (42) sont configurés de façon à ce que les formes en creux (46) s'étendent parallèlement à la jupe (30), radialement et/ou selon des génératrices d'une partie conique (60, 62, 64) formée par au moins une partie de la tête de tube (18). 6: Tube according to any one of the preceding claims wherein the reliefs (42) are configured so that the recessed shapes (46) extend parallel to the skirt (30), radially and / or according to generatrices a conical portion (60, 62, 64) formed by at least a portion of the tube head (18).
7 : Tube selon l'une quelconque des revendications précédentes dans lequel les reliefs (42) sont des stries (52). 7: Tube according to any one of the preceding claims wherein the reliefs (42) are streaks (52).
8 : Tube selon l'une quelconque des revendications précédentes dans lequel la tête de tube (18) et la jupe (30) sont deux parties distinctes jointes au niveau d'une zone d'interface (38), lesdits reliefs (42) étant localisés au moins au niveau de la ladite zone d'interface (38). 9 : Tube selon la revendication 8 dans lequel la zone d'interface (38) comprend une zone de recouvrement (40) entre la jupe (30) et la tête de tube (18). 8: Tube according to any preceding claim wherein the tube head (18) and the skirt (30) are two separate parts joined at an interface area (38), said reliefs (42) being located at least at said interface area (38). 9: The tube of claim 8 wherein the interface area (38) comprises a lap region (40) between the skirt (30) and the tube head (18).
10 : Tête de tube pour tube selon l'une quelconque des revendications précédentes dans lequel les reliefs (42) sont ménagés sur la tête de tube (18). 10: tube tube head according to any one of the preceding claims wherein the reliefs (42) are formed on the tube head (18).
11 : Jupe pour tube selon l'une quelconque des revendications 1 à 9 dans lequel les reliefs (42) sont ménagés sur la jupe (30). 11: Tube skirt according to any one of claims 1 to 9 wherein the reliefs (42) are formed on the skirt (30).
12 : Ensemble d'un tube selon l'une quelconque des revendications 1 à 9 et d'au moins un desdits éléments parmi un bouchon et un décor. 12: assembly of a tube according to any one of claims 1 to 9 and at least one of said elements among a plug and a decor.
13 : Procédé de fabrication d'un tube selon l'une quelconque des revendications 1 à 9, procédé dans lequel les reliefs (42) sont fabriqués lors d'une étape de fabrication de la jupe (30) et/ou de la tête de tube (18). 13: A method of manufacturing a tube according to any one of claims 1 to 9, wherein the reliefs (42) are manufactured during a manufacturing step of the skirt (30) and / or the head of tube (18).
14 : Procédé de bouchonnage d'un tube selon l'une quelconque des revendications 1 à 9, procédé dans lequel le tube (10) coopère avec un mandrin (76), le mandrin (76) comprenant des reliefs (86) aptes à coopérer avec les reliefs (42) du tube (10). 14: Process for capping a tube according to any one of claims 1 to 9, wherein the tube (10) cooperates with a mandrel (76), the mandrel (76) comprising reliefs (86) able to cooperate with the reliefs (42) of the tube (10).
15 : Procédé de décoration d'un tube selon l'une quelconque des revendications 1 à 9, procédé dans lequel le tube (10) coopère avec un mandrin (76), le mandrin (76) comprenant des reliefs (86) aptes à coopérer avec les reliefs (42) du tube (10). 15: A method of decorating a tube according to any one of claims 1 to 9, wherein the tube (10) cooperates with a mandrel (76), the mandrel (76) comprising reliefs (86) able to cooperate with the reliefs (42) of the tube (10).
EP14706300.2A 2013-02-21 2014-02-21 Tube for a product having a liquid, pasty or gel-like consistency, in particular for cosmetic products Withdrawn EP2958457A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1351528A FR3002122B1 (en) 2013-02-21 2013-02-21 TUBE, FOR A LIQUID, PULP OR GEL-FREE PRODUCT, IN PARTICULAR FOR COSMETIC PRODUCTS
PCT/EP2014/053484 WO2014128282A1 (en) 2013-02-21 2014-02-21 Tube for a product having a liquid, pasty or gel-like consistency, in particular for cosmetic products

Publications (1)

Publication Number Publication Date
EP2958457A1 true EP2958457A1 (en) 2015-12-30

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EP14706300.2A Withdrawn EP2958457A1 (en) 2013-02-21 2014-02-21 Tube for a product having a liquid, pasty or gel-like consistency, in particular for cosmetic products

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EP (1) EP2958457A1 (en)
FR (1) FR3002122B1 (en)
WO (1) WO2014128282A1 (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1486337A1 (en) * 1962-03-15 1969-06-04 Flax V Container made of thermoplastic material
EP0410913A1 (en) * 1989-07-28 1991-01-30 Cebal S.A. Cap closure and plastics necked container assembly, and its use

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1413098A (en) * 1964-05-08 1965-10-08 Tools for the definitive joining of a tubular element and a part (forming end piece, base or other) in heat-weldable material
FR1422174A (en) * 1964-10-22 1965-12-24 End piece to be secured by friction with a tubular element to form a tubular container and securing tools
CH493328A (en) * 1969-06-04 1970-07-15 Continental Plastic Ag Process for manufacturing a thermoplastic tube, tooling for implementing this process and tube obtained by this process

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1486337A1 (en) * 1962-03-15 1969-06-04 Flax V Container made of thermoplastic material
EP0410913A1 (en) * 1989-07-28 1991-01-30 Cebal S.A. Cap closure and plastics necked container assembly, and its use

Also Published As

Publication number Publication date
FR3002122A1 (en) 2014-08-22
WO2014128282A1 (en) 2014-08-28
FR3002122B1 (en) 2015-08-07

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