WO2018234504A1 - Dispositif pour le moulage par injection-soufflage de corps creux à composants multiples - Google Patents

Dispositif pour le moulage par injection-soufflage de corps creux à composants multiples Download PDF

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Publication number
WO2018234504A1
WO2018234504A1 PCT/EP2018/066664 EP2018066664W WO2018234504A1 WO 2018234504 A1 WO2018234504 A1 WO 2018234504A1 EP 2018066664 W EP2018066664 W EP 2018066664W WO 2018234504 A1 WO2018234504 A1 WO 2018234504A1
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WO
WIPO (PCT)
Prior art keywords
mold cavity
plastic component
plastic
mold
central part
Prior art date
Application number
PCT/EP2018/066664
Other languages
German (de)
English (en)
Inventor
Rainer Armbruster
Original Assignee
Foboha (Germany) Gmbh
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 Foboha (Germany) Gmbh filed Critical Foboha (Germany) Gmbh
Publication of WO2018234504A1 publication Critical patent/WO2018234504A1/fr

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Classifications

    • 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
    • B29C45/03—Injection moulding apparatus
    • B29C45/04—Injection moulding apparatus using movable moulds or mould halves
    • B29C45/0441—Injection moulding apparatus using movable moulds or mould halves involving a rotational movement
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B11/00—Making preforms
    • B29B11/14—Making preforms characterised by structure or composition
    • 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
    • B29C45/16—Making multilayered or multicoloured articles
    • B29C45/1615—The materials being injected at different moulding stations
    • B29C45/1628—The materials being injected at different moulding stations using a mould carrier rotatable about an axis perpendicular to the opening and closing axis of the moulding stations
    • 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
    • B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B29C49/02—Combined blow-moulding and manufacture of the preform or the parison
    • B29C49/06—Injection blow-moulding
    • B29C49/061—Injection blow-moulding with parison holding means displaceable between injection and blow stations
    • B29C49/062—Injection blow-moulding with parison holding means displaceable between injection and blow stations following an arcuate path, e.g. rotary or oscillating-type
    • B29C49/063—Injection blow-moulding with parison holding means displaceable between injection and blow stations following an arcuate path, e.g. rotary or oscillating-type with the parison axis held in the plane of rotation
    • 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
    • B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B29C49/071—Preforms or parisons characterised by their configuration, e.g. geometry, dimensions or physical properties
    • 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
    • B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B29C49/28—Blow-moulding apparatus
    • B29C49/30—Blow-moulding apparatus having movable moulds or mould parts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B11/00—Making preforms
    • B29B11/06—Making preforms by moulding the material
    • B29B11/08—Injection moulding
    • 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
    • B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B29C49/02—Combined blow-moulding and manufacture of the preform or the parison
    • B29C2049/023—Combined blow-moulding and manufacture of the preform or the parison using inherent heat of the preform, i.e. 1 step blow moulding
    • 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
    • B29C2949/00—Indexing scheme relating to blow-moulding
    • B29C2949/07—Preforms or parisons characterised by their configuration
    • B29C2949/0715—Preforms or parisons characterised by their configuration the preform having one end closed
    • 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
    • B29C2949/00—Indexing scheme relating to blow-moulding
    • B29C2949/07—Preforms or parisons characterised by their configuration
    • B29C2949/074—Preforms or parisons characterised by their configuration having ribs or protrusions
    • B29C2949/0744—Preforms or parisons characterised by their configuration having ribs or protrusions at neck portion
    • 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
    • B29C2949/00—Indexing scheme relating to blow-moulding
    • B29C2949/07—Preforms or parisons characterised by their configuration
    • B29C2949/075—Preforms or parisons characterised by their configuration having at least one internal separating wall
    • B29C2949/0751—Preforms or parisons characterised by their configuration having at least one internal separating wall at neck portion
    • 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
    • B29C2949/00—Indexing scheme relating to blow-moulding
    • B29C2949/07—Preforms or parisons characterised by their configuration
    • B29C2949/076—Preforms or parisons characterised by their configuration characterised by the shape
    • B29C2949/0761—Preforms or parisons characterised by their configuration characterised by the shape characterised by overall the shape
    • B29C2949/0762—Conical
    • 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
    • B29C2949/00—Indexing scheme relating to blow-moulding
    • B29C2949/07—Preforms or parisons characterised by their configuration
    • B29C2949/076—Preforms or parisons characterised by their configuration characterised by the shape
    • B29C2949/0768—Preforms or parisons characterised by their configuration characterised by the shape characterised by the shape of specific parts of preform
    • B29C2949/077—Preforms or parisons characterised by their configuration characterised by the shape characterised by the shape of specific parts of preform characterised by the neck
    • B29C2949/0771—Wide-mouth
    • 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
    • B29C2949/00—Indexing scheme relating to blow-moulding
    • B29C2949/07—Preforms or parisons characterised by their configuration
    • B29C2949/076—Preforms or parisons characterised by their configuration characterised by the shape
    • B29C2949/0768—Preforms or parisons characterised by their configuration characterised by the shape characterised by the shape of specific parts of preform
    • B29C2949/077—Preforms or parisons characterised by their configuration characterised by the shape characterised by the shape of specific parts of preform characterised by the neck
    • B29C2949/0772—Closure retaining means
    • B29C2949/0773—Threads
    • 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
    • B29C2949/00—Indexing scheme relating to blow-moulding
    • B29C2949/07—Preforms or parisons characterised by their configuration
    • B29C2949/076—Preforms or parisons characterised by their configuration characterised by the shape
    • B29C2949/0768—Preforms or parisons characterised by their configuration characterised by the shape characterised by the shape of specific parts of preform
    • B29C2949/0778—Preforms or parisons characterised by their configuration characterised by the shape characterised by the shape of specific parts of preform characterised by the flange
    • 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
    • B29C2949/00—Indexing scheme relating to blow-moulding
    • B29C2949/07—Preforms or parisons characterised by their configuration
    • B29C2949/079—Auxiliary parts or inserts
    • B29C2949/08—Preforms made of several individual parts, e.g. by welding or gluing parts together
    • 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
    • B29C2949/00—Indexing scheme relating to blow-moulding
    • B29C2949/20—Preforms or parisons whereby a specific part is made of only one component, e.g. only one layer
    • 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
    • B29C2949/00—Indexing scheme relating to blow-moulding
    • B29C2949/30—Preforms or parisons made of several components
    • B29C2949/3008—Preforms or parisons made of several components at neck portion
    • 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
    • B29C2949/00—Indexing scheme relating to blow-moulding
    • B29C2949/30—Preforms or parisons made of several components
    • B29C2949/3012—Preforms or parisons made of several components at flange portion
    • 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
    • B29C2949/00—Indexing scheme relating to blow-moulding
    • B29C2949/30—Preforms or parisons made of several components
    • B29C2949/3032—Preforms or parisons made of several components having components being injected
    • 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
    • B29C2949/00—Indexing scheme relating to blow-moulding
    • B29C2949/30—Preforms or parisons made of several components
    • B29C2949/3032—Preforms or parisons made of several components having components being injected
    • B29C2949/3034—Preforms or parisons made of several components having components being injected having two or more components being injected
    • 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
    • B29C2949/00—Indexing scheme relating to blow-moulding
    • B29C2949/30—Preforms or parisons made of several components
    • B29C2949/3086—Interaction between two or more components, e.g. type of or lack of bonding
    • 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
    • B29C2949/00—Indexing scheme relating to blow-moulding
    • B29C2949/30—Preforms or parisons made of several components
    • B29C2949/3086—Interaction between two or more components, e.g. type of or lack of bonding
    • B29C2949/3088—Bonding
    • B29C2949/309—Bonding by welding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2001/00—Articles provided with screw threads
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/22—Hinges, pivots
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/56—Stoppers or lids for bottles, jars, or the like, e.g. closures
    • B29L2031/565—Stoppers or lids for bottles, jars, or the like, e.g. closures for containers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/712—Containers; Packaging elements or accessories, Packages
    • B29L2031/7158—Bottles
    • B29L2031/716—Bottles of the wide mouth type, i.e. the diameters of the bottle opening and its body are substantially identical

Definitions

  • the invention relates to a method and an apparatus for producing complex hollow bodies from a plurality of plastic components by means of injection blow molding.
  • US4427359 was 1 984 in the name of the company Sumitomo Heavy Industries, Ltd. Published. It deals with the production of hollow plastic bodies.
  • a rigid non-rotatable middle part is arranged between a fixed first and a movable second platen, which cooperates via a first and a second parting plane attached to the first and the second platen mold halves.
  • first parting plane preforms are injection molded from plastic.
  • the device is opened and the parts are moved by means of a transfer system around the non-rotatably arranged central part from the first to the second parting plane.
  • the preforms are introduced into blow molds of the second mold half and are inflated there under pressure and temperature.
  • the device has the disadvantage that the preforms strongly cool during transport from the first to the second parting plane and thus have to be heated up again before blow molding inside and outside.
  • US5090889A was 1 990 in the name of Knauer Systec Eng.
  • G mbH publishes and deals with a device for injection blow molding of plastic parts.
  • several workpieces can be pre-cast per work cycle and at the same time an equal number of pre-cast workpieces blown.
  • male and / or cast matrices and / or Blas matrices are arranged on each movable relative to a stationary support carriers and the male arranged on rotating bodies of a casting position in a blow position.
  • a disadvantage of the device is that the individual workpieces are not exposed to uniform conditions, since the process of the highly fragmented device can not really be controlled.
  • FR2596693 was published in the name of the gen Cie 1 987 and deals with a Spritzblasform with an axis rotatable center part with four sides.
  • the injection blow mold is used to produce bellows made of plastic.
  • the four sides of the rotatable middle part have cores.
  • a first and a second component are injected.
  • the intermediates on the cores are inflated.
  • DE2444465A1 was published in March 1,976 on behalf of the llikon Crop. published and is about a method for forming multilayer plastic articles from at least two thermoplastic materials.
  • a first plasticized material is injected into a mold around a mandrel.
  • the molding is transferred to at least one further injection mold, in each of the Formling is overmolded again with a plasticized by heating material.
  • the multilayer molding is transferred to a blow mold in which it is blow-molded into its final shape and then removed from the mandrel.
  • the molding is cooled before each encapsulation with a further plastic layer to a temperature far below its processing range that the application of the following layer erosion of the existing layer is prevented.
  • Another aspect is that after the application of the second layer, the mandrel with the molding is removed from the second injection mold and then both layers are heated to such a high temperature that the blow molding is feasible.
  • An object of the invention is to show a device for producing hollow bodies made of plastic, which has a more efficient construction compared to the prior art. This object is achieved by the invention defined in the claims.
  • the device is used for injection molding and blow molding of parts, in particular hollow bodies of a plurality of plastic components.
  • the device has a central part rotatable about an axis of rotation, as well as a first, a second and a third mold half, which are arranged so as to be movable relative to the central part in a first or a second direction.
  • the middle part is arranged at least between two mold halves has pairwise arranged side surfaces, which are arranged rotationally symmetrical to each other with respect to the axis of rotation of the rotatable central part.
  • the side surfaces in the region of a first, a second, and a third parting plane cooperate with correspondingly arranged outer surfaces of the first, second and third mold halves to form at least a first, a second, and a third mold cavity.
  • the at least one first mold cavity serves to form a first plastic component by injecting a plasticized first plastic into the first mold cavity.
  • the at least one second mold cavity serves to form a second plastic component by injecting a plasticized second plastic into the at least one second mold cavity.
  • the at least one third mold cavity serves to deform a first and / or second plastic component arranged therein by blow molding.
  • the injection of the first and the second plastic component, and the blow molding of the first and / or the second plastic component is advantageously carried out substantially simultaneously in the region of different side surfaces of the rotatable central part.
  • the at least one third mold cavity can be arranged offset relative to the at least one second mold cavity with respect to the direction of rotation of the middle part by (a) 90 ° or (b) 1 80 °.
  • the at least one second mold cavity is in this case with respect to the first mold cavity with respect in the direction of rotation of the central part with advantage by (a) 1 80 ° or (b) offset 90 °.
  • the first mold half can be arranged fixed.
  • the middle part and the second mold half are arranged to be movable relative to the first mold half in the first direction.
  • the third mold half is then, with respect to the axis of rotation of the central part, with respect to the first and the second mold half, offset by 90 °, advantageously arranged at 270 ° with respect to the direction of rotation of the central part.
  • Other embodiments, e.g. the second, or the third mold half or the rotatable central part are translationally fixed, are possible.
  • the second mold cavity is formed such that the second plastic component adjoins the first plastic component along an annular peripheral connecting region. In the injection molding of the second plastic component, this is then operatively connected along this area with the first.
  • the advantages are explained in more detail below.
  • the second mold cavity can also be designed so that the first and the second plastic component are operatively connected via a hinge after production.
  • the at least one first and / or second mold cavity can comprise the negative of a shoulder, which is transferred during injection molding as a positive to the plastic component produced in the corresponding mold cavity.
  • This shoulder has a substantially radial course with respect to the opening direction of the mold cavity.
  • the shoulder can at blow molding in the third mold cavity at least partially as a stop, or support surface for by the blow molding used formed plastic component. Good results can be achieved if the shoulder is arranged adjacent to, or not far from, the annular peripheral connecting region.
  • the connection area can serve as a fixed point for the formed plastic component.
  • the first and / or the second mold cavity may have the negative of at least one thread which is transferred during injection molding as a positive on the first and / or the second plastic component.
  • the negative of at least one thread is my advantage on a sleeve which is attached to the rotatable middle title arranged.
  • the sleeve may be rotatable about its longitudinal axis, wherein the longitudinal axis is substantially perpendicular to a side surface of the central part associated therewith.
  • the at least one sleeve and / or other parts in the rotatable central part can be driven via a gear, which is part of the rotatable central part. If required, a gear can be provided per side surface of the rotatable central part, or for sleeves arranged therein.
  • the transmission can include normal gears, as well as racks. Hydraulic and / or electrical actuators are also possible alternatively or in addition.
  • the transmission can be driven via a clutch by an external drive from outside the rotatable middle part. The external drive is advantageously operatively connected via the clutch with the transmission as soon as the rotatable middle part is stationary.
  • the coupling may comprise a gear which is arranged in a surface of the rotatable central part, preferably in a side surface adjacent to the end face of the rotatable central part.
  • a processing station may be arranged which serves to subject the first intermediate product to a further processing step, e.g. Labeling or heating of a plastic component, etc.
  • the first plastic component is injected into the first mold cavity.
  • the device, and thus the first mold cavity is opened by relative displacement of the mold halves relative to the rotatable central part.
  • the opening is done so far that the rotatable middle part can be rotated freely about its axis of rotation.
  • the first plastic component adheres to the rotatable middle part. This is rotated so far that the first plastic component is introduced when closing the device in the second mold cavity.
  • the second plastic component is injected in liquid form into the second mold cavity, so that it at least partially Wirkverbindet with the first plastic component.
  • the active compound can be designed differently.
  • the device is opened again and the first and the second plastic component operatively connected thereto are rotated by rotating the rotatable central part into the third Mold cavity introduced.
  • the first and / or the second plastic components are formed by blow molding. If necessary, the first and / or the second plastic component can be heated prior to introduction or simultaneously by a heater, so that the blow molding is easier to go.
  • the device is opened again and the formed part consisting of the first and the second plastic component operatively connected thereto is removed from the injection molding apparatus. Before removing the rotatable middle part can be rotated again about its axis of rotation.
  • the rotatable Mitteilteil four side surfaces. The angle of rotation is in each case 90 ° between the individual steps.
  • Fig. 1 an inventive device
  • Fig. 2 A part with a first and a second plastic components before
  • Fig. 3 The product according to Figure 2 after blow molding.
  • FIG. 1 shows an injection blow molding device (device) 1 in the open position for injection molding and blow molding of parts, in particular hollow bodies 20 made of a plurality of plastic components as shown by way of example in FIG. 2 and FIG.
  • the device 1 comprises a central part 3 rotatable about a rotation axis 2.
  • the middle part 3 has four regularly distributed around the rotation axis 2 arranged side surfaces 4.
  • a first, a second and a third mold half 5, 6, 7 are arranged so as to be movable relative to the central part 3 in a first (x-direction) or a second direction (y-direction), so that the device 1 can be opened and closed , When opening the mold half 5, 6, 7 so far away from the central part 3, that it can be freely rotated about the rotation axis 2.
  • the device 1 is normally arranged in an injection molding machine, which is not shown here.
  • the injection molding machine has a fixed first and a second machine plate which is movable with respect to this in the first direction (both also not shown).
  • one of the mold halves 5, 6, 7 of the device is fastened to the stationary machine plate and a second to the movable machine plate.
  • a third mold half 7 is laterally arranged via a further holding device so that it can also cooperate with the arranged between the two machine plates central part for the production of parts.
  • the holding device for the third mold half 7 may be part of a holding device for the rotatable central part 3 or be operatively connected to this.
  • the holding device for the third mold half 7 and for the rotatable middle part 3 are not shown in detail.
  • the holding device for the rotatable middle part 3 can for Holder, or recording of the above-mentioned external drive serve, which is also not shown in detail.
  • the middle part 3 between a first mold half 5 and a second mold half 6 is arranged. It has pairs of opposing side surfaces 4, which are arranged rotationally symmetrical to each other of the axis of rotation 2 of the rotatable central part 3.
  • the device 1 is shown in an open position along a first, a second and a third parting plane 8, 9, 10.
  • the side surfaces 4 in the region of the parting planes 8, 9, 1 0 associated with them outer surfaces 1 1, 1 2, 1 3 of the first, the second and the third mold half 5, 6, 7 to form at least a first, a second and a third mold cavity 1 4, 1 5, 1 6 together.
  • the at least one first mold cavity 1 4 is used to form a first plastic component 2 1 of a part 20, as exemplified in Figures 2 and 3, by injecting a plasticized first plastic into the first mold cavity 1 4.
  • the at least one second mold cavity 1 fifth serves to form a second plastic component 22 by injecting a plasticized second plastic in the at least one second mold cavity 1 5.
  • the at least one third mold cavity 1 6 is used for forming therein arranged first and / or disposed therein second plastic component 21, 22 by blow molding.
  • the third mold cavity 1 6 may be designed in several parts, so that it can be opened laterally for removal of undercutting parts as needed.
  • the injection of the first and the second plastic component 21, 22, as well as the blow molding of the first and / or the second plastic component 21, 22 is advantageously carried out substantially simultaneously in the area of the circumferentially distributed side surfaces 4 of the rotatable central part. 3
  • the at least one first and the at least one second mold cavity 1 4, 1 5 in the region of the first and the second mold half 5, 6 are arranged.
  • the direction of rotation is in the plan view in a clockwise direction about the axis of rotation 2, which is arranged here in the z-direction.
  • the third mold cavity 1 6 is arranged laterally with respect to the axis of rotation 2 at an angle of 270 ° to the first mold cavity 1 4, respectively 90 ° to the second mold cavity 1 5.
  • the first mold half 5 may be arranged fixed.
  • the middle part 3 and the second mold half 6 are arranged to be movable relative to the first mold half 5 in the first direction (x-direction).
  • the third mold half 7 is then, with respect to the axis of rotation 2 of the central part 3, advantageously arranged at 270 ° relative to the direction of rotation of the central part.
  • Other embodiments in which, for example, the second or the third mold half 6, 7 or the rotatable middle part 3 are translationally fixed, are possible in principle.
  • the parts 20 shown in FIGS. 2 and 3 are, in the case of the inverse reference point or coordinate system, in principle partial indices of the first, the second and the third mold cavities 1 4, 1 5, 1 6, so that the Geometry of the parts 20 can make conclusions about the design of the mold cavities.
  • the second mold cavity 1 5 (see FIG. 1) is designed such that the second plastic component 2 1 adjoins the first plastic component 21 along an annular circumferential connecting region 23. When injection molding the second plastic component 22, this is then operatively connected along the connecting portion 23 with the first plastic component 21.
  • the at least one first and / or second mold cavity 1 4, 1 5 may also be configured such that the first and / or the second plastic component 2 1, 22 have a shoulder 24 after production.
  • This shoulder has a substantially radial profile with respect to the opening direction (or the removal direction) of the corresponding mold cavity.
  • the shoulder 24 can then serve, as can be seen in FIG. 3, during blow molding in the third mold cavity 1 6 as an abutment or support surface for the plastic component 22 formed by the blow molding. Good results can be achieved if the shoulder 24 is arranged adjacent to, or not far from, the annular peripheral connection region 23.
  • the connection region 23 can serve as a fixed point for the blow molded plastic component.
  • the first and / or the second mold cavity 1 4, 1 may also have the negative of at least one thread 25, which in injection molding as a positive on the first and / or the second plastic component is transmitted.
  • the negative of at least one thread is advantageously on a sleeve 1 7 which is fixed in the region of at least one corresponding mold cavity on the rotatable central part 3, respectively.
  • the sleeve 1 7 may be arranged rotatably about its longitudinal axis in order to remove the thread 25 as free of force as possible, wherein the longitudinal axis is substantially perpendicular to an associated side surface 4 of the central part 3.
  • the cavities 1 8 arranged on the middle part which form the mold cavities 1 4, 1 5, 1 6 from the middle part side, are essentially identical on all four side faces 4 of the middle part 3.
  • the at least one sleeve 17 and / or the other parts in the rotatable middle part 3 can be driven via one or more gear 28, which is part of the rotatable middle part 3.
  • each a gear 28 are provided.
  • the transmission 28 may include normal gears and / or racks and / or levers. Hydraulic and / or electrical actuators are also possible alternatively or in addition.
  • the transmission 28 can be driven via a clutch 26 by an external drive (not shown in detail) from outside (bottom and / or top) of the rotatable central part 3.
  • the external drive is advantageously operatively connected via the clutch 26 to the transmission 28 as soon as the rotatable middle part 4 is stationary for a further processing step and the device 1 is closed, or is already closed.
  • the coupling 26 can, as shown in Figure 1, per side surface 4, each a gear comprise, which is arranged in a surface of the rotatable central part 3, preferably an end face of the rotatable central part 3 adjacent to a side surface 4.
  • a further mold half and / or a processing station may be arranged, which serves to subject the first intermediate product to a further processing step, e.g. Labeling, heating, cooling of a plastic component, etc.
  • the first plastic component 21 is injected into the first mold cavity 14. Subsequently, the device 1 is opened by relative displacement of the first and second mold halves 5, 6 in the first direction (x-direction) and the third mold half 7 in the second direction (y-direction) with respect to the rotatable central part 4. The opening takes place so far that the rotatable central part 3 can be freely rotated about its axis of rotation 2. In this case, the first plastic component 21 in the cavities 1 8 adhere to the rotatable central part 3. This is rotated so far that the first plastic component 2 1 when closing the device 1 in the second mold cavity 1 5 between the rotatable middle part 3 and the second mold half 6 is introduced.
  • the second plastic component 22 is injected with the second plastic component 22 in the form of liquid plastic, so that it at least partially interacts effectively with the first plastic component 21.
  • the active compound can be designed differently. This is done with advantage However, along an annular peripheral connecting portion 23, along which the two plastic components 21, 22 adjoin.
  • the device 1 is opened again and the first and the operatively connected second plastic component 21, 22 introduced by rotating the rotatable central part 3 in the third mold cavity 1 6.
  • the first and / or the second plastic components 2 1, 22 are formed by blow molding. If necessary, the first and / or the second plastic component 2 1, 22 may be heated prior to introduction or simultaneously with the introduction by a heater (not shown), so that the blow molding is easier to go.
  • the device 1 is opened again and the finished part 20 consisting of the first and the operatively connected second plastic component 21, 22 removed from the device 1. Before removing, the rotatable central part 3 can be rotated again about its axis of rotation 2.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • Geometry (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)

Abstract

L'invention concerne un dispositif (1) et un procédé pour le moulage par injection et le moulage par soufflage de pièces, en particulier de corps creux (20) à partir de plusieurs composants en matériau synthétique. Le dispositif présente une pièce centrale (3) rotative autour d'un axe de rotation (2) ainsi qu'une première, une deuxième et une troisième moitié de moule (5, 6, 7), qui sont disposées de manière mobile dans une première ou, selon le cas, dans une deuxième direction (x, y) par rapport à la pièce centrale (3). La pièce centrale (3) présente des surfaces latérales (4) associées par paires les unes aux autres, qui sont disposées avec une symétrie de rotation l'une par rapport à l'autre par rapport à l'axe de rotation (2) de la pièce centrale (3) rotative et qui interagissent dans une position de fermeture du dispositif (1) au niveau d'un premier, d'un deuxième ainsi que d'un troisième plan de séparation (8, 9, 10) avec des surfaces externes (11, 12, 13) agencées de manière correspondante de la première, de la deuxième et de la troisième moitié de moule (5, 6, 7) pour former au moins un premier, un deuxième ainsi qu'un troisième espace creux de moulage (14, 15, 16). Au moins un premier espace creux de moulage (14) sert à la formation d'un premier composant en matériau synthétique (21). Au moins un deuxième espace creux de moulage (14) sert à la formation d'un deuxième composant en matériau synthétique (21). Au moins un troisième espace creux de moulage (14) sert au façonnage d'un premier et/ou d'un deuxième composant en matériau synthétique (21) disposé en son sein par moulage par soufflage.
PCT/EP2018/066664 2017-06-21 2018-06-21 Dispositif pour le moulage par injection-soufflage de corps creux à composants multiples WO2018234504A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH00811/17 2017-06-21
CH00811/17A CH713907A2 (de) 2017-06-21 2017-06-21 Vorrichtung zum Spritzgiessen und Blasformen von Teilen aus mehreren Kunststoffkomponenten.

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102022116243A1 (de) 2022-06-29 2024-01-04 Foboha (Germany) Gmbh Vorrichtung und verfahren zum spritzgiessen von komplexen kunststoffprodukten

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2444465A1 (de) 1974-09-10 1976-03-25 Ilikon Corp Verfahren zur formung von mehrschichtigen kunststoffgegenstaenden
US4427359A (en) 1981-07-14 1984-01-24 Sumitomo Heavy Industries, Ltd. Injection stretch-blow molding machine
FR2596693A1 (fr) 1986-04-04 1987-10-09 Ouest Cie Procede et dispositif d'injection-soufflage de corps creux a deux composants thermoplastiques et corps creux ainsi obtenus
US5090889A (en) 1988-04-06 1992-02-25 Systec Engineering Knauer Gmbh & Co. Kg Injection blow tool for synthetic plastic injection casting machines
US5662245A (en) * 1992-12-18 1997-09-02 Schmalbach-Lubeca Ag Container with integrally molded closure/tamper indicator
US6428737B1 (en) * 1995-07-07 2002-08-06 Continental Pet Technologies, Inc. Sleeve molding
EP1671776A1 (fr) * 1999-04-21 2006-06-21 Advanced Plastics Technologies, Ltd Dispositif et procédé de moulage de produits stratifiés en polyester et materiau barrière
DE102011121085A1 (de) * 2011-02-04 2012-09-13 Thomas Meister Gewindekernausschraubvorrichtung
WO2017072287A1 (fr) * 2015-10-29 2017-05-04 Foboha (Germany) Gmbh Dispositif pour fabriquer un produit par moulage par injection et procédé

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2444465A1 (de) 1974-09-10 1976-03-25 Ilikon Corp Verfahren zur formung von mehrschichtigen kunststoffgegenstaenden
US4427359A (en) 1981-07-14 1984-01-24 Sumitomo Heavy Industries, Ltd. Injection stretch-blow molding machine
FR2596693A1 (fr) 1986-04-04 1987-10-09 Ouest Cie Procede et dispositif d'injection-soufflage de corps creux a deux composants thermoplastiques et corps creux ainsi obtenus
US5090889A (en) 1988-04-06 1992-02-25 Systec Engineering Knauer Gmbh & Co. Kg Injection blow tool for synthetic plastic injection casting machines
US5662245A (en) * 1992-12-18 1997-09-02 Schmalbach-Lubeca Ag Container with integrally molded closure/tamper indicator
US6428737B1 (en) * 1995-07-07 2002-08-06 Continental Pet Technologies, Inc. Sleeve molding
EP1671776A1 (fr) * 1999-04-21 2006-06-21 Advanced Plastics Technologies, Ltd Dispositif et procédé de moulage de produits stratifiés en polyester et materiau barrière
DE102011121085A1 (de) * 2011-02-04 2012-09-13 Thomas Meister Gewindekernausschraubvorrichtung
WO2017072287A1 (fr) * 2015-10-29 2017-05-04 Foboha (Germany) Gmbh Dispositif pour fabriquer un produit par moulage par injection et procédé

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102022116243A1 (de) 2022-06-29 2024-01-04 Foboha (Germany) Gmbh Vorrichtung und verfahren zum spritzgiessen von komplexen kunststoffprodukten
WO2024003113A1 (fr) 2022-06-29 2024-01-04 Foboha (Germany) Gmbh Dispositif et méthode de moulage par injection de produits plastiques complexes

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