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WO2018134429A1 - Procédé pour produire des contenants en matière plastique comprenant des zones de fond mobiles les unes par rapport aux autres, et dispositif de formage correspondant - Google Patents

Procédé pour produire des contenants en matière plastique comprenant des zones de fond mobiles les unes par rapport aux autres, et dispositif de formage correspondant Download PDF

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Publication number
WO2018134429A1
WO2018134429A1 PCT/EP2018/051532 EP2018051532W WO2018134429A1 WO 2018134429 A1 WO2018134429 A1 WO 2018134429A1 EP 2018051532 W EP2018051532 W EP 2018051532W WO 2018134429 A1 WO2018134429 A1 WO 2018134429A1
Authority
WO
WIPO (PCT)
Prior art keywords
region
bottom part
plastic
blow mold
expansion
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.)
Ceased
Application number
PCT/EP2018/051532
Other languages
German (de)
English (en)
Inventor
Arno Haner
Ludovic LAINE
Gerald Hüttner
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.)
Krones AG
Original Assignee
Krones AG
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 Krones AG filed Critical Krones AG
Publication of WO2018134429A1 publication Critical patent/WO2018134429A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

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
    • B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B29C49/42—Component parts, details or accessories; Auxiliary operations
    • B29C49/48—Moulds
    • B29C49/4802—Moulds with means for locally compressing part(s) of the parison in the main blowing cavity
    • B29C49/4812—Moulds with means for locally compressing part(s) of the parison in the main blowing cavity and welding opposite wall parts of the parisons or preforms to each other
    • B29C49/4815—Moulds with means for locally compressing part(s) of the parison in the main blowing cavity and welding opposite wall parts of the parisons or preforms to each other by means of movable mould parts
    • 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
    • B29C49/42—Component parts, details or accessories; Auxiliary operations
    • B29C49/48—Moulds
    • B29C49/4802—Moulds with means for locally compressing part(s) of the parison in the main blowing cavity
    • B29C2049/4807—Moulds with means for locally compressing part(s) of the parison in the main blowing cavity by movable mould parts in the mould halves
    • 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
    • B29C49/42—Component parts, details or accessories; Auxiliary operations
    • B29C49/48—Moulds
    • B29C2049/4879—Moulds characterised by mould configurations
    • B29C2049/4889—Mould halves consisting of an independent neck, main and bottom part
    • 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
    • B29C49/42—Component parts, details or accessories; Auxiliary operations
    • B29C49/48—Moulds
    • B29C2049/4879—Moulds characterised by mould configurations
    • B29C2049/4892—Mould halves consisting of an independent main and bottom part
    • 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
    • B29C49/42—Component parts, details or accessories; Auxiliary operations
    • B29C49/78—Measuring, controlling or regulating
    • B29C49/783—Measuring, controlling or regulating blowing pressure
    • B29C2049/7832—Blowing with two or more pressure levels
    • 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
    • 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
    • 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
    • B29C49/42—Component parts, details or accessories; Auxiliary operations
    • B29C49/4273—Auxiliary operations after the blow-moulding operation not otherwise provided for
    • B29C49/4283—Deforming the finished article
    • 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
    • B29C49/42—Component parts, details or accessories; Auxiliary operations
    • B29C49/48—Moulds
    • B29C49/4802—Moulds with means for locally compressing part(s) of the parison in the main blowing cavity
    • 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
    • B29C49/42—Component parts, details or accessories; Auxiliary operations
    • B29C49/78—Measuring, controlling or regulating
    • B29C49/783—Measuring, controlling or regulating blowing pressure

Definitions

  • the present invention relates to a method and apparatus according to the preambles of claims 1, 6 and 10.
  • blow molding plastic containers have long been known in the art.
  • heated plastic preforms are usually subjected to compressed air in order to be converted into plastic containers in this way.
  • the plastic preform is introduced into a blow mold and expanded against an inner wall of this blow mold.
  • side parts are usually closed around the preform and the blow mold is completed by adding a bottom part downwards.
  • the application of compressed air and in this way the expansion of the preform begins.
  • the blow mold corresponds to the negative of the plastic container to be manufactured.
  • the bottom part is usually formed in one piece in known embodiments and can - depending on the design - give the expanded plastic container different floor designs.
  • the invention is therefore based on the object to provide a method and an apparatus available to provide an improved material distribution in the ground area.
  • a higher wall thickness can be achieved in the feet of the plastic container and white feet can be avoided.
  • less cooling is required with better stretching and the blow mold is optimally vented.
  • an increased strength of the plastic containers is achieved because the drawstrings can be stretched higher.
  • the plastic preforms are expanded within a cavity formed by a blow mold by applying a flowable medium to the plastic containers.
  • the blow mold has a bottom part which delimits the cavity, the bottom part having at least a first region and a second region.
  • the second region of the bottom part has at least one segment which extends in the radial direction along the bottom part, and during the expansion process the second region is moved relative to the first region.
  • the segment which extends in the radial direction along the bottom part at least in a projection plane is rectilinear. In particular, this is a projection plane which is perpendicular to a longitudinal direction of the plastic preforms to be expanded.
  • the course of the segments in the three-dimensional preferably has a curvature.
  • the course of the segments is preferably continuous.
  • the first and the second region of the bottom part are mutually movable.
  • the second region of the bottom part forms the drawstrings of the plastic containers.
  • the first region of the bottom part preferably forms the feet on which the plastic container stands.
  • the second region of the bottom part is moved in particular in the longitudinal direction of the blow mold.
  • both the first and the second region of the bottom part each have at least two segments which extend in the radial direction along the bottom part.
  • both the first and the second region have the same number of segments.
  • the segments are arranged in particular rotationally symmetrical.
  • the individual segments are preferably designed so that they expand outward in the radial direction from the central region of the bottom part.
  • the first region of the bottom part remains immobile in the longitudinal direction during the expansion process relative to a side part of the blow mold.
  • the second region of the bottom part is located at the beginning of the expansion process in a lowered position with respect to the longitudinal direction of the plastic containers (S1).
  • the second region of the bottom part is moved to this lowered position (S1) at the beginning of the expansion process.
  • lowered is meant that the distance to the mouth region of the blower form is enlarged.
  • the central region of the bottom part preferably remains unmoved during the expansion process with respect to a side part of the blow mold in the longitudinal direction. However, it is also conceivable that the central area is also moved during the expansion process.
  • the second portion of the bottom portion in the lowered position (S1) is farther from the plastic preform to be expanded than the first portion of the bottom portion. In this way it can be achieved that the plastic preform to be expanded can expand unhindered at the beginning of the blowing process, without coming into contact with the second region of the bottom part.
  • the plastic preform first comes into contact with the first region of the bottom part and only then in contact with the second region of the bottom part. In this way it can be prevented that the plastic material first comes into contact with the blow mold in the region of the tension bands and freezes at these contact points.
  • a preferred method is achieved instead that the material first rests in the foot area of the blow mold and solidifies.
  • the feet can be molded very stable, without too much material in the range of drawstrings "hang".
  • the expansion of the plastic preform is carried out with at least two different pressures.
  • a first expansion phase also: pre-blowing phase
  • the pressure (p1) is preferably lower than the pressure (p2) in a second expansion phase (also: production phase).
  • the expansion can advantageously take place at a second pressure p 1 (also: intermediate blow phase).
  • the pressure p is preferably between the pressure p1 and the pressure p2.
  • the beginning and end of the respective expansion phases are preferably defined by the switching of valves.
  • a first valve can be closed and a second valve can be opened substantially at the same time in order to switch over from a pre-blowing pressure p1 to the intermediate-blowing pressure pi
  • the second region of the bottom part is preferably moved from the lowered position (S1) into a position (S2) raised with respect to the longitudinal direction of the plastic containers.
  • a "raised” position is understood to mean that the distance to the mouth region of the blow mold is reduced becomes. This means that the second area of the bottom part approaches the material bubble during the expansion phase.
  • the drawstrings of the material bladder advantageously only move against when the plastic material has already come into contact with the first region of the bottom part during the preblowing phase.
  • the material bubble is thus formed evenly during pre-blowing and lays down first in the area of the feet.
  • the material bubble is therefore first in the foot and solidifies; only then are the drawstrings of the material bubble countered and the soil thus completely formed.
  • a particularly homogeneous material distribution can be achieved. This in turn means that it prevents the feet of the plastic container are white. This also ensures that the feet are optimally pronounced. Due to the better stretching, less cooling is also necessary.
  • the optimal ventilation of the soil is achieved during the expansion process.
  • the present invention is further directed to a forming device for forming plastic preforms into plastic containers.
  • the forming device has at least one blow mold which, in a closed state, forms a cavity within which the plastic preforms can be expanded by being exposed to a flowable medium to the plastic containers.
  • the blow mold in turn has a bottom part which delimits the cavity, wherein the bottom part has at least a first region and a second region.
  • the second region of the bottom part has at least one segment which extends in the radial direction along the bottom part. According to the invention, the second region of the bottom part is movable relative to the first region during the expansion process.
  • this conversion device is set up in particular and provided for carrying out the method described above, i. that all the features carried out for the method described above are also disclosed for the forming device described here, and vice versa.
  • the transformation station has two side parts.
  • the first side part is arranged on a first Blasformitatiteil and the second side part of a second Blasformitatiteil, these two Blasformamaschine with respect to each other for opening and closing the blow mold with respect to at least one predetermined pivot axis are pivotally.
  • the forming device has a so-called stretch rod or generally a rod-like body, which serve to stretch the plastic preforms in the longitudinal direction thereof.
  • the forming station has a blowing nozzle, via which the blow mold and in particular the plastic preform a flowable medium and in particular a gaseous medium and in particular compressed air can be fed to expand this plastic preform.
  • the forming station is advantageously arranged on a movable carrier, in particular a rotatable carrier.
  • a plurality of forming stations is arranged on this movable support.
  • the first and the second region of the bottom part can be separated from one another by a gap, for example.
  • the second region of the bottom part is surrounded by a gap.
  • both the first and the second region of the bottom part each have at least two segments which extend in the radial direction along the bottom part.
  • at least two of the segments meet in the central region of the bottom part.
  • the first and the second region of the bottom part have the same number of segments.
  • Each region preferably has between 3 and 1 1 segments, more preferably between 3 and 9 segments and more preferably between 4 and 8 segments.
  • the segments are arranged in particular rotationally symmetrical.
  • the individual segments are preferably designed so that they expand outward in the radial direction from the central region of the bottom part.
  • the course of the segments is preferably continuous.
  • the feet of the plastic containers can be formed by the first region of the bottom part.
  • the second region of the bottom part are preferably the drawstrings the plastic containers ausformbar.
  • the second region of the bottom part thus preferably corresponds to the drawstring geometry.
  • the second area of the bottom part is further away from the plastic preform to be expanded than the first area of the bottom part in a lowered position (S1) with respect to the longitudinal direction of the plastic containers.
  • the bottom part is preferably designed as a two-part bottom cup, in which the Switzerlandbandgeo- geometry can be sunk.
  • the forming device also has a drive device to move the second region of the bottom part.
  • the drive is preferably a pneumatic drive. However, it may also be a hand crank, an electric motor or another drive such as a hydraulic drive.
  • the present invention is further directed to a bottom portion for a blow mold for expanding plastic preforms into plastic containers by exposure to a flowable medium.
  • the bottom part defines the cavity of the blow mold, in which the plastic preform is expanded, and has at least a first region and a second region.
  • the second region has at least one segment which extends in the radial direction along the bottom part, and according to the invention the second region of the bottom part is movable relative to the first region during the expansion process.
  • this bottom part is especially adapted and intended to serve as the bottom part of the above-described forming device.
  • Fig. 1 is a plastic container, as is advantageous from the present invention
  • Fig. 2 is a schematic representation of a blow mold according to the invention.
  • Fig. 3 is an illustration of the bottom part according to the invention, in which the second
  • FIG. 4 is a sectional view of the bottom part according to the invention, in which the second area is in the lowered position S1;
  • Fig. 5 is an illustration of the bottom part according to the invention, in which the second
  • Fig. 6 is a sectional view of the bottom part according to the invention, in which the second region is in the extended position S2.
  • FIG. 1 shows a possible embodiment of a finished plastic container.
  • This plastic container 10 has an orifice 12 and a base body 14 adjoining this orifice.
  • a base section 2 adjoins this base 14.
  • the reference character L refers to a longitudinal direction of the plastic container 10, the reference numeral R to a radial direction of the container bottom. 2
  • the bottom portion 2 has a plurality of feet 4, with which the plastic container 10 can stand upright on a straight surface. Between the individual feet 4, the bottom portion grooves, so-called drawstrings 6, on. The drawstrings also serve the stability of the soil.
  • Fig. 2 shows a schematic representation of the blow mold 20 according to the invention.
  • the reference numeral 30 denotes a side part of the blow mold 20.
  • the second side part of the blow mold is not shown in order to enable a better representation of the invention essential features.
  • the second side part In a closed state of the blow mold, the second side part would be arranged symmetrically on the illustrated side part 30, so that a cavity 28 is formed between the side parts. In this cavity, the Kunststoffvoi ormling is expanded by exposure to a flowable medium to a plastic container.
  • the cavity 28 is limited except by the side parts of the bottom part 22.
  • the bottom part 22, in turn, consists of two separate regions 24 and 26.
  • the design of the bottom part 22 is shown in more detail in FIGS. 3 and 4.
  • the mouth region 34 On the side opposite the bottom part 22 of the blow mold 20 is the mouth region 34 which receives the mouth 12 of the plastic container.
  • the term "top” means the blowing region of the mouth region 34. Accordingly, "lifted” means a position closer to the mouth region 34 and “lowered” means a position further away from the mouth region 34.
  • the first region 24 of the bottom part includes the entire region, which extends in a star-shaped manner radially outwards starting from the central region 32 of the bottom part and is in a position raised in relation to the region 26.
  • the first region 24 has a plurality of recesses in which the second region 26 is located (in the lowered position). Since the second region 26 in FIGS. 3 and 4 is in the lowered position, edges (251, 252) can be seen between the first and the second region.
  • the arrangement is basically also conceivable in reverse, i. that the first area is raised.
  • the first region 24 has a plurality of segments 241, 242. For reasons of clarity, only two segments have been labeled, even if, in the exemplary embodiment illustrated in FIG. 3, the first region 24 actually has five segments. Of course, depending on the desired bottle shape, any other number of segments is also possible.
  • the second region 26 also has a plurality of segments 261, 262. Again, for reasons of clarity again only two (instead of the existing five) segments were labeled.
  • both the segments 241, 242 of the first region 24 and the segments 261, 262 of the second region 26 coincide in the center of the bottom portion 22.
  • the invention also relates to such soil forms in which not all segments meet in the middle of each other.
  • the segments of the second region 26 can be made significantly smaller so that these segments end already at a greater radial distance from the central region 32 of the bottom part.
  • the individual segments 241, 242 and 261, 262 need not all be identical.
  • the second region 26 could have segments of different sizes and shapes.
  • Figs. 3 and 4 show the bottom part 22 in the state in which it is preferably at the beginning of the expansion process, or in which it is brought.
  • the plastic preform When the plastic preform is expanded toward the plastic container, the plastic preform expands and the plastic material first strikes the first region 24.
  • the feet 4 of the plastic container 10 are formed from this region 24. Only during the blowing process, the second area 26 is moved upwards.
  • Figs. 5 and 6 illustrate the bottom part in this state, in which the second area 26 has been moved upwards to the position S2.
  • the areas 24 and 26 can be recognized, each area again having a plurality of segments. Again, not all segments have been labeled for clarity.
  • the regions 24 and 26 abut one another in this state so that no edge is formed between the regions 24 and 26, but a smooth transition is given.
  • the blow mold 20 forms the negative of the plastic container 10 to be produced.
  • the bottom portion 2 of the plastic container 10 should be formed continuously and without edges.
  • a part of the second region 26 protrudes in this raised position S2 in the longitudinal direction L of the blow mold 20 further upwards than the first region 24.
  • the plastic preform is pressed inwards during the expansion process. In this way, the drawstrings 6 of the plastic container 10 are formed by the second region 26.

Landscapes

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

Abstract

L'invention concerne un procédé pour façonner des ébauches en matière plastique de manière à obtenir des contenants (10) en matière plastique, ces ébauches (10) en matière plastique subissant un processus d'expansion dans une cavité (28) formée par un moule de soufflage (20) sous l'action d'un milieu fluide de manière à former les contenants (10) en matière plastique, le moule de soufflage (20) comprenant une partie fond (22) qui délimite la cavité (28), cette partie fond (22) comprenant au moins une première zone (24) et une deuxième zone (26), la deuxième zone (26) de la partie fond comportant au moins un segment (261, 262) qui s'étend dans la direction radiale le long de la partie fond, et cette deuxième zone (26) étant déplacée par rapport à la première zone (24) pendant le processus d'expansion.
PCT/EP2018/051532 2017-01-23 2018-01-23 Procédé pour produire des contenants en matière plastique comprenant des zones de fond mobiles les unes par rapport aux autres, et dispositif de formage correspondant Ceased WO2018134429A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102017101216.8A DE102017101216A1 (de) 2017-01-23 2017-01-23 Verfahren zum Herstellen von Kunststoffbehältnissen mit zueinander beweglichen Bodenbereichen
DE102017101216.8 2017-01-23

Publications (1)

Publication Number Publication Date
WO2018134429A1 true WO2018134429A1 (fr) 2018-07-26

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ID=61094465

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2018/051532 Ceased WO2018134429A1 (fr) 2017-01-23 2018-01-23 Procédé pour produire des contenants en matière plastique comprenant des zones de fond mobiles les unes par rapport aux autres, et dispositif de formage correspondant

Country Status (2)

Country Link
DE (1) DE102017101216A1 (fr)
WO (1) WO2018134429A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4769206A (en) * 1985-12-05 1988-09-06 Krupp Corpoplast Maschienebau Gmbh Method for producing a hollow body provided with a stand ring by blow moulding
US6635217B1 (en) * 1995-11-30 2003-10-21 Charles Jonathan Britton Containers
WO2013074502A1 (fr) * 2011-11-15 2013-05-23 Amcor Limited Utilisation d'une tige de contraction et/ou d'un dispositif de relèvement de base lors de soufflage multiple
US20150375442A1 (en) * 2013-04-12 2015-12-31 Sidel Participations Mold having an offset parting line for manufacturing containers having increased stability

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8313686B2 (en) 2008-02-07 2012-11-20 Amcor Limited Flex ring base

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4769206A (en) * 1985-12-05 1988-09-06 Krupp Corpoplast Maschienebau Gmbh Method for producing a hollow body provided with a stand ring by blow moulding
US6635217B1 (en) * 1995-11-30 2003-10-21 Charles Jonathan Britton Containers
WO2013074502A1 (fr) * 2011-11-15 2013-05-23 Amcor Limited Utilisation d'une tige de contraction et/ou d'un dispositif de relèvement de base lors de soufflage multiple
US20150375442A1 (en) * 2013-04-12 2015-12-31 Sidel Participations Mold having an offset parting line for manufacturing containers having increased stability

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Publication number Publication date
DE102017101216A1 (de) 2018-07-26

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