WO2009040009A2 - Verfahren und vorrichtung zur herstellung von kunststoff-behältern - Google Patents
Verfahren und vorrichtung zur herstellung von kunststoff-behältern Download PDFInfo
- Publication number
- WO2009040009A2 WO2009040009A2 PCT/EP2008/007627 EP2008007627W WO2009040009A2 WO 2009040009 A2 WO2009040009 A2 WO 2009040009A2 EP 2008007627 W EP2008007627 W EP 2008007627W WO 2009040009 A2 WO2009040009 A2 WO 2009040009A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- extrusion head
- hollow tube
- strip
- layer
- storage space
- Prior art date
Links
- 229920003023 plastic Polymers 0.000 title claims abstract description 58
- 239000004033 plastic Substances 0.000 title claims abstract description 56
- 238000000034 method Methods 0.000 title claims abstract description 11
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 9
- 239000000463 material Substances 0.000 claims abstract description 32
- 238000001125 extrusion Methods 0.000 claims abstract description 31
- 238000003860 storage Methods 0.000 claims abstract description 25
- 230000002093 peripheral effect Effects 0.000 claims description 6
- 238000006073 displacement reaction Methods 0.000 claims description 2
- 239000007788 liquid Substances 0.000 abstract description 4
- 239000013590 bulk material Substances 0.000 abstract 1
- 229920001169 thermoplastic Polymers 0.000 abstract 1
- 239000004416 thermosoftening plastic Substances 0.000 abstract 1
- 238000011049 filling Methods 0.000 description 6
- 238000000071 blow moulding Methods 0.000 description 4
- 229920001903 high density polyethylene Polymers 0.000 description 3
- 239000004700 high-density polyethylene Substances 0.000 description 3
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 239000002360 explosive Substances 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 239000000049 pigment Substances 0.000 description 2
- 206010061218 Inflammation Diseases 0.000 description 1
- 206010067482 No adverse event Diseases 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 230000004054 inflammatory process Effects 0.000 description 1
- 239000012263 liquid product Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
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- 239000000203 mixture Substances 0.000 description 1
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- 231100000989 no adverse effect Toxicity 0.000 description 1
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- 238000003756 stirring Methods 0.000 description 1
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- 238000012546 transfer Methods 0.000 description 1
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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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/16—Articles comprising two or more components, e.g. co-extruded layers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D1/00—Containers having bodies formed in one piece, e.g. by casting metallic material, by moulding plastics, by blowing vitreous material, by throwing ceramic material, by moulding pulped fibrous material, by deep-drawing operations performed on sheet material
- B65D1/12—Cans, casks, barrels, or drums
- B65D1/14—Cans, casks, barrels, or drums characterised by shape
- B65D1/16—Cans, casks, barrels, or drums characterised by shape of curved cross-section, e.g. cylindrical
- B65D1/165—Cylindrical cans
-
- 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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
-
- 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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/16—Articles comprising two or more components, e.g. co-extruded layers
- B29C48/18—Articles comprising two or more components, e.g. co-extruded layers the components being layers
- B29C48/19—Articles comprising two or more components, e.g. co-extruded layers the components being layers the layers being joined at their edges
-
- 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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/30—Extrusion nozzles or dies
- B29C48/32—Extrusion nozzles or dies with annular openings, e.g. for forming tubular articles
- B29C48/325—Extrusion nozzles or dies with annular openings, e.g. for forming tubular articles being adjustable, i.e. having adjustable exit sections
- B29C48/327—Extrusion nozzles or dies with annular openings, e.g. for forming tubular articles being adjustable, i.e. having adjustable exit sections with centering means
-
- 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
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D25/00—Details of other kinds or types of rigid or semi-rigid containers
- B65D25/54—Inspection openings or windows
- B65D25/56—Inspection openings or windows with means for indicating level of contents
-
- 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
- B29C2949/3006—Preforms or parisons made of several components having tangentially different components within one layer, e.g. longitudinal stripes
-
- 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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
- B29C48/10—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels flexible, e.g. blown foils
-
- 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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/16—Articles comprising two or more components, e.g. co-extruded layers
- B29C48/18—Articles comprising two or more components, e.g. co-extruded layers the components being layers
- B29C48/21—Articles comprising two or more components, e.g. co-extruded layers the components being layers the layers being joined at their surfaces
-
- 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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/30—Extrusion nozzles or dies
- B29C48/32—Extrusion nozzles or dies with annular openings, e.g. for forming tubular articles
-
- 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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/30—Extrusion nozzles or dies
- B29C48/32—Extrusion nozzles or dies with annular openings, e.g. for forming tubular articles
- B29C48/335—Multiple annular extrusion nozzles in coaxial arrangement, e.g. for making multi-layered tubular articles
-
- 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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/30—Extrusion nozzles or dies
- B29C48/32—Extrusion nozzles or dies with annular openings, e.g. for forming tubular articles
- B29C48/335—Multiple annular extrusion nozzles in coaxial arrangement, e.g. for making multi-layered tubular articles
- B29C48/336—Multiple annular extrusion nozzles in coaxial arrangement, e.g. for making multi-layered tubular articles the components merging one by one down streams in the die
- B29C48/3366—Multiple annular extrusion nozzles in coaxial arrangement, e.g. for making multi-layered tubular articles the components merging one by one down streams in the die using a die with concentric parts, e.g. rings, cylinders
-
- 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
- B29C49/04—Extrusion 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
- B29C49/22—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor using multilayered preforms or parisons
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2023/00—Use of polyalkenes or derivatives thereof as moulding material
- B29K2023/04—Polymers of ethylene
- B29K2023/06—PE, i.e. polyethylene
- B29K2023/0608—PE, i.e. polyethylene characterised by its density
- B29K2023/065—HDPE, i.e. high density polyethylene
-
- 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
- B29L2031/7126—Containers; Packaging elements or accessories, Packages large, e.g. for bulk storage
Definitions
- the invention relates to a method and an apparatus for producing blow-molded two- or multi-layer containers made of thermoplastic material and subsequently produced plastic container with viewing strips, in particular for the storage and transport of liquid products.
- Such a plastic container usually has vertically extending container walls with horizontally extending container upper floor and underbody, wherein at least in the container upper floor or in the container lid a gas and liquid-tight sealable filling and emptying opening is arranged.
- the plastic container may, for. B. as canister, Fassett, bung barrel, lidded barrel with drum lid and clamping ring closure or be designed as a large-volume inner container of a pallet container, this is usually equipped with a lower removal fitting.
- plastic containers - in multi-layer containers at least in the outer layer - colored, such.
- plastic containers at least in the outer layer - colored, such.
- blue bung casks or black colored with Leitruß plastic containers with electrically dissipative outer layer.
- plastic containers with a colored outer layer it is desirable at any time to be able to recognize the respective filling or emptying state of the container.
- colored plastic containers are usually provided with a narrow vertically extending viewing strip of natural-colored (virgin) plastic, through which the respective filling level of the filling material in the container can be clearly seen.
- the production of plastic containers with view strips by the blow molding process is somewhat expensive and requires a corresponding additional equipment of the extrusion head (continuous or discontinuous) and a corresponding separate extruder for the arrivesstMakematerial.
- Another field of application relates to the storage and transport of combustible liquids.
- a pallet container DE 196 05 890 A1; see 19.02.96
- By fluid friction on the inner container surface occurring electrical charges by means of electrically conductive connection via an electrically conductive outer coating of the inner container and the metallic base (steel pallet) derived in the ground.
- Electric discharges with a sparking between the plastic inner container and the metal mesh jacket which can lead to an inflammation of flammable contents of the pallet container and explosive mixtures of gases and vapors in enclosed spaces, are therefore excluded.
- a disadvantage of the known pallet container is that it has no viewing strip and due to the black color of the plastic inner container, an optical level control is not possible.
- Another pallet container with a multilayer inner container, with soot-blackened permanently antistatic outer layer with at least one integrated viewing strip made of transparent plastic material is known from DE 202 06 436 (Pro 23.04.02).
- An apparatus for producing plastic containers with sight strips in the embodiment of an extrusion storage head is z. B. from EP 0 333 956 B1.
- colorless plastic material from the inner layer in the annular gap of the extrusion head is partially withdrawn from the annular nozzle by means of a suitable device, deflected in the radial direction and redirected and inserted into the separated outer layer (transfer of virgin material from the inner layer into the outer layer).
- the invention comprises an extrusion head for producing blow molded multilayer plastic hollow bodies, comprising a housing having two or more ports for two or more extruders through which various molten plastic materials are fed via two or more peripheral manifolds to a two or more extruder multi-layer tubular preform are circumferentially distributed, wherein the tubular preform flows through a cylindrical storage space, provided with a viewing strip and ejected via a controllable annular nozzle, wherein laterally on the housing of the extrusion head below the peripheral manifold and above the annular nozzle, a further connection is provided through which a Hollow tube is inserted into the cylindrical storage space, the inside in the storage space an upwardly facing input port and the outside in the storage space one after u NEN pointing output port through which plastic material from the inner layer for introducing the visible strip in the colored outer layer of the tubular preform is deflected and storable.
- a drive screw spiral for conveying plastic material is provided within the hollow tube.
- the drive for the screw helix can be done for example by means of a hydraulic motor or electric motor.
- the hollow tube can be pulled out of the housing and the corresponding further connection is formed closable by means of an attached lid or blanking plug.
- the hollow tube with driven screw helix is designed as a very inexpensive retrofit kit, which can be installed in any existing extrusion head.
- manufacturers of blow-molded plastic hollow bodies in a simple and cost-effective manner to upgrade their existing blow molding machines so that - as needed - various plastic containers such.
- plastic bung casks or lidded drums can be made with or without sight strip without requiring a costly equipment with additional extruder is needed.
- the hollow tube with screw helix is designed to be displaceable in the radial direction and is advantageously equipped with a corresponding drive for displacement in the radial direction.
- molten plastic material from the inner layer for introducing the visible strip into the colored outer layer is deflected and stored in the extrusion head within the cylindrical storage space. If necessary, the redirecting and storing the molten plastic material from the inner layer for introducing the visible strip in the colored outer layer also only sequentially (discontinuous) done so that the sight strip only in the vertical wall and not in the top and bottom of the finished blown container is arranged.
- FIG 1 shows an extrusion head according to the invention with schematically indicated
- Figure 3 is a plastic lidded barrel with sight strips and Figure 4 is a large-volume plastic inner container with viewing strips
- the reference numeral 10 an extrusion head for the production of blow molded two-layer plastic hollow bodies in the embodiment of a storage head (battery head) shown with a housing 12, on which (not shown in the partial view) two ports are provided for two extruders.
- two circumferential distributors 14, 16 are supplied with molten plastic material.
- the two circumferential distributors 14, 16 are designed as concentric cylindrical sleeves with incorporated spiral channels for the circumferential distribution of the plastic material streams flowing from the extruders in each case in a full strand.
- the peripheral distributor 16 is still covered by a further cylinder sleeve 42.
- the three concentric cylindrical sleeves 14, 16, 42 with internal or covered spiral channels are fixed against each other and together form the so-called ejection piston.
- the ejection piston encloses a central mandrel 46 and is mounted vertically displaceable in the housing and provided for this purpose with a corresponding ejection drive.
- the plastic material distributed completely over the circumference emerges as a two-layered tubular preform 18, flows through a cylindrical storage space 20, in which is incorporated during the extrusion process, a sight strip 24, and is finally ejected via a controllable annular nozzle 22 from the extrusion head 10.
- the tubular preform 18 is ejected sequentially from the storage space 20 via the controllable annular nozzle 22 by means of the ejection piston.
- the central mandrel 46 is also slidably disposed in the housing 12.
- the extrusion head 10 can of course also be designed as a continuous extrusion head with a continuous hose outlet.
- a special device is arranged within the storage space 20, below the circumferential distributors 14, 16 and above the controllable annular nozzle 22, in which a material redistribution is performed.
- This material redistribution is carried out by means of a hollow tube 28 such that in the radial direction from the inside to the outside plastic material from the inner, consisting of original natural material layer 34 of the finished preform 18 initially deducted, deflected in the radial direction and out, and then again in Axialströmungscardi deflected and inserted as a transparent viewing strip in the outer colored layer 36 of the preform 18.
- the partial material redistribution results in slight changes in the layer thicknesses in a local area around the inserted sight strip (decrease of the inner layer and increase in the outer layer), which are completely irrelevant in the finished product and have no adverse effect on the mechanical performance values (internal pressure test, fall resistance) , Stack load capacity) of the container.
- the lower housing part 48 in which the hollow tube 28 is arranged for introducing the visible strip 24, rotatably mounted on the housing 12 of the extrusion head, so that the sight strip in the ejected preform exactly in a desired position, for. B. the mold parting seam plane can be positioned.
- the lower housing part 48 may also be provided with a servomotor, with which the rotation of the lower housing part in both directions of rotation and thus the position of the display strip with respect to the blow mold or its position in the inflated container can be adjusted.
- the hollow tube 28 inserted into the lower housing part 48 has an outer diameter of approximately 45 mm and protrudes approximately 50 mm deep into the storage space 20.
- the upper opening 30 is about 30 mm wide and also long, while the lower opening 32 is about 35 mm long but only 10 mm wide.
- the spiral screw 38 is preferably designed as a double-threaded coil and has a length of only about 55 mm. Outwardly, the hollow tube 28 is completely sealed behind the screw 38 at the drive shaft via corresponding sealing rings.
- the outer layer colored by means of mixed-in color pigments or conductive carbon black is made comparatively thin, since the color pigments or conductive carbon black are comparatively expensive.
- the colored outer layer has only 5 to 20%, preferably about 10%, of the container wall.
- the layer thickness of the inner layer of new material should not be less than 50%.
- the middle layer with a layer thickness of between 20% and 60%, is generally made of high-density polyethylene, using recycled granules or regrind (colorless or natural HDPE).
- the plastic containers are equipped with a black, electrically conductive outer layer - by adding conductive carbon black. Also, this outer layer should be made as thin as possible for cost savings reasons.
- FIG. Figure 4 shows another embodiment in the form of a large volume plastic inner container 56 with sight strip 58 and measuring scale 60 for a pallet container with a capacity of 1000 liters.
- the viewing strip should - viewed in the circumferential direction - have a width of about 10 mm to 20 mm, so that the respective level of liquid filling material is always clearly visible.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Ceramic Engineering (AREA)
- Physics & Mathematics (AREA)
- Geometry (AREA)
- Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
- Containers Having Bodies Formed In One Piece (AREA)
- Shaping Of Tube Ends By Bending Or Straightening (AREA)
Abstract
Description
Claims
Priority Applications (13)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE502008003300T DE502008003300D1 (de) | 2007-09-21 | 2008-09-05 | Verfahren und vorrichtung zur herstellung von kunststoff-behältern |
KR1020107006120A KR101510812B1 (ko) | 2007-09-21 | 2008-09-05 | 플라스틱 컨테이너 제조를 위한 방법 및 장치 |
PL08802174T PL2188104T3 (pl) | 2007-09-21 | 2008-09-05 | Sposób i urządzenie do wytwarzania plastikowych pojemników |
BRPI0817203-0A BRPI0817203B1 (pt) | 2007-09-21 | 2008-09-05 | Cabeça de extrusão para a fabricação de corpos ocos de material plástico de várias cavidades e processo para a fabricação de corpos ocos |
US12/595,009 US8021597B2 (en) | 2007-09-21 | 2008-09-05 | Method and apparatus for producing plastic containers |
JP2010525239A JP5290298B2 (ja) | 2007-09-21 | 2008-09-05 | プラスチック容器を製造するための方法及び装置 |
EP08802174A EP2188104B1 (de) | 2007-09-21 | 2008-09-05 | Verfahren und vorrichtung zur herstellung von kunststoff-behältern |
AT08802174T ATE506167T1 (de) | 2007-09-21 | 2008-09-05 | Verfahren und vorrichtung zur herstellung von kunststoff-behältern |
CA2698644A CA2698644C (en) | 2007-09-21 | 2008-09-05 | Method and apparatus for producing plastic containers |
CN2008801087306A CN101868337B (zh) | 2007-09-21 | 2008-09-05 | 用于制造塑料容器的方法和装置 |
DE112008001954T DE112008001954A5 (de) | 2007-09-21 | 2008-09-05 | Verfahren und Vorrichtung zur Herstellung von Kunststoff-Behältern |
AU2008303873A AU2008303873B2 (en) | 2007-09-21 | 2008-09-05 | Method and device for the production of plastic containers |
IL203308A IL203308A (en) | 2007-09-21 | 2010-01-14 | Method and device for the production of plastic containers |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE202007013318U DE202007013318U1 (de) | 2007-09-21 | 2007-09-21 | Vorrichtung und deren Verwendung zur Herstellung von Kunststoff-Behältern mit Sichtstreifen |
DE202007013318.9 | 2007-09-21 |
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US (1) | US8021597B2 (de) |
EP (1) | EP2188104B1 (de) |
JP (1) | JP5290298B2 (de) |
KR (1) | KR101510812B1 (de) |
CN (1) | CN101868337B (de) |
AT (1) | ATE506167T1 (de) |
AU (1) | AU2008303873B2 (de) |
BR (1) | BRPI0817203B1 (de) |
CA (1) | CA2698644C (de) |
DE (4) | DE202007013318U1 (de) |
ES (1) | ES2364528T3 (de) |
IL (1) | IL203308A (de) |
MY (1) | MY149015A (de) |
PL (1) | PL2188104T3 (de) |
WO (1) | WO2009040009A2 (de) |
ZA (1) | ZA201001507B (de) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2470937B (en) * | 2009-06-10 | 2014-09-24 | Cadbury Uk Ltd | Extrusion die head |
CN102950749B (zh) * | 2011-08-29 | 2014-12-10 | 爱康企业集团(上海)有限公司 | 一种pp-r管材生产设备 |
CN102555186A (zh) * | 2012-01-18 | 2012-07-11 | 潍坊市新恒达机械有限公司 | 中空成型机三层机头及中层发泡的三层中空料坯制造方法 |
CN104191593B (zh) * | 2014-08-07 | 2017-07-21 | 张家港市普信机械有限公司 | 一种吹塑机模头 |
CN106738774A (zh) * | 2016-12-31 | 2017-05-31 | 剑河县连光复合塑料水管有限公司 | 双层复合管挤塑模具 |
US10744720B2 (en) * | 2017-09-07 | 2020-08-18 | Sonoco Development, Inc. | Container with product visualization aperture |
JP7113414B2 (ja) * | 2018-08-29 | 2022-08-05 | キョーラク株式会社 | ブロー成形方法及びブロー成形装置 |
DE202019105681U1 (de) * | 2019-10-15 | 2021-01-19 | Kautex Maschinenbau Gmbh | Extrusionstechnik zur Bildung von Kunststoff-Vorformlingen und Schlauchbildungstechnik |
Citations (5)
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DE3844605A1 (de) | 1988-06-11 | 1990-02-08 | Schuetz Werke Gmbh Co Kg | Palettenbehaelter |
DE9107812U1 (de) | 1991-06-25 | 1991-10-24 | Richter, Günter, Dipl.-Ing., 5230 Altenkirchen | Vorrichtung zur diskontinuierlichen Herstellung eines Vorformlings für das Blasformen |
EP0491093A1 (de) | 1990-12-11 | 1992-06-24 | Hoover Universal,Inc. | Düse für rohrförmige Körper aus mehreren Harzen |
DE4136766A1 (de) | 1991-06-25 | 1993-05-27 | Roth Werke Gmbh | Behaelter aus thermoplastischem kunststoff |
DE20206436U1 (de) | 2002-04-23 | 2002-08-08 | Protechna S.A., Freiburg/Fribourg | Transport- und Lagerbehälter für Flüssigkeiten |
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US3343568A (en) * | 1965-02-23 | 1967-09-26 | Phillips Petroleum Co | Extruded tubular article with clear stripe and translucent to opaque body |
JPS52962A (en) * | 1975-06-24 | 1977-01-06 | Kamaya Kagaku Kogyo Co Ltd | Method of producing hollow molded article having different color longitudinal streaking pattern |
JPS5289171A (en) * | 1976-01-20 | 1977-07-26 | Ishikawajima Harima Heavy Ind | Multiilayer cylindrical column extrusion molding machine |
US4802833A (en) * | 1988-03-21 | 1989-02-07 | Hoover Universal, Inc. | Accumulator head for producing a storage drum with view stripe |
US4874305A (en) * | 1988-11-03 | 1989-10-17 | Somerset Technologies, Inc. | Accumulator extrusion head for producing striped parisons |
DE4007234A1 (de) * | 1990-03-07 | 1991-09-12 | Doellken & Co Gmbh W | Vorrichtung zum herstellen eines marmorierten profils aus thermoplastischem kunststoff |
DE19605890A1 (de) | 1996-02-19 | 1997-08-21 | Protechna Sa | Transport- und Lagerbehälter aus Kunststoff für flüssige, pulverförmige und körnige Füllgüter |
DE19635334A1 (de) * | 1996-08-31 | 1998-03-05 | Guenter Dipl Ing Richter | Faßartiger Behälter aus Kunststoff sowie Verfahren und Vorrichtung zu seiner Herstellung |
JP4335442B2 (ja) | 1998-03-05 | 2009-09-30 | マウザー−ヴェルケ ゲゼルシャフト ミット ベシュレンクテル ハフツング | 押出ヘッド |
DE10312522B3 (de) * | 2003-03-20 | 2004-09-23 | Sig Technology Ltd. | Extrusionskopf sowie Extrusionsverfahren |
JP4996597B2 (ja) * | 2005-05-10 | 2012-08-08 | マウザー−ヴェルケ ゲゼルシャフト ミット ベシュレンクテル ハフツング | ブロー成形された多層のプラスチック中空体を製造する押出しストレージヘッド及び方法 |
-
2007
- 2007-09-21 DE DE202007013318U patent/DE202007013318U1/de not_active Expired - Lifetime
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2008
- 2008-09-05 AT AT08802174T patent/ATE506167T1/de active
- 2008-09-05 BR BRPI0817203-0A patent/BRPI0817203B1/pt active IP Right Grant
- 2008-09-05 CN CN2008801087306A patent/CN101868337B/zh active Active
- 2008-09-05 PL PL08802174T patent/PL2188104T3/pl unknown
- 2008-09-05 MY MYPI2010000196A patent/MY149015A/en unknown
- 2008-09-05 EP EP08802174A patent/EP2188104B1/de active Active
- 2008-09-05 JP JP2010525239A patent/JP5290298B2/ja active Active
- 2008-09-05 US US12/595,009 patent/US8021597B2/en active Active
- 2008-09-05 KR KR1020107006120A patent/KR101510812B1/ko active IP Right Grant
- 2008-09-05 ES ES08802174T patent/ES2364528T3/es active Active
- 2008-09-05 DE DE112008001954T patent/DE112008001954A5/de not_active Withdrawn
- 2008-09-05 WO PCT/EP2008/007627 patent/WO2009040009A2/de active Application Filing
- 2008-09-05 CA CA2698644A patent/CA2698644C/en active Active
- 2008-09-05 AU AU2008303873A patent/AU2008303873B2/en active Active
- 2008-09-05 DE DE502008003300T patent/DE502008003300D1/de active Active
- 2008-09-05 DE DE102008045971A patent/DE102008045971A1/de not_active Withdrawn
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2010
- 2010-01-14 IL IL203308A patent/IL203308A/en active IP Right Grant
- 2010-03-02 ZA ZA201001507A patent/ZA201001507B/xx unknown
Patent Citations (5)
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DE3844605A1 (de) | 1988-06-11 | 1990-02-08 | Schuetz Werke Gmbh Co Kg | Palettenbehaelter |
EP0491093A1 (de) | 1990-12-11 | 1992-06-24 | Hoover Universal,Inc. | Düse für rohrförmige Körper aus mehreren Harzen |
DE9107812U1 (de) | 1991-06-25 | 1991-10-24 | Richter, Günter, Dipl.-Ing., 5230 Altenkirchen | Vorrichtung zur diskontinuierlichen Herstellung eines Vorformlings für das Blasformen |
DE4136766A1 (de) | 1991-06-25 | 1993-05-27 | Roth Werke Gmbh | Behaelter aus thermoplastischem kunststoff |
DE20206436U1 (de) | 2002-04-23 | 2002-08-08 | Protechna S.A., Freiburg/Fribourg | Transport- und Lagerbehälter für Flüssigkeiten |
Also Published As
Publication number | Publication date |
---|---|
IL203308A (en) | 2013-03-24 |
DE102008045971A1 (de) | 2009-04-09 |
BRPI0817203B1 (pt) | 2018-11-13 |
EP2188104A2 (de) | 2010-05-26 |
BRPI0817203A2 (pt) | 2015-03-10 |
CN101868337B (zh) | 2013-09-25 |
CA2698644C (en) | 2014-11-25 |
ES2364528T3 (es) | 2011-09-06 |
DE202007013318U1 (de) | 2008-01-03 |
US20100052208A1 (en) | 2010-03-04 |
JP5290298B2 (ja) | 2013-09-18 |
CN101868337A (zh) | 2010-10-20 |
CA2698644A1 (en) | 2009-04-02 |
DE502008003300D1 (de) | 2011-06-01 |
AU2008303873A1 (en) | 2009-04-02 |
ZA201001507B (en) | 2010-10-27 |
AU2008303873B2 (en) | 2012-09-13 |
KR20100059890A (ko) | 2010-06-04 |
US8021597B2 (en) | 2011-09-20 |
PL2188104T3 (pl) | 2011-09-30 |
WO2009040009A3 (de) | 2009-08-06 |
EP2188104B1 (de) | 2011-04-20 |
JP2010538873A (ja) | 2010-12-16 |
ATE506167T1 (de) | 2011-05-15 |
KR101510812B1 (ko) | 2015-04-10 |
MY149015A (en) | 2013-06-28 |
DE112008001954A5 (de) | 2010-09-09 |
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