WO2009052800A1 - Procédé et dispositif de stérilisation, et dispositif de soufflage de récipients - Google Patents

Procédé et dispositif de stérilisation, et dispositif de soufflage de récipients Download PDF

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Publication number
WO2009052800A1
WO2009052800A1 PCT/DE2008/001723 DE2008001723W WO2009052800A1 WO 2009052800 A1 WO2009052800 A1 WO 2009052800A1 DE 2008001723 W DE2008001723 W DE 2008001723W WO 2009052800 A1 WO2009052800 A1 WO 2009052800A1
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WO
WIPO (PCT)
Prior art keywords
sterilization
workpiece
sterilized
preforms
sterilization unit
Prior art date
Application number
PCT/DE2008/001723
Other languages
German (de)
English (en)
Inventor
Frank Haesendonckx
Werner Hoffmann
Klaus Vogel
Original Assignee
Khs Corpoplast Gmbh & Co. Kg
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 Khs Corpoplast Gmbh & Co. Kg filed Critical Khs Corpoplast Gmbh & Co. Kg
Publication of WO2009052800A1 publication Critical patent/WO2009052800A1/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
    • 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
    • B29C49/46—Component parts, details or accessories; Auxiliary operations characterised by using particular environment or blow fluids other than air
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L2/00—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
    • A61L2/02—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor using physical phenomena
    • A61L2/08—Radiation
    • A61L2/087—Particle radiation, e.g. electron-beam, alpha or beta radiation
    • 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
    • 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
    • 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
    • B29C2949/22—Preforms or parisons whereby a specific part is made of only one component, e.g. only one layer 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
    • B29C2949/20—Preforms or parisons whereby a specific part is made of only one component, e.g. only one layer
    • B29C2949/24—Preforms or parisons whereby a specific part is made of only one component, e.g. only one layer 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
    • B29C2949/20—Preforms or parisons whereby a specific part is made of only one component, e.g. only one layer
    • B29C2949/26—Preforms or parisons whereby a specific part is made of only one component, e.g. only one layer at body 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
    • B29C2949/20—Preforms or parisons whereby a specific part is made of only one component, e.g. only one layer
    • B29C2949/28—Preforms or parisons whereby a specific part is made of only one component, e.g. only one layer at bottom 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
    • B29C2949/3024—Preforms or parisons made of several components characterised by the number of components or by the manufacturing technique
    • 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
    • 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
    • B29C49/08—Biaxial stretching during blow-moulding
    • B29C49/10—Biaxial stretching during blow-moulding using mechanical means for prestretching
    • B29C49/12—Stretching rods
    • 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
    • B29C49/08—Biaxial stretching during blow-moulding
    • B29C49/16—Biaxial stretching during blow-moulding using pressure difference for pre-stretching, e.g. pre-blowing
    • 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
    • B29C49/36—Blow-moulding apparatus having movable moulds or mould parts rotatable about one axis
    • 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
    • B29C49/42414—Treatment of preforms, e.g. cleaning or spraying water for improved heat transfer
    • B29C49/42416—Purging or cleaning the preforms
    • B29C49/42418—Purging or cleaning the preforms for sterilizing
    • 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
    • B29C49/64—Heating or cooling preforms, parisons or blown articles
    • B29C49/68—Ovens specially adapted for heating preforms or parisons
    • B29C49/685—Rotating the preform in relation to heating 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
    • B29C49/42—Component parts, details or accessories; Auxiliary operations
    • B29C49/64—Heating or cooling preforms, parisons or blown articles
    • B29C49/68—Ovens specially adapted for heating preforms or parisons
    • B29C49/6855—Cooling of heating means, e.g. avoiding overheating
    • 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
    • B29K2067/00—Use of polyesters or derivatives thereof, as moulding material

Definitions

  • the invention relates to a method for sterilizing workpieces made of a thermoplastic material in the manufacture of blow-molded containers.
  • the invention relates to a method for blow molding at least partially sterile containers.
  • the invention relates to a device for sterilizing workpieces made of a thermoplastic material in the production of blow-molded containers. Also, the invention comprises an apparatus for producing at least partially sterile workpieces made of a thermoplastic material.
  • the invention also relates to a device for blow-molding containers, which has at least one blowing station arranged on a support structure for shaping thermoplastic preforms into the containers.
  • a manufacture of sterile blow-molded containers is typically such that these containers after blow molding and sterilized before filling using hydrogen peroxide or other chemicals. It is also already known to sterilize the preforms used in the blow-molding of the containers as starting material, in particular the area of the inner surface of these preforms.
  • preforms made of a thermoplastic material for example preforms made of PET (polyethylene terephthalate) are fed to different processing stations within a blow molding machine.
  • a blow molding machine has a heating device and a blowing device, in the region of which the previously tempered preform is expanded by biaxial orientation to form a container.
  • the expansion takes place with the aid of compressed air, which is introduced into the preform to be expanded.
  • the procedural sequence in such an expansion of the preform is explained in DE-OS 43 40 291.
  • the basic structure of a blowing station for container molding is described in DE-OS 42 12 583. Possibilities for temperature control of the preforms are described in DE-OS 23 52 926.
  • the preforms as well as the blown containers can be transported by means of different handling devices.
  • the use of transport mandrels, onto which the preforms are plugged, has proven to be useful.
  • the preforms can also be handled with other support devices.
  • the use of gripper tongs for handling preforms and the use of expansion mandrels which are insertable into a muzzle region of the preform for mounting are also among the available constructions.
  • a handling of containers using transfer wheels is described, for example, in DE-OS 199 06 438 in an arrangement of the transfer wheel between a blowing wheel and a discharge path.
  • blow molding stations different embodiments are known.
  • blow stations which are arranged on rotating transport wheels, a book-like unfoldability of the mold carrier is frequently encountered. But it is also possible to use relatively movable or differently guided mold carrier.
  • fixed blowing stations which are particularly suitable for receiving a plurality of cavities for container molding, typically plates arranged parallel to one another are used as mold carriers.
  • the object of the present invention is to improve a method of the aforementioned type such that a reliable sterilization can be carried out in a simple manner.
  • This object is achieved in that the sterilization is carried out by applying an electron beam, wherein the electron beam is conducted with a radiation intensity of at least 15 kRay on the surface of the workpiece.
  • Another object of the present invention is to construct a device of the aforementioned type such that an effective sterilization with little effort is feasible.
  • At least one sterilization unit has a generator for electron radiation, wherein the generator has a hobgäbe for generating a radiation intensity in the region of a surface of the workpiece of 15 kRay.
  • a sterilization unit is arranged, which is provided with a generator for electron radiation.
  • a sterilization unit is arranged, which is provided with a generator for electron radiation.
  • Effective sterilization is realized by applying an electron beam to each part of the surface of the workpiece.
  • An advantageous orientation of the radiation source takes place in that the electron beam is aligned with an angle range of 0 to 15 ° relative to a surface normal of the surface.
  • Another embodiment variant is that the electron beam is generated by at least two radiation sources.
  • a uniform loading of the workpiece in a circumferential direction is facilitated by the fact that the workpiece is at least temporarily offset during rotation of the sterilization process in a rotation about its longitudinal axis.
  • the sterilization unit be pivoted at least temporarily during the performance of the sterilization process.
  • a preform is sterilized as a workpiece.
  • An arrangement of the sterilizer can for example be such that the preform is sterilized in the region of a feed line.
  • Another arrangement variant is provided by sterilizing the Vorforralinge in the transport direction before a heating line and after a performed arrangement of the preforms is carried out at constant intervals relative to each other.
  • Another field of application is opened up by sterilizing a blown container as the workpiece.
  • the container is sterilized in the region of a discharge line.
  • the container is sterilized in the region of a transfer wheel.
  • Another constructive realization is that the sterilization unit is arranged displaceably.
  • a compact construction of the device is supported by the fact that the sterilization unit is at least partially rod-shaped.
  • FIG. 1 is a perspective view of a blowing station for the production of containers from preforms
  • FIG. 2 shows a longitudinal section through a blow mold, in which a preform is stretched and expanded
  • 3 shows a sketch to illustrate a basic structure of a device for blow-molding containers
  • FIG. 5 shows a longitudinal section through a preform with laterally next to the preform pivotally arranged sterilizer
  • FIG. 6 modified embodiment with a displaceably arranged sterilizing device
  • FIG. 7 shows a further modified embodiment with a pivotable sterilizing device for sterilizing an inner surface of the preform
  • FIG. 8 shows an embodiment with a rod-like sterilizing device for insertion into an interior of the preform
  • Fig. 9 is a schematic representation of a sterilizer for sterilizing the inner surface of a container.
  • Fig. 10 is a schematic representation of a sterilizer for sterilizing the outer surface of a container.
  • FIG. 1 The basic structure of a device for forming preforms (1) in container (2) is shown in FIG. 1 and in FIG. 2.
  • the device for forming the container (2) consists essentially of a blowing station (3), which is provided with a blow mold (4) into which a preform (1) can be inserted.
  • the preform (1) may be an injection-molded part of polyethylene terephthalate.
  • the blow mold (4) consists of mold halves (5, 6) and a bottom part (7), which is made from a lifting device (8) is positionable.
  • the preform (1) can be held in the region of the blowing station (3) by a transport mandrel (9) which, together with the preform (1), passes through a plurality of treatment stations within the device. But it is also possible to use the preform (1), for example via pliers or other handling means directly into the blow mold (4).
  • a connecting piston (10) is arranged, which feeds the preform (1) compressed air and at the same time performs a seal relative to the transport mandrel (9).
  • a connecting piston (10) is arranged, which feeds the preform (1) compressed air and at the same time performs a seal relative to the transport mandrel (9).
  • a stretch rod (11) which is positioned by a cylinder (12).
  • curve segments is particularly useful when a plurality of blowing stations (3) are arranged on a rotating blowing wheel.
  • the use of cylinders (12) is appropriate. ßig, if fixedly arranged blow molding stations (3) are provided.
  • the stretching system is designed such that a tandem arrangement of two cylinders (12) is provided. From a primary cylinder (13), the stretching rod (11) is first moved to the area of a bottom (14) of the preform (1) before the beginning of the actual stretching process.
  • the primary cylinder (13) with extended stretching rod together with a carriage (15) carrying the primary cylinder (13) is positioned by a secondary cylinder (16) or via a cam control.
  • the secondary cylinder (16) in such a cam-controlled manner that a current stretching position is predetermined by a guide roller (17) which slides along a curved path during the execution of the stretching operation.
  • the guide roller (17) is pressed by the secondary cylinder (16) against the guideway.
  • the slide (15) slides along two guide elements (18).
  • the carriers (19, 20) are locked relative to one another by means of a locking device (40).
  • Fig. 2 shows in addition to the blown container (2) and dashed lines drawn the preform (1) and schematically a developing container bladder (23).
  • FIG. 3 shows the basic structure of a blow molding machine, which has a heating section (24) and a rotating blowing wheel (25). is provided.
  • a preform input (26) the preforms (1) are transported by transfer wheels (27, 28, 29) into the region of the heating path (24).
  • Heater (30) and fan (31) are arranged along the heating path (24) in order to temper the preforms (1).
  • After a sufficient temperature control of the preforms (1) they are transferred to the blowing wheel (25), in the region of which the blowing stations (3) are arranged.
  • the finished blown containers (2) are fed by further transfer wheels to a delivery line (32).
  • thermoplastic material different plastics can be used.
  • PET, PEN or PP can be used.
  • the expansion of the preform (1) during the orientation process takes place by compressed air supply.
  • the compressed air supply is in a pre-blowing phase in which gas, for example compressed air, is supplied at a low pressure level and subdivided into a subsequent main blowing phase in which gas is supplied at a higher pressure level.
  • gas for example compressed air
  • main blowing phase in which gas is supplied at a higher pressure level.
  • compressed air is typically used at a pressure in the interval of 10 bar to 25 bar and during the main blowing phase compressed air is supplied at a pressure in the interval of 25 bar to 40 bar.
  • the heating section (24) consists of a plurality fender transport elements (33) is formed, which are strung together like a chain and guided along deflection wheels (34).
  • deflection wheels (34) In particular, it is envisaged to open a substantially rectangular basic contour by the chain-like arrangement.
  • a single relatively large-sized guide wheel (34) and in the region of adjacent deflections two comparatively smaller dimensioned guide wheels (36) used , In principle, however, any other guides are conceivable.
  • the arrangement shown to be particularly useful since in the region of the corresponding extent of the heating section (24) three deflecting wheels (34, 36) are positioned, and although in each case the smaller deflection wheels (36) in the region of the transition to the linear curves of the heating section (24) and the larger deflection wheel (34) in the immediate transfer area to the transfer wheel (29) and the input wheel (35).
  • chain-like transport elements (33) it is also possible, for example, to use a rotating heating wheel.
  • a larger amount of preforms (1) per unit time can be tempered by the larger number of radiant heaters (30).
  • the fans (31) introduce cooling air into the region of cooling air ducts (39), which in each case oppose the associated radiant heaters (30) and emit the cooling air via outflow openings.
  • the cooling air ducts (39) can provide reflectors for the heating radiation in the area of surfaces opposite the radiant heaters (30), and it is also possible to realize cooling of the radiant heaters (30) via the discharged cooling air.
  • Fig. 5 shows a longitudinal section through a preform (1).
  • the preform (1) has a wall (41) which is provided with an outer surface (42) and an inner surface (44) facing an inner space (43).
  • a sterilization unit (45) is arranged, which is designed as an electron beam generator and which conducts an electron beam (46) in the direction of the outer surface (42).
  • the sterilizer (45) in the direction of a longitudinal axis (47) of the preform (1) is arranged pivotably.
  • the preform (1) is set in rotation during the sterilization process around its preform longitudinal axis (47). For example, it is possible, in each case after a complete rotation through 360 °, to perform a pivotal movement of the sterilization unit 45 such that successive annular or sleeve-like segments of the outer surface 42 are successively sterilized in the direction of the longitudinal axis 47.
  • FIG. 6 shows an embodiment modified from FIG. 5, in which the sterilization unit (45) is not pivotable but displaceably arranged in the direction of the longitudinal axis (47).
  • the sterilization unit (45) is positioned substantially parallel to the longitudinal axis (47), so that a constant distance between the sterilization unit (45) and the outer surface (42) is ensured.
  • the sterilization unit (45) is arranged in the vicinity of the mouth portion (21) of the preform (1).
  • the arrangement of the sterilization unit (45) takes place here such that the electron beam (46) penetrates through an opening (48) of the preform (1) into the interior space (43) and impinges here on the inner surface (44).
  • the sterilization unit (45) is pivotably arranged to act on different sterilization areas in the direction of the longitudinal axis (47).
  • pivotable sterilization units (45) it is possible to carry out the pivoting operation continuously or stepwise.
  • an overlay with a rotational movement of the preform (1) either the already mentioned annular sterilization regions or a spirally extending sterilization region can thereby be generated.
  • FIG. 8 shows a further modified embodiment, in which a rod-shaped or tubular sterilization unit (45) is retracted into the interior (43) of the preform (1).
  • the sterilization unit (45) can be positioned in the direction of the longitudinal axis (47).
  • the electron beam (46) can either be fan-shaped to 360 ° or, at a certain point in time, act on only a certain angle section of the inner surface (44). With such a focusing of the electron beam (46), the sterilization unit (45) and / or the preform (1) is rotated about the longitudinal axis (47). Between the rod-shaped sterilization unit (45) and the inner surface (44) extends a distance (49). All of the arrangements and operations of the sterilization unit (45) shown in Figs. 5-8 may also be used to sterilize blown containers (2).
  • 9 shows by way of example the arrangement of a sterilization unit (45) in the container (2) and
  • FIG. 10 shows an arrangement on the outside next to the container (2).
  • the electron beam (46) can be generated in all embodiments either from one or more electron beam sources. It is likewise possible to bundle the electron beam (46) generated by one or more electron beam sources into a uniform electron beam or to guide a plurality of different beam paths in the direction of the preform (1) or the container (2). Typically, the electron beam (46) is aligned with its major axis substantially perpendicular to the surface to be sterilized. Typically, a corresponding alignment range is in the range of 0 to 15 °, wherein in addition the already explained pivoting movements can be performed.
  • a typical level of electron radiation is chosen such that a radiation intensity of at least 15 kRay is achieved in each surface area to be sterilized. As a result, a sterilization of at least log 3 in terms of germs, bacteria and spores is achieved.
  • the sterilization unit (45) In the case of sterilization of preforms (1), it is particularly intended to arrange the sterilization unit (45) in the region of the preform input (26), a transfer wheel (27, 29) or in the region of the heating path (24).
  • an arrangement of the sterilization unit (45) typically takes place in the region of a transfer wheel or in the region of the delivery path (32).
  • the blown containers (2) are transported under such sterile conditions into the region of a filling device.
  • a positionable sterilizer 45
  • the respective positioning for example, the implementation of a pivoting movement or a displacement, using a pneumatic cylinder, an electric drive or cam-controlled.

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Epidemiology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)

Abstract

Ce procédé et ce dispositif servent à stériliser des pièces en matériau thermoplastique lors de la fabrication de récipients moulés par soufflage. Les pièces peuvent être sous la forme de paraisons (1) ou de récipients soufflés (2). La stérilisation est effectuée par application d'un rayonnement électronique. À cet effet, un équipement de stérilisation (45) est pourvu d'un générateur de rayonnement électronique. L'équipement de stérilisation peut notamment être disposé dans la région d'un dispositif de soufflage de récipients le long d'un parcours de transport des paraisons et/ou des récipients soufflés. Le rayonnement électronique est dirigé dans la région de la surface à stériliser avec une intensité de rayonnement d'au moins 15 kRay.
PCT/DE2008/001723 2007-10-23 2008-10-20 Procédé et dispositif de stérilisation, et dispositif de soufflage de récipients WO2009052800A1 (fr)

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DE102007050582.7A DE102007050582B4 (de) 2007-10-23 2007-10-23 Verfahren und Vorrichtung zum Sterilisieren sowie Vorrichtung zur Blasformung von Behältern
DE102007050582.7 2007-10-23

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EP2295324A1 (fr) 2009-09-11 2011-03-16 Krones AG Procédé et dispositif de moulage par étirage-soufflage ou de moulage par soufflage et de remplissage de récipients stériles
DE102010012569A1 (de) * 2010-03-23 2011-09-29 Krones Ag Vorrichtung zum Sterilisieren von Behältnissen
WO2011141011A1 (fr) * 2010-05-11 2011-11-17 Khs Corpoplast Gmbh & Co Kg Procédé et dispositif de stérilisation et dispositif destiné au moulage par soufflage de récipients
DE102010032336A1 (de) * 2010-07-22 2012-01-26 Khs Corpoplast Gmbh Verfahren und Vorrichtung zum Sterilisieren sowie Vorrichtung zur Blasformung von Behältern
CN102695596A (zh) * 2010-06-11 2012-09-26 Gea普洛克玛柯股份公司 用于对从塑性材料型坯得到的容器进行模制的装置、模制方法和模制机器
US20130328248A1 (en) * 2010-12-23 2013-12-12 Khs Corpoplast Gmbh Process and device for blow moulding sterile containers
EP2724731A1 (fr) * 2012-10-23 2014-04-30 Krones AG Dispositif de stérilisation extérieure d'ébauches en plastique
US8980157B2 (en) 2010-07-15 2015-03-17 GEA Procomac S.p.A Method and apparatus for aseptic moulding of containers of plastic material
US20160193775A1 (en) * 2013-08-19 2016-07-07 Khs Corpoplast Gmbh Device and method for producing sterile containers
US9457114B2 (en) 2012-12-20 2016-10-04 Krones, Ag Apparatus and method for sterilizing containers
US9757488B2 (en) 2011-06-06 2017-09-12 Khs Corpoplast Gmbh Method and device for sterilising and device for blow-moulding containers
DE102019108565A1 (de) * 2019-04-02 2020-10-08 Krones Ag Vorrichtung und Verfahren zum Sterilisieren von Behältnisverschlüssen

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DE102011107772A1 (de) * 2011-07-15 2013-01-17 Krones Aktiengesellschaft Verfahren und Vorrichtung zum Herstellen von mit Flüssigkeiten gefüllten Getränkebehältnissen
DE102011055552A1 (de) 2011-11-21 2013-05-23 Krones Ag Innengreifendes Halteelement zur Behältersterilisation mittels Elektronenstrahlen
DE102011055553A1 (de) * 2011-11-21 2013-05-23 Krones Ag Vorrichtung zur Innen- und Außensterilisierung von Kunststoffbehältnissen mittels Ladungsträgerstrahlen
DE102012112368A1 (de) 2012-12-17 2014-06-18 Krones Ag Vorrichtung und Verfahren zum Rinsen
DE202013101048U1 (de) 2013-03-11 2013-03-15 Krones Ag Vorrichtung zum Behandeln von Behältnissen mit Kunststoffführungsrollen aus Polyamidimid
JP6102904B2 (ja) 2014-02-19 2017-03-29 大日本印刷株式会社 ブロー成形機及びその殺菌方法

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US5725715A (en) * 1992-10-26 1998-03-10 Mitsui Petrochemical Industries, Ltd, Squeezable tubular container and process for the production thereof
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US8453419B2 (en) 2009-09-11 2013-06-04 Krones Ag Method and device for stretch blow molding or blow molding and filling sterile containers
JP2011056943A (ja) * 2009-09-11 2011-03-24 Krones Ag 滅菌容器を延伸ブロー成形またはブロー成形して充填するための方法および装置
DE102009041215A1 (de) 2009-09-11 2011-03-24 Krones Ag Verfahren und Vorrichtung zum Streckblasformen oder Blasformen und Füllen steriler Behälter
CN102019686A (zh) * 2009-09-11 2011-04-20 克朗斯股份公司 拉伸吹塑成型或吹塑成型和灌装无菌容器用的方法和装置
EP2295324A1 (fr) 2009-09-11 2011-03-16 Krones AG Procédé et dispositif de moulage par étirage-soufflage ou de moulage par soufflage et de remplissage de récipients stériles
CN102019686B (zh) * 2009-09-11 2013-09-25 克朗斯股份公司 拉伸吹塑成型或吹塑成型和灌装无菌容器用的方法和装置
JP2011201600A (ja) * 2010-03-23 2011-10-13 Krones Ag 容器を殺菌するための装置
EP2371397A1 (fr) * 2010-03-23 2011-10-05 Krones AG Dispositif de stérilisation de récipients
DE102010012569A1 (de) * 2010-03-23 2011-09-29 Krones Ag Vorrichtung zum Sterilisieren von Behältnissen
WO2011141011A1 (fr) * 2010-05-11 2011-11-17 Khs Corpoplast Gmbh & Co Kg Procédé et dispositif de stérilisation et dispositif destiné au moulage par soufflage de récipients
CN103209714A (zh) * 2010-05-11 2013-07-17 Khs科波普拉斯特有限责任公司 灭菌方法和装置以及用于吹塑成型容器的装置
US9144932B2 (en) 2010-06-11 2015-09-29 Gea Procomac S.P.A. Device for moulding a receptacle obtained from a parison of plastic material, a moulding method and a moulding machine
CN102695596A (zh) * 2010-06-11 2012-09-26 Gea普洛克玛柯股份公司 用于对从塑性材料型坯得到的容器进行模制的装置、模制方法和模制机器
CN102695596B (zh) * 2010-06-11 2015-04-15 Gea普洛克玛柯股份公司 用于对从塑性材料型坯得到的容器进行模制的装置、模制方法和模制机器
US8980157B2 (en) 2010-07-15 2015-03-17 GEA Procomac S.p.A Method and apparatus for aseptic moulding of containers of plastic material
DE102010032336A1 (de) * 2010-07-22 2012-01-26 Khs Corpoplast Gmbh Verfahren und Vorrichtung zum Sterilisieren sowie Vorrichtung zur Blasformung von Behältern
US9254343B2 (en) 2010-07-22 2016-02-09 Khs Corpoplast Gmbh Method and device for sterilizing preforms
CN103221194B (zh) * 2010-07-22 2018-11-23 Khs科波普拉斯特有限责任公司 用于给预制坯件消毒的方法和装置
CN103221194A (zh) * 2010-07-22 2013-07-24 Khs科波普拉斯特有限责任公司 用于给预制坯件消毒的方法和装置
US20130328248A1 (en) * 2010-12-23 2013-12-12 Khs Corpoplast Gmbh Process and device for blow moulding sterile containers
US9757488B2 (en) 2011-06-06 2017-09-12 Khs Corpoplast Gmbh Method and device for sterilising and device for blow-moulding containers
CN103770981A (zh) * 2012-10-23 2014-05-07 克朗斯股份公司 用于塑料型坯的外部杀菌的设备
CN103770981B (zh) * 2012-10-23 2016-06-01 克朗斯股份公司 用于塑料型坯的外部杀菌的设备
US9775923B2 (en) 2012-10-23 2017-10-03 Krones Ag Device for external sterilisation of plastic parisons
EP2724731A1 (fr) * 2012-10-23 2014-04-30 Krones AG Dispositif de stérilisation extérieure d'ébauches en plastique
US9457114B2 (en) 2012-12-20 2016-10-04 Krones, Ag Apparatus and method for sterilizing containers
US20160193775A1 (en) * 2013-08-19 2016-07-07 Khs Corpoplast Gmbh Device and method for producing sterile containers
DE102019108565A1 (de) * 2019-04-02 2020-10-08 Krones Ag Vorrichtung und Verfahren zum Sterilisieren von Behältnisverschlüssen

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