WO2012116776A1 - Procédé et installation pour produire des récipients remplis d'un produit liquide - Google Patents

Procédé et installation pour produire des récipients remplis d'un produit liquide Download PDF

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Publication number
WO2012116776A1
WO2012116776A1 PCT/EP2012/000563 EP2012000563W WO2012116776A1 WO 2012116776 A1 WO2012116776 A1 WO 2012116776A1 EP 2012000563 W EP2012000563 W EP 2012000563W WO 2012116776 A1 WO2012116776 A1 WO 2012116776A1
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WO
WIPO (PCT)
Prior art keywords
filling
temperature
container
forming
phase
Prior art date
Application number
PCT/EP2012/000563
Other languages
German (de)
English (en)
Inventor
Dieter Klatt
Alfred Drenguis
Original Assignee
Khs Gmbh
Khs Corpoplast Gmbh
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Khs Gmbh, Khs Corpoplast Gmbh filed Critical Khs Gmbh
Publication of WO2012116776A1 publication Critical patent/WO2012116776A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B3/00—Packaging plastic material, semiliquids, liquids or mixed solids and liquids, in individual containers or receptacles, e.g. bags, sacks, boxes, cartons, cans, or jars
    • B65B3/02—Machines characterised by the incorporation of means for making the containers or receptacles
    • B65B3/022—Making containers by moulding of a thermoplastic material
    • 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
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B55/00—Preserving, protecting or purifying packages or package contents in association with packaging
    • B65B55/02—Sterilising, e.g. of complete packages
    • B65B55/12—Sterilising contents prior to, or during, packaging
    • B65B55/14—Sterilising contents prior to, or during, packaging by heat
    • 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
    • B29C2049/4602—Blowing fluids
    • B29C2049/4635—Blowing fluids being sterile
    • 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
    • B29C2049/4602—Blowing fluids
    • B29C2049/465—Blowing fluids being incompressible
    • B29C2049/4664—Blowing fluids being incompressible staying in the final 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
    • B29C49/58—Blowing means
    • B29C2049/5827—Blowing means not touching the preform
    • 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
    • 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
    • B29C49/786—Temperature

Definitions

  • the invention relates to a method according to the preamble of claim 1 and a system according to the preamble of claim 9.
  • preforms made of a thermoplastic material for example, preforms made of PET (polyethylene terephthalate), wherein the preforms are fed to different processing stations within a blow molding machine (DE-OS 43 40 291).
  • a blow molding machine has a heating device for tempering or preheating (thermal conditioning) of the preforms and a
  • Blowing device with at least one blowing station, in the region of which each pre-tempered preform biaxially or multiaxially to a container is expanded.
  • the expansion takes place with the aid of a compressed gas (compressed air) as a pressure medium, which is introduced with a molding pressure in the preform to be expanded.
  • compressed gas compressed air
  • the procedural sequence in such an expansion of the preform is explained in DE-OS 43 40 291.
  • the basic structure of the blowing station is described in DE-OS 42 12 583. Possibilities of temperature control of the preforms are described in DE-OS 23 52 926.
  • the containers produced by blow molding are fed to a subsequent filling device and filled here with the intended product or filling material.
  • a separate blowing machine and a separate filling machine are used. It is also known, the separate blowing machine and the separate filling machine to a
  • Machine block i. to summarize a blocked blowing-filling device, wherein further the blow-molding and filling at separate
  • Forming the container is supplied with a forming and filling pressure, so that at the same time as the filling of the respective preform is deformed into the container.
  • Contamination of the respective forming and filling station or of the mold forming this station which is similar to a blow mold of a blow molding machine for producing containers of thermally conditioned preforms by blowing with a compressed gas, must be avoided.
  • contamination of the respective forming and filling station by product losses, in particular in the lowering of the internal pressure of the container, ie. in relieving the container from the rather high forming and filling pressure on the
  • the object of the invention is to provide a method for simultaneously forming and filling containers in such a way that the filled in the respective filled and sealed container contents have a high durability.
  • a method according to claim 1 is formed.
  • a plant for producing filled with a container containers by simultaneous molding and filling is the subject of claim 9.
  • “Sterilization temperature” in the context of the invention a temperature, for example, depending on the nature of the contents in the range between 70 ° C and 95 ° C or im Range between 70 and 140 ° C, to understand in any case a temperature which, taking into account the nature of the contents and the duration of the sterilization phase, ie the holding time over which the sterilization temperature of the container and filled therein filling material is maintained, the desired and / or required quality of sterilization (sterilization rate) and thus ensures the desired and / or required shelf life of the filled filling material.
  • the term "upper limit value" of the sterilization temperature is to be understood as meaning the temperature which, for example, also takes into account, taking into account the nature of the contents and the duration of the sterilization phase as a maximum
  • Sterilization temperature still no or substantially no impairment of the quality of the filling, especially the taste quality of
  • the term "lower limit" of the sterilization temperature means that temperature below which, for example, taking into account the nature of the contents and the duration of the sterilization phase, no or substantially no effective sterilization of the contents and the container, in particular the Container interior surface can be achieved more, with the lower limit of the sterilization temperature, for example, about 85% to 95% of the upper limit of the sterilization temperature.
  • hot aseptic filling or “hot-sterile filling” is understood in particular as forming and filling the containers in such a way that the contents are heated by heating to a sterilization temperature and by holding at this temperature or a temperature above a lower limit Sterilization temperature for a short period of time, for example, for a period of time Sterilization of only a few seconds, for example over a period of about 2-4 seconds before and / or after the closure of the respective container, in such a way that the respective container on its inner surface as well as in the
  • the medium is preferably in the heated or preheated state with a
  • Sterilization temperature is and, e.g. only about 65% to 75% of the upper
  • Limit value of the sterilization temperature or about 70% to 80% of the lower limit of the sterilization temperature.
  • FIG. 1 in a schematic representation of a plant according to the invention for
  • Fig. 2 in a simplified individual representation and in section a preform
  • FIG. 3 shows in a temperature-time diagram the course of the product temperature in a conventional method for hot sterile filling of a filling material using conventional filling machines
  • FIG. 6 in a simplified schematic representation again the system of Figure 1 for molding and filling of containers.
  • the plant generally designated 1 in FIG. 1 serves to produce filled and closed containers 2 in the form of bottles using preforms 3 (preforms) made of a thermoplastic material,
  • PET polyethylene terephthalate
  • PEE polyethylene
  • the preforms 3 are formed in a known manner sleeve-like with an open, the subsequent container mouth forming end, with a closed, the subsequent container bottom forming bottom and with a flange forming the later Mündungsflansch.
  • a forming and filling station 4 preform 3 is acted upon by the high molding and filling pressure and heated for a hot sterile filling contents, so that the respective preform 3 in a molding and filling process by this filling hydraulically deformed into the respective container 2.
  • the thus shaped and at the same time filled container 2 is then after its discharge from the molding and filling pressure
  • Appendix 1 includes i.a. a device 6, which are supplied to the preforms 3 via a conveyor not shown in the figure 1 according to the arrow A and at an outlet the
  • Embodiment at the same time sterilized and dried preforms. 3 provides.
  • the device 6 has for this purpose a heating section 7, in which the
  • Preheating of the preforms takes place, for example, by IR emitters, NIR emitters, etc. Furthermore, in a further section 8 of the device 6 is a
  • Actuation of the heated preforms 3 with a heated gas and / or vapor sterilization medium for example with a heated and / or vaporous, hydrogen peroxide-containing sterilization medium.
  • a further section 9 of the device 6 is then carried out using hot sterile air activation of the sterilization medium and the drying of the conditioned and sterilized preforms 3. These are then fed via a transport path, not shown corresponding to the arrow B a Preformeinlass a molding and filling machine 10 ,
  • the forming and filling machine 10 includes i.a. one rotatably mounted on a machine frame 1 1 and revolving around a vertical machine axis MA
  • drivable rotor 12 which is indicated in the schematic diagram of Figure 1 as a block. On the rotor 12 are at equal angular intervals to the
  • the product outlet temperature TK1 is higher than the product outlet temperature TK2.
  • the components K1 and K2 are identical with respect to the contents and differ, for example, only by the
  • the preferably thermally insulated boiler 1 3 and 14 are only partially filled with the components K1 and K2, so that in the ring boilers 13 and 14 each have a lower liquid space and above a gas space is formed, with an under the filling and molding pressure p1 inert gas ,
  • C02 gas is filled, which is provided via a rotary feedthrough 16 having inert gas connection 17 from an accommodated in the machine frame 1 inert gas reservoir 18.
  • the reservoir 18, the inert gas is supplied from an inert gas source, not shown, via a compressor 19, in such a way that in the inert gas reservoir 18 and thus in the gas chambers of the ring tank 1 3 and 14 of the filling and molding pressure p1 in the required level is maintained or kept constant.
  • the necessary control of the compressor 19 via a control device 20 as a function of
  • the filling level in the boilers 1 3 and 14 is kept constant by means of level control or control.
  • the product outlet temperatures TK1 and TK2 are maintained at the required level or kept constant.
  • the necessary control or regulation also takes place via the control device 20 in FIG.
  • Inert gas compound 23 is also connected to the inert gas reservoir 8. In the inert gas connection 23, a control valve 24 is provided. Another one
  • Control valve 25 is located in a vent line 26 of the annular tank 15. Both control valves are controlled by the control unit 20 in response to a pressure sensor 27, which detects the internal pressure of the annular tank 15, so that in the ring vessel 15, there is always an inert gas pressure corresponding to the pre-relief pressure p1.
  • the ring bowls 13, 14 and 15 are of course provided together for all molds 4.1 or for all of these molds forming and filling positions of the forming and filling machine 10 together, wherein the ring bowl 1 5 represents an additional optional equipment of the forming and filling machine ,
  • Each form 4.1 is in its interior or in its shape space u.a. with a
  • Stretching rod 27 is formed, which is oriented with its longitudinal extent or axis RA parallel to the vertical machine axis MA and by a drive, not shown, for. Cam synchronously with the rotational movement of the rotor 12 is axially movable, so that when molding the respective container 2 from the
  • the respective preform 3 is located in the interior of the mold 4.1 in a sealing position on a bearing head 29, i. it lies with its open, the subsequent container mouth forming end sealed by a seal 28 and
  • a channel 31 is formed, which has a plurality of radial outlet openings 32 above the end 27.1 and in which a check valve 33 with ball 34 and compression spring 35 is provided in front of the outlet openings.
  • the channel 31 sits at his the
  • Outlet openings remote end in a liquid connection 36 which includes inter alia blocking and switching valves 37 and 37.1, via which the channel 31 selectively with the liquid space of the ring tank 13 or the ring boiler 14th connected and the connection between the channel 31 and the two ring boilers 13 and 14 controlled can be interrupted.
  • a return gas channel 38 is formed, which surrounds the stretch rod 27 annular and also opens into the interior of the arranged in sealing position on the bearing head 28 preform 3 and in the interior of the bearing head 29 in sealing position container.
  • the return gas channel 38 is connected via a control valve 39 having a return gas line with the ring tank 15.
  • the fluid connection 36 with its e.g. Controlled by the controller 20 locking and switching valve 37 and the return gas line 40 with its also controlled by the control device 20 control valve 39 are for each form and
  • Filling station 4 separately and provided individually controllable.
  • the filled container 2 is removed from the storage head 29 at a container outlet of the forming and filling machine 10 and fed by means of a conveyor not shown in the figure 1 according to the arrow C of a device 41 for closing the container 2 with the closures 5.
  • the filled and sealed containers 2 are transported to a pasteurizer 42 by means of a conveyor, not shown in FIG. 1, corresponding to the arrows D and E, respectively, and from this, for example, to a labeling machine of the system 1
  • the temperature of the filling during the Formund filling phase is significantly below the sterilization temperature required in each case, preferably both Standgutausgangstemperaturen TK1 and TK2, and that a heating of the filling material on the sterilization temperature only after the expiration of the Formund filling phase, and as short as possible, so that with sufficient quality of sterilization deterioration of the quality, especially the taste quality of the filling does not occur.
  • a heater 43 is provided in the liquid connection 36 in the flow direction after the blocking and switching valve 37.1 and before the Stretching rod 27, a heater 43 is provided. Further heating devices 44 are provided in the product or product lines 45, via which the product is fed to the ring boilers 13 and 14. The two product lines 45 are connected in the flow direction of the filling material in front of the respective heating device 44 via a blocking and switching valve 46 with an external storage tank, not shown, for the contents or a system for providing the contents.
  • the blocking and control valve 46 By appropriate control of the blocking and control valve 46, the degree of filling of the ring tank 13 and 14 or the local level of Medgutspiegels is kept constant or substantially constant during the forming and filling operation.
  • FIG. 3 shows the typical one in a temperature-time diagram
  • Temperature profile 47a of the contents in a hot aseptic filling in a conventional filling method is used for filling with a
  • starting temperature TO which is well above the upper limit T1 of the sterilization temperature required for each targeted sterilization rate or the desired quality of sterilization (time interval I).
  • time interval I the sterilization temperature required for each targeted sterilization rate or the desired quality of sterilization
  • the sterilization temperature or its limits T1 and T2 as well as the duration of the sterilization phase III determine the respectively achievable sterilization rate or quality of sterilization and are e.g. et al depending on the type of the respective filling material.
  • a cooling phase IV then the container and the contents are cooled to the ambient temperature Tu.
  • the closure of the respective container takes place after completion of the filling process, i. after expiration of the time interval or filling phase II. Sterilization during the
  • Time interval or during the sterilization phase III takes place at least partially in a Pasteurisier occasion in which the respective filled and sealed container heated to the required temperature or on the required
  • FIG. 4 shows the basic temperature-time curve 47 of the filling material during the method according to the invention.
  • the filling material is with the
  • This initial temperature TO is significantly below the lower limit value T2 of the sterilization temperature and is, for example, the product outlet temperature TK1 or TK2 and / or by heating with the heater 43 and / or by appropriate mixing of the components K1 and K2 with the respectively different
  • Sterilization temperature corresponds, but in any case above the lower
  • Limit value T2 of the sterilization temperature is, partly due to a heat accumulation in the respective filled container 2 after completion of the Formund filling phase I, especially during the discharge of the respective container 2 to ambient pressure before closing with the closure or with the
  • the filled and sealed container 2 is in this case in the pasteurizer 42. Thereafter, the filled and sealed container 2 is cooled within the time interval IV, for example in the pasteurizer 42 to the ambient temperature.
  • a particular advantage of the method according to the invention or of the temperature profile shown in FIG. 4 is that the filling material flows into the
  • Ring boilers 13 and / or 14 with a product outlet temperature TK1 and / or TK2 below the upper limit T1 is kept ready and also during the molding and filling phase I, the relatively low temperature TO, while the much higher sterilization temperature on the relatively short time interval of
  • Heating phase II and the sterilization phase III is limited. Impairments on the quality, in particular the taste quality of the filling, resulting from high Browntemperaturen and long residence times of the contents at such temperatures and many times as unpleasant
  • the control of the temperature TO takes place at different Golfgutausgangemperaturen TK1 and TK2 by mixing the components K1 and K2 and / or by the heater 43, which is provided separately for example for each forming and filling station 4, but with a corresponding arrangement in the liquid connection 36 also for all Forming and filling stations 4 or may be provided together for a group of several such stations.
  • FIG. 5 shows in a temperature-time diagram the profile 47 of the temperature of the filling material or of the respective container 2 in the case of a modified one
  • the temperature profile of Figure 5 differs from the temperature profile of Figure 4 essentially only in that the temperature of the filling material during the sterilization phase III initially falls from the upper temperature value T1 (eg upper limit), then over a partial phase of the sterilization phase III at 47.1 constant or in
  • the figure 6 shows the Appendix 1 again in a simplified functional representation. Shown is the Appendix 1 with the forming and filling machine 10, with the
  • the pasteurizer 42 comprises at least two in the transport direction (arrow F) of the conveyor 48 successive sections, namely the section 48.1, at its inlet a Means for transferring the sealed container 2 is provided so that they are perpendicular to the section 48.1 with its container axis Transport direction F and horizontally or substantially horizontally oriented transported and heated in this position for sterilization, ie, for example, be acted upon by the heat energy of a heat source and / or with a hot vaporous and / or gaseous and / or liquid medium.
  • the container 2 Transport through the section 48.1, the container 2 are preferably vibrated at the same time and / or rotated about its axis container and / or rolled.
  • a device 50 is provided, with which the containers 2 are erected again for further transport through the section 42.2 of the pasteurizer 42, so that they are again oriented with their container axis in the vertical direction.
  • cooling (cooling phase IV of FIGS. 4 and 5) of the closed containers 2 takes place, for example by applying or
  • the transporter for transporting the container 2 Preferably, the transporter for transporting the container 2 but no
  • Conveyor belt as shown schematically in Figure 6, but the feed dog is for holding or gripping the container 2 in the closed by the respective closure 5 container mouth or the local
  • Container flange designed so that the folding of the container at the beginning of Section 42.1 and the Wiederrichtrich the container at the end of this
  • A, B, C transport direction of the preforms 3

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Filling Of Jars Or Cans And Processes For Cleaning And Sealing Jars (AREA)
  • Basic Packing Technique (AREA)

Abstract

L'invention concerne un procédé pour produire des récipients (2) remplis de liquide, à partir d'ébauches (3) consistant en un matériau thermoplastique, chaque ébauche étant conditionnée au moins par voie thermique, puis déformée, au cours d'une phase de façonnage et de remplissage (I) dans une matrice (4, 1), sous l'effet de la pression exercée par un produit de remplissage acheminé dans le récipient respectif, à une pression de façonnage et de remplissage (p1).
PCT/EP2012/000563 2011-03-01 2012-02-08 Procédé et installation pour produire des récipients remplis d'un produit liquide WO2012116776A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102011012751.8 2011-03-01
DE201110012751 DE102011012751B4 (de) 2011-03-01 2011-03-01 Verfahren sowie Anlage zu Herstellung von mit einem flüssigen Füllgut gefüllten Behältern

Publications (1)

Publication Number Publication Date
WO2012116776A1 true WO2012116776A1 (fr) 2012-09-07

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PCT/EP2012/000563 WO2012116776A1 (fr) 2011-03-01 2012-02-08 Procédé et installation pour produire des récipients remplis d'un produit liquide

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DE (1) DE102011012751B4 (fr)
WO (1) WO2012116776A1 (fr)

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US9180621B2 (en) * 2012-01-31 2015-11-10 Discma Ag Blow molding device
DE102013019892B4 (de) 2013-11-28 2022-03-10 Krones Ag Hohlkörperherstellungsmaschine und Verfahren zum Umformen eines Vorformlings
DE102014216562A1 (de) 2014-08-20 2016-02-25 Krones Ag Formfüllmaschine und Verfahren zum Ausformen und Füllen von Behältern
EP2987620A1 (fr) 2014-08-20 2016-02-24 Krones AG Remplisseuse de moule destinée à démouler et à remplir des récipients
EP2987618B1 (fr) * 2014-08-20 2021-05-26 Krones AG Remplisseuse de moule et procédé de moulage et de remplissage de récipients
DE102017130986A1 (de) * 2017-12-21 2019-06-27 Krones Ag Verfahren und Vorrichtung zum Expandieren von Behältnissen mit Bestimmung des Gasanteils

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DE2352926A1 (de) 1973-10-22 1975-04-24 Heidenreich & Harbeck Gmbh Verfahren und vorrichtung zum erwaermen eines werkstueckes aus kunststoff
DE4212583A1 (de) 1992-04-15 1993-10-21 Krupp Corpoplast Masch Vorrichtung zur Blasformung
DE4340291A1 (de) 1993-11-26 1995-06-01 Krupp Corpoplast Masch Mehrfachnutzung von Blasluft
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US10086554B2 (en) 2013-04-24 2018-10-02 Discma Ag Method and machine for manufacturing plastic containers

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