US20200070397A1 - Method and device for the production of filled containers from thermally conditioned preforms - Google Patents

Method and device for the production of filled containers from thermally conditioned preforms Download PDF

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Publication number
US20200070397A1
US20200070397A1 US16/495,695 US201816495695A US2020070397A1 US 20200070397 A1 US20200070397 A1 US 20200070397A1 US 201816495695 A US201816495695 A US 201816495695A US 2020070397 A1 US2020070397 A1 US 2020070397A1
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United States
Prior art keywords
preform
preforms
forming
mold
container
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Abandoned
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US16/495,695
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English (en)
Inventor
Benjamin Jaiser
Michael Linke
Deniz Ulutürk
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KHS GmbH
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KHS Corpoplast GmbH
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Publication of US20200070397A1 publication Critical patent/US20200070397A1/en
Assigned to KHS CORPOPLAST GMBH reassignment KHS CORPOPLAST GMBH ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: JAISER, Benjamin, LINKE, MICHAEL, ULUTÜRK, Deniz
Assigned to KHS GMBH reassignment KHS GMBH MERGER AND CHANGE OF NAME (SEE DOCUMENT FOR DETAILS). Assignors: KHS CORPOPLAST GMBH, KHS GMBH
Assigned to KHS GMBH reassignment KHS GMBH MERGER (SEE DOCUMENT FOR DETAILS). Assignors: KHS CORPOPLAST GMBH
Abandoned legal-status Critical Current

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    • 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
    • B29C49/6409—Thermal conditioning of preforms
    • B29C49/6436—Thermal conditioning of preforms characterised by temperature differential
    • 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
    • B29C49/42—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
    • 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
    • B29C49/6409—Thermal conditioning of preforms
    • 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
    • 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
    • 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
    • B29C2949/00—Indexing scheme relating to blow-moulding
    • B29C2949/07—Preforms or parisons characterised by their configuration
    • B29C2949/0715—Preforms or parisons characterised by their configuration the preform having one end closed
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B29C49/02—Combined blow-moulding and manufacture of the preform or the parison
    • B29C49/06—Injection blow-moulding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B29C49/28—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
    • B29C49/64—Heating or cooling preforms, parisons or blown articles
    • B29C49/6409—Thermal conditioning of preforms
    • B29C49/6436—Thermal conditioning of preforms characterised by temperature differential
    • B29C49/6458—Thermal conditioning of preforms characterised by temperature differential tangentially, i.e. along circumference
    • 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
    • B29C49/6835—Ovens specially adapted for heating preforms or parisons using reflectors
    • 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
    • B29C49/78—Measuring, controlling or regulating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/712—Containers; Packaging elements or accessories, Packages
    • B29L2031/7158—Bottles

Definitions

  • the invention relates to a method for producing containers filled with a liquid content from thermally conditioned preforms made from a thermoplastic material according to the preamble of claim 1 and a device for producing containers filled with a liquid content from temperature-conditioned preforms made of a thermoplastic material according to the preamble of claim 7 .
  • a blow molding machine has a heating device for temperature control and/or thermal conditioning of the preforms as well as a blowing device with at least one blowing station, in which area the previously temperature-conditioned preform is expanded into a container.
  • the expansion takes place with the help of a compressed gas (pressurized air) as a pressure medium, which is introduced into the preform to be expanded with a forming pressure.
  • a compressed gas pressurized air
  • thermo conditioning here is understood to mean that the preform is heated to a temperature suitable for blow molding and optionally a temperature profile is imparted to the preform in the longitudinal direction and/or in the circumferential direction.
  • the blow molding of containers made from preforms with the additional use of a stretching rod is likewise known.
  • the containers produced by means of blow molding are fed to a downstream filling device and filled with the intended product or content here.
  • a separate blow molding machine and a separate filling machine are used.
  • the simultaneous forming and filling of a container from a preform takes place in a forming station, which has, inter alia, a multipart mold.
  • the multipart structure of the mold is required in order to insert a preform into the mold and to remove the completely formed and filled container from the mold after completion of the forming and filling process.
  • the multipart mold in this case is arranged in the forming station and designed such that the mold can have a closed state and an open state.
  • the multipart mold In the closed state, the multipart mold encloses an inner cavity and, in the closed state, the multipart mold forms an inner wall of the mold, against which the preform expands in the closed state by supplying the liquid content into the preform at a pressure and into the container bubble resulting from the preform until the final container form is obtained, wherein this forming process is preferably supported, at least for a time, by a stretching rod, in which said stretching rod is inserted into the preform against the closed base of the preform.
  • the stretching rod has the task of stretching the preform in the axial direction and guiding the expansion thereof, at least for a time.
  • the forming stations are cyclically or periodically fed a preform, and completely formed containers are removed from the mold cyclically or periodically.
  • cyclically working machines with multiple forming stations or also machines functioning according to the rotation principle with continuously circulating working wheels on which multiple forming stations are arranged circumferentially spaced apart and at a radial distance from an axis of rotation of the working wheel.
  • the invention relates to these machines of the rotational type.
  • the present invention relates to such a particularity and such a problem which occurs with machines functioning according to the rotation principle.
  • Centrifugal forces due to the introduction of a gas as a pressure medium during container forming have not played any significant role until now; thus, the centrifugal force is significantly more strongly pronounced during the production of the container due to the introduction of a pressurized liquid, because the introduced liquid has a much greater mass than a pressurized gas and is thus pressed outward with more force.
  • this has the consequence that the wall area of the preform, which is lying radially outward, and/or the developing container bubble is cooled more strongly by the filled content.
  • it has been determined that the preform will make contact radially outward on the inner wall of the mold earlier.
  • the object of the present invention is to provide a method and a device for the production of filled containers from temperature-conditioned preforms, which solve the previously mentioned problem with high forming and filling rates in addition.
  • a compensating device should be designed as a temperature control device in order to impart a compensating temperature profile to the preform, wherein said temperature profile is designed in its symmetry and in its size to compensate for the previously described thermal consequences of the rotational movement of the containers and of the forming fluid filled therein.
  • the compensating device in the form of the temperature control device is designed to impart a temperature profile to the preform in the circumferential direction thereof, which is not point-symmetrical in relation to the longitudinal axis of the preform, wherein this symmetrical observation naturally relates to a section perpendicular to said longitudinal axis of the preform; thus, the temperature distribution is considered in the circumferential direction in this sectional plane and thus generates a thermally differentiated partial circumferential region in the preform.
  • the preform is then inserted into the mold at such an alignment that the thermally differentiated partial circumferential region is facing in the radial direction of the rotating circumferential working wheel.
  • a suitable temperature profile to be imparted can be, e.g., empirically determined by means of a few tests, e.g. in which the material distribution, e.g. measured by means of wall thicknesses, is determined in the circumferential direction of the container with container production without compensation and with the specified compensating temperature profiles. It is also possible to adjust and/or readjust the compensating temperature profile by means of a control and/or regulation and by measuring wall thicknesses in ongoing operation.
  • a compensating device is provided in the device, which, as previously explained with respect to method claim 1 , supports the compensation of the thermal consequences and which has a temperature control device.
  • the temperature control device is designed and configured using control engineering for production of the aforementioned compensating temperature profile in the preform, and the compensating device furthermore has a preform alignment device for the aligned insertion of the temperature-profiled preform in a mold of a forming station.
  • the temperature control device in this case is designed and configured to impart a temperature profile to the preform, which is not point-symmetrical in relation to the longitudinal axis of the preform, in order to create a thermally differentiated partial circumferential region in the preform.
  • the symmetrical observation relates to a section perpendicular to the longitudinal axis of the preform; thus, the temperature distribution is considered in the circumferential direction in this sectional plane.
  • the preform alignment device is, in turn, designed and configured to insert the preform into the mold with such an alignment that the thermally differentiated partial circumferential region is facing in the radial direction.
  • the goal of the previously described device as well as the previously described method in this case is to offset the early and asymmetrical contact of a partial circumferential region of the container bubble with the thermal effect occurring at the inner wall of the mold due to a preceding corresponding and compensating thermal differentiation of a partial circumferential region of the preform.
  • the described and claimed compensating thermal differentiation of the preforms is a supplement to the known temperature conditioning; optionally, the known preferential heating is also a supplement to this.
  • the previously described thermal consequences of the centrifugal force depend on whether the preform and/or the container bubble developing therefrom or whether the inner wall of the mold is at a higher temperature. If the inner wall of the mold is, e.g., colder than the preform and/or the container bubble, the thermal consequences would be an earlier and stronger cooling of the container bubble in its region lying outward radially and initially making contact with the inner wall of the mold. On the other hand, if the inner wall of the mold is maintained at a higher temperature than the container bubble, the thermal consequences would be a heating of the container bubble in said region lying outward radially.
  • the cooling or heating occurring due to the asymmetrical contact of the container bubble with the inner wall of the mold would be offset by means of the suitable prior heating or cooling measures on the preform. Compensation of cooling of the container bubble in its region lying outward radially could exist, e.g., from a targeted heating of the preform in this region or from a targeted cooling of the remaining regions. It is also possible to provide said targeted heating of a region and the targeted cooling of the remaining region simultaneously.
  • the thermally differentiated partial circumferential region is heated more strongly than the remaining circumferential regions of the preform.
  • the targeted heating of a partial circumferential region is already known to one skilled in the art from the technical area of so-called “preferential heating,” however, not in the symmetry according to the claim, and one skilled in the art can thus resort to the known technology and known heating mechanisms.
  • the targeted heating is possible, e.g., by supplying heating capacity by means of IR or NIR radiation. In doing so, this refers to the absorption of radiation which occurs over the entire thickness of the wall and thus throughout the entire wall volume.
  • a quicker and more direct input of thermal energy is advantageous, e.g., as compared to blowing with a cooling medium, whereby initially only the surface being blown at would be cooled, and the cooling throughout the volume would then take place by means of slower thermal processes.
  • the thermally differentiated partial circumferential region is facing radially outward after insertion of the preform into the mold of a forming station.
  • the compensating temperature profile is thereby simpler to adjust and to determine, because there is a direct geometric association between the thermally differentiated region and the region initially making contact with the inner wall of the mold.
  • the area initially making contact with the inner wall of the mold would also thereby be the thermally differentiated region.
  • the thermal consequences of the centrifugal force are dependent on the circumferential speed of the working wheel. For this reason, it is advantageous both for the device and for the method when the compensation of the thermal consequences is implemented dependent on the circumferential speed in that the temperature profile imparted to the preform by the compensating device is selected or regulated and/or controlled as a function of the circumferential speed of the working wheel.
  • the imparting of the compensating temperature profile explained in the previous paragraphs to the preforms, e.g., between the heating device and the forming station or between the infeed region into the forming and filling machine and the heating device, e.g. on a transfer wheel arranged in between.
  • the temperature control device according to the claim could be arranged there, e.g., for creating the compensating temperature profile.
  • the imparting of the compensating temperature profile takes place in the heating zone by means of the heating device for the preforms.
  • the temperature control device according to the invention would thus be arranged in the heating zone.
  • the preform During pass-through of the heating device, the preform would obtain both the temperature conditioning for the forming known in the prior art as well as the imparting of a temperature profile in the circumferential direction according to the invention for the compensation of the thermal consequences of the centrifugal force, namely the thermal differentiation of a circumferential region.
  • the heating mechanisms used for temperature conditioning could thereby also optionally be used for creating the compensation temperature profile.
  • the control and/or the regulation of the known heating mechanisms must be modified or optionally the preform would have to be moved differently than previously known, e.g., during pass-through of the heating zone.
  • the entire temperature profile of the preform upon exiting the heating zone would then basically be the superimposing of the known profile based on the common temperature conditioning (optionally with preferential heating) plus the temperature profile which is imparted to the preform for the purposes of the compensation.
  • the partial circumferential region initially making contact with the inner wall of the mold will have a partial circumferential angle ⁇ of less than 180°.
  • the described compensation by means of targeted imparting of a temperature profile to the preform in its circumferential direction has a certain similarity to the known area of preferential heating, with this being understood as generally the nonuniform temperature control of preforms in the circumferential direction thereof.
  • preferential heating such type of nonuniform temperature control with more strongly heated circumferential regions and with less strongly heated circumferential regions is applied when containers, the cross-section thereof deviating from a circular shape, are to be produced from the preforms.
  • the deviation may exist, for example, in that the containers are to be produced with an oval cross-section or, for example, with a triangular or rectangular cross-section.
  • the temperature profile imparted to the preform within the scope of the preferential heating in this case follows the symmetry of the container to be produced, is point-symmetrical with respect to the longitudinal axis of the preform in this case, and does not support the compensation of thermal effects according to the invention which are due to and specific for the hydraulic forming of preforms on machines of a rotating design by means of the introduction of a pressurized liquid forming fluid into a preform.
  • All of the non-generic documents regarding the prior art addressed in the following relate to the blow-molding production of containers from preforms by means of the introduction of a pressurized gaseous forming fluid into a preform.
  • WO 97/32713 discloses such prior art with an incrementally functioning rotational drive for the preforms.
  • U.S. Pat. No. 5,853,775 discloses two heating sections with a likewise incrementally circulating transport chain with a plurality of chain links, in the form of transport mandrels, bearing preforms. Homogenous heating of the preforms initially takes place in a first heating station and, in a second heating station opposite the first station, circumferentially profiled heating of the preforms takes place. In both heating stations, the preforms are rotated by means of a chain assigned to only the respective heating station.
  • DE 10 2007 016 027 A1 teaches a device for preferential heating, in which a rotational movement of the preforms is created by an extruded profile, which interacts with a gear wheel of the transport means, which carries the preforms through the heating zone and which, together with other transport means, is connected to a circulating transport chain.
  • the extruded profile circulates around the heating zone spaced apart from the transport chain and intermeshes with the gear wheel of the transport means. In doing so, the extruded profile is driven at a constant or varying circumferential speed.
  • a significant difference compared to the preferential heating known in the prior art in this case is that the temperature profile according to the invention compensating for the influence of centrifugal force in the circumferential direction of the preform is independent of the symmetry of the container to be produced.
  • the symmetry of the temperature profile imparted to the preform in the circumferential direction follows the symmetry of the bottle to be produced, while the compensating temperature profile according to the invention in the circumferential direction may deviate from the symmetry of the container to be produced and normally does deviate therefrom.
  • the method according to the invention and the device according to the invention lead to a non-point-symmetrical circumferential temperature profile and thus to a thermal differentiation of a circumferential region of the preform.
  • FIG. 1 a highly schematized representation of a forming and filling device
  • FIG. 2 a longitudinal section through a mold of a forming station, in which a preform is stretched and expanded, with a developing container bubble;
  • FIG. 3 a a first exemplary embodiment of a temperature control device according to the invention
  • FIG. 3 b a second exemplary embodiment of a temperature control device according to the invention.
  • FIG. 4 a sketch related to a further exemplary embodiment of the present invention with a preform alignment device in a top view;
  • FIG. 5 a side view of a further exemplary embodiment of the invention.
  • FIGS. 6 a , 6 b enlarged views of the exemplary embodiment in FIG. 5 in the region of the alignment device for the preforms;
  • FIG. 7 a detailed view from FIG. 4 in the region of the head wheel for the alignment device therein;
  • FIG. 8 perspective views of the details from FIG. 7 ;
  • FIG. 9 sectional views from above of the subject matter in the left half of the picture from FIG. 8 .
  • FIG. 1 The structure of a combined forming and filling machine 10 essentially known from the prior art is shown in FIG. 1 .
  • the representation shows the preferred design of such a filling device 10 in the form of a rotating machine with a rotating working wheel 110 supporting forming stations and/or forming and filling stations 16 .
  • Schematically represented preforms 14 are continuously fed to a heating device 116 by an infeed device 112 with use of a transfer wheel 114 .
  • the preforms 14 can be transported depending on the application, for example, with their outlet sections 22 upward in the vertical direction or downward in the vertical direction.
  • the heating device 116 is equipped, for example, with heating mechanisms 118 , which are arranged along a transport mechanism 120 for forming the heating zone.
  • a transport mechanism 120 for forming the heating zone.
  • a transport mechanism 120 for example, a circulating chain with transport mandrels for retaining the preforms 14 can be used as a transport mechanism 120 .
  • IR radiators or light-emitting diodes (LEDs) or NIR radiators are suitable as heating mechanisms 118 . Because such heating mechanisms are known in various forms in the prior art and the design details of the heating mechanism are not essential for the present invention, a more detailed description can be omitted and reference can be made to the prior art, particularly to the prior art related to heating mechanisms of mold blowing and stretch mold blowing machines.
  • the preforms 14 are transferred by a transfer wheel 122 to a working wheel 110 , which is arranged so as to rotate, i.e. can be circumferentially driven about a vertical machine axis MA, and/or to forming and filling stations 16 , which are arranged on the working wheel 110 distributed around the circumference.
  • the working wheel 110 is equipped with a plurality of such forming and filling station 16 , in the region of which both forming of the preforms 14 into the schematically shown containers 12 as well as filling of the containers 12 with the intended content take place.
  • the forming of each container 12 in this case takes place simultaneously with the filling, wherein the content serves as a pressure medium during forming.
  • the containers 12 are taken from the working wheel 110 by a removal wheel 124 , further transported, and supplied to an output zone 126 .
  • the working wheel 110 circulates continuously at a desired circumferential speed during production operation. During a revolution, the insertion of a preform 14 into a forming and filling station 16 , the expansion of the preform 14 into a container 12 including filling with a content and optionally including stretching, in the event a stretching rod is provided, and the removal of the container 12 from the forming and filling station 16 take place.
  • FIG. 1 it is further optionally provided to feed schematically shown caps 130 to the working wheel 110 by means of an input mechanism 128 . It is hereby also possible to implement a closing of the container 12 while already on the working wheel 110 and to handle completely formed, filled, and closed containers 12 using the removal device 124 .
  • thermoplastic materials can be used as the material for the preforms 14 .
  • examples include polyethylene terephthalate (PET), polyethylene (PE), polyethylene terephtalate (PEN), or polypropylene (PP).
  • PET polyethylene terephthalate
  • PE polyethylene
  • PEN polyethylene
  • PP polypropylene
  • the dimensions as well as the weight of the preforms 14 are adapted to the size, the weight, and/or the shape of the containers 12 to be produced.
  • a plurality of electrical and electronic components are typically arranged in the region of the heating device 116 .
  • the heating mechanisms 118 are provided with moisture-sensitive reflectors. Because a filling and forming of the container 12 takes place in the region of the working wheel 110 while using the liquid content, it should be ensured that unintentional entry of moisture is prevented in the region of the heating device 116 to prevent electrical problems. This can take place, for example, by means of a partition mechanism 132 , which at least offers spray protection.
  • the preforms 14 and/or the containers 12 are preferably handled using tongs and/or the outlet section 22 is handled, at least in areas, by clamping mandrels or dowels impinging from the interior or exterior. Such handling means are likewise well-known from the prior art.
  • FIG. 2 also shows the preform 14 in dashes and a developing container bubble 15 schematically.
  • a stretching of the preform 14 in the longitudinal direction X thereof is provided by means of a stretching rod 11 .
  • the mold 13 of the forming station 16 is in a closed state and the stretching rod 11 is moving until it reaches its lower end position.
  • the stretching of the preform 14 in the axial direction X is complete, while the expansion transverse to the axial direction X is not yet complete in reference to the container bubble 15 .
  • the mold 13 which is formed from a mold base 4 and two halves of the mold sides, 5 and 6 , encloses an inner cavity, which is terminated by the inner wall of the mold 7 , against which the preform 14 and/or the developing container bubble 15 expands through the introduction of the content 3 under forming pressure.
  • the pressurized feeding of the content 3 takes place by means of a forming and filling head 8 , which has been lowered so as to seal the outlet section 22 of the preform 14 and by means of which the content 3 is introduced, e.g., through the stretching rod 11 and/or passed the stretching rod 11 .
  • FIG. 3 a shows a horizontal section through a preform 14 arranged in the region of a temperature-profile-creation device 36 .
  • the temperature-profile-creation device 36 has a radiant heater 37 , e.g. an IR or NIR radiator, as well as a reflector 38 .
  • a circumference of the preform 14 has been divided into four angle ranges 14 a, 14 b, 14 c, 14 d.
  • the temperature control of the angle ranges 14 a, 14 b, 14 c, 14 d should take place such that one of these ranges is thermally differentiated, thus obtains, e.g., a higher temperature than the remaining ranges.
  • angle range 14 a with angle ⁇ of the preform 14 is provided with a higher temperature than angle ranges 14 b, 14 c, 14 d after impact with the heat radiation.
  • the size of the respective angle ranges 14 a, 14 b, 14 c, 14 d is selected at 90° for each in the example shown and can also be selected to deviate therefrom.
  • the temperature-profile-creation device 36 can be arranged, e.g., in the heating device 116 , e.g. at the end of the heating zone, and resemble the heating mechanisms 118 provided in the heating device 116 .
  • FIG. 3 b shows another option for thermal differentiation of a circumferential region 14 a of a preform 14 .
  • a pre-tempered preform 14 in this case is moved along a cooling nozzle 53 in a non-rotatable manner, from which a cooling gas flows onto the circumferential region 14 d.
  • Air can be used for example.
  • the statements related to FIG. 3 a regarding rotation of the preform 14 and arrangement of the cooling nozzle 53 in the heating device 116 apply here in a similar manner.
  • FIG. 4 shows a heating device 116 essentially known from the prior art with a temperature-profile-creation device 36 according to the invention for creating a thermally differentiated circumferential region 14 a of a preform 14 .
  • the circulating transport chain 50 composed of multiple transport means 33 , is indicated by individual chain links 33 .
  • This chain 50 is deflected via deflection wheels, which are not shown in greater detail, and has a curved region 41 in the area of this deflection and linear regions 42 lying in between.
  • the preform is inserted into the heating device 116 in the region of the head wheel indicated by reference 34 .
  • FIG. 4 does not show the corresponding transfer wheels for transforming preforms to the heating device 116 and for removing the temperature-controlled preforms after passing completely through the heating device 116 by means of an almost complete circulation cycle of the transport chain 50 .
  • Heating mechanisms 118 are provided in the linear region 42 on the left in FIG. 4 .
  • Typical heating mechanisms 118 of this type are constructed, for example, as heater boxes with radiant heaters housed therein. Normally, multiple essentially horizontally extending linear-shaped heating pipes emitting heat radiation are arranged in this heating mechanism 118 , with the heating pipes being arranged distributed about the length of the preform.
  • These radiant heaters are normally arranged on one side of the heater box and a reflector is normally arranged on an opposite side of the heater box, the reflector being designed with high reflection capacity for the heat radiation used.
  • the preforms 14 are guided through by the transport means 33 in the region formed between the radiant heaters and the reflector.
  • the preforms 14 are moved continuously and continuously rotated about their longitudinal axis in order to ensure the most uniform heating possible about the circumference of the preforms 14 .
  • Uniform temperature control can also take place in the axial direction of the preform 14 .
  • FIG. 4 shows five heater boxes 118 arranged next to one another, in which this uniform heating of the preforms 14 in the circumferential direction takes place, wherein this number can be selected as desired.
  • heater boxes 118 , 36 located on the opposite linear region 42 of the heating zone, through the heating device 116 .
  • the two heater boxes 118 the preforms 14 initially pass through on this section of the heating zone are structurally similar to the previously described heater boxes 118 for the uniform circumferential temperature control of the preforms 14 .
  • multiple radiant heaters are typically arranged on a first side of the heater box 36 . However, there is optionally no reflector arranged on the opposite side of the heater box 36 .
  • a desired temperature profile can be created in the circumferential direction, namely a circumferential region with an excellent temperature, at present with a higher temperature, namely the circumferential region facing the radiant heaters.
  • the remaining circumferential regions have a lower temperature, namely the circumferential regions of the preform 14 facing in the direction of movement and opposite the direction of movement and the circumferential region facing away from the radiant heater.
  • FIG. 4 further shows the arrangement of an engagement mechanism 45 , which, in the exemplary embodiment shown, is designed as a circumferentially guided engagement belt 46 ′.
  • the upper deflection region 49 of the engagement belt 46 ′ is located between the heating boxes 118 for the uniform circumferential temperature control of the preforms 14 and those heating boxes 36 for the thermal differentiation of a circumferential region. To this end, one feed-in position, for example, is unoccupied for a heater box.
  • the lower deflection roller 48 for the engagement belt 46 ′ is arranged in the region of the head wheel 34 . In particular, this deflection roller 48 is designed such that the engagement belt 46 ′ partially follows the curved region 41 around the head wheel 34 .
  • this deflection roller 48 is particularly formed so as to shift in a manner such that the engagement belt 46 ′ follows the curved region 41 of the head wheel over a changing course. Details regarding this are shown in FIG. 7 and explained in greater detail in conjunction with FIG. 7 , particularly the advantages thereby achieved.
  • the engagement belt 46 ′ has a belt drive 47 in the exemplary embodiment shown.
  • the engagement belt 46 ′ is designed in this case such that an engagement in the transport means 33 takes place such that there is no rotation about the longitudinal axis of the preforms when passing through the heater boxes 36 designed for thermal differentiation.
  • the engagement belt 46 ′ runs at the same speed as the transport chain 50 .
  • a synchronization it is possible, for example, for a synchronization to take place between the transport chain 50 and the engagement belt 46 ′.
  • the engagement belt 46 ′ for example, to not have its own drive but rather, for example, carriers, which engage the transport chain 50 and are then carried along by the transport chain 50 . In this manner, the speed of the transport chain 50 and of the engagement belt 46 ′ can be evenly maintained in a simple manner.
  • FIG. 4 further shows a so-called mandrel rotary belt 51 , which ensures the uniform rotation of the preforms 14 about their longitudinal axis when passing through the heater boxes 118 for uniform circumferential temperature control.
  • This mandrel rotary belt 51 is guided by the transport chain 50 externally; in alternative embodiment variations, it could also be guided internally, and extends, at a slight distance, into the linear regions 42 of the heating device 116 , parallel to the transport chain 50 .
  • This mandrel rotary belt 51 extends completely around the transport chain 50 and is a first engagement mechanism.
  • Such a mandrel rotary belt 51 is already known in the prior art and interacts, for example, with a gear wheel 52 , which is arranged at the respective transport means 33 and rolls off the mandrel rotary belt 51 .
  • the circumferential speed of the mandrel rotary belt 51 is selected in a ratio to the circumferential speed of the transport chain 50 such that a relative speed exists so that the transport means 33 bearing the preform 14 is placed into rotation about its own axis due to the unwinding of the gear wheel 52 on the mandrel rotary belt 51 .
  • this mandrel rotary belt 51 is guided away from the transport chain 50 and the mandrel rotary belt 51 is thereby out of engagement with the gear wheels 52 of the transport means 33 .
  • This guiding away is provided so that the second engagement mechanism 45 can engage the gear wheel 52 without the mandrel rotary belt 51 showing a fault.
  • the mandrel rotary belt 51 is guided externally at the second engagement mechanism 45 and at its deflection and guide rollers 48 , 49 .
  • the mandrel rotary belt 51 again extends close to the transport chain 50 and again engages with the gear wheels 52 of the transport means 33 formed, e.g. as transport mandrels, in the left linear region 42 of the heating device 116 .
  • the enlarged cutout from FIG. 4 shown in FIG. 7 shows the engagement belt 46 ′ in its extension in the region of the head wheel 34 .
  • the engagement belt 46 ′ e.g. a toothed belt, engages with the gear wheel 52 of the transport mandrels of the transport chain 50 , wherein other transport means 33 could also form the chain links of the transport chain 50 as transport mandrels.
  • This engagement is continued in a curved region 41 of the transport chain 50 , and the engagement belt 46 ′ extends over a partial circumference at a corresponding angle a in this curved region around the head wheel 34 , before the belt 46 ′ lifts off of the gear wheels 52 and starts its return.
  • the engagement belt 46 ′ and the transport chain 50 are at the same speed and, due to the parallel arrangement of the two belt and/or chain extensions, the preform 14 can be maintained in this manner in a fixed circumferential angle position.
  • the transport chain 50 spreads and the engagement belt 46 ′ and the transport chain 50 run at a different angular velocity on different radii r 1 , r 2 . For this reason, a rotation of the transport means 33 and of the preform 14 being thereby retained takes place in this curved region 41 of the head wheel 34 .
  • the angle of rotation is dependent, on one hand, on the ratio of the rotation radii of the transport chain 50 and of the engagement belt 46 ′ and, on the other hand, on the angle a. Due to movement of the respective position in the curved region 41 , at which the engagement belt 46 ′ is placed out of engagement with the gear wheel 52 of the transport mandrel 33 , the rotation of the preform 14 and/or of the transport mandrel 33 can be adjusted specifically. For the purposes of this adjustment, a deflection means 48 of the engagement belt 46 ′ is implemented in this region 41 in an adjustable manner in order to specifically modify the angle shown in FIG. 7 .
  • the targeted rotation of the preform 14 and/or of the transport mandrel 33 is desired so that the preform 14 is inserted into the forming station 16 at a certain alignment so that, thus, the thermally differentiated circumferential region of the preform 14 is at a certain orientation, for example, upon the transfer to the working wheel 110 and into the molds of the forming stations, e.g. so that the differentiated circumferential region is lying outward radially or inward radially.
  • the previously described design is an example of a preform alignment device according to the invention. The adjustment of such a desired alignment of the preform 14 is supported by the targeted adjustment of the angle a in FIG. 7 by means of shifting of a deflection roller 48 of the engagement belt 46 .
  • the engagement belt described in reference to FIGS. 4 and 7 could also be designed, e.g., as an engagement chain. This chain would only have to be guided similarly to the engagement belt and engage the engagement body and/or the gear wheel 52 . Other engagement mechanisms with the same functionality are also possible.
  • An example of an engagement chain which has a significantly more complex structure in comparison to the previously mentioned engagement chain according to the exemplary embodiment in FIGS. 4 and 7 and which optionally provides further functionalities, is explained in the following, wherein, in a further variation from the previous exemplary embodiment, it does not have its own belt/chain drive and/or generally does not have its own drive for the engagement mechanism but rather the following exemplary embodiment provides for carrying of the engagement mechanism by means of the conveyor chain. This should also be considered an option which can be implemented in the previous exemplary embodiment.
  • a separate drive can be provided for the engagement mechanism instead of a carrier and/or instead of a carrying engagement in the conveyor chain in any of the exemplary embodiments.
  • FIG. 5 shows a partial cutout and a perspective side view of a second example of a second engagement mechanism 45 ′.
  • This second engagement mechanism 45 ′ is substantially designed as a circulating chain with multiple chain links.
  • the first engagement mechanism 51 is also formed here in the form of a circulating toothed belt, namely as a mandrel rotary belt.
  • a heater box 118 is shown, which is provided for the uniform temperature control of a preform 14 in the circumferential direction.
  • Two heater boxes 36 are shown in the left region of FIG. 5 , which are formed for the thermal differentiation of a circumferential region of a preform 14 .
  • the second engagement mechanism 45 ′ is arranged in the region in between, which remains free due to the omission, for example, of a heater box.
  • This engagement mechanism 45 ′ consists of an upper component 53 and a lower component 54 .
  • the mandrel rotary belt 51 is guided away from the transport chain 50 between these components 53 , 54 and extends on the exterior along the heater boxes 36 .
  • This selected division of the engagement mechanism into two sections is purely optional and enables, e.g., the provision of further functions in this region of the heating device 116 .
  • Such further functions may be, e.g., the implementation of sterilization by means of a sterilization mechanism or, e.g., the provision of an inspection device.
  • the upper component 53 and the lower component 54 of the second engagement mechanism 45 ′ are linked to a coordinated rotational movement, which is not shown. It is also conceivable here to provide both components 53 , 54 with their own drives, which function in a manner coordinated with one another, in order to achieve a uniform and synchronized rotational movement. However, it is also conceivable for only one of the two components 53 , 54 to have a drive and, for example, the other component to be driven by means of a coupling motion. However, it is also possible for one or both components to engage the transport chain 50 by means of carriers and be carried along by the transport chain 50 . This is shown in FIGS. 6 a and 6 b by means of example.
  • This embodiment variant has the advantage that the individual chain links of the engagement chain 45 ′ automatically run at the same speed as the links of the transport chain.
  • the preform 14 can be guided with a fixed orientation in the circumferential direction by means of the heater box 36 formed for the thermal differentiation of a circumferential region. Because the mandrel rotary belt 51 is guided out of engagement with the transport mandrel 33 in the region of the second engagement mechanism 45 ′, it is sufficient to end and to stop the mandrel rotation in this region.
  • the carrier 44 has an engagement element, e.g. a blocking element, which engages the rotary drive body 52 of the transport mandrel 33 in a manner to prevent a rotation, as soon as the carrier 44 is placed in carrying engagement with the transport chain 50 in a cam-controlled manner.
  • the blocking elements would then be moved with the carriers and, e.g., simultaneously placed in engagement and out of engagement. To this end however, the lift-off of the mandrel rotary belt 51 shown in FIG. 6 a must take place, e.g., earlier than as shown there.
  • an engagement element of the engagement mechanism 45 ′ can be arranged on each chain link, separate from the carrier 44 but in a similar manner to the carrier 44 , with the engagement element likewise being placed in engagement and out of engagement, in a cam-controlled manner, with the rotary drive body 52 of the transport mandrel 33 .
  • This can take place at a different time than the carrier engagement with the conveyor chain 50 .
  • This would also make it possible to select the number of carriers 44 to be different than the number of engagement elements. It is not necessary for each chain link to have a carrier; this is purely optional. It is only necessary that a sufficient number of carriers be arranged distributed over the chain length in order to ensure continuous carriage. To this end however, 3 or 4 uniformly distributed carriers would be sufficient.
  • FIGS. 6 a and 6 b show how the carriers 44 discussed in the previous paragraph can be formed in a special embodiment, with omission of the upper component.
  • the lower chain unit 54 has carriers 44 that can be moved in the radial direction, which are held, e.g., spring-loaded in a position pulled radially inward. Upon reaching an external control curve 43 , the carriers 44 are pressed radially outward and reach traction engagement with the transport means 33 of the transport chain.
  • Such a solution is considered to be advantageous, because the carriers 44 cannot simply swivel into the linearly moved transport chain 50 .
  • the engagement of the carriers 44 can take place, e.g., only in the linear circumferential region 42 .
  • FIG. 8 shows a further detail of a second engagement mechanism 45 ′′.
  • This engagement mechanism 45 ′′ consists of multiple engagement elements 63 , which are formed by an external control curve 56 in a cam-controlled manner. In a first region 57 of this control curve 56 , the engagement elements 63 are out of engagement with the gear wheel 52 of the transport mandrel 33 . In a second region 58 of the control curve 56 , a swivel lever 59 is actuated, which has inner toothing 60 and which drives a pinion 61 . The details regarding this are more easily seen in FIG. 9 . In particular, it can be seen that this pinion 61 sits on a common shaft 62 with a belt pulley segment 63 .
  • the swivel movement of the swivel lever 59 leads to a rotation of the pinion 61 .
  • the rotation of the pinion 61 is matched by the belt pulley segment 63 .
  • this belt pulley segment 63 is out of engagement with the gear wheel 52 of the transport mandrel 33 .
  • the swivel lever 59 swivels, the pinion 61 thereby rotates, and the belt pulley segment 63 thereby reaches engagement with the gear wheel 52 of the transport mandrel 33 . Retaining this position means that the gear wheel 52 is held, and the transport mandrel 33 and the preform 14 being held thereby are maintained in a non-rotatable manner.
  • This design further enables the transport mandrel 33 and the preform 14 being held thereby to be maintained not only in a non-rotatable manner but specifically to twist about a certain angle of rotation, namely when the swivel movement of the swivel lever 59 is designed such that the belt pulley segment 63 not only holds the gear wheel 52 in a certain position but rather the swivel lever 59 could be more strongly swiveled, for example, in a third region of the control curve 56 in that the pinion 61 thereby rotates even further and the belt pulley segment 63 thereby rotates even further such that, as a result of the comb-like engagement with the gear wheel 52 of the transport mandrel 33 , this gear wheel 52 and thus also the transport mandrel 33 is twisted about a certain angle.
  • This can be used, e.g., as a preform alignment device, because the preform 14 should be inserted into the forming station 16 in a certain alignment and must possibly have to be rotated
  • WO 2016/180510 A1 shows examples and mentions examples in the prior art, which are essentially suitable also as preform alignment devices for the present invention in order to align the thermally differentiated circumferential region of the preform in the desired manner for transfer to the forming stations. Reference is explicitly made with regard to this to the content of WO 2016/180510 A1 and to the content of the documents mentioned therein as the prior art.

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
US16/495,695 2017-11-30 2018-11-22 Method and device for the production of filled containers from thermally conditioned preforms Abandoned US20200070397A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102017011087.5 2017-11-30
DE102017011087.5A DE102017011087A1 (de) 2017-11-30 2017-11-30 Verfahren und Vorrichtung für die Herstellung von gefüllten Behältern aus temperaturkonditionierten Vorformlingen
PCT/EP2018/082169 WO2019105833A1 (de) 2017-11-30 2018-11-22 Verfahren und vorrichtung für die herstellung von gefüllten behältern aus temperaturkonditionierten vorformlingen

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US17/852,078 Active US11707877B2 (en) 2017-11-30 2022-06-28 Method for the production of filled containers from thermally conditioned preforms

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EP (1) EP3558630B1 (zh)
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US3892830A (en) 1972-04-10 1975-07-01 Phillips Petroleum Co Precise temperature adjustment of reheated parison preforms
DE2352926A1 (de) 1973-10-22 1975-04-24 Heidenreich & Harbeck Gmbh Verfahren und vorrichtung zum erwaermen eines werkstueckes aus kunststoff
DE3314106C2 (de) 1983-04-19 1986-07-24 C.F. Spiess & Sohn Kunststoffwerk GmbH & Co, 6719 Kleinkarlbach Vorrichtung zum Herstellen von Hohlkörpern aus warmformbarem Kunststoff
DE4212583A1 (de) 1992-04-15 1993-10-21 Krupp Corpoplast Masch Vorrichtung zur Blasformung
FR2703944B1 (fr) * 1993-04-15 1995-06-23 Sidel Sa Procédé et installation pour le traitement thermique du corps d'une préforme en matériau thermoplastique.
DE4340291A1 (de) 1993-11-26 1995-06-01 Krupp Corpoplast Masch Mehrfachnutzung von Blasluft
DE19608570A1 (de) 1996-03-06 1997-09-11 Krupp Corpoplast Masch Verfahren zur Temperierung von Vorformlingen sowie Vorrichtung zur Temperierung
US5853775A (en) 1997-12-05 1998-12-29 Electra Form, Inc. Non-Round container blow molding apparatus
US7914726B2 (en) 2006-04-13 2011-03-29 Amcor Limited Liquid or hydraulic blow molding
US8573964B2 (en) * 2006-04-13 2013-11-05 Amcor Limited Liquid or hydraulic blow molding
DE102007016027A1 (de) 2007-03-30 2008-10-16 Sig Technology Ag Verfahren und Vorrichtung zur Blasformung von Behältern
DE102010007541A1 (de) 2009-12-23 2011-06-30 KHS Corpoplast GmbH, 22145 Verfahren und Vorrichtung zur Herstellung von gefüllten Behältern
DE102010026166A1 (de) 2010-07-01 2012-01-05 Khs Corpoplast Gmbh Verfahren und Vorrichtung zum Sterilisieren sowie Vorrichtung zur Blasformung von Behältern
EP2983887B1 (en) * 2013-04-09 2016-11-09 Discma AG Extension device for the neck of a container formed in a machine for forming containers from preforms
DE102014004354A1 (de) * 2014-03-27 2015-10-01 Khs Corpoplast Gmbh Verfahren und Vorrichtung zum Herstellen eines mit Füllgut gefüllten Behälters
EP2930005B1 (en) * 2014-04-08 2017-06-07 Discma AG Rotary machine and method for hydraulic forming of shaped containers
DE102015005769A1 (de) 2015-05-08 2016-11-10 Henkel Ag & Co. Kgaa Verfahren zur inhomogenen Temperierung von Vorformlingen
DE102016004405B4 (de) * 2016-04-14 2019-02-14 Khs Corpoplast Gmbh Heizvorrichtung und Verfahren zur thermischen Konditionierung von für die Blasformung vorgesehenen Vorformlingen

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WO2019105833A1 (de) 2019-06-06
JP2020508904A (ja) 2020-03-26
US11707877B2 (en) 2023-07-25
CN110869185B (zh) 2021-05-25
US20220339850A1 (en) 2022-10-27
EP3558630B1 (de) 2020-07-01
JP6751821B2 (ja) 2020-09-09
DE102017011087A1 (de) 2019-06-06
CN110869185A (zh) 2020-03-06

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