WO2019115325A1 - Dispositif et procédé destinés au formage de préformes en plastique en récipients en plastique, comprenant la sortie tangentielle des récipients en plastique hors de la machine de moulage par soufflage - Google Patents

Dispositif et procédé destinés au formage de préformes en plastique en récipients en plastique, comprenant la sortie tangentielle des récipients en plastique hors de la machine de moulage par soufflage Download PDF

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Publication number
WO2019115325A1
WO2019115325A1 PCT/EP2018/083727 EP2018083727W WO2019115325A1 WO 2019115325 A1 WO2019115325 A1 WO 2019115325A1 EP 2018083727 W EP2018083727 W EP 2018083727W WO 2019115325 A1 WO2019115325 A1 WO 2019115325A1
Authority
WO
WIPO (PCT)
Prior art keywords
blow molding
molding machine
plastic containers
transport path
plastic
Prior art date
Application number
PCT/EP2018/083727
Other languages
German (de)
English (en)
Inventor
Andreas PENSE
Thomas Kitzinger
Christian Betz
Cora Hanesch
Andreas Vornehm
Dominik Meier
Dieter Finger
Original Assignee
Krones Ag
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Krones Ag filed Critical Krones Ag
Publication of WO2019115325A1 publication Critical patent/WO2019115325A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
    • B67B—APPLYING CLOSURE MEMBERS TO BOTTLES JARS, OR SIMILAR CONTAINERS; OPENING CLOSED CONTAINERS
    • B67B3/00—Closing bottles, jars or similar containers by applying caps
    • B67B3/20—Closing bottles, jars or similar containers by applying caps by applying and rotating preformed threaded caps
    • B67B3/204—Linear-type capping machines
    • B67B3/2053—Linear-type capping machines comprising capping heads
    • 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
    • B29C49/4205—Handling means, e.g. transfer, loading or discharging means
    • B29C49/42069—Means explicitly adapted for transporting blown 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
    • B29C49/46—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
    • B29C49/4273—Auxiliary operations after the blow-moulding operation not otherwise provided for
    • B29C49/428—Joining
    • B29C49/42802—Joining a closure or a sealing foil to the article or pincing the opening
    • 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
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B43/00—Forming, feeding, opening or setting-up containers or receptacles in association with packaging
    • B65B43/42—Feeding or positioning bags, boxes, or cartons in the distended, opened, or set-up state; Feeding preformed rigid containers, e.g. tins, capsules, glass tubes, glasses, to the packaging position; Locating containers or receptacles at the filling position; Supporting containers or receptacles during the filling operation
    • B65B43/54—Means for supporting containers or receptacles during the filling operation
    • B65B43/60—Means for supporting containers or receptacles during the filling operation rotatable

Definitions

  • the present invention relates to an apparatus and a method for transforming plastic preforms to plastic containers.
  • Such devices and methods have been known for a long time from the prior art.
  • the plastic preforms are usually heated within a heating device to a temperature necessary for the blow molding process and then fed to the blow molding machine.
  • the plastic preforms are usually reshaped within a blowing station by applying a flowable medium and in particular compressed air and by stretching with a stretching rod to plastic containers and in particular plastic bottles
  • the plastic preforms have also been filled simultaneously during the forming, with the plastic preforms being expanded with a liquid medium and, in particular, already with the liquid filling medium. Accordingly, in order to form a container from a preform with the aid of a liquid medium, the preforms heated by an oven are transferred into the forming station or blowing station with the aid of a transfer star with a division delay. After the container has been shaped inside the blow molding machine, which is in particular a rotary, and has been filled simultaneously with the liquid medium, the ferrous Taken, but still unsealed, container again via a transfer star with pitch from the blow molding machine removed and passed on a container transport.
  • the spilled over liquid could get into the blow mold or the blow molding machine, whereby they are contaminated and must be stopped due to a cleaning.
  • this over-spun liquid in the blow mold could also damage and even tear the next plastic preform during the forming process.
  • the present invention is therefore based on the object to provide a device and a method, with / in the case of the discharge of the finished molded and filled containers from the blow molding machine, a spillover of the liquid from the container or damage to the Container can be prevented.
  • the present invention is directed to a device for converting plastic preforms into plastic containers with a transport device which transports the plastic preforms along a predetermined transport path and with a blow molding machine which is arranged along the transport path and which has at least one forming station in which the plastic preforms can be deformed and simultaneously filled by applying a liquid medium to the plastic containers, wherein the plastic containers can be transported within the blow molding machine on an at least partially circular transport path.
  • the plastic containers are discharged from the blow molding machine substantially tangentially to the at least partially circular transport path of the blow molding machine and / or the plastic containers are removed from the blow molding machine on an at least partially linear transport path.
  • the term "at least partially linear” is understood to mean that the plastic containers are guided on a linear transport path in comparison with the circular transport path of the blow molding machine, and it could also be that the containers only run out of the blow molding machine tangentially to the circulation of the blow molding machine and then guided on a large radius of curvature.
  • the plastic containers are particularly preferably discharged tangentially from the blow molding machine and transported away on a linear transport path.
  • the discharge of the finished molded and filled container tangentially to the circulation of the blower "slosh optimized" over a defined curve or on a different plane than the inlet takes place to the direction of delivery, compared to the transport direction within the blow molding machine, not abruptly change.
  • the transition from the circular transport path of the blow molding machine , ie of R ßiasrad , on the linear transport path is a Klothoidische path.
  • the blow molding machine is particularly preferably a rotary machine, within which the plastic preforms are guided on a circular transport path.
  • a tangential discharge / discharge of the completely filled and formed containers takes place from a rotary machine or a straight-line transport path of the containers after a rotary machine.
  • the device according to the invention and also the method according to the invention therefore have the particular advantages that, when the molded and filled containers are removed from the blow molding machine, spilling and buckling of the containers is prevented, so that in particular a defined and predetermined filling level in the condition can be achieved.
  • this also a, compared to the prior art, gentler handling of the container is provided, this "gentler” removal also favors the prevention of kinking, so-called “Bückling effect", or damage the wall and the neck area of the containers favors.
  • the discharge from the blow molding machine can preferably also be effected by the transfer to a long stator, a transport star a conveyor chain or the like.
  • the device for forming plastic preforms into plastic containers also has a heating device which heats plastic preforms to a predetermined temperature and in particular to a temperature required for the subsequent forming process.
  • the heating means is preferably an oven known in the art having a plurality of heating elements, such as microwave heating means.
  • the heating device is preferably arranged upstream of the blow molding machine.
  • the device for forming plastic preforms into plastic containers is preferably a blow molding machine.
  • the flowable medium is preferably under pressure.
  • the device has a blowing nozzle, which can be applied sealingly to an opening of the plastic preforms in order to expand the plastic preforms with a liquid or gaseous medium.
  • a valve arrangement is also preferred provided, which controls the supply of the medium to the plastic preforms.
  • the device for converting plastic preforms into plastic containers is particularly preferably a form filling machine in which preferably the expansion of the container takes place by means of the product, so that a simultaneous filling and expansion of the container is carried out.
  • the blow molding machine or the form filling machine is preferably a stretch blow molding machine, which means that the preforms are stretched in the longitudinal direction before and / or during the expansion by means of a stretching rod.
  • the blowing stations each have stretching rods which can be inserted into the plastic preforms and stretch the plastic preforms in their longitudinal direction.
  • the stretch rods preferably have an electric drive.
  • a plurality of blowing stations or reforming stations is arranged on a common movable carrier. This carrier is in particular a rotatable carrier.
  • the blowing stations each have a blow molding device, which preferably form a cavity, within which the plastic preforms are expandable to the plastic containers.
  • blow molding devices are preferably designed in several parts and have two blow mold halves and a bottom mold.
  • these blow mold halves are detachably arranged on a mold carrier shell or on the blow mold carriers.
  • the blow mold carriers are pivotable relative to one another in order to open and close the blow molding devices.
  • the blow mold carrier on locking mechanisms to lock the mold halves against each other during the blowing process.
  • the blow molding machine or the carrier and the blow mold arrangements are arranged within a clean room which delimits the blow molding machine from an unsterile environment.
  • Drive devices for the closure, locking and / or opening of the blow molds are preferably arranged outside the clean room.
  • the blow molding devices are preferably transported within the clean room.
  • the clean room is preferably limited by several walls. Preference is given to the clean room thereby limited by at least one standing wall and a standing against this wall moving wall.
  • the cleanroom delimits the blow molds, in particular, from an unsterile environment.
  • the clean room is designed like a ring or torus around the blow molding stations or forming stations and / or the transport path of the plastic containers.
  • a capper is arranged, which applies a closure to the plastic containers.
  • the container is preferably closed, this preferably taking place during the linear movement or the linear transport of the plastic containers.
  • the container is therefore closed during this linear guide and then forwarded to subsequent machines. Before closing, in particular, it is not necessary to cool the container, so that the closing can be directly followed by the mold filling process.
  • the capper can be moved along with the plastic containers during the transport of the plastic containers.
  • the plastic containers are therefore advantageously closed during transport.
  • the closure is particularly preferably a screw cap or a snap closure (snap-on).
  • the screw cap has a thread, which can be screwed onto the mouth region of the container.
  • the transport means is selected from a group of transport means which includes transfer stars, pitch warp stars, conveyor belts, air transporters, chains, belts, long stators and the like.
  • the device has at least one holding device, which holds the plastic containers at a neck area at least during the forming and closing process.
  • This holding device is preferably a clamp which encloses the plastic containers in their neck area.
  • a neck region is understood to mean an area below the support ring of the plastic container or directly on the support ring.
  • Such holding of the plastic containers is also referred to as neck-handling.
  • the device has a plurality of such holding devices, wherein the holding devices are preferably moved with the containers.
  • the at least one retaining device can be guided circumferentially between the blow molding machine and a deflection wheel.
  • the holding devices are guided in a closed circuit within the device for forming plastic preforms into plastic containers.
  • the plastic preform and the holding device are supplied together to the blow molding machine and the plastic container and the holding device are also removed together again from the blow molding machine.
  • the holding device removes the plastic preform from the heating device and moves together with the preform to the blow molding machine and is then guided along with the finished molded and filled container along the linear transport path and the capper.
  • the holding device advantageously transfers the containers to a diverting device or removal device or to a downstream machine, such as a packaging machine or an inspection system, and then removes a new plastic preform from the heating device.
  • the container is therefore preferably kept in a holding device during the entire pass, from the exit of the oven until it is closed.
  • the holding devices are preferably guided on a kind of long stator.
  • a chain guide Caterpillar
  • the holding device could also be transferred together with the plastic container to the subsequent system, wherein the holding devices could then be fed again via a feed device of the device.
  • at least the forming and the closing process take place within a clean room, so that preferably at least the blow molding machine and the capper are arranged within a clean room.
  • the transport path of the holding devices also runs within a clean room.
  • the present invention is also directed to a method for converting plastic preforms to plastic containers, comprising a transport device which transports the plastic preforms along a predetermined transport path and with a blow molding machine which is arranged along the transport path and which has at least one forming station in which the plastic preforms are formed by applying a liquid medium to the plastic containers and filled at the same time, wherein the plastic containers are transported within the blow molding machine on an at least partially circular transport path.
  • the plastic containers are discharged from the blow molding machine essentially tangentially to the at least partially circular transport path of the blow molding machine and / or the plastic containers are removed on an at least partially linear transport path.
  • the plastic containers are also closed on the at least partially linear transport path.
  • the containers are thereby closed during the transport of the containers, so that the capper moves along the linear transport path with the plastic containers and in particular is moved with them.
  • the plastic containers are held at a neck area at least during the forming and closing operation.
  • a holding device removes the plastic preforms from a heating device, which heats the preforms to a predetermined temperature.
  • the container is held by this holding device during the entire passage, from the outlet of the heating device to the closure, wherein the holding device transfers the containers on a deflection wheel to a subsequent machine, such as an inspection system or a packaging machine.
  • FIG. 1 shows a first embodiment of a device according to the invention for reshaping of plastic preforms into plastic containers
  • FIG. 1 shows a first embodiment of a device 1 according to the invention for reshaping plastic preforms 10 into plastic containers 20.
  • the plastic preforms 10 are heated to a predetermined temperature within a heating device 3, which has a plurality of heating elements, and subsequently Passing means of a transport device 2 to a blow molding machine 5.
  • the blow molding machine 5 has at least one and preferably a plurality of transformation stations 8. Within the blow molding machine 5 or within the forming stations 8, the plastic preforms 10 are formed into plastic containers 20 and also filled at the same time, these being guided during the forming and filling along a circular transport path 6.
  • the plastic containers 20 are removed from the blow molding machine 5 tangentially to the circular transport path 6 of the blow molding machine 5, in order to prevent spilling over of the liquid arranged in the container. the.
  • the subsequent further transport of the containers takes place on a linear transport path 7.
  • the reference numeral 25 denotes a closure, which is preferably also applied to the containers 20 during the linear transport of the containers along the transport path 7.
  • FIG. 2 shows a second embodiment of a device 1 according to the invention for reshaping plastic preforms 10 into plastic containers 20, wherein the plastic preforms 10 are here heated again within a heating device 3 to a temperature required for the blow molding. Subsequently, the plastic preforms 10 are transported on a predetermined transport path T to the blow molding machine 5, wherein the plastic preforms 10 are held by a holding device 30 during transport and also during the subsequent blow molding and closing operation. At a deflection wheel 8, the plastic preforms 10 are transferred from the holding device 30 to a subsequent machine (not shown here). The holding devices 30 themselves reach via the deflection wheel 8 again to the heating device 3 and take here again a plastic preform 10.
  • FIG. 2 It can be seen in particular from FIG. 2 that the holding devices 30 are guided between the blow molding machine 5 and the deflecting wheel 8 on a circulating transport path, which is constructed in particular in the manner of a long stator 32.
  • a closure 25 is also applied to the containers during the linear transport of the containers 20.
  • the closure 25 shown in FIGS. 1 and 2 is a screw or rotary closure, although it would also be conceivable for other types of closure to be applied to the containers 20 at this point.

Abstract

L'invention concerne un dispositif (1) pour le formage de préformes en plastique (10) en récipients en plastique (20), comprenant un système de transport (2) qui transporte les préformes en plastique (10) le long d'une trajectoire de transport (T) prédéfinie; et une machine de moulage par soufflage (5) qui est disposée le long de la trajectoire de transport (T) et qui présente au moins une station de formage (8) à l'intérieur de laquelle les préformes en plastique (10) peuvent être mises sous forme de récipients en plastique (20) par application d'une substance fluide et peuvent dans le même temps être remplies, les récipients en plastique (20) pouvant être transportés à l'intérieur de la machine de moulage par soufflage (5) sur une trajectoire de transport (6) circulaire au moins par sections. Selon l'invention, la sortie des récipients en plastique (20) hors de la machine de moulage par soufflage (5) s'effectue de manière sensiblement tangentielle à la trajectoire de transport (6) circulaire au moins par sections de la machine de moulage par soufflage (5) et/ou l'évacuation des récipients en plastique (20) depuis la machine de moulage par soufflage (5) s'effectue sur une trajectoire de transport (7) linéaire au moins par sections.
PCT/EP2018/083727 2017-12-12 2018-12-06 Dispositif et procédé destinés au formage de préformes en plastique en récipients en plastique, comprenant la sortie tangentielle des récipients en plastique hors de la machine de moulage par soufflage WO2019115325A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102017129577.1A DE102017129577A1 (de) 2017-12-12 2017-12-12 Vorrichtung und Verfahren zum Umformen von Kunststoffvorformlingen zu Kunststoffbehältnissen mit tangentialer Ausleitung der Kunststoffbehältnisse aus der Blasformmaschine
DE102017129577.1 2017-12-12

Publications (1)

Publication Number Publication Date
WO2019115325A1 true WO2019115325A1 (fr) 2019-06-20

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ID=64664271

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2018/083727 WO2019115325A1 (fr) 2017-12-12 2018-12-06 Dispositif et procédé destinés au formage de préformes en plastique en récipients en plastique, comprenant la sortie tangentielle des récipients en plastique hors de la machine de moulage par soufflage

Country Status (2)

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DE (1) DE102017129577A1 (fr)
WO (1) WO2019115325A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102019131542A1 (de) * 2019-11-21 2021-05-27 Khs Corpoplast Gmbh Transporteinrichtung für Preforms

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3771574A (en) * 1971-12-16 1973-11-13 Fmc Corp Transition path for filling machine
JP2001287794A (ja) * 2000-04-11 2001-10-16 Toyo Seikan Kaisha Ltd 充填装置
WO2013093634A2 (fr) * 2011-12-21 2013-06-27 Amcor Limited Système de moulage avec nettoyage de buse de soufflage
US20150284115A1 (en) * 2014-04-04 2015-10-08 Krones Ag Apparatus and method for producing a plastic bottle and for filling it with a filling product
WO2015193412A1 (fr) * 2014-06-18 2015-12-23 Discma Ag Procédé et machine pour la production de récipients par injection d'un liquide à l'intérieur de préformes successives
EP3060482A1 (fr) * 2013-10-21 2016-08-31 Discma AG Machine permettant de former et de remplir des récipients comprenant une zone de stabilisation permettant de stabiliser le liquide à l'intérieur des récipients

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005042275A1 (de) * 2005-09-06 2007-03-08 Krones Ag Linearverschließer
JP6424511B2 (ja) * 2014-08-08 2018-11-21 東洋製罐株式会社 物品の搬送方法及びその装置

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3771574A (en) * 1971-12-16 1973-11-13 Fmc Corp Transition path for filling machine
JP2001287794A (ja) * 2000-04-11 2001-10-16 Toyo Seikan Kaisha Ltd 充填装置
WO2013093634A2 (fr) * 2011-12-21 2013-06-27 Amcor Limited Système de moulage avec nettoyage de buse de soufflage
EP3060482A1 (fr) * 2013-10-21 2016-08-31 Discma AG Machine permettant de former et de remplir des récipients comprenant une zone de stabilisation permettant de stabiliser le liquide à l'intérieur des récipients
US20150284115A1 (en) * 2014-04-04 2015-10-08 Krones Ag Apparatus and method for producing a plastic bottle and for filling it with a filling product
WO2015193412A1 (fr) * 2014-06-18 2015-12-23 Discma Ag Procédé et machine pour la production de récipients par injection d'un liquide à l'intérieur de préformes successives

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