US20190322514A1 - Apparatus and method for producing plastic bottles - Google Patents
Apparatus and method for producing plastic bottles Download PDFInfo
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- US20190322514A1 US20190322514A1 US16/457,181 US201916457181A US2019322514A1 US 20190322514 A1 US20190322514 A1 US 20190322514A1 US 201916457181 A US201916457181 A US 201916457181A US 2019322514 A1 US2019322514 A1 US 2019322514A1
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- bottles
- filler
- starwheel
- machine
- labeling
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Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
- B67C—CLEANING, FILLING WITH LIQUIDS OR SEMILIQUIDS, OR EMPTYING, OF BOTTLES, JARS, CANS, CASKS, BARRELS, OR SIMILAR CONTAINERS, NOT OTHERWISE PROVIDED FOR; FUNNELS
- B67C7/00—Concurrent cleaning, filling, and closing of bottles; Processes or devices for at least two of these operations
- B67C7/0006—Conveying; Synchronising
- B67C7/002—General lay-out of bottle-handling machines
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G29/00—Rotary conveyors, e.g. rotating discs, arms, star-wheels or cones
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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
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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
- B29C49/24—Lining or labelling
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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
- B29C49/28—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
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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
- B29C49/4205—Handling means, e.g. transfer, loading or discharging means
- B29C49/42069—Means explicitly adapted for transporting blown article
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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
- B29C49/4273—Auxiliary operations after the blow-moulding operation not otherwise provided for
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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
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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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65C—LABELLING OR TAGGING MACHINES, APPARATUS, OR PROCESSES
- B65C9/00—Details of labelling machines or apparatus
- B65C9/06—Devices for presenting articles in predetermined attitude or position at labelling station
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G47/00—Article or material-handling devices associated with conveyors; Methods employing such devices
- B65G47/22—Devices influencing the relative position or the attitude of articles during transit by conveyors
- B65G47/24—Devices influencing the relative position or the attitude of articles during transit by conveyors orientating the articles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G47/00—Article or material-handling devices associated with conveyors; Methods employing such devices
- B65G47/74—Feeding, transfer, or discharging devices of particular kinds or types
- B65G47/84—Star-shaped wheels or devices having endless travelling belts or chains, the wheels or devices being equipped with article-engaging elements
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
- B67C—CLEANING, FILLING WITH LIQUIDS OR SEMILIQUIDS, OR EMPTYING, OF BOTTLES, JARS, CANS, CASKS, BARRELS, OR SIMILAR CONTAINERS, NOT OTHERWISE PROVIDED FOR; FUNNELS
- B67C7/00—Concurrent cleaning, filling, and closing of bottles; Processes or devices for at least two of these operations
- B67C7/0006—Conveying; Synchronising
- B67C7/004—Conveying; Synchronising the containers travelling along a circular path
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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
- 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
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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
- B29C49/02—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
- B29C49/42—Component parts, details or accessories; Auxiliary operations
- B29C49/4205—Handling means, e.g. transfer, loading or discharging means
- B29C49/42073—Grippers
- B29C49/42087—Grippers holding outside the neck
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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
- B29C49/4205—Handling means, e.g. transfer, loading or discharging means
- B29C49/42093—Transporting apparatus, e.g. slides, wheels or conveyors
- B29C49/42095—Rotating wheels or stars
-
- 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
- B29C49/42808—Filling the 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
- B29C49/64—Heating or cooling preforms, parisons or blown articles
- B29C49/6409—Thermal conditioning of preforms
- B29C49/6418—Heating of preforms
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
- B67C—CLEANING, FILLING WITH LIQUIDS OR SEMILIQUIDS, OR EMPTYING, OF BOTTLES, JARS, CANS, CASKS, BARRELS, OR SIMILAR CONTAINERS, NOT OTHERWISE PROVIDED FOR; FUNNELS
- B67C3/00—Bottling liquids or semiliquids; Filling jars or cans with liquids or semiliquids using bottling or like apparatus; Filling casks or barrels with liquids or semiliquids
- B67C3/02—Bottling liquids or semiliquids; Filling jars or cans with liquids or semiliquids using bottling or like apparatus
- B67C3/22—Details
- B67C2003/227—Additional apparatus related to blow-moulding of the containers, e.g. a complete production line forming filled containers from preforms
Definitions
- the present disclosure relates to an apparatus and to a method for producing plastic bottles with a blow molding machine, a labeler and at least one further treatment machine, such as a rinser, sterilizer, filler, capper, or the like.
- plastic bottles are first produced in a rotary-type blow molding machine in a continuous way from blanks.
- the blow molding machine accommodates the heated blanks, also called preforms, in correspondingly designed blow molds in which these are then blown during rotation of the blow molding machine under high pressure and at a high temperature to form bottles.
- the bottles are filled and subsequently labeled downstream of the blow molding machine.
- the finish-blown bottles are first labeled and then filled.
- One aspect of the present disclosure is to develop a generic apparatus in such a way that with a spatially compact and space-saving arrangement the apparatus is nevertheless flexible and easily adaptable to different functions, and to provide a corresponding method therefor.
- the apparatus according to the disclosure is distinguished in that transfer starwheels are arranged for the machine-to-machine transportation of the bottles in such a way that the bottles are transported without buffers between the at least three machines.
- the method protects the corresponding direct treatment of the bottles in direct sequence after passage through intermediate conveyor paths formed by transfer wheels. Suitable transfer wheels are e.g. known from WO 2006/087088 A2 (see FIGS. 9 and 10).
- the individual machines are thus directly interconnected, i.e. bloc-synchronized, via transfer starwheels.
- the transfer of the containers between the individual machines takes place via said starwheels, so that although the machines can be arranged in direct vicinity with each other without any long intermediate transportation belts, or the like, separation points are so to speak formed between the machines in the area of the transfer starwheels, which permits a flexible adaptation to different functions.
- transfer points may be provided in the area of the transfer starwheels for discharging and/or introducing containers so as to e.g. discharge useless or unneeded containers or to fill gaps. Especially in the case of transfer wheels with selectively controllable grippers, this can be realized without any problems.
- Such transfer points are of particular advantage in the area between a blow molding machine and one of the downstream machines.
- At least two transfer starwheels are interposed between the blow molding machine and the labeler, at least one of said starwheels serving pitch changing purposes.
- the transfer starwheels can serve not only transportation purposes between interconnected machines, but may also be configured as pitch changing starwheels, e.g. in a manner known per se as pivoting or pivoting/pushing starwheels, so that they can then change the pitch of the bottle row to the required machine pitch for the subsequent labeler, or of a labeler to a subsequent machine, such as a rinser, filler, or the like.
- the transfer starwheels at least one is provided for inspection functions and/or for circumferential alignment of the bottles.
- at least one transfer starwheel is used for attaching inspection modules in its circumferential area, so that the quality (geometric data, absence of defects or damage) of the upstream operating steps can be checked or defects on the container can be detected, such defects possibly causing malfunctions in the downstream machines. Bottles detected to be defective might then be removed.
- the transfer starwheels present between blow molding machine and labeler may be provided for the inspection of the just finish-blown bottles, and the transfer starwheels downstream of the labeler may be provided for inspection of the label position and the label itself.
- the whole apparatus is configured with the individual machines and transfer starwheels in such a way that a continuous, particularly constant, neck handling plane is also obtained for different bottle sizes or heights. It is intended in a further advantageous configuration of the disclosure that transportation and transfer from the blow molding machine takes place while maintaining the orientation or alignment in the removal position of the bottles from the blow mold up to the labeler for a position-correct labeling. With this measure an aligning or orienting process of the bottles for the position-correct infeed into the labeler is simplified or can be omitted altogether and additional aligning paths need not be provided, which in turn shortens the conveyor path.
- the transfer starwheels are configured as individual modules with their own drive and standard interface.
- the transfer starwheels form interfaces with respect to the upstream and/or downstream machines and, thanks to their individual drives (e.g. servomotors, mechanical coupling with decoupling function, or the like), they can decouple the machines from each other.
- their individual drives e.g. servomotors, mechanical coupling with decoupling function, or the like.
- a decoupling between blow molding machine and labeler can take place, which is e.g. of advantage for eliminating a disorder. It is thereby made possible that e.g. machines that are still operative can be run in an empty state whereas e.g. the upstream ones are stopped.
- the blow molding machine can still be run in an empty state while the labeler is stopped, e.g. by way of bottle ejection.
- This solution also offers a typing function for eliminating the malfunction without the need for running the upstream or downstream machines.
- an operation of the individual machines independently of the others is of advantage.
- the machines can be decoupled, it is also possible to improve operator protection because the transfer starwheels between adjoining machines can then be disabled, thereby reducing the risk of squeezing or drawing-in.
- the transfer starwheels form not only the mechanical interface with the machines (modules) but in a figurative sense they also form interfaces with respect to automation and control. In choosing the number and arrangement of the transfer starwheels, it is also possible to further define the position or angular arrangement of the individual machines and their mutual distance. Likewise, the running direction can be varied accordingly, depending on the number of the transfer starwheels.
- the labeler is configured as a modular machine with change units for labeling, printing, aligning and/or inspection.
- change units for labeling, printing, aligning and/or inspection.
- the further treatment machine is a filler/capper combination which is bloc-synchronized via at least two transfer starwheels with the labeler, this will yield the aforementioned advantages also between treatment machine and filler/capper combination. There are short distances or paths while an independent stopping of the individual machines is nevertheless possible.
- the filler/capper combination may be followed by further treatment machines, e.g. a controlled distribution starwheel with which the bottles exiting from the filler/capper combination in spaced-apart relationship can be handed over to a multi-track packer.
- a controlled distribution starwheel with which the bottles exiting from the filler/capper combination in spaced-apart relationship can be handed over to a multi-track packer.
- distribution starwheels are known per se, e.g. from DE OS 10 2006 023 531, the content of which is herewith referred to.
- bloc-synchronization is also possible with a preform injection molding machine arranged upstream of the blow molding machine, which can preferably also take place via transfer starwheels (possibly with pitch changing function).
- FIG. 1 is a schematic top view on an apparatus of the disclosure according to a first embodiment
- FIG. 2 is a schematic top view on a second embodiment
- FIG. 3 is a schematic top view on a third embodiment of an apparatus according to the disclosure.
- the apparatus comprises various machines for producing, labeling and, in the illustrated example, for filling and capping plastic bottles.
- the illustrated apparatus comprises—in the sequence of the individual treatment stages—a preform supply 60 , a heater 50 , the blow molding machine 10 , the labeler 20 and the filler/capper combination 30 , 40 as well as a downstream controlled distribution starwheel 46 that transfers the bottles arriving at the discharge belt 45 in a single row to the multi-track discharger 53 .
- the discharger 53 may already be part of a subsequent packer 54 , which is e.g. designed for the groupwise packing of bottle packs in shrink film and/or a carton blank.
- the packer may e.g. be designed in conformity with DE 42 07 725 A1 and/or DE 44 41 700 A1, i.e. preferably with neck guides for the at least sectionwise suspended transportation of bottles.
- conventional packing machines with bottom-supported bottle transportation via conveyor belts are also useable.
- the individual machines are closely interconnected or bloc-synchronized at short distances and are only separated from one another by interposed transfer starwheels.
- the preforms/bottles pass through the stations described hereinafter in the following way:
- the preforms are separated in the preform separator 60 and supplied via an infeed path 61 to the heating module 50 . At said place they pass along the heating or conditioning path with heating devices 51 and are thereby heated to the temperature needed for blow molding.
- the heating device is directly bloc-synchronized with the blow molding machine 10 and transfers the preforms via the infeed starwheel 11 into the blow molding carousel 13 .
- the plastic containers then blown into bottles pass from there via the outfeed starwheel 12 to the two transfer starwheels 21 and 22 interposed between blow molding machine 11 and labeler 20 .
- the bottles can optionally be given a pitch possibly different in the labeler and can optionally already be inspected and/or circumferentially aligned according to a specific feature for labeling to as to detect and/or sort out defective bottles.
- the transfer starwheels have their own drives (not shown in more detail) and can thus interrupt the bottle stream between the blow molding machine 10 and the labeler 20 .
- the illustrated labeler comprises the infeed starwheel 23 , the labeling carousel 24 and the outfeed starwheel 26 .
- a labeling unit 25 adjoins the carousel 24 .
- the labels can be removed from a container in a precut form or made from a label strip by separation.
- self-adhesive labels or sleeves and the sleeves may here be stretch or shrink sleeves.
- shrinkable film material which after conventional winding onto a bottle, e.g. in combination with an initial and final gluing process, can be fitted by heat treatment to the bottle contour. Combined equipment variants are also feasible.
- a bottom support can preferably be implemented by way of a contour-matched bottom piece so as to avoid any bulging of the bottle bottom, which is still in a soft state and is loaded by internal pressurization during labeling; advantageously, the bottom is cooled and solidified at the same time.
- the outfeed starwheel 26 of the labeler will then again hand over the bottles to two transfer starwheels 31 and 32 , on which an inspection and/or pitch change can be carried out again.
- it is checked in the area of these transfer starwheels whether the labels are correctly positioned and are free from damage, and a new pitch, as is needed for the downstream filler, is effected if necessary.
- the transfer starwheel 32 then transfers the bottles to the infeed starwheel 33 of the filler 30 , in which the bottles are filled.
- the bottles will then pass via the outfeed starwheel 34 into the capper 40 from where they are further transported to the discharger path 50 .
- the bottles arriving there at the distance of the pitch of the capper 40 can then be removed from the discharger belt 45 , e.g. by a controlled gripping starwheel 46 , and handed over to a multi-track discharger 53 .
- Said dischargers may e.g. be chains or belts with grippers (not shown in more detail) for the suspended and possibly completely bottom-free transportation of the bottles.
- blow molding machine Since the blow molding machine is bloc-synchronized with the labeler and the filler/capper combination 30 , 40 just via a few transfer starwheels, a very compact design is accomplished on the whole together with enhanced flexibility because at the functional separation points formed by the transfer starwheels 21 , 22 and 31 , 32 , respectively, a decoupling between the machines is possible both during operation and for maintenance purposes.
- the basic components and the fundamental structure are the same as in the variant shown in FIG. 1 . That is why the same reference signs are also used. What is here not shown is the preform supply 60 .
- the heating module 50 is of a slightly different construction without any functional differences ensuing from this.
- the labeler 20 is configured as a modular machine in the case of which separate units 27 and 28 that are freely standing on the periphery of the carousel 24 are docked in specific positions. These units 27 and 28 can be changed or easily exchanged and replaced by other units, so that very different labeling tasks can be performed without difficulty.
- the units may have assigned thereto supply stations (not shown in more detail) possibly with fully automatic splicing and with a plurality of label supply rolls so as to ensure a labeling operation that is as uninterrupted as possible.
- four further transfer starwheels 36 to 39 are arranged between the two transfer starwheels 31 and 32 .
- said transfer starwheels particularly the bottoms of the bottles, which are normally still hot and have left the blow molding machine just shortly before, are actively cooled, which ensures that the bottles are adequately cooled prior to their infeed into the filler and are thus stable. This is particularly important in cases where CO2-containing beverages are filled under pressure in the filler. In the case of hot bottle bottoms the bottom area might then get damaged and the bottoms might detach during biasing if the bottles were still too hot and instable.
- a protective housing 70 is arranged around the whole system, the housing enclosing the system components such that possibly even different pressure and atmosphere ranges and sometimes even different cleanroom classes can be generated in the area of the blow molding machine, labeling unit and/or filler if e.g. a sterile processing/environment should be required.
- a kind of air separation preferably takes place through arrangement of a corresponding cover 75 , so that possibly glue-containing ambient air from the area of the labeler cannot diffuse in the direction towards the filler and wet air can also not escape out of the area of the filler into the other direction. This airlock helps to keep the filler area clean by preventing external contamination.
- the protective sheath 70 can be configured on the whole such that a real housing is created that surrounds the whole apparatus over the whole circumference and then gives access to the individual machines and assemblies via doors and openings (not shown in more detail).
- Very compact, closed and operative compact systems are created with the assembly according to the disclosure, said systems being highly flexibly while requiring little space and providing modular construction options.
- a bloc-synchronized controlled distributor starwheel may also be arranged on the outfeed of the filler, the distributor starwheel transferring the bottles exiting in a row to a multi-track discharger/packer.
- FIG. 3 shows a further development of the variant shown in FIG. 1 with a blow molding machine in a single-stage operating mode, i.e. directly upstream manufacture of the preforms for plastic bottles.
- the individual components of the apparatus V are of modular construction and arranged close to one another and comprise an injection rotor 100 , which is preferably combined with an extruder 200 co-rotating at least in part and cooperates with an adjoining conditioning path 30 , here configured as a conditioning circle, which has several cooling and/or heating stations 400 assigned thereto.
- the conditioning path 300 cooperates with a transfer starwheel 11 , which in turn cooperates with the blow molding rotor for stretch blow molding the bottles.
- Many injection molds 100 ′ are arranged on the injection rotor 100 for instance in the peripheral area.
- transfer spread mandrels 400 are provided as transfer elements on movable arms of a pitch changing starwheel 430 .
- the transfer starwheel 11 also comprises transportation or transfer elements that hand over preforms issuing from the injection rotor 100 to the blow molds of the blow molding rotor 13 . Further details of a suitable single-stage machine can be gathered from the document WO 2009/049848 A2, which is here explicitly included.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
- Labeling Devices (AREA)
Abstract
Description
- This is a continuation of U.S. application Ser. No. 16/168,444, filed Oct. 23, 2018, which is a continuation of U.S. application Ser. No. 12/875,336, filed Sep. 3, 2010, which claims the benefit of priority of German Application No. 102009040363.9, filed Sep. 7, 2009. This is also a continuation of U.S. application Ser. No. 14/826,030, filed Aug. 13, 2015, which claims the benefit of European Application No. 14181643.9, filed Aug. 20, 2014. U.S. application Ser. No. 16/168,444, U.S. application Ser. No. 12/875,336, U.S. application Ser. No. 14/826,030, German Application No. 102009040363.9 and European Application No. 14181643.9 are hereby incorporated herein by reference in their entireties.
- The present disclosure relates to an apparatus and to a method for producing plastic bottles with a blow molding machine, a labeler and at least one further treatment machine, such as a rinser, sterilizer, filler, capper, or the like.
- It is standard in the manufacture of labeled plastic bottles that plastic bottles are first produced in a rotary-type blow molding machine in a continuous way from blanks. The blow molding machine accommodates the heated blanks, also called preforms, in correspondingly designed blow molds in which these are then blown during rotation of the blow molding machine under high pressure and at a high temperature to form bottles.
- In known methods, the bottles are filled and subsequently labeled downstream of the blow molding machine. However, it is also known that the finish-blown bottles are first labeled and then filled.
- In general, there are long transfer paths between these different machines, partly also with interposition of buffers, so that facilities of that type are made relatively extensive, i.e. they need quite a lot of space.
- One aspect of the present disclosure is to develop a generic apparatus in such a way that with a spatially compact and space-saving arrangement the apparatus is nevertheless flexible and easily adaptable to different functions, and to provide a corresponding method therefor.
- The apparatus according to the disclosure is distinguished in that transfer starwheels are arranged for the machine-to-machine transportation of the bottles in such a way that the bottles are transported without buffers between the at least three machines. The method protects the corresponding direct treatment of the bottles in direct sequence after passage through intermediate conveyor paths formed by transfer wheels. Suitable transfer wheels are e.g. known from WO 2006/087088 A2 (see FIGS. 9 and 10).
- According to the disclosure the individual machines are thus directly interconnected, i.e. bloc-synchronized, via transfer starwheels. The transfer of the containers between the individual machines takes place via said starwheels, so that although the machines can be arranged in direct vicinity with each other without any long intermediate transportation belts, or the like, separation points are so to speak formed between the machines in the area of the transfer starwheels, which permits a flexible adaptation to different functions. Furthermore, transfer points may be provided in the area of the transfer starwheels for discharging and/or introducing containers so as to e.g. discharge useless or unneeded containers or to fill gaps. Especially in the case of transfer wheels with selectively controllable grippers, this can be realized without any problems. Such transfer points are of particular advantage in the area between a blow molding machine and one of the downstream machines.
- In an advantageous configuration of the disclosure at least two transfer starwheels are interposed between the blow molding machine and the labeler, at least one of said starwheels serving pitch changing purposes. Hence, with this measure the transfer starwheels can serve not only transportation purposes between interconnected machines, but may also be configured as pitch changing starwheels, e.g. in a manner known per se as pivoting or pivoting/pushing starwheels, so that they can then change the pitch of the bottle row to the required machine pitch for the subsequent labeler, or of a labeler to a subsequent machine, such as a rinser, filler, or the like.
- In a further variant of the disclosure, it is intended that of the transfer starwheels at least one is provided for inspection functions and/or for circumferential alignment of the bottles. With this measure, at least one transfer starwheel is used for attaching inspection modules in its circumferential area, so that the quality (geometric data, absence of defects or damage) of the upstream operating steps can be checked or defects on the container can be detected, such defects possibly causing malfunctions in the downstream machines. Bottles detected to be defective might then be removed. For instance, the transfer starwheels present between blow molding machine and labeler may be provided for the inspection of the just finish-blown bottles, and the transfer starwheels downstream of the labeler may be provided for inspection of the label position and the label itself.
- Advantageously, the whole apparatus is configured with the individual machines and transfer starwheels in such a way that a continuous, particularly constant, neck handling plane is also obtained for different bottle sizes or heights. It is intended in a further advantageous configuration of the disclosure that transportation and transfer from the blow molding machine takes place while maintaining the orientation or alignment in the removal position of the bottles from the blow mold up to the labeler for a position-correct labeling. With this measure an aligning or orienting process of the bottles for the position-correct infeed into the labeler is simplified or can be omitted altogether and additional aligning paths need not be provided, which in turn shortens the conveyor path.
- In a further advantageous configuration of the disclosure it is intended that the transfer starwheels are configured as individual modules with their own drive and standard interface. Hence, the transfer starwheels form interfaces with respect to the upstream and/or downstream machines and, thanks to their individual drives (e.g. servomotors, mechanical coupling with decoupling function, or the like), they can decouple the machines from each other. For instance, when a transfer starwheel between the blow molding machine and the labeler is stopped, a decoupling between blow molding machine and labeler can take place, which is e.g. of advantage for eliminating a disorder. It is thereby made possible that e.g. machines that are still operative can be run in an empty state whereas e.g. the upstream ones are stopped. For instance, preferably the blow molding machine can still be run in an empty state while the labeler is stopped, e.g. by way of bottle ejection. This solution also offers a typing function for eliminating the malfunction without the need for running the upstream or downstream machines. Also in the case of retooling an operation of the individual machines independently of the others is of advantage. Finally, since the machines can be decoupled, it is also possible to improve operator protection because the transfer starwheels between adjoining machines can then be disabled, thereby reducing the risk of squeezing or drawing-in.
- The transfer starwheels form not only the mechanical interface with the machines (modules) but in a figurative sense they also form interfaces with respect to automation and control. In choosing the number and arrangement of the transfer starwheels, it is also possible to further define the position or angular arrangement of the individual machines and their mutual distance. Likewise, the running direction can be varied accordingly, depending on the number of the transfer starwheels.
- In a further advantageous configuration of the disclosure, the labeler is configured as a modular machine with change units for labeling, printing, aligning and/or inspection. When the labeler is configured in this way, the variable usability of the whole apparatus is enhanced because different labeling functions can then be realized in a simple way on the labeler by just changing the labeling units.
- When the further treatment machine is a filler/capper combination which is bloc-synchronized via at least two transfer starwheels with the labeler, this will yield the aforementioned advantages also between treatment machine and filler/capper combination. There are short distances or paths while an independent stopping of the individual machines is nevertheless possible.
- In a further configuration of the disclosure, the filler/capper combination may be followed by further treatment machines, e.g. a controlled distribution starwheel with which the bottles exiting from the filler/capper combination in spaced-apart relationship can be handed over to a multi-track packer. Such distribution starwheels are known per se, e.g. from DE OS 10 2006 023 531, the content of which is herewith referred to. When such a distribution starwheel is bloc-synchronized with the filler/capper combination, one will realize a space-saving alternative in which the bottles arriving in a row in spaced-apart configuration are handed over to a multi-track packer without the bottles contacting one another during this operation, i.e. the positive bottle handling is uninterruptedly maintained. Space-consuming displacement paths are thereby avoided. It is conceivable to maintain the neck handling of bottles up and into a packer, which is also designed for neck handling transportation, and to produce, possibly right away, a pitch of pack groups during transfer, which pitch corresponds to the machine pitch. The packer thereby also forms part of a synchronously drivable total bloc system, which is preferably feasible without intermediate buffering.
- When the bottles are to be produced in a single-stage process, bloc-synchronization is also possible with a preform injection molding machine arranged upstream of the blow molding machine, which can preferably also take place via transfer starwheels (possibly with pitch changing function).
- The present disclosure shall now be explained and described in more detail with reference to the embodiments shown in the drawings, in which:
-
FIG. 1 is a schematic top view on an apparatus of the disclosure according to a first embodiment; -
FIG. 2 is a schematic top view on a second embodiment; and -
FIG. 3 is a schematic top view on a third embodiment of an apparatus according to the disclosure. - The apparatus according to the disclosure comprises various machines for producing, labeling and, in the illustrated example, for filling and capping plastic bottles. In detail, the illustrated apparatus comprises—in the sequence of the individual treatment stages—a
preform supply 60, aheater 50, theblow molding machine 10, thelabeler 20 and the filler/capper combination distribution starwheel 46 that transfers the bottles arriving at thedischarge belt 45 in a single row to themulti-track discharger 53. Thedischarger 53 may already be part of asubsequent packer 54, which is e.g. designed for the groupwise packing of bottle packs in shrink film and/or a carton blank. The packer may e.g. be designed in conformity with DE 42 07 725 A1 and/or DE 44 41 700 A1, i.e. preferably with neck guides for the at least sectionwise suspended transportation of bottles. However, conventional packing machines with bottom-supported bottle transportation via conveyor belts are also useable. - As can be seen in the figure, the individual machines are closely interconnected or bloc-synchronized at short distances and are only separated from one another by interposed transfer starwheels. In detail, the preforms/bottles pass through the stations described hereinafter in the following way:
- First of all, the preforms are separated in the
preform separator 60 and supplied via aninfeed path 61 to theheating module 50. At said place they pass along the heating or conditioning path withheating devices 51 and are thereby heated to the temperature needed for blow molding. The heating device is directly bloc-synchronized with theblow molding machine 10 and transfers the preforms via theinfeed starwheel 11 into theblow molding carousel 13. The plastic containers then blown into bottles pass from there via theoutfeed starwheel 12 to the twotransfer starwheels blow molding machine 11 andlabeler 20. - In these transfer starwheels the bottles can optionally be given a pitch possibly different in the labeler and can optionally already be inspected and/or circumferentially aligned according to a specific feature for labeling to as to detect and/or sort out defective bottles. The transfer starwheels have their own drives (not shown in more detail) and can thus interrupt the bottle stream between the
blow molding machine 10 and thelabeler 20. - The illustrated labeler comprises the
infeed starwheel 23, thelabeling carousel 24 and theoutfeed starwheel 26. Alabeling unit 25 adjoins thecarousel 24. In this area the bottles passing therethrough are labeled and/or printed (possibly also the labels themselves). The labels can be removed from a container in a precut form or made from a label strip by separation. However, it is also possible to process self-adhesive labels or sleeves, and the sleeves may here be stretch or shrink sleeves. In the case of conventional labels it is also possible to process shrinkable film material which after conventional winding onto a bottle, e.g. in combination with an initial and final gluing process, can be fitted by heat treatment to the bottle contour. Combined equipment variants are also feasible. In the labeling carousel a bottom support can preferably be implemented by way of a contour-matched bottom piece so as to avoid any bulging of the bottle bottom, which is still in a soft state and is loaded by internal pressurization during labeling; advantageously, the bottom is cooled and solidified at the same time. - The
outfeed starwheel 26 of the labeler will then again hand over the bottles to twotransfer starwheels - The
transfer starwheel 32 then transfers the bottles to theinfeed starwheel 33 of thefiller 30, in which the bottles are filled. The bottles will then pass via theoutfeed starwheel 34 into thecapper 40 from where they are further transported to thedischarger path 50. The bottles arriving there at the distance of the pitch of thecapper 40 can then be removed from thedischarger belt 45, e.g. by a controlled grippingstarwheel 46, and handed over to amulti-track discharger 53. Said dischargers may e.g. be chains or belts with grippers (not shown in more detail) for the suspended and possibly completely bottom-free transportation of the bottles. - Since the blow molding machine is bloc-synchronized with the labeler and the filler/
capper combination transfer starwheels - In the variant shown in
FIG. 2 , the basic components and the fundamental structure are the same as in the variant shown inFIG. 1 . That is why the same reference signs are also used. What is here not shown is thepreform supply 60. Theheating module 50 is of a slightly different construction without any functional differences ensuing from this. - The
labeler 20 is configured as a modular machine in the case of whichseparate units carousel 24 are docked in specific positions. Theseunits - As another difference with respect to the variant shown in
FIG. 1 , four further transfer starwheels 36 to 39 are arranged between the twotransfer starwheels - As a further difference with respect to the variant shown in
FIG. 1 , aprotective housing 70 is arranged around the whole system, the housing enclosing the system components such that possibly even different pressure and atmosphere ranges and sometimes even different cleanroom classes can be generated in the area of the blow molding machine, labeling unit and/or filler if e.g. a sterile processing/environment should be required. Especially in the area of the transfer starwheels 31 and 32, a kind of air separation preferably takes place through arrangement of acorresponding cover 75, so that possibly glue-containing ambient air from the area of the labeler cannot diffuse in the direction towards the filler and wet air can also not escape out of the area of the filler into the other direction. This airlock helps to keep the filler area clean by preventing external contamination. - The
protective sheath 70 can be configured on the whole such that a real housing is created that surrounds the whole apparatus over the whole circumference and then gives access to the individual machines and assemblies via doors and openings (not shown in more detail). - Very compact, closed and operative compact systems are created with the assembly according to the disclosure, said systems being highly flexibly while requiring little space and providing modular construction options.
- Of course, in the variant shown in
FIG. 2 , a bloc-synchronized controlled distributor starwheel may also be arranged on the outfeed of the filler, the distributor starwheel transferring the bottles exiting in a row to a multi-track discharger/packer. -
FIG. 3 shows a further development of the variant shown inFIG. 1 with a blow molding machine in a single-stage operating mode, i.e. directly upstream manufacture of the preforms for plastic bottles. The individual components of the apparatus V are of modular construction and arranged close to one another and comprise aninjection rotor 100, which is preferably combined with anextruder 200 co-rotating at least in part and cooperates with an adjoiningconditioning path 30, here configured as a conditioning circle, which has several cooling and/orheating stations 400 assigned thereto. Theconditioning path 300 cooperates with atransfer starwheel 11, which in turn cooperates with the blow molding rotor for stretch blow molding the bottles.Many injection molds 100′ are arranged on theinjection rotor 100 for instance in the peripheral area. In theconditioning path 300 transfer spreadmandrels 400 are provided as transfer elements on movable arms of apitch changing starwheel 430. Thetransfer starwheel 11 also comprises transportation or transfer elements that hand over preforms issuing from theinjection rotor 100 to the blow molds of theblow molding rotor 13. Further details of a suitable single-stage machine can be gathered from the document WO 2009/049848 A2, which is here explicitly included.
Claims (27)
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US16/457,181 US20190322514A1 (en) | 2009-09-07 | 2019-06-28 | Apparatus and method for producing plastic bottles |
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-
2009
- 2009-09-07 DE DE202009019170.2U patent/DE202009019170U1/en not_active Expired - Lifetime
- 2009-09-07 DE DE102009040363A patent/DE102009040363A1/en active Pending
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2010
- 2010-08-03 EP EP22193466.4A patent/EP4122872B1/en active Active
- 2010-08-03 EP EP24157538.0A patent/EP4345020A2/en active Pending
- 2010-08-03 EP EP10171692.6A patent/EP2292550B1/en active Active
- 2010-09-03 US US12/875,336 patent/US10138106B2/en active Active
- 2010-09-07 CN CN2010102778724A patent/CN102009931A/en active Pending
- 2010-09-07 CN CN201610405816.1A patent/CN106081512A/en active Pending
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2018
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- 2018-11-26 US US16/200,113 patent/US20190092614A1/en not_active Abandoned
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2019
- 2019-06-28 US US16/457,181 patent/US20190322514A1/en not_active Abandoned
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EP4122872B1 (en) | 2024-02-28 |
US20190055113A1 (en) | 2019-02-21 |
DE202009019170U1 (en) | 2017-07-07 |
CN102009931A (en) | 2011-04-13 |
US20190092614A1 (en) | 2019-03-28 |
US20110056172A1 (en) | 2011-03-10 |
DE102009040363A1 (en) | 2011-03-10 |
EP4122872A1 (en) | 2023-01-25 |
US10138106B2 (en) | 2018-11-27 |
EP4345020A2 (en) | 2024-04-03 |
EP2292550A1 (en) | 2011-03-09 |
CN106081512A (en) | 2016-11-09 |
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