WO2020020881A1 - Dispositif et procédé pour transformer par formage des préformes en matière plastique en récipients en matière plastique, par production de pression obtenue par rotation d'un support - Google Patents

Dispositif et procédé pour transformer par formage des préformes en matière plastique en récipients en matière plastique, par production de pression obtenue par rotation d'un support Download PDF

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Publication number
WO2020020881A1
WO2020020881A1 PCT/EP2019/069790 EP2019069790W WO2020020881A1 WO 2020020881 A1 WO2020020881 A1 WO 2020020881A1 EP 2019069790 W EP2019069790 W EP 2019069790W WO 2020020881 A1 WO2020020881 A1 WO 2020020881A1
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WO
WIPO (PCT)
Prior art keywords
carrier
pressure generating
energy
pumps
drive
Prior art date
Application number
PCT/EP2019/069790
Other languages
German (de)
English (en)
Inventor
Harald Steinberger
Andreas Vornehm
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 WO2020020881A1 publication Critical patent/WO2020020881A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B29C49/28—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
    • B29C49/4236—Drive 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
    • B29C49/4284—Means for recycling or reusing auxiliaries or materials, e.g. blowing fluids or energy
    • 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
    • B29C2049/024—Combined blow-moulding and manufacture of the preform or the parison not using inherent heat of the preform, i.e. 2 step 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
    • B29C49/46—Component parts, details or accessories; Auxiliary operations characterised by using particular environment or blow fluids other than air
    • B29C2049/4602—Blowing fluids
    • B29C2049/465—Blowing fluids being incompressible
    • B29C2049/4664—Blowing fluids being incompressible staying in the final article
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B29C49/42—Component parts, details or accessories; Auxiliary operations
    • B29C49/58—Blowing means
    • B29C2049/5858—Distributing blowing fluid to the moulds, e.g. rotative distributor or special connection
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B29C49/08—Biaxial stretching during blow-moulding
    • B29C49/10—Biaxial stretching during blow-moulding using mechanical means for prestretching
    • B29C49/12—Stretching rods
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B29C49/08—Biaxial stretching during blow-moulding
    • B29C49/10—Biaxial stretching during blow-moulding using mechanical means for prestretching
    • B29C49/122—Drive means therefor
    • 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
    • B29C49/4289—Valve constructions or configurations, e.g. arranged to reduce blowing fluid consumption
    • 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
    • B29C49/78—Measuring, controlling or regulating
    • B29C49/783—Measuring, controlling or regulating blowing pressure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working

Definitions

  • the present invention relates to an apparatus and a method for shaping plastic preforms into plastic containers.
  • Such devices and methods have long been known from the prior art. With such methods, plastic preforms are usually first blown into plastic containers by means of compressed air and then the containers blown in this way are filled with a filling material, in particular a beverage.
  • a filling material in particular a beverage.
  • devices and methods have recently become known in which plastic preforms are filled directly with the beverage to be filled and are also expanded in the process
  • the thermally preconditioned plastic preform is not expanded into a hollow body in at least two steps by means of a gas (traditionally compressed air), but rather the filling material to be filled is used directly as the pressure medium and the Preform expanded in at least one step.
  • a gas traditionally compressed air
  • blow-filling stations of this type are installed on rotating cassettes in order to achieve the medium and high output range. For this reason, the amount of energy required for this must be introduced into the rotating part of a machine using various rotary distributors and slip ring carriers.
  • the energy supply is relatively simple if the said pressure generating modules are stationary to the molding stations and the central energy supply, that is to say if the energy does not have to be transferred to moving or rotating parts. If, on the other hand, the forming stations are arranged on a movable and / or rotating part of the plant, the forming energy must be transferred to this part of the plant. Depending on the machine output, the total power required on the moving part can increase considerably and require larger and or additional transformers.
  • the present invention is therefore based on the object of providing a device and a method which, even in processes referred to above as liquiform, enable an adequate supply of energy to the usually moving forming stations. According to the invention, these objects are achieved by the subject matter of the independent claims. Advantageous embodiments and further developments are the subject of the subclaims.
  • the device has an energy converter device which converts a rotational energy of the carrier and / or the drive device and / or a further stationary drive device into drive energy for operating the pressure generating device.
  • the liquid is advantageously a drink and in particular the drink to be filled into the containers later.
  • a plurality of such forming stations is particularly preferably arranged on the rotatable carrier / rotating carousel.
  • Each of these shaping stations particularly preferably has a shaping shape within which the plastic preforms are expandable and, in particular, can be expanded by filling with the liquid product.
  • This form of forming can have several parts, for example two side parts and a bottom part, which together form the cavity within which the plastic preforms are expanded.
  • the shaping station has a rod-like body which can be inserted into the plastic preforms in order to stretch it in the longitudinal direction thereof.
  • This energy converter unit is to attach a toothed ring to a table top or the support, and to attach a geared pump, for example an axial piston pump, to the rotating part for each station, which pump then rolls through on the static ring gear is driven.
  • a geared pump for example an axial piston pump
  • the energy input into the rotating part does not take place via rotary distributors, but is ultimately applied by the drive for the rotary carousel and in particular is transferred mechanically to the pump located on the rotating part.
  • electrical energy transmission would also be possible, for example in which a dynamo device or a generator device is arranged on the rotary distributors, which in turn is driven by said rotary movement.
  • Pressure generating device a pump device.
  • This is particularly preferably an axial piston pump which is particularly preferably adjustable both in the delivery rate and in the delivery direction.
  • a drive and in particular an actuator is provided, which serves to arrange and / or adjust the pressure generating device.
  • This drive device can be, for example, a servo drive, the energy requirement of which can in turn be easily transferred using slip ring carriers - even of a small size.
  • the device therefore also has a transmission device for transmitting electrical energy, and in particular a slip ring arrangement.
  • the pressure generating device can also suck in cleaning agents and pump them backwards if necessary, for example by pumping through the entire product supply. It is also conceivable to fill the edges to the brim and then suck off a filling material, for example to a predetermined filling level of the filling body.
  • the device could provide a kind of product recovery.
  • an inductively operating energy transmission device could also be provided.
  • inductive slip rings could be provided.
  • permanent magnets could be provided stationary on the carriers, which in turn generate the electrical energy in the coils of the carrier.
  • An inductive energy transmission device which has energy transmission elements which consist of a group of energy transmission elements. elements is selected, which contains coils, permanent magnets and the like. At least one of these (inductive) energy transmission elements is preferably arranged such that it can move relative to another of these energy transmission elements. It would be conceivable for two coils to face each other, one of these coils being stationary and the other being movable and, in particular, rotatable. The stationary coil can induce voltage in the movable coil. This mode of operation is comparable to that of a transformer.
  • the present invention has been described here with reference to a shaping device for shaping plastic preforms into plastic containers.
  • the present invention can also be used for other machines, for example for so-called injection molding machines, which particularly preferably also have a large number of cavities which are arranged on a rotatable carrier, these cavities each for the production of plastic preforms.
  • the applicant therefore reserves the right to claim protection for a device for the production of plastic preforms with at least one forming station, to which a plastic material can be fed, and which produces plastic preforms from this plastic material.
  • This device also has a filling device which feeds the plastic medium to a molding tool.
  • a pressure generating device could also be provided here, which supplies the plastic material under pressure, the forming station being particularly preferably arranged on a rotatable carrier, and a drive device for driving the carrier.
  • this drive device is particularly preferably arranged stationary.
  • the device also has an energy converter device which converts a rotational energy of the carrier and / or the drive device and / or a further stationary drive device into a drive energy for operating the pressure generating device and / or the filling device.
  • motor components are installed in addition to the main drive known from today's stretch blow molding machines.
  • a primary part such as a winding can be placed on the rotating part, such as the carrier, and magnets, which are connected to the stationary machine part, on the secondary part.
  • the drive device and in particular the main drive, sets the mold filling wheel in motion, tension is indicated in a winding (primary part).
  • inverters are provided on the movable part which particularly preferably regulate the power draw from the winding and make the energy available to the consumers on the rotating mold filling wheel or the carrier.
  • the system can be used to brake the carrier by converting the kinetic energy from the rotation into heat. This is conceivable, for example, by specifically influencing the current of the primary winding (d-current component) or in consumers such as the pressure generation from which the stretching drives specifically derive energy.
  • a central arrangement is conceivable in which a generator or dynamo sits in the center of the carrier or mold filling wheel.
  • the primary part rotates with the form filling wheel.
  • the secondary part is preferably fixed to the machine foundation.
  • One or more generators are provided, which are preferably arranged concentrically around the center of the mold filling wheel. It is conceivable that the primary parts are arranged fixed to the carrier. The secondary parts rotate on the one hand with the primary parts about the axis of the carrier and on the other hand also about their own axis. This creates a relative movement between the primary part and the secondary part. This relative movement can be generated, for example, by a toothing that exists between the secondary parts and the stationary machine foundation. This arrangement bears some resemblance to a planetary gear.
  • the dynamo or generator is built from modular components.
  • the shape size and the installation location being selected in such a way that a relative movement occurs between the primary parts rotating with the carrier and the stationary secondary parts.
  • This principle can be implemented, for example, with motor kits, similar to those for linear drives, which are known per se from the prior art.
  • the (at least one) pressure generating device is therefore arranged on the rotatable carrier / rotary carousel. It is conceivable that a pressure generating device is provided for several forming stations. However, it would also be possible for several pressure generating devices or pumps to be present. Furthermore, in a preferred embodiment it would be possible for a pressure generating device to be assigned to each forming station.
  • the energy converter device has a toothing that is non-rotatably coupled to the carrier and that is used to operate the pressure generating device at least indirectly. It is possible that the pressure generating device is driven directly by means of this toothing. However, it would also be possible for this toothing to drive a generator, which in turn generates the electrical energy for operating the pressure generating device.
  • this toothing which is embodied in particular as a ring gear
  • this toothing to be rotatable relative to the blowing and / or filling wheel, for example moving in the same direction or in opposite directions with respect to the latter.
  • the speed of the pressure generating devices (in particular pumps) coupled via the toothing can be adapted, that is to say in particular increased or reduced.
  • the rotational energy of the carrier and / or its drive device and / or a further stationary drive device is mechanically converted to rotational energy of the pressure generating device and / or of an element of the pressure generating device. It is conceivable that the pressure generating device is driven directly via the toothing.
  • the drive device which drives the main carrier could also have a further output shaft which drives said generator.
  • This output shaft could run concentrically with an axis of rotation of the carrier.
  • an additional drive device to be arranged which drives said generator device or else direct pressure generating device.
  • This further drive device could also again have an output shaft which coincides with the axis of rotation of the carrier.
  • At least one pressure generating device preferably a pump device and in particular a pump device, is provided, which is selected from a group of pump directions, which see hydraulic pumps, sinus pumps, axial piston pumps, bellows pumps, diaphragm pumps,
  • the filling device has a closing element which blocks the inflow of the liquid into the container in at least one position and permits this inflow in at least one position. In this way, the supply of the liquid to containers can be controlled. However, it would also be possible for control to take place directly via the respective pump device or pressure generating device.
  • the energy converter device has a gear device which converts a rotational movement of the carrier and / or the drive device and / or a further stationary drive device into a rotational movement of at least one element of the pressure generating device.
  • the energy converter device has a dynamo device and / or generator device which converts the rotational energy of the carrier and / or the drive device and / or the further stationary drive device into electrical energy which is at least partially used to operate the Pressure generating device can be used.
  • This embodiment is therefore proposed, since it does not directly convert the mechanical energy of the carrier into mechanical energy of the pressure generating device, but rather first generates electrical energy, which in turn is used to drive the pressure generating device.
  • the present invention is further directed to a method for expanding plastic preforms to plastic containers by means of a liquid medium, wherein at least one shaping station fills and expands the plastic preforms with the liquid medium, and at least one feed device feeds the liquid medium to the shaping station, the shaping station the liquid medium is filled into the plastic preforms by means of a filling device and the device supplies the liquid medium under pressure by means of a pressure generating device to the forming station, the forming station being arranged on a rotatable carrier and at least temporarily during the expansion along an essentially circular
  • Transport path moves and a drive device further drives this carrier for rotation.
  • an energy conversion device converts into drive energy for operating the pressure generating device. It is therefore also proposed on the process side that the rotational energy of the carrier present in the system is used indirectly or directly to drive the pressure generating devices.
  • the energy conversion device converts the rotational energy of the carrier and / or the drive device and / or a further stationary drive device into a rotational movement of at least one element of the pressure generating device and / or the energy conversion device converts the rotational energy of the carrier and / or the drive device and / or a further stationary drive device in electrical energy and this electrical energy is at least partially used to operate the pressure generating device.
  • the energy supply to the pressure generating device is thus preferably carried out by means of a rotary movement generated by the main drive motor.
  • the energy could be generated by means of a static ring gear on the stationary part of the machine and a gearwheel at each pressure generating device.
  • the transmission of the energy could also take place by means of, in particular, a rotationally dynamic sprocket (preferably in both directions of rotation) which is arranged on the stationary part of the machine and a drive wheel for each individual pressure generating device.
  • This rotationally dynamic sprocket could also be driven by means of a belt drive or chain drive or also an electric motor and / or a mechanical gear or a shaft.
  • an axial piston pump is particularly suitable as a pressure generating device, which can preferably be continuously adjusted from the delivery rate in the forward direction to zero delivery up to the delivery rate in the return direction.
  • Such an axial piston pump could be actuated, for example, by means of an (electric) linear motor.
  • the pump could also be operated by means of a rotary motor and an eccentric drive (in particular using a cam or a crank drive).
  • this axial piston pump could also be actuated by means of a rotary motor, which is preferably connected directly to the axial piston pump.
  • the pressure generating device and in particular the pump could be actuated by means of a pneumatic or hydraulic actuator.
  • actuation of the pressure generating device by means of mechanical curves and / or switching cams would also be possible.
  • a control device is particularly preferably provided in order to control these pressure generating devices.
  • a “filling ramp” could be provided, which can be specified or controlled particularly preferably by software. This ramp can be traversed for different filling speeds.
  • the device has a securing device for the pressure generating device.
  • protection could be carried out by means of at least one pressure relief valve and / or a pressure switch and / or a short-circuit circuit.
  • the pump pressure could be designed for a maximum of 40 bar.
  • the securing device could also be a slip clutch or a clutch device which is arranged, for example, on a main drive shaft.
  • the protection could also take place by releasing an active member, for example between the driving sprocket and the axial piston pump, or by providing a clutch here. The same would be possible for a belt or chain drive.
  • the pressure generating device could have a backing pump, for example a feed pump, with this being particularly preferably a upstream pressure or supply pressure pump. This pump could supply the medium to be filled to the axial piston pump.
  • this feed pump is controlled separately from the axial piston pump with a pressure or quantity control.
  • this feed pump it would also be possible for this feed pump to be driven directly by a continuous main shaft of an axial piston pump (for example in a flange design). Control can also take place, for example, via a pressure valve (feed valve and possibly a feedback valve). Further advantages and embodiments result from the attached drawings.
  • FIG. 1 shows a schematic structure of a device according to the invention in a first embodiment
  • FIG. 2 shows a schematic representation of a device according to the invention in a second embodiment
  • 3 shows a schematic representation of a device according to the invention in a third embodiment
  • FIG. 4 shows an illustration of a device according to the invention in a fourth embodiment
  • FIG. 5 shows a detailed illustration to illustrate the device shown in FIG. 4;
  • FIG. 6 shows a further illustration of an embodiment according to the invention
  • 7 shows a detailed illustration to illustrate a mechanical drive
  • FIG. 8 shows a further illustration of a mechanical drive.
  • Figure 1 shows a schematic representation of a device 1 according to the invention in a first embodiment.
  • a “blowing wheel” or “station support” 62 is arranged on a base support 60.
  • a large number of forming stations 2 are provided on this station carrier, but only two such stations are shown here.
  • these forming stations 2 are rotatably supported by means of roller bearings 56.
  • the reference numeral 6 denotes a supply line for supplying the liquid medium, which in the case of the pump solution is already under filling pressure, to a valve block 26 and ultimately to the filling device 12, which fills the plastic preforms (not shown) with the liquid.
  • a stretching rod 28 can be provided, which stretches the plastic preforms in their longitudinal direction.
  • An electric motor, and particularly preferably a linear motor, is preferably provided for moving this stretching rod.
  • the reference numeral 50 denotes a rotary distributor which distributes the liquid to be filled via line strings 52.
  • the reference numerals 4 and 42 identify a pressure generating device which is used to ultimately supply the liquid to the containers via the high-pressure line 6.
  • the pressure generating device is an axial piston pump. These have a gear 64. This gearwheel can roll relative to a counter gear which is arranged on the round part of the device, namely the carrier 62. It is possible that
  • Gear of the (axial piston) pump rolls on a rotating, dynamic ring gear of a carrier, for example a table top.
  • the gears 64 of the pressure generating device are also driven when the carrier 62 rotates and can thus pressurize the liquid.
  • the gear 64 is thus a component of the energy converter device in the embodiment shown in FIG. 1.
  • the pressure generating devices are driven directly by the rotation of the blowing wheel.
  • the blowing wheel is preferably provided with a drive device (not shown), in particular in the form of an electric motor.
  • the reference numeral 58 relates to a further, optionally available bearing, with the aid of which the gear wheel or the ring gear 64 can be rotatably supported with respect to the filling wheel or the carrier. In this way, as mentioned above, a speed of the pump device can be reduced or increased.
  • FIG. 2 shows a further embodiment of the present invention.
  • the individual forming stations are arranged rotating on the carrier 62.
  • a stationary drive motor 36 is additionally provided.
  • This drives a generator 82 via a shaft 38.
  • This generator can in turn supply the pressure generating devices with energy, but also possibly stretching rod movement units 84 or also a control device (not shown).
  • the rotation of a further stationary drive device namely the motor 36
  • the shaft 38 is driven directly by the drive motor which also drives the blowing wheel.
  • this drive motor could have a further shaft output.
  • the generator 82 is driven directly from the rotation of the carrier 62 (for example via a corresponding toothing).
  • Figure 3 shows a further embodiment of the device according to the invention.
  • a first transport device or a feed wheel 32 is shown here, which plastic preforms
  • a second transport device or a discharge wheel 34 conveys the filled and also expanded containers 25.
  • This system has a rotating system part I and also a stationary system part
  • the stationary system part II here contains a product feed line 64, via which the liquid to be filled is ultimately fed to the rotating part.
  • a rotary distributor (not shown) is provided, which distributes the liquid to the individual forming stations 2
  • Reference numerals 4 and 42 relate to the pressure generating device.
  • the reference numeral 45 denotes power electronics, which serve to control the pressure generating device.
  • the pressure generating device 4, 42 is supplied with electricity.
  • a secondary part 5 is provided here, which is arranged in a stationary manner.
  • the primary part 20 is arranged here centrally on the form filling wheel. This relative rotation generates the energy which in turn supplies the pumps.
  • the reference symbol 35 denotes a pressure storage device which is supplied by the pressure supply device.
  • the reference numeral 37 denotes a pressure ring distributor, which is also fed by the pressure generating device 4, 42.
  • Valves 26 are assigned to the individual stations, which serve for the liquid supply or for loading the plastic preforms. All forming stations are fed from the ring channel 37. The energy for operating the pump is again obtained here from the rotation of the support, designated in its entirety by 62.
  • FIG. 4 The embodiment shown in FIG. 4 is largely similar to the embodiment shown in FIG. 3.
  • a rotating system part and a fixed system part are also available here.
  • a generator device is provided here, but several of the parts are in turn arranged on the mold carrier in a rotating manner.
  • These primary parts are provided with the reference symbols 20a, 20b and 20c and the secondary parts with the reference symbols 5a, 5b, and 5c.
  • These individual generators are driven by the rotation of the station carrier and thus generate the electrical energy for feeding the pressure generating device 4, 42.
  • FIG. 5 shows a possible embodiment for driving the generator devices shown in FIG. 4 Have internal toothing or a ring gear 62a, which is in engagement with an external toothing 22 of the generator devices, which in turn drives a magnet carrier.
  • the internal toothing is with connected to the base support 60.
  • the generator devices are arranged on the station carrier. In this way, a rotary movement occurs in the generator when the molding wheel or the station carrier is rotated relative to the base carrier 60. In this variant, however, the rotation or the energy generation is also obtained from the rotation of the station carrier.
  • Figure 6 shows a further structure of the device according to the invention.
  • a large number of modular secondary parts 72 are also provided here. These secondary parts are arranged here in a stationary manner and can each have magnets which, due to the rotation of the mold carrier, move relative to stationary magnets and in this way generate the electrical energy for driving the pressure generating device.
  • the reference numeral 74 accordingly designates a modular primary part which is arranged on the carrier and thus rotatably.
  • the advantages of the embodiments shown are very good controllability and also the possibility of multi-quadrant operation. This means that the direction of the energy flow can be controlled. In addition, an improved scalability of the device is also possible. Furthermore, the magnetic elements described here, in particular the coils and the permanent magnets, can also be used as brakes for the mold filling wheel.
  • corresponding energy generation devices also have cooling elements, in particular but not exclusively, in order to cool coils.
  • FIG. 7 shows a roughly schematic illustration of a forming station 2, which runs here along a circular path.
  • a gear to be driven is also shown schematically, which can be driven, for example, by external teeth of a stationary gear (see arrow P1).
  • This gearwheel can drive a pump device such as an axial piston pump.
  • FIG. 8 shows a further roughly schematic representation of a device according to the invention.
  • a pump device or pressure generating device 4 Provided, which is rotatably arranged and which is driven by a stationary element 81 and a gear 84 arranged on the pressure generating device.
  • the pressure generating devices or pump devices are in turn driven directly by the rotating mold filling wheel or blowing wheel.

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)

Abstract

L'invention concerne un dispositif (1) permettant de soumettre des ébauches en matière plastique (10) à expansion pour former des récipients en matière plastique au moyen d'un milieu fluide avec au moins un poste de formage (2) qui remplit les ébauches en matière plastique de milieu fluide et le soumet à expansion avec au moins un dispositif d'alimentation (6) qui alimente le poste de formage en milieu fluide, le poste de formage présentant un dispositif de remplissage (12) qui remplit les ébauches en matière plastique (10) du milieu fluide, et le poste de formage (2) acheminant le milieu fluide sous pression, le poste de formage (2) étant monté sur un support (62) rotatif et l'invention concerne également un dispositif d'entraînement (18) pour entraîner le support (8). Selon l'invention, le dispositif (1) présente un dispositif convertisseur d'énergie (20) qui convertit une énergie de rotation du support (62) et/ou du dispositif d'entraînement (18) et/ou d'un autre dispositif d'entraînement monté fixe en une énergie d'entraînement pour faire fonctionner le dispositif de production de pression.
PCT/EP2019/069790 2018-07-23 2019-07-23 Dispositif et procédé pour transformer par formage des préformes en matière plastique en récipients en matière plastique, par production de pression obtenue par rotation d'un support WO2020020881A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102018117757.7 2018-07-23
DE102018117757.7A DE102018117757A1 (de) 2018-07-23 2018-07-23 Vorrichtung und Verfahren zum Umformen von Kunststoffvorformlingen zu Kunststoffbehältnissen durch Drehen eines Trägers bewirkte Druckerzeugung

Publications (1)

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WO2020020881A1 true WO2020020881A1 (fr) 2020-01-30

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PCT/EP2019/069790 WO2020020881A1 (fr) 2018-07-23 2019-07-23 Dispositif et procédé pour transformer par formage des préformes en matière plastique en récipients en matière plastique, par production de pression obtenue par rotation d'un support

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DE (1) DE102018117757A1 (fr)
WO (1) WO2020020881A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6186760B1 (en) * 1997-08-01 2001-02-13 Greig S. Latham Blow mold machine monitor and control system
DE102007008023A1 (de) * 2007-02-15 2008-08-21 Sig Technology Ag Verfahren und Vorrichtung zur Blasformung von Behältern
DE102011085387A1 (de) * 2011-10-28 2013-04-11 Schaeffler Technologies AG & Co. KG Elektrischer Antrieb für ein Blasmodul einer PET-Streckblasmaschine
DE102013110132A1 (de) * 2013-09-13 2015-03-19 Krones Ag Vorrichtung und Verfahren zum Umformen von Kunststoffvorformlingen mit Blasluftrückgewinnung
US20170082181A1 (en) * 2014-05-15 2017-03-23 South China University Of Technology Power time sequence conversion method and device for manufacturing products in batches

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL1003827C2 (nl) * 1996-08-19 1998-02-26 Thomassen & Drijver Inrichting voor het hermodelleren van een hol metalen voorwerp.

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6186760B1 (en) * 1997-08-01 2001-02-13 Greig S. Latham Blow mold machine monitor and control system
DE102007008023A1 (de) * 2007-02-15 2008-08-21 Sig Technology Ag Verfahren und Vorrichtung zur Blasformung von Behältern
DE102011085387A1 (de) * 2011-10-28 2013-04-11 Schaeffler Technologies AG & Co. KG Elektrischer Antrieb für ein Blasmodul einer PET-Streckblasmaschine
DE102013110132A1 (de) * 2013-09-13 2015-03-19 Krones Ag Vorrichtung und Verfahren zum Umformen von Kunststoffvorformlingen mit Blasluftrückgewinnung
US20170082181A1 (en) * 2014-05-15 2017-03-23 South China University Of Technology Power time sequence conversion method and device for manufacturing products in batches

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