WO2012111728A1 - ブロー成形機 - Google Patents
ブロー成形機 Download PDFInfo
- Publication number
- WO2012111728A1 WO2012111728A1 PCT/JP2012/053598 JP2012053598W WO2012111728A1 WO 2012111728 A1 WO2012111728 A1 WO 2012111728A1 JP 2012053598 W JP2012053598 W JP 2012053598W WO 2012111728 A1 WO2012111728 A1 WO 2012111728A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- station
- blow molding
- injection
- mold
- molding machine
- Prior art date
Links
- 239000007924 injection Substances 0.000 claims abstract description 127
- 238000002347 injection Methods 0.000 claims abstract description 127
- 238000000465 moulding Methods 0.000 claims abstract description 15
- 238000000071 blow moulding Methods 0.000 claims description 179
- 238000012546 transfer Methods 0.000 claims description 122
- 238000010102 injection blow moulding Methods 0.000 claims description 82
- 238000001746 injection moulding Methods 0.000 claims description 81
- 238000010103 injection stretch blow moulding Methods 0.000 claims description 77
- 238000012545 processing Methods 0.000 claims description 27
- 238000001816 cooling Methods 0.000 claims description 22
- 238000003825 pressing Methods 0.000 claims description 18
- 230000007246 mechanism Effects 0.000 claims description 17
- 239000012530 fluid Substances 0.000 claims description 8
- 230000000052 comparative effect Effects 0.000 description 10
- 238000000034 method Methods 0.000 description 8
- 230000008569 process Effects 0.000 description 8
- 239000002826 coolant Substances 0.000 description 7
- 238000007599 discharging Methods 0.000 description 6
- 229920000139 polyethylene terephthalate Polymers 0.000 description 5
- 239000005020 polyethylene terephthalate Substances 0.000 description 5
- 239000003507 refrigerant Substances 0.000 description 5
- 125000006850 spacer group Chemical group 0.000 description 5
- 239000004698 Polyethylene Substances 0.000 description 4
- 239000004743 Polypropylene Substances 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000002093 peripheral effect Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- -1 polyethylene terephthalate Polymers 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 2
- 230000002411 adverse Effects 0.000 description 2
- 235000013361 beverage Nutrition 0.000 description 2
- 230000037237 body shape Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000006196 drop Substances 0.000 description 2
- 230000003028 elevating effect Effects 0.000 description 2
- 239000003889 eye drop Substances 0.000 description 2
- 230000002452 interceptive effect Effects 0.000 description 2
- JVTAAEKCZFNVCJ-UHFFFAOYSA-N lactic acid Chemical compound CC(O)C(O)=O JVTAAEKCZFNVCJ-UHFFFAOYSA-N 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000002537 cosmetic Substances 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 229940012356 eye drops Drugs 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 235000014655 lactic acid Nutrition 0.000 description 1
- 239000004310 lactic acid Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000012778 molding material Substances 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Images
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
- B29C49/02—Combined blow-moulding and manufacture of the preform or the parison
- B29C49/06—Injection blow-moulding
- B29C49/061—Injection blow-moulding with parison holding means displaceable between injection and blow stations
- B29C49/062—Injection blow-moulding with parison holding means displaceable between injection and blow stations following an arcuate path, e.g. rotary or oscillating-type
-
- 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
- B29C49/08—Biaxial stretching during 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
- B29C49/08—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
- B29C49/02—Combined blow-moulding and manufacture of the preform or the parison
- B29C2049/023—Combined blow-moulding and manufacture of the preform or the parison using inherent heat of the preform, i.e. 1 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
- B29C49/48—Moulds
- B29C2049/4856—Mounting, exchanging or centering moulds or parts thereof
-
- 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
- B29C49/1202—Means for fixing the stretching rod to the driving means, e.g. clamping means or bayonet connections
Definitions
- the present invention relates to a blow molding machine that can be used by switching between an injection stretch blow molding machine and an injection blow molding machine by exchanging mold parts.
- An injection stretch blow molding machine (also referred to as a biaxial stretch blow molding machine) injection-molds a preform and stretches the preform in a biaxial (horizontal axis and vertical axis) direction with a stretching rod and blow air. Is formed (Patent Documents 1 and 2).
- the injection stretch blow molding machine is suitable for molding a container made of a material that is easy to maintain an appropriate stretching temperature during the molding process and has good stretch characteristics, for example, PET (polyethylene terephthalate).
- PET polyethylene terephthalate
- injection stretch blow molding machines such as PE (polyethylene) and PP (polypropylene), have a faster crystallization rate than PET, tend to be below the proper stretching temperature during the molding process, and have poor stretching properties. Not suitable for molding material containers. In the case of manufacturing a thin container made of PE or PP, molding by injection stretch blow becomes more difficult.
- the injection stretch blow molding machine of Patent Document 1 is equipped with a heating (temperature control) stage.
- the heating (temperature control) stage has significant advantages such as optimizing an unfavorable thermal history generated in the preform after injection molding, and forming a bottle having a more complicated shape by locally heating the preform.
- the shape of the container corners cannot be fully produced as a result of the amount of heat retained in the preform being reduced on the heating (temperature control) stage. There was also.
- an injection blow molding machine is more suitable when a material such as PE or PP is used or when a small container which does not require much longitudinal stretching is formed even with PET.
- the injection blow molding machine performs injection molding of a preform, and conveys the preform from an injection molding station to a blow molding station using an injection core mold.
- a preform is stretched mainly in a uniaxial (horizontal axis) direction only by blow air from an injection core mold to form a container (Patent Document 3).
- Molding small quantities of various types of containers using two blow molding machines with different blow molding methods reflects the cost of the two blow molding machines in the price of the container, so there is a limit in reducing the cost of the container .
- the installation area of the factory where the two blow molding machines are arranged is increased, and the maintenance cost of the two blow molding machines is reflected in the price of the container.
- the operation rate of each one blow molding machine is low, which is not efficient.
- Some aspects of the present invention provide a highly versatile blow molding machine that can be used by switching between an injection stretch blow molding machine and an injection blow molding machine by exchanging parts.
- Some other aspects of the present invention provide a blow molding machine capable of preventing a rotating disk from being deformed and causing poor rotation even when switched between an injection stretch blow molding machine and an injection blow molding machine. To do.
- One embodiment of the present invention provides: The lower base, An upper base that is raised and lowered above the lower base; A turntable that is rotatably supported by the upper base and stops a plurality of transfer members at a plurality of rotation stop positions; A plurality of processing stations disposed at the plurality of rotation stop positions in a space between the lower base and the upper base;
- the plurality of processing stations include at least an injection molding station having an injection mold and a blow molding station having a blow mold;
- the injection molding station A lower cylinder supported by the lower base and driving the upper base up and down; An upper cylinder supported by the upper base and driving the mold clamping machine up and down;
- each of the plurality of transfer members includes a first neck mold, and at the injection molding station, the upper base and the turntable are driven by the lower cylinder.
- each of the plurality of transfer members includes a transfer mold unit having a second neck mold and a second injection core mold, and at the injection molding station, The transfer mold unit is configured such that the upper base, the rotating disk, and the mold clamping disk are lowered from the lower cylinder, and a pressure receiving block fixed to the lowered mold clamping disk is further lowered by the upper cylinder.
- the present invention relates to a blow molding machine that directly presses and molds a second preform by clamping the transfer mold unit to a second injection cavity mold supported on the lower base side.
- the lower base, the upper base, the rotating disk, and the plurality of processing stations of one blow molding machine are used both as an injection stretch blow molding machine and an injection blow molding machine.
- at least an injection molding station and a blow molding station are provided, and a plurality of transfer members supported by a rotating disk and parts including molds arranged at each station are exchanged. It ’s fine.
- Part replacement is an operation normally performed for each specification of a container to be molded.
- the model change of the blow molding machine can be practically performed by part replacement.
- the transfer member includes a first neck mold, and the preform is conveyed by the first neck mold.
- the first injection core mold may be raised and lowered only at the injection molding station.
- the transfer member is a transfer mold unit having a second neck mold and a second injection core mold. If the transfer mold unit is conveyed by the rotating disk, blow air can be supplied from the second injection core mold into the preform at the blow molding station.
- the upper cylinder is used to raise and lower the first injection core mold in the injection stretch blow molding machine, and to move the transfer mold including the second injection core mold together with the upper base and the turntable. It is essentially unnecessary with a blow molding machine.
- the lower cylinder can pull the upper base without using the upper cylinder, and the transfer mold unit can be clamped via the turntable by the upper base.
- a mold clamping force may act on a rotating disk between an upper base
- the pressure receiving block is fixed to the mold clamping disk driven by the lower cylinder, and the pressure receiving block directly presses the transfer mold unit. Therefore, it is possible to prevent defects during rotation due to the deformation of the rotating disk.
- the lower cylinder and the upper cylinder have substantially the same cylinder inner diameter, and can be set to the same pressure during mold clamping.
- the force of the lower cylinder is offset by the reaction force of the upper cylinder, and the clamping force is only the force of the upper cylinder. .
- a pressure receiving block is fixed to a mold clamping disk driven by an upper cylinder, and this pressure receiving block directly presses the transfer mold unit. Therefore, the mold clamping force does not act on the upper base and the turntable during mold clamping, and deformation of the turntable is prevented.
- the mold clamping force does not act on the upper base or the rotating disk during mold clamping.
- it further includes a stopper rod extending upward from the lower base, and the upper base can be in contact with the stopper rod during the mold clamping and supported at the mold clamping position.
- the force of the lower cylinder is balanced with the reaction force of the upper cylinder when the mold is clamped, and the pressing force is released.
- the upper base comes into contact with the stopper rod and is supported at the clamping position. Therefore, the height position of the upper base at the time of mold clamping is uniquely determined, and the rotating base is not deformed by pressing the rotating base due to the weight of the upper base.
- it may further include a sbaser member that is interposed between the upper base and the stopper rod during the mold clamping and adjusts the mold clamping position of the upper base.
- the distance between the upper base and the lower base during mold clamping may vary depending on the height size of the first injection core mold and the transfer mold unit and the length of the molded product.
- the distance between the upper base and the lower base at the time of mold clamping can be easily adjusted by changing the mold clamping position of the upper base by changing the presence or absence of the sbaser member or the thickness of the sbaser member.
- a first clearance can be provided between opposing surfaces of the pressure receiving block and the upper base during the mold clamping.
- the pressure receiving block is stopped at a position in close contact with the clamped transfer mold unit, and the upper base mold clamping position determined by the stopper rod without being affected by the pressure receiving block is adjusted, so that the pressure receiving block and the upper A first clearance can be ensured between the surfaces facing the base. Thereby, it is ensured that the pressure from the pressure receiving block does not act on the upper base, and it is possible to prevent the turntable from being deformed via the upper base.
- a second clearance can be provided between the opposing surfaces of the upper base and the rotating disk during the mold clamping.
- the clearance between the upper base and the rotating plate is designed so that a clearance is secured when the rotating plate is rotated.
- the force of the pressure receiving block is not transmitted to the upper base, and the upper base is supported by its own weight by the stopper rod, so that the same clearance as that during the rotation conveyance can be ensured between the opposing surfaces of the upper base and the rotating disk.
- the first neck mold is constituted by a pair of split molds, and the pair of split molds are supported so as to be openable and closable along two L-shaped guides fixed to the rotating disk
- the transfer mold unit includes a hole through which a flanged sleeve is inserted, and the flanged sleeve includes a holed flange and a hollow shaft part extending from the holed flange, and the length of the hollow shaft part is A bolt that is formed longer than the hole and is inserted into the flanged sleeve is fastened to the rotating plate to secure the third clearance between the transferring mold unit and the rotating plate, while the transfer is performed.
- a mold unit can be fastened between the flange and the turntable.
- the transfer mold unit can be bolted to the turntable.
- the rotating disk having low rigidity may be deformed by tightening.
- the flanged sleeve fastens the transfer mold unit between the flange and the turntable while ensuring a certain third clearance between the transfer mold unit and the turntable. Therefore, only the fastening force acting on the flange area acts on the rotating disk, the load on the rotating disk is reduced, and deformation of the rotating disk is suppressed. Moreover, it becomes easy to ensure a 3rd clearance between the opposing surfaces of a turntable and an upper base.
- a rotary joint when the blow molding machine is used in an injection blow molding machine, a rotary joint is further provided,
- the transfer mold unit includes a passage, First piping and second piping connected to the rotary joint and the transfer mold unit are further provided, the first piping supplies fluid to the passage, and the second piping supplies the fluid from the passage.
- the rotary joint is A fixed shaft, A housing disposed around the fixed shaft and fixed to the turntable; Have The fixed shaft body communicates with a plurality of circumferential grooves formed on an outer surface, a first vertical hole communicated with one of the plurality of circumferential grooves, and another one of the plurality of circumferential grooves. Including a second longitudinal hole, The housing is connected to the first pipe, the first opening facing the one of the plurality of circumferential grooves, and the second pipe is connected to the other one of the plurality of circumferential grooves. A second opening.
- fluid such as a temperature adjusting medium or blow air can be sucked into and discharged from the transfer mold unit that is rotationally driven together with the rotating disk via the rotary joint.
- the housing connected to the transfer mold unit via the first and second pipes rotates together with the turntable, so that the relative positional relationship between the housing and the transfer mold unit remains unchanged. Therefore, the first and second pipes are not twisted and broken with the rotation of the turntable.
- the blow molding machine having the rotary joint can be applied not only to a dual-purpose machine but also to a dedicated machine as an injection blow molding machine.
- the apparatus further includes a pipe support member that supports the first pipe and the second pipe, and the pipe support member can be moved up and down together with the rotating disk and the rotary joint.
- the lower base An upper base that is raised and lowered above the lower base; A turntable that is rotatably supported by the upper base and stops a plurality of transfer members at a plurality of rotation stop positions; A plurality of processing stations disposed at the plurality of rotation stop positions in a space between the lower base and the upper base; A vertical clamping mechanism for raising and lowering the upper base;
- the plurality of processing stations include at least an injection molding station having an injection mold and a blow molding station having a blow mold, By replacing the parts including the plurality of transfer members, the injection mold and the blow mold, the blow molding machine is used for both an injection stretch blow molding machine and an injection blow molding machine, When the blow molding machine is used in an injection stretch blow molding machine, each of the plurality of transfer members includes a first neck mold, and is clamped with the first neck mold at the injection molding station.
- a first preform is molded using an injection core mold and a first injection cavity mold, and the first preform is held by the first neck mold and conveyed to the blow molding station by rotational conveyance of the rotating disk,
- the first preform disposed in the first blow cavity mold clamped to the first neck mold at the blow molding station is biaxially driven by a longitudinal axis drive of the stretching rod and blow air from the blow core mold.
- each of the plurality of transfer members includes a transfer mold unit having a second neck mold and a second injection core mold, and at the injection molding station, A second preform is molded using a transfer mold unit and a second injection cavity mold to be clamped, and the second preform is held by the transfer mold unit, and the blow molding is performed by rotational conveyance of the rotating disk.
- the second preform placed in a second blow cavity mold that is transported to the station and clamped with the transfer mold unit at the blow molding station is stretched by blow air from the second injection core mold Then, the second container is blow-molded.
- the lower base, the upper base, the turntable, and the plurality of processing stations of one blow molding machine are formed by injection stretch blow molding only by exchanging a mold or the like. It is used for both machine and injection blow molding machine.
- the injection molding station includes a first injection cavity mold
- the blow molding station includes a first blow cavity mold, a blow core mold, and the like.
- a stretching rod is placed.
- the second blow cavity mold is arranged instead of the first blow cavity mold in accordance with the shape of the second container to be blow molded, and the blow core mold and the stretching rod are not used. .
- the rotating disk is intermittently driven at a rotation angle of 180 degrees
- the plurality of processing stations include first and second stations arranged along a rotation conveyance direction, and the first The station becomes the injection molding station, and the second station can be used as both the blow molding station and the take-out station.
- a blow molding machine can be configured with only two stations, an injection molding station and a blow molding station, which are indispensable for an injection stretch blow molding machine and an injection blow molding machine.
- the rotating disk is intermittently driven at a rotation angle of 90 degrees
- the plurality of processing stations include first to fourth stations arranged along a rotation conveyance direction, and the blow molding
- the first station becomes the injection molding station
- the second station becomes a preform temperature control station
- the third station becomes the blow molding station
- the first station When 4 stations are taken out and the blow molding machine is used as an injection blow molding machine, the first station is the injection molding station, the second station is the blow molding station, and the third station is The removal station
- the fourth station may be a cooling station for cooling said second injection core mold.
- the injection stretch blow molding machine has a temperature control station, so that the preform that retains the heat during injection molding can be readjusted to a temperature and temperature distribution suitable for blow molding, and the blow molding quality can be improved. Can do.
- the take-out station separately from the blow molding station, it is sufficient to drop the molded container at the take-out station, whether it is an injection stretch blow molding machine or an injection blow molding machine. A simple take-out device becomes unnecessary.
- the second injection core mold that is exposed after the container is taken out can be cooled. Thus, the second injection core mold need not allow the temperature control medium to pass therethrough.
- the core pin of the second injection core type can be formed with a solid rod without a temperature control medium passage, and the core pin diameter is reduced to, for example, 8 mm or less, It is possible to match the aperture.
- the rotating disk is intermittently driven at a rotation angle of 90 degrees or 180 degrees
- the plurality of processing stations include first to fourth stations arranged along the rotation conveyance direction
- the first station is the injection molding station
- the second station is a preform temperature control station
- the third station is the blow molding station.
- the fourth station serves as a take-out station and the blow molding machine is used as an injection blow molding machine
- the first station serves as the injection molding station
- the third station serves as the blow molding station and the take-out station. Used in the second step.
- the Deployment and the fourth station may be so as not to stop the rotating disk.
- the injection stretch blow molding machine has four stations, so that the blow molding quality can be improved as described above, while the injection blow molding machine has two stations to reduce the number of parts. Manufacturing cost can be reduced.
- the rotating disk is intermittently driven at a rotation angle of 120 degrees
- the plurality of processing stations include first to third stations arranged along a rotation conveyance direction, and the blow molding
- the first station becomes the injection molding station
- the second station becomes the blow molding station
- the third station becomes a take-out station
- the blow molding machine When used in an injection blow molding machine, the first station can be the injection molding station, the second station can be the blow molding station, and the third station can be the take-out station.
- a blow mold clamping mechanism for horizontally clamping the blow mold at the blow molding station can be used for both the injection stretch blow molding machine and the injection blow molding machine.
- the blow mold clamping mechanism can be fixed to the machine base and shared by both models.
- FIG. 1 is a plan view showing the relationship between a rotary disk of a two-station type blow molding machine and two stations.
- FIG. 2 is a plan view showing the relationship between the rotary disk of the three-station type blow molding machine and the three stations.
- FIG. 3 is a plan view showing the relationship between the rotary station of the four-station type blow molding machine and the four stations.
- FIG. 4 is a plan view showing the relationship between the rotary station of a 4 station / 2 station switching type blow molding machine and the 4 station / 2 station.
- FIG. 5 is a plan view showing a four-station injection stretch blow molding machine.
- FIG. 6 is a front view showing a part of the injection stretch blow molding machine of FIG. FIG.
- FIG. 7 is a cross-sectional view taken along the line IIV-IIV in FIG.
- FIG. 8 is a schematic cross-sectional view of the injection molding station provided in the two-station injection blow molding machine when the mold is opened.
- FIG. 9 is a schematic cross-sectional view at the time of mold clamping of an injection molding station of a two-station injection blow molding machine.
- FIG. 10 is a schematic cross-sectional view of a blow molding station provided in a two-station injection blow molding machine at the time of mold clamping.
- FIG. 11 is an enlarged view of a portion A in FIG.
- FIG. 12 is a schematic cross-sectional view of the blow molding station provided in the two-station injection blow molding machine when the container is taken out.
- FIG. 13 is a schematic cross-sectional view of a blow molding station provided in a two-station injection blow molding machine during rotational conveyance.
- FIG. 14 is a view showing a core cooling station provided in a four-station injection blow molding machine.
- FIG. 15 is a view showing a rotary joint provided in a two-station injection blow molding machine.
- FIG. 16 is a side view of the blow molding machine showing the rotary joint and the pipe support member.
- FIG. 17 is a cross-sectional view of the rotary joint.
- FIG. 18 is a view showing a housing of the rotary joint.
- FIG. 19 is a diagram illustrating a fixed shaft body of the rotary joint.
- FIG. 20 is a cross-sectional view of the relay pipe connected to the lower part of the rotary joint.
- FIG. 21 is a cross-sectional view of a housing having six independent paths.
- FIG. 22 is a front view showing mold clamping at an injection molding station of an injection stretch blow molding machine.
- FIG. 23 is a front view showing mold clamping at an injection molding station of an injection blow molding machine.
- 24 is a partially enlarged view of FIG.
- FIG. 25 is an explanatory view showing the mold clamping shown in FIG. 23 in comparison with the comparative example.
- FIG. 26 is an enlarged view of a portion A showing a comparative example portion of FIG.
- FIG. 27 is an enlarged view of part B showing the embodiment part of FIG.
- FIG. 28 is an enlarged view showing the mounting structure of the transfer mold unit.
- FIGS. 1 to 4 schematically show processing stations 1A to 4D arranged at a plurality of rotation stop positions at a predetermined rotation angle of the turntable 20.
- FIG. Any of the blow molding machines shown in FIGS. 1 to 4 is also used as an injection stretch blow molding machine STR and an injection blow molding machine INJ.
- the turntable 20 has openings 21 to 24 that allow passage of components arranged facing the processing station or prevent interference with the components.
- FIG. 1 shows a two-station type.
- FIG. 2 shows a three station type. 3 and 4 show the 4-station type. 2 does not need the openings 22 and 24 at the two locations indicated by the broken lines, but has the openings 22 and 24 to be used together with the station type of FIGS. You may do it.
- the turntable 20 dedicated to the two stations in FIG.
- the radii of the rotary stations 20 of 2 stations, 3 stations and 4 stations are D1, D2 and D3, respectively.
- two processing stations arranged at two rotation stop positions at a rotation angle of 180 degrees of the turntable 20 are an injection molding station (first station) 1A and a blow molding station (second molding station). Station) 2A.
- first station injection molding station
- second molding station blow molding station
- Station 2A blow molding station
- the blow molding machine is used for either the injection stretch blow molding machine STR or the injection blow molding machine INJ
- the preform is injection molded at the injection molding station 1A
- the preform is blow molded into a container at the blow molding station 2A.
- the blow molding station 2A is also used as a take-out station for taking out containers from the molding machine.
- three processing stations arranged at three rotation stop positions at a rotation angle of 120 degrees of the turntable 20 are an injection molding station (first station) 1B and a blow molding station (first 2 station) 2B and a take-out station (third station) 3B.
- the take-out station 3B is arranged separately from the blow molding station 2B.
- the third station 3B in FIG. 3 may also serve as a cooling station for cooling the injection core mold that is exposed after the container is taken out.
- the blow molding machine is used as the injection stretch blow molding machine STR, all of the first to fourth stations 1C to 4C are used.
- the first station is an injection molding station
- the second station 2C is a temperature control station
- the third station 3C is a blow molding station
- the fourth station is a take-out station.
- the blow molding machine is used as the injection blow molding machine INJ
- the first and third stations 1C and 3C are used
- the first station 1C is an injection molding station
- the third station is a blow molding station.
- the second and fourth stations 2C and 4C are not used. Therefore, when the blow molding machine is used as the injection blow molding machine INJ, the turntable 20 may be stopped at two stop positions with a rotation angle of 180 degrees as in FIG.
- the first to fourth stations 1C to 4C are used regardless of whether the blow molding machine is used for either the injection stretch blow molding machine STR or the injection blow molding machine INJ. used.
- the first to fourth stations 1A to 4D are the same as the first to fourth stations 1C to 4C in FIG.
- the first station 1D is an injection molding station
- the second station 2D is a blow molding station
- the third station 3D is a take-out station
- the fourth station 4D is an injection core type. It becomes a cooling station.
- the present invention combines a single blow molding machine with the injection stretch blow molding machine STR and the injection blow molding machine INJ, thereby reducing the molding cost of containers produced in a variety of small quantities. It is.
- the four-station injection stretch blow molding apparatus 50 includes a machine base 52, a lower base 54, an upper base 56, a traction plate 58, and a cylinder fixing plate 60.
- the upper base 56, the traction plate 58, and the cylinder fixing plate 60 are connected and fixed by a plurality of, for example, four tie bars 62 (see FIG. 5) penetrating the lower base 54.
- the machine base 52 has a box shape with an internal cavity, and the injection device 64 is attached to one side of the upper surface thereof.
- the lower base 54 is fixed to the upper surface of the other side of the machine base 52.
- the upper base 56 is disposed above the lower base 54 with a predetermined distance from the lower base 54, and rotatably supports a rotating disk 66 (the rotating disk 20 in FIG. 3) on the lower surface side.
- the upper base 56 is connected and fixed to a midway position between the two tie bars 62 on the injection device 64 side and the upper ends of the two tie bars 62 on the opposite side to the injection device 64.
- a plurality of processing stations 1C to 4C shown in FIG. 3 are arranged in a space between the lower base 54 and the upper base 56 on the machine base 52 and at a plurality of rotation stop positions of the turntable 66.
- an injection molding station 68 (corresponding to 1C in FIG. 3) on the injection device 64 side, a blow molding station 70 (corresponding to 3C in FIG. 3) at the opposite position, an injection molding station 68 and a blow molding station.
- a temperature control station 72 (corresponding to 2C in FIG. 3) and a take-out station 74 (corresponding to 4C in FIG. 3) are provided at positions intersecting 70 and 90 degrees.
- an injection cavity mold (first injection cavity mold) 78 is mounted on the lower base 54 via a hot runner mold 76 that makes nozzle touch with the injection device 64.
- the blow molding station 70 includes a blow cavity mold (first blow cavity mold) 84 formed of a split mold that can be clamped by a blow mold clamping mechanism 82 including a blow mold clamping cylinder 80. It is provided on the lower base 54.
- a blow cavity mold first blow cavity mold
- blow mold clamping mechanism 82 including a blow mold clamping cylinder 80. It is provided on the lower base 54.
- a temperature control pot 86 is fixed on the lower base 54 as shown in FIG.
- a shooter 88 for taking out the molded product is mounted on the lower base 54 (not shown in FIG. 6).
- first neck type a plurality of, for example, two neck types (first neck type) are provided on the lower surface of the turntable 66 corresponding to the positions of the injection molding station 68, the temperature control station 72, the blow molding station 70, and the take-out station 74, respectively.
- 90 is provided.
- the neck mold 90 is constituted by a split mold, and each of the split molds is attached to a neck support plate 92 made of a divided plate, and the neck mold 90 can be opened and closed by opening and closing the neck support plate 92.
- the neck mold 90 and the neck support plate 92 that supports the neck mold 90 so as to be openable and closable constitute a transfer member held by the rotating disk 66.
- the turntable 66 can be intermittently rotated 90 degrees by an electric motor 94 provided on the upper base 56, and the neck mold 90 is transferred to the injection molding station 68, the temperature control station 72, the blow molding station 70, and the take-out station 74. And can be sequentially conveyed.
- the rotation stop position of the turntable 66 is positioned by the positioning mechanism 96, but only the servo motor positioning means may be used.
- a temperature control core lifting cylinder 98 that moves up and down a temperature control core (not shown) at a position corresponding to the temperature control station 72, and a blow core type lift cylinder 102 that lifts and lowers the blow core mold 100 at a position corresponding to the blow molding station 70.
- a stretching rod lifting cylinder 106 that lifts and lowers the stretching rod 104
- an ejection cam lifting cylinder 110 that lifts and lowers an ejection cam 108 for opening the neck support plate 92 at a position corresponding to the take-out station 74, and the like are provided.
- the cylinder fixing plate 60 is fixed to the upper ends of two tie bars 62 located on the injection molding station 68 side above the upper base 56, and the injection core mold 112 is interposed between the cylinder fixing plate 60 and the upper base 56.
- An injection core mold clamping plate (clamping machine in a broad sense) 114 to which is attached is attached along the two tie bars 62 so as to be movable up and down.
- a cooling medium is circulated through the injection core mold 112, a cooling medium circulation device is omitted.
- An injection core mold clamping cylinder (upper cylinder in a broad sense) 116 is attached on the cylinder fixing plate 60, and the tip of the piston 118 of the injection core mold clamping cylinder 116 is attached to the injection core mold clamping plate 114. It is connected.
- the traction plate 58 is connected and fixed to the lower ends of the four tie bars 62 in the machine base 52.
- a neck mold clamping cylinder (lower cylinder in a broad sense) 120 as a saddle mold clamping means is attached to the traction plate 58 at a position below the injection molding station 68, and a piston 122 of the neck mold clamping cylinder 120 is disposed at the lower part. It is connected to the lower surface of the base 54.
- the saddle type clamping mechanism of the upper base 56 includes a traction plate 58, a tie bar 62, and a cylinder 120.
- the lower surface of the upper base 56 abuts against a stopper 138 provided on the upper part of the blow mold clamping mechanism 82 and is positioned at the lower limit position of the upper base 56.
- the blow cavity mold 84 is clamped by the temperature control pot 86 and the blow mold clamping mechanism 82 with respect to the neck mold 90.
- the injection core mold clamping plate 114 is lowered by the stroke L2 by driving the injection core mold clamping cylinder 116, whereby the injection core mold 112 and the neck mold 90 are clamped.
- the preform (first preform) 124 is injection-molded by injecting molten resin into the injection cavity mold 78 from the injection device 64.
- the lowering stroke L2 of the injection core mold clamping cylinder 116 is the minimum stroke from the position where the injection core mold 112 is retracted from the turntable 66 to the mold clamping position. Can be shortened.
- the injection core mold clamping cylinder 116 since the injection core mold clamping cylinder 116 only needs to have a clamping force sufficient to clamp the injection core mold 112, the injection core mold clamping cylinder 116 can be made relatively small.
- the temperature control station 72 inserts a temperature control core (not shown) into the temperature control pot 86 by the temperature control core lifting cylinder 98 to control the temperature of the preform 124. I do.
- the blow core mold 100 is lowered by the blow core mold lifting cylinder 102, the blow core mold 100 is clamped with respect to the neck mold 90, and the stretching rod 104 is lowered by the stretching rod lifting cylinder 106.
- a preform (temperature controlled) by supplying blow air into the cavity mold 84 is biaxially stretched and blown to form a bottle (first container) 126.
- the eject cam elevating cylinder 110 lowers the eject cam 108 to open the neck mold 90 via the neck support plate 92, the bottle 126 is dropped, and the shooter 88 discharges the bottle 126 to the outside.
- type 90 is made into the mold-clamping state because a pair of division board which comprises the neck support plate 92 is always set to a closed state with a spring.
- the pair of split plates are provided with wedge holes (not shown) at both ends in the longitudinal direction. The opening of the neck mold 90 is performed by lowering the eject cam 108 driven by the eject cam raising / lowering cylinder 110 toward the wedge hole and driving the dividing plate to open.
- the blow cavity mold 84 is opened by the blow mold clamping mechanism 82, the upper base 56 is raised by the neck mold clamping cylinder 120, and the injection core mold clamping cylinder 116 and the temperature control core are moved up and down.
- the injection core mold 112, the temperature control core, the blow core mold 100, the stretching rod 104, and the eject cam 108 are retracted from the position of the rotary disk 66 by the cylinder 98, the blow core type lifting cylinder 102, the stretching rod lifting cylinder 106, and the eject cam lifting cylinder 110. Then, the turntable 66 can be rotated.
- the turntable 66 can be intermittently rotated by the electric motor 94 to sequentially perform processing at each processing station.
- an auxiliary mold clamping cylinder 128 is provided below the blow molding station 70 of the traction plate 58, and the tip of a piston (not shown) of the auxiliary mold clamping cylinder 128 is connected to the lower base 54, and an injection molding station.
- the up and down movement of the upper base 56 on the 68 side and the blow molding station 70 side is balanced so that the up and down can be performed smoothly.
- a synchronizing means 130 for synchronizing the neck mold clamping cylinder 120 and the auxiliary mold clamping cylinder 128 is disposed in the machine base 52.
- the synchronization means 130 includes two racks 132 that are respectively suspended from the lower base 54 on the injection molding station 68 side and the blow molding station 70 side, and between the injection molding station 68 and the blow molding station 70 on the traction plate 58. And two pinions 136 that are fixed to the rotation shaft 134 and mesh with the racks 132.
- the injection molding station 68 is also provided with a stopper rod 140 for assisting in restricting the lowering limit of the upper base 56.
- FIGS. 11 Two-Station Injection Blow Molding Machine A two-station type injection blow molding machine 200 that can be switched by component replacement using the basic structure of the four-station injection stretch blow molding machine 50 shown in FIGS. 5 to 7 is shown in FIGS. 11 will be described.
- the temperature control station 72 (2C) and the take-out station 74 (4C) of the four-station injection stretch blow molding machine 50 are not used, and the preform or the second for supporting the preform is used. Only the injection core mold passes. Since the second injection core mold rises when the mold is opened, it does not interfere with the temperature control station 72 (2C) and the extraction station 74 (4C) when moving to the blow molding station. . However, when there is a member that interferes with the temperature control medium of the second injection core type or the air supply pipe (for example, a temperature control pot), it is necessary to remove it.
- the injection molding station 68 (1C) of the four-station injection stretch blow molding machine 50 is changed to the injection molding station 251 (1C) of the injection blow molding machine 200 shown in FIGS.
- the blow molding station 68 (3C) of the four-station injection stretch blow molding machine 50 is changed to the blow molding station 202 (3C) of the injection blow molding machine 200 shown in FIGS. 8 and 9 by exchanging mold parts. .
- a transfer member (transfer mold) for injection blow is used instead of the transfer member constituted by the neck mold 90 and the neck support plate 92 shown in FIG. Unit) 210 is attached.
- the transfer member 210 includes, for example, a second neck mold 211 having a pair of split molds, an injection core mold 212, a neck mold fixing plate 213, a neck mold pressing plate 214, a core fixing plate 215, a core pressing plate 216, and a heat insulating member.
- a plate 217 can be included.
- the neck type fixing plate 213 includes a pair of divided plates, and a pair of second neck types 211 are fixed thereto.
- the neck type fixing plate 213 is provided with a passage for a cooling medium.
- the neck-type pressing plate 214 guides opening and closing the divided plates of the neck-type fixing plate 213.
- the neck-type presser plate 214 is urged upward by a spring (not shown) so as to be in close contact with the core fixing plate 215 at all times. Thereby, the clamping state of the injection core mold 212 and the neck mold 211 is set.
- the injection core mold 212 is held by the core pressing plate 216 and the core fixing plate 215.
- a temperature control medium supply / discharge passage 216A is formed in the core holding plate 216, and a blow air supply passage 215A is formed in the core fixing plate 215.
- either one of the core fixing plate 215 and the core holding plate 216 may be provided with a temperature adjusting medium supply / discharge passage and a blow air supply passage. Details of the injection core mold 212 will be described later with reference to FIG.
- the hot runner mold 76 that is in nozzle touch with the injection device 64 is fixed to the lower base 54 and can be shared with the injection stretch blow molding machine 50.
- the second injection cavity mold 220 of the injection blow molding machine 200 is mounted on the hot runner mold 76.
- FIG. 8 shows a mold opening state in which the upper base 56 is in the upper limit position
- FIG. 9 shows a mold clamping state in which the upper base 56 is in the lower limit position.
- the dimension L4 is a distance from the lower surface of the upper base 56 (the upper surface of the turntable 66) to the upper surface of the lower base 54 when the mold is opened.
- the lengths of the body portions of the first and second preforms 124 and 205 are smaller than the moving stroke L1 of the upper base 56.
- L5 ⁇ L4 may be set.
- the thickness of the transfer member 210 shown in FIGS. 8 and 9 is larger than that of the transfer member composed of the neck mold 90 and the neck support plate 92 shown in FIG. Accordingly, it is necessary to determine the dimensions L3 to L5 in consideration of the difference in thickness between the transfer members of both models.
- the first container 126 formed by the injection stretch blow molding machine 50 is stretched also in the vertical axis by a beverage bottle or the like, so that the total height is large.
- the second container molded by the injection blow molding machine 200 is a medicine bottle, a cosmetic container, a lactic acid beverage container, a light bulb cover, etc., and the overall height is smaller than the first container 126.
- the dimensions L3 to L5 are determined based on the total height of the first container molded by the injection stretch blow molding machine 50 and the first preform 124 therefor, the dimensions L3 to L5 are also satisfied by the injection blow molding machine 200. It is possible.
- the injection core mold clamping cylinder 116 shown in FIG. 6 and the injection core mold clamping plate 114 connected to the piston 118 are not used. Is also possible. These members do not have to be removed as long as there is no hindrance to the injection molding operation or the rotation conveyance operation at the injection molding station 201 (1C).
- a pressing (pressure receiving) block may be installed on the injection core mold clamping plate 114 instead of the injection core mold, and the injection core mold clamping plate 114 may be moved up and down by the injection core mold clamping cylinder 116. This point will be described later with reference to FIGS.
- FIGS. 10, 12 and 13 show the mold clamping state at the blow molding station 202 (3C) of the injection blow molding machine 200.
- FIG. FIG. 11 is an enlarged view of part A of FIG. 10 and shows details of the injection core mold 212.
- a second blow cavity mold 230 including a pair of split molds is disposed in the blow molding station 202 (3C).
- a pair of split molds of the second blow cavity mold 230 is attached to a blow mold clamping mechanism 82 shown in FIG.
- the bottom mold 232 shown in FIG. 10 is opened and closed integrally with one of the pair of split molds constituting the second blow cavity mold 230.
- the transfer member 210 which is opened at the injection molding station 201 (1C) shown in FIG. 8 and supports the second preform 205, is carried into the blow molding station 202 (3C) by a 180 degree rotation of the turntable 66 (20). Is done. Thereafter, the upper base 56 is lowered, and the second blow cavity mold 230 is laterally clamped by the blow mold clamping mechanism 82 shown in FIG. 6, so that the mold clamping state shown in FIG. 10 is set.
- the second preform 205 has the second blow cavity mold 230. It is blow-molded into a second container 206 (see FIG. 12) having a body shape and a bottom shape according to the cavity surface 231.
- the stretch rod 104 is not used. The stretching rod 104 of the injection stretch blow molding machine 50 is removed when it interferes with the transfer unit 210. Since the stretching rod 104 is not used, the second preform 205 is stretched in the horizontal axis direction while being hardly stretched in the vertical axis.
- the second injection core mold 212 includes a first core pin 212A and a second core pin 212B, and an air flow path 212C and an air outlet are provided between the first core pin 212A and the second core pin 212B. 212D is formed.
- the air flow path 212C communicates with the blow air supply path 215A shown in FIG.
- the first core pin 212A has a body shape of the second preform 205, and the upper part thereof is inserted into the second core pin 212B.
- the first core pin 212A has a hollow shape with the tip closed, and the temperature adjustment medium circulation channel 212E provided in the first core pin 212A communicates with the temperature adjustment medium supply / discharge passage 216A shown in FIG.
- the second core pin 212 ⁇ / b> B has a neck portion inner surface shape of the second preform 205, and an upper outer surface thereof is in contact with the second neck mold 211.
- the air outlet 212D is formed around the inner surface of the lower end of the neck portion of the second preform 205, and high-pressure blow air is blown out in the blow molding process.
- FIG. 12 shows a process of taking out the second container 206 at the blow molding station 202 (3C).
- the second blow cavity mold 230 is opened by the blow mold clamping mechanism 82.
- a space in which the neck mold 211, the neck mold fixing plate 213, and the neck pressing plate 214 can descend is secured.
- a neck lowering cylinder (not shown) for driving the neck pressing plate 214 to descend is disposed on the upper base 56.
- the driven rod driven by the driving of the cylinder drives the neck pressing plate 214 downward from the lower surface of the core fixing plate 215 against the biasing force of a spring (not shown) and presses the neck fixing plate 213 downward.
- the container 6 whose neck is held by the second neck mold 211 is driven to release from the first core pin 212A.
- the split mold constituting the second neck mold 211 is driven to open, and the second container 206 can be released from the neck mold 211.
- the second neck mold 211 is in a mold-clamping state by the pair of divided plates constituting the neck mold fixing plate 213 being always closed by a spring.
- the pair of split plates are provided with wedge holes (not shown) at both ends in the longitudinal direction.
- the mold opening of the second neck mold 211 is performed by lowering the eject cam driven by the eject cam raising / lowering cylinder disposed in the blow molding station 202 (3C) toward the wedge hole and driving the dividing plate to open.
- a take-out device (not shown) is driven and the rail member is driven. 240 is drawn below the second container 206. Therefore, the second container 206 dropped from the neck mold 211 is received by the rail member 240. Thereafter, by returning the rail member 240 to the original position, the second container 206 is taken out of the apparatus.
- the removal of the second container 206 may be an arm member that holds and removes the neck portion of the second container 206 instead of the rail member 240.
- FIG. 13 shows the rotational conveyance process of the transfer member 210 at the blow molding station 202 (3C).
- the transfer member 210 when the upper base 56 is returned to the upper limit position, the transfer member 210 is raised to a height position at which the first core pin 212 ⁇ / b> A does not interfere with the second blow cavity mold 230 and the second injection cavity mold 220. . Therefore, by rotating the turntable 66 (20) in this state, the transfer member 210 can be moved back to the injection molding station 201 (1C).
- the second blow cavity mold 230 in preparation for the next blow molding, is moved in the mold closing direction from the mold open state shown in FIG. Thereby, the mold closing time and mold clamping time of the second blow cavity mold 230 are shortened.
- one blow molding machine can be switched to both the injection stretch blow molding machine 50 and the injection blow molding machine 200 by exchanging the parts, which enables high-mix low-volume production. Appropriate versatility is ensured.
- the injection stretch blow molding has the temperature control station 2C and the dedicated take-out station 1D, the molding cycle for forming a container having high blow quality can be accelerated.
- the injection blow molding machine is the smallest two stations, the number of parts is small and it can be manufactured at low cost.
- the injection molding station 1D shown in FIG. 4 matches the injection molding station 1C shown in FIGS. .
- the blow molding station 2D shown in FIG. 4 corresponds to the blow molding station 3C shown in FIGS.
- the container taking-out process shown in FIG. 12 is not carried out, and the mold opening and the rotary conveyance are carried out while holding the second container 206 on the transfer member 210 shown in FIG.
- the take-out process of the second container 206 shown in FIG. does not exist in the take-out station 3D.
- a cylinder for driving the neck-type presser plate 213 to descend, an eject cam elevating cylinder, etc. need to be arranged in the take-out station 3D.
- FIG. 14 shows the core cooling station 4D shown in FIG.
- the transfer member 210 is transported to the core cooling station 3D by the turntable 66 (20) with the first core pin 212A exposed. This is because the second container 206 has already been taken out at the take-out station 3D on the upstream side of the core cooling station 4D.
- a core cooling unit 260 is supported by rods 251 of two cylinders 250 fixed to the lower base 54, for example.
- the core cooling unit 260 has a number of holes 261 large enough to pass through the first core pins 212 ⁇ / b> A held by the transfer member 210 so as to match the number of the first core pins 261.
- a refrigerant supply path 262 is formed in the circumferential direction around the hole 261 as indicated by a broken line.
- a plurality of refrigerant outlet holes 263 penetrating from the refrigerant supply path 262 toward the inner peripheral surface defining the hole 261 are formed at equal intervals along the circumferential direction of the hole 261.
- the core cooling unit 260 stands by at a lower position where it does not interfere with the first core pin 212A. After the transfer member 210 is carried in, the two cylinders 250 are driven to reciprocate the rod 251 along the vertical direction.
- the cooling unit 260 held by the rod 251 reciprocates up and down in a state where the first core pin 212A is inserted into the plurality of holes 261.
- the first core pin 212A can be cooled by ejecting a refrigerant such as air from the refrigerant ejection hole 213 during the vertical movement.
- a refrigerant such as air from the refrigerant ejection hole 213 during the vertical movement.
- the first core pin 212A can be sufficiently cooled before returning the transfer member 210 to the injection molding station 1D.
- the second injection core mold 212 does not need to pass a temperature control medium inside. Thereby, even if it is a narrow mouth container which accommodates eye drops, mascara, etc., injection blow molding becomes possible.
- the first core pin 212A of the second injection core mold 212 can be formed of a solid rod without a temperature adjusting medium passage, and the core pin diameter can be reduced to, for example, 8 mm or less to match the diameter of the narrow mouth container. Because. Further, since the temperature control medium supply / discharge passage on the transfer member 210 is not required, the structure of the transfer member 210 is simplified, and the die cost for the transfer member 210 is also reduced.
- the four-station type blow molding machine shown in FIG. 4 is shown in FIG. 3 in that a narrow-necked container can be injection blow-molded, and because it has a dedicated take-out station 3D, the molding cycle becomes faster. Better than blow molding machines.
- 3 Station Type Blow Molding Machine The construction of a 3 station injection stretch blow molding machine with the 3 station type blow molding machine shown in FIG. 2 is controlled by the temperature control from the injection stretch blow molding machine 50 shown in FIGS.
- the station 2C may be deleted and intermittent rotation of the turntable 66 (20) may be performed every rotation angle of 120 degrees.
- the injection molding station 1D shown in FIG. 2 matches the injection molding station 1C shown in FIGS. .
- the blow molding station 2B shown in FIG. 2 corresponds to the blow molding station 3C shown in FIGS.
- the container removing step shown in FIG. 12 is not carried out, and the mold opening and rotating conveyance are carried out while holding the second container 206 on the transfer member 210 shown in FIG. Same as 2D.
- the take-out process of the second container 206 shown in FIG. 12 is performed.
- the core cooling process shown in FIG. 14 can also be performed. This is because the same state as in FIG. 14 can be secured after the second container 206 is taken out at the take-out station 3B.
- the rail member 240 of the take-out device shown in FIG. 12 may be arranged in the take-out station 3B so that the falling second container 206 does not interfere with the cooling unit 260.
- the three-station type blow molding machine shown in FIG. 2 is not suitable for the first container 126 having a complicated shape because injection stretch blow molding is performed without temperature control of the preform, but there is a temperature control station. Since the three processing stations 1B to 3B can be arranged closer to each other, the diameter D2 of the turntable 66 (20) can be made smaller than the diameter D3 of FIGS. 3 and 4, and the size can be reduced. Further, the injection blow molding can speed up the molding cycle as compared with the two-station type of FIG. In addition, if the core cooling station shown in FIG.
- Two-station type blow molding machine The two-station type blow molding machine shown in FIG. 1 is configured so that the second and fourth stations 2C and 4C are excluded from the four-station / two-station switching type blow molding machine shown in FIG. Good. Further, the rail member 240 of the take-out device shown in FIG. 12 is arranged in the blow molding station 3A of FIG. 1 in the case of an injection stretch blow molding machine as well as in the case of an injection blow molding machine.
- the two-station type blow molding machine shown in FIG. 1 is not suitable for the first container 126 having a complicated shape because injection stretch blow molding is performed without temperature control of the preform. Since the two processing stations 1A and 3A can be arranged closer to each other by the absence of the take-out station, the diameter D1 of the turntable 66 (20) can be made smaller than the diameters D2 and D3 of FIGS. Is planned.
- Rotary Joint of Injection Blow Molding Machine Using the basic structure of the four-station injection stretch blow molding machine 50 shown in FIGS. 5 to 7, the injection molding station 201 of the two-station type injection blow molding machine 200, which can be switched by replacing parts, The blow molding station 202 is shown schematically in FIG. As shown in FIG. 15, a transfer member 210 for injection blow is fixed to the turntable 66 at two positions separated by 180 ° in rotation angle.
- the two transfer members 210 are each provided with a temperature control medium supply / discharge passage 216A as shown in FIG. As shown in FIG. 15, a rotary joint 270 for supplying and discharging the temperature adjustment medium to and from the temperature adjustment medium supply / discharge passage 216 ⁇ / b> A of the two transfer members 210 that are rotationally driven by the rotation disk 66 is supported by the rotation disk 66. ing.
- Each of the two transfer members 210 is connected to a rotary joint 270 by first and second pipes 210A and 210B. The temperature adjustment medium is supplied from the rotary joint 270 to the transfer member 210 through the first pipe 210A, and the temperature adjustment medium is returned from the transfer member 210 to the rotary joint 270 through the second pipe 210B.
- FIG. 16 is a side view of the injection blow molding machine 200.
- the lower end of the rotary joint 270 whose upper end is supported by the rotary disc 66 is a traction disc via a pipe support member 290 that supports two pipes 291 and 292. 58. Since the traction board 58 and the rotary board 66 are lifted and lowered integrally, the rotary joint 270 and the pipe support member 290 are also lifted and lowered integrally.
- One pipe 291 supported by the pipe support member 290 supplies a temperature control medium, and the other pipe 292 discharges the temperature control medium.
- the rotary joint 270 is assembled as shown in FIG. 17 with a fixed shaft body 280 shown in FIG. 19 arranged inside a cylindrical housing 271 shown in FIG.
- the flange 272 of the housing 271 is bolted to the turntable 66, and the housing 271 rotates integrally with the turntable 66.
- the fixed shaft body 280 is fixed to the relay pipe portion 285 and is not rotated.
- the housing 271 has a through hole 273 into which the fixed shaft body 280 is inserted.
- O-ring grooves 274A, 274B, 274C having an inner diameter larger than the inner diameter of the through hole 273 are formed at three positions in the vertical direction.
- a region 275 defined by the O-rings 274 ⁇ / b> A and 274 ⁇ / b> B and the rotary shaft 280 is a supply passage, and is defined by the O-rings 270 ⁇ / b> B and 274 ⁇ / b> C and the rotary shaft 280.
- the region 276 that becomes a discharge passage becomes.
- the first opening 275A communicates with a first pipe 210A connected to one transfer member 210
- the first opening 275B communicates with a first pipe 210A connected to the other transfer member 210.
- two second openings 276 A and 276 B communicating with the discharge passage 276 are opened in the peripheral surface of the housing 271.
- the second opening 276A communicates with a second pipe 210B connected to one transfer member 210
- the second opening 276B communicates with a second pipe 210B connected to the other transfer member 210.
- the fixed shaft body 280 rotatably supports the housing 271 via bearings 277A and 277B.
- the fixed shaft body 280 has two circumferential grooves 281 and 282 on the outer peripheral surface corresponding to the supply passage 275 and the discharge passage 276 of the housing 271.
- the circumferential groove 281 communicates with the lower end opening via the first vertical hole 281A
- the circumferential groove 282 communicates with the lower end opening via the second vertical hole 282A.
- a relay pipe part 285 connected to the lower end of the fixed shaft body 280 is provided.
- the relay pipe portion 285 incorporates a passage 286 that communicates with the lower end opening of the vertical hole 281A of the fixed shaft body 280 and a passage 287 that communicates with the lower end opening of the vertical hole 282A of the fixed shaft body 280.
- the passage 286 is in communication with the pipe 291 supported by the pipe support member 290.
- the passage 287 communicates with the pipe 292 supported by the pipe support member 290.
- the temperature control medium can be circulated through the rotary joint 270 to the two transfer members 210 that are rotationally driven together with the turntable 66.
- the housing 271 connected to the two transfer members 210 via the pipes 210A and 210B rotates together with the turntable 66, the relative positional relationship between the housing 271 and the two transfer members 210 remains unchanged. Therefore, the pipes 210 ⁇ / b> A and 210 ⁇ / b> B are not twisted and broken with the rotation of the turntable 66.
- the rotary joint is used to supply and discharge the temperature control medium to and from the two transfer members 210, but other fluids may be supplied and discharged.
- An example of the other fluid is blow air.
- the blow air may be supplied through the air supply path 215A, but a path for exhausting the air in the blow molded container can be provided.
- FIG. 21 shows a rotary joint housing 300 having six independent paths capable of supplying and discharging a temperature control medium, supplying and discharging blow air, and supplying and discharging a cooling medium.
- the housing 300 six supply / discharge paths 301A to 301F partitioned by seven O-ring grooves 302 are formed. If a fixed shaft body suitable for the housing 300 is disposed inside, a rotary joint having six independent paths can be provided.
- the two paths are temperature control medium supply / discharge paths, and the other two paths are cooling medium paths, which need to be insulated from each other.
- the two central passages 301C and 301D in the vertical direction are used as blow air supply / discharge passages.
- the passages 301A and 301B for supplying and discharging the temperature control medium and the passages 301E and 301F for supplying and discharging the cooling medium are provided. Air insulation can be done.
- FIG. 22 shows mold clamping in an injection molding station of an injection stretch blow molding machine. Of the members shown in FIG. 22, members having the same functions as those in FIG.
- the cylinder fixing plate 60 is fixed to the upper ends of the two tie bars 62 moved up and down by the lower cylinder 120, and the upper cylinder 116 is fixed to the cylinder fixing plate 60.
- the tip of the piston 118 of the upper cylinder 116 is connected to the mold clamping plate 114.
- the injection core mold 112 is fixed to the mold clamping plate 114 by fixing the injection core mold fixing plate 112 ⁇ / b> A to the mold clamping plate 114 with bolts.
- an opening 56 ⁇ / b> A is provided in the upper base 56 so as to face one opening 21 (see FIGS. 1 to 4) provided in the turntable 20.
- FIG. 23 shows injection mold clamping in the injection blow molding machine using the mechanism shown in FIG. As described above, since the transfer mold unit (transfer member) 210 shown in FIG. 23 is fixed to the turntable 20, the transfer mold unit 210 is clamped only by the lower cylinder 120 without using the upper cylinder 116. It is possible. However, in FIG. 23, the transfer mold unit 210 is clamped using the upper cylinder 116 as in FIG.
- a pressure receiving block 400 shown in FIG. First, when the lower cylinder 120 is driven, the upper base 56 and the turntable 20 are lowered via the tie bars 62, and the transfer mold unit 210 supported by the turntable 20 is closed. At this time, the pressure receiving block 400 is also lowered through the cylinder fixing plate 60, the upper cylinder 116, and the mold clamping plate 114. At that time, the pressure receiving block 400 passes through the openings 56 and 21 and is lowered without interfering with the upper base plate 56 and the turntable 20.
- the pressure receiving block 400 fixed to the lowered mold clamping plate 114 is further lowered from the upper cylinder 116. Thereby, the pressure receiving block 400 can directly press the transfer mold unit 210 and clamp the transfer mold unit 210 against the injection cavity mold 220.
- the case where the lower cylinder 120 pulls the upper base 56 without using the upper cylinder 116 and the transfer mold unit 210 is clamped by the upper base 56 via the turntable 20 is compared with the present embodiment.
- a mold clamping force acts on the rotating disk 20 between the upper base 56 and the transfer mold unit 210.
- transform transform.
- the pressure receiving block 400 is fixed to the mold clamping plate 114 driven by the lower cylinder 120 together with the upper base 56, and the pressure receiving block 400 directly presses the transfer mold unit 210.
- the base 56 and the turntable 20 are not tightened. Therefore, it is possible to prevent a failure during rotation due to the deformation of the turntable 20.
- the lower cylinder 120 and the upper cylinder 116 have substantially the same cylinder inner diameter, and can be set to the same pressure during mold clamping. In order to set the lower cylinder 120 and the upper cylinder 116 to the same pressure, a circuit of a pressure medium such as oil may be short-circuited. Since the pressing force of each of the lower cylinder 120 and the upper cylinder 116 is equal to the pressure receiving area ⁇ pressure, they are equal. The equal pressing force of each of the lower cylinder 120 and the upper cylinder 116 acts downward.
- the pressure receiving block 400 is fixed to the mold clamping disk 114 driven by the upper cylinder 116, and the pressure receiving block 400 directly presses the transfer mold unit 210. Thereby, the transfer mold unit 210 can be clamped. Therefore, the mold clamping force does not act on the upper base 56 and the turntable 20 at the time of mold clamping, and deformation of the turntable 20 is prevented.
- the injection core mold 112 since the injection core mold 112 is fixed to the mold clamping disk 114 driven by the upper cylinder 116, the injection core mold 112 can be clamped together with the neck mold 90 pressed by the injection core mold 112. Also at this time, the clamping force does not act on the upper base 56 and the turntable 20.
- the stopper rod 140 shown in FIG. 7 is for assisting in restricting the lowering limit of the upper base 56.
- the stopper rod 140 is for stopping the downward movement of the upper base 56 when an incorrect mold thickness is set or when the inclination of the upper base 56 is more than a predetermined angle. Therefore, as shown in the comparative example of FIG. 26 using the stopper rod 140, a clearance ⁇ 4 is secured between the stopper rod 140 and the upper base 56 side during mold clamping.
- the stopper rod 410 whose upper end 410A is fixed to the lower base 54 and extends upward is different in structure and purpose from the stopper rod 140 of FIG.
- the upper end 410B of the stopper rod 410 abuts the upper base 56 side without a gap during mold clamping so that the upper base 56 can be supported at the mold clamping position.
- the force of the lower cylinder 120 balances with the reaction force of the upper cylinder 116 when the mold is clamped, and the pressing force is released.
- the upper base 56 abuts on the stopper rod 410 and is supported at the clamping position. Therefore, the height position of the upper base 56 at the time of mold clamping is uniquely determined, and the rotary base 20 is not deformed by pressing the rotary base 20 by its own weight or the like.
- a spacer member 420 may be further provided between the upper base 56 and the upper end 410B of the stopper rod 410 to adjust the mold clamping position of the upper base 56 during mold clamping.
- the distance L5 between the lower base 54 and the upper base 56 at the time of clamping is the same.
- the distance L5 between the upper base 56 and the lower base 54 during mold clamping is equal.
- the distance L5 may be different between FIG. 22 and FIG. 23 depending on the difference in height between the injection core mold 112 and the transfer mold unit 210 and the length of the molded product.
- the distance L5 between the upper base 56 and the lower base 54 at the time of mold clamping changes the clamping position of the upper base 56 by changing the presence or absence of the sbaser member 420 or the thickness of the spacer member 420. This can be easily adjusted.
- the upper end 410B side of the stopper rod 410 is enlarged and shown in FIG.
- the spacer member 420 can be fixed to the upper base 56 by a bolt 431 together with a hollow guide 430 that guides the stopper rod 410 up and down. If the bolt 431 is removed, the distance L5 can be adjusted by removing the spacer member 410 or replacing it with another spacer member 410 having a different thickness.
- the distance L5 cannot be adjusted even if the sbaser member is changed.
- FIG. 25 is an explanatory diagram showing the mold clamping shown in FIG. 23 in comparison with a comparative example.
- FIG. 26 is an enlarged view of a portion A showing a comparative example portion of FIG.
- FIG. 27 is an enlarged view of part B showing the embodiment part of FIG.
- the first clearance ⁇ 1 can be provided between the opposing surfaces of the pressure receiving block 400 and the upper base 56 at the time of clamping.
- the pressure receiving block 400 is stopped at a position in close contact with the clamped transfer mold unit 210.
- the mold clamping position of the upper base 56 determined by the stopper rod 410 can be adjusted without being affected by the pressure receiving block 400.
- the first clearance ⁇ 1 can be ensured between the opposing surfaces of the pressure receiving block 400 and the upper base 56.
- the first clearance ⁇ 1 is also formed between the opposing surfaces of the neck mold fixed plate 112A and the upper base plate 56 during mold clamping.
- the pressure receiving block 400 ⁇ / b> A driven by the upper cylinder 116 presses the upper base 56 unlike the pressure receiving block 400 of FIG. 27.
- the gap ⁇ between the opposed surfaces of the pressure receiving block 400A and the upper base 56 becomes zero. Therefore, in the comparative example of FIG. 26, the upper base 56 and the turntable 20 are sandwiched between the pressure receiving block 400A and the transfer mold unit 210 during mold clamping. For this reason, an excessive force is applied to the turntable 20, and the turntable 20 having relatively weak rigidity is deformed.
- a second clearance ⁇ 2 can be provided between the opposing surfaces of the upper base 56 and the turntable 20 at the time of clamping.
- the clearance between the opposed surfaces of the upper base plate 56 and the turntable 20 is designed so that a clearance is secured when the turntable 20 is rotated and conveyed. Otherwise, the rotational drive of the turntable 20 is adversely affected.
- the force of the pressure receiving block 400 is not transmitted to the upper base 56, and the upper base 56 is supported by its own weight by the stopper rod 410. 20 can be ensured between the opposing surfaces. This prevents the turntable 20 from being sandwiched between the upper base 56 and the transfer mold unit 210 and prevents the turntable 20 from being deformed.
- the upper base 56 and the turntable 20 are sandwiched between the pressure receiving block 400A and the transfer mold unit 210 during the clamping as described above. Therefore, a clearance ⁇ 2 similar to that during rotation conveyance cannot be ensured between the opposing surfaces of the upper base plate 56 and the turntable 20. Therefore, the mold clamping force acts on the turntable 20 and deforms.
- the transfer member attached to the turntable 20 is a neck mold 90 in the case of an injection stretch blow molding machine, and a transfer mold unit 210 in the case of an injection blow molding machine.
- the neck mold 90 is composed of a pair of split molds, and the pair of split molds are supported so as to be openable and closable along two L-shaped guides 500 fixed to the turntable 20, as shown in FIG.
- the transfer mold unit 210 is fixed to the turntable 20.
- FIG. 28 shows the mounting structure of the transfer mold unit 210.
- the transfer mold unit 210 has a mounting hole 210C.
- a flanged sleeve 510 is inserted into the mounting hole 210C.
- the flanged sleeve 510 has a holed flange 511 and a hollow shaft part 512 inserted through the mounting hole 210C. Since the hollow shaft portion 512 is formed to be slightly longer than the mounting hole 210 ⁇ / b> C, the bolt 520 inserted through the flanged sleeve 510 is fastened to the turntable 20, so that the space between the transfer mold unit 210 and the turntable 20 is fixed.
- the transfer mold unit 210 can be fastened between the flange 511 and the turntable 20 while ensuring the constant third clearance ⁇ 3.
- a washer 530 is interposed between the head 521 of the bolt 520 and the flange 511 to prevent loosening.
- the neck mold 90 is supported by the turntable 20 so as to be openable and closable while having a fixed third clearance ⁇ 3 by the L-shaped guide 500, the turntable 20 having relatively low rigidity is not deformed.
- the transfer mold unit 210 when the transfer mold unit 210 is bolted to the turntable 20, the less rigid turntable is deformed by being tightened on a relatively wide surface of the transfer mold 210, There is a risk of adversely affecting the rotational drive of the rotating disk.
- the flanged sleeve 510 shown in FIG. 28 fastens the transfer mold unit 210 with a certain gap ⁇ 3 between the flange 511 and the turntable 20, so that it acts on the area of the flange 511. Only the force acts on the turntable 20, and the load on the turntable 20 is reduced. Thereby, deformation of the turntable 20 is suppressed, and it is easy to secure the second clearance ⁇ 2 between the facing surfaces of the turntable 20 and the upper base 56.
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
Description
下部基盤と、
前記下部基盤の上方にて昇降される上部基盤と、
前記上部基盤に回転可能に支持され、複数の移送部材を複数の回転停止位置にて停止せる回転盤と、
前記下部基盤と前記上部基盤との間の空間にて、前記複数の回転停止位置に配置される複数の処理ステーションと、を有し、
前記複数の処理ステーションが射出型を有する射出成形ステーションとブロー型を有するブロー成形ステーションとを少なくとも含み、
前記複数の移送部材、前記射出型及び前記ブロー型を含む部品を交換することにより、射出延伸ブロー成形機及びインジェクションブロー成形機の双方に用いられるブロー成形機であって、
前記射出成形ステーションは、
前記下部基盤に支持され、上部基盤を昇降駆動する下部シリンダと、
前記上部基盤に支持され、型締め盤を昇降駆動する上部シリンダと、
を有し、
前記ブロー成形機が射出延伸ブロー成形機に使用されるときは、前記複数の移送部材の各々が第1ネック型を含み、前記射出成形ステーションにて、前記下部シリンダにより前記上部基盤、前記回転盤及び前記型締め盤を下降させ、かつ、下降された前記型締め盤に固定される第1射出コア型を前記上部シリンダによりさらに下降させて、前記下部基盤側に支持された第1射出キャビティ型に前記第1ネック型及び前記第1射出コア型を型締めして、第1プリフォームを成形し、
前記ブロー成形機がインジェクションブロー成形機に使用されるときは、前記複数の移送部材の各々が第2ネック型及び第2射出コア型を有する移送金型ユニットを含み、前記射出成形ステーションにて、前記下部シリンダより前記上部基盤、前記回転盤及び前記型締め盤を下降させ、かつ、下降された前記型締め盤に固定される圧受けブロックを前記上部シリンダによりさらに下降させて前記移送金型ユニットを直接押圧して、前記下部基盤側に支持された第2射出キャビティ型に前記移送金型ユニットを型締めして、第2プリフォームを成形するブロー成形機に関する。
前記移送金型ユニットは、通路を含み、
前記ロータリージョイントと前記移送金型ユニットとに連結される第1配管及び第2配管がさらに設けられ、前記第1配管は前記通路に流体を供給し、前記第2配管は前記通路から前記流体を排出し、
前記ロータリージョイントは、
固定軸体と、
前記固定軸体の周囲に配置され、前記回転盤に固定されるハウジングと、
を有し、
前記固定軸体は、外表面に形成された複数の周溝と、前記複数の周溝の一つに連通される第1縦孔と、前記複数の周溝の他の一つに連通される第2縦孔とを含み、
前記ハウジングは、前記第1配管が連結され、前記複数の周溝の前記一つと対向する第1開口部と、前記第2配管が連結され、前記複数の周溝の前記他の一つと対向する第2開口部と、を有することができる。
下部基盤と、
前記下部基盤の上方にて昇降される上部基盤と、
前記上部基盤に回転可能に支持され、複数の移送部材を複数の回転停止位置にて停止せる回転盤と、
前記下部基盤と前記上部基盤との間の空間にて、前記複数の回転停止位置に配置される複数の処理ステーションと、
前記上部基盤を昇降する竪型締め機構と、
を有し、前記複数の処理ステーションが、射出型を有する射出成形ステーションとブロー型を有するブロー成形ステーションとを少なくとも含み、
前記複数の移送部材、前記射出型及びブロー型を含む部品を交換することにより、前記ブロー成形機が射出延伸ブロー成形機及びインジェクションブロー成形機の双方に用いられ、
前記ブロー成形機が射出延伸ブロー成形機に使用されるときは、前記複数の移送部材の各々が第1ネック型を含み、前記射出成形ステーションにて前記第1ネック型と型締めされる第1射出コア型及び第1射出キャビティ型を用いて第1プリフォームを成形し、前記第1プリフォームを前記第1ネック型により保持して前記回転盤の回転搬送により前記ブロー成形ステーションに搬送し、前記ブロー成形ステーションにて前記第1ネック型と型締めされる第1ブローキャビティ型内に配置された前記第1プリフォームを、延伸ロッドの縦軸駆動とブローコア型からのブローエアーとにより二軸方向延伸して第1容器をブロー成形し、
前記ブロー成形機がインジェクションブロー成形機に使用されるときは、前記複数の移送部材の各々が第2ネック型及び第2射出コア型を有する移送金型ユニットを含み、前記射出成形ステーションにて前記移送金型ユニットと型締めされる第2射出キャビティ型を用いて第2プリフォームを成形し、前記第2プリフォームを前記移送金型ユニットにより保持して前記回転盤の回転搬送により前記ブロー成形ステーションに搬送し、前記ブロー成形ステーションにて前記移送金型ユニットと型締めされる第2ブローキャビティ型内に配置された前記第2プリフォームを、前記第2射出コア型からのブローエアーにより延伸して第2容器をブロー成形することを特徴とする。
本発明に従った2ステーション、3ステーション及び4ステーションの回転搬送型ブロー成形機を図1~図4に示す。図1~図4は、回転盤20の所定回転角度で複数の回転停止位置に配置される処理ステーション1A~4Dを模式的に示している。図1~図4のいずれのブロー成形機も、射出延伸ブロー成形機STRとインジェクションブロー成形機INJとに兼用される。
2.1. 4ステーションの射出延伸ブロー成形機
先ず、図3に示す4ステーションのブロー成形機を射出延伸ブロー成形機とした特許第3722671号を、図5~図7を参照して説明する。
図5~図7に示す4ステーションの射出延伸ブロー成形機50の基本構造を用い、部品の交換により切換えられる2ステーションタイプのインジェクションブロー成形機200について、図8~図11を参照して説明する。
先ず、図8及び図9を参照して、インジェクションブロー成形機200の射出成形ステーション201(1C)について説明する。
図10、図12及び図13は、インジェクションブロー成形機200のブロー成形ステーション202(3C)での型締め状態を示している。図11は、図10のA部拡大図であり、射出コア型212の詳細を示している。ブロー成形ステーション202(3C)には、一対の割型から成る第2ブローキャビティ型230が配置されている。第2ブローキャビティ型230の一対の割型は、図6に示すブロー型締め機構82に取り付けられている。図10に示す底型232は、第2ブローキャビティ型230を構成する一対の割型の一方と一体で開閉される。
図4に示す4ステーションタイプのブロー成形機にて4ステーションの射出延伸ブロー成形機を構築することは、図5~図7に示す射出延伸ブロー成形機50を構築することと一致するので、説明は省略する。
図2に示す3ステーションタイプのブロー成形機にて3ステーションの射出延伸ブロー成形機を構築することは、図5~図7に示す射出延伸ブロー成形機50から温調ステーション2Cを削除して、回転盤66(20)の間欠回転を回転角120度毎に実施すればよい。
図1に示す2ステーションタイプのブロー成形機は、図3に示す4ステーション/2ステーション切換えタイプのブロー成形機から第2,第4ステーション2C,4Cが排除されればよい。また、図1のブロー成形ステーション3Aに、図12に示す取り出し装置のレール部材240が、インジェクションブロー成形機の場合の他、射出延伸ブロー成形機の場合にも配置される。
図5~図7に示す4ステーションの射出延伸ブロー成形機50の基本構造を用い、部品の交換により切換えられる2ステーションタイプのインジェクションブロー成形機200の射出成形ステーション201とブロー成形ステーション202とを、図15に概略的に示す。図15に示すように、回転盤66には回転角度で180゜だけ離れた2箇所にインジェクションブロー用の移送部材210が固定されている。
7.1.射出延伸ブロー成形機での射出型締め
図22は、射出延伸ブロー成形機の射出成形ステーションでの型締めを示している。図22に示す部材のうち、図7と同一機能を有する部材について同一符号を付してある。
図23は、図22に示す機構を用いたインジェクションブロー成形機での射出型締めを示している。上述した通り、図23に示す移送金型ユニット(移送部材)210は回転盤20に固定されるので、上部シリンダ116を用いなくても、下部シリンダ120のみで移送金型ユニット210を型締めすることが可能である。ただし、図23は、図22と同様に上部シリンダ116を用いて、移送金型ユニット210を型締めしている。
本実施形態では、下部シリンダ120及び上部シリンダ116は、シリンダ内径が実質的に同一であり、かつ、型締め時に同圧に設定することができる。下部シリンダ120及び上部シリンダ116を同圧に設定するには、油などの圧力媒体の回路をショートさせればよい。下部シリンダ120及び上部シリンダ116の各々の押圧力は、受圧面積×圧力であるので、等しくなる。下部シリンダ120及び上部シリンダ116の各々の等しい押圧力は、下向きに作用する。
図7に示すストッパロッド140は、上述した通り、上部基盤56の下降限を補助的に規制するためのものであった。つまり、ストッパロッド140は、型厚を間違えて設定したり、あるいは上部基盤56の傾きが所定角度以上に傾いた異常時に、上部基盤56の下降移動を停止するためのものである。従って、ストッパロッド140を用いた図26の比較例で示すように、型締め時にはストッパロッド140と上部基盤56側との間にはクリアランスδ4が確保されている。
図25は、図23に示す型締めを比較例と対比して示す説明図である。図26は、図25の比較例部分を示すA部拡大図である。図27は、図25の実施例部分を示すB部拡大図である。
回転盤20に取り付けられる移送部材は、射出延伸ブロー成形機の場合にはネック型90であり、インジェクションブロー成形機の場合には移送金型ユニット210である。
Claims (15)
- 下部基盤と、
前記下部基盤の上方にて昇降される上部基盤と、
前記上部基盤に回転可能に支持され、複数の移送部材を複数の回転停止位置にて停止せる回転盤と、
前記下部基盤と前記上部基盤との間の空間にて、前記複数の回転停止位置に配置される複数の処理ステーションと、を有し、
前記複数の処理ステーションが射出型を有する射出成形ステーションとブロー型を有するブロー成形ステーションとを少なくとも含み、
前記複数の移送部材、前記射出型及び前記ブロー型を含む部品を交換することにより、射出延伸ブロー成形機及びインジェクションブロー成形機の双方に用いられるブロー成形機であって、
前記射出成形ステーションは、
前記下部基盤に支持され、上部基盤を昇降駆動する下部シリンダと、
前記上部基盤に支持され、型締め盤を昇降駆動する上部シリンダと、
を有し、
前記ブロー成形機が射出延伸ブロー成形機に使用されるときは、前記複数の移送部材の各々が第1ネック型を含み、前記射出成形ステーションにて、前記下部シリンダにより前記上部基盤、前記回転盤及び前記型締め盤を下降させ、かつ、下降された前記型締め盤に固定される第1射出コア型を前記上部シリンダによりさらに下降させて、前記下部基盤側に支持された第1射出キャビティ型に前記第1ネック型及び前記第1射出コア型を型締めして、第1プリフォームを成形し、
前記ブロー成形機がインジェクションブロー成形機に使用されるときは、前記複数の移送部材の各々が第2ネック型及び第2射出コア型を有する移送金型ユニットを含み、前記射出成形ステーションにて、前記下部シリンダより前記上部基盤、前記回転盤及び前記型締め盤を下降させ、かつ、下降された前記型締め盤に固定される圧受けブロックを前記上部シリンダよりさらに下降させて前記移送金型ユニットを直接押圧して、前記下部基盤側に支持された第2射出キャビティ型に前記移送金型ユニットを型締めして、第2プリフォームを成形することを特徴とするブロー成形機。 - 請求項1において、
前記下部シリンダ及び前記上部シリンダは、シリンダ内径が実質的に同一であり、かつ、型締め時に同圧に設定されることを特徴とするブロー成形機。 - 請求項2において、
前記下部基盤より上方に延びるストッパロッドをさらに有し、
前記上部基盤は、前記型締め時に前記ストッパロッドに当接して型締め位置にて支持されることを特徴とするブロー成形機。 - 請求項1において、
前記型締め時に前記上部基盤とストッパロッドとの間に介在して、前記上部基盤の前記型締め位置を調整するスベーサ部材をさらに有することを特徴とするブロー成形機。 - 請求項3または4において、
前記型締め時に、前記圧受けブロックと前記上部基盤との対向面間に第1クリアランスが設けられることを特徴とするブロー成形機。 - 請求項1乃至5のいずれかにおいて、
前記型締め時に、前記上部基盤と前記回転盤との対向面間に第2クリアランスが設けられることを特徴とするブロー成形機。 - 請求項1乃至6のいずれかにおいて、
前記第1ネック型は一対の割型で構成され、前記一対の割型は、前記回転盤に固定された2つのL字ガイドに沿って開閉自在に支持され、
前記移送金型ユニットは、フランジ付スリーブが挿通される孔を含み、
前記フランジ付スリーブは、孔付フランジと、前記孔付フランジより延びる中空軸部とを含み、前記中空軸部の長さは前記孔よりも長く形成され、
前記フランジ付スリーブに挿通されるボルトを前記回転盤に締め付けることで、前記移送金型ユニットと前記回転盤との間に一定の第3クリアランスを確保しながら、前記移送金型ユニットが前記フランジと前記回転盤との間で締結されることを特徴とするブロー成形機。 - 請求項1乃至7のいずれかにおいて、
前記ブロー成形機がインジェクションブロー成形機に使用されるときは、ロータリージョイントがさらに設けられ、
前記移送金型ユニットは、通路を含み、
前記ロータリージョイントと前記移送金型ユニットとに連結される第1配管及び第2配管がさらに設けられ、前記第1配管は前記通路に流体を供給し、前記第2配管は前記通路から前記流体を排出し、
前記ロータリージョイントは、
固定軸体と、
前記固定軸体の周囲に配置され、前記回転盤に固定されるハウジングと、
を有し、
前記固定軸体は、外表面に形成された複数の周溝と、前記複数の周溝の一つに連通される第1縦孔と、前記複数の周溝の他の一つに連通される第2縦孔とを含み、
前記ハウジングは、前記第1配管が連結され、前記複数の周溝の前記一つと対向する第1開口部と、前記第2配管が連結され、前記複数の周溝の前記他の一つと対向する第2開口部と、を有することを特徴とするブロー成形機。 - 請求項8において、
前記第1配管及び前記第2配管を支持する配管支持部材をさらに有し、
前記配管支持部材は、前記回転盤及び前記ロータリージョイントと共に昇降することを特徴とするブロー成形機。 - 請求項1乃至9のいずれかにおいて、
前記ブロー成形機が前記射出延伸ブロー成形機に使用されるときは、前記第1プリフォームを前記第1ネック型により保持して前記回転盤の回転搬送により前記ブロー成形ステーションに搬送し、前記ブロー成形ステーションにて前記第1ネック型と型締めされる第1ブローキャビティ型内に配置された前記第1プリフォームを、延伸ロッドの縦軸駆動とブローコア型からのブローエアーとにより二軸方向延伸して第1容器をブロー成形し、
前記ブロー成形機が前記インジェクションブロー成形機に使用されるときは、前記第2プリフォームを前記移送金型ユニットにより保持して前記回転盤の回転搬送により前記ブロー成形ステーションに搬送し、前記ブロー成形ステーションにて前記移送金型ユニットと型締めされる第2ブローキャビティ型内に配置された前記第2プリフォームを、前記第2射出コア型からのブローエアーにより延伸して第2容器をブロー成形することを特徴とするブロー成形機。 - 請求項10において、
前記回転盤は回転角180度で間欠回転駆動され、
前記複数の処理ステーションは、回転搬送方向に沿って配置される第1及び第2ステーションを有し、前記第1ステーションが前記射出成形ステーションとなり、前記第2ステーションが前記ブロー成形ステーションと取り出しステーションとに兼用されることを特徴とするブロー成形機。 - 請求項10において、
前記回転盤は回転角90度で間欠回転駆動され、
前記複数の処理ステーションは、回転搬送方向に沿って配置される第1~第4ステーションから成り、
前記ブロー成形機が前記射出延伸ブロー成形機に使用されるときは、前記第1ステーションが前記射出成形ステーションとなり、前記第2ステーションがプリフォーム温調ステーションとなり、前記第3ステーションが前記ブロー成形ステーションとなり、前記第4ステーションが取り出しステーションとなり、
前記ブロー成形機が前記インジェクションブロー成形機に使用されるときは、前記第1ステーションが前記射出成形ステーションとなり、前記第2ステーションが前記ブロー成形ステーションとなり、前記第3ステーションが取り出しステーションとなり、前記第4ステーションが前記第2射出コア型を冷却する冷却ステーションとなることを特徴とするブロー成形機。 - 請求項10において、
前記回転盤は回転角90度または180度に間欠回転駆動され、
前記複数の処理ステーションは、回転搬送方向に沿って配置される第1~第4ステーションから成り、
前記ブロー成形機が前記射出延伸ブロー成形機に使用されるときは、前記第1ステーションが前記射出成形ステーションとなり、前記第2ステーションがプリフォーム温調ステーションとなり、前記第3ステーションが前記ブロー成形ステーションとなり、前記第4ステーションが取り出しステーションとなり、
前記ブロー成形機が前記インジェクションブロー成形機に使用されるときは、前記第1ステーションが前記射出成形ステーションとなり、前記第3ステーションが前記ブロー成形ステーションと取り出しステーションとに兼用され、前記第2ステーション及び前記第4ステーションでは前記回転盤が停止されないことを特徴とするブロー成形機。 - 請求項10において、
前記回転盤は回転角120度で間欠回転駆動され、
前記複数の処理ステーションは、回転搬送方向に沿って配置される第1~第3ステーションから成り、
前記ブロー成形機が前記射出延伸ブロー成形機に使用されるときは、前記第1ステーションが前記射出成形ステーションとなり、前記第2ステーションが前記ブロー成形ステーションとなり、前記第3ステーションが取り出しステーションとなり、
前記ブロー成形機が前記インジェクションブロー成形機に使用されるときは、前記第1ステーションが前記射出成形ステーションとなり、前記第2ステーションが前記ブロー成形ステーションとなり、前記第3ステーションが取り出しステーションとなることを特徴とするブロー成形機。 - 請求項10、11、12または14において、
前記ブロー成形ステーションにて前記ブロー型を横型締めするブロー型締め機構が、前記射出延伸ブロー成形機と前記インジェクションブロー成形機とに兼用されることを特徴とするブロー成形機。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2012558001A JP5643847B2 (ja) | 2011-02-18 | 2012-02-16 | ブロー成形機 |
KR1020137024297A KR101530006B1 (ko) | 2011-02-18 | 2012-02-16 | 블로우 성형기 |
CN201280009246.4A CN103354780B (zh) | 2011-02-18 | 2012-02-16 | 吹塑成形机 |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2011033208 | 2011-02-18 | ||
JP2011-033208 | 2011-02-18 | ||
JP2011233340 | 2011-10-24 | ||
JP2011-233340 | 2011-10-24 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2012111728A1 true WO2012111728A1 (ja) | 2012-08-23 |
Family
ID=46672640
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2012/053598 WO2012111728A1 (ja) | 2011-02-18 | 2012-02-16 | ブロー成形機 |
Country Status (5)
Country | Link |
---|---|
JP (1) | JP5643847B2 (ja) |
KR (1) | KR101530006B1 (ja) |
CN (1) | CN103354780B (ja) |
TW (1) | TWI492836B (ja) |
WO (1) | WO2012111728A1 (ja) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2019202811A1 (ja) * | 2018-04-19 | 2019-10-24 | 株式会社青木固研究所 | 射出延伸ブロー成形機と中空成形体の製造方法 |
WO2019208498A1 (ja) * | 2018-04-26 | 2019-10-31 | 日精エー・エス・ビー機械株式会社 | 射出成形用金型及びそれに含まれるリップ型並びに射出成形方法 |
JPWO2019146701A1 (ja) * | 2018-01-26 | 2021-01-07 | 日精エー・エス・ビー機械株式会社 | 樹脂製の容器部品の製造方法、金型ユニットおよびそれを備えるブロー成形機 |
JP2021505435A (ja) * | 2017-12-06 | 2021-02-18 | エス.アイ.ピー.エイ.ソシエタ’インダストリアリザッジオーネ プロゲッタジオーネ エ オートマジオーネ ソシエタ ペル アチオニ | 射出圧縮成形デバイス |
CN112519091A (zh) * | 2019-09-19 | 2021-03-19 | 苏州立注机械有限公司 | 一种注塑机转盘结构 |
CN115609887A (zh) * | 2021-07-13 | 2023-01-17 | 株式会社青木固研究所 | 中空成型体的制造方法和注射拉伸吹塑成型机 |
US11919221B2 (en) | 2019-01-31 | 2024-03-05 | Nissei Asb Machine Co., Ltd. | Resin container manufacturing apparatus and resin container manufacturing method |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101507659B1 (ko) * | 2013-12-16 | 2015-03-31 | (주)항남 | 고효율 모터용 스파이럴 스테이터 코어의 제조 장치 및 제조 방법 |
WO2015194607A1 (ja) | 2014-06-20 | 2015-12-23 | 日精エー・エス・ビー機械株式会社 | 中空容器の製造方法及び製造装置 |
KR101673462B1 (ko) | 2014-12-12 | 2016-11-08 | 동아정밀공업(주) | 블로우 성형기용 넥 지그 |
CN109414865A (zh) * | 2016-06-27 | 2019-03-01 | 日精Asb机械株式会社 | 注射成形单元和具有该注射成形单元的吹塑成形装置 |
US11135759B2 (en) * | 2017-09-08 | 2021-10-05 | Nissei Asb Machine Co., Ltd. | Blow molding apparatus and blow molding method |
KR102103303B1 (ko) | 2017-11-24 | 2020-04-22 | 새한프라텍 주식회사 | 프리폼 성형장치 |
KR102221477B1 (ko) * | 2019-08-22 | 2021-03-02 | (주)엘티 | 고상 원료용 복합 성형장치 |
JP6864164B1 (ja) * | 2019-09-25 | 2021-04-28 | 日精エー・エス・ビー機械株式会社 | ブロー成形装置およびブロー成形方法 |
CN111941802A (zh) * | 2020-08-12 | 2020-11-17 | 精英模具(合肥)有限公司 | 一种吹塑成型的模具结构 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0679773A (ja) * | 1992-08-31 | 1994-03-22 | Nissei Asb Mach Co Ltd | 射出延伸吹込成形方法及び装置 |
JPH08238669A (ja) * | 1995-03-06 | 1996-09-17 | Nissei Asb Mach Co Ltd | 成形機 |
JP3722671B2 (ja) * | 2000-06-28 | 2005-11-30 | 日精エー・エス・ビー機械株式会社 | 射出延伸ブロー成形装置 |
JP2007181927A (ja) * | 2005-12-29 | 2007-07-19 | Nissei Asb Mach Co Ltd | インジェクションブロー成形機 |
JP2007261150A (ja) * | 2006-03-29 | 2007-10-11 | Nissei Asb Mach Co Ltd | 射出延伸ブロー成形装置 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH03102019U (ja) * | 1990-02-06 | 1991-10-24 | ||
AU2002232329B2 (en) * | 2002-02-11 | 2006-04-27 | Plasdan-Maquinas Para Plasticos, Ld | Injection blow moulding apparatus for producing biaxial orientated thermoplastic containers |
MXPA05006304A (es) * | 2002-12-12 | 2005-08-29 | A K Tech Lab Inc | Dispositivo de extension de varilla de estiramiento y dispositivo de levantamiento de molde de fondo para maquina de moldeo por soplado de estiramiento. |
JP2006315266A (ja) * | 2005-05-12 | 2006-11-24 | Toppan Printing Co Ltd | 二軸延伸ブロー成形方法 |
JP2008302635A (ja) * | 2007-06-11 | 2008-12-18 | Hideaki Koda | 射出ブロー成形機及び、ネック型移動装置。 |
-
2012
- 2012-02-16 KR KR1020137024297A patent/KR101530006B1/ko active IP Right Grant
- 2012-02-16 CN CN201280009246.4A patent/CN103354780B/zh active Active
- 2012-02-16 WO PCT/JP2012/053598 patent/WO2012111728A1/ja active Application Filing
- 2012-02-16 JP JP2012558001A patent/JP5643847B2/ja active Active
- 2012-02-17 TW TW101105260A patent/TWI492836B/zh active
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0679773A (ja) * | 1992-08-31 | 1994-03-22 | Nissei Asb Mach Co Ltd | 射出延伸吹込成形方法及び装置 |
JPH08238669A (ja) * | 1995-03-06 | 1996-09-17 | Nissei Asb Mach Co Ltd | 成形機 |
JP3722671B2 (ja) * | 2000-06-28 | 2005-11-30 | 日精エー・エス・ビー機械株式会社 | 射出延伸ブロー成形装置 |
JP2007181927A (ja) * | 2005-12-29 | 2007-07-19 | Nissei Asb Mach Co Ltd | インジェクションブロー成形機 |
JP2007261150A (ja) * | 2006-03-29 | 2007-10-11 | Nissei Asb Mach Co Ltd | 射出延伸ブロー成形装置 |
Cited By (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2021505435A (ja) * | 2017-12-06 | 2021-02-18 | エス.アイ.ピー.エイ.ソシエタ’インダストリアリザッジオーネ プロゲッタジオーネ エ オートマジオーネ ソシエタ ペル アチオニ | 射出圧縮成形デバイス |
JP7212044B2 (ja) | 2017-12-06 | 2023-01-24 | エス.アイ.ピー.エイ.ソシエタ’インダストリアリザッジオーネ プロゲッタジオーネ エ オートマジオーネ ソシエタ ペル アチオニ | 射出圧縮成形デバイス |
JPWO2019146701A1 (ja) * | 2018-01-26 | 2021-01-07 | 日精エー・エス・ビー機械株式会社 | 樹脂製の容器部品の製造方法、金型ユニットおよびそれを備えるブロー成形機 |
JP7296323B2 (ja) | 2018-01-26 | 2023-06-22 | 日精エー・エス・ビー機械株式会社 | 樹脂製の容器部品の製造方法、金型ユニットおよびそれを備えるブロー成形機 |
WO2019202811A1 (ja) * | 2018-04-19 | 2019-10-24 | 株式会社青木固研究所 | 射出延伸ブロー成形機と中空成形体の製造方法 |
JP2019188630A (ja) * | 2018-04-19 | 2019-10-31 | 株式会社青木固研究所 | 射出延伸ブロー成形機と中空成形体の製造方法 |
US11065801B2 (en) | 2018-04-19 | 2021-07-20 | Aoki Technical Laboratory, Inc. | Injection stretch blow molding machine and method for manufacturing hollow molded body |
JPWO2019208498A1 (ja) * | 2018-04-26 | 2021-04-30 | 日精エー・エス・ビー機械株式会社 | 射出成形用金型及びそれに含まれるリップ型並びに射出成形方法 |
WO2019208498A1 (ja) * | 2018-04-26 | 2019-10-31 | 日精エー・エス・ビー機械株式会社 | 射出成形用金型及びそれに含まれるリップ型並びに射出成形方法 |
JP7279025B2 (ja) | 2018-04-26 | 2023-05-22 | 日精エー・エス・ビー機械株式会社 | 射出成形用金型及びそれに含まれるリップ型並びに射出成形方法 |
US11919221B2 (en) | 2019-01-31 | 2024-03-05 | Nissei Asb Machine Co., Ltd. | Resin container manufacturing apparatus and resin container manufacturing method |
CN112519091A (zh) * | 2019-09-19 | 2021-03-19 | 苏州立注机械有限公司 | 一种注塑机转盘结构 |
CN115609887A (zh) * | 2021-07-13 | 2023-01-17 | 株式会社青木固研究所 | 中空成型体的制造方法和注射拉伸吹塑成型机 |
CN115609887B (zh) * | 2021-07-13 | 2023-05-30 | 株式会社青木固研究所 | 中空成型体的制造方法和注射拉伸吹塑成型机 |
Also Published As
Publication number | Publication date |
---|---|
KR20130123444A (ko) | 2013-11-12 |
TWI492836B (zh) | 2015-07-21 |
KR101530006B1 (ko) | 2015-06-18 |
JPWO2012111728A1 (ja) | 2014-07-07 |
JP5643847B2 (ja) | 2014-12-17 |
CN103354780A (zh) | 2013-10-16 |
CN103354780B (zh) | 2016-05-04 |
TW201302432A (zh) | 2013-01-16 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP5643847B2 (ja) | ブロー成形機 | |
WO2013061936A1 (ja) | ブロー型ユニット、ブロー成形機及びブロー型ユニットの交換方法 | |
EP2529914B1 (en) | Blow mold unit and blow molding machine using same | |
US11731337B2 (en) | Blow molding device and blow molding method | |
JP5798440B2 (ja) | ブロー型ユニット及びそれを用いたブロー成形機 | |
US11820064B2 (en) | Injection molding unit and blow molding machine including same | |
CN103228423A (zh) | 注射拉伸吹塑成形装置以及成形品加热装置 | |
WO2017002150A1 (ja) | 射出延伸ブロー成形機による容器の成形方法 | |
JP5697885B2 (ja) | ブロー成形機 | |
US20190061222A1 (en) | Mold unit, blow molding apparatus and blow molding method | |
CN101947852B (zh) | 一种注吹大容量塑料中空容器的模具设备及其工艺方法 | |
RU2721054C2 (ru) | Система и способ охлаждения форм для машины, используемой для формирования полых стеклянных изделий | |
JP2002011777A (ja) | 射出延伸ブロー成形装置 | |
JP2015128905A (ja) | ネック型アッセンブリー | |
CN201784168U (zh) | 一种注吹大容量塑料中空容器的模具设备 | |
WO2020204098A1 (ja) | ブロー成形装置およびブロー成形方法 | |
CN104527032A (zh) | 一种注拉吹塑料成型二次旋转加热方法及装置 | |
RU22094U1 (ru) | Установка для изготовления пустотелых изделий | |
JPWO2019208498A1 (ja) | 射出成形用金型及びそれに含まれるリップ型並びに射出成形方法 | |
TW201431666A (zh) | 吹塑成形方法與裝置 | |
WO2008111879A1 (en) | Injection-blow moulding machine |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
WWE | Wipo information: entry into national phase |
Ref document number: 201280009246.4 Country of ref document: CN |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 12747308 Country of ref document: EP Kind code of ref document: A1 |
|
ENP | Entry into the national phase |
Ref document number: 2012558001 Country of ref document: JP Kind code of ref document: A |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
ENP | Entry into the national phase |
Ref document number: 20137024297 Country of ref document: KR Kind code of ref document: A |
|
122 | Ep: pct application non-entry in european phase |
Ref document number: 12747308 Country of ref document: EP Kind code of ref document: A1 |