WO2013061936A1 - 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 - Google Patents
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 Download PDFInfo
- Publication number
- WO2013061936A1 WO2013061936A1 PCT/JP2012/077272 JP2012077272W WO2013061936A1 WO 2013061936 A1 WO2013061936 A1 WO 2013061936A1 JP 2012077272 W JP2012077272 W JP 2012077272W WO 2013061936 A1 WO2013061936 A1 WO 2013061936A1
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- WIPO (PCT)
- Prior art keywords
- blow
- mold
- pressure receiving
- plates
- unit
- Prior art date
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- 238000000071 blow moulding Methods 0.000 title claims description 76
- 238000000034 method Methods 0.000 title claims description 15
- 239000002184 metal Substances 0.000 claims description 28
- 229910052751 metal Inorganic materials 0.000 claims description 28
- 230000008878 coupling Effects 0.000 claims description 16
- 238000010168 coupling process Methods 0.000 claims description 16
- 238000005859 coupling reaction Methods 0.000 claims description 16
- 230000003028 elevating effect Effects 0.000 claims description 16
- 238000005096 rolling process Methods 0.000 claims description 9
- 230000008569 process Effects 0.000 claims description 5
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 150000002739 metals Chemical class 0.000 claims description 2
- 238000002347 injection Methods 0.000 description 25
- 239000007924 injection Substances 0.000 description 25
- 238000001746 injection moulding Methods 0.000 description 15
- 230000007246 mechanism Effects 0.000 description 7
- 239000002826 coolant Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 235000019993 champagne Nutrition 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010102 injection blow moulding Methods 0.000 description 1
- 238000010103 injection stretch blow moulding Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 230000000630 rising effect Effects 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
-
- 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
-
- 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
-
- 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
- B29C49/56—Opening, closing or clamping means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/42—Component parts, details or accessories; Auxiliary operations
- B29C49/48—Moulds
- B29C2049/4856—Mounting, exchanging or centering moulds or parts thereof
- B29C2049/4858—Exchanging mould parts, e.g. for changing the mould size or geometry for making different products in the same mould
-
- 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
- B29C2049/4879—Moulds characterised by mould configurations
- B29C2049/4889—Mould halves consisting of an independent neck, main and bottom part
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2949/00—Indexing scheme relating to blow-moulding
- B29C2949/07—Preforms or parisons characterised by their configuration
- B29C2949/0715—Preforms or parisons characterised by their configuration the preform having one end closed
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/02—Combined blow-moulding and manufacture of the preform or the parison
- B29C49/06—Injection blow-moulding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/28—Blow-moulding apparatus
- B29C49/28008—Blow-moulding apparatus mounting, exchanging or centering machine parts, e.g. modular parts
-
- 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
- B29C49/48185—Moulds with more than one separate mould cavity
-
- 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
- B29C49/54—Moulds for undercut articles
- B29C49/541—Moulds for undercut articles having a recessed undersurface
-
- 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
- B29C49/70—Removing or ejecting blown articles from the mould
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/712—Containers; Packaging elements or accessories, Packages
- B29L2031/7158—Bottles
Definitions
- the present invention relates to a blow mold unit, a blow molding machine using the blow mold unit, and a blow mold unit replacement method.
- blow molding machine it is necessary to change the mold according to the container to be blow molded.
- a blow mold for blow-molding a container from a preform a pair of blow cavity split molds are required.
- a raised bottom mold is required as a blow mold in order to form a so-called champagne bottom or a self-supporting bowl protruding inward at the bottom of a blow molded container.
- a raised bottom mold that is clamped by a pair of blow cavity split molds may be required separately from the pair of blow cavity split molds.
- Patent Document 1 discloses a blow mold unit that can handle a pair of blow cavities and a raised bottom mold as a single unit during mold replacement.
- the raised bottom is formed by the mold opening of the first and second mold clamping plates.
- the present invention relates to a blow mold unit that is attached to first and second mold clamping plates that are moved in line symmetry by a mold clamping / mold opening device of a blow molding machine.
- a blow mold unit that does not need to prevent the rise bottom mold from being dropped by an additional member even if the blow cavity split mold of 2 is opened, a blow molding machine using the blow mold unit, and a method for replacing the blow mold unit Objective.
- One aspect of the present invention is A blow mold unit connected to the first and second mold clamping plates that move in line symmetry by a mold clamping / mold opening device of a blow molding machine, and a lifting device of the blow molding machine, A plurality of raised bottom shapes are formed in a plurality of cavities defined by the first and second blow cavity split molds that are clamped by bringing the parting surfaces into contact with each other.
- a blow mold having a plurality of raised bottom molds to define; First and second pressure receiving plates that receive the clamping pressure by bringing the parting surfaces into contact with each other; A first fixed plate to which the first blow cavity split mold and the first pressure receiving plate are fixed and coupled to the first mold clamping position; A second fixed plate to which the second blow cavity split mold and the second pressure receiving plate are fixed and coupled to the second mold clamping position; A third fixing plate disposed between the first and second fixing plates and fixing the plurality of raised bottom molds to the first surface; A pressure receiving rod extending perpendicularly from a second surface facing the first surface of the third fixing plate; A mounting portion that is fixed to at least one of the first and second fixing plates, and on which the third fixing plate is mounted when the first and second blow cavity split molds are closed; Have The said pressure receiving rod is related with the blow type
- mold unit which has a to-be-fitted part fitted by the perpendicular direction to the fitting part formed in the raising / lowering rod of the said raising / lowering apparatus.
- the first and second blow cavity split molds are closed.
- the third fixing plate for fixing the plurality of raised bottom molds is placed on the placement portion fixed to at least one of the first and second fixing plates. Therefore, in addition to the first and second blow cavity split molds and the first and second pressure receiving plates, a plurality of first and second fixing plates are provided via the mounting portion and the third fixing plate. The raised bottom mold is held, and these can be handled as a unit when changing the mold.
- This blow mold unit is integrated into a blow molding unit of a blow molding machine.
- the first and second fixing plates are fixed to the first and second clamping plates of the clamping / mold opening device provided in the blow molding machine, and the first and second fixing plates are opened.
- the fitting portion of the pressure receiving rod fixed to the third fixing plate is fitted from the vertical direction to the fitting portion provided on the lifting rod of the lifting device arranged in the blow molding machine.
- the plurality of raised bottom molds, the third fixing plate, and the pressure receiving rod are supported by the lifting rod.
- the plurality of raised bottom mold clamping drives can be realized by driving the lifting rod extending from the third fixed plate by the lifting rod of the lifting device of the blow molding machine.
- a tapered surface is formed on at least one of the fitted portion of the pressure receiving rod and the fitted portion of the elevating rod, and the fitted portion is the fitted portion. Can be centered and guided.
- the fitted portion and the fitted portion can be smoothly fitted in the vertical direction and fitted at the position of the fitted portion.
- the joint can be centered.
- the placing portion includes third and fourth pressure receiving plates that receive the clamping pressure by bringing the parting surfaces into contact with each other, and the third pressure receiving portion.
- a plate is fixed to the first fixing plate, and the fourth pressure receiving plate can be fixed to the second fixing plate. If it carries out like this, a mounting part can be shared as a pressure receiving plate.
- each of the first and second pressure receiving plates includes a roller that is in rolling contact with the base of the blow molding machine, and a rise in which the roller does not protrude from the lowermost surface of the blow mold unit.
- a roller driving member that drives the roller to descend from a position to a lowered position where the roller rolls into contact with the base.
- the blow mold unit can be attached and detached by rolling the roller of the blow mold unit on the base of the blow molding machine.
- the roller is relatively raised after the blow mold unit is carried to a predetermined position, the blow mold unit is lowered, and a part of the fitted part can be fitted to the fitting part. After that, by opening the first and second fixing plates, the fitted portion can be further deepened while being guided by the fitting portion.
- the first pressure plate is fixed to the first fixed plate on both sides of the first blow cavity split mold
- the second pressure plate is Fixed to the second fixed plate on both sides of the second blow cavity split mold, and slide metals are fixed to the lowermost surfaces of the first and second pressure receiving plates, A pin inserted into a hole formed in one of the lowermost surfaces of the first and second pressure receiving plates, and a screw hole into which a bolt is screwed into one of the first and second pressure receiving plates.
- Each of the first and second pressure receiving plates has a hollow portion, a bolt hole penetrating from the upper surface facing the hollow portion to the lowermost surface is formed, and the bolt is inserted from above It can be screwed into the screw hole.
- the slide metal is placed between the bottom surface of the blow mold unit and the base of the blow molding machine, and reduces sliding friction on the substrate of the blow molding machine when the blow mold unit is closed, clamped and opened. Provided to ensure smooth movement. Temporarily clamp the neck mold and the first and second blow cavity split molds placed in the blow molding machine to determine whether the heights of the first and second blow cavity split molds are appropriate. If it is inappropriate, a shim plate is inserted between the lowermost surfaces of the first and second pressure receiving plates and the slide metal to adjust the height of the blow mold unit. At this time, since the bolt for fixing the slide metal can be operated from above the base of the blow molding machine, workability is improved.
- the roller is set at the lowered position, so that the lowermost surface of the first and second pressure receiving plates and the slide metal A gap through which the shim plate can be inserted can be easily secured.
- Another aspect of the present invention is: The foundation, The above-described blow mold unit supported on the substrate; A mold clamping / mold which is provided on the base and drives the first and second fixing plates of the blow mold unit to drive the first and second blow cavity split molds to mold clamping / mold opening. Opening device; An elevating device that elevates and lowers the plurality of raised bottom molds of the blow mold unit by driving the elevating rod; The present invention relates to a blow molding machine.
- the above-described action of the blow mold unit according to one aspect of the present invention can greatly reduce the burden of replacement work of the blow mold unit.
- Still another aspect of the present invention is Carrying the above-described blow mold unit between the first and second mold clamping plates moving in line symmetry by the mold clamping / mold opening device arranged in the blow molding machine; Fixing the first and second fixing plates of the blow mold unit to the first and second clamping plates of the mold clamping / mold opening device; Driving the mold clamping / mold opening device to open the first and second blow cavity split molds; Connecting the pressure receiving rod and the elevating rod having the fitting portion into which the fitted portion of the pressure receiving rod is fitted, by a coupling member; It is related with the replacement
- the blow mold unit can be carried into a blow molding machine as a unit. Further, when the first and second blow cavity split molds were opened during the replacement of the blow mold unit, the fitted portion of the pressure receiving rod fixed to the third fixing plate was placed in the blow molding machine. It is fitted from the vertical direction to a fitting portion provided on the lifting rod of the lifting device. Accordingly, the plurality of raised bottom molds, the third fixing plate, and the pressure receiving rod are supported by the lifting rod, so that the subsequent fastening operation by the coupling can be easily performed.
- Still another aspect of the present invention provides: The above-mentioned blow mold unit having a roller is set to the mold clamping / positioning unit arranged in the blow molding machine while the roller of the blow mold unit is set at the lowered position and the roller is brought into rolling contact with the base of the blow molding machine.
- the blow mold unit can be integrated, and the friction at the time of carry-in can be reduced by a roller and carried into the blow molding machine. Thereafter, when the roller is set at the raised position, the blow mold unit is lowered, and a part of the fitted portion is fitted into the fitted portion. Thereafter, when the first and second blow cavity split molds connected to the mold clamping / mold opening device are opened, the fitted portion of the pressure receiving rod fixed to the third fixing plate becomes the fitting portion. It is fitted from the vertical direction while being guided. Accordingly, the plurality of raised bottom molds, the third fixing plate, and the pressure receiving rod are supported by the lifting rod, so that the subsequent fastening operation by the coupling can be easily performed.
- the neck mold and the first and second blow cavity split molds arranged in the blow molding machine are temporarily clamped to form the first and second blow cavities. It is determined whether or not the split mold has an appropriate height. If the split mold is not appropriate, the first and second fixing plates and the first and second fixing plates are opened after the first and second blow cavity split molds are opened. The state of fastening with the first and second mold clamping plates is loosened, the roller is lowered, and a shim plate is inserted between the bottom surfaces of the first and second pressure receiving plates and the slide metal. And a step of adjusting the height of the blow mold unit.
- the roller when the height of the blow mold unit is adjusted, the roller is set at the lowered position so that the lowermost surfaces of the first and second pressure receiving plates and the slide metal are set. A gap through which the shim plate can be inserted can be easily secured.
- a blow mold unit that is attached to first and second mold clamping plates that are moved in line symmetry by a mold clamping / mold opening device of a blow molding machine.
- a blow mold unit that does not need to prevent the rising bottom mold from being dropped by an additional member even if the second blow cavity split mold is opened, and a blow molding machine using the blow mold unit and a method for replacing the blow mold unit be able to.
- FIG. 3 is a sectional view taken along line III-III in FIG. 1.
- 7A and 7B are a front view and a plan view of the slide metal.
- FIG. 9A shows when the blow mold unit is carried in
- FIG. 9B is a diagram for explaining the height adjustment process of the blow mold unit.
- FIG. 1 shows, for example, a four-station blow molding machine 50.
- the blow molding machine 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 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. 1) 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 is supported on the lower surface side of the rotary base 66 so as to be rotatable.
- 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 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.
- the injection molding station 68 (1C) is on the injection device 64 side
- the blow molding station 70 (3C) is opposite to the injection molding station 68
- the temperature control is at a position that intersects the injection molding station 68 and the blow molding station 70 by 90 degrees.
- a station 72 (2C) and a take-out station 74 (4C) are provided.
- an injection cavity mold 78 is mounted on the lower base 54 via a hot runner mold 76 that is in nozzle touch with the injection device 64.
- the blow mold 84 composed of a split mold that can be clamped by a blow mold clamping mechanism (mold clamping / mold opening device) 82 including a blow mold clamping cylinder 80 is provided at the bottom. It is provided on the base 54. In FIG. 2, the raised bottom mold is not shown.
- 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.
- a plurality of, for example, two neck molds 90 are disposed on the lower surface of the turntable 66 in correspondence with 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. ing.
- 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.
- the injection core mold clamping plate 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 116 is mounted on the cylinder fixing plate 60, and the tip of the piston 118 of the injection core mold clamping cylinder 116 is connected to the injection core mold clamping plate 114.
- 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 120 as a saddle mold clamping means is attached to the traction plate 58 at a position below the injection molding station 68, and the piston 122 of the neck mold clamping cylinder 120 is connected to the lower surface of the lower 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 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 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 126 temperature-controlled by supplying blow air into the mold 84 is biaxially stretched and blown to form a bottle 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 out of the apparatus.
- 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 mold 84 is opened by the blow mold clamping mechanism 82, the upper base 56 is raised by the neck mold clamping cylinder 120, the injection core mold clamping cylinder 116, the temperature control core lifting cylinder 98, the injection core mold 112, the temperature control core, the blow core mold 100, the stretching rod 104 and the eject cam 108 can be retracted from the position of the rotary plate 66 by the blow core type lifting cylinder 102, the stretching rod lifting cylinder 106 and the eject cam lifting cylinder 110. In this case, the turntable 66 is in a rotatable state.
- 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.
- blow mold unit 200 described below is not limited to the four-station blow molding machine 50 described with reference to FIGS. 1 to 3, but is also a rotary conveyance type three-station blow molding machine or a preform. It can also be applied to blow molding machines that linearly convey containers and containers. It can also be applied to an injection blow molding machine that does not require a stretching process.
- FIGS. 4 to 6 are a front view, a side view, and a plan view of the blow mold unit 200 attached to the blow molding machine 50.
- FIG. 4 and 5 as a configuration of the blow molding machine 50, a lower base (base) 54 shown in FIG. 2 and, for example, two lifting rods 150 of a lifting device such as a hydraulic cylinder are shown.
- FIG. 6 shows first and second mold clamping plates 81A and 81B driven by the mold clamping / mold opening device 82 shown in FIG.
- the blow mold unit 200 shown in FIG. 2 includes first and second blow cavity split molds 210 and 211 and a raised bottom mold 212.
- the first and second blow cavity split molds 210 and 211 respectively have cavities 210A and 211A that match the outer shape of the container.
- the first blow cavity split mold 210 has a plurality of, for example, four cavities 210A.
- the second blow cavity split mold 211 also has a plurality of, for example, four cavities 211A.
- four raised bottom molds 212 that define the raised bottom shape are provided in the four cavities 210 ⁇ / b> A and 211 ⁇ / b> A defined by the first and second blow cavity split molds 210 and 211.
- first pressure receiving plates 220 and 220 are provided on both sides of the first blow cavity split mold 210.
- second pressure receiving plates 221 and 221 are provided on both sides of the second blow cavity split mold 211.
- the first and second blow cavity split molds 210 and 211 and the first and second pressure receiving plates 220 and 221 are clamped by bringing the parting surfaces P into contact with each other.
- the first and second pressure receiving plates 220 and 221 receive the mold clamping pressure.
- the blow mold unit 200 includes a first fixed plate 230 to which the first blow cavity split mold 210 and the first pressure receiving plate 220 are fixed, a second blow cavity split mold 211, and And a second fixing plate 231 to which the second pressure receiving plate 221 is fixed.
- the blow mold unit 200 is disposed between the first and second fixing plates 230 and 231 to fix the plurality of raised bottom molds 212 to the first surface 232A.
- a fixing plate 232 is provided.
- At least one, for example, two pressure receiving rods 234 depending on the second surface 232B are fixed to the second surface 232B facing the first surface 232A of the third fixing plate 232.
- the distal ends (fitting portions) 234A of the two pressure receiving rods 234 can be formed in a tapered pin shape, for example.
- the pressure receiving rod 234 of the present embodiment has a flange 234B above the fitted portion 234A.
- the flange 234B functions as a lower limit stopper of the pressure receiving rod 234.
- a recess (fitting portion) 151 for receiving the fitted portion 234A of the pressure receiving rod 234 in the vertical direction is formed at the tips of the two lifting rods 150 of the lifting device provided in the blow molding machine 50. ing. And the fitting part 151 and the to-be-fitted part 234A are connected by the coupling member 235, and can raise / lower as a unit. As a result, when the elevating rod 150 is raised and lowered, the plurality of raised bottom molds 212, the third fixing plate 232, and the pressure receiving rod 234 are integrally raised and lowered.
- the first and second fixing plates 230 and 231 are detachably fixed to at least one of the first and second blow cavity split molds 210 and 211 when the mold is closed.
- a mounting portion 240 on which the fixed plate 232 is mounted is provided.
- the mounting portion 240 is configured by a third pressure receiving plate 240A and a fourth pressure receiving plate 240B that receive the clamping pressure by bringing the parting surfaces into contact with each other.
- the third pressure receiving plate 240 ⁇ / b> A is fixed to the first fixing plate 230
- the fourth pressure receiving plate 240 ⁇ / b> B is fixed to the second fixing plate 231.
- the mounting portion 240 is also used as the third and fourth pressure receiving plates 240A and 240B.
- the operation timing of the raised bottom mold may be delayed during blow molding, and may be raised over a longer stroke than usual.
- the mounting portion 240 is lowered in its overall height, installed in a position where it does not interfere with the lifting rod 150, or provided on both side surfaces (pressure receiving plates 220, 221 side) of the blow mold. I do not care.
- the main function of the mounting portion 240 is to prevent the third fixing plate 232 from falling off, and the pressure receiving function is not essential.
- the first and second blow cavity split molds 210 and 211 are closed.
- the third fixing plate 232 for fixing the plurality of raised bottom molds 212 has the first and second molds as shown in FIG. It mounts on the mounting part 240 (3rd, 4th pressure receiving plate 240A, 240B) fixed to at least one of the fixed plates 230 and 231, for example, both. Therefore, the first and second fixing plates 230 and 231 include the placement portion 240 in addition to the first and second blow cavity split molds 210 and 211 and the first and second pressure receiving plates 220 and 221.
- the plurality of raised bottom molds 212 are held via the (third and fourth pressure receiving plates 240A and 240B) and the third fixing plate 232. Thereby, the blow mold unit 200 can be handled as a unit when the mold is replaced.
- the slide metal 250 shown in FIGS. 7A and 7B is fixed to the lower surfaces of the first and second pressure receiving plates 220 and 221.
- the slide metal 250 reduces the frictional resistance when the blow mold unit 200 is opened and closed on the lower base 54, and is made of, for example, an oil-containing metal.
- the slide metal 250 has a pin 251 extending vertically upward and a screw hole 252 formed therein.
- the slide metal 250 includes a pin 251 inserted into the positioning holes provided in the first and second pressure receiving plates 220 and 221 from below, and the first and second pressure receiving plates.
- Bolts 253 inserted into the bolt holes from above are screwed into the screw holes 252 of the slide metal 250 using the holes (hollow portions) 220A and 221A formed in the 220 and 221.
- a roller 260 is supported on the side surfaces of the first and second pressure receiving plates 220 and 221 from the lowermost surface of the blow mold unit 200 (the lower surface of the slide metal 250) so that it can be inserted and removed.
- a housing 261 having an L-shaped cross section is fixed to the side surfaces of the first and second pressure receiving plates 220 and 221.
- a roller 260 rotatably supported by the movable block 262 is accommodated.
- a bolt 263 is screwed onto the upper portion of the housing 261. By tightening the bolt 263, the roller 260 can be pushed down integrally with the movable block 262.
- the movable block 262 and the bolt 263 are an example of a driving member that sets the roller 260 to the lowered position.
- FIG. 9A shows a state where the roller 260 is pushed down.
- the roller 260 since the roller 260 is in rolling contact with the lower base 54, a gap ⁇ 1 is formed between the lowermost surface of the blow mold unit 200 (the lower surface of the slide metal 250) and the lower base 54. Therefore, by pushing down the roller 260, the blow mold unit 200 can move on the lower base 54 with low friction while the roller 260 is in rolling contact with the lower base 54.
- the roller 260 is pushed down to move the blow mold unit 200 as a unit on the lower base 54, and the blow mold unit 200 is connected to the blow molding portion of the blow molding machine 50. Carry in. At this time, if a detachable positioning pin is provided on the lower base 54 and a fitting portion corresponding to the blow-type unit shape is provided, it serves as a guide, so that positioning adjustment becomes easy. Thereafter, the bolts 263 shown in FIG. 9A are loosened, and the roller 260 is accommodated in the housing 261 by the weight of the blow mold unit 200. Accordingly, the blow mold unit 200 is lowered by the stroke ⁇ 1 from the state of FIG. 9A, and the slide metal 250 comes into contact with the lower base 54.
- the mold clamping / mold opening device 82 provided in the blow molding machine 50 is driven to bring the first and second mold clamping plates 81A and 81B into contact with the first and second fixing plates 230 and 231.
- the first and second clamping plates 81A and 81B and the first and second fixing plates 230 and 231 may be bolted in advance. Moreover, you may raise the raising / lowering rod 150 as needed.
- the lower limit position where the flange 234 ⁇ / b> B of the pressure receiving rod 234 contacts the upper end surface of the lifting / lowering rod 150 when the mounting portion 240 is detached from the lower side of the third fixing plate 232.
- the fitted portion 234A is fitted into the recess (fitting portion) 151 of the elevating rod 150 by the depth ⁇ 2.
- the third fixing plate 232 and the pressure receiving rod 234 are lowered by ⁇ 3 from the upper surface of the mounting portion 240.
- the setting of the lower limit position is not limited to the flange 234B, and may be realized by only the fitted portion 234 and the fitting portion 151.
- the lower limit position is set by the depth of the fitting portion 151 formed by a concave portion. You may prescribe.
- the roller 260 is housed in the housing 261 from the state of FIG. 9A and the blow mold unit 200 is lowered, so that the pressure receiving rod 234 whose lowering of ⁇ 3 is restricted by the mounting portion 240 is fitted.
- a part of the joint portion 234A can be fitted in advance into the concave portion (fitting portion) 151 of the lifting rod 150 at a depth of ( ⁇ 2- ⁇ 3). Therefore, when the first and second blow cavity split molds 210 and 211 connected to the mold clamping / mold opening device 82 are subsequently opened, the pressure receiving rod fixed to the third fixing plate 232 that is lowered by ⁇ 3.
- the fitted portion 234A of 234 is fitted from the vertical direction while being guided by the fitting portion 151, and the state shown in FIG. 10 is obtained.
- roller 260 is not essential.
- the third fixing plate 232 that is no longer supported by the mounting portion 240 is dropped by the stroke ⁇ 3, You may implement
- the elevating rod 150 is raised to fit the fitted portion 234 ⁇ / b> A and the fitting portion 151. You can also.
- the fitting portion 151 may be a tapered hole.
- the fitted portion 234A may be a tapered hole, and the fitting portion 151 may be a tapered pin instead of or in addition to the tapered hole.
- the coupling member 235 has a structure capable of opening and closing two halved members.
- the coupling member 235 surrounds and fastens the fitted portion 234A, the flange 234B, and the fitting portion 151.
- the coupling member 235 is not limited to this. In the case of this embodiment, it is necessary to connect the coupling member 235 in the state shown in FIG. 4 in which the pressure receiving rod 234 is lifted by ⁇ 3 or more from the state shown in FIG.
- Blow Mold Unit Height Adjustment Method After the blow mold unit 200 is attached as described above, the height of the blow mold unit 200 can be adjusted. For this purpose, first, the neck mold 90 (see FIG. 3) and the first and second blow cavity split molds 210 and 211 arranged in the blow molding machine 50 are temporarily clamped to form the first and second blow cavity splits. It is determined whether or not the heights of the molds 210 and 211 are appropriate. In the case of improperness, as shown in FIG. 9B and FIG. 11, a gap ⁇ 4 is secured between the lowermost surfaces of the first and second pressure receiving plates 220 and 221 and the slide metal 250, The shim plate 270 shown in FIG. 12 is inserted, and the height of the blow mold unit 200 is adjusted.
- the bolt 253 for fixing the slide metal 250 shown in FIG. 8 is loosened by operating from above using the holes (hollow portions) 220A and 221A formed in the first and second pressure receiving plates 220 and 221. be able to.
- the roller 260 is lowered, so that a gap ⁇ 4 can be secured between the lowermost surfaces of the first and second pressure receiving plates 220 and 221 and the slide metal 250.
- the roller 260 can be used for adjusting the height of the blow mold unit 200 in addition to bringing the blow mold unit 200 into rolling contact with the lower base 54.
- a shim plate 270 can be inserted between the lowermost surfaces of the first and second pressure receiving plates 220 and 221 and the slide metal 250.
- the shim plate 270 is formed in a U shape that is positioned by the positioning pins 251 and the bolts 253.
- the present invention is not limited to a rotary conveyance type blow molding machine, but can be similarly applied to a horizontal conveyance type blow molding machine.
- blow molding machine 54: base (lower base), 81A, 81B: first and second mold clamping plates, 82: mold clamping / mold opening device (blow mold clamping mechanism), 84: blow mold, 150: Lift rod, 151: fitting part, 200: blow mold unit, 210, 211: first and second blow cavity split mold, 212: raised bottom mold, 220: first pressure plate, 220A: hollow part, 221 : Second pressure receiving plate, 221A: hollow portion, 230: first fixing plate, 231: second fixing plate, 232: third fixing plate, 232A: first surface, 232B: second surface, 234 : Pressure receiving rod, 234A: fitted portion, 234B: flange, 235: coupling member, 240: mounting portion, 240A: third pressure receiving plate, 240B: fourth pressure receiving plate, 250: slide metal , 251: Pin, 252: Screw , 253: bolt, 260: roller, 262, 263: roller driving member, 270: shim plate, 250
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- 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)
Abstract
Description
ブロー成形機の型締め/型開装置により線対称で移動する第1,第2の型締め板と、前記ブロー成形機の昇降装置とに連結されるブロー型ユニットであって、
パーティング面同士を当接させて型締めされる第1,第2のブローキャビティ割型と、前記第1,第2のブローキャビティ割型にて規定される複数のキャビティに複数の上げ底形状を規定する複数の上げ底型と、を有するブロー型と、
パーティング面同士を当接させて型締め圧力を圧受けする第1,第2の圧受け板と、
前記第1のブローキャビティ割型及び前記第1の圧受け板が固定され、前記第1の型締め位置に連結される第1の固定板と、
前記第2のブローキャビティ割型及び前記第2の圧受け板が固定され、前記第2の型締め位置に連結される第2の固定板と、
前記第1,第2の固定板の間に配置され、前記複数の上げ底型を第1面に固定する第3の固定板と、
前記第3の固定板の前記第1面と対向する第2面より垂直に延びる圧受けロッドと、
前記第1,第2の固定板の少なくとも一方に固定され、前記第1,第2のブローキャビティ割型の型閉じ時に前記第3の固定板が載置される載置部と、
を有し、
前記圧受けロッドは、前記昇降装置の昇降ロッドに形成された嵌合部に垂直方向にて嵌合される被嵌合部を有するブロー型ユニットに関する。
基盤と、
前記基盤上に支持される上述したブロー型ユニットと、
前記基盤上に設けられ、前記のブロー型ユニットの前記第1,第2の固定板を駆動して、前記第1,第2のブローキャビティ割型を型締め/型開駆動する型締め/型開装置と、
昇降ロッドを昇降駆動して、前記ブロー型ユニットの前記複数の上げ底型を昇降する昇降装置と、
を有するブロー成形機に関する。
上述したブロー型ユニットを、ブロー成形機に配置された型締め/型開装置により線対称で移動する第1,第2の型締め板の間に搬入する工程と、
前記ブロー型ユニットの前記第1,第2の固定板を、前記型締め/型開装置の前記第1,第2の型締め板に固定する工程と、
前記型締め/型開装置を駆動して、前記第1,第2のブローキャビティ割型を型開きする工程と、
前記圧受けロッドと、前記圧受けロッドの前記被嵌合部が嵌合されている前記嵌合部を有する前記昇降ロッドとを、カップリング部材により連結する工程と、
を有するブロー型ユニットの交換方法に関する。
ローラーを有する上述のブロー型ユニットを、前記ブロー型ユニットのローラーを前記下降位置に設定して、前記ローラーをブロー成形機の基盤と転接させながら、前記ブロー成形機に配置された型締め/型開装置により線対称で移動する第1,第2の型締め板の間に搬入する工程と、
前記ローラーを前記上昇位置に設定する工程と、
前記ブロー型ユニットの前記第1,第2の固定板を、前記型締め/型開装置の前記第1,第2の型締め板に固定する工程と、
前記型締め/型開装置を駆動して、前記第1,第2のブローキャビティ割型を型開きする工程と、
前記圧受けロッドと、前記圧受けロッドの前記被嵌合部が嵌合されている前記嵌合部を有する前記昇降ロッドとを、カップリング部材により連結する工程と、
を有するブロー型ユニットの交換方法に関する。
先ず、本発明が適用されるブロー成形機の一例を説明する。図1は例えば4ステーションのブロー成形機50を示している。このブロー成形機50は、図2及び図3に示すように、機台52と、下部基盤54と、上部基盤56と、牽引板58と、シリンダ固定板60とを有し、上部基盤56と、牽引板58と、シリンダ固定板60とが下部基盤54を貫通する複数、例えば4本のタイバー62(図1参照)によって連結固定されている。
次に、図4~図8を参照して、ブロー型ユニット200について説明する。図4~図6は、ブロー成形機50に取り付けられたブロー型ユニット200の正面図、側面図及び平面図である。図4及び図5では、ブロー成形機50の構成として、図2に示す下部基盤(基盤)54と、例えば油圧シリンダ等の昇降装置の例えば2本の昇降ロッド150が示されている。図6では、図2に示す型締め/型開装置82により駆動される第1,第2の型締め板81A,81Bが示されている。
図9(A)に示すようにローラー260を押し下げて、ブロー型ユニット200を一体として下部基盤54上を移動させて、ブロー型ユニット200をブロー成形機50のブロー成形部に搬入する。この際、下部基盤54上に着脱自在の位置決めピンを設け、また、ブロー型ユニット状に対応する嵌合部を備えておくと、ガイドの役割をするため、位置決め調整が容易になる。その後、図9(A)に示すボルト263を緩めることで、ブロー型ユニット200の自重により、ローラー260をハウジング261内に収容する。それにより、図9(A)の状態からブロー型ユニット200がストロークδ1だけ下降して、スライドメタル250が下部基盤54と接触する。その後、ブロー成形機50に設けられた型締め/型開装置82を駆動させ、第1,第2の型締め板81A,81Bを第1,第2の固定板230,231と接触させる。この際、事前に、第1,第2の型締め板81A,81Bと第1,第2の固定板230,231をボルト固定しても構わない。また、必要に応じて昇降ロッド150を上昇させておいても良い。
上述したようにしてブロー型ユニット200を取り付けた後に、ブロー型ユニット200の高さ調整を行うことができる。そのために先ず、ブロー成形機50に配置されたネック型90(図3参照)と第1,第2のブローキャビティ割型210,211を仮型締めして、第1,第2のブローキャビティ割型210,211の高さが適正であるか否かを判別する。不適正である場合には、図9(B)及び図11に示すように第1,第2の圧受け板220,221の最下面とスライドメタル250との間に隙間δ4を確保して、図12に示すシム板270を挿入し、ブロー型ユニット200の高さの調整が行われる。この際、図8に示すスライドメタル250を固定するボルト253を、第1,第2の圧受け板220,221に形成した穴(中空部)220A,221Aを利用して上方から操作して緩めることができる。その後、図9(B)に示すようにローラー260を下降させることで、第1,第2の圧受け板220,221の最下面とスライドメタル250との間に隙間δ4を確保できる。このようにローラー260は、下部基盤54上で転接させてブロー型ユニット200を搬入する他、ブロー型ユニット200の高さ調整時にも使用することができる。
Claims (9)
- ブロー成形機の型締め/型開装置により線対称で移動する第1,第2の型締め板と、前記ブロー成形機の昇降装置とに連結されるブロー型ユニットであって、
パーティング面同士を当接させて型締めされる第1,第2のブローキャビティ割型と、前記第1,第2のブローキャビティ割型にて規定される複数のキャビティに複数の上げ底形状を規定する複数の上げ底型と、を有するブロー型と、
パーティング面同士を当接させて型締め圧力を圧受けする第1,第2の圧受け板と、
前記第1のブローキャビティ割型及び前記第1の圧受け板が固定され、前記第1の型締め位置に連結される第1の固定板と、
前記第2のブローキャビティ割型及び前記第2の圧受け板が固定され、前記第2の型締め位置に連結される第2の固定板と、
前記第1,第2の固定板の間に配置され、前記複数の上げ底型を第1面に固定する第3の固定板と、
前記第3の固定板の前記第1面と対向する第2面より垂下された圧受けロッドと、
前記第1,第2の固定板の少なくとも一方に固定され、前記第1,第2のブローキャビティ割型の型閉じ時に前記第3の固定板が載置される載置部と、
を有し、
前記圧受けロッドは、前記昇降装置の昇降ロッドに形成された嵌合部に垂直方向にて嵌合される被嵌合部を有することを特徴とするブロー型ユニット。 - 請求項1において、
前記圧受けロッドの前記被嵌合部と前記昇降ロッドの前記嵌合部との少なくとも一方にテーパー面が形成され、前記嵌合部は前記被嵌合部を芯出し案内することを特徴とするブロー型ユニット。 - 請求項1または2において、
前記載置部は、パーティング面同士を当接させて型締め圧力を圧受けする第3,第4の圧受け板を含み、前記第3の圧受け板が前記第1の固定板に固定され、前記第4の圧受け板が前記第2の固定板に固定されていることを特徴とするブロー型ユニット。 - 請求項1から3のいずれか一項において、
前記第1,第2の圧受け板の各々は、
前記ブロー成形機の基盤と転接するローラーと、
前記ローラーが前記ブロー型ユニットの最下面から突出しない上昇位置から前記ローラーが前記基盤と転接する下降位置へと、前記ローラーを下降駆動させるローラー駆動部材と、
を有することを特徴とするブロー型ユニット。 - 請求項4において、
前記第1の圧受け板は、前記第1のブローキャビティ割型の両側にて前記第1の固定板に固定され、
前記第2の圧受け板は、前記第2のブローキャビティ割型の両側にて前記第2の固定板に固定され、
前記第1,第2の圧受け板の最下面には、スライドメタルがそれぞれ固定され、
前記スライドメタルは、前記第1,第2の圧受け板の一方の前記最下面に形成された孔に挿入されるピンと、前記第1,第2の圧受け板の一方にボルトが螺合されるねじ孔とを有し、
前記第1,第2の圧受け板の各々は中空部を有し、前記中空部に臨む上面から前記最下面に貫通するボルト孔が形成されて、前記ボルトが上方から挿入されて前記ねじ孔に螺合されることを特徴とするブロー型ユニット。 - 基盤と、
前記基盤上に支持される請求項1から5のいずれかに一項に記載のブロー型ユニットと、
前記基盤上に設けられ、前記のブロー型ユニットの前記第1,第2の固定板を駆動して、前記第1,第2のブローキャビティ割型を型締め/型開駆動する型締め/型開装置と、
昇降ロッドを昇降駆動して、前記ブロー型ユニットの前記複数の上げ底型を昇降する昇降装置と、
を有することを特徴とするブロー成形機。 - 請求項1から5のいずれか一項に記載のブロー型ユニットを、ブロー成形機に配置された型締め/型開装置により線対称で移動する第1,第2の型締め板の間に搬入する工程と、
前記ブロー型ユニットの前記第1,第2の固定板を、前記型締め/型開装置の前記第1,第2の型締め板に固定する工程と、
前記型締め/型開装置を駆動して、前記第1,第2のブローキャビティ割型を型開きする工程と、
前記圧受けロッドと、前記圧受けロッドの前記被嵌合部が嵌合されている前記嵌合部を有する前記昇降ロッドとを、カップリング部材により連結する工程と、
を有することを特徴とするブロー型ユニットの交換方法。 - 請求項4に記載のブロー型ユニットを、前記ブロー型ユニットのローラーをブロー成形機の基盤と転接させながら、前記ブロー成形機に配置された型締め/型開装置により線対称で移動する第1,第2の型締め板の間に搬入する工程と、
前記ブロー型ユニットの前記第1,第2の固定板を、前記型締め/型開装置の前記第1,第2の型締め板に固定する工程と、
前記型締め/型開装置を駆動して、前記第1,第2のブローキャビティ割型を型開きする工程と、
前記圧受けロッドと、前記圧受けロッドの前記被嵌合部が嵌合されている前記嵌合部を有する前記昇降ロッドとを、カップリング部材により連結する工程と、
を有することを特徴とするブロー型ユニットの交換方法。 - 請求項5に記載のブロー型ユニットを、前記ブロー型ユニットのローラーをブロー成形機の基盤と転接させながら、前記ブロー成形機に配置された型締め/型開装置により線対称で移動する第1,第2の型締め板の間に搬入する工程と、
前記ブロー型ユニットの前記第1,第2の固定板を、前記型締め/型開装置の前記第1,第2の型締め板に固定する工程と、
前記型締め/型開装置を駆動して、前記第1,第2のブローキャビティ割型を型開きする工程と、
前記圧受けロッドと、前記圧受けロッドの前記被嵌合部が嵌合されている前記嵌合部を有する前記昇降ロッドとを、カップリング部材により連結する工程と、
前記ブロー成形機に配置されたネック型と前記第1,第2のブローキャビティ割型を仮型締めして、前記第1,第2のブローキャビティ割型の高さが適正であるか否かを判別し、不適正である場合には、前記第1,第2のブローキャビティ割型の型開き後に、前記第1,第2の固定板と前記第1,第2の型締め板との締結状態を緩め、前記ローラーを降下させて、前記第1,第2の圧受け板の最下面と前記スライドメタルとの間にシム板を挿入して、前記ブロー型ユニットの高さを調整する工程と、
を有することを特徴とするブロー型ユニットの交換方法。
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CN201280052275.9A CN103889686B (zh) | 2011-10-24 | 2012-10-22 | 吹塑模单元、吹塑成形机以及吹塑模单元的更换方法 |
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CN108349143B (zh) * | 2015-10-29 | 2021-06-04 | 日精Asb机械株式会社 | 模具单元、吹塑成型设备和吹塑成型方法 |
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