WO2013062014A1 - 射出ブロー成形装置及びそれに用いられる金型ユニット並びに射出ブロー成形方法 - Google Patents
射出ブロー成形装置及びそれに用いられる金型ユニット並びに射出ブロー成形方法 Download PDFInfo
- Publication number
- WO2013062014A1 WO2013062014A1 PCT/JP2012/077510 JP2012077510W WO2013062014A1 WO 2013062014 A1 WO2013062014 A1 WO 2013062014A1 JP 2012077510 W JP2012077510 W JP 2012077510W WO 2013062014 A1 WO2013062014 A1 WO 2013062014A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- mold
- preform
- blow
- injection
- core
- Prior art date
Links
- 238000010102 injection blow moulding Methods 0.000 title claims description 31
- 238000001746 injection moulding Methods 0.000 claims abstract description 44
- 238000000071 blow moulding Methods 0.000 claims abstract description 41
- 238000001816 cooling Methods 0.000 claims abstract description 22
- 238000002347 injection Methods 0.000 claims description 45
- 239000007924 injection Substances 0.000 claims description 45
- 238000003825 pressing Methods 0.000 claims description 17
- 239000002994 raw material Substances 0.000 claims description 11
- 230000002093 peripheral effect Effects 0.000 claims description 8
- 230000032258 transport Effects 0.000 claims description 5
- 230000008602 contraction Effects 0.000 abstract description 6
- 238000001179 sorption measurement Methods 0.000 abstract description 6
- 238000004519 manufacturing process Methods 0.000 description 15
- 239000011347 resin Substances 0.000 description 9
- 229920005989 resin Polymers 0.000 description 9
- 239000000463 material Substances 0.000 description 7
- 239000012530 fluid Substances 0.000 description 6
- 238000000465 moulding Methods 0.000 description 6
- 125000006850 spacer group Chemical group 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 238000009826 distribution Methods 0.000 description 4
- 230000003028 elevating effect Effects 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 239000004417 polycarbonate Substances 0.000 description 3
- 229920000515 polycarbonate Polymers 0.000 description 3
- -1 polypropylene Polymers 0.000 description 2
- 230000000717 retained effect Effects 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000037237 body shape Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B11/00—Making preforms
- B29B11/06—Making preforms by moulding the material
- B29B11/08—Injection 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
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/40—Removing or ejecting moulded articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/02—Combined blow-moulding and manufacture of the preform or the parison
- B29C49/06—Injection blow-moulding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/42—Component parts, details or accessories; Auxiliary operations
- B29C49/48—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
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/72—Heating or cooling
- B29C45/7207—Heating or cooling of the moulded articles
- B29C2045/7214—Preform carriers for cooling preforms
-
- 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
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/72—Heating or cooling
- B29C45/7207—Heating or cooling of the moulded articles
- B29C2045/7214—Preform carriers for cooling preforms
- B29C2045/7235—Mechanical retaining means for preform ends
-
- 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
- B29C2049/4879—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
- B29C2949/076—Preforms or parisons characterised by their configuration characterised by the shape
- B29C2949/0761—Preforms or parisons characterised by their configuration characterised by the shape characterised by overall the shape
-
- 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
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
- B29C45/261—Moulds having tubular mould cavities
-
- 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
-
- 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
- B29L2031/716—Bottles of the wide mouth type, i.e. the diameters of the bottle opening and its body are substantially identical
Definitions
- the present invention relates to an injection blow molding apparatus for forming a preform of a resin material by injection (injection) molding and then forming the preform into a hollow molded product of a predetermined shape by blow molding, a mold unit used therefor, and injection blow molding. Regarding the method.
- an injection blow molding apparatus that forms a preform made of a resin material by injection molding and then molds the preform into a predetermined shape by blow molding is known as a molding apparatus for hollow molded articles such as a bulb cover.
- a molding apparatus for hollow molded articles such as a bulb cover.
- the molding apparatus described in Patent Document 1 is a so-called vertical clamp type injection blow molding apparatus, which forms a hollow molded product by the following process.
- a raw material resin is filled into a gap formed by these molds to form a bottomed parison (preform).
- the core mold and the cavity mold are separated from each other, and the cavity mold and the blow mold are slid so that the blow mold is at a position facing the core mold. That is, the parison (preform) is transported from a position facing the cavity mold to a position facing the blow mold.
- the parison (preform) is blow-molded in a state where the core mold and the blow mold are brought close to each other to obtain a hollow molded article having a predetermined shape.
- the preform is generally conveyed in the apparatus while being held by a neck mold.
- the portion gripped by the neck mold becomes a neck portion of a hollow molded product.
- a screw or the like for fixing a cap is formed on the neck portion.
- a neck portion on which a screw or the like is formed.
- a neck shape is essential.
- some hollow molded products do not have a neck portion, such as a light bulb cover.
- the neck mold is not essential. For this reason, when manufacturing a hollow molded product that does not have a neck portion, if the preform is gripped and transported by the neck mold, the mold cost will increase, and the cost will increase due to a decrease in manufacturing efficiency. There is also a risk of inviting. Specifically, an extra step of finally excising the neck portion of the hollow molded product is required. *
- the present invention has been made in view of such circumstances, and an injection blow molding apparatus capable of manufacturing a hollow molded product having no neck portion relatively easily and at low cost, a mold unit used therefor, and injection An object is to provide a blow molding method.
- a first aspect of the present invention that solves the above problems is an injection in which a raw material is introduced into a space between an injection cavity mold and a core mold inserted into the injection cavity mold from above to form a preform.
- Transporting means for transporting wherein the transporting means cools the preform after injection molding, and transports the preform while being held in the core mold by a contraction force accompanying the cooling.
- the preform is satisfactorily held in the core mold by the shrinkage force accompanying the cooling of the preform. That is, the preform is held by being adsorbed to the core mold by contracting with cooling. For this reason, when manufacturing the hollow molded product which is not provided with the neck part, a preform can be conveyed favorably, without using a neck type
- an outer peripheral surface of an opening edge of the preform is defined on an upper portion of the injection cavity mold, and the injection cavity mold Is an injection blow molding apparatus provided with a cylindrical split mold that can be separated in the vertical direction.
- the preform when the cavity mold and the core mold are separated from each other, the preform can be satisfactorily released from the cavity mold.
- a cylindrical mold release member that defines an opening surface of the preform moves in the vertical direction on the outer periphery of the core mold.
- the injection blow molding apparatus is provided so as to be capable of being provided.
- the hollow molded product can be satisfactorily released from the core mold when the hollow molded product molded by the blow molding section is taken out.
- an injection molding portion for introducing a raw material into a space between an injection cavity mold and a core mold inserted from above into the injection cavity mold to form a preform,
- the preform is blow molded in a blow mold to form a hollow molded product of a predetermined shape, and the preform is cooled after injection molding, and the preform is held in the core mold by the shrinkage force accompanying this cooling.
- a mold unit for use in an injection blow molding apparatus comprising: a core unit; and an opening of the preform provided on the outer periphery of the core mold and movably in the vertical direction.
- a mold unit comprising: a cylindrical release member that defines a surface.
- the hollow molded product can be satisfactorily released from the core mold when the hollow molded product is taken out from the blow molding unit of the injection blow molding apparatus.
- the core mold and the cylindrical release member are connected via an urging member, and the cylindrical release member is
- the mold unit includes a pressing means that can be pressed downward.
- the cylindrical release member moves downward by a predetermined distance by pressing the cylindrical release member with the pressing means against the urging force of the urging member.
- an injection molding part for introducing a raw material into a space between an injection cavity mold and a core mold inserted from above into the injection cavity mold to form a preform,
- the preform is blow molded in a blow mold to form a hollow molded product of a predetermined shape, and the preform is cooled after injection molding, and the preform is held in the core mold by the shrinkage force accompanying this cooling.
- a mold unit used in an injection blow molding apparatus comprising: a blow cavity mold that forms a shoulder of the hollow molded article; and The mold unit includes an integrated bottom mold that forms the bottom.
- the bottom mold is not a split mold but an integral mold, a hollow molded product can be satisfactorily molded without leaving a parting line at the bottom.
- the mold in the mold unit according to the sixth aspect, is inserted into the lower side of the bottom mold when the blow mold is closed, and the bottom mold is brought into contact with the bottom surface of the bottom mold.
- the mold unit includes a support member that is raised and supported.
- the blow cavity mold and the bottom mold constituting the blow mold can be satisfactorily closed, and the occurrence of parting lines in the hollow molded product can be suppressed.
- the support member includes a guide member that contacts the bottom surface of the bottom mold and guides the bottom mold. In the mold unit.
- vibration generated in the blow mold when the mold is closed can be suppressed, breakage of the blow mold can be suppressed, and generation of a parting line can be more reliably suppressed.
- an inclined guided surface is provided on the bottom surface side of the bottom mold, and the bottom mold is disposed below the bottom mold when the blow mold is closed.
- the bottom mold is raised by sliding the guide member on the guided surface.
- vibration generated in the blow mold when the mold is closed can be more reliably suppressed.
- an injection molding process for forming a preform by introducing raw materials into a space between an injection cavity mold and a core mold inserted from above into the injection cavity mold,
- a blow molding step for blow-molding a preform in a blow mold to form a hollow molded product having a predetermined shape, and a conveying step for holding the preform in the core mold and transporting the preform from the injection molding section to the blow molding section;
- the transporting step the preform is cooled after injection molding, and the preform is held in the core mold and transported by the contraction force accompanying this cooling.
- the preform is favorably held in the core mold by the adhesive strength of the preform. For this reason, when manufacturing the hollow molded product which is not provided with the neck part, a preform can be conveyed favorably, without using a neck type
- the preform is satisfactorily held in the core mold, so that it is not necessary to use the neck mold when manufacturing a hollow molded product having no neck portion.
- the die cost can be reduced.
- unnecessary neck portions need not be formed, and the amount of resin can be reduced accordingly. Therefore, the manufacturing efficiency can be improved and the manufacturing cost can be reduced.
- the neck mold it is easy to mold a hollow molded product having a uniform thickness distribution because the decrease in the amount of heat retained during injection molding under the neck of the preform is suppressed. Furthermore, since it is not necessary to form the neck portion, the width of the design of the hollow molded product that can be molded is widened.
- the hollow molded product can be favorably released from the core mold when the blow molded part is taken out.
- a hollow molded article 1 shown in FIG. 1 is a light bulb cover formed of a resin material such as polycarbonate, and is formed in a substantially spherical shape with a predetermined radius R1 except for an opening 2 for inserting a light bulb. .
- a minute flange portion 3 is provided around the opening 2. That is, the hollow molded product 1 includes a bottom 1a that forms a hemispherical portion opposite to the opening 2 side, and a shoulder 1b that connects the bottom 1a and the flange 3.
- the shape of the shoulder 1b is not particularly limited, but in the present embodiment, the shoulder 1b is formed in a substantially spherical shape having a radius R1 continuous from the bottom 1a.
- the hollow molded product (light bulb cover) 1 is fixed to a metal fitting of the light bulb by, for example, engaging a flange portion 3.
- the method for fixing the hollow molded product (light bulb cover) and the metal fitting of the light bulb is not particularly limited.
- a light bulb cover there is a light bulb cover that is fixed to a metal fitting of a light bulb by a screw portion or the like provided in a so-called neck portion. It is of a type that does not have.
- the hollow molded product 1 having such a shape is formed by blow molding a preform 5 formed by injection molding as shown in FIG. *
- the injection blow molding apparatus 10 includes an injection molding unit 30 that is connected to the injection apparatus 20 and injection-molds the preform 5, and a blow-molded preform 5 that is a hollow molded product. 1 and a blow molding part 40.
- the injection molding unit 30 and the blow molding unit 40 are arranged at positions rotated in a range of about 90 ° to 180 ° around the conveying means 70, as will be described in detail later. *
- the injection molding unit 30 is provided with a hot runner mold 31 on a machine base 32 to which a nozzle at the tip of an injection device is connected.
- a hot runner mold 31 On the hot runner mold 31, an injection cavity mold 33 that defines the outer peripheral surface of the body portion of the preform 5 is fixed.
- the injection cavity mold 33 is provided with a cooling circuit (not shown) for cooling the injection cavity mold 33.
- a cylindrical split mold 34 that defines the outer peripheral surface of the opening edge of the preform 5 is provided.
- the cylindrical split mold 34 is provided so as to be separable from the injection cavity mold 33 in the vertical direction (vertical direction).
- an urging member 35 that is configured by, for example, a compression spring and urges them in a direction (vertical direction) away from each other is provided between the injection cavity mold 33 and the cylindrical split mold 34. ing. Therefore, in the opened state, a slight gap is formed between the injection cavity mold 33 and the cylindrical split mold 34.
- the injection molding unit 30 introduces a resin material as a raw material into a space 36 defined between the injection cavity mold 33 and the cylindrical split mold 34 and the mold unit 50 disposed thereabove. Thus, the preform 5 is formed.
- the mold unit 50 includes a core mold 51 and a cylindrical release member 52 provided on the outer periphery of the core mold 51 so as to be movable in the vertical direction (vertical direction).
- the core mold 51 is fixed to an in-core fixing block 53 including a plurality of members provided with a temperature control medium and an air circulation circuit.
- the upper end side is fixed to the rotating plate fixing member 55 via the heat insulating plate 54, and the rotating plate fixing member 55 is fixed to the rotating plate 71 constituting the conveying means 70.
- the preform 5 held by the core mold 51 is conveyed from the injection molding unit 30 to the blow molding unit 40 by rotating the rotating plate 71.
- the core mold 51 includes a first incore 56 and a second incore 57 that is attached to the outer periphery of the first incore 56.
- the front end side (lower end side) of the first incore 56 has the body shape of the preform 5, and the second incore 57 is attached to the upper end side of the body portion.
- the second incore 57 defines the inner peripheral surface of the opening edge of the preform 5.
- an air flow path 58 is defined between the first incore 56 and the second incore 57 constituting the core mold 51. As will be described later, in the blow molding unit 40, air is supplied into the preform 5 through the air flow path 58 from an air outlet port 59 at the tip of the second incore 57.
- the cylindrical release member 52 is attached to the outer peripheral portion of the second in-core 57, and defines the outer periphery of the opening surface 5a and the opening edge of the preform 5 (see FIG. 2).
- the cylindrical release member 52 is fixed to a stripper plate 60 supported on the lower surface side of the in-core fixing block 53.
- the in-core fixing block 53 and the stripper plate 60 are connected to each other via an urging member 61 configured by a tension spring, for example. Therefore, the stripper plate 60 is normally supported in a state of being in contact with the in-core fixing block 53.
- the mold unit 50 includes a rod-shaped pressing member 62 as a pressing means capable of pressing the cylindrical release member 52 downward.
- the pressing member 62 is configured to be movable in the vertical direction (vertical direction) by an air cylinder or the like. As will be described later, by moving the pressing member 62 downward at a predetermined timing and pressing the stripper plate 60, the stripper plate 60 moves away from the in-core fixing block 53 and moves downward by a predetermined distance. That is, when the pressing member 62 is moved downward, the cylindrical release member 52 is moved downward accordingly.
- the core mold 51 fixed to the in-core fixing block 53 and the cylindrical release member 52 are connected via the biasing member 61, and the cylindrical release member 52 is moved downward by the pressing member 62. It is pressed toward. Therefore, only when the cylindrical release member 52 is pressed by the pressing member 62 against the urging force of the urging member 62, the cylindrical release member moves downward by a predetermined distance. As will be described later in detail, the hollow molded product can be satisfactorily released from the core mold in the blow molding portion of the injection blow molding apparatus.
- the first in-core 56 is formed in a hollow shape with a closed tip, although not shown in the figure, and a hollow portion is formed inside.
- a pipe member is inserted into the hollow portion, and a temperature control fluid passage is formed to circulate a temperature control fluid such as oil. That is, the temperature control fluid is supplied to the inside of the pipe member through the introduction path 66, passes through the gap between the inner wall surface of the hollow portion and the pipe member, and is discharged to the outside through the discharge path 67. It has become. *
- the preform 5 injection molded by the injection molding unit 30 is conveyed to the blow molding unit 40 while being held by the core mold 51 constituting the mold unit 50 as described above. That is, the preform 5 is conveyed from the injection molding unit 30 to the blow molding unit 40 by rotating the rotating plate 71 while the conveying unit 70 holds the preform 5 on the core mold 51.
- the transport means 70 cools the preform 5 to a predetermined temperature via the mold unit 50 and holds the preform 5 on the core mold 51 by the contraction force accompanying this cooling. .
- the preform 5 is held on the core mold 51 by the adsorption force accompanying the cooling shrinkage of the preform 5.
- a temperature adjusting fluid channel (not shown) is formed in the first in-core 56 constituting the core mold 51 as described above, and the temperature adjusting supplied to the temperature adjusting fluid channel.
- the temperature of the preform 5 is adjusted from the inside by adjusting the temperature of the fluid.
- the preform 5 is forcibly cooled from the outside by an injection cavity mold 33 provided with a cooling circuit.
- the preform 5 can be satisfactorily held on the core mold 51 by the shrinkage force (adsorption force) of the preform 5 based on these actions.
- the “cooling of the preform 5” refers to a state in which the temperature of the preform 5 is relatively lowered as compared with the time of injection molding, and even if the preform 5 is temperature-controlled by the core mold 51. Good.
- the temperature control temperature of the preform 5 varies depending on the type of the resin material, but when the preform 5 reaches the blow molding portion 40, it needs to be a temperature suitable for blow molding.
- the temperature of the core mold 51 is preferably set to 160 ° C. or higher and 180 ° C. or lower. If the temperature of the core mold 51 is made higher or lower than this temperature range, the preform 5 will be out of the proper temperature during blow molding, which is not preferable. *
- the preform 5 is blown from the injection molding unit 30 without being gripped by the mold by rotating the rotating plate 71 while the preform 5 is held by the core mold 51 by the contraction force (adsorption force) accompanying the cooling.
- the molded part 40 can be transported satisfactorily. Even when forming a hollow molded article having no neck portion as in the present embodiment, the preform 5 can be favorably conveyed from the injection molding portion 30 to the blow molding portion 40.
- the blow molding unit 40 is provided with a blow mold unit 80 having a blow mold that defines the outer shape of the hollow molded product 1.
- the blow mold unit 80 includes a blow cavity mold 41 and a bottom mold 42 as blow molds.
- the blow cavity mold 41 forming the shoulder 1b of the hollow molded product 1 is composed of a pair of split molds 41a and 41b.
- the split molds 41a and 41b are attached to the mold clamping plate 44 via the blow cavity fixing plate 43. It is fixed.
- the mold clamping plate 44 is configured to be movable on the machine base 45 by a hydraulic cylinder or the like (not shown).
- the blow cavity mold 41 is clamped by pressing the split molds 41 a and 41 b with these mold clamping plates 44. *
- the bottom mold 42 forming the bottom 1a of the hollow molded product 1 is an integral mold having a substantially hemispherical shape, and is provided on the machine base 45 so as to be lifted and lowered by a lifting mechanism. Specifically, the bottom mold 42 is fixed to the bottom mold fixing plate 42a. On the machine base 45 side, an elevating cylinder 46 having a spacer 46a connected to the tip (upper end) is provided at a position opposite to the bottom mold fixing plate 42a. With this configuration, when the elevating cylinder 46 is raised, the bottom mold 42 is pushed up together with the bottom mold fixing plate 42a via the spacer 46a.
- a guide shaft 47 is provided on the bottom surface of the bottom mold fixing plate 42a, and the guide shaft 47 extends to the lower side of the spacer 46a through a through hole 46b provided in the spacer 46a.
- two guide shafts 47 are provided with the lifting cylinder 46 interposed therebetween.
- a coil spring 48 is attached to the tip portion of each guide shaft 47 protruding downward from the spacer 46a. The coil spring 48 is fixed between a spacer 46 a and a fixing plate 47 a provided at the tip of the guide shaft 47. That is, the bottom mold fixing plate 42 a and the bottom mold 42 are always urged downward by the coil spring 48.
- the bottom mold 42 is not a split mold but an integral mold having a spherical shape, the hollow molded product 1 can be molded without leaving a parting line at the bottom. Therefore, by adopting such a mold unit, for example, a hollow molded article 1 such as a light bulb cover can be manufactured satisfactorily.
- a support member 90 is provided on the blow cavity fixing plate 43.
- the support member 90 is inserted below the bottom mold 42 when the blow cavity mold 41 is closed, and comes into contact with the bottom surface side of the bottom mold 42 to raise the bottom mold 42 and support the bottom mold 42. Can do.
- the support member 90 is inserted below the bottom mold fixing plate 42a and comes into contact with the bottom surface of the bottom mold fixing plate 42a, thereby raising and supporting the bottom mold 42.
- the support member 90 is a roller 91 (an example of a guide member) that is a guide member that contacts the bottom surface of the bottom mold 42 and guides the bottom mold 42 when inserted into the lower side of the bottom mold 42. ).
- an inclined guided surface 42b is provided on the bottom surface side of the bottom die 42, in this embodiment, on the bottom surface of the bottom die fixing plate 42a, as shown in FIG.
- the guided surface 42 b is inclined at a predetermined angle ⁇ with respect to the center of the bottom surface of the bottom mold 42.
- the gap between the blow cavity mold 41 and the bottom mold 42 can be made relatively narrow without damaging these molds. . Therefore, it is possible to suppress the parting line generated in the hollow molded product 1 from being noticeable.
- the support member 90 includes the roller 91 and the guided surface 42b is provided on the bottom mold fixing plate 42a, vibration generated in the mold when the mold is closed can be effectively suppressed. Therefore, it is possible to more reliably suppress the generation of parting lines without damaging the mold.
- the bottom mold fixing plate 42a and the bottom mold 42 are always urged downward by the coil spring 48 as described above.
- the bottom mold 42 is slightly lowered by the biasing force of the coil spring 48.
- the bottom mold 42 can be slightly lifted and lowered by the guide shaft 47, the coil spring 48, the support member 90, and the like separately from the lifting and lowering by the lifting cylinder 46.
- mold 42 can be adjusted comparatively easily.
- the gap between the blow cavity mold 41 and the bottom mold 42 is adjusted by the support member 90 that supports the bottom mold 42, but the method for adjusting the gap between the molds is particularly limited. It is not a thing.
- the raising speed of the bottom mold 42 by the elevating cylinder 46 may be set in multiple stages. That is, by appropriately adjusting the ascent speed, the gap between the blow cavity mold 41 and the bottom mold 42 can be adjusted also by raising and lowering by the raising and lowering cylinder 46.
- the preform 5 is blow-molded in a space 49 defined by clamping the blow cavity mold 41 and the bottom mold 42 and the mold unit 50 disposed above the blow cavity mold 41 and the bottom mold 42.
- the hollow molded product 1 having a predetermined shape is formed.
- the neck type since the neck type is not used, there is a sufficient amount of retained heat under the neck of the preform 5.
- the preform 5 is conveyed from the injection molding unit 30 by the core mold 51, the preform 5 is maintained at a temperature suitable for stretching. Therefore, air can be blown from the air outlet 59 at a position close to the opening end of the preform 5 and blow-molded. For this reason, a hollow molded product having a uniform wall thickness distribution (without a neck portion) can be easily molded.
- the injection cavity mold 33 and the mold unit 50 including the core mold 51 are clamped, and the injection cavity mold 33 and the mold are molded.
- Raw materials are introduced into the space 36 between the unit 50 and the preform 5 is formed (injection molding process).
- the preform 5 is cooled while the core mold 51 is kept at a predetermined temperature (that is, an appropriate temperature at the time of blow molding) as described above, and the shrinkage force (adsorption) associated with this cooling is reduced. Force) to the blow mold 40 while being held in the core mold 51 (conveying step).
- a predetermined temperature that is, an appropriate temperature at the time of blow molding
- the injection cavity mold 33 and the mold unit 50 are opened as shown in FIG. 8B.
- the cylindrical split mold 34 is provided on the injection cavity mold 33 via the biasing member 35.
- the cylindrical split mold 34 is also pressed by the urging member 35 and raised.
- a gap 100 of several millimeters to several centimeters is formed between the injection cavity mold 33 and the cylindrical split mold 34.
- the preform 5 is conveyed from the injection molding unit 30 to the blow molding unit 40 together with the mold unit 50 by rotating the rotating plate 71.
- the rotation angle can be appropriately changed as described above, but is particularly preferably 90 °, 120 °, and 180 °.
- the blow cavity mold 41 and the bottom mold 42 and the mold unit 50 including the core mold 51 are clamped, and these molds are used for clamping.
- the preform 5 is blow-molded in the space 49 to be formed. That is, air is supplied into the preform 5 through the air flow path 58 and the air outlet 59 defined between the first incore 56 and the second incore 57 to blow-mold the preform 5. .
- the hollow molded product 1 having a predetermined shape is formed (blow molding process).
- the blow cavity mold 41 and the bottom mold 42 and the mold unit 50 are opened to collect the hollow molded product 1.
- the opening peripheral edge of the hollow molded product 1 is maintained in the state of being held by the core mold 51. In this state, for example, a collection tray (not shown) is inserted to a position facing the hollow molded product.
- the hollow molded product 1 is released from the core mold 51, dropped into the tray, and collected.
- the cylindrical release member 52 is mounted on the outer peripheral portion of the second incore 57 so as to be movable in the vertical direction.
- the stripper plate 60 to which the cylindrical release member 52 is fixed is connected to the in-core fixing block 53 to which the core die 51 is fixed via the biasing member 61. Therefore, by lowering the pressing member 62 (see FIG. 5), the cylindrical release member 52 is lowered together with the stripper plate 60, and the hollow molded product 1 is pressed. As a result, the hollow molded product 1 can be easily released from the core mold 51, and the hollow molded product 1 can be easily recovered. *
- the preform can be well held and transported even when a hollow molded product having no neck portion is formed. Therefore, the cost can be reduced, and the hollow molded product can be manufactured at a relatively low cost.
- the bulb cover is exemplified as the hollow molded product, but the present invention can be applied not only to the production of the bulb cover but also to the production of any hollow molded product.
- polycarbonate was illustrated as a resin material of a hollow molded article, you may use resin materials, such as a polypropylene and polyethylene, in addition to that, for example.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
Description
20 射出装置
30 射出成形部
31 ホットランナー型
32 機台
33 射出キャビティー型
34 筒状分割型
35 付勢部材
40 ブロー成形部
41 ブローキャビティー型
42 底型
42a 底型固定板
42b 被ガイド面
43 ブローキャビティー固定板
44 型締め板
45 機台
46 昇降シリンダ
47 ガイド軸
50 金型ユニット
51 コア型
52 筒状離型部材
53 インコア固定ブロック
54 断熱板
55 回転板固定部材
56 第1のインコア
57 第2のインコア
58 エア流路
59 エア導出口
60 ストリッパプレート
61 付勢部材
62 押圧部材
66 導入路
67 排出路
70 搬送手段
71 回転板
80 ブロー金型ユニット
90 支持部材
91 ローラ(ガイド部材)
Claims (10)
- 射出キャビティー型と該射出キャビティー型内に上方から挿入されたコア型との間の空間に原材料を導入してプリフォームを形成する射出成形部と、
前記プリフォームをブロー型内でブロー成形して所定形状の中空成形品とするブロー成形部と、
前記プリフォームを前記コア型に保持して前記射出成形部から前記ブロー成形部に搬送する搬送手段と、を備え、
前記搬送手段は、前記プリフォームを射出成形後に冷却し、この冷却に伴う収縮力によって前記プリフォームを前記コア型に保持して搬送することを特徴とする射出ブロー成形装置。 - 請求項1に記載の射出ブロー成形装置において、
前記射出キャビティー型の上部には、前記プリフォームの開口縁部の外周面を規定すると共に、前記射出キャビティー型とは上下方向で分離可能な筒状分割型が設けられていることを特徴とする射出ブロー成形装置。 - 請求項1又は2に記載の射出ブロー成形装置において、
前記コア型の外周部には、前記プリフォームの開口面を規定する筒状離型部材が上下方向に移動可能に設けられていることを特徴とする射出ブロー成形装置。 - 射出キャビティー型と該射出キャビティー型内に上方から挿入されたコア型との間の空間に原材料を導入してプリフォームを形成する射出成形部と、前記プリフォームをブロー型内でブロー成形して所定形状の中空成形品とするブロー成形部と、前記プリフォームを射出成形後に冷却し、この冷却に伴う収縮力によって前記プリフォームを前記コア型に保持して搬送する搬送手段と、を備える射出ブロー成形装置に用いられる金型ユニットであって、
前記コア型と、
当該コア型の外周部に上下方向に移動可能に設けられ、前記プリフォームの開口面を規定する筒状離型部材と、を備えていることを特徴とする金型ユニット。 - 請求項4に記載の金型ユニットにおいて、
前記コア型と前記筒状離型部材とが付勢部材を介して連結されていると共に、
前記筒状離型部材を下方に向かって押圧可能な押圧手段を備えていることを特徴とする金型ユニット。 - 射出キャビティー型と該射出キャビティー型内に上方から挿入されたコア型との間の空間に原材料を導入してプリフォームを形成する射出成形部と、前記プリフォームをブロー型内でブロー成形して所定形状の中空成形品とするブロー成形部と、前記プリフォームを射出成形後に冷却し、この冷却に伴う収縮力によって前記プリフォームを前記コア型に保持して搬送する搬送手段と、を備える射出ブロー成形装置に用いられる金型ユニットであって、
前記ブロー型として、
前記中空成形品の肩部を形成するブローキャビティー型と、
前記中空成形品の底部を形成する一体型の底型と、
を備えることを特徴とする金型ユニット。 - 請求項6に記載の金型ユニットにおいて、
前記ブロー型の型閉じ時に前記底型の下側に挿入され、前記底型の底面側に当接して当該底型を上昇させると共に支持する支持部材を備えることを特徴とする金型ユニット。 - 請求項7に記載の金型ユニットにおいて、
前記支持部材が、前記底型の底面側に当接して当該底型を案内するガイド部材を備えていることを特徴とする金型ユニット。 - 請求項8に記載の金型ユニットにおいて、
前記底型の底面側に傾斜状の被ガイド面が設けられ、
前記ブロー型の型閉じ時に前記底型の下側に前記支持部材が挿入されると、前記ガイド部材が前記被ガイド面を摺動することで前記底型が上昇することを特徴とする金型ユニット。 - 射出キャビティー型と該射出キャビティー型内に上方から挿入されたコア型との間の空間に原材料を導入してプリフォームを形成する射出成形工程と、
前記プリフォームをブロー型内でブロー成形して所定形状の中空成形品とするブロー成形工程と、
前記プリフォームを前記コア型に保持して前記射出成形部から前記ブロー成形部に搬送する搬送工程と、
を備え、
前記搬送工程では、前記プリフォームを射出成形後に冷却し、冷却に伴う収縮力によって前記プリフォームを前記コア型に保持して搬送することを特徴とする射出ブロー成形方法。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201280052394.4A CN103889683B (zh) | 2011-10-24 | 2012-10-24 | 注射吹塑成型装置及其所使用的金属模具单元、以及注射吹塑成型方法 |
KR1020147012565A KR101915303B1 (ko) | 2011-10-24 | 2012-10-24 | 사출 블로우 성형 장치 및 그것에 사용되는 금형 유닛 및 사출 블로우 성형 방법 |
JP2013540811A JP6085815B2 (ja) | 2011-10-24 | 2012-10-24 | 射出ブロー成形装置及びそれに用いられる金型ユニット |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2011233416 | 2011-10-24 | ||
JP2011-233416 | 2011-10-24 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2013062014A1 true WO2013062014A1 (ja) | 2013-05-02 |
Family
ID=48167841
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2012/077510 WO2013062014A1 (ja) | 2011-10-24 | 2012-10-24 | 射出ブロー成形装置及びそれに用いられる金型ユニット並びに射出ブロー成形方法 |
Country Status (4)
Country | Link |
---|---|
JP (1) | JP6085815B2 (ja) |
KR (1) | KR101915303B1 (ja) |
CN (1) | CN103889683B (ja) |
WO (1) | WO2013062014A1 (ja) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106273359A (zh) * | 2016-09-23 | 2017-01-04 | 厦门普拉米达光电科技有限公司 | 一种led塑料拉尾泡壳制作工艺及设备 |
CN116395940A (zh) * | 2023-03-17 | 2023-07-07 | 江苏新奥得玻璃制品股份有限公司 | 一种玻璃酒瓶吹制设备及其吹制方法 |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP6555915B2 (ja) * | 2015-03-31 | 2019-08-07 | 株式会社吉野工業所 | 液体ブロー成形装置 |
KR20240120758A (ko) * | 2017-10-19 | 2024-08-07 | 닛세이 에이. 에스. 비 기카이 가부시키가이샤 | 수지제 용기의 제조방법, 금형 유닛 및 성형기 |
US11850788B2 (en) * | 2019-01-31 | 2023-12-26 | Nissei Asb Machine Co., Ltd. | Device and method for producing resin container |
JP6777960B1 (ja) * | 2020-06-18 | 2020-10-28 | 株式会社青木固研究所 | 射出成形型とプリフォーム成形方法、及び中空体の製造方法 |
Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4921424B1 (ja) * | 1970-12-30 | 1974-05-31 | ||
JPS53134063A (en) * | 1977-04-28 | 1978-11-22 | Nissei Plastics Ind Co | Injection molding method and apparatus under suction |
JPS5698424U (ja) * | 1979-12-28 | 1981-08-04 | ||
JPS5879325U (ja) * | 1981-11-26 | 1983-05-28 | 住友重機械工業株式会社 | 有底パリソン温調炉 |
JPS5892538A (ja) * | 1981-11-30 | 1983-06-01 | Hitachi Lighting Ltd | インジエクシヨンブロ−成形装置 |
JPS6280019A (ja) * | 1985-10-04 | 1987-04-13 | Sumitomo Heavy Ind Ltd | 射出吹込成形機 |
JPH0418325A (ja) * | 1990-05-11 | 1992-01-22 | Nissei Asb Mach Co Ltd | ブロー成形用の成形型 |
JP2001179814A (ja) * | 1994-09-16 | 2001-07-03 | Nissei Asb Mach Co Ltd | ブロー成形装置 |
JP2004299350A (ja) * | 2003-04-01 | 2004-10-28 | Nissei Asb Mach Co Ltd | ネック部結晶化装置及びネック部結晶化方法 |
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 |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3970419A (en) * | 1974-05-28 | 1976-07-20 | Valyi Emery I | Apparatus for controlled processing of blown plastic articles |
JPS57165224A (en) * | 1981-04-03 | 1982-10-12 | Sumitomo Heavy Ind Ltd | Injection blow forming method of cup like vessel |
CN1026302C (zh) * | 1990-05-18 | 1994-10-26 | 日精工Isb机械株式会社 | 吹塑模 |
US5635226A (en) * | 1994-09-26 | 1997-06-03 | A.K. Technical Laboratory Inc. | Composite molding device for stretch blow molding |
US6929462B1 (en) * | 2000-11-08 | 2005-08-16 | Hammonton Mold Co. Inc. | Mold part guide mechanism |
US7279724B2 (en) * | 2004-02-25 | 2007-10-09 | Philips Lumileds Lighting Company, Llc | Ceramic substrate for a light emitting diode where the substrate incorporates ESD protection |
JP4714509B2 (ja) * | 2005-06-13 | 2011-06-29 | 株式会社青木固研究所 | 射出延伸ブロー成形方法 |
-
2012
- 2012-10-24 KR KR1020147012565A patent/KR101915303B1/ko active IP Right Grant
- 2012-10-24 WO PCT/JP2012/077510 patent/WO2013062014A1/ja active Application Filing
- 2012-10-24 JP JP2013540811A patent/JP6085815B2/ja active Active
- 2012-10-24 CN CN201280052394.4A patent/CN103889683B/zh active Active
Patent Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4921424B1 (ja) * | 1970-12-30 | 1974-05-31 | ||
JPS53134063A (en) * | 1977-04-28 | 1978-11-22 | Nissei Plastics Ind Co | Injection molding method and apparatus under suction |
JPS5698424U (ja) * | 1979-12-28 | 1981-08-04 | ||
JPS5879325U (ja) * | 1981-11-26 | 1983-05-28 | 住友重機械工業株式会社 | 有底パリソン温調炉 |
JPS5892538A (ja) * | 1981-11-30 | 1983-06-01 | Hitachi Lighting Ltd | インジエクシヨンブロ−成形装置 |
JPS6280019A (ja) * | 1985-10-04 | 1987-04-13 | Sumitomo Heavy Ind Ltd | 射出吹込成形機 |
JPH0418325A (ja) * | 1990-05-11 | 1992-01-22 | Nissei Asb Mach Co Ltd | ブロー成形用の成形型 |
JP2001179814A (ja) * | 1994-09-16 | 2001-07-03 | Nissei Asb Mach Co Ltd | ブロー成形装置 |
JP2004299350A (ja) * | 2003-04-01 | 2004-10-28 | Nissei Asb Mach Co Ltd | ネック部結晶化装置及びネック部結晶化方法 |
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 |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106273359A (zh) * | 2016-09-23 | 2017-01-04 | 厦门普拉米达光电科技有限公司 | 一种led塑料拉尾泡壳制作工艺及设备 |
CN116395940A (zh) * | 2023-03-17 | 2023-07-07 | 江苏新奥得玻璃制品股份有限公司 | 一种玻璃酒瓶吹制设备及其吹制方法 |
CN116395940B (zh) * | 2023-03-17 | 2024-02-13 | 江苏新奥得玻璃制品股份有限公司 | 一种玻璃酒瓶吹制设备及其吹制方法 |
Also Published As
Publication number | Publication date |
---|---|
KR20140084160A (ko) | 2014-07-04 |
KR101915303B1 (ko) | 2018-11-06 |
JPWO2013062014A1 (ja) | 2015-04-02 |
JP6085815B2 (ja) | 2017-03-01 |
CN103889683A (zh) | 2014-06-25 |
CN103889683B (zh) | 2020-11-06 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP6085815B2 (ja) | 射出ブロー成形装置及びそれに用いられる金型ユニット | |
US11731337B2 (en) | Blow molding device and blow molding method | |
US8858216B2 (en) | Plant for production of plastic containers | |
JP5798444B2 (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 | |
US11472091B2 (en) | Two step blow molding unit, apparatus and method | |
KR101530006B1 (ko) | 블로우 성형기 | |
KR101543389B1 (ko) | 블로우형 유닛 및 그것을 이용한 블로우 성형기 | |
EP3369551B1 (en) | Mould, blow moulding apparatus, and blow moulding method | |
KR102278386B1 (ko) | 사출 성형 유닛 및 이를 구비하는 블로우 성형 장치 | |
US9296147B2 (en) | Method for cooling a mould by circulating a heat-transfer fluid in contact with the external face thereof | |
WO2014098194A1 (ja) | 搬送装置、成形品製造装置及び成形品の製造方法 | |
JP4791182B2 (ja) | インジェクションブロー成形機 | |
CN107000262B (zh) | 用于在预制件上制造优化的颈部轮廓的方法和装置 | |
JP2017140742A (ja) | ブロー成形装置 | |
JP5750426B2 (ja) | 二軸延伸ブロー成形方法および射出・二軸延伸ブロー成形システム | |
JPWO2019050021A1 (ja) | ブロー成形装置及びブロー成形方法 | |
WO2023282292A1 (ja) | 樹脂製容器の製造方法および温度調整装置 | |
JP2009234884A (ja) | 成形装置及び方法 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 12844218 Country of ref document: EP Kind code of ref document: A1 |
|
DPE1 | Request for preliminary examination filed after expiration of 19th month from priority date (pct application filed from 20040101) | ||
ENP | Entry into the national phase |
Ref document number: 2013540811 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: 20147012565 Country of ref document: KR Kind code of ref document: A |
|
122 | Ep: pct application non-entry in european phase |
Ref document number: 12844218 Country of ref document: EP Kind code of ref document: A1 |