JP2009051570A - Container, die and manufacturing method - Google Patents
Container, die and manufacturing method Download PDFInfo
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- JP2009051570A JP2009051570A JP2008151919A JP2008151919A JP2009051570A JP 2009051570 A JP2009051570 A JP 2009051570A JP 2008151919 A JP2008151919 A JP 2008151919A JP 2008151919 A JP2008151919 A JP 2008151919A JP 2009051570 A JP2009051570 A JP 2009051570A
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- container
- neck
- mold
- male screw
- male
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/42—Component parts, details or accessories; Auxiliary operations
- B29C49/48—Moulds
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- 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
- 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
- B29B11/14—Making preforms characterised by structure or composition
-
- 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
- B29C2049/4892—Mould halves consisting of an independent main and bottom part
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2949/00—Indexing scheme relating to blow-moulding
- B29C2949/07—Preforms or parisons characterised by their configuration
- B29C2949/0715—Preforms or parisons characterised by their configuration the preform having one end closed
-
- 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
- B29C2949/0768—Preforms or parisons characterised by their configuration characterised by the shape characterised by the shape of specific parts of preform
- B29C2949/077—Preforms or parisons characterised by their configuration characterised by the shape characterised by the shape of specific parts of preform characterised by the neck
- B29C2949/0772—Closure retaining means
- B29C2949/0773—Threads
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2949/00—Indexing scheme relating to blow-moulding
- B29C2949/07—Preforms or parisons characterised by their configuration
- B29C2949/076—Preforms or parisons characterised by their configuration characterised by the shape
- B29C2949/0768—Preforms or parisons characterised by their configuration characterised by the shape characterised by the shape of specific parts of preform
- B29C2949/077—Preforms or parisons characterised by their configuration characterised by the shape characterised by the shape of specific parts of preform characterised by the neck
- B29C2949/0777—Tamper-evident band retaining ring
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2949/00—Indexing scheme relating to blow-moulding
- B29C2949/07—Preforms or parisons characterised by their configuration
- B29C2949/076—Preforms or parisons characterised by their configuration characterised by the shape
- B29C2949/0768—Preforms or parisons characterised by their configuration characterised by the shape characterised by the shape of specific parts of preform
- B29C2949/0778—Preforms or parisons characterised by their configuration characterised by the shape characterised by the shape of specific parts of preform characterised by the flange
-
- 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
- B29C2949/079—Auxiliary parts or inserts
- B29C2949/0795—Parts to assist orientation of preform, e.g. in mould
- B29C2949/0797—Parts to assist orientation of preform, e.g. in mould at flange portion
-
- 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
- B29C2949/20—Preforms or parisons whereby a specific part is made of only one component, e.g. only one layer
- B29C2949/22—Preforms or parisons whereby a specific part is made of only one component, e.g. only one layer at neck portion
-
- 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
- B29C2949/20—Preforms or parisons whereby a specific part is made of only one component, e.g. only one layer
- B29C2949/24—Preforms or parisons whereby a specific part is made of only one component, e.g. only one layer at flange portion
-
- 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
- B29C2949/20—Preforms or parisons whereby a specific part is made of only one component, e.g. only one layer
- B29C2949/26—Preforms or parisons whereby a specific part is made of only one component, e.g. only one layer at body portion
-
- 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
- B29C2949/20—Preforms or parisons whereby a specific part is made of only one component, e.g. only one layer
- B29C2949/28—Preforms or parisons whereby a specific part is made of only one component, e.g. only one layer at bottom portion
-
- 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
- B29C2949/30—Preforms or parisons made of several components
- B29C2949/3024—Preforms or parisons made of several components characterised by the number of components or by the manufacturing technique
-
- 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
- B29C2949/30—Preforms or parisons made of several components
- B29C2949/3032—Preforms or parisons made of several components having components being injected
-
- 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
- B29C49/071—Preforms or parisons characterised by their configuration, e.g. geometry, dimensions or physical properties
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
- B29K2105/25—Solid
- B29K2105/253—Preform
- B29K2105/258—Tubular
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Stackable Containers (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
Abstract
Description
本発明は、複数の容器を連結する技術に関する。 The present invention relates to a technique for connecting a plurality of containers.
本出願人は、複数容器の頸部と底部とを連結するとともに、連結された容器(以下、連結容器という)の側壁に凹部と凸部とを設け、連結容器同士をさらに、側壁方向に組み合わせて、構造物を組み上げる技術を提案している(下記特許文献1参照)。
図1に、連結容器同士をさらに、側壁方向に組み合わせる例を示す。この容器の頸部134の外壁には、ねじ突条とねじ溝を含む雄ねじ部が形成されている。また、この容器の底部には、頸部134の雄ねじ部をねじ入れ可能な底面蓋110が埋め込まれている。したがって、一の容器の頸部134を他の容器の底面部にねじ入れ固定することで複数容器を縦方向、すなわち、底部と頸部134とを連結する方向に接続可能となっている。
この容器側面には、上部から底面に近い下部にかけて凸部115,115,115が形成されている。なお、図1に示す容器の背面側には、凸部115,115,115と対になる凹部が形成されている。この凸部115(および背面の凹部)は、他の容器の凹部(および凸部)にはめ込まれ、側面での各容器間のずれを抑制する。さらに、この容器の頸部134には、容器の中心軸に垂直な断面の形状が多角形状の多角形部104が設けられている。この多角形部104を挿入可能な開口を有する板状材料(固定安定板と呼ぶ)によって、複数容器間を横方向に固定する場合もある。
The present applicant connects the neck portion and the bottom portion of a plurality of containers, and provides recesses and protrusions on the side walls of the connected containers (hereinafter referred to as connection containers), and further combines the connection containers in the side wall direction. Thus, a technique for assembling a structure has been proposed (see Patent Document 1 below).
In FIG. 1, the example which combines connection containers further in a side wall direction is shown. On the outer wall of the neck portion 134 of the container, a male screw portion including a screw protrusion and a screw groove is formed. Also, a bottom lid 110 into which the male threaded portion of the neck 134 can be screwed is embedded in the bottom of the container. Therefore, a plurality of containers can be connected in the vertical direction, that is, the direction in which the bottom part and the neck part 134 are coupled by screwing and fixing the neck part 134 of one container to the bottom part of another container.
Protrusions 115, 115, 115 are formed on the side surface of the container from the top to the bottom near the bottom. In addition, the recessed part which makes a pair with the convex parts 115,115,115 is formed in the back side of the container shown in FIG. The convex portion 115 (and the concave portion on the back surface) is fitted into the concave portion (and the convex portion) of another container, and suppresses the deviation between the containers on the side surface. Furthermore, the neck part 134 of the container is provided with a polygonal part 104 having a polygonal cross section perpendicular to the central axis of the container. In some cases, a plurality of containers are fixed in the lateral direction by a plate-like material having an opening into which the polygonal portion 104 can be inserted (referred to as a fixed stabilizing plate).
しかしながら、底面蓋110は、容器のブロー成形工程において、底部金型に載置され、容器のブロー成形によって容器に埋め込み製造していた。その場合、頸部134に設けた雄ねじ部と、底部蓋110との回転軸周りの相対的な回転角を一意に固定するのが困難であるという問題があった。ここで、回転軸は、容器の長手方向の中心軸に相当する。
例えば、この相対的な回転角を制御してブロー成形できなければ、複数容器を縦方向に連結した場合に、すべての容器側面の凸部115と(および背面の凹部)とを正確に同一方向を向けることが困難になる。したがって、連結容器の側壁方向での凸部115(および背面の凹部)の位置合わせが困難になるという問題があった。この問題は、多角形部104の上記容器の中心軸周りでの角度位置の制御においても、同様に発生する。
However, the bottom lid 110 is placed on the bottom mold in the container blow molding process, and is embedded in the container by blow molding of the container. In that case, there is a problem that it is difficult to uniquely fix the relative rotation angle around the rotation axis between the male screw portion provided on the neck portion 134 and the bottom lid 110. Here, the rotation axis corresponds to the central axis in the longitudinal direction of the container.
For example, if this relative rotation angle is not controlled and blow molding cannot be performed, when a plurality of containers are connected in the vertical direction, all the convex portions 115 on the side surfaces of the containers (and the concave portions on the back surface) are exactly in the same direction It becomes difficult to turn. Therefore, there is a problem that it is difficult to align the convex portions 115 (and the concave portions on the back surface) in the side wall direction of the connection container. This problem also occurs in the control of the angular position of the polygonal portion 104 around the central axis of the container.
そこで、本発明の目的は、複数容器を縦方向に連結するともに、側面方向の凹部と凸部とをはめ込むそれぞれの容器を成形する場合に、接続されたそれぞれの容器頸部の雄ねじ部と、底部に設けた雌ねじ部との相対角度の変動を抑制する技術を提供することにある。 Therefore, an object of the present invention is to connect a plurality of containers in the vertical direction, and when forming each container to be fitted with a concave portion and a convex portion in the side surface direction, a male screw portion of each connected container neck, An object of the present invention is to provide a technique for suppressing a change in relative angle with the female screw portion provided at the bottom.
本発明は前記課題を解決するために、以下の手段を採用した。すなわち、本発明の一態
様は、他の容器と連結可能に構成される容器として例示できる。この態様の容器は、底部、その底部に立設された筒状の側壁、およびその筒状の側壁を先端部で絞り外面に雄ねじ部を設けた頸部を有し内容物を収容する収容部と、底部に埋め込まれ、雄ねじ部に適合する雌ねじ部を有し、雄ねじ部の構成を含む他の容器の頸部をねじ入れ可能な受容部と、を備えるようにすればよい。
The present invention employs the following means in order to solve the above problems. That is, one embodiment of the present invention can be exemplified as a container configured to be connectable to another container. The container of this aspect has a bottom portion, a cylindrical side wall erected on the bottom portion, and a neck portion that has a neck portion provided with a male screw portion on the outer surface of the throttle at the distal end portion of the cylindrical side wall and accommodates contents And a receiving portion that is embedded in the bottom portion and has a female screw portion that matches the male screw portion, and that can be screwed into the neck of another container including the configuration of the male screw portion.
そして、頸部の雄ねじ部下端から底部方向の位置には、円周形状の一部を欠いた適合溝付きつば部がさらに設けられ、受容部は、頸部がねじ入れされる開口側と反対の端部の少なくとも一部を塞ぐ天井部を有し、天井部の少なくとも、上記頸部がねじ入れされる内面側には段差が形成され、その段差に適合する段差を有する支持台に載置されたときに雌ねじ部中心軸周りの回転を阻害するようにすればよい。このような構成により、容器の中心軸周りの適合溝の角度位置、すなわち、中心軸周りでの頸部の雄ねじ部の回転角度位置と、受容部の雌ねじ部の回転角度位置とが所定の相対角度となるように規制される。 Further, at the position in the bottom direction from the lower end of the male threaded portion of the neck, a fitting grooved portion lacking a part of the circumferential shape is further provided, and the receiving portion is opposite to the opening side into which the neck is screwed. A ceiling portion that covers at least a part of the end portion, and a step is formed on the inner surface side of the ceiling portion into which the neck portion is screwed, and is placed on a support base having a step that matches the step. When this is done, rotation around the central axis of the female screw portion may be inhibited. With such a configuration, the angular position of the fitting groove around the central axis of the container, i.e., the rotational angular position of the male threaded portion of the neck around the central axis and the rotational angular position of the female threaded portion of the receiving portion are predetermined relative to each other. It is regulated to be an angle.
そして、受容部は、底部の材料と接触する外周面から外周方向に突き出す突出部を有するようにすればよい。通常、受容部は、容器の成型時に、容器の底部に埋め込まれる。受容部に、上記突出部が設けられているので、受容部が容器から脱落しにくくなる。
また、突出部は、外周面の周りに円盤部分を形成し、雌ねじ部中心軸を含む断面において、円盤部分が受容部の埋め込みの深さ方向と逆方向に傾斜した傘状をなすようにしてもよい。ここで、埋め込みの深さ方向は、他の容器がねじ入れされるねじ入れ方向でもある。このような構成とすることで、受容部の脱落の可能性をさらに低減できる。
And a receiving part should just be made to have a protrusion part which protrudes in the outer peripheral direction from the outer peripheral surface which contacts the material of a bottom part. Usually, the receiving part is embedded in the bottom of the container when the container is molded. Since the receiving portion is provided with the protruding portion, the receiving portion is unlikely to fall out of the container.
Further, the projecting part forms a disk part around the outer peripheral surface, and in a cross section including the central axis of the female thread part, the disk part forms an umbrella shape inclined in the direction opposite to the embedding depth direction of the receiving part. Also good. Here, the depth direction of embedding is also a screwing direction in which another container is screwed. By setting it as such a structure, the possibility of dropping of a receiving part can further be reduced.
また、本発明は、他の容器と連結可能に構成される容器を製造するための金型であって、容器を成形するときに容器側面が当接される内壁側面を構成する一対の側部金型と、成形するときに容器の底部が当接される内壁底面を構成する底面金型とを備えるようにしてもよい。そして、一対の側部金型は、容器の頸部に設けられるつば部の円周形状の一部を欠いた適合溝に適合可能な突起を有し、底面金型は、容器の底部に埋め込まれる、容器の頸部に設けた雄ねじ部と同等の雄ねじ部を有する他の容器の頸部をねじ入れ可能な受容部を載置する支持台を有するようにすればよい。そして、受容部は、頸部がねじ入れされる開口側と反対の端部の少なくとも一部を塞ぐ天井部を有し、天井部の少なくとも、頸部がねじ入れされる内面側には段差が形成され、支持台には、受容部を載置したときに段差に適合する段差が形成され、雌ねじ部中心軸に対する、受容部の回転を阻害するようにすればよい。 In addition, the present invention is a mold for manufacturing a container configured to be connectable to another container, and a pair of side portions constituting an inner wall side surface against which the container side surface abuts when the container is molded You may make it provide a metal mold | die and the bottom face metal mold | die which comprises the inner wall bottom face with which the bottom part of a container is contact | abutted when shape | molding. The pair of side molds have protrusions that can be fitted to the fitting grooves lacking a part of the circumferential shape of the collar portion provided on the neck of the container, and the bottom mold is embedded in the bottom of the container What is necessary is just to make it have the support stand which mounts the receiving part which can screw in the neck part of the other container which has the external thread part equivalent to the external thread part provided in the neck part of the container. The receiving portion has a ceiling portion that covers at least a part of the end opposite to the opening side into which the neck portion is screwed, and there is a step on at least an inner surface side of the ceiling portion into which the neck portion is screwed. The formed support is provided with a step that matches the step when the receiving portion is placed, and the rotation of the receiving portion relative to the central axis of the female screw portion may be inhibited.
また、本発明は、金型を用いて、他の容器と連結可能に構成される容器を製造する製造方法であってもよい。ここで、容器は、底部、その底部に立設された筒状の側壁、およびその筒状の側壁を先端部で絞り外面に雄ねじ部を設けた頸部を有し内容物を収容する収容部と、底部に埋め込まれ、雄ねじ部に適合する雌ねじ部を有し、雄ねじ部の構成を含む他の容器の頸部をねじ入れ可能な受容部と、を備えるようにする。また、受容部は、前記頸部がねじ入れされる開口側と反対の端部の少なくとも一部を塞ぐ天井部を有し、前記天井部の少なくとも、前記頸部がねじ入れされる内面側には段差が形成されるようにする。 Further, the present invention may be a manufacturing method for manufacturing a container configured to be connectable to another container using a mold. Here, the container has a bottom portion, a cylindrical side wall erected on the bottom portion, and a neck portion provided with a male thread portion on the outer surface of the throttle at the distal end portion of the cylindrical side wall, and a storage portion for storing contents And a receptacle that is embedded in the bottom and has a female thread that conforms to the male thread and that can be threaded into the neck of another container including the male thread configuration. Further, the receiving portion has a ceiling portion that closes at least a part of an end opposite to the opening side into which the neck portion is screwed, and at least an inner surface side of the ceiling portion into which the neck portion is screwed. The step is formed.
また、金型は、容器を成形するときに容器側面が当接される内壁側面を構成する一対の側部金型と、成形するときに容器の底部が当接される内壁底面を構成する底面金型とを備えるようにする。そして、一対の側部金型は、容器の頸部に設けられたつば部の円周形状の一部を欠いた適合溝に適合可能な突起を有するようにする。そして、底面金型は、容器の底部に埋め込まれる、容器の頸部に設けた雄ねじ部と同等の雄ねじ部を有する他の容器の頸部をねじ入れ可能な受容部を載置する支持台を有し、支持台には、受容部を載置したときに段差に適合する段差が形成するようにする。 In addition, the mold includes a pair of side molds that constitute the inner wall side surface against which the container side surface abuts when molding the container, and a bottom surface that constitutes the inner wall bottom surface against which the bottom part of the container abuts when molding. Provide with a mold. And a pair of side part metal mold | die is made to have the processus | protrusion adaptable to the fitting groove | channel which lacked a part of circumferential shape of the collar part provided in the neck part of the container. Then, the bottom mold is provided with a support base on which a receiving portion that can be screwed into the neck portion of another container having a male screw portion equivalent to the male screw portion provided in the neck portion of the container is embedded in the bottom portion of the container. And a step that conforms to the step when the receiving portion is placed is formed on the support base.
そして、本製造方法は、外面に雄ねじ部を設けた頸部を有し、頸部の雄ねじ部下端から底部方向の位置には、円周形状の一部を欠いた適合溝付きつば部を有するプリフォーム材料を成形する工程と、成形されたプリフォーム材料を一対の側部金型の内面空間に位置付けるとともに、突起を適合溝に適合させる工程と、底面金型の段差に受容部の段差を合わせて載置する工程と、受容部を載置した底面金型によって一対の側壁金型の底面を閉塞する工程と、形成される容器中心軸に対して、受容部と適合溝との回転角を規制した状態で、プリフォーム材料に気体を吹き込み、プリフォーム材料を容器の形状に成形する工程と、を含むようにすればよい。このような工程により、適合溝に側部金型の突起をはめ込むことにより、プリフォームの中心軸周りの回転を規制する。一方、底面金型の支持台の段差によって、受容部の中心軸周りの回転を規制する。したがって、側部金型と、底部金型のプリフォーム中心軸周りの相対的な回転角度を制御することで、頸部の雄ねじ部と、受容部の雌ねじ部との間で、相対的な角度を所定角度に制御できる。 And this manufacturing method has the neck part which provided the external thread part in the outer surface, and has the collar part with a suitable groove lacking a part of the circumference shape in the position of the bottom part direction from the lower end of the external thread part of the neck part. A step of molding the preform material, a step of positioning the molded preform material in the inner surface space of the pair of side molds, a step of fitting the protrusions into the fitting grooves, and a step of the receiving part on the step of the bottom mold A step of placing them together, a step of closing the bottom surfaces of the pair of side wall molds by a bottom surface mold on which the receiving portion is mounted, and a rotation angle between the receiving portion and the fitting groove with respect to the formed container central axis. In a state where the pressure is regulated, a process of blowing a gas into the preform material and forming the preform material into a container shape may be included. By such a process, the rotation of the preform around the central axis is restricted by fitting the protrusion of the side mold into the fitting groove. On the other hand, the rotation around the central axis of the receiving portion is restricted by the step of the support base of the bottom mold. Therefore, by controlling the relative rotation angle around the preform center axis of the side mold and the bottom mold, the relative angle between the male threaded portion of the neck and the female threaded portion of the receiving part Can be controlled to a predetermined angle.
なお、本発明は、上記受容部を容器の成型時に一体成型するようにようにしてもよい。すなわち、本発明は、他の容器と連結可能に構成される容器であって、底部、その底部に立設された筒状の側壁、およびその筒状の側壁を先端部で絞り外面に雄ねじ部を設けた頸部を有し内容物を収容する収容部と、底部に埋め込まれ、雄ねじ部に適合する雌ねじ部を有し、雄ねじ部の構成を含む他の容器の頸部をねじ入れ可能な受容部と、を備え、頸部の雄ねじ部下端から底部方向の位置には、円周形状の一部を欠いた適合溝付きつば部がさらに設けられ、受容部は、略円筒形をなし、底部の材料によって前記容器に一体成形されているものでもよい。 In the present invention, the receiving portion may be integrally molded when the container is molded. That is, the present invention is a container configured to be connectable to another container, and includes a bottom part, a cylindrical side wall erected on the bottom part, and a male screw part on the outer surface of the throttle at the tip part of the cylindrical side wall. A container having a neck portion for containing contents, a female screw portion embedded in the bottom portion and adapted to the male screw portion, and capable of screwing the neck portion of other containers including the male screw portion configuration And a fitting grooved rib lacking a part of the circumferential shape is further provided at a position in the bottom direction from the lower end of the male threaded portion of the neck, and the receiving portion has a substantially cylindrical shape, It may be integrally formed with the container by the material of the bottom.
本発明によれば、複数容器を縦方向に連結するともに、側面方向の凹部と凸部とをはめ込むそれぞれの容器を成形する場合に、接続されたそれぞれの容器頸部の雄ねじ部と、底部に設けた雌ねじ部との相対角度の変動を抑制することができる。 According to the present invention, when connecting a plurality of containers in the vertical direction and molding each container to be fitted with a concave portion and a convex portion in the side direction, the male thread portion of each connected container neck and the bottom portion The fluctuation | variation of the relative angle with the provided internal thread part can be suppressed.
以下、図面を参照して本発明を実施するための最良の形態(以下、実施形態という)に係る容器、その容器の製造に用いるブロー成形金型、およびそのブロー成形金型を用いた容器の製造法について説明する。以下の実施形態の構成は例示であり、本発明は実施形態の構成には限定されない。 BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, a container according to a best mode (hereinafter referred to as an embodiment) for carrying out the present invention with reference to the drawings, a blow mold used for manufacturing the container, and a container using the blow mold A manufacturing method will be described. The configuration of the following embodiment is an exemplification, and the present invention is not limited to the configuration of the embodiment.
<容器の概要>
図2に、本実施形態に係る容器1の正面図を示す。この正面図は、容器表面の一部を破断線L20にて破断した断面を含む。図2のように、容器1は、底部37と、底部から立ち上がる側壁36と、側壁36の上部にて容器の天井を形成する上壁部35と、上壁部35から立ち上がる頸部34とを有する。
頸部34は、円筒形であり、その外面には、雄ねじ部3が形成されている。雄ねじ部3は、ねじ状凸部3Aとねじ状溝部3Bとを含む。さらに、雄ねじ部3に隣接してストッパ3Cが設けられている。ストッパ3Cは、頸部34に蓋がねじ着されたとき、蓋の下端に接触し、内容物の漏れだしを抑制する。
<Outline of container>
In FIG. 2, the front view of the container 1 which concerns on this embodiment is shown. This front view includes a cross section in which a part of the surface of the container is broken at a breaking line L20. As shown in FIG. 2, the container 1 includes a bottom portion 37, a side wall 36 that rises from the bottom portion, an upper wall portion 35 that forms a ceiling of the container at the top of the side wall 36, and a neck portion 34 that rises from the upper wall portion 35. Have.
The neck 34 has a cylindrical shape, and an external thread portion 3 is formed on the outer surface thereof. The male screw portion 3 includes a screw-like convex portion 3A and a screw-like groove portion 3B. Further, a stopper 3 </ b> C is provided adjacent to the male screw portion 3. When the lid is screwed onto the neck portion 34, the stopper 3C contacts the lower end of the lid and suppresses leakage of contents.
さらに、頸部34外面上でストッパ3Cの下方には、円形のネックリング5が形成されている。ネックリング5は、その一部を欠いた形状の適合溝6(ノッチともいう)を含む。ネックリング5は、容器1をブロー整形する前の形態であるプリフォームが整形されるときに、プリフォーム金型によって成形される。
さらに、本実施形態では、上壁部35と、頸部34の間に、容器1の中心軸に垂直な断面が多角形状の段差(以下、単に多角形部4という)が設けられている。多角形部4を挿入可能な開口を有する板状材料を用いることにより、複数容器の側面方向への連結が可能
となる。
Further, a circular neck ring 5 is formed on the outer surface of the neck 34 below the stopper 3C. The neck ring 5 includes a fitting groove 6 (also referred to as a notch) having a shape lacking a part thereof. The neck ring 5 is formed by a preform mold when a preform which is a form before the container 1 is blow-shaped is shaped.
Further, in the present embodiment, a step having a polygonal cross section perpendicular to the central axis of the container 1 (hereinafter simply referred to as the polygonal portion 4) is provided between the upper wall portion 35 and the neck portion 34. By using a plate-like material having an opening into which the polygonal portion 4 can be inserted, a plurality of containers can be connected in the lateral direction.
容器1の側壁には、容器1の上壁部35付近から底部37に至る壁状の凸部15,15,15が構成されている。図3に容器1を上方から見た平面図の例を示す。また、図4に、底部37側から見た平面図の例を示す。図3および図4に示すように、凸部15,15,15が形成された側壁の容器中心軸に対して反対側(背面側ともいう)の側壁には、容器の上壁部35付近から底部37に至る溝状の凹部16,16,16が構成されている。複数の容器1は、互いに相手容器との間で、その凸部15と凹部16とを組み合わせことが可能となっている。
容器1の底部37には、底部容器蓋10(本発明の受容部に相当)がはめ込まれている。底部容器蓋10には、雌ねじが形成され、他の容器1の頸部34をねじ入れ可能となっている。
On the side wall of the container 1, wall-shaped convex parts 15, 15, 15 extending from the vicinity of the upper wall part 35 of the container 1 to the bottom part 37 are formed. FIG. 3 shows an example of a plan view of the container 1 as viewed from above. FIG. 4 shows an example of a plan view seen from the bottom 37 side. As shown in FIG. 3 and FIG. 4, the side wall on the side opposite to the container central axis (also referred to as the back side) of the side wall on which the convex portions 15, 15, 15 are formed is located near the upper wall part 35 of the container. Groove-shaped recesses 16, 16, 16 reaching the bottom 37 are formed. Several containers 1 can combine the convex part 15 and the recessed part 16 between each other containers.
A bottom container lid 10 (corresponding to the receiving portion of the present invention) is fitted in the bottom 37 of the container 1. The bottom container lid 10 is formed with a female screw so that the neck 34 of another container 1 can be screwed into the bottom container lid 10.
図5に、容器1をブロー成形するときに使用するプリフォーム20の形状例を示す。このプリフォーム20は、プリフォーム成形工程(例えば、射出成形による)でプリフォーム金型により形成される。図5のように、プリフォーム20の上部には、頸部34が形成されている。頸部34の円筒外壁には、雄ねじ部3、および適合溝6を有するネックリング5が形成されている。プリフォーム金型による射出成形でプリフォーム20の中心軸周りでの適合溝6と、雄ねじ部3との相対的な回転角度は、固定されることになる。 In FIG. 5, the example of a shape of the preform 20 used when blow-molding the container 1 is shown. The preform 20 is formed by a preform mold in a preform molding process (for example, by injection molding). As shown in FIG. 5, a neck portion 34 is formed on the upper portion of the preform 20. A neck ring 5 having a male screw portion 3 and a matching groove 6 is formed on the cylindrical outer wall of the neck portion 34. The relative rotation angle between the fitting groove 6 around the center axis of the preform 20 and the male screw portion 3 is fixed by injection molding using a preform mold.
図6に、底部容器蓋10の断面図を示す。なお、図6には、底部容器蓋10を載置する底部金型の台座部23Bも示されている。底部容器蓋10は、一端(図6の上端)が閉塞され、他端が開口した円筒形状である。円筒形状の側壁の外面には、断面が山形状のリング部24が複数形成されている。図6のように、リング部24は、開口した下端方向に傾いた傘状をしている。すなわち、図6では、リング部24は、底部容器蓋10が容器1の底部に埋め込まれたときの深さ方向と反対方向(下側)に向かって傾いている。 FIG. 6 shows a cross-sectional view of the bottom container lid 10. FIG. 6 also shows a bottom mold base 23B on which the bottom container lid 10 is placed. The bottom container lid 10 has a cylindrical shape with one end (upper end in FIG. 6) closed and the other end opened. A plurality of ring portions 24 having a mountain-like cross section are formed on the outer surface of the cylindrical side wall. As shown in FIG. 6, the ring portion 24 has an umbrella shape inclined toward the opened lower end. That is, in FIG. 6, the ring portion 24 is inclined in the direction opposite to the depth direction (lower side) when the bottom container lid 10 is embedded in the bottom of the container 1.
ここで、傘の表面に相当するリング部24の上側の面と、傘の裏面に相当するリング部24の下側の面とは、同一角度で傾斜する必要はない。ただし、リング部24の下側の面は、底部容器蓋10の中心軸に直交するか、または、その中心軸に対する法平面(中心軸に直交する面)よりも、下側に傾くいた平面または曲面であることが望ましい。リング部24の下側の面が、底部容器蓋10の中心軸に対する法平面より下に傾くことで、底部容器蓋10が、容器1に組み込まれたときにはずれにくくなるからである。 Here, the upper surface of the ring portion 24 corresponding to the surface of the umbrella and the lower surface of the ring portion 24 corresponding to the back surface of the umbrella do not need to be inclined at the same angle. However, the lower surface of the ring portion 24 is orthogonal to the central axis of the bottom container lid 10, or is a plane inclined downward from the normal plane (surface orthogonal to the central axis) with respect to the central axis. A curved surface is desirable. This is because the lower surface of the ring portion 24 is inclined below the normal plane with respect to the central axis of the bottom container lid 10, so that when the bottom container lid 10 is incorporated in the container 1, it is difficult to be displaced.
一方、リング部24の上側の面の傾きに特に制限はないが、上記法平面によりも下に傾いて形成された場合には、円筒形状の底部容器蓋10外面とリング部24の上側の面のなす奥部24Aのなす角度が鈍角となり、あるいはリング部24,24で挟まれた谷部24Bがそと方向に広がることになるので、容器1の底部の材料との接触がより確実になる。
また、円筒形状の側壁の内面には、雌ねじ部11が形成されている。雌ねじ部は、頸部34の雄ねじ部3がねじ入れ可能なねじ突条とねじ溝を含む。
底部容器蓋10の少なくとも一部を閉塞した上端は、天井面40を構成する。天井面40には、一部に段差部分が形成されている。この段差部分は、段差側壁と、底面部とを含む。本実施形態では、この段差部分を沈降部12と呼ぶ。図6に示すように、底部金型23Aの上面は、底部容器蓋10の天井部40と同様に、段差部23Cが形成され、沈降部12をはめ込み可能となっている。なお、天井部40は、底部容器蓋10の上端をすべて閉塞する必要はなく、一部に開口が存在してもよい。
On the other hand, the inclination of the upper surface of the ring portion 24 is not particularly limited. However, when it is formed to be inclined downward with respect to the normal plane, the outer surface of the cylindrical bottom container lid 10 and the upper surface of the ring portion 24 are formed. The angle formed by the inner portion 24A is obtuse, or the valley portion 24B sandwiched between the ring portions 24, 24 spreads in the direction, so that the contact with the material at the bottom of the container 1 is more reliable. .
An internal thread portion 11 is formed on the inner surface of the cylindrical side wall. The female screw portion includes a screw protrusion and a screw groove into which the male screw portion 3 of the neck portion 34 can be screwed.
An upper end that closes at least a part of the bottom container lid 10 constitutes the ceiling surface 40. The ceiling surface 40 is partially formed with a step portion. The step portion includes a step side wall and a bottom surface portion. In the present embodiment, this step portion is referred to as a sedimentation portion 12. As shown in FIG. 6, a step 23 </ b> C is formed on the upper surface of the bottom mold 23 </ b> A in the same manner as the ceiling 40 of the bottom container lid 10, and the settling portion 12 can be fitted. In addition, the ceiling part 40 does not need to block | close all the upper ends of the bottom part container cover 10, and opening may exist in some.
また、図6では、天井部40は、底部容器蓋10の外面(容器1との接触側)と内面(他の容器がねじ入れされる側)の両方が段差となっている。しかし、後述する底部金型の段差部23Bにはめ込むという目的を達成する限り、例えば、外面(容器1との接触側)
に段差を無くしフラットな面としてもよい。
図7に、底部容器蓋10の平面図(図6をA1矢印方向から見た図)の例を示す。図7の例では、沈降部12の平面形状(容器1の中心軸に垂直な断面での形状)は、円周の2点を結ぶ弦によって円を切り取った円弧状をなしている。なお、図示しないが、底部金型23Aの上面の段差部23Cの平面形状も同様の形状であり、図7の沈降部12を適合させて挿入可能である。
Moreover, in FIG. 6, the ceiling part 40 has a level | step difference in both the outer surface (contact side with the container 1) and inner surface (side in which another container is screwed) of the bottom container lid 10. However, as long as the purpose of fitting into the step 23B of the bottom mold described later is achieved, for example, the outer surface (contact side with the container 1)
It is good also as a flat surface by eliminating the step.
In FIG. 7, the example of the top view (The figure which looked at FIG. 6 from the A1 arrow direction) of the bottom container cover 10 is shown. In the example of FIG. 7, the planar shape of the settling portion 12 (the shape in a cross section perpendicular to the central axis of the container 1) is an arc shape obtained by cutting a circle with a string connecting two points on the circumference. Although not shown, the planar shape of the stepped portion 23C on the upper surface of the bottom mold 23A is also similar, and can be inserted with the settling portion 12 of FIG.
<実施形態>
図8に、本実施形態に係るプリフォーム成形金型の例を示す。このプリフォーム成形金型は、プリフォーム20の側壁を外側から形成する側壁部81、側壁が形成する空洞内に挿入され、プリフォーム20の側壁を内側かわ形成するコア部84、側壁部81の上部にて、コア部84を取り囲み、容器1の頸部34を形成する頸部形成部83、コア部84および頸部形成部83を上方から支持する支持する支持部82を有する。
側壁部81は、内部が、プリフォーム20の外面と同様の円筒形状の空洞を有する。また、コア部84は、プリフォーム20の内面と同様の円筒形状であり、側壁部81の空洞部に挿入することによって、プリフォーム20の厚みと同一の空間を形成する。頸部形成部83は、コア部84の上端側を取り囲む円筒形であり、円筒面の内壁83Aには、容器1の頸部34に形成される、雄ねじ部3、ストッパ3C、ネックリング5、およびネックリング5の適合溝6を形成するパターンが形成されている。
支持部82に、コア部84および頸部形成部83を装着し、側壁部81に挿入することで、プリフォーム形成用の空間が形成される。頸部形成部83の下面から空洞に至る部分には、ノズル85を装着可能な孔部が設けられている。したがって、そして、ノズル85から、容器1の材料、例えば、プリエチレン照れ蓋レート等を射出し、空洞内に充填することで、プリフォーム20が形成される。
<Embodiment>
FIG. 8 shows an example of a preform mold according to the present embodiment. The preform molding die includes a side wall portion 81 that forms the side wall of the preform 20 from the outside, a core portion 84 that is inserted into a cavity formed by the side wall and forms a side wall of the preform 20, and a side wall portion 81. In the upper part, it has a neck part forming part 83 that surrounds the core part 84 and forms the neck part 34 of the container 1, and a support part 82 that supports the core part 84 and the neck part forming part 83 from above.
The side wall portion 81 has a cylindrical cavity that is the same as the outer surface of the preform 20. Further, the core portion 84 has a cylindrical shape similar to the inner surface of the preform 20, and forms the same space as the thickness of the preform 20 by being inserted into the cavity portion of the side wall portion 81. The neck portion forming portion 83 has a cylindrical shape that surrounds the upper end side of the core portion 84, and the inner wall 83 </ b> A of the cylindrical surface has a male screw portion 3, a stopper 3 </ b> C, a neck ring 5, which are formed on the neck portion 34 of the container 1. And the pattern which forms the fitting groove | channel 6 of the neck ring 5 is formed.
A space for forming a preform is formed by attaching the core portion 84 and the neck portion forming portion 83 to the support portion 82 and inserting the core portion 84 and the neck portion forming portion 83 into the side wall portion 81. A hole from which the nozzle 85 can be mounted is provided in a portion from the lower surface of the neck forming portion 83 to the cavity. Therefore, the preform 20 is formed by injecting the material of the container 1 from the nozzle 85, for example, a pre-ethylene terephthalate, and filling the cavity.
本実施形態では、プリフォーム成型に関して、詳細は省略する。ただし、コア部84と頸部形成部83とは、支持部82に装着され、図示しないアクチュエータにより側壁部81に挿入すればよい。また、頸部形成部83は、断面半円形の一対の金型とし、コア部84とは分離して、側方からコア部84の中心軸方向に駆動させ、頸部34を形成する空間を構成するようにしてもよい。
図9に、本実施形態に係るブロー成形金型の例を示す。ブロー成形金型は、図6左側の第1の側部金型51と、図6右側の第2の側部金型56と、底部金型23Aとを有している。なお、図9のブロー成形金型では、容器1の多角形部4を形成する部分および適合溝6に適合する凸部の構成は省略している。
In the present embodiment, details regarding preform molding are omitted. However, the core part 84 and the neck part forming part 83 may be attached to the support part 82 and inserted into the side wall part 81 by an actuator (not shown). Further, the neck forming part 83 is a pair of semicircular molds, separated from the core part 84, and driven from the side in the central axis direction of the core part 84 to form a space for forming the neck part 34. You may make it comprise.
FIG. 9 shows an example of a blow molding die according to this embodiment. The blow mold has a first side mold 51 on the left side of FIG. 6, a second side mold 56 on the right side of FIG. 6, and a bottom mold 23A. In the blow mold shown in FIG. 9, the configuration of the convex portion that fits the portion that forms the polygonal portion 4 of the container 1 and the fitting groove 6 is omitted.
第1の側部金型51には、容器1をブロー成形するときに、プリフォーム20の側壁材料を支持し、容器1の側壁を形成する内部空洞の第1の内壁52が形成されている。一方、第2の側部金型56には、容器1をブロー成形するときに、プリフォーム20の側壁材料を支持し、容器1の側壁を形成する内部空洞の第2の内壁57が形成されている。第1の側部金型51と、第2の側部金型56をと組み合わせることで、容器1の側壁を形成するための内壁空間が形成される。そのため、第1の側部金型51には、複数の孔53が形成され、一方、第2の側部金型56には、複数の突起58が形成されている。孔53に、突起58が挿入され、第1の側部金型51と第2の側部金型56とが位置決めされる。また、第1の側部金型51と第2の側部金型56とは、図示しないアクチュエータ、例えば、ボールねじ、シリンダ等によって、位置決めされ、合体されてもよい。また、単に、第1の側部金型51と第2の側部金型56とを互いに平行移動可能なガイドをスライドさせることで、第1の側部金型51と第2の側部金型56とを合体させてもよい。その場合に、例えば、外力のない無負荷状態で、第1の側部金型51と第2の側部金型56とがバネによって固定され、外力(例えば、空気圧力、あるいは、電磁力等)によって、第1の側部金型51から、第2の側部金型56を引き離す構成としてもよい。外力は、例えば、人
手による手動としてもよい。
The first side mold 51 is formed with a first inner wall 52 of an internal cavity that supports the side wall material of the preform 20 and forms the side wall of the container 1 when the container 1 is blow-molded. . On the other hand, when the container 1 is blow-molded, the second side mold 56 is formed with a second inner wall 57 that supports the side wall material of the preform 20 and forms the side wall of the container 1. ing. By combining the first side mold 51 and the second side mold 56, an inner wall space for forming the side wall of the container 1 is formed. Therefore, a plurality of holes 53 are formed in the first side mold 51, while a plurality of protrusions 58 are formed in the second side mold 56. The protrusion 58 is inserted into the hole 53, and the first side mold 51 and the second side mold 56 are positioned. Further, the first side mold 51 and the second side mold 56 may be positioned and combined by an actuator (not shown) such as a ball screw or a cylinder. Further, the first side mold 51 and the second side mold 56 are simply slid by sliding guides that can move the first side mold 51 and the second side mold 56 in parallel with each other. The mold 56 may be combined. In this case, for example, the first side mold 51 and the second side mold 56 are fixed by a spring in a no-load state without external force, and external force (for example, air pressure or electromagnetic force) ), The second side mold 56 may be separated from the first side mold 51. The external force may be manually operated by hand, for example.
底部金型23Aには、底部容器蓋10を載置する段差部23Bが形成されている。さらに、段差部23Bには、段差部23Cが形成されており、底部容器蓋10の沈降部12をはめ込み可能となっている。すでに述べたように、底部金型23Aの段差部23Bには、底部容器蓋10が載置される。底部金型23Aも、アクチュエータによって、第1の側部金型51と第2の側部金型56とに、組み合わせられ、容器1を成形する空洞部を形成する。 The bottom mold 23A is formed with a step portion 23B on which the bottom container lid 10 is placed. Further, a step portion 23C is formed in the step portion 23B, and the settling portion 12 of the bottom container lid 10 can be fitted. As already described, the bottom container lid 10 is placed on the step portion 23B of the bottom mold 23A. The bottom mold 23A is also combined with the first side mold 51 and the second side mold 56 by an actuator to form a cavity for molding the container 1.
図10は、第1の側部金型51、第2の側部金型56および底部金型23Aを組み合わせた断面図の例でである。図10において、第1の側部金型51は、図9の一点鎖線L10にてA2矢印方向に切断した断面図である。また、図10において、第2の側部金型52は、図9の一点鎖線L11にてA3矢印方向に切断した断面図である。また、図10において、底部金型23Aは、図9の一点鎖線L12にてA4矢印方向に切断した断面図である。また、底部金型23Aの下方には、底部金型23Aを上下に移動可能なアクチュエータ59が示されている。 FIG. 10 is an example of a sectional view in which the first side mold 51, the second side mold 56, and the bottom mold 23A are combined. In FIG. 10, the first side mold 51 is a cross-sectional view taken in the direction of the arrow A <b> 2 along the one-dot chain line L <b> 10 of FIG. 9. Further, in FIG. 10, the second side mold 52 is a cross-sectional view taken along the one-dot chain line L11 in FIG. Further, in FIG. 10, the bottom mold 23A is a cross-sectional view cut in the direction of the arrow A4 along the one-dot chain line L12 in FIG. An actuator 59 that can move the bottom mold 23A up and down is shown below the bottom mold 23A.
アクチュエータ59は、例えば、ボールねじによる移動するものでもよい。また、ピストンとシリンダとによって直線移動するものでもよい。また、単に、第1の側部金型51および第2の側部金型56(以下、総称して側部金型という)と、底部金型23Aとを互いに平行移動可能なガイドに沿ってスライドさせることで、側部金型と底部金型23Aとを合体させてもよい。その場合に、例えば、外力のない無負荷状態で、第1の側部金型51にバネによって固定され、外力(例えば、空気圧力、あるいは、電磁力等)によって、第1の側部金型51から、底部金型23Aを引き離す構成としてもよい。その場合に、第1の側部金型51と、第2の金型52とは、ともに、不図示の支持台に搭載するようにすればよい。すなわち、支持台に搭載された第1の側部金型51と、第2の側部金型56と、アクチュエータ59に支持された底部金型23Aとによって、容器1をブロー成形する内部空洞部を形成するようにすればよい。さらに、図10では、上方から、第1の側部金型51と第2の側部金型56との間に、プリフォーム20が挿入されている。 The actuator 59 may be moved by a ball screw, for example. Further, it may be linearly moved by a piston and a cylinder. Further, the first side mold 51 and the second side mold 56 (hereinafter collectively referred to as a side mold) and the bottom mold 23A are simply moved along a guide that can move in parallel with each other. The side mold and the bottom mold 23A may be combined by sliding. In this case, for example, the first side mold 51 is fixed to the first side mold 51 with a spring in an unloaded state without external force, and is applied by an external force (for example, air pressure or electromagnetic force). The bottom mold 23 </ b> A may be separated from 51. In that case, both the first side mold 51 and the second mold 52 may be mounted on a support base (not shown). That is, the internal cavity for blow-molding the container 1 by the first side mold 51 mounted on the support base, the second side mold 56, and the bottom mold 23A supported by the actuator 59. May be formed. Further, in FIG. 10, the preform 20 is inserted between the first side mold 51 and the second side mold 56 from above.
さらに、図11に、第1の側部金型51、第2の側部金型56およびプリフォーム20を図10の上方から見た平面図を示す。図11(および図10)に示すように、第1の側部金型51で、プリフォーム20のネックリング5を受容する部分に、突起7が形成されている。突起7は、ネックリング5の適合溝6に適合する。ただし、突起7を第2の側部金型56に形成し、適合溝6を第2の側部金型56に合わせ込むようにしても構わない。
以下、図10、および図11にしたがって、ブロー成形の手順を説明する。まず、図示しない温度調節ポットによりプリフォーム20は、ブロー成形に適した延伸温度に温度調整される。この場合の延伸温度は、事前の調整工程によって、実験的に求めておいてもよい。すなわち、製造工程の中で、次工程まで時間、室温等によって最適な条件を設定すればよい。
Further, FIG. 11 shows a plan view of the first side mold 51, the second side mold 56 and the preform 20 as viewed from above in FIG. As shown in FIG. 11 (and FIG. 10), a projection 7 is formed on the first side mold 51 at a portion of the preform 20 that receives the neck ring 5. The protrusion 7 fits in the fitting groove 6 of the neck ring 5. However, the protrusion 7 may be formed in the second side mold 56 and the matching groove 6 may be fitted in the second side mold 56.
Hereinafter, the blow molding procedure will be described with reference to FIGS. 10 and 11. First, the temperature of the preform 20 is adjusted to a stretching temperature suitable for blow molding by a temperature adjustment pot (not shown). The stretching temperature in this case may be obtained experimentally by a prior adjustment process. That is, in the manufacturing process, optimum conditions may be set depending on the time, room temperature, etc. until the next process.
そして、プリフォーム工程で射出成形等により形成されたプリフォーム20を第1の側部金型51に装着する。このとき、プリフォーム20のネックリング5に形成した適合溝6を第1の側部金型51の突起7に合わせ込む。これによって、プリフォーム20の中心軸周りの回転角が固定される。
次に、図示しないアクチュエータにより、第2の側部金型56が第1の側部金型51に位置付けされ、固定される。これによって、容器1の側壁を形成する金型の内壁が形成される。
Then, the preform 20 formed by injection molding or the like in the preform process is mounted on the first side mold 51. At this time, the fitting groove 6 formed in the neck ring 5 of the preform 20 is fitted into the protrusion 7 of the first side mold 51. As a result, the rotation angle around the central axis of the preform 20 is fixed.
Next, the second side mold 56 is positioned and fixed to the first side mold 51 by an actuator (not shown). Thereby, the inner wall of the mold that forms the side wall of the container 1 is formed.
次に、底部金型23Aに、底部容器蓋10を載置する。このとき、底部容器蓋10の沈
降部12が底部金型23Aの段差部23Cに合わせ込まれる。そして、アクチュエータ59により、底部金型23Aが第1の側部金型51、および第2の側部金型56の構成する空洞部の底面を構成するように位置付けられ、固定される。
そして、プリフォーム20内に、図示しないノズルおよび配管を通じて加圧ガスを圧送する。加圧ガスは、例えば、空気、窒素等である。その結果、第1の側部金型51、第2の側部金型56、および底部金型23Aで構成される空洞内でプリフォーム20の壁面が膨張し、成形される。このとき、底部容器蓋10は、底部金型23Aで膨張したプリフォーム20から生成される容器1の底部面に組み込まれる。図6にて説明したように、底部容器蓋10のリング部24の下側の面が、容器1の中心軸に直交または下方向に傾いているので、底部容器蓋10は、容器1の底部からはずれにくい。また、リング部24の上側の面が、下方向に傾いているので、リング部24、24間の谷部等が外開きとなり、容器1の底部の材料が密着しやすい。
Next, the bottom container lid 10 is placed on the bottom mold 23A. At this time, the sedimentation portion 12 of the bottom container lid 10 is fitted to the step portion 23C of the bottom mold 23A. Then, the bottom mold 23 </ b> A is positioned and fixed by the actuator 59 so as to configure the bottom surface of the cavity formed by the first side mold 51 and the second side mold 56.
Then, pressurized gas is pumped into the preform 20 through a nozzle and a pipe (not shown). The pressurized gas is, for example, air, nitrogen or the like. As a result, the wall surface of the preform 20 expands and is molded in the cavity formed by the first side mold 51, the second side mold 56, and the bottom mold 23A. At this time, the bottom container lid 10 is incorporated into the bottom surface of the container 1 generated from the preform 20 expanded by the bottom mold 23A. As described with reference to FIG. 6, since the lower surface of the ring portion 24 of the bottom container lid 10 is inclined perpendicularly or downward with respect to the central axis of the container 1, the bottom container lid 10 is the bottom of the container 1. Hard to come off. In addition, since the upper surface of the ring portion 24 is inclined downward, the valley portion between the ring portions 24 and 24 is opened outward, and the material of the bottom portion of the container 1 is easily adhered.
その後、容器1が固化すると、アクチュエータ59を下方に駆動し、底部金型23Aが取り外される。このとき、底部容器蓋10は、図6に示した断面が山形状のリング部24の作用により、容器1の底部に保持される。さらに、図示しないアクチュエータにより第2の側部金型56が取り外され、ブロー成形された容器1が取り出される。
この構成では、プリフォームの20の上部に形成された雄ねじ部3のプリフォーム中心軸に対する回転角は、ネックリング5の適合溝6と第1の側部金型51の突起7とによって所定角度に固定される。
Thereafter, when the container 1 is solidified, the actuator 59 is driven downward, and the bottom mold 23A is removed. At this time, the bottom container lid 10 is held on the bottom of the container 1 by the action of the ring portion 24 whose cross section shown in FIG. Further, the second side mold 56 is removed by an actuator (not shown), and the blow molded container 1 is taken out.
In this configuration, the rotation angle of the male thread portion 3 formed on the upper portion of the preform 20 with respect to the preform center axis is determined by the fitting groove 6 of the neck ring 5 and the projection 7 of the first side mold 51. Fixed to.
一方、底部容器蓋10の雌ねじ部11の回転角は、底部容器蓋10の沈降部12が底部金型23Aの段差部23Cにはめ込まれることで、底部金型23Aに対して固定される。さらに、底部金型23Aの中心軸(図10の矢印Zの示す容器1の中心軸)に対する回転角と、第1の側部金型51(および第2の側部金型56)の回転角の容器1の中心軸に対する回転角とは、アクチュエータ59と、第1の側部金型51(および第2の側部金型56)を支持する図示しない支持装置(アクチュエータ等)との位置関係、あるいは、底部金型23Aをアクチュエータ59に取り付ける位置関係(上記中心軸を中心にした回転角度)によって規制される。 On the other hand, the rotation angle of the internal thread portion 11 of the bottom container lid 10 is fixed to the bottom mold 23A by fitting the settling portion 12 of the bottom container lid 10 into the stepped portion 23C of the bottom mold 23A. Furthermore, the rotation angle with respect to the central axis of the bottom mold 23A (the central axis of the container 1 indicated by the arrow Z in FIG. 10) and the rotation angle of the first side mold 51 (and the second side mold 56). The rotation angle with respect to the central axis of the container 1 is the positional relationship between the actuator 59 and a support device (actuator or the like) (not shown) that supports the first side mold 51 (and the second side mold 56). Alternatively, it is regulated by the positional relationship (the rotation angle about the central axis) where the bottom mold 23A is attached to the actuator 59.
したがって、容器1のネックリング5の適合溝6、第1の側部金型51の突起7、底部容器蓋10の沈降部12、および底部金型23Aの段差部23Cにより、プリフォーム20と、底部容器蓋10とが、上記中心軸を中心にした相対的な回転角度を所定値に固定された状態で、底部容器蓋10が容器1に組み込まれる。したがって、一の容器1の頸部34を他の容器1の底部容器蓋10にねじ入れて、複数の容器1を結合したときに、それぞれの容器1の側壁の凸部15(および凹部16)を容器1の中心軸周りで固定した角度位置に位置付けることができる。 Therefore, the preform 20 is formed by the fitting groove 6 of the neck ring 5 of the container 1, the protrusion 7 of the first side mold 51, the settling part 12 of the bottom container lid 10, and the step part 23C of the bottom mold 23A. The bottom container lid 10 is assembled into the container 1 in a state where the relative rotation angle around the central axis is fixed to a predetermined value. Accordingly, when the neck portion 34 of one container 1 is screwed into the bottom container lid 10 of the other container 1 and a plurality of containers 1 are joined, the convex portions 15 (and the concave portions 16) on the side walls of the respective containers 1 are combined. Can be positioned at a fixed angular position around the central axis of the container 1.
したがって、連結した複数の容器1同士で、凸部15のなす長手方向の直線は、互いに同一直線上に位置付けされる。また、凹部16のなす長手方向の直線は、互いに同一直線上に位置付けされる。したがって、連結された複数の容器1(以下、連結容器と呼ぶ)の側壁の凸部15を他の連結容器の凹部16に確実に合わせ込むことができる。すなわち、連結容器に結合された個々の容器1の中心軸周りの回転角がばらつき、凸部15のなす長手方向の直線あるいは凹部16のなす長手方向の直線の位置が相互に一致しない、という不具合の発生を抑制できる。 Therefore, the straight lines in the longitudinal direction formed by the convex portions 15 are positioned on the same straight line among the connected containers 1. The straight lines in the longitudinal direction formed by the recesses 16 are positioned on the same straight line. Therefore, the convex part 15 of the side wall of the connected several container 1 (henceforth a connection container) can be reliably match | combined with the recessed part 16 of another connection container. That is, the rotation angle around the central axis of the individual containers 1 coupled to the connection container varies, and the positions of the longitudinal straight lines formed by the convex portions 15 or the longitudinal straight lines formed by the concave portions 16 do not match each other. Can be suppressed.
<変形例1>
上記実施形態では、沈降部12の断面形状は、円弧状であったが、本発明の実施において、沈降部12の断面形状が、円弧に限定されるわけではない。図12に、変形例に係る沈降部12の断面形状例を示す。
図12に示すように、沈降部12の断面形状は、例えば、矩形であってもよい(同図(A))。その場合、底部容器蓋10の天井部40がなす円の半径方向に1辺を含む矩形状であってもよい。また、沈降部12の断面形状は、例えば、扇形であってもよい。また、沈降部12の断面形状は、中心が、底部容器蓋10の中心軸の位置からずれて形成された円形の断面を有する円筒内面形状であってもよい(同図(B))。要するに、容器1の中心軸に対して、底部容器蓋10の回転を阻止できる構造であればよい。また、沈降部12の断面形状は、矩形状に限られず、多角形状でも構わない。また、沈降部12が複数の段差を有する形状でも構わない。例えば、沈降部12が円筒形状(同図(C))、あるいは、直方体形状、立方体形状の段差を複数有する形状でもよい。
<Modification 1>
In the said embodiment, although the cross-sectional shape of the sedimentation part 12 was circular arc shape, in implementation of this invention, the cross-sectional shape of the sedimentation part 12 is not necessarily limited to a circular arc. In FIG. 12, the cross-sectional example of the sedimentation part 12 which concerns on a modification is shown.
As shown in FIG. 12, the cross-sectional shape of the sedimentation part 12 may be, for example, a rectangle (FIG. 12A). In that case, a rectangular shape including one side in the radial direction of the circle formed by the ceiling portion 40 of the bottom container lid 10 may be used. Moreover, the cross-sectional shape of the sedimentation part 12 may be a sector shape, for example. Moreover, the cross-sectional shape of the sedimentation part 12 may be a cylindrical inner surface shape having a circular cross section whose center is shifted from the position of the central axis of the bottom container lid 10 ((B) in the same figure). In short, any structure that can prevent the bottom container lid 10 from rotating with respect to the central axis of the container 1 may be used. Moreover, the cross-sectional shape of the sedimentation part 12 is not restricted to a rectangular shape, A polygonal shape may be sufficient. Moreover, the shape in which the sedimentation part 12 has a some level | step difference may be sufficient. For example, the sedimentation part 12 may have a cylindrical shape (the same figure (C)), or a shape having a plurality of steps having a rectangular parallelepiped shape or a cubic shape.
<変形例2>
上記実施形態および変形例1では、容器1の側方の一の面に凸部15を設け、その裏面に凹部16を設けた。しかし、容器1の構成、および側部金型の構成は、このような構造には限定されない。例えば、容器1の中心軸周りに所定の角度間隔で、凸部15と、凹部16とを容器1の側壁に設けてもよい。図13に、第1の凸部15−1と、その裏面の凹部16−1とを対にして形成し、さらに、90度回転した位置に、第2の凸部15−2と、その裏面の凹部16−2とを対にして形成した例を示す(同図(A))。当然であるが、90度以外の間隔で複数対設けてもよい。例えば、45度間隔で、凸部15と、その裏面の凹部16とを、合計4対設けてもよい(同図(B))。さらに、多くの凸部15と、その裏面の凹部16とを形成してもよい。
また、図1から図3と同様、複数の凸部15,15,15と、複数の凹部16,16,16とを1組にして、複数組設けてもよい(同図(C))。
<Modification 2>
In the said embodiment and the modification 1, the convex part 15 was provided in the one surface of the side of the container 1, and the recessed part 16 was provided in the back surface. However, the configuration of the container 1 and the configuration of the side mold are not limited to such a structure. For example, the convex portion 15 and the concave portion 16 may be provided on the side wall of the container 1 at a predetermined angular interval around the central axis of the container 1. In FIG. 13, the first convex portion 15-1 and the concave portion 16-1 on the back surface thereof are formed as a pair, and further, the second convex portion 15-2 and the back surface thereof are located at a position rotated 90 degrees. An example in which the recess 16-2 is formed in a pair is shown (FIG. 2A). Naturally, a plurality of pairs may be provided at intervals other than 90 degrees. For example, a total of four pairs of convex portions 15 and concave portions 16 on the back surface thereof may be provided at intervals of 45 degrees ((B) in the figure). Furthermore, you may form many convex parts 15 and the recessed part 16 of the back surface.
Similarly to FIGS. 1 to 3, a plurality of convex portions 15, 15, 15 and a plurality of concave portions 16, 16, 16 may be provided as one set (FIG. 1C).
<変形例3>
上記実施形態およびその変形例1、2では、底部容器蓋10を事前に成形しておき、底部金型23Aに載置した。しかし、このような構成に代えて、底部金型23A自体に、頸部34の雄ねじ部3と同等の構造を組み込み、ブロー成形によって直接、容器1の底部37に、他の容器1の頸部34をねじ入れ可能な雌ねじ部を一体成形してもよい。
図14に、その場合の底部金型93Aの構成を示す。底部金型93Aには、雄ねじ部の形成された円筒部94が設けられている。底部金型93Aが、第1の側部金型51および第2の側部金型56とともに空洞部を形成したときに、円筒部94の中心軸は、空洞部の中心軸に位置付けられる。したがって、第1実施形態、または、第2実施形態と同様の手順で、容器1がブロー成形された後、まず、第2の側部金型56を取り外し、次に、第1の側部金型51を取り外すと、底部金型93Aに底部37をねじ入れされた状態で、容器1を取り出すことができる。さらに、容器1と底部金型93Aとを容器1の中心軸周りに相対的に回転させ、容器1を底部金型93Aから取り外すことができる。このとき、底部37には、雌ねじ部37Aが形成されている。
この場合も、第1実施形態と同様のプリフォーム20、第1の側部金型51および第2の側部金型56を用いることで、容器1の頸部34に設けた雄ねじ部3と、底部37に形成した雌ねじ部37Aの中心軸に対する相対的な回転角度を固定できる。
<Modification 3>
In the above-described embodiment and its modifications 1 and 2, the bottom container lid 10 was previously formed and placed on the bottom mold 23A. However, instead of such a configuration, a structure equivalent to the male screw portion 3 of the neck portion 34 is incorporated in the bottom mold 23A itself, and the neck portion of the other container 1 is directly connected to the bottom portion 37 of the container 1 by blow molding. A female screw part into which 34 can be screwed may be integrally formed.
FIG. 14 shows the configuration of the bottom mold 93A in that case. The bottom mold 93A is provided with a cylindrical portion 94 having a male screw portion. When the bottom mold 93A forms a cavity together with the first side mold 51 and the second side mold 56, the central axis of the cylindrical section 94 is positioned at the central axis of the cavity. Therefore, after the container 1 is blow-molded in the same procedure as in the first embodiment or the second embodiment, first, the second side mold 56 is removed, and then the first side mold. When the mold 51 is removed, the container 1 can be taken out with the bottom 37 screwed into the bottom mold 93A. Further, the container 1 can be detached from the bottom mold 93A by rotating the container 1 and the bottom mold 93A relatively around the central axis of the container 1. At this time, the bottom portion 37 is formed with a female screw portion 37A.
Also in this case, by using the preform 20, the first side mold 51, and the second side mold 56 similar to those in the first embodiment, the male screw portion 3 provided on the neck 34 of the container 1 and The rotation angle relative to the central axis of the female screw portion 37A formed on the bottom portion 37 can be fixed.
<変形例4>
上記実施形態およびその変形例1から3では、底部金型23Aは、第1の側部金型51および第2の側部金型56の下方から、アクチュエータ59等により、平行移動し、容器1を構成するための空洞部の底面に位置付けた。しかし、底部金型23Aの移動方向は、上記実施形態の方向に限定されるものではない。例えば、図15に示すように、第1の側部金型51の側方から、底部金型23Aをスライドさせて、容器1を構成するための空洞部の底面に位置付けるようにしても構わない。
なお、図15では、横方向にスライドするアクチュエータ59Aが例示されているが、例えば、底部金型23Aのさらに下方に、ベアリング、ローラ、あるいは、底部金型23
Aを下方向から支持し、平行移動をガイドするガイド部材を設けても構わない。
<Modification 4>
In the above embodiment and the first to third modifications thereof, the bottom mold 23A is translated from below the first side mold 51 and the second side mold 56 by the actuator 59 and the like, and the container 1 It was positioned on the bottom surface of the cavity portion for constituting. However, the moving direction of the bottom mold 23A is not limited to the direction of the above embodiment. For example, as shown in FIG. 15, the bottom mold 23 </ b> A may be slid from the side of the first side mold 51 to be positioned on the bottom surface of the cavity for configuring the container 1. .
15 illustrates the actuator 59A that slides in the lateral direction. For example, a bearing, a roller, or the bottom mold 23 is provided further below the bottom mold 23A.
A guide member that supports A from below and guides parallel movement may be provided.
1 容器
2 円筒部
3 雄ねじ部
3C ストッパ
4 多角形部
5 ネックリング
6 適合溝
7 突起
10 底部容器蓋
12 沈降部
15 凸部
16 凹部
23A 底部金型
23B 台座部
23C 段差部
24 リング部
34 頸部
35 上壁部
51 第1の側部金型
56 第2の側部金型
81 (プリフォーム金型の)側壁部
82 (プリフォーム金型の)支持部
83 (プリフォーム金型の)頸部形成部
84 (プリフォーム金型の)コア部
DESCRIPTION OF SYMBOLS 1 Container 2 Cylindrical part 3 Male thread part 3C Stopper 4 Polygon part 5 Neck ring 6 Fit groove 7 Protrusion 10 Bottom container lid 12 Settling part 15 Convex part 16 A Concave part 23A Bottom part mold 23B Base part 23C Step part 24 Ring part 34 Neck part 35 Upper wall portion 51 First side die 56 Second side die 81 Side wall portion 82 (for preform die) Support portion 83 (for preform die) Neck portion (for preform die) Forming part 84 Core part (preform mold)
Claims (8)
底部、その底部に立設された筒状の側壁、およびその筒状の側壁を先端部で絞り外面に雄ねじ部を設けた頸部を有し内容物を収容する収容部と、
前記底部に埋め込まれ、前記雄ねじ部に適合する雌ねじ部を有し、前記雄ねじ部の構成を含む他の容器の頸部をねじ入れ可能な受容部と、を備え、
前記頸部の雄ねじ部下端から前記底部方向の位置には、円周形状の一部を欠いた適合溝付きつば部がさらに設けられ、
前記受容部は、前記頸部がねじ入れされる開口側と反対の端部の少なくとも一部を塞ぐ天井部を有し、前記天井部の少なくとも、前記頸部がねじ入れされる内面側には段差が形成され、その段差に適合する段差を有する支持台に載置されたときに前記雌ねじ部中心軸周りの回転を阻害する容器。 A container configured to be connectable to another container,
A container having a bottom part, a cylindrical side wall provided upright on the bottom part, and a neck part provided with a male thread part on the outer surface of the throttle at the tip part of the cylindrical side wall;
A receiving portion embedded in the bottom portion and having a female threaded portion that fits into the male threaded portion, and capable of screwing a neck of another container including the configuration of the male threaded portion,
At the position in the bottom direction from the lower end of the male threaded portion of the neck, a collar portion with an adapted groove lacking a part of the circumferential shape is further provided,
The receiving portion has a ceiling portion that covers at least a part of an end opposite to the opening side into which the neck portion is screwed, and at least an inner surface side of the ceiling portion into which the neck portion is screwed. A container that inhibits rotation around the central axis of the female screw portion when the step is formed and placed on a support base having a step that matches the step.
前記容器を成形するときに容器側面が当接される内壁側面を構成する一対の側部金型と、前記成形するときに前記容器の底部が当接される内壁底面を構成する底面金型とを備え、前記一対の側部金型は、前記容器の頸部に設けられるつば部の円周形状の一部を欠いた適合溝に適合可能な突起を有し、前記底面金型は、前記容器の底部に埋め込まれる、前記容器の頸部に設けた雄ねじ部と同等の雄ねじ部を有する他の容器の頸部をねじ入れ可能な受容部を載置する支持台を有し、前記受容部は、前記頸部がねじ入れされる開口側と反対の端部の少なくとも一部を塞ぐ天井部を有し、前記天井部の少なくとも、前記頸部がねじ入れされる内面側には段差が形成され、前記支持台には、前記受容部を載置したときに前記段差に適合する段差が形成され前記雌ねじ部中心軸に対する、前記受容部の回転を阻害する金型。 A mold for manufacturing a container configured to be connectable to another container,
A pair of side molds constituting an inner wall side surface against which a container side surface abuts when molding the container; and a bottom mold constituting an inner wall bottom surface against which a bottom portion of the container abuts when molding. The pair of side molds has a projection that can be fitted to a fitting groove that lacks a part of the circumferential shape of a collar provided on the neck of the container, and the bottom mold is A support base on which a receiving portion that can be screwed into a neck portion of another container having a male screw portion equivalent to the male screw portion provided in the neck portion of the container is embedded; Has a ceiling part that closes at least a part of the end opposite to the opening side into which the neck part is screwed, and a step is formed at least on the inner surface side of the ceiling part into which the neck part is screwed The support base is formed with a step that matches the step when the receiving portion is placed. With respect to the female screw portion central axis, a mold inhibiting rotation of the receptacle.
前記容器は、底部、その底部に立設された筒状の側壁、およびその筒状の側壁を先端部で絞り外面に雄ねじ部を設けた頸部を有し内容物を収容する収容部と、
前記底部に埋め込まれ、前記雄ねじ部に適合する雌ねじ部を有し、前記雄ねじ部の構成を含む他の容器の頸部をねじ入れ可能な受容部と、を備え、
前記受容部は、前記頸部がねじ入れされる開口側と反対の端部の少なくとも一部を塞ぐ天井部を有し、前記天井部の少なくとも、前記頸部がねじ入れされる内面側には段差が形成され、
前記金型は、前記容器を成形するときに容器側面が当接される内壁側面を構成する一対の側部金型と、前記成形するときに前記容器の底部が当接される内壁底面を構成する底面金型とを備え、前記一対の側部金型は、前記容器の頸部に設けられたつば部の円周形状の一部を欠いた適合溝に適合可能な突起を有し、
前記底面金型は、前記容器の底部に埋め込まれる、前記容器の頸部に設けた雄ねじ部と同等の雄ねじ部を有する他の容器の頸部をねじ入れ可能な受容部を載置する支持台を有し、
前記支持台には、前記受容部を載置したときに前記段差に適合する段差が形成されており、前記製造方法は、外面に雄ねじ部を設けた頸部を有し、前記頸部の雄ねじ部下端から
前記底部方向の位置には、円周形状の一部を欠いた適合溝付きつば部を有するプリフォーム材料を成形する工程と、前記成形されたプリフォーム材料を前記一対の側部金型の内面空間に位置付けるとともに、前記突起を前記適合溝に適合させる工程と、
前記底面金型の段差に前記受容部の段差を合わせて載置する工程と、
前記受容部を載置した底面金型によって前記一対の側壁金型の底面を閉塞する工程と、
形成される容器中心軸に対して、前記受容部と前記適合溝との回転角を規制した状態で、前記プリフォーム材料に気体を吹き込み、前記プリフォーム材料を前記容器の形状に成形する工程と、を含む製造方法。 A manufacturing method for manufacturing a container configured to be connectable to another container using a mold,
The container has a bottom portion, a cylindrical side wall erected on the bottom portion, and a storage portion for storing contents having a neck portion provided with a male thread portion on the outer surface of the throttle at the distal end portion of the cylindrical side wall;
A receiving portion embedded in the bottom portion and having a female threaded portion that fits into the male threaded portion, and capable of screwing a neck of another container including the configuration of the male threaded portion,
The receiving portion has a ceiling portion that covers at least a part of an end opposite to the opening side into which the neck portion is screwed, and at least an inner surface side of the ceiling portion into which the neck portion is screwed. A step is formed,
The mold constitutes a pair of side molds constituting an inner wall side surface against which a container side surface abuts when molding the container, and an inner wall bottom surface against which a bottom portion of the container abuts when molding. A pair of side molds, each of which has a protrusion that can be fitted in a fitting groove that lacks a part of the circumferential shape of the collar provided on the neck of the container,
The bottom mold is a support base on which a receiving portion that can be screwed into a neck portion of another container having a male screw portion equivalent to a male screw portion provided in the neck portion of the container is embedded in the bottom portion of the container. Have
The support base is formed with a step that matches the step when the receiving portion is placed, and the manufacturing method includes a neck portion provided with a male screw portion on an outer surface, and the male screw of the neck portion Forming a preform material having an adapted grooved collar part lacking a part of a circumferential shape at a position in the bottom direction from the lower end of the part; and forming the preform material into the pair of side parts Positioning the inner surface space of the mold and fitting the protrusion into the fitting groove;
Placing the step of the receiving portion with the step of the bottom mold,
A step of closing the bottom surfaces of the pair of side wall molds with a bottom surface mold on which the receiving portion is placed;
Forming a preform material into the shape of the container by blowing gas into the preform material in a state in which a rotation angle between the receiving portion and the fitting groove is restricted with respect to the container central axis to be formed; The manufacturing method containing.
底部、その底部に立設された筒状の側壁、およびその筒状の側壁を先端部で絞り外面に雄ねじ部を設けた頸部を有し内容物を収容する収容部と、
前記底部に埋め込まれ、前記雄ねじ部に適合する雌ねじ部を有し、前記雄ねじ部の構成を含む他の容器の頸部をねじ入れ可能な受容部と、を備え、
前記頸部の雄ねじ部下端から前記底部方向の位置には、円周形状の一部を欠いた適合溝付きつば部がさらに設けられ、
前記受容部は、略円筒形をなし、前記底部の材料によって前記容器に一体成形されている容器。 A container configured to be connectable to another container,
A container having a bottom part, a cylindrical side wall provided upright on the bottom part, and a neck part provided with a male thread part on the outer surface of the throttle at the tip part of the cylindrical side wall;
A receiving portion embedded in the bottom portion and having a female threaded portion that fits into the male threaded portion, and capable of screwing a neck of another container including the configuration of the male threaded portion,
At the position in the bottom direction from the lower end of the male threaded portion of the neck, a collar portion with an adapted groove lacking a part of the circumferential shape is further provided,
The receiving portion has a substantially cylindrical shape and is integrally formed with the container by the material of the bottom portion.
前記容器を成形するときに容器側面が当接される内壁側面を構成する一対の側部金型と、前記成形するときに前記容器の底部が当接される内壁底面を構成する底面金型とを備え、前記一対の側部金型は、前記容器の頸部に設けられるつば部の円周形状の一部を欠いた適合溝に適合可能な突起を有し、
前記底面金型は、前記容器の底部に埋め込まれる、前記容器の頸部に設けた雄ねじ部と同等の雄ねじ部を有し、前記一対の側部金型が形成する空洞の中心軸に対する前記適合溝の角度位置に対する前記雄ねじ部の角度位置が拘束されている、金型。 A mold for manufacturing a container configured to be connectable to another container,
A pair of side molds constituting an inner wall side surface against which a container side surface abuts when molding the container; and a bottom mold constituting an inner wall bottom surface against which a bottom portion of the container abuts when molding. The pair of side molds have protrusions that can be fitted in fitting grooves that lack a part of the circumferential shape of the collar portion provided on the neck of the container,
The bottom mold has a male screw portion equivalent to a male screw portion provided in a neck portion of the container, which is embedded in the bottom of the container, and the conformity with respect to the central axis of the cavity formed by the pair of side molds The metal mold | die with which the angular position of the said external thread part with respect to the angular position of a groove | channel is restrained.
前記容器は、底部、その底部に立設された筒状の側壁、およびその筒状の側壁を先端部で絞り外面に雄ねじ部を設けた頸部を有し内容物を収容する収容部と、
前記底部に埋め込まれ、前記雄ねじ部に適合する雌ねじ部を有し、前記雄ねじ部の構成を含む他の容器の頸部をねじ入れ可能な受容部と、を備え、
前記金型は、
前記容器を成形するときに容器側面が当接される内壁側面を構成する一対の側部金型と、前記成形するときに前記容器の底部が当接される内壁底面を構成する底面金型とを備え、前記一対の側部金型は、前記容器の頸部に設けられたつば部の円周形状の一部を欠いた適合溝に適合可能な突起を有し、
前記底面金型は、前記容器の底部に埋め込まれる、前記容器の頸部に設けた雄ねじ部と同等の雄ねじ部を有し、前記一対の側部金型が形成する空洞の中心軸に対する前記適合溝の角度位置に対する前記雄ねじ部の角度位置が拘束され、
前記製造方法は、
外面に雄ねじ部を設けた頸部を有し、前記頸部の雄ねじ部下端から前記底部方向の位置には、円周形状の一部を欠いた適合溝付きつば部を有するプリフォーム材料を成形する工程と、
前記成形されたプリフォーム材料を前記一対の側部金型の内面空間に位置付けるとともに、前記突起を前記適合溝に適合させる工程と、
前記底面金型によって前記一対の側壁金型の底面を閉塞する工程と、
前記プリフォーム材料に気体を吹き込み、前記プリフォーム材料を前記容器の形状に成形する工程と、を含む製造方法。 A manufacturing method for manufacturing a container configured to be connectable to another container using a mold,
The container has a bottom portion, a cylindrical side wall erected on the bottom portion, and a storage portion for storing contents having a neck portion provided with a male thread portion on the outer surface of the throttle at the distal end portion of the cylindrical side wall;
A receiving portion embedded in the bottom portion and having a female threaded portion that fits into the male threaded portion, and capable of screwing a neck of another container including the configuration of the male threaded portion,
The mold is
A pair of side molds constituting an inner wall side surface against which a container side surface abuts when molding the container; and a bottom mold constituting an inner wall bottom surface against which a bottom portion of the container abuts when molding. The pair of side molds have protrusions that can be fitted into fitting grooves that lack a part of the circumferential shape of the collar provided on the neck of the container,
The bottom mold has a male screw portion equivalent to a male screw portion provided in a neck portion of the container, which is embedded in the bottom of the container, and the conformity with respect to the central axis of the cavity formed by the pair of side molds The angular position of the male screw portion with respect to the angular position of the groove is constrained,
The manufacturing method includes:
A preform material having a neck portion provided with a male screw portion on the outer surface, and having a flange portion with a matching groove lacking a part of a circumferential shape at a position in the bottom direction from the lower end of the male screw portion of the neck portion. And a process of
Positioning the molded preform material in the inner space of the pair of side molds and fitting the protrusions into the fitting grooves;
Clogging the bottom surfaces of the pair of side wall molds with the bottom surface molds;
And a step of blowing a gas into the preform material, and molding the preform material into the shape of the container.
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WO2016047552A1 (en) * | 2014-09-25 | 2016-03-31 | 日精エー・エス・ビー機械株式会社 | Blow molding device, blow molding method, and preform sealing/positioning part |
US20160332776A1 (en) * | 2012-03-16 | 2016-11-17 | Buddeez, Inc. | Stackable, pourable product container |
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KR101959070B1 (en) * | 2017-02-21 | 2019-03-19 | (주)삼정 | Dual container producing by blow molding |
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2008
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US20160332776A1 (en) * | 2012-03-16 | 2016-11-17 | Buddeez, Inc. | Stackable, pourable product container |
WO2016047552A1 (en) * | 2014-09-25 | 2016-03-31 | 日精エー・エス・ビー機械株式会社 | Blow molding device, blow molding method, and preform sealing/positioning part |
JP2016064603A (en) * | 2014-09-25 | 2016-04-28 | 日精エー・エス・ビー機械株式会社 | Blow molding device, blow molding method, and sealing/positioning component for preform |
US10857721B2 (en) | 2014-09-25 | 2020-12-08 | Nissei Asb Machine Co., Ltd. | Blow molding device, blow molding method, and preform sealing/positioning part |
CN106346757A (en) * | 2016-11-08 | 2017-01-25 | 中山伟兆塑胶制品有限公司 | Automatic positioning mechanism for automatic bottle blowing machine |
KR102303256B1 (en) * | 2020-04-08 | 2021-09-16 | 주식회사 티제이에스 | Molding device for extrusion blow molding and molding method using same |
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