JPH021773B2 - - Google Patents

Info

Publication number
JPH021773B2
JPH021773B2 JP61239497A JP23949786A JPH021773B2 JP H021773 B2 JPH021773 B2 JP H021773B2 JP 61239497 A JP61239497 A JP 61239497A JP 23949786 A JP23949786 A JP 23949786A JP H021773 B2 JPH021773 B2 JP H021773B2
Authority
JP
Japan
Prior art keywords
bottle
mouth
minimum diameter
guide plate
protrusion
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
JP61239497A
Other languages
Japanese (ja)
Other versions
JPS63239131A (en
Inventor
Hajime Kojima
Seiji Goshima
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NIPPON TAISANBIN KOGYO KK
Original Assignee
NIPPON TAISANBIN KOGYO KK
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by NIPPON TAISANBIN KOGYO KK filed Critical NIPPON TAISANBIN KOGYO KK
Priority to JP23949786A priority Critical patent/JPS63239131A/en
Publication of JPS63239131A publication Critical patent/JPS63239131A/en
Publication of JPH021773B2 publication Critical patent/JPH021773B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Containers Having Bodies Formed In One Piece (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)

Description

【発明の詳細な説明】[Detailed description of the invention]

(産業上の利用分野) この発明はガラスびん口部の成形方法に関し、
特にはガラスびん口部内側一定位置に最小径部を
形成する方法に関する。 (従来の技術) 一般にガラスびんの成形はセツツルブローおよ
びカウンターブローという圧縮エアーのブローイ
ング工程によつて行なわれている。しかるに、び
んの外形状はさておき、びんの内形状、特にびん
口部の内形状を所定の設計形状に成形することは
極めて困難であつた。この原因としては、金型
各部品との接触具合によつてガラスの温度が局部
的に変化すること、ブローエア(カウンタブロ
ー)の入り方が一定でないことなどによると考え
られている。 従来では、びん口部内側の形状の厳密性がさほ
ど要求されることはなかつた。びんの口部内側形
状の不定性は他の条件によつて、例えばパツキン
を用いるとかしてこれを補うのが通常であつた。 (発明が解決しようとする問題点) しかしながら、近年、ガラスびんにおいても各
種のタイプのびんが要求されるようになり、その
うちでも次のようなびんにおいてはその口部の内
側形状の特定が厳密に求められる。 (イ) 例えば炭酸飲料のようにあらかじめびん内部
に封入した密栓部材によつて内容物を密封する
ようにした容器構造のもの。 (ロ) 例えば化粧品容器のように密封のための内栓
形状が非常に複雑でびん口部内側の一定位置に
一定の最小径部を形成することが厳密に要求さ
れるもの。 この発明は、このような状況に鑑みて開発され
たものであつて、その目的するところは、びん口
部内側の一定位置に所定の最小径部を形成する方
法を提供することにある。 (問題点を解決するための手段) 上の目的を達成するために、この発明は、ガラ
スびん口部内側の一定位置に最小径部を形成する
に際して、口部成形金型のガイドプレートに前記
びん口部内の最小径部を規定する突条部を形成し
該突条部をびん口部内に没入するようにして成形
を行なうことを特徴とするガラスびん口部の成形
方法を提案するものである。 (作用) びん口部内側の一定位置に最小径部を形成する
ようなことは従来のガラスびん製法では要求され
ることがなかつたのであるが、この発明では、こ
のような要請を実現するために、口部の成形にガ
イドプレート(フイニツシユガイドプレート)を
用いることに着目して、このガイドプレートに前
記最小径部を規定する突条部を形成し該突条部を
びん口部内に没入してびん成形を行ない、ガラス
びん口部内部の形状を変化させてガラスの伸び位
置を調整し、もつて所期の最小径部を形成しよう
とするものである。 (実施例) 以下、添付の図面とともにこの発明方法の実施
例を説明すると、添付の図面第1図は粗型による
びん成形の一例を示す要部の断面図、第2図はガ
ラスびん口部の拡大断面図、第3図はガイドプレ
ートの要部の拡大断面図である。 まず第1図について説明すると、ガラスびん口
部の成形は通常粗型10による第一次ブローイン
グによつてなされる。なお、第1図の第一次ブロ
ーイングの後ガラス製品(パリソン)は仕上型に
反転移動され第2次ブローイングによつて最終製
品に成形される。 第1図において、符号11はキヤビテイ、12
は口型、20はガイドプレート(フイニツシユガ
イドプレート)、21は突条部、30はプランジ
ヤ、31はプランジヤのエア吹き出し口、35は
シンブル、36はホルダーである。なお、同図に
おいては図の左半部がプランジヤ30が前進した
位置30Aを、右半部がプランジヤ30が後退し
てエアが吹き込まれる位置30Bをそれぞれ表わ
している。 第2図は、口部41内側の一定位置に最小径部
42を形成した炭酸飲料用のガラスびん40の要
部の断面図である。このびん40は、あらかじめ
びん内部に封入した密栓部材49によつて内容物
を密封するようにした容器構造を有するもので、
当該密栓部材49による密閉および器具による開
栓器の関係上、びん口部41の天面から所定の長
さH位置に所定直径Iの最小径部42を形成する
ことが要求されるものである。 第3図は上述したびん容器のための成形型の要
部を示す断面図で、口部成形金型のガイドプレー
ト20に前記びん口部内の最小径部を規定する突
条部21が形成されている。この突条部2は、前
記びん口部41天面に対応するガイドプレート2
0の凹陥部23から所定の長さH1位置に所定の
直径I1の最小径部をもつて形成される。突条部2
1は図示のように鋭角的なテーパ部として形成さ
れることが望ましい。 このような突条部21を形成したガイドプレー
ト20をびん口部内に没入するようにして成形を
行なうことにより所期の最小径部42がガラスび
ん口部内に形成される。 次にこの発明方法によつて成形したびんの実験
データを示す。 ・ ガイドプレート突条部21 長さH1…3.9mm 同 直径I1…12.2mm ・ 成形したびん口部内側の最小径部42
(Industrial Application Field) This invention relates to a method of forming a glass bottle opening.
In particular, the present invention relates to a method of forming a minimum diameter portion at a certain position inside the mouth of a glass bottle. (Prior Art) Glass bottles are generally formed by compressed air blowing processes called set blow and counter blow. However, aside from the external shape of the bottle, it has been extremely difficult to mold the internal shape of the bottle, particularly the internal shape of the bottle opening, into a predetermined designed shape. The causes of this are thought to be that the temperature of the glass changes locally depending on the degree of contact with each part of the mold, and that the flow of blow air (counter blow) is not constant. Conventionally, the shape of the inside of the bottle mouth has not been required to be very precise. The irregularity of the shape of the inside of the mouth of the bottle was usually compensated for by other conditions, for example, by using a gasket. (Problem to be solved by the invention) However, in recent years, various types of glass bottles have become required, and among these, the following types of bottles require strict specification of the inner shape of their mouths. is required. (b) Containers, such as carbonated drinks, whose contents are sealed with a sealing member pre-filled inside the bottle. (b) For example, cosmetic containers, where the shape of the inner plug for sealing is extremely complex, and it is strictly required to form a certain minimum diameter at a certain position inside the bottle mouth. The present invention was developed in view of these circumstances, and its purpose is to provide a method for forming a predetermined minimum diameter portion at a fixed position inside the bottle mouth. (Means for Solving the Problems) In order to achieve the above object, the present invention provides a guide plate of a mouth mold for forming a minimum diameter portion at a certain position inside the mouth of a glass bottle. This invention proposes a method for forming a glass bottle opening, which is characterized by forming a protrusion defining the minimum diameter inside the bottle opening, and performing the molding so that the protrusion is recessed into the bottle opening. be. (Function) In conventional glass bottle manufacturing methods, it was not required to form a minimum diameter portion at a certain position inside the bottle mouth, but in this invention, in order to realize such a request, Focusing on the use of a guide plate (finish guide plate) to form the mouth, a protrusion defining the minimum diameter part is formed on this guide plate, and the protrusion is inserted into the bottle mouth. The purpose is to mold the bottle by immersing it in the bottle, change the shape of the inside of the mouth of the glass bottle, adjust the elongation position of the glass, and finally form the desired minimum diameter part. (Example) Hereinafter, an example of the method of this invention will be described with reference to the attached drawings. FIG. 1 of the attached drawings is a cross-sectional view of the main part showing an example of bottle forming using a rough mold, and FIG. 2 is a sectional view of the mouth of a glass bottle. FIG. 3 is an enlarged sectional view of the main part of the guide plate. First, referring to FIG. 1, the shaping of the mouth of a glass bottle is usually done by primary blowing using a rough mold 10. Incidentally, after the first blowing shown in FIG. 1, the glass product (parison) is reversely moved to a finishing mold and formed into a final product by the second blowing. In FIG. 1, numeral 11 is a cavity, 12
20 is a guide plate (finish guide plate), 21 is a protrusion, 30 is a plunger, 31 is an air outlet of the plunger, 35 is a thimble, and 36 is a holder. In addition, in the figure, the left half of the figure represents a position 30A where the plunger 30 moves forward, and the right half represents a position 30B where the plunger 30 retreats and air is blown into it. FIG. 2 is a cross-sectional view of a main part of a carbonated beverage glass bottle 40 in which a minimum diameter portion 42 is formed at a certain position inside a mouth portion 41. This bottle 40 has a container structure in which the contents are sealed with a sealing member 49 sealed inside the bottle in advance.
Due to the sealing by the sealing member 49 and the opening by the device, it is required to form a minimum diameter portion 42 with a predetermined diameter I at a predetermined length H from the top surface of the bottle opening 41. . FIG. 3 is a cross-sectional view showing the main part of the mold for the bottle container described above, in which a protrusion 21 defining the minimum diameter inside the bottle mouth is formed on the guide plate 20 of the mouth mold. ing. This protrusion 2 is a guide plate 2 corresponding to the top surface of the bottle opening 41.
It is formed with a minimum diameter portion of a predetermined diameter I1 at a predetermined length H1 position from the recessed portion 23 of 0.0. Projection part 2
1 is preferably formed as an acute tapered portion as shown in the figure. By molding the guide plate 20 having such a protrusion 21 so as to be inserted into the bottle mouth, a desired minimum diameter portion 42 is formed in the glass bottle mouth. Next, experimental data for bottles molded by the method of this invention will be shown. - Guide plate protrusion 21 Length H1...3.9mm Same diameter I1...12.2mm - Minimum diameter part 42 inside the molded bottle mouth

【表】 上の実験データからわかるように、びん内部に
成形される最小径部42の長さHと直径Iは、ガ
イドプレート突条部21の長さH1および直径I1
よりも実際上わずかに(0.05〜0.25mm程度)大き
くなる傾向がある。この数値は成形条件、例えば
プランジヤの長さおよびその挿入時間等によつて
も異なるが、経験的に一定範囲内のものとするこ
とは可能で、許容範囲内のものとなるように成形
条件を整えればよい。 (効果) このように、この発明によれば、口部成形金型
のガイドプレートにびん口部内の最小径部を規定
する突条部を形成し該突条部をびん口部内に没入
するようにして成形を行なうことによつて、びん
口部内側の一定位置に所定の最小径部を形成する
ことができるようになつた。従つて、この発明は
近年におけるびん口部内側形状の特定の要請に対
して、十分対応することができたものである。
[Table] As can be seen from the experimental data above, the length H and diameter I of the minimum diameter portion 42 formed inside the bottle are the same as the length H1 and diameter I1 of the guide plate protrusion 21.
It actually tends to be slightly larger (about 0.05 to 0.25 mm) than the actual size. This value varies depending on the molding conditions, such as the length of the plunger and its insertion time, but it is possible to set it within a certain range empirically, and the molding conditions should be adjusted so that it is within the allowable range. All you have to do is fix it. (Effect) As described above, according to the present invention, the guide plate of the mouth mold is formed with a protrusion that defines the minimum diameter part within the bottle mouth, and the protrusion is recessed into the bottle mouth. By performing the molding process, it has become possible to form a predetermined minimum diameter portion at a fixed position inside the bottle mouth. Therefore, the present invention has been able to sufficiently respond to the specific demands for the inner shape of the bottle mouth in recent years.

【図面の簡単な説明】[Brief explanation of drawings]

添付の図面第1図は粗型によるびん成形の一例
を示す要部の断面図、第2図はガラスびん口部の
拡大断面図、第3図はガイドプレートの要部の拡
大断面図である。 10…粗型、11…キヤビテイ、12…口型、
20…ガイドプレート(フイニシユガイドプレー
ト)、21…突条部、30…プランジヤ、40…
びん、41…びん口部、42…最小径部。
The attached drawings Figure 1 is a sectional view of the main part showing an example of bottle molding using a rough mold, Figure 2 is an enlarged sectional view of the mouth of the glass bottle, and Figure 3 is an enlarged sectional view of the main part of the guide plate. . 10... Rough mold, 11... Cavity, 12... Mouth mold,
20...Guide plate (finish guide plate), 21...Protrusion portion, 30...Plunger, 40...
Bottle, 41...Bottle opening, 42...Minimum diameter part.

Claims (1)

【特許請求の範囲】 1 ガラスびん口部内側の一定位置に最小径部を
形成するに際して、口部成形金型のガイドプレー
トに前記びん口部内の最小径部を規定する突条部
を形成し該突条部をびん口部内に没入するように
して成形を行なうことを特徴とするガラスびん口
部の成形方法。 2 突条部が鋭角的なテーパ部として形成された
特許請求の範囲第1項記載のガラスびん口部の成
形方法。
[Scope of Claims] 1. When forming the minimum diameter part at a certain position inside the mouth of a glass bottle, a protrusion defining the minimum diameter part inside the mouth of the bottle is formed on a guide plate of the mouth mold. A method for molding a glass bottle opening, characterized in that the molding is carried out so that the protruding portion is recessed into the bottle opening. 2. The method of forming a glass bottle opening according to claim 1, wherein the protruding portion is formed as an acute tapered portion.
JP23949786A 1986-10-08 1986-10-08 Method for molding glass bottle neck Granted JPS63239131A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP23949786A JPS63239131A (en) 1986-10-08 1986-10-08 Method for molding glass bottle neck

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP23949786A JPS63239131A (en) 1986-10-08 1986-10-08 Method for molding glass bottle neck

Publications (2)

Publication Number Publication Date
JPS63239131A JPS63239131A (en) 1988-10-05
JPH021773B2 true JPH021773B2 (en) 1990-01-12

Family

ID=17045661

Family Applications (1)

Application Number Title Priority Date Filing Date
JP23949786A Granted JPS63239131A (en) 1986-10-08 1986-10-08 Method for molding glass bottle neck

Country Status (1)

Country Link
JP (1) JPS63239131A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04500484A (en) * 1988-09-09 1992-01-30 ローベルト ボッシュ ゲゼルシャフト ミット ベシュレンクテル ハフツング Automotive display device

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6933376B2 (en) * 2018-12-03 2021-09-08 日本耐酸壜工業株式会社 Manufacturing method of glass container and glass container

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1995276A (en) * 1931-10-21 1935-03-19 Hartford Empire Co Glass working apparatus and method
US2987854A (en) * 1957-11-27 1961-06-13 Owens Illinois Glass Co Method for forming neck finishes on glass containers

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04500484A (en) * 1988-09-09 1992-01-30 ローベルト ボッシュ ゲゼルシャフト ミット ベシュレンクテル ハフツング Automotive display device

Also Published As

Publication number Publication date
JPS63239131A (en) 1988-10-05

Similar Documents

Publication Publication Date Title
US3949033A (en) Method of making a blown plastic container having a multi-axially stretch oriented concave bottom
US5342663A (en) Preform for making a plastic can body
EP0870593B1 (en) Method for injection and stretch blow molding articles
JPS59207218A (en) Manufacture of temperature stabilizing vessel and blowing molding die
JPS62181130A (en) Process for molding hollow container with handgrip
US5840350A (en) Modified plastic bottle injection blow-molding apparatus and method
US3926324A (en) Plastic container for pressurized liquid
US3369690A (en) Plastic container with integral carrying handle
JPH01166930A (en) Manufacture of blow molded vessel from thermoplastic polyester
US4395378A (en) Method for making an injection stretch blow molded container with an integral tab
IE810166L (en) Moulding plastics material.
EP0074246A1 (en) Blow-moulded bottle-shaped container of biaxially oriented polyethylene terephthalate and piece to be blow-moulded into the same bottleshaped container
GB1508333A (en) Apparatus for making a partitioned bulbous-shape containe
US3359602A (en) Molds for manufacturing plastic bottles
US4317793A (en) Process for the production of oriented hollow bodies
CA1134112A (en) Method and apparatus of making molecularly oriented plastic bottles
GB1515714A (en) Method of and apparatus for making blown plastic articles
US6730259B1 (en) Method for stretch blow molding wide-mouthed container
JPH021773B2 (en)
US4588620A (en) Parison for making molecularly oriented plastic bottles
JPH04148915A (en) Injection and blow molding method of synthetic resin container
US4521369A (en) Method of making molecularly oriented plastic bottles
CN115284581B (en) Crystal-like low-gravity-center PET blow-molded bottle processing technology
JPH048214B2 (en)
JPH0535057B2 (en)