JPS5983612A - Apparatus for molding container made of thermoplastic resin - Google Patents
Apparatus for molding container made of thermoplastic resinInfo
- Publication number
- JPS5983612A JPS5983612A JP19347782A JP19347782A JPS5983612A JP S5983612 A JPS5983612 A JP S5983612A JP 19347782 A JP19347782 A JP 19347782A JP 19347782 A JP19347782 A JP 19347782A JP S5983612 A JPS5983612 A JP S5983612A
- Authority
- JP
- Japan
- Prior art keywords
- female mold
- container
- thermoplastic resin
- sheet
- diameter
- 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.)
- Pending
Links
Landscapes
- Moulds For Moulding Plastics Or The Like (AREA)
- Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は熱可塑性樹脂容器の成形装置に関する。更に詳
しくは、熱可塑性樹脂シートから熱成形により飲料缶等
に好適な樹脂容器を成形するための装置に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a molding apparatus for thermoplastic resin containers. More specifically, the present invention relates to an apparatus for molding a resin container suitable for a beverage can or the like from a thermoplastic resin sheet by thermoforming.
熱可塑性樹脂シートを加熱軟化して所要の型に押当て、
型と材料の間隙にある空気を排除し大気圧により型に密
着させて成形する***成形、大気圧以上の圧縮空気ある
いは真空を併用しで成形する圧空成形等の熱成形は、射
出成形、中空成形に比べ機械設備も型も比較的簡単なこ
とから、広く使用されている。熱成形法の一つであるプ
ラグアシスト成形法は、（１）肉厚の調整が出来る、（
ＩＩ）多数個取り成形でも隣接した成形品の影響がない
、（ｉｉｉ＞外面が精密に仕上る等の特徴を有しており
、カップ、冷蔵庫のドアライナー等の凹型成形品の大半
はこの方法により成形されている。The thermoplastic resin sheet is heated and softened and pressed into the desired mold.
Thermoforming methods include injection molding, hollow molding, and true main molding, in which the air in the gap between the mold and the material is eliminated and the material is molded in close contact with the mold using atmospheric pressure; It is widely used because the machinery and molds are relatively simple compared to molding. The plug assist molding method, which is one of the thermoforming methods, has the following advantages: (1) wall thickness can be adjusted;
II) There is no influence from adjacent molded products even in multi-cavity molding, and (iii) the outer surface can be precisely finished. Most concave molded products such as cups and refrigerator door liners are made by this method. Molded.
一方、清涼飲料水容器として従来のガラス瓶、金属缶の
代わりに耐衝撃性に優れ、且つ廃棄処理が金属缶に比べ
簡単な樹脂が提案され、特に最近では、光沢、高透明、
ガスバリアー性の良さから一部熱可塑性ポリエステル缶
が実角化されている。On the other hand, as a substitute for conventional glass bottles and metal cans as soft drink containers, resins have been proposed that have excellent impact resistance and are easier to dispose of than metal cans.
Some thermoplastic polyester cans have been made into commercial products due to their good gas barrier properties.
しかしながら従来のプラグアシスト成形法によって得ら
れる樹脂缶は、缶蓋の径と容量との関係から口径／深さ
が１ ／ １．５〜１／２といった深絞りとなり、また
その成形方法から必然的に、（１）口部が厚肉になり蓋
との巻締めが困難である、（ＩＩ）縦方向の配向度が大
きく、小さい衝撃でも縦割れを起こし易い、（ｉｉｉ）
缶胴部に比べ蓋の径が大きく、自動販売機にかかり難い
等との欠点を有しでいる。口部を薄肉にする成形方法と
して、樹脂シートの締めつけ部の内側半径Ｒを容器フラ
ンジの半径ｒの１．２ないし１．８倍にする方法（特開
昭５６−１３７９１７号）が提案されているが、該方法
では口部は薄肉になるものの、耐縦割れ性は改良されず
、蓋の径も缶胴部より小さくすることは出来ないし、又
プラグで軟化した樹脂シートを型内に押込む際に、型の
口部コーナーで樹脂シートがこすれ、製品表面に傷が付
きやすい等の問題がある。However, resin cans obtained by the conventional plug-assisted molding method are deep-drawn with a diameter/depth of 1/1.5 to 1/2 due to the relationship between the diameter and capacity of the can lid, and due to the molding method, (1) The mouth part is thick and it is difficult to seal it with the lid. (II) The degree of vertical orientation is large and even a small impact tends to cause vertical cracking. (iii)
The lid has a larger diameter than the can body, making it difficult to fit into a vending machine. As a molding method for making the mouth part thinner, a method has been proposed in which the inner radius R of the tightening part of the resin sheet is set to 1.2 to 1.8 times the radius r of the container flange (Japanese Patent Application Laid-Open No. 137917/1982). However, although this method makes the mouth part thinner, it does not improve vertical cracking resistance, the diameter of the lid cannot be made smaller than the can body, and the resin sheet softened by the plug cannot be pushed into the mold. When filling the mold, there are problems such as the resin sheet rubbing against the corner of the mouth of the mold and easily damaging the product surface.
本発明は上記問題点の解消を目的としたものであり、口
部の肉厚が薄く、巻締め可能であり、縦配向による亀裂
が生じに＜＜、シかも自動販売機にかかりやすい熱可塑
性プラスチック容器の成形装置を提供することにある。The present invention is aimed at solving the above-mentioned problems, and has a thin wall at the mouth, which can be tightened, and a thermoplastic material that is easily cracked due to vertical orientation and easily cracked in vending machines. An object of the present invention is to provide a molding device for plastic containers.
すなわち、本発明は熱可塑性樹脂シートから熱成形によ
り容器を成形するための装置において、該装置が対向す
・る一対の盤を備え、該盤の一方にはプラグ及び環状ク
ランプが同心的に設けられており、他方の盤の対向する
位置に雌型が設けられており、且つ該雌型口部」二面に
、閉時には雌型口部と同心的であって雌型の口部径より
も小さい内径の貫通孔を有する板を形成し、開時には前
記貫通孔を横断する切断線により分割し得て貫通孔の半
径方向に離合自在に設けた割り板側を具備していること
を特徴とする熱可塑性樹脂容器の成形装置である。That is, the present invention provides an apparatus for molding a container from a thermoplastic resin sheet by thermoforming, and the apparatus includes a pair of opposing plates, and one of the plates is provided with a plug and an annular clamp concentrically. A female die is provided at an opposing position on the other board, and a female die is provided on two sides of the female die opening, which is concentric with the female die opening when closed and is smaller than the diameter of the female die opening. It is characterized by forming a plate having a through hole with a small inner diameter, and having a split plate side that can be divided by a cutting line that crosses the through hole when opened and can be separated and separated in the radial direction of the through hole. This is a molding device for thermoplastic resin containers.
本発明の装置の実施例を図面に基き説明する。Embodiments of the device of the present invention will be described based on the drawings.
第１〜第６図は本発明の装置の一実施例を図示した概略
図である。1 to 6 are schematic diagrams illustrating an embodiment of the apparatus of the present invention.
本発明の成形装置は基本的には通常の熱可塑性樹脂のプ
ラグアシスト熱成形装置と同じく、上部盤１汲びそれと
対向して設けられた下部盤２を備えている。上部盤１お
よび／または下部盤２はトグルもしくは油圧機構等によ
り上下方向に可動可能に構設されている。尚、本明細書
における上下なる字句はあくまでも本発明の詳細な説明
するために相対的な位置関係を示したにすぎず、上下の
逆転したもの、あるいは一方の盤が円筒状をなし、他方
の盤が凹面状を成す場合等の態様もすべて本願明細書に
おける上下なる字句に包含する。The molding apparatus of the present invention is basically the same as a conventional plug-assist thermoforming apparatus for thermoplastic resin, and includes an upper plate 1 and a lower plate 2 provided opposite thereto. The upper panel 1 and/or the lower panel 2 are configured to be movable in the vertical direction by a toggle or a hydraulic mechanism. Note that the words "up and down" in this specification only indicate the relative positional relationship for the purpose of explaining the present invention in detail. In the present specification, the phrase "upper and lower" also includes all embodiments in which the disc has a concave shape.
上部盤１の下面にはプラグろ及びその外周に熱可塑性プ
ラスチックを固定するための環状クランプ４が同心的に
設けられている。プラグ６及び環状クランプ４は加圧流
体を利用した起動装置あるいはバネ等により、上部盤１
と独立して上下方向に延出しうるように構成されていて
もよい。プラグ６及び上部盤１には、通常圧力源（図示
せず）から加圧流体を圧入するための通路１０が穿設さ
れている。クランプ４は、下降して下部クランプと協動
して熱可塑性樹脂シート１１を把持した際クランプ４と
シート１１と上部盤１とで形成される空間が密封されう
るような構造になっていることが好ましい。A plug slot and an annular clamp 4 for fixing a thermoplastic on its outer periphery are concentrically provided on the lower surface of the upper board 1. The plug 6 and the annular clamp 4 are connected to the upper panel 1 by a starting device using pressurized fluid or by a spring.
It may be configured so that it can extend in the vertical direction independently of the above. The plug 6 and the upper panel 1 are provided with a passage 10 for pressurizing fluid therein from a normal pressure source (not shown). The clamp 4 has a structure such that when it descends and grips the thermoplastic resin sheet 11 in cooperation with the lower clamp, the space formed by the clamp 4, the sheet 11, and the upper plate 1 can be sealed. is preferred.
下部盤２の土面輪は、前記プラグに対向した位置に雌型
５が固設されている。雌型５には成形する容器に相当し
た形状の空間６が凹設されている。A female die 5 is fixed to the soil ring of the lower board 2 at a position opposite to the plug. A space 6 having a shape corresponding to the container to be molded is recessed in the female mold 5.
雌型５には成形時に空間６内を減圧にすべく減圧装置（
図示せず）に連通した通路１２が穿設されている。また
雌型５内には必要に応じて冷却水通路（図示せず）が設
けられていてもよい。また成形品を離型させるために底
部に圧力流体吹出口又は押し出し機構（いずれも図示せ
ず）が設けられていてもよい。The female mold 5 is equipped with a pressure reducing device (
A passageway 12 is drilled in communication with the main body (not shown). Further, a cooling water passage (not shown) may be provided in the female mold 5 as necessary. Further, a pressure fluid outlet or an extrusion mechanism (both not shown) may be provided at the bottom to release the molded product.
本発明の装置は雌型口部１３の上面に割り板刃７を設け
たことを特徴とする。割り板刃７は第１の実施例におい
ては第５図に、第２の実施例においては第５図に示した
如く、閉じた状態では雌型口部と同心的な貫通孔８が穿
設された一体的な板を形成する。該板の厚さは成形され
る容器の口径、形状によっても異なるが通常１０ｍｍ以
下、好ましくは５ｍｍ以下である。The device of the present invention is characterized in that a split plate blade 7 is provided on the upper surface of the female mold opening 13. As shown in FIG. 5 in the first embodiment and in FIG. 5 in the second embodiment, the split plate blade 7 has a through hole 8 that is concentric with the female mold opening in the closed state. form an integral board. The thickness of the plate varies depending on the diameter and shape of the container to be molded, but is usually 10 mm or less, preferably 5 mm or less.
割り板刃７で形成される貫通孔８は雌型５の口部１３の
径よりも小さい内径を有する。尚、本明細書における孔
、あるいは環状とは、必ずしも円形の形状のみに限定さ
れるものではなく、円形以外に成形品の口部の形状に応
じて四角形、楕円形等の種々の形状のものを包含する。The through hole 8 formed by the split plate blade 7 has an inner diameter smaller than the diameter of the mouth 13 of the female mold 5. Note that the term "hole" or "annular shape" in this specification is not necessarily limited to a circular shape, and may include various shapes other than a circle, such as a square or an ellipse, depending on the shape of the mouth of the molded product. includes.
また、内径という用語も単に円孔の直径を意味するのみ
ならず、種々の形状の相似形の大きさをも意味するもの
とする。Furthermore, the term "inner diameter" does not simply mean the diameter of a circular hole, but also means the size of similar shapes of various shapes.
割り板刃７は開いた際、貫通孔８を横断する切断線９に
より２つもしくは多数の板に分割される（第４図、第６
図）。分割された割り板刃７は、通常貫通孔となる切欠
き１２が刻設された縦または横方向に延在した帯状体を
呈する。割り板刃７は成形された容器１５を貫通孔８か
ら脱離するのに容易なように貫通孔の半径方向に互いに
離合しうるように構成すべきである。When the split plate blade 7 is opened, it is divided into two or many plates by a cutting line 9 that crosses the through hole 8 (Figs. 4 and 6).
figure). The divided split plate blade 7 usually has a strip-shaped body extending in the vertical or horizontal direction and having a notch 12 that serves as a through hole. The split plate blades 7 should be configured so that they can be separated from each other in the radial direction of the through-hole so that the molded container 15 can be easily removed from the through-hole 8.
割り板刃７は、両側縁部を棒１７に遊貫せしめておくと
割り板刃７の一体的な移動もしくは協動した開閉が容易
であるため好ましい。It is preferable that the split plate blades 7 have both side edges loosely passed through the rods 17 because this facilitates integral movement of the split plate blades 7 or cooperative opening and closing.
割り板刃７は開いた状態では形成される空隙１８が雌型
５の口部１３よりも外側に位置するように装設されてい
る（第４図、第６図）。このような割り板刃７の開閉は
エアシリンダーもしくはオイルシリンダーの如き加圧流
体を利用した起動装置もしくはトグル（いずれも図示せ
ず）等により駆動せしめるようになっていてもよい。起
動装置はそれぞれの割り板を起動さし得てもよく・１つ
の起動装置により複数もしくは全部の割り板刃が協動し
うるようになされていてもよい。The split plate blade 7 is installed so that the gap 18 formed in the open state is located outside the mouth 13 of the female mold 5 (FIGS. 4 and 6). The opening and closing of the split plate blade 7 may be driven by a starter device using pressurized fluid such as an air cylinder or an oil cylinder, or a toggle (none of which is shown). The activation device may be capable of activating each of the split plates, and one activation device may be configured to allow a plurality or all of the split plate blades to work together.
割り板刃７は、雌型口部１３の上部に設けられるべきで
あるが、必ずしも雌型に緊着されている必要はなく、雌
型と協動せず、例えば一体的に水平方向に往復動しうる
ようになっていてもよい。The split plate blade 7 should be provided at the upper part of the female mold opening 13, but it does not necessarily have to be tightly attached to the female mold, and it does not cooperate with the female mold, for example, it can reciprocate in the horizontal direction integrally. It may be movable.
この場合、割り板刃７は、１つの装置に１組のみならず
２つ以上の複数の組が並設されていてもよい。In this case, not only one set of split plate blades 7 but also two or more sets of split plate blades 7 may be arranged in parallel in one device.
この様に２つ以上の組の割り板刃７を設けると、成形に
要する時間が短縮できるため好ましい。割り板刃は前記
のように装置内外を水平方向に動かずことにより、それ
自体に容器の搬出装置としての機能を持たすことができ
る。It is preferable to provide two or more sets of split plate blades 7 in this way because the time required for forming can be shortened. By not moving horizontally inside or outside the device as described above, the splitting blade itself can function as a container carrying-out device.
第１図に示した本発明の装置の実施例では成形時に熱可
塑性樹脂シート１１を環状クランプ４の下面を割り板刃
７、切り欠きクランプ部１６とで挾持固定しうるように
なっているが、割り板刃の代りに他のクランプ治具で挾
持しうるように設けていてもよい。In the embodiment of the apparatus of the present invention shown in FIG. 1, the thermoplastic resin sheet 11 can be clamped and fixed by the lower surface of the annular clamp 4 between the split plate blade 7 and the notched clamp part 16 during molding. , it may be provided so that it can be clamped with another clamp jig instead of the split plate blade.
次に本発明の装置を用いた熱可塑性樹脂容器の成形方法
について述べる。Next, a method for molding a thermoplastic resin container using the apparatus of the present invention will be described.
本発明の装置で容器を成形するには、押出され冷却固化
された熱可塑性樹脂シートもしくは該シートを一旦巻き
取ったロール、又は切断された枚葉を本発明の装置のプ
ラグと雌型の間に供給する。To mold a container using the apparatus of the present invention, an extruded and cooled thermoplastic resin sheet, a roll of the sheet, or a cut sheet is placed between the plug of the apparatus of the present invention and the female mold. supply to.
本発明に用いる熱可塑性樹脂シートとは、具体的には例
えばポリエチレン、ポリブロヒッン、ポリブテン、ポリ
４−メチル−１−ペンテン及びエチレン・酢酸ビニル共
重合体等のポリオレフィン、ポリ塩化ビニル、ふっ素ｍ
脂、ポリスチレン、ポリビニルアセタール及びポリメ
タクル酸メチル等のポリビニル化合物、ナイロン−６、
ナイロン−６，６、ナイロン−６，１０，ナイロン−６
，１２、ナイロン−１１及びナイロン−１２等のポリア
ミド、ポリエチレンテレフタレート、ポリブチレンテレ
フタレート及びポリエチレンイソフタレート・テレフタ
レー） 共ｉ合体等のポリエステル、ポリアクリロニト
リル、ポリカーボネート、ポ°リイミド及びＡＢＳ等の
熱可塑性樹脂を押出成形、圧縮成形、射出成形等をする
ことにより得られるシート状もしくはフィルム状のもの
である。前記熱可塑性樹脂の中では、剛性、透明性、耐
ガス透過性の点及び熱成形性が優れている点からポリエ
チレンテレフタレート、′ポリブチレンテレフタレート
、ポリエチレンイソフタレート・テレフタレート共重合
体等のポリエステルが好ましい。The thermoplastic resin sheet used in the present invention specifically includes polyolefins such as polyethylene, polybrohine, polybutene, poly4-methyl-1-pentene, and ethylene/vinyl acetate copolymers, polyvinyl chloride, fluorine m
polyvinyl compounds such as oil, polystyrene, polyvinyl acetal and polymethyl methacrylate, nylon-6,
Nylon-6,6, Nylon-6,10, Nylon-6
, 12, polyamides such as nylon-11 and nylon-12, polyethylene terephthalate, polybutylene terephthalate, and polyethylene isophthalate/terephthalate), polyesters such as co-merged, polyacrylonitrile, polycarbonate, polyimide, and thermoplastic resins such as ABS. It is in the form of a sheet or film obtained by extrusion molding, compression molding, injection molding, etc. Among the thermoplastic resins, polyesters such as polyethylene terephthalate, polybutylene terephthalate, and polyethylene isophthalate/terephthalate copolymers are preferred from the viewpoint of rigidity, transparency, gas permeation resistance, and thermoformability. .
本発明の装置を用いる成形方法は、前記熱可塑性樹脂シ
ート１１を供給後もしくは供給前にヒーター等で熱成形
しうるほどに加熱する。次に、環状クランプ４とクラン
プ部１６により前記シート１１を把持する。その後プラ
グ好ましくは雌型口部の径に対して０．６ないし０．８
倍の径を有するプラグ６により前記シート１１を雌型口
部１５の径より小さい内径、好ましくは０．８ないし０
．９５倍小さい内径を有する割り仮死７で形成される孔
８を貫通して雌型空間６内に突き伸ばした後、雌型５と
シート１１との間の空気を通路１２より排出し、更に通
路１０を通して圧力源から加圧流体を空間６内に圧入し
、シート１１を雌型に密着させて容器を成形し、次いで
プラグ及び上部クランプを上昇させ、次に雌型を下降さ
せた後、前記割り仮死７を開いて容器を取り出す方法で
ある。尚、第５図に示した如く割り仮死が３枚以上から
なっている場合、成形後割り仮死を開く前にトリミング
を行って、シートの残余と容器とを分離しておく必要が
ある。In the molding method using the apparatus of the present invention, the thermoplastic resin sheet 11 is heated with a heater or the like to the extent that it can be thermoformed after or before being supplied. Next, the sheet 11 is gripped by the annular clamp 4 and the clamp part 16. Then plug preferably 0.6 to 0.8 with respect to the female mouth diameter.
The seat 11 is inserted into the seat 11 with an inner diameter smaller than the diameter of the female mouth 15, preferably between 0.8 and 0.
．． After penetrating the hole 8 formed by the asphyxia 7 having an inner diameter 95 times smaller and extending it into the female mold space 6, the air between the female mold 5 and the sheet 11 is discharged from the passage 12, and then the passage Pressurized fluid is forced into the space 6 from a pressure source through 10, the sheet 11 is brought into close contact with the female mold to form a container, then the plug and the upper clamp are raised, then the female mold is lowered, and then the This is a method of opening the asphyxia 7 and taking out the container. If the split asphyxia consists of three or more sheets as shown in FIG. 5, it is necessary to trim the remaining sheets and the container before opening the split asphyxia after molding.
本発明の装置では雌型口部の径より小さい内径の貫通孔
８を有する割り仮死７を用いて熱成形するので、容器の
口部径が容器胴部の径に比べて小さい、ずなろちネッキ
ング構造の容器が得られ金属ぶたを被せて巻締してもふ
たの部分が容器胴部からはみ出ることがなく、自動販売
機にかかる。In the apparatus of the present invention, thermoforming is performed using a split asphyxia 7 having a through hole 8 with an inner diameter smaller than the diameter of the female mold opening, so the opening diameter of the container is smaller than the diameter of the container body. A container having a necking structure is obtained, and even when a metal lid is covered and tightened, the lid part does not protrude from the container body, and the container is hung in a vending machine.
割り仮死の表面に熱伝導性の悪い素材を用いることによ
り、口部も十分に延伸されるため、薄肉とすることがで
きる。従って、前記した方法により成形された容器から
公知の抜き型によるトリミングを行った製品は、巻締部
が薄肉であるため、容易に巻締めすることができる。By using a material with poor thermal conductivity on the surface of the split asphyxia, the mouth part can also be sufficiently stretched, so it can be made thin. Therefore, a product obtained by trimming a container formed by the above-described method using a known cutting die can be easily seamed because the seaming portion is thin.
また本発明の装置によれば、容器の径に比べ、比較的小
さいプラグでシートを雌型内に押し込んだ後吹込成形法
と類似の方法で加圧流体によりシートを二軸的に延伸成
形できるため、得られた容器の強度は公知の熱成形装置
で得られるものに比べ大きくなる。Furthermore, according to the apparatus of the present invention, the sheet can be biaxially stretch-formed using a pressurized fluid in a method similar to blow molding after the sheet is pushed into a female mold with a plug that is relatively small compared to the diameter of the container. Therefore, the strength of the container obtained is greater than that obtained with known thermoforming equipment.
本発明の装置では、雌型上部の割り仮死７のみを開閉自
在にしたため、雌型全体を割り型にした装置に比して特
に多数個取りにした場合、装置及び作動が簡易である点
で有利である。In the device of the present invention, only the split asphyxia 7 at the top of the female mold can be opened and closed, so compared to a device in which the entire female mold is made into a split mold, the device and operation are simpler, especially when making a large number of molds. It's advantageous.
本発明の装置では、各種形状の容器が成形可能であるけ
れども、特に、２５０ｍ１あるいは３５０ｍｊ？といっ
た飲料用金属缶の代替容器等の深絞り容器の成形に好適
である。Although containers of various shapes can be molded using the apparatus of the present invention, in particular containers of 250 m1 or 350 mj? It is suitable for forming deep-drawn containers such as substitute containers for metal beverage cans.
第１図は、本発明の装置の割り仮死が開いた状態の１実
施例の概略を示した断面図である。第２図は、第１図の
装置の割り仮死が閉じた状態の態様を示した断面図であ
る。第６図は、第１図の装置の要部を示した平面図であ
る。第４図は、第２図の装置の要部を示した平面図であ
る。第５図及び第６図は、本発明の装置のうち、多数個
取りの装置の要部を示した平面図である。
出願人 三井石油化学工業株式会社
代理人 山 口 和
第１図
第２図
第３図
ン
第４図
１０ １３FIG. 1 is a sectional view schematically showing an embodiment of the device of the present invention in an open state. FIG. 2 is a sectional view showing the device of FIG. 1 in a closed state. FIG. 6 is a plan view showing essential parts of the apparatus shown in FIG. 1. FIG. 4 is a plan view showing essential parts of the apparatus shown in FIG. 2. 5 and 6 are plan views showing essential parts of a multi-cavity device among the devices of the present invention. Applicant Mitsui Petrochemical Industries Co., Ltd. Agent Kazu Yamaguchi Figure 1 Figure 2 Figure 3 Figure 4 10 13
Claims (1)
成形するための装置において、該装置が対向する一対の
盤を備え、該盤の一方にはプラグ及び環状クランプが設
けられており、他方の盤の対向する位置に雌型が設けら
れており、且つ該雌型口部」二面に閉時には雌型口部と
同心的であって、雌型の口部径よりも小さい内径の貫通
孔を有する板を形成し、閉時には前記貫通孔を横断する
切断線により分割し得て貫通孔の半径方向に離合自在に
設けた割り板列を具備していることを特徴とする熱可塑
性樹脂容器の成形装置。 （２）前記熱可塑性樹脂が熱可塑性ポリエステルである
ことを特徴とする特許請求の範囲第１項記載の装置。 （３）前記容器が缶用容器であることを特徴とする特許
請求の範囲第１項記載の装置。 （４）前記容器が口部径と深さの比が１以下の探しぼり
容器であることを特徴とする特許請求の範囲第１項記載
の装置。 （５）割り板列のそれぞれが分割線にそって貫通孔を２
等分した形の切欠き部が刻設された、帯状体からなるこ
とを特徴とする特許請求の範囲第１項記載の装置。 （６）割り板列が加圧流体を利用した起動装置により可
動しうるように設けられていることを特徴とする特許請
求の範囲第１項記載の装置。[Claims] (1) An apparatus for forming a container from a thermoplastic resin sheet by thermoforming, the apparatus comprising a pair of opposing plates, one of which is provided with a plug and an annular clamp. A female mold is provided at an opposing position on the other board, and the female mold opening is concentric with the female mold opening when closed on two sides, and has a diameter larger than the opening diameter of the female mold. It is characterized by forming a plate having a through hole with a small inner diameter, and having a row of split plates that can be divided by a cutting line that crosses the through hole when closed and can be separated and separated in the radial direction of the through hole. (2) The apparatus according to claim 1, wherein the thermoplastic resin is thermoplastic polyester. (3) The container is a can container. The apparatus according to claim 1, characterized in that: (4) the container is a search container having a mouth diameter to depth ratio of 1 or less; The device described. (5) Each split plate row has two through holes along the dividing line.
2. The device according to claim 1, characterized in that it consists of a strip-shaped body in which cut-outs in the form of equal parts are cut out. (6) The device according to claim 1, wherein the split plate row is provided so as to be movable by an activation device using pressurized fluid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19347782A JPS5983612A (en) | 1982-11-05 | 1982-11-05 | Apparatus for molding container made of thermoplastic resin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19347782A JPS5983612A (en) | 1982-11-05 | 1982-11-05 | Apparatus for molding container made of thermoplastic resin |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5983612A true JPS5983612A (en) | 1984-05-15 |
Family
ID=16308666
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19347782A Pending JPS5983612A (en) | 1982-11-05 | 1982-11-05 | Apparatus for molding container made of thermoplastic resin |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5983612A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108136470A (en) * | 2015-09-25 | 2018-06-08 | 特斯拉公司 | High speed blowing process |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4840858A (en) * | 1971-09-23 | 1973-06-15 |
-
1982
- 1982-11-05 JP JP19347782A patent/JPS5983612A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4840858A (en) * | 1971-09-23 | 1973-06-15 |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108136470A (en) * | 2015-09-25 | 2018-06-08 | 特斯拉公司 | High speed blowing process |
| CN108136470B (en) * | 2015-09-25 | 2020-03-20 | 特斯拉公司 | High-speed blow molding process |
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