JPS60141523A - Method of heating primary molded item of biaxially orientated and blow molded wide-mouthed bottle - Google Patents

Method of heating primary molded item of biaxially orientated and blow molded wide-mouthed bottle

Info

Publication number
JPS60141523A
JPS60141523A JP58249915A JP24991583A JPS60141523A JP S60141523 A JPS60141523 A JP S60141523A JP 58249915 A JP58249915 A JP 58249915A JP 24991583 A JP24991583 A JP 24991583A JP S60141523 A JPS60141523 A JP S60141523A
Authority
JP
Japan
Prior art keywords
heater
main body
heat
molded product
primary molded
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.)
Granted
Application number
JP58249915A
Other languages
Japanese (ja)
Other versions
JPH0425132B2 (en
Inventor
Hiroaki Sugiura
杉浦　弘章
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.)
Yoshino Kogyosho Co Ltd
Original Assignee
Yoshino Kogyosho Co Ltd
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 Yoshino Kogyosho Co Ltd filed Critical Yoshino Kogyosho Co Ltd
Priority to JP58249915A priority Critical patent/JPS60141523A/en
Priority to US06/672,670 priority patent/US4641758A/en
Priority to DE8484308092T priority patent/DE3477365D1/en
Priority to EP84308092A priority patent/EP0144196B1/en
Priority to CA000468355A priority patent/CA1233422A/en
Priority to EP19870106939 priority patent/EP0240037B1/en
Priority to DE87106939T priority patent/DE3486209T2/en
Priority to AU35793/84A priority patent/AU579842B2/en
Publication of JPS60141523A publication Critical patent/JPS60141523A/en
Priority to CA000555985A priority patent/CA1255062A/en
Publication of JPH0425132B2 publication Critical patent/JPH0425132B2/ja
Granted legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D1/00—Containers having bodies formed in one piece, e.g. by casting metallic material, by moulding plastics, by blowing vitreous material, by throwing ceramic material, by moulding pulped fibrous material, by deep-drawing operations performed on sheet material
    • B65D1/10—Jars, e.g. for preserving foodstuffs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B29C49/02—Combined blow-moulding and manufacture of the preform or the parison
    • B29C49/06—Injection blow-moulding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B29C49/42—Component parts, details or accessories; Auxiliary operations
    • B29C49/64—Heating or cooling preforms, parisons or blown articles
    • B29C49/6409—Thermal conditioning of preforms
    • B29C49/6436—Thermal conditioning of preforms characterised by temperature differential
    • B29C49/6445—Thermal conditioning of preforms characterised by temperature differential through the preform length
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B29C49/02—Combined blow-moulding and manufacture of the preform or the parison
    • B29C2049/023—Combined blow-moulding and manufacture of the preform or the parison using inherent heat of the preform, i.e. 1 step blow moulding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B29C49/08—Biaxial stretching during blow-moulding
    • B29C49/10—Biaxial stretching during blow-moulding using mechanical means for prestretching
    • B29C49/12—Stretching rods
    • 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
    • B29L2031/7132—Bowls, Cups, Glasses
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/712—Containers; Packaging elements or accessories, Packages
    • B29L2031/7158—Bottles
    • B29L2031/716—Bottles of the wide mouth type, i.e. the diameters of the bottle opening and its body are substantially identical

Abstract

PURPOSE:To form a uniform, biaxially orientated and blow molded wide- mouthed bottle, by uniformly heating and stretching in a toroidal manner a primarily molded wide-mouthed bottle, before it is biaxially orientated, using heat rays passed through a slit from a heater while the bottle being rotated. CONSTITUTION:A primarily molded item 1 is secured to a prescribed jig 4 with the upside down to fit to an opening 3. A heat screening plate having a slit 7 is positioned over it with a prescribed space between them, and a heater 5 is positioned over it with a prescribed space between the heater 5 and the heat screening plate 6. The jig 4 and the heater 5 are relatively rotated and the primarily molded item is heated in a toroidal manner. The heat of the heated item is radiated uniformly to a central section 2b and a peripheral section 2a. Then the item is blow molded and biaxially orientated. Thus, a uniform, biaxially orientated and blow molded wide-mouthed bottle can be obtained.

Description

【発明の詳細な説明】 本発明は、２軸延伸ブロー成形広口Ｉｙ、（体の一次成
形品加熱方法にＮするもので２式らに評言すれば、延伸
ブロー成形直前における一次成形品全体を均一かつ適度
に加熱できるようにすることを目的とする。DETAILED DESCRIPTION OF THE INVENTION The present invention is a biaxial stretch blow molding wide-mouth Iy (N) method for heating a primary molded product. The purpose is to heat evenly and appropriately.

培体の２軸延伸ブロー成形力法に凸つでは、延伸ブロー
成形に先立って一次成形品を所定篇瓜ＶＣ熱し、延伸し
やすくしておかなければ々らない。When using the force method for biaxial stretch blow molding of culture media, it is necessary to heat the primary molded product to a certain degree of VC prior to stretch blow molding to make it easier to stretch.

従来の通常の培体に用いられる一次成形品は有底円筒形
状であるので、ヒーターで熱しながら例えばコンベア上
全転動式ぜるだけでｊ夕ｊｊυｊの目的が達成せられた
。Since the primary molded product used in the conventional culture medium has a cylindrical shape with a bottom, the purpose was achieved simply by heating it with a heater and, for example, rolling it all over a conveyor.

ところで、広口樹体を２軸延伸ブロー成形する場合の一
次成形品として１円イシ形状の本体部周縁に短筒形状の
一部全周設した皿形状の製品が開発さ扛ている。Incidentally, a dish-shaped product has been developed as a primary molded product for biaxial stretch blow molding of a wide-mouthed wood body, in which a short cylinder shape is partially provided all around the periphery of a circular stone-shaped main body.

このような構成の一次成形品に８つでは、−次成形品を
所定の治具上に載置し２本体部をヒーター等により熱す
ることになるのであるか１例えは上記円形状の本体Ｉｓ
全全体ヒーターの熱を均Ａ１Ｊに照射すると１本体部の
周端部と中央部との放熱程度の差によって、本体部の周
端部に比べて、本体部の中央部の昇温速度がけるかに人
きく、これかため加熱された一次成形品全体の加熱分布
展伸が。If there are 8 primary molded products with such a configuration, the 2nd molded product will be placed on a predetermined jig and the 2 main body parts will be heated with a heater or the like. Is
When the heat from all the heaters is uniformly applied to A1J, the temperature rises faster in the center of the main body than in the peripheral ends due to the difference in heat dissipation between the peripheral edges and the center of the main body. The heating distribution spreads throughout the primary molded product, which is heated tightly.

１シめで熱分布の不均一な状態となってし甘うことにガ
る、 第１図は一次成形品の温度分布を示すものにして、横軸
に一次成形品の直径断面位置、縦軸に温度をとったもの
であり、グラフＡ線は上述した手段により熱した場合の
温度分布特性を示すものである。Figure 1 shows the temperature distribution of the primary molded product, and the horizontal axis is the diametric cross-sectional position of the primary molded product, and the vertical axis is , and the graph line A shows the temperature distribution characteristics when heated by the above-mentioned means.

ここでは１本体部の中心部が１２０℃近くに首で熱せら
れるのに対し、周縁部では１００℃程度に゛まてしかな
らず、温度分イｂが甚だ不均一であってイ）効な延伸ブ
ローを達成することができない。Here, while the center of the main body is heated to nearly 120°C by the neck, the temperature at the periphery is only about 100°C, and the temperature (b) is extremely uneven, making it difficult to stretch effectively. Unable to achieve blow.

このように、−次成形品が不均一に力り熱はれると、成
形品に偏肉が発生したり、所望の肉厚コン１−　Ｄ−ル
が不可能とな９．でらに延伸による特゛［屯ケ均一に発
揮させることができなくなるという欠点かめつｆ−８ 本発明は上述した欠点を解決するべく創案てれター次成
形品の加熱方法に関するもので８す、治具に固定てれた
皿形状の一次成形品の本体部にあって、放熱程度の大き
い周縁部と放熱程度のホブい中央部とのほぼ境界部分で
ある周縁部附近を。In this way, if the next molded product is strained and heated unevenly, uneven thickness may occur in the molded product, or it may not be possible to form the desired wall thickness.9. Furthermore, the disadvantage of not being able to exhibit uniform properties due to stretching is f-8.The present invention relates to a heating method for a tar-formed product devised to solve the above-mentioned disadvantages. , near the periphery of the main body of the dish-shaped primary molded product fixed to the jig, which is the approximate boundary between the periphery with a large degree of heat dissipation and the hobbed central part with a high degree of heat dissipation.

ヒーターを介して輻射力り熱して、治具とヒーターとを
相対的に回転式せ１本体部を均一に熱するようにしたも
のである、 以下本発明の一実施例を図面に従ってβ１１明する。An embodiment of the present invention will be described below with reference to the drawings.The jig and heater are rotated relative to each other to uniformly heat the main body of the device by applying radiant heat through a heater. .

第２図は本発明にて力ロ熱しようとする熱可塑性合成樹
脂製の一次成形品１に示すものにして２円板形状の本体
部２周縁に短筒形状の口部３　ｆ一体膜した（１１４成
でるる。Fig. 2 shows a primary molded product 1 made of thermoplastic synthetic resin that is to be heated by force in the present invention, and has a main body portion 2 in the shape of a disc, and a short cylindrical mouth portion 3 f integrally formed on the periphery. (114 Naruru.

上記−次成形品ｌは、伏せた姿勢で口部３治・嵌込む状
態で所定の治具４に固定され、治具４に嵌込１れた一次
成形品１の本体部２に対向してフートを有するヒーター
５が所定間隔離れて位置し。The above-mentioned secondary molded product 1 is fixed to a predetermined jig 4 in a state where the mouth part 3 is fixed and fitted in a face down position, and is opposed to the main body part 2 of the primary molded product 1 that is fitted into the jig 4. Heaters 5 each having a foot are located at a predetermined distance apart.

治具４とヒーター５とは相対的に回転する。The jig 4 and the heater 5 rotate relative to each other.

そして治具４とヒーター５との間における所定位置には
遮熱板６が配置てれており、８らにこの遮熱板６には所
定直径の略リング状となった７Ｖ１足幅ノスリソト７が
設けられている。A heat shield plate 6 is arranged at a predetermined position between the jig 4 and the heater 5, and the heat shield plate 6 is provided with a 7V1 foot width nosurisoto 7 having a substantially ring shape with a predetermined diameter. is provided.

従って治具４とヒーター５と全相対的に回転させながら
ヒーター５の熱をスリット７苓通して治具４の一次成形
品１の本体部２に輻射カロ熱し２本体部２を熱するので
ろる。Therefore, while rotating the jig 4 and the heater 5 relative to each other, the heat from the heater 5 passes through the slit 7 and is radiated to the main body 2 of the primary molded product 1 of the jig 4, thereby heating the main body 2. Ru.

本体部２に対する熱の照射位ｆＦｉは１本体部２の放熱
程度の大きい周縁部２ａと、放熱イア度の小さい中央部
２ｂとのほぼ境界ＨＵＢ分でろる周鉾°１１部２Ｃであ
り、周縁部２ａの湿度上昇速度を中火部２ｂＬＪ）福１
度上昇速度とほぼ等しくするようにし、もって本体部２
全体がほぼ均一な６１品度で加熱されるようにしている
ので必る。The heat irradiation position fFi to the main body part 2 is approximately the boundary HUB between the peripheral part 2a of the main body part 2 with a high degree of heat radiation and the central part 2b with a low degree of heat radiation. Adjust the humidity increase rate in part 2a to medium heat part 2bLJ) Fuku 1
The rate of increase in temperature is approximately equal to the rate of increase in the temperature of the main body.
This is necessary because the entire area is heated at an almost uniform level of 61 degrees.

それゆえに、治具４とヒーター５との相互間隔。Therefore, the mutual spacing between the jig 4 and the heater 5.

遮熱板６のスリンｌ−７の直径へ９は、ヒーター５の熱
か上記本体部２の所定位置に輻射加熱できるよう（ＩＣ
Ｈ定され、ヒーター５による照射熱量、照射１１、ｌ、
１ｊｌ　／Ｈ（、ｙも１本体部２の０１望温度に対１．
ｃ、＝　して設定式れる、 第５図は本体８１Ｓ２における熱の伝達状態を示すもの
にして、ヒーター５の熱は２　ヒーター５と治具４の相
対的回転によりスリット７に沿ったリング状に周９ｉ！
ｉ！部２Ｃに周方向に沿って均一に照射てれ、周娼都２
Ｃの熱は、一方では中火部２ｂ方向に放射状に伝達蓄熱
きれ、他方でげ周縁部２ａ方向に放射状に伝達され１周
縁から放熱はれるととに外る、捷だ第６図は他の実施例
を示すものにして、遮熱板６と治具４どの間に、本体部
２と：Ｉｌ＋心を一致てせて凸レンズ８が配８れており
、スリット７苓−通過した熱を１本体）郭２の所定周鰯
１部２Ｃに集めることができるようになっている、 従って１本体部２への照射位ｉｉ’ｎ　ｉ・ｆ７ｉ１単
に設定できる。The diameter of the sulin l-7 of the heat shield plate 6 is set so that heat from the heater 5 can radiate heat to a predetermined position of the main body 2 (IC).
H is determined, the amount of heat irradiated by the heater 5, the irradiation 11, l,
1jl/H(,y is also 1.01 desired temperature of main body part 2).
c, = Figure 5 shows the state of heat transfer in the main body 81S2. Zhou 9i!
i! Evenly irradiate part 2C along the circumferential direction,
On the one hand, the heat of C is radially transmitted and stored in the direction of the medium heat section 2b, and on the other hand, it is transmitted radially in the direction of the rim 2a, and the heat is radiated from one periphery and then released. In this embodiment, a convex lens 8 is disposed between the heat shield plate 6 and the jig 4, with the center aligned with the main body 2, and the heat passing through the slit 7 is absorbed. 1) The sardines can be collected at a predetermined circumference of the sardine 2 in the 1 part 2C of the body 2. Therefore, the irradiation position to the 1 main body 2 can be simply set.

よって本発明の一次成形品加熱り〕法によれば。Therefore, according to the method of heating the primary molded product of the present invention.

円板形状の本体部周縁に短筒形状の口部を一住設した２
軸延伸ブロ一成形広口壜休用の一次成形品における本体
部’、ｒ−２ｊｌｌｉｌｌ延伸ブローに先立って均一か
つ適正な巴１肚に熱することができ、それゆえに極めて
簡単かつ正確に広［１壜体台″ブロー成形することがで
き、構Ｊ戊が簡ｔ１１．でろって操作も容易である等１
本発明は多くの優れた作用効果をイ〕する。2. A short cylinder-shaped opening is provided around the periphery of the disc-shaped main body.
The main body part of the primary molded product for wide-mouth bottle molding by axial stretch blowing can be uniformly and properly heated to 1° prior to stretching blowing. The bottle base can be blow molded, and the structure is simple and easy to operate.1
The present invention has many excellent effects.

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

第１図は一次成形品の温度分布な・ノ」・すグラフ図で
ある。 第２図は一次成形品の断面図で必る。 第３図は本発明の一実施例？示す断面図′７′ある。 第４図は遮熱板の平面図である、 第５図は一次成形品の福３度分布状態を示す平面図でろ
る。 第６図は本発明の他の実施例を示す断面図でｈる。 打上の説明 ｌ；−次成形品、２；本体部２４；治具、５；ヒーター
、６；遮熱板、７；スリット％　８；凸レンズ、 出　願　人　株式会社吉野工業所 アフン７勿 Ｃ ７１４１匁 グ？りＺ力Figure 1 is a graph showing the temperature distribution of the primary molded product. Figure 2 is a cross-sectional view of the primary molded product. Is Fig. 3 an embodiment of the present invention? There is a sectional view '7' shown. Fig. 4 is a plan view of the heat shield plate, and Fig. 5 is a plan view showing the distribution state of the primary molded product. FIG. 6 is a sectional view showing another embodiment of the present invention. Launching description 1; - Next molded product; 2; Main body 24; Jig; 5; Heater; 6; Heat shield plate; 7; Slit percentage 8; Convex lens; Momme? ri Z force

Claims (1)

【特許請求の範囲】[Claims] 置版形状をした本体部周端に短筒形状をした口部を起立
−住設した熱可塑性合成樹脂製の一次成形品を、ヒータ
により延伸ブロー成形に適した温度まで輻射加熱する方
法でるって、放熱程度の大きい前記本体部の周縁部のｆ
ｆｌ！’１度上昇速瓜が、放熱程度の不埒い前記本体部
の中火部の温度上弁速度とほぼ等しくなるように、前記
本体部の周縁部附近に、＋）ｉＪ記−次成形品とヒータ
とを相対的に回転でせながら輻射加熱する２軸延伸ブロ
一成形広０樹体の一次成形品７Ｊｌ熱方法。A short cylindrical opening is placed on the circumferential edge of the plate-shaped main body.This is a method of radiant heating a primary molded product made of thermoplastic synthetic resin using a heater to a temperature suitable for stretch blow molding. f of the periphery of the main body, which has a large degree of heat dissipation.
Fl! +) iJ - next molded product near the periphery of the main body so that the speed at which the melon rises by 1 degree is approximately equal to the valve speed due to the temperature of the medium heat part of the main body, which is undesirable for heat dissipation. 7Jl heating method for biaxially stretched blow-molded hardwood primary molded product, in which radiation heating is performed while rotating relative to the heater.
JP58249915A 1983-11-22 1983-12-28 Method of heating primary molded item of biaxially orientated and blow molded wide-mouthed bottle Granted JPS60141523A (en)

Priority Applications (9)

Application Number Priority Date Filing Date Title
JP58249915A JPS60141523A (en) 1983-12-28 1983-12-28 Method of heating primary molded item of biaxially orientated and blow molded wide-mouthed bottle
US06/672,670 US4641758A (en) 1983-11-22 1984-11-19 Blow-molded bottle-shaped container of biaxially oriented thermoplastic synthetic resin with wide port and method of molding the same
EP19870106939 EP0240037B1 (en) 1983-11-22 1984-11-21 Blow-molded bottle-shaped container of biaxially orientated thermoplastic synthetic resin with wide port and method of molding the same
EP84308092A EP0144196B1 (en) 1983-11-22 1984-11-21 Blow-molded bottle-shaped container of biaxially oriented thermoplastic synthetic resin with wide port
CA000468355A CA1233422A (en) 1983-11-22 1984-11-21 Blow-molded bottle-shaped container or biaxially oriented thermoplastic synthetic resin with wide port and method of molding the same
DE8484308092T DE3477365D1 (en) 1983-11-22 1984-11-21 Blow-molded bottle-shaped container of biaxially oriented thermoplastic synthetic resin with wide port
DE87106939T DE3486209T2 (en) 1983-11-22 1984-11-21 Blow-molded, bottle-shaped container with a wide neck, made of biaxially oriented, synthetic, thermoplastic and molding process of the same.
AU35793/84A AU579842B2 (en) 1983-11-22 1984-11-22 Blow-molded bottle-shaped container of biaxially oriented thermoplastic synthetic resin with wide port and method of molding the same
CA000555985A CA1255062A (en) 1983-11-22 1988-01-06 Blow-molded bottle-shaped container of biaxially oriented thermoplastic synthetic resin with wide port and method of molding the same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP58249915A JPS60141523A (en) 1983-12-28 1983-12-28 Method of heating primary molded item of biaxially orientated and blow molded wide-mouthed bottle

Publications (2)

Publication Number Publication Date
JPS60141523A true JPS60141523A (en) 1985-07-26
JPH0425132B2 JPH0425132B2 (en) 1992-04-30

Family

ID=17200081

Family Applications (1)

Application Number Title Priority Date Filing Date
JP58249915A Granted JPS60141523A (en) 1983-11-22 1983-12-28 Method of heating primary molded item of biaxially orientated and blow molded wide-mouthed bottle

Country Status (1)

Country Link
JP (1) JPS60141523A (en)

Also Published As

Publication number Publication date
JPH0425132B2 (en) 1992-04-30

Similar Documents

Publication Publication Date Title
JPS6338287B2 (en)
JP6539751B2 (en) Method for uneven temperature control of preforms
JPS5824431A (en) Method for preheating elastomer article
EP0637499A1 (en) Process for producing biaxially drawn plastic bottles having excellent heat resistance and apparatus therefor
KR920005254A (en) Apparatus and method for heating a substrate in a semiconductor process
JPS5611232A (en) Jig for stretch blow molding piece
JPH05200843A (en) Method and device for heating plastic material preform with relatively thick wall
JPH0363505B2 (en)
US5237796A (en) Method and apparatus for differential softening of thermoformable plastic
US5639414A (en) Method and apparatus of manufacturing pneumatic vehicle tires
US20060131768A1 (en) Lens molding die and a producing method therefor
JPS60141523A (en) Method of heating primary molded item of biaxially orientated and blow molded wide-mouthed bottle
JPH0622874B2 (en) Heating method for polymer resin moldings
JPH0214183B2 (en)
JP2006062353A (en) Heat treatment method for flange part, its heat treatment device and manufacturing method for resin container with flange
US11161292B2 (en) Preform provided with a concave body portion
GB1297408A (en)
JP5071832B2 (en) Thermal crystallization treatment method for synthetic resin cup-shaped containers
US9802377B2 (en) Autoclave
JP2000168896A (en) Article holding tool
JPS5852912Y2 (en) parison heating device
JPH07124959A (en) Application method of ultraviolet ray to solid
US2685106A (en) Tire recapping machine
JPS6246516A (en) Heat treatment device
US20150209998A1 (en) System and methods for preheating two stage preforms