JPS59104917A - Heat-setting method of stretched cylindrical member - Google Patents
Heat-setting method of stretched cylindrical memberInfo
- Publication number
- JPS59104917A JPS59104917A JP21524482A JP21524482A JPS59104917A JP S59104917 A JPS59104917 A JP S59104917A JP 21524482 A JP21524482 A JP 21524482A JP 21524482 A JP21524482 A JP 21524482A JP S59104917 A JPS59104917 A JP S59104917A
- Authority
- JP
- Japan
- Prior art keywords
- cylindrical member
- heat
- blow molding
- type continuous
- mold
- 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
Links
Classifications
-
- 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
- B29C49/0015—Making articles of indefinite length, e.g. corrugated tubes
- B29C49/0021—Making articles of indefinite length, e.g. corrugated tubes using moulds or mould parts movable in a closed path, e.g. mounted on movable endless supports
-
- 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
- B29C49/6472—Heating or cooling preforms, parisons or blown articles in several stages
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
- 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】
本発明は延伸筒状部材の熱固定方法に関し、特に熱ｔｉ
ｆ塑性塑性１樹成樹脂伸ブロー成形物をキャタピラ型連
続金型に導入して熱固定する方法に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for heat-setting a stretched cylindrical member, and particularly to a method for heat-setting a stretched cylindrical member.
f-Plasticity 1 A resin stretch-blow molded product is introduced into a caterpillar-type continuous mold and is heat-set.
本出願人は先に飲食物即ち炭配アルコール飲料、清飲＃
Ｉ水や缶詰、瓶詰用食品等を収納するための容器類とし
てプラスチックの筒状部材を利用すればよいことに着目
して、これら筒状部材の製造方法並′びに製造装置を開
発して特許を出願している。そして製造に当っては生産
性を高めしかも特定寸法にするためブロー成形手段を提
案すると共に該ブロー成形においても金型をキャタピラ
型の連続金型となし、延伸速度と金型循環速度とをほぼ
一致させて行なう製造手段も提案した。しかしながらキ
ャタピラ型の連続金型を利用して熱可塑性合成樹脂特に
ポリエステルの延伸筒状部材を熱固定するに当っては、
ブロー成形の速度、連続金型の加熱範囲、および金型よ
りの取り出し等が問題であり、これらが適当でないと一
定厚さの筒状部材が得られないことが判った。The applicant has previously stated that food and beverages, namely alcoholic beverages,
I Focused on the fact that plastic cylindrical members could be used as containers for storing water, canned food, bottled food, etc., and developed and patented a manufacturing method and manufacturing device for these cylindrical members. has been applied for. In order to increase productivity and achieve specific dimensions, we proposed a blow molding method, and also used a continuous caterpillar mold for the blow molding, so that the stretching speed and mold circulation speed could be controlled approximately. We also proposed a manufacturing method that allows for matching. However, when heat-setting a stretched cylindrical member of thermoplastic synthetic resin, especially polyester, using a caterpillar-type continuous mold,
It has been found that the speed of blow molding, the heating range of the continuous mold, the removal from the mold, etc. are problems, and unless these are appropriate, a cylindrical member of a constant thickness cannot be obtained.
本発明はこれらについて研究した結果到達したもので、
押出成形によって成形された管状部材をブロー成形法に
よって延伸成形して得られた延伸筒状部材を熱固定温度
範囲に加熱されたキャタピラ型連続金型に導入し、内圧
を加えた状態で熱固定すると共に該キャタピラ金型の成
形物取出部において冷却媒体により筒状部材を冷却する
様にしたものである。The present invention was arrived at as a result of research on these matters.
A tubular member formed by extrusion is stretch-molded by blow molding, and the resulting stretched tubular member is introduced into a caterpillar-type continuous mold heated to a heat-setting temperature range, and heat-set under internal pressure. At the same time, the cylindrical member is cooled by a cooling medium at the molded product take-out portion of the caterpillar mold.
以下本発明を適用した延伸筒状部材製造手段の一例を図
面に基づいて説明する。第１図（見取図）は本発明によ
って製造する短筒状材１を示し、第２図（概略側面図）
は該筒状材ｌを連続的ｉｊ製造する設備を示している。An example of a stretched cylindrical member manufacturing means to which the present invention is applied will be explained below based on the drawings. Fig. 1 (schematic diagram) shows a short cylindrical material 1 produced according to the present invention, and Fig. 2 (schematic side view)
1 shows equipment for continuously manufacturing the cylindrical material 1.
即ちこの製造設備は］一部側から押出装置２．ダイス６
、温度調節装置８．ブロー成形装置９．引取装！１１３
．ヒートセッｉ・装置１４．必要によって２次引取装置
（図示せず）及び切断装置（図示せず）から構成されて
おり、押出装置２のホッパー３に熱可塑性樹脂ぺ【／ツ
トを投入する。尚好ましい樹脂剤としてはポリエステル
例えばポリエチレンテレフタレー１゛。That is, this manufacturing equipment is equipped with an extrusion device 2 from one side. Dice 6
, temperature control device8. Blow molding equipment9. Collection equipment! 113
．． Heat Set I/Device 14. It is comprised of a secondary take-up device (not shown) and a cutting device (not shown) as required, and the thermoplastic resin pellets are fed into the hopper 3 of the extrusion device 2. A preferred resin agent is polyester such as polyethylene terephthalate 1.
ポリシクロヘキサンジメチレンテレフタレート。Polycyclohexane dimethylene terephthalate.
エチレンテレフタレート繰り返し単位８０モル％以上含
有するノ（重合ポリエステル等、ポリピレン。Containing 80 mol% or more of ethylene terephthalate repeating units (polymerized polyester, etc., polypyrene).
ポリアミド等が挙げられるが、特にポリエステルが好ま
しい。又複数の樹脂の積層等であってもよい。またこれ
らの樹脂には所望により帯電防止剤、紫外線吸収剤等の
添加剤又は改質剤を配合する。そしてこれらの樹脂はシ
リンダ４の外周に配置された加熱手段によって溶融し、
スクリュー５の回転によって押し出され、ダイス６に導
入される。ダイス６としては図示する様に屈曲案内型で
あって、その導孔６ａがほぼ９０度屈曲したものである
ことが推奨される。しかし一連の装置を平面的に設備し
た装置であってもよい。そして導孔６ａの垂直部側には
その中心位置に芯軸７を配設してダイス６の出口部にお
いてパイプ状の樹脂が押し出される様になっている。一
方このダイス６の吐出側には、導孔６ａと連通する透孔
を形成した温度調節装置８を設けており、ダイス６から
押し出されたパイプ状樹脂材を、次に行なうブロー成形
に適当する温度に調整する。従って該温度調Ｆ）装置８
には温度検査部材を設けて導入されるパイプ状樹脂材の
温度を検出し、冷却により温調するときは冷却媒体、加
熱により温調するときは加熱媒体の温度を制御して特定
温度範囲に調節する。９はブロー成形装置であって、図
は温度調節装置８に接続されたものを示したが必要によ
っては前記ダイス６に接続させてもよい。ブロー成形装
置９は、第３図（側断面図）に示す様に拡径成形内面１
０を形成しており、拡径状態のまま下部側に開放されて
いる。一方タイス６及び温度調節装置８の透孔を貫通し
て芯軸７が設けられており、この芯軸７はブロー成形装
置９内にも延びている。そしてその成形内面ＩＯの開放
側部に気封装置１１を支持している。気Ｊ）装置１１と
してはドラムの周辺に多数列の突条を形成し、成形内面
１０との間に間隙１２を形成している。他方芯軸７には
その中心に送気路７ａを形成しており、この送気路７ａ
は気封装置１１の上部側において開口部７ｂを成形して
いる。またこの間１コ部７ｂはその噴気を成形内面１０
の拡径部に指向する様に形成されてパイプ状樹脂材をブ
ロー成形し、引取装置１３によって引き出される。この
際引取速度を大きくして軸方向の延伸を積極的に行ない
ながら引き取るのが好ましい。１４はヒートセット装置
で加熱部１５と冷却部１６で構成される。また引取装置
１３としては例えば第４図（一部破断断面図）に小すよ
うに芯＠７の下端側に案内胴７ｃを設けると共にこれを
囲んで引取装置ＩＱ＜設けられており、案内胴７Ｃ内に
設けられ外周面と一致する様に配置された滑車１７と対
応して引取ベルト１８が引取装置１３側に設けられて構
成されている。そしてこの引取ベルト１８はモータ１８
ａによって全部（図では４組）が駆動され、ブロー成形
されたパイプ状樹脂材を延伸しながら引き出してヒート
セント装置１４に送り込み、切断装置（図示せず）によ
って第１図のごとき短筒状材１を製造する。Examples include polyamide, but polyester is particularly preferred. Alternatively, it may be a laminate of a plurality of resins. Additionally, additives or modifiers such as antistatic agents and ultraviolet absorbers may be added to these resins, if desired. These resins are then melted by heating means placed around the outer periphery of the cylinder 4.
It is extruded by the rotation of the screw 5 and introduced into the die 6. It is recommended that the die 6 be of a bent guide type as shown in the figure, with the guide hole 6a bent at approximately 90 degrees. However, it may be a device in which a series of devices are installed in a planar manner. A core shaft 7 is disposed at the center of the vertical side of the guide hole 6a so that a pipe-shaped resin is extruded at the outlet of the die 6. On the other hand, on the discharge side of this die 6, there is provided a temperature control device 8 having a through hole communicating with the guide hole 6a, which controls the pipe-shaped resin material extruded from the die 6 to be suitable for the next blow molding. Adjust to temperature. Therefore, the temperature control F) device 8
A temperature inspection member is installed to detect the temperature of the introduced pipe-shaped resin material, and the temperature of the cooling medium is controlled when the temperature is controlled by cooling, and the heating medium is controlled when the temperature is controlled by heating to a specific temperature range. Adjust. Reference numeral 9 denotes a blow molding device, which is shown connected to the temperature control device 8 in the figure, but may be connected to the die 6 if necessary. As shown in FIG.
0, and is open to the lower side while remaining in the enlarged diameter state. On the other hand, a core shaft 7 is provided passing through the through holes of the tie 6 and the temperature adjustment device 8, and this core shaft 7 also extends into the blow molding device 9. A gas sealing device 11 is supported on the open side of the molded inner surface IO. J) As the device 11, multiple rows of protrusions are formed around the drum, and a gap 12 is formed between the drum and the molded inner surface 10. On the other hand, the core shaft 7 has an air passage 7a formed at its center.
An opening 7b is formed on the upper side of the air sealing device 11. Also, during this time, the first part 7b transfers the fumes to the forming inner surface 10.
A pipe-shaped resin material is blow-molded and drawn out by a drawing device 13. At this time, it is preferable to increase the take-up speed and actively draw the film in the axial direction. Reference numeral 14 denotes a heat setting device, which is composed of a heating section 15 and a cooling section 16. Further, as the take-off device 13, a guide cylinder 7c is provided on the lower end side of the core @7 as shown in FIG. A take-off belt 18 is provided on the take-off device 13 side in correspondence with a pulley 17 provided in 7C and arranged so as to coincide with the outer peripheral surface. This take-up belt 18 is connected to the motor 18
All (4 sets in the figure) are driven by a, and the blow-molded pipe-shaped resin material is drawn out while being stretched and sent to the heat cent device 14, and cut into short cylindrical shapes as shown in FIG. 1 by a cutting device (not shown). Manufacture material 1.
ところでこの様なブロー成形並びに引取装置ではブロー
成形と引き取りが個別に行なわれ、ブロー成形時におけ
る拡径成形面での摩擦が均一でないことが指摘されてい
る。これらから本出願人はブロー成形装置としてキャタ
ピラ型の組み合わせ連続金型を開発して提案した。そし
てこのキャタピラ型ブロー成形金型は前第２図に示した
ブロー成形装置９に代って設けられると共に引取装置１
３を省略することができ設備を簡略化できる。By the way, in such a blow molding and take-off device, blow molding and take-off are performed separately, and it has been pointed out that the friction on the diameter-expanding molding surface during blow molding is not uniform. Based on these, the applicant has developed and proposed a continuous mold with a caterpillar type combination as a blow molding device. This caterpillar type blow molding mold is provided in place of the blow molding device 9 shown in FIG.
3 can be omitted and the equipment can be simplified.
またこの様な金型を利用することによって延伸ブロー成
形を段階的に行なうことができ、例えば第２１Δの設備
において引取装置１３をこのキャタピラ型連続金型とす
れば、ブロー成形を図示した装置９で行ない、続いてキ
ャタピラ型連続金型を熱固定手段として利用でき高品質
の短筒状材ｌが得られる。第５図（側面略図）はこのキ
ャタピラ型ブロー成形金型装置１８を延伸ブロー成形手
段として利用した場合を示し、第６図は第５図の右側面
でいずれも要部を破断して示している。またキャタピラ
型連続金型を熱固定の手段として利用するときは前記し
た様に、第３図に示したブロー成形装置９に続いてキャ
タピラ型連続金型装置を設けて熱固定するか、或いはブ
ロー成形を第５図に示したキャタピラ型ブロー成形金型
装置１８で行ない、更にキャタピラ型連続金型を連設し
て熱固定を行なってもよい。Further, by using such a mold, stretch blow molding can be carried out in stages. For example, if the take-off device 13 in the equipment No. 21Δ is made of this caterpillar type continuous mold, the blow molding can be performed in the apparatus 9 shown in the figure. Then, a caterpillar-type continuous mold can be used as a heat-setting means, and a high-quality short cylindrical material l can be obtained. FIG. 5 (schematic side view) shows the caterpillar type blow molding mold device 18 used as a stretch blow molding means, and FIG. 6 shows the right side of FIG. 5 with essential parts cut away. There is. In addition, when using a caterpillar type continuous mold as a means of heat setting, as described above, a caterpillar type continuous mold device is installed following the blow molding device 9 shown in Fig. 3 for heat setting, or blow molding is performed. The molding may be carried out using a caterpillar type blow molding mold device 18 shown in FIG. 5, and further heat setting may be carried out using a continuous caterpillar type mold.
キャタピラ型延伸プロー成彫金型装置１ｓは第７図（側
断面図）に示すように、箱体２ｏの内側にブロー成形パ
イプ部材の通過軌跡を囲んで側に駆動チェーン２１ 、
２１を配設すると共にこのチェーン２１にそれぞれ半裁
形の金型２２を隣接するように取り付けて構成し、箱体
２０の頂部側にパイプ部材の導入部２０ａ、底部側に取
出孔２０ｂ（第５図）を形成し、側面にチェーン駆動部
２０ｃを形成すると共に他方側１ｍ上部に金型温調用熱
媒体導入部２０ｄを設けている。そして金型２２は第８
図（第７図の切断線■−■矢印方向断面図）に示す様に
両方のチェーンにそれぞれ設けられた半裁金型２２が互
いに合致されて円筒形の外金型を形成するように構成さ
れており、互いに矢印方向に等速度で移動するものであ
る。従って合致した金型２２の垂直状の通路がブロー成
形金型となり、しかもこの金型２２は矢印方向に移動す
るのでブロー成形されたパイプ状部材を積極的に取出孔
２０ｂ方向へ送り出すと共に互いに離れて成形物を離脱
させる。またブロー成形に当っては、第９図（要部拡大
説明図）に示すように前第７図で示した芯ＩＮ＋７を貫
いて吊索２３を設けると共にその下端にシール部材２４
を取り利け、該シール部材２４を前記半裁金型２２の離
脱部近くに配置する。なお、ブロー成形においては加熱
温度、気体圧力が重要であり、これらの条件が適切でな
いと均一な肉厚製品を得ることができない。このためブ
ロー成形延伸部に加熱装置２５を配設すると共に前記箱
体２ｏ内を温調するのが好ましい。そしてブロー成形用
圧カ気体は前記芯軸７を貫いた通気路から矢印のごとく
導入する。尚キャタピラ型連続金型を前記ブロー成形装
置９に続いて熱固定の手段として構成するときは、前第
４図において示した案内胴７ｃにも通気路を連通して構
成し、該通気路を含めた芯軸７を形成して吊索２３を設
ける。また熱固定をキャタピラ型連続金型で行なう場合
ｌ）ｂ記シール部材２４の下部に更に吊索を設は内圧を
加えるシール部材を設ければよい。またシール部材２４
は省略してキャタピラ型連続金型の出１１部にシール部
材を設はブロー成形時の内圧と熱固定時の内圧を同じ圧
力にしてもよい。ところでこの様なキャタピラ型連続金
型を熱、 固定に利用するに当っては、その加熱温度お
よび時１１１１が問題であり、これらの条件が適切でな
いとよい製品が得られない。このため本発明では第９図
に示したキャタピラ型延伸ブロー成形金型入口部前に設
けた加熱装置２５と同様の加熱装置をキャタピラ型連続
金型入口部前に配設すると共に第７図同様の箱体を設は
箱体内に加熱媒体を導入若しくは循環させてキャタピラ
型連続金型を熱固定温度範囲に調節する。熱固定温度は
用いる熱可塑性樹脂の種類、引取速度、金型の長さ等に
よっても異なるが、通常１２０〜２３０ ’Ｏ（ポリエ
ステルでは好ましくは１５０〜２００’Ｃりの範囲に維
持すると共に通常内圧をブロー成形用気体圧とほぼ同じ
とするものである。しかし必ずも同一でなくてもよく要
は熱固定温度条件で変形が防止されればよい。尚ブロー
成形用気体圧としては通常２ ｋｇ／ ａｍ２〜５ｋｇ
／ｃｍ”の気体を用いる。またこの圧力を調整するに当
っては、シール部材の材質並びに外周突条山数（ラビリ
ンス）を増減したり或いはリングツＺツキングの形状や
配ｄジ数を変更して調整すればよい。また本発明では、
キャタピラ型連続金型を利用するに当って、その取出部
に冷却装置を配設して行なうもので、第９図に示すごと
く連続合わせ金型の離脱部分に延伸筒状部材を取り囲む
ように冷却装置２６を設けるものである。そして冷却装
置２６としては冷却媒体導入パイプを連接した円形パイ
プの頂面側に複数のノズル２８ａを設け、該ノズル２６
ａを成形物の金型離脱部にそれぞれ指向させて冷却媒体
を吹きイ１ける様に構成する。As shown in FIG. 7 (side sectional view), the caterpillar type stretch blow molding die device 1s has a drive chain 21 on the inside of the box body 2o, surrounding the passage path of the blow molding pipe member.
21, and half-shaped molds 22 are attached to the chains 21 adjacent to each other, and a pipe member introduction part 20a is provided on the top side of the box body 20, and an extraction hole 20b (fifth hole 20b is provided on the bottom side). A chain drive part 20c is formed on the side surface, and a heat medium introduction part 20d for mold temperature adjustment is provided 1 m above the other side. And the mold 22 is the eighth
As shown in the figure (cross-sectional view in the direction of the cutting line ■-■ arrow in FIG. 7), the half-cut molds 22 provided on both chains are fitted together to form a cylindrical outer mold. They move at the same speed in the direction of the arrows. Therefore, the vertical passage of the matching molds 22 becomes a blow molding mold, and since the molds 22 move in the direction of the arrow, the blow molded pipe-shaped members are actively sent out toward the extraction hole 20b and separated from each other. to release the molded product. In addition, during blow molding, as shown in FIG. 9 (enlarged explanatory diagram of the main part), a suspension rope 23 is provided passing through the core IN+7 shown in the previous FIG.
The sealing member 24 is placed near the detachment portion of the half-cut mold 22. In blow molding, heating temperature and gas pressure are important, and unless these conditions are appropriate, a product with uniform thickness cannot be obtained. For this reason, it is preferable to provide a heating device 25 in the blow molding stretching section and to control the temperature inside the box 2o. Pressurized gas for blow molding is introduced from the air passage passing through the core shaft 7 as shown by the arrow. In addition, when a caterpillar type continuous mold is configured as a heat fixing means following the blow molding device 9, an air passage is also configured to communicate with the guide cylinder 7c shown in FIG. 4, and the air passage is A hanging rope 23 is provided by forming a core shaft 7 including the core shaft 7. In addition, when heat setting is carried out using a caterpillar type continuous mold, l) a hanging rope may be further provided below the sealing member 24 described in b, or a sealing member for applying internal pressure may be provided. Also, the seal member 24
may be omitted, and a seal member may be provided at the protrusion 11 of the caterpillar type continuous mold so that the internal pressure during blow molding and the internal pressure during heat setting are the same pressure. By the way, when using such a caterpillar type continuous mold for heating and fixing, there are problems with the heating temperature and time, and unless these conditions are appropriate, good products cannot be obtained. For this reason, in the present invention, a heating device similar to the heating device 25 provided in front of the inlet of the caterpillar type stretch blow molding mold shown in FIG. 9 is provided in front of the inlet of the caterpillar type continuous mold. A heating medium is introduced or circulated inside the box to adjust the caterpillar continuous mold to a heat-setting temperature range. The heat setting temperature varies depending on the type of thermoplastic resin used, take-up speed, length of the mold, etc., but is usually maintained in the range of 120 to 230'O (for polyester, preferably 150 to 200'C), and at the normal internal pressure. The gas pressure for blow molding is approximately the same as the gas pressure for blow molding.However, it does not necessarily have to be the same, as long as deformation can be prevented under heat-fixing temperature conditions.The gas pressure for blow molding is usually 2 kg. / am2~5kg
/cm" gas is used. In addition, to adjust this pressure, increase or decrease the material of the sealing member and the number of protruding grooves (labyrinths) on the outer periphery, or change the shape and number of radials of the ring and Z. In addition, in the present invention,
When using a caterpillar type continuous mold, a cooling device is installed at the ejection part of the continuous mold, and as shown in Figure 9, cooling is carried out at the detached part of the continuous mold so as to surround the elongated cylindrical member. A device 26 is provided. As the cooling device 26, a plurality of nozzles 28a are provided on the top side of a circular pipe to which the cooling medium introduction pipe is connected.
The cooling medium is blown by directing the cooling medium to the mold release portion of the molded product.
本発明は筒状部材を前記したように延伸適温に加熱して
延伸ブロー成形すると共に得られた延伸筒状部材を加熱
されたキャタピラ型連続金型内で内圧を加えた状態で行
なうようにし、成形物の冷却は該キャタピラ型連続金型
の成形物取出部において冷却媒体により行なうようにし
たから延伸ブロー成形および熱固定を確実に行なうこと
ができると共に高品質の短筒状部材を得ることができる
ようになった。In the present invention, as described above, a cylindrical member is heated to an appropriate stretching temperature and then stretch-blow molded, and the obtained stretched cylindrical member is subjected to internal pressure in a heated caterpillar-type continuous mold, Since the molded product is cooled by a cooling medium at the molded product take-out portion of the caterpillar type continuous mold, stretch blow molding and heat setting can be performed reliably, and high quality short cylindrical members can be obtained. Now you can.
第１図は短筒状部材の見取図、第２図は従前の短筒状部
材製造設備を説明する概略側面図、第３図は延伸ブロー
成形装置の側断面図、第４図は引取装置の一部破断１７
．面図、第５図は本発明を利用するキャタピラ型延伸ブ
ロー成形装置の側面図、第６図は第５図の右側面図でそ
れぞれ一部を破断して示す。第７図は第５図の一部拡大
断面図、第８図は第７図の切断線■−■に沿う矢印方向
断面図、第９図は第７図の要部拡大説明図である。
１・・・短筒状材 ２・・・押出装置３・・・
ホッパー ４・・・シリンダ５・・・スクリュ
ー ６・・・ダイス７・・・芯軸
８・・・温度調節装置８・・・ブロー成形装置 ｌＯ
・・・拡径成形内面１１・・・気封装置 １２
・・・間隙１３・・・引取装置 １４・・・ヒ
ートセット装置１５・・・加熱部 １６・・
・冷却部１７・・・滑車 １８・・・引取
ベルト１８・・・キャタピラ型ブロー成形装置２０・・
・箱体 ２１・・・チェーン２２・・・半
裁金型 ２３・・・吊索２４・・・シール部材
２５・・・加熱装置２Ｂ・・・冷却装置
出願人 東洋紡績株式会社
代理人 弁理士 植木久−
第５図
第６図
第８図Fig. 1 is a sketch of a short cylindrical member, Fig. 2 is a schematic side view illustrating a conventional short cylindrical member manufacturing equipment, Fig. 3 is a side sectional view of a stretch blow molding device, and Fig. 4 is a drawing of a drawing device. Partial breakage 17
．． 5 is a side view of a caterpillar type stretch blow molding apparatus using the present invention, and FIG. 6 is a right side view of FIG. 5, each partially cut away. 7 is a partially enlarged cross-sectional view of FIG. 5, FIG. 8 is a cross-sectional view taken in the direction of the arrows along section line ■--■ in FIG. 7, and FIG. 9 is an enlarged explanatory view of the main part of FIG. 7. 1... Short cylindrical material 2... Extrusion device 3...
Hopper 4...Cylinder 5...Screw 6...Die 7...Core shaft
8...Temperature adjustment device 8...Blow molding device lO
...Diameter-expanded molded inner surface 11...Air sealing device 12
...Gap 13...Take-up device 14...Heat setting device 15...Heating section 16...
・Cooling part 17... Pulley 18... Take-up belt 18... Caterpillar type blow molding device 20...
・Box body 21...Chain 22...Half-cut mold 23...Hanging rope 24...Sealing member 25...Heating device 2B...Cooling device Applicant Toyobo Co., Ltd. agent Patent attorney Ueki - Figure 5 Figure 6 Figure 8
Claims (1)
材を延伸適温に調整してから延伸ブロー成形して得られ
た延伸筒状部材を、熱固定温度範囲に加熱されたキャタ
ピラ型連続金型内に導入し、内圧を加えた状態で熱固体
すると共に連続的に引き取り、該キャタピラ型連続金型
の成形物取出部において冷却媒体により筒状部材を冷却
することを特徴とする延伸筒状部材の熱固定方法。(1) A plastic tubular member formed by extrusion molding is adjusted to the appropriate stretching temperature, and then the stretched tubular member obtained by stretch blow molding is introduced into a caterpillar-type continuous mold heated to a heat-setting temperature range. Thermal fixation of a stretched cylindrical member, characterized in that the cylindrical member is thermally solidified under internal pressure and continuously taken out, and the cylindrical member is cooled with a cooling medium at the molded product take-out portion of the caterpillar type continuous mold. Method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21524482A JPS59104917A (en) | 1982-12-07 | 1982-12-07 | Heat-setting method of stretched cylindrical member |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21524482A JPS59104917A (en) | 1982-12-07 | 1982-12-07 | Heat-setting method of stretched cylindrical member |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59104917A true JPS59104917A (en) | 1984-06-18 |
| JPH039851B2 JPH039851B2 (en) | 1991-02-12 |
Family
ID=16669103
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP21524482A Granted JPS59104917A (en) | 1982-12-07 | 1982-12-07 | Heat-setting method of stretched cylindrical member |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59104917A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007507365A (en) * | 2003-10-01 | 2007-03-29 | ルプケ，マンフレッド エー．，エー． | External cooling type movable mold |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5386761A (en) * | 1977-01-12 | 1978-07-31 | Mitsui Petrochemical Ind | Pipe making method |
| JPS5795423A (en) * | 1980-12-06 | 1982-06-14 | Toyobo Co Ltd | Apparatus for continuously making cylindrical body |
-
1982
- 1982-12-07 JP JP21524482A patent/JPS59104917A/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5386761A (en) * | 1977-01-12 | 1978-07-31 | Mitsui Petrochemical Ind | Pipe making method |
| JPS5795423A (en) * | 1980-12-06 | 1982-06-14 | Toyobo Co Ltd | Apparatus for continuously making cylindrical body |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007507365A (en) * | 2003-10-01 | 2007-03-29 | ルプケ，マンフレッド エー．，エー． | External cooling type movable mold |
| JP4856545B2 (en) * | 2003-10-01 | 2012-01-18 | ルプケ，マンフレッド エー．，エー． | External cooling type movable mold |
| KR101129118B1 (en) | 2003-10-01 | 2012-03-26 | 스테판 에이. 럽크 | Externally cooled moving mold |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH039851B2 (en) | 1991-02-12 |
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