JPS6237125A - Molding method of inflation film - Google Patents

Molding method of inflation film

Info

Publication number
JPS6237125A
JPS6237125A JP60176765A JP17676585A JPS6237125A JP S6237125 A JPS6237125 A JP S6237125A JP 60176765 A JP60176765 A JP 60176765A JP 17676585 A JP17676585 A JP 17676585A JP S6237125 A JPS6237125 A JP S6237125A
Authority
JP
Japan
Prior art keywords
molten tubular
tubular member
die
filament
film
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
JP60176765A
Other languages
Japanese (ja)
Other versions
JPH0365780B2 (en
Inventor
Saburo Akane
赤根　三郎
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.)
SUUPAABATSUGU KK
Original Assignee
SUUPAABATSUGU 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 SUUPAABATSUGU KK filed Critical SUUPAABATSUGU KK
Priority to JP60176765A priority Critical patent/JPS6237125A/en
Priority to US06/892,077 priority patent/US4784597A/en
Priority to SE8603359A priority patent/SE468425B/en
Priority to AU61000/86A priority patent/AU611628B2/en
Priority to DE19863626834 priority patent/DE3626834A1/en
Priority to CA000515591A priority patent/CA1262021A/en
Priority to FR868611527A priority patent/FR2585985B1/en
Priority to KR1019860006547A priority patent/KR940003718B1/en
Priority to GB8619517A priority patent/GB2180498B/en
Publication of JPS6237125A publication Critical patent/JPS6237125A/en
Publication of JPH0365780B2 publication Critical patent/JPH0365780B2/ja
Granted legal-status Critical Current

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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
    • B29C48/90—Thermal treatment of the stream of extruded material, e.g. cooling with calibration or sizing, i.e. combined with fixing or setting of the final dimensions of the extruded article
    • B29C48/901—Thermal treatment of the stream of extruded material, e.g. cooling with calibration or sizing, i.e. combined with fixing or setting of the final dimensions of the extruded article of hollow bodies
    • B29C48/902—Thermal treatment of the stream of extruded material, e.g. cooling with calibration or sizing, i.e. combined with fixing or setting of the final dimensions of the extruded article of hollow bodies internally
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
    • B29C48/10—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels flexible, e.g. blown foils
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
    • B29C48/90—Thermal treatment of the stream of extruded material, e.g. cooling with calibration or sizing, i.e. combined with fixing or setting of the final dimensions of the extruded article
    • B29C48/901—Thermal treatment of the stream of extruded material, e.g. cooling with calibration or sizing, i.e. combined with fixing or setting of the final dimensions of the extruded article of hollow bodies
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/001—Combinations of extrusion moulding with other shaping operations
    • B29C48/0018—Combinations of extrusion moulding with other shaping operations combined with shaping by orienting, stretching or shrinking, e.g. film blowing
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/05—Filamentary, e.g. strands

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Shaping By String And By Release Of Stress In Plastics And The Like (AREA)

Abstract

PURPOSE:To enable to produce a film whose difference of mechanical properties and of nonuniform thickness in crosswise directions are little, by a method wherein a part within the scope of appropriate position from die to frost line is equipped with a large number of filament members in a state of inclination with facing upward in circular arrangement and molten tubular members are transferred by bringing the above part into contact with the filament members. CONSTITUTION:The lower end of a molten tubular member 13 is pinched by a pinch roller by extruding the molten tubular member 13 made of polyolefin resin through a die 11 and molding of a film is performed while the molten tubular member is being inflated up to the predetermined size by feeding air into the molten tubular member through a blow-off port 11'. In other words, at molding of an inflation film, orientation in a laterial direction and that in a longitudinal direction of a linear high molecule are made well-balanced by bringing the inside of a part 16 just before inflation of the same into contact with a filament member 8 of a bubble-stabilizing member 10 in a soft state and a part which has become thick and that which has become thin are made levelled to a uniform thickness.

Description

【発明の詳細な説明】 本発明はインフレーションフィルム成形法に関するもの
である。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a blown film forming method.

以下、本発明の実施例を図面に依拠して説明するに、 先ず、軸孔（１）のまわシにボス（２）を備えた大輪（
３）と軸孔（４）のまわシにボス（５）を備えた小輪（
６）とを一本の支軸＋７＞　Ｉ：ｌ−回転可能および摺
動可能に取付け、これ等大輪（３）、小輪（６）の外周
縁間（＝多数本の長尺コイルバネ製線条体（８）を所定
間隔で全周に張設すると共に大輪（３）と小輪（６）と
の距離および捻れ角を調節してボス＋２）　（５）を支
軸（７）にビス（９）　＋９１　’に回転不能および摺
動不能に固定することＣ二よって、各線条体（８）を捻
れ方向に僅かに傾斜させた肉厚ならし部材α〔を構成し
、この肉厚ならし部材ａ値をダイスαυに大輪（３）が
同ダイスαυより遠くなる向きとして垂設する。Hereinafter, embodiments of the present invention will be described with reference to the drawings. First, a large wheel (
3) and a small wheel (5) with a boss (5) around the shaft hole (4).
6) are attached rotatably and slidably on one support shaft + 7> I:l, between the outer peripheries of the large wheel (3) and the small wheel (6) (= many long coil spring wires) The strips (8) are stretched around the entire circumference at predetermined intervals, the distance between the large ring (3) and the small ring (6) and the twist angle are adjusted, and the boss +2) (5) is screwed onto the spindle (7). (9) Fixed non-rotatably and non-slidably at +91' C2.Thus, each filament (8) is constructed with a thick smoothing member α with a slight inclination in the twisting direction, and this thick The member a value is set vertically on the die αυ in such a direction that the large ring (3) is further away from the die αυ.

次いで、ダイスαＤより溶融管状体ａ３を押し出して同
溶融管状体（Ｌ（の上端をピンチロール（図示せず）に
はさむと共に当該溶融管状体αｊの中【ユ空気を吹出口
Ｉ′　より送シ込んで所定のサイズ壕でふくらませつつ
連続的にピンチルール通過後のフィルムを巻き取る手段
をなすことによってインフレークコンフィルムの成形ヲ
行つヨうにしたものである。Next, the molten tubular body a3 is extruded from the die αD, the upper end of the molten tubular body (L) is sandwiched between pinch rolls (not shown), and air is fed into the molten tubular body αj from the blow-off port I'. The flakecon film is formed by means of continuously winding up the film after passing through the pinch rule while inflating it to a predetermined size trench.

つｔｂ、上記の実施例はインフレーションフィルムの成
形に際してパルプＩに於ける漏斗状拡大部（１９に移行
する寸前個所顛の内面を肉厚ならし部材α１の線条体（
８）に接触させることによって厚くなっている部分の肉
を周辺颯ユ拡散させるよう（ニしたものである。tb. In the above embodiment, when forming a blown film, the inner surface of the funnel-shaped enlarged portion (19) of the pulp I is leveled to the thickness of the filament of the member α1 (19).
8) to spread the thickened part of the meat to the surrounding area.

尚、本発明は線条体として針金、硬質合成樹脂材料製線
条物などを使用することもある。Incidentally, in the present invention, a wire, a filament made of a hard synthetic resin material, or the like may be used as the filament.

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

図は本発明インフレーションフィルム成形法の実施例を
示すものであって、第１図はこの発明で使用するインフ
レーションフィルム成形装置の概略構成図、第２図は第
１図Ａ−Ａ線に沿う断面図、第３図は第１図Ｂ−Ｂ線と
ＢＩ　　ＢＩ線に挟まれた個所の展開図である。 （１）・・・軸孔、（２）・・・ボス、（３）・・・大
輪、（４）・・・軸孔、（５）・・・ボス、（６）・・
・小輪、（７）・・・支軸、（８）・・・線条体、＋９
１　（９）　’　・・・ビス、翰・・・肉厚ならし部材
、αυ・・・ダイス、αｊ・・・溶融管状体、Ｉ・・・
バブル、　ａ！１９・、・漏斗状拡大部、ｆｉｌ・・・
寸前個所、■・・・冷却ニアリング。 特　許　出　願　人　スーパーバッグ株式会社第　１　
図 第２図 ｍ−４６ 第３図 手続補正書 昭和６１年７月１４日The figures show an embodiment of the blown film forming method of the present invention, in which Fig. 1 is a schematic diagram of the blown film forming apparatus used in the present invention, and Fig. 2 is a cross section taken along line A-A in Fig. 1. 3 is a developed view of the area sandwiched between line BB and line BIBI in FIG. 1. (1)...Shaft hole, (2)...Boss, (3)...Large ring, (4)...Shaft hole, (5)...Boss, (6)...
- Small ring, (7)... Support axis, (8)... Striatum, +9
1 (9) ' ... Screw, kiln ... thick-walled smoothing member, αυ ... die, αj ... molten tubular body, I ...
bubble, a! 19. Funnel-shaped enlarged part, fil...
On the verge of cooling, ■... Cooling nearing. Patent applicant: Super Bag Co., Ltd. No. 1
Figure 2 m-46 Figure 3 Procedural amendment July 14, 1986

Claims (1)

【特許請求の範囲】[Claims] 熱可塑性合成樹脂のインフレーションフィルム成形に際
してダイスより出た溶融管状体に於けるダイスからフロ
ストラインに達するまでの間の適宜個所内に多数本の線
条体を、溶融管状体の移送方向に対して同個所の捻れ方
向に僅かに傾斜した向き状態および同個所の内面に沿う
円形配置で装備し、これ等線状体に上記の個所を接触さ
せて溶融管状体を移送することを特徴とするインフレー
ションフィルム成形法。In the molten tubular body that comes out of the die during blown film molding of thermoplastic synthetic resin, a large number of filaments are placed at appropriate locations between the die and the frost line in the direction of transport of the molten tubular body. Inflation characterized in that the molten tubular body is transferred by having the above-mentioned parts contact the linear bodies, with the same part being slightly inclined in the twisting direction and arranged in a circular arrangement along the inner surface of the same part. Film forming method.
JP60176765A 1985-08-10 1985-08-10 Molding method of inflation film Granted JPS6237125A (en)

Priority Applications (9)

Application Number Priority Date Filing Date Title
JP60176765A JPS6237125A (en) 1985-08-10 1985-08-10 Molding method of inflation film
US06/892,077 US4784597A (en) 1985-08-10 1986-08-01 Apparatus for producing blown film
SE8603359A SE468425B (en) 1985-08-10 1986-08-08 DEVICE FOR FILM BLOWING
AU61000/86A AU611628B2 (en) 1985-08-10 1986-08-08 Method and apparatus for producing blown film
DE19863626834 DE3626834A1 (en) 1985-08-10 1986-08-08 FILM BLOW EXTRUSION METHOD AND DEVICE
CA000515591A CA1262021A (en) 1985-08-10 1986-08-08 Apparatus for producing blown film
FR868611527A FR2585985B1 (en) 1985-08-10 1986-08-08 METHOD AND DEVICE FOR EXTRUSION OF FILM BY BLOWING COMPRISING A BUBBLE STABILIZER
KR1019860006547A KR940003718B1 (en) 1985-08-10 1986-08-08 Method and apparatus for producing blown film
GB8619517A GB2180498B (en) 1985-08-10 1986-08-11 Method and apparatus for producing blown film

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP60176765A JPS6237125A (en) 1985-08-10 1985-08-10 Molding method of inflation film

Related Child Applications (3)

Application Number Title Priority Date Filing Date
JP61166368A Division JPS6264525A (en) 1986-07-15 1986-07-15 Blown-film molder
JP61166366A Division JPS6237127A (en) 1986-07-15 1986-07-15 Molding machine for inflation film
JP61166367A Division JPS6264524A (en) 1986-07-15 1986-07-15 Blown-film molder

Publications (2)

Publication Number Publication Date
JPS6237125A true JPS6237125A (en) 1987-02-18
JPH0365780B2 JPH0365780B2 (en) 1991-10-15

Family

ID=16019424

Family Applications (1)

Application Number Title Priority Date Filing Date
JP60176765A Granted JPS6237125A (en) 1985-08-10 1985-08-10 Molding method of inflation film

Country Status (1)

Country Link
JP (1) JPS6237125A (en)

Also Published As

Publication number Publication date
JPH0365780B2 (en) 1991-10-15

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