JPS58131050A - Manufacturing method and device for extruded product - Google Patents

Manufacturing method and device for extruded product

Info

Publication number
JPS58131050A
JPS58131050A JP57014065A JP1406582A JPS58131050A JP S58131050 A JPS58131050 A JP S58131050A JP 57014065 A JP57014065 A JP 57014065A JP 1406582 A JP1406582 A JP 1406582A JP S58131050 A JPS58131050 A JP S58131050A
Authority
JP
Japan
Prior art keywords
extruded product
shape
orifice
lower side
back surface
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
Application number
JP57014065A
Other languages
Japanese (ja)
Inventor
Shinichi Goto
慎一 後藤
Takao Oida
老田　貴雄
Yoshihiro Menju
毛受　義博
Yoshio Yamazaki
山崎　喜夫
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.)
Toyoda Gosei Co Ltd
Original Assignee
Toyoda Gosei 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 Toyoda Gosei Co Ltd filed Critical Toyoda Gosei Co Ltd
Priority to JP57014065A priority Critical patent/JPS58131050A/en
Publication of JPS58131050A publication Critical patent/JPS58131050A/en
Pending 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
    • B29C48/355—Conveyors for extruded articles
    • 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
    • B29C48/07—Flat, e.g. panels
    • 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
    • B29C48/12—Articles with an irregular circumference when viewed in cross-section, e.g. window profiles

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)

Abstract

PURPOSE:To easily obtain an extruded product which has an uniformly smooth shape in a longitudinal and a lateral direction of the back, by a method wherein, until the extruded product right after extruding is cooled and cured, it is conveyed to a level positioned at the same height as that of a lower side of an orifice by a conveyor having a conveying surface being smooth in conformity with the configuration of the back of the extruded product. CONSTITUTION:In an extruding die 2, a notch is formed below a lower side 3 of an orifice forming the back of an extrudec product M, and a belt conveyor 5 is located so that a conveying surface 4 is continuously positioned in the same level as that of the lower side 3 of the orifice. The conveying surface 4 is smoothened, and the surface is held in the shape being in conformity with the shape, i.e., a flat surface or an R-shape, of the back of the extruded product M by follower rollers 6 and 6A and a drive roller 7, which are located below the lower side 3 of the orifice. The length of the conveying surface 4 may be longer than a conveying distance during which the extruded product is cooled and cured. A material of a belt is preferably a synthetic resin comprising glass fiber serving as a core material and synthetic resin such as teflon coating the surface thereof.

Description

【発明の詳細な説明】 の装置に関し、特に自動車用サイドモールのように長手
方向及び幅方向に均一な裏面形状を要求される押出品に
好適な発明である。DETAILED DESCRIPTION OF THE INVENTION This invention is particularly suitable for extruded products that require a uniform back surface shape in the longitudinal and width directions, such as side moldings for automobiles.

サイドモールは、意匠的見地から自動車のボディ側部全
長にわたって装着されるが、この場合、モール本体（押
出品）の裏面に両面チー７を貼着したものが使用される
ことが多い。このとき抜本性の見地から、モール本体の
長手方向及び幅方向の裏面形状が均一でかつ裏面平滑で
あることが望ましいが、そのような裏面の押出品を得る
には、押出速度、材料吐出量等の制御をシビアに行なう
必要があり不良品も発生しやすく生産性に問題点があっ
た。Side moldings are installed over the entire length of the side of an automobile body from a design standpoint, but in this case, a molding body (extruded product) with a double-sided chip 7 affixed to the back side is often used. At this time, from the standpoint of thoroughness, it is desirable that the shape of the back surface of the molding body in the longitudinal and width directions is uniform and smooth, but in order to obtain an extruded product with such a back surface, the extrusion speed and material output amount must be adjusted. It is necessary to carry out severe control such as the following, and defective products are likely to occur, which poses problems in productivity.

この押出品の長手方向及び幅方向における裏面形状が不
均一となる理由は、材料の吐出量が経時的に変動し、ま
た材料の粘度、押出時の温度変ｆヒ等によりダイス内の
流れが変って幅方向の吐出状態が変動するとともに、押
出直後から冷却内ｆヒするまでに押出品が半溶融状態に
あり若干の垂れを生じるためと推定される。The reason why the shape of the back surface of the extruded product is uneven in the longitudinal and width directions is that the discharge amount of the material fluctuates over time, and the flow inside the die is affected by the viscosity of the material, temperature changes during extrusion, etc. It is presumed that this is because the extruded product is in a semi-molten state from immediately after extrusion until it cools down, causing some sag.

本発明は、上記にかんがみて、長手刀向反び幅方向の裏
面形状が均一でかつ裏面平滑な押出品を容易に製造でき
る方法及びその装置を提供することにある。In view of the above, it is an object of the present invention to provide a method and an apparatus for easily manufacturing an extruded product having a uniform back surface shape in the longitudinal direction, warp direction, and width direction and having a smooth back surface.

本５６明の押出品の製造方法及びその装置は、押出直後
の押出品を、冷却固化するまでの裏面形状に沿う平滑な
搬送面を備えたベルトコンベヤで搬送する方法により、
及び、押出ダイの押出品裏面を形成するオリフィス下側
と同一高さ位置に連続して、押出品の裏面形状に沿うよ
うに形成された平滑な搬送面がくるようにベルト、コン
ベヤを配設した装置により上記目的を達成する。The method and apparatus for producing an extruded product according to the present invention involves a method of transporting the extruded product immediately after extrusion using a belt conveyor equipped with a smooth conveying surface that follows the shape of the back surface until it is cooled and solidified.
Also, the belt and conveyor are arranged so that the smooth conveying surface formed to follow the shape of the back surface of the extruded product is located continuously at the same height as the lower side of the orifice that forms the back surface of the extruded product of the extrusion die. The above objectives will be achieved by this device.

以下、本発明を図例に基づいて説明する。Hereinafter, the present invention will be explained based on illustrated examples.

第１〜３図に示すように、押出ヘッド／と連設された押
出ダイ２において、押出品Ｍの裏面を形成するオリフィ
ス下側３の下方が切り欠かれ、オリフィス下側３と同一
高さ位置に連続して、搬送面ゲがくるようにベルトコン
ベヤＳが配設されている。このとき搬送面ｔｌは平滑面
とされ、その形状はオリフィス下側３の下方に配設され
る従動ローラ乙、乙Ａ及び駆動ローラ７により、押出品
Ｍの裏面形状（平担面又はＲ形状）に沿うように維持さ
れる。このとき、搬送面ゲの長さは、押出品か冷却固化
するまでの搬送距離より長いものとする。ベルトの材質
は、例えばガラス繊維を芯材とＬｔ面をテフロンコーテ
ィングした合成樹脂・桓のものが望ましい。スチールベ
ルトでは押１１″１品の裏面側からの放熱が大きくなり
押出品裏面側が先に冷却固化してそり現象が生じやすく
望ましくない。しかし、ベルトを温調すれば使用可能で
ある。As shown in FIGS. 1 to 3, in the extrusion die 2 connected to the extrusion head/, the lower part of the orifice lower side 3 forming the back surface of the extruded product M is cut out, and the lower part is cut out at the same height as the orifice lower side 3. A belt conveyor S is arranged so that the conveying surface is continuous with the position. At this time, the conveyance surface tl is a smooth surface, and the shape of the back surface of the extruded product M (flat surface or R shape ). At this time, the length of the conveying surface ridge is longer than the conveying distance until the extruded product is cooled and solidified. The material of the belt is desirably, for example, a synthetic resin resin made of glass fiber coated with Teflon on the core material and the Lt surface. In the case of a steel belt, heat dissipation from the back side of each extruded product becomes large, and the back side of the extruded product cools and solidifies first, which is undesirable and tends to cause warpage.However, it can be used if the belt is temperature controlled.

なお、駆動ローラと従動ローラとの間の距離が侵い場合
は、搬送面の垂れを防止するために７個又は複数個の重
量ローラざを配設する。当然、ベルトコンベヤＳの搬送
速度と押出速度と（は同調するようになっている。If the distance between the driving roller and the driven roller is too large, seven or more heavy rollers are provided to prevent the conveyance surface from sagging. Naturally, the conveyance speed and extrusion speed of the belt conveyor S are synchronized.

次に上記装置を用いてのこの発明の詳細な説明する。Next, the present invention using the above device will be explained in detail.

押出バレル（図示せず）から押出ヘッド／に至ったＰＶ
Ｃ等の溶融合成便座材料Ｓは、押出ダイ２のオリブイス
から、ベルトコンベヤの搬送［ｆｉ＋　’１上に載置さ
れて押出される。当然、ベルトコンペ＋５は駆動ローラ
７により押出速度に同調して押出品Ｍを搬送可能となっ
ている。このとき、モ滑な搬送面ｌｌは押出品Ｍの裏面
形状に沿うように形成され、か°つオリフィス下側と同
一高さにあり、半溶融状態にある押出品Ｍはその裏面が
搬送面ｌになじみながら冷却固化するので、従来のよう
に垂れることなく、長手方向及び幅方向の裏面形状が均
一でかつ裏面平滑な押出品を得ることができる。PV leading from extrusion barrel (not shown) to extrusion head/
The molten synthetic toilet seat material S such as C is placed on the conveyor [fi+'1 of the belt conveyor and extruded from the olive chair of the extrusion die 2. Naturally, the belt competition +5 can convey the extruded product M by the drive roller 7 in synchronization with the extrusion speed. At this time, the smooth conveying surface ll is formed to follow the shape of the back surface of the extruded product M, and is at the same height as the lower side of the orifice, and the extruded product M in a semi-molten state has its back surface as the conveying surface. Since the extruded product cools and solidifies while adapting to the l, it is possible to obtain an extruded product with a uniform back surface shape in the longitudinal direction and width direction and a smooth back surface without sagging as in conventional products.

本発明の押出品の製造方法及びその装置は、−上記のよ
うな構成なので、長手方向及び幅方向の裏面形状が均一
でかつ裏面平滑な押出品を容易に製造できる。従って、
本発明を適用したサイドモールを両面テープを用いてボ
ディ側部に装着する際、全長にわたり全面均一貼着が可
能となり接着性が向上する。また、従来のような押出品
にテンション（引張ローラによる）をかける搬送をしな
いので、冷却固化後の押出品の収縮率が小さくなり、後
アニール工程を廃止することができる等の効果を奏する
。The extruded product manufacturing method and apparatus of the present invention have the above-described configuration, so it is possible to easily manufacture an extruded product with a uniform back surface shape in the longitudinal direction and width direction and a smooth back surface. Therefore,
When the side molding to which the present invention is applied is attached to the side of the body using double-sided tape, uniform adhesion over the entire length is possible, improving adhesiveness. Furthermore, since the extruded product is not conveyed under tension (using a tension roller) as in the conventional method, the shrinkage rate of the extruded product after cooling and solidification is reduced, and a post-annealing process can be eliminated.

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

第１図は本発明の装置の要部を示す概略断面図、第２図
は従動ローラが上面平担な場合の第１図のＡ−Ａ線断面
図、第３図は従動ローラが−に面ｌく形状の場合の第１
図のＡ−Ａ線断面図である。 ２・・押出ダイ、３・・・オリフィス下側、グ　搬送面
、夕・・・ベルトコンベヤ、乙、乙Ａ・・・従動ローラ
７・・・駆動ローラ、Ｍ・・・押出品。 特　　許　　出　　願　　人 豊田合成株式会社 ヒ一−ＪFig. 1 is a schematic sectional view showing the main parts of the device of the present invention, Fig. 2 is a sectional view taken along the line A-A in Fig. 1 when the driven roller is flat on the top, and Fig. 3 is a schematic sectional view showing the main parts of the device of the present invention. The first case of a square shape
It is a sectional view taken along the line AA in the figure. 2... Extrusion die, 3... Orifice lower side, G conveyance surface, D... Belt conveyor, Otsu, Otsu A... Followed roller 7... Drive roller, M... Extruded product. Patent application: Toyoda Gosei Co., Ltd.

Claims (2)

【特許請求の範囲】[Claims] （１）合成樹脂製の押出品を製造するに際し、押出直後
の押出品を、冷却固化するまで押出品の裏面形状に沿う
平滑な搬送面を備えたベルトコンベヤで搬送することを
特徴とする押出品の製造方法。(1) When producing an extruded product made of synthetic resin, the extruded product immediately after extrusion is transported by a belt conveyor equipped with a smooth conveying surface that follows the shape of the back surface of the extruded product until it is cooled and solidified. The manufacturing method of the item. （２）合成樹脂製の押出品の製造装置において、押出ダ
イの押出品裏面を形成するオリフィス下側と同一高さ位
置に連続して、押出品の裏面形状に沿うように形成され
た平滑な搬送面がくるようにベルトコンベヤが配設され
ていることを特徴とする押出品の製造装置。(2) In an apparatus for manufacturing extruded products made of synthetic resin, a smooth orifice formed continuously at the same height as the lower side of the orifice that forms the back surface of the extruded product of the extrusion die, and that follows the shape of the back surface of the extruded product. An extruded product manufacturing device, characterized in that a belt conveyor is arranged so that the conveying surface faces the belt conveyor.
JP57014065A 1982-01-29 1982-01-29 Manufacturing method and device for extruded product Pending JPS58131050A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP57014065A JPS58131050A (en) 1982-01-29 1982-01-29 Manufacturing method and device for extruded product

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP57014065A JPS58131050A (en) 1982-01-29 1982-01-29 Manufacturing method and device for extruded product

Publications (1)

Publication Number Publication Date
JPS58131050A true JPS58131050A (en) 1983-08-04

Family

ID=11850685

Family Applications (1)

Application Number Title Priority Date Filing Date
JP57014065A Pending JPS58131050A (en) 1982-01-29 1982-01-29 Manufacturing method and device for extruded product

Country Status (1)

Country Link
JP (1) JPS58131050A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5242742A (en) * 1990-06-09 1993-09-07 Roehm Gmbh Chemische Fabrik Extruded solid plastic sheet or film

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5242742A (en) * 1990-06-09 1993-09-07 Roehm Gmbh Chemische Fabrik Extruded solid plastic sheet or film
US5286436A (en) * 1990-06-09 1994-02-15 Rohm Gmbh Chemische Fabrik Producing extruded solid plastic sheet and film

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