JPS60132728A - Extrusion die apparatus for molding synthetic resin - Google Patents

Extrusion die apparatus for molding synthetic resin

Info

Publication number
JPS60132728A
JPS60132728A JP58242376A JP24237683A JPS60132728A JP S60132728 A JPS60132728 A JP S60132728A JP 58242376 A JP58242376 A JP 58242376A JP 24237683 A JP24237683 A JP 24237683A JP S60132728 A JPS60132728 A JP S60132728A
Authority
JP
Japan
Prior art keywords
extrusion die
sizing former
extrusion
die device
sizing
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
JP58242376A
Other languages
Japanese (ja)
Other versions
JPH0375335B2 (en
Inventor
Tadao Matsuo
松尾　唯男
Shuji Mori
森　周二
Nobuo Yokota
横田　伸夫
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.)
Mitsuboshi Belting Ltd
Original Assignee
Mitsuboshi Belting 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 Mitsuboshi Belting Ltd filed Critical Mitsuboshi Belting Ltd
Priority to JP58242376A priority Critical patent/JPS60132728A/en
Publication of JPS60132728A publication Critical patent/JPS60132728A/en
Publication of JPH0375335B2 publication Critical patent/JPH0375335B2/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
    • B29C48/03—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
    • B29C48/06—Rod-shaped
    • 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
    • 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
    • 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
    • B29C48/904—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 using dry calibration, i.e. no quenching tank, e.g. with water spray for cooling or lubrication
    • 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
    • B29C48/908—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 characterised by calibrator surface, e.g. structure or holes for lubrication, cooling or venting
    • 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
    • B29C48/919—Thermal treatment of the stream of extruded material, e.g. cooling using a bath, e.g. extruding into an open bath to coagulate or cool the material
    • 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
    • B29C48/911—Cooling
    • B29C48/9115—Cooling of hollow articles
    • B29C48/912—Cooling of hollow articles of tubular films
    • B29C48/913—Cooling of hollow articles of tubular films externally
    • 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
    • B29C48/911—Cooling
    • B29C48/9135—Cooling of flat articles, e.g. using specially adapted supporting means
    • 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
    • B29C48/94—Lubricating

Landscapes

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

Abstract

PURPOSE:To smoothly extrude various resins under high back pressure, by applying sliding imparting processing to the interior of a sizing former neck part ranging from the inlet part of a sizing former part to a cooling jacket. CONSTITUTION:A heating apparatus 4 is provided to the external surface of a mold 1 and water cooled jackets 7, 8 are mounted to the outside of a sizing former part 3. A surface sliding imparting layer 10 is provided to the inner surface of a sizing former neck part 9 near to the inlet of the passage 6 of the sizing former part 3 to prevent the deposition of a molded body, held under a semi- molten state, at the neck part 9.

Description

【発明の詳細な説明】 本発明は、・合成樹脂成形用押出ダイ装置に係り、詳し
ぐは６ナイロン、ポリアセクール、ポリブチレジテレフ
タレニ１、ポリエチレンテレフタレート、等の高結晶性
の熱可塑性樹脂ペレットから種々の形状を持つ成形体を
容易に成形できる合成樹脂成形用押出ダイ装置：に関す
るものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an extrusion die device for molding synthetic resins, in particular, highly crystalline thermoplastic resin pellets such as nylon 6, polyacecool, polybutylene terephthalene 1, polyethylene terephthalate, etc. This invention relates to an extrusion die device for molding synthetic resins that can easily mold molded bodies of various shapes.

一般に高結晶性の熱可塑性樹脂ペレットを棒状、板状又
は異形状に押出成形するために使用されるスクリュー押
出装置は、材料供給用ホッパー、加熱装置を具備したシ
リンダー、該シリンダー中に挿入され回転運動するスク
リューからなるスクリュー押出機の先端に加熱装置付の
押出ダイ装置が装着され、該ダイ装置の先端部には水冷
ジャケット付のサイジングフォーマ一部が取付けられて
いる。そして、かかる押出装置には押出成形品を水冷し
て形状を保持させるための水槽そして押出成形品の中心
部のひけを解消させるための背圧用引取ゴムロールも順
々配−されている。Screw extrusion equipment, which is generally used to extrude highly crystalline thermoplastic resin pellets into rods, plates, or irregular shapes, consists of a material supply hopper, a cylinder equipped with a heating device, and a cylinder inserted into the cylinder that rotates. An extrusion die device with a heating device is attached to the tip of a screw extruder consisting of a moving screw, and a portion of a sizing former with a water cooling jacket is attached to the tip of the die device. The extrusion apparatus is also equipped with a water tank for water-cooling the extruded product to maintain its shape, and a back pressure take-up rubber roll for eliminating sink marks in the center of the extruded product.

ところが、上記押出装置を使用して高結晶性樹脂ペレッ
トを押出成形する場合、押出成形品の中心部に発生する
髭を解消するために引取ゴムロールによって押出成形品
め押え圧力を高くして押出し樹脂圧を高くする必要があ
るが、特に高速押出特高背圧にした場合押出成形品が押
出ダイ装置のサイジングフオーマーネンク部で直径方向
へ膨張し同部内面へ固着するためｉ連続して押出成形す
るのが困難であった。However, when extruding high-crystalline resin pellets using the extrusion device described above, in order to eliminate the whiskers that occur in the center of the extruded product, the pressing pressure of the extruded product is increased using a take-up rubber roll, and the extruded resin is It is necessary to increase the pressure, but especially when high back pressure is used for high-speed extrusion, the extruded product expands in the diametrical direction at the sizing former part of the extrusion die device and sticks to the inner surface of the same part, so it is necessary to extrude continuously. It was difficult to mold.

本発明はこのような欠点を数倍し、６ナイロン、６．６
ナイロン、ポリアセタール、ポリブチレンテレフタレー
ト、ポリエチレンテレフタレート等の高結晶性樹〃ｕを
スクリュー押出成形するに際し、押出ダイのサイジング
フォーマ−ネック部で溶融樹脂が高背圧のために発生す
る固着現象を抑制して押出成形品をスムーズに押出し、
しかも雫のない成形体を連続に成形できる合成樹脂成形
用押出ダイ装置を提供するものであり、その要旨とする
ところはスクリュー押出機に連結される押出ダイ装置で
あって、該押出ダイ装置が外面に加熱装置を具備しかつ
内部に押出成形体の、通路４を有す、る金型と該金型に
連結され冷却ジャケットを装着したサイジングフォーマ
一部から構成さ外乱か本上記サイジングフォーマ−〇！
Ｓの入口部から冷却ジャ、１ゲツトまでに相当するサイ
ジングフォーマ−ネック部の内部が耐滑加工されている
合成樹脂成形用押出ダイ装置にある。The present invention multiplies these drawbacks and uses nylon 6, 6.6
When screw-extruding highly crystalline resins such as nylon, polyacetal, polybutylene terephthalate, and polyethylene terephthalate, this product suppresses the sticking phenomenon that occurs due to high back pressure of the molten resin at the sizing former neck of the extrusion die. to extrude the extruded product smoothly,
Moreover, the present invention provides an extrusion die device for synthetic resin molding that can continuously mold a molded product without dripping, and its gist is an extrusion die device connected to a screw extruder, in which the extrusion die device The above-mentioned sizing former is composed of a mold having a heating device on its outer surface and a passageway 4 for an extrusion molded product inside, and a part of a sizing former connected to the mold and equipped with a cooling jacket. 〇!
This extrusion die device for molding synthetic resin has an anti-slip finish on the inside of the neck of the sizing former, which corresponds to the area from the inlet of S to the cooling jar and one get.

次に本発明を図面に用いて説明する。Next, the present invention will be explained using the drawings.

第１図は本発明に係る合成樹脂成形押出ダイ装置の縦断
面図であり、該ダイ装置（１）は、金型（２）とこれに
連結したサイジングフォーマ一部（３）の２つから構成
されており、該金型（１）は外部表面に加熱装置（４）
を具備していると共に、内部において押出成形体の通路
（５）を有しているが、前記通路（５）は途中で径を細
くした領域と、また径を大きくした３段階の内径をもっ
ており、一方、サイジングフォーマ一部（３）は一定の
径をもつ通路（６）を有していると共に外部に水冷ジャ
ケット（７）、（８）を装置している。FIG. 1 is a longitudinal cross-sectional view of a synthetic resin molding extrusion die device according to the present invention, and the die device (1) consists of two parts: a mold (2) and a sizing former part (3) connected thereto. The mold (1) has a heating device (4) on its outer surface.
It also has a passageway (5) of the extruded molded body inside, but the passageway (5) has a region with a narrower diameter in the middle and an inner diameter of three stages with a larger diameter. On the other hand, the sizing former part (3) has a passage (6) with a constant diameter and is provided with water cooling jackets (7) and (8) on the outside.

しかして、上記サイジングフォーマ一部（３）の通路に
（６）あって入口に近いサイジングフォーマ−ネック部
（９）の内面には、半溶融の押出樹脂が固着するのを防
止するために表面附滑層（１０）があり、□　かかる附
滑層（１０）は、例えばまず表面に硬質クロムメッキを
施してこのメッキ層に袋状の微細な亀裂を化学的に作り
、更に加熱して亀裂を拡大させ、その後この表面に四弗
化樹脂を埋め込んで表面コートさせたもの、あるいは車
に硬質タームメッキあるいは四弗化樹脂を表面に焼付コ
ートさせてルよい。Therefore, the inner surface of the sizing former neck part (9) located in the passageway (6) of the sizing former part (3) and close to the inlet is provided with a surface to prevent the semi-molten extruded resin from sticking. There is an attached layer (10). □ The attached layer (10) is formed by, for example, first applying hard chrome plating to the surface, chemically creating bag-shaped minute cracks in this plated layer, and then heating it to remove the cracks. The surface of the car may be enlarged and then coated with tetrafluoride resin, or the surface of the car may be hard term plated or coated with tetrafluoride resin by baking.

このようにして得られた表面附滑層（１ｏ）の厚みは０
．０１〜０．ｈｎであり、サイジングフォーマ−ネック
部（９）の内面稈段差のない同一面になっている。The thickness of the surface slip layer (1o) obtained in this way is 0.
．． 01~0. hn, and the inner culm of the sizing former neck part (9) is on the same surface with no step.

な勢前記サイジングフォーマーネック部（９）はサイジ
ングフォーマ一部（３）全長の１／３以内であるが、サ
イジングフォーマ一部（３）の先端：部と水冷ジャケッ
ト（７）１、間の距離がサイジングフォーマ一部（３）
全長の１７３以内であり、特にこの間で押出成形体が半
檀融状態となって固、着し易いためである。　。The sizing former neck part (9) is within 1/3 of the total length of the sizing former part (3), but the length between the tip of the sizing former part (3) and the water cooling jacket (7) 1 is Distance is part of the sizing former (3)
The length is within 173 mm of the total length, and this is because the extrusion molded product becomes a semi-molten state during this period and is likely to harden and adhere. .

しかし、表面耐滑加工はサイジングフォーマ−ネック部
（８）の全長にわたり施してもよい。However, the surface anti-slip treatment may be applied over the entire length of the sizing former neck (8).

このような、押出ダイ装置（１）は、警２図に示される
ように表面に加や装置、（１１）、（１２）、（１３）
を具備し端部に原料を投入するポツパー（１４）を有す
る円筒形のシリンダー（１５）内にスクリュー（１６）
を挿入てなるスクリュー押出機（１７）の出口にボルト
、ナツトで連結され、そし−て押出ダイ装置（１）の入
口には複数個の穴をもつブレーカ−プレート（１８）が
挿入され溶融樹脂の流れを調整している。Such an extrusion die device (1) has surface adding devices, (11), (12), (13) as shown in Figure 2.
A screw (16) is placed inside a cylindrical cylinder (15) with a popper (14) at the end for introducing raw materials.
A breaker plate (18) with a plurality of holes is inserted into the inlet of the extrusion die device (1), and a breaker plate (18) with a plurality of holes is inserted into the inlet of the extrusion die device (1). adjusting the flow of

また、スクリュー押出機（１７）に連結された押出ダイ
装置（１）の出口前方には水槽（１９）が設けられて押
出成形体（２０）を冷却固化し、更に前方にはゴムロー
ル（２１）　（２２）があり押出成形体く２０）に適切
な背圧を与えて連続的に成形体を押出すように−なって
いる。In addition, a water tank (19) is provided in front of the exit of the extrusion die device (1) connected to the screw extruder (17) to cool and solidify the extrusion molded product (20), and a rubber roll (21) is provided in front of the extrusion die device (17). (22) is provided so that appropriate back pressure is applied to the extrusion molded body (20) to continuously extrude the molded body.

このような押出ダイ装置（１）をスクリュー押出機（１
７）に連結して使用すると、押出ダイ装置（１）の金型
（２）から押出された半溶融状態の成形体は、サイジン
グフォーマ−ネック部（９）で何ら固着せずにスムーズ
に押出され、しかも押出成形体に背圧を付与してもこれ
に関して何ら影響を受けるものではない。Such an extrusion die device (1) is connected to a screw extruder (1).
7), the semi-molten molded product extruded from the mold (2) of the extrusion die device (1) is extruded smoothly without any sticking at the sizing former neck (9). Moreover, even if back pressure is applied to the extrudate, this will not be affected in any way.

次に、本考案に係る押出ダイ装置の使用効果を確認する
ため、以下に具体的な実施例を詳述する。Next, in order to confirm the effects of using the extrusion die device according to the present invention, specific examples will be described in detail below.

実施例　ｌ 内径が５５ｍ＋ｉ、長さ２０００ｍのシリンダー中にス
クリューを挿入した日本製鋼所社ＭＰ−６５−２２ＡＢ
型スクリュー押出機にサイジングフォーマ−ネック部内
面にテロフッタ加工（人聞クローム鍍金社製）の耐滑処
理を施した本発明に係る押出ダイを連結し、その前方に
水槽および２つのゴムロールを配置したスクリュー押出
成形装置（第２図に示される）を用いして第１表に示さ
れる押出条件でポリアセクールコポリマーペレット（商
品名；ウルトラフォルムＨ２３２０ｉＢＡＳＦ社製）を
丸棒に押出成形したところ、たとえ高樹脂圧力が３０〜
５０ｋｇ／ｃＪでも押出成形体はサイジングフォーマ−
ネック部内面へ固着せず、第３図に示されるように外径
１００ｍｍの丸棒が連続的に押出成形できた。押出成形
体は外観および直円度において良好で、中心部において
髭を有していなかった。Example 1 Japan Steel Works MP-65-22AB with a screw inserted into a cylinder with an inner diameter of 55 m + i and a length of 2000 m
A sizing former screw extruder is connected to an extrusion die according to the present invention having anti-slip treatment on the inner surface of the neck part of the sizing former, and a water tank and two rubber rolls are arranged in front of the extrusion die. When polyacecool copolymer pellets (trade name: Ultraform H2320i manufactured by BASF) were extruded into a round bar using an extrusion molding apparatus (shown in Figure 2) under the extrusion conditions shown in Table 1, even if the Resin pressure is 30~
Even at 50kg/cJ, the extrusion molded product is a sizing former.
As shown in FIG. 3, a round bar with an outer diameter of 100 mm could be continuously extruded without sticking to the inner surface of the neck part. The extrudate had good appearance and roundness, and had no whiskers in the center.

第１表 比較例　１゜ サイジングフォーマ−ネック部内面にテフロンク加工を
施さない以外は前記実施例１と同様な条件でポリアセタ
ールコポリマーペレットをスクリュー押出成形して丸棒
の成形を試みたところ、樹脂圧３０ｋｇ／ａｆ１以上で
は押出樹脂がサイジングフォーマ−ネック部に固着し連
続押出ができなくなった（第４図参照）。また、樹脂圧
が３０ｋｇ／ｃ１ａ）以下となるよう引取ロール圧力を
調節して背圧を低くすれば連続押出が可能であったが、
押出された先棒の中心部に直径約５鶴程度の髭が発生し
た。Table 1 Comparative Example 1゜Sizing Former - When attempting to mold a round bar by screw extrusion molding a polyacetal copolymer pellet under the same conditions as in Example 1 except that the inner surface of the neck part was not Teflon processed, the resin pressure At 30 kg/af1 or more, the extruded resin stuck to the neck of the sizing former, making continuous extrusion impossible (see Fig. 4). Continuous extrusion was also possible by adjusting the take-up roll pressure and lowering the back pressure so that the resin pressure was 30 kg/c1a) or less.
A whisker with a diameter of about 5 cranes was generated in the center of the extruded tip rod.

実施例　２ 実施例１と同じスクリ、”ニー押出成形装門を用いてモ
ノマーキャストナイロン（三ツ星ベルト社製；三ツ星キ
ャストナイロ□ンＮＡ）より再生した６ナイロンペレツ
トを丸棒呻押出成形（たとこ゛ろサイジングフォーマー
ネッ多部吻面への固着現象がなく、樹脂圧が１５〜３５
ｋｇ／−の範囲で外径１００ｉｎの丸棒が連続的に押出
成形できた。押出成形体の外観及び真円度は良好でかつ
丸棒断面の中心部には髭は存在しなかった。Example 2 Nylon 6 pellets recycled from monomer cast nylon (manufactured by Mitsuboshi Belting Co., Ltd.; Mitsuboshi Cast Nylon NA) using the same screen and knee extrusion molding as in Example 1 were extruded into round rods. There is no sticking phenomenon to the proboscis surface of many parts of the sizing former, and the resin pressure is 15 to 35.
A round bar with an outer diameter of 100 inches could be continuously extruded within the range of kg/-. The external appearance and roundness of the extruded product were good, and there were no whiskers in the center of the cross section of the round bar.

第２表に押出条件を示す。Table 2 shows the extrusion conditions.

第２表 比較例　２゜ サイジングフォーマ−ネック部内面にテフロンク加工を
施さない以外は前記実施例２と全く同様な条件でモノマ
ーキャストナイロン再生６ナイロンペレットをスクリュ
ー押出成形して丸棒の成形を試みたところ、樹脂圧１５
ｋｇ／−以上では押出樹脂がサイジングフォーマ−ネッ
ク部に固着し連続押出ができなくなった。また、樹脂圧
が１０ｋｇ／ｃＡ以下となるよう引取ロール圧力を調節
して背圧を低くすれば連続押出が可能であったが、押出
成形された丸棒断面の中心部に直径約１０１ｍ程度の髭
が発生した。Table 2 Comparative Example 2゜Sizing former - Attempt to form a round bar by screw extrusion molding monomer cast nylon recycled 6 nylon pellets under the same conditions as in Example 2 except that the inner surface of the neck part was not Teflon processed. However, the resin pressure was 15
kg/- or more, the extruded resin stuck to the neck of the sizing former, making continuous extrusion impossible. Continuous extrusion was possible by lowering the back pressure by adjusting the take-up roll pressure so that the resin pressure was 10 kg/cA or less, but a diameter of about 101 m was found in the center of the extruded round bar cross section. A beard appeared.

以上のように本発明の押出ダイ装置は、樹脂の種類に関
係なく高背圧力下のもとで連続して押出成形でき、しか
も成形体の内部にも朝が発生しなくなる等の効果を有し
□ている。As described above, the extrusion die device of the present invention can perform continuous extrusion molding under high back pressure regardless of the type of resin, and has the effect of preventing molding from occurring inside the molded product. I am doing □.

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

第１図は、本発明に係る合成樹脂成形用押出ダイ装置の
縦断面図、第２図は第１図に示される押出ダイ装置を用
いた。スクリュー押出成形装置の断面図、第３図は本発
明に係る押出ダイ装置を使用した場合の押出経時と樹脂
圧の関係、そして第４図は従来の押出ダイ装置を使用し
た場合の押出経時と樹脂圧との関係を示す。 （１）・・・−・−押出ダイ装置　（２）−・・−ミー
一一金型（３）−・−・−・−サイジングフォーマ一部
（４１−−−−−−−・−加熱装置　（５１（６１・−
・・・−通路Ｔ７）　＋８１−−−−−一水冷ジャケッ
ト（９）・−・・−サイジングフォーマ−ネック部α０
−・・−−−−−一表面附着層 特許出願人　三ツ星ベルト株式会社 手続補正書（自発） 昭和５９年　７月ミＯ日 特許庁長官　殿 １、事件の表示　ぢへ 昭和５８年特許願第２４２３７６号 ２、発明の名称 合成樹脂成形用押出ダイ装置 ３、補正をする者 ・事（牛との関係　特許出願人 住所　神戸市長田区浜添ｉ［１４丁目１番２１号名称　
（６０６）三ソ星ベルト株式会社６、補正の対象 明細書、特に発明の詳細な説明の欄 ＋１１　明細書第４頁の第１２行目〜１３行目の「通路
に（６）あって」を［通路（６）にあって」と補正する
。 （２）明細書第７頁の第１６行目〜１７行目の「直円度
」を「真円度」と補正する。 以　上FIG. 1 is a longitudinal sectional view of an extrusion die device for molding synthetic resin according to the present invention, and FIG. 2 shows the extrusion die device shown in FIG. 1 used. A cross-sectional view of the screw extrusion molding device, FIG. 3 shows the relationship between extrusion time and resin pressure when using the extrusion die device according to the present invention, and FIG. 4 shows the relationship between extrusion time and resin pressure when using the conventional extrusion die device. The relationship with resin pressure is shown. (1)...--Extrusion die device (2)---Mie 11 mold (3)-------Part of the sizing former (41---Heating Device (51 (61・-
...-Passage T7) +81--Water cooling jacket (9)--Sizing former neck part α0
−・・−−−−−One surface adhesion layer patent applicant Mitsuboshi Belting Co., Ltd. Procedural amendment (voluntary) Commissioner of the Japan Patent Office July 1982 No. 242376 No. 2, Name of the invention Extrusion die device for synthetic resin molding 3, Person making the amendment (relationship with cows) Patent applicant address: 14-1-21 Hamazoe I, Nagata-ku, Kobe Name
(606) Sanso Star Belting Co., Ltd. 6, Specification to be amended, especially column for detailed explanation of the invention +11 “In the passage (6)” on page 4 of the specification, lines 12 to 13 is corrected to ``in the aisle (6)''. (2) "Right circularity" in lines 16 to 17 on page 7 of the specification is corrected to "roundness."that's all

Claims (1)

【特許請求の範囲】[Claims] １、　スクリュー押出機に連結される押出ダイ装置であ
って、・該・押出ダイ装置が外面に加熱装置を具備しか
つ内部に押出成形体の通路を有する金型と、該金・型に
連結され冷却ジャケット、を装着したサイジングフォー
マ一部から構成され、しかも上記サイジングラオ゛−マ
゛一部の入口部分から冷却ジャケットまでに相当するサ
イジングフォーマ−ネック部潰内面に耐滑加工層が設け
られていることを特徴′とする合成樹脂成形用押出ダイ
装置。1. An extrusion die device connected to a screw extruder, the extrusion die device including a mold having a heating device on the outside and a passage for the extruded product inside, and a mold connected to the mold. It consists of a part of the sizing former equipped with a cooling jacket, and an anti-slip layer is provided on the collapsed inner surface of the neck of the sizing former, which corresponds to the part of the sizing former from the inlet part to the cooling jacket. An extrusion die device for synthetic resin molding, characterized in that:
JP58242376A 1983-12-21 1983-12-21 Extrusion die apparatus for molding synthetic resin Granted JPS60132728A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP58242376A JPS60132728A (en) 1983-12-21 1983-12-21 Extrusion die apparatus for molding synthetic resin

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP58242376A JPS60132728A (en) 1983-12-21 1983-12-21 Extrusion die apparatus for molding synthetic resin

Publications (2)

Publication Number Publication Date
JPS60132728A true JPS60132728A (en) 1985-07-15
JPH0375335B2 JPH0375335B2 (en) 1991-11-29

Family

ID=17088245

Family Applications (1)

Application Number Title Priority Date Filing Date
JP58242376A Granted JPS60132728A (en) 1983-12-21 1983-12-21 Extrusion die apparatus for molding synthetic resin

Country Status (1)

Country Link
JP (1) JPS60132728A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1758072A3 (en) 2005-08-24 2007-05-02 Semiconductor Energy Laboratory Co., Ltd. Display device and driving method thereof

Also Published As

Publication number Publication date
JPH0375335B2 (en) 1991-11-29

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