JPH037322A - Solidifying extrusion molding apparatus - Google Patents
Solidifying extrusion molding apparatusInfo
- Publication number
- JPH037322A JPH037322A JP2016742A JP1674290A JPH037322A JP H037322 A JPH037322 A JP H037322A JP 2016742 A JP2016742 A JP 2016742A JP 1674290 A JP1674290 A JP 1674290A JP H037322 A JPH037322 A JP H037322A
- Authority
- JP
- Japan
- Prior art keywords
- block
- former
- extruder
- resin
- back pressure
- 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
- 238000001125 extrusion Methods 0.000 title claims description 18
- 229920005989 resin Polymers 0.000 claims abstract description 17
- 239000011347 resin Substances 0.000 claims abstract description 17
- 238000000465 moulding Methods 0.000 claims abstract description 11
- 229920003002 synthetic resin Polymers 0.000 claims abstract description 8
- 239000000057 synthetic resin Substances 0.000 claims abstract description 8
- 229920001169 thermoplastic Polymers 0.000 claims abstract description 7
- 239000004416 thermosoftening plastic Substances 0.000 claims abstract description 7
- 238000001816 cooling Methods 0.000 claims description 10
- 238000007711 solidification Methods 0.000 claims description 10
- 230000008023 solidification Effects 0.000 claims description 10
- 238000010438 heat treatment Methods 0.000 claims description 9
- 230000001105 regulatory effect Effects 0.000 abstract 2
- 238000004519 manufacturing process Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000002826 coolant Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 235000012438 extruded product Nutrition 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000004809 Teflon Substances 0.000 description 1
- 229920006362 Teflon® Polymers 0.000 description 1
- 229920006038 crystalline resin Polymers 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 229920005992 thermoplastic resin Polymers 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は固化押出し成形装置に係り、詳しくは溶融軟化
した熱可塑性合成樹脂に背圧をかけつつ押出して、板状
体、棒状体或いは異形型材等を製造するための固化押出
し成形装置に関するものである。Detailed Description of the Invention (Industrial Field of Application) The present invention relates to a solidification extrusion molding device, and more specifically, it extrudes a melted and softened thermoplastic synthetic resin while applying back pressure to form a plate-like object, a rod-like object, or an odd-shaped object. The present invention relates to a solidification extrusion molding device for manufacturing mold materials and the like.
（従来技術とその課題）
従来、熱可塑性合成樹脂、特に結晶性樹脂を溶融押出し
つつ、該溶融軟化樹脂を背圧下でフォーマ−によって所
定形状に賦形する固化押土し装置は知られている。(Prior Art and its Problems) Conventionally, a solidification dosing device is known that melts and extrudes a thermoplastic synthetic resin, particularly a crystalline resin, and shapes the melted and softened resin into a predetermined shape using a former under back pressure. .
上記固化押出しにおいては、押出し成形品の肉厚中心部
に発生するひけと云う冷却収縮現象を防止するため、押
出し量、押出し速度と引取り速度とを調節し、溶融軟化
中に賦形と共に背圧を高めないと品質の優れた製品が得
られない。In the above-mentioned solidification extrusion, in order to prevent the cooling shrinkage phenomenon called sink mark that occurs in the thick center of the extruded product, the extrusion amount, extrusion speed, and take-up speed are adjusted, and the Unless the pressure is increased, high-quality products cannot be obtained.
また、使用する樹脂の種類、押出し成形品の形状、肉厚
等によってフォーマ−内の溶融樹脂の流れが一様ではな
く、従って押出し成形中の成形品の内部に発生する歪か
アンバランスとなり易く、やはり品質の優れた製品を得
ることは困難である。 そのため、特に押出し機の口金
内部のマンドレルの形状を変えて、肉厚中心部の溶融樹
脂の固化を促進したり、フォーマ−の冷却ゾーンの内面
に油を注入して、冷却しつつ押出し抵抗を減少させる等
の成形方法がある。In addition, the flow of molten resin within the former is not uniform depending on the type of resin used, the shape of the extruded product, the wall thickness, etc., and therefore distortion or imbalance is likely to occur inside the molded product during extrusion molding. However, it is still difficult to obtain products of excellent quality. Therefore, in particular, we changed the shape of the mandrel inside the extruder nozzle to promote the solidification of the molten resin in the thick center part, and injected oil into the inner surface of the cooling zone of the former to reduce extrusion resistance while cooling. There are molding methods such as reducing the amount.
しかしながら、上記成形方法に用いる装置は複雑で、操
作上煩雑であると云う問題を抱えていると共に、押出し
量が制限されると云う製造コスト上の問題を残している
。However, the apparatus used in the above-mentioned molding method has the problem that it is complicated and complicated to operate, and there remains a problem in terms of manufacturing cost that the amount of extrusion is limited.
（課題を解決するための手段）
本発明は上記課題を解決するための装置であって、その
要旨は、熱可塑性合成樹脂を押出し機より溶融押出しつ
つ、溶融樹脂に背圧をかけて賦形固化するための成形装
置であって、押出し機と引取り機との間に配設するフォ
ーマ−には、加熱と冷却とを任意に切換え選択できる温
度調節ブロックを設け、該ブロックが押出し方向に直交
配列して複数個組み込まれていることを特徴とし、また
押出し機の口金に連続して分岐アダプターを配設すると
共に、該分岐アダプターに、上記温度調節ブロックから
なるフォーマ−を複数列連設したことを特徴とする固化
押出し成形装置である。(Means for Solving the Problems) The present invention is an apparatus for solving the above problems, and its gist is to melt and extrude a thermoplastic synthetic resin from an extruder, and apply back pressure to the molten resin to shape it. The former is a molding device for solidification, and is installed between an extruder and a take-off machine, and is equipped with a temperature control block that can arbitrarily switch between heating and cooling. It is characterized in that a plurality of formers are installed in an orthogonal arrangement, and a branch adapter is continuously disposed in the mouthpiece of the extruder, and a plurality of formers made of the above-mentioned temperature control blocks are connected to the branch adapter in series. This is a solidification extrusion molding device characterized by the following.
以下本発明の実施例を図面により具体的に説明する。Embodiments of the present invention will be specifically described below with reference to the drawings.
第１図は本発明の第１実施例を示す側面図であり、第２
図は本発明の第１実施例装置への導入部を説明するため
の平面図であり、第３図は本発明の第２実施例装置への
導入部を説明するための一部切欠側面図であり、第４図
は本発明の第２実施例を示す側面図である。FIG. 1 is a side view showing the first embodiment of the present invention, and FIG.
The figure is a plan view for explaining the introduction part to the apparatus according to the first embodiment of the present invention, and FIG. 3 is a partially cutaway side view for explaining the introduction part to the apparatus according to the second embodiment of the present invention. FIG. 4 is a side view showing a second embodiment of the present invention.
本発明は、熱可塑性合成樹脂を押出し機１より溶融押出
しつつ、溶融樹脂に背圧をかけて賦形固化するための成
形装置であって、第１図に側面図で例示する如く、押出
し機１の口金２と引取り機４の間に配設するフォーマ−
３には、加熱と冷却とを任意に切換えできる温度調節ブ
ロックの第１ブロツク３１〜第４ブロツク３４を具え、
該各ブロックが押出し方向に直交配列して組み込まれて
いる。The present invention is a molding device for shaping and solidifying a thermoplastic synthetic resin by applying back pressure to the molten resin while melting and extruding it from an extruder 1.As illustrated in a side view in FIG. A former installed between the base 2 of 1 and the take-up machine 4
3 includes a first block 31 to a fourth block 34 of temperature control blocks that can arbitrarily switch between heating and cooling;
The blocks are assembled in an array orthogonal to the extrusion direction.
本発明で用いるフォーマ−３は、図示例では第１ブロツ
ク３１から第４ブロツク３４まで押出し方向に直交して
連設しであるが、複数個であればブロック数には拘束さ
れない。In the illustrated example, the formers 3 used in the present invention are arranged in series from the first block 31 to the fourth block 34 orthogonally to the extrusion direction, but as long as there are a plurality of formers, there is no restriction on the number of blocks.
上記フォーマ−３は、平板状成形品を成形するためのフ
ォーマ−であって、各ブロック３１゜３２．３３．３４
は、各々上金型３１１と下金型３１２間に側板３１３を
介して締付は具３１４により締結して組み立てられ、上
記上金型３１１と下金型３１２には幅方向、即ち押出し
方向に対し直交方向に、加熱媒体もしくは冷却媒体を通
す通孔３１５を各々複数孔穿設しである。The former 3 is a former for forming a flat plate-shaped molded product, and each block 31°, 32°, 33°, 34°
is assembled by fastening the upper mold 311 and the lower mold 312 with a side plate 313 and a fastening tool 314, and the upper mold 311 and the lower mold 312 have a widthwise direction, that is, an extrusion direction. On the other hand, a plurality of through holes 315 through which a heating medium or a cooling medium passes are formed in the orthogonal direction.
上記上下金型３１１，３１２に穿設した通孔３１５には
、直接蒸気や水等の媒体を通してもよく、加熱媒体や冷
却媒体を通すパイプもしくは棒状ヒーター等を挿着して
加熱、冷却を自在に行うことができる。The through holes 315 bored in the upper and lower molds 311 and 312 may be directly passed through a medium such as steam or water, or a pipe or rod-shaped heater for passing a heating medium or cooling medium can be inserted therein for heating and cooling. can be done.
本発明は、フォーマ−３内のブロック３１〜３４の個々
のブロックが、上記媒体による加熱、冷却により温度調
節できると共に、１ブロツク内の温度を一定にし、各ブ
ロック間で温度差をもたせるようブロック毎に温度調節
する機能をも具え、同一ブロック内或いはブロック間の
温度調節は同一媒体により、又は異種媒体により任意に
切換え得る。In the present invention, the temperature of each of the blocks 31 to 34 in the former 3 can be adjusted by heating and cooling with the above-mentioned medium, and the temperature of each block is kept constant and the temperature is made to be different between each block. It also has a function to adjust the temperature for each block, and the temperature adjustment within the same block or between blocks can be arbitrarily switched by using the same medium or by using different types of media.
通常、第１図の第１実施例のフォーマ−３においては、
３１．３２を加熱ブロックとし、３３．３４を冷却ブロ
ックとして使用する。Usually, in the former 3 of the first embodiment shown in FIG.
31.32 is used as a heating block and 33.34 is used as a cooling block.
上記フォーマ−３、即ち各ブロック毎の上金型、下金型
及び側板は、肉厚鉄製の耐圧仕様のもので、止金型の幅
方向及び長手方向を補強板３５で補強してあり、上記金
型により囲繞されな内高部の壁面は平滑に研磨仕上げの
うえテフロン等の弗素樹脂加工を施しである。The former 3, that is, the upper mold, lower mold, and side plate of each block, are made of thick iron and have pressure-resistant specifications, and the retaining mold is reinforced in the width direction and longitudinal direction with reinforcing plates 35. The wall surface of the inner height surrounded by the mold is polished to a smooth finish and then treated with a fluororesin such as Teflon.
上記フォーマ−３に隣接して設けられる引取り機４は、
駆動ロール４１．４１と連動する上下に配列した引取り
ロール４２を用い、成形品Ａがスリップしない程度に挟
圧しつつ成形品Ａを引取ると共に制動する。The take-up machine 4 provided adjacent to the former 3 is
Using take-up rolls 42 arranged vertically in conjunction with drive rolls 41 and 41, the molded product A is taken up and braked while being pinched to an extent that the molded product A does not slip.
上記引取り機４は、合成樹脂押出し機に付帯して通常使
用されるものであってもよいが、樹脂の種類、成形品の
肉厚によっては、背圧が増強でき或いは任意に引取り速
度を調整することができるものが好ましい。The above-mentioned take-off machine 4 may be one that is normally used in conjunction with a synthetic resin extruder, but depending on the type of resin and the thickness of the molded product, the back pressure can be increased or the take-off speed can be adjusted arbitrarily. It is preferable to use one that can be adjusted.
本発明を用いて固化押出しを行うには、先ず第１実施例
では、第２図に平面図で示す如く、押出し機１により溶
融混練された熱可塑性合成樹脂ａがスクリュー１１によ
り矢印方向へ押出され、口金２を通って絞り込まれつつ
フォーマ−３人口部の第１ブロツク３１内へ矢印方向に
吐出され、上金型３１１、下金型３１２、側板３１３に
囲繞された内高部に充填される。 次いで温度調節され
たフォーマ−３の第１ブロツク３１に吐出充填された溶
融樹脂ａは、第１図に示す引取り機４の制動に伴う背圧
を受けながら、第２ブロック３２．第３ブロツク３３及
び第４ブロツク３４内を順次移動する間に冷却固化され
つつ賦形され、引取り機４のロール４１４２群により成
形品Ａが引取られる。To carry out solidification extrusion using the present invention, first in the first embodiment, as shown in a plan view in FIG. The liquid is squeezed through the nozzle 2 and discharged into the first block 31 of the former 3 in the direction of the arrow, and is filled into the inner high part surrounded by the upper mold 311, the lower mold 312, and the side plate 313. Ru. Next, the molten resin a discharged and filled into the first block 31 of the temperature-controlled former 3 is transferred to the second block 32. While successively moving through the third block 33 and the fourth block 34, the molded product A is cooled and solidified and shaped, and the molded product A is taken off by a group of rolls 4142 of the take-off machine 4.
また、第２実施例では第３図に一部切欠側面図で示す如
く、押出し機ｌにより溶融混練された樹脂が口金２を通
り、分岐アダプター２１により流路を上下２１１，２１
１’に分岐し、溶融樹脂ａ、ａ’は各々フォーマ−３，
３′へ導入されるが、上段のフォーマ３の入口部では第
１ブロツク３１において上金型３１１、下金型３１２、
側板３１３に囲繞されな内高部に充填され、また下段の
フォーマ−３′の入口部では、第１ブロツク３１′にお
いて上金型３１１′、下金型３１２′、側板３１３′に
囲繞された内高部に充填される。In addition, in the second embodiment, as shown in a partially cutaway side view in FIG.
The molten resins a and a' are branched into formers 3 and 1', respectively.
3', but at the entrance of the upper former 3, in the first block 31, an upper mold 311, a lower mold 312,
The inner high part surrounded by the side plate 313 is filled, and at the entrance of the lower former 3', it is filled in the first block 31' surrounded by the upper mold 311', the lower mold 312', and the side plate 313'. The inner height is filled.
次いで、溶融樹脂ａ、ａ′は、第４図に示す２段式の引
取り機４．４′の制動に伴う背圧を受けながら、第２ブ
ロック３２．３２’、第３ブロック３３．３３′、第４
ブロック３４．３４′を順次移動する間に冷却固化され
つつ賦形され、引取りロール４．４′により成形品Ａ。Next, the molten resins a and a' are transferred to the second block 32.32' and the third block 33.33 while receiving back pressure due to the braking of the two-stage take-off machine 4.4' shown in FIG. ', 4th
The molded product A is cooled and solidified while being sequentially moved through the blocks 34 and 34', and is shaped by the take-up rolls 4 and 4'.
Ａ′が夫々引取られる。A' is taken respectively.
上記引取り機４．４′による引取りは、押出し機１の押
出し圧力をやや下回る制動力を加えつつ行う。The taking-off by the taking-off machine 4.4' is performed while applying a braking force slightly lower than the extrusion pressure of the extruder 1.
上記分岐アダプター２１では、溶融樹脂の流路を２本設
け、同時に上下２枚取り成形するものを示したが、３本
以上の流路を設けて３枚以上の成形品を同時に成形する
ようになしてもよく、或いは上記の上下多段式に代えて
、分岐アダプターを水平に設置し、水平方向に複数列の
フォーマ−を連設して成形するようにしてもよい
（発明の効果）
本発明は押出し機の口金と引取り機の中間にあって、ブ
ロック内或いはブロック間で任意に温度調節できるフォ
ーマ−を具えているので、熱可塑性樹脂の種類、成形肉
厚に応じて成形中の樹脂温が最適条件に設定され、また
引取り機による高い背圧を受けながら、溶融樹脂がフォ
ーマ−内を円滑に移動しつつ賦形されるので、成形中に
発生し勝ちなびけ現象がなくなり、外観品質の優れた成
形品が得られる。In the branch adapter 21 described above, two flow paths for molten resin are provided and two molded products are molded at the same time, one above the other. Alternatively, instead of the above-mentioned vertical multi-stage type, the branch adapter may be installed horizontally, and multiple rows of formers may be arranged in series in the horizontal direction for molding (effects of the invention). The is located between the mouthpiece of the extruder and the take-off machine, and is equipped with a former that can arbitrarily adjust the temperature within the block or between blocks, so the resin temperature during molding can be adjusted according to the type of thermoplastic resin and molding thickness. is set to the optimum conditions, and the molten resin is shaped while smoothly moving inside the former while receiving high back pressure from the take-off machine, eliminating the fluttering phenomenon that occurs during molding and improving the appearance quality. An excellent molded product can be obtained.
また、押出し機の口金に分岐アダプターを連設すること
により、複数個の成形品の成形が可能であり、且つその
構造並びに操作が簡単であるので、製造コストの削減効
果が大きい等の効果を奏する。In addition, by connecting a branch adapter to the extruder nozzle, it is possible to mold multiple molded products, and its structure and operation are simple, so it has the effect of greatly reducing manufacturing costs. play.
第１図は本発明の第１実施例を示す側面図であり、第２
図は本発明の第１実施例装置への導入部を説明するため
の平面図であり、第３図は本発明の第２実施例装置への
導入部を説明するための一部切欠側面図であり、第４図
は本発明の第２実施例を示す側面図である。
１・・・押出し機、 ２・・・口金、 ２１・
・・分岐アダプター、 ３，３′・・・フォーマ−
５３１〜３４．３１′〜３４′・・・温度調節ブロック
、４．４′・・・引取り機、
ａ、ａ′・・・溶融樹脂、 Ａ、Ａ’・・・成形品１
５８−FIG. 1 is a side view showing the first embodiment of the present invention, and FIG.
The figure is a plan view for explaining the introduction part to the apparatus according to the first embodiment of the present invention, and FIG. 3 is a partially cutaway side view for explaining the introduction part to the apparatus according to the second embodiment of the present invention. FIG. 4 is a side view showing a second embodiment of the present invention. 1... Extruder, 2... Mouthpiece, 21.
...Branch adapter, 3,3'...former
531-34. 31'-34'... Temperature control block, 4.4'... Taking machine, a, a'... Molten resin, A, A'... Molded product 1
58-
Claims (1)
溶融樹脂に背圧をかけて賦形固化するための成形装置で
あって、押出し機の口金と引取り機との間に配設するフ
ォーマーには、加熱と冷却とを任意に切換え選択できる
温度調節ブロックを設け、該ブロックが押出し方向に直
交配列して複数個組み込まれていることを特徴とする固
化押出し成形装置。 ２ 熱可塑性合成樹脂を押出し機より溶融押出しつつ、
溶融樹脂に背圧をかけて賦形固化するための成形装置で
あって、押出し機の口金に連続して分岐アダプターを配
設すると共に、該分岐アダプターに、加熱と冷却とを任
意に切換えできる温度調節ブロックからなるフォーマー
を複数列連設したことを特徴とする固化押出し成形装置
。[Claims] 1. While melt extruding a thermoplastic synthetic resin from an extruder,
It is a molding device that applies back pressure to molten resin to form and solidify it, and the former installed between the extruder nozzle and take-up machine has a temperature control system that allows you to arbitrarily switch between heating and cooling. A solidification extrusion molding apparatus characterized in that a plurality of adjustment blocks are provided and a plurality of the blocks are arranged orthogonally arranged in the extrusion direction. 2 While melt extruding the thermoplastic synthetic resin from an extruder,
This is a molding device that applies back pressure to molten resin to form and solidify it, and a branch adapter is provided continuously to the mouthpiece of the extruder, and the branch adapter can be switched between heating and cooling at will. A solidification extrusion molding device characterized by a plurality of rows of formers each consisting of a temperature control block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2016742A JP2892413B2 (en) | 1989-03-01 | 1990-01-26 | Solidification extrusion molding equipment |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4965189 | 1989-03-01 | ||
| JP1-49651 | 1989-03-01 | ||
| JP2016742A JP2892413B2 (en) | 1989-03-01 | 1990-01-26 | Solidification extrusion molding equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH037322A true JPH037322A (en) | 1991-01-14 |
| JP2892413B2 JP2892413B2 (en) | 1999-05-17 |
Family
ID=26353138
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2016742A Expired - Lifetime JP2892413B2 (en) | 1989-03-01 | 1990-01-26 | Solidification extrusion molding equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2892413B2 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH055431U (en) * | 1991-07-04 | 1993-01-26 | 三菱樹脂株式会社 | Solidification extrusion molding equipment |
| GB2406540A (en) * | 2003-08-29 | 2005-04-06 | Mars Inc | Flow distributor for an extrudate |
| EP1254009A4 (en) * | 2000-01-07 | 2006-08-30 | Mars Inc | Multi-channel cooling die |
| JP2012025043A (en) * | 2010-07-23 | 2012-02-09 | Sekisui Chem Co Ltd | Manufacturing method of extrusion-molded product |
-
1990
- 1990-01-26 JP JP2016742A patent/JP2892413B2/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH055431U (en) * | 1991-07-04 | 1993-01-26 | 三菱樹脂株式会社 | Solidification extrusion molding equipment |
| EP1254009A4 (en) * | 2000-01-07 | 2006-08-30 | Mars Inc | Multi-channel cooling die |
| GB2406540A (en) * | 2003-08-29 | 2005-04-06 | Mars Inc | Flow distributor for an extrudate |
| GB2406540B (en) * | 2003-08-29 | 2007-11-21 | Mars Inc | Arrangement having a flow distribution device and an extruder |
| JP2012025043A (en) * | 2010-07-23 | 2012-02-09 | Sekisui Chem Co Ltd | Manufacturing method of extrusion-molded product |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2892413B2 (en) | 1999-05-17 |
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