JPS61237618A - Manufacture of molded article made of synthetic resin and its manufacturing device - Google Patents

Manufacture of molded article made of synthetic resin and its manufacturing device

Info

Publication number
JPS61237618A
JPS61237618A JP60078430A JP7843085A JPS61237618A JP S61237618 A JPS61237618 A JP S61237618A JP 60078430 A JP60078430 A JP 60078430A JP 7843085 A JP7843085 A JP 7843085A JP S61237618 A JPS61237618 A JP S61237618A
Authority
JP
Japan
Prior art keywords
resin
screw
molten resin
filled
cavity
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
JP60078430A
Other languages
Japanese (ja)
Inventor
Hidehiko Murasoto
村外　英比古
Hayao Yonezawa
米澤　速男
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.)
Teiyo Ltd
Original Assignee
Teiyo 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 Teiyo Ltd filed Critical Teiyo Ltd
Priority to JP60078430A priority Critical patent/JPS61237618A/en
Publication of JPS61237618A publication Critical patent/JPS61237618A/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
    • B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/395—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders
    • B29C48/45—Axially movable screws
    • 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

Landscapes

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

Abstract

PURPOSE:To constitute continuous manufacturing of a high-viscosity composite material made of synthetic resin, by a method wherein raw material resin is pushed forward through a rotation of a screw, the screw is made to move backward through pressing along with an action that a cave is filled with molten resin and the molten resin is pushed out by making the screw move forward after the cave has been filled with the molten resin. CONSTITUTION:A screw 4 is made to rotate while raw material resin 1 is being supplied to an extruder 2 through a hopper 9. The raw material resin 1 is filled out the inside of a cave 3 in front of the screw 4 in turn by turning the same into molten resin while the same is being agitated. As pressing with a hydraulic instrument 8 is kept released, the screw 4 is moved backward in turn. The inside of a die 6 is filled with molten resin 5 also and the resin 14 made by the previous process is still in existence within a cooling and sizing sleeve 7. After a predetermined quantity of the molten resin 5 has filled out the inside of the cave 3, the molten resin 5 is pushed out by making the screw 4 move forward by the hydraulic instrument 8. On this occasion, the remaining resin 14 in the cooling and sizing sleeve 7 is extruded by the molten resin.

Description

【発明の詳細な説明】 （産業上の利用分野） この発明は合成樹脂製高粘度複合材の成型品、例えば合
成樹脂製高粘度複合材の肉薄パイプやシート、小径のロ
ンド等の合成樹脂製成型品の製造方法及びその製造装置
に関する。Detailed Description of the Invention (Field of Industrial Application) This invention relates to molded products made of high viscosity composite materials made of synthetic resin, such as thin-walled pipes and sheets of high viscosity composite materials made of synthetic resin, small diameter ronds, etc. The present invention relates to a method for manufacturing a molded product and an apparatus for manufacturing the same.

（従来の技術） 従来より、一般の押出成型機及びそれによる製造方法で
は樹脂圧６００匂／−以下が限度である。(Prior Art) Conventionally, general extrusion molding machines and manufacturing methods using the same have a limit of resin pressure of 600 odor/- or less.

（発明が解決しようとする問題点） 従って、前記従来の技術ではこの発明が解決しようとす
る課題、つまり、合成樹脂製高粘度複合材の成型品の製
造を達成することができない。そのような合成樹脂製成
型品の製造の為には１０００Ｋｆ／ｃｄ　以上の押出樹
脂圧が必要である。(Problems to be Solved by the Invention) Therefore, the problem to be solved by the present invention cannot be achieved with the above-mentioned conventional techniques, that is, the production of molded products of high viscosity synthetic resin composite materials. In order to manufacture such synthetic resin molded products, an extrusion resin pressure of 1000 Kf/cd or more is required.

そこで、この発明は従来の技術では達成し得なかった合
成樹脂製高粘度複合材の連続的製造の達成を目的として
提案するものである。Therefore, the present invention is proposed with the aim of achieving continuous production of high viscosity composite materials made of synthetic resin, which has not been possible with conventional techniques.

（発明の構成） 前記目的を達成する為、この第一の発明は、原料樹脂（
１）を押出機（２）の空洞部（３）内のスクリュー（４
）の回転によって前方に押出し、その押出しにより前記
原料樹脂（１）の溶融樹脂（５）をスクリュー（４）前
方の空洞部（３）内に順次充満させると共に□その充満
の押圧によシスクリユー（４）が後退する第一工程と、
前記スクリュー（４）前方の空洞部（３）内に所定量の
溶融樹脂（５）が充満した後にスクリュー（４）を前進
させてその溶融樹脂（５）を押出し、ダイス（６）、冷
却サイジング（７）を通じて成型し冷却する第二工程と
から構成される合成樹脂製成型品の製造方法である。(Structure of the Invention) In order to achieve the above object, this first invention provides a raw material resin (
1) into the screw (4) in the cavity (3) of the extruder (2).
), the extrusion causes the molten resin (5) of the raw material resin (1) to sequentially fill the cavity (3) in front of the screw (4), and the pressure of the filling causes the system screw ( 4) a first step in which
After the cavity (3) in front of the screw (4) is filled with a predetermined amount of molten resin (5), the screw (4) is advanced to extrude the molten resin (5), and the die (6) is then cooled and sized. (7) A second step of molding and cooling.

又、第二の発明は押出ＷＡ（２）の空洞部（３）内の回
転により原料樹脂（１）を前方の空洞部（３）内に押出
すと共にその前方の空洞部（３）内に順次充満している
前記原料樹脂（１）の溶融樹脂（５）の押圧により後退
し、且つ、前記前方の空洞部（３）内に所定量の溶融樹
脂（５）が充満した後は前進してその溶融樹脂（５）を
押出すスクリュー（４）と、このスクリュー（４）によ
って押出された溶融樹脂（５）を成型するダイス（６）
と、このダイス（６）と直結していることによりダイス
（６）を経た後の溶融樹脂（５）を冷却する冷却サイジ
ング（７）とを備えたことを特徴とする合成樹脂製成型
品の製造装置である。In addition, the second invention extrudes the raw material resin (1) into the front cavity (3) by rotating the interior of the cavity (3) of the extrusion WA (2), and also extrudes the raw resin (1) into the cavity (3) in front of the extrusion WA (2). It retreats by the pressure of the molten resin (5) of the raw material resin (1) that is sequentially filled, and moves forward after the front cavity (3) is filled with a predetermined amount of molten resin (5). A screw (4) for extruding the molten resin (5), and a die (6) for molding the molten resin (5) extruded by the screw (4).
and a cooling sizing (7) that is directly connected to the die (6) to cool the molten resin (5) after passing through the die (6). This is the manufacturing equipment.

（実施例） 第１図は合成樹脂製高粘度複合材の肉薄パイプの製造方
法及びその製造装置の実施例を示す。(Example) FIG. 1 shows an example of a method for manufacturing a thin-walled pipe made of a high-viscosity synthetic resin composite material and an apparatus for manufacturing the same.

図中（８）はスクリュー（４）を前進させる油圧器であ
って油圧ポンプに連結している。又、図中（９）は原料
樹脂（１）を供給するホッパー、（ＩＩは樹脂圧針であ
る。又、図中αυは冷却サイジング（７）内に突き出て
いる突き出しマンドレルである。このマンドレルαυの
冷却サイジング（７）内への突き出しはダイス（６）か
らの溶融樹脂（５）が冷却サイジング（７）によって固
化する長さに予め設定されている。又、図中ａ邊は引取
機、（１３はその引取ロールである。この引取機ａ２は
前記スクリュー（４）が前進した時にそれに対応して間
けつ的に引取る。In the figure, (8) is a hydraulic device that advances the screw (4), and is connected to a hydraulic pump. In the figure, (9) is a hopper for supplying the raw resin (1), (II is a resin pressure needle), and αυ in the figure is a protruding mandrel that protrudes into the cooling sizing (7).This mandrel αυ The protrusion of the resin into the cooling sizing (7) is preset to a length at which the molten resin (5) from the die (6) is solidified by the cooling sizing (7). (13 is its take-off roll. This take-off machine a2 takes off intermittently in response to the advance of the screw (4).

次に、前記製造装置による製造方法について説明する。Next, a manufacturing method using the manufacturing apparatus will be explained.

原料樹脂（１）をホッパー（９）から押出機（２）に供
給しつつスクリュー（４）を回転させる。スクリュー（
４）の回転により原料樹脂（１）は攪拌されつつ溶融樹
脂（５）となってスクリュー（４）前方の空洞部（３）
内に順次充満する。この際、スクリュー（４）は油圧器
（８）による押圧が解除されているので、その充満に伴
なって順々に後退する。同、ダイス（６）内にも溶融樹
脂（５）が充満し、又、冷却サイジング（７）内には先
の工程により冷却固化している或いは冷却同化状態に近
い樹脂（［４）が残存している。The screw (4) is rotated while supplying the raw resin (1) from the hopper (9) to the extruder (2). screw(
The raw resin (1) is stirred by the rotation of 4) and becomes molten resin (5), which flows into the cavity (3) in front of the screw (4).
It fills up sequentially. At this time, since the screws (4) are no longer pressed by the hydraulic device (8), they are sequentially retreated as the screws (4) are filled. Similarly, the die (6) is also filled with molten resin (5), and the resin ([4) that has been cooled and solidified in the previous process or is in a cooled and assimilated state remains in the cooling sizing (7). are doing.

次いで、前記スクリュー（４）前方の空洞部（３）内に
所定量の溶融樹脂（５）が充満した後、油圧器（８）に
よりスクリュー（４）を前進させてその溶融樹脂（５）
を押出す。この際、溶融樹脂（５）は前記冷却サイジン
グ（７）内で冷却固化している或いは冷却同化状態に近
い残存樹脂Ｑ４）を押出すような状態で押出されること
となる。その為にその溶融樹脂（５）の押出圧力は高圧
を必要とする。しかし、前記残存樹脂α荀は冷却固化或
いはそれに近い状態であるので、その押出はスムーズに
行なわれる。Next, after the cavity (3) in front of the screw (4) is filled with a predetermined amount of molten resin (5), the screw (4) is advanced by the hydraulic device (8) to remove the molten resin (5).
extrude. At this time, the molten resin (5) is extruded in such a manner as to extrude the remaining resin Q4) which has been cooled and solidified in the cooling sizing (7) or is close to a cooled and assimilated state. Therefore, the extrusion pressure of the molten resin (5) needs to be high. However, since the remaining resin α is solidified by cooling or in a state close to it, its extrusion can be carried out smoothly.

又、前記残存樹脂α荀は前記スクリュー（４）の前進に
対応して作動する引取機Ｑ２により引取られる。Further, the remaining resin α is taken off by a taking-off machine Q2 which operates in response to the advancement of the screw (4).

そして、以上のような工程の繰り返しにより高粘度の合
成樹脂製成型品が順次連続的に製造される。By repeating the above steps, high-viscosity synthetic resin molded products are successively manufactured.

尚、第２図は高粘度複合材の小径パイプの製造方法及び
その装置を示すものであるが、その説明は第１図と同一
符号をもって表わすことにより省略する。Incidentally, although FIG. 2 shows a method and apparatus for manufacturing a small-diameter pipe made of a high-viscosity composite material, a description thereof will be omitted by using the same reference numerals as in FIG. 1.

（効果） 以上のようにこの発明に係る製造方法及びその装置によ
れば、従来の技術では達成し得ながつた合成樹脂製成型
品、つまり、合成樹脂製高粘度複合材の肉薄パイプやシ
ート、小径のロンド等を連続的に製造することができる
と云う特有な効果を奏する。(Effects) As described above, according to the manufacturing method and its apparatus according to the present invention, it is possible to produce molded products made of synthetic resin that could not be achieved using conventional techniques, that is, thin-walled pipes made of high-viscosity composite materials made of synthetic resin. It has the unique effect of being able to continuously manufacture sheets, small diameter ronds, etc.

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

図面はこの発明に係る製造方法及びその製造装置を説明
する為のものであって、第１図は断面図、第２図は他の
構成例を示す断面図である。 （図の主要な部分を表わす符号の説明）・・・（１）：
原料樹脂、（２）：押出機、（３）：空洞部、（４）ニ
スクリユー、（５）：溶融樹脂、（６）：ダイス、（カ
ニ冷却サイジング。The drawings are for explaining a manufacturing method and a manufacturing apparatus thereof according to the present invention, and FIG. 1 is a sectional view, and FIG. 2 is a sectional view showing another configuration example. (Explanation of symbols representing main parts of the figure)...(1):
Raw material resin, (2): extruder, (3): cavity, (4) varnish screw, (5): molten resin, (6): die, (crab cooling sizing.

Claims (2)

【特許請求の範囲】[Claims] （１）原料樹脂（１）を押出機（２）の空洞部（３）内
のスクリュー（４）の回転によつて前方に押出し、その
押出しにより前記原料樹脂（１）の溶融樹脂（５）をス
クリュー（４）前方の空洞部（３）内に順次充満させる
と共にその充満の押圧によりスクリュー（４）が後退す
る第一工程と、 前記スクリュー（４）前方の空洞部（３）内に所定量の
溶融樹脂（５）が充満した後にスクリュー（４）を前進
させてその溶融樹脂（５）を押出し、ダイス（６）、冷
却サイジング（７）を通じて成型し冷却する第二工程と
から構成される合成樹脂製成型品の製造方法(1) The raw resin (1) is extruded forward by the rotation of the screw (4) in the cavity (3) of the extruder (2), and the extrusion produces a molten resin (5) of the raw resin (1). a first step in which the cavity (3) in front of the screw (4) is sequentially filled and the screw (4) is moved back by the pressure of the filling; After filling with a fixed amount of molten resin (5), the screw (4) is advanced to extrude the molten resin (5), and the second step is to mold and cool it through a die (6) and cooling sizing (7). Method for manufacturing synthetic resin molded products （２）押出機（２）の空洞部（３）内の回転により原料
樹脂（１）を前方の空洞部（３）内に押出すと共にその
前方の空洞部（３）内に順次充満している前記原料樹脂
（１）の溶融樹脂（５）の押圧により後退し、且つ、前
記前方の空洞部（３）内に所定量の溶融樹脂（５）が充
満した後は前進してその溶融樹脂（５）を押出すスクリ
ュー（４）と、このスクリュー（４）によつて押出され
た溶融樹脂（５）を成型するダイス（６）と、このダイ
ス（６）と直結していることによりダイス（６）を経た
後の溶融樹脂（５）を冷却する冷却サイジング（７）と
を備えたことを特徴とする合成樹脂製成型品の製造装置(2) The raw resin (1) is extruded into the front cavity (3) by the rotation in the cavity (3) of the extruder (2), and the front cavity (3) is sequentially filled. The raw material resin (1) moves backward by the pressure of the molten resin (5), and after the front cavity (3) is filled with a predetermined amount of molten resin (5), moves forward and removes the molten resin. (5), a die (6) that molds the molten resin (5) extruded by this screw (4), and a die (6) that is directly connected to this die (6). A manufacturing apparatus for a synthetic resin molded product, characterized by comprising a cooling sizing (7) for cooling the molten resin (5) after passing through (6).
JP60078430A 1985-04-15 1985-04-15 Manufacture of molded article made of synthetic resin and its manufacturing device Pending JPS61237618A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP60078430A JPS61237618A (en) 1985-04-15 1985-04-15 Manufacture of molded article made of synthetic resin and its manufacturing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP60078430A JPS61237618A (en) 1985-04-15 1985-04-15 Manufacture of molded article made of synthetic resin and its manufacturing device

Publications (1)

Publication Number Publication Date
JPS61237618A true JPS61237618A (en) 1986-10-22

Family

ID=13661825

Family Applications (1)

Application Number Title Priority Date Filing Date
JP60078430A Pending JPS61237618A (en) 1985-04-15 1985-04-15 Manufacture of molded article made of synthetic resin and its manufacturing device

Country Status (1)

Country Link
JP (1) JPS61237618A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4938908A (en) * 1984-05-22 1990-07-03 Mitsui Petrochemical Industries, Ltd. Flexible tube of thermoplastic resin having poor melt flowability and production method and apparatus thereof
EP0751828A4 (en) * 1994-03-31 1998-09-30 Modern Techn Corp System and method for molding parts
US5954601A (en) * 1994-03-31 1999-09-21 Modern Technologies Corp. Basketball backboard with integrally molded graphics sheet

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5394546A (en) * 1977-01-31 1978-08-18 Japan Steel Works Ltd Thermoplastic resin tubular material extruder
JPS58208028A (en) * 1982-05-28 1983-12-03 Mitsubishi Heavy Ind Ltd Molding machine

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5394546A (en) * 1977-01-31 1978-08-18 Japan Steel Works Ltd Thermoplastic resin tubular material extruder
JPS58208028A (en) * 1982-05-28 1983-12-03 Mitsubishi Heavy Ind Ltd Molding machine

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4938908A (en) * 1984-05-22 1990-07-03 Mitsui Petrochemical Industries, Ltd. Flexible tube of thermoplastic resin having poor melt flowability and production method and apparatus thereof
EP0751828A4 (en) * 1994-03-31 1998-09-30 Modern Techn Corp System and method for molding parts
US5954601A (en) * 1994-03-31 1999-09-21 Modern Technologies Corp. Basketball backboard with integrally molded graphics sheet

Similar Documents

Publication Publication Date Title
SU510141A3 (en) Method for continuous production of foam plastic products
ES431364A1 (en) Extrusion of hollow articles through a lubricated die
HU206468B (en) Method and apparatus for producing ribbed tubes
KR870001013A (en) Apparatus and method for manufacturing thermoplastic articles and articles produced therefrom.
US2175053A (en) Process and apparatus for working organic plastic material and producing containers therefrom
ES483946A1 (en) A process for extruding ethylene polymers.
DE69717107T2 (en) METHOD AND DEVICE FOR EXTRUDING A PLASTIC OBJECT
JPS5833092B2 (en) Oshidashi Souchi
US3720557A (en) Process for lining conductive tubes with insulating material
JPS61237618A (en) Manufacture of molded article made of synthetic resin and its manufacturing device
ES364228A1 (en) Extrusion machines and dies for producing multilayer tubes or films
US3212134A (en) Extrusion die assembly
US6860316B2 (en) Material melting device of metal injection molding machine
US2177612A (en) Process of producing homogeneous solid articles from polyvinyl alcohol
CN112497638A (en) Hard and soft rubber forming rubber roll equipment
JPH0781160B2 (en) Transparent soap manufacturing method
US3032950A (en) Apparatus and process for producing capsules
JPH0550487A (en) Multistage extrusion of thermoplastic resin
CN203739196U (en) Three-screw machine barrel extruder
JPS62211114A (en) Device for forming resin material into sheet
GB1493453A (en) Method and apparatus for manufacturing a hollow plastics article
CN112497639B (en) Hard and soft rubber forming rubber roll equipment
JPS61143112A (en) Method for solid phase extrusion of synthetic resin
CN1025167C (en) Screw arbor type electromagnetic dynamic plasticizing extruder
CN203844195U (en) Three-screw-rod high-pressure extruding machine