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JPS5996920A - Forming method with extrusion rolls - Google Patents

Forming method with extrusion rolls

Info

Publication number
JPS5996920A
JPS5996920A JP57207857A JP20785782A JPS5996920A JP S5996920 A JPS5996920 A JP S5996920A JP 57207857 A JP57207857 A JP 57207857A JP 20785782 A JP20785782 A JP 20785782A JP S5996920 A JPS5996920 A JP S5996920A
Authority
JP
Japan
Prior art keywords
synthetic resin
roll
stamping
molding
resin layer
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
JP57207857A
Other languages
Japanese (ja)
Inventor
Makoto Honda
誠 本田
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.)
Dai Nippon Printing Co Ltd
Original Assignee
Dai Nippon Printing 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 Dai Nippon Printing Co Ltd filed Critical Dai Nippon Printing Co Ltd
Priority to JP57207857A priority Critical patent/JPS5996920A/en
Publication of JPS5996920A publication Critical patent/JPS5996920A/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
    • B29C69/00—Combinations of shaping techniques not provided for in a single one of main groups B29C39/00 - B29C67/00, e.g. associations of moulding and joining techniques; Apparatus therefore
    • B29C69/02—Combinations of shaping techniques not provided for in a single one of main groups B29C39/00 - B29C67/00, e.g. associations of moulding and joining techniques; Apparatus therefore of moulding techniques only
    • 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
    • B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B29C43/22—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of indefinite length
    • B29C43/222—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of indefinite length characterised by the shape of the surface
    • 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
    • B29C48/0013—Extrusion moulding in several steps, i.e. components merging outside the die
    • B29C48/0014—Extrusion moulding in several steps, i.e. components merging outside the die producing flat articles having components brought in contact outside the extrusion die
    • 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
    • B29C48/16—Articles comprising two or more components, e.g. co-extruded layers
    • B29C48/18—Articles comprising two or more components, e.g. co-extruded layers the components being layers
    • B29C48/21—Articles comprising two or more components, e.g. co-extruded layers the components being layers the layers being joined at their surfaces
    • 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
    • B29C48/0011—Combinations of extrusion moulding with other shaping operations combined with compression moulding
    • 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
    • B29C48/08—Flat, e.g. panels flexible, e.g. films
    • 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
    • B29C48/13—Articles with a cross-section varying in the longitudinal direction, e.g. corrugated pipes
    • 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
    • B29C48/15—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor incorporating preformed parts or layers, e.g. extrusion moulding around inserts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2009/00—Layered products

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)

Abstract

PURPOSE:To manufacture a resin sheet stamped on both sides with high transfer accuracy by a method wherein synthetic resin layers extruded from two extruders are respectively guided so as to be wound round first and second stamping rolls for stamping and both resin layers are laminated one above another. CONSTITUTION:A first synthetic resin layer 7 extruded from a first extruder 6 is introduced between a first stamping roll 3 and a press roll 5 to stamp the resin layer 7 while guiding it in the state where the layer 7 is embraced round the first stamping roll 3. On the other hand, a second synthetic resin layer 9 extruded from a second extruder 8 is pressure-contacted with the back face (which has not been subjected to stamping) and guided so as to embrace a second stamping roll 4 for stamping, whereby a synthetic resin sheet of two- layer structure stamped on both sides thereof is formed. It is preferable for the first synthetic resin layer to have a higher softening point.

Description

【発明の詳細な説明】 本発明は合成樹脂の成形法に関し、より詳細にはフラッ
クスドライブ型スクリーン等の成形に適した押出ロール
成形法に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a synthetic resin molding method, and more particularly to an extrusion roll molding method suitable for molding flux drive type screens and the like.

従来より行なわれている合成樹脂層の両面型（ｊのため
の押出成形法では、一方の面の型付は精度よくできるが
もう一方の型付は精度が悪く、表裏パターンをもつ成形
は困難であった。In the conventional extrusion molding method for double-sided synthetic resin layers (J), it is possible to mold one side with good precision, but the precision of the other side is poor, making it difficult to mold with front and back patterns. Met.

本発明は、このような従来の欠点を改善し、表裏パター
ンともに転写精度の良い成形を行うことのできる押出ロ
ール成形法を提供し７ようとするものである。The present invention aims to improve these conventional drawbacks and provide an extrusion roll molding method that can perform molding with high transfer accuracy for both front and back patterns.

以下本発明の実施例を図面に従って説明する。Embodiments of the present invention will be described below with reference to the drawings.

第１図は、従来より行なわれている透過型スクリーンの
押出ロール成形法を示す側面図で、押出１＜ｉ　＋より
押し出された合成樹脂層２は、第１型付ロール３と第２
型伺ロール４との間に案内され。FIG. 1 is a side view showing a conventional extrusion roll molding method for a transmission screen, in which the synthetic resin layer 2 extruded through extrusion 1<i +
It is guided between the mold roll 4.

その間で表裏両面に型付されるとともに第２型付ロール
４と抑圧ロール５との間においても抑圧さ］１ながら加
工されていた。しかしながら、この方法では、第２パタ
ーンは第２型付ロール４に巻き付いた形で加工されるた
め、精度よく転写できるが、第１パターンは単に第１型
（＝Ｊロール３に短時間接触するだけであるので加工精
度は悪く１表裏パターンをもつ成形を両面とも精度よく
行なうことは困難であった。During this process, both the front and back surfaces were stamped, and the material was also pressed between the second stamping roll 4 and the pressing roll 5. However, in this method, the second pattern is processed while being wrapped around the second molding roll 4, so it can be transferred with high precision, but the first pattern is simply transferred to the first mold (= contacting the J roll 3 for a short time). Because of this, the processing accuracy was poor and it was difficult to perform molding with one front and back pattern with high precision on both sides.

本発明は表裏とも精度よく成形を行うことができるよう
に、押出機を２台使用し、表裏別々の合成樹脂層にそれ
ぞれ良好な型イ」が行われる条件のドに型付して貼合せ
ることにより行うようにしたものである。即ち、第２図
に示すように、第１　Ｊｌｌ＋出機６より押出された第
１合成樹脂層７は、第１型付ロール３と押圧ロール５と
の間に導入されてロールに抱き付いた状態で型伺され、
第２押出機８より押出された第２合成樹脂Ｔ！Ｊ９は、
第１型伺ロール３と第２型伺ロール４との間に第１合成
樹脂層７の裏面と重ね合わされながら導入されて第２型
付目−ル４に抱き付いた状態で送出される。In the present invention, in order to perform molding with high precision on both the front and back sides, two extruders are used, and the front and back synthetic resin layers are molded and laminated under conditions that provide good molding. This is done by doing this. That is, as shown in FIG. 2, the first synthetic resin layer 7 extruded from the first Jll + extruder 6 was introduced between the first molding roll 3 and the pressing roll 5 and hugged the roll. Modeled in condition,
The second synthetic resin T extruded from the second extruder 8! J9 is
The synthetic resin layer 7 is introduced between the first mold rolling roll 3 and the second mold rolling roll 4 while being overlapped with the back surface of the first synthetic resin layer 7, and is sent out while being hugged to the second molding eye roll 4.

したがって、２台の押出機より押出されたそれぞれの合
成樹脂層は、同一条件でそれぞれの型イ」ロールに抱す
ｆ］いた状態となって型伺されながらラミネー１−され
ることになる。それゆえラミネー１へされた合成樹脂層
の表裏面面いづれも同一条件で良りＩな型伺が行なわれ
るとともに、表裏両面にイー１けられた型相互間の位置
関係も正イ「「なものとなる。Therefore, the respective synthetic resin layers extruded by the two extruders are laminated while being held in the rolls of the respective molds under the same conditions. Therefore, both the front and back surfaces of the synthetic resin layer applied to the laminate 1 can be molded under the same conditions, and the positional relationship between the molds formed on both the front and back surfaces is also correct. Become something.

以上説明したように本発明によれば、合成樹脂層は表裏
ともに型ロールに巻きイ］いた形となっているので転写
性がよく、また、二層のラミネートにより作成されてい
るので、第１合成樹脂層に高軟化点のものを使用すれは
第２パターン成形に際しての熱による変形を少くするこ
とができる。As explained above, according to the present invention, the synthetic resin layer has a shape in which both the front and back sides are wound around mold rolls, so transferability is good, and since it is created by laminating two layers, the first By using a synthetic resin layer with a high softening point, deformation due to heat during second pattern molding can be reduced.

さらに、転写性の悪い型には流動性のよい樹脂を用い、
他方には透明性、強度等を付与すると云うような処置を
とることも可能となる。Furthermore, we use resin with good fluidity for molds with poor transferability.
On the other hand, it is also possible to take measures such as imparting transparency, strength, etc.

また、透過型スクリーンの製作にあたっては、一方の樹
脂層に拡散月を入れることにより、画質の向−にが削れ
る。Furthermore, when manufacturing a transmission screen, the image quality can be improved by adding a diffusion layer to one of the resin layers.

なお、本発明は、第３図に示すように型イ１０−ルと押
（＝Ｊロールとの配列どしてもよいものであって、要す
るに表裏型イ」を二層の合成樹脂層を用いてそれぞれ各
型伺ロールに抱き伺いた状態で型付を実施できるように
して、いずれの面でも良好な型（＝Ｊが行なわれるよう
にしたものであるので、この精神に沿って適宜型付ロー
ル、４＋１＋　１；Ｉロールの配置を変更できるもので
ある。As shown in FIG. 3, the present invention allows the arrangement of the die 10-roll and the press (=J-roll) to be rearranged. It is designed to allow molding to be carried out in a state where each mold roll is held close to the roll, so that a mold that is good on all sides (=J) can be made, so in line with this spirit, molding can be carried out as appropriate. Attachment roll, 4+1+1; The arrangement of the I roll can be changed.

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

第１図は従来例の成形法を示す側面図、第２図は本発明
による成形法を示す第１図と同様の側面図、第３図は他
の実施例を示す第２図と同様の図、である。 ３・・・・第１型イ」ロール、４・・・・第２型１４０
−ル、５・・・・押圧ロール、６・・・・第１押出機、
７・・・・第１合成樹脂層、８・・・・第２押出機、９
・・・・第２合成樹脂層。 代理人　弁理士　　今　　　　誠 第１図 第２図 第３図FIG. 1 is a side view showing a conventional molding method, FIG. 2 is a side view similar to FIG. 1 showing a molding method according to the present invention, and FIG. 3 is a side view similar to FIG. 2 showing another embodiment. Figure. 3...1st type 1 roll, 4...2nd type 140
- roll, 5...press roll, 6...first extruder,
7...First synthetic resin layer, 8...Second extruder, 9
...Second synthetic resin layer. Agent Patent Attorney Makoto Kon Figure 1 Figure 2 Figure 3

Claims (2)

【特許請求の範囲】[Claims] （１）２台の押出機よりの合成樹脂層の各表面を、それ
ぞれ、第１の成形用パターンをもつ型付口−ルと第２の
成形用パターンをもつ型付口−ルに巻きイ］りように案
内しながら型付を行うとともに、その型イ」ロール間で
合成樹脂層相互裏面を抑圧接合するようにしたことを特
徴とする押出ロール成形法。(1) Each surface of the synthetic resin layer from the two extruders is wound around a molding spout having a first molding pattern and a molding spout having a second molding pattern. ] An extrusion roll molding method characterized in that molding is performed while being guided in a circular motion, and the back sides of the synthetic resin layers are pressed and bonded between the mold rolls. （２）一方の押出様により吐出される合成樹脂が、他方
の押出機よりの合成樹脂よりも軟１ヒ点か高くされであ
ることを特徴とする特許請求の範囲第１項記載の押出ロ
ール成形法。(2) The extrusion roll according to claim 1, wherein the synthetic resin discharged by one extrusion mode has a softness point higher than that of the synthetic resin from the other extruder. Molding method.
JP57207857A 1982-11-27 1982-11-27 Forming method with extrusion rolls Pending JPS5996920A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP57207857A JPS5996920A (en) 1982-11-27 1982-11-27 Forming method with extrusion rolls

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP57207857A JPS5996920A (en) 1982-11-27 1982-11-27 Forming method with extrusion rolls

Publications (1)

Publication Number Publication Date
JPS5996920A true JPS5996920A (en) 1984-06-04

Family

ID=16546677

Family Applications (1)

Application Number Title Priority Date Filing Date
JP57207857A Pending JPS5996920A (en) 1982-11-27 1982-11-27 Forming method with extrusion rolls

Country Status (1)

Country Link
JP (1) JPS5996920A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006264071A (en) * 2005-03-23 2006-10-05 Fuji Photo Film Co Ltd Manufacturing method of resin sheet
JP2013518738A (en) * 2010-02-02 2013-05-23 リンテック株式会社 Release sheet, release sheet manufacturing method, and synthetic leather
CN111016209A (en) * 2020-01-03 2020-04-17 邢尔路 Novel hollowed-out ground mat processing device and process

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5331769A (en) * 1976-09-02 1978-03-25 Reifenhaeuser Kg Device for producing thick panel of thermoplastic synthetic resin

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5331769A (en) * 1976-09-02 1978-03-25 Reifenhaeuser Kg Device for producing thick panel of thermoplastic synthetic resin

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006264071A (en) * 2005-03-23 2006-10-05 Fuji Photo Film Co Ltd Manufacturing method of resin sheet
JP4552716B2 (en) * 2005-03-23 2010-09-29 富士フイルム株式会社 Manufacturing method of resin sheet
JP2013518738A (en) * 2010-02-02 2013-05-23 リンテック株式会社 Release sheet, release sheet manufacturing method, and synthetic leather
CN111016209A (en) * 2020-01-03 2020-04-17 邢尔路 Novel hollowed-out ground mat processing device and process

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