JPH07266366A - Molding of highly foamed synthetic resin material - Google Patents

Molding of highly foamed synthetic resin material

Info

Publication number
JPH07266366A
JPH07266366A JP6082699A JP8269994A JPH07266366A JP H07266366 A JPH07266366 A JP H07266366A JP 6082699 A JP6082699 A JP 6082699A JP 8269994 A JP8269994 A JP 8269994A JP H07266366 A JPH07266366 A JP H07266366A
Authority
JP
Japan
Prior art keywords
mold
material
molding
space
state
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
JP6082699A
Other languages
Japanese (ja)
Inventor
Tsuneo Matsui
恒雄 松井
Original Assignee
Kyowa Kogyo Kk
共和工業株式会社
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 Kyowa Kogyo Kk, 共和工業株式会社 filed Critical Kyowa Kogyo Kk
Priority to JP6082699A priority Critical patent/JPH07266366A/en
Publication of JPH07266366A publication Critical patent/JPH07266366A/en
Application status is Granted legal-status Critical

Links

Abstract

PURPOSE: To provide a new molding method in order to provide an epock- making new material due to a synthetic resin material in place of a concrete material or a wood product.
CONSTITUTION: A foam molding material is injected into the space part 5 of a mold held to specified width to fill the space part 5 and a movable mold 4 is moved in such a state that the molding material is plasticized to expand the space part 5 between the movable mold 4 and a main mold 3 and the pressure in the mold is instantaneously made negative to achieve the acceleration and uniformization of foaming.
COPYRIGHT: (C)1995,JPO

Description

【発明の詳細な説明】 DETAILED DESCRIPTION OF THE INVENTION

【0001】 [0001]

【産業上の利用分野】本発明は、高発泡合成樹脂材の成形法に関するものである。 The present invention relates to relates to molding of high foamed synthetic resin material.

【0002】 [0002]

【従来の技術】従来、広くコンクリートによる建築用板材の成形がなされていたが、これは重量が過剰になることから、肉厚を薄くしなければならない要求があり、そのため強度上問題が起こっていたので、コンクリートによる板材の成形には限界があった。 Conventionally, although forming of the building sheet according wide concrete has been made, this is because the weight becomes excessive, there is a demand that must be made thinner, going therefore strength problems are since, in the molding of the sheet according to concrete it is limited.

【0003】そこで、発泡用合成樹脂材によって板材等の成形品を製造することもあったが、従来の成形法によっては発泡率に限界があるため、材料の発泡性を十分に発揮させることができず、所望の形状の製品を製造することが必ずしもできなかった。 [0003] Therefore, it also had been possible to produce a molded article of sheet material such as by foaming a synthetic resin material, since the conventional molding method is limited to the foaming rate, it is possible to sufficiently exhibit the foamable material It can not, could not necessarily be manufactured product having a desired shape.

【0004】 [0004]

【発明が解決しようとする課題】そこで、本発明は、従来のこのような課題を解決するために、新成形法を提供し、コンクリート材や木材の製品に代わる合成樹脂材による画期的な新材料を提供することを目的とするものである。 [0007] Accordingly, the present invention is to solve the conventional such problems, provides a new molding breakthrough with synthetic resin material in place of the product of the concrete material and wood it is an object of the present invention to provide a new material.

【0005】 [0005]

【課題を解決するための手段】本発明は、所定巾を保持した金型の空間部に発泡用成形材料を射出充填し、この成形材料の可塑状態下において移動型を移動して本型との空間部を拡大するとともに型内圧力を瞬間的に負圧化して発泡の促進と均一化を行うか、または移動型を再び元方向の所望位置まで移動して半可塑状態下にある成形材料を圧縮するようにした高発泡合成樹脂材の成形法である。 The present invention SUMMARY OF] is injected and filled the foam forming material into the space of the mold holding the predetermined width, and the type by moving the movable die in the plastic state under the molding material molding material is moved while expanding the space portion whether to instantaneously negative pressure to promote the uniformity of the foam-mold pressure, or to a desired position of the mobile again based direction under semi plastic state it is a molding of a high foamed synthetic resin material which is adapted to compress.

【0006】 [0006]

【実施例】1はスプール、2はこのスプール1に連通するノズルで、これは本型3に構成されている。 EXAMPLES 1 spool 2 in a nozzle communicating with the spool 1, which is constructed in the form 3.

【0007】4は移動型で、この移動型は前記本型3との間に空間部5を形成する。 [0007] 4 is mobile, the mobile forms a space 5 between the present type 3.

【0008】aは射出後の高圧力下の可塑状態にある成形材料、bは高圧力が抜かれた発泡促進中の成形材料、 [0008] a molding material in the plastic state under high pressure after the injection, b molding material in foam boosters which high pressure has been removed,
cは半可塑状態から硬化を開始している成形品を示す。 c is a molded article that initiate curing of the semi-plastic state.

【0009】実施例(A) 第1工程 スプール1及びノズル2を通して、本型3と移動型4との間の空間部5に発泡用成形材料aを射出し充填する。 [0009] Through Example (A) a first step spool 1 and the nozzle 2, is injected to fill the foam forming material a into the space 5 between the present type 3 and the moving die 4.
(図1) (Fig. 1)

【0010】第2工程 前記発泡成形材料aが可塑状態であるときに、移動型4 [0010] When the second step the foam molding material a is plastic state, mobile 4
を下方に移動する。 A move downward. すると、瞬間的な高圧力の解放によって可塑状態にある前記材料が拡張するとともに発泡が促進され、空間部5にある成形材料b全体に発泡状態が均一に及ぶようになる。 Then, together with the material by the release of the momentary high pressure in a plastic state to expand is accelerated foaming, so that the foamed state throughout the molding material b in the space 5 extends evenly. (図2) (Fig. 2)

【0011】第3工程 また、必要なときには、再び移動型4を所望の位置まで上方移動し、半可塑状態にあり硬化が始まっている成形材料cを圧縮して停止する。 [0011] Third step, when necessary, again mobile 4 moves upward to the desired position, and stops compressing the molding material c for curing is in a semi-plastic state is begun. これによって、所望の厚さから成りかつ発泡が均一化した成形品(板材)が製造されるようになる。 This consists desired thickness and foaming homogenized molded article (sheet) is to be produced. (図3) (Fig. 3)

【0012】実施例(B) 第1工程 所定巾を保持した本型3と移動型4との間の空間部5 [0012] space 5 between the embodiment (B) the type 3 holding the first step a predetermined width and mobile 4
に、エアガスのような気体を充填して型内圧力を高圧状態に設定する。 To set the gas type within the pressure by filling the like Airgas to high pressure.

【0013】第2工程 このような状態の空間部5に発泡用成形材料を射出し充填する。 [0013] Injection and filling the foam forming material in the second process space 5 in such a state.

【0014】これによって、金型に接する材料の表面部分は未発泡状態で固化し、また内部分は発泡した可塑状態になる。 [0014] Thus, the surface portion of the material in contact with the mold is solidified in the unfoamed state and inner part is a plastic state was foamed.

【0015】第3工程 このような状態において、瞬間的に前記気体を抜き取って型内圧力を減圧する。 [0015] In a third step this state, the vacuum-mold pressure withdrawn momentarily the gas.

【0016】第4工程 しかる後に、移動型を移動して本型との空間部を拡大する。 [0016] Fourth step Thereafter, enlarging the space between the mold by moving the mobile.

【0017】これによって、表面が硬質化し、内部分が均一に発泡化した成形品を得られるようになる。 [0017] Thus, the surface is hardened, so that inner portion is obtained uniformly foamed and molded articles.

【0018】第5工程 また、必要なときは、再び移動型を所望の位置まで上方移動し、内部分が半可塑状態にあり硬化が始まっている成形材料を圧縮して停止する。 [0018] Fifth step, when necessary, again mobile moves upward to the desired position, and stops compressing the molding material inner part is started hardening is in a semi-plastic state.

【0019】この工程は、設定する合成樹脂密度と設定板厚の関係によるが、再加圧を行うことによって成形サイクルの短縮と寸法の安定化を図るものである。 [0019] This step depends on the setting plate thickness relationship between the synthetic resin density to be set, is intended to stabilize the shortening and dimensions of the molding cycle by performing the re-pressurization.

【0020】 [0020]

【発明の効果】本発明は上記のような工程による成形法であるため、発泡倍率を向上させて発泡用成形材料による成形を内部全体に発泡圧や不活性ガスを均一的に発生させることによって行い、その結果、建築用板材に要求される強度と厚肉と軽量の三要素を充足したものを合成樹脂製板材によって提供することができ、しかも常に安定した状態の板材となるから、建築用材や家具用材としてきわめて実用性の高い材料を提供することができるようになる。 Since the present invention is a molding method by steps as described above, by the foaming pressure or an inert gas forming by foam molding material throughout the interior to improve expansion ratio is generated in uniformly performed, as a result, those satisfy the three elements of the required strength and the thick and lightweight building plate can be provided by synthetic resin plate material, moreover always a plate of stable state, building materials it is possible to provide a highly practical material as or furniture material.

【図面の簡単な説明】 BRIEF DESCRIPTION OF THE DRAWINGS

【図1】作業工程を示す金型要部の正断面図 Front sectional view of the mold main portion showing the Figure 1 work process

【図2】作業工程を示す金型要部の正断面図 Front sectional view of the mold main portion showing the Figure 2 working steps

【図3】作業工程を示す金型要部の正断面図 Front sectional view of the mold main portion showing the Figure 3 working steps

【符号の説明】 DESCRIPTION OF SYMBOLS

3 本型 4 移動型 5 空間部 Three types 4 mobile 5 space

───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl. 6識別記号 庁内整理番号 FI 技術表示箇所 B29L 31:44 ────────────────────────────────────────────────── ─── front page continued (51) Int.Cl. 6 in identification symbol Agency Docket No. FI art display portion B29L 31:44

Claims (6)

    【特許請求の範囲】 [The claims]
  1. 【請求項1】 所定巾を保持した金型の空間部に発泡用成形材料を射出充填し、この成形材料の可塑状態下において移動型を移動して本型との空間部を拡大するとともに型内圧力を瞬間的に負圧化して発泡の促進と均一化を行うようにした高発泡合成樹脂材の成形法。 1. A injected and filled the foam forming material into the space of the mold holding the predetermined width, the mold while expanding the space between the mold by moving the movable die in the plastic state under the molding material molding of high foamed synthetic resin material which is adapted to the inner pressure was momentarily negative pressure carried out to promote the uniformity of foaming.
  2. 【請求項2】 所定巾を保持した金型の空間部に発泡用成形材料を射出充填し、この成形材料の可塑状態下において移動型を移動して本型との空間部を拡大するとともに型内圧力を瞬間的に負圧化して発泡の促進と均一化を行い、さらに移動型を再び元方向の所望位置まで移動して半可塑状態下にある成形材料を圧縮するようにした高発泡合成樹脂材の成形法。 2. A injected and filled the foam forming material into the space of the mold holding the predetermined width, the mold while expanding the space between the mold by moving the movable die in the plastic state under the molding material the inner pressure instantaneously by negative pressure performs promotion and homogenization of the foam, high expansion synthesis so as to further compress the molding material in moving under semi plastic state the mobile to the desired position based on the direction of the again molding a resin material.
  3. 【請求項3】 所定巾を保持した金型の空間部に気体を充填して型内圧を高圧に設定した後、発泡用成形材料を射出充填し、金型に接する材料の表面部分は未発泡状態で固化し内部分は可塑状態にし、この状態から瞬間的に前記気体を抜き取り型内圧を減圧し、しかる後に移動型を移動して本型との空間部を拡大し、表面が硬質で内部が均一に発泡化した成形品を製造するようにした高発泡合成樹脂材の成形法。 3. After setting the mold internal pressure to a high pressure by filling the gas in the space of a mold holding a predetermined width, the foam forming material is injected and filled, the surface portion of the material in contact with the mold unfoamed solidified in part in the state is in a plastic state, internally momentarily the gas from this state depressurized extraction type pressure, to expand the space between the mold by moving the mobile Thereafter, the surface is a hard molding of high foamed synthetic resin material which is adapted to produce a uniformly foamed and molded articles.
  4. 【請求項4】 所定巾を保持した金型の空間部に気体を充填して型内圧を高圧に設定した後、発泡用成形材料を射出充填し、金型に接する材料の表面部分は未発泡状態で固化し内部分は可塑状態にし、この状態から瞬間的に前記気体を抜き取り型内圧を減圧し、しかる後に移動型を移動して本型との空間部を拡大し、さらに移動型を再び元方向の所望位置まで移動して半可塑状態下にある成形材料を圧縮するようにした高発泡合成樹脂材の成形法。 4. After setting the mold internal pressure to a high pressure by filling the gas in the space of a mold holding a predetermined width, the foam forming material is injected and filled, the surface portion of the material in contact with the mold unfoamed solidified in part in the state is in a plastic state, momentarily the gas from this state depressurized extraction type pressure, by moving the mobile Thereafter enlarged space portion between the type, further mobile again molding of high foamed synthetic resin material which is adapted to compress the molding material is moved to a desired position in the original direction under semi plastic state.
  5. 【請求項5】 発泡状態を全体的に均一化して成形して成る建築用合成樹脂板材。 5. The construction synthetic resin sheet formed by molding totally uniform foaming state.
  6. 【請求項6】 発泡状態を全体的に均一化して成形して成る家具用合成樹脂板材。 6. The furniture synthetic resin sheet formed by molding totally uniform foaming state.
JP6082699A 1994-03-30 1994-03-30 Molding of highly foamed synthetic resin material Granted JPH07266366A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6082699A JPH07266366A (en) 1994-03-30 1994-03-30 Molding of highly foamed synthetic resin material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6082699A JPH07266366A (en) 1994-03-30 1994-03-30 Molding of highly foamed synthetic resin material

Publications (1)

Publication Number Publication Date
JPH07266366A true JPH07266366A (en) 1995-10-17

Family

ID=13781661

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6082699A Granted JPH07266366A (en) 1994-03-30 1994-03-30 Molding of highly foamed synthetic resin material

Country Status (1)

Country Link
JP (1) JPH07266366A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008246881A (en) * 2007-03-30 2008-10-16 Sumitomo Chemical Co Ltd Manufacturing method for thermoplastic resin foamed molding
WO2010098077A1 (en) * 2009-02-27 2010-09-02 株式会社プライムポリマー Injection foam molding method and apparatus therefor

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008246881A (en) * 2007-03-30 2008-10-16 Sumitomo Chemical Co Ltd Manufacturing method for thermoplastic resin foamed molding
WO2010098077A1 (en) * 2009-02-27 2010-09-02 株式会社プライムポリマー Injection foam molding method and apparatus therefor
JP2010201640A (en) * 2009-02-27 2010-09-16 Prime Polymer Co Ltd Injection foam molding method and injection foam molding apparatus
CN102325636A (en) * 2009-02-27 2012-01-18 普瑞曼聚合物株式会社 Injection foam molding method and apparatus therefor

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