JPH06347B2 - Press molding method for thermoplastic resin - Google Patents
Press molding method for thermoplastic resinInfo
- Publication number
- JPH06347B2 JPH06347B2 JP59281567A JP28156784A JPH06347B2 JP H06347 B2 JPH06347 B2 JP H06347B2 JP 59281567 A JP59281567 A JP 59281567A JP 28156784 A JP28156784 A JP 28156784A JP H06347 B2 JPH06347 B2 JP H06347B2
- Authority
- JP
- Japan
- Prior art keywords
- thermoplastic resin
- sheet
- supplied
- press
- resin
- 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.)
- Expired - Lifetime
Links
Landscapes
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
Description
【発明の詳細な説明】 本発明は熱可塑性樹脂のプレス成形方法に関するもので
ある。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for press-molding a thermoplastic resin.
更に詳しくは、内部に強化、装飾、制振等の機能を有す
る異種材料層を有する外観良好な成形品をより安価な装
置を用いて、ハイサイクルで得る合理的な熱可塑性樹脂
のプレス成形方法を提供するものである。More specifically, a rational thermoplastic resin press-molding method in which a molded product having a different material layer having functions of strengthening, decoration, vibration damping, etc., having a good appearance is obtained in a high cycle by using a more inexpensive device. Is provided.
すなわち、該熱可塑性樹脂と接触した状態で加圧された
時に可塑化溶融した熱可塑性樹脂が貫通できる程度の開
孔を有する（以下単に「該開孔を有する」と称する）シ
ート状物または予備賦形物を上下金型間に供給し、可塑
化溶融した熱可塑性樹脂を上記該開孔を有するシート状
物または予備賦形物と上または下金型との間に供給し、
供給しながらまたは供給の直後に上金型または／および
下金型を移動させて、プレス成形して上記シート状物ま
たは予備賦形物を介してその両面に熱可塑性樹脂層を有
する外観良好なサンドイッチ成形品をハイサイクルで得
るものである。可塑化溶融した熱可塑性樹脂の供給は、
上、下金型間とその系外で移動可能な供給口あるいは上
または下金型内に設けた樹脂通路からの供給口から行な
われるが、後述の如く成形サイクル、外観等の観点から
後者の方がより好しい。That is, a sheet-like article or a preliminary product having an opening to such an extent that the thermoplastic resin melted by plasticization and melting can be penetrated when pressure is applied while being in contact with the thermoplastic resin (hereinafter simply referred to as "having the opening"). The shaped product is supplied between the upper and lower molds, and the plasticized and melted thermoplastic resin is supplied between the sheet-shaped product having the opening or the preshaped product and the upper or lower mold,
The upper mold and / or the lower mold is moved while being supplied or immediately after being supplied, and press-molded to have a thermoplastic resin layer on both surfaces of the sheet-shaped material or the preshaped material through which good appearance is obtained. A sandwich molded product is obtained by a high cycle. Supply of plasticized and molten thermoplastic resin
It is performed from a supply port that is movable between the upper and lower molds and outside the system or a supply port from a resin passage provided in the upper or lower molds. Is better.
本発明に用いられる該開孔を有するシート状物または予
備賦形物は金属、プラスチックまたは繊維製ネット、あ
るいは目の粗い織布、不織布、ガラス繊維または炭素繊
維等のマット、あるいは孔をあけた金属フオイルやあと
から供給される熱可塑性樹脂とは材質または品種または
色などのいずれかにおいて異なる異種材料の孔をあけた
シートあるいはフィルムでこれらの単独または２種以上
の積層品あるいはこれらシート状物の予備賦形物であ
り、供給に先立って予備加熱を行なってもよい。The sheet-shaped material or preshaped material having the openings used in the present invention is a net made of metal, plastic or fiber, or a woven cloth, non-woven cloth, mat of glass fiber or carbon fiber, or perforated. A sheet or film in which holes different in material, type, color, or the like from the metal foil or the thermoplastic resin to be supplied later are formed, and a single or a laminate of two or more of these or sheet-like products thereof. The preliminarily shaped article of 1. may be preheated prior to supply.
以下本発明の実施例について図面を用いて説明する。Embodiments of the present invention will be described below with reference to the drawings.
第１図〜第３図は本発明の実施例を示す工程図である。1 to 3 are process drawings showing an embodiment of the present invention.
(1)はプレス機の上プラテンで油圧又はモーター駆動で
上、下に運動し、これに成形用上金型(2)が取付けてあ
る。(3)はプレス機下プラテンでこれに成形用下金型(4)
が取付けてある。下金型には溶融樹脂の通る保温されて
いる樹脂通路(5)が設けてあり、この樹脂通路は(6)にお
いて、図示していないが、溶融樹脂を供給する押出装置
の先端に接続されている。また、供給口(7)は図示して
いないが溶融樹脂を供給する時には開き、供給が終了す
ると閉じる弁が設けられている。(1) is an upper platen of the press machine, which moves up and down by hydraulic or motor drive, and an upper mold (2) for molding is attached to this. (3) is the platen under the press machine, and the lower die for molding (4)
Is installed. The lower mold is provided with a resin passage (5) through which the molten resin is kept warm, and this resin passage is connected to the tip of an extruder for feeding the molten resin, although not shown in (6). ing. Although not shown, the supply port (7) is provided with a valve that opens when the molten resin is supplied and closes when the supply is completed.
次に成形操作について説明する。Next, the molding operation will be described.
第１図に示した如く該開孔を有するシート状物または予
備賦形物を供給する。As shown in FIG. 1, a sheet-shaped material or preshaped material having the openings is supplied.
ここにおいて該開孔を有するシート状物または予備賦形
物(20)は金属、プラスチックまたは繊維製のネットある
いは目の粗い織布、不織布、ガラス繊維、炭素繊維等の
マット、あるいは孔をあけた金属フオイルやあとから供
給される熱可塑性樹脂とは材質または品種または色など
のいずれかにおいて異なる異種材料の孔をあけたシート
またはフイルムでこれらの単独または２種以上の積層品
あるいはこれらシート状物の予備賦形物であり、供給に
先立って予備加熱を行なってもよい。必要な開孔の大き
さは可塑化溶融した熱可塑性樹脂の粘度とプレス時の面
圧ならびにシート状物または予備賦形物の種類によって
きまり、例えば住友ノーブレン Ａ×５６８（メルトフ
ローレート６５のエチレン・プロピレンブロックコポリ
マーを樹脂温度２６０℃、金型温度９０℃、プレスの面
圧４０Kg/cm2で成形する場合１mm2以上の開孔を有する
アルミフオイル、線径０．３mn、２０メッシュの金網等
が使用できる。Here, a sheet-shaped article or pre-shaped article having the openings
Object (20) is a net made of metal, plastic or fiber
Woven cloth, non-woven cloth, glass fiber, carbon fiber, etc.
Matte or perforated metal oil or later
What is the thermoplastic resin supplied? Material, product type, color, etc.
Sheets with different materials perforated in either
Or a single film of these films or a laminate of two or more of them
Or it is a pre-shaped product of these sheet-like products,
Preheating may be performed in advance. Required aperture size
Is the viscosity of the thermoplastic resin melted and the surface during pressing.
Depending on the pressure and the type of sheet or preshaped object
Rules, for example Sumitomo Noblen A x 568 (Meltoff
Low rate 65 ethylene / propylene block copolymer
Resin temperature 260 ℃, mold temperature 90 ℃, press surface
Pressure 40Kg / cm2When molding with 1mm2Has the above holes
Aluminum oil, wire diameter 0.3mn, wire mesh of 20 mesh, etc.
Can be used.
これら該開孔を有するシート状物または予備賦形物は図
１の如く下金型上に直接置いてもよいし、あるいは適切
な保持手段を用いて保持しておいてもよい。The sheet-like material or the preshaped material having the openings may be directly placed on the lower mold as shown in FIG. 1, or may be held by using an appropriate holding means.
次に第２図に示した如く供給口(7)から可塑化溶融した
熱可塑性樹脂を下金型と該開孔を有するシート状物また
は予備賦形物の間に供給し、供給しながらまたは供給の
直後に、上プラテンを降下させ、上金型(2)と下金型(4)
で溶融樹脂をプレスする。可塑化溶融した樹脂の供給口
としては第１図に示す上金型に設けた樹脂通路(10)から
の供給口(11)を用いてもよい。シート状物または予備賦
形物が可塑化溶融した熱可塑性樹脂の粘度とプレス時の
面圧ならびにシート状物または予備賦形物の種類によつ
てきまる一定の大きさ以上の開孔を有しておれば第４図
に示した如く該溶融樹脂は該開孔(22)を通して該シート
状物または予備賦形物の反対面にも達し、賦形された成
形品は該シート状物を開孔(22)を介して両面に樹脂層(3
1,31')を有するサンドイッチ成形品(32)となる。本成形
法において樹脂が供給されてから加圧されるまでの時間
をできるだけ短かくすることが外観良好な成形品を得る
にあたってきわめて重要である。熱可塑性樹脂の供給方
法としては上、下金間と系外との間で移動可能な供給口
を用いる方法もあるが、この場合は供給口を上、下金型
間に出し入れする時間が必要であり、さらに供給後加圧
するまでの時間が長くなって成形品の外観が悪くなりや
すい。逆に良好な外観の成形品を得るにはより高い金型
温度が必要となりさらにサイクルが長くなる。Next, as shown in FIG. 2, the thermoplastic resin, which has been plasticized and melted, is supplied from the supply port (7) between the lower mold and the sheet-shaped article or preshaped article having the opening, and while supplying. Immediately after the supply, the upper platen is lowered, and the upper mold (2) and the lower mold (4).
Press the molten resin with. As the supply port of the plasticized and melted resin, the supply port (11) from the resin passage (10) provided in the upper mold shown in FIG. 1 may be used. The sheet or pre-shaped product has openings of a certain size or larger depending on the viscosity of the thermoplastic resin that is plasticized and melted, the surface pressure during pressing, and the type of the sheet or pre-shaped product. If so, as shown in FIG. 4, the molten resin reaches the opposite side of the sheet-shaped article or the preshaped object through the opening (22), and the shaped molded article is the sheet-shaped object. The resin layer (3
A sandwich molded article (32) having 1,31 ′) is obtained. In this molding method, it is extremely important to make the time from the supply of the resin to the pressurization as short as possible in order to obtain a molded product having a good appearance. As a method of supplying the thermoplastic resin, there is also a method of using a supply port that can move between the upper and lower metal molds and the outside of the system, but in this case, it takes time to put the supply port in and out between the upper and lower metal molds. In addition, the time until the pressurization after the supply becomes longer and the appearance of the molded product tends to deteriorate. On the contrary, in order to obtain a molded product having a good appearance, a higher mold temperature is required and the cycle becomes longer.
上記方法によって得られる成形品は最初に供給される該
開孔を有するシート状物または予備賦形物の特性によ
り、強化、装飾、制振等の機能を有し、かつ外観が良好
である。The molded product obtained by the above-mentioned method has functions such as strengthening, decoration, vibration damping and the like, and has a good appearance, depending on the characteristics of the sheet-shaped product or the preshaped product having the openings supplied first.
第１図〜第３図は本発明の実施例を示す工程図である。
第４図は第３図ａ部の拡大図である。 図中の主な符号は次の通りである。 １：上プラテン、 ２：上金型、 ３：下プラテン、 ４：下金型、 ５：樹脂通路、 ７：供給口、 20：シート状物または予備賦形物1 to 3 are process drawings showing an embodiment of the present invention.
FIG. 4 is an enlarged view of part a in FIG. The main symbols in the figure are as follows. 1: Upper platen, 2: Upper mold, 3: Lower platen, 4: Lower mold, 5: Resin passage, 7: Supply port, 20: Sheet-shaped or preshaped object
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 昭56−104015（ＪＰ，Ａ) 特開 昭51−109953（ＪＰ，Ａ) 特開 昭56−80425（ＪＰ，Ａ) 特開 昭56−106817（ＪＰ，Ａ) 特開 昭49−47463（ＪＰ，Ａ) 特開 昭59−101322（ＪＰ，Ａ) 特開 昭58−73199（ＪＰ，Ａ) ─────────────────────────────────────────────────── ─── Continuation of front page (56) Reference JP-A-56-104015 (JP, A) JP-A-51-109953 (JP, A) JP-A-56-80425 (JP, A) JP-A-56- 106817 (JP, A) JP 49-47463 (JP, A) JP 59-101322 (JP, A) JP 58-73199 (JP, A)
Claims (2)
間に供給し、プレス、冷却して成形品を得る熱可塑性樹
脂のプレス成形方法において、可塑化溶融した熱可塑性
樹脂の供給に先立って該熱可塑性樹脂と接触した状態で
加圧された時に該熱可塑性樹脂が貫通できる程度の開孔
を有するシート状物または予備賦形物を供給し、その後
可塑化溶融した熱可塑性樹脂を上記シート状物または予
備賦形物と上または下金型との間に供給しながらまたは
供給の直後に上金型または／および下金型を移動させて
プレス成形して上記シート状物または予備賦形物を介し
てその両面に該熱可塑性樹脂層を有するサンドイッチ成
形品を得ることを特徴とする熱可塑性樹脂のプレス成形
方法。1. A method of press-molding a thermoplastic resin, wherein a thermoplastic resin in a molten state is supplied between upper and lower molds, and pressed and cooled to obtain a molded product. Supply of plasticized and melted thermoplastic resin Prior to the above, a sheet-like material or a preshaped object having an opening to such a degree that the thermoplastic resin can penetrate when pressed under the state of being contacted with the thermoplastic resin is supplied, and then the thermoplastic resin melted by plasticization is supplied. While feeding between the above sheet-shaped article or preshaped object and the upper or lower die, or immediately after the feeding, the upper die or / and the lower die is moved to press-form the sheet-like article or A method for press-molding a thermoplastic resin, characterized in that a sandwich molded article having the thermoplastic resin layer on both surfaces thereof is obtained via a preshaped object.
たは下金型内の樹脂通路を通じて行なわれることを特徴
とする特許請求の範囲第１項記載の方法。2. The method according to claim 1, wherein the plasticizing and melting thermoplastic resin is supplied through a resin passage in the upper or lower mold.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59281567A JPH06347B2 (en) | 1984-12-26 | 1984-12-26 | Press molding method for thermoplastic resin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59281567A JPH06347B2 (en) | 1984-12-26 | 1984-12-26 | Press molding method for thermoplastic resin |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61152417A JPS61152417A (en) | 1986-07-11 |
| JPH06347B2 true JPH06347B2 (en) | 1994-01-05 |
Family
ID=17640979
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59281567A Expired - Lifetime JPH06347B2 (en) | 1984-12-26 | 1984-12-26 | Press molding method for thermoplastic resin |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH06347B2 (en) |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS567859B2 (en) * | 1972-06-08 | 1981-02-20 | ||
| JPS5812136B2 (en) * | 1975-03-24 | 1983-03-07 | フドウサンギヨウ カブシキガイシヤ | Amiili plastic plate |
| JPS5680425A (en) * | 1979-12-07 | 1981-07-01 | Toray Ind Inc | Carbon fiber reinforcing compound material |
| JPS56104015A (en) * | 1980-01-24 | 1981-08-19 | Idemitsu Petrochem Co Ltd | Press forming method |
| JPS56106817A (en) * | 1980-01-31 | 1981-08-25 | Shin Kobe Electric Mach Co Ltd | Press molding method for thermoplastic resin sheet |
| JPS59101322A (en) * | 1982-12-02 | 1984-06-11 | Sumitomo Chem Co Ltd | Method of press molding thermoplastic resin |
-
1984
- 1984-12-26 JP JP59281567A patent/JPH06347B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61152417A (en) | 1986-07-11 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |