JPS641285B2 - - Google Patents
Info
- Publication number
- JPS641285B2 JPS641285B2 JP5649984A JP5649984A JPS641285B2 JP S641285 B2 JPS641285 B2 JP S641285B2 JP 5649984 A JP5649984 A JP 5649984A JP 5649984 A JP5649984 A JP 5649984A JP S641285 B2 JPS641285 B2 JP S641285B2
- Authority
- JP
- Japan
- Prior art keywords
- plastic material
- press
- nozzle
- predetermined
- press molding
- 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
Links
- 239000000463 material Substances 0.000 claims description 56
- 239000004033 plastic Substances 0.000 claims description 35
- 238000000465 moulding Methods 0.000 claims description 15
- 238000000034 method Methods 0.000 claims description 5
- 238000001125 extrusion Methods 0.000 description 5
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 239000000805 composite resin Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
Landscapes
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
Description
【発明の詳細な説明】
本発明は、可塑性材料のプレス成形方法に関す
る。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method of press molding a plastic material.
可塑性材料をノズルから線状に硫出してプレス
成形機の下金型上に所定のパターンに載置してプ
レス成形することが、フローモールデイング方法
として知られている。しかし、従来のフローモー
ルデイング方法では、ノズル部をプロツターのよ
うに移動して可塑性材料を所望通りプレス成形機
に押出供給しているもので、可塑性材料の供給に
時間がかかるという致命的な欠陥があり、また折
曲して供給した可塑性材料同志の突合せの線間圧
縮によるウエルドラインが形成される欠点があつ
た。また、さらに、第１図や第２図のようなプレ
ス成形品に応じた最適の平面状の広狭の幅をもつ
連続した板状に可塑性材料１を供給することは不
可能であつた。 BACKGROUND ART It is known as a flow molding method that a plastic material is sulfated in a line from a nozzle, placed in a predetermined pattern on a lower die of a press molding machine, and press-molded. However, in the conventional flow molding method, the nozzle part moves like a plotter to extrude and feed the plastic material to the press molding machine as desired, which has a fatal flaw that it takes time to feed the plastic material. There was also a drawback that a weld line was formed due to line-to-line compression when the plastic materials that were bent and supplied were butted against each other. Furthermore, it has been impossible to supply the plastic material 1 in a continuous plate shape having the optimum planar wide and narrow widths corresponding to the press-formed products as shown in FIGS. 1 and 2.
本発明は上記のような点に鑑みたもので、成形
品の形状に応じて広狭自在の幅の連続した平板状
に可塑性材料をプレス成形機に供給でき、可塑性
材料の供給時間の短縮化がはかれるとともに可塑
性材料の突合せによるウエルドラインの成形がな
く金型に円滑に流動充填できて、生産性よく良好
な成形品が得られる可塑性材料のプレス成形方法
を提供するにある。 The present invention has been made in view of the above points, and it is possible to supply a plastic material to a press molding machine in the form of a continuous flat plate with a width that can be widened or narrowed according to the shape of the molded product, thereby shortening the supply time of the plastic material. To provide a press molding method for a plastic material that can be measured and smoothly filled into a mold without forming a weld line due to butt of the plastic material, and can yield a good molded product with high productivity.
以下、本発明を実施例にもとずいて説明する。 Hereinafter, the present invention will be explained based on examples.
第３図〜第５図は、本発明の一実施例である。
所定の出力のプレス成形機２の開閉自在の金型３
には、熱可塑性や熱硬化性の樹脂材、ゴム材、フ
アイバー等を混合した複合樹脂材、複合ゴム材等
の可塑性材料を所定の平板形状に流出供給自在に
可塑性材料供給装置４を配設している。可塑性材
料供給装置４は、第３図のようにホツパー５を備
えてスクリユウ（図示せず）のまわりをバンドヒ
ータのような加熱溶融器（図示せず）を設けた押
出装置６に可塑性材料を板状に流出供給する材料
流出装置７等を配設して形成している。材料流出
装置７は、金型３の幅と同一あるいは少し狭い位
の所定の広幅の断面矩形状のシリンダ状のもの
で、中部にシヤツトオフバルブ８を配設して屈曲
伸縮自在の接続管９を介して押出装置６と接続し
ており、材料流出装置７に押し込まれた可塑性材
料をピストン押圧部１０によつて前方へ押し出す
ようにしている。この広幅の断面矩形状の材材流
出装置７の前部には、第４図、第５図のように中
央部にノズル孔１１を開孔した細幅の円板状のノ
ズル体１２を多数連接して形成した円筒状のノズ
ル部１３を嵌装するとともに、この個々の円板状
のノズル体１２の上部に歯形状の被駆動部１４を
それぞれ設け、ピニオン１５を介してミニチユア
電動シリンダのような開閉駆動装置１６でそれぞ
れのノズル体１２をラツクピニオン機構等を介し
て揺動開閉自在とし、前端部の流出口１７から所
望幅の可塑性材料を流出自在としているものであ
る。また、材料流出装置７の下部には、摺動レー
ル１８を設けて電動サーボモータ等の往復駆動装
置１９で材料流出装置７をプレス成形機２に対し
て所定距離往復移動自在としており、プレス成形
機２の金型３の開いた下金型２０に適宜に可塑性
材料を平板状に流出供給自在としている。 3 to 5 show an embodiment of the present invention.
A mold 3 that can be opened and closed of a press molding machine 2 with a predetermined output
A plastic material supply device 4 is installed to freely flow out and supply plastic materials such as composite resin materials and composite rubber materials mixed with thermoplastic or thermosetting resin materials, rubber materials, fibers, etc. into a predetermined flat plate shape. are doing. As shown in FIG. 3, the plastic material supply device 4 supplies the plastic material to an extrusion device 6 equipped with a hopper 5 and a heating melter (not shown) such as a band heater around a screw (not shown). It is formed by disposing a material outflow device 7 etc. that flows out and supplies the material in a plate shape. The material outflow device 7 is a cylindrical cylinder with a predetermined wide rectangular cross section that is the same as or slightly narrower than the width of the mold 3, with a shutoff valve 8 disposed in the middle and a connecting pipe 9 that is flexible and expandable. The plastic material pushed into the material outflow device 7 is forced forward by the piston pressing portion 10. At the front of this wide rectangular cross-sectional material discharge device 7, as shown in FIGS. 4 and 5, there are many narrow disk-shaped nozzle bodies 12 with nozzle holes 11 opened in the center. The connected cylindrical nozzle parts 13 are fitted, and a tooth-shaped driven part 14 is provided on the upper part of each disc-shaped nozzle body 12. With such an opening/closing drive device 16, each nozzle body 12 can be swinged open and closed via a rack and pinion mechanism, etc., and a desired width of plastic material can freely flow out from an outlet 17 at the front end. Further, a sliding rail 18 is provided at the bottom of the material outflow device 7, and the material outflow device 7 can be freely moved back and forth a predetermined distance with respect to the press forming machine 2 by a reciprocating drive device 19 such as an electric servo motor. The plastic material can be appropriately fed into the open lower mold 20 of the mold 3 of the machine 2 in the form of a flat plate.
しかして、可塑性材料をプレス成形機２に供給
するにあつては、ホツパー５に所定の充填材等を
混合して装填した可塑性材料を押出装置６で押し
出して材料流出装置７に充填する。そして、往復
駆動装置１９を駆動して材料流出装置７をプレス
成形機２の開いた金型３の下金型２０の所定位置
へ移動し、所定のパターンに応じて所定のノズル
体１２を開閉駆動装置１６でそれぞれ旋回して所
定幅にノズル孔１１を開き、材料流出装置７のビ
ストン押圧部１０を作動しながら往復駆動装置１
９を所定速度で駆動し、所定幅としたノズル部１
３から可塑性材料を下金型２０上に流出塔載して
いくものである。プログラム制御等により、適宜
に上記装置を作動していけば、第１図、第２図の
ような広狭の均一幅でないパターンの材料供給を
容易に得ることができるものである。また、ノズ
ル部の開口度、開閉幅、材料流出装置の移動速
度、ピストン押圧部の押出速度の各諸元をコンピ
ユータ処理などして種々にプログラム制御すれ
ば、様々の適宜のパターンの可塑性材料の流出供
給を行なうことができるものである。特に、本実
施例では、ノズル部を一次元的に移動するだけな
ので、プログラム作成が簡単で、装置の制御も容
易であるとともに、可塑性材料の供給を短時間に
行なうことができ、さらに従来のような可塑性材
料の突合せによるウエルドラインの形成も生じな
いものである。 When the plastic material is supplied to the press molding machine 2, the plastic material mixed with a predetermined filler and the like is loaded into the hopper 5, extruded by the extrusion device 6, and filled into the material outflow device 7. Then, the reciprocating drive device 19 is driven to move the material outflow device 7 to a predetermined position of the lower mold 20 of the open mold 3 of the press molding machine 2, and open and close the predetermined nozzle body 12 according to a predetermined pattern. The reciprocating drive device 1 rotates with the drive device 16 to open the nozzle hole 11 to a predetermined width, and operates the piston pressing portion 10 of the material outflow device 7.
9 is driven at a predetermined speed and has a predetermined width.
3, the plastic material is poured out onto the lower mold 20. By operating the above-mentioned apparatus appropriately under program control or the like, it is possible to easily obtain a pattern of material supply that is not uniform in width as shown in FIGS. 1 and 2. In addition, if the specifications of the opening degree of the nozzle part, the opening/closing width, the moving speed of the material outflow device, and the extrusion speed of the piston pressing part are controlled in various programs by computer processing, various appropriate patterns of plastic materials can be produced. It is capable of supplying outflow. In particular, in this example, since the nozzle part is moved one-dimensionally, it is easy to create a program and control the device, and the plastic material can be supplied in a short time. The formation of weld lines due to such butting of plastic materials does not occur.
また、ノズル部の中央部の開閉によつて、第６
図のように中央部に開口部２１を設けたパターン
を形成することもでき、さらには第７図、第８図
のように固化速度を一様化するためや、リブ部や
ダボ部の突出部を形成するために一部に厚肉部２
２を適宜に形成するようにもできるものである。 Also, by opening and closing the central part of the nozzle part, the sixth
It is also possible to form a pattern with an opening 21 in the center as shown in the figure.Furthermore, it is possible to form a pattern with an opening 21 in the center as shown in Figs. Thick walled part 2 in part to form part
2 can be formed as appropriate.
さらに、上記の実施例では、可塑性材料を計量
押出装置を介することなく流出供給するようにし
たが、材料流出装置に計量押出装置を連結して所
定量の可塑性材料を押出するようにもできるもの
である。 Furthermore, in the above embodiment, the plastic material was flowed out and supplied without going through the metering extrusion device, but it is also possible to connect a metering extrusion device to the material outflow device to extrude a predetermined amount of the plastic material. It is.
また、上記実施例では、ノズル部を多数のノズ
ル体を連接し各ノズル体をそれぞれ開閉自在とし
て所定幅の可塑性材料を供給するようにしたが、
ノズル孔に閉塞材を開閉自在に摺設したり、また
ノズル部の前端部に両開き扉や両開きのシヤツタ
式扉等を設けて所望幅の可塑性材料を供給するよ
うにもできるものである。 In addition, in the above embodiment, the nozzle part is connected to a large number of nozzle bodies, and each nozzle body can be opened and closed to supply a predetermined width of plastic material.
A plugging material can be slid in the nozzle hole so that it can be opened and closed, or a double door or a double shutter type door can be provided at the front end of the nozzle part, so that a desired width of plastic material can be supplied.
以上のように本発明にあつては、成形品の形状
に応じて適宜の広狭自在の幅の連続した平板状に
可塑性材料をプレス成形機に短時間に供給でき
て、金型に円滑に流動充填することができるとと
もに生産性の向上がはかれるものである。また、
可塑性材料を突合せによるウエルドラインの形成
がなく一平面状に流出供給できるので、強度が均
一で良好な成形品を得ることができるものであ
る。 As described above, in the present invention, the plastic material can be supplied to the press molding machine in a short time in a continuous flat plate shape with a width that can be widened or narrowed as appropriate depending on the shape of the molded product, and it can flow smoothly into the mold. Not only can it be filled, but also productivity can be improved. Also,
Since the plastic material can be flowed out and supplied in one plane without forming weld lines due to butting, it is possible to obtain a molded product with uniform strength and good quality.
第１図、第２図はそれぞれ本発明の所望の可塑
性材料流出パターンの一実施例の平面図、第３図
は同上の装置の一部省略した概略平断面図、第４
図、第５図は同上のノズル部の拡大側断面図およ
び平断面図、第６図、第７図は同上の他の流出パ
ターンの平面図、第８図は第７図の中央側断面図
である。
１……可塑性材料、２……プレス成形機、３…
…金型、７……材料流出装置、１３……ノズル
部。
1 and 2 are respectively plan views of an embodiment of the desired plastic material outflow pattern of the present invention, FIG. 3 is a partially omitted schematic plan sectional view of the same device, and FIG.
Figure 5 is an enlarged side sectional view and plan sectional view of the nozzle part same as above, Figures 6 and 7 are plan views of other outflow patterns same as above, and Figure 8 is a central side sectional view of Figure 7. It is. 1...Plastic material, 2...Press molding machine, 3...
...Mold, 7...Material outflow device, 13...Nozzle section.
Claims (1)
出装置のノズル部を所定の広幅状とするとともに
可塑性材料を広狭幅に流出可能にノズル部を幅方
向に開閉調整自在とし、このノズル部から所望の
プレス成形品に応じて可塑性材料をプレス成形機
に突合せによるウエルドラインの形成なく広狭幅
をもつ連続した平板状に金型に押出供給して所望
のプレス成形品を成形することを特徴とする可塑
性材料のプレス成形方法。1 The nozzle part of the material outflow device for supplying plastic material to a press molding machine has a predetermined wide shape, and the nozzle part can be adjusted to open and close in the width direction so that the plastic material can flow out in a wide and narrow width, and the desired amount is Plasticity is characterized by molding a desired press-formed product by extruding and supplying a plastic material to a mold in a continuous flat plate shape with wide and narrow widths without forming a weld line by butting the plastic material into a press-forming machine according to the press-formed product. Press molding method of materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5649984A JPS60199619A (en) | 1984-03-23 | 1984-03-23 | Press molding of plastic material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5649984A JPS60199619A (en) | 1984-03-23 | 1984-03-23 | Press molding of plastic material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60199619A JPS60199619A (en) | 1985-10-09 |
| JPS641285B2 true JPS641285B2 (en) | 1989-01-11 |
Family
ID=13028793
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5649984A Granted JPS60199619A (en) | 1984-03-23 | 1984-03-23 | Press molding of plastic material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60199619A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63163919U (en) * | 1987-02-20 | 1988-10-26 | ||
| JPH0274320A (en) * | 1988-09-12 | 1990-03-14 | Japan Steel Works Ltd:The | Method and apparatus for sheet stamping molding |
-
1984
- 1984-03-23 JP JP5649984A patent/JPS60199619A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60199619A (en) | 1985-10-09 |
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