JPH034012U - - Google Patents
Info
- Publication number
- JPH034012U JPH034012U JP6407889U JP6407889U JPH034012U JP H034012 U JPH034012 U JP H034012U JP 6407889 U JP6407889 U JP 6407889U JP 6407889 U JP6407889 U JP 6407889U JP H034012 U JPH034012 U JP H034012U
- Authority
- JP
- Japan
- Prior art keywords
- cylinder
- resin material
- pressure
- sucked
- tank
- 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
Links
Landscapes
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Description
図面は本考案の実施例を示し、第１図は反応射
出成形装置の全体構成図、第２図はプランジヤが
前進端にあるときのシリンダ状態を示す断面図、
第３図はプランジヤ後退中（樹脂材料吸入中）の
シリンダ状態を示す断面図、第４図はシリンダ内
の樹脂材料の体積とこの樹脂材料中のニユークリ
エーシヨンガスの体積とについての経時変化を示
すグラフである。
１……成形型、２……タンク、３……シリンダ
、３ａ……上部空間、４……ミキシングヘツド、
５……プランジヤ、１３……調圧手段、１４……
制御手段。
The drawings show an embodiment of the present invention, and FIG. 1 is an overall configuration diagram of a reaction injection molding apparatus, and FIG. 2 is a sectional view showing the cylinder state when the plunger is at the forward end.
Figure 3 is a cross-sectional view showing the state of the cylinder while the plunger is retracting (resin material is being sucked in), and Figure 4 shows changes over time in the volume of resin material in the cylinder and the volume of nucleation gas in this resin material. This is a graph showing. 1... Molding mold, 2... Tank, 3... Cylinder, 3a... Upper space, 4... Mixing head,
5... Plunger, 13... Pressure regulating means, 14...
control means.
Claims (1)
る樹脂材料を貯溜するタンクとの間に、プランジ
ヤの往復動により上記タンクから樹脂材料を吸入
し成形型へ射出するシリンダが設けられた反応射
出成形装置であつて、 上記シリンダ内のガス圧を調整する調圧手段と
、 上記シリンダ内への樹脂材料の吸入時にこのシ
リンダ内のガス圧を増加させるとともに、このシ
リンダ内へ樹脂材料が吸入されていくにつれてそ
の増圧度を減少させるよう上記調圧手段を制御す
る制御手段と、 を備えていることを特徴とする反応射出成形装置
。[Scope of Claim for Utility Model Registration] A cylinder is provided between a mold and a tank for storing a resin material containing nucleation gas, which sucks the resin material from the tank and injects it into the mold by the reciprocating motion of a plunger. The reaction injection molding apparatus is provided with a pressure regulating means for adjusting the gas pressure in the cylinder, and a means for increasing the gas pressure in the cylinder when the resin material is sucked into the cylinder, and A reaction injection molding apparatus comprising: control means for controlling the pressure regulating means to reduce the degree of pressure increase as the resin material is sucked.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6407889U JPH034012U (en) | 1989-06-01 | 1989-06-01 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6407889U JPH034012U (en) | 1989-06-01 | 1989-06-01 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH034012U true JPH034012U (en) | 1991-01-16 |
Family
ID=31594696
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6407889U Pending JPH034012U (en) | 1989-06-01 | 1989-06-01 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH034012U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5031689A (en) * | 1973-07-21 | 1975-03-28 |
-
1989
- 1989-06-01 JP JP6407889U patent/JPH034012U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5031689A (en) * | 1973-07-21 | 1975-03-28 |