JPH0239783Y2 - - Google Patents
Info
- Publication number
- JPH0239783Y2 JPH0239783Y2 JP1984019403U JP1940384U JPH0239783Y2 JP H0239783 Y2 JPH0239783 Y2 JP H0239783Y2 JP 1984019403 U JP1984019403 U JP 1984019403U JP 1940384 U JP1940384 U JP 1940384U JP H0239783 Y2 JPH0239783 Y2 JP H0239783Y2
- Authority
- JP
- Japan
- Prior art keywords
- cylinder
- discharge port
- stock solution
- injection molding
- center axis
- 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
- 239000011550 stock solution Substances 0.000 claims description 24
- 239000007788 liquid Substances 0.000 claims description 10
- 238000010107 reaction injection moulding Methods 0.000 claims description 9
- 238000005086 pumping Methods 0.000 claims description 7
- 239000000945 filler Substances 0.000 description 9
- 238000010586 diagram Methods 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin 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)
- Injection Moulding Of Plastics Or The Like (AREA)
Description
【考案の詳細な説明】
本考案は、原液タンクから液状プラスチツク原
料を吸入して混合ヘツドに圧送する反応射出成形
機の原液圧送シリンダ装置に関する。[Detailed Description of the Invention] The present invention relates to a stock solution pumping cylinder device for a reaction injection molding machine that sucks liquid plastic raw material from a stock solution tank and pumps it to a mixing head.
従来、反応射出成形機においては、第１図に示
すように、原液タンク１，１に貯蔵された複数種
の液状プラスチツク原料（以下原液Ａ，Ｂと称
す）を原液圧送シリンダ装置２，２に吸入して、
一定の比率で混合ヘツド３に圧送し、混合ヘツド
３でこれら原液Ａ，Ｂを高圧で衝突混合させると
ともに、これを金型内に送込んで反応させて合成
樹脂の成形品を製造している。 Conventionally, in reaction injection molding machines, as shown in FIG. Inhale,
The stock solutions A and B are fed under pressure at a fixed ratio to the mixing head 3, where these stock solutions A and B are collided and mixed at high pressure, and then fed into a mold and reacted to produce synthetic resin molded products. .
ところで、上記反応射出成形機にあつては、成
形品の強度を高める目的から、原液Ａ，Ｂの両方
又は一方の中にガラス繊維等の充填材ｆを混入さ
せることがある。ところが、従来の原液圧送シリ
ンダ装置２では、第２図に示すように、この充填
材ｆがシリンダ４の底に沈積して流出しなくなつ
てしまい、装置の作動が不良となつたり、場合に
よつてはこの沈積した充填材ｆによりシリンダ４
のシリンダカバー５が変形せしめられたりするこ
とがあり、このため、定期的にシリンダカバー５
を取外して沈積した充填材ｆを除去しなければな
らなかつた。 Incidentally, in the reaction injection molding machine described above, a filler f such as glass fiber may be mixed into both or one of the stock solutions A and B for the purpose of increasing the strength of the molded product. However, in the conventional raw liquid pressure-feeding cylinder device 2, as shown in FIG. Eventually, this deposited filler f will cause the cylinder 4 to
The cylinder cover 5 may be deformed, and for this reason, the cylinder cover 5 is periodically
had to be removed and the deposited filler f removed.
本考案は、充填材が水平に置かれたシリンダの
底に沈積することがない上、効率よく充填材を圧
送することができる反応射出成形機の原液圧送シ
リンダ装置を提供することを目的とする。 An object of the present invention is to provide a raw liquid pumping cylinder device for a reaction injection molding machine that can efficiently pump the filler while preventing the filler from being deposited on the bottom of a horizontally placed cylinder. .
上記の目的を達成するために、本考案は、原液
タンク内の原液をシリンダ内に吸入口から吸入
し、該シリンダに挿入されたピストンを駆動装置
で移動させて吐出口から混合ヘツドに圧送する反
応射出成形機の原液圧送シリンダ装置において、
上記シリンダをほぼ水平に配設し、該シリンダの
上面に吸入口を設けるとともに、上記吐出口はシ
リンダに取り付けられたシリンダカバーの下部に
その中心軸線をシリンダの中心軸線にほぼ平行に
揃えて穿設し、該吐出口の内側の端部を、下方の
開口縁をシリンダの底面に接したテーパに形成し
た構成とした。 In order to achieve the above object, the present invention sucks the stock solution in the stock solution tank into the cylinder from the suction port, moves the piston inserted in the cylinder with a drive device, and pumps the stock solution from the discharge port to the mixing head. In the raw liquid pressure cylinder device of the reaction injection molding machine,
The above-mentioned cylinder is arranged almost horizontally, and the suction port is provided on the upper surface of the cylinder, and the above-mentioned discharge port is bored in the lower part of the cylinder cover attached to the cylinder with its center axis aligned almost parallel to the center axis of the cylinder. The inner end of the discharge port is tapered so that the lower opening edge is in contact with the bottom surface of the cylinder.
以下、本考案の一実施例を図面を参照して説明
する。 An embodiment of the present invention will be described below with reference to the drawings.
第３図は本考案の原液圧送シリンダ装置２の一
実施例を示すもので、軸線を水平方向に向けて配
設されたシリンダ４の内部に、一側にピストンロ
ツド６を備えたピストン７が液密的に摺動自在に
嵌装されて成り、該ピストン７は、上記ピストン
ロツド６に連結された油圧駆動シリンダ等の駆動
装置８により駆動されてシリンダ４内を往復動せ
しめられるようになつている。また、上記シリン
ダ４の、上記ピストンロツド６と反対側の上面４
ａには原液Ａ，Ｂの吸入口９が形成され、この吸
入口９は吸入管１０によつて原液タンク１に接続
されている。さらに、シリンダ４の上記ピストン
ロツド６と反対側のシリンダカバー５の壁面でシ
リンダ４の底面４ｂの近傍には吐出口１１が設け
られ、この吐出口１１は吐出管１２によつて混合
ヘツド３に接続されている。なお、図示の如く、
吐出管１２が配設された上記吐出口１１の内壁
は、シリンダ４の内方に近づくにしたがつて広が
るようにテーパ１３が付けられており、原液Ａ，
Ｂおよび充填材ｆの吐出が円滑になされるように
なつている。また、第３図から明らかなように、
吐出口１１の中心軸線はシリンダ４の中心軸線に
平行に揃えられるとともに、テーパ１３の下方の
開口縁はシリンダ４の底面４ｂに接している。 Fig. 3 shows an embodiment of the cylinder device 2 for pumping raw liquid according to the present invention, in which a piston 7 with a piston rod 6 on one side is installed inside a cylinder 4 whose axis is directed horizontally. The piston 7 is tightly and slidably fitted, and the piston 7 is driven by a drive device 8 such as a hydraulic drive cylinder connected to the piston rod 6, so that it can reciprocate within the cylinder 4. . Also, an upper surface 4 of the cylinder 4 on the opposite side from the piston rod 6.
A suction port 9 for stock solutions A and B is formed in a, and this suction port 9 is connected to the stock solution tank 1 through a suction pipe 10. Furthermore, a discharge port 11 is provided near the bottom surface 4b of the cylinder 4 on the wall surface of the cylinder cover 5 on the opposite side of the piston rod 6 of the cylinder 4, and this discharge port 11 is connected to the mixing head 3 by a discharge pipe 12. has been done. In addition, as shown in the diagram,
The inner wall of the discharge port 11 in which the discharge pipe 12 is disposed is tapered 13 so as to widen as it approaches the inside of the cylinder 4.
B and the filler f are smoothly discharged. Also, as is clear from Figure 3,
The central axis of the discharge port 11 is aligned parallel to the central axis of the cylinder 4, and the lower opening edge of the taper 13 is in contact with the bottom surface 4b of the cylinder 4.
次に、上記のように構成された本考案の作用に
ついて説明する。 Next, the operation of the present invention configured as described above will be explained.
本考案の原液圧送シリンダ装置２，２によつて
原液タンク１，１の原液Ａ，Ｂを混合ヘツド３に
圧送する場合、まず各吸入管１０に設けられたボ
ールバルブ１４，１４を開状態にした後、各駆動
装置８を作動してピストン７を吸入方向に移動さ
せて原液タンク１，１内の原液Ａ，Ｂをシリンダ
４，４内に吸入する。次いで、上記各ボールバル
ブ１４を閉状態にするとともに、駆動装置８によ
り各ピストン７を吐出方向に移動させると、シリ
ンダ４，４内の原液Ａ，Ｂは吐出口１１から吐出
されて混合ヘツド３まで圧送される。 When the stock solutions A and B in the stock solution tanks 1 and 1 are forced to be fed to the mixing head 3 by the stock solution pressure-feeding cylinder devices 2 and 2 of the present invention, first, the ball valves 14 and 14 provided in each suction pipe 10 are opened. After that, each drive device 8 is operated to move the piston 7 in the suction direction, and the stock solutions A and B in the stock solution tanks 1 and 1 are sucked into the cylinders 4 and 4. Next, when each ball valve 14 is closed and each piston 7 is moved in the discharge direction by the drive device 8, the stock solutions A and B in the cylinders 4 and 4 are discharged from the discharge port 11 and transferred to the mixing head 3. is pumped up to.
ここで、本考案の原液圧送シリンダ装置２にあ
つては、吐出口１１はシリンダ４に取り付けられ
たシリンダカバー５の下部にその中心軸線をシリ
ンダ４の中心軸線に平行に揃えて穿設され、該吐
出口１１の内側の端部は下方の開口縁をシリンダ
４の底面４ｂに接したテーパ１３に形成されてい
るので、原液Ａ，Ｂ中に充填材ｆが含有せしめら
れていても、この充填材ｆがシリンダ４の底に沈
積することはなく、押し流される。したがつて、
従来のように、定期的にシリンダカバー５は取外
してシリンダ４の内部を掃除する必要はない。 Here, in the raw liquid pumping cylinder device 2 of the present invention, the discharge port 11 is bored in the lower part of the cylinder cover 5 attached to the cylinder 4 with its center axis aligned parallel to the center axis of the cylinder 4, Since the inner end of the discharge port 11 is formed into a taper 13 whose lower opening edge is in contact with the bottom surface 4b of the cylinder 4, even if the filler f is contained in the stock solutions A and B, this The filler f does not settle on the bottom of the cylinder 4, but is washed away. Therefore,
There is no need to periodically remove the cylinder cover 5 and clean the inside of the cylinder 4 as in the conventional case.
以上のように、本考案の原液圧送シリンダ装置
は、原液タンク内の原液をシリンダ内に吸入口か
ら吸入し、該シリンダに挿入されたピストンを駆
動装置で移動させて吐出口から混合ヘツドに圧送
する反応射出成形機の原液圧送シリンダ装置にお
いて、上記シリンダはほぼ水平に配設され、該シ
リンダの上面に吸入口が設けられるとともに、上
記吐出口はシリンダに取り付けられたシリンダカ
バーの下部にその中心軸線をシリンダの中心軸線
にほぼ平行に揃えて穿設され、該吐出口の内側の
端部は下方の開口縁をシリンダの底面に接したテ
ーパに形成された構成とされているので、長期間
使用してもシリンダの底に充填材が沈積すること
はない。したがつて、シリンダカバーが変形した
り、装置の作動が不良になつたりすることがな
く、シリンダ内の清掃が不要となる。また、吸入
口はほぼ水平に置かれたシリンダの上面に形成さ
れているので、シリンダ内に入り込んだ空気を抜
き出すことが容易である。その上、吐出口はその
中心軸線をシリンダの中心軸線に平行に揃えてシ
リンダカバーに設けられているので、原液を効率
よく混合ヘツドに圧送することができる長所があ
る。更にまた、シリンダはほぼ水平に置かれてい
るので、鉛直配置のシリンダに比較してピストン
をシリンダから危険なく容易に引き抜いてそれら
を点検し、パツキン等を交換することができる。 As described above, the stock solution pressure feeding cylinder device of the present invention sucks the stock solution in the stock solution tank into the cylinder from the suction port, moves the piston inserted in the cylinder using the drive device, and pressurizes the stock solution from the discharge port to the mixing head. In a raw liquid pumping cylinder device for a reaction injection molding machine, the cylinder is arranged almost horizontally, an inlet is provided on the top surface of the cylinder, and the discharge port is located at the center of the cylinder at the bottom of a cylinder cover attached to the cylinder. The discharge port is drilled with its axis aligned almost parallel to the center axis of the cylinder, and the inner end of the discharge port is tapered so that the lower opening edge is in contact with the bottom surface of the cylinder. No filler material is deposited on the bottom of the cylinder during use. Therefore, the cylinder cover will not be deformed or the device will not malfunction, and the inside of the cylinder will not need to be cleaned. Further, since the suction port is formed on the upper surface of the cylinder placed almost horizontally, it is easy to extract air that has entered the cylinder. Furthermore, since the discharge port is provided in the cylinder cover with its center axis aligned parallel to the center axis of the cylinder, there is an advantage that the stock solution can be efficiently pumped to the mixing head. Furthermore, since the cylinder is placed substantially horizontally, the piston can be easily pulled out of the cylinder, inspected, and replaced with gaskets, etc., without danger, compared to a vertically placed cylinder.
第１図は反応射出成形機の構成を示す略図、第
２図は従来の原液圧送シリンダ装置の一例を示す
断面図、第３図は本考案の一実施例を示す断面図
である。
４……シリンダ、４ｂ……底面、１１……吐出
口。
FIG. 1 is a schematic diagram showing the configuration of a reaction injection molding machine, FIG. 2 is a sectional view showing an example of a conventional raw liquid pumping cylinder device, and FIG. 3 is a sectional view showing an embodiment of the present invention. 4...Cylinder, 4b...Bottom surface, 11...Discharge port.
Claims (1)
９から吸入し、該シリンダ４に挿入されたピスト
ン７を駆動装置８で移動させて吐出口１１から混
合ヘツド３に圧送する反応射出成形機の原液圧送
シリンダ装置において、上記シリンダ４はほぼ水
平に配設され、該シリンダ４の上面４ａに吸入口
９が設けられるとともに、上記吐出口１１はシリ
ンダ４に取り付けられたシリンダカバー５の下部
にその中心軸線をシリンダ４の中心軸線にほぼ平
行に揃えて穿設され、該吐出口１１の内側の端部
は下方の開口縁をシリンダ４の底面４ｂに接した
テーパ１３に形成されたことを特徴とする反応射
出成形機の原液圧送シリンダ装置。 This reaction injection molding machine sucks the stock solution in a stock solution tank 1 into a cylinder 4 through a suction port 9, moves a piston 7 inserted into the cylinder 4 by a drive device 8, and pumps it through a discharge port 11 to a mixing head 3. In the raw liquid pressure feeding cylinder device, the cylinder 4 is arranged almost horizontally, the suction port 9 is provided on the upper surface 4a of the cylinder 4, and the discharge port 11 is provided in the lower part of the cylinder cover 5 attached to the cylinder 4. The discharge port 11 is bored so that its center axis is substantially parallel to the center axis of the cylinder 4, and the inner end of the discharge port 11 is formed into a taper 13 whose lower opening edge is in contact with the bottom surface 4b of the cylinder 4. A cylinder device for pumping raw liquid for a reaction injection molding machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1940384U JPS60132315U (en) | 1984-02-14 | 1984-02-14 | Raw liquid pressure feeding cylinder device for reaction injection molding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1940384U JPS60132315U (en) | 1984-02-14 | 1984-02-14 | Raw liquid pressure feeding cylinder device for reaction injection molding machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60132315U JPS60132315U (en) | 1985-09-04 |
| JPH0239783Y2 true JPH0239783Y2 (en) | 1990-10-24 |
Family
ID=30508950
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1940384U Granted JPS60132315U (en) | 1984-02-14 | 1984-02-14 | Raw liquid pressure feeding cylinder device for reaction injection molding machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60132315U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5597916A (en) * | 1979-01-18 | 1980-07-25 | Yuuroorinea Esu Enu Shii Dei K | Method of mixing at least two kind of liquid and of supplying mixture to mold for molding |
-
1984
- 1984-02-14 JP JP1940384U patent/JPS60132315U/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5597916A (en) * | 1979-01-18 | 1980-07-25 | Yuuroorinea Esu Enu Shii Dei K | Method of mixing at least two kind of liquid and of supplying mixture to mold for molding |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60132315U (en) | 1985-09-04 |
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