JPS5916925B2 - Pipe fitting manufacturing equipment - Google Patents
Pipe fitting manufacturing equipmentInfo
- Publication number
- JPS5916925B2 JPS5916925B2 JP338975A JP338975A JPS5916925B2 JP S5916925 B2 JPS5916925 B2 JP S5916925B2 JP 338975 A JP338975 A JP 338975A JP 338975 A JP338975 A JP 338975A JP S5916925 B2 JPS5916925 B2 JP S5916925B2
- Authority
- JP
- Japan
- Prior art keywords
- mold
- movable
- core
- auxiliary
- cylindrical
- 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
Landscapes
- Moulds For Moulding Plastics Or The Like (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
- Shaping Of Tube Ends By Bending Or Straightening (AREA)
Description
【発明の詳細な説明】
この発明は、端部内周面にシールリング接着用溝をもつ
合成樹脂製管継手の製造装置に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an apparatus for manufacturing a synthetic resin pipe joint having a groove for adhering a seal ring on the inner circumferential surface of the end portion.
合成樹脂製管継手は合成樹脂管から加工したり、射出成
形法により成形しているが、射出成形法により合成樹脂
製管継手を製造する方法は同一品種のものを大量に生産
出来るが、端部内周面にシールリング装着用溝をもつ合
成樹脂製管継手の如く、筒状製品の内面全周にわたつて
比較的深いアンダーカット部を有するような成形品を製
造する場合、その製造用型の芯型を成形品から離脱させ
るためには、製造用型は極めて複雑な機構が必要となる
ので高価となり、また操作も煩瑣となり故障が生’ じ
易い欠点があつた。この発明は、叙上の点に鑑みてなさ
れたものであつて、後加工で溝を形成することなく、簡
単な機構でシールリング装着用溝をもつ管継手の製造装
置を提供することを目的とする。Synthetic resin pipe fittings are processed from synthetic resin pipes or molded by injection molding, but the method of manufacturing synthetic resin pipe fittings by injection molding allows for mass production of the same type of product, but When manufacturing a molded product that has a relatively deep undercut over the entire inner circumference of a cylindrical product, such as a synthetic resin pipe joint that has a seal ring mounting groove on the inner circumference, the manufacturing mold In order to separate the core mold from the molded product, the production mold requires an extremely complicated mechanism, which makes it expensive, and the operation is also complicated, making it prone to failure. The present invention has been made in view of the above points, and an object of the present invention is to provide a manufacturing device for a pipe joint having a seal ring mounting groove using a simple mechanism without forming a groove in post-processing. shall be.
フ 本発明の要旨は、外型１、芯型４及び補助型６から
なり、前記外型１及び芯型４は閉合時筒状型窩Ａを形成
するようになされ、前記外型１には筒状型窩Ａに通ずる
湯道７が設けられ、前記芯型４には閉合時筒状型窩Ａの
端部に位置する外周面に５ 開口する流体通路４１が設
けられ、前記外型１は外型本体と型窩Ａの周方向に沿う
一定幅部分を含む可動ブロック５からなり、該可動ブロ
ック５は二分割されてその夫々が前記芯型４の軸と直角
方向に移動可能となされ、また前記補助型６は二分ｏ
割されて芯型４の軸と直角方向であつてかつ前記可動ブ
ロック５の移動方向と直角方向に移動可能に設けられ、
該補助型６は前記可動ブロック５が外方に移動した後の
空間部に移動可能であつて閉合により筒状型窩Ａの外周
に環状空間Ｃを形成す０５るものである管継手の製造装
置に存する。F. The gist of the present invention is that it consists of an outer mold 1, a core mold 4, and an auxiliary mold 6, the outer mold 1 and the core mold 4 are configured to form a cylindrical mold cavity A when closed; A runner 7 communicating with the cylindrical mold cavity A is provided, and the core mold 4 is provided with a fluid passage 41 that opens at the outer peripheral surface located at the end of the cylindrical mold cavity A when closed. consists of a movable block 5 including an outer mold body and a constant width portion along the circumferential direction of the mold cavity A, and the movable block 5 is divided into two parts, each of which is movable in a direction perpendicular to the axis of the core mold 4. , and the auxiliary type 6 is bisected o
The movable block 5 is provided so as to be movable in a direction perpendicular to the axis of the core mold 4 and in a direction perpendicular to the moving direction of the movable block 5;
The auxiliary mold 6 is movable into the space after the movable block 5 moves outward, and forms an annular space C around the outer periphery of the cylindrical mold cavity A when closed. It resides in the device.
以下、この発明装置を図面の実施例を参照しながら説明
する。１は外型であり、固定型２、移動型３並びに可動
ブロック５からなり、これらが閉合したとき芯ｉ０型４
の外周に筒状型窩Ａが形成されるようになつている。Hereinafter, this invention device will be explained with reference to embodiments of the drawings. 1 is an outer mold, which consists of a fixed mold 2, a movable mold 3, and a movable block 5, and when these are closed, the core i0 mold 4
A cylindrical mold cavity A is formed on the outer periphery of the mold.
可動ブロック５は芯型４の軸方向に二分割５１、５２さ
れ、その一方の可動ブロック５１は固定型２の案内溝２
１に摺動自在に設けられ、他の可動ブロック５２は移動
型３の案内溝３１にｊ５摺動自在に設けられている。可
動ブロック５１、５２は図示されていない液圧装置によ
つてそれぞれの案内溝２１、３１に沿つて芯型４の軸と
直角方向に移動して互いに開閉するようになされている
。４は芯型であり、その周面に開口４２する流体通路４
１が穿設され、第１図において上下方向に移動可能とさ
れ、型閉合時にはその開口部４２が前記可動プロツク５
１，５２に対応する位置に来るようになされている。The movable block 5 is divided into two parts 51 and 52 in the axial direction of the core mold 4, and one of the movable blocks 51 is connected to the guide groove 2 of the fixed mold 2.
The other movable block 52 is slidably provided in the guide groove 31 of the movable mold 3. The movable blocks 51 and 52 are moved along the respective guide grooves 21 and 31 in a direction perpendicular to the axis of the core mold 4 to open and close each other by a hydraulic device (not shown). 4 is a core type, and has a fluid passage 4 having an opening 42 on its peripheral surface.
1 is drilled and is movable in the vertical direction in FIG.
1 and 52.
６は補助型であり、前記可動プロツク５１，５２と同一
厚さをもち同様に二分割６１，６２され、その夫々は可
動プロツク５１，５２と移動平面と同一平面において、
可動プロツクの移動方向と直角方向にたとえば液圧装置
で移動させることにより開閉するようになされている。Reference numeral 6 denotes an auxiliary type, which has the same thickness as the movable blocks 51 and 52 and is similarly divided into two halves 61 and 62, each of which is in the same plane as the moving plane of the movable blocks 51 and 52.
The movable block is opened and closed by moving it, for example, by a hydraulic device in a direction perpendicular to the direction of movement of the movable block.
つまり可動プロツク５１，５２が開いた後に、補助型６
１，６２が閉合して筒状型窩Ａの外周に環状空間Ｃを形
成するようになされている。第４図は補助型の他の実施
例を示すもので、図示の如く補助型６Ｖ，６２′の内面
が二段構造となされている他は前記実施例と同一である
。In other words, after the movable blocks 51 and 52 are opened, the auxiliary type 6
1 and 62 are closed to form an annular space C around the outer periphery of the cylindrical mold cavity A. FIG. 4 shows another embodiment of the auxiliary mold, which is the same as the previous embodiment except that the inner surfaces of the auxiliary molds 6V and 62' have a two-stage structure as shown.
尚、７は筒状型窩Ａ内に注入される溶融樹脂が通る湯道
である。Note that 7 is a runner through which the molten resin injected into the cylindrical mold cavity A passes.
次に、この発明装置により管継手を製造する手順を第１
図乃至第３図を参照して説明する。Next, the procedure for manufacturing a pipe joint using the apparatus of the present invention will be explained in the first step.
This will be explained with reference to FIGS. 3 to 3.
先ず、移動型３、芯型４及び可動プロツク５１，５２を
所定位置に移動させ、型を閉合して内部に筒状型窩Ａを
形成する（第１図イ）。この筒状型窩Ａ内に湯道７を通
して図示していない射出成形機から溶融樹脂を注入して
樹脂筒状体Ｂを形成する。この樹脂筒状体Ｂが末だ固化
しないうちに、可動プロツク５１，５２を芯型４の軸と
直角方向外側に後退させ、その空間に補助型６１，６２
を移動させて閉合して樹脂筒状体Ｂの外周に環状空間Ｃ
を形成する（第１図口）。続いて、流体通路４１を通し
て芯型４の外周の開口部４２から加圧流体を噴出させ、
樹脂筒状体Ｂの筒壁を環状空間Ｃに膨出させ、端部に膨
出部即ち受口部内周面に周方向に沿つた凹溝をもつ管継
手Ｄを形成する（第１図ハ）。First, the movable mold 3, core mold 4, and movable blocks 51, 52 are moved to predetermined positions, and the molds are closed to form a cylindrical mold cavity A inside (FIG. 1A). Molten resin is injected into this cylindrical mold cavity A through a runner 7 from an injection molding machine (not shown) to form a resin cylindrical body B. Before this resin cylindrical body B has yet to solidify, the movable blocks 51 and 52 are retreated outward in the direction perpendicular to the axis of the core mold 4, and the auxiliary molds 61 and 62 are placed in that space.
is moved and closed to create an annular space C around the outer periphery of the resin cylindrical body B.
(Fig. 1 opening). Subsequently, pressurized fluid is ejected from the opening 42 on the outer periphery of the core mold 4 through the fluid passage 41,
The cylindrical wall of the resin cylindrical body B is bulged into the annular space C, and a pipe joint D having a bulged portion, that is, a concave groove along the circumferential direction on the inner circumferential surface of the socket portion, is formed at the end (see Fig. 1). ).
管継手Ｄが冷却固化させたのち、補助型６１，６２を開
口して後退させ、芯型４を抜き、移動型３を後退させて
型を開き管継手Ｄを型外に取り出す（第１図ニ）。After the pipe fitting D has cooled and solidified, the auxiliary molds 61 and 62 are opened and moved back, the core mold 4 is removed, the movable mold 3 is moved back and the mold is opened, and the pipe fitting D is taken out of the mold (Fig. 1). d).
管継手Ｄを取出した後は上述の逆に作動させ、第１図イ
の状態にする。After removing the pipe fitting D, operate it in the reverse order as described above to bring it into the state shown in Fig. 1A.
以下この作動を繰返して管継手Ｄを順次製造する。以上
のとおり、この発明装置は、外型１に二分割された可動
プロツク５が芯型４の軸と直角方向に移動可能に設けら
れ、別途二分割された補助型が芯型４の軸と直角方向に
、かつ可動プロツク５の移動方向と直角方向に移動可能
となされているから、型閉合時に形成される筒状型窩Ａ
内に溶融樹脂を注入し、可動プロツク５を後退させて開
いた空間に補助金型６を移動して閉合して筒状型窩Ａの
外周に形成される環状空間Ｃに芯型４から加圧流体を送
り樹脂筒状体Ｂの筒壁を膨出することにより、内周壁に
周方向に沿つた凹溝部即ちシールリング装着用溝を簡単
に形成できる。Thereafter, this operation is repeated to sequentially manufacture pipe fittings D. As described above, in the device of the present invention, the movable block 5 which is divided into two parts on the outer mold 1 is provided so as to be movable in a direction perpendicular to the axis of the core mold 4, and the auxiliary mold which is separately divided into two parts is arranged in a direction perpendicular to the axis of the core mold 4. Since it is movable in the direction perpendicular to the moving direction of the movable block 5, the cylindrical mold cavity A formed when the mold is closed
Molten resin is injected into the inner space, the movable block 5 is moved backward, the auxiliary mold 6 is moved to the opened space, and the auxiliary mold 6 is closed. By sending a pressurized fluid to bulge the cylindrical wall of the resin cylindrical body B, a concave groove portion, that is, a groove for attaching a seal ring along the circumferential direction can be easily formed in the inner circumferential wall.
したがつて、この凹溝部を形成するための所謂のアンダ
ーカツト部成形用型がないので、このようなアンダーカ
ツト部成形用型を離脱させるための複雑な機構が不要と
なり、管継手製造装置を安価に提供でき、かつ管継手の
製造が容易になる。Therefore, since there is no so-called undercut molding die for forming this recessed groove, a complicated mechanism for removing such an undercut molding die is not required, and the pipe joint manufacturing equipment can be improved. It can be provided at low cost and the pipe joint can be manufactured easily.
第１図イ〜二はこの発明装置の一実施例をその作動順に
示す要部縦断面図、第２図は第１図イのＨ−Ｈ線におけ
る断面図、第３図は第１図口の−線における断面図、第
４図イ、口は、他の実施例をその作動順に示す要部縦断
面図である。
１・・・・・・外型、２・・・・・・固定型、３・・・
・・・移動型、４・・・・・・芯型、５・・・・・・可
動プロツク、６・・・・・・補助型。Figures 1A to 2 are longitudinal cross-sectional views of essential parts of an embodiment of the device of the present invention showing the order of its operation, Figure 2 is a cross-sectional view taken along line H-H in Figure 1A, and Figure 3 is the opening of Figure 1. A sectional view taken along the - line in FIG. 1...outer type, 2...fixed type, 3...
...Movable type, 4... Core type, 5... Movable block, 6... Auxiliary type.
Claims (1)
は閉合時筒状型窩を形成するようになされ、前記外型に
は筒状型窩に通ずる湯道が設けられ、前記芯型には閉合
時筒状型窩の端部に位置する外周面に開口する流体通路
が設けられ、前記外型は外型本体と型窩の周方向に沿う
一定幅部分を含む可動ブロックとからなり、該可動ブロ
ックは二分割されてその夫々が前記芯型の軸と直角方向
に移動可能となされ、また前記補助型は二分割されて芯
型の軸と直角方向であつてかつ前記可動ブロックの移動
方向と直角方向に移動可能に設けられ、該補助型は前記
可動ブロックが外方に移動した後の空間部に移動可能で
あつて閉合により筒状型窩の外周に環状空間を形成する
ものである、管継手の製造装置。1 Consisting of an outer mold, a core mold, and an auxiliary mold, the outer mold and the core mold form a cylindrical mold cavity when closed, the outer mold is provided with a runner that leads to the cylindrical mold cavity, and the The core mold is provided with a fluid passage that opens on the outer peripheral surface located at the end of the cylindrical mold cavity when closed, and the outer mold has a movable block including an outer mold body and a constant width portion along the circumferential direction of the mold cavity. The movable block is divided into two parts, each of which is movable in a direction perpendicular to the axis of the core mold, and the auxiliary block is divided into two parts, each of which is movable in a direction perpendicular to the axis of the core mold and movable in a direction perpendicular to the axis of the core mold. The auxiliary mold is provided to be movable in a direction perpendicular to the moving direction of the block, and the auxiliary mold is movable into the space after the movable block moves outward, and forms an annular space around the outer periphery of the cylindrical mold cavity when closed. This is a manufacturing equipment for pipe fittings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP338975A JPS5916925B2 (en) | 1974-12-26 | 1974-12-26 | Pipe fitting manufacturing equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP338975A JPS5916925B2 (en) | 1974-12-26 | 1974-12-26 | Pipe fitting manufacturing equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5175758A JPS5175758A (en) | 1976-06-30 |
| JPS5916925B2 true JPS5916925B2 (en) | 1984-04-18 |
Family
ID=11555993
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP338975A Expired JPS5916925B2 (en) | 1974-12-26 | 1974-12-26 | Pipe fitting manufacturing equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5916925B2 (en) |
-
1974
- 1974-12-26 JP JP338975A patent/JPS5916925B2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5175758A (en) | 1976-06-30 |
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