JPH0431491B2 - - Google Patents
Info
- Publication number
- JPH0431491B2 JPH0431491B2 JP29641385A JP29641385A JPH0431491B2 JP H0431491 B2 JPH0431491 B2 JP H0431491B2 JP 29641385 A JP29641385 A JP 29641385A JP 29641385 A JP29641385 A JP 29641385A JP H0431491 B2 JPH0431491 B2 JP H0431491B2
- Authority
- JP
- Japan
- Prior art keywords
- mold
- movable
- tube
- parison
- tube body
- 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
- 238000004519 manufacturing process Methods 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 3
- 238000004378 air conditioning Methods 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 238000012805 post-processing Methods 0.000 description 1
Landscapes
- Duct Arrangements (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、空調用ダクトなどとして用いる二層
管の製造方法に関する。DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a method for manufacturing a double-layer pipe used as an air conditioning duct or the like.
従来、空調用ダクトとして２個の流路を形成す
るような場合、通常、第６図に示すように、２個
の管体ａ，ｂを別々に形成して連結具ｃで結合し
ている。
Conventionally, when two flow paths are formed as an air conditioning duct, two pipe bodies a and b are usually formed separately and connected by a connector c, as shown in Fig. 6. .
しかし、このように各管体を別個に形成してこ
れを結合すると、製造に工数がかかり、コスト高
となる。
However, if each tube body is formed separately and then joined together in this way, it takes a lot of man-hours to manufacture and increases the cost.
本発明は、上述のような問題を解決しようとす
るもので、二層管を容易かつ確実に形成できるよ
うにすることを目的とするものである。 The present invention aims to solve the above-mentioned problems, and aims to make it possible to easily and reliably form a two-layer pipe.
本発明の二層管の製造方法は、第１の金型とこ
れに対向するキヤビテイを有する可動金型とでパ
リソンを挾持して第１の管体を中空成形し、上記
第１の金型位置にキヤビテイを有する第２の金型
を交換配置し、上記第１の管体を保持したままの
可動金型とこれに対向するキヤビテイを有する第
２の金型とでパリソンを挾持して第２の管体を中
空成形すると同時に、第１の管体と第２の管体と
を融着させるものである。
The method for manufacturing a two-layer pipe of the present invention includes hollow-molding a first pipe body by sandwiching a parison between a first mold and a movable mold having a cavity facing the first mold, and A second mold having a cavity is placed in place, and the parison is held between the movable mold holding the first tube body and the second mold having a cavity opposite thereto. At the same time as the second tube is hollow-molded, the first tube and the second tube are fused together.
本発明は、可動金型を第１の金型に対した状態
で第１の管体を中空成形し、つづいて、可動金型
を第２の金型に対した状態で第２の管体を中空成
形し、かつ、第１の管体と第２の管体とを融着し
て一体化するものである。
In the present invention, a first tube body is hollow-molded with a movable die placed against a first die, and then a second tube body is formed with a movable die placed against a second die. is hollow-molded, and the first tube body and the second tube body are fused and integrated.
以下、本発明の一実施例を図面を参照して説明
する。
Hereinafter, one embodiment of the present invention will be described with reference to the drawings.
第１図において、１は金型取付板で、この金型
取付板１に蟻溝係合を介してスライド板２が横方
向移動自在に設けられ、このスライド板２に第１
の金型３と第２の金型４とが隣接して取付けられ
ている。この第１の金型３の型面は平坦面となつ
ているとともに、第２の金型４の型面には平型ダ
クト形状のキヤビテイ５が形成されている。 In FIG. 1, reference numeral 1 denotes a mold mounting plate, and a slide plate 2 is provided on this mold mounting plate 1 so as to be movable laterally through a dovetail engagement.
A mold 3 and a second mold 4 are attached adjacent to each other. The first mold 3 has a flat mold surface, and the second mold 4 has a flat duct-shaped cavity 5 formed in the mold surface.
６は上記金型取付板１に対向配置された可動板
で、この可動板５は作動杆７によつて金型取付板
１に対して往復動する。また、可動板６には可動
金型８が取付けられ、この可動金型８の型面には
平型ダクト形状のキヤビテイ９が形成されてい
る。 Reference numeral 6 denotes a movable plate placed opposite the mold mounting plate 1, and the movable plate 5 is reciprocated with respect to the mold mounting plate 1 by means of an operating rod 7. Further, a movable mold 8 is attached to the movable plate 6, and a flat duct-shaped cavity 9 is formed on the mold surface of the movable mold 8.
また、上記第２の金型４および可動金型８にエ
アピン作動筒１０，１１が設けられ、このエアピ
ン作動筒１０，１１により各キヤビテイ５，９に
対してエアピン１２，１３を進退作動するように
なつている。 Further, the second mold 4 and the movable mold 8 are provided with air pin operating cylinders 10 and 11, and the air pin operating cylinders 10 and 11 move the air pins 12 and 13 forward and backward with respect to each cavity 5 and 9. It's getting old.
そうして、第１図および第２図に示すように、
まず、第１の金型３と可動金型８とで第１の管体
２１を成形する。すなわち、作動杆７により可動
板６を後退させ、互いに対向して型開きした第１
の金型３と可動金型８との中間にマンドレル１４
からパリソンを導入し、作動杆７により可動板６
を前進させ、可動金型８を第１の金型３に接合さ
せて型閉じを行ない、パリソンを挾持するととも
に、エアピン１３によりパリソン内に空気を送入
し、キヤビテイ９内に平型ダクト状の第１の管体
２１を中空成形する。 Then, as shown in Figures 1 and 2,
First, the first tube body 21 is molded using the first mold 3 and the movable mold 8. That is, the movable plate 6 is moved backward by the operating rod 7, and the first molds are opened facing each other.
A mandrel 14 is placed between the mold 3 and the movable mold 8.
The parison is introduced from the movable plate 6 by the operating rod 7.
is moved forward, the movable mold 8 is joined to the first mold 3, the mold is closed, the parison is clamped, and air is introduced into the parison by the air pins 13 to form a flat duct-like shape in the cavity 9. The first tube body 21 is blow-molded.
ついで、可動金型８を後退させて型開きを行な
い、蟻溝係合を介してスライド板２を移動させ、
第１の管体２１を保持したままの可動金型８と対
向する位置に第２の金型４を位置させ、新たなパ
リソンを第２の金型４と可動金型８との中間に導
入して再び型閉じを行ない、パリソンを挾持する
とともに、エアピン１２によりパリソン内に空気
を送入し、第３図および第４図のように、キヤビ
テイ５内に平型ダクト状の第２の管体２２を中空
形成する。このとき、第１の管体２１にも空気を
供給して第１の管体２１が変形することがないよ
うにするとともに、第１の管体２１と第２の管体
２２とを融着させ、第５図に示すような、第１お
よび第２の管体２１，２２が一体化したダクトを
成形する。 Next, the movable mold 8 is moved backward to open the mold, and the slide plate 2 is moved through the dovetail engagement.
The second mold 4 is placed in a position facing the movable mold 8 that is still holding the first tube body 21, and a new parison is introduced between the second mold 4 and the movable mold 8. Then, the mold is closed again and the parison is clamped, and air is introduced into the parison by the air pin 12 to form a flat duct-shaped second pipe in the cavity 5 as shown in FIGS. 3 and 4. The body 22 is formed hollow. At this time, air is also supplied to the first tube 21 to prevent the first tube 21 from deforming, and the first tube 21 and the second tube 22 are fused together. Then, a duct in which the first and second pipe bodies 21 and 22 are integrated as shown in FIG. 5 is formed.
本発明によれば、第１の金型と可動金型とで第
１の管体を成形し、この第１の管体を保持したま
ま可動金型に対して第２の金型に対向させ、第２
の管体を成形すると同時に第１の管体に融着させ
るので、２つの流路を仕切つたダクト等を連続し
て製造でき、後加工によつて２つの管体を結合す
る必要がなく、工数を削減して成形時間の短縮化
を計ることができ、寸法的にも精度の高いものと
することができ、また、可動金型と対する第１お
よび第２の金型を位置変換するので、パリソンを
供給するマンドレル位置は固定でき、パリソンの
供給位置ずれなどがなく、安定して形成すること
ができる。
According to the present invention, the first tube is molded using a first mold and a movable mold, and the first tube is held so as to face the second mold with respect to the movable mold. , second
Since the first tube is molded and fused to the first tube at the same time, it is possible to continuously manufacture a duct etc. that partitions two flow paths, and there is no need to join the two tubes in post-processing. It is possible to shorten the molding time by reducing the number of man-hours, it is possible to achieve high dimensional accuracy, and it is also possible to change the position of the first and second molds relative to the movable mold. The mandrel position for supplying the parison can be fixed, so there is no shift in the supply position of the parison, and stable formation can be achieved.
第１図ないし第５図は本発明の一実施例を示す
もので、第１図は第１工程を示す横断面図、第２
図は第１図の−部の断面図、第３図は第２工
程を示す横断面図、第４図は第３図の−部の
断面図、第５図は本発明による二層管の斜視図、
第６図は従来の二層管の斜視図である。
３……第１の金型、４……第２の金型、５……
キヤビテイ、８……可動金型、９……キヤビテ
イ、２１……第１の管体、２２……第２の管体。
1 to 5 show one embodiment of the present invention, in which FIG. 1 is a cross-sectional view showing the first step, and FIG.
The figure is a sectional view of the - part in Fig. 1, Fig. 3 is a cross-sectional view showing the second step, Fig. 4 is a sectional view of the - part in Fig. 3, and Fig. 5 is a cross-sectional view of the - part of the double-layer pipe according to the present invention. Perspective view,
FIG. 6 is a perspective view of a conventional two-layer pipe. 3...first mold, 4...second mold, 5...
Cavity, 8... Movable mold, 9... Cavity, 21... First tube body, 22... Second tube body.
Claims (1)
する可動金型とでパリソンを挾持して第１の管体
を中空成形し、 上記第１の金型位置にキヤビテイを有する第２
の金型を交換配置し、上記第１の管体を保持した
ままの可動金型とこれに対向するキヤビテイを有
する第２の金型とでパリソンを挾持して第２の管
体を中空成形すると同時に、第１の管体と第２の
管体とを融着させることを特徴とする二層管の製
造方法。[Claims] 1. A parison is sandwiched between a first mold and a movable mold having a cavity facing thereto, and a first tube body is hollow-molded, and the cavity is placed in the position of the first mold. having second
The parison is sandwiched between a movable mold holding the first tube body and a second mold having a cavity facing the movable mold, and the second tube body is hollow-molded. A method for manufacturing a two-layer pipe, characterized in that at the same time, the first pipe body and the second pipe body are fused together.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP29641385A JPS62153650A (en) | 1985-12-25 | 1985-12-25 | Manufacture of double-layer tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP29641385A JPS62153650A (en) | 1985-12-25 | 1985-12-25 | Manufacture of double-layer tube |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62153650A JPS62153650A (en) | 1987-07-08 |
| JPH0431491B2 true JPH0431491B2 (en) | 1992-05-26 |
Family
ID=17833221
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP29641385A Granted JPS62153650A (en) | 1985-12-25 | 1985-12-25 | Manufacture of double-layer tube |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62153650A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5346716B2 (en) * | 2009-07-06 | 2013-11-20 | 株式会社アイテック | Manufacturing method of vent pipe |
-
1985
- 1985-12-25 JP JP29641385A patent/JPS62153650A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62153650A (en) | 1987-07-08 |
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