JPH0431490B2 - - Google Patents
Info
- Publication number
- JPH0431490B2 JPH0431490B2 JP60296412A JP29641285A JPH0431490B2 JP H0431490 B2 JPH0431490 B2 JP H0431490B2 JP 60296412 A JP60296412 A JP 60296412A JP 29641285 A JP29641285 A JP 29641285A JP H0431490 B2 JPH0431490 B2 JP H0431490B2
- Authority
- JP
- Japan
- Prior art keywords
- mold
- tube
- movable
- fixed mold
- parison
- 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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/42—Component parts, details or accessories; Auxiliary operations
- B29C49/48—Moulds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C69/00—Combinations of shaping techniques not provided for in a single one of main groups B29C39/00 - B29C67/00, e.g. associations of moulding and joining techniques; Apparatus therefore
- B29C69/004—Combinations of shaping techniques not provided for in a single one of main groups B29C39/00 - B29C67/00, e.g. associations of moulding and joining techniques; Apparatus therefore making articles by joining parts moulded in separate cavities, said parts being in said separate cavities during said joining
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/60—Multitubular or multicompartmented articles, e.g. honeycomb
- B29L2031/601—Multi-tubular articles, i.e. composed of a plurality of tubes
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- 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.
〔問題点を解決するための手段〕
本発明の二層管の製造方法は、第１の固定金型
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、
この第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の固定金型と
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。[Means for Solving the Problems] The method for manufacturing a two-layer pipe of the present invention includes a first fixed mold and a movable mold having a cavity facing the first fixed mold and a movable mold that sandwich the parison to form the first pipe body. hollow molded,
The parison is held between a movable mold holding the first tube body and a second fixed mold having a cavity facing the first tube body, and the second tube body is hollow-molded. The body and the second tube are fused together.
本発明は、可動金型を第１の固定金型に対した
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の固定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 mold placed against a first fixed mold, and then a second pipe is formed with a movable mold placed against a second fixed mold. The tubular body is hollow-molded, and the first tubular body and the second tubular 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に第１の固定金型２と第２の固定金型３
とが隣接して取付けられている。この第１の固定
金型２の型面は平坦面となつているとともに、第
２の固定金型３の型面には平型ダクト形状のキヤ
ビテイ４が形成されている。 In FIG. 1, 1 is a mold mounting plate, and a first fixed mold 2 and a second fixed mold 3 are mounted on this mold mounting plate 1.
are installed adjacent to each other. The first fixed mold 2 has a flat mold surface, and the second fixed mold 3 has a flat duct-shaped cavity 4 formed in the mold surface.
５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６によつて金型取付板
１に対して往復動する。また、可動板５にはガイ
ド板７が取付けられ、このガイド板７に蟻溝係合
を介して可動金型８が横方向移動自在に嵌合さ
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 5 denotes a movable plate disposed opposite to the mold mounting plate 1, and the movable plate 5 reciprocates with respect to the mold mounting plate 1 by means of an operating rod 6. Further, a guide plate 7 is attached to the movable plate 5, and a movable mold 8 is fitted to this guide plate 7 through dovetail engagement so as to be movable in the lateral direction. A cavity 9 in the shape of a flat duct is formed.
また、上記第２の固定金型３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４，
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。 In addition, the second fixed mold 3 and the movable mold 8
Air pin actuating cylinders 10 and 11 are provided in the air pin actuating cylinders 10 and 11, and each cavity 4,
The air pins 12 and 13 are moved forward and backward relative to the air pin 9.
そうして、第１図および第２図に示すように、
まず、第１の固定金型２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６により
可動板５を後退させ、互いに対向して型開きした
第１の固定金型２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６により
可動板５を前進させ、ガイド板７を介して可動金
型８を第１の固定金型２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１
３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 fixed mold 2 and the movable mold 8. That is, the movable plate 5 is moved back by the operating rod 6, the parison is introduced from the mandrel 14 between the first fixed mold 2 and the movable mold 8 which are opened facing each other, and the movable plate 5 is moved back by the operating rod 6. 5 is moved forward, the movable mold 8 is joined to the first fixed mold 2 via the guide plate 7, the mold is closed, the parison is clamped, and the air pin 1 is moved forward.
3, air is introduced into the parison, and the flat duct-shaped first tube 21 is hollow-molded in the cavity 9.
ついで、可動金型８を後退させて型開きを行な
い、蟻溝係合を介して可動金型８を第１の管体２
１を保持したまま第２の固定金型３に対向する位
置まで移動させ、マンドレル１４を金型の真上位
置に変位させ、新たなパリソンを第２の固定金型
３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４内に平型ダク
ト状の第２の管体２２を中空成形する。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形成する。 Next, the movable mold 8 is moved backward to open the mold, and the movable mold 8 is connected to the first tube body 2 through dovetail engagement.
1 is held and moved to a position facing the second fixed mold 3, the mandrel 14 is moved to a position directly above the mold, and a new parison is placed between the second fixed mold 3 and the movable mold 8. The air is introduced into the middle of the parison, the mold is closed again, the parison is clamped, and air is introduced into the parison using the air pins 12 to form a flat duct-like shape in the cavity 4, as shown in FIGS. 3 and 4. The second tubular body 22 is hollow-molded. 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. This forms a duct in which the first and second pipe bodies 21 and 22 are integrated as shown in FIG.
本発明によれば、第１の固定金型と可動金型と
で第１の管体を成形し、この第１の管体を保持し
たまま可動金型を第２の固定金型に対向させ、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、第１および第２の固定
金型を移動させる必要がなく、機構も簡素化する
ことができる。
According to the present invention, a first tube is formed using a first fixed mold and a movable mold, and the movable mold is opposed to the second fixed mold while holding the first tube. , since the second tube is molded and fused to the first tube at the same time, it is possible to continuously manufacture ducts etc. that partition two flow paths, and there is no need to join the two tubes through post-processing. There is no need to move the first and second fixed molds, which reduces man-hours, shortens molding time, and achieves high dimensional accuracy. , the mechanism can also be simplified.
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。
２……第１の固定金型、３……第２の固定金
型、４……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. 2...First fixed mold, 3...Second fixed mold, 4...Cavity, 8...Movable mold, 9...
Cavity, 21...first pipe body, 22...second
tube body.
Claims (1)
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、 この第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の固定金型
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 fixed mold and a movable mold having a cavity facing the mold to hollow-form a first tube, and the first tube is held. The parison is sandwiched between the movable mold as it is and a second fixed mold having a cavity opposite thereto, and the second tube is hollow-molded, and at the same time, the first tube and the second tube are A method for manufacturing a double-layer pipe, characterized by fusion bonding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60296412A JPS62151318A (en) | 1985-12-25 | 1985-12-25 | Manufacture of double wall pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60296412A JPS62151318A (en) | 1985-12-25 | 1985-12-25 | Manufacture of double wall pipe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62151318A JPS62151318A (en) | 1987-07-06 |
| JPH0431490B2 true JPH0431490B2 (en) | 1992-05-26 |
Family
ID=17833209
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60296412A Granted JPS62151318A (en) | 1985-12-25 | 1985-12-25 | Manufacture of double wall pipe |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62151318A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02121823A (en) * | 1988-10-31 | 1990-05-09 | Kyoraku Co Ltd | Manufacture of hollow multi-wall panel |
-
1985
- 1985-12-25 JP JP60296412A patent/JPS62151318A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62151318A (en) | 1987-07-06 |
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