JPH0444893B2 - - Google Patents
Info
- Publication number
- JPH0444893B2 JPH0444893B2 JP1047786A JP1047786A JPH0444893B2 JP H0444893 B2 JPH0444893 B2 JP H0444893B2 JP 1047786 A JP1047786 A JP 1047786A JP 1047786 A JP1047786 A JP 1047786A JP H0444893 B2 JPH0444893 B2 JP H0444893B2
- Authority
- JP
- Japan
- Prior art keywords
- molded
- tightening
- pot
- molding
- trunk
- 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 - Lifetime
Links
Landscapes
- Containers Having Bodies Formed In One Piece (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〕
この発明はポツトのブロー成形方法に関し、特
にその胴本体と締上げ体の成形方法に関するもの
である。DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a method for blow molding a pot, and particularly to a method for molding a barrel body and a tightening body thereof.
一般にポツトは第３図のように、胴本体１の内
部に中びん２を挿入し、中びん２の口部分をパツ
キン３を介して胴本体１の上端開口部４の肩段部
５に当てるとともに、下部外周に底体６を螺合
し、更にその底体６の中央部に螺合した椀状締上
げ体７を中びん２の底面に押し当て、締上げ体７
の底面に設けた凹所８に適宜の工具を掛け、その
工具を操作することによつて締上げ体７を介して
中びん２を締め上げることにより組立てられる。
Generally, as shown in Fig. 3, the pot is constructed by inserting an inner bottle 2 into the body 1, and applying the opening of the inner bottle 2 to the shoulder 5 of the upper opening 4 of the body 1 through the gasket 3. At the same time, the bottom body 6 is screwed to the outer periphery of the lower part, and the bowl-shaped tightening body 7 screwed to the center part of the bottom body 6 is pressed against the bottom surface of the inner bottle 2, and the tightening body 7
It is assembled by hooking a suitable tool into the recess 8 provided on the bottom of the bottle and tightening the inner bottle 2 via the tightening body 7 by operating the tool.
なお、第３図において、９は栓本体、１０は栓
キヤツプである。 In addition, in FIG. 3, 9 is a stopper body, and 10 is a stopper cap.
〔発明が解決しようとする問題点〕
上記の胴本体１は、近年の成形技術の進歩によ
りブロー成形が可能となつている。しかし、底体
６及び締上げ体７は射出成形される。ブロー成形
は成形金型が射出成形の場合に比べて安価である
ので、製品コストを低減することができ、特に多
品種少量生産品の場合に都合がよい。[Problems to be Solved by the Invention] The above-mentioned trunk body 1 can be blow molded due to recent advances in molding technology. However, the sole body 6 and the closure body 7 are injection molded. Blow molding uses a molding die that is less expensive than injection molding, so it is possible to reduce product costs, which is particularly convenient for high-mix, low-volume production.
しかるに、従来は胴本体のみをブロー成形する
にとどまつていたので、未だコスト低減効果は不
十分であつた。 However, in the past, only the cylinder body was blow molded, so the cost reduction effect was still insufficient.
そこで、この発明は、胴本体と締上げ体とを一
体にブロー成形し、成形後に分離するようにした
成形方法を提供するものである。 Therefore, the present invention provides a molding method in which the trunk body and the tightening body are integrally blow molded and separated after molding.
上記の問題点を解決するために、この発明は胴
本体の下端にテーパ筒状連結部の大径側を一体に
連続せしめるとともに、上記連結部の小径側に椀
状締上げ体の開放側を一体に連続せしめてなる成
形中間品をブロー成形により形成し、次に上記連
結部との境界で胴本体と締上げ体とを分離するよ
うにしたものである。
In order to solve the above problems, the present invention has the large diameter side of the tapered cylindrical connecting part integrally continuous with the lower end of the trunk body, and the open side of the bowl-shaped tightening body is connected to the small diameter side of the connecting part. A continuous molded intermediate product is formed by blow molding, and then the trunk body and the tightening body are separated at the boundary with the connecting portion.
第１図は、この発明の方法によつて成形される
成形中間品を示している。この成形中間品は、ブ
ロー成形の常法どおり、２面の金型間に押出機か
ら押出したパリソンを挿入したのち、型締めを行
なうとともに空気を吹込んで中空の成形中間品を
形成する。
FIG. 1 shows a molded intermediate product molded by the method of the present invention. This molded intermediate product is produced by inserting the parison extruded from an extruder between two molds, and then closing the molds and blowing air into the hollow molded intermediate product, as per the usual method of blow molding.
この成形中間品は、胴本体１１、連結部１２及
び締上げ体１３とから成る。胴本体１１は上端に
開口部１４及び肩段部１５を有し、下端にねじ部
１６を有する。連結部１２はテーパ筒状に形成さ
れ、その大径側が上記のねじ部１６に連続してい
る。締上げ体１３は全体として椀状をなし、その
開放側を連結部１２の小径側に連続せしめてい
る。締上げ体１３はその下端にねじ部１７を有
し、そのねじ部１７の底面に工具係合用の凹所１
８が形成される。 This molded intermediate product consists of a trunk body 11, a connecting part 12, and a tightening body 13. The trunk body 11 has an opening 14 and a shoulder section 15 at its upper end, and a threaded section 16 at its lower end. The connecting portion 12 is formed into a tapered cylindrical shape, and its large diameter side is continuous with the threaded portion 16 described above. The tightening body 13 has a bowl shape as a whole, and its open side is continuous with the small diameter side of the connecting portion 12. The tightening body 13 has a threaded portion 17 at its lower end, and a recess 1 for engaging a tool on the bottom surface of the threaded portion 17.
8 is formed.
上記の成形中間品は金型の合せ面において鋳バ
リが生じるのでこれを除去するが、この場合両方
のねじ部１６，１７においては、鋳バリを除去し
易くするため部分的な欠落部１９，２０を形成し
ている。 In the above molded intermediate product, cast burrs occur on the mating surfaces of the molds, so these are removed.In this case, in both threaded parts 16, 17, partial missing parts 19, 20 is formed.
上記のごとき成形中間品が得られると、次に胴
本体１１と連結部１２の境界線ａ、締上げ体１３
と連結部１２の境界線ｂにおいて切除分離する
と、所望の胴本体１１と締上げ体１３が同時に得
られる。連結部１２は廃棄される。 When the above-mentioned intermediate molded product is obtained, next, the boundary line a between the trunk body 11 and the connecting part 12, the tightening body 13
By cutting and separating at the boundary line b between the connecting portion 12 and the connecting portion 12, the desired trunk body 11 and the tightened body 13 are obtained at the same time. The connecting portion 12 is discarded.
以上のように、この発明によると胴本体と締上
げ体とを同時にブロー成形することができるの
で、締上げ体を射出成形していた従来の方法に比
べて、ポツトの製造コストを低減する効果があ
る。
As described above, according to the present invention, the barrel body and the closing body can be blow-molded at the same time, which has the effect of reducing pot manufacturing costs compared to the conventional method in which the closing body is injection molded. There is.
第１図は成形中間品の断面図、第２図は同上の
底面図、第３図はポツトの断面図である。
１１……胴本体、１２……連結部、１３……締
上げ体、１６，１７……ねじ部、１８……凹所。
FIG. 1 is a sectional view of the intermediate molded product, FIG. 2 is a bottom view of the same, and FIG. 3 is a sectional view of the pot. 11... Trunk body, 12... Connecting portion, 13... Tightening body, 16, 17... Threaded portion, 18... Recess.
Claims (1)
一体に連結せしめるとともに、上記連結部の小径
側に椀状締上げ体の開放側を一体に連結せしめて
なる成形中間品をブロー成形により形成し、次に
上記連結部との境界で胴本体と締上げ体とを分離
するポツトのブロー成形方法。1 Blow molding an intermediate product formed by integrally connecting the large diameter side of the tapered cylindrical connecting part to the lower end of the trunk body, and integrally connecting the open side of the bowl-shaped tightening body to the small diameter side of the connecting part. A method of blow molding a pot, in which the body is formed by forming a pot, and then the body and the tightening body are separated at the boundary with the connecting portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61010477A JPS62167026A (en) | 1986-01-20 | 1986-01-20 | Blow molding of pot |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61010477A JPS62167026A (en) | 1986-01-20 | 1986-01-20 | Blow molding of pot |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62167026A JPS62167026A (en) | 1987-07-23 |
| JPH0444893B2 true JPH0444893B2 (en) | 1992-07-23 |
Family
ID=11751231
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61010477A Granted JPS62167026A (en) | 1986-01-20 | 1986-01-20 | Blow molding of pot |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62167026A (en) |
-
1986
- 1986-01-20 JP JP61010477A patent/JPS62167026A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62167026A (en) | 1987-07-23 |
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