JPS59139312U

JPS59139312U - Vacuum blow molding equipment

Info

Publication number: JPS59139312U
Application number: JP3274683U
Authority: JP
Inventors: 木村　英毅
Original assignee: 株式会社日立製作所
Priority date: 1983-03-09
Filing date: 1983-03-09
Publication date: 1984-09-18

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of drawings]

第１図は合成樹脂板を枠に取付け、加熱の概略図、第２
図は加熱軟化樹脂を延伸させる予張の状況を断面で示し
たもの、第３図は、第２図に続いて予張した合成樹脂板
を金型内に押込む状況の断面図で、第４図は、軟化合成
樹脂板が金型に吸引密着した状況の断面図である。第５
図は、加熱軟化したＡＢＳ樹脂板の予張と押込の断面図
、第６図は軟化合成樹脂板が金型に吸引密着した状況の
断面図、第７図は成形品の板厚分布である。１・・・合成樹脂板（実施例ではへＢＳ樹脂板）、２・
・・枠、３・・・止め具、４・・・加熱器、５・・・外
箱、６・・・空気吹込口、７・・・押込機、８・・・金
型、９・・・蓋；１０・・・金型８の排気弁、１１・・
・排気口、１２・・・直空孔、１３・・・空気吹込管、
１４・・・金型、１４ａ・・・ガイドバー、１４ｂ・・
・金型１４の排気弁、１５・・・熱風吹込口、１６・・
・押込機、１７・・・上箱、１８・・・熱風送風機、１
９・・・真空タンク、２０・・・真空孔、２１・・・エ
アシリンダ、２２・・・ＡＢＳ樹脂箱、８ａ・・・金型
８のフランジ部、９ａ・・・蓋９のフランジ部、８ｂ・
・・金型上下動のための油圧シリンダ、９ｂ・・・蓋９
の上下動のた玩の油圧シリンダ、１７ａ・・・外箱１７
の上下動のためのエアシリンダ、１８ａ・・・送風用耐
熱ホース、８Ｃ・・・金型８の冷却管、１４Ｃ・・・金
型１４の冷却管。Figure 1 is a schematic diagram of heating the synthetic resin plate attached to the frame, and Figure 2 is a schematic diagram of heating.
The figure shows a cross-sectional view of the pre-stretched state in which the heat-softened resin is stretched, and Figure 3 is a cross-sectional view of the state in which the pre-stretched synthetic resin plate is pushed into the mold following Figure 2. FIG. 4 is a sectional view of the softened synthetic resin plate in close contact with the mold. Fifth
The figure shows a cross-sectional view of pre-tensioning and pressing of an ABS resin plate that has been softened by heating, Figure 6 is a cross-sectional view of a softened synthetic resin plate that is in close contact with the mold, and Figure 7 is a plate thickness distribution of a molded product. . 1...Synthetic resin plate (BS resin plate in the example), 2...
... Frame, 3... Stopper, 4... Heater, 5... Outer box, 6... Air inlet, 7... Push machine, 8... Mold, 9...・Lid; 10... Exhaust valve of mold 8, 11...
・Exhaust port, 12... Direct air hole, 13... Air blowing pipe,
14... Mold, 14a... Guide bar, 14b...
・Exhaust valve of mold 14, 15...hot air inlet, 16...
・Pushing machine, 17... Upper box, 18... Hot air blower, 1
9... Vacuum tank, 20... Vacuum hole, 21... Air cylinder, 22... ABS resin box, 8a... Flange part of mold 8, 9a... Flange part of lid 9, 8b・
...Hydraulic cylinder for vertical movement of the mold, 9b...Lid 9
Hydraulic cylinder for vertical movement, 17a...outer box 17
18a...Heat-resistant hose for blowing air, 8C...Cooling pipe for mold 8, 14C...Cooling pipe for mold 14.

Claims

[Scope of Claim for Utility Model Registration] 1. A frame that fixes the periphery of a synthetic resin board, a blower that expands the heated and softened synthetic resin board, a pusher that partially stretches the expanded synthetic resin board, and a softened resin. In a vacuum forming device consisting of a mold that shapes a plate into a predetermined shape,
A heat-softened synthetic resin plate is installed in the guide hole of the frame at a position where the guide bar of the mold is inserted, and a hot air blowing port and a push-in The outer periphery of the box with the machine installed inside is tightly installed, and while blowing hot air into the space between the softening synthetic resin board and the box, the air between the softening synthetic resin board and the mold is exhausted, and the softening process is carried out. A vacuum blow molding device characterized by expanding a synthetic resin and partially stretching it with a pusher to bring it into close contact with a mold and shaping it into a predetermined shape. 2. The vacuum blow molding apparatus according to claim 1, which is a utility model, and is characterized in that the softened synthetic resin plate is expanded while sucking boosted carbon dioxide gas as hot air.