「原创资料」浇注系统设计标准-点浇口的形式和相关配件应用-03
https://p3-sign.toutiaoimg.com/mosaic-legacy/5b440001d60652d0ba06~tplv-tt-large.image?x-expires=1981976085&x-signature=P9kyPY%2FS0mhFMYUz1j%2BihDqaMHw%3D青华模具学院
1). 点浇口
①.点浇口可应用于各种形式的制品.浇口附近的残余应力小,能自行拉断水口,可实现自动化生产,对于较大的制品可多点进浇,但注射压力损失大,多数要采用三板模结构,模具结构较复杂,成型周期较长.
https://p3-sign.toutiaoimg.com/mosaic-legacy/5b4200059152abc7a728~tplv-tt-large.image?x-expires=1981976085&x-signature=h%2Bp%2Fil0%2FkaBtKxnpWj5qNc5Ue7w%3D
∅d1≥b+0.5
b=∅d2
∅d3≥∅d4+0.5
S1=S2=1
∅d=0.8～1.5
https://p3-sign.toutiaoimg.com/mosaic-legacy/5b4300051ba2a085322e~tplv-tt-large.image?x-expires=1981976085&x-signature=bKOFMiH6ZzBCjrE11sjitdSTDtQ%3D
②.单点点浇口在唧咀中心时,流道冷料要做成大圆形,要采用延伸唧咀带拉料钩形式.见下图:
此种方式不适合流动性差的胶料如PC.
https://p3-sign.toutiaoimg.com/mosaic-legacy/5b4300051ba3f0e0cadc~tplv-tt-large.image?x-expires=1981976085&x-signature=J1kaL3fTmerGqb%2FgU1TcImV3P04%3D
③.细水口单点进胶时,为了防止开模后水口转动，不便于机械手夹取。可在水口板上加开一深为5mm的料头来定位。如下图所示。
https://p3-sign.toutiaoimg.com/mosaic-legacy/5b46000190362e172260~tplv-tt-large.image?x-expires=1981976085&x-signature=W8DuCcBMDpFAvcURE4O2I9oiDFY%3D
4.旋转水口司的设计
六角司M为12,H1=H2+10,d为模具流道大小,H根据模具后模高度来确定.
https://p3-sign.toutiaoimg.com/mosaic-legacy/5b48000121caabb7c8b8~tplv-tt-large.image?x-expires=1981976085&x-signature=SO0B46YnXHbLXChKMQ6oDP8dhvY%3D
5. 水口拉针设计
https://p3-sign.toutiaoimg.com/mosaic-legacy/5b48000121c93535e075~tplv-tt-large.image?x-expires=1981976085&x-signature=lvc2dX4S69GiGJ3N0P26Isvci50%3D
https://p3-sign.toutiaoimg.com/mosaic-legacy/5b4700013617f14f53ba~tplv-tt-large.image?x-expires=1981976085&x-signature=Sr7R9lqhKrK8SNPaD5jKK6Tq%2Bhk%3D
谢谢！！！
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