发明名称 |
HARMONIC PHASING DEVICE FOR PRINTING PRESS |
摘要 |
<p>HARMONIC PHASING DEVICE FOR PRINTING PRESS A dual harmonic gear phasing device forming a part of a web-fed printing tower or other web-handling station is disclosed which allows static or dynamic, 360.degree. infinite phase alterations of web-contacting rollers for coarse and fine tuning of the registration of a multiplestation printing press. The phasing device comprises an enclosed, oil filled structure having a pair of tandem coupled harmonic drive gears respectively connected through gearing or the like to the press drive and to a desired roller for phase changing purposes. Each phasing device also includes a selectively operable stepper motor coupled to one of the harmonic gears for effecting phase alterations. The harmonic gears serve as a 1:1 gear ratio transmission during normal running operations. The phasing device can be used on hard impression or perfecting printing towers, and on other types of web-handling equipment where proper registration is important, such as numbering and punching units. (Docket No. 16847)</p> |
申请公布号 |
CA1153245(A) |
申请公布日期 |
1983.09.06 |
申请号 |
CA19810379796 |
申请日期 |
1981.06.15 |
申请人 |
DIDDE GRAPHIC SYSTEMS CORPORATION |
发明人 |
URY, FRANK;PROPHETER, HOWARD L.;BIRD, CARLTON A. |
分类号 |
B65H23/188;(IPC1-7):B41F5/06 |
主分类号 |
B65H23/188 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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