发明名称 |
Apparatus for adjusting an anglebar or a compensator roller in a folder of a printing press |
摘要 |
An anglebar and/or a compensator roller in a folder of a printing press is adjustable. A motor has an output shaft operatively connected with the anglebar and/or the compensator roller to, when driven, adjust the position of the anglebar and/or the compensator roller. A tachometer provides a speed reference signal indicative of the speed of movement of a web of sheet material relative to the anglebar and/or the compensator roller. A web position sensor provides an adjustment control signal indicating that the anglebar and/or the compensator roller should be adjusted. A computer responds to the speed reference signal and the adjustment control signal to control a DC drive. The DC drive drives the motor at a speed which varies with the speed of movement of the web of sheet material. The anglebar and/or the compensator roller is thereby moved to a desired position at a rate which is a function of the speed of movement of the web of sheet material relative to the anglebar and/or the compensator roller.
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申请公布号 |
US5048810(A) |
申请公布日期 |
1991.09.17 |
申请号 |
US19900615219 |
申请日期 |
1990.11.19 |
申请人 |
HARRIS GRAPHICS CORPORATION |
发明人 |
PALMATIER, ROLAND T.;GUARALDI, GLENN A. |
分类号 |
B41F13/02;B41F13/54;B65H23/188 |
主分类号 |
B41F13/02 |
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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