| 摘要 |
The herein method and apparatus is used in connection with a corrugator machine. Corrugator machines convert paper from a web roll into flat corrugated box blanks. Such corrugator machines have a number of sections for forming such box blanks, and the devices in these sections are driven in synchronism by a line shaft. In the herein apparatus the blanks discharged from the corrugator lengthwise are moved at right angles, then shingled and stacked. The velocity of each of the steps in handling the sheets is co-ordinated for a relative speed ratio between the right angle take off of the sheets, the shingling and stacking, and is co-ordinated with the speed of the corrugator machine, through the line shaft in such a manner that when the corrugator speed varies, then the right angle take off, the shingling and the stacking also varies, but the same relative speed ratios between the right angle take off conveyor, shingling or transfer conveyor, and stacking conveyor are preserved. The ratio adjustments are predicated on the basic equation of the speed of movement on the right angle take off which receives the blanks from the corrugator as follows: Vd = (W/L) Vc (1-S) in which Vc is the speed of the corrugator in ft./min., Vd is the speed on the right angle take off, W is the width and L is the length of the blank, and S is the ratio of the shingle, namely, S = O/W in which O is the overlap; and the basic equation for the speed of the transfer conveyor or shingling conveyor relatively to the right angle take off is Vt = (W/L) Vc (1-St) IN WHICH Vt is the speed of the transfer or shingling conveyor in ft./min. and St is the ratio of the shingle on the transfer conveyor; and the basic equation for the speed of the stacker is Vs = (W/L) Vc (1-Ss) IN WHICH Vs is the speed of the stacker conveyor in ft./min. and Ss is the ratio of the shingle on the stacker. A device is provided for adjusting the ratio of the respective conveyors to predetermine the speeds of the conveyors relatively to the speed of the corrugator in accordance with the width and length of the blanks. A connection is provided to the line shaft of the corrugator so as to automatically control the overall speed in accordance with the variation of speed of the corrugator but maintaining the predetermined relative ratios between the respective conveyors.
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