| 摘要 |
PURPOSE:To register the printed patterns of a label material with the printed patterns of a bag material using a simple device by controlling the delivery rate of one material through control signals obtained from the signal corresponding to the deviation in the printed patterns, when said label material is delivered and laminated to said bag material with their parinted patterns registered. CONSTITUTION:Materials 1 and 2 in the state of film are delivered downward by the aid of guide rolls 7-10, and the part coat 2a of material 2 is fused when it passes through a heater 16. Then, both materials 1 and 2 are compressed and bonded to each other when passing between press rolls 11 and 12, and transported to a bag making machine. The mark of each of the materals 1 and 2 is detected by detectors 14 and 15 respectively and the delivery rate of the material 1 is detected by a rotary encoder 17a, and these outputs (a)-(c) are inputted into a computer 20. The relative distance between the materials 1 and 2 is measured from the time interval of the pulses correpsonding to each of the output signals (a) and (b), with the output signal (a) used as the reference, i.e., from the-number-of-pulses signal (e) of the signal (c) obtained from the deviation of the signal (b) from (a). And, the braking force of a solenoid brake 6 is varied in accordance with the measured value. |
