| 摘要 |
<p>Before the start of manufacturing of filter rods (6) from a filter roller moving together with a format tape (1), information regarding a segment (3) to be cut, the length of the filter rod (6), the sequence of segments (3) in the rod (6) and a constant distance between a feeding unit (2) and a cutting head (5) is entered into a control system, after which the control system calculates a basic static electronic relationship between drive systems of a servomotor (8) of the feeding unit (2) and a servomotor (9) of the cutting head (5) considering a drive system of a servomotor (10) of the format tape (1). After the start of manufacturing, the control system provisionally calculates a cutting moment necessary to obtain a proper length of the filter rod (6) and compares it with the basic static relationship calculated earlier, after which it makes a gradual adjustment of the cutting moment in relation to the calculated basic static relationship and determines an averaged cutting point of a filter roller considering the information about actual dimensions of the segments (3) and their actual positioning in the roller, conveyed by a sensor (7). During manufacturing, the averaged cutting point is compared by the control system with the cutting moment and, in order to keep the length tolerance of the filter rod (6), dynamically corrected considering the information about the segments (3) currently conveyed by the sensor (7). The control of the cutting moment and the correction of the averaged cutting point take place by adjusting electronic drive systems of the servomotor (8) of the feeding unit (2) and the servomotor (9) of the cutting head (5), with a constant position of the cutting head (5). In case of a change of the length of manufactured filter rods (6), an adjustment of the cutting head (5) is carried out.</p> |
