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device for controlling the separation of reel-wound websheets, winding machine, and operational method for controlling the separation of websheets in winding machines
device for controlling the separation of reel-wound websheets, winding machine, and operational method for controlling the separation of websheets in winding machines
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机译:用于控制卷筒纸幅的分离的装置,卷绕机以及用于控制卷绕机中的纸幅的分离的操作方法
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摘要
Device for controlling the separation of the sheets of paper webs rolled in the form of logs, comprising a guide roller (RA) cooperating with further means (R4, R5) for rolling a paper web (2) so as to form a paper log and cooperating with means for providing pre-incision lines on the paper web (2) so as to divide it in multiple separable sheets. The device comprises pneumatic separation means (SP) adapted to direct a fluid jet (J) toward a pre-incision line (p) which separates the last sheet (LS) of a log (RO) in the course of formation from the first sheet (FS) of a subsequent log to be formed. The pneumatic separation means (SP) are inside the guide roller (RA) and the latter has an outer surface (72) with a plurality of through holes (73) allowing the fluid jet (J) produced by the pneumatic separation means (SP) to be directed towards the pre-incision lines (p). The device comprises suction means (200, 201) arranged downstream of the separation means (SP) relative to a direction (K) of rotation of the guide roller (RA). The suction means (200, 201) are inside the guide roller (RA). The suction means (200, 201) provoke a suction through the holes (73).
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