IT1108201B - Feeder and positioner of continuous tissue web for shearing - has control circuits regulating stepping motor by pulsed signals - Google Patents
Feeder and positioner of continuous tissue web for shearing - has control circuits regulating stepping motor by pulsed signalsInfo
- Publication number
- IT1108201B IT1108201B IT363478A IT363478A IT1108201B IT 1108201 B IT1108201 B IT 1108201B IT 363478 A IT363478 A IT 363478A IT 363478 A IT363478 A IT 363478A IT 1108201 B IT1108201 B IT 1108201B
- Authority
- IT
- Italy
- Prior art keywords
- zone
- cut
- feeder
- cutters
- tissue
- Prior art date
Links
- 230000001105 regulatory effect Effects 0.000 title 1
- 238000010008 shearing Methods 0.000 title 1
- 230000015572 biosynthetic process Effects 0.000 abstract 1
Landscapes
- Controlling Rewinding, Feeding, Winding, Or Abnormalities Of Webs (AREA)
- Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)
Abstract
A continuous web of tissue is fed forward to be cut into sections and is stopped at predetermined positions. The sections are to be cut in a predetermined zone, and the equipment includes means by which the tissue is cut periodically in conformity with work cycles corresponding to the formation by the feeder of the section to be cut. Means are also provided for feeding the tissue to the cutting arrangement and there are means of detecting a reference marking on the tissue which indicates the cutting zone. The control system includes means of checking the predetermined cutting zone relatively to the zone which would be cut through by the cutters, and of determining any difference between the two zones. Further means are provided to adjust and correct the possible difference mentioned relatively to the zone of action of the cutters. These means are arranged to receive direct or indirect signals from the first means of control, as a function of the possible difference mentioned, and to activate the feeder and/or the cutters so that the possible difference mentioned relatively to the zone of action of the cutters is eliminated. The device is not only able to detect the position of faults in the centralising of the zones for cutting, but can determine them and correct them for each separate section. The device is also able to detect differences in the pitch between one check motif and the next, and detectors can be positioned wherever they are required or according to the available space.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT363478A IT1108201B (en) | 1978-12-22 | 1978-12-22 | Feeder and positioner of continuous tissue web for shearing - has control circuits regulating stepping motor by pulsed signals |
ES487227A ES487227A1 (en) | 1978-12-22 | 1979-12-21 | Apparatus to move and adjust a continuous sheet and to cut it in portions (Machine-translation by Google Translate, not legally binding) |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT363478A IT1108201B (en) | 1978-12-22 | 1978-12-22 | Feeder and positioner of continuous tissue web for shearing - has control circuits regulating stepping motor by pulsed signals |
Publications (2)
Publication Number | Publication Date |
---|---|
IT7803634A0 IT7803634A0 (en) | 1978-12-22 |
IT1108201B true IT1108201B (en) | 1985-12-02 |
Family
ID=11110942
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT363478A IT1108201B (en) | 1978-12-22 | 1978-12-22 | Feeder and positioner of continuous tissue web for shearing - has control circuits regulating stepping motor by pulsed signals |
Country Status (2)
Country | Link |
---|---|
ES (1) | ES487227A1 (en) |
IT (1) | IT1108201B (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5292299A (en) * | 1992-11-25 | 1994-03-08 | Fmc Corporation | Maintaining perforation phasing |
US5447486A (en) * | 1992-11-25 | 1995-09-05 | Fmc Corporation | Maintaining perforation phasing |
-
1978
- 1978-12-22 IT IT363478A patent/IT1108201B/en active
-
1979
- 1979-12-21 ES ES487227A patent/ES487227A1/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
IT7803634A0 (en) | 1978-12-22 |
ES487227A1 (en) | 1980-06-16 |
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