CA2312232A1

CA2312232A1 - Device and method for working the edges of pages

Info

Publication number: CA2312232A1
Application number: CA 2312232
Authority: CA
Inventors: Franz J. Landen
Original assignee: Individual
Current assignee: Individual
Priority date: 1999-06-21
Filing date: 2000-06-21
Publication date: 2000-12-21
Anticipated expiration: 2020-06-21
Also published as: CA2312232C; EP1063104A2; EP1063104B1; EP1063104A3

Abstract

The present invention concerns a device (1) for machining sheet edges (3) during bookmaking, with at least one cutting tool (10) for machining the sheet edges (3) of an Inner book (2) running across the cutting tool (10), such that paper fibers are exposed along the sheet edges (3). The invention provides that the cutting tool (10) has at least two axles (20, 30) arranged in pairs at a slanting position angle to each other and turning In opposite directions, wherein the axles (30) arranged to the left of the inner book in the direction of travel (L) of the inner book (2) can turn clockwise and the axles (20) arranged to the right of the inner book in the direction of travel (L) of the inner book (2) can tum counterclockwise, and wherein each axle (20, 30) is outfitted with one or more milling disks (21, 31), which have cutting devices (22, 32) on their outer circumference.
Moreover, the present invention concerns a method for operating such a device.

Claims

Patent Claims Device (1) for processing of sheet edges (3) in bookmaking, with at least one cutting tool (10) for processing the sheet edges (3) of an inner book (2) running across the cutting toot (10) such that paper fibers are exposed along the sheet edges (3), characterized in that the cutting tool (10) has at least two axles (20, 30) arranged slanting at an angle to each other and turning in opposite directions, wherein the axles (30) arranged to the left of the inner book in the direction of travel (L) of the inner book (2) can tum clockwise and the axles (20) arranged to the right of the inner book in the direction (L) of travel of the inner book (2) can tum counterclockwise, and wherein each axle (20, 30) is outfitted with one or more milling disks (21, 31), which have Cutting devices (22, 32) on their outer circumference.
2. Device (1') for processing of sheet edges (3) in bookmaking, with a least one cutting tool (100) for processing the sheet edges (3) at an finer book (2) running across the cutting tool (100) such that paper fibers are exposed along the sheet edges (3), characterized in that cutting tool (100) has at least two pairs of axle systems (200, 300) arranged slanting at an angle to each other, with several uptake axles (200', 300') turning in opposite directions, whereby the uptake axles (300') arranged to the left of the inner book in the direction of travel (L) of inner book (2) can turn clockwise and the uptake axles (200') arranged to the right of the inner book in the direction of travel (L) of inner book (2) can turn counter clockwise and wherein each uptake axle (200', 300') is outfitted with one milting disk (210, 310), which have cutting devices (220, 320) on their outer circumference.
3. Device according to claim 1, further characterized in that the cutting tool (10) has precisely one pair of axles (20, 30).
4. Device according to one of the preceding claims, further characterized in that all axles (20, 30) have the same position angle.
5. Device according to one of claims 1 to 2, further characterized in that the axles (30) situated to the left of the Inner book (2) are arranged et an angle of 3 to 12 degrees to the right and the axles situated to the right of the inner book (2) arse arranged at an angle of 10 to 25 degrees to the left
6. Device according to one of the preceding claims, further Characterized in that a separate drive, especially a belt drive, is provided for each axle (20, 30) of a pair.
7. Device according to one of the preceding claims, further Characterized in that the diameter of the milling disks (21, 31) is 10 to 50 mm.
8. Device according to one of the preceding claims, further characterized in that 50 to 80 teeth per milling disk (21, 31) are provided as the cutting device (22, 32), preferably with a grinding angle of 30 degrees.
9. Device according to one of the preceding claims, further characterized in that the left axles (30) of a pair are shorter than the right axles (20) and/or the axles (20, 30) are arranged offset from each other and/or the number of teeth per milling disk on the axles is different.
10. Device according to one of the preceding claims, further characterized in that the cutting device (10) is continuously adjustable In height or several cutting toots (10) are arranged in increasing height one after the other in the direction of travel (L) of the inner book (2).
11. Device according to one of the preceding claims, further characterized In that the cutting device is provided in a housing, which has an evacuation device to remove the paper scraps produced during the machining of the sheet edges (3).
12. Method for machining the sheet edges during bookmaking, wherein the sheet edges of an inner book era moved across at least one cutting tool, so that paper fibers arc exposed along the sheet edges, characterized in that a cutting tool according to one of claims 1 to 10 is used.
13. Method according to claim 11, characterized in that the arrangement of the milling disks and the circumferential velocity of the axles are chosen such that the sheet edges of the inner book can be machined plane or have a profile worked into them.
14. Method according to one claims 91 to 12, further characterized in that a partial vacuum Is applied to the Cutting tool.
15. Inner book clamp (SO), especially for a device (1) according to one of claims 1 to 10, which has a stationary stopping surface (51) and a movable stopping surface (52), which are joined together by at least two axles (53, 54), wherein the movable stopping surface (52) can be moved along the axles (53, 54), characterized in that toothed racks are provided at the ends of the axles (63, 54) assigned to the movable stopping surface, which interact with a pinion so that the movable stopping surface (62) can be moved by activating the pinion.
16. inner book clamp according to claim 14, further characterized in that the pinion can be activated by means of an electric motor.
17. Method for controlling an inner book clamp according to one of claims 14 or 16, characterized in that the inner book clamp is first opened to the maximum value and then Closed to contain an inner book, and during the opening and closing the movements of the pinion or the respective time required for tile opening and closing are measured and memorized in a control unit and the difference between the two values is computed and memorized, and the inner book clamp then only opens to the determined difference value in order to accommodate additional inner books Of the same type.
18. Method according t4 claim 18, further characterized in that a value is added to the determined difference, corresponding to the volume of the highest-volume paper contained in the inner books being handled.
19. Drive unit (40) for an inner book clamp, especially according to one of claims 14 or 15 and/or for a device according to one of claims 1 to 10, characterized in that the drive unit has a motor-operated threaded spindle (41), traveling parallel to the trajectory (B) of the Inner book clamp (50), and a spindle nut (42), traveling on the threaded spindle (41 ) and coupled to the Inner book clamp (50).
20. Drive unit according to claim 18, further characterized in that a belt drive is additionally provided to drive the threaded spindle (41).
21, Drive unit according to one of claims 18 to 19, further characterized in that at least the thread of the threaded nut (42) consists of a plastic with a low coefficient of friction relative to the spindle material, preferably PTFE.
22, Drive unit according to one of claim 18 to 20, further characterized in that the threaded spindle (41) is mounted outside the trajectory of the inner book clamp (50).