초록 ▼

A device for continuous production of foil expanded metal comprising a cutting unit for continuous production of parallel, staggered longitudinal cuts in the foil, and an expansion unit for expanding the foil with the cuts perpendicularly to the longitudinal direction of the foil, the expansion unit

A device for continuous production of foil expanded metal comprising a cutting unit for continuous production of parallel, staggered longitudinal cuts in the foil, and an expansion unit for expanding the foil with the cuts perpendicularly to the longitudinal direction of the foil, the expansion unit provided with toothed belts which grasp both edges of the foil, in addition to a running body which is arranged therebetween to expand the foil running thereon. The configuration of the device is such that a toothed belt and a toothed wheel interacting therewith at a given angle are assigned to each foil edge, the edge of the foil is grasped between the toothed belt and the toothed wheel within an input and an output point. The toothed wheels are inclined in relation to each other so that their distance perpendicular to the longitudinal direction of the foil increases at the contact angle in the longitudinal direction of the foil.

대표청구항 ▼

1. A device for continuous production of expanded metal from foil with a cutting unit for continuous creation of parallel, staggered cuts in a longitudinal direction of the foil, and with an expansion unit for expanding the cut foil in a direction generally transverse to the longitudinal direction o

1. A device for continuous production of expanded metal from foil with a cutting unit for continuous creation of parallel, staggered cuts in a longitudinal direction of the foil, and with an expansion unit for expanding the cut foil in a direction generally transverse to the longitudinal direction of the foil, said device having toothed belts to grip both edges of the foil and a feed-surface body arranged between the toothed belts to spread the foil traveling thereon, characterized in that a toothed belt (12) and a toothed gear (11) cooperating over a specified belt-wrap angle are arranged at each foil edge, between which the foil edge is gripped between an entry point (22) and an exit point (23), and the toothed gear (11) at one foil edge is inclined relative to the toothed gear at the other foil edge so that their spacing, generally transverse to the longitudinal direction of the foil, increases over the belt-wrap angle in the longitudinal direction of the foil. 2. The device of claim 1, characterized in that a transverse axis (25), which runs through the entry point (22) of the foil (13), of the tooth gear (11) is outwardly inclined relative to the foil (13). 3. The device of claim 1, characterized in that the toothed gears are rotated about their transverse axis, which runs through the entry point. 4. The device as in claim 1, characterized in that a respective toothed belt guide roller (14, 15) is arranged at each of the entry and exit points (22, 23) of the foil (13). 5. The device of claim 4, characterized in that the toothed belts (12) are structured to be endless. 6. The device of claim 4, characterized in that an additional toothed belt guide roller (16) is provided. 7. The device of claim 6, characterized in that the guide roller (15), at the exit point (23), can be vertically adjusted, and the additional guide roller (16) can be horizontally adjusted. 8. The device of claim 4, characterized in that the rotational axes of the toothed gear (11) and of the guide rollers (14, 15, 16) are parallel. 9. The device of claim 1, characterized in that the feed-surface body comprises at least one idling spread roller with a feed surface that is curved, which is arranged near the entry point (22). 10. The device of claim 1, characterized in that the feed-surface body comprises two idling spread rollers (18, 20) on a common axis near the entry point (22), and a downstream idling spread roller (19) having a curved feed surface. 11. The device of claim 1, characterized in that the belt-wrap angle is approximately 90°. 12. The device of claim 1, characterized in that a distance between the toothed gears (11) and toothed belts (12) is adjustable in a transverse direction of the foil (13). 13. The device of claim 1, characterized in that a foil guide roller (17) is arranged downstream of the exit point (23), in a foil-travel direction. 14. The device of claim 1, characterized in that the toothed gears (11) are rotated synchronously and in alignment with tooth spacings. 15. The device of claim 4, characterized in that one of the toothed guide rollers (14, 15) at the a respective entry and exit point (22, 23) is driven, and has toothing which acts together with corresponding toothing on an underside of the toothed belt. 16. The device of claim 1, characterized in that the foil is aluminum foil.