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US 5,245,899 AGranted
Crosscutting device for webs of material, particularly textile webs
AssigneeCarl Schmale GmbH & Co. KG
InventorPeter Rohe
Life of this patent
Estimating the term…
Abstract
A crosscutting device for webs of material, particularly textile webs includes a web feed with a web buffer arranged on a common frame with the cutting station, a cutting station with a rotating disk cutter, driven transport nippers and a tray for stacking the cut material, the rotating disk cutter being automatically moved back and forth across the web by means of a disengageable belt in one of the operating modes and in a second operating mode the disk cutter being movable manually across the web and at the same time also in the running direction of the web.
Claims22
An apparatus for crosscutting a web of material comprising:
- a frame;
- feeding means on said frame for supplying a web to be cut in a travel direction along a path thereof;
- nipping means mounted movably on said frame downstream of said feeding means for engaging a free end of the web and stretching the web at a length in said travel direction;
- a cutting station mounted on said frame along said path between said nipping and feeding means, said station being provided with:
- a guide rail mounted on said frame,
- a housing mounted slidably reciprocatingly on said guide rail in a cutting direction generally perpendicular to said travel direction and provided with a bottom,
- a guide mounted on said bottom of said housing,
- a carriage mounted slidably in said travel direction on said guide,
- a disc cutter provided with a motor and mounted on said carriage for crosscutting said web in said cutting direction,
- actuating means including a belt for displacing automatically said housing and said carriage in said cutting direction in a first automatic mode of operation of said apparatus,
- engaging means for selectively engaging said belt with said disc cutter performing one cut per stroke in the first mode of operations, said belt being disengaged from said disc cutter in a second manual mode of operations of said apparatus, and
- means operatively connected with said disc cutter for manually displacing said carriage reciprocatingly on said guide in said travel direction simultaneously with displacing of said housing in said cutting direction in the second manual mode of operations for crosscutting the web by said disc cutter.
9 more elements
An apparatus for crosscutting a web of material comprising:
- a frame;
- feeding means on said frame for supplying a web to be cut in a travel direction along a path thereof;
- a cutting station downstream of said feeding means on said frame provided with:
- a guide rail operatively connected with said frame,
- a housing mounted slidably on said rail, and
- a disc cutter crosscutting said web in a cutting direction generally perpendicular to said travel direction and operatively connected with said housing, and
- nipping means mounted movably on said frame downstream of said cutting station for engaging a free end of said web and stretching the web at a length in said travel direction;
- means including a disengageable belt for selectively engaging a belt with said disc cutter in a first mode of operations of said apparatus, said disc cutter being disconnected from said belt in a second mode of operations of said apparatus;
- means operatively connected with said housing for enabling manual reciprocating displacement of said disc cutter in said travel direction and in said cutting direction simultaneously with said housing in said second mode of operations for cutting said web along a plurality of crosscutting marks on said web spaced from one another along the path in said web;
- switching means operatively connected with said cutting station and including a plurality of limit switches mounted on said guide rail for defining an effective cutting path of said disc cutter with said housing in said cutting direction;
- and
- adjusting means on said guide rail for displacing said limit switches relative one another in said cutting direction, so that said path is varied in response to a corresponding width of the web.
9 more elements
An apparatus for crosscutting a web of material comprising:
- a frame;
- feeding means on said frame for supplying a web to be cut in a travel direction along a path thereof;
- a cutting station downstream of said feeding means on said frame provided with a disk cutter crosscutting said web in a cutting direction generally perpendicular to said travel direction and having a cutting range;
- nipping means mounted movably on said frame downstream of said cutting station for engaging a free end of said web and stretching the web at a length in said travel direction;
- actuating means including a disengageable belt for displacing said cutting station with said disc cutter in said cutting direction;
- engaging means for selectively engaging said belt with said disc cutter in a first mode of operations of said apparatus, said disc cutter being disconnected from said belt in a second mode of operations of said apparatus;
- means operatively connected with said cutting station for enabling manual reciprocating displacement of said disc cutter relative to said cutting station in said travel direction and said station in said cutting direction simultaneously in said second mode of operations for cutting said web along a plurality of crosscutting marks on said web spaced from one another along the path in said web;
- and
- laser means including a plurality of sensors and operatively connected with said cutting station for marking said cutting range of said disc cutter with visible laser lines in said second mode.
6 more elements
An apparatus for crosscutting a web of material comprising:
- a frame;
- feeding means on said frame for supplying a web to be cut in a travel direction along a path thereof;
- a rail guide mounted pivotally about an axis skewed to said travel direction on said frame downstream of said feeding station;
- a cutting station mounted reciprocatingly slidably in a cutting direction generally perpendicular to said travel direction on said rail guide and provided with a disc cutter;
- nipping means mounted movably on said frame downstream of said cutting station for engaging a free end of said web and stretching the web at a length in said travel direction;
- actuating means including a disengageable belt for displacing said cutting station with said disc cutter in said cutting direction;
- engaging means for selectively engaging said belt with said disc cutter in a first mode of operations of said apparatus, said guide rail following closely a warp thread in said first mode by pivoting about said axis, said disc cutter being disconnected from said belt in a second mode of operations of said apparatus;
- and
- coupling means operatively connected with said cutting station for enabling manual reciprocating displacement of said disc cutter relative to said cutting station in said travel direction and reciprocatingly displacing said station in said cutting direction simultaneously with said disc cutter in said second mode of operations for cutting said web along a plurality of crosscutting marks on said web spaced from one another along the path in said web.
6 more elements
An apparatus for crosscutting a web of material comprising:
- a frame;
- a rail guide mounted on said frame;
- feeding means on said frame for supplying a web to be cut in a travel direction along a path thereof;
- a cutting station downstream of said feeding means on said frame provided with a disc cutter mounted on said guide crosscutting said web in a cutting direction generally perpendicular to said travel direction;
- nipping means mounted movably on said frame downstream of said cutting station for engaging a free end of said web and stretching the web at a length in said travel direction;
- actuating means including a disengageable belt for displacing said cutting station said and disc cutter in said cutting direction;
- engaging means for selectively engaging said belt with said disc cutter in a first mode of operations of said apparatus, said disc cutter being disconnected from said belt in a second mode of operations of said apparatus;
- means for enabling manual reciprocating displacement of said disc cutter relative to said cutting station in said travel direction along said guide and in said cutting direction simultaneously with said station in said second mode of operations for cutting said web along a plurality of crosscutting marks on said web spaced from one another along the path in said web;
- and
- means mounted on said disc cutter for optically scanning each of said crosscutting marks on said web in said second mode and for guiding said disc cutter toward each of said marks along said guide.
7 more elements
An apparatus for crosscutting a web of material comprising:
- a frame;
- feeding means on said frame for supplying a web to be cut in a travel direction along a path thereof;
- a cutting station downstream of said feeding means on said frame provided with a disc cutter crosscutting said web in a cutting direction generally perpendicular to said travel direction;
- nipping means mounted movably on said frame downstream of said cutting station for engaging a free end of said web and stretching the web at a length in said travel direction;
- actuating means including a disengageable belt for displacing with said cutting station with said disc cutter in said cutting direction;
- engaging means for selectively engaging said belt with said disc cutter in a first mode of operations of said apparatus, said disc cutter being disconnected from said belt in a second mode of operations of said apparatus;
- and
- means operatively connected with said cutting station for enabling manual reciprocating displacement of said disc cutter relative to said cutting station in said travel direction simultaneously with displacing said cutting station in said cutting direction in said second mode of operations for cutting said web along a plurality of crosscutting marks on said web spaced from one another along the path in said web.
5 more elements
Dependencies are inferred from the claim text.