SPREADER FOR SLIT WEB MATERIAL

• US 3,724,737 A
• Filed: 10/06/1971
• Issued: 04/03/1973
• Est. Priority Date: 10/06/1971
• Status: Expired due to Term

• Current Assignee: Hawker Siddeley Canada Inc.
• Original Assignee: Ernest Robert Bodnar
• Inventors: Bodnar, Ernest Robert
• Primary Examiner(s): Schacher, Richard A.
• Application Number:
  US05/187,100
• Time in Patent Office: 545 Days
• Field of Search: 226/109,110,199 83/439,448,105,107 242/56.1,56.4,56.5
• US Class Current: 242/615.2
• CPC Class Codes: B21C 47/006 winding-up or winding-off several parallel metal bands
• CPC Class Codes: B21C 47/34 Feeding or guiding devices not specially adapted to a particular type of apparatus
• CPC Class Codes: B21C 47/3441 Diverting the leading end, e.g. from main flow to a coiling device
• CPC Class Codes: B23D 33/02 Arrangements for holding, guiding, and/or feeding work during the operation
• CPC Class Codes: B65H 23/02 transversely by tentering, gripper, or like apparatus operating on fabric webs D06C
• CPC Class Codes: B65H 2301/351 parallel to the direction of displacement
• CPC Class Codes: B65H 2301/4148 slitting
• CPC Class Codes: B65H 2404/15212 rotating, pivoting or oscillating around an axis perpendicular to the roller axis
• CPC Class Codes: Y10T 83/2083 Deflecting guide

Abstract

A web spreader assembly having two pairs of web spreader rolls and associated with a predetermined pass line roll, by means of which the slit webs are maintained in predetermined orientation relative to the first of each of the pairs of spreader rolls, and in which the spreader rolls are mounted on a movable frame work which is swingable upwardly and downwardly so as to align the same in any desired positional relationship with relation to the rewind mandrel. The pairs of spreader rolls are preferably mounted within such a swingable framework with their outboard ends fastened to portions of the framework, and with a movable central framework, the inboard ends of the pairs of rolls being fastened to the movable inner framework, and means being provided whereby the movable inner framework can be swung upwardly and downwardly relative to the main framework so as to swing such pairs of rolls into any desired angular relationship relative to the plane of the web.

Claims

1. Apparatus for spreading slit web material passing over pass line roll means on a predetermined axis and path of movement and comprising;

spreader frame means pivotally mounted for movement relative to said pass line roll means into and out of said predetermined path of said web material;

right and left hand pairs of parallel spaced apart spreader roll means supported by said frame means and movable therewith;

swingable bearing means on said frame means for supporting the outboard ends of said pairs of spreader roll means at different elevations on respective right and left hand sides of said frame means;

swingable support arm means swingably mounted on said frame means;

swingable bearing means on said support arm means for supporting the inboard ends of said pairs of spreader roll means;

arm control means connected to said support arm means for controllably swinging the same relative to said frame means, said swingable bearing means moving in unison therewith, and, elevation control means connected to said frame means for moving and locating said frame means in a desired position relative to said pass line roll means.

2. The apparatus as claimed in claim 1 wherein said spreader frame means is of generally rectangular construction, and incorporating frame extension means at one end thereof, and bearing means on said frame extension means, attachable to said pass line roll means along the axis of rotation thereof, whereby said frame means is swingably movable relative thereto about the center of rotation of said pass line roll means.

3. Apparatus as claimed in claim 1 wherein said right and left hand pairs of spreader rolls are arranged on respective sides of said spreader frame means, in planes vertically spaced apart from one another.

4. The apparatus as claimed in claim 1 wherein said spreader frame means includes upper and lower right and left hand frame side members, and frame cross members extending therebetween, and wherein said support arm means comprises upper and lower arm members swingably mounted to said cross members for swinging upwardly and downWardly intermediate said frame side members, in a substantially vertical path.

5. The apparatus as claimed in claim 4 including control means connected to said support arm means, and operable to swing said support arm means upwardly and downwardly and locate the same in a predetermined desired position.

6. The apparatus as claimed in claim 4 wherein said upper and lower support arm members are attached to said frame cross members in vertically offset relationship, and including link means pivotally connected between the free ends of said arm members, said link means being offset in said spaced apart vertical planes as aforesaid.

7. The apparatus as claimed in claim 1 wherein said elevation control means comprises a power cylinder member, means fixedly mounting a lower end of said cylinder, drive rod means extending from the upper end of said cylinder and means pivotally connecting the free end of said drive rod to said spreader frame means whereby to raise and lower the same.