×

Apparatus for splicing the trailing end of a web from an exhausted supply roll to the leading end of a web from a new supply roll

  • US 4,492,609 A
  • Filed: 03/09/1982
  • Issued: 01/08/1985
  • Est. Priority Date: 03/12/1981
  • Status: Expired due to Fees
First Claim
Patent Images

1. Apparatus for splicing the trailing end of a web from an exhausted supply roll to the leading end of a web from a new supply roll with the leading end having an outwardly facing adhesive, said apparatus comprising:

  • a cutter cylinder having a single cutter adapted for cutting through a web;

    a backing cylinder;

    a longitudinal sector-shaped portion on the periphery of said backing cylinder and aligned parallel to the axis of said backing cylinder, with suction holes for retaining the leading end of the new web behind the severing cut;

    a first tape-applying cylinder, adapted to carry a tape which is adhesive on one side, and to apply the adhesive tape to the two webs at their abutting cut edges as they pass between the first tape applying cylinder and said backing cylinder;

    means to move said backing cylinder into engagement with the new supply roll;

    means for accelerating said new supply roll, said cutter cylinder and said backing cylinder to the same peripheral velocity as said exhausted supply roll;

    controlling means for controlling the rotation of said backing cylinder and said new supply roll, so that said adhesive means engages said backing cylinder at a position other than at said sector-shaped portion, whereby a length of said leading end of said web is wrapped around the periphery of said backing cylinder and cut from the web of the new roll; and

    means for moving the cutter cylinder and the first tape-applying cylinder into and out of engagement with the common backing cylinder.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×