초록 ▼

A foam contouring machine has first and second rollers mounted to a machine frame for rotation about mutually parallel axes. The first and second rollers have different diameters and define between them a nip. A cutting edge is mounted for cutting foam material drawn through the nip by rotation of t

A foam contouring machine has first and second rollers mounted to a machine frame for rotation about mutually parallel axes. The first and second rollers have different diameters and define between them a nip. A cutting edge is mounted for cutting foam material drawn through the nip by rotation of the rollers. Each roller has a drive motor, and a controller is connected to each drive motor for independently controlling the speed of rotation of the rollers, the controller equalizing the speed of surface rotation of the rollers for rollers of different diameters. The first roller may be a pattern roller and the second roller may be a backup or compression roller. The machine also has a drive coupling assembly, which has selectable first and second modes of operation for converting operation of the machine between a foam surfacing and a foam profiling operation. The first mode independently couples each of the motors to a corresponding one of the rollers. The second mode couples only one of the motors to both of the rollers, so that the rollers are interlocked for rotation.

대표청구항 ▼

[ What is claimed is:] [1.] A foam cutting machine comprising:first and second rollers mounted to a machine frame for rotation about mutually parallel axes, said first and second rollers being of different diameters and defining therebetween a gap;a cutting edge mounted for cutting material drawn th

[ What is claimed is:] [1.] A foam cutting machine comprising:first and second rollers mounted to a machine frame for rotation about mutually parallel axes, said first and second rollers being of different diameters and defining therebetween a gap;a cutting edge mounted for cutting material drawn through said gap by rotation of said rollers;first and second drive motors for driving said first and second rollers respectively;controller means connected to said first and second drive motors for independently controlling the speed of rotation of said rollers, said controller means being adjustable for equalizing the speed of surface rotation of said rollers for first and second rollers of different diameters; anda coupling assembly operatively interposed between said first and second drive motors and said rollers, said coupling assembly having selectable first and second modes of operation, said first mode of operation being operative for coupling each of said motors to a corresponding one of said rollers, said second mode of operation being operative for coupling only one of said drive motors to both of said rollers.