| 摘要 |
A stripper roller assembly employs first and second parallel spaced horizontally elongated rollers lying in a horizontal plane. A plurality of spaced horizontally elongated members are disposed at right angles to said rollers. Each member extends between and is secured to said rollers, each roller being freely rotatable about its horizontal axis in said members. A like plurality of horizontally elongated rack gear devices cooperate with the members. Each rack device is disposed adjacent a corresponding member intermediate said rollers and is horizontally slidable along the corresponding member between a first position at which the horizontal separation between the rack means are a selected one roller is a minimum and a second position at which said separation is a maximum. A horizontally elongated shaft is rotatably supported by the stationary main frame of the folding machine with which the assembly is used. A like plurality of pinion gears are keyed to the shaft, each pinion gear engaging a corresponding one of said rack devices. A like plurality of horizontal cylinders cooperative with the devices, each cylinder having a horizontal piston slidable back and forth therein between a fully withdrawn position and a fully extended position, one end of each piston being always disposed outside of its corresponding cylinder and being coupled to a corresponding one of said rack devices to cause same to slide back and forth between its first and second positions.
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