Computer controlled sheet feeder
AssigneeMultifeeder Technology, Inc.
InventorArild Vedoy
Life of this patent
Estimating the term…
Abstract
A sheet feeder having parallel opposing shafts with rollers or belts for engaging sheets. The sheet feeder having one control to adjust the height of both sides of one shaft so that the rollers apply the same force to both sides of the sheet to feed the sheet straight preventing the sheets from jamming in the sheet feeder. The sheet feeder can have manual or electronic height adjustments. The gap between the shafts can be quickly and easily changed for quickly changing production runs with different thickness product. The shafts are three-piece shafts for ease of changing the rollers on the shaft. All the bearings are pregreased and sealed to protect the bearings from dirt and debris. Rods connect the height adjustment on both sides of the shaft so both sides are adjusted by the same amount at the same time.
Claims20
A device having adjustable position shafts comprising:
- a first bearing assembly and a second bearing assembly spaced apart from the first bearing assembly, each bearing assembly having,
- a sliding block bearing shaft,
- a sliding block bearing for sliding up and down in the sliding block bearing shaft,
- a threaded shaft portion extending into each sliding block bearing,
- a ball screw inserted into the threaded shaft portion and engaging the bearing assembly for moving the sliding block bearing in the bearing housing shaft when the ball screw is rotated,
- a worm gear attached to the ball screw,
- a shaft having a thread thereon for engaging and turning the worm gear and rotating the ball screw to move the sliding block bearing in the sliding block bearing shaft of the bearing assembly when the shaft is rotated,
- a means for connecting the shafts in the first bearing assembly and the second bearing assembly such that both ball screws are turned simultaneously to raise and lower the sliding block bearings to the same position in the bearing assemblies at the same time.
Dependencies are inferred from the claim text.