APPARATUS FOR CUTTING VENEER OR OTHER STRIP MATERIAL

• US 3,845,679 A
• Filed: 10/09/1973
• Issued: 11/05/1974
• Est. Priority Date: 10/09/1972
• Status: Expired due to Term

• Current Assignee: Bernhard Rhotert
• Original Assignee: Bernhard Rhotert
• Inventors: Rhotert, Bernhard
• Primary Examiner(s): Meister, J. M.
• Application Number:
  US05/404,797
• Time in Patent Office: 392 Days
• Field of Search: 83/110,362,364,370,371
• US Class Current: 83/110
• CPC Class Codes: B27L 5/08 Severing sheets or segments from veneer strips; Shearing devices therefor; Making veneer blanks, e.g. trimming to size making match sticks from veneer B27L9/00; making a layered cutting block B27L5/00
• CPC Class Codes: Y10T 83/2094 Means to move product at speed different from work speed
• CPC Class Codes: Y10T 83/528 To delay response to work-senser
• CPC Class Codes: Y10T 83/531 With plural work-sensing means
• CPC Class Codes: Y10T 83/541 Actuation of tool controlled in response to work-sensing means

Abstract

Apparatus for cutting veneer strip comprises an infeed conveyor which determines the speed of the strip, a removal conveyor, and a cutter between the conveyors. The removal conveyor is driven at a higher speed that the infeed conveyor, and a control mechanism is arranged above the removal conveyor to sense the speed of material moving along the removal conveyor. If material is travelling along the removal conveyor at the speed of the infeed conveyor, that is if the material on the removal conveyor is still connected to the strip, the control mechanism actuates the cutter. If the material is travelling at the speed of the removal conveyor, that is if the material has been previously cut from the strip, the cutter device is not actuated. The control mechanism is in the form of photocells which sense the leading edge of the material, and a timer actuated by the photocells.

Claims

1. In apparatus for cutting strip materal, a material infeed conveyor, cutter means downstream of the infeed conveyor, a removal conveyor downstream of the cutter means, the removal conveyor being drivable at a higher speed than the infeed conveyor, and control means operative to selectively actuate the cutter means, the cutter means also being actuable independently of the control means, said control means comprising first and second sensor means spaced aLong the path of movement of the removal conveyor and operative to sense material moving along the removal conveyor, and timer means responsive to the sensor means to determine the speed of movement of the material moving along the removal conveyor such that the cutter means is actuated if the said speed is less than a predetermined speed.

2. Apparatus as claimed in claim 1, further comprising, an intake device arranged above the infeed conveyor.

3. Apparatus as claimed in claim 2, further comprising, infinitely adjustable transmission means operative to vary the speed of the infeed conveyor.