Method and apparatus for processing material

• US 7,835,808 B2
• Filed: 12/21/2007
• Issued: 11/16/2010
• Est. Priority Date: 08/20/2003
• Status: Active Grant

• Current Assignee: Precision Automation Incorporated
• Original Assignee: Precision Automation Incorporated
• Inventors: Lee, David, Morgan, David A., Sawyer, Philip P.
• Primary Examiner(s): DeCady; Albert
• Assistant Examiner(s): Stevens; Thomas H
• Application Number:
  US12/005,116
• Publication Number:
  US 20090100974A1
• Time in Patent Office: 1,061 Days
• Field of Search: 83/84, 700/173, 700/84
• US Class Current: 700/84
• CPC Class Codes: B23D 59/001 Measuring or control devices, e.g. for automatic control of work feed pressure on band saw blade measuring in general G01; controlling in general G05
• CPC Class Codes: B23D 59/008 comprising computers
• CPC Class Codes: B27M 1/08 by multi-step processes
• CPC Class Codes: Y10T 83/04 Processes
• CPC Class Codes: Y10T 83/145 Including means to monitor product
• CPC Class Codes: Y10T 83/155 Optimizing product from unique workpiece
• CPC Class Codes: Y10T 83/2033 Including means to form or hold pile of product pieces

Abstract

A system, including apparatus and method, for processing material includes a computer connected to a saw. A pusher is used to convey material along a processing path. The computer is programmed to control optimal processing of material to satisfy a cut list. The system for processing material may further include a printer configured to print labels for application to work pieces processed by the system.

Claims

1. A method of cutting material comprising

connecting a computer to a saw machine, the saw machine including a saw and a pusher for pushing a trailing end of a piece of wood downstream along a processing line toward the saw,

programming the computer to optimize cutting of stock to satisfy a cut list,

entering a cut list into the computer,

selecting a piece of wood to be processed,

positioning the piece of wood at a data input station along a data input line parallel to the processing line, a long axis of the piece of wood being parallel with the processing line,

measuring length data of the piece of wood, and inputting the length data into the computer,

marking a defect in the piece of wood by manually signaling location of proximal and distal boundaries of the defect without affixing an actual mark on the piece of wood, and inputting defect location data into the computer,

running an optimization program in the computer to determine a plan for optimal cutting of the piece of wood to exclude the defect and fulfill cut list requirements,

positioning the piece of wood along the processing line between the pusher and the saw,

executing the plan including computer controlled driving of the pusher to push the trailing end of the piece of wood downstream toward the saw, and computer controlled cutting of the piece of wood into one or more cut list parts, and

automatically printing labels for the one or more cut list parts, each label indicating information about the cut list part.

2. The method of claim 1 further comprising editing, combining, or modifying the cut list before downloading it to a controller before processing the piece of wood.

3. The method of claim 1 wherein the step of running an optimization program includes calculating a plan for optimal cutting of the piece of wood to fulfill cut list requirements, and for managing remainder material that is not useful for satisfying the cut list, including salvaging material of specified dimension for future use.

4. The method of claim 1 wherein the marking step includes a step of deflecting a light beam at a location near a defect in the piece of wood.

5. The method of claim 1 further comprising

activating a visible signal in relation to the marking step, indicating completion of a data entry step.

6. The method of claim 4 wherein the marking step is carried out by a marking system including an object for marking location of defects, the object being slidable along a track parallel to the processing line.

7. The method of claim 6 wherein the track runs along the data input line.

8. The method of claim 1, further comprising manually applying a label to a workpiece.

9. The method of claim 1, further comprising automatically applying a label to a workpiece.

10. A method of cutting material comprising

connecting a computer to a saw machine, the saw machine including a saw and a pusher for pushing a trailing end of a piece of wood downstream along a processing line toward the saw,

programming the computer to optimize cutting of stock to satisfy a cut list,

entering a cut list into the computer,

selecting a piece of wood to be processed,

positioning the piece of wood at a data input station along a data input line parallel to the processing line, a long axis of the piece of wood being parallel with the processing line,

measuring length data of the piece of wood, and inputting the length data into the computer,

marking a defect in the piece of wood by indicating proximal and distal boundaries of the defect, and inputting defect location data into the computer,

running an optimization program in the computer to determine a plan for optimal cutting of the piece of wood to exclude the defect and fulfill cut list requirements,

positioning the piece of wood along the processing line between the pusher and the saw,

executing the plan including computer controlled driving of the pusher to push the trailing end of the piece of wood downstream toward the saw, and computer controlled cutting of the piece of wood into one or more cut list parts, and

automatically printing and applying labels to the one or more cut list parts, each label indicating information about the cut list part.

11. A method of cutting material comprising

connecting a computer to a saw machine, the saw machine including a saw and a pusher for pushing a trailing end of a piece of wood downstream along a processing line toward the saw,

programming the computer to optimize cutting of stock to satisfy a cut list,

entering a cut list into the computer,

selecting a piece of wood to be processed,

positioning the piece of wood at a data input station along a data input line parallel to the processing line, a long axis of the piece of wood being parallel with the processing line,

measuring length data of the piece of wood, and inputting the length data into the computer,

marking a defect in the piece of wood by indicating proximal and distal boundaries of the defect, and inputting defect location data into the computer,

running an optimization program in the computer to determine a plan for optimal cutting of the piece of wood to exclude the defect and fulfill cut list requirements,

positioning the piece of wood along the processing line between the pusher and the saw,

executing the plan including computer controlled driving of the pusher to push the trailing end of the piece of wood downstream toward the saw, and computer controlled cutting of the piece of wood into one or more cut list parts,

automatically printing labels to the one or more cut list parts, each label indicating information about the cut list part, and

manually applying one or more labels to the one or more cut list parts.