# US 7,607,970 B1 · Planing and polishing machine

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- Number: US 7,607,970 B1
- Document ID: US7607970B1
- Status: Granted
- Kind: B1
- Application number: 12/174,135
- Filed: 2008-07-16
- Granted: 2009-10-27
- Earliest claimed: 2008-07-16
- Inventors: Bor-Yann Chuang
- Web page: https://patentgrep.com/patent/US7607970B1

## CPC

- B24B 7/28: for grinding wood
- B24B 47/12: by mechanical gearing or electric power (B24B47/16 takes precedence)
- B27C 1/04: Thicknessing machines
- B27C 1/14: Other details or accessories
- B24B: MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING (grinding of gear teeth B23F, of screw-threads B23G1/36; by electro-erosion B23H; abrasive or related blasting B24C; tools for grinding, buffing or sharpening B24D; polishing compositions C09G1/00; abrasives C09K3/14; electrolytic etching or polishing C25F3/00; grinding arrangements for use on assembled railway tracks E01B31/17); DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B27C: PLANING, DRILLING, MILLING, TURNING OR UNIVERSAL MACHINES FOR WOOD OR SIMILAR MATERIAL (machine tools in general B23; working wood using abrasive, e.g. sanding, devices B24; tools for these purposes B27G)

## Abstract

A planning and polishing machine includes a base, an intermediate base installed with a conveying device for laying a workpiece, and an upper base pivotally fixed with at least a planer and a grinding roller. A driving motor is installed below the conveying device, with its shaft engaged with a first driving wheel and a second driving wheel with different diameters. The first driving wheel and the blade are mounted by a first driving element, and the second driving wheel and the grinding roller are mounted by a second driving element. When the driving motor is turned on to draw the first driving element and the second driving element, the blade and the grinding roller are to be meanwhile driven to rotate in different rotating speeds, enabling the blade to powerfully plane the surface of a wood, achieving a high precision and efficiency of planning and polishing.

## Claims

### Claim 1

A planing and polishing machine comprising:
a base having an intermediate base and an upper base orderly installed above said intermediate base, said intermediate base and said upper base being spaced apart with a preset distance, a conveying device positioned on said intermediate base for laying a workpiece;
at least a blade transversely and pivotally positioned above said upper base and directed to an input said conveying device;
at least a grinding wheel transversely and pivotally installed above said upper base and positioned next to said blade above a output of said conveying device; and
a driving motor positioned below said conveying device and having its driving shaft engaged with a first driving wheel and a second driving wheel respectively, said first driving wheel and said second driving wheel possessing a different diameter, a first driving element mounted on said first driving wheel and said blade, a second driving element mounted on said second driving wheel and said grinding roller.

### Claim 2 (depends on 1)

The planing and polishing machine as claimed in claim 1, wherein said first driving element and said second driving element are respectively a belt.

### Claim 3 (depends on 1)

The planing and polishing machine as claimed in claim 1, wherein four corners between said intermediate base and said upper base are respectively fixed with an adjusting screw, and a transverse rod is axially linked between two adjacent ones of said adjusting screws at two sides of said intermediate base respectively, with an adjusting wheel fixed at one side of one of said transverse rods for adjusting a distance between said intermediate base and said upper base so as to further adjust a transportation distance between said blade and said grinding wheel and said conveying device.

### Claim 4 (depends on 1)

The planing and polishing machine as claimed in claim 1, wherein said blade is provided with a shaft pivotally connected at its one side to extend outside said upper base and engaged with a first rotating wheel that is mounted by a first driving element that also mounts on said first driving wheel, and said grinding wheel is provided with a shaft pivotally connected at its one side to extend outside said upper base beside said first rotating wheel and engaged with a second rotating wheel that is mounted by a second driving element that also mounts on said second driving wheel.

### Claim 5 (depends on 1)

The planing and polishing machine as claimed in claim 1, wherein a surface of said grinding wheel is closer to said conveying device than that of said blade.

### Claim 6 (depends on 1)

The planing and polishing machine as claimed in claim 1, wherein said first driving wheel has a larger diameter than said second driving wheel does.