Claims
- 1. Sanding apparatus comprising: spindle drive means, means for rotating said spindle drive means;
- a plurality of spindles each extending radially from said spindle drive means, a sanding roller on each said spindle, the spindle drive means being suspended at one end of two first arms, each of the first arms at their opposite ends connected together by a first shaft, two second arms, a second axle mounted to one end of the two second arms, the second axle supporting a first wheel pair, a yoke at one end thereof supporting a second wheel pair, said yoke at an opposite end connected to second axle the second arms at their opposite ends being linked to the first arms;
- means for rotating each of said spindles with the sanding roller thereon;
- means for conveying the articles to be sanded beneath the sanding rollers along a path in a first direction; and means for moving the spindle drive means and the rotating spindles thereon in a circular direction about said path.
- 2. Sanding apparatus according to claim 1 further comprising carriage means for traveling a path in said circular direction, said carriage means carrying said spindle drive means, actuator means for moving the carriage means comprising a motor, an arm over the center of the carriage's path of movement, said arm connected at one end of the motor, a rotating coupling secured on the carriage, a second end of the arm being in pivoting engagement with the coupling, wherein rotation of the arm by the motor around an axis which is parallel with the axis of rotation of the spindle drive means, effects a circular movement of the carriage.
- 3. Sanding apparatus according to claim 1 wherein an angle between the two sets of arms can be varied for the raising and lowering of the spindle drive means.
- 4. Sanding apparatus according to claim 1 wherein a distance between the linkage of the second arms to the first arms and the spindle drive means on the first arms corresponds to a distance between the linkage and the second axle on the second arms.
- 5. The apparatus of claim 1 further comprising means to vertically displace the spindle drive means during sanding.
- 6. The apparatus of claim 5 wherein the means to vertically displace the spindle drive means during sanding comprises a threaded rod having a first end threadably engaged to the first axle and a second end rotatably engaged to the yoke.
- 7. The sanding apparatus of claim 6 further comprising a motor for rotating the threaded rod.
- 8. The sanding apparatus of claim 5 wherein the means for vertically displacing the spindle drive means comprise a spring located between the yoke and the first axle.
- 9. The sanding apparatus of claim 8 further comprising a motor to adjust a tension of the spring.
- 10. Sanding apparatus comprising:
- spindle drive means, means for rotating said spindle drive means;
- a plurality of spindles each extending radially from said spindle drive means, a sanding roller on each said spindle;
- means for rotating each of said spindles with the sanding roller thereon;
- means for conveying the articles to be sanded beneath the sanding rollers along a path in a first direction; and means for moving the spindle drive means and the rotating spindles thereon in a circular direction about said path, the spindle drive means being suspended at one end of two first arm means, a the spindle drive means housing yoke which supports first wheel means, at one end thereof, said yoke at an opposite end connected to second wheel means said second wheel means mounted to one end of second arm means, the second arm means supporting the first arm means, second arm means at their opposite ends being linked to the first arm means.
- 11. The sanding apparatus according to claim 10 wherein a distance between the linkage of the second arm means to the first arm means and the spindle drive means on the first arm means corresponds to the distance between the linkage and the second wheel means on the second arm means.
- 12. A method of sanding comprising:
- providing a plurality of sanding rollers each located on a respective spindle having a longitudinal axis extending radially outward from a spindle drive, the spindle drive being suspended at one end of two first arms, each of the first arms at their opposite ends connected together by a first shaft, two second arms, a second axle mounted to one end of the two second arms, the second axle supporting a first wheel pair, a yoke at one end thereof supporting a second wheel said yoke at an opposite end connected to second axle pair, the second arms at their opposite ends being linked to the first arms;
- rotating said spindle drive with said spindles thereon;
- rotating said spindle drive with said spindle drive thereon;
- driving each of said spindles independently of said spindle drive and rotating the sanding roller thereon as the spindle drive is rotated;
- conveying articles to be sanded along a path in a first direction beneath said driven sanding rollers to be contacted thereby; and
- moving said rotating spindle drive carrying the driven spindles with the rotating sanding rollers thereon in a circular direction over said path as the articles are moving in the first direction therebeneath;
- uniformly and gently sanding the articles by contacting the articles with the driven sanding rollers which attack the articles from many different sanding directions as the articles pass beneath the moving rotating spindle drive carrying the rotating spindles.
- 13. The method of claim 12 further comprising moving said rotating spindle drive carrying the driven spindles with the rotating sanding rollers thereon in an upward or downward direction while maintaining the spindles in the same plane.
- 14. Sanding apparatus comprising:
- spindle drive means, means for rotating said spindle drive means;
- a plurality of spindles each extending radially from said spindle drive means, a sanding roller on each said spindle;
- means for rotating each of said spindles with the sanding roller thereon;
- means for conveying the articles to be sanded beneath the sanding rollers along a path in a first direction; and
- means for moving the spindle drive means and the rotating spindles thereon in a circular direction about said path; and
- carriage means for traveling a path in said circular direction, said carriage means carrying said spindle drive means, actuator means for moving the carriage means comprising a motor, an arm over the center of the carriage's path of movement, said arm connected at one end of the motor, a rotating coupling secured on the carriage, a second end of the arm being in pivoting engagement with the coupling, wherein rotation of the arm by the motor around an axis which is parallel with the axis of rotation of the spindle drive means, effects a circular movement of the carriage.
- 15. The apparatus of claim 14 further comprising means to vertically displace the spindle drive means during sanding.
- 16. The apparatus of claim 15 wherein the spindle drive means is suspended at one end of first arm means, which are connected at an opposite end thereof to first shaft means, second arm means, second axle means mounted to one end of the second arm means, the second axle means supporting first wheel means, said yoke at an opposite end connected to second axle a yoke at one end thereof supporting second wheel means, an opposite end of the second arm means being linked to the first arm means, and wherein the means to vertically displace the spindle drive means during sanding comprises a threaded rod having a first end threadably engaged to the first axle means and a second end rotably engaged to the yoke.
- 17. The sanding apparatus of claim 16 further comprising a motor for rotating the threaded rod.
- 18. The sanding apparatus of claim 15 wherein the means for vertically displacing the spindle drive means comprise a spring located between the yoke and the first axle means.
- 19. The sanding apparatus of claim 18 further comprising a motor to adjust a tension of the spring.
- 20. A method of sanding comprising:
- providing a plurality of sanding rollers each located on a respective spindle having a longitudinal axis extending radially outward from a spindle drive;
- radially outward from a spindle drive;
- rotating said spindle drive with said spindle drive thereon;
- drive and rotating the sanding roller thereon as the spindle drive is rotated;
- conveying articles to be sanded along a path in a first direction beneath said driven sanding rollers to be contacted thereby;
- providing carriage means for traveling a path in said circular direction, said carriage means carrying said spindle drive, actuator means for moving the carriage means comprising a motor, an arm over a center of the carriage's path of movement, said arm connected at one end of the motor, a rotating coupling secured on the carriage, a second end of the arm being in pivoting engagement with the coupling, wherein rotation of the arm by the motor around an axis which is parallel with the axis of rotation of the spindle drive means, effects a circular movement of the carriage;
- moving said rotating spindle drive carrying the driven spindles with the rotating sanding rollers thereon in a circular direction over said path as the articles are moving in the first direction therebeneath; and
- uniformly and gently sanding the articles by contacting the articles with the driven sanding rollers which attack the articles from many different sanding directions as the articles pass beneath the moving rotating spindle drive carrying the rotating spindles.
- 21. The method of claim 20 further comprising moving said rotating spindle drive carrying the drive spindles with the rotating sanding rollers thereon in an upward or downward direction while maintaining the spindles in the same plane.
Priority Claims (1)
Number |
Date |
Country |
Kind |
PCT/DK90/01271 |
May 1990 |
WOX |
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Parent Case Info
This application is a continuation in part of application Ser. No. 08/154,921, filed Nov. 18, 1993, pending which was a divisional of application Ser. No. 07/950,416, filed Sep. 23, 1992, now U.S. Pat. No. 5,291,689, which was a division of application Ser. No. 07/699,181 filed on May 13, 1991, now abandoned. This application is related to U.S. Pat. No. 5,274,962, based on application Ser. No. 951,041 which was a continuation of application Ser. No. 07/699,181, abandoned described above.
US Referenced Citations (3)
Divisions (2)
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Number |
Date |
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Parent |
950416 |
Sep 1992 |
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Parent |
699181 |
May 1991 |
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Continuation in Parts (1)
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Number |
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154921 |
Nov 1993 |
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