Conveyor equipment for surface treatment of workpieces

An arrangement for surface treating workpieces, said arrangement comprising:

• a rotary conveyor rotatable about a primary rotation axis;
• means including a plurality of holders angularly spaced about said primary rotation axis on said rotary conveyor and each for holding a respective workpiece, each of said holders being rotatable on said rotary conveyor about a respective secondary rotation axis extending generally radially of said primary rotation axis, each holder including gripper means closable and openable for grasping and releasing a workpiece and including
• a support,
• a gripper part displaceable generally radially of the respective secondary axis toward and away from the respective support, and
• a spring urging the respective gripper part toward the respective support;
• means for displacing the gripper part of a holder away from the respective support for unclamping a workpiece held thereby in a predetermined angular position of said rotary conveyor;
• a line conveyor having means for displacing workpieces in a straight line tangentially past said rotary conveyor and including vertically displaceable walking beams engageable with said gripper parts and constituting part of said means for displacing said gripping part;
• means for rotating said rotary conveyor about said primary axis and thereby orbiting said holders and workpieces clamped thereby about said primary rotation axis;
• and
• means for rotating each of said holders about the respective secondary axis during rotation of said rotary conveyor about said primary axis.

An arrangement for surface treating workpieces, said arrangement comprising:

• a rotary conveyor rotatable about a primary rotation axis;
• means including a plurality of holders angularly spaced about said primary rotation axis on said rotary conveyor and each for holding a respective workpiece, each of said holders being rotatable on said rotary conveyor about a respective secondary rotation axis extending generally radially of said primary rotation axis, each holder including gripper means closable and openable for grasping and releasing a workpiece and including
• a support,
• a gripper part displaceable generally radially of the respective secondary axis toward and away from the respective support, and
• a biasing means for urging the respective gripper part toward the respective support;
• means for displacing the gripper part of a holder away from the respective support for unclamping a workpiece held thereby in a predetermined angular position of said rotary conveyor;
• conveyor means for displacing workpieces past said rotary conveyor, engageable with said gripper parts, and constituting part of said means for displacing said gripper part;
• means for rotating said rotary conveyor about said primary axis and thereby orbiting said holders and workpieces clamped thereby about said primary rotation axis;
• and
• means for rotating each of said holders about the respective secondary axis during rotation of said rotary conveyor about said primary axis.

An arrangement for surface treating workpieces, said arrangement comprising:

• a rotary conveyor rotatable about a primary rotation axis;
• conveyor means extending tangentially past said rotary conveyor;
• means including a plurality of holders angularly spaced about said primary rotation axis on said rotary conveyor and each for holding a respective workpiece, each of said holders being rotatable on said rotary conveyor about a respective secondary rotation axis extending generally radially of said primary rotation axis, each holder including gripper means closable and openable for grasping and releasing a workpiece and including
• a support,
• a frame having at least one leg engageable with said conveyor means for displacement of said frame away from the respective support and constituting a gripper part displaceable generally radially of the respective secondary axis toward and away from the respective support, and
• biasing means for urging the respective gripper part toward the respective support;
• means for rotating said rotary conveyor about said primary axis and thereby orbiting said holders and workpieces clamped thereby about said primary rotation axis;
• and
• means for rotating each of said holders about the respective secondary axis during rotation of said rotary conveyor about said primary rotation axis.