Dust remover

Abstract

A dust remover includes a rotary brush which removes dust attached to a workpiece, a workpiece carrying section which carries the workpiece in a direction crossing the axial direction of the rotary brush, a brush rotating section which rotates the rotary brush around the axial center of the rotary brush, and a brush back-and-forth movement section which moves the rotary brush back and forth in the axial direction of the rotary brush. The dust remover also includes a motor which is a common driving source for both the brush rotating section and the brush back-and-forth movement section. The brush rotating section has a power transmitting section which transmits the power of the motor to the rotary brush as a rotation of the rotary brush, and the brush back-and-forth movement section has a power transmitting section which converts the power of the motor into a back-and-forth movement of the rotary brush to transmit the back-and-forth movement to the rotary brush.

1 . A dust remover comprising:
 a rotary brush which removes dust attached to a workpiece;   workpiece carrying means for carrying the workpiece in a direction crossing the axial direction of the rotary brush;   brush rotation means for rotating the rotary brush around the axial center of the rotary brush synchronously with the workpiece carrying means:   brush back-and-forth movement means for moving the rotary brush back and forth in the axial direction of the rotary synchronously with the workpiece carrying means; and   a motor which is a common driving source of the brush rotation means and the brush back-and-forth movement means,   wherein the brush rotation means has power transmission means for transmitting the power of the motor to the rotary brush as a rotation of the rotary brush, and   the brush back-and-forth movement means has power transmission means for converting the power of the motor into a back-and-forth movement of the rotary brush to transmit the back-and-forth movement to the rotary brush.   
   
   
       2 . The dust remover according to  claim 1 , wherein the power transmission means of the brush back-and-forth movement means has a cam mechanism,
 the cam mechanism has a cam follower, and   a cylindrical cam having a cam portion along which the cam follower is guided, the cylindrical cam being configured to rotate owing to the power of the motor,   the cylindrical cam is connected to the rotary brush so as to rotate and move back and forth integrally and coaxially with the rotary brush, and   the cam follower is fixed to an immobile position so as to allow the cylindrical cam to rotate when the motor rotates while converting the rotation of the cylindrical cam into the back-and-forth movement of the cylindrical cam.   
   
   
       3 . The dust remover according to  claim 2 , further comprising:
 a base which fixes the cam follower to the immobile position; and   a rotary shaft which connects the cylindrical cam to the rotary brush and which rotates and moves back and forth integrally with the cylindrical cam and the rotary brush,   wherein the rotary shaft is inserted through the cylindrical cam and fixed to the inside of the cylindrical cam, and a portion of the rotary shaft protruding externally from the cylindrical cam in the axial direction is rotatably and movably supported on the base.   
   
   
       4 . the dust remover according to  claim 3 , wherein the rotary shaft includes two rotary shafts arranged coaxially with each other, and
 the two rotary shafts are inserted through the cylindrical cam and fixed to the inside of the cylindrical cam.   
   
   
       5 . The dust remover according to  claim 2 , wherein the cam follower has a pin-like shape. 
   
   
       6 . The dust remover according to  claim 2 , wherein the cam portion is set so that the rotation number of the cylindrical cam is equal to the amplitude of the cylindrical cam is a back-and-forth direction. 
   
   
       7 . The dust remover according to  claim 2 , wherein the cylindrical cam is made of a plastic, and the cam follower is made of a metal. 
   
   
       8 . The dust remover according to  claim 2  wherein the cylindrical cam and the cam follower are made of a metal. 
   
   
       9 . The dust remover according to  claim 2 , wherein the rotary brush is constituted so as to perform a reciprocation in the back-and-forth direction every time the rotary brush rotates once. 
   
   
       10 . The dust remover according to  claim 2 , wherein the rotary brush has a first end into which the power for the rotation is input from the power transmission means of the brush rotation means, and a second end into which the power for the back-and-forth movement is input from the power transmission means of the brush back-and-forth movement means. 
   
   
       11 . The dust remover according to  claim 10 , wherein the first and second ends are positioned in the axial center of the rotary brush. 
   
   
       12 . The dust remover according to  claim 2 , wherein the motor has an output shaft coaxially with the rotary brush. 
   
   
       13 . The dust remover according to  claim 12 , wherein the output shaft is connected to the axial center of the rotary brush via the power transmission means of the brush rotation means. 
   
   
       14 . the dust remover according to  claim 12 , wherein the power transmission means of the brush rotation means has a main shaft connected to the output shaft, a spline boss formed integrally with the main shaft, a spline shaft fitted into the spline boss, and a coupling connecting the spline shaft to the rotary brush. 
   
   
       15 . The dust remover according to any  claim 2 , wherein the workpiece carrying means carries the workpiece in a direction crossing the axial direction of the rotary brush. 
   
   
       16 . The dust remover according to  claim 2 , wherein the rotary brush is constituted so as to come in contact with the workpiece. 
   
   
       17 . The dust remover according to  claim 2 , wherein the rotary brush has an implanted portion constituted of a conductive fiber, and the implanted portion comes in rotating contact with a surface of the workpiece. 
   
   
       18 . The dust remover according to  claim 2 , further comprising:
 a height adjustment mechanism constituted so as to adjust the height of the rotary brush in accordance with the thickness of the workpiece.   
   
   
       19 . The dust remover according to  claim 2 , wherein the workpiece is at least one of a printed wiring board, a liquid crystal glass substrate, a flexible substrate, a ceramic substrate, a plastic plate, a liquid crystal display panel a vacuum tray, a lens, an optical waveguide plate and a film. 
   
   
       20 . The dust remover according to  claim 2 , wherein the whole outer shape of the workpiece is a rectangular shape. 
   
   
       21 . The dust remover according to  claim 1 , wherein the power transmission means of the brush back-and-forth movement means has a cam mechanism,
 the cam mechanism has a cam follower, and   a cylindrical cam having a cam portion along which the cam follower is guided, the cylindrical cam being configured to rotate owing to the power of the motor,   the axial direction of the cylindrical cam is provided in parallel with that of the rotary brush, and   the cam follower is connected to the rotary blush so as to move back and forth integrally with the rotary brush when the motor rotates.