JP4884926B2 - Edge cleaning device - Google Patents

Description

  The present invention relates to an end face cleaning apparatus for cleaning end faces of plate-like objects such as printed circuit boards incorporating electronic components, resin thin plate products such as liquid crystal panels, and film material products as raw materials thereof.

As a conventional end face cleaning device, an adhesive roll that extends perpendicularly to a plate-like object and adsorbs dust adhering to the end surface of the object, and an adhesive tape that transfers the dust adhering to the adhesive rubber roll An end face cleaning device having a roll is known (for example, see Patent Document 1).
JP 2001-205210 A

  However, in the conventional end face cleaning apparatus, for example, when the adhesive rubber roll is brought into contact with the end face of a very thin object such as 0.4 mm to 2 mm, the pressure applied from the object to the adhesive rubber roll increases. There is a problem that the roll is damaged.

  The present invention has been made to solve the conventional problems, and an object of the present invention is to provide an end face cleaning device that can extend the life of an adhesive roll.

The end surface cleaning device of the present invention is an end surface cleaning device that removes dust adhering to the end surface of a plate-like object, and is provided rotatably around an extending direction orthogonal to the object, an adhesive roll for adsorbing dust attached to its end face contacts the end face of the object, the extending direction position changing unit for changing the contact position between the object in the extending direction of the adhesive roll , have a, the extension direction position changing unit is driven by a computer controlled, it is to change the contact position whenever the cleaning of one of the object is completed, characterized in that.

  With this configuration, the end face cleaning device of the present invention can change the contact position of the adhesive roll with the end face of the object in the extending direction of the adhesive roll, so that the life of the adhesive roll can be extended as compared with the prior art. .

Further, the extending direction position changing unit of the end face cleaning device of the present invention includes a motor driven by the computer, and the driving force of the motor is transmitted to thereby extend the extending direction of the adhesive roll. It is preferable that the contact position with the object in is changed .

  ADVANTAGE OF THE INVENTION According to this invention, the end surface washing | cleaning apparatus which can extend the lifetime of an adhesive roll conventionally can be provided.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

  First, the configuration of the end face cleaning apparatus according to the present embodiment will be described.

  As shown in FIG. 1, the end face cleaning device 10 according to the present embodiment has a transport device 20 that transports a printed circuit board 90 as a plate-like object, and the same transport direction as the transport device 20 of the printed circuit board 90. A cleaning device 31 for cleaning the end surface 90a extending in the direction, a cleaning device 32 for cleaning the end surface 90b of the printed circuit board 90 opposite to the end surface 90a, and a direction orthogonal to the transport direction of the transport device 20 in the printed circuit board 90. A cleaning device 33 that cleans the end surface 90c extending to the end of the printed circuit board 90, and a cleaning device 34 that cleans the end surface 90d of the printed circuit board 90 that faces the end surface 90c.

  As shown in FIGS. 2 to 4, the cleaning device 31 includes a unit base 40, a cleaning unit 50 that cleans the end surface 90 a of the printed circuit board 90, and the cleaning unit 50 in the horizontal direction in FIG. 4 with respect to the unit base 40. A horizontal driving unit 60 to be moved and a vertical driving unit 70 as an extending direction position changing unit to move the cleaning unit 50 in the vertical direction in FIG. 4 with respect to the unit base 40 are provided.

  The cleaning unit 50 extends perpendicularly to the printed circuit board 90 and is used as adhesive rubber rolls 51a and 51b as adhesive rolls that adsorb dust adhering to the end surface 90a of the printed circuit board 90, and adhesive rubber rolls 51a and 51b. Adhesive tape roll 52 that keeps the surfaces of the adhesive rubber rolls 51a and 51b clean by adsorbing dust adhering to the two, and two adhesive rubbers arranged in parallel to the end face 90a of the printed circuit board 90 A roll base plate 53 that rotatably supports the rolls 51a and 51b via a bearing (not shown), a tape support plate 54 that rotatably supports the adhesive tape roll 52 via a bearing (not shown), and a tape A slider 55 that supports the support plate 54 movably in the left-right direction in FIG. 4 with respect to the roll base plate 53. An air cylinder 56 that is fixed to the roll base plate 53 and presses the tape support plate 54 from the opposite side of the adhesive rubber rolls 51a and 51b to the tape support plate 54, and an adhesive rubber that is fixed to the roll base plate 53. A motor 57 for generating a driving force for rotating the rolls 51a and 51b, pulleys 58a and 58b fixed to the shafts of the adhesive rubber rolls 51a and 51b, a pulley 58c fixed to the output shaft of the motor 57, and pulleys 58a to 58a. And a belt 59 hung on 58c.

  The horizontal driving unit 60 has a link 61 having a link pin 61a at one end and a link pin 61b at the other end, a link pin 62a at one end, and a link pin 62b at the other end, and is parallel to the link 61. A link 62 having the same length, a link base plate 64 that rotatably supports the link pins 61a and 62a via ball bearings 63a and 63b, and a ball that rotatably supports the roll base plate 53 on the link pins 61b and 62b. Bearings 63c and 63d, a metal fitting 65 protruding from the roll base plate 53, an air cylinder 66 fixed to the link base plate 64 and a rod fixed to the metal fitting 65, and a screw hole (not shown) formed in the metal fitting 65 Fastened to the link base plate 64, the bolt 68a screwed to the nut, the nut 68b for fixing the bolt 68a to the metal fitting 65, And a stopper 69. The horizontal drive unit 60 may include a compression spring instead of the air cylinder 66.

  Here, the roll base plate 53, the links 61 and 62, the ball bearings 63a to 63d, and the link base plate 64 constitute a parallel link mechanism 67.

  The vertical drive unit 70 includes a ball slider 71 that supports the link base plate 64 so as to be movable in the vertical direction in FIG. 4 with respect to the unit base 40, a trapezoid nut 72 fixed to the link base plate 64, and a ball bearing 73a. A trapezoidal screw 73 that is rotatably supported by the unit base 40 and meshes with the trapezoidal nut 72, a motor 74 that is fixed to the unit base 40 and generates a driving force that rotates the trapezoidal screw 73, and is fixed to the trapezoidal screw 73. The timing pulley 75a, the timing pulley 75b fixed to the output shaft of the motor 74, and the timing belt 76 hung on the timing pulleys 75a and 75b.

  In addition, since the structure of the washing | cleaning apparatuses 32-34 (refer FIG. 1) is the same as that of the structure of the washing | cleaning apparatus 31, detailed description is abbreviate | omitted. Moreover, below, the structure of the washing | cleaning apparatuses 32-34 is demonstrated using the same code | symbol as the same structure among the structures of the washing | cleaning apparatus 31. FIG.

  Next, the operation of the end surface cleaning apparatus 10 will be described.

  As shown in FIG. 1, when the printed circuit board 90 is moved leftward in FIG. 1 by the conveying device 20, the cleaning devices 31 and 32 are attached to the end faces 90 a and 90 b of the printed circuit board 90 through the adhesive rubber rolls 51 a and 51 b. To adsorb dust adhering to the end faces 90a and 90b of the printed circuit board 90.

  When the printed circuit board 90 is transported to the position shown in FIG. 1 by the transport device 20, the cleaning devices 33 and 34 are moved upward in FIG. The adhesive rubber rolls 51a and 51b are brought into contact with the end faces 90c and 90d, and dust adhering to the end faces 90c and 90d of the printed circuit board 90 is adsorbed.

  In the following, the cleaning device 31 will be described, but the same applies to the cleaning devices 32 to 34.

  The cleaning device 31 rotates the output shaft of the motor 57 counterclockwise in FIG. 2 when adhering dust adhering to the end surface 90a of the printed circuit board 90. When the output shaft of the motor 57 is rotated counterclockwise in FIG. 2, the adhesive rubber rolls 51 a and 51 b are transmitted with the driving force of the motor 57 via the pulleys 58 a to 58 c and the belt 59 to counterclockwise in FIG. 2. The dust on the end surface 90a of the printed circuit board 90 that rotates around and moves to the left in FIG. Since the adhesive tape roll 52 is rotatably supported by the tape support plate 54 pushed to the adhesive rubber rolls 51a and 51b by the air cylinder 56, the adhesive tape roll 52 is in contact with the adhesive rubber rolls 51a and 51b. When 51a and 51b rotate counterclockwise in FIG. 2, the adhesive rubber rolls 51a and 51b rotate clockwise in FIG. Therefore, the adhesive tape roll 52 adsorbs dust adhering to the adhesive rubber rolls 51a and 51b and keeps the surfaces of the adhesive rubber rolls 51a and 51b always clean.

  Further, the cleaning device 31 adjusts the protruding amount of the rod of the air cylinder 66 when adsorbing dust adhering to the end surface 90 a of the printed circuit board 90. When the protruding amount of the rod of the air cylinder 66 is changed, the roll base plate 53 to which the rod of the air cylinder 66 is fixed via the metal fitting 65 is moved to the link base plate 64 in FIG. The horizontal position is changed. That is, the positions of the adhesive rubber rolls 51a and 51b supported by the roll base plate 53 in the horizontal direction in FIG. 4 with respect to the unit base 40 to which the link base plate 64 is fixed in the horizontal direction in FIG. Therefore, the cleaning device 31 controls the air pressure of the very small air cylinder 66 so that the force for pressing the adhesive rubber rolls 51a and 51b against the printed circuit board 90 is as small as about 0 to 10N in units of several tens of mN, for example. Can be controlled by range.

  The rod of the air cylinder 66 can be protruded until the bolt 68a fixed to the metal fitting 65 comes into contact with the stopper 69 fixed to the link base plate 64. Therefore, the stroke of the air cylinder 66 can be adjusted by adjusting the distance in the left-right direction in FIG. 4 between the bolt 68a and the stopper 69 with the bolt 68a and the nut 68b.

  In the cleaning device 31, the motor 74 is driven by a computer (not shown) mounted on the end surface cleaning device 10 every time one printed circuit board 90 is cleaned. When the motor 74 is driven, the driving force of the motor 74 is transmitted to the trapezoidal screw 73 via the timing pulleys 75 a and 75 b and the timing belt 76, and rotates with respect to the unit base 40. When the trapezoidal screw 73 rotates with respect to the unit base 40, the trapezoidal nut 72 engaged with the trapezoidal screw 73 moves in the vertical direction shown in FIG. 5 with respect to the unit base 40 as shown in FIGS. 5 and 6. When the trapezoidal nut 72 moves in the vertical direction shown in FIG. 5 with respect to the unit base 40, the link base plate 64 to which the trapezoidal nut 72 is fixed moves in the vertical direction in FIG. 5 with respect to the unit base 40 by the ball slider 71. Since it is supported as possible, it moves in the vertical direction shown in FIG. That is, the adhesive rubber rolls 51a and 51b supported by the link base plate 64 via the roll base plate 53 and the horizontal driving unit 60 move in the vertical direction shown in FIG. The position of contact with the end surface 90a of this is changed.

  As described above, the end surface cleaning device 10 includes the end surface 90a of the printed circuit board 90 in the adhesive rubber rolls 51a and 51b in the extending direction of the adhesive rubber rolls 51a and 51b every time the cleaning of one printed circuit board 90 is completed. Since the contact position can be changed, the lifetime of the adhesive rubber rolls 51a and 51b can be extended as compared with the conventional case. Therefore, the end surface cleaning apparatus 10 can extend the replacement period of the adhesive rubber rolls 51a and 51b as compared with the conventional one, and as a result, the work efficiency of cleaning the end surfaces 90a to 90d of the printed circuit board 90 can be improved as compared with the conventional. .

  Further, since the end surface cleaning apparatus 10 changes the contact position between the adhesive rubber rolls 51a and 51b and the end surface 90a of the printed circuit board 90 every time one printed circuit board 90 is cleaned, the adhesive rubber roll 51a is changed. , 51b can be extended from the conventional maintenance cycle. Therefore, the end face cleaning apparatus 10 can improve the work efficiency of cleaning the end faces 90a to 90d of the printed circuit board 90 as compared with the conventional case.

  Further, the end face cleaning apparatus 10 changes the contact position between the adhesive rubber rolls 51a and 51b and the end face 90a of the printed circuit board 90 every time one printed circuit board 90 is cleaned. The adsorbing position of dust on the adhesive tape roll 52 in the extending direction is also changed. Therefore, the end surface cleaning apparatus 10 can extend the replacement period of the adhesive tape roll 52 as compared with the conventional one, and as a result, the work efficiency of cleaning the end surfaces 90a to 90d of the printed circuit board 90 can be improved as compared with the conventional one.

  The end surface cleaning apparatus 10 changes the contact position between the adhesive rubber rolls 51a and 51b and the end surface 90a of the printed circuit board 90 every time one printed circuit board 90 is cleaned. The contact position between the adhesive rubber rolls 51a and 51b and the end surface 90a of the printed circuit board 90 may be changed at a timing other than the timing at which the cleaning of 90 is finished.

  Further, the end face cleaning apparatus 10 automatically changes the contact position between the adhesive rubber rolls 51 a and 51 b and the end face 90 a of the printed circuit board 90, but the end face of the adhesive rubber rolls 51 a and 51 b and the printed circuit board 90 is changed. The contact position with 90a may be changed manually.

The top view of the end face cleaning device concerning one embodiment of the present invention. Top view of the cleaning apparatus of the end surface cleaning apparatus shown in FIG. It is a front view of the washing | cleaning apparatus shown in FIG. 2, Comprising: The figure in the state shown in FIG. FIG. 3 is a side view of the cleaning apparatus shown in FIG. 2, and shows the state shown in FIG. 2. It is a front view of the washing | cleaning apparatus shown in FIG. 2, Comprising: The figure in the state different from the state shown in FIG. FIG. 6 is a side view of the cleaning apparatus shown in FIG. 2, and shows the state shown in FIG. 5.

Explanation of symbols

10 End face cleaning devices 51a, 51b Adhesive rubber roll (adhesive roll)
70 Vertical drive part (extension direction position change part)
90 Printed circuit board (plate-like object)
90a-90d end face

Claims (2)

An end face cleaning device for removing dust adhering to an end face of a plate-like object ,
An adhesive roll that is rotatably provided with an extending direction orthogonal to the object as an axis, and that contacts the end surface of the object and adsorbs dust adhering to the end surface;
The extending direction position changing unit for changing the contact position between the object in the extending direction of the adhesive roll,
Have a, the extension direction position changing unit is driven by a computer controlled, it is to change the contact position whenever the cleaning of one of the object is completed,
An end face cleaning device. The extending direction position changing unit includes a motor driven by the control by the computer, and the contact position of the adhesive roll with the object in the extending direction is transmitted by transmitting the driving force of the motor. To be changed,
An end face cleaning device.