JP4896674B2 - 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. In order to suppress damage to the roll, it is necessary to make the force pressing the adhesive rubber roll against the object minute.

  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 capable of pressing an adhesive roll against an object with a smaller force than before.

An end face cleaning device according to the present invention includes an adhesive roll that extends perpendicular to a plate-like object and adsorbs dust adhering to the end face of the object, and a roll that rotatably supports the adhesive roll. A parallel plate having a base plate and a link rotatably connected to the roll base plate, allowing the roll base plate to be moved while maintaining parallelism with respect to the end surface of the object. A link mechanism, an adhesive tape roll that adsorbs dust adhering to the adhesive roll and keeps the surface of the adhesive roll clean, and the adhesive tape roll is rotatably attached and is in contact with and away from the adhesive roll. A tape support plate that is movably provided in a moving direction, and an air that is fixed to the roll base plate and drives the adhesive tape roll in a direction to contact or separate from the adhesive roll. And having a cylinder, a cleaning apparatus and a link drive unit that moves relative to the object the adhesive roll by driving the roll base plate.

  With this configuration, the end face cleaning device of the present invention can reduce the loss until the driving force generated by the link driving unit is transmitted to the adhesive roll by the parallel link mechanism. Can move the adhesive roll. Therefore, the end face cleaning device of the present invention can press the adhesive roll against the object with a smaller force than before.

Moreover, it is preferable that the end surface washing | cleaning apparatus of this invention is equipped with the said some adhesive roll arranged so that it might become parallel with respect to the said end surface. Further, in the end face cleaning device of the present invention, a plurality of the cleaning devices are provided, and a plurality of the cleaning devices are disposed at predetermined positions on both sides of a transport path in a transport device that transports the object, Among the objects parallel to the conveying direction in the conveying path, the object that cleans the end surface along the conveying direction and the object that is movable along the direction orthogonal to the conveying direction are provided. It is preferable to have an end surface that is orthogonal to the direction .

  With this configuration, the end face cleaning device of the present invention can bring a plurality of adhesive rolls into contact with the end face of the object with a parallel link mechanism at an equal pressure, so that only one adhesive rubber roll is supported by the parallel link mechanism. Compared to the configuration, the cleaning ability can be improved by a plurality of adhesive rolls.

  ADVANTAGE OF THE INVENTION According to this invention, the end surface washing | cleaning apparatus which can press an adhesive roll against a target object with force smaller than before 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 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 63 c and 63 d, a metal fitting 65 protruding from the roll base plate 53, an air cylinder 66 as a link driving unit fixed to the link base plate 64 and a rod fixed to the metal fitting 65, and a figure formed on the metal fitting 65. A bolt 68a screwed into a screw hole not shown, a nut 68b for fixing the bolt 68a to the metal fitting 65, a phosphorus And a stopper 69 fixed to the base plate 64. 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 roll base plate 53 constitutes a link that supports the adhesive rubber rolls 51a and 51b.

  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 face cleaning device 10 can greatly reduce the loss until the driving force generated by the air cylinder 66 is transmitted to the adhesive rubber rolls 51 a and 51 b by the parallel link mechanism 67. Therefore, the adhesive rubber rolls 51a and 51b can be moved with a smaller force than in the past. Therefore, the end face cleaning apparatus 10 can press the adhesive rubber rolls 51a and 51b against the printed circuit board 90 with a force smaller than the conventional one.

  Moreover, since the end surface cleaning apparatus 10 can press the adhesive rubber rolls 51a and 51b against the printed circuit board 90 with a force smaller than the conventional one, damage to the adhesive rubber rolls 51a and 51b or the printed circuit board 90 can be prevented.

  Further, since the end face cleaning device 10 can press the adhesive rubber rolls 51a and 51b against the printed circuit board 90 with a force smaller than that of the prior art, the amount of dust generated by the friction between the adhesive rubber rolls 51a and 51b and the printed circuit board 90 can be reduced. It can be reduced than before. Therefore, the end surface cleaning apparatus 10 can improve the cleaning performance as compared with the conventional one, and can improve the yield of the printed circuit board 90.

  Further, since the end face cleaning apparatus 10 can bring the adhesive rubber rolls 51a and 51b into contact with the end face 90a of the printed circuit board 90 by the parallel link mechanism 67 with an equal pressure, the roll base plate 53 has only one adhesive rubber roll. Compared to the supported configuration, the cleaning capability can be improved by the adhesive rubber rolls 51a and 51b.

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)
53 Roll base plate (link supporting adhesive roll)
66 Air cylinder (link drive)
67 Parallel link mechanism 90 Printed circuit board (plate-like object)
90a, 90b, 90c, 90d End face

Claims (3)

An adhesive roll that adsorbs dust adhering to the end face of the object that is extended perpendicular to the plate-shaped object;
A roll base plate that rotatably supports the adhesive roll, and a link that is rotatably connected to the roll base plate, the parallelism of the roll base plate with respect to the end surface of the object is maintained. A parallel link mechanism that can be moved in a state ;
An adhesive tape roll that adsorbs dust adhering to the adhesive roll and keeps the surface of the adhesive roll clean;
The adhesive tape roll is attached rotatably, and a tape support plate provided so as to be movable in the direction of contacting and separating from the adhesive roll;
An air cylinder that is fixed to the roll base plate and drives the pressure-sensitive adhesive tape roll in the direction of contacting and separating from the pressure-sensitive adhesive roll;
A link driving unit that moves the adhesive roll relative to the object by driving the roll base plate ;
Edge cleaning apparatus characterized by having a cleaning device comprising a.   The end face cleaning apparatus according to claim 1, comprising a plurality of the adhesive rolls arranged to be parallel to the end face. A plurality of the cleaning devices are provided, and the plurality of cleaning devices include:
A pair disposed at predetermined positions on both sides of a conveyance path in a conveyance device that conveys the object, and cleaning an end surface along the conveyance direction among the objects parallel to the conveyance direction in the conveyance path;
It is provided so as to be movable along a direction orthogonal to the conveyance direction, and cleans an end surface orthogonal to the conveyance direction among the objects,
The end face cleaning apparatus according to claim 1, wherein: