JP2005152717A - Dust removing apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a dust removing apparatus capable of removing dust stuck to side faces of a work. <P>SOLUTION: This dust removing apparatus has a side cleaning unit 5 exclusively removing dust stuck to side faces of a work. Multiple pieces of the side cleaning units 5 are installed to a rotatable rotating unit 4, to allow easy replacement. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a removing device that removes dust attached to a plate-like workpiece such as a circuit board, and more particularly to a dust removing device that can also remove dust attached to a side surface of a workpiece.

  For example, precision boards such as printed circuit boards and liquid crystal boards are generated when cutting dust (liquid crystal panels, etc.) attached to the workpiece in order to increase the yield before performing precision work such as pattern printing and assembly. It is necessary to remove as much as possible. In view of this, a dust removing device that exclusively removes dust adhering to this type of plate-like workpiece has been provided.

  In this type of dust removing device, for example, as shown in Patent Document 1, a cleaning roller such as a rotating brush or an adhesive roller is provided in a passage region of a workpiece conveyed on a conveyance conveyor, and the workpiece passes the cleaning roller. Thus, dust on the workpiece is removed by the cleaning roller.

  However, most of the conventional cleaning rollers are provided only in the part that cleans the main area (upper surface and bottom surface) of the work, and none have a cleaning unit that cleans the edges and side surfaces of the work. It was.

  Today, a relatively thick workpiece such as a liquid crystal panel is often cleaned. Therefore, even a small amount of dust adhering to the side surface is desired to be removed in order to increase the yield. .

JP-A-6-296945

  Accordingly, the present invention has been made to solve the above-described problems, and an object of the present invention is to provide a dust removing device that can also remove dust attached to the side surface of a workpiece.

  In order to achieve the above-described object, the present invention has several features described below. First, according to a first aspect of the present invention, there is provided a dust removal apparatus that includes a cleaning unit that removes dust attached to a plate-like workpiece, and that removes dust attached to the workpiece by a cleaning roller provided in the cleaning unit. It is characterized by having a side cleaning unit that exclusively removes dust adhering to the side.

  According to a second aspect of the present invention, the side surface cleaning unit includes a side surface cleaning roller attached so as to be contactable along the side surface of the workpiece, a unit base that supports the side surface cleaning roller, and the side surface cleaning roller that is always attached to the workpiece. And a pressing means for pressing toward the side surface.

  According to a third aspect of the present invention, the axial length of the side surface cleaning roller is set to be longer than at least the plate thickness of the workpiece, and the side surface of the side surface cleaning roller has a center of the axial length of the workpiece. It is characterized in that it is installed in a state shifted by a predetermined position.

  According to a fourth aspect of the present invention, at least two side surface cleaning rollers are provided on the unit base along the conveying direction of the workpiece.

  According to a fifth aspect of the present invention, the apparatus further includes a rotation unit having a horizontal rotation shaft parallel to the workpiece conveyance surface, and the rotation unit includes a plurality of the side surface cleaning units.

  According to a sixth aspect of the present invention, the rotary unit is provided with four side surface cleaning units at 90 ° intervals around the horizontal rotary shaft.

  According to the first aspect of the present invention, the dust attached to the side surface and the edge of the workpiece can be reliably removed by providing the side surface cleaning unit for exclusive removal of the dust attached to the side surface of the workpiece. it can.

  According to the second aspect of the present invention, since the side cleaning roller always contacts the side surface of the workpiece reliably, the side cleaning roller moves following the shape of the side surface of the workpiece, so that the workpiece has a complicated shape. However, it is possible to remove dust reliably.

  According to the third aspect of the present invention, since the work comes into contact with about half of the side surface cleaning roller, when the side surface cleaning roller becomes dirty, the side surface cleaning roller is inverted by 180 ° to A workpiece can be brought into contact with an unused portion, and two cleaned surfaces can be obtained with one side cleaning roller.

  According to the invention described in claim 4, by providing two side surface cleaning rollers in the transport direction, dust attached to the workpiece can be more reliably removed.

  According to the fifth aspect of the present invention, when the side cleaning roller in use is dirty and the replacement time is approaching, the unused side cleaning roller appears in the passage area of the workpiece only by rotating the rotating unit. The used roller can be maintained without interrupting the cleaning operation.

  According to the invention described in claim 6, by providing the four side surface cleaning units, not only the maintainability is further improved, but also the specifications of the side surface cleaning unit can be changed according to the type of workpiece. Different kinds of workpieces can be continuously cleaned by the dust removing device of the table.

  Next, the dust removing apparatus of the present invention will be described with reference to the drawings. FIG. 1 is a perspective view of a dust removing apparatus according to an embodiment of the present invention, and FIG. 2 is a cross-sectional view schematically showing an internal structure thereof.

  The dust removing apparatus 1 includes a side surface cleaning unit 1a that mainly cleans the workpiece side surface W1, and a normal cleaning unit 1b that mainly cleans the workpiece plane W2 on the discharge port side (downstream side) of the side surface cleaning unit 1a. I have.

  In the present invention, the workpiece side surface W1 refers to the end surface of the workpiece W along the conveyance direction of the workpiece W, and the workpiece plane W2 refers to the upper surface and the bottom surface of the workpiece W. In this embodiment, the side surface cleaning unit 1a is provided on the upstream side of the flow of the workpiece W, but may be installed on the downstream side of the normal cleaning unit 1b.

  Here, in this invention, the normal cleaning means 1b which cleans the workpiece | work plane W2 is an arbitrary component, and the cleaning mechanism of the same kind of dust remover conventionally used can be applied. Therefore, in the following, only the parts related to the side surface cleaning means 1a will be described, and a specific description will be omitted.

  Referring to FIG. 2, the side surface cleaning unit 1 a includes a housing 2 having a conveyance path 21 for the workpiece W therein, and the workpiece W is placed on the upstream side (the left side surface in FIG. 2) of the conveyance path 21. A transport tray 22 for transporting into the side surface cleaning means 1a is provided horizontally.

  A conveyor belt 221 is stretched in parallel along the conveyance direction of the workpiece W on the conveyance tray 22, and the workpiece W is conveyed into the conveyance path 21 along the flow of the conveyor belt 221.

  A pair of upper and lower transport rollers driven by driving means (not shown) is provided in the transport path 21, and the work W that has exited the transport tray 22 moves from the right direction to the left direction in the transport path 21 by the transport rollers. Move while keeping the level. FIG. 2 shows only the driving gear.

  In this embodiment, the driving means uses a rotational driving force generated by a motor M provided in the normal cleaning means 1b, and these are conveyed by a conveyor belt 221 via a plurality of transmission gears (see FIG. 2). It is transmitted to the transport roller.

  In addition, you may provide an independent drive means in the side surface cleaning means 1a, without utilizing the drive force of the motor M of the normal cleaning means 1b. The drive means may be electric or manual, and is an arbitrary matter in the present invention.

  A feature of the present invention resides in a pair of side surface cleaning units 3 and 3 that are disposed opposite to each other across the conveyance path 21. The side surface cleaning units 3 and 3 are arranged to face each other with the workpiece W sandwiched between both side surfaces of the housing 2, and the arrangement interval between the side surface cleaning units 3 and 3 is set to be narrower than the width of the workpiece W. Has been.

  In addition, when cleaning the workpiece | work W from which width differs, you may further provide the adjustment means which can change arbitrarily the opposing distance of each side surface cleaning part 3 and 3 according to the magnitude | size of the workpiece | work W. .

  In this embodiment, each of the side surface cleaning parts 3 and 3 is the same structure facing each other in a symmetrical manner. Therefore, in the following description, only one side surface cleaning part 3 will be described and the other side cleaning part will be described. A description of the side surface cleaning unit 3 is omitted.

  FIG. 3 is a perspective view of the side cleaning unit 3 extracted, and FIG. 4 is a cross-sectional view showing the internal structure thereof. The side surface cleaning unit 3 includes a rotation unit 4 that rotates about a horizontal rotation axis L1 parallel to the conveyance surface of the workpiece W, and a plurality of side surface cleaning units 5 that are installed at a predetermined angle with respect to the rotation unit 4. I have.

  The rotation unit 4 includes a rotation frame 41 that rotates about a horizontal rotation axis L1 and a rotation shaft 42 that is provided coaxially from the center of the rotation frame 41 along the horizontal rotation axis L1. The rotating frame 41 is formed of a plate body formed in a substantially square shape, and screw holes (not shown) for attaching the side surface cleaning unit 5 are provided on each side end surface.

  In this embodiment, the rotating frame 41 is formed in a square shape having four end surfaces in order to attach the four side surface cleaning units 5, but the end surface is arbitrary depending on the number of the side surface cleaning units 5. (For example, a triangular shape). At this time, it is necessary to make the distance (rotation radius) from the rotating shaft 42 to each end face the same length.

  The rotating shaft 42 protrudes from the center of the rotating frame 41 toward both sides. Support shafts 231 of mounting frames 23 (see FIG. 4) provided on the housing 2 are provided on both end surfaces of the rotating shaft 42. Bearing holes 421 and 421 that are supported by the H.231 are provided.

  Next, the side surface cleaning unit 5 will be described. In addition, since all the side surface cleaning units 5 have the same structure with respect to the side surface cleaning unit 5, one side surface cleaning unit 5 is extracted and described below.

  As shown in FIG. 3, the side surface cleaning unit 5 includes a base frame 51 attached to the rotating unit 4 and a roller unit 52 attached integrally to the base frame 51.

  The base frame 51 has a metal bottom plate 511 attached to the rotating frame 41, and has four side plates 512 erected substantially at right angles from each side of the bottom plate 511 in a box shape in which one surface is opened. Is formed. The height of each side plate 512 is set to a height at which a part of the roller body 541 of the roller unit 52 can be exposed.

  Of the four side plates 512, a part of the side plate 512 (the left and right side plates 512 in FIG. 4) having a surface orthogonal to the axial direction of the rotating shaft 42 is provided with each side surface cleaning unit 5 on the workpiece side surface of the workpiece W. A locking hole 513 is provided as one holding means for holding at a normal position with respect to W1.

  As shown in FIG. 4, the side surface cleaning unit 5 attached to the rotation unit 4 is obtained by the engagement projection 241 of the engagement portion 24 provided on the attachment frame 23 described later in this engagement hole 513. Movement is restricted.

  5A, 5B, and 6, the roller unit 52 includes a roller base 53 that is screwed to the base frame 51, a side cleaning roller 54 that is attached to the roller base 53, and And a pressing means 55 that always presses the side cleaning roller 54 toward the workpiece W.

  The roller base 53 includes an attachment plate 531 attached to the base frame 51, and a roller support plate 532 that holds the side surface cleaning roller 54 rotatably and is supported by the attachment plate 531 via the pressing means 55.

  As shown in FIG. 6, the mounting plate 531 is formed in a U shape by bending both ends of a single metal plate substantially at a right angle. In the base portion (upper surface in FIG. 6) of the mounting plate 531, four mounting holes 531 a for mounting the mounting plate 531 to the base frame 51 are provided in this embodiment, and mounting is performed via the mounting holes 531 a. The plate 531 is screwed to the base frame 51.

  The base portion of the mounting plate 531 is further provided with a receiving hole 531b to which the retaining bush 553 is attached. The receiving hole 531b is for fixing a retaining bush 553 used for retaining the slide shaft 551 included in the pressing means 55, and is formed in the center of the base portion.

  Each side plate of the mounting plate 531 is formed with a U-shaped guide groove 531c from the tip to the base. The guide groove 531c guides the guide roller 533 attached to the roller support plate 532. When the guide roller 533 moves along the guide groove 531c, the side cleaning roller 54 is orthogonal to the workpiece side surface W1. It can be surely slid in the direction.

  The roller support plate 532 is formed in a U-shape in which both ends of one metal plate are bent substantially at right angles, like the mounting plate 531. A fixing hole 532 a for fixing one end (the lower end in FIG. 6) of the slide shaft 551 is formed in the center of the base of the roller support plate 532.

  Each side plate of the roller support plate 532 is provided with a support hole 532 b that supports the guide roller 533. A guide roller 533 is rotatably attached to the support hole 532b. The guide roller 533 is formed of a synthetic resin disk roller, and is formed in a disk shape that can move along the above-described guide groove 531c.

  Each side plate of the roller support plate 532 is further formed with a bearing hole 532c for pivotally supporting the side surface cleaning roller 54. Referring to FIG. 6, the side surface cleaning roller 54 includes a roller body 541 that contacts the workpiece side surface W <b> 1 to remove dust, and a roller rotation shaft 542 that is inserted through the center of the roller body 541.

  The roller body 541 is made of, for example, a rubber-based material such as butyl rubber, and a bearing hole 541a that supports the roller rotation shaft 542 is provided at the center in the axial direction. Bushes 543 that support the roller rotation shaft 542 are fitted to both ends of the bearing hole 541.

  The roller body 541 may be, for example, an adhesive roller having adhesiveness, or may be a rotating brush. Furthermore, one may be an adhesive roller (rubber roller) and the other may be a rotating brush, and the specifications of the roller body 541 can be arbitrarily set.

  The roller rotation shaft 542 is attached so as to pass through the bushes 543, and the C-ring 544 for retaining is fixed to both ends of the roller rotation shaft 542 so as to be integrated into the roller main body 541.

  The axial length of the roller body 541 is preferably set to be longer than at least the thickness of the workpiece W, and more preferably has an axial length that is twice or more the thickness of the workpiece W. preferable.

  According to this, two surfaces to be cleaned can be obtained by one roller main body 541 as described later, and the roller main body 541 can be used more economically (see FIG. 7).

  Next, the pressing means 55 will be described. As shown in FIG. 6, the pressing means 55 has one end attached to the fixing hole 532a of the roller support plate 532 and the other end slidably attached to the attachment plate 531 via the retaining bush 553, A compression spring 552 disposed around the slide shaft 551 is provided.

  The slide shaft 551 is made of a metal round bar, and one end side (the lower end in FIG. 6) is fixed to the base portion of the roller support plate 532. On the upper end side of the slide shaft 551, a fitting groove 551a for fitting a retaining C ring 554 is formed.

  In attaching the side cleaning roller 54 to the attachment plate 531, first, the compression spring 552 is inserted from the upper end side of the slide shaft 551, and the tip of the slide shaft 551 is directly inserted into the retaining bush 553 attached to the attachment plate 531.

  Next, the slide shaft 551 is pushed into the opposite side of the retaining bushing 553 until it is exposed, and then the C-ring 554 is fitted into the fitting groove 551a to be assembled integrally. Thereby, the roller unit 52 is completed.

  Referring again to FIG. 3, in this embodiment, two roller units 52 are installed for one base frame 51. Each roller unit 52 is installed in parallel along the conveyance direction of the workpiece W.

  In this embodiment, the roller unit 52 is installed at two locations with respect to the base frame 51, but it is sufficient that at least one location is installed, and the number of units installed is arbitrary. In this embodiment, the roller unit 52 is installed so as to be a rotating shaft system orthogonal to the conveyance direction of the workpiece W, but may be installed at an inclination.

  As shown in FIG. 7, the side surface cleaning unit 3 is installed in a state in which the center position of the axial length of the roller body 541 is shifted by a predetermined position with respect to the conveyance surface L <b> 2 of the workpiece W. That is, the center position of the side surface cleaning unit 3 is the axis L1 of the rotating shaft 42 of the rotating unit 4, and the axis L1 and the conveying surface L2 are attached in a shifted state.

  According to this, as shown in FIG. 7, since the workpiece W comes into contact with a position shifted from the center of the roller main body 541 of the side surface cleaning unit 52, the workpiece W can be cleaned with about half of the surface to be cleaned.

  Further, when the cleaning surface becomes dirty, the roller unit 52 is removed and turned upside down so that it can be cleaned using the cleaning surface of the unused portion. You can get a plane.

  In using this dust removing device, first, the facing distance between the side surface cleaning units 3 and 3 is set in advance so as to be narrower than the width of the workpiece W, and in this state, it is placed on the transport tray 22 of the side surface cleaning means 1a. The work W is placed. The placed work W is drawn into the side surface cleaning unit 1 a by the conveyor belt 221.

  When the workpiece W is conveyed, it passes over the roller body 541 of the roller unit 52 disposed on the side surface side of the housing 2. At this time, when the roller main body 541 comes into contact with the workpiece side surface W1 of the workpiece W, dust adhering to the workpiece side surface W1 can be removed.

  The workpiece W from which the dust on the side surface W1 has been removed is conveyed to the adjacent normal cleaning means 1b. Similarly, after the workpiece plane W2 is cleaned, the workpiece W is discharged onto the conveyance tray, thereby completing a series of cleaning steps. .

  When the roller main body 541 becomes dirty during cleaning and the cleaning ability is deteriorated, by rotating a part of the side surface cleaning unit 52 by hand or the like, the rotating unit 4 rotates and a new unused side surface cleaning unit 52 is newly added. It is arranged on the conveyance path 22.

  In the embodiment described above, the rotation unit 4 is manually rotated. However, a dedicated rotation drive mechanism or the like may be further provided so that the rotation unit 4 can be automatically rotated and stopped.

  Moreover, in this embodiment, although the dust removal apparatus 1 is constructed | assembled by combining the side part cleaning part 1a and the normal cleaning means 1b, the side part cleaning member 3 is integrated in the normal cleaning means 1b. It may be used by being incorporated into the side, or may be used only by the side cleaning unit 1a. As long as the above-described basic form is provided, these various modifications are also included in the present invention.

The perspective view of the dust removal apparatus which concerns on one Embodiment of this invention. Sectional drawing which showed typically the internal structure of the dust removal apparatus of the said embodiment. The perspective view which shows the structure of a side surface cleaning member. Sectional drawing for demonstrating the attachment structure of a side surface cleaning member. The front view and sectional drawing of a roller unit. The exploded perspective view of a roller unit. The schematic diagram explaining the attachment form of a side surface cleaning member.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Dust removal device 1a Side cleaning part 1b Normal cleaning part 2 Housing | casing 3 Side cleaning member 4 Rotating unit 5 Side cleaning unit 51 Base frame 52 Roller unit

Claims (6)

In the dust removing apparatus that includes a cleaning unit that removes dust attached to the plate-like workpiece, and that removes dust attached to the workpiece by a cleaning roller provided in the cleaning unit.
A dust removing device comprising a side surface cleaning unit that exclusively removes dust adhering to the side surface of the workpiece.   The side cleaning unit is configured to contact the side cleaning roller along the side surface of the workpiece, a unit base that supports the side cleaning roller, and always press the side cleaning roller toward the side of the workpiece. The dust removing device according to claim 1, further comprising pressing means.   The axial length of the side surface cleaning roller is set to be longer than at least the plate thickness of the workpiece, and the side surface cleaning roller is shifted by a predetermined position with respect to the conveyance surface of the workpiece. The dust removing device according to claim 1 or 2, wherein the dust removing device is installed in a state where the dust is removed.   4. The dust removing device according to claim 1, wherein at least two of the side surface cleaning rollers are provided on the unit base along a conveyance direction of the workpiece.   The dust removing device according to any one of claims 1 to 4, further comprising a rotating unit having a horizontal rotating shaft parallel to the workpiece conveying surface, wherein the rotating unit includes a plurality of the side surface cleaning units.   The dust removing device according to claim 5, wherein the rotating unit is provided with four side cleaning units at 90 ° intervals with the horizontal rotating shaft as a center.

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