JP2011178531A - Slip sheet transfer method and slip sheet transfer device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a slip sheet transfer method for efficiently transferring slip sheets in a packaging box and a slip sheet transfer device for performing the transfer. <P>SOLUTION: The slip sheet transfer method includes a step of sucking a slip sheet 20 prepared outside the packaging box 30 by a suction mechanism 41 in a manner that the sheet surface 21a thereof is deflected, a step of moving the slip sheet 20 sucked by the suction mechanism 41 toward the packaging box 30, and a step of releasing the sucking of the slip sheet 20 by the suction mechanism 41 after the step of moving the slip sheet 20. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention generally relates to an interleaf transfer method and an interleaf transfer device, and more specifically, to interpose between panels in a packing box in which a plurality of panels are stacked. The present invention relates to an interleaving paper transfer method for transferring an interleaving paper and an interleaving paper transfer apparatus used in such a method.

  Regarding a conventional interleaving paper transfer method, for example, Japanese Patent Application Laid-Open No. 2007-161263 discloses a packaging method for protecting a substrate from scratches and breakage when the substrate and the interleaving paper are stacked and packaged. Is disclosed (Patent Document 1). In the packaging method disclosed in Patent Literature 1, the stacked slip sheets are peeled one by one and placed on a laminate composed of a substrate and slip sheets. At this time, first, the end portion of the slip sheet is bent in a state where the slip sheet is sucked by the slip sheet suction device. Next, the end portion of the folded slip sheet is gripped by the chuck device. When gripping of the slip sheet by the chuck device is completed, suction of the slip sheet by the slip sheet suction device is stopped. Next, the slip sheet gripped by the chuck device is peeled off by moving the chuck device in the horizontal direction.

JP 2007-161263 A

  Relatively fragile panel-like parts or panel-like products typified by glass substrates and liquid crystal panels are sheet-like members called interleaving paper between them when transported in the factory or shipped from the factory. Are stacked and packed in a packing box. The interleaving paper functions as a cushioning material or a spacer for preventing the laminated panels from coming into direct contact and being damaged or adhered.

  However, since such a slip sheet generally uses a soft material such as a resin sheet or a paper sheet, it is difficult to accurately position the slip sheet. For this reason, when the prepared interleaving paper is transferred to the packaging box, there is a problem that the interleaving paper rides on the inner wall of the packaging box and the efficiency at the time of transfer may be significantly reduced.

  Accordingly, an object of the present invention is to solve the above-described problem, and to realize an interleaving paper transfer method for efficiently transferring interleaving paper to a packaging box, and implementation of such transfer. It is to provide a slip sheet transfer device.

  The interleaving paper transfer method according to the present invention is an interleaving paper transfer method for transferring interleaving paper to be interposed between panels in a packing box that is packed in a state where a plurality of panels are stacked. The interleaving paper transfer method includes the step of adsorbing the interleaving paper prepared outside the packing box by the adsorbing mechanism unit so that the paper surface is bent, and packing the adsorbing paper adsorbed by the adsorption mechanism unit After the step of moving toward the box and the step of moving the slip sheet, a step of releasing the suction of the slip sheet by the suction mechanism unit is provided. Note that the slip sheet means a sheet-like member having flexibility.

  According to the interleaf transfer method configured as described above, the size of the interleaving paper when viewed in plan is reduced by bending the interleaving paper when the interleaving paper is adsorbed by the adsorption mechanism unit. be able to. As a result, the slip sheet can easily enter the packaging box, so that the slip sheet can be efficiently transferred to the packaging box.

  Further preferably, the step of adsorbing the slip sheet includes a step of bending the slip sheet so that an outer edge of the slip surface is closer to a center side of the sheet surface when the sheet surface of the slip sheet is viewed in plan. According to the interleaf transfer method configured in this way, the gap between the outer edge of the interleaving paper and the inner wall of the packaging box is obtained by bending the interleaving paper so that the outer edge of the paper surface approaches the center side of the paper surface. Becomes larger. This makes it easier for slip sheets to enter the packaging box.

  Preferably, the suction mechanism section includes a first suction pad that applies a negative pressure to the surface of the slip sheet, and a second suction pad that is provided at a distance from the first suction pad that applies a negative pressure to the surface of the slip sheet. A suction pad. The step of sucking the slip sheet includes the step of sucking the slip sheet to the first suction pad and the second suction pad, and the step of narrowing the interval between the first suction pad and the second suction pad that sucks the slip sheet. Including.

  According to the interleaf transfer method configured as described above, by narrowing the interval between the first suction pad and the second suction pad, the sheet surface of the interleaf can be bent between these suction pads. .

  Preferably, the suction mechanism section includes a first suction pad that applies a negative pressure to the surface of the slip sheet, and a second suction pad that is provided at a distance from the first suction pad that applies a negative pressure to the surface of the slip sheet. A suction pad. The step of adsorbing the interleaving paper includes the steps of positioning the first adsorbing pad and the second adsorbing pad at positions spaced above the surface of the prepared interleaving paper, and the positioned first adsorbing pad and second adsorbing pad. Sucking the slip sheet to the first suction pad and the second suction pad by applying a negative pressure from the pad to the surface of the slip sheet.

  According to the interleaf transfer method configured as described above, the first suction pad and the second suction pad are arranged so that a gap is generated between the surface of the slip sheet and the first suction pad and the second suction pad. Position the upper side of the slip sheet. Accordingly, the surface of the slip sheet is curved while the slip sheet is sucked to the first suction pad and the second suction pad, so that the slip sheet can be sucked in a state where the slip surface is bent.

  Preferably, the suction mechanism section includes a first suction pad that applies a negative pressure to the surface of the slip sheet, and a second suction pad that is provided at a distance from the first suction pad that applies a negative pressure to the surface of the slip sheet. A suction pad. The first suction pad and the second suction pad respectively have a first suction surface and a second suction surface that overlap with the paper surface of the sucked slip sheet. The step of adsorbing the interleaving paper includes the step of adsorbing the interleaving paper to the first adsorption pad and the second adsorption pad, and the first adsorption pad and the second adsorption pad that adsorb the interleaving paper to a plane extending the first adsorption surface. And a step of tilting so that a plane extending from the second adsorption surface intersects.

  According to the interleaf transfer method configured as described above, the first suction pad and the second suction pad are tilted so that the plane extending the first suction surface and the plane extending the second suction surface intersect. Then, the slip sheet is curved while maintaining the state where the sheet surface overlaps the first suction surface and the second suction surface. Thereby, the slip sheet can be adsorbed in a state where the paper surface is bent.

  Preferably, the packaging box forms an opening surface that opens upward. The step of sucking the slip sheet includes a step of applying a negative pressure that draws the sheet surface upward from the suction mechanism unit to the slip sheet. The step of moving the slip sheet includes a step of moving the slip sheet adsorbed by the suction mechanism unit into the packing box through the opening surface. According to the interleaf transfer method configured in this manner, the interleaving paper is moved into the packing box while being adsorbed in a form in which the paper surface faces upward by the adsorbing mechanism section.

  Preferably, the step of sucking the slip sheet includes the step of sucking the slip sheet so that the surface of the slip sheet is bent upward. According to the interleaf transfer method configured in this way, the bent portion of the paper surface is positioned upward, and the outer edges of the paper surface arranged on both sides of the bent portion are positioned downward. For this reason, when the slip sheet is moved into the packaging box through the opening surface, the outer edge of the paper surface is accommodated in the packaging box before the portion bent upward. Thereby, even if it is a case where the timing which cancel | releases adsorption | suction of a slip sheet is advanced, a slip sheet can be more reliably transferred in a packaging box.

  Also preferably, the slip sheet has a rectangular plan view having a first side extending in one direction and a second side extending in a direction orthogonal to the first side. The step of adsorbing the interleaving paper includes inserting the interleaving paper so that the outer edge of the interleaving paper surface approaches the center side of the paper surface along the extending direction of the second side of the extending directions of the first side and the second side. Including a step of bending. The step of moving the slip sheet includes a step of causing the slip sheet to enter the opening while sliding along the extending direction of the first side.

  According to the interleaf transfer method configured in this way, when the interleaving paper enters the opening surface, the interleaving paper is slid along the direction orthogonal to the direction in which the outer edge of the paper surface approaches the center side. The outer edge of the paper surface can be more reliably prevented from being caught by the opening surface.

  Preferably, the slip sheet has a rectangular plan view having a long side extending in one direction and a short side shorter than the long side extending in a direction orthogonal to the long side. The step of adsorbing the interleaving paper is a step of bending the interleaving paper so that the outer edge of the interleaving paper surface approaches the center side of the paper surface along the short side stretching direction of the long side and the short side. including.

  According to the interleaving paper transfer method configured in this way, when the interleaving paper is inclined with respect to the opening surface in a plane parallel to the paper surface, the maximum length of the positional deviation with respect to the normal position is the short side. Larger on the long side than on the side. For this reason, the outer edge of the paper surface is caught by the opening so that the slip sheet moves closer to the center side of the paper surface along the extending direction of the short side, that is, by moving the long side of the paper sheet toward the center side of the paper surface. This can be prevented more reliably.

  Preferably, the slip sheet is formed from a resin sheet. According to the interleaf transfer method configured as described above, the resin sheet is interposed between the plurality of panels, thereby preventing the panels from being damaged or damaged in the packaging box.

  An interleaf transfer device according to the present invention is an interleaf transfer device for transferring interleaving paper to be interposed between panels in a packing box packed with a plurality of panels stacked. . The interleaf transfer device includes an adsorption mechanism unit and a movement mechanism unit. The suction mechanism unit includes a first suction pad that applies a negative pressure to the paper surface of the slip sheet, and a second suction pad that is provided at a distance from the first suction pad by applying a negative pressure to the paper surface of the slip sheet. A slip sheet prepared outside the packing box is sucked to the first suction pad and the second suction pad. The moving mechanism unit moves the suction mechanism unit so that the slip sheet sucked by the first suction pad and the second suction pad is directed toward the packing box. The adsorption mechanism unit further includes a drive unit. The drive unit drives at least one of the first suction pad and the second suction pad so as to change the interval between the first suction pad and the second suction pad.

  According to the slip sheet transfer device configured as described above, the space between the first suction pad and the second suction pad is narrowed by the drive unit, so that the surface of the slip sheet is bent between the suction pads. The size of the slip sheet when the paper surface is viewed in plan can be reduced. As a result, the slip sheet can easily enter the packaging box, so that the slip sheet can be efficiently transferred to the packaging box.

  An interleaf transfer device according to another aspect of the present invention is an interleaf transfer device for transferring interleaving paper to be interposed between panels in a packing box packed with a plurality of panels stacked. Mounting device. The interleaf transfer device includes an adsorption mechanism unit and a movement mechanism unit. The suction mechanism unit includes a first suction pad that applies a negative pressure to the paper surface of the slip sheet, and a second suction pad that is provided at a distance from the first suction pad by applying a negative pressure to the paper surface of the slip sheet. A slip sheet prepared outside the packing box is sucked to the first suction pad and the second suction pad. The moving mechanism unit moves the suction mechanism unit so that the slip sheet sucked by the first suction pad and the second suction pad is directed toward the packing box. The first suction pad and the second suction pad respectively have a first suction surface and a second suction surface that overlap with the paper surface of the sucked slip sheet. The first suction pad and the second suction pad are provided so that a plane extending the first suction surface and a plane extending the second suction surface intersect.

  According to the interleaf transfer device configured as described above, the interleaf is curved in a state where the paper surface overlaps with the first suction surface and the second suction surface provided at an angle intersecting each other. The size of the interleaving paper sheet can be bent to reduce the size of the interleaving paper sheet when viewed in plan. As a result, the slip sheet can easily enter the packaging box, so that the slip sheet can be efficiently transferred to the packaging box.

  Preferably, the suction mechanism section includes a position where a plane extending the first suction surface and a plane extending the second suction surface intersect, and a position where the first suction surface and the second suction surface extend in parallel. A drive unit for driving the first suction pad and the second suction pad is further included.

  According to the slip sheet transfer device configured as described above, at the time of sucking the slip sheet, the first suction pad and the second suction pad are placed at positions where the first suction surface and the second suction surface extend in parallel. In the step of driving and bending the slip sheet, the first suction pad and the second suction pad are driven to a position where a plane extending the first suction surface and a plane extending the second suction surface intersect. Thereby, the 1st suction pad and the 2nd suction pad can be controlled to the posture suitable for each step.

  As described above, according to the present invention, a slip sheet transfer method for efficiently performing transfer of slip sheets to a packaging box, and slip sheet transfer for implementing such transfer. An apparatus can be provided.

It is a side view which shows the interleaving paper transfer apparatus in Embodiment 1 of this invention. It is sectional drawing which shows the internal structure of the range enclosed by the dashed-two dotted line II in FIG. It is a side view which shows the 1st step of the slip sheet transfer method in Embodiment 1 of this invention. It is a side view which shows the 2nd step of the slip sheet transfer method in Embodiment 1 of this invention. It is a side view which shows the 3rd step of the interleaving paper transfer method in Embodiment 1 of this invention. It is a side view which shows the 4th step of the slip sheet transfer method in Embodiment 1 of this invention. It is a side view which shows the 5th step of the slip sheet transfer method in Embodiment 1 of this invention. It is a top view which shows the slip sheet adsorb | sucked by the adsorption | suction mechanism part. It is a top view which shows the slip sheet which approachs in a packing box. It is a side view which shows the path | route of the slip sheet which approachs in a packaging box. It is a front view which shows the path | route of the slip sheet seen from the direction shown by arrow XI in FIG. It is a side view which shows the step of the interleaving paper transfer method in Embodiment 3 of this invention. It is a side view which shows the next step of the slip sheet transfer method in Embodiment 3 of this invention. It is a side view which shows the interleaving paper transfer apparatus in Embodiment 4 of this invention. It is a side view which shows the step of the slip sheet transfer method in Embodiment 4 of this invention. It is a side view which shows the next step of the interleaving paper transfer method in Embodiment 4 of this invention. In the interleaving paper transfer method in Embodiment 4 of this invention, it is a side view which shows the form of the interleaving paper transferred to a packing box. In the interleaving paper transfer method in Embodiment 4 of this invention, it is a side view which shows another form of the interleaving paper transferred to a packing box.

  Embodiments of the present invention will be described with reference to the drawings. In the drawings referred to below, the same or corresponding members are denoted by the same reference numerals.

(Embodiment 1)
FIG. 1 is a side view showing an interleaf transfer apparatus according to Embodiment 1 of the present invention. With reference to FIG. 1, first, the basic structure of the slip sheet transfer device in the first embodiment of the present invention will be described. The slip sheet transfer device 10 in the present embodiment is configured as a plurality of panels. It is an apparatus for transferring the slip sheet 20 to be interposed between the glass substrates 12 in the packing box 30 packed with the glass substrates 12 stacked.

  The interleaf transfer apparatus 10 includes an adsorption mechanism unit 41 and a movement mechanism unit 51. The suction mechanism unit 41 acts as a first suction pad 42m that applies a negative pressure to the paper surface 21 of the interleaf paper 20, and applies a negative pressure to the paper surface 21 of the interleaf paper 20, and is spaced from the suction pad 42m. Including the suction pad 42n as the second suction pad provided, and the slip sheet 20 prepared outside the packing box 30 is sucked to the suction pad 42m and the suction pad 42n. The moving mechanism unit 51 moves the suction mechanism unit 41 so that the slip sheet 20 sucked by the suction pad 42m and the suction pad 42n is directed to the packing box 30.

  The suction mechanism unit 41 further includes a drive unit 45 that drives the suction pad 42m and the suction pad 42n as at least one of the suction pad 42m and the suction pad 42n so as to change the interval between the suction pad 42m and the suction pad 42n. Including.

Next, the structure of the slip sheet transfer device 10 in FIG. 1 will be described in detail.
The interleaf transfer apparatus 10 according to the present embodiment transfers interleaving paper 20 to be inserted between the glass substrates 12 into the packing box 30 when packing a plurality of glass substrates 12 in the packing box 30. Used to do. The glass substrate 12 is used for manufacturing a liquid crystal panel. For example, the glass substrate 12 is transferred from a substrate factory to a panel factory in a state of being packed in a packing box 30.

  The glass substrate 12 is provided as a thin plate-like panel. The panel to which the present invention is applied is not limited to the glass substrate 12 and may be, for example, a liquid crystal panel used for manufacturing a liquid crystal display device. In this case, the liquid crystal panel is transferred from the panel factory to the liquid crystal display assembly factory while being packed in the packing box 30. The panel may be a color filter. Further, the panel to which the present invention is applied may be a component not related to the liquid crystal display device, for example, a plasma display, or a thin plate component made of a semiconductor wafer or resin.

  The plurality of glass substrates 12 are accommodated in the packaging box 30 in such a manner that the surfaces thereof extend in the horizontal direction and the surfaces face each other between the glass substrates 12 adjacent in the stacking direction.

  A plurality of interleaf sheets 20 are prepared on the mounting table 11 in a stacked state. The interleaf paper 20 has a paper surface 21. In a state where the slip sheet 20 is placed on the placement table 11, the paper surface 21 extends in the horizontal direction.

  The interleaf paper 20 is provided as a cushioning material or a spacer for preventing the adjacent interleaf papers 20 in the packing box 30 from directly contacting each other to be damaged or adhered. The interleaf paper 20 is formed of a flexible sheet member such as a resin sheet or a paper sheet. The interleaf paper 20 is provided as a low-rigidity sheet member to which the other end hangs down by its own weight when one end thereof is gripped and lifted. In the present embodiment, a highly foamed polyethylene sheet member is used as the interleaf 20. The interleaf paper 20 is formed in a size slightly larger than the size of the glass substrate 12 to be packed.

  The packing box 30 is placed on a placement table 13 that is disposed adjacent to the placement table 11. The packaging box 30 is formed in a box shape. The packaging box 30 has an opening surface 32 that faces upward and opens. The packaging box 30 is formed such that the opening surface 32 extends in the horizontal direction. The opening surface 32 is formed in a size slightly larger than the size of the slip sheet 20 inserted between the glass substrates 12. In a state where the slip sheet 20 is housed in the packing box 30, the gap between the inner wall 34 of the packing box 30 and the outer edge of the slip sheet 20 is, for example, a size of 2 mm or less.

  The interleaf transfer apparatus 10 includes a suction mechanism unit 41 and a moving mechanism unit 51 as main components. In the present embodiment, the suction mechanism unit 41 includes a suction pad 42m and a suction pad 42n, a head unit 44, an arm unit 49, and a drive unit 45.

  The suction pad 42m and the suction pad 42n have the same structure (hereinafter referred to as the suction pad 42 unless the suction pad 42m and the suction pad 42n are particularly distinguished). The suction pad 42 sucks the slip sheet 20 by applying a negative pressure to the paper surface 21 of the slip sheet 20. The suction pad 42m and the suction pad 42n are arranged at a distance from each other. The direction in which the suction pad 42m and the suction pad 42n are spaced from each other is the horizontal direction.

  The suction pad 42m and the suction pad 42n respectively have a suction surface 43m and a suction surface 43n (hereinafter referred to as the suction surface 43 unless the two are particularly distinguished). The suction pad 42m and the suction pad 42n are provided so that the suction surface 43m and the suction surface 43n are arranged on the same plane extending in the horizontal direction.

  The suction pad 42 incorporates a negative pressure generator (not shown), and a negative pressure is applied to the paper surface 21 of the slip sheet 20 by the operation of the negative pressure sending device. The interleaf 20 subjected to the negative pressure is adsorbed to the adsorbing pad 42 in a form in which the paper surface 21 overlaps the adsorbing surface 43.

  2 is a cross-sectional view showing an internal structure in a range surrounded by a two-dot chain line II in FIG. With reference to FIG. 1 and FIG. 2, the drive part 45 is provided in the suction pad 42m and the suction pad 42n, respectively. The drive unit 45 drives the suction pad 42 so as to change the interval between the suction pad 42m and the suction pad 42n.

  More specifically, the drive unit 45 includes a rack 46 and a pinion 47 that constitute a rack and pinion, and a motor 48. The rack 46 is formed in a form in which a plurality of gears are arranged in a direction in which the suction pads 42m and the suction pads 42n are spaced apart from each other, that is, in the horizontal direction. The pinion 47 is formed in the form of a circular gear and is arranged to mesh with the rack 46. The suction pad 42 is connected to the pinion 47. The motor 48 is connected to the drive shaft of the pinion 47 so that the pinion 47 can rotate.

  When a rotational force is applied from the motor 48 to the pinion 47, the pinion 47 moves in the horizontal direction by meshing with the rack 46 while rotating. The suction pad 42 moves in the horizontal direction together with the pinion 47, and as a result, the interval between the suction pad 42m and the suction pad 42n changes.

  In the present embodiment, the case where the drive unit 45 is provided in both the suction pad 42m and the suction pad 42n has been described. However, the drive unit 45 is provided in at least one of the suction pad 42m and the suction pad 42n. That's fine. For example, the drive unit 45 may be provided only on the suction pad 42m. In this case, the distance between the suction pad 42m and the suction pad 42n changes as the suction pad 42m moves in the horizontal direction.

  With reference to FIG. 1, the moving mechanism unit 51 is provided so that the suction mechanism unit 41 can be moved between a position on the mounting table 11 and a position on the mounting table 13.

  More specifically, the moving mechanism unit 51 includes guide rails 52 and 53 and an arm unit 54. The guide rail 52 extends in the vertical direction. An arm portion 49 is fitted to the guide rail 52 so as to be slidable along the extending direction. The arm portion 54 is connected to the guide rail 52. The guide rail 53 extends in the horizontal direction. An arm portion 54 is fitted to the guide rail 53 so as to slide along the extending direction.

  The moving mechanism unit 51 further includes a drive source such as an air cylinder, a hydraulic device, or a motor. As the drive source is driven, the suction mechanism unit 41 moves in the vertical direction indicated by the arrow 101 and in the horizontal direction indicated by the arrow 102.

  Although not shown in FIG. 1, a substrate transfer device for transferring the prepared glass substrate 12 into the packaging box 30 is provided at a position adjacent to the mounting table 13. The substrate transfer apparatus has substantially the same structure as the suction mechanism unit 41 and the movement mechanism unit 51 except that the suction mechanism unit 41 has a drive unit 45.

  Note that the structure of the moving mechanism unit 51 that moves the suction mechanism unit 41 is not limited to the structure shown in FIG. 1, and for example, a structure using a robot arm is used as appropriate.

  Next, an interleaf transfer method for transferring the interleaf 20 into the packing box 30 using the interleaf transfer device 10 in FIG. 1 will be described.

  First, the basic steps of the interleaving paper transfer method will be described. In the interleaving paper transfer method in the present embodiment, the packaging box 30 is packed in a state where the glass substrates 12 as a plurality of panels are laminated. This is a method of transferring a slip sheet 20 to be interposed between glass substrates 12. In the interleaf transfer method, the interleaving paper 20 prepared outside the packing box 30 is adsorbed by the adsorbing mechanism 41 so that the paper surface 21 is bent, and adsorbed by the adsorbing mechanism 41. The step of moving the slip sheet 20 toward the packing box 30 and the step of releasing the suction of the slip sheet 20 by the suction mechanism 41 after the step of moving the slip sheet 20 are provided.

  Next, the steps of the slip sheet transfer method in the present embodiment will be described in detail. 3 to 7 are side views showing the steps of the interleaf transfer method in Embodiment 1 of the present invention.

  With reference to FIG. 3, first, the suction mechanism 41 is moved downward along the guide rail 52. The suction pad 42 is positioned on the mounting table 11 so that the suction surface 43 overlaps the paper surface 21 of the interleaf paper 20. A negative pressure generator (not shown) is operated, and the slip sheet 20 is sucked to the suction pad 42. The negative pressure acts in a direction that pulls the interleaf paper 20 above the paper surface 21. Next, referring to FIG. 4, the suction mechanism 41 is moved upward along the guide rail 52. Thereby, the slip sheet 20 sucked by the suction pad 42 is separated from the slip sheet 20 prepared on the mounting table 11.

  Referring to FIG. 5, next, the suction pad 42 is driven by the operation of the drive unit 45 so as to narrow the space between the suction pad 42 m and the suction pad 42 n. As a result, the slip sheet 20 is sucked to the suction pad 42 in a state where the paper surface 21 is bent.

  The state where the paper surface 21 is bent will be described more specifically. The paper surface 21 is bent between the suction pad 42m and the suction pad 42n. At this time, when the paper surface 21 is viewed in plan, the paper surface 21 bends so that the outer edge portion 21q of the paper surface 21 approaches the central portion 21p side of the paper surface 21. In FIG. 5, the paper surface 21 is bent downward, but the paper surface 21 may be bent upward.

  Next, referring to FIG. 6, the slip sheet 20 sucked by the suction pad 42 is directed to the packing box 30 by the operation of the moving mechanism unit 51. More specifically, the suction mechanism 41 is moved horizontally along the guide rail 53 and moved downward along the guide rail 52. As a result, the slip sheet 20 sucked by the suction mechanism unit 41 is moved into the packing box 30 through the opening surface 32. At this time, the outer edge portion 21q of the paper surface 21 is arranged in the packaging box 30 (a position surrounded by the inner wall 34).

  Since the slip sheet 20 has flexibility, when the slip sheet 20 is handled using the suction mechanism 41, it is difficult to position and transfer the slip sheet 20 in the packing box 30 with high accuracy. For this reason, there is a possibility that inconveniences such as the slip sheet 20 riding on the inner wall 34 of the packaging box 30 may occur in the steps in FIG. Moreover, although there is also an idea that the size of the packaging box 30 is sufficiently large and the gap between the interleaf paper 20 and the inner wall 34 is enlarged, the impact applied to the glass substrate 12 when the packaging box 30 is transferred is kept small. From the necessity, it is not possible to easily cope with the above measures. Further, in the present embodiment, the interleaf paper 20 is formed from a resinous sheet member. For this reason, there is also a problem that the size of the gap between the slip sheet 20 and the inner wall 34 cannot be strictly controlled because the slip sheet 20 is thermally deformed by the ambient temperature environment.

  On the other hand, in the slip sheet transfer method in the present embodiment, the size of the slip sheet 20 when the sheet surface 21 is viewed in plan is reduced by bending the sheet surface 21 in the step in FIG. . 6, when the slip sheet 20 is moved into the packing box 30 through the opening surface 32 in the step in FIG. 6, the gap between the inner wall 34 of the packing box 30 and the outer edge portion 21q of the slip sheet 20 is enlarged. be able to. As a result, the slip sheet 20 can easily enter the packing box 30.

  With reference to FIG. 7, next, the suction of the slip sheet 20 by the suction pad 42 is released by stopping the operation of a negative pressure generator (not shown). Thereby, the paper surface 21 is separated from the suction surface 43 of the suction pad 42, and the interleaf paper 20 is arranged on the glass substrate 12 in the packing box 30.

  According to the interleaf transfer device 10 and the interleaf transfer method in Embodiment 1 of the present invention configured as described above, the state where the paper surface 21 is bent when the interleaf paper 20 is adsorbed by the adsorption mechanism unit 41. By obtaining, it becomes easy for the slip sheet 20 to enter the packing box 30. Thereby, the situation where the outer edge part 21q of the slip sheet 20 rides on the inner wall 34 of the packing box 30 can be avoided, and the transfer of the slip sheet 20 to the packing box 30 can be performed easily and quickly.

(Embodiment 2)
In the present embodiment, various modifications of the interleaf transfer method in Embodiment 1 will be described.

  FIG. 8 is a plan view showing the slip sheet sucked by the suction mechanism section. In the figure, a slip sheet 20 corresponding to the steps in FIG. 5 is shown.

  Referring to FIG. 8, the slip sheet 20 includes a pair of long sides 26 extending in one direction indicated by an arrow 121 and a pair of short sides 27 extending in a direction indicated by an arrow 122 orthogonal to the long side 26. It has a rectangular shape having a plan view. In this modification, the slip sheet 20 is sucked to the suction mechanism unit 41 using four suction pads 42. The four suction pads 42 are provided so that the suction surfaces 43 of the suction pads 42 overlap the four corners of the rectangular shape of the interleaf paper 20.

  In this case, a plurality of directions can be considered as directions in which the suction pad 42 is driven at the step in FIG. That is, when the suction pad 42 is driven in the direction indicated by the arrow 111, the interleaf paper 20 bends so that the outer edge portion 21q of the paper surface 21 approaches the central portion 21p side along the extending direction of the short side 27. At this time, when the paper surface 21 is viewed in plan, the pair of long sides 26 are displaced so that the distance between them is close. Further, when the suction pad 42 is driven in the direction indicated by the arrow 112, the interleaf paper 20 is moved so that the outer edge portion 21q of the paper surface 21 approaches the central portion 21p side along the diagonal direction of the rectangular shape of the interleaf paper 20. Bend. At this time, when the paper surface 21 is viewed in a plan view, the pair of long sides 26 and the pair of short sides 27 are displaced so that their distances are close to each other. Further, when the suction pad 42 is driven in the direction indicated by the arrow 113, the slip sheet 20 bends so that the outer edge portion 21q of the paper surface 21 approaches the central portion 21p side along the extending direction of the long side 26. At this time, when the paper surface 21 is seen in a plan view, the pair of short sides 27 are displaced so that the distance between them becomes closer.

  As described above, even when the suction pad 42 is driven in any direction, the size of the slip sheet 20 when the paper surface 21 is viewed in plan can be reduced.

  FIG. 9 is a plan view showing the slip sheet entering the packing box. In the figure, the slip sheet 20 and the opening surface 32 corresponding to the steps in FIG. 6 are shown.

  With reference to FIG. 9, it is assumed that the slip sheet 20 is inclined with respect to the opening surface 32 in a plane parallel to the paper surface 21 in the step in FIG. 6. In this case, due to the long side 26 having a length greater than the short side 27, the maximum length of misalignment from the regular position of the slip sheet 20 (the position indicated by the two-dot chain line) is the short side. The long side 26 side is larger than the 27 side (D2> D1). On the other hand, when the suction pad 42 is driven in the direction indicated by the arrow 111 in FIG. 8, the pair of long sides 26 are displaced so that the distance between them is close. Thereby, even when the slip sheet 20 is inclined with respect to the opening surface 32, the slip sheet 20 can be more reliably prevented from being caught by the inner wall 34 of the packaging box 30.

  FIG. 10 is a side view showing the path of the slip sheet entering the packing box. FIG. 11 is a front view showing the path of the slip sheet viewed from the direction indicated by the arrow XI in FIG. In the figure, a slip sheet 20 and a packing box 30 corresponding to the steps in FIG. 6 are shown.

  Referring to FIG. 10, in the present modification, at the time of the step in FIG. 5, the suction pad 42 is driven in the direction indicated by the arrow 111 in FIG. Thereby, the interleaf paper 20 is bent so that the outer edge portion 21q of the paper surface 21 approaches the center portion 21p side along the extending direction of the short side 27.

  Next, at the time of the step in FIG. 6, the slip sheet 20 is moved downward while being slid along the extending direction of the long side 26 to enter the opening surface 32. At this time, in the cross section shown in FIG. 11, the gap between the outer edge portion 21 q of the paper surface 21 and the inner wall 34 of the packaging box 30 is enlarged due to the bending of the interleaf paper 20. Further, in the cross section shown in FIG. 10, first, the short side 27 located at the front end in the entry direction of the slip sheet 20 enters the packaging box 30, and subsequently, located at the rear end in the entry direction of the slip sheet 20. The short side 27 to be entered enters the packing box 30. The interleaf paper 20 can be smoothly transferred into the packing box 30 by such a form of the interleaf paper 20 entering.

  When the step in FIG. 5 is performed, the interleaf sheet 20 is bent so that the outer edge portion 21q of the paper surface 21 approaches the central portion 21p side along the extending direction of the long side 26, and at the time of the step in FIG. 20 may be moved downward while sliding along the extending direction of the short side 27 to enter the opening surface 32.

  According to the interleaf transfer method according to the second embodiment of the present invention configured as described above, the effect described in the first embodiment can be obtained in the same manner.

(Embodiment 3)
12 and 13 are side views showing the steps of the interleaf transfer method according to Embodiment 3 of the present invention. In FIG. 12, steps corresponding to the steps in FIGS. 3 and 4 are shown, and in FIG. 13, steps corresponding to the steps in FIG. 5 are shown.

  The slip sheet transfer method in the present embodiment is different from the slip sheet transfer method in Embodiment 1 in the method of bending the slip sheet 20. Hereinafter, the description of the same steps as those in the interleaf transfer method in Embodiment 1 will not be repeated.

  With reference to FIG. 12, first, the suction mechanism 41 is moved downward along the guide rail 52. The suction pad 42 is positioned at a position spaced above the paper surface 21 of the interleaving paper 20 prepared on the mounting table 11. That is, the suction pad 42 is positioned so that a gap is generated between the paper surface 21 of the interleaf paper 20 and the suction surface 43.

  Referring to FIG. 13, next, a negative pressure generator (not shown) is operated, and the slip sheet 20 is sucked to the suction pad 42. At this time, the interleaf paper 20 is sucked to the suction pad 42 arranged at a distance above the paper surface 21. While the slip sheet 20 is sucked to the suction pad 42, the slip sheet 20 curves downward between the suction pad 42m and the suction pad 42n. As a result, the slip sheet 20 is sucked to the suction pad 42 in a state where the paper surface 21 is bent.

  Thereafter, by carrying out the steps in FIGS. 6 and 7, the transfer of the slip sheet 20 to the packing box 30 is completed.

  Note that the slip sheet transfer method in the present embodiment is performed by an apparatus in which the drive unit 45 is removed from the slip sheet transfer apparatus 10 in FIG.

  According to the interleaf transfer method according to the third embodiment of the present invention configured as described above, the effects described in the first embodiment can be obtained in the same manner.

(Embodiment 4)
FIG. 14 is a side view showing an interleaf transfer apparatus according to Embodiment 4 of the present invention. The slip sheet transfer device in the present embodiment basically has the same structure as that of the slip sheet transfer device 10 in the first embodiment. Hereinafter, the description of the overlapping structure will not be repeated.

  Referring to FIG. 14, first, the basic structure of the slip sheet transfer device according to the fourth embodiment of the present invention will be described. The slip sheet transfer device 70 according to the present embodiment is configured as a plurality of panels. It is an apparatus for transferring the slip sheet 20 to be interposed between the glass substrates 12 in the packing box 30 packed with the glass substrates 12 stacked.

  The interleaf transfer device 70 includes an adsorption mechanism unit 41 and a movement mechanism unit 51. The suction mechanism unit 41 acts as a first suction pad 42m that applies a negative pressure to the paper surface 21 of the interleaf paper 20, and applies a negative pressure to the paper surface 21 of the interleaf paper 20, and is spaced from the suction pad 42m. Including the suction pad 42n as the second suction pad provided, and the slip sheet 20 prepared outside the packing box 30 is sucked to the suction pad 42m and the suction pad 42n. The moving mechanism unit 51 moves the suction mechanism unit 41 so that the slip sheet 20 sucked by the suction pad 42m and the suction pad 42n is directed to the packing box 30.

  The suction pad 42m and the suction pad 42n have a suction surface 43m as a first suction surface and a suction surface 43n as a second suction surface that overlap the paper surface 21 of the suctioned interleaf paper 20, respectively. The suction pad 42m and the suction pad 42n are provided so that a plane extending the suction surface 43m and a plane extending the suction surface 43n intersect each other.

Next, the structure of the slip sheet transfer device 70 in FIG. 14 will be described in detail.
In the slip sheet transfer device 70 in the present embodiment, the suction pad 42 has a drive unit 71 instead of the drive unit 45 in FIG. The drive unit 71 has a position where a plane extending the suction surface 43m and a plane extending the suction surface 43n intersect (position shown in FIG. 16 described later), and a position where the suction surface 43m and the suction surface 43n extend in parallel. The suction pad 42m and the suction pad 42n are driven between (positions shown in FIG. 15 described later).

  More specifically, the drive unit 71 includes a pivot unit 72 and a motor 73. The suction pad 42 is supported by the head portion 44 via the pivot portion 72. The pivot portion 72 is a rotatable shaft, and a motor 73 is connected on the shaft. When the rotational force is applied from the motor 73 to the pivot portion 72, the suction pad 42 swings around the pivot portion 72 as a fulcrum as shown by an arrow 151 in FIG. With the swinging motion of the suction pad 42m and the suction pad 42n, the inclination of the suction surface 43m and the suction surface 43n changes.

  Next, an interleaf transfer method for transferring the interleaf 20 into the packing box 30 using the interleaf transfer device 10 in FIG. 14 will be described.

  15 and 16 are side views showing steps of the interleaf transfer method according to Embodiment 4 of the present invention. In FIG. 15, steps corresponding to the steps in FIG. 3 are shown, and in FIG. 16, steps corresponding to the steps in FIGS. 4 and 5 are shown.

  The slip sheet transfer method in the present embodiment is different from the slip sheet transfer method in Embodiment 1 in the method of bending the slip sheet 20. Hereinafter, the description of the same steps as those in the interleaf transfer method in Embodiment 1 will not be repeated.

  Referring to FIG. 15, first, the suction mechanism 41 is moved downward along the guide rail 52. The suction pad 42 is positioned on the mounting table 11 so that the suction surface 43 overlaps the paper surface 21 of the interleaf paper 20. At this time, the suction pad 42 is positioned at a position where the suction surface 43m and the suction surface 43n extend in parallel. A negative pressure generator (not shown) is operated, and the slip sheet 20 is sucked to the suction pad 42.

  Next, referring to FIG. 16, the suction mechanism 41 is moved upward along the guide rail 52. Thereby, the slip sheet 20 sucked by the suction pad 42 is separated from the slip sheet 20 prepared on the mounting table 11. Next, the operation of the drive unit 71 drives the suction pad 42 to a position where a plane extending the suction surface 43m and a plane extending the suction surface 43n intersect. At this time, the state where the paper surface 21 of the interleaf paper 20 and the suction surface 43 overlap is maintained. For this reason, the slip sheet 20 is curved as the suction pad 42 is driven, and a state in which the paper surface 21 of the slip sheet 20 is bent as a whole is obtained.

  Thereafter, by carrying out the steps in FIGS. 6 and 7, the transfer of the slip sheet 20 to the packing box 30 is completed.

  FIG. 17 is a side view showing the form of the slip sheet transferred to the packing box in the slip sheet transfer method according to Embodiment 4 of the present invention. FIG. 18 is a side view showing another form of the slip sheet transferred to the packing box in the slip sheet transfer method according to Embodiment 4 of the present invention.

  Referring to FIG. 17, in the example shown in FIG. 17, in the step in FIG. 16, the suction pad 42 is driven in a direction in which the suction surface 43 m and the suction surface 43 n face each other, thereby A state where 21 is bent upward is obtained. Referring to FIG. 18, in the example shown in the figure, in the step in FIG. 16, the suction pad 42 is driven in a direction in which the suction surface 43 m and the suction surface 43 n are back to back, whereby the paper surface 21 of the slip sheet 20. Can be obtained in a state of bending downward.

  In the example shown in FIG. 17, the outer edge portion 21q of the paper surface 21 is positioned below the center portion 21p. In this case, at the time of transferring the slip sheet 20 to the packaging box 30 through the opening surface 32, the outer edge portion 21q enters the packaging box 30 before the central portion 21p. If the suction of the slip sheet 20 is released in a state where the outer edge portion 21q is arranged in the packaging box 30, the slip sheet 20 is transferred onto the glass substrate 12 while returning to the original planar shape. For this reason, when compared with the example shown in FIG. 18, the timing of releasing the suction of the slip sheet 20 can be advanced.

  According to the slip sheet transfer device 70 and the slip sheet transfer method according to the fourth embodiment of the present invention configured as described above, the effects described in the first embodiment can be similarly obtained.

  In addition, the structure of the interleaf transfer apparatus in Embodiment 1-4 demonstrated above may be combined suitably, and a new interleaf transfer apparatus may be comprised, and the step of an interleaf transfer method is also carried out. A new interleaving paper transfer method may be configured by appropriately combining. For example, the steps of the slip sheet transfer method in the second embodiment described with reference to FIGS. 8 to 11 can be applied to the slip sheet transfer method in the third and fourth embodiments.

  The embodiment disclosed this time should be considered as illustrative in all points and not restrictive. The scope of the present invention is defined by the terms of the claims, rather than the description above, and is intended to include any modifications within the scope and meaning equivalent to the terms of the claims.

  The present invention is mainly used in the manufacturing process of panel-like parts such as glass substrates and liquid crystal panels or panel-like products.

  10, 70 interleaving paper transfer device, 11, 13 mounting table, 12 glass substrate, 20 interleaving paper, 21 paper surface, 21p central portion, 21q outer edge portion, 26 long side, 27 short side, 30 packing box, 32 opening surface, 34 inner wall, 41 suction mechanism part, 42, 42m, 42n suction pad, 43, 43m, 43n suction surface, 44 head part, 45, 71 driving part, 46 rack, 47 pinion, 48 motor, 49, 54 arm part, 51 Moving mechanism section, 52, 53 guide rail, 72 pivot section, 73 motor.

Claims (13)

In a packing box that is packed in a state where a plurality of panels are stacked, an interleaf transfer method for transferring interleaving paper for interposing between panels,
A step of sucking the slip sheet prepared outside the packing box by the suction mechanism unit so that the paper surface is bent;
Moving the slip sheet adsorbed by the suction mechanism unit toward the packing box;
A slip sheet transfer method comprising: after the step of moving the slip sheet, releasing the suction of the slip sheet by the suction mechanism unit.   The step of adsorbing the slip sheet includes a step of bending the slip sheet so that an outer edge of the sheet surface approaches a center side of the sheet surface when the sheet surface of the slip sheet is viewed in plan. Paper transfer method. The suction mechanism section includes a first suction pad that applies a negative pressure to the surface of the slip sheet, and a second suction pad that applies a negative pressure to the surface of the slip sheet and is spaced from the first suction pad. Including
The step of adsorbing the slip sheet includes:
Adsorbing slip sheets on the first suction pad and the second suction pad;
The interleaf transfer method according to claim 1, further comprising a step of narrowing an interval between the first suction pad and the second suction pad that adsorb the interleaf. The suction mechanism section includes a first suction pad that applies a negative pressure to the surface of the slip sheet, and a second suction pad that applies a negative pressure to the surface of the slip sheet and is spaced from the first suction pad. Including
The step of adsorbing the slip sheet includes:
Positioning the first suction pad and the second suction pad at a position spaced apart above the surface of the prepared slip sheet;
Sucking the slip sheet to the first suction pad and the second suction pad by applying a negative pressure to the surface of the slip sheet from the positioned first suction pad and the second suction pad. The interleaf transfer method according to any one of claims 1 to 3, further comprising: The suction mechanism section includes a first suction pad that applies a negative pressure to the surface of the slip sheet, and a second suction pad that applies a negative pressure to the surface of the slip sheet and is spaced from the first suction pad. Including
The first suction pad and the second suction pad have a first suction surface and a second suction surface, respectively, overlapping with the paper surface of the sucked slip sheet,
The step of adsorbing the slip sheet includes:
Adsorbing slip sheets on the first suction pad and the second suction pad;
Tilting the first suction pad and the second suction pad that have adsorbed a slip sheet so that a plane that extends the first suction surface and a plane that extends the second suction surface intersect each other. Item 5. The interleaf transfer method according to any one of Items 1 to 4. The packing box forms an opening surface facing upward and opening;
The step of adsorbing the interleaving paper includes the step of applying a negative pressure that draws the paper surface upward from the adsorbing mechanism portion to the interleaving paper,
The slip sheet according to any one of claims 1 to 5, wherein the step of moving the slip sheet includes a step of moving the slip sheet adsorbed by the suction mechanism unit into the packaging box through the opening surface. Transfer method.   The slip sheet transfer method according to claim 6, wherein the step of sucking the slip sheet includes a step of sucking the slip sheet so that the surface of the slip sheet is bent upward. The slip sheet has a rectangular plan view having a first side extending in one direction and a second side extending in a direction orthogonal to the first side,
The step of adsorbing the interleaving paper is such that the outer edge of the interleaving paper surface approaches the center side of the paper surface along the extending direction of the second side of the extending directions of the first side and the second side. , Including the step of bending the slip
8. The slip sheet transfer according to claim 6, wherein the step of moving the slip sheet includes a step of causing the slip sheet to enter the opening while sliding along the extending direction of the first side. Loading method. The interleaving paper has a rectangular plan view having a long side extending in one direction, a direction extending perpendicular to the long side, and a short side shorter than the long side,
The step of adsorbing the interleaving paper is performed such that an outer edge of the interleaving paper surface approaches the center side of the paper surface along the extending direction of the short side of the extending directions of the long side and the short side. The interleaving paper transfer method according to claim 6, comprising a step of bending the sheet.   The interleaving paper transfer method according to any one of claims 1 to 9, wherein the interleaving paper is formed from a resin sheet. A slip sheet transfer device for transferring slip sheets for interposing between panels in a packing box packed in a state where a plurality of panels are stacked,
A packaging box comprising: a first suction pad that applies a negative pressure to the surface of the interleaving paper; and a second suction pad that applies a negative pressure to the surface of the interleaving paper and is spaced from the first suction pad. An adsorbing mechanism for adsorbing the slip sheet prepared outside the first adsorbing pad and the second adsorbing pad;
A moving mechanism that moves the suction mechanism so that the slip sheet sucked by the first suction pad and the second suction pad is directed toward a packing box;
The suction mechanism unit further includes a drive unit that drives at least one of the first suction pad and the second suction pad so as to change an interval between the first suction pad and the second suction pad. Interleaf transfer equipment. A slip sheet transfer device for transferring slip sheets for interposing between panels in a packing box packed in a state where a plurality of panels are stacked,
A packaging box comprising: a first suction pad that applies a negative pressure to the surface of the interleaving paper; and a second suction pad that applies a negative pressure to the surface of the interleaving paper and is spaced from the first suction pad. An adsorbing mechanism for adsorbing the slip sheet prepared outside the first adsorbing pad and the second adsorbing pad;
A moving mechanism that moves the suction mechanism so that the slip sheet sucked by the first suction pad and the second suction pad is directed toward a packing box;
The first suction pad and the second suction pad each have a first suction surface and a second suction surface that overlap with a surface of the sucked slip sheet, and a plane that extends the first suction surface and the second suction surface A slip sheet transfer device provided so as to intersect with a plane extending from the sheet.   The suction mechanism section includes a position where a plane extending the first suction surface and a plane extending the second suction surface intersect, and a position where the first suction surface and the second suction surface extend in parallel. The interleaf transfer apparatus according to claim 12, further comprising a drive unit that drives the first suction pad and the second suction pad between the first suction pad and the second suction pad.

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