Laminated paper laminating device

Abstract

To provide laminated paper laminating device that can cut long laminated paper drawn from a paper roll into sheets and laminate them well on a glass substrate.SOLUTION: The laminated paper laminating device 100 sequentially overlaps laminated paper sheets 1 on the surfaces of multiple substrates G being conveyed, and includes a feed mechanism 25 that feeds out long laminated paper 1L from a paper roll 1R in which long laminated paper 1L is wound in a roll shape, a cutting mechanism 26 that cuts the long laminated paper 1L fed out by the feed mechanism 25 into laminated paper sheets 1 of a size to be overlapped on the surfaces of the glass substrates G, a guide mechanism 27 that conveys the laminated paper sheets 1 cut by the cutting mechanism 26 to the surfaces of the glass substrates G, and a spray mechanism 13 that is arranged upstream of the cutting mechanism 26 in the feed direction Y of the long laminated paper 1L and that sprays mist-like water W onto at least a surface on one side of the long laminated paper 1L.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a laminated paper laminating device. [Background technology]

[0002] For example, glass substrates for FPDs (Flat Panel Displays) used in liquid crystal displays, plasma displays, etc., are required to prevent the adhesion of minute foreign matter and scratches to the surface, and for this reason, slip sheets are placed on the surface of the glass substrate during storage and transportation (for example, Patent Document 1).

[0003] This interleaf paper is drawn out from a roll of long interleaf paper, cut by a cutter into a size that covers the surface of the glass substrate, and then laid on the glass substrate (see, for example, Patent Documents 2 and 3). [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Laid-Open No. 2013-256315 [Patent Document 2] Patent No. 5807417 [Patent Document 3] Patent No. 6953795 Summary of the Invention [Problem to be solved by the invention]

[0005] However, the longer interleaf paper unwound from the roll paper tends to have a stronger curl as the winding diameter of the roll paper becomes smaller. As a result, the interleaf paper may get caught in the device or become misaligned during transport after being cut, which can result in lamination defects in which the interleaf paper floats up from the glass substrate when it is laminated on the surface of the glass substrate.

[0006] SUMMARY OF THE INVENTION It is therefore an object of the present invention to provide an interleaf paper laminating device that is capable of cutting a long interleaf paper pulled out from a paper roll and laminating it satisfactorily onto a glass substrate. [Means for solving the problem]

[0007] The present invention comprises the following configurations. An interleaf paper laminating device that sequentially overlaps interleaf papers on the surfaces of a plurality of conveyed glass substrates, a feeding mechanism that feeds out the long interleaf paper from a roll of the long interleaf paper wound in a roll shape; a cutting mechanism for cutting the long interleaf paper fed by the feeding mechanism into interleaf paper of a size to be superimposed on the surface of the glass substrate; a guide mechanism that transports the interleaf paper cut by the cutting mechanism onto the surface of the glass substrate; a spray mechanism that is disposed upstream of the cutting mechanism in the feeding direction of the long interleaf paper and that sprays atomized water onto at least one surface of the long interleaf paper; Equipped with Laminating equipment. [Effects of the Invention]

[0008] According to the present invention, it is possible to provide an interleaf laminating device that can cut a long interleaf paper pulled out from a roll of paper and laminate it well onto a glass substrate. [Brief explanation of the drawings]

[0009] [Figure 1] FIG. 1 is a configuration diagram of the slip sheet stacking device according to this embodiment. [Figure 2] FIG. 2 is a cross-sectional view taken along line II-II in FIG. [Figure 3] FIG. 3 is a configuration diagram of an interleaf stacking device according to the first modification. [Figure 4] FIG. 4 is a configuration diagram of an interleaf stacking device according to the second modification. [Figure 5] FIG. 5 is a configuration diagram of an interleaf stacking device according to the third modification. [Figure 6]FIG. 6 is a configuration diagram showing another example of the guide mechanism. DETAILED DESCRIPTION OF THE INVENTION

[0010] Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is a configuration diagram of an interleaf laminating device 100 according to this embodiment.

[0011] 1, the interleaf laminating device 100 according to this embodiment is a device for overlapping and laminating interleaf sheets 1 so as to cover one of the main surfaces of a glass substrate G. The interleaf sheets 1 are laminated on the glass substrate G by cutting a long interleaf sheet 1L into a size that covers the surface of the glass substrate G.

[0012] The laminated paper stacking device 100 includes a conveying device 11 that conveys the glass substrate G, and a stacking device 12 that stacks and stacks the laminated paper 1 so as to cover one of the main surfaces of the glass substrate G conveyed by the conveying device 11.

[0013] The interleaf paper 1 laminated on the surface of the glass substrate G is a sheet-like interposing material that is placed between the glass substrates G when stacking multiple glass substrates G during transportation or storage. The interleaf paper 1 is, for example, a sheet having a smoothness of 5 to 30 seconds (JIS P 8119, 1998) and a density of 0.4 to 1.0 g / cm. 3 A material having a resin content of 0.5% by mass or less (JIS P 8224, 2002), excellent cushioning properties, and minimal transfer of resin content is selected.

[0014] The glass substrate G on which the interleaf paper 1 is laminated is made of an alkali-free glass material used for flat panel displays (FPDs) such as LCDs (Liquid Crystal Displays) and OLEDs (Organic Light-Emitting Diodes).

[0015] The conveying device 11 includes a plurality of horizontally arranged conveying rollers 21. These conveying rollers 21 are arranged at intervals from one another, and the glass substrates G are sequentially fed onto the upper portions of these conveying rollers 21. The conveying device 11 horizontally conveys the fed glass substrates G sequentially in one direction, which is a conveying direction X, by rotating the conveying rollers 21 in the same direction.

[0016] The laminating device 12 includes a feeding mechanism 25, a cutting mechanism 26, a guide mechanism 27, and a spray mechanism 13.

[0017] The unwinding mechanism 25 is a mechanism that unwinds the long interleaf paper 1L, which has been wound around the core 2 to form the roll paper 1R, from the roll paper 1R and unwinds it in the unwinding direction Y. This unwinding mechanism 25 is equipped with, in order from the upstream side, a pair of pull-out rollers 31, a dancer roller 32, a guide roller 33, and a pair of pay-out rollers 34. The long interleaf paper 1L, which has been wound around the core 2 to form the roll paper 1R, is pulled out by the pull-out roller 31, is then hung on the dancer roller 32 and the guide roller 33, and is unwound downstream by the pay-out roller 34.

[0018] The pair of pull-out rollers 31 are arranged opposite each other and sandwich and pull out the long interleaf sheet 1L from the roll paper 1R. The dancer roller 32 applies tension to the long interleaf sheet 1L between the pull-out roller 31 and the pay-out roller 34, causing the long interleaf sheet 1L to be sent downstream without slack. The guide roller 33 guides the long interleaf sheet 1L, to which tension has been applied by the dancer roller 32, to the pay-out roller 34. The pair of pay-out rollers 34 are arranged opposite each other and sandwich and pay out the long interleaf sheet 1L downstream.

[0019] The cutting mechanism 26 is equipped with a long cutter 35. This cutter 35 is provided above the long interleaf paper 1L fed by the feeding mechanism 25, and is arranged along the width direction of the long interleaf paper 1L. The cutting mechanism 26 lowers the cutter 35 when the feed dimension of the long interleaf paper 1L fed from the feeding mechanism 25 reaches the set dimension set for overlapping with the glass substrate G. As a result, the long interleaf paper 1L is cut by the cutter 35 into an interleaf paper 1 of the set dimension that covers the surface of the glass substrate G.

[0020] The guide mechanism 27 includes a conveyor 41, a pressure roll 42, and a guide portion 43. One end of the conveyor 41 is disposed on the cutting mechanism 26 side, and the other end is disposed above the transport device 11. The conveyor 41 is disposed so as to incline downward from one end side to the other end side.

[0021] The conveyor 41 has a pair of pulleys 45 and an endless belt 46 that is looped around these pulleys 45. As the pulleys 45 rotate, the upper side of the belt 46 runs diagonally downward. As a result, the interleaf paper 1 fed onto the conveyor 41 is transported diagonally downward by the belt 46.

[0022] The pressure roll 42 is disposed near the lower end on the upper surface side of the conveyor 41. A plurality of pressure rolls 42 are disposed at intervals in the width direction of the conveyor 41, and press down from above the interleaf paper 1 transported on the conveyor 41 by the belt 46.

[0023] The guide portion 43 is provided between the lower end of the conveyor 41 and the vicinity of the upper portion of the glass substrate G transported by the transport device 11. The guide portion 43 is formed in a comb-like shape and is disposed so as to slope downward from one end to the other end. The guide portion 43 transfers the interleaf paper 1 sent out from the conveyor 41 onto the upper surface of the glass substrate G.

[0024] The spray mechanism 13 is arranged upstream of the cutting mechanism 26 in the laminating device 12 in the payout direction Y of the long interleaf paper 1L. In particular, the spray mechanism 13 is preferably arranged upstream of the cutting mechanism 26 in the payout direction Y, and upstream of the payout roller 34, which is the most downstream in the payout direction Y. In this example, the spray mechanism 13 is arranged between the pull-out roller 31 and the dancer roller 32, on the side of the surface of the long interleaf paper 1L that is wound around the core 2. The spray mechanism 13 may be provided integrally with the other mechanisms of the laminating device 12, or may be provided separately.

[0025] FIG. 2 is a cross-sectional view taken along line II-II in FIG. As shown in FIGS. 1 and 2, the spraying mechanism 13 has a plurality of sprayers 51 (four in this example). Each sprayer 51 has a spray outlet 52 and sprays water W in a mist form from the spray outlet 52. The sprayers 51 are arranged so that the spray outlet 52 faces the long interleaf 1L. These sprayers 51 are arranged at intervals in the width direction perpendicular to the payout direction Y of the long interleaf 1L. Furthermore, each sprayer 51 of the spraying mechanism 13 is arranged so that the distance D between the spray outlet 52 and the long interleaf 1L is 100 mm or more and 1000 mm or less, preferably 100 mm or more and 500 mm or less. This allows the mist water W sprayed from the spray outlet 52 of each sprayer 51 to be sprayed evenly and sufficiently in the width direction onto the long interleaf 1L.

[0026] The spray mechanism 13 also includes a sensor 61 and a control unit 62. The sensor 61 is a proximity sensor such as a laser sensor, and is placed near the roll paper 1R. The sensor 61 detects the outer diameter of the roll paper 1R.

[0027] The control unit 62 is connected to the sensor 61 and the sprayers 51. A detection signal from the sensor 61 is sent to the control unit 62. The control unit 62 activates each sprayer 51 based on the detection signal from the sensor 61. Specifically, based on the detection signal from the sensor 61, the control unit 62 activates the sprayers 51 to spray mist-like water W from the nozzles 52 when the outer diameter of the paper roll 1R falls below a threshold value based on the detection signal from the sensor 61. This threshold value can be selected as appropriate. For example, it is preferable to set the outer diameter of the paper roll 1R at which the radial thickness from the core 2, which is the winding thickness of the continuous interleaf 1L, is 20 mm as the threshold value, and activate the sprayers 51 to spray mist-like water W from the nozzles 52 once the outer diameter falls below this threshold value.

[0028] Here, when the long interleaf paper 1L is pulled out from the roll paper 1R and the winding diameter of the roll paper 1R becomes smaller, the curling tendency imparted to the long interleaf paper 1L becomes stronger, and the interleaf paper 1 cut by the cutting mechanism 26 becomes curved. Then, when the interleaf paper 1 is fed onto the surface of the glass substrate G by the guide mechanism 27, the end of the curved interleaf paper 1 may get caught in the gap between the conveyor 41 and the guide part 43 of the guide mechanism 27, causing a transport failure, which may result in damage or misalignment of the interleaf paper 1. Furthermore, when the interleaf paper 1 is superimposed on the surface of the glass substrate G, a stacking failure may occur, in which the curved interleaf paper 1 lifts up from the glass substrate G.

[0029] In the interleaf stacking device 100 according to this embodiment, the spray mechanism 13 sprays mist water W onto the long interleaf paper 1L. This allows the long interleaf paper 1L, which has developed a strong curl due to a reduced winding diameter of the roll paper 1R, to be smoothed out by the sprayed water W. This prevents the interleaf paper 1L from curving due to the curl when the cutting mechanism 26 cuts the long interleaf paper 1L into interleaf paper 1 of the set dimensions. This prevents poor transport and loading of the interleaf paper 1, and allows the interleaf paper 1 to be smoothly superimposed on the surface of the glass substrate G without any gaps. This allows the roll paper 1R wound around the core 2 to be used up without waste, thereby reducing costs.

[0030] Next, a modified example of the interleaf stacking device 100 will be described. (Variation 1) FIG. 3 is a configuration diagram of an interleaf stacking device 100A according to the first modification.

[0031] 3, in the interleaf stacking device 100A according to the first modification, the spray mechanisms 13 and 71 are arranged at a plurality of locations (two locations in this example) in the payout direction Y of the long interleaf 1L. Like the spray mechanism 13, the spray mechanism 71 also has a plurality of sprayers 51. These sprayers 51 are arranged at intervals in the width direction perpendicular to the payout direction Y of the long interleaf 1L, and the spray nozzles 52 of each sprayer 51 are arranged facing the long interleaf 1L.

[0032] One spray mechanism 13 is disposed between the pull-out roller 31 and the dancer roller 32, and the other spray mechanism 71 is disposed between the dancer roller 32 and the guide roller 33. These spray mechanisms 13 and 71 are both disposed on the side of the continuous interleaf paper 1L that is wound around the core 2. The operation of these spray mechanisms 13 and 71 is controlled by the control unit 62.

[0033] In this interleaf stacking device 100A, mist-like water W can be sprayed onto the long interleaf 1L pulled out from the paper roll 1R at multiple locations in the payout direction Y. For example, the spray mechanisms 13, 71 can be individually activated at multiple locations depending on the winding diameter of the paper roll 1R. In other words, by increasing the number of activations of the spray mechanisms 13, 71 as the winding diameter of the paper roll 1R becomes smaller, the curling tendency of the interleaf 1L can be appropriately suppressed depending on the strength of the curl.

[0034] (Variation 2) FIG. 4 is a configuration diagram of an interleaf sheet stacking device 100B according to the second modification.

[0035] 4, in the interleaf stacking device 100B according to the second modification, the spray mechanisms 13 and 72 are also arranged at multiple locations (two locations in this example) in the payout direction Y of the long interleaf 1L. Like the spray mechanism 13, the spray mechanism 72 also has multiple sprayers 51. These sprayers 51 are arranged at intervals in the width direction perpendicular to the payout direction Y of the long interleaf 1L, and the spray nozzles 52 of each sprayer 51 are arranged facing the long interleaf 1L.

[0036] In this interleaf stacking device 100B, mist-like water W can also be sprayed onto the long interleaf 1L pulled out from the paper roll 1R at multiple locations in the payout direction Y. For example, multiple spray mechanisms 13 can be activated individually depending on the winding diameter of the paper roll 1R. In other words, by increasing the number of activations of the spray mechanisms 13, 72 as the winding diameter of the paper roll 1R becomes smaller, the curling tendency of the interleaf 1L can be appropriately suppressed depending on the strength of the curl.

[0037] Furthermore, in this interleaf stacking device 100B, mist water W is sprayed onto both the surface of the long interleaf 1L that is wound around the core 2 and the surface opposite to the wound surface, thereby effectively suppressing curling.

[0038] (Variation 3) FIG. 5 is a configuration diagram of an interleaf stacking device 100C according to the third modification.

[0039] 5, in the interleaf stacking device 100C according to the third modification, one spray mechanism 71 is disposed between the dancer roller 32 and the guide roller 33, and its operation is controlled by the control unit 62. The spray mechanism 71 also includes a plurality of sprayers 51 that are disposed at intervals in the width direction of the long interleaf 1L, which is perpendicular to the payout direction Y, and the spray nozzles 52 of the respective sprayers 51 are disposed facing the long interleaf 1L.

[0040] In the slip sheet stacking device 100C according to this variant example 3, mist-like water W is sprayed between the dancer roller 32 and the guide roller 33 onto the long slip sheet 1L pulled out from the roll paper 1R, thereby preventing the slip sheet 1 from curving due to its tendency to curl.

[0041] Next, another example of the guide mechanism 27 will be described. FIG. 6 is a structural diagram showing another example of the guide mechanism 27. In FIG.

[0042] 6, the guide mechanism 27 is provided with pads 47 between the conveyor 41 and the guide portion 43. The pads 47 are fitted between the teeth of the comb-shaped guide portion 43 and attached to the guide portion 43. A plurality of pads 47 are provided at intervals in the width direction of the guide portion 43.

[0043] In this way, by providing the pad 47 between the conveyor 41 and the guide portion 43 in the guide mechanism 27, the pad 47 can smoothly transport the interleaf paper 1 from the conveyor 41 to the guide portion 43. Therefore, it is possible to prevent poor transport caused by the end of the interleaf paper 1 being sent out from the conveyor 41 getting into the gap between the conveyor 41 and the guide portion 43.

[0044] In the above embodiment, the spray mechanisms 13, 71, 72 are exemplified as being provided with a plurality of sprayers 51 that spray the mist water W, but the spray mechanisms 13, 71, 72 are not limited to being provided with a plurality of sprayers 51. For example, the spray mechanisms 13, 71, 72 may be provided with a long pipe having a plurality of spray ports spaced apart from one another, and the spray mechanisms may be configured to spray the mist water W from each of the spray ports.

[0045] As such, the present invention is not limited to the above-described embodiments, and the present invention also contemplates the mutual combination of the various components of the embodiments, as well as modifications and applications by those skilled in the art based on the description in the specification and well-known techniques, and these modifications and applications are included in the scope of protection sought.

[0046] As described above, the present specification discloses the following: (1) A laminate laminating device for sequentially laminating interleaf sheets onto the surfaces of a plurality of conveyed glass substrates, a feeding mechanism that feeds out the long interleaf paper from a roll of the long interleaf paper wound in a roll shape; a cutting mechanism for cutting the long interleaf paper fed by the feeding mechanism into interleaf paper of a size to be superimposed on the surface of the glass substrate; a guide mechanism that transports the interleaf paper cut by the cutting mechanism onto the surface of the glass substrate; a spray mechanism that is disposed upstream of the cutting mechanism in the feeding direction of the long interleaf paper and that sprays atomized water onto at least one surface of the long interleaf paper; A paper laminating device comprising: According to this slip sheet stacking device, the spray mechanism sprays mist water onto the long slip sheet, so that the sprayed water can smooth out any curling of the long slip sheet that may have developed as the roll diameter becomes smaller. This prevents the slip sheet from curving due to the curling after being cut by the cutting mechanism. This prevents slip sheet transport problems and loading problems on the glass substrate, and allows the slip sheet to be smoothly stacked on the surface of the glass substrate without gaps. This allows the rolled paper to be used up without waste, reducing costs.

[0047] (2) The feeding mechanism includes a plurality of rollers whose outer peripheral surfaces are brought into contact with the long interleaf paper, The laminated paper laminating device according to (1), wherein the spray mechanism is disposed upstream of a contact point between the delivery mechanism and a most downstream roller. According to this slip sheet laminating device, the water mist sprayed onto the long slip sheet can be leveled by the roller before the long slip sheet is cut by the cutting mechanism, thereby more effectively suppressing curling of the long slip sheet.

[0048] (3) The spray mechanism includes a plurality of sprayers that spray mist water toward the long interleaf paper, The laminated paper laminating device according to (1) or (2), wherein the plurality of sprayers are arranged at intervals in a width direction perpendicular to a direction in which the long-sized laminated paper is fed out. According to this slip sheet laminating device, the mist water sprayed from each sprayer can be sprayed evenly and sufficiently across the long slip sheet in the width direction.

[0049] (4) The slip sheet laminating device according to any one of (1) to (3), wherein the spray mechanisms are arranged at a plurality of locations in the feeding direction of the long slip sheet. This slip sheet laminating device can spray mist water onto the long slip sheet at multiple locations in the payout direction. Also, by increasing the number of times the spray mechanism is operated as the winding diameter of the roll paper decreases, for example, it is possible to appropriately suppress curling in the slip sheet depending on the strength of the curl.

[0050] (5) The slip sheet laminating device according to any one of (1) to (4), wherein the spray mechanisms are arranged on both the front and back sides of the long slip sheet. According to this slip sheet laminating device, mist water is sprayed onto both the winding surface of the long slip sheet and the surface opposite to the winding surface, thereby making it possible to effectively suppress curling.

[0051] (6) The slip sheet laminating device according to any one of (1) to (5), wherein the distance between the ejection port of the spray mechanism that ejects the atomized water and the long slip sheet is 100 mm or more and 1000 mm or less. According to this slip sheet laminating device, the mist water ejected from the ejection port can be sprayed evenly and sufficiently onto the long slip sheets.

[0052] (7) a sensor for detecting the outer diameter of the roll paper; a control unit that activates the spray mechanism when the outer diameter of the roll paper becomes equal to or smaller than a threshold based on the outer diameter detection result from the sensor; The laminated paper laminating device according to any one of (1) to (6), comprising: According to this slip sheet stacking device, when the outer diameter of the roll paper falls below a threshold, the spray mechanism can be activated to spray mist water onto the long slip sheet. In other words, mist water can be sprayed onto the long slip sheet at an appropriate time when the winding diameter of the roll paper becomes smaller and the curling tendency of the slip sheet becomes stronger. [Explanation of symbols]

[0053] 1 slip paper 1L Long interleaf paper 1R roll paper 13,71,72 Spray mechanism 25 Feeding mechanism 26 Cutting mechanism 27 Guide mechanism 31 Drawer roller (roller) 32 Dancer Rolla (Rolla) 33 Guide roller (roller) 34 Feed roller (roller) 51 Sprayer 52 spout 61 Sensors 62 Control Unit 100, 100A, 100B, 100C Laminating machine D distance G Glass substrate W water X conveying direction Y Feed direction

Claims

1. An interleaf paper laminating device that sequentially overlaps interleaf papers on the surfaces of a plurality of conveyed glass substrates, a feeding mechanism that feeds out the long interleaf paper from a roll of the long interleaf paper wound in a roll shape; a cutting mechanism for cutting the long interleaf paper fed by the feeding mechanism into interleaf paper of a size to be superimposed on the surface of the glass substrate; a guide mechanism that transports the interleaf paper cut by the cutting mechanism onto the surface of the glass substrate; a spray mechanism that is disposed upstream of the cutting mechanism in the feeding direction of the long interleaf paper and that sprays mist water onto at least one surface of the long interleaf paper; Equipped with Laminating equipment.

2. the feeding mechanism includes a plurality of rollers whose outer peripheral surfaces are brought into contact with the long interleaf paper; The spray mechanism is disposed upstream of a contact point between the supply mechanism and the most downstream roller. The slip sheet laminating device according to claim 1 .

3. the spray mechanism includes a plurality of sprayers that spray mist water toward the long interleaf paper, the plurality of sprayers are arranged at intervals in a width direction perpendicular to a direction in which the long interleaf paper is fed out, The slip sheet laminating device according to claim 1 .

4. the spray mechanisms are arranged at a plurality of locations in the feeding direction of the long interleaf paper, The slip sheet laminating device according to claim 1 .

5. the spray mechanisms are arranged on both the front and back sides of the long interleaf paper, The slip sheet laminating device according to claim 1 .

6. a distance between a spray outlet of the spray mechanism that sprays the atomized water and the long interleaf paper is 100 mm or more and 1000 mm or less; The slip sheet laminating device according to claim 1 .

7. a sensor for detecting the outer diameter of the roll paper; a control unit that activates the spray mechanism when the outer diameter of the roll paper becomes equal to or smaller than a threshold based on the outer diameter detection result from the sensor; Equipped with The laminated paper laminating device according to any one of claims 1 to 6.

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