JP2022164261A - Manufacturing method of glass plate packing body, and glass plate packing body - Google Patents

Abstract

To suppress deformation of an end part of an inserting paper sheet in a glass plate packing body.SOLUTION: A manufacturing method of a glass plate packing body PB includes a packing process S3 of placing a glass plate G and an inserting paper sheet IP on a pallet P so that an end part IPa of the inserting paper sheet IP is protruded from an end part Gc of the glass plate G. The manufacturing method of the glass plate packing body PB further includes a control process S12 for controlling the moisture percentage of the inserting paper sheet IP before the packing process S3.SELECTED DRAWING: Figure 1

Description

TECHNICAL FIELD The present invention relates to a method for manufacturing a glass plate package and a glass plate package.

As is well known, when storing and transporting glass sheets, a glass sheet package is constructed by stacking a glass sheet laminate obtained by alternately laminating glass sheets and interleaving papers on a pallet in a vertical or horizontal orientation. and the work is automated by packaging equipment.

For example, Patent Literature 1 discloses a method of laminating interleaving paper on a glass plate. In this method, the step of stacking the interleaving paper on the glass plates (packing step) when assembling the glass plate laminated body is performed by, for example, using a handling device having a suction pad to stack the interleaving paper and the glass plates on an obliquely vertically stacked pallet. are alternately adsorbed and laminated (see paragraph 0021 and FIG. 1 of the same document).

When the interleaving paper is superimposed on the glass plate, the edge (for example, the upper edge) protrudes from the edge (upper edge) of the glass plate (see FIG. 1 of the same document). As a result, the interleaving paper reliably covers the edge of the glass plate and prevents foreign matter from coming into contact with the edge of the glass plate.

Moreover, Patent Literature 1 discloses a step of removing interleaving paper from a glass plate laminate. In this removing step, the interleaving paper is sucked and removed from the glass plate laminate placed on the pallet by the suction pad of the handling device. Thereafter, the handling device causes the suction pad to adhere to the glass plate, and removes the glass plate from the pallet. (See paragraph 0025 and FIG. 2 of the same document)

WO2015/012095

When a glass plate package is manufactured by stacking glass plates and interleaving paper on a pallet in a vertical position as in the past, for example, in the interleaving paper, a portion protruding from the edge of the glass plate falls forward or backward. , there was a case where a bending habit occurred. If the ends of a large number of interleaving papers are deformed in this manner, it may become difficult to separate the interleaving papers sucked by the suction pads from the glass plates in the process of removing the glass plates from the pallet, making it difficult to remove the glass plates. rice field.

Then, this invention makes it a technical subject to suppress deformation|transformation of the edge part of the interleaving paper in a glass plate package.

The present invention is intended to solve the above problems, and in a method for manufacturing a glass plate package including a packing step of loading a glass plate and an interleaving paper on a pallet, in the packing step, the end portion of the interleaving paper The glass plate and the interleaving paper are loaded on the pallet so that the moisture protrudes from the end of the glass plate, and a management step of managing the moisture content of the interleaving paper is provided before the packing step. Characterized by

According to such a configuration, by managing the moisture content of the interleaving paper in the management process, it is possible to suppress deformation of the edge of the interleaving paper after the packing process as much as possible.

In the managing step, the slip sheet may be managed in a humidity-controlled space, and the humidity in the controlled space may be 50 to 60%. This makes it possible to moderately adjust the moisture content of the interleaving paper.

In the managing step, the slip sheet may be managed in a temperature-controlled space, and the temperature in the controlled space may be 17 to 25°C. This makes it possible to moderately adjust the moisture content of the interleaving paper.

In the management step, the interleaving paper may be managed in the management space for 10 to 30 hours. This makes it possible to moderately adjust the moisture content of the interleaving paper.

In the controlling step, the interleaving paper may be managed such that the moisture content on the surface of the interleaving paper is 2 to 7%. This makes it possible to suppress deformation of the edge of the interleaving paper as much as possible after the packing process.

The present invention relates to a glass plate package formed by stacking glass plates and interleaving paper on a pallet, wherein the interleaving paper and the glass plate are arranged such that the end of the interleaving paper protrudes from the end of the glass plate. Secondly, the interleaving paper is loaded on the pallet, and the moisture content of the surface of the interleaving paper is 2 to 7%.

According to such a configuration, by setting the moisture content of the interleaving paper in the glass plate package to 2 to 7%, it is possible to suppress deformation of the end portion of the interleaving paper as much as possible.

ADVANTAGE OF THE INVENTION According to this invention, the deformation|transformation of the edge part of the interleaving paper in a glass plate package can be suppressed.

It is a top view which shows the manufacturing apparatus of a glass plate package. It is a side view which shows the manufacturing apparatus of a glass plate package. It is a perspective view which shows the aspect of transfer of the glass plate by a transfer apparatus. FIG. 3 is a side view showing a slip sheet supply device and a management section; It is a side view which shows a loading device. It is a flowchart which shows the manufacturing method of a glass plate package. 4 is a flow chart showing a part of a slip sheet supply process;

EMBODIMENT OF THE INVENTION Hereinafter, the form for implementing this invention is demonstrated, referring drawings.

1 to 5 show a manufacturing apparatus used in a method for manufacturing a glass plate package. The manufacturing apparatus 1 alternately stacks a plurality of glass plates G and interleaving paper IP and stacks them on a pallet P to form a glass plate package PB. The glass sheet G to be packed is configured in a rectangular shape with a thickness of 0.1 mm to 1 mm, but the dimensions and shape of the glass sheet G are not limited to those of this embodiment. The glass plate G has a first principal surface Ga and a second principal surface Gb, which are opposite to each other, and an end portion Gc.

The interleaving paper IP is configured in a rectangular shape having an area larger than that of the glass plate G. As shown in FIG. As the interleaving paper IP, those made of pulp, synthetic fiber, inorganic fiber, or the like are preferably used. The shape, material and structure of the interleaving paper IP are not limited to those of this embodiment.

The pallet P can support a plurality of glass sheets G in a vertical posture (tilted posture). The pallet P has a side surface SS that supports the surface (first main surface Ga) of the glass sheet G in a vertical position, and a bottom surface BS that supports the lower end of the glass sheet G. As shown in FIG.

As shown in FIGS. 2 and 5, the side surface SS of the pallet P is inclined at a predetermined angle (for example, 1° to 60°) with respect to the vertical direction (Z-axis direction). The side surface SS is configured, for example, in a rectangular shape, but is not limited to this shape. The bottom surface BS of the pallet P is inclined at a predetermined angle with respect to the horizontal direction (Y-axis direction). The angle formed by the bottom surface BS and the side surface SS is approximately 90°, but is not limited to this aspect.

As shown in FIGS. 1 and 2, the manufacturing apparatus 1 includes a transport line 2 for transporting the glass sheets G, and the glass sheets G transported by the transport line 2 are loaded on a pallet P to form a glass sheet package PB. a packaging line 3 for forming.

The transport line 2 includes a conveyor 4 that transports the glass sheets G. As shown in FIG. The conveyor 4 comprises a supply station 5 from which the glass sheets G can be removed.

The conveyor 4 is composed of a floating conveyor, a roller conveyor, and other various conveyors. The levitation type conveyor includes a levitation part such as an air float that levitates the glass sheet G by ejecting air, and a feeding part such as a roller that contacts the edge of the glass sheet G and feeds the glass sheet G. have. The conveyor 4 aligns and conveys a plurality of glass plates G in a row.

In the transfer line 2, the glass plate G is inspected. The inspected glass sheets G are loaded on pallets P in the packing line 3 .

The packing line 3 includes a transfer device 6 that takes out the glass sheet G from the transport line 2, an interleaving paper supply device 7 that supplies interleaving paper IP, and a loading device 8 that loads the glass plate G and the interleaving paper IP on a pallet P. , a temporary storage unit 9 for temporarily storing the interleaving paper material roll R transported from the outside of the packing line 3, and a management unit 10 for managing the interleaving paper material roll R transported from the temporary storage unit 9. And prepare.

As shown in FIGS. 1 and 2, the transfer device 6 includes a base 11, guide rails 12 for guiding the base 11 so as to be able to linearly reciprocate, and a robot arm disposed on the base 11. 13 and.

The robot arm 13 has a multi-joint structure, and has a holding part 14 for holding the glass plate G at its tip. The holding portion 14 includes a body portion 15 and a plurality of suction pads 16 provided on the body portion 15 . The body portion 15 includes a plurality of columnar portions 17 arranged in parallel at intervals. The columnar portion 17 is hollow and each includes a plurality of suction pads 16 .

The robot arm 13 transfers the glass plate G held by the holding unit 14 from the supply station 5 of the transport line 2 to the supply position of the interleaving paper IP in the interleaving paper supply device 7 . At that time, as shown in FIG. It is possible to perform an operation (rotational operation) to change the orientation of the 2, the supply station 5 has a structure in which the suction pad 16 and the columnar portion 17 of the transfer device 6 can be inserted below the glass plate G. As shown in FIG.

As shown in FIGS. 1 and 4, the interleaving paper supply device 7 pulls out a belt-shaped interleaving paper IP0 from the interleaving paper raw material roll R, and cuts the belt-shaped interleaving paper IP0 into a predetermined size to form a sheet. to form an interleaving paper IP. The interleaving paper supply device 7 includes a supporting portion 18 for the interleaving paper raw material roll R, a feeding mechanism 19 , a cutter 20 , a conveying device 21 , and a placing station 22 .

The support portion 18 rotatably supports the shaft portion S of the interleaving paper base material roll R. As shown in FIG. The feed mechanism 19 includes a plurality of feed rollers 19a and pinch rollers 19b. The feeding mechanism 19 can feed the band-shaped interleaving paper IP0 pulled out from the interleaving paper raw material roll R supported by the support portion 18 toward the mounting station 22 by these rollers 19a and 19b.

The cutter 20 is arranged between the feeding mechanism 19 and the mounting station 22 . The cutter 20 cuts a portion of the strip-shaped interleaving paper IP<b>0 fed by the feeding mechanism 19 . As a result, a sheet-like interleaving paper IP is formed.

The conveying device 21 has a plurality of gripping portions (chucks) 21a that grip the edge portions IPa of the leaf-shaped interleaving paper IP. The gripping portion 21 a is configured to be reciprocally movable between the cutter 20 and the mounting station 22 . The gripping unit 21 a moves the gripped interleaving paper IP to the placement station 22 .

The mounting station 22 serves as a feeding position for the interleaving paper IP and a mounting position for the glass plate G transferred by the transfer device 6 . In the placing station 22, the glass plate G is superimposed on the sheet-shaped interleaving paper IP placed earlier.

As shown in FIGS. 1, 2, and 5, the loading device 8 includes a base 23, guide rails 24 for guiding the base 23 so as to be able to linearly reciprocate, and a robot mounted on the base 23. an arm 25; The robot arm 25 has a multi-joint structure, and has a holding part 26 for holding both the glass plate G and the interleaving paper IP at its tip.

The holding portion 26 includes a rectangular body portion 27 . The main body portion 27 is configured by a frame configured in a grid pattern. The body portion 27 includes a plurality of suction pads 28 that hold the glass plate G, and a clamp portion 29 that holds the interleaving paper IP.

Each suction pad 28 is provided on one surface of the main body portion 27 at predetermined intervals, and adheres to the surface (for example, the second main surface Gb) of the glass plate G overlaid on the interleaving paper IP. The clamp unit 29 holds the interleaving paper IP placed on the placing station 22 by gripping the end portion IPa of the interleaving paper IP. The clamp portion 29 is supported by a support frame fixed to the body portion 27 .

The temporary storage unit 9 is for temporarily storing the interleaving paper base material roll R accommodated in a container 30 such as a wooden box. In the temporary storage unit 9 , the slip-sheet raw material roll R is taken out from the container 30 . After that, the slip-sheet source material roll R is placed on the carriage 31 for transportation.

The management unit 10 manages the slip-sheet raw material roll R before being supplied to the slip-sheet supply device 7 . The interleaving paper material roll R conveyed from the temporary storage unit 9 is stored in the managing unit 10 while being placed on the carriage 31 .

The management unit 10 is configured by a clean room or the like equipped with an air conditioning system. For example, when the manufacturing apparatus 1 itself is installed in a clean room, the management section 10 may be provided in a part of it. The management unit 10 has a controlled space 32 in which humidity and temperature are controlled. The controlled space 32 is set to a predetermined humidity and temperature by an air conditioning system. A plurality of slip-sheet base material rolls R can be accommodated in the management space 32 .

In the controlled space 32, a device (not shown) for measuring the humidity and temperature of the controlled space 32, and a measuring device for measuring the moisture content of the surface of the interleaving material roll R (strip-shaped interleaving paper IP0 on the outer peripheral surface) 33 are deployed (see FIGS. 1 and 4). As the measuring device 33, for example, a moisture meter MR-200II manufactured by Sanko Electronics Laboratory Co., Ltd. is preferably used.

Hereinafter, a method for manufacturing the glass plate package PB using the manufacturing apparatus 1 having the above configuration will be described.

As shown in FIG. 6, the method includes a glass plate conveying step S1, a transfer step S2, a packing step S3, and a package conveying step S4.

In the glass plate conveying step S1, the glass plate G undergoes a predetermined inspection while being conveyed by the conveyor 4 of the conveying line 2. As shown in FIG. In the present embodiment, the first main surface Ga of the glass plate G is the quality assurance surface (product surface), and in the glass plate conveying step S1, the first main surface Ga faces upward. be transported.

While the glass sheet G is conveyed by the conveyor 4, the positions and number of defects on its surface (first main surface Ga) and inside are detected. In the glass plate conveying step S<b>1 , the conveyor 4 places the inspected glass plate G on the supply station 5 .

In the transfer step S2, the interleaving paper IP is supplied to the mounting station 22 of the interleaving paper supply device 7 (interleaving paper supply step). In the interleaving paper supply step, the interleaving paper supply device 7 places the sheet-shaped interleaving paper IP cut out from the interleaving paper raw material roll R by the cutter 20 on the placing station 22 by the conveying device 21 .

The transfer device 6 holds the glass plate G placed in the supply station 5 by the holding part 14 and transfers it to the placement station 22 . As a result, the glass sheet G is superimposed on the interleaving paper IP previously installed on the placing station 22 . The first main surface Ga of the glass plate G is in contact with the interleaving paper IP. In this case, a part of the edge portion IPa of the interleaving paper IP protrudes from the edge portion Gc of the glass plate G. As shown in FIG.

The interleaving paper supply process described above is performed in parallel with the transfer process S2. As shown in FIG. 7, the interleaving paper supply process includes an unpacking process S11, a management process S12, and a roll supply process S13.

In the unpacking step S<b>11 , the interleaving paper material roll R stored in the temporary storage section 9 is taken out from the container 30 . After that, the slip-sheet source material roll R is placed on the carriage 31 and carried into the management space 32 of the management section 10 .

In the management step S12, the humidity of the management space 32 is adjusted so that the moisture content of the surface of the interleaving paper material roll R is within a predetermined numerical range while the interleaving paper material roll R is mounted on the carriage 31 . and temperature control.

The humidity (relative humidity) of the managed space 32 is preferably 50 to 60%, for example. The temperature of the controlled space 32 is preferably set to 17 to 25° C., for example. The humidity and temperature of the controlled space 32 are preferably maintained constant. It is preferable that the time for which the slip-sheet base material roll R is managed in the management space 32 is 10 to 30 hours.

In the management step S12, the moisture content of the surface of the interleaf base material roll R is measured by the measuring device 33 (measuring step). In the management step S12, the slip-sheet base material roll R is managed within the management space 32 so that the moisture content of the surface (peripheral surface) thereof is within the range of 2 to 7%.

When the remaining interleaving paper IP0 of the interleaving paper raw material roll R in the interleaving paper supply device 7 becomes small, the roll supply step S13 is executed. In the roll supply step S<b>13 , the interleaving paper base material roll R whose moisture content is adjusted in the management space 32 is supplied to the interleaving paper supply device 7 . The slip-sheet source material roll R is transported from the management unit 10 to the slip-sheet supply device 7 while being placed on the carriage 31 . In this case, the shaft portion S is inserted in the central portion of the slip-sheet base material roll R. As shown in FIG.

Further, the interleaving paper base material roll R conveyed to a position near the interleaving paper supply device 7 is lifted by a lifting device such as a hoist and mounted on the interleaving paper supply device 7 .

In addition, it is not limited to the above aspect, and for example, when the management space 32 is provided in the vicinity of the interleaving paper supply device 7, the interleaving paper raw material roll R accommodated in the management space 32 is lifted by the lifting device. After being lifted by the interleaving paper base material roll R, the interleaving paper source material roll R may be moved without using the carriage 31 and mounted on the interleaving paper supply device 7 .

In the packing step S<b>3 , the loading device 8 holds the glass plate G and the interleaving paper IP placed on the loading station 22 by the holding part 26 of the robot arm 25 and transfers them to the loading station 34 .

Specifically, the loading device 8 places the holding part 26 above the mounting station 22 by the operation of the robot arm 25 , lowers the holding part 26 , and moves the suction pad 28 to the second position of the glass plate G. Principal surface Gb is attracted. Further, the stacking device 8 causes the clamp portion 29 of the holding portion 26 to grip the end portion IPa of the interleaving paper IP. As a result, the glass plate G and the interleaving paper IP superimposed on the mounting station 22 are held by the holding portion 26 .

The loading device 8 then drives the robot arm 25 to move the holder 26 to the loading station 34 . The stacking device 8 brings the holding part 26 closer to the side surface SS and the bottom surface BS of the pallet P, and releases the suction of the glass sheet G by the suction pad 28 and the gripping of the interleaving paper IP by the clamp part 29 . As a result, the first glass plate G is placed on the pallet P together with the interleaving paper IP (see FIG. 5).

After that, the robot arm 25 holds the second glass plate G and the interleaving paper IP placed on the placing station 22, and places the second glass plate G on the pallet P. It is loaded on the second glass plate G. When a predetermined number of glass plates G are loaded on the pallet P, the packing step S3 is completed, and a glass plate package PB is formed by alternately laminating a plurality of glass plates G and interleaving paper IP on the pallet P. .

In this case, the edges IPa (the side edges and the top edge) of the interleaving paper IP protrude from the edges Gc of the glass plate G. As shown in FIG. The length of the portion of the interleaving paper IP protruding from the glass plate G is preferably 50 to 80 mm.

In the package conveying step S4, the glass plate package PB is carried outside through a package conveying path (not shown). The glass plate package PB is unloaded using transport means such as a hand lifter, a forklift, and an automatic guided vehicle (AGV).

A new empty pallet P is carried in to the loading station 34 from which the glass plate package PB has been carried out (pallet supply step).

The present inventor examined the cause of deformation such as a curl in the portion of the interleaving paper IP protruding from the end portion Gc of the glass plate G in the glass plate package PB. As a result of extensive studies, the inventors of the present invention have found that the higher the moisture content of the surface of the interleaving paper IP, the easier it is to deform. Specifically, it was found that when the moisture content of the surface of the interleaving paper IP was 8% or more, the interleaving paper IP was partially deformed.

For this reason, in the management step S12, the interleaving paper base material roll R is managed in the management space 32 of the management unit 10 where the humidity and temperature are controlled, and the moisture content thereof is set to 7% or less, preferably 2 to 7%. By doing so, it became possible to suppress the deformation of the end portion IPa of the interleaving paper IP in the glass plate package PB.

In addition, if the moisture content of the interleaving paper IP is too high, there is a risk that the interleaving paper IP will break when it is transported by the transport device 21. Therefore, it was possible to prevent the breakage. If the moisture content of the interleaving paper IP is too high, wrinkles may occur in the interleaving paper IP. It has become possible to suppress the occurrence of wrinkles in the IP.

Furthermore, if the moisture content of the interleaving paper IP is too low, it may be necessary to excessively adjust the humidity and temperature of the management unit 10 in order to manage the moisture content. The interleaving paper IP may get caught on the components of the supply device 7 or the like.

In addition, the present invention is not limited to the configuration of the above-described embodiment, nor is it limited to the above-described effects. Various modifications can be made to the present invention without departing from the gist of the present invention.

In the above-described embodiment, the management step S12 for managing the slip-sheet raw material roll R within the management space 32 was illustrated, but the present invention is not limited to this embodiment. In the management step S<b>12 , the sheet-shaped interleaving paper IP may be directly managed within the management space 32 .

In the above-described embodiment, an example of controlling the moisture content of the surface of the slip-sheet base material roll R by adjusting the humidity and temperature of the management space 32 was shown, but the present invention is not limited to this aspect. For example, a heating device is provided in the vicinity of the interleaving paper supply device 7, and the interleaving paper source material roll R is heated by the heating device, and the interleaving paper source material roll R is heated by the heating device. You may adjust the moisture content of. Alternatively, the moisture content may be adjusted by heating the rollers 19a and 19b of the feeding mechanism 19 and bringing the strip-shaped interleaving paper IP0 into contact with the rollers 19a and 19b.

In the above embodiment, the glass plate G is superimposed on the interleaving paper IP, but the interleaving paper IP may be superimposed on the glass plate G, and the interleaving paper IP and the glass plate G are individually supplied to the pallet P. You may

In the above-described embodiment, the interleaving paper IP protrudes from three sides of the glass plate G as shown in FIG.

32 Management space G Glass plate Gc End of glass plate IP Interleaving paper IPa End of interleaving paper P Pallet PB Glass plate package S3 Packing process S12 Control process

Claims (6)

In a method for manufacturing a glass plate package including a packing step of loading glass plates and interleaving paper on a pallet,
In the packing step, the glass plate and the interleaving paper are stacked on the pallet so that the end of the interleaving paper protrudes from the end of the glass plate;
A method for manufacturing a glass plate package, comprising a control step of controlling the moisture content of the interleaving paper before the packing step. In the management step, the interleaving paper is managed in a humidity-controlled space,
2. The method for manufacturing a glass plate package according to claim 1, wherein the humidity in the controlled space is 50 to 60%. In the management step, the interleaving paper is managed in a temperature-controlled space,
3. The method for manufacturing a glass plate package according to 1 or 2, wherein the temperature in the controlled space is 17 to 25°C. 4. The method for manufacturing a glass plate package according to claim 2, wherein in the management step, the interleaving paper is managed in the management space for 10 to 30 hours. The method for manufacturing a glass plate package according to any one of claims 1 to 4, wherein in the managing step, the interleaving paper is managed so that the moisture content on the surface of the interleaving paper is 2 to 7%. In a glass plate package formed by loading glass plates and interleaving paper on a pallet,
The interleaving paper and the glass plate are loaded on the pallet so that the end of the interleaving paper protrudes from the end of the glass plate,
A glass plate package, wherein the interleaving paper has a surface moisture content of 2 to 7%.

Images