JP3189108B2 - Single sheet laminating method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method in which a very thin colorless transparent, colored transparent plastic film or the like is adhered to a printed cardboard or the like, for example, a sheet cut for a carton, and peeped into the carton. The present invention relates to a method for laminating a single sheet, which enables formation of windows for use.

[0002]

2. Description of the Related Art A number of laminating apparatuses and laminating methods using the same have been developed. Generally, there are an in-line laminating method and an off-line laminating method. Also, forming an adhesive layer on the film side, as a laminating method for forming a window or the like on a single sheet,
It is unsuitable because the adhesive is exposed on the film part which becomes the window.

[0003] For this purpose, the present invention provides a laminating method for forming an adhesive layer on a single-sheet sheet, but the conventional laminating method for forming an adhesive layer on a single-sheet sheet involves cutting to a predetermined size. The sheet is conveyed from a sheet discharge device that discharges the fed sheet to a pair of holding rollers arranged vertically at regular intervals, and the holding roller conveys the sheet to an adhesive application device and a drying device, and the bonding is performed. It is mounted on a belt-conveyor-type transport line in which mesh fabric is stretched on an endless belt to pass through an agent application device and a drying device.

[0004] However, the sheet passing through the holding roller is conveyed in a state in which the widths of the front and rear ends are slightly laminated as shown in FIG. After applying the adhesive, it is necessary to dry the adhesive somewhat, and a drying step is performed in the drying apparatus. However, a shift occurs in the transport direction while passing through the drying apparatus. As shown in FIG. 4 (b), a gap is usually formed between the sheet and the next sheet.

[0005] For this reason, the cutting of the web-like film after the laminating process has to be cut using a heat cutter that cuts by pressing a heat ray.
The flow of the film temporarily stops, and there is a limit to increase the speed.In addition, a sheet sheet in which the surplus film is cut to a predetermined size to be stored in the sheet storage device after cutting. There has been such a problem that the sheet is protruded, cut, or warped, and must be stored in the sheet storage device by hand.

[0006]

An object of the present invention is to solve the above-mentioned problems. In a method of laminating a single sheet cut to a predetermined size, a web-like sheet is conveyed to a single sheet conveyed on a conveying line. When laminating by laminating films, it is possible to cut the film using a rotary cutter so that lamination can be performed with a slight width of each edge of the front and rear sheet sheets laminated. It is an object of the present invention to provide a laminated processing method.

[0007]

According to the structure of the present invention, the sheet is passed through a sheet unloading device for unloading a single sheet cut to a predetermined size, a pair of holding rollers arranged vertically, an adhesive coating device and a drying device. And a pair of adjusting rollers disposed vertically above and below the transport line, a film supply device for supplying the film, and laminating and laminating the sheet and the film coated with the adhesive. The configuration includes a pair of pressure rollers for processing, a rotary cutter for cutting an inclined film, and a sheet storage device for stacking and storing single sheets.

[0008]

According to the present invention, a pair of holding rollers disposed vertically on the carry-in side of the transfer line and a pair of adjusting rollers disposed vertically on the carry-out side of the transfer line are each composed of an upper roller. By shifting the axis in the sheet conveyance direction from the axis of each lower roller, when each sheet is pinched and conveyed by each roller, the front and rear edges of the front and rear sheet are slightly shifted. The width is stacked and the conveying speed of the holding roller and the adjusting roller is synchronized, so that the flow of the single sheet is constantly constant, and the front and rear sheet during conveyance on the conveyance line are separated. Even if the width of each side is slightly laminated by the adjustment roller again, lamination can be performed, and the film is cut using a rotary cutter that is arranged at an angle to the cutting of the film. That.

[0009]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram showing a first embodiment of the present invention;

FIG. 1 is a schematic explanatory view of a laminating apparatus used in the laminating method of the present invention, FIG. 2 is a side explanatory view showing a state of conveying a main sheet, and FIG. 3 is a rotary cutter section. FIG. 4B is a plan view of FIG.
(B) is an explanatory side view showing a state of the sheet being conveyed.

The present invention relates to, for example, printed cardboard and the like.
An extremely thin colorless and transparent, colored and transparent plastic film 9 is stuck to the sheet 1 cut for a carton to form a peeping window or the like in a carton or the like. Related to the laminating method,
A sheet unloading device 2 for continuously unloading a single sheet 1 cut to a predetermined size, and a transfer line 6 for transferring the single sheet 1
Pair of holding rollers 3a. 3b, a transport line 6 for passing the adhesive coating device 4 and the drying device 5, and a pair of adjusting rollers 7a. 7b, a film supply device 10 that rotatably supports and supplies the wound web-like film 9, and the sheet 9 coated with the adhesive and the film 9 are laminated and laminated. A pair of pressure rollers 8a. 8b
A rotary cutter 11 for cutting the laminated film 9, which is arranged to be inclined with respect to the flow direction A of the film 9, and a sheet storage device 12 for stacking and storing the cut single sheets 1. In the laminating method using a laminating apparatus, the transfer line 6
A pair of holding rollers 3a. 3b and a pair of adjusting rollers 7a. 7b are the respective upper rollers 3a. 7a to the lower rollers 3b. 7b to the sheet discharge side from the axis of the holding roller 3a. 3b and the adjusting rollers 7a. 7b and the rotary cutter 1
A processing method of cutting the film 9 at right angles to the flow direction A by apparently synchronizing the speed of the film 9 in the flow direction A of the blade 1 and the flow speed of the film 9 and the sheet 1 after lamination. It is.

That is, a laminating apparatus for carrying out the laminating method of the present invention is a sheet-like sheet 1 of expanded cardboard or the like cut into a predetermined size by a die cutting process such as a press for producing a carton or the like. Together with the
A pair of holding rollers 3a. 3b, the pair of holding rollers 3a. A stopper (not shown) is provided to hold the sheet 3b at a constant interval. The stopper protrudes and disappears from the horizontal plane of the flow of the sheet 1, and the sheet 1 flows. The single sheet 1 passes through the upper surface by projecting to the surface and stopping by contacting the lower surface.

The pair of holding rollers 3a. 3b are disposed vertically, and furthermore, the axis of the upper gripping roller 3a is shifted in the sheet feeding direction A from the axis of the lower gripping roller 3b, that is, the arrow direction A in the case of FIG. In this state, the sheet 1 is pinched and each of the holding rollers 3a. 3b, the sheet is conveyed while being pinched. As shown in FIG. 2, most of the sheet 1 is held by the holding rollers 3a. 3
b, the width of the rear end side 1a is slightly raised, and the next sheet 1 conveyed by the feed roller 2a of the sheet unloading device 2 is released by moving the stopper downward in this state. A slight width of the leading edge 1b of the next sheet 1 intrudes below the trailing edge 1a of the preceding sheet 1 and the front and rear edge 1 of each sheet 1.1.
a. 1b is slightly laminated in width.

Next, the sheet 1 is applied to the adhesive applying device 4.
The adhesive is applied by being conveyed to the drying apparatus, but it is necessary to dry the adhesive somewhat. The adhesive is composed of a feed conveyor or the like in which a mesh material is stretched between two endless belts for passing through the drying device 5. It is transported to the transport line 6.

The sheet 1 conveyed by the conveying line 6 through the drying device 5 is provided with a pair of adjusting rollers 7a. 7b, which are pinched and transported by rotating the adjusting rollers 7a.
7b, the axis of the upper adjustment roller 7a is shifted from the axis of the lower adjustment roller 7b in the sheet feeding direction, that is, to the right in the case shown in FIG. The sheet 1 is conveyed from the conveying line 6, and a slight width of the leading edge 1b of the sheet 1 enters under the rear edge 1a of the front sheet 1, and as shown in FIG. Front and rear end sides 1a. Of leaf sheet 1.1. Roller 3a. 3b.

Next, the film 9 from the film supply device 10 for rotatably supporting and supplying the wound web-like film 9 and the adjusting rollers 7a. 7b conveyed from the front and rear ends 1a. 1b is stacked with each sheet 1.1 slightly laminated with a width, and a pair of rubber rollers 8c.
8d via a pair of pressure rollers 8a. 8b and are sequentially laminated.

After lamination, the film 9 laminated on the single sheet 1 is cut by a rotary cutter 11. The rotary cutter 11 is arranged to be inclined with respect to the flow direction A of the film 9. The rotary cutter 11 is, as is well known,
A rotating shaft is provided at both ends, a belt is wound around the rotating shaft, and blades are protruded at several positions of the belt. The blade moves by the rotation of the belt, and cuts the film 9.

According to the present invention, there is provided a laminating method using the above-mentioned laminating apparatus, wherein a pair of holding rollers 3a. 3b and a pair of adjusting rollers 7a. 7b with the respective upper rollers 3a. 7a with the lower roller 3
b. 7b is shifted from the axis of the sheet to the sheet discharge side and the holding rollers 3a. 3b and adjusting rollers 7a. 7b is synchronized with the transport speed.

That is, the holding rollers 3a. 3b and adjusting rollers 7a. 7b, the front and rear edges 1a. 1b
Is slightly laminated, and in addition, the holding rollers 3a. 3
b and adjusting rollers 7a. 7b, the conveyed sheet 1 and the conveyed sheet 1 are constantly constant, and the distance between the previous sheet 1 and the next sheet 1 becomes constant. It is not separated.

That is, the interval between the previous sheet 1 and the next sheet 1 is not separated, and the rotary cutter 1
1, the rotary cutter 11 is disposed so as to be inclined with respect to the flow direction of the film 9, and the speed of the flow of the film 9 of the blade of the rotary cutter 11 and the film 9 after lamination And the cutting position of the film 9 is stopped. In this state, the film is perpendicular to the flow direction A of the film 9. 9 can be cut without cutting off the flow of the sheet 1 temporarily, and the cut sheet 1 is stored in the sheet storage device 12 sequentially. Is what is done.

[0021]

As described above, the present invention relates to a sheet discharging device for discharging a single sheet cut to a predetermined size, a pair of upper and lower holding rollers, an adhesive coating device and a drying device. And a pair of adjusting rollers disposed vertically above and below the transport line,
A film supply device for supplying a film, a pair of pressure rollers for laminating and laminating a single sheet and a film coated with an adhesive, and a film disposed at an angle to the flow direction of the film. By using a laminating device equipped with a rotary cutter for cutting and a sheet storage device for stacking and storing the single sheets, by shifting the respective axes of the holding roller and the adjusting roller, the sheet sheet to be carried in and With the sheet to be carried out, a rotary cutter can be used because the width of the front and rear edges of the front and rear sheet is slightly laminated constantly, so that the sheet can be cut without stopping the flow of the sheet. It is possible to increase the speed, and furthermore, the shape of the sheet after lamination is constant,
By successively and smoothly storing the sheets in the sheet storage device, it becomes possible to automate the line without the need for a person to monitor, and to achieve a significant effect with high efficiency and extremely high contribution.

[Brief description of the drawings]

FIG. 1 is a schematic explanatory view of a laminating apparatus used for a laminating method of the present invention.

FIG. 2 is an explanatory side view showing a state in which a main sheet is conveyed.

FIG. 3 is a plan view of a rotary cutter unit.

FIGS. 4A and 4B are explanatory side views showing a state of a single sheet being conveyed;

[Explanation of symbols]

 Reference Signs List 1 single sheet 1a single sheet rear end side 1b single sheet front end side 2 sheet unloading device 2a feed roller 3a upper holding roller 3b lower holding roller 4 adhesive coating device 5 drying device 6 transport line 7a upper adjustment roller 7b lower Side adjustment roller 8a Upper pressure roller 8b Lower pressure roller 8c Rubber roller 8d Rubber roller 9 Film 10 Film supply device 11 Rotary cutter 12 Sheet storage device A Flow direction

Claims (1)

(57) [Claims] 1. A sheet discharging device for continuously discharging sheet sheets cut to a predetermined size, and a pair of holding rollers vertically disposed together with a stopper for conveying the sheet sheets to a conveying line. A conveying line for passing through the adhesive application device and the drying device, a pair of adjusting rollers disposed in the vicinity of the conveying line and arranged vertically, and rotatably supporting the wound web-shaped film. A film supply device for supplying, a pair of pressure rollers for stacking and laminating a sheet and a film coated with the adhesive, and the laminating process arranged to be inclined with respect to the flow direction of the film Laminating method using a laminating device equipped with a rotary cutter that cuts the film after and a sheet storage device that stores and stacks the sheet sheets after cutting. The pair of holding rollers provided on the carry-in side of the transfer line and disposed vertically, and the pair of adjustment rollers provided on the carry-out side of the transfer line and disposed vertically, respectively, have respective axes of the upper rollers. The roller is shifted from the axis of the lower roller to the sheet discharge side, and the conveyance speed of the holding roller and the adjusting roller is synchronized, and the speed of the film flow direction of the film after laminating with the speed in the film flow direction of the rotary cutter blade. A laminating method for a single sheet, characterized in that the film is cut at right angles to the flow direction of the film while apparently synchronized with the speed.