JP2782663B2 - Method and apparatus for tailoring unwrapping of paper - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a method and an apparatus for performing unpacking of a web used for a rotary printing press, a coater, a laminator and the like, and tailoring in preparation for splicing. The term "paper" used in the present specification is not limited to paper having a strict meaning, but includes a film, a sheet, and the like.

[Conventional technology]

Generally, a web used for a rotary printing press is transported with its peripheral surface and both end surfaces wrapped in a packing material. In order to put the packed web on a rotary printing press, first, the packing material on both end surfaces of the web package is removed, and then the packaging material on the peripheral surface is removed. After that, the surface layer paper is unwound from the web, and the paper is cut into an appropriate shape (eg, V-shape) to form a paper edge, an adhesive layer is formed on the paper edge, and then the paper edge is wound on the web. The paper is rewound upward and is temporarily fixed to the surface of the web using a non-raveling tab.

As an apparatus for automating these operations, an apparatus for removing a packing material from an end face of a package has been proposed in Japanese Patent Application Laid-Open No. 1-1103293. In addition, a device for removing the packing material on the peripheral surface of the packing body was developed by the present applicant first, and is disclosed in Japanese Patent Application No. 1-89117.
And Japanese Patent Application No. 1-142635.

Regarding tailoring, a series of operations, such as cutting the surface layer of the web, feeding out the surface layer, cutting the tip, applying double-sided tape, stacking the cut-off surface layer paper, attaching the unraveling tab to the tip of the web, etc. Equipment has been developed,
It is used in newspaper companies and the like (for example, see "Newspaper Printing Technology", 1987-1, NO119, pp. 12-15, pp. 16-18).

[Problems to be solved by the invention]

In the above prior art, the unpacking of the packing material and the tailoring are performed by separate devices, respectively, so that a large space is required and the equipment cost is high, and the paper roll from the unpacking device to the tailoring device is also required. There is a problem that the operation of transporting the garbage is required.

Furthermore, since the unpacking process and the tailoring process are performed separately, there is a problem that the cycle time required from unpacking to the end of the tailing becomes long.

SUMMARY OF THE INVENTION The present invention has been made in view of such a problem.
An object of the present invention is to provide a method and an apparatus for unpacking and unwrapping a web, which can efficiently remove the packaging material on the peripheral surface and tailor the web.

[Means for solving the problem]

The method for unwrapping and unwrapping a roll of the present invention is to prepare a roll of paper in which the packing material at both end portions of the roll is removed and only the peripheral surface is covered with the packing material. The paper on the surface of the web is peeled off from the web, and the paper on the surface of the web is fed out. Then, the fed paper is cut to form a paper edge. It is characterized in that an adhesive layer for splicing is formed, and then the end of the paper is rewound onto a paper roll and temporarily fixed to the surface of the paper roll.

In addition, a roll paper unpacking and tailoring device according to the present invention includes a roll paper holding device rotatably holding a roll paper package, a packing material on a peripheral surface of the roll paper package held by the roll paper holding device, and a paper on a roll surface layer portion. A cutting device that cuts the entire length of the shaft
A web rotating device for rotating the web package held by the web holding device in both forward and reverse directions, a scrap paper accumulating device for accumulating a packing material fed from the rotating web package and paper on the web surface layer portion; It has means for cutting the surface layer paper fed from the web to form a paper end and forming an adhesive layer for splicing at the paper end, and means for attaching a tab for preventing loosening to the paper end. It is characterized by the following.

The apparatus for unwinding and tailoring the rolled paper further includes means for displacing the package on the peripheral surface of the rolled paper package and the paper on the surface of the rolled paper in the axial direction with respect to the rolled paper. It is preferable to provide a wedge-shaped cutting device which is inserted between the shifted paper surface layer of the web and the underlying unshifted web surface and is moved in the axial direction of the web.

[Action]

In the above method and apparatus of the present invention, by cutting the peripheral surface of the rolled paper package in the axial direction, the packaging material on the peripheral surface and the paper on the surface layer of the rolled paper can be simultaneously cut over the entire axial length, Thereafter, by rotating the rolled paper package, the cut packaging material and the paper on the rolled paper surface layer can be separated from the rolled paper and the paper on the rolled paper surface layer can be fed out. For this reason, the removal of the packing material and the feeding operation of the paper on the surface layer of the web can be performed in parallel. After that,
By cutting the leading end paper, forming an adhesive layer, rewinding the paper to the surface of the paper roll, and temporarily fixing the paper, the tailoring of the paper roll can be performed.

Here, if a means is provided for axially displacing the packaging material on the peripheral surface of the rolled paper package and the paper on the surface layer of the rolled paper in the axial direction with respect to the rolled paper, the packaging material on the peripheral surface and the rolled paper will be used when cutting the rolled paper peripheral surface. The paper on the surface can be displaced in the axial direction, and a wedge-shaped incision is inserted between the displaced paper on the surface of the web and the unrolled surface of the web below, and inserts it into the axis of the web. By moving in the direction, the paper and the packing material thereon can be reliably cut without cutting the paper under the wedge-shaped cutting device.

〔Example〕

Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings.

FIG. 1 is a side sectional view schematically showing one embodiment of the present invention,
FIG. 2 is a schematic plan view, and 1 is a roll paper package to be processed. This roll paper package 1 is made up of a roll paper 2 and a packing material 3 covering the peripheral surface thereof, and the packing material on the end face has been removed in the previous step. Reference numeral 5 denotes a self-propelled transport carriage that transports the rolled paper package 1 thereon. Reference numeral 6 denotes a pair of support rollers, which are held by a lift table 9 arranged in a recess 8 formed on the floor surface 7 so as to be able to move up and down. The pair of support rollers 6 are arranged at an interval so that the carrier 5 can pass between them. Thus, with the support roller 6 lowered, the carrier 5 carrying the web package 1 is fed between the pair of support rollers 6, and then the pair of support rollers 6 is raised. The web 1 can be placed, and the web package 1 or the web 2 on the support roller 6 can be loaded on the carrier 5 by the reverse operation. It should be noted that a conveyor may be arranged between the pair of support rollers 6 and the rolled paper package may be transported by the conveyor. A motor 10 is drivingly connected to one support roller 6.

In the vicinity of the support roller 6, a pair of chucking arms is provided.
12 a and 12 b are provided fixed to the support shaft 13. Support shaft 1
3 is held by a pair of side frames 14. The support shaft 13 can be rotated by a drive unit (not shown) at a certain angle in the forward and reverse directions, and the chucking arms 12a and 12b are moved to the positions indicated by the solid line and the two-dot chain line in FIG. It can be rotated. Note that the pair of chucking arms 12a and 12b do not necessarily need to rotate integrally, but may be configured to rotate both separately. A displacement generator 16 is attached to the tip of one chucking arm 12a. The displacement generating device 16 includes an air cylinder 17 and a chuck 18a rotatably attached to the tip of a piston rod. A web rotation device 19 is provided at the tip of the other chucking arm 12b. The web rotating device 19 includes a chuck 18b and a motor 20 for rotating the chuck 18b. The chucks 18a and 18b constitute a web-holding device for holding the web core of the web 2 from both sides, and the motor 20 is operated while the web 2 is held by the chucks 18a and 18b to rotate the web 2. Can be. Since one chuck 18a moves in the axial direction, the other chuck 18a moves in the axial direction.
8b may be configured not to move in the axial direction.
It is good also as a structure moved in an axial direction by an air cylinder.

A cutting device 21 is provided near the rolled paper package 1 held by the chucks 18a and 18b at the positions shown in FIGS. The cutting device 21 includes a pair of side frames.
A guide rod 22 and a feed screw 23 provided between the chucks 18a and 18b in parallel with the axis of the chuck 18a, 18b, a motor (not shown) for driving the feed screw 23, a guide rod 22 and a feed screw
It has a traveling body 24 held by 23, an air cylinder 25 held by the traveling body 24, and a wedge-shaped incision tool 26 attached to the tip of the piston rod. This wedge-shaped cutting tool 26
Has a flat surface 26a pressed against the web 2 and a cutting blade 26b inclined with respect to the flat surface 26a, as shown in FIGS. Thus, the wedge-shaped incisor 26
Is pressed against the surface of the web 2 and the traveling body 24 is run with the feed screw 23, so that the paper or packing material 3 on the surface layer above the web surface against which the wedge-shaped incision tool 26 is pressed is removed. The incision can be made over the entire length of the web. The guide rod 22, feed screw 23, etc.
Not only when it is attached to a pair of chucking arms 12
It is good also as a structure hold | maintained at a and 12b.

In FIGS. 1 and 2, a pressing device 28 is provided at a position in contact with the upper part of the rolled paper package 1 held by the pair of chucking arms 12a and 12b at the solid line position.
The pressing device 28 includes a pair of rollers 29, a pressing belt 30 stretched between the rollers, a motor (not shown) for driving one of the rollers 29, and the like.

Further, an inclined table 32 is provided diagonally below the contact portion between the take-up paper package 1 and the pressing device 28, and a waste paper collecting device 33 is provided at the lower end thereof. This waste paper stacker 33
Any material can be used as long as it can accumulate the packing material and the paper on the surface layer sent through the table 32, and preferably has a function of curling the sent waste paper into small pieces. Above the table 32, a V-shaped guide rail 35 is provided, on which a double-sided tape sticking and paper end cutting device 36 is movably held. A tab attaching device 37 is provided at the center. These double-sided tape sticking and paper edge cutting device 36 and tab sticking device 37
Since what is used for a known tailoring device can be used as it is, a detailed description is omitted.

Regarding the unpacking and tailoring device for web paper with the above configuration,
The operation will be described below.

In FIG. 1, the carrier 5 carrying the rolled paper package from which the packaging material at the end face has been removed travels and stops between the pair of support rollers 6. At this time, the pair of support rollers 6 are at the lowered position so as not to interfere with the rolled paper package on the carrier 5. In addition, a pair of chucking arms 12a, 12
b also waits at the upper position (solid line position) so as not to interfere with the roll paper package.

Next, the support roller 6 is raised by the lift of the elevator 9, and
As shown in FIG. 5, the roll paper package 1 is supported.

Next, the pair of chucking arms 12a and 12b descend,
The chucks 18a and 18b are positioned at the center position of the web.
Next, the air cylinder 17 of the shift generator 16 is operated to press the chuck 18a against the web 2, and press the web 2 in the axial direction. At this time, the opposite side chuck 18b is
The web 2 is movable toward the chuck 18b thereof. In this state, the support roller 6 rotates to rotate the roll paper package 1. By pushing the web 2 in the axial direction while rotating the web packaging 1 in this manner, an axial displacement occurs between the packaging material 3 and the web 2 as shown in FIG.

If the rotation and pushing of the end face are continued in this state, not only the packing material 3 but also one or two sheets 2a of the surface layer of the web 2 as shown in FIG. Comes out.

When this deviation is detected by a sensor (not shown), the rotation of the support roller 6, and therefore the rotation of the roll paper package 1, is stopped. Thereafter, the web package 1 is held by the chucks 18a and 18b on both sides.

After the web package 1 is held by the chucks 18a and 18b, the chucking arms 12a and 12b rotate upward to lift the web package 1 until the upper portion of the web package 1 contacts the pressing device 28. The state at this time is the state shown in FIG.

Next, the air cylinder 25 holding the wedge-shaped cutting tool 26 is operated, and the wedge-shaped cutting tool 26 is pressed against the outer peripheral surface of the end of the web 2 as shown in FIGS. 8A and 8B. Rotates to move the wedge-shaped cutting tool 26 in the axial direction of the web. At this time, together with the packing material 3, one or two sheets of paper 2a
When the wedge-shaped incision tool 26 travels, the tip of the wedge-shaped incision tool 26 enters the inside of the paper 2a on the surface layer where the wedge-shaped incision tool 26 has shifted, and as shown in FIG. 9, the paper 2a and the packing material outside the paper 2a. Incision 3 Thus, when the wedge-shaped cutting tool 26 travels over the entire length of the web 2, the packaging material 3 and one or two sheets 2a of the surface layer of the web are cut over the entire width.

Next, the web rotating device 19 is operated to rotate the web package 1 in the direction of arrow A in FIG. 1 and move the web package 1 slightly above the upper end 32a of the table 32 at the cutout portion. Rotate in the opposite direction (arrow B direction). At the same time, the pressing belt 30 of the pressing device 28 also runs in the direction of arrow C. As a result, as shown in FIG. 10, the cut packing material 3 and the paper 2a of the surface layer are sent out onto the table 32 with the cut portion as the head, and as shown in FIG. The paper is accumulated in the paper accumulation device 33. During the cutting operation of the packing material 3 and the paper on the surface layer and during the rotation of the roll paper package 1, the pressing device 28 is pressed against the upper surface of the roll paper 2, and
Since the cut packing material and the paper on the surface layer are pressed against the surface of the web 2, the cut packing material and the paper are not inadvertently peeled off from the web and fall down. Sent out on 32.

As the web 2 continues to rotate, the navy blue packaging material 3
The paper 2b from the web 2 is stored in the
Is pulled out. In this state, the rotation of the web 2 is stopped, and the paper 2b extending on the table 32 is fixed by vacuum suction or the like.

Thereafter, the double-sided tape sticking and paper edge cutting device 36 operates to cut the paper 3b into a V-shape, form a V-shaped paper edge as shown in FIG. The tab is attached to form an adhesive layer, and then a tab attaching device 37 attaches a non-raveling tab 41 to the center of the paper edge.

Unnecessary surface layer paper cut off by the packing material 3 and the paper edge cut is rounded down by a waste paper stacking device 33 provided at the lower end of the table, and is discharged to a predetermined place by a discharge device (not shown).

As shown in FIG. 12, after the double-sided tape 40 and the tab 41 are attached, the web 2 rotates again in the direction of the arrow A, and the paper 2b pulled out of the web 2 is pulled back onto the web 2 and is unraveled. Tab 41 is fixed to the outer peripheral surface of the web, and the end of the paper is stopped.

Thereafter, the chucking arms 12a and 12b are lowered to place the web 2 on the carrier 5. At this time, the support roller 6 has already been lowered.

Thereafter, as shown in FIG. 13, the transport carriage 5 carries the web 2 prepared for splicing and runs out of the apparatus, and transports the web 2 to a predetermined position.

By repeating the above operation, the removal of the package from the web package and the tailoring of the paper splicing are automatically performed one after another.

In the above embodiment, the packing material 3 and the paper 2a of the surface layer are cut only by the wedge-shaped incision tool 26. At this time, as shown in FIG. The rotating disk cutter 44 rotatably supported by the rotary disk cutter can be used together. The cutter 44 runs together with the wedge-shaped cutting device 26 and cuts the packing material 3 from the outside.

The incision by the wedge-shaped incision tool 26 can also be performed as shown in FIGS. In the example of FIG. 15, the wedge-shaped incision tool 26 is placed under the packing material 3 and the surface paper 2a that protrude from the end face of the web 2 due to the axial displacement, and the wedge-shaped incision tool 26 is moved rightward in the figure. Move. In the example shown in FIG. 16, the packing material 3 and the surface paper 2a protruding from the end face of the web are similarly gripped by the clamp 45 and pulled in the direction of the arrow.
The distal end of the wedge-shaped incision tool 26 is inserted into the resulting gap 46 and moved in the axial direction. Thereby, the packing material 3 and the paper 2a on the surface layer can be cut at the same time.

Further, in the above embodiment, as a method of displacing the packing material 3 and the paper of the surface layer of the web packaging body 1 in the axial direction, the web packaging body 1 is rotated on the support roller 6 and at the same time, the end face of the web is axially moved. 17 and instead of
This can be performed as shown in FIG. In the embodiment of FIG. 17, the support roller 6 is supported by a tiltable mount 48, and the mount 48 is tilted by a hydraulic cylinder 49. When the roll 1 is placed on the support roller 6 and the support roller 6 is rotated while the gantry 48 is inclined as shown in the figure, the roll 1 is rotated in an inclined state, and the roll 2 inside is gravity-lifted. Acts gradually on the packing material 3 to shift in the axial direction.
In the embodiment shown in FIG. 18, the roll paper package 1 is supported by the support shaft 51 at the tip of the chucking arm 50, and is rotated in the direction of the arrow. At the same time, the spiral roller 53 held by the arm 52 is brought into contact with the outer peripheral surface of the rolled paper package 1 and rotated in the direction of the arrow. The spiral of the spiral roller 53 exerts an axial force on the outer peripheral surface of the roll paper package 1 due to its rotation, whereby the packing material 3 and the paper on the surface layer are moved axially with respect to the roll paper 2 to cause a deviation. . The same effect can be obtained by rotating the belt obliquely instead of the spiral roller.

Further, in any of the above embodiments, when the package 3 and the surface layer paper of the roll paper package 1 are cut, the packing material 3 and the surface layer paper are displaced in the axial direction with respect to the roll paper 2 using a wedge-shaped cutting tool. The incision is made. Without cutting the web below the surface paper,
There is an advantage that the paper of the surface layer and the packing material 3 can be reliably cut. However, the present invention is not necessarily limited to this type of cutting, and other methods, for example, Japanese Patent Application No. Hei.
As proposed in No. 142635, it is also possible to use a method in which a part of the outer peripheral surface of the rolled paper package is removed by a small amount by shaving or punching.

In the above-described embodiment, the web packaging body 1 held by the chucks 18a and 18b is rotated by the chuck 18b, and the pressing belt 30 pressed against the web packaging body 1 is also driven. Only one of the body 1 and the holding belt 30 may be driven, and the other may be driven. However, when both are driven as in the embodiment, the feeding of the packing material 3 and the paper of the surface layer portion is ensured, which is preferable. The pressing device 28 may be configured to use a pressing roller instead of using the pressing belt 30.

Further, in the above-described embodiment, as the tailoring device, a type in which the web is fed onto a table and a double-sided tape is stuck thereon is used, but the table is not used, and the web is dropped in the air, or the double-sided tape is not used. Any type of tailoring device may be used without departing from the gist of the present invention, such as using glue.

In the above embodiment, the packaging material on the peripheral surface of the web is removed from the web packaging body after removing the packaging material on the end face, and tailing is performed on the paper end of the web. It is also possible to incorporate a device (for example, one disclosed in JP-A-1-103293) for removing the packing material at the end face of the rolled paper package into the example device. With this configuration,
With respect to the package body in which the peripheral surface and the end surface of the web are packed, it is possible to remove all the packaging materials and to tailor the web.

〔The invention's effect〕

As described above, according to the present invention, it is possible to cut out the packaging material on the peripheral surface of the rolled paper package and also cut the paper on the surface layer of the rolled paper. Since the paper can be fed out and tailoring can be performed on the paper, the necessary operations can be performed in comparison with the conventional case of cutting and removing the packaging material and then cutting and feeding the paper on the surface of the rolled paper. The cycle time can be greatly reduced, and the cycle time can be significantly reduced. Conventionally, two devices, a packing material removing device and a tailoring device, were required. However, according to the present invention, the packaging material can be removed and tailored by one device, so that the installation space of the device can be greatly reduced. Also, various effects such as reduction in the cost of the apparatus can be obtained.

[Brief description of the drawings]

FIG. 1 is a side sectional view schematically showing one embodiment of the present invention, FIG. 2 is a schematic plan view thereof, FIG. 3 is a schematic side view of a wedge-shaped incision tool used in the above embodiment, and FIG. Front view, Fig. 5,
FIG. 6 is a perspective view of a main part showing a step of giving a shift to the rolled paper package in the above apparatus, FIG. 7 is a schematic perspective view showing the state in which the surface layer of the rolled paper package is shifted, and FIG.
FIG. 8B is a schematic perspective view showing a state in which a wedge-shaped incision tool is pressed against the surface of the rolled paper package, FIG. 8B is a schematic sectional view thereof, and FIG.
The figure is a schematic perspective view showing a state in which the packing material of the rolled paper package and the paper of the surface layer are cut out. FIG. 10 is a perspective view showing a state where the packing material and the paper of the surface layer are fed out from the rolled paper onto the table.
Fig. 11 is a perspective view showing a state in which the paper on the surface layer has been fed out from the web onto the table, Fig. 12 is a perspective view showing a state in which the leading end of the web has been tailored, and Fig. 13 transports the tailored web. 14 and 15, a perspective view showing a state of being mounted on a trolley,
FIG. 16 is a cross-sectional view showing a modified example of the cutting of the paper of the packing material and the surface layer of the take-up paper, and FIGS. 17 and 18 are perspective views showing the modified examples of displacing the paper of the packaging material and the surface layer. . 1 ... wrapping paper package, 2 ... wrapping paper, 2a ... surface paper, 3
…… Packing material, 5… Transportation trolley, 6… Support roller, 12a, 12b…
… Chucking arm, 14 …… Side frame, 16 …… Shift generator, 17 …… Air cylinder, 18a, 18b …… Chuck,
19 ... web rotator, 20 ... motor, 22 ... guide rod, 23 ... feed screw, 24 ... traveling body, 25 ... air cylinder,
26 ... Wedge-shaped incision tool, 28 ... Holding device, 32 ... Table, 33
... waste paper stacking device, 36 ... double-sided tape sticking and paper edge cutting device, 37 ... tab sticking device.

Claims (3)

(57) [Claims] A packaging material is prepared by removing the packaging material at both end portions of the paper web and covering only the peripheral surface with the packaging material. The packaging material on the peripheral surface of the web packaging material and the paper on the surface layer of the web are fully wrapped. Cut through the length, peel off the cut packaging material and the paper on the surface of the web from the web, feed out the paper on the surface of the web, and then cut the fed paper to form a paper end and adhesive for splicing. A method for unpacking and unwinding a web, comprising forming a layer, then rewinding the paper edge onto the web, and temporarily fixing the paper to the web surface. 2. A web holding device for rotatably holding a web package, a packaging material on a peripheral surface of the web package held by the web holding device and a paper on a surface layer of the web being cut along the entire axial length. A cutting device; a web rotation device for rotating the web package held by the web holding device in both forward and reverse directions; and a waste paper stack for stacking the packaging material fed from the rotating web package and paper on the web surface layer. An apparatus, means for forming a paper edge by cutting a surface layer of paper unwound from the web and forming an adhesive layer for splicing on the paper edge, and attaching a tab for preventing loosening to the paper edge Means for unpacking and winding webs. 3. An apparatus according to claim 2, further comprising means for axially displacing the packaging material on the peripheral surface and the paper on the surface layer of the web with respect to the web. A paper web disengaging device, characterized in that the cutting device has a wedge-shaped cutting device inserted between the paper on the paper surface layer provided with the shear and the unwound paper surface below the paper and moved in the axial direction of the paper web. Bale tailoring equipment.