JPH09207923A - Unpacking device of sheet roll - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily and automatically unpack a vamp or a panel board as a packing material for a sheet roll. SOLUTION: The panel board of a sheet roll S is cut spirally for instance and removed. And a spatula-form cutting guide member 103 is inserted in the outer periphery of the end face of a roll paper exposed by the above cutting. And the vamp 4 and the some quantity of roll paper are put between a vamp cutter 10 reversely rotating against the transfer of the cutting guide member 103 and the cutting guide member 103 and cut breadthwise, while advancing the side guide roller 105 ahead.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for unsealing a sheet roll in which a sheet material is wound into a roll, and more particularly to a device for unwrapping a one-piece cover that covers the outer peripheral surface of the sheet roll, The present invention relates to a device for opening a cover plate.

[0002]

2. Description of the Related Art A paper roll (sheet roll) delivered from a paper manufacturer to a printing plant, a corrugated board manufacturing plant or the like is usually entirely wrapped with a thick or vinyl protective sheet to prevent moisture and damage. Is. Then, the packaging must be opened in advance before mounting it on a predetermined device in order to use the paper roll. Conventionally, in a general factory, the packaging is manually opened, but this requires considerable labor and time. For example,
Wamp covering the outer peripheral surface of the sheet roll, after separating the end plate that covers both end surfaces, it will be cut in the width direction by inserting a blade between the outer peripheral surface of the sheet roll and the wamp,
Since the wamp and the outer peripheral surface of the sheet roll are usually in close contact with each other, it is not easy to cut the wamp. Further, the end plates on both sides are usually too thick to be easily opened.

[0003]

SUMMARY OF THE INVENTION An object of the present invention is to easily open a wamp and to automate the opening of the entire package including the end plate.

[0004]

The present invention includes a cutting guide member, a one-punch cutter, and a cutting portion moving device. The cutting guide member is inserted into the inside of the wamp from one end surface side of the sheet roll from which the end plate is removed. The one-punch cutter cuts from the outside of the one-punch between the cutting guide member and the one-piece pouch or in a state where the one-punch and the outer surface portion of the sheet roll (hereinafter referred to as the one-punch) are sandwiched. The cutting part moving device moves the above-mentioned cutting guide member and the one-punch cutter from one end face side of the sheet roll to the other end face side, and cuts the above-mentioned one-punch or the like over its entire width.

When cutting with a one-punch cutter from the outside without a cutting guide member, the cutting margin varies depending on the rigidity of the wamp and the pressing force of the cutter, so the cutting guide member is inserted, By cutting the wamp between this and the wamp cutter, the cutting part cut by the wamp cutter and the part to be cut that is not cut are instantly distinguished, and when the sheet roll is used later when the sheet roll is used. The supply start end can be clearly specified. Moreover, even if the one-piece wand etc. are in close contact with the outer surface of the sheet roll, the cutting guide member is inserted into the outer surface part of the sheet roll to cut, for example, several sheets and one-piece wand etc. on the outer surface part of the sheet roll together. By doing so, it is possible to efficiently open the wrap.

Here, since the outer surface portion of the sheet material is often damaged during transportation, it is usually discarded as appropriate before the production process. In addition, it is more convenient to cut the outer surface of the sheet roll together.

The wamp cutter can be rotationally driven by a driving means. In this case, the wamp cutter rotates and moves in the width direction of the wamp to cut it. Here, for example, a disk-shaped cutter can be used as the wamp cutter, and if this is rotated so as to oppose the cutting movement direction, the relative speed between the wamp and the cutter increases, and thus smoother cutting is possible. .

It is possible to provide a winding device for winding the above-mentioned one-piece or the like after the cutting of the one-piece or the like is completed. In this way, the opening and recovery of the wamp can be automated. The take-up device can be configured as having a take-up portion that rotates by constraining the cut ends of the one-piece or the like at both ends in the width direction of the one-piece, and those take-up portions in the width direction of the one-piece or the like. If they are supported so that they can approach and separate from each other, the position can be adjusted according to the width dimension of the wamp or the like, so that even if the wamp width is different, it can be used universally. When the above-mentioned wamp cutter cuts not only the wamp but also the sheet material on the outer peripheral portion of the sheet roll, the winding device winds a certain amount of the sheet material on the outer surface in addition to the wamp, but in that case, After stopping, a sheet material cutter for cutting the sheet material can be provided between the winding device and the sheet roll.

The sheet material cutter can be configured to be integrally moved by being supported by the cutting section moving device together with the cutting guide member and the one-punch cutter. Then, in the process of moving from one end to the other end of the sheet roll, the above-mentioned cutting guide member and the one-pitch cutter cut the one-punch and the like, and then the winding device winds the one-punch and a part of the sheet material. After that, the sheet material cutter can cut the sheet material between the winding device and the sheet roll in the return movement step of returning from the other end side of the sheet roll to the one end side. In this way, the one-piece etc. is cut by the movement of the cutting part moving device in the position direction, and the sheet material cutter cuts the sheet material by the return movement,
The cutting action is performed by the reciprocating movement of the cutting unit moving device, and the movement is efficient and efficient.

Further, after cutting the sheet material by the sheet material cutter, a tape sticking device can be provided for fixing the cut end of the sheet material to the sheet roll. As a result, the cut end of the sheet material is fixed to the sheet roll by the tape, so the cut end of the sheet material moves between the opening of the wand and the actual installation of the sheet roll in the production equipment. It is possible to prevent the winding of the sheet roll from being loosened and the sheet material from being soiled or scratched.

Although the invention described above is a device for opening the wamp, in addition to this, a device for opening the end plates covering both end surfaces of the sheet roll can be added. In this end plate opening device, the end plate is removed from the end face of the sheet roll, for example, by the end plate cutter cutting the end plate from the center and moving the end plate cutter from the center of the end plate to the outer peripheral side. Further, subsequently to this, the above-mentioned cutting portion moving device is moved in the width direction of the hump, and the hump is opened by the above-mentioned hump cutter and the cutting guide member.

Here, the above-mentioned sheet roll is provided with a core material in which at least both ends are formed in a tubular shape at the center thereof, and the end plate opening device is inserted into the inner space of the core material from both sides. A pair of inserted members, and an air supply device that supplies compressed air from at least one of the inserted members to the inside of the core material. Then, the end plate cutter is provided so as to be retractable in the insertion member, and after the insertion member is inserted inside the core material, the end plate is cut into the end plate of the sheet roll by compressed air. Here, as the end plate cutter moving device, it is possible to give the end plate cutter a spiral rotation locus relative to the end plate from the central portion toward the outer periphery. If you give a swirling trajectory like this, one end plate will be opened in a way that peels the skin of an apple, so to speak.
In the post-treatment, the opened end plate is not bulky and can be easily treated.

Further, when giving such a spiral locus, the end plate cutter is provided with a cutting tool which repeatedly opens and closes by a scissor action, and the end plate cutter is cut from the central portion of the sheet roll to the outer peripheral side. It is possible to add an end plate cutter attitude changing device for inclining the cutting direction of the end plate cutter with respect to the radial direction of the end plate when moving the end plate cutter. As a result, the end plate cutter can obtain a relatively spiral rotation locus, or by repeatedly opening and closing by a scissor action, it is possible to easily open an end plate that is considerably thick and difficult to cut.

[0014]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the embodiments shown in the drawings. First, the end plate opening device will be described according to the opening order, and then the wamp opening device. Will be described as an example.

FIG. 1 shows an example of the sheet roll S. This uses, for example, a paper tube 2 as a core material, and with this as the center,
As shown in FIG. 2, a paper roll 1 (sheet material) for printing or cardboard production is rolled up.
In order to protect the substrate from damage, moisture and the like, a perimeter thereof is covered with a wamp (peripheral protective sheet) 4 and both side faces thereof are covered with end plates (side protective sheets) 5. Generally, the outer peripheral edge portion of the wamp 4 is bent inward, and the bent portion and the circular sheet pasted from the outside are combined to be referred to as an end plate 5. The paper tube 2 is a cylindrical member made of paper, plastic, or the like, and the opening portions at both ends thereof may be opened to the outside or may be closed by the end plate 5. Both the wamp 4 and the end plate 5 are generally made of paper, but resin sheets may be used.

As an example of an apparatus for opening (removing) the end plate 5, a side view of the apparatus is shown in FIG. 3 and a plan view thereof is shown in FIG. This apparatus has a main frame 7 fixed on the floor, and a working table 8 attached to the frame 7 moves up and down. The working table 8 is integrally provided with two brackets 9, and each bracket 9 is engaged with the guide rail 11 of the main frame 7 in the four guided portions 10 and is movable in the vertical direction. Further, the nut member 12 provided on the bracket 9 of the working table 8
Is screwed onto a vertical screw shaft 13, and this screw shaft 13 is provided on the main frame 7
By being rotated in both forward and reverse directions by 4, the working table 8 moves up and down.

A pair of arms 16 are attached to the working table 8 so as to be movable in the horizontal direction. A pair of mounting pieces 17 are provided on the base end side of each arm 16 at a distance in the vertical direction, and these mounting pieces 17 engage with respective rails 18 formed horizontally above and below the working table 8, This guides the horizontal movement. As shown in FIG. 4, the working table 8 is provided with a pair of bearings 19 on both sides with respect to the center of the working table 8, and the screw shafts 20 are rotatably supported by these bearings. Each screw shaft 20 is attached to each arm 1
6 are screwed with the nut portions 21 provided in
Sprocket 2 with each screw shaft 20 fixed to its end
2 and the arms 16 are rotated by driving means such as a gear motor 23 with a brake provided on the working table 8 via a chain (not shown), so that the arms 16 are moved toward and away from each other in the horizontal direction. In addition, 2
Reference numerals 4 and 24 denote encoders that determine the approach distance of the arm 16 based on the detection of the rotation speed of each screw shaft 20.

At the lower end of each arm 16, chuck parts 25 projecting inwardly as a pair of insertion members are provided concentrically with respect to a straight line parallel to the moving direction of the arm 16. Each chuck portion 25 is attached to the arm 16 by a holder shaft 26, and as shown in FIG.
The holder shaft 26 has three shaft portions 26a, 26b, and 26c integrally and concentrically coupled to each other, and a tapered chuck portion 25 (star-shaped cone chuck) is integrally attached to a tip portion thereof. I have.

As shown in FIG. 7, a roller 29 having a holder shaft 26 (shaft portion 26c) adjacent to the chuck portion 25 and having an outer diameter slightly smaller than the inner diameter of the paper tube 2 via a bearing bearing 28 is provided. Is rotatably provided. The outer shape of the roller 29 is slightly larger than the maximum diameter of the chuck portion 25, and the roller 29 fits on the inner peripheral surface of the paper tube 2. Reference numeral 30 denotes a base attached to both ends of the paper tube 2.

An air passage 31 is formed in the base end portion (shaft portion 26a) of the holder shaft 26 in the axial direction.
Numeral 1 communicates with a groove 33 formed in the holder shaft 26 (shaft 26b) via a recess 32. The groove portion 33 is formed in a slit shape (for example, a rectangular shape) halfway in the diametrical direction of the holder shaft 26, and serves as a space for storing a cutter described later, and a compressed air passage in a state where the cutter is stored. Is formed, which will be described later. Compressed air is supplied to the air passage 31 from a compressed air source 35 such as a compressor via a joint 34 via an air pipe 36 such as a hose.

As shown in FIG. 6, a movable plate 37 is incorporated in the middle portion of the holder shaft 26 so as to be movable in the axial direction, and a bellows 38 made of an elastic member such as rubber is used as a seal member in the movable plate 37. Is provided. The bellofram 38 has a shallow container shape and opens toward the side surface of the sheet roll S. The movable plate 37 is most distant from the arm 16 in a state where the head of the guide rod 39 fixed to itself contacts the arm 16, and is constantly urged in the direction of the separation by the compression spring 40. The bellows 38 is pressed against the end plate 5 by its spring force.

As shown in FIG. 7, end plate cutters 41 are provided corresponding to both side surfaces of the sheet roll S, and are connected to a cutter moving base 68 via a cutter holder 42. The cutter moving base 68 is screwed to the screw shaft 44 at its own nut portion 43. As shown in FIG. 5, the screw shaft 44 is rotatably supported by a bearing 45 fixed to the arm 16, and is connected to a timing pulley 46 fixed to one end of the screw shaft 44 via a timing belt (not shown). By transmitting a rotational force from a drive source such as this, the motor is rotated in both forward and reverse directions. As a result, the cutter 41 is moved in the radial direction of the sheet roll S via the cutter moving base 68 and the like, as shown in FIG.
8, the screw shaft 44, the motor 47, etc. constitute the end plate cutter moving device. A linear guide groove 50 is formed in the arm 16 corresponding to the movement trajectory of the cutter moving base 68, and the cutter moving base 68 moves within this range.

As shown in FIG. 9, the end plate cutter 41 includes a fixed blade 70 fixed to the cutter holder 42 and a movable blade 71 having a blade portion 72 that forms a kind of scissors between the fixed blade 70 and the fixed blade 70. An end plate cutter guide 51 is provided so as to further project from the tip of the fixed blade 70 to the outer peripheral side of the sheet roll S, and this tip portion enters the gap between the inner end surface of the paper roll and the end plate 5 prior to the movable blade 71. It will proceed. The cutter guide 51 is fixed to an end face of the cutter holder 42.

The movable blade 71 has an arm portion 74 extending rearward from the blade portion 72, and the arm portion 74 and the blade portion 72.
Between the cutter holder 42 and the shaft 73.
Is rotatably connected to The movable blade 71 is connected to the shaft 7
By swinging about 3 in a predetermined angle range, the fixed blade 70 and the movable blade 71 perform a cutting action of scissors in a plane substantially perpendicular to the end face of the paper roll, and the end of the arm portion 74. The part is inserted into an elongated hole 76 formed in the drive rod 75.

As shown in FIG. 7, the drive rod 75 is connected to an eccentric cam 78 rotated by a motor 77 via a pin 79, a connecting rod 80 and a pin 81. The eccentric cam 78 is coaxially fixed to the output shaft 82 of the motor 77, and the pin 81 is located at a position eccentric from the center thereof. The drive rod 75 is held by a guide portion 42a provided on the cutter holder 42 so as to be movable in the axial direction. Therefore, by driving the motor 77, the eccentric cam 7
When 8 rotates, the drive rod 7 passes through the connecting rod 80.
5 is repeatedly driven up and down in FIG. 7, a movable blade 71 connected to the lower end of the blade 5 through a long hole 76 swings within a predetermined angle range, and the fixed blade 70 and the above-mentioned scissors cut. The cutting action will be performed. In this embodiment, the drive rod 75, the eccentric cam 78, and the motor 7 described above are used.
7 and the like constitute the end plate cutter driving device.

The cutter holder 42 has an L-shaped cross section as a whole, and a holder tip portion 84 for directly holding the end plate cutter 41 is attached to the holder base portion 83 located on the cutter moving base 68 side by a bolt 85. It is fixed.

The cutter holder 42 is rotatably attached to the cutter moving base 68 by a shaft 86 in the holder base portion 83 along a plane substantially parallel to the side surface of the sheet roll S. A cam follower 87 is rotatably mounted on the opposite side of the holder base portion 83 from the holder tip portion 84 via a shaft 86, and the cam follower 87 is engaged with the cam groove 88. Cam groove 88
Is formed on a cam plate 89, and the cam plate 89 is fixed to the arm 16 described above. Therefore, the cam groove 88
Moves toward and away from the side surface of the sheet roll S together with the arm 16, but its position is fixed with respect to the center line of the sheet roll S. Further, the motor 77 that drives the above-described movable blade 71 is fixed to the holder base portion 83 of the cutter holder 42 via the bracket 90. Therefore, the motor 77, the drive rod 75, and the like can also rotate around the shaft 86 integrally with the cutter holder 42.

A cam groove 88 formed in the cam plate 89
Is from the center side of the sheet roll S as shown in FIG.
An A portion that linearly extends to the outer peripheral side and a B portion that bulges laterally from the extension line to reach the terminal end are continuously connected. When the cam follower 87 is at P1,
As shown in FIG. 8, the end plate cutter 41 and the cutter holder 42 are stored in the holder shaft 26 of the chuck portion 25. The position P2 in FIG. 10 corresponds to the starting point of the cutting of the end plate 5 by the end plate cutter 41 or the state immediately after the start.

That is, in the course of the movement of the cam follower 87 along the portion A of the cam groove 88, the directions of the end plate cutter 41 and the cutter holder 42 do not change, and the movement is linear. The cam follower 87 is provided on the B portion of the cam groove 88.
In the process followed by, the cutter holder 42 gradually rotates counterclockwise in the figure, and the cutting direction of the end plate cutter 41 shifts to a direction intersecting the radial direction of the sheet roll S. The P3 position of the cam follower 87 shows this state, and when the cam follower 87 reaches the P4 position near the end of the cam groove 88, the cutter holder 42 changes its posture to a right angle (tangential direction) to the radial direction of the sheet roll S. To do.

In addition, slits are formed in the above-mentioned belofurum 38 and the movable plate 37 (see FIG. 6) corresponding to the movement paths of the end plate cutter 41 and the cutter holder 42 so as to allow their movement. Further, the end plate cutter 41 is housed in the groove portion 33 formed in the holder shaft 26 of the chuck portion 25 together with a part of the cutter holder 42. In the stored state, the cutter 41 is positioned substantially at the center of the sheet roll S as shown in FIG. 8, and the gap 48 between the cutter holder 42 and the bottom surface of the groove 33 of the holder shaft 26 forms the above-mentioned compressed air passage. Become. Then, the compressed air leaks from the concave portion 92 formed in the holder shaft 26c through the end plate cutter 41 into the paper tube 2 and fills the whole thereof.

As shown in FIGS. 5 and 6, each arm 1
An outer peripheral cutter 53 that cuts the outer peripheral edge portion of the end plate 5 is provided as a second end plate cutter. The cutter 53 has a disc shape and has an outer periphery as a cutting edge, and is concentrically fixed to a side surface of a roller-shaped cutter holder 54. At least the outer peripheral portion of the cutter holder 54 is an elastic roller made of an elastic material such as rubber, and the outer peripheral cutter 53 has a diameter slightly larger than that of the cutter holder 54. In the state of being pressed against the portion, the cutter 53 rotates together with the frictional force as the sheet roll S rotates, thereby cutting the outer peripheral edge portion of the end plate 5.

The cutter 53 and the cutter holder 54 are rotatably held by a holder 55, and the cylinder 5 such as air is
6. The cylinder 56 is fixed to the arm 16 via a bracket 57, and the extension / contraction of the cylinder 56 causes the cutter 53 and the cutter holder 54 to approach / separate from the outer peripheral surface of the sheet roll S. The movement is guided by a sliding fit between a guide rod 58 fixed to the holder 55 and a bush 59 fixed to the bracket 57.

As shown in FIG. 11, a drive roller (driving roller) 60, which is located between the pair of arms 16 and rotates the sheet roll S, is provided as a sheet roll rotation drive device. This is a roller that is rotationally driven by a drive unit such as a motor 61, and rotates the sheet roll S by a frictional force. Therefore, the material is desirably an elastic material such as rubber. The drive roller 60 is connected to a cylinder 63 of air or the like shown in FIG. 3 via a holder 62, and the cylinder 63 is fixed to an appropriate member such as the working table 8, the main frame 7 or the arm 16, and the drive roller 60 is expanded or contracted. The position of 60 is determined.

Further, as shown in FIG. 4, a pair of rollers 64 is pressed against the side surface of the sheet roll S which is off the center.
Is provided. The axis of each roller 64 is pressed against the side surface of the sheet roll S in the radial direction so that the sheet roll S does not shake laterally. The cylinder 65 fixed to each arm 16 projects the roller 64 from each arm 16. The amount is adjustable.

Further, as shown in FIG. 3, a transporting device 66 such as a traverser for loading the sheet roll S into the apparatus is provided on the floor near the main frame 7.
Further, as shown in FIG. 11, an automatic collecting device 67 for automatically collecting the end plate 5 separated from the sheet roll S is
It is installed close to the floor. This is, for example, as an inclined discharge chute, a structure in which the end plate 5 dropped on the chute is slid by gravity and discharged, or a structure in which the end plate 5 is discharged by a belt conveyor, and further provided on an endless track such as a chain. It is possible to select an appropriate structure such as a structure in which the discharge claw is circulated to discharge the end plate 5.

As shown in FIGS. 3 and 11, a one-piece opening unit 100 is provided near the outer circumference of the sheet roll S. In this embodiment, the one-piece opening 5 is opened after the end plate 5 is opened. First, the operation of opening the end plate 5 will be described, and then the configuration and operation of the one-piece opening unit 100 will be described.

As shown in FIG. 2, the sheet roll S whose outer periphery is covered with the wamp 4 and whose side surface is covered with the end plate 5 is conveyed to a position right below the apparatus shown in FIG. 3 by a conveying device such as a traverser 66 and stops there. . In this state, each arm 16 supported by the working table 8 is lowered via the screw shaft 13 by driving of the motor 14. When the chuck portion 25 of the arm 16 substantially coincides with the center of the paper tube 2, the lowering of the arm 16 stops.

Next, referring to FIG. 4, the motor 23 is driven to move the pair of arms 16 through the screw shafts 20 in a direction in which they approach each other (a direction in which the sheet roll S is pinched), and the chuck portion of each arm 16 is moved. As shown in FIG. 5, 25 is inserted into the openings of both ends of the paper tube 2 by a predetermined amount. This insertion amount is detected by the encoder 24 in FIG. 4 as the rotation speed of the screw shaft 20, and the motor 23 stops when the rotation speed reaches a specified rotation speed.

In this state, as shown in FIG. 5, the chuck portion 25, the rotatable roller 29, the holder shaft 2, and the like.
6 is inserted into the paper tube 2 and the movable plate 3
The belofurum 38 held by 7 adheres to the end plate 5 in a region including the peripheral portion of the opening of the paper tube 2. During this close contact,
The bellows 38 and the movable plate 37 are springs 4.
It is pushed back toward the arm 16 side against the biasing force of 0. Since the end plate cutter 41 is housed in the groove portion 33 of the holder shaft 26 shown in FIG. 8 during such insertion of the chuck portion 25, the end plate cutter 41 does not hinder the insertion.

In this state, compressed air is supplied to the chuck holder shaft 26 from the compressed air source 35 shown in FIG. 7 through the air passage 31 and the like. The compressed air reaches the inner peripheral surface of the paper tube 2 through a gap 48 between the groove 33 of the holder shaft 26 and the cutter holder 42 and the like as shown in FIG. The space on the other side is filled through the gap. After the filling, the compressed air leaks out of the paper tube 2 from the outer edge portion of the bellows 38 while pushing away the portion of the end plate 5 corresponding to the opening of the paper tube 2 to the outside. At this time, the end plate 5 is lifted from the side surface of the paper roll 1.

Next, the pair of arms 16 is slightly opened by the drive of the above-mentioned motor 23 (FIG. 4) and retracts to the position shown in FIG. As a result, a part of the cutter guide 51 and the end plate cutter 41 shown in FIG. 7 enters a state where the end plate 5 and the web 1 are lifted up as described above. In this state, the motor 47 shown in FIG. 5 is driven to move the cutter holder 42, the end plate cutter 41 and the cutter guide 51 via both screw shafts 44 from the central portion of the sheet roll S toward the outer periphery. 7 drives the motor 77 to drive the drive rod 7 via the eccentric cam 78.
5 reciprocates in the axial direction, whereby the movable blade 71 swings. As a result, the movable blade 71 repeats the opening and closing movement (that is, the scissors cutting movement) for closing and opening with the fixed blade 70, and the end plate cutter 41 in the driven state moves from the inner end of the end plate 5 to the outer peripheral side. Cut towards. At this time, the cutter guide 51 enters the gap between the web 1 and the end plate 5 and plays a leading role of the cutter 41.
There is no fear that the side surface of the web 1 will be damaged by the cutter 41.

The supply of compressed air into the paper tube 2 is stopped when the cutter guide 51 and a part of the end plate cutter 41 are inserted into the gap. Therefore, the compressed air that has filled the paper tube 2 and leaked from the paper tube 2 to float the end plate 5 is discharged.

By driving the screw shaft 44 shown in FIG. 7, the cutter holder 42 holding the end plate cutter 41 moves to the upper side of the drawing, but as shown in FIG. 10, the cam follower 87 of the cutter holder 42 moves the cam. After passing through the portion A of the groove 88 and entering the portion B, the cutter holder 42 starts to rotate counterclockwise in the figure, which causes the end plate cutter 41 to rotate.
The cutting direction (cutting orientation) of the sheet crosses the radial direction of the sheet roll S.

At this stage, the motor 14 shown in FIG. 3 slightly raises the arm 16 via the working table 8, whereby the arm 16 lifts the sheet roll S and lifts it from the traverser 66 and the like. At this time, since the rotatable roller 29 (FIG. 6 or the like) that is close to the chuck portion 25 is located at the opening of the paper tube 2, the sheet roll S can freely rotate through the roller 29. . This state may be set from the beginning. Then, the drive roller 60 is driven while being pressed against the outer periphery (the wamp 4) of the sheet roll S by the drive of the motor 61 shown in FIG. 11, thereby rotating the sheet roll S in the arrow direction in the figure. With the sheet roll S rotated in this manner, the cutter holder 42 shown in FIG. 10 moves to the outer peripheral side of the sheet roll S along the cam groove 88, so that the cutting direction of the cutter holder 42 and thus the end plate cutter 41 is set to the sheet. The roll S is gradually inclined with respect to the radial direction. As a result, for example, the end plate 5 of the sheet roll S is spirally cut as shown in FIG. As a result, the end plate 5
Become chips like a spiral band and are sequentially peeled off from the sheet roll S.

In this embodiment, such an end plate cutter 4 is used.
1 separates the end plate 5 from the sheet roll S in a state of cutting the end plate 5 just before the outer periphery, and thereafter, as shown in FIG. 6, each outer peripheral cutter 53 is positioned at the outer peripheral edge portion of the end plate 5. Then, as the sheet roll S rotates, the outer peripheral cutter 53 cuts the outer peripheral edge portion of the end plate 5 in the circumferential direction by rotating the sheet roll S while the cutter holder 54 is pressed against the outer peripheral surface of the sheet roll S. Go. When this cutting is completed, the end plate 5 is completely peeled from the sheet roll S.

Here, as shown in FIG. 12 (b), when the outer periphery of the end plate 5 is simply cut in the circumferential direction, the portion removed (peeled) by the cutting is bulky, and later recovery is troublesome. On the other hand, in the present embodiment, as shown in FIG. 7C, since the chips are spiral-shaped, they are not bulky and can be easily recovered by the automatic recovery device 67 or the like in FIG.

The end plate cutter 41 described above returns to the holder shaft 26 side by the rotation of the screw shaft 44 in the opposite direction after the completion of one cycle of the cutting process, and the posture thereof in FIG. The roll S is moved in the radial direction, and finally stored in the groove portion 33 of the holder shaft 26 to prepare for the next cutting process.

After the end plates 5 on both sides of the sheet roll S are unsealed and removed as described above, the remaining wamp 4 is unsealed by the above-described one-wamp opening unit 100 shown in FIG. Below, this one-piece opening unit 1
00 will be described in detail. FIG. 13 has a positional relationship opposite to that of FIG. 3, and the working table 8 supporting the arm 16 is moved up and down by a chain 101 driven by a motor (not shown). The wipe opening unit 100 is arranged on the side opposite to the working table 8 with respect to the sheet roll S, and is supported by an auxiliary frame 102 that forms a gate shape together with the frame 7. FIG. 1 is an enlarged view of the wamp opening unit 100.
It is shown in FIG.

As is apparent from this figure, the wamp opening unit 100 is composed of a pointed, spatula-shaped cutting guide member 103 to be inserted inside the wamp 4, and a disc-shaped wamp cutter located in close proximity thereto. 104, a side guide roller 105 that is pressed against the outer periphery of the wamp 4 and leads
And the cutting head 106 and the bracket 10
6a, the slider 108 is supported by the slider 108, and the slider 108 is connected to the cross member 102 of the auxiliary frame 102.
It is mounted on the guide rail 107 provided in a and is reciprocally moved in the width direction (the direction perpendicular to the paper surface of FIG. 14) of the wamp 4 in the horizontal direction by the cutting portion moving device such as the screw driving device 109. ing.

Further, the cross member 102a is provided with a winding device 111 for winding the opened wamp 4 and the like on the tip end portion thereof via the arm 110, and the bracket 10 is also provided.
6b includes a slider 108 after unwrapping and winding of the wamp 4.
A sheet material cutter 112 is provided for cutting the paper roll (sheet material) during the return movement of. The sheet material cutter 112 has a disc shape, and has a long receiving member 113.
The cylinder 114 presses the slider 10 against (the surface is made of an elastic material such as rubber), and the slider 10
The web is cut by the driven rotation accompanying the movement of 8. The receiving member 113 is fixed to the cross member 102a by an arm 115, and a paper guide 113a for guiding the paper roll is provided above the receiving member 113. Further, a circumferential guide roller 116 is provided above the cutting head 106 and is pressed against the outer peripheral surface of the sheet roll S to guide its rotation.

FIG. 15 (side view), FIG. 16 (plan sectional view)
As is clear from the above, the above spatula-shaped cutting guide member 1
Reference numeral 03 has a flat bottom surface 103a and an outer peripheral surface 103b that bulges in an arc shape from the bottom surface, and the outer peripheral surface 103b is inclined so that its tip is sharply pointed. The spatula-shaped cutting guide member 103 is horizontally and inwardly fixed to the support plate 117 so that the cutting roll guide member 103 can be inserted from the side of the sheet roll S into the inside of the wipe 4, and the support plate 117 mounts the adjusting mechanism 118. It is supported by the cutting head 106 through. The adjusting mechanism 118 has a compression spring 119 and a position adjusting screw 120,
By the operation of the screw 120, the insertion thickness t of the cutting guide member 103 with respect to the sheet roll S is defined.

A groove 103c extending in the width direction of the sheet roll S is formed on the outer peripheral surface of the cutting guide member 103, and the outer peripheral portion of the one-pitch cutter 104 is inserted into the groove 103c, and between the one-pitch cutter 104 and the groove 103c. There is a slight clearance. As shown in FIG. 15, the one-pitch cutter 104 also has a support plate 117.
And is driven to rotate by gears 122 and 123 by a cutter driving device such as a motor 121. The driving direction is a direction opposite to the moving direction of the cutting guide member 103 as shown in FIG.
Such a wamp cutter 104 and cutting guide member 1
The support plate 117 for supporting 03 is supported by the adjusting mechanism 118 described above, and the clamp bolt 1 shown in FIG. 15 is used to fix the clamp plate 1 in the adjusted state.
24 and 125 and a stopper bolt 126 are provided.

Further, as shown in FIG. 16, the side guide roller 105 described above also has its arm 127 and bracket 12.
The fixing amount is fixed to the support plate 117 via 8 and the protrusion amount (fixed position) of the elongated hole 129 can be adjusted by the clamp bolt 130 and the stopper bolt 131. This side guide roller 105 is pressed against the outer peripheral surface (wamp) of the sheet roll S and leads the
In addition to this, the cutting guide member 103 and the one-punch cutter 104
However, it can be said that the insertion thickness t of the cutting guide member 103 is ultimately determined by the relative positional relationship between the side guide roller 105 and the cutting guide member 103.

As shown in FIG. 17, the slider 1 described above is used.
08 is a cutting guide member 103, a one-punch cutter 104
The screw driving device 109 that supports the side guide roller 105 and the like, and reciprocates the side guide roller 105 in the width direction of the sheet roll S, is screwed to the screw shaft 134, the motor 135 that drives the screw shaft 134, and the screw shaft 134. And a nut member 136 fixed to the slider 108 side. The screw shaft 1 is rotated by the forward and reverse rotation of the motor 135.
The slider 108 reciprocates in the horizontal direction via 34. In addition, the entire moving mechanism 137 for moving the cutting portion 132 is the same as the auxiliary frame 102.
In contrast, the cylinder 1 is guided by the guide rod 138.
It is possible to move forward / backward by 39, and to move to a predetermined position when opening the wamp 4.

The winding device 111 shown in FIG. 14 is located below both ends of the sheet roll S, respectively. FIG.
As shown in FIG. 19 and FIG. 19, in the winding device 111, the rotating winding portion is composed of a plurality of (for example, four) winding bars 140, which are supported by the rotating portion 141 (FIG. 2).
See also 0). Wamp 4 etc. that are opened are these winding bars 1
Although it is wound around the outer circumference of 04, an openable-close clamper 142 that holds the tip of the wamp 4 or the like is located inside the winding bar 104, and this holds the tip of the wamp 4 or the like. Further, a negative pressure suction portion 143 (FIG. 19) is provided so as not to separate the wamp 4 or the like in the gripped state.
4 and 145, the negative pressure source 146 is connected.

As shown in FIG. 18, the rotational driving force of the winding motor 148 or the like is transmitted to the spline shaft 151 via the chains 149 and 150, and then further transmitted to the sprocket 156, the chain 158, and the rotating portion 141. The take-up bar 140 and the clamper 142 rotate. The winding device 111 is movable in the width direction of the sheet roll S so that the sheet roll S can be wound even if the width dimension of the sheet roll S is changed. That is, the position adjustment motor 1
52 rotates the screw shaft 153, which causes the nut member 15 to rotate.
The winding device 111 is moved forward and backward via the 4 and the slide base 155. A sprocket 156 for driving the winding device 111 is spline-coupled to the spline shaft 151, so that the winding device 111 can rotate at an arbitrary position. Then, the winding device 1 on both sides of the sheet roll S
By moving 11 in this way, they approach each other and separate from each other, which corresponds to the difference in the width dimension of the sheet roll S. Further, as shown in FIG. 19, edge sensors 157 for detecting the edge of the wamp 4 and the like are provided at a plurality of positions on both sides of the sheet roll S, whereby the position adjusting motor 15 of FIG.
2 operates so that the winding position of each winding device 111 is automatically adjusted.

A tape applying device 16 for fixing the opened paper edge in the vicinity of the circumferential guide roller 116 shown in FIG.
0 is provided. As shown in FIG. 21, the arm 161 supporting the circumferential guide roller 116 is fixed to the above-mentioned cross member 102 a, and the guide roller 116 is
The holder 162 is rotatably supported in a vertical plane about the axis of the. A cartridge type tape roll 163 and a tape 164 fed from the holder 162 are provided in the holder 162.
A nip roll 165 that presses the sheet roll S against the sheet roll S, and a tape cutter 166 that cuts the tape 164 are supported. The nip roll 165 is a pinch roll 1.
The tape 164 is pinched in cooperation with 67, and is rotated by a drive source such as a rotary actuator 168, so that the tape 164 is delivered from the tape roll 163. When the tape roll 163 is replaced, the pusher such as the cylinder 169 pushes it out. The tape cutter 166 swings from the lower side to the upper side about 180 ° around the shaft center of the nip roll 165 to cut the tape 164, and a cutter driving unit (not shown) is also provided in the holder 162.

The holder 162 is rotated by a predetermined angle by an advancing / retracting device such as the cylinder 170 and is moved forward and backward with respect to the sheet roll S. The tape 164 is preferably a tape such as a masking tape which has a relatively weak adhesive layer formed on one surface and is easily peeled off.

Next, the one-piece opening device 100 described above.
The whole flow including the operation of will be explained. 22 (1),
In (2), as described above, the end plates 5 on both ends of the sheet roll S are unwrapped and removed in a spiral shape, and then the wamp 4 is unsealed as shown in FIG. 22 (3). That is, FIG.
The spatula-shaped cutting guide member 103 is inserted into the outer surface of the web 1 from the one end surface of the sheet roll S (the web is exposed). Also,
The lateral guide roller 105 is pressed against the outer surface of the wamp 4. By moving the slider 108 (FIG. 14) laterally (upward in FIG. 16) in such a state, the one-putter cutter 104 and the cutting guide member 1 that rotate in the direction of the arrow are shown.
Wamp 4 sandwiched between 03 and a predetermined number of rolls of paper 1
The (base paper) is cut over the entire width direction. The state is shown in FIGS. 22 (3) and 22 (4).

After completion of such one-off cutting, FIG.
As shown in FIG. 3, the sheet roll S is connected to the drive roller 6
At 0, it is rotated as shown in FIG. At this time, the edge sensor 157 shown in FIG. 19 detects the paper edge, and the left and right winding devices 111 are set to the winding position according to the width dimension. Then, when the edge of the paper enters the clamper 142,
When this is closed, negative pressure is sucked, and the rotating part 141
As shown in FIG. 23 (7), the wamp 4 and the plurality of base papers 1 (hereinafter, also referred to as the wamp 4 etc.) are wound. When wound up in this manner, the base paper 1 appears after the winding of the wamp 4 is completed, and this is the sheet roll S.
It is continuously connected with. Therefore, as shown in FIG. 8 (8), the base paper (such as the wamp 4) is cut when the cutting portion moves in the returning direction. That is, the receiving member 113 of FIG.
The base paper 1 is sandwiched between the sheet material cutter 112 and the sheet material cutter 112, and the base paper is cut in the process in which the cutter 112 rotates and returns. The disconnection completed state is shown in (9) of FIG. After that, the tape 164 is attached to the paper edge of the base paper, and the opening process for one sheet roll S is completed.

For tape application, as shown in FIG. 25, the circumferential guide roller 116 is used by the sheet roll S.
While being pressed against the outer peripheral surface of the (base paper), the nip roll 156 is pressed against the paper end of the base paper by the cylinder 170 of FIG. 21, and the tape 164 is fed out (see FIG. 25B). Then, after the nip roll 165 and the like are retracted as shown in FIG.
Jumps up and cuts the tape 164.

In the above description, the one-piece opening unit (1
00) is provided on the side of the sheet roll S,
After the cut, the wipe 4 does not slip off from the sheet roll S, and there is an advantage that the process can be smoothly moved to the subsequent winding process. However, the unit for opening the wipe is not limited to the side of the sheet roll S. It can be installed at an appropriate position such as above. Further, the winding device 111 such as the wamp 4 and the tape attaching device 160 at the end of the base paper may be omitted. Further, it is effective to cut the end plate 5 into a spiral shape and then subsequently perform the one-off cutting as described above in order to efficiently open the entire sheet roll S. It is also possible to appropriately open by the above method and open it with the one-piece opening unit 100 as described above.

[Brief description of drawings]

FIG. 1 is a perspective view showing an example of a sheet roll covered with a wamp and an end plate.

FIG. 2 is a view showing the end plate portion and the like.

FIG. 3 is a side view showing an example of an end plate opening device.

FIG. 4 is a plan view of FIG. 3;

5 is a cross-sectional view of a main part including a chuck unit in FIG. 4, showing a state in which compressed air is injected.

FIG. 6 is a cross-sectional view in which a cutter is positioned at an outer peripheral edge of a side sheet.

FIG. 7 is an essential part cross-sectional view showing the vicinity of a chuck portion and a cutter.

8 is an enlarged sectional view of a portion A in FIG.

FIG. 9 is a cross-sectional view showing a driven cutter using scissors.

FIG. 10 is an operation explanatory view of a cam mechanism for moving the cutter holder and the cutter and changing the posture thereof.

FIG. 11 is a perspective view showing a cut state of the outer periphery.

FIG. 12 is an explanatory view of an example of a spiral cutting locus and chips after cutting.

FIG. 13 is a side view of an opening device including a one-piece opening unit which is an example of the present invention.

FIG. 14 is a side view of the essential parts of the one-punch opening device.

FIG. 15 is a side view showing the one-putter cutter and its periphery.

16 is a plan sectional view corresponding to FIG.

FIG. 17 is a plan view showing a lateral movement mechanism of the one-piece opening unit of FIG.

FIG. 18 is a side view showing an example of a winding device such as a wamp.

FIG. 19 is a side sectional view showing the main part thereof.

20 is a plan view corresponding to FIG.

FIG. 21 is a side view showing an example of a tape sticking device.

FIG. 22 is an operation explanatory view of an example of the present invention.

FIG. 23 is an explanatory view of the operation following FIG. 22.

24 is an explanatory view of the operation subsequent to FIG.

FIG. 25 is an operation explanatory view showing an example of tape attachment.

[Explanation of symbols]

 S Sheet roll 1 Base paper (sheet material) 4 Wamp 5 End plate 25 Chuck part 31 Air passage 41 Cutter 53 Peripheral cutter 60 Drive roller 70 Fixed cutter 71 Movable cutter 87 Cam follower 88 Cam groove 100 Wamp opening unit 103 Cutting guide member 104 Wamp cutter 105 Side guide roller 109 Screw driving device 111 Winding device 112 Sheet material cutter 113 Receiving member 140 Winding bar 160 Tape sticking device 164 Tape

Claims (10)

[Claims] 1. A device for opening a wamp covering an outer peripheral surface of a sheet roll, in which a sheet material is wound into a roll, the cutting guide being inserted from one end face side of the sheet roll into the inside of the wamp. A member, and a cutting cutter that cuts the outside of the wamp from the cutting guide member alone or in a state in which the wamp and the outer surface portion of the sheet roll (hereinafter, referred to as a wamp) are sandwiched, And a cutting part moving device for moving the guide member and the one-punch cutter from one end face side of the sheet roll to the other end face side to cut the one-punch etc. over the entire width thereof. Opening device. 2. The wamp cutter is rotatably driven by a driving means, and cuts the wamp and the like with the cutting guide member while being moved by the cutting part moving device. apparatus. 3. A winding device is provided for winding the wamp or the like after the cutting of the wamp or the like is completed.
Or the apparatus according to 2. 4. The winding device has winding portions that rotate while constraining the cut ends of the wamp or the like at both ends in the width direction of the wamp or the like, and those winding portions include: The device according to claim 3, wherein the device is supported so as to be able to approach and separate in the width direction of the wamp or the like so that the position can be adjusted according to the width dimension of the wand or the like. 5. The wamp cutter cuts not only the wamp but also the sheet material on the outer surface portion of the sheet roll, and the winding device winds a certain amount of the sheet material on the outer surface portion in addition to the wamp. 5. The device according to claim 3, further comprising a sheet material cutter for cutting the sheet material between the winding device and the sheet roll after the winding operation is stopped. . 6. The cutting section moving device supports the sheet material cutter in addition to the cutting guide member and the wamp cutter, and moves the sheet roll from one end to the other end. , After cutting the wand and the like by the cutting guide member and the one-punch cutter, and the winding device winds up the part of the wamp and the sheet material, one from the other end side of the sheet roll. The apparatus according to claim 5, wherein the sheet material cutter cuts the sheet material between the winding device and the sheet roll in a return movement step of returning to the end portion side. 7. A tape sticking device for sticking a tape for fixing the cut end of the sheet material to the sheet roll after the sheet material is cut by the sheet material cutter. Equipment. 8. A device for opening the wamp according to any one of claims 1 to 7, and a device for opening an end plate covering both end surfaces of the sheet roll prior to opening the wamp. A device for opening an end plate includes an end plate cutter that cuts from the center of the end plate, and an end plate cutter moving device that moves the end plate cutter from the center of the end plate to the outer peripheral side. A sheet roll comprising opening control means for opening the wamp by moving the one-putter cutter and the cutting guide member by the cutting part moving device after the end plate is removed from the side surface of the sheet roll. Packaging opening device. 9. The sheet roll is provided with a core material in which at least both end portions are formed in a tubular shape in a center portion of the sheet roll, and the end plate opening device is provided inside the core material at both end surfaces of the sheet roll. A pair of insertion members to be inserted, and an air supply device that is provided in at least one of the pair of insertion members and supplies compressed air to the internal space of the core material, and the end plate cutter is inside the insertion member. It is provided so as to be retractable, and cuts into the end plate lifted from the end surface of the sheet roll by the compressed air. The end plate cutter moving device includes an outer circumference from a center portion of the end plate cutter relative to the end plate. 9. An apparatus as claimed in claim 8 which provides a spiral cutting trajectory towards. 10. A sheet roll rotation drive device for rotating the sheet roll about the core material, an end plate cutter moving device for moving the end plate cutter from a central portion of the sheet roll to an outer peripheral side, and an end plate cutter of the end plate cutter. An end plate cutter attitude changing device that tilts the cutting direction with respect to the radial direction of the end plate, and the end plate cutter includes a cutting tool that repeatedly opens and closes by a scissor action, and further drives the cutting tool to open and close the cutting tool. 10. A device according to claim 8 or 9, comprising a device.