JPH07149327A - Unsealing device of paper roll or the like - Google Patents

Abstract

PURPOSE:To easily peel off mill wrappers with manually or mechanically driven means, by inserting the front end of a cutter between the mill wrappers and roll paper and shifting it to the axial direction of the roll shaft. CONSTITUTION:At least a pair of rolls 30 rotatably supporting a paper roll at a specified position is provided to form a roll support device. And a mirror finished surface-mill wrapper cutter 48 is fitted so as to protrude toward the end face of the roll 10 to cut off the mirror finish surface of the mill wrapper 14 of rotary paper roll 10. A cutter 20 to cut off the side face mill wrapper 16 is provided with a guide plate 22 having a smooth face following the outer face of the paper roll 10 and a blade 24 erected like a dorsal fin so as to form a T-shaped section at the outer face of the guide plate 22. The front end of cutter is made sharp and inserted in the boundary of the mill wrapper 16 and the paper roll 10 from the end of paper roll. And the cutter 20 is axially slit along the roll to break the mill wrapper 16 and separate the paper roll 10.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an unsealing device for removing a wamp, which is a wrapping paper for a paper roll, and more particularly to a paper roll which can be easily peeled off from a wamp that closely packs the paper roll. Etc. related to the opening device.

[0002]

2. Description of the Related Art Paper rolls supplied as printing paper are
For protection during transportation, it is covered with a wrap as a wrapping paper made of waterproof paper or the like, and the wrap is peeled off before use. Conventionally, such a wipe stripping operation has been performed by an operator holding a knife cutter in his hand to directly cut the wamp.

[0003]

However, since the wamp covers the surface of the paper roll in a pressure-adhered state, it is very difficult to peel off the wamp, and the manual work with a cutter knife is not easy. There was a drawback that it was impossible to remove the wipe.

SUMMARY OF THE INVENTION An object of the present invention is to provide an unsealing device for stripping a roll of a paper roll, focusing on the above-mentioned conventional problems and enabling the swipe stripping work to be performed simply and quickly as much as possible without manual work. Is what you are trying to do.

[0005]

In order to achieve the above object, an unsealing device for a paper roll or the like according to the present invention is provided with a guide rail extending in the axial direction of the paper roll placed at a fixed position. A traveling means is provided which is guided by a guide rail and is movable in the axial direction of the paper roll. The traveling means has a guide plate portion having a smooth surface following the outer surface of the paper roll and a T-shaped cross section on the outer surface of the guide plate portion. By attaching a cutter having a sharply formed blade tip with a dorsal fin so as to form a roll, the cutter is rolled at a height between the outer surface of the paper roll and the roll packaging wamp. It was configured to move along the axial direction and be attached so that it could be opened in a wrap.

Further, according to another aspect of the present invention, there is provided an opening device for a paper roll or the like, which comprises a roll supporting means having at least a pair of rollers for rotatably supporting the paper roll at a fixed position, and an end surface of the paper roll. Mirror cutter capable of cutting off the mirror surface of a rotating paper roll attached so as to project, a guide plate portion having a smooth surface following the outer surface of the paper roll, and a T-shaped cross section on the outer surface of the guide plate portion. And a side surface one-piece cutter having a sharpened tip of the cutter and a blade portion standing in a dorsal fin shape, and the side-surface one-piece cutter is attached so as to be movable in the axial direction along the outer surface of the paper roll. In this case, negative pressure suction means may be provided for pulling the wamp mirror surface portion outward so that the cutter easily enters and the paper roll and the wamp mirror surface portion are separated from each other.

[0007]

According to the opening device for a paper roll or the like having the above structure, the cutter tip is inserted from the end of the paper roll to the boundary between the one-punch and the roll paper, and the cutter is slid along the axial direction of the roll. Since the cutter has a T-shaped cross section, the guide plate portion smoothly slides along the roll surface, and the blade portion along the roll radial direction is formed to increase its height. It is easily torn and separated from the roll paper. Since the operator simply inserts the tip of the cutter between the wipe and the roll paper and moves the cutter in the roll axial direction, the operator can easily make a cut with only the wipe as a target and perform a stable peeling work.

In the paper roll unsealing device according to the present invention using such a cutter, since the cutter is attached to the traveling means guided by the guide rail, the cutter is semi-automatically traveled to remove the wipe. Can be done. That is, it suffices to perform positioning so that the tip of the cutter is inserted into the boundary portion between the paper roll and the wrapping wrap, and then the wrapping work can be more easily performed by traveling with the guide means.

At this time, a positioning roller is provided at the tip of the cutter to roll in contact with the outer surface of the wound paper roller, and a gap corresponding to the hump thickness is provided between the contact surface of the roller and the contact surface of the cutter. By setting and making the cutter run, it is possible to properly cut only the wamp. Therefore, the insertion position of the cutter can be accurately set, the roll paper is not cut off unnecessarily, and the cutting operation can be performed quickly. in this case,
By providing a reciprocating drive means for the cutter, the opening operation can be automated.

In the unsealing device according to still another aspect of the invention, a paper roll that has been wrap-wrapped in advance is placed on a support roller and rotated, and the mirror-like cutter is projected by an amount corresponding to the wrap thickness. As a result, the mirror surface portion of the wamp is separated, and the mirror surface wamp can be removed. Next, the side face one-piece cutter is set at a predetermined position on the roll end face, that is, at a height between the outer surface of the paper roll and the one side plate, and the side face one-piece cutter is moved in the paper roll axial direction. As a result, the entire surface of the paper roll is opened, and the opening operation can be fully automated. In this case, if the end of the roll paper is damaged by the cutter, it cannot be used.Therefore, the positioning roller is attached to the side wamp cutter to accurately determine the position, and the wamp mirror surface part and the end of the roll paper are separated. The cutter can be easily inserted.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Specific embodiments of the paper roll opening device according to the present invention will be described in detail below with reference to the drawings.

The paper roll 10 is a roll core 12 around which printing paper is wound. For transportation, a roll 14 made of waterproof paper or the like is wound around the outer peripheral surface of the roll paper. The wamp 14 is a side wamp 16 that is wound around the side of the paper roll 10.
And a mirror surface wamp 18 that covers the end face.
Is covered under tension so that it will not loosen.

The wamp 14 that covers the paper roll 10 is removed when the paper is supplied during the printing operation.
4 to 5 show a side surface one-piece cutter 20 which is particularly suitable for removing the side surface one-piece 16. As shown in the drawing, the cutter 20 is provided with a guide plate portion 22 having a curved surface that follows the outer peripheral surface of the paper roll 10 and an outer surface of the guide plate portion 22 which is erected in a fish dorsal fin shape so as to form a T-shaped cross section. It has a cutter shape having a blade portion 24, and the tip of the cutter is sharpened.

That is, the guide plate portion 22 has an arc surface 26 which is equivalent to the outer edge of the target paper roll 10 in its cross section.
And has a bottom shape that can be closely attached to the outer peripheral surface of the paper roll 10. Further, the planar shape of the guide plate portion 22 is such that the tip is tapered and the tip is projected at an acute angle so that it can be easily inserted into the paper gap between the paper roll 10 and the side wamp 16. Has been done.

On the other hand, a blade portion 24 projecting like a dorsal fin of the fish is integrally formed in the center of the back portion of the guide plate portion 22, and forms a shape similar to an inverted T-shape in cross section together with the guide plate portion 22. There is. The height of the blade portion 24 is gradually reduced toward the tip corresponding to the tapered tip shape of the guide plate portion 22, and the cutter 20 gradually reduces the inverted T-shaped cross-sectional area toward the tip. The tip is set to be a sharp tip. The blade portion 24 is formed into a knife-shaped blade or a saw blade shape, and the side surface bump 16 on the upper surface side of the cutter 20 is cut.

The side face one-piece cutter 2 configured as described above
As shown in FIG. 4, 0 is supported in a cantilever state by a grip rod 28 attached to the center of the rear end face, and the surface of the paper roll 10 is moved by axially moving the roll surface portion with the grip rod 28. It is designed so that the wamp 16 wrapped around it is torn and peeled off. In this case, the rod 28
Although the guide plate portion 22 may be directly held by hand to perform the one-peeling work along the paper roll 10, it is possible to improve the accuracy and speed of the work by mechanically supporting and giving a reciprocating motion. Can be held.

Next, the side face one cutter 20 as described above.
With reference to FIGS. 1 to 3, description will be given of an embodiment of a paper roll unsealing device capable of simultaneously removing the mirror surface wamp.

FIG. 1 is a side view of an end portion of the unsealing device, and FIG. 2 is a cross sectional view thereof. As shown, this apparatus is provided with a paper roll supporting means having a pair of parallel driving rollers 30. The pair of rollers 30 are arranged at an interval smaller than the diameter of the paper roll 10 to be opened.
The paper roll 10 placed on it can be rotated at a fixed position. Also, the paper roll 10 to be placed
Negative pressure suction means 32 is installed so as to face both end surfaces of, and is supported by a pedestal 34 arranged between the drive rollers 30. As shown in the drawing, the negative pressure suction means has a suction pipe 36 formed in a radial shape, and has its tip bent to face the mirror surface wamp 18, and the suction pad 40 at the tip sucks the mirror surface wamp 18. You can do it. The suction means 32 is rotatably attached to the gantry 34 via a rotary bearing 42 by a rotary joint or the like so that the suction means 32 can follow the rotation of the roll 10 while adsorbing a mirror surface wamp covering the end face of the paper roll 10. It has become. Alternatively,
A belt 44 for rotation transmission may be wound around the pair of drive rollers 30 and the rotary bearing 42, and the rotational drive force of the motor 46 connected to the drive rollers 30 may be transmitted to the negative pressure suction means 32 for synchronous rotation.

On the other hand, mirror surface one-piece cutters 48 are installed below the both ends of the paper roll 10 placed on the drive roller 30. The cutter 48 is located between the pair of drive rollers 30 and can be moved in and out by driving the cylinder mechanism 50 so that the blade edge is directed in the thickness direction of the paper roll 10. Further, a stopper 52 is attached in parallel with the cutter 48 so that when the cutter 48 is projected toward the surface of the paper roll 10, the cutter blade edge is projected by the thickness of the side wamp 16. As a result, after the paper roll 10 with a hump is placed on the drive roller 30, the cutter 48 is projected and the roller 30 is rotationally driven to rotate once, so that the mirror surface hump 18 portion is a side hump 1.
6 is separated from 6, and the mirror surface wamp 18 is suction-held by the suction pad 40. In order to remove the cut mirror surface wamp 18, although not shown, a transfer device also having a suction pad is installed, and the suction action by the suction means 32 is stopped, and at the same time, it is provided at another position by the suction action by the transport device. It is also lifted and transported to the Wamp Stocker for stocking.

The cutter 48 is capable of tilting the cylinder mechanism 50 so as not to interfere with the driving of a lateral one-piece cutter, which will be described later. When not in use, as shown by an imaginary line in FIG. It can be stored in the pit.

Further, the above apparatus is further provided with a cutter means for removing the side wamp 16. This uses the side one-piece cutter 20 described in the first embodiment. As shown in FIGS. 1 and 2, a pair of guide rails 54 extending along the roller axis direction are attached between the drive rollers 30, and the side one-piece cutter 20 is attached thereto. Trolley 5 to which is attached
I am wearing 6. The side cut cutter 20 is a roller 30
The guide plate 22 is arranged with the belly of the guide plate 22 facing the paper roll 10 placed on top, and the poles 58 are set up on the guide plate 22 on both sides of the blade 24 on the back side. Then, it is attached to the traveling carriage 56 via the pole 58, and can be reciprocated in the axial direction of the roller 30 by the traveling of the carriage 56.

A traveling carriage 5 equipped with a side one-piece cutter 20.
The specific structure of 6 will be described with reference to FIG. The traveling trolley 56 has a trolley body 62 having wheels 60 attached to the side surfaces, and the trolley body 62 is mounted so as to be able to travel along the guide rails 54. A seat plate 66 is attached to the upper surface of the trolley body 62 via a telescopic shaft 64 so that the seat plate 66 can move up and down. A spring is built in the telescopic shaft 64, and elastically biases the seat plate 66 upward.

The pole 58 of the side surface one-piece cutter 20 is erected and fixed on the seat plate 66 of the traveling carriage 56.
Holds the cutter 20. Therefore, the side hump cutter 20 can move up and down together with the seat plate 66.
The ventral surface of the cutter guide plate portion 22 can be brought into contact with the paper roll 10 with an appropriate pressing force. In addition, the pole 58 connecting the seat plate 66 and the side one-piece cutter 20.
Is attached with an arm plate 68 extending toward the tip of the cutter, and an adjusting roller 70 for adjusting the cutting depth is attached to this tip.

The adjusting roller 70 can rotate and come into contact with the paper roll 10 prior to the side one-piece cutter 20, and an upward bracket 72 formed at the tip of the arm plate 68.
It is rotatably supported by. Then, the contact tangent line of the adjusting roller 70 with the paper roll 10 and the side face one cutter 2
The gap t at the height of the cutting edge of 0 is set to be a one-punch thickness. The gap t can be arbitrarily set by changing the mounting position of the arm plate 68 on the pole 58. This is achieved by engraving a screw on the pole 58 and adjusting the position of the nut 74 so that the arm plate 68 is clamped and held by the nut 74 screwed to the pole 58.

For this reason, when the traveling carriage 56 is made to stand by at one end side of the paper roll 10 placed on the drive roll 30 and is made to travel to the lower surface side of the paper roll 10, the adjusting roller 70 is first set. Contact with each other, causing the seat plate 66 to sink. After the adjusting roller 70, the cutting edge of the side face one-piece cutter 20 sticks to the end face of the paper roll 10, but this is set in advance by the adjusting roller 70 so as to be at the boundary position between the main body of the paper roll 10 and the one-punch. Can be cut open properly. Then, by running the traveling carriage 56 in the roll axis direction, it is possible to peel off the entire side surface.

In order to drive the carriage 56 to travel, rope sheaves 76 are arranged at both ends of the guide rail 54, and ropes 78 stretched over the rope sheaves 76 are connected to the carriage main body 62. A motor (not shown) is connected to one of the rope sheaves 76 to control the forward and reverse rotations of the motor.
As a result, the carriage 56 is reciprocally driven, and the side wiper cutter 20 performs the wipe stripping operation and the return operation.

The operation of the unsealing device configured as described above is as follows. First, the one-piece-wrapped paper roll 10 to be unsealed is placed on the pair of drive rollers 30.
Then, the gantry 34 at both ends is brought close to each other, and the negative pressure suction means 32 is brought into contact with the mirror surface wamp 18 on the end surface of the paper roll 10 to adsorb it. After that, the drive roller 30 is rotated to rotate the paper roll 1
Rotate 0. In this state, the cylinder mechanism 50 provided with the mirror surface one-piece cutter 48 which is tilted in advance is erected and extended to drive the cutter 48 to pierce the surface of the paper roll 10. At this time, since the stopper 52 is provided alongside the cutter 48 and abuts against the outer surface of the paper roll 10, the cutting edge of the cutter 48 is inserted to a certain depth, that is, a depth equivalent to the wamp thickness. At this time, the paper roll 10
Is in a rotating state, the mirror surface wamp 18 is separated by one rotation. Since the separated mirror surface wamp 18 is adsorbed by the suction means 32, it is delivered to the conveying means and is carried out to the one-piece stocker. This operation is performed at both ends of the paper roll 10.

When the mirror surface wipe 18 is removed in this manner, the cylinder mechanism 50 is tilted and retracted to a position where the operation of the mirror surface wipe cutter 48 is not hindered. At the same time, the traveling carriage 56 that has been waiting at one end of the paper roll 10 is moved to the end of the paper roll 10 by the rotational drive of the rope sheave 76. When the carriage 56 moves, the adjustment roller 70 at the leading end first rides on the outer surface of the end portion of the paper roll 10, and the height position of the seat plate 66 is adjusted. At this time, the cutting edge of the side surface one-piece cutter 20 is set so as to be pierced at the thickness position corresponding to the side surface one-piece 16 by the gap with the adjusting roller 70. Therefore, the side carriage 16 is torn by moving the traveling carriage 56 along the guide rail 54 and moving it to the opposite end of the paper roll 10. This completes the one-peel stripping operation, so that the paper roll 10 may be conveyed from above the drive roller 30 to the next process position. After the paper roll 10 is unloaded, the traveling carriage 56 is moved to the original position and is made to stand by until the next paper roll 10 is loaded.

As described above, according to this embodiment, the paper roll 1
The packaging wrap 14 of 0 can be automatically opened over the entire surface, and the work that must be done manually can be greatly improved.

It should be noted that in the above-described embodiment, only the side one-piece cutter 20 can be constructed, and in this case, the traveling carriage 56 is not equipped, but a guide rail is provided on the side of the paper roll 10 and the roll is mounted on the guide rail. A swing arm that is movable in the radial direction may be attached, and the side surface one-piece cutter 20 may be attached to the arm.

[0031]

As described above, according to the opening device for a paper roll or the like according to the present invention, the tip of the cutter can be inserted between the wipe and the roll paper so that the wipe cutter can be guided to move in the axial direction of the roll. Therefore, there is an effect that a very simple one-peeling work can be performed by performing the one-mane peeling operation manually or by a mechanical drive, or by simultaneously performing mirror surface one-piece cutting.

[Brief description of drawings]

FIG. 1 is a side sectional view of an opening device according to an embodiment.

FIG. 2 is a cross-sectional view of the device.

FIG. 3 is a perspective view of a side hump cutter and a carriage for mounting the same.

FIG. 4 is a perspective view of a one-putter cutter.

FIG. 5 is an end view showing a working state by the cutter.

[Explanation of symbols]

 10 Paper Roll 14 Wamp 16 Side Wamp 18 Mirror Wamp 20 Side Wamp Cutter 22 Guide Plate Part 24 Blade Part 30 Driving Roller 32 Negative Pressure Suction Means 48 Mirror Surface Wamp Cutter 50 Cylinder Mechanism 52 Stopper 54 Guide Rail 56 Traveling Cart 70 Adjusting Roller

Claims (2)

[Claims] 1. A guide rail is provided along an axial direction of a paper roll placed at a fixed position, and a traveling means is provided which is guided by the guide rail and is movable in the axial direction of the paper roll. Is provided with a guide plate portion having a smooth surface following the outer surface of the paper roll and a blade portion which is erected in a dorsal fin shape so as to form a T-shaped cross section on the outer surface of the guide plate portion, and the cutter tip is sharply formed. By attaching the cutter, the cutter is moved along the roll axial direction at a height between the outer surface of the paper roll and the roll packaging wamp, and the cutter is attached so that the one-punch can be opened. . 2. A roll supporting means having at least a pair of rollers for rotatably supporting a paper roll at a fixed position, and a wamp mirror surface of a rotating paper roll attached so as to project toward an end surface of the paper roll. A cutter having a mirror surface cutter capable of cutting off the paper, a guide plate portion having a smooth surface following the outer surface of the paper roll, and a blade portion erected in a dorsal fin shape so as to form a T-shaped cross section on the outer surface of the guide plate portion. An opening device for a paper roll or the like, comprising: a side face one-piece cutter having a sharp tip, and the side face one-piece cutter is attached so as to be movable in the axial direction along the outer surface of the paper roll.