JPH06247597A - Paper joint method and raw paper supply for execution thereof - Google Patents

Abstract

PURPOSE:To perfectly carry out paper joint work by automation. CONSTITUTION:A raw paper roll 28 in which double-side adhesive tape 52 is stuck on the beginning end part of new raw paper is charged on one supporting arm 24, 24 of a mill roll stand 10. Old raw paper drawn out from a raw paper roll 28 charged on the other supporting arm 24, 24 of the mill roll stand 10 is supplied to a paper consumption mechanism through a raw paper storage mechanism 36. By an order change command, rotation of the raw paper roll 28 of old raw paper is stopped, and at the same time the old raw paper stored in the raw paper storage mechanism 36 is supplied to the paper consumption mechanism. A sticking and cutting mechanism opposed to the raw paper roll 28 in stand-by putting the old raw paper between is operated, and the old raw paper is pressed on the outer circumferential face of the raw paper roll 28. Hereby the old raw paper and the beginning end part of the new raw paper are pasted together through the doubleside adhesive tape 52. Next the old raw paper is cut off on the upper stream side of the mutually pasting position for the old and new raw paper.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an old base paper which is fed from a base paper roll loaded in a mill roll stand and is being supplied to a paper consumption mechanism outside the system, and a new base paper roll which is loaded in the stand and is on standby. The present invention relates to a paper splicing method capable of automatically splicing base papers without performing a required setting operation, and a base paper supply apparatus for carrying out the method.

[0002]

2. Description of the Related Art A corrugated sheet having a required pitch is imparted to a core paper, a corrugated corrugated top portion and a liner are glued and adhered to each other to produce a single-sided corrugated board sheet, and a back liner is attached to the single-sided corrugated board sheet. Corrugating machines for producing corrugated board sheets are widely used. This corrugating machine mainly uses a single facer for producing a single-sided corrugated board sheet and a double facer for laminating a back liner on the obtained single-sided corrugated board sheet. Further, as ancillary equipment, a base paper supply device for supplying a web such as a core paper, a liner and a back liner (these webs are referred to as "base paper" hereinafter) to the single facer and the double facer is indispensable.
The raw paper is loaded into the raw paper supply device in the form of a roll having a predetermined diameter (hereinafter referred to as “raw paper roll”) wound around a paper core serving as a core, and the raw paper is fed out and fed here.

As a base paper feeding device used in the corrugating machine, a so-called swing arm type mill roll stand in which an arm extending to one side with respect to a rotating shaft is swung within a required angle range, or a rotating shaft is used. On the other hand, there is known a so-called turnover type mill roll stand in which arms extending in opposite directions rotate integrally. In any type of mill roll stand, one stand is provided with two paired arms, and each pair of arms is configured to be loaded with the base paper roll. Then, while the base paper fed from the base paper roll loaded in one arm pair is being supplied to the paper consumption mechanism, the base paper roll to be used next time can be loaded in the other arm pair.

Above the mill roll stand, a splicing from the old raw paper (preceding use side) fed out to the new raw paper (subsequent use side) due to the order change occurring during the operation of the corrugating machine is performed. An automatic splicer is provided and is configured to allow continuous operation of the corrugated machine. In order to splice the old base paper and the new base paper with this splicer, the base paper roll to be used next time is loaded while the old base paper is being fed out and supplied from the base paper roll loaded in the mill roll stand. Further, the starting end of the new base paper drawn out from the base paper roll is set on the head of the splicer, and the double-sided adhesive tape is attached to the starting end. Then, when the order change command is issued, after the rotation of the base paper roll of the old base paper is stopped, the head is actuated to attach the starting end portion of the new base paper to the old base paper with the double-sided adhesive tape and cut the old base paper. This completes the splicing.

[0005]

In the base paper feeding device, if the splicer is used, a part of the splicing work between the old base paper and the new base paper can be automated. However, while setting the starting end of the new base paper drawn from the base paper roll to be used next time on the head of the splicer,
The preparatory work for attaching the double-sided adhesive tape to the starting end portion still depends on the workers' hands, and thus it has been difficult to achieve complete automation of the paper splicing work. Further, since the preparatory work is performed at a position close to the base paper roll that is rotated by feeding out the old base paper, the worker is forced to perform dangerous work. Moreover, as in the present day, in the corrugated board manufacturing industry that needs to respond to order changes accompanying frequent small-lot production, it is extremely important to shorten the cycle time when exchanging the base paper rolls. However, there is a problem in that the cycle time cannot be sufficiently shortened due to the inclusion of the.

Therefore, a proposal for automatically performing all of the paper splicing work is disclosed in, for example, Japanese Patent Application Laid-Open No. 50-70604. The automatic paper splicing device according to this proposal uses a so-called turnover type mill roll stand in which a new base paper roll is mounted on one support arm and an old base paper roll is mounted on the other support arm. The old base paper roll is continuously fed from the supported old base paper roll, and the new base paper roll supported by the other arm is in a splicing standby state. In this case, the feeding position and the splicing standby position of the old base paper are not fixed, and the base paper feeding position in the immediately preceding order is replaced with the splicing standby position depending on the front and back conditions of the base paper wound on the roll. Or, the base paper feeding operation or the paper splicing operation is continuously performed at the same position without changing the position.

As an example, in FIG. 4 (a) of the publication, at the base paper feeding position close to the paper joint stand 6, the old base paper is fed from the old base paper roll Pa, and at the paper joint standby position separated from this. The new base paper roll Pb is waiting for splicing. When the amount of remaining paper in the old base paper roll Pa decreases as the old base paper is fed out, the mill roll stand 3 turns 180 ° clockwise for splicing the paper, and FIG. 4 (b).
As shown in (1), the new base paper roll Pb is brought to the paper joint position (the previous base paper feeding position) in the vicinity of the paper joint stand 6.
Also, the old base paper roll Pa arrives at the previous splice standby position,
Then, the old base paper is continuously fed out (the supply path of the old base paper at this time passes above the mill roll stand 3). Then, at the timing when the drive roll 29a of the upper swing frame 5a arranged on the paper splicing stand 6 is started and the running speed of the old base paper being fed out is synchronized, the drive roll 29a is moved to the new base paper roll Pb. Pressed against. As a result, the new base paper roll Pb is rotated at the traveling speed of the old base paper. Next, the laminating roll 21a is operated to bond the running old base paper to the rotating new base paper roll Pb, and then the rotary cutter 20a cuts the old base paper to complete a series of paper splicing. In addition, when the roll paper winding surface of the new roll paper Pb is opposite to the surface of the old roll paper, the mill roll stand 3 is rotated counterclockwise by 180 °, and as shown in FIG. The supply path is passed below the mill roll stand 3. When performing splicing, the driving roll 29b, the bonding roll 21b, and the rotary cutter 2 of the lower swing frame 5b arranged on the splicing stand 6 are arranged.
0b is used to perform splicing and cutting in the same procedure as in FIG. 4 (b).

The paper splicing device disclosed in the above-mentioned Japanese Patent Laid-Open No. 50-70604 can certainly achieve automatic paper splicing without requiring manpower. However, in this apparatus, since the old base paper is run at the normal paper feed speed and is spliced with the new base paper that is rapidly accelerated to the paper feed speed, defective or failed splice is often performed. However, there is a serious drawback in that the reliability is poor. In other words, since there is no auxiliary equipment such as dancer rolls or festoons that supplies the base paper with the base paper stored in a predetermined amount, it is ideal to splice the old base paper and the new base paper in a stopped state. There are things that are far from normal. The feeding position of the old base paper and the splicing standby position of the new base paper are not fixed, and it is necessary to always provide two pairs of drive rolls, laminating rolls, and rotary cutters that rapidly accelerate the base paper rolls. It is pointed out that there are drawbacks such as increased equipment cost and complicated maintenance.

[0009]

SUMMARY OF THE INVENTION The present invention has been proposed in view of the above-mentioned drawbacks inherent in the above-mentioned prior art, and has been proposed in order to solve the above-mentioned drawbacks. It is an object of the present invention to provide a paper splicing method that can achieve high automation and a base paper feeding device that can implement the method.

[0010]

SUMMARY OF THE INVENTION In order to overcome the above-mentioned problems and achieve an intended object, the present invention provides a first support arm and a second support arm extending in opposite directions about a rotation axis. A method for splicing base paper using a turnover type mill roll stand in which each support arm is removably loaded with a base paper roll, wherein a base paper feeding position is fixed at a predetermined position of an arm turning locus in the mill roll stand. In addition, the paper splicing standby position is fixedly set at a predetermined position facing the base paper feeding position while sandwiching the rotation axis in the arm turning locus, and the first paper roll to be used next time is loaded. 1 While making the supporting arm stand by at the paper splicing standby position, position the second supporting arm loaded with the currently used base paper roll to the base paper feeding position, The old base paper from the base paper roll is fed toward the base paper storage / supply mechanism outside the system through a path close to the double-sided adhesive tape stuck to the base paper roll waiting at the paper splice standby position, and the base paper roll being fed out. When switching the base paper from the stand-by base paper roll to the standby paper roll command, the pasting command of the old base paper is sandwiched between the base paper rolls and the sticking mechanism provided at the paper joint standby position is activated to operate the old base paper being fed out. By pressing the double-sided adhesive tape adhered to the standby base paper roll, the new base paper of the standby base paper roll and the old base paper are spliced, and the old base paper is cut upstream from the splicing position. The new base paper, which has been spliced, is fed from the base paper roll loaded on the first support arm at the splice standby position toward the base paper storage / supply mechanism outside the system, and the old base paper roll that has been used first After removing from the second supporting arm at the base paper feeding position, the base paper roll to be used next time with the double-sided adhesive tape attached to the starting end portion of the base paper is loaded on the second supporting arm, and then the mill roll stand is approximately halved. By rotating, the second support arm loaded with the base paper roll to be used next time is made to stand by at the paper splice standby position, and the first support arm loaded with the base paper roll in use is placed in the base paper feeding position. The new raw paper from the raw paper roll in use is continuously fed out of the system through the raw paper storage / supply mechanism.

In order to preferably carry out the above-mentioned method, a base paper feeding apparatus according to another invention of the present application is provided with a first support arm and a second support arm extending in opposite directions about a rotation axis, A turnover-type mill roll stand in which a base paper roll is removably loaded on a support arm, and a paper splicing standby position fixedly set in the arm turning locus of the mill roll stand. Double-sided adhesive pasted on the base paper roll waiting at the paper splicing standby position, sandwiching the feeding path of the old base paper fed from the base paper roll located at the fixed base paper feed position fixed across the rotation axis. The pasting / cutting mechanism facing the tape and the base paper roll loaded on the support arm located at the base paper feeding position are provided on the downstream side of the old base paper being fed, and are fed toward the paper consumption mechanism outside the system. Characterized by being composed of a base paper storage supply mechanism for also supplied with storing the old web by a required amount.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, a paper splicing method according to the present invention will be described below with reference to the accompanying drawings, with reference to preferred embodiments in relation to an apparatus capable of suitably carrying out the method. FIG. 1 is a front view schematically showing a base paper supply device according to an embodiment, and a mill roll stand 10 of a turnover type is adopted. That is, as shown in FIG. 2, the rotating shafts 14 are rotatably supported at opposite positions of the side walls 12, 12 which are erected at a predetermined distance from each other.
4, 4 and 14 are configured to rotate synchronously (360 °) via the drive motor 16 and the power transmission means 18. A supporting plate 20 having the shape shown in the figure is fixed to the ends of the respective rotating shafts 14 projecting inwardly of the side walls 12 so as to integrally rotate at their central portions. Also, the supporting plate 2 facing each other
A pair of guide shafts 22 and 22 are installed between both ends of the guide shafts 22 and 22 separated from the 0 and 20 rotary shafts 14 and 14, respectively.
The bases of the pair of support arms 24, 24 are slidably arranged on the second side. And a pair of support arms 24, 24,
An electric motor or a cylinder (neither is shown) can relatively move in the approaching direction and the separating direction.

As shown in FIG.
As shown in FIG. 3, a center block 26 that projects toward the tip of the other pair of support arms 24 is fixed, and the center paper roll 2 is supported by both center blocks 26, 26.
8 paper tubes can be chucked from both sides. That is, in the mill roll stand 10, the support plates 20, 2
Two arm pairs are provided between 0, and the base paper roll 28 can be loaded in each arm pair. In addition, in the mill roll stand 10 of the embodiment, in consideration of the weight balance and the like when the base paper rolls 28, 28 are loaded, the support plate 20,
It is set so that the tips of the pair of arms arranged in 20 extend in mutually different directions. Then, as shown in FIG.
The center blocks 26, 26 in the pair of arms are configured so that normal operation is performed in a posture in which the centers of the center blocks 26, 26 substantially horizontally coincide with the center of the rotating shaft 14. In FIG. 1, the base paper feeding position FP is fixedly set on the left side of the turning shaft 14 and on the arm turning locus of the mill roll stand 10, and on the right side of the turning shaft 14 and of the mill roll stand 10. The paper joining standby position WP is fixedly set on the arm turning locus.

As shown in FIG. 1, brackets 30 of the illustrated shape extending in the direction opposite to the extending direction of the corresponding supporting arm 24 are arranged and fixed at both ends of the supporting plate 20, respectively. A pair of guide rollers 32, 32 is rotatably installed between the brackets 30, 30. And
The old base paper OW fed from the base paper roll 28 loaded between the corresponding supporting arms 24, 24 is the guide roller 3
It is configured to be supplied to the base paper storage / supply mechanism 36 described later via 2, 32. Also, this guide roller 32,3
2 indicates that the old raw paper OW, which is fed from the raw paper roll 28 facing the raw paper feeding position FP and is supplied to the raw paper storage / supply mechanism 36, is moved to the paper splicing standby position WP even if the diameter of the raw paper roll 28 is changed. It functions to always run in a position where it does not interfere with the facing base paper roll 28. A braking means (not shown) is coaxially arranged on the center block 26 in order to prevent excessive feeding of the raw paper due to inertia during rotation of the raw paper roll 28. Braking is applied to the rotation. Further, the center block 26 has a base paper roll 28
A rewinding device (not shown) is provided so that the old base paper OW hanging from the roll 28 can be rewound when the old base paper OW is cut during the paper splicing operation described later.

As shown in FIG. 1, a known base paper storage / supply mechanism 36 composed of a large number of dancer rollers 34 is disposed above the side walls 12 and 12, and the base paper roll 28 is provided.
The old base paper OW fed from the guide roller 32, 3
It is supplied to the base paper storage / supply mechanism 36 via 2. Further, the old base paper OW is wound around the dancer roller group of the base paper storage / supply mechanism 36 in a required pattern and then supplied to the paper consumption mechanism outside the system. Reference numeral 37 denotes a fixed idler roller rotatably installed on the side of the both side plates 12, 12 which is separated from the base paper feeding position FP, and is fed from the base paper roll 28 at the base paper feeding position FP to guide the guide rollers 32, 32. The old base paper OW that has passed through the base paper storage and supply mechanism 3 is passed through a plurality of fixed idler rollers 37.
You will be guided to 6.

At a position upstream of the base paper storage / supply mechanism 36 in the base paper supply direction, and at a position facing the base paper roll 28 with the old base paper OW running below the base paper roll 28 facing the splicing standby position WP interposed therebetween. The old base paper OW being supplied and the starting end of the new base paper NW on standby are pasted together, and the old base paper O
A sticking / cutting mechanism 38 for cutting the W is provided. That is, as shown in FIG. 2, a pair of guide shafts 40, 40 are arranged in parallel on the facing surfaces of the side walls 12, 12.
A holding member 42 is slidably arranged on each shaft 40. A pair of rollers 44, 44 are rotatably pivoted between the pair of holding members 42, 42 facing each other at a predetermined interval in the raw paper supply direction, and an endless belt 46 is wound between the rollers 44, 44. ing. A piston rod 48a of a hydraulic cylinder 48 disposed on each side wall 12 is connected to each holding member 42, and the pair of hydraulic cylinders 48, 48 are synchronously biased in the forward and reverse directions to hold the holding members 42, 42.
Moves back and forth along the guide shafts 40, 40. In addition, the guide shafts 40, 40 are provided at the splicing standby position WP.
The endless belt 46, which is positioned so as to be oriented to the axis of the base paper roll 28 facing the front end of the base paper roll 28, can be brought into contact with the outer peripheral surface of the base paper roll 28 via the old base paper OW. Has become. Endless belt 4
The width dimension of 6 is set longer than the width dimension of various base paper rolls 28 loaded in the mill roll stand 10, and the entire width direction of the old base paper OW can be abutted over the entire width direction of the new base paper NW. Is composed of.

A small-diameter auxiliary roller 50 is rotatably arranged between the rollers 44, 44 between the holding members 42, 42 so that the endless belt 46 abuts the outer peripheral surface of the base paper roll 28. At this time, the belt 46 is prevented from bending downward. Further, as shown in FIG. 1, on the upstream side of the holding members 42, 42, a knife 51 for cutting the old raw paper OW across the width direction is provided on the upstream side of the pasting portion between the old raw paper OW and the new raw paper NW. To be done. This knife 51
Is always retracted to a position away from the traveling path of the old raw paper OW, and when the old raw paper OW is brought into contact with the new raw paper NW by the endless belt 46, the old raw paper OW is actuated by a driving means (not shown). Is configured to disconnect.

On the mill roll stand 10, the starting end portion (double-sided adhesive tape 52) of the base paper roll 28 facing the paper splicing standby position WP is attached to the sticking / cutting mechanism 3
A means for positioning is provided at a position opposed to 8. As shown in FIG. 3, the positioning means is composed of a sensor 54 for detecting the starting end portion of the base paper and a driving means 56 for rotating the base paper roll 28 loaded between the support arms 24, 24 in a required direction. . As shown in the drawing, the drive means 56 is provided with a reverse screw shaft 58 extending in parallel with the axis of the base paper roll 28, and a pair of drive motors 60, 60 are provided with nuts 62, 62 on the reverse screw shaft 58. It is arranged via each. Further, the reverse screw shaft 58 is connected to an adjusting motor 64, and by rotating the reverse screw shaft 58 in the forward and reverse directions by the motor 64, the pair of drive motors 60, 60 are moved toward and away from each other. .

A cone-shaped rotating body 66 is connected to the output shaft of each drive motor 60 via a one-way clutch 68, and when both motors 60, 60 are brought close to each other, both rotating bodies 66, 66 is configured to contact both widthwise end surfaces of the base paper roll 28. Then, by rotating the rotating bodies 66, 66 in opposite directions by the drive motors 60, 60 in this state, the base paper roll 28 is rotated in the required direction. Further, the sensor 54 and the driving means 56 are connected to a control means (not shown), and when the sensor 54 detects the starting end portion of the new raw paper NW in the raw paper roll 28 rotated by the driving means 56, the driving means 56 is driven. It is set to stop and position the starting end portion at a position facing the pasting / cutting mechanism 38.

As shown in FIG. 1, a carriage 70 can be carried in below the pair of arms facing the base paper feeding position FP of the mill roll stand 10, and the paper splicing is completed through the carriage 70 for use. The base paper roll 28 that has already been used is carried out, or the base paper roll 28 that is to be used next time is carried into the stand for loading into the arm pair.

[0021]

Operation of the Embodiment Next, the operation of the base paper feeding apparatus according to the embodiment thus constructed will be described below in relation to the paper splicing method. As shown in FIG. 1, the base paper feeding position F
The old base paper OW fed from the base paper roll 28 loaded on the arm pair facing P is passed between the standby base paper roll 28 and the sticking / cutting mechanism 38 via the guide rollers 32, 32. It is supplied to the paper consumption mechanism outside the system via the base paper storage / supply mechanism 36. Further, the pair of arms facing the paper splicing standby position WP is loaded with the base paper roll 28 to be used next time, and the double-sided adhesive tape 52 previously attached to the starting end portion of the new base paper NW is attached to the pair of arms. -It is positioned at a position facing the cutting mechanism 38.
The start end of the new base paper NW is attached to the roll 28 by the double-sided adhesive tape 52 so that it does not hang down.

When an order change command (paper splicing command) for the base paper is issued due to the order change that occurs during the operation of the corrugating machine, the hydraulic cylinder 4 of the sticking / cutting mechanism 38.
8, 48 are urged in a direction to extend the piston rods 48a, 48a, and the holding members 42, 42 move closer to the base paper roll 28 on standby along the guide shafts 40, 40. As a result, as shown in FIG. 4, the old base paper OW being fed and supplied through the endless belt 46 is brought into contact with the outer peripheral surface of the stand-by base paper roll 28. As mentioned above,
Since the double-sided adhesive tape 52 faces the position where the base paper roll 28 in the standby state faces the sticking / cutting mechanism 38, the old base paper OW is stuck to the tape 52. Further, the knife 51 disposed on the upstream side of the sticking / cutting mechanism 38 is operated to cut the old raw paper OW on the upstream side of the sticking portion between the new raw paper NW and the old raw paper OW. The portion of the old base paper OW that hangs down from the base paper roll 28 is rewound onto the roll 28 via a rewinding device provided in the center block 26.

Here, when the old raw paper OW being fed out and fed through the endless belt 46 is brought into contact with the outer peripheral surface of the waiting raw paper roll 28, the braking force (the stopped weight) is applied to the old raw paper OW. Is generated due to the contact with the large base paper roll 28), and the feeding speed is reduced, and a speed difference is generated between the supply speed of the base paper on the paper consuming mechanism side. At this time, the base paper storage / supply mechanism 36
The dancer roller 34 of (1) moves (see FIG. 5), and the old base paper OW stored in the storage mechanism 36 is supplied to the paper consuming mechanism. That is, the old base paper OW is supplied to the paper consumption mechanism at a constant supply speed even during the paper splicing operation between the old base paper OW and the new base paper NW.

When the hydraulic cylinders 48, 48 are reversely biased to separate the endless belt 46 from the base paper roll 28 and the braking means of the center blocks 26, 26 is released, as shown in FIG. The new base paper N continues to be consumed after the old base paper OW remaining in No. 36 is consumed.
W is supplied to the paper consumption mechanism. Further, since the endless belt 46 runs in the direction of supplying the base paper, the running of the new base paper NW in contact with the endless belt 46 will not be hindered. Further, the base paper storage / supply mechanism 36 returns to the initial storage state.

When the splicing of the old base paper OW and the new base paper NW is completed, the used base paper roll 28 loaded on the arm pair facing the base paper feeding position FP is replaced with the base paper roll 28 for the next use. Work is done. That is, in a state where the carriage 70 is carried in below the base paper roll 28 facing the base paper feeding position FP, the rotary shaft 14,
14 is rotated counterclockwise to move the base paper roll 28 to the carriage 7
Bring it closer to the 0 mounting surface. Then, the support arms 24, 24
By separating them from each other, the base paper roll 28 is detached from the arm pair and transferred to the carriage 70. After the carriage 70 is carried out, another carriage 70 on which the base paper roll 28 to be used next time is placed is carried below the arm pair. In the base paper roll 28 to be used next time, the double-sided adhesive tape 52 is previously attached to the starting end of the base paper.

After rotating the rotating shafts 14, 14 to center the center blocks 26, 26 of the pair of arms and the paper tube of the base paper roll 28, both supporting arms 24,
The base paper roll 28 is chucked by the center blocks 26, 26 by bringing the paper rolls 24 close to each other (see FIG. 6).
reference). Next, as shown in FIG. 7, the rotary shafts 14, 14 are rotated clockwise to move the base paper roll 28 of the old base paper OW (previously new base paper NW) currently being supplied to the base paper feeding position FP shown in FIG. The newly loaded base paper roll 2
8 to the paper splice standby position WP. At this time, the old raw paper OW being fed out and fed from the raw paper roll 28 is guided through the guide rollers 32, 32 so as to travel in a position where it does not interfere with the raw paper roll 28 facing the paper splice standby position WP. In addition, the new base paper roll 28 is placed at the splice standby position WP.
When a pair of rotating bodies 66, 66 of the driving means 56 in the positioning means shown in FIG. 3 come into contact with both end surfaces of the base paper roll 28, the rotating bodies 66, 66 rotate in mutually opposite directions. The base paper roll 28 is rotated. Then, when the sensor 54 detects the starting end portion (double-sided adhesive tape 52) of the new base paper NW to be used next time, the driving means 56.
Stopping the base paper roll 28 at a position where the double-sided adhesive tape 52 attached to the starting end of the new base paper NW faces the attaching / cutting mechanism 38, and the base paper roll 28 is stopped.
Will wait for the next splice.

As described above, according to the base paper feeding apparatus of the present embodiment, before loading the base paper roll to be used next time into the mill roll stand, the double-sided adhesive tape is attached to the starting end of the base paper in advance. By simply putting it in place, it is possible to automatically splice the old base paper and the new base paper without the need for manual work by the operator. That is, since there is no human intervention after the base roll is loaded on the mill roll stand,
The cycle time required for replacing the base paper can be shortened,
Workers can be freed from dangerous work. Further, by completely automating the paper splicing work, it becomes possible to achieve full automation in the corrugated machine.

[0028]

[Another embodiment] FIG. 9 shows another embodiment of the base paper supply device according to the present invention. Two base paper supply devices according to the embodiment of FIG. , One for liner) and a conveyor 72 for loading and unloading the base paper roll 28 is provided between both mill roll stands 10, 10. In this embodiment, the side toward the conveyor 72 with respect to the rotary shafts 14, 14 is the base paper feeding position FP, and the old base paper rolls OW, OW fed from the base paper rolls 28, 28 facing the base paper feeding position FP. Are supplied to the paper consuming mechanism via the respective base paper storage / supply mechanisms 36, 36 arranged on the upper side. As the conveyor 72, in the figure, a new base paper roll 28 is carried in from the front side, and a used base paper roll 28 is carried out from the rear side, or a method of carrying in and carrying out the base paper roll 28 only from the front side. Etc. can be appropriately adopted depending on the installation space.

FIG. 10 shows still another embodiment, in which the base paper storage mechanism 36 is connected to the mill roll stand 1.
Two of the base paper feeding devices arranged on the side of 0 are arranged in series. That is, both mill roll stands 10,1
The base paper storage / supply mechanisms 36, 36 capable of storing a required amount of the old base paper OW, OW delivered from the base paper rolls 28, 28 facing the base paper delivery position FP are disposed on the side portions separated by 0. Each old base paper O is fed through the supply mechanism 36, 36.
W and OW are supplied to the paper consumption mechanism. In this example,
A base paper storage / supply mechanism 36 is provided above the mill roll stand 10.
Since it is not provided, the height of the entire device can be set low.

In the embodiment, the case where the driving means is separately provided as a means for rotating the base paper roll in order to position the starting end portion of the base paper roll at a position facing the pasting / cutting mechanism has been described. The base paper roll may be rotated by using the rewinding device provided in the above. Further, when loading the base paper roll to the arm pair, the center of the center block is made to coincide with the center of the paper tube of the base paper roll placed on the carriage by rotating the rotary shaft. It is also possible to dispose them and raise and lower the lifter to center the paper tube of the base paper roll and the center block. Further, although the paper splicing work at the time of the order change command is described in the embodiment, when the same kind of base paper is continuously supplied to the paper consuming mechanism, the remaining amount of the base paper being fed out is a predetermined amount. It is needless to say that the paper splicing operation can be performed fully automatically even when the paper is spliced to the new base paper roll.

[0031]

As described above, according to the paper splicing method and the base paper feeding apparatus for carrying out the same according to the present invention, after loading the base paper roll on the mill roll stand, the old base paper can be replaced with the old base paper without manpower. It is possible to automatically splice paper with new base paper. As a result, the cycle time required to replace the base paper roll can be shortened, and the worker can be freed from dangerous work. Further, by completely automating the paper splicing work in the base paper feeding device, it becomes possible to achieve full automation in the corrugated machine. Further, the automatic paper splicing device disclosed in the above-mentioned Japanese Patent Laid-Open Publication No. 50-70604 causes a defect or unsuccessful paper splicing, resulting in poor reliability, and an acceleration drive roll or a laminating roll. Also, the disadvantages such as the increase in manufacturing cost due to the disposition of are also eliminated.

[Brief description of drawings]

FIG. 1 is a front view schematically showing a base paper supply device according to a preferred embodiment of the present invention.

FIG. 2 is a side view of the base paper supply device shown in FIG.

FIG. 3 is an explanatory view of a base paper roll positioning unit adopted in the base paper supply device shown in FIG.

FIG. 4 is an explanatory view showing a state in which an old base paper is brought into contact with an outer peripheral surface of a base paper roll on standby by a sticking / cutting mechanism when the base paper supply device shown in FIG. 1 is operated.

FIG. 5 is an explanatory diagram showing a state in which an old base paper is attached to a new base paper when the base paper supply device shown in FIG. 1 is operated.

FIG. 6 is an explanatory diagram showing a state in which a used base paper roll is replaced with a base paper roll to be used next time when the base paper supply device shown in FIG. 1 is operated.

FIG. 7 is an explanatory diagram showing a state in which the rotary shaft is rotated with the base paper roll to be used next time being loaded, when the base paper supply device shown in FIG. 1 is operated.

FIG. 8 shows a state in which, when the base paper supply device shown in FIG. 1 is operated, the base paper roll of the old base paper currently in use faces the base paper feeding position, and the base paper roll to be used next faces the splicing standby position. It is an explanatory view shown.

FIG. 9 is a front view schematically showing a base paper feeding device according to another preferred embodiment of the present invention.

FIG. 10 is a front view schematically showing a base paper feeding device according to still another preferred embodiment of the present invention.

[Explanation of symbols]

 10 Mill roll stand 14 Rotating shaft 20 Support plate 24 Support arm 28 Base paper roll 36 Base paper storage / supply mechanism 38 Adhesion / cutting mechanism 52 Double-sided adhesive tape 54 Sensor 56 Drive means OW Old base paper NW New base paper FP Base paper feeding position WP Paper joint Standby position

Claims (5)

[Claims] 1. A first support arm (24, 24) and a second support arm extending in opposite directions centering on a rotary shaft (14).
Equipped with (24,24), each support arm (24,24) has a base paper roll (28)
Is a method for splicing base paper using a turnover type mill roll stand (10) that is detachably loaded, wherein the base paper feeding position (FP) is set at a predetermined position of the arm turning locus in the mill roll stand (10). In addition to fixedly setting, the paper splice standby position (WP) is fixedly set at a predetermined position facing the base paper feeding position (FP) while sandwiching the rotary shaft (14) in the arm turning locus, and next time. The first supporting arm (24, 24) loaded with the raw paper roll (28) to be used is made to stand by at the paper splice standby position (WP), and the second roll loaded with the raw paper roll (28) currently in use is loaded. The support arm (24, 24) is positioned at the base paper feeding position (FP), and the old base paper (OW) from the base paper roll (28) in use is waiting at the paper splice standby position (WP). Storage and supply of base paper outside the system via a route close to the double-sided adhesive tape (52) attached to the base paper roll (28) Rolling out toward the mechanism (36), from the roll of base paper (28) being fed out to the roll of base paper (28) waiting
When switching to the base paper, the required paper splicing command will sandwich the feeding path of the old base paper (OW) to the paper splice standby position (WP).
By activating the sticking mechanism (38) provided in the above, by pressing the old base paper (OW) being fed out to the double-sided adhesive tape (52) stuck to the stand-by base paper roll (28), Base paper roll (2
8) The new base paper (NW) and the old base paper (OW) are spliced, and the old base paper (OW) is cut upstream from the splicing position, and the new base paper (NW) is spliced. To the paper splice standby position (W
Paper roll loaded on the first support arm (24, 24) in (P)
The second support arm (24, 24) at the base paper feed-out position (FP), in which the old base paper roll (28), which is continuously fed out from the base paper storage / supply mechanism (36) outside the system (28), is used After being removed from the base paper, the base paper roll (28) to be used next time with the double-sided adhesive tape (52) attached to the starting end of the base paper is attached to the second support arm (24, 2).
4), and then the mill roll stand (10) is rotated approximately half a turn to move the second support arm (24, 24) loaded with the base paper roll (28) to be used next time to the paper splice standby position. (WP), the first support arm (24, 24) loaded with the base paper roll (28) in use arrives at the base paper feeding position (FP), and the base paper roll in use (28)
A paper splicing method with a turnover type mill roll stand, characterized in that the new raw paper (NW) from (1) is continuously fed out of the system via the raw paper storage and supply mechanism (36). 2. When the feeding speed of the old base paper (OW) is lowered by pressing the old base paper (OW) against the outer peripheral surface of the base paper roll (28) in a standby state by the pasting mechanism (38), The base paper storage and supply mechanism (36) to compensate for the shortage due to the speed decrease
2. The method of splicing paper with a turnover type mill roll stand according to claim 1, wherein the old raw paper (OW) for the stored portion is fed out to the outside. 3. A first support arm (24, 24) and a second support arm (24, 2) extending in opposite directions about the rotary shaft (14).
4), a turnover type mill roll stand (10) in which each support arm (24, 24) is removably loaded with a base paper roll (28), and the arm roll trajectory of the mill roll stand (10) It is arranged at the paper splice standby position (WP) fixedly fixed to the base, and the base paper feeding position fixedly fixed by sandwiching the rotary shaft (14) in the locus.
The old base paper (O) fed from the base paper roll (28) located in (FP)
Double-sided adhesive tape (52) stuck to the base paper roll (28) waiting at the paper splice standby position (WP) while sandwiching the feeding path of (W)
And a sticking / cutting mechanism (38) facing the support arm (24, 24) located at the base paper feeding position (FP).
It is provided on the downstream side of the old raw paper (OW) being fed from the raw paper roll (28) loaded into the paper and stores the required amount of the old raw paper (OW) fed toward the paper consumption mechanism outside the system and also supplies it. A raw paper supply device comprising a raw paper storage and supply mechanism (36) for performing the operation. 4. The base paper supply device according to claim 3, wherein the base paper storage mechanism (36) is disposed above the mill roll stand (10). 5. The base paper supply device according to claim 3, wherein the base paper storage mechanism (36) is arranged at a side portion of the mill roll stand (10).