JP3008589B2 - Web sheet processing equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for continuously feeding a web sheet unwound from a web in which a long sheet is wound into a roll, and performing predetermined processing while appropriately controlling the tension of the web sheet during the feeding. The present invention relates to an apparatus for processing a web sheet.

[0002]

2. Description of the Related Art Generally, a web sheet processing apparatus for performing a predetermined processing while appropriately controlling the tension of a web sheet during feeding is provided with a control mechanism for appropriately controlling the tension of the web sheet during feeding. , Its tension control system, processing purpose, web sheet material used for processing,
Various types have conventionally been used in accordance with processing suitability, types of processing apparatuses, and the like.

For example, generally, as shown in FIG.
A web Wb (We) obtained by winding a long sheet into a roll shape
b) appropriately processing a web mounting portion A provided with a web mounting support shaft portion 1 for rotatably mounting at a rotation center portion thereof and a web sheet Ws continuously unwound from the web Wb. Printing unit, coater unit,
A web sheet processing section B provided with processing means 8 such as a rotary punching unit section, and a buffer such as a vertical load type free roller 10b or 10d for accumulating an appropriate discharge length of the web sheet Ws passing through the processing section B. Mechanism 10
And a sheet discharging section C having
Brake means T (powder brake) for controlling the unwinding rotation speed of the web Wb loaded on the shaft 1
Is provided.

[0004] A leveling roller 2 having a buffer means 3 for reducing the impact of a sudden change in tension, a tension detector 4 and a first detector 4 are provided between the web mounting section A and the web sheet processing section B. A drag roller 5, a dancer roller 6 having a tension setting means 6a and a potentiometer 6b and being urged in one direction by an elastic means 7 such as an air cushion, a spring or a spring; Between the web sheet discharging section C and the web sheet processing section B (for example, a printing unit section, a coater unit section, and a rotary punching unit section), the rotation of the processing means 8 is synchronized (synchronized) with a constant value. It has a second drag roller 9 that rotates at a speed.

[0005] The web sheet Ws unwound from the web Wb is unwound by a first drag roller 5 that rotates while sandwiching the sheet Ws from both sides and is sent forward, and is sent by the tension detector 4 in the middle. The tension of the web sheet Ws to be fed is detected, a brake control signal n ₁ is generated via the brake controller 11 based on the detection signal m ₁ , and the brake means T is appropriately controlled and operated based on the control signal n _1. The tension of the web sheet Ws to be fed between the web mounting portion A and the first drag roller 5 is appropriately controlled by controlling the braking force applied to the unwinding rotation operation of the web Wb rotating about the support shaft portion 1. Is properly controlled.

Incidentally, the dancer roller 6 in the conventional tension control mechanism is the first drag roller 5.
The elasticity means 7 displaces the position following the change in the tension between the second drag roller 9 and the second drag roller 9, and holds the web sheet Ws constantly fed by the elastic urging force of the elasticity means 7. It has the function of imparting a predetermined tensioned transport by the potential energy based on the specific elastic modulus.

The dancer roller 6, which is displaced with potential energy, is provided with tension setting means 6
The amount of displacement from a position (here, the origin) at which a potential energy equal to the set tension set by a is obtained is detected by a potentiometer 6b, and the dancer roller 6 is moved in accordance with a displacement amount detection signal p by the potentiometer 6b. To return to the original position via the drag roller rotation speed controller 12.
The rotation speed of the drag roller 5 is controlled, and the tension of the web sheet Ws fed between the first drag roller 5 and the second drag roller 9 is appropriately controlled to the set tension.

Therefore, in the conventional control mechanism,
The dancer roller 6 having potential energy
The tension when the web sheet Ws is slightly slackened in the transport of the web sheet and the tension is reduced below the set value, or when the transport of the sheet Ws is slightly over-tensioned and the tension is increased to the set value or more, Since it is necessary to control the rotation speed of the first drag roller based on the displacement amount detection signal p after the displacement in a direction such that the potential energy reaches equilibrium, the response to the tension fluctuation is low.

In particular, with the above-mentioned web sheet processing apparatus,
Relatively thick web Wb (eg, 0.15 mm thick)
In the case of manufacturing a paper container blank such as a paper cup or a paper box using a paper container paper of about .about.0.35 mm) or a paper container such as a paper cup or a paper box, the web sheet processing section B includes a plate cylinder and an impression cylinder. Processing means 8 (or a transfer cylinder such as a blanket cylinder between a plate cylinder and an impression cylinder)
(Printing unit) is installed, and a punching and cutting unit and a forming unit are arranged at the subsequent stage of the web sheet discharging unit C.
After applying a desired pattern, character, and coloring to the web sheet Ws unwound from the web Wb by the processing means 8, the ink is appropriately dried and passed through the second drag roller 9, and the free rollers 10b, 10d, etc. Punching and cutting into a predetermined shape by punching and cutting means, forming means, bending means, sticking means and the like (not shown) disposed at the subsequent stage of the web sheet discharge section C provided with the buffer 10; It is manufactured by performing bending, sticking, and the like.

However, as described above, the relatively thick web sheet Ws is continuously unwound from the web Wb mounted on the web mounting portion A with a constant tension, and continuously wound in the direction of the processing means 8 (printing unit). When sending,
For example, in the case of a web Wb printed on a paperboard in advance, the thickness of the printing ink is added to the thickness of the paper, and when the web is unwound into a web sheet state, the web sheet smoothly moves from the web due to blocking of the printing ink. It is not peeled off, and the carton paper itself is thicker than ordinary printing paper (for example, about 0.05 mm to 0.13 mm thick),
Therefore, compared to the normal printing paper, the permissible quality variation in the thickness of the web sheet Ws itself from the start to the end of unwinding is large, and the winding of the paper container paper Wb in the web sheet Ws supply process is not stable, Web diameter r
Cannot be regularly reduced.

[0011] These factors cause irregular addition to the unwinding and feeding of the web sheet in the processing of a relatively thick web sheet, which is one of the factors of the fluctuation of the tension of the web sheet fed in the processing apparatus. . Therefore, it is required to correct and control the fluctuation of the tension with more responsiveness than before.

[0012]

SUMMARY OF THE INVENTION It is an object of the present invention to provide a web sheet processing apparatus in which a change in a web sheet feeding tension is promptly corrected and controlled. It is an object of the present invention to enable processing with a stable tension when processing is performed using a certain web sheet.

[0013]

SUMMARY OF THE INVENTION The present invention provides a web mounting portion having a brake mechanism for rotatably supporting a web and controlling a web rotation torque when a web sheet is unwound from the web, and a web mounting portion for the web mounting portion. A web sheet processing section for continuously processing a web sheet unwound from a mounted web and continuously supplied, and a web sheet discharge section for appropriately discharging a web sheet continuously fed from the processing section are arranged in this order. And, in a web sheet processing apparatus having a control mechanism for controlling the tension of the web sheet during transport, between the web mounting unit and the web sheet processing unit,
At least a first tension detector, a first drag roller that can be driven and rotated independently, a dancer roller having driving means, and a second tension detector in this order, the web sheet processing section and the web sheet discharge section. And a second drag roller that is driven and rotated at a predetermined speed in conjunction with the drive rotation speed of the processing unit, and the brake mechanism of the web mounting unit is configured to detect a tension based on a tension detection signal of the first tension detector. The first drag roller is controlled based on a tension detection signal of a second tension detector, and the dancer roller is controlled by a driving means operating based on a tension detection signal of a second tension detector to increase or decrease the tension. A web sheet processing apparatus characterized in that position movement control is performed in a decreasing direction.

[0014]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The apparatus of the present invention will be described in detail with reference to embodiments. FIG. 1 shows an embodiment of the apparatus according to the present invention. In a sheet mounting portion A, a support shaft portion 1 for rotatably supporting a web Wb and a web sheet Ws unwound from the web Wb are provided.
And a first drag roller 21 for nipping the both sides thereof to move forward and forward, the first drag roller 21 includes:
A pair of opposing rollers, one of which is a drive motor 22 by an independent drive system via a drive rotary shaft 22a.
Is a driving roller 21a (supported by a fixed bearing portion) that rotates by driving, and the other is air pressure such as an air cylinder,
The roller 21b is driven by the pressing means 21c, such as a spring pressure, to be pressed against the one of the rollers 21a facing each other and rotated by the rotation.

The spindle 1 is provided with a brake means T connected to a powder brake 1b via a transmission shaft 1a or the like which can be connected to and rotated by the spindle 1 between the spindle 1 and the first drag roller 21. Is provided with a first tension detector 20, and between the support shaft 1 and the first tension detector 20,
If necessary, the leveling roller 2 is installed.

The first tension detector 20 includes guide rollers 20a, 20b before and after the first tension detector 20 in the web sheet Ws feeding direction, respectively. The guide rollers 20a, the first tension detector 20, the guide rollers The tension of the web sheet Ws that passes through the shaft 20b and travels between the spindle 1 and the first drag roller 21 is detected.

The leveling roller 2 has a dash pot 3a having a buffering function for reducing sudden external force and a spring 3b for obtaining a contraction force. It is rotatably supported.

A second drag roller 30 is provided at a stage subsequent to the first drag roller 21 for unwinding and feeding the web sheet Ws forward, and a dancer is provided between the first drag roller 21 and the second drag roller 30. Roller 2
3, the second tension detector 25, and the processing part B are arranged in this order.

The second drag roller 30 is a pair of opposed rollers, one of which is a drive roller 30a (supported by a fixed bearing), and the other of which is opposed to the one by air pressure such as an air cylinder or spring pressure. A roller 30b that is driven to rotate by being pressed against the roller side, and the driving roller 30a is a processing unit B that is driven and rotated by the main motor M;
The web sheet Ws is nipped from both sides and driven to rotate and fed forward at a predetermined speed in synchronism (synchronization) with the rotation of the processing means 26. The rotation speed of the first drag roller 21 in the preceding stage Is set to the same speed or a speed slightly higher than the speed.

The dancer roller 23 includes a driving means 2
4 (the driving means 24 by an air cylinder in FIG. 1) is rotatably supported at the tip of a rod 24a, and before and after the web sheet Ws feeding direction of the dancer roller 23,
The air cylinder 24 urges the web sheet Ws passing through the guide roller 23a, the dancer roller 23, and the guide roller 23b in a direction to always tension. The second tension detector 25 is provided with guide rollers 25a, respectively, before and after the web sheet Ws feeding direction.
25b, a web sheet that sequentially passes through the guide roller 25a, the second tension detector 25, and the guide roller 25b, and passes through the processing portion B and travels between the dancer roller 23 and the second trag roller 30. This is for detecting the tension of Ws. The processing section B includes appropriate processing means 26 for coating the web sheet Ws to be fed with a resin liquid, performing printing, and performing other surface treatment.

At the subsequent stage of the second drag roller 30, there is provided a web sheet discharge section C, for example, a fixed shaft rotating roller 40a, a gravity weight movable shaft rotating roller 4a as shown in FIG.
0b, a fixed-axis rotating roller 40c, a gravity-weighted movable-axis rotating roller 40d, and fixed-axis rotating rollers 40e and 40f are sequentially provided, and a buffer for storing the transported web sheet Ws sent forward by the second drag roller 30 in a tension state. A free roller 40 having an action is disposed, and a third drag roller 41 is disposed downstream of the free roller 40. In the apparatus of the present invention, the web sheet discharge section C is not limited to this, and can be set to an appropriate structure. or,
As the web sheet discharge section C, it is possible to connect and arrange the free roller 40 and various processing devices, for example, a paper container processing device (a paper container blank manufacturing device, a paper cup forming device, etc.) at the subsequent stage.

The third drag roller 41 discharges the web sheet Ws forward while nipping the web sheet Ws discharged from the free roller 40 direction from both sides and rotating at the same speed as the second drag roller 30. Is what you do. The third drag roller 41 is a pair of opposed rollers, one of which is the second drag roller 3.
A driving roller 41a that is driven and rotated at the same rotation speed as 0;
The other is a driven roller 41b that is pressed against the driving roller 41a and is driven to rotate. The driven roller 41b performs a continuous rotation operation or an intermittent rotation operation. The driving roller 41b does not rotate in the reverse direction with respect to the feeding direction of the web sheet Ws. It is possible to use a brake motor.

According to the present invention, the tension of the web sheet Ws fed between the support shaft 1 and the first drag roller 21 is detected by the first tension detector 20 in real time, and a tension detection signal m ₁ is transmitted. Input to the brake controller 11. Meanwhile, the brake controller 11, a predetermined reference tension signal m _s is set by the tension setting device 11a,
Predetermined brake control signals n ₁ corresponding to the detected the tension detection signal and the reference tension signal and the difference (m ₁ -m _s)
And the powder brake 1b is operated in the direction of increasing or decreasing the braking force on the basis of the brake control signal n ₁ to control the braking force to a predetermined braking force, and the shaft portion on which the web Wb is pivotally mounted. The tension of the web sheet Ws fed between the support shaft 1 and the first drag roller 21 is controlled by increasing or decreasing the braking force on the web sheet Ws.

The first drag roller 21 (rotation speed V
₁ ) and the tension of the web sheet Ws fed between the second drag roller 30 (rotation speed V ₂ ) rotating in conjunction with the processing means 26 is detected in real time by the second tension detector 25, and the tension is detected in real time. A detection signal m ₂ is transmitted and input to the rotation speed control generator 27, while a rotation speed detector 29 such as a rotary encoder is installed on the second drag roller 30, and the rotation speed V of the second drag roller 30 is adjusted. a rotational speed detection signal x _1, which is detected from _2, by inputting the speed control generator 27,
Rotation speed control signal n ₂ (V ₂ = f (x ₁ ), ΔV = f (m
₂ ), V ₁ = V ₂ + ΔV = f (x ₁ ) + f (m ₂ ) = V
₁ , where ΔV is the difference between the rotational speeds for tension adjustment)
The independent drive motor 22 is controlled based on the rotation speed control signal n _2.
By adjusting the rotational speed (revolutions / minute), rotational speed V ₁ of the first drag roller 21 connected to a drive rotation shaft 22a of the independent drive motor 22 is controlled.

As described above, the first drag roller V ₁ and the second drag roller V ₂ maintain their rotational speed difference at f (m ₂ ) = ΔV and start steady rotation. The tension detection signal m of the second tension detector 25
₂ also includes a driving power supply generator 28 (in FIG. 1,
Air pressure supply generator).

[0026] drive force supply Jienereta 28, set tension signal m _s Connect the tension setting device 28a for setting enter, the tension detection signal m ₂ and the reference tension signal m detected
the difference between _s (m ₂ -m _s) the determined driving means 24 (Fig. 1
Then, a drive means control signal n ₃ (in FIG. 1, an air cylinder operation control signal n ₃ ) for controlling and operating a drive means by an air cylinder or a hydraulic cylinder is transmitted, and based on the drive means operation control signal n ₃ , By driving the driving means 24 in the positive driving direction or the negative driving direction, the dancer roller 23 is driven by the guide rollers 23a, 23 on both sides thereof.
close to then separating operation with respect to b, and the direction of the tension detection signal m ₂ approximates infinitely to set tension signal m _s, and controls operation of the dancer roller 23, and the first drag roller 21 second drag roller 30 Is controlled so that the tension of the web sheet Ws to be fed between the first and second positions becomes the set tension.

However, in FIG. 1, the direction in which the pressure of the air input to the driving means 24 by the air cylinder is supplied in the positive direction (the direction in which the rod 24a of the air cylinder 24 extends) or in the negative direction (the rod 24 of the air cylinder 24).
by supplying air pressure a ₁ in either a reducing direction)) to the air cylinder 24, close to separate the rod 24a tip of the dancer roller 23 of the air cylinder 24 on both sides of the guide rollers 23a, relative 23b It is operated in the direction in which the tension detection signal m ₂ approximates infinitely to set tension signal m _s, the controls operate the dancer roller 23, and the first drag roller 21 second drag roller 3
This control is performed so that the tension of the web sheet Ws to be fed between 0 and the set web tension becomes equal to the set tension.

The driving rod 24 of the driving means 24
a position detector 24b is appropriately installed integrally with the position sensor a, and a line encoder, a rotary encoder, or the like is used to detect a transition position having an origin at an intermediate point of the entire displacement width of the dancer roller 23 driven by the driving means 24. The detector 24b is installed.

FIG. 2 is a side view for explaining another embodiment of the device of the present invention. The web mounting portion A has a web Wb mounting arm 1a via a fulcrum 1c, and the web 1b is provided in the middle of the arm 1a. A rotatable support shaft 1 having a web lifting drive 1e (air cylinder) and a web mounting cone for mounting the web Wb on the rod end of the air cylinder is fixed to the tip of the arm 1a. Prepare. Further, a brake means T having a powder flake 1b connected to the support shaft 1 by a shaft or a gear is provided.

The web sheet Ws unwound from the web Wb pivotally mounted on the spindle portion 1 of the web mounting portion A is introduced into the guide roller 70a, and is guided by the guide roller 20a.
The first drag roller 21 is introduced into the first tension detector 20, the guide roller 20b, and the first drag roller 21.
By rotation of the clamping operation and the rotation outer periphery speed V ₁ of the, the web sheet Ws is Okugyo forward at a speed V _1.

The web sheet Ws that has passed through the first drag roller 21 is subsequently introduced into guide rollers 23a, dancer rollers 23, and guide rollers 23b.
The dancer roller 23 is rotatably supported by the tip of a swing arm 23c attached via a fulcrum 23d in a free rotation state, and is perpendicular to the tip of the swing arm 23c or about halfway to the swing arm 23c. Rod 2 of the air cylinder 24 that extends and contracts in the direction via the fulcrum 24b
4a, the air cylinder 24 is provided with a line encoder 24b for setting the operation origin at an intermediate operation point between the extension operation stop point and the contraction stop point, or a position detector 23e such as a rotary encoder at the fulcrum 23d. It is installed, and at the time of starting, the air cylinder 24 starts operating from the operation origin.

Subsequently, the web sheet Ws is introduced into guide rollers 70b and 70c, a guide roller 25a, a second tension detector 25, a guide roller 25b, and a guide roller 70d. (The printing unit in FIG. 2).

The processing means 26 includes an impression cylinder 50, a printing plate cylinder 51, and an anilox roller 5 in order from the left side of FIG.
2. A comb roller 53 is arranged in a one-color printing unit. For example, four-color printing units from a first-color unit to a fourth-color unit are arranged, and the impression cylinder 51 and the printing plate cylinder of each printing unit are arranged. 52, the web sheet Ws is introduced and printing is performed.

Subsequently, after passing through the processing section B, the web sheet Ws is guided by guide rollers 70e, 70f, 7
0 g, through 70k, is introduced into the second drag roller 30, first drag that is shift controlled drive rotational speed based than the second drag roller 30 to the tension detection signal m ₂ of the previous stage of the tension detector 25 The web sheet W sent forward at the feed speed V ₁ by the first drag roller 21 by the drive rotation of the roller 21 (rotational peripheral speed V ₁ ).
s is forwarded at a delivery speed V ₂ of the second drag roller 30 by a predetermined drive rotation (rotation outer peripheral speed V ₂ ) interlocked (synchronized) with the drive rotation speed of the processing means 26 of the processing portion B, by the first drag roller 21 speed difference between the second drag roller 30 (V ₂ -V _1), it is intended to obtain a reference tension m _s previously set.

Subsequently, the web sheet Ws having passed through the second drag roller 30 is supplied to the guide rollers 70i, 70
j, 70k, and then into the web sheet discharge section C to be discharged. The web sheet discharge section C includes, for example, a free roller 40 and a third drag roller 41, and the free roller 40 includes a fixed shaft rotating roller 40a, a gravity-weighted movable shaft rotating roller 40b, and fixed shaft rotating rollers 40c, 40f. A third drag roller 41 (a pair of opposing rollers, one of which is a driving roller 41a, the other of which is a driving roller 41a, and which is continuously driven or intermittently driven at the same speed or a different speed as the second drag roller 30). On the one roller 41a side, there is provided a driven rotary roller 41b) for contacting and pressing by air pressure, hydraulic pressure, and spring pressure. The web sheet discharging section C is not limited to this, but can be set to an appropriate structure.

The discharged web sheet Ws is introduced into sheet-like sheet cutting means or a suitable processing means such as a punching and cutting means for appropriately punching and cutting into a pattern, a shaping processing means, and an adhering means, and a sheet processed article is obtained. What you get.
Further, as the web sheet discharge section C, it is possible to connect and arrange the free roller 40 and various processing devices, for example, a paper container processing device (a paper container blank manufacturing device, a paper cup forming device, etc.) at the subsequent stage.

[0037]

According to the web sheet processing apparatus of the present invention, a dancer roller 23, a second tension detector 25, and a web sheet processing section B are provided in this order between a first drag roller 21 and a second drag roller 30, The dancer roller 23
Is driven by the driving means 24 by itself,
A tension detection signal m ₂ by the second tension detector 25 of the web sheet Ws to Okugyo, so that the difference between the set tension signal m _s set by the tension setting device 27 is substantially zero,
The web sheet Ws is directly and actively tensioned or relaxed by a driving means 24 such as an air cylinder, a hydraulic cylinder, or an electric motor, so that the web sheet Ws is moved between the first drag roller 21 and the second drag roller 30. Of the web sheet Ws to be fed can be controlled, responsive to a tension variation during the feeding with respect to the set tension, and can be fed to the web sheet processing section B with a stable tension.

[0038]

The web sheet processing apparatus of the present invention is used for printing, coating, and other surface treatment processing of web sheets such as printing paper, carton paper, synthetic resin films, fabrics such as fibers, and other laminated films. Applicable regardless of sheet thickness.
In addition, the apparatus of the present invention can perform tension control with responsiveness to a tension fluctuation generated in a web sheet fed in a processing apparatus by a preset tension, and by a stable feeding with little change with respect to a set tension. It is capable of processing a web sheet, and in particular, has a remarkable effect in improving the processing register accuracy in processing a thick web sheet.

[Brief description of the drawings]

FIG. 1 is a schematic side view of an embodiment of the device of the present invention.

FIG. 2 is a schematic side view of another embodiment of the device of the present invention.

FIG. 3 is a schematic side view of a conventional device.

[Explanation of symbols]

A: Web mounting section B: Web sheet processing section C: Web sheet discharge section T: Brake means M: Main motor Wb: Web Ws: Web sheet 1: Support shaft section 2: Leveling roller 3: Buffer means
DESCRIPTION OF SYMBOLS 4 ... Tension detector 5 ... 1st drag roller 6 ... Dancer roller 6a ... Tension setting means 6b ... Potentiometer 7 ... Driving means 8 ... Processing means 9 ... 2nd drag roller 10 ... Buffer 11 ... Brake controller 12 ... Rotation speed controller 13 , 14: guide rollers 15, 16: guide rollers 20: first tension detectors 20a, 20b: guide rollers 21
… First drag roller 22… Independent drive motor 23…
Dancer rollers 23a, 23b ... guide rollers
Reference numeral 24: drive means 25: second tension detector 25a, 25
b: guide roller 26: processing means 27: rotational speed controller 28: driving force supply generator 29: rotational speed detector 30: second drag roller 40: buffer 41: third drag roller 50: impression cylinder 51: printing plate cylinder 52 ... anilox roller 53 ... rubber roller 54 ... reducer 55 ... drive transmission shaft 56 ... drive transmission unit 57 ... top and bottom registration motor 58 ... web sheet feeding speed adjustment unit 59 ... feeding speed adjustment motor

Claims (3)

(57) [Claims] A web mounting portion having a brake mechanism for rotatably supporting the web and controlling a web rotation torque when the web sheet is unwound from the web; and a web mounted on the web mounting portion. A web sheet processing section for continuously processing a web sheet continuously supplied by
In a web sheet processing apparatus provided with a control mechanism for controlling a tension of a web sheet being fed, a web sheet discharge unit for appropriately discharging a web sheet continuously fed from the processing unit is arranged in this order. Between the section and the web sheet processing section, at least a first tension detector, a first drag roller capable of independent variable speed drive rotation, a dancer roller having driving means, and a second tension detector are provided in this order, A second drag roller that is driven and rotated at a predetermined speed in conjunction with the drive rotation speed of the processing unit is provided between the web sheet processing unit and the web sheet discharging unit, and a brake mechanism of the web mounting unit includes a second drag roller. The first drag roller is controlled based on a tension detection signal of a second tension detector, and the dancer roller is controlled based on a tension detection signal of a second tension detector. Is the web sheet processing apparatus characterized by being position movement control to the tension increase or decrease direction by a driving means which operates based on the tension detection signal from the second tension detector. 2. A punching / cutting method for punching and cutting a web sheet in a pattern at a stage subsequent to the web sheet discharge section, wherein the web sheet is a cardboard paper, the web sheet processing section is a paper container printing unit section. 2. A web sheet processing apparatus according to claim 1, wherein said means and a paper container forming means are arranged. 3. The web sheet is a cardboard paper, the web sheet processing section is a paper container printing unit section, and cutting means for cutting the web sheet into leaf sheets is disposed at a stage subsequent to the web sheet discharge section. The web sheet processing apparatus according to claim 1, wherein: