JP2535277B2 - Winding roll discharge device of web winding device - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a winding roll discharging device for a web winding device. More specifically, the present invention relates to a winding roll discharge device of a web winding device used for rewinding paper from a relatively large parent roll paper and rewinding it into a plurality of relatively small consumer rolls. Typical examples of consumer rolls include toilet paper, towel paper, copy paper, and wallpaper .

[0002]

2. Description of the Related Art In the web winding device as described above, a long web is cut into a desired length, the log is wound, and then the log is discharged.
It is equipped with a winding roll discharge device as seen in Japanese Patent Publication No. As shown in FIGS. 5 and 6, the web winding device includes a second drum 130 that rotates at a peripheral speed substantially the same as the supply speed of the web 101, and a material that forms a winding roll from the second drum 130. It has a first drum 110 which is separated by a distance corresponding to the diameter of the winding core 107, rotates at the same peripheral speed as the second drum 130, and guides the supplied web 101, and further has a roll 105. A winding roll discharge device including a pressing drum 150 that holds the winding roll 105 during winding, and a discharge plate 160 that rapidly enters between the winding roll 105 and the second drum 130 when the winding roll 105 is discharged. Is equipped with.

In this device, the second core is used when the core is replaced.
The speed of the drum 130 is temporarily slowed down so that the drum 11
New core 1 between 0 and 130 and towards the web 101
07, the new core 10 wound with the web 101 is wound.
Move 7 forward. On the other hand, the winding roll 105 causes the second drum 13 to move due to a difference in peripheral speed between the pressing drum 150 and the second drum 130 due to a decrease in peripheral speed of the second drum 130.
While rolling over 0, it is displaced to the right in the figure, and the pressing drum 15
It is separated from the first drum 110 while still in contact with 0 (see FIG. 5). From this state, when the discharge plate 160 is rapidly inserted in the direction of the arrow f as shown in FIG. 6 by an appropriate mechanical device, the flat surface 161 of the discharge plate 160 is inserted between the second drum 130 and the winding roll 105. The winding roll 105 is suddenly discharged to the outside.

[0004]

However, in the conventional winding roll discharging device, the discharging of the winding roll 105 to the web discharging side is performed by the second drum 130 and the pressing drum 1.
It is made by the difference in peripheral speed of 50, and the first drum 110 is not involved. Therefore, in the conventional device, the winding roll 105
From the winding space formed by the first drum 110, the second drum 130 and the pressing drum 150 to the second drum.
In order to displace the drum 130 to the opposite side in the rotational direction,
As shown in, the second drum 130, the winding roll 105, and the pressing drum 150 are arranged so as to be substantially in a straight line. This is because the pressing drum 150 is the winding roll 105.
When the winding roll 105 is arranged closer to the discharge side than the winding roll 105, the winding roll 105 cannot be taken out of the winding space, and the pressing drum 150 is located on the opposite side of the winding roll 105 from the discharging direction of the winding roll 105. In the case where the winding plate 105 is arranged, the winding roll 105 is placed on the second drum 1 before the discharge plate 160 is inserted between the second drum 130 and the winding roll 105.
This is because it will jump out to the side opposite to the rotational direction of 30. That is, in order to quickly discharge the winding roll 105 from the winding space, the second drum 130 and the winding roll 105 may be discharged.
This is because it is optimal to arrange the pressing drum 150 and the pressing drum 150 so as to be substantially in a straight line.

However, in the arrangement in which the second drum 130, the winding roll 105, and the pressing drum 150 are substantially aligned with each other, the winding roll 105 is formed by one point on the second drum 130 and one point on the pressing drum 150. Since it is wound as a point support and there is no means for restricting the winding roll 105 on the discharge side of the winding roll 105, the winding roll 105 becomes unstable. Therefore, when the web 101 is softly wound at a high speed, the winding roll 105 vibrates to cause wrinkles on the winding roll 105, and when the vibration becomes large, the winding roll 105 jumps to the discharge side. In a type of web winding device that does not use a core shaft, the winding of the web 101 may become unstable due to bending or deformation of the core.
Is susceptible to vibration. Further, in the conventional web winding device, it is optimum that the second drum 130, the winding roll 105, and the pressing drum 150 are arranged so as to be substantially in line with each other. The arrangement of the pressing drum 150 must be changed according to the size of the diameter, which causes a problem that the work efficiency is reduced.

In view of the above circumstances, the present invention stably supports and winds the winding roll so that the winding roll is not wrinkled, and the winding roll is quickly discharged from the winding space on the discharge side of the winding roll. It is an object of the present invention to provide a take-up roll discharging device for a web winding device that can be discharged to the web and that can efficiently perform winding work regardless of the diameter of the winding roll.

[0007]

Winding up a roll ejector web winding apparatus of the present invention SUMMARY OF] includes a first take-up roll contact and the second take-up roll rotating at a fixed position, the first take-up roll When the winding core insertion device for inserting the core between the second take-up roll, there is laterally of the first take-up roll
Te positioned above the second take-up roll can lift up and down
A is a Do diameter control roll small diameter, the first take-up roll, the take-up roll taken up by the take-up space formed by the second take-up roll and the diameter control roll, the
Consists of a winding up roll discharge device for discharging from between 2 take-up roll and the diameter control roll, the second take-up
Hoisting that is rotated by rolls and diameter control rolls
The rotation direction of the roll is the same as that of the second winding roll and the diameter control roll.
And a rake having a plurality of tongue-shaped tip portions extending from the base plate , the roll ejecting device controlling the elevation of the diameter control roll by the cam ejecting control means. -Shaped log brake and the controller that controls the top and bottom of the log brake.
And the log brake,
The tip portion of the second winding roll on the upper surface side is
It fits loosely in a plurality of annular grooves formed on the surface of the second take- up roll, and also in the discharge direction from the center of the lower surface of the take-up roll.
Positioned so that the base end can be swung freely
The cam type vertical movement control means is
When the roll is thick , swing the log brake.
Te, the leading edge of that is adapted to rise above the surface of the second take-up roll, the cam type of the diameter control roll
Elevation control means may increase the diameter control roll according thickening winding of the winding up roll, that at the time of discharging in contact with the outer circumference of the winding up roll, and in which is raised to a position that allows movement in the discharge direction A winding roll discharge device for a web winding device.

[0008]

In the present invention, in the winding space constituted by the first winding roll, the second winding roll and the diameter control roll,
Since the winding roll is supported at three points, the winding posture is stable, and wrinkles do not occur on the winding roll even when the winding roll vibrates. Also, if the winding roll is supported at three points, it is impossible to discharge it originally,
In the present invention, discharge is possible as follows.
That is, the log brake sinks from the surface of the second take-up roll during winding, but when the take-up roll is discharged, the log brake rises before the take-up roll separates from the first take-up roll. , Lifting the winding roll from the lower surface of the winding roll and raising the diameter control roll, and further adding the rotation of the first winding roll and the diameter control roll to the winding roll to move the winding roll from the winding space. Roll it out. For this reason, the discharge of winding up roll Ru done quickly. Volumes 1 and 2 with large diameter and large mass
The take-up roll rotates in a fixed position and has a small diameter and quality.
Since only the diameter control roll with a small quantity is controlled to rise,
Is it possible to quickly respond to the winding weight of the up roll and the discharge timing?
Can be accurate. Cam diameter control rolls and log brakes
The vertical movement is controlled by, and the timing is mechanically inconsistent
Since it never happens, the operation is stable. Winding roll
For discharging, rotate the winding roll in the discharging direction with the diameter control roll.
It is performed by rolling it, and the tip side of the log brake is
As it tilts so that the base end side goes down in the raised state,
The winding roll does not reverse to the winding space side and is smoothly discharged.
Let out. Moreover, it is not necessary to stop the
Since it is sufficient to continue rotation in the intake space, dynamic inertia
Change I can be substantially free, high-speed operation for this purpose of
It Therefore, the work efficiency becomes very high.

[0009]

Embodiments of the present invention will now be described with reference to the drawings. In the web take-up device shown in FIG. 1, the web 1 having passed between the perforation roll 2 and the anvil roll 3 is wound around the first take-up roll 10 via the guide roll 4 and passed through the first take-up roll 10. The leading end of the formed web 1 has a first winding roll 10 and a second winding roll 30.
The core 7 that has been sent into the winding space 6 after a lapse of time
Further, in the winding space 6 composed of the two winding rolls 10 and 30 and the diameter control roll 50, it is wound up to a log having a desired thickness. The perforation forming device including the perforation rolls 2 and the anvil rolls 3 arranged in front of the guide rolls 4 forms the perforations at equal intervals on the web 1 when the anvil rolls 3 are brought close to the illustrated working position. When the anvil roll 3 is separated from the perforation roll 2 to the inoperative position (not shown), the perforation is not formed on the web 1. Then, when the log is wound for a predetermined length and rolled up to a desired thickness, the web 1 is first rolled.
The web separator 21 of the web separating roll 20 provided opposite to the winding roll 10 separates (cuts) the web.

As shown in FIG. 1, a groove 11 is formed on the surface of the first take-up roll 10 along the longitudinal direction of the first take-up roll 10, and the cut web 1 is provided inside the groove 11.
A hook 12 is formed to hold the tail edge of the hook on the surface of the first winding roll 10 (the groove 11 and the hook 12).
Is disclosed in Japanese Patent Application No. 3-305311). Note that the tail edge is held by a method of holding the tail edge of the web 1 cut by the suction holes formed on the surface of the first take-up roll 10 on the surface of the first take-up roll 10,
Any means can be adopted. Further, on the surface of the first take-up roll 10, in order to hold the front end portion of the cut web 1 on the surface of the first take-up roll 10 behind the groove 11 in the rotation direction of the first take-up roll 10. Suction hole 1
3 is formed, and the suction hole 13 communicates with the vacuum box 14.

As shown in FIG. 1, a web separator 21 having a rigid member 22 is attached to the surface of the web separating roll 20 along the normal direction of the web separating roll 20. Elastic bodies 23 are attached to both sides to prevent the web 1 from being displaced. Then, while the web separating roll 20 and the first winding roll 10 are rotating, the rigid member 22 attached to the web separating device 21.
When the stiff member 22 of the web separator 21 is pushed into the groove 11 at the time when is aligned with the groove 11, the web 1 is torn and the web 1 is separated into two. Web 1
As a means for separating the two into two, a cutter knife is formed on the web separator 21 and the anvil knife is formed on the side surface of the first winding roll 10 in the rotation direction in the groove 11 formed on the surface of the first winding roll 10. And the web separator 21 is the first
A method of shear-cutting the web 1 by bringing the cutter knife and the anvil knife into contact with each other when the web 1 is thrust into the groove 11 formed on the surface of the take-up roll 10 (Japanese Patent Application “Web Wrapping”, December 14, 1991). Any means such as a web cutting device in the take-up device ") can be adopted.

On the surface of the second winding roll 30, the winding core 7 to which the adhesive is attached in a ring shape is provided.
A plurality of annular grooves 31 corresponding to the intervals of the adhesives attached to the winding core 7 are formed so that the adhesives do not attach to the surface of the second take-up roll 30 when coming into contact with (see FIG. 2). . The annular groove 31 is a portion where a tip portion 61 of a rake-shaped log brake 60 described later is loosely fitted. The core 7
When the adhesive is not attached in a ring shape to the web, for example, a web winding device having an adhesive means for applying the adhesive to a running web in a direction perpendicular to the running direction of the web (Patent issued on Dec. 21, 1991). In the application “web winding device”) and the like, the interval between the annular grooves 31 of the second winding roll 30 is arbitrary.

The second take-up roll 30 rotates in synchronization with the first take-up roll 10, and the first take-up roll 1
It is a roll for winding the web 1 together with 0. The second take-up roll 30 advances the winding core 7 to which the tip of the web 1 is attached to the take-up space 6, so that the peripheral speed thereof is temporarily lower than that of the first take-up roll 10. Therefore, it is controlled by various mechanical or electrical means. And the first with a large diameter
The take-up roll 10 and the second take-up roll 30 rotate in a fixed position.
It is supposed to roll.

The core inserting device 40 is a device for inserting the core 7 between the first winding roll 10 and the second winding roll 30, and the core inserting mechanism 41 has an arm 4 and an arm 4.
2 is formed, and the insertion roller 43 is supported at the tip of the arm 42. And the first winding roll 1
The tip portion of the web 1 held on the surface of No. 0 has a portion in which the distance between the first winding roll 10 and the second winding roll 30 is the narrowest as the first winding roll 10 rotates (of the core 7). The core 7 having the ring-shaped adhesive applied thereto is located at a position substantially the same as the diameter).
Is pushed up by the insertion roller 43, and the tip of the web 1 is attached to the winding core 7 at the narrowest interval.

The diameter control roll 50 is the first winding roll.
10 and the diameter of the second winding roll 30 are smaller,
A side of the winding roll 10 and a second winding roll 3
Located above the 0, to form a winding space 6 together with the first take-up roll 10 and the second take-up roll 30
I have. Then, when the web 1 is wound around the winding core 7 in the winding space 6, the diameter of the web roll 5a (FIG. 1) is determined, and its rising position is adjusted so that the pressure on the web roll 5a becomes constant. It is a roll for controlling and holding the web roll 5a being wound up to a desired winding size. The operation of the diameter control roll 50 is performed, for example, by a servo motor (not shown) that rotates until the encoder signal indicating the actual rotation number matches the set winding length signal.
The servo-motor is controlled by a cam-type lifting control means or the like which is composed of a cam that is rotated once while winding one log. This diameter control roll 50
The rotation direction of the second winding roll 30 is the winding roll.
Is a direction of rotating the discharge direction.

The log brake 60, as shown in FIG.
Substrate 61 and a plurality of tongue-shaped tip portions 62 from the substrate 61
Is a rake-shaped member that extends in a rake shape so as to loosely fit into the plurality of annular grooves 31 formed on the surface of the second winding roll 30, and the second winding It is curved so as to follow the surface of the roll 30. The tip 62 is lower than the surface of the second take-up roll 30 and is attached so as not to contact the bottom of the annular groove 31 of the second take-up roll 30. Further, the leading edge of the tip portion 62 is located at the center of the lower surface of the winding roll 5c from the second winding roll 30.
It extends so as to be located on the rotation direction side of.

The base end portion of the log brake 60 is pivotally supported by bearings 66 and 67 fixed to the frames 71 and 72. Then, the cam this log brake 60 is composed of the first take-up roll 10 and the mechanical (or electrical) to interlock the driven shaft 66 (see FIG. 1) and the cam 65 fixed to the cam follower 64 and the arm 63 moved through the expression vertical movement control means, the distal end portion 62 of the log brake 60 is increased when the cam follower 64 comes to a site lower cam 65, group
The end is inclined so that it is lowered (see FIGS. 3 and 4). In the present embodiment, the shaft 66 is set to rotate once for every 10 rotations of the first winding roll 10, but this ratio can be set freely.

Next, a method of winding the log using the web winding device of this embodiment and discharging the winding roll 5c will be described with reference to FIGS. First, when the log is wound for a predetermined length and thickened to a desired thickness, as shown in FIG. 3, the web separating roll 20 is extruded toward the first winding roll 10 and attached to the web separating roll 20. When the rigid member 22 of the web separator 21 is pushed into the groove 11 formed on the surface of the first take-up roll 10, the web 1 is torn and separated into two parts. Then, the web tail edge 1a of the separated web 1 is held by the hook 12 formed inside the groove 11, and the web tip portion 1b is sucked by the suction hole 13 formed on the surface of the first winding roll 10. As a result, the first winding roll 10 is held on the surface of the first winding roll 10.

Then, the web leading end portion 1b held on the surface of the first take-up roll 10 rotates with the rotation of the first take-up roll 10 and the first take-up roll 10 and the second take-up roll 30.
The narrowest part of the space between (the same size as the diameter of the winding core 7)
At this time, the winding core 7 to which the adhesive is attached in a ring shape is pushed up by the insertion roller 43 of the winding core insertion device 40, and the web is wound on the winding core 7 at the narrowest space between the rolls 10 and 30. The tip portion 1b is adhered and wound.
At this time, if the peripheral speed of the second take-up roll 30 is controlled to be temporarily slower than the peripheral speed of the first take-up roll 10, the new core 7 around which the web 1 is wound advances and winds. Move to the taking space 6. When the winding core 7 moves to the winding space 6, the peripheral speed of the second winding roll 30 is restored to the normal peripheral speed. Then, the web 1 is wound around the winding core 7 in the winding space 6 formed by the first winding roll 10, the second winding roll 30, and the diameter control roll 50. At this time, the diameter of the web roll 5b is determined by the diameter control roll 50. When the web roll 5b is wound up to a predetermined length, the web 1 is cut into two as described above,
When the web tail edge 1a is wound up to form a winding roll, a new winding core 7 is supplied between the first winding roll 10 and the second winding roll 30, and the web leading end 1b is wound on the winding core 7.
It is wrapped around and becomes the above-mentioned state. Until the above state is reached, as shown in FIG. 3, the cam follower 64 does not come to the lower portion of the cam 65, so the log brake 60
The leading end portion 62 of the second winding roll 30 remains loosely fitted in the annular groove 31 of the second winding roll 30, and is held at a position lower than the surface of the second winding roll 30.

On the other hand, as shown in FIG. 4, when the winding of the web 1 is completed and the winding roll 5c is formed, the cam follower 64 comes to the lower portion of the cam 65, so that the second winding roll 30 is formed. The tip portion 62 of the log brake 60 loosely fitted in the annular groove 31 of the above goes out above the surface of the second winding roll 30 and lifts the winding roll 5c. As a result, the contact between the winding roll 5c and the second winding roll 30 is eliminated, and the winding roll 5c becomes the first winding roll 10c.
Is driven by the diameter control roll 50, rolls on the log brake 60, and is discharged to the discharge side of the winding roll 5c. Even if the log brake 60 is horizontal, the winding roll 5c can be discharged to the discharge side of the winding roll 5c by the rotational force of the first winding roll 10 and the diameter control roll 50. It is preferable to form a descending inclined surface from the front end to the end. In that case, the winding roll 5c can be easily discharged to the discharge side in combination with the rotational force of the first winding roll 10 and the diameter control roll 50.

Further, the diameter control roll 50 is controlled so that when the winding roll 5c is discharged from the winding space 6, it does not interfere with the discharge of the winding roll 5c and that the winding roll 5c is discharged earlier. Has been done. That is, specifically, the log brake 60 rises and the winding roll 5c
Is separated from the surface of the second take-up roll 30 and the contact between the take-up roll 5c and the second take-up roll 30 is lost, but the take-up roll 5c contacts the first take-up roll 10 and the diameter control roll 50. Therefore, the first winding roll 10 and the diameter control roll 50 are rotated by the rotational force, and the lower surface of the winding roll 5c is in contact with the upper surface of the log brake 60. And is discharged to the discharge side of the winding roll 5c. At this time, if the distance between the diameter control roll 50 and the log brake 60 is smaller than the diameter of the winding roll 5c, the winding roll 5c
Can not get out of the winding space 6, so
The diameter control roll 50 is raised in anticipation of the winding thickness of the winding roll 5c and movement in the discharge direction.

As described above, in the web winding device of this embodiment, the winding roll 5c can be supported at three points by the first winding roll 10, the second winding roll 30 and the diameter control roll 50. Therefore, even if the winding roll 5c vibrates, the winding roll 5c does not have wrinkles,
In addition, the vibration does not increase and the winding roll 5c does not jump out to the discharge side. Further, the winding roll 5c is discharged by utilizing the rotational force of the first winding roll 10 and the diameter control roll 50 due to the rise of the log brake 60, and
Since the winding roll 5c can be rapidly discharged by the control of the diameter control roll 50 regardless of the diameter of the winding log, it is not necessary to change the arrangement of the diameter control roll 50 according to the size of the winding roll 5c. Therefore, the work efficiency can be improved. First of large diameter and large mass,
The second take-up roll rotates in a fixed position and has a small diameter.
Only the diameter control roll with a small drilling mass is controlled to rise
To respond to the winding weight of the winding roll and the discharge timing.
Can be quick and accurate. Diameter control roll also log brake
The cam also controls the lifting and lowering, and the timing agrees with you.
Since it does not go crazy, the operation is stable. Winding up
For the roll discharge, use the diameter control roll to discharge the winding roll.
Rotation, and log brake first.
Inclining so that the base side is lowered with the end side raised
Therefore, the winding roll does not reverse to the winding space
Discharge smoothly. Moreover, it is necessary to stop it
Since it is sufficient to continue the rotation in the winding space,
Substantially no change in dynamic inertia, which enables high-speed operation
Becomes Therefore, the work efficiency becomes very high.

[0023]

According to the present invention, since the winding roll can be stably supported at three points by the first winding roll, the second winding roll and the diameter control roll, even if the winding roll vibrates. The winding roll does not wrinkle,
Also, the vibration does not increase and the winding roll does not jump out to the discharge side. In addition, the winding roll is discharged by utilizing the rotational force of the first winding roll and the diameter control roll due to the rise of the log brake, and regardless of the size of the diameter of the log wound by the control of the diameter control roll. Since the winding roll can be quickly discharged, it is not necessary to change the arrangement of the diameter control roll according to the size of the winding roll.
It is possible to improve work efficiency.

[Brief description of drawings]

FIG. 1 is a side view schematically showing a web winding device equipped with a winding roll discharging device according to an embodiment of the present invention.

FIG. 2 is a partial cross-sectional plan view showing a log brake and a second winding roll.

FIG. 3 is an explanatory view of a web winding state by the web winding device shown in FIG.

FIG. 4 is an explanatory diagram of a winding roll discharge state by the winding roll discharge device of FIG. 1;

FIG. 5 is an explanatory view of a state in which a web is wound by a conventional web winding device.

FIG. 6 is an explanatory diagram of a winding roll discharge state by a conventional winding roll discharge device.

[Explanation of symbols]

1 web 5c winding roll 7 core 10 first winding roll 20 web separating roll 30 second winding roll 31 annular groove 40 core inserting device 50 diameter control roll 60 log brake 61 substrate 62 tip part

Claims (1)

(57) [Claims] 1. A core for inserting the core between the second take-up roll and our first take-up roll rotating at a fixed position, and the first take-up roll and the second take-up roll An insertion device and a side of the first take-up roll , above the second take-up roll , capable of moving up and down, and having a diameter of
Of a small diameter control roll , a first winding roll, a second winding roll and a diameter control roll.
Consists of a winding up roll discharge device for discharging from between the diameter control roll, rotated by the second take-up roll and the diameter control roll
The direction of rotation of the winding roll is
And the diameter control roll, the roll ejector controls the lifting and lowering of the diameter control roll.
Cam type lifting control means and a rake-shaped log brake having a plurality of tongue-shaped tip portions extending from the substrate , and the log brake
And a cam type vertical movement control means for controlling vertical movement , wherein the log brake has a plurality of annular grooves formed on the surface of the second winding roll on the upper surface side of the second winding roll. It is arranged so that it is loosely fitted to the winding roll and located in the discharge direction from the center of the lower surface of the winding roll.
In addition, the base end is swingably supported,
The downward movement control means controls the log when the winding of the winding roll is completed.
The brake is swung, the distal portion being adapted to rise above the surface of the second take-up roll, cam-type elevation control means of said diameter control roll, wound diameter control roll of the winding up roll with increasing according thickening, contacts the outer circumference of the winding up roll when discharged, and the take-up roll discharge device for the web winding apparatus characterized in that to increase to a position that allows movement in the discharge direction.