JP2544464B2 - Web winding device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a web winding device generally used in a paper mill, in which the winding rolls are arranged on the left and right of the winding drum and the plane shapes are arranged in a staggered manner. About Duplex Winder.

[Conventional technology]

Among the web winding devices conventionally used in paper mills, the take-up rolls are arranged in a zigzag plane on the left and right of the take-up drum, and while supporting some percentage of its weight with the take-up drum, The outline of the duplex winder to be formed will be described with reference to FIG. , 64, and the adjacent webs on the take-up drum 01 are distributed to the left and right, and are wound around the core 17 to form a take-up roll.
Form 23.

The winding roll 23, which has been wound up, is unloaded from the winding position 65 on the roll unloading surface 09 such as the floor surface, as shown by the alternate long and short dash line in FIG. At this time, it is necessary to cut the web connected from the take-up roll 23 onto the take-up drum 01 by an arbitrary method, and when the take-up roll 23 is unloaded, it remains after cutting a new core. Apply to the web and be prepared to start the next winding. The above work is usually called wholesale change in a winder, and preparing the core at a position where it can be wound next time is called bringing in the core. The take-up roll 23 unloaded by the above-described method is generally carried out by the conveyor 53 on the carry-out surface 09.

[Problems to be Solved by the Invention]

The conventional web winding device has the following problems to be solved. That is, the winder of recent years is usually required to be wound at a considerably high speed, and therefore, there is a high possibility that the paper will meander after being cut by the slitter. As shown in the figure, the distance between the slitters 63 and 64 and the take-up drum 01 must be made as short as possible, but to achieve this and realize a duplex winder that can support the take-up roll weight with the take-up drum. Then, as shown in FIG. 4, it is settled into a type in which the take-up rolls 23 are arranged in a zigzag shape in plan view on one take-up drum 01. However, in this type, since the devices necessary for establishing this winder are densely packed in the vicinity of the take-up roll 23, the positional relationship between the devices is limited due to the restrictions on the size of the usable space. Adjustment became difficult, and a lot of time had to be spent for retracting the winding rolls and retracting and withdrawing each device when bringing in the core. On the other hand, since the winder work is a batch work, it is necessary to shorten the work time as much as possible, and for this purpose, it has been desired to shorten the time required for the above-mentioned wholesale replacement.

The present invention aims to solve the above problems.

[Means for solving the problem]

As a means for solving the above problems, the present invention provides a winding drum for a web, a winding roll arranged to face each other when viewed in the axial direction of the winding drum, and a winding drum above the winding drum. An arm provided so as to be swingable by a fulcrum that is parallel to the axis, and the winding core of the winding roll provided on the arm is approximately parallel to the axis of the winding drum and maintains a predetermined contact pressure. A core holding means for winding the web while pressing it against the winding drum, and a parallel link whose rising position is near the lower end of the winding roll that has finished winding the web and whose descending position is the take-out height of the winding roll. Between the take-up roll and the take-up drum before the take-up roll placed on the take-up stand is lowered to the carry-out height. Web cutting means for cutting the web connected to the It is intended to provide a web winding apparatus according to claim.

[Action]

Since the present invention is configured as described above, it has the following effects. That is, since the web (paper) is wound by pressing the winding core (core) above the winding drum by the swinging arm, it does not hinder other devices and workers near the floor surface. Also, since the take-up roll is unloaded by a parallel link operation unloading platform that moves up and down within a preset height range, the unloading roll is always kept in a fixed posture during unloading, and only in a fixed space. Since it is descending, the installation of other devices etc. is extremely systematic and orderly, and the evacuation of other devices accompanying unloading,
The time and labor required for withdrawals can be saved. The unloading table can be stored at the same height as the floor surface when not in use, for example, by parallel links, so that it does not interfere with other devices and workers during the web winding operation.

As described above, the time required for unloading is significantly shortened and the efficiency is improved.

〔Example〕

First Embodiment of Web Winding Apparatus According to One Embodiment of the Present Invention
It will be described with reference to the drawings. The main constituent members in the figure are as follows. Winding drum 01, a beam parallel to the winding drum 01 and having a length equal to or longer than that of the winding drum 01
02, an arm 05 that can be swung by a cylinder 04 around a fulcrum 03, and a core support portion 06 on the arm 05, after starting winding,
The rider roll 07 and the rider roll that optimize the contact between the winding roll 23 and the winding drum 01 in the initial stage
Parallel link from arm 08 that supports 07 and floor surface (export surface) 09
An unloading base 13 of the take-up roll 23, which is supported by 10, 11 and the cylinder 12, a stopper 14 on the unloading base 13, a paper cutting device 15, and a core receiver 16 for bringing in a core. .

Next, the operation of the above-mentioned constituent members and the apparatus of the embodiment comprising them will be described with reference to FIG. The figure shows from the start of winding to the end of winding. The core 17 that serves as the winding core of the winding roll 23 has a core supporting position 06 of the arm 05 by a method described later.
It is attached to the take-up drum 01 around the fulcrum 03 by the cylinder 04 and the fulcrum 18
It is pressed by two rider rolls 07 which receive a force from the cylinder 19 via the arm 08 around the center as shown by the solid line in the figure. In this state, move the take-up drum 01 to the arrow 20
By rotating in the direction of, the web 45 fed by the rotation of the winding drum 01 winds around the core 17 to form the winding roll 23. At this time, the core support position 06 moves on the arc 21 with the swing of the arm 05, while the center position of the two rider rolls 07 is the arm 08.
It moves on the circular arc 22 with the swing of. At this time, the contact pressure of the take-up roll 23 against the take-up drum 01 and the pressing pressure of the rider roll 07 against the take-up roll 23 are the cylinders 04, 1 respectively.
It can be controlled by 9. The function of the rider roll 07 is
As described above, the contact state of the take-up roll 23 with the take-up drum 01 is to be appropriate, the diameter of the take-up roll 23 is increased to some extent, and the rigidity of the take-up roll 23 itself is sufficiently increased. However, the rider roll 07, which is also at the position of the chain double-dashed line 25 in the figure, is no longer necessary, for example, by swinging the arm 27 around the fulcrum 26 at this point. The rider roll 07 is moved to a position that does not interfere with the unloading of the winding roll 23, which will be described later, for example, to an arm position indicated by a chain line 28 in the drawing. After that, the winding is further continued, and the required winding diameter,
For example, when the winding roll 23 reaches the position of the alternate long and short dash line 29 in the figure, the rotation of the winding drum 01 is stopped and the winding is completed. It should be noted that the width of the take-up roll 23 must be selectable depending on the cutting width by the slitters 63 and 64 as shown in FIG.
The position of the rider roll 07 in the width direction is determined by the brackets 30 and 31 on which the respective arms are mounted and the guides 32 and 33 for the linear motion type anti-friction mounted on the brackets 30 and 31 and this guide 32. Rails 34 and 35 attached to beam 02 that support
By this, it is possible to set arbitrarily. Next, referring to FIG. 3, a description will be given from the end of winding to the start of next winding, that is, so-called wholesale replacement.
Is inserted in advance on the core receiver 16. Next, during the winding operation, in the drawing, the winding roll unloading stand 13 located at the position of the alternate long and short dash line 36 is raised by the cylinder 12 and the parallel links 10 and 11, and is placed on the lower end 37 of the winding roll 23 after winding. Or the lower surface is the unloading surface 38 of the take-up roll unloading stand 13.
The winding roll 23 is stopped at a position including the vertical line 39 passing through 37 and not being lifted up from the winding drum 01. At this time, the stopper 14 is swung about the fulcrum 40 so that it is projected onto the unloading surface 38 as shown. When the winding end support portion attached to the arm 05 is released from the core 17 of the winding roll 23 in this state, the winding roll 23 moves from the winding drum 01 onto the unloading surface 38, and the unloading surface 38 Winding drum 01
Since it is inclined so as to become lower in the direction away from (direction of arrow 41 in the figure), it rolls on the unloading surface 38 and stops when it comes into contact with the stopper 14. The position of the take-up roll 23 at this time is the position shown by the alternate long and short dash line 23 in the figure, and the web 45 connected to the rewind roll 23
Is located on the take-up drum 01 at a position as indicated by the alternate long and short dash line 43 in the figure. On the other hand, although the winding roll 23 located on the left side of the winding drum 01 toward the paper surface of FIG. 3 is not shown, the web 45 is attached to the winding roll 23 at a position indicated by a chain line 44 in the drawing. It is connected. The positions 43 and 44 of these webs 45 have a certain amount of tension unless the webs 45 connected from the unwinding roll (not shown) are loosened,
Therefore, use a thread-like object or a cutting tool such as a knife on the web.
Passing along 45 allows the web 45 to be cut across its entire width. This is achieved by the paper cutting device, and its operation will be described below. Arms 47 rotatably supported around the shaft center 46 of the take-up drum 01 are provided on both sides of the take-up drum 01. A tooth profile is cut in the arc-shaped portion 48 and meshes with the gear 49. The gears 49 are provided on both sides of the winding drum 01 in a state of being connected via an axis or the like over the axial direction of the winding drum 01 so as to synchronize the movements of the arms 47 on both sides of the winding drum 01.
As described above, when the winding roll 23 comes into contact with the stopper 14 and stops, the gear 49 is rotated in the direction of arrow 50 and the arm 47 is rotated in the direction of arrow 51. On the projecting portion 52 of the arm 47, a cutting tool (not shown) such as a filamentous object or a knife is attached between the arms 47 on both sides of the winding drum 01 so as to cover the entire width of the winding drum 01 in the axial direction. , This is the web
By passing across position 43 of 45 and even 44
The web 45 can be cut across its entire width.
After cutting, the arm 47 is returned to the position as shown by reversing the gear 49, while the cut web 45 is wound on the peripheral surface of the winding drum 01 by a known method of generating suction force by suction. It is held on the take-up drum 01. After the end of paper cutting, the cylinder 12 and the links 10 and 11 lower the take-up roll unloading base 13 to the position of the alternate long and short dash line 36,
At the same time, if the stopper 14 is swung so as not to project from the unloading surface 38, the take-up roll 23 rolls out from the position of the two-dot chain line 23 on the left side in FIG. As indicated by the chain double-dashed line 23 in FIG. Further, the core receiver 16 can be moved on the vertical line 39 by the linear motion type anti-friction guide 54 and the rail 56 attached to the stand 55, and the take-up roll unloading stand 13 starts to descend and the core receiver 16 is moved. The core receiver 16 in which the core 17 is previously inserted is raised where it does not interfere with the movement range of the core 17, and the position of the core 17 reaches the movement trajectory 57 of the core support where the core 05 swings. Stop at the position indicated by the alternate long and short dash line 58 in the figure. At this time, the arm 05 is at the position shown in the figure. Here, after the core 17 is received by the winding end support portion, the core receiver 16 is lowered to return to the position shown by the solid line in the figure, and the arm 05 is swung in the direction of arrow 59. Core 17
Is pressed onto the take-up drum 01. Since the cut web 45 is held on the winding drum 01, the next winding can be started as described above.

It should be noted that all the operations of the above-mentioned respective devices can be easily performed by a known motor, cylinder, switch, sensor, control device, etc., and therefore description thereof will be omitted.

〔The invention's effect〕

Since the present invention is configured as described above, it has the following effects. That is, since the winding core is pressed against the winding drum above the winding drum by the swinging arm to wind up the web, the work can be performed without hindering other devices and workers near the floor surface. . Also, since the take-up roll is unloaded by the parallel link operation take-up / down platform that moves up and down within the preset height range, the take-up roll is always held in a fixed posture during unloading. Since it descends, the installation of other devices and the like is extremely systematic and orderly, and the time and labor required for evacuation and withdrawal of other devices due to unloading are omitted.

Further, since the unloading table can be stored at the same height as the floor surface by a parallel link when not in use, it does not hinder the handling work of other devices during the web winding operation.

In short, according to the present invention, a highly efficient web winding device can be obtained despite a small space and a simple structure.
In addition, the accessibility to the device, the visibility and workability are improved, and the wholesale operation can be performed automatically.
It is possible to obtain a web winding device that is highly efficient, labor-saving, and highly safe.

[Brief description of drawings]

FIG. 1 is a side view of a web winding device according to an embodiment of the present invention, FIG. 2 is an explanatory view of the action centering on an arm in the above embodiment, and FIG. 3 is the above embodiment. Of these, an explanatory view of the action centering on the take-up stand of the winding roll, FIG. 4 is
FIG. 5 is an explanatory view of a duplex winder of a type in which a part of the weight of a conventional take-up roll is supported by a take-up drum,
It is a V arrow line view of FIG. 01 …… Winding drum, 05 …… Arm (for supporting core), 08 …… Arm (for pressing rider roll), 09 …… Floor surface (unloading surface), 10,11 …… Parallel link, 13 …… Unloading table (for winding roll), 15 …… paper cutting device, 16 …… core receiver, 17 …… core (core), 23 …… winding roll, 27 …… arm, 47 …… for paper cutting arm.

Claims (1)

(57) [Claims] 1. A take-up drum for a web, a take-up roll arranged to face each other in the left-right direction when viewed in the axial direction of the take-up drum, and above the take-up drum and parallel to the axial center of the take-up drum. The arm, which is swingable by a fulcrum, and the winding core of the winding roll, which is provided on the arm, are pressed against the winding drum substantially parallel to the axis of the winding drum and maintaining a predetermined contact pressure. While maintaining horizontal by the core holding means for winding the web and the parallel link whose rising position is near the lower end of the winding roll that has finished winding the web and whose descending position is the take-out height of the winding roll. Cut the web that connects between the take-up roll and the take-up roll placed on the take-up stand and the take-up roll and the take-up drum before the take-up roll is lowered to the carry-out height. And a web cutting means for cutting the web. Apparatus.