JPH0520340B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a web winding device for a paper making machine having at least one winding station on each side of a single winding drum.

[Conventional technology]

A conventional web winding device of this type will be explained with reference to FIGS. 7 to 9. In the figure, the sheet f is cut into a predetermined length in the width direction by slitters g and g', and is sent by the winding drum a in the direction of the arrow A in the figure. It is wound up by a large number of winding stations e installed at. When the take-up roll c that has been completely wound by the take-up drum a is discharged from the machine by the take-up roll unloading table lifter b, when the next winding is to be carried out, a predetermined amount is set according to the take-up roll width. Winding station e
However, it is difficult to mechanize because there are many different widths of the winding rolls and the table lifter b for unloading the winding rolls is located on the side of the winding station e. All of this work relies on humans.

[Problem that the invention seeks to solve]

In the past, as mentioned above, cores were supplied manually, which resulted in poor work efficiency.Recently, with the demand for improved production capacity of web winding devices, there is a need to shorten the time required to bring in the cores. However, I cannot fully deal with it. Additionally, if the width of the take-up roll exceeds 1500mm, paper cores cannot handle it.
Generally, an iron core or an aluminum core is used, which increases the weight of the core and makes the core supply operation labor intensive, further deteriorating work efficiency.

[Means for solving problems]

The present invention was proposed in view of the above-mentioned conventional problems, and includes a plurality of winding stations on the left and right sides of a single winding drum, each of which can adjust the winding width, and also takes out the winding roll after winding is completed. In a web winding device having a discharge mechanism, a core guide for placing a core disposed over the entire width of the winding drum along the axial direction of the winding drum above the winding station; A beam extends along its entire width in the axial direction and is attached to the frame so that it can move up and down, and a number of beams are attached to the bottom of the beam in the longitudinal direction, each of which can selectively apply suction force. A means for solving the problem is to provide a guide for guiding the suction pad and the beam between the upper part of the core guide and the core mounting position of the winding station.

[Effect]

During winding, cores of a predetermined length are set above each winding station on the core guide in the required number and at the required position, and after the winding roll is unloaded, the cores are set on the beam. Each core is held by suction with a large number of suction pads. After completion of suction and holding, lower the core supply beam. At this time, each core is sucked by a suction pad and descends with the beam.
The core is fed to the core device location of the winding station by means of a guide.

After the core is gripped at the winding station, the core supply beam is raised and winding is started again.

〔Example〕

The present invention will be explained below with reference to illustrated embodiments shown in FIGS. 1 to 6. In the figure, 1 is a sheet,
2, 2' are slivers, 3, 3' are guide rolls, 4
5 is a winding drum, 5 is a frame, 6 is a winding station, and 7 is a lifter for unloading the winding roll. The sheet 1 cut to a predetermined length in the width direction by the slitter 2, 2' is sent by a guide roll 3' and a winding drum 4, and is sent to a number of winding stations 6 installed on the left and right sides of the winding drum 4.
It is wound up by. The winding roll that has been completely wound is taken out from the winding station 6 by the unloading lifter 7 as in the conventional case.

9 is a core supply beam, 10 is a chain block,
11 is a chain. The core supply beam 9 is attached to a chain block 10 attached to the frame 5 via a chain 11 so as to be vertically movable. 12 is a movable core guide, 13 is a bracket,
14 is a fixed core guide. Movable core guide 1
2 is rotatably supported by a bracket 13 attached to the frame 5, and the fixed core guide 14 is fixed to the frame 5 on the same line as the movable core guide 12. 15 is a suction pad,
16 is a switching valve, 17 is a vacuum box, 18 is a vacuum generator, and 19 is piping. A large number of suction pads 15 and switching valves 16 are installed at equal intervals under the core supply beam 9, and a vacuum generator 18 installed on the frame 5 generates a vacuum through a pipe 19 and a vacuum box 17 to the tip of the suction pad 15. It is designed to generate vacuum force.

Figure 3 shows the state in which the core is being sucked, and Figure 4 shows the state in which the core is released from suction.
is the core. 18, the vacuum generator passes through the piping 19, the vacuum box 17, and the switching valve 16, and then the distal end 15- of the suction pad 15.
a becomes a vacuum state, and the core 20 is sucked by the suction pad 15. By moving the spool 16-a of the switching valve 16 to the position shown in FIG. 4, the vacuum force is released and the core 20 is separated from the suction pad 15. FIG. 5 shows the attached state of the movable core guide 12 when the core 20 is supplied, where 21 is a pinion, 22 is a rack, 23 is a guide, 24 is an air cylinder for operating the movable core guide, and 25 is a connecting pin. . A pinion 21 is attached to the movable core guide 24, and the pinion 23 meshes with the pinion 21.
is guided by a guide 23 fixed to the frame 5 and supported so as to be movable up and down, and further connected by a pin 25 to an air cylinder 24 fixed to the frame 5 for operating the movable core guide.

FIG. 6 shows the state in which the core supply beam 9 moves up and down, where 26 is a guide and 27 is a bearing. The bearing 27 is fixed to the core supply beam 9, and is fitted into a groove of a guide 26 attached to the frame 5 so as to be rotatable.

The core supply operation according to this embodiment will be explained below.The core supply beam 9 is in the position shown in FIG. 1 during winding. As shown in FIG. 2, the core 20 is placed on the fixed core guide 14 from the side of the frame manually or by another machine, and then the movable core guide 1
Push it towards 2. At this time, as shown in FIG. 5, a low friction liner 28 is provided on the upper surface of the core guide so that the core 20 can be easily moved. As shown in Figure 2, each core of a predetermined length is pushed in one after another,
Each waits at a predetermined position. Winding is completed,
After unloading of the winding roll is completed, the vacuum generator 18 is activated to cause each core to be sucked by its respective suction pad 15. At this time, for the suction pads 15 that do not adsorb cores, by setting the spools 16-a of each switching valve 16 to the position shown in FIG. 4, suction is performed only where necessary, that is, where the cores are located. It will be done. After that, as shown in FIG. 5, the air cylinder 2 for operating the movable core guide
4 and pulls up the rack 25 in the direction of the arrow A in the figure, the movable core guide 12 is rotated in the direction of the arrow C in the figure via the pinion 21.
At this time, the core is attracted to the suction pad and held in its position. Thereafter, as shown in FIG. 6, the chain block 10 is operated to move the core supply beam 9 downward. At this time, the core supply beam 9 is moved along the guide 26 by a bearing 27 fixed to it, and at a predetermined position, the stopper portion 2 of the guide 26 is moved.
6-a to stop. The core is then fed to the winding station. After the core is gripped by the winding station 6, the vacuum generator is stopped and the vacuum generator is placed on standby at the position shown in FIG.

〔Effect of the invention〕

As explained above, according to the present invention, a core guide for preparing the next core during the winding operation is provided, a beam having a large number of suction pads for sucking and holding the cores is provided, and a large number of cores of different lengths are wound. After completing the
Since it is possible to supply cores to a predetermined position on the winding station all at once, conventional manual labor is no longer required, and since a large number of cores can be supplied mechanically at the same time, the time required for supplying cores is also greatly shortened. . Therefore, the production capacity of the web winding device can be improved.

[Brief explanation of the drawing]

1 to 6 show an embodiment of the present invention, in which FIG. 1 is a side view, FIG. 2 is a front view, FIGS. 3 and 4 are sectional views showing the core supply beam, and FIG. 5 is a cross-sectional view showing the core supply beam. is a side view showing the movable core guide, FIG. 6 is a side view showing the guide section, FIGS. 7 to 9 show a conventional web winding device, FIG. 7 is a side view, and FIG. 8 is a core supply. A side view showing the work, and FIG. 9 is a plan view. 4... Winding drum, 6... Winding station, 7... Lifter, 5... Frame, 9...
...beam, 12...movable core guide, 14...fixed core guide, 15...suction pad, 20...core, 26...guide.

Claims (1)

[Claims] 1. In a web winding device having a plurality of winding stations on the left and right sides of a single winding drum whose winding width can be adjusted, and a discharge mechanism for taking out the winding roll after winding is completed, a core guide for placing a core disposed upwardly along the entire width of the winding drum along the axial direction; A beam attached to the frame so that it can move up and down,
A plurality of suction pads are attached to the lower part of the beam in the longitudinal direction, each of which can selectively apply a suction force, and a guide is provided for guiding the beam between the upper part of the core guide and the core mounting position of the winding station. A web winding device characterized by: