JP2000264511A - Web winding device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a web winding device without risk that air intrudes into a web roll or that the web is cut to cause to scatter them around. SOLUTION: This web winding device is configured so that the outer surface of a web W wound on a reel spool 1 is brought into contact with a reel drum 2 rotating so that a web roll R is taken up, wherein the arrangement includes a press roll 3 contacting with the outside surface of the web roll R during its rotation and pressing it inward in the radial direction, a brush 4 contacting with the outside surface of the web roll R upstream of the web running direction from the press roll 3, and a position changing means 10 to change the positions of the press roll 3 and brush 4 between the working position contacting with the outside surface of the web roll R and the non-working position.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a web winding device. More specifically, the present invention relates to a web winding device for winding a web such as paper into a roll shape on the output side of a paper machine, and rewinding the wound web roll to an arbitrary diameter and width.

[0002]

2. Description of the Related Art A conventional web take-up device is disclosed in
JP-A-213499 (conventional example I). In this conventional example I, as shown in FIG.
1, reel spool 122, primary arm 123,
Guide roll 124, cutting device 125, cutter 12
6, glue spraying device 127, air nozzle (gooseneck) 128
It is composed of

In this conventional example I, just before the web roll 129 is wound on the reel spool 122 'by a predetermined amount, the empty reel spool 122 starts and accelerates at the standby position, and when the speed becomes the same as the web, The arm is moved by the arm 123 so as to contact and synchronize with the reel drum 121, and is arranged at a predetermined position to prepare for start of winding. Next, when the web is wound up by a predetermined amount, the air nozzle 128 is blown at the illustrated position, and at the same time, the cutter 126 of the cutting device 125 is operated, and the paper width is cross-cut by the cutter 126.
As shown in FIG. 7B, the cutter 126 starts,
As soon as the web is cross cut, the glue spraying device 129
Glue is sprayed on the triangular portion of the cross cut, and when this portion passes through the nip portion where the empty reel spool 122 and the reel drum 121 are in contact, the glue adheres to the empty reel spool 122 due to the adhesive force of the glue. , The web starts to be wound on the reel spool 122. And cutting equipment
The web cut in an umbrella shape by 125 is continuously wound on a reel spool 122, and the winding is completed to form a web roll 129. Thereafter, the web roll 129 is moved to the rail end and paid out. By the way, the conventional example I
Then, during winding, the reel drum 121
Air is entrained from the nip portion that is in contact with the surface of No. 9 and enters the web layer between web rolls, and this air causes the roll shape of the web roll to deteriorate, or air expands in the layer and the web bursts. Problems occur.

In view of this, a winding device (conventional example II) disclosed in Japanese Patent No. 2804858 has been proposed. This Conventional Example II is
As shown in FIG. 3, the web W is supplied onto the reel drum 215, and is wound up as a web roll 220 while rotating in contact with the reel drum 215. This basic configuration is the same as that of the conventional example I.
There is provided a press roll 235 which rotates in contact with the web roll 220 and discharges air in the layer of the web roll 220. The frame changing operation of the web take-up device is performed as follows.

In FIG. 3A, a web roll 220 formed on a rail 210 is almost wound up. When the web roll 220 is wound, the new reel spool 222 is transported to the standby position by the transport member 232, and the new reel spool 220 is accelerated to web speed. The press roll 235 has already been accelerated by the motor and moves along the rail to contact the web roll 220. Then, in order to prevent air from entering the web roll 220, the web roll 220 is rotated while being in contact with the web roll 220 so as to be pressed radially inward. The press roll 235 is contacted before the web roll 220 leaves the winding cylinder 215. When the web roll 220 is wound up,
As shown in FIG. 3B, the transport device 245 of the web roll 220 transports the rolled web roll connected to the center drive to the exchange position.

[0006] Then, as shown in FIG.
The new pre-accelerated reel spool 222
It has been lowered onto 210, is in contact with the reel drum 215, and rotates in the direction indicated by arrow S3. Almost simultaneously, the web W is cut, and the tip end side of the cut web is wound. The rolled-up web roll continues to rotate at the exchange position in the direction shown by the arrow S2, but is decelerated by the center drive 244 and finally stopped and paid out.

In the prior art II, when the winding is completed and the next web roll is started to be wound, the web is cut.
As it passes through 5, it hits the press roll 235, breaks into small pieces and is scattered around. Also, some of them enter the nip portion of the web roll 220.

[0008]

SUMMARY OF THE INVENTION In view of the foregoing, the present invention provides a web take-up device in which air does not enter a web roll and a web cutting terminal is not torn off and scattered around. The purpose is to do.

[0009]

According to a first aspect of the present invention, there is provided a web take-up device in which a rotating reel drum is brought into contact with an outer surface of a web wound on a reel spool to rotate the reel spool, and travels via the reel drum. Web winding device that winds the web to be rolled as a web roll,
During rotation of the web roll, a press roll that contacts the outer surface of the web roll and presses inward in the radial direction, and a brush that contacts the outer surface of the web roll on the upstream side in the running direction of the web from the press roll. And a position changing means for changing the position of the press roll and the brush between a working position in contact with the outer surface of the web roll and a non-working position distant from the working position.

According to the first aspect of the present invention, the end of the cut web passes through the brush before passing through the press roll, and at this time, it is along the outer surface of the web roll. Therefore, when passing through the press roll, it does not hit the press roll, so that it is not broken into small pieces and scattered around. In addition, air can be prevented from entering between web layers of the web roll by the press roll. In particular, the removal of air can be effectively performed even on paper such as coated paper into which air is easily introduced and is hard to be removed. Therefore, the number of waste sheets is reduced, and the productivity is improved.

[0011]

Next, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a schematic side view of the web winding device of the present embodiment. FIG. 2 is an explanatory view of the operation of the web winding device of the present embodiment, and the process proceeds in the order of (A) → (B) → (C). 1 and 2, reference numeral 1 denotes a web W
Is shown on the reel spool around which is wound. When the reel drum 2 rotating the reel spool 1 is brought into contact with the reel spool 1, the reel spool 1 rotates and the web W between the reel spool 2 and the reel drum 2 travels on the reel spool 1 via the reel drum 2 while running. Wound as R.

Now, a scattering prevention mechanism which is an important mechanism in the web winding device of the present embodiment will be described. As shown in FIG. 1, the scattering prevention mechanism includes a press roll 3, a brush 4
And a position changing means 10. The position changing means 10 includes a mounting plate 11, a cylinder 12, and a fulcrum pin 1.
3 is comprised. Press roll 3 and brush 4
Is mounted on the mounting plate 11. One end of the mounting plate 11 is pivotally attached to a fulcrum pin 13, and the mounting plate 11 is mounted to be vertically swingable. The other end of the mounting plate 11 is pivotally connected to the tip of a rod of a cylinder 12. For this reason, the mounting plate 11 can be swung up and down about the fulcrum pin 13 by the expansion and contraction of the cylinder 12. In other words, the position changing means 10 causes the press roll 3 and the brush 4 to move between the working position (shown in the drawing) in contact with the outer surface of the web roll R and a non-working position (not shown) remote from the working position. The position can be changed with. The position changing means 10 has a function of changing the positions of the press roll 3 and the brush 4 between a work position in contact with the outer surface of the web roll R and a non-work position away from the work position. If so, the configuration is not particularly limited.

When the press roll 3 is brought into contact with the outer surface of the web roll R by the position changing means 10 during rotation of the web roll R, the web roll R can be pressed radially inward. At the same time, the brush 4 can be brought into contact with the outer surface of the web roll R upstream of the press roll 3 in the running direction of the web W.

Next, the operation and effect of the web winding device of the present embodiment will be described. FIG. 2 is an explanatory view of the operation of the web winding device of the present embodiment, and the process proceeds in the order of (A) → (B) → (C). As shown in FIG. 2A, the web W is wound on a reel spool 1 as a web roll R, and the web roll R is almost wound up.

Next, as shown in FIG. 2 (B), the rolled-up web roll R is separated from the reel drum 2 with which it is in contact, and at this time, the web W is cut by a cutter (not shown) in front of the reel drum 2. Is done.

After the end of the cut web W has passed over the reel drum 2, the web W is pressed by a press roll 3 as shown in FIG.
Passes through the brush 4 before passing through. At this time, the end of the web W is along the outer surface of the web roll R by the brush 4, so that the end of the web W can be prevented from fluttering. Therefore, when the end of the web W passes through the brush 4, the end of the web W does not hit the press roll 3, so that there is an effect that it is not broken into small pieces and scattered around.

Further, the press roll 3 has the effect of preventing air from entering between the web layers of the web roll R. In particular, it is possible to effectively remove air even from paper having a property that air is easily entangled and hardly comes off, such as a coated paper. As a result, there is an effect that the number of waste sheets is reduced and the productivity is improved.

[0018]

According to the first aspect of the present invention, it is possible to prevent air from entering the web roll and prevent the web from being torn off and scattered around.

[Brief description of the drawings]

FIG. 1 is a schematic side view of a web winding device according to an embodiment of the present invention.

FIG. 2 is an explanatory diagram of an operation of the web winding device of the embodiment.

FIG. 3 is an explanatory diagram of an operation of a conventional web winding device (conventional example II).

4A and 4B show a conventional web winding device (conventional example 1), wherein FIG. 4A is a side view and FIG. 4B is a plan view of a web W.

[Description of Signs] 1 reel spool 2 reel drum 3 press roll 4 brush 10 position changing means R web roll W web

Claims (1)

[Claims] 1. A web take-up device for rotating a reel spool by bringing a rotating reel drum into contact with an outer surface of a web wound on a reel spool, and winding a web running through the reel drum as a web roll. During the rotation of the web roll, a press roll that contacts the outer surface of the web roll and presses inward in the radial direction, and on the upstream side in the running direction of the web from the press roll,
A brush for contacting the outer surface of the web roll, and changing the position of the press roll and the brush between a working position in contact with the outer surface of the web roll and a non-working position away from the working position; A web take-up device provided with a means.