JPH0248360A - Unwinder device - Google Patents

Abstract

PURPOSE:To cut an old web automatically in a quick manner by adjusting a degree of tension in a web of an old rewinding roll with adjusting means without preventing any movement, and detecting adhesion between the old web and a new web through a tension variation. CONSTITUTION:An oil rewinding roll 02 is uplifted from a rewinding position 17 to 18 without cutting a web 05, and simultaneously, a tension roll is also shifted to a 10 position. Then, a new rewinding roll 01 fitted with an adhesive surface 14 is conveyed to the rewinding position 17, and then the web 05 of the old rewinding roll 07 is pressed on the roll 01 by a paper presser 22, while the tension roll 07 is turned round to a 11 position by a cylinder 23, whereby tension is added to the old web 5. In succession, the new roll 01 is rotated and the adhesive surface 14 is stuck to the old web 05. At this time, the tension roll 07 is somewhat shifted by a variation in the tension, and a contact 30 of an adjuster 30 is made in a circuit so that a cutter 06 is operated, thus the old web 05 is cut off. Therefore automation for cutting can be done in this way.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an unwinder device for feeding paper (web) to a web winding device, a supercar Vender, etc. commonly used in paper mills.

[Conventional technology]

FIG. 2 is a perspective view of a conventional unwinder, specifically a deaplex winder. In the figure, 1
6 is an unwinder stand)', 01 is a rewind roll for unwinding one sheet of paper after it is carried into the unwinder stand, 20 is a peno ξ roll that serves as a guide for feeding the paper, and 32 is a roll for holding the paper to the required width. Slitter for cutting, 33
9 is a ram for winding paper, and 34 is a wound paper roll (winding roll).

Referring to the figure, an example of paper splicing in an unwinding device will be explained. When a predetermined length of paper is unwound to one unwinding roll during winding work, there is a gap between the first winding roll and the unwinding roll 02. While leaving the paper 05 connected, move the first rewind roll 02 (hereinafter, this rewind roll will be referred to as the old rewind roll) to a distance ft18 away from the predetermined rewind roll position 17 during winder operation, New unwinder stand “1”
6, bring the rewind roll 01 (hereinafter, this rewind roll will be referred to as a new rewind roll), and remove the old rewind roll 020 paper 05 and the paper end 15 of the new rewind roll 01.

For example, by adhering to the paper on the new rewinding roll 01 (by adhering it to the paper 05 on the new rewinding roll 01), the new rewinding roll 0
1 to reach the winding drum 33.

Therefore, in order to accomplish this paper splicing work, at least the paper 05 of the old rewind roll 02 and the paper traces of a , 37), paper 05
, 35 (so that the paper does not remain in the shape of a so-called tail after gluing).

It is advisable to cut as close to the bonding point as possible.

Although these operations are carried out in various ways at each paper mill site, they are generally performed manually and are performed at a high level (several thousand operations per day). Therefore, automation of one task is desired.

Until now, as an example of automating paper splicing work,
No. 88756 has been proposed, and its contents include cutting the new unwinding roll appropriately near the end of the roll, forming an adhesive surface, and after the paper of the old unwinding roll and the new unwinding roll are attached,
The technique is limited to cutting the paper on the old rewind roll with a knife, and does not disclose any technique regarding the timing of protruding the knife. Therefore, the work that relies on manual labor, which occupies most of the current paper splicing work, remains unresolved.

[Problem to be solved by the invention]

The conventional unwinding device described above has the following problems to be solved. That is, unless one relies on manual work to join one sheet of paper, it is difficult to achieve uniform and clean adhesion in the width direction of one sheet (perpendicular to the longitudinal direction of the paper, ie, the direction in which the adhesive surfaces are continuous). Achieving good adhesion requires many years of skill on the part of the operator.

An essential condition that must be solved for mechanization is the fact that when cutting paper near the paper splicing point (adhesion part ■), the fact that the adhesion of two pieces of paper has been completed must be detected instantly. but.

Until now, there was no way to detect it other than visually.

[Means to solve the problem]

The present invention provides means for solving the above-mentioned problems and 1-, in an unwinder device that operates with a process of splicing the web from the old unwinding roll to the new unwinding roll when replacing the unwinding roll. A tension adjusting means adjusts the tension of the web at an appropriate position while it reaches the end of the web without interfering with its movement; An object of the present invention is to provide an unwinding device characterized in that it is equipped with adhesion detection means for detecting that the web of the roll is bonded to the web of the roll.

[For production]

Since the present invention is configured as described above, it has the following effects. In other words, by applying an appropriate nib tension to the old rewound roll web using the tension adjustment means during web splicing, the old rewound roll web can be prevented from hanging onto the adhesive surface of the new rewound roll at an inappropriate position. In addition to preventing adhesion, by applying appropriate tension to the web of the old rewind roll at the moment when the webs of both the old and new rewind rolls are glued together, wrinkles at the bonded area or the web and web are bonded together. Prevents things like being glued diagonally.

In addition, when splicing paper while rotating the new unwind roll,
By adhering the webs of both the old and new rewinding rolls, the web of the old rewinding roll is pulled in the direction of rotation of the new rewinding roll, and the web tension 7M of the old rewinding roll changes. This tension variation.

Alternatively, the fact that the webs have been bonded can be recognized by detecting the fluctuations that may occur due to the fluctuations in the tensile strength using the adhesion detection means. to stop. Alternatively, by giving a command to cut the web of the old ticket roll, the web splicing can be completed mechanically without leaving a long tail-like web at the adhesion position, and without any manual intervention.

〔Example〕

An embodiment of the present invention will be described with reference to FIG. Components similar to those in FIG. 2 of the conventional example are given the same reference numerals, and explanations are omitted unless particularly necessary.

In the figure, 01 is a new rewinding roll, 02 is an old rewinding roll, 03 is an end surface forming device that forms a paper edge with an adhesive surface 14 for paper splicing, which will be described later, on the new rewinding roll 01, and 04 is an adhesive Paper 05 of old rewind roll 02 with side 14
the old rewind roll 0 with the knife 06.
The cutting device that cuts the paper 05 of 2, 07 is the paper 05
This is a tensilon roll for properly adjusting the tensilon. Note that this tension roll 07 is used so as not to impede the advance of the paper sent out from the first rewind roll during winder operation. For example, when the winding diameter of the rewind roll becomes small, the tension roll 07 No-touch position 0
9 and moves to position 11 via position 10 to perform one sheet splicing. By moving in this way, the ten-day roll 07 is held by the paper 05 of the old rewind roll 02 as shown in the figure (the tensilon roll 07 comes into contact with the paper 05 [and is given tensilon]) Can be done. 12 is a tension adjustment device that detects the tension of the paper 05 and adjusts it to a desired tension. The tension adjustment device 12 is an air cylinder described later. swing arm b.

Actuation piece 29. It is composed of a limit switch I, etc., and constitutes a main part of this embodiment.

Below is Tenshi Sun! ! 1.1 The operation of this embodiment will be explained mainly with respect to the adjustment device 12. First, the new rewind 20-rule 01 is carried to position 13, where it is manually or
The end surface forming device 03 cuts the end of the roll in a straight line in the roll width direction, attaches an adhesive surface 14, and forms a paper width 15.

On the other hand, the old rewind [,
70-ru 02 ke 1 Paper 05 connected to the winding section
Unwinding L7 of the unwinder stand Tagami is lifted from position 17 to position 18 without cutting. At this time, by pressing the paper 05 with the presser foot 19 at the paper roll addition position where the first paper 05 passes during winder operation, the tension of the paper 05 from the k-parole addition to the winding section is determined as follows. It remains constant during the paper splicing operation.

Next, the above-mentioned new rewind roll 01 moves from position 13 to 1
Move to position 7 and start oral tradition in the direction of arrow 21.

At this time, the old rewind roll 020 paper 05 falls at position 18
is pressed with an appropriate force onto the new rewind roll 01 by a paper presser n, and
It is pressed diagonally upward from below and held in the shape shown in the figure.

Now move this tensilon roll 07 from position 10 to 11.
To swing to the position, the swing arm δ, which rotates around the fulcrum 24, is raised by the air cylinder B and rotated once. Note that the tensilon roll 07 is pivotally supported at the tip of the swing arm 5 as shown in the figure.

Therefore, the air pressure applied to air sill 2 causes paper 0
The tension applied to 5 can be adjusted.

In this way, by holding the paper 05 away from the circumferential surface of the new rewinding roll 01 and applying appropriate tension, the paper 05 becomes firm before the adhesive surface 14 reaches the position of the paper presser n. This can prevent it from falling down, landing on the adhesive surface 14, and causing damage. In addition, by adding a tensile strength like - to paper 1 05, uniformity in the width direction of paper 05 is maintained at the gap where the adhesive surface 14 touches paper 05 at position n of paper 1 presser, and the adhesive state is maintained. It is ideally straight and uniform in the width direction of the paper.

Next, the new rewind roll 01 continues to rotate in the direction of the arrow 21 even after the 0 paper 05 is glued to the paper presser n position rC and the adhesive surface 14rC, so that the W.1 paper 05 also faces the new rewind roll 01ge. The paper 05 moves in the direction of the arrow 26 in synchronization with the movement of the paper 05, and the paper 05 is pulled in both directions, so the tension of the paper 05 between the bail AC+- wheel 4 and the paper presser n increases. Due to this increase in tensile strength, the force that pulls the tensile roll 07 in the direction of the arrow n overcomes the force exerted by the air cylinder O in the four directions of the arrow.

The Tenshison roll 07 moves in the direction of the arrow 27, and accordingly, the swing arm 5 rotates around the fulcrum U.
As a result, the first actuating piece 4 presses the limit switch and activates it. When the limit switch is activated, the rotation of the new rewind roll 01 in the direction of the arrow 21 is stopped by a means not shown, and the paper cutting knife 06 installed near the paper presser O protrudes to unwind the old rewind roll. The paper 05 of the roll 02 is cut across the entire width. At this time, the paper cutting knife 06 should be installed near the paper presser n, and the rotation angle 31 of the swing arm 5 until the limit switch is activated.
Also, after the limit switch is activated, the knife 06
The delay time until it sticks out is new rewind roll 0
10 By appropriately setting the time until the rotation stops, etc., paper 05 of new rewind roll 01 and paper of old rewind roll 020 are completely adhered, and remain between the paper joints after cutting. Paper splicing can be performed so that the tail-shaped portion of the paper 05 of the old rewind roll 02 becomes shorter.

According to this embodiment, it is possible to mechanically and uniformly bond paper from the old unwinding port or roll of the unwinding device to the new unwinding roll without relying on human labor. , high product quality and work efficiency are achieved.

〔Effect of the invention〕

Since the present invention is configured as described above, it has the following effects.

(1) The tensicon adjustment device allows the web to be bonded uniformly and beautifully, eliminating the problems of conventional wrinkles and diagonal splicing.

(2) Since the adhesion detection means can mechanically and accurately determine the adhesion point (connection point) of the web and the completion of adhesion, it is possible to mechanize cutting of the HM (tail) of the adhesion section. In the end, full automation of Kuep splicing is achieved.

(3) Above +11, (21 improves the quality of the product,
Improving production efficiency 1 Improvements in the working conditions of workers, etc. cannot be achieved.

[Brief explanation of the drawing]

FIG. 1 shows an unwinder device according to an embodiment of the present invention.
111 and FIG. 2 are perspective views of the conventional example. Ol...New unwinding roll 03...End face formation'! A position 05...Paper (web) 07...Tennn roll 14...Adhesive surface 16...Unwinder stand addition...Vapor roll capital...Air cylinder 5...Swing arm I...・Limit switch 02... Old rewind roll 04... Cutting device r6' 06... Knife 12... Tensicon adjustment device 15... Paper edge 19... Presser η... Paper presser...・・Fully point 4・・Operating piece

Claims (1)

[Claims] In an unwinding device that operates with a process of splicing the web from the old unwinding roll to the new unwinding roll when replacing the unwinding roll, it is necessary to check the tension of the web at an appropriate position between the old unwinding roll and the winding section. a tension adjustment means that adjusts the movement without hindering the movement;
It is characterized by comprising adhesion detection means for detecting that the web of the old rewind roll and the web of the new rewind roll are adhered based on the change in web tension detected by the tension adjustment means. Unwinder device.