JPH069120A - Sheet material take-up device - Google Patents

Abstract

PURPOSE:To continuously switch a take-up shaft for taking up sheet materials without stopping take-up operation by disposing a machine score cutter, press roller, and a cutting and winding mechanism in a take-up shaft switch mechanism. CONSTITUTION:To switch a take-up shaft, a turret 11 in a sheet material winding part 10 is turned to a specified position. Then, while a sheet material 16 is being wound onto the spool 14a of an old take-up shaft 13a, a new take-up shaft 13b is rotated, and an arm 21 is turned by a cylinder 22 in a switching mechanism 20 to approach the turret 11. A cylinder 28 is used to contact a machine score cutter 30 with a cutter 30 and to abut a press roller 25 on a spool 14b for rotating the sheet material 16. A cutting and winding arm 27 is used to press the sheet material 16 against the spool 14b. The sheet material 16 is then cut at a machine score 16a and its tip is wound on the spool 14b.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sheet material winding device incorporated in, for example, a printing machine, a coater, a calendar or the like, and more specifically, switching of a sheet material winding shaft such as paper or plastic sheet. The present invention relates to a sheet material winding device capable of continuously performing the winding operation without stopping.

[0002]

2. Description of the Related Art In an apparatus for processing a sheet material such as paper or a plastic sheet, it is important to wind the sheet material without stopping the processing step from the viewpoint of improving the operating rate. . For this reason, conventionally, there has been used a sheet material winding device having a plurality of winding shafts and capable of exchanging the winding shafts without stopping the winding of the sheet material.

13 to 15 are schematic block diagrams for explaining the operation of such a conventional sheet winding material supply device, and FIGS. 16 to 19 are diagrams for explaining the problems of this conventional device. It is a figure.

As shown in FIG. 13, the conventional sheet material winding device switches the sheet material winding section 50 for winding the sheet material 56 supplied through the guide rollers 80, 58a and the winding shaft. The mechanism 60 is a main component.

The sheet material winding section 50 is provided with a turret 51 which is rotatable around a fulcrum 52. At both ends of the turret 51, a take-up shaft 53a provided with a spool (paper tube) 54a for taking up the sheet material, a take-up shaft 53b provided with a spool 54b for taking up the sheet material, and guide rollers 58a, 58b. Is provided. Switching mechanism 6
At 0, an arm 61 rotatable by a cylinder 62 about a fulcrum 61a, an arm 64 rotatable by a cylinder 63 about a fulcrum 64a on the arm 61, and a press roller 65 provided at the tip of the arm 64. And a cutter 67 that is rotatable by a cylinder 66 around a fulcrum 67a on the arm 64.

This conventional device operates as follows. When the sheet material 56 is wound on the spool 54a, the switching mechanism 60 is in a position (outside the area A shown by the broken line) that does not hinder the turning of the turret 51. Sheet material 56
When the material roll 57 wound up is close to the specified radius, the winding shaft 53b to which the spool 54b having the double-sided tape or the like adhered on the surface is attached starts to rotate.

First, the winding shaft 53b is started to rotate so that the traveling speed of the sheet material 56 and the peripheral speed of the spool 54b are matched. Next, as shown in FIG. 14, the switching mechanism 6
The arm 61 of 0 is brought close to the sheet material 56. After that, as shown in FIG. 15, the press roller arm 64 is brought close to the sheet material 56, and the sheet material 56 is pressed against the spool 54b by the press roller 65, and thereafter, as shown in FIG. Disconnect. By the above steps, the winding of the sheet material 56 by the winding shaft 53b starts.

[0008]

However, when the winding shaft is switched in the above-described conventional sheet material winding device, the folded portion 56a is formed at the tip of the sheet material 56 as shown in FIG. . This is because the tip 67a of the cutter 67 has a sawtooth shape as shown in FIG. 18, and thus the cut end of the cut sheet material 56 has a sawtooth shape as shown by a range L in the plan view of FIG. That the cutter 67
The cutting position by is separated from the spool 54b,
And the end of the cut sheet material 56 cannot be pressed against the spool 54b.

When such a folded portion 56a is formed,
Wrinkles were formed on the sheet material wound on it, and in particular, in the case of a thin sheet material, wrinkles could be formed on the inner sheet material of several tens of meters, resulting in a defective product.

Therefore, the present invention has been made to solve the above problems, and an object thereof is to continuously switch the sheet material winding shaft without stopping the winding process. An object of the present invention is to provide a sheet material winding device that can be wound and cannot be folded back on the winding shaft.

[0011]

A sheet material winding device according to the present invention comprises a first winding shaft for holding a first spool for winding a sheet material and a second spool for winding a sheet material. The second winding shaft to be held and the sheet material wound on the first spool are cut, and the sheet material on the downstream side of the cutting position is wound on the rotating second spool. In a sheet material winding device having a winding shaft switching mechanism, the winding shaft switching mechanism rotates a perforated cutter for making perforations in the traveling sheet material and the traveling sheet material. The press roller for pressing the sheet material so as to come into contact with the outer periphery of the second spool, and the sheet material by pressing the sheet material toward the second spool in the vicinity of the perforation position. The material is Cut with down first, and the cutting and winding mechanism pressed against the said second spool downstream of the sheet material from the cutting portion, the perforation cutter, the press roller,
And a control unit for controlling the operation of the cutting / winding mechanism.

[0012]

In the present invention, the sheet material is perforated by the perforation cutter, the sheet material is pressed by the press roller so as to contact the outer periphery of the second spool, and the perforation of the sheet material is performed by the cutting / winding mechanism. The sheet material is cut at perforations by pressing the vicinity toward the second spool, the sheet material is pressed against the second spool, and the sheet material is wound on the second spool.

The control unit, based on the distance from the perforated cutter to the cutting / winding mechanism and the traveling speed of the sheet material,
The timing when the press roller presses the sheet material and the timing when the cutting and winding mechanism presses the sheet material are determined.

[0014]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below based on the illustrated embodiments.

FIG. 1 is a schematic configuration diagram showing the configuration of an embodiment of a sheet material winding device according to the present invention. As shown in the figure, the sheet material winding device of the present embodiment mainly includes a sheet material winding unit 10 that winds a sheet material and a switching mechanism 20 that switches a winding shaft that winds the sheet material. I am trying.

The sheet material winding section 10 is provided with a turret 11 which is driven to rotate around a fulcrum 12 by a motor or the like. At both ends of the turret 11, a winding shaft 13a having a spool 14a and a winding shaft 13b having a spool 14b are provided. The turret 11 is also provided with guide rollers 15a and 15b for guiding the sheet material 16. Here, the sheet material 16 is wound around the spool 14a, and the spool 1
4b is in a standby state. An adhesive tape (not shown) is provided on the surface of the spool 14b in the standby state.

The switching mechanism 20 includes an arm 21 which can be swung around a fulcrum 21a by a cylinder 22, a press roller arm 24 which can be swung around a fulcrum 24a on the arm 21 by a cylinder 23, and an arm 24 for the press roller. A press roller 25 provided at the tip and a cutting / winding arm 27 that can be swung by a cylinder 26 around a fulcrum 27a on the arm 21 are provided.

The switching mechanism 20 includes a cylinder 28.
Thus, an arm 29 that can rotate about a fulcrum 29a and a perforated cutter 30 that is provided at the tip of this arm 29 are provided. This perforated cutter 30
Is a roller 30a that can be driven to rotate, and this roller 30a
A plurality of teeth 30b aligned in the rotation axis direction (direction perpendicular to the paper surface of FIG. 1). The position of the tooth 30b in the standby state is a predetermined position. Also,
The roller 31 is formed of an elastic member such as rubber so that the teeth 30b of the cutter bite into it.

2 to 10 are diagrams for explaining the switching operation of the winding shaft in the sheet material winding device of this embodiment. The device of this embodiment operates as follows.

First, the turret 11 is turned by a driving mechanism such as a motor and stopped at a predetermined position detected by a position detecting means such as a limit switch or a photoelectric sensor.
When the sheet material 16 is wound around the spool 14a of the winding shaft 13a (hereinafter also referred to as "old winding shaft") on the turret 11, the winding shaft 13b (hereinafter referred to as "new winding shaft"). (Also referred to as ".") To match the peripheral speed of the spool 14b with the traveling speed of the sheet material 16, and then the arm 21 of the switching mechanism 20 is swung by the cylinder 22 as shown in FIG. Move closer to turret 11.

Next, as shown in FIG. 3, the cylinder 2
The perforation cutter 30 is brought into contact with the sheet material 16 traveling on the roller 31 by 8 to perforate the sheet material 16. Here, if the perforation cutter 30 is brought into contact with the sheet material 16 for a certain period of time or more, perforations are formed at a plurality of locations, so the perforation cutter 30 is brought into contact with the sheet material 16 for a moment and then immediately released.

Next, as shown in FIG. 4, the running sheet material 16 is pressed against the surface of the rotating spool 14b by the press roller 25. Thereafter, as shown in FIGS. 5 and 6, the tip of the cutting / winding arm 27 presses the sheet material 16 toward the spool 14b in the vicinity of the perforation 16a. At this time, as shown in FIG. 7, the sheet material 16 is cut at the perforations 16a, and thereafter, as shown in FIG. 8, the tip of the sheet material 16 is pressed against the spool 14b, and the sheet material 16 is pressed. As shown in FIG. 5, the tip of the sheet material 16 is wound around the spool 14b. At this time, since the sheet material 16 is pressed against the spool 14b by the tip of the cutting / winding arm 27, the tip of the sheet material 16 cannot be folded back. Here, the timing at which the press roller 25 presses the sheet material 16 against the spool 14b and the cutting / winding arm 27 causes the sheet material 16 to move.
The timing of pressing is the distance from the perforation cutter 30 to the tip of the cutting / winding arm 27 (at this distance, from the initial position of the teeth 30b of the perforation cutter 30 to the position where the perforation cutter 30 and the roller 31 come into contact with each other. Roller 3
It also includes the distance on the circumference of 0a. ) And the traveling speed of the sheet material 16 are determined by a control unit (not shown). Furthermore, the timing at which the cutting / winding arm 27 presses the sheet material 16 is determined in consideration of the thickness and material of the sheet material.

In the above embodiment, the case where the perforated cutter 30 is driven to rotate by contact with the sheet material 16 has been described. However, as shown in FIG. 11, the roller 31 for guiding the sheet material 16 is chained. The perforated cutter 30 is driven by the gear 32 driven by 31a, the gear 33 abutting against the gear 32, and the belt 34 wound around to drive the perforated cutter 30.
You may rotate at the same peripheral speed as the traveling speed of 6. Further, as shown in FIG. 12, the rotation speed of the perforated cutter 30 may be controlled by using another drive mechanism 35 having a motor M.

In the above embodiment, the case where the turret 11 is provided with two winding shafts has been described.
It may have three or more winding shafts.

Further, in the above embodiment, the case where the perforated cutter 30, the press roller 25, and the cutting / winding arm 27 are pivotally moved around the fulcrum has been described, but these are directly attached to the tip of the cylinder. It may be attached and moved linearly.

[0026]

As described above, according to the present invention, the switching of the winding shaft for winding the sheet material can be continuously performed without stopping the winding operation.
The effect that there is no folded-back portion at the tip of the winding is obtained.

[Brief description of drawings]

FIG. 1 is a schematic configuration diagram showing an embodiment of a sheet material winding device according to the present invention.

FIG. 2 is an explanatory view of the switching mechanism of the embodiment of FIG. 1 (No. 1).
Is.

FIG. 3 is an explanatory view of the switching mechanism of the embodiment of FIG. 1 (Part 2).
Is.

FIG. 4 is an explanatory view of the switching mechanism of the embodiment of FIG. 1 (Part 3).
Is.

5 is an explanatory view of the switching mechanism of the embodiment of FIG. 1 (No. 4).
Is.

FIG. 6 is an explanatory view of the switching mechanism of the embodiment shown in FIG. 1 (Part 5).
Is.

FIG. 7 is an explanatory view (6) of the switching mechanism of the embodiment of FIG.
Is.

FIG. 8 is an explanatory view (No. 7) of the switching mechanism of the embodiment of FIG.
Is.

FIG. 9 is an explanatory view (No. 8) of the switching mechanism of the embodiment of FIG.
Is.

10 is an explanatory view (No. 9) of the switching mechanism of the embodiment of FIG.

FIG. 11 is a schematic configuration diagram showing another example of a perforated cutter.

FIG. 12 is a schematic configuration diagram showing still another example of a perforated cutter.

FIG. 13 is a schematic configuration diagram showing an example of a conventional sheet material feeding device.

FIG. 14 is an explanatory diagram (part 1) of the operation of the apparatus of FIG.

FIG. 15 is an operation explanatory diagram (2) of the apparatus of FIG.

FIG. 16 is an explanatory diagram (Part 3) of the operation of the apparatus of FIG.

FIG. 17 is a diagram for explaining a problem of the device of FIG.

FIG. 18 is a diagram for explaining a problem of the device of FIG.

FIG. 19 is a diagram for explaining a problem of the device of FIG.

[Explanation of symbols]

 10 Sheet Material Winding Part 11 Turret 13a, 13b Winding Shaft 14a, 14b Spool 16 Sheet Material 20 Switching Mechanism 25 Press Roller 27 Cutting / Winding Arm 30 Perforated Cutter

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[Procedure amendment]

[Submission date] August 6, 1992

[Procedure Amendment 1]

[Document name to be amended] Statement

[Name of item to be corrected] Claim 1

[Correction method] Change

[Correction content]

[Procedure Amendment 2]

[Document name to be amended] Statement

[Name of item to be corrected] 0003

[Correction method] Change

[Correction content]

[0003] FIGS. 13 to 15 such conventional sea
FIG. 16 is a schematic configuration diagram for explaining the operation of the feeding material winding device , and FIGS. 16 to 19 are diagrams for explaining the problems of this conventional device.

[Procedure 3]

[Document name to be amended] Statement

[Correction target item name] 0011

[Correction method] Change

[Correction content]

A sheet material winding device according to the present invention includes a first winding shaft for holding a first spool for winding a sheet material,
A second winding shaft that holds a second spool that winds the sheet material and the sheet material that is wound on the first spool are cut, and the sheet material on the upstream side of the cutting position is rotated. In the sheet material winding device having a winding shaft switching mechanism that winds the second spool, the winding shaft switching mechanism includes a perforated cutter that perforates the running sheet material. A press roller for pressing the sheet material so that the running sheet material contacts the outer periphery of the rotating second spool, and the second spool near the perforation position of the sheet material. in the presses it toward, the sheet material is cut in the perforations, and cut-winding mechanism pressed against the said second spool upstream of the sheet material from the cutting portion, the perforation cutter, Serial press roller, and is characterized by a control unit for controlling the operation of the cutting and winding mechanism.

[Procedure amendment 4]

[Document name to be amended] Statement

[Correction target item name] 0026

[Correction method] Change

[Correction content]

As explained above, according to the present invention,
It is possible to continuously switch the winding shaft for winding the sheet material without stopping the winding operation, and moreover, it is possible to obtain an effect that no folded-back portion is formed at the leading end of the winding.

[Procedure Amendment 5]

[Document name to be amended] Statement

[Name of item to be corrected] Fig. 14

[Correction method] Change

[Correction content]

14 is an operation explanatory view of the apparatus of FIG. 13 (Part 1).

[Procedure correction 6]

[Document name to be amended] Statement

[Correction target item name] Figure 15

[Correction method] Change

[Correction content]

A [15] Operation of the device of FIG. 13 (Part 2).

[Procedure Amendment 7]

[Document name to be amended] Statement

[Correction target item name] Fig. 16

[Correction method] Change

[Correction content]

A [16] Operation of the device of FIG. 13 (Part 3).

[Procedure Amendment 8]

[Document name to be amended] Statement

[Name of item to be corrected] Fig. 17

[Correction method] Change

[Correction content]

17 is a diagram for explaining a problem of the device of FIG.

[Procedure Amendment 9]

[Document name to be amended] Statement

[Name of item to be corrected] Fig. 18

[Correction method] Change

[Correction content]

18 is a diagram for explaining a problem of the device of FIG.

[Procedure Amendment 10]

[Document name to be amended] Statement

[Name of item to be corrected] Fig. 19

[Correction method] Change

[Correction content]

19 is a diagram for explaining a problem of the device of FIG.

Claims (4)

[Claims] 1. A first winding shaft that holds a first spool that winds a sheet material, a second winding shaft that holds a second spool that winds a sheet material, and the first spool. A sheet material winding device including: a winding shaft switching mechanism that cuts the sheet material wound around the sheet and winds the sheet material on the downstream side of the cut location onto the rotating second spool. , The winding shaft switching mechanism is in contact with the perforated cutter that perforates the running sheet material and the outer periphery of the second spool on which the running sheet material is rotating, A press roller for pressing the sheet material, and by pressing the sheet material toward the second spool in the vicinity of the perforation position, the sheet material is cut at the perforation, and the downstream side of the cutting location. Sheet A sheet material, comprising: a cutting / winding mechanism that presses against the second spool; and a control unit that controls the operations of the perforated cutter, the press roller, and the cutting / winding mechanism. Take-up device. 2. The sheet material according to claim 1, further comprising a turret rotatable about a rotation axis, the turret including the first winding shaft and the second winding shaft. Take-up device. 3. The perforated cutter has a rotating roller and a plurality of teeth arranged on the outer circumference thereof.
The described sheet material winding device. 4. The control unit controls the timing at which the press roller presses the sheet material and the cutting / winding operation based on the distance from the perforated cutter to the cutting / winding mechanism and the traveling speed of the sheet material. The sheet material winding device according to claim 1, wherein the attaching mechanism determines the timing of pressing the sheet material.