JPH07157157A - Paper winder - Google Patents

Abstract

PURPOSE:To neatly wind paper sheets on a paper tube by providing a winding guide so that the winding end of the paper sheet pressed on the circumferential surface of the paper tube by a press-down roller can be attached and detached from a rotation shaft in order to wind it round the circumferential surface of the paper tube by a feeding roller. CONSTITUTION:An oscillation block 18 makes its attaching/detaching directions against a turret 4 freely oscillating pivoting a transfer roller 7. By such oscillation, a press-down roller 17 makes a paper sheet P supplied to a paper tube 2, which is supported by a rotation shaft 3a in the winding position, capable of attaching on and detaching from the rotation shaft 3a so as to press it against the circumferential surface of the paper tube 2. The winding end of the paper sheet P is than guided by respective idle rollers 26, 28, 29, 30 of respective winding pawls 24, 25. Thus paper sheets P wound on the paper tube 2 can be used neatly to the last.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for winding continuous paper on a paper tube in a roll.

[0002]

2. Description of the Related Art In a conventional device of this type, the winding end is fixed to the paper tube with glue or an adhesive tape, or the winding end is inserted and locked in a slit provided in the paper tube. ,
It is configured to be wound around a paper tube.

[0003]

Therefore, in the past, when glue or adhesive tape was used, there was the inconvenience that the paper wound around the paper core could not be used up to the end cleanly, and the slits When the winding end is inserted and locked, there is a disadvantage that unless the winding end is correctly inserted in a predetermined state, the winding end cannot be accurately wound and the winding end is wound in a bent state.

SUMMARY OF THE INVENTION It is an object of the present invention to solve these problems and to provide a paper winding device which can cleanly wind around a paper tube and can completely use up the paper wound around the paper tube to the end. And

[0005]

In order to achieve this object, a sheet winding device of the present invention has a rotating shaft for supporting a paper tube for winding a sheet and a paper tube supported by the rotating shaft. A paper supply mechanism having a plurality of transfer rollers for supplying paper, and for pressing the paper supplied by the paper supply mechanism against the peripheral surface of the paper tube against the paper tube supported by the rotating shaft. A press roller provided so as to be able to come into contact with and separate from the rotary shaft, and a feed roller that rotates at a peripheral speed higher than the peripheral speed of the paper tube rotated by the rotary shaft, and the press roller causes the paper to rotate. The winding guide is provided so as to be able to come in contact with and separate from the rotation shaft so that the winding end of the paper pressed against the peripheral surface of the tube is wound around the peripheral surface of the paper tube by the feed roller.

[0006]

In the paper tube supported by the rotary shaft, the take-up end of the paper supplied by the paper supply mechanism is pressed against the peripheral surface of the paper tube by the pressing roller, and the paper tube is rotated by the rotary shaft. The take-up end of the paper is wound around the peripheral surface of the paper tube with a feed roller that rotates at a peripheral speed higher than the peripheral speed. During this winding operation, the feed roller rotates faster than the peripheral speed of the paper tube, so that the paper can be reliably wound around the paper tube without slipping the winding end of the paper. After this winding, the winding guide is separated from the peripheral surface of the paper tube, and the paper is wound by the rotation of the rotary shaft.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT A preferred embodiment of the present invention will be described in detail below with reference to the accompanying drawings. Here, FIG. 1 is a schematic side view of the entire paper winding device, and FIGS. 2 to 9 are schematic explanatory views of a main part showing a paper winding operation in a cross section of a paper tube.

As shown in FIG. 1, the paper winding device 1 is
Triaxial turret 4 having three rotating shafts 3a, 3b, 3c for supporting a paper tube 2 for winding a continuous paper P.
The paper tube 2 is inserted into and supported by a rotary shaft (3a in FIG. 1) located above the turret 4 rotated by 120 degrees, and the paper P is wound around the paper tube 2.
The paper tube 2 is formed by arranging a plurality of paper tubes having a predetermined width side by side in the axial direction. Further, the paper winding device 1 includes a plurality of transfer rollers 5, 6, for supplying the paper P to the paper tube 2 supported by the rotating shaft (3a in FIG. 1) located at the upper winding position. A paper supply mechanism composed of 7, 8, 9, 10, 11, 12, 13, and 14 is provided, and these transfer rollers 5, 6, 7, 8, 9, 10, 11, 12, 13, and 14 have: The paper P pulled out from the original roll 15 is supplied.

Each of the above-mentioned transfer rollers 5, 6, 7, 8, 9,
Of the 10, 11, 12, 13, and 14, the transfer rollers 5, 6, and 7 on the turret 4 side are rotatably supported by the swing block 18 together with the lower slitter blade 16 and the pressing roller 17, and The swing block 18 is the transfer roller 7.
The shaft can be swung in the direction of approaching and separating from the turret 4. Due to the swing of the swing block 18, the pressing roller 17 moves the rotation shaft (3 in FIG. 1) at the winding position.
In order to press the paper P supplied to the paper tube 2 supported by a) against the peripheral surface of the paper tube 2, the rotary shaft (3 in FIG. 1).
It is configured to be able to come into contact with and separate from a). The rocking block 18 is rocked by a rocking cylinder 20 supported by a machine frame 19, and the rocking block 1
8 is provided with a slitter upper blade 21 that cooperates with the slitter lower blade 16 to cut the paper P in accordance with the winding width of each paper tube.

A pair of winding cylinders 22 and 23 are arranged with the turret 4 in between, and winding claws 24 and 25 are provided at the tips of the cylinder rods, respectively.
The pair of winding cylinders 22 and 23 having the winding claws 24 and 25 form a winding guide. The winding claws 24 and 25 are respectively the paper tubes 2
It has an arcuate pressing surface that fits the peripheral surface of the. Further, three free-running rollers 26, 28, 29 are rotatably supported on the pressing surface of the winding claw 24, and two driving rollers 27, 31 and one driving roller 27, 31 on the pressing surface of the winding claw 25. The idle roller 30 is rotatably supported, and the drive rollers 27 and 31 constitute feed rollers. The peripheral speed of the drive rollers 27, 31 is set to be higher than the peripheral speed of the paper tube 2 rotated by the rotary shafts 3a, 3b, 3c.

The cylinder rod of one winding cylinder 23 projects toward the central axis of the rotating shaft (3a in FIG. 1) at the winding position, and the cylinder rod of the other winding cylinder 22 rotates at the winding position (see FIG. 1). 3a) is configured to project toward a position deviated from the central axis. Therefore, the winding claw 24 of the winding cylinder 22 is attached to the cylinder rod as shown in FIG. 1 so that the pressing surface abuts the peripheral surface of the paper tube 2 supported by the rotation shaft (3a in FIG. 1) at the winding position. It is swingably supported in the counterclockwise direction and is urged counterclockwise in FIG. 1 by the coil spring 32 so as to return to its original position.

Further, the cutter cylinder 33 is provided at a corresponding position between the rotary shaft at the winding position and the rotary shaft located at the lower right.
And a cutter head 34 is provided at the tip of the cylinder rod. This cutter head 3
Reference numeral 4 denotes suction portions 35a and 35b which are communicated with a negative pressure suction device (not shown) so that a negative pressure suction force for sucking the paper P acts, and a cutter blade 3 located between them.
It consists of 6 and 6.

Next, the operation of the above-described paper winding device 1 will be described with reference to FIGS. First, in the initial standby state of FIG. 2, the paper P is transferred to the transfer rollers 5, 6, 7,
By 8, 9, 10, 11, 12, 13, and 14, the winding end is moved to a position where it passes through the transfer roller 5 and the pressing roller 17, and the swing block 18 is moved to the winding position of the turret 4. It is in a position away from a certain rotating shaft 3c, and the cylinder rods of the winding cylinders 22 and 23 and the cutter cylinder 33 are in a thrust state. At this time, the slitter upper blade 21 comes into contact with the slitter lower blade 16, and when the sheet P passes through this, the sheet P is cut and supplied to a predetermined width corresponding to the winding width of each paper tube. In this state, the plurality of paper tubes 2 are inserted side by side on the rotating shaft 3a located at the lower left.

Next, as shown in FIG. 3, the turret 4 is rotated by a predetermined angle to move the rotary shaft 3a to a predetermined winding position, and then the rocking cylinder 20 is driven to rock the rocking block 18. It moves and presses the winding end of the paper P against the peripheral surface of the paper tube 2 by the pressing roller 17. Then, as shown in FIG. 4, the winding cylinders 22 and 23 are driven so that the cylinder rods are projected to bring the winding claws 24 and 25 into contact with the peripheral surface of the paper tube 2. At this time, the winding claw 24 is
After the tip end portion provided with the idle roller 26 comes into contact with the peripheral surface of the paper tube 2, it advances along the peripheral surface of the paper tube 2 while swinging counterclockwise, and the pressing surface thereof is the paper tube. Paper P on the circumference of 2
The winding end of is pressed.

Next, the rotary shaft 3a is rotated clockwise in FIG.
4 is rotated counterclockwise in FIG. 4 at a peripheral speed higher than the peripheral speed of the paper tube 2 rotated by the rotary shaft 3a, and the winding end of the paper P is rotated by the idle rollers of the winding claws 24, 25. , 2
Guide with 8, 29, 30 and winding claw 25
After the paper P is wound around the peripheral surface of the paper tube 2 by pulling the winding end of the paper P by the drive rollers 27 and 31, the rotary shaft 3a and the drive rollers are wound. The rotation of 27 and 31 is stopped. Here, the paper tube 2 on which the paper P is next wound around the rotary shaft 3b located at the lower left.
Is inserted.

Subsequently, as shown in FIG. 5, the winding cylinders 22 and 23 are driven, the cylinder rods are pushed in to separate the winding claws 24 and 25 from the peripheral surface of the paper tube 2, and then they are rotated. The shaft 3a is rotated again to wind the paper P around the paper tube 2. At this time, the rocking block 18 moves the paper P
According to the winding amount of the paper core 2, the paper core 2 is gradually swung in a direction away from the paper core 2. Then, as shown in FIG. 6, when a predetermined amount of paper P is wound up, the rotation of the rotary shaft 3a is stopped.
At this stage, the rotary shaft 3b located on the lower left side described above.
Then, the paper tube 2a for winding the paper P next may be inserted.

Next, as shown in FIG. 7, the turret 4
Rotation shaft 3 with a new paper tube 2 inserted
Let b move to the upper winding position. Then, as shown in FIG. 8, the swing block 18 is swung again in the direction of the rotary shaft 3b, the paper P is pressed against the peripheral surface of the paper tube 2 by the pressing roller 17, and then the cutter cylinder 33 is driven to drive the cutter. The head 34 is brought into contact with the sheet P located between the rotating shafts 3a and 3b, and the suction portions 35a, 3
A negative pressure suction force is applied to the sheet 5b to move the sheet P to the cutter blade 36.
Disconnect with. Here, a new paper tube 2 is attached to the rotary shaft 3c.
To prepare for the winding operation after the paper tube 2. Then, the negative pressure suction force to the suction portions 35a and 35b is cut off, and the cutter cylinder 33 is re-driven to separate the cutter head 34 from the paper P, as shown in FIG. In this state, the paper tube 2 wound with the paper P is attached to the rotary shaft 3
It leaves from a.

In the state of FIG. 9, the paper tube 2 on which the paper P is to be wound next is inserted in the rotary shaft 3b and is in the upper winding position, and is in the same state as in FIG. Then, the winding of the paper P around the new paper tube 2 is performed in the same manner as the series of operations shown in FIGS. 4 to 9 described above, and the same operation is repeated thereafter to continuously wind the paper P. A take action can be performed.

The present invention is not limited to the above-described embodiment, but the rotary shafts 3a, 3b and 3c are not limited to three supported on the turret 4, but are constituted by only one rotary shaft. You can also Further, the upper and lower slitter blades 21 and 16 are not necessary, and the original width of the paper P may be wound around a long paper tube corresponding to this width.

[0020]

As is apparent from the above description,
According to the present invention, since it is not necessary to use glue or adhesive tape, or to use the slit formed in the paper tube, it is possible to cleanly wind the paper around the paper tube and clean the paper wound around the paper tube to the end. The effect is that it can be used up.

[Brief description of drawings]

FIG. 1 is a schematic side view of an entire sheet winding device.

FIG. 2 is a schematic explanatory diagram of a main part showing a sheet winding operation.

FIG. 3 is a schematic explanatory view of a main part of the paper winding operation of the same.

FIG. 4 is a schematic explanatory diagram of a main part showing the paper winding operation.

FIG. 5 is a schematic explanatory view of a main part of the paper winding operation of the same.

FIG. 6 is a schematic explanatory diagram of a main part showing the paper winding operation.

FIG. 7 is a schematic explanatory view of a main part of the paper winding operation of the same.

FIG. 8 is a schematic explanatory view of a main part of the paper winding operation of the same.

FIG. 9 is a schematic explanatory view of a main part of the paper winding operation of the same.

[Explanation of symbols]

1 Paper take-up device 2, 2a, 2b Paper tube 3a, 3b, 3c Rotation axis 5, 6, 7, 8, 9, 10, 11, 11, 12, 13, 14
Transfer roller 17 Pressing roller 18 Swing block 19 Machine frame 20 Swing cylinder 22,23 Winding cylinder 24,25 Winding claw 27,31 Drive roller 33 Cutter cylinder 34 Cutter head 35a, 35b Suction part 36 Cutter blade

Claims (1)

[Claims] 1. A paper feeding mechanism comprising a rotating shaft for supporting a paper tube for winding the paper, and a plurality of transfer rollers for supplying the paper to the paper tube supported by the rotating shaft; A pressing roller provided so as to come into contact with and separate from the rotating shaft to press the paper supplied by the paper supply mechanism against the peripheral surface of the paper tube supported by the shaft, The paper is provided with a feed roller that rotates at a peripheral speed faster than the peripheral speed of the paper tube that is rotated by a shaft, and the take-up end of the paper pressed against the peripheral surface of the paper tube by the pressing roller is the paper by the feed roller. A sheet winding device, comprising: a winding guide which is provided so as to be able to come into contact with and separate from the rotation shaft so as to be wound around the peripheral surface of the tube.