JP2718126B2 - Winding device - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a winding device for winding paper that has been cut to a required width along a flow direction.

[Prior art] Generally, paper manufactured by a paper machine is wide, so that the paper wound by a winder at the end of the paper machine is subjected to necessary processing and then cut into a suitable width by a slitter. Then, it is necessary to change the winding roll into a winding roll having a uniform hardness without a break by a winding device so as to have a winding roll width suitable for a dot printing press or the like.

As this type of winding device, for example, JP-A-60-3625
As shown in FIG. 2, there is a paper as shown in FIG. 3, which extends in the width direction of the paper 30 at a required position downstream of the slitter 31 for dividing the paper 30 into an appropriate width. The winding drums 32, 32 are arranged, and an auxiliary drum is provided between the winding drums 32, 32.
33, floors 34, 34 on the outer peripheral sides of the winding drums 32, 32
On the sled members 35, 35 disposed above, the support arms 36,
Cylinders 38, 38 for pivotally mounting the pivots 36 around the shaft bearing points 37, 37 and for swinging the support arms 36, 36.
And the cores 39, 39 are rotatably supported at the tips of the support arms 36, 36.

Thereby, the paper 30a divided by the slitter 31
30b is alternately distributed to the winding drum 32 and the auxiliary drum 33 from one end side in the width direction to the other end side, and the paper 30a distributed to the winding drum 32 on the left side in FIG.
It is wound around the core 39 by the rotation of 2 and wound up,
Further, the paper 30b distributed to the auxiliary drum 33 is wound on the winding drum 32 on the right side in the drawing and is wound around the core 39 by the rotation of the winding drum 32.

As the winding of the paper 30a, 30b on the cores 39, 39 proceeds, the diameter and weight of the winding rolls 40, 40 increase, and accordingly the cylinders 38, 38 gradually extend to support arms 36,
By rotating the 36 upward, it is attempted to prevent the nip pressure on the winding drums 32, 32 from increasing due to the increase in the weight of the winding rolls 40, 40, and to maintain the nip pressure at an optimum value.

[Problems to be Solved by the Invention] However, in the winding device as described above, since the support arms 36, 36 rotate around the shaft support points 37, 37, respectively, the winding rolls 40, 40 As the diameter increases, the inclination angle of a straight line connecting the axis of the winding rolls 40, 40 and the axis of the winding drums 32, 32 changes every moment. And the take-up drums 32, 32, the nip pressure between the cylinders 38,
It can be said that the adjustment at 38 has the disadvantage that the control is extremely complicated and it is difficult to control the winding hardness of the winding rolls 40, 40.

The present invention has been made in view of the above circumstances, and aims to provide a winding device capable of improving the controllability of the nip pressure and easily setting the winding hardness of the winding roll.

[Means for Solving the Problems] According to the present invention, a pair of frames extending in parallel with each of the winding drums is disposed above a pair of winding drums extending in the paper width direction and driven to rotate. A support carriage movable along each frame is provided, and each of the take-up drums is inclined below the support carriage in a vertical plane perpendicular to the paper width direction. Cylinders extending in respective linear directions intersecting with the axis of the cylinder are provided so as to be located above the respective winding drums. At the rod ends of the respective cylinders, cores for paper winding contacted and rotated by the respective winding drums are provided. A carriage to be supported is mounted, and a pair of paper rolls are arranged between the respective winding drums to distribute the width-divided paper to the respective winding drums via a slitter disposed between the respective winding drums. Drum An inclined portion is provided at a position near the upper side to guide the take-up roll of paper extended from the floor and wound on the core to the floor by simply removing the core from the carriage. Things.

[Operation] Accordingly, positioning of each support carriage in the paper width direction is performed according to each width dimension of the paper that is width-divided by the slitter disposed above each winding drum, and the width corresponding to each width dimension of the paper is adjusted. In the state in which the length of the core is wrapped between the carriages, and the cylinders are respectively extended, the paper divided into widths and sent from above through the slitter is distributed to the respective winding drums via the respective paper rolls. Each of the winding drums is wound around each of the cores by rotation driving to form a winding roll. Even when the diameter of each of the winding rolls changes, each of the cylinders is positioned on a straight line passing through the axis of each of the winding drums. , The force of each cylinder is directly reflected on the nip pressure, the nip pressure can be easily adjusted, and the winding hardness of the take-up roll can be set freely.

When the winding of each of the papers is completed and the cores of the respective winding rolls are respectively removed from the respective carriages, the respective cylinders are inclined and disposed in a reverse U-shape. It is placed on the floor from the inclined portion of the floor without applying any force and sent to a packaging line or the like.

On the other hand, in the present invention, since the paper is guided from above between the respective winding drums, monitoring of the paper during the winding process is improved.

[Example] Hereinafter, an example of the present invention will be described with reference to the drawings.

FIG. 1 shows an embodiment of the present invention, in which a pair of bases 2 and 2 extending below the floors 1 and 1 and extending in the width direction of the paper 3 (a direction perpendicular to the plane of FIG. 1) are respectively driven to rotate. The winding drums 4, 4 are installed, and the respective winding drums 4, 4 are provided above the respective winding drums 4, 4.
A pair of frames 5, 5 extending in parallel to the main frame 6 are arranged so as to be fixed to the main frame 6, and guide rails 7, 7 are attached to the respective frames 5, 5, respectively, and the guide rails 7, 7, respectively,
The L-shaped support carts 8, 8 are disposed so as to be movable in the width direction of the paper 3 via the guide pieces 9, 9, and the legs 10, 10 extending below the support carts 8, 8 are inverted C-shaped. Brackets 12 and 12 are protruded in the middle of the inclined surfaces 11 and 11 in the shape of
The cylinders 13 and 13 are attached to the cylinders 12 and 13 in parallel with the inclined surfaces 11 and 11 respectively.
Carriage 1 capable of supporting one end of each of paper winding cores 15
Guide rails 17, 16 fixed to the respective inclined surfaces l1, l1
Provided movably along 17.

Each of the cylinders 13, 13 is inclined in the shape of an inverted letter C in a vertical plane (plane parallel to the plane of FIG. 1) perpendicular to the width direction of the paper 3, and each of the winding drums 4, 4 It is located on each of the straight lines 1 _a and 1 _b intersecting with the axes a and b.

Further, drive motors 18, 18 are mounted on the support carts 8, 8, respectively, and pinions 19, 19, which are rotationally driven by the drive motors 18, 18, respectively, are mounted on the frames 5, 5, respectively. The support carts 8, 8 can be moved in the width direction of the paper 3 by rotating the respective pinions 19, 19 by meshing with the racks 20, 20 extending in the longitudinal direction.

Also, a pair of small-diameter paper rolls 21, 21 parallel to the respective winding drums 4, 4 are disposed between the respective winding drums 4, 4, and some guide rolls are disposed between the respective winding drums 4, 4 from above. twenty two
The paper 3a, 3b divided by a slitter 23 and divided into widths is distributed to the winding drums 4, 4 via the paper rolls 21, 21, respectively.

A plurality (even number) of the supporting carts 8, 8 are provided in the width direction of the paper 3 respectively, and the carriage 15 is adjacent to each other in the width direction of the paper 3 by the carriages 16, 16. , 15 at both ends. Further, in the figure, reference numerals 24, 24 indicate inclined portions of the floors 1, 1.

 Next, the operation of the above embodiment will be described.

First, according to each width dimension of the paper 3a, 3b which is width-divided by the slitter 23, each drive motor 18, 18 is driven to drive each support carriage 8, 8
Of the paper 3 in the width direction, and cores 15, 15 having a length corresponding to the width dimensions of the paper 3 a
Each of the cylinders 13 and 13 is extended as shown by a solid line in FIG.

In this state, the papers 3a and 3b that have passed through several guide rolls 22 from above between the respective winding drums 4 and 4 and have been width-divided through the slitter 23 are respectively passed through the respective paper rolls 21 and 21 and the respective winding drums 4 and 4. , 4 and are wound around the cores 15, 15 by the rotational drive of the winding drums 4, 4, respectively.

In the initial stage of winding the paper 3a, 3b on each core 15, 15, the weight of each winding roll is too light, and the nip pressure on each winding drum 4, 4 is small only by the own weight of each winding roll. Because it is too long, the respective winding rolls are pressed against the respective winding drums 4, 4 by the respective cylinders 13, 13, and if necessary, the pressing force is increased by a rider roll (not shown) to maintain the nip pressure at a required value. The winding of the paper 3a, 3b around the cores 15, 15 proceeds, and as shown by the two-dot chain line in FIG. If the nip pressure with respect to exceeds the required value, contrary to the above, each of the cylinders 13 and 13 urges each of the winding rolls in a pulling-up direction to support a part of the weight of each of the winding rolls, Maintain the nip pressure at the required value.

Here, each of the carriages 16 and 16 respectively, the axis a of each winding drum 4, 4, a straight line l _a through b, Yes and arranged to travel on l _b, the position preparative said each volume Since it does not change even if the diameter of the roll changes, the adjustment of the nip pressure becomes easy and a winding roll having a desired winding hardness can be obtained.

When the winding of the papers 3a and 3b is completed and the cores 15 and 15 of the winding rolls are removed from the carriages 16 and 16, respectively, the cylinders 13 and 13 are inclined and disposed in an inverted C-shape with each other. Therefore, each of the winding rolls can be moved from the inclined portions 24, 24 of the floor 1, 1 without applying any external force.
It is placed on 1, 1 and sent to a packaging line (not shown).

On the other hand, in the embodiment shown in FIG. 1, since the third is a so-called overfeed type in which the third is guided from above between the winding drums 4, 4, monitoring of the paper 3 during the winding process is improved. .

Note that the winding device of the present invention is not limited to the above-described embodiment, and it is needless to say that various changes can be made without departing from the gist of the present invention.

[Effects of the Invention] As described above, according to the winding device of the present invention, the controllability of the nip pressure is improved, the setting of the winding hardness of the winding roll is facilitated, and the winding process during the winding process is facilitated. The monitoring of the paper is improved, and the take-up roll can be easily moved onto the floor after the completion of the take-up without any special equipment for applying force to the take-up roll from outside. It can provide excellent effects such as the formation of

[Brief description of the drawings]

FIG. 1 is a side sectional view of one embodiment of the present invention, and FIG. 2 is a side sectional view of a conventional example. 3, 3a, 3b are paper, 4 is a take-up drum, 5 is a frame, 7 is a guide rail, 8 is a support cart, 13 is a cylinder, 15 is a core,
16 carriage, 18 drive motor, 19 a pinion, 20 denotes a rack, 21 paper roll, 23 slitter, 24 inclined section, a, b is the axial center, l _a, l _b is a straight line.

Claims (1)

(57) [Claims] 1. A pair of frames extending in parallel with the respective winding drums are disposed above a pair of winding drums extending in the paper width direction and driven to rotate, and each of the frames extends along the respective frame. Movable support carts are arranged, and each straight line which is inclined in a reverse U-shape in a vertical plane perpendicular to the paper width direction and intersects with the axis of each winding drum, below the respective support carts. And a carriage that supports a paper winding core contacted and rotated by each of the winding drums is attached to the rod end of each of the cylinders. Between the take-up drums, a pair of paper rolls for distributing the width-divided paper to the respective take-up drums via a slitter disposed above the respective take-up drums are disposed, and at a position near the upper side of each of the take-up drums. Each one Take-up device, characterized in that a winding roll of paper wound on extending to and said core from A only removing the core from the carriage an inclined portion for guiding onto the floor.