JPH0986733A - Winder of slitter - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a winder of a slitter, the constitution of which is simplified, and the cost of which is reduced. SOLUTION: Two feed screws 1a, 1b are extended parallel to each other, the feed directions are the same direction, and plural pairs of take-up arms 2L, 2R are arranged along the feed screws. In each pair of take-up arms, a nut is provided on one take-up arm and screwed on one feed screw, a nut is provided on the other take-up arm and screwed on the other feed screw, the respective feed screws are rotated in the opposite directions to each other, one and the other take-up arms 2L, 2R are moved in the opposite directions to each other, and a take-up core is chucked between both take-up arms 2L, 2R.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a slitter for slitting a continuous web of paper, plastic film or the like into a plurality of strips and winding the slit on a winding core, and more particularly to a winding device for the slitter.

[0002]

2. Description of the Related Art Generally, in a winding device for a slitter, a plurality of pairs of winding arms are arranged at intervals, and in each pair of winding arms, a winding core is arranged between both winding arms. Then, the winding core is chucked by the chucking mechanism of the winding arm. Usually, when a cylinder is used as the chucking mechanism and the winding core is arranged between both winding arms, the contact is pushed out by the cylinder in both winding arms, and this is pressed against both ends of the winding core. . Therefore, the winding core is chucked by the cylinder and the contact. Then, the drive motor drives the cylinder, the contactor, and the winding core to rotate. Therefore, a continuous web of paper, plastic film, or the like can be slit into a plurality of strips, which can be guided to each pair of winding arms and wound around the winding core.

However, in this case, it is necessary to provide a cylinder and a contactor for each winding arm and rotate them by a drive motor. Therefore, there is a problem that the structure is complicated and the cost is high.

[0004]

SUMMARY OF THE INVENTION The present invention has been made for the purpose of making a slitter winding device simple in structure and low in cost.

[0005]

According to the present invention, the slitter winding device is provided with two feed screws. The lead screws extend parallel to each other, and their screw directions are the same. further,
A plurality of pairs of take-up arms are arranged along the feed screw, and in each pair of take-up arms, a nut is provided on one of the take-up arms and screwed on the one of the take-up screws. Further, in each pair of winding arms, a nut is provided on the other winding arm and screwed onto the other feed screw, and each feed screw is driven by the drive mechanism so that each feed screw rotates in the opposite direction. Therefore, the take-up arms are fed by the respective feed screws, and the one and the other take-up arms move in mutually opposite directions, so that the take-up core can be chucked between the take-up arms.

It is also possible to use two feed screws whose screw directions are opposite to each other and rotate them in the same direction.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below.

In FIG. 1, this is a slitter winding device. In this embodiment, the winding device W having the same configuration,
W'is provided on both front and rear sides of the slitter, and continuous webs of paper, plastic film, etc. are slit into multiple lines,
It is distributed to the front and rear winding devices W and W '.

The winding device W on the front side has two feed screws 1a,
With 1b. The feed screws 1a and 1b are ball screws, extend parallel to each other, and are rotatably supported. The screw directions are the right-hand screw direction and the left-hand screw direction, respectively, and are the same as each other. Further, the winding device W on the front side has a plurality of pairs of winding arms 2L and 2R.
L and 2R are arranged along the feed screws 1a and 1b.

Further, in each pair of winding arms 2L and 2R, as shown in FIG. 2, a nut 3La is provided on one winding arm 2L, screwed with one feed screw 1a, and a nut 3Rb is attached to the other. Provided on the winding arm 2R,
It is screwed onto the other feed screw 1b. In this embodiment, half nuts are used as the nuts 3La and 3Rb, the electromagnetic devices 4L and 4R are provided on the one and the other take-up arms 2L and 2R, and the electromagnetic devices 4L and 4R are attached to the nuts 3La and 3Rb. The nuts 3La, 3
Rb can be detached from each of the feed screws 1a and 1b.

Further, in this embodiment, the nuts 3La,
In addition to 3Rb, in each pair of winding arms 2L and 2R,
The nut 3Lb is provided on one winding arm 2L, and the nut 3Ra is provided on the other winding arm 2R. The nuts 3Lb and 3Ra are also half nuts. Therefore, the electromagnetic devices 4L and 4R can be acted on the nuts 3Lb and 3Ra, the nut 3Lb can be screwed to the other feed screw 1b, and the nut 3Ra can be screwed to the one feed screw 1a. Attach nuts 3Lb and 3Ra to each feed screw 1
It can also be detached from a and 1b.

The winding arms 2L and 2R have a contact 5 and a drive motor 6. The contacts 5 are for pressing against both ends of the winding core. The drive motor 6 is for rotating the contactor 5 and the winding core, and is drivingly connected to the contactor 5.

Further, a single servomotor 7 is used as a drive mechanism for the feed screws 1a and 1b, and one feed screw 1a is transmission-coupled to the servomotor 7. Regarding the other feed screw 1b, the servo motor 7
And the feed screw 1b are transmission-coupled. Therefore, the feed screws 1a and 1b can be rotated by the servo motor 7, the rotation direction can be changed by the gear 8, and the feed screws 1a and 1b can be rotated in mutually opposite directions.

The same applies to the winding device W'on the rear side.

Further, the control device 9 includes electromagnetic devices 4L and 4R.
And connected to the servomotor 7. The control device 9 is for controlling the electromagnetic devices 4L and 4R and the servomotor 7.

Therefore, in this device, the control device 9 causes the electromagnetic devices 4L and 4R to act, and the nut 3L
The nuts 3Lb and 3Ra are disengaged from the feed screws 1a and 1b by screwing a and 3Rb onto the feed screws 1a and 1b. After that, when the servomotor 7 is driven by the control device 9 to rotate the feed screws 1a and 1b, one feed screw 1a acts on the nut 3La and the winding arm 2L,
The other feed screw 1b is the nut 3Rb and the winding arm 2.
By acting on R, the winding arms 2L and 2R are fed and moved by the feed screws 1a and 1b. Further, the feed screws 1a and 1b of this device have the same screw directions, and the rotation direction is changed by the gear 8 so that the feed screws 1a and 1b rotate in opposite directions. Therefore, in each pair of winding arms 2L and 2R, the one and the other winding arms 2L and 2R move in opposite directions.

Therefore, each pair of winding arms 2L, 2R
In, the winding core can be arranged between the two winding arms 2L and 2R, and then the two winding arms 2L and 2R can be moved toward each other. Therefore, the contacts 5 of the winding arms 2L and 2R are pressed against both ends of the winding core,
This allows the winding core to be chucked. After that, the contact 5 and the winding core can be driven and rotated by the drive motor 6, and a continuous web of paper, plastic film, or the like is slit into a plurality of strips, and this is wound on each pair of winding arms 2L and 2R. It can be guided and wound on a winding core.

Further, after the winding of the continuous web is completed, the servomotor 7 and the feed screws 1a and 1b are controlled by the controller 9.
Is reversed, the winding arms 2L and 2R in each pair move in a direction in which the winding arms 2L and 2R are separated from each other. Therefore, the contact 5 of the winding arms 2L and 2R separates from the winding core, and the winding core is released from the winding arms 2L and 2R. As a result, the rolled product can be taken out.

After the winding of the continuous web is completed, the controller 9 releases the winding core from the winding arms 2L and 2R.
The electromagnetic devices 4L and 4R are actuated by the nut 3L
It is also possible to separate a and 3Rb from the feed screws 1a and 1b and screw the nuts 3Lb and 3Ra to the feed screws 1a and 1b. After that, feed screw 1 by servo motor 7.
When a and 1b are rotated, one feed screw 1a acts on the nut 3Ra and the take-up arm 2R, and the other feed screw 1b acts on the nut 3Lb and the take-up arm 2L and is wound by the respective feed screws 1a and 1b. The taking arms 2L and 2R are sent and move. Therefore, even if the servo motor 7 is not rotated in the reverse direction, the two winding arms 2L and 2R are moved in directions away from each other, the winding core is released from the winding arms 2L and 2R, and thereby the wound product can be taken out. it can.

Therefore, in the case of this device, the feed screw 1
It is possible to move the winding arms 2L and 2R by a and 1b, thereby chucking the winding cores. As in the conventional device, each winding arm is provided with a cylinder, and the winding cores are provided by the cylinders. You don't have to chuck. Therefore, the structure is simple and the cost is low.

In each pair of winding arms 2L, 2R, the nuts 3La, 3Lb, 3Ra, 3Rb of the winding arms 2L, 2R can be selectively screwed to move the one and the other winding arms 2L, 2R in the same direction. . It is also possible to move only one winding arm and stop the other winding arm. Therefore, when appropriately adjusting the positions and intervals of the winding arms 2L and 2R in accordance with the change of the slit width of the continuous web, an NC control type controller is used as the controller 9 and the winding arms 2L and 2L are controlled by the NC control.
The position and spacing of R can also be adjusted.

In this embodiment, two feed screws 1a and 1b whose screw directions are the same are rotated in opposite directions, but this is not always necessary. Even if two feed screws 1a and 1b whose screw directions are opposite to each other are used and they are rotated in the same direction, one and the other of the pair of winding arms 2L and 2R are wound. 2L and 2R can be moved in opposite directions, and the same effect can be obtained.
Two servomotors are used as a drive mechanism for the feed screws 1a and 1b, and the feed screws 1a and 1b are individually transmission-coupled to the servomotors, and the feed screws 1a and 1b are individually rotated by the servomotors. You may do it.

[0023]

As described above, according to the present invention, the winding arms 2L and 2R are formed by the feed screws 1a and 1b.
Can be moved to chuck the take-up core, and it is not necessary to provide a cylinder for each take-up arm and chuck the take-up core by the cylinder as in the conventional device. Therefore, the structure is simple, the cost is low, and the intended purpose can be achieved.

[Brief description of drawings]

FIG. 1 is an explanatory view showing an embodiment of the present invention.

FIG. 2 is an enlarged view of the winding arm of FIG.

[Explanation of symbols]

 W, W'Winding device 1a, 1b Feed screw 2L, 2R Winding arm 3La, 3Lb, 3Ra, 3Rb Nut 7 Servo motor

Claims (2)

[Claims] 1. A pair of winding screws extending in parallel with each other and having screw directions that are the same as each other, a plurality of pairs of winding arms arranged along the winding screws, and each pair of winding arms. A nut provided on one winding arm and screwed to one feed screw, and a nut provided on the other winding arm in each pair of winding arms and screwed to the other feed screw, And a drive mechanism for rotating each of the feed screws in mutually opposite directions, feeding the winding arm by each of the feed screws, moving the one and the other winding arms in mutually opposite directions,
A winding device for a slitter, wherein a winding core is chucked between both winding arms. 2. A pair of winding screws extending in parallel with each other and having screw directions opposite to each other, a plurality of pairs of winding arms arranged along the feeding screws, and each pair of winding arms. A nut provided on one winding arm and screwed to one feed screw, and a nut provided on the other winding arm in each pair of winding arms and screwed to the other feed screw, And a drive mechanism for rotating each of the feed screws in the same direction, feeding the winding arm by each of the feed screws, moving the one and the other winding arm in mutually opposite directions,
A winding device for a slitter, wherein a winding core is chucked between both winding arms.