JP2578231Y2 - Power transmission mechanism in winding device - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a power transmission mechanism in a winding device used for producing a roll sheet material such as toilet paper.

[0002]

2. Description of the Related Art Roll sheet materials such as toilet paper are used to wind a paper fed from a large-diameter base paper roll into a core by a predetermined length (for example, 60 m) while performing perforation processing or the like. Then, when a predetermined length of paper is wound on a core, the paper is cut once, the rolled sheet material on which the paper has been wound is discharged out of the system, and the cut base paper end is used as a starting end, and then again for a predetermined length. It starts to wind the sheet material on the core.

[0003] Therefore, a roll manufacturing apparatus as described above is composed of a winding device, a cutting device, and a discharging device. First, the winding device is operated to wind about 60 m of paper on a core, and then, the core is wound. At the same time as the take-off device stops, the cutting device and subsequently the discharge device are activated. Then, when the rolled sheet material that has been cut and wound is discharged out of the processing system of the device, the cutting device and the discharging device are stopped, and at the same time, the winding device is operated again.

The winding device in the above-described roll manufacturing apparatus is configured by connecting a drive source such as a motor and a winding roller and the like via a clutch mechanism. When the clutch mechanism is turned on, the paper is wound. When the clutch mechanism is off, the winding stops. Incidentally, when the clutch mechanism is turned off, the cutting device and the discharging device described above are mechanically and electrically configured to operate, and the speeding-up is promoted at present, and about 6 to 7 roll sheet materials are produced per minute. It has become possible.

[0005]

However, with the above-described winding device, when producing about six roll sheet materials per minute, the clutch mechanism is turned on and off 12 times per minute. The torque in the winding device generated from these operations exerts a remarkable load on the motor, reduces the rotational accuracy of the drive source and shortens the life of the motor. They need to be replaced frequently. Further, it is difficult to operate the drive and stop more than 10 times per minute with high accuracy.

[0006]

SUMMARY OF THE INVENTION The present invention has been proposed in view of the above, and has a first rotating shaft provided with a flywheel and forcibly rotated by a motor, and a second rotating shaft provided with a clutch mechanism. And a third rotating shaft provided with a driving roller for the winding device. The first rotating shaft and the second rotating shaft are connected by a first rotation transmitting member, and the second rotating shaft is connected to the second rotating shaft. A power transmission mechanism in which the rotation shaft and the third rotation shaft are connected by a second rotation transmission member, and the rotation of the first rotation shaft is transmitted to the third rotation shaft while the clutch mechanism of the second rotation shaft is on. Wherein the first rotation transmitting member is brought into contact with a buffer roller for transmitting the torque of the driving roller to a motor at the moment when the clutch mechanism is turned on from off. And

[0007]

According to the present invention, in the winding device, since the torque acting on the driving roller is buffered and transmitted to the motor, not only the effect of the torque on the motor can be significantly reduced, but also the life of the motor can be reduced. Can be extended, and maintenance of the apparatus can be facilitated.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below in detail with reference to the drawings. The driving motor 1 and the first motor in the present invention
The rotating shaft 2 is connected via a first pulley 3, a rotation transmitting member 4, and a second pulley 5, and the first rotating shaft 2 can be forcibly rotated at high speed by driving the motor 1. The second pulley 5, the flywheel 6, and the third pulley 7 are attached to the first rotary shaft 2 that rotates together with the motor 1, and one of the endless first rotation transmission members 8 is attached to the third pulley 7. The ends are hung. In the middle of the first rotation transmitting member 8, a buffer roller 9 elastically contacts from above, and the other end is hung on a fourth pulley 10. The buffer roller 9
Is configured such that the contact pressure to the first rotation transmitting member 8 can be changed by the cylinder 11 connected to a hydraulic or pneumatic drive source (not shown).

The fourth pulley 10 includes a clutch mechanism 12
Is mounted on the second rotating shaft 15 provided with the fifth pulley 13 at the other end, and when the first rotating shaft 2 rotates, the second rotating shaft 14 is also rotated by the first rotation transmitting member 8, and the clutch When the mechanism 12 is on, the fifth pulley 13 rotates, but when the clutch mechanism 12 is off, the fifth pulley 13 does not rotate. Further, one end of an endless second rotation transmitting member 15 is bridged over the fifth pulley 13, and a sixth pulley 16 is bridged over the other end of the second rotation transmitting member 15. The above-described sixth pulley 16 is integrally attached to a third rotating shaft 18 having a driving roller 17 of a winding device in the middle thereof. A source mechanism (not shown) is in direct or indirect communication.

The buffer roller 9 elastically contacts the first rotation transmitting member 8 to adjust the tension. And
The buffering roller 9 is rotatably held at one end of a tilting rod 19 pivotally supported at the middle of the length and rotatably supported, and the tip of the piston rod 11 ′ of the cylinder 11 is connected to the tilting rod described above. 19 is pivotally connected to the other end. Therefore, when the cylinder 11 is expanded and contracted, the tilting rod 19 tilts, and the pressure at which the buffering roller 9 pivotally attached to the tip of the tilting rod 19 contacts the first rotation transmission member 8 changes. 8 can be adjusted.

The power transmission mechanism of the present invention has the above-described structure. When the motor 1 is driven, the first rotation shaft 2 is rotated by the rotation transmission member 4, and the second rotation shaft 1 is rotated by the first rotation transmission member 8.
4 rotates. When the clutch mechanism 12 is in the ON state, the third rotating shaft 18 is rotated by the fifth pulley 13, and the driving roller 17 attached to the third rotating shaft 18 rotates to drive the winding source of the winding device. The mechanism can be activated to wind the paper around the core. On the other hand, if the clutch mechanism 12 is in the off state, the rotation of the fourth pulley 10 is not transmitted to the fifth pulley 13, so that the rotation of the driving roller 17 stops. In this state, the paper is cut by a cutting device (not shown), and the rolled sheet material is discharged out of the system by a discharge device (not shown).

Therefore, when the clutch mechanism 12 is turned on and off, the driving roller 17 is controlled to rotate to produce a rolled sheet material wound with paper. While the device repeats the operation / stop by turning on / off the clutch mechanism 12, the motor 1, the first rotating shaft 2, the first rotation transmitting member 8
Are continuously rotating regardless of the on / off state of the clutch mechanism 12. For this reason, a strong torque acting on the driving roller 17 via the first rotation transmission member 8, the first rotation shaft 2 and the rotation transmission member 4 due to the on / off state change of the clutch mechanism 12. However, the above-described torque is applied to the first by the buffer roller 9.
Since the tension of the rotation transmitting member 8 is controlled, it is buffered and can be extremely reduced.

[0013]

In summary, according to the power transmission mechanism of the present invention, when it is used as a drive source of a winding device for producing several roll-shaped sheet materials at a high speed per minute, the clutch mechanism turns on and off. Even if it is frequently repeated, the torque of the winding device is remarkably reduced by the shock absorbing roller, so that the torque acting on the motor is extremely reduced, and the life of the motor can be maintained for a long time. Therefore, it is not necessary to replace the motor as frequently as in the conventional case, and the maintainability of the apparatus can be improved.

Further, the power transmission mechanism of the present invention not only can reliably provide a buffering action even if the buffer roller is elastically brought into contact with the rotation transmitting material, but also can use special equipment and devices. Since it does not require a member and can be applied to a conventional device as it is, it is extremely practical.

[Brief description of the drawings]

FIG. 1 is a schematic plan view showing an embodiment of the present invention.

FIG. 2 is a schematic side view of the riding.

FIG. 3 is a schematic perspective view of a main part.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Motor 2 1st rotation shaft 6 Flywheel 8 1st rotation transmission material 9 Buffer roller 11 Cylinder 12 Clutch mechanism 14 2nd rotation shaft 15 2nd rotation transmission material 18 3rd rotation shaft

Claims (1)

(57) [Scope of request for utility model registration] 1. A first rotating shaft provided with a flywheel and forcibly rotated by a motor, a second rotating shaft provided with a clutch mechanism, and a third rotating shaft provided with a driving roller of a winding device. And a first rotation shaft and a second rotation shaft are connected by a first rotation transmission member,
The second rotation shaft and the third rotation shaft are connected by a second rotation transmission member, and the rotation of the first rotation shaft is transmitted to the third rotation shaft while the clutch mechanism of the second rotation shaft is on. A power transmission mechanism, wherein the first rotation transmission member is brought into contact with a buffer roller that buffers and transmits the torque of the drive roller to a motor at the moment when the clutch mechanism is turned on from off. A power transmission mechanism in the winding device.