JP2001182737A - Roll storage method and its storage apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a method and an apparatus for long-term storage of rolls, in which even for a roll of large weight load, deflection due to self-weight is prevented from occurring, a service life prolongation of an outer skin for the roll to be machined at the outer skin is realized (including a curved roll), and detection of irregularities is facilitated. SOLUTION: In the roll storage method, where the roll of high weight load is stored with both ends being supported horizontally by bearings, the roll is kept in continuous rotation during the long-term storage under such low speed capable of preventing the deflection to occur due to own weight, and, if the roll is a cylinder in which a piston is included, the roll is kept in continuous rotation with the low speed during the long-term storage under the conditions that a oil film is formed between the roller inner surface and the piston sliding surface.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and apparatus for storing rolls having a large weight, and more particularly to a method and apparatus for storing various rolls (including cylinders) used in papermaking machinery. The present invention relates to a roll storage method for storing a spare roll while rotating the roll, and a storage device for the same.

[0002]

2. Description of the Related Art FIG. 4 shows a spare roll storage device used in a conventional papermaking machine. Numeral 1 is a cylinder type rotary roll stored as a backup roll, and both end shafts thereof are supported at both ends by bearings 2 and 3.
It is fixed on top. Such a cylinder type rotating roll 1
The bearings 2 and 3 which support the bearings are provided with bearings therein to rotatably support the rotary roll 1 and can be installed on a machine together with the bearings 2 and 3.

Therefore, the conventional storage device for the cylinder type rotary roll 1 only supports the bearings located at both ends of the roll 1 on the stock 4. Since the bending due to its own weight is generated, the rotation is prevented by storing the rotating roll 1 once a month while rotating it by a quarter of a rotation by a human force.

[0004]

SUMMARY OF THE INVENTION In view of the above-mentioned problems, the present invention can prevent the occurrence of flexure and rust due to its own weight even for a roll having a large weight burden, and a roll for processing a jacket (including a curved roll). It is an object of the present invention to provide a roll storage method and a storage device that can extend the life of a jacket and can easily find a defect.

[0005]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention provides a roll storage method for storing a roll having a large weight burden at both ends in the horizontal direction while supporting both ends by bearings 2 and 3. The roll is continuously rotated slowly and continuously during long-term storage at a slow speed that can prevent the occurrence of bending due to the above-mentioned problem.

A third aspect of the present invention relates to an apparatus for effectively implementing the present invention, and stores rolls having a large weight burden while being supported by bearings 2 and 3 at both ends in the horizontal direction. In the roll rotation type storage device, a slow rotation mechanism is connected to the shaft side of the roll, and the roll is continuously and slowly rotated through the rotation mechanism during long-term storage.

[0007] According to the invention, even if the roll has a large weight burden, it can be prevented from being bent by its own weight by rotating slowly and continuously during long-term storage. In addition, the outer processing roll, including the curved roll, the front or part of the surface of which is coated with resin, rubber, or the like, can extend the life of the outer coating by the storage operation, and can visually check the surface during storage to obtain the roll surface. It is easy to find various inconveniences, and it is possible to prevent accidents during reuse.

According to a second aspect of the present invention, in the roll storage method, wherein the roll is a cylinder containing a piston, the roll is stored for a long time in a state in which an oil film is formed on the inner surface of the cylinder and the sliding surface of the piston. It is characterized by continuous and slow rotation during continuous operation.

According to this invention, a roll of a type in which a piston acts on the inner surface of a cylinder-type roll via an oil film and the oil is used during long-term storage and the oil is applied to the front surface of the roll by slowly rotating the oil. Since there is no rust due to running out of oil and there is no bending due to service, it can be reused immediately when needed.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail with reference to an embodiment shown in the drawings. However, unless otherwise specified, the materials, shapes, relative arrangements, and the like of the components described in this embodiment are not intended to limit the scope of the invention, but are merely illustrative examples. FIG. 1 shows an apparatus for rotating a preliminary roll according to an embodiment of the present invention. FIG. 1 discloses a front view, and a left side view and a view A viewed from the right side. Reference numeral 1 denotes a cylinder type rotary roll 1 stored as a backup roll, and both end shaft portions thereof are supported at both ends by bearings 2 and 3, and the bearings 2 and 3 are mounted on a stock 4.
It is fixed on top.

The bearings 2 and 3 for supporting the cylinder type rotary roll 1 have bearings incorporated therein to rotatably support the rotary roll 1, and can be installed together with the bearings 2 and 3 on a machine. Have been. One end of the shaft of the cylinder type rotary roll 1 is protruded outside the bearing 3, and a sprocket 5 for rotation driving is attached to the protruded shaft.
(Or pulley). Reference numeral 6 denotes a cylinder-type roll rotation drive device whose drive source is composed of electricity, air pressure, hydraulic pressure, and the like.
The stock 4 is fixed on the ground on which it is installed.

The sprocket (or pulley) 5
A power transmission member 7 composed of a chain, a belt, a gear, and the like is interposed between the rotary drive device 6 and the rotary drive device 6, and the roll 1 is continuously maintained during long-term storage at a slow speed enough to prevent the occurrence of bending due to its own weight. It is configured to be able to rotate slowly and continuously.

According to this embodiment, since the cylinder type rotary roll 1 is used on a machine such as a paper making machine while being supported on both sides of the bearings 2 and 3, the spare roll 1 can be used at any time. It is stored on a stock 4 with the bearings 2 and 3 assembled together with the roll 1 in the same manner as the roll in use in the state.

If the storage period is long (3 months to 2 years), the cylinder type roll 1 is bent by its own weight. If it is assembled on a machine in a state where it is bent, vibration and resonance occur on the machine due to its rotation, and it cannot be used. Therefore, in such a case, the cylinder type roll 1 is slowly and continuously rotated via the rotary drive device 6, the power transmission member 7, the sprocket 5, and the like even during long-term storage, thereby preventing the deflection from being caused by its own weight. It can be assembled on a machine without re-bending at the time of re-use, and it can be used immediately.

As shown in FIG. 2, a piston 12 acts on the inner surface of the cylinder-type roll 1 via an oil film, so that the surface of the cylinder-type roll 1 faces the load of the mating roll 1 as shown in FIG. There is also a cylinder-type roll 1 that is used after being bent, and such a roll 1 is stored in a state where the piston 12 and the like are incorporated in the same manner as when using a machine so that the spare roll 1 can be reused at any time. In the case of such a roll 1, if the storage period is as long as about one month to two years, the oil above the inner surface of the cylinder may run out. In this case, since the inner surface of the cylinder and the contact surface between the piston 12 become galling and become unusable, an oil injection or other oil supply unit 11 is provided on the inner peripheral surface of the cylinder located on the upstream side in the roll rotation direction, or When the supply unit 11 such as an existing oil injection unit is present, the rotation direction of the rotary drive unit 6 is set so that the injection unit is located on the upstream side in the rotation direction, and the cylinder is rotated slowly and continuously. The oil 13 acts on the front surface of the inner surface of the roll 1 by putting the used oil and rotating slowly during long-term storage in the roll 1 of the type in which the piston 12 acts on the inner surface of the mold roll 1 via an oil film. Since there is no rust due to running out of oil and the occurrence of bending due to its own weight can be prevented, it can be reused immediately when needed.

As shown in FIG. 3, the cylinder type rotary roll 1 of the papermaking machine includes a roll 1 in which a surface of a curved roll 1 is processed by a jacket 1a (rubber or synthetic resin). If the product is stored without rotating for a long period of time, the jacket 1a will be hardened.
May become useless. Even in such an apparatus, the jacket processing roll 1 (including the curved roll) is rotated slowly even in long-term storage, so that the jacket 1 is rotated.
It is possible to prevent the hardening of the part a and extend the life of the jacket, and if a defect of the jacket can be found while rotating slowly during long-term storage, the part is collected during storage. This makes it possible to prevent accidents during reuse.

[0017]

As described above, according to the present invention, even if the roll has a large weight, the bending of the jacket (including the curved roll) can be extended and the life of the jacket can be extended and the trouble can be prevented. It is possible to obtain a roll storage method and its device that are easy to find, and in particular, according to the second aspect of the invention, it is possible to prevent galling and rust between the inner surface of the roll and the piston.

[Brief description of the drawings]

FIG. 1 shows a storage device for a spare roll according to an embodiment of the present invention, and discloses a front view, a left side view, and a view A viewed from a right side.

FIG. 2 is a cross-sectional view for applying the present invention to a cylinder roll in which a piston is included.

FIG. 3 shows a surface-sheathed curved roll applied to the present invention.

FIG. 4 shows a roll storage device according to the prior art.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Roll 1a Jacket 2, 3 Bearing 4 Rootstock 5 Rotation drive sprocket (or pulley) 6 Cylinder roll rotation drive device 7 Power transmission member 12 Piston

Claims (3)

[Claims] 1. A roll storage method for storing rolls having a large weight burden at both ends in the horizontal direction while supporting both ends by bearings, wherein the rolls are kept at a slow speed sufficient to prevent the occurrence of bending due to their own weight. A roll storage method characterized by continuously rotating slowly and continuously during storage. 2. The roll storage method in which the roll is a cylinder in which a piston is included, wherein the roll is continuously and slowly stored for a long period of time with an oil film formed on the inner surface of the cylinder and a rubbing surface of the piston. 2. The roll storage method according to claim 1, wherein the roll is continuously rotated. 3. A roll rotation type storage device for storing a roll having a large weight burden at both ends in a horizontal direction while supporting both ends by bearings, wherein a slow rotation mechanism is connected to a shaft side of the roll, and the rotation mechanism is provided. A roll storage device, wherein the roll is continuously and slowly rotated continuously for a long period of time via a storage device.