JP2019099305A - Roller device - Google Patents

Abstract

To provide a roller device capable of suppressing generation of wear powder while securing cushioning properties.SOLUTION: A roller device 100 includes: a shaft 1 configured to be rotatable; a metal outer cylinder member 2 provided on the outer periphery of the shaft 1 and in contact with a film; and an intermediate member 3 disposed between the shaft 1 and the outer cylinder member 2 and having a cushioning property. The intermediate member 3 is configured to be able to adjust the cushioning property.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a roller device.

  BACKGROUND Conventionally, a roller device provided in a belt-shaped film transport path is known (see, for example, Patent Document 1). The roller device of Patent Document 1 includes a cylindrical core member and a rubber outer layer coated on the outer periphery of the core member, and is configured to have a cushioning property.

Unexamined-Japanese-Patent No. 2000-203754

  However, in the above-described conventional roller device, there is a possibility that the abrasion powder of rubber is generated by the abrasion of the outer layer made of rubber. When abrasion powder is generated, the abrasion powder may adversely affect the film due to the adhesion of the abrasion powder to the film.

  The present invention has been made to solve the above-described problems, and it is an object of the present invention to provide a roller device capable of suppressing generation of abrasion powder while securing cushioning properties. It is.

  The roller device according to the present invention comprises a rotatable shaft, and an outer cylindrical member made of metal or hard resin provided on the outer periphery of the shaft and brought into contact with the film, and between the shaft and the outer cylindrical member And an intermediate member having a cushioning property. The intermediate member is configured to be able to adjust the cushioning property.

  By this configuration, the center of the outer cylinder member can be eccentric with respect to the rotation center of the shaft, so that cushioning can be ensured. Further, since the metal or hard resin outer cylindrical member is in contact with the film and the cushioning intermediate member is not in contact with the film, generation of wear powder can be suppressed.

  In the above roller device, preferably, the intermediate member is a cylindrical rubber material, is interposed between the outer peripheral surface of the shaft and the inner peripheral surface of the outer cylindrical member, and has a spiral groove.

  In the above roller device, preferably, the intermediate member has a rubber tube spirally wound between the outer peripheral surface of the shaft and the inner peripheral surface of the outer cylindrical member.

  According to the roller device of the present invention, generation of wear powder can be suppressed while securing cushioning properties.

It is a sectional view showing a schematic structure of a roller device by a 1st embodiment of the present invention. It is sectional drawing which showed schematic structure of the roller apparatus by 2nd Embodiment of this invention.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

First Embodiment
First, a roller device 100 according to a first embodiment of the present invention will be described with reference to FIG.

  The roller device 100 is, for example, a touch roller device configured to press a band-shaped film wound around a winding shaft (not shown) toward the winding shaft. The film is, for example, a high-performance film such as a lithium ion secondary battery separator. As shown in FIG. 1, the roller device 100 includes a shaft 1 configured to be rotatable, an outer cylindrical member 2 that is in contact with a film, and an intermediate member 3 provided between the shaft 1 and the outer cylindrical member 2. And have.

  The shaft 1 is made of metal such as SS material or SUS material, for example, and is configured to press the outer cylindrical member 2 against the film wound around the winding shaft. The shaft 1 is configured to be rotated by a film wound on a winding shaft. The shaft 1 has a main body portion 11 extending in the axial direction (X direction), and a pair of shaft portions 12 formed at both axial end portions of the main body portion 11. The shaft 1 is formed with an air passage 14 through which air can flow, and the air passage 14 is connected to an air supply source (not shown).

  The main body portion 11 is formed in a hollow shape as well as the outer shape is formed in a cylindrical shape. The outer cylinder member 2 is provided on the outer periphery of the main body 11 via the intermediate member 3. The intermediate member 3 can not rotate relative to the main body 11, and the outer cylindrical member 2 can not rotate relative to the intermediate member 3. The shaft portion 12 is formed to project outward in the axial direction from the main body portion 11, and is rotatably supported by a bearing (not shown).

  The outer cylindrical member 2 is made of metal such as SS material or SUS material, for example, and is configured not to be elastically deformed. The outer cylindrical member 2 is formed in a cylindrical shape and is formed to extend in the axial direction so as to correspond to the main body portion 11. The outer peripheral surface 22 of the outer cylindrical member 2 is in contact with a winding roll formed by winding the film around the winding shaft. The outer peripheral surface 22 of the outer cylindrical member 2 is subjected to chromium plating and polishing finish.

  The intermediate member 3 is, for example, a rubber material such as EPDM (ethylene propylene diene rubber) or CR (chloroprene rubber), and is formed in a cylindrical shape. The intermediate member 3 is interposed between the outer peripheral surface 13 of the main body 11 and the inner peripheral surface 21 of the outer cylindrical member 2. Specifically, the inner peripheral surface 3 a of the intermediate member 3 is bonded to the outer peripheral surface 13 of the main body 11, and the outer peripheral surface 3 b of the intermediate member 3 is bonded to the inner peripheral surface 21 of the outer cylindrical member 2.

  The intermediate member 3 is elastically deformable and has a cushioning property. A spiral groove 31 is formed on the outer peripheral surface 3 b of the intermediate member 3, and the groove 31 is in communication with the air passage 14 of the shaft 1 via the communication hole 32. The communication hole 32 is formed to extend in the radial direction (direction orthogonal to the axial direction) so as to penetrate from the bottom of the groove 31 to the inner peripheral surface 3 a side.

  The intermediate member 3 is configured to be able to adjust the cushioning property by the pressure of the air supplied from the air supply source to the groove 31 through the air passage 14 and the communication hole 32. That is, the hardness of the elastically deformable intermediate member 3 can be adjusted by air. The shaft 1 and the intermediate member 3 are adhered to each other, and the intermediate member 3 and the outer cylindrical member 2 are adhered to each other, so that the air supplied to the groove 31 does not leak.

  The center of the outer cylindrical member 2 is disposed to coincide with the rotation center of the shaft 1 and is configured to be eccentric to the rotation center of the shaft 1. That is, since the intermediate member 3 has a cushioning property, the outer cylinder member 2 can move in the radial direction with respect to the shaft 1. For example, when the pressure of the air supplied to the groove 31 is increased, the hardness of the intermediate member 3 is increased, and the outer cylindrical member 2 becomes difficult to move relative to the shaft 1. On the other hand, when the pressure of the air supplied to the groove 31 is lowered, the hardness of the intermediate member 3 is lowered, and the outer cylindrical member 2 is easily moved relative to the shaft 1.

-Effect-
In the first embodiment, as described above, by providing the intermediate member 3 having a cushioning property between the shaft 1 and the metal outer cylindrical member 2, the center of the outer cylindrical member 2 is the rotation center of the shaft 1. On the other hand, the cushioning property can be secured since the eccentricity can be achieved. In addition, since the metal outer cylindrical member 2 is in contact with the film and the cushioning intermediate member 3 is not in contact with the film, generation of wear powder can be suppressed. Therefore, generation of wear powder can be suppressed while securing cushioning properties. In addition, by ensuring the cushioning property, it is possible to suppress the occurrence of wrinkles in the winding roll formed by winding the film around the winding shaft. Furthermore, the adjustable cushioning properties can make the cushioning properties suitable for the application.

  In the first embodiment, the cushioning property can be easily adjusted by forming the spiral groove 31 to which air is supplied in the intermediate member 3.

Second Embodiment
Next, a roller device 100a according to a second embodiment of the present invention will be described with reference to FIG. The same parts as those of the roller device 100 according to the first embodiment are denoted by the same reference numerals, and redundant description will be omitted.

  The roller device 100a is, for example, a touch roller device configured to press a band-shaped film wound around a winding shaft (not shown) toward the winding shaft. As shown in FIG. 2, this roller device 100 a is an intermediate member provided between the shaft 1 a configured to be rotatable, the outer cylindrical member 2 that is in contact with the film, and the shaft 1 a and the outer cylindrical member 2. It is equipped with four.

  Insertion holes 15 and 16 through which a rubber tube 41 described later is inserted are formed in the shaft 1a. The insertion hole 15 is formed to extend in the axial direction in the shaft portion 12a, and is configured to connect the internal space S1 of the hollow main body portion 11a with the outside. The insertion hole 16 is formed to extend in the radial direction on the outer peripheral surface 13a, and is configured to connect the internal space S1 with a space S2 described later. The other configuration of the shaft 1a is substantially the same as that of the shaft 1 described above.

  The intermediate member 4 includes a rubber tube 41 and a spacer 42. The spacer 42 is provided to form a space S <b> 2 in which the rubber tube 41 is disposed between the main body portion 11 a and the outer cylinder member 2. The spacer 42 is, for example, a rubber material such as EPDM or CR, and is formed in a cylindrical shape. The spacers 42 are provided at both axial end portions of the main body portion 11 a, and are interposed between the outer peripheral surface 13 a of the main body portion 11 a and the inner peripheral surface 21 of the outer cylindrical member 2. The inner peripheral surface of the spacer 42 is bonded to the outer peripheral surface 13a of the main body portion 11a, and the spacer 42 can not rotate relative to the main body portion 11a. Further, the inner peripheral surface 21 of the outer cylindrical member 2 is bonded to the outer peripheral surface of the spacer 42, and the outer cylindrical member 2 can not rotate relative to the spacer 42.

  The rubber tube 41 is configured to be expandable and contractible in diameter, and is passed through the insertion hole 15, the internal space S1 and the insertion hole 16 to the space S2. At one end of the rubber tube 41, a plug member 41a for closing the rubber tube 41 is provided. The other end of the rubber tube 41 is connected to an air supply source (not shown). The central portion 41 b of the rubber tube 41 is spirally wound between the outer peripheral surface 13 a of the main body portion 11 a and the inner peripheral surface 21 of the outer cylindrical member 2. The inside of the spiral rubber tube 41 is in contact with the outer peripheral surface 13 a of the main body 11 a, and the outside of the spiral rubber tube 41 is in contact with the inner peripheral surface 21 of the outer cylinder member 2. Further, both end portions 41c of the rubber tube 41 are disposed in the insertion hole 15 of the shaft 1a, and the rubber tube 41 is drawn out from the shaft 1a.

  Therefore, the intermediate member 4 is elastically deformable and has a cushioning property. The intermediate member 4 is configured to be able to adjust the cushioning property by the pressure of the air supplied from the air supply source to the rubber tube 41. That is, the hardness of the elastically deformable intermediate member 4 can be adjusted by air.

  And while the center of the outer cylinder member 2 is arrange | positioned so as to correspond with the rotation center of the shaft 1a, it is comprised so that eccentricity is possible with respect to the rotation center of the shaft 1a. That is, since the intermediate member 4 has a cushioning property, the outer cylinder member 2 can move in the radial direction with respect to the shaft 1a. For example, when the pressure of the air supplied to the rubber tube 41 is increased, the hardness of the intermediate member 4 is increased, and the outer cylindrical member 2 becomes difficult to move relative to the shaft 1a. On the other hand, when the pressure of the air supplied to the rubber tube 41 is lowered, the hardness of the intermediate member 4 is lowered and the outer cylindrical member 2 is easily moved relative to the shaft 1a.

-Effect-
In the second embodiment, as described above, the cushioning property can be easily adjusted by spirally winding the rubber tube 41 supplied with air between the shaft 1 a and the outer cylindrical member 2.

  The remaining effects of the second embodiment are similar to those of the first embodiment.

(Other embodiments)
The embodiment disclosed this time is an example in all respects, and is not a basis for a limited interpretation. Therefore, the technical scope of the present invention is not interpreted only by the above-mentioned embodiment, and is defined based on the statement of a claim. Further, the technical scope of the present invention includes all modifications within the meaning and scope equivalent to the claims.

  For example, in the first and second embodiments, the roller devices 100 and 100a are touch roller devices that press the strip-shaped film wound around the winding shaft toward the winding shaft, but the present invention is limited thereto. Alternatively, the roller device may be a guide roller device that guides the strip-shaped film in the transport path.

  In the first and second embodiments, the outer cylinder member 2 is made of metal. However, the present invention is not limited to this. The outer cylinder member may be made of hard resin which does not elastically deform. The hard resin has, for example, a hardness not to be worn by the film.

DESCRIPTION OF SYMBOLS 1, 1a Shaft 2 Outer cylinder member 3, 4 Intermediate member 13, 13a Outer peripheral surface 21 Inner peripheral surface 31 Groove 41 Rubber tube 100, 100a Roller apparatus

Claims (3)

A rotatable shaft and
A metal or hard resin outer cylinder member provided on the outer periphery of the shaft and in contact with the film;
And an intermediate member provided between the shaft and the outer cylindrical member and having a cushioning property,
The roller device, wherein the intermediate member is configured to be adjustable in cushioning property. In the roller device according to claim 1,
The roller device according to claim 1, wherein the intermediate member is a cylindrical rubber material, is interposed between an outer peripheral surface of the shaft and an inner peripheral surface of the outer cylindrical member, and has a spiral groove. In the roller device according to claim 1,
The roller device according to claim 1, wherein the intermediate member includes a rubber tube spirally wound between an outer peripheral surface of the shaft and an inner peripheral surface of the outer cylindrical member.

Images