JP5291675B2 - Belt-like body transport device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a carrying device of a belt-like body which can remove liquid between a roller and the belt-like body to suppress the meandering of the belt-like body, is small in mechanical loss, hardly causes the slipping and does not leave damage or traces on the surface of the belt-like body even if being used for a place where a large amount of liquids are attached to the roller of a pickling device or the like. <P>SOLUTION: The carrying device 100 of belt-like body has a covered roller 10 including a metallic roller core 2 and a rubber layer 6 with which the outer circumferential surface of the roller core is covered, and carries the belt-like body 50 while being wetted by the liquid. The covered roller is provided with a plurality of slits 6a which are extended at angles to the shaft direction L of the covered roller and in which section surfaces S are in contact with each other on the rubber layer surface. <P>COPYRIGHT: (C)2012,JPO&amp;INPIT

Description

  The present invention relates to a belt-like body transporting device used for transporting a belt-like body such as a metal strip.

Conventionally, a metal roll has been widely used as a roll of a conveying device that conveys a strip such as a metal strip. However, since the metal roll is hard, there is a problem that a dent or a scratch is generated on the strip. Then, the roll which lined rubber on the metal roll surface, and the roll which wound the nonwoven fabric around the metal roll surface are known.
Further, as a roll for removing a liquid such as moisture adhering to a steel plate or the like, a roll in which an annular roll piece made of a nonwoven fabric is laminated on the outer periphery of a pedestal has been developed (Patent Document 1). This roll is excellent in removal of the liquid by providing a depression on the outer periphery of the roll portion made of the nonwoven fabric, increasing the gripping force of the steel plate, etc., and absorbing the liquid with the nonwoven fabric.

JP 2009-174647 A

However, in the case of the technique described in Patent Document 1, when used in a place where a large amount of liquid adheres to a roll such as a pickling apparatus, the nonwoven fabric cannot absorb the liquid, and instead a liquid film is formed on the surface of the nonwoven fabric. In some cases, meandering of a steel plate or the like conveyed using a sheet cannot be suppressed. Moreover, since the weight of the roll increases as the roll sucks the liquid, resistance (mechanism loss) against the rotation of the roll increases. Therefore, when the drive motor is not connected to the roll, the roll does not follow the movement of the steel plate or the like and slip occurs. On the other hand, when the drive motor is connected to the roll, the load applied to the drive motor increases, and the drive motor is likely to break down.
Further, in the case of the technique described in Patent Document 1, since a depression opening in a U-shape is formed on the surface of the roll (nonwoven fabric), the trace of the depression is transferred in contact with a thin belt-like body such as a copper foil. There is a problem that.

  That is, the present invention has been made in order to solve the above problems, and even when used in a place where a large amount of liquid adheres to a roll such as a pickling apparatus, the liquid between the strip is removed to form a strip. An object of the present invention is to provide a belt-shaped body conveyance device that suppresses meandering of the body, is low in mechanical loss, and does not easily slip, leaving no scratches or marks on the surface of the belt-shaped body.

  The belt-like body conveyance device of the present invention has a coating roll having a metal roll core and a rubber layer covering the outer peripheral surface of the roll core, and conveys the belt-like body in a wet state with a liquid. And the said coating roll is extended in the said rubber layer surface at an angle with the axial direction of the said coating roll, and the slit with which cut surfaces mutually contact in the said rubber layer surface is provided.

The base of the slit may be located 5 to 10 mm outside the outer peripheral surface of the roll core.
The slits may be provided in an annular shape along the circumferential direction of the coating roll, and the individual slits may be arranged at intervals in the axial direction.

  According to the present invention, even when used in a place where a large amount of liquid adheres to a roll such as a pickling apparatus, the liquid between the strips is removed to suppress meandering of the strips, and at the same time, low mechanical loss and slip It is difficult to damage and does not leave scratches or marks on the surface of the belt.

It is a partially broken perspective view which shows the coating roll used for the conveying apparatus of the strip | belt-shaped body which concerns on embodiment of this invention. It is sectional drawing of a rubber layer. It is a figure which shows the conveying apparatus of the strip | belt-shaped body which concerns on embodiment of this invention. It is a figure which shows another form of a slit. It is a top view which shows the coating | coated roll used for the conveying apparatus of the strip | belt-shaped body which concerns on the 2nd Embodiment of this invention. It is a top view which shows the coating | coated roll used for the conveying apparatus of the strip | belt-shaped body which concerns on the 3rd Embodiment of this invention. It is a top view which shows the coating | coated roll used for the conveying apparatus of the strip shaped body which concerns on the 4th Embodiment of this invention. It is a top view which shows the coating | coated roll used for the conveying apparatus of the strip | belt-shaped body which concerns on the 5th Embodiment of this invention.

Hereinafter, a belt-like body conveyance device according to an embodiment of the present invention will be described. Although a strip | belt-shaped body is not specifically limited, For example, the board or foil of metals or alloys, such as copper, aluminum, and steel, is mentioned. In particular, the coating roll according to the embodiment of the present invention is suitably used for conveying a plate or foil having a thickness of 400 μm or less. Although the minimum in particular of the thickness of a strip | belt shaped object is not restrict | limited, For example, they are several micrometers-10 micrometers.
Moreover, the belt-shaped body conveyance device according to the embodiment of the present invention includes the following coating rolls, which are in contact with the band-shaped body in a state in which the coating roll is wet with liquid, and are stretched and conveyed on the roll. Any apparatus may be used, and examples thereof include a pickling apparatus, a degreasing apparatus, and a wet plating apparatus. Since the coating roll installed in these apparatuses is immersed in pickling solution, degreasing solution or plating solution, or transports the belt-like body while being sprayed with these solutions, it becomes wet with the liquid.

FIG. 1 is a partially broken perspective view showing a coating roll 10 used in a belt-like body transporting apparatus according to a first embodiment of the present invention. The covering roll 10 includes a metal roll core 2 and a rubber layer 6 that covers the outer peripheral surface of the roll core 2.
The metal roll core 2 has a cylindrical shape, and a shaft 2a is attached to the center. The roll core 2 can be made of steel, stainless steel, aluminum or the like, but is not limited thereto, and various metals and alloys can be used. The outer diameter of the roll core 2 is not particularly limited, but can usually be about 50 to 1000 mm.
In addition, in order to improve adhesiveness with the rubber layer 6, you may process the roll core 2 surface with a well-known primer.

The rubber layer 6 is firmly fixed by being in close contact with the outer surface of the roll core 2. The rubber layer 6 is vulcanized or fixed to the surface of the roll core 2 with a predetermined adhesive, or a material to be the rubber layer 6 is flowed to the surface of the roll core 2 and cured by vulcanization, condensation or the like to form the rubber layer 6. Can be formed.
The material of the rubber layer 6 is not particularly limited. For example, acrylonitrile / butadiene copolymer (NBR), polychloroprene (chloroprene rubber), ethylene / propylene terpolomer (EPT), polysiloxane (silicone rubber), isosiloxane, and the like. Examples include propylene / isobutylene copolymer (IIR), styrene / butadiene copolymer (SBR), polyurethane (urethane rubber), chlorosulfonated polyethylene (CSM), and fluorinated hydrocarbon (fluororubber). In particular, when a slit described later is provided, NBR or SBR which is excellent in the strength and elasticity of the slit is preferable.

  A plurality of slits (cuts) 6 a are provided on the surface of the rubber layer 6. In the first embodiment, each slit 6a is annularly provided along the circumferential direction of the coating roll 10, and the direction in which each slit 6a extends (the circumferential direction of the coating roll 10) is orthogonal to the axial direction L of the coating roll. Yes. In addition, the slits 6a are arranged with a gap G in the axial direction L.

FIG. 2 is a cross-sectional view of the rubber layer 6. The slit 6 a cuts vertically from the surface of the rubber layer 6 toward the roll core 2, and the base 6 b of the slit 6 a is located outside the outer peripheral surface of the roll core 2 by a distance D. Further, due to the elastic force of the rubber layer 6, the cut surfaces S of the slits 6a are in contact with each other on the surface (FIG. 2A).
Here, when the coating roll 10 conveys the belt-like body 50 in a state wet with the liquid, the liquid W enters the slit 6a from the cut surface S of the slit 6a by capillary action or the like and is held (FIG. 2B). . The retained liquid W is discharged from the inside of the slit 6 a by the rotation of the coating roll 10 when the strip 50 is separated from the coating roll 10.

In this manner, the liquid at the interface between the belt-like body 50 and the rubber layer 6 is discharged after being held inside the slit 6a. The slit 6a that holds the liquid is excellent in shape retention, and further, the slit 6a is the rubber layer. 6 Since it cuts perpendicularly from the surface, when the strip 50 is separated from the coating roll 10, the liquid is quickly and reliably discharged. For this reason, compared with the case where the liquid is absorbed by the nonwoven fabric, the liquid can be reliably held and discharged even if it is used in a place where the liquid adheres to a roll such as a pickling apparatus, and the meandering of the strip is suppressed. To do.
Further, since the cut surfaces S of the slits 6a are in contact with each other on the surface, the cut surfaces of the slits 6a are not opened and do not have a hollow shape, and the slits 6a are in contact with the belt-like body 50 on the flat surface C. For this reason, the corners of the recesses are prevented from coming into contact with a thin band (400 μm or less) of a copper foil or the like and the traces are not transferred.

The thickness of the rubber layer 6 is not particularly limited, but can usually be about 5 to 30 mm. The interval D is preferably 5 to 10 mm. When the distance D is less than 5 mm, when the slit 6 is torn, liquid such as pickling solution may penetrate into the metal roll core 2 to cause corrosion. On the other hand, when the distance D exceeds 10 mm, the depth of the slit 6 becomes shallow, the elastic force of the rubber layer 6 is weakened, and the cut surfaces S of the slit 6a are hardly in contact with each other. In order to secure the elastic force of the rubber layer 6 so that the cut surfaces S of the slits 6a are easily in contact with each other, the depth of the slit 6 is preferably 10 mm or more. In addition, when the thickness of the rubber layer 6 is small (for example, 10 mm or less), it is preferable that the depth of the slit 6 is 5-10 mm.
The interval G in the axial direction L of each slit 6a is preferably about 5 to 20 mm. When the gap G is less than 5 mm, the thickness of each slit 6a in the axial direction L is reduced and the elastic force is weakened, so that the cut surfaces S of the slits 6a are hardly in contact with each other. When the gap G exceeds 20 mm, the amount of liquid retained by each slit 6a tends to decrease.

FIG. 3 shows a belt-like body transport apparatus 100 according to an embodiment of the present invention. The belt-shaped body conveyance device 100 includes a coating roll 10, a rotating shaft 102 that pivotally supports the coating roll 10, and a liquid tank 104 that wets the belt-shaped body 50 with liquid. Further, the rotating shaft 102 may be connected to a drive system such as a motor or may be idled. Further, the transport device 100 may include various known tension levelers, meandering prevention devices, and the like.
In addition, although the conveying apparatus 100 is provided with the coating roll 10 and the rotating shaft 102 as essential components, the liquid tank 104 may not be provided.
In FIG. 3, the liquid W is held and discharged from the slit 6a as follows. When the belt-like body 50 wet with the liquid is introduced into the coating roll 10 at the point A, the liquid W enters the slit 6a from the cut surface of the slit 6a (not shown) and is held. When the strip 50 is separated from the coating roll 10 at the point B, the liquid W is discharged from the inside of the slit 6 a by the rotation of the coating roll 10.

  FIG. 4 shows another form of the slit 6a. In the case of the slit 6a, the base portion 6b extends in the axial direction, but the interval between the cut surfaces S of the slit 6a is narrowed from the base portion 6b toward the rubber layer 6 surface. The cut surfaces S are in contact with each other at the tip of the slit 6a (the surface of the rubber layer 6).

FIG. 5 is a plan view showing the covering roll 11 used in the second embodiment of the present invention. In addition, in the strip | belt-shaped body conveyance apparatus concerning each following embodiment, since structures other than a coating roll are the same as embodiment described in FIG. 3, only the coating roll is demonstrated.
In the second embodiment, each slit 6a is annularly provided along the circumferential direction of the coating roll while forming a predetermined angle (a sharp angle of less than 180) with the axial direction L. Each slit 6 a is configured such that the inclination direction is symmetric at the central portion in the axial direction L of the covering roll 11.
FIG. 6 is a plan view showing the covering roll 12 used in the third embodiment of the present invention. In the third embodiment, each slit 6a is provided in an annular shape along the circumferential direction of the coating roll while forming a predetermined angle (a sharp angle of less than 180) with the axial direction L. All the slits 6a have the same inclination direction.
In the examples of FIGS. 5 and 6, each slit 6a has an annular shape along the circumferential direction of the coating roll. If it does in this way, as demonstrated in FIG. 3, the liquid W which entered and was hold | maintained inside the slit 6a will be easy to be discharged | emitted by rotation of a coating | coated roll. On the other hand, for example, slits having a predetermined angle with the axial direction L as shown in FIG. 6 may be formed in a continuous spiral shape, but if the slits are continuous (that is, one slit itself). The held liquid W tends to move along the slit and is difficult to be discharged.

FIG. 7 is a plan view showing the covering roll 13 used in the fourth embodiment of the present invention. In the fourth embodiment, as in the second embodiment, each slit 6a is annularly provided along the circumferential direction of the coating roll while forming a predetermined angle (45 degrees) with the axial direction L. Each of the slits 6a is configured such that the tilt direction is symmetric at the central portion in the axial direction L of the coating roll 11, and the left and right slits 6a are connected to each other at the central portion. Is configured.
FIG. 8 is a plan view showing a coating roll 14 used in the fifth embodiment of the present invention. In the fifth embodiment, each slit 6a is provided in a mesh shape (diamond cut). In the fifth embodiment, each slit 6a forms a predetermined angle (45 degrees) with the axial direction L.
7 and 8, each slit 6a has an annular shape along the circumferential direction of the coating roll. If it does in this way, as demonstrated in FIG. 3, the liquid W which entered and was hold | maintained inside the slit 6a will be easy to be discharged | emitted by rotation of a coating | coated roll.

  It goes without saying that the present invention is not limited to the above-described embodiment, but extends to various modifications and equivalents included in the spirit and scope of the present invention. For example, in the belt-like body conveyance device of the present invention, the coating roll can be used in a liquid such as a pickling device or a rust preventive coating device. In the belt-shaped body conveyance device of the present invention, the coating roll increases the frictional force with the belt-shaped body even in the liquid, so that the sliding with the belt-shaped body is reduced, and further, the coating roll is in contact with the belt-shaped body. The transfer of traces is suppressed.

2 Roll core 6 Rubber layer 6a Slit 6b Base of slit 10-14 Covering roll 50 Band-shaped body 100 Belt-shaped body conveying device L Axial direction of coating roll S Slit cut surface

Claims (3)

A belt-shaped body transport device that has a coated roll having a metal roll core and a rubber layer that covers the outer peripheral surface of the roll core, and transports the belt-shaped body in a wet state with a liquid,
The said covering roll is a conveyance apparatus of the strip | belt-shaped body by which the said rubber layer surface is extended at an angle with the axial direction of the said covering roll, and the slit which the cut surfaces contact mutually on the said rubber layer surface is provided. The belt-like body transport device according to claim 1, wherein a base portion of the slit is located 5 to 10 mm outside from an outer peripheral surface of the roll core. 3. The belt-shaped body conveyance device according to claim 1, wherein the slits are provided in an annular shape along a circumferential direction of the coating roll, and the individual slits are arranged at intervals in the axial direction.

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