JP2009126622A - Meandering prevention system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a meandering preventing apparatus capable of attaining size reduction, space saving for mounting and application to a thin belt-like member. <P>SOLUTION: In the meandering preventing apparatus, a correcting portion 3 includes rotating shafts 20, 26 which are in parallel to a face direction of the metallic belt-like member 1, a pair of rotating rollers 11, 12 which can rotate in such a state that an identical position on a front and a rear faces of the metallic belt-like member 1 is sandwiched from both the sides in a thickness direction of the metallic belt-like member 1, a drive portion (motor) 13 which can change the rotating shafts 20, 26 of the rotating rollers 11, 12 in a carrying direction of the metallic belt-like member 1, a joint bar 35, a ball nut 33, link arm portions 31, 32, and spindles (16, 24). When a signal is received by a control portion 4, the rotating shafts 20, 26 of the rotating rollers 11, 12 are changed by a drive portion into a slant state to the carrying direction of the metallic belt-like member 1, thus correcting meandering by applying a force in a direction opposite to the meandering direction to the metallic belt-like member 1. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a meandering prevention device.

Conventionally, since the belt-like member that is continuously transferred may meander, the meandering is prevented by carrying the guide roller while sliding it appropriately on the end of the belt-like member in the width direction (hereinafter referred to as an edge). Yes.
However, in this case, the edge of the belt-shaped member may be damaged by the sliding of the guide roller. Therefore, the belt-shaped member is provided in a state where a plurality of rollers are stretched over the belt-shaped member. A technique for preventing meandering by applying a force in a direction opposite to the meandering direction to the belt-like member by tilting at (see Patent Document 1) is known.
JP-A-11-139524

However, in the conventional invention, since it is necessary to provide the belt-like member in a state where a plurality of rollers are spanned, there is a problem that the apparatus becomes large and the installation space is increased. In particular, the length of the roller needs to be set longer in proportion to the width of the belt-like member.
In addition, if the tension of the belt-like member is low, the desired meandering prevention effect cannot be obtained, and the burden of the belt-like member that is applied when the roller is tilted is large, so that a thin belt-like member that cannot be moderately tensioned is used. There was a problem that it could not be applied.

  The present invention has been made to solve the above-described problems, and the object of the present invention is to realize a device for preventing meandering that can be applied to a thin belt-like member at the same time that the device can be downsized and installed in a small space. Is to provide.

  According to the first aspect of the present invention, the detecting means for detecting the position of the edge of the belt-like member that is continuously transferred, the correcting means for correcting the meandering of the belt-like member, and the signal from the detecting means are received. When the meandering of the belt-like member is detected, the meandering prevention device comprises a control means for outputting a signal for operating the correction means, the correction means having a rotation axis parallel to the surface direction of the belt-like member, A pair of rotating rollers that can be rotated with the same positions of the front and back surfaces of the belt-shaped member sandwiched from both sides in the thickness direction of the belt-shaped member, and the rotation shafts of the rotating rollers are inclined with respect to the transport direction of the belt-shaped member A changeable drive means is provided, and when a signal is received from the control means, the drive means meanders the belt-like member by changing the rotation shaft of each rotary roller to an inclined state with respect to the transport direction of the belt-like member. Opposite direction And correcting the meandering by applying a force.

In the invention according to claim 1 of the present invention, the pair of rotating rollers as the correction means sandwich the same position of the front and back surfaces of the belt-like member that is continuously transferred from both sides in the thickness direction of the belt-like member. Rotate with.
The control means outputs a signal for operating the correction means when receiving the signal from the detection means, and the correction means receiving the signal inclines the rotation shaft of each rotary roller with respect to the transport direction of the belt-like member. In this state, the normal position can be maintained by correcting the meandering by applying a force in the direction opposite to the meandering direction to the strip member.
Further, since the pair of rotating rollers rotate in a state where the same positions of the front and back surfaces of the belt-like member are sandwiched from the thickness direction of the belt-like member, a desired meandering prevention effect can be obtained regardless of the tension of the belt-like member, It can be applied to thin strip members.
In addition, the apparatus can be reduced in size to reduce the installation space, and at the same time, stress that crushes the edge of the belt-like member does not act and there is no possibility of damage.

  Embodiments of the present invention will be described below with reference to the drawings.

Example 1 will be described below.
1 is a perspective view of the meander-preventing device of Example 1, FIG. 2 is a plan view thereof, FIG. 3 is a front view thereof, FIG. 4 is a right side view thereof, and FIG. FIG. 7 and FIG. 7 are simplified diagrams for explaining the operation of the correction unit according to the first embodiment.

First, the overall configuration will be described.
As shown in FIG. 1, in the meandering prevention device of the first embodiment, a metal strip member 1 as a strip member, a detection unit 2 (corresponding to the detection unit of the claims), and a correction unit 3 (correction unit of the claims) And a control unit 4 (corresponding to control means in claims) and the like.

The metal strip member 1 is used as a base material of a foil material of a metal catalyst carrier, and the material thereof is made of an alloy such as stainless steel and aluminum, for example, a very thin thickness of about several tens of microns and a predetermined width. And is formed in a band shape.
Further, the metal strip-like member 1 is continuously conveyed in the conveyance direction while maintaining a relatively low tension by a known conveyance unit (not illustrated) (for example, a conveyance roller).

  The detection unit 2 is arranged at a position downstream of the correction unit 3 in the transfer direction of the metal strip 1 and various sensors (for example, phototubes) that continuously detect the position of the edge 5 on one side of the metal strip 1. The detected position of the edge 5 is output as a signal to the control unit 4.

  The control unit 4 is electrically connected to each of the detection unit 2 and the motor 13 that drives the correction unit 3, and the meandering direction and the meandering dimension of the metal belt-shaped member 1 from the position of the edge 5 detected by the detection unit 2 ( (Bias amount) is detected, and a signal for correcting the meandering is transmitted to the motor 13 of the correction unit 3 and output.

Hereinafter, the correction unit 3 will be described in detail.
As shown in FIGS. 1-4, the correction | amendment part 3 is equipped with the bracket 10 fixed to the underfloor etc. which is not shown in figure, a pair of rotating rollers 11 and 12 provided in this bracket 10, and the motor 13 grade | etc.,. .
The bracket 10 is formed with a pair of fixed arm portions 14 and 15 that are spaced apart from the front and back surfaces of the metal strip member 1 and extend in the width direction.
A circular fixing hole 14a is formed at the thickness direction center (shown by a one-dot chain line in FIG. 2) of the metal strip member 1 at the tip of the fixing arm portion 14, and the rotation roller 11 is supported in the fixing hole 14a. One end of the shaft 16 is inserted.

As shown in FIG. 5, the other end portion 17 of the support shaft 16 of the rotating roller 11 is inserted into the insertion hole 18 a formed in the substantially cylindrical frame 18 with some movement allowance, Although illustration is omitted, rotation in the direction around the axis with respect to the frame 18 is restricted by coupling with a part of the side wall of the insertion hole 18a.
A stepped portion 16a having a reduced diameter is formed in the middle portion of the support shaft 16 of the rotating roller 11, and a spring 19 (corresponding to the adjusting means in the claims) is interposed between the stepped portion 16a and the frame 18. Has been.
A cylindrical rotary shaft 20 is fixed in a state of passing through the substantially cylindrical frame 18, and both ends of the rotary shaft 20 are composed of connecting rollers 22 and 23 that are prevented from coming off by retaining rings 21. A rotating roller 11 is provided.
In the first embodiment, the two connecting rollers 22 and 23 are used, but two or more connecting rollers may be used.

On the other hand, a fixing hole (not shown) is formed at the distal end of the fixed arm portion 15 similarly to the fixed arm portion 14, and one end portion of the support shaft 24 of the rotating roller 12 is inserted into the fixed hole. .
The other end of the support shaft 24 of the rotating roller 12 is formed integrally with the frame 25, and a columnar rotating shaft 26 is fixed in a state of passing through the frame 25.
Further, similarly to the rotating roller 11, the rotating roller 12 including the connecting rollers 27 and 28 is provided at both ends of the rotating shaft 26.

  Each of the connecting rollers 22, 23, 27, and 28 has an outer ring 30 fixed to the corresponding rotating shafts 20 and 26 via bearings 29, thereby being able to rotate independently.

The connecting rollers 22, 23, 27, and 28 (hereinafter referred to as rotating rollers 11 and 12) are provided in a state where the same positions on the front and back surfaces of the metal belt-shaped member 1 are sandwiched and pressed by the urging force of the spring 19. ing.
The amount of pressurization can be adjusted by changing the setting of the urging force of the spring 19.
In addition, one end portion of the link arm portion 31 is engaged with the midway portion of the support shaft 16, while one end portion of the link arm portion 32 branched from the midway portion of the link arm portion 31 to the midway portion of the support shaft 24. Are engaged.

As shown in FIG. 1, the other end of the link arm 31 is fixed to a ball nut 33 via a connecting member 34 so as to be rotatable.
The ball nut 33 is screwed to a connecting rod 35 having a ball screw connected to a rotating shaft (not shown) of the motor 13.

  The motor 13 is fixedly supported integrally with the frame body 36, and a pair of pins 37 (only one is shown) formed on the frame body 36 is formed of a pair of fixing portions 38 formed on the other end side of the bracket 10. It is inserted and fixed in each fixing hole 38a (only the upper part is shown).

  Accordingly, the motor 13 is provided so as to be rotatable within a predetermined angle range in a plane orthogonal to the rotation axis X1 with the frame body 36 as a center.

  Further, the rotation of the connecting rod 35 accompanying the drive of the motor 13 causes the ball nut 33 to move within the predetermined dimension range in the direction of the axis X2 while being screwed to the connecting rod 35, whereby the link arm portions 31, 32 are rotated by the rotation axis X3. Is provided so as to be rotatable within a predetermined angle range in a plane perpendicular to the center.

Further, the rotation shafts 20 and 26 of the rotating rollers 11 and 12 are inclined with respect to the transfer direction of the metal strip member 1 by the rotation of both the support shafts 16 and 24 engaged with the link arm portions 31 and 32. In other words, the pair of rotating rollers 11 and 12 can be directed to the right side in the transport direction or the left side in the transport direction.
At this time, since the other end side of the link arm portion 31 has an arc-shaped movement locus, the motor 13 and the frame body 13 are allowed to tilt around the rotation axis X1.
In the first embodiment, when the connecting rod 35 is rotated clockwise as viewed in FIG. 4 by driving the motor 13, the ball nut 33 is moved in the direction approaching the motor 13, and the rotating rollers 11, 12 are moved as shown in FIG. In FIG. 2, the ball nut 33 is moved in the direction away from the motor 13 when turned to the right in the conveying direction and turned counterclockwise, and the rotary rollers 11 and 12 are directed to the left in the conveying direction in FIG. This is not the case.

Next, the operation will be described.
In the meandering prevention device configured as described above, the metal belt-like member 1 to which the rotating rollers 11 and 12 of the correction unit 3 are continuously transferred is sandwiched from both sides in the thickness direction while sandwiching the same position from both sides in the thickness direction. It rotates in the direction around the axis of the rotation axis 20,26.
The detection unit 2 continuously detects the position of the edge 5 of the metal strip 1 and outputs a signal to the control unit 4.

  The control unit 4 detects meandering from the position of the edge 5 of the metal strip member 1 detected by the detecting unit 2, and determines the direction and speed of the rotating rollers 11 and 12 from the meandering direction and meandering dimension (bias amount). And the meandering is corrected so that the amount of deviation becomes zero.

Specifically, as shown in FIG. 6A, when the metal strip member 1 meanders to the left in the transport direction by a width W1, as shown in FIG. The twelve rotary shafts 20 and 26 are inclined by a predetermined angle θ1 clockwise with respect to the width direction of the metal strip member 1, in other words, the rotary rollers 11 and 12 are directed to the right in the conveying direction. A meandering is corrected by applying a force to the metal strip-like member 1 on the right side in the conveying direction.
In addition, although it is a supplement, after correcting the meandering of the metal strip 1, the rotating shafts 20 and 26 of the rotating rollers 11 and 12 are again returned to a state parallel to the conveying direction.

  At this time, as described above, the rotating rollers 11 and 12 are composed of the connecting rollers 22 and 23 and the connecting rollers 27 and 28 arranged on both sides of the center of the metal strip 1 in the width direction. When tilting, the metal strip member 1 can be made to follow well, and the meandering can be corrected well without causing wrinkles.

  Further, since each of the connecting rollers 22, 23, 27, 28 is provided so as to be independently rotatable, the followability to the metal strip member 1 can be further improved.

  Similarly, as shown in FIG. 7A, when the metal strip 1 meanders to the right in the transport direction, the rotating rollers 11 and 12 are moved to the left in the transport direction as shown in FIG. 7B. The meandering of the metal strip-shaped member 1 is corrected toward.

Here, in the conventional invention, there is a problem that the apparatus is enlarged and the installation space is increased.
In addition, there is a problem that it cannot be applied to a thin belt-like member that cannot be moderately tensioned.

  On the other hand, in the meandering prevention apparatus according to the first embodiment, the rotation rollers 11 and 12 do not increase in size due to the width of the metal strip-shaped member 1, and the installation space can be reduced by downsizing the apparatus.

  Further, since the rotation rollers 11 and 12 are structured to rotate by sandwiching the same position of the front and back surfaces of the metal strip member 1 from both sides in the thickness direction, a desired meandering prevention effect can be obtained regardless of the tension of the metal strip member 1. It can be applied to the thin metal strip member 1.

Next, the effect will be described.
As described above, in the meandering prevention device according to the first embodiment, the detection unit 2 that detects the position of the edge of the metal strip member 1 that is continuously transferred and the meander of the metal strip member 1 are detected. A meandering prevention device comprising a correction unit 3 for correction, and a control unit 4 for receiving a signal from the detection unit 2 and outputting a signal for operating the correction unit 3 when detecting the meandering of the metal strip 1, The correction unit 3 has rotation axes 20 and 26 parallel to the surface direction of the metal strip member 1, and sandwiches the same position of the front and back surfaces of the metal strip member 1 from both sides in the thickness direction of the metal strip member 1. A pair of rotating rollers 11 and 12 that can rotate in an inclined state, and a drive unit (motor that can change the rotating shafts 20 and 26 of the rotating rollers 11 and 12 to an inclined state with respect to the transfer direction of the metal strip 1 13, a connecting rod 35, a ball nut 33, link arm portions 31 and 32, and support shafts 16 and 24). When the signal is received, the drive unit changes the rotating shafts 20 and 26 of the rotary rollers 11 and 12 to the inclined state with respect to the transfer direction of the metal strip member 1, thereby causing the metal strip member 1 to meander. Therefore, the device can be reduced in size and installed in a small space, and at the same time, can be applied to the thin metal strip member 1.

  Further, since the spring 19 capable of adjusting the amount of pressure applied to the metal strip member 1 by the pair of rotating rollers 11 and 12 is provided, the metal strip member 1 of various thicknesses can be handled.

  Moreover, since each rotary roller 11 and 12 is constituted by two continuous connecting rollers 22 and 23, when the rotary rollers 11 and 12 are inclined, the metal belt-like member 1 can be satisfactorily followed and wrinkles are generated. The meandering can be corrected well.

  Further, since each of the connecting rollers 22 and 23 is provided so as to be independently rotatable, the followability with respect to the metal strip member 1 can be further improved.

  In the conventional invention, some stress is applied to the edge of the belt-shaped member when the roller is tilted. In the first embodiment, the pair of rotating rollers 11 and 12 are parallel to the surface direction of the metal belt-shaped member 1. Since the rotary shafts 20 and 26 are provided and are provided so as to be rotatable in a state of being sandwiched from both sides in the thickness direction of the metal belt-like member 1 at the center in the width direction of the front and back surfaces of the metal belt-like member 1, the metal belt No force acts on the edge of the body 1 and there is no risk of the edge being damaged.

Although the embodiments have been described above, the present invention is not limited to the above-described embodiments, and design changes and the like within the scope not departing from the gist of the present invention are included in the present invention.
For example, in Example 1, the metal strip member 1 was applied to the transfer as a base material of the metal foil material used for the metal catalyst carrier. However, the type of the strip member can be set as appropriate, for example, a heat exchanger. It can also be applied to fin materials and the like.

  In the first embodiment, the amount of pressure applied to the metal strip 1 by the pair of rotating rollers 11 and 12 is adjusted by the spring 19, but may be adjusted by an actuator such as an air type or a hydraulic type.

  Further, the configuration of the drive unit (drive means) can be set as appropriate. For example, as shown in FIG. 8, the motors M1 and M2 are fixed to the fixed arm units 14 and 15, and the rotation shafts are respectively associated with the corresponding support shafts 16. , 24 may be connected. The motors M1 and M2 are driven in synchronization by the control unit 4.

It is a perspective view of the meandering prevention apparatus of Example 1. It is a top view of the meandering prevention apparatus of Example 1. It is a front view of the meandering prevention apparatus of Example 1. It is a right view of the meandering prevention apparatus of Example 1. It is sectional drawing explaining the inside of a rotating roller. FIG. 6 is a simplified diagram for explaining the operation of the correction unit according to the first embodiment. FIG. 6 is a simplified diagram for explaining the operation of the correction unit according to the first embodiment. It is a right view of the meandering prevention apparatus of other Examples.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Band-shaped member 2 Detection part 3 Correction | amendment part 4 Control part 5 Edge 10 Bracket 11, 12 Rotating roller 13 Motor 14, 15 Fixed arm part 14a Fixing hole 16, 24 Support shaft 16a Step part 17 Other end part 18, 25 Frame 18a Insertion Hole 19 Spring 20, 26 Rotating shaft 21 Retaining ring 22, 23, 27, 28 Connecting roller 29 Bearing 30 Outer ring 31, 32 Link arm portion 33 Ball nut 34 Connecting member 35 Connecting rod 36 Frame body 37 Pin 38 Fixing portion 38a Fixing hole

Claims (5)

Detection means for detecting the position of the edge of the belt-like member that is continuously transferred;
Correction means for correcting meandering of the belt-shaped member;
A meandering prevention device comprising control means for outputting a signal for operating the correction means when detecting the meandering of the belt-like member in response to a signal from the detection means,
The correction means has a rotation axis parallel to the surface direction of the belt-shaped member, and a pair of rotating rollers that can rotate in a state where the same position of the front and back surfaces of the belt-shaped member is sandwiched from both sides in the thickness direction of the belt-shaped member;
Drive means capable of changing the rotation shaft of each of the rotating rollers to an inclined state with respect to the transport direction of the belt-shaped member,
When receiving a signal from the control means, the driving means applies a force in the direction opposite to the meandering direction to the belt-like member by changing the rotation shaft of each rotary roller to an inclined state with respect to the transport direction of the belt-like member. And meandering correction device for correcting meandering. The meander-preventing device according to claim 1,
An apparatus for preventing meandering, comprising adjusting means capable of adjusting the amount of pressure applied to the belt-like members of the pair of rotating rollers. The meander prevention device according to claim 1 or 2,
The meandering prevention device, wherein each of the rotating rollers is composed of two or more connecting rollers. The meander prevention device according to claim 3,
A meandering prevention device, wherein the connecting rollers are rotatably provided independently of each other. In the meandering prevention device according to any one of claims 1 to 4,
The pair of rotating rollers have a rotation axis parallel to the surface direction of the belt-like member, and are provided rotatably in a state where the center positions in the width direction of the front and back surfaces of the belt-like member are sandwiched from both sides in the thickness direction of the belt-like member. A meandering-preventing device characterized by that.

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