JP2001302048A - Travelling direction changing device for belt-like member - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a travenlling direction changing device for a belt-like member capable of improving various problems in a conventional tranelling direction changing device for a belt-like member. SOLUTION: Many rotary wheels 17 rotating in the same direction as the travelling direction of the belt-like member 26 are arranged along a spiral face to rotate many rotary wheels 17 in synchronization with the travelling speed of the belt-like member 16.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for changing the traveling direction of a continuously moving long strip used in a strip processing facility.

[0002]

2. Description of the Related Art In a facility for continuously processing a strip material, it may be difficult to arrange each processing apparatus on a straight line due to restrictions on an installation space. In this case, an apparatus that arranges the processing devices in a parallel or right angle direction and that changes the traveling direction of the band material is used to pass the band material through the processing devices arranged in the parallel or right angle direction. . As a device for changing the traveling direction of the strip used for such a purpose, there is, for example, a device as disclosed in JP-A-55-80641 and JP-A-56-151205.

As shown in FIG. 5, these traveling direction changing devices 70 are provided with a large number of rotating wheels (rotators) 72 on the surface of a cylindrical body 71, the outside of which forms a virtual spiral curved surface. A strip 73 is formed on the virtual spiral curved surface to be formed.
To change its direction.
More specifically, a number of rotating wheels 72 are arranged at predetermined positions on the outer surface of the cylindrical body 71 so as to be rotatable in the same direction as the traveling direction of the band-shaped material 73. The virtual spiral curved surface through which the material 73 passes.
Here, reference numerals 74 and 75 denote bearings of the cylindrical body 71, and reference numeral 76 denotes a meandering correction motor. As shown in FIG. 6, the rotating wheel 72 is mounted on the outer surface of the cylindrical body 71 via a mounting base 77. On the rotating wheel shaft 78, a rotating force generating means is provided for the rotating wheel 72. In the case of the conventional traveling direction changing device 70 in which the rotating wheel 72 is disposed on the cylindrical body 71, the rotating wheel 72 is moved by friction caused by the passing band-shaped member 73 contacting the circumferential surface of the rotating wheel 72. It is rotating.

[0004]

However, FIG.
As shown in FIG. 6, the rotating wheel 72 on the cylindrical body 71 is in a rotating state due to friction caused by the passing band-shaped member 73 contacting the circumferential surface of the rotating wheel 72. If the contact between the belt 72 and the strip 73 is insufficient or separated, the rotating wheel 72 is decelerated by the frictional resistance of the bearing 79 of the rotating wheel 72. Conversely, the non-contact rotating wheel 7
2 contacts the strip 73, the rotating wheel 72
And the rotation speed of the rotating wheel 72 is changed
Until the transport speed becomes equal, a difference occurs between the two.
If an inconsistency occurs between the rotational speed of the rotating wheel 72 and the transport speed of the belt-shaped material 73, the surfaces of the rotating wheel 72 and the belt-shaped material 73 may be scratched, or the circumferential contact surface of the rotating wheel 72 may be significantly reduced. Causes wear problems. Scratches cause a reduction in product quality and a reduction in product yield, and wear of the rotating wheel 72 causes an increase in the frequency of replacing the rotating wheel 72, resulting in a problem of a reduction in product production. This problem is likely to occur when the shape of the strip is non-uniform or thick, and the problem tends to become more pronounced as the transport speed of the strip increases.

[0005] Generally, the band-shaped material is allowed to have some shape defects (ear waves, middle elongation) depending on the processing equipment. Further, it may be difficult to avoid the fluctuation of the tension and the meandering of the band-shaped material depending on the devices disposed before and after the traveling direction changing device and the form of processing thereof. In the case of poor shape, this is the rotating wheel through which the good and bad portions of the strip pass, in the case of tension fluctuation, the rotating wheel at the end of the device placed in the horizontal path, and in the case of meandering, the edge of the strip. In the rotating wheel disposed in the band, the belt-shaped material and the rotating wheel repeat contact and non-contact, and the mismatch between the rotational peripheral speed of the rotating wheel and the transport speed of the belt-like material is repeated.

For this reason, Japanese Patent Application Laid-Open No. 56-127537 proposes that an elastic belt is inserted between a rotating wheel and a belt-like material, and Japanese Utility Model Application Laid-Open No. 56-151205 easily wears the belt. A proposal for facilitating replacement of a rotating wheel and the like are disclosed. However, the former proposal has a problem in that the device becomes large-scale, and the driving consumed by the deformation of the elastic body is large, so that a large-capacity driving source is required. In addition, the latter proposal cannot reduce slip and wear of the rotating wheel, and as a result, could not solve the problem of the quality of the strip. Further, in the conventional device, since the power required for rotating the rotating wheel is supplied from the strip, the tension of the strip in the section passing through the traveling direction changing device must be increased, and furthermore, depending on the size of the strip. Is located on the downstream side (rear side) of the traveling direction changing device on the upstream side (front side).
Was significantly increased in some cases. In order to prevent the tension of the strip passing through the traveling direction changing device from being restricted or affecting the tension before and after the traveling direction changing device, Japanese Utility Model Laid-Open Publication No. 3-81208 discloses that the entrance side of the device is Although a method of installing a bridle device on the exit side is disclosed, there is a problem that a bridle device is required and equipment cost is significantly increased. The present invention has been made in view of such circumstances, and an object of the present invention is to provide a device for changing the traveling direction of a strip which can solve the above-described problems in the conventional device for changing the traveling direction of a strip.

[0007]

According to the present invention, there is provided an apparatus for changing the direction of travel of a strip according to the present invention, wherein the apparatus changes the direction of travel of the strip by winding the strip around a spiral surface. In the apparatus, a plurality of rotating wheels that rotate in the same direction as the traveling direction of the band-shaped material are arranged along the spiral surface, and a rotation that rotates the plurality of rotating wheels in synchronization with the traveling speed of the band-shaped material. A drive mechanism is provided.

A number of rotating wheels are arranged on a helical surface so that their rotating directions coincide with the traveling direction of the belt-shaped material, and an envelope formed by the outer peripheral surface of the number of rotating wheels is a helical surface. . When the belt is wound 180 ° along the spiral envelope surface and the belt is transported, a number of rotating wheels are rotated in synchronization with the traveling speed of the belt using a rotary drive source such as an electric motor. Therefore, even if the contact between the rotating wheel and the strip is insufficient or separated, the rotating ring does not decelerate due to frictional resistance of the bearing or the like, and has the same peripheral speed as the traveling speed of the strip. Can keep spinning. Further, even if the belt-shaped material comes into contact with the rotating wheel in a non-contact state, speed mismatch does not occur between the peripheral speed of the rotating wheel and the traveling speed of the belt-shaped material.

In the apparatus for changing the traveling direction of a strip according to the present invention, a fixed shaft on which a number of bearings for supporting a large number of the rotating wheels obliquely along the traveling direction of the strip is disposed, and the fixed shaft. A drive shaft that is provided eccentrically inside and drives each of the rotating wheels via a meshing power transmission mechanism, and a plurality of the fixed shafts are arranged along the inside of the spiral surface, and One end of each of the drive shafts provided on the fixed shaft may be connected to a rotation drive mechanism that simultaneously rotates the respective drive shafts.

A number of rotating wheels are mounted on a fixed shaft via a bearing at an angle equal to the traveling direction of the band, that is, the angle at which the band is wound around the axis of the spiral surface, and the fixed shaft is connected to the spiral surface. , The envelope surface formed by the outer peripheral surfaces of many rotating wheels can be a spiral surface. 180 ° along the spiral envelope surface
The direction of travel of the strip can be changed by winding. For example, when the rotation direction of a large number of rotating wheels arranged on a helical surface is inclined by 45 ° with respect to the axis of the helical surface, the belt-shaped material is transported in a direction inclined by 45 ° with respect to the axis of the helical surface. It becomes possible to do. As a result, the direction of travel of the strip during the half rotation of the strip along the spiral surface is changed by 90 degrees.
° Can be changed. Further, since one end of each drive shaft is connected to a rotation drive mechanism that rotates each drive shaft at the same time, a large number of drive shafts can be synchronously rotated at the same speed. Further, the rotation of the drive shaft can be changed to the rotation of the rotating wheel by the meshing power transmission mechanism.

Further, in the belt-moving direction changing device according to the present invention, the meshing power transmission mechanism includes a ring-shaped gear provided on one side of the rotating wheel attached to the bearing portion, and meshing with the ring-shaped gear. And an external gear attached to the drive shaft. The rotation of the drive shaft is transmitted to each rotating wheel by meshing a number of external gears provided on the driving shaft with a ring gear provided on one side of each rotating wheel. For this reason, a large number of rotating wheels provided on the fixed shaft through which the drive shaft is inserted can all be rotated at the same rotation speed in synchronization. As a result, when the respective drive shafts are synchronously rotated at the same rotational speed, all the rotating wheels arranged on the spiral surface can be synchronously rotated at the same rotational speed.

[0012]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, embodiments of the present invention will be described with reference to the accompanying drawings to provide an understanding of the present invention. Here, FIG. 1 is a plan view of a traveling direction changing device of the strip material according to an embodiment of the present invention, FIG. 2 is a side view of the traveling direction changing device of the same strip material, and FIG. FIG. 4 is a cross-sectional plan view of the rotating wheel provided in the changing device.
FIG. 5 is a perspective side view of a rotating wheel portion provided in the traveling direction changing device for the band-shaped material.

As shown in FIGS. 1 and 2, a traveling direction changing device 10 for a band-shaped material according to an embodiment of the present invention has a cylindrical shape fixedly supported on a base base 11 via bearings 12 and 13. The support 14, a plurality of fixed shafts 15 provided on the outer peripheral surface of the cylindrical support 14, and the plurality of fixed shafts 15 are arranged obliquely along the traveling direction of the strip 16,
A large number of rotating wheels 17 rotating in the same direction as the traveling direction of
A plurality of drive shafts 18 eccentrically provided in the fixed shaft 15 and configured to rotationally drive the rotating wheel 17 via a meshing power transmission mechanism.
And a rotation drive mechanism 19 connected to one ends of the plurality of drive shafts 18. Hereinafter, these will be described in detail.

The base stand 11 is made of a member having sufficient rigidity, and has mounting stands 20 and 21 on both sides thereof.
2 and 13 are provided. The cylindrical support 14 is attached to the cylindrical body 22, one end 23 of a disk shape attached to both ends of the cylindrical body 22, the other end 24, and the one end 23 and the other end 24. It has support shafts 25 and 26 for the cylindrical support 14.

As shown in FIG. 3, the fixed shaft 15 is provided with a bearing portion 27 for supporting a number of rotating wheels 17 obliquely along the traveling direction of the strip 16. The bearing portion 27 has an attachment angle of the rotating wheel 17 with respect to the fixed shaft 15 of, for example, 4 degrees.
Oblique shaft sleeve 28 and rotating wheel 1 defined to be at 5 °
7 is rotatably mounted on the oblique shaft sleeve 28. A fixed shaft 15 provided with a number of rotating wheels 17 is provided with bearings 30 provided at both ends of the fixed shaft 15.
Along the outer peripheral surface of the cylindrical body 22, that is, while gradually shifting in the axial direction of the cylindrical body 22 along the inside of the spiral surface, as shown in FIG. Install over half a circumference. By disposing the fixed shaft 15 in this manner, a spiral surface through which the band-shaped plate 16 passes can be formed along the outer surface of the cylindrical body 22. Also,
The drive shaft 18 eccentrically provided in each fixed shaft 15 is connected to the other end 2 of the cylindrical body 22 via a plurality of drive shaft bearings 31.
Stretched to position 4.

As shown in FIG. 1, the range in which a large number of rotating wheels 17 are arranged on the fixed shaft 15 is as follows, assuming that the width of the strip 16 to be processed by the traveling direction changing device 10 is W. The width of the band-shaped member 16 is about 1.5 to 2 times the width of the band-shaped member 16. As a result, the bottom of the strip 16 that passes obliquely can be supported over a wide range from the back side. Further, as shown in FIG. 2, in this embodiment, thirteen fixed shafts 15 are provided on the outer peripheral surface of the cylindrical body 22 over a half circumference. However, even if the number is further increased, the number is reduced. Even in such a case, the present invention is applied. Each rotating wheel 1
Since the cross-section of the envelope formed by the outer surface of 7 forms a semicircular arc, the passing strip 16 is held by the rotating wheels 17 from the back side.

Next, a description will be given of a rotary drive mechanism 19 connected to one end of each drive shaft 18 and transmitting a rotary drive force to each drive shaft 18. The rotation drive mechanism 19 includes a small gear 32 provided at an end of each drive shaft 18 extending to a position on the other end 24 side of the cylindrical body 22, and an intermediate gear 3 meshing with each small gear 32.
3, a drive gear 34 meshing with the intermediate gear 33, and an electric motor 36 which is an example of a rotary drive source having an output shaft 35 connected to the drive gear 34. When the electric motor 36 is operated, the driving gear 3 attached to the output shaft 35 is driven.
4 rotates and is transmitted to the rotation of the intermediate gear 33, and further, through each small gear 32 meshing with the intermediate gear 33, each drive shaft 1
8 will rotate. As a result, each drive shaft 18 can be synchronously rotated at the same rotational speed.

Next, a description will be given of a meshing power transmission mechanism provided on each drive shaft 18 for rotatingly driving a number of rotating wheels 17 attached to each fixed shaft 15. FIG.
As shown in FIG. 4, the meshing power transmission mechanism has a ring gear 37 provided on one side of the rotating wheel 17 and an external gear 38 attached to the drive shaft 18 meshing with the ring gear 37. Here, the external gears 38 are attached to the drive shaft 18 by the same number as the number of the rotating wheels 17 attached to the fixed shaft 15 with the same interval as the attaching interval of the rotating wheels 17. Since the teeth of the external gear 38 and the teeth of the ring gear 37 mesh one-to-one, when the external gear 38 moves by one tooth,
The teeth of the ring gear 37 can be moved by one tooth. Therefore, when the drive shaft 18 makes one rotation, the external gear 3
The ring gear 37 can be rotated by an angle corresponding to the ratio of the number of teeth of 8 to the number of teeth of the ring gear 37. As a result, the rotating wheel 17 can be rotated by the same angle.

As shown in FIG. 3, the fixed shaft 15 having the drive shaft 18 eccentrically provided therein has, for example, an eccentric through hole 39 and a partially exposed through hole 39 on the surface of the fixed shaft 15. And a number of notches 40 to be formed. Here, the notch portion 40 is attached to the rotating shaft 1 to be attached to the fixed shaft 15.
7 are provided at the same intervals as the mounting intervals of the rotating wheels 17. Therefore, when the drive shaft 18 is inserted into the through hole 39 of the fixed shaft 15, each of the external gears 38 attached to the drive shaft 18 can be exposed in each of the notches 40. Therefore, the external gear 38 exposed from the notch 40 and the ring gear 37 provided on one side of the rotating wheel 17 are provided.
When the rotating wheel 17 is attached to the fixed shaft 15 via the oblique shaft sleeve 28, the rotation of the drive shaft 18 is
7 can be transmitted.

Next, a method of changing the traveling direction of the strip 16 using the traveling direction changing apparatus 10 according to one embodiment of the present invention will be described with reference to FIG. A large number of rotating wheels 17 are mounted at an angle of 45 ° with respect to the fixed shaft 15, and the fixed shaft 15 is arranged parallel to the axis of the cylindrical support 14. For this reason, when the band 16 is inclined at 45 ° with respect to the axis of the cylindrical support 14 and wound 180 ° along a spiral envelope formed by a large number of rotating wheels 17, the band 16 is cylindrically supported. 4 for the axis of body 14
It can be transported at an angle of 5 °. Therefore, by rotating the rotating peripheral speed on the outer surface of the plurality of rotating wheels 17 so as to match the traveling speed of the belt 16, the belt 1 is rotated.
6 can be prevented from slipping when it comes into contact with a number of rotating wheels 17, and the strip 16 can be transported in a direction inclined by 45 ° with respect to the axis of the cylindrical support 14. The number of rotating wheels 1 arranged along the spiral moving speed of the band-shaped material 16 and the spiral surface
7, the belt-shaped material 16 and the large number of rotating wheels 1
No friction occurs between the belt 1
The traveling direction of the strip 16 can be changed, for example, by 90 ° while the 6 makes a half turn along the helical surface.

The embodiment of the present invention has been described above.
The present invention is not limited to this embodiment. For example, in the present embodiment, a plurality of fixed shafts are fixedly supported on the outer surface using a cylindrical body, but if the envelope formed by a large number of rotating wheels is a spiral surface, a cylindrical A support member other than the torso may be used. In the present embodiment, the angle of change in the traveling direction of the strip is 90 °, but the present invention is applicable to other angles. In this case, the angle at which a large number of rotating wheels are mounted on the fixed shaft may be changed.

[0022]

According to the apparatus for changing the traveling direction of a belt-shaped material according to the first to third aspects of the present invention, a large number of rotating wheels that rotate in the same direction as the traveling direction of the belt-shaped material are arranged on a spiral surface, and a large number of rotating wheels are arranged. Since a rotation drive mechanism that rotates in synchronization with the traveling speed of the strip is provided, there is no inconsistency between the peripheral speed of the rotating wheel and the traveling speed of the strip. Eliminates quality problems caused by slip flaws. Further, since no slip occurs on the contact surface between the rotating wheel and the band-shaped material, the rotating wheel is hardly worn and the maintenance frequency is significantly reduced.

In this traveling direction changing device, the rotating wheel itself is driven to rotate, so that the tension value at the time of transporting the band material can be kept low, and the tension of the band material at the entrance side and the exit side of the traveling direction changing device can be reduced. Since there is almost no difference in the tension, even if the bridging device before and after the traveling direction changing device is omitted, the tension can be kept low and stable, and the configuration of the entire equipment becomes compact,
The occupied space can be reduced, and effects such as lower equipment costs can be expected. In addition, since the tension of the strip is received by the base frame via a number of rotating wheels, fixed shafts and bearings, the conveyance is limited by the tension of the strip, and the shape, tension fluctuation, and meandering of the strip are affected. I do not receive.

In particular, in the apparatus for changing the traveling direction of the belt-shaped material according to the second aspect, a fixed shaft on which a large number of bearings for supporting a large number of rotating wheels obliquely along the traveling direction of the belt-shaped material is disposed. A drive shaft that is eccentrically provided inside the shaft and drives each of the rotating wheels via a meshing power transmission mechanism, and a plurality of fixed shafts are arranged along the inside of the spiral surface, and each fixed shaft is fixed. One end of each drive shaft provided on the shaft is connected to a rotation drive mechanism that simultaneously rotates each drive shaft, so that by using a drive source such as an electric motor for the rotation drive mechanism, the rotating wheels are always rotated. The web can be rotated in synchronization with the traveling speed of the web.

According to a third aspect of the present invention, the meshing power transmission mechanism includes a ring gear provided on one side of a rotating wheel mounted on the bearing portion, and a gear meshing with the ring gear and the drive shaft. Since it has an external gear attached, a number of rotating wheels can be synchronously rotated in synchronization with the traveling speed of the band material, and when the shape of the band material is not uniform or the traveling speed of the band material is It can respond to fast cases.

[Brief description of the drawings]

FIG. 1 is a plan view of a device for changing a traveling direction of a strip according to an embodiment of the present invention.

FIG. 2 is a side view of the traveling direction changing device for the band-shaped material.

FIG. 3 is a plan sectional view of a rotating wheel provided in the traveling direction changing device for the band-shaped material.

FIG. 4 is a perspective side view of a rotating wheel portion provided in the traveling direction changing device for the belt-shaped material.

FIG. 5 is a plan view of a traveling direction changing device according to a conventional example.

FIG. 6 is a front sectional view of a rotating wheel provided in the traveling direction changing device.

[Explanation of symbols]

10: traveling direction changing device, 11: base mount, 12, 1
3: bearing, 14: cylindrical support, 15: fixed shaft, 16:
Belt-like material, 17: rotating wheel, 18: drive shaft, 19: rotary drive mechanism, 20, 21: mounting stand, 22: cylindrical body, 2
3: one end, 24: other end, 25, 26: support shaft,
27: bearing portion, 28: bevel shaft sleeve, 29: rotating wheel bearing, 30: bearing, 31: drive shaft bearing, 32: small gear, 3
3: intermediate gear, 34: drive gear, 35: output shaft, 36:
Electric motor, 37: ring gear, 38: external gear, 39: through hole, 40: notch

Claims (3)

[Claims] 1. A traveling direction changing device for a belt-like material for winding a belt-like material around a spiral surface and changing the traveling direction of the belt-like material, wherein the traveling direction of the belt-like material is changed in the same direction as the traveling direction of the belt-like material along the spiral surface. An apparatus for changing the traveling direction of a strip material, comprising a plurality of rotating wheels arranged to rotate, and a rotation drive mechanism for rotating the plurality of rotating wheels in synchronization with the traveling speed of the strip material. 2. The apparatus according to claim 1, wherein a fixed shaft is provided with a plurality of bearings that obliquely support the plurality of rotating wheels along the traveling direction of the strip. A drive shaft that is eccentrically provided inside the fixed shaft and drives each of the rotating wheels via a meshing power transmission mechanism, and a plurality of the fixed shafts are arranged along the inside of the spiral surface. Wherein one end of each of the drive shafts provided on each of the fixed shafts is connected to the rotary drive mechanism for simultaneously rotating the respective drive shafts. . 3. The apparatus according to claim 2, wherein the meshing power transmission mechanism includes a ring gear provided on one side of the rotating wheel attached to the bearing.
A belt-shaped material traveling direction changing device, comprising: an external gear meshed with the ring gear and attached to the drive shaft.