JP2000247517A - Changing device for progress direction of band-like material - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a progress direction changing device for a band-like material for adjusting the floating quantity of a band-like material by simple constitution. SOLUTION: This band-like material progress direction-changing device has circular and slitlike gas nozzle 13 and 14 in the spiral band-like range of the opposite surface to a band-like material 17 forming the curved surface of a tubular floater 19. In this case, the device is equipped with a masking means 23 for adjusting the areas of the nozzles 14 provided on the IN and OUT parts of the material 17 to the spiral band like range, a floating quantity detector for detecting the floating quantity of the material 17 relative to the external surface of the floater 10, and a control device 16 for adjusting the means 23 so as to increase the floating quantity of the material 17 in the IN and OUT parts than that of the material 17 in the intermediate part of the spiral band like range based on a detected value by the detector.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a traveling direction changing device for continuously supplying a strip such as a steel plate or an aluminum thin plate from one processing line to another processing line in the next step.

[0002]

2. Description of the Related Art In feeding a strip of a steel sheet or a thin aluminum sheet from one processing line to the next processing line while changing the traveling direction, the strip is spirally advanced on a cylindrical floater to change the traveling direction. Patent No. 2735934
Japanese Patent Laid-Open Publication No. Hei 4-127775, Japanese Patent Laid-Open Publication No. Hei 9-226999, and the like. In the following, for convenience of explanation, these will be referred to as Conventional Examples 1, 2, and 3, respectively, in this order.

In each of these conventional devices, a large number of gas outlets are provided in a spiral region of a curved surface of a semi-cylindrical or cylindrical floater to discharge gas, and a strip is made to advance in a spiral direction at the gas discharge portion. In the third conventional example, an integrated edge mask that adjusts the area of a gas ejection port ejected from a cylindrical floater is provided on the outside of the cylindrical floater. Or a device provided inside is proposed.

However, in the case of the apparatus of the prior art 3, when gas is jetted uniformly from the entire gas jet port of the cylindrical floater, the gas jet port is swept to the strip-shaped material floating spirally around the cylindrical floater. However, there is a problem that the gas ejection amount is insufficient at both ends of the advancing area provided with, that is, at the entrance and exit to the cylindrical floater, and the strip material is likely to come into contact with the surface of the cylindrical floater.

In order to solve this problem, in the conventional example 1, as shown in FIG. 6, a large number of uniform circular gas outlets 51 are provided in the spiral curved surface area of the cylindrical floater 50, and FIG. As shown, the interior of the cylindrical floater 50 is divided by a partition 52 into a curved surface section 53 and a tangential section 54, and these two sections 53, 54 are respectively supplied with gas supply pipes 55, 56.
Discloses an apparatus configured to connect to individual gas supply blowers and supply a gas having a higher pressure than the curved surface section 53 to the tangential section 54 to increase the levitation force of the inlet and outlet.

Further, in the conventional example 2, as shown in FIG.
A slit-shaped gas outlet 6 having a large aperture ratio at both ends of the spiral curved surface area of the cylindrical floater 50, that is, at the entrance and the exit.
1 and a number of circular gas outlets 62 having a slightly lower aperture ratio in the middle of the helical curved surface area, so that a gas with a constant pressure supplied from one gas supply blower through a gas supply pipe 63 is provided. By increasing the gas ejection amount from the slit-shaped gas ejection ports 61 at the entrance and exit sections to be larger than that in the area of the ejection port 62 at the intermediate section, a device having a configuration to increase the buoyancy of the entrance section and the exit section is provided. Has been disclosed.

[0007]

However, in the apparatus disclosed in the prior art 1, the weight of the cylindrical floater 50 increases due to the attachment of the internal partition wall 52, and internal work such as maintenance becomes difficult. Since a series of gas supply blowers is required, there is a problem that the equipment becomes large and the cost increases.

The apparatus disclosed in Conventional Example 2 has a configuration in which a slit-shaped gas outlet 61 and a large number of circular gas outlets 62 are provided on a cylindrical floater 50 at a constant opening ratio per unit area. Because of this, the slit-shaped gas ejection port 61
Cannot increase or decrease the gas injection amount on the side. For example, assuming a case where the strip material 57 processed on the line is changed to another strip material having a different width and thickness, and the operation is performed, in order to cope with the changed strip material, It is necessary to adjust the amount of gas ejected from the slit-shaped gas ejection ports 61 at the entrance and exit to adjust the floating amount at the entrance and exit. However, the device of the conventional example 2 cannot perform such adjustment. was there.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and it is an object of the present invention to provide a device for changing the traveling direction of a strip which can adjust the floating amount of the strip with a simple structure.

[0010]

The present invention employs the following means in order to solve the above-mentioned problems. That is, the traveling direction changing device for a band-shaped material according to claim 1 is a traveling direction changing device for a band-shaped material having a gas ejection port in a spiral band-shaped range of a band-shaped material facing surface that forms a curved surface of a cylindrical floater, Mask means for adjusting the gas ejection port area of the gas ejection ports provided at the entrance and exit of the band material with respect to the spiral band-like area, and floating for detecting the floating amount of the band material with respect to the outer surface of the cylindrical floater The amount of floating of the band-shaped material at the entrance and the exit, based on the value detected by the floating amount detecting means, is larger than the amount of floating of the band-shaped material at the middle part of the spiral band-shaped range. Control means for adjusting the mask means as described above.

According to this, the present apparatus can be said to be of a relatively simple configuration having substantially only the mask means, the flying height detecting means, and the control means. It is possible to accurately control the floating amount of the strip. That is, when the detected value of the flying height detecting means and the control means determine that the flying height at the entrance and the exit is smaller than the flying height at the middle of the range of the helical strip, the mask means Only by adjusting the area of the jet outlet, the gas jetting amount at the entrance and the exit can be controlled, and as a result, it is possible to avoid the situation where the strip material comes into contact with the cylindrical floater.

Further, in the apparatus for changing the traveling direction of the belt-shaped material according to the present invention, the mask means is provided at an intermediate portion of the spiral belt-shaped area.

According to this, if an appropriate set value is set in advance for the flying height at the intermediate portion of the spiral band range, if the flying height is lower than this set value, it is increased. Such a measure can be taken. That is, in this case, it is possible to avoid contact between the band-shaped material and the cylindrical floater even in the intermediate portion,
Since the flying heights of the entrance and the exit take a value larger than the set value, in the entire spiral band range,
This allows stable advancement of the strip.

According to a third aspect of the present invention, in the apparatus for changing a traveling direction of a strip material, the mask means is mounted inside or outside the cylindrical floater, and the floating amount detecting means is provided along an outer surface of the cylindrical floater. Characterized by

According to this, it is possible to more accurately perform the adjustment of the gas ejection port area by the mask means and the detection of the flying height by the flying height detecting means. In particular, if the mask means is mounted on the inner surface of the cylindrical floater, it is possible to avoid contact between the mask means and the strip material in advance, and it is possible to increase the reliability of the operation of the apparatus.

[0016]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a schematic plan view of an apparatus for changing the traveling direction of a strip material according to an embodiment of the present invention, and FIG. 2 is an inner surface development view of the tubular floater of FIG. 3 is a cross-sectional view taken along the line III-III of FIG. 1, FIG. 4 is a side view of a flying height detector portion taken along the line IV-IV of FIG. 3, and FIG. 5 is a flying height VV of FIG. It is a side view of a detector part.

In FIG. 1, a spouting gas supply means 11 is connected to a cylindrical floater 10 by a single connecting pipe 12. On the circumferential surface of the cylindrical floater 10, a large number of circular gas injection ports 13 are provided at an intermediate portion of a spiral band-shaped band 17 traveling area (spiral band-shaped range), and the band 17 in the same band 17 traveling area is provided. A slit-shaped gas outlet 14 is provided at the entrance and the exit of the nozzle. In addition, a plurality of pieces (4 in FIG. 4) are provided at intervals in the axial direction of the cylindrical floater 10 on each of the entrance, exit, and outside of the center of the advance zone of the strip 17.
) Flying height detectors (flying height detecting means) 15, and a control device (control means) 16 is connected to them. The terms "intermediate part" and "central part" introduced above are used under the following definitions. That is, the “intermediate portion” is a term indicating all the regions between the entrance and the exit of the strip 17 in the strip 17 advancing area and indicating the region sandwiched therebetween, and the “central portion” is the “intermediate portion” And a point or an area which is located at an equal distance from the entrance and the exit in the above area.

As shown in FIGS. 4 and 5, the flying height detector 15 is spaced apart from the outer surface of the cylindrical floater 10 at each of the entrance, exit, and center of the zone where the strip 17 travels. It is provided at a predetermined interval on a support beam 18 provided along the surface of the cylindrical floater 10 with the outer surface or the external structure of the cylindrical floater 10 as a support point. In addition, the flying height detector 15
Are provided on each support beam 18 so as to be position-adjustable in the length direction thereof, so that the position can be adjusted according to the plate width of the strip 17. Note that, as the flying height detector 15, for example, an ultrasonic distance sensor or the like can be used.

The inner surface 10 'of the cylindrical floater 10 shown in FIG.
In the figure, reference numerals 10a, 10b, and 10
As shown by c, a quadrant in the circumferential direction of the inner surface 10 'is virtually introduced to make the positional relationship of each device described below clear. On the inner surface 10 'of the cylindrical floater, a plurality of reinforcing members 20 (four in the figure) are arranged at equal intervals in the circumferential direction at equal intervals in the circumferential direction between the equal lines 10a and 10c and about the equal line 10b. ) Is provided. The plurality of circular gas outlets 13 are provided within the space between the reinforcing members 20 and in the spiral belt-like material 17 advancing area, and the above-mentioned inlet and outlet slit-shaped gas outlets 14 are provided outside the reinforcing member 20. And is provided in the zone 17 where the strip 17 travels on the equal lines 10a and 10c.

On both sides of the strip 17 advancing area, there are a plurality of sets (3 per side in the figure) for a circular gas jet 13 area which can slide forward and backward with respect to the strip 17 advancing area. (Set) mask means 21 are provided. The advancing and retreating of the mask means 21 is realized by driving a cylinder 22 provided in each interval of the reinforcing member 20. Further, a mask means 23 for the slit-shaped gas jet port 14 is provided in the same form as the mask means 21 described above. The reciprocating operation of the mask means 23 is realized by driving a cylinder 24 provided outside the reinforcing member 20. The cylinders 22 and 24 corresponding to the mask means 21 and 23 are connected to the control device 16.
In FIG. 2, a simplified illustration is shown in which only the cylinder 24 of the mask means 23 for the slit-shaped gas ejection port 14 is connected to the control device 16.

In FIG. 3, the mask means 21 for the area of the circular gas jet port 13 is provided with a roller or the like along a fixed track 25 arranged in parallel with the inner surface 10 'of the cylindrical floater at an interval. The circular gas ejection port 13 is supported by a movable frame 26 and is driven in synchronization with the cylinder 22.
The area of the gas outlet in the area can be adjusted.

The masking means 23 at the slit-shaped jet port 14 is provided with a reinforcing member 20 outside the circular gas jet port 13 area.
And a frame 29 movably provided in the length direction via rollers or the like along a lengthwise guide rail 28 provided opposite to the other reinforcing member 27 across the slit-shaped gas ejection port 14. , And the area of the gas outlet of the slit-shaped gas outlet 14 can be adjusted by the synchronized driving of the cylinder 24.

The flying height detector 15 of the strip 17 is
At the outer position of the strip 17 facing the slit-shaped gas outlet 14 at the inlet and the outlet, and at the outer position of the strip 17 facing the ejected gas at the center of the circular gas outlet 13 area, the cylindrical floaters are respectively provided. It is provided so as to keep a constant interval from the outer peripheral surface of the ten. The specific form relating to this has already been described.

The operation and effects of the apparatus 1 for changing the traveling direction of the strip having the above-described configuration will be described below. When the band-shaped material 17 advances in the spiral direction from the entrance around the cylindrical floater 10 and exits from the exit with a fixed angle of advance, the flying height detectors 15 at the entrance, the center, and the exit are respectively adjusted. At the position, the floating amount from the outer peripheral surface of the cylindrical floater 10 is detected, and this is transmitted to the control device 16.

The control device 16 controls the flying height of the strip 17 at the entrance and the exit to be greater than the flying height at the center based on the detection values of the respective flying height detectors 15, and more preferably the latter. The opening and closing of the mask means 23 for the slit-type gas outlet 14 is adjusted so that the amount becomes 110% or more of the former flying height detection value, and the area of the gas outlet at the outlet 14, that is, the axis of the cylindrical floater 10 is adjusted. Controls the length of slit-type gas ejection in the direction. At this time, the band-shaped material 1 in the center part
When the flying height of the sample No. 7 is smaller than the set flying height, the control device 16 automatically controls the gas supply amount of the gas supply device 11 so as to increase the central flying height to the set flying height, and then described above. , Automatic control of the flying height at the entrance and the exit can be performed.

In the device for changing the traveling direction of the strip 17 of this type, the floating amount of the inlet and outlet portions is maintained at 110% or more of the floating amount of the central portion so that the strip 17 at the inlet portion and the outlet portion can be connected to the cylinder. A sufficiently safe operation can be performed such that contact with the outer surface of the floater 10 cannot occur. Further, according to the above, the floating amount in the central portion or the intermediate portion can be appropriately controlled.
Contact between 7 and the outer surface of cylindrical floater 10 is not likely to occur in its entire range. Furthermore, as is clear from the above description, this stable advancement of the strip 17 is realized by a simple configuration, and therefore,
ADVANTAGE OF THE INVENTION According to this invention, the traveling direction change apparatus of a cheap strip | belt-shaped material can be provided.

In the description of the above embodiment, in FIGS. 2 and 3, the mask means 2 in the area of the circular gas ejection port 13 will be described.
1 is divided into three parts, but the three-part mask means 21 are integrated, and the slit-type gas jet port 1 is formed.
4 may be configured such that only the mask means 23 is separate from the integrated mask means 21. In this case, it is apparent that the same operation and effect as described above can be obtained.

Further, in the above embodiment, a total of three flying height detectors 15 are provided at the entrance, exit, and center of the zone where the strip 17 travels. However, the present invention is not limited to this. For example, the flying height detector 1 related to the inside of the traveling area of the strip 17 other than the entrance and the exit.
5, that is, in some cases, a plurality of circular gas outlets 13 (for the intermediate portion) may be provided. In this case, an average value is obtained from the respective detection values of the plurality of flying height detectors 15, and control is performed such that the flying height of the strip 17 at the entrance and the exit is increased by a factor of 1.1. I just need.

[0029]

As described above, the apparatus for changing the traveling direction of the belt-shaped material according to the first aspect has a relatively simple structure including the mask means, the flying height detection means, and the control means. In addition, the floating amount of the band-shaped material at the protrusion can be controlled accurately and appropriately. That is, according to the present invention, it is possible to provide an apparatus for changing the traveling direction of a belt-shaped material, which makes it possible to carry out a stable operation with almost no risk of the strip-shaped material and the cylindrical floater coming into contact with each other. Also,
Since this is a relatively simple configuration as described above, the cost of the device can be kept low.

Further, in the belt-moving direction changing device according to the second aspect, since the mask means is provided in the middle portion of the spiral belt-shaped range in the cylindrical floater, an appropriate band-like material is also provided in the middle portion. Can be secured. From this, it is also possible to more stably advance the above-mentioned band-like material at the entrance and the exit, and as a result, the stable progression of the band-like material over the entire spiral band-like range is realized. can do.

According to a third aspect of the present invention, in the apparatus for changing the traveling direction of the strip material, the mask means is mounted inside or outside the cylindrical floater, and the floating amount detecting means is provided along the outer surface of the cylindrical floater. Accordingly, the adjustment of the gas ejection port area by the mask means and the detection of the flying height by the flying height detecting means can be performed more accurately than those described above.

[Brief description of the drawings]

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

FIG. 2 is a developed view of the inner surface of the device for changing the direction of movement of the strip shown in FIG. 1;

FIG. 3 is a sectional view taken along line III-III shown in FIG.

FIG. 4 is a side view of the flying height detector IV-IV shown in FIG. 3;

FIG. 5 is a side view relating to a flying height detector of arrow VV shown in FIG. 3;

FIG. 6 is a schematic plan view of a conventional strip-moving-direction changing device.

FIG. 7 is a cross-sectional view of the device for changing the direction of travel of the strip-shaped material shown in FIG. 6 as viewed from the axial direction.

FIG. 8 is a schematic plan view of a strip-shaped member traveling direction changing device having a form different from those of FIGS. 6 and 7.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Cylindrical floater 10 'Inner surface of cylindrical floater 13 Circular gas ejection port 14 Slit type gas ejection port 15 Floating amount detector (Floating amount detecting means) 16 Control device (Control means) 17 Strip material 21, 23 Mask means

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Yotoshi Yamashita 1 Kawasaki-cho, Chuo-ku, Chiba City, Chiba Prefecture Inside the Chiba Works, Chiba Works (72) Inventor Tadaaki Octagon 1 Kawasaki-cho, Chuo-ku, Chiba City, Chiba Prefecture Kawasaki Steel Corporation Chiba Works (72) Inventor Masaya Toki 1 Kawasaki-cho, Chuo-ku, Chiba City, Chiba Prefecture Kawasaki Steel Corporation Chiba Works (72) Inventor Minoru Tazawa 4--6 Kannonshinmachi, Nishi-ku, Hiroshima Hiroshima Prefecture # 22 Inside the Mitsubishi Heavy Industries, Ltd.Hiroshima Plant (72) Inventor Etsuro Hirai 4--22 Kannon Shinmachi, Nishi-ku, Hiroshima, Hiroshima Prefecture Inside Mitsubishi Heavy Industries, Ltd.Hiroshima Research Institute (72) Inventor Atsushi Higashio, Nishi-ku, Hiroshima, Hiroshima Shinmachi 4-chome 6-22 Mitsubishi Heavy Industries, Ltd. Hiroshima Research Laboratory F-term (reference) 3F103 AA05 BC01 BC04 BC10 BC11 3F104 AA05 FA19 GA06

Claims (3)

[Claims] 1. A device for changing the traveling direction of a strip having a gas ejection port within a spiral band of a strip-facing surface that forms a curved surface of a cylindrical floater, wherein the belt has an entrance into the spiral strip. A mask means for adjusting a gas ejection area of a gas ejection port provided at an outlet part, a floating amount detecting means for detecting a floating amount of the strip material with respect to an outer surface of the cylindrical floater, and the inlet part and the outlet part. Control means for adjusting the mask means so that the floating amount of the band-shaped material is larger than the floating amount of the band-shaped material in the middle part of the spiral band based on the value detected by the floating amount detecting means. A traveling direction changing device for a strip-shaped material, comprising: 2. The apparatus according to claim 1, wherein said masking means is provided at an intermediate portion of a range of said spiral strip. 3. The strip-shaped material according to claim 1, wherein said mask means is mounted inside or outside said cylindrical floater, and said floating amount detecting means is provided along an outer surface of said cylindrical floater. Traveling direction changing device.