JPS5935686B2 - Strip processing line - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION This invention changes the strip passing direction in a plane using a device that changes the strip passing direction in a plane, and
The present invention relates to a processing line for strips arranged in a layout such as a character shape, a C shape, an L shape, or the like.

For example, in a conventional steel strip processing line,
The traveling direction of the strip is often limited to a straight line connecting the strip coil unwinding machine and the winding machine, and within a vertical plane that includes the straight line. In such a strip processing line, if the strip processing is complicated or if a large number of processes are to be performed within one process line, the distance between the unwinding and winding machines will inevitably increase. In particular, as a recent trend, various processing steps have been made continuous with the aim of reducing the number of personnel, reducing equipment costs, and increasing equipment capacity. However, in such a case, the length of the equipment (line) inevitably increases. If the line length is long, the working area will be significantly separated, which is disadvantageous in terms of personnel economy.

In addition, there are various drawbacks, such as the need for a long factory building to construct the equipment, which is disadvantageous in terms of construction costs. In order to solve these problems, a means that can change the strip running direction in a plane is required. If the strip running direction can be changed in a plane within the line, the strip processing line will be L-shaped. , U-shape, C-shape, etc., making the line compact. Conventionally, there is a method for changing the strip running direction in a planar manner within a line, for example, by providing a strip free loop in the line and using this free loop to change the strip threading direction in a planar manner. be.

However, when using a free loop, the loop shape is special and the strip must be operated without tension, making control difficult and not particularly suitable for high-speed processing. There is also a method of changing the direction of strip passing in a plane using a conical roll.

This is a method in which the strip is wound around a conical roll to change the traveling direction of the strip in a plane. However, due to the relative slippage between the conical roll surface and the strip, the strip may have streaks. This method cannot be used for strips that are easily affected by surface properties.In addition, this method uses a large number of guide rolls to form a helical path for the strip, and then passes the strip along a helical path to change the direction in which the strip travels in a planar manner. There is.

However, this method also has a drawback in that it is easy to cause scratches on the surface of the strip because relative sliding between the rolls constituting the helical path of the strip and the strip is unavoidable. For these reasons, it has not been possible to construct the strip processing line compactly. This invention solves the problems in the conventional method mentioned above.
An extremely compact strip processing line is constructed using a device that changes the direction of the slop threading at any angle in plane, without causing any relative slippage between the strip and its conveying medium. It was done for the purpose of obtaining. Its characteristic feature is that the strip is wound spirally on the surface of a drum that rotates in proportion to the strip passing speed, and there are numerous strada plates or endless plates fixed in the circumferential direction of the drum and movable in the axial direction. This is a strip processing line using a strip passing direction changing device provided with a belt or an endless chain. DESCRIPTION OF THE PREFERRED EMBODIMENTS The strip processing line according to the present invention will be described in detail below based on embodiments with reference to the drawings. FIG. 1A shows the principle of an apparatus for changing the traveling direction of a strip to any direction in a plane within its processing line.

In this figure, 1 is a rotating drum, 2 is a strip, and the strip 2 is spirally wound around the rotating drum 1. The range in which the strips 2 are wrapped around the rotating drum 1 is between A and B in FIG. 1 (ACf), and this figure shows the state when the wrapping angle is 360A. Here, it is assumed that while the strip 2 is wound around the rotating drum 1, tension is applied to the strip 1 to move the strip in the direction of the arrow A and the opening.

If the rotating drum 1 is stationary with respect to the strip 2, the strip 2 will slide along the surface of the rotating drum 1. The rotating drum 1 is rotated around its axis 3 in the direction of arrow C and moved in the axial direction (arrow D), and the rotational speed of the rotating drum 1 at that time V2$:5 and the axial direction are When the moving speed V1 is made to match the threading speed V of the strip blade and a constant value determined by the angle of incidence α of the strip 2 on the rotating drum 1, the rotating drum 1
surface and the strip 2 are relative to each other, allowing the strip 2 to be advanced in the direction of arrow A and the mouth without causing any sliding. FIG. 1B shows the points A and B where the strip 2 contacts the rotating drum 1 (in FIG. It shows a cut along the generatrix of the rotating drum 1 that passes through the generatrix of the drum 1 (which is on the same generatrix of the drum 1).

In this figure, the chain line connecting points A and B is the locus of the center line of the strip 2 wrapped around the rotating drum 1.
Since the center line of the strip 2 wrapped around the rotating drum 1 draws a "spiral," when the rotating drum 1 is developed on a plane, it becomes a straight line connecting points A and B as shown in FIG. 1B. It is clear from FIG. 1A that the strip 2, in the state shown in FIG. As such, the rotating drum 1 must be infinitely long in its axial direction.

The present invention effectively solves this problem of infinite length drums and is embodied in equipment. FIG. 2A shows an embodiment of the present invention.

In this figure, 1 is a rotating drum, 2 is a strip, and 3 is a rotating drum.
4 is a rotating shaft of the rotating drum 1, and 4 is a slider plate, which is fixed in the circumferential direction to the outer circumferential surface of the rotating drum 1, and is fitted in large numbers so as to be freely movable (displaceable) in the axial direction.

Reference numeral 5 denotes a fixed guide that restricts the displacement of the slider plate 4 in the axial direction of the rotating drum, and is provided independently and fixedly on the outer circumference of the rotating drum 1.

Reference numeral 6 denotes a sliding groove of the slider plate 4 carved on the outer periphery of the rotating drum 1.

Reference numeral 7 denotes a shaft of the slider plate 4, and the end of the shaft is fitted into the fixed guide 5 to guide displacement of the slider plate 4 in the axial direction of the rotating drum.

α is the angle of incidence of the strip 2 onto the rotating drum 1, ie the lead angle of the helical spiral, and points A and B indicate the point of incidence and exit of the strip 2 onto the drum 1, respectively. Arrows A and 2 indicate the advancing direction of the strip 2, that is, the direction of threading. The arrow port indicates rotating drum 1
is the direction of rotation at that time. FIG. 2B shows the speed of the strip 2 broken down into a component in the direction of rotation of the rotary drum 1 and a component in a direction perpendicular thereto.

In this figure, a is the speed of the strip 2, a1 is the component of the speed of the strip 2 in the direction of the drum rotation axis 3, and A
2 is a component in the rotational direction of the rotating drum 1. α is the angle of incidence of the strip 2 onto the rotating drum 1. The rotating drum 1 shown in FIG. 2A is driven by a DC motor or the like.

Now, assuming that the speed of the strip 2 is a as shown in FIG. 2B, the rotating drum 1 is rotated in the direction of the arrow at a circumferential speed of A2 by a drive motor or the like. Here A2=A
The 4 groups of 0 slider plates, which is cOsα, are the rotating drum 1.
A large number of sliding grooves 6 are carved in the axial direction of the rotating drum on the surface of the rotating drum.
It is fitted in the rotary drum 1, is slidable in the axial direction of the rotary drum 1 on the surface of the rotary drum 1, and is fixed in the circumferential direction of the rotary drum. The upper surface of the 4 groups of slider plates protrudes from the surface of the rotating drum 1 by an appropriate amount, and as the rotating drum 1 rotates, the upper surface of the 4 groups of slider plates fitted on the surface of the rotating drum 1 forms a rotating cylinder. . Further, the slider plate 4 is fitted onto a fixed guide 5 via shafts 7 at both ends of the slider plate 4, regardless of the rotation of the rotary drum 1. The fixed guides 5 may be located on both sides of each slider plate 4 or only on one side, and each of the fixed guides 5 surrounds the rotating drum 1 to form a loop. With this configuration, the strip 2 enters the slider plate group 4 on the rotating drum 1 from the direction of arrow A, and is suspended from the point A to the point B on the rotating drum 1 via the slider plate 4. Consider the case where it wraps around in a spiral and is then ejected from point B.
When the strip 2 is incident on the rotating drum 1 at a velocity a,
As is clear from FIG. 2B, the velocity component in the rotational direction is A2, that is, AcOsα. At this time, the rotating drum 1 is driven in the direction of the arrow at a rotational speed such that the circumferential speed of the surface of the slide plate 4 on the surface of the rotating drum 1 becomes A2. Furthermore, between the wrapping range (contact range) of the strip 2 on the rotating drum 1 between points A and B, the velocity component of the strip 2 in the direction of the drum shaft 3 is a1, that is, Asinα, so the slider plate between the contact points A and B is It is guided by a fixed guide 5 so as to slide in the axial direction of the rotating drum 1 at a speed a1 as the rotating drum 1 rotates.

The shape of the fixed guide 5 is therefore a "helical spiral" between the contacts A and B, which is determined by the angle of incidence α of the strip 2. Therefore, under the above conditions, point A on the slider plate 4 fitted on the surface of the rotating drum 1
The strip that is incident at the angle of incidence α is carried from contact point A to contact point B on the 4 groups of slider plates, without causing any relative positional deviation (slipping) with the slider plate 4, and eventually the strip 2 The direction of travel can be changed. Thereafter, the slider plate 4, which has separated from the strip 2 at point B, is guided by the fixed guide 5 due to the rotation of the rotating drum 1 and is accelerated in the axial direction of the rotating drum 1 (in the direction of A in FIG. 2). After that, reverse rotation drum 1 axis direction (second direction)
It is re-accelerated in the direction shown in Fig. A) and returns to contact point A. Third
Figure A shows the shape of the fixed guide 5 viewed from a direction perpendicular to the axial direction of the rotating drum.

Points A and B correspond to the entrance and exit points of the strip 2. FIG. 3B shows the locus of the center line of the fixed guide 5 when it is cut open along the generatrix XX of the rotating drum 1 and developed on a plane. The curve shown in FIG. ), the slider plate 4 is
If the threading speed of the strip 2 is constant, the rotating drum moves at a constant speed in the axial direction. In the rotary drum 1, the trajectory of the slider plate 4 in the section B--C--A where the strip 2 is not wrapped is like the curve B--C-A in FIG. 3B. Since the slider plate 4 accelerates between B-C-A, the slider plate can accelerate and decelerate as smoothly as possible between B-C-A due to the mechanical strength of the slider plate 4 and fixed guide 5. It is preferable to use a curve like this. In the embodiment of the method and apparatus for changing the threading direction of the strip in the strip processing equipment according to the present invention, the angle at which the strip 2 is wrapped around the rotating drum 1 is theoretically less than 360 times.

In practice, the winding angle ranges from 06 to 270 degrees. As is clear from Figure 1A, the winding angle is 360.
In the case of , the direction of incidence and the direction of exit of the strip are the same.

When the winding angle is 180, the strip 2 is ejected in a plane parallel to the plane containing the incoming strip 2, and the incoming strip 2 and the outgoing strip 2 open at an angle of exactly 2α when viewed from the plane. ing. Generally, when the winding angle of the strip 2 on the rotating drum 1 is .theta.0, the incoming and outgoing strips lie in two planes that intersect with each other at an angle of .theta.0.

In order to make the incident direction and the exit direction of the strip 2 parallel, it is sufficient to perform 180 windings twice. Therefore, by appropriately selecting the incident angle .alpha. of the strip 2 onto the rotating drum 1 and the winding angle .theta. on the rotating drum 1, it is possible to eject the strip 2 in various directions. 2
If more than one rotary drum 1 is used in combination, the strip 2 can be ejected over a wider range in any direction.

In this embodiment, a large number of slider plates are arranged in the axial direction on the surface of the rotating drum 1, and the rotational force of the rotating drum 1 causes the rotational movement of the slider plate 4 and the rotating drum 1.
The strip 2 on the slider plate 4 is guided in a "swirling spiral" path by making it reciprocate in the axial direction, but of course the mechanism of the rotating drum 1 and the fixed guide 5 may be of other types. can be substituted with For example, instead of using the rotating drum 1, the slider plate group itself is fixed in the radial and circumferential directions around one rotating shaft to form the drum surface so as to be slidable in the axial direction, and the slider plates are guided in the axial direction by a fixed guide. It may also be made to slide.
Furthermore, the reciprocating movement of the slider plates may be performed by a reciprocating device such as a cylinder provided at one or both ends of each slider plate instead of the fixed guide 5. In this case, it is necessary to control the position of the slider plate in the axial direction of the rotating drum by the rotation angle of the slider plate around the rotation axis. Furthermore, since the position of the slider plate in the rotating drum axis direction is determined by the rotation angle of the slider plate, it is also possible to employ a cam mechanism to control the position of the slider plate. Rotating drum 1
Although the drive was assumed to be by a DC motor synchronized with the drive system of the line, the cross-sectional size of the strip was large,
If the strip is under high tension, the frictional force between the slider plate and the strip can also cause the rotating drum to rotate.

In this case, if the reciprocating movement of the slider plate in the axial direction of the rotating drum is also performed by the above-mentioned frictional force, no fixed guide is required in the range where the strip is wound. However, in this case, in the portion where the strip is not wrapped around the slider plate, it is necessary to return the slider plate to the strip incident point position, and therefore it is necessary to guide the slider plate using a fixed guide or the like. Since the slider plate performs rotational movement around the rotating drum axis and reciprocating movement in the drum axis direction at the same time, each slider plate is subject to centrifugal force due to rotational movement, thrust load from the fixed guide due to reciprocating movement, and winding from the strip. bear a load.

As the speed of the strip increases, the loads experienced by each of these slider plates increase in proportion to the weight of each slider plate itself. Therefore, when using the device of the present invention in a high-speed strip line, it is necessary to reduce the weight of the slider plate as much as possible.
For this purpose, it is advisable to increase the number of divisions of each slider plate and to use a light alloy such as aluminum or magnesium as the material. In addition, instead of the slider plate, a strip is wound spirally as shown in FIG. The strip passing direction can also be changed in various plane directions using a device for changing the strip passing direction, which is provided with a movable endless belt or endless chain 3-1.

In Fig. 4, 1 is a rotating drum, 3-1 is an endless chain (or endless belt), 4-1 is a driving wheel,
4-2 is, for example, an endless chain sprocket wheel. The above-described device for changing the direction of strip passing in a plane is applied to a strip processing line to construct a strip processing line as shown in FIG. 5, for example.

In FIG. 5, 101 and 10V are strip unwinding machines, 102 is a strip threading table, and 10
3 is a shear, 104 is a welding machine, and 105 is a strip processing device A.

106, 108, 110, 112, 115, 117 are bridles, 107, 116 are strip accumulators, 109 are strip processing devices B, llll, llV
is a device for changing the direction of strip running in a plane as described above.

113 and 114 are strip processing devices C and 114, respectively.
119 is a threading table, and 120 and 120'' are strip winding machines 121 and 12V are strip coil receiving and discharging conveyors, respectively.

In FIG. 5 and later-described FIGS. 6, 7, and 8, the one-dot chain line indicates the threading locus of the strip. Figure 6 shows the processing line of the strip at C.
It is arranged in a glyph arrangement.

In this figure, 123 is a deflector roll, 122,
Reference numeral 122'' is a device for changing the direction of strip passing in a plane as described above.Other symbols are the same as those shown in FIG. 5.In these embodiments, the strip processing line is Since the U-shaped formation is configured in a C-shaped arrangement, the line length is reduced to about 1/2, and therefore the length of the factory building is halved.

Even if this offsets the increase in the width of factory buildings, construction costs can be significantly reduced. Also, the coil receiving and discharging parts are 1
It is concentrated in one place, the work area is compact, and it is advantageous in terms of personnel economy, and cranes can be used with high efficiency.
The number of cranes can also be reduced. Furthermore, since a long strip processing line can be laid out compactly, space can be used effectively. In the embodiment shown in FIG. 7, a continuous pickling line, which is a strip processing line, is arranged and constructed astride two factory buildings.

In this figure, 131 and 13V are strip coil unwinding machines, 132 is a strip threading table,
133 is a shear for cutting off defective parts at the tip and tail end of the strip; 134, 136, and 155 are strip threading tables; 135 is a welding machine for the strip; 137, 13r, and 15 are
0.15σ is a device that changes the direction of strip running in a plane, as already mentioned. 139 is a strip accumulator on the inlet side of the pickling tank, 141, 142, 143, 14
4, 145 is a pickling tank, 146 is a cleaning tank, 151 is a deflector roll, and 148 is a strip accumulator on the pickling tank outlet side.

138, 140, 147, 149 are bridle rolls,
152 is a side trimmer, 156 and 156' are strip winders, and 157 and 157' are strip coil inlet and outlet conveyors.

Reference numeral 153 designates an oil application device 154 as a shear.

Since the strip processing line shown in this embodiment is arranged and configured as described above, the processing equipment (pickling tanks 141, 142, 143 in FIG. ,144,14
5. Cleaning tank and strip accumulator 139, 148
etc.) out of the main line, and by arranging the strip coil unwinding machine and the strip winding machine, which require dedicated personnel, in a single line, it becomes possible to pool personnel, thus saving labor. .

In this case, pickling tanks 141, 142 placed outside the main line
, 143, 144, 145 and the strip accumulators 139, 148, etc., can be made into a shed instead of a high-strength factory building. The embodiment shown in Figure 8 is similar to the embodiment shown in Figure 7, except that the entry and delivery sections of the strip processing line span two factory buildings. .

The feature of this embodiment is when one long line cannot be accommodated in the space of a factory building, but it can be accommodated by dividing it and distributing it in multiple factory building spaces, or from the viewpoint of material flow. In cases where it is advantageous to distribute the entry section, delivery section, etc. of the strip processing line in multiple factory buildings,
This system is constructed by distributing and arranging strip processing lines using a device that changes the direction of strip passing in a plane. In FIG. 8, 161 and 16V are unwinding machines for the strip coil, 162 is a table for threading, 163 is a shear for cutting off the defective end of the strip, 164 is a welding machine for the strip, 165 is a deflector roll, 167, 169
, 171 and 173 are bridle rolls, 166 is a strip processing device A, 168 and 172 are strip accumulators, and 170 is a strip processing device B. 174 is Siya, 175,175! is a strip winder.

Reference numerals 176 and 176' designate devices for changing the direction in which the strip passes in a plane, as described above.

Since the strip processing line shown in this embodiment is constructed as described above, it has the advantage of being able to effectively utilize the space of multiple buildings in a factory. Figure 9 shows part of the processing equipment in the process line (for example, a row of pickling tanks)
Or, it shows a shortened version of a strip accumulator, etc.

As the speed of equipment increases, each processing equipment that makes up the process line inevitably becomes longer. In addition, strip accumulators are also becoming longer and longer as equipment speeds up, but in this case, the processing equipment or accumulator is divided into a plurality of pieces in the length direction, and these divided pieces are arranged in parallel with each other. The length of the entire process line can be significantly shortened by arranging the terminal end of the strip and the succeeding tip using the device that changes the direction of strip passing in a plane as described above. In FIG. 9, reference numerals 200 and 201 are processing equipment or strip accumulators in a process line, which are divided into two in the length direction and rearranged in parallel on a plane. Note that 203 and 204 are devices for changing the direction in which the strip passes, as described above, and the arrows A and 204 indicate the direction in which the strip travels. On the other hand, it is also possible to arrange and construct a line that enables continuous rolling, for example by connecting a pickling line and an existing cold rolling mill via a strip accumulator.

When a process line is arranged using a device that bends the direction in which the strip passes, in addition to the advantages described above, there are the following advantages.

In other words, the device for changing the direction of strip passing does not only change the direction of strip passing, but because the device is driven, it plays the same role as the priddle roll in the process line. Therefore, when the bridle roll is installed immediately before or after the bridle roll, it is possible to reduce the number of rolls constituting the bridle roll.

[Brief explanation of drawings]

Fig. 1A is a principle diagram of a device that changes the strip in any plane direction within its processing line, Fig. 1B is a developed view of a spiral spiral, and Fig. 2A is a diagram showing the direction in which the strip moves. FIG. 2B is a diagram showing an embodiment of a device that changes the plane at an arbitrary angle in a processing line, and shows the speed of the strip wound around the rotating drum and its circumferential and axial speed components. A diagram showing the relationship, FIG. 3A is a diagram showing the shape of the fixed guide, FIG. 3B is a developed view of the fixed guide, and FIG. 4A is a diagram showing the shape of the fixed guide.
, B is a diagram showing another embodiment of the device for changing the traveling direction of the strip at an arbitrary angle in a plane within the processing line,
5, 6, 7, 8, and 9 are plan layout diagrams showing embodiments of the strip processing line according to the present invention.

Claims (1)

[Claims] 1. In a strip processing line in which the strip is continuously passed between an unwinding machine and a winding machine for processing, one or more bends are provided in the line to change the direction of strip passing when viewed from above, and this A large number of slider plates or endless chains fixed in the circumferential direction of the drum and freely displaceable in the axial direction are attached to the surface of the drum which winds the strip in a helical manner and rotates in proportion to the strip passing speed at the bending part position. A strip processing line characterized in that a strip passing direction changing device is provided.