JPH0686261B2 - Slitter winding device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a slitter for continuously cutting a wide metal strip such as a cold-rolled steel sheet into a plurality of narrow slit-shaped strips. The present invention relates to a slitter winding device that simultaneously winds a coil into a coil.

[Prior Art] In a slitter, the metal strip is unwound from a coil of a wide metal strip, and the metal strip is sheared by a cutter.
Is cut into a plurality of narrow strips, and then these plurality of strips are simultaneously wound on a winding device.

FIG. 4 is a schematic view showing the concept of a slitter, and FIG. 5 is a front view showing a conventional slitter winding device.

The metal strip 2 is unwound from the wide metal strip coil 1 and the metal strip coil 2 is cut by the cutter 3 into a plurality of narrow strips 4.
Disconnect. Each strip 4 is directly guided to the winding device 6,
They are separated from each other by the separator 5 and wound on the unwinding shaft of the winding device 6.

In the winding device 6, the winding shaft 11 is rotatably supported by an appropriate supporting member and is rotationally driven by a driving device (not shown). A plurality of circular ring-shaped winding plates 12 are coaxially fitted on the winding shaft 11 and are arranged at regular intervals. The winding plate 12 is slidably rotatable with respect to the winding shaft 11.

The separator 5 is a separator shaft 13 and the separator shaft 13
It is composed of a plurality of separator plates 14 which are fitted and fixed vertically to the winding shaft 11, is arranged above the winding shaft 11, and is placed on the strip 4 wound around the winding shaft 11. Normally, the separator shaft 13 is lined with rubber so as not to scratch the strip 4. Further, the separator plate 14 is made of a metal plate and is subjected to quenching treatment.

In the conventional slitter thus configured, the wide metal strip 2 is cut into a plurality of strips 4 by the cutter 3, and then the plurality of strips 4 are sent to the winding device 6. Then, the plurality of strips 4 are separated by the separator plate 14 of the separator 5, and each strip is wound around each winding plate 12 arranged on the winding shaft 11 to form a strip coil 15. . In this case, the wide metal strip 2 such as the cold-rolled steel sheet before cutting has an uneven thickness in the width direction. Therefore, the thickness of the strip coil 15 wound around the winding plate 12 is different for each strip coil 15. For this reason, since the coil radii of the respective strip coils 15 are different, the winding plate 12 is rotated relative to the winding shaft 11 to maintain the same rotational peripheral speed of each winding plate 12. . That is, in the conventional winding device, the winding plate 12 slips with respect to the winding shaft 11 to suppress variations in the tension of the respective strips 4 at the time of winding, whereby the strip coil 15 is wound. A uniform pulling force is achieved.

[Problems to be Solved by the Invention] However, in the conventional slitter winding device,
Although the uniformity of the winding tension for each strip coil 15 is secured for the time being, there is a problem that it cannot be said to be sufficient. That is, in the conventional winding device, the separator shaft 13 is the winding shaft.
Directly above 11 and wound on the winding shaft 11 coil 15
And the separator shaft 13 are in contact with each other. For this reason, the winding plate
As the strip 4 is wound around the separator 12, the separator shaft 13 contacts only the strip coil 15 having the largest diameter, and the separator shafts 13 do not contact the other strip coils 15.
Therefore, the winding tension varies between the coil 15 that is in contact with the separator shaft 13 and the coil 15 that is not in contact with the separator shaft 13.

The present invention has been made in view of such problems,
It is an object of the present invention to provide a slitter winding device that can reliably reduce variations in winding tension and can obtain a high-quality strip material.

[Means for Solving the Problems] A winding device for a slitter according to the present invention is a winding device for a slitter, which simultaneously winds a plurality of strips obtained by cutting a metal band with a cutter into a coil shape. The take-up shaft, a plurality of take-up members which are slidably rotatably mounted on the take-up shaft and take up each strip, and the interposition between the plurality of strips before being taken up by the take-up member. A separator that guides each strip, a separator arm that swings around a fixed shaft, and the separator is attached to the tip of the fixed shaft, and the separator arm swings to drive the separator and the winding shaft. A driving means for adjusting the distance between them, a sensor for detecting the distance between the strip wound on the winding member, and a sensor support member for moving the sensor together with the separator in cooperation with the separator arm. And the detection of the sensor Control means for controlling the position of the separator via the driving means based on the result.

[Operation] In the present invention, the sensor detects the position of the strip coil wound around the winding member as the distance between the sensor and the strip, and the control means detects the separator based on the detection result of the sensor. Control the position. That is, the control means swings and drives the sensor arm via the driving means so that the distance between the sensor and the strip as the detection result of the sensor falls within a predetermined range, whereby the separator and the winding shaft are driven. Adjust the distance between. Specifically, as the strip material is wound around the winding member of the winding shaft, the outer shape of the strip coil becomes large. Then, the distance between the sensor and the strip becomes short.Therefore, in order to prevent this distance from becoming shorter than the predetermined range, the control means is arranged in the direction in which the separator attached to the tip of the separator arm moves away from the winding shaft. Then, the separator arm is swung through the driving means. Since the sensor moves along with the separator in cooperation with the separator arm by the sensor support member, the separator and the sensor are always positioned in a fixed positional relationship with respect to the strip wound around the winding member. In this way, the separator is not supported on the strip coil wound on the winding shaft, but is placed in a state of floating with respect to the strip coil via the separator arm. On the other hand, the winding member slides and rotates relatively individually with respect to the winding shaft according to the coil height of the strip coil due to the nonuniformity in the width direction of the wide metal strip. In the present invention, by both of these actions, variations in the tension of the strip wound around each winding member can be suppressed, and variations in the winding tension of each strip coil can be avoided.

In this case, in the present invention, the sensor is interlocked with the separator arm and moves so as to be separated from the strip wound on the winding member. That is, this sensor does not perform absolute measurement of the winding height of the strip coil, but is used so that the distance to the strip coil is substantially constant.
Therefore, a sensor having relatively high resistance to electrical noise, such as a proximity switch, can be used. Also, there is no error accumulated in the measured value,
Highly accurate measurement is possible.

The angle between the strip fed from the cutter and the peripheral surface of the strip coil wound on the winding plate changes according to the winding height of the strip coil, but this angle is approximately By correcting so as to be constant, it is possible to further reduce the variation in tension. Therefore, it is preferable to provide a deflour, whose position changes depending on the winding height of the strip coil, at a position closer to the cutter than the separator.

[Embodiment] Next, an embodiment of the present invention will be described with reference to the accompanying drawings.

FIG. 1 is a plan view showing a slitter winding device according to an embodiment of the present invention.

A plurality of winding plates 12 are slidably and rotatably arranged on the winding shaft 11 as in the conventional case. Separator arms 16 are arranged above both ends of the winding shaft 11 in the longitudinal direction. The pair of separator arms 16 are fixed to a shaft 17 arranged in parallel with the winding shaft 11.
17 is rotatably supported by a side plate (not shown) of the apparatus body. A separator shaft 13 is fixed between the front ends of the separator arms 16 in parallel with the winding shaft 11. And
A plurality of separator plates 14 are arranged on the separator shaft 13 so as to fit vertically to the separator shaft 13. Further, the drive shaft 23 of the cylinder 23 is provided at the rear end of the separator arm 16.
b are rotatably connected to each other. This cylinder 23
The base end portion thereof is rotatably supported by the side plate of the apparatus body via the shaft 23a. Therefore, the separator arm 16
Is driven by a cylinder 23 and can swing about a shaft 17 as a central axis. The cylinder 23 is drive-controlled by a control device (not shown).

In the vicinity of the tip end of each separator arm 16, a deflour arm 18 extending in the cutter direction is rotatably attached via a shaft 18a. A deflor 20 is rotatably arranged in parallel with the take-up shaft 11 between the tips of the pair of deflor arms 18. The debroll arm 18 is a portion pivotally supported by the separator arm 16, and is fixed to the rod 21 so that the defroll arm 18 and the rod 21 form a constant angle. The turnbuckle 22 has its base end rotatably attached to the side plate of the apparatus main body at a position slightly above the shaft 17 via the shaft 22a, and the tip end of the turnbuckle 22 is attached to the rod 21. They are rotatably connected to each other. Therefore, as the separator arm 16 rotates, the position of the deflor 20 is changed.

An arm bar 24 is fixed to the shaft 17 so as to form a predetermined angle with the shaft 17. The first and second sensor arms 26, 2 are provided below the separator arm 16.
7 is swingably arranged around the swing shafts 26a, 27a,
The tip of the arm bar 24 and one end of the first sensor arm 26 are connected via a turnbuckle 25. The swing shafts 26a and 27a are fixed to the side plates of the main body of the apparatus. The other end of the first sensor arm 26 extends above the winding shaft 11, and the substantially central portion of the sensor 28 is rotatably locked at this end. In addition, the second sensor arm 27
Has one end extending to the vicinity of the sensor locking portion of the first sensor arm 26, and the upper portion of the sensor 28 is rotatably locked at this end. Therefore, the sensor 28 moves above the rewind shaft 11 as the separator arm 16 rotates.
The take-up sensor 28 is a proximity switch and outputs a predetermined detection signal when the strip coil approaches a predetermined distance.

Next, the operation of the apparatus of this embodiment will be described.

When the winding of the strip 4 is started, as shown in FIG. 1, the winding sensor 28 is located slightly above the winding plate 12, and the separator shaft 13 is slightly above the winding shaft 11 on the cutter side. Is located in. At this time, the deflor 20 is hardly in contact with the strip 4.

The strips 4 cut from the wide metal strip to a predetermined width by the cutter are separated from each other by the separator plate 14 and are wound up.
Take up to 12. When the strip 4 is wound around the winding plate 12 and the diameter of the strip coil increases, the sensor 28 detects this and outputs a detection signal. Then, the control device drives the cylinder 23 to rotate the separator arm 16 and moves the separator shaft 13 located at the tip of the separator arm 16 upward. With the rotation of the separator arm 16, the deflor 20 and the sensor 28 also move.

FIG. 2 shows the deflourment 20 associated with the rotation of the separator arm 16.
It is a schematic diagram which shows the locus | trajectory of the movement of. Separator arm including separator shaft 13 and separator plate 14 so that separator 5 is lifted, that is, separated from winding shaft 11.
When the rocker 16 swings, the deflor arm 18 connected to the separator arm 16 via the shaft 18a also rises. In this case, the deflor arm 18 is fixed to the rod 21 at a predetermined angle, and the rod 21 turns the turnbuckle 22.
Since it is connected to the shaft 22a whose position is fixed via the link mechanism of the turnbuckle 22 and the rod 21, the deflor arm 18 is attached to the strip 4 regardless of the rotation angle of the separator arm 16. It rises at an almost constant angle. As a result, the separator 5 and the defluor 20
Irrespective of the height of the strip coil 15 wound on the winding shaft 11,
It is always arranged in a predetermined posture with respect to the strip 4 wound around the winding shaft 11. In this way, as the strip coil 15 becomes higher, the separator arm 16 rotates and the separator 5
And the position of the deflor 20 changes as shown by the broken line. The angle formed by the strip 4 and the peripheral surface of the strip coil 15 is maintained substantially constant.

FIG. 3 shows a take-up sensor 28 according to the rotation of the separator arm 16.
It is a schematic diagram which shows the locus | trajectory of the movement of.

When the separator arm 16 rotates counterclockwise in FIG. 1 to raise the separator 5, the first sensor arm 26 also rotates counterclockwise about the shaft 26a via the arm bar 24 and the turnbuckle 25. . As a result, the sensor 28 attached to the tip of the first sensor arm 26 rises, but the tip of the second sensor arm 27 that rotates about the shaft 27a is locked to this sensor 28. Because
Due to the synergistic action of the first and second sensor arms 26 and 27, the sensor 28 always rises with its detection direction directed toward the strip coil wound around the lower winding shaft 11.

Since the sensor 28 rises while keeping its posture constant, the sensor 28 can always detect the distance from the strip coil 15 regardless of the rotation angle of the sensor arm 26. Then, when the strip coil 15 is expanded in diameter and the upper end of the sensor 28 approaches a predetermined range, the sensor 28 outputs a signal to the control device to drive the cylinder 23 to rotate the separator arm 16 counterclockwise as shown in the drawing. Let As a result, the separator 5 rises, and the deflour 20 and the sensor 28 rise accordingly. When the detection signal of the sensor 28 indicates that the distance from the strip coil 15 has become larger than the predetermined range, the control device stops the driving of the cylinder 23. In this way, the control device intermittently operates the cylinder 23 based on the detection signal of the sensor 28 to arrange the separator 5 and the like at a predetermined position. The control mode of the control device may not be intermittent as described above, but may be one in which the cylinder 23 is continuously driven to continuously raise the separator 5 and the like.

In this way, the apparatus of this embodiment arranges the separator shaft 13 in a floating state by always separating it from the strip coil 15, and makes the angle between the strip 4 and the strip coil 15 substantially constant by the deflow 20. Hold. As a result, in combination with the slip mechanism of the winding plate 12, it is possible to suppress variations in the tension of the strip 4 wound around each strip coil 15, and to make the winding tension of the strip coil uniform. be able to.

EFFECTS OF THE INVENTION As described above, according to the present invention, the winding member slides and rotates relative to the winding shaft, the sensor detects the coil height, and the control unit controls the sensor. Since the separator is moved so as to always have a predetermined positional relationship with the strip coil wound on the winding member based on the output, variation in tension of the strip wound on the winding member is suppressed,
The winding tension of a plurality of strip coils can be made uniform.

[Brief description of drawings]

FIG. 1 is a plan view showing a winding device of a slitter according to an embodiment of the present invention, FIG. 2 is a schematic view showing a locus of movement of a deflour accompanying rotation of a separator arm, and FIG. FIG. 4 is a schematic diagram showing the locus of movement of the winding sensor due to the rotation of the separator arm, FIG. 4 is a schematic diagram of the slitter,
FIG. 5 is a front view showing a conventional slitter winding device. 1; metal strip coil, 2; metal strip, 3; cutter, 4; strip, 5; separator, 6; winding device, 11; winding shaft, 12; winding plate, 13; separator shaft, 14; separator Plate, 15; strip coil, 16; separator arm, 17; shaft, 18; deflur arm,
20; Deflor, 21; Rod, 22, 25; Turnbuckle, 2
3; cylinder, 24; arm bar, 26, 27; sensor arm, 28;
Take-up sensor

Claims (2)

[Claims] 1. A winding device for a slitter, which winds a plurality of strips obtained by cutting a metal strip with a cutter at the same time into a coil shape. A plurality of winding members provided for winding each strip, a separator for guiding each strip interposed between the strips before being wound on the winding member, and a fixed shaft as a center A separator arm that swings as the tip end and the separator is attached to the tip end of the separator arm; and a driving unit that swings the separator arm to adjust the distance between the separator and the winding shaft.
A sensor for detecting a distance between the winding member wound on the winding member and a sensor supporting member for moving the sensor together with the separator in association with the separator arm;
A slitter winding device comprising: a control unit that controls the position of the separator through the driving unit based on the detection result of the sensor. 2. A deflow roller that rolls on the strip on the cutter side of the separator and a deflow support member that moves the deflow wheel in conjunction with the separator arm. The slitter winding device described above.