JPS6028569B2 - Material winding method and device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method and apparatus for winding materials such as hot strips.

In recent years, there has been a demand for winding hot strips into coils with thicker plates than conventional plates.

However, the winding roll used conventionally is as shown in Fig. 1A.
As shown in FIG. 2, the reel has a configuration in which several segments a are arranged on the outside in a nearly circular shape with respect to the center of rotation of the reel, and the thick hot strip b, which is nearly a perfect circle, is wound into a coil.

However, when winding a thick hot strip b onto a reel that is close to a perfect circle, the strip b in the range from the second winding to several windings is bent with a large radius of curvature r as shown in Figure 1B due to the influence of the strip tip c. However, the waist was bent over several rolls, and it could not be flattened with a straightening machine, so in the end, 1
A surplus of 0 scrap was generated.

The present invention was made for the purpose of eliminating such a drawback, and before the leading edge of the material enters between the reel and the wrapper roll, a step is set between adjacent segments of a plurality of segments constituting the reel, and each The present invention relates to a material winding method and an apparatus thereof, characterized in that the material is wound with the leading end of the material positioned on the surface of the segment with the largest and lowest level difference between the segments.

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

The segment (S-
1) (S-2) (S-3) (S-4) respectively in cylinder 2
The reel 1 is configured to be movable in the radial direction by the cylinder 2, and each segment is independently displaced in the radial direction by controlling each cylinder 2.
peripheral speed) can be detected by a detection device (not shown), and each segment (S-1) (S-2) (S-
3) In order to detect the phase of (S-4), the hole days,,Q,day3,day corresponding to each of the above segments (S-1)S-2)(S-3)(S-4) As shown in the figure, the rotation of the phase detection plate 4 and the concession phase detection plate 4, which are arranged so as to be shifted in the radial direction so as to be rotatable in correspondence with the overriding rule 1, determines the hole date. ，
Photocells (PH-1) (PH-2) PH- are provided close to the phase detection plate 4 so that light can pass through in the order of day 2, day 3, and day.
3) A phase detection device 3 for each segment consisting of (PH-4) is provided, and a phase detection plate 4 rotates in accordance with the reel 1.
By passing light through one of the holes, for example, day, a segment (S-1) corresponding to that hole is determined.

Here, the holes provided on the phase detection plate 4, . It is reel 1 that day 2, melon, and ratio are shifted with a phase difference in the radial direction.
When the phase detection plate 4 is rotating corresponding to
4) to prevent simultaneous light passing through the photocell (PH-
1) or (PH-2) or (PH-3) or (PH-4
) so that one of the segments (S
This is to determine the position to which -1) or (S-2) or (S-3) or (S-4) is displaced. Furthermore, until the strip 6 rolled by the rolling mill 5 reaches the pinch rolls 7, there are photocells (PH-A) and (PH-B) arranged to detect the passing of the tip of the strip 6 at two locations. It is equipped with a strip speed detection device that can detect the speed of the strip 6 by calculating the time it takes the strip tip to pass between two points and the distance between the two points. 1 surface velocity, photocell (PH-B) and (PH-1) (P
Input the signals from H-2) (PH-3) and (PH-4), the segment displacement path determined by the strip thickness, etc.
A segment setting mechanism 9 is provided to control each cylinder 2 via an actuating mechanism 8 so as to provide a necessary displacement layer to a predetermined segment, and the tip of the strip 6 is positioned between the wrapper roll 10 and the roll 1. Before entering, the required displacement amount is given to a predetermined segment of the reel 1 segment so that the outer periphery of the reel 1 is approximately shaped like a cow's shell, and the largest displacement is made inward in the radial direction (i.e., the adjacent Wind the strip so that the tip of the strip is located at a predetermined position on the surface of the segment (where the step difference in the segment is the largest). Because of the above purchasing, when the strip 6 rolled by the rolling mill 5 is wound up by the reel 1, first, as shown in FIG. When the tip of the strip 6 reaches a predetermined point b as shown in Fig. 3, it is detected by the photocell (PH-B). A strip speed detection device detects the speed V of the strip 6.

That is, a detected by the photocell (PH-A) (PH-B)
The speed V of the strip 6 is determined by dividing the distance S between point and point b by the time it takes the strip tip to pass from point a to point b.
Calculate. Next, the signal of the photocell (PH-B) when the tip of the strip 6 being conveyed reaches the predetermined point b, and the hole date of any of the phase detection devices 3 of each segment at that time, or T2 or the signal of the photocell (PH-1) or (PH-2) or (PH-3) or (PH-4) through which the light passes through the segment corresponding to the hole through which the light passes. is defined as the standard segment.

Now, for convenience of explanation, as shown in the figure, the hole date of the phase detection device 3,
If light is passing through, the photocells (PH-2) (PH-3) (PH-4) corresponding to other holes 2, 3, and 4
Since the light is blocked, the segment (S-1) corresponding to the hole is determined as the reference segment by the signal from the photocell (PH-1). Also, from the above point b to point c (
The distance S2 from the wrapper roll 10 to the point at which the strip tip enters between the reel and the strip conveyance speed V (this speed is a predictive control of the speed calculated by the strip speed detection device) and the reel. Which segment (S-1), (S-2), (S-3), or (S-4) has a displacement amount of 8,, depending on the surface distance d and rotation speed (surface speed) (Vr) of 1? 62, 63, or 64 is determined, and the amount of displacement 6 of each segment is determined by the thickness t of the strip 6. To explain specifically,
Even when the segment (S-1) detection photocell (PH-1) is transmitting light, the tip of the strip cannot be connected to the photocell (PH-1).
-B) until the segment (S-1), (S
-2), (S-3), and (S-4) are at the same radial position and form a circle as shown in FIG. Now, when the photocell (PH-1) is transmitting light, the photocell (PH-B) detects the tip of the strip and the photocell (P
By simultaneously transmitting light from H-1) and (PH-B), a reference point is set to determine where on the surface of the reference segment (S-1) the strip tip will be located. That is, the amount of surface movement of the reel 8 is calculated by multiplying the time from when the photocell (PH-1) starts passing light until the photocell (PH-B) detects the tip of the strip and the surface speed Vr of the reel 1. .

(8.=to, Vr), and the position of the reference point for determining where the tip of the strip is on the reference segment surface is found. Next, the length of the strip from the reference point is determined by the product of the time it takes for the tip of the strip to move the set distance S2 from point b to point c and the surface speed Vr of the strip.
Find the table required movement amount 6, (a, = la · V). As a result, the position of the strip tip on the surface of the reference segment (S-1) is n=8.

18,).

Also, the exact position (△8) on the reference segment surface where the strip tip is located is △a=(8).

18. )-H
), that is, the boundary with segment (S-4), displace the reference segment so that it sinks to the deepest depth, and sequentially apply displacement to the other segments until the outer periphery of reel 1 approximately corresponds to the piece. Transform it into a cow shell. Now, if the reference segment is defined as segment (S-1) as described above, the order of segments (S-1), (S-2), (S-3), etc. is controlled by the segment setting mechanism 9. The displacement is actuated by the segment (S-1), and the displacement amount (
61) ≧ reed t, displacement amount (62) in segment (S-2)
≧ t, and in segment (S-3), the required displacement is given as displacement (63) ≧ t, and as shown in Figure 4, the position of each segment is set in the shape of a fly's shell, and the The gap amount G between segments (S-1) and (S-4) is G≧amount t, and between segments (S-1) and S・2), (S-
Each step amount (S) between 2) and (S-3) and between (S-3) and (S-4) is set such that S≦amount t. In this way, before the tip of the strip 6 enters between the reel and the wrapper roll 10, the segments of the reel 1 are displaced, and the lower segment where the difference in level between adjacent segments is the largest is used as the reference. Segment (S-1)
When the tip of the strip IJ strip 6 is positioned on the surface of ) Wind up the strip 6 along the border.

The wrap amount of the wrapper roll 10 at this time is t or less. In the above, in the relationship in which the tip of the strip is located with respect to a segment that provides a displacement determined by the conveyance distance S2 and conveyance speed V from point b to point c, and the surface distance d and surface speed Vr of the reel,
If the conditions shown in FIG. 4 are satisfied (in the case of YES), each segment is displaced in order from the reference segment without increasing or decelerating the reel 1.

Here, Q is the angle between the border of adjacent segments (reference point) and the reel where the strip tip is located. Also, the value 0.3 is determined as the step force divisor when the tip of the strip reaches point c.It is smaller than the step force when the strip is wound on a summer circle reel, for example 0.
．． It is also possible to set 15 conditions. If the above conditions are not satisfied (in the case of NO), and the condition for angles where the angle Q is larger than the angle from the reference point is satisfied (
YES), that is, when the strip tip is located at the center of the predetermined segment, the rotational speed of reel 1 Vr
and when this condition is not satisfied (when NO)
That is, when the strip tip is located at the rear of a predetermined segment, the rotational speed V of the reel is increased. This changes the phase of the strip tip and a predetermined segment where the strip tip touches the surface, and the strip is wound up. In the present invention, as described above, the displacement amount of the predetermined segment that the strip tip touches is maximized, and the segments located along the rotation direction are sequentially displaced to set each position and the strip tip is wound. ,2
Differences in strip height due to plate thickness can be minimized even from the number of turns to several turns.

Furthermore, even if the outer diameter of the reel is configured such that each segment is fixedly enlarged in the shape of a sage shell, the tip of the strip will be located at the appropriate position if the reel speed is greatly accelerated or decelerated. You may also use a similar rule. Further, for phase detection of each segment of the reel 1, a pulse generator may be used instead of the photocell. Further, it can be easily analogized to the present invention that the strip is fed while being pinched by pinch rolls, the speed is controlled so that the tip of the strip is positioned above a predetermined segment of the reel, and the strip is wound up. It is something. As described above, according to the present invention, compared to the conventional winding using a reel that is close to a perfect circle, the amount of steps depending on the plate thickness is smaller than the number of segments constituting the reel. can be eliminated.

{ii} Due to the above-mentioned 'i}, the limit of the thickness of the plate where the buckled portion conventionally occurs is increased by n times, and the thickness of the strip that can be wound can be increased.

{ii) Since the position of the segment is set before the leading end of the strip enters between the segment of the reel and the wrapper roll, the setting device has time, and the position of the segment can be easily set.

It can produce excellent effects such as Brief explanation of the drawings Figure 1A
1 is an explanatory diagram showing the state of winding up the strip of the slave, FIG. 1B is a partially enlarged view thereof, FIGS. 2 and 3 are schematic diagrams showing an embodiment of the present invention, and FIG. 4 is a control block diagram. .

DESCRIPTION OF SYMBOLS 1... Reel, 2... Cylinder, 3... Phase detection device for each segment, 4... Phase detection plate, 6... Strip, 9... Segment setting mechanism, (S-1) (S −
2) (S-3) (S-4)...Segment, day,, ratio, day 3, day 4...hole, (PH-A) (PH-B) (PH-
1) (PH-2) (PH-3) (PH-4). ...Hotose're. Ta-no-zu, Satoshi-zu, Ama-zu, Ball

Claims (1)

[Claims] 1. Before the leading edge of the material enters between the reel and the wrapper roll, a level difference between adjacent segments of a plurality of segments constituting the reel is set, and the surface of the segment with the largest and lowest level difference between the segments is set. A method for winding a material, characterized by winding the material by positioning the leading end of the material at . 2. A reel capable of independently displacing a plurality of divided segments in the radial direction, a device that detects the phase of the segment by moving in accordance with the reel, a reel rotation speed detection device, and a material speed detection device. It consists of a device and a mechanism that applies the necessary displacement operation to each segment based on signals from the above devices, material plate thickness, etc., and can form a step between each segment before the leading edge of the material enters between the reel and the wrapper roll. A winding device for the material.