JP3254170B2 - Automatic gap zero adjustment device and method for wrapper roll of winder - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an adjustment for setting a gap of a wrapper roll pressed against a mandrel to zero (a gap zero setting) when a strip material such as a strip steel sheet is wound on a winder. Apparatus and method.

[0002]

2. Description of the Related Art A winder for winding a steel strip or the like will be described with reference to FIGS. FIG. 4 shows a schematic configuration of the winding machine, and FIG.
Shows a partially enlarged state of the wrapper roll.

[0003] As shown in the figure, a steel strip 1 as a strip is guided by a guide roller 2 and supplied to a mandrel 4 of a winder 3, and the steel strip 1 is wound on the mandrel 4. Wrapper rolls 5 are arranged at three locations on the outer periphery of the mandrel 4, and the wrapper rolls 5 are rotatably supported by wrapper frames 6, respectively. The wrapper frame 6 is supported rotatably about a support point 7, and the wrapper frame 6 is swung by the driving of the opening / closing cylinder 8. That is, the operation of the opening / closing cylinder 8 causes the piston to expand and contract, and the wrapper frame 6 swings, thereby moving the wrapper roll 5 in the “closed” direction toward the mandrel 4 and, conversely, in the “open” direction. ing.

Although the wrapper rolls 5 arranged around the mandrel 4 are shown at three places in the example of FIG. 4, the number of wrapper rolls 5 can be set arbitrarily for each winding machine 3. Set to a number.

When the steel strip 1 is guided by the guide roller 2 and supplied to the mandrel 4 of the winding machine 3, the mandrel 4 and the wrapper roll 5 maintain the predetermined gap G while keeping the steel strip 1 suitable. Press it with great force and wind it along the mandrel 4. The opening and closing cylinder 8 is sequentially driven from three directions on the outer periphery of the mandrel 4 to wind the steel strip 1 around the mandrel 4 while preventing the steel strip 1 from rolling up.

As shown in FIG. 5, the gap amount G between the mandrel 4 and the wrapper roll 5 is determined by changing the position of the wrapper frame 6 from the position of the imaginary line (two-dot chain line) to the position of the solid line with the support point 7 as a pivot point. Adjusted by moving, steel strip 1
An appropriate gap amount G is maintained so that (FIG. 4) can pass.

A method of adjusting the gap zero when setting the gap between the mandrel 4 and the wrapper roll 5 in the winding machine 3 to zero will be described.

After the operator is arranged on the winding machine 3 side, both the mandrel 4 and the wrapper roll 5 are rotated, and the wrapper frame 6 is gradually moved in the "close" direction by manual operation. Then, the mandrel 4 and the wrapper roll 5 come into contact with each other, and the operator confirms a contact sound at the time of the contact, and signals the operator's cab. Thus, it is confirmed that the gap is zero, and the gap is set to zero.

[0009]

The method for adjusting the zero gap of the wrapper roll 5 of the winding machine 3 described above uses the mandrel 4.
Since the contact sound when the wrapper roll 5 and the wrapper roll 5 contact each other is sensed by the auditory sense of the operator, and that time is recognized as the gap zero, the operator must rely on the auditory sense. For this reason, there is a drawback that there is an individual difference between operators, and the gap zero adjustment point is not constant and accuracy is poor.

In addition, since the operation of bringing the wrapper roll 5 close to the mandrel is a manual operation, there is a possibility that the wrapper roll 5 may be in excessive contact due to an erroneous recognition operation or the like. Furthermore, since the wrapper frame 6 is manually moved for each of the three wrapper rolls 5 to perform the gap zero adjustment, it takes time to adjust the gap zero of the entire apparatus.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide an automatic gap zero adjusting apparatus and method for a wrapper roll of a winding machine capable of automatically and accurately adjusting a gap zero in a short time. Aim.

[0012]

According to the present invention, there is provided an automatic gap zero adjusting device for a wrapper roll of a winder according to the present invention, wherein a wrapper frame is swingable around a mandrel for winding a band material. And a wrapper for rotatably supporting a wrapper roll for holding the band material on the wrapper frame, and detecting a swing angle of the wrapper frame in a band winder including an opening / closing cylinder for swinging the wrapper frame. The wrapper roll is moved to the rotating mandrel in a stopped state by the swing of the wrapper frame and at least one of the swing angle detector and the detector that detects the stroke of the open / close cylinder. When detecting the rotation of the wrapper roll when the wrapper roll contacts the mandrel, A rotation detector that recognizes a gap zero where a gap between the roll and the mandrel becomes zero, and a gap between the mandrel and the wrapper roll when operating the opening / closing cylinder to move the wrapper frame toward the mandrel. As the gap becomes smaller, the approaching movement speed is sequentially reduced, and when the zero gap is recognized based on the detection signal from the rotation detector, the position from the open end of the wrapper frame is detected by the swing angle detector or the stroke detection. And a gap adjuster that performs zero gap setting by detecting at least one of the detector signals.

In the above configuration, the mandrel on the winder for winding the strip is rotated, and the wrapper frame is moved closer to the mandrel while the wrapper roll on the pressing side is stopped. In this approach, the section where the gap is large is moved at high speed, and as the gap becomes smaller, the section is moved at low speed and extremely low speed. When the stopped wrapper roll comes into contact with the rotating mandrel, the wrapper roll rotates from the stopped state, and by detecting this rotation, zero gap is recognized. When zero gap is recognized, the position detection value of the wrapper frame at that time is stored,
Zero gap is automatically set based on the position detection value of the wrapper frame.

In order to achieve the above object, a method for automatically adjusting a gap of a wrapper roll of a winder according to the present invention is as follows.
The mandrel on the winder side for winding the band material is rotated, and the wrapper frame supporting the wrapper roll on the holding side is moved closer to the mandrel side while the wrapper roll is stopped, so that the mandrel and the wrapper roll As the gap between them becomes smaller, the approach movement speed is sequentially reduced, and the zero gap is recognized by detecting that the wrapper roll that is stopped comes into contact with the rotating wrapper roll and the wrapper roll is rotated. It is characterized by doing.

In the section where the gap is large, the wrapper frame is moved closer at high speed, and as the gap becomes smaller, the wrapper frame is gradually decelerated so that the approach movement speed is gradually reduced to a low speed, an extremely low speed, and so on. .

[0016]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows a schematic configuration of a winding machine provided with an automatic gap zero adjusting device for a wrapper roll according to an embodiment of the present invention, and FIG. 2 shows an embodiment of the present invention. A flowchart of the automatic gap zero adjustment method for the wrapper roll, and FIG. 3 shows a time chart thereof.
Since the winding machine has the same configuration as that shown in FIGS. 4 and 5, the same reference numerals are given and the detailed description is omitted.

As shown in FIG. 1, wrapper rolls 5 are disposed at three places on the outer periphery of the mandrel 4 of the winding machine 3, and a wrapper frame 6 for rotatably supporting the wrapper rolls 5 is provided.
Is rotatably supported about a support point 7 by an opening / closing cylinder 8. The operation of the opening / closing cylinder 8 causes the piston rod to expand and contract, causing the wrapper frame 6 to swing, thereby moving the wrapper roll 5 in the “closed” direction toward the mandrel 4 and, conversely, in the “open” direction. I have. Although only one wrapper frame 6 and one opening / closing cylinder 8 are shown in the figure, the configuration of the support state of the three wrapper rolls 5 is the same.

The gap G between the mandrel 4 and the wrapper roll 5 is adjusted by swinging the wrapper frame 6 with the support point 7 as a pivot point, and the strip steel plate 1 as a strip material is adjusted.
(See FIG. 4), an appropriate gap amount G is maintained. In order to maintain an appropriate gap amount G, an automatic gap zero adjusting device that recognizes a position where the gap amount G becomes zero is provided.

That is, the wrapper frame 6 is provided with an angle detector 11 as a swing angle detector.
1, the swing angle of the wrapper frame 6 is detected. The opening / closing cylinder 8 is provided with a stroke detector 13 for detecting a stroke amount of the piston rod 12, and the wrapper roll 5 is provided with a rotation detector 14 for detecting rotation of the wrapper roll 5.

When the wrapper roll 5 approaches the rotating mandrel 4 in a stopped state by swinging the wrapper frame 6, the rotation of the wrapper roll 5 when the wrapper roll 5 comes into contact with the mandrel 4 is rotated. Detector 14
, The gap zero where the gap between the wrapper roll 5 and the mandrel 4 becomes zero is recognized.

Information detected by the angle detector 11, the stroke detector 13, and the rotation detector 14 is input to a gap adjuster 15, which outputs a drive command to the opening / closing cylinder 8. The wrapper frame 6 is configured to swing according to a command from the gap adjuster 15 based on information detected by the angle detector 11, the stroke detector 13, and the rotation detector 14. That is, the gap adjuster 1
Numeral 5 controls the driving of the opening / closing cylinder 8 to adjust the gap G between the mandrel 4 and the wrapper roll 5.

That is, the gap adjuster 15 drives the opening / closing cylinder 8 to move the wrapper frame 6 to the mandrel 4.
When approaching to the side, mandrel 4 and wrapper roll 5
The approaching movement speed is sequentially reduced as the gap between them becomes smaller, and when the zero gap is recognized based on the detection signal from the rotation detector 14, the position from the open limit of the wrapper frame 6 is detected by the angle detector 11 and the stroke detector. Table 13
And the gap zero setting is performed by the detection signal.

In the illustrated example, the angle detector 11 and the stroke detector 13 are provided, and the zero gap is set based on the detection signals of the two detectors 11, 13. However, at least one of the detectors is used. May be set based on this signal.

Next, a method for adjusting the zero gap will be described with reference to FIGS. FIG. 2 is a control flowchart by the above-described gap zero adjusting device, and FIG. 3 is a time chart showing the relationship between the gap amount and the peripheral speed (rotation speed) between the mandrel 4 and the wrapper roll 5 by the above-described gap zero adjusting device. Things.

As shown in FIGS. 2 and 3, the mandrel 4 on the winding machine 3 side is rotated at a peripheral speed of 400 mpm, for example.
The wrapper roll 5 on the holding side is stopped (S
1). In this state, the wrapper frame 6 is moved closer to the mandrel 4 by driving the opening / closing cylinder 8. In the section where the gap between the mandrel 4 and the wrapper roll 5 is large, the wrapper frame 6 is moved close to the "close" direction at a high speed of, for example, 20 mm / s to 35 mm / s (S2). When the gap becomes smaller after the high-speed movement section (S3), the wrapper frame 6 is moved closer to the "closed" direction at a low speed of, for example, 2 mm / s (S4).

When the gap is further reduced after the low-speed moving section has passed (S5), the wrapper frame 6 is moved to, for example, 0.5 m.
At a very low speed of m / s, the robot is moved closer to the "close" direction to approach the mandrel 4 (S6). When the wrapper roll 5 comes into contact with the rotating mandrel 4, the wrapper roll 5 rotates from a stopped state, and the peripheral speed of the wrapper roll 5 is, for example, 5 mpm.
This is detected by the rotation detector 8 (S
7). When the rotation of the wrapper roll 5 is detected by the rotation detector 8, this is recognized as zero gap (G = 0).

When zero gap (G = 0) is recognized, the position of the wrapper frame 6 from the opening limit at that time is detected by the stroke detector 9 and the angle detector 11, and the stroke detector 9 and the angle detector 11 are detected. Is stored in the gap adjuster 15 (S8). After the detected value is stored in the gap adjuster 15, the wrapper roll 5 is quickly opened (S8), and when the wrapper frame 6 reaches the opening limit, the gap adjuster 15 performs zero gap setting (S10).

With the above operation, the zero adjustment of the gap of the wrapper roll 5 of the winding machine 3 is automatically performed.

According to the automatic gap zero adjustment method for the wrapper roll 5 of the winding machine 3 described above, the gap is zero (G = 0).
Is detected by the rotation of the wrapper roll 5, the accuracy of the zero gap adjustment is improved, and a higher repetition accuracy can be realized. Further, since no manual operation by the operator is required, erroneous operation is avoided and the wrapper roll 5
Etc. are eliminated. Furthermore, a plurality of wrapper rolls 5
Can be simultaneously adjusted to zero gap, so that the gap zero adjustment of the entire apparatus can be performed in a short time.

[0030]

According to the present invention, there is provided an automatic gap zero adjusting device for a wrapper roll of a winder, wherein a wrapper frame is swingably provided around a mandrel for winding a band material, and the wrapper presses the band material on the wrapper frame. In a band material winder having a roll that rotatably supports and swings the wrapper frame, a swing angle detector that detects a swing angle of the wrapper frame or a stroke of the open / close cylinder is used. When the wrapper roll comes into contact with the mandrel when the wrapper roll is moved closer to the rotating mandrel in a stopped state due to at least one of the detectors to be detected and the swing of the wrapper frame. Detecting the rotation of the wrapper roll, the gap between the wrapper roll and the mandrel becomes zero. A rotation detector for recognizing a zero gap, and when operating the opening / closing cylinder to bring the wrapper frame closer to the mandrel side, the approach movement speed is sequentially increased as the gap between the mandrel and the wrapper roll becomes smaller. When the vehicle is decelerated and zero gap is recognized based on the detection signal from the rotation detector, the position from the open limit of the wrapper frame is detected by at least one of the swing angle detector and the stroke detector. And a gap adjuster for setting the gap to zero, so that the mandrel on the winding machine side is rotated, and the wrapper frame is moved closer to the mandrel side with the wrapper roll on the holding side stopped. Move close at high speed, approach at low speed and very low speed as the gap becomes smaller Is dynamic, the wrapper roll in stopping a rotating mandrel are in contact,
The wrapper roll rotates from a stopped state, and by detecting this rotation, gap zero is recognized, the detected position value of the wrapper frame at that time is stored, and the gap zero is automatically set based on the detected position value of the wrapper frame. Can be.

As a result, the gap zero setting is automatically performed to improve the accuracy of the gap zero adjustment, the operator's erroneous operation can be avoided, and the gap zero adjustment of a plurality of wrapper rolls can be performed at the same time. Adjustment can be performed in a short time. As a result, it is possible to automatically and accurately adjust the gap zero in a short time.

In the method of automatically adjusting the gap of the wrapper roll of the winding machine according to the present invention, the mandrel on the winding machine side for winding the strip is rotated, and the wrapper frame supporting the wrapper roll on the holding side is connected to the wrapper. While the roll is stopped, the wrapper is moved closer to the mandrel side, the approach movement speed is sequentially reduced as the gap between the mandrel and the wrapper roll becomes smaller, and the wrapper stopped at the rotating mandrel. Since the gap zero is recognized by detecting the rotation of the wrapper roll due to the contact of the roll, the gap zero is automatically set, and the accuracy of the gap zero adjustment is improved. Can be avoided, and the gap zero adjustment of multiple wrapper rolls can be performed at the same time. It can be carried out in a short period of time.

As a result, it is possible to automatically and accurately adjust the gap zero in a short time.

In the automatic gap zero adjusting method for the wrapper roll of the winding machine according to the present invention, the wrapper frame is moved at a high speed in a section where the gap is large. Since the speed is gradually reduced so as to gradually decrease the moving speed, the accuracy of the zero gap adjustment is remarkably improved.

[Brief description of the drawings]

FIG. 1 is a schematic configuration diagram of a winder provided with an automatic gap zero adjusting device for a wrapper roll according to an embodiment of the present invention.

FIG. 2 is a flowchart of an automatic gap zero adjustment method for a wrapper roll according to an embodiment of the present invention.

FIG. 3 is a time chart of an automatic gap zero adjustment method of a wrapper roll according to an embodiment of the present invention.

FIG. 4 is an explanatory view of a winder for winding a steel strip.

FIG. 5 is a partially enlarged view of a wrapper roll.

[Description of Signs] 1 Strip steel plate 2 Guide roller 3 Winding machine 4 Mandrel 5 Wrapper roll 6 Wrapper frame 7 Support point 8 Opening / closing cylinder 11 Angle detector 12 Piston rod 13 Stroke detector 14 Rotation detector 15 Gap adjuster

────────────────────────────────────────────────── (5) References JP-A-3-186550 (JP, A) (58) Fields investigated (Int. Cl. ⁷ , DB name) B21C 47/06 B21C 47/02 B65H 18 / 26 B65H 23/195

Claims (3)

(57) [Claims] An open / close cylinder for swingably providing a wrapper frame around a mandrel for winding a band material, rotatably supporting a wrapper roll for holding the band material on the wrapper frame, and swinging the wrapper frame. And a swing angle detector for detecting a swing angle of the wrapper frame or a detector for detecting a stroke of the opening / closing cylinder; and a swing of the wrapper frame. By the way, when the wrapper roll is moved closer to the rotating mandrel in a stopped state, the rotation of the wrapper roll when the wrapper roll comes into contact with the mandrel is detected to detect the rotation of the wrapper roll and the mandrel. A rotation detector for recognizing a gap zero at which the gap of the cylinder becomes zero, and actuating the open / close cylinder When the wrapper frame approaches the mandrel side, the approach movement speed is sequentially reduced as the gap between the mandrel and the wrapper roll becomes smaller, and the gap zero is reduced by a detection signal from the rotation detector. When recognizing, the position from the open limit of the wrapper frame is determined by at least one of the swing angle detector and the stroke detector.
An automatic gap zero adjusting device for a wrapper roll of a winding machine, comprising: a gap adjuster that performs zero gap setting by detecting the two detection signals. 2. A mandrel on a winding machine side for winding a band material is rotated, and a wrapper frame supporting a wrapper roll on a holding side is moved toward the mandrel with the wrapper roll stopped, and the mandrel and As the gap between the wrapper roll and the wrapper roll decreases, the approach movement speed is sequentially reduced, and the rotation of the wrapper roll is detected by contacting the stopped wrapper roll with the rotating mandrel. Automatic gap zero adjustment of the wrapper roll of the winding machine, wherein the gap zero is recognized by the following. 3. The method according to claim 2, wherein the section in which the gap is large moves the wrapper frame close at high speed,
2. The automatic gap zero adjustment method for a wrapper roll of a winder according to claim 1, wherein the speed is gradually reduced so that the lowering speed, the extremely low speed, and the approaching moving speed gradually decrease as the gap becomes smaller.