CN113798345A - Winding device and method for operating winding device - Google Patents
Winding device and method for operating winding device Download PDFInfo
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- CN113798345A CN113798345A CN202011610797.9A CN202011610797A CN113798345A CN 113798345 A CN113798345 A CN 113798345A CN 202011610797 A CN202011610797 A CN 202011610797A CN 113798345 A CN113798345 A CN 113798345A
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- winder
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- leading end
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- 238000004804 winding Methods 0.000 title claims abstract description 107
- 238000000034 method Methods 0.000 title claims abstract description 39
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 358
- 239000010959 steel Substances 0.000 claims abstract description 358
- 238000001514 detection method Methods 0.000 claims description 9
- 238000011144 upstream manufacturing Methods 0.000 claims description 6
- 238000005096 rolling process Methods 0.000 description 71
- 238000003780 insertion Methods 0.000 description 33
- 230000037431 insertion Effects 0.000 description 33
- 238000010586 diagram Methods 0.000 description 15
- 238000003860 storage Methods 0.000 description 12
- 230000014509 gene expression Effects 0.000 description 5
- 230000002123 temporal effect Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000001174 ascending effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 239000002436 steel type Substances 0.000 description 2
- 241000196324 Embryophyta Species 0.000 description 1
- 240000006829 Ficus sundaica Species 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
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- 238000012545 processing Methods 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C47/00—Winding-up, coiling or winding-off metal wire, metal band or other flexible metal material characterised by features relevant to metal processing only
- B21C47/34—Feeding or guiding devices not specially adapted to a particular type of apparatus
- B21C47/3433—Feeding or guiding devices not specially adapted to a particular type of apparatus for guiding the leading end of the material, e.g. from or to a coiler
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Abstract
The invention provides a winding device and a method for operating the winding device, which can more reliably make the front end of a steel strip enter a slot of a winding machine in a short time. The winding device is provided with: a winding machine including a mandrel having a slot capable of receiving a leading end of a steel strip, the winding machine being configured to wind the steel strip; a guide disposed above the winder, for guiding the steel strip to the winder; and a control device for controlling rotation of the winding machine, the control device being configured to: rotating the winder in a direction opposite to a winding direction so that the leading end of the steel strip fed out from the guide enters the slot.
Description
Technical Field
The present disclosure relates to a winding apparatus and an operation method of the winding apparatus.
Background
In winding a steel strip, it is known to wind the steel strip by rotating a winder while holding a leading end of the steel strip by a gripper provided in the winder.
Patent document 1 describes that the position of a guide table provided on the upstream side of a tension reel (winder) and the length of a table surface are adjusted in order to guide the leading end of a steel strip to a gripper of the tension reel.
Documents of the prior art
Patent document
Patent document 1: japanese laid-open patent publication No. 5-42323
However, when the guide is positioned above the winder (the above-described guide table or the like), the position and shape of the leading end portion of the steel strip guided from the guide to the winder differ depending on the steel type, the plate thickness, and the like. Therefore, when the winding of the steel strip is started, it is difficult to appropriately adjust the leading end of the steel strip and the position of the slot in a short time so that the leading end of the steel strip enters the slot of the mandrel of the winder.
Disclosure of Invention
Problems to be solved by the invention
In view of the above, an object of at least one embodiment of the present invention is to provide a winding machine and a winding machine operation method that can more reliably insert the leading end of the steel strip into the insertion slot of the mandrel of the winding machine in a short time.
Means for solving the problems
A winding device according to at least one embodiment of the present invention includes:
a winding machine including a mandrel having a slot capable of receiving a leading end of a steel strip, the winding machine being configured to wind the steel strip;
a guide disposed above the winder, for guiding the steel strip to the winder; and
a control device for controlling rotation of the winder,
the control device is configured to: rotating the winder in a direction opposite to a winding direction so that the leading end of the steel strip fed out from the guide enters the slot.
In addition, in an operation method of a winding device according to at least one embodiment of the present invention, the winding device includes: a winder including a mandrel having a slot capable of receiving a leading end of a steel strip; and a guide disposed above the winder, wherein,
the operation method of the winding device comprises the following steps:
feeding a leading end of the steel strip from the guide toward the winder; and
rotating the winder in a direction opposite to a winding direction so that the leading end of the steel strip fed out from the guide enters the slot.
Effects of the invention
According to at least one embodiment of the present invention, there are provided a winding apparatus and a winding apparatus operation method capable of more reliably entering the leading end of the steel strip into the slot of the mandrel of the winder in a short time.
Drawings
Fig. 1 is a schematic configuration diagram of a rolling facility to which a rolling facility according to an embodiment is applied.
Fig. 2A is a partial cross-sectional view of a winder of an embodiment.
Fig. 2B is a partial cross-sectional view of a winder of an embodiment.
Fig. 3 is a schematic configuration diagram of a control device according to an embodiment.
Fig. 4 is a flowchart of an operation method of the winding device according to an embodiment.
Fig. 5 is a diagram for explaining an operation method of the winding device according to an embodiment.
Fig. 6 is a diagram for explaining an operation method of the winding device according to an embodiment.
Fig. 7 is a diagram for explaining an operation method of the winding device according to an embodiment.
Fig. 8 is a diagram for explaining an operation method of the winding device according to an embodiment.
Fig. 9 is a diagram for explaining an operation method of the winding device according to an embodiment.
Fig. 10 is a diagram showing an example of temporal changes in the position in the vertical direction of the steel strip in the operation method according to the embodiment.
Fig. 11 is a diagram showing an example of temporal changes in the horizontal position of the steel strip in the operation method according to the embodiment.
Fig. 12 is a diagram for explaining changes in the position and the like of the guide according to the embodiment.
Fig. 13 is a flowchart of changing the position of the guide and the like according to the embodiment.
Fig. 14 is a flowchart of changing the position of the guide and the like according to the embodiment.
Description of reference numerals:
1 Rolling plant
2 winding device
4 unreeling machine
6 feeding side guide roller
8 winding machine
9 Motor
10 rolling mill
11 Motor
12 feed-out side guide roller
13 guide piece
13a guide surface
13b front end
14 mandrel
14a surface
14b uppermost part
15 Rolling roll
16 rolling roll
17 intermediate roll
18 intermediate roll
19 support roller
20 support roller
22 slot
24 clamp holder
32 first position detector
34 second position detector
38 speed sensor
40 detector
50 control device
52 contact judging part
54 slot entrance determination unit
56 steel band position range determination part
58 table acquisition part
60 table correcting unit
62 winder control part
64 gripper control section
66 feed-out control part
68 guide control part
70 storage part
S steel belt
Sa downstream side region
St front end.
Detailed Description
Hereinafter, several embodiments of the present invention will be described with reference to the drawings. The dimensions, materials, shapes, relative arrangements, and the like of the constituent members described as the embodiments or shown in the drawings are not intended to limit the scope of the present invention to these, but are merely illustrative examples.
(Structure of Rolling mill)
Fig. 1 is a schematic configuration diagram of a rolling facility to which a winding facility 2 according to an embodiment is applied. As shown in fig. 1, a rolling facility 1 includes: a rolling mill 10 for rolling the steel strip S; an unreeling machine 4 provided on the feeding side of the rolling mill 10 (i.e., on the upstream side of the rolling mill 10 in the conveying direction of the steel strip S); and a rolling facility 2 including a rolling machine 8 provided on the delivery side of the rolling machine 10 (i.e., on the downstream side of the rolling machine 10 in the conveying direction of the steel strip S). The rolling facility 1 may include 1 rolling mill 10 as shown in fig. 1, or may include 2 or more rolling mills 10.
The rolling mill 10 includes a pair of rolling rolls (work rolls) 15 and 16 provided on both sides of the steel strip S with the steel strip S interposed therebetween. The rolling mill 10 includes a pair of intermediate rolls 17 and 18 and a pair of backup rolls 19 and 20, which are provided on the opposite side of the steel strip S with the pair of rolling rolls 15 and 16 interposed therebetween. The intermediate rolls 17 and 18 and the backup rolls 19 and 20 are configured to support the rolling rolls 15 and 16. The rolling mill 10 is provided with a rolling device (hydraulic cylinder or the like; not shown) for applying a load to the pair of rolling rolls 15, 16 to roll down the steel strip S between the pair of rolling rolls 15, 16.
The rolling rolls 15 and 16 are connected to a motor 11 via a main shaft (not shown) or the like, and the rolling rolls 15 and 16 are driven to rotate by the motor. In the rolling of the steel strip S, the rolling rolls 15 and 16 are rotated by the motor 11 while the steel strip S is rolled by the rolling device, so that frictional force is generated between the rolling rolls 15 and 16 and the steel strip S, and the steel strip S is conveyed to the delivery sides of the rolling rolls 15 and 16 by the frictional force.
The spindle of the uncoiler 4 is driven by a motor (not shown) to uncoil the steel strip S toward the rolling mill 10. The mandrel of the uncoiler 4 is driven by a motor (not shown) at the time of rolling the steel strip S to apply a feeding-side tension to the steel strip S.
The coiler 8 is configured to coil the steel strip S from the rolling mill 10. The winder 8 is configured to rotate a spindle 14 driven by a motor 9. When the winding machine 8 winds the steel strip S, the mandrel 14 rotates in the winding direction shown in fig. 1 to wind the steel strip S. When rolling the steel strip S while being wound by the mandrel 14 of the winder 8, the mandrel 14 of the winder 8 applies a tension to the steel strip S on the delivery side.
As shown in fig. 1, a delivery-side guide roll 6 for guiding the steel strip S introduced from the mandrel of the uncoiler 4 to the rolling mill 10 may be provided between the mandrel of the uncoiler 4 and the rolling mill 10. Further, a delivery-side guide roller 12 for guiding the strip S delivered from the rolling mill 10 to the mandrel 14 of the coiler 8 may be provided between the rolling mill 10 and the mandrel 14 of the coiler 8.
In some embodiments, the rolling facility 1 may be a rolling facility (reverse rolling mill) that performs rolling by reciprocating the steel strip S passing between the pair of rolling rolls 15 and 16. In this case, the rolling is stopped immediately before the tail end of the steel strip S unwound from the mandrel of the unwinder 4, the rolling is completed an odd number of times (1 st pass, etc.) while the steel strip S is being rolled down by the rolling rolls 15 and 16, and then the rolling is performed an even number of times (2 nd pass, etc.) while the steel strip S is unwound from the mandrel 14 of the rewinder 8 toward the rolling mill 10 and wound up by the mandrel of the unwinder 4 while the steel strip S is advanced in the opposite advancing direction to the previous one. That is, the action of the unreeling machine 4 is exchanged with the action of the reeling machine 8 according to the traveling direction of the steel strip S.
(Structure of winding apparatus)
The winding device 2 shown in fig. 1 comprises: the winder 8 described above; a guide 13 disposed above the winder 8 and configured to guide the steel strip S to a mandrel 14 of the winder 8; and a control device 50 for controlling the rotation of the mandrel 14 of the winder 8 and the like. The winding facility 2 is provided with various sensors for measuring the position, speed, and the like of the steel strip S.
Fig. 2A and 2B are partial cross-sectional views of the winding machine 8 according to an embodiment, and are views for explaining the operation of the winding machine 8. As shown in fig. 1 and 2A, the winder 8 includes a spindle 14: having a surface (peripheral surface) 14 a; and the motor 9 for driving the spindle 14 to rotate. The winder 8 has an insertion slot 22 provided in a recessed manner from the surface 14a of the spindle 14.
The slot 22 of the mandrel 14 is configured to be able to receive the tip St of the steel strip S (see fig. 2B). For example, the width (groove thickness) d of the insertion groove 22 is set larger than the thickness of the steel strip S. The insertion groove 22 extends in a direction (direction of the straight line U in fig. 2A) inclined with respect to a direction of a tangent T (see fig. 2A) to the surface 14a of the spindle 14 at a position where the insertion groove 22 is provided.
The winding machine 8 further includes grippers 24 for gripping the leading end of the steel strip S entering the slot 22. In one embodiment, the gripper 24 is configured to move in the radial direction by being driven by an actuator (not shown). When the tip St of the steel strip S is received in the slot 22 of the mandrel 14, the gripper 24 is held at a position radially inward as shown in fig. 2A, and the slot 22 is opened. When gripping the tip end portion of the steel strip S that has entered the slot 22, the gripper 24 is operated by the actuator to move to a position radially outward as shown in fig. 2B, and a force is applied from the gripper 24 to the mandrel 14 to grip the tip end portion of the steel strip S.
The guide 13 has an upward-facing guide surface 13 a. The strip S from the rolling mill 10 is guided by the guide surfaces 13a of the guides 13 and guided to the mandrel 14 of the winder 8. The guide surface 13a typically has a planar shape, but may also have a partially or entirely curved shape.
The position of the guide 13 may be configured to be changeable. For example, the following may be configured: by driving the guide 13 by an actuator (not shown), the position of the guide 13 in the horizontal direction and/or the position in the vertical direction can be changed.
Alternatively, the orientation of the guide 13 may be changeable. For example, the guide 13 is driven by an actuator (not shown), whereby the angle of the guide surface 13a with respect to the horizontal direction can be changed.
Alternatively, the shape of the guide 13 may be configured to be changeable. For example, the guide 13 may be configured to: the guide surface 13a can be extended and contracted, and the length of the guide surface 13a and the position of the tip 13b of the guide surface 13a can be changed by extending and contracting the guide surface 13a using an actuator (not shown).
The sensors provided in the winding facility 2 may include a first position detector 32 and a second position detector 34 for measuring the position of a portion Sa (hereinafter, also simply referred to as a downstream portion) of the steel strip S on the downstream side of the guide 13 in the conveying direction of the steel strip S.
The first position detector 32 shown in fig. 1 can detect the position of the steel strip S in the vertical direction at a specific measurement position in the horizontal direction. The first position detector 32 may detect the position of the steel strip S in the vertical direction (relative position to the first position detector 32) by measuring a distance Lv (see fig. 5) from the first position detector 32 to the steel strip S in the vertical direction.
The second position detector 34 shown in fig. 1 can detect the horizontal position of the steel strip S at a specific measurement position in the vertical direction. The second position detector 34 may detect the position of the steel strip S in the horizontal direction (relative position to the second position detector 34) by measuring a horizontal distance Lh (see fig. 5) from the second position detector 34 to the steel strip S.
As shown in fig. 1, the coiling facility 2 may be provided with a speed sensor 38 for measuring the speed of the strip S on the delivery side of the rolling mill 10, a detector 40 for detecting the passage of the tip St of the strip S on the delivery side of the rolling mill 10, and the like.
Fig. 3 is a schematic configuration diagram of a control device 50 constituting the winding facility 2 according to the embodiment. The control device 50 is configured to: signals indicating the detection results are received from various sensors (the above-described first position detector 32 or second position detector 34, etc.) provided to the winding apparatus 2, and the rotation of the spindle 14 of the winder 8 is controlled based on the received signals. Further, the control device 50 may be configured to: based on signals received from various sensors, the grippers 24, the guides 13, or a delivery section (the rolling mill 10 or the like) provided upstream of the coiler 8 in the conveying direction of the steel strip S are controlled.
The control device 50 may include a processor (CPU, etc.), a storage device (memory device; RAM, etc.), an auxiliary storage unit, an interface, and the like. The control device 50 receives signals from various sensors via an interface. The processor is configured to process the signal thus received. The processor is configured to process a program developed in the storage device.
The processing contents in the control device 50 may be installed as a program executed by a processor and stored in the auxiliary storage unit. When the programs are executed, the programs are expanded in the storage device. The processor reads the program from the storage device and executes the commands contained in the program.
As shown in fig. 3, the control device 50 includes: a contact judging section 52 for judging whether or not the leading end portion of the steel strip S is in contact with the surface 14a of the mandrel 14 of the winder 8; an entry slot determination unit 54 for determining whether or not the leading end St of the steel strip S enters the slot 22 of the mandrel 14; and a winder control section 62 for controlling the operation of the winder 8. The control device 50 may include a clamper control unit 64 for controlling the operation of the clamper 24, a delivery control unit 66 for controlling the operation of the delivery unit (the rolling mill 10, etc.), and/or a guide control unit 68 for controlling the operation of the guide 13. The control device 50 may include a strip position range determination unit 56, a table acquisition unit 58, and/or a table correction unit 60. The functions of the respective parts constituting the control device 50 will be described later.
(operation method of winding apparatus)
Next, an operation method of the winding machine 2 having the above-described configuration will be described. In the following description, a method of operating the winding machine 2 by the control device 50 described above will be described, but in some embodiments, some or all of the method described below may be manually performed.
Fig. 4 is a flowchart of an operation method of the winding device 2 according to an embodiment. Fig. 5 to 9 are views for explaining an operation method of the winding device 2 according to an embodiment. Fig. 5 shows a state in which the steel strip S is fed toward the winder 8, fig. 6 shows a state in which the tip St of the steel strip S is in contact with the surface 14a of the mandrel 14 of the winder 8, fig. 7 and 8 show a state in which the tip of the steel strip S enters the slot 22 of the mandrel 14 of the winder 8, and fig. 9 shows a state in which the steel strip S is wound by the winder 8. Fig. 10 is a diagram showing an example of temporal changes in the position of the steel strip in the vertical direction in the operation method according to the embodiment, and fig. 11 is a diagram showing an example of temporal changes in the position of the steel strip in the horizontal direction in the operation method according to the embodiment.
In one embodiment, first, the steel strip S is fed out by the feeding-out section toward the winder 8 via the guide 13 (S2; see fig. 5). In step S2, the leading end St of the steel strip S is located between the guide 13 and the spindle 14 of the winder 8. The feeding unit may be the rolling mill 10 or the unreeling machine 4. For example, when the steel strip S is rolled by the rolling mill 10, the rolling mill 10 may function as a delivery unit. Alternatively, the uncoiler 4 may function as a delivery unit when the steel strip S is not rolled.
Then, the reel controller 62 rotates the mandrel 14 of the reel 8 in the direction opposite to the winding direction (hereinafter, also simply referred to as the opposite direction) so that the leading end St of the steel strip S fed out from the guide 13 enters the insertion slot 22 of the mandrel 14 of the reel 8 (S8; see fig. 6 to 8). Specifically, for example, the winder control section 62 gives an appropriate rotation speed command value to the motor 9 so that the spindle 14 of the winder 8 rotates in the opposite direction.
In this way, by rotating the mandrel 14 of the winder 8 in the direction opposite to the winding direction so that the leading end St of the steel strip S guided by the guide 13 located above the winder 8 enters the insertion slot 22 of the mandrel 14 of the winder 8, even if the relative positional relationship between the leading end St of the steel strip S and the insertion slot 22 is not finely adjusted, the insertion slot 22 moves toward the leading end St of the steel strip S and receives the leading end St, and therefore, the leading end St of the steel strip S can be automatically entered into the insertion slot 22. Therefore, the leading end St of the steel strip S can be more reliably made to enter the insertion slot 22 of the mandrel 14 of the winder 8 in a short time, whereby the production efficiency of the product can be improved.
In step S8, the mandrel 14 may be rotated in the opposite direction with the leading end St of the steel strip S in contact with the surface 14a of the mandrel 14 (see S4 and fig. 6). In step S8, the mandrel 14 may be rotated in the opposite direction after the feeding of the steel strip S by the feeding unit (the rolling mill 10 or the like) is stopped (S6). In another embodiment, the rotation of the mandrel 14 in the opposite direction may be started before the feeding of the steel strip S by the feeding unit is stopped.
In one embodiment, in step S6, the feeding of the steel strip S by the feeding unit may be stopped based on the position of the downstream portion Sa of the steel strip S. That is, the control device 50 may give a rotation speed command value for stopping the rotation of the rolling rolls 15 and 16 to the motor 11 that drives the rolling mill 10 as the delivery unit, based on the position of the downstream portion Sa of the strip S, for example.
More specifically, for example, in step S2, the contact determination unit 52 (see fig. 3) determines whether or not the leading end St of the steel strip S is in contact with the surface 14a of the mandrel 14 based on the position of the downstream side portion Sa of the steel strip S while the steel strip S is being fed toward the winder 8 (S4). Then, if it is determined in step S4 that the leading end St of the steel strip S is in contact with the surface 14a of the mandrel 14 (yes in S4), the feeding of the steel strip S by the feeding section is stopped (S6). Here, the position of the downstream portion Sa of the steel strip S may be the position of the steel strip S detected by the first position detector 32 or the second position detector 34. If it is determined in step S4 that the leading end St of the steel strip S has not yet come into contact with the surface 14a of the mandrel 14 (no in S4), the process returns to step S2 to continue the feeding of the steel strip S.
Whether or not the leading end St of the steel strip S is in contact with the surface 14a of the mandrel 14 can be determined as follows, for example. Here, fig. 10 and 11 show the detection results of the position of the steel strip S by the first position detector 32 and the second position detector, respectively. In the graph of fig. 10, it is shown that the larger the value of the vertical axis, the higher the position of the steel strip S detected by the first position detector 32 (that is, the shorter the distance between the first position detector 32 and the steel strip S in the vertical direction). In the graph of fig. 11, it is shown that the larger the value of the vertical axis, the closer the position of the steel strip S detected by the second position detector 34 is to the delivery part (the rolling mill 10, etc.) in the horizontal direction (that is, the larger the distance between the second position detector 34 and the steel strip S in the horizontal direction).
When the steel strip S is fed out by the feeding section via the guide 13 toward the mandrel 14 of the winder 8, the leading end St of the steel strip S passes through the position of the first position detector 32 in the horizontal direction at time t10 (see fig. 10 and 11), passes through the position of the second position detector 34 in the vertical direction at time t11, and reaches the surface 14a of the mandrel 14 at time t 12. Then, before time t13, the tip St of the steel strip S continues to move along the surface 14a of the mandrel 14 as the steel strip S is fed by the feeding section. At this time, as shown in fig. 10, the lowering speed of the position in the vertical direction of the steel strip S detected by the first position detector 32 is lower than that before the tip St of the steel strip S comes into contact with the front surface 14a (time t10 to t12) (in this case, the feeding speed of the steel strip S is constant). In this way, the tip St of the steel strip S can be determined to be in contact with the surface 14a of the mandrel 14 based on the lowering speed of the position of the steel strip S in the vertical direction.
By stopping the feeding of the strip S based on the position of the downstream portion Sa of the strip S in this manner, the feeding of the strip S by the feeding unit (the rolling mill 10 or the like) can be stopped when the tip St of the strip S is at an appropriate position where the tip St easily enters the slot 22. This enables the leading end St of the steel strip S to be more reliably inserted into the insertion slot 22 of the mandrel 14 of the winder 8.
In step S8, the reverse rotation of the mandrel 14 of the winder 8 may be started based on the position of the downstream portion Sa of the steel strip S. That is, a rotation speed command value for starting the rotation of the mandrel 14 of the coiler 8 may be given based on the position of the downstream portion Sa of the steel strip S by the control device 50.
In this way, the reverse rotation of the mandrel 14 of the winder 8 is started based on the position of the downstream portion Sa of the steel strip S, and therefore the leading end St of the steel strip S can be more reliably inserted into the insertion slot 22 of the mandrel 14 of the winder 8.
In one embodiment, the contact determination unit 52 determines whether or not the leading end St of the steel strip S is in contact with the surface 14a of the mandrel 14 of the winder 8 based on the position of the downstream portion Sa of the steel strip S (S4 described above). Further, if it is determined that the leading end St of the steel strip S is in contact with the surface 14a of the mandrel 14 of the winder 8 (yes in S4), the rotation of the mandrel 14 of the winder 8 in the opposite direction is started (S8). The determination of whether or not the tip St of the steel strip S is in contact with the surface 14a of the mandrel 14 by the contact determination unit 52 can be performed in the order described above.
In this way, the reverse rotation of the mandrel 14 of the winder 8 is started based on the determination result of whether the leading end St of the steel strip S is in contact with the surface 14a of the mandrel 14 of the winder 8, and therefore the leading end St of the steel strip S can be more reliably made to enter the insertion groove 22 of the mandrel 14 of the winder 8.
Alternatively, in one embodiment, for example, the controller 50 determines whether or not the leading end St of the steel strip S is in contact with a portion (in fig. 6, the surface 14a of the portion with diagonal lines of the mandrel 14) on the winding direction downstream side of the uppermost portion 14b (see fig. 6) of the upper surface 14a of the mandrel 14 (the surface 14a of the upper half of the mandrel 14) of the winder 8. Further, the mandrel 14 of the winder 8 may be rotated in the opposite direction in a state where the leading end St of the steel strip S is in contact with the portion (S8).
In this way, by rotating the mandrel 14 of the winder 8 in the opposite direction in a state where the leading end St of the steel strip S is in contact with the portion of the upper surface 14a of the mandrel 14 of the winder 8 on the downstream side in the winding direction from the uppermost portion 14b, the leading end St of the steel strip S can be more reliably inserted into the insertion slot 22 of the winder 8.
If the mandrel 14 of the coiler 8 is rotated in the reverse direction in the order before the step S8 described so far, a determination is made as to whether or not the leading end St of the steel strip S enters the slot 22 of the mandrel 14 of the coiler 8 (S10). In step S10, the reverse rotation of the mandrel 14 of the winder 8 is continued (S8) until it is judged that the leading end St of the steel strip S enters the slot 22 of the mandrel 14 of the winder 8 (no in step S10).
If it is determined in step S10 that the leading end St of the steel strip S has entered the slot 22 of the mandrel 14 of the coiler 8 (yes in step S10; refer to fig. 8), the rotation of the mandrel 14 of the coiler 8 in the opposite direction is stopped (S12). Further, if it is determined in step S10 that the leading end St of the steel strip S has entered the slot 22 of the mandrel 14 of the coiler 8 (YES in step S10; refer to FIG. 8), the leading end portion of the steel strip S that has entered the slot 22 is gripped by the grippers 24 (refer to FIGS. 2A and 2B) (S14). In step S14, the gripper control section 64 (see fig. 3) appropriately controls the actuator for driving the gripper 24 so that the gripper 24 grips the leading end portion of the steel strip S. Note that the order of steps S12 and S14 may be either prior. That is, after the gripper 24 grips the leading end portion of the steel strip S entering the slot 22, the rotation of the mandrel 14 of the winder 8 in the opposite direction may be stopped.
Then, the mandrel 14 of the winder 8 is rotated in the winding direction with the leading end portion of the steel strip S held by the grippers 24, and the steel strip S is wound (S16; see fig. 9).
From step S2 of feeding the steel strip S toward the mandrel 14 of the winder 8 until at least the leading end St of the steel strip S enters the slot 22 (to step S12), the position, orientation, and shape of the guide 13 are set so that the steel strip S is guided to the mandrel 14 of the winder 8 by the guide 13. On the other hand, at the stage of winding the steel strip S held by the grippers 24 by the winder 8 (S16, see fig. 9), it is not necessary to guide the steel strip S to the mandrel 14 of the winder 8 by the guide 13. Therefore, at this stage, for example, as shown in fig. 9, the position, orientation, and shape of the guide 13 may be set so that the guide surface 13a of the guide 13 is separated from the steel strip S.
In step S10, the entry slot determining unit 54 (see fig. 3) may determine whether or not the leading end St of the steel strip S enters the slot 22 of the mandrel 14 of the coiler 8 based on the position of the downstream portion Sa of the steel strip S. The position of the downstream portion Sa of the steel strip S may be the position of the steel strip S detected by the first position detector 32 or the second position detector 34. In this case, the entry of the leading end St of the steel strip S into the slot 22 of the mandrel 14 can be detected based on the position of the downstream portion Sa of the steel strip S, and therefore, based on the detection result, the reverse rotation of the mandrel 14 of the winder 8 can be appropriately stopped in a state where the leading end St of the steel strip S enters the slot 22. Thereby, in step S16 of the configuration, the leading end portion of the steel strip S can be easily appropriately gripped by the grippers 24 of the winder 8.
In step S10, whether or not the leading end St of the steel strip S has entered the slot 22 of the mandrel 14 of the coiler 8 may be determined as follows, for example.
In one embodiment, the entry slot determining unit 54 determines that the leading end St of the steel strip S enters the slot 22 of the mandrel 14 of the coiler 8 if the position of the downstream portion Sa of the steel strip S is detected to be raised during the rotation of the mandrel 14 of the coiler 8 in the opposite direction.
As shown in fig. 10, in step S8, the reverse rotation of the mandrel 14 of the winder 8 is started (time t14 in fig. 10), and at time t15 after a lapse of time, the position in the vertical direction of the downstream portion Sa of the steel strip S (the position detected by the first position detector 32) is lowered downward. This shows a case where the leading end St of the steel strip S enters the slot 22 at time t15 (the state shown in fig. 7). When the rotation of the mandrel 14 of the winder 8 in the opposite direction is continued, the downstream portion Sa of the steel strip S is pushed upward along with the rotation of the mandrel 14 of the winder 8 in the opposite direction, and as a result, the position of the downstream portion Sa of the steel strip S in the vertical direction is raised at time t16 (the state shown in fig. 8). The reason why the downstream portion Sa of the steel strip S is pushed upward in this manner is: the front end St of the steel strip S enters the slot 22, and the front end of the steel strip S is forced to move from the bottom surface of the slot 22. Therefore, during the rotation of the mandrel 14 of the coiler 8 in the opposite direction, the position of the downstream portion Sa of the steel strip S is raised, and it can be determined that the leading end St of the steel strip S has entered the slot 22 of the mandrel 14 of the coiler 8.
In one embodiment, the entry slot determining unit 54 may determine that the leading end St of the steel strip S enters the slot 22 of the mandrel 14 of the coiler 8 when the position of the downstream portion Sa of the steel strip S changes from descending to ascending during the rotation of the mandrel 14 of the coiler 8 in the opposite direction.
As is apparent from the graph of fig. 10, from the start of feeding the steel strip S in step S2 (i.e., from time t 10) to the rise of the position of the downstream portion Sa of the steel strip S at time t16, the position of the downstream portion Sa of the steel strip S intermittently falls without substantially rising. Thus, the position of the downstream portion Sa of the steel strip S changes from descending to ascending, and it can be determined that the leading end St of the steel strip S has entered the slot 22 of the mandrel 14 of the coiler 8.
In one embodiment, the entry slot determining unit 54 determines that the tip St of the steel strip S enters the slot 22 of the mandrel 14 of the coiler 8 if the position of the downstream portion Sa of the steel strip S is detected to retreat during the rotation of the mandrel 14 of the coiler 8 in the opposite direction.
As shown in fig. 11, in step S8, the reverse rotation of the mandrel 14 of the winder 8 is started (time t14 in fig. 11), and at time t15 after a lapse of time, the horizontal position (the position detected by the second position detector 34) of the downstream portion Sa of the steel strip S is retracted. This shows a case where the leading end St of the steel strip S enters the slot 22 of the mandrel 14 at time t15 (the state shown in fig. 7). Then, when the reverse rotation of the winder 8 is continued, the position of the downstream portion Sa of the steel strip S in the horizontal direction gradually continues to retreat from time t15 to t16 with the reverse rotation of the mandrel 14 of the winder 8 (the state shown in fig. 8). The reason why the position of the downstream portion Sa of the steel strip S is retracted in this manner is: the tip St of the steel strip S enters the slot 22, and the tip of the steel strip S is forced to move from the bottom surface of the slot 22. The horizontal positional retreat means a position that is moved in the horizontal direction so as to be closer to the delivery portion (the rolling mill 10 or the like; a device located on the upstream side in the conveyance direction of the strip S than the mandrel 14 of the coiler 8) from the mandrel 14 of the coiler 8.
Therefore, during the rotation of the mandrel 14 of the coiler 8 in the opposite direction, the position of the downstream portion Sa of the steel strip S is retreated, and it can be determined that the leading end St of the steel strip S enters the slot 22 of the mandrel 14 of the coiler 8.
In one embodiment, the entry slot determining unit 54 may determine that the leading end St of the steel strip S enters the slot 22 of the mandrel 14 of the coiler 8 when the position of the downstream portion Sa of the steel strip S changes from forward to backward during the rotation of the mandrel 14 of the coiler 8 in the opposite direction.
As is apparent from the graph of fig. 11, from the start of the feeding of the steel strip S in step S2 (i.e., from time t 10) until the start of the retreat of the position of the downstream portion Sa of the steel strip S at time t15, the position of the downstream portion Sa of the steel strip S intermittently advances without greatly retreating. Accordingly, the position of the downstream portion Sa of the steel strip S changes from forward to backward, and it can be determined that the leading end St of the steel strip S enters the slot 22 of the mandrel 14 of the coiler 8.
Fig. 12 is a diagram for explaining changes in the position and the like of the guide 13 according to the embodiment. Fig. 13 and 14 are flowcharts illustrating changes in the position of the guide 13 and the like according to the embodiment.
In some embodiments, the controller 50 can change at least one of the position, orientation, and shape of the guide 13 based on the position of the downstream portion Sa in the steel strip S. Fig. 11 shows that the orientation of the guide 13, that is, the angle θ of the guide surface 13a with respect to the horizontal direction can be changed.
As shown in fig. 12, the position and shape of the downstream portion Sa of the steel strip S are changed by changing the position of the guide 13 and the like (the orientation of the guide 13 in fig. 12). Therefore, by appropriately changing at least one of the position, orientation, and shape of the guide 13 based on the position of the downstream portion Sa of the steel strip S, the position and shape of the leading end portion of the steel strip S can be adjusted so that the leading end St of the steel strip S easily enters the slot 22 of the mandrel 14. For example, if the leading end St of the steel strip S fed toward the mandrel 14 of the winder 8 can be brought close to a specific position on the surface 14a of the mandrel 14 of the winder 8 (for example, a portion on the winding direction downstream side of the uppermost portion 14b on the upper surface 14a of the mandrel 14) by adjusting the position of the guide 13 or the like, when the mandrel 14 of the winder 8 is rotated in the opposite direction in the above-described step S8, the leading end St of the steel strip S easily enters the insertion groove 22 of the mandrel 14 of the winder 8. Therefore, according to the above-described embodiment, the leading end St of the steel strip S can be more reliably inserted into the insertion slot of the mandrel 14 of the coiler 8 by appropriately changing the position of the guide 13 and the like.
In one embodiment, the control device 50 is configured to: at least one of the position, orientation, and shape of the guide 13 is changed by feedback control based on the position of the downstream portion Sa in the steel strip S so that the downstream portion Sa in the steel strip S passes through one or more predetermined regions in the horizontal direction and the vertical direction.
More specifically, as shown in the flowchart of fig. 13, for example, first, the position of the downstream portion Sa of the steel strip S is detected by the first position detector 32 (and/or the second position detector 34) while the steel strip S is fed by the feeding portion through the guide 13 toward the mandrel 14 of the winder 8 (S102; corresponding to S2 of fig. 4) (S104). When the position of the downstream portion Sa of the steel strip S detected in step S104 is within the predetermined range Rv (and/or Rh), the feeding of the steel strip S is continued in this state (S102). On the other hand, when the position of the downstream portion Sa of the steel strip S detected in step S104 is out of the predetermined range Rv (or Rh), the position of the guide 13 and the like (here, the angle of the guide surface 13a with respect to the horizontal direction (guide angle)) are appropriately changed (S108), and the steel strip S is fed out. The sequence of steps S102 to S108 is repeated until the tip St of the steel strip S comes into contact with the surface 14a of the mandrel 14 of the winder 8, or until the distance between the tip St of the steel strip S and the surface 14a of the mandrel 14 of the winder 8 reaches a predetermined length. In this way, the downstream portion Sa of the steel strip S can pass through one or more predetermined regions (Rv and/or Rh described above) in the horizontal direction and the vertical direction.
The predetermined region (for example, Rv or Rh) may be determined according to the steel type, thickness, and the like of the steel strip S.
According to the above embodiment, at least one of the position, orientation, and shape of the guide 13 is changed so that the downstream portion Sa of the steel strip S passes through one or more predetermined regions (for example, Rv or Rh) in the horizontal direction and the vertical direction. Thereby, the position and shape of the tip end portion of the steel strip S can be adjusted so that the tip end St of the steel strip S can easily enter the insertion groove 22 of the mandrel 14. This enables the leading end St of the steel strip to be more reliably inserted into the insertion slot 22 of the mandrel 14 of the winder 8.
In one embodiment, the control device 50 is configured to: at least one of the position, orientation, and shape of the guide 13 is set based on a table indicating a correspondence relationship between the hardness or thickness of the steel strip S and the position of the leading end 13b of the guide 13, and the table is corrected based on the position of the downstream side portion Sa of the steel strip S.
More specifically, the description will be made with reference to fig. 14. In the following examples, a table showing the correspondence relationship between the hardness or thickness of the steel strip S and the position of the leading end 13b of the guide 13 and the amount of the steel strip S fed (the length from a predetermined position) is stored in the storage unit 70 (see fig. 3). The storage unit 70 may be a storage device such as a hard disk or SSD.
In this embodiment, before the start of feeding the steel strip S to the mandrel 14 of the winder 8 (corresponding to S2 in fig. 4), the table acquisition unit 58 of the control device 50 reads the position of the tip 13b of the guide 13 and the feed amount of the steel strip S from a predetermined position, which correspond to the hardness of the steel strip S to be wound and the hardness and/or thickness of the steel strip, from the table stored in the storage unit 70 (S202). Here, the predetermined position may be a position of the detector 40 for detecting the passage of the tip St of the steel strip S on the delivery side of the rolling mill 10.
Then, the guide control portion 68 sets the position of the guide 13 and the like (here, the angle of the guide surface 13a with respect to the horizontal direction (guide angle)) to the position of the leading end 13b of the guide 13 read from the table (S202). Further, the feeding control unit 66 feeds the steel strip S toward the mandrel 14 of the winder 8 by the feeding unit by the feeding amount read from the table and stops (S204). Here, the delivery amount of the steel strip S generated by the delivery unit can be obtained by time integration of the speed of the steel strip S on the delivery side of the rolling mill 10 detected by the speed sensor 38 from the time when the tip St of the steel strip S is detected by the detector 40.
Next, in a state where the feeding of the steel strip S is stopped in step S204, the position of the downstream portion Sa of the steel strip S is detected by using the first position detector 32 (and/or the second position detector 34). When the position of the downstream portion Sa thus detected is within the predetermined range based on the position of the leading end 13b of the guide 13 read from the table (yes in S206), the steel strip S is further fed out, and the steel strip S is wound up in the order described above (S212; corresponding to S2 to S16 in fig. 4).
On the other hand, when the position of the downstream portion Sa detected as described above is outside the predetermined range based on the position of the leading end 13b of the guide 13 read from the table (no in S206), the position of the guide 13 and the like (here, the angle of the guide surface 13a with respect to the horizontal direction (guide angle)) are manually changed (S208), and the table correcting unit 60 of the control device 50 rewrites the position of the leading end 13b of the guide 13 stored in the table of the storage unit 70 to the value changed in step S208 (S210) so that the position of the downstream portion Sa is within the predetermined range. The steel strip S is then fed out and wound in the above-described order (S212; corresponding to S2-S16 in FIG. 4). In this case, the position of the guide 13 and the like are set based on the corrected table in the next and subsequent winding of the steel strip S.
According to the above embodiment, at least one of the position, orientation, and shape of the guide 13 is set based on the table indicating the correspondence between the hardness or thickness of the steel strip S and the position of the leading end 13b of the guide 13, and the table is corrected based on the position of the downstream portion Sa of the steel strip S. Therefore, by setting the position, orientation, or shape of the guide 13 based on the table thus corrected, the position or shape of the leading end portion of the steel strip S can be adjusted so that the leading end St of the steel strip S easily enters the insertion groove 22 of the mandrel 14. This enables the leading end St of the steel strip S to be more reliably inserted into the insertion slot 22 of the mandrel 14 of the winder 8.
The following describes a winding machine and a method of operating the winding machine according to some embodiments.
(1) A winding device (2) according to at least one embodiment of the present invention includes:
a winder (8) having a mandrel (14) comprising a slot (22) capable of receiving a leading end (St) of a steel strip (S) and for winding the steel strip;
a guide (13) disposed above the winder for guiding the steel strip to the winder; and
a control device (50) for controlling the rotation of the winder,
the control device is configured to: rotating the winder in a direction opposite to a winding direction so that the leading end of the steel strip fed out from the guide enters the slot.
According to the structure of the above (1), the winder is rotated in the direction opposite to the winding direction so that the leading end of the steel strip guided by the guide located above the winder enters the slot of the mandrel of the winder, and therefore, even if the relative positional relationship between the leading end of the steel strip and the slot is not finely adjusted, the leading end of the steel strip can automatically enter the slot. Therefore, the leading end of the steel strip can be more reliably made to enter the slot of the mandrel of the winder in a short time, and the production efficiency of the product can be improved.
(2) In several embodiments, in the structure of the above (1),
the control device is configured to: starting the reverse rotation of the winder based on a position of a portion (Sa) of the steel strip on a downstream side of the guide in a conveying direction of the steel strip.
According to the configuration of the above (2), since the reverse rotation of the winder is started based on the position of the portion of the steel strip on the downstream side of the guide in the conveying direction, the leading end of the steel strip can be more reliably inserted into the insertion slot of the mandrel 14 of the winder.
(3) In several embodiments, in the structure of the above (2),
the control device is configured to: the method is characterized in that a determination is made as to whether or not the leading end of the steel strip is in contact with the surface (14a) of the mandrel (14) of the winder based on the position of the portion on the downstream side of the steel strip, and the reverse rotation of the winder is started based on the result of the determination.
According to the structure of the above (3), the reverse rotation of the winder is started based on the determination result of whether or not the leading end of the steel strip is in contact with the surface of the mandrel of the winder, and therefore the leading end of the steel strip can be more reliably inserted into the slot of the mandrel of the winder.
(4) In several embodiments, in any one of the structures (1) to (3) above,
the control device is configured to: the winder is rotated in the reverse direction in a state where the leading end of the steel strip is in contact with a portion of the upper surface of the mandrel of the winder on the downstream side in the winding direction from the uppermost portion (14 b).
According to the configuration of the above (4), since the winder is rotated in the reverse direction in a state where the leading end of the steel strip is in contact with the portion of the upper surface of the mandrel of the winder on the downstream side in the winding direction from the uppermost portion, the leading end of the steel strip can be more reliably inserted into the slot of the mandrel of the winder.
(5) In several embodiments, in any one of the structures (1) to (4) above,
the coiling facility includes a feeding unit (for example, the rolling mill 10 or the uncoiler 4 described above) that is provided on the upstream side of the guide in the strip conveying direction and feeds the strip toward the coiling machine,
the control device is configured to: the feeding of the steel strip by the feeding unit is stopped based on a position of a portion of the steel strip on a downstream side of the guide in a conveying direction of the steel strip, and the winder is rotated in the reverse direction in a state where the feeding of the steel strip is stopped.
According to the configuration of the above (5), since the feeding of the steel strip is stopped based on the position of the portion of the steel strip on the downstream side of the guide, the feeding of the steel strip is stopped when the leading end of the steel strip is at an appropriate position where the leading end of the steel strip easily enters the slot, and the leading end of the steel strip can be more reliably caused to enter the slot of the mandrel of the winding machine.
(6) In several embodiments, in any one of the structures (1) to (5) above,
the control device is configured to: the reverse rotation of the winder is stopped based on a position of a portion of the steel strip on a downstream side of the guide in a conveying direction of the steel strip.
According to the configuration of the above (6), the reverse rotation of the winder can be appropriately stopped in a state where the leading end of the steel strip enters the insertion slot, based on the position of the portion of the steel strip on the downstream side of the guide. Thereby, the leading end portion of the steel strip can be easily and appropriately gripped by the gripper of the coiler.
(7) In several embodiments, in the structure of the above (6),
the control device is configured to: in the reverse-direction rotation of the winder, if it is detected that the position of the portion of the steel strip rises, the reverse-direction rotation of the winder is stopped.
According to the configuration of the above (7), it is possible to detect that the leading end of the steel strip enters the slot of the mandrel based on the position of the portion of the steel strip on the downstream side of the guide being raised during the reverse rotation of the winder. Thus, based on the detection result, the reverse rotation of the winder can be stopped in a state where the leading end of the steel strip enters the slot of the mandrel. This enables the gripper of the coiler to more reliably grip the leading end of the steel strip.
(8) In several embodiments, in the structure of the above (6),
the control device is configured to: in the reverse-direction rotation of the winder, if it is detected that the position of the portion of the steel strip is retreated, the reverse-direction rotation of the winder is stopped.
According to the configuration of the above (8), it is possible to detect that the leading end of the steel strip enters the slot of the mandrel based on the position of the portion of the steel strip on the downstream side of the guide retreating during the reverse rotation of the winder. Thus, based on the detection result, the reverse rotation of the winder can be stopped in a state where the leading end of the steel strip enters the slot of the mandrel. This enables the gripper of the coiler to more reliably grip the leading end of the steel strip.
(9) In several embodiments, in any one of the structures (1) to (8) above,
the control device is configured to: at least one of the position, orientation, and shape of the guide is changed based on the position of a portion of the steel strip on the downstream side of the guide in the conveying direction of the steel strip.
According to the configuration of the above (9), by changing at least one of the position, orientation, and shape of the guide based on the position of the portion of the steel strip on the downstream side of the guide, the position and shape of the leading end portion of the steel strip can be adjusted so that the leading end of the steel strip can easily enter the insertion slot. Thus, the leading end of the steel strip can be more reliably inserted into the insertion slot of the mandrel of the winder.
(10) In several embodiments, in the structure of the above (9),
the control device is configured to: at least one of the position, orientation, and shape of the guide is changed so that a portion of the steel strip on the downstream side of the guide in the conveying direction of the steel strip passes through one or more predetermined regions in the horizontal direction and the vertical direction.
According to the configuration of the above (10), by changing at least one of the position, orientation, and shape of the guide so that the portion of the steel strip on the downstream side of the guide passes through one or more predetermined regions in the horizontal direction and the vertical direction, the position and shape of the leading end portion of the steel strip can be adjusted so that the leading end portion of the steel strip can easily enter the slot. Thus, the leading end of the steel strip can be more reliably inserted into the insertion slot of the mandrel of the winder.
(11) In several embodiments, in the structure of the above (9),
the control device is configured to:
setting at least one of a position, an orientation, and a shape of the guide based on a table representing a correspondence between a hardness or a thickness of the steel strip and a position of a leading end of the guide, and
-modifying said table based on the position of said portion of said steel strip.
According to the configuration of the above (11), at least one of the position, orientation, and shape of the guide is set based on the table indicating the correspondence between the hardness or thickness of the steel strip and the position of the leading end of the guide, and the table is corrected based on the position of the portion of the steel strip on the downstream side of the guide. Therefore, by setting the position, orientation, or shape of the guide based on the table thus corrected, the position or shape of the leading end portion of the steel strip can be adjusted so that the leading end portion of the steel strip easily enters the insertion groove of the mandrel. Thus, the leading end of the steel strip can be more reliably inserted into the insertion slot of the mandrel of the winder.
(12) In several embodiments, in any one of the structures (1) to (11) above,
the winding device is provided with a gripper (24) for gripping a front end portion of the steel strip entering the slot,
the control device is configured to: and if the leading end portion of the steel strip enters the slot by the rotation of the winding machine in the opposite direction, operating the gripper to grip the leading end portion of the steel strip.
According to the configuration of the above (12), since the leading end portion of the steel strip that enters the slot of the mandrel of the coiler by rotating the coiler in the reverse direction is gripped by the gripper, the steel strip can be appropriately coiled by rotating the coiler in the coiling direction in this state.
(13) In several embodiments, in any one of the structures (1) to (12) above,
the take-up device includes a position detector (e.g., the first position detector or the second position detector) configured to detect a position in a horizontal direction or a vertical direction of a portion of the steel strip fed out from the guide on a downstream side of the guide in a conveying direction of the steel strip,
the control device is configured to: controlling rotation of the winder based on a detection result of the position detector.
According to the configuration of the above (13), since the rotation of the winder is controlled based on the detection result of the position detector, the leading end of the steel strip can be automatically inserted into the slot of the mandrel by rotating the winder in the opposite direction based on the detection result. Therefore, the leading end of the steel strip can be more reliably made to enter the insertion slot of the mandrel of the winder in a short time.
(14) In an operation method of a winding device according to at least one embodiment of the present invention, the winding device includes: a winder comprising a mandrel (14) having a slot capable of receiving the leading end of the steel strip; and a guide disposed above the winder, wherein,
the operation method of the winding device comprises the following steps:
feeding a leading end of the steel strip from the guide toward the winder (S2); and
rotating the winder in a direction opposite to the winding direction so that the leading end of the steel strip fed out from the guide enters the slot (S8).
According to the method of the above (14), the winder is rotated in the direction opposite to the winding direction so that the leading end of the steel strip guided by the guide located above the winder enters the insertion slot of the mandrel of the winder, and therefore, even if the relative positional relationship between the leading end of the steel strip and the insertion slot is not finely adjusted, the leading end of the steel strip can be automatically entered into the insertion slot of the mandrel. Therefore, the leading end of the steel strip can be more reliably made to enter the slot of the mandrel of the winder in a short time, and the production efficiency of the product can be improved.
(15) In several embodiments, in the method of (14) above,
the operation method of the winding device further comprises the following steps:
detecting a position of a portion of the steel strip on a downstream side of the guide in the conveying direction of the steel strip (e.g., the above-described S10): and
stopping the reverse direction rotation of the winder based on the detected position (S12).
According to the method of the above (15), the reverse rotation of the winder can be appropriately stopped in a state where the leading end of the steel strip enters the insertion slot of the mandrel, based on the position of the portion of the steel strip on the downstream side of the guide. This makes it possible to easily grasp the leading end of the steel strip appropriately by the gripper of the winding machine.
While the embodiments of the present invention have been described above, the present invention is not limited to the above embodiments, and includes a mode in which the above embodiments are modified and a mode in which these modes are appropriately combined.
In the present specification, expressions such as "in a certain direction", "along a certain direction", "parallel", "orthogonal", "central", "concentric", or "coaxial" which indicate relative or absolute arrangements indicate not only an arrangement as strict as possible but also a state in which the elements are relatively displaced by an angle or a distance to the extent of tolerance or obtaining the same function.
For example, expressions indicating states in which objects are equal, such as "identical", "equal", and "homogeneous", indicate not only states in which objects are exactly equal but also states in which tolerances or differences in the degree to which the same functions can be obtained are present.
In the present specification, the expressions indicating shapes such as a square shape and a cylindrical shape indicate not only shapes such as a square shape and a cylindrical shape in a strict geometrical sense but also shapes including a concave-convex portion, a chamfered portion, and the like within a range in which similar effects can be obtained.
In the present specification, the expression "including", "including" or "having" a component is not an exclusive expression excluding the presence of other components.
Claims (15)
1. A winding device is provided with:
a winding machine including a mandrel having a slot capable of receiving a leading end of a steel strip, the winding machine being configured to wind the steel strip;
a guide for guiding the steel strip toward the winder; and
a control device for controlling rotation of the winder,
the control device is configured to: rotating the winder in a direction opposite to a winding direction so that the leading end of the steel strip fed out from the guide enters the slot.
2. The winding device according to claim 1,
the control device is configured to: starting the reverse rotation of the winder based on a position of a portion of the steel strip on a downstream side of the guide in a conveying direction of the steel strip.
3. The winding device according to claim 2,
the control device is configured to: the determination as to whether or not the leading end of the steel strip is in contact with the surface of the mandrel of the winder is made based on the position of the portion on the downstream side of the steel strip, and the rotation of the winder in the opposite direction is started based on the result of the determination.
4. The winding device according to any one of claims 1 to 3,
the control device is configured to: the winder is rotated in the reverse direction in a state where the leading end of the steel strip is in contact with a portion of the upper surface of the mandrel of the winder on the downstream side in the winding direction from the uppermost portion.
5. The winding device according to any one of claims 1 to 4,
the winding device includes a feeding unit provided upstream of the guide in the conveying direction of the steel strip and configured to feed the steel strip toward the winding machine,
the control device is configured to: the feeding of the steel strip by the feeding unit is stopped based on a position of a portion of the steel strip on a downstream side of the guide in a conveying direction of the steel strip, and the winder is rotated in the reverse direction in a state where the feeding of the steel strip is stopped.
6. The winding device according to any one of claims 1 to 5,
the control device is configured to: the reverse rotation of the winder is stopped based on a position of a portion of the steel strip on a downstream side of the guide in a conveying direction of the steel strip.
7. The winding device according to claim 6,
the control device is configured to: in the reverse-direction rotation of the winder, if it is detected that the position of the portion of the steel strip rises, the reverse-direction rotation of the winder is stopped.
8. The winding device according to claim 6,
the control device is configured to: in the reverse-direction rotation of the winder, if it is detected that the position of the portion of the steel strip is retreated, the reverse-direction rotation of the winder is stopped.
9. The winding device according to any one of claims 1 to 8,
the control device is configured to: at least one of the position, orientation, and shape of the guide is changed based on the position of a portion of the steel strip on the downstream side of the guide in the conveying direction of the steel strip.
10. The winding device according to claim 9,
the control device is configured to: at least one of the position, orientation, and shape of the guide is changed so that a portion of the steel strip on the downstream side of the guide in the conveying direction of the steel strip passes through one or more predetermined regions in the horizontal direction and the vertical direction.
11. The winding device according to claim 9,
the control device is configured to:
setting at least one of a position, an orientation, and a shape of the guide based on a table representing a correspondence between a hardness or a thickness of the steel strip and a position of a leading end of the guide, and
-modifying said table based on the position of said portion of said steel strip.
12. The winding device according to any one of claims 1 to 11,
the winding device is provided with a gripper for gripping the front end portion of the steel strip entering the slot,
the control device is configured to: and if the leading end portion of the steel strip enters the slot by the rotation of the winding machine in the opposite direction, operating the gripper to grip the leading end portion of the steel strip.
13. The winding device according to any one of claims 1 to 12,
the take-up device includes a position detector configured to detect a position in a horizontal direction or a vertical direction of a portion of the steel strip fed out from the guide on a downstream side of the guide in a conveying direction of the steel strip,
the control device is configured to: controlling rotation of the winder based on a detection result of the position detector.
14. A method of operating a winding apparatus, the winding apparatus comprising: a winder including a mandrel having a slot capable of receiving a leading end of a steel strip; and a guide for guiding the steel strip toward the winder, wherein,
the operation method of the winding device comprises the following steps:
feeding a leading end of the steel strip from the guide toward the winder; and
rotating the winder in a direction opposite to a winding direction so that the leading end of the steel strip fed out from the guide enters the slot.
15. The method of operating a winding plant according to claim 14,
the operation method of the winding device further comprises the following steps:
detecting a position of a portion of the steel strip on a downstream side of the guide in a conveying direction of the steel strip; and
stopping the reverse direction rotation of the winder based on the detected position.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2020-103642 | 2020-06-16 | ||
| JP2020103642A JP6986114B1 (en) | 2020-06-16 | 2020-06-16 | Winding equipment and operating method of winding equipment |
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| CN113798345A true CN113798345A (en) | 2021-12-17 |
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| CN202011610797.9A Pending CN113798345A (en) | 2020-06-16 | 2020-12-29 | Winding device and method for operating winding device |
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| CN (1) | CN113798345A (en) |
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|---|---|---|---|---|
| JPH0494814A (en) * | 1990-08-10 | 1992-03-26 | Kawatetsu Galvanizing Co Ltd | Coiling method of strip metal |
| JPH0542323A (en) * | 1991-08-08 | 1993-02-23 | Nippon Steel Corp | Guidetable for tension reel |
| JP2007196268A (en) * | 2006-01-27 | 2007-08-09 | Jfe Steel Kk | Tension reel having gripper, and method and apparatus for taking up metallic strip |
| CN101479055A (en) * | 2006-06-28 | 2009-07-08 | 西马克·德马格公司 | Method and device for rolling up a metallic strip |
| CN206244197U (en) * | 2016-12-08 | 2017-06-13 | 宁波市博祥新材料科技有限公司 | Steel band reel |
| KR200488326Y1 (en) * | 2018-09-14 | 2019-01-14 | 주식회사 서울엔지니어링 | Strip winding apparatus for preventing reel mark |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4835256Y1 (en) * | 1969-07-25 | 1973-10-24 | ||
| JPS52117854A (en) * | 1976-03-31 | 1977-10-03 | Kawasaki Steel Co | Method of retaining strip material on gripper for reel |
-
2020
- 2020-06-16 JP JP2020103642A patent/JP6986114B1/en active Active
- 2020-12-29 CN CN202011610797.9A patent/CN113798345A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0494814A (en) * | 1990-08-10 | 1992-03-26 | Kawatetsu Galvanizing Co Ltd | Coiling method of strip metal |
| JPH0542323A (en) * | 1991-08-08 | 1993-02-23 | Nippon Steel Corp | Guidetable for tension reel |
| JP2007196268A (en) * | 2006-01-27 | 2007-08-09 | Jfe Steel Kk | Tension reel having gripper, and method and apparatus for taking up metallic strip |
| CN101479055A (en) * | 2006-06-28 | 2009-07-08 | 西马克·德马格公司 | Method and device for rolling up a metallic strip |
| CN206244197U (en) * | 2016-12-08 | 2017-06-13 | 宁波市博祥新材料科技有限公司 | Steel band reel |
| KR200488326Y1 (en) * | 2018-09-14 | 2019-01-14 | 주식회사 서울엔지니어링 | Strip winding apparatus for preventing reel mark |
Also Published As
| Publication number | Publication date |
|---|---|
| JP6986114B1 (en) | 2021-12-22 |
| JP2021194685A (en) | 2021-12-27 |
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