JPH10146609A - Equipment for rolling hot strip and method for rolling hot strip - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide rolling equipment for hot strips and rolling method of the hot strips capable of surely winding the tip of the strip around a down-coiler without generating a flying phenomenon. SOLUTION: A strip restraining device 9 is provided with a clamping device 13 with which the tip of the strip 3 can be clamped, a pair of arms 14 which are respectively movable back and forth, up and down and sideways to the advancing direction of the strip 3 and gripper 15 with which the strip 3 can be clamped on this side of the clamping device 13 to the advancing direction of the strip 3. On the inlet side of the down-coiler 4, an upper introducing member 10 for supporting the strip 3 having narrower width than the width of the gripper 15 from the upside and lower introducing member 11 for supporting the strip 3 from the underside are provided.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hot strip rolling equipment for winding a strip rolled by a finishing mill into a downcoiler, and in particular, to reliably remove the tip of the strip without causing a flying phenomenon. It is designed to be wrapped around a down coiler.

[0002]

2. Description of the Related Art Conventionally, in this type of hot rolling equipment, a strip rolled to a predetermined thickness by a finish rolling mill is connected to a finish rolling mill before being wound up on a mandrel of a down coiler. The strip is cooled to a predetermined winding temperature by a strip cooling line provided between the down coiler. This strip cooling line is composed of a run-out table including hundreds of driven roller tables and the like, and a water spray cooling device or a water laminar cooling device. Then, the lower surface of the strip transported on the run-out table is cooled by cooling water injected from between the rollers of the run-out table, and the upper surface of the strip is cooled by cooling water injected from above the run-out table. It has become.

In such a hot rolling facility, when the strip is conveyed at a high speed by a roller table type run-out table, a so-called flying phenomenon occurs in which the tip of the strip is lifted upward, so that the tip of the strip is wound around a down coiler. It may cause trouble. For this reason, various devices for solving the above-mentioned inconvenience have been proposed.

For example, as a first conventional example, Japanese Patent Laid-Open No.
In the strip transport device disclosed in Japanese Patent Application Laid-Open No. 212113/1990, in a strip transport device in which a plurality of rollers for loading and transporting a strip are separated from each other in parallel and continuously arranged rotatably, the pair of left and right guides is A pair of upper and lower guides arranged above and below, and a pair of upper and lower left and right guides which are run along each pair of guides to pinch and guide the strips from above and below Guide means are provided respectively.

[0005] As a second conventional example, Japanese Patent Laid-Open Publication No.
In the threading guide device before the down-coiler disclosed in Japanese Patent Publication No. 17, the hot-run table provided on the lower side of the threading line before the down-coiler that winds the hot-rolled material cut at the output side of the finishing mill is provided. An air blow pipe is provided above the plate line to blow and guide gas to the hot-rolled material.

As a third conventional example, Japanese Patent Application Laid-Open No. 7-2047
In the apparatus for suppressing the uplift of the strip at the time of conveyance disclosed in Japanese Patent Publication No. 23, a traveling device that travels at the same speed or substantially the same speed as the transport speed of the leading end of the strip that is transported through the finishing mill, And a strip tip guide member that is provided above and that is provided above the strip upper surface that is opposed to the upper surface of the strip to be conveyed and that can be prevented from rolling up.

A fourth conventional example is disclosed in Japanese Patent Application Laid-Open No.
In the strip passing device disclosed in the above publication, a guide in which a chain, a wire, or a roller can run inside or near the bearing portion of the threading roll or roller of the process line or the bearing portion is provided. At the position where tension can be applied to the chain or wire or rope or the strip can be tensioned by snubber roll or wire or pinch roll descent,
A strip clamping device is connected to the chain or wire or rope, and an initial tension adjusting device and a constant tension control device for controlling the tension of the chain or wire or rope are provided. A sensor is provided at each of the position and the stop position, so that a series of threading operations is sequence-controlled.

A fifth conventional example is disclosed in Japanese Patent Laid-Open No. 6-1825.
In the method of manufacturing a metal ribbon disclosed in Japanese Patent Publication No. 04, a molten metal is injected onto the surface of a cooling roll that rotates at high speed, cooled and solidified to form a metal ribbon, and the ribbon is separated from the cooling roll. Next, the tip of the ribbon is captured by a pinch roll, the pinch roll is moved while applying tension to the ribbon, the tip of the ribbon is transported to a winding device, and the winding device winds the metal ribbon into a coil shape. A method of manufacturing, wherein at least a part of the guiding section of the ribbon, which extends from the ribbon stripping point of the cooling roll to the pinch roll, is charged with an equal amount of charge and positively and negatively charged by a pair of charged bodies. The attitude of the ribbon is controlled by sandwiching the ribbon in the width direction and applying electrostatic power in the width direction of the ribbon passing through the guidance section.

[0009]

However, the above-mentioned conventional hot strip rolling equipment has the following problems.

In the first conventional example, when the acceleration zone and the deceleration zone are actually designed, the turning radius and the distance become finite, and the rolling zone or winding machine cannot be sufficiently approached. However, there is a possibility that flying will occur in the empty transport area before and after the transport device.

In the second and third prior arts, since the function of pulling the leading end of the strip is not provided, it is not possible to prevent the occurrence of shape defects at the time of cooling, and it is necessary to control the roll advance rate skillfully. It is.

In the fourth conventional example, a large tension cannot be applied to the strip, it is difficult to reduce the size and weight of the clamp device, and high-speed threading cannot be performed.

In the fifth conventional example, since an electrostatic field is used as a non-contact holding force, it is difficult to apply it to a strip having a thickness of 100 microns or more.

In view of the above, the present invention has been proposed in view of the above-mentioned problems of the prior art, and is a hot strip capable of reliably winding the end of a strip around a down coiler without causing a flying phenomenon. An object of the present invention is to provide a material rolling equipment and a hot strip rolling method.

[0015]

The present invention has the following means to achieve the above object. The invention according to claim 1 has a finishing mill, a down coiler for winding a strip rolled by the finishing mill, and a strip cooling line provided between the finishing mill and the down coiler. A hot strip comprising a strip restraining device movable from the finishing mill side to the downcoiler side while applying tension to the strip while holding the end of the strip on the strip cooling line; Consists of rolling equipment.

The band restraining device is provided on both sides of the band in the width direction of the band, and can be moved in the front-rear, up-down, left-right directions with respect to the traveling direction of the band. A pair of arms, and a gripper provided at the distal end of the arm and capable of holding the strip in the thickness direction on the front side of the holding device with respect to the traveling direction of the strip.

The entrance side of the down coiler is located above the band cooling line, has a width smaller than the width of both grippers provided at the tips of the pair of arms, and moves the band from above. An upper introduction member to be supported, located below the strip cooling line, and vertically opposed to the upper introduction member,
A lower introduction member for supporting the band from below.

According to a second aspect of the present invention, there is provided a finishing mill, a down coiler for winding a strip rolled by the finishing mill, and a strip cooling line provided between the finishing mill and the down coiler. Having a strip restraining device capable of moving from the finish rolling mill side to the down coiler side while holding the tip of the strip and applying tension to the strip on the strip cooling line. Consists of strip rolling equipment.

The band restraining device is provided on both outer sides of the band in the width direction of the band, and can be moved at least in the front-rear and vertical directions with respect to the traveling direction of the band. A possible pair of arms and an end effector that is provided at the tip of the arm and that can be attracted to the upper surface of the strip on the front side of the holding device with respect to the traveling direction of the strip.

At the entrance side of the downcoiler, there is provided a linear motor positioned below the strip cooling line and capable of propelling while sucking the strip.

The surface of the linear motor has a compressed air outlet for preventing contact between the strip and the linear motor.

The third aspect of the present invention is the first aspect of the present invention.
Using the hot strip rolling equipment according to the described invention, the strip rolled by the finishing mill is transported and cooled on a strip cooling line, and the cooled strip is wound around a down coiler. This is a strip rolling method.

This rolling method comprises the steps of synchronizing the moving speed of the band restraining device with the conveying speed of the band conveyed on the band cooling line, and clamping the leading end of the band by the clamping device; At the front side of the holding device with respect to the traveling direction of the material, the step of clamping the band material by the gripper, releasing the clamping of the band material by the restraining device, and moving the arm toward the rear in the traveling direction of the material material. Moving the tip of the strip from the holding device, lowering the arm, and inserting the tip of the strip between the upper introduction member and the lower introduction member provided on the entry side of the downcoiler; , The arm is moved outward in the width direction of the band, the gripper is retracted, and the end of the band is wound around the down coiler.

The invention according to claim 4 is the above-described claim 2.
Using the hot strip rolling equipment according to the described invention, the strip rolled by the finishing mill is transported and cooled on a strip cooling line, and the cooled strip is wound around a down coiler. This is a strip rolling method.

This rolling method comprises a step of synchronizing the moving speed of the strip restraining device with a transport speed of the strip conveyed on the strip cooling line, and clamping the leading end of the strip by a clamping device; A step of adsorbing and holding the band by the end effector on the front side of the holding device with respect to the traveling direction of the band, and releasing the holding of the band by the restraining device, and moving backward with respect to the traveling direction of the band. Moving the arm to remove the tip of the strip from the holding device, lowering the arm to expose the tip of the strip to the linear motor provided on the entry side of the downcoiler, and holding and holding the strip by the end effector And releasing the compressed air from the compressed air outlet to prevent the contact between the strip and the surface of the linear motor, and winding the tip of the strip around the down coiler.

[0026]

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

(Hot Strip Rolling Equipment) FIG. 1 is an explanatory diagram illustrating a schematic configuration of a hot strip rolling equipment according to the present invention. As shown in FIG. 1, a hot strip rolling equipment 1 according to the present invention includes a finishing mill 2, a down coiler 4 for winding a strip 3 rolled by the finishing mill 2, and a finishing mill 2.
Strip cooling line 5 provided between the machine and the down coiler 4
And

A plurality of pairs of vertically opposed cooling pinch rolls 6 for sandwiching and transporting the strip 3 from above and below are provided on the strip cooling line 5, and cooling is performed while sandwiching the strip 3 from above and below. A plurality of pairs of cooling pads 7 are provided to face each other. The cooling pinch rolls 6 and the cooling pads 7 are alternately arranged in the transport direction of the strip 3 and are mounted so as to be movable in the vertical direction.

A pair of left and right rails 8 are laid from the exit side of the finishing mill 2 to the upper side of the down coiler 4. A strip material restraining device 9 that applies tension to 3 is movably mounted between the finishing mill 2 and above the down coiler 4.

Further, on the entry side of the down coiler 4, an upper introduction member 10 located above the strip cooling line 5 and a strip cooling line 5 for guiding the strip 3 to the down coiler 4.
Is located on the lower side, and faces the upper introduction member 10 vertically.
A lower introduction member 11 for supporting the band 3 from below is provided. The above-described upper introduction member 10 will be described in detail later (shown in FIGS. 21 and 22), but is formed of a plate-like member.
The width of the finishing mill 2 is smaller than the width of the strip 3. The lower introduction member 11 is composed of a roller table having a plurality of rollers, and supports the strip 3 from below with the roller table to guide the strip 3 to the down coiler 4.

(First embodiment of the band material restraining device) Next, FIG.
The first embodiment of the strip restraining device 9 used in the above-described hot strip rolling equipment 1 will be described based on FIG. FIG. 2 is a perspective view showing a first embodiment of the strip restraining device 9 used in the hot strip rolling equipment 1.

As shown in FIG. 2, the band restraining device 9a according to the first embodiment includes a truck 12 running on the rail 8 and a holding device 13 provided on a frame on the rear side of the truck 12. And a pair of arms 1 attached to the left and right frames of the cart 12 and extending toward the rear side of the cart 12.
4 and a gripper 15 provided at the tip of the arm 14 and at the rear side of the holding device 13. In addition, the back side of the trolley 12 refers to the back side of the trolley 12 (the left side in FIG. 2) with respect to the transport direction of the strip 3.

The above-described cart 12 is located below the frame.
It has two sets of wheels 16 for traveling on the rails 8 and can travel on the rails 8 by driving a driving device such as an air cylinder device or a motor (not shown).

The above-described holding device 13 includes a pair of upper and lower pinch rolls 17,
17 and can be moved up and down to approach or separate from each other by driving a driving device such as an air cylinder device (not shown), and each of the pinch rolls 17 and 17 can be moved by a rotary driving device such as a motor (not shown). Can be rotated in opposite directions. Then, by rotating the pinch rolls 17 close to each other and rotating the pinch rolls 17, the leading end of the band 3 is taken in between the pinch rolls 17, 17, or the pinch rolls 17, 17 are pinched.
The tip of the band material 3 can be discharged from between to release the holding.

Each of the arms 14 includes an elevating slider 18 provided on each of the left and right frames of the carriage 12, a left and right slider 19 provided on the outer surface of each of the elevating sliders 18 and a left and right slider 19, respectively. Front and rear sliders 20 provided on the rear side surface so as to be movable left and right, respectively.
And front and rear arms 21 provided on the inner side surfaces of both front and rear sliders 20 so as to be movable back and forth.

Therefore, when the elevating slider 18 is driven, the arm 14 on the front side of the left and right sliders 19 moves up and down. When the left and right sliders 19 are driven, the arm 14 on the front side of the front and rear sliders 20 moves left and right. When the front / rear slider 20 is driven, the front / rear arm 21 moves back and forth. Although not shown, the lifting slider 18, the left and right slider 19, and the front and rear slider 20 are driven by a driving device such as an air cylinder device or a motor.

Each of the above-mentioned grippers 15 has a pair of upper and lower fingers 22, 22 capable of holding the strip 3 in the thickness direction toward the opposing grippers 15.
Although not shown, the fingers 22, 22 are driven by a driving device such as an air cylinder device or a motor. By driving the fingers 22, 22, the band material 3 can be vertically held or released from both sides in the width direction.

(Second embodiment of band restraining device) Next, FIG.
A second embodiment of the strip restraining device 9 used in the above-described hot strip rolling equipment 1 will be described based on FIG. FIG. 3 is a perspective view showing a second embodiment of the strip restraining device 9 used in the hot strip rolling equipment 1 described above.

As shown in FIG. 3, the band restraining device 9b according to the second embodiment differs from the band restraining device 9a according to the first embodiment only in the configuration of the arm 14. Therefore, members having the same functions as those of the band material restraining device 9a according to the first embodiment described above are denoted by the same reference numerals and described.
Alternatively, the description will be omitted, and the configuration of the arm 14 will be described in detail.

Each arm 14 provided on the outside of both the left and right frames of the carriage 12 can move left and right on the left and right sliders 19 provided from the left and right frames toward the left and right sides of the carriage 12 and on the rear side surfaces of the left and right sliders 19 respectively. The front and rear sliders 20 are provided on the inner surfaces of the front and rear sliders 20, and the lifting and lowering turning arms 23 are provided so as to be rotatable vertically.

A gripper 15 is provided on the inner surface at the tip of each of the lifting / lowering swivel arms 23 so as to be vertically rotatable. Each gripper 15 is capable of vertically holding the band 3 in the thickness direction. A pair of fingers 22, 22
It has.

Accordingly, when the left and right sliders 19 are driven, the arm 14 on the front side of the front and rear sliders 20 moves left and right, and when the elevating and lowering arm 23 is turned, the arms 14 on the upper side of the up and down turning arm 23 move up and down. When the gripper 15 is turned, the fingers 22, 22 are turned up and down. When the arm 14 is driven, the rotation of the lifting and lowering arm 23 and the rotation of the gripper 15 are synchronized with each other, and the fingers 22 and 22 are constantly rotated with respect to the strip 3 by rotating them in opposite directions. The strip 3 can be kept substantially parallel, and the strip 3 can be reliably held by the gripper 15. Although not shown, the left and right sliders 19, the front and rear sliders 20, the lifting and lowering arm 2
3. The gripper 15 is driven by a driving device such as an air cylinder device or a motor.

(Third embodiment of the band restraining device) Next, FIG.
A third embodiment of the strip restraining device 9 used in the above-described hot strip rolling equipment 1 will be described based on FIG. FIG. 4 is a perspective view showing a third embodiment of the strip restraining device 9 used in the hot strip rolling equipment 1 described above.

As shown in FIG. 4, the band restraining device 9c according to the third embodiment differs from the band restraining device 9a according to the first embodiment only in the configuration of the arm 14. Therefore, members having the same functions as those of the band restraining device 9a according to the above-described first embodiment or the band restraining device 9b according to the second embodiment are denoted by the same reference numerals, and will be described or described. A description of the configuration will be omitted, and the configuration of the arm 14 will be described in detail.

Each of the arms 14 provided on the outside of the left and right frames of the carriage 12 includes a left and right swing arm 24 provided from the left and right frames toward the left and right sides of the carriage 12, and a left and right swing arm respectively provided at the tips of the left and right swing arms 24. The front and rear sliders 20 are provided so as to be able to move, and the lifting and lowering swing arms 23 are provided on the inner surfaces of the front and rear sliders 20 so as to be movable forward and backward.

A gripper 15 is provided on the inner surface at the tip of each of the lifting / lowering swivel arms 23 so as to be able to turn up and down, and each gripper 15 is capable of holding the strip 3 in the thickness direction. A pair of fingers 22, 22
It has.

Therefore, when the left and right turning arm 24 is driven, the arm 14 on the front side of the front and rear slider 20 turns left and right, and when the front and rear slider 20 is driven, the arm 14 on the front side of the lifting and lowering arm 23 moves forward and backward. When the arm 14 moves and drives the elevating and lowering swivel arm 23, the arm 14 on the front side of the elevating and lowering swivel arm 23 turns up and down, and when the gripper 15 is rotated, the fingers 22 and 22 turn up and down.
When the arm 14 is driven, the lifting and lowering arm 23
By synchronizing the rotational drive of the gripper 15 with the rotational drive of the gripper 15 and rotating the fingers 22 and 22 in opposite directions, the fingers 22, 22 can always be kept substantially parallel to the band material 3, and the gripper 15 The material 3 can be reliably held. Although not shown, the left and right swing arm 2
4. The front / rear slider 20, the vertical swing arm 23, and the gripper 15 are driven by a driving device such as an air cylinder device or a motor.

(Procedure for winding the band) Next, FIGS.
2, a procedure for winding the strip 3 in the hot strip rolling equipment 1 using the above-described strip restraining device 9 will be described. FIG. 5 to FIG. 18 are explanatory diagrams sequentially explaining the operation of the strip restraining device 9 in the hot strip rolling facility 1.
19 is a plan view of the band restraining device 9 corresponding to FIG.
FIG. 20 is a plan view of the band material restraining device 9 corresponding to FIG.
FIG. 21 is a plan view of the band restraining device 9 corresponding to FIG.
FIG. 22 shows a plan view of the band restraining device 9 corresponding to FIG.

In the procedure described below, the operation of the band material restraining device 9b according to the second embodiment shown in FIG. 3 will be described as an example, but the operation will be described in the first embodiment shown in FIG. Even when such a band restraining device 9a and the band restraining device 9c according to the third embodiment shown in FIG. 4 are used, the band 3 can be wound in a similar procedure.

As shown in FIG. 5, on the exit side of the finishing mill 2, a band material restraining device 9 is on standby. At this time, the pinch rolls 17 of the holding device 13
Is moved to a vertically opened position, the fingers 22 of the grippers 15 are moved to a vertically opened position, and the left and right sliders 19 are driven to move the arms 14 to a position close to each other. The slider 20 is driven to move the gripper 15 to a position close to the holding device 13, and the lifting / lowering swing arm 23 and the gripper 15 are driven to move both arms 1.
4 is moved to the upper position.

Next, as shown in FIG. 6, when the leading end of the strip 3 enters between the fingers 22 and 22 and between the pinch rolls 17 of the grippers 15, the bogie 12 is moved.
7 is started to move toward the down coiler 4, and as shown in FIG. 7, both pinch rolls 17, 17 are moved in a direction approaching each other, and the front end of the strip 3 is moved from the width direction by the holding device 13. While holding, the carriage 12 is further accelerated, and the transport speed of the strip 3 and the speed of the carriage 12 are synchronized as shown in FIG.

Next, as shown in FIG. 9, the two pinch rolls 17, 17 are rotated to push the leading end of the strip 3 toward the rear side of the carriage 12, and as shown in FIG. The rotation of the rolls 17, 17 is stopped.

Next, as shown in FIGS. 11 and 19, both fingers 22, 22 of both grippers 15 are brought closer to each other, and both fingers 22, 22 of both grippers 15 in the width direction of the strip 3 are moved. As shown in FIG. 12, the pinch rolls 17, 17 are opened up and down to release the holding of the band 3 by the holding device 13 as shown in FIG.
As shown in FIG. 20, the front and rear slider 21 is driven to cause the front and rear arm 21 to protrude toward the rear side of the carriage 12, and the front end of the strip 3 is extracted from the holding device 13.

Next, as shown in FIG. 14, the lifting / lowering turning arm 23 and the gripper 15 are driven to
The arm 14 on the front side of the vehicle 3 is pivoted downward, and as shown in FIG.
The vertical swing arm 23 and the gripper 15 are driven in synchronization with the vertical movement of 2 to adjust the vertical swing position of the arm 14 on the front side of the vertical swing arm 23.

Next, as shown in FIGS. 16 and 21, the leading end of the band 3 is advanced between the upper introduction member 10 and the lower introduction member 11, and as shown in FIGS.
5, the fingers 22 are opened up and down to release the holding of the band 3, and the left and right sliders 19 are driven to
The arm 14 on the front side of the front and rear slider 20 is moved in a direction away from the left and right, and the carriage 12 is retracted above the down coiler 4 as shown in FIG.

As shown in FIGS. 21 and 22, the upper introduction member 10 has a width at the rear end in the transport direction of the strip 3 smaller than the width when the grippers 15 are separated to the left and right. Has become. Therefore, when the band 3 sandwiched by both grippers 15 is moved under the upper introduction member 10 and the left and right sliders 19 are driven to move both grippers 15 away from each other, both grippers 15 are moved. Can be retracted above the down coiler 4 without contacting the upper introduction member 10.

The band restraining device 9 evacuated above the down coiler 4 moves the rail 8 toward the finishing mill 2 at the time of starting the next winding of the band 3, and performs the above-described procedure. Then, the band 3 is wound up.

(Fourth embodiment of band restraining device) Next, FIG.
A hot strip rolling equipment 1 using a fourth embodiment of the strip restraining device 9 will be described with reference to FIGS. FIG.
FIG. 36 is an explanatory diagram for sequentially explaining the operation of the strip restraining device 9 in the hot strip rolling equipment 1 including the strip restraining device 9 according to the fourth embodiment.

As shown in FIGS. 23 to 36, the band restraining device 9d according to the fourth embodiment is different from the band restraining device 9a according to the first embodiment in that the arm 14 Only the configuration of the lower introduction member differs from a part of the configuration described above, and the upper introduction member is not provided. Accordingly, the band restraining device 9a according to the first, second, and third embodiments described above.
The members having the same functions as those in FIGS.
Part 4 and the lower introduction member will be described in detail.

The hot strip rolling equipment 1 provided with the strip restraining device 9d according to the fourth embodiment has a rail laid between the finishing mill 2 and the down coiler 4, as shown in FIGS. 8, on which the band restraining device 9 d can run.

This band material restraining device 9d is similar to the band material restraining device 9a shown in FIG.
2, a holding device 13 provided on the rear side of the cart 12, and the right and left frames of the cart 12, respectively.
2, a pair of arms 14 extending toward the rear side,
As shown in FIGS. 23 to 36, an end effector 25 is provided at the tip of the arm 14 and on the rear side of the holding device 13. In this embodiment, the left and right sliders 19 for moving the arm 14 right and left may be omitted from the constituent members of the arm 14. Further, the rear side of the carriage 12 refers to the rear side of the carriage 12 with respect to the transport direction of the strip 3.

The trolley 12 has two sets of wheels 16 for traveling on the rails 8 below the frame, similar to the belt restraining device 9a shown in FIG. 2, and is not shown. The vehicle can travel on the rails 8 by driving a driving device such as an air cylinder device or a motor.

The above-mentioned holding device 13 is composed of a pair of upper and lower pinch rolls 17, 17 laid over the left and right frames of the carriage 12, similarly to the band material restraining device 9 a shown in FIG. By driving a driving device such as a device, the device can be moved up and down to approach or separate from each other, and each of the pinch rolls 17 can be rotated in opposite directions by a rotary driving device such as a motor (not shown). it can. And each pinch roll 1
By rotating the members 7 and 17 close to each other and rotating them, the leading end of the band 3 is taken in between the pinch rolls 17 and 17 and the band 3 is held between the pinch rolls 17 and 17. It can be released to release the pinch.

The above-described arm 14 has substantially the same configuration as the arm 14 of the band material restraining device 9a shown in FIG.
The end of the arm 14 is provided with an end effector 25 instead of the gripper 15.

The end effector 25 is a device for holding the band 3 by being attracted to the upper surface of the band 3, and sucks air from the end of the end effector 25 by a suction device (not shown) or the like. It can be adsorbed on the upper surface.

The entrance side of the down coiler 4 is shown in FIGS.
As shown in FIG. 6, a linear motor 26 is provided below the strip cooling line 5 and can be propelled while sucking the strip 3. The linear motor 26 performs the same function as the upper introduction member 10 and the lower introduction member 12 in the hot strip rolling equipment 1 according to the first embodiment described above. Therefore, by driving the linear motor 26, the strip 3 on the linear motor 26 can be sucked and the strip 3 can be conveyed toward the down coiler 4.

A plurality of compressed air outlets 27 are provided on the surface of the linear motor 26 to prevent contact between the strip 3 and the linear motor 26. Compressed air is supplied from a blower or the like (not shown) toward the compressed air outlets 27 and blows the lower surface of the strip 3. Therefore, by blowing the compressed air from the compressed air outlets 27 to the lower surface of the strip 3, the contact between the strip 3 and the linear motor 26 can be prevented.

(Band material winding procedure) Next, based on FIG. 23 to FIG. 36, the band material in the hot band material rolling equipment 1 using the band material restraining device 9d according to the fourth embodiment described above. The winding procedure will be described. The arm 1 of the band restraining device 9d
The configuration of No. 4 is the same as that of the arm 14 of the band restraining device 9b according to the above-described second embodiment except for the configuration described above as a configuration specific to the fourth embodiment, and the same reference numerals are used. The description will be made with reference to FIG.

As shown in FIG. 23, on the exit side of the finishing mill 2, a band restraining device 9d is on standby. At this time, the band restraining device 9d is connected to both pinch rolls 1 of the holding device 13.
7 and 17 are moved to a vertically open position, the left and right sliders 19 are driven to move both arms 14 to a position close to each other, and the front and rear sliders 20 are driven to move the end effector 25 to the clamping device 13. Position, and drive the vertical swing arm 23 to move both arms 14 to the upper position. When the left and right sliders 19 are omitted,
The left and right sliders 19 are not driven.

Next, as shown in FIG. 24, when the leading end of the strip 3 passes between the pinch rolls 17 and 17 below the end effectors 25, the bogie 12 moves toward the down coiler 4. Start moving by accelerating
As shown in FIG. 26, both pinch rolls 17 and 17 are moved in a direction approaching each other, and the front end of the band material 3 is pinched by the pinching device 13 and the bogie 12 is further accelerated, as shown in FIG. The transport speed of the strip 3 and the speed of the carriage 12 are synchronized.

Next, as shown in FIG. 27, the two pinch rolls 17, 17 are rotated to push the leading end of the strip 3 toward the rear side of the carriage 12, and as shown in FIG. The rotation of the rolls 17, 17 is stopped.

Next, as shown in FIG. 29, the end effector 25 is driven so that the end effector 25 is brought into contact with the upper surface of the band material 3 and is attracted, and as shown in FIG. To release the holding of the band 3 by the holding device 13 and, as shown in FIG. 31, drive the front and rear slider 20 to cause the front and rear arms 21 to protrude toward the rear side of the carriage 12, The tip of the material 3 is extracted from the holding device 13.

Next, as shown in FIG. 32, the elevating / lowering swivel arm 23 is driven to turn the arm 14 ahead of the elevating / lowering swivel arm 23 downward, and as shown in FIG. The lifting / lowering turning arm 23 is driven in synchronization with the lifting / lowering of the carriage 12 along 8 to adjust the vertical turning position of the arm 14 on the front side of the lifting / lowering turning arm 23.

Next, as shown in FIG. 34, the leading end of the strip 3 is positioned above the linear motor 26, and the drive of the end effector 25 is stopped as shown in FIG. At the same time, the band restraining device 9 is retracted above the down coiler 4.

Then, as shown in FIG. 36, the leading end of the strip 3 is conveyed toward the down coiler 4 while being sucked by the linear motor 26. At this time, compressed air is blown out from compressed air outlets 27 provided on the upper surface of the linear motor 26 to prevent the lower surface of the strip 3 from contacting the linear motor 26.

The band restraining device 9d evacuated above the down coiler 4 moves the rail 8 toward the finishing mill 2 at the start of the next winding of the band 3, and according to the above-described procedure. Then, the band 3 is wound up.

[0077]

Since the present invention has the above-described structure, the following effects can be obtained.

According to the first or third aspect of the present invention, an upper introduction member and a lower introduction member for regulating the upper and lower surfaces of the band material from above and below and guiding the band material to the down coiler on the line for conveying the band material. Since the strip is always guided from the vertical direction, the flying phenomenon that occurs when the strip is transferred from the strip restraining device to the downcoiler can be avoided, and the transport of the strip is performed. Can be done at high speed.

In the case where the lower introduction member is constituted by a roller table, the strip restraining device according to the present invention can be easily installed while leaving the existing equipment, and is suitable for use of the present invention. It is possible to simultaneously produce a thin strip of about 1.2 to 2 mm and a thick strip of about 2 to 6 mm suitable for conventional existing equipment.

According to the second or fourth aspect of the present invention, since the end effector for sucking the upper surface of the band and the linear motor for sucking the lower surface of the band are provided, the down-coiler can be moved from the band restraining device. The flying phenomenon that occurs when the band material is delivered to the vehicle can be avoided, and the band material can be transported at a high speed.

[Brief description of the drawings]

FIG. 1 is an explanatory diagram illustrating a schematic configuration of a hot strip rolling equipment according to the present invention.

FIG. 2 is a first view of a strip restraining apparatus used in a hot strip rolling facility.
It is the perspective view which showed the Example.

FIG. 3 is a second view of a strip restraining device used in a hot strip rolling facility.
It is the perspective view which showed the Example.

FIG. 4 is a third view of a strip restraining device used in a hot strip rolling facility.
It is the perspective view which showed the Example.

FIG. 5 is an explanatory view for sequentially explaining the operation of the strip restraining device in the hot strip rolling equipment.

FIG. 6 is an explanatory view for sequentially explaining the operation of the strip restraining device in the hot strip rolling facility.

FIG. 7 is an explanatory view for sequentially explaining the operation of the strip restraining device in the hot strip rolling facility.

FIG. 8 is an explanatory view for sequentially explaining the operation of the strip restraining device in the hot strip rolling facility.

FIG. 9 is an explanatory view for sequentially explaining the operation of the strip restraining device in the hot strip rolling equipment.

FIG. 10 is an explanatory diagram for sequentially explaining the operation of the strip restraining device in the hot strip rolling facility.

FIG. 11 is an explanatory diagram for sequentially explaining the operation of the strip restraining device in the hot strip rolling facility.

FIG. 12 is an explanatory diagram for sequentially explaining the operation of the strip restraining device in the hot strip rolling facility.

FIG. 13 is an explanatory diagram for sequentially explaining the operation of the strip restraining device in the hot strip rolling facility.

FIG. 14 is an explanatory view for sequentially explaining the operation of the strip restraining device in the hot strip rolling equipment.

FIG. 15 is an explanatory view for sequentially explaining the operation of the strip restraining device in the hot strip rolling facility.

FIG. 16 is an explanatory view for sequentially explaining the operation of the strip restraining device in the hot strip rolling equipment.

FIG. 17 is an explanatory view for sequentially explaining the operation of the strip restraining device in the hot strip rolling facility.

FIG. 18 is an explanatory diagram for sequentially explaining the operation of the strip restraining device in the hot strip rolling facility.

19 is a plan view of the band material restraining device corresponding to FIG.

20 is a plan view of the band material restraining device corresponding to FIG.

FIG. 21 is a plan view of the band material restraining device corresponding to FIG.

FIG. 22 is a plan view of the band material restraining device corresponding to FIG. 17;

FIG. 23 is an explanatory view for sequentially explaining the operation of the strip restraining apparatus according to the fourth embodiment in the hot strip rolling equipment.

FIG. 24 is an explanatory diagram for sequentially explaining the operation of the strip restraining apparatus according to the fourth embodiment in the hot strip rolling equipment.

FIG. 25 is an explanatory view for sequentially explaining the operation of the strip restraining apparatus according to the fourth embodiment in the hot strip rolling equipment.

FIG. 26 is an explanatory view for sequentially explaining the operation of the strip restraining apparatus according to the fourth embodiment in the hot strip rolling equipment.

FIG. 27 is an explanatory diagram for sequentially explaining the operation of the strip restraining device according to the fourth embodiment in the hot strip rolling equipment.

FIG. 28 is an explanatory view for sequentially explaining the operation of the strip restraining apparatus according to the fourth embodiment in the hot strip rolling equipment.

FIG. 29 is an explanatory view for sequentially explaining the operation of the strip restraining device according to the fourth embodiment in the hot strip rolling equipment.

FIG. 30 is an explanatory view for sequentially explaining the operation of the strip restraining device according to the fourth embodiment in the hot strip rolling equipment.

FIG. 31 is an explanatory view for sequentially explaining the operation of the strip restraining device according to the fourth embodiment in the hot strip rolling equipment.

FIG. 32 is an explanatory view for sequentially explaining the operation of the strip restraining device according to the fourth embodiment in the hot strip rolling equipment.

FIG. 33 is an explanatory view for sequentially explaining the operation of the strip restraining apparatus according to the fourth embodiment in the hot strip rolling equipment.

FIG. 34 is an explanatory view for sequentially explaining the operation of the strip restraining device according to the fourth embodiment in the hot strip rolling equipment.

FIG. 35 is an explanatory view for sequentially explaining the operation of the strip restraining apparatus according to the fourth embodiment in the hot strip rolling equipment.

FIG. 36 is an explanatory view for sequentially explaining the operation of the strip restraining device according to the fourth embodiment in the hot strip rolling equipment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Hot strip rolling equipment 2 Finish rolling mill 3 Strip 4 Down coiler 5 Strip cooling line 6 Cooling pinch roll 7 Cooling pad 8 Rail 9a-d Strip restraint device 10 Upper introduction member 11 Lower introduction member 12 Dolly 13 Clamping device 14 Arm 15 Gripper 16 Wheel 17 Pinch Roll 18 Lifting Slider 19 Left and Right Slider 20 Front and Rear Slider 21 Front and Rear Arm 22 Finger 23 Lifting and Revolving Arm 24 Left and Right Revolving Arm 25 End Effector 26 Linear Motor 27 Compressed Air Blow Out Port

Claims (4)

[Claims] 1. A finishing mill, a down coiler for winding a strip rolled by the finishing mill, and a strip cooling line provided between the finishing mill and the down coiler, On the strip cooling line, a hot strip rolling facility equipped with a strip restraining device movable from the finishing mill side to the down coiler side while applying tension to the strip by sandwiching the end of the strip. The band restraining device is provided with a clamping device capable of clamping a front end of the band, and provided on both sides in the width direction of the band, and is movable in the front-rear, up-down, left-right directions with respect to the traveling direction of the band. A pair of arms, and a gripper provided at the tip of the arm, which is located on the front side of the holding device with respect to the traveling direction of the strip, and can grip the strip in the thickness direction. Is located above the strip cooling line. And an upper introduction member having a width smaller than the width of both grippers provided at the distal ends of the pair of arms and supporting the band material from above, and positioned below the band cooling line, A hot strip rolling equipment, comprising: a lower introduction member that vertically supports the upper introduction member and supports the strip from below. 2. A finishing mill, a down coiler for winding a strip rolled by the finishing mill, and a strip cooling line provided between the finishing mill and the down coiler; On the strip cooling line, a hot strip rolling facility equipped with a strip restraining device movable from the finishing mill side to the down coiler side while applying tension to the strip by sandwiching the end of the strip. The band restraining device is provided with a clamping device capable of clamping a front end of the band, and provided on both outer sides in the width direction of the band, and moves at least in the front-rear and up-down directions with respect to the traveling direction of the band. A pair of arms, and an end effector that is provided at the tip of the arm and that is close to the holding device with respect to the traveling direction of the strip, and that can be attracted to the upper surface of the strip. Is the strip cooling line A linear motor that is located on the lower side and can be propelled while sucking the strip is provided, and a surface of the linear motor is provided with a compressed air outlet for preventing contact between the strip and the linear motor. Hot strip rolling equipment. 3. A hot strip rolling method wherein a strip rolled by a finishing mill is conveyed and cooled on a strip cooling line, and the cooled strip is wound around a downcoiler. On the material cooling line, a belt restraining device is provided that is movable from the finishing mill side to the down coiler side while applying tension to the belt by sandwiching the end of the belt, A pair of arms respectively provided on both outer sides in the width direction of the strip, and capable of moving in the front-rear, up-down, left-right directions with respect to the traveling direction of the strip, and a tip of the arm A gripper capable of holding the strip in the thickness direction on the front side of the holding device with respect to the traveling direction of the strip, on the entrance side of the down coiler, above the strip cooling line. Located at the tip of the pair of arms An upper introduction member having a width smaller than the width of both grippers and supporting the band material from above, and a belt positioned below the band cooling line and vertically facing the upper introduction member, By using a rolling facility having a lower introduction member that supports the material from below, the moving speed of the material restraining device is synchronized with the conveying speed of the material being conveyed on the material cooling line, and the material A step of clamping the leading end of the band by the clamping device, a step of clamping the band by the gripper on the front side of the clamping device in the traveling direction of the band, and releasing the band by the restraining device. The arm is moved rearward with respect to the traveling direction, the tip of the strip is extracted from the holding device, the arm is lowered, and the tip of the strip is provided on the entry side of the down coiler, the upper introduction member and the lower introduction member. Between the process of inserting between the gripper Releasing the pinching of the strip, moving the arm to the outside in the width direction of the strip, retracting the gripper, and winding the leading end of the strip to a down coiler. . 4. A hot strip rolling method wherein a strip rolled by a finishing mill is conveyed on a strip cooling line and cooled, and the cooled strip is wound around a downcoiler. On the material cooling line, a belt restraining device is provided that is movable from the finishing mill side to the down coiler side while applying tension to the belt by sandwiching the end of the belt, A pair of arms respectively provided on both outer sides in the width direction of the band material and capable of moving in the front-rear and up-down directions with respect to the traveling direction of the band material; An end effector that is provided on the front side of the holding device with respect to the traveling direction of the strip, and that can be adsorbed on the upper surface of the strip, and is located below the strip cooling line on the entrance side of the downcoiler. Linear that can be propelled while sucking the strip A belt conveyed on the strip cooling line, using a rolling facility having a compressed air outlet for preventing contact between the strip and the linear motor on the surface of the linear motor. A step of synchronizing the moving speed of the strip restraining device with the transport speed of the strip and clamping the leading end of the strip by the clamping device; and a step of clamping the strip by the end effector in front of the clamping device in the traveling direction of the strip. The step of holding by suction and releasing the holding of the band by the restraining device, the arm is moved backward in the traveling direction of the band, the tip of the band is pulled out of the holding device, and the arm is lowered. The end of the strip into the linear motor provided on the entrance side of the down coiler, release the suction and holding of the strip by the end effector, and blow out compressed air from the compressed air outlet to remove the strip. A step of winding the tip of the strip around a down coiler while preventing contact with the surface of the near motor.