JPH0421605Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] This invention relates to a retracting device for a pressure roll of an uncoiler on the entry side of a pickling equipment.

[Prior art and its problems]

As shown in FIGS. 5 and 6, a conventional pressure roll 1 is provided above a payoff reel 2, and is moved up and down by a pair of left and right hydraulic cylinders 4 installed on its support frame 3. By pressing the edge of the steel strip S unwound from the payoff reel 2, the steel strip S is prevented from buckling (folds and wrinkles that occur in the width direction of the strip when the coil is unwound, a type of stretch strain). are doing.

Conventional pressure roll usage form 1
and part 2 will be explained below.

Part 1 is to use pressure roll 1 as the leading coil.
This method completely uses the innermost diameter end of _C1 , and by following this method, bending of the coil can be prevented over the entire length of the steel strip S.

However, when this method is adopted, the pressure roll that has descended to the innermost diameter end of the coil becomes an obstacle, and the trailing coil C ₂ on standby cannot be advanced to the position of the payoff reel 2.

That is, as shown in FIG. 5, the trailing coil C 2 mounted on the coil car 5 is waiting behind the payoff reel ₂ , and the trailing coil C ₂ is advanced to the position of the payoff reel 2. In order to do this, the pressure roll that has descended to the innermost end of the coil must be removed somewhere, but as is clear from Fig. 6, the retraction position of the pressure roll 1 is to operate the cylinder 4 and move the pressure roll 1 to the retracted position. Shear roll 1 is connected to the steel strip pass line (lower pinch roll 11
There is no other way than to raise it above the height of

By the way, as shown in FIG. 5, a trailing coil C 2 placed on a coil car 5 is usually waiting behind the payoff reel ₂ , and the steel strip S of the trailing coil C ₂ is passed through a snubber roll 6. , a cradle roller 7, and an opener 8, the extension guide 9 is extended toward the pinch roll 11 side by a fluid pressure cylinder 10, and is guided to the pinch roll 11, but the pressure roll 1 is connected to the leading coil C. Even if you pull out the trailing coil C ₂ using the above method while pressing down the separation edge of the steel strip S ₁ , the pressure is still required to advance the trailing coil C ₂ to the position of the payoff reel 2. It is essential for the roll 1 to rise and retreat, and if the trailing coil is led out in advance, during the rising process of the pressure roll 1, it will collide with the leading end part of the trailing coil C ₂ that has been led out in advance. The pressure roll 1 cannot be raised and retracted, and as a result, the trailing coil C ₂ cannot be advanced to the position of the payoff reel 2.

In other words, the pressure roll 1 is the leading coil.
When the innermost end of C ₁ is used, after the preceding coil C ₁ has been unwound, the pressure roll 1 is raised to the height of the extension guide 9 or higher by the fluid pressure cylinder 4, and then the payoff reel 2 is moved to the moving base. 12 together with the fluid pressure cylinder 13 in the offline direction (direction perpendicular to the unwinding line direction).
Thereafter, the extension guide 9 is extended to the front side of the pinch roll 11 by the fluid pressure cylinder 10, the snubber roll 6 and the cradle roller 7 are rotated, and the steel strip S of the trailing coil _C2 is moved to the pinch roll 11.
While feeding the trailing coil C 2 to the exit side of the coil, the coil car 5 transports the trailing coil C ₂ in the coil unwinding direction, aligning the center of the trailing coil C ₂ with the center of the payoff reel 2, and moving the payoff reel 2 to the rear by the fluid pressure cylinder 13. For the reason mentioned above, if the pressure roll ₁ is used up to the innermost diameter end of the preceding coil C ₁ , the tip of the steel strip S of the succeeding coil C ₂ may be pinched during use. There was a problem that it was not possible to feed the roll up to roll 11, which increased the handling time.

In addition, as a second method, in order to avoid prolonging the handling time, the pressure roll 1 is used until the middle when the coil diameter becomes small, and then raised and the steel strip S of the trailing coil C ₂ is pulled out. There is a way.

Here, the second operation of the conventional method is shown in FIG.
Just explain.

(A) To shorten the time for pulling out the tip of trailing coil C ₂ , when the coil diameter becomes slightly smaller,
Raise pressure roll 1.

The extension guide 9 is extended to near the pinch roll 11, and the snubber roll 6 and cradle roller 7 are rotated to feed the tip of the trailing coil _C2 to just below the pressure roll 1.

(With this method, bending defects occur in the leading coil C ₁ from the moment the pressure roll 1 is raised.) (B) When the rear end of the leading coil C ₁ separates from the payoff reel 2 and leaves the unwinding line. , trailing coil
C ₂ Feed out the tip to just below the pinch roll 11.

(C) Pinch roll 11 descends and the trailing coil
After clamping the tip of _C2 , the extension guide 9 is returned to its original position and the snubber roll 6 is raised.

The payoff reel 2 is retracted to an off-line position in a direction perpendicular to the unwinding line.

(D) Rotate the pinch roll 11 and cradle roller 7 to prevent the coil from slackening.
Carefully advance the coil on the coil car in the direction of the unwinding line, aligning the axis of the payoff reel waiting offline with the center of the coil hole.

(The position of the coil can also be adjusted in the vertical direction using a lift cylinder (not shown).) Attach the payoff reel to the axis of the coil.

(E) Lower the pressure roll 1 and start unwinding the trailing coil C ₂ while holding down the edge of the coil separation.

However, in the second method, although the handling time for inserting the trailing coil C ₂ into the payoff reel 2 is shortened, since the use of the pressure roll 1 is stopped midway, from that point on, the handling time for inserting the trailing coil C ₂ into the payoff reel 2 is shortened. Bends occurred on the surface of the steel strip S, which adversely affected quality and was a major drawback of conventional equipment.

This device was devised in view of these circumstances, and its purpose is to allow the trailing coil to be brought out without waiting for the leading coil to come out, and to allow the pressure roll to reach the innermost diameter end of the leading coil. To provide a retracting device for a pressure roll, which can be pressed down by a pressure roller.

[Means for solving problems]

The pressure roll retracting device according to this invention includes a movable base provided with a payoff reel that can move forward and backward in a direction perpendicular to the direction of the unwinding line, and a support pedestal erected on the movable base. a beam attached horizontally to the support frame and having a surface parallel to the movement direction of the movable base; a vertical movement guide/support member provided on the beam so as to be slidable in the vertical direction; A support frame attached to the lower end of the support member, a pressure roll installed horizontally at the tip of the support frame facing the payoff reel, an actuator that moves the support frame up and down, and an actuator that moves in the direction of the rewind line. a fixed frame provided on the opposite side of the base; a beam attached horizontally to the fixed frame and having a surface parallel to the moving direction of the movable base; and a vertical movement guide provided on the beam so as to be slidable in the vertical direction. - a support member, a vertical movement guide; a tip receiving member that is attached to the lower end of the support member and receives the tip of the support frame; an actuator that moves the tip receiving member up and down; and a vertical movement guide for the support frame and the tip receiving member.・Equipped with a synchronous shaft to which the support members are connected in synchronization, the vertical motion guide and support member attached to the support frame are connected to the synchronous shaft so as to be movable in the axial direction, so that the payoff reel and the play This is to take the tsusiya roll offline.

〔Example〕

This invention will be explained below based on an illustrated embodiment. Note that the same reference numerals are given to parts that are the same as or correspond to the conventional ones.

As shown in FIG.
4 is erected, and a U-shaped beam 14A extending horizontally is attached to the support frame 14, with one side of the beam being connected to the movable base 1.
It is installed parallel to the moving direction of 2.

A vertical movement guide/support member 1 is provided on the parallel surface of the beam 14A having a surface parallel to the moving direction of the movable base 12.
5 is attached perpendicularly to the horizontal surface.

The vertical motion guide/support member 15 is composed of a rack 15A having a structure in which a spur gear is provided horizontally on a vertically extending support member, and a pinion 15B that meshes with this rack. There are two locations on the left and right.

The means for attaching the vertical movement guide/support member 15 to the beam 14A has a dovetail structure as shown in part in FIG.
It is movable up and down along the dovetail groove 4A.

Then, the vertical movement guides and
At each lower end of the support member, a support frame 3 for supporting the pressure roll 1 is provided horizontally up to the payoff reel 2 position, parallel to the moving direction of the movable base 12.

Further, at a position facing the payoff reel 2 at the tip of the support frame 3, a pressure roll 1 for pressing the steel strip S rewound from the payoff reel 2 from separating is supported in the horizontal direction. There is.

Further, the rear position of the support frame 3 (in the embodiment, between the left and right vertical motion guide members 3A) is connected to the piston of the fluid pressure cylinder 16, and the support frame 3 is moved by the vertical movement of the piston of the fluid pressure cylinder 16. Through this, the pressure roll 1 is movable in the vertical direction.

Further, since the support frame 3 is provided parallel to the movable base 12 via the beam 14', the pressure roll 1 is moved horizontally via the support frame 3 by the horizontal movement of the movable base 12. It is also possible to move in any direction.

Note that the fluid pressure cylinder 16 is attached with its outer cylindrical portion fixed to the beam 14A.

That is, in the present invention, as shown in FIG.
The extension shaft 3A of the support frame 3 is attached to the support frame 3 via a pair of left and right vertical movement guide/support members 15 consisting of a pinion 5A and a pinion 15B and a fluid pressure cylinder 16 as an actuator. Move up and down relative to ₁ ,
In addition, it moves forward and backward together with the payoff reel 2 in a direction perpendicular to the rewinding line.

On the other hand, from the fixed frame 20 erected in the vertical direction, the beam 1 is
4B, and a vertical movement guide/support member 18 is provided vertically from the beam 14B, and this vertical movement guide/support member 18 includes a rack 18A,
Pinion 18B is installed. Furthermore, a fluid pressure cylinder 19 is also attached to the beam 14B.

Attachment of vertical movement guide/support member 18 to beam 14B, attachment of fluid pressure cylinder 19, rack 18A
And the structure of the pinion 18B is the vertical movement guide and
Support member 15, fluid pressure cylinder 16, rack 15
A, the mounting method of the pinion 15B and their structure are the same.

The piston of the fluid pressure cylinder 19 is connected to a tip receiving member 17 provided at the lower end of the rack of the vertical movement guide/support member 18. A tip receiving member 17 for receiving the tip of the support frame 3 is provided at the lower end of the rack 17, and a hole is formed in the surface of the tip receiving member 17 facing the support frame 3 so that the tip of the support frame 3 is fitted therein. The fluid pressure cylinders 16 and 19 are adjusted and attached so that the tip 3B of the support frame 3 and the hole in the tip receiving member 17 are always in the same position (both horizontally and vertically).

Note that, in order to facilitate fitting of the tip receiving member 17 into the hole, the tip 3B of the support frame 3 is processed into a conical shape.

In other words, this tip receiving member 17 also has a rack 18.
It is attached to a beam 14B protruding from the fixed frame 20 via a vertical movement guide/support member 18 consisting of A and a pinion 18B and a fluid pressure cylinder 19 as an actuator. In addition,
The fixed frame 20 is provided on the opposite side of the movable base with respect to the direction of the coil unwinding line.

Further, the pinions 15B and 18B of the vertical movement guide and support members 15 and 18 are rotatably connected to the frame 2.
attached to the synchronous shaft 21 supported by 0,
The support frame 3 and the tip receiving member 17 are configured to move up and down in synchronization. Further, since the pinion 15B moves horizontally with respect to the synchronization shaft 21, a part of the synchronization shaft 21 is connected to the spline 2.
1A is being done.

As shown in FIGS. 3 and 4, the rack 15A,
18A has flanges 15a, 18a on both sides to prevent the pinions 15B, 18B from coming off, and is configured to fit into the beams 14A, 14B in a T-shape so as to slide up and down. Also, rack 15A,
A guide 22 having a collar 22a is provided on the opposite side of 18A.

In the above configuration, the following operations are performed.

() Leading coil C ₁ with pressure roll 1
Press down to the innermost diameter end. At the same time, the extension guide 9 is extended to the pin roll 11, and the leading end of the trailing coil _C2 is sent out close to the pinch roll 11 while the leading coil is being unwound.

() When the unwinding of the preceding coil C ₁ is completed,
The movable frame is moved in the direction perpendicular to the unwinding line by the fluid pressure cylinder 13, and the payoff reel 2 and the pressure roll 1 are brought offline.

() The tip of the steel strip S of the trailing coil C ₂ is held between the pinch rolls 11 and the trailing coil C ₂ is unwound by the rotational drive of the snubber roll 6 and cradle roller ₇ .
is conveyed in the unwinding direction by the coil car 5 and positioned at the center position of the payoff reel 2 waiting offline.

() Offline pressure roll 1
Since it is located at the innermost diameter position, the hydraulic cylinders 16 and 19 are pulled up in synchronization in an off-line state, and the pressure roll 4 is raised to a predetermined position.

() The movable base 12 is moved by the fluid pressure cylinder 13.
When the is moved from the offline position to the rewind line, the center of the tip 3B of the support frame 3 and the hole center of the tip receiving member 17 are already aligned, so the tip of the support frame 3 is moved to the hole of the tip receiving member 17, and the payoff The axis of the reel 2 smoothly enters the inner diameter of the trailing coil _C2 .

[Effect of idea]

As mentioned above, according to this invention, the vertically movable pressure roll is configured to be able to move horizontally in the direction perpendicular to the unwinding line together with the moving base of the payoff reel, so that the trailing coil C ₂ can be moved to the leading coil C ₁ position. When transferring the coil to the innermost diameter part of the preceding coil, the flexure roll that was being held down to the innermost diameter part of the preceding coil can be immediately evacuated to the horizontal offline position.
Even if the trailing coil is led out in advance, this lead-out steel strip does not get in the way, so the trailing coil can be brought out close to the pinch roll 11 without waiting for the leading coil to come out. , efficiency can be improved.

In addition, it is possible to press the preceding coil to the innermost diameter end using a pressure roll, so that bending does not occur and a steel strip of good quality can be obtained.

[Brief explanation of the drawing]

1 and 2 are a perspective view and a front view showing the retracting device according to this invention, FIGS. 3 and 4 are a side view and a sectional view showing the vertical movement guide/support member, and FIG.
6 are a side view and a front view showing a conventional retraction device, and FIGS. 7A to 7E are schematic diagrams sequentially showing an example of a conventional trailing coil lead-out and rewind. 1... Pressure roll, 2... Payoff reel, 3... Support frame, 4... Fluid pressure cylinder, 5... Coil car, 6... Snubber roll,
7...Cradle roller, 8...Opener,
9...Extension guide, 10...Fluid pressure cylinder, 1
1... Pinch roll, 12... Moving base, 13...
...Fluid pressure cylinder, 14...Support frame, 15,1
8... Vertical movement guide/support member, 15A, 18A...
...Rack, 15B, 18B...Pinion, 16,
19...Fluid pressure cylinder, 17...Tip receiving member, 20...Fixed frame, 21...Synchronization shaft, 22...Guide, 22a...Brim.

Claims (1)

[Scope of Claim for Utility Model Registration] A retracting device for a pressure roll installed above a payoff reel to suppress the separation of the steel strip unwound from the payoff reel, which is perpendicular to the direction of the unwinding line. a movable base provided with a payoff reel that can move forward and backward in the direction; a support pedestal erected on the movable base; and a surface horizontally attached to the support pedestal and parallel to the moving direction of the movable base. a beam having a vertical movement guide/support member provided on the beam so as to be slidable in the vertical direction; a support frame attached to the lower end of the vertical movement guide/support member; and a support frame attached to the tip of the support frame facing the payoff reel. a pressure roll installed horizontally, an actuator that moves the support frame up and down, a fixed frame provided on the opposite side of the movable base with respect to the direction of the unwinding line, and a pressure roll installed horizontally on the fixed frame. A beam having a surface parallel to the moving direction of the moving base, a vertical movement guide/support member provided on the beam so as to be slidable in the vertical direction, and a top end of the support frame attached to the lower end of the vertical movement guide/support member. a distal end receiving member to receive the distal end receiving member; an actuator that moves the distal end receiving member up and down; and a synchronizing shaft that connects the support frame and the vertical movement guide/support member of the distal end receiving member in synchronization, and is attached to the support frame. A retracting device for a pressure roll, characterized in that the vertically movable guide/support member is connected to a synchronous shaft so as to be movable in the axial direction.