JP2574501Y2 - Steel strip coil car - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a steel strip coil car.

[0002]

2. Description of the Related Art In general, a steel strip coil car is shown in FIGS.
As shown in FIG. 1, a pair of rotatable cradle rolls 3 are suspended on an inner cylinder 2 that can be moved up and down in a steel strip coil car 1, and a steel strip coil 4 is mounted on the cradle roll 3. ing.

As shown in FIG. 2, a coil car 1 is used to pull out a steel strip coil 4 wound around a tension reel mandrel (hereinafter referred to as a mandrel) 5a rotated by a tension reel rotating motor 5 from the mandrel 5a. The inner cylinder 2 is raised as shown in FIG. 1, and the diameter of the mandrel 5a is reduced while the outer periphery of the cradle roll 3 is in contact with the outer periphery of the steel strip coil 4, and the steel strip coil 4 is placed on the cradle roll 3. In this state, the coil car 1 is run, and the steel strip coil 4 is taken out of the winding line. FIG.
In the figure, 6 is a shear.

[0004]

In the meantime, among the wound steel strips, the thicker the steel strip, the higher the tensile strength, the harder the rolled steel strip, the more the wound steel strip coil A strong rotational force is generated at the rear end of the cradle roll 4 in a direction opposite to the winding direction, and the cradle roll 3 is rotatable. There is a risk that the band may not be bound to the outer periphery, the equipment near the steel strip coil 4 may be damaged, or a serious disaster may occur, such as the rear end of the steel strip coil 4 hitting an operator.

[0005] Some cradle rolls include a ratchet wheel and a ratchet.
In the case where rotation is stopped in only one direction and the winding direction on the mandrel is reversed, there is no rotation stop function and it is a mere manual ratchet operation. If the line must be pressed and the last end wound up to the full contact point with the cradle roll, and the line operation is forgotten to unlock the ratchet, the ratchet wheel, ratchet, fluid pressure cylinder, etc. may be damaged. Was.

[0006]

SUMMARY OF THE INVENTION In a coil car supported by a pair of cradle rolls capable of elevating and lowering a steel strip coil, a rotation preventing means for locking and unlocking the rotation of at least one cradle roll, and a mandrel of a tension reel. Control means for controlling the rotation preventing means, the control means being operated by a detection signal of rotation, mandrel expansion / contraction, a moving position of the coil car up and down, and a running operation into and out of the winding line , wherein the rotation preventing means comprises:
Gear type ratchet wheel integrally attached to one of the shaft ends of the wheel
And a stopper provided to be able to be fitted to and removed from the gear-type ratchet wheel.
Pin and the stopper pin with respect to the gear-type ratchet wheel.
And a hydraulic cylinder for moving forward or backward .

[0007]

According to the present invention, when the steel strip coil is fixed to the mandrel and rotating, the rotation preventing means for the cradle roll is in an unlocked state, and the rearmost end of the steel strip coil cut by the shear is provided. When rolling the part, the cradle roll is pushed up to the outer peripheral side of the steel strip coil so that the outer peripheral side of the steel strip coil does not loosen, and even if the cradle roll rotates in contact with the steel strip coil, the rotation preventing means does not rotate the mandrel. Unless the diameter is reduced, the unlocked state is maintained, so that the rotation preventing means is not damaged.

When the steel strip coil is taken out of the winding line by a coil car while being placed on the cradle roll, the mandrel is reduced in diameter. Is locked, the cradle roll cannot rotate, and even if the steel strip coil tries to rotate due to the properties of the steel strip, the outer circumference of the cradle roll is rubber-lined, so the friction resistance between the steel strip coil and the lining rubber In addition, the steel strip coil cannot rotate, and the rear end of the steel strip coil does not spring up, so that the banding operation can be performed safely.

Further, after the banding work on the steel strip coil is completed, the steel strip coil is transferred from the cradle roll to another place, and then, in the process of running the coil car into the winding line, a rotation preventing means for the cradle roll is provided. Is unlocked. Note that the cradle roll
The stopper pin with the hydraulic cylinder
It is only necessary to move forward and fit the gear type ratchet wheel. Ma
Conversely, retract the stopper pin with a hydraulic cylinder
The cradle roll is unlocked
You can return to the state.

[0010]

FIG. 3 is a front view showing an embodiment of a rotation preventing means for locking and unlocking the rotation of the cradle roll 3 in a steel strip coil car according to the present invention.
One of the shaft ends of the cradle roll 3 has a gear-type ratchet 7
Are integrally fixed by bolts 8. The illustration of the other cradle roll 3 is omitted.

A bracket 9 is provided on the inner cylinder 2 of the steel strip coil car 1 opposite to the gear type ratchet wheel 7, and a stopper pin 11 is provided on the bracket 9 via a guide member 10. , Is provided so as to be able to be fitted and detached from the gear-type ratchet wheel 7.

On the bracket 9, a fluid pressure cylinder 12 connected to the rear end of the stopper pin 11 is provided.

The hydraulic cylinder 12 is controlled by a control means (not shown) which is operated in response to detection signals of the rotation of the mandrel of the tension reel, the expansion and contraction of the mandrel, the position of the coil car ascending and descending, and the running operation into and out of the winding line. The forward and backward operations are performed, and the locking and unlocking of the stopper pin 11 with respect to the gear-type ratchet wheel 7 is performed.

[0014]

According to the present invention described above, when the steel strip coil is fixed to the mandrel and rotating, the rotation preventing means for the cradle roll is in the unlocked state, and the steel strip cut by the shear is provided. When the last end of the coil is wound, the cradle roll is pushed up to the outer circumference of the steel strip coil so that the outer circumference of the steel strip coil is not loosened. Is unlocked unless the mandrel is reduced in diameter, and therefore does not damage the anti-rotation means.

Further, when the steel strip coil is carried out of the winding line by the coil car while being placed on the cradle roll, the diameter of the mandrel is reduced. Is locked, the cradle roll cannot rotate, and even if the steel strip coil tries to rotate due to the properties of the steel strip, the outer circumference of the cradle roll is rubber-lined, so the friction resistance between the steel strip coil and the lining rubber In addition, the steel strip coil cannot rotate, and the rear end of the steel strip coil does not spring up, so that the banding operation can be performed safely.

Further, after the banding work on the steel strip coil is completed and the steel strip coil is transferred from the cradle roll to another location, the coil car is driven into the take-up line. Is unlocked.

[Brief description of the drawings]

FIG. 1 is a schematic front view of a steel strip coil car to which the present invention is applied.

FIG. 2 is a side view of FIG.

FIG. 3 is a front view of a main part of the steel coil car showing the embodiment of the present invention.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Steel coil coil car 2 Inner cylinder 3 Cradle roll 4 Steel coil 5 Motor for rotation of tension reel 5a Mandrel 6 Shear 7 Gear type ratchet wheel 8 Bolt 9 Bracket 10 Guide member 11 Stopper pin 12 Fluid pressure cylinder

Continuation of front page (56) References JP-A-5-138247 (JP, A) JP-A-1-245919 (JP, A) JP-A-49-122864 (JP, A) JP-A-5-49114 (JP, A) (U, U) 1983-76319 (JP, U) (58) Field surveyed (Int. Cl. ⁶ , DB name) B21C 47/24 B65H 19/00-19/30

Claims (1)

(57) [Scope of request for utility model registration] 1. A coil car for supporting a steel strip coil by a pair of cradle rolls capable of moving up and down, wherein a rotation preventing means for locking and unlocking the rotation of at least one cradle roll, mandrel rotation of a tension reel, mandrel expansion and contraction. Control means for controlling the rotation preventing means, the control means being operated by a detection signal of an ascending / descending position of the coil car and a running operation into and out of the winding line ,
The rotation preventing means is one of the shaft ends of the cradle roll.
Gear type ratchet wheel integrally mounted on the gear, and the gear type ratchet wheel
A stopper pin provided so as to be able to
Move the topper pin forward or backward with respect to the gear type ratchet wheel.
And a fluid pressure cylinder .