JP3148447B2 - Guiding device for steel strip tip in cold rolling mill - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a reversible cold rolling mill for a steel strip.
The present invention relates to a guide device for guiding a steel strip tip to a rolling mill.

[0002]

2. Description of the Related Art Generally, a reversible cold rolling mill for a steel strip is required.
On both sides on the delivery side, tension reels for winding a steel plate are installed. Since the diameter of the coil is changed by winding and rewinding the coil during rolling, the tension reel is used to maintain the horizontal direction of the coil of the coil on both sides of the cold rolling mill body. A deflector roll is arranged between the main body and the tension reel. When the steel coil coil is inserted into the tension reel and then guided to the rolling mill while being unwound, the steel coil coil mounted on the lower winding moves diagonally upward. Conventionally, a one-link arm roller is placed above the deflector roll,
The function was to merely press the tip of the steel sheet against the lower deflector roll while guiding the tip of the steel strip with the roller, orient it in the horizontal direction, and drive it in the direction of the rolling mill. Therefore, when the tip comes out of the arm roller, it is impossible to guide in the horizontal direction, and in this case, the tip has to be manually lowered to the inside of the arm roller. For this reason, there has been a demand for complete automation of threading without dangerous work. In addition, the leading end of the steel strip into the rolling mill was manually operated.

[0003]

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems of the prior art. In a reversible cold-rolling equipment for a steel strip, the leading end of the unwound steel strip is used. It is an object of the present invention to provide a device for automatically moving and guiding a section in a horizontal direction toward a rolling mill.

[0004]

Means for Solving the Problems In order to achieve the above object, the present invention has the following features. That is, an L link arm (1) having one end connected to a rod of a cylinder (4) locked to a fixed frame and an intermediate fulcrum pivotally attached to the fixed frame; The other end and an I-link arm (2) rotatably connecting one end, a guide roller (7) is attached to the other end of the I-link arm (2), and the other end is an I-link. An S-link arm (3) connected to a rod of a cylinder (6) supported by the arm is rotatably connected, and the I-link arm (2) is supported by the L-link arm (1). The leading end of a steel strip in a reversible cold rolling mill is characterized in that a rod end of a cylinder (5) is connected. The above configuration comprises a guide table (12) provided in proximity to a tension reel (9) for winding and unwinding a coil, and a deflector roll (11) for guiding a steel strip above the guide table. ) Are installed at the upper position of the steel strip guiding device.

[0005]

According to the present invention, when a steel strip tip is guided to a rolling mill in a reversible cold rolling mill, three links of an L link arm, an I link arm and an S link arm having a guide roller attached thereto are provided. As a mechanism, for example, the tip of the coil steel strip that is out of the direction with a large bending habit is guided in the horizontal direction by a guide roller that swings and rotates and drives each link arm. enable. Further, the horizontal distance between the tension reel and the rolling mill is required to be short in operation, and this requirement is satisfied in combination with the use of the horizontal guidance on the surface of the I-link arm.

Hereinafter, the present invention will be described in detail. Figure 1
It is an explanatory view showing the composition of the device of the present invention. In the figure, reference numeral 1 denotes an L-link arm that is bent at a certain angle, and is rotatably fixed to a fixed frame (A) with a bent portion as a fulcrum 1a. One end (upper end) of the L link arm 1
Is connected to a rod 4a of a cylinder 4 supported by a fixed beam (b).
The L-link arm 1 is swung about a.

Reference numeral 2 denotes an I (eye) link arm having a flat surface 13, one end of which is an L link arm 1.
Is rotatably connected to the other end. A rod 5a of a cylinder 5 supported by the L-link arm 1 is connected to the I-link arm 2, and the operation of the cylinder 5 causes a connection point with the L-link arm 1 to be a fulcrum.
The link arm 2 is swung.

An S-link arm 3 is rotatably connected to the tip of the I-link arm 2, and a guide roller 7 that is driven and rotated is attached to one end (below), and the I-link arm 2 is attached to the other end. Is connected to the rod 6a of the cylinder 6 which is supported by the S-link arm 2 by the action of the cylinder 6 with the connection point with the I-link arm 2 as a fulcrum.

Reference numeral 9 denotes a tension reel for winding or rewinding the coil 10, and reference numeral 12 denotes a guide table for guiding the steel strip 8 to be wound or unwound. In addition, a deflector roll 11 for transferring the steel strip is provided on the upper part thereof.
Reference numeral 14 denotes a steel plate fixed guide plate.

In the present invention, the steel strip 8 is rewound from the coil 10 inserted into the tension reel 9 at the start of rolling, and the steel strip 8 moves on the guide table 12, but the tip 8a of the steel strip 8 After reaching the deflector roll 11, it proceeds obliquely upward as shown in FIG. At this time, the respective rods 4a, 5a and 6a of the oscillating cylinders 4, 5, and 6 are contracted to operate the respective link arms, and the guide roller 7 mounted on the S-link arm 3 is operated.
Is moved to the preparation position for guiding the steel strip tip 8a.

Next, the rods of the oscillating cylinders 4 and 5 are extended, and the I-link arm 2 is moved to maintain the guide surface 13 in a substantially horizontal position as shown in FIG. , And further extend the cylinder 6 to move the guide rows 7 to the position shown in FIG.
a part is rolled along the deflector roll 11 surface,
Guide horizontally. On the entry side of the rolling mill, there are steel strip guiding obstacles (c, d) such as various measuring instruments and shaping / joining equipment, and the space (e) for introducing the steel strip to the rolling mill is restricted by these. I have. In the present invention, when the guide roller 7 is further driven to rotate by the above-described operation to feed the steel strip tip toward the rolling mill, the guide plate 13 and the fixed guide plate formed on the surface of the I-link arm 2 are provided. By means of 14, the horizontal position of the guide plate 13 can be adjusted by operating the further link arm 2 if necessary, and the tip of the steel strip can be guided to the space (e) so as not to hit the obstacle.

[0012]

As described above, according to the present invention,
The L-link arm, the I-link arm and the S-link arm are functionally combined, and the guidance of the steel plate tip can be completely mechanized and automated by the action of the guide roller attached to the S-link arm tip. Since the steel strip has a guide function, the steel strip can be smoothly guided to the rolling mill, and a highly efficient rolling operation is performed, thereby significantly improving productivity.

[Brief description of the drawings]

FIG. 1 is an explanatory view showing an example of the device of the present invention.

FIG. 2 is an explanatory view showing an embodiment of the present invention.

FIG. 3 is an explanatory view showing an embodiment following FIG. 2 of the present invention.

FIG. 4 is an explanatory view showing an embodiment following FIG. 3 of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 L-link arm 2 I-link arm 3 S-link arm 4 L-link arm swing cylinder 5 I-link arm swing cylinder 6 S-link arm swing cylinder 7 Guide roller 8 Steel strip 9 Tension reel 10 Coil 11 Deflector roll 12 Guide table 13 Guide plate 14 Fixed guide plate (a), (b) Fixed frame (c), (d) Obstruction of steel strip guide into rolling mill (e) Space for inserting steel strip into rolling mill

Continuation of the front page (58) Field surveyed (Int. Cl. ⁷ , DB name) B21C 47/34 B21C 47/18 B65H 19/10

Claims (2)

(57) [Claims] An L-link arm (1) having one end connected to a rod of a cylinder (4) locked to a fixed frame and having an intermediate fulcrum pivotally attached to the fixed frame.
And an I-link arm (2) for rotatably connecting the other end and one end of the L-link arm (1), and the other end of the I-link arm (2) has a guide roller ( 7)
And an S-link arm (3) having the other end connected to a rod of a cylinder (6) supported by the I-link arm. The S-link arm (3) is rotatably connected to the S-link arm (2). An apparatus for guiding a steel strip tip in a cold rolling mill, wherein a rod tip of a cylinder (5) supported by the L-link arm (1) is connected. 2. A guide table (12) which is provided close to and retractable from a tension reel (9) for winding and rewinding a coil, and a deflector roll (11) for guiding a steel strip above the guide table. ), The rods of the cylinder (4) having one end locked to the fixed frame and the intermediate fulcrum being rotatably attached to the fixed frame at these upper positions.
A link arm (1) and an I-link arm (2) for rotatably connecting the other end and one end of the L-link arm (1), and the other end of the I-link arm (2) is provided at the other end. Is provided with a guide roller (7) at the tip and rotatably connected to an S-link arm (3) having the other end connected to a rod of a cylinder (6) supported by an I-link arm. An apparatus for guiding a tip of a steel strip in a cold rolling mill, wherein a tip of a rod of a cylinder (5) supported by the L-link arm (1) is connected to the I-link arm (2).