JPS6228329Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a metal processing line that can easily pass a metal plate through a rolling mill or the like that operates reversibly.

Conventionally, when a material to be rolled is put into a reversible rolling mill, etc., the shape of the leading and trailing ends of the material to be rolled is formed straight and at right angles to the rolling line, so that the corners of the material to be rolled are There were problems such as damage to the rolls caused by collisions with the rolls of the roller tables installed before and after the reversible rolling mill. Similar problems also occurred when the roller leveler was operated reversibly to straighten the metal plate.

The present invention was made to solve this problem, and includes a metal plate processing device that performs reversible operation, and a shear device placed on the input side of the metal plate processing device.
the shearing device cuts the front end and the rear end of the metal plate into trapezoid shapes, respectively; two sets of upper and lower sets;
A lower blade, an upper tool rest and a lower tool rest each holding the upper blade and the lower blade through shims for adjusting the distance between the upper and lower blades, and one of which is configured to be movable in the vertical direction; In order to prevent the eccentricity of the tool rest, the metal plates are spaced apart from each other in the passing direction of the metal plate so that they can slide along the tool rest, and the distance between them is reduced by adjusting the vertical position. The tip and rear end of the metal plate are detected when the tip and rear end of the metal plate before cutting pass through the intermediate portions of the two sets of upper and lower blades, respectively, and the required set of cutters configured to be changeable are used. and a detection device that issues a cutting command signal.

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

Figures 1 to 4 show an up-cut shear device placed on the entry side of a metal plate processing device (reversible rolling mill or roller leveler) (not shown). 1 is erected, and a rotary shaft 3 having an eccentric part 2 in the middle part is connected to the eccentric part 2 between both legs of the shear frame 1.
The lower tool rest 6 is rotatably attached to the shear frame 1 by bearings 4 and 5 so that
It is connected to the eccentric part 2 via the book link 7. Note that the tip of the link 7 is connected to the lower tool rest 6 via the pin 8.
The end of the link 7 is rotatably fitted to the eccentric portion 2. At the front and rear sides of the lower turret 6, two sets of rollers 12a, 12b, 13a, 13 are arranged at a distance from each other in the direction of the metal plate conveyance line L so as to sandwich the lower turret 6 from the front and back.
b is placed. Each cotter 12a, 12
b, 13a, and 13b are formed in a wedge shape with the surface opposite to the lower tool rest 6 slanted downward so that the thickness becomes thinner, as shown in FIG. 2, and are fixed to the shear frame 1. It is attached to the top of the block 9 using a bolt 11 via a shim 10, and when the thickness of the shim 10 is adjusted, each block 1
2a, 12b, 13a, and 13b move up and down along the slope to adjust the distance between the two sets of cotters. Further, both sides of the lower tool rest 6 are supported by guide members 14 and 15 provided on the shear frame 1, and the lower tool rest 6 is moved to the lower tool rest 6 by rotating the rotating shaft 3 by a suitable drive device.
13a, 13b and guide members 14, 15 so that they can be raised and lowered. Also, a pair of upper and lower blades 16a and 16b cut the tip of the metal plate into a trapezoid shape.
Of the pair of upper and lower blades 17a and 17b that cut the rear end of the metal plate into a trapezoidal shape, the lower blade 16b for cutting the tip is placed at the edge of the metal plate entry side of the lower tool rest 6, and at the rear end. The lower blade 17b for cutting the parts is attached to the metal plate exit edge of the lower tool rest 6, and the upper blades 16a and 17a are attached to the upper tool rests 18 and 19 fixed to the ceiling of the frame 1 at the required positions with bolts 20, respectively. A detection device (not shown) such as an industrial television camera or a phototube for detecting the front and rear ends of the metal plate is attached to the shear frame 1.
The metal plate is automatically or manually stopped at a desired position by remote control, and the tip of the metal plate is moved between the upper blade 16a and lower blade 16b of one set by raising and lowering the lower tool rest 6. , and the upper blade 17 of the other set.
The rear end portion of the metal plate can be cut into a trapezoidal shape between the cutter a and the lower blade 17b. In addition, in order to be able to adjust the height of the cutter and the gap G in the direction of the metal plate conveyance line, there are A shim (not shown) is provided between the two. The gap between the sliding parts of the lower tool rest 6 is suitably about 0.1 to 0.2 mm, and the cutter gap G is suitably about 1.0 to 1.3 mm.

In the present invention, the position of the metal plate is confirmed using a television camera or the like in the shear frame 1, and the tip 21' of the metal plate 21 is checked as shown in FIGS. 4 and 5.
is located between both shearing lines A and B, the lower tool rest 6 is raised and the upper blade 16a and the lower blade 16b
The tip of the metal plate 21 is cut into a trapezoidal shape as shown by A, and when the rear end 21'' of the metal plate 21 is located between the two shear lines A and B, the lower tool rest 6
is raised, and the rear end of the metal plate 21 is similarly cut into a trapezoidal shape as shown by B using the upper blade 17a and the lower blade 17b. Note that 22 indicates the crop, and 23 indicates the direction of conveyance of the metal plate.

When the thicknesses of the upper blades 16a, 17a and the lower blades 16b, 17b are reduced by grinding or the like, shims are inserted between these blades and the turret to adjust the gap G.
The height direction is also adjusted using shims.

Also, if the guide liner of the lower tool rest 6 is worn and the eccentricity of the lower tool rest 6 becomes large,
a, 12b, 13a, and 13b are adjusted by the shim 10 to compensate for wear.

Note that the present invention is not limited to those shown in the above embodiments; for example, a down-cut type shear device for shearing by lowering the upper tool rest may be provided on the entry side of the metal plate processing device; It goes without saying that various other changes can be made and implemented without departing from the gist of the present invention.

As described above, according to the present invention, () the leading and trailing ends of the metal plate are cut into trapezoidal shapes and passed through a metal plate processing device that operates reversibly; The metal plate can be easily threaded without colliding with rolls, etc. Further, for the same reason as above, the impact when the metal plate collides with the roll of the processing device is reduced, and damage to the roll can be prevented.

() Since the centering adjustment of the tool post that moves up and down can be performed, even if the guide liner of the tool post wears out, the amount of eccentricity can be kept within the allowable range. () Adjustment of the gap and height of the tool Therefore, even if the thickness or height of the blades is reduced due to grinding, etc., a predetermined gap can be formed between the blades, and the blades can be wrapped by a predetermined amount. It has excellent effects such as being able to reliably detect from a distance and accurately shearing metal plates by remote control.

[Brief explanation of the drawing]

1 to 5 show an embodiment of the present invention, in which FIG. 1 is a front view, FIG. 2 is a view in the direction of the − arrow in FIG. 1, and FIG. 3 is a view in the direction of the − arrow in FIG. 1. , FIG. 4 is an enlarged view of FIG. 1, and FIG. 5 is an explanatory diagram of the state of cutting the metal plate. 1...Shear frame, 6...Lower turret, 9...
...Fixed block, 10...Shim, 12a, 12
b, 13a, 13b... Kotter, 16a, 16
b, 17a, 17b...blade, 18, 19...upper tool rest, 21...metal plate, L...metal plate conveyance line, G...cutting tool gap.

Claims (1)

[Scope of utility model registration request] It is equipped with a metal plate processing device that performs reversible operation, and a shear device disposed on the entry side of the metal plate processing device, and the shear device cuts the top and bottom ends of the metal plate into trapezoid shapes, respectively. An upper cutter comprising two sets of upper and lower blades, each of which is held via a shim for adjusting the distance between the upper and lower blades, and one of which is movable in the vertical direction. The table and the lower turret are spaced apart from each other in the metal plate passing direction and their vertical positions are adjusted so that they can slide along the turret in order to prevent eccentricity of the movable turret. a required set of blades configured to be able to change the distance between them, a metal plate tip before cutting, and a metal plate tip when the rear end passes through the middle part of the upper and lower blades of the two sets; A metal plate processing line characterized by comprising a detection device that detects each rear end and issues a cutting command signal.