JPS6017645B2 - Metal strip splitting equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION This invention relates to metal strip processing equipment, and more particularly to improvements in metal strip splitting equipment in continuous phosphor annealing furnaces or surface treatment lines.

BACKGROUND ART Conventionally, as a side trimmer and a splitter (middle splitter), those shown in Fig. 1 are known.

That is, although the side trimmer 10 and the splitter S3 were installed coaxially, it took a long time to change the blades and to switch between single length and medium split. 14 indicates the division shear. 12 indicates the trimming allowance.

In addition, a device in which the side trimmer and the splitter are arranged on different axes is known, but due to the structure of the machine, there is a distance of 3 to 4 degrees between the two, which causes the metal strip to shift, resulting in a lack of accuracy in the middle division. There was a problem.

The present invention provides a splitting facility that improves the above-mentioned problems.

That is, the gist of the present invention resides in a splitting equipment that is provided with a splitter that is disposed concentrically with the round blade of the side trimmer and is movable up and down on a shaft separate from the round blade of the side trimmer.
The present invention will be described in detail below with reference to the drawings. FIG. 2 is a perspective view of an application example of the present invention, FIG. 3 is a front view of the splitting equipment of the present invention, FIG. 5 is a plan view thereof, and FIG. 5 is a side view thereof.

In FIG.
3 is provided on the concentric shaft, and the splitter blade 3 is
As mentioned later, side trimmer 191! , 10 It is separate from Mountain 2 and can be raised and lowered.

The splitting equipment of the present invention is used by installing a splitting shear 14t, a deflector pinch roll 15, and a carousel reel 18-1718-2 on the downstream side of the rear face, and a punch hole punching machine 19 if necessary. The middle 16 is a divided metal strip and a 1T' reel.The side trimmer and splitter are detailed in Fig. 3 and below.

That is, the gate-shaped frame 28 is fixed to the base 25, and the support plate 33 is placed thereon to provide the upper splitter. The round blade 21-1 of the upper splitter is provided on the split upper body 20, and the upper body is supported by the arm 34 so as to be able to move vertically, and is also fixed to the main shaft 22. It can be raised and lowered freely.
The round blades 21-2 of the lower splitter are supported by an eccentric cam 23, and are rotated by the lower splitter lifting motor 32.
Since the drive mechanism 26 (for example, a worm gear) rotates, the individual D cams having the worms that mesh with the drive mechanism 26 rotate and can move up and down.

Also, the round blades 21-1 and 2-12 of the splitter are concentric with the side trimmer's cutter (round blade) 24-1 and 24-2.
It is set above 0. Here, ``The reason why the lifting mechanism of the round blades 21-2 of the lower splitter is an eccentric cam is because
The lower surface of the steel plate remains constant even when the plate thickness changes, so it is only necessary to lower it by a small amount of movement (about 50 to 100 ribs) to a point where it does not touch during the vibration, and the oxidation scale on the steel plate surface is
This was chosen from the viewpoint of simplifying the equipment and maintaining it, taking into consideration the harsh environment where it could cause flaking and falling.

As a result, the lower splitter shaft has been extremely shortened and its rigidity has been significantly improved. The splitter according to the present invention has the advantage of ``aligning the side trimmer and splitter concentrically on the camellia side as described above and improving rigidity, so that when dividing the metal strip into specified dimensions in the plate, for example, into two strips, the left and right sides of the plate are Even when lateral wobbling occurs, there is little phase shift between the side trimmer and splitter, and Sakamachi accuracy has improved to the same level or higher than coaxial.

In addition, the round blades of the slitter of the present invention can be raised and lowered both upward and downward, so when a splitter is not needed for the metal band to be threaded, it can be moved up and down, allowing the metal band to pass through the metal. Switching between single length and medium length bands can be done instantly, and blades can be changed as easily and in a short time as with different koji.

Now, in the conventional technology shown in Figure 1, the shafts of the side trimmer and splitter device are long, so the upper and lower gaps, which are the lifeblood of a round blade, tend to shift, resulting in unstable sharpness and shortened lifespan. As shown in Figure 3, by shortening the shaft to improve rigidity and making the lower round blade freely move up and down using an eccentric cam, ``a relatively simple device can resist torsion and vibration of the shaft, improve accuracy, It has become possible to stabilize the sharpness and extend the life.

As described above, the present invention is a splitting equipment that achieves medium precision, good workability, stable sharpness, and extended life, which could not be achieved with the Dodo and Imari splitters, which are attached to the splitter alone.

[Brief explanation of the drawing]

Figure 1 is an explanatory diagram of a conventional device, Figure 2 is a perspective view of an application example of the present invention, Figure 3 is a front view of the invention, Figure 4 is a plan view, and Figure 5 is a side view. Book...Side trimmer, 13...Subritzer "Turtle 4...Split sear" 18...Carousel IJ rule ~ 19..."Punch hole puncher, 20...Split body, 21 One turtle ...M upper splitter, 21-2 state...Lower splitter, 33... Support plate, 34... Guide arm. Figure 1 Figure 4 Figure 2 Figure 3 Figure 5

Claims (1)

[Claims] 1. A gate-shaped frame that is orthogonal to the metal strip threading line is placed on the base, and a main shaft that can move up and down in the vertical direction is provided on the metal strip threading line of the gate-shaped frame, and the metal strip threading line is attached to the end of the main shaft. An upper body of the splitter that cuts the center part is provided, a round blade of the upper splitter is provided on the upper body to enable it to be raised and lowered, and a round blade of the lower splitter corresponding to the round blade of the upper splitter is provided on the eccentric cam to form a drive mechanism. A side trimmer having a round blade for cutting both ends of the metal strip is provided on the base, and when cutting the metal strip, the round blade of the side trimmer and the top, A metal band splitting equipment characterized in that the round blades of the lower splitter are configured to have concentric shafts.