JP2002283126A - Slitter device and its control method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a slitter device and its control method which can readily adjust the lap amount and height of a finger in a short time by improving cutting accuracy and preventing the life of a round blade to be diminished. SOLUTION: The slitter device is configured such that: a plurality of round blades, which are positioned in the width direction by a cylindrical spacer, are inserted in a fixed lower arbor and a vertically lifting upper arbor; a plurality of fingers are formed on upper and lower parts of a metal band to be slit along the longitudinal direction of the metal band; and the metal band is slit into a plurality of streaks in its longitudinal direction by the plurality of round blades inserted into the lower arbor and upper arbor. Also in the device, digital displacement meters for obtaining heights of the upper arbor and the finger are provided, to display the lap amount and the finger height on an indicator panel from a measured value measured by the digital displacement meter.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a slitter apparatus and a control method thereof, and more particularly, to a height of an upper arbor,
That is, the present invention relates to a slitter device and a control method thereof that enable automatic control of a lap amount and a finger height.

[0002]

2. Description of the Related Art Strips of copper, zinc, aluminum and their alloys are prepared by hot rolling, cold rolling and finishing rolling ingots into metal strips of a predetermined thickness. After that, it is manufactured by slitting in the longitudinal direction with a slitter.

In the slitter used here, a plurality of round blades are fitted to a pair of arbors (rotating shafts) facing each other. The positioning of the round blade in the width direction is performed by a cylindrical spacer. Therefore, the gap (clearance) between the upper and lower round blades facing each other is determined by the spacer. In addition, the lower arbor is fixed, and by moving up and down the upper arbor, the overlap amount (lap amount) of the upper and lower round blades facing each other is determined.

Further, a plurality of fingers (stabilizers) are provided above and below the metal strip to be slit to prevent bending caused by a large force acting on a shearing local portion of the slit metal strip (hoop).

As described above, when the metal strip is slit by the slitter, the gap between the upper and lower round blades, the amount of lap and the height of the finger are important. In this case, line flaws, burrs are generated, and the cutting strip is curved. Further, the wear of the round blade is increased, and the life of the round blade is shortened accordingly.

For this reason, conventionally, in order to properly adjust the gap, the lap amount and the height of the fingers of the upper and lower round blades, a high level of operation skill is required, and time is required for round blade replacement and adjustment. Cost me. In particular, it took a long time to adjust the finger height and the lap.

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to improve the cutting accuracy and to easily and quickly adjust the wrap amount and finger height without impairing the life of the round blade. And a control method therefor.

[0008]

As a result of the study, the present inventors have provided digital displacement meters for determining the heights of the upper arbor and the finger, respectively, display the measured values by the digital displacement meters on the display panel, By adjusting the height of the upper arbor and the finger based on the difference between the measured values,
It has been found that the above object can be achieved.

The present invention has been made based on the above findings. A plurality of round blades positioned in the width direction by a cylindrical spacer are opposed to a fixed lower arbor and an upper arbor that moves up and down. A plurality of fingers are provided above and below the metal strip to be inserted and slit along the longitudinal direction of the metal strip, and a plurality of round blades inserted into the lower arbor and the upper arbor are used to form the metal strip. A slitter device for slitting a band into a plurality of strips in a longitudinal direction thereof, wherein a digital displacement meter for obtaining the height of the upper arbor and the finger is provided, and a lap amount and a finger height are obtained from actual measured values by the digital displacement meter. An object of the present invention is to provide a slitter device for displaying on a display panel.

Further, according to the present invention, by inputting the thickness of the metal strip, the lap ratio, and the cutter diameter on the display panel, the set values of the lap amount and the finger height are set on the display panel by an arithmetic unit in the control device. Display, adjust the height of the upper arbor and the finger based on the set target value, measure the actual measured value of each height by the digital displacement meter provided in the slitter device, and display the actual measured value in the display The present invention provides a control method for a slitter device, which is displayed on a panel and automatically or manually adjusted so that an actual measurement value displayed on the display panel matches a set target value.

[0011]

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

FIG. 1 is a front view of a slit in a longitudinal direction of a metal strip showing an embodiment of the slitter apparatus of the present invention, FIG. 2 is a top view thereof, and FIG. 3 is a sectional side view thereof.

In the slitter apparatus 1 shown in FIGS. 1 to 3, a pair of arbors (rotating shafts) 2 and 3 are arranged to face each other. The lower arbor 3 is fixed, but the upper arbor 2 is raised and lowered by an arbor lifting handle 8. These arbors 2 and 3 are held by chocks (bearings), and rotate opposite to each other at a constant speed in a direction opposite to a traveling direction of the metal band.

A plurality of round blades 4 are fitted into the arbor 2 and 3. The position of the round blade 4 is determined by fitting a cylindrical spacer 6 having a predetermined length to the arbor 2, 3. The gap (clearance) between the round blade 4 of the upper arbor 2 and the round blade 4 of the lower arbor 3 is determined by the spacer. The amount of overlap between the round blade 4 of the upper arbor 2 and the round blade 4 of the lower arbor 3 is determined by the height of the upper arbor 2.

A plurality of fingers (stabilizers) 5 are provided above and below the slitted metal strip along the longitudinal direction of the metal strip, and a large force acting on the shearing local portion of the slit metal strip (hoop) is provided. Prevent the resulting curvature. This finger 5 is an upper finger receiving base 10a,
It is pressed by the lower finger receiving base 10b, and is further fixed by the pressing mechanism of the air cylinder 12 provided at the entrance and the exit on the work side and the drive side. By using the air cylinder 12 as the pressing mechanism in this manner, the quality is stabilized as compared with the conventional nut tightening. In other words, the proper tightening pressure originally exists due to the thickness and hardness of each metal band. However, in the conventional technology, the tightening of the four nuts is left to individual skills, so the appearance failure due to over tightening and tightening Insufficient shape of slit product due to shortage. Also, when the tightening of the four places is not balanced, it is inevitable that these defects occur simultaneously. However, by using the air cinder, it is possible to uniformly tighten the material at the four locations with a pressure suitable for the material, thereby stabilizing the quality. Further, the safety and workability of the worker are improved. It is also possible to use an air bag or a hydraulic cylinder in addition to the air cylinder.

The air cylinder 12 is mounted on a cylinder mounting bracket 14, and a rod of the air cylinder presses the upper finger receiving base 10a. On the other hand, the cylinder fitting 14 is welded to the lower finger receiving base 10b. By this mechanism, the metal strip to be slit is located between the upper and lower fingers 5 and pressed down with a constant pressure.

The four air cylinders 12 may be controlled by using the same air circuit (pressure reducing valve). Workability is improved. That is, when inserting the tip of the metal band before the slit between the upper and lower fingers 5 of the slitter in the preparatory work, the two air cylinders 12 at the inlet are turned off, and the two air cylinders 12 at the outlet are turned off. O
If N, the gap between the upper and lower fingers 5 at the entrance is widened, the metal strip is easily inserted, and the work efficiency is improved.

The height of the upper arbor 2 for determining the amount of lap is measured by an arbor digital displacement meter 9 provided on the work side and the drive side. In addition, finger 5
Is actually measured by digital displacement meters for fingers provided at the entrance and exit of the work side and the drive side. At this time, the finger height was measured not by the height of each finger but by the height of the cradle of the finger using a digital displacement meter. These measured values are displayed as a lap amount and a finger height on a display panel as shown in FIG.

The metal strip slit into metal strips by the slitter 1 of the present invention is made of copper, zinc, aluminum or an alloy thereof, and has a thickness of, for example, 0.1 to 2 m.
m, and the band width is 100 to 600 mm.

Next, a control method of the slitter according to the present invention will be described. In the control method of the present invention, when the thickness of the metal strip, the lap ratio, and the cutter diameter are input from the display panel (touch panel), the set target values of the lap amount and the finger height are displayed on the touch panel by the calculator in the control device. . Based on this, the height of the upper arbor and the height of the finger are adjusted respectively. Since it is displayed at the top, it is adjusted so that the displayed actual measurement value matches the set target value.

Further, a specific control method of the slitter device using the touch panel will be described. [Touch panel operation] 1. Entering blade change data (1) Enter the product thickness. (2) Enter the lap rate. (3) Enter the cutter diameter.

[Blade replacement work] 1. Take out the finger. 2. Take out the spacer and round blade. 3. Insert spacers and round blades according to product dimensions. 4. Perform gap adjustment. 5. Perform lap adjustment. (1) Automatic adjustment or manual adjustment by a drive motor is performed according to the set value of the touch panel. 6. Finger height adjustment (1) Insert a finger. (2) Adjust the finger height according to the set value of the touch panel.

[Preparation for cutting] Finger pressure adjustment (1) Adjust air pressure based on information such as product thickness

[0022]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be specifically described below based on embodiments.

[Embodiment] Using the slitter shown in FIGS. 1 to 3, the round blade replacement time (finger height adjustment and lap adjustment) and the adjustment time (finger adjustment and lap adjustment) were measured and compared with the conventional one. . Table 1 shows the round blade replacement time, and Table 2 shows the adjustment time.

[0024]

[Table 1]

[0025]

[Table 2]

As is clear from Tables 1 and 2, the use of the slitter of the present invention greatly reduces the round blade replacement time and the adjustment time as compared with the conventional one.

[0027]

According to the slitter of the present invention and the control method thereof, the cutting accuracy can be improved, and the lap amount and the height of the finger can be easily and quickly adjusted without impairing the life of the round blade. Can do.

[Brief description of the drawings]

FIG. 1 is a front view of a metal strip showing a slitter device according to an embodiment of the present invention at a longitudinal exit side of a metal strip.

FIG. 2 is a top view showing one embodiment of the slitter apparatus of the present invention.

FIG. 3 is a side sectional view showing one embodiment of the slitter apparatus of the present invention.

FIG. 4 is a diagram showing an example of a display panel used in the present invention.

[Explanation of symbols]

 1: Slitter device 2: Upper arbor 3: Lower arbor 4: Round blade 5: Finger 6: Spacer 7: Chock (bearing) 8: Arbor elevating handle 9: Digital displacement meter for arbor 10a: Upper finger holder 10b: Lower side Finger support 11: Digital displacement meter for finger 12: Air cylinder 13: Debris guiding roller 14: Cylinder mounting bracket

Claims (4)

[Claims] 1. A plurality of round blades, each of which is positioned in the width direction by a cylindrical spacer, is inserted and opposed to a fixed lower arbor and an upper arbor that moves up and down, respectively, and is slit. A plurality of fingers are provided on the upper and lower sides along the longitudinal direction of the metal band, and the slitter slits the metal band into a plurality of strips in the longitudinal direction by a plurality of round blades inserted into the lower arbor and the upper arbor. A slitter device comprising: a digital displacement meter for determining the height of the upper arbor and the finger; and displaying the lap amount and the finger height on a display panel based on values measured by the digital displacement meter. 2. The digital displacement meter for obtaining the arbor height is provided on the work side and the drive side, and the digital displacement meter for obtaining the height of the finger is provided at an inlet and an outlet on the work side and the drive side. The slitter according to claim 1, wherein 3. The slitter device according to claim 1, wherein air cylinders for holding the fingers and fixing them to the receiving table are provided at an inlet and an outlet on the work side and the drive side. 4. The setting target values of the lap amount and finger height are displayed on the display panel by an arithmetic unit in the control device by inputting the thickness of the metal strip, the lap ratio, and the cutter diameter on the display panel. Adjust the height of the upper arbor and the finger based on the set target value, measure the actual measured value of each height by the digital displacement meter provided in the slitter device, and display the actual measured value on the display panel Let
A control method for a slitter device, wherein the control is performed automatically or manually so that an actually measured value displayed on the display panel matches a set target value.