CN115839650A - A method for calibrating the scissor blade of SMS disc scissors - Google Patents

Abstract

The invention relates to the technical field of Simon disk shears, in particular to a method for calibrating a shearing edge of the Simon disk shears. The method firstly searches a calibration datum point, and finds that when the eccentric shaft adjusts the blade gap, the overlapping gap changes along with the change of the side gap through multiple tracking data acquisition, but when the side gap is 0.4mm, the overlapping gap does not change to have an overlapping value. A side gap of 0.4mm is the overlap gap calibration reference point. Then, firstly calibrating the side gap, then calibrating the overlapping gap, and then optimizing a Simmak trimming gap parameter table by combining the actual trimming quality, so that the trimming quality of the soft material at the DC 03-DC 06 level meets the quality requirement.

Description

A method for calibrating the cutting edge of SMS disc shears

technical field

The invention relates to the technical field of SMS disc shears, in particular to a method for calibrating the cutting edge of SMS disc shears.

Background technique

The SMS disc shears are turret type, with four disc shears and four edge cutters, mounted on a swivel frame that can be rotated 180°, ASC-type cutting edge clearance automatic setting control. Disc shears and scrap shears are integrated into one unit, with a set of rotating platforms on the operating side and drive side, on each platform are installed 2 sets of disc shears and 2 complete sets of scrap shears (1 set for spare). Once the waste material accumulates in the chute between the disc shears and the crushing shears, the other side of the disc shears and the crushing shears can be rotated to the working position at the same time. The spare equipment can be put into use immediately to ensure the continuous operation of the production line, and the waste edge in the chute can be removed at this time. Since the disc shears and the crushing shears are on the same rotating platform, the chute between the disc shears and the crushing shears is integrated to reduce the possibility of waste edge clogging. The rotation of the turntable is done by a gear motor. After the platform is rotated, it is electromechanically clamped in the working position.

According to the preset table in the second level of the computer, the gap/overlap of the cutting blades of the disc shears and the gap of the chipping shears can be automatically adjusted to any working position. Disc shears are the driveless type. Adjust the gap and overlap of cutting blades through a dedicated electric eccentric shaft. For strips of different specifications, another eccentric shaft is used to further correct the gap and realize quick opening.

There are the following disadvantages: because the eccentric shaft adjusts the gap between the cutting blades, the overlapping gap changes with the change of the side gap, and there is a superimposed value. The overlapping clearance is inaccurately calibrated by the normal zeroing step, which affects the trimming quality; and using the existing trimming gap parameter table for trimming, the trimming quality cannot meet the site requirements.

Contents of the invention

In order to overcome the deficiencies of the existing technology, a method for calibrating the cutting edge of SMS disc shears is provided, and the SMS edge trimming gap parameter table is optimized in combination with the actual trimming quality, so that the trimming quality of DC03~DC06 soft materials can reach Require.

In order to achieve the above object, the present invention adopts the following technical solutions to realize:

A method for calibrating the cutting edge of SMS disc scissors, specifically comprising the following steps:

1) Set the side gap 0.4mm as the reference point for overlapping gap calibration;

2) Calibrate the side clearance first:

First adjust the side clearance to 0.2mm, measure with a feeler gauge, and calibrate after the feeler gauge is drawn and inserted without hindrance;

After adjusting the side clearance to 0.1mm again, measure with a feeler gauge, and calibrate after the feeler gauge is drawn and inserted without hindrance;

After the clearance is accurate, the side clearance calibration is completed;

3) Recalibrate the overlap gap:

Adjust the side gap to 0.4mm, adjust the overlap gap to -0.2mm to start measurement, measure the overlapping amount with feeler gauges of different thicknesses, and calibrate the thickness of the feeler gauge when the feeler gauge is drawn and inserted without hindrance;

After the overlap gap is automatically adjusted to 0mm, after the measurement gap is accurate, the overlap gap calibration is completed;

4) Optimize the parameter table of trimming clearance of SMS:

A. Increase the ratio of disc shear shear area to fracture area, the ratio of DC03, DC04 shear area to fracture area is adjusted from 1:2 to 1:1; the ratio of DC05, DC06 shear area to fracture area is adjusted from 1:2 to 2:1;

B. Reduce the disc shear side clearance value, and reduce the disc shear side clearance value to 0.1-0.2mm.

As a further improvement of the present invention, the step 1) four-point measurement of the side gap ensures that the four-point measurement values of the manual disc shears are the same.

Compared with prior art, the beneficial effect of the present invention is:

The present invention first searches for the calibration reference point, and after multiple times of tracking and collecting data, it is found that when the eccentric shaft adjusts the gap between the cutting blades, the overlapping gap changes with the change of the side gap, but when the side gap is 0.4 mm, there is no superposition value for the change of the overlapping gap . The side clearance of 0.4mm is the reference point for overlapping clearance calibration. Then calibrate the side clearance first, then calibrate the overlapping clearance, and then optimize the trimming clearance parameter table of SMS in combination with the actual trimming quality, so that the trimming quality of DC03~DC06 soft materials can meet the quality requirements.

Description of drawings

Fig. 1 is a strip trimming quality diagram before optimization;

Fig. 2 is a strip trimming quality diagram after optimization in the present invention.

Detailed ways

The invention discloses a method for calibrating the scissors of SMS disc scissors. Those skilled in the art can refer to the content of this article to appropriately improve the process parameters to achieve. In particular, it should be pointed out that all similar replacements and modifications are obvious to those skilled in the art, and they are all considered to be included in the present invention. The method and application of the present invention have been described through preferred embodiments, and the relevant personnel can obviously make changes or appropriate changes and combinations to the method and application described herein without departing from the content, spirit and scope of the present invention to realize and Apply the technology of the present invention.

【Example】

A method for calibrating the scissors of SMS disc scissors, specifically comprising:

1. Find the reference point for calibration

After many times of tracking and collecting data, it is found that when the eccentric shaft adjusts the gap between the cutting blades, the overlap gap changes with the change of the side gap, but when the side gap is 0.4mm, the change of the overlap gap has no superimposed value. The side clearance of 0.4mm is the reference point for overlapping clearance calibration.

2. Calibrate the side clearance first

First adjust the side clearance to 0.2mm, measure with a feeler gauge, and calibrate after the feeler gauge is drawn and inserted without hindrance; adjust the side clearance again to 0.1mm, measure with a feeler gauge, and calibrate after the feeler gauge is drawn and inserted without hindrance; the clearance is accurate After that, the side clearance calibration is completed. The side clearance should be measured at four points, and the manual disc shears should ensure that the measured values at the four points are the same.

3. Calibrate the overlap gap

Adjust the side gap to 0.4mm, adjust the overlap gap to -0.2mm, and start measuring. The gap is not allowed to be adjusted manually. Use a feeler gauge of different thickness to measure the overlapping amount. After the overlap gap is automatically adjusted to 0mm, the measurement gap is accurate and the overlap gap calibration is completed.

4. Under this method, combine the actual trimming quality to optimize the trimming gap parameter table of SMS, so that the trimming quality of DC03~DC06 soft materials can meet the quality requirements.

(1) The overlap gap value of the disc shears is increased, that is, the ratio of the shear area to the fracture area of the disc shear is increased, and the ratio of the shear area to the fracture area of DC03, DC04 is adjusted from 1:2 to 1:1; DC05, DC06 shear The area to break area ratio has been adjusted from 1:2 to 2:1.

(2) Reduce the disc shear side clearance value to 0.1-0.2 mm to ensure the strip trimming quality.

The strip trimming quality before optimization is shown in Figure 1, and the strip trimming quality after optimization is shown in Figure 2 below.

Table 1 is the overlap gap.

Table 1 Overlap Gap

Table 2 is the side clearance.

Table 2 Side Clearance

The present invention first searches for a calibration reference point, and after multiple times of tracking and collecting data, it is found that when the eccentric shaft adjusts the gap between the cutting blades, the overlapping gap changes with the change of the side gap, but when the side gap is 0.4mm, there is no superposition value for the change of the overlapping gap . The side clearance of 0.4mm is the reference point for overlapping clearance calibration. Then calibrate the side clearance first, then calibrate the overlapping clearance, and then optimize the trimming clearance parameter table of SMS in combination with the actual trimming quality, so that the trimming quality of DC03~DC06 soft materials can meet the quality requirements.

The present invention has been applied to actual production. The quantity of sawtooth edge defects caused by the poor trimming quality of the acid rolling unit of the No. 3 Cold Rolling Plant of Benxi Iron and Steel Co., Ltd. is 145 tons/month. After using the present invention, the amount of tooth edge defects is 19.6 tons/month.

The above is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto, any person familiar with the technical field within the technical scope disclosed in the present invention, according to the technical solution of the present invention Any equivalent replacement or change of the inventive concepts thereof shall fall within the protection scope of the present invention.

Claims (2)

1. A method for calibrating a shear blade of a Simian circle shear is characterized by comprising the following steps:

1) Setting a side gap of 0.4mm as an overlap gap calibration datum point;

2) Firstly, calibrating a side clearance:

firstly, adjusting the side clearance to 0.2mm, then measuring by using a feeler gauge, and calibrating after the feeler gauge is inserted and pulled out without obstruction;

after the side clearance is adjusted to 0.1mm again, the clearance is measured by a feeler gauge, and the feeler gauge is calibrated after being inserted and pulled out without obstruction;

after the clearance is accurate, the side clearance calibration is finished;

3) And calibrating the overlapping gap:

adjusting the side clearance to 0.4mm, adjusting the overlapping clearance to-0.2 mm, starting to measure, measuring the overlapping amount by using clearance gauges with different thicknesses, and calibrating by using the thickness of the clearance gauge after the clearance gauge is inserted and unplugged;

after the overlapping gap is automatically adjusted to 0mm, and the measuring gap is accurate, the calibration of the overlapping gap is completed;

4) Optimizing a Simmark trimming gap parameter table:

A. increasing the ratio of the shearing zone to the fracture zone of the circle shear, wherein the ratio of the shearing zone to the fracture zone of DC03 and DC04 is 1:2, adjusting to 1:1; the ratio of DC05, DC06 shear to break regions is from 1:2, adjusting to 2:1;

B. and reducing the side clearance value of the disc shear to 0.1-0.2 mm.

2. The method for calibrating the shear blades of the Simma disc shears according to claim 1, wherein the step 1) is implemented by side clearance four-point measurement, so that the four-point measurement values of the shear blades of the manual disc shear are ensured to be the same.

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