阅读说明：本技术 一种保证分卷线平整机挡板缸准确到位的方法 (Method for ensuring accurate positioning of baffle cylinder of coil splitting line temper mill ) 是由 何立鑫 李朝全 宁腾 任俊威 王存 刘铁岩 张成斌 王忠朋 赵久长 石大海 于 2019-09-04 设计创作，主要内容包括：本发明涉及一种保证分卷线平整机挡板缸准确到位的方法,1)在平整机上增加红外线温度传感器,用于检测工作辊轴端挡板液压缸、上支承辊轴端挡板液压缸、下支承辊轴端挡板液压缸的入口侧及出口侧的的液压管路温度；2)平整机换辊时,根据测定的各轴端挡板液压缸入口侧、出口侧的液压管路温度控制工作辊轴端挡板、上支承辊轴端挡板、下支承辊轴端挡板打开、关闭延时动作。本发明保证顺利换辊,避免人工确认挡板位置及人工触阀操作,大幅度降低了劳动强度。避免中夜班视线差误动作存在的风险。避免抽辊过程中发生刮碰造成挡板变形、液压缸泄漏事故。(The invention relates to a method for ensuring accurate and in-place baffle cylinders of a coil splitting and leveling machine, which comprises the following steps of 1) adding an infrared temperature sensor on the leveling machine, wherein the infrared temperature sensor is used for detecting the temperatures of hydraulic pipelines at the inlet side and the outlet side of a working roll shaft end baffle hydraulic cylinder, an upper supporting roll shaft end baffle hydraulic cylinder and a lower supporting roll shaft end baffle hydraulic cylinder; 2) and when the roll of the temper mill is changed, opening and closing delay actions of the shaft end baffle of the working roll, the shaft end baffle of the upper supporting roll and the shaft end baffle of the lower supporting roll are controlled according to the measured temperatures of the hydraulic pipelines at the inlet side and the outlet side of the hydraulic cylinder of each shaft end baffle. The invention ensures smooth roll replacement, avoids manual confirmation of the position of the baffle and manual valve touch operation, and greatly reduces labor intensity. The risk of poor action of the sight line in the middle and night shifts is avoided. Avoid scraping and bumping and causing baffle deformation, pneumatic cylinder leakage accident in the roller process of taking out.)

1. A method for ensuring that a baffle cylinder of a coil splitting line temper mill is accurately in place is characterized by comprising the following steps:

1) an infrared temperature sensor is added on the temper mill and is used for detecting the temperature of hydraulic pipelines on the inlet side and the outlet side of a working roll shaft end baffle hydraulic cylinder, an upper supporting roll shaft end baffle hydraulic cylinder and a lower supporting roll shaft end baffle hydraulic cylinder;

2) and when the roll of the temper mill is changed, opening and closing delay actions of the shaft end baffle of the working roll, the shaft end baffle of the upper supporting roll and the shaft end baffle of the lower supporting roll are controlled according to the measured temperatures of the hydraulic pipelines at the inlet side and the outlet side of the hydraulic cylinder of each shaft end baffle.

2. The method for ensuring the baffle cylinder of the coil dividing and leveling machine to be accurately in place according to claim 1, wherein 3 groups of 6 infrared temperature sensors are respectively arranged on the pipelines of the working roll shaft end baffle hydraulic cylinder, the upper supporting roll shaft end baffle hydraulic cylinder and the lower supporting roll shaft end baffle hydraulic cylinder of the leveling machine, and the 1 st group of 2 infrared temperature sensors are used for detecting the temperature of oil pipes of the inlet side working roll shaft end baffle hydraulic cylinder and the outlet side working roll shaft end baffle hydraulic cylinder; 2 nd group 2 infrared temperature sensors are used for detecting the oil pipe temperature of the inlet side upper supporting roller end baffle hydraulic cylinder and the outlet side upper supporting roller end baffle hydraulic cylinder, and 3 rd group 2 infrared temperature sensors are used for detecting the oil pipe temperature of the inlet side lower supporting roller end baffle hydraulic cylinder and the outlet side lower supporting roller end baffle hydraulic cylinder.

3. The method for ensuring the baffle cylinder of the coil dividing and leveling machine to be accurately in place as claimed in claim 1, wherein the delay time is obtained by repeatedly testing and opening and closing each shaft end baffle at different environmental temperatures, recording the measured hydraulic pipeline temperature, and recording the time increased by the action of the hydraulic cylinder of the shaft end baffle according to the measured hydraulic pipeline temperature.

Technical Field

The invention relates to the field of rolling equipment, in particular to a method for ensuring accurate positioning of a baffle cylinder of a coil splitting line leveler.

Background

The proximity switch device of the hot rolling 1580 split-winding leveler is used for signal feedback of the action of the baffle at the end of the working roll/supporting roll of the leveler and ensures the replacement operation of the working roll/supporting roll of the leveler. The proximity switch devices are arranged on two sides of the frame of the temper mill and on shaft end baffles, and the number of the proximity switch devices is 6. Through the button operation of the operation box beside the machine, the baffle hydraulic cylinder at the shaft end drives the baffles at the two sides to be opened and closed simultaneously.

The proximity switch device mainly comprises a device body, a stop iron, a proximity switch and a signal support. The feedback signal of the proximity switch is often in a condition that the signal is satisfied or not satisfied in advance due to impurities such as oil sludge, iron oxide scales and the like. The problem of insufficient scraping/condition in the roll changing process can be solved only by manually operating the contact valve and manually confirming. Because the bundling line is located hot rolling factory building west side, face the sea, apart from factory delivery gate distance less than 100 meters, the gate is in normally open state, the bundling line belongs to the cold line again, after weather changes the cold, because the sealed elasticity of pneumatic cylinder is inconsistent, lead to the pneumatic cylinder to appear the condition that the axle head baffle did not move the signal feedback signal that targets in place and satisfy when the action, and because actually not moving completely and target in place, lead to the work roll, and the backing roll can't be taken out, the card is scraped to the same work roll of axle head baffle, the emergence of backing roll bearing box. The feedback signal is satisfied, an operator can operate the drawing roller, the baffle blocks the working roller/supporting roller bearing box when the drawing roller is drawn, so that the drawing roller cannot be drawn out, the baffle is slightly deformed due to the fact that the shaft end baffle is scraped and bumped with the working roller/supporting roller bearing box in the drawing roller process, even if the shaft end baffle is operated by a manual contact valve, the shaft end baffle does not act, so that the roller system cannot be replaced, and the long-time treatment is needed.

Attempts have been made to solve this problem by replacing the proximity switch travel and changing the position of the proximity switch with the result that the proximity switch feedback signal is not satisfied nor can it be solved. Due to the fact that the problem occurs, in the roll changing process of the working roll of the temper mill, signals of the proximity switch device are lost when the baffle acts, the actual action position of the baffle needs to be confirmed manually, and then manual contact valve operation is carried out, so that the roll changing time of the working roll of the temper mill is prolonged, the roll changing efficiency is reduced, and the manual operation intensity is increased. Moreover, the sight condition is poor in middle and night shifts, operators have the phenomenon of valve collision mistake, and personal injury accidents are caused once related personnel stand within the action radius of misoperation equipment.

Disclosure of Invention

The invention aims to solve the technical problem of providing a method for ensuring the accurate positioning of a baffle cylinder of a coil splitting and leveling machine, and avoiding accidents caused by the fact that a roll is not confirmed to be positioned during roll changing and personal injury accidents caused by poking a wrong valve during signal processing.

In order to achieve the purpose, the invention adopts the following technical scheme:

a method for ensuring a baffle cylinder of a coil separating and leveling machine to be accurately in place specifically comprises the following steps:

1) an infrared temperature sensor is added on the temper mill and is used for detecting the temperature of hydraulic pipelines on the inlet side and the outlet side of a working roll shaft end baffle hydraulic cylinder, an upper supporting roll shaft end baffle hydraulic cylinder and a lower supporting roll shaft end baffle hydraulic cylinder;

2) and when the roll of the temper mill is changed, opening and closing delay actions of the shaft end baffle of the working roll, the shaft end baffle of the upper supporting roll and the shaft end baffle of the lower supporting roll are controlled according to the measured temperatures of the hydraulic pipelines at the inlet side and the outlet side of the hydraulic cylinder of each shaft end baffle.

The delay time is obtained by repeatedly testing and opening and closing the shaft end baffles at different environmental temperatures, recording the actually measured hydraulic pipeline temperature, and recording the time increased by the action of the hydraulic cylinder of the shaft end baffle according to the actually measured hydraulic pipeline temperature. The corresponding relation between the hydraulic pipeline temperature and the delay time determined according to the test result is as follows:

the temperature of the hydraulic pipeline is 10-15 ℃, and the delay time is 0.3 s;

the temperature of the hydraulic pipeline is 5-10 ℃, and the delay time is 0.5 s;

the temperature of the hydraulic pipeline is 0-5 ℃, and the delay time is 0.7 s;

the temperature of the hydraulic pipeline is-5 to 0 ℃, and the delay time is 0.9 s;

the temperature of the hydraulic pipeline is-10 to-5 ℃, and the delay time is 1.2 s;

the temperature of the hydraulic pipeline is-15 to-10 ℃, and the delay time is 2.0 s;

the temperature of the hydraulic pipeline is-20 to-15 ℃, and the delay time is 3.5 s;

the temperature of the hydraulic pipeline is-25 to-20 ℃, and the delay time is 5.5 s;

the temperature of the hydraulic pipeline is-30 to-25 ℃, and the delay time is 8.3 s.

Compared with the prior art, the invention has the beneficial effects that:

1. smooth roll replacement is guaranteed, manual confirmation of the position of the baffle and manual valve touch operation are avoided, and labor intensity is greatly reduced. The risk of poor action of the sight line in the middle and night shifts is avoided.

2. Avoid scraping and bumping and causing baffle deformation, pneumatic cylinder leakage accident in the roller process of taking out.

Detailed Description

The invention is further illustrated by the following examples:

the following examples describe the invention in detail. These examples are merely illustrative of the best embodiments of the present invention and do not limit the scope of the invention.

A method for ensuring a baffle cylinder of a coil separating and leveling machine to be accurately in place specifically comprises the following steps:

1) respectively installing 3 groups of 6 infrared temperature sensors on the working roll shaft end baffle hydraulic cylinder, the upper supporting roll shaft end baffle hydraulic cylinder and the lower supporting roll shaft end baffle hydraulic cylinder pipelines of the temper mill, wherein the 1 st group of 2 infrared temperature sensors are used for detecting the temperature of oil pipes of the inlet side working roll shaft end baffle hydraulic cylinder and the outlet side working roll shaft end baffle hydraulic cylinder; the 2 nd group of 2 infrared temperature sensors are used for detecting the temperature of oil pipes of the inlet side upper supporting roller end baffle hydraulic cylinder and the outlet side upper supporting roller end baffle hydraulic cylinder, and the 3 rd group of 2 infrared temperature sensors are used for detecting the temperature of the oil pipes of the inlet side lower supporting roller end baffle hydraulic cylinder and the outlet side lower supporting roller end baffle hydraulic cylinder;

2) and when the roll of the temper mill is changed, opening and closing delay actions of the working roll shaft end baffle, the upper supporting roll shaft end baffle and the lower supporting roll shaft end baffle are controlled according to the measured temperature of the hydraulic pipeline.

The delay time is determined through testing, under different environmental temperatures, the shaft end baffle is opened and closed through repeated tests, the temperature of the hydraulic pipeline is measured, and the time of delay increased by the action of the hydraulic cylinder of the shaft end baffle is recorded according to the test. The data with low detected data temperature in each group of 2 infrared temperature sensors are taken from the control points in the temper mill control system, the temperature sensors divide the actually detected temperature into 9 levels, and 9-level delay control is realized by the control points in the system through the 9 levels of temperature of the temperature sensors. The corresponding relation between the hydraulic pipeline temperature and the delay time determined according to the test result is as follows:

the corresponding delay time of the measured hydraulic pipeline temperature is as follows:

the temperature of the hydraulic pipeline is 10-15 ℃, and the delay time is 0.3 s;

the temperature of the hydraulic pipeline is 5-10 ℃, and the delay time is 0.5 s;

the temperature of the hydraulic pipeline is 0-5 ℃, and the delay time is 0.7 s;

the temperature of the hydraulic pipeline is-5 to 0 ℃, and the delay time is 0.9 s;

the temperature of the hydraulic pipeline is-10 to-5 ℃, and the delay time is 1.2 s;

the temperature of the hydraulic pipeline is-15 to-10 ℃, and the delay time is 2.0 s;

the temperature of the hydraulic pipeline is-20 to-15 ℃, and the delay time is 3.5 s;

the temperature of the hydraulic pipeline is-25 to-20 ℃, and the delay time is 5.5 s;

the temperature of the hydraulic pipeline is-30 to-25 ℃, and the delay time is 8.3 s.

Different temperatures respectively correspond to different delay times, and the hydraulic cylinder can be ensured to move in place in any temperature section.