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Control method for small-tension tape penetrating

A control method and tension technology, which is applied in the field of small tension belt threading control, can solve problems such as fluctuating surfaces, strip bending, scratches, etc., and achieve the effect of solving surface scratches

Inactive Publication Date: 2014-08-06
CHINA NAT HEAVY MACHINERY RES INSTCO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a control method for threading with small tension, which is used to solve defects such as surface scratches caused by bending or fluctuation of the tape during the threading process

Method used

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Embodiment Construction

[0013] The main controller of the unit is Siemens 416-2DP PLC controller, and the PLC is used to control the state of the unit, including the setting of speed and tension.

[0014] The motor of the uncoiler is a variable-speed motor, and the transmission device is a Siemens 6SE70MasterDriver inverter. There is a T400 process board inside the device, which is used to complete the calculation of the coil diameter and the control of the speed and tension. The transmission device drives the motor of the uncoiler.

[0015] The roller drive is also a Siemens 6SE70MasterDriver inverter.

[0016] The console is manually operated, and the console communicates with the main controller PLC of the unit through Profibus-DP.

[0017] When working, when the threading conditions are met, the operator presses the "threading" button on the console, and the threading work starts, and the tapes are threaded according to the following steps:

[0018] Step 1. The control console sends out a thread...

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Abstract

The invention relates to the field of metallurgical equipment and provides a control method for small-tension tape penetrating. Hardware comprises a master controller of a machine set, an operating platform, an uncoiling motor, a transmission device and a roller transmission device. The hardware is characterized in that all the parts of the hardware are installed with software; the speed and tension setting of the state of the machine set are controlled by the master controller of the machine set; a T400 processing plate is arranged in the transmission device; a coiling diameter, speed and tension are calculated by using the T400 processing plate; the operating platform is communicated with the master controller of the machine set through Profibus-DP; the steps of tape penetrating, reversing and feeding are performed in turn; and the feeding is repeatedly performed for three times, so as to finish the whole process. The tension controlling and establishing steps are included in the control method; the speed and the tension are efficiently controlled; and the defects, such as surface scratch, and the like, caused by strip bending or fluctuating during the tape penetrating process, are overcome.

Description

technical field [0001] The invention relates to the field of metallurgical equipment, and relates to a control method for belt threading with small tension. Background technique [0002] In the metallurgical recoiling production line, friction between the equipment surface and the strip surface during the strip threading process is a common phenomenon, resulting in strip surface wear. At present, the more commonly used method is that the uncoiler is in the speed mode, and the rest of the transmission rollers are fed forward in a small torque limit mode, so as to achieve the purpose of smooth threading of the strip to the coiler. However, in actual operation, since the strip has no initial tension, the strip bends or vibrates during threading, resulting in scratches and other defects on the strip surface. Based on this, we have developed a control method for uncoiler small tension mode forward threading and feeding. Contents of the invention [0003] The object of the pre...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B21C47/34B21C47/02
Inventor 冯连强梁光正任玉成崔卫华丁小梅王俊萍冀俊杰
Owner CHINA NAT HEAVY MACHINERY RES INSTCO
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