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PLP strip fixed-length conveying measurement device and method

A fixed-length transmission and measurement device technology, applied in the rolling field, can solve problems such as fluctuations, pulse length fluctuations of length measuring encoders, and deviations in the calculated length of conveying strips.

Active Publication Date: 2017-02-15
NORTHEASTERN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the fluctuation of the thickness of the incoming PLP strip, the pulse length of the length measuring encoder fluctuates, which eventually leads to a deviation between the calculated length of the conveyed strip and the actual length, and the deviation also fluctuates with the position of the pinched PLP strip.

Method used

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  • PLP strip fixed-length conveying measurement device and method
  • PLP strip fixed-length conveying measurement device and method
  • PLP strip fixed-length conveying measurement device and method

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Embodiment Construction

[0048] An embodiment of the present invention will be further described below in conjunction with the drawings.

[0049] In the embodiment of the present invention, such as figure 2 As shown, the measuring device for fixed-length transmission of PLP strip includes: pinch roller (including upper pinch roller 2 and lower pinch roller 5), length measuring encoder 4, and position sensor 1 for detecting the gap of the pinch roller A computer control system 6 equipped with a pulse calibration mode and a fixed-length transmission mode, wherein the length measuring encoder 4 is arranged on the shaft of the pinch roller, and the position sensor 1 is arranged on the upper pinch roller 2 of the pinch roller On the non-drive side, the position sensor magnetic ring 7 is fixedly arranged on the lower pinch roller 5 of the pinch roller. The output end of the position sensor 1 and the output end of the length measuring encoder 4 are both connected to the input end of the computer control system ...

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Abstract

The invention provides a PLP strip fixed-length conveying measurement device and method, and belongs to the technical field of rolling. The device comprises a clamping roller, a length measurement coder, a position sensor used for detecting a roller seam of the clamping roller and a computer control system having a pulse calibration manner and a fixed-length conveying manner. According to the control method, by identifying changes of the roller seam of the clamping roller, the unit pulse length of the length measurement coder of the clamping roller can be corrected in real time, high-accuracy length measurement of a PLP strip is achieved, and the measurement length error is smaller than + / -0.5 mm; and the number of shorn finished product unequal thickness plates between two times of adjustment of the PLP strip can be effectively increased.

Description

Technical field [0001] The invention belongs to the technical field of rolling, and specifically relates to a measuring device and a method for PLP strip fixed-length transmission. Background technique [0002] The Periodic Longitudinal Profile Strip (PLP strip) formed by rolling is cross-cut after being conveyed to a fixed length. The obtained differential thickness plate can replace the conventional uniform thickness plate, which can effectively reduce the weight of the vehicle body. The transmission and fixed length accuracy of PLP strips has become the key to the cutting pass rate and production efficiency of PLP strips. Compared with the conventional fixed-length cross-cutting of the same thickness strip, the fixed-length cross-cutting of the PLP strip has stricter requirements on the length accuracy of the finished plate. This is because the length error of the fixed length of the single differential thick plate will accumulate. When the error accumulates to a certain exte...

Claims

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Application Information

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IPC IPC(8): B21B38/00B21B37/70
CPCB21B37/70B21B38/00
Inventor 吴志强张广基孙涛胡贤磊刘相华
Owner NORTHEASTERN UNIV
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