Aluminum plate strip conveying control system

Abstract

The invention discloses an aluminum plate strip conveying control system which comprises a length counting module, a timing module and a monitoring and early warning module, and the length counting module monitors the fixed-length conveying speed of a deviation rectifying feeding machine in real time; the length metering module monitors the fixed-length conveying length of the deviation rectifying feeding machine and the actual feeding length of the aluminum plate strip in real time, and compares the fixed-length conveying length of the deviation rectifying feeding machine with the actual feeding length of the aluminum plate strip to obtain the instantaneous displacement length of the aluminum plate strip; and the length metering module corrects the fixed-length conveying length of the deviation rectifying feeding machine according to the instantaneous displacement length of the aluminum plate strip. According to the aluminum plate strip conveying control system, the fixed-length conveying length of the feeding machine is corrected and corrected by calculating the instantaneous displacement length of the aluminum plate strip, the fixed-length conveying length error of the aluminum plate strip is reduced, the fixed-length cutting precision of the aluminum plate strip is improved, and meanwhile, the production efficiency is improved. And the conveying time of the aluminum plate strip at the same speed is calculated according to the corrected fixed-length conveying length of the correction feeding machine, the conveying intermittent time of the system is accurately controlled, and the conveying efficiency of the aluminum plate strip is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of aluminum plate conveying, in particular to an aluminum plate strip conveying control system. BACKGROUND

[0002] The aluminum plate strip is a kind of aluminum or aluminum alloy rolled flat material, and its core features are light weight, high specific strength, easy processing, good ductility, electrical conductivity, thermal conductivity and corrosion resistance, which can meet the diversified industrial needs and performance requirements. The conveying system is an important role in the automatic processing of the aluminum plate strip. The conveying system can convey the aluminum plate strip to the cutting process without deformation by unwinding, straightening and stable conveying. Combined with numerical control servo cutting, the aluminum plate strip can be processed into a customized size sheet or strip to realize efficient and non-deformation cutting, and is widely used in the production of automobile parts, electronic equipment housings and building decoration plates.

[0003] However, when the aluminum plate strip enters the cutting process, most of them are clamped and conveyed by the driving roller and the driven roller on the deviation rectifying feeding machine, and the conveying length of the aluminum plate strip is calculated by calculating the circumference of the driving roller, so as to achieve the purpose of fixed-length conveying of the aluminum plate strip. However, after the aluminum plate strip is conveyed to the specified length by the deviation rectifying feeding machine, the deviation rectifying feeding machine stops conveying the aluminum plate strip, and the aluminum plate strip will have a transient displacement under the action of inertia, resulting in an error in the fixed-length conveying length of the aluminum plate strip, thereby reducing the fixed-length cutting precision of the aluminum plate strip.

[0004] Therefore, there is an urgent need for an aluminum plate strip conveying control system that can accurately control the conveying time of the aluminum plate strip and eliminate the inertia error of the aluminum plate strip conveying, to solve the problems raised in the above background. SUMMARY

[0005] In order to overcome the above-mentioned defects of the prior art, the present application provides an aluminum plate strip conveying control system, which calculates the instantaneous displacement length of the aluminum plate strip, corrects the fixed-length conveying length of the deviation rectifying feeding machine, reduces the fixed-length conveying length error of the aluminum plate strip, improves the fixed-length cutting precision of the aluminum plate strip, and calculates the conveying time of the aluminum plate strip at the same speed according to the corrected fixed-length conveying length of the deviation rectifying feeding machine, accurately controls the conveying intermittent time of the system, and improves the conveying efficiency of the aluminum plate strip, to solve the problems raised in the above background.

[0006] To achieve the above-mentioned purpose, the present application provides the following technical scheme:

[0007] The aluminum plate strip conveying control system comprises a length counting module, a time counting module and a monitoring and early warning module, wherein the length counting module monitors the constant length conveying speed of the deviation rectifying feeding machine in real time; the length counting module monitors the constant length conveying length of the deviation rectifying feeding machine and the actual feeding length of the aluminum plate strip in real time, compares the constant length conveying length of the deviation rectifying feeding machine with the actual feeding length of the aluminum plate strip, and obtains the instantaneous displacement length of the aluminum plate strip; the length counting module corrects the constant length conveying length of the deviation rectifying feeding machine according to the instantaneous displacement length of the aluminum plate strip, and reduces the constant length conveying length error of the aluminum plate strip; the time counting module calculates the constant length conveying time of the deviation rectifying feeding machine according to the corrected constant length conveying length of the deviation rectifying feeding machine and the real-time monitored constant length conveying speed of the deviation rectifying feeding machine, regulates the downtime of the deviation rectifying feeding machine, and accurately controls the system conveying; the monitoring and early warning module monitors the feeding position of the aluminum plate strip in real time, and confirms whether the aluminum plate strip reaches the predetermined feeding length.

[0008] Preferably, the length counting module comprises a length monitoring unit and a length error calculation and compensation unit, wherein the length monitoring unit monitors the constant length conveying length of the deviation rectifying feeding machine and the actual feeding length of the aluminum plate strip in real time; the length error calculation and compensation unit compares the constant length conveying length of the deviation rectifying feeding machine with the actual feeding length of the aluminum plate strip, obtains the instantaneous displacement length of the aluminum plate strip, corrects the constant length conveying length of the deviation rectifying feeding machine according to the instantaneous displacement length of the aluminum plate strip, and reduces the constant length conveying length error of the aluminum plate strip.

[0009] Preferably, the length monitoring unit comprises two groups of encoders, which are respectively installed on the driving roller and the driven roller of the deviation rectifying feeding machine to monitor the rotational conveying speed thereof, and calculates the constant length conveying length of the deviation rectifying feeding machine and the actual feeding length of the aluminum plate strip according to the circumferences and the number of rotations of the driving roller and the driven roller.

[0010] Preferably, the length error calculation and compensation unit calculates and compensates the constant length conveying length of the deviation rectifying feeding machine by the following method:

[0011] Step one: calculate the difference between the actual feeding length of the aluminum plate strip and the constant length conveying length of the deviation rectifying feeding machine, and obtain the instantaneous displacement length of the aluminum plate strip under the same conveying speed;

[0012] Step two: calculate the difference between the constant length conveying length of the deviation rectifying feeding machine and the instantaneous displacement length of the aluminum plate strip, and obtain the corrected constant length conveying length of the deviation rectifying feeding machine;

[0013] Step three: the conveying speed of the deviation rectifying feeding machine is unchanged, the aluminum plate strip is conveyed based on the corrected constant length conveying length of the deviation rectifying feeding machine, and the constant length conveying length error of the aluminum plate strip is reduced.

[0014] Preferably, the time counting module regulates the downtime of the deviation rectifying feeding machine by the following method:

[0015] Step one, taking the length of the corrected length correction feeding machine as the numerator and the real-time monitored length correction feeding machine speed as the denominator to calculate the length correction feeding machine length correction feeding time;

[0016] Step two, using a timer to monitor the cutting interval time of the aluminum plate strip in real time, calculating the difference between the cutting interval time of the aluminum plate strip and the length correction feeding time of the length correction feeding machine, and obtaining the downtime of the length correction feeding machine;

[0017] Step three, intermittently conveying the aluminum plate strip according to the downtime of the length correction feeding machine, accurately controlling the system conveying, and improving the conveying efficiency of the aluminum plate strip.

[0018] Preferably, the monitoring and early warning module comprises an aluminum plate strip position monitoring unit and an early warning unit, wherein the aluminum plate strip position monitoring unit monitors the feeding position of the aluminum plate strip in real time, confirms whether the aluminum plate strip reaches the predetermined feeding length, and if the aluminum plate strip does not reach the predetermined feeding length, the early warning unit alerts the staff to check whether the length correction feeding machine is malfunctioning.

[0019] Preferably, the aluminum plate strip position monitoring unit comprises a photoelectric sensor, and the photoelectric sensor is arranged at the discharge port of the cutting machine to detect the arrival of the aluminum plate strip at the cutting position, thereby improving the length correction feeding accuracy.

[0020] Preferably, the early warning unit comprises an audible and visual alarm, and when the aluminum plate strip does not reach the cutting position, the audible and visual alarm sends a buzzer and light alarm to the staff.

[0021] Compared with the prior art, the aluminum plate strip conveying control system has the following advantages: the length correction feeding speed of the length correction feeding machine monitored by the length monitoring unit in real time is used, the length correction feeding length of the length correction feeding machine and the actual feeding length of the aluminum plate strip are calculated according to the circumferences and the number of rotations of the driving roller and the driven roller, the length error calculation compensation unit calculates the difference between the actual feeding length of the aluminum plate strip and the length correction feeding length of the length correction feeding machine, obtains the instantaneous displacement length of the aluminum plate strip under the same conveying speed, and then calculates the difference between the length correction feeding length of the length correction feeding machine and the instantaneous displacement length of the aluminum plate strip, obtains the corrected length correction feeding length of the length correction feeding machine, the system takes the corrected length correction feeding length of the length correction feeding machine as the basis to convey the aluminum plate strip at the same speed, reduces the length correction feeding length error of the aluminum plate strip, improves the cutting accuracy of the aluminum plate strip, and at the same time, the timer module takes the corrected length correction feeding length of the length correction feeding machine as the numerator and the real-time monitored length correction feeding speed of the length correction feeding machine as the denominator to calculate the length correction feeding time of the length correction feeding machine, and then uses the timer to monitor the cutting interval time of the aluminum plate strip in real time, calculates the difference between the cutting interval time of the aluminum plate strip and the length correction feeding time of the length correction feeding machine, obtains the downtime of the length correction feeding machine, and the system intermittently conveys the aluminum plate strip according to the downtime of the length correction feeding machine, accurately controls the intermittent time of the system conveying, and improves the conveying efficiency of the aluminum plate strip. BRIEF DESCRIPTION OF DRAWINGS

[0022] Fig. 1 Structure diagram of an aluminum strip conveying control system according to an embodiment of the present application;

[0023] Fig. 2 Flow diagram of an aluminum strip conveying control system according to an embodiment of the present application. DETAILED DESCRIPTION

[0024] In the description of the present application, it is to be understood that the orientations or positional relationships indicated by the terms "center", "transverse", "upper", "lower", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and are not intended to indicate or imply that the devices or elements referred to must have a particular orientation, or be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, unless otherwise specified, the meaning of "a plurality of" is two or more. In addition, the term "comprise" and any variations thereof are intended to cover non-exclusive inclusion.

[0025] Example 1

[0026] In conjunction with Figs. 1-2As shown, in this embodiment, an aluminum strip conveying control system includes: a length measuring module, a timing module and a monitoring and early warning module, wherein the system monitors the fixed-length conveying speed of the correcting feeder in real time through two sets of encoders, calculates the fixed-length conveying length of the correcting feeder and the actual feeding length of the aluminum strip according to the circumference of the active roller and the driven roller and the number of rotations, and the length error calculation and compensation unit calculates the difference between the actual feeding length of the aluminum strip and the fixed-length conveying length of the correcting feeder, obtains the instantaneous displacement length of the aluminum strip under the same conveying speed, and then calculates the difference between the fixed-length conveying length of the correcting feeder and the instantaneous displacement length of the aluminum strip, and obtains the corrected fixed-length conveying length of the correcting feeder. The system uses the corrected fixed-length conveying length of the correcting feeder as a benchmark to convey the aluminum strip at the same speed, thereby reducing the fixed-length conveying length error of the aluminum strip and improving the cutting accuracy of the aluminum strip. At the same time, the timing module The corrected fixed-length conveying length of the correcting loader is used as the numerator, and the fixed-length conveying speed of the correcting loader monitored in real time is used as the denominator to calculate the fixed-length conveying time of the correcting loader. The timer is then used to monitor the cutting interval of the aluminum strip in real time, and the difference between the cutting interval of the aluminum strip and the fixed-length conveying time of the correcting loader is calculated to obtain the downtime of the correcting loader. The system intermittently conveys the aluminum strip according to the downtime of the correcting loader, accurately controls the system conveying interval time, and improves the conveying efficiency of the aluminum strip. Moreover, the aluminum strip position monitoring unit monitors the feeding position of the aluminum strip in real time through a photoelectric sensor to confirm whether the aluminum strip has reached the predetermined feeding length. If the aluminum strip has not reached the predetermined feeding length, the early warning unit will send a buzzer and light alarm to the staff through the sound and light alarm to warn the staff to check whether the correcting loader is faulty to prevent the aluminum strip from failing to reach the feeding length and affecting the cutting quality.

[0027] Example 2

[0028] Based on Example 1, the predetermined conveying length of the aluminum strip is set to 800 mm, the actual feeding length of the aluminum strip is set to 805 mm, and the fixed-length conveying speed of the real-time monitored correcting feeder is 211.17 mm / s, that is, the rotation speed of the active roller on the correcting feeder is 211.17 mm / s;

[0029] The method for calculating the fixed-length conveying length of the compensation and correction loader is:

[0030] Step 1: Calculate the difference between the actual feed length of the aluminum strip (805 mm) and the fixed-length conveying length of the correcting feeder (800 mm), and obtain the instantaneous displacement length of the aluminum strip (5 mm) at the same conveying speed.

[0031] Step 2: Calculate the difference between the fixed-length conveying length of the correcting loader (800 mm) and the instantaneous displacement length of the aluminum strip (5 mm), and obtain the corrected fixed-length conveying length of the correcting loader (795 mm).

[0032] Step three, the fixed-length conveying speed of the deviation rectifying feeding machine is 211.17 mm / s, and the aluminum plate strip is conveyed based on the corrected fixed-length conveying length 795 mm of the deviation rectifying feeding machine. When the deviation rectifying feeding machine stops conveying the aluminum plate strip, the aluminum plate strip generates a transient displacement of 5 mm at the same speed 211.17 mm / s, the conveying length of the aluminum plate strip is supplemented, the aluminum plate strip reaches the predetermined conveying length 800 mm, the error of the fixed-length conveying of the aluminum plate strip is prevented, and the cutting accuracy of the aluminum plate strip is improved.

[0033] Example 3

[0034] Based on example 2, the corrected fixed-length conveying length of the deviation rectifying feeding machine is set to 795 mm, the real-time monitored fixed-length conveying speed of the deviation rectifying feeding machine is 211.17 mm / s, and the real-time monitored cutting interval time of the aluminum plate strip is 5 s.

[0035] The method for regulating the shutdown time of the deviation rectifying feeding machine is as follows:

[0036] Step one, the corrected fixed-length conveying length 795 mm of the deviation rectifying feeding machine is taken as the numerator, and the real-time monitored fixed-length conveying speed 211.17 mm / s of the deviation rectifying feeding machine is taken as the denominator to calculate the fixed-length conveying time of the deviation rectifying feeding machine, and the fixed-length conveying time of the deviation rectifying feeding machine is obtained to be about 3.77 s (taking the last two digits after the decimal point);

[0037] Step two, the timer is used to real-time monitor the cutting interval time of the aluminum plate strip, which is 5 s, and the difference between the cutting interval time 5 s of the aluminum plate strip and the fixed-length conveying time 3.77 s of the deviation rectifying feeding machine is calculated, and the shutdown time of the deviation rectifying feeding machine is obtained to be 1.23 s;

[0038] Step three, according to the shutdown time 1.23 s of the deviation rectifying feeding machine, the aluminum plate strip is intermittently conveyed, the system conveying is accurately controlled, and the conveying efficiency of the aluminum plate strip is improved.

[0039] The aluminum plate strip conveying control system provided by the application monitors the fixed-length conveying speed of the deviation rectifying feeding machine in real time based on the length monitoring unit, calculates the fixed-length conveying length of the deviation rectifying feeding machine and the actual feeding length of the aluminum plate strip according to the circumferences and the number of rotations of the driving roller and the driven roller, calculates the difference between the actual feeding length of the aluminum plate strip and the fixed-length conveying length of the deviation rectifying feeding machine by the length error calculation compensation unit, obtains the instantaneous displacement length of the aluminum plate strip under the same conveying speed, calculates the difference between the fixed-length conveying length of the deviation rectifying feeding machine and the instantaneous displacement length of the aluminum plate strip, obtains the corrected fixed-length conveying length of the deviation rectifying feeding machine, and the system conveys the aluminum plate strip at the same speed based on the corrected fixed-length conveying length of the deviation rectifying feeding machine, reduces the fixed-length conveying length error of the aluminum plate strip, improves the cutting precision of the aluminum plate strip, meanwhile, the timing module takes the corrected fixed-length conveying length of the deviation rectifying feeding machine as the numerator, takes the fixed-length conveying speed of the deviation rectifying feeding machine monitored in real time as the denominator to calculate the fixed-length conveying time of the deviation rectifying feeding machine, and then the timer is used to monitor the cutting interval time of the aluminum plate strip in real time, calculate the difference between the cutting interval time of the aluminum plate strip and the fixed-length conveying time of the deviation rectifying feeding machine, and obtain the downtime of the deviation rectifying feeding machine, the system intermittently conveys the aluminum plate strip according to the downtime of the deviation rectifying feeding machine, accurately controls the conveying intermittent time of the system, and improves the conveying efficiency of the aluminum plate strip.

[0040] The above is only the preferred embodiment of the application, but the protection scope of the application is not limited to this, any skilled person in the art can make equivalent replacement or change according to the technical solution and the inventive concept of the application within the technical range disclosed by the application, which should be covered in the protection scope of the application.

Claims

1. An aluminum strip conveying control system, characterized in that: include: A length measuring module, a timing module and a monitoring and early warning module, wherein the length measuring module monitors the fixed-length conveying speed of the deviation-correcting loader in real time; The length measuring module monitors the fixed-length conveying length of the correcting loader and the actual feeding length of the aluminum strip in real time, compares the fixed-length conveying length of the correcting loader and the actual feeding length of the aluminum strip, and obtains the instantaneous displacement length of the aluminum strip; the length measuring module corrects the fixed-length conveying length of the correcting loader according to the instantaneous displacement length of the aluminum strip, and reduces the error of the fixed-length conveying length of the aluminum strip; the timing module calculates the fixed-length conveying time of the correcting loader according to the corrected fixed-length conveying length of the correcting loader and the fixed-length conveying speed of the correcting loader monitored in real time, adjusts the downtime of the correcting loader, and accurately controls the system conveyance; the monitoring and early warning module monitors the feeding position of the aluminum strip in real time, and confirms whether the aluminum strip reaches the predetermined feeding length.

2. The aluminum strip conveying control system according to claim 1, characterized in that: The length measuring module includes a length monitoring unit and a length error calculation and compensation unit, wherein the length monitoring unit monitors the fixed-length conveying length of the correcting loader and the actual feeding length of the aluminum strip in real time; the length error calculation and compensation unit compares the fixed-length conveying length of the correcting loader and the actual feeding length of the aluminum strip to obtain the instantaneous displacement length of the aluminum strip, and corrects the fixed-length conveying length of the correcting loader according to the instantaneous displacement length of the aluminum strip to reduce the fixed-length conveying length error of the aluminum strip.

3. The aluminum strip conveying control system according to claim 2, characterized in that: The length monitoring unit includes two sets of encoders, which are respectively installed on the active roller and the driven roller of the correcting loader to monitor its rotation and conveying speed, and calculate the fixed-length conveying length of the correcting loader and the actual feeding length of the aluminum sheet and strip based on the circumference of the active roller and the driven roller and the number of rotations.

4. The aluminum strip conveying control system according to claim 2, characterized in that: The length error calculation and compensation unit calculates the fixed-length conveying length of the compensation correction feeder in the following manner: Step 1: Calculate the difference between the actual feeding length of the aluminum strip and the fixed-length conveying length of the correction feeder to obtain the instantaneous displacement length of the aluminum strip at the same conveying speed; Step 2: Calculate the difference between the fixed-length conveying length of the correcting feeder and the instantaneous displacement length of the aluminum strip to obtain the corrected fixed-length conveying length of the correcting feeder; Step 3: The conveying speed of the correcting loader remains unchanged, and the aluminum strip is conveyed based on the corrected fixed-length conveying length of the correcting loader to reduce the error of the fixed-length conveying length of the aluminum strip.

5. The aluminum strip conveying control system according to claim 1, characterized in that: The method by which the timing module regulates the downtime of the deviation-correcting feeder is as follows: Step 1: Calculate the fixed-length conveying time of the web-correcting loader by taking the corrected fixed-length conveying length of the web-correcting loader as the numerator and the fixed-length conveying speed of the web-correcting loader monitored in real time as the denominator; Step 2: Use a timer to monitor the cutting interval of the aluminum strip in real time, calculate the difference between the cutting interval of the aluminum strip and the fixed-length conveying time of the correcting feeder, and obtain the downtime of the correcting feeder; Step 3: Intermittently convey the aluminum strip according to the downtime of the deviation-correcting loader, accurately control the system conveying, and improve the efficiency of aluminum strip conveying.

6. The aluminum strip conveying control system according to claim 1, characterized in that: The monitoring and early warning module includes an aluminum sheet position monitoring unit and an early warning unit, wherein the aluminum sheet position monitoring unit monitors the feeding position of the aluminum sheet in real time to confirm whether the aluminum sheet has reached the predetermined feeding length. If the aluminum sheet has not reached the predetermined feeding length, the early warning unit alerts the staff to check whether the correction feeder is faulty.

7. The aluminum strip conveying control system according to claim 6, characterized in that: The aluminum strip position monitoring unit includes a photoelectric sensor, which is arranged at the cutting machine discharge port to detect when the aluminum strip reaches the cutting position, thereby improving the fixed-length cutting accuracy.

8. The aluminum strip conveying control system according to claim 6, characterized in that: The early warning unit includes an audible and visual alarm. If the aluminum strip does not reach the cutting position, the audible and visual alarm will emit a buzzer and light alarm to the staff.

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