阅读说明：本技术 烟支输送系统储烟量检测方法及装置 (Cigarette storage amount detection method and device for cigarette conveying system ) 是由 马孝宗 李军民 戚亚东 李保成 吕德礼 李勇 张世典 魏景春 刘俊强 李永红 张 于 2020-05-19 设计创作，主要内容包括：本发明公开了一种烟支输送系统储烟量检测方法及装置,其中,该方法包括将霍尔角度传感器的检测轴与烟支输送系统中变频电机输出轴相连；霍尔角度传感器将变频电机输出轴的转动角度转化为电信号；根据电信号获取电压值序列；根据电压值序列获得变频电机输出轴的累计相对转动角度；根据累计相对转动角度获得烟支输送系统的传送带的相对运动距离；根据传送带的相对运动距离获得烟支输送系统储烟量。本发明提供的烟支输送系统储烟量检测方法及装置,实现了对烟支输送系统储烟量的准确检测,方便了统计和对照卷包机组产量,也方便了对卷包机组产量计数异常的排查。(The invention discloses a method and a device for detecting the cigarette storage amount of a cigarette conveying system, wherein the method comprises the steps of connecting a detection shaft of a Hall angle sensor with an output shaft of a variable frequency motor in the cigarette conveying system; the Hall angle sensor converts the rotation angle of the output shaft of the variable frequency motor into an electric signal; acquiring a voltage value sequence according to the electric signal; obtaining the accumulated relative rotation angle of the output shaft of the variable frequency motor according to the voltage value sequence; obtaining the relative movement distance of a conveyor belt of the cigarette conveying system according to the accumulated relative rotation angle; and obtaining the cigarette storage amount of the cigarette conveying system according to the relative movement distance of the conveying belt. The cigarette storage amount detection method and device for the cigarette conveying system, provided by the invention, realize accurate detection of the cigarette storage amount of the cigarette conveying system, facilitate statistics and comparison of the yield of the cigarette packaging machine set, and facilitate troubleshooting of abnormal counting of the yield of the cigarette packaging machine set.)

1. A cigarette storage amount detection method of a cigarette conveying system is characterized by comprising the following steps:

connecting a detection shaft of a Hall angle sensor with an output shaft of a variable frequency motor in a cigarette conveying system;

the Hall angle sensor converts the rotation angle of the output shaft of the variable frequency motor into an electric signal;

acquiring a voltage value sequence according to the electric signal;

obtaining the accumulated relative rotation angle of the output shaft of the variable frequency motor according to the voltage value sequence;

obtaining the relative movement distance of a conveyor belt of the cigarette conveying system according to the accumulated relative rotation angle;

and obtaining the cigarette storage amount of the cigarette conveying system according to the relative movement distance of the conveying belt.

2. The cigarette storage amount detection method of the cigarette conveying system according to claim 1, wherein the step of obtaining the accumulated relative rotation angle of the output shaft of the variable frequency motor according to the voltage value sequence specifically comprises the steps of:

drawing a voltage value curve according to the voltage value sequence;

carrying out peak value detection on the voltage value sequence to obtain each peak value point coordinate;

determining the peak point coordinate reaching the preset voltage limit value as an effective peak point coordinate;

acquiring voltage values or curve slopes on the voltage value curve at two sides of each effective peak point coordinate;

dividing the effective peak point into a forward effective peak point and a reverse effective peak point according to the voltage values or curve slopes on two sides of the effective peak point coordinate;

respectively determining the number of the forward effective peak points and the number of the reverse effective peak points;

determining the number of forward rotation turns of the output shaft of the variable frequency motor according to the forward effective peak points, and determining the number of reverse rotation turns of the output shaft of the variable frequency motor according to the number of the reverse effective peak points;

and acquiring the accumulated relative rotation angle according to the forward rotation number and the reverse rotation number.

3. The cigarette storage amount detection method of the cigarette conveying system according to claim 2, wherein the effective peak point is divided into a forward effective peak point and a reverse effective peak point according to voltage values at two sides of the effective peak point coordinate, and specifically comprises:

on the voltage value curve, if the voltage value on the left side of the effective peak point is larger than the voltage value on the right side, dividing the effective peak point into forward effective peak points;

and if the voltage value on the left side of the effective peak point is smaller than that on the right side, dividing the effective peak point into reverse effective peak points.

4. The cigarette storage amount detection method of the cigarette conveying system according to claim 2, wherein the effective peak point is divided into a forward effective peak point and a reverse effective peak point according to the slope of the curve on both sides of the coordinate of the effective peak point, and specifically comprises:

on the voltage value curve, if the slope of the curve on the left side of the effective peak point is positive, dividing the effective peak point into forward effective peak points;

and if the slope of the curve on the right side of the effective peak point is negative, dividing the effective peak point into reverse effective peak points.

5. The cigarette storage amount detection method of the cigarette conveying system according to claim 1, wherein the cigarette storage amount of the cigarette conveying system is obtained according to the relative movement distance of the conveyor belt, and the method specifically comprises the following steps:

and converting the relative movement distance of the conveyor belt into the cigarette storage amount of the cigarette conveying system according to a preset proportionality coefficient.

6. A cigarette storage amount detection device of a cigarette conveying system is characterized by comprising a Hall angle sensor, a flexible coupling, a processor and a display;

the detection shaft of the Hall angle sensor is connected with the output shaft of the variable frequency motor in the cigarette conveying system through the flexible coupling and is used for outputting a voltage value sequence representing the rotating angle of the output shaft of the variable frequency motor;

the processor is respectively connected with the Hall angle sensor and the display and is used for obtaining the cigarette storage amount of the cigarette conveying system according to the voltage value sequence and displaying the cigarette storage amount on the display.

7. The cigarette storage amount detection device of the cigarette conveying system according to claim 6, further comprising a fixing support, wherein the Hall angle sensor is fixedly arranged on the fixing support.

Technical Field

The invention relates to the technical field of tobacco, in particular to a method and a device for detecting the cigarette storage amount of a cigarette conveying system.

Background

The existing cigarette conveying system has no detection structure for detecting the cigarette storage quantity in the system, and the cigarette machine output data and the packaging machine output data cannot correspond in real time. When the team production crosses zero, the team is divided into a front work order and a rear work order according to the requirement of the national tobacco monopoly, and the cigarettes stored in the cigarette conveying system are processed by the packing machine and are counted into the output of the packing machine in the rear work order, so that the accuracy of statistical data is influenced. In addition, when the output counting of the cigarette making machine or the packaging machine is abnormal, the automatic judgment and abnormal alarm of the output cannot be realized because the cigarette storage quantity of the cigarette conveying system is unknown. Therefore, it is necessary to design a method and a device for detecting the cigarette storage amount of the cigarette conveying system so as to display the cigarette storage amount of the cigarette conveying system in real time.

Disclosure of Invention

The invention aims to provide a method and a device for detecting the cigarette storage amount of a cigarette conveying system, which are used for solving the problems in the prior art and realizing accurate detection of the cigarette storage amount in the cigarette conveying system.

The invention provides a cigarette storage amount detection method for a cigarette conveying system, which comprises the following steps:

connecting a detection shaft of a Hall angle sensor with an output shaft of a variable frequency motor in a cigarette conveying system;

the Hall angle sensor converts the rotation angle of the output shaft of the variable frequency motor into an electric signal;

acquiring a voltage value sequence according to the electric signal;

obtaining the accumulated relative rotation angle of the output shaft of the variable frequency motor according to the voltage value sequence;

obtaining the relative movement distance of a conveyor belt of the cigarette conveying system according to the accumulated relative rotation angle;

and obtaining the cigarette storage amount of the cigarette conveying system according to the relative movement distance of the conveying belt.

The cigarette storage amount detection method of the cigarette conveying system preferably includes the following steps of:

drawing a voltage value curve according to the voltage value sequence;

carrying out peak value detection on the voltage value sequence to obtain each peak value point coordinate;

determining the peak point coordinate reaching the preset voltage limit value as an effective peak point coordinate;

acquiring voltage values or curve slopes on the voltage value curve at two sides of each effective peak point coordinate;

dividing the effective peak point into a forward effective peak point and a reverse effective peak point according to the voltage values or curve slopes on two sides of the effective peak point coordinate;

respectively determining the number of the forward effective peak points and the number of the reverse effective peak points;

determining the number of forward rotation turns of the output shaft of the variable frequency motor according to the forward effective peak points, and determining the number of reverse rotation turns of the output shaft of the variable frequency motor according to the number of the reverse effective peak points;

and acquiring the accumulated relative rotation angle according to the forward rotation number and the reverse rotation number.

The cigarette storage amount detection method of the cigarette conveying system, preferably, the effective peak point is divided into a forward effective peak point and a reverse effective peak point according to the voltage values at two sides of the coordinate of the effective peak point, and the method specifically includes:

on the voltage value curve, if the voltage value on the left side of the effective peak point is larger than the voltage value on the right side, dividing the effective peak point into forward effective peak points;

and if the voltage value on the left side of the effective peak point is smaller than that on the right side, dividing the effective peak point into reverse effective peak points.

The cigarette storage amount detection method of the cigarette conveying system, wherein preferably, the effective peak point is divided into a forward effective peak point and a reverse effective peak point according to the slope of the curve on both sides of the coordinate of the effective peak point, and the method specifically includes:

on the voltage value curve, if the slope of the curve on the left side of the effective peak point is positive, dividing the effective peak point into forward effective peak points;

and if the slope of the curve on the right side of the effective peak point is negative, dividing the effective peak point into reverse effective peak points.

The cigarette storage amount detection method for the cigarette conveying system, preferably, the cigarette storage amount of the cigarette conveying system is obtained according to the relative movement distance of the conveyor belt, and specifically comprises the following steps:

and converting the relative movement distance of the conveyor belt into the cigarette storage amount of the cigarette conveying system according to a preset proportionality coefficient.

The invention also provides a cigarette storage amount detection device of the cigarette conveying system, wherein the cigarette storage amount detection device comprises a Hall angle sensor, a flexible coupling, a processor and a display;

the detection shaft of the Hall angle sensor is connected with the output shaft of the variable frequency motor in the cigarette conveying system through the flexible coupling and is used for outputting a voltage value sequence representing the rotating angle of the output shaft of the variable frequency motor;

the processor is respectively connected with the Hall angle sensor and the display and is used for obtaining the cigarette storage amount of the cigarette conveying system according to the voltage value sequence and displaying the cigarette storage amount on the display.

The cigarette storage amount detection device of the cigarette conveying system preferably further comprises a fixed support, and the hall angle sensor is fixedly arranged on the fixed support.

The cigarette storage amount detection method and device for the cigarette conveying system, provided by the invention, realize accurate detection of the cigarette storage amount of the cigarette conveying system, facilitate statistics and comparison of the yield of the cigarette packaging machine set, and facilitate troubleshooting of abnormal counting of the yield of the cigarette packaging machine set.

Drawings

The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.

FIG. 1 is a flow chart of a method for detecting the cigarette storage capacity of a cigarette conveying system according to an embodiment of the present invention;

FIG. 2 is a sequence curve diagram of voltage values when the output shaft of the variable frequency motor rotates forward;

FIG. 3 is a sequence graph of voltage values when the output shaft of the inverter motor rotates reversely;

fig. 4 is a schematic structural view of a cigarette storage amount detection device of a cigarette conveying system according to an embodiment of the present invention.

Description of reference numerals:

100 hall angle sensor 110 fixing support

200-flexible coupling 300-processor

400-display 500-Forward effective Peak Point

600-inverse effective peak point

Detailed Description

Various exemplary embodiments of the present disclosure will now be described in detail with reference to the accompanying drawings. The description of the exemplary embodiments is merely illustrative and is in no way intended to limit the disclosure, its application, or uses. The present disclosure may be embodied in many different forms and is not limited to the embodiments described herein. These embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art. It should be noted that: the relative arrangement of parts and steps, the composition of materials, numerical expressions and numerical values set forth in these embodiments are to be construed as merely illustrative, and not as limitative, unless specifically stated otherwise.

As used in this disclosure, "first", "second": and the like, do not denote any order, quantity, or importance, but rather are used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that the element preceding the word covers the element listed after the word, and does not exclude the possibility that other elements are also covered. "left", "right", etc. are used only to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also change accordingly.

In the present disclosure, when a specific component is described as being located between a first component and a second component, there may or may not be intervening components between the specific component and the first component or the second component. When it is described that a specific component is connected to other components, the specific component may be directly connected to the other components without having an intervening component, or may be directly connected to the other components without having an intervening component.

All terms (including technical or scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs unless specifically defined otherwise. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.

Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail, but are intended to be part of the specification where appropriate.

As shown in fig. 1 to 3, an embodiment of the present invention provides a method for detecting a cigarette storage amount of a cigarette conveying system, which includes the following steps:

and step S1, connecting the detection shaft of the Hall angle sensor with the output shaft of the variable frequency motor in the cigarette conveying system. The detection shaft of the Hall angle sensor can rotate along with the output shaft of the variable frequency motor of the cigarette conveying system so as to output a voltage value sequence representing the rotation angle.

And step S2, the Hall angle sensor converts the rotation angle of the output shaft of the variable frequency motor into an electric signal.

And step S3, acquiring a voltage value sequence according to the electric signals.

And step S4, obtaining the accumulated relative rotation angle of the output shaft of the variable frequency motor according to the voltage value sequence.

In the actual working process, the output shaft of the variable frequency motor has positive rotation or reverse rotation, wherein the angle of one positive rotation or one reverse rotation is 360 degrees, the angle of two positive rotation or two reverse rotation is 720 degrees, and so on, and the accumulated relative rotation angle represents the angle difference between the accumulated total angle value when the output shaft of the variable frequency motor rotates positively and the accumulated total angle value when the output shaft of the variable frequency motor rotates reversely, that is, if the output shaft of the variable frequency motor accumulates six positive rotations and five reverse rotations, the angle difference is 360 degrees.

And step S5, obtaining the relative movement distance of the conveyor belt of the cigarette conveying system according to the accumulated relative rotation angle. It can be understood that the conveyor belt can move a preset distance every time the output shaft of the variable frequency motor rotates one circle, and therefore, after the accumulated relative rotation angle is obtained, the relative movement distance of the conveyor belt can be equivalently obtained.

And step S6, obtaining the cigarette storage amount of the cigarette conveying system according to the relative movement distance of the conveyor belt.

Wherein, every time the conveyer belt moves a certain distance, all can convey the cigarette that corresponds with this distance.

Specifically, the relative movement distance of the conveyor belt can be converted into the cigarette storage amount of the cigarette conveying system according to a preset proportionality coefficient.

Compared with the prior art, the cigarette storage quantity detection method for the cigarette conveying system provided by the embodiment of the invention realizes accurate detection of the cigarette storage quantity of the cigarette conveying system, facilitates statistics and comparison of the yield of the cigarette packaging machine set, and also facilitates investigation of abnormal counting of the yield of the cigarette packaging machine set.

Further, step S4 specifically includes:

and step S41, drawing a voltage value curve according to the voltage value sequence, as shown in fig. 2 and 3.

In this embodiment, when the output shaft of the inverter motor rotates forward, the slope of the voltage curve is a positive value, and when the output shaft of the inverter motor rotates backward, the slope of the voltage curve is a negative value.

And step S42, performing peak detection on the voltage value sequence to obtain each peak point coordinate.

And step S43, determining the peak point coordinate reaching the preset voltage limit value as an effective peak point coordinate.

In this embodiment, the preset voltage limit is 5V, and the preset voltage limit indicates a maximum voltage value in a voltage value sequence output by the hall angle sensor when the output shaft of the inverter motor rotates for one cycle. However, under some working conditions, the output shaft of the variable frequency motor rotates reversely before rotating for one circle, and at this time, the peak value in the voltage value sequence output by the hall angle sensor cannot reach 5V, and the peak value is an ineffective peak value and needs to be eliminated.

And step S44, acquiring voltage values or curve slopes on the voltage value curve at two sides of each effective peak point coordinate.

On the voltage value curve, as shown in fig. 2, the "voltage values on both sides" indicate voltage values on both left and right sides near the effective peak, and when the output shaft of the inverter motor rotates in the normal direction, the voltage value on the left side of the effective peak point is a voltage close to 5V, and the voltage value on the right side of the effective peak point is 0. As shown in fig. 3, when the output shaft of the inverter motor is reversely rotated, the voltage value on the left side of the effective peak point is 0, and the voltage value on the right side of the effective peak point is a voltage close to 5V.

And step S45, dividing the effective peak point into a forward effective peak point 500 and a reverse effective peak point 600 according to the voltage values or curve slopes at two sides of the effective peak point coordinate.

Wherein, the forward effective peak point 500 represents the peak point when the output shaft of the variable frequency motor rotates forward, and the reverse effective peak point 600 represents the peak point when the output shaft of the variable frequency motor rotates reversely.

Specifically, in step S45, the dividing the effective peak point into the forward effective peak point 500 and the backward effective peak point 600 according to the voltage values at both sides of the effective peak point coordinate includes:

in step S451, on the voltage value curve, if the voltage value on the left side of the effective peak point is greater than the voltage value on the right side, the effective peak point is divided into forward effective peak points 500.

As shown in fig. 2, when the output shaft of the inverter motor rotates forward, the voltage value on the left side of the effective peak point is a voltage close to 5V, and the voltage value on the right side of the effective peak point is 0, and at this time, the effective peak point is a forward effective peak point 500.

Step S452, if the voltage value on the left side of the effective peak point is smaller than the voltage value on the right side, the effective peak point is divided into the inverse effective peak point 600.

As shown in fig. 3, when the output shaft of the inverter motor rotates forward, the voltage value on the right side of the effective peak point is a voltage close to 5V, and the voltage value on the left side of the effective peak point is 0, at this time, the effective peak point is a reverse effective peak point 600.

In addition, in step S45, the method of dividing the effective peak point into a forward effective peak point 500 and a backward effective peak point 600 according to the slope of the curve on both sides of the effective peak point coordinate includes:

on the voltage value curve, if the slope of the curve on the left side of the effective peak point is positive, the effective peak point is divided into forward effective peak points 500, as shown in fig. 2; if the slope of the curve to the right of the effective peak point is negative, the effective peak point is divided into inverse effective peak points 600, as shown in FIG. 3.

Step S46, determining the number of forward effective peak points 500 and reverse effective peak points 600, respectively.

And step S47, determining the forward rotation turns of the output shaft of the variable frequency motor according to the forward effective peak points 500, and determining the reverse rotation turns of the output shaft of the variable frequency motor according to the number of the reverse effective peak points 600.

The number of the positive effective peak points 500 can represent the number of turns of the positive rotation of the output shaft of the variable frequency motor, and the number of the negative effective peak points 600 can represent the number of turns of the negative rotation of the output shaft of the variable frequency motor.

And step S48, acquiring the accumulated relative rotation angle according to the forward rotation number and the reverse rotation number.

The number of turns difference can be obtained according to the number of turns in the forward direction and the number of turns in the reverse direction, the number of turns is equal to 360 degrees of rotation, and the product of the number of turns difference and 360 degrees is the accumulated relative rotation angle.

As shown in fig. 4, an embodiment of the present invention further provides a device for detecting a cigarette storage amount of a cigarette conveying system, which includes a hall angle sensor 100, a flexible coupling 200, a processor 300, and a display 400; the detection shaft of the Hall angle sensor 100 is connected with the output shaft of the variable frequency motor in the cigarette conveying system through the flexible coupling 200 and is used for outputting a voltage value sequence representing the rotation angle of the output shaft of the variable frequency motor; the processor 300 is respectively connected with the hall angle sensor 100 and the display 400, and is used for obtaining the cigarette storage amount of the cigarette conveying system according to the voltage value sequence and displaying the cigarette storage amount on the display 400.

In order to fix the hall angle sensor 100, the detection device may further include a fixing bracket 110 for fixedly mounting the hall angle sensor 100, and the fixing bracket 110 may be mounted on a housing or a rack of the cigarette conveying system.

The cigarette storage quantity detection method and device for the cigarette conveying system, provided by the embodiment of the invention, realize accurate detection of the cigarette storage quantity of the cigarette conveying system, facilitate statistics and comparison of the yield of the cigarette packaging machine set, and facilitate investigation of abnormal counting of the yield of the cigarette packaging machine set.

Thus, various embodiments of the present disclosure have been described in detail. Some details that are well known in the art have not been described in order to avoid obscuring the concepts of the present disclosure. It will be fully apparent to those skilled in the art from the foregoing description how to practice the presently disclosed embodiments.

Although some specific embodiments of the present disclosure have been described in detail by way of example, it should be understood by those skilled in the art that the foregoing examples are for purposes of illustration only and are not intended to limit the scope of the present disclosure. It will be understood by those skilled in the art that various changes may be made in the above embodiments or equivalents may be substituted for elements thereof without departing from the scope and spirit of the present disclosure. The scope of the present disclosure is defined by the appended claims.