Intelligent regulation and control system and method for automatic flour production line

Abstract

The invention belongs to the field of flour processing, and particularly provides an intelligent regulation and control system and method for an automatic flour production line. According to the system, the actual rotating speed of equipment is acquired through an acquisition module, an acquired speed signal is analyzed and processed through a control module, and the sewing line speed of a sewing machine serves as a reference; the running line speeds of other parts are set in advance according to the reference value, the line speed values are monitored in real time through the speed sensor, the control module compares the measured value with the line speed value of the sewing machine, and when the deviation value exceeds a certain range, automatic triggering is conducted. The control module adjusts the frequency to achieve the effect of controlling the rotating speed or the linear speed to keep the rotating speed or the linear speed in a synchronous speed state all the time, so that the function of intelligent adjustment is achieved, and operation of all equipment on a production line is integrated; therefore, the problem of equipment operation cooperation in each process is effectively solved, the problems of seam defects and the like are prevented, the production efficiency is remarkably improved, and the labor cost is reduced.

Description

Technical Field

[0001] The invention belongs to the field of flour processing, and in particular relates to an intelligent control system and method for an automated flour production line. Background Art

[0002] At present, in the automatic production line of flour processing, it is often necessary for multiple devices on the assembly line to cooperate with each other, and the motor running speed of each device is related. The accuracy of the speed correlation required for the cooperation of multiple motors is particularly important. For example, the automatic packaging production line of bag flour integrates a series of action processes such as bag feeding, bag hanging, bag clamping, conveying, folding, sewing and cutting. These processes need to be closely coordinated (highly synchronized) to perfectly package the bags. However, this system requires manual adjustment and switching when switching between multiple working modes. In addition, various factors such as load changes and wear during the operation of the entire system will have an adverse effect on the speed correlation and coordination of the system, resulting in system instability, and there will be seam wrinkles, skewness, leaks and other seam defects. Although the existing production line is equipped with a monitoring unit, this monitoring unit requires timely manual management and control by humans, which requires the establishment of a special manual position to carry out equipment control management, which increases the cost of operation and reduces efficiency. Summary of the invention

[0003] In order to address the deficiencies in the prior art, the present invention aims to provide an intelligent control method for an automated flour production line. The present invention can detect the operating status of the equipment in real time, and use the sewing line speed of the sewing machine as a benchmark, thereby adjusting the operating line speed of other equipment on the production line, thereby effectively solving the equipment operation coordination problem in each process, thereby preventing problems such as seam defects, significantly improving production efficiency, and reducing labor costs.

[0004] In order to achieve the above object, the technical solution adopted by the present invention is:

[0005] An intelligent control system for an automated flour production line comprises a speed acquisition module and a control module, wherein the speed acquisition module is connected to the control module; the speed acquisition module is used to monitor the actual rotation speed of each device on the production line; the control module obtains the actual rotation speed signal of the device acquired by the speed acquisition module, and compares it with the theoretical operating speed of the device, thereby adjusting the operating speed of the relevant device.

[0006] Furthermore, the production line equipment monitored by the speed acquisition module includes bag sewing machines, folding machines, bagging machines and belt conveyors.

[0007] Furthermore, the speed acquisition module uses a speed sensor to monitor in real time or update the monitored speed of the device every few seconds.

[0008] Furthermore, after the control module obtains the actual rotation speed signal of the equipment collected by the speed acquisition module, the sewing line speed of the sewing machine is used as a reference, and the operating line speeds of other equipment are set in advance according to this reference value. These line speed values ​​are monitored in real time by speed sensors, and the control module compares the actual measured value of the equipment with the set value. If the deviation value exceeds a certain range, it will be automatically triggered, and the control module will adjust the frequency to control the rotation speed or line speed so that it always remains in the synchronous speed state.

[0009] Correspondingly, based on the above-mentioned intelligent control system of the flour automatic production line, the present invention also proposes an intelligent control method for the flour automatic production line, which is implemented based on the following method:

[0010] S1. Use the speed sensor on the sewing machine to detect the actual speed of the sewing machine sprocket, set the stitch length of the sewing machine, and multiply the actual speed of the sewing machine sprocket by the stitch length to obtain the operating speed of the sewing machine on the production line, and use it as the reference speed;

[0011] S2. Folding machine speed adjustment:

[0012] S2-1. Use the speed sensor on the folding machine to monitor the actual speed of the folding machine driving wheel. According to the number of teeth on the folding machine driving wheel multiplied by the length of each section of the chain on the folding machine, the distance traveled by the folding machine per circle is obtained. Then multiplied by the actual speed of the folding machine driving wheel, the actual running speed of the folding machine on the production line can be obtained.

[0013] S2-2. Calculate the theoretical operating speed of the folding machine on the production line according to the reference speed in step S1;

[0014] S2-3. Calculate the difference between the theoretical operating speed and the actual operating speed of the folding machine, and then adjust the operating speed of the folding machine by changing the frequency of the folding machine inverter;

[0015] S3. Speed ​​adjustment of bagging machine:

[0016] S3-1. Use the speed sensor on the bagging machine to detect the actual speed of the driving wheel of the bagging machine. Multiply the number of teeth on the driving wheel of the bagging machine by the length of each section of the chain on the bagging machine to obtain the distance traveled by the bagging machine per circle. Multiply it by the actual speed of the driving wheel of the bagging machine to obtain the actual running speed of the bagging machine on the production line.

[0017] S3-2. Calculate the theoretical operating speed of the bagging machine on the production line according to the reference speed in step S1;

[0018] S3-3 calculates the difference between the theoretical operating speed and the actual operating speed of the bagging machine, and then adjusts the operating speed of the bagging machine by changing the frequency of the inverter of the bagging machine;

[0019] S4. Speed ​​adjustment of belt conveyor:

[0020] S4-1. Use the speed sensor on the belt conveyor to detect the actual speed of the belt conveyor's driving wheel. Multiply the number of teeth on the belt conveyor's driving wheel by the length of each section of the belt conveyor chain to obtain the distance the belt conveyor travels per circle. Multiply this by the actual speed of the belt conveyor's driving wheel to obtain the actual running speed of the belt conveyor on the production line.

[0021] S4-2. Calculate the theoretical operating speed of the belt conveyor on the production line according to the reference speed in step S1;

[0022] S4-3. Calculate the difference between the theoretical running speed and the actual running speed of the belt conveyor, and then adjust the running speed of the belt conveyor by changing the frequency of the belt conveyor inverter.

[0023] When the frequency converter controls the corresponding equipment to adjust the speed, the adjusted speed v′ is calculated based on the sum of the actual operating speed of the corresponding equipment and the speed difference that needs to be adjusted:

[0024] v′=v1+Δv,

[0025] Among them, v1 represents the actual operating speed of the current equipment on the production line, and Δv represents the speed difference that needs to be adjusted;

[0026] The speed difference Δv that needs to be adjusted is calculated as follows:

[0027]

[0028] Among them, v c It indicates the actual speed of the sprocket or driving wheel of the equipment detected by the speed sensor, and v0 indicates the theoretical operating speed of the equipment.

[0029] The beneficial effects of the present invention are:

[0030] The present invention collects the actual rotation speed of the equipment through the acquisition module, and then the control module analyzes and processes the acquired speed signal, taking the sewing line speed of the sewing machine as a reference, and the operating line speeds of other parts are set in advance with this reference value, and these line speed values ​​are monitored in real time through the speed sensor, and the control module compares the measured value with the sewing machine line speed value. If the deviation value exceeds a certain range, it will be automatically triggered, and the control module adjusts the frequency to achieve the effect of controlling the rotation speed or line speed so that it always keeps it in the synchronous speed state, thereby achieving the function of intelligent adjustment, thereby integrating the operation of various equipment on the production line. Then, the equipment operation coordination problem in each process is effectively solved, thereby preventing problems such as seam defects, significantly improving production efficiency, and reducing labor costs. DETAILED DESCRIPTION

[0031] The principles and features of the present invention are described below. The examples given are only used to explain the present invention and are not intended to limit the scope of use of the present invention.

[0032] The present invention proposes an intelligent control system for an automated flour production line, comprising a speed acquisition module and a control module, wherein the speed acquisition module is connected to the control module; the speed acquisition module is used to monitor the actual rotation speed of equipment on the production line, including a bag sewing machine, an edge folding machine, a bagging machine, a belt conveyor and the like; the speed acquisition module adopts a speed sensor to monitor in real time or update the monitoring speed of the equipment every few seconds.

[0033] The control module obtains the actual rotation speed signal of the equipment collected by the speed acquisition module, and compares it with the theoretical operating speed of the equipment, thereby adjusting the operating speed of the relevant equipment.

[0034] Correspondingly, the present invention also proposes an intelligent control method for an automated flour production line, which is implemented based on the following method:

[0035] S1. Use the speed sensor on the sewing machine to detect the actual speed of the sewing machine sprocket, set the stitch length of the sewing machine, and multiply the actual speed of the sewing machine sprocket by the stitch length to obtain the operating speed of the sewing machine on the production line, and use it as the reference speed;

[0036] S2. Folding machine speed adjustment:

[0037] S2-1. Use the speed sensor on the folding machine to monitor the actual speed of the folding machine driving wheel. According to the number of teeth on the folding machine driving wheel multiplied by the length of each section of the chain on the folding machine, the distance traveled by the folding machine per circle is obtained. Then multiplied by the actual speed of the folding machine driving wheel, the actual running speed of the folding machine on the production line can be obtained.

[0038] S2-2. Calculate the theoretical operating speed of the folding machine on the production line according to the reference speed in step S1;

[0039] S2-3. Calculate the difference between the theoretical operating speed and the actual operating speed of the folding machine, and then adjust the operating speed of the folding machine by changing the frequency of the folding machine inverter;

[0040] S3. Speed ​​adjustment of bagging machine:

[0041] S3-1. Use the speed sensor on the bagging machine to detect the actual speed of the driving wheel of the bagging machine. Multiply the number of teeth on the driving wheel of the bagging machine by the length of each section of the chain on the bagging machine to obtain the distance traveled by the bagging machine per circle. Multiply it by the actual speed of the driving wheel of the bagging machine to obtain the actual running speed of the bagging machine on the production line.

[0042] S3-2. Calculate the theoretical operating speed of the bagging machine on the production line according to the reference speed in step S1;

[0043] S3-3 calculates the difference between the theoretical operating speed and the actual operating speed of the bagging machine, and then adjusts the operating speed of the bagging machine by changing the frequency of the inverter of the bagging machine;

[0044] S4. Speed ​​adjustment of belt conveyor:

[0045] S4-1. Use the speed sensor on the belt conveyor to detect the actual speed of the belt conveyor's driving wheel. Multiply the number of teeth on the belt conveyor's driving wheel by the length of each section of the belt conveyor chain to obtain the distance the belt conveyor travels per circle. Multiply this by the actual speed of the belt conveyor's driving wheel to obtain the actual running speed of the belt conveyor on the production line.

[0046] S4-2. Calculate the theoretical operating speed of the belt conveyor on the production line according to the reference speed in step S1;

[0047] S4-3. Calculate the difference between the theoretical running speed and the actual running speed of the belt conveyor, and then adjust the running speed of the belt conveyor by changing the frequency of the belt conveyor inverter.

[0048] When the frequency converter controls the corresponding equipment to adjust the speed, the adjusted speed v' is calculated based on the sum of the actual operating speed of the corresponding equipment and the speed difference that needs to be adjusted:

[0049] v′=v1+Δv,

[0050] Among them, v1 represents the actual operating speed of the current equipment on the production line, and Δv represents the speed difference that needs to be adjusted;

[0051] The speed difference Δv that needs to be adjusted is calculated as follows:

[0052]

[0053] Among them, v c It indicates the actual speed of the sprocket or driving wheel of the equipment detected by the speed sensor, and v0 indicates the theoretical operating speed of the equipment.

[0054] The present invention collects the actual rotation speed of the equipment through the acquisition module, and then the control module analyzes and processes the acquired speed signal, takes the sewing line speed of the sewing machine as a reference, and the operating line speeds of other parts are set in advance based on this reference value, and these line speed values ​​are monitored in real time by the speed sensor, and the control module compares the measured value with the sewing machine line speed value. If the deviation value exceeds a certain range, it will be automatically triggered, and the control module adjusts the frequency to achieve the effect of controlling the rotation speed or line speed to always keep it in the synchronous speed state, thereby achieving the function of intelligent adjustment, thereby integrating the operation of various equipment on the production line.

[0055] The present invention can detect the operating status of the equipment in real time, and use the sewing line speed of the sewing machine as a benchmark, and use this as a reference to adjust the operating line speed of other equipment on the production line, thereby effectively solving the equipment operation coordination problem in each process, thereby preventing problems such as seam defects, significantly improving production efficiency, and reducing labor costs.

[0056] Obviously, the embodiments described above are only a part of the embodiments of the present application, rather than all the embodiments, and only the preferred embodiments of the present application are given, but the patent scope of the present application is not limited. The present application can be implemented in many different forms. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present application more thorough and comprehensive. Although the present application is described in detail with reference to the aforementioned embodiments, for those skilled in the art, it is still possible to modify the technical solutions recorded in the aforementioned specific implementation methods, or to perform equivalent replacement of some of the technical features therein. Any equivalent structure made using the contents of the present application specification, directly or indirectly used in other related technical fields, is similarly within the scope of patent protection of the present application.

Claims

1. An intelligent control system for an automated flour production line, characterized in that: It includes a speed acquisition module and a control module, wherein the speed acquisition module is connected to the control module; the speed acquisition module is used to monitor the actual rotation speed of each device on the production line; The control module obtains the actual rotation speed signal of the device collected by the speed collection module, and compares it with the theoretical operating speed of the device, thereby adjusting the operating speed of the relevant device.

2. The intelligent control system for the flour automated production line according to claim 1 is characterized by: The production line equipment monitored by the speed acquisition module includes bag sewing machines, folding machines, bagging machines and belt conveyors.

3. The intelligent control system for the flour automated production line according to claim 2 is characterized in that: The speed acquisition module uses a speed sensor to monitor the speed of the device in real time or once every few seconds to update the monitoring speed.

4. The intelligent control system for the flour automated production line according to claim 3 is characterized by: After the control module obtains the actual rotation speed signal of the equipment collected by the speed acquisition module, the sewing line speed of the sewing machine is used as a reference, and the operating line speeds of other equipment are set in advance based on this reference value. These line speed values ​​are monitored in real time by speed sensors, and the control module compares the actual measured value of the equipment with the set value. If the deviation value exceeds a certain range, it will be automatically triggered, and the control module will adjust the frequency to control the rotation speed or line speed so that it always remains in the synchronous speed state.

5. The intelligent control method of the flour automated production line implemented by the intelligent control system of the flour automated production line according to claim 4 is characterized in that: This method is implemented based on the following methods: S1. Use the speed sensor on the sewing machine to detect the actual speed of the sewing machine sprocket, set the stitch length of the sewing machine, and multiply the actual speed of the sewing machine sprocket by the stitch length to obtain the operating speed of the sewing machine on the production line, and use it as the reference speed; S2. Folding machine speed adjustment: S2-1. Use the speed sensor on the folding machine to monitor the actual speed of the folding machine driving wheel. According to the number of teeth on the folding machine driving wheel multiplied by the length of each section of the chain on the folding machine, the distance traveled by the folding machine per circle is obtained. Then multiplied by the actual speed of the folding machine driving wheel, the actual running speed of the folding machine on the production line can be obtained. S2-2. Calculate the theoretical operating speed of the folding machine on the production line according to the reference speed in step S1; S2-3. Calculate the difference between the theoretical operating speed and the actual operating speed of the folding machine, and then adjust the operating speed of the folding machine by changing the frequency of the folding machine inverter; S3. Speed ​​adjustment of bagging machine: S3-1. Use the speed sensor on the bagging machine to detect the actual speed of the driving wheel of the bagging machine. Multiply the number of teeth on the driving wheel of the bagging machine by the length of each section of the chain on the bagging machine to obtain the distance traveled by the bagging machine per circle. Multiply it by the actual speed of the driving wheel of the bagging machine to obtain the actual running speed of the bagging machine on the production line. S3-2. Calculate the theoretical operating speed of the bagging machine on the production line according to the reference speed in step S1; S3-3 calculates the difference between the theoretical operating speed and the actual operating speed of the bagging machine, and then adjusts the operating speed of the bagging machine by changing the frequency of the inverter of the bagging machine; S4. Speed ​​adjustment of belt conveyor: S4-1. Use the speed sensor on the belt conveyor to detect the actual speed of the belt conveyor's driving wheel. Multiply the number of teeth on the belt conveyor's driving wheel by the length of each section of the belt conveyor chain to obtain the distance the belt conveyor travels per circle. Multiply this by the actual speed of the belt conveyor's driving wheel to obtain the actual running speed of the belt conveyor on the production line. S4-2. Calculate the theoretical operating speed of the belt conveyor on the production line according to the reference speed in step S1; S4-3. Calculate the difference between the theoretical running speed and the actual running speed of the belt conveyor, and then adjust the running speed of the belt conveyor by changing the frequency of the belt conveyor inverter.

6. The intelligent control method for the flour automated production line according to claim 5, characterized in that: When the frequency converter controls the corresponding equipment to adjust the speed, the adjusted speed v' is calculated based on the sum of the actual operating speed of the corresponding equipment and the speed difference that needs to be adjusted: v′=v1+Δv, Among them, v1 represents the actual operating speed of the current equipment on the production line, and Δv represents the speed difference that needs to be adjusted; The speed difference Δv that needs to be adjusted is calculated as follows: Among them, v c It indicates the actual speed of the sprocket or driving wheel of the equipment detected by the speed sensor, and v0 indicates the theoretical operating speed of the equipment.

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