CN108547175B

CN108547175B - Coating machine control method and coating machine

Info

Publication number: CN108547175B
Application number: CN201810165974.3A
Authority: CN
Inventors: 谢勇; 葛国建; 孙鹏; 程晓沪; 周卓
Original assignee: Gold East Paper Jiangsu Co Ltd
Current assignee: Gold East Paper Jiangsu Co Ltd
Priority date: 2018-02-27
Filing date: 2018-02-27
Publication date: 2020-07-03
Anticipated expiration: 2038-02-27
Also published as: CN108547175A

Abstract

The application discloses a coating machine control method and a coating machine, wherein the method comprises the following steps: setting a program module through a PLC (programmable logic controller), wherein the program module is used for controlling the pressure value exerted on the paper seeds by the main arm during the roll change; controlling a high-speed camera to obtain a paper state image of the paper seed when the roll of the coating machine is changed; setting a first line pressure value according to the paper image, and acquiring the first line pressure value through an operation interface; and controlling the pressure value applied to the paper type by the main arm within the unit distance according to the first line pressure value through the program module. In this way, this application can adapt to the production of the paper kind of different qualities, avoids the paper kind that the quality is not good to appear the paper fester when changing the book or even the trouble is disconnected paper, reduces manufacturing enterprise's economic loss, greatly reduced manufacturing cost.

Description

Coating machine control method and coating machine

Technical Field

The application relates to the technical field of papermaking, in particular to a coating machine control method and a coating machine.

Background

In the field of papermaking technology, coaters are the basic equipment of every paper machine and are an important guarantee for controlling the surface of paper. In the prior art, in order to wind up a paper product in production, a main arm of a coating machine is generally required to apply a large pressure to a paper seed, and the pressure applied to the paper seed by the preset main arm cannot be changed freely in the original program of the coating machine.

In a long-term research and development process, the inventor of the application finds that the quality of the current paper raw materials is uneven, so that the paper surface of the paper with poor quality is easily festered or even breaks due to failure and breaks due to overlarge pressure applied by a main arm in the moment of changing the roll, the roll changing fails, the paper needs to be drawn again for starting up, and the economic loss of a production enterprise is caused. Meanwhile, in the prior art, the roll change is usually carried out by adopting a water jet cutting roll change mode, the roll change speed is about 1600m/min, the width of the paper web of the paper type is about 10m, and the roll change time is about 1 second in the high-speed operation of equipment, so that human eyes cannot directly judge whether the paper surface of the paper type is broken or the paper is broken due to faults when the roll change is carried out.

Disclosure of Invention

The technical problem that this application mainly solved provides a coating machine control method and coating machine, can reduce manufacturing enterprise's economic loss.

In order to solve the technical problem, the application adopts a technical scheme that: there is provided a coater control method, the coater including: the method comprises the following steps that: setting a program module through a PLC (programmable logic controller), wherein the program module is used for controlling the pressure value exerted on the paper seeds by the main arm during the roll change; controlling a high-speed camera to obtain a paper state image of the paper seed when the roll of the coating machine is changed; setting a first line pressure value according to the paper image, and acquiring the first line pressure value through an operation interface; and controlling the pressure value applied to the paper type by the main arm within the unit distance according to the first line pressure value through the program module.

Wherein, set up first line pressure value according to the paper image, obtain first line pressure value through the operation interface and include: acquiring a time point of an abnormal paper state of the paper seed when the roll of the coating machine is changed through an operation interface according to the paper state image; and setting a first line pressure value according to the abnormal paper state, and acquiring the time point of the abnormal paper state image and the corresponding first line pressure value through an operation interface.

Wherein the coater further comprises: the main arm is controlled to apply a pressure value to the paper within a unit distance through the program module according to a first linear pressure value, and the pressure value comprises: acquiring a first speed value and a first pressure value corresponding to the first linear pressure value through an operation interface; the transmission mechanism and the hydraulic cylinder are driven by the program module, so that the transmission mechanism controls the main arm to rotate at a first speed value, and the hydraulic cylinder provides a first pressure value for the main arm.

Wherein, before the step of controlling, by the program module, the main arm to apply the pressure value to the paper type within the unit distance according to the first line pressure value, the method further comprises: setting a preset range through an operation interface; judging whether the first line pressure value is within a preset range or not; if yes, the main arm is controlled by the program module according to the first linear pressure value to apply a pressure value to the paper type within a unit distance.

Wherein, the coater also comprises a memory, the memory is coupled with the operation interface and is used for storing a second line pressure value, and the method also comprises: when the roll change of the paper type is finished, switching the first linear pressure value into a second linear pressure value through an operation interface; acquiring a second speed value and a second pressure value corresponding to the second linear pressure value through an operation interface; the PLC controller drives the transmission mechanism and the hydraulic cylinder to enable the transmission mechanism to control the main arm to rotate at a second speed value, and the hydraulic cylinder provides a second pressure value for the main arm; wherein the second line voltage value is greater than the first line voltage value.

Wherein the acquisition frequency of the high-speed camera is 50 frames/second.

In order to solve the above technical problem, another technical solution adopted by the present application is: a coater, comprising: the high-speed camera is used for acquiring a paper state image of the paper seed when the roll of the coating machine is changed; the operation interface is connected with the high-speed camera and used for acquiring a first line pressure value set according to the paper image; and the PLC is respectively connected with the operation interface and the at least two main arms, and is used for controlling the high-speed camera to acquire a paper state image of the paper type during the roll change of the coating machine and setting a program module, wherein the program module is used for controlling the pressure value exerted on the paper type by the main arms, and the PLC is also used for controlling the pressure value exerted on the paper type by the main arms in a unit distance according to the first linear pressure value through the program module.

Wherein the coater further comprises: the hydraulic cylinder is arranged below the main arm and used for providing pressure for the main arm; the transmission mechanism is connected with the main arm and is used for controlling the rotation of the main arm; the PLC is respectively connected with the hydraulic cylinder and the transmission mechanism, and is also used for driving the transmission mechanism and the hydraulic cylinder through the program module so that the transmission mechanism controls the main arm to rotate at the first speed value, and the hydraulic cylinder provides the first pressure value for the main arm.

Wherein, this coating machine still includes: the memory is coupled with the operation interface and used for storing the second linear pressure value; when the paper type is changed, the operation interface is used for switching the first linear pressure value into a second linear pressure value and acquiring a second speed value and a second pressure value corresponding to the second linear pressure value, the PLC is used for driving the transmission mechanism and the hydraulic cylinder so that the transmission mechanism controls the main arm to rotate at the second speed value, the hydraulic cylinder provides the second pressure value for the main arm, and the second linear pressure value is larger than the first linear pressure value.

Wherein the acquisition frequency of the high-speed camera is 50 frames/second.

The beneficial effect of this application is: in contrast to the state of the art, the present application provides a coater control method, the coater including: the method comprises the following steps that: setting a program module through a PLC (programmable logic controller), wherein the program module is used for controlling the pressure value exerted on the paper seeds by the main arm during the roll change; controlling a high-speed camera to obtain a paper state image of the paper seed when the roll of the coating machine is changed; setting a first line pressure value according to the paper image, and acquiring the first line pressure value through an operation interface; and controlling the pressure value applied to the paper type by the main arm within the unit distance according to the first line pressure value through the program module. In this way, this application sets up a program module through the PLC controller on the original procedure of coating machine, and utilize high-speed camera to acquire the paper attitude image when the paper kind is rewound, thereby when the rewound, can exert the pressure value at the paper kind in the unit distance according to the main arm of the first line pressure value control coating machine that corresponds with the paper attitude image, thereby can adapt to the production of the paper kind of different qualities, avoid the not good paper kind of quality paper kind to appear the paper fester or even the trouble paper break when the rewound, reduce manufacturing enterprise's economic loss, greatly reduced manufacturing cost.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts. Wherein:

FIG. 1 is a schematic flow diagram of one embodiment of a method for controlling a coater according to the present application;

FIG. 2 is a schematic view of the construction of the applicator of FIG. 1;

FIG. 3 is a schematic flow chart of step S13 in FIG. 1;

FIG. 4 is a schematic flow diagram of another embodiment of a method of controlling a coater of the present application;

FIG. 5 is a schematic view of the construction of the applicator of FIG. 4;

FIG. 6 is a schematic flow chart of yet another embodiment of a method of controlling a coater of the present application;

FIG. 7 is a schematic flow chart illustrating a method for controlling a coater according to still another embodiment of the present invention;

fig. 8 is a schematic view of the structure of the coater of fig. 7.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

Referring to fig. 1 and 2, fig. 1 is a schematic flow chart of an embodiment of a control method of a coating machine according to the present application, and fig. 2 is a schematic structural view of the coating machine in fig. 1. The coater 10 includes: high-speed camera 11, operation interface 12, PLC controller 13 and at least two main arms 14. The operation interface 12 is connected to the high-speed camera 11, and the PLC controller 13 is connected to the operation interface 12 and the main arm 14, respectively.

Specifically, in the present embodiment, at least two main arms 14 may be arranged in a rigid arrangement or an inclined arrangement, the paper seeds are transported between the adjacent main arms 14, and the main arms 14 apply a certain pressure to the paper seeds. The line pressure value, which is the amount of pressure applied by the main arm 14 to a paper seed per unit distance, is affected by the weight and diameter related parameters of the main arm 14. Preferably, the main arms 14 are two main arms 14 arranged in a straight line, and it should be understood that in some embodiments, the number of main arms 14 is not limited to 2, but may be other numbers, such as 8, 6, or 5.

The operation interface 12 may function together with the PLC controller 13 to perform command control of the coater 10, such as power on or power off. Meanwhile, the operation interface 12 is also used for displaying parameters of the coater 10, wherein the parameters may include a line pressure value of the coater 10, a speed value of rotation of the main arm 14, a pressure value applied by the main arm 14, and a type of paper.

The coating machine control method comprises the following steps:

step S11: a program module 131 is provided by the PLC 13, wherein the program module 131 is used to control the pressure value exerted by the main arm 14 on the paper type during the change of the lap.

In step S11, a program module 131 is set on the original program of the coater 10 by the PLC controller 13 without affecting the normal operation of other devices of the paper machine. Note that, in the present embodiment, the pressure value applied to the paper type by the main arm 14 is controlled by the program module 131 only at the time of the roll change. After the roll change is complete, the original program control of the coater 10 is resumed.

Step S12: the high-speed camera 11 is controlled to acquire a paper-state image of the paper seed when the coating machine 10 changes the roll.

In step S12, the change speed in the water jet change mode is about 1600m/min, the width of the paper web of the paper seed is about 10m, and the change time is about 1 second during the high-speed operation of the device, so that the human eyes cannot directly judge whether the paper surface is broken or out during the change of the paper seed. Therefore, in the present embodiment, it is necessary to acquire a paper-state image of the paper type at the time of roll change of the coater 10 by the high-speed camera 11, wherein the acquisition frequency of the high-speed camera 11 may be 50 frames/second. In other embodiments, the acquisition frequency of the high-speed camera 11 may be 100 frames/second, 200 frames/second, 300 frames/second, or 400 frames/second. The high-speed camera 11 may set an exposure time, and based on the set exposure time, capture a paper image of the paper seed when the coating machine 10 changes the roll. The high-speed camera 11 may be a dual camera, a single camera, or a multi-camera, and is not limited herein.

Step S13: and setting a first line pressure value according to the paper image, and acquiring the first line pressure value through the operation interface 12.

In step S13, a first line pressure value is set according to each frame of the paper image acquired by the high-speed camera 11 in step S12, and the first line pressure value is acquired through the operation interface 12. The first line pressure value is a pressure value applied to the paper type by the main arm 14 within a unit distance. In particular, there are a plurality of types of paper, such as a plurality of matte-surface paper grades, a plurality of smooth-surface paper grades or a plurality of surface-calendered paper grades. Different first line pressure values need to be set for different paper images of different paper types, and the first line pressure values are acquired through the operation interface 12.

In other embodiments, the PLC controller 13 may perform binarization processing on the paper-state image obtained by the high-speed camera 11 when the coating machine 10 changes rolls, and analyze the parameter characteristics of the binarized paper-state image by using a neural network algorithm to obtain the first line pressure value.

Step S14: the main arm 14 is controlled by the program module 131 to apply a pressure value to the paper type per unit distance according to the first line pressure value.

In step S14, after the operation interface 12 acquires the first line pressure value, the operation interface 12 sends an instruction to the program module 131, and when the reel change occurs, the program module 131 starts operating, and the program module 131 controls the main arm 14 to apply the pressure value to the paper type per unit distance according to the first line pressure value.

In one application scenario, the toughness of the paper seed stock is reduced due to the uneven quality of the existing paper seed stock, the paper seed stock is relatively brittle, and the pressure exerted on the paper seed by the preset main arm 14 cannot be changed freely in the original program of the coating machine 10. Therefore, at the moment of changing the roll, the pressure applied by the main arm 14 is too large, which easily causes the paper surface of the paper with poor quality to be broken or even to break the paper, and causes the roll changing failure. Meanwhile, because the roll change is carried out by adopting a water jet cutting roll change mode, the roll change speed is about 1600m/min, and the width of the paper web of the paper seed is about 10m, the roll change time is about 1 second in the high-speed operation of the equipment, and human eyes cannot directly judge whether the paper surface is festered or broken when the roll change is carried out.

According to the method and the device, after the high-speed camera 11 acquires the paper state images of the paper seeds when the coating machine 10 changes the roll, the coating machine 10 stops working, at the moment, the corresponding first line pressure value is set aiming at each frame of paper state image by analyzing each frame of paper state image acquired by the high-speed camera 11, and the first line pressure value is acquired through the operation interface 12. When the operation interface 12 obtains the first line voltage value, the operation interface 12 sends an instruction to the program module 131. The coater 10 is restarted, and when the reel is changed, the program module 131 is started, and the program module 131 controls the pressure value applied to the paper type by the main arm 14 in the unit distance at the time of the reel change based on the first line pressure value. Further, in order to reduce the probability of the roll change failure, the above operations can be repeated, so that the pressure value applied to the paper type by the main arm 14 in a unit distance in the roll change process can reach an ideal target, and the paper surface of the paper type with poor quality is prevented from being broken or even broken during the roll change process.

Through the above manner, in the present embodiment, the program module 131 is set on the original program of the coating machine 10 through the PLC controller 13, and the high-speed camera 11 is used to obtain the paper state image when the paper type is changed, so that when the paper type is changed, the main arm 14 of the coating machine 10 can be controlled according to the first linear pressure value corresponding to the paper state image to apply the pressure value to the paper type within the unit distance, thereby adapting to the production of the paper type with different qualities, avoiding the paper surface ulceration and even the paper fault breakage when the paper type with poor quality is changed, reducing the economic loss of production enterprises, and greatly reducing the production cost.

Referring to fig. 2 and 3, fig. 3 is a schematic flow chart of step S13 in fig. 1. Step S13 includes:

substep S131: the time point of the abnormal paper state of the paper seed when the coating machine 10 changes the roll is obtained through the operation interface 12 according to the paper state image.

Substep S132: and setting a first line pressure value according to the abnormal paper state, and acquiring the time point of the abnormal paper state image and the corresponding first line pressure value through the operation interface 12.

Specifically, in the present embodiment, each frame of the paper image acquired by the high-speed camera 11 in step S12 is analyzed through the operation interface 12, and the number of frames corresponding to the abnormal paper image is obtained through analysis, so as to obtain the time point corresponding to the abnormal paper image. A corresponding first line pressure value is set for each abnormal paper state image, and the time point of the abnormal paper state image and the corresponding first line pressure value are obtained through the operation interface 12, that is, the time point of the abnormal paper state has the corresponding first line pressure value.

In the above manner, the present embodiment obtains the time point of the paper type when the coating machine 10 changes the roll according to the paper state image, and sets the corresponding first line pressure value at the time point of the paper type when the abnormal paper state occurs through the operation interface 12, so that the pressure value applied to the paper type by the main arm 14 in the unit distance during the roll change process reaches the ideal target.

Referring to fig. 4 and 5, fig. 4 is a schematic flow chart of another embodiment of the control method of the coating machine 10 of the present application, and fig. 5 is a schematic structural view of the coating machine 10 of fig. 4.

The coater 10 further includes: hydraulic cylinder 16 and drive mechanism 17, PLC controller 13 connects hydraulic cylinder 16 and drive mechanism 17 respectively. The hydraulic cylinder 16 is arranged below the main arm 14 and used for providing pressure for the main arm 14; the transmission mechanism 17 is used for controlling the rotation of the main arm 14; the PLC controller 13 is used for driving the transmission mechanism 17 and the hydraulic cylinder 16 to perform corresponding operations.

Specifically, in the present embodiment, hydraulic cylinder 16 is provided below at least two main arms 14 for supplying pressure to at least two main arms 14. It should be appreciated that hydraulic cylinder 16 provides pressure to main arms 14 whether the main arms 14 are arranged in a rigid or angled arrangement. The actuator 17 is used to control the rotation of the main arms 14 to control the speed of the paper, it should be understood that the actuator 17 can control a specific number of main arms 14 to rotate individually according to the user's needs, such as controlling one main arm 14 to rotate, or controlling a plurality of main arms 14 to rotate together. The PLC 13 drives the transmission mechanism 17 to control the main arm 14 to rotate, and the PLC 13 drives the hydraulic cylinder 16 to provide pressure for the main arm 14.

The method comprises the following steps:

step S21: the first speed value and the first pressure value corresponding to the first linear pressure value are acquired through the operation interface 12.

In step S21, first curve coordinate data may be established in which the first line pressure value corresponds to a first speed value at which the actuator 17 controls the rotation of the master arm 14. Specifically, under the same paper type, a plurality of different line pressure values can be obtained through the operation interface 12, a plurality of first speed values of the main arm 14 driven by the transmission mechanism 17 corresponding to the line pressure values are recorded through the operation interface 12, and finally, a mathematical model is established through a plurality of points to obtain first curve coordinate data. Second curve coordinate data may be established in which the first line pressure value corresponds to the first pressure value that hydraulic cylinder 16 supplies to master arm 14. Specifically, under the same paper type, a plurality of different line pressure values can be obtained through the operation interface 12, a plurality of first pressure values output by the hydraulic cylinder 16 corresponding to the first line pressure values are recorded through the operation interface 12, and finally, a mathematical model is established through a plurality of points to obtain second curve coordinate data. The first speed value corresponding to the first linear pressure value in the first curve coordinate data is obtained through the operation interface 12, and the first pressure value corresponding to the first linear pressure value in the second curve coordinate data is obtained.

Step S22: the actuator 17 and the hydraulic cylinder 16 are driven by the program module 131 so that the actuator 17 controls the main arm 14 to rotate at a first speed value, and the hydraulic cylinder 16 provides a first pressure value for the main arm 14.

In step S22, the PLC controller 13 drives the actuator 17 and the hydraulic cylinder 16 through the program module 131 so that the actuator 17 controls the main arm 14 to rotate at the first speed value, and the hydraulic cylinder 16 provides the first pressure value to the main arm 14. It should be noted that in step S22, the first speed value at which the transmission mechanism 17 drives the main arm 14 to rotate is not equal to the speed value of the paper type, and the speed value of the paper type is affected by the gravity of the main arm 14, so the first speed value at which the transmission mechanism 17 drives the main arm 14 to rotate in this embodiment may be greater than the actual speed value of the paper type. The pressure value provided by the hydraulic cylinder 16 to the main arms 14 is equally distributed between the adjacent main arms 14, and the first pressure value output by the hydraulic cylinder 16 in the present embodiment may be larger than the sum of the pressure values respectively exerted on the paper seeds because of the gravity of the main arms 14 themselves.

In this way, the program module 131 drives the transmission mechanism 17 to control the main arm 14 to rotate at the first speed and drives the hydraulic cylinder 16 to provide the first pressure value for the main arm 14, so as to control the pressure value applied to the paper type by the main arm 14 in a unit distance during the reel change.

Referring to fig. 1 and 6, fig. 6 is a schematic flow chart of a method for controlling the coater 10 according to another embodiment of the present invention. Prior to step S14, the method further comprises:

step S31: a preset range is set through the operation interface 12;

step S32: and judging whether the first line pressure value is within a preset range.

Step S33: if so, the main arm 14 is controlled by the program module 131 to apply a pressure value to the paper type per unit distance according to the first line pressure value.

Specifically, in the present embodiment, a preset range may be set through the operation interface 12, wherein the preset range may be 20-90N/m, for example, 20N/m, 50N/m, 70N/m, 90N/m. When the operation interface 12 obtains the first line pressure value input by the user, it is determined whether the first line pressure value exceeds a preset range. When the first linear pressure value is within the preset range, the operation interface 12 sends an instruction to the program module 131, the program module 131 starts to operate, and the program module 131 controls the main arm 14 to apply the pressure value of the paper type within the unit distance according to the first linear pressure value. When the input first line voltage value is outside the preset range, the operation interface 12 generates an alarm and does not send an instruction to the program module 131. In addition, if the PLC controller 13 detects that the master arm 14 is out of order, an alarm may be generated, and after the failure is cleared, the program module 131 may resume normal operation.

In this way, the first line pressure value is controlled to be within the preset range by setting the preset range, so that the device abnormality caused by human error is avoided, the coating machine 10 can operate at a lower line pressure value, and the roll changing process of different paper types is met.

Referring to fig. 7 and 8, fig. 7 is a schematic flow chart of a further embodiment of the control method of the coating machine 10 of the present application, and fig. 8 is a schematic structural view of the coating machine 10 of fig. 7. The coater 10 further includes a memory 18, the memory 18 is coupled to the operation interface 12, and the memory 18 is used for storing the second linear pressure value. Further, the memory 18 may also be used to store the first line pressure value, the preset range, the first curve coordinate data and the second curve coordinate data in the above-described embodiment.

The method further comprises the following steps:

step S41: when the paper type is completed to change the roll, the first line pressure value is switched to the second line pressure value through the operation interface 12.

Wherein the second line voltage value is greater than the first line voltage value.

In step S41, in order to wind up the paper product during production, the main arm 14 of the coating machine 10 is usually required to apply a large pressure to the paper seed. Therefore, when the paper type completes the roll change, the line pressure value is switched to a larger second line pressure value through the operation interface 12.

Step S42: and acquiring a second speed value and a second pressure value corresponding to the second linear pressure value through the operation interface 12.

Step S43: the transmission mechanism 17 and the hydraulic cylinder 16 are driven by the PLC controller 13, so that the transmission mechanism 17 controls the main arm 14 to rotate at a second speed, and the hydraulic cylinder 16 provides a second pressure value for the main arm 14.

Specifically, the working principle of the second line pressure value, the second speed value and the second pressure value is consistent with the working principle of the first line pressure value, the first speed value and the first pressure value, and the description thereof is omitted here.

With continued reference to fig. 1, the coater 10 includes: high-speed camera 11, operation interface 12, PLC controller 13 and at least two main arms 14.

The high-speed camera 11 is used for acquiring a paper-state image of the paper seed when the coating machine 10 changes the roll. The operation interface 12 is connected to the high-speed camera 11 and configured to obtain a first line pressure value set according to the paper image. And the PLC controller 13 is respectively connected to the operation interface 12 and the at least two main arms 14, and is configured to control the high-speed camera 11 to obtain a paper-state image of the paper seed when the coating machine 10 changes the roll, and to set a program module 131, where the program module 131 is configured to control a pressure value applied to the paper seed by the main arm 14, and the PLC controller 13 is further configured to control a pressure value applied to the paper seed by the main arm 14 in a unit distance according to the first linear pressure value by the program module 131.

In one embodiment, the acquisition frequency of the high-speed camera 11 is 50 frames/second.

With continued reference to fig. 2, the coater 10 further includes: hydraulic cylinder 16 and transmission 17.

A hydraulic cylinder 16 is disposed below main arm 14 for providing pressure to main arm 14. And the transmission mechanism 17 is connected with the main arm 14 and is used for controlling the rotation of the main arm 14. The operation interface 12 is configured to obtain a first speed value and a first pressure value corresponding to the first line pressure value, the PLC controller 13 is connected to the hydraulic cylinder 16 and the transmission mechanism 17, respectively, the PLC controller 13 is further configured to drive the transmission mechanism 17 and the hydraulic cylinder 16 through the program module 131, so that the transmission mechanism 17 controls the main arm 14 to rotate at the first speed value, and the hydraulic cylinder 16 provides the first pressure value for the main arm 14.

With continued reference to fig. 3, the coater 10 further includes a memory 18, the memory 18 being coupled to the operator interface 12. The memory 18 is used for storing the second line voltage value.

When the paper type is changed, the operation interface 12 is configured to switch the first linear pressure value to a second linear pressure value and obtain a second speed value and a second pressure value corresponding to the second linear pressure value, the PLC controller 13 is configured to drive the transmission mechanism 17 and the hydraulic cylinder 16, so that the transmission mechanism 17 controls the main arm 14 to rotate at the second speed value, the hydraulic cylinder 16 provides the second pressure value for the main arm 14, and the second linear pressure value is greater than the first linear pressure value.

It should be noted that the device of the above embodiment can perform the steps in the above method, and the detailed description of the related contents refers to the above method section, which is not described in detail herein.

The above embodiments are merely examples and are not intended to limit the scope of the present disclosure, and all modifications, equivalents, and flow charts using the contents of the specification and drawings of the present disclosure, or their direct or indirect application to other related arts, are included in the scope of the present disclosure.

Claims

1. A coater control method, characterized in that the coater comprises: the method comprises the following steps of:

setting a program module through the PLC, wherein the program module is used for controlling the pressure value exerted on the paper seeds by the main arm during the roll change;

controlling the high-speed camera to obtain a paper state image of the paper seed when the roll of the coating machine is changed;

setting a first line pressure value according to the paper image, and acquiring the first line pressure value through the operation interface; alternatively, the first and second electrodes may be,

performing binarization processing on the paper state image of the paper type when the roll of the coating machine is changed through the PLC, and analyzing the parameter characteristics of the binarized paper state image by using a neural network algorithm to obtain the first line pressure value;

and controlling the pressure value applied to the paper type by the main arm in a unit distance according to the first linear pressure value only during roll change through the program module, and recovering the original program control of the coating machine after the roll change is finished.

2. The method according to claim 1, wherein the setting of the first line pressure value according to the paper image includes:

acquiring a time point of the abnormal paper state of the paper seed when the roll of the coating machine is changed through the operation interface according to the paper state image;

and setting a first line pressure value according to the abnormal paper state, and acquiring the time point of the abnormal paper state image and the corresponding first line pressure value through the operation interface.

3. The method of claim 1, the coater further comprising: the main arm is provided with a hydraulic cylinder and a transmission mechanism, the hydraulic cylinder is arranged below the main arm and used for providing pressure for the main arm, the transmission mechanism is used for controlling the rotation of the main arm, the PLC is respectively connected with the hydraulic cylinder and the transmission mechanism, and the PLC is used for driving the transmission mechanism and the hydraulic cylinder to execute corresponding operations, and the main arm is controlled by the program module according to the first linear pressure value to apply a pressure value to the paper seeds in a unit distance, wherein the control of the main arm according to the first linear pressure value comprises the following steps:

acquiring a first speed value and a first pressure value corresponding to the first linear pressure value through the operation interface;

and driving the transmission mechanism and the hydraulic cylinder through the program module so that the transmission mechanism controls the main arm to rotate at the first speed value, and the hydraulic cylinder provides the first pressure value for the main arm.

4. The method of claim 1, wherein prior to the step of controlling, by the program module, the main arm to apply a pressure value per unit distance to the paper seed as a function of the first line pressure value, the method further comprises:

setting a preset range through the operation interface;

judging whether the first line pressure value is within the preset range or not;

and if so, controlling the main arm to apply a pressure value to the paper type within a unit distance according to the first linear pressure value through the program module.

5. The method of claim 3, wherein the coater further comprises a memory coupled to the operator interface for storing a second line pressure value, the method further comprising:

when the paper type is changed, the first linear pressure value is switched to the second linear pressure value through the operation interface;

acquiring a second speed value and a second pressure value corresponding to the second linear pressure value through the operation interface;

driving the transmission mechanism and the hydraulic cylinder through the PLC controller so that the transmission mechanism controls the main arm to rotate at the second speed value, and the hydraulic cylinder provides the second pressure value for the main arm;

6. The method of claim 1, wherein the acquisition frequency of the high speed camera is 50 frames/second.

7. A coater, comprising:

the high-speed camera is used for acquiring a paper state image of the paper seed when the roll of the coating machine is changed;

the operation interface is connected with the high-speed camera and used for acquiring a first line pressure value set according to the paper image;

a PLC controller which is respectively connected with the operation interface and at least two main arms and is used for controlling the high-speed camera to obtain the paper state image of the paper type when the roll of the coating machine is changed, the PLC is used for carrying out binarization processing on the paper state image of the paper type when the roll of the coating machine is changed, and the parameter characteristics of the binarized paper-state image are analyzed by using a neural network algorithm, to obtain the first line voltage value, the PLC controller is also used for setting a program module, wherein the program module is used for controlling the pressure value exerted on the paper seeds by the main arm only when the roll is changed, the PLC is also used for controlling the pressure value applied to the paper type by the main arm in a unit distance through the program module according to the first linear pressure value, and recovering the original program control of the coating machine after the roll change is finished.

8. A coater according to claim 7, wherein the coater further comprises:

the hydraulic cylinder is arranged below the main arm and used for providing pressure for the main arm;

the transmission mechanism is connected with the main arm and is used for controlling the rotation of the main arm;

the PLC is respectively connected with the hydraulic cylinder and the transmission mechanism, and is further used for driving the transmission mechanism and the hydraulic cylinder through the program module, so that the transmission mechanism controls the main arm to rotate at the first speed value, and the hydraulic cylinder provides the first pressure value for the main arm.

9. A coater according to claim 8, further comprising:

the memory is coupled with the operation interface and used for storing a second linear pressure value;

when the paper type is changed, the operation interface is used for switching the first linear pressure value to the second linear pressure value and acquiring a second speed value and a second pressure value corresponding to the second linear pressure value, the PLC controller is used for driving the transmission mechanism and the hydraulic cylinder so that the transmission mechanism controls the main arm to rotate at the second speed value, the hydraulic cylinder provides the second pressure value for the main arm, and the second linear pressure value is larger than the first linear pressure value.

10. The coater of claim 7, wherein the acquisition frequency of the high speed camera is 50 frames/second.