CN111039557B - Transmission system and control method thereof - Google Patents
Transmission system and control method thereof Download PDFInfo
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- CN111039557B CN111039557B CN201911363460.XA CN201911363460A CN111039557B CN 111039557 B CN111039557 B CN 111039557B CN 201911363460 A CN201911363460 A CN 201911363460A CN 111039557 B CN111039557 B CN 111039557B
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B35/00—Transporting of glass products during their manufacture, e.g. hot glass lenses, prisms
- C03B35/14—Transporting hot glass sheets or ribbons, e.g. by heat-resistant conveyor belts or bands
- C03B35/16—Transporting hot glass sheets or ribbons, e.g. by heat-resistant conveyor belts or bands by roller conveyors
- C03B35/163—Drive means, clutches, gearing or drive speed control means
- C03B35/164—Drive means, clutches, gearing or drive speed control means electric or electronicsystems therefor, e.g. for automatic control
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B18/00—Shaping glass in contact with the surface of a liquid
- C03B18/02—Forming sheets
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B25/00—Annealing glass products
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B35/00—Transporting of glass products during their manufacture, e.g. hot glass lenses, prisms
- C03B35/14—Transporting hot glass sheets or ribbons, e.g. by heat-resistant conveyor belts or bands
- C03B35/16—Transporting hot glass sheets or ribbons, e.g. by heat-resistant conveyor belts or bands by roller conveyors
- C03B35/166—Transporting hot glass sheets or ribbons, e.g. by heat-resistant conveyor belts or bands by roller conveyors specially adapted for both flat and bent sheets or ribbons
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
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- Materials Engineering (AREA)
- Organic Chemistry (AREA)
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- Tunnel Furnaces (AREA)
- Re-Forming, After-Treatment, Cutting And Transporting Of Glass Products (AREA)
- Control Of Conveyors (AREA)
Abstract
The invention provides a transmission system for conveying a processed product from a first station to a second station, wherein the transmission system comprises a first transmission subsystem arranged at the first station and a second transmission subsystem arranged at the second station; the first transmission subsystem comprises a first controller, a first conveying device for conveying processed products and a first driving source for driving the first conveying device to operate, and the first driving source is in communication connection with the first controller; the second transmission subsystem comprises a second controller, a second conveying device for conveying processed products, a second driving source for driving the second conveying device to operate, and a detection sensor for acquiring the actual conveying speed S of the second conveying device, wherein the second driving source is in communication connection with the second controller; the second controller and the detection sensor are both in communication connection with the first controller. The transmission stability of the whole transmission system can be guaranteed, and the production quality of the final product can be guaranteed.
Description
Technical Field
The invention relates to the technical field of float glass production, in particular to a transmission system and a control method thereof.
Background
When the float glass is produced, molten glass continuously flows into a tank furnace and floats on the surface of tin liquid with high relative density, under the action of gravity and surface tension, the glass liquid spreads on the tin liquid surface, flat glass belts with flat upper and lower surfaces are formed, after the glass belts are hardened and cooled, the glass belts are led to a transition roller table, and then the glass belts are pulled into an annealing furnace through a transmission system, and the float glass product is obtained after annealing and cutting. Therefore, a transition roller table and an annealing furnace transmission system (hereinafter referred to as a transmission system) are key devices in the float glass production process, and reliable and stable operation of the transmission system is a precondition for guaranteeing the quality of the float glass and even the production stability of the float glass. Especially for the high-end precision float glass production line for producing ultrathin glass, cover plate glass, electronic display glass and the like, the smooth running of a transmission system directly determines the surface smoothness and flatness of a glass raw sheet, and finally influences the yield of float glass products.
At present, the transmission system of the transition roller table is connected with the transmission system of the annealing kiln, and the transmission power of the transmission system of the transition roller table is from the transmission system of the annealing kiln. The transmission system of the transition roller table is roller way transmission, and the transmission system is used for realizing power transmission through a transmission shaft in the transmission system of the annealing kiln, a gear box, a universal coupling, a reduction box and the like and matching with the transmission speed of the transmission system of the annealing kiln. However, the transition roller table is high in temperature and bad in atmosphere, so that the transmission mechanism is often deformed and displaced to generate clamping and blocking phenomena, the transmission is unstable, and the transmission roller of the transition roller table is difficult to change due to the fact that the transmission mechanism is complex. The production of float glass is a continuous process, and the glass ribbon pulled out from the outlet of the tin bath is integrated until the glass ribbon is transversely cut, if a transmission system fails, the glass is scratched, even broken, and the quality of the float glass is reduced, so that the loss caused by a float glass production enterprise is huge.
Disclosure of Invention
In view of the above-described drawbacks of the prior art, it is an object of the present invention to provide a drive system that is capable of improving the operational stability of the transition roll table and annealing lehr drive system.
To achieve the above object, the present invention provides a transmission system for transferring a processed product from a first station to a second station, the transmission system including a first transmission subsystem provided at the first station, and a second transmission subsystem provided at the second station;
the first transmission subsystem comprises a first controller, a first conveying device for conveying processed products and a first driving source for driving the first conveying device to operate, and the first driving source is in communication connection with the first controller;
the second transmission subsystem comprises a second controller, a second conveying device for conveying processed products, a second driving source for driving the second conveying device to operate, and a detection sensor for acquiring the actual conveying speed S of the second conveying device, wherein the second driving source is in communication connection with the second controller;
the second controller and the detection sensor are both in communication connection with the first controller.
Further, the first station is a transition roller table in a float glass production line, the second station is an annealing kiln in the float glass production line, and the processed product is a float glass intermediate product.
Further, the first conveying device is a roller way conveying device and comprises a plurality of first driving rollers which are arranged side by side along the conveying direction of the first conveying device and can rotate, and the first driving source is a first motor for driving the first driving rollers to rotate; the second conveying device is a roller way conveying device and comprises a plurality of second driving rollers which are arranged side by side along the conveying direction of the second conveying device and can rotate, and the second driving source is a second motor for driving the second driving rollers to rotate.
Further, the detection sensor is a speed sensor and is arranged on one second driving roller of the plurality of second driving rollers, and the speed sensor is used for acquiring the roller rotating speed of the second driving roller.
Further, the transmission system also comprises a central control room with a distributed control system, and the first controller and the second controller are both in communication connection with the distributed control system.
The application also provides a control method of the transmission system, which comprises the following steps:
s1, setting ideal conveying speed V 0 ；
S2, the second controller controls the second driving source to be matched with the ideal conveying speed V 0 The second driving source drives the second transmissionThe feeding device operates, and the second controller obtains the actual operating speed V of the second driving source 1 And the actual operating speed V 1 Sending the data to a first controller;
s3, the first controller judges whether communication with the second controller is interrupted or not, and the first controller acquires the actual transmission speed S of the second transmission device fed back by the detection sensor; if yes, the first controller controls the first driving source to operate at an operation speed matched with the actual conveying speed S, and the first driving source drives the first conveying device to operate; if not, executing the following step S4;
s4, the first controller calculates the feedback operation speed V2 of the second driving source according to the actual transmission speed S fed back by the detection sensor, and the first controller judges the actual operation speed V of the second driving source 1 And feedback operating speed V 2 Whether the absolute value of the difference value of the two is smaller than a preset error threshold value e; if yes, executing the following step S5; if not, the first controller controls the first driving source to operate at the actual operating speed V 1 And feedback operating speed V 2 The two of which are larger in value, the first driving source driving the first conveying device to operate;
s5, the first controller controls the first driving source to operate according to the feedback operation speed V 2 And the first driving source drives the first conveying device to operate.
Further, in the step S2, the second controller further sends a detection pulse signal with a set frequency to the first controller; in the step S3, if the first controller determines that the detection pulse signal is received, the first controller determines that the communication with the second controller is not interrupted; if the first controller judges that the detection pulse signal is not received, the first controller judges that the communication with the second controller is interrupted.
As described above, the transmission system and the control method thereof according to the present invention have the following advantageous effects:
in the application, on one hand, the first transmission subsystem in the first station is independent of the second transmission subsystem in the second station, so that the respective transmission of the first transmission subsystem and the second transmission subsystem is more stable and reliable; on the other hand, the first transmission subsystem reads two paths of two-speed signals of the second transmission subsystem through communication connection between the second controller and the first controller and between the detection sensor and the first controller, and judges and selects the two paths of speed signals through a series of control methods, so that the transmission stability of the whole transmission system is ensured, and the production quality of a final product is guaranteed.
Drawings
Fig. 1 is a schematic structural diagram of a transmission system in the present application.
FIG. 2 is a control flow chart of a control method of the transmission system of the present application.
Description of element reference numerals
100. First transmission subsystem
11. First controller
12. First conveying device
121. First driving roller
13. First driving source
131. A main first driving source
132. From a first driving source
14. First motor driver
200. Second transmission subsystem
21. Second controller
22. Second conveying device
221. Second driving roller
23. A second driving source
231. A main second driving source
232. From a second driving source
24. Detection sensor
25. Second motor driver
300. Distributed control system
Detailed Description
Further advantages and effects of the present invention will become apparent to those skilled in the art from the disclosure of the present invention, which is described by the following specific examples.
It should be understood that the structures, proportions, sizes, etc. shown in the drawings are for illustration purposes only and should not be construed as limiting the invention to the extent that it can be practiced, since modifications, changes in the proportions, or adjustments of the sizes, which are otherwise, used in the practice of the invention, are included in the spirit and scope of the invention which is otherwise, without departing from the spirit or scope thereof. Also, the terms such as "upper," "lower," "left," "right," "middle," and "a" and the like are used herein for descriptive purposes only and not for purposes of limitation, and are intended to limit the scope of the invention as defined by the claims and the relative terms thereof as construed as corresponding to the claims.
The present application provides a drive system for transferring a work product from a first station to a second station. In the following embodiments, the transmission system is used in the field of float glass production, the first station is a transition roller table in a float glass production line, the second station is an annealing kiln in the float glass production line, and the processed product is a float glass intermediate product, so the transmission system is a transmission system of the transition roller table and the annealing kiln for the float glass production process.
As shown in fig. 1, the transmission system of the transition roller table and the annealing kiln for the float glass production process in the application comprises a first transmission subsystem 100 arranged at the transition roller table and a second transmission subsystem 200 arranged at the annealing kiln, wherein the first transmission subsystem 100 is the transmission subsystem of the transition roller table, and the second transmission subsystem 200 is the transmission subsystem of the annealing kiln. Further, the first transmission subsystem 100 includes a first controller 11, a first conveying device 12 for conveying the processed product, and a first driving source 13 for driving the first conveying device 12 to operate, the first driving source 13 is communicatively connected to the first controller 11, and the first controller 11 monitors the state of the first driving source 13 and controls the operation speed thereof. The second transmission subsystem 200 includes a second controller 21, a second conveying device 22 for conveying the processed product, a second driving source 23 for driving the second conveying device 22 to operate, and a detection sensor 24 for acquiring an actual conveying speed S of the second conveying device 22, the second driving source 23 being communicatively connected to the second controller 21, the second controller 21 monitoring a state of the second driving source 23 and controlling an operating speed thereof. In particular, the second controller 21 and the detection sensor 24 are also both communicatively connected to the first controller 11.
The application also provides a control method of the transmission system, as shown in fig. 2, which sequentially comprises the following steps:
step S1, setting an ideal conveying speed V 0 。
Step S2, the second controller 21 controls the second driving source 23 to match the ideal conveying speed V 0 The second driving source 23 drives the second conveying device 22 to operate; at the same time, the second controller 21 acquires the actual operating speed V of the second drive source 23 1 And the actual operating speed V 1 To the first controller 11; after the second conveyor 22 is operated, the detection sensor 24 detects the actual conveying speed S of the second conveyor 22 and feeds back the actual conveying speed S to the first controller 11.
In step S3, the first controller 11 determines whether the communication with the second controller 21 is interrupted, and the first controller 11 acquires the actual conveying speed S of the second conveying device 22 fed back by the detection sensor 24. If the first controller 11 determines that communication with the second controller 21 is interrupted, the first controller 11 controls the first driving source 13 to operate at an operation speed corresponding to the actual conveyance speed S, and the first driving source 13 drives the first conveyance device 12 to operate. If the first controller 11 determines that there is no interruption in communication with the second controller 21, the following step S4 is performed. Therefore, in the present step S3, even if the first controller 11 judges that the communication with the second controller 21 is interrupted, the first conveyor 12 is operated to ensure that the float glass intermediate product is conveyed from the transition roller table to the annealing lehr, thereby avoiding erroneous control due to communication failure.
Step S4, the first controller 11 calculates the feedback operation speed V of the second drive source 23 according to the actual transmission speed S fed back by the detection sensor 24 2 The first controller 11 determines the actual operation speed V of the second drive source 23 1 And feedback operating speed V 2 Whether the absolute value of the difference value of the two is smaller than a preset error threshold value e; if yes, executing the following step S5; if not, the first controller 11 controls the first driving source 13 to operate at the actual operating speed V when the failure of the annealing furnace conveying system or the failure of the detection sensor 24 is described 1 And feedback operating speed V 2 The first drive source 13 drives the first transfer device 12 to operate when the value of the first drive source is larger than the value of the second drive source.
Step S5, the first controller 11 controls the first driving source 13 to operate at the feedback operation speed V 2 In operation, the first drive source 13 drives the first conveyor 12 in operation.
Accordingly, the present application relates to a conveyor system capable of conveying float glass intermediate products from a transition roll stand to an annealing lehr. In particular, with respect to the prior art, the transition roll table drive subsystem in the present application is independent of the annealing lehr drive subsystem, namely: the power source of the first conveying device 12 comes from the first driving source 13 instead of the annealing kiln transmission subsystem, and the power sources of the first transmission subsystem 100 and the second transmission subsystem 200 are mutually independent and do not interfere with each other, so that the respective transmission of the first transmission subsystem 100 and the second transmission subsystem 200 is more stable and reliable, the transmission stability of a transition roller table for the float glass production process and the transmission stability of the transmission system of the annealing kiln are further ensured, and the stable production of float glass is greatly facilitated. In addition, through the communication connection between the second controller 21 and the first controller 11 and between the detection sensor 24 and the first controller 11, the transmission speeds of the first transmission subsystem 100 and the second transmission subsystem 200 can be matched, hardware conditions are provided, and the transmission stability of the whole transmission system can be ensured finally under a certain fault condition, so that production accidents such as plate glass scratch and plate breakage caused by system faults are reduced, the stability of float glass production is improved, and the production quality of float glass of a final product is guaranteed.
Further, in step S2, the second controller 21 also transmits a detection pulse signal with a set frequency of 2Hz to the first controller 11, and the detection pulse signal is also a vital signal or a heartbeat signal of the second controller 21; in step S3, if the first controller 11 determines that the detection pulse signal is received, the first controller 11 determines that the communication with the second controller 21 is not interrupted; if the first controller 11 determines that the detection pulse signal is not received, the first controller 11 determines that communication with the second controller 21 is interrupted.
Further, as shown in fig. 1, the transmission system further includes a central control room with a Distributed Control System (DCS) 300, and the first controller 11 and the second controller 21 are both communicatively connected to the distributed control system 300, and the central control room is attended by a person, thereby implementing remote control. Specifically, the operator sends instructions to the central control room via the distributed control system 300, such as setting the desired transfer speed V in step S1 0 The first controller 11 and the second controller 21 are two substations of the distributed control system 300, receive the instruction sent by the distributed control system 300 and feed back to the respective transmission subsystem, so that an operator can remotely monitor the transition roller table and the annealing kiln transmission subsystem, and the timeliness of the fault treatment of the transmission system is improved.
Preferably, the first controller 11 is connected to the distributed control system 300 through a communication line based on Profibus-DP, and the second controller 21 is connected to the distributed control system 300 through a communication line based on Profibus-DP. The first controller 11 and the second controller 21 are both Programmable Logic Controllers (PLCs), and Siemens S7-1500 series are selected, the first controller 11 is provided with an ethernet communication port, an ethernet switch XC206-2, a DP communication card CP 1542-5, and a Siemens counting module 1count 24v/100kHz, and the second controller 21 is provided with an ethernet communication port, an ethernet switch XC206-2, and a DP communication card CP 1542-5. The first controller 11 and the second controller 21 are controlled by a Profine-based controllert, the second controller 21 connects the actual operation speed V of the second driving source 23 1 And a 2Hz detection pulse signal is sent to the first controller 11. The detection sensor 24 is connected with the counting module of the first controller 11 through a communication line based on RS485, so that the first controller 11 can read the actual conveying speed S of the second conveying device 22.
As shown in fig. 1, the first conveyor 12 is a roller conveyor and includes a plurality of first driving rollers 121 that are disposed side by side in a conveying direction of the first conveyor 12 and are rotatable, and the first driving source 13 is a first motor that drives the first driving rollers 121 to rotate. The second conveying device 22 is a roller conveying device, and comprises a plurality of second driving rollers 221 which are arranged side by side along the conveying direction of the second conveying device 22 and can rotate, and the second driving source 23 is a second motor for driving the second driving rollers 221 to rotate. The detecting sensor 24 is a speed sensor, which is mounted on one second driving roller 221 of the plurality of second driving rollers 221, and is used for acquiring the roller rotation speed of the second driving roller 221, and the actual conveying speed S of the second conveying device 22 is characterized by the conveying speed of the second driving roller 221, and the speed sensor is preferably a speed sensor with high precision and 16-bit resolution. Since the first driving source 13 and the second driving source 23 are both motors, the first transmission subsystem 100 further includes a first motor driver 14, and the first motor is communicatively connected to the first controller 11 through the first motor driver 14; the second transmission subsystem 200 further includes a second motor drive 25, the second motor being communicatively coupled to the second controller 21 via the second motor drive 25.
Further, as shown in fig. 1, the first driving source 13 has two first driving sources 131 and 132, respectively, the first driving source 131 and 132 are both motors, and each are connected to the first controller 11 through a motor driver, and the first transmission subsystem 100 further includes a first clutch mechanism, where the first driving source 131 and 132 are both connected to the first transmission device 12 through the first clutch mechanism, and the first clutch mechanism may be a clutch. The first controller 11 determines whether the master first driving source 131 and the slave first driving source 132 are malfunctioning by monitoring the states of the master first driving source 131 and the slave first driving source 132; normally, the main first driving source 131 is put into operation, that is: the first controller 11 controls the main first driving source 131 to operate according to a set rotating speed, the first controller 11 controls the slave first driving source 132 to operate according to a rotating speed lower than that of the main first driving source 131, and the first clutch mechanism is mechanically and automatically followed and automatically in gear engagement transmission with motors with high rotating speeds in the main first driving source 131 and the slave first driving source 132, namely the first clutch mechanism is operated along with the main first driving source 131; when the first controller 11 monitors that the main first driving source 131 is out of order, the first controller 11 accelerates the rotation speed of the first driving source 132 to a set rotation speed, and the first clutch mechanism automatically follows the operation of the slave first driving source 132, thereby realizing undisturbed switching of the main first driving source 131 and the slave first driving source 132.
Similarly, as shown in fig. 1, the second driving source 23 has two second driving sources 231 and 232, respectively, the second driving source 231 and 232 are both motors, and each is connected to the second controller 21 through a motor driver, and the second transmission subsystem 200 further includes a second clutch mechanism, where the second driving source 231 and 232 are both connected to the second conveying device 22 through a second clutch mechanism, and the second clutch mechanism may be a clutch. The second controller 21 determines whether the master second driving source 231 and the slave second driving source 232 are malfunctioning by monitoring the states of the master second driving source 231 and the slave second driving source 232; normally, the main second drive source 231 is put into operation, that is: the second controller 21 controls the main second driving source 231 to operate according to a set rotating speed, the second controller 21 controls the secondary second driving source 232 to operate according to a rotating speed lower than that of the main second driving source 231, and the second clutch mechanism is mechanically and automatically driven and in gear engagement with a motor with a high rotating speed in the main second driving source 231 and the secondary second driving source 232, namely the second clutch mechanism is driven to operate along with the main second driving source 231; when the second controller 21 monitors that the main second driving source 231 is failed, the second controller 21 accelerates the rotation speed of the second driving source 232 to the set rotation speed, and the second clutch mechanism automatically follows the operation of the slave second driving source 232, thereby realizing undisturbed switching of the main second driving source 231 and the slave second driving source 232.
The first clutch mechanism and the second clutch mechanism can be selected from clutches with the product model of CKF245X160-70 and manufactured by Beijing emerging overrunning clutch limited company.
As shown in fig. 2, in a specific embodiment, the control method of the transmission system having the above-described structure includes the steps of:
step S1, operators such as process engineers set the desired transfer speed V by the distributed control system 300 0 ，V 0 215m/h, distributed control system 300 transmits the desired transmission rate V via a Profibus-DP communication line 0 To the second controller 21.
Step S2, the second controller 21 controls the second driving source 23 to match the ideal conveying speed V 0 And the second drive source 23 in the lehr drive subsystem drives the second conveyor 22 in operation. The second controller 21 acquires the actual operation speed V of the second drive source 23 1 Actual operation speed V 1 Characterised by the actual conveying speed of the second conveying means 22, V 1 = 214.98m/h; the second controller 21 will operate the actual operating speed V 1 And a 2Hz detection pulse signal is sent to the first controller 11 via a Profinet communication line. After the operation of the second conveyor 22, the speed sensor detects the actual conveying speed S of the second conveyor 22 and feeds back the actual conveying speed S to the first controller 11, s= 214.86m/h.
In step S3, the first controller 11 determines whether or not the detection pulse signal transmitted from the second controller 21 is received. If so, it indicates that the first controller 11 determines that the communication with the second controller 21 is not interrupted, and performs step S4 described below. If the first transmission device 12 is not received, the first controller 11 judges that the communication with the second controller 21 is interrupted, the first controller 11 controls the first driving source 13 to operate at the operation speed matched with the actual transmission speed s= 214.86m/h, the first driving source 13 in the transition roller table transmission subsystem drives the first transmission device 12 to operate, and meanwhile, the first controller 11 sends information of communication connection faults between the annealing kiln transmission subsystem and the transition roller table transmission subsystem to the distributed control system 300.
Step S4, the first controller 11 calculates the feedback operation speed V of the second driving source 23 from the actual conveyance speed s= 214.86m/h fed back by the speed sensor 2 The actual conveyance speed S fed back by the speed sensor and the feedback operation speed V of the second drive source 23 in the present embodiment 2 Are characterized by the conveying speed of the second driving roller 221, so that the two are the same in value, s=v 2 = 214.86m/h. The first controller 11 determines the actual operation speed V of the second drive source 23 1 = 214.98m/h and feedback running speed V 2 Absolute value |v of difference between = 214.86m/h 1 -V 2 Whether or not is smaller than an error threshold e, which is a conveying speed error threshold of the second conveying device 22, preset in the first controller 11, e=0.1 m/h. If |V 1 -V 2 And i is smaller than e, which indicates that the annealing furnace conveying system is well operated, and the following step S5 is performed. If |V 1 -V 2 I is equal to or greater than e, indicating a failure of the conveying speed fed back by the second controller 21 in the annealing kiln conveying system or a failure of a speed sensor mounted on the second conveying roller, at this time, the first controller 11 controls the first driving source 13 to operate at the actual operating speed V 1 And feedback operating speed V 2 The value of the two is larger than max (V 1, V 2 ) In operation, the first drive source 13 in the transition roller table drive subsystem drives the first conveyor 12 to operate, and the first controller 11 sends fault information of the second controller 21 in the annealing lehr conveyor system, or fault information of the speed sensor, to the distributed control system 300.
Step S5, the first controller 11 controls the feedback operation speed V of the first driving source 13 according to the feedback of the speed sensor 2 The first driving source 13 in the transition roller table transmission subsystem drives the first conveying device 12 to operate, and jumps to the above step S2 to perform periodic cycle self-test.
In summary, the transmission system of the transition roller table and the annealing kiln for the float glass production process and the control method thereof have the following advantages:
1. the first transmission subsystem 100 for the transmission of the transition roller table is independent of the second transmission subsystem 200 for the transmission of the annealing kiln, and monitoring control of each transmission subsystem is realized. And each transmission subsystem is provided with a master driving source and a slave driving source, and the master driving source and the slave driving source are respectively switched with the roller way conveying device automatically.
2. The first controller 11 in the transition roller table transmission subsystem is in communication connection with the second controller 21 and the speed sensor in the annealing kiln transmission subsystem, so that the transition roller table transmission subsystem can read two paths of and two transmission speed signals of the annealing kiln transmission subsystem, and hardware guarantee is provided for reliable transmission speed matching of the transition roller table transmission subsystem and the annealing kiln transmission subsystem through the redundant connection.
3. The transition roller table transmission subsystem and the annealing kiln transmission subsystem are also in communication connection with the distributed control system 300, so that an operator can remotely monitor the transmission systems of the transition roller table and the annealing kiln, and the timeliness of fault treatment of the transmission systems is improved.
4. The first controller 11 in the transition roller table transmission subsystem judges two paths of transmission speed signals fed back by the second controller 21 and the speed sensor in the annealing kiln transmission subsystem, so that the transition roller table transmission subsystem reliably follows the annealing kiln transmission subsystem to operate, the speed loss of the two transmission systems caused by accident states such as speed sensor faults, communication faults, line faults and the like is avoided, production accidents such as scratch and broken plates caused by the transmission system faults are reduced, the accuracy and the reliability of the transmission system in the float glass production process are finally improved, and remarkable economic benefits are obtained.
In summary, the present invention effectively overcomes the disadvantages of the prior art and has high industrial utility value.
The above embodiments are merely illustrative of the principles of the present invention and its effectiveness, and are not intended to limit the invention. Modifications and variations may be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the invention. Accordingly, it is intended that all equivalent modifications and variations of the invention be covered by the claims, which are within the ordinary skill of the art, be within the spirit and scope of the present disclosure.
Claims (6)
1. A method of controlling a drive train for transferring a work product from a first station to a second station, characterized by: the transmission system comprises a first transmission subsystem (100) arranged at a first station and a second transmission subsystem (200) arranged at a second station;
the first transmission subsystem (100) comprises a first controller (11), a first conveying device (12) for conveying processed products and a first driving source (13) for driving the first conveying device (12) to operate, wherein the first driving source (13) is in communication connection with the first controller (11);
the second transmission subsystem (200) comprises a second controller (21), a second conveying device (22) for conveying processed products, a second driving source (23) for driving the second conveying device (22) to operate, and a detection sensor (24) for acquiring the actual conveying speed S of the second conveying device (22), wherein the second driving source (23) is in communication connection with the second controller (21);
the second controller (21) and the detection sensor (24) are both in communication connection with the first controller (11);
the control method comprises the following steps:
s1, setting ideal conveying speed V 0 ；
S2, the second controller (21) controls the second driving source (23) to be matched with the ideal conveying speed V 0 The second driving source (23) drives the second conveying device (22) to operate, and the second controller (21) obtains the actual operation speed V of the second driving source (23) 1 And the actual operating speed V 1 To the first controller (11);
s3, the first controller (11) judges whether communication with the second controller (21) is interrupted, and the first controller (11) acquires the actual conveying speed S of the second conveying device (22) fed back by the detection sensor (24); if yes, the first controller (11) controls the first driving source (13) to operate at an operation speed matched with the actual conveying speed S, and the first driving source (13) drives the first conveying device (12) to operate; if not, executing the following step S4;
s4, the first controller (11) calculates the feedback operation speed V of the second driving source (23) according to the actual transmission speed S fed back by the detection sensor (24) 2 The first controller (11) determines the actual operation speed V of the second drive source (23) 1 And feedback operating speed V 2 Whether the absolute value of the difference value of the two is smaller than a preset error threshold value e; if yes, executing the following step S5; if not, the first controller (11) controls the first driving source (13) to operate at the actual operating speed V 1 And feedback operating speed V 2 The two of which are operated with larger values, the first driving source (13) drives the first conveying device (12) to operate;
s5, the first controller (11) controls the first driving source (13) to operate according to the feedback operation speed V 2 And the first driving source (13) drives the first conveying device (12) to operate.
2. A control method of a transmission system according to claim 1, characterized in that: the first station is a transition roller table in a float glass production line, the second station is an annealing kiln in the float glass production line, and the processed product is a float glass intermediate product.
3. A control method of a transmission system according to claim 1, characterized in that: the first conveying device (12) is a roller way conveying device and comprises a plurality of first driving rollers (121) which are arranged side by side along the conveying direction of the first conveying device (12) and can rotate, and the first driving source (13) is a first motor for driving the first driving rollers (121) to rotate; the second conveying device (22) is a roller way conveying device and comprises a plurality of second driving rollers (221) which are arranged side by side along the conveying direction of the second conveying device (22) and can rotate, and the second driving source (23) is a second motor for driving the second driving rollers (221) to rotate.
4. A control method of a transmission system according to claim 3, characterized in that: the detection sensor (24) is a speed sensor and is arranged on one second driving roller (221) in the plurality of second driving rollers (221), and the speed sensor is used for acquiring the roller rotating speed of the second driving roller (221).
5. A control method of a transmission system according to claim 1, characterized in that: the system also comprises a central control room with a distributed control system (300), and the first controller (11) and the second controller (21) are both in communication connection with the distributed control system (300).
6. A control method of a transmission system according to claim 1, characterized in that: in the step S2, the second controller (21) further transmits a detection pulse signal with a set frequency to the first controller (11); in the step S3, if the first controller (11) determines that the detection pulse signal is received, the first controller (11) determines that communication with the second controller (21) is not interrupted; if the first controller (11) judges that the detection pulse signal is not received, the first controller (11) judges that the communication with the second controller (21) is interrupted.
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| CN115259650A (en) * | 2022-07-12 | 2022-11-01 | 河南旭阳光电科技有限公司 | Cover plate glass transition roller structure, and cover plate glass transition roller switching method and system |
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