Sensing device for on-line measurement of glass pull amount

Abstract

The utility model relates to a sensing device for on-line measurement of glass pull quantity, which comprises a speed sensor, a speed measuring roller, a PLC (programmable logic controller) and a display screen, and is characterized in that the outer circumferential surface of the speed measuring roller is used for contacting a glass plate and synchronously moving; the speed measuring roller is connected to one end of the speed sensor and is in signal connection with the speed sensor, and the speed sensor obtains motion data of the speed measuring roller; the speed sensor is in signal connection with the PLC, and the PLC is used for processing detection data of the speed sensor; the PLC is in control connection with the display screen, and the display screen is used for displaying speed sensor detection data processed by the PLC, so that an observer can conveniently obtain actual movement data of the glass plate. The sensing device can obtain the real-time and accurate annealing speed of the glass plate, achieves the effect of accurately measuring and feeding back the drawing amount of the glass plate, feeds back the drawing amount to each process for adaptive adjustment, and can reduce the productivity error of a production line, improve the production quality and reduce the defective product rate and the production cost.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of glass manufacturing in the chemical, metallurgical, specifically relates to a kind of sensor device of on-line measurement glass drawing quantity. BACKGROUND

[0002] Glass drawing quantity refers to the weight or volume of glass liquid drawn from the furnace per unit time in the glass manufacturing process, and also refers to the designed output of glass per day, with unit T / d (ton / day);Drawing quantity is an important indicator to measure the efficiency of glass production, which directly affects the production capacity and cost of production line.When the drawing quantity is high, the load of the front area needs to be increased, and the load of the rear area needs to be reduced to maintain the temperature stability, which may cause the change of flow channel temperature and working part temperature, and the dilution air volume and heat load need to be adjusted in time;When the drawing quantity is low, the load of the front area is reduced, and the load of the rear area is increased, which may cause the change of material pile and bubble boundary position, and the oil volume, heat load and electric power need to be adjusted in time to maintain the stability of material pile and bubble boundary.

[0003] Due to the continuity of the glass manufacturing process with many processes, the accuracy of the actual measurement of the drawing quantity is related to the adjustment of the process parameters to match the appropriate process time, the adjustment of the parameters transmitted between processes to match the appropriate process time, so that the entire manufacturing process is adapted to the designed drawing quantity as much as possible.

[0004] In the traditional glass production process with annealing process, the drawing quantity of glass plate is usually calculated by the conveying speed of the subsequent annealing. The annealing speed is usually adjusted in the forming section, and the adjusted annealing speed is transmitted to the display device at the cold end through the sensing device, so that the cold end personnel can calculate or the off-line device for measuring the drawing quantity at the cold end can calculate the drawing quantity, so as to achieve the purpose of controlling the yield and adjusting the process.

[0005] However, there is an error between the actual annealing speed and the adjusted annealing speed. Most of the annealing furnaces for producing glass will have the phenomenon that the actual speed deviates from the adjusted and set speed after being used for a certain period of time;If the actual annealing speed is faster, the speed measuring device and glass plate commonly used at the cold end will respectively appear the phenomenon of slipping on the glass plate (the former) and annealing roller (the annealing roller is usually made of ceramic, and the surface friction coefficient μ is small);Compared with slower, it may appear material piling;Affect the actual drawing quantity, cause actual production capacity error, also affect manufacturing quality.

[0006] The prior art such as CN106707957A discloses a method for improving the quality of the lower surface of ultra-thin glass, speed sensors and torque sensors are arranged on the transition rollers for conveying, the rotating speed of the transition rollers is controlled by combining with PLC, so that the torque of each transition roller is kept consistent, thereby improving the quality of the lower surface of the glass, but the drawing amount cannot be fed back, and the use structure needs to be further optimized and the application needs to be improved. SUMMARY

[0007] In view of the above problems of the prior art, the technical problem to be solved by the utility model is to provide a sensing device for measuring the glass drawing amount on line, to avoid the problem that the measurement feedback of the drawing amount of the glass production line with annealing process is not accurate enough, to improve the actual measurement accuracy of the drawing amount, to reduce the production line capacity error, and to improve the production quality.

[0008] To solve the above technical problems, the utility model adopts the following technical scheme:

[0009] A sensing device for measuring the glass drawing amount on line, comprising a speed sensor, a speed measuring roller, a PLC controller and a display screen, wherein,

[0010] The outer circumferential surface of the speed measuring roller is used for contacting the glass plate and moving synchronously;

[0011] The speed measuring roller is connected to one end of the speed sensor and is connected in signal with the speed sensor, and the speed sensor detects and obtains the motion data of the speed measuring roller;

[0012] The speed sensor is connected in signal with the PLC controller, and the PLC controller is used for processing the detection data of the speed sensor;

[0013] The PLC controller is connected with the display screen, and the display screen is used for displaying the detection data of the speed sensor processed by the PLC controller, so that the observer can obtain the actual motion data of the glass plate.

[0014] Further improve the above technical scheme, the speed measuring roller is rotatably connected to one end of the speed sensor, and the axial direction is perpendicular to the motion direction of the glass plate.

[0015] Further, a plurality of suction cups are arranged on the outer circumferential surface of the speed measuring roller in a circumferential interval, and the glass plate is contacted by the suction cups.

[0016] Further, the plurality of suction cups are equally distributed on the outer circumferential surface of the speed measuring roller.

[0017] Optionally, the outer diameter of the speed measuring roller is 5-10 cm, the diameter of the suction cup mouth is 0.5-1 cm, and the number of the equally distributed suction cups is 5-10 per circle.

[0018] Optionally, the equally distributed suction cups on the same cross section are a group, and the outer circumferential surface of the speed measuring roller is provided with two groups of suction cups, and the two groups of suction cups are arranged at intervals in the axial direction of the speed measuring roller.

[0019] The outer circle diameter of the speed measuring roller is 5-10 cm, the diameter of the suction cup port is 1-2 cm, and the number of the equally distributed suction cups is 5-10 per circle.

[0020] Optionally, the equally distributed suction cups on the same cross section are a group, and the outer circumferential surface of the speed measuring roller is provided with multiple groups of suction cups, and the multiple groups of suction cups are arranged at intervals in the axial direction of the speed measuring roller.

[0021] Optionally, the outer circumferential surface of the speed measuring roller is provided with three groups of suction cups, the outer circle diameter of the speed measuring roller is 10-15 cm, the diameter of the suction cup port is 2-5 cm, and the number of each group of suction cups is 7-17 per circle.

[0022] Further, the speed measuring roller adopts a ball bearing, the inner steel ring of which is connected to one end of the speed sensor, and the suction cup is arranged outside the outer steel ring.

[0023] Further, the display screen adopts an HMI display screen.

[0024] Compared with the prior art, the present application has the following beneficial effects:

[0025] 1. The sensor device for online measurement of glass drawing amount of the present application, when in use, the speed measuring roller contacts the glass plate, the glass plate moves horizontally in the annealing conveying process, the speed measuring roller contacts the glass plate and rotates synchronously under the driving of the glass plate, the speed measuring roller transmits a signal after rotation to the speed sensor, the speed sensor transmits the movement data of the speed measuring roller to the PLC controller after collection, the PLC controller converts and calculates the detection data of the speed sensor according to preset parameters, the actual movement data of the glass plate is processed into drawing amount information, and the directly needed information is transmitted to the display screen for display. In this way, the real-time and accurate annealing speed of the glass plate can be obtained, the effect of accurately measuring and feeding back the size of the glass plate drawing amount is achieved, the production line capacity error can be reduced, the production quality can be improved, and the product defective rate and production cost can be reduced.

[0026] 2. The sensor device for online measurement of glass drawing amount of the present application, the speed measuring roller adopts a ball bearing and is combined with a suction cup structure on the outside, the speed measuring roller can be more effectively driven to rotate when moving with the glass plate, the relative slippage with the glass plate is avoided, the synchronous movement effect is good, and the detection accuracy is effectively improved.

[0027] 3. The sensor device for online measurement of glass drawing amount of the present application, which is simple in structure, safe and effective in operation and measurement process, can effectively control the investment cost of production equipment, ensures production safety, and improves the yield. BRIEF DESCRIPTION OF DRAWINGS

[0028] Figure 1 A schematic view of a sensing device for measuring the glass drawing amount on line according to an embodiment;

[0029] Figure 2 A schematic view of the use effect of a sensing device for measuring the glass drawing amount on line according to an embodiment;

[0030] Figure 3 A schematic view of the structure of the speed measuring roller part according to an embodiment;

[0031] Figure 4 A schematic view of the effect comparison of a comparative example according to an embodiment;

[0032] Wherein, the PLC controller 1, the speed measuring roller 2, the suction cup 21, the speed sensor 3, the display screen 4, the glass plate 5, and the roller 6 of the annealing furnace. DETAILED DESCRIPTION

[0033] The specific embodiments of the utility model will be further described in detail below with reference to the drawings.

[0034] Please refer to Figure 1 , a sensing device for measuring the glass drawing amount on line according to an embodiment, comprising a speed sensor 3, a speed measuring roller 2, a PLC controller 1 and a display screen 4, wherein:

[0035] The speed measuring roller 2 is used to contact the glass plate 5 and move synchronously, and specifically, the outer circumferential surface of the speed measuring roller 2 is used to contact the glass plate, and the horizontally moving glass plate drives the speed measuring roller 2 to rotate synchronously;

[0036] The speed measuring roller 2 is connected to one end of the speed sensor 3 and is signal connected with the speed sensor 3, and the speed sensor 3 obtains the motion data of the speed measuring roller 2, so that the speed sensor 3 obtains the motion data of the glass plate through the motion detection of the speed measuring roller 2;

[0037] The speed sensor 3 is signal connected with the PLC controller 1, and the PLC controller 1 is used to process the detection data of the speed sensor;

[0038] The PLC controller 1 is connected with the display screen 4, and the display screen 4 is used to display the detection data of the speed sensor processed by the PLC controller 1, so that the observer obtains the actual motion data of the glass plate.

[0039] Please refer to Figure 2The sensor device for online measuring the glass drawing amount of the embodiment, in use, the speed measuring roller 2 is in contact with the glass plate 5, in the annealing conveying process, the glass plate 5 moves horizontally under the conveying of the roller 6 of the annealing kiln, the speed measuring roller 2 is in contact with the glass plate 5, rotates synchronously under the driving of the glass plate 5, the speed measuring roller 2 transmits a signal to the speed sensor 3 after rotating, the speed sensor 3 collects the motion data of the speed measuring roller 2 and transmits to the PLC controller 1, the PLC controller 1 converts and calculates the detection data of the speed sensor 3 according to the preset parameters, can process the actual moving data of the glass plate 5 into the drawing amount information, and transmits the directly needed information to the display screen 4 for display, the number and specific placement position of the display screen 4 are not limited, and it is suitable for personnel to conveniently observe in combination with the drawing amount adjustment of the corresponding process parameters. In this way, the real-time and accurate annealing speed of the glass plate 5 can be obtained, the effect of accurately measuring and feeding back the drawing amount of the glass plate 5 is achieved, the adaptability adjustment of each process can be realized, the production line capacity error can be reduced, the production quality can be improved, and the product defective rate and production cost can be reduced.

[0040] Please continue to see Figure 1 The speed measuring roller 2 is rotatably connected to one end of the speed sensor 3, and the axial direction is perpendicular to the motion direction of the glass plate 5, so that sufficient contact of the contact surface can be ensured, and the contact force is beneficial to the conversion of the horizontal movement of the glass plate into the synchronous rotation of the speed measuring roller 2, thereby ensuring the detection accuracy.

[0041] Please see Figure 3 As an optimization, a plurality of suction cups 21 can be arranged on the outer circumferential surface of the speed measuring roller 2 in a circumferential interval, and each suction cup 21 is in contact with the glass plate 5. The suction cup 21 is arranged on the outer circumferential surface of the speed measuring roller 2 in a circumferential interval, and each suction cup 21 is in contact with the glass plate 5. When the glass plate moves, the suction cup 21 can be adsorbed on the glass plate, and the speed measuring roller 2 can be driven more effectively to rotate, avoiding slipping relative to the glass plate 5, and the synchronous motion effect is better, and the detection accuracy can be improved.

[0042] During manufacturing, the suction cup 21 can be selected from a PVC suction cup, a silica gel suction cup, a vacuum suction cup and the like.

[0043] The plurality of suction cups 21 are equally distributed on the outer circumferential surface of the speed measuring roller 2, so that the time interval and distance interval of synchronous driving are consistent, which is beneficial to ensuring the synchronous motion and further improving the detection accuracy.

[0044] The suction cups 21 equally distributed on the same cross section are defined as a group, a plurality of groups of suction cups 21 can be arranged on the outer circumferential surface of the speed measuring roller 2, and the plurality of groups of suction cups 21 are arranged in an interval in the axial direction of the speed measuring roller 2. In this way, it can be suitable for the working condition with large drawing amount, and the detection accuracy can be ensured.

[0045] During implementation, in order to ensure the detection accuracy and the applicability of the device, the corresponding process parameters can be assigned according to the actual working condition of the drawing amount.

[0046] For the condition that the drawing amount is 5t / d or less, the following can be selected:

[0047] One set of suction cups is arranged on the outer circle of the speed measuring roller, the outer circle diameter of the speed measuring roller is 5-10cm, the diameter of the suction cup port is 0.5-1cm, and the number of the equally distributed suction cups is 5-10 in a circle.

[0048] For the condition that the drawing amount is 5-50t / d, the following can be selected:

[0049] Two sets of suction cups are arranged on the outer circle of the speed measuring roller, the outer circle diameter of the speed measuring roller is 5-10cm, the diameter of the suction cup port is 1-2cm, and the number of the equally distributed suction cups is 5-10 in a circle.

[0050] For the condition that the drawing amount is 50t / d or more, the following can be selected:

[0051] Three sets of suction cups are arranged on the outer circle of the speed measuring roller, the outer circle diameter of the speed measuring roller is 10-15cm, the diameter of the suction cup port is 2-5cm, and the number of the suction cups in each set is 7-17 in a circle.

[0052] In manufacturing, the speed measuring roller 2 adopts a ball bearing, the inner steel ring of which is connected to one end of the speed sensor 3, and the suction cup 21 is arranged outside the outer steel ring. The ball bearing is mature and reliable, has small friction, and reduces the influence on the glass plate 5 conveyed by the production line, and has high synchronism.

[0053] In implementation, the other end of the speed sensor 3 can be rotationally connected to the shelf plate (not shown in the figure) of the annealing furnace, and the whole is inclined towards the incoming direction of the glass plate 5, so that the speed measuring roller 2 is placed on the glass plate 5, and the synchronism is better. The display screen 4 preferably adopts an HMI display screen, so that the interaction and information exchange between the device and the user are smoother through the human-machine interface (also known as the user interface or user interface). The speed sensor 3 can be a magneto-electric speed sensor (preferred), a Hall speed sensor, an optical speed sensor, etc.

[0054] Please refer to Figure 4 , the comparative example:

[0055] In combination with the actual standard daily output of 5t / d, the error conditions before and after improvement are compared. First, the conventional method introduced in the background art is used to measure the drawing amount by setting the speed according to the conveying parameters of the annealing equipment, and the error conditions are as follows:

[0056]

[0057] The on-line measuring glass drawing amount sensing device of the embodiment is used to measure the drawing amount, and the error conditions are as follows:

[0058]

[0059] It can be seen that the improved device can provide more accurate measurement feedback of the pulling amount, reduce the production line capacity error, and improve the production quality.

[0060] Finally, it should be pointed out that the above embodiments are only used to illustrate the technical solutions of the present application and are not limiting. Although the present application has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present application can be modified or replaced equivalently without departing from the purpose and scope of the present application. The technical solutions should be covered in the scope of the claims of the present application.

Claims

1. A sensing device for measuring the draw of glass on-line, characterized by: The speed sensor, the speed measuring roller, the PLC controller and the display screen are included, wherein, The outer circumferential surface of the speed measuring roller is used to contact the glass plate and move synchronously; The speed measuring roller is connected to one end of the speed sensor and connected with the speed sensor signal, and the speed sensor acquires the motion data of the speed measuring roller; The speed sensor signal is connected with the PLC controller, and the PLC controller is used to process the detection data of the speed sensor; The PLC controller is connected with the display screen, and the display screen is used to display the detection data of the speed sensor processed by the PLC controller, so that the observer can obtain the actual motion data of the glass plate.

2. The apparatus of claim 1, wherein: The speed measuring roller is rotationally connected to one end of the speed sensor, and the axial direction is perpendicular to the motion direction of the glass plate.

3. The apparatus of claim 2, wherein: The outer circumferential surface of the speed measuring roller is provided with a plurality of suction cups arranged in a circumferential direction, and the glass plate is contacted through the suction cups.

4. The apparatus of claim 3, wherein: The plurality of suction cups are equally distributed on the outer circumferential surface of the speed measuring roller.

5. The apparatus of claim 4, wherein: The outer diameter of the speed measuring roller is 5-10 cm, the diameter of the suction cup port is 0.5-1 cm, and the number of equally distributed suction cups is 5-10 per circle.

6. The apparatus of claim 4, wherein: The plurality of suction cups are equally distributed on the same cross section, and the outer circumferential surface of the speed measuring roller is provided with two groups of suction cups, and the two groups of suction cups are arranged in the axial direction of the speed measuring roller. The outer diameter of the speed measuring roller is 5-10 cm, the diameter of the suction cup port is 1-2 cm, and the number of equally distributed suction cups is 5-10 per circle.

7. The apparatus of claim 4, wherein: the glass draw measurement sensor is an optical sensor. The plurality of suction cups are equally distributed on the same cross section, and the outer circumferential surface of the speed measuring roller is provided with a plurality of groups of suction cups, and the plurality of groups of suction cups are arranged in the axial direction of the speed measuring roller.

8. The apparatus of claim 7, wherein: The outer circumferential surface of the speed measuring roller is provided with three groups of suction cups, the outer diameter of the speed measuring roller is 10-15 cm, the diameter of the suction cup port is 2-5 cm, and the number of each group of suction cups is 7-17 per circle.

9. The sensor device for measuring the glass draw in-line according to any one of claims 3-8, wherein: The speed measuring roller adopts a ball bearing, the inner steel ring of which is connected to one end of the speed sensor, and the suction cups are arranged outside the outer steel ring.

10. The sensor device for measuring the glass draw in real time according to any one of claims 1-8, wherein: The display screen adopts an HMI display screen.

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