Glass on-line thickness measuring device

Abstract

The utility model relates to on-line thickness measuring equipment for glass, which is characterized in that a cutting bridge is arranged between a hot-end process equipment group and a cold-end process equipment group and comprises a bridge body, a linear driving mechanism, a cutting knife fixedly mounted at a power output end of the linear driving mechanism and a thickness measuring sensor electrically connected with an electric control cabinet; the linear driving mechanism is used for driving the cutting knife to move along the width direction of the glass tape so as to cut the glass tape; the thickness measuring sensor is configured to synchronously move along with the cutting knife and measure the thickness of the glass tape at the cutting position of the cutting knife in real time; and the electric control cabinet receives glass thickness data acquired by the thickness measurement sensor and feeds back the thickness data to the hot-end process equipment group and the cold-end process equipment group. According to the on-line thickness measuring equipment for the glass, the thickness measuring sensor is integrated on the cutting bridge and can move along with the cutting knife, so that the on-line real-time measurement of the thickness of the glass is realized, and the production efficiency and the product quality of the glass are remarkably improved.

Description

Technical Field

[0001] The utility model relates to the technical field of float glass production lines, in particular to an on-line glass thickness measuring device. Background Technique

[0002] In the prior art, as an important building material and industrial raw material, glass plays an irreplaceable role in modern society. With the progress of science and technology and the improvement of people's living standards, the quality requirements for glass are getting higher and higher, especially for the thickness uniformity of glass. The glass thickness directly affects key indicators such as the strength, light transmittance, and heat insulation performance of the glass. Therefore, thickness control in the glass production process is crucial.

[0003] However, the current glass thickness detection methods mainly rely on manual sampling inspection and use tools such as micrometers for measurement. There are many limitations in this traditional detection method and it is difficult to meet the requirements of modern large-scale production: First, the speed of manual measurement is slow and cannot keep up with the rhythm of high-speed production lines. Especially in high-speed continuous production processes such as float glass production lines, the efficiency of manual sampling inspection is even more inadequate; Second, manual sampling inspection can only obtain discrete thickness data. Just like seeing a leopard through a tube, it is impossible to comprehensively and real-time monitor the thickness change trend of the entire glass ribbon. This makes it difficult to adjust the process parameters in a timely and accurate manner during the production process, thus easily causing product thickness fluctuations and affecting the quality stability of the final product; Third, due to the lack of real-time thickness data, it is also impossible to automatically classify and stack the glass according to the thickness. This undoubtedly increases the complexity and difficulty of subsequent processing links and also reduces the overall production efficiency. Content of the Utility Model

[0004] In order to solve the above problems, the utility model provides an on-line glass thickness measuring device that can real-time monitor the dynamic trend of glass thickness changes and provide continuous and reliable reference basis for adjusting the production process parameters at the hot and cold ends.

[0005] To achieve the above object, the online glass thickness measuring device designed by the present utility model includes a glass production line, which comprises a hot-end process equipment group for producing a glass ribbon, a cold-end process equipment group for stacking the cut glass ribbon, and an electric control cabinet for adjusting the process parameters of the hot-end process equipment group and the cold-end process equipment group. A cutting bridge is arranged between the hot-end process equipment group and the cold-end process equipment group. The cutting bridge includes a bridge body, a linear driving mechanism, a cutting knife fixedly installed at the power output end of the linear driving mechanism, and a thickness measuring sensor electrically connected to the electric control cabinet. The linear driving mechanism is used to drive the cutting knife to move along the width direction of the glass ribbon to cut the glass ribbon. The thickness measuring sensor is configured to move synchronously with the cutting knife and measure the thickness of the glass ribbon at the cutting position of the cutting knife in real time. The electric control cabinet receives the glass thickness data collected by the thickness measuring sensor and feeds back the thickness data to the hot-end process equipment group and the cold-end process equipment group.

[0006] Further, the thickness measuring sensor is a spectral confocal sensor.

[0007] Further, the linear driving mechanism includes a first base and a second base fixed at both ends of the bridge body, a servo motor, a belt, and a tool holder. The servo motor is installed on the first base. A driving pulley engaged with the power output shaft of the servo motor is arranged on the first base. A driven pulley is rotatably installed on the second base. The driving pulley and the driven pulley are engaged by the belt. The tool holder is detachably installed on the belt, and the cutting knife is detachably installed on the tool holder.

[0008] Further, a first protective cover covering the driving pulley is detachably installed on the first base; a second protective cover covering the driven pulley is detachably installed on the second base.

[0009] Further, it further includes a first guide rail and a second guide rail arranged along the cutting direction of the cutting knife. The first guide rail is fixedly installed on the top surface of the bridge body, and the second guide rail is fixedly installed on the side surface of the bridge body. First sliders slidably engaged with the first guide rail and second sliders slidably engaged with the second guide rail are arranged on the tool holder.

[0010] Further, the first slider is provided with a first limiting groove arranged along the cutting direction of the cutting knife and two first rollers located on both sides of the first limiting groove. At least a part of the first guide rail is placed in the first limiting groove, and the rolling surface of the first roller is in contact with the rail surface of the first guide rail; the second slider is provided with a second limiting groove arranged along the cutting direction of the cutting knife and two second rollers located on both sides of the second limiting groove. At least a part of the second guide rail is placed in the second limiting groove, and the rolling surface of the second roller is in contact with the rail surface of the second guide rail.

[0011] Further, a third roller is rotatably arranged at the bottom of the second limiting groove, and the rolling surface of the third roller is in contact with the rail surface of the second guide rail.

[0012] Further, a third limiting groove arranged along the cutting direction of the cutting knife is formed on the surface of the second guide rail opposite to the second roller, and the rolling surfaces of the two second rollers are in contact with the inner wall of the corresponding third limiting groove; and the extension lines of the axes of the two second rollers intersect.

[0013] The on-line glass thickness measuring device designed by the utility model integrates the thickness measuring sensor on the cutting bridge and enables it to move along with the cutting knife, realizing the on-line real-time measurement of the glass thickness, thereby significantly improving the glass production efficiency and product quality. Specifically, the device can monitor the dynamic trend of the glass thickness change in real time, providing a continuous and reliable reference basis for adjusting the hot-end production process parameters, enabling the production line staff to timely discover and correct the thickness deviation, effectively ensuring the thickness uniformity of the glass product, and significantly improving the product quality. In addition, the device can also automatically classify the cut glass according to the thickness data obtained in real time and convey it to the cold end for orderly stacking. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is the planar structure block diagram of the on-line glass thickness measuring device provided by the embodiment of the present application;

[0015] Figure 2 is the schematic diagram of the mechanism of the cutting bridge provided by the embodiment of the present application;

[0016] Figure 3 is Figure 1 the sectional view taken along line A-A in

[0017] Figure 4 is Figure 2 the enlarged schematic view at B in

[0018] Among them: hot-end process equipment group 100, cold-end process equipment group 200, electrical control cabinet 300, cutting bridge 400, bridge body 10, linear drive mechanism 20, first base 21, second base 22, servo motor 23, belt 24, tool holder 25, first protective cover 26, second protective cover 27, cutting knife 30, thickness measurement sensor 40, first guide rail 50, first slider 51, first limiting groove 52, first roller 53, second guide rail 60, second slider 61, second limiting groove 62, second roller 63, third roller 64, third limiting groove 65. Detailed implementation manner

[0019] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0020] As Figures 1 to 4 shown, this embodiment describes a glass on-line thickness measurement device applied to a float glass production line. Its main objective is to achieve on-line real-time monitoring of the change in glass thickness, and dynamically adjust the production process parameters according to the monitoring results, ultimately improving the thickness uniformity and production efficiency of glass products. This device mainly includes a hot-end process equipment group 100 for producing a glass ribbon, a cold-end process equipment group 200 for stacking the cut glass ribbon, and an electrical control cabinet 300 for adjusting the process parameters of the hot-end process equipment group 100 and the cold-end process equipment group 200. Generally speaking, the hot-end process equipment group 100 mentioned in this embodiment mainly includes a melting furnace, a tin bath, edge rollers, an annealing furnace, etc. The melting furnace is used to melt glass raw materials, the tin bath is used to form a glass surface, the edge rollers are used to stretch the glass liquid into a glass ribbon, and the annealing furnace is used to eliminate the internal stress of the glass ribbon. These devices work together to produce a continuous glass ribbon. The cold-end process equipment group 200 mainly includes a stacker, a breaking machine, etc. The stacker is used to stack the cut glass, and the breaking machine is used to break the glass ribbon into the required shape. These devices work together to process and stack the cut glass ribbon. The electrical control cabinet 300 is the control center of the entire glass production line. Its main function is to receive data from various sensors, such as temperature sensors, speed sensors, thickness sensors, etc., and control the operating parameters of the hot-end and cold-end process equipment groups, such as the temperature of the tin bath, the speed of the edge rollers, the cutting speed, the stacking position, etc., according to a preset program or manual instructions, so as to achieve automatic control of the entire production process.

[0021] Specifically, a cutting bridge 400 is provided between the hot-end process equipment group 100 and the cold-end process equipment group 200. The cutting bridge 400 includes a bridge body 10, a linear drive mechanism 20, a cutting knife 30 fixedly installed at the power output end of the linear drive mechanism 20, and a thickness measurement sensor 40 electrically connected to the electrical control cabinet 300. The linear drive mechanism 20 is configured to drive the cutting knife 30 to move along the width direction of the glass ribbon to cut the glass ribbon. The thickness measurement sensor 40 is configured to move synchronously with the cutting knife 30 and measure the thickness of the glass ribbon at the cutting position of the cutting knife 30 in real time. The electrical control cabinet 300 receives the glass thickness data collected by the thickness measurement sensor 40 and feeds back the thickness data to the hot-end process equipment group 100 and the cold-end process equipment group 200.

[0022] With this structural design, the hot-end process equipment group 100 produces a continuous glass ribbon. After the glass ribbon enters the cutting bridge 400, the linear drive mechanism 20 drives the cutting knife 30 to move along the width direction of the glass ribbon for cutting. At the same time, the thickness measurement sensor 40 moves synchronously with the cutting knife 30 to measure the thickness of the glass ribbon at the cutting position in real time and transmits the measurement data to the electrical control cabinet 300. The electrical control cabinet 300 can analyze and process the thickness data, such as calculating the average thickness and thickness deviation of the glass ribbon, and feed back the processing results to the hot-end process equipment group 100 and the cold-end process equipment group 200. According to the feedback information from the electrical control cabinet 300, the production line workers can adjust the production process parameters of the hot-end process equipment group 100, such as the temperature of the tin bath and the speed of the edge roller, to ensure the thickness uniformity of the glass ribbon. Of course, the production line workers can also adjust the production process parameters of the cold-end process equipment group 200, such as stacking glass with different thicknesses in different positions for convenient subsequent processing and use.

[0023] In this embodiment, the thickness measurement sensor 40 is a spectral confocal sensor. On the one hand, the spectral confocal sensor can measure without direct contact with the object to be measured, which avoids problems such as scratches and abrasions that may be caused by contact measurement. On the other hand, the spectral confocal sensor uses the principle of dispersion to focus light of different wavelengths at different distances and has higher measurement accuracy by analyzing the reflected spectrum.

[0024] In some embodiments, as shown in the figure, the linear drive mechanism 20 includes a first base 21 and a second base 22 fixed to both ends of the bridge body 10, a servo motor 23, a belt 24, and a tool holder 25. The servo motor 23 is installed on the first base 21. An active pulley engaged with the power output shaft of the servo motor 23 is provided on the first base 21. A driven pulley is rotatably installed on the second base 22. The active pulley and the driven pulley are engaged through the belt 24. The tool holder 25 is detachably installed on the belt 24, and the cutting tool 30 is detachably installed on the tool holder 25. Through the transmission of the belt 24, the rotational motion of the servo motor 23 can be converted into the linear motion of the cutting tool 30, and a high motion accuracy can be maintained to ensure the cutting accuracy and the smoothness of the cutting surface. In addition, the width of the glass ribbon is generally relatively long. Compared with other types of linear drive mechanisms, such as ball screws, linear motors, etc., the cost of the servo motor plus belt drive is relatively low, which is beneficial to reducing the manufacturing cost of the equipment.

[0025] In some embodiments, as shown in the figure, a first protective cover 26 covering the active pulley is detachably installed on the first base 21; a second protective cover 27 covering the driven pulley is detachably installed on the second base 22. There are usually a large amount of dust and debris in the glass production environment, and these pollutants may enter between the pulley and the belt 24. The protective covers (26, 27) can effectively block the dust and debris from entering the belt drive system, keep the drive system clean, and extend its service life.

[0026] In some embodiments, as shown in the figure, a first guide rail 50 and a second guide rail 60 are further included and arranged along the cutting direction of the cutting tool 30. The first guide rail 50 is fixedly installed on the top surface of the bridge body 10, and the second guide rail 60 is fixedly installed on the side surface of the bridge body 10. A first slider 51 slidably engaged with the first guide rail 50 and a second slider 61 slidably engaged with the second guide rail 60 are provided on the tool holder 25. In this way, the added first guide rail 50 and second guide rail 60, as well as the first slider 51 and second slider 61 cooperating therewith, form a double-guide rail structure, which can provide a more accurate and stable linear motion trajectory for the cutting tool 30, that is, can effectively restrict the motion direction of the cutting tool 30, reduce shaking and deviation, and thus improve the cutting accuracy and stability.

[0027] In some embodiments, as shown in the figure, the first slider 51 is provided with a first limiting groove 52 arranged along the cutting direction of the cutting tool 30 and two first rollers 53 located on both sides of the first limiting groove 52. At least a part of the first guide rail 50 is placed in the first limiting groove 52, and the wheel surface of the first roller 53 is in contact with the rail surface of the first guide rail 50. The second slider 61 is provided with a second limiting groove 62 arranged along the cutting direction of the cutting tool 30 and two second rollers 63 located on both sides of the second limiting groove 62. At least a part of the second guide rail 60 is placed in the second limiting groove 62, and the wheel surface of the second roller 63 is in contact with the rail surface of the second guide rail 60.

[0028] Specifically, the first limiting groove 52 and the second limiting groove 62 corresponding thereto are respectively provided on the first slider 51 and the second slider 61. These limiting grooves are arranged along the cutting direction of the cutting tool 30, and their function is to limit the movement range of the sliders on the guide rails, prevent the sliders from disengaging from the guide rails during high-speed movement or when subjected to large impacts, thereby effectively improving the movement stability of the cutting tool 30. Especially in high-speed continuous production processes such as float glass production lines, this stability is particularly important. In addition, two first rollers 53 and two second rollers 63 are respectively provided on both sides of the limiting grooves (52, 62). The wheel surfaces of these rollers are in contact with the rail surfaces of the corresponding first guide rail 50 and second guide rail 60, which can significantly reduce the frictional resistance when the sliders move on the guide rails, thereby improving the movement accuracy and efficiency of the cutting tool 30, reducing the wear of the sliders and guide rails at the same time, greatly extending their service life, and reducing the maintenance cost of the equipment.

[0029] In some embodiments, as shown in the figure, a third roller 64 is rotatably provided at the bottom of the second limiting groove 62, and the wheel surface of the third roller 64 is in contact with the rail surface of the second guide rail 60. By adding the third roller 64, the number of contact points between the second slider 61 and the second guide rail 60 is increased to three, thereby further increasing the stability.

[0030] In some embodiments, as shown in the figure, a third limiting groove 65 arranged along the cutting direction of the cutting tool 30 is formed on the surface of the second guide rail 60 opposite to the second rollers 63. The wheel surfaces of the two second rollers 63 are in contact with the inner wall of the corresponding third limiting groove 65; and the extension lines of the axes of the two second rollers 63 intersect.

[0031] Specifically, on the surface of the second guide rail 60 opposite to the second roller 63, a third limiting groove 65 is provided along the cutting direction of the cutting tool 30. The wheel surfaces of the two second rollers 63 are respectively in contact with the inner wall of the corresponding third limiting groove 65. At the same time, the extension lines of the axes of the two second rollers 63 are designed to intersect, forming a constraint relationship similar to "clamping". That is, when the cutting tool 30 is moving at high speed or encounters an external impact, the second slider 61 will bear a large lateral force. Without the constraint of the third limiting groove 65 and the second roller 63, the second slider 61 is likely to have a lateral offset or even turn over, resulting in a deviation in the movement trajectory of the cutting tool 30, affecting the cutting accuracy, and even causing equipment damage. However, this linkage constraint structure in this embodiment can effectively prevent this situation: when the second slider 61 is subjected to a lateral force, the two second rollers 63 will tightly "clamp" the second guide rail 60 to effectively disperse and absorb the lateral force, further enhancing the movement stability of the cutting tool 30.

[0032] The on-line glass thickness measuring device provided in this embodiment realizes the on-line real-time measurement of the glass thickness by integrating the thickness measurement sensor on the cutting bridge and enabling it to move along with the cutting tool, thus significantly improving the glass production efficiency and product quality. Specifically, the device can monitor the dynamic trend of the glass thickness change in real time to provide a continuous and reliable reference basis for adjusting the hot-end production process parameters, enabling the production line staff to detect and correct the thickness deviation in time, effectively ensuring the thickness uniformity of the glass product, and significantly improving the product quality. In addition, the device can also automatically classify the cut glass according to the thickness data obtained in real time and convey it to the cold end for orderly stacking.

[0033] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "vertical", "upper", "lower", "horizontal", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0034] In the description of the present utility model, it should also be noted that unless otherwise clearly specified and limited, the terms "set", "installed", "connected", "connected to" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0035] Finally, it should be noted that the above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or perform equivalent replacements for some of the technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. An on-line glass thickness measuring device, comprising a glass production line, the glass production line includes a hot-end process equipment group for producing a glass ribbon, a cold-end process equipment group for stacking the cut glass ribbon, and an electric control cabinet for adjusting the process parameters of the hot-end process equipment group and the cold-end process equipment group, characterized in that, A cutting bridge is provided between the hot-end process equipment group and the cold-end process equipment group. The cutting bridge includes a bridge body, a linear drive mechanism, a cutting knife fixedly installed at the power output end of the linear drive mechanism, and a thickness measurement sensor electrically connected to the electric control cabinet. The linear drive mechanism is configured to drive the cutting knife to move along the width direction of the glass ribbon for cutting the glass ribbon. The thickness measurement sensor is configured to move synchronously with the cutting knife and measure in real time the thickness of the glass ribbon at the cutting position of the cutting knife. The electric control cabinet receives the glass thickness data collected by the thickness measurement sensor and feeds back the thickness data to the hot-end process equipment group and the cold-end process equipment group.

2. The on-line glass thickness measuring device according to claim 1, characterized in that, The thickness measurement sensor is a spectral confocal sensor.

3. The on-line glass thickness measuring device according to claim 1, characterized in that, The linear drive mechanism includes a first base and a second base fixed at both ends of the bridge body, a servo motor, a belt, and a tool holder. The servo motor is installed on the first base. An active pulley engaged with the power output shaft of the servo motor is provided on the first base. A driven pulley is rotatably installed on the second base. The active pulley and the driven pulley are engaged by the belt. The tool holder is detachably installed on the belt, and the cutting knife is detachably installed on the tool holder.

4. The on-line glass thickness measuring device according to claim 3, characterized in that, A first protective cover covering the active pulley is detachably installed on the first base; a second protective cover covering the driven pulley is detachably installed on the second base.

5. The on-line glass thickness measuring device according to claim 3 or 4, characterized in that, It further includes a first guide rail and a second guide rail arranged along the cutting direction of the cutting knife. The first guide rail is fixedly installed on the top surface of the bridge body, and the second guide rail is fixedly installed on the side surface of the bridge body. The tool holder is provided with a first slider slidably engaged with the first guide rail and a second slider slidably engaged with the second guide rail.

6. The on-line glass thickness measuring device according to claim 5, characterized in that, The first slider is provided with a first limiting groove arranged along the cutting direction of the cutting knife and two first rollers located on both sides of the first limiting groove. At least a part of the first guide rail is placed in the first limiting groove, and the wheel surface of the first roller contacts the rail surface of the first guide rail; the second slider is provided with a second limiting groove arranged along the cutting direction of the cutting knife and two second rollers located on both sides of the second limiting groove. At least a part of the second guide rail is placed in the second limiting groove, and the wheel surface of the second roller contacts the rail surface of the second guide rail.

7. The on-line glass thickness measuring device according to claim 6, characterized in that, A third roller is rotatably arranged at the bottom of the second limiting groove, and the wheel surface of the third roller contacts the rail surface of the second guide rail.

8. The on-line glass thickness measuring device according to claim 7, characterized in that, A third limiting groove arranged along the cutting direction of the cutting knife is formed on the surface of the second guide rail opposite to the second roller, and the wheel surfaces of the two second rollers contact the inner wall of the corresponding third limiting groove; and the extension lines of the axes of the two second rollers intersect.

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