An on-line thickness detection device for float glass

Abstract

This utility model relates to the field of float glass production technology, specifically to an online float glass thickness detection device. It includes a conveyor roller, float glass, and a detection assembly. The detection assembly includes a mounting frame, a positioning plate, a sliding plate, a guide rod, a pad, a servo motor, a ball screw, a lead wire seat, and a sensor component. The sensor component includes a connecting plate and a mating component. The mating component includes a spoke-type pressure sensor and a connecting rod. The servo motor drives the sliding plate downwards, causing the spoke-type pressure sensor to move downwards. Finally, the sensor contacts the glass via the connecting rod. At this point, the pressure change detected by the spoke-type pressure sensor achieves thickness detection. The encoder and brake mechanism of the servo motor are used to achieve precise positioning control of the connecting rod and position holding when stopped. Compared to detecting the glass thickness by eye, this device improves detection accuracy within a smaller error range, thus enhancing the accuracy of glass thickness detection.

Description

Technical Field

[0001] This utility model relates to the field of float glass production technology, specifically to an online float glass thickness detection device. Background Technology

[0002] In existing technologies, the inspection of glass thickness and thickness variation is typically conducted at the cold end of the float glass production line, after the formed glass has undergone annealing and cooling. Production personnel periodically measure the glass manually or with instruments, and then notify the control room of the measurement results for thickness adjustments. These methods are not only cumbersome and complex, but also cannot provide continuous, uninterrupted automatic measurement of the entire glass surface over extended periods.

[0003] A search revealed that prior art CN218296989U discloses a testing device for a float glass production line. It includes a conveyor table, with glass placed on its upper surface. A support frame is mounted on the conveyor table, and a first guide sleeve extends through the upper end of the support frame. A first guide post is slidably installed within the first guide sleeve, and a movable shaft is hinged to its lower end. Rollers adapted to the glass are rotatably mounted on the outer wall of the movable shaft on both sides of the first guide post. Connecting rods are hinged to both sides of the movable shaft, with one end of each connecting rod hinged to a second guide post. The second guide post is slidably installed within a second guide sleeve, which extends through the upper surface of the support frame. This invention, through the coordinated action of the first guide sleeve, first guide post, second guide sleeve, and second guide post, enables the device to conveniently and intuitively detect the thickness and flatness of the glass. It can perform long-term, uninterrupted, automatic, continuous measurement of the entire glass surface, and is simple and easy to use.

[0004] However, the above-mentioned device has the following problems in actual processing: when in use, the glass thickness measured by the measuring end needs to be detected by the worker's eyes. Within a small error range, manual judgment cannot achieve accurate judgment, which leads to inconvenience in use and thus affects the accuracy of measurement. Utility Model Content

[0005] The purpose of this invention is to provide an online float glass thickness detection device that can improve the detection accuracy when detecting glass thickness.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows: This utility model provides an online float glass thickness detection device, including a conveying roller, on which float glass is disposed, and also includes a detection component;

[0007] The detection assembly includes a mounting frame, a positioning plate, a sliding plate, a guide rod, a pad, a servo motor, a ball screw, a lead wire seat, and a sensor component. The mounting frame is located on the upper side of the float glass. The positioning plate is detachably connected to the mounting frame and is located on one side of the mounting frame. The sliding plate is located on the front side of the positioning plate. The guide rod is slidably connected to the rear two sides of the sliding plate and its bottom is fixed on the positioning plate. The pad is detachably connected to the top end of the guide rod and the positioning plate. The servo motor has an encoder and a brake mechanism and is installed on the top of the positioning plate. The ball screw is rotatably connected to the positioning plate, and its T-shaped nut is installed on the middle rear side of the sliding plate. The top connecting shaft end of the ball screw is connected to the output shaft of the servo motor through a coupling. The lead wire seat is located on the right front side of the sliding plate, and the sensor component is located on the bottom front side of the sliding plate.

[0008] The sensor component includes a connecting plate and a mating component. The connecting plate is integrally formed with the slide plate and is located at the bottom front side of the slide plate. The mating component is disposed on the connecting plate.

[0009] The mating components include a spoke-type pressure sensor and a connecting rod. The spoke-type pressure sensor is mounted on the connecting plate. The connecting rod is connected to the spoke-type pressure sensor and is located at its bottom.

[0010] T-shaped linear sliding bearings are provided in the cavities where the rear two sides of the sliding plate slide with the guide rod.

[0011] The detection component also includes a rectangular base, which is detachably connected to the mounting bracket and located on top of the mounting bracket, and has a through-cable cavity inside.

[0012] The bottom of the connecting rod has a semi-circular head structure.

[0013] The float glass thickness online detection device further includes a wiring assembly, which includes an insulating tube and a threaded ring. The insulating tube is disposed in the through cavity of the rectangular seat. The threaded ring is threadedly connected to the insulating tube and is symmetrically disposed on both sides of the insulating tube.

[0014] This invention discloses an online float glass thickness detection device. A servo motor drives a sliding plate downwards, causing a spoke-type pressure sensor to descend. Finally, the sensor contacts the glass via a connecting rod. The thickness is detected by the pressure change detected by the spoke-type pressure sensor; if the thickness is below the acceptable level, the pressure value decreases, and if it is above, it increases accordingly. The servo motor's encoder and brake mechanism ensure precise positioning and position holding of the connecting rod when stopped. Compared to visually measuring the glass thickness, this device improves detection accuracy within a smaller margin of error, thus enhancing the precision of glass thickness detection. Attached Figure Description

[0015] This utility model can be further illustrated by the non-limiting embodiments given in the accompanying drawings.

[0016] Figure 1 This is a schematic diagram of the overall structure of the online float glass thickness detection device according to the first embodiment of this utility model.

[0017] Figure 2 This is a schematic diagram of the positioning plate according to the first embodiment of the present invention.

[0018] Figure 3 This is a schematic diagram of the overall structure of the online float glass thickness detection device according to the second embodiment of this utility model.

[0019] Figure 4 This is a schematic diagram of the insulating tube according to the second embodiment of the present invention.

[0020] In the diagram: 101-Conveyor roller, 102-Float glass, 103-Mounting bracket, 104-Positioning plate, 105-Slide plate, 106-Guide rod, 107-Pad plate, 108-Servo motor, 109-Ball screw, 110-Leader seat, 111-Connecting plate, 112-Spoke-type pressure sensor, 113-Connecting rod, 114-Rectangular seat, 201-Insulating tube, 202-Threaded ring. Detailed Implementation

[0021] To enable those skilled in the art to better understand this utility model, the technical solution of this utility model will be further described below in conjunction with the accompanying drawings and embodiments.

[0022] Example 1:

[0023] like Figure 1 and Figure 2 As shown, where Figure 1 This is a schematic diagram of the overall structure of the online float glass thickness detection device. Figure 2This is a schematic diagram of the positioning plate 104. This utility model provides an online float glass thickness detection device: it includes a conveying roller 101, float glass 102, and a detection assembly. The detection assembly includes a mounting frame 103, a positioning plate 104, a sliding plate 105, a guide rod 106, a pad 107, a servo motor 108, a ball screw 109, a lead wire seat 110, and a sensor component. The sensor component includes a connecting plate 111 and a mating component, the mating component including a spoke-type pressure sensor 112 and a connecting rod 113. The aforementioned solution can improve the detection accuracy when detecting glass thickness. It is understood that the aforementioned solution can improve the detection accuracy.

[0024] In this embodiment, float glass 102 is provided on the upper side of the conveying roller 101. The drive support of the conveying roller 101 can directly adopt existing technology, such as the roller table structure in the existing technology CN218455445U, which is conducive to rotation to realize glass conveying. During the test in this application, the glass is in a cooled state, and the test point is in the middle position of the glass to avoid the ends on both sides being tilted up by force during the test.

[0025] The mounting bracket 103 is disposed on the upper side of the float glass 102. The positioning plate 104 is detachably connected to the mounting bracket 103 and is located on one side of the mounting bracket 103. The sliding plate 105 is disposed on the front side of the positioning plate 104. The guide rod 106 is slidably connected to the rear two sides of the sliding plate 105 and its bottom is fixed on the positioning plate 104. The pad 107 is detachably connected to the top end of the guide rod 106 and the positioning plate 104 respectively. The servo motor 108 has an encoder and a brake mechanism and is installed on the top of the positioning plate 104. The ball screw 109 is rotatably connected to the positioning plate 104, and its T... A mating nut is installed on the middle mating part of the rear side of the slide plate 105. The top connecting shaft end of the ball screw 109 is connected to the output shaft of the servo motor 108 via a coupling. The lead wire seat 110 is located on the right front side of the slide plate 105. The sensor component is located at the bottom front side of the slide plate 105. The mounting bracket 103 can be fixed to the top side of the roller table with anchor bolts. Leveling is required during installation. The rear mounting plate of the positioning plate 104 is connected to the mounting bracket 103 via positioning pins and bolts. Sliding holes are provided on the mating parts on both rear sides of the slide plate 105 for sliding engagement with the guide rod 106. The bottom of the guide rod 106 is provided with... The fixed block end is easily secured with bolts, which are arranged from the rear to the front. The pad 107 is secured by bolts arranged from the rear to the front and connected to the flat end of the top of the guide rod 106 by bolts. There are two flat ends. The servo motor 108 is secured with bolts, and its output shaft is connected to the ball screw 109 via a coupling. The servo motor 108 is equipped with an encoder and a brake mechanism for stopping the shaft and position control. Its transmission method with the ball screw 109 is consistent with the Z-axis positioning control of existing CNC machining centers. The working speed of the servo motor 108 should not be too fast and should be set according to the actual pressure value of the glass. To prevent the connecting rod 113 from impacting the glass and causing damage due to excessive speed, the two sides of the ball screw 109 are mounted on detachable bearing seats on the positioning plate 104 via rotating bearings. The T-shaped mating nuts are fixed to the slide plate 105 by bolts. The position data of the servo motor 108 can be displayed on the display panel of the external CNC system. During testing, the system will be positioned to the qualified glass detection point, i.e., the pressure detection value at this point is the reference value of the qualified standard, and a certain error range is allowed within this value range. The bottom of the lead seat 110 is provided with a contact surface, which facilitates its attachment to the connecting plate 111 and then fixed by bolts arranged from bottom to top.

[0026] The connecting plate 111 is integrally formed with the slide plate 105 and is located at the bottom front side of the slide plate 105; the mating component is disposed on the connecting plate 111; the connecting plate 111 is directly integrally formed with the slide plate 105 to form an L-shaped structure, and the mating component is used for detecting the mating.

[0027] The spoke-type pressure sensor 112 is mounted on the connecting plate 111; the connecting rod 113 is connected to the spoke-type pressure sensor 112 and is located at its bottom. The spoke-type pressure sensor 112 is fixed by bolts, and its bottom is connected to the connecting rod 113. The working principle of the spoke-type pressure sensor 112 is to convert external pressure into an electrical signal through the spoke structure. Its core component is an elastomer, usually made of metal or composite material, shaped like the spokes of a wheel, and evenly distributed around the central axle. When an external force is applied to the sensor surface, the spokes undergo a slight deformation. This deformation causes a change in the resistance value of the strain gauge attached to the spokes, which is then converted into a voltage signal output by the circuit. The data is transmitted to the processing equipment for processing and display. When the connecting rod 113 abuts against the glass surface, it will generate an external force for the spoke-type pressure sensor 112 to operate. At the same time, as is well known to those skilled in the art, the spoke-type pressure sensor 112 is an existing product in the prior art. Its working principle and wiring method are commonplace and belong to conventional means or common knowledge. They will not be described in detail here. Those skilled in the art can make any selection according to their needs or convenience.

[0028] Secondly, T-shaped linear sliding bearings are provided in the cavities where the rear two sides of the sliding plate 105 slide with the guide rod 106. This structure facilitates extending the service life of the sliding plate 105, allowing for subsequent replacement of worn guide rods 106 or T-shaped linear sliding bearings.

[0029] Then, the rectangular base 114 is detached from the mounting bracket 103 and located on top of the mounting bracket 103, with a through-cable cavity inside. The rectangular base 114 is fixed by bolts arranged from bottom to top, and the internal cable cavity facilitates the wiring of the servo motor 108.

[0030] Finally, the bottom of the connecting rod 113 has a semi-circular head structure. This structure facilitates the contact between the connecting rod 113 and the glass plate.

[0031] When using this invention to improve the accuracy of glass thickness detection, the servo motor 108 first drives the ball screw 109 to rotate, causing the slide plate 105 to descend to the standard position of the qualified thickness detection point. This allows the spoke-type pressure sensor 112 to descend. Finally, the connecting rod 113 comes into contact with the glass. At this point, the pressure change detected by the spoke-type pressure sensor 112 under external force achieves thickness detection. When the thickness is below the qualified thickness, the pressure detection value will decrease. Since the qualified glass standard position is a unique point, the reaction force of the connecting rod 113 contacting the glass when the thickness is below the qualified thickness will decrease. The force applied will decrease, and the force applied will increase accordingly when the force is higher. The corresponding detection data is transmitted to the display panel of the external CNC system for position data display. At the same time, the spoke-type pressure sensor 112, in conjunction with the display device, can process and display the pressure value. The encoder and brake mechanism of the servo motor 108 are used to achieve precise positioning control of the connecting rod 113 and to maintain its position when stopped, ensuring that the connecting rod 113 is at the accurate detection point when the glass is qualified during detection. Compared with detecting the glass thickness by the worker's eyes at the measuring end, the detection accuracy can be improved within a small error range, thereby improving the detection accuracy when performing glass thickness detection.

[0032] Example 2:

[0033] like Figure 3 and Figure 4 As shown, where Figure 3 This is a schematic diagram of the overall structure of the online float glass thickness detection device. Figure 4 This is a schematic diagram of the structure of the insulating tube 201. Based on the first embodiment, this utility model provides an online float glass thickness detection device, which further includes a wiring assembly, which includes an insulating tube 201 and a threaded ring 202.

[0034] The insulating tube 201 is disposed within the through cavity of the rectangular base 114; the threaded ring 202 is threadedly connected to the insulating tube 201 and symmetrically disposed on both sides of the insulating tube 201. The insulating tube 201 is directly slidably sleeved within the through cavity of the rectangular base 114, and external threaded ends are provided on both sides for the threaded ring 202 to be disposed, and the threaded ring 202 is used to limit the insulating tube 201.

[0035] In this embodiment, the cable protection structure of the servo motor 108 is further enhanced by providing the insulating tube 201 inside the rectangular base 114.

[0036] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. An online float glass thickness detection device, comprising a conveying roller, wherein float glass is disposed on the upper side of the conveying roller, characterized in that: It also includes detection components; The detection assembly includes a mounting frame, a positioning plate, a sliding plate, a guide rod, a pad, a servo motor, a ball screw, a lead wire seat, and a sensor component. The mounting frame is located on the upper side of the float glass. The positioning plate is detachably connected to the mounting frame and is located on one side of the mounting frame. The sliding plate is located on the front side of the positioning plate. The guide rod is slidably connected to the rear two sides of the sliding plate and its bottom is fixed on the positioning plate. The pad is detachably connected to the top end of the guide rod and the positioning plate. The servo motor has an encoder and a brake mechanism and is installed on the top of the positioning plate. The ball screw is rotatably connected to the positioning plate, and its T-shaped nut is installed on the middle rear side of the sliding plate. The top connecting shaft end of the ball screw is connected to the output shaft of the servo motor through a coupling. The lead wire seat is located on the right front side of the sliding plate, and the sensor component is located on the bottom front side of the sliding plate. The sensor component includes a connecting plate and a mating component. The connecting plate is integrally formed with the slide plate and is located at the bottom front side of the slide plate. The mating component is disposed on the connecting plate. The mating components include a spoke-type pressure sensor and a connecting rod. The spoke-type pressure sensor is mounted on the connecting plate. The connecting rod is connected to the spoke-type pressure sensor and is located at its bottom.

2. The online float glass thickness detection device as described in claim 1, characterized in that: T-shaped linear sliding bearings are provided in the cavities where the rear two sides of the sliding plate slide with the guide rod.

3. The online float glass thickness detection device as described in claim 1, characterized in that: The detection component also includes a rectangular base, which is detachably connected to the mounting bracket and located on top of the mounting bracket, and has a through-cable cavity inside.

4. The online float glass thickness detection device as described in claim 1, characterized in that: The bottom of the connecting rod has a semi-circular head structure.

5. The online float glass thickness detection device as described in claim 3, characterized in that: The online float glass thickness detection device also includes a wiring assembly, which includes an insulating tube and a threaded ring; the insulating tube is disposed in the through cavity of the rectangular seat; the threaded ring is threadedly connected to the insulating tube and is symmetrically disposed on both sides of the insulating tube.

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