Glass thickness detection device and method

Abstract

The invention relates to the technical field of glass production equipment, and discloses a glass thickness detection device and method. The glass thickness detection device comprises a first rack; the first end of the conveying platform deck is connected with the first rack through a first pivot in the first direction, and the conveying platform deck can convey glass in the second direction; the thickness detection mechanism is used for detecting the thickness of the glass in the glass conveying process; and the output end of the turnover driving mechanism is connected with the conveying carrying table, the turnover driving mechanism is in communication connection with the thickness detection mechanism, and the turnover driving mechanism can drive the conveying carrying table to turn over downwards around the first pivot when the thickness detection mechanism detects that the glass is unqualified, so that the unqualified glass slides to an unqualified product recovery area. The glass thickness detection device does not need to be additionally provided with an unqualified product conveying channel and a shifting and separating module, and is simple in structure and small in occupied space.

Description

Technical Field

[0001] The present invention relates to the technical field of glass production equipment, and in particular to a glass thickness detection device and method. Background Art

[0002] In the process of substrate / carrier glass production, the thickness of the substrate / carrier glass fluctuates within a certain range. The thickness exceeding this range value is called thickness out-of-tolerance. Glass with thickness out-of-tolerance can be identified as defective products and needs to be removed to ensure that defective products do not flow into the subsequent production line. Traditional glass thickness detection devices usually include a detection and conveying module, a detection module, a qualified product conveying module, a sorting module, and a defective product conveying module. The detection and conveying module is used to carry and convey the glass to be detected. The detection module is used to detect the thickness of the glass. Based on the detection results of the thickness detection mechanism, qualified glass is conveyed onto the qualified product conveying module, and unqualified glass is conveyed onto the defective product conveying module by the sorting module. The above-mentioned glass thickness detection device has a large number of functional modules, a complex structure, and occupies a large space.

[0003] Therefore, there is an urgent need for a glass thickness detection device and method to solve the above technical problems. Summary of the Invention

[0004] The purpose of the present invention is to provide a glass thickness detection device and method, which do not require an additional conveying channel and sorting module for defective products, have a simple structure, and occupy a small space.

[0005] Another purpose of the present invention is to provide a glass thickness detection method.

[0006] The glass thickness detection device includes:

[0007] A first frame;

[0008] A conveying stage, the first end of which is connected to the first frame through a first pivot along a first direction, and the conveying stage can convey glass along a second direction;

[0009] A thickness detection mechanism for detecting the thickness of the glass during the conveying process of the glass;

[0010] A flipping drive mechanism, the output end of which is connected to the conveying stage. The flipping drive mechanism is in communication connection with the thickness detection mechanism and can drive the conveying stage to flip downward around the first pivot when the thickness detection mechanism detects that the glass is unqualified, so that the unqualified glass slides into the defective product recovery area.

[0011] As an optional solution, the flipping drive mechanism includes:

[0012] A base assembly;

[0013] A linear drive source, wherein a drive source body of the linear drive source is pivotally connected to the base assembly, and a drive source output end of the linear drive source is pivotally connected to a second end of the conveying stage. The drive source output end can move linearly relative to the drive source body.

[0014] As an alternative solution, the base assembly includes a fixed seat, a movable seat and a height adjustment assembly. The fixed seat is configured for fixed installation. The movable seat is installed on the fixed seat through the height adjustment assembly so as to be able to move up and down relative to the fixed seat. The drive source body of the linear drive source is pivotally connected to the movable seat.

[0015] As an alternative solution, the thickness detection mechanism includes:

[0016] A laser emission assembly, which is arranged on one side of the glass and can emit incident light rays to the glass at a preset incident angle;

[0017] A first laser receiving assembly and a second laser receiving assembly, both of which are arranged on the other side of the glass and are spaced along a second direction. The first laser receiving assembly and the second laser receiving assembly are both in communication connection with the flipping drive mechanism and are configured to receive refracted light rays passing through the glass.

[0018] As an alternative solution, the laser emission assembly includes a linear laser light source and can emit linear light rays extending along a first direction. The first laser receiving assembly and the second laser receiving assembly can both receive linear refracted light rays extending along the first direction.

[0019] As an alternative solution, the glass thickness detection device further includes a second frame and a support roller. The second frame is independently arranged from the first frame. The support roller extends along the first direction and is rotationally matched with the second frame. The support roller is configured to support the glass and is arranged upstream of the conveying stage. The incident point of the laser emission assembly on the glass is located upstream of the support roller.

[0020] As an alternative solution, the glass thickness detection device further includes:

[0021] A position-in-place detection assembly, which is configured to detect whether a piece of glass reaches a first position. The position-in-place detection assembly is in communication connection with the thickness detection mechanism so that the thickness detection mechanism starts to detect when a piece of glass reaches the first position; and / or

[0022] A reset detection component is configured to detect whether all the glass has completely slipped off the conveying stage after the conveying stage is turned downwards. The reset detection component is communicatively connected to the turning drive mechanism so that the turning drive mechanism drives the conveying stage to turn upwards and reset after all the unqualified glass has slipped off.

[0023] As an optional solution, the conveying stage includes:

[0024] A stage main body, the first end of the stage main body in the second direction is pivotally connected to the first rack through the first pivot, and the second end in the second direction is pivotally connected to the output end of the turning drive mechanism;

[0025] A plurality of driving rollers are arranged at intervals in the second direction. The driving rollers extend in the first direction and are pivotally connected to the stage main body;

[0026] A conveying drive component capable of driving a plurality of the driving rollers to rotate to convey the glass to move in the second direction.

[0027] A glass thickness detection method is executed by using the glass thickness detection device. The glass thickness detection method includes:

[0028] Start to convey the glass to be detected for thickness in the second direction and gradually convey the glass onto the conveying stage;

[0029] During the process of conveying the glass, the thickness detection mechanism detects the thickness of the glass at various positions in the second direction;

[0030] Obtain the detection result of the thickness detection mechanism and judge whether the current glass is qualified;

[0031] If the glass is unqualified, the turning drive mechanism drives the conveying stage to turn downwards around the first pivot so that the unqualified glass slips off the conveying stage; if the glass is qualified, the conveying stage continues to convey the qualified glass in the second direction.

[0032] As an optional solution, the glass thickness detection method further includes:

[0033] After starting to convey the glass, detect whether there is glass moving to the first position in the second direction. If so, the thickness detection mechanism starts to detect the thickness of the glass; and / or

[0034] After the turning drive mechanism drives the conveying stage to turn downwards, detect whether all the glass has completely slipped off the conveying stage. If so, the turning drive mechanism drives the conveying stage to turn upwards and reset.

[0035] The beneficial effects of the present invention are:

[0036] For the glass thickness detection device of the present invention, the thickness detection mechanism can perform synchronous detection during the transportation of the glass in the second direction, so as to realize the on-line continuous detection of the glass thickness, and further more reliably obtain whether the glass has out-of-tolerance problems, improve the reliability of detection. After the thickness detection mechanism completes the detection of the glass, the controller can calculate and judge whether the glass is qualified. If the glass is unqualified, the flipping drive mechanism drives the conveying platform to flip downward, so that the unqualified glass falls into the unqualified product recycling area. The conveying platform is not only used to convey the glass during the continuous detection of the glass thickness, but also used in cooperation with the flipping drive mechanism to realize the rejection of unqualified glass. Therefore, there is no need to additionally configure a dialing module and an unqualified product conveying module to process unqualified glass, which simplifies the structure of the glass thickness detection device, and can make the overall structure of the glass thickness detection device compact and reduce the occupied area in the site.

[0037] The glass thickness detection method of the present invention is executed by using the above-mentioned glass thickness detection device, and the detection result has good reliability and small occupied space in the site. Description of the Drawings

[0038] Figure 1 is a side view of the glass thickness detection device provided by the specific embodiment of the present invention;

[0039] Figure 2 is a top view of the glass thickness detection device provided by the specific embodiment of the present invention;

[0040] Figure 3 is a schematic diagram of the thickness detection mechanism when the conveying platform flips downward provided by the specific embodiment of the present invention;

[0041] Figure 4 is a top view of the thickness detection mechanism and the glass provided by the specific embodiment of the present invention;

[0042] Figure 5 is a light ray schematic diagram of the thickness detection mechanism provided by the specific embodiment of the present invention;

[0043] Figure 6 is a flowchart of the glass thickness detection method provided by the specific embodiment of the present invention.

[0044] In the figure:

[0045] 11. First frame; 12. Second frame;

[0046] 20. Conveying platform; 21. Platform main body; 22. Driving roller; 23. Conveying drive assembly; 24. Transmission assembly;

[0047] 30. Thickness detection mechanism; 31. Laser emission component; 32. First laser receiving component; 33. Second laser receiving component;

[0048] 40. Flip drive mechanism; 41. Base component; 411. Fixed seat; 412. Movable seat; 413. Height adjustment component; 4131. Stud; 4132. Threaded support; 42. Linear drive source; 421. Drive source main body; 422. Drive source output end;

[0049] 50. Support roller;

[0050] 61. In-place detection component; 62. Reset detection component;

[0051] 71. First pivot; 72. Second pivot; 73. Third pivot;

[0052] 80. Recycling bin;

[0053] 90. Qualified product conveying mechanism;

[0054] 100. Controller; 200. Glass. Detailed implementation manners

[0055] The present invention will be further described in detail below with reference to the drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the present invention, rather than limiting the present invention. Additionally, it should be noted that for the sake of description, only parts related to the present invention rather than all structures are shown in the drawings.

[0056] In the description of the present invention, unless otherwise clearly defined and limited, the terms "connected", "connected to", and "fixed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; 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 components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0057] In the present invention, unless otherwise clearly defined and limited, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through other features therebetween. Moreover, the first feature being "above", "above", and "on" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the first feature has a higher horizontal height than the second feature. The first feature being "below", "below", and "under" the second feature includes the first feature being directly below and obliquely below the second feature, or merely indicating that the first feature has a lower horizontal height than the second feature.

[0058] In the description of this embodiment, the orientation or positional relationships such as "upper", "lower", "right", etc. are based on the orientation or positional relationship shown in the drawings. It is only for the convenience of description and simplifying the operation, rather than indicating or implying that the device or component referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present invention. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0059] This embodiment provides a glass thickness detection device, where the glass is transparent glass. Hereinafter, taking the glass as a rectangular glass, the first direction is a horizontal direction, the second direction is another horizontal direction, and the first direction and the second direction are used as examples to illustrate the glass thickness detection device. It should be noted that the descriptions of "upstream" and "downstream" in the following text are both based on the movement direction of the glass during the detection process.

[0060] As Figures 1 - 3 shown, the glass thickness detection device includes a first frame 11, a conveying stage 20, a thickness detection mechanism 30, a flipping drive mechanism 40, and a controller 100. The controller 100 includes a programmable logic control module (such as a PLC). The controller 100 is used to control the coordinated operation of the various structures of the glass thickness detection device based on a preset program or manual operation. The first end of the conveying stage 20 in the second direction is connected to the first frame 11 through a first pivot 71 extending in the first direction. The conveying stage 20 can convey the glass 200 in the second direction. The thickness detection mechanism 30 is communicatively connected to the controller 100 and is used to detect the thickness of the glass 200 during the conveying process of the glass 200. The flipping drive mechanism 40 is communicatively connected to the controller 100 and thus indirectly communicatively connected to the thickness detection mechanism 30. The output end of the flipping drive mechanism 40 is connected to the conveying stage 20. The flipping drive mechanism 40 can drive the conveying stage 20 to flip downward around the first pivot 71 when the thickness detection mechanism 30 detects that the glass 200 is unqualified, so that the unqualified glass 200 slides into the recycling area. In this embodiment, the glass thickness detection device further includes a recycling box 80. The recycling box 80 is arranged in the recycling area and is used to accommodate the unqualified glass. The glass thickness detection device further includes a qualified product conveying mechanism 90. The qualified product conveying mechanism 90 is arranged downstream of the conveying stage 20 and can receive the qualified glass 200 from the conveying stage 20. The recycling box 80 is arranged below the qualified product conveying mechanism 90.

[0061] When using the glass thickness detection device of this embodiment, the glass 200 to be measured in thickness is gradually conveyed into the glass thickness detection device along the second direction by the upstream production equipment or manual operation ( Figure 1In the direction from left to right, the glass 200 gradually moves onto the conveying platform 20 along the second direction. The thickness detection mechanism 30 can perform synchronous detection during the conveyance of the glass 200 along the second direction, thereby realizing the on-line continuous detection of the thickness of the glass 200, and further more reliably obtaining whether there is a problem of out-of-tolerance for the glass 200, improving the reliability of detection. During the detection process, the thickness detection mechanism 30 sends the detection data to the controller 100. The controller 100 performs calculations and determines whether the glass 200 is qualified. If the glass 200 is unqualified, the flipping drive mechanism 40 drives the conveying platform 20 to flip downward, so that the unqualified glass 200 falls into the unqualified product recycling area. If the glass 200 is qualified, the flipping drive mechanism 40 does not act, and the conveying platform 20 conveys the qualified glass 200 into the qualified product conveying mechanism 90. In the glass thickness detection device of this embodiment, the conveying platform 20 is not only used to convey the glass 200 during the continuous detection of the glass thickness, but also used in cooperation with the flipping drive mechanism 40 to realize the rejection of unqualified glass 200. Therefore, there is no need to additionally configure a dialing module and an unqualified product conveying module to process the unqualified glass 200, thereby simplifying the structure of the glass thickness detection device. In addition, by arranging the recycling box 80 below the qualified product conveying mechanism 90, the overall structural compactness of the glass thickness detection device can be further improved, and thus the occupied area in the site can be reduced.

[0062] In this embodiment, optionally, the recycling box 80 can be a box with wheels, which is convenient for the operator to carry and process after the recycling box 80 is filled with unqualified glass 200. The qualified product conveying mechanism 90 can be a belt conveying mechanism, a roller conveying mechanism, etc., and no specific limitation is made here. It should be noted that the height of the bearing surface of the qualified product conveying mechanism 90 is flush with the height of the bearing surface of the conveying platform 20 before it flips downward (i.e., when it is in a horizontal state), so as to smoothly receive the qualified glass 200 from the conveying platform 20.

[0063] Such as Figure 1 and Figure 2As shown in the figure, the conveying platform 20 includes a platform main body 21, a plurality of driving rollers 22 and a conveying driving assembly 23. Among them, the first end of the platform main body 21 in the second direction is pivotally connected to the first frame 11 through a first pivot 71, and the second end in the second direction is pivotally connected to the output end of the flipping driving mechanism 40. The plurality of driving rollers 22 are arranged at intervals in the second direction. The driving rollers 22 extend in the first direction and are pivotally connected to the platform main body 21. The conveying driving assembly 23 can drive the plurality of driving rollers 22 to rotate to convey the glass 200 to move in the second direction. By arranging the conveying platform 20 to include a plurality of driving rollers 22 arranged at intervals to carry the glass 200, the contact area between the glass 200 and the conveying platform 20 can be reduced. Therefore, when the flipping driving mechanism 40 drives the conveying platform 20 to flip downward, the glass 200 is more likely to slide off the conveying mechanism. It can be understood that when the conveying platform 20 just starts to flip downward, the glass 200 may not be able to slide downward under the action of gravity. During this process, the conveying driving assembly 23 can be used to assist in driving the glass 200 to slide along the conveying platform 20. When the flipping angle of the conveying platform 20 downward is large enough and the glass 200 can automatically slide downward along the conveying platform 20 under the action of gravity, the driving of the conveying driving assembly 23 can be stopped. Such a setting can not only improve the unloading speed of non-conforming products, thereby improving the detection efficiency of the glass thickness detection device, but also reduce energy consumption. It should be noted that the conveying platform 20 can be set with a maximum downward flipping angle.

[0064] Optionally, as Figure 1 shown, the conveying driving assembly 23 includes a motor, and the motor is installed on the platform main body 21. The conveying platform 20 further includes a transmission assembly 24. The motor is connected to each of the driving rollers 22 arranged at intervals through the transmission assembly 24. In this way, not only the number of driving sources can be reduced, but also the synchronism of the rotation of each driving roller 22 can be ensured. In some embodiments, the transmission assembly 24 includes a belt pulley and a toothed belt. A belt pulley is fixed to the end of each driving roller 22, and each belt pulley is engaged with the toothed belt. The motor can directly or indirectly drive one driving roller 22 to rotate, thereby driving each driving roller 22 to rotate. In other embodiments, the transmission assembly 24 can also be set to include a sprocket and a chain, etc., which are not specifically limited herein.

[0065] As Figure 1 and Figure 3As shown, the flipping drive mechanism 40 includes a base assembly 41 and a linear drive source 42. The base assembly 41 can be directly fixed to the ground or can be set to be fixed to the first frame 11. The drive source body 421 of the linear drive source 42 is pivotally connected to the base assembly 41, and the drive source output end 422 of the linear drive source 42 is pivotally connected to the second end of the conveying platform 20 along the second direction. The drive source output end 422 can move linearly relative to the drive source body 421. In this embodiment, when the drive source output end 422 expands and contracts relative to the drive source body 421, the linear drive source 42 has two working positions relative to the base assembly 41, as Figure 1 shown. In the first working position, the linear drive source 42 is in an overall vertical state. At this time, it supports the conveying platform 20 in a horizontal state, and the conveying platform 20 can convey the glass 200 along the second direction. As Figure 3 shown. In the second working position, the drive source output end 422 of the linear drive source 42 retracts, and the entire linear drive source 42 rotates around the second pivot 72 between it and the base assembly 41, and the drive source output end 422 rotates around the third pivot 73 between it and the conveying platform 20. At the same time, the conveying platform 20 rotates around the first pivot 71 between it and the first frame 11, so that the second end of the conveying platform 20 flips downward. Optionally, the linear drive source 42 can be a cylinder, an oil cylinder, an electric cylinder, etc. It can be understood that the flipping drive mechanism 40 can also be provided with a limiting structure to assist in locking the linear drive source 42 in the first working position and / or the second working position.

[0066] As Figure 1 shown, the base assembly 41 includes a fixed seat 411, a movable seat 412 and a height adjustment assembly 413. The fixed seat 411 is configured for fixed installation, and the movable seat 412 is installed on the fixed seat 411 through the height adjustment assembly 413 to be able to move up and down relative to the fixed seat 411. The drive source body 421 of the linear drive source 42 is pivotally connected to the movable seat 412. By setting the height adjustment assembly 413 to adjust the height of the movable seat 412, the position of the linear drive source 42 can be adjusted, so as to ensure that the linear drive source 42 can support the conveying platform 20 in a horizontal state when in the first working position. Optionally, the adjustment assembly includes a stud 4131 and a threaded support 4132. The stud 4131 is fixedly connected to the fixed seat 411, the movable seat 412 is sleeved on the stud 4131, and threaded supports 4132 are provided on both sides. By rotating the threaded supports 4132, the height of the movable seat 412 can be adjusted. Of course, in other embodiments, the height adjustment assembly 413 can also be other structures capable of adjusting the height of the movable seat 412, which are not specifically limited herein.

[0067] As Figure 1 , Figure 4 and Figure 5As shown, the thickness detection mechanism 30 includes a laser emission component 31, a first laser reception component 32, and a second laser reception component 33. The laser emission component 31 is disposed on one side of the glass 200 and is capable of emitting incident light towards the glass 200 at a preset incident angle. The laser emission component 31 is communicatively connected to the controller 100. The first laser reception component 32 and the second laser reception component 33 are both disposed on the other side of the glass 200 and are spaced apart along the second direction. The first laser reception component 32 and the second laser reception component 33 are both communicatively connected to the controller 100 and are thus indirectly communicatively connected to the flipping drive mechanism 40. The first laser reception component 32 and the second laser reception component 33 are used to receive the refracted light passing through the glass 200. In this embodiment, the reception surfaces of the first laser reception component 32 and the second laser reception component 33 are located in the plane P.

[0068] Based on the principle that the refractive index remains unchanged when a monochromatic incident light passes through a transparent medium of the same material, the working principle of the thickness detection mechanism 30 is explained as follows: With reference to Figure 4 and Figure 5 As shown, P0 represents the plane where the upper surface of the glass 200 with the ideal thickness is located, P1 is the plane where the upper surface of the glass 200 with the maximum thickness within the tolerance range is located, and P2 is the plane where the upper surface of the glass 200 with the minimum thickness within the tolerance range is located. When the laser emission component 31 is fixed in position and the emitted light is incident on the upper surfaces (P1, P0, P2) of glasses 200 with different thicknesses at an incident angle α, the incident positions are A, B, and C respectively. The light exits from the positions A′, B′, and C′ on the lower surface of the corresponding glass 200 and lands on A″, B″, and C″ on the reception plane P. The first laser reception component 32 is disposed at the position C″ and extends towards the side away from the position B″, and the second laser reception component 33 is disposed at the position A″ and extends towards the side away from the position B″. Therefore, when the thickness of the glass 200 exceeds the minimum thickness of the tolerance, the refracted light will be received by the first laser reception component 32, and when the thickness of the glass 200 exceeds the maximum thickness of the tolerance, the refracted light will be received by the second laser reception component 33. That is to say, when the first laser reception component 32 or the second laser reception component 33 receives the refracted light, it indicates that the thickness of the glass 200 at this position is out of tolerance, and this glass 200 is a non-conforming product.

[0069] The installation methods of the first laser receiving component 32 and the second laser receiving component 33 are as follows: After the laser emitting component 31 is fixed, assuming that the refractive index of the glass 200 with the thickness to be measured is n, the incident angle of the laser is α, and the refraction angle is β. According to the formula: n = sinα / sinβ, the value of the refraction angle β in the glass 200 can be calculated, and then the laser exit position B' of the ideal thickness glass 200 can be determined. H is the distance from the receiving surface of the laser receiver to the bottom surface of the glass 200. According to the trigonometric function relationship, the position of B″ can be finally determined. The lengths of the line segment A″B″ and the line segment B″C″ can be calculated by the formula: A”B” = B”C” = ΔH*(secα - tanβ), and then the installation positions of the first laser receiving component 32 and the second laser receiving component 33 can be determined.

[0070] As Figure 2 shown, the laser emitting component 31 includes a linear laser light source and can emit a linear light ray extending in the first direction. Both the first laser receiving component 32 and the second laser receiving component 33 can receive the linear refracted light rays extending in the first direction. With such a setting, when the glass 200 passes through the thickness detection mechanism 30 along the second direction, the thickness of each position of the glass 200 along the first direction (i.e., the width direction) can be detected, thereby ensuring the reliability of the final detection result and also ensuring the overall detection efficiency. The linear laser light source and the linear laser receiving component are both prior arts and are not specifically limited herein.

[0071] As Figure 1 and Figure 2As shown in the figure, the glass thickness detection device further includes a second frame 12 and a support roller 50. The second frame 12 is independently arranged from the first frame 11. The support roller 50 extends along the first direction and is rotationally engaged with the second frame 12. The support roller 50 is configured to support the glass 200 and is arranged upstream of the conveying platform 20. The incident point of the laser emitting assembly 31 on the glass 200 is located upstream of the support roller 50. Since the conveying platform 20 needs to frequently perform flipping movements, after long-term use, its position accuracy may deviate. In this embodiment, by providing the second frame 12 and the support roller 50, it is ensured that when the glass thickness detection device detects the corresponding position of the glass 200, this position of the glass 200 is supported on the support roller 50 with a constant position, so as to ensure the accuracy of the incident angle, and further ensure the accuracy of the glass 200 thickness detection and improve the reliability of the detection result. It should be noted that when the glass 200 has not yet moved into the conveying platform 20 along the second direction, the glass 200 can be moved along the second direction by the upstream production equipment or manually. When the part of the glass 200 after detection enters the conveying platform 20, the conveying platform 20 can drive the glass 200 to move along the second direction. Optionally, in this embodiment, one support roller 50 is provided on the second frame 12. In some embodiments, two or more support rollers 50 can also be provided on the second frame 12, and the two or more support rollers 50 are arranged at intervals along the second direction.

[0072] As Figure 1 shown in the figure, the glass thickness detection device further includes a position-in-place detection assembly 61. The position-in-place detection assembly 61 is used to detect whether the glass 200 has reached the first position. The position-in-place detection assembly 61 is communicatively connected to the controller 100, and thus is communicatively connected to the thickness detection mechanism 30. The thickness detection mechanism 30 starts to detect when the glass 200 reaches the first position. Thereby, it is ensured that each position of the glass 200 along the length direction (i.e., the first direction) can be detected, and the reliability of the final detection result is ensured. In this embodiment, the "first position" is the upstream position of the incident point of the laser emitted by the laser emitting assembly 31 on the glass 200, so as to ensure that the detection starts before the glass 200 reaches the incident point. Optionally, the position-in-place detection assembly 61 can be a photoelectric switch. The position-in-place detection assembly 61 can be fixedly installed on the second bracket through a support structure. In some embodiments, when the position-in-place detection assembly 61 detects that the glass has left the first position, it can send a signal to the controller 100 to stop the thickness detection mechanism 30 from detecting, so as to avoid unnecessary energy consumption.

[0073] As Figure 1As shown, the glass thickness detection device further includes a reset detection component 62. The reset detection component 62 is used to detect whether all the glass 200 has completely slipped off the conveying platform 20 after the conveying platform 20 is turned downward. The reset detection component 62 is communicatively connected to the controller 100, and thus is communicatively connected to the flipping drive mechanism 40. When the unqualified glass 200 on the conveying platform 20 has completely slipped off, the flipping drive mechanism 40 drives the conveying platform 20 to turn upward and reset. It should be noted that the reset of the conveying platform 20 means that the conveying platform 20 is turned to the horizontal state, so that the next piece of glass 200 can be conveyed along the second direction. With this setting, not only can the situation where the glass 200 is flipped and reset without falling off the conveying platform 20 be avoided, but also the problem that the conveying platform 20 waits empty after the glass 200 has completely fallen off will not occur, thereby improving the detection efficiency of the glass 200. Optionally, the reset detection component 62 can also be a photoelectric switch. The reset detection component 62 can be fixedly installed on the conveying platform 20 through a support structure.

[0074] As Figure 6 shown, this embodiment also provides a glass thickness detection method, which is executed by using the above glass thickness detection device. The glass thickness detection method includes:

[0075] Start to convey the glass 200 to be detected for thickness along the second direction, and gradually convey the glass 200 onto the conveying platform 20;

[0076] During the process of conveying the glass 200, the thickness detection mechanism 30 detects the thickness of each position of the glass 200 along the second direction;

[0077] Obtain the detection result of the thickness detection mechanism 30 and judge whether the current glass 200 is qualified;

[0078] If the glass 200 is unqualified, the flipping drive mechanism 40 drives the conveying platform 20 to turn downward around the first pivot 71, so that the unqualified glass 200 slips off the conveying platform 20; if the glass 200 is qualified, the conveying platform 20 continues to convey the qualified glass 200 along the second direction.

[0079] During the process of the step "gradually convey the glass 200 onto the conveying platform 20": when the front end of the glass 200 along the second direction has not reached the conveying platform 20, it can be conveyed by the upstream production equipment or manually. When the front end of the glass 200 along the second direction gradually moves onto the conveying platform 20, the conveying of the glass 200 can gradually transition to being conveyed only by the conveying platform 20.

[0080] After starting the step of transporting the glass 200, it is detected whether the glass 200 moves to the first position along the second direction. If so, the thickness detection mechanism 30 starts to detect the thickness of the glass 200, ensuring that the thickness detection mechanism 30 can detect the thickness of the glass 200 at various positions along the second direction, and there is no need to perform detection work when no glass 200 passes by, reducing energy consumption. If the in-place detection component 61 does not detect that the glass 200 moves to the first position, it returns to the step of detecting whether the glass 200 moves to the first position along the second direction.

[0081] When the entire glass 200 has passed through the thickness detection mechanism 30 and the thickness detection is completed, the controller 100 obtains the detection data of the thickness detection mechanism 30. If during this process, any one of the first laser receiving component 32 or the second laser receiving component 33 receives a refracted light ray, it means that the glass 200 is unqualified. If neither the first laser receiving component 32 nor the second laser receiving component 33 has ever received a refracted light ray, it means that the glass 200 is qualified. After the detection is qualified, the conveying stage 20 continues to convey the glass 200 along the second direction to convey the glass into the qualified product conveying mechanism 90.

[0082] After determining that the glass 200 is unqualified and the flipping drive mechanism 40 drives the conveying stage 20 to flip downward, it is detected whether the glass 200 completely slides off the conveying stage 20. If so, the flipping drive mechanism 40 drives the conveying stage 20 to flip upward and reset. If not, it continues to detect whether the glass 200 completely slides off the conveying stage 20. With this setting, it can not only avoid the situation where the conveying stage 20 flips and resets before the glass 200 falls off the conveying stage 20, but also avoid the problem that the conveying stage 20 waits empty after the glass 200 completely falls off, thereby improving the detection efficiency of the glass 200. It should be noted that when the flipping drive mechanism 40 drives the conveying stage 20 to flip downward to the maximum angle and the glass still does not completely fall off the conveying stage 20, the glass 200 can be driven to fall by the conveying drive component 23.

[0083] Obviously, the above-mentioned embodiments of the present invention are merely examples for clearly explaining the present invention, rather than limiting the implementation manner of the present invention. For those of ordinary skill in the art, according to the idea of the present invention, there will be changes in the specific implementation manner and application scope. The content of this specification should not be construed as a limitation to the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included within the protection scope of the claims of the present invention.

Claims

1. A glass thickness detection device, characterized in that, Comprising: A first rack (11); A conveying carrier (20), the first end of which is connected to the first rack (11) through a first pivot (71) along a first direction, and the conveying carrier (20) is capable of conveying glass along a second direction; A thickness detection mechanism (30) for detecting the thickness of the glass during the glass conveying process; A flipping drive mechanism (40), the output end of which is connected to the conveying carrier (20), the flipping drive mechanism (40) is communicatively connected to the thickness detection mechanism (30), and is capable of driving the conveying carrier (20) to flip downward around the first pivot (71) when the thickness detection mechanism (30) detects that the glass is unqualified, so that the unqualified glass slides down to the unqualified product recycling area.

2. The glass thickness detection device according to claim 1, wherein, The flipping drive mechanism (40) includes: A base assembly (41); A linear drive source (42), the drive source main body (421) of the linear drive source (42) is pivotally connected to the base assembly (41), the drive source output end (422) of the linear drive source (42) is pivotally connected to the second end of the conveying carrier (20), and the drive source output end (422) can linearly move relative to the drive source main body (421).

3. The glass thickness detection device according to claim 2, characterized in that, The base assembly (41) includes a fixed seat (411), a movable seat (412) and a height adjustment assembly (413), the fixed seat (411) is configured for fixed installation, the movable seat (412) is installed on the fixed seat (411) through the height adjustment assembly (413) so as to be capable of lifting movement relative to the fixed seat (411), and the drive source main body (421) of the linear drive source (42) is pivotally connected to the movable seat (412).

4. The glass thickness detection device according to any one of claims 1-3, characterized in that, The thickness detection mechanism (30) includes: A laser emission assembly (31) provided on one side of the glass and capable of emitting incident light to the glass at a preset incident angle; A first laser reception assembly (32) and a second laser reception assembly (33), both provided on the other side of the glass and spaced along the second direction, the first laser reception assembly (32) and the second laser reception assembly (33) are both communicatively connected to the flipping drive mechanism (40), and are configured to receive the refracted light passing through the glass.

5. The glass thickness detection device according to claim 4, wherein, The laser emission assembly (31) includes a linear laser light source and can emit a linear light extending along the first direction, and the first laser reception assembly (32) and the second laser reception assembly (33) can both receive the linear refracted light extending along the first direction.

6. The glass thickness detection device according to claim 4, wherein The glass thickness detection device further includes a second rack (12) and a support roller (50), the second rack (12) is independently provided from the first rack (11), the support roller (50) extends along the first direction and is rotationally matched with the second rack (12), the support roller (50) is configured to support the glass and is provided upstream of the conveying carrier (20), and the incident point of the laser emission assembly (31) on the glass is located upstream of the support roller (50).

7. The glass thickness detection device according to any one of claims 1 to 3, characterized in that, Also included: In-place detection component (61), configured to detect whether glass reaches the first position. The in-place detection component (61) is communicatively connected to the thickness detection mechanism (30) so that the thickness detection mechanism (30) starts detecting when glass reaches the first position; and / or Reset detection component (62), configured to detect whether glass completely slides off the conveying stage (20) after the conveying stage (20) flips downward. The reset detection component (62) is communicatively connected to the flipping drive mechanism (40) so that the flipping drive mechanism (40) drives the conveying stage (20) to flip upward and reset after the unqualified glass completely slides off.

8. The glass thickness detection device according to any one of claims 1-3, characterized in that, The conveying stage (20) includes: A stage main body (21), the first end of the stage main body (21) in the second direction is pivotally connected to the first frame (11) through the first pivot (71), and the second end in the second direction is pivotally connected to the output end of the flipping drive mechanism (40); A plurality of driving rollers (22), arranged at intervals in the second direction. The driving rollers (22) extend in the first direction and are pivotally connected to the stage main body (21); A conveying drive assembly (23), capable of driving the plurality of driving rollers (22) to rotate to convey the glass to move in the second direction.

9. A method for detecting the thickness of glass, characterized in that, Executed by using the glass thickness detection device according to any one of claims 1-8, the glass thickness detection method includes: Start conveying the glass to be detected for thickness in the second direction and gradually convey the glass onto the conveying stage (20); During the process of conveying the glass, the thickness detection mechanism (30) detects the thickness of the glass at various positions in the second direction; Obtain the detection result of the thickness detection mechanism (30) and determine whether the current glass is qualified; If the glass is unqualified, the flipping drive mechanism (40) drives the conveying stage (20) to flip downward around the first pivot (71) so that the unqualified glass slides off the conveying stage (20); if the glass is qualified, the conveying stage (20) continues to convey the qualified glass in the second direction.

10. The glass thickness detection method according to claim 9, characterized in that, It further includes: After starting to convey the glass, detect whether there is glass moving to the first position in the second direction. If so, the thickness detection mechanism (30) starts to detect the thickness of the glass; and / or After the flipping drive mechanism (40) drives the conveying stage (20) to flip downward, detect whether there is glass completely sliding off the conveying stage (20). If so, the flipping drive mechanism (40) drives the conveying stage (20) to flip upward and reset.

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