Coated glass performance testing device

Abstract

The invention discloses a coated glass performance inspection device. The device comprises a rack, a feeding structure, a detection structure and a limiting structure, the material conveying structure comprises a material guide plate and a plurality of conveying rollers, the multiple conveying rollers are installed on the rack and arranged at intervals in the horizontal direction, and the material guide plate is installed on the rack and located below the multiple conveying rollers; the detection structure comprises a detection head and a detection driving part, the detection head is movably arranged above the conveying roller, and the detection driving part is connected with the rack and the detection head and used for driving the detection head to move and enabling the detection head to be close to or away from the to-be-detected material on the conveying roller in any direction; the limiting structure is installed on the machine frame and has a limiting state for limiting movement of the materials and an unlimiting state for loosening the materials. According to the scheme, shaking of the coated glass during detection is avoided, the stability of detection operation is improved, comprehensive detection of the coated glass can be achieved, then the detection precision is improved, glass fragmentation residues are rapidly cleaned, the structure is simple, and operation is convenient and fast.

Description

Technical Field

[0001] The present invention relates to the technical field of glass performance inspection, and particularly relates to a coating glass performance inspection device. Background Art

[0002] When the traditional coating glass processing resistance performance inspection device detects the external pressure resistance of the coating glass, it is inconvenient to clean the broken coating glass.

[0003] For this reason, the publicly disclosed patent No. CN211292370U discloses a coating glass processing resistance performance inspection device. When in use, the coating glass to be detected is placed on the top of the conveyor belt, and the coating glass to be detected is sent to the top of the movable plate detection roller. Then, the movable plate is moved downward by a hydraulic cylinder to extrude the surface of the coating glass, so as to detect the pressure received at the breaking critical point of the coating glass. After the detection is completed, the conveyor belt can send out the fragments of the coating glass from the operating table, which can adapt to the processing pressure resistance detection of coating glass of different thickness models, and at the same time is convenient for cleaning the fragments of the coating glass without manual cleaning.

[0004] However, this technical solution essentially relies on the conveyor belt to support the coating glass, with poor positioning effect, easy to shake during performance inspection, not convenient for flexibly selecting the detection area of the glass, the detection effect is not comprehensive enough, and the detection accuracy needs to be improved. Summary of the Invention

[0005] The purpose of the present invention is to overcome the above technical deficiencies and propose a coating glass performance inspection device to solve the technical problem that the detection accuracy of the existing glass processing resistance performance inspection device needs to be improved.

[0006] To achieve the above technical purpose, the present invention adopts the following technical solutions: The present invention provides a coating glass performance inspection device, including: A frame; A feeding structure, including a guiding plate and a plurality of conveyor rollers. The plurality of conveyor rollers are installed on the frame and are arranged at intervals in the horizontal direction. The guiding plate is installed on the frame and is located below the plurality of conveyor rollers; A detection structure, including a detection head and a detection driving part. The detection head is movably arranged above the conveyor rollers. The detection driving part is connected to the frame and the detection head, and is used to drive the detection head to move, so that the detection head can approach or move away from the material to be detected on the conveyor rollers in any direction; and A limiting structure, installed on the frame, and having a limiting state for restricting the movement of the material and a releasing state for releasing the material.

[0007] In some embodiments, the guide plate is arranged in an inclined manner, and the lower end in the inclined direction is a waste discharge end; The material conveying structure further comprises a waste hopper, and the waste hopper is located below the waste discharge end.

[0008] In some embodiments, the frame is provided with a guide arm extending along the arrangement direction of the plurality of conveying rollers; The detection structure also includes a fixed frame, the fixed frame is provided with a guide channel for the guide arm to pass through, the detection head is installed on the fixed frame, and can be raised and lowered relative to the fixed frame, and can move relative to the fixed frame along the axial direction of the conveying roller.

[0009] In some embodiments, the guide arm is provided with tooth grooves along its extension direction, and the side wall of the guide channel is provided with a clearance opening; The detection drive unit includes a drive motor and a drive gear. The drive motor is installed on the fixing frame, and its output shaft is connected to the drive gear. The drive gear extends from the clearance opening into the guide channel and meshes with the tooth groove.

[0010] In some embodiments, the detection drive unit also includes a first motor, a first lead screw and a movable seat, the first motor is mounted on the fixed frame and is drivingly connected to the first lead screw, the first lead screw is located above the conveying roller and extends along the axial direction of the conveying roller, the movable seat is arranged on the fixed frame and is provided with a threaded channel for the first lead screw to pass through, and moves along the axial direction of the conveying roller when the first lead screw rotates, wherein the detection head is mounted on the movable seat.

[0011] In some embodiments, the fixing frame has a mounting arm spaced apart above the conveying roller, the mounting arm is provided with a guide groove along the axial direction of the conveying roller, wherein the first lead screw is passed through the guide groove; The movable seat is disposed in the guide groove.

[0012] In some embodiments, the detection drive unit further includes a detection hydraulic rod, one end of which is mounted on the movable seat, and the other end of which is connected to the detection head and extends in a vertical direction.

[0013] In some embodiments, the limiting structure includes a limiting drive unit and two groups of adjustment arms. The two groups of adjustment arms are installed on the frame and can approach and move away from each other. When they approach each other, they can switch to the limiting state to clamp the material, and when they move away from each other, they can switch to the releasing state. The limiting drive unit is driven and connected to at least one of the adjustment arms, and is used to drive the adjustment arm to approach and move away from the other adjustment arm.

[0014] In some embodiments, the adjusting arm is located between the conveying roller and the material guiding plate. The limiting structure further includes two groups of limiting arms, which are respectively installed on the two adjusting arms, located between two adjacent conveying rollers, and extend to the upper side of the conveying roller.

[0015] In some embodiments, the limiting structure further includes an electric pneumatic rod, a connecting arm and a pressing arm. The base of the electric pneumatic rod is installed on the limiting arm and extends in the vertical direction. The connecting arm connects the telescopic rod of the electric pneumatic rod and extends in the horizontal direction. The pressing arm is connected to the connecting arm and extends towards the conveying roller.

[0016] Compared with the prior art, for the coating glass performance inspection device provided by the present invention, the coating glass to be detected is placed on the conveying roller, and the conveying roller rotates to drive the coating glass to be detected to move. When the coating glass to be detected moves to the detection position, the limiting structure is switched to the limiting state to limit the movement of the coating glass to be detected, and then the detection driving part is used to drive the detection head to approach and press against the coating glass to be detected, so as to detect the processability of the coating glass to be detected.

[0017] In this solution, the coating glass is rigidly supported by the conveying roller, and the movement of the coating glass is restricted by the limiting structure, so as to avoid the shaking of the coating glass during detection, improve the stability of the detection operation. And because the detection head can move relative to the conveying roller in any direction, the relative position between the detection head and the coating glass can be flexibly adjusted, so that the detection head can press against any position of the coating glass, realizing the comprehensive detection of the coating glass, and further improving the detection accuracy. In addition, when the coating glass to be detected is broken, the broken glass residues can fall on the material guiding plate through the gaps of the conveying roller for collection, realizing the rapid cleaning of the broken glass residues, with a simple structure and convenient operation. Description of the Drawings

[0018] Figure 1 is a schematic diagram of the coating glass performance inspection device provided by the embodiment of the present invention; Figure 2 is Figure 1 a schematic diagram of the coating glass performance inspection device from another angle in Figure 3 is Figure 1 a sectional view of the coating glass performance inspection device in Figure 4 is Figure 1 a schematic diagram of the detection mechanism in Figure 5 is Figure 1 a top view (partial) of the coating glass performance inspection device in Figure 6 is Figure 5 a sectional view of the limiting structure in

[0019] Description of the reference numerals: 1. Frame; 11. Guide arm; 11a. Tooth groove; 2. Feeding structure; 21. Guide plate; 211. Waste discharging end; 22. Conveyor roller; 23. Waste hopper; 24. Feeding motor; 3. Detection structure; 31. Detection head; 32. Detection driving part; 321. Driving motor; 322. Driving gear; 323. First motor; 324. First lead screw; 325. Movable seat; 326. Detection hydraulic rod; 33. Fixed frame; 33a. Guide channel; 33b. Relief opening; 331. Mounting arm; 331a. Guide groove; 4. Limiting structure; 41. Limiting driving part; 42. Adjusting arm; 43. Limiting arm; 44. Electric pneumatic rod; 45. Connecting arm; 46. Pressing arm; 47. Second motor; 48. Second lead screw; 49. Limiting driving frame; 491. Driving nut; 5. Feeding box; 51. Placing table; 52. Lifting electric push rod; 53. Feeding electric push rod; 54. Pushing plate; 6. PLC controller; 7. Digital display. Detailed implementation manners

[0020] In order to make the objectives, technical solutions and advantages of the present invention clearer and more understandable, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0021] In order to solve the technical problem that the detection accuracy of the glass processing performance inspection device in the prior art needs to be improved, the present invention provides a coated glass performance inspection device, which can improve the detection accuracy, realize the rapid cleaning of glass fragmentation residues, has a simple structure and is convenient to operate.

[0022] Please refer to Figures 1 to 3 , Figures 1 to 3 , which is a schematic structural diagram of a coated glass performance inspection device in an embodiment of the present invention. The coated glass performance inspection device includes a frame 1, a feeding structure 2, a detection structure 3 and a limiting structure 4; the feeding structure 2 includes a guide plate 21 and a plurality of conveyor rollers 22, the plurality of conveyor rollers 22 are installed on the frame 1 and are arranged at intervals in the horizontal direction, the guide plate 21 is installed on the frame 1 and is located below the plurality of conveyor rollers 22; the detection structure 3 includes a detection head 31 and a detection driving part 32, the detection head 31 is movably arranged on the frame 1 and is located above the conveyor roller 22, the detection driving part 32 is connected to the frame and the detection head 31, and is used to drive the detection head 31 to move, so that the detection head 31 can approach and move away from the material to be detected on the conveyor roller 22 in any direction; the limiting structure 4 is installed on the frame 1 and has a limiting state for restricting the movement of the material and a releasing state for releasing the material.

[0023] The coating glass performance inspection device provided by the present invention places the coating glass to be detected on the conveying roller 22. The rotation of the conveying roller 22 drives the movement of the coating glass to be detected. When the coating glass to be detected moves to the detection position, the limiting structure 4 is switched to the limiting state to restrict the movement of the coating glass to be detected. Then, the detection driving part 32 is used to drive the detection head 31 to approach and press against the coating glass to be detected, so as to detect the processability of the coating glass to be detected.

[0024] In this solution, the coating glass is rigidly supported by the conveying roller 22, and the movement of the coating glass is restricted by the limiting structure 4, avoiding the shaking of the coating glass during detection, improving the stability of the detection operation. And since the detection head 31 can move relative to the conveying roller 22 in any direction, the relative position between the detection head 31 and the coating glass can be flexibly adjusted, so that the detection head 31 can press against any position of the coating glass, realizing the comprehensive detection of the coating glass, and further improving the detection accuracy. In addition, when the coating glass to be detected is broken, the glass fragments can fall on the material guiding plate 21 through the gap of the conveying roller 22 for collection, realizing the rapid cleaning of the glass fragments. The structure is simple and the operation is convenient.

[0025] It should be noted that in this embodiment, the detection head 31 includes a connected detection pressing block and a pressure sensor, and its specific structure and principle are prior art and will not be elaborated here. In addition, the coating glass performance inspection device in this solution includes a feeding motor 24, and the feeding motor 24 is drivingly connected to the conveying roller 22 for driving the conveying roller 22 to rotate, and a rubber sleeve is sleeved on the conveying roller 22 at the feeding end.

[0026] In one embodiment, the material guiding plate 21 is inclined, and the lower end in its inclined direction is the waste discharging end 211; the feeding structure 2 further includes a waste hopper 23, and the waste hopper 23 is located below the waste discharging end 211.

[0027] In this embodiment, the material guiding plate 21 is inclined, and the waste hopper 23 is arranged corresponding to the waste discharging end 211 of the material guiding plate 21, so that the glass residues can slide down along the material guiding plate 21 under the action of their own weight and enter the waste hopper 23 for collection, further improving the convenience of collecting the glass residues.

[0028] In one embodiment, please refer to Figure 1 and Figure 4 , the frame 1 is provided with a guiding arm 11 extending along the arrangement direction of a plurality of conveying rollers 22; the detection structure 3 further includes a fixing frame 33, the fixing frame 33 is provided with a guiding channel 33a for the guiding arm 11 to pass through, the detection head 31 is installed on the fixing frame 33, and can move up and down relative to the fixing frame 33 and can move along the axial direction of the conveying roller 22 relative to the fixing frame 33.

[0029] In this embodiment, the detection head 31 is placed on the fixed frame 33, and the fixed frame 33 can move relative to the conveying roller 22 along the arrangement direction of the multiple conveying rollers 22, and the detection head 31 can be raised and lowered relative to the fixed frame 33, and can move relative to the fixed frame 33 along the axial direction of the conveying roller 22, so that the detection head 31 can move relative to the conveying roller 22 along the X, Y and Z directions, and the detection head 31 can move relative to the conveying roller 22 in any direction.

[0030] It should be noted that, in one embodiment, the detection drive unit 32 can be configured as a robotic arm to achieve flexible movement of the detection head 31. In another embodiment, the detection drive unit 32 can be configured as an integrated mechanism of linear motors in three degrees of freedom.

[0031] In one embodiment, the guide arm 11 is provided with a tooth groove 11a along its extension direction, and the side wall of the guide channel 33a is provided with a clearance opening 33b; the detection drive unit 32 includes a drive motor 321 and a drive gear 322, the drive motor 321 is installed on the fixing frame 33, and its output shaft is connected to the drive gear 322, the drive gear 322 extends into the guide channel 33a from the clearance opening 33b and meshes with the tooth groove 11a.

[0032] In this embodiment, when the driving motor 321 is working, it drives the driving gear 322 to rotate synchronously. Since the driving gear 322 is engaged with the tooth groove 11a on the guide arm 11, the fixed frame 33 can move along the extension direction of the guide arm 11, thereby realizing the movement of the detection head 31 along the arrangement direction of the multiple conveying rollers 22.

[0033] In one embodiment, the detection drive unit 32 also includes a first motor 323, a first lead screw 324 and a movable seat 325. The first motor 323 is installed on the fixed frame 33 and is drivingly connected to the first lead screw 324. The first lead screw 324 is located above the conveying roller 22 and extends along the axial direction of the conveying roller 22. The movable seat 325 is arranged on the fixed frame 33 and is provided with a threaded channel for the first lead screw 324 to pass through, and moves along the axial direction of the conveying roller 22 when the first lead screw 324 rotates, wherein the detection head 31 is installed on the movable seat 325.

[0034] In this embodiment, the output shaft of the first motor 323 rotates, synchronously driving the first lead screw 324 to rotate, thereby driving the movable seat 325 to move along the axial direction of the conveying roller 22, so that the axial movement of the detection head 31 on the conveying roller 22 has high precision, and the structure is simple and reliable.

[0035] In one embodiment, the fixed frame 33 has a mounting arm 331 spaced apart above the conveying roller 22, and the mounting arm 331 is provided with a guide groove 331a along the axial direction of the conveying roller 22, wherein the first lead screw 324 is passed through the guide groove 331a; the movable seat 325 is placed in the guide groove 331a.

[0036] In this embodiment, the movable seat 325 is placed in the guide groove 331a to play a role in guiding and limiting, ensuring that the movable seat 325 stably moves axially along the conveying roller 22. Specifically, in this solution, the movable seat 325 is set in the form of an I-shaped block.

[0037] In one embodiment, the detection driving part 32 further includes a detection hydraulic rod 326. One end of the detection hydraulic rod 326 is installed on the movable seat 325, and the other end is connected to the detection head 31 and extends in the vertical direction.

[0038] In this embodiment, the detection driving part 32 further includes a detection hydraulic rod 326 to drive the detection head 31 to lift through the detection hydraulic rod 326, and the structure is stable and reliable.

[0039] It should be noted that the specific setting form of the limiting structure 4 is not limited, as long as it can realize the limiting and unlocking of the glass. In one implementation, the limiting structure 4 is set as a vacuum chuck, and a vacuum pump and a lifting mechanism are correspondingly configured. In another embodiment, the limiting structure 4 is set in the form of a pressing plate, and the glass is pressed against the conveying roller 22 through the pressing plate.

[0040] In one embodiment, please refer to Figure 3 、 Figure 5 and Figure 6 , the limiting structure 4 includes a limiting driving part 41 and two groups of adjusting arms 42. The two groups of adjusting arms 42 are installed on the frame 1 and can approach and move away from each other, and can switch to the limiting state to clamp the material when approaching each other, and can switch to the unlocking state when moving away from each other. The limiting driving part 41 is at least drivingly connected to one adjusting arm 42 for driving the adjusting arm 42 to approach and move away from the other adjusting arm 42.

[0041] In this embodiment, the limiting driving part 41 drives the two groups of adjusting arms 42 to approach and move away from each other, and can clamp the glass when approaching each other to limit the movement of the glass, and loosen the glass when moving away from each other, and the structure is stable and reliable.

[0042] It should be noted that in this solution, one of the two adjusting arms 42 is fixedly arranged, and the other is movably arranged to be able to approach and move away from the other adjusting arm 42. It should be understood that the limiting driving part 41 can be a hydraulic rod or a linear motor drive.

[0043] In this embodiment, the limit driving part 41 includes a second motor 47, a second lead screw 48 and a limit driving frame 49. The limit driving frame 49 is installed on the frame 1, connected to the movably arranged adjusting arm 42, and can move in the direction of approaching and departing from the other adjusting arm 42, and is provided with a driving nut 491. The second motor 47 is installed on the frame 1 and is drivingly connected to the second lead screw 48. The second lead screw 48 is threadedly connected to the driving nut 491, and when rotating, drives the limit driving frame 49 to move in the direction of approaching and departing from the other adjusting arm 42.

[0044] In one embodiment, the adjusting arm 42 is located between the conveying roller 22 and the guiding plate 21. The limiting structure 4 further includes two groups of limiting arms 43. The two groups of limiting arms 43 are respectively installed on the two groups of adjusting arms 42, located between two adjacent conveying rollers 22, and extend to the upper side of the conveying roller 22.

[0045] In this embodiment, the adjusting arm 42 is placed below the conveying roller 22, and the glass is clamped by the limiting arm 43 on the adjusting arm 42, avoiding the adjusting arm 42 occupying the space above the conveying roller 22. It should be understood that there are multiple limiting arms 43 on each adjusting arm 42.

[0046] In one embodiment, the limiting structure 4 further includes an electric pneumatic rod 44, a connecting arm 45 and a pressing arm 46. The base of the electric pneumatic rod 44 is installed on the limiting arm 43 and extends in the vertical direction. The connecting arm 45 is connected to the telescopic rod of the electric pneumatic rod 44 and extends in the horizontal direction. The pressing arm 46 is connected to the connecting arm 45 and extends towards the conveying roller 22.

[0047] In this embodiment, the electric pneumatic rod 44 is arranged on the limiting arm 43. The connecting arm 45 is driven to rise and fall by the electric pneumatic rod 44, and then the pressing arm 46 is driven to press against the upper side of the glass, realizing stable limiting of the glass. It should be noted that in this solution, a rubber pressing block is provided on the side of the pressing arm 46 away from the connecting arm 45.

[0048] In one embodiment, the coated glass performance inspection device further includes a feeding box 5, a placing table 51, a lifting electric push rod 52 and a feeding electric push rod 53. The feeding box 5 is installed on the frame 1 and is located at one end in the conveying direction of the plurality of conveying rollers 22. The bottom of the feeding box 5 is open, and a feeding channel is provided along the direction of approaching the conveying roller 22. The placing table 51 is located at the bottom of the feeding box 5 and is installed on the frame 1 through the lifting electric push rod 52 to be able to lift in and out of the feeding box 5. The feeding electric push rod 53 is located on the side of the feeding box 5 away from the conveying roller 22. The end of its telescopic rod is connected with a pushing plate 54. The pushing plate 54 can extend into the feeding channel and can push the glass at the bottom of the placing table 51 onto the conveying roller 22 when the telescopic rod extends.

[0049] In addition, in one of the embodiments, the coating glass performance inspection device further includes a PLC controller 6 (programmable logic controller) and a digital display 7. The PLC controller 6 is electrically connected to each driving component to control the operation of each electrical component. The digital display 7 is electrically connected to the detection head 31 and is used to display the detection data of the detection head 31 in real time.

[0050] For a better understanding of the present invention, the following Figures 1 to 6 will describe the technical solution of the present invention in detail: The specific detection process of the glass performance detection device in this solution is as follows: When this device is in use, it is externally powered. The PLC controller 6 is used to control the operation of each electrical component. The coated glass is stacked on the placement table 51. The lifting electric push rod 52 can adjust the height of the placement table 51. When the lifting electric push rod 52 drives the placement table 51 to rise, the stacked coated glass enters the feeding box 5. Then, the feeding electric push rod 53 drives the pushing plate 54 to move, and the lowermost coated glass can be pushed along the feeding channel to the top of the conveying roller 22. The feeding motor 24 drives the right conveying roller 22 to rotate, and under the action of friction, the coated glass can be guided into the area of the left conveying roller 22.

[0051] When the coated glass to be detected is placed at the detection position of the conveying roller 22, the second motor 47 drives the second lead screw 48 to rotate, and the driving nut 491 can drive the limit driving frame 49 to move. The distance between the two adjusting arms 42 is reduced, and the limit arm 43 is located between two adjacent conveying rollers 22. Thus, the two limit arms 43 clamp the coated glass after approaching, avoiding the front-back shaking of the coated glass during detection. After the limit arm 43 completes the clamping, the extending electric air pressure rod 44 is extended, so that the pressing arm 46 descends. The rubber pressing block at the end of the pressing arm 46 can abut against the upper surface of the coated glass for pressing, avoiding the up-down shaking of the coated glass during detection and improving the stability of the detection operation.

[0052] Then, the driving motor 321 drives the driving gear 322 to rotate. The driving gear 322 meshes with the tooth groove 11a on the guiding arm 11, so that the fixing frame 33 moves along the extending direction of the guiding arm 11, thereby adjusting the relative position between the coated glass and the mounting arm 331. Then, the first motor 323 drives the first lead screw 324 to rotate, and the movable seat 325 can move along the guiding groove 331a, further adjusting the relative position between the detection head 31 and the coated glass, and enabling a comprehensive detection of the glass to be measured. Finally, the detection hydraulic rod 326 drives the detection head 31 to descend, and the detection pressing block of the detection head 31 can abut against the coated glass for pressing, and the pressure value is transmitted from the pressure sensor to the digital display 7 for display. Thus, the pressure received at the breaking critical point of the coated glass can be detected by this device, which is intuitive and convenient.

[0053] And when the coated glass is detected to be broken, the residue can fall on the material guide plate 21 along the gap of the conveyor roller 22, and the inclined material guide plate 21 is used to export the material to the waste discharge end 211 and collect it through the waste hopper 23, which is convenient and fast.

[0054] The specific embodiments of the present invention described above do not constitute a limitation to the protection scope of the present invention. Any other corresponding changes and deformations made according to the technical concept of the present invention shall be included in the protection scope of the claims of the present invention.

Claims

1. A coated glass performance testing device, characterized in that: include: frame; A material feeding structure, comprising a material guide plate and a plurality of conveying rollers, wherein the plurality of conveying rollers are mounted on the frame and arranged at intervals in the horizontal direction, and the material guide plate is mounted on the frame and located below the plurality of conveying rollers; A detection structure, comprising a detection head and a detection drive unit, wherein the detection head is movably arranged above the conveying roller, and the detection drive unit is connected to a frame and the detection head, and is used to drive the detection head to move, so that the detection head can approach or move away from the material to be detected on the conveying roller in any direction; and The limiting structure is installed on the frame and has a limiting state for limiting the movement of materials and a releasing state for loosening the materials.

2. The coated glass performance testing device according to claim 1, characterized in that: The guide plate is arranged in an inclined manner, and the lower end in the inclined direction is a waste discharge end; The material conveying structure further comprises a waste hopper, and the waste hopper is located below the waste discharge end.

3. The coated glass performance testing device according to claim 1, characterized in that: The frame is provided with a guide arm extending along the arrangement direction of the plurality of conveying rollers; The detection structure also includes a fixed frame, the fixed frame is provided with a guide channel for the guide arm to pass through, the detection head is installed on the fixed frame, and can be raised and lowered relative to the fixed frame, and can move relative to the fixed frame along the axial direction of the conveying roller.

4. The coated glass performance testing device according to claim 3, characterized in that: The guide arm is provided with tooth grooves along its extension direction, and the side wall of the guide channel is provided with a clearance opening; The detection drive unit includes a drive motor and a drive gear. The drive motor is installed on the fixing frame, and its output shaft is connected to the drive gear. The drive gear extends from the clearance opening into the guide channel and meshes with the tooth groove.

5. The coated glass performance testing device according to claim 3, characterized in that: The detection drive unit also includes a first motor, a first lead screw and a movable seat. The first motor is mounted on the fixed frame and is drivingly connected to the first lead screw. The first lead screw is located above the conveying roller and extends along the axial direction of the conveying roller. The movable seat is arranged on the fixed frame and is provided with a threaded channel for the first lead screw to pass through, and moves along the axial direction of the conveying roller when the first lead screw rotates, wherein the detection head is mounted on the movable seat.

6. The coated glass performance testing device according to claim 5, characterized in that: The fixing frame has a mounting arm spaced apart above the conveying roller, the mounting arm is provided with a guide groove along the axial direction of the conveying roller, wherein the first lead screw is passed through the guide groove; The movable seat is disposed in the guide groove.

7. The coated glass performance testing device according to claim 5, characterized in that: The detection driving part also includes a detection hydraulic rod, one end of which is installed on the movable seat, and the other end of which is connected to the detection head and extends in the vertical direction.

8. The coated glass performance testing device according to claim 1, characterized in that: The limiting structure includes a limiting driving part and two groups of adjusting arms. The two groups of adjusting arms are installed on the frame and can approach and move away from each other. When approaching each other, they can switch to the limiting state to clamp the material, and when moving away from each other, they can switch to the releasing state. The limiting driving part is drivingly connected to at least one of the adjusting arms, and is used to drive the adjusting arm to approach and move away from the other adjusting arm.

9. The coated glass performance testing device according to claim 8, characterized in that: The adjusting arm is located between the conveying roller and the material guide plate. The limiting structure also includes two groups of limiting arms. The two groups of limiting arms are respectively installed on the two groups of adjusting arms and are located between two adjacent conveying rollers and extend to the upper side of the conveying roller.

10. The coated glass performance testing device according to claim 9, characterized in that: The limiting structure also includes an electric pneumatic rod, a connecting arm and a pressing arm. The base of the electric pneumatic rod is installed on the limiting arm and extends in the vertical direction. The connecting arm is connected to the telescopic rod of the electric pneumatic rod and extends in the horizontal direction. The pressing arm is connected to the connecting arm and extends toward the conveying roller.

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