Glass coating production line

Abstract

The utility model relates to a kind of glass gluing production line, it includes: conveyor unit and front and rear sequentially arranged feeding machine table, spraying machine table, standby material machine table, drying machine table and detection machine table, conveyor unit includes sequentially respectively in feeding machine table, spraying machine table, standby material machine table, drying machine table and detection machine table, and front and rear sequentially link's feeding conveying mechanism, spraying conveying mechanism, standby material conveying mechanism, drying conveying mechanism and detection conveying mechanism, each conveying mechanism is used for carrying glass, and is configured to be able to transport glass back.Spraying machine table includes rack and spray head, spray head is located above spraying conveying mechanism, and spray head can be lifted and can be movably arranged on rack along left and right direction.

Description

Technical Field

[0001] This utility model relates to the field of spray coating technology, and more specifically, to a glass coating production line. Background Technology

[0002] Glass is an inorganic non-metallic material with high transparency, high hardness, and strong corrosion resistance, and it is widely used in building curtain walls, home bathroom fixtures, and automotive windows. In actual production scenarios, adhesive needs to cover the glass surface to form a continuous adhesive film, thereby effectively isolating moisture, dust, and chemical corrosive substances, extending the service life of the glass. Specifically, the glass first needs to be sprayed with adhesive on a spraying machine, then dried and cured in a drying machine, and finally undergo quality inspection in an inspection machine.

[0003] Existing technology utilizes robotic arms to repeatedly grasp, move, and place glass between different machines to complete various processes. However, this method suffers from long cycle times, hindering production efficiency and thus impacting capacity. Utility Model Content

[0004] The purpose of this utility model is to provide a glass coating production line, which solves the technical problem of how to improve production efficiency and capacity.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution.

[0006] This utility model provides a glass coating production line, which includes: a conveyor unit and a feeding machine, a spraying machine, a waiting machine, a drying machine, and a testing machine arranged sequentially. The conveyor unit includes a feeding conveying mechanism, a spraying conveying mechanism, a waiting conveying mechanism, a drying conveying mechanism, and a testing conveying mechanism, which are respectively arranged sequentially on the feeding machine, the spraying machine, the waiting machine, the drying machine, and the testing machine and connected sequentially. Each conveying mechanism is used to carry glass and is configured to convey glass backward. The spraying machine includes a frame and a spray head. The spray head is located above the spraying conveying mechanism and is movable on the frame in a lifting and lowering manner and in a left-right direction.

[0007] In some embodiments of this application, two nozzles are provided, and the two nozzles are arranged sequentially on the frame.

[0008] In some embodiments of this application, the spraying conveying mechanism includes several rotating rollers arranged sequentially in front and behind and rotatably mounted on the frame. Adjacent rotating rollers are connected by a drive, and several rollers are sleeved on the rotating rollers and spaced apart in the left-right direction. The rollers are used to support the glass from below.

[0009] In some embodiments of this application, each conveying mechanism includes a plurality of rotating rollers arranged sequentially front to back, and in each conveying mechanism, adjacent two rotating rollers are connected by a drive, and the last rotating roller is connected by a drive to a rotating motor.

[0010] In some embodiments of this application, the spraying machine further includes a housing and a dust removal pipe. The housing is mounted on the frame and has a spraying chamber inside. The nozzle and the spraying conveying mechanism are both located inside the spraying chamber. Dust removal ports are provided on the front and rear sides of the housing, and the dust removal ports are respectively connected to the spraying chamber and the dust removal pipe.

[0011] In some embodiments of this application, the spraying machine further includes a first slide rail, a first sliding seat, a second slide rail, and a second sliding seat. The first slide rail extends in a left-right direction and is fixedly connected to the frame. The first sliding seat is slidably disposed on the first slide rail. The second slide rail extends vertically and is fixedly connected to the first sliding seat. The second sliding seat is slidably disposed on the second slide rail and is fixedly connected to the spray head.

[0012] In some embodiments of this application, the second sliding seat has a U-shaped structure, including a first connecting strip slidably connected to the second slide rail, a second connecting strip fixedly connected to the nozzle, and a third connecting strip connected to the first connecting strip and the second connecting strip respectively, and the first connecting strip and the second connecting strip are spaced apart in the front-back direction; the spraying machine also includes a first positioning plate and a second positioning plate both connected to the frame, the first positioning plate is located below the first slide rail and is used to support the first slide rail, the second positioning plate extends vertically, the second positioning plate is located between the first connecting strip and the second connecting strip, and is located above the third connecting strip.

[0013] In some embodiments of this application, the spraying machine further includes a first sensor, a first sensing plate, a second sensor, and a second sensing plate; the first slide rail is connected to the first sensor, and the first sliding seat is connected to the first sensing plate. When the first sliding seat slides relative to the first slide rail, it causes the first sensing plate to move closer to or further away from the first sensor in the left-right direction; the second slide rail is connected to the second sensor, and the second sliding seat is connected to the second sensing plate. When the second sliding seat slides relative to the second slide rail, it causes the second sensing plate to move closer to or further away from the second sensor in the vertical direction.

[0014] In some embodiments of this application, the drying machine includes a drying frame, a drying shell, a heating plate, and a door; the drying shell is mounted on the drying frame and has a drying chamber inside, the top of the drying chamber has an opening, the heating plate and the drying conveying mechanism are both located inside the drying chamber, and the heating plate is located below the drying conveying mechanism; the door is hinged to the shell and is used to close or open the opening.

[0015] In some embodiments of this application, the testing machine includes a testing frame, a testing housing, and a testing lamp. The testing housing is mounted on the testing frame and has a testing chamber inside. The testing chamber has a discharge window on its rear side and testing windows on its left and / or right sides. The testing lamp and the testing conveying mechanism are both located inside the testing chamber, and the testing lamp emits light towards the testing conveying mechanism.

[0016] As can be seen from the above technical solution, the embodiments of this utility model have at least the following advantages and positive effects:

[0017] In the glass coating production line of this embodiment, glass is first fed onto a feeding conveyor mechanism on a feeding machine platform, and then conveyed backward by the feeding conveyor mechanism to a spraying conveyor mechanism on a spraying machine platform. The nozzle of the spraying machine platform is used to spray adhesive onto the surface of the glass on the spraying conveyor mechanism. Specifically, the nozzle height is adjusted by raising and lowering relative to the frame to meet actual spraying requirements. The nozzle moves left and right relative to the frame so that the spraying trajectory of the nozzle can dynamically cover the width of the glass. The backward conveying of the glass by the spraying conveyor mechanism ensures that the spraying trajectory of the nozzle can dynamically cover the length of the glass, thereby completing the full spraying of the glass surface. Subsequently, the sprayed glass is conveyed backward to a waiting conveyor mechanism on a waiting machine platform for waiting buffering, thereby ensuring that the adhesive can spread naturally on the surface of the glass. Subsequently, the waiting conveyor transports the glass backward to the drying conveyor on the drying machine platform for drying and curing. Finally, the dried and cured glass is conveyed backward to the inspection conveyor on the inspection machine platform for quality inspection, thus completing the entire glass coating process. This glass coating production line, through the natural connection between the various conveyor mechanisms on each machine platform, can continuously complete different processes. Compared with the existing technology that uses robotic arms to move glass between different machines, it can shorten the cycle time, thereby improving production efficiency and capacity. Attached Figure Description

[0018] The various objectives, features, and advantages of this invention will become more apparent from the following detailed description of preferred embodiments in conjunction with the accompanying drawings. The drawings are merely illustrative illustrations of the invention and are not necessarily drawn to scale. In the drawings, the same reference numerals always denote the same or similar parts. Wherein:

[0019] Figure 1 This is a schematic diagram of a glass coating production line according to an exemplary embodiment.

[0020] Figure 2 yes Figure 1 A sectional view.

[0021] Figure 3 yes Figure 2 A sectional view from another location.

[0022] Figure 4 yes Figure 2 A cross-sectional view from another angle.

[0023] Figure 5 yes Figure 2 An enlarged schematic diagram of region A in the middle.

[0024] Figure 6 yes Figure 3 A magnified view of region B in the middle.

[0025] Figure 7 yes Figure 5 An enlarged diagram from another perspective.

[0026] The annotations in the attached figures are explained as follows:

[0027] 1. Conveyor unit; 11. Feeding conveyor mechanism; 12. Spraying conveyor mechanism; 121. Rotary roller; 122. Roller; 123. Rotary motor; 13. Waiting material conveyor mechanism; 14. Drying conveyor mechanism; 15. Inspection conveyor mechanism;

[0028] 2. Feeding machine;

[0029] 3. Spraying machine platform; 31. Frame; 32. Spray nozzle; 33. Housing; 331. Dust collection port; 34. Dust collection pipe; 35. Spraying chamber; 36. First slide rail; 37. First sliding seat; 38. Second slide rail; 39. Second sliding seat; 391. First connecting strip; 392. Second connecting strip; 393. Third connecting strip; 310. First positioning plate; 320. Second positioning plate;

[0030] 4. Material waiting machine;

[0031] 5. Drying machine platform; 51. Drying machine frame; 52. Drying shell; 53. Door; 54. Heating plate; 55. Drying chamber; 56. Opening;

[0032] 6. Testing machine; 61. Testing frame; 62. Testing housing; 63. Testing chamber. Detailed Implementation

[0033] Although the present invention can be readily embodied in various forms, only some specific embodiments are shown in the accompanying drawings and will be described in detail in this specification. It is understood that this specification should be regarded as an exemplary illustration of the principles of the present invention and is not intended to limit the present invention to what is described herein.

[0034] Therefore, a feature pointed out in this specification is used to describe one feature of one embodiment of the present invention, and does not imply that every embodiment of the present invention must have the described feature. Furthermore, it should be noted that this specification describes many features. Although certain features may be combined to illustrate possible system designs, these features may also be used in other combinations not explicitly stated. Therefore, unless otherwise stated, the described combinations are not intended to be limiting.

[0035] In the embodiments shown in the accompanying drawings, the directional indications (such as up, down, left, right, front, and back) used to explain the structure and movement of the various elements of this invention are relative rather than absolute. These descriptions are appropriate when these elements are in the positions shown in the drawings. If the descriptions of the positions of these elements change, these directional indications also change accordingly.

[0036] Please see Figures 1 to 3 The glass coating production line provided in one embodiment of this utility model mainly includes a conveyor unit 1 and a feeding platform 2, a spraying platform 3, a waiting platform 4, a drying platform 5, and a testing platform 6 arranged sequentially. The conveyor unit 1 includes a feeding conveying mechanism 11, a spraying conveying mechanism 12, a waiting conveying mechanism 13, a drying conveying mechanism 14, and a testing conveying mechanism 15, which are arranged sequentially on the feeding platform 2, the spraying platform 3, the waiting platform 4, the drying platform 5, and the testing platform 6 and connected sequentially. Each conveying mechanism is used to carry glass and is configured to convey glass backward. The spraying platform 3 includes a frame 31 and a spray head 32. The spray head 32 is located above the spraying conveying mechanism 12 and is mounted on the frame 31 in a way that allows it to be raised, lowered, and moved in the left and right directions.

[0037] In the glass coating production line of this embodiment, the glass is first fed onto the feeding conveyor 11 on the feeding machine 2, and then conveyed backward by the feeding conveyor 11 to the spraying conveyor 12 on the spraying machine 3. The nozzle 32 of the spraying machine 3 is used to spray adhesive onto the surface of the glass on the spraying conveyor 12. Specifically, the nozzle 32 is raised and lowered relative to the frame 31 to adjust the height of the nozzle 32 to meet the actual spraying requirements. The nozzle 32 moves left and right relative to the frame 31 so that the spraying trajectory of the nozzle 32 can dynamically cover the width of the glass. The backward conveying of the glass by the spraying conveyor 12 ensures that the spraying trajectory of the nozzle 32 can dynamically cover the length of the glass, thereby completing the full spraying of the glass surface. Subsequently, the sprayed glass is conveyed backward to the waiting conveyor 13 on the waiting machine 4 for waiting buffering, thereby ensuring that the adhesive can spread naturally on the surface of the glass. Subsequently, the waiting conveyor 13 transports the glass backward to the drying conveyor 14 located on the drying machine 5 for drying and curing. Finally, the dried and cured glass is transported backward to the inspection conveyor 15 located on the inspection machine 6 for quality inspection, thus completing the entire glass coating process. This glass coating production line, through the natural connection between the various conveyor mechanisms on each machine, can continuously complete different processes. Compared with the existing technology that uses robotic arms to move glass between different machines, it can shorten the cycle time, thereby improving production efficiency and capacity.

[0038] It should be noted that, in order to ensure comprehensive coating of the glass surface, the nozzle 32 in the prior art needs to have three degrees of freedom in the front-back, up-down, and left-right directions, which is relatively complex in structural design and has a high cost. In the glass coating production line of this utility model embodiment, since the coating conveying mechanism 12 can convey glass in the front-back direction, the nozzle 32 only needs to have degrees of freedom in the up-down and left-right directions, thereby simplifying the structure and saving costs.

[0039] Please see Figure 2 and Figure 3 In a specific embodiment, two nozzles 32 are provided, and the two nozzles 32 are arranged sequentially on the frame 31. The two nozzles 32 work in parallel, which can effectively improve the spraying efficiency. The front-to-back arrangement of the two nozzles 32 can avoid the limitations or interference that would occur if the two nozzles 32 and related components were located on the same side, and can effectively distribute the load. On the other hand, if one nozzle 32 fails, the other nozzle 32 can continue to perform the spraying task, reducing the risk of downtime and thus ensuring production efficiency.

[0040] Please see Figures 1 to 4In a specific embodiment, the spraying conveying mechanism 12 includes several rotating rollers 121 arranged sequentially front to back and rotatably mounted on the frame 31. Adjacent rollers 121 are connected by a synchronous belt drive, and several rollers 122 spaced apart in the left-right direction are fitted on the rollers 121. The rollers 122 are used to support the glass from below. When driven, the multiple rollers 121 can rotate synchronously, and the friction between the rollers 122 and the glass can drive the glass to move smoothly backward, thereby realizing the conveying function of the spraying conveying mechanism 12. It has the advantages of simple structure and easy maintenance.

[0041] Please see Figures 1 to 4 as well as Figure 6 In a specific embodiment, each conveying mechanism includes several rollers 121 arranged sequentially front to back. In each conveying mechanism, adjacent rollers 121 are connected by a synchronous belt drive, and the last roller 121 is connected to a rotating motor 123. The rotating motor 123 drives the last roller 121 to rotate, and transmits power to the front rollers 121 step by step through synchronization, thereby ensuring that the glass is conveyed smoothly.

[0042] Please see Figures 1 to 4 In a specific embodiment, the spraying machine 3 also includes a housing 33 and a dust removal pipe 34. The housing 33 is mounted on the frame 31 and has a spraying chamber 35 inside. The nozzle 32 and the spraying conveying mechanism 12 are both located inside the spraying chamber 35. Dust removal ports 331 are provided on the front and rear sides of the housing 33, and the dust removal ports 331 are respectively connected to the spraying chamber 35 and the dust removal pipe 34. The housing 33 is used for protection to ensure that the process of spraying adhesive on the glass surface is not affected by external factors. The dust removal ports 331 are connected to the spraying chamber 35 and the dust removal pipe 34. Through the setting of the dust removal ports 331 and the dust removal pipe 34, the spraying chamber 35 can be dusted before spraying adhesive, avoiding dust adhesion that affects the yield.

[0043] In a specific embodiment, the front and rear sides of the housing 33 are provided with a number of dust removal ports 331 arranged sequentially and spaced apart in the left-right direction, so as to quickly and evenly remove dust from the spraying chamber 35.

[0044] In this embodiment, there are four dust removal ports 331, which are arranged in pairs. The dust removal pipe 34 includes two sub-pipes and one main pipe. The two ends of each sub-pipe are respectively connected to the two dust removal ports 331 arranged in pairs. The two ends of the main pipe are respectively connected to the middle sections of the two sub-pipes, and the middle section of the main pipe is connected to the dust removal equipment. Thus, the dust removal of the spraying chamber 35 by multiple dust removal ports 331 can be controlled by the same dust removal equipment.

[0045] In a further embodiment, the dust removal port 331 is located below the spraying conveying mechanism 12, and the dust removal pipe 34 is located in the loading machine platform 2 and the waiting machine platform 4, respectively, and is located below the loading conveying mechanism 11 and the waiting conveying mechanism 13.

[0046] Please see Figure 5 and Figure 7 In one embodiment, the spray nozzle 32 is mounted on the frame 31 and is movable in both vertical and horizontal directions. The spraying machine 3 further includes a first slide rail 36, a first sliding seat 37, a second slide rail 38, and a second sliding seat 39. The first slide rail 36 extends in the horizontal direction and is fixedly connected to the frame 31. The first sliding seat 37 is slidably mounted on the first slide rail 36. The second slide rail 38 extends vertically and is fixedly connected to the first sliding seat 37. The second sliding seat 39 is slidably mounted on the second slide rail 38 and is fixedly connected to the spray nozzle 32. When the first sliding seat 37 slides on the first slide rail 36, it can drive the second slide rail 38, the second sliding seat 39, and the spray nozzle 32 to move in the horizontal direction. When the second sliding seat 39 slides on the second slide rail 38, it can drive the spray nozzle 32 to move up and down. This achieves the movable characteristic of the spray nozzle 32 in two degrees of freedom, and the structure is relatively compact and simple.

[0047] In a specific embodiment, the second sliding seat 39 has a U-shaped structure, including a first connecting strip 391 slidably connected to the second slide rail 38, a second connecting strip 392 fixedly connected to the nozzle 32, and a third connecting strip 393 connected to the first connecting strip 391 and the second connecting strip 392 respectively, with the first connecting strip 391 and the second connecting strip 392 spaced apart in the front-to-back direction. The spraying machine base 3 also includes a first positioning plate 310 and a second positioning plate 320, both connected to the frame 31. The first positioning plate 310 is located below the first slide rail 36 and is used to support the first slide rail 36. The second positioning plate 320 extends vertically, is located between the first connecting strip 391 and the second connecting strip 392, and is located above the third connecting strip 393.

[0048] The first positioning plate 310 is used to provide a fixed base, and the second positioning plate 320 is used to assist in positioning the up-down and left-right movements of the second sliding seat 39, thereby improving the precision and accuracy of the movement. The first positioning plate 310 and the second positioning plate 320 work together to form a closed shield at the sliding connection between the first slide rail 36 and the first sliding seat 37 and the second slide rail 38 and the second sliding seat 39, so as to avoid the adverse effects of glue splashing during the glue spraying process.

[0049] Please see Figure 5 and Figure 7In a specific embodiment, the spraying machine 3 further includes a first sensor, a first sensing plate, a second sensor, and a second sensing plate. A first slide rail 36 is connected to the first sensor, and a first sliding seat 37 is connected to the first sensing plate. When the first sliding seat 37 slides relative to the first slide rail 36, it causes the first sensing plate to move closer to or further away from the first sensor in the left-right direction. A second slide rail 38 is connected to the second sensor, and a second sliding seat 39 is connected to the second sensing plate. When the second sliding seat 39 slides relative to the second slide rail 38, it causes the second sensing plate to move closer to or further away from the second sensor in the vertical direction.

[0050] By coordinating the sensing plate and the sensor, it is possible to determine whether there is an error in the movement of the sliding seat relative to the slide rail. Subsequently, by supplementing the error, the displacement accuracy can be improved, thereby improving the movement accuracy of the nozzle 32.

[0051] In this embodiment, both the first and second sensors are photoelectric switches, and include a transmitter and a receiver. When the sensing plate moves between the transmitter and the receiver, it can block the light path to determine whether the sliding seat has slid in place relative to the slide rail, thereby improving the displacement accuracy.

[0052] Please see Figures 1 to 3 In a specific embodiment, the drying machine platform 5 includes a drying frame 51, a drying housing 52, a heating plate 54, and a door 53. The drying housing 52 is mounted on the frame 31 and contains a drying chamber 55. The top of the drying chamber 55 has an opening 56. The heating plate 54 and the drying conveying mechanism 14 are both located inside the drying chamber 55, with the heating plate 54 located below the drying conveying mechanism 14. The door 53 is hinged to the housing 33 and is used to close or open the opening 56, thus providing a practical implementation method for the drying machine platform 5. Specifically, when the door 53 closes the opening 56, it facilitates heat concentration and improves the drying and curing efficiency of the glass. When the door 53 opens the opening 56, it facilitates temperature adjustment inside the drying chamber 55 and allows observation of the drying and curing status through the opening 56. Since the door 53 is hinged to the housing 33, the opening and closing of the opening 56 is switched by rotation, making operation relatively quick and convenient.

[0053] In a further embodiment, the door body 53 and the housing 33 are respectively hinged to both ends of the connecting rod, so as to limit the rotation range of the door body 53 relative to the housing 33 by means of the connecting rod.

[0054] In a specific embodiment, the inspection machine 6 includes an inspection frame 61, an inspection housing 62, and an inspection lamp. The inspection housing 62 is mounted on the inspection frame 61 and contains an inspection chamber 63. The rear side of the inspection chamber 63 has a discharge window, and inspection windows are opened on the left and / or right sides of the inspection chamber 63. The inspection lamp and the inspection conveying mechanism 15 are both located inside the inspection chamber 63, and the inspection lamp emits light towards the inspection conveying mechanism 15. The inspection lamp directly illuminates the glass surface for quick identification of adhesive defects. The operator can observe the illumination of the glass surface by the inspection lamp through the inspection windows. When the inspection conveying mechanism 15 conveys the glass backward, the glass can be sent out through the discharge window.

[0055] In a further embodiment, the inspection probe is located above the inspection conveying mechanism 15 and at the front of the inspection chamber 63, with the probe angled downwards. This position and arrangement of the inspection probe optimizes the illumination angle, allowing operators to more clearly and accurately observe the adhesive application on the glass surface.

[0056] In the above embodiment, the material waiting machine 5 includes a material waiting frame and a material waiting shell. The material waiting shell is provided with a material waiting chamber, and the material waiting conveying mechanism 13 is located in the material waiting chamber.

[0057] Although the present invention has been described with reference to several typical embodiments, it should be understood that the terminology used is descriptive and exemplary, and not restrictive. Since the present invention can be embodied in many forms without departing from the spirit or essence of the invention, it should be understood that the above embodiments are not limited to any of the foregoing details, but should be interpreted broadly within the spirit and scope defined by the appended claims. Therefore, all variations and modifications falling within the scope of the claims or their equivalents should be covered by the appended claims.

Claims

1. A glass coating production line, characterized in that, The system includes a conveyor unit and a feeding machine, a spraying machine, a waiting machine, a drying machine, and a testing machine arranged sequentially. The conveyor unit includes a feeding conveying mechanism, a spraying conveying mechanism, a waiting conveying mechanism, a drying conveying mechanism, and a testing conveying mechanism, which are respectively arranged on the feeding machine, the spraying machine, the waiting machine, the drying machine, and the testing machine and connected sequentially. Each of the conveying mechanisms is used to carry glass and is configured to convey glass backward. The spraying machine includes a frame and a spray head. The spray head is located above the spraying conveying mechanism and is mounted on the frame in a way that allows it to be raised, lowered, and moved in the left and right directions.

2. The glass coating production line according to claim 1, characterized in that, The machine has two nozzles, which are arranged sequentially on the frame.

3. The glass coating production line according to claim 1, characterized in that, The spraying and conveying mechanism includes several rotating rollers arranged sequentially in front and behind and rotatably mounted on the frame. Adjacent rotating rollers are connected by a drive, and several rollers are fitted on the rotating rollers and spaced apart in the left and right direction. The rollers are used to support the glass from below.

4. The glass coating production line according to claim 1, characterized in that, Each of the conveying mechanisms includes several rotating rollers arranged sequentially front to back. In each of the conveying mechanisms, adjacent rotating rollers are connected by a drive, and the last rotating roller is connected by a drive to a rotating motor.

5. The glass coating production line according to claim 1, characterized in that, The spraying machine also includes a housing and a dust removal pipe. The housing is mounted on the frame and has a spraying chamber inside. The spray nozzle and the spraying conveying mechanism are both located in the spraying chamber. Dust removal ports are opened on the front and rear sides of the housing, and the dust removal ports are respectively connected to the spraying chamber and the dust removal pipe.

6. The glass coating production line according to claim 1, characterized in that, The spraying machine also includes a first slide rail, a first sliding seat, a second slide rail, and a second sliding seat. The first slide rail extends in the left-right direction and is fixedly connected to the frame. The first sliding seat is slidably disposed on the first slide rail. The second slide rail extends vertically and is fixedly connected to the first sliding seat. The second sliding seat is slidably disposed on the second slide rail and is fixedly connected to the spray head.

7. The glass coating production line according to claim 6, characterized in that, The second sliding seat has a U-shaped structure, including a first connecting strip that is slidably connected to the second slide rail, a second connecting strip that is fixedly connected to the nozzle, and a third connecting strip that is connected to the first connecting strip and the second connecting strip respectively, and the first connecting strip and the second connecting strip are spaced apart in the front-back direction; The spraying machine also includes a first positioning plate and a second positioning plate, both connected to the frame. The first positioning plate is located below the first slide rail and is used to support the first slide rail. The second positioning plate extends vertically and is located between the first connecting strip and the second connecting strip, and above the third connecting strip.

8. The glass coating production line according to claim 7, characterized in that, The spraying machine also includes a first sensor, a first sensing plate, a second sensor, and a second sensing plate; The first slide rail is connected to the first sensor, and the first sliding seat is connected to the first sensing plate. When the first sliding seat slides relative to the first slide rail, it causes the first sensing plate to move closer to or further away from the first sensor in the left and right directions. The second slide rail is connected to the second sensor, and the second sliding seat is connected to the second sensing plate. When the second sliding seat slides relative to the second slide rail, it causes the second sensing plate to move closer to or further away from the second sensor in the vertical direction.

9. The glass coating production line according to claim 1, characterized in that, The drying machine includes a drying frame, a drying shell, a heating plate, and a door. The drying housing is mounted on the drying frame and has a drying chamber inside. The top of the drying chamber has an opening. The heating plate and the drying conveying mechanism are both located inside the drying chamber, with the heating plate located below the drying conveying mechanism. The door is hinged to the housing and is used to close or open the opening.

10. The glass coating production line according to claim 1, characterized in that, The testing machine includes a testing frame, a testing housing, and a testing light. The testing housing is mounted on the testing frame and has a testing chamber inside. The testing chamber has a discharge window on its rear side and testing windows on its left and / or right sides. The testing light and the testing conveying mechanism are both located inside the testing chamber, and the testing light shines towards the testing conveying mechanism.

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