A high-precision coating device for processing microcrystalline glass

Abstract

The present invention discloses a high-precision coating device for processing microcrystalline glass, which relates to the technical field of glass coating, and comprises a conveyor, and also comprises: a spraying mechanism for uniformly spraying coating liquid on the glass surface; a heating box for heating the coated glass to shape the coating liquid; a detection mechanism for detecting the thickness of the formed film; an adjustment mechanism for automatically adjusting the position of glass detection; a marking mechanism for automatically marking the position where the glass film thickness does not meet the requirements; the high-precision coating device for processing microcrystalline glass, by driving the laser thickness measuring sensor to move back and forth alternately to the left in sequence, fully detects the thickness of each position of the glass film, effectively improves the accuracy of the glass film thickness detection, and automatically marks the position where the glass film thickness does not meet the requirements, and the staff can obtain where the positions where the glass film thickness does not meet the requirements are concentrated through the marked positions, and analyze the rules.

Description

Technical Field

[0001] The present invention relates to the technical field of glass coating, and in particular to a high-precision coating device for processing microcrystalline glass. Background Art

[0002] Glass-ceramics refers to a basic glass with a specific composition that has a nucleating agent (or no nucleating agent) added. It is subjected to a crystallization heat treatment under a certain temperature regime. A large number of tiny crystals are evenly precipitated in the glass to form a dense multiphase complex of microcrystalline phase and glass phase. It is a new type of comprehensive glass for building materials. In order to improve the use of glass-ceramics, it is necessary to coat its surface.

[0003] A glass material coating sample thickness inspection device is disclosed in the patent with publication number CN216348476U. The glass material coating sample thickness inspection device comprises: a mounting frame, a first mounting assembly and a second mounting assembly, wherein the first mounting assembly and the second mounting assembly are respectively mounted inside the mounting frame, and the first mounting assembly comprises a pressure sensor and a connecting plate;

[0004] The above-mentioned related technology has the following defects: it conducts random inspection on the glass after glass coating, and does not promptly and fully test the coating thickness after the glass coating process. This method is prone to batch glass coating thickness not meeting the requirements due to process problems, resulting in a high defective rate, and it can only detect the thickness of the glass film, but cannot clearly determine which specific positions do not meet the requirements, and cannot be intuitively displayed on the glass, which is not conducive to the staff to analyze and determine the reasons why the glass film thickness does not meet the requirements. Summary of the invention

[0005] The purpose of the present invention is to provide a high-precision coating device for processing microcrystalline glass, so as to solve the problem in the prior art that the glass is sampled after coating, and the coating thickness is not fully tested in time after the glass coating process. This method is prone to batch glass coating thickness not meeting the requirements due to process problems, resulting in a high defective rate, and it can only detect the thickness of the glass film, but cannot clearly determine which specific positions do not meet the requirements, and cannot be intuitively displayed on the glass, which makes it difficult for staff to analyze and determine the reasons why the glass film thickness does not meet the requirements.

[0006] In order to achieve the above-mentioned object, the present invention provides the following technical solution: a high-precision coating device for processing microcrystalline glass, comprising a conveyor, and further comprising:

[0007] A spraying mechanism, which is arranged on the top of the conveyor and is used to spray the coating liquid evenly on the glass surface;

[0008] A heating box is installed on the top of the conveyor and is used to heat the coated glass to shape the coating liquid;

[0009] A detection mechanism, which is installed on the top of the conveyor and is used to detect the thickness of the formed film;

[0010] An adjustment mechanism, which is connected to the detection mechanism and is used to automatically adjust the position of glass detection;

[0011] The marking mechanism is connected to the detection mechanism and is used to automatically mark the position where the glass film thickness does not meet the requirements.

[0012] Further, the spraying mechanism includes a first bracket mounted on the top of the conveyor and a main flow pipe mounted on the top of the first bracket;

[0013] A plurality of branch pipes are installed at the bottom of the main pipe, and a nozzle is installed at the bottom end of each of the branch pipes.

[0014] Further, the detection mechanism includes a second bracket installed on the top of the conveyor, a support plate arranged inside the second bracket, a plurality of laser thickness sensors installed inside the support plate, and a displacement assembly for driving the support plate to move;

[0015] The plurality of laser thickness measuring sensors are arranged in sequence along the length direction of the support plate.

[0016] Further, the displacement assembly includes a screw rod rotatably connected to the inner side of the second bracket, a slide bar screwed to the outside of the screw rod, and a first motor installed on the outer wall of one side of the second bracket;

[0017] The bottom of the slide bar is fixedly connected to two connection blocks, and the support plate is arranged between the two connection blocks;

[0018] The output end of the first motor is fixedly connected to one end of the screw rod;

[0019] The inner side of the second bracket is also fixedly connected with a first guide rod, and the sliding bar is also slidably sleeved with the outer side of the first guide rod.

[0020] Furthermore, the heating box is located between the first bracket and the second bracket.

[0021] Further, the adjustment mechanism includes a plurality of fixing rods fixedly connected between the two connecting blocks, a driven rod fixedly connected to one end of the support plate, and a fixing strip fixedly connected to the outer wall of one side of the second bracket;

[0022] The support plate is slidably sleeved on the outside of a plurality of fixing rods, a spring is sleeved on the outside of the fixing rods, one end of the spring is fixedly connected to the other end of the support plate, and the other end of the spring is fixedly connected to the outer wall of the connecting block;

[0023] The other end of the driven rod is a hemispherical structure;

[0024] The fixing strip is provided with a plurality of grooves in sequence along its length direction, and the grooves are semi-cylindrical structures.

[0025] Furthermore, the marking mechanism is provided in plurality and is respectively connected to a plurality of laser thickness measuring sensors;

[0026] The marking mechanism includes a lifting block arranged below the support plate, a connecting ring fixed to one end of the lifting block, a lifting cylinder rotatably connected to the inside of the connecting ring, a lifting assembly for driving the lifting block to move up and down, and a transmission assembly for driving the lifting cylinder to rotate;

[0027] The top end of the lifting cylinder slides and extends to the inside of the support plate. The lifting cylinder is sleeved on the outside of the laser thickness sensor. A driving bar is fixedly connected to the bottom of one side of the lifting cylinder, and a marking pen is fixedly connected to the other end of the driving bar.

[0028] Further, the lifting assembly includes a transmission shaft rotatably connected to the bottom of the support plate, a reciprocating screw fixedly sleeved on the outside of the transmission shaft, and a second motor installed inside the support plate;

[0029] The lifting block is screwed to the outside of the reciprocating screw;

[0030] The outside of the output shaft of the second motor is fixedly sleeved with a driving gear, the outside of the transmission shaft is installed with a first one-way gear, and the driving gear is meshed with the first one-way gear;

[0031] The bottom of the support plate is fixedly connected with a second guide rod, and the lifting block is also slidably sleeved on the outside of the second guide rod.

[0032] Further, the transmission assembly includes a transmission sleeve rotatably connected to the bottom of the support plate and a second one-way gear mounted outside the transmission sleeve;

[0033] The second one-way gear is meshed with the driving gear;

[0034] The transmission sleeve is slidably sleeved on the outside of the lifting cylinder;

[0035] When the lifting block moves downward, the lifting cylinder is driven to slide synchronously downward along the inner wall of the transmission sleeve through the connecting ring.

[0036] Compared with the prior art, the high-precision coating device for processing microcrystalline glass provided by the present invention has the following beneficial effects:

[0037] 1. By driving the laser thickness sensor to move back and forth alternately to the left, the thickness of each position of the glass film can be fully detected, thereby effectively improving the accuracy of the glass film thickness detection and solving the problem in the prior art that the glass film thickness is not detected in time after the glass coating is formed;

[0038] 2. By automatically marking the locations where the glass film thickness does not meet the requirements, the staff can obtain the locations where the glass film thickness does not meet the requirements through the marked locations, analyze the patterns, and then help the staff determine the reasons why the glass film thickness does not meet the requirements, and analyze and come up with a rectification plan, how to adjust the position of the nozzle and the heating parameters of the heating box. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0040] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0041] Figure 2 is a schematic diagram of the internal structure of the second bracket of the present invention;

[0042] Figure 3 It is a schematic diagram of the structures of the detection mechanism, the adjustment mechanism and the marking mechanism of the present invention;

[0043] Figure 4 It is a schematic diagram of the structure of the regulating mechanism of the present invention;

[0044] Figure 5 It is a schematic diagram of the support plate and marking mechanism structure of the present invention;

[0045] Figure 6 It is a schematic diagram of the marking mechanism structure of the present invention.

[0046] Description of reference numerals:

[0047] 1. Conveyor; 2. Heating box; 3. First bracket; 4. Main pipe; 5. Diverter pipe; 6. Nozzle; 7. Second bracket; 8. Support plate; 9. Laser thickness sensor; 10. Screw rod; 11. Slide bar; 12. First motor; 13. Connecting block; 14. First guide rod; 15. Fixed rod; 16. Driven rod; 17. Fixed bar; 18. Spring; 19. Groove; 20. Lifting block; 21. Connecting ring; 22. Lifting cylinder; 23. Drive bar; 24. Marking pen; 25. Transmission shaft; 26. Reciprocating screw; 27. Second motor; 28. Driving gear; 29. ​​First one-way gear; 30. Second guide rod; 31. Transmission sleeve; 32. Second one-way gear. DETAILED DESCRIPTION

[0048] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0049] Example: See Figure 1 - Figure 6 , a high-precision coating device for processing microcrystalline glass, comprising a conveyor 1, and further comprising:

[0050] A spraying mechanism is arranged on the top of the conveyor 1 and is used to evenly spray the coating liquid on the glass surface. The spraying mechanism includes a first bracket 3 installed on the top of the conveyor 1 and a main pipe 4 installed on the top of the first bracket 3; a plurality of branch pipes 5 are installed at the bottom of the main pipe 4, and a nozzle 6 is installed at the bottom end of each of the plurality of branch pipes 5;

[0051] The glass is driven from right to left by the conveyor 1, and the coating liquid is evenly sprayed on the top of the moving glass by feeding the main pipe 4, the branch pipe 5 and the nozzle 6 in sequence;

[0052] The main pipe 4 can be eliminated so that each branch pipe 5 can be set independently. A slider is provided on the outside and sleeve of each branch pipe 5. The slider is slidably connected to the inner wall at the top of the first bracket 3. The slider can be locked by a bolt, so that the distance between each branch pipe 5 can be adjusted, and then the position of the nozzle 6 can be adjusted.

[0053] The heating box 2 is installed on the top of the conveyor 1 and is used to heat the coated glass to shape the coating liquid. The heating box 2 is located between the first bracket 3 and the second bracket 7.

[0054] A detection mechanism is installed on the top of the conveyor 1 and is used to detect the thickness of the formed film. The detection mechanism includes a second bracket 7 installed on the top of the conveyor 1, a support plate 8 arranged on the inner side of the second bracket 7, a plurality of laser thickness sensors 9 installed inside the support plate 8, and a displacement component for driving the support plate 8 to move; the plurality of laser thickness sensors 9 are arranged in sequence along the length direction of the support plate 8, and the displacement component includes a screw rod 10 rotatably connected to the inner side of the second bracket 7, a slide bar 11 screwed to the outside of the screw rod 10, and a first motor 12 installed on the outer wall of one side of the second bracket 7; two connecting blocks 13 are fixedly connected to the bottom of the slide bar 11, and the support plate 8 is arranged between the two connecting blocks 13; the output end of the first motor 12 is fixedly connected to one end of the screw rod 10; a first guide rod 14 is also fixedly connected to the inner side of the second bracket 7, and the slide bar 11 is also slidably sleeved with the outside of the first guide rod 14;

[0055] After the conveyor 1 drives the entire piece of glass to completely enter the second bracket 7, the first motor 12 is controlled to drive the screw 10 to intermittently rotate forward, and the slide bar 11 is driven to intermittently move to the left along the outside of the first guide rod 14, that is, it pauses every time it moves a certain distance. When the slide bar 11 pauses, the thickness of each position of the glass film is measured by each laser thickness sensor 9;

[0056] When the slide bar 11 moves to the left end of the first guide rod 14, the thickness detection of the entire glass film is completed. At this time, the first motor 12 drives the screw rod 10 to reverse, driving the slide bar 11 and each laser thickness sensor 9 to reset to the right.

[0057] The adjusting mechanism is connected with the detection mechanism and is used for automatically adjusting the position of the glass detection. The adjusting mechanism includes a plurality of fixing rods 15 fixedly connected between the two connecting blocks 13, a driven rod 16 fixedly connected to one end of the support plate 8, and a fixing strip 17 fixedly connected to the outer wall of one side of the second bracket 7; the support plate 8 is slidably sleeved on the outside of the plurality of fixing rods 15, and a spring 18 is sleeved on the outside of the fixing rod 15, one end of the spring 18 is fixedly connected to the other end of the support plate 8, and the other end of the spring 18 is fixedly connected to the outer wall of the connecting block 13; the driven rod 16 is slidably arranged to penetrate the connecting block 13, and the other end of the driven rod 16 is a hemispherical structure; the fixing strip 17 is sequentially provided with a plurality of grooves 19 along its length direction, and the grooves 19 are semi-cylindrical structures;

[0058] After each laser thickness sensor 9 completes the detection of the glass film thickness at the current position, the first motor 12 is controlled to drive the lead screw 10 to rotate forward, and the slide bar 11 is driven to move a distance to the left along the outside of the first guide rod 14 and then stop, and the support plate 8 is driven to move synchronously through the connecting block 13 and the fixed rod 15, and then the driven rod 16 is driven to move from the inner wall of the groove 19 to the outer wall on one side of the fixed bar 17. In this process, the driven rod 16 will move forward along the arc surface of the groove 19, thereby driving the support plate 8 to move forward synchronously along the outside of the fixed rod 15, and the spring 18 is compressed accordingly. In this process, each laser thickness sensor 9 is driven to move forward synchronously. After the laser thickness sensor 9 moves, it detects the thickness of the glass film at the current position, and in this cycle, it moves back and forth alternately to the left in turn, and the thickness of each position of the glass film is fully detected, thereby effectively improving the accuracy of the glass film thickness detection.

[0059] The marking mechanism is connected to the detection mechanism and is used to automatically mark the position where the glass film thickness does not meet the requirements. There are multiple marking mechanisms, and they are respectively connected to multiple laser thickness sensors 9; the marking mechanism includes a lifting block 20 arranged under the support plate 8, a connecting ring 21 fixedly connected to one end of the lifting block 20, a lifting cylinder 22 rotatably connected to the inside of the connecting ring 21, a lifting component for driving the lifting block 20 to move up and down, and a transmission component for driving the lifting cylinder 22 to rotate; the top end of the lifting cylinder 22 slides and extends to the inside of the support plate 8, but does not penetrate the support plate 8. The lifting cylinder 22 is sleeved on the outside of the laser thickness sensor 9, and a driving strip 23 is fixedly connected to the bottom of one side of the lifting cylinder 22, and a marking pen 24 is fixedly connected to the other end of the driving strip 23. The lifting component includes a transmission shaft 25 rotatably connected to the bottom of the support plate 8, a fixed sleeve A reciprocating screw 26 connected to the outside of the transmission shaft 25 and a second motor 27 installed inside the support plate 8; the lifting block 20 is screwed to the outside of the reciprocating screw 26; the outside of the output shaft of the second motor 27 is fixedly sleeved with a driving gear 28, and the outside of the transmission shaft 25 is installed with a first one-way gear 29, and the driving gear 28 is meshed with the first one-way gear 29; a second guide rod 30 is fixedly connected to the bottom of the support plate 8, and the lifting block 20 is also slidably sleeved on the outside of the second guide rod 30, and the transmission assembly includes a transmission sleeve 31 rotatably connected to the bottom of the support plate 8 and a second one-way gear 32 installed on the outside of the transmission sleeve 31; the second one-way gear 32 is meshed with the driving gear 28; the transmission sleeve 31 is slidably sleeved on the outside of the lifting cylinder 22; when the lifting block 20 moves downward, it drives the lifting cylinder 22 to slide synchronously downward along the inner wall of the transmission sleeve 31 through the connecting ring 21;

[0060] When the laser thickness sensor 9 detects that the glass film at the current position does not meet the required thickness, the controller controls the second motor 27 corresponding to the laser thickness sensor 9 to drive the active gear 28 to rotate forward, and through the meshing effect between the active gear 28 and the first one-way gear 29, the transmission shaft 25 is driven to rotate. At this time, the second one-way gear 32 also rotates accordingly, but the transmission sleeve 31 does not rotate accordingly. When the transmission shaft 25 rotates, it drives the reciprocating screw 26 to rotate synchronously, and then drives the lifting block 20 to move from the top of the reciprocating screw 26 to its bottom. In this process, the lifting cylinder 22, the driving bar 23 and the marking pen 24 are driven to move downward synchronously through the connecting ring 21, so that the bottom end of the marking pen 24 abuts against the top of the glass film, and then the second motor 27 is controlled to drive the active gear 28 to reverse, and the active gear 28 is driven to rotate synchronously through the driving gear 29. The meshing effect between 28 and the second one-way gear 32 drives the transmission sleeve 31 to rotate. At this time, the first one-way gear 29 also rotates, but the transmission shaft 25 does not rotate. When the transmission sleeve 31 rotates, it drives the lifting cylinder 22 to rotate synchronously, thereby driving the marking pen 24 to make a circular motion with the lifting cylinder 22 as the center through the driving bar 23. In this process, the marking pen 24 draws a circle along the top of the glass film at the measuring position of the laser thickness sensor 9, and marks the position where the glass film thickness does not meet the requirements. The staff can obtain where the positions where the glass film thickness does not meet the requirements are concentrated through the marked positions, analyze their rules, and then help the staff to determine the reasons why the glass film thickness does not meet the requirements, and analyze and derive a rectification plan, how to adjust the position of the nozzle 6 and the heating parameters of the heating box 2.

[0061] Working principle: When in use, the conveyor 1 drives the glass to move from right to left, and feeds the main pipe 4, the branch pipe 5 and the nozzle 6 in sequence, so that the coating liquid is evenly sprayed on the top of the moving glass. When the glass completely enters the heating box 2, the conveyor 1 is controlled to stop running, and the glass film is heated and formed by the heating box 2, and then the glass is transported by the conveyor 1 to completely enter the second bracket 7, and then the conveyor 1 is controlled to stop running. After each laser thickness sensor 9 completes the detection of the glass film thickness at the current position, the first motor 12 is controlled to drive the screw rod 10 to rotate forward, and the slide bar 11 moves a distance to the left along the outside of the first guide rod 14 and then stops, and the connecting block 13 is connected to the glass film 7. The fixing rod 15 drives the support plate 8 to move synchronously, thereby driving the driven rod 16 to move from the inner wall of the groove 19 to the outer wall of one side of the fixing strip 17. In this process, the driven rod 16 moves forward along the arc surface of the groove 19, thereby driving the support plate 8 to move forward synchronously along the outside of the fixing rod 15, and the spring 18 is compressed accordingly. In this process, each laser thickness sensor 9 is driven to move forward synchronously. After the laser thickness sensor 9 moves, it detects the thickness of the glass film at the current position. In this cycle, it moves back and forth alternately to the left in turn, and fully detects the thickness of each position of the glass film, thereby effectively improving the accuracy of the glass film thickness detection. When the sensor 9 detects that the glass film at the current position does not meet the required thickness, the controller controls the second motor 27 corresponding to the laser thickness sensor 9 to drive the driving gear 28 to rotate forward, and through the meshing effect between the driving gear 28 and the first one-way gear 29, the transmission shaft 25 is driven to rotate, and the reciprocating screw 26 rotates synchronously, thereby driving the lifting block 20 to move down from the top of the reciprocating screw 26 to its bottom. In this process, the lifting cylinder 22, the driving bar 23 and the marking pen 24 are driven to move downward synchronously through the connecting ring 21, so that the bottom end of the marking pen 24 abuts against the top of the glass film, and then the second motor 27 is controlled to drive the driving gear 28 to reverse, and through the meshing effect between the driving gear 28 and the second one-way gear The meshing action between the wheels 32 drives the transmission sleeve 31 to rotate, and the transmission sleeve 31 drives the lifting cylinder 22 to rotate synchronously when rotating, thereby driving the marking pen 24 to make a circular motion with the lifting cylinder 22 as the center through the driving bar 23. In this process, the marking pen 24 draws a circle along the top of the glass film at the measurement position of the laser thickness sensor 9, and the position where the glass film thickness does not meet the requirements is marked. The staff can obtain where the positions where the glass film thickness does not meet the requirements are concentrated through the marked positions, analyze their patterns, and then help the staff to determine the reasons why the glass film thickness does not meet the requirements, and analyze and derive a rectification plan, how to adjust the position of the nozzle 6 and the heating parameters of the heating box 2.

[0062] It should be noted that the device structure and drawings of the present invention mainly describe the principle of the present invention. In terms of the technology of the design principle, the settings of the power mechanism, power supply system and control system of the device are not fully described. On the premise that the technical personnel in the field understand the principle of the above invention, the specific details of the power mechanism, power supply system and control system can be clearly known. The control method of the application document is to automatically control by a controller, and the control circuit of the controller can be realized by simple programming by the technical personnel in the field; the above only describes some exemplary embodiments of the present invention by way of explanation. Undoubtedly, for ordinary technicians in the field, the described embodiments can be modified in various different ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A high-precision coating device for processing microcrystalline glass, comprising a conveyor (1), characterized in that: Also includes: A spraying mechanism, which is arranged on the top of the conveyor (1) and is used to spray the coating liquid evenly on the glass surface; A heating box (2) is installed on the top of the conveyor (1) and is used to heat the coated glass to shape the coating liquid; A detection mechanism, which is installed on the top of the conveyor (1) and is used to detect the thickness of the formed film; An adjustment mechanism, which is connected to the detection mechanism and is used to automatically adjust the position of glass detection; A marking mechanism, which is connected to the detection mechanism and is used to automatically mark the position where the glass film thickness does not meet the requirements; The detection mechanism comprises a second bracket (7) mounted on the top of the conveyor (1), a support plate (8) arranged inside the second bracket (7), a plurality of laser thickness sensors (9) mounted inside the support plate (8), and a displacement assembly for driving the support plate (8) to move; A plurality of the laser thickness measuring sensors (9) are arranged in sequence along the length direction of the support plate (8); The displacement assembly comprises a screw rod (10) rotatably connected to the inner side of the second bracket (7), a slide bar (11) screwed to the outside of the screw rod (10), and a first motor (12) mounted on an outer wall of one side of the second bracket (7); Two connecting blocks (13) are fixedly connected to the bottom of the slide bar (11), and the support plate (8) is arranged between the two connecting blocks (13); The output end of the first motor (12) is fixedly connected to one end of the screw rod (10); The inner side of the second bracket (7) is also fixedly connected to a first guide rod (14), and the sliding bar (11) is also slidably sleeved on the outer side of the first guide rod (14); The adjustment mechanism comprises a plurality of fixing rods (15) fixedly connected between two connecting blocks (13), a driven rod (16) fixedly connected to one end of the support plate (8), and a fixing strip (17) fixedly connected to an outer wall of one side of the second bracket (7); The support plate (8) is slidably sleeved on the outside of a plurality of fixing rods (15), a spring (18) is sleeved on the outside of the fixing rods (15), one end of the spring (18) is fixedly connected to the other end of the support plate (8), and the other end of the spring (18) is fixedly connected to the outer wall of the connecting block (13); The other end of the driven rod (16) is a hemispherical structure; The fixing strip (17) is provided with a plurality of grooves (19) in sequence along its length direction, and the grooves (19) are semi-cylindrical structures; The marking mechanism is provided in plurality and is respectively connected to a plurality of laser thickness measuring sensors (9); The marking mechanism comprises a lifting block (20) arranged below the support plate (8), a connecting ring (21) fixedly connected to one end of the lifting block (20), a lifting cylinder (22) rotatably connected inside the connecting ring (21), a lifting assembly for driving the lifting block (20) to move up and down, and a transmission assembly for driving the lifting cylinder (22) to rotate; The top end of the lifting cylinder (22) slides and extends to the inside of the support plate (8); the lifting cylinder (22) is sleeved on the outside of the laser thickness sensor (9); a driving bar (23) is fixedly connected to the bottom of one side of the lifting cylinder (22); and a marking pen (24) is fixedly connected to the other end of the driving bar (23); The lifting assembly comprises a transmission shaft (25) rotatably connected to the bottom of the support plate (8), a reciprocating screw (26) fixedly sleeved on the outside of the transmission shaft (25), and a second motor (27) installed inside the support plate (8); The lifting block (20) is screwed onto the outside of the reciprocating screw (26); A driving gear (28) is fixedly sleeved on the outside of the output shaft of the second motor (27), a first one-way gear (29) is installed on the outside of the transmission shaft (25), and the driving gear (28) is meshed with the first one-way gear (29); A second guide rod (30) is fixedly connected to the bottom of the support plate (8), and the lifting block (20) is also slidably sleeved on the outside of the second guide rod (30); The transmission assembly comprises a transmission sleeve (31) rotatably connected to the bottom of the support plate (8) and a second one-way gear (32) mounted outside the transmission sleeve (31); The second one-way gear (32) meshes with the driving gear (28); The transmission sleeve (31) is slidably sleeved on the outside of the lifting cylinder (22); When the lifting block (20) moves downward, it drives the lifting cylinder (22) to slide synchronously downward along the inner wall of the transmission sleeve (31) through the connecting ring (21).

2. A high-precision coating device for processing microcrystalline glass according to claim 1, characterized in that: The spraying mechanism comprises a first bracket (3) mounted on the top of the conveyor (1) and a main flow pipe (4) mounted on the top of the first bracket (3); A plurality of branch pipes (5) are installed at the bottom of the main pipe (4), and a nozzle (6) is installed at the bottom end of each of the plurality of branch pipes (5).

3. A high-precision coating device for processing microcrystalline glass according to claim 2, characterized in that: The heating box (2) is located between the first bracket (3) and the second bracket (7).

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