Production method of concave embossed glass

Abstract

The present invention discloses a production method of concave frosted glass. The method is made by using the etching mechanism of concave frosted glass. The etching machine of concave frosted glass includes a numerical control bed body. A liquid injection station for supplying etching liquid is arranged on one side of the numerical control bed body. A first joint connected to the liquid injection station through a pipe is arranged in an extension cylinder in the numerical control bed body. An installation seat is sleeved on the outer side of the lower end of the extension cylinder. An etching spray head communicated with the first joint is arranged in the middle of the installation seat. A suction cup assembly is sleeved on the outer side of the lower end of the installation seat, and the lower side of the suction cup assembly is adsorbed and connected to the surface of the glass to be processed. A liquid pumping assembly for pumping etching waste liquid is arranged in the installation seat. An air supplement and pressure maintaining assembly for making the working cavity in a fixed negative pressure state is arranged on one side of the installation seat. The present invention can make the production of concave frosted glass more convenient without using a screen printing plate and ink, reduce the production cost of concave frosted glass, and the etched pattern is more delicate and accurate, facilitating the personalized customization of users.

Description

Technical Field

[0001] The present invention relates to the technical field of glass deep processing, and specifically to a production method of concave embossed glass. Background Art

[0002] Concave embossed glass is a convex embossed pattern glass, including a surface layer and a bottom layer. At least one convex embossed pattern is provided on the bottom layer, and convex embossed silk floss ice flowers are provided on the outer edge of the convex embossed pattern. Concave embossed glass has the characteristics of being beautiful, generous, vivid and lifelike in pattern. At the same time, the convex embossed pattern can be designed according to the user's use, expanding its scope of use. The existing production process of concave embossed glass is mostly as follows: first, clean and dry the flat glass, then screen-print acid-resistant ink on the cleaned flat glass, then immerse the flat glass after the ink is dried in the etching solution, and finally clean the flat glass soaked in the etching solution. However, there are some deficiencies in this process. For example, a screen printing plate needs to be prepared in the early stage of production. At the same time, one screen printing plate can only print convex embossed patterns. At the same time, with the individual needs of users for the styles of convex embossed patterns, the cost of producing concave embossed glass increases due to the need to make personalized screen printing plates. In addition, the ink used in the printing process is not environmentally friendly enough, and a large amount of waste water is generated in the subsequent cleaning process. Summary of the Invention

[0003] The purpose of the present invention is to provide a production method of concave embossed glass to solve the problems raised in the above background art.

[0004] To achieve the above purpose, the present invention provides the following technical solution: A production method of concave embossed glass, which is made by using an etching machine for concave embossed glass. The etching machine for concave embossed glass includes a numerical control bed body. A liquid injection station for supplying etching solution is provided on one side of the numerical control bed body. A first joint connected to the liquid injection station through a pipe is arranged in an extension cylinder in the numerical control bed body. An installation seat is sleeved on the outer side of the lower end of the extension cylinder. An etching nozzle communicated with the first joint is arranged in the middle of the installation seat. A suction cup assembly is sleeved on the outer side of the lower end of the installation seat. The lower side of the flap in the suction cup assembly is adsorbed and connected to the surface of the glass to be processed, and the diameter of the through hole of the flap is the same as the diameter of the nozzle of the etching nozzle. A liquid pumping assembly for pumping etching waste liquid is arranged in the installation seat, and the flow rate of the liquid pumping assembly is greater than the flow rate of the liquid injection station. A gas supplementing and pressure maintaining assembly for making the working cavity in a fixed negative pressure state is arranged on one side of the installation seat.

[0005] Preferably, the suction cup assembly consists of a ferrule, a rubber connecting sleeve, a flap and a lubricating pump. The lower end of the mounting seat is snap-fitted with a ferrule, the lower end of the ferrule is connected with a rubber connecting sleeve, and the flap is arranged at the lower end of the rubber connecting sleeve. Annular grooves are evenly formed on the lower surface of the flap, and communicating grooves communicating with the annular grooves are evenly formed on the lower surface of the flap. A conveying channel communicating with the communicating grooves is formed in the ferrule and the rubber connecting sleeve. A lubricating pump is arranged on one side of the mounting seat, and the lubricating pump is connected to the conveying channel through a pipe.

[0006] Preferably, the liquid pumping assembly includes a liquid collecting ring, a liquid delivery pipe, an ejecting spring, a liquid guiding socket, a second joint, a waste liquid collecting box and a liquid pumping pump. Guide insertion holes are symmetrically formed at the upper end of the mounting seat, and liquid delivery pipes are inserted into the guide insertion holes. The lower ends of the two liquid delivery pipes are connected with a liquid collecting ring, and the lower side of the liquid collecting ring is attached to the upper side of the adsorption flap. An ejecting spring is arranged at the upper end of the liquid delivery pipe, a liquid guiding insertion pipe matching with the liquid delivery pipe is inserted into the ejecting spring, and the upper end of the liquid guiding insertion pipe is threadedly connected with the mounting seat. Second joints communicating with the liquid guiding insertion pipes are symmetrically arranged in the extension cylinder. A waste liquid collecting box is arranged on one side of the numerical control machine tool body, a liquid pumping pump is arranged on one side of the waste liquid collecting box, and the suction port end of the liquid pumping pump is connected to the second joint through a pipe.

[0007] Preferably, the air supplementing and pressure maintaining assembly includes an air guide pipe, a mounting frame, a standby pressure spring, a valve core, a valve seat, an air leakage cover and a filter cotton sheet. An air guide pipe is communicated and arranged on one side of the mounting seat, and a mounting frame is arranged in the air guide pipe. A standby pressure spring is arranged at the upper part of the mounting frame, a valve core is inserted into the upper end of the standby pressure spring, a valve seat is sleeved on the outer side of the valve core, an air leakage cover fixedly connected with the air guide pipe is sleeved on the outer side of the valve seat, and a filter cotton sheet is arranged in the air leakage cover.

[0008] Preferably, the numerical control machine tool body includes a machine body, a bearing platform, a lifting cantilever, an extension cylinder and a control panel. A bearing platform is arranged at the upper part of the machine body, a lifting cantilever is arranged on one side of the machine body, an extension cylinder is arranged at one end of the lifting cantilever, and the extension cylinder is vertically arranged with the clamping side surface of the bearing platform. A control panel is arranged on one side of the machine body, and the control panel, the liquid injection station and the liquid pumping assembly are electrically connected.

[0009] Preferably, the clamping side surface of the bearing platform forms an angle of 0 to 30 degrees with the horizontal plane.

[0010] The method specifically includes the following steps:

[0011] First step, prepare a mixed etching solution of 15%-38% sulfuric acid and 20%-40% hydrofluoric acid and inject it into the liquid injection station, and at the same time inject a lubricant into the lubricating pump;

[0012] Step 2: Clean the flat glass, fix the flat glass onto the bearing platform, start the numerical control machine tool body and adjust the height of the lifting cantilever so that the lower end of the suction cup assembly fits the upper surface of the flat glass;

[0013] Step 3: Pick one end of the processed surface of the flat glass as the starting coordinate point, and input the pattern track of the concave frosted glass to be manufactured into the control panel in a zigzag walking mode;

[0014] Step 4: Start the program in the control panel, so that the etching nozzle travels according to the walking track program input into the control panel. At the same time, the control panel controls the lubricating pump to apply lubricant to the surface of the flat glass that fits the flap. The control panel controls the liquid injection station to inject etching liquid into the etching nozzle for etching. At the same time, the control panel controls the liquid extraction pump to suck the waste liquid generated by etching;

[0015] Step 5: After the program of the numerical control machine tool body runs out, adjust the lifting cantilever to make the etching nozzle separate from the etched glass, and wash the processed concave frosted glass with clean water.

[0016] Compared with the prior art, the present invention provides a production method of concave frosted glass, which has the following beneficial effects: The present invention provides etching liquid to the etching nozzle through the set liquid injection station, so that the etching liquid is sprayed on the surface of the flat glass to be processed. At the same time, the etching points are precisely controlled by the numerical control machine tool body, so that the etched pattern is more delicate, and it is convenient for users' personalized customization. At the same time, through the suction cup assembly, the etching is carried out in an independent sealed space, so as to prevent the etching liquid sprayed from the etching nozzle from splashing to other unetched parts, and avoid the volatilization and waste consumption of hydrofluoric acid in the air in the traditional production method. At the same time, through the liquid extraction assembly, the waste liquid generated after the corrosion reaction is quickly pumped out and discharged, avoiding the waste liquid covering the glass surface and hindering the corrosion reaction of the etching liquid, accelerating the efficiency of the corrosion reaction, improving the production efficiency of the concave frosted glass. At the same time, compared with the traditional production method of concave frosted glass, the existing production method does not need to use silk screen printing plates and ink, making the production of concave frosted glass more convenient, and at the same time reducing the production cost of concave frosted glass. Description of the Drawings

[0017] Figure 1 is the front view of the present invention;

[0018] Figure 2 is the left partial cross-sectional view of the present invention;

[0019] Figure 3 is the partial cross-sectional structure schematic diagram of the mounting seat in the present invention;

[0020] Figure 4 is Figure 1 the enlarged structure schematic diagram of part A in;

[0021] Figure 5 For Figure 3 Schematic diagram of the enlarged structure of part B in

[0022] Figure 6 This is the flap bottom view of the suction cup assembly in the present invention.

[0023] In the figure: 1, CNC machine tool body; 10, machine body; 11, bearing platform; 12, lifting cantilever; 13, extension cylinder; 14, control panel; 2, liquid injection station; 3, first joint; 4, mounting seat; 5, etching nozzle; 6, suction cup assembly; 60, ferrule; 61, rubber connecting sleeve; 62, flap; 620, annular groove; 621, communicating groove; 63, lubricating pump; 7, liquid pumping assembly; 70, liquid collecting ring; 71, liquid delivery pipe; 72, ejecting spring; 73, liquid guiding socket; 74, second joint; 75, waste liquid collection box; 76, liquid pumping pump; 8, air supplement and pressure maintaining assembly; 80, air guiding pipe; 81, mounting frame; 82, backup pressure spring; 83, valve core; 84, valve seat; 85, air leakage cover; 86, filter cotton sheet; 9, conveying channel. Specific embodiments

[0024] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0025] Embodiment 1

[0026] Please refer to Figures 1 - 6, an embodiment of the production method of the concave embossed glass provided by the present invention: A production method of concave embossed glass, which is made by using the etching mechanism of concave embossed glass. The etching machine of concave embossed glass includes a numerical control bed body 1. A liquid injection station 2 for supplying etching liquid is arranged on one side of the numerical control bed body 1. A first joint 3 connected to the liquid injection station 2 through a pipe is arranged in an extension cylinder 13 in the numerical control bed body 1. An installation seat 4 is sleeved outside the lower end of the extension cylinder 13. An etching spray head 5 communicated with the first joint 3 is arranged in the middle of the installation seat 4, so that the liquid injection station 2 can provide the etching liquid for corroding flat glass for the etching spray head 5. A bearing platform 11 is arranged on the upper part of the machine body 10 in the numerical control bed body 1, and the clamping side surface of the bearing platform 11 is at an angle of 30 degrees with the horizontal plane. A lifting cantilever 12 is arranged on one side of the machine body 10. One end of the lifting cantilever 12 is provided with an extension cylinder 13, and the extension cylinder 13 is vertically arranged with the clamping side surface of the bearing platform 11. A control panel 14 is arranged on one side of the machine body 10. By adopting the inclined bearing platform 11, the etching liquid flows to one side, which is convenient for collecting the etching waste liquid, and the etching track is a zigzag path from bottom to top, so that the etching waste liquid is opposite to the movement direction of etching, thus avoiding the contact between the etching waste liquid and the unetched flat glass at the next position, and enabling the etching liquid sprayed by the etching spray head 5 at the next position to directly contact the glass, improving the etching efficiency of the flat glass.

[0027] A bushing 60 is clamped at the lower end of the installation seat 4. A rubber connecting sleeve 61 is connected to the lower end of the bushing 60. A flap 62 that fits the surface of the glass to be processed is connected to the lower end of the rubber connecting sleeve 61. The through-hole diameter of the flap 62 is the same as the nozzle diameter of the etching spray head 5. Annular grooves 620 are uniformly formed on the lower surface of the flap 62. Communication grooves 621 communicating with the annular grooves 620 are uniformly formed on the lower surface of the flap 62. A conveying channel 9 communicating with the communication grooves 621 is formed in the bushing 60 and the rubber connecting sleeve 61. A lubricating pump 63 is arranged on one side of the installation seat 4, and the lubricating pump 63 is connected to the conveying channel 9 through a pipe. By making the flap 62 fit the horizontal glass surface, the etching spray head 5 is in an independent sealed etching space, thus avoiding the hydrofluoric acid sprayed from the etching spray head 5 from splashing onto other unetched glass parts. At the same time, lubricant is injected into the conveying channel 9 through the lubricating pump 63. Through the guiding action of the communication grooves 621, lubricant is stored in the annular grooves 620 at the lower part of the flap 62, enabling the flap 62 to slide smoothly along the horizontal glass surface.

[0028] The upper end of the mounting base 4 is symmetrically provided with guiding jacks. A liquid infusion tube 71 is inserted into the guiding jacks. The lower ends of the two liquid infusion tubes 71 are connected to a liquid collection ring 70. The lower side of the liquid collection ring 70 is attached to the upper side of the adsorption flap 62. A top spring 72 is arranged at the upper end of the liquid infusion tube 71. A liquid guiding insertion tube 73 matching the liquid infusion tube 71 is inserted into the top spring 72. The upper end of the liquid guiding insertion tube 73 is threadedly connected to the mounting base 4. Second joints 74 communicating with the liquid guiding insertion tube 73 are symmetrically arranged in the extension cylinder 13. A waste liquid collection tank 75 is arranged on one side of the numerical control machine tool body 1. A liquid extraction pump 76 is arranged on one side of the waste liquid collection tank 75. The suction port end of the liquid extraction pump 76 is connected to the second joint 74 through a pipe. By pushing the liquid infusion tube 71 downward through the top spring 72, the liquid collection ring 70 is attached to the upper surface of the flap 62, preventing waste liquid from flowing over the liquid collection ring 70 and remaining in the etching space. Through the suction force generated by the liquid extraction pump 76, the waste liquid after the reaction of hydrofluoric acid and glass is collected into the waste liquid collection tank 75 through the liquid collection ring 70, the liquid infusion tube 71, the liquid guiding insertion sleeve 73 and the second joint 74, enabling the waste liquid to be discharged in a timely manner, thus avoiding the waste liquid covering the glass surface and hindering the newly sprayed hydrofluoric acid, accelerating the production rate of the concave-etched glass, and at the same time making the etching space in a negative pressure state, making the lower surface of the flap 62 adsorbed more tightly to the glass.

[0029] A gas guiding pipe 80 is connected and arranged on one side of the mounting base 4. An installation frame 81 is arranged in the gas guiding pipe 80. A pressure preparation spring 82 is arranged at the upper part of the installation frame 81. A valve core 83 is inserted into the upper end of the pressure preparation spring 82. A valve seat 84 is sleeved on the outer side of the upper end of the valve core 83. A leakage cover 85 fixedly connected to the gas guiding pipe 80 is sleeved on the outer side of the valve seat 84. A filter cotton sheet 86 is arranged in the leakage cover 85. When the pressure difference between the etching space and the external environment is high enough, under the action of the external atmospheric pressure, the valve core 83 is pushed downward, the valve core squeezes the pressure preparation spring 82 and disengages from the valve core 83. At the same time, the external air enters the etching space after being filtered by the filter cotton sheet 86, thus preventing the excessive pressure difference between the inside and outside from causing the adsorption of the flap 62 to the flat glass to be too tight, making the resistance small when the flap 62 slides on the glass surface, and avoiding the deformation of the rubber connecting sleeve 61 and the flap 62 when the resistance is too large. The control panel 14, the liquid injection station 2 and the liquid extraction pump 76 are electrically connected, enabling the entire etching process to work automatically according to the edited program.

[0030] The method specifically includes the following steps:

[0031] First step: Prepare a 15% sulfuric acid and 20% hydrofluoric acid mixed etching solution and inject it into the liquid injection station 2. At the same time, inject clean water into the lubricating pump 63 as a lubricant;

[0032] Step 2: Clean the flat glass with clean water, fix the cleaned flat glass onto the bearing platform 11, start the numerical control machine tool body 1, and adjust the height of the lifting cantilever 13 so that the lower end of the flap 62 fits the upper surface of the flat glass;

[0033] Step 3: Pick up one end at the lower side of the processing surface of the flat glass as the starting coordinate point, and edit the pattern of the concave embossed glass to be manufactured into a numerical control program in a zigzag walking mode, and input the program into the control panel 14;

[0034] Step 4: Start the program in the control panel 14, and the etching nozzle 5 travels according to the program input into the control panel 14. Meanwhile, the control panel 14 controls the lubricating pump 63 to inject clean water into the conveying channel 9. Through the guiding action of the communication groove 621, the annular groove 620 at the lower part of the flap 62 stores clean water, enabling the flap 62 to slide smoothly along the horizontal glass surface. At the same time, the control panel 14 controls the liquid injection station 2 to inject etching solution into the etching nozzle 5 for etching, so that the flat glass in contact with the etching solution is corroded. Meanwhile, the control panel 14 controls the liquid pumping pump 76 to suck the waste liquid generated by etching, and the waste liquid is successively collected into the waste liquid collection tank 75 through the liquid collection ring 70, the liquid conveying pipe 71, the liquid guiding socket 73 and the second joint 74.

[0035] Step 5: After the program of the numerical control machine tool body 1 runs to completion, adjust the lifting cantilever 13 to separate the etching nozzle 5 from the etched glass. After cleaning the processed concave embossed glass with clean water, remove the processed concave embossed glass from the bearing platform 11.

[0036] Embodiment 2

[0037] The clamping side of the bearing platform 11 is flush with the horizontal plane, so that the processing surface of the clamped flat glass remains horizontal.

[0038] The method specifically includes the following steps:

[0039] Step 1: Prepare a mixed etching solution of 38% sulfuric acid and 40% hydrofluoric acid and inject it into the liquid injection station 2. Meanwhile, inject lubricating oil into the lubricating pump 63 as a lubricant;

[0040] Step 2: Clean the flat glass with clean water, fix the cleaned flat glass onto the bearing platform 11, start the numerical control machine tool body 1, and adjust the height of the lifting cantilever 13 so that the lower end of the flap 62 fits the upper surface of the flat glass;

[0041] Step 3: Pick up one end of the processing surface of the flat glass as the starting coordinate point, and edit the pattern of the concave embossed glass to be manufactured into a numerical control program in a zigzag walking mode, and input the program into the control panel 14;

[0042] Step 4: Start the program in the control panel 14. The etching nozzle 5 travels according to the program input into the control panel 14. Meanwhile, the control panel 14 controls the lubricating pump 63 to inject clean water into the conveying channel 9. Due to the guiding effect of the connecting groove 621, clear water is stored in the annular groove 620 under the flap 62, enabling the flap 62 to slide smoothly along the horizontal glass surface. At the same time, the control panel 14 controls the liquid injection station 2 to inject etching solution into the etching nozzle 5 for etching, causing the flat glass in contact with the etching solution to be corroded. Meanwhile, the control panel 14 controls the liquid pumping pump 76 to suck the waste liquid generated by etching, and the waste liquid is successively collected into the waste liquid collection box 75 through the liquid collection ring 70, the liquid delivery pipe 71, the liquid guiding socket 73, and the second joint 74.

[0043] Step 5: After the program of the numerical control machine tool body 1 runs to completion, adjust the lifting cantilever 13 to separate the etching nozzle 5 from the etched glass. After cleaning the processed concave frosted glass with clean water, remove the processed concave frosted glass from the bearing platform 11.

[0044] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and without departing from the spirit or basic characteristics of the present invention, the present invention can be implemented in other specific forms. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be encompassed within the present invention. Any reference signs in the claims should not be construed as limiting the claimed rights.

[0045] In the description of the present invention, unless otherwise specified, the meaning of "a plurality" is two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation of the present invention. In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0046] In the description of the present invention, it should be noted that unless otherwise clearly specified and defined, the terms "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

Claims

1. A production method of concave embossed glass, characterized in that: The production method uses an etching machine for concave embossed glass. The etching machine for concave embossed glass includes a numerically controlled bed body (1). A liquid injection station (2) for supplying etching liquid is arranged on one side of the numerically controlled bed body (1). A first joint (3) connected to the liquid injection station (2) by a pipe is arranged in an extension cylinder (13) in the numerically controlled bed body (1). An installation seat (4) is sleeved on the outer side of the lower end of the extension cylinder (13). An etching spray head (5) communicated with the first joint (3) is arranged in the middle of the installation seat (4). A suction cup assembly (6) is sleeved on the outer side of the lower end of the installation seat (4). The lower side of a flap (62) in the suction cup assembly (6) is adsorbed and connected to the surface of the glass to be processed, and the diameter of the through hole of the flap (62) is the same as the diameter of the spray orifice of the etching spray head (5). A liquid pumping assembly (7) for pumping etching waste liquid is arranged in the installation seat (4), and the flow rate of the liquid pumping assembly (7) is greater than the flow rate of the liquid injection station (2). An air supplement and pressure maintaining assembly (8) for making the working cavity in a fixed negative pressure state is arranged on one side of the installation seat (4); The suction cup assembly (6) is composed of a ferrule (60), a rubber connecting sleeve (61), a flap (62) and a lubricating pump (63). The ferrule (60) is clamped at the lower end of the installation seat (4). The rubber connecting sleeve (61) is connected to the lower end of the ferrule (60), and the flap (62) is arranged at the lower end of the rubber connecting sleeve (61). Annular grooves (620) are uniformly formed on the lower surface of the flap (62). Communication grooves (621) communicating with the annular grooves (620) are uniformly formed on the lower surface of the flap (62). A conveying channel (9) communicated with the communication grooves (621) is formed in the ferrule (60) and the rubber connecting sleeve (61). A lubricating pump (63) is arranged on one side of the installation seat (4), and the lubricating pump (63) is connected to the conveying channel (9) by a pipe; The liquid pumping assembly (7) includes a liquid pumping pump (76). The numerically controlled bed body (1) includes a control panel (14). The production method specifically includes the following steps: First step, prepare a mixed etching liquid of 15%-38% sulfuric acid and 20%-40% hydrofluoric acid and inject it into the liquid injection station (2), and at the same time inject a lubricant into the lubricating pump (63); Second step, clean the flat glass and fix the flat glass on the bearing platform (11). Start the numerically controlled bed body (1) and adjust the height of the lifting cantilever (12) so that the lower end of the suction cup assembly (6) fits the upper surface of the flat glass; Third step, pick one end of the processing surface of the flat glass as the starting coordinate point, and input the pattern trajectory program of the concave embossed glass to be manufactured into the control panel (14) in a zigzag walking mode; Step 4: Start the program in the control panel (14), so that the etching nozzle (5) travels according to the traveling track program entered into the control panel (14). At the same time, the control panel (14) controls the lubricating pump (63) to apply lubricant to the surface of the flat glass that is in contact with the flap (62). The control panel (14) controls the liquid injection station (2) to inject etching solution into the etching nozzle (5) for etching. At the same time, the control panel (14) controls the liquid extraction pump (76) to suck the waste liquid generated by etching. Step 5: After the program of the numerical control machine tool body (1) runs to completion, adjust the lifting cantilever (12) so that the etching nozzle (5) disengages from the etched glass, and wash the processed concave-etched glass with clean water.

2. The production method of concave embossed glass according to claim 1, characterized in that: The liquid extraction assembly (7) further includes a liquid collection ring (70), a liquid delivery pipe (71), a jacking spring (72), a liquid guiding socket (73), a second joint (74), and a waste liquid collection tank (75). Guide insertion holes are symmetrically formed at the upper end of the mounting seat (4). The liquid delivery pipe (71) is inserted into the guide insertion holes. The lower ends of the two liquid delivery pipes (71) are connected to the liquid collection ring (70), and the lower side of the liquid collection ring (70) is in contact with the upper side of the adsorption flap (62). The upper end of the liquid delivery pipe (71) is provided with the jacking spring (72). A liquid guiding socket (73) matching the liquid delivery pipe (71) is inserted into the jacking spring (72), and the upper end of the liquid guiding socket (73) is threadedly connected to the mounting seat (4). Second joints (74) communicating with the liquid guiding socket (73) are symmetrically arranged in the extension cylinder (13). A waste liquid collection tank (75) is arranged on one side of the numerical control machine tool body (1). A liquid extraction pump (76) is arranged on one side of the waste liquid collection tank (75), and the suction port end of the liquid extraction pump (76) is connected to the second joint (74) through a pipe.

3. The production method of concave embossed glass according to claim 2, characterized in that: The air supplement and pressure maintaining assembly (8) includes an air guide pipe (80), a mounting frame (81), a standby pressure spring (82), a valve core (83), a valve seat (84), a leak-proof cover (85), and a filter cotton sheet (86). An air guide pipe (80) is communicated and arranged on one side of the mounting seat (4), and a mounting frame (81) is arranged in the air guide pipe (80). The standby pressure spring (82) is arranged at the upper part of the mounting frame (81). The valve core (83) is inserted into the upper end of the standby pressure spring (82). The valve seat (84) is sleeved on the outer side of the upper end of the valve core (83). The leak-proof cover (85) fixedly connected to the air guide pipe (80) is sleeved on the outer side of the valve seat (84), and a filter cotton sheet (86) is arranged in the leak-proof cover (85).

4. The production method of concave embossed glass according to claim 3, characterized in that: The numerically controlled machine body (1) further includes a machine body (10), a bearing platform (11), a lifting cantilever (12) and an extension cylinder (13). A bearing platform (11) is arranged on the upper part of the machine body (10). A lifting cantilever (12) is arranged on one side of the machine body (10). One end of the lifting cantilever (12) is provided with an extension cylinder (13), and the extension cylinder (13) is arranged perpendicular to the clamping side surface of the bearing platform (11). A control panel (14) is arranged on one side of the machine body (10), and the control panel (14), the liquid injection station (2) and the liquid pumping assembly (7) are electrically connected.

5. The production method of concave embossed glass according to claim 4, characterized in that: The clamping side surface of the bearing platform (11) forms an angle of 0 to 30 degrees with the horizontal plane.

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