A fast-paced, high-brightness, reflective, environmentally friendly aluminum mirror production line

Abstract

The present invention relates to the technical field of environmentally friendly aluminum mirror production, and particularly to a fast-beat high-brightness reflectivity environmentally friendly aluminum mirror production line, comprising a loading machine for glass plates through a manipulator, two cleaning chambers for high-pressure washing of glass plates, a coating device for coating glass plates, a spray painting chamber for spraying paint on the coated glass plates, a drying chamber for drying the sprayed glass plates, and a unloading machine for unloading glass plates through a manipulator, and the loading machine, the cleaning chamber, the coating device, the spray painting chamber, the drying chamber and the unloading machine are sequentially connected through a conveyor belt. Two glass plates are sent into the cleaning chamber by a manipulator for two washes, the two washed glass plates are sent into the coating device for coating, the coated glass plates are sent into the spray painting chamber for spraying paint, the sprayed glass plates are sent into the drying chamber for drying, and finally the two glass plates are unloaded in sequence through the unloading machine.

Description

Technical Field

[0001] The invention relates to the technical field of environmentally friendly aluminum mirror production, in particular to a fast-beat high-brightness reflectivity environmentally friendly aluminum mirror production line. Background Art

[0002] In the prior art, environmentally friendly aluminum mirror production lines generally use single-piece production lines, whose vacuum chambers and coating centers can only accommodate one piece of glass, that is, only one piece of glass can be produced at a time, and the production cycle is very slow, with a processing capacity of only 10,000 square meters per day, and one cycle (the whole process of a mirror) is 45-55 seconds; in addition, in the prior art, the brightness of the environmentally friendly aluminum mirrors produced by the single-piece production line is not high, and the reflectivity is not high (the conventional mirror surface is only 76%, and the pure silver mirror surface can only reach 85%). It is often deformed when reflecting people and the general reflectivity is not high. The main reason is that the traditional process adopts a spraying method. There are many problems caused by the spraying method. The coating layer is unevenly proportioned, resulting in black spots on the mirror, and the coating layer is accumulated, resulting in one or several places on some mirrors that look like funhouse mirrors, excessive loss of raw materials, resulting in a lot of waste, and emissions affecting environmental protection.

[0003] Therefore, it is necessary to develop a fast-paced, high-brightness, reflectivity, and environmentally friendly aluminum mirror production line that can overcome the above-mentioned defects. Summary of the invention

[0004] In view of the above problems, the present invention provides a fast-paced, high-brightness, reflectivity, and environmentally friendly aluminum mirror production line, which effectively overcomes the problems brought about by the prior art.

[0005] In order to achieve the above object, the technical solution applied by the present invention is as follows:

[0006] A fast-paced, high-brightness, reflective, environmentally friendly aluminum mirror production line comprises a film loader for loading glass plates via a robot, two cleaning chambers for high-pressure washing of glass plates, a coating device for coating the glass plates, a paint spraying chamber for spraying paint on the coated glass plates, a drying chamber for drying the painted glass plates, and a film unloader for unloading the glass plates via a robot, wherein the film loader, the cleaning chamber, the coating device, the paint spraying chamber, the drying chamber and the film unloader are sequentially connected via a conveyor belt.

[0007] According to the above scheme, the coating device includes a coating chamber, and one side of the coating chamber is provided with a first vacuum chamber, a second vacuum chamber, a third vacuum chamber and a fourth vacuum chamber which are connected in sequence, the first vacuum chamber is connected to the cleaning chamber, and the fourth vacuum chamber is connected to the coating chamber, and the other side of the coating chamber is provided with a sixth vacuum chamber, a seventh vacuum chamber, an eighth vacuum chamber and a ninth vacuum chamber which are connected in sequence, the sixth vacuum chamber is connected to the coating chamber, and the ninth vacuum chamber is connected to the paint spraying room.

[0008] According to the above scheme, the first vacuum chamber and the ninth vacuum chamber are each provided with five vacuum pumps, and the second vacuum chamber, the third vacuum chamber, the fourth vacuum chamber, the coating chamber, the sixth vacuum chamber, the seventh vacuum chamber and the eighth vacuum chamber are each provided with a vacuum pump.

[0009] According to the above scheme, the inlet and outlet ends of the first vacuum chamber, the second vacuum chamber, the third vacuum chamber, the fourth vacuum chamber, the coating chamber, the sixth vacuum chamber, the seventh vacuum chamber, the eighth vacuum chamber and the ninth vacuum chamber are all provided with closed gates that can isolate the air.

[0010] According to the above scheme, a plurality of roller-shaped coating targets are provided in the coating chamber, and the coating targets are sputtered in the coating chamber by electromagnetic action. The sputtering bodies cover the upper surface of the glass in the coating chamber, and an air inlet pipe for spraying argon gas into the coating chamber is provided between two adjacent coating targets. Condensation tubes for maintaining a temperature of minus 150 degrees Celsius are provided at both ends of the coating chamber.

[0011] According to the above scheme, the coating target is a composite gold body, and its content includes 97 aluminum, 0.7 chromium, 0.3 titanium, 1.1 silver, and 0.9 palladium.

[0012] According to the above scheme, a sealed shell is further provided between the first vacuum chamber, the second vacuum chamber, the third vacuum chamber, the fourth vacuum chamber, the coating chamber, the sixth vacuum chamber, the seventh vacuum chamber, the eighth vacuum chamber and the ninth vacuum chamber.

[0013] According to the above scheme, a high-pressure water gun for flushing the glass plate is provided at the inlet end of the cleaning chamber, an upper high-pressure air gun and a lower high-pressure air gun are provided at the outlet end of the cleaning chamber for blowing dry the residual water on the glass plate, and a drainage trough is provided at the bottom of the cleaning chamber for draining cleaning waste water.

[0014] According to the above scheme, the high-pressure water gun, upper high-pressure air gun and lower high-pressure air gun are all set at a certain angle to the conveyor belt. The upper high-pressure air gun and the lower high-pressure air gun are respectively arranged above and below the conveyor belt. The conveyor belt is provided with channels for facilitating water flow and ventilation.

[0015] Beneficial effects of the present invention:

[0016] 1) Speed ​​up the process and process two pieces of glass at the same time. After processing two pieces at the same time and improving the coating process, the processing capacity has increased from 10,000 square meters per day to 30,000 square meters;

[0017] 2) Improve the brightness of the aluminum mirror, the glass clarity is high during processing, and it is cleaned twice before coating;

[0018] 3) Improve the reflectivity of aluminum mirrors from 76% of conventional mirrors to 85%, while pure silver mirrors can only reach 85%;

[0019] 4) Improve production efficiency. Before the improvement, one beat (the whole process of one mirror) was 45-55 seconds, and now it has reached 22 seconds;

[0020] 5) Changing the ratio of the coating target material increases the anti-oxidation ability of the mirror;

[0021] 6) The thickness of the reflective surface (coating layer) of the mirror is increased. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of the environmentally friendly aluminum mirror production line of the present invention.

[0023] 1. Film loader; 2. Cleaning chamber; 21. High-pressure water gun; 22. Upper high-pressure air gun; 23. Lower high-pressure air gun; 24. Drain trough; 31. First vacuum chamber; 32. Second vacuum chamber; 33. Third vacuum chamber; 34. Fourth vacuum chamber; 35. Coating chamber; 350. Coating target; 351. Inlet pipe; 352. Condenser; 36. Sixth vacuum chamber; 37. Seventh vacuum chamber; 38. Eighth vacuum chamber; 39. Ninth vacuum chamber; 4. Vacuum pump; 5. Sealed housing; 6. Conveyor belt; 7. Paint spraying room; 8. Drying room; 9. Film loader; 10. Closed gate. DETAILED DESCRIPTION

[0024] The technical solution of the present invention is described below in conjunction with the accompanying drawings and embodiments.

[0025] like Figure 1 As shown, the fast-paced, high-brightness, reflective, environmentally friendly aluminum mirror production line described in the present invention comprises a loading machine 1 for loading glass plates through a robot, two cleaning chambers 2 for high-pressure washing of glass plates, a coating device 3 for coating the glass plates, a paint spraying room 7 for spraying paint on the coated glass plates, a drying room 8 for drying the painted glass plates, and a unloading machine 9 for unloading the glass plates through a robot, and the loading machine 1, the cleaning chamber 2, the coating device 3, the paint spraying room 7, the drying room 8 and the unloading machine 9 are sequentially connected by a conveyor belt 6. With such a structural setting, its working principle is as follows: two glass plates are sequentially sent into the cleaning chamber 2 by a manipulator for two rinses, the two rinsed glass plates are sent into the coating device 3 for coating under the action of the conveyor belt 6, the coated glass plates are sent into the spraying room 7 for spraying under the action of the conveyor belt 6, the sprayed glass plates are sent into the drying room 8 for drying under the action of the conveyor belt 6, and finally the two glass plates are sequentially unloaded by the unloading machine 9, forming the basic structure of the environmentally friendly aluminum mirror production line described in the present invention. In practical applications, the glass plates complete the entire production line on the conveyor belt 6.

[0026] In this embodiment, the coating device 3 includes a coating chamber 35, and one side of the coating chamber 35 is provided with a first vacuum chamber 31, a second vacuum chamber 32, a third vacuum chamber 33 and a fourth vacuum chamber 34 which are connected in sequence, the first vacuum chamber 31 is connected to the cleaning chamber 2, and the fourth vacuum chamber 34 is connected to the coating chamber 35, and the other side of the coating chamber 35 is provided with a sixth vacuum chamber 36, a seventh vacuum chamber 37, an eighth vacuum chamber 38 and a ninth vacuum chamber 39 which are connected in sequence, the sixth vacuum chamber 36 is connected to the coating chamber 35, and the ninth vacuum chamber 39 is connected to the paint spraying room 7.

[0027] Preferably, the present invention adopts a nine-chamber coating method, that is, the coating chamber 35 is in the middle, and four vacuum chambers are symmetrically arranged on both sides of the coating chamber 35. Since there are impurities and dust in the air, the coating must be completed in a clean space. Therefore, the present invention coats the glass plate in a vacuum environment, which is more economical and practical than making the entire production line a clean workshop below Class 100,000.

[0028] It should be noted that the present invention uses the ninth vacuum chamber 39 to be directly connected to the paint spraying room 7 because the first thing the glass plate does after coming out of the vacuum chamber is to spray paint on the mirror, which plays an immediate anti-oxidation role.

[0029] In this embodiment, five vacuum pumps 4 are provided in the first vacuum chamber 31 and the ninth vacuum chamber 39 , and one vacuum pump 4 is provided in the second vacuum chamber 32 , the third vacuum chamber 33 , the fourth vacuum chamber 34 , the coating chamber 35 , the sixth vacuum chamber 36 , the seventh vacuum chamber 37 and the eighth vacuum chamber 38 .

[0030] Preferably, the first vacuum chamber 31 and the ninth vacuum chamber 39 of the present invention are each provided with five vacuum pumps 4, and the remaining vacuum chambers are each provided with one vacuum pump 4. Because the first vacuum chamber 31 and the ninth vacuum chamber 39 are located at the outermost side of the coating device 3 and are directly connected to the outside, in order to exhaust the air in the shortest time, the simplest method is to increase the number of vacuum pumps 4, so as to exhaust the indoor air as soon as possible, which also improves the rhythm of the production line and speeds up the production speed.

[0031] In practical applications, the vacuum pump 4 on the first vacuum chamber 31 draws a vacuum degree of 10 to the negative seventh power into the first vacuum chamber 31 .

[0032] In this embodiment, the inlet and outlet ends of the first vacuum chamber 31, the second vacuum chamber 32, the third vacuum chamber 33, the fourth vacuum chamber 34, the coating chamber 35, the sixth vacuum chamber 36, the seventh vacuum chamber 37, the eighth vacuum chamber 38 and the ninth vacuum chamber 39 are all provided with closed gates 10 that can isolate the air.

[0033] In practical applications, when the cleaned glass plate is to enter the first vacuum chamber 31, the closed gate 10 at the entrance end of the first vacuum chamber 31 is opened, and after the glass plate enters the first vacuum chamber 31, the closed gate 10 at the entrance end closes the entrance. At this time, the closed gates 10 on both sides of the first vacuum chamber 31 are in a closed state, and the vacuum pump 4 on the first vacuum chamber 31 starts to work to extract the air in the first vacuum chamber 31. After the vacuum is achieved, the closed gate 10 at the outlet end of the first vacuum chamber 31 and the closed gate 10 at the entrance end of the second vacuum chamber 32 are opened at the same time, and the glass plate enters the second vacuum chamber 32. When the closed gate 10 at the entrance end of the second vacuum chamber 32 is closed, the closed gate 10 on the second vacuum chamber 32 is closed. The vacuum pump 4 starts to work, and the air in the second vacuum chamber 32 is pumped out. After reaching the vacuum, the closed gate 10 at the outlet end of the second vacuum chamber 32 and the closed gate 10 at the inlet end of the third vacuum chamber 33 are opened at the same time, and the glass plate enters the third vacuum chamber 33. At the same time, when the closed gate 10 at the inlet end of the second vacuum chamber 32 is closed, the closed gate 10 at the inlet end of the first vacuum chamber 31 is opened, and the next two glass plates are connected, and they work in sequence. That is to say, it is impossible for any vacuum chamber to open the closed gates 10 at both the inlet and outlet ends at the same time. Because the production efficiency of the mirror depends on the rhythm of the vacuum chamber operation, the present invention adopts such a working method to effectively improve the working efficiency.

[0034] It should be noted that the sixth vacuum chamber 36, the seventh vacuum chamber 37, the eighth vacuum chamber 38 and the ninth vacuum chamber 39 are used to maintain the vacuum state in the coating chamber 35, because the vacuum state in the coating chamber 35 is as high as possible. If the sixth vacuum chamber 36, the seventh vacuum chamber 37, the eighth vacuum chamber 38 and the ninth vacuum chamber 39 are not added behind the coating chamber 35, then the air will flow into the coating chamber 35 from the outlet of the coating chamber 35 under the action of air pressure, making it difficult to maintain the vacuum state of the coating chamber 35. In other words, the air pressure ratio before coating gradually increases, and the air pressure ratio after coating gradually decreases, so the present invention adopts a nine-chamber coating method.

[0035] It should also be noted that the vacuum chamber is processed in advance to fill the unnecessary space in the vacuum chamber with irregular filling, so as to reduce the space in the vacuum chamber as much as possible and make the vacuuming faster. For example: if irregular filling is not performed, a vacuum chamber may have four cubic meters of air, but after filling, there may be only one cubic meter of air left. The speed of pumping out four cubic meters and one cubic meter of air is obviously different.

[0036] In this embodiment, a plurality of roller-shaped coating targets 350 are provided in the coating chamber 35. The coating targets 350 are sputtered in the coating chamber by electromagnetic action. The sputtering bodies cover the upper surface of the glass in the coating chamber 35. An air inlet pipe 351 for spraying argon gas into the coating chamber 35 is provided between two adjacent coating targets 350. Both ends of the coating chamber 35 are provided with condensers 352 for maintaining a temperature of minus 150 degrees Celsius.

[0037] Its working principle: when the glass plate enters the coating chamber 35, the coating target 350 is sputtered under the action of electromagnetics, and its sputtering body covers the upper surface of the glass to achieve the coating of the glass plate. Among them, argon gas can be sprayed into the coating chamber 35 through the air inlet pipe 351, thereby maintaining the stability of the coating process. The reason is that when there is a trace of air, its impurities are difficult to be removed by the vacuum pump 4 alone, so the appropriate injection of pure inert gas helps to better evacuate the impurities in the air. Among them, the condenser 352 maintains a temperature of minus 150 degrees Celsius, and its function is to collect residual water vapor by condensation, thereby ensuring absolute dryness in the coating chamber 35.

[0038] It should be noted that the present invention adopts sputtering instead of the traditional spraying method, so that the coating target 350 can be more evenly covered on the glass plate to avoid excessive waste. In actual application, three coating targets 350 are arranged in the coating chamber 35. The traditional process adopts the spraying method, but the spraying method brings many problems, such as uneven coating layer ratio (there are black spots on the mirrors in the past), accumulation of coating layer (some mirrors look like funhouse mirrors in one or several places), excessive loss of raw materials, and excessive discharge of waste affecting the environment. Sputtering refers to energizing the roller-shaped target body, so that the material of the target body is ejected in the form of molecules under the action of electromagnetic field, covering the surface of the glass to form a coating layer. The coating layer formed in this way is strong, uniform, and almost free of waste. Compared with the existing technology, it is more environmentally friendly. Moreover, this production line uses three-time coating technology. Since two pieces are operated at one time, the coating area is doubled. In order to ensure the quality, the three-time coating process is used. At the same time, the benefit is that compared with the same production method, because the number of coating times is increased, the coating layer is also thicker than the mirror coating layer which also uses sputtering coating.

[0039] In this embodiment, the coating target 350 is a composite gold body, and its content includes 97% aluminum, 0.7% chromium, 0.3% titanium, 1.1% silver, and 0.9% palladium.

[0040] Preferably, the composite gold body manufactured by the present invention using such a ratio effectively improves the reflectivity of the aluminum mirror, and is also the best and most economical ratio that can resist oxidation under current technical conditions.

[0041] In practical applications, compared with the existing technology, the reflectivity of the aluminum mirror can be increased to 85%.

[0042] In this embodiment, a sealed housing 5 is further provided between the first vacuum chamber 31, the second vacuum chamber 32, the third vacuum chamber 33, the fourth vacuum chamber 34, the coating chamber 35, the sixth vacuum chamber 36, the seventh vacuum chamber 37, the eighth vacuum chamber 38 and the ninth vacuum chamber 39. With such a structural arrangement, it is prevented that the glass plate is in contact with the outside when entering from one vacuum chamber to another, which would cause the waste of vacuuming.

[0043] In this embodiment, a high-pressure water gun 21 for washing the glass plate is provided at the inlet end of the cleaning chamber 2, an upper high-pressure air gun 22 and a lower high-pressure air gun 23 for blowing away the residual water on the glass plate are provided at the outlet end of the cleaning chamber 2, and a drainage trough 24 for draining the cleaning waste water is provided at the bottom of the cleaning chamber 2. With such a structural arrangement, the glass plate entering the cleaning chamber is high-pressure washed by the high-pressure water gun 21, and the residual water on the washed glass plate is blown away by the upper high-pressure air gun 22 and the lower high-pressure air gun 23, and the washed waste water is discharged from the cleaning chamber 2 through the drainage trough 24.

[0044] In this embodiment, the high-pressure water gun 21, the upper high-pressure air gun 22 and the lower high-pressure air gun 23 are all arranged at a certain angle to the conveyor belt 6. The upper high-pressure air gun 22 and the lower high-pressure air gun 23 are respectively arranged above and below the conveyor belt 6. The conveyor belt 6 is provided with a hole for water flow and ventilation. Such a structural arrangement is convenient for cleaning and air drying, ensuring that the glass plate enters the coating device 3 dry.

[0045] It should be noted that the present invention adopts two cleaning chambers before coating to perform cleaning twice, which can improve the cleanliness and brightness of the glass.

[0046] It should be noted that the cleaning chamber 2 and the vacuum chamber and coating chamber of the coating device 3 of the present invention are expanded to realize the processing of two glass plates at the same time, thereby improving the processing capacity. In practical applications, after processing two glass plates at the same time and improving the coating cycle, the processing capacity is increased from 10,000 square meters per day to 30,000 square meters compared with the prior art. In addition, the production line of the present invention improves the early purification (two cleanings) and the air-free coating and painting in the later stage by using the coating target 350 with increased vacuum degree and composite gold body, thereby improving the reflectivity of the aluminum mirror and thus improving the quality of the mirror.

[0047] The embodiments of the present invention are described above in conjunction with the accompanying drawings, but the present invention is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the enlightenment of the present invention, ordinary technicians in this field can also make many forms without departing from the scope of protection of the present invention and the claims, which all belong to the protection scope of the present invention.

Claims

1. A fast-beat, high-brightness, reflectivity, environmentally friendly aluminum mirror production line, characterized by: The invention comprises a glass plate loading machine (1) for loading glass plates by means of a robot, two cleaning chambers (2) for high-pressure washing of glass plates, a coating device (3) for coating glass plates, a spray painting chamber (7) for spraying paint on the coated glass plates, a drying chamber (8) for drying the painted glass plates, and a glass plate unloading machine (9) for unloading glass plates by means of a robot, wherein the glass plate loading machine (1), the cleaning chamber (2), the coating device (3), the spray painting chamber (7), the drying chamber (8) and the glass plate unloading machine (9) are sequentially connected by means of a conveyor belt (6); The coating device (3) comprises a coating chamber (35), one side of the coating chamber (35) is provided with a first vacuum chamber (31), a second vacuum chamber (32), a third vacuum chamber (33) and a fourth vacuum chamber (34) which are connected in sequence, the first vacuum chamber (31) is connected to the cleaning chamber (2), the fourth vacuum chamber (34) is connected to the coating chamber (35), and the other side of the coating chamber (35) is provided with a sixth vacuum chamber (36), a seventh vacuum chamber (37), an eighth vacuum chamber (38) and a ninth vacuum chamber (39) which are connected in sequence, the sixth vacuum chamber (36) is connected to the coating chamber (35), and the ninth vacuum chamber (39) is connected to the paint spraying room (7); The first vacuum chamber (31) and the ninth vacuum chamber (39) are each provided with five vacuum pumps (4), and the second vacuum chamber (32), the third vacuum chamber (33), the fourth vacuum chamber (34), the coating chamber (35), the sixth vacuum chamber (36), the seventh vacuum chamber (37) and the eighth vacuum chamber (38) are each provided with a vacuum pump (4); A plurality of roller-shaped coating targets (350) are arranged in the coating chamber (35), and the coating targets (350) are sputtered in the coating chamber by electromagnetic action, and the sputtering bodies cover the upper surface of the glass in the coating chamber (35). An air inlet pipe (351) for spraying argon gas into the coating chamber (35) is arranged between two adjacent coating targets (350), and condensing tubes (352) for maintaining a temperature of minus 150 degrees Celsius are arranged at both ends of the coating chamber (35); The coating target (350) is a composite gold body, the content of which includes 97% aluminum, 0.7% chromium, 0.3% titanium, 1.1% silver and 0.9% palladium, which increases the reflectivity of the aluminum mirror to 85%; The inlet end of the cleaning chamber (2) is provided with a high-pressure water gun (21) for washing the glass plate, the outlet end of the cleaning chamber (2) is provided with an upper high-pressure air gun (22) and a lower high-pressure air gun (23) for drying the residual water on the glass plate, and the bottom of the cleaning chamber (2) is provided with a drainage trough (24) for draining cleaning waste water; The high-pressure water gun (21), the upper high-pressure air gun (22) and the lower high-pressure air gun (23) are all arranged at a certain angle to the conveyor belt (6); the upper high-pressure air gun (22) and the lower high-pressure air gun (23) are respectively arranged at an upper position and a lower position of the conveyor belt (6); and the conveyor belt (6) is provided with a hole for facilitating water flow and ventilation.

2. The fast-beat, high-brightness, reflectivity, environmentally friendly aluminum mirror production line according to claim 1 is characterized by: The inlet ends and outlet ends of the first vacuum chamber (31), the second vacuum chamber (32), the third vacuum chamber (33), the fourth vacuum chamber (34), the coating chamber (35), the sixth vacuum chamber (36), the seventh vacuum chamber (37), the eighth vacuum chamber (38) and the ninth vacuum chamber (39) are all provided with closed gates (10) that isolate from air.

3. The fast-beat, high-brightness, reflectivity, environmentally friendly aluminum mirror production line according to claim 2 is characterized by: A sealed housing (5) is also provided between the first vacuum chamber (31), the second vacuum chamber (32), the third vacuum chamber (33), the fourth vacuum chamber (34), the coating chamber (35), the sixth vacuum chamber (36), the seventh vacuum chamber (37), the eighth vacuum chamber (38) and the ninth vacuum chamber (39).

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