Glass bottle cleaning and coating device and cleaning and coating method thereof

Abstract

The application provides a glass bottle cleaning and coating device, which comprises a cleaning area (1a) and a coating and curing area (2a) arranged in a box (1). A cleaning and coating method of the glass bottle cleaning and coating device comprises S1, first bottle cleaning; S2, second bottle cleaning; S3, bottle coating; and S4, film curing. The device has compact structure and small floor space. Through integrated multifunctional cavity design and intelligent control, manual intervention is reduced, the process flow and time can be controlled and adjusted, human operation pollution is reduced, and the yield and performance consistency of the coating are guaranteed.

Description

Technical Field

[0001] This invention relates to the field of glass bottle surface treatment technology, specifically to a glass bottle cleaning and coating device and a cleaning and coating method. Background Technology

[0002] Glass bottles are traditional packaging containers used to package beverages, alcoholic beverages, chemicals, pharmaceuticals, etc. They are chemically stable, possess excellent barrier and sealing properties, and effectively protect the contents from external environmental influences. However, the demands of different applications place higher requirements on the performance of glass bottles; therefore, a single glass composition can hardly simultaneously meet multiple performance requirements.

[0003] Therefore, coating glass bottles is a common practice. By coating the glass surface with a thin film of metal or other compounds, the optical, thermal, and electromagnetic properties of the glass bottle can be altered to meet specific usage requirements.

[0004] Currently, the cleaning, coating, and curing processes are three independent and separate steps that need to be completed in different specialized equipment. This requires repeated transfer of glass bottles, reducing production efficiency and creating a risk of cross-contamination between process stages. Furthermore, the repeated exposure of glass bottles to air degrades the quality of the coating. Summary of the Invention

[0005] The present invention aims to overcome the shortcomings of the prior art by providing a glass bottle cleaning and coating device and a cleaning and coating method thereof.

[0006] This application provides the following technical solution: A glass bottle cleaning and coating device is characterized by the following features: it includes a housing with a partition dividing the housing into a cleaning area and a coating curing area. An ultrasonic cleaning assembly is located within the cleaning area, and a coating curing assembly is located within the coating curing area. The coating curing assembly includes a frame with a set of inverted placement racks corresponding to the bottles. An inner nozzle with one end extending into the bottle is located on each placement rack, and symmetrically distributed outer nozzles are located on the outer side of the placement racks. A pipeline connecting the outer and inner nozzles is located at the bottom of the coating curing area. An A coating solution storage tank, a B coating solution storage tank, and a pure water storage tank, along with corresponding coating control valves and a pure water control valve, are located on the outer side of the housing and connected in parallel with the pipeline. A branch pipe is connected to the pipeline on one side of the coating control valve, and a hot air control valve and a hot air blower are connected to the branch pipe. An electric heater is built into the housing and partition that form the coating curing area, and a controller corresponding to the electric heater is located on the outer side of the housing.

[0007] Based on the above technical solutions, the following further technical solutions are also possible: An insulation layer is provided inside the casing and partition on the outside of the electric heater.

[0008] The inner wall of the electric heater is covered with a heat-conducting layer inside the box and partition that make up the coating curing area.

[0009] Inside the box and partition that make up the coating curing area, there is a set of heat-conducting fins evenly distributed on the inner wall of the electric heater.

[0010] A cleaning and coating method for a glass bottle cleaning and coating apparatus, characterized by comprising the following steps: S1 First Bottle Cleaning: Place the glass bottle in the cleaning area, then open the alkaline cleaning solution inlet valve to add an appropriate amount of alkaline cleaning solution. Activate the built-in ultrasonic cleaning vibration plate in the cleaning area for 5-30 minutes of ultrasonic cleaning. Then open the drain valve to drain the alkaline cleaning solution. Next, open the acidic cleaning solution inlet valve to add an appropriate amount of acidic cleaning solution and activate the built-in ultrasonic cleaning vibration plate in the cleaning area for 5-30 minutes of ultrasonic cleaning to complete the glass bottle cleaning process. S2 Second Bottle Cleaning: Place the cleaned glass bottle obtained in the previous step onto the placement rack of the coating curing component in the coating curing area, and open the pure water control valve to spray for 1 to 5 minutes; after closing the pure water control valve, open the hot air control valve and hot air blower on the branch pipe, control the temperature at 60 to 120°C with the hot air blower, control the air pressure at 0.3 to 0.8 MPa with the hot air control valve, and dry the glass bottle for 5 to 20 minutes to complete the drying after cleaning. S3 bottle coating: Open the A coating solution storage tank and coating control valve, and control the pressure at 0.2~0.8MPa and spray time at 5~120s to make the A coating solution evenly adhere to the surface of the glass bottle; Then close the A coating solution storage tank and coating control valve, and then open the hot air control valve and hot air blower (10), control the air pressure at 0.2~0.5MPa, and the hot air drying time is 5~20min; After the glass bottle is dried, open the B coating solution storage tank and the coating control valve, and control the pressure at 0.2~0.8MPa and the spraying time at 5~120s to make the B coating solution evenly adhere to the surface of the glass bottle. Then close the B coating solution storage tank and coating control valve, and then open the hot air control valve and hot air blower again, control the air pressure at 0.2~0.5MPa, and the hot air drying time is 5~20min. After drying is completed, turn off the valve. S4 film curing: The temperature inside the coating curing area is raised from 60~120℃ to 380~550℃ by controlling the electric heating with a controller, and then held at that temperature for 5~30 minutes. After that, the electric heating is turned off and the glass bottle is allowed to cool naturally to room temperature, resulting in a glass bottle with a completed coating.

[0011] Advantages of this invention: This invention features a compact structure and small footprint. Through an integrated multi-functional cavity design combined with an intelligent control system, it can controllably adjust the process flow and time while reducing manual intervention, thereby reducing human-caused contamination and ensuring the yield and performance consistency of the coating. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of a glass bottle cleaning and coating device; Figure 2 The image shows a SEM image of the surface morphology of the film layer on the glass bottle produced in Example 1. Figure 3 The image shows a SEM image of the surface morphology of the film layer on the glass bottle produced using Example 2. Figure 4 The image shows a SEM image of the surface morphology of the film layer on the glass bottle produced using Example 3. Figure 5 The image shows a SEM image of the surface morphology of the glass bottle film produced in Example 4. Detailed Implementation

[0013] Example 1

[0014] like Figure 1 As shown, a glass bottle cleaning and coating device includes a housing 1. A partition 2 is installed inside the housing 1, dividing the housing 1 into a non-communicating cleaning area 1a and a coating curing area 2a. An ultrasonic cleaning assembly is installed in the cleaning area 1a, connected to an alkaline cleaning solution inlet pipe and its valve 1b, an acidic cleaning solution inlet pipe and its valve 1c, and a drain valve 1d. The ultrasonic cleaning assembly is prior art, and its structure will not be described in detail here.

[0015] A coating curing assembly is provided within the coating curing area 2a. The assembly includes a frame, on which is a set of inverted placement racks 3 that correspond to the bottle body. An inner nozzle 4, with one end extending into the bottle body, is mounted on each placement rack 3. Symmetrically distributed outer nozzles 5 are also provided on the outside of the placement racks 3. Pipelines connecting the outer nozzles 5 and the inner nozzles 4 are installed inside a housing at the bottom of the coating curing area 2a. The structure and shape of the inner nozzles 4 are existing technologies.

[0016] Outside the housing 1, there are A coating solution storage tank 6, B coating solution storage tank 7 and pure water storage tank 14 connected in parallel with the pipeline, as well as corresponding coating control valve 8 and pure water control valve 14a. A branch pipe 9 is connected to the pipeline on one side of the coating control valve 8, and a hot air control valve 11 and a hot air blower 10 are connected to the branch pipe 9.

[0017] An electric heater 12 is built inside the housing 1 and partition 2 that make up the coating curing area 2a. A controller corresponding to the electric heater 12 is provided on the outside of the housing 1. A heat insulation layer a is distributed on the housing 1 and partition 2 outside the electric heater 12.

[0018] An electric heater 12 is built into the box 1 and partition 2 that make up the coating curing area 2a. The inner wall of the electric heater 12 is covered with a heat-conducting layer b. A set of heat-conducting fins 13 are evenly distributed on the inner wall of the electric heater 12 inside the box 1 and partition 2 that make up the coating curing area 2a. One end of the heat-conducting fins 13 extends into the inner wall and connects with the heat-conducting layer b. The heat-conducting layer b and the heat-conducting fins 13 are made of a metallic heat-conducting material.

[0019] A cleaning and coating method for a glass bottle cleaning and coating apparatus, characterized by comprising the following steps: S1 First Bottle Cleaning: Place the glass bottle 13 into the cleaning area 1a, then open the alkaline cleaning solution inlet valve 1b to add an appropriate amount of alkaline cleaning solution. Activate the ultrasonic cleaning vibration plate built into the cleaning area 1a for 5 minutes of ultrasonic cleaning. Then open the drain valve 1d to drain the alkaline cleaning solution. Next, open the acidic cleaning solution inlet valve 1c to add an appropriate amount of acidic cleaning solution. Activate the ultrasonic cleaning assembly built into the cleaning area 1a. The ultrasonic cleaning vibration plate in the assembly performs ultrasonic cleaning for 10 minutes to complete the cleaning of the glass bottle.

[0020] S2 Second Bottle Cleaning: Place the cleaned glass bottle obtained in the previous step onto the placement rack 3 of the coating curing component in the coating curing area 2a, and open the pure water control valve 14a for 2 minutes of spraying; after closing the pure water control valve 14a, open the hot air control valve 11 and the hot air blower 10 on the branch pipe, control the temperature at 60°C through the hot air blower 10, control the air pressure at 0.3MPa through the hot air control valve 11, and dry the glass bottle for 8 minutes to complete the drying after cleaning.

[0021] S3 bottle coating: Open the A coating solution storage tank 6 and the coating control valve 8, and control the pressure at 0.2MPa and the spraying time at 30s to make the coating solution A evenly adhere to the surface of the glass bottle.

[0022] Then close the A coating solution storage tank 6 and the coating control valve 8, and then open the hot air control valve 11 and the hot air blower 10, control the air pressure at 0.2MPa, and the hot air drying time is 6min.

[0023] After the glass bottle is dried, open the B coating solution storage tank 7 and the coating control valve 8, and control the pressure at 0.2MPa and the spraying time at 30s to ensure that the B coating solution is evenly adhered to the surface of the glass bottle.

[0024] Then close the B coating solution storage tank 7 and the coating control valve 8, and then open the hot air control valve 11 and the hot air blower 10 again, control the air pressure at 0.2MPa, and the hot air drying time is 6 minutes. After the coating is completed and the drying is finished, close the valve.

[0025] S4 film curing: The temperature inside the coating curing area 2a is raised from 60 min to 400℃ by the electric heater 12 controlled by the controller, held for 5 min, and then the electric heater 12 is turned off and allowed to cool naturally to room temperature to obtain a glass bottle with complete coating.

[0026] Three more embodiments are disclosed below. The only difference between these three embodiments and Embodiment 1 is the cleaning and coating method. The structure of a glass bottle cleaning and coating device is the same. Therefore, the structure of the same glass bottle cleaning and coating device will not be described in the following embodiments.

[0027] Example 2

[0028] A cleaning and coating method for a glass bottle cleaning and coating apparatus, characterized by comprising the following steps: S1 First Bottle Cleaning: Place the glass bottle 13 into the cleaning area 1a, then open the alkaline cleaning solution inlet valve to add an appropriate amount of alkaline cleaning solution. Activate the ultrasonic cleaning vibration plate built into the cleaning area 1a for 10 minutes of ultrasonic cleaning. Then open the drain valve to drain the alkaline cleaning solution. Next, open the acidic cleaning solution inlet valve to add an appropriate amount of acidic cleaning solution. Activate the ultrasonic cleaning assembly built into the cleaning area 1a. The ultrasonic cleaning vibration plate in the assembly performs ultrasonic cleaning for 10 minutes to complete the cleaning of the glass bottle.

[0029] S2 Second Bottle Cleaning: Place the cleaned glass bottle obtained in the previous step onto the placement rack 3 of the coating curing component in the coating curing area 2a, and open the pure water control valve 14a for 2 minutes of spraying; after closing the pure water control valve 14a, open the hot air control valve 11 and the hot air blower 10 on the branch pipe, control the temperature at 80°C through the hot air blower 10, control the air pressure at 0.5MPa through the hot air control valve 11, and dry the glass bottle for 5 minutes to complete the drying after cleaning.

[0030] S3 bottle coating: Open the A coating solution storage tank 6 and the coating control valve 8, and control the pressure at 0.6MPa and the spraying time at 60s to make the coating solution A evenly adhere to the surface of the glass bottle.

[0031] Then close the A coating solution storage tank 6 and the coating control valve 8, and then open the hot air control valve 11 and the hot air blower 10, control the air pressure at 0.5MPa, and the hot air drying time is 5min.

[0032] After the glass bottle is dried, open the B coating solution storage tank 7 and the coating control valve 8, and control the pressure at 0.6MPa and the spraying time at 60s to ensure that the B coating solution is evenly adhered to the surface of the glass bottle.

[0033] Then close the B coating solution storage tank 7 and the coating control valve 8, and then open the hot air control valve 11 and the hot air blower 10 again, control the air pressure at 0.5MPa, and the hot air drying time is 5 minutes. After the coating is completed and the drying is finished, close the valve.

[0034] S4 film curing: The temperature inside the coating curing area 2a is raised from 80 min to 450℃ by the electric heater 12 controlled by the controller, and kept at that temperature for 10 min. Then the electric heater 12 is turned off and the glass bottle is naturally cooled to room temperature to obtain the coated glass bottle.

[0035] Example 3

[0036] A cleaning and coating method for a glass bottle cleaning and coating apparatus, characterized by comprising the following steps: S1 First Bottle Cleaning: Place the glass bottle 13 into the cleaning area 1a, then open the alkaline cleaning solution inlet valve to add an appropriate amount of alkaline cleaning solution. Activate the ultrasonic cleaning vibration plate built into the cleaning area 1a for 20 minutes of ultrasonic cleaning. Then open the drain valve to drain the alkaline cleaning solution. Next, open the acidic cleaning solution inlet valve to add an appropriate amount of acidic cleaning solution. Activate the ultrasonic cleaning assembly built into the cleaning area 1a. The ultrasonic cleaning vibration plate in the assembly performs ultrasonic cleaning for 20 minutes to complete the cleaning of the glass bottle.

[0037] S2 Second Bottle Cleaning: Place the cleaned glass bottle obtained in the previous step onto the placement rack 3 of the coating curing component in the coating curing area 2a, and open the pure water control valve 14a for 5 minutes of spraying; after closing the pure water control valve 14a, open the hot air control valve 11 and the hot air blower 10 on the branch pipe, control the temperature at 100℃ through the hot air blower 10, control the air pressure at 0.8MPa through the hot air control valve 11, and dry the glass bottle for 10 minutes to complete the drying after cleaning.

[0038] S3 bottle coating: Open the A coating solution storage tank 6 and the coating control valve 8, and control the pressure at 0.8MPa and the spraying time at 40s to make the coating solution A evenly adhere to the surface of the glass bottle.

[0039] Then close the A coating solution storage tank 6 and the coating control valve 8, and then open the hot air control valve 11 and the hot air blower 10, control the air pressure at 0.4MPa, and the hot air drying time is 8min.

[0040] After the glass bottle is dried, open the B coating solution storage tank 7 and the coating control valve 8, and control the pressure at 0.8MPa and the spraying time at 40s to ensure that the B coating solution is evenly adhered to the surface of the glass bottle.

[0041] Then close the B coating solution storage tank 7 and the coating control valve 8, and then open the hot air control valve 11 and the hot air blower 10 again, control the air pressure at 0.4MPa, and the hot air drying time is 8 minutes. After the coating is completed and the drying is finished, close the valve.

[0042] S4 film curing: The temperature inside the coating curing area 2a is raised from 120 min to 400℃ by controlling the electric heater 12, and kept at that temperature for 20 min. Then the electric heater 12 is turned off and the glass bottle is naturally cooled to room temperature to obtain the coated glass bottle.

[0043] Example 4

[0044] A cleaning and coating method for a glass bottle cleaning and coating apparatus, characterized by comprising the following steps: S1 First Bottle Cleaning: Place the glass bottle 13 into the cleaning area 1a, then open the alkaline cleaning solution inlet valve to add an appropriate amount of alkaline cleaning solution. Activate the ultrasonic cleaning vibration plate built into the cleaning area 1a for 15 minutes of ultrasonic cleaning. Then open the drain valve to drain the alkaline cleaning solution. Next, open the acidic cleaning solution inlet valve to add an appropriate amount of acidic cleaning solution. Activate the ultrasonic cleaning assembly built into the cleaning area 1a. The ultrasonic cleaning vibration plate in the assembly performs ultrasonic cleaning for 15 minutes to complete the cleaning of the glass bottle.

[0045] S2 Second Bottle Cleaning: Place the cleaned glass bottle obtained in the previous step onto the placement rack 3 of the coating curing component in the coating curing area 2a, and open the pure water control valve 14a for 5 minutes of spraying; after closing the pure water control valve 14a, open the hot air control valve 11 and the hot air blower 10 on the branch pipe, control the temperature at 80°C through the hot air blower 10, control the air pressure at 0.6MPa through the hot air control valve 11, and dry the glass bottle for 8 minutes to complete the drying after cleaning.

[0046] S3 bottle coating: Open the A coating solution storage tank 6 and the coating control valve 8, and control the pressure at 0.2MPa and the spraying time at 45s to make the coating solution A evenly adhere to the surface of the glass bottle.

[0047] Then close the A coating solution storage tank 6 and the coating control valve 8, and then open the hot air control valve 11 and the hot air blower 10, control the air pressure at 0.2MPa, and the hot air drying time is 10min.

[0048] After the glass bottle is dried, open the B coating solution storage tank 7 and the coating control valve 8, and control the pressure at 0.2MPa and the spraying time at 45s to ensure that the B coating solution is evenly adhered to the surface of the glass bottle.

[0049] Then close the B coating solution storage tank 7 and the coating control valve 8, and then open the hot air control valve 11 and the hot air blower 10 again, control the air pressure at 0.2MPa, and the hot air drying time is 10 minutes. After the coating is completed and the drying is finished, close the valve.

[0050] S4 film curing: The temperature inside the coating curing area 2a is raised from 120 min to 420℃ by controlling the electric heater 12, and kept at that temperature for 10 min. Then the electric heater 12 is turned off and the glass bottle is naturally cooled to room temperature to obtain the coated glass bottle.

[0051] Following the methods in Examples 1-4, glass bottles with SiO2 films were obtained, and their surface morphology was tested after a water resistance test. The water resistance test conditions were as follows: pure water was poured into the glass bottles, which were then capped and placed on the tray of an autoclave. An appropriate amount of clean distilled or deionized water was pre-added to the autoclave. The autoclave was then closed, heated to 100°C, and the air was vented for 10 minutes through the exhaust valve. After venting, the exhaust valve was closed, and the temperature was increased to 121°C at a rate of 1°C / minute, and maintained at 121°C ± 1°C for 60 minutes. After completion, the temperature was lowered from 121°C to 100°C, and the exhaust valve was opened to avoid creating a vacuum. Finally, the glass bottles were removed and transferred to a temperature-controlled water bath at 80°C, where cooling water was introduced to rapidly cool them to room temperature.

[0052] like Figure 2-5 As shown in the surface morphology tests of the films in Examples 1-4, the film surface morphology is dense after the water resistance test, indicating high film adhesion. This proves that cleaning the coating equipment with a glass bottle can reduce operational contamination and ensure the yield and performance consistency of the coating. The green values ​​in Figures 2-5 represent particle size.

Claims

1. A glass bottle cleaning and coating device, characterized in that: It includes a housing (1), with a partition (2) inside the housing (1) dividing the housing (1) into a cleaning area (1a) and a coating curing area (2a). An ultrasonic cleaning assembly is provided in the cleaning area (1a), and a coating curing assembly is provided in the coating curing area (2a). The coating curing assembly includes a frame, on which is a set of inverted placement racks (3) corresponding to the bottle body. An inner nozzle (4) with one end extending into the bottle body is provided on the placement rack (3), and symmetrically distributed outer nozzles (5) are also provided on the outside of the placement rack (3). At the bottom of the coating curing area (2a) is a... The outer nozzle (5) and the inner nozzle (4) are connected by a pipeline. On the outside of the box (1), there are A coating liquid storage tank (6), B coating liquid storage tank (7) and pure water storage tank (14) connected in parallel with the pipeline, as well as corresponding coating control valve (8) and pure water control valve (14a). A branch pipe (9) is connected to the pipeline on one side of the coating control valve (8). A hot air control valve (11) and a hot air blower (10) are connected to the branch pipe (9). An electric heater (12) is built into the box (1) and the partition (2) that make up the coating curing area (2a). A controller corresponding to the electric heater (12) is provided on the outside of the box (1).

2. The glass bottle cleaning and coating device according to claim 1, characterized in that: A heat insulation layer is provided inside the casing (1) and partition (2) on the outside of the electric heater (12).

3. The glass bottle cleaning and coating apparatus according to claim 1, characterized in that: The inner wall of the electric heater (12) inside the box (1) and partition (2) that make up the coating curing area (2a) is covered with a heat-conducting layer.

4. The glass bottle cleaning and coating apparatus according to claim 1, characterized in that: Inside the housing (1) and partition (2) that constitute the coating curing area (2a), there is a built-in electric heater (12) with a set of heat-conducting fins (13) evenly distributed on the inner wall.

5. The cleaning and coating method of the glass bottle cleaning and coating apparatus as described in claim 1, characterized in that: It includes the following steps: S1 First Bottle Cleaning: Place the glass bottle (13) into the cleaning area (1a), then open the alkaline cleaning solution input valve to add an appropriate amount of alkaline cleaning solution, start the ultrasonic cleaning vibration plate built into the cleaning area (1a) for 5~30 minutes of ultrasonic cleaning, then open the drain valve to drain the alkaline cleaning solution, then open the acidic cleaning solution input valve to add an appropriate amount of acidic cleaning solution, and start the ultrasonic cleaning vibration plate built into the cleaning area (1a) for 5~30 minutes of ultrasonic cleaning to complete the cleaning of the glass bottle; S2 Second Bottle Cleaning: Place the cleaned glass bottle obtained in the previous step onto the placement rack (3) of the coating curing component in the coating curing area (2a), open the pure water control valve (14a) for 1~5 minutes of spraying; close the pure water control valve (14a) and then open the hot air control valve (11) and hot air blower (10) on the branch pipe. Control the temperature at 60~120℃ through the hot air blower (10), control the air pressure at 0.3~0.8MPa through the hot air control valve (11), and dry the hot air for 5~20 minutes to complete the drying of the glass bottle after cleaning; S3 bottle coating: Open the A coating solution storage tank (6) and the coating control valve (8), and control the pressure at 0.2~0.8MPa and the spraying time at 5~120s, so that the coating solution A is evenly attached to the surface of the glass bottle; Then close the A coating solution storage tank (6) and coating control valve (8), and then open the hot air control valve (11) and hot air blower (10), control the air pressure at 0.2~0.5MPa, and the hot air drying time is 5~20min; After the glass bottle is dried, open the B coating solution storage tank (7) and the coating control valve (8), and control the pressure at 0.2~0.8MPa and the spraying time at 5~120s so that the coating solution B is evenly attached to the surface of the glass bottle. Then close the B coating solution storage tank (7) and coating control valve (8), and then open the hot air control valve (11) and hot air blower (10) again, control the air pressure at 0.2~0.5MPa, and the hot air drying time is 5~20min. After drying is completed, close the valve. S4 film curing: The temperature inside the coating curing area (2a) is raised from 60~120 min to 380~550℃ by controlling the electric heater (12) with the controller, and kept at that temperature for 5~30 min. Then the electric heater (12) is turned off and the glass bottle is naturally cooled to room temperature to obtain the coated glass bottle.

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