Vacuum coating film production cleaning device

Abstract

A cleaning device for vacuum coating film production, relating to the field of vacuum coating equipment technology, includes a cleaning tank. The inner cavity of the cleaning tank is divided into multiple sub-cleaning chambers arranged in series by at least one continuously undulating barrier. Each sub-cleaning chamber has an independent liquid-containing space. A liquid isolation mechanism is installed on the cleaning tank corresponding to the crest position of the sub-cleaning chamber, and a conveying roller is rotatably installed at the trough position of the sub-cleaning chamber. An inlet pipe is uniformly fixed on the side of the cleaning tank and communicates with the interior of the sub-cleaning chamber. A cleaning auxiliary unit is installed on the cleaning tank corresponding to the outer wall position of the sub-cleaning chamber. In this cleaning device for vacuum coating film production, the liquid in each sub-cleaning chamber is independent. Combined with the liquid isolation mechanism at the crest, it can effectively prevent dirty liquid from flowing back to the clean liquid area, ensuring the cleanliness of the final cleaning stage and fundamentally avoiding secondary pollution.

Description

Technical Field

[0001] This utility model relates to the field of vacuum coating equipment technology, and in particular to a cleaning device for vacuum color coating production. Background Technology

[0002] In the vacuum coating process, the cleanliness of the substrate surface is a key factor determining the coating quality. Even trace amounts of grease, dust, or particulate matter residue can lead to defects such as pinholes, reduced adhesion, and uneven color in the film, severely impacting product yield.

[0003] Currently, most common substrate cleaning methods use cleaning tanks. However, traditional cleaning tanks are mostly flat-bottomed, which can easily create dead zones in the cleaning solution, causing contaminants to circulate within the tank and resulting in secondary contamination of the substrate. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the existing defects and provide a cleaning device for vacuum coating color film production. The liquid in each sub-cleaning chamber is independent of each other. Combined with the liquid isolation mechanism at the wave crest, it can effectively prevent dirty liquid from flowing back to the clean liquid area, ensuring the cleanliness of the final cleaning stage and fundamentally avoiding secondary pollution. It can effectively solve the problems in the background technology.

[0005] To achieve the aforementioned objective, this utility model adopts the following technical solution: A cleaning device for vacuum coating color film production includes a cleaning tank. The inner cavity of the cleaning tank is divided into multiple sub-cleaning chambers arranged in series by at least one continuously undulating barrier. Each sub-cleaning chamber has an independent liquid containing space. A liquid isolation mechanism is installed on the cleaning tank at the crest position corresponding to the sub-cleaning chamber, and a conveying roller is rotatably installed at the trough position of the sub-cleaning chamber. Liquid inlet pipes are uniformly fixed on the side of the cleaning tank and communicate with the interior of the sub-cleaning chamber. A cleaning auxiliary unit is installed on the cleaning tank at the outer wall position corresponding to the sub-cleaning chamber. A sewage discharge unit is fixed at the bottom of the cleaning tank and communicates with the lowest point of the sub-cleaning chamber. A PLC controller is installed on the side of the cleaning tank and is electrically connected to an external power supply.

[0006] Furthermore, the continuously undulating barrier forms the bottom of the cleaning tank, and the bottom of the cleaning tank is at least one of a sine wave, a sawtooth wave, or a trapezoidal wave.

[0007] Furthermore, the liquid isolation mechanism includes a pair of squeezing rollers rotatably connected to the cleaning tank, the squeezing rollers being composed of a metal core and an elastic material layer covering the outside.

[0008] Furthermore, the elastic material layer is one of a silicone rubber layer, a polyurethane layer, or a fluororubber layer.

[0009] Furthermore, the cleaning auxiliary unit includes a transducer and an ultrasonic generator. The ultrasonic generator is installed at the bottom of the cleaning tank and is positioned on the outer wall of the corresponding sub-cleaning chamber. The transducer is mounted on the ultrasonic generator, and both the transducer and the ultrasonic generator are electrically connected to a PLC controller.

[0010] Furthermore, the sewage discharge unit includes a sewage discharge valve and a sewage discharge pipe. The sewage discharge pipe is fixed to the bottom of the cleaning tank and communicates with the interior of the sub-cleaning chamber. The sewage discharge valve is mounted on the sewage discharge pipe.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: This cleaning device for vacuum coating color film production has the following advantages: 1. The cleaning tank 1 is divided into multiple serially connected sub-cleaning chambers by continuous undulating barriers, realizing a multi-stage cleaning process from coarse cleaning to fine cleaning in one tank. The structure is compact and the cleaning efficiency is high.

[0012] 2. The liquids in each sub-cleaning chamber are independent of each other. Combined with the liquid isolation mechanism at the crest, it can effectively prevent dirty liquid from flowing back into the clean liquid area, ensuring the cleanliness of the final cleaning stage and fundamentally avoiding secondary pollution.

[0013] 3. The wavy bottom structure extends the path and contact time of the substrate in the cleaning solution. Combined with the cleaning auxiliary unit, it can create local turbulence in each sub-cavity, peeling off contaminants layer by layer for a more thorough cleaning effect. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a schematic diagram of the three-dimensional bottom structure of this utility model; Figure 3 This is a three-dimensional cross-sectional structural diagram of the present invention; Figure 4 This utility model Figure 3 A magnified structural diagram at point A.

[0015] In the diagram: 1-cleaning tank, 2-liquid isolation mechanism, 3-PLC controller, 4-drainage unit, 41-drainage valve, 42-drainage pipe, 5-cleaning auxiliary unit, 51-transducer, 52-ultrasonic generator, 6-liquid inlet pipe, 7-conveying roller. Detailed Implementation

[0016] The present invention will be explained in detail through the following embodiments. The purpose of disclosing the present invention is to protect all technical improvements within the scope of the present invention.

[0017] Please see Figure 1-4This embodiment provides a technical solution: a cleaning device for vacuum coating color film production, including a cleaning tank 1. The inner cavity of the cleaning tank 1 is divided into multiple sub-cleaning chambers arranged in series by at least one continuously undulating barrier. Each sub-cleaning chamber has an independent liquid containing space. A liquid isolation mechanism 2 is installed on the cleaning tank 1 at the crest position of the sub-cleaning chamber. A conveying roller 7 is rotatably installed at the trough position of the sub-cleaning chamber. An inlet pipe 6 is uniformly fixed on the side of the cleaning tank 1 and communicates with the inside of the sub-cleaning chamber. A cleaning auxiliary unit 5 is installed on the cleaning tank 1 at the outer wall position of the sub-cleaning chamber. A sewage discharge unit 4 is fixed at the bottom of the cleaning tank 1 and communicates with the lowest point of the sub-cleaning chamber. A PLC controller 3 is installed on the side of the cleaning tank 1 and is electrically connected to an external power supply.

[0018] The bottom of the cleaning tank 1 is formed by a continuous undulating barrier, which has at least one of a sine wave, a sawtooth wave, or a trapezoidal wave. The inlet pipe 6 injects the corresponding liquid into each sub-cleaning chamber. The substrate to be cleaned enters from one end of the cleaning tank 1 and meanders through each sub-cleaning chamber in sequence. The substrate is conveyed by the liquid isolation mechanism 2 and the conveying roller 7. In the first chamber, the substrate comes into contact with a cleaning liquid with a higher concentration or heavier contamination for a strong coarse wash. After passing through the squeezing roller group, most of the dirty liquid is scraped off before entering the second chamber for a medium wash. This process is repeated until the substrate is cleaned with ultrapure water or the cleaning liquid with the highest purity in the last chamber. The final rinsing process involves dividing the cleaning tank 1 into multiple serially connected sub-cleaning chambers using continuously undulating barriers. This allows for a multi-stage cleaning process, from coarse to fine cleaning, to be completed within a single tank. The structure is compact and highly efficient. The liquids in each sub-cleaning chamber are independent of each other. Combined with the liquid isolation mechanism 2 at the crest, it effectively prevents dirty liquid from flowing back into the clean liquid area, ensuring the cleanliness of the final cleaning stage and fundamentally avoiding secondary contamination. The wavy bottom structure extends the path and contact time of the substrate in the cleaning liquid. In conjunction with the cleaning auxiliary unit 5, it can create local turbulence in each sub-chamber, peeling off contaminants layer by layer for a more thorough cleaning effect.

[0019] The liquid isolation mechanism 2 includes a pair of extrusion rollers rotatably connected to the cleaning tank 1. The extrusion rollers are composed of a metal core and an elastic material layer covering it. The elastic material layer is one of silicone rubber, polyurethane, or fluororubber. When the substrate passes between the pair of extrusion rollers, the rollers provide conveying power on the one hand, and use their elastic surfaces to tightly adhere to the substrate on the other hand, scraping off the cleaning liquid carried on the surface of the substrate from the previous chamber, thereby maximally preventing the flow of liquid between the chambers and ensuring the independence of the liquid in each sub-cleaning chamber.

[0020] The cleaning auxiliary unit 5 includes a transducer 51 and an ultrasonic generator 52. The ultrasonic generator 52 is installed at the bottom of the cleaning tank 1 and is set on the outer wall of the corresponding sub-cleaning chamber. The transducer 51 is mounted on the ultrasonic generator 52. Both the transducer 51 and the ultrasonic generator 52 are electrically connected to the PLC controller 3. The ultrasonic generator 52 emits ultrasonic signals, and the transducer 51 converts the ultrasonic signals into mechanical vibrations, using the cavitation effect to powerfully clean the surface of the substrate.

[0021] The sewage discharge unit 4 includes a sewage discharge valve 41 and a sewage discharge pipe 42. The sewage discharge pipe 42 is fixed at the bottom of the cleaning tank 1 and communicates with the interior of the sub-cleaning chamber. The sewage discharge valve 41 is mounted on the sewage discharge pipe 42. When cleaning is completed or the cleaning fluid needs to be replaced, the sewage discharge valve 41 is opened, and the dirt and waste liquid can be discharged through the sewage discharge pipe 42 under the action of gravity.

[0022] The working principle of the cleaning device for vacuum coating color film production provided by this utility model is as follows: The liquid inlet pipe 6 injects the corresponding liquid into each sub-cleaning chamber. The substrate to be cleaned enters from one end of the cleaning tank 1 and meanders through each sub-cleaning chamber in sequence. The substrate is transported by the liquid isolation mechanism 2 and the conveying roller 7. In the first chamber, the substrate comes into contact with the cleaning liquid with a higher concentration or more contamination and undergoes a strong coarse wash. Then, after passing through the squeezing roller group, most of the dirty liquid is scraped off and the substrate enters the second chamber for a medium wash. This process is repeated until the substrate is finally rinsed in the last chamber by ultrapure water or the cleaning liquid with the highest purity. During the cleaning process, the ultrasonic generator 52 emits an ultrasonic signal, and the transducer 51 converts the ultrasonic signal into mechanical oscillation, using the cavitation effect to powerfully clean the surface of the substrate.

[0023] It is worth noting that the components disclosed in the above embodiments are all general standard parts or parts known to those skilled in the art. Their structures and principles can be learned by those skilled in the art through technical manuals or conventional experimental methods. The PLC controller 3, transducer 51 and ultrasonic generator 52 are all products currently on the market. Their structures and principles are known technologies. This solution only describes their role in this solution and the technical effects to be produced. The conveying roller 7 is a magnetically coupled drive roller.

[0024] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances. For example, a rotary connection can refer to a rotary connection through a bearing.

[0025] The parts of this utility model not described in detail are prior art. Although this utility model has been specifically shown and introduced in conjunction with preferred embodiments, there are many methods and approaches to implement this technical solution. The above description is only a preferred embodiment of this utility model. However, those skilled in the art should understand that various changes in form and detail can be made to this utility model without departing from the spirit and scope of this utility model as defined by the appended claims, and all such changes shall be within the protection scope of this utility model.

Claims

1. A cleaning device for vacuum color-coated film production, comprising a cleaning tank (1), characterized in that: The inner cavity of the cleaning tank (1) is divided into multiple sub-cleaning chambers arranged in series by at least one continuous undulating barrier. Each sub-cleaning chamber has an independent liquid containing space. A liquid isolation mechanism (2) is installed on the cleaning tank (1) at the peak position of the sub-cleaning chamber. A conveying roller (7) is rotatably installed at the trough position of the sub-cleaning chamber. An inlet pipe (6) is evenly fixed on the side of the cleaning tank (1). The inlet pipe (6) communicates with the inside of the sub-cleaning chamber. A cleaning auxiliary unit (5) is installed on the cleaning tank (1) at the outer wall position of the sub-cleaning chamber. A sewage discharge unit (4) is fixed at the bottom of the cleaning tank (1). The sewage discharge unit (4) communicates with the lowest point of the sub-cleaning chamber. A PLC controller (3) is installed on the side of the cleaning tank (1). The PLC controller (3) is electrically connected to an external power supply.

2. The cleaning device for vacuum color-coated film production according to claim 1, characterized in that: The continuously undulating barrier forms the bottom of the cleaning tank (1), and the bottom of the cleaning tank (1) is at least one of a sine wave, a sawtooth wave, or a trapezoidal wave.

3. The cleaning device for vacuum color-coated film production according to claim 1, characterized in that: The liquid isolation mechanism (2) includes a pair of squeezing rollers, which are rotatably connected to the cleaning tank (1). The squeezing rollers are composed of a metal core and an elastic material layer covering the outside.

4. The cleaning device for vacuum color coating production according to claim 3, characterized in that: The elastic material layer is one of a silicone rubber layer, a polyurethane layer, or a fluororubber layer.

5. The cleaning device for vacuum color-coated film production according to claim 1, characterized in that: The cleaning auxiliary unit (5) includes a transducer (51) and an ultrasonic generator (52). The ultrasonic generator (52) is installed at the bottom of the cleaning tank (1) and is set on the outer wall of the corresponding sub-cleaning chamber. The transducer (51) is mounted on the ultrasonic generator (52). Both the transducer (51) and the ultrasonic generator (52) are electrically connected to the PLC controller (3).

6. The cleaning device for vacuum color-coated film production according to claim 1, characterized in that: The sewage discharge unit (4) includes a sewage discharge valve (41) and a sewage discharge pipe (42). The sewage discharge pipe (42) is fixed at the bottom of the cleaning tank (1) and communicates with the interior of the sub-cleaning chamber. The sewage discharge valve (41) is mounted on the sewage discharge pipe (42).

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