Surface pretreatment device for full-automatic production line of anodic aluminum oxide roll

Abstract

The utility model belongs to the technical field of anodic aluminum oxide roll production equipment, and discloses an anodic aluminum oxide roll full-automatic production line surface pretreatment device which comprises an oil removal treatment section, a water washing treatment section and a water treatment section B. The oil removal treatment section comprises a plurality of brush roller sets arranged in sequence and a plurality of spraying sets A arranged in sequence. The multiple brush roller sets and the multiple spraying sets A are arranged in a staggered mode, the washing treatment section comprises multiple spraying sets B arranged in sequence, the moisture treatment section B comprises multiple elastic extrusion roller sets B arranged in sequence and multiple water absorption roller sets B arranged in sequence, and the multiple elastic extrusion roller sets B and the multiple water absorption roller sets B are arranged front and back. Wherein the brush roller set is composed of an upper brush roller and a lower brush roller which are symmetrical, the elastic extrusion roller set B is composed of an upper elastic extrusion roller and a lower elastic extrusion roller which are symmetrical, and the water absorption roller set B is composed of an upper water absorption roller and a lower water absorption roller which are symmetrical. The device has the advantages of being short in technological process, simple in technology, easy to operate, good in treatment effect and high in treatment speed.

Description

Technical Field

[0001] This utility model belongs to the technical field of anodized aluminum coil production equipment, specifically relating to a surface pretreatment device for a fully automatic anodized aluminum coil production line. Background Art

[0002] To enhance the surface properties of ordinary aluminum coils and better adapt them to various application scenarios, the current popular and common method is to use anodizing to form an aluminum oxide film on the surface of ordinary aluminum coils. The aluminum oxide film gives ordinary aluminum coils high strength, good bending resistance, good wear resistance, good corrosion resistance, excellent high-temperature performance, and high insulation, thus providing more effective protection for vehicle license plates in various special application environments.

[0003] Existing surface pretreatment devices, such as the Chinese utility model patent "A Pretreatment System for Anodizing Aluminum Strips" (CN208414597U), include a mechanical polishing device, an oil removal device, a water washing device, a chemical polishing device, and a neutralization and descaling brightening device. First, the aluminum strip is polished by a 1-meter mechanical polishing device, then degreased by a 6-meter degreasing device, followed by rinsing with a 2-meter water washing device to remove surface wastewater. Next, it is polished by a 2-meter chemical polishing device, and after chemical polishing, the surface wastewater is rinsed away by a 2-meter water washing device. Then, it is neutralized and descaled by a 2-meter brightening device to remove residual chemicals and oxide scale. Finally, the surface wastewater from the neutralization and descaling brightening treatment is rinsed away by a 2-meter water washing device. This increases the smoothness and brightness of the aluminum strip surface, resulting in a uniform and clean surface, effectively improving the characteristics of the subsequent oxide film, and maintaining the aluminum strip's brightness and cleanliness.

[0004] However, the entire surface pretreatment process involves many steps, a long process, and is cumbersome and complex. It requires the treatment of both acidic and alkaline wastewater, and the sludge formed after acid-base neutralization requires environmental protection treatment, resulting in significant pollution and high wastewater treatment costs. To solve these problems, it is necessary to develop a surface pretreatment device for a fully automated production line of anodized aluminum coils. Utility Model Content

[0005] The purpose of this invention is to overcome the shortcomings of the prior art and provide a surface pretreatment device for a fully automatic production line of anodized aluminum coils that has a short process, simple and easy operation, good treatment effect, and fast processing speed.

[0006] The purpose of this utility model is achieved as follows: A surface pretreatment device for a fully automatic production line of anodized aluminum coils includes an oil removal section, a water washing section, and a moisture treatment section B arranged in sequence. The oil removal section includes multiple sets of brush rollers and multiple sets of spray groups A arranged in sequence, which are staggered. The water washing section includes multiple sets of spray groups B arranged in sequence. The moisture treatment section B includes multiple sets of elastic extrusion rollers B and multiple sets of water absorption rollers B arranged in sequence, which are arranged in front of and behind each other.

[0007] The brush roller group consists of two symmetrical brush rollers, the elastic squeeze roller group B consists of two symmetrical elastic squeeze rollers, the water absorption roller group B consists of two symmetrical water absorption rollers, and the spray group A and the spray group B consist of two symmetrical spray pipes A and B, respectively.

[0008] Preferably, a moisture treatment section A is provided between the degreasing treatment section and the washing treatment section. The moisture treatment section A includes multiple sets of elastic extrusion rollers A arranged in sequence and multiple sets of water absorption rollers A arranged in sequence. The multiple sets of elastic extrusion rollers A and the multiple sets of water absorption rollers A are arranged in front of and behind each other. The elastic extrusion rollers A consists of two symmetrical elastic extrusion rollers A, one above the other, and the water absorption rollers A consists of two symmetrical water absorption rollers A, one above the other.

[0009] Preferably, the degreasing treatment section and the moisture treatment section A are provided with a common water collection tank A below them, and the washing treatment section and the moisture treatment section B are provided with a common water collection tank B below them.

[0010] Preferably, the spray pipe A contains a neutral, environmentally friendly degreasing agent, and the spray pipe B contains water.

[0011] Preferably, both spray pipe A and spray pipe B have multiple evenly distributed spray heads on their working sides.

[0012] Preferably, the spray pipe A is oscillating left and right, and the spray head of the spray pipe B is tilted at a certain angle.

[0013] Preferably, the brush roller is an alumina wire brush roller.

[0014] Preferably, the elastic extrusion roller is an epoxy resin roller, a silicone roller, or a rubber roller.

[0015] Preferably, the absorbent roller A and the absorbent roller B are sponge rollers, PVC rollers, or aerogel rollers.

[0016] Due to the adoption of the above technical solutions, the beneficial effects of this utility model are as follows: This utility model employs an oil removal treatment section, a water washing treatment section, and a moisture treatment section, which greatly reduces the number of steps in the pretreatment of the aluminum coil surface. The process is short, simple, and easy to operate. The oil removal treatment section uses multiple pairs of staggered brush rollers and spray pipes to remove burrs and mechanical marks from the aluminum coil surface, increasing surface smoothness and gloss. The oil removal effect is good, the speed is fast, and the aluminum coil surface is uniformly clean. The water washing treatment section uses multiple pairs of spray pipes to perform high-pressure spraying and washing on the surface of the aluminum coil after the oil removal treatment. The process thoroughly removes residual stains and wastewater. In the moisture treatment section, multiple pairs of elastic extrusion rollers first use up-and-down pressure to clean the wastewater from the surface of the aluminum coil. Then, a water-absorbing roller absorbs the residual moisture from the surface of the aluminum coil. This facilitates the rapid entry of the pre-treated aluminum coil into the conductive roller or guide roller, allowing for quick contact and conductivity. Alternatively, the guide roller can quickly introduce electrolyte, preventing excessive contact with air and thus avoiding natural oxidation, reducing resistance, and promoting the growth of the oxide film in the oxidation tank. Overall, this invention has the advantages of a short process, simple and easy operation, good treatment effect, and fast processing speed. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0018] Figure 2 This is a schematic diagram of the main structure of a partial component of this utility model.

[0019] In the diagram: 1. Brush roller; 2. Spray pipe A; 3. Elastic extrusion roller A; 4. Water absorption roller A; 5. Spray pipe B; 6. Elastic extrusion roller B; 7. Water absorption roller B; 8. Tension roller; 9. Conductive roller or guide roller; 10. Aluminum coil; 11. Water collection tank B; 12. Water collection tank A; 13. Spray head I; Degreasing section II; Moisture treatment section A; III. Washing section IV; Moisture treatment section B. DETAILED DESCRIPTION

[0020] The technical solution of this utility model will be further described in detail below with reference to the accompanying drawings.

[0021] like Figure 1 and Figure 2 As shown, this utility model provides a surface pretreatment device for a fully automatic production line of anodized aluminum coils, including an oil removal treatment section I, a moisture treatment section AII, a water washing treatment section III, and a moisture treatment section BIV arranged in sequence.

[0022] The degreasing section I includes multiple sets of brush rollers arranged in sequence and multiple sets of spray groups A arranged in sequence, with the multiple sets of brush rollers and multiple sets of spray groups A staggered from each other; the brush rollers consist of two symmetrical brush rollers 1, and the spray groups A consist of two symmetrical spray pipes A2.

[0023] The moisture treatment section AⅡ includes multiple sets of elastic extrusion rollers A arranged in sequence and multiple sets of water absorption rollers A arranged in sequence, with the multiple sets of elastic extrusion rollers A and multiple sets of water absorption rollers A arranged in front and behind; the elastic extrusion rollers A consists of two symmetrical elastic extrusion rollers A3, and the water absorption rollers A consists of two symmetrical water absorption rollers A4.

[0024] Among them, the water washing treatment section III includes multiple sets of spray groups B arranged in sequence; spray group B consists of two symmetrical spray pipes B5, one above the other.

[0025] The moisture treatment section BⅣ includes multiple sets of elastic squeezing rollers B arranged in sequence and multiple sets of water-absorbing rollers B arranged in sequence, with the multiple sets of elastic squeezing rollers B and multiple sets of water-absorbing rollers B arranged in front and behind; the elastic squeezing rollers B consists of two symmetrical elastic squeezing rollers B6, and the water-absorbing rollers B consists of two symmetrical water-absorbing rollers B7.

[0026] Specifically, a common water collection tank A12 is provided below the oil removal treatment section I and the moisture treatment section AII, mainly used to collect the wastewater generated by the oil removal treatment section I; a common water collection tank B11 is provided below the water washing treatment section III and the moisture treatment section BIV, mainly used to collect the wastewater generated by the water washing treatment section III; compared with the wastewater generated by the oil removal treatment section I, the wastewater generated by the water washing treatment section III has a lower dirt content, and the two are collected separately, which facilitates separate treatment in the future, thereby further reducing the difficulty and cost of treatment.

[0027] Specifically, spray pipe A2 contains a neutral, environmentally friendly degreasing agent, while spray pipe B5 contains water. The neutral, environmentally friendly degreasing agent has a pH of 7, is non-corrosive, environmentally safe, and will not damage the aluminum coil 10 or production equipment such as spray pipe A2 and water collection tank A12. Furthermore, the neutral, environmentally friendly degreasing agent and water used in the entire pretreatment process will not generate acidic wastewater, alkaline wastewater, or sludge formed after acid-base neutralization. This results in less pollution, lower wastewater treatment costs, lower environmental governance costs, and indirectly reduces production costs.

[0028] Specifically, both spray pipe A2 and spray pipe B5 have multiple evenly distributed spray heads 13 on their working sides.

[0029] Specifically, the spray pipe A2 is set to swing left and right, and the spray head 13 of the spray pipe B5 is set to tilt at a certain angle, preferably tilted in the opposite direction of the continuous movement of the aluminum coil 10. The spraying and cleaning effect is better after the left and right swing setting and the tilt setting.

[0030] Specifically, the brush roller 1 is an alumina wire brush roller, which can remove surface burrs and mechanical marks from the aluminum coil 10, increase surface smoothness and gloss, and achieve the purpose of cleaning.

[0031] Specifically, the elastic extrusion rollers A3 and B6 are epoxy resin rollers, silicone rollers, or rubber rollers, with epoxy resin rollers being preferred due to their high cost-effectiveness.

[0032] Specifically, the absorbent rollers A4 and B7 are made of sponge, PVC, or aerogel, with sponge rollers being preferred due to their high cost-effectiveness.

[0033] After the above installation is completed, this utility model can be put into use. During use, the aluminum coil 10 travels sequentially between multiple sets of two brush rollers 1, multiple sets of two spray pipes A2, multiple sets of two elastic extrusion rollers A3, multiple sets of two water absorption rollers A4, multiple sets of two spray pipes B5, multiple sets of two elastic extrusion rollers B6, and multiple sets of two water absorption rollers B7 to complete the surface pretreatment work. After the surface pretreatment is completed, the aluminum coil 10 quickly enters the conductive roller or guide roller 9 through the tension roller 8, and quickly contacts the conductive roller to conduct electricity, so that it becomes conductive before the oxide scale is formed, or the electrolyte is quickly introduced through the guide roller to avoid excessive contact with air and natural oxidation, reduce resistance, and be more conducive to the subsequent growth of oxide film in the oxidation tank.

[0034] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A surface pretreatment device for a fully automated production line of anodized aluminum coils, characterized in that: The system includes an oil removal section, a water washing section, and a moisture treatment section B arranged in sequence. The oil removal section includes multiple sets of brush rollers and multiple sets of spray groups A arranged in sequence, with the multiple sets of brush rollers and multiple sets of spray groups A staggered from each other. The water washing section includes multiple sets of spray groups B arranged in sequence. The moisture treatment section B includes multiple sets of elastic squeeze rollers B and multiple sets of water absorption rollers B arranged in sequence, with the multiple sets of elastic squeeze rollers B and multiple sets of water absorption rollers B arranged in front of and behind each other. The brush roller group consists of two symmetrical brush rollers, the elastic squeeze roller group B consists of two symmetrical elastic squeeze rollers, the water absorption roller group B consists of two symmetrical water absorption rollers, and the spray group A and the spray group B consist of two symmetrical spray pipes A and B, respectively.

2. The surface pretreatment device for the fully automated anodized aluminum coil production line according to claim 1, characterized in that: A moisture treatment section A is provided between the degreasing treatment section and the washing treatment section. The moisture treatment section A includes multiple sets of elastic extrusion rollers A arranged in sequence and multiple sets of water absorption rollers A arranged in sequence. The multiple sets of elastic extrusion rollers A and multiple sets of water absorption rollers A are arranged in front of and behind each other. The elastic extrusion rollers A consists of two symmetrical elastic extrusion rollers A, one above the other, and the water absorption rollers A consists of two symmetrical water absorption rollers A, one above the other.

3. The surface pretreatment device for the fully automated anodized aluminum coil production line according to claim 1, characterized in that: The degreasing section and the moisture treatment section A are provided with a common water collection tank A below them, and the washing section and the moisture treatment section B are provided with a common water collection tank B below them.

4. The surface pretreatment device for a fully automated anodized aluminum coil production line according to claim 1, 2, or 3, characterized in that: The spray pipe A contains a neutral, environmentally friendly degreasing agent, while the spray pipe B contains water.

5. The surface pretreatment device for a fully automated anodized aluminum coil production line according to claim 1, 2, or 3, characterized in that: Both spray pipe A and spray pipe B have multiple evenly distributed spray heads on their working sides.

6. The surface pretreatment device for the fully automated anodized aluminum coil production line according to claim 5, characterized in that: The spray pipe A is swaying left and right, and the spray head of the spray pipe B is tilted at a certain angle.

7. The surface pretreatment device for a fully automated anodized aluminum coil production line according to claim 1, 2, or 3, characterized in that: The brush roller is an alumina wire brush roller.

8. The surface pretreatment device for a fully automated anodized aluminum coil production line according to claim 2 or 3, characterized in that: The elastic extrusion roller A and the elastic extrusion roller B are epoxy resin rollers, silicone rollers or rubber rollers.

9. The surface pretreatment device for a fully automated anodized aluminum coil production line according to claim 2 or 3, characterized in that: The water-absorbing roller A and the water-absorbing roller B are sponge rollers, PVC rollers, or aerogel rollers.

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