Aluminum product coating pretreatment device

Abstract

The utility model relates to the technical field of aluminum product processing, in particular to an aluminum product coating pretreatment device which comprises a workbench, a plurality of containing cavities used for containing different treating fluids are formed in the workbench, and the containing cavities are respectively used for cleaning agent treatment, water washing, aluminum film-forming agent treatment and secondary water washing. A telescopic piece is connected to the workbench through a rotation driving piece, a bearing piece is arranged at the movable end of the telescopic piece, and a plurality of bearing baskets used for bearing aluminum product workpieces are connected to the bearing piece through movable telescopic rods. According to the surface treatment device, through intermittent rotation of the multiple containing baskets, the multiple containing baskets automatically and sequentially flow among the different containing cavities, so that smooth connection among multiple treatment steps is achieved, the treatment efficiency is improved, and the treatment efficiency is improved. All the treatment steps are independent of one another and can treat the aluminum products at the same time, the aluminum product transferring and waiting time is shortened, and the treatment efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to aluminum product processing technical field especially is related to a kind of aluminum product coating pretreatment device. BACKGROUND

[0002] Aluminum product surface usually exists natural oxide film, its structure is relatively loose, and possibly have dirt, dust and other pollutants, in order to provide better bottom protection for coating, usually need to be pretreated before spraying, to remove these impurities, make aluminum surface form uniform, rough microstructure, increase the contact area of coating and aluminum matrix, so as to improve the adhesion of coating, ensure that coating is not easy to fall off, prolong the service life of coating.

[0003] Currently, the treatment of aluminum products usually goes through four processes of cleaning agent treatment, water washing, aluminum film forming agent treatment and secondary water washing. The current pre-treatment processes of aluminum products before spraying, such as oil removal, water washing, film forming and secondary water washing, are usually completed in independent equipment or stations, which requires transferring the products between multiple devices, consumes a lot of manpower and time, and the processes are relatively independent, so the equipment running and waiting time accumulates, resulting in a long pretreatment time after the whole pretreatment process.

[0004] Based on the above situation, we propose an aluminum product coating pretreatment device to solve the above problems. CONTENT OF THE UTILITY MODEL

[0005] The utility model provides a kind of aluminum product coating pretreatment device to solve the problems in prior art.

[0006] The technical problem solved by the utility model is realized by the following technical scheme:

[0007] An aluminum product coating pretreatment device includes a workbench, a plurality of loading cavities for loading different treatment liquids are formed in the workbench, which are used for cleaning agent treatment, water washing, aluminum film forming agent treatment and secondary water washing respectively, a telescopic member is connected to the workbench through a rotating drive member, a receiving member is provided at the movable end of the telescopic member, a plurality of loading baskets for loading aluminum product workpieces are connected to the receiving member through movable telescopic rods, the telescopic member is used to drive the loading baskets into the loading cavities to contact the treatment liquids for surface treatment, the rotating drive member is used to drive the loading baskets to move from the upstream loading cavities to the downstream loading cavities for subsequent surface treatment processes, realizing the continuity of multiple treatment steps.

[0008] Preferably, a spraying mechanism for spraying water on aluminum products is provided in the loading cavity for water washing, the spraying mechanism includes a water spraying ring arranged in the loading cavity and a water delivery pipe connected between the loading cavity and the water spraying ring, and a water pump is provided on the water delivery pipe.

[0009] Preferably, the inner wall of the loading cavity for water washing is provided with a limiting piece for limiting the lowered position of the loading basket.

[0010] Preferably, the loading cavity for aluminum film forming treatment is in a circular arc structure, and when the plurality of loading baskets are intermittently rotated, the loading baskets can move from one side to the other side of the aluminum film forming treatment loading cavity to realize long-time soaking film forming.

[0011] Preferably, a flow guide part is arranged between two adjacent loading cavities, and the flow guide part is arranged downward from the loading cavity at the downstream end to the loading cavity at the upstream end.

[0012] Preferably, the loading cavity for cleaning agent treatment and aluminum film forming agent treatment is provided with an ultrasonic generator.

[0013] Preferably, a redundancy cavity is further included, which is located at the downstream end of the secondary water washing loading cavity and is used for taking and placing aluminum products.

[0014] The utility model has the beneficial effect that through the intermittent rotation of the plurality of loading baskets, automatic sequential flow transfer between different loading cavities is realized, smooth connection between a plurality of processing steps is realized, each processing step is independent and the aluminum products can be processed at the same time, the transfer and waiting time of the aluminum products is reduced, and the processing efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical scheme in the embodiment of the utility model or the prior art, the drawings needed to be used in the embodiment or the prior art description will be briefly introduced below, and obviously, the drawings in the following description are only some embodiments of the utility model, and other drawings can be obtained according to these drawings without creative labor for those skilled in the art.

[0016] Figure 1 The utility model provides an isometric structure schematic diagram;

[0017] Figure 2 The utility model provides a work flow schematic diagram;

[0018] Figure 3 The utility model provides a workbench cross section structure schematic diagram.

[0019] In the drawing, 1, workbench;11, loading cavity;12, flow guide part;2, rotating driving part;3, telescopic part;4, bearing part;41, movable telescopic rod;5, loading basket;6, water spraying ring;61, water pipe;62, water pump;7, limiting piece;8, ultrasonic generator;9, redundancy cavity. DETAILED DESCRIPTION

[0020] In order to make the technical means, creative features, purposes and effects of the utility model easy to understand, the utility model is further described below in combination with specific drawings.

[0021] Referring to Figures 1-3 As shown in the drawings, an aluminum product coating pretreatment device includes a workbench 1, a plurality of loading cavities 11 for loading different treatment liquids are formed on the workbench 1, and are respectively used for cleaning agent treatment, water washing, aluminum film forming agent treatment, and secondary water washing. Before spraying the aluminum product, the product generally needs to go through the above four processes. When the cleaning agent is cleaned, the aluminum product is soaked in the cleaning agent, so that the cleaning agent fully contacts the aluminum surface, and impurities such as oil stains, dust, and oxide scales are removed. Then, the first water washing is performed to remove the residual cleaning agent on the surface. After that, the aluminum product is soaked in the aluminum film forming agent, so that the film forming agent chemically reacts with the aluminum surface, and a protective film is formed on the surface. Finally, the secondary water washing is performed, so that the residual film forming agent and impurities on the product surface are dissolved and diluted by water, thereby realizing the pretreatment before spraying. A telescopic piece 3 is connected to a rotating driving piece 2 on the workbench 1, a movable end of the telescopic piece 3 is provided with a receiving piece 4, a plurality of loading baskets 5 are connected to the receiving piece 4 through movable telescopic rods 41, and the telescopic piece 3 is used to drive the loading baskets 5 to enter the loading cavities 11 to contact the treatment liquid and perform surface treatment. The rotating driving piece 2 is used to drive the loading baskets 5 to move from an upstream loading cavity 11 to a downstream loading cavity 11 to perform subsequent surface treatment processes. In use, the aluminum product is placed in the loading basket 5, then the rotating driving piece 2 drives the loading basket 5 to correspond to the loading cavity 11, and then the telescopic piece 3 drives the loading basket 5 to move downward into the loading cavity 11, so that the plurality of loading baskets 5 can simultaneously perform different pretreatment work, and the efficiency is improved. When the treatment is completed, the telescopic piece 3 drives the loading basket 5 to move upward, and then the rotating driving piece 2 drives it to rotate again. The rotating direction of the rotating driving piece 2 is consistent with the direction of the aluminum product pretreatment step, that is, the cleaning agent treatment, the water washing, the aluminum film forming agent treatment, and the secondary water washing, so that the previous loading basket 5 moves above the next loading cavity 11 to prepare for the next step of pretreatment work. For example, after the first water washing, the aluminum film forming agent treatment is prepared to be performed, so as to realize the continuity of the plurality of treatment steps, and reduce the rotation of the rotating driving piece 2. The rotating driving piece 2 can adopt a servo motor or other device capable of driving the receiving piece 4 to intermittently rotate, and the telescopic piece 3 can adopt a hydraulic rod or the like.

[0022] In addition, a redundant cavity 9 is further arranged on the workbench 1, the redundant cavity 9 is located at the downstream end of the loading cavity 11 for the secondary water washing, and is used to perform the taking and placing of the aluminum product. After the secondary water washing, the pretreatment work of the aluminum product is basically completed. At this time, the aluminum product in the loading basket 5 in the redundant cavity 9 can be taken out, and then the untreated product is re-placed to wait for the pretreatment work. When the aluminum product is taken and placed, the remaining processes can be normally performed.

[0023] Referring to Figure 3 As shown, further, the water spraying mechanism is arranged in the loading cavity 11 for water washing and secondary water washing, and comprises a water spraying ring 6 arranged in the loading cavity 11 and a water pipe 61 connected between the loading cavity 11 and the water spraying ring 6, and the water pipe 61 is provided with a water pump 62. The water pump 62 is used to draw the clean water in the loading cavity 11 to spray on the aluminum products in the loading basket 5 through the water spraying ring 6, so that the flowing water can wash the surface of the aluminum products, and the cleaning effect is better than simple soaking.

[0024] Further, the loading cavity 11 for water washing is provided with a limiting piece 7 for limiting the descending position of the loading basket 5. When the loading basket 5 is moved downward in the loading cavity 11, the loading basket 5 will be in contact with the limiting piece 7, and the loading basket 5 will not continue to move downward. The movable telescopic rod 41 can be composed of at least two sliding connecting rods. At this time, the length of the corresponding movable telescopic rod 41 will be compressed to shorten the length. The loading baskets 5 in the other loading cavities 11, such as the cleaning agent processing loading cavity 11 and the aluminum film forming agent processing loading cavity 11, will continue to descend and immerse in the liquid, so that the water flow can be used to wash the aluminum products during water washing, and the aluminum products can be prevented from being soaked in the clean water.

[0025] Referring to Figure 2 As shown, further, the pre-treatment time required by each pre-treatment step is inconsistent. For example, the film forming process is relatively complex, and a certain time is required for the film forming agent to fully react with the aluminum surface to form a uniform and dense protective film. This process can take 10-30 minutes, while other water washing steps or cleaning liquid processing steps can take a shorter time. Therefore, the loading cavity 11 for aluminum film forming processing is in a circular arc structure, and the loading baskets 5 can move from one side to the other side of the aluminum film forming processing loading cavity 11 when the multiple loading baskets 5 are intermittently rotated, so as to achieve long-time soaking for film forming. When the loading baskets 5 are rotated with the rotating driving member 2, the cleaning liquid processing and water washing steps take 10 minutes, and the 10-minute aluminum film forming processing time is not enough. Therefore, when the rotating driving member 2 drives the multiple loading baskets 5 to move again, the loading baskets 5 originally located in the aluminum film forming processing loading cavity 11 will move from one position to another position, that is, they will be soaked again for 10 minutes, so as to realize that the aluminum film forming processing time is longer than the time in other processing steps, and to ensure the aluminum film forming processing effect.

[0026] The ultrasonic generator 8 is arranged in the containing cavity 11 for cleaning agent treatment and aluminum film forming agent treatment, and micro bubbles can be generated through cavitation of ultrasonic waves, which can generate impact force when the bubbles break on the surface of aluminum products, and can help the cleaning agent to remove oil stains and impurities on the surface of the aluminum products, and can also make the film forming agent more evenly adhere to the surface of the aluminum products, improve the quality and uniformity of the film forming, reduce the dependence on manual stirring or turning of the aluminum products, reduce manual operation, and improve the automation degree of production.

[0027] Referring to Figure 3 Further, the flow guide part 12 is arranged between the two adjacent containing cavities 11, and the flow guide part 12 is arranged downwardly from the containing cavity 11 at the downstream end to the containing cavity 11 at the upstream end. When the containing basket 5 moves into the containing cavity 11 at the downstream end, the processing liquid in the last containing cavity 11, such as the film forming agent, is carried into the containing cavity 11 for secondary water washing, and the cleaning water for secondary water washing is polluted. Therefore, when the telescopic part 3 drives the containing basket 5 to move upwardly, the water in the containing basket 5 can be drained after moving out of the containing cavity 11 and staying for a certain period of time, and the rotating driving part 2 can drive the containing basket 5 to rotate slowly, so that the liquid can be drained as much as possible. The liquid falling on the flow guide part 12 can enter the containing cavity 11 at the upstream end again through the flow guide part 12. For example, the aluminum film forming agent after the aluminum film forming treatment can enter the containing cavity 11 for aluminum film forming agent treatment again after falling on the flow guide part 12 when entering the secondary water washing, which can avoid waste of processing liquid and prevent the processing liquid from entering the containing cavity 11 at the downstream end to pollute the liquid in the containing cavity 11 at the downstream end.

[0028] The basic principle and main features of the present application and the advantages of the present application are shown and described above. It should be understood by those skilled in the art that the present application is not limited by the above embodiments, and the above embodiments and descriptions in the specification are only to illustrate the principle of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A pretreatment apparatus for coating aluminum products, characterized in that, The system includes a workbench (1) with multiple cavities (11) for holding different treatment liquids, which are used for cleaning agent treatment, water washing, aluminum film-forming agent treatment and secondary water washing, respectively. The workbench (1) is connected to a telescopic component (3) via a rotating drive component (2). The movable end of the telescopic component (3) is provided with a receiving component (4). The receiving component (4) is connected to multiple baskets (5) for holding aluminum product workpieces via a movable telescopic rod (41). The telescopic component (3) is used to drive the baskets (5) into the cavities (11) to contact the treatment liquid for surface treatment. The rotating drive component (2) is used to drive the baskets (5) from the upstream cavities (11) to the downstream cavities (11) for subsequent surface treatment processes, so as to realize the continuous operation of multiple treatment steps.

2. The aluminum product pre-coating treatment apparatus according to claim 1, characterized in that, The container cavity (11) for water washing is provided with a spraying mechanism for spraying water onto aluminum products. The spraying mechanism includes a water spraying ring (6) disposed in the container cavity (11) and a water supply pipe (61) connected between the container cavity (11) and the water spraying ring (6). A water pump (62) is provided on the water supply pipe (61).

3. The aluminum product coating pretreatment apparatus according to claim 2, characterized in that, The inner wall of the container cavity (11) used for washing is provided with a limiting member (7) for limiting the descent position of the container basket (5).

4. The aluminum product pre-coating treatment apparatus according to claim 1, characterized in that, The container (11) for aluminum film formation treatment has an arc-shaped structure, and when the multiple container baskets (5) rotate intermittently, the container baskets (5) can move from one side to the other side of the container (11) for aluminum film formation treatment to achieve long-term immersion film formation.

5. The aluminum product coating pretreatment apparatus according to claim 1, characterized in that, A guide section (12) is provided between two adjacent receiving cavities (11), and the guide section (12) is inclined downward from the receiving cavity (11) located at the downstream end to the receiving cavity (11) located at the upstream end.

6. The aluminum product coating pretreatment apparatus according to claim 1, characterized in that, An ultrasonic generator (8) is installed in the container cavity (11) used for cleaning agent treatment and aluminum film-forming agent treatment.

7. The aluminum product coating pretreatment apparatus according to claim 1, characterized in that, It also includes a redundant cavity (9), which is located downstream of the secondary water washing container cavity (11) and is used for loading and unloading aluminum products.

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