Color coating aluminum coil pretreatment platform with dust removal function
By combining the elimination of static electricity with ion air knives and the adsorption of dust by negative pressure fans, the problem of removing complex contaminants from the surface of aluminum coils was solved, and the adhesion and smoothness of the aluminum coil coating were improved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HONGXIN NEW MATERIAL TECH (SHANDONG) CO LTD
- Filing Date
- 2025-06-16
- Publication Date
- 2026-07-14
AI Technical Summary
Existing aluminum coil surface dust removal equipment is ineffective in removing composite and electrostatically adsorbed submicron-sized particulate contaminants from the lower surface and edge areas, affecting coating adhesion and surface smoothness.
An ion air knife is used to eliminate static electricity, combined with an industrial negative pressure fan and a dual-pipe adsorption of dust. An adjustable silicone roller is used to closely adhere to the surface of the aluminum coil, achieving static electricity elimination and dust removal, and preventing secondary adsorption of coating dust.
It achieves comprehensive dust removal on the surface of aluminum coils, improves coating adhesion and surface smoothness, and ensures the quality of subsequent coating processes.
Smart Images

Figure CN224486611U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of aluminum coil processing technology, specifically to a pre-treatment table for color-coated aluminum coils with dust removal function. Background Technology
[0002] The color-coated aluminum coil pretreatment station is a key piece of equipment in the aluminum coil surface coating production line. It is an automated workstation specifically designed to systematically treat the surface of aluminum coils before color coating processes such as spraying and roller coating. Its core function is to remove contaminants from the aluminum coil surface through multiple means, including physical and chemical methods, and to activate the metal surface, ensuring that the adhesion, uniformity, and durability of subsequent coatings meet industry standards.
[0003] In the current aluminum coil production and storage process, the surface of the coil generally suffers from a complex contaminant problem: on the one hand, oil and carbon residues from the rolling process and dust from the storage environment will form a mixed deposit on both sides of the aluminum coil; on the other hand, static electricity generated by friction during the unwinding process will exacerbate the adsorption effect of micron-sized particles. However, existing dust removal equipment has significant defects. Most of them adopt a single negative pressure dust collection structure, which can only clean the exposed upper surface, while the lower surface and edge areas of the contact roller are difficult to treat effectively, resulting in insufficient actual dust removal efficiency. More seriously, the submicron-sized particles adsorbed by electrostatics cannot be completely removed by traditional mechanical dust removal. These residual contaminants will directly affect the adhesion and surface smoothness of subsequent coatings. Utility Model Content
[0004] The purpose of this invention is to provide a pretreatment table for color-coated aluminum coils with dust removal function, so as to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a pretreatment table for color-coated aluminum coils with dust removal function, including a pretreatment conveyor frame, and further comprising:
[0006] The conveying rollers are rotatably installed on both sides inside the pretreatment conveying frame. An industrial negative pressure fan is fixedly connected to one side of the pretreatment conveying frame. A first support plate and a second support plate are fixedly connected to the top of the pretreatment conveying frame. A first dust extraction shell is fixedly connected inside the first support plate.
[0007] A second dust extraction shell is fixed to the inner cavity of the pretreatment conveyor frame, and a filter shell is fixedly connected to the top of the industrial negative pressure fan.
[0008] Preferably, both of the first support plates and the pretreatment conveyor are equipped with ion air knives inside, and the air outlets of the ion air knives are arranged opposite each other.
[0009] Preferably, a first silicone roller is rotatably connected inside the pretreatment conveyor frame, a fixing plate is fixedly connected to one side of the top of the pretreatment conveyor frame, and a second silicone roller is disposed between the two fixing plates.
[0010] Preferably, the fixed plate has a limiting groove inside for limiting the second silicone roller. Both ends of the second silicone roller pass through the outside of the limiting groove and are rotatably connected to the limiting plate. The top of one of the limiting plates is fixedly connected to a slide rod that is slidably connected to the inside of the fixed plate. The inside of the fixed plate is rotatably connected to a screw. The bottom of the screw is rotatably connected to the limiting plate, and the top of the screw is fixedly connected to a torsion block.
[0011] Preferably, the top of the filter housing is connected to a dual-pass pipe, and the end of the dual-pass pipe away from the filter housing extends into the interior of the first dust extraction housing and the second dust extraction housing respectively.
[0012] Preferably, a filter plate is inserted into the inside of the filter housing, and slots for limiting the installation position of the filter plate are provided on both sides of the inside of the filter housing.
[0013] Preferably, reinforcing blocks are fixedly connected to both sides of the industrial negative pressure fan, and one side of the reinforcing block is fixedly connected to the pretreatment conveyor frame.
[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0015] This invention first uses two sets of ion air knives to eliminate static electricity and physically blow away dust from both sides of the aluminum coil. Then, it uses an industrial negative pressure fan and a dual-pipe system to adsorb dust a second time. Subsequently, an adjustable second silicone roller descends and adheres to the surface of the aluminum coil. This allows for tight adhesion of aluminum coils of different thicknesses and also removes static electricity from the aluminum material after dust removal, preventing secondary adsorption of coating dust. Attached Figure Description
[0016] Figure 1 A schematic diagram of the structure of the color-coated aluminum coil pretreatment table with dust removal function provided by this utility model;
[0017] Figure 2 A top view of the structure provided for this utility model;
[0018] Figure 3 A schematic diagram of the industrial negative pressure fan provided by this utility model;
[0019] Figure 4 A schematic diagram of the silicone roller structure provided by this utility model.
[0020] In the diagram: 1. Pretreatment conveyor frame; 2. Conveyor roller; 3. Industrial negative pressure fan; 4. First support plate; 41. Second support plate; 5. First dust extraction shell; 6. Second dust extraction shell; 7. Filter shell; 8. Ion air knife; 81. First silicone roller; 9. Fixing plate; 10. Second silicone roller; 11. Limiting groove; 12. Limiting plate; 13. Sliding rod; 14. Screw; 15. Torsion block; 16. Double-pass pipe; 17. Filter plate; 18. Slot; 19. Reinforcing block. Detailed Implementation
[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0022] Please see Figures 1-4 As shown, a pre-treatment table for color-coated aluminum coils with dust removal function includes a pre-treatment conveyor frame 1, and further includes:
[0023] The conveying rollers 2 are rotatably installed on both sides inside the pretreatment conveying frame 1. An industrial negative pressure fan 3 is fixedly connected to one side of the pretreatment conveying frame 1. A first support plate 4 and a second support plate 41 are fixedly connected to the top of the pretreatment conveying frame 1. A first dust extraction shell 5 is fixedly connected inside the first support plate 4.
[0024] The second dust extraction shell 6 is fixed inside the pretreatment conveyor frame 1, and the top of the industrial negative pressure fan 3 is fixedly connected to the filter shell 7. The pretreatment conveyor frame 1, together with the conveyor roller 2, can convey and pre-treat the aluminum coil. The industrial negative pressure fan 3 facilitates the subsequent adsorption of dust on both sides of the aluminum coil. The first support plate 4 and the second support plate 41 facilitate the support of the subsequent structure. The first dust extraction shell 5, together with the second dust extraction shell 6, can isolate the dust extraction area and improve the dust extraction intensity. The filter shell 7 can filter the drawn-in dust and prevent the dust from affecting the industrial negative pressure fan 3.
[0025] Ionizing air knives 8 are installed inside both first support plates 4 and pretreatment conveyor frame 1. The air outlets of the ionizing air knives 8 are arranged opposite each other. A first silicone roller 81 is rotatably connected inside the pretreatment conveyor frame 1. A fixing plate 9 is fixedly connected to one side of the top of the pretreatment conveyor frame 1. A second silicone roller 10 is arranged between the two fixing plates 9. The principle of the two ionizing air knives 8 is that the ionizing air knives 8 ionize the air through the built-in high-voltage electrode to generate a high-density positive and negative ion flow, which quickly neutralizes the static electricity on the surface of the aluminum coil within 0.1 seconds. At the same time, the laminar air curtain formed by compressed air is used to non-contactly blow the surface at a 30° tilt angle, simultaneously realizing static electricity elimination and dust removal. This is existing technology, which is clearly known to those skilled in the art, and will not be elaborated here. By setting the first silicone roller 81 and the second silicone roller 10, the static electricity accumulation of the aluminum coil after dust extraction can be blocked to prevent secondary adsorption of coating dust.
[0026] The fixed plate 9 has a limiting groove 11 inside for limiting the second silicone roller 10. Both ends of the second silicone roller 10 pass through the outer side of the limiting groove 11 and are rotatably connected to the limiting plate 12. The top of one of the limiting plates 12 is fixedly connected to a slide rod 13 that is slidably connected to the inside of the fixed plate 9. The inside of the fixed plate 9 is rotatably connected to a screw 14. The bottom of the screw 14 is rotatably connected to the limiting plate 12, and the top of the screw 14 is fixedly connected to a torsion block 15. When the user needs to adjust the position of the second silicone roller 10... When the roller descends to fit aluminum coils of different thicknesses, the torsion block 15 is rotated. When the torsion block 15 rotates, it will drive the screw 14 to rotate. At this time, the limiting plate 12 is pressed down by the descending screw 14, which drives the second silicone roller 10 to move within the limiting groove 11. Meanwhile, the limiting plate 12 on the other side will drive the slide bar 13 to slide down within the fixed plate 9, thereby ensuring the stability of the second silicone roller 10 during the descent process. This can prevent the accumulation of static electricity in the aluminum coil after dust extraction and avoid secondary adsorption of coating dust.
[0027] A double-pipe 16 is connected to the top of the filter housing 7. The end of the double-pipe 16 away from the filter housing 7 passes through the interior of the first dust extraction housing 5 and the second dust extraction housing 6 respectively. A filter plate 17 is inserted into the interior of the filter housing 7. Slots 18 for limiting the installation position of the filter plate 17 are opened on both sides of the interior of the filter housing 7. Reinforcing blocks 19 are fixedly connected to both sides of the industrial negative pressure fan 3. One side of the reinforcing block 19 is fixedly connected to the pretreatment conveyor frame 1 and is installed on the top of the filter housing 7 through the double-pipe 16. The interior of the filter housing 7 is connected to the industrial negative pressure fan 3. Therefore, when the industrial negative pressure fan 3 is started, the filter housing 7... The double-pipe 16 creates a negative pressure inside, which, together with the first dust extraction shell 5 and the second dust extraction shell 6, removes dust from the surface of the aluminum coil to achieve the dust removal effect. The reinforcing block 19 is fixed between the industrial negative pressure fan 3 and the pretreatment conveyor frame 1, which can improve the connection strength between the two and ensure its stability and durability after long-term use. The filter plate 17 is inserted into the slot 18 inside the filter shell 7, which can securely position the filter plate 17. The slot 18 also has a certain angle, which can prevent the filter plate 17 from falling off naturally and also facilitate the disassembly and cleaning of the filter plate 17.
[0028] Working principle: First, the aluminum coil is placed on the conveyor roller 2 between two ion air knives 8, the first dust extraction shell 5, the second dust extraction shell 6, and the first silicone roller 81 and the second silicone roller 10. Then, the aluminum coil is conveyed according to the remote processing equipment. At this time, the torsion block 15 is rotated first. When the torsion block 15 rotates, it will drive the screw 14 to rotate. At this time, the limiting plate 12 is pressed down by the descending screw 14, which drives the second silicone roller 10 to move within the limiting groove 11. Meanwhile, the limiting plate 12 on the other side will drive the slide rod 13 to slide down within the fixed plate 9, thereby ensuring the stability of the second silicone roller 10 during the descent and pressing the aluminum coil between the first silicone roller 81 and the second silicone roller 10. Then, as the aluminum coil is conveyed, the ion air knives are turned on. The air knife 8 ionizes the air through its built-in high-voltage electrode, generating a high-density positive and negative ion flow that quickly neutralizes the static electricity on the aluminum coil surface within 0.1 seconds. Simultaneously, it utilizes a laminar air curtain formed by compressed air to non-contactly blow the surface at a 30° angle, achieving simultaneous static electricity elimination and dust removal. Subsequently, the industrial negative pressure fan 3 is turned on, creating negative pressure inside the filter housing 7 and the dual-pass pipe 16. This, in conjunction with the first dust extraction housing 5 and the second dust extraction housing 6, draws the dust from the aluminum coil surface into the filter housing 7, where it is filtered by the filter plate 17, thus achieving the dust removal effect. Finally, the aluminum coil passes over the surfaces of the first silicone roller 81 and the second silicone roller 10, preventing static electricity accumulation and secondary adsorption of coating dust after dust extraction.
[0029] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A color-coated aluminum coil pretreatment platform with dust removal function, comprising a pretreatment conveying frame (1), characterized in that, Also includes: Rotary conveying rollers (2) are installed on both sides inside the pretreatment conveying frame (1). An industrial negative pressure fan (3) is fixedly connected to one side of the pretreatment conveying frame (1). A first support plate (4) and a second support plate (41) are fixedly connected to the top of the pretreatment conveying frame (1). A first dust extraction shell (5) is fixedly connected inside the first support plate (4). A second dust extraction shell (6) is fixed to the inner cavity of the pretreatment conveyor (1), and a filter shell (7) is fixedly connected to the top of the industrial negative pressure fan (3).
2. The color coating aluminum coil pretreatment table with dust removal function according to claim 1, characterized in that: Ion air knives (8) are provided inside both of the first support plates (4) and the pretreatment conveyor (1), and the air outlets of the ion air knives (8) are arranged opposite to each other.
3. The color-coated aluminum coil pretreatment table with dust removal function according to claim 1, characterized in that: The pretreatment conveyor (1) is rotatably connected to a first silicone roller (81), and a fixing plate (9) is fixedly connected to one side of the top of the pretreatment conveyor (1). A second silicone roller (10) is arranged between the two fixing plates (9).
4. The color-coated aluminum coil pretreatment table with dust removal function according to claim 3, characterized in that: The fixed plate (9) has a limiting groove (11) for limiting the second silicone roller (10) inside. Both ends of the second silicone roller (10) pass through the outside of the limiting groove (11) and are rotatably connected to a limiting plate (12). The top of one of the limiting plates (12) is fixedly connected to a slide rod (13) that is slidably connected to the inside of the fixed plate (9). The inside of the fixed plate (9) is rotatably connected to a screw (14). The bottom of the screw (14) is rotatably connected to the limiting plate (12). The top of the screw (14) is fixedly connected to a torsion block (15).
5. A pretreatment table for color-coated aluminum coils with dust removal function according to claim 1, characterized in that: The top of the filter housing (7) is connected to a double-pass pipe (16), and the end of the double-pass pipe (16) away from the filter housing (7) passes through the interior of the first dust extraction housing (5) and the second dust extraction housing (6) respectively.
6. A pretreatment table for color-coated aluminum coils with dust removal function according to claim 1, characterized in that: A filter plate (17) is inserted into the inside of the filter housing (7), and slots (18) for limiting the installation position of the filter plate (17) are provided on both sides inside the filter housing (7).
7. A pretreatment table for color-coated aluminum coils with dust removal function according to claim 1, characterized in that: The industrial negative pressure fan (3) is fixedly connected to both sides with reinforcing blocks (19), and one side of the reinforcing block (19) is fixedly connected to the pretreatment conveyor frame (1).