A barrier type conveying device for coating aluminum plate

Abstract

The utility model discloses a kind of blocking type conveying equipment for aluminium plate oiling, it has the bearing frame corresponding with oiling device, bearing rack is equipped with the parallel distribution belt transmission component and chain transmission component towards oiling device;The belt transmission component includes multiple transmission belts same as the rotating speed of the oiling roller of oiling device, multiple transmission belts can use the static friction with aluminium plate by circulating rotation, to make the aluminium plate transported contact with oiling roller same position each time;The chain transmission component includes multiple chains same as the rotating speed of transmission belt, multiple blocking blocks that can form blocking surface on the side of aluminium plate close to oiling device are equipped on chain, blocking surface can limit aluminium plate to keep posture stable, to ensure that each aluminium plate contact with oiling roller same position. To solve the problem that aluminium plate is easily affected to cause inclination in the process that existing aluminium plate is conveyed into oiling roller and is oiled.

Description

Technical Field

[0001] This utility model relates to the field of aluminum plate processing technology, and specifically to a barrier-type conveying device for coating aluminum plates with oil. Background Technology

[0002] In the industrial sector, aluminum sheets are widely used in aerospace, automotive manufacturing, and electronic equipment industries due to their advantages such as lightweight, ease of processing, and excellent thermal conductivity. In the aluminum sheet processing flow, stacked aluminum sheets are first transferred to an aluminum sheet layering device via forklift. This device separates the stacked aluminum sheets one by one and places them in a standardized manner onto the subsequent transport structure. This transport structure plays two main roles: firstly, it allows operators to randomly inspect the passing aluminum sheets, promptly verifying their appearance quality and dimensional accuracy; secondly, it ensures that the aluminum sheets are transported to the oiling process in an individual and stable manner, laying the foundation for the orderly implementation of subsequent coating operations.

[0003] However, aluminum sheets are chemically reactive, and even under the protection of the aforementioned transfer and transport processes, their surface is still prone to reacting with air and moisture, leading to oxidation and corrosion. This not only damages the smoothness of the aluminum sheet surface but also reduces its mechanical properties, ultimately affecting the quality and service life of the finished product. Therefore, protective treatment of the aluminum sheet surface is an indispensable and necessary step in the processing.

[0004] Currently, coating with protective oil is one of the mainstream technologies for surface protection of aluminum plates. Protective oil possesses excellent barrier properties, adhesion, and weather resistance, forming a continuous and uniform protective film on the aluminum plate surface. This effectively isolates the plate from external corrosive media and reduces surface scratches during handling and stacking, providing reliable protection for subsequent stamping, welding, and other processing steps. Among various coating processes, roller coating is the preferred solution for most aluminum plate processing companies due to its simple equipment structure, high coating efficiency, and compatibility with continuous production lines.

[0005] The core principle of the oiling roller coating process is to precisely deliver protective oil to the surface of the oiling roller through an oil supply system, forming a uniform oil film of a preset thickness on the roller surface. Then, through the rolling contact and certain contact pressure between the oiling roller and the aluminum plate, the oil film is completely transferred to the surface of the aluminum plate, thus completing the coating operation. However, in actual production, this process has obvious technical pain points: after the oiling roller has finished coating the previous aluminum plate, due to uneven contact pressure distribution, differences in the micro-morphology of the aluminum plate surface, and the fluidity of the oil itself, the originally uniform oil film on its surface may exhibit localized gaps, uneven thickness, or localized accumulation.

[0006] In theory, if subsequent aluminum plates can completely cover the contact area between the previous aluminum plate and the oiling roller, the uneven oil film on the oiling roller surface can be corrected to some extent through new rolling contact. However, in actual production lines, even though the aluminum plate layering device places the aluminum plates onto the conveying structure in a standardized posture, issues such as deviations in the conveying structure's operational precision and inconsistent local friction coefficients between the aluminum plate and the conveying surface can still cause the aluminum plates to shift position or tilt during transport. Once the aluminum plate enters the coating area of ​​the oiling roller in a tilted state, it will directly prevent it from completely falling into the contact area between the previous aluminum plate and the oiling roller, thus forming an uncovered "non-contact area" on the surface of the oiling roller. The uneven oil film remaining in this area cannot be corrected. This residual uneven oil film will directly transfer to the surface of subsequent aluminum plates, causing problems such as excessively thick, thin, or even no oil coating in some areas, severely damaging the uniformity and integrity of the coating, significantly weakening the protective effect, and posing a great threat to the subsequent processing and quality assurance of the aluminum plates. Utility Model Content

[0007] The purpose of this invention is to solve the problem that aluminum plates are easily affected and tilt during the oiling process of existing aluminum plates being fed into the oiling roller, and to provide a blocking conveying device for oiling aluminum plates.

[0008] To address the shortcomings of the aforementioned technical problems, the present invention adopts the following technical solution: a blocking conveyor for coating aluminum plates, which has a support frame corresponding to the coating device, and the support frame is provided with belt conveyor components and chain conveyor components distributed parallel to the coating device. The belt conveyor assembly includes multiple conveyor belts rotating at the same speed as the oiling roller of the oiling device. The multiple conveyor belts can rotate in a cycle and utilize the static friction with the aluminum plate to ensure that the aluminum plate being conveyed contacts the oiling roller at the same position each time. The chain transmission assembly includes multiple chains rotating at the same speed as the conveyor belt. Each chain has multiple blocking blocks that form a blocking surface on the side of the aluminum plate near the oiling device. The blocking surface restricts the aluminum plate to maintain a stable posture, thereby ensuring that each aluminum plate is in contact with the oiling roller at the same position.

[0009] As a further optimization of the blocking conveyor for coating aluminum plates according to this utility model: each of the conveyor belts is rotatably connected to two conveyor wheels, the two conveyor wheels are arranged along the rotation direction of the aluminum plate, the conveyor wheels are connected to a drive shaft via a key, and the drive shaft is rotatably connected to the support frame.

[0010] As a further optimization of the barrier conveyor for coating aluminum plates according to this utility model: the conveyor belt is made of high-strength polyester fiber, and the surface of the conveyor belt is covered with a layer of wear-resistant polyurethane coating.

[0011] As a further optimization of the blocking conveyor for coating aluminum plates according to this utility model: the chain is wrapped around two sprockets arranged along the conveying direction of the aluminum plate, the sprockets are connected to the chain shaft rotatably mounted on the support frame by a key, and the chain adopts a roller chain structure.

[0012] As a further optimization of the blocking conveyor for coating aluminum plates according to this utility model: the belt conveyor component is connected to a variable frequency motor through a coupling, and the belt conveyor component and the chain conveyor component are connected by a gear transmission component with a transmission ratio of 1.

[0013] As a further optimization of the aluminum plate oiling blocking conveyor of this utility model: the top of the blocking block is provided with a chamfer away from the oiling device to guide the aluminum plate to be placed on the conveyor assembly.

[0014] As a further optimization of the aluminum plate oiling blocking conveyor of this utility model: the bottom of the conveyor belt is slidably connected to a guide rail with a U-shaped cross-section, and the guide rail is fixedly connected to the support frame.

[0015] As a further optimization of the blocking conveyor for coating aluminum plates according to this utility model: the end of the support frame facing the coating device is fixedly connected to a guide plate by screws, and one end of the guide plate facing the coating device extends to the outer edge of the coating roller to support the aluminum plate through the gap between the support frame and the coating roller.

[0016] Compared with the prior art, the present invention has the following beneficial effects: This invention constructs a dynamically matched mechanical linkage system by precisely configuring a belt conveyor assembly that is synchronized in real time with the rotation speed of the coating roller. This ensures that the aluminum plate makes precise contact with the same preset position on the coating roller each time it enters the coating device. Furthermore, the blocking blocks on the chain conveyor assembly form a three-dimensional blocking surface in front of the aluminum plate in the conveying direction. The blocking blocks are positioned to form stable contact with the edge of the aluminum plate, and when a deviation of the aluminum plate is detected, the blocking blocks can promptly correct its posture. This dual-protection mechanism effectively solves the problems of uneven coating thickness and coating area deviation, significantly improving the consistency and stability of the aluminum plate surface treatment. Attached Figure Description

[0017] Figure 1 is a schematic diagram of the axial structure of this utility model in use; Figure 2 is a schematic diagram of the first cross-sectional structure of this utility model; The markings in the diagram are: 1. Support frame; 2. Belt transmission assembly; 201. Drive shaft; 202. Transmission wheel; 203. Transmission belt; 204. Guide rail; 3. Block; 4. Chain transmission assembly; 401. Sprocket; 402. Chain shaft; 403. Chain; 5. Guide plate; 6. Aluminum plate; 7. Oiling device. Detailed Implementation

[0018] To better understand this utility model, the following embodiments further illustrate the content of this utility model, but the content of this utility model is not limited to the following embodiments.

[0019] As shown in Figure 1, a blocking conveyor for coating aluminum plates has a support frame 1 corresponding to the coating device 7. The support frame 1 is equipped with a belt conveyor 2 and a chain conveyor 4. The belt conveyor 2 can realize the stable transmission of the aluminum plate 6. At the same time, the chain conveyor 4 and the blocking block 3 provided on the chain conveyor 4 are used to correct the attitude of the offset aluminum plate 6. Thus, when the belt conveyor 2, the chain conveyor 4 and the coating roller of the coating device 7 rotate at the same speed, the aluminum plate 6 is made to be flush with the edge of the coating device 7 and the coating roller, that is, to make contact with the coating roller of the coating device 7 at a specific position with a regular attitude, so as to complete the high-quality coating operation.

[0020] The support frame 1 is constructed entirely of high-strength steel and its structural design must be compatible with the oiling device 7. It must not only ensure sufficient load-bearing capacity to support the weight of subsequent functional components, but also guarantee that all components, after assembly, can form a precise and coordinated working relationship with the oiling device 7, avoiding equipment malfunctions due to structural misalignment. The belt conveyor assembly 2 and chain conveyor assembly 4, after speed adjustments, are linked with the oiling roller in the oiling device 7 through a precision gear transmission assembly. This ensures that the oiling roller and belt conveyor assembly 2 rotate at the same speed, while the transmission assembly matches the speed of the chain conveyor assembly 4. This fundamentally guarantees the oiling accuracy of the aluminum plate 6, a prerequisite for stable subsequent oiling operations.

[0021] As shown in Figures 1 and 2, the conveyor assembly 2, serving as the main conveying component of the aluminum plate 6, consists of a drive shaft 201, a conveyor wheel 202, a conveyor belt 203, and a guide rail 204. The drive shaft 201 is rotatably connected to the support frame 1 via a high-precision ball bearing. The bearing is filled with long-lasting grease, effectively reducing frictional loss during rotation and extending its service life. The drive shaft 201 is fixedly mounted with the conveyor wheel 202 via a key connection. The wheel surface of the conveyor wheel 202 is wrapped in rubber with anti-slip textures, significantly increasing friction with the conveyor belt 203 and reducing the probability of slippage during transmission. The conveyor belt 203 is made of high-strength polyester fiber with a wear-resistant polyurethane coating. It possesses good flexibility to accommodate the bending transmission of the conveyor wheel 202, while also being able to withstand the weight of the aluminum plate 6 without deformation. It is fitted around the two conveyor wheels 202 positioned along the transmission direction of the aluminum plate 6, forming a closed conveying loop.

[0022] To ensure that the conveyor belt 203 maintains a stable conveying trajectory during operation, a U-shaped guide rail 204 is fixedly installed on the support frame 1. The center of the guide rail 204 allows the conveyor belt 203 to pass through, providing precise guidance for its movement. When the equipment starts, the drive shaft 201 rotates at a constant speed under the drive of the corresponding variable frequency motor, which in turn drives the conveyor belt 203 to move stably along the guide rail 204 via the transmission wheel 202. At this time, the aluminum plate 6 placed on the upper surface of the conveyor belt 203 will move smoothly from the previous station to the oiling device 7 along with the conveyor belt 203 under the friction of the anti-slip coating on the surface of the conveyor belt 203, and finally smoothly enter the oiling device 7 to complete the oiling operation. Since the rotation speed of the conveyor belt 203 is the same as that of the oiling roller of the oiling device 7, the contact position between the surface of the aluminum plate 6 and the oiling roller can always remain consistent after entering the oiling device 7, effectively avoiding problems such as uneven oiling thickness and oiling area displacement caused by the difference in rotation speed.

[0023] As shown in Figures 1 and 2, multiple chain conveyor components 4 are also provided on the support frame 1, arranged parallel to the belt conveyor component 2. The chain conveyor components 4 also rotate synchronously with the belt conveyor component 2 via gear transmission components, that is, they maintain the same rotational speed as the oiling roller of the oiling device 7. Their main function is to correct the posture of the aluminum plate 6, which may deviate during transportation, ensuring that the aluminum plate 6 enters the oiling device 7 in a regular posture. The chain conveyor component 4 consists of a sprocket 401, a chain shaft 402, and a chain 403. The sprocket 401 is rotatably connected to the support frame 1 via the chain shaft 402. A deep groove ball bearing is installed at the connection between the chain shaft 402 and the support frame 1 to ensure flexible rotation of the chain shaft 402. The installation position of the chain shaft 402 is precisely calculated to match the height and horizontal position of the drive shaft 201, ensuring that the running trajectory of the chain 403 perfectly matches the conveying path of the aluminum plate 6 on the belt transmission assembly 2. This prevents excessive friction with the aluminum plate 6 and allows for timely correction when the aluminum plate 6 deviates. Simultaneously, corresponding gear transmission assemblies can be installed to connect the corresponding drive shaft 201 and chain shaft 402, achieving synchronous rotation between the chain transmission assembly 4 and the belt transmission assembly 2. The chain 403 adopts a roller chain structure, with chain links connected by pins. The pin surfaces are also treated for wear resistance. The chain 403 is wrapped around the front and rear sprockets 401, forming a circulating transmission structure. Multiple blocking blocks 3 are uniformly fixedly installed along the length of the outer surface of the chain 403. These blocking blocks 3 on the chain 403 correspond to form blocking surfaces. These blocking surfaces move synchronously with the aluminum plate 6 towards the edge of the oiling device 7, thus restricting the position of the aluminum plate 6 and maintaining its posture during transport. The surface of the blocking block 3 has an elastic layer made of nylon. Nylon not only has a certain strength and wear resistance but also good toughness, providing a buffer when colliding with the aluminum plate 6, preventing damage to its surface. The height of the blocking block 3 needs to be slightly higher than the thickness of the aluminum plate 6 on the conveyor belt 203, typically 2-3 mm higher, to ensure effective contact with the edge of the aluminum plate 6. The spacing between two adjacent blocking blocks 3 needs to be reasonably set according to the length of the aluminum plate 6 to ensure that each aluminum plate 6 can contact multiple blocking blocks 3 during transport, ensuring a corrective effect.The gear transmission assembly specifically includes a driving gear, a driven gear, and a gear cover. The driving gear is fixed to the end of the drive shaft 201 near the variable frequency motor via a key connection. The driven gear is fixed to the end of the chain shaft 402 corresponding to the driving gear via a key connection. The driving gear and driven gear have the same module and number of teeth, thus achieving a 1:1 constant speed transmission and ensuring that the chain shaft 402 and the drive shaft 201 rotate at the same speed, thereby ensuring that the running speed of the drive chain and the conveyor belt are synchronized. To prevent impurities from being drawn into the gear transmission process or to avoid safety hazards caused by accidental contact, a gear cover is provided on the outside of the driving gear and driven gear. The gear cover is fixed to the upright plate of the bracket with bolts. An observation window is provided on the gear cover, which is sealed with a transparent acrylic sheet, allowing personnel to observe the meshing status and wear of the gears at any time without affecting the normal transmission of the gears.

[0024] When the aluminum plate 6 is conveyed on the belt conveyor assembly 2, if relative slippage occurs between the belt conveyor assembly 2 and the aluminum plate 6 due to wear on the surface of the belt conveyor assembly 2, oil stains on the surface of the aluminum plate 6, or instantaneous fluctuations in the conveying speed, causing the aluminum plate 6 to tilt or deviate, as the aluminum plate 6 moves towards the oiling device 7, the edge of its deviated side will approach the blocking block 3 on the corresponding chain conveyor assembly 4. When the aluminum plate 6 continues to move until it contacts the blocking block 3, the blocking block 3 will continuously deflect and block the deviated edge of the aluminum plate 6. Since the chain conveyor assembly 4 and the belt conveyor assembly 2 maintain the same rotation speed, the blocking block 3 will not slip relative to the aluminum plate 6 during the process of pushing the aluminum plate 6. Therefore, it will not affect the overall conveying speed of the aluminum plate 6, but will only prevent the aluminum plate 6 from deviating in posture by limiting its movement, thus achieving precise adjustment of the aluminum plate 6's posture. After posture correction, the aluminum plate 6 can enter the oiling device 7 smoothly with a regular posture, further ensuring the consistency of its contact position with the oiling roller, and fundamentally guaranteeing the stability of the oiling quality.

[0025] Furthermore, a guide plate 5 is fixedly installed at the outlet end of the support frame 1 corresponding to the conveyor assembly 2. The guide plate 5 is made of stainless steel and has a polished surface to reduce frictional resistance between it and the aluminum plate 6. When the aluminum plate 6 is transported by the conveyor assembly 2 to the vicinity of the coating roller, the guide plate 5 guides the aluminum plate 6 through the gap between the support frame 1 and the coating roller, thus preventing the aluminum plate from sagging or warping when passing through the gap between the support frame 1 and the coating roller, thereby improving the stability of the aluminum plate 6 as it enters the designated position on the coating roller.

[0026] The operation and control methods of the variable frequency motor in this embodiment should be understood as existing technology.

[0027] The specific embodiments of this utility model have been described above. It should be understood that this utility model is not limited to the specific embodiments described above, and those skilled in the art can make various modifications or variations within the scope of the claims, which do not affect the substantive content of this utility model.

Claims

1. A barrier-type conveying device for coating aluminum plates, characterized in that, It has a support frame (1) that corresponds to the oiling device (7), and the support frame (1) is provided with a belt conveyor assembly (2) and a chain conveyor assembly (4) that are distributed parallel to the oiling device (7). The belt conveyor assembly (2) includes multiple conveyor belts (203) with the same rotation speed as the oiling roller of the oiling device (7). The multiple conveyor belts (203) can utilize the static friction force with the aluminum plate (6) through cyclic rotation to ensure that the conveyed aluminum plate (6) contacts the oiling roller at the same position each time. The chain transmission assembly (4) includes multiple chains (403) rotating at the same speed as the conveyor belt (203). Multiple blocking blocks (3) are provided on the chain (403) to form a blocking surface on the side of the aluminum plate (6) near the oiling device (7). The blocking surface can restrict the aluminum plate (6) to maintain a stable posture, so as to ensure that each aluminum plate (6) is in contact with the oiling roller at the same position.

2. The barrier-type conveying device for coating aluminum plates as described in claim 1, characterized in that: Each of the conveyor belts (203) is rotatably connected to two conveyor wheels (202). The two conveyor wheels (202) are arranged along the rotation direction of the aluminum plate (6). The conveyor wheels (202) are connected to a drive shaft (201) via a key. The drive shaft (201) is rotatably connected to the support frame (1).

3. A barrier-type conveying device for coating aluminum plates as described in claim 1 or 2, characterized in that: The conveyor belt (203) is made of high-strength polyester fiber, and the surface of the conveyor belt (203) is covered with a layer of wear-resistant polyurethane coating.

4. The barrier-type conveying device for coating aluminum plates as described in claim 1, characterized in that: The chain (403) is wrapped around two sprockets (401) arranged along the transmission direction of the aluminum plate (6). The sprockets (401) are connected to the chain shaft (402) rotatably arranged on the support frame (1) by a key. The chain (403) adopts a roller chain structure.

5. The barrier-type conveying device for coating aluminum plates as described in claim 1, characterized in that: The belt transmission component (2) is connected to a variable frequency motor via a coupling, and the belt transmission component (2) and the chain transmission component (4) are connected by a gear transmission component with a transmission ratio of 1.

6. The barrier-type conveying device for coating aluminum plates as described in claim 1, characterized in that: The top of the blocking block (3) is chamfered away from the oiling device (7) to guide the aluminum plate (6) to be placed on the belt conveyor assembly (2).

7. The barrier-type conveying device for coating aluminum plates as described in claim 1, characterized in that: The bottom of the conveyor belt (203) is slidably connected to a guide rail (204) with a U-shaped cross section, and the guide rail (204) is fixedly connected to the support frame (1).

8. The barrier-type conveying device for coating aluminum plates as described in claim 1, characterized in that: The end of the support frame (1) facing the oiling device (7) is fixedly connected to the guide plate (5) by screws. One end of the guide plate (5) facing the oiling device (7) extends to the outer edge of the oiling roller to support the aluminum plate (6) through the gap between the support frame (1) and the oiling roller.

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