Paint spraying and drying continuous production system for aluminum plate

Abstract

The invention relates to the field of drying equipment, in particular to a paint spraying and drying continuous production system for aluminum plates, which comprises a paint spraying chamber, a drying chamber and a conveying device for conveying products, and is characterized in that at least one group of heating devices is arranged in the drying chamber, and the heating devices are used for drying the products; each group of heating devices comprises a plurality of heating devices which are arranged on the inner side wall of the drying chamber in the vertical direction; the heating device can slide in the horizontal direction perpendicular to the drying chamber and can rotate around the axis parallel to the ground. And a driving device for driving the heating device to move is arranged on the drying chamber. The drying device has the effects of improving the product drying effect and improving the product production quality.

Description

Technical Field

[0001] This application relates to the technical field of drying equipment, and in particular to a continuous production system for spray painting and drying aluminum plates. Background Technology

[0002] Aluminum sheets are a common type of profile, primarily used for architectural decoration or as protective casings for equipment. Aluminum sheets typically require coating to improve their appearance and corrosion resistance. Traditional coating processes are manual, which can negatively impact worker health, is physically demanding, and inefficient. With the development of automation technology, automated coating and drying lines have gradually replaced manual coating and natural air drying, significantly improving aluminum sheet production efficiency. For example, patent publication CN204799479U discloses a continuous spray painting and drying line, which mainly includes a spray booth, a drying chamber, and a conveyor chain. During the painting process, workers hang the products on the conveyor chain, which then carries the products sequentially through the spray booth and drying chamber, thus achieving automatic and continuous spray painting and drying of the aluminum sheets.

[0003] A typical drying chamber mainly consists of the chamber body and a heating device. The heating device is located inside the drying chamber and heats the painted surface of the product (in this embodiment, the aluminum plate), causing the moisture in the paint to evaporate and thus drying the paint. For example, the far-infrared gas heating device for a motor drying production line disclosed in patent publication number CN109959253A mainly includes a preheating channel, a drying channel, and a cooling channel. An infrared heater is installed in the drying channel to heat and dry the product.

[0004] However, in actual production, aluminum sheets are not always uniformly shaped. For some irregularly shaped aluminum sheets, the distance between different positions and the heating device varies after entering the drying chamber. Since the heating principle of the device is based on radiative heat transfer, this uneven heating results in uneven paint quality across different parts of the product, ultimately leading to product defects. Summary of the Invention

[0005] In order to improve the drying quality of products and increase the pass rate of product production, this application provides a continuous production system for spray painting and drying of aluminum plates.

[0006] The continuous production system for spraying and drying aluminum plates provided in this application adopts the following technical solution: A continuous production system for spray painting and drying aluminum plates includes a spray painting chamber, a drying chamber, and a conveying device for conveying products. The drying chamber is characterized by having at least one set of heating devices inside, used for drying the products; each set of heating devices includes multiple heating devices arranged vertically on the inner side wall of the drying chamber; the heating devices are capable of sliding in a direction horizontal and perpendicular to the drying chamber, and capable of rotating about an axis parallel to the ground; the drying chamber is equipped with a driving device for driving the movement of the heating devices.

[0007] By adopting the above technical solution, during product processing, the conveyor device carries the product sequentially through the spray painting chamber and the drying chamber. Automatic spray painting is completed when the product passes through the spray painting chamber. Subsequently, the product enters the drying chamber, where a heating device heats and dries the product, achieving the drying of the paint on the product surface. In actual production environments, manufacturers often encounter irregularly shaped plates, such as S-shaped plates and curved plates. For these types of aluminum plates, during suspension, their shape causes different positions to be at different distances from the heating devices on the side wall of the drying chamber, resulting in uneven drying. In this application, heating devices at different heights are moved according to the shape of the product, ensuring that the distance between multiple heating devices and the product surface remains consistent. In this case, the distance between multiple heating devices and different positions on the aluminum plate is the same, resulting in uniform heating and improving the uniformity of drying. Simultaneously, the up-and-down swinging of the heating devices allows for irradiation in different directions, further improving the uniformity of heating the aluminum plate, reducing heating dead zones, and thus making the product surface drying effect more uniform, improving product quality.

[0008] Optionally, the heating device is configured as two sets, with the two sets of heating devices respectively located on both sides of the drying chamber, and the conveying device passes between the two sets of heating devices during the product conveying process.

[0009] By adopting the above technical solution, the aluminum sheet passes between two sets of heating devices during the production process. For aluminum sheets, the most important parts to be dried are the two sides of the sheet, and the two sets of heating devices heat the product simultaneously from both sides, improving the drying efficiency and realizing a streamlined production line for aluminum sheet drying.

[0010] Optionally, the driving device includes a driving screw and a rotating head. The driving screw is threadedly connected to the drying chamber, the rotating head is rotatably connected to the driving screw, and the heating device is rotatably connected to the rotating head. The rotation of the driving screw can drive the heating device to slide.

[0011] By adopting the above technical solution, a drive screw is provided to drive the linear movement of the heating device. The drive screw, which is threadedly connected to the drying chamber, drives the linear movement of the heating device. To ensure that the rotation of the drive screw and the linear movement of the heating device do not interfere with each other, the drive screw and the heating device can rotate relative to each other. At the same time, to enable the heating device to swing up and down independently, a rotating head is provided to achieve rotation between the drive screw and the heating device in multiple directions.

[0012] Optionally, the driving device further includes a swing drive assembly, which includes a rotating ring and an abutment; a torsion spring is provided on the rotating head to keep the heating device rotating to one side; the rotating ring is rotatably connected to the drying chamber, the abutment is installed on the heating device, the rotating ring is provided with a driving inclined surface, the abutment abuts against the driving inclined surface, and the rotation of the rotating ring can drive the heating device to rotate.

[0013] By adopting the above technical solution, the driving slope is an inclined surface. During the cyclic rotation of the rotating ring, the protruding part of the inclined surface continuously pushes the heating device to one side, while the torsion spring continuously resets the heating device, thereby realizing the reciprocating oscillation of the heating device. Simultaneously, the rotating ring can independently drive the heating device to oscillate, allowing the heating device to oscillate independently and improving the flexibility of equipment use.

[0014] Optionally, the drive device further includes a first transmission mechanism, a second transmission mechanism, and a drive shaft; the drive shaft is rotatably connected to the drying chamber, the first transmission mechanism is disposed between the drive screw and the drive shaft for transmitting power, and the second transmission mechanism is disposed between the rotating ring and the drive shaft for transmitting power.

[0015] By adopting the above technical solution, the drive shaft is used to output power, which is then transmitted to the rotating ring and the drive screw through the first and second transmission mechanisms, respectively, realizing the drive of multiple rotating parts by a single drive component. For mass production lines, equipment stability is extremely important. Here, by reducing the number of independent electrically controlled drive components, the influence of factors such as electromagnetic interference and power supply stability is reduced, thereby improving the stability of equipment operation to meet the needs of mass production lines. Moreover, in this application, the number of electrically controlled drive components can be directly reduced by several times through the arrangement of the first and second transmission mechanisms. For example, taking eight heating devices as an example, according to the scheme where electrically controlled drive components are arranged on both the drive screw and the rotating ring, at least 16 are needed for rotating drive components. However, by adopting the method in this application, the number of rotating drive components can be reduced by at least half.

[0016] Optionally, the driving device further includes a rotation driving mechanism, which includes a forward driving component and a reverse driving component. Both the forward driving component and the reverse driving component are connected to the drive shaft and are used to control the connection and disconnection between the drive shaft and the first transmission mechanism. The first transmission mechanism, connected to the drive shaft through the forward driving component, can drive the drive screw to rotate in the forward direction. The first transmission mechanism, connected to the drive shaft through the reverse driving component, can drive the drive screw to rotate in the reverse direction.

[0017] By adopting the above technical solution, the drive screw can rotate both forward and reverse through the forward drive mechanism and the reverse drive assembly, ensuring flexible adjustment of the heating device in both directions. This design avoids the limitations of unidirectional drive, enabling rapid reset and fine adjustment of the heating device's position, and improving adaptability to irregularly shaped aluminum plates. Simultaneously, the forward and reverse drive assemblies also control the transmission and disconnection of power. In actual production, the heating device does not require linear movement during the production of a batch of aluminum plates; therefore, power transmission can be disconnected through the forward and reverse drive assemblies. If the electronically controlled drive component remains continuously connected to the drive screw, the radial gravity on the drive screw will be transmitted to the drive shaft. Over time, this will reduce the lifespan of the electronically controlled drive component and negatively impact equipment stability during production.

[0018] Optionally, the forward drive assembly includes a sliding disk, which is slidably mounted on the drive shaft along its length. The drive shaft and the sliding disk are coaxially arranged, and the sliding disk can slide to approach or move away from the first transmission mechanism.

[0019] The sliding disk can move closer to or further away from the first transmission mechanism, thereby enabling the sliding disk and the first transmission mechanism to be flexibly connected or disconnected through friction, while reducing the impact of sudden shocks on the electronically controlled drive components and improving their lifespan.

[0020] Optionally, the reverse drive assembly includes: a rotating disk, a sliding seat, and a steering assembly. The sliding seat is slidably connected to the drying chamber, and the rotating disk is rotatably connected to the sliding seat and can slide in a direction parallel to the length of the drive shaft. The steering assembly is disposed between the rotating disk and the drive shaft to transmit power and drive the rotating disk to rotate in a direction opposite to the rotation direction of the drive shaft.

[0021] Optionally, both the first transmission mechanism and the second transmission mechanism include a transmission shaft and bevel gear sets disposed at both ends of the transmission shaft, wherein the bevel gear sets include two meshing bevel gears.

[0022] Optionally, a through hole is opened on the bevel gear corresponding to the drive shaft in the second transmission mechanism, and it is sleeved on the outside of the drive shaft. A control component is slidably arranged on the drive shaft. When the control component is slidable, it can connect to the bevel gear after entering the through hole.

[0023] In summary, this application includes the following beneficial technical effects: the sliding heating device can move the heating device closer to or further away from the product in the drying chamber, and the individual movement of multiple heating devices ensures that the distance between the multiple heating devices and different positions of the product is consistent, thereby making the drying of the product more uniform, improving the production quality of the product, and increasing the pass rate of the product production process. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure from the first angle of an embodiment of this application.

[0025] Figure 2 This is an embodiment of the present application. Figure 1 Enlarged view of part A in the middle.

[0026] Figure 3 This is a schematic diagram of the overall structure from a second angle of an embodiment of this application.

[0027] Figure 4 This is a schematic diagram of the structure of the driving device according to an embodiment of this application.

[0028] Figure 5 This is a schematic diagram of the structure of the swing drive component in an embodiment of this application.

[0029] Figure 6 This is an embodiment of the present application. Figure 5 Enlarged view of section B.

[0030] Figure 7 This is a schematic diagram of the structure of the drive screw in an embodiment of this application.

[0031] Figure 8 This is a schematic diagram of the rotation drive mechanism according to an embodiment of this application.

[0032] Figure 9 This is a cross-sectional structural schematic diagram of the rotation drive mechanism according to an embodiment of this application.

[0033] Figure 10 This is a schematic diagram of the control component in an embodiment of this application, mainly used to illustrate the connection relationship between the control component and the bevel gear.

[0034] Figure 11 This is a schematic diagram of the structure of the reverse drive component in an embodiment of this application.

[0035] Figure 12This is a state diagram of the connection between the forward drive component and the second gear in an embodiment of this application. It is mainly used to show the positional relationship between the control component and the forward drive component and the reverse drive component in this state.

[0036] Reference numerals: 1. Drying chamber; 11. Clearance passage; 2. Conveying device; 21. Gantry bracket; 22. Suspended conveyor; 23. Hanging plate; 24. Hanging hole; 25. Hook; 3. Heating device; 31. Lamp holder; 32. Infrared heating tube; 33. Guide rod; 4. Drive device; 41. Drive screw; 42. Rotating head; 43. Swing drive assembly; 431. Rotating ring; 432. Abutment; 4321. Mounting base; 4322. Ball bearing; 433. Drive inclined plane; 434. Torsion spring; 5. Rotation drive mechanism; 51. Forward drive assembly; 511. Sliding disc; 512. Friction disc; 52. Reverse drive assembly; 521. Rotating disc; 522. Receiving groove; 523. Sliding seat; 524. Steering assembly; 5241. Transmission gear; 53. Drive shaft; 6. Product; 7. First transmission mechanism; 71. Drive shaft; 72. First wheel set; 73. Second wheel set; 731. First gear; 732. Second gear; 74. Guide groove; 75. Slider; 8. Second transmission mechanism; 81. Third wheel set; 82. Fourth wheel set; 821. Control gear; 9. Control component; 91. Sliding sleeve; 92. Sliding insert; 93. Connecting groove; 94. Sliding groove; 10. Linkage component; 101. Power input shaft; 102. Drive component. Detailed Implementation

[0037] The following is in conjunction with the appendix Figure 1-12 This application will be described in further detail.

[0038] This application discloses a continuous production system for spraying and drying aluminum plates.

[0039] Reference Figure 1 and Figure 2 A continuous production system for spray painting and drying aluminum plates includes: a spray booth (not shown in the figure) for spraying paint on product 6 and a drying chamber 1, which are arranged sequentially. A conveying device 2 is provided above the drying chamber 1 and the spray booth, which is used to carry product 6 sequentially through the spray booth and the drying chamber 1 to achieve automatic spray painting and drying. The structure of the spray booth is conventional technology in this field and will not be described in detail here.

[0040] Reference Figure 1 and Figure 3The drying chamber 1 is equipped with two sets of heating devices 3, which are respectively mounted on two side walls of the drying chamber 1 that are perpendicular to the ground and parallel to their own length. Each set of heating devices 3 includes multiple heating elements 3 arranged vertically, and the heating elements 3 are slidably connected to the inner side wall of the drying chamber 1 in a direction that is horizontal and perpendicular to the length of the drying chamber 1. The sliding heating elements 3 can be moved closer to or further away from the product 6 to be dried inside the drying chamber 1.

[0041] Reference Figure 1 and Figure 3 Taking the arc-shaped product 6 as an example, one end of product 6 is hung on the conveyor device 2. Based on its shape, the other end of product 6 is bent to one side along the width direction of the drying chamber 1. The sliding heating device 3 can adjust the distance between the heating device 3 and product 6, and can keep the distance between the heating device 3 and product 6 at different positions consistent, thereby improving the uniformity of drying product 6, and thus improving the quality of product 6 and the pass rate of product 6.

[0042] Reference Figure 1 and Figure 3 The heating device 3 includes a lamp holder 31 and an infrared heating tube 32 (LPG2410 / 355). The lamp holder 31 has a rectangular block structure, and its length is parallel to the ground and the length of the drying chamber 1. A lamp slot for installing the infrared heating tube 32 is provided on the side of the lamp holder 31 away from the inner wall of the drying chamber 1. The infrared heating tube 32 is installed in the lamp slot, and it can heat the product 6 in the drying chamber 1 after being powered on.

[0043] Reference Figure 3 and Figure 4 A guide rod 33 is provided on the side of the lamp holder 31 near the inner wall of the drying chamber 1. The guide rod 33 has a cylindrical structure, and one end of the guide rod 33 is connected to the lamp holder 31. A sliding hole is provided on the drying chamber 1 corresponding to the guide rod 33. The end of the guide rod 33 away from the lamp holder 31 slides through the sliding hole, realizing a sliding connection between the lamp holder 31 and the drying chamber 1. In order to improve the stability of the lamp holder 31 during the sliding process, multiple guide rods 33 can be provided along the length of the lamp holder 31. In this embodiment, two guide rods 33 are provided.

[0044] Reference Figure 4 and Figure 5 The guide rod 33 is rotatably connected to the lamp holder 31 at one end. The axis of rotation between the guide rod 33 and the lamp holder 31 is parallel to the ground. By rotating the lamp holder 31, the heating device 3 can be irradiated in different directions. During the drying process of the aluminum plate, the lamp holder 31 can be rotated back and forth to make it swing up and down, so that the aluminum plate can be heated more evenly.

[0045] Reference Figure 4 and Figure 5 A driving device 4 for driving the lamp holder 31 is provided on the drying chamber 1. Multiple driving devices 4 are provided corresponding to the lamp holder 31, and to avoid interference between them, they are spaced apart along the length of the drying chamber 1. Each driving device 4 includes a driving screw 41 and a rotating head 42. The driving screw 41 is threadedly connected to the side wall of the drying chamber 1. The rotating head 42 is positioned between the driving screw 41 and the lamp holder 31, and is rotatably connected to both. The axis of rotation between the rotating head 42 and the screw is coaxial with the driving screw 41. The axis of rotation between the rotating head 42 and the lamp holder 31 is coaxial with the axis of rotation between the guide rod 33 and the lamp holder 31. Rotating the driving screw 41 allows for linear movement, which in turn drives the rotating head 42 to move linearly, and consequently, the lamp holder 31 to move linearly.

[0046] Reference Figure 4 and Figure 5 The driving device 4 also includes a swing drive assembly 43, which includes a rotating ring 431 and an abutment member 432. The rotating ring 431 is coaxially sleeved outside the driving screw 41 and rotatably connected to the drying chamber 1. A driving inclined surface 433 is provided on the end face of the rotating ring 431 near the lamp holder 31, and the driving inclined surface 433 is set at an angle to the axis of the rotating ring 431. Figure 6 and Figure 7 A torsion spring 434 is provided between the lamp holder 31 and the rotating head 42. The two ends of the torsion spring 434 abut against the rotating head 42 and the lamp holder 31 respectively, so as to keep the lamp holder 31 tending to rotate to one side. The abutment 432 is installed on the lamp holder 31. The side of the abutment 432 away from the lamp holder 31 abuts against the driving inclined surface 433. The distance from different positions on the driving inclined surface 433 to the lamp holder 31 is different. Therefore, rotating the rotating ring 431 can drive the lamp holder 31 to rotate under the action of the driving inclined surface 433 and the torsion spring 434. With the cyclic rotation of the rotating ring 431, the lamp holder 31 can be driven to swing up and down.

[0047] The rotating ring 431 includes a first rotating sleeve 4311 and a second rotating sleeve 4312. The first rotating sleeve 4311 is coaxially rotatably mounted on the rotating head 42, and a driving inclined surface 433 is disposed on the first rotating sleeve 4311. The second rotating sleeve 4312 is rotatably connected to the drying chamber 1. The first rotating sleeve 4311 and the second rotating sleeve 4312 are slidably connected along their own axial direction. When the driving screw 41 drives the heating device 3 to move linearly, the rotating head 42 moves linearly accordingly. The sliding connection between the first rotating sleeve 4311 and the second rotating sleeve 4312 allows for the transmission of power between them. This ensures that regardless of the position of the heating device 3, rotating the first rotating sleeve 4311 will drive the second rotating sleeve 4312 to rotate, thereby causing the heating device 3 to swing up and down.

[0048] Reference Figure 5 and Figure 6 The abutment 432 includes a mounting base 4321 and a ball bearing 4322. The mounting base 4321 is welded to the lamp holder 31. A groove is provided on the side of the mounting base 4321 near the rotating ring 431. The ball bearing 4322 is installed in the groove and can rotate freely. The ball bearing 4322 abuts against the drive inclined surface 433, thereby reducing the friction between the mounting base 4321 and the rotating ring 431.

[0049] Reference Figure 4 and Figure 8 In the aluminum plate production process, which is characterized by assembly line operation, the system requires high stability of equipment operation. In one embodiment, the rotating ring 431 and the drive screw 41 can each be equipped with electrically controlled drive components. Although the method of separately equipping the rotating ring 431 and the drive screw 41 with electrically controlled drive components is simple, the setting of multiple electrically controlled drive components also increases the risk during equipment operation. In particular, if there are multiple heating devices 3 in the drying equipment, taking the example of 8 heating devices 3 in this application, then 16 electrically controlled drive components are needed to drive the movement of the heating devices. Such a large number of electrically controlled drive components increases the production cost of the equipment on the one hand, and on the other hand, the control of a large number of drive components requires the construction of a control platform through software engineering, further increasing the production cost. More importantly, the setting of a large number of electrically controlled drive components also reduces the stability of equipment operation, making it unsuitable for large-scale assembly line production.

[0050] Based on the above analysis, in this embodiment, the drive device 4 further includes a first transmission mechanism 7, a second transmission mechanism 8, and a drive shaft 53 disposed in the drying chamber 1. The drive shaft 53 is rotatably connected to the drying chamber 1. The first transmission mechanism 7 is disposed between the drive screw 41 and the drive shaft 53 for transmitting power. The second transmission mechanism 8 is disposed between the rotating ring 431 and the drive shaft 53 for transmitting power, thereby enabling a single drive shaft 53 to drive the rotating ring 431 and the drive screw 41 to rotate. Subsequently, the rotation of the rotating ring 431 and the drive screw 41 can be controlled by a single drive component, reducing production costs and improving the stability of equipment operation.

[0051] The first transmission mechanism 7 includes a transmission shaft 71 and two bevel gear sets. One bevel gear set is positioned corresponding to the drive screw 41, and the other bevel gear set is positioned below the drying chamber 1. Both bevel gear sets are mounted on the drying chamber 1. The transmission shaft 71 is positioned between the two bevel gear sets, and both ends of the transmission shaft 71 are connected to the two bevel gear sets respectively.

[0052] Reference Figure 4 and Figure 8 The bevel gear set includes two meshing bevel gears. For ease of description, the bevel gear set corresponding to the drive screw 41 is referred to as the first gear set 72, and the other bevel gear set is referred to as the second gear set 73. One of the bevel gears in the first gear set 72 is coaxially sleeved on the outside of the drive screw 41. A guide groove 74 extending along its own length is formed on the surface of the drive screw 41. A slider is provided on the inner sidewall of the bevel gear, and the slider slides in the guide groove 74, so that the bevel gear drives the drive screw 41 to rotate without affecting the sliding of the drive screw 41. The transmission shaft 71 is coaxially fixedly connected to the bevel gears in the two bevel gear sets, so that the rotation of the bevel gear in the second gear set 73 can drive the rotation of the bevel gear in the first gear set 72.

[0053] Reference Figure 4 and Figure 8 For ease of description, the two gears in the second gear set 73 are named the first gear 731 and the second gear 732, respectively. The first gear 731 is connected to the drive shaft 71.

[0054] Reference Figure 8 and Figure 9In actual production, the position of the heating device 3 needs to be adjusted, which requires the drive screw 41 to reciprocate. Simultaneously, the position of the heating device 3 is fixed during the aluminum plate drying process, while the oscillation of the heating device 3 is continuous. This necessitates controlling the disconnection and connection of power transmission between the drive screw 41 and the drive shaft 53. Based on the above analysis, in this embodiment, the drive device 4 also includes a rotation drive mechanism 5 on the drying chamber 1 corresponding to the second gear 732, for driving the second gear 732 to rotate. The rotation drive mechanism 5 includes a forward drive component 51 and a reverse drive component 52. The drive shaft 53 is a cylindrical rod-shaped structure, and is arranged parallel to the width of the drying chamber. The drive shaft 53 is rotatably connected to the drying chamber 1. Both the forward drive component 51 and the reverse drive component 52 are connected to the drive shaft 53. The forward drive assembly 51 is used to transmit power. When the forward drive assembly 51 is connected to the second gear 732, it can drive the second gear 732 to rotate in the forward direction. When the forward drive assembly 51 is connected to the second gear 732, it can drive the second gear 732 to rotate in the reverse direction. In this embodiment, the forward and reverse rotation directions are opposite, mainly used to indicate two opposite rotation directions.

[0055] Reference Figure 8 and Figure 9 The forward drive assembly 51 and the reverse drive assembly 52 are arranged on both sides of the drive shaft 53 along the axial direction of the second gear 732. The forward drive assembly 51 includes a sliding disk 511, which is sleeved on the drive shaft 53 and can slide along the direction of the drive shaft 53. Sliding the sliding disk 511 allows it to move closer to or further away from the second gear 732. The sliding disk 511 is coaxial with the drive shaft 53, and the drive shaft 53 is also coaxial with the sliding disk 511. After the sliding disk 511 abuts against the end of the drive shaft 53, under the action of friction, it can drive the drive shaft 53 to rotate as the drive shaft 53 rotates.

[0056] Reference Figure 8 and Figure 9 To improve the stability of the drive shaft 53 during rotation driven by the sliding disc 511, a friction disc 512 is provided at the end of the drive shaft 53 corresponding to the position of the sliding disc 511. The friction disc 512 can abut against the sliding disc 511, increasing the contact area between the drive shaft 53 and the sliding disc 511. A ceramic coating is provided on the side of the friction disc 512 and the sliding disc 511 that are close to each other to improve wear resistance and increase friction.

[0057] Reference Figure 8 and Figure 9The forward drive assembly 51 includes a rotating disk 521 and a sliding seat 523. The sliding seat 523 is slidably connected to the drying chamber 1 along the length direction of the second gear 732. The rotating disk 521 is coaxially arranged with the second gear 732 and rotatably connected to the sliding seat 523 about its own axis. Figure 5 A steering assembly 524 is provided between the rotating disk 521 and the drive shaft 53, and the steering assembly 524 is used to transmit power. During the adjustment of the position of the heating device 3, the forward rotation of the drive shaft 53 can drive the sliding disk 511 to rotate in the forward direction. Under the action of the steering assembly 524, the rotating disk 521 can rotate in the reverse direction. When the sliding seat 523 is moved, the sliding seat 523 drives the rotating disk 521 to move closer to the drive shaft 53. When the rotating disk 521 abuts against the drive shaft 53, under the action of friction, it can drive the drive shaft 53 to rotate in the reverse direction, thereby driving the connecting rod 43 to move in different directions.

[0058] Reference Figure 8 and Figure 9 A receiving groove 522 is provided on the side of the rotating disk 521 away from the drive shaft 53, and the rotating disk 521 is coaxially arranged with the drive shaft 53. Figure 10 and Figure 11 A steering assembly 524 is disposed in a receiving groove 522. The steering assembly 524 includes two transmission gears 5241, which mesh and rotatably connect to a sliding seat 523. One of the transmission gears 5241 is coaxially sleeved on a drive shaft 53 and can slide along the length of the drive shaft 53. A toothed groove is formed on the inner wall of the receiving groove corresponding to the transmission gear 5241, and the transmission gear 5241 on the sliding seat 523 meshes in the toothed groove. Rotation of the drive shaft 53 drives the transmission gear 5241 to rotate, which in turn drives the rotating disk 521 to rotate in the opposite direction. In this embodiment, the sliding seat 523 is driven by a cylinder. To improve the stability of the drive shaft 53 during reverse rotation, a friction disc 512 is also provided on the side of the drive shaft 53 near the rotating disk 521.

[0059] Reference Figure 4 and Figure 8 The second transmission mechanism 8 has the same structure as the first transmission mechanism 7, also including two bevel gear sets. Figure 10 and Figure 11 For ease of description, the two bevel gear sets in the second transmission mechanism are defined as the third gear set 81 and the fourth gear set 82. The third gear set 81 is positioned corresponding to the rotating ring 431, and the rotating ring 431 is coaxially and fixedly connected to one of the bevel gears of the third gear set 81, achieving a rotational connection between the rotating ring 431 and the drying chamber 1. The fourth gear set 82 is positioned corresponding to and connected to the drive shaft 53, thereby enabling the power of the drive shaft 53 to be transmitted to the rotating ring 431, driving the rotating ring 431 to rotate.

[0060] Reference Figure 8 and Figure 9 In the fourth gear set 82, two bevel gears are coaxially mounted with the transmission shaft 71 and the drive shaft 53, respectively. The bevel gear coaxial with the drive shaft 53 is defined as the control gear 821, which has a through hole coaxial with itself, through which the drive shaft 53 passes. To further improve the flexibility of the equipment's production process, for example, the oscillation of the heating device 3 can be selected by the operator based on the actual situation. Therefore, in this embodiment, a control component 9 is provided between the sidewall of the through hole and the drive shaft 53. The control component 9 includes a sliding sleeve 91 and a sliding block 92. The sliding sleeve 91 is disposed on the drive shaft 53 along the length direction of the drive shaft 53, and the sliding block 92 is mounted on the sliding sleeve 91. A connecting groove 93 is provided on the sidewall of the through hole corresponding to the sliding block 92, extending along the axial direction of the drive shaft 53. Sliding the sliding sleeve 91 allows the sliding block 92 to be inserted into the connecting groove 93, realizing the connection between the sliding sleeve 91 and the control gear 821. At the same time, sliding the sliding sleeve 91 allows it to slide out of the connecting groove 93, disconnecting the connection between the sliding sleeve 91 and the control gear 821. The setting of the control component 9 enables the power transmission between the drive shaft 53 and the second transmission mechanism 8 to be controlled. In the actual production process, the operator can determine whether the heating device 3 needs to be oscillated based on experience and actual production conditions, thereby adapting to more working conditions.

[0061] Reference Figure 8 and Figure 9 A sliding groove 94 is provided on the side wall of the sliding sleeve 91 corresponding to the sliding block 92, and the sliding block 92 is slidably connected to the sliding groove 94 along the radial direction of the sliding sleeve 91. Figure 10 A compression spring is installed in the sliding groove 94 to maintain the sliding block 92's tendency to move outward from the sliding groove 94. An arc surface is provided on the side of the sliding block 92 away from the axis of the sliding sleeve 91, with the opening of the arc surface facing the axis of the sliding sleeve 91, and the axis of the arc surface perpendicular to the axis of the sliding sleeve 91. During the connection and disconnection between the sliding sleeve 91 and the control gear 821, if the sliding block 92 and the connecting groove 93 are not in a corresponding state, the arc surface abuts against the side wall of the through hole, causing the sliding block 92 to enter the sliding groove 94, thus not affecting the sliding of the sliding sleeve 91. Subsequently, as the sliding sleeve 91 rotates, when the sliding block 92 aligns with the connecting groove 93, the sliding block 92 can automatically insert into the connecting groove 93 under the action of the compression spring.

[0062] To improve the stability of the connection between the sliding sleeve 91 and the control gear 821, multiple sliding blocks 92 can be evenly spaced along the axis of the sliding sleeve 91.

[0063] Reference Figure 9 and Figure 12The sliding sleeve 91 is rotatably connected to the sliding seat 523, so that the sliding seat 523 can slide and drive the sliding sleeve 91 to move, thereby driving the sliding sleeve 91. At the same time, in this embodiment, in order to prevent the linear movement and up-and-down swing of the heating device 3 from occurring simultaneously, the position of the control component 9 is controlled. Specifically, the distance between the second gear 732 and the control gear 821 is defined as d. In this embodiment, the forward drive component 51 is located between the control component 9 and the reverse drive component 102; the vertical distance from the side of the sliding block 92 away from the forward drive component 102 to the side of the sliding disk 511 near the second gear 732 is defined as l, then l≤d, so that when the sliding disk 511 abuts against the second gear 732, the sliding block 92 can disengage from the connecting groove 93. Similarly, if the distance between the side of the sliding block 92 near the reverse drive assembly 102 and the side of the rotating disk 521 near the second gear 732 is defined as k, then k≥d, so that the reverse rotating disk 521 can also disengage from the connecting groove 93 when it comes into contact with the second gear 732.

[0064] Reference Figure 4 and Figure 9 Multiple drive devices 4, corresponding to the heating devices 3 located on the same side, are arranged along the length of the drying chamber 1. In some embodiments, the power output shaft in the drive device 4 can be directly connected to a separate electric motor to drive the power output shaft.

[0065] Reference Figure 4 and Figure 9 In this embodiment, to reduce the number of independent driving components, a linkage assembly 10 is provided at the bottom of the drying chamber 1. The linkage assembly 10 includes a power input shaft 101, a driving component 102, and a bevel gear set. The power input shaft 101 is rotatably connected to the drying chamber 1 and is driven by the driving component 102. In this embodiment, the driving component 102 is a servo motor. A bevel gear set is provided on the power input shaft 101 corresponding to the power output shaft. Two meshing bevel gears in the bevel gear set are coaxially fixedly connected to the power input shaft 101 and the power output shaft, respectively, so that a single driving component 102 drives multiple driving shafts 53 to rotate. At the same time, in conjunction with the forward driving component 51, the reverse driving component 52, and the control component 9 in the driving device 4, a single driving component 102 drives multiple heating devices 3 to operate linearly in both directions and swing up and down.

[0066] Reference Figure 1 and Figure 2The conveying device 2 includes a portal frame 21 and a suspended conveyor 22, manufactured by Tianjin Huaqiang Suspended Conveying Equipment Factory, model WF4-206-30KG double-bend chain plate with single guide wheel. The portal frame 21 includes a crossbeam and two vertical rods, each vertically fixed to one end of the crossbeam. The end of the vertical rod furthest from the crossbeam is supported on the ground. Multiple portal frames 21 are arranged along the length of the drying chamber 1, and the suspended conveyor 22 is mounted on the portal frame 21. A hanging plate 23 is fixed to the actuator of the suspended conveyor 22. The hanging plate 23 is a rectangular plate structure, arranged along the conveying direction of the suspended conveyor 22. Multiple hanging holes 24 are formed along the length of the hanging plate 23, each with a hook 25. Multiple products 6 can be hooked through the hooks 25 to achieve the conveying of the products 6.

[0067] Reference Figure 1 and Figure 2 An obstacle avoidance passage 11 is provided on the side of the drying chamber 1 away from the ground. The obstacle avoidance passage 11 is connected inside the drying chamber 1 and runs through the length of the drying chamber 1. During the process of the conveyor device 2 moving the product 6, the hanging plate 23 can pass through the drying chamber 1 along the length of the drying chamber 1, so that the product 6 can enter the drying chamber 1 from one end and then move out from the other end of the drying chamber 1.

[0068] The implementation principle of the continuous production system for spray painting and drying of aluminum plates according to an embodiment of this application is as follows: A heating device 3 is slidably connected to the drying chamber 1 along a horizontal direction perpendicular to the length of the drying chamber 1. During the drying process of product 6, product 6 is located near the center in the drying chamber 1. By moving the heating device 3, the distance between the heating device 3 and product 6 can be adjusted. Furthermore, for irregularly shaped products 6, the distance between multiple heating devices 3 and product 6 can be made consistent by adjusting the position of the heating device 3, thereby making the drying of product 6 after spray painting more uniform, improving product quality, and reducing the defect rate. The above are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made according to the structure, shape, and principle of this application should be covered within the scope of protection of this application.

Claims

1. A continuous production system for spray painting and drying aluminum plates, comprising a spray painting chamber, a drying chamber (1), and a conveying device (2) for conveying products (6); characterized in that, The drying chamber (1) is provided with at least one set of heating devices (3) for drying the product (6); each set of heating devices (3) includes multiple heating devices (3) arranged vertically on the inner side wall of the drying chamber (1); the heating devices (3) can slide in a direction that is horizontal and perpendicular to the drying chamber (1) and can rotate about an axis parallel to the ground; the drying chamber (1) is provided with a driving device (4) for driving the heating devices (3) to move.

2. The continuous production system for spray painting and drying of aluminum plates according to claim 1, characterized in that, The heating device (3) is set in two groups, and the two groups of heating devices (3) are respectively set on both sides of the drying chamber (1). The conveying device (2) passes between the two groups of heating devices (3) during the process of conveying the product (6).

3. The continuous production system for spray painting and drying of aluminum plates according to claim 1, characterized in that, The driving device (4) includes a driving screw (41) and a rotating head (42). The driving screw (41) is threadedly connected to the drying chamber (1). The rotating head (42) is rotatably connected to the driving screw (41). The heating device (3) is rotatably connected to the rotating head (42). The rotation of the driving screw (41) can drive the heating device (3) to slide.

4. The continuous production system for spray painting and drying of aluminum plates according to claim 3, characterized in that, The driving device (4) also includes a swing driving assembly (43), which includes a rotating ring (431) and an abutment (432). A torsion spring (434) is provided on the rotating head (42) to keep the heating device (3) rotating to one side. The rotating ring (431) is rotatably connected to the drying chamber (1), and the abutment (432) is installed on the heating device (3). A driving inclined surface (433) is provided on the rotating ring (431), and the abutment (432) abuts against the driving inclined surface (433). The rotation of the rotating ring (431) can drive the heating device (3) to rotate.

5. The continuous production system for spray painting and drying of aluminum plates according to claim 3, characterized in that, The drive device (4) also includes a first transmission mechanism (7), a second transmission mechanism (8), and a drive shaft (53); the drive shaft (53) is rotatably connected to the drying chamber (1), the first transmission mechanism (7) is disposed between the drive screw (41) and the drive shaft (53) for transmitting power, and the second transmission mechanism (8) is disposed between the rotating ring (431) and the drive shaft (53) for transmitting power.

6. The continuous production system for spray painting and drying of aluminum plates according to claim 5, characterized in that, The drive device (4) further includes a rotation drive mechanism (5), which includes a forward drive component (51) and a reverse drive component (52). Both the forward drive component (51) and the reverse drive component (52) are connected to the drive shaft (53) and are used to control the connection and disconnection between the drive shaft (53) and the first transmission mechanism (7). The first transmission mechanism (7) is connected to the drive shaft (53) through the forward drive component (51) and can drive the drive screw (41) to rotate in the forward direction. The first transmission mechanism (7) is connected to the drive shaft (53) through the reverse drive component (51) and can drive the drive screw (41) to rotate in the reverse direction.

7. The continuous production system for spray painting and drying of aluminum plates according to claim 6, characterized in that, The forward drive assembly (51) includes a sliding disk (511), which is mounted on the drive shaft (53) with a sliding sleeve (91) along the length direction of the drive shaft (53). The drive shaft (53) and the sliding disk (511) are coaxially arranged. The sliding disk (511) can slide to approach or move away from the first transmission mechanism (7).

8. The continuous production system for spray painting and drying of aluminum plates according to claim 6, characterized in that, The reverse drive assembly (52) includes a rotating disk (521), a sliding seat (523), and a steering assembly (524). The sliding seat (523) is slidably connected to the drying chamber (1), and the rotating disk (521) is rotatably connected to the sliding seat (523) and can slide in a direction parallel to the length of the drive shaft (53). The steering assembly (524) is disposed between the rotating disk (521) and the drive shaft (53) for transmitting power and driving the rotating disk (521) to rotate in a direction opposite to the rotation direction of the drive shaft (53).

9. The continuous production system for spray painting and drying of aluminum plates according to claim 6, characterized in that, The first transmission mechanism (7) and the second transmission mechanism (8) both include a transmission shaft (71) and a bevel gear set disposed at both ends of the transmission shaft (71). The bevel gear set includes two meshing bevel gears.

10. A continuous production system for spraying and drying aluminum plates according to claim 9, characterized in that, The second transmission mechanism (8) has a through hole on the bevel gear corresponding to the drive shaft (53) and is sleeved on the outside of the drive shaft (53). A control component (9) is slidably arranged on the drive shaft (53). When the control component (9) is slidably moved, it can connect to the bevel gear after entering the through hole.

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