A carousel-type wrap-around spray painting line
Patent Information
- Application Number
- CN202522234610.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-22
- Publication Date
- 2026-10-16
- Estimated Expiration
- 2035-10-22
AI Technical Summary
[0003]为提高喷涂效率,喷涂生产线通常采用输送机构对产品进行转移,并在输送机构的一侧设置喷枪等喷涂部件,在输送机构的驱动作用下,喷枪对经过其工作区域的产品进行喷涂加工,为对产品的四周进行喷涂,相关技术中,通过独立的动力机构对到达指定工位的产品驱动自转,产品自转的过程中,输送机构停止运行,待旋转喷涂完成之后输送机构才会再度启动并输送产品,这种生产线的停机喷涂耗时长,整体产线的生产效率低
通过周转驱动模组驱动周转链条连续前进,在拨动齿条的啮合拨动作用下,环转齿轮经过固定于机台上的拨动齿条时能够实现自转,喷涂产品能够在持续周转前进过程中同步实现在线自转以配合喷涂,从而实现周转连续顺畅、且多方位喷涂的加工,进而显著缩短喷涂时间,整体产线的生产效率高,周转前进和自转均通过周转驱动模组这一动力源驱动实现,能够有效降低投入成本和维护成本;通过将拨动齿条的齿数大于或等于环转齿轮的齿数,喷涂产品在经过喷涂区域时能够实现一周以上完整旋转,喷涂产品的四周表面都能在行前进程中依次朝向不同的喷涂枪,能够实现全面且均匀的喷涂加工,能够有效保证最终喷涂产品的喷涂质量;通过各个喷涂枪沿拨动齿条的延伸方向间隔排列,每相邻两个喷涂枪之间的喷涂边缘区域重叠,从而均衡喷涂区域的漆料分布量,喷涂产品在前进的过程中同步自转能够获得均匀可靠的喷涂效果,喷涂厚度均匀,喷涂质量高。
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Figure CN224854452U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of spray coating production, and in particular to a revolving surround spray coating production line. Background Technology
[0002] Spraying refers to the process of atomizing paint into tiny droplets using air, high pressure, or centrifugal force, and then allowing it to adhere to the surface of a workpiece. Spraying provides benefits such as wear resistance, corrosion resistance, and aesthetic appeal. The spray gun is the core component responsible for paint atomization and spraying; automotive parts, mobile phone components, and lighting hardware often require spraying processing.
[0003] To improve spraying efficiency, spraying production lines typically use conveyor mechanisms to transfer products, with spray guns and other spraying components installed on one side of the conveyor mechanism. Driven by the conveyor mechanism, the spray guns spray the products passing through their working area. To spray the product from all sides, related technologies use an independent power mechanism to drive the product to rotate upon reaching the designated workstation. During the product's rotation, the conveyor mechanism stops running. It will only restart and transport the product again after the rotation and spraying are completed. This type of production line has long downtime for spraying and low overall production efficiency. Utility Model Content
[0004] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a rotary, surround-type spraying production line, which can achieve continuous and reliable spraying processing, with short production time and high production efficiency.
[0005] A reusable surround spraying production line according to an embodiment of the present utility model includes: The machine is equipped with a product positioning seat, a turnover chain, a turnover drive module, and multiple chain gears. Each chain gear is rotatably connected to the machine. The turnover chain is wound around each chain gear. One chain gear is connected to the turnover drive module, which is used to drive the turnover chain forward along the turnover path. There are multiple product positioning seats, all of which are rotatably connected to the turnover chain. Each product positioning seat is equipped with a ring gear. The spraying assembly includes a gear rack and multiple spray guns, all located on one side of the rotation path. The gear rack and each spray gun are connected to the machine base. All the spray guns are arranged at intervals along the extension direction of the gear rack. Each spray gun is located above the gear rack. The gear rack and the rotating gear are at the same horizontal height. The gear rack meshes with the corresponding rotating gear. The number of rotating teeth of the rotating gear is less than or equal to the number of gear teeth of the gear rack.
[0006] In this embodiment, the reusable surrounding spraying production line also includes a drying component, which includes a drying protective cover, a heater, and a fan. The drying protective cover is provided with a drying channel, a reusable chain passes through the drying channel, the heater is located inside the drying protective cover, and the fan is located on the side of the heater away from the reusable chain.
[0007] In this embodiment, the reusable surrounding spraying production line also includes a loading and unloading assembly, which includes a support, a transfer drive module, and a clamping module. The transfer drive module is connected to the support, and the clamping module is connected to the transfer drive module. The transfer drive module is used to drive the clamping module to move along the transfer path, and one end of the transfer path is located above the reusable path.
[0008] In this embodiment, the machine is provided with a loading station, a first spraying station, a first drying station, a second spraying station, a second drying station, and a unloading station arranged sequentially along the turnover path. There are two sets of spraying components, drying components, and loading / unloading components. Both the loading station and the unloading station are equipped with loading / unloading components. Both the first spraying station and the second spraying station are equipped with spraying components. Both the first drying station and the second drying station are equipped with drying components.
[0009] In this embodiment, the spraying assembly also includes a spraying protective cover, which is provided with a spraying channel and an exhaust pipe. A turnover chain passes through the spraying channel, and one end of the exhaust pipe is connected to an exhaust pump.
[0010] In this embodiment, the exhaust pipe is located on the side of the turnover chain away from the spray gun, and the exhaust pipe is located below the horizontal plane where the spray gun is located.
[0011] In this embodiment, each product positioning seat is provided with a support rod.
[0012] In this embodiment, the spraying assembly also includes a protective baffle connected to the machine base. The protective baffle is located above the product positioning seat, and the ring gear is connected to the bottom of the product positioning seat. The protective baffle is provided with a clearance groove for matching the support rod.
[0013] The embodiments of this utility model have at least the following beneficial effects: The turnover drive module drives the turnover chain forward continuously. Under the meshing action of the actuating rack, the circular gear can rotate as it passes the actuating rack fixed on the machine base. The painted product can simultaneously rotate online during the continuous turnover forward process to coordinate with the spraying, thereby achieving continuous and smooth turnover and multi-directional spraying, which significantly shortens the spraying time and increases the overall production line's production efficiency. Both the turnover forward movement and rotation are driven by the turnover drive module, which can effectively reduce investment and maintenance costs. By ensuring that the number of teeth on the actuating rack is greater than or equal to the number of teeth on the circular gear, the turnover chain can achieve continuous and smooth turnover and multi-directional spraying. This significantly shortens the spraying time and increases the overall production line's efficiency. The number of teeth on the gears allows the painted product to rotate more than one full revolution as it passes through the spraying area. All four surfaces of the painted product face different spray guns sequentially during the forward movement, enabling comprehensive and uniform spraying and effectively ensuring the final paint quality. By arranging the spray guns at intervals along the extension direction of the gear rack, the spraying edge areas between adjacent spray guns overlap, thus balancing the paint distribution in the spraying area. The synchronous rotation of the painted product during its forward movement achieves a uniform and reliable spraying effect, resulting in even paint thickness and high-quality paint. Attached Figure Description
[0014] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1 This is a three-dimensional structural diagram of a revolving surround spraying production line according to an embodiment of the present utility model; Figure 2 This is a three-dimensional structural diagram of the revolving surround spraying production line according to an embodiment of the present utility model from another perspective. Figure 3 for Figure 1 A magnified structural diagram of A in the middle; Figure 4 for Figure 1 A magnified structural diagram of B in the diagram; Figure 5 This is a top view of the revolving surround spraying production line according to an embodiment of the present utility model; Figure 6 For along Figure 5 A schematic diagram of the cross-sectional structure between C and C'; Figure 7 For along Figure 5 A schematic diagram of the cross-sectional structure of D-D'; Figure 8 This is a three-dimensional structural diagram of the reusable surrounding spraying production line of this utility model under another application state.
[0015] Figure label: Machine base 100, loading station 101, first spraying station 102, first drying station 103, second spraying station 104, second drying station 105, unloading station 106, product positioning seat 110, ring gear 111, support rod 112, turnover chain 120, turnover drive module 130, tension chain gear 140, protective baffle 150, clearance groove 151; Spraying assembly 200, a gear rack 210, a spray gun 220, a spray protective cover 230, a spraying channel 231, an exhaust pipe 232, and an exhaust pump 233; Drying assembly 300, drying protective cover 310, drying channel 311, heating element 320, fan 330; Loading and unloading assembly 400, bracket 410, transfer drive module 420, clamping module 430. Detailed Implementation
[0016] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.
[0017] In the description of this utility model, it should be understood that the orientation descriptions, such as up, down, left, right, front, and back, are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0018] In the description of this utility model, if the wire sleeve or frame is mentioned, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features or the order of the technical features.
[0019] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.
[0020] Automotive components, mobile phone components, and lighting hardware often require painting. To improve painting efficiency, painting production lines typically use conveyor mechanisms to transfer products, with spray guns and other painting components installed on one side of the conveyor. Driven by the conveyor, the spray guns paint the products passing through their working area. However, this type of painting production line can only paint one side of the product's surface. To achieve full painting of all four sides, multiple painting operations at different stations are required. This results in large production line footprints, high land costs, long painting time, and low production efficiency. To achieve full-around spraying of the product, an independent power mechanism drives the product to rotate upon reaching the designated workstation. During the product's rotation, the conveyor mechanism stops operating. After completing one rotation and completing the spraying, the conveyor mechanism restarts and transports the product again. The production cycle of this production line is limited by the rotation spraying time. The product's stay on the production line and the start-up process cause intermittent interruptions in the production line. The downtime for spraying is long, resulting in low overall production efficiency. Furthermore, the intermittent interruptions caused by start-up and shutdown increase mechanical wear on the production line, severely shortening the service life of the corresponding structures on the production line. The independent power mechanism also increases the investment and maintenance costs of the production line.
[0021] The following is for reference only. Figure 1 To be continued Figure 8 The present invention describes a revolving, circular spraying production line that enables continuous and reliable spraying processing, occupies little space, has short spraying production time, and high production efficiency.
[0022] Reference Figures 1 to 8 A reusable surround spraying production line according to an embodiment of the present invention includes: The machine base 100 includes a product positioning seat 110, a turnover chain 120, a turnover drive module 130, and multiple tensioning gears 140. Each tensioning gear 140 is rotatably connected to the machine base 100. The turnover drive module 130 is connected to the machine base 100. The turnover chain 120 is wound around each tensioning gear 140 to keep the turnover chain 120 taut. Each tensioning gear 140 meshes with a corresponding area of the turnover chain 120. One tensioning gear 140 is connected to the turnover drive module 130, which is used for... The connecting chain gear 140 drives the turnover chain 120 to move forward along the turnover path. Multiple product positioning seats 110 are provided and are rotatably connected to the turnover chain 120. The product positioning seats 110 follow the turnover chain 120 to move forward along the turnover path. Each product positioning seat 110 is coaxially provided with a ring gear 111. The product positioning seat 110 is used to position the sprayed product or the fixture clamped with the sprayed product. The turnover drive module 130 can be a power structure such as a geared motor that can drive one of the chain gears 140 to rotate. The spraying assembly 200 includes a gear rack 210 and multiple spray guns 220, all located on one side of the turnover path. Specifically, the gear rack 210 and each spray gun 220 are located on one side of the turnover chain 120. The gear rack 210 and each spray gun 220 are fixedly connected to the machine base 100. The spray guns 220 are used to spray the products on the product positioning seat 110. All the spray guns 220 are arranged at intervals along the extension direction of the gear rack 210, and the spraying edge areas between each adjacent pair of spray guns 220 overlap, thus achieving spraying... The paint distribution along the extension direction of the actuating rack 210 is evenly distributed, and each spray gun 220 is located above the horizontal plane of the actuating rack 210 to ensure that each spray gun 220 can spray the products on each product positioning seat 110 in the area acted upon by the actuating rack 210. The actuating rack 210 and the rotating gear 111 are at the same horizontal height, and the actuating rack 210 is meshed with the corresponding rotating gear 111. As the rotating chain 120 moves forward, it drives different rotating gears 111 to contact and be driven by the actuating rack 210. The actuating rack 210 and the rotating gear 111 have the same module, and their tooth profile angles and other parameters are matched to ensure reliable meshing. The number of rotating teeth on the rotating gear 111 is less than or equal to the number of actuating teeth on the actuating rack 210, so that the actuating rack 210 can drive the rotating gear 111 to rotate more than 360 degrees, thus ensuring that the surfaces around the coated product can rotate to face the desired direction at different times. The corresponding spray gun 220 ensures comprehensive spraying of the product. Compared with traditional technology that requires machine stoppage and additional power structure to drive the rotating spraying product, this rotary circular spraying production line drives the rotation of the spraying product while moving forward, eliminating the need for machine stoppage to coordinate with spraying. This significantly shortens the spraying time and effectively improves spraying production efficiency. Both the forward movement and the rotation of the spraying product are driven by the rotary drive module 130, which has a simple structure, low maintenance cost, and low power mechanism investment cost.
[0023] During operation, the product to be painted or the fixture holding the product to be painted is positioned and installed on the product positioning seat 110. The turnover drive module 130 drives the turnover chain 120 to move forward along the turnover path through the chain gear 140. In the area where the painting component 200 is located, the product positioning seat 110 and the ring gear 111 follow the turnover chain 120 forward. Since the actuating rack 210 is fixed on the machine base 100, the ring gear 111 meshing with the actuating rack 210 rotates around its own central axis while moving forward along the turnover path, so that the surface around the painted product is facing the spray gun 220 at different times. Moreover, multiple spray guns 220 are distributed on the actuating rack 210, and the spray gun 220 in each area can spray the side of the painted product in the area.
[0024] Through the coordinated action of the turnover drive module 130, turnover chain 120, actuating rack 210, and ring gear 111, the product positioning seat 110 is stably driven to rotate synchronously while continuously moving forward with the turnover chain 120. This completely eliminates the intermittent operation mode of "stop-rotate-spray-restart" in traditional technology, enabling continuous and reliable all-round spraying processing. It eliminates the time waste caused by product congestion, significantly shortens spraying time, and significantly improves overall production efficiency. It also enables the same workstation area to achieve… The continuous forward and rotational spraying process effectively reduces the setup of spraying operations and minimizes the space occupied by the production line. Both forward and rotational movement are driven by the turnover drive module 130, requiring only electrical control of this power mechanism. This simplifies the mechanical structure, effectively reducing the investment and maintenance costs of the power source and lowering energy consumption. By ensuring that the number of teeth on the actuating rack 210 is greater than or equal to the number of teeth on the ring gear 111, the sprayed product can achieve [certain functions] as it passes through the spraying area. With a complete rotation of more than one full cycle, all four surfaces of the product being coated are sequentially and without omission towards the different spray guns 220 during the forward process, effectively avoiding blind spots and ensuring comprehensive and uniform coating coverage, thus guaranteeing the final coating quality. The spray guns 220 are spaced apart along the extension direction of the rack 210, with overlapping coating edges between adjacent guns 220, resulting in a balanced paint distribution along the rack 210's extension direction. The synchronous rotation of the product during forward movement ensures a uniform and reliable coating effect with consistent thickness and high quality. The rotational motion is transmitted through the meshing of the ring gear 111 and the rack 210, maintaining a constant transmission ratio and preventing slippage. This ensures the accuracy and stability of the product's rotation. Furthermore, this rigid meshing transmission maintains strict synchronization between the product's rotation speed and the production line's travel speed, laying a solid foundation for precise and coordinated coating operations by multiple spray guns 220. This is particularly suitable for precision manufacturing applications where high coating consistency is required.
[0025] Specifically, the number of teeth of the ring gear 111 is equal to the number of teeth of the rack 210, which ensures that the ring gear 111 rotates exactly one revolution when passing the rack 210, and can further improve the uniformity of the coating on the surrounding surface of the sprayed product.
[0026] Understandably, the rotary spray coating production line also includes a drying component 300. The drying component 300 includes a drying protective cover 310, a heater 320, and a fan 330. The drying protective cover 310 is connected to the machine base 100. The heater 320 can be an electric heating rod. The drying protective cover 310 has a drying channel 311. The rotary chain 120 and its product positioning seat 110 pass through the drying channel 311. The heater 320 is located inside the drying protective cover 310. The fan 330 is located on the side of the heater 320 away from the rotary chain 120. When the fan 330 operates, it pumps external airflow towards the heater 320. The heat generated by the heater 320 is evenly diffused onto the sprayed product on the product positioning seat 110 under the pumping action of the fan 330, thereby curing the paint on the surface of the sprayed product. Along the forward direction of the rotary path, the drying component 300 is located behind the spray coating component 200.
[0027] Through the forced convection of the fan 330, the heat generated by the heater 320 can be rapidly and evenly diffused and surround the sprayed product, forming a uniform and controllable drying environment. Compared with simple radiant heating, this active hot air circulation can effectively avoid defects such as poor paint film curing, blistering, or orange peel texture caused by uneven heating of the sprayed product, significantly improving the curing quality and appearance consistency of the paint film. At the same time, since the production line operates continuously, the drying process is seamlessly connected to the spraying process, further improving the overall production efficiency. Along the forward direction of the turnover path, the drying component 300 is reasonably arranged behind the spraying component 200, ensuring the smoothness and rationality of the process flow.
[0028] Understandably, the rotary wrap-around spray coating production line also includes a loading and unloading assembly 400. The loading and unloading assembly 400 includes a support 410, a transfer drive module 420, and a clamping module 430. The transfer drive module 420 is connected to the support 410, and the clamping module 430 is connected to the transfer drive module 420. The transfer drive module 420 drives the clamping module 430 to reciprocate along the transfer path. One end of the transfer path is located above the turnover path, enabling the transfer drive module 420 to drive the clamping module 430 to clamp the sprayed product on the product positioning seat 110, thereby completing the loading and unloading action. Specifically, along the forward direction of the turnover path, a set of loading and unloading assemblies 400 is located in front of the spray coating assembly 200, and another set of loading and unloading assemblies 400 is located behind the drying assembly 300, achieving a closed loop at both ends of the production process, greatly reducing manual intervention and improving production safety and cycle consistency.
[0029] Specifically, the transfer drive module 420 includes a horizontally driven lead screw mechanism and a vertically driven cylinder. The cylinder is connected to the output end of the lead screw mechanism. The transfer drive module 420 can realize two-dimensional drive. The clamping module 430 is a pneumatic finger that can clamp the sprayed product or the fixture with the sprayed product.
[0030] It is understandable that the machine 100 is provided with a loading station 101, a first spraying station 102, a first drying station 103, a second spraying station 104, a second drying station 105 and a unloading station 106 arranged sequentially along the turnover path. The spraying component 200, the drying component 300 and the loading / unloading component 400 are each provided in two sets. The loading station 101 and the unloading station 106 are each provided with a corresponding loading / unloading component 400. The first spraying station 102 and the second spraying station 104 are each provided with a corresponding spraying component 200. The first drying station 103 and the second drying station 105 are each provided with a corresponding drying component 300.
[0031] Based on actual application needs, by setting up two sets of spraying stations and drying stations, the sprayed products can undergo two spraying and drying processes to meet special processing requirements such as multi-layer spraying or high-density spraying. The product can complete the processing of complex coating structures in one cycle, avoiding problems such as sagging and color mixing caused by repeated spraying at a single station. It can effectively control the number of products used on the production line and greatly enhance the process flexibility and applicability of the production line.
[0032] Understandably, the spraying assembly 200 also includes a spraying protective cover 230 connected to the machine base 100. The spraying protective cover 230 is equipped with a spraying channel 231 and an exhaust pipe 232. The turnover chain 120 and its product positioning seat 110 pass through the spraying channel 231, and one end of the exhaust pipe 232 is connected to an exhaust pump 233. The spraying protective cover 230 can confine the paint mist and volatile organic compounds (VOCs) generated during the spraying process within a closed space. Through the continuous suction of the exhaust pump 233, a directional airflow can be formed within the cover, efficiently collecting excess paint and harmful gases through the exhaust pipe 232 and transporting them to the subsequent environmental protection system. The environmental protection system can be a paint mist filter, activated carbon adsorption device, etc., which significantly improves the working environment quality of the spraying workshop, reduces air pollution, protects the health of operators, and strictly meets environmental protection requirements.
[0033] Specifically, when there are two sets of spraying components 200, the exhaust pumps 232 in the two sets of spraying components 200 are interconnected and connected to the same exhaust pump 233, which can effectively save the investment cost of the power mechanism and reduce the maintenance cost.
[0034] Understandably, the exhaust pipe 232 is located on the side of the turnover chain 120 away from the spray gun 220, and below the horizontal plane of the nozzle in the spray gun 220. By staggering the nozzle of the spray gun 220 and the exhaust pipe 232 to different heights, the airflow can be prevented from directly affecting the spraying effect, effectively improving the uniformity and reliability of the spraying effect. In addition, based on the settling characteristics of paint mist particles and the law of airflow movement, placing the horizontal height of the exhaust pipe 232 lower than that of the spray gun 220 is more conducive to capturing and collecting heavier paint mist particles that settle due to gravity and diffuse with the airflow, significantly improving the collection efficiency of pollutants and further improving the air quality in the spraying workshop.
[0035] Understandably, each product positioning seat 110 is equipped with a support rod 112. Based on actual application requirements, the slender support rod 112 supports the product being painted, providing ample space for the bottom of the product. The spray gun 220 can then spray the product from multiple angles, effectively eliminating the obstruction caused by traditional trays or large-area clamps, ensuring that the paint film covers every corner of the product, thus effectively improving the comprehensiveness of the painting effect. Specifically, the support rod 112 can be detachably connected to the product positioning seat 110 via quick-connect couplings or other detachable methods. The product being painted can be pre-clamped and fixed to the support rod 112 in other processes, and then the support rod 112 can be manually or via the loading / unloading assembly 400 to detach from the product positioning seat 110, resulting in high positioning accuracy and efficiency.
[0036] Understandably, referring to Figure 8 As shown, in another application state of this rotary circular spraying production line, the spraying assembly 200 also includes a protective baffle 150 connected to the machine base 100. The protective baffle 150 is located above the product positioning seat 110, and the circular gear 111 is connected to the bottom of the product positioning seat 110. The protective baffle 150 is provided with a matching clearance groove 151 for the support rod 112 to pass through. During operation, as the rotary chain 120 rotates, when the product positioning seat 110 reaches the spraying station where the spraying assembly 200 is located, the support rod 112 passes through the clearance groove 151. By using the protective baffle 150 as a physical barrier, problems such as transmission jamming, accelerated wear, or transmission inaccuracy caused by paint accumulation on the rotating gear 111 and the turnover chain 120 during the spraying process can be effectively avoided. This ensures the long-term reliability and accuracy of the rotating gear 111 under the drive of the rack 210, extends the service life of key transmission components, reduces the frequency of equipment maintenance, and improves the long-term reliability and accuracy of the turnover chain 120.
[0037] Although embodiments of the present invention have been shown and described, those skilled in the art will understand 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 claims and their equivalents.
Claims
1. A reusable, surround-type spraying production line, characterized in that, include: The machine (100) is provided with a product positioning seat (110), a turnover chain (120), a turnover drive module (130) and multiple chain gears (140). Each chain gear (140) is rotatably connected to the machine (100). The turnover chain (120) is wound around each chain gear (140). One chain gear (140) is connected to the turnover drive module (130). The turnover drive module (130) is used to drive the turnover chain (120) to move forward along the turnover path. Multiple product positioning seats (110) are provided and are rotatably connected to the turnover chain (120). Each product positioning seat (110) is provided with a ring gear (111). The spraying assembly (200) includes a gear rack (210) and a plurality of spray guns (220) located on one side of the rotation path. The gear rack (210) and each spray gun (220) are connected to the machine base (100). All the spray guns (220) are arranged at intervals along the extension direction of the gear rack (210). Each spray gun (220) is located above the gear rack (210). The gear rack (210) and the rotating gear (111) are at the same horizontal height. The gear rack (210) meshes with the corresponding rotating gear (111). The number of rotating teeth of the rotating gear (111) is less than or equal to the number of actuating teeth of the gear rack (210).
2. The reusable surround spraying production line according to claim 1, characterized in that, It also includes a drying assembly (300), which includes a drying protective cover (310), a heater (320) and a fan (330). The drying protective cover (310) is provided with a drying channel (311), the turnover chain (120) passes through the drying channel (311), the heater (320) is located inside the drying protective cover (310), and the fan (330) is located on the side of the heater (320) away from the turnover chain (120).
3. The reusable surround spraying production line according to claim 2, characterized in that, It also includes a loading and unloading assembly (400), which includes a bracket (410), a transfer drive module (420) and a clamping module (430). The transfer drive module (420) is connected to the bracket (410), and the clamping module (430) is connected to the transfer drive module (420). The transfer drive module (420) is used to drive the clamping module (430) to move along the transfer path, one end of which is located above the turnover path.
4. The reusable surround spraying production line according to claim 3, characterized in that, The machine (100) is provided with a loading station (101), a first spraying station (102), a first drying station (103), a second spraying station (104), a second drying station (105), and a unloading station (106) arranged sequentially along the turnover path. The spraying component (200), the drying component (300), and the loading / unloading component (400) are each provided in two sets. The loading station (101) and the unloading station (106) are each provided with the loading / unloading component (400). The first spraying station (102) and the second spraying station (104) are each provided with the spraying component (200). The first drying station (103) and the second drying station (105) are each provided with the drying component (300).
5. A reusable surround spraying production line according to claim 1, characterized in that, The spraying assembly (200) also includes a spraying protective cover (230), which is provided with a spraying channel (231) and an exhaust pipe (232). The turnover chain (120) passes through the spraying channel (231), and one end of the exhaust pipe (232) is connected to an exhaust pump (233).
6. A reusable surround spraying production line according to claim 5, characterized in that, The exhaust pipe (232) is located on the side of the turnover chain (120) away from the spray gun (220), and the exhaust pipe (232) is located below the horizontal plane where the spray gun (220) is located.
7. A reusable surround spraying production line according to claim 1, characterized in that, Each of the product positioning seats (110) is provided with a support rod (112).
8. A reusable surround spraying production line according to claim 7, characterized in that, The spraying assembly (200) also includes a protective baffle (150) connected to the machine base (100), the protective baffle (150) being located above the product positioning seat (110), the ring gear (111) being connected to the bottom of the product positioning seat (110), and the protective baffle (150) having a clearance groove (151) matching the support rod (112).