Multi-station parallel operation printing equipment and control method

Abstract

The invention discloses multi-station parallel operation printing equipment and a control method. The multi-station parallel operation printing equipment comprises a moving mechanism, a plurality of printing stations, a sliding rail mechanism, a plurality of printing mechanisms and a feeding and discharging mechanism. The head end and the tail end of the sliding rail mechanism are connected to form a closed machining channel. The moving mechanism is movably arranged on the sliding rail mechanism and used for clamping the multiple products and driving the multiple products to move on the machining channel. The multiple printing stations are sequentially arranged on one side of the machining channel in the y-axis direction, and each printing station is provided with a printing mechanism. And the feeding and discharging mechanism is arranged on the other side of the machining channel, and the feeding and discharging mechanism is used for clamping the to-be-printed product to the moving mechanism and taking down the printed product from the moving mechanism. The multi-color printing system has the beneficial effects that the overall efficiency of multi-color printing is greatly improved, and parallel operation of multiple products is achieved; complete separation of feeding, discharging and printing procedures is achieved, and work waiting is eliminated.

Description

Technical Field

[0001] This invention belongs to the technical field of cylindrical inkjet printers, and specifically relates to a multi-station parallel operation printing device and control method. Background Technology

[0002] When inkjet printing on cylindrical products (such as bottles, cans, and pipes), multi-color overprinting is usually required. The common printing method is single-station multiple printing, where multiple colors are printed sequentially at one printing station, resulting in extremely long overall printing time and low production efficiency. Summary of the Invention

[0003] To address the aforementioned problems, the primary objective of this invention is to provide a multi-station parallel printing device to solve the above-mentioned technical issues.

[0004] To achieve the above objectives, the technical solution of the present invention is as follows:

[0005] This invention provides a multi-station parallel printing device, including a moving mechanism, multiple printing stations, a slide rail mechanism, multiple printing mechanisms, and a loading and unloading mechanism;

[0006] The two ends of the slide rail mechanism are connected to form a closed processing channel;

[0007] The moving mechanism is mounted on the slide rail mechanism. The moving mechanism is used to clamp multiple products and drive the multiple products to move on the processing channel.

[0008] Multiple printing stations are arranged sequentially along the y-axis on one side of the processing channel, and each printing station is equipped with a printing mechanism.

[0009] The loading and unloading mechanism is located on the other side of the processing channel. It is used to clamp the product to be printed onto the moving mechanism and to remove the printed product from the moving mechanism.

[0010] Users can customize the printing colors and activation status of multiple printing stations according to product needs. Furthermore, users can flexibly configure color combinations for multiple printing stations based on order requirements, much like building blocks, to quickly respond to market changes.

[0011] The following describes the control method for a multi-station parallel printing device: where multiple printing stations include M printing stations, and M is an integer greater than or equal to 2.

[0012] The loading and unloading mechanism sequentially clamps the N products to be printed onto the moving mechanism, where N is an integer greater than or equal to 2 and N is greater than M;

[0013] The moving mechanism stops moving before reaching the M printing stations along the processing channel.

[0014] The moving mechanism guides the first product into the first printing station for printing;

[0015] The moving mechanism moves the first product to the second printing station for printing, and the moving mechanism moves the second product to the first printing station for printing.

[0016] The moving mechanism carries the first product to the Mth printing station for printing, the moving mechanism carries the second product to the (M-1)th printing station for printing, and the moving mechanism carries the Mth product to the first printing station for printing.

[0017] The moving mechanism guides the Nth product to the Mth printing station for printing.

[0018] The moving mechanism transports the printed N products to one side of the loading and unloading mechanism, which then removes the printed N products from the moving mechanism.

[0019] Compared with the prior art, the beneficial effects of this application are as follows:

[0020] First, it significantly improves the overall efficiency of multi-color printing, enabling parallel operation of multiple products: This application sets up multiple printing stations sequentially on one side of a closed processing channel, and uses a moving mechanism to simultaneously clamp multiple products. Combined with a multi-station collaborative control method, multiple products can sequentially enter different printing stations for parallel printing in a continuous flow. At any given time, different products are being printed in different colors at different printing stations, thus transforming the traditional "serial" printing mode into a "parallel" operation mode. This significantly shortens the total printing cycle of a single product and greatly improves the output efficiency per unit time. In this way, multiple products can be printed in different colors simultaneously at different printing stations, realizing parallel operation of multi-color printing. The overall cycle time of the equipment depends on the printing time of a single color, rather than the sum of the printing times of all colors.

[0021] Secondly, it achieves complete separation of the loading / unloading and printing processes, eliminating waiting time: This application places the loading / unloading mechanism on the other side of the processing channel, relatively independent of the printing station. After completing all printing processes, the moving mechanism transports the printed products in batches to the loading / unloading area for unified unloading and reloading, a process that does not interfere with the parallel printing operations at the printing station. Therefore, loading / unloading operations no longer occupy printing time, further improving the equipment's time utilization and avoiding the situation where the print head is idle due to loading / unloading in traditional equipment.

[0022] Furthermore, the moving mechanism includes multiple moving components, which are sequentially and movably mounted on the slide rail mechanism.

[0023] Furthermore, the moving component includes a moving worktable, a support, and a workpiece. The moving worktable is movably mounted on a slide rail mechanism, the support is mounted on the moving worktable, the workpiece is rotatably connected to the support, the workpiece is used to clamp the product, and the moving worktable drives the product to move on the processing channel.

[0024] Furthermore, the printing mechanism includes an x-axis support frame, an x-axis drive, and a printing assembly. The x-axis support frame is mounted above the slide rail mechanism along the x-axis direction. The printing assembly is movably mounted on the x-axis support frame via the x-axis drive, so that the x-axis drive can drive the printing assembly to move along the x-axis direction. Preferably, the x-axis drive can be a conventional slide rail assembly.

[0025] Furthermore, a working station and a standby station are sequentially arranged on the x-axis support frame. The working station is located above the slide rail mechanism, and the x-axis drive is used to drive the printing assembly to move between the working station and the standby station.

[0026] When the moving worktable moves to below the x-axis support frame, the x-axis drive drives the printing assembly to move from the standby station to the working station.

[0027] Furthermore, the printing assembly includes a printhead and a curing unit. The printhead is used for monochrome printing; the curing unit employs a UV-LED or IR curing device to instantly cure the printed product, thereby fixing the pattern.

[0028] Furthermore, the printing mechanism also includes a rotating component, which is disposed on one side of the slide rail mechanism, and the moving component also includes a rotary drive shaft, which passes through the bracket and connects to the workpiece;

[0029] When the movable worktable moves below the x-axis support frame, the rotating assembly and the rotary drive shaft connect, and the rotating assembly drives the workpiece to rotate via the rotary drive shaft. Preferably, the rotating assembly and the rotary drive shaft can be magnetically connected. Preferably, the rotating assembly can be a rotary motor.

[0030] Furthermore, the loading and unloading mechanism includes a loading component and an unloading component. The loading component includes a loading robot and a loading conveyor belt positioned on one side of the loading robot. The unloading component includes an unloading robot, an unloading conveyor belt positioned on one side of the unloading robot, and a defective product conveyor belt positioned on the other side of the unloading robot. The loading conveyor belt transports the products to be printed. The loading robot picks up the products to be printed and places them on a moving worktable. The inspection mechanism checks whether the printed products are qualified. The unloading robot picks up the qualified products and places them on the unloading conveyor belt, while the unloading robot picks up the unqualified products and places them on the defective product conveyor belt.

[0031] Furthermore, the printing equipment also includes a calibration and scanning station, a plasma processing station, a pre-coating station, an inspection station, and an enhancement station, which are respectively located on the other side of the processing channel.

[0032] Furthermore, on the side of the feeding assembly away from the unloading assembly, a calibration and scanning station, a plasma treatment station, and a pre-coating station are arranged in sequence; on the side of the unloading assembly away from the feeding assembly, an inspection station and an efficiency enhancement station are arranged in sequence.

[0033] The calibration and scanning stations are used to install the product calibration mechanism and the contour scanning mechanism. The product calibration mechanism automatically detects the positional deviation of the product on the workpiece using visual or mechanical sensors and performs preliminary mechanical calibration, laying the foundation for subsequent high-precision processes. The contour scanning mechanism uses a high-precision 3D vision sensor to automatically acquire the precise three-dimensional dimensions, contour, and actual spatial coordinates of the product at the station, and sends the data to the central control system and the printing mechanism in real time.

[0034] The plasma treatment station is used to install the plasma treatment mechanism. The plasma treatment mechanism is used to clean and activate the product surface by bombarding it with low-temperature plasma, which is suitable for substrates such as plastics that are prone to static electricity or have low surface energy, thereby improving the adhesion of subsequent coatings.

[0035] The pre-coating station is used to install the pre-coating mechanism, which applies a layer of pre-coating liquid to the product surface through precision spraying or roller coating to enhance ink adhesion, improve color performance, or achieve special texture effects.

[0036] The inspection station is used to install the inspection mechanism, which includes a post-printing online inspection unit and a pre-unloading final inspection unit. It uses machine vision to automatically detect printing quality, identify defects, and associate the results with the corresponding product's clamping station code, instructing the unloading robot to sort the products.

[0037] The enhancement station is used to install enhancement process mechanisms, which are modular optional units that can integrate processes such as varnishing, spot UV coating, and hot stamping (cold stamping) to improve the visual or tactile effects of products.

[0038] Furthermore, the printing equipment also includes a central control system, which coordinates the synchronous operation of all mechanisms, processes visual data, motion control, print task queue scheduling, and production data management.

[0039] Furthermore, the slide rail mechanism includes a magnetically levitated transport rail. The magnetically levitated transport rail possesses micron-level precision positioning and stopping capability.

[0040] Compared with the prior art, the beneficial effects of this application are as follows:

[0041] First, it significantly improves the overall efficiency of multi-color printing, enabling parallel operation of multiple products: This application sets up multiple printing stations sequentially on one side of a closed processing channel, and uses a moving mechanism to simultaneously clamp multiple products. Combined with a multi-station collaborative control method, multiple products can sequentially enter different printing stations for parallel printing in a continuous flow. At any given time, different products are being printed in different colors at different printing stations, thus transforming the traditional "serial" printing mode into a "parallel" operation mode. This significantly shortens the total printing cycle of a single product and greatly improves the output efficiency per unit time. In this way, multiple products can be printed in different colors simultaneously at different printing stations, realizing parallel operation of multi-color printing. The overall cycle time of the equipment depends on the printing time of a single color, rather than the sum of the printing times of all colors.

[0042] Secondly, it achieves complete separation of the loading / unloading and printing processes, eliminating waiting time: This application places the loading / unloading mechanism on the other side of the processing channel, relatively independent of the printing station. After completing all printing processes, the moving mechanism transports the printed products in batches to the loading / unloading area for unified unloading and reloading, a process that does not interfere with the parallel printing operations at the printing station. Therefore, loading / unloading operations no longer occupy printing time, further improving the equipment's time utilization and avoiding the situation where the print head is idle due to loading / unloading in traditional equipment.

[0043] Third, the combination of closed-loop integration of the entire process chain and high-precision magnetic levitation conveyor: The complete process chain, including pretreatment (correction, scanning, plasma printing, pre-coating), multi-station printing, post-treatment (curing, enhancement), and online inspection, is deeply integrated with a high-speed, high-precision magnetic levitation conveyor line on a single host platform. This not only achieves automation but, more importantly, ensures the consistency of product positioning benchmarks and the accuracy of transmission throughout such a long and complex process chain. This is the physical foundation for achieving high-quality multi-station overprinting.

[0044] Fourth, highly modular and configurable flexible design: Pre-set printing stations and optional enhancement modules transform the equipment from a machine with fixed functions into a printing production platform. Users can flexibly configure the color combinations used at each printing station, as well as the pre-processing and post-processing routes, like building blocks, according to order requirements, quickly responding to market changes. Attached Figure Description

[0045] Figure 1 This is an overall structural diagram of a multi-station parallel printing device.

[0046] Figure 2 yes Figure 1 A structural diagram from another perspective.

[0047] Figure 3 yes Figure 2 Enlarged view of part A in the middle.

[0048] In the diagram: 1. Slide rail mechanism; 11. Processing channel; 2. Moving mechanism; 12. Printing station; 3. Printing mechanism; 4. Loading and unloading mechanism; 21. Moving component; 211. Moving worktable; 212. Support; 213. Workpiece; 31. X-axis support frame; 32. X-axis drive component; 33. Printing component; 311. Working station; 312. Standby station; 331. Print head; 332. Curing device; 34. Rotating component; 214. Rotating drive shaft; 41. Loading component; 42. Unloading component; 411. Loading robot; 412. Loading conveyor belt; 421. Unloading robot; 422. Unloading conveyor belt; 423. Defective product conveyor belt; 51. Calibration and scanning station; 52. Plasma treatment station; 53. Pre-coating station; 54. Inspection station; 55. Efficiency enhancement station. Detailed Implementation

[0049] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0050] To achieve the above objectives, the technical solution of the present invention is as follows:

[0051] See Figures 1-3 As shown, the present invention provides a printing device for multi-station parallel operation, including a moving mechanism 2, multiple printing stations 12, a slide rail mechanism 1, multiple printing mechanisms 3, and a loading and unloading mechanism 4.

[0052] The two ends of the slide rail mechanism 1 are connected to form a closed processing channel 11;

[0053] The moving mechanism 2 is movably mounted on the slide rail mechanism 1. The moving mechanism 2 is used to clamp multiple products and drive the multiple products to move on the processing channel 11.

[0054] Multiple printing stations 12 are arranged sequentially along the y-axis on one side of the processing channel 11, and a printing mechanism 3 is provided on each printing station 12;

[0055] The loading and unloading mechanism 4 is located on the other side of the processing channel 11. The loading and unloading mechanism 4 is used to clamp the product to be printed onto the moving mechanism 2, and to remove the printed product from the moving mechanism 2. Figure 1 As shown, the overall length of the equipment is defined as the Y-axis direction, and the overall width of the equipment is defined as the X-axis direction.

[0056] Users can customize the printing colors and activation status of multiple printing stations 12 according to product needs. Furthermore, users can flexibly configure color combinations for multiple printing stations 12, like building blocks, to quickly respond to market changes based on order requirements.

[0057] The following describes the control method of a multi-station parallel printing device: wherein, the multiple printing stations 12 include M printing stations 12, where M is an integer greater than or equal to 2.

[0058] The loading and unloading mechanism 4 sequentially clamps the N products to be printed onto the moving mechanism 2, where N is an integer greater than or equal to 2 and N is greater than M;

[0059] The moving mechanism 2 moves along the processing channel 11 to the M printing stations 12, and then stops moving.

[0060] The moving mechanism 2 moves the first product into the first printing station 12 for printing;

[0061] The moving mechanism 2 moves the first product into the second printing station 12 for printing, and the moving mechanism 2 moves the second product into the first printing station 12 for printing.

[0062] The moving mechanism 2 carries the first product to the Mth printing station 12 for printing, the moving mechanism 2 carries the second product to the M-1th printing station 12 for printing, and the moving mechanism 2 carries the Mth product to the first printing station 12 for printing.

[0063] The moving mechanism 2 moves the Nth product into the Mth printing station 12 for printing;

[0064] The moving mechanism 2 transports the printed N products to one side of the loading and unloading mechanism 4, and the loading and unloading mechanism 4 removes the printed N products from the moving mechanism 2.

[0065] Compared with the prior art, the beneficial effects of this application are as follows:

[0066] First, it significantly improves the overall efficiency of multi-color printing, enabling parallel operation of multiple products: This application sets up multiple printing stations 12 sequentially on one side of a closed processing channel 11, and uses a moving mechanism 2 to simultaneously clamp multiple products. Combined with a multi-station collaborative control method, multiple products can sequentially enter different printing stations 12 for parallel printing. At any given time, different products are being printed in different colors at different printing stations 12, thus transforming the traditional "serial" printing mode into a "parallel" operation mode. This significantly shortens the total printing cycle of a single product and greatly improves the output efficiency per unit time. In this way, multiple products can be printed in different colors simultaneously at different printing stations 12, realizing parallel operation of multi-color printing. The overall cycle time of the equipment depends on the printing time of a single color, rather than the sum of the printing times of all colors.

[0067] Secondly, it achieves complete separation of the loading / unloading and printing processes, eliminating waiting time: This application places the loading / unloading mechanism 4 on the other side of the processing channel 11, relatively independent of the printing station 12. After completing all printing processes, the moving mechanism 2 transports the printed products in batches to the loading / unloading area for unified unloading and reloading. This process does not interfere with the parallel printing operations on the printing station 12. Therefore, the loading / unloading operation no longer occupies printing time, further improving the equipment's time utilization rate and avoiding the situation where the print head 331 is idle due to loading / unloading in traditional equipment.

[0068] Furthermore, the moving mechanism 2 includes multiple moving components 21, which are sequentially and movably arranged on the slide rail mechanism 1.

[0069] Furthermore, the moving component 21 includes a moving worktable 211, a support 212, and a workpiece 213. The moving worktable 211 is movably mounted on the slide rail mechanism 1, the support 212 is mounted on the moving worktable 211, and the workpiece 213 is rotatably connected to the support 212. The workpiece 213 is used to clamp the product, and the moving worktable 211 drives the product to move on the processing channel 11.

[0070] Furthermore, the printing mechanism 3 includes an x-axis support frame 31, an x-axis drive component 32, and a printing assembly 33. The x-axis support frame 31 is mounted above the slide rail mechanism 1 along the x-axis direction. The printing assembly 33 is movably mounted on the x-axis support frame 31 via the x-axis drive component 32, so that the printing assembly 33 can be driven to move along the x-axis direction by the x-axis drive component 32. Preferably, the x-axis drive component 32 can be a conventional slide rail assembly.

[0071] Furthermore, a working station 311 and a standby station 312 are sequentially arranged on the x-axis support frame 31. The working station 311 is located above the slide rail mechanism 1, and the x-axis drive unit 32 is used to drive the printing component 33 to move between the working station 311 and the standby station 312.

[0072] When the mobile worktable 211 moves to the underside of the x-axis support frame 31, the x-axis drive 32 drives the printing assembly 33 to move from the standby station 312 to the working station 311.

[0073] Furthermore, the printing assembly 33 includes a printhead 331 and a curing device 332. The printhead 331 is used for monochrome printing; the curing device 332 employs a UV-LED or IR curing device to instantly cure the printed product, thereby fixing the pattern.

[0074] Furthermore, the printing mechanism 3 also includes a rotating component 34, which is disposed on one side of the slide rail mechanism 1, and the moving component 21 also includes a rotating drive shaft 214, which passes through the bracket 212 and is connected to the workpiece 213.

[0075] When the movable worktable 211 moves below the x-axis support frame 31, the rotating assembly 34 and the rotary drive shaft 214 are connected, and the rotating assembly 34 drives the workpiece 213 to rotate via the rotary drive shaft 214. Preferably, the rotating assembly 34 and the rotary drive shaft 214 can be magnetically connected. Preferably, the rotating assembly 34 can be a rotary motor.

[0076] Furthermore, the loading and unloading mechanism 4 includes a loading component 41 and an unloading component 42. The loading component 41 includes a loading robot 411 and a loading conveyor belt 412 disposed on one side of the loading robot 411. The unloading component 42 includes an unloading robot 421, an unloading conveyor belt 422 disposed on one side of the unloading robot 421, and a defective product conveyor belt 423 disposed on the other side of the unloading robot 421. The loading conveyor belt 412 transports the products to be printed. The loading robot 411 picks up the products to be printed and places them on the movable worktable 211. The inspection mechanism checks whether the printed products are qualified. The unloading robot 421 picks up the qualified products and places them on the unloading conveyor belt 422, while the unloading robot 421 picks up the unqualified products and places them on the defective product conveyor belt 423.

[0077] Furthermore, the printing equipment also includes a calibration and scanning station 51, a plasma processing station 52, a pre-coating station 53, an inspection station 54, and an enhancement station 55, which are respectively located on the other side of the processing channel 11.

[0078] Furthermore, on the side of the feeding assembly 41 away from the unloading assembly 42, a calibration and scanning station 51, a plasma treatment station 52, and a pre-coating station 53 are arranged in sequence; on the side of the unloading assembly 42 away from the feeding assembly 41, an inspection station 54 and an efficiency enhancement station 55 are arranged in sequence.

[0079] The calibration and scanning station 51 is used to install the product calibration mechanism and the contour scanning mechanism. The product calibration mechanism automatically detects the positional deviation of the product on the workpiece 213 through vision or mechanical sensors and performs preliminary mechanical calibration, laying the foundation for subsequent high-precision processes. The contour scanning mechanism uses a high-precision 3D vision sensor to automatically acquire the precise three-dimensional dimensions, contour, and actual spatial coordinates of the product at the station, and sends the data to the central control system and the printing mechanism 3 in real time.

[0080] Plasma treatment station 52 is used to install a plasma treatment mechanism. The plasma treatment mechanism is used to clean and activate the product surface by bombarding it with low-temperature plasma, such as plastics, which are prone to static electricity or have low surface energy, thereby improving the adhesion of subsequent coatings.

[0081] The pre-coating station 53 is used to install the pre-coating mechanism, which applies a layer of pre-coating liquid to the product surface through precision spraying or roller coating to enhance ink adhesion, improve color performance, or achieve special texture effects.

[0082] Inspection station 54 is used to install inspection mechanisms, which include a post-printing online inspection unit and a pre-unloading final inspection unit. Machine vision is used to automatically detect printing quality, identify defects, and associate the results with the corresponding product clamping station code, instructing the unloading robot 421 to sort the products.

[0083] The enhancement station 55 is used to install enhancement process mechanisms. These mechanisms are modular and optional, and can integrate processes such as varnishing, spot UV coating, and hot stamping (cold stamping) to improve the visual or tactile effects of products.

[0084] Furthermore, the printing equipment also includes a central control system, which coordinates the synchronous operation of all mechanisms, processes visual data, motion control, print task queue scheduling, and production data management.

[0085] Furthermore, the slide rail mechanism 1 includes a magnetically levitated transport rail. The magnetically levitated transport rail has micron-level precision positioning and stopping capability.

[0086] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A printing device for multi-station parallel operation, characterized in that, It includes a moving mechanism, multiple printing stations, a slide rail mechanism, multiple printing mechanisms, and a loading and unloading mechanism; The two ends of the slide rail mechanism are connected to form a closed processing channel; The moving mechanism is mounted on the slide rail mechanism. The moving mechanism is used to clamp multiple products and drive the multiple products to move on the processing channel. Multiple printing stations are arranged sequentially along the y-axis on one side of the processing channel, and each printing station is equipped with a printing mechanism. The loading and unloading mechanism is located on the other side of the processing channel. It is used to clamp the product to be printed onto the moving mechanism and to remove the printed product from the moving mechanism.

2. The multi-station parallel printing device as described in claim 1, characterized in that, The moving mechanism includes multiple moving components, which are sequentially and movably mounted on the slide rail mechanism.

3. The printing device for multi-station parallel operation as described in claim 2, characterized in that, The moving component includes a moving worktable, a support, and a workpiece. The moving worktable is movably mounted on a slide rail mechanism, the support is mounted on the moving worktable, and the workpiece is rotatably connected to the support. The workpiece is used to clamp the product, and the moving worktable drives the product to move on the processing channel.

4. The multi-station parallel printing device as described in claim 3, characterized in that, The printing mechanism includes an x-axis support frame, an x-axis drive, and a printing component. The x-axis support frame is mounted above the slide rail mechanism along the x-axis direction. The printing component is movably mounted on the x-axis support frame via the x-axis drive, so that the printing component can be driven to move along the x-axis direction.

5. The multi-station parallel printing device as described in claim 4, characterized in that, The working station and the standby station are arranged sequentially on the x-axis support frame. The working station is located above the slide rail mechanism. The x-axis drive is used to drive the printing assembly to move between the working station and the standby station. When the moving worktable moves to below the x-axis support frame, the x-axis drive drives the printing assembly to move from the standby station to the working station.

6. The multi-station parallel printing device as described in claim 4, characterized in that, The printing mechanism also includes a rotating component, which is located on one side of the slide rail mechanism. The moving component also includes a rotary drive shaft, which passes through the bracket and connects to the workpiece. When the movable worktable moves to below the x-axis support frame, the rotating assembly and the rotary drive shaft are connected, and the rotating assembly drives the workpiece to rotate through the rotary drive shaft.

7. The multi-station parallel printing device as described in claim 1, characterized in that, The loading and unloading mechanism includes a loading component and an unloading component. The loading component includes a loading robot and a loading conveyor belt located on one side of the loading robot. The unloading component includes an unloading robot, an unloading conveyor belt located on one side of the unloading robot, and a defective product conveyor belt located on the other side of the unloading robot.

8. The printing device for multi-station parallel operation as described in claim 7, characterized in that, The printing equipment also includes a calibration and scanning station, a plasma processing station, a pre-coating station, an inspection station, and an enhancement station. The calibration and scanning station, the plasma processing station, the pre-coating station, the inspection station, and the enhancement station are each located on the other side of the processing channel.

9. The multi-station parallel printing device as described in claim 8, characterized in that, On the side of the feeding assembly away from the unloading assembly, there are sequentially arranged a calibration and scanning station, a plasma treatment station, and a pre-coating station; on the side of the unloading assembly away from the feeding assembly, there are sequentially arranged a detection station and an efficiency enhancement station.

10. A control method for a multi-station parallel printing device, applied to the multi-station parallel printing device according to any one of claims 1-9, characterized in that, The multiple printing stations include M printing stations, where M is an integer greater than or equal to 2. The control method includes: The loading and unloading mechanism sequentially clamps the N products to be printed onto the moving mechanism, where N is an integer greater than or equal to 2 and N is greater than M; The moving mechanism stops moving before reaching the M printing stations along the processing channel. The moving mechanism guides the first product into the first printing station for printing; The moving mechanism moves the first product to the second printing station for printing, and the moving mechanism moves the second product to the first printing station for printing. The moving mechanism carries the first product to the Mth printing station for printing, the moving mechanism carries the second product to the (M-1)th printing station for printing, and the moving mechanism carries the Mth product to the first printing station for printing. The moving mechanism guides the Nth product to the Mth printing station for printing. The moving mechanism transports the printed N products to one side of the loading and unloading mechanism, which then removes the printed N products from the moving mechanism.

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