Double-shaft ink-jet printing equipment and control method

Abstract

The invention discloses double-shaft ink-jet printing equipment and a control method. The double-shaft ink-jet printing equipment comprises a rack, and a working station and a feeding and discharging station are arranged on one side of the rack; the ink-jet printing mechanism is movably arranged on the rack; the rotating shaft mechanism is rotationally arranged on the rack, the rotating shaft mechanism comprises a first rotating shaft assembly and a second rotating shaft assembly, and the first rotating shaft assembly and the second rotating shaft assembly alternately move to the working station from the feeding and discharging station; the first rotating shaft assembly is used for clamping a first blank, and the second rotating shaft assembly is used for clamping a second blank. The method has the beneficial effects that the equipment utilization rate and the production efficiency are remarkably improved; continuous automatic production is achieved, and the output speed is increased; the operation process is optimized, and the auxiliary time proportion is reduced; the operation stability and the printing quality of equipment are improved; and a good structural basis is provided for automatic upgrading.

Description

Technical Field

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

[0002] Cylindrical inkjet printing technology is widely used for surface pattern decoration on various cylindrical products, such as beverage cans, packaging bottles, tubular containers, and industrial parts. Existing cylindrical inkjet printers typically employ a single-axis design, with the printing mechanism working in conjunction with a single rotating carrier axis. During a printing operation, the inkjet blank must first be manually or automatically clamped onto the carrier axis. Then, the printing program is started, and the inkjet printing mechanism prints the surface pattern while the blank rotates. After printing is complete, the machine must be stopped, and the printed blank must be removed and replaced with a new blank before the next printing cycle can begin.

[0003] This single-axis operation mode suffers from significant efficiency bottlenecks. Because loading and unloading operations must be performed with the equipment completely stopped, the printing and loading / unloading processes cannot overlap in time, creating an alternating, discontinuous workflow. Throughout the entire work cycle, the actual effective printing time is relatively low, with a significant amount of time consumed in non-productive loading and unloading processes. Especially for mass production, frequent start-ups and shutdowns not only reduce equipment utilization and output per unit time but also increase the workload and auxiliary time for operators. Therefore, existing single-axis cylindrical inkjet printers are clearly insufficient for achieving efficient, continuous, and automated production. Summary of the Invention

[0004] To address the aforementioned problems, the primary objective of this invention is to provide a dual-axis inkjet printing device to solve the above-mentioned technical issues.

[0005] To achieve the above objectives, the technical solution of the present invention is as follows:

[0006] This invention provides a dual-axis inkjet printing device, comprising:

[0007] The machine frame has a working station and a loading / unloading station on one side;

[0008] The inkjet printing mechanism is movably mounted on the frame.

[0009] The rotating shaft mechanism is rotatably mounted on the frame. The rotating shaft mechanism includes a first rotating shaft assembly and a second rotating shaft assembly, which alternately move from the loading / unloading station to the working station.

[0010] The first rotating shaft assembly is used to clamp the first blank, and the second rotating shaft assembly is used to clamp the second blank. Preferably, the first blank and the second blank are cylindrical objects.

[0011] The control methods for dual-axis inkjet printers are described below:

[0012] The first blank is clamped on the first rotating shaft assembly, and the second blank is clamped on the second rotating shaft assembly;

[0013] The inkjet printing mechanism moves on the frame to avoid the rotation of the spindle mechanism;

[0014] The rotating shaft mechanism rotates on the frame. The first rotating shaft assembly drives the first blank to rotate to the working position, and the second rotating shaft assembly rotates to the loading and unloading position.

[0015] The inkjet printing mechanism moves above the workstation and prints the first blank.

[0016] The inkjet printing mechanism moves on the frame to avoid the rotation of the spindle mechanism;

[0017] The rotating shaft mechanism rotates on the frame. The second rotating shaft assembly drives the second blank to rotate to the working position. The first rotating shaft assembly drives the first blank to rotate to the loading and unloading position. The printed first blank is removed from the first rotating shaft assembly. Another first blank is clamped on the first rotating shaft assembly.

[0018] The inkjet printing mechanism moves above the workstation and prints the second blank.

[0019] The inkjet printing mechanism moves on the frame to avoid the rotation of the spindle mechanism;

[0020] The rotating shaft mechanism rotates on the frame. The first rotating shaft assembly drives the first blank to rotate to the working position. The second rotating shaft assembly drives the second blank to rotate to the loading and unloading position. The printed second blank is removed from the second rotating shaft assembly, and another second blank is clamped on the second rotating shaft assembly.

[0021] The dual-axis inkjet printing device provided in this application, by setting up an alternately rotatable first and second rotating shaft assembly, and coordinating with the avoidance and movement actions of the inkjet printing mechanism, achieves simultaneous loading and unloading operations during the printing process. Its beneficial effects are mainly reflected in the following aspects:

[0022] First, it significantly improves equipment utilization and production efficiency: By using a dual-axis alternating operation, the originally sequential "printing" and "loading / unloading" processes are transformed into parallel processing. While the first blank on the first spindle assembly is being printed at the workstation, the operator or robot can simultaneously replace the second blank on the second spindle assembly at the loading / unloading station. This overlap in time eliminates the waiting time caused by single-axis equipment stopping for loading / unloading, allowing the inkjet printing mechanism to work continuously, thereby greatly improving the overall utilization rate of the equipment.

[0023] Secondly, it enables continuous automated production and increases output speed: Based on the aforementioned alternating work process, the entire production process can proceed continuously without frequent start-ups and shutdowns. The equipment maintains a stable working rhythm, effectively increasing the number of printed products per unit time, and better meeting the needs of large-scale industrial production.

[0024] Third, the operation process is optimized to reduce the proportion of auxiliary time: the loading and unloading operations are independent of the printing station, providing more operating space and eliminating interference from printhead movement. This not only reduces the difficulty and labor intensity of operation but also allows for more relaxed and accurate loading and unloading actions, reducing the risk of errors caused by hasty operations and further shortening the time for auxiliary operations.

[0025] Fourth, it improves the operational stability and print quality of the equipment: During operation, the inkjet printing mechanism's avoidance and movement movements are coordinated with the rotation of the shaft mechanism, preventing mechanical interference during printing. This orderly motion control logic ensures precise positioning of the print head in each operation, reducing unnecessary vibration and waiting time, and guaranteeing stable, high-quality inkjet printing results.

[0026] Fifth, it provides a solid structural foundation for automation upgrades: the dual-axis layout is clearly defined, with the working station and loading / unloading station spatially separated, facilitating the integration of automated loading / unloading robots or conveyors. This design allows the equipment to be smoothly upgraded from semi-automatic operation to a fully automated production line, demonstrating excellent scalability and forward-looking design.

[0027] In summary, this application solves the problem of low utilization rate of existing single-axis cylindrical printers through a clever dual-axis alternating design, and realizes parallel processing of printing and loading / unloading, thereby bringing beneficial effects in terms of improving production efficiency, optimizing operation process and ensuring print quality.

[0028] Furthermore, the rotating shaft mechanism also includes a connecting plate and a rotating shaft component, with one end of the connecting plate movably connected to the first rotating shaft assembly and the other end of the connecting plate movably connected to the second rotating shaft assembly;

[0029] A rotating shaft is mounted on the frame and connected to a connecting plate. The rotating shaft drives the connecting plate to rotate, which in turn drives the first and second rotating shaft assemblies to rotate. The rotating shaft can be a drive motor.

[0030] Furthermore, the rotating shaft mechanism also includes a first rotating shaft drive motor and a second rotating shaft drive motor. The first rotating shaft drive motor is movably mounted on the frame along the x-axis direction, and the second rotating shaft drive motor is movably mounted on the frame along the x-axis direction. The first rotating shaft drive motor and the second rotating shaft drive motor are respectively located on both sides of the rotating shaft component.

[0031] Furthermore, the first rotating shaft assembly includes a first rotating shaft and a first workpiece. One end of the first rotating shaft extends through the connecting plate and has a first joint. The other end of the first rotating shaft is connected to the first workpiece, which is used to clamp the first blank.

[0032] The second rotating shaft assembly includes a second rotating shaft and a second workpiece. One end of the second rotating shaft extends through a connecting plate and has a second joint. The other end of the second rotating shaft is connected to the second workpiece, which is used to clamp the second blank.

[0033] Furthermore, a third engagement portion is provided on the rotating shaft of the first rotating shaft drive motor, and a fourth engagement portion is provided on the rotating shaft of the second rotating shaft drive motor; the third engagement portion is used to connect with the first engagement portion, and the fourth engagement portion is used to connect with the second engagement portion. Preferably, the third engagement portion and the first engagement portion can be magnetically connected, and the fourth engagement portion and the second engagement portion can be magnetically connected.

[0034] In a working scenario, a first rotating shaft drive motor moves along the x-axis, causing a first joint to abut against a third joint, and the first and third joints are magnetically connected. The rotating shaft of the first rotating shaft drive motor drives a first rotating shaft to rotate, which in turn drives a first workpiece to rotate. A first blank is coated on the outer surface of the first workpiece, and the first workpiece drives the first blank to rotate.

[0035] The second rotating shaft drive motor moves along the x-axis, causing the second joint to abut against the fourth joint. The second joint and the fourth joint are magnetically connected. The rotating shaft of the second rotating shaft drive motor drives the second rotating shaft to rotate, which in turn drives the second workpiece to rotate. The second workpiece is coated with a second blank, which is rotated by the second workpiece.

[0036] When the first rotating shaft is in the working position, the inkjet printing mechanism moves above the working position and prints on the outer surface of the first blank. When the second rotating shaft is in the working position, the inkjet printing mechanism moves above the working position and prints on the outer surface of the second blank.

[0037] In another working scenario, the first rotating shaft drive motor moves along the x-axis, causing the third joint to move away from the first joint; the second rotating shaft drive motor moves along the x-axis, causing the fourth joint to move away from the second joint. The rotating shaft component drives the connecting plate to rotate, which in turn drives the first and second rotating shafts to rotate, causing the first and second workpieces to exchange positions.

[0038] Furthermore, the inkjet printing mechanism includes at least one inkjet printhead and a motion component. The motion component is movably mounted on the frame, and the inkjet printhead is connected to the motion component to drive the inkjet printhead to move along the x-axis, y-axis, and z-axis directions. Preferably, the motion component can be a drive unit in which x-axis, y-axis, and z-axis motion components are assembled together, wherein the x-axis, y-axis, and z-axis motion components can be belt drives and slide rail assemblies.

[0039] Furthermore, the dual-axis inkjet printing equipment also includes a positioning component, which is movably positioned above the loading and unloading station to meet the positioning requirements for clamping first or second workpieces of different lengths.

[0040] Furthermore, the positioning component includes a laser positioning lamp, which, by adjusting the first or second workpiece located at the loading / unloading station, ensures that the laser emitted by the laser positioning lamp is projected onto the edge of the first or second blank located at the loading / unloading station. This allows the first workpiece to accurately clamp the first blank, and the second workpiece to accurately clamp the second blank, ensuring that the workpiece's rotation center coincides with the rotation axis, thereby guaranteeing printing quality and preventing operational risks caused by clamping misalignment.

[0041] Furthermore, marking points are respectively set on the first and second blanks; by adjusting the first or second workpiece located at the loading / unloading station, it is ensured that the laser emitted by the laser positioning lamp is projected onto the marking points on the first or second blank located at the loading / unloading station. This ensures that the first workpiece accurately clamps the first blank, and the second workpiece accurately clamps the second blank, ensuring that the rotation center of the workpiece coincides with the rotation axis, thereby guaranteeing printing quality and preventing operational risks caused by clamping misalignment.

[0042] Furthermore, the dual-axis inkjet printer also includes a hardware interlock circuit and a switching button, which is electrically connected to the rotating shaft mechanism via the hardware interlock circuit;

[0043] When the inkjet printing mechanism is working, the hardware interlock circuit is disconnected. Pressing the switch button will prevent the rotating shaft mechanism from rotating. The hardware interlock circuit is a conventional hardware locking circuit, which is designed to prevent the hardware from operating under specific conditions.

[0044] When the inkjet printing mechanism stops working, the hardware interlock circuit is activated. Pressing the switching button causes the rotating shaft mechanism to rotate, allowing the first and second rotating shaft assemblies to interchange positions. This ensures that during printing, no software command or accidental touch can initiate position switching, fundamentally eliminating safety accidents caused by motion interference due to misoperation or software malfunction.

[0045] Furthermore, safety light curtains are installed outside the workstations and loading / unloading stations. These safety light curtains serve as auxiliary external protection. They are conventional photoelectric safety protection devices.

[0046] The dual-axis inkjet printing device provided in this application, by setting up an alternately rotatable first and second rotating shaft assembly, and coordinating with the avoidance and movement actions of the inkjet printing mechanism, achieves simultaneous loading and unloading operations during the printing process. Its beneficial effects are mainly reflected in the following aspects:

[0047] First, it significantly improves equipment utilization and production efficiency: By using a dual-axis alternating operation, the originally sequential "printing" and "loading / unloading" processes are transformed into parallel processing. While the first blank on the first spindle assembly is being printed at the workstation, the operator or robot can simultaneously replace the second blank on the second spindle assembly at the loading / unloading station. This overlap in time eliminates the waiting time caused by single-axis equipment stopping for loading / unloading, allowing the inkjet printing mechanism to work continuously, thereby greatly improving the overall utilization rate of the equipment.

[0048] Secondly, it enables continuous automated production and increases output speed: Based on the aforementioned alternating work process, the entire production process can proceed continuously without frequent start-ups and shutdowns. The equipment maintains a stable working rhythm, effectively increasing the number of printed products per unit time, and better meeting the needs of large-scale industrial production.

[0049] Third, the operation process is optimized to reduce the proportion of auxiliary time: the loading and unloading operations are independent of the printing station, providing more operating space and eliminating interference from printhead movement. This not only reduces the difficulty and labor intensity of operation but also allows for more relaxed and accurate loading and unloading actions, reducing the risk of errors caused by hasty operations and further shortening the time for auxiliary operations.

[0050] Fourth, it improves the operational stability and print quality of the equipment: During operation, the inkjet printing mechanism's avoidance and movement movements are coordinated with the rotation of the shaft mechanism, preventing mechanical interference during printing. This orderly motion control logic ensures precise positioning of the print head in each operation, reducing unnecessary vibration and waiting time, and guaranteeing stable, high-quality inkjet printing results.

[0051] Fifth, it provides a solid structural foundation for automation upgrades: the dual-axis layout is clearly defined, with the working station and loading / unloading station spatially separated, facilitating the integration of automated loading / unloading robots or conveyors. This design allows the equipment to be smoothly upgraded from semi-automatic operation to a fully automated production line, demonstrating excellent scalability and forward-looking design.

[0052] In summary, this application solves the problem of low utilization rate of existing single-axis cylindrical printers through a clever dual-axis alternating design, and realizes parallel processing of printing and loading / unloading, thereby bringing beneficial effects in terms of improving production efficiency, optimizing operation process and ensuring print quality. Attached Figure Description

[0053] Figure 1 This is an overall structural diagram of a dual-axis inkjet printer.

[0054] Figure 2 This is a structural diagram of the hidden part of a dual-axis inkjet printer.

[0055] Figure 3 yes Figure 2 Enlarged view of part A in the middle.

[0056] In the diagram: 1. Frame; 11. Working station; 12. Loading / unloading station; 2. Inkjet printing mechanism; 3. Rotating shaft mechanism; 31. First rotating shaft assembly; 32. Second rotating shaft assembly; 33. Connecting plate; 34. Rotating shaft component; 35. First rotating shaft drive motor; 36. Second rotating shaft drive motor; 311. First rotating shaft; 312. First workpiece; 313. First joint; 321. Second rotating shaft; 322. Second workpiece; 323. Second joint; 351. Third joint; 361. Fourth joint; 21. Inkjet printhead; 22. Motion component; 4. Positioning component; 41. Laser positioning light. Detailed Implementation

[0057] 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.

[0058] To achieve the above objectives, the technical solution of the present invention is as follows:

[0059] See Figures 1-3 As shown, the present invention provides a dual-axis inkjet printing device, comprising:

[0060] The frame 1 has a working station 11 and a loading / unloading station 12 on one side.

[0061] The inkjet printing mechanism 2 is movably mounted on the frame 1;

[0062] The rotating shaft mechanism 3 is rotatably mounted on the frame 1. The rotating shaft mechanism 3 includes a first rotating shaft assembly 31 and a second rotating shaft assembly 32. The first rotating shaft assembly 31 and the second rotating shaft assembly 32 move alternately from the loading / unloading station 12 to the working station 11.

[0063] The first rotating shaft assembly 31 is used to clamp the first blank, and the second rotating shaft assembly 32 is used to clamp the second blank. Preferably, the first blank and the second blank are cylindrical objects.

[0064] The control methods for dual-axis inkjet printers are described below:

[0065] The first blank is clamped on the first rotating shaft assembly 31, and the second blank is clamped on the second rotating shaft assembly 32;

[0066] The inkjet printing mechanism 2 moves on the frame 1 to avoid the rotation of the rotating shaft mechanism 3;

[0067] The rotating shaft mechanism 3 rotates on the frame 1. The first rotating shaft assembly 31 drives the first blank to rotate to the working position 11, and the second rotating shaft assembly 32 rotates to the loading and unloading position 12.

[0068] The inkjet printing mechanism 2 moves above the work station 11 and prints the first blank.

[0069] The inkjet printing mechanism 2 moves on the frame 1 to avoid the rotation of the rotating shaft mechanism 3;

[0070] The rotating shaft mechanism 3 rotates on the frame 1. The second rotating shaft assembly 32 drives the second blank to rotate to the working station 11. The first rotating shaft assembly 31 drives the first blank to rotate to the loading and unloading station 12. The printed first blank is removed from the first rotating shaft assembly 31. Another first blank is clamped on the first rotating shaft assembly 31.

[0071] The inkjet printing mechanism 2 moves above the work station 11 and prints the second blank.

[0072] The inkjet printing mechanism 2 moves on the frame 1 to avoid the rotation of the rotating shaft mechanism 3;

[0073] The rotating shaft mechanism 3 rotates on the frame 1. The first rotating shaft assembly 31 drives the first blank to rotate to the working station 11. The second rotating shaft assembly 32 drives the second blank to rotate to the loading and unloading station 12. The printed second blank is removed from the second rotating shaft assembly 32, and another second blank is clamped on the second rotating shaft assembly 32.

[0074] The dual-axis inkjet printing device provided in this application, by setting up an alternately rotatable first rotating shaft assembly 31 and a second rotating shaft assembly 32, and coordinating with the avoidance and movement actions of the inkjet printing mechanism 2, achieves simultaneous loading and unloading operations during the printing process. Its beneficial effects are mainly reflected in the following aspects:

[0075] First, it significantly improves equipment utilization and production efficiency: By using a dual-axis alternating operation, the originally sequential "printing" and "loading / unloading" processes are transformed into parallel processing. When the first blank on the first rotating shaft assembly 31 is being printed at workstation 11, the operator or robot can simultaneously replace the second blank on the second rotating shaft assembly 32 at the loading / unloading station 12. This overlap in time eliminates the waiting time caused by single-axis equipment stopping for loading / unloading, allowing the inkjet printing mechanism 2 to work continuously, thereby greatly improving the overall utilization rate of the equipment.

[0076] Secondly, it enables continuous automated production and increases output speed: Based on the aforementioned alternating work process, the entire production process can proceed continuously without frequent start-ups and shutdowns. The equipment maintains a stable working rhythm, effectively increasing the number of printed products per unit time, and better meeting the needs of large-scale industrial production.

[0077] Third, the operation process is optimized to reduce the proportion of auxiliary time: the loading and unloading operations are independent of the printing station, providing more operating space and eliminating interference from printhead movement. This not only reduces the difficulty and labor intensity of operation but also allows for more relaxed and accurate loading and unloading actions, reducing the risk of errors caused by hasty operations and further shortening the time for auxiliary operations.

[0078] Fourth, it improves the operational stability and print quality of the equipment: During operation, the avoidance and movement of the inkjet printing mechanism 2 are coordinated with the rotation of the shaft mechanism 3, avoiding mechanical interference during printing. This orderly motion control logic ensures precise positioning of the print head in each operation, reducing unnecessary vibration and waiting time, and guaranteeing stable, high-quality inkjet printing results.

[0079] Fifth, it provides a solid structural foundation for automation upgrades: the dual-axis layout is clearly defined, with the working station 11 and the loading / unloading station 12 spatially separated, facilitating the integration of automated loading / unloading robots or conveyors. This design allows the equipment to be smoothly upgraded from semi-automatic operation to a fully automated production line, demonstrating excellent scalability and forward-looking design.

[0080] In summary, this application solves the problem of low utilization rate of existing single-axis cylindrical printers through a clever dual-axis alternating design, and realizes parallel processing of printing and loading / unloading, thereby bringing beneficial effects in terms of improving production efficiency, optimizing operation process and ensuring print quality.

[0081] Furthermore, the rotating shaft mechanism 3 also includes a connecting plate 33 and a rotating shaft component 34. One end of the connecting plate 33 is movably connected to the first rotating shaft assembly 31, and the other end of the connecting plate 33 is movably connected to the second rotating shaft assembly 32.

[0082] A rotating shaft component 34 is mounted on the frame 1 and is connected to a connecting plate 33. The rotating shaft component 34 drives the connecting plate 33 to rotate, which in turn drives the first rotating shaft assembly 31 and the second rotating shaft assembly 32 to rotate. The rotating shaft component 34 can be a drive motor.

[0083] Furthermore, the rotating shaft mechanism 3 also includes a first rotating shaft drive motor 35 and a second rotating shaft drive motor 36. The first rotating shaft drive motor 35 is movably mounted on the frame 1 along the x-axis direction, and the second rotating shaft drive motor 36 is movably mounted on the frame 1 along the x-axis direction. The first rotating shaft drive motor 35 and the second rotating shaft drive motor 36 are located on both sides of the rotating shaft rotating component 34, respectively.

[0084] Furthermore, the first rotating shaft assembly 31 includes a first rotating shaft 311 and a first workpiece 312. One end of the first rotating shaft 311 extends through the connecting plate 33 and has a first joint portion 313. The other end of the first rotating shaft 311 is connected to the first workpiece 312, which is used to clamp the first blank.

[0085] The second rotating shaft assembly 32 includes a second rotating shaft 321 and a second workpiece 322. One end of the second rotating shaft 321 extends through the connecting plate 33 and has a second joint 323. The other end of the second rotating shaft 321 is connected to the second workpiece 322, which is used to clamp the second blank.

[0086] Furthermore, a third connecting portion 351 is provided on the rotating shaft of the first rotating shaft drive motor 35, and a fourth connecting portion 361 is provided on the rotating shaft of the second rotating shaft drive motor 36; the third connecting portion 351 is used to connect with the first connecting portion 313, and the fourth connecting portion 361 is used to connect with the second connecting portion 323. Preferably, the third connecting portion 351 and the first connecting portion 313 can be magnetically connected, and the fourth connecting portion 361 and the second connecting portion 323 can be magnetically connected.

[0087] In a working scenario, the first rotating shaft drive motor 35 moves along the x-axis, causing the first joint 313 to abut against the third joint 351, and the first joint 313 and the third joint 351 are magnetically connected. The rotating shaft of the first rotating shaft drive motor 35 drives the first rotating shaft 311 to rotate, which in turn drives the first workpiece 312 to rotate. The first workpiece 312 is coated with a first blank, and the first workpiece 312 drives the first blank to rotate.

[0088] The second rotating shaft drive motor 36 moves along the x-axis, causing the second joint 323 to abut against the fourth joint 361. The second joint 323 and the fourth joint 361 are magnetically connected. The rotating shaft of the second rotating shaft drive motor 36 drives the second rotating shaft 321 to rotate, which in turn drives the second workpiece 322 to rotate. The second workpiece 322 is coated with a second blank, which is rotated by the second workpiece 322.

[0089] When the first rotating shaft is located at the working station 11, the inkjet printing mechanism 2 moves above the working station 11 and prints on the outer surface of the first blank. When the second rotating shaft is located at the working station 11, the inkjet printing mechanism 2 moves above the working station 11 and prints on the outer surface of the second blank.

[0090] In another working scenario, the first rotating shaft drive motor 35 moves along the x-axis, causing the third joint 351 to move away from the first joint 313; the second rotating shaft drive motor 36 moves along the x-axis, causing the fourth joint 361 to move away from the second joint 323. The rotating shaft rotator 34 drives the connecting plate 33 to rotate, which in turn drives the first rotating shaft 311 and the second rotating shaft 321 to rotate, causing the first workpiece 312 and the second workpiece 322 to exchange their positions.

[0091] Furthermore, the inkjet printing mechanism 2 includes at least one inkjet printhead 21 and a motion assembly 22. The motion assembly 22 is movably mounted on the frame 1. The inkjet printhead 21 is connected to the motion assembly 22 so that the motion assembly 22 drives the inkjet printhead 21 to move along the x-axis, y-axis, and z-axis directions. Preferably, the motion assembly 22 can be a drive component that assembles x-axis, y-axis, and z-axis motion components together, wherein the x-axis, y-axis, and z-axis motion components can be belt drives and slide rail assemblies.

[0092] Furthermore, the dual-axis inkjet printing equipment also includes a positioning component 4, which is movably positioned above the loading / unloading station 12 to meet the positioning requirements for clamping the first or second blank for the first workpiece 312 or the second workpiece 322 of different lengths.

[0093] Furthermore, the positioning component 4 includes a laser positioning lamp 41. By adjusting the first workpiece 312 or the second workpiece 322 located on the loading / unloading station 12, the laser emitted by the laser positioning lamp 41 is ensured to be projected onto the edge of the first blank or the edge of the second blank located on the loading / unloading station 12. This ensures that the first workpiece 312 accurately clamps the first blank, and the second workpiece 322 accurately clamps the second blank, ensuring that the rotation center of the workpiece coincides with the rotation axis, thereby guaranteeing printing quality and preventing operational risks caused by clamping misalignment.

[0094] Furthermore, marking points are respectively set on the first blank and the second blank; by adjusting the first workpiece 312 or the second workpiece 322 located on the loading / unloading station 12, it is ensured that the laser emitted by the laser positioning lamp 41 is projected onto the marking points on the first blank or the second blank located on the loading / unloading station 12. This ensures that the first workpiece 312 accurately clamps the first blank, and the second workpiece 322 accurately clamps the second blank, ensuring that the rotation center of the workpiece coincides with the rotation axis, thereby guaranteeing printing quality and preventing operational risks caused by clamping misalignment.

[0095] Furthermore, the dual-axis inkjet printer also includes a hardware interlock circuit and a switching button, which is electrically connected to the rotating shaft mechanism 3 through the hardware interlock circuit;

[0096] When the inkjet printing mechanism 2 is working, the hardware interlock circuit is disconnected. Pressing the switch button will prevent the rotating shaft mechanism 3 from rotating. The hardware interlock circuit is a conventional hardware locking circuit, which is designed to prevent the hardware from operating under specific conditions.

[0097] When the inkjet printing mechanism 2 stops working, the hardware interlock circuit is activated. Pressing the switching button causes the rotating shaft mechanism 3 to rotate, causing the first rotating shaft assembly 31 and the second rotating shaft assembly 32 to exchange positions. This ensures that during printing, no software command or accidental touch can initiate position switching, fundamentally eliminating safety accidents caused by motion interference due to misoperation or software malfunction.

[0098] Furthermore, safety light curtains are installed on the outside of the working station 11 and the loading / unloading station 12. The safety light curtains serve as auxiliary external protection. These safety light curtains are conventional photoelectric safety protection devices.

[0099] 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 dual-axis inkjet printing device, characterized in that, include: The machine frame has a working station and a loading / unloading station on one side; The inkjet printing mechanism is movably mounted on the frame. The rotating shaft mechanism is rotatably mounted on the frame. The rotating shaft mechanism includes a first rotating shaft assembly and a second rotating shaft assembly, which alternately move from the loading / unloading station to the working station. The first rotating shaft assembly is used to clamp the first blank, and the second rotating shaft assembly is used to clamp the second blank.

2. The dual-axis inkjet printing device as described in claim 1, characterized in that, The rotating shaft mechanism also includes a connecting plate and a rotating shaft component. One end of the connecting plate is movably connected to the first rotating shaft assembly, and the other end of the connecting plate is movably connected to the second rotating shaft assembly. The rotating shaft is mounted on the frame and connected to the connecting plate. The rotating shaft drives the connecting plate to rotate, which in turn drives the first rotating shaft assembly and the second rotating shaft assembly to rotate.

3. The dual-axis inkjet printing device as described in claim 2, characterized in that, The rotating shaft mechanism also includes a first rotating shaft drive motor and a second rotating shaft drive motor. The first rotating shaft drive motor is movably mounted on the frame along the x-axis direction, and the second rotating shaft drive motor is movably mounted on the frame along the x-axis direction. The first rotating shaft drive motor and the second rotating shaft drive motor are located on both sides of the rotating shaft component, respectively.

4. The dual-axis inkjet printing device as described in claim 3, characterized in that, The first rotating shaft assembly includes a first rotating shaft and a first workpiece. One end of the first rotating shaft extends through a connecting plate and has a first joint portion. The other end of the first rotating shaft is connected to the first workpiece, which is used to clamp the first blank. The second rotating shaft assembly includes a second rotating shaft and a second workpiece. One end of the second rotating shaft extends through a connecting plate and has a second joint. The other end of the second rotating shaft is connected to the second workpiece, which is used to clamp the second blank.

5. The dual-axis inkjet printing device as described in claim 4, characterized in that, A third joint is provided on the rotating shaft of the first rotating shaft drive motor, and a fourth joint is provided on the rotating shaft of the second rotating shaft drive motor; the third joint is used to connect with the first joint, and the fourth joint is used to connect with the second joint.

6. The dual-axis inkjet printing device as described in claim 1, characterized in that, The inkjet printing mechanism includes at least one inkjet printhead and a motion component. The motion component is movably mounted on the frame. The inkjet printhead is connected to the motion component so that the inkjet printhead can be driven to move along the x-axis, y-axis and z-axis directions by the motion component.

7. The dual-axis inkjet printing device as described in claim 1, characterized in that, The dual-axis inkjet printing equipment also includes a positioning component, which is movably positioned above the loading and unloading station.

8. The dual-axis inkjet printing device as described in claim 7, characterized in that, The positioning component includes a laser positioning light for projecting a laser onto the edge of a first blank or a second blank located at the loading / unloading station.

9. The dual-axis inkjet printing device as described in claim 7, characterized in that, Marking points are respectively provided on the first blank and the second blank; the positioning component includes a laser positioning light for emitting lasers to project lasers onto the marking points on the first blank or the second blank located at the loading and unloading station.

10. A control method for a dual-axis inkjet printing device, applied to the dual-axis inkjet printing device according to any one of claims 1-9, characterized in that, The method includes: The first blank is clamped on the first rotating shaft assembly, and the second blank is clamped on the second rotating shaft assembly; The inkjet printing mechanism moves on the frame to avoid the rotation of the spindle mechanism; The rotating shaft mechanism rotates on the frame. The first rotating shaft assembly drives the first blank to rotate to the working position, and the second rotating shaft assembly rotates to the loading and unloading position. The inkjet printing mechanism moves above the workstation and prints the first blank. The inkjet printing mechanism moves on the frame to avoid the rotation of the spindle mechanism; The rotating shaft mechanism rotates on the frame. The second rotating shaft assembly drives the second blank to rotate to the working position. The first rotating shaft assembly drives the first blank to rotate to the loading and unloading position. The printed first blank is removed from the first rotating shaft assembly. Another first blank is clamped on the first rotating shaft assembly. The inkjet printing mechanism moves above the workstation and prints the second blank. The inkjet printing mechanism moves on the frame to avoid the rotation of the spindle mechanism; The rotating shaft mechanism rotates on the frame. The first rotating shaft assembly drives the first blank to rotate to the working position. The second rotating shaft assembly drives the second blank to rotate to the loading and unloading position. The printed second blank is removed from the second rotating shaft assembly, and another second blank is clamped on the second rotating shaft assembly.

Images