Automatic production line for printing on round tubes

Abstract

The utility model relates to the technical field of round tube printing, especially a kind of round tube printing automatic production line, it includes feeding trolley, conveying line, sintering furnace, first output mechanism, first round tube automatic printing equipment and multiple second round tube automatic printing equipment;The top of feeding trolley is equipped with receiving conveying mechanism;First round tube automatic printing equipment or / and second round tube automatic printing equipment include tray conveying mechanism, round tube printing machine, feeding and discharging manipulator and upper CCD visual positioning mechanism;The middle part of conveying line is equipped with the lifting receiving mechanism for the output end of tray conveying mechanism, receiving conveying mechanism can be connected with the input end of tray conveying mechanism or the output end of first output mechanism;The frame of first output mechanism is equipped with multiple tray state information inductor, and multiple tray state information inductor are electrically connected with feeding trolley.The multiple printing and multiple sintering of the round tube are completed automatically, and the efficiency and quality of printing production of the round tube are improved.

Description

Technical Field

[0001] This utility model relates to the field of cylindrical tube printing technology, and in particular to an automated production line for cylindrical tube printing. Background Technology

[0002] In the processing and production of round tubes, screen printing is sometimes required on the outer surface of the tubes. Some round tubes require multiple printing cycles, each requiring heat curing. Existing patents, such as Chinese patent application number 202220280811.1, disclose an automatic screen printing machine for round tubes, including a machine base, a conveyor frame fixedly mounted on the top side wall, a chain conveyor device mounted on the side wall of the conveyor frame, and a printing device fixedly mounted on the top side wall of the machine base. A first electric cylinder, a second electric cylinder, a third electric cylinder, and a fourth electric cylinder are sequentially fixedly mounted on the top side wall of the machine base along the conveying direction of the chain conveyor device. A rotary cylinder is fixedly mounted on the top of the first electric cylinder. Both the rotary cylinder and the second electric cylinder have a top seat with a notch on the top fixedly mounted on their respective tops. The third electric cylinder... A mounting bracket is fixedly installed on the top sidewall of the first and fourth electric cylinders. Two telescopic cylinders are symmetrically fixedly installed on the top sidewalls of each of the two mounting brackets. A push rod is provided on the opposite sidewall of each of the two opposing telescopic cylinders. A second servo motor for driving the opposing push rods to rotate is fixedly installed on the sidewall of each of the four telescopic cylinders. The top seat on the top sidewall of the third electric cylinder is located directly below the printing device. A mounting bracket c is fixedly installed on the top sidewall of the machine base. A UV dryer is fixedly installed on the sidewall of the mounting bracket c. The top seat on the top sidewall of the fourth electric cylinder is located directly below the UV dryer. This patent document can complete one printing and one heat curing of a round tube, but it cannot automatically perform multiple printing and multiple heat curing processes on round tubes. For round tubes requiring multiple printing and multiple heat curing processes, the printing production efficiency is low. Therefore, the shortcomings are very obvious, and a solution is urgently needed. Utility Model Content

[0003] In order to solve the above-mentioned technical problems, the purpose of this utility model is to provide an automatic production line for round tube printing.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: An automated production line for cylindrical tube printing includes a feeding cart, a conveyor line, a sintering furnace connected to the output end of the conveyor line, a first output mechanism connected to the output end of the sintering furnace, and a first automated cylindrical tube printing device and multiple second automated cylindrical tube printing devices sequentially arranged along the conveying direction of the conveyor line on the side of the conveyor line. A receiving and conveying mechanism is provided on the top of the feeding cart. The first and / or second automated cylindrical tube printing devices include a tray conveying mechanism located on one side of the conveyor line, a cylindrical tube printing machine located on one side of the tray conveying mechanism, a loading / unloading robot located between the tray conveying mechanism and the cylindrical tube printing machine, and an upper CCD vision positioning mechanism mounted on the frame of the tray conveying mechanism, the upper CCD vision positioning mechanism being electrically connected to the loading / unloading robot. A lifting receiving mechanism is provided in the middle of the conveyor line for connecting to the output end of the tray conveying mechanism, the receiving and conveying mechanism being able to connect to the input end of the tray conveying mechanism or the output end of the first output mechanism. Multiple tray status information sensors are mounted on the frame of the first output mechanism, and all multiple tray status information sensors are electrically connected to the feeding cart.

[0005] Furthermore, the automatic production line for round tube printing also includes a buffer conveying mechanism and a second output mechanism, and the receiving conveying mechanism can be connected to the input end of the buffer conveying mechanism or the second output mechanism.

[0006] Furthermore, the number of feeding cars is at least two, at least one feeding car is movably disposed between the input end of the first output mechanism and the input end of the buffer conveying mechanism or the input end of the second output mechanism, and at least one feeding car is movably disposed between the output end of the buffer conveying mechanism and the input end of the tray conveying mechanism.

[0007] Furthermore, the loading and unloading robot includes a robotic arm located between the material tray conveying mechanism and the cylindrical tube printing machine, a fixed base mounted on the execution end of the robotic arm, a rotation drive mechanism mounted on the fixed base, a rotating seat mounted on the rotating end of the rotation drive mechanism, two sets of magnetic suction components mounted side by side in the rotating seat, a pick-and-place plate mounted on one end of the rotating seat and corresponding to the magnetic suction components, and a suction cup mounted on the other end of the rotating seat. The pick-and-place plate encapsulates the magnetic suction components in the rotating seat, and both sets of magnetic suction components can magnetically attract the cylindrical tube to the pick-and-place plate. The rotation drive mechanism is used to drive the rotating seat to rotate.

[0008] Furthermore, the magnetic attraction assembly includes a telescopic driver mounted on the rotating base, a mounting plate mounted on the telescopic end of the telescopic driver, and a magnet mounted on the mounting plate. The telescopic driver is used to drive the mounting plate to move closer to or away from the pick-up and put-away plate. When the mounting plate of one magnetic attraction assembly moves closer to the pick-up and put-away plate, the mounting plate of the other magnetic attraction assembly moves away from the pick-up and put-away plate.

[0009] Furthermore, the first automatic round tube printing equipment and / or the second automatic round tube printing equipment also includes a first lower CCD vision positioning mechanism located between the material tray conveying mechanism and the round tube printing machine, and the first lower CCD vision positioning mechanism is connected to the loading and unloading robot arm.

[0010] Furthermore, the rotary tube printing machine includes a machine base, a moving drive mechanism mounted on the machine base, a support frame mounted on the top surface of the machine base away from the end of the loading / unloading robot, a screen printing device mounted on the support frame, a lifting drive mechanism mounted on the moving end of the moving drive mechanism, a lifting seat mounted on the lifting end of the lifting drive mechanism, a rotary tube printing fixture mounted on the lifting seat, and a lifting screen wiping device mounted on the lifting seat and located on one side of the rotary tube printing fixture. The rotary tube printing fixture and the lifting screen wiping device are arranged sequentially along the moving drive direction of the moving drive mechanism. The lifting screen wiping device is used to wipe the screen of the screen printing device.

[0011] Furthermore, the lifting-type cleaning device includes a base mounted on the lifting seat, a cleaning seat that is lifted and mounted on the base, a lifting drive unit mounted on the base and used to drive the cleaning seat to rise and fall, a mounting base mounted on the cleaning seat, a cleaning roller rotatably connected to the top of the mounting base, a guide roller rotatably connected to the bottom of the mounting base and arranged parallel to the cleaning roller, a take-up shaft rotatably connected to the cleaning seat, a take-up drive mechanism mounted on the cleaning seat and used to drive the take-up shaft to rotate, an unwinding shaft rotatably connected to the cleaning seat and arranged parallel to the take-up shaft, and a damper mounted on the cleaning seat. The damping shaft of the damper is coaxially connected to the unwinding shaft. The take-up shaft and the unwinding shaft are located on the same side of the mounting base, and the upper side of the cleaning roller extends beyond the top surface of the mounting base.

[0012] Furthermore, the rotary tube printing machine also includes a second lower CCD vision positioning mechanism installed on the lifting base. The rotary tube printing fixture, the lifting screen wiping device, and the second lower CCD vision positioning mechanism are arranged sequentially along the moving drive direction of the moving drive mechanism.

[0013] Furthermore, the conveyor line is rotatably equipped with two parallel and oppositely arranged conveyor belts. The lifting and receiving mechanism includes a receiving seat that is lifted and positioned between the two conveyor belts, multiple rotating rollers that are rotatably connected to the receiving seat, a rotation drive module installed on the bottom surface of the receiving seat for driving the multiple rotating rollers to rotate synchronously, and a lifting drive module installed on the bottom surface of the conveyor line frame for driving the receiving seat to lift. The central axes of the multiple rotating rollers are on the same horizontal plane, the multiple rotating rollers are arranged in parallel and form a receiving surface, a baffle is provided on one side of the conveyor line frame, the baffle is located on one side of the receiving surface, and the output end of the material tray conveying mechanism is located on the other side of the conveyor line frame.

[0014] The beneficial effects of this utility model are as follows: In practical applications, a receiving and conveying mechanism on a manual or feeding cart transports a tray loaded with multiple vertical cylindrical tubes to the tray conveying mechanism of the first automatic cylindrical tube printing equipment. The tray conveying mechanism transports the tray to the middle of the tray conveying mechanism and is correspondingly set with the loading / unloading robot and the upper CCD vision positioning mechanism. The upper CCD vision positioning mechanism performs visual positioning on the cylindrical tubes on the tray and feeds back the visual positioning results to the loading / unloading robot. The loading / unloading robot accurately picks up the cylindrical tubes on the tray according to the visual positioning results and places the cylindrical tubes horizontally on the cylindrical tube printing machine. The cylindrical tube printing machine performs screen printing on the outer circumference of the cylindrical tubes. After the cylindrical tube printing machine completes the printing of the cylindrical tubes, the loading / unloading robot picks up the printed cylindrical tubes. The printed tubes are then placed back into the empty position of the tray. The loading / unloading robot then picks up the tubes to be printed from the tray and places them onto the tube printing machine for printing. This process is repeated until all tubes on the tray have been printed. The loading / unloading robot then picks up a marker block and places it in the first position of the tray, indicating that the tubes on that tray have completed their first printing. Next, the tray conveying mechanism transports the tray containing the tubes that have completed their first printing to the lifting and receiving mechanism in the conveyor line. The lifting and receiving mechanism then lowers the tray onto the conveyor line, which transports it to the sintering furnace. The sintering furnace sinters the tubes that have completed their first printing. After sintering, the sintering furnace transports the tray containing the tubes that have completed their first printing and first sintering to the next... On the first output mechanism, the material tray is conveyed. When the material tray moves directly below multiple material tray status information sensors, the sensors identify the marker block on the material tray to determine its position and thus the number of printing and sintering cycles completed for the tubes on that tray. When the sensor detects the marker block in the first position, it indicates that the tubes on that tray have completed one printing and one sintering cycle. When the receiving and conveying mechanism on the feeding trolley connects to the output end of the first output mechanism and receives the material tray containing the tubes that have completed one printing and one sintering cycle, the feeding trolley will convey the material tray to the second automatic tube printing device where the tubes need to be printed a second time. At the preparation point (for the first and second automatic round tube printing equipment), the receiving and conveying mechanism of the feeding cart connects with the tray conveying mechanism of the second automatic round tube printing equipment. The receiving and conveying mechanism transports the tray to the tray conveying mechanism. The first and second automatic round tube printing equipment performs a second printing on the round tubes on the tray. After all the round tubes on the tray have completed the second printing, the tray conveying mechanism transports the tray to the lifting receiving mechanism in the conveyor line. The lifting receiving mechanism places the tray on the conveyor line, and the conveyor line transports the tray into the sintering furnace. The sintering furnace performs a second sintering on the round tubes on the tray. After the second sintering is completed, the sintering furnace outputs the tray to the first output mechanism. Then, multiple tray status information sensors identify the marking blocks on the tray.When the tray status information sensor detects that the marker block is in the second position of the tray, it indicates that the round tubes on the tray have completed the second printing and second sintering. When the receiving and conveying mechanism on the feeding trolley connects to the output end of the first output mechanism and receives the tray carrying the round tubes that have completed the second printing and second sintering, the feeding trolley will transport the tray to the second automatic round tube printing equipment (the second automatic round tube printing equipment) that needs to perform the third printing on the round tubes. The above operation steps are repeated until all the second automatic round tube printing equipment takes turns printing on the round tubes. The round tube is sintered after each printing to achieve multiple printing and multiple sintering of the round tubes (e.g., four printings and four sinterings). After the round tubes on the tray have completed the required number of printings and sinterings, the feeding trolley transports the tray loaded with the finished round tubes to the designated position. This utility model automates the multiple printing and multiple sintering of round tubes, improving the efficiency and quality of round tube printing production. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0016] Figure 2 This is a three-dimensional structural diagram of the first or second automatic round tube printing device of this utility model.

[0017] Figure 3 This is a three-dimensional structural diagram of the material tray conveying mechanism, the loading and unloading robot, the upper CCD vision positioning mechanism, and the first lower CCD vision positioning mechanism of this utility model.

[0018] Figure 4 This is a three-dimensional structural diagram of the loading and unloading robot of this utility model.

[0019] Figure 5 This is a three-dimensional structural diagram of the loading and unloading robot of this utility model, showing the robot arm hidden behind it.

[0020] Figure 6 This is a three-dimensional structural diagram of the lifting-type net wiping device and the second lower CCD visual positioning mechanism of this utility model.

[0021] Figure 7 This is a three-dimensional structural diagram of the lifting net-wiping device and the second lower CCD visual positioning mechanism of this utility model from another perspective.

[0022] Figure 8 This is a three-dimensional structural diagram of the circular tube printing machine of this utility model.

[0023] Figure 9 This is a three-dimensional structural diagram of the circular tube printing fixture of this utility model.

[0024] Figure 10 This is a partial structural diagram of the lifting and receiving mechanism and the conveyor line of this utility model.

[0025] Figure 11 This is a three-dimensional structural diagram of the lifting and receiving mechanism of this utility model.

[0026] Figure 12 This is a partial structural schematic diagram of the first output mechanism of this utility model.

[0027] Explanation of reference numerals in the attached figures: 1. Feeding trolley; 2. Conveyor line; 3. Sintering furnace; 4. First output mechanism; 5. First automatic circular tube printing equipment; 6. Second automatic circular tube printing equipment; 7. Receiving conveying mechanism; 8. Material tray conveying mechanism; 9. Circular tube printing machine; 10. Loading and unloading robot; 11. Upper CCD vision positioning mechanism; 12. Lifting receiving mechanism; 13. Material tray status information sensor; 14. Buffer conveying mechanism; 15. Second output mechanism; 16. Robotic arm; 17. Fixed base; 18. Rotation drive mechanism; 19. Rotating base; 20. Magnetic suction assembly; 21. Pick-up and drop plate; 22. Suction cup; 23. Telescopic driver; 24. Mounting plate; 25. Magnet; 26. First lower CCD vision positioning mechanism; 27. Machine base; 28. Moving drive mechanism; 29. 30. Support frame; 31. Screen printing device; 32. Lifting drive mechanism; 33. Lifting seat; 34. Round tube printing fixture; 35. Lifting screen cleaning device; 36. Base; 37. Cleaning seat; 38. Lifting drive unit; 39. Mounting seat; 40. Cleaning roller; 41. Guide roller; 42. Take-up shaft; 43. Take-up drive mechanism; 44. Unwind shaft; 45. Damper; 46. Second lower CCD vision positioning mechanism; 47. Conveyor belt; 48. Receiving seat; 49. Rotary roller; 50. Rotation drive module; 51. Lifting drive module; 52. Material tray; 53. Identifier block; 54. Status placement position; 55. Baffle; 56. Fixed rotating chuck module; 57. X-axis drive mechanism; 58. Movable rotating chuck module. Detailed Implementation To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to embodiments and accompanying drawings. The content mentioned in the embodiments is not intended to limit the present invention.

[0028] like Figures 1 to 12As shown, this utility model provides an automatic production line for cylindrical tube printing, which includes a feeding cart 1, a conveyor line 2, a sintering furnace 3 connected to the output end of the conveyor line 2, a first output mechanism 4 connected to the output end of the sintering furnace 3, and a first automatic cylindrical tube printing device 5 and multiple second automatic cylindrical tube printing devices 6 sequentially arranged on the side of the conveyor line 2 along the conveying direction of the conveyor line 2; a receiving conveying mechanism 7 is provided on the top of the feeding cart 1; the first automatic cylindrical tube printing device 5 and / or the second automatic cylindrical tube printing device 6 include a tray conveying mechanism 8 arranged on one side of the conveyor line 2, a cylindrical tube printing machine 9 arranged on one side of the tray conveying mechanism 8, a loading and unloading robot 10 located between the tray conveying mechanism 8 and the cylindrical tube printing machine 9, and an upper CCD vision positioning mechanism 11 mounted on the frame of the tray conveying mechanism 8. The CCD vision positioning mechanism 11 is electrically connected to the loading and unloading robot 10; a lifting receiving mechanism 12 is provided in the middle of the conveyor line 2 for connecting with the output end of the tray conveying mechanism 8, and the receiving conveying mechanism 7 can connect with the input end of the tray conveying mechanism 8 or the output end of the first output mechanism 4; multiple tray status information sensors 13 are installed on the frame of the first output mechanism 4, and all multiple tray status information sensors 13 are electrically connected to the feeding car 1; specifically, the structure of the first round tube automatic printing equipment 5 is the same as the structure of the second round tube automatic printing equipment 6, and there are three second round tube automatic printing equipment 6. The first round tube automatic printing equipment 5 and the three second round tube automatic printing equipment 6 make up a total of four round tube automatic printing equipment, and the four round tube automatic printing equipment are distributed on both sides of the conveyor line 2 in a staggered manner.

[0029] This embodiment uses the example of a round tube requiring four printing and four sintering processes for illustration. It should be noted that multiple status placement positions 53 are arranged in a straight line on the material tray 51, each corresponding to a different material tray status information sensor 13. One of the status placement positions 53 has an identifier block 52. In practical applications, the receiving and conveying mechanism 7 on the manual or feeding cart 1 transports the material tray 51 containing multiple upright round tubes to the material tray conveying mechanism 8 of the first automatic round tube printing equipment 5. The material tray conveying mechanism 8 transports the material tray 51 to its center, corresponding to the loading / unloading robot 10 and the upper CCD vision positioning mechanism 11. The upper CCD vision positioning mechanism 11 performs visual positioning on the round tubes on the material tray 51 and feeds the results back to the loading / unloading robot 10. The loading / unloading robot 10 accurately picks up the round tubes from the material tray 51 based on the visual positioning results and places them horizontally on the round tube printing machine 9. The round tube printing machine 9 then prints the outer circumference of the round tubes. The screen printing process is performed on the side. After the rotary tube printing machine 9 finishes printing on the rotary tubes, the loading / unloading robot 10 picks up the printed rotary tubes and places them back into the empty position of the material tray 51. The loading / unloading robot 10 then picks up the rotary tubes to be printed from the material tray 51 and places them onto the rotary tube printing machine 9 for printing. This process is repeated until all the rotary tubes on the material tray 51 have been printed. The loading / unloading robot 10 then picks up the marker block 52 and places it on the first position 53 of the material tray 51, indicating that the rotary tubes on the material tray 51 have completed the first printing. Then, the material tray conveying mechanism 8 transports the material tray 51 containing the rotary tubes that have completed the first printing to the lifting and receiving mechanism 12 in the conveyor line 2. The rear lifting and receiving mechanism 12 lowers the tray 51 onto the conveyor line 2, which then transports the tray 51 into the sintering furnace 3. The sintering furnace 3 sintersects (thermo-cures) the round tubes after the first printing. After sintering, the sintering furnace 3 transports the tray 51, which carries the round tubes that have completed the first printing and first sintering, to the first output mechanism 4. The first output mechanism 4 transports the tray 51. When the tray 51 moves directly below multiple tray status information sensors 13, the sensors identify the marker block 52 on the tray 51 to determine the position 53 of the marker block 52 on the tray 51, thus determining the position of the round tube on the tray 51. After the tube has undergone several printing and sintering processes, when the tray status information sensor 13 detects that the marker block 52 is located in the first status placement position 53 of the tray 51, it proves that the round tube on the tray 51 has completed one printing and one sintering. When the receiving and conveying mechanism 7 on the feeding carriage 1 connects with the output end of the first output mechanism 4 and receives the tray 51 carrying the round tube that has completed one printing and one sintering, the feeding carriage 1 will transport the tray 51 to the second round tube automatic printing equipment 6 (the first second round tube automatic printing equipment 6) where the round tube needs to be printed a second time. The receiving and conveying mechanism 7 of the feeding carriage 1 connects with the tray conveying mechanism 8 of the second round tube automatic printing equipment 6.The receiving and conveying mechanism 7 transports the material tray 51 to the material tray conveying mechanism 8. The first and second round tube automatic printing equipment 6 performs a second printing on the round tubes on the material tray 51. After all the round tubes on the material tray 51 have completed the second printing, the material tray conveying mechanism 8 transports the material tray 51 to the lifting receiving mechanism 12 in the conveyor line 2. The lifting receiving mechanism 12 places the material tray 51 on the conveyor line 2, and the conveyor line 2 transports the material tray 51 into the sintering furnace 3. The sintering furnace 3 performs a second sintering on the round tubes on the material tray 51. After the second sintering is completed, the sintering furnace 3 outputs the material tray 51 to the first output mechanism 4. Then, multiple material tray status information sensors 13 identify the identification block 52 on the material tray 51. When the material tray status information sensor 13 detects that the identification block 52 is located in the second status placement position of the material tray 51... At time 53, it is confirmed that the round tubes on the material tray 51 have completed the second printing and second sintering. When the receiving and conveying mechanism 7 on the feeding carriage 1 connects with the output end of the first output mechanism 4 and receives the material tray 51 carrying the round tubes that have completed the second printing and second sintering, the feeding carriage 1 will transport the material tray 51 to the second automatic round tube printing device 6 (the second automatic round tube printing device 6) that needs to perform the third printing on the round tubes. The above operation steps are repeated until all the second automatic round tube printing devices 6 take turns printing on the round tubes. The round tube is sintered once after each printing to achieve multiple printing and multiple sintering of the round tubes (for example, completing four printings and four sinterings). After the round tubes on the material tray 51 have completed the required number of printings and sinterings, the feeding carriage 1 will transport the material tray 51 loaded with the finished round tubes to the designated position. This utility model automates the multiple printing and multiple sintering of round tubes, improving the efficiency and quality of round tube printing production.

[0030] In this embodiment, the automatic production line for round tube printing also includes a buffer conveying mechanism 14 and a second output mechanism 15. The receiving conveying mechanism 7 can be connected to the input end of the buffer conveying mechanism 14 or the second output mechanism 15. Specifically, the number of feeding carts 1 is at least two, with at least one feeding cart 1 movably disposed between the first output mechanism 4 and the input end of the buffer conveying mechanism 14 or the input end of the second output mechanism 15, and at least one feeding cart 1 movably disposed between the output end of the buffer conveying mechanism 14 and the input end of the tray conveying mechanism 8. Finished round tubes refer to round tubes that have completed a preset number of printing and sintering processes, while semi-finished round tubes refer to round tubes that have not yet completed the preset number of printing and sintering processes.

[0031] In practical applications, based on the status information of the material tray 51 detected by multiple material tray status information sensors 13, one feeding carriage 1 transports the material tray 51 to the second output mechanism 15 or the buffer conveying mechanism 14. The second output mechanism 15 outputs the material tray 51 carrying the finished round tube, and the buffer conveying mechanism 14 buffers and transports the material tray 51 carrying the semi-finished round tube. Another feeding carriage 1 transports the material tray 51 output by the buffer conveying mechanism 14 to the corresponding second round tube automatic printing equipment 6 based on the status information of the material tray 51 detected by multiple material tray status information sensors 13, so that the round tubes on the material tray 51 can complete the corresponding printing process.

[0032] Specifically, the feeding vehicle 1 can be an AGV (Automated Guided Vehicle).

[0033] In this embodiment, the loading and unloading robot 10 includes a robotic arm 16 located between the material tray conveying mechanism 8 and the cylindrical tube printing machine 9, a fixed base 17 mounted on the execution end of the robotic arm 16, a rotation drive mechanism 18 mounted on the fixed base 17, a rotating seat 19 mounted on the rotating end of the rotation drive mechanism 18, two sets of magnetic suction components 20 mounted side by side in the rotating seat 19, a pick-and-place plate 21 mounted on one end of the rotating seat 19 and corresponding to the magnetic suction components 20, and a suction cup 22 mounted on one side of the other end of the rotating seat 19. The pick-and-place plate 21 encapsulates the magnetic suction components 20 in the rotating seat 19. Both sets of magnetic suction components 20 can magnetically attract the cylindrical tube to the pick-and-place plate 21. The rotation drive mechanism 18 is used to drive the rotating seat 19 to rotate.

[0034] In practical applications, the tray 51 holds upright cylindrical tubes to be printed. The robotic arm 16 drives the fixed base 17, along with the rotation drive mechanism 18, rotating base 19, two sets of magnetic suction components 20, and pick-and-place plate 21, to move to the top of the cylindrical tube. The top surface of the cylindrical tube to be printed corresponds to one set of magnetic suction components 20. The set of magnetic suction components 20 magnetically attracts the cylindrical tube to be printed onto the pick-and-place plate 21. Then, the robotic arm 16 moves the cylindrical tube to be printed away from the tray 51 and transfers it to the cylindrical tube printing fixture 33 of the cylindrical tube printing machine 9. Simultaneously, the rotary drive mechanism 18 drives the rotating seat 19, along with two sets of magnetic suction components 20, the pick-and-place plate 21, and the magnetically attached cylindrical tube to be printed, to rotate from a vertical state to a horizontal state. Under the drive of the robotic arm 16, the other set of magnetic suction components 20 magnetically attaches the printed cylindrical tube, carried by the cylindrical tube printing fixture 33 of the cylindrical tube printing machine 9, to the pick-and-place plate 21. Then, the cylindrical tube to be printed is placed horizontally on the cylindrical tube printing fixture 33 of the cylindrical tube printing machine 9 to realize the picking up of the printed cylindrical tube and the unloading of the cylindrical tube to be printed. Then the mechanical... The arm 16 drives the fixed base 17, along with the rotation drive mechanism 18, the rotating base 19, two sets of magnetic suction components 20, the pick-and-place plate 21, and the empty position of the printed round tube moving tray 51. Simultaneously, the rotation drive mechanism 18 drives the rotating base 19 from a horizontal position to a vertical position, so that the printed round tube on the pick-and-place plate 21 is vertically downward and directly facing the empty position of the tray 51. Driven by the robotic arm 16, the printed round tube is placed vertically on the tray 51, and then another round tube to be printed is magnetically attracted. The above operation steps are repeated until the tray 51 is full. After all the round tubes have completed the printing process, the drive mechanism 18 drives the rotating seat 19 to rotate until the suction cup 22 on the rotating seat 19 is vertically downward. The suction cup 22 places the marker block 52 on the material tray 51 in the state placement position 53 corresponding to the number of printing cycles, so as to mark the state of the material tray 51. For example, when the marker block 52 is in the first state placement position 53, it means that the round tube on the material tray 51 has completed one printing cycle. When the marker block 52 is in the second state placement position 53, it means that the round tube on the material tray 51 has completed a second printing cycle. The loading and unloading robot 10 has a simple and compact structure, low cost, and can realize the flipping and picking up of the round tubes to be printed and the round tubes after printing, which improves the efficiency of picking up and placing round tubes. It uses magnetic attraction to hold the end face of the round tube, which will not cause deformation or surface damage to the round tube. It can also use the suction cup 22 to pick up and place the marker block 52 to mark the state of the material tray 51.

[0035] In this embodiment, the magnetic attraction assembly 20 includes a telescopic driver 23 mounted on the rotating base 19, a mounting plate 24 mounted on the telescopic end of the telescopic driver 23, and a magnet 25 mounted on the mounting plate 24. The telescopic driver 23 is used to drive the mounting plate 24 to move closer to or further away from the pick-up and put-away plate 21. When the mounting plate 24 of one magnetic attraction assembly 20 moves closer to the pick-up and put-away plate 21, the mounting plate 24 of the other magnetic attraction assembly 20 moves away from the pick-up and put-away plate 21, so that when one magnetic attraction assembly 20 is in a magnetic attraction state, the other magnetic attraction assembly 20 is in a waiting state. Specifically, the telescopic driver 23 can be a cylinder.

[0036] In practical applications, the telescopic actuator 23 drives the mounting plate 24, along with the magnet 25, to approach or move away from the pick-and-place plate 21 to achieve magnetic attraction and release of the round tube; when the magnet 25 is close to the pick-and-place plate 21, the magnet 25 magnetically attracts the round tube onto the pick-and-place plate 21; when the magnet 25 leaves the pick-and-place plate 21, the round tube can be separated from the pick-and-place plate 21.

[0037] In this embodiment, the first automatic round tube printing equipment 5 and / or the second automatic round tube printing equipment 6 further includes a first lower CCD vision positioning mechanism 26 located between the material tray conveying mechanism 8 and the round tube printing machine 9. The first lower CCD vision positioning mechanism 26 is electrically connected to the loading and unloading robot 10. When the loading and unloading robot 10 picks up the round tube on the material tray 51, the loading and unloading robot 10 first moves the round tube to the first lower CCD vision positioning mechanism 26. The first lower CCD vision positioning mechanism 26 performs visual positioning of the position of the round tube on the loading and unloading robot 10, and then accurately places the round tube horizontally on the round tube printing fixture 33 of the round tube printing machine 9.

[0038] In this embodiment, the rotary tube printing machine 9 includes a machine base 27 located on one side of the material tray conveying mechanism 8, a moving drive mechanism 28 mounted on the machine base 27, a support frame 29 mounted on the top surface of the machine base 27 away from the end of the loading and unloading robot 10, a screen printing device 30 mounted on the support frame 29, a lifting drive mechanism 31 mounted on the moving end of the moving drive mechanism 28, a lifting seat 32 mounted on the lifting end of the lifting drive mechanism 31, a rotary tube printing fixture 33 mounted on the lifting seat 32, and a lifting screen wiping device 34 mounted on the lifting seat 32 and located on one side of the rotary tube printing fixture 33. The rotary tube printing fixture 33 and the lifting screen wiping device 34 are arranged sequentially along the moving drive direction of the moving drive mechanism 28. The lifting screen wiping device 34 is used to wipe the screen of the screen printing device 30.

[0039] In practical applications, the loading / unloading robot 10 places the round tube horizontally on the round tube printing fixture 33. The moving drive mechanism 28 drives the round tube printing fixture 33 and the round tube to translate, so that the round tube moves to below the screen printing device 30. At the same time, the lifting drive mechanism 31 drives the lifting seat 32 to lift the round tube printing fixture 33 and the round tube, so that the peripheral wall of the round tube contacts the screen of the screen printing device 30. While the screen printing device 30 prints on the round tube, the round tube printing fixture 33 drives the round tube to rotate, so that the screen printing device 30 can print on the peripheral wall of the round tube. After printing is completed, the lifting drive mechanism 31 drives the round tube printing fixture 33 to descend, and the moving drive mechanism 28 drives the round tube printing fixture 33 to move and reset. After the loading / unloading robot 10 takes away the printed round tube, it places the round tube to be printed on the round tube printing fixture 33. When it is necessary to wipe and clean the screen of the screen printing device 30, the lifting screen cleaning device 34 is raised, and the moving drive mechanism 28 drives the lifting screen cleaning device 34 to move back and forth, so that the lifting screen cleaning device 34 wipes and cleans the screen of the screen printing device 30.

[0040] In this embodiment, the lifting-type cleaning device 34 includes a base 35 mounted on the lifting seat 32, a cleaning seat 36 lifted and disposed on the base 35, a lifting drive unit 37 mounted on the base 35 and used to drive the cleaning seat 36 to rise and fall, a mounting seat 38 mounted on the cleaning seat 36, a cleaning roller 39 rotatably connected to the top of the mounting seat 38, a guide roller 40 rotatably connected to the bottom of the mounting seat 38 and disposed parallel to the cleaning roller 39, a take-up shaft 41 rotatably connected to the cleaning seat 36, a take-up drive mechanism 42 mounted on the cleaning seat 36 and used to drive the take-up shaft 41 to rotate, an unwind shaft 43 rotatably connected to the cleaning seat 36 and disposed parallel to the take-up shaft 41, and a damper 44 mounted on the cleaning seat 36. The damping shaft of the damper 44 is coaxially connected to the unwind shaft 43. The take-up shaft 41 and the unwind shaft 43 are located on the same side of the mounting seat 38, and the upper side of the cleaning roller 39 extends beyond the top surface of the mounting seat 38.

[0041] In practical applications, the cleaning cloth roll is mounted on the unwinding shaft 43. The cleaning cloth released from the roll winds from bottom to top, passing through the guide roller 40 and the cleaning roller 39, before winding onto the take-up drum of the take-up shaft 41. When the screen of the screen printing device 30 needs cleaning, the lifting drive unit 37 drives the cleaning seat 36 to rise, so that the cleaning cloth on the cleaning roller 39 contacts the screen of the screen printing device 30. Then, the moving drive mechanism 28 drives the base 35, along with the cleaning seat 36, to move back and forth, allowing the cleaning cloth on the cleaning roller 39 to wipe the screen of the screen printing device 30, thus cleaning the screen. When the cleaning cloth needs to be replaced, the take-up drive mechanism 42 drives the take-up shaft 41 to rotate by a preset angle. The take-up shaft 41 rotates by the preset angle to wind the cleaning cloth for a preset length, so that the dirty cleaning cloth is wound onto the take-up drum, and the new cleaning cloth is located on the cleaning roller 39, making it convenient for the cleaning cloth to clean the screen again. Throughout the process, the damper 44 provides damping force to the unwinding shaft 43 to ensure that the cleaning cloth is always taut, preventing the cleaning cloth from becoming loose and affecting the cleaning effect on the screen. The lifting screen cleaning device 34 has a simple and compact structure, low cost, small size, and small space occupation. The winding path of the cleaning cloth is short, and the movement of the cleaning cloth is smooth, which facilitates the replacement and winding of the cleaning cloth roll.

[0042] In this embodiment, the take-up shaft 41 and / or the unwind shaft 43 are fitted with multiple spring plungers, and the ball bearings of the spring plungers can extend beyond the peripheral wall of the take-up shaft 41 or the unwind shaft 43. In practical applications, the ball bearings of the spring plungers elastically clamp the inner wall of the take-up drum onto the take-up shaft 41, facilitating the disassembly and replacement of the take-up drum; the ball bearings of the spring plungers elastically clamp the inner wall of the cleaning cloth roll onto the unwind shaft 43, facilitating the replacement of the cleaning cloth roll.

[0043] In another embodiment, the take-up shaft 41 and / or the unwind shaft 43 are pneumatic shafts. In practical applications, the pneumatic shafts expand or contract to clamp or release the take-up drum or cleaning cloth roll, facilitating the replacement or disassembly of the take-up drum or cleaning cloth roll.

[0044] In this embodiment, the rotary screen printing machine 9 further includes a second lower CCD vision positioning mechanism 45 mounted on the lifting base 32. The rotary screen printing fixture 33, the lifting screen wiping device 34, and the second lower CCD vision positioning mechanism 45 are arranged sequentially along the moving drive direction of the moving drive mechanism 28. In practical applications, the second lower CCD vision positioning mechanism 45 can position the markings on the screen of the screen printing device 30 to determine the printing position and direction of the screen.

[0045] In this embodiment, the conveyor line 2 is rotatably provided with two parallel and oppositely arranged conveyor belts 46. The lifting and receiving mechanism 12 includes a receiving seat 47 that is lifted and disposed between the two conveyor belts 46, a plurality of rotating rollers 48 that are rotatably connected to the receiving seat 47, a rotation drive module 49 that is installed on the bottom surface of the receiving seat 47 and is used to drive the plurality of rotating rollers 48 to rotate synchronously, and a lifting drive module 50 that is installed on the bottom surface of the frame of the conveyor line 2 and is used to drive the receiving seat 47 to lift. The central axes of the plurality of rotating rollers 48 are on the same horizontal plane, the plurality of rotating rollers 48 are arranged in parallel and form a receiving surface, a baffle 54 is provided on one side of the frame of the conveyor line 2, the baffle 54 is located on the side of the receiving surface away from the material tray conveying mechanism 8, and the output end of the material tray conveying mechanism 8 is located on the other side of the frame of the conveyor line 2.

[0046] In practical applications, when the tray conveying mechanism 8 needs to convey the tray 51 to the conveyor line 2, the lifting drive module 50 drives the receiving seat 47 to lift up along with multiple rotating rollers 48, so that the multiple rotating rollers 48 are raised to a height position that can connect with the tray conveying mechanism 8. At this time, the tray conveying mechanism 8 conveys the tray 51 to the multiple rotating rollers 48. The tray 51 moves on the multiple rotating rollers 48 until the tray 51 abuts against the baffle 54. Then, the lifting drive module 50 drives the receiving seat 47 to descend along with the multiple rotating rollers 48 and the tray 51 until the tray 51 is placed on the two conveyor belts 46 of the conveyor line 2. The two conveyor belts 46 of the conveyor line 2 convey the tray 51.

[0047] Specifically, the round tube printing fixture 33 includes a fixed rotating chuck module 55 mounted on one end of the lifting base 32, an X-axis drive mechanism 56 mounted on the lifting base 32, a Y-axis drive mechanism 57 mounted on the drive end of the X-axis drive mechanism 56, and a movable rotating chuck module 58 mounted on the drive end of the Y-axis drive mechanism 57 and correspondingly cooperating with the fixed rotating chuck module 55. In practical applications, the X-axis drive mechanism 56 and the Y-axis drive mechanism 57 work together to drive the movable rotary chuck module 58 away from the fixed rotary chuck module 55, and the movable rotary chuck module 58 is misaligned with the fixed rotary chuck module 55. At this time, the loading and unloading robot 10 can remove the printed round tube from the fixed rotary chuck module 55 and place the round tube to be printed horizontally on the fixed rotary chuck module 55. Then, the X-axis drive mechanism 56 and the Y-axis drive mechanism 57 work together to drive the movable rotary chuck module 58 to move closer to the fixed rotary chuck module 55, and the movable rotary chuck module 58 cooperates with the fixed rotary chuck module 55 to clamp the round tube and drive the round tube to rotate in the circumferential direction.

[0048] Preferably, both the fixed rotating chuck module 55 and the movable rotating chuck module 58 can adopt existing structures, as can be found in the patent document with application number 202422730964.3, which will not be described in detail here.

[0049] All technical features in this embodiment can be freely combined according to actual needs.

[0050] The above embodiments are preferred implementations of this utility model. In addition, this utility model can also be implemented in other ways. Any obvious substitutions without departing from the concept of this technical solution are within the protection scope of this utility model.

Claims

1. An automated production line for printing on round tubes, characterized in that: The system includes a feeding cart (1), a conveyor line (2), a sintering furnace (3) connected to the output end of the conveyor line (2), a first output mechanism (4) connected to the output end of the sintering furnace (3), and a first round tube automatic printing device (5) and multiple second round tube automatic printing devices (6) sequentially arranged on the side of the conveyor line (2) along the conveying direction; a receiving conveying mechanism (7) is provided on the top of the feeding cart (1); the first round tube automatic printing device (5) and / or the second round tube automatic printing device (6) include a tray conveying mechanism (8) arranged on one side of the conveyor line (2), a round tube printing machine (9) arranged on one side of the tray conveying mechanism (8), and a tray conveying mechanism (9) located on the tray conveying mechanism. (8) The loading and unloading robot (10) between the tube printing machine (9) and the upper CCD vision positioning mechanism (11) mounted on the frame of the tray conveying mechanism (8) are electrically connected to the loading and unloading robot (10); a lifting receiving mechanism (12) for connecting with the output end of the tray conveying mechanism (8) is provided in the middle of the conveying line (2); the receiving conveying mechanism (7) can connect with the input end of the tray conveying mechanism (8) or the output end of the first output mechanism (4); multiple tray status information sensors (13) are installed on the frame of the first output mechanism (4), and multiple tray status information sensors (13) are electrically connected to the feeding car (1).

2. The automatic production line for round tube printing according to claim 1, characterized in that: The automatic production line for round tube printing also includes a buffer conveying mechanism (14) and a second output mechanism (15), and the receiving conveying mechanism (7) can be connected to the input end of the buffer conveying mechanism (14) or the second output mechanism (15).

3. The automatic production line for round tube printing according to claim 2, characterized in that: The number of feeding carts (1) is at least two, at least one feeding cart (1) is movably disposed between the input end of the first output mechanism (4) and the input end of the buffer conveying mechanism (14) or the input end of the second output mechanism (15), and at least one feeding cart (1) is movably disposed between the output end of the buffer conveying mechanism (14) and the input end of the tray conveying mechanism (8).

4. The automatic production line for round tube printing according to claim 1, characterized in that: The loading and unloading robot (10) includes a robotic arm (16) located between the material tray conveying mechanism (8) and the cylindrical printing machine (9), a fixed seat (17) installed at the execution end of the robotic arm (16), a rotation drive mechanism (18) installed at the fixed seat (17), a rotating seat (19) installed at the rotating end of the rotation drive mechanism (18), two sets of magnetic suction components (20) installed side by side in the rotating seat (19), a pick-and-place plate (21) installed at one end of the rotating seat (19) and corresponding to the magnetic suction components (20), and a suction cup (22) installed on one side of the other end of the rotating seat (19). The pick-and-place plate (21) encapsulates the magnetic suction components (20) in the rotating seat (19). Both sets of magnetic suction components (20) can magnetically attract the cylindrical tube to the pick-and-place plate (21). The rotation drive mechanism (18) is used to drive the rotating seat (19) to rotate.

5. The automatic production line for round tube printing according to claim 4, characterized in that: The magnetic attraction assembly (20) includes a telescopic driver (23) mounted on the rotating base (19), a mounting plate (24) mounted on the telescopic end of the telescopic driver (23), and a magnet (25) mounted on the mounting plate (24). The telescopic driver (23) is used to drive the mounting plate (24) to move closer to or away from the pick-up and drop-off plate (21). When the mounting plate (24) of one magnetic attraction assembly (20) moves closer to the pick-up and drop-off plate (21), the mounting plate (24) of the other magnetic attraction assembly (20) moves away from the pick-up and drop-off plate (21).

6. The automatic production line for round tube printing according to claim 1, characterized in that: The first automatic round tube printing equipment (5) and / or the second automatic round tube printing equipment (6) further include a first lower CCD vision positioning mechanism (26) located between the tray conveying mechanism (8) and the round tube printing machine (9), the first lower CCD vision positioning mechanism (26) being electrically connected to the loading and unloading robot (10).

7. The automated production line for round tube printing according to claim 1, characterized in that: The rotary printing machine (9) includes a machine base (27), a moving drive mechanism (28) mounted on the machine base (27), a support frame (29) mounted on the top surface of the machine base (27) away from the loading and unloading robot (10), a screen printing device (30) mounted on the support frame (29), a lifting drive mechanism (31) mounted on the moving end of the moving drive mechanism (28), a lifting seat (32) mounted on the lifting end of the lifting drive mechanism (31), a rotary printing fixture (33) mounted on the lifting seat (32), and a lifting screen wiping device (34) mounted on the lifting seat (32) and located on one side of the rotary printing fixture (33). The rotary printing fixture (33) and the lifting screen wiping device (34) are arranged sequentially along the moving drive direction of the moving drive mechanism (28). The lifting screen wiping device (34) is used to wipe the screen of the screen printing device (30).

8. The automatic production line for round tube printing according to claim 7, characterized in that: The lifting-type cleaning device (34) includes a base (35) mounted on the lifting seat (32), a cleaning seat (36) lifted and disposed on the base (35), a lifting drive unit (37) mounted on the base (35) and used to drive the cleaning seat (36) to rise and fall, a mounting base (38) mounted on the cleaning seat (36), a cleaning roller (39) rotatably connected to the top of the mounting base (38), a guide roller (40) rotatably connected to the bottom of the mounting base (38) and arranged parallel to the cleaning roller (39), and a guide roller (40) rotatably connected to the cleaning seat (36). The cleaning roller (39) has a take-up shaft (41), a take-up drive mechanism (42) mounted on the cleaning seat (36) and used to drive the take-up shaft (41) to rotate, an unwinding shaft (43) rotatably connected to the cleaning seat (36) and arranged parallel to the take-up shaft (41), and a damper (44) mounted on the cleaning seat (36). The damping shaft of the damper (44) is coaxially connected to the unwinding shaft (43). The take-up shaft (41) and the unwinding shaft (43) are located on the same side of the mounting seat (38), and the upper side of the cleaning roller (39) extends out of the top surface of the mounting seat (38).

9. The automatic production line for round tube printing according to claim 7, characterized in that: The cylindrical printing press (9) also includes a second lower CCD vision positioning mechanism (45) installed on the lifting base (32). The cylindrical printing fixture (33), the lifting screen wiping device (34), and the second lower CCD vision positioning mechanism (45) are arranged sequentially along the moving drive direction of the moving drive mechanism (28).

10. The automated production line for round tube printing according to claim 1, characterized in that: The conveyor line (2) is rotatably equipped with two parallel and oppositely arranged conveyor belts (46). The lifting and receiving mechanism (12) includes a receiving seat (47) that is lifted and arranged between the two conveyor belts (46), multiple rotating rollers (48) that are rotatably connected to the receiving seat (47), a rotation drive module (49) installed on the bottom surface of the receiving seat (47) and used to drive the multiple rotating rollers (48) to rotate synchronously, and a lifting drive module (50) installed on the bottom surface of the frame of the conveyor line (2) and used to drive the receiving seat (47) to lift. The central axes of the multiple rotating rollers (48) are on the same horizontal plane. The multiple rotating rollers (48) are arranged in parallel and form a receiving surface. A baffle (54) is provided on one side of the frame of the conveyor line (2). The baffle (54) is located on one side of the receiving surface. The output end of the material tray conveying mechanism (8) is located on the other side of the frame of the conveyor line (2).

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