A fully automatic rotary circular digital inkjet printer

Abstract

The present invention discloses a fully automatic rotary disk type circular digital inkjet printer, belonging to the technical field of inkjet printers. It includes a housing. A disk is installed on a support column provided on the bottom wall of the inner cavity of the housing. The output end of a rotary motor fixed on the top of the disk is installed with a drum. A first air chamber formed between the inner cavity wall of the drum and a partition plate is communicated with an airbag sleeved on the outer ring of the drum. The first air chamber is communicated with the inner cavity of the drum. The other end of a return spring fixed in the inner cavity of the drum is fixed with a piston. The piston is fixed with a push rod penetrating the drum. A support member communicated with an inflator is sleeved on the outer ring of the drum. The drum is communicated with the inner cavity of the support member. Guide air boxes on both sides of the support column are respectively connected with a cooling box and a drying box. The bottom of an ink supply device installed on the top of the inner cavity of the housing is provided with a plurality of inkjet heads and cooling nozzles. Drying nozzles are arranged on the surface of the disk. A driving motor is arranged in the support column. The present invention only improves the production efficiency and stability of the equipment through airbag fixation and automatic reset.

Description

Technical Field

[0001] The present invention relates to the technical field of inkjet printers, and in particular to a fully automatic rotary circular digital inkjet printer. Background Art

[0002] Traditional cup inkjet printing equipment mostly relies on mechanical jigs to fix the cups. However, the use of jigs not only may be unstable during the fixing process, but also may cause the cups to displace or even damage the cup surface due to excessive or uneven pressing force of the jigs on the cups. Especially when dealing with fragile or easily damaged cups, traditional mechanical jigs are likely to cause physical damage such as scratches, cracks or depressions on the cups. On the other hand, in traditional equipment, once the printing is completed, the process of releasing the fixation usually requires a relatively complex mechanical device. Although the cups are firmly fixed during the fixing process, after the printing is completed, the process of the automation system releasing the fixation is cumbersome and inefficient, seriously affecting the production efficiency. Summary of the Invention

[0003] The purpose of the present invention is to provide a fully automatic rotary circular digital inkjet printer, which only improves the production efficiency and stability of the equipment through airbag fixation and automatic reset.

[0004] To achieve the above purpose, the present invention adopts the following technical solutions: A fully automatic rotary circular digital inkjet printer, including a housing. A rotatable disk is installed on a support column provided on the bottom wall of the inner cavity of the housing. The output ends of a number of rotary motors fixed on the top of the disk are installed with rollers. A first air chamber formed between the inner cavity wall of the roller and a partition plate is communicated with a number of airbags sleeved on the outer ring of the roller. The first air chamber is communicated with the inner cavity of the roller through a pipeline. The other end of a return spring fixed in the inner cavity of the roller is fixed with a piston. The piston is fixed with a push rod penetrating the roller. A support member sleeved on the outer ring of the roller is communicated with an inflator through a pipeline. The roller is communicated with the inner cavity of the support member through a number of circular holes provided on the outer ring;

[0005] The guiding air boxes on both sides of the support column are respectively connected with a cooling box and a drying box. The bottom of an ink supply device installed on the top of the inner cavity of the housing is provided with a number of inkjet heads and cooling nozzles communicated with the left guiding air box. A number of drying nozzles communicated with the right guiding air box are arranged on the surface of the disk. A driving motor capable of driving the disk to rotate is provided in the support column, and can synchronously drive the fan blades in the guiding air box through a number of bevel gears.

[0006] As a further description of the above technical solution: The surface of the housing is provided with a discharge hole and a feed hole. A guide chute is installed at the discharge hole, and a material conveyor is provided at the feed hole.

[0007] As a further description of the above technical solution: The inflator is fixedly connected to the top of the rotary motor, and the support member is fixedly connected to the top of the disk.

[0008] As a further description of the above technical solution: both the cooling box and the drying box are installed in the inner cavity of the outer shell, the ink feeder is communicated with the inkjet head through a pipeline, and the inkjet head is a digital inkjet nozzle.

[0009] As a further description of the above technical solution: a telescopic rod is fixed to the output end of the driving motor, a convex column is arranged at the bottom of the disc and penetrates through the inner cavity of the support column and is rotatably connected with the support column, and the telescopic end of the telescopic rod penetrates through the inner cavity of the convex column and is clamped with it.

[0010] As a further description of the above technical solution: a main bevel gear is sleeved on the output end of the driving motor, secondary bevel gears are engaged on both sides of the main bevel gear, a rotating rod fixed with the secondary bevel gears penetrates through the support column and the guiding air box, and a guiding fan blade is fixed on the rotating rod.

[0011] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are as follows:

[0012] 1. By using an inflator to deliver compressed gas into the support member, the cup is quickly and stably fixed. The gas enters the inner cavity of the drum through the round holes, and pushes the piston to compress the return spring. Then, the gas between the piston and the drum is transported to the first air chamber through a pipeline, and finally the gas is transported to the airbag, causing the airbag to expand and closely contact the inner wall of the cup. This process enables the cup to be firmly fixed on the drum, thus preventing the cup from loosening or shifting during the inkjet printing process. The way the airbag expands and contacts the inner wall of the cup is gentler than traditional jigs, effectively avoiding damage to the cup surface caused by traditional mechanical jigs. Especially when dealing with fragile or easily damaged cups, the probability of damage can be reduced.

[0013] 2. After the cup is printed, the compressed gas inside the support member is discharged, and all components quickly reset. By controlling the inflation and deflation processes, the airbag contracts and releases the fixing force on the cup. The return spring and the piston drive the ejector rod to eject the printed cup. This design realizes the quick release of the cup and also ensures the efficient operation of the equipment. Through the automated deflation and reset processes, the fixing of the cup can be quickly released, reducing the intervention of manual operation, thereby accelerating the turnover of the entire production line and further improving work efficiency. The quick and smooth ejection of the cup reduces the burden on the operator, avoids the situation of the cup getting stuck or being difficult to release, makes the operation more fluent, and reduces the failure rate of the equipment.

[0014] 3. The present invention realizes multiple drives through a drive motor. On the one hand, the drive motor can drive the disc to rotate, so that the drum and the cup rotate together for inkjet printing. On the other hand, the drive motor also drives the fan blades in the guiding air box through bevel gears, and sends the cold air generated by the cooling box and the hot air generated by the drying box to the cooling nozzle and the drying nozzle. The drive motor can complete two operations with different functions at the same time, avoiding the need for multiple drive motors, reducing additional drive devices and mechanical components, and making the equipment more concise and efficient. Description of the Drawings

[0015] Figure 1 Shows the front view of the present invention;

[0016] Figure 2 Shows the sectional view of the present invention;

[0017] Figure 3 Shows the present invention Figure 2 The enlarged view at ;

[0018] Figure 4 Shows the three-dimensional view of the disc of the present invention;

[0019] Figure 5 Shows the sectional view of the rotating motor and the drum of the present invention;

[0020] Figure 6 Shows the top view sectional view of the housing of the present invention;

[0021] Figure 7 Shows the bottom view sectional view of the housing of the present invention;

[0022] Figure 8 Shows the three-dimensional view of the present invention;

[0023] Figure 9 Shows the three-dimensional view of the telescopic rod and the convex column of the present invention;

[0024] Figure 10 Shows the step diagram of the cup fixing and ejection of the present invention.

[0025] Legend:

[0026] 10. Housing; 101. Discharge hole; 102. Feed hole; 103. Material guiding groove; 11. Support column; 12. Disc; 121. Convex column; 13. Cooling box; 14. Drying box; 15. Ink supply; 16. Inkjet head; 17. Cooling nozzle; 18. Drying nozzle; 19. Drive motor;

[0027] 20. Rotating motor; 21. Drum; 211. Partition board; 22. Airbag; 23. Return spring; 24. Piston; 25. Push rod; 26. Inflator; 27. Support;

[0028] 30. Guide bellows; 31. Guide fan blades;

[0029] 40. Material conveyor; 41. Telescopic rod; 42. Main bevel gear; 43. Sub bevel gear; 44. Rotating rod. Detailed implementation manner

[0030] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0031] Please refer to Figures 1-10 , the present invention provides a technical solution: a fully automatic rotary circular digital inkjet printer, including a housing 10. A rotatable disk 12 is installed on a support column 11 provided on the bottom wall of the inner cavity of the housing 10. The output ends of a number of rotating motors 20 fixed on the top of the disk 12 are installed with drums 21. A first air chamber formed between the inner cavity wall of the drum 21 and a partition plate 211 is communicated with a number of air bags 22 sleeved on the outer ring of the drum 21. The first air chamber is communicated with the inner cavity of the drum 21 through a pipeline. The other end of a return spring 23 fixed in the inner cavity of the drum 21 is fixed with a piston 24. The piston 24 is fixed with a push rod 25 penetrating the drum 21. A support member 27 sleeved on the outer ring of the drum 21 is communicated with an inflater 26 through a pipeline. The drum 21 is communicated with the inner cavity of the support member 27 through a number of round holes provided on the outer ring.

[0032] Refer to Figure 5 and Figure 10 , in the initial state, the air bag 22 is in an uninflated state. When the drum 21 is inserted into the cup, compressed gas is conveyed into the inner cavity of the support member 27 through the inflater 26. The gas enters the inner cavity of the drum 21 through the round holes, and then pushes the piston 24 to compress the return spring 23. The gas between the piston 24 and the drum 21 is conveyed into the first air chamber through the pipeline, and then the gas in the first air chamber is conveyed into the air bag 22, so that the air bag 22 expands in the cup and contacts the inner wall of the cup. The cup is fixed by the expanded air bag 22. At this time, the rotating motor 20 can drive the drum 21 to rotate, and then drive the cup to rotate.

[0033] This process enables the cup to be firmly fixed on the drum 21, thereby preventing the cup from loosening or deviating in position during the inkjet printing process. The way the air bag 22 expands and contacts the inner wall of the cup is softer than that of traditional jigs, effectively avoiding damage to the surface of the cup caused by traditional mechanical jigs. Especially when dealing with fragile or easily damaged cups on the surface, the probability of damage can be reduced.

[0034] Use the inflator 26 to suck out the compressed gas inside the support member 27. The return spring 23 drives the piston 24 to reset. The gas in the airbag 22 enters the first air chamber, and the gas in the first air chamber returns between the piston 24 and the inner wall of the drum 21. The airbag 22 shrinks, and all components reset to the initial state. At this time, continue to discharge the compressed gas inside the support member 27. The return spring 23 drives the ejector rod 25 to eject and contact the inner wall of the cup with the drum 21, and then the ejector rod 25 ejects the cup. After the cup is ejected, inflate the inside of the support member 27 to reset all components to the initial state.

[0035] This design realizes the rapid release of the cup and also ensures the efficient operation of the equipment. Through the automated deflation and reset process, it can quickly release the fixation of the cup, reduce the intervention of manual operation, thereby accelerating the turnover of the entire production line, further improving work efficiency. The rapid and smooth ejection of the cup reduces the burden on the operator, avoids the situation of cup jamming or difficult release, makes the operation more fluent, and reduces the failure rate of the equipment.

[0036] The guiding air boxes 30 on both sides of the support column 11 are respectively connected with a cooling box 13 and a drying box 14. The cooling box 13 can generate cold air, and the drying box 14 can generate hot air. The ink supply device 15 is installed at the top of the inner cavity of the housing 10. The bottom of the ink supply device 15 is provided with several inkjet heads 16 and a cooling spray head 17 communicated with the left guiding air box 30. The ink supply device 15 is responsible for providing the required ink for the inkjet heads 16 and ensuring the stable supply of ink. The ink supply device 15 includes components such as an ink tank, pipes, filters, and pumps to ensure the stable flow of ink and avoid printing quality problems caused by unstable ink supply. Several drying spray heads 18 communicated with the right guiding air box 30 are arranged on the surface of the disk 12. A driving motor 19 for driving the disk 12 to rotate is arranged inside the support column 11, and can synchronously drive the fan blades in the guiding air box 30 through several bevel gears.

[0037] Multiple drives can be achieved through the driving motor 19. On the one hand, the driving motor 19 can drive the disk 12 to rotate, so that the drum 21 and the cup rotate together for inkjet printing. On the other hand, the driving motor 19 also drives the fan blades in the guiding air box 30 through bevel gears, and sends the cold air generated by the cooling box 13 and the hot air generated by the drying box 14 to the cooling spray head 17 and the drying spray head 18. The driving motor 19 can complete two operations with different functions at the same time, avoiding the need for multiple driving motors 19, reducing additional driving devices and mechanical components, and making the equipment more concise and efficient.

[0038] The inkjet head 16 is one of the core components of digital inkjet printing. During its operation, certain heat is generated. If the temperature is too high, it will cause the inkjet head 16 to clog, the inkjet accuracy to decline, and even damage the inkjet head 16. Therefore, a cooling system needs to be set near the inkjet head 16. During operation, the cooling box 13 generates cold air and conveys it through a pipeline to the left guiding air box 30. The driving motor 19 drives the fan blades in the left guiding air box 30 to run through bevel gears, conveys the cold air to the cooling nozzle 17, and the cooling nozzle 17 can spray out to provide a cooling air flow to help keep the temperature of the inkjet head 16 stable.

[0039] After each cup is inkjet-printed, a drying system needs to be set on the disk 12. The drying system blows hot air onto the inkjet-printed surface through a fan to quickly evaporate moisture or solvent, ensuring that the ink dries quickly. During operation, the drying box 14 generates hot air, and the hot air is conveyed through a pipeline to the right guiding air box 30. The driving motor 19 drives the fan blades in the right guiding air box 30 to run through bevel gears, and then conveys the hot air to the drying nozzle 18 through a pipeline to ensure that the ink on the entire surface of the cup dries quickly.

[0040] Furthermore, the surface of the housing 10 is provided with a discharge hole 101 and a feed hole 102. A guide trough 103 is installed at the discharge hole 101, and a material conveyor 40 is provided at the feed hole 102.

[0041] During operation, the material conveyor 40 conveys the cups to be printed from the previous working point to the feed hole 102 on the surface of the housing 10. The material conveyor 40 is provided with components such as a telescopic cylinder, which can push the cups to be printed against the outer ring of the drum 21. This process is fully automated and does not require manual intervention, thus improving production efficiency and reducing errors caused by improper manual operation.

[0042] Furthermore, the inflator 26 is fixedly connected to the top of the rotating motor 20, and the support 27 is fixedly connected to the top of the disk 12.

[0043] Furthermore, both the cooling box 13 and the drying box 14 are installed in the inner cavity of the housing 10. The ink supply 15 is communicated with the inkjet head 16 through a pipeline. The inkjet head 16 is a nozzle of a digital inkjet printer, and the inkjet head 16 is used to accurately spray ink onto the surface of the cup to form the required patterns, texts, or images. The inkjet head 16 adopts thermal bubble or piezoelectric technology and can adjust the inkjet accuracy, color, particle size, etc. according to needs. The number of inkjet heads 16 may be set with multiple stations according to requirements to support multi-color printing.

[0044] Furthermore, a telescopic rod 41 is fixed to the output end of the driving motor 19. A convex column 121 is provided at the bottom of the disk 12, which penetrates through the inner cavity of the support column 11 and is rotatably connected to the support column 11. The telescopic end of the telescopic rod 41 penetrates through the inner cavity of the convex column 121 and is snap-connected to it.

[0045] During operation, when the telescopic end of the telescopic rod 41 penetrates into the inner cavity of the convex column 121, the driving motor 19 can drive the disc 12 to rotate, thereby driving the roller 21 and the cup to rotate. When the telescopic end of the telescopic rod 41 disengages from the inner cavity of the convex column 121, the driving motor 19 will not drive the roller 21 and the cup to rotate. At this time, the driving motor 19 can drive the fan blade in the guiding air box 30 to operate through the bevel gear.

[0046] Furthermore, a main bevel gear 42 is sleeved on the output end of the driving motor 19. Two side bevel gears 43 are engaged with both sides of the main bevel gear 42. A rotating rod 44 that penetrates through the support column 11 and the guiding air box 30 is fixed to the side bevel gear 43, and a guiding fan blade 31 is fixed to the rotating rod 44.

[0047] During operation, the output end of the driving motor 19 drives the main bevel gear 42 to rotate, thereby driving the two side bevel gears 43 to rotate. The side bevel gear 43 drives the guiding fan blade 31 to operate through the rotating rod 44.

[0048] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, makes equivalent substitutions or changes, and should be covered within the protection scope of the present invention.

Claims

1. A fully automatic rotary disc circular digital inkjet printer, comprising a housing (10), characterized in that: A rotatable disc (12) is mounted on a support column (11) on the bottom wall of the inner cavity of the housing (10); a roller (21) is mounted on the output end of a plurality of rotating motors (20) fixed on the top of the disc (12); a first air chamber formed between the inner cavity wall of the roller (21) and a partition plate (211) is connected to a plurality of air bags (22) sleeved on the outer ring of the roller (21); the first air chamber is connected to the inner cavity of the roller (21) through a pipeline; a piston (24) is fixed to the other end of a return spring (23) fixed to the inner cavity of the roller (21); a push rod (25) penetrating the roller (21) is fixed to the piston (24); a support member (27) is sleeved on the outer ring of the roller (21) and is connected to an inflator (26) through a pipeline; the roller (21) is connected to the inner cavity of the support member (27) through a plurality of circular holes provided on the outer ring; The guide air boxes (30) on both sides of the support column (11) are respectively connected to a cooling box (13) and a drying box (14); a plurality of inkjet heads (16) and a cooling nozzle (17) connected to the left guide air box (30) are arranged at the bottom of an ink supply device (15) installed at the top of the inner cavity of the housing (10); a plurality of drying nozzles (18) connected to the right guide air box (30) are arranged on the surface of the disc (12); a driving motor (19) for driving the disc (12) to rotate is arranged in the support column (11) and can synchronously drive the fan blades in the guide air box (30) to operate through a plurality of bevel gears; The inflator (26) is fixedly connected to the top of the rotating motor (20), and the support member (27) is fixedly connected to the top of the disc (12); The output end of the driving motor (19) is sleeved with a main bevel gear (42), and auxiliary bevel gears (43) are meshed on both sides of the main bevel gear (42). The auxiliary bevel gears (43) are fixed with a rotating rod (44) that passes through the support column (11) and the guide air box (30), and the rotating rod (44) is fixed with a guide blade (31).

2. The fully automatic rotary disc circular digital inkjet printer according to claim 1, characterized in that: A material discharge hole (101) and a material feed hole (102) are provided on the surface of the housing (10); a material guide trough (103) is installed at the material discharge hole (101), and a material conveyor (40) is provided at the material feed hole (102).

3. The fully automatic rotary disc circular digital inkjet printer according to claim 1, characterized in that: The cooling box (13) and the drying box (14) are both installed in the inner cavity of the outer shell (10); the ink supplier (15) is connected to the inkjet head (16) through a pipeline; the inkjet head (16) is a digital inkjet head.

4. The fully automatic rotary disc circular digital inkjet printer according to claim 1, characterized in that: A telescopic rod (41) is fixed to the output end of the driving motor (19); a convex column (121) is provided at the bottom of the disc (12) and penetrates the inner cavity of the supporting column (11) and is rotatably connected to the supporting column (11); and a telescopic end of the telescopic rod (41) penetrates the inner cavity of the convex column (121) and is clamped thereto.

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