A printing device for packaging box

By designing a printing device for packaging boxes, using motor-driven mixing components and oil-control components, the problems of low ink replenishment efficiency and environmental pollution in the prior art are solved, and an efficient and safe ink mixing and replenishment process is achieved.

CN111730975BInactive Publication Date: 2025-03-21WENZHOU HUALIAN PRINTING CO LTD
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Patent Information

Application Number
CN202010755524.7
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2020-07-31
Publication Date
2025-03-21
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

The existing packaging box ink replenishment methods rely on manual mixing and pouring, which is inefficient and easy to stain the environment and worker clothing.

Method used

A printing device for packaging boxes is designed, including printing assembly, oil supply assembly, filter assembly and cleaning assembly on the workbench. The oil supply assembly is mixed by a motor-driven mixing rod and a mixing blade. The mixed ink flows into the filter box through the oil inlet pipe for filtering, and the ink volume is controlled through the oil control assembly to avoid manual operation.

Benefits of technology

It improves the ink mixing efficiency, reduces workers' labor, and avoids environmental pollution and dirty clothing caused by ink splashing.

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Abstract

The present invention relates to a printing device for packaging boxes, comprising a workbench, characterized in that: a printing component, an oil supply component, a cleaning component and a filtering component located between the printing component and the oil supply component are arranged on the workbench, and the beneficial effects of the present invention are: by opening a liquid inlet hole on the oil supply cover, it is convenient to pour various raw liquids, and after pouring, the various raw liquids are mixed by rotating the mixing rod and the mixing blades driven by the starting motor, thereby improving the mixing efficiency, and facilitating the mixed ink to flow into the filter box through the oil inlet pipe and filter the ink through the filter screen plate, and by arranging the oil control component, it is convenient to control the amount of ink flowing into the ink box, and there is no need for people to move the mixed ink to the ink box and pour it into the ink box, thereby reducing the labor of workers and avoiding ink splashing when pouring, thereby avoiding the phenomenon of dirtying the ground and the workers' clothes.
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Description

Technical Field

[0001] The invention belongs to the technical field of packaging box processing, and in particular relates to a printing device for packaging boxes. Background Art

[0002] The packaging box will be printed by an ink printing plate roller, and the ink printing plate roller will press the ink on the packaging box, thereby causing the ink in the ink box to become less. When the ink level is lower than the bottom end of the ink printing plate roller, the ink box needs to be replenished with ink. However, the existing replenishment method is to mix the ink manually, and then pour the ink into the ink box after mixing. The work efficiency is low when mixing manually, and the mixed ink needs to be poured into the ink box, which increases the workload of the workers. When pouring, the ink will splash, thereby dirtying the ground and the workers' clothes. Summary of the invention

[0003] In order to solve the above technical problems, the present invention provides the following technical solutions: a printing device for packaging boxes, comprising a workbench, characterized in that: a printing component, an oil supply component, a cleaning component and a filter component located between the printing component and the oil supply component are arranged on the workbench, the printing component comprises a frame fixedly arranged on the workbench, a rotating roller and a printing roller rotatably arranged on the frame, an ink box is arranged below the printing roller, the lower part of the printing roller is located in the ink box, the oil supply component comprises an oil supply box body fixedly arranged on the workbench, an oil supply cover located above the oil supply box body, a mixing rod is rotatably arranged in the oil supply box body, and the oil supply A motor is fixedly provided above the cover, and an output shaft of the motor is fixedly connected to a mixing rod. A circumferential outer surface of the mixing rod is provided with at least two mixing blades fixedly connected to the mixing rod. A liquid inlet hole is provided on the oil supply cover, and a liquid outlet hole is provided on the right side plate of the oil supply box. The filter assembly comprises a filter box fixedly provided on a workbench and a filter mesh plate fixedly provided in the filter box. A liquid inlet and a liquid outlet are provided on the filter box, and the liquid inlet and the liquid outlet are connected via an oil inlet pipe. A circulation hole is provided on the ink box, and the liquid outlet and the circulation hole are connected via an oil outlet pipe. An oil control assembly is provided in the liquid outlet hole.

[0004] The present invention is further configured as follows: the oil control component includes a movable groove opened in the oil supply box and an oil control cylinder fixedly arranged under the workbench, the piston rod of the output end of the oil control cylinder is movably arranged in the oil supply box, the movable groove is connected to the liquid outlet, a blocking plate is movably provided in the movable groove, the piston rod of the output end of the oil control cylinder is fixedly connected to the blocking plate, and a sealing ring is fixedly wrapped on the blocking plate.

[0005] The present invention is further configured as follows: an oil scraper assembly is provided at the rear of the printing roller, the oil scraper assembly includes an oil scraper frame fixedly arranged on a workbench and an oil scraper plate arranged between the oil scraper frame and the printing roller, the oil scraper plate and the oil scraper frame are connected via an oil scraper cylinder, the oil scraper cylinder is fixedly arranged on the oil scraper frame, and the piston rod at the output end of the oil scraper cylinder is fixedly connected to the oil scraper plate.

[0006] The present invention is further configured as follows: the oil supply cap and the oil supply tank are connected via a connecting assembly, the connecting assembly includes a connecting groove opened on the oil supply tank and a connecting block fixedly arranged under the oil supply cap, the connecting block is located in the connecting groove, and the connecting block and the oil supply tank are fixedly connected via a screw.

[0007] The present invention is further configured as follows: the cleaning component includes a cleaning box fixedly arranged on a workbench, a hollow rotating cylinder rotatably arranged in the cleaning box, and a left cleaning device and a right cleaning device fixedly arranged in the cleaning box, the hollow rotating cylinder is located between the left cleaning component and the right cleaning component, the left cleaning component and the right cleaning component are symmetrically arranged in structure, the right cleaning component includes a hollow cleaning plate fixedly arranged in the cleaning box, at least two cleaning nozzles fixedly arranged on the left side of the hollow cleaning plate, and a water storage tank located outside the cleaning box, the water storage tank is fixedly arranged on the workbench, the water storage tank and the hollow cleaning plate are connected by a cleaning pipe, a water pump is fixedly arranged on the cleaning pipe, and the water pump is fixedly arranged on the workbench.

[0008] The present invention is further configured as follows: a moving component for driving the oil supply cover to move is provided on the workbench.

[0009] The present invention is further configured as follows: the moving assembly includes a moving frame fixedly arranged on the workbench, a moving groove opened on the moving frame, and a left sleeve and a right sleeve movably arranged in the moving groove, a screw shaft is rotatably arranged in the moving groove, the screw shaft is rotatably arranged in the left sleeve and the right sleeve, a moving motor is fixedly arranged on the moving frame, the output shaft of the moving motor is fixedly connected to the screw shaft rod, a left lifting cylinder and a right lifting cylinder are respectively fixedly arranged below the left sleeve and the right sleeve, and the piston rod at the output end of the left lifting cylinder and the piston rod at the output end of the right lifting cylinder are both fixedly connected to the oil supply cover.

[0010] The present invention is further configured as follows: at least two supporting feet fixedly connected to the workbench are provided below the workbench.

[0011] The present invention is further configured as follows: an oil receiving groove is provided on the oil scraper plate, an oil receiving box is provided below the oil scraper plate, an oil return groove is provided on the bottom plate of the oil scraper plate, the oil receiving groove and the oil return groove are connected, the oil return groove is corresponding to the box opening of the oil receiving box, a filter plate is fixedly provided in the oil receiving box, and the oil receiving box and the ink box are fixedly connected via an oil return pipe.

[0012] The present invention is further configured as follows: the cleaning box, the oil supply box and the workbench are all provided with water outlets, and the water outlets are provided with sealing pads fixedly connected to the workbench.

[0013] The beneficial effects of the present invention are as follows: by providing a liquid inlet hole on the oil supply cover, it is convenient to pour in various stock liquids. After pouring in, the various stock liquids are mixed by starting the motor to drive the mixing rod and the mixing blades to rotate, thereby improving the mixing efficiency, and facilitating the mixed ink to flow into the filter box through the oil inlet pipe and filter the ink through the filter screen. By providing an oil control component, it is convenient to control the amount of ink flowing into the ink box, and there is no need for people to move the mixed ink to the ink box and pour it into the ink box, thereby reducing the labor of workers and avoiding ink splashing when pouring, thereby avoiding the phenomenon of dirtying the ground and the workers' clothes. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Attached Figure 1 It is a structural schematic diagram of the present invention;

[0015] Attached Figure 2 It is a side view schematic diagram of the oil scraping assembly of the present invention arranged on a workbench;

[0016] Attached Figure 3 It is a side view structural schematic diagram of the threaded shaft rod of the present invention being arranged in the left shaft sleeve;

[0017] Attached Figure 4 It is a schematic diagram of a top view of the structure in which the printing roller of the present invention is arranged in an ink box;

[0018] Attached Figure 5 For attachment Figure 1 A is a schematic diagram of the enlarged structure of the middle part;

[0019] Attached Figure 6 For attachment Figure 1 A schematic diagram of the enlarged structure of B;

[0020] Attached Figure 7 For attachment Figure 1 Schematic diagram of the enlarged structure of C in the figure. DETAILED DESCRIPTION

[0021] according to Figure 1-7The present embodiment discloses a printing device for a packaging box, comprising a workbench 1, on which a printing assembly 2, an oil supply assembly 3, a cleaning assembly 4 and a filtering assembly 5 located between the printing assembly 2 and the oil supply assembly 3 are arranged. The printing assembly 2 comprises a frame 6 fixedly arranged on the workbench 1, a rotating roller 7 and a printing roller 8 rotatably arranged on the frame 6, the rotating roller and the printing roller are respectively driven to rotate by a rotating motor fixedly arranged on the frame, an ink box 9 is arranged below the printing roller 8, and the lower part of the printing roller 8 is located in the ink box 9, so that the printing roller can be easily moved. The oil supply assembly 3 includes an oil supply box 10 fixedly arranged on the workbench 1, an oil supply cover 11 located above the oil supply box 10, a mixing rod 12 is rotatably arranged in the oil supply box 10, a motor 13 is fixedly arranged above the oil supply cover 11, the output shaft of the motor 13 is fixedly connected to the mixing rod 12, and the circumferential outer surface of the mixing rod 12 is provided with at least two mixing blades 58 fixedly connected to the mixing rod 12, and a liquid inlet hole 14 is provided on the oil supply cover 11. By providing the liquid inlet hole on the oil supply cover, it is convenient to pour in various stock liquids. After pouring, The starting motor drives the mixing rod and the mixing blade to rotate to mix various raw liquids, thereby improving the mixing efficiency. A liquid outlet 15 is provided on the right side plate of the oil supply box 10. The filter assembly 5 includes a filter box 16 fixedly arranged on the workbench 1 and a filter screen 17 fixedly arranged in the filter box 16. A liquid inlet 18 and a liquid outlet 19 are provided on the filter box 16. The liquid inlet 18 is connected to the liquid outlet 15 through an oil inlet pipe 20, so that the mixed ink flows into the filter box through the oil inlet pipe and passes through the filter screen to filter the ink. The ink box 9 is provided with a flow hole 21, and the liquid outlet 19 is connected to the flow hole 21 through an oil outlet pipe 22, so that the ink in the filter box can flow into the ink box through the oil outlet pipe. The liquid outlet 15 is provided with an oil control component 59. By setting the oil control component, it is convenient to control the amount of ink flowing into the ink box, and there is no need for people to move the mixed ink to the ink box and pour it into the ink box, which reduces the labor of workers and avoids the ink splashing when pouring, thereby avoiding the phenomenon of dirtying the ground and the workers' clothes.

[0022] The present invention is further configured as follows: the oil control component 59 includes a movable groove 23 opened in the oil supply box 10 and an oil control cylinder 24 fixedly arranged under the workbench 1, the piston rod of the output end of the oil control cylinder 24 is movably arranged in the oil supply box 10, the movable groove 23 is connected with the liquid outlet 15, and a baffle plate 25 is movably arranged in the movable groove 23, the piston rod at the output end of the oil control cylinder 24 is fixedly connected to the baffle plate 25, and a sealing ring 26 is fixedly wrapped on the baffle plate 25. After the original liquid is mixed by the mixing component, the baffle plate is driven to move downward by starting the oil control cylinder to open the liquid outlet, so as to facilitate the replenishment of ink to the ink box, and the sealing ring is wrapped on the baffle plate to play a sealing role, thereby preventing ink from flowing into the piston rod of the oil control cylinder.

[0023] The present invention is further configured as follows: an oil scraper assembly 27 is provided at the rear of the printing roller 8, and the oil scraper assembly 27 includes an oil scraper frame 28 fixedly arranged on the workbench 1 and an oil scraper plate 29 arranged between the oil scraper frame 28 and the printing roller 8. By arranging the oil scraper plate, it is convenient to scrape the ink on the printing plate. The oil scraper plate 29 is connected to the oil scraper frame 28 through an oil scraper cylinder 30, and the oil scraper cylinder 30 is fixedly arranged on the oil scraper frame 28. The piston rod at the output end of the oil scraper cylinder 30 is fixedly connected to the oil scraper plate 29. By arranging the oil scraper cylinder, the oil scraper cylinder drives the oil scraper plate to move left and right, so that the distance between the oil scraper plate and the printing roller is adjusted according to the different thickness of the ink required for different products.

[0024] The present invention is further configured as follows: the oil supply cap 11 is connected to the oil supply box 10 via a connecting assembly 31, the connecting assembly 31 includes a connecting groove 32 opened on the oil supply box 10 and a connecting block 33 fixedly arranged below the oil supply cap 11, the connecting block 33 is located in the connecting groove 32, the connecting block 33 and the oil supply box 10 are fixedly connected via a screw, when the oil supply cap is installed on the oil supply box, the connecting block is first aligned with the connecting groove, which plays a guiding role, and the connecting block and the oil supply box are fixedly connected via a screw, so that the oil supply cap is conveniently fixed on the oil supply box.

[0025] The present invention is further configured as follows: the cleaning assembly 4 includes a cleaning box 34 fixedly arranged on the workbench 1, a hollow rotating cylinder 35 rotatably arranged in the cleaning box 34, and a left cleaning device 36 and a right cleaning device 37 fixedly arranged in the cleaning box 34. By arranging the hollow rotating cylinder, the lower end of the mixing rod is supported. The hollow rotating cylinder 35 is located between the left cleaning assembly 36 and the right cleaning assembly 37. The left cleaning assembly 36 and the right cleaning assembly 37 are symmetrically arranged in structure. By arranging the left cleaning assembly and the right cleaning assembly, it is convenient to clean the mixing rod and the mixing blades. The right cleaning assembly 37 includes a hollow rotating cylinder fixedly arranged in the cleaning box 34. A hollow cleaning plate 38, at least two cleaning nozzles 39 fixedly arranged on the left side of the hollow cleaning plate 38, and a water storage tank 40 located outside the cleaning box 34, the water storage tank 40 is fixedly arranged on the workbench 1, the water storage tank 40 and the hollow cleaning plate 38 are connected through a cleaning pipe 41, and a water pump 42 is fixedly arranged on the cleaning pipe 41, and the water pump 42 is fixedly arranged on the workbench 1. When it is necessary to clean the mixing rod and the mixing blades, the lower end of the mixing rod is placed in the hollow rotating cylinder, the upper end of the oil supply cover is in contact with the lower end surface of the cleaning box, and then the water pump is started to rinse the mixing rod through the nozzle, and then the motor is started to drive the mixing rod to rotate, so as to facilitate the cleaning of the mixing rod.

[0026] The present invention is further configured as follows: a moving assembly 43 for driving the oil supply cover 11 to move is provided on the workbench 1 to facilitate the movement of the oil supply cover.

[0027] The present invention is further configured as follows: the moving assembly 43 includes a moving frame 44 fixedly arranged on the workbench 1, a moving slot 45 opened on the moving frame 44, and a left sleeve 46 and a right sleeve 47 movably arranged in the moving slot 45, a screw shaft 48 is rotatably arranged in the moving slot 45, and the screw shaft 48 is rotatably arranged in the left sleeve 46 and the right sleeve 47, a moving motor 49 is fixedly arranged on the moving frame 44, and the output shaft of the moving motor 49 is fixedly connected to the screw shaft 48, and a left lifting cylinder 50 and a right lifting cylinder 51 are fixedly arranged below the left sleeve 46 and the right sleeve 47, respectively, and the movable end of the output end of the left lifting cylinder 50 is movable The piston rods at the output ends of the plug rod and the right lifting cylinder 51 are fixedly connected to the oil supply cover 11. When the mixing rod needs to be cleaned, the screw between the connecting block and the oil supply box is loosened, and then the left lifting cylinder and the right lifting cylinder are started to drive the oil supply cover and the mixing rod to move upward, so that the mixing rod is separated from the outside of the oil supply box. Then the moving motor is started to drive the screw shaft to rotate, and the screw shaft drives the left sleeve and the right sleeve to move, so that the mixing rod is transported to the top of the cleaning box and the lower end of the mixing rod corresponds to the hollow rotating cylinder. Then the left lifting cylinder and the right lifting cylinder are started to drive the mixing rod and the oil supply cover to move downward, so that the mixing rod is located in the cleaning box, which is convenient for cleaning the mixing rod.

[0028] The present invention is further configured as follows: at least two supporting legs 52 fixedly connected to the workbench 1 are provided below the workbench 1 to support the workbench.

[0029] The present invention is further configured as follows: an oil receiving groove 53 is provided on the oil scraper plate 29, an oil receiving box 54 is provided below the oil scraper plate 29, an oil return groove 55 is provided on the bottom plate of the oil scraper plate 29, the oil receiving groove 53 and the oil return groove 55 are connected, the oil return groove 55 is corresponding to the box opening of the oil receiving box 53, a filter plate 56 is fixedly provided in the oil receiving box 53, the oil receiving box 54 and the ink box 9 are fixedly connected by an oil return pipe 60, the oil scraper plate scrapes off the thicker ink on the printing roller, and the scraped ink will be guided by the oil scraper plate to flow into the oil receiving groove, the ink in the oil receiving groove will flow from the oil drum return groove to the oil receiving box, and then the ink in the oil receiving box will flow into the ink box through the oil return pipe, which is convenient for recycling.

[0030] The present invention is further configured as follows: a water outlet 57 is provided on the cleaning box 34, the oil supply box 10 and the workbench 1, and a sealing gasket 66 fixedly connected to the workbench 1 is provided at the water outlet 57. The sealing gasket is fixedly mounted on the workbench by a screw. By opening the water outlet, the discharge of waste water is facilitated, and the sealing gasket is provided to play a sealing role during cleaning and mixing.

[0031] The working principle of the present invention is as follows: since different packaging boxes need to be printed with inks of different thicknesses, the scraper cylinder is started first to drive the scraper plate to move, and the distance between the scraper plate and the printing roller is adjusted. After the adjustment, the printing roller and the rotating rod are driven to rotate by starting the rotating motor respectively to print the packaging box, and then the original liquid is poured into the oil supply box through the liquid inlet hole, and then the motor is started to drive the mixing rod and the mixing blade to rotate to stir the original liquid in the oil supply box. After stirring, the barrier plate is driven downward by starting the oil control cylinder to open the liquid outlet hole to facilitate the replenishment of ink in the ink box. Moreover, when the printing roller rotates, the scraper plate scrapes the oil on the printing roller, and the scraped oil flows into the oil receiving box through the oil return groove, and then flows into the ink box through the oil receiving box for recycling.

[0032] When it is necessary to clean the oil supply box and the mixing rod, loosen the screw between the connecting block and the oil supply box, and then start the left lifting cylinder and the right lifting cylinder to drive the oil supply cover and the mixing rod to move upward, so that the mixing rod is out of the oil supply box, and then start the moving point to drive the screw shaft rod to rotate, and the screw shaft rod drives the left sleeve and the right sleeve to move, and transports the mixing rod to the top of the cleaning box, and the lower end of the mixing rod corresponds to the hollow rotating cylinder, and then start the left lifting cylinder and the right lifting cylinder to drive the mixing rod to move downward, so that the lower end of the mixing rod is located in the hollow of the hollow rotating cylinder, and then start the water pump to spray the water in the water storage tank to the mixing rod through the cleaning nozzle, and then start the motor to drive the mixing rod to rotate, so as to facilitate the cleaning of the mixing rod. Since the oil supply cover and the mixing rod are moved out of the oil supply box, it is also convenient to manually clean the oil supply box (the liquid outlet is blocked by a baffle during cleaning). After cleaning the oil supply box and the mixing rod, remove the sealing gaskets respectively to facilitate the discharge of waste water.

[0033] The above description is only a preferred embodiment of the present invention, and the present invention is not limited to the above implementation mode. Any modification, alteration or equivalent substitution made by a person skilled in the art based on the above description shall fall within the scope of protection of the present invention.

Claims

1. A printing device for a packaging box, comprising a workbench, characterized in that: The workbench is provided with a printing component, an oil supply component, a cleaning component and a filtering component located between the printing component and the oil supply component, the printing component comprises a frame fixedly arranged on the workbench, a rotating roller and a printing roller rotatably arranged on the frame, an ink box is arranged below the printing roller, and the lower part of the printing roller is located in the ink box, the oil supply component comprises an oil supply box body fixedly arranged on the workbench, an oil supply cover located above the oil supply box body, a mixing rod is rotatably arranged in the oil supply box body, a motor is fixedly arranged above the oil supply cover, the output shaft of the motor is fixedly connected to the mixing rod, at least two mixing blades fixedly connected to the mixing rod are arranged on the circumferential outer surface of the mixing rod, a liquid inlet hole is provided on the oil supply cover, and a liquid outlet hole is provided on the right side plate of the oil supply box body, the filtering component comprises a filtering box body fixedly arranged on the workbench and a filter screen plate fixedly arranged on the filtering box body, and a liquid inlet and an outlet are provided on the filtering box body and a tube connecting the discharging opening of the pump with a plug in the forward end of the crank case, said tube having a check valve in it and said adjusting base is connected with the pump end, and said former tube which connects the pump to the oil drain plug, and said former tube which connects the pump to the oil drain plug, and said former tube which connects the pump to the oil drain plug, and said former tube which connects the pump to the oil drain plug, and said former tube which connects the pump to the oil drain plug, and said former 2. A printing device for a packaging box according to claim 1, characterized in that: The oil supply cap and the oil supply box are connected via a connecting assembly, which includes a connecting groove opened on the oil supply box and a connecting block fixedly arranged under the oil supply cap. The connecting block is located in the connecting groove, and the connecting block and the oil supply box are fixedly connected via a screw.

3. A printing device for a packaging box according to claim 2, characterized in that: The cleaning assembly includes a cleaning box fixedly arranged on a workbench, a hollow rotating cylinder rotatably arranged in the cleaning box, and a left cleaning device and a right cleaning device fixedly arranged in the cleaning box, the hollow rotating cylinder is located between the left cleaning assembly and the right cleaning assembly, the left cleaning assembly and the right cleaning assembly are symmetrically arranged in structure, the right cleaning assembly includes a hollow cleaning plate fixedly arranged in the cleaning box, at least two cleaning nozzles fixedly arranged on the left side of the hollow cleaning plate, and a water storage tank located outside the cleaning box, the water storage tank is fixedly arranged on the workbench, the water storage tank is connected to the hollow cleaning plate by a cleaning pipe, a water pump is fixedly arranged on the cleaning pipe, and the water pump is fixedly arranged on the workbench.

4. A printing device for packaging box according to claim 3, characterized in that: The workbench is provided with a moving component for driving the oil supply cover to move.

5. A printing device for packaging box according to claim 4, characterized in that: The moving assembly includes a moving frame fixedly arranged on the workbench, a moving groove opened on the moving frame, and a left sleeve and a right sleeve movably arranged in the moving groove, a screw shaft is rotatably arranged in the moving groove, and the screw shaft is rotatably arranged in the left sleeve and the right sleeve, a moving motor is fixedly arranged on the moving frame, and the output shaft of the moving motor is fixedly connected to the screw shaft rod, and a left lifting cylinder and a right lifting cylinder are fixedly arranged below the left sleeve and the right sleeve respectively, and the piston rod at the output end of the left lifting cylinder and the piston rod at the output end of the right lifting cylinder are both fixedly connected to the oil supply cover.

6. A printing device for packaging box according to claim 5, characterized in that: At least two supporting feet fixedly connected to the workbench are arranged below the workbench.

7. A printing device for packaging box according to claim 6, characterized in that: An oil receiving groove is provided on the oil scraper plate, an oil receiving box is provided under the oil scraper plate, an oil return groove is provided on the bottom plate of the oil scraper plate, the oil receiving groove and the oil return groove are connected, the oil return groove is corresponding to the box opening of the oil receiving box, a filter plate is fixedly provided in the oil receiving box, and the oil receiving box and the ink box are fixedly connected through an oil return pipe.

8. A printing device for packaging box according to claim 7, characterized in that: The cleaning box, the oil supply box and the workbench are all provided with water outlets, and the water outlets are provided with sealing pads fixedly connected to the workbench.

Citation Information

Patent Citations

  • Printing device for packaging box

    CN212289165U