Advertisement printing equipment

Abstract

The invention is applicable to the field of advertisement processing, and provides an advertisement printing device, comprising an ink roller and a printing device having the ink roller, wherein the ink roller comprises an inner roller and an outer roller; there is a gap between the inner roller and the outer roller; the inner roller and the outer roller both comprise a plurality of slots arranged at intervals; the inner roller and the outer roller are both connected to a power source for driving the rotation thereof, and the rotation directions thereof are opposite; a heating cylinder is arranged in the inner roller, a heat source and a through hole are arranged on the heating cylinder, and the inner roller and the outer roller are both made of heat-conducting material; the heating cylinder can inject ink into the interior thereof from the outside, and the invention can reduce the impact force when the ink is thrown out by the ink roller, and has a better effect on drying the ink.

Description

Technical Field

[0001] The invention relates to the field of advertisement processing, and in particular to a device for advertisement printing. Background Art

[0002] During the printing process, the ink roller needs to be dipped in ink, and then rolled onto the printed matter passing under the ink roller. During the rolling process, since the ink roller is in a high-speed rotating state, part of the ink on the ink roller will be thrown out along the tangential direction of rotation. In severe cases, the ink will be thrown onto the surface of the printed matter to form printing waste.

[0003] After the ink is printed on the paper, it is necessary to use a high-temperature airflow to dry the ink. If the drying effect of the high-temperature airflow is not good enough, the ink on the paper will easily be smeared. In addition, if the wind speed of the high-temperature airflow is high, it will easily cause the paper to shift after blowing towards it.

[0004] The invention patent with application number CN201811020913.4 provides an inking roller device capable of automatically pumping ink for printing production. The invention places ink in the ink roller and can automatically pump ink from the ink tank to the ink roller during printing production, but the invention does not solve the above two problems. Summary of the invention

[0005] The invention provides an advertisement printing device, aiming to provide a processing device which can reduce the impact force when ink is thrown out by an ink roller and has a better drying effect on the ink.

[0006] To achieve the above object, the present invention adopts the following technical solutions:

[0007] An advertisement printing device comprises an ink roller and a printing device having the ink roller, wherein the ink roller comprises an inner roller and an outer roller; there is a gap between the inner roller and the outer roller; the inner roller and the outer roller both comprise a plurality of slots arranged at intervals; the inner roller and the outer roller are both connected to a power source for driving them to rotate, and the directions of their rotation are opposite; a heating cylinder is arranged in the inner roller, a heat source and a through hole are arranged on the heating cylinder, and the inner roller and the outer roller are both made of heat-conducting material; the heating cylinder can inject ink into the interior thereof from the outside.

[0008] Furthermore, the heating cylinder is connected to a power source for driving the heating cylinder to rotate.

[0009] Furthermore, the inner walls of the inner and outer rollers are provided with ribs extending along the rotation direction thereof.

[0010] Furthermore, a permeable membrane is wound around the outer wall of the outer roller.

[0011] Furthermore, the end surface and the side surface of the outer roller are fixedly connected by bolts.

[0012] Furthermore, the heating cylinder and the inner roller are both connected to a rotary joint, the rotary joint is connected to an ink pump, and the ink pump is connected to an ink tank through a conduit.

[0013] Furthermore, the ink pump includes a shell, a piston, a push rod and a spring. The piston is movably connected to the inner wall of the shell. A push rod is connected to one side of the piston, and the push rod passes through the shell. A spring is provided on the other end surface of the piston, and the spring is located between the piston and the inner wall of the shell. A driving block corresponding to the position of the push rod is provided on the outer roller, and the ink pump is connected to the conduit and the rotary joint through a one-way valve respectively.

[0014] Furthermore, the power source is a motor, and the printing device includes a support rod, which is rotatably connected to an output shaft of the motor via a bearing.

[0015] Furthermore, a groove extending spirally along the radial direction is provided on the inner wall of the heating cylinder.

[0016] The beneficial effects of the present invention are as follows: the inner and outer rollers both include a plurality of slots arranged at intervals, and when ink flows from the inner roller position through the slots and gaps to the outer roller position, due to the existence of a centripetal force in the ink, the ink will fly out from the slots along the tangent direction and hit the inner side of the outer roller, and will be blocked by the outer roller to weaken its impact force, and at the same time, since the rotation direction of the outer roller is opposite to that of the inner roller, when the ink flows out along the slots of the outer roller driven by the outer roller, the impact force of the ink itself will be further weakened, so as to avoid the ink having a strong impact force and being thrown onto the paper to form printed waste; the inner and outer rollers are both made of heat-conducting materials, and a heat source is arranged in the inner roller to heat the inner and outer rollers, and when the ink flows on the inner and outer rollers, the heated inner and outer rollers can preheat the ink, so as to make the subsequent drying process after the ink is printed on the paper more effective. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is the front view of the present invention;

[0018] Figure 2 It is a side view of the present invention;

[0019] Figure 3 It is a structural schematic diagram of the ink pump part;

[0020] Figure 4 It is a structural schematic diagram of the ink roller part;

[0021] Figure 5 It is a side view schematic diagram of the ink roller when it is partially rotating;

[0022] Figure 6 It is a structural schematic diagram of the inner roller part;

[0023] Figure 7 It is a schematic diagram of the heating tube part.

[0024] In the figure: 1. ink roller; 2. inner roller; 3. outer roller; 4. slot; 5. power source; 6. heating cylinder; 7. heat source; 8. through hole; 9. rib; 10. permeable membrane; 11. bolt; 12. rotary joint; 13. ink pump; 14. ink tank; 15. housing; 16. piston; 17. push rod; 18. spring; 19. support rod; 20. groove; 21. one-way valve; 22. drive block. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the following will be described clearly and completely in combination with the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are partial embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work belong to the protection scope of the present invention.

[0026] like Figure 1-Figure 7As shown, an advertising printing device includes an ink roller 1 and a printing device having the ink roller 1, wherein the ink roller 1 includes an inner roller 2 and an outer roller 3; the inner roller 2 is arranged in the outer roller 3 and there is a gap between the inner roller 2 and the outer roller 3; the inner roller 2 and the outer roller 3 both include a plurality of slots 4 arranged at intervals, and the slots 4 and the gaps are used to allow the ink to flow from the inner roller 2 to the outer roller 3 and then flow out from the slots 4 of the outer roller 3; the inner roller 2 and the outer roller 3 are both connected to a power source 5 that drives them to rotate and their rotation directions are opposite. When the ink flows from the inner roller 2 to the outer roller 3 through the slots 4 and the gaps, the inner roller 2 carries the ink. The rotation of the dynamic ink will create a centripetal force on the ink, and the ink will fly out from the slot 4 along the tangential direction and hit the inner side of the outer roller 3. The ink will weaken its impact force due to being blocked by the outer roller 3. At the same time, since the rotation direction of the outer roller 3 is opposite to that of the inner roller 2, the ink will flow out along the slot 4 of the outer roller 3 driven by the outer roller 3. The impact force of the ink itself will be further weakened to prevent the ink from splashing onto the copy paper after passing through the permeable membrane 10 on the outer side of the outer roller 3 due to its strong impact force, thereby blurring the content on the copy paper and causing copy waste; a heating cylinder is provided in the inner roller 2. 6. The heating cylinder 6 is provided with a heat source 7 and a through hole 8. In this embodiment, the heat source 7 is an electric heating tube with its own power supply. After power is turned on, the surface temperature of the electric heating tube is preferably 40 degrees Celsius to 50 degrees Celsius; the through holes 8 are distributed on the surface of the heating cylinder 6 to allow the ink in the heating cylinder 6 to flow out; the inner and outer rollers 3 are made of heat-conducting materials. Under the influence of the heat source 7, the surface temperature of the inner and outer rollers 3 rises to preheat the ink flowing on the inner and outer rollers 3. The preferred storage temperature condition of printing ink is generally between 20 degrees Celsius and 30 degrees Celsius. When the ink is between 40 degrees Celsius and 50 degrees Celsius, the surface temperature of the inner and outer rollers 3 is increased. In an environment, the ink will be preheated but will not be dried quickly. After the ink is printed on the paper, it is necessary to use a high-temperature airflow to immediately dry the ink on the paper. However, if the airflow speed is too high, the paper may be offset, resulting in crooked printing. Preheating the ink in the ink roller 1 in advance can make the drying effect better, and there is no need to adjust a high-temperature airflow with a high wind speed for drying. The heating cylinder 6 can inject ink into the interior thereof from the outside. The closer the through holes 8 on the heating cylinder 6 are to the position where the ink is injected, the fewer the through holes 8 are. This arrangement is to make the ink flowing out of both ends of the heating cylinder 6 roughly equal.

[0027] Furthermore, the heating cylinder 6 is connected to a power source 5 that drives it to rotate, and the power source 5 is a motor. The heating cylinder 6 and the inner roller 2 are connected to the same motor. When the motor rotates, the ink in the heating cylinder 6 is driven by the motor to be thrown out around the inner wall of the heating cylinder 6 and splashed onto the inner roller 2 through the through hole 8.

[0028] Furthermore, the inner walls of the inner and outer rollers 3 are provided with ribs 9 extending along the rotation direction thereof, and the raised portions of the ribs 9 form channels for the ink to converge, so that the ink flows out of the inner and outer rollers 3 along the ribs 9 on the side walls of the inner and outer rollers 3 at a slower speed, thereby preheating the ink while reducing the impact force of the ink.

[0029] Furthermore, a permeable membrane 10 is wound around the outer wall of the outer roller 3 , and the ink flowing out of the outer roller 3 is printed onto the paper through the permeable membrane 10 .

[0030] Furthermore, the end face and the side face of the outer roller 3 are fixedly connected by bolts 11. The end face of the outer roller 3 can be opened by removing the bolts 11, thereby facilitating cleaning of the ink accumulated on the inner and outer rollers 3 and the marks formed after the ink dries.

[0031] Furthermore, the heating tube 6 and the inner roller 2 are both connected to a rotary joint 12, the rotary joint 12 is connected to an ink pump 13, the ink pump 13 is connected to an ink tank 14 through a conduit, the ink pump 13 pumps ink from the ink tank 14 to the rotary joint 12, and the ink in the rotary joint 12 then flows into the heating tube 6, the rotary joint 12 is connected to the output end of the motor, and the motor drives the heating tube 6 and the inner roller 2 to rotate synchronously through the rotary joint 12.

[0032] Furthermore, the ink pump 13 includes a housing 15, a piston 16, a push rod 17 and a spring 18. The piston 16 is movably connected to the inner wall of the housing 15. The push rod 17 is connected to one side of the piston 16. The push rod 17 passes through the housing 15. The spring 18 is arranged on the other end of the piston 16. The spring 18 is located between the piston 16 and the inner wall of the housing 15. A driving block 22 corresponding to the position of the push rod 17 is arranged on the outer roller 3. The ink pump 13 is connected to the conduit and the rotary joint 12 through a one-way valve 21. When As the driving block 22 rotates with the outer roller 3, it continuously touches the push rod 17, thereby pushing the push rod 17. The push rod 17 drives the piston 16 inside the outer shell 15 to move together and compress the spring 18. When the driving block 22 rotates, the spring 18 pushes the piston 16 away. Since the ink pump 13, the ink tank 14 and the rotary joint 12 are all connected, as the piston 16 moves inside the outer shell 15, with the action of the one-way valve 21, the ink can be drawn from the ink tank 14 and then sent to the rotary joint 12.

[0033] Furthermore, the power source 5 is a motor, and the printing device includes a support rod 19, which is rotatably connected to the motor output shaft through a bearing.

[0034] Furthermore, a groove 20 extending spirally in a radial direction is provided on the inner wall of the heating tube 6 , and the groove 20 is used to converge the ink so that the ink can be thrown to the end of the heating tube 6 away from the ink inlet more easily.

[0035] The specific working principle of the present invention is as follows: the paper is arranged below the outer roller 3, and the outer roller 3 rotates under the action of the motor, thereby driving the driving block 22 to continuously touch the push rod 17, thereby pushing the push rod 17, and the push rod 17 drives the piston 16 inside the housing 15 to move together and compress the spring 18. When the driving block 22 rotates, the spring 18 pushes the piston 16 away. Since the ink pump 13, the ink tank 14 and the rotary joint 12 are all connected, as the piston 16 moves inside the housing 15, the one-way valve 21 cooperates. The ink can be drawn from the ink tank 14 and then sent to the rotary joint 12; the ink in the rotary joint 12 flows into the heating cylinder 6, and the ink in the heating cylinder 6 is thrown out around the inner wall of the heating cylinder 6 under the drive of the motor, and splashed onto the inner roller 2 through the through hole 8. When the ink flows from the inner roller 2 to the outer roller 3 through the slot 4 and the gap, the inner roller 2 drives the ink to rotate, which will cause a centripetal force on the ink. The ink will fly out from the slot 4 along the tangential direction and hit the inner side of the outer roller 3. 3 will weaken its impact force. At the same time, since the rotation direction of the outer roller 3 is opposite to that of the inner roller 2, when the ink flows out along the slot 4 of the outer roller 3 driven by the outer roller 3, the impact force of the ink itself will be further weakened to prevent the ink from splashing onto the copy paper after passing through the permeable membrane 10 outside the outer roller 3 due to its strong impact force, thereby causing the content on the copy paper to be blurred and resulting in copy waste; an electric heating tube is provided on the heating cylinder 6. After power is turned on, the surface temperature of the electric heating tube is preferably 40 degrees Celsius to 50 degrees Celsius The inner and outer rollers 3 are made of heat-conducting materials. Under the influence of the heat source 7, the surfaces of the inner and outer rollers 3 are heated to preheat the ink flowing on the inner and outer rollers 3 (the preferred storage temperature of printing ink is generally between 20 degrees Celsius and 30 degrees Celsius. When the ink is in an environment between 40 degrees Celsius and 50 degrees Celsius, the ink will be preheated but will not be dried quickly), so that the ink will be dried faster and more effectively when it is subsequently dried by the high-temperature airflow. Finally, the ink is printed onto paper through the permeable membrane 10 and waits for drying.

[0036] It should be understood that those skilled in the art can make improvements or changes based on the above description, and all these improvements and changes should fall within the scope of protection of the appended claims of the present invention.

Claims

1. An advertisement printing device, comprising an ink roller and a printing device having the ink roller, characterized in that: The ink roller includes an inner roller and an outer roller; there is a gap between the inner and outer rollers; the inner and outer rollers each include a plurality of slots arranged at intervals; the inner and outer rollers are both connected to a power source for driving them to rotate and their rotation directions are opposite; a heating cylinder is arranged in the inner roller, a heat source and a through hole are provided on the heating cylinder, and the inner and outer rollers are both made of heat-conducting materials; the heating cylinder can inject ink into the interior thereof from the outside.

2. The advertising printing device according to claim 1, characterized in that: The heating cylinder is connected to a power source for driving the heating cylinder to rotate.

3. The advertising printing device according to claim 1, characterized in that: The inner walls of the inner and outer rollers are both provided with ribs extending along the rotation direction thereof.

4. The advertising printing device according to claim 1, characterized in that: A permeable membrane is arranged on the outer wall of the outer roller.

5. The advertising printing device according to claim 1, characterized in that: The end surface and the side surface of the outer roller are fixedly connected by bolts.

6. The device for advertising printing according to claim 1, characterized in that: The heating cylinder and the inner roller are both connected to a rotary joint, the rotary joint is connected to an ink pump, and the ink pump is connected to an ink tank through a conduit.

7. The device for advertising printing according to claim 6, characterized in that: The ink pump includes a shell, a piston, a push rod and a spring. The piston is movably connected to the inner wall of the shell. A push rod is connected to one side of the piston. The push rod passes through the shell. A spring is provided on the other end surface of the piston. The spring is located between the piston and the inner wall of the shell. A driving block corresponding to the position of the push rod is provided on the outer roller. The ink pump is connected to the conduit and the rotary joint through a one-way valve.

8. The device for advertising printing according to claim 1, characterized in that: The power source is a motor, and the printing device comprises a support rod, which is rotatably connected to the motor output shaft through a bearing.

9. The advertising printing device according to claim 1, characterized in that: The inner wall of the heating cylinder is provided with a groove which spirally extends along the radial direction thereof.

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