A printing automatic ink releasing system

Abstract

The utility model discloses a kind of printing automatic ink release systems, including PLC, ink roller, printing roller, first ink box, second ink box and heating coil, ink roller and printing roller are arranged in first ink box and mutually close, the first ink box is divided into three regions, is ink groove area, dye roller area and recovery area respectively, ink groove area is provided with baffle, ink in ink groove area flows to dye roller area by baffle bottom gap, through the rotation of ink roller, the ink contaminated is driven to recovery area and is recycled with flow. The printing automatic ink release system, through the zoned design to first ink box, it is divided into ink groove area, dye roller area and recovery area, under the rotation effect of ink roller, ink is sent to recovery area, and secondary contact and pollution can be avoided, through the mode, the circulation of ink can be accelerated, avoid ink temperature loss and precipitation, can effectively reduce ink pollution, improve ink quality.

Description

Technical Field

[0001] This utility model relates to the field of printing equipment technology, specifically an automatic ink dispensing system for a printing press. Background Technology

[0002] A printing press is a machine for printing text and images. A modern printing press generally consists of mechanisms for mounting the printing plate, inking, printing, and paper feeding (including folding). Its working principle is as follows: First, the text and images to be printed are made into a printing plate, which is then mounted on the printing press. Then, ink is applied to the areas on the printing plate containing the text and images by hand or by the printing press. The ink is then transferred directly or indirectly to paper or other printing substrates (such as textiles, metal plates, plastics, leather, wood, glass, and ceramics), thereby reproducing printed materials identical to the printing plate. The invention and development of the printing press has played an important role in the dissemination of human civilization and culture.

[0003] Printing presses are equipped with ink supply systems. The ink required for printing is usually supplied by an ink pump. An ink pump is set on one side of each printing zone to deliver ink to the ink cartridge. According to an automatic ink supply system for printing presses proposed in Chinese patent application number "201610698112.8", it can effectively ensure that the system can provide high-quality ink. However, in actual use, it was found that the rotation of the ink roller in the ink cartridge, the internal stirring equipment, heating equipment and vibration equipment all affect the ink flow, resulting in poor ink circulation, affecting ink temperature and ink quality, and thus affecting the printing effect. To address this, the technical solution is improved by changing the structural design and circulation method to improve the ink circulation effect and thus improve ink quality. Utility Model Content

[0004] The purpose of this invention is to provide an automatic ink dispensing system for printing, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] An automatic ink dispensing system for printing includes a PLC, ink rollers, printing rollers, a first ink cartridge, a second ink cartridge, and a heating coil. The first ink cartridge contains an ink roller and a printing roller that are close to each other. The first ink cartridge is divided into three areas: an ink trough area, a dyeing roller area, and a recycling area. The ink trough area is equipped with a baffle. The ink in the ink trough area flows to the dyeing roller area through the gap at the bottom of the baffle. The rotation of the ink roller carries the dyed ink to the recycling area for recycling.

[0007] As a further embodiment of this utility model: the bottom of the recycling area is connected to the recycling tank via a recycling pump, the ink output end of the recycling tank is connected to the second ink cartridge, the ink in the second ink cartridge is connected to the top of the first ink cartridge via an ink supply line, and the second ink cartridge is provided with an ink replenishment line.

[0008] The upper part of the recycling tank is the filtration chamber, and the lower part is the recycling chamber. The inside of the recycling tank is equipped with a filter screen to separate the filtration chamber and the recycling chamber.

[0009] As a further improvement of this utility model: the recycling tank is equipped with an upwardly extending rinsing pipeline, a return water pipeline and a residual water pipeline, and valves are provided on the ink output end of the recycling tank, the rinsing pipeline, the return water pipeline and the residual water pipeline.

[0010] As a further improvement of this utility model, a delivery pump for conveying ink is installed on the ink supply pipeline.

[0011] As a further embodiment of this utility model: the ink supply pipeline is an aluminum alloy pipeline, and a heating coil is provided on the outside of the ink supply pipeline. Steam is transported in the heating coil. The heating coil is provided with one input pipeline and multiple output pipelines. Valves are provided on the input pipeline and the output pipelines respectively. All multiple output pipelines are connected to a negative pressure pump.

[0012] As a further improvement of this utility model: the ink supply line is provided with a plurality of ink nozzles arranged in a straight line, and valves are respectively installed at the connection points between the ink nozzles and the ink supply line for control.

[0013] As a further improvement of this utility model, an ultrasonic vibrator is provided inside the ink trough area.

[0014] As a further improvement of this utility model: a temperature sensor is provided in the ink tank area, and both the temperature sensor and the valve on the output pipeline are connected to the PLC electrical signal. The PLC controls the opening and closing of the valve on the output pipeline based on the temperature value detected by the temperature sensor.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. This automatic ink dispensing system for printing divides the first ink cartridge into an ink trough area, a dyeing roller area, and a recycling area. The ink is delivered to the recycling area by the rotation of the ink roller, which avoids secondary contact and contamination. This method can accelerate the circulation of ink, prevent ink temperature loss and sedimentation, effectively reduce ink contamination, and improve ink quality.

[0017] 2. This automatic ink dispensing system effectively prevents ink sedimentation by accelerating circulation, thus eliminating the need for stirring. It is equipped with a heating coil to heat the ink circulating into the first ink cartridge, maintaining the ink at an ideal temperature and improving ink and printing quality. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of an automatic ink dispensing system for printing.

[0019] Figure 2 This is a schematic diagram of the structure of the first ink cartridge in an automatic ink dispensing system for printing.

[0020] Figure 3 This is a schematic diagram of the structure of a recycling tank in an automatic ink dispensing system for printing.

[0021] In the diagram: 1. Ink roller; 2. Printing roller; 3. First ink cartridge; 4. Recovery pump; 5. Second ink cartridge; 6. Ink filling line; 7. Transfer pump; 8. Recovery tank; 9. Input line; 10. Output line; 11. Temperature sensor; 12. Ink nozzle; 13. Flushing line; 14. Return water line; 15. Heating coil; 16. Excess water line; 17. Replenishment line; 18. Ink tank area; 19. Baffle; 20. Recovery area; 21. Dyeing roller area; 22. Ultrasonic vibrator; 23. Filter chamber; 24. Recovery chamber; 25. Filter screen. Detailed Implementation

[0022] Please see Figures 1-3 In this embodiment of the present invention, an automatic ink dispensing system for printing includes a PLC, an ink roller 1, a printing roller 2, a first ink cartridge 3, a second ink cartridge 5, and a heating coil 15. The first ink cartridge 3 houses the ink roller 1 and the printing roller 2, which are positioned close together. The first ink cartridge 3 is divided into three areas: an ink trough area 18, a dyeing roller area 21, and a recovery area 20. The ink trough area 18 is equipped with a baffle 19. The ink in the ink trough area 18 flows through the gap at the bottom of the baffle 19 to the dyeing roller area 21. The rotation of the ink roller 1 carries the dyed ink to the recovery area 20 for recycling. When the ink enters the first ink cartridge 3, it first gathers in the ink trough area 18. Under the action of the baffle 19, the ink can only enter the dyeing roller area 21 through the bottom gap. The ink roller 1 rotates to agitate the ink in the dyeing roller area 21 to the recovery area 20. The height of the recovery area 20 is lower than that of the ink roller 1, so the ink rolled out by the ink roller 1 will flow to the recovery area 20. The ink that has been contaminated once will not contaminate the ink roller 1 a second time. In this way, the ink circulation can be accelerated, the ink temperature loss and sedimentation can be avoided, the ink pollution can be effectively reduced, and the ink quality can be improved.

[0023] In a preferred embodiment, the bottom of the recycling zone 20 is connected to the recycling tank 8 via the recycling pump 4, the ink output end of the recycling tank 8 is connected to the second ink cartridge 5, the ink of the second ink cartridge 5 is connected to the top of the first ink cartridge 3 via the ink supply line 6, and the second ink cartridge 5 is provided with an ink replenishment line 17.

[0024] The upper part of the recycling tank 8 is the filter chamber 23, and the lower part of the recycling tank 8 is the recycling chamber 24. The inside of the recycling tank 8 is equipped with a filter screen 25 to separate the filter chamber 23 and the recycling chamber 24. The recycling area 20 is pumped to the filter chamber 23 by the recycling pump 4 to filter out the impurities carried in the recycled ink. The clean ink enters the recycling chamber 24 and enters the second ink cartridge 5 through the ink outlet of the recycling tank 8.

[0025] In a preferred embodiment, the recovery tank 8 is equipped with an upwardly extending flushing pipeline 13, a return water pipeline 14, and a residual water pipeline 16. Valves are installed on the ink output end of the recovery tank 8, the flushing pipeline 13, the return water pipeline 14, and the residual water pipeline 16. During the filtration process, impurities are filtered to the top of the filter screen 25 and need to be cleaned regularly. This application cleans the screen by backwashing. During the cleaning process, the valves at the ink output and input ends of the recovery tank 8 are closed, and the cleaning fluid enters through the flushing pipeline 13. As the liquid level rises, the cleaning fluid also enters the filtration chamber 23 from the recovery chamber 24 and is discharged from the return water pipeline 14. The impurities on the filter screen 25 are discharged with the water flow, thereby achieving the cleaning effect. After cleaning, since the return water pipeline 14 is located at the top, the cleaning fluid inside the recovery tank 8 needs to be drained through the residual water pipeline 16.

[0026] In a preferred embodiment, a delivery pump 7 for delivering ink is installed on the ink supply line 6.

[0027] In a preferred embodiment, the ink supply line 6 is an aluminum alloy line, and a heating coil 15 is provided on the outside of the ink supply line 6. Steam is transported in the heating coil 15. The heating coil 15 is provided with an input line 9 and multiple output lines 10. Valves are provided on the input line 9 and the output lines 10 respectively. All multiple output lines 10 are connected to a negative pressure pump. The temperature of the ink storage and transportation environment usually needs to be maintained at 18-25℃ and the humidity controlled at 40%-60%RH. If the temperature is too high, it will accelerate the evaporation of solvents and cause the ink to thicken. If the humidity is too high, it may affect the drying performance of water-based inks. Therefore, by adding a heating coil 15, the equipment is heated by the heating coil 15, which not only does not affect the circulation of ink, but also makes the heating more uniform and controllable.

[0028] In a preferred embodiment, the ink supply line 6 is provided with a plurality of ink nozzles 12 arranged in a straight line. The connection between the ink nozzles 12 and the ink supply line 6 is respectively provided with valve control. An ultrasonic vibrator 22 is provided inside the ink trough area 18. The ink has a certain viscosity. The ultrasonic vibrator 22 can accelerate the speed of ink spreading, so that it flows quickly and evenly to the dyeing roller area 21.

[0029] In a preferred embodiment, a temperature sensor 11 is installed in the ink tank area 18. The temperature sensor 11 and the valves installed on the output pipeline 10 are both connected to the PLC via electrical signals. The PLC controls the opening and closing of the valves on the output pipeline 10 based on the temperature value detected by the temperature sensor 11. The other end of the input pipeline 9 is connected to a steam generator, which generates high-temperature steam. The steam passes through a heating coil 15 to perform non-contact heat exchange with the ink. The heating coil 15 is installed outside the ink supply pipeline 6, similar to a heating cable. The heating coil 15 has multiple output pipelines 10. By adjusting the valves, the heat exchange time between the steam and the ink is controlled, thereby achieving the purpose of controlling the ink temperature.

[0030] It should be noted that all the above embodiments belong to the same utility model concept, and the descriptions of each embodiment have different focuses. Where the description in a particular embodiment is not detailed, please refer to the description in other embodiments.

[0031] The embodiments described above merely illustrate the implementation of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. An automatic ink dispensing system for printing, comprising a PLC, an ink roller (1), a printing roller (2), a first ink cartridge (3), a second ink cartridge (5), and a heating coil (15), wherein the first ink cartridge (3) contains an ink roller (1) and a printing roller (2) arranged close together, characterized in that, The first ink cartridge (3) is divided into three areas: ink trough area (18), dyeing roller area (21) and recycling area (20). The ink trough area (18) is provided with a baffle (19). The ink in the ink trough area (18) flows to the dyeing roller area (21) through the gap at the bottom of the baffle (19). The ink that has been dyed is carried to the recycling area (20) for recycling by the rotation of the ink roller (1).

2. The automatic ink dispensing system for printing according to claim 1, characterized in that, The bottom of the recycling area (20) is connected to the recycling tank (8) via the recycling pump (4). The ink output end of the recycling tank (8) is connected to the second ink cartridge (5). The ink in the second ink cartridge (5) is connected to the top of the first ink cartridge (3) via the ink supply line (6). The second ink cartridge (5) is equipped with an ink replenishment line (17). The upper part of the recycling tank (8) is the filter chamber (23), and the lower part of the recycling tank (8) is the recycling chamber (24). The inside of the recycling tank (8) is equipped with a filter screen (25) to separate the filter chamber (23) and the recycling chamber (24).

3. The automatic ink dispensing system for printing according to claim 2, characterized in that, The recycling tank (8) is equipped with an upward-extending rinsing pipeline (13), a return water pipeline (14), and a residual water pipeline (16). Valves are provided on the ink output end, rinsing pipeline (13), return water pipeline (14), and residual water pipeline (16) of the recycling tank (8).

4. The automatic ink dispensing system for printing according to claim 2, characterized in that, The ink supply line (6) is equipped with a delivery pump (7) for conveying ink.

5. An automatic ink dispensing system for printing according to claim 2 or 4, characterized in that, The ink supply line (6) is an aluminum alloy line. A heating coil (15) is provided on the outside of the ink supply line (6). Steam is transported in the heating coil (15). The heating coil (15) is provided with an input line (9) and multiple output lines (10). Valves are provided on the input line (9) and the output lines (10). The multiple output lines (10) are all connected to the negative pressure pump.

6. The automatic ink dispensing system for printing according to claim 2, characterized in that, The ink supply line (6) is provided with a plurality of ink nozzles (12) arranged in a straight line, and valves are respectively provided at the connection between the ink nozzles (12) and the ink supply line (6) for control.

7. The automatic ink dispensing system for printing according to claim 1, characterized in that, An ultrasonic vibrator (22) is installed inside the ink trough area (18).

8. The automatic ink dispensing system for printing according to claim 5, characterized in that, A temperature sensor (11) is installed in the ink tank area (18). The temperature sensor (11) and the valve installed on the output pipeline (10) are both connected to the PLC electrical signal. The PLC controls the opening and closing of the valve on the output pipeline (10) by the temperature value detected by the temperature sensor (11).

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