Printing ink cleaning device of photogravure press

Abstract

The utility model discloses a printing ink cleaning device of a photogravure press, which relates to the technical field of photogravure printing and comprises a moving frame, a clear water tank is mounted on the right side of the moving frame close to the bottom, a water pumping pipe is arranged at the top of the clear water tank and attached to the edge, and a water pump is arranged at the front end of the water pumping pipe. A cleaning frame is arranged on the side face, close to the top, of the movable frame, a water distribution pipe is arranged on the top, close to the front face, of the cleaning frame, and multiple nozzles are arranged on the front face of the water distribution pipe. The water collecting disc is inserted between the printing roller and the ink box, the wiping roller is attached to the printing roller, the water pump pumps water from the clean water tank and sprays the water to the printing roller through the water distribution pipe and the spray head to clean the printing roller, the printing roller can be directly cleaned on a printing machine without being detached, and the cleaned printing roller can directly continue color changing printing. Therefore, the trouble of mounting after dismounting is avoided, and the working hours of the whole working procedure are saved.

Description

Technical Field

[0001] This utility model belongs to the field of gravure printing technology, specifically, it relates to an ink cleaning device for a gravure printing machine. Background Technology

[0002] Gravure printing involves coating the entire surface of a gravure cylinder with ink, then using a doctor blade to remove the ink from the blank areas outside the recesses, leaving only the ink in the image cells. Under pressure, the ink is then transferred to the substrate. When the ink or the gravure cylinder needs to be replaced, the ink on the cylinder must be thoroughly cleaned. Because the surface of the gravure cylinder is covered with recesses for the image, cleaning is very troublesome, and manual cleaning is now the most common method.

[0003] Chinese patent CN218535996U discloses a cleaning device for printing rollers, including a main body, multiple support columns on the top of the main body, and a connecting column on the top of the support columns. The connecting column houses the printing roller, a support plate is mounted on one side wall of the connecting column, a motor is mounted on the top of the support plate, an extension rod is mounted on the top of the connecting column, a cavity is provided inside the support column, a connecting pipe is mounted on the top of the extension rod, a water inlet pipe is mounted on the top of the connecting pipe, a water spray pipe is mounted on the connecting pipe, and a drainage groove is mounted at the bottom of the water spray pipe. The aforementioned prior art requires removing the printing roller from the printing machine and installing it on the cleaning device. After cleaning, the roller is either stored separately or reinstalled back onto the printing machine, adding a corresponding installation and disassembly step, thus wasting time.

[0004] In view of this, this utility model is proposed. Utility Model Content

[0005] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide an ink cleaning device for a gravure printing machine, which solves the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, the basic concept of the technical solution adopted by this utility model is as follows:

[0007] An ink cleaning device for a gravure printing machine includes: a movable frame, characterized in that a clean water tank is installed near the bottom right side of the movable frame, a wastewater tank is installed near the bottom left side of the movable frame, a water pump is provided at the top edge of the clean water tank, a water pump is provided at the front end of the water pump, a connecting pipe is provided at the top of the water pump, a cleaning frame is provided on the side of the movable frame near the top, a water collection tray is provided below the cleaning frame, multiple sets of wiping rollers are provided at the front end of the cleaning frame, a water distribution pipe is provided near the front of the top of the cleaning frame, multiple sets of nozzles are provided on the front of the water distribution pipe, a water box is provided on the back of the water distribution pipe, a connecting pipe is installed on one side of the water box, and a drain hole is opened at the top of the water collection tray near the wastewater tank, a collection pipe is provided at the bottom of the drain hole.

[0008] Optionally, an extension rod is provided on the front of the water collection tray near both sides, and an extension plate is provided on the top of the water collection tray near the front. Mounting rings are fixedly connected to both ends of the extension plate near the front, and the extension rod passes through the center of the mounting ring.

[0009] Optionally, a sealing gasket is provided on the top of the water collection tray near the bottom of the front-facing extension plate.

[0010] Optionally, a water collection groove is formed on the surface of the water collection tray.

[0011] Optionally, the mobile frame is equipped with casters at the bottom and a handle is provided on the back of the mobile frame near the top.

[0012] Optionally, a cleaning towel is wound around the wiping roller.

[0013] By adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art. Of course, any product implementing the present invention does not necessarily need to achieve all of the following advantages at the same time:

[0014] 1. The ink cleaning device of this gravure printing machine lifts the printing roller that needs cleaning off the ink cartridge on the printing machine, pushes the moving frame to insert the water collection tray between the printing roller and the ink cartridge, and the wiping roller is in contact with the printing roller. While the printing roller rotates, the water pump draws water from the clean water tank and sprays it onto the printing roller through the water distribution pipe and nozzle. The cleaning cloth on the wiping roller wipes away the ink, thus cleaning the printing roller. The wastewater is recycled to the wastewater tank through the drain hole. This allows the printing roller to be cleaned directly on the printing machine without disassembly. The cleaned printing roller can be directly used for color printing or placed on the preparation rack for temporary storage, eliminating the trouble of disassembly and reinstallation and saving overall process time.

[0015] 2. The ink cleaning device of this gravure printing machine expands the water collection area of ​​the water collection tray by moving the extension plate on the water collection tray forward, so that water can be collected under the entire printing roller. This allows the device to fit the printing roller of any diameter for cleaning and avoids the cleaning water being thrown out.

[0016] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings. Attached Figure Description

[0017] The accompanying drawings described below are merely some embodiments. Those skilled in the art can obtain other drawings based on these drawings without any creative effort.

[0018] In the picture:

[0019] Figure 1 This is a front view of the structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the bottom of the structure of this utility model;

[0021] Figure 3 This is a top view of the structure of this utility model.

[0022] The attached diagram lists the components represented by each number as follows:

[0023] 1. Movable frame; 101. Casters; 102. Handle; 2. Clean water tank; 3. Waste water tank; 4. Pump pipe; 5. Water pump; 6. Connecting pipe; 7. Water collection tray; 701. Extension rod; 702. Water collection trough; 703. Sealing gasket; 8. Extension plate; 801. Mounting ring; 9. Cleaning frame; 10. Wiping roller; 11. Water box; 12. Water distribution pipe; 1201. Nozzle; 13. Drain hole; 14. Collection pipe.

[0024] It should be noted that these accompanying drawings and textual descriptions are not intended to limit the scope of the present invention in any way, but rather to illustrate the concept of the present invention to those skilled in the art by referring to specific embodiments. Detailed Implementation

[0025] The present invention will now be described in further detail with reference to the accompanying drawings.

[0026] Please see Figure 1-3 As shown, this embodiment provides an ink cleaning device for a gravure printing machine, including: a movable frame 1.

[0027] like Figure 1-3As shown, in this embodiment, a clean water tank 2 is installed near the bottom right side of the mobile frame 1, and a wastewater tank 3 is installed near the bottom left side of the mobile frame 1. A water suction pipe 4 is installed at the top edge of the clean water tank 2, and a water pump 5 is installed at the front end of the water suction pipe 4. A connecting pipe 6 is installed at the top of the water pump 5. A cleaning frame 9 is installed on the side of the mobile frame 1 near the top, and a water collection tray 7 is installed below the cleaning frame 9. Multiple sets of wiping rollers 10 are installed at the front end of the cleaning frame 9. A water distribution pipe 12 is installed near the front of the top of the cleaning frame 9, and multiple sets of spray nozzles 1201 are installed on the front of the water distribution pipe 12. A water box 11 is installed on the back of the water distribution pipe 12, and a connecting pipe 6 is installed on one side of the water box 11. A drain hole 13 is opened at the top of the water collection tray 7 near the wastewater tank 3, and a collection pipe 14 is installed at the bottom of the drain hole 13; wherein, printing The printing roller on the brushing machine adheres to the ink cartridge and rotates, transferring the ink from the cartridge to the printing plate and then onto the surface of the printed material. For cleaning, the printing roller is lifted away from the ink cartridge, and the moving frame 1 is pushed to insert the water collection tray 7 into the gap between the printing roller and the ink cartridge. The wiping roller 10 is then placed against the printing roller. The water pump 5 is activated to draw water from the clean water tank 2, which is then injected into the water box 11 through the connecting pipe 6. The water box 11 then pressurizes the water and injects it into the water distribution pipe 12. Multiple nozzles 1201 on the water distribution pipe 12 are aimed above the wiping roller 10, rinsing the printing roller and diluting the ink adhering to it. The wiping roller 10 then wiping the printing roller completes the cleaning process. The wastewater from rinsing flows from the drain hole 13 in the upper left corner of the water collection tray 7 into the wastewater tank 3 through the collection pipe 14 for collection.

[0028] like Figure 1-3 As shown, in this embodiment, the water collection tray 7 has extension rods 701 near both sides on the front side, and an extension plate 8 is provided above the water collection tray 7 near the front side. Mounting rings 801 are fixedly connected to both ends of the extension plate 8 near the front side, and the extension rods 701 pass through the center of the mounting rings 801. For some printing rollers with larger radii, the distance from the front end of the water collection tray 7 to the wiping roller 10 is fixed, which will cause the water collection tray 7 below to not be able to completely catch the water flowing down from the printing roller after the wiping roller 10 contacts the printing roller. The extension plate 8 is sleeved on the extension rods 701 through the mounting rings 801 at both ends, and can be pulled forward to expand the water-catching area of ​​the water collection tray 7. The water inside the extension plate 8 flows into the water collection tray 7 and finally flows into the sewage tank 3 through the drain outlet 13.

[0029] like Figure 2 As shown, in this embodiment, a sealing gasket 703 is provided on the top of the water collection tray 7 near the bottom of the front-facing extension plate 8; wherein, the sealing gasket 703 is located at the edge of the water collection tray 7, and is attached to the extension plate 8 and the water collection tray 7 from top to bottom to prevent water flowing down from the printing roller from flowing out from the front end of the water collection tray 7, ensuring that all wastewater can be recycled.

[0030] like Figure 3As shown, the surface of the water collection tray 7 in this embodiment is provided with a water collection trough 702; wherein, the water collection trough 702 has multiple troughs in both the longitudinal and transverse directions and is interconnected until it converges at the drain hole 13 in the upper left corner, so that the sewage flows out from there and guides the flow of sewage.

[0031] like Figure 1 , 2 As shown, the bottom of the movable frame 1 in this embodiment is provided with casters 101, and the back of the movable frame 1 is provided with a handle 102 near the top; wherein, the movable frame 1 is moved by the bottom casters 101 to adjust the lateral position of the wiping roller 10 on the corresponding printing roller, and the operator holds the handle 102 to adjust the position of the movable frame 1.

[0032] like Figure 1 , 2 As shown, the wiping roller 10 in this embodiment is wrapped with a cleaning cloth; wherein, the cleaning cloth contacts the printing roller to wipe the ink on the printing roller, and the cleaning cloth absorbs the ink embedded in the groove of the printing roller, and cleans some gaps, so that the printing roller is cleaned more thoroughly. The cleaning cloth can be washed and replaced after multiple uses to achieve the best cleaning effect.

[0033] Working principle: The clean water tank 2 is filled with pre-mixed cleaning water for the printing roller. The printing roller is lifted upwards by the printing press to remove it from the ink cartridge. The operator adjusts the position of the entire moving frame 1 by holding the handle 102 and rotating the bottom casters 101, so that the wiping roller 10 is in contact with the printing roller. The water collection tray 7 is inserted between the printing roller and the ink cartridge. The extension plate 8 is pulled forward and its position on the extension rod 701 is adjusted. The water pump 5 is started to draw water from the clean water tank 2 through the water pumping pipe 4, and then the water is discharged through the connecting pipe 6 connected to the water box 11. The water is delivered to the water box 11, which pressurizes and injects it into the water distribution pipe 12. The water is then sprayed onto the wiping roller 10 through the nozzle 1201. The printing roller is then started and rotates clockwise. After being rinsed with clean water, the ink in the pits is removed by the cleaning cloth on the wiping roller 10. The waste liquid after cleaning flows onto the extension plate 8 and then into the water collection tray 7. The wastewater is guided by the water collection trough 702 on the water collection tray 7 and collected at the drain hole 13. The wastewater is then collected into the wastewater tank 3 through the collection pipe 14, thus realizing the recycling of waste liquid.

[0034] This utility model is not limited to the above-described embodiments. Anyone should know that structural changes made under the guidance of this utility model, and any technical solutions that are the same as or similar to this utility model, fall within the protection scope of this utility model. Technical aspects, shapes, and structures not described in detail in this utility model are all publicly known technologies.

Claims

1. An ink cleaning device for a gravure printing machine, comprising: A mobile frame (1) is characterized in that a clean water tank (2) is installed near the bottom right side of the mobile frame (1), a wastewater tank (3) is installed near the bottom left side of the mobile frame (1), a water pump (4) is provided at the top edge of the clean water tank (2), a water pump (5) is provided at the front end of the water pump (4), a connecting pipe (6) is provided at the top of the water pump (5), a cleaning frame (9) is provided on the side of the mobile frame (1) near the top, and a water collection tray (7) is provided below the cleaning frame (9). The front end of the cleaning rack (9) is provided with multiple sets of wiping rollers (10). The top of the cleaning rack (9) is provided with a water distribution pipe (12) near the front. The front of the water distribution pipe (12) is provided with multiple sets of nozzles (1201). The back of the water distribution pipe (12) is provided with a water box (11). A connecting pipe (6) is installed on one side of the water box (11). The top of the water collection tray (7) is provided with a drain hole (13) near the sewage tank (3). A collection pipe (14) is provided at the bottom of the drain hole (13).

2. The ink cleaning device for a gravure printing machine according to claim 1, characterized in that, The water collection tray (7) has extension rods (701) on its front side near both sides. An extension plate (8) is provided on the top of the water collection tray (7) near the front. Mounting rings (801) are fixedly connected to both ends of the extension plate (8) near the front. The extension rods (701) pass through the center of the mounting rings (801).

3. The ink cleaning device for a gravure printing machine according to claim 2, characterized in that, A sealing gasket (703) is provided at the top of the water collection tray (7) near the front of the extension plate (8) and at the bottom.

4. The ink cleaning device for a gravure printing machine according to claim 1, characterized in that, The surface of the water collection tray (7) is provided with a water collection groove (702).

5. The ink cleaning device for a gravure printing machine according to claim 1, characterized in that, The bottom of the mobile frame (1) is provided with casters (101), and the back of the mobile frame (1) is provided with a handle (102) near the top.

6. The ink cleaning device for a gravure printing machine according to claim 1, characterized in that, A cleaning towel is wrapped around the wiping roller (10).

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