Printing ink circulating device of printing machine

Abstract

The utility model belongs to the technical field of pad printing machines, and particularly relates to a printing machine ink circulating device which comprises a liquid collecting hopper, a pad printing machine oil cup and an etching plate, the bottom of the liquid collecting hopper is connected with the input end of an oil pump, the output end of the oil pump is connected with an oil pipe, and the end, away from the oil pump, of the oil pipe is connected with a hose. A sealing pipe cover is connected outside the blow-off pipe, a filter is further connected inside the oil pipe, and the stroke of the oil pump from the oil pipe to the filter is larger than the stroke of the oil pump from the oil pipe to the blow-off pipe. The end, away from the oil pipe, of the hose is connected with the pad printing machine oil cup, the top of the liquid collecting hopper is connected with the bottom face of the etching plate, the open end of the liquid collecting hopper is located under the lower oil groove, and the size of the open end of the liquid collecting hopper is not smaller than that of the lower oil groove. According to the printing ink recycling device, impurities in printing ink can be recycled after being filtered through cooperation of the oil pump, the oil pipe, the hose and the filter piece, so that the impurities in the printing ink are effectively reduced, and the printing quality is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of pad printing machines, and in particular relates to an ink circulation device for a printing machine. Background Art

[0002] A printing press is a machine for printing text and images. Modern printing presses are generally composed of mechanisms such as plate loading, inking, embossing, and paper feeding. Its working principle is: first, the text and image to be printed are made into a printing plate, which is then loaded on the printing press. Then, ink is applied to the places where the text and image are on the printing plate by humans or the printing press, and then directly or indirectly transferred to paper or other substrates (such as textiles, metal plates, plastics, leather, wood boards, glass, and ceramics), thereby replicating printed products that are identical to the printing plate. There are many types of printing presses. In industrial product printing, pad printing machines are often used for printing operations.

[0003] For example, an oil cup pad printer with publication number CN214083431U includes: a workbench, which is equipped with a support frame and a pad printing steel plate; a drying hood with a hood opening facing downward, which is movably installed at the bottom of the support frame, a pad printing rubber head is installed in the drying hood in a liftable manner, the size of the hood opening is larger than the outer diameter of the pad printing rubber head, a hot air blower is installed on the support frame, and the hot air blower is connected to the drying hood through an air supply hose; an oil cup, the oil cup has an open end and a closed end, the open end is slidably arranged on the pad printing steel plate, and the closed end is provided with an ink inlet, a liquid level sensor is installed in the oil cup, and the oil cup is movably installed on the support frame; and an ink supply device, including an ink barrel for storing ink, an ink supply hose and an ink pump, a stirring impeller is installed in the ink barrel, the ink barrel is connected to the ink inlet through the ink supply hose, and the ink pump is installed on the ink supply hose. The utility model solves the problem of poor clarity of the pad printing ink pattern caused by the ink of the rubber head not drying during the pad printing process of the pad printer.

[0004] In the prior art, the ink of the pad printer is directly filled into the ink cup, and then the ink cup is clamped by the clamping mechanism on the pad printer to slide on the etching plate to achieve printing;

[0005] However, as the oil cup slides back and forth on the etched plate, the knife ring at the bottom of the oil cup constantly rubs against the etched plate, causing wear and tear to produce debris, which will fall into the ink and affect the printing quality;

[0006] In view of this, the utility model provides an ink circulation device for a printing press to solve the above problems. Utility Model Content

[0007] The utility model aims to provide an ink circulation device for a printing press, aiming to solve the problem in the prior art that due to the back and forth sliding of the oil cup on the etching plate, the knife ring at the bottom of the oil cup is constantly rubbed against the etching plate, thereby causing wear and tear to produce debris, which will fall into the ink and affect the printing quality.

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an ink circulation device for a printing press, comprising a liquid collecting hopper, a pad printing machine oil cup and an etching plate, the bottom of the liquid collecting hopper is connected to the input end of an oil pump, the output end of the oil pump is connected to an oil pipe, the end of the oil pipe away from the oil pump is connected to a hose, the bottom of the oil pipe is connected to a drain pipe, the outside of the drain pipe is connected to a sealing pipe cover, the inside of the oil pipe is also connected to a filter plate, and the stroke of the oil pump from the oil pump to the filter plate through the oil pipe is greater than the stroke of the oil pump from the oil pump to the drain pipe through the oil pipe;

[0009] One end of the hose away from the oil pipe is connected to the oil cup of the pad printing machine, a through lower oil tank is provided on the etching plate, the top of the liquid collecting hopper is connected to the bottom surface of the etching plate, and the opening end of the liquid collecting hopper is located directly below the lower oil tank, and the size of the opening end of the liquid collecting hopper is not less than the size of the lower oil tank.

[0010] As a preferred embodiment of the ink circulation device for a printing press of the utility model, a limit block is provided inside the oil pipe, and the limit block is located above the connecting end of the sewage pipe and the oil pipe.

[0011] As a preferred embodiment of the ink circulation device of a printing press of the utility model, the filter is arranged in contact with the limit block, and a sealing ring is adhered to the outer edge of the filter, and an interference fit connection is formed between the sealing ring and the oil pipe.

[0012] As a preferred embodiment of the ink circulation device of a printing press of the utility model, the filter is arranged in contact with the limit block, and a sealing ring is adhered to the outer edge of the filter, and an interference fit connection is formed between the sealing ring and the oil pipe.

[0013] As a preferred embodiment of the ink circulation device of a printing press of the utility model, the interior of the pad printing machine ink cup is a trumpet-shaped hollow structure, and a knife ring and a magnetic block are installed at the bottom.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1. Through the design of the utility model, the ink inside the ink cup of the pad printer can be recycled after the impurities in the ink are filtered through the cooperation of the oil pump, the oil pipe, the hose and the filter sheet, thereby effectively reducing the impurities in the ink and improving the printing quality;

[0016] 2. The utility model provides a drain pipe and a sealing pipe cover at the bottom of the oil pipe, so that the impurities filtered by the filter can be easily discharged, thereby preventing the accumulation of impurities in the oil pipe and affecting the circulation of ink. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0018] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0019] Figure 2 It is a three-dimensional cross-sectional structural schematic diagram of the utility model;

[0020] Figure 3 It is a schematic diagram of the enlarged structure of point A of the utility model;

[0021] Figure 4 It is a schematic diagram of the structure of the use process of the utility model.

[0022] In the figure: 1. Liquid collecting bucket; 2. Oil pump; 3. Oil pipe; 4. Hose; 5. Pad printing machine oil cup; 6. Drain pipe; 7. Sealing pipe cover; 8. Limit block; 9. Filter; 10. Etched plate; 11. Lower oil tank; 12. Ink. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] Example 1: Please refer to Figure 1 , 4 The utility model provides the following technical solutions: a printing ink circulation device, including a liquid collecting hopper 1, a pad printing oil cup 5 and an etching plate 10, the interior of the pad printing oil cup 5 is a trumpet-shaped hollow structure, and a knife ring and a magnetic block are installed at the bottom. This structure is a common structure of the pad printing oil cup 5 on the market. The bottom of the liquid collecting hopper 1 is connected to the input end of the oil pump 2, and the output end of the oil pump 2 is connected to the oil pipe 3. The end of the oil pipe 3 away from the oil pump 2 is connected to the hose 4, and the inside of the oil pipe 3 is also integrally connected with a filter 9, and the end of the hose 4 away from the oil pipe 3 is connected to the pad printing oil cup 5. The etching plate 10 is provided with a through lower oil tank 11, the top of the liquid collecting hopper 1 is connected to the bottom surface of the etching plate 10, and the open end of the liquid collecting hopper 1 is located directly below the lower oil tank 11, and the size of the open end of the liquid collecting hopper 1 is not less than the size of the lower oil tank 11;

[0025] When used specifically: fix the etching plate 10 on the pad printing machine, then place the pad printing machine oil cup 5 on the surface of the etching plate 10, and make the clamping mechanism on the pad printing machine clamp the pad printing machine oil cup 5, pour the ink 12 into the lower oil tank 11, and fall into the liquid collecting hopper 1 through the lower oil tank 11, and then through the operation of the oil pump 2, make the ink 12 into the oil guide pipe 3, when the ink 12 passes through the filter 9, the filter 9 can filter out the impurities in the ink 12, and then be pumped into the internal hollow structure of the pad printing machine oil cup 5, because the pad printing machine oil cup 5 will slide back and forth on the surface of the etching plate 10, so that the knife ring at the bottom of the pad printing machine oil cup 5 scrapes the ink 12 into the printed pattern etched on the etching plate 10, and then scrapes the excess ink 12 into the lower oil tank 11, and passes through the filtering cycle again, thereby reducing the impurities in the ink 12 and improving the printing quality;

[0026] Furthermore, in order to prevent the accumulation of impurities in the oil pipe 3 and affect the circulation of the ink 12, a connected drain pipe 6 can be opened at the bottom of the oil pipe 3, and a sealing pipe cap 7 is connected to the outer thread of the drain pipe 6. At the same time, it is necessary to ensure that the stroke of the ink 12 pumped by the oil pump 2 to the filter 9 is greater than the stroke of the ink 12 pumped by the oil pump 2 to the drain pipe 6, so that the impurities filtered by the filter 9 can be smoothly discharged from the drain pipe 6;

[0027] When in use, the impurities accumulated at the bottom of the oil pipe 3 are discharged from the drain pipe 6 by removing the sealing pipe cover 7 .

[0028] Embodiment 2: Figure 2 , Figure 3 As shown, different from the first embodiment, the filter sheet 9 can be connected with the oil pipe 3 in an integrated manner, and can also be connected with the oil pipe 3 in a detachable manner. Specifically, a limit block 8 is arranged inside the oil pipe 3, and the limit block 8 is located above the connecting end of the sewage pipe 6 and the oil pipe 3. At the same time, a sealing ring is adhered to the outer edge of the filter sheet 9, and the filter sheet 9 is placed against the limit block 8, and an interference fit is formed between the filter sheet 9 and the oil pipe 3 through the sealing ring.

[0029] During use: unscrew the sealing tube cover 7 to expose the filter 9, and use fingers or tools such as iron hooks to pick out the filter 9 from the drain pipe 6. According to the type of ink 12 actually used, such as metallic ink, etc., replace the filter 9 with different porosity through the drain pipe 6 to achieve adaptive replacement, so as to prevent the filter 9 from filtering the metal components in the metallic ink and affecting the printing effect.

[0030] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A printing ink circulation device, comprising a liquid collecting hopper (1), a pad printing ink cup (5) and an etching plate (10), wherein the bottom of the liquid collecting hopper (1) is connected to the input end of an oil pump (2), the output end of the oil pump (2) is connected to an oil pipe (3), and the end of the oil pipe (3) away from the oil pump (2) is connected to a hose (4), characterized in that: The bottom of the oil pipe (3) is connected to a drain pipe (6), the outside of the drain pipe (6) is connected to a sealing pipe cover (7), the inside of the oil pipe (3) is also connected to a filter plate (9), and the stroke of the oil pump (2) through the oil pipe (3) to the filter plate (9) is greater than the stroke of the oil pump (2) through the oil pipe (3) to the drain pipe (6); One end of the hose (4) away from the oil pipe (3) is connected to the pad printing machine oil cup (5); a through lower oil groove (11) is provided on the etching plate (10); the top of the liquid collecting hopper (1) is connected to the bottom surface of the etching plate (10); the opening end of the liquid collecting hopper (1) is located directly below the lower oil groove (11); and the size of the opening end of the liquid collecting hopper (1) is not less than the size of the lower oil groove (11).

2. The ink circulation device for a printing press according to claim 1, characterized in that: A limit block (8) is provided inside the oil pipe (3), and the limit block (8) is located above the connecting end of the sewage pipe (6) and the oil pipe (3).

3. The ink circulation device for a printing press according to claim 2, characterized in that: The filter plate (9) is arranged in contact with the limit block (8), and a sealing ring is adhered to the outer edge of the filter plate (9), and an interference fit connection is formed between the filter plate (9) and the oil pipe (3) via the sealing ring.

4. The ink circulation device for a printing press according to claim 3, characterized in that: The sewage discharge pipe (6) and the sealing pipe cover (7) are threadedly connected.

5. The ink circulation device for a printing press according to any one of claims 1 to 4, characterized in that: The interior of the pad printing machine oil cup (5) is a trumpet-shaped hollow structure, and a knife ring and a magnetic block are installed at the bottom.

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