An ink circulation device for a printing press

Abstract

The utility model relates to an ink circulating device for printing machine belongs to printing machine ink circulating technical field, the ink circulating device for printing machine, include: printing machine body, stirring subassembly, printing roller, ink collecting tank and ink pump, one side output of ink pump is fixedly connected with filter component, one side of filter component is equipped with nozzle, and nozzle is equipped with printing machine body one side top, ink collecting tank is used for collecting ink, and the window is opened in the below of ink collecting tank, and is connected with ink pump, and the inside stirring subassembly of ink collecting tank stirs ink, reduces the deposition and caking of ink, and ink collecting tank will the ink of better flowability input into the inside of ink pump, and the inside of nozzle is input into through oil pipe and filter component, and nozzle is equipped with multiple and equidistantly installed one side top of printing roller, and even spray the surface of printing roller with ink, greatly increased the activity of ink, reduced the deposition and skin of ink, improved the evenness of printing roller surface ink.

Description

Technical Field

[0001] This utility model relates to the field of printing press ink circulation technology, and in particular to an ink circulation device for printing presses. Background Technology

[0002] A gravure printing press is a machine that uses a gravure plate for printing. The image areas of the printing plate are recessed, while the blank areas are on the same plane as the outer circle of the printing cylinder. During printing, the entire printing cylinder is inked. A doctor blade scrapes the ink off the blank areas of the plate, leaving the ink on the image areas. Then, the paper is fed through the press, and the impression cylinder presses the paper from the back, transferring the ink from the recessed areas directly to the paper surface. Finally, the printed matter is stacked or rewound in the take-up section. The ink agitation and circulation device is a major component of the gravure printing press, which continuously supplies ink to the printing nozzles.

[0003] Traditional ink mixing and circulation devices use an ink pump to extract and circulate ink from the ink tank. The ink's activity is enhanced during the circulation process. However, traditional ink mixing and circulation devices are prone to ink sedimentation and skinning during circulation, which can clog the printhead, resulting in uneven ink spraying and affecting the printing effect. Utility Model Content

[0004] Therefore, it is necessary to provide an ink circulation device for printing presses to address the problem that traditional ink mixing and circulation devices are prone to ink sedimentation and skinning during circulation, which can easily clog the printhead, resulting in uneven ink spraying and affecting printing quality.

[0005] An ink circulation device for a printing press includes: a printing press body, wherein the printing press body is provided with a printing roller and an ink collection tank, the ink collection tank being disposed below the printing roller; A stirring assembly is disposed inside the ink collection tank for stirring the ink inside the ink collection tank; An ink pump is located below the ink collection tank. A filter assembly is fixedly connected to one output end of the ink pump. A nozzle is provided on one side of the filter assembly and is located above one side of the printing press body.

[0006] In one embodiment, one side of the ink collection trough extends obliquely upward to below the printing roller, which rotates above the ink collection trough.

[0007] In one embodiment, the stirring assembly is driven by a motor to rotate the stirring roller inside the ink collection tank.

[0008] In one embodiment, one input end of the ink pump is inserted through the bottom of the ink collection tank, and the ink pump is made of a corrosion-resistant material.

[0009] In one embodiment, the filter assembly includes a housing fixedly connected to the output end of the ink pump, and a discharge pipe is fixedly inserted into the bottom of the housing, with one end of the discharge pipe communicating with the nozzle.

[0010] In one embodiment, the housing has a filter box and a filter screen inside, with the filter screen located inside the filter box.

[0011] In one embodiment, both the filter box and the filter screen are circular, and the filter screen and the filter box are detachable from the outer casing.

[0012] In one embodiment, a cover plate is attached to the top of the housing, the cover plate being located above one side of the ink pump output end.

[0013] Beneficial effects 1. When ink needs to be circulated, the printing press body drives the printing roller to rotate through the power component. The printing roller is located above the ink collection tank. A doctor blade is installed on one side of the printing roller above the ink collection tank. The doctor blade scrapes off excess ink from the surface of the printing roller. The ink collection tank is used to collect ink. A window is opened at the bottom of the ink collection tank and connected to the ink pump. The stirring component inside the ink collection tank stirs the ink, reducing ink sedimentation and clumping. The ink collection tank feeds the ink with good fluidity into the ink pump. The ink pump feeds the ink into the nozzle through the oil pipe and filter component. There are multiple nozzles installed at equal intervals above one side of the printing roller, which sprays the ink evenly on the surface of the printing roller, greatly increasing the activity of the ink, reducing ink sedimentation and skinning, and improving the ink uniformity on the surface of the printing roller. 2. The filter box and filter screen are inserted into the housing. The filter box and filter screen are replaceable. The filter box mainly protects the filter screen. The filter screen is made of 800 to 1200 mesh nylon inner filter screen, and the filter box is made of stainless steel outer filter screen of less than 0.5 mm. The filter box and filter screen are inserted vertically into the housing. The outlet end of the ink pump is located above the filter box and filter screen, which facilitates the filtration of ink impurities passing through the housing, reduces nozzle clogging, and increases safety. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the ink collection groove structure of this utility model; Figure 3 This is a schematic diagram of the filter assembly structure of this utility model; Figure 4 This is a schematic diagram of the combined structure of the filter box and filter screen of this utility model.

[0016] Figure label: 100. Printing press body; 101. Printing roller; 200. Ink collection tank; 300. Nozzle; 400. Stirring assembly; 500. Ink pump; 600. Filter assembly; 601. Housing; 602. Cover plate; 603. Discharge pipe; 604. Filter box; 605. Filter screen. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0018] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on the other component or there may be an intermediate component. When a component is considered to be "connected to" another component, it can be directly connected to the other component or there may be an intermediate component present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this specification are for illustrative purposes only and do not represent the only possible implementation.

[0019] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0020] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature and the second feature are in indirect contact through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0021] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as commonly understood by one of ordinary skill in the art to which this specification belongs. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used in this specification includes any and all combinations of one or more of the associated listed items.

[0022] The following is combined with Figures 1-4 This invention describes an ink circulation device for a printing press.

[0023] In one embodiment, an ink circulation device for a printing press includes: a printing press body 100, a stirring assembly 400, and an ink pump 500. The printing press body 100 is provided with a printing roller 101 and an ink collection tank 200. The ink collection tank 200 is located below the printing roller 101. The stirring assembly 400 is located inside the ink collection tank 200 for stirring the ink inside the ink collection tank 200. The ink pump 500 is located below the ink collection tank 200. A filter assembly 600 is fixedly connected to one output end of the ink pump 500. A nozzle 300 is provided on one side of the filter assembly 600 and is located above one side of the printing press body 100. In this embodiment, when ink needs to be circulated, the printing machine body 100 drives the printing roller 101 to rotate through the power component. The printing roller 101 is located above the ink collection tank 200. A scraper is installed on one side of the printing roller 101. The scraper is above the ink collection tank 200 and scrapes off excess ink from the surface of the printing roller 101. The ink collection tank 200 is used to collect ink. A window is provided at the bottom of the ink collection tank 200 and it is connected to the ink pump 500. The stirring component 400 inside the ink collection tank 200 stirs the ink, reducing ink sedimentation and clumping. The ink collection tank 200 feeds the ink with good flowability into the ink pump 500. The ink pump 500 feeds the ink into the nozzle 300 through the oil pipe and the filter component 600. Multiple nozzles 300 are provided and are equidistantly installed above one side of the printing roller 101, so as to evenly spray the ink on the surface of the printing roller 101, which greatly increases the activity of the ink, reduces ink sedimentation and skinning, and improves the ink uniformity on the surface of the printing roller 101.

[0024] like Figure 1 , Figure 2 and Figure 3 One side of the ink collection tank 200 extends upward at an angle to below the printing roller 101. The printing roller 101 rotates above the ink collection tank 200. The stirring assembly 400 drives the stirring roller through a motor and rotates inside the ink collection tank 200. In this embodiment, the bottom of the extension surface of the ink collection tank 200 is an inclined surface. Excess ink on the printing roller 101 is collected through the ink collection tank 200. The rotating roller of the stirring assembly 400 rotates inside the ink collection tank 200 to improve the activity of the ink inside the ink collection tank 200 and reduce sedimentation and skinning.

[0025] like Figure 1 , Figure 2 and Figure 3 The ink pump 500 is inserted into the bottom of the ink collection tank 200 through one side input end. The ink pump 500 is made of corrosion-resistant material. The filter assembly 600 includes a housing 601 fixedly connected to the output end of the ink pump 500. A discharge pipe 603 is fixedly inserted into the bottom of the housing 601. One end of the discharge pipe 603 is connected to the nozzle 300. In this embodiment, the output pipe of the ink pump 500 is made of a rigid material and is used to support the filter assembly 600. The inlet end of the ink pump 500 is located below the stirring assembly 400. The ink with good fluidity is not easy to clog the ink pump 500. The ink is filtered inside the housing 601 and then enters the interior of the nozzle 300 through the discharge pipe 603. The filter assembly 600 is made of corrosion-resistant material and is mainly used to filter impurities in the ink.

[0026] like Figure 1 , Figure 2 and Figure 4 The housing 601 has a filter box 604 and a filter screen 605 inside. The filter screen 605 is located inside the filter box 604. Both the filter box 604 and the filter screen 605 are circular, and the filter screen 605 and the filter box 604 are detachable from the housing 601. In this embodiment, the filter box 604 and filter screen 605 are inserted into the interior of the housing 601. The filter box 604 and filter screen 605 are replaceable. The filter box 604 mainly protects the filter screen 605. The filter screen 605 is made of 800-1200 mesh nylon inner filter screen, and the filter box 604 is made of stainless steel outer filter screen less than 0.5mm. The filter box 604 and filter screen 605 are vertically inserted into the interior of the housing 601. The outlet end of the ink pump 500 is located above the filter box 604 and filter screen 605, which facilitates the filtration of ink impurities passing through the housing 601, reduces clogging of the nozzle 300, and increases safety.

[0027] like Figure 1 , Figure 2 and Figure 4 A cover plate 602 is attached to the top of the outer casing 601, and the cover plate 602 is located above one side of the output end of the ink pump 500. In this embodiment, the cover plate 602 is fixed to the outer shell 601 by bolts. A sealing ring is installed at the connection between the cover plate 602 and the outer shell 601 to increase the sealing performance and reduce ink leakage. Opening the cover plate 602 allows the filter box 604 and filter screen 605 inside the outer shell 601 to be replaced, thereby improving work efficiency.

[0028] Working principle: The printing press body 100 drives the printing rollers 101 to rotate through existing power components. Multiple printing rollers 101 apply ink to the surface of cloth or paper. The inlet end of the ink pump 500 is located below the stirring assembly 400. The ink with good fluidity is not easy to clog the ink pump 500. The ink is filtered inside the housing 601 and then enters the interior of the nozzle 300 through the discharge pipe 603. The filter assembly 600 is made of corrosion-resistant material and is mainly used to filter impurities in the ink. The ink collection tank 200 is internally stirred by the stirring component 400 to reduce ink sedimentation and clumping. The ink collection tank 200 feeds the ink with good flowability into the ink pump 500. The ink pump 500 feeds the ink into the nozzle 300 through the oil pipe and the filter component 600. Multiple nozzles 300 are installed at equal intervals above one side of the printing roller 101 to evenly spray the ink onto the surface of the printing roller 101, which greatly increases the activity of the ink, reduces ink sedimentation and skinning, and improves the ink uniformity on the surface of the printing roller 101.

[0029] It should be noted that the printing press body 100, printing roller 101, motor, ink pump 500 and nozzle 300 mentioned above are all components with relatively mature existing technology. The specific models can be selected according to actual needs. At the same time, the printing press body 100, motor and ink pump 500 can be powered by the built-in power supply or by the mains power. The specific power supply method is selected according to the situation and will not be elaborated here.

[0030] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0031] The above embodiments only illustrate several implementation methods of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of this utility model. 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 should be determined by the appended claims.

Claims

1. An ink circulation device for a printing press, characterized in that, include: A printing press body (100) is provided with a printing roller (101) and an ink collection groove (200), the ink collection groove (200) being located below the printing roller (101); A stirring assembly (400) is disposed inside the ink collection tank (200) for stirring the ink inside the ink collection tank (200); An ink pump (500) is located below the ink collection tank (200). A filter assembly (600) is fixedly connected to one output end of the ink pump (500). A nozzle (300) is provided on one side of the filter assembly (600). The nozzle (300) is located above one side of the printing press body (100).

2. The ink circulation device for a printing press according to claim 1, characterized in that, One side of the ink collection trough (200) extends obliquely upward to below the printing roller (101), and the printing roller (101) rotates above the ink collection trough (200).

3. The ink circulation device for a printing press according to claim 1, characterized in that, The stirring assembly (400) is driven by a motor to rotate the stirring roller inside the ink collection tank (200).

4. The ink circulation device for a printing press according to claim 1, characterized in that, The ink pump (500) is inserted into the bottom of the ink collection tank (200) through one side of the input end, and the ink pump (500) is made of corrosion-resistant material.

5. The ink circulation device for a printing press according to claim 1, characterized in that, The filter assembly (600) includes a housing (601) fixedly connected to the output end of the ink pump (500), and a discharge pipe (603) is fixedly inserted into the bottom of the housing (601), with one end of the discharge pipe (603) communicating with the nozzle (300).

6. The ink circulation device for a printing press according to claim 5, characterized in that, The housing (601) is provided with a filter box (604) and a filter screen (605) inside, with the filter screen (605) located inside the filter box (604).

7. The ink circulation device for a printing press according to claim 6, characterized in that, The filter box (604) and the filter screen (605) are both circular, and the filter screen (605) and the filter box (604) are detachable from the outer shell (601).

8. The ink circulation device for a printing press according to claim 7, characterized in that, A cover plate (602) is attached to the top of the housing (601), and the cover plate (602) is located above one side of the output end of the ink pump (500).

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