External ink storage device of four-color offset press

By introducing a stirring shaft and a double-layer filter into the external ink storage device of a four-color offset printing press, the problems of ink sedimentation and impurity clogging are solved, achieving thorough ink stirring and filtration, and improving printing quality and speed.

CN223918958UActive Publication Date: 2026-02-17GUANGDONG HOUDE HUAYING TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202520508025.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-21
Publication Date
2026-02-17
Estimated Expiration
2035-03-21

AI Technical Summary

Technical Problem

The existing ink storage devices of four-color offset printing presses are prone to ink sedimentation when not used for a long time, and lack filtration function, which can cause inkjet tube blockage, affecting printing quality and speed.

Method used

An external ink storage device with a stirring shaft and a filter box was designed. The stirring shaft is driven by a motor to stir the ink, and the ink is filtered by a double-layer filter to prevent sedimentation and impurity accumulation, and the filter can be easily replaced.

Benefits of technology

It effectively prevents ink sedimentation, ensures printing quality, avoids inkjet tube clogging, and improves printing speed and equipment reliability.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an external ink storage device of a four-color offset press, relates to the technical field of four-color offset presses, and solves the problems that after an existing external ink storage device stores ink, if the external ink storage device is not used for a period of time, the ink in the external ink storage device is precipitated, and the existing external ink storage device generally uses the ink directly, so that the ink storage efficiency is low. The utility model relates to an ink jet device which solves the problems that an existing ink jet device does not have a filtering function and impurities in ink are prone to blocking an ink jet pipe after being used for a long time and comprises a main body, and a control panel is arranged on the front face of the main body. The stirring shaft and a motor drive the stirring shaft to rotate, centrifugal force is generated due to rotation of the stirring shaft, and then a movable seat is driven to rotate; the movable seat drives the movable rod to be thrown up in the rotating process, at the moment, the movable rod drives the beating plate to beat and stir the ink, the ink passes through the interior of the through hole in the high-speed rotating process of the stirring shaft, and the through hole is arranged to be wide outside and narrow inside so that the ink can be fully stirred.
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Description

Technical Field

[0001] This utility model relates to the field of four-color offset printing press technology, and in particular to an external ink storage device for a four-color offset printing press. Background Technology

[0002] Offset printing presses are a type of planographic printing press. During printing, the image is first printed onto the printing plate and then transferred from the printing plate to the rubber cylinder, and then transferred from the rubber cylinder to the paper. Offset printing presses can be classified into sheet-fed offset printing presses and web offset printing presses according to the paper feeding method; they can be classified into single-color, two-color, four-color, and multi-color printing presses according to the number of colors printed in one pass; and they can be classified into small offset printing presses, six-open, four-open, half-open, and full-sheet printing presses according to the maximum paper size they can print on. In addition, there are double-sided printing presses that can print on both sides simultaneously in one pass.

[0003] In the process of using a four-color offset printing press, an external ink storage device is generally used to store ink for the convenience of the offset printing press. However, if the existing external ink storage device is not used for a period of time after storing ink, the ink inside the external storage device will settle, which will affect the paper printing.

[0004] Meanwhile, existing external ink storage devices generally use ink directly without filtering. After prolonged use, impurities in the ink can easily clog the inkjet tube, causing malfunctions in the offset printing machine and affecting the offset printing speed.

[0005] Therefore, an external ink storage device for a four-color offset printing press is proposed. Utility Model Content

[0006] To address the issues of ink sedimentation in existing external ink storage devices after storage and subsequent disuse, and the fact that existing external ink storage devices typically use ink directly without filtration, leading to clogging of the inkjet tubes by impurities after prolonged use, this invention provides an external ink storage device for a four-color offset printing machine.

[0007] This utility model provides an external ink storage device for a four-color offset printing machine, which adopts the following technical solution:

[0008] An external ink storage device for a four-color offset printing machine includes a main body. The front of the main body has a control panel, a drain port on one side, and a discharge port at the bottom. A solenoid valve is installed inside the discharge port. A motor is located at the top of the main body, with its output extending into the interior of the main body. A filter box is embedded in one side of the main body, and a retaining block is located on one side of the filter box. A stirring shaft is located inside the main body, with its top connected to the motor output. A retaining seat is located inside the main body, directly below the stirring shaft, and a guide plate is located at the bottom of the interior of the main body.

[0009] By adopting the above technical solution, the stirring and filtering effects of ink can be effectively achieved.

[0010] Optionally, the top of the filter box has an opening, a filter screen one is embedded inside the filter box, and a filter screen two is provided below the filter screen one, the filter holes of the filter screen two being smaller than the filter holes of the filter screen one.

[0011] By adopting the above technical solution, ink can be effectively filtered.

[0012] Optionally, the outer wall of the stirring shaft is provided with a movable seat, and the other end of the movable seat is provided with a movable rod. Both the movable seat and the movable rod are movable structures.

[0013] By adopting the above technical solution, the ink can be effectively stirred.

[0014] Optionally, the other end of the movable rod is provided with a clapper plate, which is rectangular in shape, and has through holes that are equally spaced on its surface, with the through holes being wider on the outside and narrower on the inside.

[0015] By adopting the above technical solution, it is possible to further achieve thorough mixing of the ink.

[0016] Optionally, the card holder is composed of two horizontal plates and one vertical plate. The card holder is C-shaped. A spring is provided on the inner side of the vertical plate of the card holder. A limiting post is provided at the other end of the spring. The limiting post is wider on the left and narrower on the right.

[0017] By adopting the above technical solution, the installation of the filter box can be effectively achieved.

[0018] Optionally, the upper surface of one horizontal plate of the card holder is provided with two springs, and the top of each of the two springs is provided with a limiting block. Both limiting blocks are trapezoidal and are axially symmetrical.

[0019] By adopting the above technical solution, the positioning effect of the filter box can be effectively achieved.

[0020] Optionally, the card block is rectangular, and a docking hole is provided on one side of the card block. The docking hole is narrow on the outside and wide on the inside, and the docking hole is adapted to the limiting post.

[0021] By adopting the above technical solution, it is possible to effectively connect with the card slot.

[0022] Optionally, the bottom of the card block has two mating grooves, the shape of the two mating grooves is consistent with the shape of the limiting block, the mating grooves are adapted to the limiting block, and the card block is adapted to the card seat.

[0023] By adopting the above technical solution, the loosening of the filter box can be effectively avoided.

[0024] In summary, this utility model has the following beneficial effects:

[0025] 1. In this utility model, when the stirring shaft is driven by a motor to rotate, the centrifugal force generated by the rotation of the stirring shaft will drive the movable seat to rotate. During the rotation of the movable seat, the movable rod will swing up, and at this time the movable rod will drive the beater to beat and stir the ink. During the high-speed rotation of the stirring shaft, the ink passes through the inside of the through hole, which is set with a wider outer and narrower inner shape to fully stir the ink.

[0026] 2. This utility model uses a filter box. By embedding the filter box inside the main body, and simultaneously engaging the corresponding locking block into the corresponding locking seat, the locking block causes the limiting post to rebound into its corresponding mating hole due to the elastic force of spring one. At the same time, spring two drives the limiting block into its corresponding mating groove, thereby achieving the installation of the filter box. When it is necessary to replace the filter screen, the filter box can be directly pulled out, causing the limiting post and limiting block to loosen their fixation, allowing the filter box to be pulled out of the main body. This effectively achieves the effect of filtering ink while facilitating the replacement of the filter screen. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0028] Figure 2 This is a schematic diagram of the internal structure of the main body of this utility model;

[0029] Figure 3 This is a schematic diagram of the stirring structure of this utility model;

[0030] Figure 4 This is a schematic diagram of the card holder structure of this utility model;

[0031] Figure 5 This is a schematic diagram of the filter structure of this utility model;

[0032] Figure 6 This is a schematic diagram of the card block structure of this utility model.

[0033] Explanation of reference numerals in the attached figures:

[0034] 1. Main body; 101. Control panel; 102. Drain outlet; 103. Discharge outlet; 104. Solenoid valve; 105. Motor; 106. Guide plate; 2. Filter box; 201. Opening; 202. Filter screen one; 203. Filter screen two; 3. Stirring shaft; 301. Movable seat; 302. Movable rod; 303. Paddle plate; 304. Through hole; 4. Locking seat; 401. Spring one; 402. Limiting post; 403. Spring two; 404. Limiting block; 5. Locking block; 501. Connecting hole; 502. Connecting groove. Detailed Implementation

[0035] The following description, in conjunction with the embodiments of this utility model, includes appendices. Figure 1-6 The technical solutions in the embodiments of this utility model are clearly and completely described herein. Obviously, the described embodiments are only some embodiments of this utility model, and 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.

[0036] Please refer to Figure 1-6 An external ink storage device for a four-color offset printing machine includes a main body 1. The front of the main body 1 is provided with a control panel 101. A drain port 102 is provided on one side of the main body 1. A discharge port 103 is provided at the bottom of the main body 1. A solenoid valve 104 is provided inside the discharge port 103. A motor 105 is provided at the top of the main body 1. The output end of the motor 105 extends into the interior of the main body 1. A filter box 2 is embedded in one side of the main body 1. A locking block 5 is provided on one side of the filter box 2. A stirring shaft 3 is provided inside the main body 1. The top of the stirring shaft 3 is connected to the output end of the motor 105. A mounting seat 4 is provided on one side of the main body 1 directly below the stirring shaft 3. A guide plate 106 is provided at the bottom of the interior of the main body 1.

[0037] When the ink remains stagnant for too long, the motor 105 is started to drive the stirring shaft 3 to work. The stirring shaft 3 thoroughly stirs the ink to prevent sedimentation. At the same time, when the equipment needs to be refilled, the solenoid valve 104 is controlled by the control panel 101 to control the ink output. When the ink is being discharged, it passes through the filter box 2, achieving a double filtration effect to prevent impurities from being generated in the ink.

[0038] Reference Figure 5 The top of the filter box 2 has an opening 201. The filter screen 202 is embedded inside the filter box 2. The filter screen 203 is located below the filter screen 202. The filter holes of the filter screen 203 are smaller than the filter holes of the filter screen 202.

[0039] When the ink passes through the inside of the filter box 2, it can be initially filtered by the filter screen 202, and then the ink can be deeply filtered by the filter screen 203 to prevent the generation of impurities inside the ink.

[0040] Reference Figure 3 The outer wall of the stirring shaft 3 is provided with a movable seat 301, and the other end of the movable seat 301 is provided with a movable rod 302. Both the movable seat 301 and the movable rod 302 are movable structures.

[0041] The other end of the movable rod 302 is provided with a striking plate 303. The striking plate 303 is rectangular and has through holes 304 at equal intervals on its surface. The through holes 304 are wider on the outside and narrower on the inside.

[0042] When the motor 105 drives the stirring shaft 3 to rotate, the centrifugal force generated by the rotation of the stirring shaft 3 will drive the movable seat 301 to rotate. During the rotation, the movable seat 301 will drive the movable rod 302 to swing up. At this time, the movable rod 302 will drive the beater 303 to beat and stir the ink.

[0043] During the high-speed rotation of the stirring shaft 3, the ink passes through the interior of the through hole 304. The through hole 304 is designed to be wider on the outside and narrower on the inside, which can fully stir the ink.

[0044] Reference Figure 4-6 The card holder 4 is composed of two horizontal plates and one vertical plate. The card holder 4 is C-shaped. A spring 401 is provided on the inner side of the vertical plate of the card holder 4. A limiting post 402 is provided at the other end of the spring 401. The limiting post 402 is wider on the left and narrower on the right.

[0045] Two springs 403 are provided on the upper surface of one horizontal plate of the card holder 4. Each spring 403 has a limiting block 404 at its top. Both limiting blocks 404 are trapezoidal and are axially symmetrical.

[0046] The locking block 5 is rectangular, and a docking hole 501 is opened on one side of the locking block 5. The docking hole 501 is narrow on the outside and wide on the inside, and the docking hole 501 is adapted to the limiting post 402.

[0047] Two docking slots 502 are provided at the bottom of the card block 5. The shape of the two docking slots 502 is consistent with the shape of the limiting block 404. The docking slots 502 are adapted to the limiting block 404, and the card block 5 is adapted to the card seat 4.

[0048] By embedding the filter box 2 into the body 1, and at the same time, the locking block 5 is locked into the corresponding locking seat 4. When the locking block 5 is locked in, the limiting post 402 rebounds to the corresponding docking hole 501 due to the elastic force of the first spring 401. At the same time, the second spring 403 drives the limiting block 404 to lock into the corresponding docking groove 502, thereby achieving the installation of the filter box 2.

[0049] When the filter needs to be replaced, the filter box 2 can be pulled directly to loosen the fixing of the limiting post 402 and the limiting block 404 to the filter box 2, so that the filter box 2 can be pulled out of the main body 1 to achieve the effect of replacing the filter.

[0050] The implementation principle of this utility model is as follows: First, when ink needs to be added to an external device, the control motor 105 is activated to drive the stirring shaft 3 to fully stir the ink, so as to prevent the ink from settling due to prolonged stillness. The control solenoid valve 104 controls the ink output. When ink is added, the ink is filtered through the filter box 2 to prevent impurities from appearing inside the ink.

[0051] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An ink external storage device for a four-color offset printing machine, comprising a main body (1), characterized in that: The front of the main body (1) is provided with a control panel (101), one side of the main body (1) is provided with a sewage outlet (102), the bottom of the main body (1) is provided with a discharge port (103), the inside of the discharge port (103) is provided with a solenoid valve (104), the top of the main body (1) is provided with a motor (105), the output end of the motor (105) extends to the inside of the main body (1), one side of the main body (1) is embedded with a filter box (2), one side of the filter box (2) is provided with a clamping block (5), the inside of the main body (1) is provided with a stirring shaft (3), the top of the stirring shaft (3) is connected with the output end of the motor (105), one side of the inside of the main body (1) below the stirring shaft (3) is provided with a clamping seat (4), the inside of the main body (1) below is provided with a guide plate (106).

2. An ink reservoir for a four-colour offset printing press according to claim 1, characterised in that: The top of the filter box (2) is provided with an opening (201), the inside of the filter box (2) is embedded with a filter screen one (202), the lower side of the filter screen one (202) is provided with a filter screen two (203), the filter holes of the filter screen two (203) are smaller than the filter holes of the filter screen one (202).

3. The ink reservoir of claim 1 wherein: The outer wall of the stirring shaft (3) is provided with a movable seat (301), the other end of the movable seat (301) is provided with a movable rod (302), and the movable seat (301) and the movable rod (302) are both movable structures.

4. An external ink storage device for a four-color offset printing press according to claim 3, wherein: The other end of the movable rod (302) is provided with a beating plate (303), the beating plate (303) is rectangularly arranged, a plurality of through holes (304) are equidistantly arranged on the surface of the beating plate (303), and the through holes (304) are arranged in a manner that the outer width is wider than the inner width.

5. The ink reservoir of claim 1 wherein: The clamping seat (4) is composed of two horizontal plates and a vertical plate, the clamping seat (4) is arranged in a C shape, the inside of the vertical plate of the clamping seat (4) is provided with a spring one (401), the other end of the spring one (401) is provided with a limiting column (402), and the limiting column (402) is arranged in a manner that the left side is wider than the right side.

6. The ink reservoir of claim 1 wherein: The upper surface of one of the horizontal plates of the clamping seat (4) is provided with two spring two (403), the top of each of the two spring two (403) is provided with a limiting block (404), the two limiting blocks (404) are both arranged in a trapezoidal shape, and the two limiting blocks (404) are arranged in an axisymmetric manner.

7. The ink reservoir of claim 1 wherein: The clamping block (5) is rectangularly arranged, one side of the clamping block (5) is provided with a butt joint hole (501), the butt joint hole (501) is arranged in a manner that the outer side is narrower than the inner side, and the butt joint hole (501) is matched with the limiting column (402).

8. The ink reservoir of claim 1 wherein: The bottom of the clamping block (5) is provided with two butt joint grooves (502), the shapes of the two butt joint grooves (502) are consistent with the shape of the limiting block (404), the butt joint grooves (502) are matched with the limiting block (404), and the clamping block (5) is matched with the clamping seat (4).