Continuous printing ink circulating device

Abstract

The utility model belongs to the technical field of printing ink circulating devices, and particularly relates to a continuous printing ink circulating device which comprises a flow guide cover, a recycling box arranged on one side of the flow guide cover, a first centrifugal pump located on one side of the recycling box and a second centrifugal pump located on the other side of the recycling box. A second centrifugal pump; a primary filter plate; the filtering drawer is installed in the recycling box in a drawing and pulling mode, secondary filtering holes are formed in the side face of the filtering drawer, and a disassembling and assembling opening for the filtering drawer to penetrate through is formed in the recycling box; according to the utility model, the primary filter plate and the filter drawer form a double-filter system, so that the workload of the primary filter plate is reduced, and when the primary filter plate is disassembled for cleaning, the filter drawer can be used for filtering without shutdown operation, and the working efficiency is improved; as the filter drawer is of a box-shaped structure and is provided with side holes, the filter drawer does not need to be disassembled and maintained in a short time.

Description

Technical Field

[0001] This utility model belongs to the technical field of printing ink circulation devices, specifically relating to a continuous printing ink circulation device. Background Technology

[0002] Printing ink is a colorant used in the printing process. It is mainly composed of resin, pigment, solvent (or water) and additives. It is transferred to the surface of substrates such as paper, plastic, and metal through printing equipment (such as offset printing, letterpress printing, gravure printing, screen printing, etc.) to form text, patterns or images.

[0003] During printing, ink overflow may occur. Excess ink needs to be collected; otherwise, it will not only lead to uneven printing but also waste ink.

[0004] A search revealed that Chinese utility model patent CN222407679U discloses an "environmentally friendly water-based ink recycling device", which includes a base plate and a processing box. The processing box is installed on the top side of the base plate. The storage chamber is equipped with a stirring mechanism, which includes several stirring rods. A placement plate is installed on one side of the inside of the processing chamber, and guide plates are connected to both sides of the bottom of the placement plate. A collection trough is provided at the bottom of a pair of guide plates inside the processing box.

[0005] While existing recycling devices, including those described above, can filter and recover spilled ink, they rely on a single filter plate, which places a heavy burden on the plate. Furthermore, the machine must be stopped before the filter plate can be removed to clean it, resulting in a significant reduction in production efficiency.

[0006] To address the aforementioned problems, this utility model proposes a continuous printing ink circulation device. Utility Model Content

[0007] To address the aforementioned problems in the existing technology, this utility model provides a continuous printing ink circulation device, which is convenient to use and highly reliable.

[0008] To achieve the above objectives, this utility model provides the following technical solution: a continuous circulation device for printing ink, comprising a flow guide shroud and a recycling bin disposed on one side of the flow guide shroud, with a top cover fixed to the top of the recycling bin, and further comprising:

[0009] Centrifugal pump No. 1 is located on one side of the recycling tank, and the inlet of centrifugal pump No. 1 is connected to the recycling tank via a pipe, and the outlet of centrifugal pump No. 1 is connected to the ink nozzle of the printing press via a pipe.

[0010] The second centrifugal pump is fixed to the top surface of the top cover, and the inlet of the second centrifugal pump is connected to the flow guide shroud via a pipe, and the outlet is connected to the recycling tank via a pipe.

[0011] A primary filter plate, which is detachably installed inside the flow guide shroud, and has primary filter holes machined on it;

[0012] A filter drawer is installed inside the recycling bin by a pull-out method, and secondary filter holes are machined on the side of the filter drawer. A disassembly port for the filter drawer to pass through is machined on the recycling bin.

[0013] As a preferred technical solution of this utility model, it also includes:

[0014] A support frame, fixed inside the flow guide shroud, is used to support the primary filter plate;

[0015] A first magnetic strip is bonded and fixed to the top surface of the support frame;

[0016] The second magnetic strip is bonded and fixed to the bottom surface of the primary filter plate and attracts the first magnetic strip.

[0017] As a preferred technical solution of this utility model, it also includes:

[0018] A limiting plate is fixed to the end of the filter drawer, and two symmetrically distributed positioning notches are machined on the limiting plate.

[0019] Two positioning screws are symmetrically fixed to the outer wall of the recycling bin and pass through the positioning notch;

[0020] A wing nut is installed on the extended end of the positioning screw by means of thread engagement.

[0021] As a preferred technical solution of this utility model, it also includes:

[0022] A rubber sealing ring is bonded and fixed to the side of the limiting plate facing the recycling bin.

[0023] As a preferred technical solution of this utility model, it also includes:

[0024] A handle, which is fixed to the outer wall of the limiting plate.

[0025] As a preferred embodiment of this utility model, the top of the filter drawer is flush with the top of the recycling bin.

[0026] As a preferred embodiment of this utility model, a fixing hole is provided on the top cover, and the top cover is fixed to the top of the recycling bin with bolts.

[0027] As a preferred technical solution of this utility model, it also includes:

[0028] A transparent window is embedded and fixed to the recycling bin.

[0029] Compared with the prior art, the beneficial effects of this utility model are:

[0030] In this invention, a dual filtration system is formed by the primary filter plate and the filter drawer. This not only reduces the workload of the primary filter plate, but also allows for filtration through the filter drawer when the primary filter plate is disassembled for cleaning, eliminating the need to stop the machine and improving work efficiency. Furthermore, since the filter drawer has a box-shaped structure and side openings, it does not require disassembly or maintenance in a short period of time.

[0031] Other additional advantages and beneficial effects of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this invention. Attached Figure Description

[0032] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0033] Figure 1 This is a schematic diagram of the structure of this utility model;

[0034] Figure 2 This utility model Figure 1 Enlarged structural diagram at point A in the diagram;

[0035] Figure 3 This utility model Figure 1 Enlarged structural diagram at point B in the diagram;

[0036] Figure 4 This utility model Figure 1 A magnified structural diagram at point C in the diagram.

[0037] In the diagram: 1. Flow guide; 2. Recycling bin; 21. Transparent window; 22. Disassembly port; 3. Top cover; 31. Fixing hole; 4. Centrifugal pump No. 1; 5. Centrifugal pump No. 2; 6. Primary filter plate; 61. Primary filter holes; 7. Filter drawer; 71. Secondary filter holes; 72. Limiting plate; 721. Positioning notch; 722. Handle; 8. Positioning screw; 9. Wing nut; 10. Rubber sealing ring; 11. Support frame; 12. Magnetic strip No. 1; 13. Magnetic strip No. 2. Detailed Implementation

[0038] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0039] Please see Figures 1-4 The present invention provides the following technical solution: a printing ink continuous circulation device, including a flow guide shroud 1 and a recycling box 2 disposed on one side of the flow guide shroud 1, a top cover 3 fixed on the top of the recycling box 2, and further including: a first centrifugal pump 4, a second centrifugal pump 5, a primary filter plate 6 and a filter drawer 7.

[0040] Furthermore, by Figure 1 and Figure 2 As shown, in this embodiment, centrifugal pump 4 is located on one side of the recycling tank 2, and the inlet of centrifugal pump 4 is connected to the recycling tank 2 via a pipe, and the outlet is connected to the ink nozzle of the printer via a pipe. Centrifugal pump 5 is fixed to the top surface of the top cover 3, and the inlet of centrifugal pump 5 is connected to the flow guide shroud 1 via a pipe, and the outlet is connected to the recycling tank 2 via a pipe. The primary filter plate 6 is detachably installed inside the flow guide shroud 1, and primary filter holes 61 are machined on the primary filter plate 6. The filter drawer 7 is installed in the recycling tank 2 by a pull-out method, and secondary filter holes 71 are machined on the side of the filter drawer 7. The recycling tank 2 has a disassembly and assembly port 22 for the filter drawer 7 to pass through. With the above scheme, when in use, the aperture of the secondary filter hole 71 is slightly smaller than the aperture of the primary filter hole 61. An ink injection port is provided on the top cover 3, and initial ink is injected into the recycling tank 2 through the ink injection port.

[0041] Start centrifugal pump 4 to pump the ink in the recovery tank 2 to the ink nozzle of the printing press for normal printing. At the same time, start centrifugal pump 5 to create negative pressure in the flow guide shroud 1 to collect splashed or excess ink during printing.

[0042] The splashed ink first contacts the primary filter plate 6 inside the flow guide shroud 1. Large particles of impurities (such as paper scraps and clumps) are intercepted by the primary filter holes 61 (with relatively large pore sizes, such as 0.5-1mm), and the filtrate flows into the bottom of the flow guide shroud 1.

[0043] Centrifugal pump 5 draws the filtrate in the guide shroud 1 to the recovery tank 2. The filtrate undergoes secondary filtration through the secondary filter holes 71 of the filter drawer 7 (the hole diameter is slightly smaller than that of the primary filter holes 61, for example, 0.1-0.7mm). Fine impurities (such as pigment particle agglomerates) are trapped, and the clean ink flows into the bottom of the recovery tank 2. Centrifugal pump 4 draws the clean ink from the bottom of the recovery tank 2 and delivers it through pipelines to the ink nozzles of the printing press, thus realizing the recycling of ink.

[0044] This utility model forms a dual filtration system by setting a primary filter plate 6 and a filter drawer 7. This not only reduces the workload of the primary filter plate 6, but also allows filtration through the filter drawer 7 when the primary filter plate 6 is disassembled for cleaning, without the need to stop the machine, thus improving work efficiency. Since the filter drawer 7 has a box-shaped structure and a side opening, it does not require disassembly and maintenance in a short period of time.

[0045] Preferably, by Figure 1 and Figure 3 As shown, this embodiment also includes: a support frame 11, a first magnetic strip 12, and a second magnetic strip 13. The support frame 11 is fixed inside the flow guide shroud 1 to support the primary filter plate 6. The first magnetic strip 12 is bonded and fixed to the top surface of the support frame 11, and the second magnetic strip 13 is bonded and fixed to the bottom surface of the primary filter plate 6 and attracts the first magnetic strip 12. With the above solution, when in use, the combination of the support frame 11 and the magnetic strip provides the function of tool-free quick disassembly and assembly and stable fixation for the installation and maintenance of the primary filter plate 6.

[0046] Align the primary filter plate 6 with the support frame 11 inside the flow guide shroud 1, so that the second magnetic strip 13 at the bottom of the plate automatically aligns and adsorbs with the first magnetic strip 12 (which has the opposite polarity to the second magnetic strip 13) on the top surface of the support frame 11, without the need for screws or clips.

[0047] Preferably, by Figure 1 and Figure 2 As shown, this embodiment also includes: a limiting plate 72, positioning screws 8, and a wing nut 9. The limiting plate 72 is fixed to the end of the filter drawer 7, and two symmetrically distributed positioning notches 721 are machined on the limiting plate 72. The two positioning screws 8 are symmetrically fixed to the outer wall of the recycling box 2 and pass through the positioning notches 721. The wing nut 9 is installed on the protruding end of the positioning screws 8 by thread engagement. With the above scheme, when using the filter drawer 7, after pushing it into the recycling box 2, the positioning screws 8 pass through the positioning notches 721. Tightening the wing nut 9 on the protruding end of the positioning screws 8 can lock the filter drawer 7, ensuring the stability of the filter drawer 7 installation. The wing nut 9 can be rotated manually without tools.

[0048] When it is necessary to disassemble and clean the filter drawer 7, unscrew the wing nut 9, and pull the filter drawer 7 horizontally through the disassembly port 22 of the recycling box 2 to pour out the trapped impurities and clean it. There is no need to empty the ink in the recycling box.

[0049] Preferably, by Figure 1 and Figure 2 As shown, this embodiment also includes a rubber sealing ring 10, which is bonded and fixed to the side of the limiting plate 72 facing the recycling box 2. With the above solution, when using the filter drawer 7, after pushing it into the recycling box 2, the positioning screw 8 passes through the positioning notch 721. Tightening the wing nut 9 on the protruding end of the positioning screw 8 can lock the filter drawer 7. At the same time, the rubber sealing ring 10 is squeezed and contracted by the limiting plate 72 and the recycling box 2, which improves the sealing performance of the filter drawer 7 installation.

[0050] Preferably, by Figure 1 and Figure 2 As shown, this embodiment also includes a handle 722, which is fixed to the outer wall of the limiting plate 72. With the above solution, the filter drawer 7 can be easily pulled out horizontally by the handle 722 during use.

[0051] Preferably, by Figure 1 and Figure 2 As shown, in this embodiment, the top of the filter drawer 7 is flush with the top of the recycling bin 2. With the above solution, when in use, the filter drawer 7 is a flat cuboid, with its height being equal to the inner cavity of the recycling bin 2, and its top being flush with the bottom surface of the top cover 3 of the recycling bin 2 (that is, the top of the filter drawer 7 and the top of the recycling bin 2 are on the same horizontal plane). The secondary filter holes 71 on the side are located in the middle and lower part of the side of the filter drawer 7.

[0052] With the above design, the inner cavity of the recycling box 2 is divided into an upper cavity (temporary storage area) and a lower cavity (cleaning ink area) by the filter drawer 7. The two are connected through a secondary filter hole 71, and the intercepted impurities are located in the filter drawer 7.

[0053] Centrifugal pump 5 pumps the filtrate from guide shroud 1 into the top inlet of recovery tank 2. The ink first enters the upper chamber temporary storage area. Large particles of impurities settle to the top of the drawer due to gravity (the flush design at the top maximizes the settling area). The ink permeates into the lower chamber cleaning area through secondary filter holes 71 (horizontal opening). The height of filter holes 71 is located at the interface between the upper and lower chambers, allowing only ink below the liquid level to pass through, thus preventing top scum from directly entering the lower chamber.

[0054] The suction port of centrifugal pump 4 is located at the lowest point of the bottom of the recovery tank 2. It draws out the clean ink (primary + secondary) that has undergone double filtration in the lower chamber to ensure the purity of the ink supply.

[0055] Preferably, by Figure 1 and Figure 4 As shown in this embodiment, a fixing hole 31 is provided on the top cover 3, and the top cover 3 is fixed to the top of the recycling bin 2 with bolts. With the above solution, it is convenient to install and disassemble the top cover 3 during use, and it is convenient to clean the internal space of the recycling bin 2.

[0056] Preferably, by Figure 1 As shown, this embodiment also includes a transparent window 21, which is embedded and fixed on the recycling bin 2. With the above solution, when in use, the transparent window 21 is vertically embedded in the front of the recycling bin 2, covering the secondary filter hole 71 area of ​​the filter drawer 7 (i.e. the interface between the upper and lower chambers), with the bottom edge flush with the bottom of the recycling bin 2 and the top close to the top cover 3.

[0057] The filter drawer 7 allows observation of the impurities inside and the ink in the recovery box 2, enabling determination of whether the filter drawer 7 needs cleaning or ink replenishment.

[0058] It should be noted that centrifugal pump 4 and centrifugal pump 5 are both commercially available conventional equipment with built-in power switches. Those skilled in the art can make conventional selections according to their needs. Their working principles are common knowledge known to those skilled in the art and have been fully disclosed in the prior art, so they will not be elaborated on further in this article.

[0059] The circuit connection involved in this utility model is a common method used by those skilled in the art, and technical inspiration can be obtained through a limited number of experiments. It belongs to the widely used prior art.

[0060] Components not described in detail in this article are existing technologies.

[0061] The working principle and usage process of this utility model: When in use, the circulation device of this utility model has an ink injection port on the top cover 3, through which initial ink is injected into the recycling box 2.

[0062] Turn on centrifugal pump 4 to pump the ink in the recovery box 2 to the ink nozzle of the printing press for normal printing. At the same time, turn on centrifugal pump 5 to create negative pressure in the guide shroud 1 to collect splashed or excess ink during printing.

[0063] The splashed ink first contacts the primary filter plate 6 inside the flow guide shroud 1. Large particles of impurities are intercepted by the primary filter holes 61, and the filtrate flows into the bottom of the flow guide shroud 1.

[0064] Centrifugal pump 5 pumps the filtrate in the guide shroud 1 to the recovery tank 2. The filtrate is filtered a second time through the secondary filter hole 71 of the filter drawer 7. Fine impurities are trapped and the clean ink flows into the bottom of the recovery tank 2. Centrifugal pump 4 draws the clean ink from the bottom of the recovery tank 2 and delivers it to the ink nozzle of the printing press through the pipeline to realize the recycling of ink.

[0065] This utility model forms a dual filtration system by setting a primary filter plate 6 and a filter drawer 7. This not only reduces the workload of the primary filter plate 6, but also allows filtration through the filter drawer 7 when the primary filter plate 6 is disassembled for cleaning, without the need to stop the machine, thus improving work efficiency. Since the filter drawer 7 has a box-shaped structure and a side opening, it does not require disassembly and maintenance in a short period of time.

[0066] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the 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 this utility model should be included within the protection scope of this utility model.

Claims

1. A continuous printing ink circulation device, comprising a flow guide (1) and a recycling bin (2) disposed on one side of the flow guide (1), wherein a top cover (3) is fixed to the top of the recycling bin (2), characterized in that, Also includes: Centrifugal pump No. 1 (4) is located on one side of the recycling tank (2), and the inlet of the centrifugal pump No. 1 (4) is connected to the recycling tank (2) by a pipe, and the outlet is connected to the ink nozzle of the printing machine by a pipe. Centrifugal pump No. 2 (5) is fixed to the top surface of the top cover (3), and the inlet of the centrifugal pump No. 2 (5) is connected to the flow guide (1) by a pipe, and the outlet is connected to the recovery box (2) by a pipe. Primary filter plate (6), which is detachably installed inside the flow guide (1), and primary filter holes (61) are machined on the primary filter plate (6). A filter drawer (7) is installed in the recycling bin (2) by a pull-out method, and a secondary filter hole (71) is processed on the side of the filter drawer (7). A disassembly port (22) for the filter drawer (7) to pass through is processed on the recycling bin (2). Also includes: Support frame (11), which is fixed inside the flow guide (1) and is used to support the primary filter plate (6). A first magnetic strip (12) is bonded and fixed to the top surface of the support frame (11); The second magnetic strip (13) is bonded and fixed to the bottom surface of the primary filter plate (6) and attracts the first magnetic strip (12); Also includes: A limiting plate (72) is fixed to the end of the filter drawer (7), and two symmetrically distributed positioning notches (721) are machined on the limiting plate (72). Positioning screws (8), two of the positioning screws (8) are symmetrically fixed to the outer wall of the recycling box (2) and penetrate the positioning notch (721); A wing nut (9) is installed on the extended end of the positioning screw (8) by means of thread engagement; Also includes: A rubber sealing ring (10) is bonded and fixed to the side of the limiting plate (72) facing the recycling box (2).

2. The printing ink continuous circulation device according to claim 1, characterized in that: Also includes: A handle (722) is fixed to the outer wall of the limiting plate (72).

3. The printing ink continuous circulation device according to claim 1, characterized in that: The top of the filter drawer (7) is flush with the top of the recycling bin (2).

4. The printing ink continuous circulation device according to claim 1, characterized in that: A fixing hole (31) is provided on the top cover (3), and the top cover (3) is fixed to the top of the recycling bin (2) with bolts.

5. The printing ink continuous circulation device according to claim 1, characterized in that: Also includes: A transparent window (21) is embedded and fixed on the recycling bin (2).

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