Printing ink filtering equipment

Abstract

The utility model relates to the technical field of printing ink production, in particular to printing ink filtering equipment which comprises a filtering tank, the top of the filtering tank is provided with an opening, at least three supporting legs arranged at intervals are installed on the edge of the bottom of the filtering tank, and a top cover is correspondingly installed on the top of the filtering tank through a flange. A driving motor is installed in the middle of the top end of the top cover, the bottom of the driving motor is connected with a rotating shaft, the rotating shaft penetrates through the top cover to be arranged in the filtering tank, the rotating shaft is rotationally connected with the top cover, the rotating shaft is a hollow pipe, and a plurality of feeding ports arranged at intervals are formed in the side face of the rotating shaft; and a filter cartridge is arranged below the rotating shaft. When the printing ink filtering equipment is used, waste materials with different particle sizes of printing ink are subjected to multi-stage filtering through the filtering cylinders and the filtering plates with different mesh numbers, and the speed that the filtering plates and the filtering cylinders are blocked by the waste materials is reduced, so that the filtering efficiency of the filtering equipment on the printing ink is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of printing ink production, in particular to a printing ink filtering device. Background Art

[0002] Ink is a uniform mixture of colored bodies, binders, fillers, additives and other substances; it can be printed and dried on the printed object; it is a colored, fluid slurry-like adhesive; therefore, color, body and drying properties are the three most important properties of ink.

[0003] When printing ink is produced, filtering equipment is needed to filter the printing ink. The ink is poured into the filter cartridge and filtered through the filter cartridge under high pressure or centrifugation. However, due to the different sizes of particles in the ink, if only a filter cartridge with a larger mesh size is used, it is easy to cause the filter cartridge to be covered by large particles, resulting in premature clogging, thereby affecting the normal filtration efficiency. Utility Model Content

[0004] The utility model aims to solve the above-mentioned shortcomings in the prior art and proposes a printing ink filtering device.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a printing ink filtering device is designed, including a filter tank, the top of which is open, at least three spaced support legs are installed at the bottom edge of the filter tank, and a top cover is correspondingly installed on the top of the filter tank through a flange;

[0006] A driving motor is installed at the middle of the top of the top cover, and a rotating shaft is connected to the bottom of the driving motor. The rotating shaft passes through the top cover and is placed in the filter tank. The rotating shaft is rotatably connected to the top cover, wherein the rotating shaft is a hollow tube, and a plurality of feed ports arranged at intervals are opened on the side of the rotating shaft;

[0007] A filter cartridge is provided below the rotating shaft, the top of the filter cartridge is threadedly connected to the bottom of the rotating shaft, and a frame with a cylindrical shape and a top bent outward is provided in the filter tank, the bottom of the frame is sealed, and the top of the frame is connected to the rotating shaft through a plurality of spaced connecting rods, and a filter plate is installed along the outer wall of the frame, wherein the mesh number of the filter plate is greater than that of the filter cartridge;

[0008] A feed pipe is installed on one side of the top cover, a conduit is connected to the bottom of the feed pipe, the other end of the conduit is installed on a sleeve, and the sleeve is sleeved on the rotating shaft and corresponds to the feed port, and the end of the sleeve is rotatably connected to the rotating shaft.

[0009] Preferably, a sleeve with a through hole at the top is vertically installed at the bottom of the frame, a support shaft is built into the top of the sleeve, the top of the support shaft corresponds to the bottom of the filter cartridge, and the support shaft and the inner wall clearance of the through hole are matched, and a compression spring is arranged in the sleeve, the bottom of the compression spring is fixed to the bottom of the sleeve, and the top of the compression spring is fixed to the bottom of the support shaft.

[0010] Preferably, a limit plate is coaxially installed at the bottom of the support shaft, and the edge of the limit plate is gap-matched with the inner wall of the sleeve.

[0011] Preferably, an annular seat is installed along the top inner wall of the filter tank, a plurality of first balls arranged at intervals are rollingly installed on the upper bottom of the frame, the first balls correspond to the top of the annular seat, and a plurality of second balls arranged at intervals are rollingly installed on the top of the outer wall of the frame, the second balls correspond to the inner wall of the annular seat.

[0012] Preferably, a vacuum pump is provided on one side of the filter tank, the vacuum pump is mounted on a support seat, and an exhaust pipe is connected to the inlet end of the vacuum pump, and the other end of the exhaust pipe is mounted on the top of the side of the filter tank.

[0013] Preferably, a pressure gauge is installed on the top of the top cover.

[0014] Preferably, the bottom of the filter tank is a downwardly convex arc surface, and a discharge pipe is installed at the bottom of the filter tank, and a valve is installed on the discharge pipe.

[0015] The design scheme proposed by the utility model has the following beneficial effects during application:

[0016] 1. The printing ink filtration equipment uses filter cartridges and filter plates with different mesh sizes to perform multi-stage filtration on waste materials with different particle sizes of ink, slowing down the rate at which filter plates and filter cartridges are blocked by waste materials, and increasing the use time of filter plates and filter cartridges in the filtration process, thereby improving the filtration efficiency of the filtration equipment for ink.

[0017] 2. The printing ink filtering equipment performs centrifugal operation on the ink entering therein by rotating the filter plate and the filter cartridge, thereby accelerating the filtration rate of the ink in the filter plate and the filter cartridge, thereby improving the filtration efficiency of the ink. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 The structure of the utility model is shown in FIG. Figure 1 ;

[0019] Figure 2 This is the front view of the internal structure of the utility model;

[0020] Figure 3 The structure of the utility model is shown in FIG. Figure 2 ;

[0021] Figure 4 This is a bottom structural diagram of the top cover of the utility model;

[0022] Figure 5 This is a diagram of the internal structure of the framework of the utility model;

[0023] Figure 6 It is an enlarged view of point A of the present utility model.

[0024] In the figure: 1. filter tank; 2. top cover; 3. feed pipe; 4. drive motor; 5. rotating shaft; 6. filter plate; 7. conduit; 8. sleeve; 9. feed port; 10. filter cartridge; 11. frame; 12. first ball; 13. second ball; 14. annular seat; 15. connecting rod; 16. supporting shaft; 17. sleeve; 18. through hole; 19. compression spring; 20. limit plate; 21. pressure gauge; 22. discharge pipe; 23. valve; 24. support leg; 25. exhaust pipe; 26. vacuum pump. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0026] Reference Figure 1-Figure 6 , a printing ink filtering device, comprising a filter tank 1, the top of the filter tank 1 is open, and at least three spaced support legs 24 are installed at the bottom edge of the filter tank 1;

[0027] A top cover 2 is correspondingly mounted on the top of the filter tank 1 via a flange, so that the top cover 2 can be easily removed from the top of the filter tank 1 .

[0028] like Figure 2 and Figure 5 As shown, a driving motor 4 is installed in the middle of the top of the top cover 2, and a rotating shaft 5 is connected to the bottom of the driving motor 4. The rotating shaft 5 passes through the top cover 2 and is placed in the filter tank 1. The rotating shaft 5 is rotatably connected to the top cover 2, and the driving motor 4 provides power for the rotation of the rotating shaft 5.

[0029] Among them, the rotating shaft 5 is a hollow tube, and a number of feed ports 9 are arranged at intervals on the side of the rotating shaft 5. A feed pipe 3 is installed on one side of the top of the top cover 2, and the bottom of the feed pipe 3 is connected to a conduit 7. The other end of the conduit 7 is installed on a sleeve 8, and the sleeve 8 is sleeved on the rotating shaft 5 and corresponds to the feed port 9, and the end of the sleeve 8 is rotatably connected to the rotating shaft 5, so that when the rotating shaft 5 rotates, it will not affect the setting of the conduit 7; in actual use, the bottom of the sleeve 8 corresponds to the bottom of the feed port 9, and the printing ink is poured from the feed pipe 3, allowing the ink to enter the sleeve 8 along the conduit 7, and finally flow into the rotating shaft 5 from the feed port 9 and flow downward.

[0030] A filter cartridge 10 is provided below the rotating shaft 5, and the ink flowing downward from the rotating shaft 5 will fall into the filter cartridge 10. The top of the filter cartridge 10 is threadedly connected to the bottom of the rotating shaft 5, which can facilitate the removal of the filter cartridge 10 from the rotating shaft 5 and allow the filter cartridge 10 to rotate with the rotating shaft 5, so that the ink falling into the filter cartridge 10 can be centrifugally filtered through the rotation of the filter cartridge 10; and a cylindrical frame 11 with an outwardly bent top is also provided in the filter tank 1, the bottom of the frame 11 is sealed, and the top of the frame 11 is connected to the rotating shaft 5 through a number of spaced connecting rods 15, and a filter plate 6 is installed along the outer wall of the frame 11, and the ink filtered from the filter cartridge 10 will enter the filter plate 6, and under the rotation of the filter plate 6, the ink is filtered for a second time, thereby performing a multi-stage filtering operation on the ink. Among them, the mesh number of the filter plate 6 is larger than that of the filter cartridge 10, and the large particles of waste in the ink will be filtered and retained in the filter cartridge 10, and then the small particles of waste will be blocked by the filter plate 6 at the filter plate 6, so that the waste will be filtered step by step with different particle sizes, which can not only conveniently reduce the premature clogging of the filtering equipment, but also improve the filtering effect of the filtering equipment on the ink.

[0031] In order to improve the stability of the filter cartridge 10 in the frame 11, Figure 6 As shown, a sleeve 17 with a through hole 18 on the top is vertically installed at the bottom of the frame 11, and a support shaft 16 is built into the top of the sleeve 17. The top of the support shaft 16 corresponds to the bottom of the filter cartridge 10, and the support shaft 16 is gap-matched with the inner wall of the through hole 18, and a compression spring 19 is arranged in the sleeve 17, the bottom of the compression spring 19 is fixed to the bottom of the sleeve 17, and the top of the compression spring 19 is fixed to the bottom of the support shaft 16. In actual use, the compression spring 19 is always in a compressed state, so that the compression spring 19 always pushes the support shaft 16 to have an upward movement tendency, thereby providing upward support for the bottom of the filter cartridge 10; when the filter cartridge 10 is disassembled, the support shaft 16 can be pressed into the sleeve 17 as the filter cartridge 10 is threadedly rotated, so that the filter cartridge 10 can be disengaged from the rotating shaft 5, so as to remove the filter cartridge 10 from the frame 11.

[0032] Specifically, in actual use, a sealing gasket is installed along the inner wall of the through hole 18, and the sealing gasket is tightly attached to the outer wall of the support shaft 16 to prevent ink from entering the sleeve 17 and affecting the function of the compression spring 19 or causing waste of ink.

[0033] Furthermore, a limit plate 20 is coaxially installed at the bottom of the support shaft 16, and the edge of the limit plate 20 is matched with the inner wall clearance of the sleeve 17 to limit the support shaft 16 in the sleeve 17 to prevent the support shaft 16 from being pushed out of the sleeve 17 due to the elastic force of the compression spring 19, thereby affecting the support of the support shaft 16 to the filter cartridge 10.

[0034] like Figure 2 and Figure 4 As shown, when the frame 11 rotates, since an annular seat 14 is installed along the top inner wall of the filter tank 1, a plurality of first balls 12 are rollingly installed at intervals on the bottom of the upper edge of the frame 11, and the first balls 12 correspond to the top of the annular seat 14, and a plurality of second balls 13 are rollingly installed at intervals on the top of the outer wall of the frame 11, and the second balls 13 correspond to the inner wall of the annular seat 14. The balls can provide support for the frame 11 along the top of the frame 11, so that the frame 11 is more stable when rotating.

[0035] It should be noted that the bottom of the filter tank 1 is a downwardly convex arc surface, and a discharge pipe 22 is installed at the bottom of the filter tank 1, and a valve 23 is installed on the discharge pipe 22; a pressure gauge 21 is installed on the top of the top cover 2, and a vacuum pump 26 is arranged on one side of the filter tank 1, the vacuum pump 26 is installed on the support seat, and the inlet end of the vacuum pump 26 is connected to the exhaust pipe 25, and the other end of the exhaust pipe 25 is installed on the top of the side of the filter tank 1. When filtering the ink, the vacuum pump 26 will extract the air in the filter tank 1 and transfer it to the outside, thereby performing a vacuum operation on the filter tank 1, so that the ink entering the filter cartridge 10 can pass through the filter cartridge 10 and the filter plate 6 faster under the action of pressure, thereby further improving the filtering efficiency of the ink.

[0036] Finally, the valve 23 is opened to allow the ink accumulated in the filter tank 1 after filtration to be discharged from the discharge pipe 22, so as to realize the ink discharge operation.

[0037] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A printing ink filtering device, characterized in that: The filter tank (1) comprises a filter tank (1), the top of which is open, at least three spaced support legs (24) are installed at the bottom edge of the filter tank (1), and a top cover (2) is correspondingly installed on the top of the filter tank (1) via a flange; A driving motor (4) is installed at the middle of the top of the top cover (2), and a rotating shaft (5) is connected to the bottom of the driving motor (4). The rotating shaft (5) passes through the top cover (2) and is placed in the filter tank (1), and the rotating shaft (5) is rotatably connected to the top cover (2), wherein the rotating shaft (5) is a hollow tube, and a plurality of feed ports (9) arranged at intervals are opened on the side of the rotating shaft (5); A filter cartridge (10) is provided below the rotating shaft (5), the top of the filter cartridge (10) being threadedly connected to the bottom of the rotating shaft (5), and a frame (11) which is cylindrical and has a top bent outward is also provided in the filter tank (1), the bottom of the frame (11) being sealed, and the top of the frame (11) being connected to the rotating shaft (5) via a plurality of spaced connecting rods (15), and a filter plate (6) being installed along the outer wall of the frame (11), wherein the mesh number of the filter plate (6) is greater than that of the filter cartridge (10); A feed pipe (3) is installed on one side of the top of the top cover (2), and a guide tube (7) is connected to the bottom of the feed pipe (3). The other end of the guide tube (7) is installed on a sleeve (8), and the sleeve (8) is sleeved on the rotating shaft (5) and corresponds to the feed port (9), and the end of the sleeve (8) is rotatably connected to the rotating shaft (5).

2. A printing ink filtering device according to claim 1, characterized in that: A sleeve (17) with a through hole (18) at the top is vertically installed at the bottom of the frame (11), a support shaft (16) is built into the top of the sleeve (17), the top of the support shaft (16) corresponds to the bottom of the filter cartridge (10), and the support shaft (16) and the inner wall of the through hole (18) are clearance-matched, and a compression spring (19) is arranged in the sleeve (17), the bottom of the compression spring (19) is fixed to the bottom of the sleeve (17), and the top of the compression spring (19) is fixed to the bottom of the support shaft (16).

3. A printing ink filtering device according to claim 2, characterized in that: A limiting plate (20) is coaxially mounted on the bottom of the support shaft (16), and the edge of the limiting plate (20) is clearance-matched with the inner wall of the sleeve (17).

4. A printing ink filtering device according to claim 1, characterized in that: An annular seat (14) is installed along the inner wall of the top of the filter tank (1), a plurality of first balls (12) arranged at intervals are rollingly installed on the bottom of the upper edge of the frame (11), the first balls (12) correspond to the top of the annular seat (14), and a plurality of second balls (13) are rollingly installed on the top of the outer wall of the frame (11), the second balls (13) correspond to the inner wall of the annular seat (14).

5. A printing ink filtering device according to claim 1, characterized in that: A vacuum pump (26) is provided on one side of the filter tank (1). The vacuum pump (26) is mounted on a support seat. An air extraction pipe (25) is connected to the inlet end of the vacuum pump (26). The other end of the air extraction pipe (25) is mounted on the top of the side of the filter tank (1).

6. A printing ink filtering device according to claim 5, characterized in that: A pressure gauge (21) is installed on the top of the top cover (2).

7. A printing ink filtering device according to claim 1, characterized in that: The bottom of the filter tank (1) is a downwardly convex arc surface, and a discharge pipe (22) is installed at the bottom of the filter tank (1), and a valve (23) is installed on the discharge pipe (22).

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