CN210057530U - Efficient offset printing fountain solution filtering device - Google Patents

Abstract

The utility model relates to the technical field of auxiliary devices of printing technology, in particular to a high-efficiency offset printing fountain solution filtering device, which comprises four groups of supporting legs, a filtering tank, a first feeding pipe, a discharging pipe, a first valve, a second valve and a filtering plate; still include second inlet pipe, third valve, connecting axle, motor, the left stirring leaf of multiunit, the right stirring leaf of multiunit, left fixed plate, right fixed plate, the left brush hair of multiunit, the right brush hair of multiunit, left scum pipe, right scum pipe, fourth valve, fifth valve and controlling means, the utility model discloses a high-efficient offset printing fountain solution filter equipment, the accumulation of reducible filter plate surface impurity improves the filtration rate of fountain solution, improves work efficiency.

Description

Efficient offset printing fountain solution filtering device

Technical Field

The utility model relates to a printing technology auxiliary device's technical field especially relates to a high-efficient offset printing fountain solution filter equipment.

Background

As is well known, fountain solution is an indispensable chemical assistant used in the printing process, which forms a uniform water film in the printing blank part to resist the ink on the image and text from infiltrating into the blank part and prevent the printing from being dirty, and a high-efficiency offset printing fountain solution filtering device is a device for filtering the fountain solution used in the offset printing process to remove impurities in the production process of the fountain solution and obtain finished fountain solution, and is widely used in the field of printing technology; the existing high-efficiency offset printing fountain solution filtering device comprises four groups of supporting legs, a filtering tank, a first feeding pipe, a discharging pipe, a first valve, a second valve and a filtering plate, wherein the top ends of the four groups of supporting legs are respectively connected with the left front side, the left rear side, the right front side and the right rear side of the bottom surface of the filtering tank; when the existing high-efficiency offset printing fountain solution filtering device is used, a first valve is opened, the fountain solution to be filtered flows into a filtering tank from a first feeding pipe, the fountain solution entering the filtering tank flows through a filtering plate, impurities in the fountain solution are intercepted on the top surface of the filtering plate by the filtering plate, the fountain solution flowing down from the filtering plate is finished fountain solution, a second valve is opened, and the finished fountain solution is discharged from a discharging pipe; the existing high-efficiency offset printing fountain solution filtering device finds that impurities on the filter plate are gradually accumulated in the using process of the filtering device, so that the filtering rate of the filter plate to fountain solution is reduced, and the working efficiency is reduced.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides an accumulation of reducible filter plate surface impurity improves the filtration rate of fountain solution, improves work efficiency's high-efficient offset printing fountain solution filter equipment.

The utility model discloses a high-efficient offset printing fountain solution filter equipment, including four group's landing legs, filter jar, first inlet pipe, discharging pipe, first valve, second valve and filter plates, four group's landing leg tops are connected with filter jar bottom surface left front side, left rear side, right front side and right rear side respectively, the filter jar is inside to be provided with the storage chamber, first inlet pipe bottom output and discharging pipe top input communicate with filter jar top surface left half regional and bottom surface central zone respectively, first valve and second valve are installed respectively on first inlet pipe and discharging pipe, the filter plate is installed in the filter jar inside first region and will be filtered the jar and separate into upper and lower two independent cavities; the automatic feeding device also comprises a second feeding pipe, a third valve, a connecting shaft, a motor, a plurality of groups of left stirring blades, a plurality of groups of right stirring blades, a left fixed plate, a right fixed plate, a plurality of groups of left bristles, a plurality of groups of right bristles, a left slag discharge pipe, a right slag discharge pipe, a fourth valve, a fifth valve and a control device, wherein the output end of the bottom end of the second feeding pipe is communicated with the right half area of the top surface of the filtering tank, the third valve is arranged on the second feeding pipe, the bottom end of the connecting shaft penetrates through the central area of the top surface of the filtering tank, the top end of the connecting shaft is connected with the output end of the bottom end of the motor, the bottom end of the motor is detachably connected with the central area of the top surface of the filtering tank, the right ends of the left stirring blades and the right stirring blades are respectively connected with the left side wall and the right side wall of the connecting shaft, the right end of the left fixed plate and the left, the bottom of the left brush hair of multiunit and the bottom of the right brush hair of multiunit all contact with the filter plate top surface, left side scum pipe right-hand member input and right scum pipe left end input respectively with filter tank left side wall first half regional with right side wall first half regional intercommunication, fourth valve and fifth valve are installed respectively on left scum pipe and right scum pipe, left scum pipe and right scum pipe are located the filter plate upside and contact with the filter plate, controlling means right side wall and filter tank left side wall first half regional connection, the motor is connected with the controlling means electricity.

The utility model discloses a high-efficient offset printing fountain solution filter equipment still includes the bottom plate, the bottom plate bottom surface is connected with the interior diapire of filtration jar, and bottom plate central region vertically is provided with round platform shape recess, discharging pipe top input and bottom plate bottom surface central region intercommunication.

The utility model discloses a high-efficient offset printing fountain solution filter equipment, left side scum pipe is the angle of downside slope left, and right scum pipe is the angle of downside slope right.

The utility model discloses a high-efficient offset printing fountain solution filter equipment still includes left branch vaulting pole, right branch vaulting pole, left branch vaulting pole and right branch vaulting pole, left branch vaulting pole bottom and right branch vaulting pole bottom respectively with filter tank top surface left side half regional and right half regional connection, left branch vaulting pole top and right branch vaulting pole top respectively with left branch vaulting pole bottom surface central authorities regional with right branch vaulting pole bottom surface central authorities regional connection, left branch vaulting pole top surface and right branch vaulting pole top surface central authorities are regional to be provided with first half convex opening and second half circular arc opening respectively.

The utility model discloses a high-efficient offset printing fountain solution filter equipment still includes transparent observation plate, it is provided with first rectangular hole to filter jar right side wall first region, transparent observation plate is installed on first rectangular hole.

The utility model discloses a high-efficient offset printing fountain solution filter equipment still includes four anti-skidding bases of group, four anti-skidding bases of group are installed respectively on four landing legs of group.

The utility model discloses a high-efficient offset printing fountain solution filter equipment still includes left connecting rod, right connecting rod, left inserted bar, right inserted bar, left slider and right slider, left side connecting rod right-hand member and right connecting rod left end are connected with connecting axle left side wall first region and right side wall first region respectively, and left side connecting rod left end and right connecting rod right-hand member are connected with left inserted bar right side wall second region and right inserted bar left side wall second region respectively, it is provided with the annular chamber to filter jar interior roof central zone, filters jar bottom surface central zone and is provided with annular opening, and annular opening communicates with each other with the annular chamber, inside left inserted bar top and right inserted bar top all inserted the annular chamber from the annular opening, left inserted bar top and right inserted bar top were connected with left slider bottom and right slider bottom respectively.

The utility model discloses a high-efficient offset printing fountain solution filter equipment, the left stirring leaf of multiunit and the right stirring leaf material of multiunit are the stainless steel.

Compared with the prior art, the beneficial effects of the utility model are that: opening the first valve and the third valve, allowing fountain solution to be filtered to flow into the filtering tank from the first feeding pipe and the second feeding pipe, allowing the fountain solution to flow through the filtering plate, intercepting impurities in the fountain solution on the top surface of the filtering plate by the filtering plate, allowing the fountain solution flowing down from the filtering plate to be finished fountain solution, opening the second valve, and discharging the finished fountain solution from the discharging pipe, opening the motor by the control device when the first valve and the third valve are opened to filter the fountain solution, allowing the motor to drive the connecting shaft to rotate, allowing the rotating connecting shaft to drive the left stirring blades and the right stirring blades to rotate, accelerating the flow rate of the fountain solution on the filtering plate, allowing the fountain solution to flow down from the filtering plate, allowing the connecting shaft to drive the left fixing plate and the right fixing plate to rotate when the connecting shaft rotates, allowing the left bristles and the right bristles to rotate on the filtering plate, and sweeping the impurities on the filtering plate to the marginal area, after dampening liquid filters, opens fourth valve and fifth valve for impurity on the filter plate from left row sediment pipe and right row sediment pipe discharge can, the accumulation of reducible filter plate surface impurity improves the filtration rate of dampening liquid, improves work efficiency.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

FIG. 2 is an enlarged view of a portion A of FIG. 1;

FIG. 3 is a partial enlarged view of portion B of FIG. 1;

FIG. 4 is a schematic structural view of the left plate;

in the drawings, the reference numbers: 1. a support leg; 2. a filter tank; 3. a first feed tube; 4. a discharge pipe; 5. A first valve; 6. a second valve; 7. filtering the plate; 8. a second feed tube; 9. a third valve; 10. a connecting shaft; 11. a motor; 12. a left stirring blade; 13. a right stirring blade; 14. a left fixing plate; 15. a right fixing plate; 16. left bristles; 17. a right bristle; 18. a left slag discharge pipe; 19. A right slag discharge pipe; 20. a fourth valve; 21. a fifth valve; 22. a control device; 23. a base plate; 24. a left support bar; 25. a right support bar; 26. a left support plate; 27. a right support plate; 28. a transparent viewing plate; 29. an anti-slip base; 30. a left connecting rod; 31. a right connecting rod; 32. a left inserted link; 33. A right insertion rod; 34. a left slider; 35. and a right slider.

Detailed Description

The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

As shown in fig. 1 to 4, the utility model discloses a high-efficient offset printing fountain solution filter equipment, including four groups of landing legs 1, filter tank 2, first inlet pipe 3, discharging pipe 4, first valve 5, second valve 6 and filter plate 7, four groups of landing legs 1 top are connected with filter tank 2 bottom surface left front side, left rear side, right front side and right rear side respectively, filter tank 2 is inside to be provided with the storage chamber, first inlet pipe 3 bottom output and discharging pipe 4 top input communicate with filter tank 2 top surface left half region and bottom surface central zone respectively, first valve 5 and second valve 6 are installed respectively on first inlet pipe 3 and discharging pipe 4, filter plate 7 is installed in filter tank 2 inside upper half region and will filter tank 2 separate into two upper and lower independent cavities; the device also comprises a second feeding pipe 8, a third valve 9, a connecting shaft 10, a motor 11, a plurality of groups of left stirring blades 12, a plurality of groups of right stirring blades 13, a left fixing plate 14, a right fixing plate 15, a plurality of groups of left bristles 16, a plurality of groups of right bristles 17, a left slag discharge pipe 18, a right slag discharge pipe 19, a fourth valve 20, a fifth valve 21 and a control device 22, wherein the output end at the bottom end of the second feeding pipe 8 is communicated with the right half area of the top surface of the filter tank 2, the third valve 9 is arranged on the second feeding pipe 8, the bottom end of the connecting shaft 10 penetrates through the central area of the top surface of the filter tank 2, the top end of the connecting shaft 10 is connected with the output end at the bottom end of the motor 11, the bottom end of the motor 11 is detachably connected with the central area of the top surface of the filter tank 2, the right ends of the plurality of groups of left stirring blades 12 and the left ends of the plurality of right stirring blades, the top ends of a plurality of groups of left bristles 16 and the top ends of a plurality of groups of right bristles 17 are respectively connected with the bottom surface of a left fixing plate 14 and the bottom surface of a right fixing plate 15, the bottom ends of a plurality of groups of left bristles 16 and the bottom ends of a plurality of groups of right bristles 17 are respectively contacted with the top surface of a filter plate 7, the right end input end of a left slag discharge pipe 18 and the left end input end of a right slag discharge pipe 19 are respectively communicated with the upper half area of the left side wall and the upper half area of the right side wall of the filter tank 2, a fourth valve 20 and a fifth valve 21 are respectively arranged on the left slag discharge pipe 18 and the right slag discharge pipe 19, the left slag discharge pipe 18 and the right slag discharge pipe 19 are positioned on the upper side of the filter plate 7 and are contacted with the; opening the first valve and the third valve, allowing fountain solution to be filtered to flow into the filtering tank from the first feeding pipe and the second feeding pipe, allowing the fountain solution to flow through the filtering plate, intercepting impurities in the fountain solution on the top surface of the filtering plate by the filtering plate, allowing the fountain solution flowing down from the filtering plate to be finished fountain solution, opening the second valve, and discharging the finished fountain solution from the discharging pipe, opening the motor by the control device when the first valve and the third valve are opened to filter the fountain solution, allowing the motor to drive the connecting shaft to rotate, allowing the rotating connecting shaft to drive the left stirring blades and the right stirring blades to rotate, accelerating the flow rate of the fountain solution on the filtering plate, allowing the fountain solution to flow down from the filtering plate, allowing the connecting shaft to drive the left fixing plate and the right fixing plate to rotate when the connecting shaft rotates, allowing the left bristles and the right bristles to rotate on the filtering plate, and sweeping the impurities on the filtering plate to the marginal area, after dampening liquid filters, opens fourth valve and fifth valve for impurity on the filter plate from left row sediment pipe and right row sediment pipe discharge can, the accumulation of reducible filter plate surface impurity improves the filtration rate of dampening liquid, improves work efficiency.

The utility model discloses a high-efficient offset printing fountain solution filter equipment, still include bottom plate 23, bottom plate 23 bottom surface is connected with the bottom wall in the filter tank 2, bottom plate 23 central area vertically is provided with round platform shape recess, 4 top inputs of discharging pipe communicate with bottom plate 23 bottom surface central area; fountain solution flowing down from the filter plate falls into the circular truncated cone-shaped groove and is discharged from the discharge pipe, and accumulation of the fountain solution in the filter tank is reduced.

The utility model discloses a high-efficiency offset printing fountain solution filtering device, a left deslagging pipe 18 is inclined towards the lower left side, and a right deslagging pipe 19 is inclined towards the lower right side; the left slag discharging pipe and the right slag discharging pipe are provided with inclined angles, so that impurities on the filter plate can be conveniently discharged from the left slag discharging pipe and the right slag discharging pipe.

The utility model discloses a high-efficient offset printing fountain solution filter equipment, still include left branch vaulting pole 24, right branch vaulting pole 25, left branch vaulting pole 26 and right branch vaulting pole 27, the left branch vaulting pole 24 bottom and the right branch vaulting pole 25 bottom are connected with the left half region and the right half region of the top surface of filter tank 2 respectively, the left branch vaulting pole 24 top and the right branch vaulting pole 25 top are connected with the central region in the bottom surface of left branch vaulting pole 26 and the central region in the bottom surface of right branch vaulting pole 27 respectively, the central region in the top surface of left branch vaulting pole 26 and the top surface of right branch vaulting pole 27; the first feeding pipe and the second feeding pipe can be lapped on the left supporting plate and the right supporting plate, and winding and knotting of the first feeding pipe and the second feeding pipe are reduced.

The utility model discloses a high-efficiency offset printing fountain solution filtering device, which also comprises a transparent observation plate 28, the upper half area of the right side wall of the filtering tank 2 is provided with a first rectangular hole, and the transparent observation plate 28 is arranged on the first rectangular hole; the transparent observation board of accessible observation is observed the impurity on the filter plate and is deposited the condition, is convenient for in time open fourth valve and fifth valve in order to clear up the impurity on the filter plate.

The utility model discloses a high-efficiency offset printing fountain solution filtering device, which also comprises four groups of anti-skid bases 29, wherein the four groups of anti-skid bases 29 are respectively arranged on four groups of supporting legs 1; the four groups of anti-slip bases can reduce the slip of the four groups of supporting legs on the ground, and the use stability is improved.

The utility model discloses a high-efficient offset printing fountain solution filter equipment, still include left connecting rod 30, right connecting rod 31, left inserted bar 32, right inserted bar 33, left slider 34 and right slider 35, left connecting rod 30 right-hand member and right connecting rod 31 left end are connected with connecting axle 10 left side wall first region and right side wall first region respectively, left connecting rod 30 left-hand member and right connecting rod 31 right-hand member are connected with left inserted bar 32 right side wall second region and right inserted bar 33 left side wall second region respectively, the central region of roof is provided with the annular chamber in the filter jar 2, filter jar 2 bottom surface central region is provided with annular opening, annular opening and annular chamber communicate, left inserted bar 32 top and right inserted bar 33 top are all inserted inside the annular chamber from the annular opening, left inserted bar 32 top and right inserted bar 33 top are connected with left slider 34 bottom and right slider 35 bottom respectively; when the motor drives the connecting axle rotatory, the connecting axle drives left inserted bar and right inserted bar at the annular chamber internal rotation through left connecting rod and right connecting rod, and left slider and right slider are all blocked at annular opening part, play the supporting role to the connecting axle, reduce connecting axle, the left stirring leaf of multiunit, the right stirring leaf of multiunit, left fixed plate and right fixed plate and to the decurrent effort of motor, improve stability in use.

The utility model discloses a high-efficient offset printing fountain solution filter equipment, the left stirring leaf 12 of multiunit and the right stirring leaf 13 material of multiunit are the stainless steel.

The utility model discloses a high-efficient offset printing fountain solution filter equipment, it is at work, open first valve and third valve, the fountain solution that waits to filter flows into the inside of filtering tank from first inlet pipe and second inlet pipe, the fountain solution that gets into the inside of filtering tank flows through the filter plate, the impurity in the fountain solution is held up at the filter plate top surface by the filter plate, the fountain solution that flows down from the filter plate is finished product fountain solution, open the second valve, finished product fountain solution is discharged from the discharging pipe, when opening first valve and third valve and filtering the fountain solution, open the motor through controlling means, the motor drives the connecting axle to rotate, rotatory connecting axle drives multiunit left stirring leaf and multiunit right stirring leaf to rotate, accelerate the flow rate of fountain solution on the filter plate, accelerate the fountain solution to flow down from the filter plate, when the connecting axle rotates, drive left fixed plate and right fixed plate to rotate, the multiple groups of left bristles and the multiple groups of right bristles rotate on the upper side of the filter plate and sweep impurities on the filter plate to the edge area of the filter plate, and after the dampening solution is filtered, the fourth valve and the fifth valve are opened, so that the impurities on the filter plate can be discharged from the left slag discharge pipe and the right slag discharge pipe, the accumulation of the impurities on the surface of the filter plate can be reduced, the filtering rate of the dampening solution is improved, and the working efficiency is improved; dampening solution flowing down from the filter plate falls into the circular truncated cone-shaped groove and is discharged from the discharge pipe, so that the accumulation of the dampening solution in the filter tank is reduced; the left slag discharge pipe and the right slag discharge pipe have inclined angles, so that impurities on the filter plate can be conveniently discharged from the left slag discharge pipe and the right slag discharge pipe; the first feeding pipe and the second feeding pipe can be lapped on the left supporting plate and the right supporting plate, so that the first feeding pipe and the second feeding pipe are prevented from being wound and knotted; the accumulation condition of the impurities on the filter plate can be observed through the transparent observation plate, so that the fourth valve and the fifth valve can be opened in time to clean the impurities on the filter plate; the four groups of anti-slip bases can reduce the slip of the four groups of supporting legs on the ground, thereby improving the use stability; when the motor drives the connecting axle rotatory, the connecting axle drives left inserted bar and right inserted bar at the annular chamber internal rotation through left connecting rod and right connecting rod, and left slider and right slider are all blocked at annular opening part, play the supporting role to the connecting axle, reduce connecting axle, the left stirring leaf of multiunit, the right stirring leaf of multiunit, left fixed plate and right fixed plate and to the decurrent effort of motor, improve stability in use.

The utility model discloses used motor purchase in the market according to the service instruction of wearing with can.

The above is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.

Claims (8)

1. A high-efficiency offset printing fountain solution filtering device comprises four groups of supporting legs (1), a filtering tank (2), a first feeding pipe (3), a discharging pipe (4), a first valve (5), a second valve (6) and a filter plate (7), the top ends of the four groups of supporting legs (1) are respectively connected with the left front side, the left rear side, the right front side and the right rear side of the bottom surface of the filtering tank (2), a storage cavity is arranged inside the filtering tank (2), the output end of the bottom end of the first feeding pipe (3) and the input end of the top end of the discharging pipe (4) are respectively communicated with the left half area and the central area of the bottom surface of the filtering tank (2), the first valve (5) and the second valve (6) are respectively arranged on the first feeding pipe (3) and the discharging pipe (4), and the filter plate (7) is arranged in the upper half area inside the filtering tank (2) and divides the filtering tank (2) into an upper cavity and a lower cavity; it is characterized by also comprising a second feeding pipe (8), a third valve (9), a connecting shaft (10), a motor (11), a plurality of groups of left stirring blades (12), a plurality of groups of right stirring blades (13), a left fixing plate (14), a right fixing plate (15), a plurality of groups of left bristles (16), a plurality of groups of right bristles (17), a left slag discharge pipe (18), a right slag discharge pipe (19), a fourth valve (20), a fifth valve (21) and a control device (22), wherein the bottom end output end of the second feeding pipe (8) is communicated with the right half area of the top surface of the filter tank (2), the third valve (9) is arranged on the second feeding pipe (8), the bottom end of the connecting shaft (10) penetrates through the central area of the top surface of the filter tank (2), the top end of the connecting shaft (10) is connected with the bottom end output end of the motor (11), the bottom end of the motor (11), the left end of the left stirring blade (12) and the left end of the right stirring blade (13) are respectively connected with the left side wall and the right side wall of the connecting shaft (10), the right end of the left fixing plate (14) and the left end of the right fixing plate (15) are respectively connected with the lower half area of the left side wall and the lower half area of the right side wall of the connecting shaft (10), the top ends of the left brush bristles (16) and the right brush bristles (17) are respectively connected with the bottom surface of the left fixing plate (14) and the bottom surface of the right fixing plate (15), the bottom ends of the left brush bristles (16) and the right brush bristles (17) are respectively contacted with the top surface of the filter plate (7), the right end input end of the left slag discharging pipe (18) and the left end input end of the right slag discharging pipe (19) are respectively communicated with the upper half area of the left side wall and the upper half area of the right side wall of the filter tank (2), and the fourth valve (20) and the fifth valve (21) are respectively installed, the left slag discharge pipe (18) and the right slag discharge pipe (19) are positioned on the upper side of the filter plate (7) and are in contact with the filter plate (7), the right side wall of the control device (22) is connected with the upper half area of the left side wall of the filter tank (2), and the motor (11) is electrically connected with the control device (22).

2. The offset printing fountain solution filtering apparatus according to claim 1, further comprising a bottom plate (23), wherein the bottom surface of the bottom plate (23) is connected to the bottom wall of the filter tank (2), a central region of the bottom plate (23) is longitudinally provided with a truncated cone-shaped groove, and the top end input end of the discharge pipe (4) is communicated with the central region of the bottom surface of the bottom plate (23).

3. The offset printing fountain solution filter apparatus of claim 2, wherein the left residue discharge pipe (18) is inclined at an angle toward the lower left side, and the right residue discharge pipe (19) is inclined at an angle toward the lower right side.

4. The device for filtering the fountain solution for offset printing according to claim 3, further comprising a left support bar (24), a right support bar (25), a left support plate (26) and a right support plate (27), wherein the bottom end of the left support bar (24) and the bottom end of the right support bar (25) are respectively connected with the left half area and the right half area of the top surface of the filter tank (2), the top end of the left support bar (24) and the top end of the right support bar (25) are respectively connected with the central area of the bottom surface of the left support plate (26) and the central area of the bottom surface of the right support plate (27), and the central areas of the top surface of the left support plate (26) and the top surface of the right support plate (27) are respectively provided with a first semicircular arc-shaped notch.

5. The offset printing fountain solution filtering device according to claim 4, further comprising a transparent viewing plate (28), wherein the filter tank (2) has a first rectangular hole formed in an upper half area of a right side wall thereof, and the transparent viewing plate (28) is fitted over the first rectangular hole.

6. The offset printing fountain solution filtering device according to claim 5, further comprising four sets of anti-slip bases (29), wherein the four sets of anti-slip bases (29) are respectively mounted on the four sets of legs (1).

7. The high efficiency offset printing fountain solution filtering device according to claim 6, further comprising a left connecting rod (30), a right connecting rod (31), a left insert rod (32), a right insert rod (33), a left slider (34) and a right slider (35), wherein the right end of the left connecting rod (30) and the left end of the right connecting rod (31) are respectively connected with the upper half area of the left side wall and the upper half area of the right side wall of the connecting shaft (10), the left end of the left connecting rod (30) and the right end of the right connecting rod (31) are respectively connected with the lower half area of the right side wall of the left insert rod (32) and the lower half area of the left side wall of the right insert rod (33), the central area of the inner top wall of the filter tank (2) is provided with an annular cavity, the central area of the bottom surface of the filter tank (2) is provided with an annular opening, the annular opening is communicated with the annular cavity, the top end of the left insert rod (32) and the top end, the top end of the left inserted bar (32) and the top end of the right inserted bar (33) are respectively connected with the bottom end of the left sliding block (34) and the bottom end of the right sliding block (35).

8. The filtering device for fountain solution for offset printing according to claim 7, wherein the left stirring vanes (12) and the right stirring vanes (13) are made of stainless steel.

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