Waste printing ink recycling device

Abstract

The utility model belongs to the technical field of waste printing ink recycling, and particularly relates to a waste printing ink recycling device which comprises a recycling box, a filter screen plate is arranged in the recycling box, fixing plates are fixedly connected to the inner walls of the four sides of the recycling box in a matched mode, a through opening is formed in each fixing plate, and a flow guide hopper is fixedly connected to the end opening of each through opening. The bottom end opening of the flow guide hopper is fixedly connected to an outer cylinder, fixing blocks are installed on the inner walls of the four sides of the recycling box, the four fixing blocks are fixedly connected with the outer cylinder in a matched mode, a rotating cylinder is rotatably installed in the outer cylinder, and the bottom end of the circumferential face of the rotating cylinder is sleeved with a limiting plate. When the waste ink recycling device is used, waste ink is recycled, large and small particle impurities in oil can be effectively removed through multi-stage filtering, the quality of the recycled ink is guaranteed, the ink with the impurities removed has better flowability and stability, faults and waste in the printing process can be reduced, and the waste ink recycling device is worthy of popularization and application. The quality of printed matters is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of waste printing ink recovery, in particular to a waste printing ink recovery and processing device. Background Art

[0002] Ink is an important material used in printing. During the ink printing process, the printing roller is dipped in ink for printing. Since the printing roller rotates very fast, a lot of ink will be thrown off. If the thrown ink cannot be recovered well, it will cause a lot of waste and increase the printing cost. Therefore, it is necessary to use ink recovery equipment to recycle the waste ink.

[0003] A Chinese patent with announcement number CN208161119U discloses a printing press ink recovery device, including an ink cartridge on a printing press, an oil outlet pipe is provided under the printing press, the bottom of the oil outlet pipe is connected to an ink recovery pipe, a nozzle is provided at the end of the ink recovery pipe, an ink recovery barrel is provided under the nozzle, a heater is provided at the bottom of the ink recovery barrel, an intelligent controller is provided outside the ink recovery barrel, the intelligent controller is connected to the heater, and an oil pump is connected to one side of the ink recovery barrel; the purpose of the utility model is to provide a printing press ink recovery device, which can reuse ink, greatly save resources and reduce printing costs.

[0004] The existing waste printing ink recovery device, when recovering ink, only uses a single filter plate for filtering, lacks a multi-stage filtration system, and can only filter out large particle impurities in the ink, but cannot remove tiny particles in the ink. The presence of tiny particle impurities will have a negative impact on the performance of the ink, such as reducing the fluidity of the ink, increasing the viscosity or causing uneven color, etc., which will affect the quality of subsequent printed products; therefore, a waste printing ink recovery and processing device is proposed to address the above problems. Utility Model Content

[0005] In order to make up for the deficiencies of the prior art and solve the problems raised by the above-mentioned background technology, the utility model proposes a waste printing ink recovery and processing device.

[0006] The technical solution adopted by the utility model to solve its technical problems is as follows: the waste printing ink recycling and processing device described in the utility model comprises a recycling box, a filter screen plate is arranged in the recycling box, the inner walls of the four sides of the recycling box are cooperated and fixedly connected with a fixing plate, a through opening is opened on the fixing plate, a guide bucket is fixedly connected at the port of the through opening, the bottom port of the guide bucket is fixedly connected to the outer cylinder, fixing blocks are installed on the inner walls of the four sides of the recycling box, the four fixing blocks are cooperated and fixedly connected with the outer cylinder, a rotating cylinder is rotatably installed in the outer cylinder, a limiting plate is sleeved on the bottom end of the circumferential surface of the rotating cylinder, a fixing plate is fixedly connected on the top inner wall of the outer cylinder, a rotating ring is rotatably installed in the fixing plate, and the rotating ring is sleeved on the outer circumferential surface of the rotating cylinder, four supporting rods are fixedly connected to the bottom end of the outer cylinder, and a first motor is cooperated and installed on the four supporting rods, the output end of the first motor is connected with a rotating column, and the top end of the rotating column is fixedly connected to the rotating cylinder The bottom side of the outer cylinder is provided with a plurality of oil leakage ports at the bottom end of the outer cylinder. When the ink is recovered, the filter screen can filter and remove large particles of impurities in the ink, so that the ink without large particles of impurities flows into the rotating cylinder through the filter holes, and the first motor is started to rotate the rotating cylinder. Through the high-speed rotation of the rotating cylinder, the liquid and fine particles in the ink are subjected to different centrifugal forces. Under the action of centrifugal force, the fine particles and liquid in the ink are separated, so that the fine particles are left on the inner wall of the rotating cylinder, and the oil flows into the outer cylinder through the guide holes on the rotating cylinder, and then flows into the bottom of the oil collecting tank through the oil leakage ports, thereby not only realizing the recovery of the waste ink, but also through multi-stage filtration, it can effectively remove large and small particles of impurities in the oil, which helps to ensure the quality of the recycled ink, and the ink after removing impurities has better fluidity and stability, which can reduce failures and waste in the printing process and improve the quality of printed products.

[0007] Preferably, four L-shaped plates are fixedly connected to the rotating ring, four square blocks are fixedly connected to the inner wall of the bottom end of the rotating cylinder, each square block is correspondingly arranged directly below the L-shaped plate, a second motor is installed on the two L-shaped plates, a screw rod is connected to the output end of the second motor, and the bottom end of the screw rod is rotatably installed on the square block, the two screw rods are matched with an annular scraper, and the annular scraper is in contact with the outer side wall of the rotating cylinder, and a guide rod is fixedly connected between the other two L-shaped plates and the corresponding square blocks, and the guide rod passes through the annular scraper. The bottom end of the rotating drum is connected with a slag discharge pipe, on which a one-way valve is installed. After the device has been used for a period of time, a large number of fine particles are accumulated on the inner wall of the rotating drum. When cleaning, the second motor is started to rotate the screw rod, and the annular scraper moves along the inner wall of the rotating drum with the cooperation of the guide rod, so that the impurities on the inner wall of the rotating drum can be scraped and cleaned, and the fine particle impurities after scraping and cleaning are discharged through the slag discharge pipe, so that the rotating drum can be cleaned regularly to avoid blockage and ensure the subsequent filtering effect.

[0008] Preferably, the bottom end of the recovery box is fixedly connected to an oil collecting tank, a third motor is installed at the bottom end of one side of the recovery box, the output end of the third motor is connected to a rotating rod, a spiral conveying blade is fixed on the outer surface of the rotating rod, and the spiral conveying blade is arranged in the oil collecting tank, and the bottom end of one side of the recovery box away from the third motor is connected to an oil drain pipe. When the device is used, the oil after multi-stage filtration will fall into the oil collecting tank, and the third motor is started to rotate the spiral conveying blade. Through the rotation of the spiral conveying blade, the oil can be stirred to increase its fluidity, and the oil can be transported so that the oil is discharged through the oil drain pipe, thereby realizing the recycling of resources.

[0009] Preferably, a support frame is fixedly connected to the side wall of the recovery box, and a pneumatic cylinder is installed on the support frame. The active end of the pneumatic cylinder is equipped with a pneumatic rod, and the end of the pneumatic rod is fixedly connected to a scraper, and the scraper contacts the outer surface of the filter screen. A slag discharge port is opened on the side wall of the recovery box, and both sides of the port of the slag discharge port are fixedly connected to limiting slide rails, and a sealing cover plate is slidably installed on the two limiting slide rails. After the device has been used for a period of time, more impurities will accumulate on the filter screen. When cleaning, the pneumatic cylinder is started to make the pneumatic rod drive the scraper to move, so that the impurities accumulated on the filter screen can be scraped off and discharged through the slag discharge port, so that the filter screen can be cleaned regularly to avoid blockage and ensure the subsequent filtering effect.

[0010] Preferably, a support seat is installed at the top of the recovery box, and a pump body is installed on the support seat. The input hole of the pump body is connected to an oil extraction pipeline, and the output hole of the pump body is connected to an oil outlet pipe. When the ink is recovered, the pipe mouth of the oil extractable pipeline is placed in the waste ink, and the pump body is started to extract the waste oil in the waste ink through the oil extraction pipeline, and the waste ink is transported to the recovery box through the oil outlet pipe.

[0011] The utility model is beneficial in that:

[0012] 1. When the utility model recycles the ink, the filter screen can filter out the large particles of impurities in the ink, so that the ink without large particles of impurities flows into the rotating drum through the filter holes, and the first motor is started to rotate the rotating drum. Through the high-speed rotation of the rotating drum, the liquid and fine particles in the ink are subjected to different centrifugal forces. Under the action of centrifugal force, the fine particles and liquid in the ink are separated, so that the fine particles are left on the inner wall of the rotating drum, and the oil flows into the outer drum through the guide holes on the rotating drum, and then flows into the bottom of the oil collecting tank through the oil leakage port, so that not only the waste ink is recycled, but also the large and small particles of impurities in the oil can be effectively removed through multi-stage filtration, which helps to ensure the quality of the recycled ink. The ink after removing impurities has better fluidity and stability, which can reduce failures and waste in the printing process and improve the quality of printed products.

[0013] 2. After the device of the utility model has been used for a period of time, a large number of fine particles are accumulated on the inner wall of the rotating drum. When cleaning, the second motor is started to rotate the screw rod, and the annular scraper is moved along the inner wall of the rotating drum with the cooperation of the guide rod, so that the impurities on the inner wall of the rotating drum can be scraped and cleaned, and the fine particle impurities after scraping and cleaning are discharged through the slag discharge pipe, so that the rotating drum can be cleaned regularly to avoid blockage and ensure the subsequent filtering effect. When cleaning the filter screen plate, the pneumatic cylinder is started to make the pneumatic rod drive the scraper to move, so that the impurities accumulated on the filter screen plate can be scraped and discharged through the slag discharge port, so that the filter screen plate can be cleaned regularly to avoid blockage and ensure the subsequent filtering effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0015] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the recovery device;

[0016] Figure 2 It is a schematic diagram of the cutaway three-dimensional structure of the recycling box;

[0017] Figure 3 It is a schematic diagram of the cutaway three-dimensional structure of the recycling box, the outer cylinder and the rotating cylinder;

[0018] Figure 4 It is a schematic diagram of the three-dimensional structure of the bottom of the outer cylinder;

[0019] Figure 5 It is a schematic diagram of the three-dimensional structure of the outer cylinder in cross section;

[0020] Figure 6 It is a schematic diagram of the three-dimensional structure of the outer cylinder and the rotating cylinder in cross-section.

[0021] In the figure: 1. recovery box; 2. filter screen plate; 3. fixing plate; 4. guide bucket; 5. fixing block; 6. outer cylinder; 7. fixing plate; 8. rotating ring; 9. rotating cylinder; 10. limiting plate; 11. support rod; 12. first motor; 13. oil leakage port; 14. L-shaped plate; 15. square block; 16. second motor; 17. screw rod; 18. guide rod; 19. annular scraper; 20. slag discharge pipe; 21. oil collecting tank; 22. third motor; 23. spiral conveying blade; 24. supporting frame; 25. pneumatic cylinder; 26. scraper; 27. slag discharge port; 28. limiting slide rail; 29. ​​sealing cover plate; 30. support seat; 31. pump body; 32. oil extraction pipeline; 33. oil outlet pipe; 34. oil discharge pipe. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figure 1-6As shown, a waste printing ink recycling and processing device comprises a recycling box 1, a filter screen plate 2 is arranged in the recycling box 1, a fixing plate 3 is fixedly connected to the inner walls of the four sides of the recycling box 1, a through opening is opened on the fixing plate 3, a guide hopper 4 is fixedly connected to the port of the through opening, the bottom port of the guide hopper 4 is fixedly connected to the outer cylinder 6, a fixing block 5 is installed on the inner walls of the four sides of the recycling box 1, the four fixing blocks 5 are fixedly connected to the outer cylinder 6, a rotating cylinder 9 is rotatably installed in the outer cylinder 6, a limiting plate 10 is set on the bottom end of the circumferential surface of the rotating cylinder 9, a fixing plate 7 is fixedly connected to the inner wall of the top end of the outer cylinder 6, and a fixing plate 7 is fixedly connected to the inner wall of the top end of the outer cylinder 6. A rotating ring 8 is rotatably installed in the disk 7, and the rotating ring 8 is sleeved on the outer circumferential surface of the rotating cylinder 9. Four support rods 11 are fixedly connected to the bottom end of the outer cylinder 6. The four support rods 11 are matched with a first motor 12. The output end of the first motor 12 is connected to a rotating column. The top of the rotating column is fixedly connected to the bottom side of the rotating cylinder 9. A plurality of oil leakage ports 13 are opened at the bottom end of the outer cylinder 6. A support seat 30 is installed at the top of the recovery box 1. A pump body 31 is installed on the support seat 30. The input hole of the pump body 31 is connected to an oil extraction pipeline 32, and the output hole of the pump body 31 is connected to an oil outlet pipe 33. 3; When the ink is to be recycled, the nozzle of the oil extraction pipe 32 is placed in the waste ink, the pump body 31 is started, the waste oil in the waste ink is extracted through the oil extraction pipe 32, and the waste ink is transported to the recovery box 1 through the oil outlet pipe 33. The large particles of impurities in the ink can be filtered out through the filter screen 2, and the ink without large particles of impurities flows into the rotating cylinder 9 through the filter hole. The first motor 12 is started to rotate the rotating cylinder 9. Through the high-speed rotation of the rotating cylinder 9, the liquid and fine particles in the ink are subjected to different ionization. Under the action of centrifugal force, the fine particles and liquid in the ink are separated, and the fine particles are left on the inner wall of the rotating cylinder 9. The oil flows into the outer cylinder 6 through the guide holes on the rotating cylinder 9, and then flows into the bottom of the oil collecting tank 21 through the oil leakage port 13, thereby not only realizing the recovery of waste ink, but also through multi-stage filtration, it can effectively remove large and small particle impurities in the oil, which helps to ensure the quality of the recycled ink. The ink after removing impurities has better fluidity and stability, which can reduce failures and waste in the printing process and improve the quality of printed products.

[0024] Four L-shaped plates 14 are fixedly connected to the rotating ring 8, and four square blocks 15 are fixedly connected to the inner wall of the bottom end of the rotating cylinder 9. Each square block 15 is correspondingly arranged directly below the L-shaped plate 14. A second motor 16 is installed on the two L-shaped plates 14. The output end of the second motor 16 is connected to a screw rod 17, and the bottom end of the screw rod 17 is rotatably installed on the square block 15. The two screw rods 17 are matched with an annular scraper 19, and the annular scraper 19 contacts the outer wall of the rotating cylinder 9. A guide rod 18 is fixedly connected between the other two L-shaped plates 14 and the corresponding square blocks 15, and the guide rod 18 penetrates the annular scraper 1 9 is set, the bottom end of the rotating drum 9 is connected with a slag discharge pipe 20, and the slag discharge pipe 20 is equipped with a one-way valve; after the device has been used for a period of time, a large number of fine particles are accumulated on the inner wall of the rotating drum 9. When cleaning, the second motor 16 is started to rotate the screw rod 17, and with the cooperation of the guide rod 18, the annular scraper 19 is moved along the inner wall of the rotating drum 9, so that the impurities on the inner wall of the rotating drum 9 can be scraped and cleaned, and the fine particle impurities after scraping and cleaning are discharged through the slag discharge pipe 20, so that the rotating drum 9 can be cleaned regularly to avoid blockage and ensure the subsequent filtering effect.

[0025] See also Figure 3 As shown, an oil collecting tank 21 is fixedly connected to the bottom end of the recovery box 1, a third motor 22 is installed at the bottom end of one side of the recovery box 1, an output end of the third motor 22 is connected to a rotating rod, a spiral conveying blade 23 is fixed to the outer surface of the rotating rod, and the spiral conveying blade 23 is arranged in the oil collecting tank 21, and an oil drain pipe 34 is connected to the bottom end of one side of the recovery box 1 away from the third motor 22; when the device is used, the oil after multi-stage filtration will fall into the oil collecting tank 21, and the third motor 22 is started to rotate the spiral conveying blade 23. Through the rotation of the spiral conveying blade 23, the oil can be stirred to increase its fluidity, and the oil can be transported so that the oil is discharged through the oil drain pipe 34, thereby realizing the recycling of resources.

[0026] See also Figure 2 As shown, a support frame 24 is fixedly connected to the side wall of the recovery box 1, and a pneumatic cylinder 25 is installed on the support frame 24. The active end of the pneumatic cylinder 25 is equipped with a pneumatic rod, and a scraper 26 is fixedly connected to the end of the pneumatic rod, and the scraper 26 is in contact with the outer surface of the filter screen plate 2. A slag discharge port 27 is opened on the side wall of the recovery box 1, and both sides of the port of the slag discharge port 27 are fixedly connected to limiting slide rails 28, and two limiting slide rails 28 are slidably installed with sealing cover plates 29; after the device has been used for a period of time, more impurities will accumulate on the filter screen plate 2. When cleaning, the pneumatic cylinder 25 is started, so that the pneumatic rod drives the scraper 26 to move, so that the impurities accumulated on the filter screen plate 2 can be scraped off and discharged through the slag discharge port 27, so that the filter screen plate 2 can be cleaned regularly to avoid blockage and ensure the subsequent filtering effect.

[0027] Working principle: the existing waste printing ink recovery device, when recycling ink, only uses a single filter plate for filtering, lacks a multi-stage filtering system, and can only filter out large particles of impurities in the ink, but cannot remove tiny particles in the ink. The presence of tiny particles of impurities will have a negative impact on the performance of the ink, such as reducing the fluidity of the ink, increasing the viscosity or causing uneven color, etc., which will affect the quality of subsequent printed products; therefore, in view of the above-mentioned problems, a waste printing ink recovery and processing device is proposed; when recycling ink, the nozzle of the oil extraction pipeline 32 is placed in the waste ink, the pump body 31 is started, the waste oil at the waste ink is extracted through the oil extraction pipeline 32, and the waste ink is transported to the recovery box 1 through the oil outlet pipe 33, and the large particles of impurities in the ink can be filtered out through the filter screen 2, so that the ink without large particles of impurities flows into the rotating cylinder 9 through the filter holes, and the first motor 12 is started to rotate the rotating cylinder 9. 9 rotates at a high speed, and the liquid and fine particles in the ink are subjected to different centrifugal forces. Under the action of the centrifugal force, the fine particles in the ink are separated from the liquid, and the fine particles are left on the inner wall of the rotating cylinder 9. The oil flows into the outer cylinder 6 through the guide holes on the rotating cylinder 9, and then flows into the bottom of the oil collecting tank 21 through the oil leakage port 13, thereby not only realizing the recovery of the waste ink, but also through multi-stage filtration, it can effectively remove large and small particle impurities in the oil, which helps to ensure the quality of the recycled ink. The ink after impurities are removed has better fluidity and stability, which can reduce failures and waste in the printing process and improve the quality of printed products; the oil after multi-stage filtration will fall into the oil collecting tank 21, and the third motor 22 is started to rotate the spiral conveying blade 23. Through the rotation of the spiral conveying blade 23, the oil can be stirred to increase its fluidity, and the oil can be transported to be discharged through the oil discharge pipe 34, realizing the recycling of resources;

[0028] After the device has been used for a period of time, a large number of fine particles will accumulate on the inner wall of the rotating cylinder 9. When cleaning, the second motor 16 is started to rotate the screw 17, and the annular scraper 19 is moved along the inner wall of the rotating cylinder 9 with the cooperation of the guide rod 18, so that the impurities on the inner wall of the rotating cylinder 9 can be scraped and cleaned, and the fine particle impurities after scraping and cleaning are discharged through the slag discharge pipe 20, so that the rotating cylinder 9 can be cleaned regularly to avoid blockage and ensure the subsequent filtering effect; after the device has been used for a period of time, a large number of impurities will accumulate on the filter screen plate 2. When cleaning, the pneumatic cylinder 25 is started to drive the pneumatic rod to move the scraper 26, so that the impurities accumulated on the filter screen plate 2 can be scraped and discharged through the slag discharge port 27, so that the filter screen plate 2 can be cleaned regularly to avoid blockage and ensure the subsequent filtering effect.

[0029] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0030] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. A waste printing ink recovery and processing device, characterized in that: The invention comprises a recycling box (1), wherein a filter screen plate (2) is arranged in the recycling box (1), a fixing plate (3) is fixedly connected to the inner walls of the four sides of the recycling box (1), a through opening is opened on the fixing plate (3), a guide hopper (4) is fixedly connected to the end of the through opening, a bottom end of the guide hopper (4) is fixedly connected to an outer cylinder (6), fixing blocks (5) are installed on the inner walls of the four sides of the recycling box (1), the four fixing blocks (5) are fixedly connected to the outer cylinder (6), a rotating cylinder (9) is rotatably installed in the outer cylinder (6), a limiting plate (10) is sleeved on the bottom end of the circumferential surface of the rotating cylinder (9), a fixing plate (7) is fixedly connected to the inner wall of the top end of the outer cylinder (6), a rotating ring (8) is rotatably installed in the fixing plate (7), ), and the rotating ring (8) is sleeved on the outer circumferential surface of the rotating cylinder (9), the bottom end of the outer cylinder (6) is fixedly connected to four support rods (11), and the four support rods (11) are matched with a first motor (12), the output end of the first motor (12) is connected to a rotating column, the top end of the rotating column is fixedly connected to the bottom side of the rotating cylinder (9), and the bottom end of the outer cylinder (6) is provided with a plurality of oil leakage ports (13), four L-shaped plates (14) are fixedly connected to the rotating ring (8), and four square blocks (15) are fixedly connected to the inner wall of the bottom end of the rotating cylinder (9), each square block (15) is correspondingly arranged directly below the L-shaped plate (14), and a second motor (16) is installed on the two L-shaped plates (14).

2. A waste printing ink recovery and processing device according to claim 1, characterized in that: The output end of the second motor (16) is connected to a screw rod (17), and the bottom end of the screw rod (17) is rotatably mounted on the square block (15). The two screw rods (17) are matched with an annular scraper (19), and the annular scraper (19) is in contact with the outer wall of the rotating cylinder (9).

3. The waste printing ink recovery and processing device according to claim 1 is characterized in that: A guide rod (18) is fixedly connected between the other two L-shaped plates (14) and the corresponding square blocks (15), and the guide rod (18) passes through the annular scraper (19). The bottom end of the rotating cylinder (9) is connected to a slag discharge pipe (20), and a one-way valve is installed on the slag discharge pipe (20).

4. The waste printing ink recovery and processing device according to claim 1 is characterized in that: The bottom end of the recovery box (1) is fixedly connected to an oil collecting tank (21), a third motor (22) is installed at the bottom end of one side of the recovery box (1), an output end of the third motor (22) is connected to a rotating rod, a spiral conveying blade (23) is fixed on the outer surface of the rotating rod, and the spiral conveying blade (23) is arranged in the oil collecting tank (21), and an oil drain pipe (34) is connected to the bottom end of one side of the recovery box (1) away from the third motor (22).

5. The waste printing ink recovery and processing device according to claim 1 is characterized in that: A support frame (24) is fixedly connected to the side wall of the recovery box (1), a pneumatic cylinder (25) is installed on the support frame (24), an action end of the pneumatic cylinder (25) is equipped with a pneumatic rod, and a scraper (26) is fixedly connected to the end of the pneumatic rod, and the scraper (26) is in contact with the outer surface of the filter screen plate (2).

6. The waste printing ink recovery and processing device according to claim 1, characterized in that: The side wall of the recovery box (1) is provided with a slag discharge port (27), both sides of the port of the slag discharge port (27) are fixedly connected with limit slide rails (28), and the two limit slide rails (28) are slidably mounted with sealing cover plates (29).

7. The waste printing ink recovery and processing device according to claim 1 is characterized in that: A support seat (30) is installed at the top of the recovery box (1), a pump body (31) is installed on the support seat (30), an input hole of the pump body (31) is connected to an oil extraction pipeline (32), and an output hole of the pump body (31) is connected to an oil outlet pipe (33).

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