Printing ink three-roller grinding machine

Abstract

The invention discloses a printing ink three-roller grinding machine, relates to the technical field of grinding machines, and solves the technical problems of time and labor waste and low cleaning efficiency when grinding rollers are cleaned. The printing ink three-roller grinding machine comprises a machine body, three grinding rollers are arranged on the machine body, a cleaning hopper is fixed in the machine body, a supporting plate is fixed in the cleaning hopper, and a supporting column is fixed to the top of the supporting plate; a supporting frame is arranged on the supporting column in a sliding mode, two cleaning brush rollers are arranged at the top of the supporting frame, a plurality of water outlets are formed in each cleaning brush roller, first supporting bases are arranged at the two ends of each cleaning brush roller, the four first supporting bases are fixed to the top of the supporting frame, a filtering plate is fixed in the cleaning hopper, and two threaded cylinders are rotationally connected to the filtering plate; and a plurality of flexible scrapers are fixed on the two threaded cylinders. The cleaning brush roller makes contact with the bottom of the grinding roller, so that residual ink on the roller surface is effectively removed, water is injected into the hollow cleaning brush roller in a matched mode, washing is carried out while mechanical cleaning is carried out, and the cleaning effect is remarkably improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of grinding machine, and particularly relates to an ink three-roller grinding machine. BACKGROUND

[0002] The three-roller grinding machine is short for three-roller machine, and the three-roller grinding machine can be divided into experimental three-roller grinding machine and production three-roller grinding machine. The three-roller grinding machine is suitable for manufacturing of paint, ink, pigment and plastic slurry, and the working principle of the three-roller grinding machine is to achieve grinding effect through mutual extrusion of surfaces of three horizontal rollers and friction of different speeds.

[0003] After use of the three-roller grinding machine, the residual ink on the grinding roller needs to be cleaned in time. If the residual ink is not cleaned in time, the residual ink is prone to dry and solidify on the grinding roller, thereby affecting the grinding treatment next time and affecting the quality of the next grinding.

[0004] The general method for cleaning the existing three-roller grinding machine is that a worker wears gloves and goggles, holds a scraper against one side of the grinding roller, controls the grinding roller to be idling or manually controls the grinding roller to rotate, thereby scraping off the residual material on the grinding roller, wipes the surface of the grinding roller with a soft cloth or sponge in cooperation with a cleaning agent, then scrapes off the residual material that is not easy to scrape off with the scraper again, and then wipes the surface of the grinding roller clean with clean water again.

[0005] In this process, since the three grinding rollers need to be cleaned, and the cleaning is performed manually, the cleaning efficiency is low, time-consuming and laborious, and during the cleaning process, waste water and residual material may fall on the machine body below the grinding roller when the scraper is cleaned with the soft cloth, so the part of the machine body needs to be cleaned again by the worker, so that the overall cleaning efficiency is low.

[0006] On the basis, the present application provides an ink three-roller grinding machine to solve the above problems. SUMMARY

[0007] In view of the above situation, in order to overcome the defects of the prior art, the present application provides an ink three-roller grinding machine, which is novel in structure, ingenious in design, and effectively solves the technical problems of time-consuming and laborious cleaning of the grinding roller after ink grinding, and low cleaning efficiency.

[0008] The utility model provides an ink three -roll mill, including the body, be provided with three grinding rollers on the body, be fixedly connected with the cleaning bucket in the body, the cleaning bucket is located below three grinding rollers, be fixedly connected with the support plate in the cleaning bucket, the top of support plate is fixedly connected with the support column, the support column is connected with the support frame of being able to lift and fall up and down, the top of support frame is provided with two rotatable cleaning brush rollers, two cleaning brush rollers are hollow inside, and surface is provided with a plurality of water outlets, the shaft head of both ends of two cleaning brush rollers is provided with first support seat, four first support seats are fixedly connected on the top of support frame, and two cleaning brush rollers are located below every pair of adjacent grinding roller respectively.

[0009] Preferably, the top of the support frame is fixedly connected with a double-shaft motor, one output shaft of the double-shaft motor is fixedly connected with a first pulley, the shaft head of one end of each of the two cleaning brush rollers is fixedly connected with a second pulley, the first pulley and the two second pulleys are connected by a belt drive, the other output shaft of the double-shaft motor is fixedly connected with a rotating shaft, the top of the support frame is fixedly connected with two second support seats, the rotating shaft is rotatably connected to the two second support seats, and the rotating shaft is fixedly connected with a gear.

[0010] Preferably, the top of the support column is provided with a working groove, the gear on the rotating shaft is located in the working groove, one side of the working groove is provided with a receiving groove, one side of the receiving groove is fixedly connected with a rack, the gear is engaged with the rack, a limiting groove is formed in the support frame, a limiting block is fixedly connected to the top of the support plate, and the limiting block is slidably connected in the limiting groove.

[0011] Preferably, an adjusting groove is formed in the rack, a press plate that can be lifted and lowered is arranged in the adjusting groove, the press plate is matched with the teeth on the rack, sliding blocks are fixedly connected to the two sides of the press plate, sliding grooves are formed in the two sides of the adjusting groove, the two sliding blocks are slidably connected in the two sliding grooves, springs are arranged between the two sliding blocks and the two sliding grooves, telescopic rods are fixedly connected to the two sides of the two sliding grooves, the output ends of the two telescopic rods are fixedly connected to the two sides of the two sliding blocks, and the two telescopic rods are located in the two springs.

[0012] Preferably, one side of each of the two first support seats is fixedly connected with a fixing frame, a rotary joint is fixedly connected to each of the two fixing frames, the outlet end of each of the two rotary joints is communicated with the shaft head of one end of each of the two cleaning brush rollers, a communication pipe is fixedly connected to the inlet end of each of the two rotary joints, a water pump is fixedly connected to the bottom of the support frame, a water delivery pipe is fixedly connected to the output end of the water pump, the other end of the water delivery pipe is communicated with the two communication pipes, a water inlet pipe is fixedly connected to the input end of the water pump, and a limiting frame is fixedly connected to the other end of the water inlet pipe.

[0013] Preferably, a filter plate is fixedly connected in the cleaning bucket, the limiting frame is located below the filter plate, the filter plate is located below the supporting frame, two threaded barrels are rotatably connected to the filter plate, a plurality of flexible scrapers are fixedly connected to the threaded barrels, the flexible scrapers are located above the filter plate, supporting blocks are fixedly connected to the two sides of the supporting frame, supporting rods are fixedly connected to the bottoms of the supporting blocks, threaded rods are fixedly connected to the bottoms of the supporting rods, and the threaded rods are threadedly connected in the threaded barrels.

[0014] Preferably, discharge ports are formed in the two sides of the cleaning bucket, the bottoms of the discharge ports are flush with the top of the filter plate, placing frames are fixedly connected to the two sides of the cleaning bucket, storage boxes are placed in the placing frames, and the feed ports of the storage boxes are matched with the discharge ports.

[0015] Preferably, two adjusting rods are arranged on the top of the machine body, fixing bolts are arranged on the adjusting rods, the adjusting rods are installed above the machine body through the fixing bolts, baffles are fixedly connected to the opposite ends of the adjusting rods, the baffles are matched and located above the grinding rollers, a discharge plate is arranged on the machine body, and the discharge plate is located on the discharge side of the grinding rollers.

[0016] The present application has the following technical effects.

[0017] 1. The cleaning bucket, the first supporting seat and the cleaning brush roller are used to make the cleaning brush roller contact the bottom of the grinding roller, so that the residual ink on the roller surface is effectively removed, the water pump, the water inlet pipe, the water delivery pipe and the rotary joint are used to cooperate with water injection into the hollow cleaning brush roller, so that water washing is realized while mechanical cleaning is performed, the rotation shaft, the gear and the rack are used to drive the cleaning brush roller to ascend and descend, so that the cleaning brush roller is lowered into the cleaning bucket when the grinding roller is used and is extended to contact the lower side of the grinding roller when the grinding roller is used.

[0018] 2. The adjusting groove, the pressing plate, the sliding block and the spring are used to make the cleaning brush roller have a macro distance ascending and descending function, so that the surface state of the grinding roller is self-adapted and the thoroughness of contact and cleaning is enhanced, the filter plate is arranged to realize real-time filtration of the ink-containing sewage generated in the cleaning process, separation of solid particles and waste water, and recycling of the cleaning water, so that resources are saved and waste water discharge is reduced.

[0019] 3. The threaded rods, the threaded barrels and the flexible scrapers are used to scrape off the sundries filtered out from the top of the filter plate, avoid blockage of the filter holes, ensure that the filter plate continuously maintains good filtering capacity, and the discharge ports, the placing frames and the storage boxes are used to collect the cleaned sundries, so that the sundries are conveniently collected and regularly cleaned. BRIEF DESCRIPTION OF DRAWINGS

[0020] The accompanying drawings are included to provide a further understanding of the present application, and are incorporated in and constitute a part of this specification, illustrate embodiments of the present application and are used to explain the present application, but are not intended to limit the present application. In the drawings:

[0021] Figure 1 is a schematic diagram of the stereoscopic structure in the present application;

[0022] Figure 2 is a schematic diagram of the assembly structure of the grinding roller and the cleaning bucket in the present application;

[0023] Figure 3 is a schematic diagram of the assembly structure of the cleaning bucket and the filter plate in the present application;

[0024] Figure 4 is a schematic diagram of the assembly structure of the support frame, the first support seat and the cleaning brush roller in the present application;

[0025] Figure 5 is a schematic diagram of the assembly structure of the support block, the threaded rod and the threaded cylinder in the present application;

[0026] Figure 6 is a schematic diagram of the assembly structure of the second support seat, the rotating shaft and the gear in the present application;

[0027] Figure 7 is a schematic diagram of the assembly structure of the threaded cylinder and the flexible scraper in the present application;

[0028] Figure 8 is a schematic diagram of the assembly structure of the support column and the rack in the present application;

[0029] Figure 9 is a schematic diagram of the assembly structure of the rack, the adjusting groove and the pressing plate in the present application;

[0030] Figure 10 is a schematic diagram of the assembly structure of the pressing plate, the sliding block and the spring in the present application.

[0031] The drawings show: 1-machine body; 2-grinding roller; 3-adjusting rod; 4-baffle; 5-fixing bolt; 6-discharge plate; 7-washing bucket; 8-filter plate; 9-threaded cylinder; 10-flexible scraper; 11-discharge port; 12-placing rack; 13-storage box; 14-supporting plate; 15-supporting column; 16-working groove; 17-storage groove; 18-rack; 19-adjusting groove; 20-pressing plate; 21-sliding block; 22-slotted; 23-spring; 24-telescopic rod; 25-supporting rack; 26-double-shaft motor; 27-first pulley; 28-first supporting seat; 29-cleaning brush roller; 30-second pulley; 31-belt; 32-fixing frame; 33-rotary joint; 34-communication pipe; 35-water pump; 36-water delivery pipe; 37-water outlet; 38-rotating shaft; 39-second supporting seat; 40-gear; 41-limiting groove; 42-limiting block; 43-supporting block; 44-supporting rod; 45-threaded rod; 46-water inlet pipe; 47-limiting frame. DETAILED DESCRIPTION

[0032] The foregoing and other technical contents, features and effects of the present application will be described in detail below with reference to the accompanying drawings. Figures 1 to 10 The detailed description of the embodiments will be clear. The contents mentioned in the following embodiments are all with reference to the drawings.

[0033] The exemplary embodiments of the present application will be described below with reference to the accompanying drawings.

[0034] The present application is an ink three-roll grinding machine, comprising a machine body 1, three rotatable grinding rollers 2 are arranged on the machine body 1, the three grinding rollers 2 are arranged in parallel, a washing bucket 7 is fixedly connected in the machine body 1, a water inlet valve and a drain valve are built-in the washing bucket 7, the washing bucket 7 is located below the three grinding rollers 2, a supporting plate 14 is fixedly connected in the washing bucket 7, a supporting column 15 is vertically fixedly connected at the top of the supporting plate 14, a supporting rack 25 capable of lifting is slidingly connected on the supporting column 15, the supporting rack 25 is sleeved on the supporting column 15, two rotatable cleaning brush rollers 29 are arranged at the top of the supporting rack 25, the interiors of the two cleaning brush rollers 29 are hollow, and a plurality of water outlets 37 are formed on the surfaces of the two cleaning brush rollers 29, first supporting seats 28 are arranged on the shaft heads of the two ends of the two cleaning brush rollers 29, the four first supporting seats 28 are fixedly connected at the top of the supporting rack 25, the two cleaning brush rollers 29 are respectively located directly below each pair of adjacent grinding rollers 2, so that the two cleaning brush rollers 29 can contact and clean the three grinding rollers 2.

[0035] In this embodiment, through the lifting movement of the support frame 25, the two cleaning brush rollers 29 at the top of the support frame 25 are lifted synchronously, so that the cleaning brush rollers 29 move below the gap between the three grinding rollers 2 and keep contact with the bottom surface of the grinding rollers 2. The cleaning brush rollers 29 rotate by means of the first support seat 28, thereby continuously scraping and scrubbing the ink residues on the surface of the three grinding rollers 2. At the same time, water is injected into the hollow structure of the cleaning brush rollers 29, and the water flows out from the uniformly distributed water outlets 37 on the surface of the cleaning brush rollers 29, thereby wetting the cleaning brush rollers 29, cooling the friction surface, and cooperating with the brushing action, which significantly improves the cleaning efficiency and cleanliness. The ink-containing sewage generated during the cleaning process falls into the cleaning bucket 7 below.

[0036] It should be noted that during cleaning, the two cleaning brush rollers 29 and the three grinding rollers 2 rotate, and preferably there is a relative speed difference between them.

[0037] It should be further noted that the water in the cleaning brush rollers 29 can be added with an appropriate amount of cleaning agent according to actual conditions.

[0038] As an embodiment, the top of the support frame 25 is fixedly connected with a double-shaft motor 26. The double-shaft motor 26 is connected with a power supply and a controller. A protective shell is arranged on the surface of the double-shaft motor 26, so that the double-shaft motor 26 is kept sealed. A first pulley 27 is fixedly connected to one output shaft of the double-shaft motor 26. The first pulley 27 is a double-groove pulley. Second pulleys 30 are fixedly connected to the shaft heads at one end of the two cleaning brush rollers 29. The first pulley 27 is drivingly connected with the two second pulleys 30 through a belt 31. A rotating shaft 38 is fixedly connected to the other output shaft of the double-shaft motor 26. Two second support seats 39 are fixedly connected to the top of the support frame 25. The rotating shaft 38 is rotatably connected to the two second support seats 39. A gear 40 is fixedly connected to the rotating shaft 38. The gear 40 is located between the two second support seats 39. A working groove 16 is formed in the top of the support column 15. The gear 40 on the rotating shaft 38 is located in the working groove 16. A storage groove 17 is formed in one side of the working groove 16. A rack 18 is fixedly connected to one side of the storage groove 17. The gear 40 is engaged with the rack 18. A limiting groove 41 is formed in the support frame 25. A limiting block 42 is fixedly connected to the top of the support plate 14. The limiting block 42 is slidingly connected in the limiting groove 41. A distance sensor (not shown in the figure due to shielding) is arranged on the support frame 25. The distance sensor is used to send a trigger signal when the cleaning brush rollers 29 move to a predetermined highest or lowest position, so as to control the double-shaft motor 26 to stop or reverse, thereby realizing automatic control at the end of the stroke.

[0039] It should be noted that the support column 15, the gear 40, the second support seat 39, the rotating shaft 38, the double-shaft motor 26, etc. are covered with a protective shell (the protective shell is hidden in the figure in order to show the internal structure).

[0040] In this embodiment, after the double-shaft motor 26 is started, one end of the output shaft drives the first pulley 27 to rotate, and through two belts 31, the rotation is transmitted to two second pulleys 30, thereby driving the two cleaning brush rollers 29 to rotate synchronously on the first support seat 28, realizing continuous rotation cleaning of the surface of the grinding roller 2. At the same time, the other end of the output shaft of the double-shaft motor 26 drives the rotating shaft 38 to rotate in the second support seat 39, and the gear 40 fixed to the rotating shaft 38 rotates, and through the meshing transmission of the gear 40 and the rack 18 installed in the working groove 16 of the support column 15, the gear 40 moves linearly upwards along the rack 18 in the rotating process, thereby driving the support frame 25 to stably ascend along the support column 15, and finally making the cleaning brush roller 29 contact the lower surface of the grinding roller 2, completing the cleaning positioning. After the cleaning operation is completed, the double-shaft motor 26 is reversely rotated to drive the rotating shaft 38 to rotate reversely, thereby driving the gear 40 to move downwards along the rack 18, so as to guide the support frame 25 to descend along the support column 15, and the cleaning brush roller 29 is retracted into the cleaning bucket 7, so that it is completely avoided from the grinding area and does not affect the subsequent normal grinding operation.

[0041] It should be noted that, due to the limitation of the upper grinding roller 2 and the gear 40 about to be disengaged from the rack 18, under the action of gravity, the gear 40 returns to the position of engaging with the rack 18, so that the cleaning brush roller 29 is always in contact with the grinding roller 2 during cleaning.

[0042] As an embodiment, the rack 18 is provided with an adjusting groove 19, the adjusting groove 19 is rectangular in shape, a press plate 20 capable of ascending and descending is arranged in the adjusting groove 19, the part of the press plate 20 protruding from the adjusting groove 19 is the same in shape as the tooth of the rack 18, the press plate 20 is matched with the tooth of the rack 18, slide blocks 21 are fixedly connected to the two sides of the press plate 20, the two slide blocks 21 are symmetrical, slide grooves 22 are formed on the two sides of the adjusting groove 19, the two slide grooves 22 are inclined, and the press plate 20 is driven into the adjusting groove 19 in the descending process, the two slide blocks 21 are slidably connected in the two slide grooves 22, springs 23 are arranged between the bottoms of the two slide blocks 21 and the two slide grooves 22, telescopic rods 24 are fixedly connected to the bottoms of the two slide grooves 22, output ends of the two telescopic rods 24 are fixedly connected to the bottoms of the two slide blocks 21, and the two telescopic rods 24 are located in the two springs 23 respectively.

[0043] In this embodiment, when the gear 40 rises to the highest position along the rack 18, the teeth of the gear 40 continue to rotate after engaging with the topmost teeth of the rack 18, which pushes the subsequent teeth of the gear 40 to contact and press against the pressing plate 20. After the gear 40 continues to rise and reaches the top, the teeth of the gear 40 disengage from the teeth of the rack 18, and the gear 40 only contacts the pressing plate 20. When the gear 40 exerts pressure on the pressing plate 20, the gravity of the gear 40 itself and other components such as the support frame 25 act together on the pressing plate 20, forcing the pressing plate 20 to press down. The sliding blocks 21 on both sides of the pressing plate 20 slide downward in the sliding grooves 22 of the adjusting groove 19, causing the entire pressing plate 20 to tilt and move towards the inside of the adjusting groove 19. This action further compresses the spring 23, causing it to elastically deform and accumulate rebound force. After the spring 23 is compressed, it generates a reverse force that pushes the pressing plate 20 upwards, effectively buffering the downward movement of the gear 40. During the process of the pressing plate 20 gradually moving down and sinking into the adjusting groove 19, the teeth of the pressing plate 20 gradually disengage from the teeth of the gear 40. When they completely disengage, the next tooth of the gear 40 re-engages with the topmost tooth of the rack 18, providing support for the gear 40. At this time, the pressing plate 20 is only affected by the rebound force of the spring 23, which pushes the sliding blocks 21 on both sides to slide upwards along the sliding grooves 22, driving the pressing plate 20 to return to its original position. As the gear 40 continues to rotate, its teeth will again engage with the topmost teeth of the rack 18 and rise, repeating the above process. In this way, the gear 40 can drive the cleaning brush roller 29 to move up and down in a short distance, enhancing the dynamic contact effect between the cleaning brush roller 29 and the surface of the grinding roller 2, thereby improving the cleaning efficiency and quality of the grinding roller 2.

[0044] As an embodiment, one side of each of the two first support seats 28 is fixedly connected with a fixed frame 32, and the two fixed frames 32 are fixedly connected with rotary joints 33. The outlet ends of the two rotary joints 33 are respectively in sealed communication with the shaft heads of one end of the two cleaning brush rollers 29, and the rotary joints 33 are rotationally connected with the cleaning brush rollers 29. The inlet ends of the two rotary joints 33 are fixedly connected with communication pipes 34. The bottom of the support frame 25 is fixedly connected with a water pump 35, which is connected with a power supply and a controller. The output end of the water pump 35 is fixedly connected with a water delivery pipe 36, and the other end of the water delivery pipe 36 is in communication with the two communication pipes 34. The input end of the water pump 35 is fixedly connected with a water inlet pipe 46, and the other end of the water inlet pipe 46 is fixedly connected with a limiting frame 47, which is in the shape of a cross.

[0045] In this embodiment, while the cleaning brush roller 29 rotates and contacts the surface of the grinding roller 2 for cleaning, the water pump 35 is started to work. The water pump 35 sucks filtered cleaning water from the bottom of the cleaning bucket 7 through the water inlet pipe 46, and cleaning agents can be added according to actual conditions. The water is delivered to the two communication pipes 34 through the water delivery pipe 36, and then enters the internal cavities of the two cleaning brush rollers 29. Finally, the water is uniformly distributed from the water outlets 37 on the surface of the cleaning brush roller 29, forming a continuous water flow or water mist. The water flow or water mist cooperates with the mechanical cleaning action of the cleaning brush roller 29 to achieve the dual cleaning effect of "water washing and brushing", significantly improving the cleaning efficiency of the residual ink on the surface of the grinding roller 2. The limiting frame 47 is fixed at the inlet of the water inlet pipe 46 to ensure that the water suction port is always in the appropriate position below the liquid level of the cleaning bucket 7, preventing air from being sucked in, and ensuring that the water pump 35 can stably and continuously supply water.

[0046] As an embodiment, the cleaning bucket 7 is fixedly connected with a filter plate 8. The filter plate 8 is horizontally arranged in the cleaning bucket 7. The limiting frame 47 is located below the filter plate 8. The filter plate 8 is located below the support frame 25. Two threaded barrels 9 are rotatably connected to the filter plate 8. A plurality of flexible scrapers 10 are fixedly connected to the two threaded barrels 9. The plurality of flexible scrapers 10 are located above the filter plate 8. The bottom of the flexible scraper 10 is in contact with the upper surface of the filter plate 8. The support frame 25 is fixedly connected with a support block 43 on both sides. The two support blocks 43 are symmetrical. The bottom of the two support blocks 43 is fixedly connected with a support rod 44. The bottom end of the two support rods 44 is fixedly connected with a threaded rod 45. The two threaded rods 45 are threadedly connected in the two threaded barrels 9. The threaded barrel 9 and the threaded rod 45 are large-pitch threaded connections (similar to inclined sliding block and sliding groove connections). The cleaning bucket 7 is provided with a discharge port 11 on both sides. The discharge port 11 is rectangular. The bottom is inclined downward from inside to outside. The bottom of the two discharge ports 11 is at the same horizontal plane as the top of the filter plate 8. The cleaning bucket 7 is fixedly connected with a placing frame 12 on both sides. The two placing frames 12 are placed with a storage box 13. The inlet of the two storage boxes 13 is matched with the two discharge ports 11.

[0047] In this embodiment, the sewage falling into the cleaning bucket 7 is collected on the surface of the filter plate 8, the filter plate 8 performs preliminary solid-liquid separation on the sewage, filters out particulate impurities, so that the water can be recycled, realizing sustainable use of cleaning water, and the filter plate 8 can also be replaced according to the actual situation to change the filtering level, in order to further ensure the long-term effective work of the filter plate 8, during the lifting or lowering of the support frame 25, the support blocks 43 on both sides drive the two support rods 44 to move synchronously, and the threaded rods 45 at the bottom of the support rods 44 are lifted, and through the cooperation of the threaded rods 45 and the large pitch of the threaded cylinder 9, the vertical movement is converted into the rotary movement of the threaded cylinder 9 on the filter plate 8, when the threaded cylinder 9 rotates, the flexible scraper 10 installed on the outer periphery thereof is attached to the surface of the filter plate 8 to rotate and scrape, the flexible scraper 10 continuously pushes the accumulated ink residues and solid impurities on the filter plate 8 during rotation, preventing pore blockage, thereby maintaining the permeability and filtering efficiency of the filter plate 8, after cleaning is completed, the impurities on the filter plate 8 are manually swept into the storage box 13, and then the storage box 13 is pulled out from the placing rack 12, so that the operator can clean regularly and effectively maintain the cleanliness of the equipment.

[0048] As an embodiment, the top of the machine body 1 is provided with two adjusting rods 3, the two adjusting rods 3 are both provided with fixing bolts 5, and the two adjusting rods 3 are both installed above the machine body 1 through the fixing bolts 5. The opposite ends of the two adjusting rods 3 are both fixedly connected with baffles 4, the two baffles 4 are matched and located above the two grinding rollers 2. The machine body 1 is provided with a discharge plate 6, and the discharge plate 6 is located on the discharge side of the grinding roller 2.

[0049] In this embodiment, the distance between the two baffles 4 is adjusted through the fixing bolts 5 and the two adjusting rods 3. The ground ink is limited through the abutment of the baffles 4 and the grinding rollers 2. The ground ink of the grinding roller 2 is smoothly discharged through the discharge plate 6.

[0050] The working principle of the present application is as follows:

[0051] In use, the ink to be ground is placed between the two grinding rollers 2. The three grinding rollers 2 rotate at different speeds and distances to grind the ink. The distance between the two baffles 4 is adjusted through the adjusting rod 3 to limit the ink during grinding. Until the grinding is completed, the ink falls on the discharge plate 6 and is discharged.

[0052] After the ink is ground and completely discharged, the two output shafts of the double-shaft motor 26 are started to work synchronously: one output end drives the cleaning brush roller 29 to rotate on the support frame 25, and the other output shaft drives the support frame 25 to rise, so that the cleaning brush roller 29 contacts the two gaps between the three grinding rollers 2, thereby cleaning the ink remaining on the surface of the three grinding rollers 2. While the cleaning brush roller 29 rotates to clean the grinding rollers 2, the water pump 35 is started to pump water from the cleaning bucket 7 to the two communication pipes 34 through the water delivery pipe 36, and then inject the cleaning water into the cavity of the cleaning brush roller 29 through the two rotary joints 33, and finally discharge the cleaning water from the water outlet 37 on the cleaning brush roller 29, so that the cleaning brush roller 29 is wetted, improving the cleaning effect of the grinding rollers 2. After cleaning is completed, the double-shaft motor 26 is reversed to drive the cleaning brush roller 29 to descend and retract into the cleaning bucket 7 until it returns to the initial position, and the double-shaft motor 26 stops running.

[0053] The sewage generated during the cleaning of the grinding rollers 2 falls into the filter plate 8, and the filtered clean water is returned to the cleaning bucket 7 for recycling. During the rising or descending of the support frame 25, the threaded rod 45 is driven by the support rod 44 on one side to rise and fall synchronously, so that the threaded cylinder 9 rotates on the filter plate 8, and the flexible scraper 10 driven by the threaded cylinder 9 moves closely to the top of the filter plate 8 to push the filtered debris to the discharge port 11, and finally the debris is cleaned into the storage box 13 by manual operation, which is convenient for the staff to handle uniformly.

[0054] The present application has the following technical effects.

[0055] 1. The cleaning brush roller 29 contacts the bottom of the grinding roller 2 through the cleaning bucket 7, the first support seat 28 and the cleaning brush roller 29, thereby effectively removing the ink remaining on the surface of the roller. Water is injected into the hollow cleaning brush roller 29 through the water pump 35, the water inlet pipe 46, the water delivery pipe 36 and the rotary joint 33, so that water washing is realized at the same time of mechanical cleaning, which significantly improves the cleaning effect and cleaning efficiency. The cleaning brush roller 29 is driven to rise and fall by the rotating shaft 38, the gear 40 and the rack 18, so that it is retracted into the cleaning bucket 7 when the grinding roller 2 is used, and it is extended to contact the lower part of the grinding roller 2 when it is used.

[0056] 2. The cleaning brush roller 29 has a macro-lift function through the adjusting groove 19, the pressing plate 20, the sliding block 21 and the spring 23, which can adapt to the surface state of the grinding roller 2 and enhance the thoroughness of contact and cleaning. The filter plate 8 is arranged to filter the ink-containing sewage generated during the cleaning process in real time, separate solid particles from waste water, and realize the recycling of cleaning water, which not only saves resources, but also reduces waste water discharge.

[0057] 3. The application is through the threaded rod 45, threaded barrel 9 and flexible scraper 10, the top of the filter plate 8 filter out the debris scraping, avoid filter hole blockage, ensure that the filter plate 8 continues to maintain good filtering capacity, through the discharge port 11, the rack 12 and the storage box 13, the cleaning out of the debris for collection, convenient centralized processing and regular cleaning.

[0058] Finally, it should be noted that: the above examples are used to illustrate the technical solutions of the present application, rather than limit them; although the present application has been described in detail with reference to the foregoing examples, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing examples, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A three-roll mill for ink grinding, comprising a machine body (1), characterized in that, The machine body (1) is provided with three grinding rollers (2). A cleaning bucket (7) is fixedly connected inside the machine body (1). The cleaning bucket (7) is located below the three grinding rollers (2). A support plate (14) is fixedly connected inside the cleaning bucket (7). A support column (15) is fixedly connected to the top of the support plate (14). A support frame (25) that can be raised and lowered is slidably connected to the support column (15). Two rotatable cleaning brush rollers (29) are provided on the top of the support frame (25). The two cleaning brush rollers (29) are hollow inside and have multiple water outlets (37) on their surface. A first support seat (28) is provided on the shaft head at both ends of the two cleaning brush rollers (29). The four first support seats (28) are fixedly connected to the top of the support frame (25). The two cleaning brush rollers (29) are located directly below each pair of adjacent grinding rollers (2).

2. The ink three-roll mill according to claim 1, characterized in that, A dual-axis motor (26) is fixedly connected to the top of the support frame (25). A first pulley (27) is fixedly connected to one output shaft of the dual-axis motor (26). A second pulley (30) is fixedly connected to the shaft head of each of the two cleaning brush rollers (29). The first pulley (27) and the two second pulleys (30) are connected by a belt (31). A rotating shaft (38) is fixedly connected to the other output shaft of the dual-axis motor (26). Two second support seats (39) are fixedly connected to the top of the support frame (25). The rotating shaft (38) is rotatably connected to the two second support seats (39). A gear (40) is fixedly connected to the rotating shaft (38).

3. The ink three-roll mill according to claim 2, characterized in that, The top of the support column (15) is provided with a working groove (16), the gear (40) on the rotating shaft (38) is located in the working groove (16), a storage groove (17) is provided on one side of the working groove (16), a rack (18) is fixedly connected to one side of the storage groove (17), the gear (40) meshes with the rack (18), a limiting groove (41) is provided on the support frame (25), a limiting block (42) is fixedly connected to the top of the support plate (14), and the limiting block (42) is slidably connected in the limiting groove (41).

4. The ink three-roll mill according to claim 3, characterized in that, The rack (18) is provided with an adjustment groove (19), and a pressure plate (20) that can be raised and lowered is provided in the adjustment groove (19). The pressure plate (20) is engaged with the teeth on the rack (18). Slider (21) is fixedly connected to both sides of the pressure plate (20). Slide grooves (22) are provided on both sides of the adjustment groove (19). The two sliders (21) are slidably connected in the two slide grooves (22). Springs (23) are provided between the two sliders (21) and the two slide grooves (22). Telescopic rods (24) are fixedly connected to one side of the two slide grooves (22). The output ends of the two telescopic rods (24) are fixedly connected to one side of the two sliders (21). The two telescopic rods (24) are located in the two springs (23).

5. The ink three-roll mill according to claim 1, characterized in that, A fixed frame (32) is fixedly connected to one side of each of the two first support seats (28). A rotary joint (33) is fixedly connected to each of the two fixed frames (32). The outlet ends of the two rotary joints (33) are respectively connected to the shaft ends of one end of the two cleaning brush rollers (29). A connecting pipe (34) is fixedly connected to the inlet ends of the two rotary joints (33). A water pump (35) is fixedly connected to the bottom of the support frame (25). A water supply pipe (36) is fixedly connected to the output end of the water pump (35). The other end of the water supply pipe (36) is connected to the two connecting pipes (34). A water inlet pipe (46) is fixedly connected to the input end of the water pump (35). A limit frame (47) is fixedly connected to the other end of the water inlet pipe (46).

6. The ink three-roll mill according to claim 5, characterized in that, A filter plate (8) is fixedly connected inside the cleaning bucket (7). The limiting frame (47) is located below the filter plate (8). The filter plate (8) is located below the support frame (25). Two threaded cylinders (9) are rotatably connected to the filter plate (8). Multiple flexible scrapers (10) are fixedly connected to each of the two threaded cylinders (9). The multiple flexible scrapers (10) are located above the filter plate (8). Support blocks (43) are fixedly connected to both sides of the support frame (25). Support rods (44) are fixedly connected to the bottom of each of the two support blocks (43). Threaded rods (45) are fixedly connected to the bottom ends of each of the two support rods (44). The two threaded rods (45) are threadedly connected to the two threaded cylinders (9) respectively.

7. The ink three-roll mill according to claim 6, characterized in that, The washing bucket (7) has discharge ports (11) on both sides. The bottom of the two discharge ports (11) is level with the top of the filter plate (8). The washing bucket (7) has a fixed rack (12) on both sides. The two racks (12) each contain a storage box (13). The inlet of the two storage boxes (13) is matched with the two discharge ports (11).

8. The ink three-roll mill according to claim 1, characterized in that, The top of the machine body (1) is provided with two adjusting rods (3), and each of the two adjusting rods (3) is provided with a fixing bolt (5). The two adjusting rods (3) are installed above the machine body (1) by fixing bolts (5). The opposite ends of the two adjusting rods (3) are fixedly connected with baffles (4). The two baffles (4) cooperate and are located above the two grinding rollers (2). The machine body (1) is provided with a discharge plate (6), which is located on the discharge side of the grinding rollers (2).

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