Magnetic ink preparation device and preparation method

Abstract

The invention belongs to the technical field of printing ink processing, particularly relates to a magnetic printing ink preparation device and a preparation method, and aims to solve the problems that an existing reaction kettle needs to be transferred to a subsequent step for filtering and washing a material after a reaction, transfer is inconvenient, and the processing efficiency is low due to the fact that stirring needs to be performed by depending on other equipment before the reaction. According to the scheme, the device comprises a reaction kettle, three charging barrels are fixedly arranged at the top of the reaction kettle in a penetrating mode, stirring shafts are rotatably arranged in the charging barrels in a penetrating mode, a plurality of stirring spoons used for stirring materials are fixedly arranged on the outer walls of the stirring shafts, and discharging mechanisms are arranged at the bottoms of the charging barrels; the whole magnetic ink preparation device integrates stirring, mixing, centrifugal separation, discharging and cleaning, automation and continuity of the production process are achieved, the number of times of material transfer can be reduced, meanwhile, the equipment is reasonable in structural design and easy and convenient to operate, the skill requirement for operators is lowered, and the flexibility and adaptability of a production line are improved.

Description

Technical Field

[0001] The invention relates to the technical field of ink processing, and in particular to a magnetic ink preparation device and a preparation method. Background Art

[0002] Magnetic ink is mainly used in the field of anti-counterfeiting printing and has excellent anti-counterfeiting performance. The anti-counterfeiting principle of magnetic ink is that the pigment uses magnetic substances, such as iron oxide or iron oxide is added with cobalt, manganese and other chemicals. The magnetic signal can be detected by a magnetic detector. Nano magnetic ink refers to ink prepared by using nano materials as the pigment of ink, and nano iron oxide is the most widely used ink pigment.

[0003] However, nano-iron oxide is usually processed by co-precipitation: a solution containing metal ions (such as a mixed solution of Fe2+ and Fe3+) is slowly added dropwise to an alkaline solution containing a precipitant. As the pH value increases, the metal ions begin to precipitate and generate nano-magnetic particles (such as Fe3O4). By controlling the reaction conditions (such as dropping acceleration, stirring speed, reaction temperature, etc.), nano-magnetic materials with specific size and morphology can be obtained.

[0004] The existing processing equipment also has the following disadvantages during use: after the reaction in the reactor, the material needs to be transported to other steps for filtering and washing, which is not only inconvenient to transport, but also needs to be stirred and loaded by other equipment before the reaction, resulting in low processing efficiency. Summary of the invention

[0005] The purpose of the present invention is to solve the problem in the prior art that after the reaction in the reactor, the material needs to be transported to other steps for filtering and washing, which is not only inconvenient to transport, but also needs to be stirred and loaded by other equipment before the reaction, resulting in low processing efficiency. A magnetic ink preparation device and preparation method are proposed to solve the problem that after the reaction in the reactor, the material needs to be transported to other steps for filtering and washing, which is not only inconvenient to transport, but also needs to be stirred and loaded by other equipment before the reaction, resulting in low processing efficiency.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] A magnetic ink preparation device comprises a reaction kettle, wherein three barrels are fixedly provided on the top of the reaction kettle, a stirring shaft is rotatably provided in the barrel, a plurality of stirring spoons for stirring materials are fixedly provided on the outer wall of the stirring shaft, and a discharge mechanism is provided at the bottom of the barrel for discharging the mixed materials in the barrel into the reaction kettle;

[0008] A rotating disk, the rotating disk is rotatably arranged on the bottom wall of the reactor, a filter cartridge is rotatably arranged on the top of the rotating disk, a mounting seat is fixedly arranged on the top of the reactor, a motor is fixedly arranged on one side of the mounting seat, a rotating cylinder is penetrated in the filter cartridge, the top end of the rotating cylinder is fixedly connected to the motor, two scrapers are arranged on the outer wall of the rotating cylinder for stirring and mixing the materials in the filter cartridge, a second rotating ring is rotatably arranged on the bottom wall of the filter cartridge, the two scrapers are fixedly connected to the second rotating ring for supporting the scrapers, and the bottom ends of the multiple stirring shafts are transmission-connected to the output end of the motor for driving the multiple stirring shafts to rotate at the same time;

[0009] The bottom of the filter cylinder and the rotating disk are both provided with two matching discharge holes for discharging materials;

[0010] A control mechanism is arranged in the reactor, and is used to control the rotation of the filter cylinder and the rotating disk to centrifugally separate and discharge the materials, and to control the discharge of the materials in the cylinder with the discharge mechanism;

[0011] A drain pipe, which is fixedly installed at the bottom of the reactor and has a valve for controlling the discharge of liquid;

[0012] The cleaning mechanism is arranged on the reaction kettle and is used for cleaning the material after centrifugal separation.

[0013] In one possible design, the discharge mechanism includes a first discharge pipe penetrating through the bottom walls of two of the barrels, an extension portion penetrating the bottom of the other barrel, a rotating block rotatably provided at the bottom of the extension portion, a fixed block rotatably provided at the bottom of the rotating block, second feed holes for matching use are provided at the tops of the fixed block and the rotating block, the rotating block is transmission-connected to the corresponding stirring shaft, and discharge is performed when the two second feed holes correspond, a second discharge pipe is fixedly provided at the bottom of the fixed block, a top cover that contacts the bottom wall of the barrel is fixedly provided at the tops of the first discharge pipe and the extension portion, a plurality of first feed holes are provided on the outer walls of the first discharge pipe and the extension portion, and the two first discharge pipes and the second discharge pipes are used in conjunction with the control mechanism to drive the first discharge pipe and the extension portion to move up and down.

[0014] In a possible design, the outer wall sliding sleeve of the rotating cylinder is provided with a sleeve, and the sleeve is fixedly connected to the output end of the motor. The sleeve and the outer walls of multiple stirring shafts are fixedly provided with synchronous wheels, and the outer walls of the multiple synchronous wheels are transmission-connected with the same double-sided synchronous belt.

[0015] In a possible design, the control mechanism includes a plurality of electric push rods which pass through and are fixed on the top of the reactor, a connecting disk is slidably provided in the filter cylinder, the output ends of the plurality of electric push rods are fixedly connected to the connecting disk, the connecting disk is transmission-connected to the rotating cylinder, a first clamping ring is fixedly provided on the inner wall of the filter cylinder, a guide cylinder is fixedly provided on the bottom of the rotating disk, a fourth clamping ring is fixedly provided in the guide cylinder, the bottom end of the rotating cylinder passes through the first clamping ring and is fixedly sleeved with a third clamping ring used in conjunction with the fourth clamping ring, a second clamping ring is slidably sleeved on the outer wall of the rotating cylinder, a second spring is sleeved on the outer wall of the rotating cylinder, the two ends of the second spring are respectively fixedly connected to the outer wall of the rotating cylinder and the top of the second clamping ring, and when the electric push rod is started to extend, the second clamping ring can be driven to engage with the first clamping ring and the third clamping ring can be driven to engage with the fourth clamping ring in turn.

[0016] In a possible design, a protective cylinder is slidably sleeved on the outer wall of the rotating cylinder. The protective cylinder is rotatably arranged on the bottom wall of the filter cylinder for protecting the second clamping ring and the first clamping ring. The scraper is fixed on the outer wall of the protective cylinder.

[0017] In a possible design, a first fixing ring is fixedly sleeved on the outer wall of the rotating cylinder, and a ring located above the first fixing ring is sleeved on the outer wall of the rotating cylinder. A plurality of support rods are fixedly arranged between the ring and the connecting plate for driving the rotating cylinder to move downward. A first tension spring is arranged in the sleeve, and two ends of the first tension spring are respectively fixedly connected to the top wall of the sleeve and the top of the rotating cylinder for driving the rotating cylinder to move upward.

[0018] In a possible design, the first discharge pipe and the second discharge pipe are both slidably arranged on the connecting plate, the bottom ends of the first discharge pipe and the second discharge pipe are both fixedly sleeved with a second fixing ring, the first discharge pipe and the second discharge pipe are both sleeved with a first spring located between the second fixing ring and the connecting plate, the two ends of the first spring are respectively fixedly connected to the bottom of the connecting plate and the top of the second fixing ring, so as to drive the first discharge pipe and the second discharge pipe to move up and down.

[0019] In a possible design, the outer wall fixing sleeve of the rotating block is provided with a second gear, and the outer wall fixing sleeve of one of the stirring shafts is provided with a first gear meshing with the second gear for driving the rotating block to rotate.

[0020] In a possible design, the cleaning mechanism includes a water pump arranged on the top of the reactor, a first rotating ring is rotatably sleeved on the outer wall of the sleeve, a plurality of water inlet holes corresponding to the first rotating ring are opened on the outer wall of the sleeve, a plurality of drainage holes are opened on the outer wall of the rotating cylinder, the water inlet end of the water pump is connected to an external water source through a pipeline, and the drainage end of the water pump is connected to the first rotating ring through a pipeline.

[0021] A method for preparing a magnetic ink preparation device comprises the following steps:

[0022] S1. First, add an appropriate amount of precursor and solvent into two corresponding barrels, then add an appropriate amount of precipitant solution and solvent into another barrel, and start the motor to drive the stirring shaft to stir the liquid in the barrel to mix;

[0023] S2, then start the electric push rod to retract and drive the first discharge pipe to move upward, at this time, the liquid in the barrel enters the first discharge pipe through the first feed hole and is discharged into the reactor, and the liquid in the other barrel enters the extension part through the first feed hole, and at the same time, start the motor to drive the rotating barrel and the stirring shaft to stir, so as to further mix;

[0024] S3. At the same time, the stirring shaft can drive the rotating block to rotate during the rotation. When the two second feed holes correspond to each other, the liquid in the extension part can be discharged into the reactor through the second discharge pipe and mixed again until the liquid in the barrel is completely discharged into the reactor, and the electric push rod is started to extend to drive the top cover to seal the barrel;

[0025] S4. After the reaction is completed, the electric push rod is started and fully extended to drive the rotating drum to move downward to limit the filter drum and the rotating disk, and the motor is started to drive the rotating drum to rotate to separate the solid and liquid materials. At the same time, the valve on the drain pipe is opened, and the separated solids remain in the filter drum;

[0026] S5. After separation is completed, start the water pump to pump water from the outside to wash the solids;

[0027] S6. Finally, the electric push rod is started to retract, the limit on the rotating disk is released, and then the motor is started to drive the filter cartridge to rotate, so that the two sets of discharge holes are discharged correspondingly and transferred to the next process.

[0028] Beneficial effects: In the present invention, the magnetic ink preparation device realizes the synchronous rotation of multiple stirring shafts through the coordinated use of the synchronous wheel on the outer wall of the sleeve and the stirring shaft and the double-sided synchronous belt, simplifies the transmission structure, and improves the transmission efficiency. At the same time, the fixed connection between the sleeve and the motor ensures the stable rotation of the rotating drum, further improving the overall performance of the equipment;

[0029] In the present invention, the magnetic ink preparation device not only enhances the stirring and mixing reaction of the material in the filter cylinder through the scraper design on the outer wall of the rotating cylinder, but also improves the stability and durability of the scraper through the support of the second rotating ring. In addition, the setting of the cleaning mechanism enables the material after centrifugal separation to be cleaned in time, ensuring the cleanliness of the product and the quality of subsequent processing;

[0030] In the present invention, the magnetic ink preparation device can pre-mix the materials first and then perform total mixing through the coordinated use of the barrel and the reactor, which can improve the mixing effect and the reaction effect. During the reaction, the barrel can still be filled with materials, which further improves the processing efficiency.

[0031] In the present invention, the magnetic ink preparation device realizes the flexible lifting and lowering of the rotating drum through the coordinated use of the first fixing ring, the sleeve ring, the support rod and the first tension spring. When the electric push rod is extended, the support rod drives the rotating drum to descend; when the electric push rod is retracted, the elastic force of the first tension spring causes the rotating drum to reset and rise. This design not only ensures the stability of the lifting and lowering, but also simplifies the operation process, and realizes the automatic control of the connection between the filter drum and the rotating disk. The extension of the electric push rod can sequentially drive the engagement of the second clamping ring with the first clamping ring, and the third clamping ring with the fourth clamping ring, thereby ensuring a stable connection and easy operation, thereby improving work efficiency and connection accuracy.

[0032] In the present invention, the entire magnetic ink preparation device integrates stirring, mixing, centrifugal separation, discharging and cleaning, realizes the automation and continuity of the production process, and can reduce the number of material transportation times. At the same time, the equipment has a reasonable structural design and is easy to operate, which reduces the skill requirements for operators and improves the flexibility and adaptability of the production line. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 A schematic diagram of the three-dimensional structure of a magnetic ink preparation device proposed by the present invention;

[0034] Figure 2 A schematic cross-sectional view of a magnetic ink preparation device proposed by the present invention;

[0035] Figure 3 for Figure 2 A schematic diagram of the enlarged structure of the middle part A;

[0036] Figure 4 for Figure 2 The enlarged structural diagram of the middle B part;

[0037] Figure 5 A schematic diagram of the installation position structure of a stirring shaft of a magnetic ink preparation device proposed by the present invention;

[0038] Figure 6 A schematic diagram of the structure of a second discharge pipe of a magnetic ink preparation device proposed by the present invention;

[0039] Figure 7 This is a schematic diagram of the discharge hole position structure of a magnetic ink preparation device proposed by the present invention.

[0040] In the figure: 1, reactor; 2, barrel; 3, motor; 4, stirring shaft; 5, water pump; 6, drain pipe; 7, mounting base; 8, stirring spoon; 9, sleeve; 10, rotating barrel; 11, first tension spring; 12, first rotating ring; 13, water inlet hole; 14, drain hole; 15, filter barrel; 16, sleeve; 17, support rod; 18, connecting plate; 19, first fixed ring; 20, electric push rod; 21, rotating plate; 22, scraper; 23, first discharge pipe; 24, first feeding hole ; 25. Top cover; 26. Second fixed ring; 27. First spring; 28. Protective tube; 30. First clamping ring; 31. Second clamping ring; 32. Second spring; 33. Guide tube; 34. Third clamping ring; 35. Fourth clamping ring; 36. Second rotating ring; 37. Double-sided synchronous belt; 38. Second discharge pipe; 39. First gear; 40. Second gear; 41. Synchronous wheel; 42. Rotating block; 43. Fixed block; 44. Second feed hole; 45. Extension; 47. Discharge hole. DETAILED DESCRIPTION

[0041] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0042] Example 1

[0043] Reference Figure 1-Figure 7 A preparation device comprises: a reaction kettle 1, three barrels 2 are fixedly provided on the top of the reaction kettle 1, and are used to respectively load the raw materials required for preparing magnetic ink. A stirring shaft 4 is rotatably provided in each barrel 2, and a plurality of stirring spoons 8 are fixedly installed on the outer wall of the stirring shaft 4, and are used to stir and mix the raw materials in the barrel 2.

[0044] In order to effectively discharge the mixed material in the barrel 2, a unique discharge mechanism is designed in this embodiment. Specifically, the bottom walls of the two barrels 2 are penetrated with a first discharge pipe 23, and the tops of the two first discharge pipes 23 are fixed with a top cover 25 that contacts the bottom wall of the barrel 2 to prevent leakage of raw materials during mixing. The outer wall of the first discharge pipe 23 is provided with a plurality of first feed holes 24 for allowing the raw materials to pass through during discharge.

[0045] The bottom of the other barrel 2 is penetrated by an extension part 45, and a rotating block 42 is rotatably mounted on the bottom of the extension part 45, and a fixed block 43 is rotatably mounted on the bottom of the rotating block 42. The tops of the fixed block 43 and the rotating block 42 are both provided with second feed holes 44 for matching use. When the two second feed holes 44 correspond to each other, the raw materials can pass through and enter the second discharge pipe 38 for discharge. The bottom of the fixed block 43 is fixedly connected to the second discharge pipe 38 to collect and discharge the raw materials.

[0046] In addition, the lifting and lowering movement of all the discharge pipes (including the first discharge pipe 23 and the second discharge pipe 38) are used in conjunction with the control mechanism to achieve precise control of the discharge timing and amount.

[0047] The bottom wall of the reactor 1 is rotatably mounted with a rotating disk 21, and the top of the rotating disk 21 is rotatably mounted with a filter cartridge 15. A rotating cylinder 10 is mounted inside the filter cartridge 15, and the top of the rotating cylinder 10 is fixedly connected to the motor 3, and the motor 3 is fixed to the top of the reactor 1 through the mounting seat 7. Two scrapers 22 are arranged on the outer wall of the rotating cylinder 10, and the bottom of the scraper 22 is fixedly connected to the second rotating ring 36, and the second rotating ring 36 is rotatably mounted on the bottom wall of the filter cartridge 15 to support the scraper 22 and ensure its stable rotation. The rotation of the scraper 22 is used to stir and mix the materials in the filter cartridge 15 to improve the reaction efficiency.

[0048] The bottom of the filter cartridge 15 and the rotating disk 21 are both provided with two discharge holes 47 for use together. When discharge is required, the discharge holes 47 of the filter cartridge 15 and the rotating disk 21 are aligned through a control mechanism to discharge the centrifugally separated material.

[0049] In order to realize the simultaneous rotation of multiple stirring shafts 4, a transmission method of a synchronous wheel 41 and a double-sided synchronous belt 37 is adopted. Specifically, a sleeve 9 is slidably sleeved on the outer wall of the rotating cylinder 10, and the sleeve 9 is fixedly connected to the output end of the motor 3. The sleeve 9 and the outer walls of the multiple stirring shafts 4 are fixedly sleeved with a synchronous wheel 41, and the outer walls of the multiple synchronous wheels 41 are transmission-connected with the same double-sided synchronous belt 37. When the motor 3 is started, the synchronous wheel 41 is driven to rotate through the sleeve 9, and then the multiple stirring shafts 4 are rotated simultaneously through the double-sided synchronous belt 37.

[0050] The control mechanism is arranged in the reactor 1, and is used to control the rotation of the filter cylinder 15 and the rotating disk 21 to realize the precise control of the centrifugal separation and discharge of the material. At the same time, the control mechanism is also used in conjunction with the discharge mechanism to control the timely discharge of the material in the barrel 2.

[0051] The cleaning mechanism is arranged on the reactor 1, and is used to clean the material after centrifugal separation after the preparation process is completed, so as to ensure the product quality and maintain the cleanliness of the equipment.

[0052] The control mechanism mainly consists of a plurality of electric push rods 20, a connecting plate 18, a first clamping ring 30, a guide cylinder 33, a fourth clamping ring 35, a third clamping ring 34, a second clamping ring 31 and a second spring 32. The electric push rod 20 is fixedly arranged on the top of the reactor 1, and its output end is fixedly connected to the connecting plate 18. The connecting plate 18 and the rotating cylinder 10 are connected to each other through a suitable transmission mechanism to ensure that the extension and retraction of the electric push rod 20 can drive the lifting and lowering of the rotating cylinder 10.

[0053] The inner wall of the filter cylinder 15 is fixedly provided with a first snap ring 30, which is used to cooperate with the second snap ring 31 to achieve engagement. The bottom of the rotating disk 21 is fixedly provided with a guide cylinder 33, and a fourth snap ring 35 is provided in the guide cylinder 33, which is used in conjunction with the third snap ring 34 at the bottom end of the rotating cylinder 10. The second snap ring 31 is slidably sleeved on the outer wall of the rotating cylinder 10, and is connected to the rotating cylinder 10 through the second spring 32. The two ends of the second spring 32 are respectively fixedly connected to the outer wall of the rotating cylinder 10 and the top of the second snap ring 31. When the electric push rod 20 is extended, it first pushes the connecting disk 18 and the rotating cylinder 10 to descend, so that the second snap ring 31 is engaged with the first snap ring 30, and then continues to descend so that the third snap ring 34 is engaged with the fourth snap ring 35, thereby achieving a stable connection between the filter cylinder 15 and the rotating disk 21. At this time, the motor 3 can simultaneously drive the filter cylinder 15 and the rotating disk 21 to rotate, which is convenient for centrifugal separation operation.

[0054] In order to protect the second clamping ring 31 and the first clamping ring 30 from being damaged during operation, a protective cylinder 28 is slidably sleeved on the outer wall of the rotating cylinder 10. The protective cylinder 28 is rotatably arranged on the bottom wall of the filter cylinder 15, and the scraper 22 is fixedly arranged on the outer wall of the protective cylinder 28, so that the internal structure can be protected and the scraper 22 can be ensured to rotate with the rotating cylinder 10 to stir and mix the materials in the filter cylinder 15.

[0055] The cleaning mechanism is mainly composed of a water pump 5, a first rotating ring 12, a water inlet 13, a drain hole 14 and corresponding pipes. The water pump 5 is arranged at the top of the reactor 1, and its water inlet end is connected to the external water source through a pipe, and its drain end is connected to the first rotating ring 12 through a pipe. The outer wall of the sleeve 9 is rotatably sleeved with a first rotating ring 12, and the outer wall of the sleeve 9 is provided with a plurality of water inlet holes 13 corresponding to the first rotating ring 12. The outer wall of the rotating drum 10 is provided with a plurality of drain holes 14. When working, the water pump 5 pumps water from the external water source into the first rotating ring 12, enters the space between the sleeve 9 and the rotating drum 10 through the water inlet hole 13, and then sprays out through the drain hole 14 to clean the material after centrifugal separation.

[0056] The present application can be used in the field of ink processing, and can also be used in other fields applicable to the present application.

[0057] Example 2

[0058] refer to Figure 1-Figure 7, improved on the basis of Example 1: A magnetic ink preparation device, which is applied to the field of ink processing. In order to achieve precise lifting and lowering control of the rotating cylinder 10, a first fixed ring 19 is fixedly sleeved on the outer wall of the rotating cylinder 10, and a sleeve ring 16 is arranged above it. The sleeve ring 16 is fixedly connected to the connecting disk 18 by a plurality of support rods 17. When the connecting disk 18 is lifted or lowered, the sleeve ring 16 is driven down by the support rods 17, and when the sleeve ring 16 contacts the first fixed ring 19, it can drive the rotating cylinder 10 to move together. At the same time, a first tension spring 11 is arranged in the sleeve 9, and its two ends are fixedly connected to the top wall of the sleeve 9 and the top of the rotating cylinder 10 respectively, so as to drive the rotating cylinder 10 to move upward and reset by the elastic force of the first tension spring 11 when the electric push rod 20 is contracted.

[0059] In order to realize the lifting and lowering control of the first discharge pipe 23 and the second discharge pipe 38, both are slidably arranged on the connecting plate 18. A second fixing ring 26 is fixedly sleeved on the bottom ends of the first discharge pipe 23 and the second discharge pipe 38, and a first spring 27 is sleeved between the second fixing ring 26 and the connecting plate 18. The two ends of the first spring 27 are respectively fixedly connected to the bottom of the connecting plate 18 and the top of the second fixing ring 26. When the connecting plate 18 is lifted or lowered, the first discharge pipe 23 and the second discharge pipe 38 are driven to lift or lower together through the first spring 27, thereby realizing the precise control of discharge.

[0060] In order to realize the automatic rotation of the rotating block 42, a second gear 40 is fixedly sleeved on the outer wall of the rotating block 42, and a first gear 39 meshing with the second gear 40 is fixedly sleeved on the outer wall of one of the stirring shafts 4. When the stirring shaft 4 rotates, the first gear 39 and the second gear 40 are meshed and driven to drive the rotating block 42 to rotate together, thereby realizing the opening and closing of the second feeding hole 44.

[0061] A method for preparing a magnetic ink preparation device comprises the following steps:

[0062] S1. First, add an appropriate amount of precursor and solvent into two corresponding barrels 2, then add an appropriate amount of precipitant solution and solvent into another barrel 2, and start the motor 3 to drive the stirring shaft 4 to stir the liquid in the barrel 2 to mix;

[0063] S2, then start the electric push rod 20 to retract and drive the first discharge pipe 23 to move upward, at this time, the liquid in the barrel 2 enters the first discharge pipe 23 through the first feed hole 24 and is discharged into the reactor 1, and the liquid in the other barrel 2 enters the extension part 45 through the first feed hole 24, and at the same time start the motor 3 to drive the rotating barrel 10 and the stirring shaft 4 to stir, so as to further mix;

[0064] S3. At the same time, the stirring shaft 4 can drive the rotating block 42 to rotate during the rotation. When the two second feed holes 44 correspond to each other, the liquid in the extension part 45 can be discharged into the reactor 1 through the second discharge pipe 38 and mixed again until the liquid in the barrel 2 is completely discharged into the reactor 1, and the electric push rod 20 is started to extend to drive the top cover 25 to seal the barrel 2.

[0065] S4, after the reaction is completed, the electric push rod 20 is started and fully extended, driving the rotating drum 10 to move downward to limit the filter drum 15 and the rotating disk 21, and the motor 3 is started to drive the rotating drum 10 to rotate, so as to separate the solid and liquid of the material, and at the same time, the valve on the drain pipe 6 is opened, and the separated solid remains in the filter drum 15;

[0066] S5, after separation is completed, start the water pump 5 to pump water from the outside to wash the solids;

[0067] S6. Finally, the electric push rod 20 is started to retract, the limit on the rotating disk 21 is released, and then the motor 3 is started to drive the filter cartridge 15 to rotate, so that the two groups of discharge holes 47 are discharged correspondingly, and then transferred to the next process.

[0068] In the present application, firstly, appropriate amounts of precursors FeCl2·4H2O and FeCl3 and solvent distilled water are added into two corresponding barrels 2, and then appropriate amounts of precipitant solution NaOH and solvent distilled water are added into another barrel 2, and the motor 3 is started. The rotation of the motor 3 can drive the sleeve 9 to rotate. The rotation of the sleeve 9 can drive the three stirring shafts 4 to rotate simultaneously through the double-sided synchronous belt 37 and the synchronous wheel 41. The rotation of the stirring shaft 4 can drive the stirring spoon 8 to stir the liquid in the barrel 2 to mix it;

[0069] Then, the electric push rod 20 is started to retract, which can drive the connecting plate 18 to move upward. The upward movement of the connecting plate 18 can drive the first discharge pipe 23 to move upward through the first spring 27, so that the top cover 25 can be away from the bottom wall of the barrel 2, and the first feed hole 24 can be exposed in the barrel 2. At this time, the liquid in the barrel 2 enters the first discharge pipe 23 through the first feed hole 24 and is discharged into the reactor 1, while the liquid in the other barrel 2 enters the extension part 45 through the first feed hole 24. At the same time, the motor 3 is started to drive the sleeve 9 to rotate. The rotation of the sleeve 9 can drive the rotating cylinder 10 to rotate. The rotation of the rotating cylinder 10 can drive the protective cylinder 28 to rotate. The rotation of the protective cylinder 28 can drive the scraper 22 to stir the internal liquid to further mix it.

[0070] At the same time, the stirring shaft 4 can drive the first gear 39 to rotate during the rotation, and the rotation of the first gear 39 can drive the rotating block 42 to rotate through the second gear 40. When the two second feeding holes 44 correspond to each other, the liquid in the extension part 45 can be discharged into the reactor 1 through the second discharge pipe 38 and mixed again until the liquid in the barrel 2 is completely discharged into the reactor 1, and the electric push rod 20 is started to extend to drive the connecting plate 18 to move downward. The movement of the connecting plate 18 can drive the first discharge pipe 23 to move downward through the first spring 27, and drive the top cover 25 to seal the barrel 2. At this time, an appropriate amount of material can be added to the barrel 2 for further mixing;

[0071] After the reaction is completed, the electric push rod 20 is fully extended to drive the connecting plate 18 to move downward. The connecting plate 18 can move downward through the support rod 17 to drive the collar 16 to move downward. The collar 16 can move downward to drive the first fixing ring 19 to move downward, thereby driving the rotating drum 10 to move downward. The rotating drum 10 can move downward to drive the second clamping ring 31 to move downward through the second spring 32, so that the second clamping ring 31 is engaged with the first clamping ring 30, and the rotating drum 10 continues to move downward to compress the second spring 32 and drive the third clamping ring 34 to engage with the fourth clamping ring 35, while limiting the filter drum 15 and the rotating disk 21, and starting the motor 3 to drive the rotating drum 10 to rotate. The rotation of the rotating drum 10 can drive the filter drum 15 and the rotating disk 21 to rotate at the same time, and the centrifugal force is used to separate the solid and liquid materials. At the same time, the valve on the drain pipe 6 is opened, and the separated solids remain in the filter drum 15;

[0072] After separation is completed, the water pump 5 is started again to pump water from the outside. The water can enter the sleeve 9 through the first rotating ring 12 and the water inlet 13, and then be discharged into the filter cylinder 15 through the drainage hole 14 on the outer wall of the rotating cylinder 10 to wash the solids.

[0073] Finally, the electric push rod 20 is started to retract, driving the connecting plate 18 to move upward. The upward movement of the connecting plate 18 can drive the sleeve 16 to move upward, and the rotating drum 10 can reset and move upward under the action of the first tension spring 11, so that the third clamping ring 34 is separated from the fourth clamping ring 35, and the limit on the rotating disk 21 is released. The motor 3 is started again to drive the filter drum 15 to rotate, so that the two groups of discharge holes 47 correspond to each other. At this time, the solids in the filter drum 15 are discharged through the two groups of discharge holes 47, and then the electric push rod 20 is started again to reset and retract, driving the second clamping ring 31 to separate from the first clamping ring 30, and then the motor 3 is started again to drive the rotating drum 10 to rotate, driving the protective drum 28 to rotate. The rotation of the protective drum 28 can drive the scraper 22 to rotate, and can scrape the solids in the filter drum 15 until the solids in the filter drum 15 are completely cleaned out and transferred to the next process.

[0074] However, as is well known to those skilled in the art, the working principles and wiring methods of the motor 3, water pump 5 and electric push rod 20 are commonplace, and are conventional means or common knowledge, and will not be elaborated here. Those skilled in the art can make any selections according to their needs or convenience.

[0075] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A magnetic ink preparation device, characterized in that: The invention comprises a reaction kettle (1), wherein three barrels (2) are fixedly provided on the top of the reaction kettle (1), a stirring shaft (4) is rotatably provided inside the barrel (2), a plurality of stirring spoons (8) for stirring materials are fixedly provided on the outer wall of the stirring shaft (4), and a discharge mechanism is provided at the bottom of the barrel (2) for discharging the mixed materials in the barrel (2) into the reaction kettle (1); A rotating disk (21), the rotating disk (21) penetrates and is rotatably arranged on the bottom wall of the reaction kettle (1), a filter cartridge (15) is rotatably arranged on the top of the rotating disk (21), a mounting seat (7) is fixedly arranged on the top of the reaction kettle (1), a motor (3) is fixedly arranged on one side of the mounting seat (7), a rotating cylinder (10) is penetrated by the filter cartridge (15), the top end of the rotating cylinder (10) is fixedly connected to the motor (3), two scrapers (22) are arranged on the outer wall of the rotating cylinder (10) for stirring and mixing the materials in the filter cartridge (15), a second rotating ring (36) is rotatably arranged on the bottom wall of the filter cartridge (15), the two scrapers (22) are fixedly connected to the second rotating ring (36) for supporting the scrapers (22), the bottom ends of the plurality of stirring shafts (4) are transmission-connected to the output end of the motor (3) for driving the plurality of stirring shafts (4) to rotate simultaneously; The bottom of the filter cylinder (15) and the rotating disk (21) are both provided with two discharge holes (47) for use in conjunction with each other for discharge; A control mechanism is arranged in the reaction kettle (1) and is used to control the rotation of the filter cylinder (15) and the rotating disk (21) to centrifugally separate and discharge the materials, and to control the discharge of the materials in the barrel (2) together with the discharge mechanism; A drain pipe (6), the drain pipe (6) is fixedly arranged on the bottom of the reaction kettle (1), and a valve is arranged on the drain pipe (6) for controlling the discharge of liquid; The cleaning mechanism is arranged on the reaction kettle (1) and is used for cleaning the material after centrifugal separation.

2. A magnetic ink preparation device according to claim 1, characterized in that: The discharge mechanism comprises a first discharge pipe (23) penetrating the bottom wall of two of the barrels (2); an extension portion (45) penetrating the bottom of the other barrel (2); a rotating block (42) rotatably provided at the bottom of the extension portion (45); a fixed block (43) rotatably provided at the bottom of the rotating block (42); a second feed hole (44) for matching use is provided at the top of the fixed block (43) and the rotating block (42); the rotating block (42) is drivingly connected to the corresponding stirring shaft (4); 4) correspondingly, discharging is performed, a second discharging pipe (38) is fixedly provided at the bottom of the fixed block (43), a top cover (25) which contacts the bottom wall of the barrel (2) is fixedly provided at the top of the first discharging pipe (23) and the extension part (45), a plurality of first feeding holes (24) are provided on the outer walls of the first discharging pipe (23) and the extension part (45), and the two first discharging pipes (23) and the second discharging pipes (38) are used in conjunction with a control mechanism to drive the first discharging pipe (23) and the extension part (45) to move up and down.

3. A magnetic ink preparation device according to claim 2, characterized in that: The outer wall of the rotating cylinder (10) is slidably sleeved with a sleeve (9), and the sleeve (9) is fixedly connected to the output end of the motor (3). The sleeve (9) and the outer walls of the plurality of stirring shafts (4) are both fixedly sleeved with synchronous wheels (41), and the outer walls of the plurality of synchronous wheels (41) are transmission-connected with the same double-sided synchronous belt (37).

4. A magnetic ink preparation device according to claim 3, characterized in that: The control mechanism comprises a plurality of electric push rods (20) which penetrate and are fixedly arranged on the top of the reaction kettle (1); a connecting disk (18) is slidably arranged in the filter cylinder (15); the output ends of the plurality of electric push rods (20) are fixedly connected to the connecting disk (18); the connecting disk (18) is transmission-connected to the rotating cylinder (10); a first clamping ring (30) is fixedly arranged on the inner wall of the filter cylinder (15); a guide cylinder (33) is fixedly arranged at the bottom of the rotating disk (21); a fourth clamping ring (35) is fixedly arranged in the guide cylinder (33); and the bottom end of the rotating cylinder (10) is fixedly provided with a first clamping ring (30). A third snap ring (34) is fixedly sleeved through the first snap ring (30) and is used in conjunction with a fourth snap ring (35). A second snap ring (31) is slidably sleeved on the outer wall of the rotating cylinder (10). A second spring (32) is sleeved on the outer wall of the rotating cylinder (10). Two ends of the second spring (32) are respectively fixedly connected to the outer wall of the rotating cylinder (10) and the top of the second snap ring (31). When the electric push rod (20) is started and extended, the second snap ring (31) can be sequentially driven to engage with the first snap ring (30) and the third snap ring (34) can be sequentially driven to engage with the fourth snap ring (35).

5. A magnetic ink preparation device according to claim 4, characterized in that: The outer wall of the rotating cylinder (10) is slidably sleeved with a protective cylinder (28), and the protective cylinder (28) is rotatably arranged on the bottom wall of the filter cylinder (15) for protecting the second clamping ring (31) and the first clamping ring (30). The scraper (22) is fixedly arranged on the outer wall of the protective cylinder (28).

6. A magnetic ink preparation device according to claim 4, characterized in that: The outer wall of the rotating cylinder (10) is fixedly sleeved with a first fixing ring (19), and the outer wall of the rotating cylinder (10) is sleeved with a sleeve ring (16) located above the first fixing ring (19). A plurality of support rods (17) are fixedly arranged between the sleeve ring (16) and the connecting plate (18) for driving the rotating cylinder (10) to move downward. A first tension spring (11) is arranged inside the sleeve (9), and the two ends of the first tension spring (11) are respectively fixedly connected to the top wall of the sleeve (9) and the top of the rotating cylinder (10) for driving the rotating cylinder (10) to move upward.

7. A magnetic ink preparation device according to claim 4, characterized in that: The first discharge pipe (23) and the second discharge pipe (38) are both slidably arranged on the connecting plate (18); the bottom ends of the first discharge pipe (23) and the second discharge pipe (38) are fixedly sleeved with a second fixing ring (26); the first discharge pipe (23) and the second discharge pipe (38) are both sleeved with a first spring (27) located between the second fixing ring (26) and the connecting plate (18); the two ends of the first spring (27) are respectively fixedly connected to the bottom of the connecting plate (18) and the top of the second fixing ring (26), so as to drive the first discharge pipe (23) and the second discharge pipe (38) to move up and down.

8. A magnetic ink preparation device according to claim 2, characterized in that: The outer wall fixing sleeve of the rotating block (42) is provided with a second gear (40), and the outer wall fixing sleeve of one of the stirring shafts (4) is provided with a first gear (39) meshing with the second gear (40) for driving the rotating block (42) to rotate.

9. A magnetic ink preparation device according to claim 3, characterized in that: The cleaning mechanism comprises a water pump (5) arranged on the top of the reaction kettle (1); a first rotating ring (12) is rotatably sleeved on the outer wall of the sleeve (9); a plurality of water inlet holes (13) corresponding to the first rotating ring (12) are opened on the outer wall of the sleeve (9); a plurality of water discharge holes (14) are opened on the outer wall of the rotating cylinder (10); a water inlet end of the water pump (5) is connected to an external water source through a pipeline, and a water discharge end of the water pump (5) is connected to the first rotating ring (12) through a pipeline.

10. A method for preparing a magnetic ink preparation device according to any one of claims 1 to 9, characterized in that: The following steps are involved: S1. First, add appropriate amounts of precursor and solvent into two corresponding barrels (2), then add appropriate amounts of precipitant solution and solvent into another barrel (2), and start the motor (3) to drive the stirring shaft (4) to stir the liquid in the barrel (2) to mix them; S2, then start the electric push rod (20) to retract and drive the first discharge pipe (23) to move upward, at this time, the liquid in the barrel (2) enters the first discharge pipe (23) through the first feed hole (24) and is discharged into the reactor (1), while the liquid in the other barrel (2) enters the extension part (45) through the first feed hole (24), and at the same time start the motor (3) to drive the rotating barrel (10) and the stirring shaft (4) to stir, so as to further mix them; S3. At the same time, the stirring shaft (4) can drive the rotating block (42) to rotate during the rotation process. When the two second feed holes (44) correspond to each other, the liquid in the extension part (45) can be discharged into the reaction kettle (1) through the second discharge pipe (38) and mixed again until the liquid in the barrel (2) is completely discharged into the reaction kettle (1), and the electric push rod (20) is started to extend to drive the top cover (25) to seal the barrel (2); S4, after the reaction is completed, the electric push rod (20) is started and fully extended, driving the rotating cylinder (10) to move downward to limit the filter cylinder (15) and the rotating disk (21), and the motor (3) is started to drive the rotating cylinder (10) to rotate, so as to separate the solid and liquid of the material, and at the same time, the valve on the drain pipe (6) is opened, and the separated solid remains in the filter cylinder (15); S5. After separation is completed, the water pump (5) is started again to pump water from the outside to wash the solids; S6. Finally, the electric push rod (20) is started to retract, the limit of the rotating disk (21) is released, and the motor (3) is started again to drive the filter cartridge (15) to rotate, so that the two groups of discharge holes (47) are discharged correspondingly, and the next process is transferred.

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