Novel water-based paint protection glue, and preparation device and preparation process of protection glue

Abstract

The invention discloses novel water-based paint protection glue and a preparation device and a preparation process of the protection glue, and relates to the technical field of paint production. The invention discloses a preparation device of novel water-based paint protection glue. Comprising a stirring mechanism and a grinding mechanism, a discharging opening of the stirring mechanism is connected with a feeding opening of the grinding mechanism through a connecting pipe; the grinding mechanism comprises an upper machine shell, a lower machine shell, a grinding body, a grinding shaft, a driving grinding disc, a driven grinding disc, a filter screen, a one-way valve, a discharging pipe, a first control valve, a grinding motor and a reciprocating mechanism. The stirring mechanism and the grinding mechanism are connected through the connecting pipe, so that the circulation process among different devices is reduced, and the complexity of the process is reduced; the overall structure of the grinding mechanism is redesigned, material particles which do not meet the standard can be ground again, the situation that a filter screen is blocked can be avoided, manpower is saved, and the operation efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of coating production, and in particular to a novel water-based coating protective glue and a preparation device and a preparation process of the protective glue. Background Art

[0002] Paint protection glue is a key component in paint. The role of paint protection glue in paint is to enhance the performance of the coating, mainly including improving the adhesion, wear resistance, UV resistance and waterproof performance of the coating. Paint protection glue is usually used as part of the paint formula and mixed with other ingredients to achieve better protection effect.

[0003] According to the type of solvent, protective glue is mainly divided into water-based protective glue and solvent-based protective glue. Solvent-based protective glue has advantages over water-based protective glue such as better durability and adhesion; however, solvent-based protective glue usually contains higher volatile organic compounds during use, which may have impacts on the environment and human health.

[0004] Based on environmental protection and production cost considerations, the applicant has designed a water-based protective adhesive, the main ingredients of which include: sodium silicate, magnesium oxide, viscosity reducer, ammonium salt stabilizer, industrial lithium salt, white carbon black and water. At present, the preparation process of water-based protective adhesive generally includes the following steps: (1) Pretreatment: Weigh the ingredients of the water-based protective adhesive formula and prepare the dispersing solvent; (2) Mixing and dispersing: Add dispersing solvent into the agitator, slowly add filler and other additives into the dispersing solvent, and start stirring until the dispersion is uniform; (3) Grinding: The mixed slurry is transferred to a grinder for fine grinding to ensure uniform and fine particles; (4) Final adjustment: Adjust the viscosity and pH value of the solution after grinding as needed; (5) Packaging and storage: Pack the prepared protective glue.

[0005] Regarding the preparation process of the above-mentioned water-based protective glue, the inventor believes that there are the following technical problems: (A) Generally, the mixer and grinder are two independent devices. The operation from step (2) to step (3) above increases the transfer process between devices and the complexity of the process. (B) In the above step (3), after the material is ground, it is necessary to screen the material particle size to ensure product quality. For the material particle size screening operation, a filter is generally added to the discharge port of the grinder for screening. However, the filtering operation is a continuous process, which will cause the material to block the mesh of the filter, so that the staff needs to regularly dismantle and clean the filter. This not only wastes manpower, but also requires the equipment to be shut down during the removal of the filter, affecting the operation efficiency. (C) At the same time, because the larger particles are blocked at the discharge port of the grinder, in order to save costs and avoid material waste, after removing the filter, the staff needs to use tools to take out the materials blocking the discharge port of the grinder and put them into the grinder again for grinding. This not only wastes manpower, but also requires the equipment to be shut down during the removal of the filter, affecting work efficiency.

[0006] Therefore, how to solve the above technical problems is a technical problem that those skilled in the art need to solve.

[0007] The information disclosed in this background technology section is only intended to enhance the understanding of the overall background of the invention and should not be regarded as an acknowledgment or any form of suggestion that the information constitutes the prior art already known to a person skilled in the art. Summary of the invention

[0008] In view of the above technical problems, the embodiments of the present invention provide a novel water-based coating protective glue and a preparation device and a preparation process of the protective glue to solve the problems raised in the above background technology.

[0009] The present invention provides the following technical solutions: A novel water-based paint protective adhesive comprises sodium silicate, magnesium oxide, a viscosity reducer, an ammonium salt stabilizer, industrial lithium salt, white carbon black and water.

[0010] Preferably, the composition comprises, by weight: 15-20 parts of sodium silicate, 10-15 parts of magnesium oxide, 5-10 parts of viscosity reducer, 5-10 parts of ammonium salt stabilizer, 5-8 parts of industrial lithium salt, 3-5 parts of white carbon black and 40-50 parts of water.

[0011] A novel preparation device for water-based paint protective glue; comprising: a stirring mechanism and a grinding mechanism; the discharge port of the stirring mechanism is connected to the feed port of the grinding mechanism through a connecting pipe; The grinding mechanism includes an upper housing, a lower housing, a grinding body, a grinding shaft, an active grinding disc, a driven grinding disc, a filter screen, a one-way valve, a discharge pipe, a first control valve, a grinding motor and a reciprocating mechanism; The upper housing is fixedly connected to the top of the lower housing, and the interiors of the lower housing and the upper housing are in a connected state; The grinding shaft is vertically arranged in the upper casing and the lower casing; the tail of the grinding shaft extends to the outside of the lower casing, and the main shaft of the grinding motor is fixedly connected to the tail of the grinding shaft; The upper casing is of a conical structure, and a conical grinding chamber is arranged inside the upper casing; the lower casing is of a cylindrical structure, and a cylindrical material temporary storage chamber is arranged inside the lower casing; The grinding body is arranged in the conical grinding cavity of the upper housing, the grinding body has a conical structure and is coaxially fixedly connected to the grinding shaft; the bottom of the grinding body is in contact with the cavity wall of the conical grinding cavity in the circumferential direction, and a plurality of flow channels are arranged on the outer wall of the grinding body at intervals; The active grinding disc, the driven grinding disc and the filter screen are all arranged in the material temporary storage cavity of the lower casing; The active grinding disc is coaxially fixed on the grinding shaft, and the outer diameter of the active grinding disc is smaller than the inner diameter of the material temporary storage chamber; a plurality of first grinding convex ridges arranged in a circular array are arranged on the upper disc surface of the active grinding disc around the grinding shaft; The driven grinding disc is located above the active grinding disc and is provided with a gap therebetween. The driven grinding disc is coaxially arranged with the grinding shaft. There is an annular flow channel hole between the inner edge of the driven grinding disc and the grinding shaft. The outer diameter of the driven grinding disc is equal to the outer diameter of the active grinding disc. The outer edge of the driven grinding disc is fixed to the wall of the temporary material storage chamber through a plurality of fixed blocks arranged at intervals. A plurality of second grinding convex ridges arranged in a circular array are provided on the lower disc surface of the driven grinding disc around the grinding shaft. The filter screen is located below the active grinding disc and close to the bottom wall of the material storage chamber; the filter screen is in a circular ring structure, the inner ring of the filter screen is passed through the grinding shaft, the inner ring aperture value of the filter screen is larger than the shaft diameter value of the grinding shaft; the outer ring aperture value of the filter screen is smaller than the inner diameter value of the material storage chamber; The filter screen is provided with a plurality of filter holes; wherein, no filter holes are provided on an outer ring of the filter screen near the outer edge of the filter screen; a plurality of one-way valves are arranged in a circular array on the outer edge of the filter screen; The reciprocating mechanism is arranged on the lower casing, and is used to drive the filter screen to move up and down along the axial direction of the grinding shaft; The discharge pipe is fixedly connected to the lower casing, the discharge pipe is arranged near the bottom of the lower casing, and the interface position of the discharge pipe and the lower casing is below the filter screen; the first control valve is arranged on the discharge pipe.

[0012] Preferably, the reciprocating mechanism includes two groups, and the two groups of reciprocating mechanisms are respectively arranged on both sides of the filter screen; Each reciprocating mechanism includes a crank rod, a long connecting rod, an articulated seat and a reciprocating motor; The reciprocating motor is fixed on the lower casing, and the main shaft of the reciprocating motor passes through the casing of the lower casing; The crank rod is fixedly connected to the main shaft of the reciprocating motor; the hinged seat is fixed to the filter screen; The upper end of the long connecting rod is hinged to the end of the crank rod, and the lower end of the long connecting rod is hinged to the hinge seat.

[0013] Preferably, a guide groove is provided on the top surface of the driven grinding disc, and the guide groove is in the shape of an inverted frustum of a cone; the height of the groove wall on the outer side of the guide groove is greater than the height of the groove wall on the inner side of the guide groove.

[0014] Preferably, a cylindrical connecting body is fixedly provided at a circumferential position at the bottom of the upper housing, an annular connecting cavity is provided on the cylindrical connecting body along its axial direction, and an internal thread is provided in the annular connecting cavity; An external thread is arranged on the outer side of the lower casing; the lower casing is threadedly connected to the internal thread of the cylindrical connector through the external thread on the outer side; an annular pressure plate is arranged on the lower casing below the external thread, and after the lower casing is threadedly connected to the upper casing, the annular pressure plate is pressed tightly against the bottom surface of the cylindrical connector.

[0015] Preferably, the bottom shell of the lower casing is an inclined structure; and a flow sensor is provided on the discharge pipe.

[0016] Preferably, a material guide piece is provided on the top of the grinding body; the material guide piece comprises a material guide shaft fixed on the top of the grinding body, and a material guide thread fixed on the material guide shaft; the material guide shaft extends into the connecting pipe.

[0017] Preferably, the stirring mechanism comprises a tank body, a stirring shaft disposed in the tank body, a stirring blade fixed on the stirring shaft, and a stirring motor fixed on the top of the tank body and drivingly connected to the stirring shaft; A feed pipe is provided at the bottom of the tank body, and a second control valve is provided on the feed pipe; The connecting pipe is fixedly connected to the bottom of the feeding pipe; the connecting pipe comprises an upper pipe and a lower pipe connected up and down; the upper pipe is conical, and the lower pipe is cylindrical; the lower pipe is connected to the feeding port of the grinding mechanism.

[0018] A working method of the device for preparing the water-based coating protective glue as described above comprises the following steps: Adding a pure water solvent into the tank, and sequentially adding a filler, magnesium oxide, and additives including sodium silicate, a viscosity reducer, an ammonium salt stabilizer, an industrial lithium salt, and white carbon black into the pure water solvent to prepare a first liquid; The stirring motor drives the stirring shaft to drive the stirring blade to disperse and stir the first liquid; after the first liquid is evenly dispersed, the second control valve is controlled to open, so that the first liquid in the tank body flows into the connecting pipe; The grinding motor drives the grinding shaft to rotate; the rotation of the grinding shaft will synchronously drive the guide shaft, the grinding body and the active grinding disc to rotate; The material guide shaft rotates to drive the material guide thread on the material guide shaft to gradually guide the first liquid in the connecting pipe into the upper housing; The grinding body rotates and rubs against the wall of the conical grinding chamber in the upper housing to grind the material particles in the material; the ground first liquid flows from the flow channel on the outer wall of the grinding body to the material temporary storage chamber in the lower housing to form the second liquid; The first control valve is controlled to open, and the second liquid in the temporary material storage chamber is filtered through the filter screen and then discharged from the discharge pipe and flows into the pre-placed storage container; According to the real-time flow rate detected by the flow sensor on the discharge pipe, when the real-time flow rate value detected during the grinding operation is less than the preset flow rate value; at this time, the filter screen is blocked, and the first control valve and the second control valve are controlled to be temporarily closed; Control the reciprocating mechanism to work. The reciprocating motor drives the crank rod to rotate and then drives the long connecting rod to drive the filter screen to move upward along the grinding axis. The up and down movement of the filter screen will shake and remove the material particles blocked on the filter screen, so that the filter screen can resume normal filtering operation. At the same time, during the downward movement of the filter screen, since there are no filter holes on a section of the outer ring of the outer edge of the filter screen, the second liquid at this position cannot flow through the filter holes during the downward pressure of the filter screen, which will generate a certain upward pressure and prompt the one-way valve to open, and the second liquid under the filter screen will accelerate to flow upward through the one-way valve; The second liquid flowing upwards will sequentially pass through the active grinding disc and the gap between the driven grinding disc and the material temporary storage chamber, and finally fall into the guide groove of the driven grinding disc. During the flow of the second liquid, part of the second liquid will flow from the annular flow channel hole between the driven grinding disc and the grinding shaft into the gap between the driven grinding disc and the active grinding disc. The active grinding disc rotates to perform secondary grinding on the material particles between the driven grinding disc and the active grinding disc; the second liquid after grinding flows out of the driven grinding disc and the outer edge of the active grinding disc, completing the secondary grinding operation of the material particles that do not meet the standards; The secondary grinding operation is performed to a preset time, and the first control valve and the second control valve are controlled to open again, and the second liquid after the secondary grinding is filtered through the filter screen and then discharged from the discharge pipe and flows into a pre-placed storage container; Subsequently, the viscosity and pH value of the second liquid in the storage container are adjusted according to product requirements, and finally the product is packaged to complete the preparation of the water-based protective adhesive.

[0019] The novel water-based coating protective glue and the preparation device and preparation process of the protective glue provided by the embodiment of the present invention have the following beneficial effects: The present invention connects the stirring mechanism and the grinding mechanism through a connecting pipe, thereby reducing the circulation process between different equipments and lowering the complexity of the process; the present invention redesigns the overall structure of the grinding mechanism, the filter screen is assembled in the material temporary storage chamber of the grinding mechanism, and a reciprocating mechanism of the filter screen is added, the reciprocating mechanism is used to intermittently drive the filter screen to move up and down, to avoid the accumulation of material particles and adhesion to the filter screen to cause blockage, saving manpower and improving work efficiency; the present invention designs secondary grinding mechanisms such as active grinding discs and driven grinding discs in the material temporary storage chamber, when the material is blocked, the filter screen can be controlled to move up and down to drive the fluid to flow, and with the help of the one-way valve, part of the fluid can be caused to enter the grinding gap between the active grinding disc and the driven grinding disc during the upward flow process for secondary grinding, and the material particles that do not meet the standards are ground again, and the filter screen is also avoided from being blocked, saving manpower and improving work efficiency. Explanation of the drawings

[0020] Figure 1 It is a structural schematic diagram of a device for preparing a water-based coating protective adhesive in the present invention; Figure 2 It is a structural schematic diagram of the stirring mechanism in the present invention; Figure 3 It is a structural schematic diagram of the connection between the connecting pipe and the grinding mechanism in the present invention; Figure 4 It is a schematic cross-sectional structure diagram of the connection between the connecting pipe and the grinding mechanism in the present invention; Figure 5 A perspective view of the connection between the connecting pipe and the grinding mechanism in the present invention; Figure 6 It is a schematic cross-sectional structure diagram of the first part of the grinding mechanism in the present invention; Figure 7 It is a schematic cross-sectional structure diagram of the second part structure of the grinding mechanism in the present invention; Figure 8 For the present invention Figure 4 A partial enlarged view of B in the middle; Fig. 9 For the present invention Figure 7 A partial enlarged view of C in the middle. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0022] See also Figure 1-Figure 9 .

[0023] In view of the problems mentioned in the above background technology, the embodiment of the present invention provides a novel water-based coating protective glue and a preparation device and a preparation process of the protective glue to solve the above technical problems. The technical solution is as follows: A novel preparation device for water-based paint protective glue; comprising: a stirring mechanism 100 and a grinding mechanism 300; the discharge port of the stirring mechanism 100 is connected to the feed port of the grinding mechanism 300 through a connecting pipe 200; The grinding mechanism 300 includes an upper housing 320, a lower housing 350, a grinding body 330, a grinding shaft 340, an active grinding disc 360, a driven grinding disc 370, a filter screen 380, a one-way valve 500, a discharge pipe 351, a first control valve 600, a grinding motor 400 and a reciprocating mechanism; The upper housing 320 is fixedly connected to the top of the lower housing 350, and the interiors of the lower housing 350 and the upper housing 320 are connected; The grinding shaft 340 is vertically arranged in the upper housing 320 and the lower housing 350; the rear end of the grinding shaft 340 extends to the outside of the lower housing 350, and the main shaft of the grinding motor 400 is fixedly connected to the rear end of the grinding shaft 340; The upper housing 320 is a conical structure, and a conical grinding chamber is disposed inside the upper housing 320; the lower housing 350 is a cylindrical structure, and a cylindrical material temporary storage chamber 355 is disposed inside the lower housing 350; The grinding body 330 is disposed in the conical grinding cavity of the upper housing 320. The grinding body 330 has a conical structure and is coaxially fixedly connected to the grinding shaft 340. The bottom of the grinding body 330 is in contact with the cavity wall of the conical grinding cavity in the circumferential direction. A plurality of flow channels 331 are arranged at intervals on the outer wall of the grinding body 330. The active grinding disc 360, the driven grinding disc 370 and the filter screen 380 are all arranged in the material temporary storage chamber 355 of the lower housing 350; the active grinding disc 360 is an active rotating grinding disc, and the driven grinding disc 370 is fixed on the cavity wall of the material temporary storage chamber 355 and cannot rotate; The active grinding disc 360 is coaxially fixed on the grinding shaft 340, and the outer diameter of the active grinding disc 360 is smaller than the inner diameter of the material temporary storage chamber 355, so that there is a gap between the active grinding disc 360 and the material temporary storage chamber 355; a plurality of first grinding convex ridges 361 arranged in a circular array are arranged on the upper disc surface of the active grinding disc 360 around the grinding shaft 340; The driven grinding disc 370 is located above the active grinding disc 360 and is provided with a gap therebetween. The driven grinding disc 370 is provided coaxially with the grinding shaft 340. There is an annular flow channel hole 372 between the inner edge of the driven grinding disc 370 and the grinding shaft 340. The outer diameter of the driven grinding disc 370 is equal to that of the active grinding disc 360. Since the outer diameter of the driven grinding disc 370 is equal to that of the active grinding disc 360, there is also a gap between the driven grinding disc 370 and the temporary material storage chamber 355. The outer edge of the driven grinding disc 370 is fixed to the wall of the material temporary storage chamber 355 through a plurality of fixed blocks 373 arranged at intervals; a plurality of second grinding convex ridges 371 arranged in a circular array are arranged on the lower disc surface of the driven grinding disc 370 around the grinding axis 340; The filter screen 380 is located below the active grinding disc 360 and is arranged close to the bottom wall of the material temporary storage chamber 355; the filter screen 380 is annular in structure, the inner ring of the filter screen 380 is passed through the grinding shaft 340, and the aperture value of the inner ring of the filter screen 380 is greater than the shaft diameter value of the grinding shaft 340; the aperture value of the outer ring of the filter screen 380 is less than the inner diameter value of the material temporary storage chamber 355; The filter screen 380 is provided with a plurality of filter holes; wherein, no filter holes are provided on a section of the outer ring of the filter screen 380 near the outer edge 381 of the filter screen 380; a plurality of one-way valves 500 are arranged in a circular array on the outer edge 381 of the filter screen 380; the liquid flow direction in the one-way valve 500 is to allow the liquid to pass from bottom to top; The reciprocating mechanism is disposed on the lower housing 350, and is used to drive the filter screen 380 to move up and down along the axial direction of the grinding shaft 340; The discharge pipe 351 is fixedly connected to the lower housing 350 , and is arranged near the bottom of the lower housing 350 . The interface between the discharge pipe 351 and the lower housing 350 is below the filter 380 . The first control valve 600 is arranged on the discharge pipe 351 .

[0024] It should be noted that a rack is also provided in the present invention, and the rack is used to assemble and fix the whole set of equipment. The structural form of the rack is not specifically limited and is specifically provided according to the space requirements of a specific factory building.

[0025] In this embodiment, the reciprocating mechanism includes two groups, and the two groups of reciprocating mechanisms are respectively arranged on both sides of the filter screen 380; the two groups of reciprocating mechanisms work synchronously to drive the filter screen 380 to move up and down; Each reciprocating mechanism includes a crank rod 391, a long connecting rod 392, an articulated seat 393 and a reciprocating motor 394; The reciprocating motor 394 is fixed on the lower housing 350, and the main shaft of the reciprocating motor 394 passes through the housing of the lower housing 350; The crank rod 391 is fixedly connected to the main shaft of the reciprocating motor 394; the hinge seat 393 is fixed to the filter screen 380; The upper end of the long connecting rod 392 is hinged to the end of the crank rod 391 , and the lower end of the long connecting rod 392 is hinged to the hinge seat 393 .

[0026] It should be noted that there is no rotational interference when the reciprocating motor 394 drives the crank rod 391 to rotate; the length of the crank rod 391 is set according to the gap size between the active grinding disc 360, the driven grinding disc 370 and the material storage chamber 355, and the cavity diameter value of the material storage chamber 355, and the setting standard is not to interfere with the rotation operation of the crank rod 391.

[0027] In this embodiment, a guide groove is provided on the top surface of the driven grinding disc 370, and the guide groove is in the shape of an inverted frustum of a cone; the groove wall height value of the outer edge 370-1 of the guide groove is greater than the groove wall height value of the inner edge 370-2 of the guide groove; a guide groove is provided on the top surface of the dynamic grinding disc 370 to facilitate the liquid to flow along the groove wall of the guide groove to the annular flow channel hole 372.

[0028] In this embodiment, a cylindrical connecting body 321 is fixedly provided at a circumferential position at the bottom of the upper housing 320, and an annular connecting cavity 322 is provided on the cylindrical connecting body 321 along its axial direction, and an internal thread 323 is provided in the annular connecting cavity 322; An external thread 353 is provided on the outer side of the lower shell 350; the lower shell 350 is threadedly connected to the internal thread 323 of the columnar connector 321 through the external thread 353 on the outer side; an annular pressure plate 354 is provided on the lower shell 350 below the external thread 353, and after the lower shell 350 and the upper shell 320 are threadedly connected, the annular pressure plate 354 is pressed against the bottom surface of the columnar connector 321; preferably, a sealing gasket is provided between the annular pressure plate 354 and the bottom surface of the columnar connector 321.

[0029] The threaded connection between the upper housing 320 and the lower housing 350 facilitates the disassembly and assembly of the upper housing 320 and the lower housing 350 when the equipment is repaired at a later stage.

[0030] In this embodiment, the bottom shell of the lower housing 350 is an inclined structure; the setting of the inclined structure facilitates the liquid to flow out of the discharge pipe 351 smoothly under the action of gravity; a flow sensor is provided on the discharge pipe 351 to facilitate flow monitoring of the liquid flowing out of the discharge pipe 351.

[0031] In this embodiment, a material guide is provided on the top of the grinding body 330 ; the material guide includes a material guide shaft 310 fixed on the top of the grinding body 330 , and a material guide thread 311 fixed on the material guide shaft 310 ; the material guide shaft 310 extends into the connecting pipe 200 .

[0032] In this embodiment, the stirring mechanism 100 includes a tank body 110, a stirring shaft 120 disposed in the tank body 110, a stirring blade 130 fixed on the stirring shaft 120, and a stirring motor 140 fixed on the top of the tank body 110 and drivingly connected to the stirring shaft 120; A feed pipe 111 is provided at the bottom of the tank body 110, and a second control valve is provided on the feed pipe 111; wherein the structure of the second control valve is not shown in the drawings; The connecting pipe 200 is fixedly connected to the bottom of the feeding pipe 111 ; the connecting pipe 200 includes an upper pipe 210 and a lower pipe 220 connected up and down; the upper pipe 210 is conical, and the lower pipe 220 is cylindrical; the lower pipe 220 is connected to the feed port of the grinding mechanism 300 .

[0033] A working method of the above-mentioned preparation device of the water-based coating protective glue comprises the following steps: Adding a pure water solvent into the tank 110, and sequentially adding a filler, magnesium oxide, and additives including sodium silicate, a viscosity reducer, an ammonium salt stabilizer, an industrial lithium salt, and white carbon black into the pure water solvent to prepare a first liquid; The stirring motor 140 drives the stirring shaft 120 to drive the stirring blade 130 to disperse and stir the first liquid; after the first liquid is evenly dispersed, the second control valve is controlled to open, so that the first liquid in the tank body 110 flows into the connecting pipe 200; The grinding motor 400 drives the grinding shaft 340 to rotate; the rotation of the grinding shaft 340 will synchronously drive the material guide shaft 310, the grinding body 330 and the active grinding disc 360 to rotate; The material guide shaft 310 rotates to drive the material guide thread 311 on the material guide shaft 310 to gradually guide the first liquid in the connecting pipe 200 into the upper housing 320; The grinding body 330 rotates and rubs against the cavity wall of the conical grinding cavity in the upper housing 320 to grind the material particles in the material; the first liquid after grinding flows from the flow channel 331 on the outer wall of the grinding body 330 to the material temporary storage cavity 355 in the lower housing 350 to form the second liquid; The first control valve 600 is controlled to open, and the second liquid in the temporary material storage chamber 355 is filtered by the filter screen 380 and then discharged from the discharge pipe 351 and flows into the pre-placed storage container; According to the real-time flow rate detected by the flow sensor on the discharge pipe 351, when the real-time flow rate value detected during the grinding operation is less than the preset flow rate value; at this time, the filter screen 380 is blocked, and the first control valve 600 and the second control valve are controlled to be temporarily closed; The reciprocating mechanism is controlled to work, and the reciprocating motor 394 drives the crank rod 391 to rotate and then drives the long connecting rod 392 to drive the filter screen 380 to move upward along the axis of the grinding shaft 340. The up and down movement of the filter screen 380 will shake and remove the material particles blocked on the filter screen 380, so that the filter screen 380 can resume normal filtering operation; At the same time, during the downward movement of the filter screen 380, since there are no filter holes on a section of the outer ring of the outer edge 381 of the filter screen 380, the second liquid at this position cannot flow through the filter holes during the downward pressure of the filter screen 380, which will generate a certain upward pressure and prompt the one-way valve 500 to open, and the second liquid below the filter screen 380 will accelerate to flow upward through the one-way valve 500; The second liquid flowing upwards will sequentially pass through the active grinding disc 360 and the gap between the driven grinding disc 370 and the material temporary storage chamber 355, and finally fall into the guide groove of the driven grinding disc 370. During the flow of the second liquid, part of the second liquid will flow from the annular flow channel hole 372 between the driven grinding disc 370 and the grinding shaft 340 to the gap between the driven grinding disc 370 and the active grinding disc 360. The active grinding disc 360 rotates to perform secondary grinding on the material particles between the driven grinding disc 370 and the active grinding disc 360; the second liquid after grinding flows out of the outer edges of the driven grinding disc 370 and the active grinding disc 360, completing the secondary grinding operation of the material particles that do not meet the standards; The first control valve 600 and the second control valve are controlled to open again, and the second liquid after the second grinding is filtered through the filter screen 380 and then discharged from the discharge pipe 351 and flows into the pre-placed storage container; Subsequently, the viscosity and pH value of the second liquid in the storage container are adjusted according to product requirements, and finally the product is packaged to complete the preparation of the water-based protective adhesive.

[0034] It should be noted that in the above operation, as long as the filter 380 is in an active state, it can be prevented that material particles gather and adhere to the filter 380 to cause blockage; and the up and down movement of the filter 380 will accelerate the flow speed of the second liquid in the material storage chamber 355, thereby prompting most of the second liquid to have the opportunity to pass through the annular flow channel hole 372 on the driven grinding disk 370 during the flow process, and enter the gap between the active grinding disk 360 and the driven grinding disk 370 for secondary grinding, and grind the material particles that do not meet the standards to qualified; at the same time, in the process of the filter 380 moving up and down in the material storage chamber 355, because the filter 380 has the function of screening material particles, the material particles that do not meet the specification size will be distributed and retained above the filter 380.

[0035] The device embodiments described above are merely illustrative, wherein the units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, and may be located in one place or distributed over multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0036] In the present invention, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal connection of the components or the interaction relationship between the components. Unless otherwise clearly defined, for ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0037] It is understandable that those skilled in the art can make equivalent substitutions or changes based on the technical solution and concept of the present invention, and all these changes or substitutions should fall within the protection scope of the claims attached to the present invention.

Claims

1. A new type of water-based paint protective glue, characterized in that: include: Sodium silicate, magnesium oxide, viscosity reducer, ammonium salt stabilizer, industrial lithium salt, white carbon black and water.

2. The novel water-based coating protective adhesive according to claim 1 is characterized in that: Calculated by mass, including: 15-20 parts of sodium silicate, 10-15 parts of magnesium oxide, 5-10 parts of viscosity reducer, 5-10 parts of ammonium salt stabilizer, 5-8 parts of industrial lithium salt, 3-5 parts of white carbon black and 40-50 parts of water.

3. A novel preparation device for water-based paint protective glue; characterized in that: include: Mixing mechanism and grinding mechanism; The material outlet of the stirring mechanism is connected to the material inlet of the grinding mechanism through a connecting pipe; The grinding mechanism includes an upper housing, a lower housing, a grinding body, a grinding shaft, an active grinding disc, a driven grinding disc, a filter screen, a one-way valve, a discharge pipe, a first control valve, a grinding motor and a reciprocating mechanism; The upper housing is fixedly connected to the top of the lower housing, and the interiors of the lower housing and the upper housing are in a connected state; The grinding shaft is vertically arranged in the upper casing and the lower casing; The tail of the grinding shaft extends to the outside of the lower housing, and the main shaft of the grinding motor is fixedly connected to the tail of the grinding shaft; The upper casing is of a conical structure, and a conical grinding chamber is arranged inside the upper casing; The lower casing is cylindrical in structure, and a cylindrical material temporary storage cavity is arranged inside the lower casing; The grinding body is arranged in the conical grinding cavity of the upper housing, the grinding body has a conical structure and is coaxially fixedly connected to the grinding shaft; the bottom of the grinding body is in contact with the cavity wall of the conical grinding cavity in the circumferential direction, and a plurality of flow channels are arranged on the outer wall of the grinding body at intervals; The active grinding disc, the driven grinding disc and the filter screen are all arranged in the material temporary storage cavity of the lower casing; The active grinding disc is coaxially fixed on the grinding shaft, and the outer diameter of the active grinding disc is smaller than the inner diameter of the material temporary storage chamber; a plurality of first grinding convex ridges arranged in a circular array are arranged on the upper disc surface of the active grinding disc around the grinding shaft; The driven grinding disc is located above the active grinding disc and is provided with a gap therebetween. The driven grinding disc is coaxially arranged with the grinding shaft. There is an annular flow channel hole between the inner edge of the driven grinding disc and the grinding shaft. The outer diameter of the driven grinding disc is equal to the outer diameter of the active grinding disc. The outer edge of the driven grinding disc is fixed to the wall of the temporary material storage chamber through a plurality of fixed blocks arranged at intervals. A plurality of second grinding convex ridges arranged in a circular array are provided on the lower disc surface of the driven grinding disc around the grinding shaft. The filter screen is located below the active grinding disc and close to the bottom wall of the material storage chamber; the filter screen is in a circular ring structure, the inner ring of the filter screen is passed through the grinding shaft, the inner ring aperture value of the filter screen is larger than the shaft diameter value of the grinding shaft; the outer ring aperture value of the filter screen is smaller than the inner diameter value of the material storage chamber; The filter screen is provided with a plurality of filter holes; wherein, no filter holes are provided on an outer ring of the filter screen near the outer edge of the filter screen; a plurality of one-way valves are arranged in a circular array on the outer edge of the filter screen; The reciprocating mechanism is arranged on the lower casing, and is used to drive the filter screen to move up and down along the axial direction of the grinding shaft; The discharge pipe is fixedly connected to the lower casing, the discharge pipe is arranged near the bottom of the lower casing, and the interface position of the discharge pipe and the lower casing is below the filter screen; the first control valve is arranged on the discharge pipe.

4. The preparation device of water-based paint protective glue according to claim 3, characterized in that: The reciprocating mechanism includes two groups, and the two groups of reciprocating mechanisms are respectively arranged on both sides of the filter screen; Each reciprocating mechanism includes a crank rod, a long connecting rod, an articulated seat and a reciprocating motor; The reciprocating motor is fixed on the lower casing, and the main shaft of the reciprocating motor passes through the casing of the lower casing; The crank rod is fixedly connected to the main shaft of the reciprocating motor; the hinged seat is fixed to the filter screen; The upper end of the long connecting rod is hinged to the end of the crank rod, and the lower end of the long connecting rod is hinged to the hinge seat.

5. The preparation device of water-based paint protective glue according to claim 3, characterized in that: A guide groove is arranged on the top surface of the driven grinding disc, and the guide groove is in the shape of an inverted truncated cone; the height value of the groove wall on the outer side of the guide groove is greater than the height value of the groove wall on the inner side of the guide groove.

6. The preparation device of water-based paint protective glue according to claim 3, characterized in that: A cylindrical connecting body is fixedly arranged at a circumferential position at the bottom of the upper housing, an annular connecting cavity is arranged on the cylindrical connecting body along its axial direction, and an internal thread is arranged in the annular connecting cavity; An external thread is arranged on the outer side of the lower casing; the lower casing is threadedly connected to the internal thread of the cylindrical connector through the external thread on the outer side; an annular pressure plate is arranged on the lower casing below the external thread, and after the lower casing is threadedly connected to the upper casing, the annular pressure plate is pressed tightly against the bottom surface of the cylindrical connector.

7. The preparation device of water-based paint protective glue according to claim 3, characterized in that: The bottom shell of the lower casing is in an inclined structure; a flow sensor is arranged on the discharge pipe.

8. The preparation device of water-based paint protective glue according to claim 3, characterized in that: A material guide piece is arranged on the top of the grinding body; the material guide piece comprises a material guide shaft fixed on the top of the grinding body, and a material guide thread fixed on the material guide shaft; the material guide shaft extends into the connecting pipe.

9. The preparation device of water-based paint protective glue according to claim 3, characterized in that: The stirring mechanism comprises a tank body, a stirring shaft arranged in the tank body, a stirring blade fixed on the stirring shaft, and a stirring motor fixed on the top of the tank body and drivingly connected to the stirring shaft; A feed pipe is provided at the bottom of the tank body, and a second control valve is provided on the feed pipe; The connecting pipe is fixedly connected to the bottom of the feeding pipe; the connecting pipe comprises an upper pipe and a lower pipe connected up and down; the upper pipe is conical, and the lower pipe is cylindrical; the lower pipe is connected to the feeding port of the grinding mechanism.

10. A working method of the preparation device of the water-based coating protective adhesive as claimed in claim 9, characterized in that: The following steps are involved: Adding a pure water solvent into the tank, and sequentially adding a filler, magnesium oxide, and additives including sodium silicate, a viscosity reducer, an ammonium salt stabilizer, an industrial lithium salt, and white carbon black into the pure water solvent to prepare a first liquid; The stirring motor drives the stirring shaft to drive the stirring blade to disperse and stir the first liquid; after the first liquid is evenly dispersed, the second control valve is controlled to open, so that the first liquid in the tank body flows into the connecting pipe; The grinding motor drives the grinding shaft to rotate; the rotation of the grinding shaft will synchronously drive the guide shaft, the grinding body and the active grinding disc to rotate; The material guide shaft rotates to drive the material guide thread on the material guide shaft to gradually guide the first liquid in the connecting pipe into the upper housing; The grinding body rotates and rubs against the wall of the conical grinding chamber in the upper housing to grind the material particles in the material; the ground first liquid flows from the flow channel on the outer wall of the grinding body to the material temporary storage chamber in the lower housing to form the second liquid; The first control valve is controlled to open, and the second liquid in the temporary material storage chamber is filtered through the filter screen and then discharged from the discharge pipe and flows into the pre-placed storage container; According to the real-time flow rate detected by the flow sensor on the discharge pipe, when the real-time flow rate value detected during the grinding operation is less than the preset flow rate value; at this time, the filter screen is blocked, and the first control valve and the second control valve are controlled to be temporarily closed; Control the reciprocating mechanism to work. The reciprocating motor drives the crank rod to rotate and then drives the long connecting rod to drive the filter screen to move upward along the grinding axis. The up and down movement of the filter screen will shake and remove the material particles blocked on the filter screen, so that the filter screen can resume normal filtering operation. At the same time, during the downward movement of the filter screen, since there are no filter holes on a section of the outer ring of the outer edge of the filter screen, the second liquid at this position cannot flow through the filter holes during the downward pressure of the filter screen, which will generate a certain upward pressure and prompt the one-way valve to open, and the second liquid under the filter screen will accelerate to flow upward through the one-way valve; The second liquid flowing upwards will sequentially pass through the active grinding disc and the gap between the driven grinding disc and the material temporary storage chamber, and finally fall into the guide groove of the driven grinding disc. During the flow of the second liquid, part of the second liquid will flow from the annular flow channel hole between the driven grinding disc and the grinding shaft into the gap between the driven grinding disc and the active grinding disc. The active grinding disc rotates to perform secondary grinding on the material particles between the driven grinding disc and the active grinding disc; The second liquid after grinding flows out from the outer edges of the driven grinding disc and the active grinding disc, completing the secondary grinding operation of the material particles that do not meet the standards; The secondary grinding operation is performed to a preset time, and the first control valve and the second control valve are controlled to open again, and the second liquid after the secondary grinding is filtered through the filter screen and then discharged from the discharge pipe and flows into a pre-placed storage container; Subsequently, the viscosity and pH value of the second liquid in the storage container are adjusted according to product requirements, and finally the product is packaged to complete the preparation of the water-based protective adhesive.

Images