Solvent-free fireproof coating mixing equipment and mixing method thereof

Abstract

The invention relates to the technical field of fireproof coating production, in particular to solvent-free fireproof coating mixing equipment and a mixing method thereof.The solvent-free fireproof coating mixing equipment comprises a stirring barrel and a stirring assembly rotationally connected into the stirring barrel, and an extrusion assembly used for extruding mixed raw materials in the stirring barrel is arranged in the stirring barrel; the extrusion assembly comprises a circle of extrusion net arranged along the inner wall of the stirring barrel and two extrusion rollers moving in the circumferential direction of the stirring barrel, the two extrusion rollers are arranged outside the stirring barrel, meanwhile, the extrusion net extends out of the stirring barrel to be wound on the surfaces of the extrusion rollers, and a fixing rod used for fixing the extrusion net to the inner wall of the stirring barrel is arranged in the stirring barrel. The fixed rod and the two extrusion rollers are arranged on two opposite sides of the inner wall of the stirring barrel. The method has the effect of reducing bubbles in the raw materials.

Description

Technical Field

[0001] The present application relates to the technical field of fire retardant coating production, and in particular to solvent-free fire retardant coating mixing equipment and a mixing method thereof. Background Art

[0002] Solvent-free fire-retardant coatings are a special type of coating characterized by not emitting volatile organic compounds (VOCs) into the atmosphere during the curing process. Primarily composed of materials such as epoxy resin, polyurethane, and polyurea, these coatings contain no solvents, making them highly environmentally and safely resistant. However, during production, multiple raw materials must be added to a mixing drum and thoroughly stirred.

[0003] For example, Chinese patent publication CN114870681B discloses a paint mixing device comprising a paint canister, a water pipe, a power mechanism, a feeding mechanism, a stirring mechanism, and a guide mechanism. The water pipe is fixedly mounted on the paint canister, and the stirring mechanism comprises a stirring rod and a central tube. The power mechanism is mounted on the paint canister and is used to drive the feeding mechanism and the guide mechanism to rotate. The power mechanism, feeding mechanism, stirring mechanism, and guide mechanism achieve automatic mixing of the paint. The stirring mechanism not only stirs the paint and accelerates mixing, but also cleans the inner wall of the paint canister.

[0004] In the above-mentioned related technologies, although the coating is fully mixed by the stirring structure, a part of the air will enter the interior of the raw material while adding the material. In addition, the air will be brought into the interior of the raw material while stirring. Then, a part of the bubbles will remain in the interior of the raw material after stirring, which will eventually cause the quality of the coating to deteriorate. At the same time, in the above-mentioned related technologies, although the inner wall of the mixing drum can be mixed, since the stirring rod and the center tube are arranged vertically, it is very inconvenient to clean the residual coating on the stirring rod. Summary of the Invention

[0005] The present application provides solvent-free fire retardant coating mixing equipment and a mixing method thereof, aiming to solve the problem of bubbles existing inside the raw materials in the related art.

[0006] First aspect: The solvent-free fire retardant coating mixing equipment provided in this application adopts the following technical solutions: The solvent-free fire-retardant coating mixing equipment includes a mixing barrel and a mixing assembly rotatably connected to the mixing barrel, wherein the mixing barrel is provided with an extrusion assembly for extruding the mixed raw materials in the mixing barrel, and the extrusion assembly includes an extrusion net arranged along the inner wall of the mixing barrel and two extrusion rollers moving circumferentially along the mixing barrel, and the two extrusion rollers are arranged outside the mixing barrel, and the extrusion net extends out of the mixing barrel and is wrapped around the surface of the extrusion rollers, and the mixing barrel is provided with a fixing rod for fixing the extrusion net to the inner wall of the mixing barrel, and the fixing rod and the two extrusion rollers are arranged on opposite sides of the inner wall of the mixing barrel, and the mixing barrel is provided with a driving assembly for driving the two extrusion rollers to move in opposite directions, and when the two extrusion rollers move away from each other, the extrusion net moves toward the axis of the mixing barrel to extrude the raw materials in the mixing barrel.

[0007] By adopting the above technical solution, after the raw materials in the mixing barrel are mixed, the position of the stirring assembly is adjusted, and then the two extrusion rollers are driven by the driving assembly to move in a direction away from each other. At this time, since the corresponding positions of the extrusion net and the extrusion rollers are fixed to the inner wall of the mixing barrel through a fixing rod, when the two extrusion rollers move away from each other, the extrusion nets on both sides of the stirring assembly will be pulled closer to each other. During the movement of the extrusion nets, the mixed raw materials will be squeezed to discharge the bubbles in the raw materials, thereby reducing the occurrence of bubbles in the raw materials.

[0008] Optionally, an exhaust plate is slidably connected to the mixing barrel, and the side surface of the exhaust plate abuts against the inner wall of the mixing barrel. The mixing barrel is provided with an exhaust cylinder for driving the exhaust plate to move.

[0009] By adopting the above technical solution, after the two extrusion rollers move away from each other, the vacuum cylinder drives the vacuum plate to move away from the bottom wall of the mixing barrel, and then a negative pressure is generated in the mixing barrel. At this time, the bubbles inside the raw material will move toward the vacuum plate under the action of pressure, and then further reduce the bubbles inside the raw material, thereby improving the quality of the mixed coating.

[0010] Optionally, the stirring assembly includes a stirring shaft rotatably connected to the stirring barrel and a stirring rod rotatably connected to multiple stirring shafts, the stirring shaft is provided with a mounting groove, and the stirring shaft is provided with a pushing assembly for pushing the stirring rod into the mounting groove.

[0011] By adopting the above technical solution, after the mixed raw materials are discharged from the mixing barrel, the pushing component pushes the stirring rod to rotate into the installation groove, and the extrusion net abuts against the inner wall of the mixing barrel, and then the vacuum cylinder drives the vacuum plate to move toward the bottom wall of the mixing barrel. At this time, the raw materials on the surface of the extrusion net in the mixing barrel can be cleaned, and the raw materials on the stirring rod can be cleaned at the same time. In addition, while the pushing component pushes the stirring rod to rotate, the inner wall of the installation groove can scrape off the material on the surface of the stirring rod, making it more convenient to clean the residual material on the inner wall of the mixing barrel.

[0012] Optionally, an air outlet pipe is provided on the exhaust plate, and a control valve for controlling the opening or closing of the air outlet pipe is provided on the air outlet pipe; when cleaning the residual raw materials in the mixing barrel, the air outlet pipe is in an open state; when negative pressure is generated in the mixing barrel, the air outlet pipe is in a closed state.

[0013] Optionally, a rotating shaft is fixedly mounted on the stirring rod, and the rotating shaft is rotatably connected to the stirring shaft; the pushing assembly includes a connecting rod fixed on the rotating shaft, a first pushing rod slidably connected to the stirring shaft, and a second pushing rod fixed on the first pushing rod, the end face of the first pushing rod abuts against the second pushing rod, and a resetting member is provided on the rotating shaft for driving the rotating shaft to reset.

[0014] Optionally, an extension rod is slidably connected to the stirring rod, and a control member for pushing the extension rod to extend out of the stirring rod and an adjusting member for driving the extension rod to move into the stirring rod are provided on the stirring shaft.

[0015] By adopting the above technical solution, when the stirring rod rotates into the installation groove, the extension rod moves into the stirring rod, which achieves the purpose of easy retraction. At the same time, due to the setting of the extension rod, the length of the stirring rod can be reduced, and then it is convenient to set multiple stirring rods along the length direction of the stirring shaft.

[0016] Optionally, the adjusting member is configured as an adjusting spring for pulling the extension rod to move into the stirring rod, and the control member includes a control block arranged on the stirring shaft, the control block is provided with an arc surface, and the highest point is provided on the arc surface, and the adjusting spring is used to make one end of the extension rod abut against the arc surface.

[0017] By adopting the above technical solution, when the stirring rod moves toward the installation groove, the end face of the extension rod gradually moves away from the highest point of the arc surface, and then under the action of the adjusting spring, the extension rod is pulled to move into the stirring rod. When the stirring rod moves away from the installation groove, the end face of the extension rod gradually abuts against the highest point, and then pushes the extension rod out of the stirring rod, so that the adjusting spring is in a stretched state.

[0018] Optionally, a through hole is provided on the stirring rod, and the through hole passes through the stirring rod and is connected to the mounting groove.

[0019] By adopting the above technical solution, under the action of the through hole, when the stirring rod moves toward the installation groove, it will push the raw materials in the installation groove to flow out of the through hole, thereby making it easier to clean the raw materials in the installation groove.

[0020] Optionally, the driving assembly includes a driving roller rotatably connected to the outer wall of the mixing barrel and a driving belt wrapped around the two driving rollers. The driving belt close to the mixing barrel is slidingly connected to the outer surface of the mixing barrel, and the two squeezing rollers are fixedly installed on the driving belt. When the driving belt moves, it drives the two squeezing rollers to move in opposite directions.

[0021] Second aspect: The solvent-free fire retardant coating mixing method comprises the following steps: S1: The driving belt drives the two squeezing rollers to move away from each other; S2: The vacuum cylinder drives the vacuum plate to move away from the bottom wall of the mixing tank; S3: After the raw materials are discharged, the stirring rod is driven to rotate into the installation groove by pushing the component; S4: The vacuum cylinder drives the vacuum plate to move toward the bottom wall of the mixing barrel.

[0022] By adopting the above technical solution, after the mixing is completed, the position of the stirring rod is adjusted, and then the stirring rod and the fixed rod are aligned. At this time, the two extrusion rollers are driven away from each other by the driving component, so that the extrusion nets on both sides of the fixed rod move toward the direction close to the stirring shaft, and then the raw materials are pushed to move, while squeezing out the bubbles in the raw materials, thereby achieving the purpose of reducing bubbles in the coating.

[0023] In summary, this application includes at least one of the following beneficial technical effects: 1. The driving assembly drives the two extrusion rollers away from each other, so that the extrusion nets on both sides of the fixed rod move toward the direction close to the stirring shaft, and then push the raw materials to move, while squeezing the raw materials in the mixing barrel to discharge the bubbles in the raw materials, thereby achieving the purpose of reducing bubbles in the coating.

[0024] 2. The pushing component pushes the stirring rod to rotate into the installation groove, and the extrusion net abuts against the inner wall of the mixing barrel. Then the vacuum cylinder drives the vacuum plate to move toward the bottom wall of the mixing barrel. At this time, the raw materials on the surface of the extrusion net in the mixing barrel can be cleaned. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application.

[0026] Figure 2 It is a schematic diagram of the drive component structure of an embodiment of the present application.

[0027] Figure 3 It is a schematic diagram of the structure of the stirring component of an embodiment of the present application.

[0028] Figure 4 It is a cross-sectional view of the mixing barrel of an embodiment of the present application.

[0029] Figure 5This is a cross-sectional view of the stirring rod and stirring shaft of an embodiment of the present application.

[0030] Figure 6 It is a schematic diagram of the structure of the pushing component of an embodiment of the present application.

[0031] Figure markings: 01, mixing barrel; 02, mounting frame; 03, feed pipe; 04, discharge pipe; 05, exhaust plate; 06, exhaust cylinder; 1, stirring assembly; 11, stirring shaft; 12, stirring rod; 121, mounting groove; 122, through hole; 13, rotating shaft; 14, reset part; 15, extension rod; 2, extrusion assembly; 21, extrusion net; 22, extrusion roller; 23, fixing rod; 3, driving assembly; 31, driving roller; 32, driving belt; 321, inner ring; 322, outer ring; 4, pushing assembly; 41, connecting rod; 42, first pushing rod; 43, second pushing rod; 5, adjusting part; 51, adjusting spring; 6, control part; 61, control block; 611, arc surface; 612, highest point. DETAILED DESCRIPTION

[0032] The following combination Figures 1-6 This application is described in further detail.

[0033] First aspect: The embodiment of the present application discloses a solvent-free fire retardant coating mixing device. Figures 1 to 6 The solvent-free fire-retardant coating mixing equipment includes a mixing barrel 01, a stirring component 1 and an extrusion component 2 arranged in the mixing barrel 01, and a driving component 3 for driving the extrusion component 2 to work. The stirring component 1 is used to stir and mix the various raw materials in the mixing barrel 01, and the extrusion component 2 is used to extrude the raw materials to discharge the bubbles in the raw materials, thereby reducing the bubbles in the raw materials. At the same time, an exhaust plate 05 is slidably connected in the mixing barrel 01. When the exhaust plate 05 moves away from the bottom wall of the mixing barrel 01, a negative pressure can be generated in the mixing barrel 01, which is further conducive to the discharge of bubbles inside the raw materials, thereby improving the production quality of the raw materials.

[0034] Reference Figure 1 A mounting frame 02 is provided on the mixing barrel 01. The mounting frame 02 is set on the ground to support the mixing barrel 01. At the same time, a feed pipe 03 and a discharge pipe 04 are provided on the mixing barrel 01. A valve is provided on the discharge pipe 04 to control the connection or closure of the discharge pipe 04 through the valve.

[0035] Reference Figures 1 to 4The extrusion assembly 2 includes an extrusion net 21 arranged along the inner wall of the mixing barrel 01 and two extrusion rollers 22 arranged on the outside of the mixing barrel 01. The extrusion net 21 is arranged in an annular structure, and a fixing rod 23 is provided on the inner wall of the mixing barrel 01. The fixing rod 23 is used to fix the extrusion net 21 on the inner wall of the mixing barrel 01, and the fixing rod 23 divides the extrusion net 21 into two parts. The two parts of the extrusion net 21 are respectively located on both sides of the mixing assembly 1. The extrusion net 21 extends out of the mixing barrel 01 and abuts against the extrusion rollers 22. The driving assembly 3 is used to drive the extrusion rollers 22 to move circumferentially along the mixing barrel 01. When the driving assembly 3 causes the two extrusion rollers 22 to move in a direction away from each other, the two parts of the extrusion net 21 will approach the direction of the mixing assembly 1. When the two parts of the extrusion net 21 approach each other, they will push the raw materials in the mixing barrel 01, and then push the bubbles in the raw materials to break, and then facilitate the discharge of the internal bubbles. In addition, when the two parts of the extrusion net 21 are close to each other, the agglomerated materials will be pushed to disperse. In this embodiment, the mesh size of the extrusion net 21 can be set according to actual needs.

[0036] Reference Figures 1 to 4 A ring-shaped electromagnet (not shown in the figure) is provided on the inner wall of the mixing barrel 01, and an iron belt is provided on the extrusion net 21. When the extrusion rollers 22 move away from each other, the electromagnet is powered off, and the iron belt cannot be adsorbed at this time, thereby facilitating the two parts of the extrusion net 21 to approach each other. When the two extrusion rollers 22 approach each other, the stirring assembly 1 rotates, which will push the two parts of the extrusion net 21 away from each other, and then the electromagnet is energized to fix the extrusion net 21 on the inner wall of the mixing barrel 01, making it more convenient to use.

[0037] Reference Figures 1 to 4 The driving assembly 3 includes a driving roller 31 rotatably connected to the mixing barrel 01 and a driving belt 32 arranged along the circumference of the mixing barrel 01. The driving belt 32 is wound around the driving roller 31. At the same time, a driving motor is provided on the mixing barrel 01. The output shaft of the driving motor is connected to one of the driving rollers 31. The driving motor rotates to drive the driving roller 31, and then the driving roller 31 drives the driving belt 32 to move. Under the action of the two driving rollers 31, the driving belt 32 is divided into an inner ring 321 and an outer ring 322. One squeezing roller 22 is fixed on the inner ring 321, and the other squeezing roller 22 is fixed on the outer ring 322. The pressure roller 22 is fixed on the outer ring 322, and then when the driving belt 32 moves, the two squeezing rollers 22 can move in opposite directions; at the same time, a T-shaped limiting belt is provided on the driving belt 32, and a T-shaped slot is provided on the mixing barrel 01, and openings are provided at both ends of the T-shaped slot, so that the T-shaped limiting belt on the driving belt 32 can be moved into the T-shaped limiting slot. At this time, the driving belt 32 on the inner ring 321 is slidably connected to the inner wall of the mixing barrel 01, and then when the driving belt 32 moves, it can always move along the circumference of the mixing barrel 01, and then it is convenient to drive the two squeezing rollers 22 to move.

[0038] Reference Figures 1 to 4 , a suction cylinder 06 for driving the suction plate 05 to move is provided on the mounting frame 02, the cylinder body of the suction cylinder 06 is fixed on the mounting frame 02, and the piston rod is fixed on the suction plate 05. After the two squeezing rollers 22 move away from each other, the suction plate 05 is driven by the suction cylinder 06 to move in the direction away from the bottom wall of the mixing barrel 01, and then a negative pressure is generated in the mixing barrel 01. At this time, the bubbles inside the raw materials will move towards the direction close to the suction plate 05 under the action of pressure, and then the bubbles inside the raw materials will be further reduced, thereby improving the quality of the mixed coating; at the same time, an air outlet pipe is provided on the suction plate 05, and solenoid valves are installed on the air outlet pipe and the feed pipe 03. The solenoid valve is used to control the opening or closing of the air outlet pipe and the feed pipe 03. When stirring and mixing, the air outlet pipe and the feed pipe 03 are in an open state, and when vacuuming, the air outlet pipe and the feed pipe 03 are in a closed state. In this embodiment, the solenoid valve can be connected to the controller, and the solenoid valve is driven to work by the controller.

[0039] Reference Figures 3 to 6 The stirring assembly 1 includes a stirring shaft 11 rotatably connected to the stirring barrel 01 and a plurality of stirring rods 12 rotatably connected to the stirring shaft 11. A stirring motor is provided on the mounting frame 02. The output shaft of the stirring motor is fixed on the stirring shaft 11. The stirring motor rotates to drive the stirring shaft 11 and the stirring rod 12 to rotate, thereby facilitating the mixing of the raw materials in the stirring barrel 01. At the same time, a rotating shaft 13 is fixedly installed on the stirring rod 12, and the rotating shaft 13 is rotatably connected to the stirring shaft 11. A reset member 14 is provided on the rotating shaft 13. The reset member 14 is configured as a torsion spring. One end of the torsion spring is fixed to the rotating shaft 13, and the other end is fixed to the stirring shaft 11. Under the action of the torsion spring, the stirring rod 12 is in a horizontal state and is arranged perpendicular to the stirring shaft 11.

[0040] Reference Figures 3 to 6A pushing component 4 is provided on the stirring shaft 11, and a mounting groove 121 is opened on the stirring shaft 11. The pushing component 4 is used to push the stirring rod 12 to rotate into the mounting groove 121, and then facilitate the movement of the exhaust plate 05. On the other hand, when the exhaust plate 05 moves, it is convenient to clean the raw materials on the stirring rod 12. In this embodiment, the exhaust plate 05 is sleeved on the stirring shaft 11 and can slide along the length direction of the stirring shaft 11. As the stirring rod 12 rotates toward the mounting groove 121, the torsion spring is energized. Then, when the push assembly 4 moves in the opposite direction, the torsion spring drives the stirring rod 12 to reset. In addition, a through hole 122 is provided on the stirring rod 12. The through hole 122 passes through the stirring rod 12 and is connected to the mounting groove 121. Under the action of the through hole 122, when the stirring rod 12 moves toward the mounting groove 121, the raw materials in the mounting groove 121 are pushed out of the through hole 122, thereby facilitating the cleaning of the raw materials in the mounting groove 121. At the same time, when the stirring rod 12 rotates, the inner wall of the mounting groove 121 also cleans the material on the surface of the stirring rod 12. When the stirring rod 12 rotates into the mounting groove 121, the surface of the stirring rod 12 is flush with the surface of the stirring shaft 11. In addition, in this embodiment, the multiple stirring rods 12 on the stirring shaft 11 are staggered to reduce interference when the stirring rod 12 rotates into the mounting groove 121.

[0041] Reference Figures 3 to 6 A detection member is provided on the fixed rod 23. In this embodiment, the detection member is configured as a distance sensor. The distance sensor is connected to the controller, and the controller is connected to the stirring motor. During mixing, the distance sensor is in a disconnected state. After the mixing is completed, the stirring shaft 11 and the stirring rod 12 stop rotating, and the distance sensor is energized. When the distance sensor detects that the distance is not zero, the stirring motor is rotated by the controller, and then the position of the stirring rod 12 is adjusted by the stirring motor. When the stirring rod 12 corresponds to the fixed rod 23 (such as Figure 4 As shown), at this time, the distance sensor detects that the distance is zero, and the stirring motor stops. Then, when the squeezing net 21 moves, the distance between the two parts of the squeezing net 21 can be made smaller, thereby achieving a better effect when squeezing bubbles.

[0042] Reference Figures 3 to 6An extension rod 15 is slidably connected to the stirring rod 12, and an adjustment member 5 is provided on the extension rod 15. In this embodiment, the adjustment member 5 is configured as an adjustment spring 51. One end of the adjustment spring 51 is fixed to the extension rod 15, and the other end is fixed to the stirring rod 12. The adjustment spring 51 is used to pull the extension rod 15 to move to the stirring rod 12. At the same time, a control member 6 is provided on the stirring shaft 11. The control member 6 is used to push the extension rod 15 out of the stirring rod 12, at which time the adjustment spring 51 is in a stretched state; the control member 6 is configured as a control block 61. The control block 61 is provided in the stirring shaft 11, and an arc-shaped surface 611 is provided on the control block 61. The arc-shaped surface 611 is provided with a highest point 612. When the stirring rod 12 is in a horizontal state, one end of the stirring rod 12 abuts against the highest point 612, and then the stirring rod 12 moves in a direction close to the mounting groove 121. During rotation, the push rod will gradually move away from the highest point 612, and at this time it will abut against the arc surface 611. Finally, under the action of the adjusting spring 51, the stirring rod 12 will move into the stirring shaft 11. Through the setting of the extension rod 15, when the stirring rod 12 rotates into the installation groove 121, the extension rod 15 moves into the stirring rod 12, and the purpose of easy retraction is achieved. At the same time, due to the setting of the extension rod 15, the length of the stirring rod 12 can be reduced, and then it is convenient to set multiple stirring rods 12 along the length direction of the stirring shaft 11.

[0043] Reference Figures 3 to 6 The pushing assembly 4 includes a connecting rod 41 fixed on the rotating shaft 13, a first pushing rod 42 slidably connected to the stirring shaft 11, and a second pushing rod 43 fixed to the first pushing rod 42. When the stirring rod 12 is horizontal, the connecting rod 41 is tilted downward, and the second pushing rod 43 is set below the connecting rod 41 and abuts against the connecting rod 41. Then, when the first pushing rod 42 moves away from the ground, it can push the connecting rod 41 to rotate, thereby driving the rotating shaft 13 to rotate on the stirring shaft 11, thereby achieving the purpose of adjusting the position of the stirring rod 12. In addition, since there are multiple stirring rods 12, each stirring rod 12 is provided with a pushing assembly 4, and the first pushing rods 42 of the multiple pushing assemblies 4 are connected by a connecting portion, and then the first pushing rod 42 is connected to the cylinder, and the first pushing rod 42 is driven to move by the cylinder, which can drive multiple stirring rods 12 to rotate.

[0044] The implementation principle of the solvent-free fire-retardant coating mixing equipment of the embodiment of the present application is: after the mixing is completed, the position of the stirring rod 12 is adjusted, and then the stirring rod 12 and the fixed rod 23 are made to correspond. At this time, the two extrusion rollers 22 are driven away from each other by the driving component 3, so that the extrusion nets 21 on both sides of the fixed rod 23 move toward the direction close to the stirring shaft 11, and then the raw materials are pushed to move, and at the same time the raw materials in the mixing barrel 01 are squeezed to discharge the bubbles in the raw materials, thereby achieving the purpose of reducing bubbles in the coating.

[0045] Second aspect: The solvent-free fire retardant coating mixing method comprises the following steps: S1: After the raw materials are mixed, the driving roller 31 rotates to drive the driving belt 32 to move, so that the driving belt 32 drives the two squeezing rollers 22 to move away from each other, so that the distance between the two parts of the squeezing net 21 becomes smaller, thereby achieving the purpose of squeezing the raw materials; S2: The vacuum cylinder 06 drives the vacuum plate 05 to move away from the bottom wall of the mixing barrel 01, so that negative pressure is formed in the mixing barrel 01. At this time, the bubbles in the raw materials move towards the vacuum plate 05 under the action of pressure; S3: After the mixed raw materials are discharged, the first push rod 42 moves to drive the second push rod 43 to move, and the second push rod 43 drives the stirring rod 12 to rotate into the installation groove 121; S4: The vacuum cylinder 06 drives the vacuum plate 05 to move toward the bottom wall of the mixing barrel 01 to clean the materials on the inner wall of the mixing barrel 01 and the mixing shaft 11.

[0046] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A solvent-free fire-retardant coating mixing device, comprising a mixing barrel (01) and a mixing assembly (1) rotatably connected to the mixing barrel (01), characterized in that: The mixing barrel (01) is provided with an extrusion assembly (2) for extruding the mixed raw materials in the mixing barrel (01), the extrusion assembly (2) comprising an extrusion net (21) arranged along the inner wall of the mixing barrel (01) and two extrusion rollers (22) moving along the circumference of the mixing barrel (01), and the two extrusion rollers (22) are arranged outside the mixing barrel (01), and the extrusion net (21) extends out of the mixing barrel (01) and is wound around the surface of the extrusion rollers (22). The mixing barrel (01) is provided with an extrusion net (21) for extruding the mixed raw materials in the mixing barrel (01). (21) a fixing rod (23) fixed to the inner wall of the mixing barrel (01), the fixing rod (23) and the two squeezing rollers (22) being arranged on opposite sides of the inner wall of the mixing barrel (01), the mixing barrel (01) being provided with a driving assembly (3) for driving the two squeezing rollers (22) to move in opposite directions, and when the two squeezing rollers (22) move away from each other, the squeezing net (21) moves toward the axis of the mixing barrel (01), squeezing the raw materials in the mixing barrel (01) to discharge bubbles in the raw materials.

2. The solvent-free fire retardant coating mixing equipment according to claim 1, characterized in that: An exhaust plate (05) is slidably connected to the mixing barrel (01), and the side of the exhaust plate (05) abuts against the inner wall of the mixing barrel (01). The mixing barrel (01) is provided with an exhaust cylinder (06) for driving the exhaust plate (05) to move. When the exhaust plate (05) moves away from the bottom wall of the mixing barrel (01), negative pressure is generated in the mixing barrel (01).

3. The solvent-free fire retardant coating mixing equipment according to claim 2, characterized in that: The stirring assembly (1) comprises a stirring shaft (11) rotatably connected to the stirring barrel (01) and stirring rods (12) rotatably connected to a plurality of stirring shafts (11); a mounting groove (121) is provided on the stirring shaft (11); and a pushing assembly (4) for pushing the stirring rod (12) into the mounting groove (121) is provided on the stirring shaft (11).

4. The solvent-free fire retardant coating mixing equipment according to claim 2, characterized in that: The air extraction plate (05) is provided with an air outlet pipe, and the air outlet pipe is provided with a control valve for controlling the opening or closing of the air outlet pipe; when cleaning the residual raw materials in the mixing barrel (01), the air outlet pipe is in an open state; when negative pressure is generated in the mixing barrel (01), the air outlet pipe is in a closed state.

5. The solvent-free fire retardant coating mixing equipment according to claim 3, characterized in that: A rotating shaft (13) is fixedly mounted on the stirring rod (12), and the rotating shaft (13) is rotatably connected to the stirring shaft (11); the pushing assembly (4) comprises a connecting rod (41) fixed to the rotating shaft (13), a first pushing rod (42) slidably connected to the stirring shaft (11), and a second pushing rod (43) fixed to the first pushing rod (42), the end surface of the first pushing rod (42) abuts against the second pushing rod (43), and a resetting member (14) for driving the rotating shaft (13) to reset is provided on the rotating shaft (13).

6. The solvent-free fire retardant coating mixing equipment according to claim 5, characterized in that: An extension rod (15) is slidably connected to the stirring rod (12), and a control member (6) for pushing the extension rod (15) out of the stirring rod (12) and an adjustment member (5) for driving the extension rod (15) to move into the stirring rod (12) are provided on the stirring shaft (11).

7. The solvent-free fire retardant coating mixing equipment according to claim 6, characterized in that: The adjusting member (5) is provided with an adjusting spring (51) for pulling the extension rod (15) to move into the stirring rod (12); the controlling member (6) comprises a controlling block (61) arranged on the stirring shaft (11); the controlling block (61) is provided with an arc surface (611), and a highest point (612) is provided on the arc surface (611); the adjusting spring (51) is used to make one end of the extension rod (15) abut against the arc surface (611).

8. The solvent-free fire retardant coating mixing equipment according to claim 7, characterized in that: The stirring rod (12) is provided with a through hole (122), and the through hole (122) passes through the stirring rod (12) and is in communication with the mounting groove (121).

9. The solvent-free fire retardant coating mixing equipment according to claim 8, characterized in that: The driving assembly (3) comprises a driving roller (31) rotatably connected to the outer wall of the mixing barrel (01) and a driving belt (32) wound around the two driving rollers (31); the driving belt (32) close to the mixing barrel (01) is slidably connected to the outer surface of the mixing barrel (01), and the two squeezing rollers (22) are fixedly mounted on the driving belt (32); when the driving belt (32) moves, it drives the two squeezing rollers (22) to move in opposite directions.

10. A solvent-free fire retardant coating mixing method, characterized in that: The solvent-free fire retardant coating mixing equipment according to claim 9 comprises the following steps: S1: the driving belt (32) drives the two squeezing rollers (22) to move in a direction away from each other; S2: the vacuum cylinder (06) drives the vacuum plate (05) to move away from the bottom wall of the mixing barrel (01); S3: After the raw materials are discharged, the stirring rod (12) is driven by the pushing component (4) to rotate into the mounting groove (121); S4: The air extraction cylinder (06) drives the air extraction plate (05) to move toward the bottom wall of the mixing barrel (01).

Images