A fire retardant powder coating mixing equipment

Abstract

The present invention relates to the technical field of powder coating stirring, and more specifically, to a fire-proof powder coating stirring device, comprising a support platform, a controller, a side plate and a stepper motor, wherein the controller and the side plate are both arranged on the support platform, and the stepper motor is arranged on the support platform. The stirring device also includes a stirring system, and the stirring system is arranged on the support platform for stirring the powder coating. The stirring system includes a stirring container and a stirring component, and the stirring container is movably arranged between the support platform and the side plate and connected to the stepper motor. The stirring container is an expandable structure, and the stirring component is arranged in the stirring container for stirring and screening the powder coating. The stirring execution structure can be used to stir the powder coating in the stirring container without dead ends, and the cooperation between the extendable expansion blades and the stirring plates and the dynamic stirring blades are used to further improve the stirring effect of the powder coating.

Description

Technical Field

[0001] The invention relates to the technical field of powder coating stirring, and more specifically to a fireproof powder coating stirring device. Background Art

[0002] The types of powder coatings that can be used in fire retardant powder coatings are mainly epoxy, epoxy-polyester, polyester and polyurethane powder coatings, among which the most common type is epoxy powder coating.

[0003] In the production process of fire-retardant powder coatings, different types of raw materials need to be mixed together for stirring. Usually, stirring equipment specially used for stirring powder coatings is used. The existing stirring equipment has the following defects:

[0004] Existing stirring equipment usually introduces powder coating raw materials into a static container for stirring. The static container makes it difficult for the raw materials in the lower layer to mix with the raw materials in the upper layer, resulting in uneven mixing. In addition, the stirring roller used in the existing stirring equipment has a simple structure, and dead corners are easily formed during stirring, which will also affect the quality of the powder coating produced later. Summary of the invention

[0005] The object of the present invention is to provide a fire retardant powder coating stirring device to solve the problems raised in the above background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A fireproof powder coating stirring device, comprising a support platform, a controller, a side plate and a stepper motor, wherein the controller and the side plate are both arranged on the support platform, the stepper motor is arranged on the support platform, the stirring device also comprises a stirring system, the stirring system is arranged on the support platform and is used to stir the powder coating, the stirring system comprises a stirring container and a stirring component, the stirring container is movably arranged between the support platform and the side plate and is connected to the stepper motor, the stirring container is a deployable structure, the stirring component is arranged in the stirring container and is used to stir and screen the powder coating;

[0008] The stirring assembly includes an intermediate table, a screening structure, a positioning unit and a stirring execution structure. The intermediate table is arranged in the middle position of the stirring container. A driving seat is arranged on the intermediate table. The driving seat is connected to the output end of the stepping motor. The screening structure is arranged in the intermediate table for screening the powder coating. The stirring execution structure is in two groups and is symmetrically arranged on both sides of the intermediate table. The positioning unit is connected to the stirring execution structure. When the positioning unit is working, it controls the stirring execution structure to work and stirs the powder coating. The stirring container includes two semicircular guide rails, Two mixing half barrels, a hydraulic cylinder and a limit bar, the two semicircular guide rails are symmetrically and movably arranged on a support platform, the hydraulic cylinders are in multiple numbers and symmetrically arranged on the support platform, the movable ends of the hydraulic cylinders are connected to the semicircular guide rails, a mixing half barrel is movably arranged in each of the semicircular guide rails, the middle platform is located between the two mixing half barrels, a limit bar is arranged on the mixing half barrel, the outer wall of the semicircular guide rail is formed with a No. 1 guide groove that slides with the limit bar, the mixing half barrel is movably arranged with a moving wheel, and the inner wall of the semicircular guide rail is formed with a No. 2 guide groove that slides with the moving wheel.

[0009] A further technical solution of the present application is as follows: a rotating table is movably arranged on the side panel, a slide groove is symmetrically formed on the rotating table, a sliding rod is arranged on the mixing half barrel, and the sliding rod and the slide groove are slidably matched.

[0010] A further technical solution of the present application is as follows: the screening structure comprises a screen, a crushing roller, a mounting shaft and a sealing plate, the screen being arranged on an intermediate platform, the sealing plates being in a group and symmetrically and movably arranged on both sides of the screen, the sealing plates slidingly passing through the intermediate platform and fitting with the gap of the screen, two mounting shafts being symmetrically and movably arranged on each sealing plate, the crushing roller sleeve being arranged on the mounting shaft and elastically connected therebetween, the sealing plate being connected to a positioning unit, and the positioning unit adjusting the position of the sealing plate when working.

[0011] The present application has a further technical solution: the positioning unit includes a movable seat, a reciprocating screw, a slot and a connecting shaft, the reciprocating screw is movably arranged on the middle platform, the movable seat is movably arranged in the middle platform and is slidably sleeved on the outer wall of the reciprocating screw, the reciprocating screw and the movable seat are threadedly matched, one end of the reciprocating screw is formed with a slot, the connecting shaft is arranged on the side plate, one end of the connecting shaft is slidably inserted in the slot, and the movable seat is connected to the sealing plate and the stirring execution structure.

[0012] The present application has a further technical solution: the stirring execution structure includes a gear, a fixed plate, a stirring shaft and an extending blade unit, the stirring shaft is movably arranged on the sealing plate, the gear is movably arranged on one side of the middle platform and connected to the stirring shaft, the fixed plate is arranged on the middle platform, the inner wall of the fixed plate is provided with a rack, the rack and the gear are meshed, and a plurality of groups of extending blade units are arranged on the stirring shaft, and the extending blade units are in an extendable structure.

[0013] The present application has a further technical solution: a hollow shaft is movably arranged on the sealing plate, one end of the stirring shaft is slidably inserted in the hollow shaft and the two are elastically connected, a ball is slidably embedded in the end of the stirring shaft away from the hollow shaft, and the ball is slidably matched with the inner wall of the stirring half barrel.

[0014] A further technical solution of the present application is as follows: the extending blade unit includes an assembly seat, a stirring plate and an unfolding piece, the assembly seat is arranged on the stirring shaft, the stirring plate is movably arranged in a through groove formed on the assembly seat, the stirring plate and the assembly seat are elastically connected, the unfolding piece is arranged on the stirring plate, and the stirring plate and the inner wall of the stirring half barrel are slidably matched.

[0015] A further technical solution of the present application is: the unfolding member includes an unfolding blade and a receiving groove, the receiving groove is symmetrically formed on the stirring plate, one end of the unfolding blade is hinged to the receiving groove and a torsion spring is provided at the hinge, and the through groove is located on the moving path of the unfolding blade.

[0016] A further technical solution of the present application is as follows: a resistance reducing member is provided at one end of the stirring plate to reduce the friction resistance between the stirring plate and the stirring half barrel.

[0017] Compared with the prior art, the technical solution provided by the embodiment of the present invention has the following beneficial effects:

[0018] The embodiment of the present invention sets a stepper motor to drive the stirring container so that the stirring container itself is in a rotating state, and sets an intermediate platform in the middle of the stirring container. By utilizing the linkage relationship between the positioning unit, the screening structure and the stirring execution structure, when the positioning unit is working, not only can the screening structure be used to screen and crush the powder coating in the stirring container, but the stirring execution structure can also be used to stir the powder coating in the stirring container without dead angles. In addition, the cooperation between the extendable expanded blades and the stirring plate and the dynamic stirring blades are used to further improve the stirring effect of the powder coating. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of a fire-retardant powder coating stirring device in an embodiment of the present invention;

[0020] Figure 2 It is a schematic diagram of the structure of the stirring system in the stirring device for fire-retardant powder coating according to an embodiment of the present invention;

[0021] Figure 3 It is a schematic diagram of the structure of a stirring container in a stirring device for fire-retardant powder coating according to an embodiment of the present invention;

[0022] Figure 4 It is a schematic diagram of the structure of a stirring assembly in a stirring device for fire-retardant powder coating according to an embodiment of the present invention;

[0023] Figure 5 It is a structural schematic diagram of a screening structure in a stirring device for fire-retardant powder coatings according to an embodiment of the present invention;

[0024] Figure 6 It is a structural schematic diagram of a positioning unit in a stirring device for fire-retardant powder coatings according to an embodiment of the present invention;

[0025] Figure 7 It is a structural schematic diagram of a stirring execution structure in a fire-retardant powder coating stirring device according to an embodiment of the present invention;

[0026] Figure 8 It is a schematic diagram of the structure of the extended blade unit in the fire-retardant powder coating stirring equipment in an embodiment of the present invention.

[0027] Explanation of the symbols in the schematic diagram:

[0028] 1-support table, 2-controller, 3-stepping motor, 4-hydraulic cylinder, 5-semicircular guide rail, 6-guide groove No. 1, 7-limiting bar, 8-moving wheel, 9-side plate, 10-rotating table, 11-connecting shaft, 12-mixing half barrel, 13-slide groove, 14-slide rod, 15-middle table, 16-guide groove No. 2, 17-sealing plate, 18-driving seat, 19-mixing shaft, 20-ball, 21-crushing roller, 22-installing shaft, 23-screen, 24-moving seat, 25-slot, 26-reciprocating screw, 27-assembly seat, 28-mixing plate, 29-unfolding blades, 30-fixed plate, 31-gear, 32-hollow shaft, 33-roller, 34-storage groove, 35-through groove, 36-rack. DETAILED DESCRIPTION

[0029] 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 ordinary technicians in this field without creative work are within the scope of protection of the present invention. The present invention is further described below in combination with the embodiments.

[0030] See also Figure 1-Figure 8In one embodiment of the present application, a fire-retardant powder coating stirring device includes a support platform 1, a controller 2, a side plate 9 and a stepper motor 3, wherein the controller 2 and the side plate 9 are both arranged on the support platform 1, and the stepper motor 3 is arranged on the support platform 1. The stirring device also includes a stirring system, which is arranged on the support platform 1 and is used to stir the powder coating. The stirring system includes a stirring container and a stirring component, which is movably arranged between the support platform 1 and the side plate 9 and connected to the stepper motor 3. The stirring container is a deployable structure, and the stirring component is arranged in the stirring container and is used to stir and screen the powder coating.

[0031] The stirring assembly includes an intermediate platform 15, a screening structure, a positioning unit and a stirring execution structure. The intermediate platform 15 is arranged in the middle position of the stirring container. A driving seat 18 is arranged on the intermediate platform 15. The driving seat 18 is connected to the output end of the stepper motor 3. The screening structure is arranged in the intermediate platform 15 for screening the powder coating. The stirring execution structure is in two groups and is symmetrically arranged on both sides of the intermediate platform 15. The positioning unit is connected to the stirring execution structure. When the positioning unit is working, it controls the stirring execution structure to work and stirs the powder coating.

[0032] In a specific case of the present embodiment, the mixing container includes two semicircular guide rails 5, two mixing half barrels 12, a hydraulic cylinder 4 and a limit bar 7. The two semicircular guide rails 5 are symmetrically and movably arranged on the support platform 1. The hydraulic cylinders 4 are in multiple numbers and are symmetrically arranged on the support platform 1. The movable ends of the hydraulic cylinders 4 are connected to the semicircular guide rails 5. A mixing half barrel 12 is movably arranged in each of the semicircular guide rails 5. The intermediate platform 15 is located between the two mixing half barrels 12. A limit bar 7 is arranged on the mixing half barrel 12. The outer wall of the semicircular guide rail 5 is formed with a No. 1 guide groove 6 that slides with the limit bar 7. A moving wheel 8 is movably arranged on the mixing half barrel 12. A No. 2 guide groove 16 that slides with the moving wheel 8 is formed on the inner wall of the semicircular guide rail 5.

[0033] In another specific situation of this embodiment, a rotating table 10 is movably provided on the side plate 9, a slide groove 13 is symmetrically formed on the rotating table 10, a sliding rod 14 is provided on the mixing half barrel 12, and the sliding rod 14 and the slide groove 13 are slidably matched.

[0034] It should be noted that the present embodiment is not limited to the above-mentioned hydraulic cylinder 4 to adjust the distance between the two semicircular guide rails 5 and the mixing half barrel 12, and a linear motor or electric cylinder may also be used instead, which are not listed here one by one.

[0035] In actual application, the controller 2 controls the hydraulic cylinder 4 to contract, thereby driving the stirring half barrels 12 to move away from each other, so that the stirring container is opened, and the raw materials of the powder coating are poured into the stirring half barrel 12 on the lower side, and then the hydraulic cylinder 4 is controlled to extend, so that the stirring half barrels 12 are closed, and the stepper motor 3 is controlled by the controller 2 to be energized and rotated, thereby driving the drive seat 18 to rotate, and then driving the stirring half barrel 12 to rotate along the second guide groove 16, so that the powder coating is switched and stored between the two stirring half barrels 12. In this process, the adjustment unit can be controlled to work, and the adjustment unit controls the screening structure and the stirring execution structure to work, so that the screening structure can be used to screen the powder coating and crush large volumes of coating, and the stirring execution structure can stir the powder coating in the two stirring half barrels 12.

[0036] See also Figure 1-Figure 6 As another preferred embodiment of the present application, the screening structure includes a screen 23, a crushing roller 21, a mounting shaft 22 and a sealing plate 17. The screen 23 is arranged on the intermediate platform 15. The sealing plates 17 are in a group and are symmetrically and movably arranged on both sides of the screen 23. The sealing plates 17 slide through the intermediate platform 15 and are gap-matched with the screen 23. Two mounting shafts 22 are symmetrically and movably arranged on each sealing plate 17. The crushing roller 21 is sleeved on the mounting shaft 22 and the two are elastically connected. The sealing plate 17 is connected to a positioning unit, and the positioning unit adjusts the position of the sealing plate 17 when working.

[0037] In this exemplary embodiment, the positioning unit includes a movable seat 24, a reciprocating screw 26, a slot 25 and a connecting shaft 11. The reciprocating screw 26 is movably arranged on the intermediate platform 15. The movable seat 24 is movably arranged in the intermediate platform 15 and is slidably sleeved on the outer wall of the reciprocating screw 26. The reciprocating screw 26 and the movable seat 24 are threadedly matched. A slot 25 is formed at one end of the reciprocating screw 26. The connecting shaft 11 is arranged on the side plate 9. One end of the connecting shaft 11 is slidably inserted in the slot 25. The movable seat 24 is connected to the sealing plate 17 and the stirring execution structure.

[0038] When the stepper motor 3 drives the driving seat 18 to rotate, so that the stirring half barrel 12 rotates along the second guide groove 16, on the one hand, the powder coating stored in the two stirring half barrels 12 can be repeatedly passed through the screen 23, so as to realize the screening of the powder coating. On the other hand, during the rotation of the stirring half barrel 12 and the intermediate table 15, the cooperation between the connecting shaft 11 and the slot 25 can be utilized to drive the reciprocating screw 26 to rotate, so that under the action of the threaded cooperation between the reciprocating screw 26 and the moving seat 24, the moving seat 24 is driven to reciprocate along the reciprocating screw 26, and then the crushing roller 21 and the mounting shaft 22 can be driven to move, so as to crush the large volume of powder left on the surface of the screen 23, and at the same time, the stirring execution structure can be controlled to stir the powder coating.

[0039] See also Figure 1 , Figure 4 , Figure 5 , Figure 6 , Figure 7 as well as Figure 8 As another preferred embodiment of the present application, the stirring execution structure includes a gear 31, a fixed plate 30, a stirring shaft 19 and an extending blade unit, the stirring shaft 19 is movably arranged on the sealing plate 17, the gear 31 is movably arranged on one side of the intermediate platform 15 and connected to the stirring shaft 19, the fixed plate 30 is arranged on the intermediate platform 15, the inner wall of the fixed plate 30 is provided with a rack 36, the rack 36 and the gear 31 are meshed, and the stirring shaft 19 is provided with a plurality of groups of extending blade units, and the extending blade units are in an extendable structure.

[0040] In this exemplary embodiment, a hollow shaft 32 is movably provided on the sealing plate 17, one end of the stirring shaft 19 is slidably inserted in the hollow shaft 32 and the two are elastically connected, and a ball 20 is slidably embedded in the end of the stirring shaft 19 away from the hollow shaft 32, and the ball 20 is slidably matched with the inner wall of the stirring half barrel 12.

[0041] When the connecting shaft 11 drives the reciprocating screw 26 to rotate, the moving seat 24 can be driven to reciprocate in the horizontal direction under the cooperation between the reciprocating screw 26 and the moving seat 24, and then the stirring shaft 19 and the gear 31 can be driven to reciprocate in the horizontal direction. Under the meshing action between the gear 31 and the rack 36, the stirring shaft 19 can be driven to reciprocate and rotate at the same time, and then the extending blade unit can be driven to rotate. While the extending blade unit rotates with the stirring shaft 19, it can also expand, further improving the stirring effect of the powder coating. At the same time, the sliding cooperation between the ball 20 and the inner wall of the stirring half barrel 12 can be used to make the stirring shaft 19 reciprocate relative to the hollow shaft 32, thereby realizing the adjustment of the position of the extending blade unit.

[0042] See also Figure 1 , Figure 4 , Figure 5 , Figure 6 , Figure 7 as well as Figure 8 As another preferred embodiment of the present application, the extending blade unit includes an assembly seat 27, a stirring plate 28 and an unfolding piece. The assembly seat 27 is arranged on the stirring shaft 19, and the stirring plate 28 is movably arranged in a through groove 35 formed on the assembly seat 27. The stirring plate 28 and the assembly seat 27 are elastically connected, and the unfolding piece is arranged on the stirring plate 28. The stirring plate 28 and the inner wall of the stirring half barrel 12 are slidably matched.

[0043] In a specific case of this embodiment, the unfolding member includes an unfolding blade 29 and a receiving groove 34, the receiving groove 34 is symmetrically formed on the stirring plate 28, one end of the unfolding blade 29 is hinged to the receiving groove 34 and a torsion spring is provided at the hinge, and the through groove 35 is located on the moving path of the unfolding blade 29.

[0044] In another specific case of this embodiment, a resistance reducing member is provided at one end of the stirring plate 28 to reduce the friction resistance between the stirring plate 28 and the stirring half barrel 12 .

[0045] It should be particularly noted that, in this embodiment, the resistance reducing member can be a sphere or a wheel. In this embodiment, the resistance reducing member is preferably a roller 33, which is movably disposed at one end of the stirring plate 28 and slidably cooperates with the inner wall of the stirring half barrel 12.

[0046] When the reciprocating screw 26 rotates, the stirring shaft 19 rotates while reciprocating in the horizontal direction. Under the interference between the roller 33 and the inner wall of the stirring half barrel 12, the stirring plate 28 can be driven to reciprocate relative to the assembly seat 27, so that the expanded blades 29 intermittently meet the through grooves 35, thereby driving the expanded blades 29 to swing relative to the stirring plate 28, thereby realizing the adjustment of the angle between the expanded blades 29 and the stirring plate 28, further improving the stirring effect of the powder coating.

[0047] How this application works:

[0048] The controller 2 controls the hydraulic cylinder 4 to contract, thereby driving the stirring half barrels 12 to move away from each other, so that the stirring container is opened, and the raw materials of the powder coating are poured into the stirring half barrel 12 on the lower side, and then the hydraulic cylinder 4 is controlled to extend, so that the stirring half barrels 12 are closed. When the driving seat 18 is driven to rotate by the stepping motor 3, so that the stirring half barrel 12 rotates along the second guide groove 16, on the one hand, the powder coating stored in the two stirring half barrels 12 can be repeatedly passed through the screen 23, so as to realize the screening of the powder coating. On the other hand, during the rotation of the stirring half barrel 12 and the middle table 15, the cooperation between the connecting shaft 11 and the card slot 25 can be used to drive the reciprocating screw 26 to rotate, so that under the action of the threaded cooperation between the reciprocating screw 26 and the moving seat 24, the moving seat 24 is driven to reciprocate along the reciprocating screw 26, and then the crushing roller 21 and the mounting shaft 22 can be driven to move, so as to crush the large volume of powder left on the surface of the screen 23. When the reciprocating screw 26 is driven to rotate, the movable seat 24 can be driven to reciprocate in the horizontal direction under the cooperation between the reciprocating screw 26 and the movable seat 24, thereby driving the stirring shaft 19 and the gear 31 to reciprocate in the horizontal direction. Under the meshing action between the gear 31 and the rack 36, the stirring shaft 19 can be driven to reciprocate and rotate at the same time, thereby driving the extended blade unit to rotate. At the same time, the sliding cooperation between the ball 20 and the inner wall of the stirring half barrel 12 can be utilized to make the stirring shaft 19 reciprocate relative to the hollow shaft 32, thereby realizing the position adjustment of the extended blade unit. Under the friction between the roller 33 and the inner wall of the stirring half barrel 12, the stirring plate 28 can be driven to reciprocate relative to the assembly seat 27, so that the expanded blade 29 intermittently meets the through groove 35, thereby driving the expanded blade 29 to swing relative to the stirring plate 28, thereby realizing the adjustment of the angle between the expanded blade 29 and the stirring plate 28, and further improving the stirring effect of the powder coating.

[0049] The present invention and its embodiments are described schematically above, and the description is not restrictive. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. Therefore, if a person skilled in the art is inspired by it and designs a structural method and an embodiment similar to the technical solution without creativity without departing from the purpose of the invention, they shall all fall within the protection scope of the present invention.

[0050] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A fire-retardant powder coating stirring device, comprising a support platform, a controller, a side plate and a stepper motor, wherein the controller and the side plate are both arranged on the support platform, and the stepper motor is arranged on the support platform, characterized in that: The stirring device also includes a stirring system, which is arranged on the support platform and is used to stir the powder coating. The stirring system includes a stirring container and a stirring component, the stirring container is movably arranged between the support platform and the side plate and is connected to the stepping motor, the stirring container is a deployable structure, and the stirring component is arranged in the stirring container and is used to stir and screen the powder coating; The stirring assembly includes an intermediate table, a screening structure, a positioning unit and a stirring execution structure. The intermediate table is arranged in the middle position of the stirring container. A driving seat is arranged on the intermediate table. The driving seat is connected to the output end of the stepping motor. The screening structure is arranged in the intermediate table for screening the powder coating. The stirring execution structure is in two groups and is symmetrically arranged on both sides of the intermediate table. The positioning unit is connected to the stirring execution structure. When the positioning unit is working, it controls the stirring execution structure to work and stirs the powder coating. The stirring container includes two semicircular guide rails, Two mixing half barrels, a hydraulic cylinder and a limit bar, the two semicircular guide rails are symmetrically and movably arranged on a support platform, the number of the hydraulic cylinders is several and they are symmetrically arranged on the support platform, the movable end of the hydraulic cylinder is connected to the semicircular guide rail, a mixing half barrel is movably arranged in each of the semicircular guide rails, the middle platform is located between the two mixing half barrels, a limit bar is arranged on the mixing half barrel, the outer wall of the semicircular guide rail is formed with a No. 1 guide groove that slides with the limit bar, the mixing half barrel is movably arranged with a moving wheel, and the inner wall of the semicircular guide rail is formed with a No. 2 guide groove that slides with the moving wheel; The screening structure includes a screen, a crushing roller, a mounting shaft and a sealing plate. The screen is arranged on the middle platform. The sealing plates are in a group and are symmetrically and movably arranged on both sides of the screen. The sealing plates slide through the middle platform and are gap-matched with the screen. Two mounting shafts are symmetrically and movably arranged on each sealing plate. The crushing roller is sleeved on the mounting shaft and the two are elastically connected. The sealing plate is connected to a positioning unit, and the positioning unit adjusts the position of the sealing plate when working.

2. The fire retardant powder coating stirring device according to claim 1, characterized in that: A rotating platform is movably arranged on the side plate, and a slide groove is symmetrically formed on the rotating platform. A sliding rod is arranged on the mixing half barrel, and the sliding rod and the slide groove are slidably matched.

3. The fire retardant powder coating stirring device according to claim 1, characterized in that: The positioning unit includes a moving seat, a reciprocating screw, a slot and a connecting shaft. The reciprocating screw is movably arranged on the middle platform. The moving seat is movably arranged in the middle platform and is slidably sleeved on the outer wall of the reciprocating screw. The reciprocating screw and the moving seat are threadedly matched. A slot is formed at one end of the reciprocating screw. The connecting shaft is arranged on the side plate. One end of the connecting shaft is slidably inserted in the slot. The moving seat is connected to the sealing plate and the stirring execution structure.

4. The fire retardant powder coating stirring device according to claim 3, characterized in that: The stirring execution structure includes a gear, a fixed plate, a stirring shaft and an extending blade unit. The stirring shaft is movably arranged on a sealing plate. The gear is movably arranged on one side of the middle platform and connected to the stirring shaft. The fixed plate is arranged on the middle platform. A rack is arranged on the inner wall of the fixed plate. The rack is meshed with the gear. Several groups of extending blade units are arranged on the stirring shaft, and the extending blade units are in an extendable structure.

5. The fire retardant powder coating stirring device according to claim 4, characterized in that: A hollow shaft is movably arranged on the sealing plate, one end of the stirring shaft is slidably inserted in the hollow shaft and the two are elastically connected, a ball is slidably embedded in the end of the stirring shaft away from the hollow shaft, and the ball is slidably matched with the inner wall of the stirring half barrel.

6. The fire retardant powder coating stirring device according to claim 5, characterized in that: The extending blade unit includes an assembly seat, a stirring plate and an unfolding piece. The assembly seat is arranged on the stirring shaft. The stirring plate is movably arranged in a through groove formed on the assembly seat. The stirring plate and the assembly seat are elastically connected. The unfolding piece is arranged on the stirring plate. The stirring plate and the inner wall of the stirring half barrel are slidably matched.

7. The fire retardant powder coating stirring device according to claim 6, characterized in that: The unfolding member comprises an unfolding blade and a receiving groove. The receiving groove is symmetrically formed on the stirring plate. One end of the unfolding blade is hinged to the receiving groove and a torsion spring is arranged at the hinge. The through groove is located on the moving path of the unfolding blade.

8. The fire retardant powder coating stirring device according to claim 7, characterized in that: A resistance reducing member is provided at one end of the stirring plate to reduce the friction resistance between the stirring plate and the stirring half barrel.

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