CN220482523U - Continuous powder extrusion equipment - Google Patents

Abstract

The utility model discloses continuous powder extrusion equipment, which relates to the technical field of extruders, and particularly comprises a supporting workbench, extrusion equipment, mixing equipment and driving equipment, wherein the extrusion equipment, the mixing equipment and the driving equipment are arranged on the supporting workbench; the mixing device comprises a mixing cylinder, two ends of the mixing cylinder are open, the top of the mixing cylinder is connected with a feeding channel, and one end of the mixing cylinder is connected with the extrusion device; the mixing drum is internally and coaxially provided with an installation shaft, the surface of the installation shaft in the mixing drum is provided with spiral conveying blades, the periphery of each spiral conveying blade is provided with a plurality of stirring shafts parallel to the installation shaft, and the stirring shafts in the mixing drum are provided with mixing blades. When the spiral conveying device is used, the powder around the spiral conveying blade is rapidly stirred by the mixing blade, so that the spiral conveying blade can be used for stirring and mixing rapidly while conveying.

Description

Continuous powder extrusion equipment

Technical Field

The utility model relates to the technical field of extruders, in particular to continuous powder extrusion equipment.

Background

The powder coating is a solid powder synthetic resin coating composed of solid resin, pigment, filler, auxiliary agent and the like. Unlike common solvent-based paint and water-based paint, its dispersion medium is not solvent and water, but air. It has the characteristics of no solvent pollution, 100% film formation and low energy consumption.

For example, an extrusion device for a powder coating extrusion cooler with convenient maintenance is proposed in patent application No. 202020968225.7, specifically, a packing auger drives powder coating to move, and then the powder coating is extruded through a conical extrusion bin and a discharge pipeline, so that the coating is extruded. However, the coating contains a pigment filler, a solvent, an auxiliary agent, a film-forming substance, etc., and contains a large amount of components, and although the components are mixed before being fed into the extruder, there is no mechanism for continuing the stirring and mixing in the extruder, and there is a possibility that the color of the extruded coating may be uneven. We therefore propose a continuous powder extrusion apparatus.

Disclosure of Invention

Aiming at the defect that the existing powder extruder does not have a stirring function, the utility model provides continuous powder extrusion equipment which has the advantage of rapid stirring and mixing and solves the problems in the prior art.

In order to achieve the above purpose, the utility model is realized by the following technical scheme: the utility model designs continuous powder extrusion equipment, which comprises a supporting workbench, extrusion equipment, mixing equipment and driving equipment, wherein the extrusion equipment, the mixing equipment and the driving equipment are arranged on the supporting workbench;

the mixing device comprises a mixing cylinder, two ends of the mixing cylinder are open, the top of the mixing cylinder is connected with a feeding channel, and one end of the mixing cylinder is connected with the extrusion device;

the mixing device comprises a mixing cylinder, a mixing shaft, a screw conveying blade, a plurality of stirring shafts, a stirring shaft and a stirring shaft, wherein the mixing shaft is coaxially arranged in the mixing cylinder, the screw conveying blade is arranged on the surface of the mounting shaft in the mixing cylinder, the stirring shafts parallel to the mounting shaft are arranged around the screw conveying blade, the stirring shaft in the mixing cylinder is provided with the mixing blade, and the mixing blade is not contacted with the screw conveying blade;

one end of the mounting shaft and one end of the stirring shaft extend out from one end of the mixing drum, which is far away from the extrusion equipment, the mounting shaft is positioned at the center of an annular cavity surrounded by the stirring shaft, the mounting shaft and the stirring shaft vertically penetrate through and are rotationally connected to a mounting disc, and the mounting disc is connected with one end of the mixing drum;

the tail ends of the stirring shafts are respectively provided with a first gear, the first gears are respectively meshed with a second gear, and the second gears are coaxially arranged on the mounting shafts; the mounting shaft extends out of the second gear and is connected with the driving device.

Preferably, the driving device comprises a speed reducer connected to the tail end of the mounting shaft, the other end of the speed reducer is connected with a driving motor, and the driving motor and the speed reducer are both mounted on the supporting workbench.

Preferably, the top of the feeding channel is connected with a feeding cylinder through a flange, the side face of the top of the feeding cylinder is obliquely upwards connected with a second discharging channel, the top of the second discharging channel is connected with a first discharging channel through a flange, the first discharging channel is of an arc-shaped structure and is connected with the lower part of a storage bin, and the bottom edge of the storage bin is fixed on the supporting workbench through a plurality of struts.

Preferably, the bottom of the storage bin is bucket-shaped, and at least one vibrating motor is arranged outside the bucket-shaped storage bin.

Preferably, the top of the feeding cylinder is connected with a mounting plate through a flange, the top of the mounting plate is provided with a feeding motor, a rotating shaft of the feeding motor is coaxially arranged in the feeding cylinder and connected with a screw shaft, and the bottom of the screw shaft at least extends to the upper part of the feeding channel.

Preferably, a sealing shell is arranged outside the mounting disc, the sealing shell covers the first gear and the second gear therein, the sealing shell penetrates through and is rotatably connected to the mounting shaft, and the edge of the sealing shell is fastened with the mounting disc through bolts.

Preferably, the extrusion equipment comprises a first extrusion cylinder which is connected with one end of the mixing cylinder far away from the mounting plate through a flange, the first extrusion cylinder is a straight cylinder, the other end of the first extrusion cylinder is connected with a conical second extrusion cylinder, the other end of the second extrusion cylinder is connected with a third extrusion cylinder, the other end of the third extrusion cylinder is connected with an end cover through a flange, and an extrusion head is arranged at the bottom of one end, close to the end cover, of the third extrusion cylinder;

the third extrusion cylinder, the second extrusion cylinder and the first extrusion cylinder are internally provided with an extrusion shaft, and the extrusion shaft is respectively provided with a first spiral extrusion blade positioned in the first extrusion cylinder, a second spiral extrusion blade positioned in the second extrusion cylinder and having a conical structure and a third spiral extrusion blade positioned in the third extrusion cylinder;

one end of the extrusion shaft is coaxially connected with one end of the mounting shaft far away from the mounting disc, and the other end of the extrusion shaft penetrates through and is rotatably connected to the end cover.

Preferably, the bottoms of the third extrusion cylinder, the second extrusion cylinder, the first extrusion cylinder and the mixing cylinder are all provided with brackets, the bottoms of the brackets are provided with connecting plates, and the connecting plates are fastened on the supporting workbench through bolts.

Preferably, the third extrusion cylinder, the second extrusion cylinder and the first extrusion cylinder are arranged in a heating cover, the bottom of the heating cover is connected with a supporting workbench, and heaters distributed along the third extrusion cylinder, the second extrusion cylinder and the first extrusion cylinder are arranged in the heating cover.

Compared with the prior art, when the powder mixer is used, powder is conveyed into the mixing drum through the screw shaft, then the powder around the screw conveying blade is rapidly stirred by the mixing blade, and the powder is rapidly mixed again, so that the powder entering the extrusion equipment is fully mixed, and the condition of uneven mixing can not occur.

Drawings

Fig. 1 is a schematic perspective view of the present utility model.

Fig. 2 is a schematic perspective view of a second embodiment of the present utility model.

Fig. 3 is a front view of the present utility model.

Fig. 4 is a structural view of an extrusion shaft of the present utility model.

Fig. 5 is a front view of the second embodiment of the present utility model.

In the figure: 1. a support table; 2. a stirring shaft; 3. support legs; 4. a mixing drum; 5. a connecting plate; 6. a bracket; 7. an extrusion head; 8. an end cap; 9. a third extrusion barrel; 10. a second extrusion barrel; 11. a first extrusion barrel; 12. a feed cylinder; 13. a material conveying motor; 14. a vibration motor; 15. a first discharge channel; 16. a mounting plate; 17. a first gear; 18. a second gear; 19. a mounting shaft; 20. a storage bin; 21. a support post; 22. a speed reducer; 23. a driving motor; 24. a feed channel; 25. a sealed housing; 26. a second discharge channel; 27. a third screw extrusion blade; 28. mixing blades; 29. spiral conveying blades; 30. a second screw extrusion blade; 31. a first screw extrusion blade; 32. an extrusion shaft; 33. a screw shaft; 34. a mounting plate; 35. and heating the cover.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1 to 5, the present utility model provides a technical solution: the utility model relates to continuous powder extrusion equipment, which comprises a support workbench 1, wherein a plurality of support legs 3 are arranged at the bottom of the support workbench 1, and the continuous powder extrusion equipment, mixing equipment and driving equipment are arranged on the support workbench 1;

as shown in fig. 1, the mixing device comprises a mixing drum 4, two ends of the mixing drum 4 are opened, the top of the mixing drum 4 is connected with a feeding channel 24, the feeding channel 24 is used for adding coating powder into the mixing drum, one end of the mixing drum 4 is connected with an extrusion device, and the coating powder is extruded by the extrusion device;

a mounting shaft 19 is coaxially arranged in the mixing drum 4, a spiral conveying blade 29 is arranged on the surface of the mounting shaft 19 in the mixing drum 4, a plurality of stirring shafts 2 parallel to the mounting shaft 19 are arranged around the spiral conveying blade 29, a mixing blade 28 is arranged on the stirring shaft 2 in the mixing drum 4, and the mixing blade 28 and the spiral conveying blade 29 are not contacted with each other to prevent mutual contact;

the installation shaft 19 and one end of the stirring shaft 2 extend out from one end of the mixing drum 4 away from the extrusion equipment, the installation shaft 19 is positioned at the center of an annular cavity surrounded by the stirring shaft 2, the installation shaft 19 and the stirring shaft 2 vertically penetrate through and are connected with each other (specifically, are connected with each other through a bearing and a shaft seal) on the installation disc 16, and the installation disc 16 is connected with one end of the mixing drum 4, namely, the installation disc 16 is connected with the mixing drum 4 through a flange;

the tail ends of the stirring shafts 2 are provided with first gears 17, a certain distance is arranged between the first gears 17, the first gears 17 are meshed with second gears 18, and the second gears 18 are coaxially arranged on an installation shaft 19; the mounting shaft 19 extends beyond the second gear 18 and is connected to the drive device. When the utility model is used, as shown in fig. 1, the driving device drives the installation shaft 19 to rotate, and the installation shaft 19 drives the second gear 18 to rotate, so that the second gear 18 simultaneously drives the first gear 17 to rotate, and the stirring shaft 2 and the installation shaft 19 simultaneously rotate, so that the mixing blade 28 and the spiral conveying blade 29 simultaneously rotate, in the actual application process, the diameter of the mixing blade 28 is smaller than that of the spiral conveying blade 29, and simultaneously, the diameter of the first gear 17 is smaller than that of the second gear 18, so that a speed-increasing mechanism with a large wheel and a small wheel is formed, the mixing blade 28 can rapidly stir powder around the spiral conveying blade 29, normal conveying of the spiral conveying blade 29 is not influenced, powder entering the extrusion device is continuously stirred and mixed, and the powder entering the extrusion device is completely and uniformly mixed.

As shown in fig. 1 and 2, the top of the feeding channel 24 is connected with the feeding barrel 12 through a flange, the side surface of the top of the feeding barrel 12 is obliquely upwards connected with the second discharging channel 26, the top of the second discharging channel 26 is connected with the first discharging channel 15 through a flange, the first discharging channel 15 is in an arc structure, the top of the first discharging channel is connected below the storage bin 20, and the bottom edge of the storage bin 20 is fixed on the supporting workbench 1 through a plurality of supporting posts 21;

the top of the feeding barrel 12 is connected with a mounting plate 34 through a flange, the top of the mounting plate 34 is provided with a feeding motor 13, a rotating shaft of the feeding motor 13 is coaxially arranged in the feeding barrel 12 and is connected with a screw shaft 33, the rotating shaft is connected with the mounting plate 34 through a bearing, the supporting strength of the rotating shaft is increased, the bottom of the screw shaft 33 at least extends to the upper part of a feeding channel 24, the screw shaft 33 can drive powder to be conveyed into the feeding channel 24 along the feeding barrel 12, the blocking prevention is realized, and meanwhile, the powder can be continuously conveyed into a mixing barrel 4;

in order to enable the powder to flow downwards rapidly, the bottom of the storage bin 20 is in a bucket shape, at least one vibrating motor 14 is arranged outside the bucket-shaped storage bin 20, and the powder is driven to flow downwards by the vibration of the vibrating motor 14.

As shown in fig. 2, a sealing housing 25 is disposed outside the mounting plate 16, the sealing housing 25 covers the first gear 17 and the second gear 18 therein, the sealing housing 25 is connected to the mounting shaft 19 in a penetrating and rotating manner (specifically, connected to the shaft seal through a bearing), the edge of the sealing housing 25 and the mounting plate 16 are fastened through bolts, the sealing housing 25 seals the gears, and meanwhile, lubricating oil coated on the gears is also sealed.

As shown in fig. 1 and 2, the driving device comprises a speed reducer 22 connected to the tail end of the mounting shaft 19, the other end of the speed reducer 22 is connected with a driving motor 23, the driving motor 23 and the speed reducer 22 are both mounted on the supporting workbench 1, the driving motor 23 drives the mounting shaft 19 to rotate through the speed reducer 22, and the speed reducer is used for reducing the rotation speed and increasing the output torque.

As shown in fig. 3 and 4, the extruding device comprises a first extruding cylinder 11 which is flanged at one end of the mixing cylinder 4 far away from the mounting plate 16, wherein the first extruding cylinder 11 is a straight cylinder, the other end of the first extruding cylinder 11 is connected with a conical second extruding cylinder 10, the other end of the second extruding cylinder 10 is connected with a third extruding cylinder 9, the other end of the third extruding cylinder 9 is flanged with an end cover 8, and an extruding head 7 is arranged at the bottom of one end, close to the end cover 8, of the third extruding cylinder 9;

the third extrusion barrel 9, the second extrusion barrel 10 and the first extrusion barrel 11 are internally provided with an extrusion shaft 32, as shown in fig. 4, the extrusion shaft 32 is respectively provided with a first spiral extrusion blade 31 positioned in the first extrusion barrel 11, a second spiral extrusion blade 30 (shown in a broken line in fig. 4) positioned in the second extrusion barrel 10 and having a conical structure, and a third spiral extrusion blade 27 positioned in the third extrusion barrel 9;

wherein, one end of the extruding shaft 32 and one end of the mounting shaft 19 far away from the mounting plate 16 are coaxially connected, and the other end of the extruding shaft 32 penetrates through and is rotatably connected (specifically connected with a shaft seal through a bearing) on the end cover 8, so when the mounting shaft 19 rotates, the mounting shaft 19 drives the extruding shaft 32 to rotate, and the rotating extruding shaft 32 drives each spiral extruding blade to rotate, so that powder is extruded and compressed one by one, and finally extruded from the extruding head 7.

As shown in fig. 1 and 2, the third extruding cylinder 9, the second extruding cylinder 10, the first extruding cylinder 11 and the bottom of the mixing cylinder 4 are all provided with a bracket 6, the bottom of the bracket 6 is provided with a connecting plate 5, and the connecting plate 5 is fastened on the supporting workbench 1 through bolts.

As shown in fig. 5, the third extrusion barrel 9, the second extrusion barrel 10 and the first extrusion barrel 11 are disposed in a heating cover 35, the bottom of the heating cover 35 is connected with the supporting table 1, heaters distributed along the third extrusion barrel 9, the second extrusion barrel 10 and the first extrusion barrel 11 are disposed in the heating cover 35, the heaters heat the third extrusion barrel 9, the second extrusion barrel 10 and the first extrusion barrel 11, powder melting is accelerated, and the heating rod can be a heating resistance wire.

In the description of the present utility model, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are based on directions or positional relationships shown in the drawings, are merely for convenience of description and simplification of description, and do not indicate or imply that the apparatus or element to be referred to must have a specific direction, be constructed and operated in the specific direction, and thus should not be construed as limiting the present utility model; the terms "first," "second," "third," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "coupled," and the like are to be construed broadly, and may be fixedly coupled, detachably coupled, or integrally coupled, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (9)

1. Continuous powder extrusion apparatus, comprising a support table (1), characterized in that: the device also comprises extrusion equipment, mixing equipment and driving equipment which are arranged on the supporting workbench (1);

the mixing equipment comprises a mixing cylinder (4), two ends of the mixing cylinder (4) are open, the top of the mixing cylinder (4) is connected with a feeding channel (24), and one end of the mixing cylinder (4) is connected with the extrusion equipment;

an installation shaft (19) is coaxially arranged in the mixing drum (4), spiral conveying blades (29) are arranged on the surface of the installation shaft (19) in the mixing drum (4), a plurality of stirring shafts (2) parallel to the installation shaft (19) are arranged around the spiral conveying blades (29), mixing blades (28) are arranged on the stirring shafts (2) in the mixing drum (4), and the mixing blades (28) are not contacted with the spiral conveying blades (29);

one end of the mounting shaft (19) and one end of the stirring shaft (2) extend out from one end of the mixing drum (4) far away from the extrusion equipment, the mounting shaft (19) is positioned at the center of an annular cavity surrounded by the stirring shaft (2), the mounting shaft (19) and the stirring shaft (2) vertically penetrate through and are rotationally connected to a mounting disc (16), and the mounting disc (16) is connected with one end of the mixing drum (4);

the tail ends of the stirring shafts (2) are respectively provided with a first gear (17), the first gears (17) are respectively meshed with a second gear (18), and the second gears (18) are coaxially arranged on the mounting shafts (19); the mounting shaft (19) extends beyond the second gear (18) and is connected to the drive device.

2. The continuous powder extrusion apparatus of claim 1, wherein: the driving device comprises a speed reducer (22) connected to the tail end of the mounting shaft (19), the other end of the speed reducer (22) is connected with a driving motor (23), and the driving motor (23) and the speed reducer (22) are both mounted on the supporting workbench (1).

3. The continuous powder extrusion apparatus of claim 1, wherein: the top of feed channel (24) is connected with feed cylinder (12) through flange joint, and the top side slope of feed cylinder (12) upwards is connected with second discharge channel (26), and the top of second discharge channel (26) is connected with first discharge channel (15) through flange joint, and first discharge channel (15) are arc structure and top connection in the below of flourishing feed bin (20), and the bottom edge of flourishing feed bin (20) is fixed through many spinal branch posts (21) on supporting bench (1).

4. A continuous powder extrusion apparatus as claimed in claim 3, wherein: the bottom of the storage bin (20) is bucket-shaped, and at least one vibrating motor (14) is arranged outside the bucket-shaped storage bin (20).

5. A continuous powder extrusion apparatus as claimed in claim 3, wherein: the top of feed cylinder (12) is connected with mounting panel (34) through the flange, and the top of mounting panel (34) is equipped with defeated material motor (13), and the pivot of defeated material motor (13) is coaxial to be arranged in feed cylinder (12) and be connected with screw axis (33), the bottom of screw axis (33) stretches to feed channel (24) top at least.

6. The continuous powder extrusion apparatus of claim 1, wherein: the mounting plate (16) is externally provided with a sealing shell (25), the sealing shell (25) covers the first gear (17) and the second gear (18) therein, the sealing shell (25) penetrates through and is rotatably connected to the mounting shaft (19), and the edge of the sealing shell (25) is fastened with the mounting plate (16) through bolts.

7. The continuous powder extrusion apparatus of claim 1, wherein: the extrusion equipment comprises a first extrusion cylinder (11) which is connected with one end of the mixing cylinder (4) far away from the mounting plate (16) in a flange manner, the first extrusion cylinder (11) is a straight cylinder, the other end of the first extrusion cylinder (11) is connected with a conical second extrusion cylinder (10), the other end of the second extrusion cylinder (10) is connected with a third extrusion cylinder (9), the other end of the third extrusion cylinder (9) is connected with an end cover (8) in a flange manner, and an extrusion head (7) is mounted at the bottom of one end, close to the end cover (8), of the third extrusion cylinder (9);

an extrusion shaft (32) is arranged in the third extrusion cylinder (9), the second extrusion cylinder (10) and the first extrusion cylinder (11), and the extrusion shaft (32) is respectively provided with a first spiral extrusion blade (31) positioned in the first extrusion cylinder (11), a second spiral extrusion blade (30) positioned in the second extrusion cylinder (10) and having a conical structure, and a third spiral extrusion blade (27) positioned in the third extrusion cylinder (9);

wherein one end of the extrusion shaft (32) is coaxially connected with one end of the mounting shaft (19) far away from the mounting disc (16), and the other end of the extrusion shaft (32) penetrates and is rotatably connected with the end cover (8).

8. The continuous powder extrusion apparatus of claim 7, wherein: the bottom of third extrusion section of thick bamboo (9), second extrusion section of thick bamboo (10), first extrusion section of thick bamboo (11) and mixing drum (4) is all installed support (6), and connecting plate (5) are installed to the bottom of support (6), and connecting plate (5) pass through bolt-up on supporting bench (1).

9. The continuous powder extrusion apparatus of claim 7, wherein: the third extrusion cylinder (9), the second extrusion cylinder (10) and the first extrusion cylinder (11) are arranged in a heating cover (35), the bottom of the heating cover (35) is connected with the supporting workbench (1), and heaters distributed along the third extrusion cylinder (9), the second extrusion cylinder (10) and the first extrusion cylinder (11) are arranged in the heating cover (35).