A high-speed powder mixer

Abstract

The utility model belongs to the technical field of mixing device, concretely relates to a high -speed powder mixing machine. The utility model discloses the base and the drive assembly of installation on the base, stirring subassembly is with drive assembly transmission connection, the material bucket, bottom fixed on the base and top end cover are equipped with the bucket, and stirring subassembly extends to the inside of material bucket, elevating subassembly, fixed end is fixed on the base and telescopic end is fixedly connected with the bucket cover, auxiliary dispersion subassembly, install on the lateral wall of material bucket, and auxiliary dispersion subassembly extends to the inside of material bucket, the discharge plug subassembly, install at the discharge port of material bucket, control the opening / closure of discharge port, scrape wall subassembly, install on the bucket cover, and scrape the material that splashes in the inner wall of material bucket. The utility model drives stirring subassembly to rotate through drive assembly, and the multiple effects such as shearing, collision, diffusion are carried out to the material crushing mixing, and the auxiliary dispersion subassembly is matched, adopts double dispersion mechanism to be mixed with the material stirring together, can effectively improve mixing efficiency and mixing quality.

Description

Technical Field

[0001] This utility model belongs to the field of mixing device technology, specifically relating to a high-speed powder mixer. Background Technology

[0002] In recent years, with the continuous advancement of technology, lithium-ion rechargeable batteries have become important energy storage devices for portable electronic products, electric vehicles, and grid-scale energy storage. However, because their electrolytes are organic liquid electrolytes, they are highly susceptible to thermal runaway under extreme conditions, leading to fires and explosions. Therefore, to meet the higher energy storage demands and safety requirements of the future, solid-state electrolytes have emerged. Compared to liquid electrolytes, solid-state electrolytes offer higher safety and energy density, while effectively addressing the lithium dendrite problem in lithium-ion batteries. Using all-solid-state electrolytes to replace traditional liquid electrolytes and separators fundamentally changes the properties of the electrolyte, effectively avoiding the aforementioned problems. To achieve sufficient contact between the positive electrode active material powder and the solid electrolyte and reduce the electrode material / electrolyte interfacial impedance, it is also necessary to thoroughly mix the positive electrode material with a large amount of sulfide electrolyte. Existing mixing equipment only mixes materials vertically or horizontally, leading to material accumulation at the bottom of the container and poor mixing quality. Therefore, there is an urgent need to develop a high-speed powder mixer with high mixing efficiency and good mixing quality. Utility Model Content

[0003] The purpose of this invention is to overcome the defects of existing technologies, such as easy accumulation of materials, low mixing efficiency, and poor mixing quality, and to provide a high-speed powder mixer that can stir and mix materials in both vertical and horizontal directions, resulting in high mixing efficiency and good mixing quality.

[0004] The technical solution adopted by this utility model to solve its technical problem is: a high-speed powder mixer, including a base and a drive assembly mounted on the base; The stirring assembly is connected in a driving connection to the drive assembly; A material bucket, with its bottom fixed to the base and its top covered with a bucket lid, and the stirring assembly extending into the interior of the material bucket; The lifting assembly has a fixed end fixed to the base and a telescopic end fixedly connected to the bucket lid. An auxiliary dispersing component is installed on the side wall of the material barrel and extends into the material barrel; A discharge plug assembly is installed at the discharge port of the material bucket to control the opening / closing of the discharge port; A scraper assembly, mounted on the bucket lid, is used to scrape off material splashed onto the inner wall of the bucket.

[0005] Furthermore, the stirring assembly includes a stirring shaft, a main shaft sleeved and mounted on the stirring shaft, at least one layer of first blades and second blades sleeved and mounted on the stirring shaft from bottom to top, and a bottom layer of blades sleeved and mounted on the main shaft. The bottom layer of blades is located below the first blades, and the bottom layer of blades and the adjacent first blades, the two adjacent layers of first blades, and the second blades and the adjacent first blades are all arranged perpendicularly.

[0006] Furthermore, the bottom blade has a shearing slope for material on the side facing the direction of movement, the first blade has a shearing slope for material on the side facing the direction of movement, the second blade has a shearing slope for material on the side facing the direction of movement, and both the outer edges of the bottom blade and the top blade have an upward tilt angle, with the upward tilt angle of the outer edge of the second blade being greater than that of the outer edge of the bottom blade.

[0007] Furthermore, the auxiliary dispersing component includes a dispersing motor mounted on the side wall of the material tank, a dispersing shaft coaxially connected to the output shaft of the dispersing motor, and dispersing blades sleeved on the dispersing shaft, wherein the dispersing shaft is installed perpendicular to the wall of the material tank.

[0008] Furthermore, the drive assembly includes a first motor and a second motor mounted on the base, a first drive pulley coaxially connected to the output shaft of the first motor, a first driven pulley sleeved and mounted on the stirring shaft, a second drive pulley coaxially connected to the output shaft of the second motor, and a second driven pulley sleeved and mounted on the main shaft. The first driven pulley is belt-driven connected to the first drive pulley via a first transmission belt, and the second driven pulley is belt-driven connected to the second drive pulley via a second transmission belt.

[0009] Furthermore, the lifting assembly includes a lifting cylinder with its fixed end fixed to the base and a rotating arm fixedly connected to the telescopic end of the lifting cylinder, and the bucket lid is fixedly connected to the rotating arm.

[0010] Furthermore, the discharge port is located at the bottom of the material barrel, and the discharge plug assembly includes a discharge cylinder installed on the barrel wall and a discharge piston fixed to the telescopic end of the discharge cylinder.

[0011] Furthermore, the scraping assembly includes a scraping motor mounted on the barrel cover, a scraping shaft coaxially connected to the output shaft of the scraping motor, a scraping paddle mounted at the end of the scraping shaft, and a scraper mounted at the end of the scraping paddle. The scraping shaft extends from the barrel cover into the material barrel.

[0012] Furthermore, a sampling port is provided at the bottom of the material barrel, and a sampling component is installed at the sampling port. The sampling component includes a sampling cylinder installed on the barrel wall and a rotary plug fixedly connected to the telescopic rod of the sampling cylinder.

[0013] Furthermore, the bottom of the material hopper is provided with multiple equidistant purge holes arranged in a circumferential array. Each purge hole is equipped with a purge assembly, which includes a purge valve seat installed in the purge hole, a purge valve core installed in the purge valve seat, and a purge valve spring installed between the purge valve seat and the purge valve core. Gas is introduced into the purge valve seat, which compresses the purge valve spring. The purge valve spring then lifts the purge valve core, allowing gas to enter the material hopper from the purge hole and disperse the powder material inside the hopper, facilitating material mixing and discharge.

[0014] The beneficial effects of this high-speed powder mixer are: This invention uses a drive component to rotate a stirring component, which crushes and mixes materials through multiple actions such as shearing, collision, and diffusion. Combined with an auxiliary dispersion component, a dual dispersion mechanism is used to stir and mix the materials, which can effectively improve mixing efficiency and mixing quality.

[0015] This invention utilizes an auxiliary dispersing component mounted on the bottom side wall of a material hopper to assist in the dispersion and mixing of materials. The auxiliary dispersing component, mounted at the bottom of the hopper, assists the stirring component in mixing the materials. The auxiliary dispersing component is vertically positioned to disperse and mix the materials from two directions, thereby further improving mixing efficiency and quality.

[0016] This invention features a wall-scraping assembly at the top of the material hopper. A wall-scraping motor drives the wall-scraping paddle to rotate, causing the scraper to move against the inner wall of the hopper and scrape off the material adhering to the inner wall. This reduces material waste, ensures formula accuracy, and facilitates subsequent cleaning of the hopper. Attached Figure Description

[0017] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0018] Figure 1 This is an overall structural diagram of an embodiment of the present utility model; Figure 2 This is a cross-sectional view of the overall structure of an embodiment of this utility model; Figure 3 This is a first sectional view of the overall structure of an embodiment of this utility model; Figure 4 This is a second sectional view of the overall structure of an embodiment of this utility model.

[0019] In the diagram: 1. Base; 2. Drive assembly; 20. First motor; 21. Second motor; 22. First drive pulley; 23. First driven pulley; 24. Second drive pulley; 25. Second driven pulley; 26. First transmission belt; 27. Second transmission belt; 3. Mixing assembly; 30. Mixing shaft; 31. Main shaft; 32. First impeller; 33. Second impeller; 34. Bottom impeller; 4. Material bucket; 5. Lifting assembly; 50. Lifting cylinder; 51. Rotating arm; 52. Guide rod. 53. Limiting block; 54. Mounting plate; 6. Auxiliary dispersion assembly; 60. Dispersion motor; 61. Dispersion shaft; 62. Dispersion blade; 7. Discharge plug assembly; 70. Discharge cylinder; 71. Discharge piston; 8. Wall scraping assembly; 80. Wall scraping motor; 81. Wall scraping shaft; 82. Wall scraping paddle; 83. Scraper; 9. Purge assembly; 90. Purge valve seat; 91. Purge valve core; 92. Purge valve spring; 10. Bucket lid; 11. Sampling assembly; 110. Sampling cylinder; 111. Rotary plug. Detailed Implementation

[0020] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0021] like Figures 1-4 The present invention provides a specific embodiment of a high-speed powder mixer, including a base 1 and a drive assembly 2 mounted on the base 1; a stirring assembly 3, which is connected to the drive assembly 2; a material hopper 4, with its bottom fixed on the base 1 and its top covered with a lid 10, the lid 10 having a feed inlet and an observation port; the stirring assembly 3 extending into the material hopper 4; a lifting assembly 5, with its fixed end fixed on the base 1 and its telescopic end fixedly connected to the lid 10; an auxiliary dispersion assembly 6, mounted on the side wall of the material hopper 4 and extending into the material hopper 4; a discharge plug assembly 7, mounted at the discharge port of the material hopper 4, controlling the opening / closing of the discharge port; and a wall scraping assembly 8, mounted on the lid 10, used to scrape off splashed material inside the material hopper 4. The drive assembly 2 drives the stirring assembly 3 to rotate, achieving mixing and crushing of the material through multiple actions such as shearing, collision, and diffusion. The dual dispersion mechanism of the main dispersion system and the auxiliary dispersion system effectively improves the mixing efficiency and mixing quality.

[0022] See Figure 2The stirring assembly 3 includes a stirring shaft 30, a main shaft 31 mounted on the stirring shaft 30, at least one layer of first blades 32 and second blades 33 mounted on the stirring shaft 30 from bottom to top, and a bottom layer of blades 34 mounted on the main shaft 31. The bottom layer of blades 34 is located below the first blades 32. The bottom layer of blades 34 and the adjacent first blades 32, the two adjacent layers of first blades 32, and the second blades 33 and the adjacent first blades 32 are all vertically arranged. The two ends of the main shaft 31 are rotatably connected to the stirring shaft 30 through bearings. In this embodiment, the first blade 32 is provided with three layers, with adjacent layers of blades staggered at 90°. The stirring shaft 30 drives the multi-layer blades to rotate at high speed, achieving material mixing through multiple actions such as shearing, collision, and diffusion. The outer edge of the bottom blade 34 has an upward tilt angle, which can reduce the accumulation of bottom material and facilitate the upward convection and thorough mixing of powder. The adjacent two layers of first blades 32 are staggered at 90°, and the blades are subjected to uniform force, reducing resonance. The upward tilt angle of the outer edge of the second blade 33 is greater than that of the outer edge of the bottom blade 34, which facilitates the upward convection and thorough mixing of powder and complete discharge. The upward tilt angle guides the material flow, effectively preventing material accumulation and effectively improving mixing efficiency and mixing quality.

[0023] like Figure 3 As shown, the bottom blade 34 has a shearing slope for material on the side facing the direction of movement, the first blade 32 has a shearing slope for material on the side facing the direction of movement, and the second blade 33 has a shearing slope for material on the side facing the direction of movement. The angle between the slope and the horizontal plane is β. In this embodiment, β = 45°. The outer edges of the bottom blade 34 and the second blade 33 are both provided with an upward tilt angle. The upward tilt angle of the outer edge of the second blade 33 is greater than the upward tilt angle of the outer edge of the bottom blade 34. In this embodiment, all blades are inclined at 45° on the side facing the direction of movement, and the sharp ends are rounded to accelerate the longitudinal movement of materials and improve mixing efficiency. The blades transmit torque radially to the main shaft 31 using a flat section, and are secured axially with a locking nut at the end of the main shaft 31 for easy blade replacement. Except for the bottom blade 34, each layer of blades consists of blades and spacer rings. By setting the side of the blades facing the direction of movement to be inclined, the crushing and mixing of materials can be achieved, which can effectively improve mixing efficiency and mixing quality.

[0024] See Figure 3The auxiliary dispersion component 6 includes a dispersion motor 60 installed on the bottom side wall of the material tank 4, a dispersion shaft 61 coaxially connected to the output shaft of the dispersion motor 60, and dispersion blades 62 sleeved on the dispersion shaft 61. The dispersion shaft 61 is installed perpendicular to the wall of the material tank 4. The dispersion blades 62 are two-bladed flat paddles. When the dispersion motor 60 works, it drives the dispersion shaft 61 to rotate, which in turn drives the dispersion blades 62 to rotate and shear and disperse the material. The dispersion shaft 61 is rotatably connected to the wall of the material tank 4 through a bearing. The dispersion shaft is installed perpendicular to the wall of the material tank 4. By simultaneously dispersing and mixing the material in the vertical and horizontal directions through the stirring component 3 and the auxiliary dispersion component 6, the mixing efficiency and mixing quality can be effectively improved. A cooling water jacket is provided on the bearing seat. The cooling water jacket is provided with an inlet and an outlet. Cooling water is circulated into the cooling jacket to cool the equipment and effectively improve the service life of the auxiliary dispersion component 6.

[0025] like Figure 2 and Figure 3 As shown, the drive assembly 2 includes a first motor 20 and a second motor 21 mounted on the base 1, a first drive pulley 22 coaxially connected to the output shaft of the first motor 20, a first driven pulley 23 sleeved on the stirring shaft 30, a second drive pulley 24 coaxially connected to the output shaft of the second motor 21, and a second driven pulley 25 sleeved on the main shaft 31. The first driven pulley 23 is belt driven connected to the first drive pulley 22 via a first transmission belt 26, and the second driven pulley 25 is belt driven connected to the second drive pulley 24 via a second transmission belt 27. The first motor 20 operates, driving the first drive pulley 22 to rotate, which in turn drives the first driven pulley 23 to rotate via the first transmission belt 26, thereby driving the stirring shaft 30 to rotate, which in turn drives the first blade 32 and the second blade 33 to shear and disperse the material; the second motor 21 operates, driving the second drive pulley 24 to rotate, which in turn drives the second driven pulley 25 to rotate via the second transmission belt 27, which in turn drives the main shaft 31 to rotate, which in turn drives the bottom blade 34 to shear and disperse the material at the bottom of the material barrel 4.

[0026] See Figure 2The lifting assembly 5 includes a lifting cylinder 50 with its fixed end fixed to the base 1 and a rotating arm 51 fixedly connected to the telescopic end of the lifting cylinder 50. The barrel lid 10 is fixedly connected to the rotating arm 51. The barrel lid 10 can be automatically raised and lowered. When the lifting cylinder 50 is working, it drives the rotating arm 51 to rise and fall, thereby raising and lowering the barrel lid 10. This facilitates cleaning of the material barrel 4 and changing the formula. A guide rod 52 is also provided. A mounting plate 54 is fixed to the top of the lifting cylinder 50. The mounting plate 54 has two through holes. The lifting rod of the lifting cylinder 50 and the guide rod 52 pass through the two through holes respectively. The end of the guide rod 52 is fixedly connected to the rotating arm 51. A limiter for the guide rod 52 is installed on the cylinder of the lifting cylinder 50. The limiting block 53 is rotatably connected to the cylinder of the lifting cylinder 50. After the bucket lid 10 is raised to the position, the limiting block 53 is rotated to the bottom of the guide rod 52 to limit the guide rod 52 and limit the rotating arm 51 which is fixedly connected to the guide rod 52. This achieves the limitation and locking of the bucket lid 10, which is then used for cleaning and maintenance, improving the safety of the equipment. It is used to prevent the bucket lid 10 from falling due to the failure of the lifting cylinder 50, effectively avoiding accidents and improving the safety of the equipment.

[0027] like Figure 2 As shown, the discharge port is located at the bottom of the material barrel 4, and the angle between the discharge port and the bottom of the material barrel 4 is α, where α = 10°. Setting the discharge port to be inclined downward facilitates discharge and effectively avoids material residue. The discharge plug assembly 7 includes a discharge cylinder 70 installed on the wall of the material barrel 4 and a discharge piston 71 fixed to the extension end of the discharge cylinder 70. The operation of the discharge cylinder 70 drives the discharge piston 71 to extend / retract, thereby controlling the opening / closing of the discharge port. It can automatically control the discharge and has a high degree of automation.

[0028] See Figure 2 The scraping assembly 8 includes a scraping motor 80 mounted on the barrel cover 10, a scraping shaft 81 coaxially connected to the output shaft of the scraping motor 80, a scraping paddle 82 mounted at the end of the scraping shaft 81, and a scraper 83 mounted at the end of the scraping paddle 82. The scraping shaft 81 extends from the barrel cover 10 into the material barrel 4. A temperature probe is installed at the center of the scraping shaft 81 to monitor the temperature of the material in the upper part of the material barrel 4. In this embodiment, the scraping paddle 82 is provided with three blades, which are equidistantly distributed in a circumferential array. A scraper 83 is installed at the end of each of the three blades. The scraper 83 is set in contact with the inner wall of the material barrel 4. When the scraping motor 80 is working, it drives the scraping paddle 82 to rotate, which drives the scraper 83 to move and scrape off the material splashed on the inner wall of the material barrel 4.

[0029] like Figure 4As shown, a sampling port is provided at the bottom of the material barrel 4. The sampling port is inclined to facilitate sampling and prevent residue. The angle between the sampling port and the bottom of the material barrel 4 is b, where b = 10°. A sampling component 11 is installed at the sampling port. The sampling component 11 includes a sampling cylinder 110 installed on the wall of the material barrel 4 and a rotating plug 111 fixedly connected to the telescopic rod of the sampling cylinder 110. The bottom of the material barrel 4 is equipped with a nitrogen purging function and a bottom discharge purging design. To facilitate discharge, multiple purging components 9 are evenly distributed in a circular array at the bottom of the material barrel 4. Multiple purging holes are evenly distributed in a circular array at the bottom of the material barrel 4. The purging components 9 are installed in the corresponding purging holes. The purging components 9 include a purging valve seat 90 installed in the purging hole, a purging valve core 91 installed in the purging valve seat 90, and a purging valve spring 92 installed between the purging valve seat 90 and the purging valve core 91. Air is introduced into the purging valve seat 90 to purge the purging valve spring. The compression of 92 and the elastic force of the purge valve spring 92 push the purge valve core 91 up, allowing gas to enter the material barrel 4 through the purge hole, which disperses the material in the material barrel 4, facilitating material mixing and discharge, effectively preventing material residue, and on the other hand, effectively improving the mixing effect of the material. In this embodiment, the bottom of the material barrel 4 is provided with six purge holes, and the purge assembly 9 is provided with six evenly distributed holes, which can effectively reduce the material residue at the bottom discharge. In the normal non-ventilated state, the purge valve spring 92 pulls the purge valve core 91 back and locks it, closing the purge hole.

[0030] In this embodiment, the ratio of barrel height to inner diameter of barrel 4 is 1.0666:1. Given that the powder material has good flowability before fiberization, a larger height-to-diameter ratio is chosen for barrel 4 to increase the axial diffusion of the powder and avoid powder stratification and dead flow corners. To facilitate the addition of materials into barrel 4, a feeding hopper is provided at the feed inlet on the barrel cover 10. A dust removal port is also provided on the barrel cover 10, and a dust removal filter is installed at the dust removal port to collect dust and prevent environmental pollution. On the other hand, it can also avoid material waste and ensure the mixing ratio.

[0031] It should be understood that the specific embodiments described above are only for explaining the present invention and are not intended to limit the present invention. Obvious variations or modifications derived from the spirit of the present invention are still within the protection scope of the present invention.

Claims

1. A high-speed powder mixer, characterized in that, include: Base (1) and drive assembly (2) mounted on the base (1); The stirring assembly (3) is connected to the driving assembly (2) in a transmission manner; The material bucket (4) is fixed at the bottom to the base (1) and covered with a bucket lid (10) at the top. The stirring assembly (3) extends into the material bucket (4). The lifting assembly (5) has a fixed end fixed to the base (1) and a telescopic end fixedly connected to the bucket lid (10); An auxiliary dispersion component (6) is installed on the side wall of the material barrel (4) and extends into the material barrel (4); The discharge plug assembly (7) is installed at the discharge port of the material bucket (4) to control the opening / closing of the discharge port; A scraper assembly (8) is installed on the bucket lid (10) for scraping off material splashed on the inner wall of the bucket (4).

2. The high-speed powder mixer according to claim 1, characterized in that, The stirring assembly (3) includes a stirring shaft (30), a main shaft (31) sleeved on the stirring shaft (30), at least one first blade (32) and a second blade (33) sleeved on the stirring shaft (30) from bottom to top, and a bottom blade (34) sleeved on the main shaft (31). The bottom blade (34) is located below the first blade (32). The bottom blade (34) and the adjacent first blade (32), the two adjacent first blades (32), and the second blade (33) and the adjacent first blade (32) are all arranged perpendicularly.

3. A high-speed powder mixer according to claim 2, characterized in that, The bottom blade (34) has a shearing slope for material on the side facing the direction of movement. The first blade (32) has a shearing slope for material on the side facing the direction of movement. The second blade (33) has a shearing slope for material on the side facing the direction of movement. The outer edges of the bottom blade (34) and the second blade (33) are both provided with an upward tilt angle. The upward tilt angle of the outer edge of the second blade (33) is greater than the upward tilt angle of the outer edge of the bottom blade (34).

4. A high-speed powder mixer according to claim 3, characterized in that, The auxiliary dispersion component (6) includes a dispersion motor (60) installed on the bottom side wall of the material barrel (4), a dispersion shaft (61) coaxially connected to the output shaft of the dispersion motor (60), and a dispersion blade (62) sleeved on the dispersion shaft (61). The dispersion shaft (61) is installed perpendicular to the barrel wall of the material barrel (4).

5. A high-speed powder mixer according to claim 4, characterized in that, The drive assembly (2) includes a first motor (20) and a second motor (21) mounted on the base (1), a first drive pulley (22) coaxially connected to the output shaft of the first motor (20), a first driven pulley (23) sleeved on the stirring shaft (30), a second drive pulley (24) coaxially connected to the output shaft of the second motor (21), and a second driven pulley (25) sleeved on the main shaft (31). The first driven pulley (23) is belt driven connected to the first drive pulley (22) via a first transmission belt (26), and the second driven pulley (25) is belt driven connected to the second drive pulley (24) via a second transmission belt (27).

6. A high-speed powder mixer according to claim 5, characterized in that, The lifting assembly (5) includes a lifting cylinder (50) with its fixed end fixed on the base (1) and a rotating arm (51) fixedly connected to the telescopic end of the lifting cylinder (50). The bucket lid (10) is fixedly connected to the rotating arm (51).

7. A high-speed powder mixer according to claim 6, characterized in that, The discharge port is located at the bottom of the material barrel (4), and the discharge plug assembly (7) includes a discharge cylinder (70) installed on the barrel wall of the material barrel (4) and a discharge piston (71) fixed to the telescopic end of the discharge cylinder (70).

8. A high-speed powder mixer according to claim 7, characterized in that, The scraping assembly (8) includes a scraping motor (80) mounted on the bucket cover (10), a scraping shaft (81) coaxially connected to the output shaft of the scraping motor (80), a scraping paddle (82) mounted at the end of the scraping shaft (81), and a scraper (83) mounted at the end of the scraping paddle (82). The scraping shaft (81) extends out of the bucket cover (10) and into the material bucket (4).

9. A high-speed powder mixer according to claim 7, characterized in that, The bottom of the material bucket (4) is also provided with a sampling port, and a sampling component (11) is installed at the sampling port. The sampling component (11) includes a sampling cylinder (110) installed on the wall of the material bucket (4) and a rotating plug (111) fixedly connected to the telescopic rod of the sampling cylinder (110).

10. A high-speed powder mixer according to claim 7, characterized in that, The bottom of the material barrel (4) is provided with multiple purge holes arranged in a circumferential array at equal intervals. Each purge hole is equipped with a purge assembly (9). The purge assembly (9) includes a purge valve seat (90) installed in the purge hole, a purge valve core (91) installed in the purge valve seat (90), and a purge valve spring (92) installed between the purge valve seat (90) and the purge valve core (91). Gas is introduced into the purge valve seat (90) to compress the purge valve spring (92). The purge valve spring (92) lifts the purge valve core (91), so that the gas enters the material barrel (4) from the purge hole and disperses the powder material in the material barrel (4), which facilitates the mixing and discharge of the material.

Images