Powder mixing device and discharge assembly

Abstract

The utility model discloses a kind of powder mixing equipment and unloading assembly, unloading assembly includes: unloading bin, the unloading bin is respectively set with unloading inlet and unloading outlet in opposite side wall, the unloading inlet is connected with the discharge port, to make the unloading bin with the material mixing cavity of the powder mixing equipment be communicated;Push rod, unloading bin's unloading outlet place is detachably installed with unloading valve, and one end of the push rod is welded with unloading valve;Push rod mounting seat, unloading power piece is installed on the push rod mounting seat, the other end of the push rod is connected with the unloading power piece, and unloading valve is closed or opened the unloading outlet under the action of the unloading power piece;Material blocking scraper, the material blocking scraper is installed in the unloading valve, and with unloading valve synchronous action;Material cleaning assembly, the material cleaning assembly is installed in the unloading bin, and material is discharged from the unloading port of unloading bin when starting. Improve the effect of unloading and cleaning.

Description

Technical Field

[0001] This utility model relates to the field of mixing equipment technology, specifically to a powder mixing equipment and unloading assembly. Background Technology

[0002] In technical scenarios such as flour mixing, where powder and solution need to be mixed, existing technologies mostly use powder mixing equipment for mixing.

[0003] In existing technologies, the unloading components of powder mixing equipment are mostly of the slide-plate type, flap-plate type, or direct-insertion type. However, the slide-plate type suffers severe wear after prolonged operation, leading to leakage. Wear also causes debris from the friction components to fall into the material, affecting product quality. The flap-plate type, with its end-to-end sealing, is prone to material accumulation on the sealing surface due to frequent unloading, resulting in poor sealing, material leakage, environmental pollution, and material waste. Cleaning is also inconvenient, easily creating unsanitary corners. The direct-insertion type, with its conical-to-conical sealing, requires high machining precision, is difficult to manufacture, and has strict requirements on material flowability. Materials with poor flowability tend to accumulate on the sealing surface, causing poor sealing, material leakage, environmental pollution, and material waste. Utility Model Content

[0004] Therefore, this utility model provides a powder mixing device and a discharge assembly to solve at least one of the above-mentioned technical problems.

[0005] To achieve the above objectives, the present invention provides the following technical solution: A discharge assembly for a powder mixing device, the discharge assembly comprising: The unloading hopper has an unloading inlet and an unloading outlet on opposite side walls. The unloading inlet is connected to the outlet so that the unloading hopper is connected to the material mixing chamber of the powder mixing equipment. A push rod is provided, and a discharge valve disc is detachably installed at the discharge outlet of the discharge bin body. One end of the push rod is welded to the discharge valve disc. A push rod mounting base is provided, on which a discharge power component is mounted. The other end of the push rod is connected to the discharge power component, and the discharge valve flap is closed or opened by the discharge power component. A material-blocking scraper is installed on the unloading valve disc and moves synchronously with the unloading valve disc. A material cleaning component is installed in the unloading hopper and discharges material from the unloading port of the unloading hopper when it is started.

[0006] In some embodiments, the unloading power component is an unloading cylinder, and the telescopic end of the unloading cylinder is connected to the unloading valve disc.

[0007] In some embodiments, the cleaning assembly includes: Cleaning power components; The cleaning scraper is connected to the cleaning power component and moves within the unloading hopper under the drive of the cleaning power component.

[0008] In some embodiments, the material cleaning power component is a material cleaning cylinder, the cylinder barrel of the material cleaning cylinder is installed in the unloading bin body, and the end of its cylinder rod away from the cylinder barrel is located inside the unloading bin body; the material cleaning scraper is installed at the end of the cylinder rod of the material cleaning cylinder away from the cylinder barrel, and moves in the unloading bin body under the drive of the material cleaning cylinder.

[0009] In some embodiments, the unloading assembly further includes: A cylinder cover is mounted on the push rod mounting base, and the unloading cylinder is disposed inside the cylinder cover.

[0010] In some embodiments, the unloading assembly further includes: A blowing air pipe is installed on the push rod mounting base, and the air outlet of the blowing air pipe is located inside the unloading bin.

[0011] In some embodiments, the unloading assembly further includes: The hopper cover is detachably installed on the upper part of the unloading hopper via a quick-opening handwheel.

[0012] The present invention also provides a powder mixing device, including the unloading component as described above.

[0013] In one or more of the above specific embodiments, the unloading component for powder mixing equipment provided by this utility model improves mixing efficiency through the conformal design of the unloading valve and the mixing chamber; the sealed structure design prevents material splashing, ensuring the cleanliness of the material and the safety of the user, making it safer and more efficient; the soft material side of the cleaning scraper is attached to the inner wall of the unloading chamber, completing the cleaning of residual material before the chamber door is closed; the unloading and cleaning are automatically completed through the coordinated action of the cleaning cylinder and the unloading cylinder; the cleaning scraper and the blowing air pipe form a dual cleaning structure, cleaning residual material by mechanical scraping and gas blowing respectively, improving the unloading and cleaning effect. Attached Figure Description

[0014] To more clearly illustrate the embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0015] The structures, proportions, sizes, etc. illustrated in this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed herein, and are not intended to limit the implementation conditions of this utility model. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and objectives that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model.

[0016] Figure 1 This is one of the structural schematic diagrams of the powder mixing equipment provided by this utility model; Figure 2 This is the second structural schematic diagram of the powder mixing equipment provided by this utility model; Figure 3 This is the third structural schematic diagram of the powder mixing equipment provided by this utility model; Figure 4 This is the fourth structural schematic diagram of the powder mixing equipment provided by this utility model; Figure 5 This is the fifth structural schematic diagram of the powder mixing equipment provided by this utility model; Figure 6 This is the sixth structural schematic diagram of the powder mixing equipment provided by this utility model; Figure 7 This is one of the structural schematic diagrams of the unloading component in the powder mixing equipment provided by this utility model; Figure 8 This is the second schematic diagram of the unloading component in the powder mixing equipment provided by this utility model; Figure 9 This is the third schematic diagram of the unloading component in the powder mixing equipment provided by this utility model; Figure 10 This is the fourth schematic diagram of the unloading component in the powder mixing equipment provided by this utility model; Figure 11 This is the fifth schematic diagram of the unloading component in the powder mixing equipment provided by this utility model; Figure 12 This is the sixth schematic diagram of the unloading component in the powder mixing equipment provided by this utility model; Figure 13This is the seventh schematic diagram of the unloading component in the powder mixing equipment provided by this utility model.

[0017] Explanation of reference numerals in the attached figures: 1-Frame assembly, 2-Transmission assembly, 3-Unloading assembly, 4-Mixing device, 5-Mixing tank; 6-Adjustable pressurized spray assembly, 7-Drive component, 8-Control system; 31-Unloading bin body, 32-Cleansing scraper, 33-Push rod mounting seat, 34-Unloading valve disc, 35-Cylinder guard; 36-Blocking scraper, 37-Hopper cover, 38-Cleansing cylinder, 39-Blowing air pipe, 310-Unloading cylinder; 311 - Quick-opening handwheel. Detailed Implementation

[0018] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0019] In one specific implementation, such as Figures 1-6 As shown, the powder mixing equipment provided by this utility model includes a frame assembly, a mixing tank, a mixing device, and a transmission assembly; wherein, the mixing tank is installed on the frame assembly, the inner cavity of the mixing tank forms a material mixing chamber, and the side wall of the mixing tank has a discharge port communicating with the material mixing chamber; the mixing element of the mixing device is disposed in the material mixing chamber, the power output end of the transmission assembly is connected to the mixing device, and the power input end of the transmission assembly is connected to the drive element.

[0020] Furthermore, the powder mixing equipment also includes a control system. The control system controls the opening of the butterfly valve at the feed inlet to allow various materials in the upper hopper to enter the mixing tank. After the valve is closed, the control system controls the stirring device to start, and the various materials are pre-mixed for about 5 seconds. After mixing is completed, the adjustable pressurized spray assembly is controlled to spray the solution for 10-15 seconds. After spraying stops, the stirring device continues to stir for about 15 seconds. The control system opens the unloading assembly to unload for about 15 seconds. The stirring device stops, and the cleaning cylinder works to clean the material. After the work is completed, the unloading cylinder closes the unloading hopper door.

[0021] During operation, the drive component (such as a motor) transmits power to the mixing device through a transmission assembly. The mixing component rotates within the material mixing chamber, shearing and mixing the input materials (such as flour and water). After mixing, the material is discharged through the outlet of the mixing tank. The frame assembly provides overall support for the equipment. The cooperation between the mixing device and the transmission assembly ensures uniform mixing of the powder. The modular structure facilitates assembly and maintenance. The frame assembly can be a welded steel frame or a bolted assembly frame. The drive component can be a hydraulic motor or an electric motor, and the transmission assembly can use gear transmission or belt transmission, etc.

[0022] Specifically, the bottom of frame component 1 is equipped with perforated feet, which can be fixed to the ground. Figure 1 Taking the direction shown as an example, the upper surface of the top right side of frame assembly 1 is equipped with a welded nut, which is connected and fixed to the mixing tank 5 by bolts. The lower surface of the top right side of frame assembly 1 is also equipped with a welded nut, which is connected and fixed to the transmission assembly 2 by bolts. The outer circle of transmission assembly 2 is equipped with an O-ring, which fits with the inner wall of the bottom circular hole of mixing tank 5 for positioning and sealing. Transmission assembly 2 is equipped with a drive shaft, the upper end of which is installed and fitted with the stirring device 4 by threads. The lower end of transmission assembly 2 is equipped with a pulley, which is connected to the drive component 7 by a belt. The drive component 7 is installed in the lower left part of the interior of frame assembly 1 and is fixed by screws. Adjustable pressurized spray assembly 6 is installed on the upper part of mixing tank 5 and fixed by buckle connection. Adjustable pressurized spray assembly 6 is equipped with four evenly distributed nozzles that extend into the interior of mixing tank 5 to achieve directional, quantitative, and timed spraying of solution. The other end of the spray pipeline is connected to the solution tank through a hose. The upper center inlet of adjustable pressurized spray assembly 6 is also provided. The unloading assembly 3 is installed at the lower right side of the mixing tank 5. The unloading assembly 3 is fixed to the mixing tank 5 with bolts. The unloading assembly 3 is equipped with a unloading valve flap, which is sealed to the mixing tank 5 with an O-ring to ensure its sealing performance during long-term operation. The control system 8 is welded to the upper left side of the frame assembly 1. Various control elements are installed inside the control system 8, and control lines and air pipes are connected to the various actuators through the inside of the frame.

[0023] In a specific application scenario, taking a noodle mixer as an example, for use in noodle mixing systems in the food industry, please refer to [link / reference needed]. Figures 1-6The powder mixing equipment includes a frame assembly 1, a transmission assembly 2, a discharge assembly 3, a mixing device 4, a mixing drum 5, an adjustable pressurized spray assembly 6, a drive assembly 7, and a control system 8. The mixing drum 5 has a mounting hole for the transmission assembly 2 at its bottom center, a discharge port on its right bottom side, and a mounting port for the adjustable pressurized spray assembly 6 at its top. The interior of the mixing drum 5 is a mixing chamber used to hold and mix flour flakes. Flour enters the mixing chamber through the inlet hole on the adjustable pressurized spray assembly 6, is mixed by the mixing device 4, and then discharged to the outside of the drum through the discharge port. The bottom of the mixing drum has evenly distributed threaded bottom holes, which are fixed to the frame assembly 1 with screws. The mixing device 4 is installed at one end of the transmission assembly 2 and locked with threads. The other end of the transmission assembly 2 is equipped with a pulley, which is connected to a pulley installed on the drive assembly 7 via a belt. The drive assembly 7 is installed inside the lower left side of the frame assembly 1, fixed with screws, and has an adjustable tension structure. The adjustable pressurized spray assembly 6 is installed on top of the mixing tank 5. An O-ring is provided on the top of the mixing tank 5, and the adjustable pressurized spray assembly 6 is sealed to the mixing tank 5 via the O-ring. Externally, it is fixed by a snap fastener connection. The adjustable pressurized spray assembly 6 has a feed inlet at its center, which can be connected to a hopper via a flexible connector for feeding. The adjustable pressurized spray assembly 6 has a spray pipe, and four evenly distributed solid conical nozzles are installed inside the assembly. The nozzles are connected to the pipe, and the spray areas of the four solid conical nozzles are uniformly tangent, ensuring thorough contact with the flour. A control valve is provided at the other end of the spray pipe, and the valve is connected to the spray pressurization tank via a pipeline. The discharge assembly 3 is installed on the bottom right side of the mixing tank 5 and has a discharge port. The discharge assembly 3 has an O-ring for sealing the discharge port and is fixed by screws.

[0024] This utility model mainly provides a discharge assembly to improve the cleanliness of the sealing surface and prevent powder or liquid leakage. Figures 7-13As shown, the powder mixing equipment also includes a discharge assembly 3 installed at the discharge port of the mixing tank. The discharge assembly 3 includes a discharge bin, a push rod, a push rod mounting base, a baffle scraper, and a cleaning assembly. The discharge bin has a discharge inlet and a discharge outlet on opposite side walls. The discharge inlet is connected to the discharge outlet so that the discharge bin is connected to the material mixing chamber. A discharge valve is detachably installed at the discharge outlet of the discharge bin, and one end of the push rod is welded to the discharge valve. It should be understood that the discharge valve is a key component for opening and closing the discharge port at the bottom of the bin. When the discharge valve is closed, there is no gap at the discharge port of the bin (referring to the mixing bin), and the integrity of the inner diameter circle of the discharge bin is maintained. One end of the discharge valve is an arc surface with the same size as the inner diameter of the bin. A discharge cylinder is installed on the push rod mounting base. The other end of the push rod is connected to the discharge cylinder. The discharge valve flap closes or opens the discharge outlet under the action of the discharge cylinder. Specifically, one end of the push rod is welded to the discharge valve flap, and the other end is connected to the discharge cylinder. The discharge cylinder is installed on the left side of the back of the push rod mounting base and fixed with screws. The discharge cylinder moves in the opposite direction. An oil-free bearing is installed in the center of the push rod mounting base, allowing the push rod to move smoothly within the mounting base. The discharge cylinder moves in the direction of the silo. During operation, the discharge cylinder extends out of the valve flap and disengages from the silo body, and retracts to close the valve flap and silo body. The cylinder rod cannot contact the material in the silo body, preventing oil contamination of the material and affecting food safety. The baffle scraper is installed on the discharge valve flap and moves synchronously with it. The cleaning assembly is installed on the discharge silo body and discharges the material from the discharge port of the discharge silo body upon startup. Specifically, the baffle scraper is circular and installed on the back of the discharge valve disc to prevent material from splashing onto the oil-free bearing between the discharge valve disc and the push rod mounting seat during discharge. The cleaning scraper is installed at the upper end of the discharge port of the bin. After surface discharge, a certain amount of residual material will adhere to the discharge valve disc and the sealing surface of the bin. The purpose of the scraper is to clean the sealing surface and scrape off the residual material to ensure the sealing of the discharge valve disc and the bin. After the discharge valve disc detaches from the bin, the material is discharged. After the material is discharged, the cleaning scraper moves down to remove the residual material and returns to its original position, and the discharge valve disc closes.

[0025] During operation, when unloading, the unloading cylinder drives the unloading valve to open the unloading outlet. Material enters the unloading hopper from the mixing tank through the unloading inlet and is then discharged through the unloading outlet. The baffle scraper moves with the valve to scrape off residual material on the valve surface. After unloading is completed, the cleaning component is activated to clean residual material from the inner wall of the hopper. In this way, the cooperation between the unloading valve and the cylinder enables rapid opening and closing of the unloading port, the baffle scraper reduces material residue, and the cleaning component prevents material accumulation on the inner wall of the hopper, thus improving unloading efficiency and cleanliness.

[0026] The aforementioned unloading cylinder, as a driving component for linear motion, can also be replaced by an electric push rod, suitable for scenarios without an air source; the material of the baffle scraper can be food-grade silicone instead of rubber to meet the hygiene requirements of the pharmaceutical and food industries; the unloading bin can adopt a conical bottom design instead of a straight wall design, utilizing gravity to assist in material discharge.

[0027] The cleaning assembly includes a cleaning cylinder and a cleaning scraper. The cylinder of the cleaning cylinder is installed in the unloading bin, and the end of the cylinder rod away from the cylinder is located inside the unloading bin. The cleaning scraper is installed in the end of the cylinder rod of the cleaning cylinder away from the cylinder and moves in the unloading bin under the drive of the cleaning cylinder.

[0028] During operation, the cylinder rod of the cleaning cylinder extends and retracts, driving the cleaning scraper to reciprocate along the inner wall of the unloading hopper, scraping the attached residual material to the unloading outlet for discharge. This mechanical scraping action of the scraper thoroughly cleans the material from the inner wall of the hopper, preventing cross-contamination, and is particularly suitable for sticky powders or materials prone to clumping. The cleaning cylinder can be a servo electric cylinder to achieve precise control of the scraper's stroke; the cleaning scraper can adopt a segmented structure instead of a one-piece design to adapt to irregularly shaped unloading hoppers; a vibrator can be added to assist in cleaning, working in conjunction with the scraper to improve the effect.

[0029] Furthermore, the unloading assembly also includes a cylinder guard, a blowing pipe, and a bin cover; wherein, the cylinder guard is mounted on the push rod mounting base, the unloading cylinder is disposed inside the cylinder guard, the blowing pipe is mounted on the push rod mounting base, and the outlet of the blowing pipe is located inside the unloading bin, and the bin cover is detachably mounted on the upper part of the unloading bin via a quick-opening handwheel.

[0030] In this way, the cylinder guard protects the unloading cylinder from dust contamination, thereby extending the cylinder's service life; the blowing air pipe sprays air into the bin during unloading or cleaning, dispersing fine residual materials. The blowing air pipe and the cleaning scraper form a dual cleaning structure of mechanical and pneumatic cleaning, improving cleaning efficiency; when maintenance is required, the bin cover can be opened by loosening the quick-release handwheel to maintain the internal components. The quick-release handwheel enables quick disassembly and assembly of the bin cover, reducing maintenance difficulty.

[0031] The unloading assembly includes an unloading bin body 31, a cleaning scraper 32, a push rod mounting base 33, an unloading valve disc 34, a cylinder guard 35, a baffle scraper 36, a bin cover 37, a cleaning cylinder 38, a blowing air pipe 39, an unloading cylinder 310, and a quick-opening handwheel 311. The left side of the unloading bin body 31 is connected and fixed to the mixing bin body, and the push rod mounting base 33 is installed on the right side. The unloading valve disc 34 is installed on the push rod mounting base 33, and the baffle scraper 36 is installed on its back. The upper part of the unloading bin body 31... The material cleaning cylinder 38 is installed, the material cleaning scraper 32 is connected to the material cleaning cylinder 38, and one side intersects with the unloading bin 31; the material cleaning cylinder 38 is installed on the outside of the push rod mounting base 33, the material cleaning cylinder 38 is connected to the unloading valve 34, and the cylinder cover 35 is installed on the outside of the push rod mounting base 33; the blowing air pipe 39 is installed on the push rod mounting base 33; the bin cover 37 is fixed to the upper part of the unloading bin 31 by the quick-opening handwheel 311.

[0032] Specifically, the left side of the unloading chamber 31 is provided with a threaded countersunk hole, which is detachably fixed to the mixing chamber by screws. An O-ring is provided in front of the unloading valve disc 34 for a sealing fit with the mixing chamber. One side of the cleaning scraper 32 is made of soft material to clean residual material inside the unloading chamber 31 before the chamber door is closed. The blowing air pipe 39 is installed at a specific position on the lower part of the outer circle of the push rod mounting base 33 for blowing and cleaning the unloading valve disc 34. A discharge pipe is provided at the bottom of the unloading chamber 31 for connecting to the receiving device below. The unloading valve disc 34 and the mixing chamber adopt a contour-following design to improve mixing efficiency.

[0033] In the specific application scenarios mentioned above, using a noodle mixer as an example, please continue to refer to... Figures 7-13 The left side of the unloading hopper 31 is connected and fixed to the mixing hopper. A push rod mounting base 33 is installed on the right side of the unloading hopper 31, and the unloading valve 34 is mounted on the push rod mounting base 33. A baffle scraper 36 is installed on the back of the unloading valve 34. A cleaning cylinder 39 is installed on the upper part of the unloading hopper 31, and a cleaning scraper 32 is connected to the cleaning cylinder 39, with one side of the cleaning scraper 32 intersecting with the unloading hopper 31. A cleaning cylinder 38 is installed outside the push rod mounting base 33, and the cleaning cylinder 38 is connected to the unloading valve 34. A cylinder guard 35 is installed outside the push rod mounting base 33 to protect the cleaning cylinder 38. A blowing air pipe 39 is installed on the push rod mounting base 33 to blow and clean the unloading valve 34, ensuring the sealing of the unloading valve 34 when it closes next. A cover 37 is installed on the upper part of the unloading bin body 31. The cover 37 is fixed to the unloading bin body 31 by a quick-opening handwheel 311.

[0034] Specifically, the unloading assembly includes an unloading bin body 31, a cleaning scraper 32, a push rod mounting base 33, an unloading valve 34, a cylinder guard 35, a baffle scraper 36, a bin cover 37, a cleaning cylinder 38, a blowing air pipe 39, an unloading cylinder 310, and a quick-opening handwheel 311. This unloading assembly is used in material mixing equipment in the chemical, pharmaceutical, and food industries. The left side of the unloading bin body 31 has a threaded countersunk hole for connection and fixation to the mixing bin body with screws. The right side of the unloading bin body 31 is fitted with a push rod mounting base 33 via screws. The unloading valve 34 is mounted at the center of the push rod mounting base 33. A baffle scraper 36 is mounted on the back of the unloading valve 34. The baffle scraper 36 is used to clean residual material on the push rod mounting base 33. An O-ring is provided in front of the unloading valve 34 to achieve a seal with the mixing bin body. A cleaning cylinder 39 is installed on the upper left side of the unloading hopper 31. A cleaning scraper 32 is connected and fixed to the cleaning cylinder 39 on the upper left side inside the unloading hopper 31. One side of the cleaning scraper 32 is made of soft material and intersects with the unloading hopper 31 to clean residual material before the hopper door closes. A cleaning cylinder 38 is installed on the outside of the push rod mounting base 33 and fixed with screws. The cleaning cylinder 38 is connected to the unloading valve 34 to realize the opening and closing of the unloading valve. A cylinder cover 35 is installed on the outside of the push rod mounting base 33 to protect the cleaning cylinder 38. A blowing air pipe 39 is installed at a specific position on the lower part of the outer circle of the push rod mounting base 33 to blow and clean the unloading valve 34 to ensure the sealing of the unloading valve 34 when it closes next. The upper part of the unloading hopper 31 is equipped with a hopper cover 37, which is fixed to the unloading hopper 31 by a quick-opening handwheel 311, facilitating cleaning and maintenance inside the unloading hopper 31. The lower part of the unloading hopper 31 is provided with a discharge pipe, which facilitates connection to the material receiving device below.

[0035] In this way, the unloading assembly improves its sealing performance through the design of the residual material scraper and O-ring, reducing environmental pollution and material waste; the direct plug design of the unloading valve disc and the conformal design of the mixing chamber improve the mixing efficiency; the sealed structure design prevents material splashing, ensuring the cleanliness of the material and the safety of the user, making it safer and more efficient; and the automated control improves production efficiency and reduces labor costs.

[0036] The above specific embodiments further illustrate the purpose, technical solution, and beneficial effects of this utility model. It should be understood that the above are only specific embodiments of this utility model and are not intended to limit the scope of protection of this utility model. Any modifications, equivalent substitutions, improvements, etc., made on the basis of the technical solution of this utility model should be included within the scope of protection of this utility model.

Claims

1. A discharge assembly for use in a powder mixing device, characterized in that, The unloading assembly includes: The unloading hopper has an unloading inlet and an unloading outlet on opposite side walls. The unloading inlet is connected to the outlet of the material mixing chamber of the powder mixing equipment, so that the unloading hopper is connected to the material mixing chamber. A push rod is provided, and a discharge valve disc is detachably installed at the discharge outlet of the discharge bin body. One end of the push rod is welded to the discharge valve disc. A push rod mounting base is provided, on which a discharge power component is mounted. The other end of the push rod is connected to the discharge power component, and the discharge valve flap is closed or opened by the discharge power component. A material-blocking scraper is installed on the unloading valve disc and moves synchronously with the unloading valve disc. A material cleaning component is installed in the unloading hopper and discharges material from the unloading port of the unloading hopper when it is started.

2. The unloading assembly according to claim 1, characterized in that, The unloading power component is an unloading cylinder, and the telescopic end of the unloading cylinder is connected to the unloading valve disc.

3. The unloading assembly according to claim 1, characterized in that, The cleaning assembly includes: Cleaning power components; The cleaning scraper is connected to the cleaning power component and moves within the unloading hopper under the drive of the cleaning power component.

4. The unloading assembly according to claim 3, characterized in that, The material cleaning power component is a material cleaning cylinder. The cylinder barrel of the material cleaning cylinder is installed in the unloading bin body, and the end of its cylinder rod away from the cylinder barrel is located inside the unloading bin body. The material cleaning scraper is installed at the end of the cylinder rod of the material cleaning cylinder away from the cylinder barrel, and moves in the unloading bin body under the drive of the material cleaning cylinder.

5. The unloading assembly according to claim 2, characterized in that, The unloading assembly also includes: A cylinder cover is mounted on the push rod mounting base, and the unloading cylinder is disposed inside the cylinder cover.

6. The unloading assembly according to claim 2, characterized in that, The unloading assembly also includes: A blowing air pipe is installed on the push rod mounting base, and the air outlet of the blowing air pipe is located inside the unloading bin.

7. The unloading assembly according to claim 2, characterized in that, The unloading assembly also includes: The hopper cover is detachably installed on the upper part of the unloading hopper via a quick-opening handwheel.

8. A powder mixing device, characterized in that, Includes the unloading assembly as described in any one of claims 1-7.

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