A height-adjustable powder conveyor

Abstract

The utility model discloses a powder conveyor of adjustable height of promotion height relates to conveying device technical field to solve the existing screw conveyor, its transportation height is fixed, can not serve the problem of different height's feeding point. The utility model discloses through drive portion and lifting plate, can fast, steplessly adjust the height of conveying mechanism, adapts different height's feeding point, has greatly promoted the versatility and operation efficiency of equipment, and drive portion is placed in the bottom of equipment, realizes greater height change with smaller installation space, and the gravity center of equipment is low, and the operation is stable. Meanwhile drive portion structure is more stable, replaces the tedious adjustment of manual through power drive, reduces the labor intensity and potential safety hazard of operator.

Description

Technical Field

[0001] This utility model relates to the field of transportation device technology, and in particular to a powder conveyor with adjustable lifting height. Background Technology

[0002] In the production of powder materials in industries such as chemicals, food, pharmaceuticals, and building materials, it is often necessary to lift powder or granular materials from a low place to a high place for feeding, mixing, or packaging. Commonly used lifting equipment includes bucket elevators, screw conveyors, and vacuum feeders. Among them, screw conveyors use rotating screw blades to push materials forward along a fixed trough, and have advantages such as simple structure, small cross-sectional size, good sealing performance, and convenient operation.

[0003] However, the conveying height of existing screw conveyors is usually fixed at the factory. When the production process needs to be adjusted or the equipment needs to serve feeding points at different heights, a fixed-height conveyor becomes very inconvenient. Although some equipment can change the height by changing the screw shaft or housing of different lengths, the operation is cumbersome, time-consuming, and labor-intensive, and requires spare parts, increasing operating costs and downtime.

[0004] Therefore, a powder conveyor that is easy to operate and has an adjustable lifting height to adapt to different working conditions is of great practical significance. Summary of the Invention

[0005] In view of the above-mentioned defects or deficiencies in the prior art, it is desirable to provide a powder conveyor with adjustable lifting height.

[0006] This utility model provides a powder conveyor with adjustable lifting height, comprising: Base plate; The adjustment mechanism includes a first support frame and a second support frame respectively disposed at both ends of the base plate along a first direction. A lifting plate is hinged to the top of the first support frame, and its hinge axis is along a second direction. The bottom of the other end of the lifting plate abuts against the top of the second support frame. A transmission protrusion is provided at the bottom end of the lifting plate. The adjustment mechanism also includes a driving part slidably connected to the transmission protrusion. The driving part is used to drive the lifting plate to swing up and down. A conveying mechanism, located at the top of the lifting plate, is used to convey powder, wherein the first direction and the second direction are perpendicular to each other.

[0007] According to the technical solution provided in the embodiments of this application, the driving unit includes: Two first fixing blocks are arranged along the second direction on the top surface of the base plate, with each first fixing block located at the end of the base plate away from the first support frame. Two first transmission rods are respectively hinged to the top of two first fixed blocks, with their hinge axis along the second direction. A second connecting block is provided at the end of the first transmission rod near the first support frame. A second slider is hinged to the top of the second connecting block. A transmission groove that fits with the transmission protrusion is provided on the second slider. Two screws with their axes aligned in the first direction are rotatably connected to the end of the first fixing block near the first support frame; The first movable block is threadedly connected to the two screws. The top of the first movable block is provided with two first connecting blocks arranged along the second direction. The top of the first connecting block is hinged with a U-shaped first slider, whose hinge axis is along the second direction. The first slider is fitted outside the first transmission rod. The first driving component is used to drive the screw to rotate, thereby causing the first moving block to move along a first direction, causing the first transmission rod to swing up and down, and causing the lifting plate to swing up and down.

[0008] According to the technical solution provided in the embodiments of this application, the conveying mechanism includes a conveying housing disposed on the top surface of the lifting plate. The conveying housing is provided with an inlet for powder feeding and an outlet for powder discharging. A conveying shaft is disposed inside the conveying housing, and a spiral blade for conveying powder is connected to the conveying shaft. The conveying mechanism also includes a second driving member, which is used to drive the conveying shaft to rotate, thereby driving the spiral blade to rotate.

[0009] According to the technical solution provided in the embodiments of this application, the conveying housing is further provided with a maintenance mechanism, the maintenance mechanism including: Multiple third support frames are provided, and the conveying mechanism is connected to the top surface of the lifting plate through the third support frames. Multiple maintenance sections, including a first opening at the top of the conveyor housing, are provided for maintenance of the interior of the conveyor housing.

[0010] According to the technical solution provided in the embodiments of this application, the maintenance unit includes: Two limiting rods are respectively located at both ends of the first opening along the first direction; The locking block is fitted onto the outside of the limiting rod; The first elastic element is fitted outside the limiting rod, with one end connected to the side wall of the first opening and the other end connected to the locking block; The mounting plate includes a first mounting plate and a second mounting plate, which are disposed around the outside of the conveying housing. The first mounting plate and the second mounting plate are respectively located on opposite sides of the first opening along the second direction. A first sealing groove is provided on the first mounting plate and the second mounting plate. A first sealing plate for closing the first opening is provided in the first sealing groove. The first sealing plate is connected to the end of the card block away from the inside of the conveying housing. A second sealing groove is formed on the conveying housing. A second sealing plate is provided in the second sealing groove to close the first opening. The second sealing plate is connected to one end of the card block near the inside of the conveying housing.

[0011] According to the technical solution provided in the embodiments of this application, the maintenance mechanism further includes a plurality of fixing rods; the end of the locking block away from the interior of the conveying housing and the end of the mounting plate away from the interior of the conveying housing are both provided with fixing blocks, and the fixing blocks are provided with through holes for the fixing rods to pass through; the maintenance mechanism further includes a placement groove provided at the top of the lifting plate, the placement groove being used to receive the fixing rods; the maintenance mechanism further includes a limiting part provided at the top of the lifting plate, the limiting part being used to limit the movement of the fixing rods.

[0012] According to the technical solution provided in the embodiments of this application, the maintenance mechanism further includes a reinforcement part, which includes: A reinforcing block is provided at one end of the mounting plate away from the interior of the conveying housing, and a reinforcing groove is provided on the reinforcing block; The first electromagnet, which is a high-power electromagnet, is located in the reinforced groove. A magnetic block is located at one end of the card block away from the interior of the conveying housing.

[0013] According to the technical solution provided in the embodiments of this application, the bottom end of the base plate is also provided with a moving wheel for movement.

[0014] Compared with the prior art, the beneficial effects of this utility model are: This invention, through its drive unit and lifting plate, enables rapid and stepless adjustment of the conveying mechanism's height, adapting to feeding points at different heights. This significantly improves the equipment's versatility and operational efficiency. Furthermore, placing the drive unit at the bottom of the equipment allows for substantial height variations with minimal installation space, resulting in a low center of gravity and stable operation. The drive unit's structure is also more stable, replacing tedious manual adjustments with power-driven operation, thus reducing operator workload and safety hazards.

[0015] This utility model also includes a maintenance mechanism that allows maintenance personnel to directly and quickly approach the fault point for cleaning, inspection, or repair without completely disassembling the entire conveying mechanism. This enables rapid troubleshooting and on-site repair, minimizing equipment downtime and improving production efficiency. In daily maintenance, the maintenance section can be easily opened to observe the internal material flow, check the wear condition of the spiral blades, and perform necessary cleaning, which helps with preventative maintenance and prevents minor problems from escalating into major malfunctions.

[0016] It should be understood that the description in this utility model description section is not intended to limit the key or essential features of the embodiments of this utility model, nor is it intended to restrict the scope of this utility model. Other features of this utility model will become readily apparent from the following description. Attached Figure Description

[0017] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings: Figure 1 A schematic diagram of a powder conveyor with adjustable lifting height provided for an embodiment of this application; Figure 2 A front view structural schematic diagram of a powder conveyor with adjustable lifting height provided for an embodiment of this application; Figure 3 A top cross-sectional view of a powder conveyor with adjustable lifting height provided in an embodiment of this application; Figure 4 A right-side cross-sectional view of a powder conveyor with adjustable lifting height provided in an embodiment of this application; Figure 5 for Figure 4 A magnified schematic diagram of a portion of region A in the middle; Figure 6 for Figure 4 A magnified schematic diagram of a portion of region B.

[0018] Numbering on the map: 1. Base plate; 2. Adjustment mechanism; 21. First fixed block; 22. First moving block; 221. First connecting block; 222. First slider; 23. Screw; 24. First driving component; 25. First transmission rod; 251. Second connecting block; 252. Second slider; 26. Lifting plate; 261. Transmission protrusion; 27. First support frame; 28. Second support frame; 3. Conveying mechanism; 31. Conveying housing; 32. Feed inlet; 33. Discharge outlet; 34. Conveying shaft; 35. Spiral blades; 36. Second driving component; 361. Protective housing; 4. Maintenance mechanism; 41. Third support frame; 42. Maintenance section; 421. Mounting plate; 422. First sealing groove; 423. First sealing plate; 424. Second sealing groove; 425. Second sealing plate; 426. First opening; 427. Limiting rod; 428. Locking block; 429. First elastic element; 43. Limiting part; 431. First limiting block; 432. Second limiting block; 433. Limiting plate; 434. Second elastic element; 435. Limiting groove; 44. Placement groove; 45. Fixing rod; 46. Reinforcing part; 461. Reinforcing block; 462. Reinforcing groove; 463. First electromagnet; 464. Magnetic block; 5. Casters. Detailed Implementation

[0019] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the relevant invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, only the parts relevant to the invention are shown in the accompanying drawings.

[0020] It should be noted that, where there is no conflict, the embodiments and features in the embodiments of this utility model can be combined with each other. The present utility model will now be described in detail with reference to the accompanying drawings and embodiments.

[0021] Please refer to Figures 1-6 An embodiment of this utility model provides a powder conveyor with adjustable lifting height, comprising: Base plate 1; The adjustment mechanism 2 includes a first support frame 27 and a second support frame 28 respectively disposed at opposite ends of the base plate 1 along a first direction. A lifting plate 26 is hinged to the top of the first support frame 27, with its hinge axis along a second direction. The bottom of the other end of the lifting plate 26 abuts against the top of the second support frame 28. A transmission protrusion 261 is provided at the bottom of the lifting plate 26. The adjustment mechanism 2 also includes a drive part that is slidably connected to the transmission protrusion 261. The drive part is used to drive the lifting plate 26 to swing up and down. Conveying mechanism 3, located at the top of lifting plate 26, is used to convey powder. The first direction and the second direction are perpendicular to each other. The first direction is... Figure 2 The left and right directions, the second direction is Figure 2 The front and back directions in the middle.

[0022] When faced with feeding points at different heights, the drive unit is activated, which causes the lifting plate 26 to swing up and down. The conveying mechanism 3 on the lifting plate 26 also swings accordingly, thereby adjusting the different heights of powder transportation.

[0023] In this invention, the base plate 1 provides a unified and stable mounting foundation for the adjusting mechanism 2 and the conveying mechanism 3, ensuring the integrity of the equipment during movement and operation. The first support frame 27 and the second support frame 28 of the adjusting mechanism 2 serve as two fixed fulcrums for the entire lifting structure, ensuring stability and safety during the adjustment process. The lifting plate 26 itself acts as a rigid platform, providing a direct and stable mounting surface for the conveying mechanism 3, ensuring that the conveying mechanism 3 moves synchronously with the adjusting mechanism 2. The drive unit is slidably connected to the transmission protrusion 261, allowing for smooth adjustment of the tilt angle of the lifting plate 26, ultimately achieving precise control of the feeding height. The conveying mechanism 3 is directly fixed to the lifting plate 26, and its height is entirely determined by the adjusting mechanism 2. This design allows the tilt angle of the entire conveying mechanism 3 to change synchronously, avoiding the need for complex movable bends in the middle of the pipeline, simplifying the structure, and reducing the risk of blockage.

[0024] In some embodiments, the driving unit includes: Two first fixing blocks 21 are arranged along the second direction on the top surface of the base plate 1, with each first fixing block 21 located at the end of the base plate 1 away from the first support frame 27. Two first transmission rods 25 are respectively hinged to the top of two first fixed blocks 21, and their hinge axis is along the second direction. A second connecting block 251 is provided at one end of the first transmission rod 25 near the first support frame 27. A second slider 252 is hinged to the top of the second connecting block 251. A transmission groove that fits with the transmission protrusion 261 is provided on the second slider 252. Two screws 23 with their axes aligned in the first direction are rotatably connected to the end of the first fixing block 21 near the first support frame 27; The first movable block 22 is threadedly connected to two screws 23. The top of the first movable block 22 is provided with two first connecting blocks 221 arranged along the second direction. The top of the first connecting block 221 is hinged with a U-shaped first slider 222, whose hinge axis is along the second direction. The first slider 222 is fitted outside the first transmission rod 25. The first driving component 24 is used to drive the screw 23 to rotate, thereby causing the first moving block 22 to move along the first direction, causing the first transmission rod 25 to swing up and down, and causing the lifting plate 26 to swing up and down.

[0025] When facing feeding points at different heights, the first driving component 24 is driven, which drives the screw 23 to rotate. Since both screws 23 are threadedly connected to the first moving block 22, the first moving block 22 will not rotate, but will move left and right. During the left and right movement of the first moving block 22, the first sliding block 222 pushes the first transmission rod 25, forcing the first transmission rod 25 to swing up and down with its hinge point with the first fixed block 21 as the fulcrum. When the first transmission rod 25 swings, the second sliding block 252 at its end pushes the transmission protrusion 261 through the transmission groove, thereby lifting or lowering the lifting plate 26.

[0026] like Figure 1 , Figure 2 and Figure 4 As shown, the first fixed block 21 can transmit the force of the drive unit to the base plate 1 and provide the core fulcrum for the swing of the first transmission rod 25, ensuring the stable operation of the mechanism. The screw drive structure composed of the screw 23, the first moving block 22, and the first drive member 24 has extremely high displacement accuracy, enabling fine adjustment of the lifting height. At the same time, the screw drive structure usually has a self-locking function. Even after the power supply is stopped, the height of the lifting plate 26 will be firmly locked and will not slide down due to the load, ensuring safety and reliability. The first slider 222 is hinged to the first moving block 22 via the first connecting block 221. The first slider 222 smoothly converts the horizontal linear movement of the first moving block 22 into a pushing and pulling force on the first transmission rod 25 by sliding on the first transmission rod 25. The first slider 222 is hinged to the first connecting block 221 and can slide on the first transmission rod 25. This cleverly adapts to the compound motion generated by the horizontal movement of the first moving block 22 and the continuous change of the angle of the first transmission rod 25, avoiding motion interference and reducing wear. The first transmission rod 25 utilizes the lever principle to generate a small horizontal displacement through the first moving block 22, causing a larger vertical displacement at the end of the second slider 252. This achieves a greater lifting effect with less driving power, providing mechanical gain and higher operating efficiency. The second slider 252 is hinged to the first transmission rod 25 via the second connecting block 251, and the transmission groove and transmission protrusion 261 are slidably connected. This design accommodates two types of motion: the arc motion at the end of the first transmission rod 25, and the angular change of the transmission protrusion 261 itself when the lifting plate 26 swings. This design ensures the continuity and smoothness of force transmission, avoiding point contact or jamming. The drive unit fully utilizes the lever principle to achieve a large height adjustment range within a limited installation space. It also avoids motion interference through hinge points and sliding connections, resulting in reasonable force distribution, minimal wear, and a more stable structure, ensuring long-term stable operation of the equipment in industrial environments.

[0027] In some embodiments, the conveying mechanism 3 includes a conveying housing 31 disposed on the top surface of the lifting plate 26. The conveying housing 31 is provided with a feed port 32 for powder feeding and a discharge port 33 for powder discharging. A conveying shaft 34 is disposed inside the conveying housing 31, and a spiral blade 35 for conveying powder is connected to the conveying shaft 34. The conveying mechanism 3 also includes a second driving member 36, which is used to drive the conveying shaft 34 to rotate, thereby driving the spiral blade 35 to rotate.

[0028] Furthermore, both the inlet 32 ​​and the outlet 33 are connected to flexible hoses, and the second drive unit 36 ​​is covered with a protective shell 361.

[0029] like Figure 3As shown, the conveying housing 31 achieves completely enclosed conveying of powder materials, effectively preventing dust dispersion, ensuring a clean working environment, avoiding material waste and potential explosion risks, and complying with environmental and safety regulations. The inlet 32 ​​and outlet 33 are easily connected to equipment such as silos and reactors via flexible hoses. The conveying shaft 34, in conjunction with the spiral blades 35, generates continuous axial thrust on the powder, achieving uniform, continuous, and controllable conveying with stable flow. Furthermore, the rotation of the spiral blades 35 during conveying slightly agitates the powder, helping to prevent agglomeration or bridging. The second drive component 36 can be a motor. By adjusting the speed of the second drive component 36, the rotation speed of the spiral blades 35 can be precisely controlled, achieving stepless adjustment of the powder conveying rate to meet the acceleration requirements of different processes. The protective housing 361 effectively prevents dust and other impurities from entering the second drive component 36, extending its lifespan.

[0030] In some embodiments, the conveying housing 31 is further provided with a maintenance mechanism 4, which includes: Multiple third support frames 41, the conveying mechanism 3 is connected to the top surface of the lifting plate 26 through the third support frames 41; Multiple maintenance sections 42, including a first opening 426 formed on the top of the conveyor housing 31, are used for maintenance of the interior of the conveyor housing 31.

[0031] like Figures 1-6 As shown, the third support frame 41, acting as a rigid connector, ensures that the heavy conveying mechanism 3 (containing materials) can be safely and stably supported on the movable lifting plate 26, guaranteeing the rigidity and stability of the overall structure. The maintenance section 42 can inspect the interior of the conveying housing 31 through the first opening 426, allowing maintenance personnel to directly and quickly approach the fault point for cleaning, inspection, or repair without completely disassembling the entire conveying mechanism 3, thus reducing downtime.

[0032] In some embodiments, the maintenance unit 42 further includes: Two limiting rods 427 are respectively provided at both ends of the first opening 426 along the first direction; Block 428 is fitted onto the limiting lever 427; The first elastic element 429 is fitted outside the limiting rod 427, with one end connected to the side wall of the first opening 426 and the other end connected to the locking block 428; Mounting plate 421 includes a first mounting plate and a second mounting plate, which are arranged around the outside of the conveying housing 31. The first mounting plate and the second mounting plate are respectively located on opposite sides of the first opening 426 along the second direction. A first sealing groove 422 is provided on a first mounting plate and a second mounting plate. A first sealing plate 423 for closing the first opening 426 is provided in the first sealing groove 422. The first sealing plate 423 is connected to the end of the block 428 away from the inside of the conveying housing 31. The second sealing groove 424 is provided on the conveying housing 31. The second sealing groove 424 is provided with a second sealing plate 425 for closing the first opening 426. The second sealing plate 425 is connected to the end of the locking block 428 near the inside of the conveying housing 31.

[0033] When maintenance is required, pull the locking block 428. Furthermore, the first opening 426 is an arc-shaped opening, and the limiting rod 427 is an arc-shaped rod.

[0034] like Figures 1-6 As shown, the limiting rod 427 provides a precise movement trajectory for the movement of the locking block 428, ensuring that it can only move in a direction perpendicular to the outer casing wall, preventing skewing or jamming. The first elastic element 429 is a strong spring. In its natural state, the elastic force of the first elastic element 429 pushes the locking block 428, thereby pressing the first sealing plate 423 and the second sealing plate 425 tightly onto their respective sealing grooves, providing a continuous initial sealing force to ensure a sealing effect. The locking block 428 connects the inner layer (second sealing plate 425) and the outer layer (first sealing plate 423) into a whole, achieving synchronous movement. The operator only needs to operate the outer layer to drive the inner layer. The first sealing plate 423, the second sealing plate 425, the first sealing groove 422, and the second sealing groove 424 form two sealing barriers. The second sealing plate 425 and the second sealing groove 424 constitute the inner sealing barrier, directly facing the powder in the conveying cavity and any slight positive pressure that may exist. This is the main sealing barrier, preventing powder leakage. The first sealing plate 423 and the first sealing groove 422 constitute the outer sealing barrier, preventing external dust and moisture from entering the equipment. The first sealing plate 423 and the second sealing plate 425 are independent. If the inner second sealing plate 425 wears due to long-term contact with materials, it can be replaced individually without replacing the entire maintenance section 42, reducing maintenance costs. The mounting plate 421 provides a strong and stable mounting platform for the entire maintenance section 42, ensuring that the sealing force can be evenly applied to the conveying housing 31, preventing deformation of the housing wall due to stress. In some embodiments, the maintenance mechanism 4 further includes a plurality of fixing rods 45; the end of the locking block 428 away from the interior of the conveying housing 31 and the end of the mounting plate 421 away from the interior of the conveying housing 31 are both provided with fixing blocks, and the fixing blocks are provided with through holes for the fixing rods 45 to pass through; the maintenance mechanism 4 further includes a placement groove 44 provided at the top of the lifting plate 26, the placement groove 44 is used to receive the fixing rods 45; the maintenance mechanism 4 further includes a limiting part 43 provided at the top of the lifting plate 26, the limiting part 43 is used to limit the movement of the fixing rods 45.

[0035] Furthermore, the limiting part 43 includes a first limiting block 431 and a second limiting block 432 respectively disposed on both sides of the placement groove 44 along the second direction. The first limiting block 431 is provided with a limiting groove 435, and a slidable limiting plate 433 is provided in the limiting groove 435. A second elastic member 434 is connected to one end of the limiting plate 433 away from the second limiting block 432, and the other end of the second elastic member 434 is connected to the inner wall of the limiting groove 435. The limiting plate 433 is engaged with the second limiting block 432.

[0036] like Figure 3 , Figure 4 and Figure 6 As shown, during maintenance, the locking block 428 can be temporarily fixed by inserting the fixing rod 45 into the fixing block, improving the convenience of the maintenance section 42. The placement slot 44 provides a clear and fixed storage location for the fixing rod 45. This is very important for small tool management, completely solving the problem of "not being able to find it when needed," and is particularly suitable for use in busy industrial sites, improving work efficiency. Through the limiting section 43 composed of the first limiting block 431, the limiting groove 435, the limiting plate 433, the second elastic element 434, and the second limiting block 432, the operator can easily remove or place the fixing rod 45 by gently turning the limiting plate 433 with one hand to overcome the spring force. In some embodiments, the maintenance mechanism 4 further includes a reinforcement part 46, which includes: A reinforcing block 461 is located at one end of the mounting plate 421 away from the interior of the conveying housing 31, and a reinforcing groove 462 is provided on the reinforcing block 461. The first electromagnet 463 is located in the reinforcing groove 462 and is a powerful electromagnet. Magnetic block 464 is located at one end of card block 428 away from the inside of conveying housing 31.

[0037] like Figure 4 and Figure 5 As shown, the reinforcing block 461 provides a stable mounting base, and the reinforcing groove 462 ensures that the first electromagnet 463 and the opposite magnetic block 464 are precisely aligned, achieving accurate positioning and guaranteeing the best attraction effect. When energized, the first electromagnet 463 generates a magnetic attraction force far exceeding that of the first elastic element 429, tightly pulling the locking block 428 and its connected inner and outer sealing plates towards the mounting plate 421. This greatly enhances the clamping force of the sealing surface, forming a super-strong seal. The magnetic block 464 is made of ferromagnetic material (such as low-carbon steel) and can form an effective magnetic circuit with the first electromagnet 463, efficiently converting the magnetic energy of the first electromagnet 463 into mechanical locking force.

[0038] In some embodiments, the bottom end of the base plate 1 is also provided with a moving wheel 5 for movement.

[0039] like Figure 1 As shown, the mobile wheel 5 allows operators to easily and quickly position the equipment and begin operations, significantly improving production pace and work efficiency.

[0040] In the description of this specification, the terms "connection," "installation," and "fixing," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0041] In the description of this specification, the terms "one embodiment," "some embodiments," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0042] The above are merely preferred embodiments of this application and are not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A powder conveyor with adjustable lifting height, characterized in that, include: Base plate (1); The adjustment mechanism (2) includes a first support frame (27) and a second support frame (28) respectively disposed at both ends of the base plate (1) along a first direction. The top end of the first support frame (27) is hinged to a lifting plate (26), the hinge axis of which is along a second direction. The bottom end of the other end of the lifting plate (26) abuts against the top end of the second support frame (28). The bottom end of the lifting plate (26) is provided with a transmission protrusion (261). The adjustment mechanism (2) also includes a driving part that is slidably connected to the transmission protrusion (261). The driving part is used to drive the lifting plate (26) to swing up and down. The conveying mechanism (3) is located at the top of the lifting plate (26) and is used to convey powder. The first direction is perpendicular to the second direction.

2. The powder conveyor with adjustable lifting height according to claim 1, characterized in that, The drive unit includes: Two first fixing blocks (21) are arranged along the second direction on the top surface of the base plate (1), and each first fixing block (21) is located at the end of the base plate (1) away from the first support frame (27); Two first transmission rods (25) are respectively hinged to the top of two first fixed blocks (21), with their hinge axis along the second direction. A second connecting block (251) is provided at one end of the first transmission rod (25) near the first support frame (27). A second slider (252) is hinged to the top of the second connecting block (251). A transmission groove that fits with the transmission protrusion (261) is provided on the second slider (252). Two screws (23) with their axes aligned in the first direction are rotatably connected to one end of the first fixing block (21) near the first support frame (27); The first moving block (22) is threadedly connected to the two screws (23). The top of the first moving block (22) is provided with two first connecting blocks (221) arranged in the second direction. The top of the first connecting block (221) is hinged with a U-shaped first slider (222), whose hinge axis is along the second direction. The first slider (222) is fitted outside the first transmission rod (25). The first driving member (24) is used to drive the screw (23) to rotate, thereby causing the first moving block (22) to move along the first direction, causing the first transmission rod (25) to swing up and down, and causing the lifting plate (26) to swing up and down.

3. The powder conveyor with adjustable lifting height according to claim 2, characterized in that, The conveying mechanism (3) includes a conveying housing (31) disposed on the top surface of the lifting plate (26). The conveying housing (31) is provided with a feed port (32) for powder feeding and a discharge port (33) for powder discharge. The conveying housing (31) is provided with a conveying shaft (34). A spiral blade (35) for conveying powder is connected to the conveying shaft (34). The conveying mechanism (3) also includes a second driving member (36). The second driving member (36) is used to drive the conveying shaft (34) to rotate, thereby driving the spiral blade (35) to rotate.

4. The powder conveyor with adjustable lifting height according to claim 3, characterized in that, The conveying housing (31) is also provided with a maintenance mechanism (4), which includes: Multiple third support frames (41), the conveying mechanism (3) is connected to the top surface of the lifting plate (26) through the third support frames (41); Multiple maintenance sections (42) including a first opening (426) on the top of the conveyor housing (31), the maintenance section (42) being used for maintenance of the interior of the conveyor housing (31).

5. The powder conveyor with adjustable lifting height according to claim 4, characterized in that, The maintenance unit (42) also includes: Two limiting rods (427) are respectively provided at both ends of the first opening (426) along the first direction; The locking block (428) is fitted onto the outside of the limiting rod (427); The first elastic element (429) is fitted outside the limiting rod (427), with one end connected to the side wall of the first opening (426) and the other end connected to the locking block (428); Mounting plate (421) includes a first mounting plate and a second mounting plate, the first mounting plate and the second mounting plate are disposed around the outside of the conveying housing (31), the first mounting plate and the second mounting plate are respectively located on opposite sides of the first opening (426) along the second direction; A first sealing groove (422) is provided on the first mounting plate and the second mounting plate. A first sealing plate (423) for closing the first opening (426) is provided in the first sealing groove (422). The first sealing plate (423) is connected to one end of the card block (428) away from the inside of the conveying housing (31). The second sealing groove (424) is provided on the conveying housing (31). The second sealing groove (424) is provided with a second sealing plate (425) for closing the first opening (426). The second sealing plate (425) is connected to one end of the card block (428) near the inside of the conveying housing (31).

6. The powder conveyor with adjustable lifting height according to claim 5, characterized in that, The maintenance mechanism (4) also includes multiple fixing rods (45); the end of the locking block (428) away from the inside of the conveying housing (31) and the end of the mounting plate (421) away from the inside of the conveying housing (31) are both provided with fixing blocks, and the fixing blocks are provided with through holes for the fixing rods (45) to pass through; the maintenance mechanism (4) also includes a placement groove (44) provided at the top of the lifting plate (26), the placement groove (44) is used to store the fixing rods (45); the maintenance mechanism (4) also includes a limiting part (43) provided at the top of the lifting plate (26), the limiting part (43) is used to limit the movement of the fixing rods (45).

7. The powder conveyor with adjustable lifting height according to claim 6, characterized in that, The maintenance mechanism (4) further includes a reinforcement part (46), which includes: A reinforcing block (461) is provided at one end of the mounting plate (421) away from the interior of the conveying housing (31), and a reinforcing groove (462) is provided on the reinforcing block (461). The first electromagnet (463) is located in the reinforcing groove (462) and is a powerful electromagnet; A magnetic block (464) is located at one end of the card block (428) away from the interior of the conveying housing (31).

8. The powder conveyor with adjustable lifting height according to claim 7, characterized in that, The bottom end of the base plate (1) is also provided with a moving wheel (5) for moving.

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