Screw conveyer with screening function

Abstract

The invention relates to the technical field of spiral conveying, in particular to a spiral conveyor with a screening function, which comprises a fixed support, a conveying mechanism, a screening mechanism and a collecting mechanism, the conveying mechanism is mounted on the fixed support, and the conveying mechanism is used for conveying conveyed raw materials from a low position into the collecting mechanism; the conveying mechanism is provided with the screening mechanism, the screening mechanism is used for screening the materials, the screening mechanism is used for screening the raw materials on the spiral conveyor, then it is guaranteed that the qualified raw materials fall into the collecting box, and the collecting mechanism is installed at one end of the conveying mechanism. And the collecting mechanism is used for collecting the screened raw materials.

Description

Technical Field

[0001] The present invention relates to the technical field of conveyors, and particularly to a screw conveyor with a screening function. Background Art

[0002] A screw conveyor is a common material conveying device, and its main body is mainly composed of a screw shaft, screw blades, and a trough. The screw shaft rotates driven by a motor, driving the screw blades to push the material forward along the trough, thereby realizing the continuous conveying of the material. This structure is simple and the conveying effect is stable, and it is widely used in many industrial occasions.

[0003] However, although the existing screw conveyors can effectively convey various materials, their functions are relatively single, and they can only complete basic material transfer tasks. With the continuous refinement and complexity of the production process, the demand for an integrated device that can simultaneously realize the functions of conveying and screening is becoming increasingly urgent. On the one hand, the separate conveying and screening processes increase the floor area of the equipment, prolong the material processing process, and reduce the production efficiency; on the other hand, traditional conveyors cannot screen materials in real time during the conveying process, resulting in more complex problems such as impurity removal and particle size classification in the subsequent processing stage.

[0004] In view of the above situation, in order to overcome the above technical problems, the present invention designs a screw conveyor with a screening function, which solves the above technical problems. Summary of the Invention

[0005] The technical object to be achieved by the present invention is to solve the problem that although the existing screw conveyors can effectively convey various materials, their functions are relatively single, and they can only complete basic material transfer tasks. With the continuous refinement and complexity of the production process, the demand for an integrated device that can simultaneously realize the functions of conveying and screening is becoming increasingly urgent. On the one hand, the separate conveying and screening processes increase the floor area of the equipment, prolong the material processing process, and reduce the production efficiency; on the other hand, traditional conveyors cannot screen materials in real time during the conveying process, resulting in more complex problems such as impurity removal and particle size classification in the subsequent processing stage.

[0006] To achieve the above technical object, the present invention provides the following technical solution: A screw conveyor with a screening function, including a fixed support, a conveying mechanism, a screening mechanism, and a collecting mechanism. The conveying mechanism is installed on the fixed support and is used to convey the raw materials to be conveyed into the collecting mechanism. The screening mechanism is installed on the conveying mechanism and is used to screen the materials. The screening mechanism is used to screen the raw materials on the screw conveyor, so as to ensure that the qualified raw materials fall into the collecting box. The collecting mechanism is installed at one end of the conveying mechanism and is used to collect the screened raw materials.

[0007] By setting up a screening mechanism, and installing the screening hole array on the conveying cover and increasing it sequentially along the conveying cover, it is possible to effectively screen raw materials of different particle sizes, so that qualified raw materials fall into the collection box, and unqualified large-particle materials can be separated, thereby improving the quality control level of the raw materials, ensuring that the quality of the raw materials in the subsequent production or use process meets the requirements, and reducing quality problems and production losses caused by the mixing of impurities or materials with unqualified particle sizes.

[0008] At the same time, through the continuous rotation of the driving rod, the power assembly realizes the periodic vibration drive of the conveying cover, without the need for an additional power source or a complex control system to start and maintain the vibration, reducing the energy consumption and maintenance cost of the equipment, improving the automation degree of the screening process, making the whole screening process more concise and efficient, reducing the need for manual intervention, and enhancing the stability and durability of the equipment.

[0009] Preferably, the conveying mechanism includes a rotating motor, a driving rod, a driven rod, conveying blades, a conveying cover and a feed inlet. The rotating motor is installed on the fixed bracket, the output end of the rotating motor is installed with the driving rod, the driving rod is installed with the driven rod, the driven rod is installed with the conveying blades, the conveying blades are installed with the conveying cover outside, and the feed inlet is installed above the conveying cover.

[0010] The conveying mechanism drives the driving rod, the driven rod and the conveying blades in sequence through the rotating motor, so that the raw materials move forward under the rotation of the conveying blades, and at the same time, preliminary screening is realized under the limitation of the conveying cover. Its advantages are compact structure and stable transmission, which can organically combine the raw material conveying and screening processes, improve work efficiency, and each component is installed on the fixed bracket, with good overall stability, facilitating operation and maintenance.

[0011] Preferably, the screening mechanism includes screening holes, a vibration frame, a limiting plate, limiting grooves, hinge columns, hinge grooves and a power assembly. The screening hole array is installed on the conveying cover, the vibration frame is installed on the conveying cover, the limiting plate is installed on the fixed bracket, the limiting grooves are arranged in an array on the limiting plate, the vibration frame passes through the limiting grooves, the other end of the vibration frame is provided with hinge columns, hinge grooves are opened on the fixed bracket, and the hinge columns are installed inside the hinge grooves; the power assembly is installed on the fixed bracket.

[0012] The power assembly drives the vibrating frame's cyclical movement, specifically the articulated column, which moves the frame within the limiting slots. Through the linkage between the power assembly and the active rod, the cyclical movement of the vibrating frame is cleverly integrated into the raw material screening process. The power assembly leverages the active rod's rotational motion to precisely drive the vibrating frame, causing it to vibrate regularly within the constraints of the limiting slots. This vibration method not only improves screening efficiency, ensuring that the portion of raw material that meets the particle size requirements passes smoothly through the screening apertures, but also effectively prevents clogging, while ensuring the continuity and stability of the screening process, significantly enhancing screening effectiveness and quality.

[0013] Preferably, the width of the limiting slots matches the thickness of the vibrating frame. This precise matching of the limiting slot width and the vibrating frame thickness ensures the vibrating frame maintains a stable and precise motion trajectory during vibration. This precise dimensional matching effectively prevents excessive deflection or shaking of the vibrating frame during operation, thereby improving the stability of the screening process and the accuracy of the screening effect, ensuring that the screening holes can efficiently screen the raw materials, while also extending the equipment's service life and reducing maintenance costs.

[0014] Preferably, the power assembly includes a rotating ring, a fixed plate and a transmission rod, the rotating ring is mounted on the active rod, the fixed plate is mounted on the fixed bracket, the transmission rod is slidably mounted in the fixed plate, and the other end of the transmission rod is in contact with the conveying cover.

[0015] The power assembly cleverly utilizes the rotation of the active rod, driving the transmission rod through a rotating ring to periodically move, thereby achieving regular vibration of the conveyor hood. The fixed plate limits the transmission rod, ensuring its stability during movement and preventing deviation or shaking. This improves the stability of the screening process and the reliability of the screening results. This transmission method not only improves screening efficiency, but also enhances the durability of the equipment and reduces maintenance costs.

[0016] Preferably, the rotating ring is symmetrically mounted with arc-shaped drive blocks for driving the transmission rod. These arc-shaped drive blocks, symmetrically mounted on the rotating ring, enable the transmission rod to achieve smooth, periodic movement when in contact with the drive blocks. This arc-shaped design helps reduce contact stress, minimize wear, and extend component life. It also ensures smoother and more reliable movement of the transmission rod, thereby improving the overall stability of the screening mechanism and the uniformity of the screening effect.

[0017] Preferably, a master arm is mounted on the driven rod, a fixing slot corresponding to the master arm is provided on the master rod, and the driven rod slides on the master rod through the fixing slot.

[0018] This design enables the driven rod to slide periodically under the influence of the power assembly, while ensuring that the driven rod can stably drive the conveying blades to rotate, cleverly combining conveying and screening functions. This innovation not only improves equipment operating efficiency and meets the needs of different working conditions, but also optimizes material conveying and screening effects. It demonstrates the design's flexibility and practicality, enhances equipment reliability, and reduces maintenance costs.

[0019] Preferably, the transmission rod is detachably mounted on the conveyor cover; this structure enhances the flexibility and adaptability of the equipment. This detachable design greatly facilitates maintenance or replacement of the conveyor cover or transmission rod, or when the connection between the two needs to be adjusted to meet different screening requirements. This reduces the time and cost of repairs and adjustments, and improves the maintenance efficiency and service life of the equipment.

[0020] Preferably, the collection mechanism includes a conveying slide rail, a No. 1 collection box, a No. 2 collection box, a filter screen and a pull-out box. The conveying slide rail is installed on the fixed bracket, and the conveying slide rail corresponds one-to-one to the areas corresponding to the screening holes of different diameters; a No. 1 collection box is installed on the other end of the conveying slide rail; three No. 1 collection boxes are arranged in parallel; a No. 2 collection box is installed at one end of the conveying cover; a filter screen is provided at the bottom of the No. 1 collection box and the No. 2 collection box, and a pull-out box is installed at the bottom of the filter screen.

[0021] The collection mechanism's design, with its one-to-one correspondence between conveyor rails and screening holes, enables precise guidance and classified collection of materials of varying particle sizes. The provision of collection boxes #1 and #2 meets multi-stage collection requirements. The bottom filter effectively removes floating dust, and the pull-out box facilitates centralized impurity removal. This structure not only improves material collection efficiency and purity, but also simplifies maintenance and reduces cleaning costs. The overall design is scientific and rational, effectively enhancing the practicality and reliability of the screw conveyor.

[0022] The beneficial effects of the present invention are as follows: 1. The present invention sets a screening mechanism, and the screening hole array is installed on the conveying cover and increases successively along the conveying cover, which can effectively screen raw materials of different particle sizes, so that qualified raw materials fall into the collection box, and unqualified large-particle materials can be separated out, thereby improving the quality control level of raw materials, ensuring that the quality of raw materials in subsequent production or use meets the requirements, and reducing quality problems and production losses caused by the mixing of impurities or materials with unqualified particle sizes.

[0023] 2. The present invention ensures that the vibrating frame can stably perform the vibrating screening action driven by the power assembly through the cooperation between the vibrating frame and the limiting groove on the limiting plate, and the connection mode of the hinged column and the hinged groove. Moreover, the width of the limiting groove is consistent with the thickness of the vibrating frame, further enhancing the stability of the vibrating frame during the vibrating screening process, avoiding excessive deviation or shaking during vibration, so that the screening mechanism can continuously and stably screen the materials, improving the screening efficiency and accuracy, and ensuring the continuity and stability of the production process.

[0024] 3. The present invention makes the conveying slide rails of the collection mechanism correspond to the screening holes one by one, facilitating the collection of qualified raw materials of different specifications screened out into the first collection box; the waste materials are collected into the second collection box, realizing the classified collection of materials, improving the automation degree of the production process and the convenience of material management. At the same time, filter nets are arranged at the bottoms of the first collection box and the second collection box, which can further intercept fine impurities. The drawer boxes at the bottoms are convenient for centralized cleaning of the collected impurities, simplifying the equipment maintenance and cleaning work, reducing the manual cleaning cost and labor intensity.

[0025] 4. Through the continuous rotation of the driving rod, the present invention realizes the periodic vibration drive of the conveying cover by the power assembly, without the need for an additional power source or a complex control system to start and maintain the vibration, reducing the energy consumption and maintenance cost of the equipment, improving the automation degree of the screening process, making the whole screening process more concise and efficient, reducing the need for manual intervention, and enhancing the stability and durability of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required to be used in the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0027] Now the present invention will be described with reference to the drawings, only by way of example, wherein: Figure 1 is a three-dimensional structural schematic diagram of the whole of the present invention.

[0028] Figure 2 is a schematic diagram of the conveying mechanism of the present invention.

[0029] Figure 3 is a schematic diagram of the installation position of the conveying blades of the present invention.

[0030] Figure 4 is a schematic diagram of the screening mechanism of the present invention.

[0031] Figure 5It is a schematic diagram of the power component of the present invention.

[0032] Figure 6 It is a schematic diagram of the screening holes of the present invention.

[0033] Figure 7 It is a schematic diagram of the installation position of the driving block of the present invention.

[0034] Figure 8 It is a schematic diagram of the rotating ring of the present invention.

[0035] Figure 9 It is a schematic diagram of the installation positions of the filter net and the pull-out box of the present invention.

[0036] In the figure: 1. Fixed bracket; 2. Conveying mechanism; 21. Rotating motor; 22. Driving rod; 221. Fixed groove; 23. Driven rod; 231. Driving arm; 24. Conveying blades; 25. Conveying cover; 26. Feeding port; 3. Screening mechanism; 31. Screening holes; 32. Vibration frame; 33. Limiting plate; 34. Limiting groove; 35. Hinge column; 36. Hinge groove; 37. Power component; 371. Rotating ring; 3711. Driving block; 372. Fixed plate; 373. Transmission rod; 4. Collection mechanism; 41. Conveying slide rail; 42. First collection box; 43. Second collection box; 44. Filter net; 45. Pull-out box. Detailed implementation manners

[0037] In order to better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the specification drawings and specific implementation manners.

[0038] As Figures 1 to 9 shown, a screw conveyor with a screening function includes a fixed bracket 1, a conveying mechanism 2, a screening mechanism 3 and a collection mechanism 4. The conveying mechanism 2 is installed on the fixed bracket 1. The conveying mechanism 2 is used to convey the raw materials to be conveyed into the collection mechanism 4. The screening mechanism 3 is installed on the conveying mechanism 2. The screening mechanism 3 is used to screen the materials. The screening mechanism 3 is used to screen the raw materials on the screw conveyor, so as to ensure that the qualified raw materials fall into the collection box. The collection mechanism 4 is installed at one end of the conveying mechanism 2. The collection mechanism 4 is used to collect the screened raw materials.

[0039] By setting the screening mechanism 3, and the screening holes 31 are arranged in an array on the conveying cover 25 and increase in sequence along the conveying cover 25, it is possible to effectively screen raw materials of different particle sizes, so that the qualified raw materials fall into the collection box, and the unqualified large-particle materials can be separated, thereby improving the quality control level of the raw materials, ensuring that the quality of the raw materials in the subsequent production or use process meets the requirements, and reducing the quality problems and production losses caused by the mixing of impurities or materials with unqualified particle sizes.

[0040] Meanwhile, through the continuous rotation of the driving rod 22, the power assembly 37 realizes the periodic vibration drive of the conveying cover 25, eliminating the need for an additional power source or a complex control system to start and maintain the vibration. This reduces the energy consumption and maintenance costs of the equipment, improves the automation level of the screening process, makes the entire screening process more concise and efficient, reduces the need for manual intervention, and enhances the stability and durability of the equipment.

[0041] As Figures 1 to 3 shown, the conveying mechanism 2 includes a rotating motor 21, a driving rod 22, a driven rod 23, conveying blades 24, a conveying cover 25, and a feed inlet 26. The rotating motor 21 is installed on the fixed bracket 1, and the rotating motor 21 is used to drive the driving rod 22 to rotate; the output end of the rotating motor 21 is equipped with the driving rod 22, and the driving rod 22 is used to drive the driven rod 23 to rotate by rotation; the driven rod 23 is installed on the driving rod 22, and the rotation of the driven rod 23 drives the conveying blades 24 to rotate; the conveying blades 24 are installed on the driven rod 23, and while the conveying blades 24 rotate to drive the raw materials to move forward, screening is performed; a conveying cover 25 is installed outside the conveying blades 24, and the conveying cover 25 is used to screen the raw materials; a feed inlet 26 is installed above the conveying cover 25, and the feed inlet 26 is used to add raw materials into the conveying cover 25.

[0042] During operation, the staff adds the raw materials into the interior of the conveying mechanism 2 from the feed inlet 26. At this time, the rotating motor 21 is started, and the rotation of the rotating motor 21 drives the driving rod 22 to rotate. The rotating driving rod 22 drives the driven rod 23 to rotate, and the rotating driven rod 23 of the rotating rod drives the conveying blades 24 to rotate. Under the limitation of the conveying cover 25, while the rotating conveying blades 24 drive the raw materials to move, screening is performed.

[0043] The conveying mechanism 2 drives the driving rod 22, the driven rod 23, and the conveying blades 24 in sequence through the rotating motor 21, so that the raw materials move forward under the rotation of the conveying blades 24, and at the same time, preliminary screening is realized under the limitation of the conveying cover 25. Its advantages are compact structure and stable transmission, which can organically combine the raw material conveying and screening processes, improve work efficiency, and since each component is installed on the fixed bracket 1, the overall stability is good, which is convenient for operation and maintenance.

[0044] As Figures 1 to 4As shown in the figure, the screening mechanism 3 includes screening holes 31, a vibration frame 32, a limiting plate 33, limiting grooves 34, hinge columns 35, hinge grooves 36, and a power assembly 37. The screening holes 31 are arranged in an array on the conveying cover 25, and the screening holes 31 are used for screening raw materials; the vibration frame 32 is installed on the conveying cover 25, and the vibration frame 32 is used to drive the conveying cover 25 to vibrate periodically; the limiting plate 33 is installed on the fixed bracket 1, and the limiting plate 33 is used to limit the vibration frame 32; the limiting plate 33 is provided with limiting grooves 34 arranged in an array, and the limiting grooves 34 are used to limit the vibration frame 32; the vibration frame 32 passes through the limiting grooves 34, and the other end of the vibration frame 32 is provided with a hinge column 35, and the hinge column 35 is used to cooperate with the hinge groove 36 to make the vibration frame 32 move periodically; the hinge groove 36 is opened on the fixed bracket 1, and the hinge column 35 is installed inside the hinge groove 36; the power assembly 37 is installed on the fixed bracket 1, and the power assembly 37 is used to utilize the rotation of the driving rod 22 to realize the vibration of the vibration frame 32.

[0045] Specifically, the rotating ring 371 of the power assembly 37 rotates by the rotation of the driving rod 22. Since the transmission rod 373 contacts the rotating ring 371 and the driving block 3711 is provided on the rotating ring 371, during the rotation of the rotating ring 371, the transmission rod 373 will be pushed to move rightward by the driving block 3711 until the transmission rod 373 contacts the outermost end of the driving block 3711, that is, the transmission rod 373 drives the conveying cover 25 to vibrate. The vibrating conveying cover 25 drives the vibration frame 32 to vibrate. And during the process that the lowest point of the driving block 3711 in the rotating ring 373 rotates to the corresponding position of the transmission rod 373, the hinged vibration frame 32 will drive the entire conveying cover 25 to move leftward. And since the rotating ring 371 rotates continuously, the periodic left - right movement of the conveying cover 25 is realized, that is, the power assembly drives the vibration frame to vibrate by rotation.

[0046] The power assembly 37 drives the vibration frame 32 to move periodically, that is, the hinge column 35 drives the vibration frame 32 to move in the limiting groove 34. Through the linkage of the power assembly 37 and the driving rod 22, the periodic movement of the vibration frame 32 is ingeniously integrated into the raw material screening process. The power assembly 37 precisely drives the vibration frame 32 by means of the rotational movement of the driving rod 22, enabling it to vibrate regularly under the constraint of the limiting groove 34. This vibration method not only improves the screening efficiency, ensures that the part of the raw materials meeting the particle size requirements can smoothly pass through the screening holes 31, but also effectively avoids blockage, while ensuring the continuity and stability of the screening process, thus significantly improving the screening effect and quality.

[0047] As Figure 4 and Figure 7As shown, the width of the limiting groove 34 is consistent with the thickness of the vibration frame 32. By precisely matching the width of the limiting groove 34 with the thickness of the vibration frame 32, the vibration frame 32 is ensured to maintain a stable and precise motion trajectory during the vibration process. This precise dimensional matching effectively prevents excessive deviation or shaking of the vibration frame 32 during operation, thereby improving the stability of the screening process and the accuracy of the screening effect, ensuring that the screening holes 31 can efficiently screen the raw materials, while also extending the service life of the equipment and reducing equipment maintenance costs.

[0048] like Figure 4 and Figure 7 As shown, the power assembly 37 includes a rotating ring 371, a fixed plate 372 and a transmission rod 373. The rotating ring 371 is installed on the active rod 22, and the rotating ring 371 is used to rotate and drive the transmission rod 373 to move periodically; the fixed plate 372 is installed on the fixed bracket 1, and the transmission rod 373 is slidably installed in the fixed plate 372, that is, a through hole is opened in the fixed plate 372, and the transmission rod 373 is inserted into the through hole; the fixed plate 372 is used to limit the transmission rod 373; and the other end of the transmission rod 373 is in contact with the conveying cover 25, and the transmission rod 373 is used to drive the conveying cover 25 to move periodically.

[0049] The power assembly 37 cleverly utilizes the rotation of the active rod 22 to drive the periodic movement of the transmission rod 373 via the rotating ring 371, thereby achieving regular vibration of the conveyor cover 25. The fixed plate 372 limits the transmission rod 373, ensuring its stability during movement and preventing it from shifting or shaking. This improves the stability of the screening process and the reliability of the screening results. This transmission method not only improves screening efficiency but also enhances the durability of the equipment and reduces maintenance costs.

[0050] like Figure 8 As shown, the rotating ring 371 is symmetrically mounted with arc-shaped drive blocks 3711 for driving the transmission rod 373. These arc-shaped drive blocks 3711, symmetrically mounted on the rotating ring 371, enable the transmission rod 373 to achieve smooth, periodic movement when in contact with the drive blocks 3711. The arc-shaped design helps reduce contact stress, minimize wear, and extend component life. It also ensures smoother and more reliable movement of the transmission rod 373, thereby enhancing the overall stability of the screening mechanism 3 and the uniformity of the screening effect.

[0051] It should be noted that the end of the transmission rod 373 close to the driving block 3711 is in sliding contact with the arc-shaped surface on the driving block 3711. When the rotating ring 371 drives the driving block 3711 to rotate, since the driving block 3711 is an arc-shaped structure, the circumferential surface close to the transmission rod 373 contacts each other. As the rotating ring 371 drives the driving block 3711 to rotate, the transmission rod 373 slides from the lowest point of the concave arc surface of the driving block 3711 arc structure to the highest point of the convex arc surface. At the same time, it pushes the transmission rod 373 to slide in the through hole on the fixed plate 372, thereby pushing the conveying cover 25 to move to the right. When the conveying cover 25 moves to the far right with the vibrating frame 32, the vibrating frame 32 is in an inclined state at this time. Since the vibrating frame 32 is hinged to the fixed bracket 1, as the rotating ring 371 drives the driving block 3711 to continue to rotate, the end of the transmission rod 373 in contact with the driving block 3711 will It will slide in the opposite direction, from the highest point of the convex arc surface on the driving block 3711 to the concave arc surface. The power source for the reverse sliding of the transmission rod 373 is that the vibration frame 32 drives the conveying cover 25 to reset. Because when the vibration frame 32 is tilted, its center of gravity is always downward and will not change. Through its own gravity and the gravity of the conveying cover 25, it will drive the conveying cover 25 to move in the opposite direction and return to its original position. The vibration frame 32 is restored to the vertical state from the tilted state, thereby realizing the horizontal left and right movement of the transmission rod 373 once, and as the rotating ring 371 drives the driving block 3711 to continue to rotate, the transmission rod 373 is moved back and forth horizontally. Therefore, the transmission rod 373 produces a periodic reciprocating movement, thereby realizing the power component driving the vibration frame 32 to vibrate.

[0052] like Figure 5 As shown, an active arm 231 is installed on the driven rod 23, and the active arm 231 is used to drive the driven rod 23 to rotate; a fixed groove 221 corresponding to the active arm 231 is opened on the active rod 22, and the active arm 231 can slide in the fixed groove 221, that is, the driven rod 23 can periodically slide the driven rod 23 on the active rod 22 through the fixed groove 221.

[0053] This design enables the periodic sliding of driven rod 23 driven by power assembly 37, while also ensuring that driven rod 23 can stably drive the rotation of conveying blades 24, cleverly combining conveying and screening functions. This innovation not only improves equipment operating efficiency and meets the needs of various operating conditions, but also optimizes material conveying and screening effects, demonstrating the design's flexibility and practicality, enhancing equipment reliability, and reducing maintenance costs.

[0054] like Figure 4As shown, the transmission rod 373 is detachably installed on the conveying cover 25. The above structure improves the flexibility and adaptability of the equipment. When maintenance or replacement of the conveying cover 25 or the transmission rod 373 is required, or when the connection between the two needs to be adjusted according to different screening requirements, the detachable design provides great convenience, reduces the time and cost of maintenance and adjustment, and improves the maintenance efficiency and service life of the equipment.

[0055] As Figure 1 and 9 As shown, the collection mechanism 4 includes a conveying slide rail 41, a first collection box 42, a second collection box 43, a filter screen 44, and a drawer box 45. The conveying slide rail 41 is installed on the fixed bracket 1, and the conveying slide rail 41 is used to guide the raw materials into the first collection box 42; the conveying slide rail 41 corresponds one by one to the areas corresponding to the screening holes 31 of different diameters; the other end of the conveying slide rail 41 is installed with the first collection box 42; three first collection boxes 42 are arranged in parallel to realize the collection of raw materials of different sizes; the first collection box 42 is used to collect the screened raw materials of different sizes; one end of the conveying cover 25 is installed with the second collection box 43; the second collection box 43 is used to collect the waste materials after the final screening; the bottoms of the first collection box 42 and the second collection box 43 are provided with a filter screen 44, and the filter screen 44 is used to filter floating dust; the drawer box 45 is installed at the bottom of the filter screen 44, and the drawer box 45 is used to collect the collected floating dust.

[0056] During operation, the screening mechanism 3 with different diameters conveys the qualified raw materials screened out into the first collection box 42 through the conveying slide rail 41 for collection. At the same time, the floating dust is removed through the filter screen 44, and then the waste products after the final screening are conveyed to the second collection box 43 at the end of the conveying mechanism 2 for collection.

[0057] The design of the collection mechanism 4 realizes the precise guiding and classified collection of raw materials with different particle sizes through the one-to-one correspondence between the conveying slide rail 41 and the screening holes 31. The setting of the first collection box 42 and the second collection box 43 meets the multi-stage collection requirements. The filter screen 44 at the bottom effectively removes floating dust, and the cooperation with the drawer box 45 facilitates the centralized cleaning of impurities. This structure not only improves the efficiency and purity of material collection, but also simplifies the maintenance operation, reduces the cleaning cost, and the overall design is scientific and reasonable, effectively improving the practicability and reliability of the screw conveyor.

[0058] During the working process of the present invention: First, the staff adds raw materials into the conveying mechanism 2 from the feeding port 26. At this time, the rotating motor 21 is started, and the rotating motor 21 drives the driving rod 22 to rotate. The driving rod 22 cooperates with the fixing groove 221 on the driven rod 23 through the driving arm 231, driving the driven rod 23 to slide periodically. The rotation of the driven rod 23 further drives the conveying blade 24 to rotate. Under the limitation of the conveying cover 25, while the rotating conveying blade 24 drives the raw materials to move forward, the screening mechanism 3 starts to work.

[0059] In the screening mechanism 3, the power assembly 37 utilizes the rotation of the driving rod 22 to periodically drive the transmission rod 373 to move through the driving block 3711 on the rotating ring 371. The transmission rod 373 slides in the fixing plate 372 and transmits the periodic movement to the conveying cover 25, causing the conveying cover 25 to vibrate. The screening holes 31 on the conveying cover 25 are arranged in an array, and the aperture sizes increase successively along the conveying direction. The raw materials pass through the screening holes 31 with different aperture sizes in sequence during the conveying process, realizing multi-stage screening. The vibrating frame 32 moves in the limiting groove 34 of the limiting plate 33, ensuring the stability and regularity of the vibration of the conveying cover 25 and improving the screening effect.

[0060] The screened raw materials are guided to the first collection box 42 through the conveying slide rail 41 for collection. The conveying slide rail 41 corresponds to the screening holes 31 one by one, ensuring that raw materials with different particle sizes can be accurately classified. The finally screened qualified raw materials are conveyed into the first collection box 42 for collection. The bottoms of the first collection box 42 and the second collection box 43 are provided with filter meshes 44 for filtering the floating ash in the raw materials. The filtered floating ash falls into the drawer box 45, which is convenient for centralized cleaning.

[0061] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. However, any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A screw conveyor with a screening function, characterized in that, It includes a fixed bracket (1), a conveying mechanism (2), a screening mechanism (3) and a collecting mechanism (4). The conveying mechanism (2) is installed on the fixed bracket (1). The conveying mechanism (2) is used to convey the raw materials to the inside of the collecting mechanism (4). The screening mechanism (3) is installed on the conveying mechanism (2). The screening mechanism (3) is used to screen the materials. The screening mechanism (3) is used to screen the raw materials on the screw conveyor, so as to ensure that the qualified raw materials fall into the first collecting box (42). The collecting mechanism (4) is installed at one end of the conveying mechanism (2). The collecting mechanism (4) is used to collect the qualified raw materials after screening. The screening mechanism (3) includes screening holes (31), a vibrating frame (32), a limiting plate (33), a limiting groove (34), a hinged column (35), a hinged groove (36) and a power component (37). The screening holes (31) are installed on the conveying mechanism (2) in an array. The vibrating frame (32) is installed on the conveying mechanism (2). The limiting plate (33) is installed on the fixed bracket (1). The limiting grooves (34) are arranged on the limiting plate (33) in an array. The vibrating frame (32) passes through the limiting grooves (34). The other end of the vibrating frame (32) is provided with a hinged column (35). The hinged groove (36) is formed on the fixed bracket (1). The hinged column (35) is installed inside the hinged groove (36). The power component (37) is installed on the fixed bracket (1).

2. The screw conveyor with a screening function according to claim 1, wherein: The conveying mechanism (2) includes a rotating motor (21), a driving rod (22), a driven rod (23), conveying blades (24), a conveying cover (25) and a feeding port (26). The rotating motor (21) is installed on the fixed bracket (1). The output end of the rotating motor (21) is provided with the driving rod (22). The driven rod (23) is installed on the driving rod (22). The conveying blades (24) are installed on the driven rod (23). The conveying cover (25) is installed outside the conveying blades (24). The feeding port (26) is installed above the conveying cover (25).

3. The screw conveyor with screening function according to claim 2, characterized in that: The width of the limiting groove (34) is the same as the thickness of the vibrating frame (32).

4. The screw conveyor with a screening function according to claim 3, characterized in that: The power component (37) includes a rotating ring (371), a fixing plate (372) and a transmission rod (373). The rotating ring (371) is installed on the driving rod (22). The fixing plate (372) is installed on the fixed bracket (1). The transmission rod (373) is slidably installed in the fixing plate (372), and the other end of the transmission rod (373) contacts the conveying cover (25).

5. The screw conveyor with screening function according to claim 4, characterized in that: Driving blocks (3711) for driving the transmission rod (373) are symmetrically installed on the rotating ring (371). The driving blocks (3711) are arc-shaped.

6. The screw conveyor with a screening function according to claim 5, wherein: A driving arm (231) is mounted on the driven rod (23), a fixing groove (221) corresponding to the driving arm (231) is formed in the driving rod (22), and the driven rod (23) slides on the driving rod (22) through the fixing groove (221).

7. The screw conveyor with a screening function according to claim 6, characterized in that: The transmission rod (373) is detachably mounted on the conveying cover (25).

8. A screw conveyor with a screening function according to claim 7, characterized in that: The collection mechanism (4) includes a conveying slide rail (41), a first collection box (42), a second collection box (43), a filter screen (44) and a drawer box (45). The conveying slide rail (41) is mounted on the fixed bracket (1), and the conveying slide rail (41) corresponds one by one to the areas corresponding to the screening holes (31) with different diameters; a first collection box (42) is mounted at the other end of the conveying slide rail (41); three first collection boxes (42) are arranged in parallel; a second collection box (43) is mounted at one end of the conveying cover (25); filter screens (44) are arranged at the bottoms of the first collection box (42) and the second collection box (43), and a drawer box (45) is mounted at the bottom of the filter screen (44).

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