Drying oven for uniformly drying materials

Abstract

The drying oven comprises an air inlet chamber, a drying chamber, a plurality of rotary workbenches arranged in the drying chamber at intervals and a driving assembly arranged in the drying chamber, a heating device is arranged in the air inlet chamber, a first air inlet is formed in the drying chamber, and a second air inlet is formed in the drying chamber; the heating device is suitable for generating hot air and leading the hot air into the drying chamber, an air outlet is formed in the top of the drying chamber, the rotary workbench is suitable for placing materials, partition plates corresponding to the rotary workbench are arranged in the drying chamber, the rotary workbench is rotationally arranged on the corresponding partition plates, and the air outlet is formed in the top of the drying chamber. And hot air passes through all the rotary workbenches from bottom to top through the first air inlet, the driving assembly comprises a rotating mechanism and a plurality of different-direction mechanisms corresponding to the rotary workbenches, and the contact area between the materials and the hot air is increased by arranging the materials on the multiple layers of synchronous different-direction rotating workbenches for drying and disturbing airflow.

Description

Technical Field

[0001] The present invention relates to the technical field of drying equipment, and specifically, to an oven for uniformly drying materials. Background Art

[0002] At present, as a core device, ovens are widely used in industries such as chemical engineering, pharmaceuticals, food, and new materials. Traditional ovens achieve drying by statically placing materials or a single-layer rotating structure, but there are problems such as low efficiency and poor uniformity. To solve the above problems, the prior art has proposed a multi-layer co-rotating oven structure, which enhances air flow disturbance by synchronously rotating multiple material trays to improve drying efficiency. However, practical applications have shown that this solution still has certain defects.

[0003] After retrieval, it is found that Chinese Patent with publication number CN109140968B discloses a multi-layer rotating disk dryer, which includes a cylindrical drying chamber. The upper end of the rotating drum inside the chamber is open and the lower end is closed. Materials are fed from the feeding hopper at the top of the drying chamber, and the driving motor at the bottom drives the rotating drum to rotate through the driving shaft. A conical guiding plate and a baffle plate are provided inside the rotating drum, and the structure is simple and reasonable. This dryer makes the materials vibrate and disperse through a polarization mechanism, and then uses a blowing pipe in the opposite direction to the centrifugal direction for countercurrent drying, significantly improving the drying effect and having strong practicability. However, on the basis of multi-layer co-rotation, trying to achieve a turbulent flow effect by blowing air in the opposite direction, but the co-rotation and the co-directional reverse wind ultimately result in a relatively co-directional hot air flow. The air flow direction between the material layers is the same, and it is easy to form a laminar flow state with a fixed path. This not only reduces the heat transfer efficiency, but also generates a temperature gradient due to the difference in the accumulation form of materials (such as the edge and the central area), resulting in over-drying or under-drying in local areas. The unidirectional air flow generated by co-rotation is difficult to effectively penetrate the material layer, and moisture is easily retained in local areas and forms a saturated steam layer, hindering the subsequent drying process. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to overcome the defects existing in the prior art, and provide an oven for uniformly drying materials. By setting the materials on a multi-layer synchronously rotating and reversely rotating workbench for drying, the disturbed air flow increases the contact area between the materials and the hot air.

[0005] To solve the above technical problem, the technical solution of the present invention is an oven for uniformly drying materials, including: an air inlet chamber and a drying chamber. A heating device is provided inside the air inlet chamber. A first air inlet is opened inside the drying chamber. The heating device is adapted to generate hot air and introduce it into the drying chamber. An air outlet is provided at the top of the drying chamber; A plurality of rotary tables are arranged at intervals in the drying chamber. The rotary tables are adapted to place materials. Partition plates corresponding to the rotary tables are arranged in the drying chamber. The rotary tables are rotatably arranged on the corresponding partition plates. Hot air passes through all the rotary tables from bottom to top through the first air inlet. A driving assembly arranged in the drying chamber. The driving assembly includes a rotating mechanism and a plurality of reverse mechanisms corresponding to the rotary tables. The reverse mechanism is adapted to dock the corresponding rotary table with the rotating mechanism. The rotating mechanism is adapted to drive all the rotary tables to rotate. The reverse mechanism is adapted to make the rotation direction of the corresponding rotary table opposite to that of the adjacent rotary table.

[0006] Furthermore, a second air inlet is formed in the drying chamber. Through grooves penetrating through the partition plates are formed on a plurality of the partition plates. The second air inlet communicates with the through grooves. A connecting groove and a third air inlet are formed in the drying chamber. The connecting groove communicates with the through grooves. The connecting groove communicates with the third air inlet. Hot air is shunted into the second air inlet and passes through the through grooves and the connecting groove, and then is discharged from the third air inlet and passes through all the rotary tables from top to bottom, generating convection with the hot air passing through the first air inlet.

[0007] Furthermore, the rotating mechanism includes a driving motor and a rotating rod. The driving motor is connected to the rotating rod to drive the rotating rod to rotate. The reverse mechanism includes a first driving bevel gear, a first driven bevel gear, a connecting rod, a second driving bevel gear, and a second driven bevel gear. The first driving bevel gear meshes with the first driven bevel gear. The first driven bevel gear and the second driving bevel gear are fixedly connected by the connecting rod. The second driving bevel gear meshes with the second driven bevel gear. The rotary table includes a base and a placing plate. The base is rotatably arranged on the corresponding partition plate. The placing plate is inserted into the base. A screen is arranged in the placing plate. Materials are adapted to be placed on the screen. The pore diameters of the screens corresponding to each layer are different. The second driven bevel gear is fixedly sleeved on the outer peripheral surface of the base. In adjacent reverse mechanisms, the first driving bevel gear in one reverse mechanism meshes with the apex of the corresponding first driven bevel gear, and the first driving bevel gear in the other reverse mechanism meshes with the bottom of the corresponding first driven bevel gear.

[0008] Furthermore, a positioning platform is arranged on the base. A positioning groove is formed on the placing plate. The placing plate is inserted into the base so that the positioning groove abuts against the positioning platform. Threaded holes penetrating through the placement plate and the base are provided, and the threaded holes are adapted to pass through bolts to dock the placement plate with the base.

[0009] Further, a number of turning components corresponding to the rotary workbench are arranged in the drying chamber. The turning components include a rotating mechanism and turning rollers. The rotating mechanism is connected to the turning rollers to drive the turning rollers to rotate. Stirring plates are arranged on the turning rollers, and the stirring plates are adapted to drive the materials to move as they follow the turning rollers to rotate. The rotating mechanism includes a driving bevel gear and a first support rod. The first support rod is rotatably installed in the drying chamber. The driving bevel gear is fixedly sleeved outside the first support rod. The driving bevel gear meshes with the second driven bevel gear. The first support rod is connected to the turning roller.

[0010] Further, a cavity is formed inside the turning roller. Feeding ports and discharging ports are formed in the turning roller. The feeding ports and the discharging ports communicate with the cavity. The feeding ports are adjacent to the stirring plates, and the stirring plates are adapted to guide the materials in contact with them into the feeding ports. The materials tumble in the cavity and are discharged through the discharging ports.

[0011] Further, a number of cleaning components corresponding to the turning components are arranged in the drying chamber. The cleaning components include a linear movement mechanism and a cleaning ring. The cleaning ring is movably arranged outside the turning roller. The linear movement mechanism is connected to the cleaning ring to drive the cleaning ring to linearly move outside the turning roller, thereby cleaning the feeding ports and the discharging ports. A mating port penetrating through the cleaning ring is formed. The stirring plates are located in the mating port. A chute is formed in the turning roller. A sliding block is arranged on the inner ring of the cleaning ring. The sliding block is slidably arranged in the chute. First cleaning plates and second cleaning plates are arranged on the inner ring of the cleaning ring. The first cleaning plates correspond to the feeding ports and are in contact with the inner walls of the feeding ports. The second cleaning plates correspond to the discharging ports and are in contact with the inner walls of the discharging ports.

[0012] Further, the linear movement mechanism includes a driving gear, a driven gear, a reciprocating lead screw and a transmission sleeve. The driving gear is fixedly sleeved outside the first support rod. The driven gear is rotatably installed on the partition plate. The driven gear is connected to the reciprocating lead screw. The driving gear meshes with the driven gear. A bracket is arranged on the partition plate. The reciprocating lead screw is rotatably arranged in the bracket. The transmission sleeve is assembled outside the reciprocating lead screw. A moving plate is connected to the transmission sleeve. A rotating block is connected to the cleaning ring. The cross section of the rotating block is T-shaped. A T-shaped groove is formed in the moving plate. The rotating block is rotatably arranged in the T-shaped groove. The cleaning ring is adapted to rotate synchronously with the turning roller and perform a reciprocating linear motion outside the turning roller.

[0013] Further, a plurality of vibration components corresponding to the rotary workbench are arranged in the drying chamber. The vibration components include second support rods, cams, first springs, first trigger blocks and second trigger blocks. The second support rods are rotatably arranged on the partition plate. The cams are connected to the second support rods. The first springs are arranged outside the second support rods. One end of each first spring is connected to the partition plate, and the other end of each first spring is connected to the corresponding second support rod. The first trigger blocks and the second trigger blocks are both arranged on the outer peripheral surfaces of the second support rods. The lengths of the first trigger blocks and the second trigger blocks are different. The placing plate is provided with a first pushing block corresponding to the first trigger block and a second pushing block corresponding to the second trigger block. The first pushing block has a length equivalent to that of the first trigger block, and the second pushing block has a length equivalent to that of the second trigger block. When the placing plate is driven to rotate, it is adapted to drive the first pushing block and the second pushing block to alternately contact and press the corresponding first trigger block or second trigger block, thereby driving the cams to generate angular displacements of different amplitudes. A contact part is arranged on the cams. When the cams are driven to generate angular displacements, the contact parts are adapted to press the sieve mesh. The sieve mesh is slidably arranged in the placing plate. A first fixing ring is arranged inside the placing plate. A plurality of first sliding rods arranged at intervals are arranged at the bottom of the sieve mesh. The first sliding rods are slidably arranged in the first fixing ring. A second spring is arranged outside the first sliding rods. One end of the second spring is connected to the sieve mesh, and the other end of the second spring is connected to the first fixing ring.

[0014] Furthermore, a second fixing ring is arranged inside the base. A plurality of second sliding rods are slidably arranged inside the second fixing ring at intervals. The second sliding rods correspond to the first sliding rods. A third spring is arranged outside the second sliding rods. One end of the third spring is connected to the second sliding rod, and the other end of the third spring is connected to the second fixing ring. The first sliding rod is adapted to squeeze one end of the second sliding rod after the screen is squeezed; A switch sleeve is arranged at the other end of the second sliding rod. A second annular air inlet channel penetrating through itself is formed on the switch sleeve. A first annular air inlet channel penetrating through the base is formed on the base. The first annular air inlet channel communicates with the through groove. When the second sliding rod is squeezed and moves, it drives the switch sleeve to move, so that the first annular air inlet channel communicates with the second annular air inlet channel.

[0015] Adopting the above technical solutions, the present invention has the following beneficial effects: Through the arrangement of structures such as the multi-layer rotating workbench and the reverse mechanism, the design of the reverse mechanism driving adjacent rotating workbenches to rotate in opposite directions breaks the problem of uneven drying caused by the unidirectional flow of hot air in traditional ovens, eliminates the dead corners of hot air eddies, and significantly improves the drying uniformity. The pore size gradient of the screen built into the rotating workbench changes, and different particle size materials can be automatically classified during the same drying process. By changing the size relationship between the first air inlet and the second air inlet according to whether the pore size of the screen gradually increases or decreases from bottom to top, the effect of uniformly heating different sizes of materials at the same time can be achieved.

[0016] Through the arrangement of structures such as the turning component and the cleaning component, the structural design of the dialing plate in the turning component being linked with the feeding port and the discharging port automatically turns the materials during the rotary drying process and guides them to roll through the cavity, solving the problem of material accumulation and caking during traditional static drying. Cooperating with the cleaning component, the cleaning ring driven by the reciprocating lead screw dynamically sweeps the feeding port, the discharging port and the dialing plate, avoiding the blockage of the feeding port and the discharging port by material residues or materials, and also avoiding the problem that the materials adhere to the feeding port, the discharging port and the dialing plate for a long time due to high humidity, ensuring long-term stable operation.

[0017] By setting up the vibration component and structures such as the sieve mesh, when the rotary table rotates, the cam is triggered to apply periodic impact vibration to the sieve mesh, promoting the loose distribution of the material and synchronously adjusting the opening and closing state of the first annular air inlet passage. At this time, hot air is introduced from the second air inlet, rather than the first air inlet. The hot air introduced from the first air inlet and the third air inlet needs to pass through layers of sieve meshes, and there will be great losses even when the material is loosened. Therefore, introducing the hot air from the second air inlet with lower losses to dry the material at the same time when the material is vibrated further improves the drying effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic diagram of the overall structure of the present invention; Figure 2 is a schematic diagram of the internal structure of the drying chamber of the present invention Figure 1 ; Figure 3 is a schematic diagram of the internal structure of the drying chamber of the present invention Figure 2 ; Figure 4 is a schematic diagram of the structure of the driving component of the present invention; Figure 5 is a schematic diagram of the structure of the single-layer rotary table of the present invention Figure 1 ; Figure 6 is a schematic diagram of the structure of the single-layer rotary table of the present invention Figure 2 ; Figure 7 is a schematic diagram of the structure of the single-layer rotary table of the present invention Figure 3 ; Figure 8 is a schematic diagram of the structure of the base of the present invention; Figure 9 is a schematic diagram of the structure of the turning component of the present invention Figure 1 ; Figure 10 is a schematic diagram of the structure of the turning component of the present invention Figure 2 ; Figure 11 is a schematic diagram of the structure of the cleaning ring of the present invention; Figure 12 is a schematic diagram of the position of the shrinkage plate of the present invention; Figure 13 is a schematic diagram of the telescopic structure of the shrinkage plate of the present invention; Figure 14 is a schematic diagram of the structure of the vibration component of the present invention; Figure 15 is a schematic diagram of the telescopic structure of the sieve mesh of the present invention; Figure 16 is a schematic diagram of the structure of the switch of the first annular air inlet passage of the base of the present inventionFigure 1 ; Figure 17 Schematic diagram of the first annular air inlet switch structure of the base of the present invention Figure 2 ; Wherein: 11. Air inlet chamber; 12. Drying chamber; 13. First air inlet; 14. Second air inlet; 15. Third air inlet; 16. Air outlet; 17. Partition; 18. Through groove; 19. Connecting groove; 2. Rotary workbench; 21. Base; 22. Placing plate; 23. Sieve; 24. Positioning table; 25. Positioning groove; 26. Threaded hole; 27. Shrinking plate; 28. Tilted part; 29. Spring telescopic rod; 3. Driving assembly; 31. Driving motor; 32. Rotating rod; 33. First driving bevel gear; 34. First driven bevel gear; 35. Connecting rod; 36. Second driving bevel gear; 37. Second driven bevel gear; 4. Turning assembly; 41. Driving bevel gear; 42. First support rod; 43. Turning roller; 44. Poking plate; 45. Feed inlet; 46. Discharge outlet; 47. Driving gear; 48. Driven gear; 49. Bracket; 410. Reciprocating lead screw; 411. Transmission sleeve; 412. Moving plate; 413. Fitting port; 414. First cleaning plate; 415. Second cleaning plate; 416. Slide block; 417. Slide groove; 418. Rotating block; 419. Cleaning ring; 5. Vibration assembly; 51. Second support rod; 52. Cam; 53. Contact part; 54. First spring; 55. First trigger block; 56. Second trigger block; 57. First pushing block; 58. Second pushing block; 59. First fixing ring; 510. First sliding rod; 511. Second spring; 512. Second sliding rod; 513. Second fixing ring; 514. Third spring; 515. First annular air inlet channel; 516. Switch sleeve; 517. Second annular air inlet channel. Specific embodiments

[0019] In order to make the content of the present invention easier to be clearly understood, the present invention will be further described in detail below according to specific embodiments in conjunction with the accompanying drawings.

[0020] Embodiment 1: As Figure 1-4 shown, an oven for uniformly drying materials includes: an air inlet chamber 11 and a drying chamber 12. A heating device is arranged in the air inlet chamber 11. A first air inlet 13 is opened in the drying chamber 12. The heating device is adapted to generate hot air and introduce it into the drying chamber 12. An air outlet 16 is arranged at the top of the drying chamber 12; A plurality of rotary tables 2 arranged at intervals in the drying chamber 12, the rotary tables 2 being adapted to place materials, partition plates 17 corresponding to the rotary tables 2 are provided in the drying chamber 12, the rotary tables 2 are rotatably arranged on the corresponding partition plates 17, and hot air passes through all the rotary tables 2 from bottom to top through the first air inlet 13; A driving assembly 3 provided in the drying chamber 12, the driving assembly 3 includes a rotating mechanism and a reverse mechanism corresponding to the rotary table 2, the reverse mechanism is adapted to dock the corresponding rotary table 2 with the rotating mechanism, the rotating mechanism is adapted to drive all the rotary tables 2 to rotate, and the reverse mechanism is adapted to make the rotation direction of the corresponding rotary table 2 opposite to that of the adjacent rotary table 2.

[0021] As Figure 2 shown, a second air inlet 14 is provided in the drying chamber 12, through grooves 18 penetrating through themselves are provided on a plurality of partition plates 17, the second air inlet 14 communicates with the through grooves 18, a connecting groove 19 and a third air inlet 15 are provided in the drying chamber 12, the connecting groove 19 communicates with the through grooves 18, the connecting groove 19 communicates with the third air inlet 15, hot air is adapted to be shunted into the second air inlet 14 and pass through the through grooves 18 and the connecting groove 19, and then discharged from the third air inlet 15 and pass through all the rotary tables 2 from top to bottom, generating convection with the hot air passing through the first air inlet 13.

[0022] As Figure 4-6 shown, the rotating mechanism includes a driving motor 31 and a rotating rod 32, the driving motor 31 is connected to the rotating rod 32 to be adapted to drive the rotating rod 32 to rotate; The reverse mechanism includes a first driving bevel gear 33, a first driven bevel gear 34, a connecting rod 35, a second driving bevel gear 36 and a second driven bevel gear 37, the first driving bevel gear 33 meshes with the first driven bevel gear 34, the first driven bevel gear 34 and the second driving bevel gear 36 are fixedly connected by the connecting rod 35, and the second driving bevel gear 36 meshes with the second driven bevel gear 37; The rotary table 2 includes a base 21 and a placement plate 22, the base 21 is rotatably arranged on the corresponding partition plate 17, the placement plate 22 is inserted into the base 21, a screen 23 is arranged in the placement plate 22, materials are adapted to be placed on the screen 23, the apertures of the screens 23 corresponding to each layer are different, and the second driven bevel gear 37 is fixedly sleeved on the outer peripheral surface of the base 21; In adjacent reverse mechanisms, the first driving bevel gear 33 in one reverse mechanism meshes with the apex of the corresponding first driven bevel gear 34, and the first driving bevel gear 33 in the other reverse mechanism meshes with the bottom of the corresponding first driven bevel gear 34.

[0023] As Figure 7-8 、 Figure 12As shown in the figure, a positioning table 24 is provided on the base 21, and a positioning groove 25 is formed on the placement plate 22. The placement plate 22 is inserted into the base 21 so that the positioning groove 25 abuts against the positioning table 24; Threaded holes 26 penetrating through themselves are provided on both the placement plate 22 and the base 21. The threaded holes 26 are adapted to pass through bolts to dock the placement plate 22 and the base 21.

[0024] The working principle of this embodiment is as follows: The oven mainly includes two parts: a drying chamber 12 and an air inlet chamber 11. The heating device in the air inlet chamber 11 is responsible for introducing hot air into the interior of the drying chamber 12. The heating device mainly includes a heating element and a fan system. Different heating elements and fan systems are adopted according to different application occasions of the oven. This part is prior art and will not be elaborated in detail here; A plurality of partition plates 17 are provided in the drying chamber 12, dividing the entire internal space into multiple areas. A rotatable rotary worktable 2 is provided in each area. The rotary worktable 2 is divided into two parts: a base 21 and a placement plate 22. A screen 23 is provided in the placement plate 22. The screen 23 is used to place the materials to be dried. The pore sizes of the screens 23 corresponding to each layer are different. The partition plate 17 wraps the corresponding rotary worktable 2. The hot air generated by the heating device in the air inlet chamber 11 enters the interior of the drying chamber 12 through the first air inlet 13, and passes through each screen 23 layer by layer from bottom to top, and dries the materials thereon; Part of the hot air generated by the heating device passes through each layer of screen 23 through the first air inlet 13, and the other part enters the drying chamber 12 through the second air inlet 14 and passes through the through slots 18 on each partition plate 17. It should be noted that the hot air passing through the second air inlet 14 and the through slots 18 will not contact the rotary worktable 2 under the block of the partition plate 17. After the hot air passes through all the through slots 18, it enters the connection groove 19 in the top wall of the drying chamber 12 and is finally discharged through the third air inlet 15. The third air inlet 15 is located above the topmost screen 23. Therefore, the hot air discharged from the third air inlet 15 passes through all the screens 23 layer by layer from top to bottom, in the opposite direction to the hot air discharged from the first air inlet 13. Therefore, a convection cycle can be formed, strengthening the utilization rate of heat energy and making the heating of the materials more uniform. In this embodiment, the pore size of the screen 23 is set to gradually decrease from bottom to top. The materials closer to the first air inlet 13 are larger, and the materials closer to the first air inlet 13 absorb more heat. Therefore, the materials in the upper layer are not heated evenly enough. The problem of uneven heating of the smaller materials in the upper layer is avoided by the up and down convection method. The hot air introduced through the second air inlet 14 smaller than the first air inlet 13 is used for compensation so that the smaller materials in the upper layer can also obtain sufficient heat and will not be over-dried; While improving the uniformity of hot air flow, the entire rotary table 2 is also rotatably arranged. When the oven is in the working state, the driving motor 31 is started to drive the rotating rod 32 to rotate. The rotation of the rotating rod 32 drives the first driving bevel gear 33 to rotate. Then, through the meshing of the first driving bevel gear 33 and the first driven bevel gear 34, the first driven bevel gear 34 rotates. The first driven bevel gear 34 is connected to the connecting rod 35 to drive the second driving bevel gear 36 to rotate. The second driving bevel gear 36 meshes with the second driven bevel gear 37 to make the second driven bevel gear 37 rotate. The second driven bevel gear 37 is sleeved outside the base 21, so the base 21 can be driven to rotate synchronously. Thus, all the bases 21 rotate in the same direction. However, there are still many dead corners during the process of hot air flow. Therefore, the meshing positions of the first driving bevel gear 33 and the first driven bevel gear 34 corresponding to two adjacent rotary tables 2 are changed. For example, all the rotary tables 2 are divided into odd layers and even layers. The positions of the first driven bevel gears 34 corresponding to each layer remain unchanged. The first driving bevel gear 33 of the odd layer meshes with the lower part of the corresponding first driven bevel gear 34, while the first driving bevel gear 33 of the even layer meshes with the upper part of the corresponding first driven bevel gear 34. By changing the meshing positions, the effect that the first driven bevel gears 34 corresponding to the odd layer and the even layer rotate in opposite directions is achieved, that is, the first driven bevel gears 34 corresponding to two adjacent rotary tables 2 rotate in opposite directions. Under the condition that other transmission structures remain unchanged, the opposite rotation directions of the first driven bevel gears 34 result in the opposite rotation directions of the rotary tables 2 corresponding to the odd layer and the even layer, that is, two adjacent rotary tables 2 rotate in opposite directions. A single drive source realizes synchronous and adjacent opposite rotation of multiple rotary tables 2, breaking the fixed air flow pattern formed by the same-direction rotation. The shear force generated by the reverse rotation makes the hot air form a staggered flow between layers, reducing local eddy currents and avoiding the retention of hot air in specific areas. On the basis of the up-and-down convection of the hot air, a horizontal disturbance is superimposed to form a three-dimensional dynamic air flow network, covering more areas and significantly reducing the drying dead corners. When two adjacent rotary tables 2 rotate in opposite directions, the air flow directions near their surfaces are opposite, forming an air flow velocity gradient. This velocity difference generates a shear stress in the air flow between the two layers, acting on the surface of the material and promoting the loosening of the agglomerates, such as the mutual pulling effect of the air flow between two reversely rotating fans; A temperature sensor, a humidity sensor, etc. are arranged inside the inner shell of the drying chamber 12 to facilitate monitoring the drying state of the internal material and controlling the opening time of the air outlet 16. When the air outlet 16 is opened, the moisture is discharged. This part is the prior art and will not be elaborated here. The air outlet 16 is controlled by a separate electric control valve and is closed during the non-exhaust stage without affecting the normal operation of the third air inlet 15; The placement plate 22 is detachably arranged. During the preparation stage before the drying operation starts, after opening the drying chamber 12, the materials to be dried are placed on the screen 23 inside the placement plate 22, and then the placement plate 22 is horizontally inserted into the base 21. During the insertion process, the positioning platform 24 on the base 21 contacts the positioning groove 25 on the placement plate 22 to form a preliminary positioning. After the positioning is completed, bolts are passed through the threaded holes 26 on the placement plate 22 and the base 21 to achieve the docking between the placement plate 22 and the base 21.

[0025] Embodiment 2: As Figure 9 shown, on the basis of Embodiment 1, this embodiment further includes the following structure: A number of turning components 4 corresponding to the rotary table 2 are arranged inside the drying chamber 12. The turning component 4 includes a rotating mechanism and a turning roller 43. The rotating mechanism is connected to the turning roller 43 to drive the turning roller 43 to rotate. A dialing plate 44 is arranged on the turning roller 43, and the dialing plate 44 is adapted to rotate with the turning roller 43 to drive the materials to move. The rotating mechanism includes a driving bevel gear 41 and a first support rod 42. The first support rod 42 is rotatably installed inside the drying chamber 12. The driving bevel gear 41 is fixedly sleeved outside the first support rod 42. The driving bevel gear 41 meshes with the second driven bevel gear 37, and the first support rod 42 is connected to the turning roller 43.

[0026] As Figure 12-13 shown, a groove is formed on the placement plate 22. A spring telescopic rod 29 is arranged inside the groove. A retractable plate 27 is arranged on the spring telescopic rod 29. The position of the retractable plate 27 corresponds to that of the dialing plate 44. An inclined portion 28 is arranged on the outer contour of the retractable plate 27.

[0027] As Figure 10 shown, a cavity is formed inside the turning roller 43. A feed inlet 45 and a discharge outlet 46 are formed on the turning roller 43. Both the feed inlet 45 and the discharge outlet 46 communicate with the cavity. The feed inlet 45 is adjacent to the dialing plate 44. The dialing plate 44 is adapted to guide the materials in contact with it into the feed inlet 45. The materials tumble in the cavity and are discharged through the discharge outlet 46.

[0028] As Figure 10-11 shown, a number of cleaning components corresponding to the turning components 4 are arranged inside the drying chamber 12. The cleaning component includes a linear movement mechanism and a cleaning ring 419. The cleaning ring 419 is movably arranged outside the turning roller 43. The linear movement mechanism is connected to the cleaning ring 419 to drive the cleaning ring 419 to linearly move outside the turning roller 43, so as to clean the feed inlet 45 and the discharge outlet 46. The cleaning ring 419 is provided with a mating opening 413 that passes through the cleaning ring 419, the toggle plate 44 is located in the mating opening 413, the flip roller 43 is provided with a slide groove 417, the inner ring of the cleaning ring 419 is provided with a slider 416, the slider 416 is slidably set in the slide groove 417, the inner ring of the cleaning ring 419 is provided with a first cleaning plate 414 and a second cleaning plate 415, the first cleaning plate 414 corresponds to the feed port 45, the first cleaning plate 414 contacts the inner wall of the feed port 45, the second cleaning plate 415 corresponds to the discharge port 46, and the second cleaning plate 415 contacts the inner wall of the discharge port 46.

[0029] like Figure 9-10 As shown, the linear motion mechanism includes a driving gear 47, a driven gear 48, a reciprocating screw rod 410 and a transmission sleeve 411; The driving gear 47 is fixedly sleeved on the outside of the first support rod 42, and the driven gear 48 is rotatably installed on the partition 17. The driven gear 48 is connected to the reciprocating screw rod 410, and the driving gear 47 is meshed with the driven gear 48. A bracket 49 is provided on the partition 17, and the reciprocating screw rod 410 is rotatably set in the bracket 49. The transmission sleeve 411 is assembled on the outside of the reciprocating screw rod 410. The transmission sleeve 411 is connected to the moving plate 412, and the cleaning ring 419 is connected to the rotating block 418. The cross section of the rotating block 418 is T-shaped, and a T-shaped groove is opened in the moving plate 412. The rotating block 418 is rotatably set in the T-shaped groove. The cleaning ring 419 is suitable for rotating synchronously with the flipping roller 43, and reciprocating linear motion outside the flipping roller 43.

[0030] The working principle of this embodiment is as follows: When the rotary table 2 rotates, the second driven bevel gear 37 is also in a rotating state. The first support rod 42 is rotated by meshing the second driven bevel gear 37 with the driving bevel gear 41. The first support rod 42 drives the turning roller 43 to rotate during the rotation. The toggle plate 44 provided on the turning roller 43 contacts the material on the corresponding screen 23. The material is pushed onto the toggle plate 44 when the rotary table 2 rotates. The material in contact with the toggle plate 44 is thrown up when the turning roller 43 rotates, so as to achieve the effect of continuously turning the material. The turning roller 43 where the toggle plate 44 is not provided can play the role of spreading the material, and the accumulated material is spread on the screen 23 by squeezing and pushing, so that the material is heated more evenly. The dialing plate 44 is limited by its own size, resulting in a limited number of materials turned over each time, and the lifted materials are uncontrollable, prone to falling. Therefore, the turning roller 43 is hollow. When the rotary table 2 rotates, the materials are pushed towards the position of the dialing plate 44. The materials pushed onto the dialing plate 44 enter the interior of the turning roller 43 along the dialing plate 44 through the feed port 45. The materials tumble inside the turning roller 43 as the turning roller 43 rotates until the turning roller 43 rotates to the discharge port 46 and contacts the internal materials. The materials fall from the discharge port 46 and return to the screen 23 again. Throughout the process, the materials are located inside the turning roller 43, and the turning position is controllable and will not fall out of the range of the screen 23. Moreover, when inside the turning roller 43, under the influence of the self-rotation of the turning roller 43, the materials have a greater turning amplitude, and the heat transfer effect after the materials are turned over when leaving the turning roller 43 is better. The turning roller 43 itself is made of a material with good thermal conductivity, and it can also play a drying effect when the materials are turning inside. It should be noted that since the turning roller 43 is hollow and the first support rod 42 is solid, the first support rod 42 can provide sufficient support for the turning roller 43, or the two use different materials to achieve the effect that the first support rod 42 can provide sufficient support force; In another embodiment, the turning roller 43 is provided with a mesh. On the basis of being hollow, when the materials enter the interior of the turning roller 43 and keep turning, the mesh design can enable the materials to be dried synchronously when turning inside the turning roller 43. Compared with the turning roller 43 made of a material with good thermal conductivity, the mesh turning roller 43 has a more direct heat transfer effect on the materials; When the humidity of the materials is relatively high, turning the materials by the turning roller 43 will cause some materials to stick or remain on the feed port 45, the discharge port 46, and the dialing plate 44. Whether it is sticking or remaining, it will cause blockage of the turning roller 43 after gradual drying. Therefore, a cleaning component is provided. When the first support rod 42 rotates, it drives the driving gear 47 to rotate. The rotation of the reciprocating screw rod 410 is realized through the meshing of the driving gear 47 and the driven gear 48. The transmission sleeve 411 assembled outside the reciprocating screw rod 410 will move linearly back and forth along the axis of the reciprocating screw rod 410. The reciprocating screw rod 410 and the transmission sleeve 411 can be assembled through a ball nut. The self-rotation of the reciprocating screw rod 410 to drive the transmission sleeve 411 to move back and forth is a prior art and will not be elaborated in detail here. The transmission sleeve 411 is connected to the moving plate 412, and the moving plate 412 is connected to the cleaning ring 419. When the cleaning ring 419 follows the transmission sleeve 411 to move linearly back and forth, it scrapes and cleans the feed port 45, the discharge port 46, and the dialing plate 44; The cleaning ring 419 is provided with matching openings 413, and the toggle plate 44 is located between the matching openings 413. During the linear movement of the cleaning ring 419, the contact portion of the matching openings 413 and the toggle plate 44 cleans the toggle plate 44. The cleaning ring 419 is also provided with a first cleaning plate 414 corresponding to and in contact with the feed port 45 and a second cleaning plate 415 corresponding to and in contact with the discharge port 46. When the cleaning ring 419 moves, the first cleaning plate 414 and the second cleaning plate 415 are driven to move synchronously, and the feed port 45 and the discharge port 46 are scraped and cleaned accordingly during the movement. Since the cleaning work is carried out synchronously during the operation of the rotating worktable 2 and the flipping roller 43, the flipping roller 43 is in a rotating state. At this time, the cleaning ring 419 needs to rotate with the flipping roller 43, while the moving plate 412 and the transmission sleeve 411 only make linear motion. Therefore, a T-shaped rotating block 418 is arranged outside the cleaning ring 419. The rotating block 418 moves in the T-shaped groove provided in the moving plate 412 to realize the setting that the cleaning ring 419 is rotated relative to the moving plate 412. The moving plate 412 is an incomplete circle to avoid interference with the toggle plate 44. During the linear movement of the moving plate 412, it does not contact the toggle plate 44 and the material. Due to the incomplete setting of the moving plate 412, the T-shaped rotating block 418 and the T-shaped groove are required to cooperate to avoid disconnection between the cleaning ring 419 and the moving plate 412. No matter how the cleaning ring 419 rotates following the flipping roller 43, the rotating block 418 always remains partially connected to the moving plate 412. It should be noted that the distance between the cleaning ring 419 and the moving plate 412 needs to be greater than the length of the toggle plate 44 to avoid interference when the toggle plate 44 rotates to the moving plate 412. At the same time, the matching opening 413 does not fully cover the entire toggle plate 44, and can only clean part of the toggle plate 44, but can avoid excessive contact between the cleaning ring 419 and the material. Inclined guides are provided on both sides of the cleaning ring 419, because the cleaning ring 419 moving in a straight line will block the material that is originally going to enter the inside of the flip roller 43. Therefore, the setting of the guide can divert the material to both sides, and enter the flip roller 43 normally from other places, thereby reducing the influence of the cleaning ring 419 on the normal operation of the flip roller 43. In order to ensure the stable connection and movement stability between the cleaning ring 419 and the flip roller 43, a slide groove 417 is provided on the flip roller 43, and a slider 416 is provided inside the cleaning ring 419. The slider 416 is slidably arranged in the slide groove 417, thereby improving the stability of the connection and movement. In order to ensure the movement stability of the transmission sleeve 411, a guide rod is fixedly arranged in the bracket 49, and the transmission sleeve 411 is movably sleeved on the outside of the guide rod. When the reciprocating screw rod 410 drives the transmission sleeve 411 to move linearly, the transmission sleeve 411 also slides on the outside of the guide rod. When the rotary table 2 and the turning roller 43 are both in the initial state and have not started to rotate, the position of the dial plate 44 on the turning roller 43 does not face the screen 23. At this time, the placing plate 22 can be normally horizontally inserted into the base 21 to complete the docking after receiving the material. However, in case of abnormal problems, the initial position of the dial plate 44 may face the screen 23. At this time, if the placing plate 22 is directly horizontally inserted into the base 21, it will interfere with the dial plate 44. Therefore, a retractable shrinkage plate 27 is provided at a position on the placing plate 22 opposite to the position of the dial plate 44. An inclined portion 28 is provided on the shrinkage plate 27. A spring telescopic rod 29 is provided inside the placing plate 22 to support and contract the shrinkage plate 27. When the placing plate 22 is inserted into the base 21, one side inclined portion 28 of the shrinkage plate 27 contacts the dial plate 44 first. After contact, the dial plate 44 squeezes the shrinkage plate 27. When the dial plate 44 passes through, the shrinkage plate 27 is reset by the spring telescopic rod 29. During disassembly, the same principle applies, and interference with the dial plate 44 is avoided through the expansion and contraction of the shrinkage plate 27. However, the abnormal position of the dial plate 44 will inevitably affect the materials on the screen 23. Therefore, special attention should be paid to the initial position of the dial plate 44 during equipment debugging and assembly.

[0031] Embodiment 3: As Figure 14-15 、 Figure 6 shown, on the basis of Embodiment 1, this embodiment further includes the following structure: A plurality of vibration components 5 corresponding to the rotary table 2 are provided in the drying chamber 12. The vibration components 5 include a second support rod 51, a cam 52, a first spring 54, a first trigger block 55, and a second trigger block 56; The second support rod 51 is rotatably provided on the partition plate 17. The cam 52 is connected to the second support rod 51. The first spring 54 is provided outside the second support rod 51. One end of the first spring 54 is connected to the partition plate 17, and the other end of the first spring 54 is connected to the second support rod 51. The first trigger block 55 and the second trigger block 56 are both provided on the outer peripheral surface of the second support rod 51, and the lengths of the first trigger block 55 and the second trigger block 56 are different; A first push block 57 corresponding to the first trigger block 55 and a second push block 58 corresponding to the second trigger block 56 are provided on the placing plate 22. The first push block 57 has a length equivalent to that of the first trigger block 55, and the second push block 58 has a length equivalent to that of the second trigger block 56; When the placing plate 22 is adapted to be driven to rotate, it drives the first push block 57 and the second push block 58 to alternately contact and squeeze the corresponding first trigger block 55 or second trigger block 56, thereby driving the cam 52 to produce angular offsets of different amplitudes. A contact portion 53 is provided on the cam 52. When the cam 52 is adapted to be driven to produce an angular offset, it squeezes the screen 23 through the contact portion 53; The screen 23 is slidably arranged in the placement plate 22. A first fixing ring 59 is arranged inside the placement plate 22. A plurality of first sliding rods 510 arranged at intervals are arranged at the bottom of the screen 23. The first sliding rods 510 are slidably arranged in the first fixing ring 59. A second spring 511 is arranged outside the first sliding rods 510. One end of the second spring 511 is connected to the screen 23, and the other end of the second spring 511 is connected to the first fixing ring 59.

[0032] As Figure 16-17 shown, a second fixing ring 513 is arranged inside the base 21. A plurality of second sliding rods 512 distributed at intervals are slidably arranged in the second fixing ring 513. The second sliding rods 512 correspond to the first sliding rods 510. A third spring 514 is arranged outside the second sliding rods 512. One end of the third spring 514 is connected to the second sliding rod 512, and the other end of the third spring 514 is connected to the second fixing ring 513. The first sliding rod 510 is adapted to squeeze one end of the second sliding rod 512 when the screen 23 is squeezed; A switch sleeve 516 is arranged at the other end of the second sliding rod 512. A second annular air inlet channel 517 penetrating through itself is arranged on the switch sleeve 516. A first annular air inlet channel 515 penetrating through the base 21 is arranged on the base 21. The first annular air inlet channel 515 is communicated with the through groove 18. When the second sliding rod 512 is squeezed and moves, it drives the switch sleeve 516 to move, so that the first annular air inlet channel 515 is communicated with the second annular air inlet channel 517.

[0033] The working principle of this embodiment is as follows: The screen 23 is slidably arranged on the corresponding placement plate 22. A first fixing ring 59 is fixedly arranged in the placement plate 22. A plurality of second springs 511 are arranged on the fixing ring to support the screen 23. In this setting, the screen 23 has a certain range of longitudinal movement ability. A second support rod 51 is rotatably arranged on the partition plate 17. The second support rod 51 supports the cam 52. When the cam 52 is in the initial state, its contact part 53 does not contact the screen 23. When the second support rod 51 is driven to deflect at an angle, it drives the cam 52 to rotate. The contact part 53 of the rotated cam 52 squeezes the screen 23. After being squeezed, the screen 23 is reset by the second spring 511. After resetting, it has the effect of vibrating the materials on the screen 23. It should be noted that the second support rod 51 needs to have sufficient supporting force for the cam 52; On the placement plate 22, there are a first pushing block 57 and a second pushing block 58 with different lengths. On the second support rod 51, there are a first contact block and a second contact block. The position and size of the first contact block correspond to those of the first pushing block 57, and the position and size of the second contact block correspond to those of the second pushing block 58. Taking the first pushing block 57 being shorter than the second pushing block 58 as an example, during the rotation of the placement plate 22, the shorter first pushing block 57 contacts the first contact block and causes extrusion on the first contact block. After being extruded, the first contact block drives the entire second support rod 51 to have an angular offset, thereby causing an angular offset of the cam 52. At this time, the contact portion 53 squeezes the screen 23. When the continuously moving first pushing block 57 separates from the first contact block, the first contact block loses the thrust brought by the first pushing block 57. The second support rod 51 is reset through the setting of the first spring 54. The first spring 54 is not distorted when the second support rod 51 is in the initial state, but when the second support rod 51 has an angular offset, the first spring 54 will be distorted. Therefore, when the second support rod 51 loses thrust subsequently, the first spring 54 will automatically reset, driving the second support rod 51 and the cam 52 to reset at the same time. The contact portion 53 of the cam 52 releases the extrusion on the screen 23, and the second spring 511 realizes the reset of the screen 23. At this time, the screen 23 will vibrate the material, achieving the effect of loosening the material. Similarly, the cooperation between the second pushing block 58 and the second contact block is the same as above, except that the second pushing block 58 is longer. Therefore, the angle of rotation of the cam 52 driven is larger, the extrusion amplitude on the screen 23 is larger, and the vibration generated by the reset of the screen 23 is larger. Therefore, the shorter first pushing block 57 generates a smaller vibration, while the longer second pushing block 58 generates a larger vibration. The smaller vibration realizes the effect of dispersing the material, and the larger vibration realizes the effect of breaking the material agglomeration; It should be noted that the installation quantity and installation spacing of the first pushing block 57 and the second pushing block 58 can be adjusted according to the type of material to be dried actually, and flexibly perform corresponding regular automatic dispersion and anti - caking treatment for various materials; A first sliding rod 510 is also provided at the bottom of the screen 23, and the first sliding rod 510 passes through the second spring 511 and the first fixing ring 59. When the screen 23 is squeezed, the first sliding rod 510 will move downward, and a second fixing ring 513 is provided on the inner side of the base 21. A retractable second sliding rod 512 and a third spring 514 for providing support and reset for the second sliding rod 512 are provided on the second fixing ring 513. The first sliding rod 510 corresponds to the second sliding rod 512 in position. When the first sliding rod 510 moves downward, the second sliding rod 512 is squeezed, and a switch cover 516 is provided on the surface of the second sliding rod 512 that does not contact the first sliding rod 510, and a second annular air inlet 517 is provided on the switch cover 516. The base 21 is provided with a third spring 514. An annular air inlet 515. When the second sliding rod 512 is squeezed and moved downward, it will push the switch sleeve 516 to move downward, so that the first annular air inlet 515 and the second annular air inlet 517 are connected. The first annular air inlet 515 can introduce the hot air passing through the second air inlet 14 and the through groove 18 into the second annular air inlet 517. When the cam 52 no longer squeezes the screen 23, the screen 23 and the first sliding rod 510 are reset by the second spring 511. After the second sliding rod 512 loses the pressure brought by the first sliding rod 510, it is reset by the third spring 514. At this time, the switch sleeve 516 is also reset. After the switch sleeve 516 is reset, the first annular air inlet 515 and the second annular air inlet 517 are staggered, so that the hot air cannot pass through the second annular air inlet 517. This arrangement allows a low-loss hot air to quickly contact the material through the second annular air inlet 517 during the process of dispersing or breaking up lumps of the material. The screen 23 vibrates the material at the moment of resetting after being squeezed. While the material is vibrating, it will contact the hot air passing through the second annular air inlet 517. The hot air introduced by the first air inlet 13 will have a large loss after passing through the layers of screens 23, and some layers of material cannot get enough heat. Therefore, the second annular air inlet 517 is arranged to introduce low-loss hot air at the moment of material vibration to accelerate the drying speed of the material, so that all the materials are dried more evenly as a whole. It should be noted that The first push block 57 and the second push block 58 trigger different amplitudes of squeezing the screen 23. When the longer second push block 58 squeezes the screen 23, the screen 23 drops more and the vibration generated by resetting is greater, so that the lumps can be broken and the switch sleeve 516 is driven to move a greater distance. The movement of the switch sleeve 516 triggered by the second push block 58 makes the first annular air inlet 515 and the second annular air inlet 517 completely connected, while the first push block 57 triggers partial connection, and the air intake volume generated is also different, which means that more hot air will be introduced in the process of breaking the lumps to assist the operation of breaking the lumps. In another embodiment, when the screen 23 drives the material to generate vibration, it is also a screening process. The screens 23 with different pore sizes in each layer not only support the material but also play a role in screening. The pore size of the partition screen 23 is set to gradually increase from bottom to top. When the material does not match the corresponding screen 23, after multiple vibrations, the unmatched material will fall downward to achieve the grading effect. The material above is larger, and the material below is smaller. When adopting this setting, the first air inlet 13 needs to be set smaller than the second air inlet 14 to avoid excessive drying of the small material when the small material is closest to the first air inlet 13.

[0034] The specific embodiments described above further elaborate on the technical problems solved, technical solutions, and beneficial effects of the present invention. It should be understood that the above are only specific embodiments of the present invention and are not used to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims

1. An oven for uniform drying of materials, characterized in that: include: An air inlet chamber (11) and a drying chamber (12), wherein a heating device is provided in the air inlet chamber (11), a first air inlet (13) is provided in the drying chamber (12), the heating device is suitable for generating hot air and passing hot air into the drying chamber (12), and an air outlet (16) is provided at the top of the drying chamber (12); A plurality of rotating worktables (2) are arranged at intervals in the drying chamber (12), the rotating worktables (2) being suitable for placing materials, a partition (17) corresponding to the rotating worktable (2) is provided in the drying chamber (12), the rotating worktable (2) is rotatably arranged on the corresponding partition (17), and hot air passes through all the rotating worktables (2) from bottom to top through the first air inlet (13); A driving assembly (3) is arranged in the drying chamber (12), the driving assembly (3) comprising a rotating mechanism and a plurality of different direction mechanisms corresponding to the rotating worktables (2), the different direction mechanisms being suitable for docking the corresponding rotating worktable (2) with the rotating mechanism, the rotating mechanism being suitable for driving all the rotating worktables (2) to rotate, and the different direction mechanisms being suitable for making the corresponding rotating worktable (2) rotate in the opposite direction to the adjacent rotating worktable (2).

2. The oven for uniform drying of materials according to claim 1, characterized in that: A second air inlet (14) is provided in the drying chamber (12); a plurality of the partitions (17) are provided with through grooves (18) penetrating the partitions; the second air inlet (14) is in communication with the through grooves (18); a connecting groove (19) and a third air inlet (15) are provided in the drying chamber (12); the connecting groove (19) is in communication with the through grooves (18); the connecting groove (19) is in communication with the third air inlet (15); hot air is diverted into the second air inlet (14) and passes through the through grooves (18) and the connecting grooves (19); and then is discharged from the third air inlet (15) and passes through all the rotating worktables (2) from top to bottom, generating convection with the hot air passing through the first air inlet (13).

3. The oven for uniform drying of materials according to claim 2, characterized in that: The rotating mechanism comprises a driving motor (31) and a rotating rod (32); the driving motor (31) is connected to the rotating rod (32) so as to be suitable for driving the rotating rod (32) to rotate; The different-direction mechanism comprises a first driving bevel gear (33), a first driven bevel gear (34), a connecting rod (35), a second driving bevel gear (36) and a second driven bevel gear (37); the first driving bevel gear (33) is meshed with the first driven bevel gear (34); the first driven bevel gear (34) is fixedly connected with the second driving bevel gear (36) via the connecting rod (35); and the second driving bevel gear (36) is meshed with the second driven bevel gear (37); The rotary workbench (2) comprises a base (21) and a placement plate (22), wherein the base (21) is rotatably arranged on the corresponding partition plate (17), the placement plate (22) is plugged into the base (21), a screen (23) is arranged inside the placement plate (22), the screen (23) is suitable for placing materials, and the apertures of the screens (23) corresponding to each layer are different, and the second driven bevel gear (37) is fixedly sleeved on the outer peripheral surface of the base (21); In adjacent different-direction mechanisms, the first driving bevel gear (33) in one different-direction mechanism meshes with the cone top of the corresponding first driven bevel gear (34), and the first driving bevel gear (33) in the other different-direction mechanism meshes with the cone bottom of the corresponding first driven bevel gear (34).

4. The oven for uniform drying of materials according to claim 3, characterized in that: The base (21) is provided with a positioning platform (24), the placement plate (22) is provided with a positioning groove (25), and the placement plate (22) is plugged into the base (21) so that the positioning groove (25) abuts against the positioning platform (24); The placement plate (22) and the base (21) are both provided with threaded holes (26) penetrating therethrough, and the threaded holes (26) are suitable for passing bolts to enable the placement plate (22) to dock with the base (21).

5. The oven for uniform drying of materials according to claim 3, characterized in that: A plurality of turning assemblies (4) corresponding to the rotating worktable (2) are arranged in the drying chamber (12), the turning assemblies (4) comprising a rotating mechanism and a turning roller (43), the rotating mechanism being connected to the turning roller (43) so as to drive the turning roller (43) to rotate, a toggle plate (44) being arranged on the turning roller (43), the toggle plate (44) being adapted to rotate along with the turning roller (43) so as to drive the material to move; The rotating mechanism comprises a driving bevel gear (41) and a first support rod (42); the first support rod (42) is rotatably mounted in the drying chamber (12); the driving bevel gear (41) is fixedly sleeved on the outside of the first support rod (42); the driving bevel gear (41) is meshed with the second driven bevel gear (37); and the first support rod (42) is connected to the turning roller (43).

6. The oven for uniform drying of materials according to claim 5, characterized in that: A cavity is formed in the flip roller (43), and a feed port (45) and a discharge port (46) are formed on the flip roller (43). The feed port (45) and the discharge port (46) are both in communication with the cavity. The feed port (45) is adjacent to the flip plate (44). The flip plate (44) is suitable for guiding material in contact with the flip plate into the feed port (45), and the material is discharged through the discharge port (46) after rolling in the cavity.

7. The oven for uniform drying of materials according to claim 6, characterized in that: A plurality of cleaning components corresponding to the turning components (4) are arranged in the drying chamber (12), the cleaning components comprising a linear moving mechanism and a cleaning ring (419), the cleaning ring (419) being movably arranged outside the turning roller (43), the linear moving mechanism being connected to the cleaning ring (419) so as to drive the cleaning ring (419) to move linearly outside the turning roller (43), thereby cleaning the feed port (45) and the discharge port (46); The cleaning ring (419) is provided with a mating opening (413) penetrating the cleaning ring, the toggle plate (44) is located in the mating opening (413), the flip roller (43) is provided with a slide groove (417), the inner ring of the cleaning ring (419) is provided with a slider (416), the slider (416) is slidably arranged in the slide groove (417), the inner ring of the cleaning ring (419) is provided with a first cleaning plate (414) and a second cleaning plate (415), the first cleaning plate (414) corresponds to the feed port (45), the first cleaning plate (414) contacts the inner wall of the feed port (45), the second cleaning plate (415) corresponds to the discharge port (46), the second cleaning plate (415) contacts the inner wall of the discharge port (46).

8. The oven for uniform drying of materials according to claim 7, characterized in that: The linear motion mechanism comprises a driving gear (47), a driven gear (48), a reciprocating screw rod (410) and a transmission sleeve (411); The driving gear (47) is fixedly sleeved on the outside of the first support rod (42), the driven gear (48) is rotatably mounted on the partition (17), the driven gear (48) is connected to the reciprocating screw rod (410), the driving gear (47) is meshed with the driven gear (48), a bracket (49) is provided on the partition (17), the reciprocating screw rod (410) is rotatably arranged in the bracket (49), and the transmission sleeve (411) is assembled on the reciprocating screw rod (410). Outside the multifilament rod (410), a moving plate (412) is connected to the transmission sleeve (411), a rotating block (418) is connected to the cleaning ring (419), the rotating block (418) has a T-shaped cross section, a T-shaped groove is provided in the moving plate (412), the rotating block (418) is rotatably arranged in the T-shaped groove, and the cleaning ring (419) is suitable for synchronously rotating with the turning roller (43) and reciprocating linearly moving outside the turning roller (43).

9. The oven for uniform drying of materials according to claim 3 or 8, characterized in that: A plurality of vibration components (5) corresponding to the rotating worktable (2) are arranged in the drying chamber (12), and the vibration components (5) include a second support rod (51), a cam (52), a first spring (54), a first trigger block (55), and a second trigger block (56); The second support rod (51) is rotatably arranged on the partition (17), the cam (52) is connected to the second support rod (51), the first spring (54) is arranged outside the second support rod (51), one end of the first spring (54) is connected to the partition (17), and the other end of the first spring (54) is connected to the second support rod (51), the first trigger block (55) and the second trigger block (56) are both arranged on the outer peripheral surface of the second support rod (51), and the lengths of the first trigger block (55) and the second trigger block (56) are different; The placement plate (22) is provided with a first push block (57) corresponding to the first trigger block (55) and a second push block (58) corresponding to the second trigger block (56); the first push block (57) is of the same length as the first trigger block (55), and the second push block (58) is of the same length as the second trigger block (56); The placement plate (22) is adapted to drive the first push block (57) and the second push block (58) to alternately contact and squeeze the corresponding first trigger block (55) or second trigger block (56) when driven to rotate, thereby driving the cam (52) to produce angular deviations of different magnitudes. A contact portion (53) is provided on the cam (52). The cam (52) is adapted to squeeze the screen (23) through the contact portion (53) when driven to produce angular deviations. The screen (23) is slidably arranged in the placement plate (22), a first fixing ring (59) is arranged on the inner side of the placement plate (22), a plurality of first sliding rods (510) arranged at intervals are arranged at the bottom of the screen (23), the first sliding rods (510) are slidably arranged in the first fixing ring (59), a second spring (511) is arranged on the outside of the first sliding rod (510), one end of the second spring (511) is connected to the screen (23), and the other end of the second spring (511) is connected to the first fixing ring (59).

10. The oven for uniform drying of materials according to claim 9, characterized in that: A second fixing ring (513) is arranged on the inner side of the base (21), a plurality of second sliding rods (512) are slidably arranged inside the second fixing ring (513) and are spaced apart from each other, the second sliding rods (512) correspond to the first sliding rods (510), a third spring (514) is arranged outside the second sliding rod (512), one end of the third spring (514) is connected to the second sliding rod (512), and the other end of the third spring (514) is connected to the second fixing ring (513), and the first sliding rod (510) is suitable for squeezing one end of the second sliding rod (512) when the screen (23) is squeezed; A switch sleeve (516) is provided on the other end of the second sliding rod (512), and a second annular air inlet (517) is provided on the switch sleeve (516) and passes through the switch sleeve. A first annular air inlet (515) is provided on the base (21) and passes through the base. The first annular air inlet (515) is communicated with the through groove (18). When the second sliding rod (512) is squeezed and moved, the switch sleeve (516) is driven to move, thereby making the first annular air inlet (515) communicate with the second annular air inlet (517).

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