A new type of multi-layer box drying machine

Abstract

The present invention discloses a novel multi-layer box-type drying machine, which relates to the field of material dehumidification and drying, and comprises a drying box body, wherein a plurality of air inlet holes are provided at the bottom of the drying box body, and exhaust holes less than the number of the air inlet holes are provided at the top of the drying box body, and a hot air conveying cabinet is fixedly installed at the bottom of the drying box body, and the hot air conveying cabinet covers the plurality of air inlet holes. The present invention can dry a large amount of materials through a multi-layer conveying drying mechanism and a material lifting mechanism, and the materials are piled up in a hopper, and the materials are evenly flowed onto the multi-layer conveying drying mechanism through a lower port of the hopper, and multi-layer transmission and drying treatment is carried out. The dried materials will be sent back to the hopper by the material lifting mechanism, thereby forming a cyclic drying process. Through the cyclic multi-layer drying treatment, more materials can be dried at the same working time, and there is no need to worry about the uneven drying caused by the accumulation of materials in the hopper.

Description

Technical Field

[0001] The invention relates to the field of material dehumidification and drying, and in particular to a novel multi-layer box-type drying machine. Background Art

[0002] Multi-layer box dryers are mostly used for drying vegetables, fruits, and Chinese medicinal materials. Vegetables, fruits, Chinese medicinal materials and other materials that need to be dried are placed on the rack, and then the rack is inserted into the shelf, and finally the shelf is pushed into the drying box for drying.

[0003] In the existing multi-layer box dryers, the materials to be dried are laid flat on the racks and cannot be stacked, otherwise the stacked materials inside cannot be completely dried. This results in that although the materials can be dried in multiple layers, the materials on the racks are laid flat, which means that the overall amount of materials in the dryer is not large for each drying operation. If a large amount of materials is to be dried, many batch dryings are required. When a large amount of materials is to be dried, the drying efficiency is not high. For this reason, we propose a new multi-layer box dryer. Summary of the invention

[0004] The object of the present invention is to provide a novel multi-layer box-type drying machine to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solutions: a novel multi-layer box-type drying machine, comprising a drying box, a plurality of air inlet holes are provided at the bottom of the drying box, an exhaust hole less than the number of the air inlet holes is provided at the top of the drying box, a hot air conveying cabinet is fixedly installed at the bottom of the drying box, and the hot air conveying cabinet covers the plurality of the air inlet holes, and the hot air conveying cabinet conveys hot air to the inside of the drying box through the air inlet holes, a hopper is fixedly mounted on the top of the drying box, and a cover plate is hingedly provided on the top of the hopper;

[0006] It also includes a multi-layer conveying and drying mechanism, which is used to carry out multi-layer alternating conveying and drying treatment on the materials, and the multi-layer conveying and drying mechanism is arranged inside the drying box; a material lifting mechanism, which is used to lift the conveyed materials to the top again for cyclic drying, and the material lifting mechanism is arranged on the outside of the multi-layer conveying and drying mechanism, and the materials to be dried are pre-assembled inside the hopper through an openable and closable cover plate.

[0007] Preferably, the multi-layer conveyor drying mechanism includes at least two first air-permeable conveyor toothed belts and a second air-permeable conveyor toothed belts arranged inside the drying box body, the number of the first air-permeable conveyor toothed belts and the second air-permeable conveyor toothed belts is the same, and a plurality of the first air-permeable conveyor toothed belts and a plurality of the second air-permeable conveyor toothed belts are staggered from top to bottom, the length of the first air-permeable conveyor toothed belt and the second air-permeable conveyor toothed belt are the same, the first air-permeable conveyor toothed belt and the second air-permeable conveyor toothed belt are offset back and forth, and the offset is between 1 / 8 and 1 / 5 of the total length of the first air-permeable conveyor toothed belt, and both ends of the interior of each of the first air-permeable conveyor toothed belts are equipped with a first transmission gear, and a rotating through-gear is fixedly installed inside the first transmission gear. The first rotating shaft of the drying box body, the ends of the first rotating shaft located on the same side are fixedly sleeved with second synchronous gears, and a second synchronous toothed belt is transmission-assembled between a plurality of second synchronous gears, the inner ends of each of the second air-permeable conveying toothed belts are transmission-assembled with second transmission gears, and the inner part of the second transmission gear is fixedly installed with a second rotating shaft that rotates and passes through the drying box body, the ends of the second rotating shaft located on the same side are fixedly installed with third synchronous gears, and a third synchronous toothed belt is transmission-assembled between a plurality of third synchronous gears, and a transmission component is also provided on the outside of the drying box body, wherein the widths of the first air-permeable conveying toothed belt and the second air-permeable conveying toothed belt are consistent, and the gap between the two and the inner wall of the drying box body is not enough for materials to be stuck inside.

[0008] Preferably, the transmission component includes a second motor fixedly mounted on the outer wall of the drying box body, the output end of the second motor is fixedly docked with the end of one of the first rotating shaft or the second rotating shaft, wherein the ends of the two first rotating shafts and the second rotating shafts close to each other are fixedly sleeved with driving gears, and the two driving gears close to each other are meshed with each other. Through the two meshing driving gears, the conveying directions of the first air permeable conveyor toothed belt and the second air permeable conveyor toothed belt that are staggered can be opposite, so that multi-level transmission and drying processing of the material can be achieved.

[0009] Preferably, the inner wall of the drying box is also fixedly mounted with a plurality of relatively distributed guide inclined plates, the function of the guide inclined plates is to prevent the material from spilling when the material layer is changed, so as to ensure that the material can fall onto the first air-permeable conveyor toothed belt or the second air-permeable conveyor toothed belt.

[0010] Preferably, the material lifting mechanism includes a conveying cylinder fixedly arranged at one end of the interior of the drying box, and the conveying cylinder passes through the drying box, the top of the drying box is connected to the side of the hopper, and a feeding port is provided at the bottom of the drying box, and the upper edge and the lower edge of the feeding port are inclined upward to extend a guide arc plate and an arc-shaped converging inclined plate respectively, the guide arc plate is fixedly extended to the interior of the drying box, and the arc-shaped converging inclined plate is fixedly docked with the bottom of the drying box, a material dropping area is formed between the guide arc plate, the arc-shaped converging inclined plate and the drying box, and the conveying cylinder A conveying shaft is installed on the internal coaxial line, and the top of the conveying shaft rotates and passes through the conveying cylinder, a first motor is fixedly arranged on the top of the conveying cylinder, and the output end of the first motor is fixedly connected to the top of the conveying shaft, and a spiral blade is fixedly sleeved on the outer surface of the conveying shaft, and an opening and closing closure component is arranged at the bottom of the conveying cylinder, and an auxiliary feeding component is arranged on the outside of the arc-shaped converging inclined plate, and the materials conveyed in sequence will enter the inside of the feed port through the dropping area, so that the materials are in contact with the spiral blades, and the gap between the spiral blades and the conveying cylinder is very small, so that the materials will not be stuck between the two.

[0011] Preferably, the auxiliary feeding component includes an air duct fixedly arranged on the outer wall of the arc-shaped converging inclined plate, and the air duct is communicated with the interior of the blanking area, the air duct is inclined, and the lower end port is inclined toward the feed port, and the end of the air duct away from the arc-shaped converging inclined plate is fixedly installed with an impeller, and the end of the air duct away from the arc-shaped converging inclined plate is fixedly installed with a gear speed increaser, and the output end of the gear speed increaser is fixedly connected to the rotating rod of the impeller, and an optical axis is rotatably installed at the bottom of the drying box body, and the outer surface of the optical axis and the output end of the gear speed increaser are fixedly installed with bevel gears, and the two bevel gears are meshed with each other, and the two ends of the optical axis are also fixedly installed with a fourth synchronous gear, and the fourth synchronous gear is matched with the second synchronous toothed belt or the third synchronous toothed belt transmission. During the multi-layer transmission and drying process of the material, the impeller is driven by the gear speed increaser to rotate rapidly to supply air to the position of the feed port.

[0012] Preferably, the closing component includes a stop block movably embedded in the inner side of the bottom of the conveying cylinder, and the bottom of the conveying shaft and the spiral blade are in movably contact with the stop block, a bottom cover is fixedly installed on the bottom of the stop block, and the outer diameter of the bottom cover is larger than the outer diameter of the stop block, an edge ring is provided on the outer surface of the bottom of the conveying cylinder, at least two limiting shafts are fixedly provided on the outside of the bottom cover, and the limiting shafts slide through the edge ring, a threaded rod is fixedly installed at the center of the stop block, and the threaded rod is movably embedded in the bottom of the conveying shaft, and an internally threaded sleeve is rotatably provided on the inner wall of the bottom of the conveying shaft, the internally threaded sleeve is threadedly matched with the threaded rod, and a clamping piece is provided between the internally threaded sleeve and the conveying shaft, and the cooperation between the limiting shaft and the edge ring can limit the bottom cover and the stop block to axial displacement.

[0013] Preferably, the engaging part includes a plurality of chucks slidably embedded in the internal threaded sleeve and equidistantly distributed around the circumference, and the axis of the chuck is parallel to the axis of the internal threaded sleeve, one end of the chuck is fixedly mounted with a dome brake rod that slides through the internal threaded sleeve, and a spring is provided between the other end of the chuck and the internal threaded sleeve, and a plurality of arc-shaped grooves that engage with the end of the dome brake rod are also provided on the inner wall of the conveying shaft. Since the stop block can only be displaced axially, when the conveying shaft rotates with the internal threaded sleeve, the engagement of the internal threaded sleeve with the threaded rod can change the position of the threaded rod.

[0014] Preferably, when the conveying shaft rotates with the spiral blade to convey the material downward, the internal threaded sleeve rotates with the conveying shaft to engage and drive the threaded rod to move downward, so that when the conveying shaft reverses with the spiral blade, the bottom cover can also be automatically opened.

[0015] Preferably, the bottom of the hopper is in an inverted trapezoidal shape, and a discharge port is provided at the bottom of the hopper, slots are provided on the two lower oblique sides of the hopper, and a first synchronous toothed belt is slidably sleeved between each of the slots and the extended edge of the discharge port, the inner wall of the first synchronous toothed belt is slidably fitted with the hopper, a first synchronous gear is meshed and installed below each of the first synchronous toothed belts, and a transmission shaft that rotates and passes through the drying box body is fixedly installed inside the first synchronous gear, and the two transmission shafts are respectively assembled with one of the first rotating shafts and the second rotating shaft through a fifth synchronous gear and a fifth synchronous toothed belt transmission, wherein the two first synchronous toothed belts are synchronous reverse transmissions.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] The present invention can dry a large amount of materials through the design of a multi-layer conveying drying mechanism and a material lifting mechanism. The materials are piled up in a hopper, and the materials are evenly flowed onto the multi-layer conveying drying mechanism through the lower port of the hopper for multi-level transmission and drying treatment. The dried materials will be returned to the hopper by the material lifting mechanism, thereby forming a cyclic drying process. Through the cyclic multi-level drying treatment, more materials can be dried in the same working time without worrying about the uneven drying caused by the accumulation of materials in the hopper. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0019] Figure 2 This is a schematic diagram of the internal structure of the drying box of the present invention;

[0020] Figure 3 It is a front cross-sectional view of the present invention;

[0021] Figure 4 For the present invention Figure 3 Enlarged view of point A in the middle;

[0022] Figure 5 For the present invention Figure 3 Enlarged view of point B in the middle;

[0023] Figure 6 This is a schematic diagram of the position distribution structure of two driving gears of the present invention;

[0024] Figure 7 This is a schematic diagram of the structure of the stop block and the threaded rod of the present invention;

[0025] Figure 8 For the present invention Figure 7 Enlarged view of point C in the middle.

[0026] In the figure: 1. drying box; 2. hot air conveying cabinet; 3. first air permeable conveying toothed belt; 4. first rotating shaft; 5. first transmission gear; 6. second air permeable conveying toothed belt; 7. second rotating shaft; 8. second transmission gear; 9. guide inclined plate; 10. hopper; 11. conveying cylinder; 12. bottom cover; 13. conveying shaft; 14. spiral blade; 15. first motor; 16. second motor; 17. optical axis; 18. air duct; 19. impeller; 20. gear speed increaser; 21. notch; 22. transmission shaft; 23. first synchronous gear; 24. first synchronous toothed belt; 25. stop block; 26. threaded rod; 27. limit shaft; 28. internal threaded sleeve; 29. ​​chuck; 30. spring; 31. dome brake rod; 32. arc slot; 33. guide arc plate; 34. driving gear. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] Example 1: Please refer to Figure 1-Figure 4 A new type of multi-layer box-type drying machine shown in the figure includes a drying box body 1, a plurality of air inlet holes are opened at the bottom of the drying box body 1, and exhaust holes less than the number of air inlet holes are opened at the top of the drying box body 1. A hot air conveying cabinet 2 is fixedly installed at the bottom of the drying box body 1, and the hot air conveying cabinet 2 covers the plurality of air inlet holes. The hot air conveying cabinet 2 conveys hot air to the inside of the drying box body 1 through the air inlet holes. A hopper 10 is fixedly mounted on the top of the drying box body 1, and a cover plate is hingedly provided on the top of the hopper 10;

[0029] It also includes a multi-layer conveying and drying mechanism, which is used to carry out multi-layer alternating conveying and drying treatment on the materials, and the multi-layer conveying and drying mechanism is arranged inside the drying box 1; a material lifting mechanism, which is used to lift the conveyed materials to the top again for cyclic drying, and the material lifting mechanism is arranged on the outside of the multi-layer conveying and drying mechanism, and the materials to be dried are pre-assembled inside the hopper 10 through an openable and closable cover.

[0030] The multi-layer conveyor drying mechanism includes at least two first air-permeable conveyor toothed belts 3 and second air-permeable conveyor toothed belts 6 arranged inside the drying box body 1, the number of the first air-permeable conveyor toothed belts 3 and the second air-permeable conveyor toothed belts 6 is the same, and a plurality of the first air-permeable conveyor toothed belts 3 and a plurality of the second air-permeable conveyor toothed belts 6 are staggered from top to bottom, the lengths of the first air-permeable conveyor toothed belts 3 and the second air-permeable conveyor toothed belts 6 are the same, the first air-permeable conveyor toothed belts 3 and the second air-permeable conveyor toothed belts 6 are offset back and forth, and the offset is between 1 / 8 and 1 / 5 of the total length of the first air-permeable conveyor toothed belts 3, both ends of each first air-permeable conveyor toothed belt 3 are equipped with first transmission gears 5, and a rotating gear 5 that runs through the drying box body 1 is fixedly installed inside the first transmission gear 5 The first rotating shaft 4, the ends of the first rotating shaft 4 located on the same side are fixedly sleeved with second synchronous gears, and a second synchronous belt is installed between several second synchronous gears, both ends of the inside of each second air-permeable conveying toothed belt 6 are installed with second transmission gears 8, and the inside of the second transmission gear 8 is fixedly installed with a second rotating shaft 7 that rotates and runs through the drying box body 1, the ends of the second rotating shaft 7 located on the same side are fixedly installed with third synchronous gears, and a third synchronous belt is installed between several third synchronous gears, and a transmission component is also provided on the outside of the drying box body 1, wherein the widths of the first air-permeable conveying toothed belt 3 and the second air-permeable conveying toothed belt 6 are consistent, and the gap between the two and the inner wall of the drying box body 1 is not enough for the material to be stuck inside.

[0031] The transmission component includes a second motor 16 fixedly mounted on the outer wall of the drying box body 1, and the output end of the second motor 16 is fixedly connected to the end of one of the first rotating shafts 4 or the second rotating shaft 7, wherein the ends of the two first rotating shafts 4 and the second rotating shafts 7 close to each other are fixedly sleeved with driving gears 34, and the two driving gears 34 close to each other are meshed with each other. Through the two meshing driving gears 34, the conveying directions of the staggered first air-permeable conveying toothed belts 3 and the second air-permeable conveying toothed belts 6 can be opposite, so that the material can be transported and dried at multiple levels.

[0032] The inner wall of the drying box 1 is also fixedly mounted with a plurality of relatively distributed guide inclined plates 9, the function of which is to prevent the material from spilling when the material layer is changed, so as to ensure that the material can fall onto the first air-permeable conveyor toothed belt 3 or the second air-permeable conveyor toothed belt 6.

[0033] The material lifting mechanism includes a conveying cylinder 11 fixedly arranged at one end of the drying box 1, and the conveying cylinder 11 passes through the drying box 1, the top of the drying box 1 is connected to the side of the hopper 10, and a feeding port is provided at the bottom of the drying box 1, and the upper edge and the lower edge of the feeding port are inclined upward to extend a guide arc plate 33 and an arc-shaped converging inclined plate respectively, the guide arc plate 33 is fixedly extended to the inside of the drying box 1, and the arc-shaped converging inclined plate is fixedly connected to the bottom of the drying box 1, and a material dropping area is formed between the guide arc plate 33, the arc-shaped converging inclined plate and the drying box 1, and a conveying cylinder 11 is coaxially installed inside the coaxial line. The conveying shaft 13 is a top part of the conveying cylinder 11, and the top of the conveying shaft 13 rotates and passes through the conveying cylinder 11. A first motor 15 is fixedly arranged on the top of the conveying cylinder 11, and the output end of the first motor 15 is fixedly connected to the top of the conveying shaft 13. A spiral blade 14 is also fixedly sleeved on the outer surface of the conveying shaft 13. An opening and closing closure component is arranged at the bottom of the conveying cylinder 11, and an auxiliary feeding component is arranged on the outside of the arc-shaped converging inclined plate. The materials conveyed in sequence will enter the inside of the feed port through the dropping area, so that the materials will contact with the spiral blade 14. The gap between the spiral blade 14 and the conveying cylinder 11 is very small, and the materials will not be stuck between the two.

[0034] The auxiliary feeding component includes an air duct 18 fixedly arranged on the outer wall of the arc-shaped converging inclined plate, and the air duct 18 is communicated with the interior of the blanking area, the air duct 18 is inclined, and the lower end is inclined toward the feed port, and the end of the air duct 18 away from the arc-shaped converging inclined plate is rotatably equipped with an impeller 19, and the end of the air duct 18 away from the arc-shaped converging inclined plate is fixedly equipped with a gear speed increaser 20, and the output end of the gear speed increaser 20 is fixedly connected to the rotating rod of the impeller 19, and the bottom of the drying box body 1 is rotatably equipped with an optical axis 17, and the outer surface of the optical axis 17 and the output end of the gear speed increaser 20 are fixedly equipped with bevel gears, and the two bevel gears are meshed with each other. The two ends of the optical axis 17 are also fixedly equipped with fourth synchronous gears, and the fourth synchronous gear is matched with the second synchronous toothed belt or the third synchronous toothed belt transmission. During the multi-layer transmission and drying process of the material, the impeller 19 is driven by the gear speed increaser 20 to rotate rapidly to supply air to the position of the feed port.

[0035] There is no need to worry about uneven drying caused by material accumulation, and the working principle of drying materials in large quantities is:

[0036] The staff will pile all the materials to be dried (such as fruit and vegetable pieces, Chinese medicinal material pieces, etc.) in the hopper 10 in advance, and then close the cover on the hopper 10, and then start the first motor 15, the second motor 16 and the hot air conveying cabinet 2, and the hot air conveying cabinet 2 will continuously convey hot air to the inside of the drying box 1 from bottom to top. Figure 2As shown, the material inside the hopper 10 falls evenly onto the top of the first air-permeable conveying toothed belt 3 through the port at the bottom of the hopper 10, and the second motor 16 drives the first rotating shaft 4 to rotate, and under the meshing action of the two driving gears 34, a plurality of first air-permeable conveying toothed belts 3 and second air-permeable conveying toothed belts 6 can be driven, such as the first air-permeable conveying toothed belt 3 drives clockwise and the second air-permeable conveying toothed belt 6 drives counterclockwise, so that the material can be transported down layer by layer, and each time the material switches the drying layer, the material will be turned over, so that the material can be dried more evenly;

[0037] After the material passes through the last layer of drying, it will enter the material drop area and enter the bottom of the conveying cylinder 11. Under the rotation of the conveying shaft 13 with the spiral blade 14, the material that has been dried once can be transported upward again until it returns to the inside of the hopper 10, allowing the dried material to pass through the hopper 10 again and fall onto the first layer of conveyor belt for drying. Through the above-mentioned cyclic drying process, the material accumulated in the hopper 10 can be replaced all the time, and the material can be turned over during the material layer changing process, so that large quantities of materials can be dried without considering the problem of uneven drying caused by material accumulation.

[0038] As the material loses water during the circulating drying process, its volume will shrink and its weight will decrease. In order to ensure that the material can be more securely transported upward by the spiral blades 14, in this solution, the second motor 16 will also drive the optical axis 17 to rotate, and under the action of the gear speed increaser 20, the impeller 19 will rotate rapidly to send air toward the bottom of the conveying cylinder 11. Under the action of the wind, the material in the falling area can be pushed to a certain extent, pushing the lighter material into the interior of the conveying cylinder 11, thereby ensuring the effectiveness of the material being transported upward by the spiral blades 14.

[0039] Example 2: Please refer to Figure 6-Figure 8 , this embodiment is a further explanation of embodiment 1, the closing component includes a stopper 25 movably embedded in the inner side of the bottom of the conveying cylinder 11, and the bottom of the conveying shaft 13 and the spiral blade 14 are in movable contact with the stopper 25, the bottom of the stopper 25 is fixedly installed with a bottom cover 12, and the outer diameter of the bottom cover 12 is larger than the outer diameter of the stopper 25, the bottom outer surface of the conveying cylinder 11 is provided with an edge ring, at least two limiting shafts 27 are fixedly provided on the outside of the bottom cover 12, and the limiting shaft 27 slides through the edge ring, a threaded rod 26 is fixedly installed at the center of the stopper 25, and the threaded rod 26 is movably embedded in the bottom of the conveying shaft 13, and an internal threaded sleeve 28 is rotatably provided on the inner wall of the bottom of the conveying shaft 13, the internal threaded sleeve 28 is threadedly matched with the threaded rod 26, and a clamping piece is provided between the internal threaded sleeve 28 and the conveying shaft 13, through the cooperation of the limiting shaft 27 and the edge ring, the bottom cover 12 and the stopper 25 can be limited to axial displacement.

[0040] The engaging member includes a plurality of chucks 29 slidably embedded in the internal threaded sleeve 28 and distributed equidistantly around the circumference, and the axis of the chuck 29 is parallel to the axis of the internal threaded sleeve 28. A dome brake rod 31 slidably passing through the internal threaded sleeve 28 is fixedly installed at one end of the chuck 29, and a spring 30 is arranged between the other end of the chuck 29 and the internal threaded sleeve 28. A plurality of arc-shaped grooves 32 engaged with the ends of the dome brake rod 31 are also provided on the inner wall of the conveying shaft 13. Since the stop block 25 can only be displaced axially, when the conveying shaft 13 rotates with the internal threaded sleeve 28, the engagement of the internal threaded sleeve 28 with the threaded rod 26 can change the position of the threaded rod 26.

[0041] When the conveying shaft 13 rotates with the spiral blade 14 to convey the material downward, the internal threaded sleeve 28 rotates with the conveying shaft 13 to engage and drive the threaded rod 26 to move downward, so that when the conveying shaft 13 reverses with the spiral blade 14, the bottom cover 12 can also be automatically opened.

[0042] In this embodiment: when the conveying shaft 13 rotates with the spiral blade 14 to convey the material upward, the threaded rod 26 and the stop block 25 have moved upward to the maximum value, that is, when the conveying shaft 13 is still conveying the material upward, the internal threaded sleeve 28 and the threaded rod 26 are locked, so that the conveying shaft 13 continuously pushes the dome brake rod 31 through the arc groove 32, so that the dome brake rod 31 continuously shrinks into the inner part of the internal threaded sleeve 28;

[0043] When the material is dried and needs to be discharged, the conveying shaft 13 rotates with the spiral blade 14 in the opposite direction mentioned above. At this time, the conveying shaft 13 can be reversed with the internal threaded sleeve 28 through the engagement of the dome brake rod 31 and the arc groove 32, and then the internal threaded sleeve 28 is engaged with the threaded rod 26, so that the threaded rod 26 moves downward with the stop block 25 and the bottom cover 12, opens the bottom of the conveying cylinder 11, and under the push of the spiral blade 14, the dried material is automatically discharged from the inside of the drying box 1.

[0044] Example 3: Please refer to Figure 5This embodiment is a further explanation of the embodiment 1. The bottom of the hopper 10 is in an inverted trapezoidal shape, and a discharge port is provided at the bottom of the hopper 10. Notches 21 are provided on the two lower oblique sides of the hopper 10, and a first synchronous toothed belt 24 is slidably sleeved between each notch 21 and the extended edge of the discharge port. The inner wall of the first synchronous toothed belt 24 is slidably fitted with the hopper 10. A first synchronous gear 23 is meshed and installed below each first synchronous toothed belt 24, and a transmission shaft 22 that rotates and runs through the drying box body 1 is fixedly installed inside the first synchronous gear 23. The two transmission shafts 22 are respectively assembled with one of the first rotating shafts 4 and the second rotating shaft 7 through the fifth synchronous gear and the fifth synchronous toothed belt transmission, wherein the two first synchronous toothed belts 24 are synchronously reversely driven.

[0045] In this embodiment: Figure 5 As shown in the figure, the first synchronous toothed belt 24 on the left rotates clockwise. During the clockwise rotation of the first synchronous toothed belt 24, the convex teeth on the surface can play a certain role in moving the materials accumulated inside the hopper 10, so that the materials accumulated inside the hopper 10 can be discharged downward more stably and continuously.

[0046] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0047] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A new type of multi-layer box drying machine, characterized in that: include: A drying box (1), wherein a plurality of air inlet holes are provided at the bottom of the drying box (1), and exhaust holes less than the number of the air inlet holes are provided at the top of the drying box (1); a hot air conveying cabinet (2) is fixedly installed at the bottom of the drying box (1), and the hot air conveying cabinet (2) covers the plurality of air inlet holes, and the hot air conveying cabinet (2) conveys hot air into the interior of the drying box (1) through the air inlet holes; a hopper (10) is fixedly mounted on the top of the drying box (1), and a cover plate is hingedly provided on the top of the hopper (10); It also includes: a multi-layer conveying and drying mechanism, used for performing multi-layer alternating conveying and drying processing on the material, the multi-layer conveying and drying mechanism being arranged inside the drying box (1); A material lifting mechanism, used to lift the conveyed material to the top again for cyclic drying, the material lifting mechanism is arranged on the outside of the multi-layer conveying drying mechanism; The material lifting mechanism comprises a conveying cylinder (11) fixedly arranged at one end of the drying box (1), and the conveying cylinder (11) passes through the drying box (1), the top of the drying box (1) is connected to the side of the hopper (10), the bottom of the drying box (1) is provided with a feeding port, and the upper edge and the lower edge of the feeding port are inclined upward to extend a guide arc plate (33) and an arc-shaped converging inclined plate respectively, the bottom of the conveying cylinder (11) is provided with an opening and closing closing component, and the outside of the arc-shaped converging inclined plate is provided with an auxiliary feeding component; The auxiliary feeding component comprises an air duct (18) fixedly arranged on the outer wall of the arc-shaped converging inclined plate, the air duct (18) is inclined, and the lower end thereof is inclined toward the feed port, an impeller (19) is rotatably mounted inside the end of the air duct (18) away from the arc-shaped converging inclined plate, and a gear speed increaser (20) is fixedly mounted on the end of the air duct (18) away from the arc-shaped converging inclined plate, the output end of the gear speed increaser (20) is fixedly connected to the rotating rod of the impeller (19), an optical axis (17) is rotatably mounted on the bottom of the drying box body (1), and the outer surface of the optical axis (17) and the output end of the gear speed increaser (20) are fixedly mounted with bevel gears, the two bevel gears are meshed with each other, and the two ends of the optical axis (17) are also fixedly mounted with fourth synchronous gears, and the fourth synchronous gear is matched with the second synchronous toothed belt or the third synchronous toothed belt for transmission.

2. A novel multi-layer box-type drying machine according to claim 1, characterized in that: The multi-layer conveyor drying mechanism comprises at least two first air-permeable conveyor toothed belts (3) and second air-permeable conveyor toothed belts (6) arranged inside the drying box (1); the number of the first air-permeable conveyor toothed belts (3) and the number of the second air-permeable conveyor toothed belts (6) are the same, and a plurality of the first air-permeable conveyor toothed belts (3) and a plurality of the second air-permeable conveyor toothed belts (6) are staggered from top to bottom; the lengths of the first air-permeable conveyor toothed belts (3) and the second air-permeable conveyor toothed belts (6) are the same; the first air-permeable conveyor toothed belts (3) and the second air-permeable conveyor toothed belts (6) are offset in opposite directions, and the offset is between 1 / 8 and 1 / 5 of the total length of the first air-permeable conveyor toothed belts (3); and both ends of each first air-permeable conveyor toothed belt (3) are equipped with a first transmission. A first rotating shaft (4) which rotates and passes through the drying box (1) is fixedly installed inside the first transmission gear (5), and the ends of the first rotating shaft (4) located on the same side are fixedly sleeved with second synchronous gears, and a second synchronous toothed belt is transmission-assembled between a plurality of second synchronous gears, and the two ends of each second air-permeable conveying toothed belt (6) are transmission-assembled with second transmission gears (8), and the second rotating shaft (7) which rotates and passes through the drying box (1) is fixedly installed inside the second transmission gear (8), and the ends of the second rotating shaft (7) located on the same side are fixedly installed with third synchronous gears, and a third synchronous toothed belt is transmission-assembled between a plurality of third synchronous gears, and a transmission component is also arranged outside the drying box (1).

3. A novel multi-layer box-type drying machine according to claim 2, characterized in that: The transmission component comprises a second motor (16) fixedly mounted on the outer wall of the drying box (1), the output end of the second motor (16) being fixedly connected to the end of one of the first rotating shaft (4) or the second rotating shaft (7), wherein the ends of the two first rotating shafts (4) and the two second rotating shafts (7) adjacent to each other are fixedly sleeved with driving gears (34), and the two driving gears (34) adjacent to each other are meshed with each other.

4. A novel multi-layer box-type drying machine according to claim 2, characterized in that: The inner wall of the drying box (1) is also fixedly mounted with a plurality of relatively distributed guide inclined plates (9).

5. A novel multi-layer box-type drying machine according to claim 1, characterized in that: The guide arc plate (33) is fixedly extended to the interior of the drying box (1), and the arc-shaped converging inclined plate is fixedly connected to the bottom of the drying box (1). A material dropping area is formed between the guide arc plate (33), the arc-shaped converging inclined plate and the drying box (1). The air duct (18) is communicated with the interior of the material dropping area. A conveying shaft (13) is coaxially installed inside the conveying cylinder (11), and the top of the conveying shaft (13) rotates and penetrates the conveying cylinder (11). A first motor (15) is fixedly arranged on the top of the conveying cylinder (11), and the output end of the first motor (15) is fixedly connected to the top of the conveying shaft (13). A spiral blade (14) is also fixedly sleeved on the outer surface of the conveying shaft (13).

6. A novel multi-layer box-type drying machine according to claim 5, characterized in that: The sealing component comprises a stopper (25) movably embedded in the inner side of the bottom of the conveying cylinder (11), and the bottoms of the conveying shaft (13) and the spiral blade (14) are in movably contact with the stopper (25), a bottom cover (12) is fixedly mounted on the bottom of the stopper (25), and the outer diameter of the bottom cover (12) is larger than the outer diameter of the stopper (25), an edge ring is arranged on the outer surface of the bottom of the conveying cylinder (11), and at least two limit shafts ( 27), and the limit shaft (27) slides through the edge ring, a threaded rod (26) is fixedly installed at the center of the stop block (25), and the threaded rod (26) is movably embedded in the bottom of the conveying shaft (13), and an internal threaded sleeve (28) is rotatably provided on the inner wall of the bottom of the conveying shaft (13), the internal threaded sleeve (28) is threadedly matched with the threaded rod (26), and a clamping piece is provided between the internal threaded sleeve (28) and the conveying shaft (13).

7. A novel multi-layer box-type drying machine according to claim 6, characterized in that: The engaging member comprises a plurality of chucks (29) slidably embedded in the internal threaded sleeve (28) and distributed equidistantly around the circumference, and the axis of the chuck (29) is parallel to the axis of the internal threaded sleeve (28), one end of the chuck (29) is fixedly mounted with a dome brake rod (31) slidably penetrating the internal threaded sleeve (28), and a spring (30) is arranged between the other end of the chuck (29) and the internal threaded sleeve (28), and the inner wall of the conveying shaft (13) is also provided with a plurality of arc-shaped grooves (32) engaged with the ends of the dome brake rod (31).

8. A novel multi-layer box-type drying machine according to claim 7, characterized in that: When the conveying shaft (13) rotates with the spiral blade (14) to convey the material downward, the internal threaded sleeve (28) rotates and engages with the conveying shaft (13) to drive the threaded rod (26) to move downward.

9. A novel multi-layer box-type drying machine according to claim 2, characterized in that: The bottom of the hopper (10) is in an inverted trapezoidal shape, and a discharge port is provided at the bottom of the hopper (10). Notches (21) are provided on two oblique sides of the lower part of the hopper (10), and a first synchronous toothed belt (24) is slidably sleeved between each of the notches (21) and the extended edge of the discharge port. The inner wall of the first synchronous toothed belt (24) is slidably fitted with the hopper (10). A first synchronous gear (23) is meshedly installed below each of the first synchronous toothed belts (24), and a transmission shaft (22) that rotates and runs through the drying box (1) is fixedly installed inside the first synchronous gear (23). The two transmission shafts (22) are respectively connected to one of the first rotating shafts (4) and the second rotating shaft (7) through a fifth synchronous gear and a fifth synchronous toothed belt transmission assembly.

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