A drying machine capable of automatic mixing
By designing an automatic mixing system in a grain dryer, using conveying, transporting and mixing components, the problems of low drying efficiency and energy utilization caused by grain accumulation are solved, and efficient drying of grain and energy optimization of food are achieved.
Patent Information
- Application Number
- CN202411912549.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-24
- Publication Date
- 2025-03-04
- Estimated Expiration
- 2044-12-24
AI Technical Summary
When existing grain dryers process large amounts of grain, grain is prone to accumulation, reducing the contact area between hot air flow and grain, affecting drying efficiency and energy utilization.
A dryer that can be automatically mixed is designed. By setting up a screen plate in the oven to separate it into two upper and lower chambers, and installing conveying components, grain transport components and mixing components, the continuous mixing and component drying of grain are achieved.
The efficiency and energy utilization of grain drying are improved, continuous mixing and component drying of grain are achieved, and the problem of reducing the contact area of hot air flow caused by grain accumulation is avoided.
Smart Images
Figure CN119353899B_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of grain drying, and more specifically to a drying machine capable of automatic mixing. Background Art
[0002] Grain dryer is a kind of equipment specially used for drying grain. It significantly improves the storage and transportation efficiency of grain by removing moisture from grain. This equipment plays a vital role in the agricultural field. It can not only improve the storage safety and shelf life of grain, but also effectively reduce grain losses caused by weather changes. Grain dryer usually consists of several key parts: drying chamber, heating system, ventilation system and control system.
[0003] When processing a large amount of grain, although the dryer has a large capacity, the grain is easy to accumulate in the oven. This accumulation phenomenon reduces the contact area between the hot air flow and the grain, thereby affecting the drying efficiency and energy utilization. In order to solve this problem, the usual practice is to install a circulating mixing device in the oven to continuously turn the grain to increase the heat exchange area;
[0004] The circulating mixing device turns the grain by taking the grain from the bottom of the dryer and pouring it at the highest point. However, this method has some shortcomings: first, the grain is poured at the highest point, resulting in insufficient dispersion between grain particles; second, the drying method is relatively simple, mainly relying on the hot air flow in the drying chamber to heat and dry the grain.
[0005] Therefore, the present invention proposes an automatic mixing dryer to achieve continuous mixing and separate grain drying in a drying oven, so as to improve the efficiency of grain drying and energy utilization. Summary of the invention
[0006] In order to overcome the above-mentioned defects of the prior art, the present invention provides an automatic mixing dryer to solve the problem existing in the above-mentioned background technology of how to achieve continuous mixing and separate drying of grains in an oven to improve grain drying efficiency and energy utilization.
[0007] The present invention provides the following technical scheme: an automatic mixing drying machine, comprising an oven and a base installed at the bottom thereof, wherein a sieve plate is installed in the oven, and the sieve plate divides the oven into two upper and lower chambers, namely a slow-release layer and a drying chamber, and the slow-release layer and the drying chamber are respectively provided with a mixing component and a conveying component, a grain collecting component connected to the drying chamber is installed on the left and right sides of the bottom end of the oven, and a grain transporting component that can move up and down along the inner side of a lifting frame is arranged on the periphery of the grain collecting component, the bottom end of the lifting frame is installed on the base, a return material component connected to the slow-release layer is installed on the left and right sides of the top end of the oven, and a driving component and a transmission component for driving the conveying component and the mixing component are respectively installed on the outside of the oven;
[0008] The conveying assembly includes a first screw rod, a grain pusher, a first pulley and a gear, wherein the first screw rod is rotatably arranged in the drying chamber of the oven, and the left and right ends of the first screw rod are movably penetrated through the oven and are sequentially equipped with the first pulley and the gear from the inside to the outside, the grain pusher is threadedly sleeved on the threaded section of the first screw rod, and the bottom end of the grain pusher is in contact with the top wall of the heat conducting plate and is slidably connected thereto;
[0009] The grain collecting assembly comprises a grain collecting box, a material guide pipe, a flow limiting valve plate, a positioning seat and a first spring, wherein the grain collecting box is fixedly installed outside the material outlet and communicated with the drying chamber, the bottom wall of the grain collecting box is equipped with a material guide pipe, the top end of the material guide pipe is movably plugged with a flow limiting valve plate, the flow limiting valve plate is connected to the positioning seat through the first spring transmission, and the positioning seat is fixedly installed on the outer wall of the grain collecting box;
[0010] The return material assembly comprises a return material pipe, a base plate, a recursive block, a swing rod and a second spring, wherein the return material pipe is fixedly mounted on the outer wall of the oven and communicates with the slow-release layer, the top end of the return material pipe is fixedly connected to the base plate, the inner cavity of the return material pipe is slidably connected to the recursive block, the steering knuckle at the bottom end of the swing rod is movably engaged with the recursive block, and the push plate at the top end of the swing rod is connected to the base plate through the second spring transmission;
[0011] The grain transporting assembly comprises a grain transporting box, a sliding rod, a rack, a hatch and an elastic shaft, wherein the grain transporting box is slidably connected to the inner side of the lifting frame, and the top of the grain transporting box is movably inserted with a sliding rod, one end of the sliding rod is slidably connected to the U-shaped sliding groove of the lifting frame, and the other end of the sliding rod is telescopic and penetrates the side wall of the grain transporting box as it moves up and down. The grain transporting box is fixedly connected with a rack on the side close to the grain collecting assembly, the rack is meshed with the gear, and the same side wall of the grain transporting box is provided with a grain inlet and a grain discharge outlet distributed up and down, and a hatch is arranged in the grain discharge outlet by rotating the elastic shaft. When the grain transporting box slides down to the lowest point along the lifting frame, the grain collected in the grain collecting box can be introduced into the grain transporting box through a smooth material guide pipe, so as to realize the quantitative transfer of the grain, and the grain transporting box slides up and down along the lifting frame to the highest point, and the grain loaded in the grain transporting box can be merged into the slow-release layer through the connected grain discharge outlet and return pipe, so as to realize the unloading and recovery of the divided grain in the grain transporting box.
[0012] Furthermore, a through opening is provided on the flow limiting valve plate, and the flow limiting valve plate can move toward one side of the positioning seat and compress the first spring under the push of the sliding rod until the through opening of the flow limiting valve plate is aligned with the material guide pipe. The grain collected in the grain collecting box can be introduced into the grain transport box through the unobstructed material guide pipe to realize the quantitative transfer of grain. After the external force on the flow limiting valve plate is removed, the flow limiting valve plate can elastically reset and seal and block the material guide pipe to stop discharging grain.
[0013] Furthermore, when one end of the slide rod reaches the lowest turning point of the U-shaped slide groove, the other end of the slide rod is at least pulled out to the outside of the grain collecting box to prevent the grain collecting box from interfering with the moving trajectory of the grain transport component.
[0014] Furthermore, the elastic shaft is mainly composed of a rod body and a torsion spring. When an external force acts on the rod body to rotate it around the axis, the torsion spring is compressed or stretched, thereby storing elastic potential energy. When the external force disappears, the torsion spring releases this energy to restore the rod body to its original position.
[0015] Furthermore, the transmission assembly includes a second screw rod, a U-shaped bracket, a second pulley and a slider, wherein the second screw rod is rotatably connected to the U-shaped bracket, one end of the second screw rod is equipped with a second pulley, wherein the second pulley is connected to a first pulley through a synchronous belt transmission, and the slider is slidably arranged on the outside of the second screw rod and is threadedly sleeved with the second screw rod.
[0016] Furthermore, the mixing assembly includes a U-shaped connecting rod, an elastic telescopic rod, a pushing plate and a dredging head, wherein the two ends of the U-shaped connecting rod are respectively connected to a sliding block and the elastic telescopic rod, the telescopic end of the elastic telescopic rod is equipped with a pushing plate, and the bottom end of the pushing plate is fixedly connected to the dredging head.
[0017] Furthermore, the driving assembly includes a reversible motor, a base and a third pulley, wherein the reversible motor is assembled above the base through the base, the output shaft of the reversible motor is fixedly connected to the third pulley through a coupling, and the third pulley is connected to the other first pulley through a synchronous belt.
[0018] Furthermore, the grains passing through the grain separation holes fall onto the upper layer of the heat conducting plate, and the heat conducting plate can conduct the heat of the heater to heat the fallen grains. The bottom wall of the drying chamber is equipped with a heat conducting plate carrying a conveying assembly, the top wall of the oven is a feed inlet, and the bottom end of the oven is provided with discharge ports located on the left and right sides of the heat conducting plate.
[0019] Furthermore, grain separation holes are provided on the surface of the sieve plate, and the grain in the slow-release layer passes through the grain separation holes and enters the drying chamber in the form of continuous portions and exchanges heat with the drying chamber. The grain separation holes are inverted cones, and the grain separation holes fit with the unblocking heads so that they can smoothly enter or leave the grain separation holes.
[0020] Technical effects and advantages of the present invention:
[0021] The present invention is provided with a conveying component, a grain transport component and a mixing component, which is conducive to the positive and negative periodic rotation of the first screw rod, the first pulley and the gear, so that the grain pushing rack slidably arranged above the heat conduction plate moves back and forth in the drying chamber, and the grain falling on the upper layer of the heat conduction plate is pushed into the grain collecting box through the discharge port of the oven for collection. At the same time, the gears connected to the two ends of the first screw rod drive the left and right racks to move in reverse. When the grain transport box slides down the lifting frame to the lowest point, the grain collected in the grain collecting box can be introduced into the grain transport box through a smooth guide pipe, so as to realize the weight transfer of the grain. When the grain transport box slides up the lifting frame to the highest point, the grain loaded in the grain transport box can be The grain transport components move up and down periodically with opposite motion postures to realize grain collection, grain transportation and grain unloading. At the same time, the slider slidingly arranged on the outer periphery of the U-shaped bracket can carry the mixing component to move back and forth in the slow-release layer with the forward and reverse alternating rotation of the second screw rod. On the one hand, the moving push plate can turn over and mix the grain entering the slow-release layer. On the other hand, the moving unblocking head can telescopically poke through the grain separation hole to avoid the blockage of the screen plate and the loss of grain separation ability. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] Figure 1 It is a schematic diagram of a side view of the overall structure of the present invention.
[0023] Figure 2 It is a schematic diagram of the overall structure of the present invention from another side perspective.
[0024] Figure 3 For the present invention Figure 1 Schematic diagram of the structure and its local cross-section.
[0025] Figure 4 For the present invention Figure 3 Schematic diagram of the interior of the oven and the connection structure on one side.
[0026] Figure 5 For the present invention Figure 4 Schematic diagram of the structure at point A in the middle.
[0027] Figure 6 For the present invention Figure 4 Schematic diagram of the structure at point B in the middle.
[0028] Figure 7 For the present invention Figure 3 Schematic diagram of the interior of the oven and the connection structure on the other side.
[0029] Figure 8 For the present invention Figure 7 Schematic diagram of the structure at point C in the middle.
[0030] Fig. 9For the present invention Figure 7 Schematic diagram of the structure at point D in the middle.
[0031] Fig.10 It is a schematic diagram of the connection structure of the oven, conveying assembly, transmission assembly and mixing assembly of the present invention.
[0032] The accompanying drawings are marked as follows: 1. oven; 2. base; 3. sieve plate; 4. conveying assembly; 401. first screw rod; 402. grain pusher; 403. first pulley; 404. gear; 5. grain collecting assembly; 501. grain collecting box; 502. material guide pipe; 503. flow limiting valve plate; 504. positioning seat; 505. first spring; 6. grain transport assembly; 601. grain transport box; 602. slide rod; 603. rack; 604. hatch; 605. elastic shaft; 7. lifting frame; 8. material return assembly; 8 01. Return pipe; 802. Base plate; 803. Recursive block; 804. Rocker; 805. Second spring; 9. Transmission assembly; 901. Second screw rod; 902. U-shaped bracket; 903. Second pulley; 904. Slider; 10. Mixing assembly; 1001. U-shaped connecting rod; 1002. Elastic telescopic rod; 1003. Pushing plate; 1004. Unclogging head; 11. Driving assembly; 1101. Reversible motor; 1102. Machine base; 1103. Third pulley; 12. Heat transfer plate. DETAILED DESCRIPTION
[0033] The technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the present invention. In addition, the forms of the various structures described in the following embodiments are only examples. The automatic mixing dryer involved in the present invention is not limited to the various structures described in the following embodiments. All other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the present invention.
[0034] Reference Figure 1-10The present invention provides an automatic mixing drying machine, comprising an oven 1 and a base 2 installed at the bottom thereof, a sieve plate 3 is installed in the oven 1, and the sieve plate 3 divides the oven 1 into two upper and lower chambers, namely a slow-release layer and a drying chamber, and a mixing component 10 and a conveying component 4 are respectively arranged in the slow-release layer and the drying chamber, a grain collecting component 5 communicating with the drying chamber is installed on the left and right sides of the bottom end of the oven 1, and a grain conveying component 6 that can move up and down along the inner side of a lifting frame 7 is arranged on the periphery of the grain collecting component 5, the bottom end of the lifting frame 7 is installed on the base 2, and a material conveying component 6 that can move up and down along the inner side of a lifting frame 7 is installed on the left and right sides of the top end of the oven 1. The return material component 8 is provided, and the outside of the oven 1 is also respectively installed with a driving component 11 and a transmission component 9 for driving the conveying component 4 and the mixing component 10. With the forward and reverse rotation of the conveying component 4, the left and right grain transport components 6 move up and down periodically in opposite motion postures to realize the collection, transportation and unloading of separate grains. At the same time, the conveying component 4 drives the mixing component 10 to move back and forth in the slow-su layer through the transmission component 9, and the grain entering the slow-su layer is turned over and mixed, so as to realize the continuous mixing and separate drying of the grain in the oven 1, so as to improve the grain drying efficiency and energy utilization rate.
[0035] In this embodiment, it should be specifically explained that the surface of the sieve plate 3 is provided with grain separation holes, and the grain in the slow-release layer passes through the grain separation holes and enters the drying chamber in the form of continuous portions and exchanges heat with the drying chamber, which is the main grain drying step. The grain separation holes are inverted cones, and the grain separation holes fit with the dredging head 1004, so that it can smoothly enter or leave the grain separation holes, which is convenient for timely detachment after the grain separation holes are dredged, thereby ensuring the normal grain separation capacity of the sieve plate 3;
[0036] The grains passing through the grain separation holes fall onto the upper layer of the heat conducting plate 12, which can conduct the heat from the heater to heat the fallen grains. The bottom wall of the drying chamber is equipped with a heat conducting plate 12 carrying the conveying assembly 4. The top wall of the oven 1 is a feed inlet, which can be connected to a grain unloading device, and the bottom end of the oven 1 is provided with discharge ports located on the left and right sides of the heat conducting plate 12.
[0037] Reference Figure 3-9The conveying assembly 4 includes a first screw rod 401, a grain pusher 402, a first pulley 403 and a gear 404, wherein the first screw rod 401 is rotatably arranged in the drying chamber of the oven 1, and the left and right ends of the first screw rod 401 are movably penetrated through the oven 1 and are sequentially equipped with the first pulley 403 and the gear 404 from the inside to the outside, the grain pusher 402 is threadedly sleeved on the threaded section of the first screw rod 401, and the bottom end of the grain pusher 402 is in contact with the top wall of the heat conducting plate 12 and is slidably connected thereto. When the first screw rod 401 rotates alternately forward and backward, the grain pusher 402 slidably arranged above the heat conducting plate 12 can move back and forth in the drying chamber, and push the grains falling on the upper layer of the heat conducting plate 12 into the grain collecting box 501 through the discharge port of the drying oven 1 for collection. At the same time, the gears 404 connected to the two ends of the first screw rod 401 can drive the left and right racks 603 to move in opposite directions, so that the left and right grain transport components 6 move up and down periodically in opposite motion postures, thereby realizing the continuous transfer of the divided grains;
[0038] The grain collecting assembly 5 comprises a grain collecting box 501, a material guide pipe 502, a flow limiting valve plate 503, a positioning seat 504 and a first spring 505, wherein the grain collecting box 501 is fixedly installed outside the material outlet and communicated with the drying chamber, the bottom wall of the grain collecting box 501 is equipped with a material guide pipe 502, the top end of the material guide pipe 502 is movably connected with the flow limiting valve plate 503, the flow limiting valve plate 503 is connected to the positioning seat 504 through the first spring 505, and the positioning seat 504 is fixedly installed on the collecting box 501. The outer wall of the grain box 501, when the left grain transport box 601 slides down to the lowest point along the lifting frame 7, the grain inlet of the grain transport box 601 is aligned with the guide pipe 502, and at this time, the slide bar 602 has passed the turning point at the bottom end of the U-shaped slide groove in the lifting frame 7 and pressed on the flow limiting valve plate 503 until the opening of the flow limiting valve plate 503 is aligned with the guide pipe 502, so that the grain collected in the grain collection box 501 can be introduced into the grain transport box 601 through the unobstructed guide pipe 502, so as to realize the quantitative transfer of grain;
[0039] The return material assembly 8 includes a return material pipe 801, a base plate 802, a recursive block 803, a swing rod 804 and a second spring 805, wherein the return material pipe 801 is fixedly mounted on the outer wall of the oven 1 and communicates with the slow-release layer, the top of the return material pipe 801 is fixedly connected to the base plate 802, the inner cavity of the return material pipe 801 is slidably connected to the recursive block 803, the steering knuckle at the bottom end of the swing rod 804 is movably engaged with the recursive block 803, and the push plate at the top end of the swing rod 804 is connected to the base plate 802 through the second spring 805. When the grain transport box 601 slides to the highest point along the lifting frame 7, its grain discharge port is aligned with the return material pipe 801 on the same side. At this time, the slide bar 602 has passed the turning point at the top of the U-shaped slide groove in the lifting frame 7 and pressed on the swing rod 804 until the bottom end of the swing rod 804 pushes the recursive block 803 to slide and press to one side of the hatch 604, and then the hatch 604 turns over and opens the hatch with the elastic shaft 605 as the axis toward the inner cavity of the grain transport box 601, so that the grain loaded in the grain transport box 601 can be connected through the grain discharge port and the return pipe 801 and then flow into the slow-release layer in the oven 1, thereby realizing the unloading and recovery of the divided grain in the grain transport box 601. On the contrary, when the external force on the push plate at the top of the swing rod 804 is removed, the swing rod 804 is elastically reset, and the recursive block 803 slides inward;
[0040] The grain transport component 6 includes a grain transport box 601, a slide bar 602, a rack 603, a hatch 604 and an elastic shaft 605, wherein the grain transport box 601 is slidably connected to the inner side of the lifting frame 7, and the top of the grain transport box 601 is movably plugged with a slide bar 602, one end of the slide bar 602 is slidably connected to the U-shaped slide groove of the lifting frame 7, and the other end of the slide bar 602 is telescopically extended and penetrates the side wall of the grain transport box 601 as it moves up and down, and the grain transport box 601 is fixedly connected to a rack 603 on the side close to the grain collecting component 5, and the rack 603 is meshed with the gear 404, and the grain transport box 601 The same side wall is provided with a grain inlet and a grain discharge outlet distributed up and down, and a hatch 604 is arranged in the grain discharge outlet through an elastic shaft 605 to rotate. When the grain transport box 601 slides down along the lifting frame 7 to the lowest point, the grain collected in the grain collection box 501 can be introduced into the grain transport box 601 through a smooth guide pipe 502, so as to realize the quantitative transfer of grain. When the grain transport box 601 slides up along the lifting frame 7 to the highest point, the grain loaded in the grain transport box 601 can be collected into the slow-release layer in the oven 1 through the connected grain discharge outlet and return pipe 801, so as to realize the unloading and recovery of the divided grain in the grain transport box 601.
[0041] In this embodiment, it should be specifically explained that a through hole is opened on the flow limiting valve plate 503, and the flow limiting valve plate 503 can move toward the side of the positioning seat 504 under the push of the sliding rod 602 and compress the first spring 505 until the through hole of the flow limiting valve plate 503 is aligned with the material guide pipe 502, and the grain collected in the grain collection box 501 can be introduced into the grain transport box 601 through the unobstructed material guide pipe 502 to realize the quantitative transportation of grain, and after the external force on the flow limiting valve plate 503 is removed, the flow limiting valve plate 503 can be elastically reset and seal and block the material guide pipe 502 to stop discharging grain;
[0042] When one end of the slide bar 602 reaches the lowest turning point of the U-shaped slide groove, the other end of the slide bar 602 is at least pulled out to the outside of the grain collecting box 501 to prevent the grain collecting box 501 from interfering with the moving track of the grain transport component 6;
[0043] The elastic shaft 605 is mainly composed of a rod body and a torsion spring. When an external force acts on the rod body to make it rotate around the axis, the torsion spring is compressed or stretched, thereby storing elastic potential energy. When the external force disappears, the torsion spring releases this energy to restore the rod body to its original position.
[0044] Reference Figure 3 and Fig.10 The transmission assembly 9 includes a second screw rod 901, a U-shaped bracket 902, a second pulley 903 and a slider 904, wherein the second screw rod 901 is rotatably connected to the U-shaped bracket 902, one end of the second screw rod 901 is equipped with a second pulley 903, wherein the second pulley 903 is connected to a first pulley 403 through a synchronous belt transmission, and the slider 904 is slidably arranged on the outside of the second screw rod 901 and is threadedly sleeved with the second screw rod 901;
[0045] The mixing assembly 10 includes a U-shaped connecting rod 1001, an elastic telescopic rod 1002, a pushing plate 1003 and a dredging head 1004, wherein the two ends of the U-shaped connecting rod 1001 are respectively connected to the slider 904 and the elastic telescopic rod 1002, the telescopic end of the elastic telescopic rod 1002 is equipped with a pushing plate 1003, the bottom end of the pushing plate 1003 is fixedly connected to the dredging head 1004, and the slider 904 slidably arranged on the periphery of the U-shaped bracket 902 can carry the mixing assembly 10 to move back and forth in the slow-release layer with the positive and negative alternating rotation of the second screw 901. On the one hand, the moving pushing plate 1003 can turn over and mix the grain entering the slow-release layer, and on the other hand, the moving dredging head 1004 can telescopically poke through the grain separation hole to avoid the sieve plate 3 from being blocked and losing the grain separation ability;
[0046] The driving assembly 11 includes a reversible motor 1101, a base 1102 and a third pulley 1103, wherein the reversible motor 1101 is assembled above the base 2 through the base 1102, and the output shaft of the reversible motor 1101 is fixedly connected to the third pulley 1103 through a coupling, and the third pulley 1103 is transmission-connected to another first pulley 403 through a synchronous belt.
[0047] Working principle of the present invention:
[0048] The grain is injected into the slow-release layer above the sieve plate 3 from the feed port of the oven 1. After the grain is loaded, the grain in the slow-release layer passes through the grain separation holes and enters the drying chamber in the form of continuous portions and exchanges heat with the drying chamber, which is the main grain drying step, until it falls on the upper layer of the heat conducting plate 12. The heat conducting plate 12 can conduct the heat of the heater to provide auxiliary heat to the falling grain, thus realizing multi-stage grain drying.
[0049] Next, the reversible motor 1101 is started, and the output shaft of the reversible motor 1101 drives the third pulley 1103 connected thereto to rotate alternately forward and reverse periodically through the coupling, and the rotating third pulley 1103 drives the first pulley 403 through the synchronous belt, so that the first screw rod 401, the first pulley 403 and the gear 404 rotate coaxially, so that the grain pusher 402 slidably arranged above the heat conduction plate 12 can move back and forth in the drying chamber with the alternate forward and reverse rotation of the first screw rod 401, so as to push the grain to fall. The grain on the upper layer of the heat conducting plate 12 is pushed into the grain collecting box 501 through the discharge port of the oven 1 for collection. At the same time, the gears 404 connected to both ends of the first screw rod 401 drive the left and right racks 603 to move in opposite directions, that is, when the left grain transport component 6 descends, the right grain transport component 6 rises. When the left grain transport box 601 slides down along the lifting frame 7 to the lowest point, the grain inlet of the grain transport box 601 is aligned with the guide pipe 502. At this time, the slide bar 602 has passed the inflection at the bottom end of the U-shaped slide groove in the lifting frame 7. The right side grain transport box 601 has slid up to the highest point along the lifting frame 7, and its grain discharge port is aligned with the return pipe 801 on the same side. At this time, the slide bar 602 has passed the inflection point at the top of the U-shaped slide groove in the lifting frame 7 and pressed on the swing rod 804 until the bottom of the swing rod 804 is The push block 803 is pushed to slide and press toward one side of the hatch 604, and then the hatch 604 is turned over and opened with the elastic shaft 605 as the axis toward the inner cavity of the grain transport box 601, so that the grain loaded in the grain transport box 601 can be collected into the slow-release layer in the oven 1 through the connected grain discharge port and the return pipe 801, thereby realizing the unloading and recovery of the grain in the grain transport box 601. With the forward and reverse rotation of the conveying component 4, the left and right grain transport components 6 move up and down periodically in opposite motion postures, thereby realizing the collection, transportation and unloading of the grain;
[0050] At the same time, the first pulley 403 drives the second pulley 903 through the synchronous belt, so that the second screw rod 901 and the second pulley 903 rotate coaxially, so that the slider 904 slidably arranged on the periphery of the U-shaped bracket 902 can carry the mixing component 10 to move back and forth in the slow-motion layer with the positive and negative alternating rotation of the second screw rod 901. On the one hand, the moving pushing plate 1003 can turn over and mix the grain entering the slow-motion layer, and on the other hand, the moving U-shaped connecting rod 1001 carries the unclogging head 1004 and moves along the top wall of the screen plate 3. Under the elastic force of the elastic telescopic rod 1002, the unclogging head 1004 can telescopically poke through the grain separation hole to avoid blockage of the screen plate 3 and loss of grain separation ability.
[0051] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent substitutions or modifications within the technical scope disclosed by the present invention; according to the technical plan and its improved conception of the present invention, all of which should be included under the protection of the present invention.
Claims
1. An automatic mixing drying machine, comprising a drying oven (1) and a base (2) mounted at the bottom thereof, characterized in that: The oven (1) is equipped with a sieve plate (3), and the sieve plate (3) divides the oven (1) into two upper and lower chambers, namely a slow-release layer and a drying chamber, and the slow-release layer and the drying chamber are respectively provided with a mixing component (10) and a conveying component (4), and the left and right sides of the bottom end of the oven (1) are provided with a grain collecting component (5) connected to the drying chamber, and the periphery of the grain collecting component (5) is provided with a grain transporting component (6) that can move up and down along the inner side of a lifting frame (7), and the bottom end of the lifting frame (7) is installed on the base (2), and the left and right sides of the top end of the oven (1) are provided with a return component (8) connected to the slow-release layer, and the outside of the oven (1) is also provided with a driving component (11) and a transmission component (9) for driving the conveying component (4) and the mixing component (10), respectively; The material return assembly (8) comprises a material return pipe (801), a base plate (802), a recursive block (803), a swing rod (804) and a second spring (805), wherein the material return pipe (801) is fixedly mounted on the outer wall of the oven (1) and communicates with the slow-release layer; The grain transport component (6) comprises a grain transport box (601), a slide bar (602), a rack (603), a hatch (604) and an elastic shaft (605), wherein the grain transport box (601) is slidably connected to the inner side of the lifting frame (7), and the top of the grain transport box (601) is movably plugged with a slide bar (602), one end of the slide bar (602) is slidably connected to the U-shaped slide groove of the lifting frame (7), and the other end of the slide bar (602) is extended and retracted to penetrate the side wall of the grain transport box (601) as it moves up and down, and the grain transport box (601) is fixedly connected to a rack (603) on one side close to the grain collecting component (5), and the rack (603) and the gear (404) are connected to each other. ) are meshed with each other, and a grain inlet and a grain discharge outlet are provided on the same side wall of the grain transport box (601) and are distributed up and down. A hatch (604) is provided in the grain discharge outlet to rotate through an elastic shaft (605). When the grain transport box (601) slides down along the lifting frame (7) to the lowest point, the grain collected in the grain collection box (501) can be introduced into the grain transport box (601) through a smooth guide pipe (502), thereby realizing the quantitative transfer of grain. When the grain transport box (601) slides up along the lifting frame (7) to the highest point, the grain loaded in the grain transport box (601) can be collected into the slow-release layer through the connected grain discharge outlet and return pipe (801), thereby realizing the unloading and recovery of the divided grain in the grain transport box (601).
2. The automatic mixing dryer according to claim 1, characterized in that: The conveying assembly (4) includes a first screw rod (401), a grain pushing rack (402), a first pulley (403) and a gear (404), wherein the first screw rod (401) is rotatably arranged in the drying chamber of the oven (1), and the left and right ends of the first screw rod (401) are movably passed through the oven (1) and are sequentially equipped with the first pulley (403) and the gear (404) from the inside to the outside, the grain pushing rack (402) is threadedly sleeved on the threaded section of the first screw rod (401), and the bottom end of the grain pushing rack (402) is in contact with the top wall of the heat conducting plate (12) and is slidably connected thereto.
3. The automatic mixing dryer according to claim 1, characterized in that: The grain collecting component (5) comprises a grain collecting box (501), a material guiding pipe (502), a flow limiting valve plate (503), a positioning seat (504) and a first spring (505), wherein the grain collecting box (501) is fixedly installed outside the material outlet and communicates with the drying chamber, the bottom wall of the grain collecting box (501) is equipped with a material guiding pipe (502), the top end of the material guiding pipe (502) is movably connected with the flow limiting valve plate (503), the flow limiting valve plate (503) is transmission-connected to the positioning seat (504) via the first spring (505), and the positioning seat (504) is fixedly installed on the outer wall of the grain collecting box (501).
4. The automatic mixing dryer according to claim 3, characterized in that: The flow limiting valve plate (503) is provided with a through opening. The flow limiting valve plate (503) can move toward the side of the positioning seat (504) under the push of the sliding rod (602) and compress the first spring (505) until the through opening of the flow limiting valve plate (503) is aligned with the material guide pipe (502). The grain collected in the grain collecting box (501) can be introduced into the grain transport box (601) through the unobstructed material guide pipe (502), thereby realizing the quantitative transfer of the grain. After the external force on the flow limiting valve plate (503) is removed, the flow limiting valve plate (503) can be elastically reset and seal and block the material guide pipe (502) to stop discharging the grain.
5. The automatic mixing dryer according to claim 4, characterized in that: When one end of the slide rod (602) reaches the lowest turning point of the U-shaped slide groove, the other end of the slide rod (602) is at least pulled out to the outside of the grain collecting box (501) to prevent the grain collecting box (501) from interfering with the movement trajectory of the grain transport component (6). The elastic shaft (605) is mainly composed of a rod body and a torsion spring. When an external force acts on the rod body to rotate it around the axis, the torsion spring is compressed or stretched, thereby storing elastic potential energy. When the external force disappears, the torsion spring releases this energy to restore the rod body to its original position.
6. The automatic mixing dryer according to claim 1, characterized in that: The transmission assembly (9) comprises a second screw rod (901), a U-shaped bracket (902), a second pulley (903) and a slider (904), wherein the second screw rod (901) is rotatably connected to the U-shaped bracket (902), one end of the second screw rod (901) is equipped with a second pulley (903), wherein the second pulley (903) is connected to a first pulley (403) via a synchronous belt transmission, and the slider (904) is slidably arranged outside the second screw rod (901) and is threadedly sleeved with the second screw rod (901).
7. The automatic mixing dryer according to claim 6, characterized in that: The mixing assembly (10) comprises a U-shaped connecting rod (1001), an elastic telescopic rod (1002), a pushing plate (1003) and a dredging head (1004), wherein the two ends of the U-shaped connecting rod (1001) are respectively connected to a sliding block (904) and the elastic telescopic rod (1002), the telescopic end of the elastic telescopic rod (1002) is equipped with a pushing plate (1003), and the bottom end of the pushing plate (1003) is fixedly connected to the dredging head (1004).
8. The automatic mixing dryer according to claim 2, characterized in that: The driving assembly (11) comprises a reversible motor (1101), a machine base (1102) and a third pulley (1103), wherein the reversible motor (1101) is assembled on the top of the base (2) via the machine base (1102), the output shaft of the reversible motor (1101) is fixedly connected to the third pulley (1103) via a coupling, and the third pulley (1103) is transmission-connected to another first pulley (403) via a synchronous belt.
9. The automatic mixing dryer according to claim 1, characterized in that: The top end of the return tube (801) is fixedly connected to the base plate (802), the inner cavity of the return tube (801) is slidably connected to the recursive block (803), the steering knuckle at the bottom end of the swing rod (804) is movably engaged with the recursive block (803), and the push plate at the top end of the swing rod (804) is transmission-connected to the base plate (802) via a second spring (805).
10. The automatic mixing dryer according to claim 7, characterized in that: The grains passing through the grain separation holes fall onto the upper layer of the heat conducting plate (12), and the heat conducting plate (12) can conduct the heat of the heater to heat the fallen grains. The bottom wall of the drying chamber is equipped with a heat conducting plate (12) carrying a conveying assembly (4). The top wall of the oven (1) is a material inlet, and the bottom end of the oven (1) is provided with material outlets located on the left and right sides of the heat conducting plate (12). The surface of the sieve plate (3) is provided with grain separation holes, and the grains in the slow cooling layer pass through the grain separation holes and enter the drying chamber in the form of continuous portions and exchange heat with the grain separation holes. The grain separation holes are inverted cone shape, and the grain separation holes fit with the dredging head (1004) so that the grain separation holes can smoothly enter or leave the grain separation holes.
Citation Information
Patent Citations
Intelligent separation type grain dryer
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