Microwave vacuum drying device capable of automatically and quantitatively feeding

Abstract

The utility model belongs to the field of drying, and discloses a microwave vacuum drying device capable of automatically and quantitatively feeding, which comprises a microwave vacuum drying machine body, and a feeding mechanism is arranged at the top of the microwave vacuum drying machine body; the feeding mechanism comprises an index plate, a plurality of storage holes are formed in the index plate, a partition plate is rotationally connected to the upper end of the index plate, an arc-shaped groove is formed in the partition plate, a first flow guide groove is fixed to the end of the arc-shaped groove, and a second flow guide groove is fixed to the upper end of the first flow guide groove; a plurality of connecting rods are fixed to the top end of the transmission shaft, and a push plate is fixed to the other ends of the connecting rods. The lower end of the index plate is rotationally connected with a bottom plate, the bottom plate and the peripheral side of the partition plate are fixed, a first through hole is formed in the bottom plate, a guide pipe is fixed to the lower end of the first through hole, a valve is fixed to the guide pipe, and the lower end of the guide pipe communicates with an inner cavity of the microwave vacuum dryer body. Therefore, during feeding, the number of turns of rotation of the index plate during single feeding is specified, so that the feeding amount of each time is roughly the same.

Description

Technical Field

[0001] This utility model belongs to the field of drying, specifically relating to a microwave vacuum drying device for automatic quantitative feeding. Background Technology

[0002] In agricultural production, drying materials (such as lychees and longans) is a crucial step in ensuring product quality, extending shelf life, and achieving efficient resource utilization. Traditional drying technologies (such as hot air drying and freeze drying) suffer from drawbacks such as high energy consumption, long cycles, and easy damage to heat-sensitive components. Microwave vacuum drying technology, by combining the advantages of microwave heating and a vacuum environment, achieves rapid dehydration at low temperatures, significantly improving drying efficiency and finished product quality, and showing broad application prospects, especially in the food industry.

[0003] When using microwave vacuum drying technology to dry materials, if the drying time is the same, a small amount of material fed at one time can affect the overall work efficiency, while a large amount of material fed at one time can affect the drying quality. Therefore, quantitative feeding is particularly important. Utility Model Content

[0004] In view of the shortcomings of the prior art, the purpose of this utility model is to provide a microwave vacuum drying device for automatic quantitative feeding, which solves the problems in the background art.

[0005] The objective of this utility model can be achieved through the following technical solutions:

[0006] Material is filled into the first guide channel. Simultaneously, the drive shaft rotates, causing the indexing plate and drive shaft to rotate together. The drive shaft drives several connecting rods and push plates to rotate around the drive shaft. The push plates push the material in the first guide channel into the second guide channel. Under the action of gravity, the material rolls along the second guide channel into the arc-shaped groove and enters the storage hole on the indexing plate. Each storage hole can only be filled with one fruit. As the indexing plate rotates continuously, the remaining material will enter other storage holes. When the storage hole is aligned with the first through hole, the material in the storage hole enters the guide tube and then enters the chamber of the microwave vacuum dryer body. After the material in the chamber of the microwave vacuum dryer body is filled, the rotation of the indexing plate is stopped, the valve is closed, and the microwave vacuum dryer body is started to dry the material.

[0007] The principles and technical effects of the above technical solution are as follows:

[0008] Material is filled into the first guide channel. Simultaneously, the drive shaft rotates, causing the indexing plate and drive shaft to rotate together. The drive shaft drives several connecting rods and push plates to rotate around the drive shaft. The push plates push the material in the first guide channel into the second guide channel. Under the action of gravity, the material rolls along the second guide channel into the arc-shaped groove and enters the storage hole on the indexing plate. Each storage hole can only hold one fruit. As the indexing plate continues to rotate, the remaining material will enter other storage holes. When the storage hole aligns with the first through hole, the material in the storage hole enters the guide tube and then into the chamber of the microwave vacuum dryer body. After the material in the chamber of the microwave vacuum dryer body is filled, the rotation of the indexing plate is stopped, the valve is closed, and the microwave vacuum dryer body is started to dry the material. Therefore, specifying the number of rotations of the indexing plate during each feeding ensures that the amount of material fed each time is approximately the same.

[0009] In a preferred embodiment, the present invention may be further configured to include a cylindrical wall, wherein the bottom plate is fixedly connected to the bottom of the cylindrical wall, and the partition is fixedly connected to the inside of the cylindrical wall.

[0010] In a preferred embodiment, the present invention can be further configured such that: a motor is fixedly connected to the lower end of the base plate, and the output end of the motor is fixedly connected to the connecting shaft.

[0011] In a preferred embodiment, the present invention can be further configured such that the second guide channel is a horizontally placed arc-shaped channel.

[0012] In a preferred embodiment, the present invention can be further configured such that a connecting block is fixedly connected to the side wall of the second guide channel, and the connecting block is fixedly connected to the cylinder wall.

[0013] In a preferred embodiment, the present invention can be further configured such that the second guide channel is an inclined arc-shaped channel.

[0014] In a preferred embodiment, the present invention can be further configured such that: a cover plate is fixedly connected to the top of the cylinder wall, a second through hole is provided on the cover plate, a hopper is fixedly connected to the upper end of the second through hole, and the second through hole is located directly above the second guide channel.

[0015] In a preferred embodiment, the present invention can be further configured such that the arc-shaped groove is misaligned with the first through hole.

[0016] In a preferred embodiment, the present invention can be further configured such that: a plurality of support rods are fixedly connected to the lower end of the base plate, and the support rods are fixedly connected to the top of the microwave vacuum dryer body.

[0017] The explanations of the nouns, conjunctions, or adjectives used in the above technical solutions are as follows:

[0018] A fixed connection refers to a connection in which parts or components are fixed in place, with no relative movement between them. These connections are divided into two types: detachable and non-detachable.

[0019] (1) Detachable connections use screws, splines, wedges, etc. to fix parts together. This type of connection can be disassembled during maintenance without damaging the parts. However, the specifications of the connecting parts used must be correct (such as the length of bolts, keys, wedges) and properly tightened.

[0020] (2) Non-removable connections mainly refer to welding, riveting, and tenon joints. Since disassembly is required by forging, sawing, or oxy-acetylene cutting during repair or replacement, the parts generally cannot be reused. At the same time, attention should be paid to the process quality, technical inspection, and remedial measures (such as correction, polishing, etc.) when making connections.

[0021] A threaded connection is a detachable connection in which threaded parts (or the threaded portion of the connected parts) are joined together to form a single unit.

[0022] A sliding connection refers to two objects that are in contact but not fixed, and can slide relative to each other.

[0023] A rotating connection is a connection between parts that allows the parts to rotate relative to each other.

[0024] The beneficial effects of this utility model are:

[0025] Material is filled into the first guide channel. Simultaneously, the drive shaft rotates, causing the indexing plate and drive shaft to rotate together. The drive shaft drives several connecting rods and push plates to rotate around the drive shaft. The push plates push the material in the first guide channel into the second guide channel. Under the action of gravity, the material rolls along the second guide channel into the arc-shaped groove and enters the storage hole on the indexing plate. Each storage hole can only hold one fruit. As the indexing plate continues to rotate, the remaining material will enter other storage holes. When the storage hole aligns with the first through hole, the material in the storage hole enters the guide tube and then into the chamber of the microwave vacuum dryer body. After the material in the chamber of the microwave vacuum dryer body is filled, the rotation of the indexing plate is stopped, the valve is closed, and the microwave vacuum dryer body is started to dry the material. Therefore, specifying the number of rotations of the indexing plate during each feeding ensures that the amount of material fed each time is approximately the same. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1This is a schematic diagram of the overall structure of an embodiment of the present utility model;

[0028] Figure 2 This is a schematic diagram of the feeding mechanism structure according to an embodiment of the present utility model;

[0029] Figure 3 This is a schematic diagram of a portion of the indexing plate structure according to an embodiment of the present utility model;

[0030] Figure 4 This is a partial structural diagram of the base plate in an embodiment of the present utility model. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0032] In the description of this utility model, it should be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inner", "around" and other terms indicating orientation or positional relationship are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0033] Based on the concept of this application, combined with Figures 1 to 4This describes an embodiment of a microwave vacuum drying device that automatically and quantitatively feeds materials. Specifically, the microwave vacuum drying device is constructed as a split structure, comprising a microwave vacuum dryer body 1, a feeding mechanism 2, and other components that work together to fill the first guide channel 8 with material. Simultaneously, by driving the drive shaft 10 to rotate, the indexing plate 3 and the drive shaft 10 rotate together. The drive shaft 10 drives several connecting rods 11 and push plates 12 to rotate around the drive shaft 10. The push plates 12 push the material in the first guide channel 8 into the second guide channel 9. Under the action of gravity, the material rolls along the second guide channel 9 into the arc-shaped groove. The material enters the storage holes 4 on the indexing plate 3, with each storage hole 4 holding only one fruit. As the indexing plate 3 rotates continuously, the remaining material enters other storage holes 4. When a storage hole 4 aligns with the first through hole 14, the material in the storage hole 4 enters the guide tube 15 and then into the chamber of the microwave vacuum dryer body 1. After the chamber of the microwave vacuum dryer body 1 is filled, the rotation of the indexing plate 3 is stopped, the valve 16 is closed, and the microwave vacuum dryer body 1 is started to dry the material. Therefore, specifying the number of rotations of the indexing plate 3 during each feeding ensures that the amount of material fed each time is approximately the same.

[0034] like Figures 1 to 4 As shown, the microwave vacuum drying device for automatic quantitative feeding includes:

[0035] The microwave vacuum dryer body 1 has a feeding mechanism 2 on its top.

[0036] The feeding mechanism 2 includes an indexing plate 3, which has a plurality of storage holes 4 along its circumference. A connecting shaft 5 is fixedly connected to the middle of the indexing plate 3. A partition 6 is provided at the upper end of the indexing plate 3 and is rotatably connected to the connecting shaft 5. An arc-shaped groove 7 is provided on the partition 6. A first guide groove 8 is fixedly connected to the end of the arc-shaped groove 7. A second guide groove 9 is fixedly connected to the upper end of the first guide groove 8.

[0037] A drive shaft 10 is fixedly connected to the upper end of the connecting shaft 5. Several connecting rods 11 are fixedly connected to the top periphery of the drive shaft 10. A push plate 12 is fixedly connected to the other end of the connecting rods 11.

[0038] The lower end of the indexing plate 3 is provided with a base plate 13 that is rotatably connected to the connecting shaft 5. The base plate 13 is fixedly connected to the periphery of the partition plate 6. A first through hole 14 is provided on the base plate 13. A conduit 15 is fixedly connected to the lower end of the first through hole 14. A valve 16 is fixedly connected to the conduit 15. The lower end of the conduit 15 communicates with the internal cavity of the microwave vacuum dryer body 1.

[0039] In use, material is filled into the first guide channel 8. At the same time, the drive shaft 10 is rotated, causing the indexing plate 3 and the drive shaft 10 to rotate together. The drive shaft 10 drives several connecting rods 11 and push plates 12 to rotate around the drive shaft 10. The push plates 12 push the material in the first guide channel 8 into the second guide channel 9. Under the action of gravity, the material rolls along the second guide channel 9 into the arc-shaped groove 7 and enters the storage hole 4 on the indexing plate 3. Each storage hole 4 can only be filled with one fruit. As the indexing plate 3 rotates continuously, the remaining material will enter other storage holes 4. When the storage hole 4 is aligned with the first through hole 14, the material in the storage hole 4 enters the guide tube 15 and then enters the chamber of the microwave vacuum dryer body 1. After the material in the chamber of the microwave vacuum dryer body 1 is filled, the rotation of the indexing plate 3 is stopped and the valve 16 is closed. The microwave vacuum dryer body 1 is then started to dry the material. Therefore, specifying the number of rotations of the indexing plate 3 during each feeding operation ensures that the amount of material fed each time is approximately the same.

[0040] The microwave vacuum dryer described in this application is prior art. Its working principle combines microwave heating and vacuum drying technologies. It uses electromagnetic waves to directly act on the internal moisture of the material and utilizes a low-pressure environment to lower the boiling point, achieving low-temperature, high-efficiency drying. The specific mechanism is as follows:

[0041] Core working mechanism

[0042] 1. Microwave heating mechanism

[0043] Microwave electromagnetic fields cause polar molecules (such as water molecules) in materials to vibrate at high frequencies (hundreds of millions of times per second), generating heat through friction. The energy penetrates directly into the material without the need for external heat conduction.

[0044] Unlike traditional drying methods, microwave heating heats the food evenly from the inside out, avoiding the phenomenon of "burnt on the outside and raw on the inside".

[0045] 2. Effects of a vacuum environment

[0046] By reducing the system pressure through vacuuming, the boiling point of water decreases significantly (e.g., the boiling point is 68°C at -0.073 MPa), causing the water to evaporate at low temperatures (typically 30-60°C).

[0047] A vacuum environment accelerates the diffusion of moisture and reduces the damage to heat-sensitive substances (such as vitamins and medicinal herbs).

[0048] In one embodiment of this utility model, in order to fix the bottom plate 13 and the partition plate 6, a cylinder wall 17 is also included. The bottom plate 13 is fixedly connected to the bottom of the cylinder wall 17, and the partition plate 6 is fixedly connected to the inside of the cylinder wall 17.

[0049] In one embodiment of this utility model, in order to drive the connecting shaft 5 to rotate, a motor 18 is fixedly connected to the lower end of the base plate 13, and the output end of the motor 18 is fixedly connected to the connecting shaft 5.

[0050] In one embodiment of this utility model, the second guide channel 9 is a horizontally placed arc-shaped channel. The purpose of this design is to allow the material to fall into the second guide channel 9 first, thereby controlling the material feeding speed and preventing excessive material accumulation on the upper part of the partition 6 due to excessive speed.

[0051] In one embodiment of this utility model, in order to make the second guide channel 9 stable, a connecting block 19 is fixedly connected to the side wall of the second guide channel 9, and the connecting block 19 is fixedly connected to the cylinder wall 17.

[0052] In one embodiment of this utility model, the second guide channel 9 is an inclined arc-shaped channel. The purpose of this design is to allow the material to roll along the second guide channel 9 into the arc-shaped groove 7 under the action of gravity, and then into the storage hole 4 on the indexing plate 3.

[0053] In one embodiment of this utility model, a cover plate 20 is fixedly connected to the top of the cylinder wall 17. A second through hole is provided on the cover plate 20, and a hopper 22 is fixedly connected to the upper end of the second through hole. The second through hole is located directly above the second guide groove 9. In use, material can be filled into the hopper 22 in advance, so that the material falls into the second guide groove 9 under the action of gravity. The push plate 12 pushes the material in the first guide groove 8 into the second guide groove 9. Under the action of gravity, the material rolls along the second guide groove 9 into the arc-shaped groove 7 and enters the storage hole 4 on the indexing plate 3.

[0054] In one embodiment of this utility model, the arc-shaped groove 7 is offset from the first through hole 14. The purpose of this arrangement is to prevent material from immediately flowing out of the first through hole 14 when it enters the storage hole 4 on the indexing plate 3 from the arc-shaped groove 7.

[0055] In one embodiment of this utility model, in order to ensure that the feeding mechanism 2 can be stably fixedly installed on the microwave vacuum dryer body 1, a number of support rods 23 are fixedly connected to the lower end of the base plate 13, and the support rods 23 are fixedly connected to the top of the microwave vacuum dryer body 1.

[0056] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0057] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims of this utility model.

Claims

1. A microwave vacuum drying device for automatic quantitative feeding, characterized in that, include: The microwave vacuum dryer body (1) is provided with a feeding mechanism (2) on the top of the microwave vacuum dryer body (1); The feeding mechanism (2) includes an indexing plate (3), which has several storage holes (4) along its circumference. A connecting shaft (5) is fixedly connected to the middle of the indexing plate (3). A partition plate (6) is provided at the upper end of the indexing plate (3) and is rotatably connected to the connecting shaft (5). An arc-shaped groove (7) is provided on the partition plate (6). A first guide groove (8) is fixedly connected to the end of the arc-shaped groove (7), and a second guide groove (9) is fixedly connected to the upper end of the first guide groove (8). The upper end of the connecting shaft (5) is fixedly connected to the transmission shaft (10), and a number of connecting rods (11) are fixedly connected to the top periphery of the transmission shaft (10). The other end of the connecting rod (11) is fixedly connected to the push plate (12). The lower end of the indexing plate (3) is provided with a base plate (13) that is rotatably connected to the connecting shaft (5). The base plate (13) is fixedly connected to the periphery of the partition plate (6). A first through hole (14) is provided on the base plate (13). A conduit (15) is fixedly connected to the lower end of the first through hole (14). A valve (16) is fixedly connected to the conduit (15). The lower end of the conduit (15) is connected to the internal chamber of the microwave vacuum dryer body (1).

2. The microwave vacuum drying device for automatic quantitative feeding according to claim 1, characterized in that, It also includes a cylinder wall (17), the bottom plate (13) is fixedly connected to the bottom of the cylinder wall (17), and the partition plate (6) is fixedly connected to the inside of the cylinder wall (17).

3. The microwave vacuum drying device for automatic quantitative feeding according to claim 2, characterized in that, A motor (18) is fixedly connected to the lower end of the base plate (13), and the output end of the motor (18) is fixedly connected to the connecting shaft (5).

4. The microwave vacuum drying device for automatic quantitative feeding according to claim 3, characterized in that, The second guide channel (9) is a horizontally placed arc-shaped channel.

5. The microwave vacuum drying device for automatic quantitative feeding according to claim 4, characterized in that, A connecting block (19) is fixedly connected to the side wall of the second guide channel (9), and the connecting block (19) is fixedly connected to the cylinder wall (17).

6. The microwave vacuum drying apparatus for automatic quantitative feeding according to claim 5, characterized in that, The second guide channel (9) is an inclined arc-shaped channel.

7. The microwave vacuum drying apparatus for automatic quantitative feeding according to claim 6, characterized in that, A cover plate (20) is fixedly connected to the top of the cylinder wall (17). A second through hole is provided on the cover plate (20). A hopper (22) is fixedly connected to the upper end of the second through hole. The second through hole is located directly above the second guide channel (9).

8. The microwave vacuum drying apparatus for automatic quantitative feeding according to claim 7, characterized in that, The arc-shaped groove (7) is offset from the first through hole (14).

9. The microwave vacuum drying apparatus for automatic quantitative feeding according to claim 1, characterized in that, The lower end of the base plate (13) is fixedly connected to several support rods (23), and the support rods (23) are fixedly connected to the top of the microwave vacuum dryer body (1).

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