Multi-bin type lycium barbarum fresh-locking freeze-drying equipment

Abstract

The invention relates to the technical field of drying, in particular to multi-bin type lycium barbarum fresh-locking freeze-drying equipment. The material tray at least comprises five material trays, and supporting frames are arranged at the bottoms of the five material trays. Through cooperation of the supporting frame and the vibration mechanism, the problems of material accumulation and uneven drying in traditional lycium barbarum freeze drying are effectively solved, the supporting frame dynamically restrains the material disc in the working space of the vibration mechanism through elastic deformation, and meanwhile the vibration mechanism and the supporting frame cooperate to form a three-dimensional space limiting mechanism; the fixing frame is slidably connected with the clamping block, the displacement freedom degree of the material disc in the vertical and horizontal directions is effectively restrained, the material disc is prevented from impacting the freeze drying box body through large-amplitude movement, stable operation of equipment is guaranteed, and lycium barbarum is prevented from falling off. And moreover, the vibration mechanism applies rotation driving force to enable the material disc to generate multidirectional oscillation, so that the Chinese wolfberries are periodically turned over on the surface of the material disc, and the damped surfaces of the Chinese wolfberries are fully exposed in the drying medium.

Description

Technical Field

[0001] The present invention relates to the technical field of drying, and specifically, to a multi-bin fresh-keeping freeze-drying equipment for wolfberries. Background Art

[0002] The multi-bin fresh-keeping freeze-drying equipment for wolfberries is a special equipment for freeze-drying and processing wolfberries. By placing wolfberries in a low-temperature and vacuum environment, the moisture in the wolfberries directly sublimes from a solid state to a gaseous state, thereby achieving the purpose of drying and fresh-keeping. The equipment has multiple independent drying bins, which can process wolfberries of different batches or varieties simultaneously, improving production efficiency and flexibility. Using freeze-drying technology, it can retain the nutritional components, color, taste and shape of wolfberries to the greatest extent, extend the shelf life of wolfberries, and at the same time ensure that they can be restored to a state close to freshness after rehydration.

[0003] In the field of wolfberry processing, freeze-drying technology is an important means to retain its nutritional components and extend the shelf life. Traditional wolfberry freeze-drying equipment and processes have drawbacks. The way of placing materials is unreasonable, and a static support fixed structure is often used, resulting in the material trays carrying wolfberries being statically placed. Due to gravity, wolfberries are extremely prone to stacking and piling up. A local closed space is formed between the materials in contact, which greatly hinders the uniform coverage of the freeze-drying medium, such as low-temperature nitrogen gas flow, on the wet surface of wolfberries. This directly leads to a serious decline in the phase change mass transfer efficiency, significantly prolongs the fresh-keeping cycle, and it is difficult to ensure the uniformity of wolfberry drying, seriously affecting the product quality. In view of this, we propose a multi-bin fresh-keeping freeze-drying equipment for wolfberries. Summary of the Invention

[0004] The purpose of the present invention is to provide a multi-bin fresh-keeping freeze-drying equipment for wolfberries to solve the problems of material accumulation, uneven drying, displacement of material trays and difficulty in full tumbling of wolfberries in traditional wolfberry freeze-drying as mentioned in the above background art.

[0005] To achieve the above purpose, the present invention provides a multi-bin fresh-keeping freeze-drying equipment for wolfberries, which at least includes:

[0006] Five material trays, and support frames are arranged at the bottoms of the five material trays;

[0007] Five vibration mechanisms, the five vibration mechanisms are respectively installed on both sides of the five material trays, and support columns are fixedly connected between the five vibration mechanisms. A freeze-drying chamber main body is arranged outside the five vibration mechanisms;

[0008] During the process of supporting the material tray, the support frame dynamically confines the material tray within the working space of the vibration mechanism through elastic deformation. Driven by the rotational driving force applied by the vibration mechanism, the material tray generates multi-directional oscillations. Meanwhile, the vibration mechanism and the support frame cooperate to form a three-dimensional space limiting mechanism, suppressing the displacement freedom of the material tray in the vertical and horizontal directions, and prompting the goji berries to undergo periodic tumbling movements on the surface of the material tray, so that their damp surfaces are fully exposed to the drying medium.

[0009] The beneficial effects of the present invention are as follows:

[0010] 1. In the present invention, through the cooperation of the support frame and the vibration mechanism, the problems of material accumulation and uneven drying in traditional freeze-drying of goji berries are effectively solved. The support frame dynamically confines the material tray within the working space of the vibration mechanism through elastic deformation. At the same time, the vibration mechanism and the support frame cooperate to form a three-dimensional space limiting mechanism. The fixed frame is slidably connected to the clamping block, effectively suppressing the displacement freedom of the material tray in the vertical and horizontal directions, preventing the material tray from moving greatly and hitting the main body of the freeze-drying chamber, ensuring the stable operation of the equipment, and avoiding the dropping of goji berries.

[0011] Moreover, the vibration mechanism applies a rotational driving force to cause the material tray to generate multi-directional oscillations, prompting the goji berries to undergo periodic tumbling movements on the surface of the material tray, so that the damp surfaces of the goji berries are fully exposed to the drying medium, improving the efficiency and uniformity of freeze-drying, helping to better retain the nutritional components of the goji berries, and achieving the purpose of freshness preservation. The cooperation of the support frame and the vibration mechanism not only realizes the three-dimensional space limitation of the material tray to prevent its displacement and collision, but also enables the goji berries to tumble periodically on the material tray, making the damp surfaces fully exposed to the drying medium, and enhancing the freeze-drying efficiency.

[0012] As a further improvement of the technical solution, a pull rod is fixedly connected to the middle of the support frame. Clamping blocks are fixedly connected to the tops of both ends of the support frame. The clamping blocks are slidably connected to the vibration mechanism. First elastic compression damping rods are also fixedly connected to the tops of both ends of the support frame, and the elastic damping rods are located in the middle of the clamping blocks. Sliding blocks are fixedly connected to both sides of the support frame. Sliding rails for the sliding of the sliding blocks are provided on both sides inside the main body of the freeze-drying chamber, and the sliding rails are adapted to the sliding blocks.

[0013] The beneficial effect of adopting the above further scheme is that the first elastic compression damping rods are connected to the tops of both ends of the support frame and are located in the middle of the clamping blocks, having the functions of buffering and shock absorption. When the vibration mechanism drives the material tray to vibrate, the elastic compression damping rods can absorb and slow down the impact force of the vibration, avoiding damage to the material tray due to excessive vibration, and at the same time reducing the vibration transmission to other components, improving the stability and reliability of the equipment, and also helping the material tray to better achieve limiting and reset during the vibration process through elastic deformation.

[0014] As a further improvement of this technical solution, each of the five vibration mechanisms includes a second elastic compression damping rod fixedly connected to both sides inside the main body of the freeze-drying chamber. The main body of the freeze-drying chamber is elastically connected to a fixed frame through the second elastic compression damping rod. A groove adapted to the material tray is provided inside the fixed frame for placing the material tray. A rotating rod is provided at the top of the fixed frame located at the top of the main body of the freeze-drying chamber. One end of the rotating rod is rotatably connected to an eccentric wheel. The rotating rod is rotatably connected to the top of the support column. The fixed frame and the clamping block are connected in a sliding manner. Through the cooperation of the fixed frame, the support frame and the clamping block, the displacement degrees of freedom of the material tray in the vertical and horizontal directions are restricted. An installation groove is provided on one side at the top of the main body of the freeze-drying chamber. A driving motor is fixedly installed inside the installation groove. The output end of the driving motor is fixedly connected to the inner wall of the eccentric wheel. The front surface of the main body of the freeze-drying chamber is hinged with a sealing door through a hinge. The bottom of the main body of the freeze-drying chamber is fixedly installed with universal wheels in a rectangular array.

[0015] The beneficial effect of adopting the above further solution is that the groove inside the fixed frame is used to place the material tray and is slidably connected to the clamping block. Cooperating with the first elastic compression damping rod on the support frame, the three cooperate to construct a three-dimensional space limiting mechanism. During the vibration of the material tray, the displacement degrees of freedom of the material tray in the vertical and horizontal directions are effectively restricted, preventing the material tray from moving greatly and hitting the box body, ensuring the stable operation of the equipment, and avoiding the damage of goji berries due to dropping.

[0016] In addition to the purposes, features and advantages described above, the present invention has other purposes, features and advantages. The present invention will be further described in detail below with reference to the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure assembly of the present invention;

[0018] Figure 2 It is a schematic diagram of the support frame and the vibration mechanism of the present invention;

[0019] Figure 3 It is a motion demonstration diagram of the vibration mechanism of the present invention;

[0020] Figure 4 It is a cross-sectional view of the support frame and the vibration mechanism of the present invention;

[0021] Figure 5 It is of the present invention Figure 4 Schematic diagram at position A;

[0022] Figure 6 It is a schematic diagram of the overall cutting of the present invention.

[0023] The meanings of the various reference numerals in the figure are as follows:

[0024] 100. Material tray;

[0025] 200. Support frame; 201. Pull rod; 202. Clamping block; 203. Sliding block; 204. Slide rail;

[0026] 300. Vibration mechanism; 301. Fixed frame; 302. Rotating rod; 303. Eccentric wheel;

[0027] 400. Support column;

[0028] 500. Main body of freeze - drying chamber; 501. Driving motor; 502. Sealing door. Detailed implementation manners

[0029] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present invention.

[0030] The present invention provides the following preferred embodiments

[0031] Please refer to Figures 1-6 As shown, this embodiment provides a multi - chamber wolfberry fresh - keeping freeze - drying device, which at least includes:

[0032] Five material trays 100, the bottoms of the five material trays 100 are all provided with support frames 200, and through holes are opened on the five material trays 100 for freeze - drying wolfberries, so that the freeze - drying medium can fully contact the wolfberries;

[0033] Five vibration mechanisms 300, the five vibration mechanisms 300 are respectively installed on both sides of the five material trays 100, and a support column 400 is fixedly connected between the five vibration mechanisms 300. The support column 400 integrates the five vibration mechanisms 300 into the same power transmission system to achieve multi - chamber synchronous drive, through the force transmission of the support column 400;

[0034] A freeze - drying chamber main body 500 is arranged outside the five vibration mechanisms 300. The freeze - drying chamber main body 500 belongs to the prior art and is briefly summarized as follows: The temperature inside the chamber is rapidly reduced through a refrigeration system to freeze the wolfberries. Then, the equipment starts a vacuum system to extract the air inside the chamber to form a vacuum environment, so that the ice directly sublimes into water vapor. At the same time, a heating system provides appropriate heat to accelerate the sublimation process, gradually removing the moisture in the wolfberries. During the whole process, a control system precisely regulates parameters such as temperature and vacuum degree to ensure that the wolfberries are efficiently dried under low - temperature and vacuum conditions, and their nutritional components and color are retained to the greatest extent to achieve the purpose of fresh - keeping;

[0035] During the process of supporting the material tray 100, the support frame 200 dynamically confines the material tray 100 within the working space of the vibration mechanism 300 through elastic deformation. Driven by the rotational driving force applied by the vibration mechanism 300, the material tray 100 generates multi-directional oscillations. At the same time, the vibration mechanism 300 and the support frame 200 cooperate to form a three-dimensional space limiting mechanism, suppressing the displacement degrees of freedom of the material tray 100 in the vertical and horizontal directions, and prompting the goji berries to undergo periodic tumbling movements on the surface of the material tray 100, so that their damp surfaces are fully exposed to the drying medium.

[0036] Therefore, based on the above characteristics, the improvement points of the present invention are described in detail:

[0037] Considering that existing multi-bin goji berry fresh-keeping freeze-drying equipment generally adopts a static support fixed structure, that is, a rigid support frame is set in the equipment cavity, and the material tray 100 carrying the goji berries is statically placed on the support plane. This method is likely to cause the goji berries to stack up due to gravity, resulting in the formation of local closed spaces between the materials, hindering the uniform coverage of the damp surfaces of the goji berries by freeze-drying media such as low-temperature nitrogen gas flow, and then causing a decrease in the phase change mass transfer efficiency and significantly extending the fresh-keeping cycle. Therefore, in this solution, a multi-degree-of-freedom vibration mechanism 300 is innovatively introduced to apply mechanical oscillations to the material tray 100. On the one hand, it makes the goji berries more evenly distributed on the material tray 100, prevents stacking due to gravity, and reduces the formation of local closed spaces; on the other hand, it enables freeze-drying media such as low-temperature nitrogen gas flow to more evenly cover the damp surfaces of the goji berries, creates good conditions for the freeze-drying process, enables the moisture in the goji berries to be sublimated and removed more efficiently, thereby shortening the fresh-keeping cycle, better retaining the nutritional components and color of the goji berries, and improving the effect and quality of goji berry fresh-keeping freeze-drying;

[0038] Moreover, when the material tray 100 is placed in the vibration mechanism 300, if there is a lack of limiting measures, the vibration mechanism 300 is very likely to drive the material tray 100 to displace during operation, causing the material tray 100 to shake violently and hit the main body 500 of the freeze-drying chamber, resulting in the scattering of the goji berries and seriously affecting the fresh-keeping effect. Therefore, by utilizing the elastic deformation characteristics of the support frame 200, the material tray 100 is dynamically limited within the working range of the vibration mechanism 300. First, the support frame 200 and the vibration mechanism 300 complement each other to construct a three-dimensional space limiting system, effectively curbing the displacement of the material tray 100 in the vertical and horizontal directions, effectively avoiding the material tray 100 hitting the main body 500 of the freeze-drying chamber due to large displacements, preventing the equipment from being damaged by collisions, extending the service life of the equipment, and reducing the equipment maintenance cost and shutdown risk; second, the support frame 200 provides a stable support for the material tray 100, ensuring that the goji berries remain in an orderly state during the freeze-drying process and ensuring the efficiency and stability of the fresh-keeping process.

[0039] On this basis, the specific structure is disclosed in detail:

[0040] First, in order to ensure the stability of the material tray 100 during dynamic movement, the support frame 200 is disclosed in detail. As Figure 2 shown, a pull rod 201 is fixedly connected to the middle of the support frame 200. At the top of both ends of the support frame 200, clamping blocks 202 are fixedly connected, and the clamping blocks 202 are slidably connected to the vibration mechanism 300. At the top of both ends of the support frame 200, a first elastic compression damping rod is also fixedly connected, and the elastic damping rod is located in the middle of the clamping block 202. Pull down the pull rod 201, which drives the support frame 200 and the clamping block 202 to move downward synchronously. At this time, place the material tray 100 loaded with goji berries in the working space of the vibration mechanism 300. After releasing the pull rod 201, the first elastic compression damping rod on the support frame 200 takes effect and drives the support frame 200 to move upward, effectively suppressing the displacement freedom of the material tray 100 in the vertical and horizontal directions, thereby ensuring the stability of the material tray 100 during the movement process and providing reliable conditions for the freeze-drying operation of goji berries;

[0041] Among them, the first elastic compression damping rod usually works based on elastic materials and damping mechanisms. The principle is that when subjected to an external force, the elastic material undergoes elastic deformation, temporarily storing the energy of the external force as elastic potential energy, playing a role in buffering and shock absorption. At the same time, the damping mechanism consumes a part of the energy and converts it into other forms such as heat energy, thereby suppressing the excessive vibration and rebound of the elastic material, enabling the first elastic compression damping rod to quickly stabilize during the compression and rebound processes.

[0042] Specifically, in order to ensure the stability of the first elastic compression damping rod driving the support frame 200 to move, sliding blocks 203 are fixedly connected to both sides of the support frame 200. On both sides inside the freeze-drying chamber main body 500, slide rails 204 for the sliding blocks 203 to slide are provided, and the slide rails 204 are adapted to the sliding blocks 203, enabling the support frame 200 to move steadily inside the freeze-drying chamber main body 500 while supporting the material tray 100.

[0043] Furthermore, to expose the wet surface of the goji berries, the vibration mechanism 300 is disclosed in detail. As Figures 3-5As shown in the figure, each of the five vibration mechanisms 300 includes a second elastic compression damping rod fixedly connected to both sides inside the freeze-drying chamber main body 500. The freeze-drying chamber main body 500 is elastically connected with a fixed frame 301 through the second elastic compression damping rod. A groove adapted to the material tray 100 is provided inside the fixed frame 301 for placing the material tray 100. A rotating rod 302 is provided at the top of the fixed frame 301 located at the top of the freeze-drying chamber main body 500, and an eccentric wheel 303 is rotatably connected to one end of the rotating rod 302. The rotating rod 302 is rotatably connected to the top of the support column 400. The five fixed frames 301 in the five vibration mechanisms 300 are connected through the support column 400. When the eccentric wheel 303 starts to operate, due to its unique eccentric structural characteristics, it drives the rotating rod 302 to rotate accordingly. The rotational movement of the rotating rod 302 then causes the fixed frame 301 to generate high-frequency oscillations, enabling the goji berries on the material tray 100 to fully roll and displace, effectively avoiding the accumulation phenomenon, thereby exposing the wet surface of the goji berries and accelerating the freeze-drying speed. At the same time, during the movement of the fixed frame 301, the second elastic compression damping rod performs telescopic movements in real time and adaptively according to its elastic deformation and damping characteristics, not only ensuring the stability of the oscillating movement of the fixed frame 301 but also effectively regulating its movement amplitude and frequency. The principle of the second elastic compression damping rod is the same as that of the first elastic compression damping rod;

[0044] Among them, the coordinated movement of the vibration mechanism 300 and the support frame 200 is as follows Figure 3 As shown in the figure, rotate the support frame 200 downward along the b1 direction to expose the groove in the fixed frame 301. Then place both ends of the material tray 100 in the groove. After releasing the support frame 200, the first elastic compression damping rod drives the support frame 200 to reset, driving the block 202 to move in the direction opposite to b1. The block 202 and the fixed frame 301 cooperate to effectively limit the displacement of the material tray 100 in the vertical and horizontal directions;

[0045] Start the drive motor 501, which drives the eccentric wheel 303 to rotate along the a1 direction. The rotation of the eccentric wheel 303 drives the rotating rod 302 to rotate in the same direction, and at the same time makes the material tray 100 move along the a2 direction, thereby enabling the goji berries on the material tray 100 to move along the a3 direction. As the eccentric wheel 303 continues to rotate, the material tray 100 vibrates, causing the goji berries to continuously roll on the tray, achieving uniform processing.

[0046] Specifically, the fixed frame 301 and the clamping block 202 are connected in a sliding manner. Through the collaborative cooperation of the fixed frame 301, the support frame 200, and the clamping block 202, the displacement degrees of freedom of the material tray 100 in the vertical and horizontal directions are inhibited. When the clamping block 202 slides to a specific position below the fixed frame 301, both ends of the material tray 100 carrying wolfberries are precisely inserted into the preset grooves of the fixed frame 301. Subsequently, by virtue of the elastic reset characteristic of the first elastic compression damping rod on the support frame 200, the clamping block 202 is driven to return to its original position, forming a stable and reliable limiting constraint mechanism, thereby firmly fixing the material tray 100 to ensure its stability during subsequent operation processes.

[0047] Then, in order to drive the vibration mechanism 300 to move, the structure installed inside the freeze-drying chamber main body 500 is further disclosed, as Figure 6 shown, an installation groove is provided on one side of the top of the freeze-drying chamber main body 500. A driving motor 501 is fixedly installed inside the installation groove. The output end of the driving motor 501 is fixedly connected to the inner wall of the eccentric wheel 303. The driving motor 501 provides driving force for the vibration of the vibration mechanism 300. When the driving motor 501 is started, its operating power is transmitted to the eccentric wheel 303, prompting the eccentric wheel 303 to continuously rotate. The rotation of the eccentric wheel 303 further drives the rotating rod 302 to rotate accordingly, and the rotation of the rotating rod 302 drives the fixed frame 301 to vibrate. The vibration of the fixed frame 301 is transmitted to the material tray 100, causing the wolfberries on the tray to continuously roll, thereby achieving the effects of uniform distribution and full contact with the drying medium;

[0048] Specifically, a sealing door 502 is hinged to the front of the freeze-drying chamber main body 500. Universal wheels are fixedly installed in a rectangular array at the bottom of the freeze-drying chamber main body 500. The device can be moved to the place where wolfberries need to be freeze-dried through the universal wheels, and it is relatively convenient to carry.

[0049] In summary, the working steps of the present invention are as follows:

[0050] First, pull down the support frame 200 to expose the grooves of the fixed frame 301. Place both ends of the material tray 100 into the grooves, release the support frame 200, and the first elastic damping rod drives its reset. The clamping block 202 and the fixed frame 301 cooperate to complete the limiting of the material tray 100. Then, close the sealing door 502 of the freeze-drying chamber, start the driving motor 501, the motor drives the eccentric wheel 303 to rotate, and further rotates the rotating rod 302, driving the fixed frame 301 to vibrate, driving the material tray 100 to generate multi-directional oscillations, and making the wolfberries roll on the material tray 100. Finally, the refrigeration and vacuum systems inside the freeze-drying chamber main body 500 operate to perform fresh-keeping freeze-drying on the wolfberries in the vibrating and rolling state. After drying is completed, open the sealing door 502 and take out the material tray 100.

[0051] The foregoing has shown and described the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and the descriptions in the specification are only preferred examples of the present invention and are not used to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of the present invention claimed is defined by the appended claims and their equivalents.

Claims

1. A multi-bin wolfberry fresh-keeping freeze-drying device, characterized in that: At least include: Five material trays (100), and support frames (200) are provided at the bottoms of the five material trays (100); Five vibration mechanisms (300), the five vibration mechanisms (300) are respectively installed on both sides of the five material trays (100), and support columns (400) are fixedly connected between the five vibration mechanisms (300), and a freeze-drying box main body (500) is arranged outside the five vibration mechanisms (300); During the process of the support frame (200) supporting the material tray (100), the material tray (100) is dynamically constrained within the working space of the vibration mechanism (300) through elastic deformation. The material tray (100) is driven to generate multi-directional oscillations by the rotational driving force applied by the vibration mechanism (300). At the same time, the vibration mechanism (300) and the support frame (200) cooperate to form a three-dimensional space limiting mechanism, inhibiting the displacement freedom of the material tray (100) in the vertical and horizontal directions, and promoting the wolfberries to undergo periodic tumbling movements on the surface of the material tray (100), so that the damp surface is fully exposed to the drying medium.

2. The multi-bin wolfberry fresh-keeping freeze-drying equipment according to claim 1, wherein: A pull rod (201) is fixedly connected to the middle of the support frame (200), and clamping blocks (202) are fixedly connected to the tops of both ends of the support frame (200).

3. The multi-bin wolfberry freshness-locking freeze-drying equipment according to claim 2, wherein: The clamping blocks (202) are slidably connected to the vibration mechanism (300), and first elastic compression damping rods are also fixedly connected to the tops of both ends of the support frame (200), and the elastic damping rods are located in the middle of the clamping blocks (202).

4. The multi-bin wolfberry fresh-keeping freeze-drying equipment according to claim 1, wherein: Sliding blocks (203) are fixedly connected to both sides of the support frame (200), sliding rails (204) for the sliding blocks (203) to slide are provided on both sides inside the freeze-drying box main body (500), and the sliding rails (204) are adapted to the sliding blocks (203).

5. The multi-bin wolfberry freshness-locking freeze-drying equipment according to claim 1, characterized in that: Each of the five vibration mechanisms (300) includes second elastic compression damping rods fixedly connected to both sides inside the freeze-drying box main body (500), and the freeze-drying box main body (500) is elastically connected to a fixed frame (301) through the second elastic compression damping rods.

6. The multi-bin wolfberry fresh-keeping freeze-drying equipment according to claim 5, characterized in that: A groove adapted to the material tray (100) is provided inside the fixed frame (301) for placing the material tray (100), and a rotating rod (302) is provided at the top of the fixed frame (301) located at the top of the freeze-drying box main body (500).

7. The multi-bin wolfberry freshness-locking freeze-drying equipment according to claim 6, characterized in that: One end of the rotating rod (302) is rotatably connected to an eccentric wheel (303), and the rotating rod (302) is rotatably connected to the top of the support column (400).

8. The multi-bin wolfberry freshness-locking freeze-drying equipment according to claim 6, characterized in that: The fixed frame (301) and the clamping block (202) adopt a sliding connection method. Through the cooperation of the fixed frame (301), the support frame (200) and the clamping block (202), the displacement freedom of the material tray (100) in the vertical and horizontal directions is inhibited.

9. The multi-bin wolfberry freshness-locked freeze-drying equipment according to claim 1, wherein: An installation groove is provided on one side at the top of the freeze-drying box main body (500), and a driving motor (501) is fixedly installed inside the installation groove.

10. The multi-bin wolfberry fresh-keeping freeze-drying equipment according to claim 9, wherein: The output end of the driving motor (501) is fixedly connected to the inner wall of the eccentric wheel (303). A sealing door (502) is hinged to the front of the freeze-drying box main body (500) through a hinge. The bottom of the freeze-drying box main body (500) is fixedly installed with universal wheels in a rectangular array.

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