Vacuum freeze-drying equipment

Abstract

The utility model relates to the technical field of vacuum drying equipment, in particular to vacuum freeze-drying equipment. The vacuum freeze-drying equipment provided by the utility model solves the technical problem that the vacuum freeze-drying equipment in the prior art is non-uniform in material heating. The vacuum freeze-drying equipment comprises a freeze-drying box, a vacuum freeze-drying chamber is arranged in the freeze-drying box, and a bearing disc for bearing materials is arranged in the vacuum freeze-drying chamber; according to the freeze-drying device, the overturning assembly is arranged and used for overturning the materials in the material groove, and in the freeze-drying process, the overturning assembly enables the materials in the material disc to be in a non-static state, so that the materials in the material groove are evenly heated, and the materials in the material groove have higher freeze-drying efficiency. By arranging the material turning teeth, the material turning teeth do reciprocating motion in the material groove and are used for stirring materials in the material groove, so that the materials in the material groove can be uniformly turned, and the materials in the material groove are uniformly heated.

Description

Technical Field

[0001] This utility model relates to the field of vacuum drying equipment technology, and in particular to a vacuum freeze-drying device. Background Technology

[0002] Vacuum freeze-drying technology is a novel drying method that freezes water-containing materials into a solid state and utilizes the sublimation properties of water under low temperature and low pressure conditions to dehydrate the material. Because vacuum freeze-drying is carried out in a low-temperature, low-oxygen environment, most biological reactions cease, and no liquid water is present during the process; the water sublimates directly in a solid state, maximizing the preservation of the material's original structure and shape, ultimately yielding high-quality dried products with both excellent appearance and internal quality. Currently, vacuum freeze-drying technology has been widely applied in many fields, especially in food processing to obtain high-quality dehydrated foods.

[0003] Existing vacuum freeze-drying equipment typically has a vacuum freeze-drying chamber with a tray for holding materials. The materials are placed directly on the tray for freeze-drying. In this type of vacuum freeze-drying equipment, the materials are stationary on the tray, resulting in uneven heating and degrading the user experience.

[0004] Therefore, existing vacuum freeze-drying equipment suffers from the technical problem of uneven heating of materials. Summary of the Invention

[0005] The present invention provides a vacuum freeze-drying device that solves the technical problem of uneven heating of materials in existing vacuum freeze-drying devices.

[0006] Some implementation schemes for solving the above-mentioned technical problems include:

[0007] A vacuum freeze-drying device includes a freeze-drying chamber, wherein a vacuum freeze-drying chamber is provided inside the freeze-drying chamber, and a support tray for carrying materials is provided inside the vacuum freeze-drying chamber.

[0008] The vacuum freeze-drying chamber is also equipped with a turning component that turns the material in the carrier tray.

[0009] The support plate is provided with a material trough, and the flipping assembly includes a flipping frame that reciprocates along the length direction of the support plate. The flipping frame is provided with flipping teeth extending into the material trough. The flipping teeth are in at least two rows, and the at least two rows of flipping teeth are arranged along the movement direction of the flipping frame. Furthermore, adjacent rows of flipping teeth are staggered. The flipping teeth are fixed to the flipping frame by threads.

[0010] The vacuum freeze-drying chamber is also equipped with a guide for guiding the turning rack;

[0011] The vacuum freeze-drying chamber is also equipped with a motor that drives the reciprocating motion of the turning rack. The motor drives the turning rack to reciprocate motion through a transmission mechanism.

[0012] Preferably, the transmission mechanism includes a lead screw rotatably connected to the vacuum freeze-drying chamber, the turning rack is provided with a screw hole that mates with the lead screw, and the lead screw is driven by the motor.

[0013] Preferably, the transmission mechanism includes a gear rotatably connected to the vacuum freeze-drying chamber, the material turning rack is provided with a rack that meshes with the gear, and the gear is driven by the motor.

[0014] Preferably, the transmission mechanism is a crank-slider mechanism, which includes a crank driven by the motor and a slider fixed to the flipper frame. A connecting rod is provided between the slider and the crank, with one end of the connecting rod rotatably connected to the crank and the other end of the connecting rod rotatably connected to the slider.

[0015] Preferably, the guide includes two guide plates, with a guide groove formed between the two guide plates, and a portion of the flipping frame is located within the guide groove.

[0016] Preferably, there are multiple carrier disks, which are evenly distributed along the vertical direction, and there is a gap between two adjacent carrier disks.

[0017] Preferably, the material turning frame includes a vertical rod that cooperates with the guide, the vertical rod is provided with a horizontal rod, the material turning teeth are provided on the horizontal rod, each of the bearing plates corresponds to an independent horizontal rod, and each horizontal rod is provided with the material turning teeth.

[0018] Preferably, the vertical rod has a rectangular cross-sectional shape, the horizontal rod has a rectangular cross-sectional shape, the horizontal rod is provided with an internal thread for mounting the flipping teeth, and the flipping teeth are provided with an external thread that mates with the internal thread of the horizontal rod.

[0019] Preferably, the horizontal bar and the vertical bar are an integral structure, and ribs are provided between the vertical bar and all the horizontal bars to improve the connection strength between the vertical bar and the horizontal bar.

[0020] Preferably, the freeze-drying chamber includes a chamber body with a vacuum freeze-drying chamber and a lid that seals the chamber body, with a sealing gasket between the chamber body and the lid.

[0021] Compared with the prior art, the present invention has the following advantages:

[0022] By setting up a turning component, the material in the trough is turned over. During the freeze-drying process, the turning component keeps the material in the trough in a non-static state, so that the material in the trough is heated evenly, and the material in the trough has a higher freeze-drying efficiency.

[0023] By setting up tilting teeth, the tilting teeth reciprocate in the trough to agitate the material in the trough, so that the material in the trough can be evenly turned over, thereby making the material in the trough evenly heated.

[0024] By staggering the adjacent rows of tipping teeth, the tipping teeth can agitate all the material in the trough, thereby ensuring that the material in the trough is heated evenly and improving the freeze-drying efficiency of the vacuum freeze-drying equipment. Attached Figure Description

[0025] For illustrative purposes, several embodiments of the present invention are illustrated in the following figures. These figures are incorporated herein by reference and form part of the detailed description. In some cases, well-known structures and components are shown in block diagram form to avoid obscuring the concept of the subject matter of the present invention.

[0026] Figure 1 This is a schematic diagram of the internal structure of this utility model.

[0027] Figure 2 This is a schematic diagram of the present invention.

[0028] Figure 3 for Figure 2 A diagram omitting the lid.

[0029] Figure 4 for Figure 3 A schematic diagram omitting the box body.

[0030] Figure 5 for Figure 4 A schematic diagram omitting the carrier plate.

[0031] Figure 6 This is a schematic diagram of the assembly of the turning teeth and the crossbar.

[0032] As shown in the figure:

[0033] 1. Freeze-drying chamber; 11. Vacuum freeze-drying chamber; 12. Supporting tray; 121. Material trough; 13. Chamber body; 131. Chamber lid.

[0034] 2. Flipping assembly, 21. Flipping frame, 211. Flipping teeth, 22. Guide, 221. Guide plate, 23. Motor, 24. Lead screw, 25. Vertical rod, 26. Horizontal rod. Detailed Implementation

[0035] The specific embodiments shown below are intended to describe various configurations of the subject matter of this invention and are not intended to represent the only configuration in which the subject matter of this invention can be practiced. The specific embodiments include detailed descriptions intended to provide a thorough understanding of the subject matter of this invention. However, it will be clear and apparent to those skilled in the art that the subject matter of this invention is not limited to the specific details shown herein and can be practiced without these specific details.

[0036] Understandably, in this document, relational terms such as “first” and “second” are intended to distinguish one entity or operation from another, and are not intended to expressly or imply any actual relationship or order between these entities or operations.

[0037] The terms “comprising,” “including,” or any other variations thereof are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase “comprising one…” does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0038] Reference Figures 1 to 6 As shown, a vacuum freeze-drying device includes a freeze-drying chamber 1, a vacuum freeze-drying chamber 11 is provided inside the freeze-drying chamber 1, and a support tray 12 for carrying materials is provided inside the vacuum freeze-drying chamber 11.

[0039] The vacuum freeze-drying chamber 11 is also equipped with a turning component 2 for turning the material in the carrier tray 12;

[0040] The support plate 12 is provided with a material trough 121. The flipping assembly 2 includes a flipping frame 21 that reciprocates along the length of the support plate 12. The flipping frame 21 is provided with flipping teeth 211 extending into the material trough 121. The flipping teeth 211 have at least two rows. The at least two rows of flipping teeth 211 are arranged along the movement direction of the flipping frame 21. Furthermore, adjacent rows of flipping teeth 211 are staggered. The flipping teeth 211 are fixed to the flipping frame 21 by threads.

[0041] The vacuum freeze-drying chamber 11 is also equipped with a guide 22 for guiding the turning rack 21;

[0042] The vacuum freeze-drying chamber 11 is also equipped with a motor 23 that drives the material turning frame 21 to reciprocate. The motor 23 drives the material turning frame 21 to reciprocate through a transmission mechanism.

[0043] In some embodiments, when different materials are placed in the trough 121, the volume of the different materials may be inconsistent, therefore the depth to which the tilting teeth 211 extend into the trough 121 also needs to be inconsistent. Therefore, the tilting teeth 211 are fixed to the tilting frame 21 by threads. When it is necessary to adjust the depth of the tilting teeth 211 extending into the trough 121, the depth of the tilting teeth 211 extending into the trough 121 can be easily adjusted by rotating the tilting teeth 211.

[0044] In some embodiments, the transmission mechanism is used to convert the rotary motion of the motor 23 into the reciprocating linear motion of the tilting frame 21. Therefore, there are multiple options for the transmission mechanism. Several commonly used options are described below:

[0045] Option 1: The transmission mechanism includes a lead screw 24 rotatably connected to the vacuum freeze-drying chamber 11, and the material turning frame 21 is provided with a screw hole that cooperates with the lead screw 24. The lead screw 24 is driven by the motor 23.

[0046] Option 2: The transmission mechanism includes a gear rotatably connected to the vacuum freeze-drying chamber 11, and the material turning frame 21 is provided with a rack that meshes with the gear. The gear is driven by the motor 23.

[0047] Option 3: The transmission mechanism is a crank-slider mechanism, which includes a crank driven by the motor 23 and a slider fixed to the flipper 21. A connecting rod is provided between the slider and the crank, with one end of the connecting rod rotatably connected to the crank and the other end of the connecting rod rotatably connected to the slider.

[0048] It is understandable that the function of the transmission mechanism is to convert the rotational motion of the motor 23 into the linear reciprocating motion of the tilting frame 21. Therefore, the specific structure of the transmission mechanism is not limited to the three schemes described above, and other schemes can also be used instead.

[0049] In some embodiments, the guide 22 includes two guide plates 221, and a guide groove is formed between the two guide plates 221. A portion of the flipping frame 21 is located in the guide groove.

[0050] The guide plate 221 can be welded to the freeze-drying chamber 1, or the guide plate 221 can be fixed to the freeze-drying chamber 1 by other fasteners.

[0051] In some embodiments, there are multiple carrier disks 12, which are evenly distributed along the vertical direction, and there is a gap between two adjacent carrier disks 12.

[0052] The gap design facilitates the placement of materials into the trough 121 and prevents interference between the tipping frame 21 and the support plate 12. The trough 121 also prevents materials from falling out, reducing material waste.

[0053] It is understandable that, since the flipping tooth 211 extends into the material trough 121, during the assembly process, the flipping component 2, except for the flipping tooth 211, can be assembled into the vacuum freeze-drying chamber 11 first, and then the carrier plate 12 can be fixed into the vacuum freeze-drying chamber 11 by fasteners, and finally the flipping tooth 211 can be assembled, so that the flipping tooth 211 is easy to assemble.

[0054] Reference Figures 1 to 6 As shown, in some embodiments, the material turning frame 21 includes a vertical rod 25 that cooperates with the guide 22. The vertical rod 25 is provided with a horizontal rod 26. The material turning teeth 211 are provided on the horizontal rod 26. Each of the bearing plates 12 corresponds to an independent horizontal rod 26. Each horizontal rod 26 is provided with the material turning teeth 211.

[0055] In some embodiments, the vertical rod 25 has a rectangular cross-sectional shape, the horizontal rod 26 has a rectangular cross-sectional shape, the horizontal rod 26 is provided with an internal thread for mounting the flipping tooth 211, and the flipping tooth 211 is provided with an external thread that mates with the internal thread of the horizontal rod 26.

[0056] Reference Figures 1 to 6 As shown, in some embodiments, the crossbar 26 and the vertical bar 25 are an integral structure, and ribs are provided between the vertical bar 25 and all the crossbars 26 to improve the connection strength between the vertical bar 25 and the crossbar 26.

[0057] In some embodiments, the rib plate, vertical bar 25, and horizontal bar 26 are integral structures.

[0058] In some embodiments, the freeze-drying chamber 1 includes a chamber body 13 with a vacuum freeze-drying chamber 11 and a chamber cover 131 that seals the chamber body 13, with a sealing gasket provided between the chamber body 13 and the chamber cover 131.

[0059] In some embodiments, the sealing gasket can be adhered to the housing 13, and the housing cover 131 can be fixed to the housing 13 in any way, for example, by means of a hinge.

[0060] The above describes the subject matter technical solution of this utility model and its corresponding details. It is understood that the above description is only some implementation schemes of the subject matter technical solution of this utility model, and some details may be omitted in the specific implementation.

[0061] Furthermore, in some embodiments of the above utility model, multiple embodiments may be combined; however, due to space limitations, all such combinations will not be listed here. Those skilled in the art can freely combine the above embodiments according to their needs to achieve a better application experience.

[0062] When implementing the subject matter technical solution of this utility model, those skilled in the art can obtain other detailed configurations or drawings based on the subject matter technical solution and the accompanying drawings. Obviously, these details are still within the scope of the subject matter technical solution of this utility model without departing from it.

Claims

1. A vacuum freeze-drying apparatus, characterized in that: The system includes a freeze-drying chamber (1), which is equipped with a vacuum freeze-drying chamber (11). The vacuum freeze-drying chamber (11) is equipped with a support tray (12) for carrying materials. The vacuum freeze-drying chamber (11) is also equipped with a turning assembly (2) for turning the materials in the support tray (12). The support tray (12) is equipped with a material trough (121). The turning assembly (2) includes a turning frame (21) that reciprocates along the length of the support tray (12). The turning frame (21) is equipped with turning teeth (211) extending into the material trough (121). (211) There are at least two rows of turning teeth (211) arranged along the movement direction of the turning frame (21), and the two adjacent rows of turning teeth (211) are staggered. The turning teeth (211) are fixed to the turning frame (21) by threads. The vacuum freeze-drying chamber (11) is also provided with a guide (22) for guiding the turning frame (21). The vacuum freeze-drying chamber (11) is also provided with a motor (23) for driving the turning frame (21) to reciprocate. The motor (23) drives the turning frame (21) to reciprocate through a transmission mechanism.

2. The vacuum freeze-drying equipment according to claim 1, characterized in that: The transmission mechanism includes a lead screw (24) rotatably connected to the vacuum freeze-drying chamber (11), and the turning rack (21) is provided with a screw hole that cooperates with the lead screw (24). The lead screw (24) is driven by the motor (23).

3. The vacuum freeze-drying equipment according to claim 1, characterized in that: The transmission mechanism includes a gear rotatably connected to the vacuum freeze-drying chamber (11), and the turning rack (21) is provided with a rack that meshes with the gear. The gear is driven by the motor (23).

4. The vacuum freeze-drying equipment according to claim 1, characterized in that: The transmission mechanism is a crank-slider mechanism, which includes a crank driven by the motor (23) and a slider fixed to the flipper (21). A connecting rod is provided between the slider and the crank, with one end of the connecting rod rotatably connected to the crank and the other end of the connecting rod rotatably connected to the slider.

5. The vacuum freeze-drying equipment according to claim 1, characterized in that: The guide (22) includes a guide plate (221), there are two guide plates (221), and a guide groove is formed between the two guide plates (221). A part of the flipping rack (21) is located in the guide groove.

6. The vacuum freeze-drying apparatus according to any one of claims 1 to 5, characterized in that: There are multiple carrier disks (12), which are evenly distributed in the vertical direction, and there is a gap between two adjacent carrier disks (12).

7. The vacuum freeze-drying apparatus according to claim 6, characterized in that: The material turning frame (21) includes a vertical rod (25) that cooperates with the guide (22). The vertical rod (25) is provided with a horizontal rod (26). The material turning teeth (211) are provided on the horizontal rod (26). Each of the bearing plates (12) corresponds to an independent horizontal rod (26). Each horizontal rod (26) is provided with the material turning teeth (211).

8. The vacuum freeze-drying apparatus according to claim 7, characterized in that: The vertical rod (25) has a rectangular cross-section, the horizontal rod (26) has a rectangular cross-section, the horizontal rod (26) is provided with an internal thread for installing the flipping tooth (211), and the flipping tooth (211) is provided with an external thread that mates with the internal thread of the horizontal rod (26).

9. The vacuum freeze-drying apparatus according to claim 8, characterized in that: The horizontal bar (26) and the vertical bar (25) are an integral structure. Ribs are provided between the vertical bar (25) and all the horizontal bars (26) to improve the connection strength between the vertical bar (25) and the horizontal bar (26).

10. The vacuum freeze-drying apparatus according to claim 1, characterized in that: The freeze-drying box (1) includes a box body (13) with a vacuum freeze-drying chamber (11) and a box cover (131) that seals the box body (13), with a sealing gasket between the box body (13) and the box cover (131).

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