Vacuum dryer for freeze-drying production

Abstract

The utility model provides a vacuum drying machine for freeze-drying production, which relates to the technical field of vacuum freezing and comprises a drying machine body, an inner cavity for placing products is arranged inside the drying machine body, two sliding cavities and a sealing cavity are arranged at the bottom of the inner cavity, the sealing cavity is arranged on the right side wall of the drying machine body, and a driving part is arranged on the right side wall of the drying machine body. The driving part is integrally installed on the drying machine body, through the integrated design of the sliding supporting storage assembly and a sliding cavity of the drying machine body, second moving wheels can horizontally stretch out and draw back along the sliding cavity, and transverse extension caused by pulling out of a sliding plate in a comparison file is avoided; meanwhile, the lead screw and the linear optical shaft are integrated in the mounting seat by the driving part, so that the occupied area of an external structure is reduced, the occupied area of equipment is reduced, and the device is particularly suitable for a plurality of compact production lines arranged in parallel.

Description

A vacuum dryer for freeze-drying production Technical Field

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

[0002] Pet freeze-drying, also known as vacuum freeze-drying, works by rapidly freezing pet food containing moisture, such as chicken breast, beef, and vegetables, in a low-temperature vacuum environment. This causes the ice to sublimate directly into water vapor, removing the moisture from the food and thus drying the material. After freeze-drying, pet food is bulky and difficult to package, so it needs further processing to be cut into pieces. However, current cutting devices have low processing efficiency.

[0003] In the field of freeze-dried product manufacturing, the material loading and unloading efficiency and operational convenience of vacuum freeze dryers have always been key concerns for the industry. In the prior art, for example, prior art document (utility model patent CN221666403U) discloses a vacuum freeze dryer for freeze-dried bird's nest products. This machine solves the problem of limited operating space in traditional equipment by incorporating a removable bird's nest product placement cart. This cart can be moved by wheels and used as a transfer vehicle.

[0004] However, the above solution still has the following shortcomings when implemented:

[0005] The bird's nest product placement cart of the equipment moves via the first traveling wheel at the bottom of the substrate and the second traveling wheel at the bottom of the slide plate. When the placement cart is moved into the vacuum freeze-drying chamber for operation, the rest of the structure of the placement cart still extends laterally and cannot be removed, occupying the operating space outside the dryer. As a result, the space cannot be properly circulated during processing, and the space utilization rate is low.

[0006] Therefore, we propose a vacuum dryer for freeze-drying production. Summary of the Invention

[0007] The purpose of this invention is to address the shortcomings of the existing technology. The device is moved by the first traveling wheel at the bottom of the substrate and the second traveling wheel at the bottom of the slide plate. When the device is moved into the vacuum freeze-drying chamber for operation, the rest of the device structure still extends laterally and cannot be removed, occupying the operating space outside the dryer. This results in the space not being able to flow normally during processing, leading to low space utilization.

[0008] To achieve the above objectives, the present invention adopts the following technical solution:

[0009] A vacuum dryer for freeze-drying production includes a dryer body, the interior of which has an inner cavity for placing products, and two sliding cavities are provided at the bottom of the inner cavity; a sealing cavity is provided on the right side wall of the dryer body; and a drive unit is integrated and mounted on the dryer body.

[0010] A sliding support storage assembly is disposed inside the dryer body. It includes a side plate, a movable support structure, and a placement structure. The side plate is rectangular and fits snugly against the side of the dryer body. The two side walls of the side plate are connected to the drive unit. When the drive unit drives the side plate to move horizontally, it simultaneously extends the movable support structure and the placement structure. The movable support structure is disposed on the inner wall of the side plate to provide auxiliary support when the side plate extends. The placement structure is installed on top of the movable support structure for storing materials.

[0011] As a preferred embodiment of this utility model, the sliding support storage assembly further includes:

[0012] A sealing block is inserted into the sealing cavity and forms a seal by pressing against the inner wall of the sealing cavity.

[0013] As a preferred embodiment of this utility model, the movable support structure includes:

[0014] A movable base, which is fixedly installed on the inner side wall of the side plate;

[0015] Two first movable wheels are fixedly installed at the bottom of the side plate for sliding in contact with the ground to achieve auxiliary support sliding;

[0016] Two second movable wheels are fixedly mounted on the bottom of the movable base and are used to connect with the two sliding cavities to achieve auxiliary sliding and limiting.

[0017] As a preferred embodiment of this utility model, the placement structure includes:

[0018] A storage frame has a placement cavity inside. Several slots are provided through the top and side walls of the storage frame to connect the placement cavity to the external space.

[0019] Several sliding grooves are provided on both sides of the storage frame and are staggered with several grooves.

[0020] Several storage boxes are provided, and sliders are fixedly installed on both sides of the storage boxes to slide the storage boxes in the sliding grooves so as to pull them out and take them out.

[0021] A limiting component is provided at the top of the storage frame to limit the storage frames during drying and prevent them from accidentally sliding out.

[0022] A plug-in slot is provided on the front of the storage frame for fixing and disassembling the limiting component via a plug rod.

[0023] As a preferred embodiment of this utility model, the limiting component includes:

[0024] A limiting baffle is provided, which has an opening for connecting the insertion rod. The limiting baffle is rotatably installed in the mounting groove on the front of the storage frame via a rotating rod and a bearing.

[0025] An abutment block is fixedly installed on the front of the storage frame and near the right side. The abutment block is used to support the limiting baffle when the limiting baffle is released.

[0026] As a preferred embodiment of this utility model, the drive unit includes:

[0027] Two mounting bases are fixedly installed on the two side walls of the dryer body, and each mounting base has a mounting cavity at the top.

[0028] A lead screw is disposed in the mounting cavity of one of the mounting bases, and a drive motor is provided at the input end, which drives the lead screw to rotate.

[0029] A linear optical axis is disposed within the mounting cavity of another mounting base for supporting sliding.

[0030] Two slider bodies are respectively mounted on the lead screw and the linear optical axis;

[0031] Two connecting seats, one end of which is fixed to the slider body and the other end of which is fixed to the side wall of the sliding support storage assembly, are used to drive the sliding support storage assembly to extend or retract.

[0032] Compared with the prior art, the beneficial effects of this utility model are:

[0033] In this invention, through the integrated design of the sliding support storage component and the sliding cavity of the dryer body, the second moving wheel can extend and retract horizontally along the sliding cavity, avoiding the lateral extension caused by the slide plate being pulled out in the prior art; at the same time, the drive unit integrates the lead screw and linear optical axis into the mounting base, reducing the footprint of the external structure and reducing the equipment's floor space, making it particularly suitable for compact production lines with multiple units arranged in parallel.

[0034] The placement structure uses a pull-out storage frame and sliding groove to replace the stacked placement box for comparison documents. The middle layer of materials can be directly pulled out and accessed without disassembling layer by layer, improving operational efficiency. The limiting component consisting of a limiting baffle and a stop block can prevent the storage frame from sliding out during the drying process, taking into account both safety and convenience. Attached Figure Description

[0035] Figure 1 is a schematic diagram of the main structure of a vacuum dryer for freeze-drying production provided by this utility model;

[0036] Figure 2 is a second-view schematic diagram of the main body of a vacuum dryer for freeze-drying production provided by this utility model;

[0037] Figure 3 is a first-view schematic diagram of the unfolded sliding support storage assembly of a vacuum dryer for freeze-drying production provided by this utility model.

[0038] Figure 4 is a second-view schematic diagram of the unfolded sliding support storage assembly of a vacuum dryer for freeze-drying production provided by this utility model.

[0039] Figure 5 is a cross-sectional schematic diagram of a vacuum dryer for freeze-drying production provided by this utility model;

[0040] Figure 6 is a schematic diagram of the storage frame being pulled out of a vacuum dryer for freeze-drying production provided by this utility model.

[0041] Legend: 10. Dryer body; 20. Sliding support storage assembly; 201. Side plate; 202. Movable base; 203. First moving wheel; 204. Second moving wheel; 205. Sealing block; 206. Storage frame; 207. Sliding groove; 208. Storage frame; 209. Limiting baffle; 210. Abutting block; 211. Insertion groove; 30. Sliding cavity; 40. Sealing cavity; 50. Drive unit; 501. Mounting seat; 502. Lead screw; 503. Drive motor; 504. Slider body; 505. Connecting seat; 506. Linear optical axis. Detailed Implementation

[0042] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0043] To facilitate understanding of this utility model, a more comprehensive description of this utility model will be provided below with reference to relevant embodiments, and several embodiments of this utility model will be given. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of this utility model more thorough and complete.

[0044] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0045] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0046] Example

[0047] As shown in Figures 1 to 6, this utility model provides a technical solution: a vacuum dryer for freeze-drying production, including a dryer body 10, the dryer body 10 having an inner cavity for placing products, and two sliding cavities 30 opened at the bottom of the inner cavity;

[0048] The sealing cavity 40 is located on the right side wall of the dryer body 10;

[0049] Drive unit 50 is integrated and mounted on dryer body 10;

[0050] The sliding support storage assembly 20 is disposed inside the dryer body 10. It includes a side plate 201, a movable support structure, and a placement structure. The side plate 201 is rectangular and fits and seals against the side of the dryer body 10. The two side walls of the side plate 201 are connected to the drive unit 50. When the drive unit 50 drives the side plate 201 to move horizontally, it will simultaneously drive the movable support structure and the placement structure to extend. The movable support structure is disposed on the inner wall of the side plate 201 to provide auxiliary support when the side plate 201 extends. The placement structure is installed on the top of the movable support structure and is used to store materials.

[0051] When the drive unit 50 is working, it drives the side plate 201 to move horizontally inside the dryer body 10 through the connection with the two side walls of the side plate 201. When the side plate 201 moves horizontally, the movable support structure installed on its inner wall moves accordingly, providing auxiliary support for the extension of the side plate 201, ensuring that the side plate 201 drives the placement structure to smoothly extend or retract into the inner cavity of the dryer body 10, thereby realizing the adjustment of the material storage position and facilitating the storage and retrieval of materials.

[0052] The sliding support storage assembly 20 also includes:

[0053] The sealing block 205 is inserted into the sealing cavity 40 and forms a seal by pressing against the inner wall of the sealing cavity 40.

[0054] When the sliding support storage assembly 20 moves to a specific position under the drive of the drive unit 50, the sealing block 205 will be inserted into the sealing cavity 40. At this time, the sealing block 205 and the inner wall of the sealing cavity 40 are pressed against each other, filling the gap between them, thereby preventing external gas from entering the inner cavity of the dryer body 10, maintaining the vacuum environment of the inner cavity, and ensuring the smooth progress of the drying process.

[0055] The movable support structure includes:

[0056] The movable base 202 is fixedly installed on the inner side wall of the side plate 201.

[0057] Two first movable wheels 203 are fixedly installed at the bottom of the side plate 201 for sliding in contact with the ground to achieve auxiliary support sliding;

[0058] Two second movable wheels 204 are fixedly installed at the bottom of the movable base 202 and are used to connect with the two sliding cavities 30 to achieve auxiliary sliding and limiting.

[0059] When the side plate 201 moves, the two first moving wheels 203 at the bottom contact the ground, and the side plate 201 slides on the ground through rolling friction, providing initial auxiliary support and sliding ability for the movement of the side plate 201. At the same time, the two second moving wheels 204 fixed to the bottom of the moving base 202 are embedded in the sliding cavity 30 at the bottom of the dryer body. During the movement of the side plate 201, the second moving wheels 204 slide along the sliding cavity 30, which not only further assists in supporting the side plate 201, but also ensures the accuracy of the movement trajectory of the side plate 201 and avoids deviation through the limiting effect of the sliding cavity 30 on the second moving wheels 204.

[0060] The placement structure includes:

[0061] The storage frame 206 has a placement cavity inside. Several slots are opened through the top and side walls of the storage frame 206 to connect the placement cavity to the external space.

[0062] Several sliding grooves 207 are formed on both sides of the inside of the storage frame 206, and are staggered with several grooves.

[0063] Several storage frames 208 are provided, and sliders are fixedly installed on both sides of the storage frames 208 to slide the storage frames 208 in the sliding groove 207 to realize extraction and retrieval.

[0064] A limiting component is provided at the top of the storage frame 206 to limit the storage frames 208 during drying and prevent them from accidentally sliding out.

[0065] The insertion slot 211 is provided on the front of the storage frame 206 and is used to fix and remove the limiting component by means of the insertion rod.

[0066] The placement cavity inside the storage frame 206 is used to store materials. The grooves on its top and side walls connect the placement cavity to the outside, which is conducive to the exchange of heat and gas during the drying process. The sliders on both sides of the storage frame 208 are embedded in the sliding grooves 207. The operator can pull out or push the storage frame 208 from the storage frame 206 by sliding the sliders in the sliding grooves 207 to realize the storage and retrieval of materials. When drying is required, the limiting component limits the storage frame 208 to prevent it from accidentally sliding out due to vibration or other reasons during the drying process. By inserting or pulling out the plug rod in the insertion groove 211, the limiting component can be fixed or disassembled, which is convenient for the installation and maintenance of the limiting component.

[0067] The limit components include:

[0068] The limiting baffle 209 has an opening for connecting the insertion rod. The limiting baffle 209 is rotatably installed in the mounting groove on the front of the storage frame 206 via a rotating rod and a bearing.

[0069] The abutment block 210 is fixedly installed on the front of the storage frame 206 and near the right side. The abutment block 210 is used to support the limiting baffle 209 when the limiting baffle is released.

[0070] The limiting baffle 209 is rotatably mounted in the mounting groove on the front of the storage frame 206 via a rotating rod and bearing. When the storage frame 208 needs to be limited, the limiting baffle 209 is rotated to cover the opening on the front of the storage frame 206. Then, the insert rod is inserted into the opening on the limiting baffle 209 and connected to the insertion slot 211, thereby fixing the limiting baffle 209 and making it block the storage frame 208 to prevent it from sliding out. When the limitation needs to be released, the insert rod is pulled out and the limiting baffle 209 is rotated to the right until the limiting baffle 209 contacts the abutment block 210. The abutment block 210 supports the limiting baffle 209 and keeps it in the released position, facilitating the removal of the storage frame 208.

[0071] Drive unit 50 includes:

[0072] Two mounting bases 501 are fixedly installed on the two side walls of the dryer body 10, and each has a mounting cavity on its top.

[0073] A lead screw 502 is installed in the mounting cavity of one of the mounting bases 501, and a drive motor 503 is provided at the input end. The lead screw 502 is driven to rotate by the drive motor 503.

[0074] A linear optical axis 506 is disposed in the mounting cavity of another mounting base 501 for supporting sliding.

[0075] Two slider bodies 504 are respectively mounted on the lead screw 502 and the linear optical axis 506;

[0076] Two connecting seats 505, one end of which is fixed to the slider body 504 and the other end of which is fixed to the side wall of the sliding support storage assembly 20, are used to drive the sliding support storage assembly 20 to extend or retract.

[0077] When the drive motor 503 is working, it drives the lead screw 502 to rotate in the mounting cavity of the mounting base 501. The slider body 504 mounted on the lead screw 502 moves along the axial direction of the lead screw 502 as the lead screw 502 rotates. At the same time, the slider body 504 mounted on the linear optical axis 506 slides along the linear optical axis 506, providing stable guidance for the movement of the sliding support storage assembly 20. The two slider bodies 504 are fixedly connected to the side wall of the sliding support storage assembly 20 through the connecting seat 505, thereby driving the sliding support storage assembly 20 to perform horizontal extension or retraction movements inside the dryer body 10, realizing precise control of the position of the sliding support storage assembly 20.

[0078] Working principle

[0079] 1. Overall Workflow

[0080] When the material freeze-drying operation is required, the drive motor 503 of the drive unit 50 starts, driving the lead screw 502 to rotate, causing the slider body 504 mounted on the lead screw 502 and the linear optical axis 506 to move axially. The slider body 504 drives the side plate 201 of the sliding support storage assembly 20 to move horizontally through the connecting seat 505, so that the entire storage assembly extends out of the inner cavity of the dryer body 10. At this time, the first moving wheel 203 slides in contact with the ground, and the second moving wheel 204 rolls along the sliding cavity 30, jointly assisting in the smooth movement of the storage assembly.

[0081] 2. Material loading and limiting

[0082] The staff places the materials into the storage frame 208. The storage frame 208 can be pulled out or pushed into the storage frame 206 through the cooperation of the sliders on both sides and the sliding groove 207, which facilitates the storage and retrieval of materials. After loading, the limiting baffle 209 is rotated to cover the front opening of the storage frame 206, and the limiting baffle 209 is fixed by inserting the plug rod into the plug slot 211 to prevent the storage frame 208 from accidentally sliding out during the drying process.

[0083] 3. Formation of a sealed and vacuum environment

[0084] The drive unit 50 operates in reverse, causing the sliding support storage assembly 20 to retract into the inner cavity of the dryer body 10. When the side plate 201 is in contact with the side of the dryer body 10, the sealing block 205 is inserted into the sealing cavity 40 and squeezed against the inner wall to form a sealing structure, preventing external gas from entering. At this time, the inner cavity of the dryer body 10 is evacuated to a vacuum environment by a vacuum pump and other equipment, and the material is freeze-dried in the placement cavity of the storage frame 206.

[0085] 4. Remove the dried material.

[0086] After the drying process is completed, the drive unit 50 drives the sliding support storage assembly 20 to extend again. The operator pulls out the insertion rod, rotates the limit baffle 209 to the contact block 210, releases the limit on the storage frame 208, and then pulls the storage frame 208 out of the sliding groove 207 to take out the dried material.

[0087] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A vacuum dryer for freeze-drying production, characterized in that, include: The dryer body (10) has an internal cavity for placing products, and two sliding cavities (30) are provided at the bottom of the internal cavity; a sealing cavity (40) is provided on the right side wall of the dryer body (10); a drive unit (50) is integrated and installed on the dryer body (10); and a sliding support storage assembly (20) is provided inside the dryer body (10), which includes a side plate (201) and a movable support structure. The placement structure has a rectangular side plate (201) that fits and seals against the side of the dryer body (10). The two side walls of the side plate (201) are connected to the drive unit (50). When the drive unit (50) drives the side plate (201) to move horizontally, it will simultaneously drive the movable support structure and the placement structure to extend. The movable support structure is located on the inner wall of the side plate (201) and is used to provide auxiliary support when the side plate (201) extends. The placement structure is installed on the top of the movable support structure and is used to store materials.

2. The vacuum dryer for freeze-drying production according to claim 1, characterized in that, The sliding support storage assembly (20) further includes a sealing block (205), which is inserted into the sealing cavity (40) and forms a seal by pressing against the inner wall of the sealing cavity (40).

3. A vacuum dryer for freeze-drying production according to claim 2, characterized in that, The movable support structure includes: a movable base (202), which is fixedly disposed on the inner side wall of the side plate (201); two first movable wheels (203), which are fixedly disposed on the bottom of the side plate (201) for sliding in contact with the ground to achieve auxiliary support sliding; and two second movable wheels (204), which are fixedly disposed on the bottom of the movable base (202) for connecting with the two sliding cavities (30) to achieve auxiliary sliding and limiting.

4. A vacuum dryer for freeze-drying production according to claim 3, characterized in that, The placement structure includes: a storage frame (206) having a placement cavity inside, and a plurality of slots extending through the top and side walls of the storage frame (206) to connect the placement cavity to the external space; a plurality of sliding grooves (207) located on the side walls inside the storage frame (206) and staggered with the slots; and a plurality of storage frames (208). Slider blocks are fixedly installed on both sides of the storage frame (208) to slide the storage frame (208) in the sliding groove (207) for extraction and retrieval; a limiting component is installed on the top of the storage frame (206) to limit several storage frames (208) during drying to prevent accidental slippage; a plug-in groove (211) is opened on the front of the storage frame (206) for fixing and disassembling the limiting component by inserting a rod.

5. A vacuum dryer for freeze-drying production according to claim 4, characterized in that, The limiting component includes: a limiting baffle (209), which has an opening for connecting the insertion rod, and the limiting baffle (209) is rotatably mounted in the mounting groove on the front of the storage frame (206) via a rotating rod and a bearing; and an abutment block (210), which is fixedly mounted on the front of the storage frame (206) and near the right side, and is used to support the limiting baffle (209) when the limiting baffle (209) is released from the limiting position.

6. A vacuum dryer for freeze-drying production according to claim 5, characterized in that, The drive unit (50) includes: two mounting bases (501), which are fixedly mounted on the two side walls of the dryer body (10), and each has a mounting cavity at the top; a lead screw (502), which is disposed in the mounting cavity of one of the mounting bases (501), and has a drive motor (503) at its input end, which drives the lead screw (502) to rotate; a linear optical axis (506), which is disposed in the mounting cavity of the other mounting base (501) for supporting sliding; two slider bodies (504), which are respectively mounted on the lead screw (502) and the linear optical axis (506); and two connecting seats (505), one end of which is fixed on the slider body (504) and the other end of which is fixed on the side wall of the sliding support storage assembly (20), for driving the sliding support storage assembly (20) to extend or retract.

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