Freeze dryer and control method

Abstract

The invention provides a freeze dryer and a control method thereof, and relates to the technical field of medical equipment.The freeze dryer comprises a freeze dryer body, a feeding mechanism and a turnover platform, the turnover platform is installed between the freeze dryer body and the feeding mechanism, and the turnover platform comprises a support, a first turnover plate and a second turnover plate; the first turning plate and the second turning plate are movably installed on the support, a transition platform is formed when the first turning plate and the second turning plate rotate to be horizontal, one end of the transition platform is matched with the freeze dryer body, and the feeding mechanism pushes materials into the freeze dryer body from the transition platform. Through the split type design of the turnover platform, dynamic adjustment of the form of the platform is achieved, the equipment layout is optimized while the transmission precision is guaranteed, and the problems that a fixed platform is large in size and poor in adjustment capacity are effectively solved.

Description

Technical Field

[0001] This invention relates to the field of medical equipment technology, and in particular to a freeze dryer and its control method. Background Technology

[0002] In the field of automated production, especially in the freeze-drying process of special materials, material transfer and docking has always been a technical challenge. In existing technologies, the transition platform typically adopts a fixed structure, which has significant limitations: First, the fixed platform is bulky, occupying a large amount of production space; second, it cannot be flexibly adjusted according to actual production needs, resulting in low material transfer efficiency; third, the fixed platform is difficult to precisely dock with the freeze dryer body, easily causing jamming or falling during material transfer. Particularly when processing special materials, this fixed platform structure cannot meet the transfer requirements of materials of different specifications, severely restricting the improvement of production efficiency. Furthermore, existing technologies lack intelligent control of the freeze dryer's workflow, failing to achieve automated connection of processes such as feeding, processing, discharging, and cleaning.

[0003] Therefore, a freeze dryer and its control method are proposed. Summary of the Invention

[0004] The purpose of this invention is to provide a freeze dryer and a control method, which have the advantages of saving space, flexibly adjusting the position of the transition platform, and accurately connecting the freeze dryer body and the feeding mechanism to improve material transfer efficiency.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: According to an embodiment of the present invention, a freeze dryer includes: a freeze dryer body, a feeding mechanism, and a tumbler platform. The tumbler platform is installed between the freeze dryer body and the feeding mechanism. The tumbler platform is provided with a movable transition platform. When the transition platform is horizontal, one end of the transition platform is connected to the freeze dryer body, and the other end of the transition platform is connected to the feeding mechanism. The feeding mechanism pushes the material from the transition platform into the freeze dryer body.

[0006] According to the freeze dryer of the present invention, the split design of the flip-up platform enables dynamic adjustment of the platform shape, optimizes the equipment layout while ensuring transmission accuracy, and effectively solves the problems of large size and poor adjustment capability of the fixed platform.

[0007] In addition, the freeze dryer according to the above embodiments of this application may also have the following additional technical features: In some embodiments of the present invention, the flip-up platform includes a support, a first flip plate and a second flip plate, the first flip plate and the second flip plate are movably mounted on the support, and when the first flip plate and the second flip plate are rotated to a horizontal position, they form a transition platform. The end of the first flip plate away from the second flip plate is connected to the freeze dryer body, and the end of the second flip plate away from the first flip plate is connected to the feeding mechanism.

[0008] In some embodiments of the present invention, the freeze dryer body includes a main body, a movable plate and a feed door. The main body is provided with a feed inlet. The feed door seals the feed inlet and opens and closes the feed inlet. The movable plate is movably installed in the main body in a third direction. The end of the movable plate near the feed inlet is provided with a fourth snap-fit ​​part. The fourth snap-fit ​​part cooperates with the first flip plate.

[0009] In some embodiments of the present invention, a conveying mechanism is also included, which is installed between the tiltable platform and the feeding mechanism. The conveying mechanism conveys the material to be processed to the position of the feeding mechanism and conveys the processed material to an external device.

[0010] The present invention also provides a control method, the control method comprising the above-mentioned freeze dryer, the control method comprising: S1. The freeze dryer executes the feeding mode, opens the feeding door, rotates the flip-up platform to form the transition platform, and the conveying mechanism conveys multiple materials to the feeding mechanism position. The feeding mechanism pushes the materials from the conveying mechanism through the transition platform to the moving plate. S2. The freeze dryer operates in a working mode to process the material on the moving plate; S3. The freeze dryer executes the discharge mode, opens the feed door, rotates the flip-top platform to form the transition platform, and the freeze dryer body pushes out the processed material on the moving plate. The material is then pushed onto the conveying assembly via the transition platform. S4; The freeze dryer executes a cleaning mode to clean the inside of the freeze dryer in preparation for processing the next batch of material.

[0011] Compared with the prior art, the present invention has at least the following beneficial effects: The flip-up platform forms a transition platform in the horizontal state to facilitate material transfer, while saving space in the vertical state. It also features a snap-fit ​​mechanism for precise positioning, offering advantages such as space saving, flexible adjustment of the transition platform position, and precise docking between the freeze dryer body and the feeding mechanism to improve material transfer efficiency.

[0012] In some embodiments of the present invention, the step of the freeze dryer performing the feeding mode includes: S11. Open the feed door; S12. The first power component drives the first flipping plate to rotate to a horizontal state, the second power component drives the second flipping plate to a horizontal state, and the second locking part cooperates with the third locking part to make the first flipping plate and the second flipping plate form the transition platform. S13. The second power component drives the first flip plate to move until the first locking part engages with the fourth locking part. S14. The feeding mechanism pushes the material onto the moving plate that cooperates with the first flipping plate; S15. The second power component drives the first flipping plate to move until the first locking part and the fourth locking part are disconnected, and the moving plate is replaced to cooperate with the first flipping plate until all the moving plates in the freeze dryer are loaded with the material. S16. The second power component drives the second flip plate to be perpendicular to the horizontal plane, the second power component drives the first flip plate to the initial position, the first power component drives the first flip plate to be perpendicular to the horizontal plane, and closes the feed door.

[0013] In some embodiments of the present invention, the step of the freeze dryer performing the discharge mode includes: S31. Open the feed door; S32. The first power component drives the first flipping plate to rotate to a horizontal state, the second power component drives the second flipping plate to a horizontal state, and the second locking part cooperates with the third locking part to make the first flipping plate and the second flipping plate form the transition platform. S33, The second power component drives the first flip plate to move until the first locking part engages with the fourth locking part; S34. The freeze dryer pushes the material onto the conveying device; S35. The second power component drives the first flipping plate to move until the first locking part and the fourth locking part are disconnected. The moving plate is replaced and engaged with the first flipping plate until all the material in the freeze dryer is discharged. S36. The second power component drives the second flip plate to be perpendicular to the horizontal plane, the second power component drives the first flip plate to the initial position, the first power component drives the first flip plate to be perpendicular to the horizontal plane, and closes the feed gate.

[0014] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the freeze dryer structure according to an embodiment of the present invention. Figure 1 ; Figure 2 This is a schematic diagram of a flip-up platform according to an embodiment of the present invention. Figure 1 ; Figure 3 This is a schematic diagram of a flip-up platform according to an embodiment of the present invention. Figure 2 ; Figure 4 This is a schematic diagram of a flip-up platform according to an embodiment of the present invention. Figure 3 ; Figure 5 This is a schematic diagram of a flip-up platform according to an embodiment of the present invention. Figure 4 ; Figure 6 The workflow of this invention embodiment Figure 1 ; Figure 7 The workflow of this invention embodiment Figure 2 ; Figure 8 The workflow of this invention embodiment Figure 3 .

[0016] Figure Labels 1. Freeze dryer body; 2. Feeding mechanism; 3. Tilting platform; 4. Support frame; 5. First flip plate; 6. Second flip plate; 7. First locking part; 8. Second locking part; 9. First power component; 10. First power element; 11. Second power element; 12. Second power component; 13. First limiting protrusion; 14. Second limiting protrusion; 16. Moving plate; 17. Feed gate; 18. Conveying mechanism; 19. Third locking part; 20. First guide part; 21. Second guide part. Detailed Implementation

[0017] The freeze dryer and control method of the present invention will now be described in more detail with reference to the accompanying drawings, which illustrate preferred embodiments of the invention. It should be understood that those skilled in the art can modify the invention described herein while still achieving its advantageous effects. Therefore, the following description should be understood as being of general knowledge to those skilled in the art and is not intended to limit the invention.

[0018] In the description of this specification, terms such as "one embodiment" or "some embodiments" mean that one or more embodiments of this specification include a particular feature, structure, or characteristic described in connection with that embodiment. Therefore, the phrases "in one embodiment," "in some embodiments," "in other embodiments," "in still other embodiments," etc., appearing in different parts of this specification do not necessarily refer to the same embodiment, but rather mean "one or more, but not all, embodiments," unless otherwise specifically emphasized.

[0019] The embodiments of this application are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0020] In existing technologies, freeze-drying production lines often use fixed transition platforms for material transfer. These platforms occupy a large amount of vertical space, resulting in a bulky overall production line layout. In space-constrained production workshops, fixed platforms not only hinder equipment movement and maintenance but also force an increase in the distance between adjacent processes. When the freeze dryer and the feeding mechanism need to work together, the rigid connection structure formed by the fixed transition platform restricts equipment layout optimization, resulting in a persistently large floor area for the production line.

[0021] To address the aforementioned issues, the inventors observed that the inability of traditional transition platforms to dynamically adjust their form is the core reason for their low space utilization. Analysis of the material transport process revealed that the platform only needs to bear loads during the feeding phase, while its form can be transformed at other times. Therefore, the inventors proposed disassembling the integral platform into movable flip-plate components, reducing space occupation during non-working states through folding and storage. Further research into the interaction between the flip-plate movement trajectory and the freeze dryer and feeding mechanism led to the final determination of a technical approach using dual flip-plates to collaboratively rotate and form a dynamic transition surface. Therefore, this application proposes a freeze dryer, and the freeze dryer according to an embodiment of the present invention is described below with reference to the accompanying drawings.

[0022] A freeze dryer according to an embodiment of the present invention includes: Figure 1 As shown, the freeze dryer body 1, the feeding mechanism 2, and the tiltable platform 3 are installed between the freeze dryer body 1 and the feeding mechanism 2. The tiltable platform 3 includes a support 4, a first flip plate 5, and a second flip plate 6. The first flip plate 5 and the second flip plate 6 are movably installed on the support 4, and when the first flip plate 5 and the second flip plate 6 are rotated to a horizontal position, they form a transition platform. One end of the transition platform cooperates with the freeze dryer body 1, and the feeding mechanism 2 pushes the material from the transition platform into the freeze dryer body 1.

[0023] The flip-up platform 3 refers to a device that achieves form transformation through a mechanical structure, specifically a hinged split-type flip panel, whose folded state reduces vertical space occupation. The support 4 refers to a rigid frame supporting the flip panel assembly, specifically a metal frame with sliding rails, providing guidance for the flip panel's movement. The first flip panel 5 and the second flip panel 6 are load-bearing components with rotational functions, specifically metal plates with rotating shafts, forming a continuous load-bearing surface when horizontally unfolded. The transition platform refers to a material transfer channel formed by the flip panel assembly, specifically formed by splicing the flip panel planes to ensure seamless connection with the freeze dryer's inlet.

[0024] Specifically, when material conveying is required, the first flap 5 moves along the slide rail of the support 4 to a predetermined position and then rotates and unfolds around the pivot. Simultaneously, the second flap 6 adjusts its angle, and the two flaps horizontally connect to form a rigid transition surface. The feeding mechanism 2 pushes the material along the transition plane into the freeze dryer. At this time, the transition platform remains unfolded to ensure conveying stability. After feeding is complete, the first flap 5 and the second flap 6 retract along the slide rail and fold upwards, reducing the overall height of the platform. The limiting device on the support 4 ensures that the flaps remain stably folded after being folded, preventing interference with surrounding equipment.

[0025] Through the above technical solution, this application effectively solves the problem of excessive space occupied by the transition platform, enabling the freeze dryer production line to achieve a compact layout while ensuring material transfer functionality. The adjustable characteristics of the flip-plate assembly adapt to different equipment spacing requirements, avoiding production line modification difficulties caused by the size limitations of the fixed platform. The dynamic transition platform automatically folds after operation, leaving ample space for equipment maintenance and workshop aisles.

[0026] In some embodiments of the present invention, such as Figures 3-5 As shown, the first flip plate 5 is provided with a first locking part 7 and a second locking part 8. The first locking part 7 and the second locking part 8 are provided at opposite ends of the first flip plate 5. The first locking part 7 is engaged with the freeze dryer body 1. The second flip plate 6 is provided with a third locking part 19. The third locking part 19 is provided at one edge of the second flip plate 6 near the first flip plate 5. The first locking part 7 and the second locking part 8 are engaged with each other.

[0027] The first locking part 7 refers to a mechanical connection structure located at the end of the first flip plate 5, which can be implemented using a protrusion or groove with barbs, for forming a rigid connection with the corresponding structure on the freeze dryer body 1. The second locking part 8 refers to a positioning structure located at the other end of the first flip plate 5, which can be implemented using a row of slots, for interlocking with the third locking part 19 of the second flip plate 6. The third locking part 19 refers to a mating structure located on the edge of the second flip plate 6, which can be implemented using teeth matching the number of slots, for positioning between the two flip plates by the teeth engaging with the slots.

[0028] Specifically, when the first flap 5 and the freeze dryer body 1 are connected via the first locking part 7, its other end is linked with the third locking part 19 of the second flap 6 via the second locking part 8. During the unfolding of the transition platform, the first flap 5 and the second flap 6 rotate synchronously to a horizontal state. At this time, the slot of the second locking part 8 engages with the teeth of the third locking part 19 one by one, forming continuous locking points distributed along the edge. This multi-point locking method forms a dual positioning mechanism after the platform is unfolded, fixing the connection on the side of the freeze dryer body 1 through the first locking part 7, and limiting the relative displacement between the two flaps through the cooperation of the slot and the teeth.

[0029] Through the above technical solution, this application achieves a multi-level positioning function for the transition platform during the flipping and unfolding process. The direct snap-fit ​​between the first snap-fit ​​part 7 and the freeze dryer body 1 ensures the connection strength on the platform body side, while the edge engagement between the second snap-fit ​​part 8 and the third snap-fit ​​part 19 eliminates the gap between the two flip plates. This split snap-fit ​​design ensures the flexibility of platform flipping while improving docking accuracy through a mechanical interlocking structure, avoiding connection loosening problems caused by vibration or load changes.

[0030] In some embodiments of the present invention, such as Figures 3-5 As shown, the second latching part 8 is configured as a plurality of latching slots (not marked) arranged along the edge of the first flip plate 5, and the third latching part 19 is configured as a plurality of latching teeth (not marked) arranged along the edge of the second flip plate 6, with the latching slots and the latching teeth corresponding to each other.

[0031] Specifically, when the first flap 5 and the second flap 6 rotate to a horizontal position, multiple locking teeth on the edge of the second flap 6 simultaneously engage with multiple locking slots on the edge of the first flap 5. Through the meshing contact of the locking teeth and the locking slots, a distributed connection structure is formed between the two flaps, avoiding deformation caused by single-point force. The linear arrangement of the locking slots allows adjustment of the relative position of the two flaps according to the distance between the freeze dryer body 1 and the feeding mechanism 2, for example, by changing the position of the locking teeth inserted into the locking slots to achieve fine-tuning of the distance. In the folded storage state, the guiding action of the locking teeth along the locking slots ensures that the two flaps move in parallel, reducing the space occupied after folding.

[0032] It should be noted that when the tooth engages with the slot, a reserved distance is left. That is, when the tooth engages with the slot, the tip of the tooth will not stop at the bottom of the slot, thus leaving a small distance so that the first flap 5 can move linearly after engaging with the second flap 6.

[0033] Through the above technical solution, this application solves the problem of excessive equipment size caused by fixed transition platforms. An adjustable distributed snap-fit ​​structure enables flexible adaptation of the flap spacing, while improving the stability of the flap connection and avoiding the risk of single-point snap-fit ​​failure. The linear arrangement of the slots and teeth further ensures that the two flaps remain compact when folded and stored, reducing the overall space occupied by the equipment.

[0034] In some embodiments of the present invention, such as Figure 3 , Figure 4 As shown, it also includes a first power component 9, which is mounted on the bracket 4 and connected to the first flap 5. The first power component 9 drives the first flap 5 to move on the bracket 4.

[0035] The first power unit 10 refers to the actuator that drives rotary motion, which can be implemented using an electric push rod or a hydraulic cylinder. Its output end is connected to the rotating shaft of the first flap 5, and the flap angle is changed through telescopic motion. The second power unit 11 refers to the actuator that drives linear displacement, which can be implemented using a servo motor and a ball screw. Its guide rail is arranged parallel to the length direction of the bracket 4, and the horizontal position of the flap is adjusted through reciprocating motion. These two power units independently control motion in different dimensions. When solving the problem of equipment size, motion decoupling avoids structural redundancy caused by compound drive.

[0036] Specifically, when docking with the freeze dryer body 1, the rotational motion is driven by the first power component 10, causing the first flap 5 to rotate around the axis to a horizontal position, forming a transition platform. The linear displacement is driven by the second power component 11, causing the entire first flap 5 to move along the guide rail to a position precisely aligned with the freeze dryer body 1. These two movements are executed independently in a time-sharing manner. After the angle adjustment is completed, there is no need to reserve working space for the rotational drive mechanism, thereby reducing the overall space occupied by the transition platform.

[0037] Through the above technical solution, this application realizes multi-degree-of-freedom motion control of the transition platform, effectively reducing the invalid space between the freeze dryer body 1 and the feeding mechanism 2 while ensuring docking accuracy. It solves the problem of bloated production line layout caused by the excessive size of the drive system in traditional equipment, and improves the response speed and stability of platform position calibration.

[0038] In some embodiments of the present invention, such as Figure 3 , Figure 4 As shown, the first power assembly 9 includes a first power component 10 and a second power component 11. The first power component 10 drives the first flap 5 to rotate on the bracket 4, and the second power component 11 drives the first flap 5 to move along a direction on the bracket 4.

[0039] The second power component 12 refers to a power actuator independent of the first flap 5 drive system. Specifically, it can be implemented using a combination of a servo motor and a reducer, and is connected to the rotating shaft of the second flap 6 via a coupling. The bracket 4 refers to the structural frame that supports the movement of the flap, and can be assembled from welded steel frames or aluminum alloy profiles. It has internal guide rail grooves to constrain the movement trajectory of the second flap 6. The second flap 6 is a movable component that cooperates with the first flap 5 to form a transition platform. It can be made of stainless steel or engineering plastic plates, and an angle sensor is installed at the end of its rotating shaft to detect the rotation position.

[0040] Specifically, when a transition platform is needed, the second power component 12 drives the second flip plate 6 to rotate around the pivot to a horizontal position, forming a continuous plane together with the first flip plate 5. In the non-working state, the second power component 12 drives the second flip plate 6 to flip and fold upwards, so that the two flip plates are stacked vertically. The second power component 12 independently controls the rotation angle of the second flip plate 6, ensuring precise alignment with the first flip plate 5 when unfolded and avoiding the working area of ​​adjacent equipment when folded. This driving method allows the second flip plate 6 to independently adjust its storage angle according to the production line layout requirements, without relying on the movement trajectory of the first flip plate 5.

[0041] Through the above technical solution, this application enables the transition platform to be quickly folded after material conveying, reducing the static space occupied by the equipment in the production line. The independent rotation control of the second flip plate 6 optimizes the flexibility of equipment layout and avoids redundancy in production line arrangement caused by the size limitations of the fixed platform. The folded transition platform can reduce the safety distance requirements between adjacent equipment and improve the space utilization rate of the production line.

[0042] In some embodiments of the present invention, such as Figure 5 As shown, it also includes a second power component 12, which is mounted on the bracket 4 and connected to the second flap 6. The second power component 12 drives the second flap 6 to rotate on the bracket 4.

[0043] The first limiting protrusion 13 refers to the protruding structure fixedly installed on both sides of the first flip plate 5. Specifically, it can be implemented by a metal baffle extending vertically upward, which is used to prevent the material from shifting laterally during the pushing process.

[0044] The second limiting protrusion 14 refers to the protruding structure that is movably set on both sides of the edge of the second flap 6. Specifically, it can be implemented by a hinged plastic baffle. Its installation position can be adjusted along the length of the second flap 6 to adapt to the longitudinal limiting requirements of materials of different sizes.

[0045] Specifically, when the first flap 5 and the second flap 6 rotate to a horizontal position to form a transition platform, the first limiting protrusion 13 and the second limiting protrusion 14 are located on the two side edges of the transition platform, respectively. During the process of the feeding mechanism 2 pushing the material, the first limiting protrusion 13 forms a fixed lateral constraint, and the second limiting protrusion 14 forms a dynamic limit that can adapt to the width of the material through position adjustment. The two protrusions work together to form a continuous guide channel, so that the material maintains a straight trajectory during the pushing process. Since the limiting protrusions are directly integrated into the flap body, the protrusions are synchronously stored with the flap when the transition platform flips, without occupying additional space.

[0046] Compared to existing technologies, current transition platforms lack a limiting structure, making it easy for materials to slip off, while independently installed limiting devices increase the size of the equipment. This invention integrates a limiting protrusion into the flip plate body, forming a constraint channel during the material pushing stage and maintaining structural compactness during the platform flipping stage, thus resolving the contradiction between limiting function and space occupation.

[0047] Through the above technical solution, this application achieves precise guidance of the material during the transition platform push process, avoiding the problem of material jamming or slippage caused by deviation. At the same time, the integrated design of the limiting structure and the flip plate makes the overall layout of the freeze dryer more compact, and there is no need to add an independent module for the limiting function.

[0048] In some embodiments of the present invention, such as Figures 2-4 As shown, the first flap 5 is provided with a first limiting protrusion 13 at both ends, and the second flap 6 is provided with a second limiting protrusion 14 at both ends. The first limiting protrusion 13 and the second limiting protrusion 14 limit the material passing through the transition platform.

[0049] The second limiting protrusion 14 being movably mounted on the second flap 6 means that the second limiting protrusion 14 is connected to the second flap 6 via a sliding track or guide groove, enabling it to move along a preset direction and thus achieve dynamic avoidance when the transition platform changes shape.

[0050] The first guide part and the second guide part are configured to cooperate to form a motion transmission relationship through inclined surface contact or cam trajectory, so as to convert the horizontal movement of the first flap 5 into the vertical or inclined displacement of the second limiting protrusion 14. Specifically, this can be achieved by using an inclined slide groove and a raised slider.

[0051] Specifically, when the first flap 5 moves horizontally towards the second flap 6, the contact surfaces between the first guide portion and the second guide portion slide relative to each other. Under the action of the guide portion, the second limiting protrusion 14 moves along the sliding track on the second flap 6, thereby changing its position relative to the first limiting protrusion 13. During this process, the second limiting protrusion 14 is forcibly driven to perform an avoidance action, preventing interference with the movement path of the first flap 5. After the transition platform completes docking, the first flap 5 resets, and the second limiting protrusion 14 returns to its initial position under the reverse movement of the guide portion, restoring its limiting function for the material.

[0052] Through the above technical solution, this application solves the problem that the material limiting structure cannot dynamically avoid obstacles when the transition platform moves. While ensuring the limiting accuracy during the material pushing process, it avoids mechanical interference between the limiting protrusion and the platform moving path, and eliminates the need to add an independent drive device, thus reducing equipment complexity and maintenance costs.

[0053] In some embodiments of the present invention, such as Figure 3 , Figure 5 As shown, the second limiting protrusion 14 is movably mounted on the second flap 6. The first limiting protrusion 13 has a first guide portion 20 formed at one end near the second flap 6, and the second limiting protrusion 14 has a second guide portion 21 formed at one end near the first flap 5. The first guide portion 20 and the second guide portion 21 are configured to cooperate with each other. The first flap 5 moves along the direction near the second flap 6, driving the second guide portion 21 to move along the first guide portion 20.

[0054] The fourth snap-fit ​​part refers to the connection structure set at the end of the moving plate 16. Specifically, it can be implemented by using a convex buckle or a dovetail groove structure. By forming a mechanical interlock with the first snap-fit ​​part 7 of the first flip plate 5, the positional accuracy of the platform docking is ensured.

[0055] Specifically, when the flip-up platform 3 rotates to a horizontal position to form a transition platform, the moving plate 16 moves towards the feed inlet along a third direction, causing the fourth locking part to dock with the first locking part 7 of the first flip plate 5. During this process, the feed door 17 remains open, and the moving plate 16 and the transition platform form a continuous conveying channel. The material enters the freeze dryer body 1 through this channel via the feeding mechanism 2. After docking, the feed door 17 closes to seal the feed inlet, and the moving plate 16 retracts into the freeze dryer body 1 to release the docking area space. The interlocking structure between the fourth locking part and the first locking part 7 provides mechanical constraint during docking, preventing the platform from shifting due to vibration. At the same time, the directional movement path design of the moving plate 16 ensures that the docking operation only needs to be performed along a single axis, reducing the lateral space occupied.

[0056] Through the above technical solution, this application achieves dual sealing protection when the freeze dryer body 1 and the flip-up platform 3 are docked. The snap-fit ​​structure between the moving plate 16 and the first flip plate 5 automatically completes position calibration during mechanical linkage, eliminating manual adjustment errors. The coordinated action of the feed door 17 and the moving plate 16 ensures that the feed inlet only opens at the moment of material transfer, effectively maintaining the sealed environment of the freeze-drying chamber. The directional movement path of the moving plate 16 along a third direction reduces the operating space required for equipment docking, improving the compactness of the production line layout.

[0057] In some embodiments of the present invention, such as Figure 1 As shown, the freeze dryer body 1 includes a movable plate 16 and a feed door 17. The freeze dryer body 1 is provided with a feed inlet (not marked in the figure). The feed door 17 seals the feed inlet and opens and closes the feed inlet. The movable plate 16 is movablely installed in the freeze dryer body 1 along a third direction. The end of the movable plate 16 near the feed inlet is provided with a fourth snap-fit ​​part. The fourth snap-fit ​​part cooperates and connects with the first snap-fit ​​part 7 of the first flip plate 5.

[0058] The conveying mechanism 18 refers to a material transfer device with bidirectional transmission function, which can be implemented using a belt conveyor or roller conveyor. Its drive unit can be configured with a bidirectional motor to control the transmission direction. This mechanism is set at the connection position between the tiltable platform 3 and the feeding mechanism 2, and uses the transition space formed by the tiltable platform 3 for material transfer, avoiding the increase in equipment size caused by setting up separate inlet and outlet channels. External equipment refers to downstream processing units connected to the freeze dryer production line. Specifically, it can be a packaging machine or a sorting device. Through the direct connection of the conveying mechanism 18 with the external equipment, the continuous output of the processed material can be achieved.

[0059] Specifically, when the tiltable platform 3 is in a horizontal position, the conveying mechanism 18 activates its bidirectional transmission function. The material to be processed enters the conveying mechanism 18 from an external feeding device and is conveyed along the first transmission direction to the pushing start position of the feeding mechanism 2. At this time, the feeding mechanism 2 pushes the material into the freeze dryer body 1. After freeze drying is completed, the moving plate 16 pushes the processed material out of the tiltable platform 3, and the conveying mechanism 18 switches to the second transmission direction, transferring the material from the transition platform to external equipment. The horizontal position of the conveying mechanism 18 and the tiltable platform 3 forms a coplanar transmission path, allowing the material to complete bidirectional flow without additional lifting or turning.

[0060] Through the above technical solution, this application realizes the automated closed-loop control of the material feeding and discharging process of the freeze dryer production line. The bidirectional material transmission is completed through a single conveying mechanism 18, eliminating the structural redundancy of independent feeding and discharging mechanisms in traditional equipment. At the same time, the horizontal state of the flip-up platform 3 is used to directly form a transmission plane, avoiding the expansion of equipment volume caused by adding a fixed transmission channel.

[0061] In some embodiments of the present invention, such as Figure 1 As shown, it also includes a conveying mechanism 18, which is installed between the tiltable platform 3 and the feeding mechanism 2. The conveying mechanism 18 conveys the material to be processed to the position of the feeding mechanism 2, and the conveying mechanism 18 conveys the processed material to external equipment.

[0062] The conveying mechanism 18 refers to a material transfer device with bidirectional transmission function, which can be implemented using a belt conveyor or roller conveyor. Its drive unit can be configured with a bidirectional motor to control the transmission direction. This mechanism is set at the connection position between the tiltable platform 3 and the feeding mechanism 2, and uses the transition space formed by the tiltable platform 3 for material transfer, avoiding the increase in equipment size caused by setting up separate inlet and outlet channels. External equipment refers to downstream processing units connected to the freeze dryer production line. Specifically, it can be a packaging machine or a sorting device. Through the direct connection of the conveying mechanism 18 with the external equipment, the continuous output of the processed material can be achieved.

[0063] Specifically, when the tiltable platform 3 is in a horizontal position, the conveying mechanism 18 activates its bidirectional transmission function. The material to be processed enters the conveying mechanism 18 from an external feeding device and is conveyed along the first transmission direction to the pushing start position of the feeding mechanism 2. At this time, the feeding mechanism 2 pushes the material into the freeze dryer body 1. After freeze drying is completed, the moving plate 16 pushes the processed material out of the tiltable platform 3, and the conveying mechanism 18 switches to the second transmission direction, transferring the material from the transition platform to external equipment. The horizontal position of the conveying mechanism 18 and the tiltable platform 3 forms a coplanar transmission path, allowing the material to complete bidirectional flow without additional lifting or turning.

[0064] Through the above technical solution, this application realizes the automated closed-loop control of the material feeding and discharging process of the freeze dryer production line. The bidirectional material transmission is completed through a single conveying mechanism 18, eliminating the structural redundancy of independent feeding and discharging mechanisms in traditional equipment. At the same time, the horizontal state of the flip-up platform 3 is used to directly form a transmission plane, avoiding the expansion of equipment volume caused by adding a fixed transmission channel.

[0065] The present invention also provides a control method, the control method including the above-mentioned freeze dryer, such as... Figure 6 As shown, the control methods include: S1. When the freeze dryer is in feeding mode, the feeding door 17 is opened, the flip-up platform 3 is rotated to form a transition platform, the conveying mechanism 18 conveys multiple materials to the position of the feeding mechanism 2, and the feeding mechanism 2 pushes the materials from the conveying mechanism 18 through the transition platform to the moving plate 16. S2, the freeze dryer operates in working mode and processes the material on the moving plate 16; S3. The freeze dryer executes the discharge mode, opens the feed door 17, rotates the flip-up platform 3 to form a transition platform, and the freeze dryer pushes the material on the moving plate 16 out. The material is pushed onto the conveying component through the transition platform. S4; The freeze dryer enters the cleaning mode to clean the inside of the freeze dryer in preparation for processing the next batch of materials.

[0066] Specifically, in the feeding mode, after the feeding gate 17 is opened, the first flip plate 5 and the second flip plate 6 of the tilting platform 3 rotate to a horizontal position to form a transition platform. The conveying mechanism 18 conveys the material to the front end of the feeding mechanism 2, and the feeding mechanism 2 pushes the material along the transition platform onto the moving plate 16. In the working mode, the feeding gate 17 is closed, and the freeze dryer freeze-dries the material on the moving plate 16. When the discharging mode is started, the feeding gate 17 is opened again, the tilting platform 3 returns to a horizontal state, and the moving plate 16 pushes out the processed material, which is then transferred to the conveying assembly via the transition platform. The cleaning mode is then started to remove residues inside the freeze dryer. When switching between modes, the material transfer path is dynamically adjusted by coordinating the state of the feeding gate 17, the platform tilting angle, and the position of the moving plate 16, avoiding the space occupation problem of a fixed transition platform.

[0067] Through the above technical solution, this application achieves dynamic adjustment of the material transfer path of the freeze dryer, solving the technical problem that the fixed transition platform is bulky and cannot be adapted to multiple workstations. By reusing the flip-up platform 3 in the feeding and discharging modes, the complexity of the equipment structure is reduced and the material flow efficiency is improved. The automated four-stage control logic ensures seamless connection between each process, avoiding efficiency losses caused by manual intervention, while the integrated cleaning mode ensures the cleanliness requirements of continuous production.

[0068] In some embodiments of the present invention, such as Figure 7 As shown, the steps for the freeze dryer to execute the feeding mode include: S11. Open the feed door 17; S12, the first power component 10 drives the first flipping plate to rotate to a horizontal state, the second power component 12 drives the second flipping plate to a horizontal state, and the second locking part 8 cooperates with the third locking part 19 to form a transition platform between the first flipping plate and the second flipping plate. S13, the second power component 11 drives the first flip plate to move until the first snap-fit ​​part 7 and the fourth snap-fit ​​part snap-fit ​​together. S14. The feeding mechanism 2 pushes the material onto the moving plate 16 that cooperates with the first flipping plate; S15. The second power component 11 drives the first flip plate to move until the first locking part 7 and the fourth locking part are disconnected, and the moving plate 16 is replaced to cooperate with the first flip plate until the moving plate 16 in the freeze dryer is fully loaded with the material. S16. The second power component 12 drives the second flip plate to be perpendicular to the horizontal plane, the second power component 11 drives the first flip plate to the initial position, the first power component 10 drives the first flip plate to be perpendicular to the horizontal plane, and closes the feed door 17.

[0069] Specifically, when the feeding mode is activated, the opening of the feeding gate 17 provides a channel for material transfer. The first power component 10 drives the first flap 5 to rotate around the pivot to a horizontal position, while the second power component 12 drives the second flap 6 to rotate synchronously to a horizontal state. The second locking part 8 and the third locking part 19 on the edges of the two flaps form a rigid connection through the engagement of the locking groove and the locking tooth, forming a flat transition platform. The second power component 11 drives the first flap 5 to move along the guide rail toward the freeze dryer body 1, so that the first locking part 7 and the fourth locking part on the moving plate 16 complete the plug-in docking. At this time, the transition platform and the interior of the freeze dryer form a continuous feeding channel, and the feeding mechanism 2 pushes the material along the channel to the designated position of the moving plate 16. After a single loading is completed, the second power component 11 drives the first flap 5 to move in the opposite direction to disengage the locking part, and the displacement of the moving plate 16 switches to the next station for re- docking. This process is repeated until all the moving plates 16 are loaded. Finally, the second power component 12 drives the second flap 6 to reset to the vertical state, and the first flap 5 returns to its initial position in sequence through the power component and closes the feed door 17.

[0070] Through the above technical solutions, this application achieves adjustable unfolding and folding storage of the transition platform, effectively solving the space occupation problem caused by the large size of traditional equipment. The cooperation between the snap-fit ​​part and the power component ensures the straightness and stability of the material transfer path, avoiding material deviation or jamming. The multi-station switching mechanism enables multiple moving plates 16 inside the freeze dryer to continuously complete loading, reducing the frequency of manual intervention. The dynamic control of the flip plate and the opening and closing action of the feed door 17 form a timing coordination, optimizing the utilization rate of the internal space of the equipment while ensuring sealing.

[0071] In some embodiments of the present invention, such as Figure 8 As shown, the steps for the freeze dryer to execute the discharge mode include: S31. Open the feed door 17; S32. The first power component 10 drives the first flipping plate to rotate to a horizontal state, and the second power component 12 drives the second flipping plate to a horizontal state. The second locking part 8 and the third locking part 19 cooperate to form a transition platform between the first flipping plate and the second flipping plate. S33, the second power component 11 drives the first flip plate to move until the first locking part 7 and the fourth locking part are engaged. S34. The freeze dryer pushes the material onto the conveying device; S35. The second power component 11 drives the first flipping plate to move until the first locking part 7 and the fourth locking part are disconnected. The moving plate 16 is replaced and cooperates with the first flipping plate until all the material in the freeze dryer is discharged. S36. The second power component 12 drives the second flip plate to be perpendicular to the horizontal plane, the second power component 11 drives the first flip plate to the initial position, the first power component 10 drives the first flip plate to be perpendicular to the horizontal plane, and closes the feed door 17.

[0072] Specifically, during the discharge process, after the feed gate 17 is opened, the first power component 10 drives the first flap 5 to rotate from a vertical state to a horizontal state, and the second power component 12 simultaneously drives the second flap 6 to rotate to a horizontal position. At this time, the locking teeth of the second flap 6 are embedded in the locking groove of the first flap 5 to form a rigid transition platform. The second power component 11 pushes the first flap 5 to move horizontally, so that the groove of the first locking part 7 is engaged with the fourth locking part pin of the moving plate 16, establishing a material transfer channel between the freeze dryer and the transition platform. After the internal mechanism of the freeze dryer pushes the processed material to the conveying device, the second power component 11 moves in the opposite direction to disengage the first flap 5 from the current moving plate 16. Then, by changing the position of the moving plate 16, the above locking action is repeated to achieve continuous discharge of multiple batches of material. After all materials are discharged, the second power component 12 drives the second flap 6 to reset to the vertical position, the second power component 11 pushes the first flap 5 back to the initial position, the first power component 10 drives the first flap 5 to rotate to the vertical position, and finally closes the feed gate 17.

[0073] Through the above technical solution, this application solves the problem of equipment layout limitation caused by the large volume of the fixed platform, and achieves space optimization by dynamically adjusting the state of the transition platform; by utilizing the detachable characteristics of the snap-fit ​​structure and the coordinated control of multiple power components, the stability of the material transmission path during the discharge process is ensured, while supporting continuous discharge operation of multiple batches of the moving plate 16, thereby improving discharge efficiency and equipment compatibility.

[0074] In summary, such as Figures 1-8 As shown, a specific embodiment is as follows: Feeding Process: After the feed gate 17 opens, the tilting platform 3 rotates to a horizontal position. The first flip plate 5 extends and docks with the moving plate 16. After docking, the second flip plate 6 rotates and docks with the first flip plate 5. The conveying mechanism 18 moves the material to the second flip plate 6. The conveying mechanism 18 stops, and the feeding mechanism 2 pushes the material short distances. After a certain number of pushes, when the material reaches the required amount for one moving plate 16, a long push is performed. The first moving plate 16 is filled. The feeding mechanism 2 retracts to its original position, and the first flip plate 5 of the tilting platform 3 retracts a distance. The freeze dryer begins to replace the next moving plate 16. The first flip plate 5 of the tilting platform 3 advances a distance to dock with the moving plate 16. Feeding of the new moving plate 16 begins. After all moving plates 16 of the freeze dryer are filled, the feeding mechanism 2 retracts to its original position. The second flip plate 6 rotates and stands upright. The first flip plate 5 begins to retract to its original position. After the flip-up platform 3 begins to rotate to the starting position, the freeze dryer begins to close the feed door 17. After confirmation of the position, the freeze dryer begins to operate.

[0075] Discharge Process: After the freeze dryer has been operating for a long time and the product has passed inspection, the feed door 17 opens. The tilting platform 3 begins to dock with the freeze dryer, and the second tilting plate 6 begins to dock with the first tilting plate 5. After all docking is completed, the conveying mechanism 18 starts, and the material begins to discharge from the freeze dryer. When the material of one moving plate 16 has been discharged, the first tilting plate 5 of the tilting platform 3 retracts a certain distance. The freeze dryer then starts to replace the next moving plate 16. After the replacement is completed, the first tilting plate 5 begins to dock with the moving plate 16. It moves a certain distance to complete the docking. The above actions are repeated until the discharge is complete.

[0076] It should be understood that the specific embodiments described above are merely illustrative or explanatory of the principles of the invention and do not constitute a limitation thereof. Therefore, any modifications, equivalent substitutions, improvements, etc., made without departing from the spirit and scope of the invention should be included within the protection scope of the invention. Furthermore, the appended claims are intended to cover all variations and modifications falling within the scope and boundaries of the appended claims, or equivalent forms of such scope and boundaries.

Claims

1. A freeze dryer, characterized in that, include: The freeze dryer includes a main body, a feeding mechanism, and a tumbler platform. The tumbler platform is installed between the freeze dryer main body and the feeding mechanism. The tumbler platform is equipped with a movable transition platform. When the transition platform is horizontal, one end of the transition platform is connected to the freeze dryer main body, and the other end of the transition platform is connected to the feeding mechanism. The feeding mechanism pushes the material from the transition platform into the freeze dryer main body.

2. The freeze dryer according to claim 1, characterized in that, The flip-up platform includes a support, a first flip plate, and a second flip plate. The first flip plate and the second flip plate are movably mounted on the support, and when the first flip plate and the second flip plate are rotated to a horizontal position, they form a transition platform. The end of the first flip plate away from the second flip plate is connected to the freeze dryer body, and the end of the second flip plate away from the first flip plate is connected to the feeding mechanism.

3. The freeze dryer according to claim 2, characterized in that, The freeze dryer body includes a main body, a movable plate, and a feeding door. The main body is provided with a feeding port. The feeding door seals the feeding port and opens and closes the feeding port. The movable plate is movable in the main body in a third direction. The end of the movable plate near the feeding port is provided with a fourth snap-fit ​​part. The fourth snap-fit ​​part cooperates with the first flip plate.

4. The freeze dryer according to claim 1, characterized in that, It also includes a conveying mechanism, which is installed between the tiltable platform and the feeding mechanism. The conveying mechanism transports the material to be processed to the position of the feeding mechanism and the processed material to external equipment.

5. A control method, characterized in that, The control method applicable to the freeze dryer according to claims 1 to 10 includes: S1. The freeze dryer executes the feeding mode, opens the feeding door, rotates the flip-up platform to form the transition platform, and the conveying mechanism conveys multiple materials to the feeding mechanism position. The feeding mechanism pushes the materials from the conveying mechanism through the transition platform to the moving plate. S2. The freeze dryer operates in a working mode to process the material on the moving plate; S3. The freeze dryer executes the discharge mode, opens the feed door, rotates the flip-top platform to form the transition platform, and the freeze dryer body pushes out the processed material on the moving plate. The material is then pushed onto the conveying assembly via the transition platform. S4; The freeze dryer executes a cleaning mode to clean the inside of the freeze dryer in preparation for processing the next batch of material.

6. The control method according to claim 11, characterized in that, The steps for the freeze dryer to execute the feeding mode include: S11. Open the feed door; S12. The first power component drives the first flipping plate to rotate to a horizontal state, the second power component drives the second flipping plate to a horizontal state, and the second locking part cooperates with the third locking part to make the first flipping plate and the second flipping plate form the transition platform. S13. The second power component drives the first flip plate to move until the first locking part engages with the fourth locking part. S14. The feeding mechanism pushes the material onto the moving plate that cooperates with the first flipping plate; S15. The second power component drives the first flipping plate to move until the first locking part and the fourth locking part are disconnected, and the moving plate is replaced to cooperate with the first flipping plate until all the moving plates in the freeze dryer are loaded with the material. S16. The second power component drives the second flip plate to be perpendicular to the horizontal plane, the second power component drives the first flip plate to the initial position, the first power component drives the first flip plate to be perpendicular to the horizontal plane, and closes the feed door.

7. The control method according to claim 11, characterized in that, The steps for the freeze dryer to execute the discharge mode include: S31. Open the feed door; S32. The first power component drives the first flipping plate to rotate to a horizontal state, the second power component drives the second flipping plate to a horizontal state, and the second locking part cooperates with the third locking part to make the first flipping plate and the second flipping plate form the transition platform. S33, The second power component drives the first flip plate to move until the first locking part engages with the fourth locking part; S34. The freeze dryer pushes the material onto the conveying device; S35. The second power component drives the first flipping plate to move until the first locking part and the fourth locking part are disconnected. The moving plate is replaced and engaged with the first flipping plate until all the material in the freeze dryer is discharged. S36. The second power component drives the second flip plate to be perpendicular to the horizontal plane, the second power component drives the first flip plate to the initial position, the first power component drives the first flip plate to be perpendicular to the horizontal plane, and closes the feed gate.

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