A processing device for white-backed ginseng freeze-dried powder
By introducing a sealed end cap, a shelf, and a tray fixing mechanism into the white-backed Panax notoginseng freeze-dried powder processing device, the problem of uneven slurry thickness caused by tray offset was solved, drying efficiency and product quality were improved, and the operation process was simplified.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- BOZHOU UNIV
- Filing Date
- 2025-07-21
- Publication Date
- 2026-06-26
Smart Images
Figure CN224415541U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of freeze-dried powder processing technology, specifically relating to a freeze-dried powder processing device for Panax notoginseng. Background Technology
[0002] White-backed Panax notoginseng, a precious medicinal plant, has roots and rhizomes rich in various saponins, flavonoids, and volatile oils, possessing excellent hemostatic, anti-inflammatory, hepatoprotective, and anti-tumor pharmacological effects. To improve the preservation rate of its active ingredients and the stability of the product, freeze-drying is often used to prepare freeze-dried powder of white-backed Panax notoginseng. In existing technologies, the washed, sliced, and pulped white-backed Panax notoginseng pulp is typically packaged into several trays and placed uniformly on the shelves of a freeze-drying chamber for freezing and drying.
[0003] However, in the actual freeze-drying process, the slurry quality in the trays needs to be kept consistent to ensure uniform drying. Simultaneously, during low-temperature freezing and vacuum drying, airflow disturbances within the chamber, coupled with vibrations generated by the compressor, can easily cause slight movement or deflection of the trays on the shelves. On one hand, tray misalignment can lead to uneven slurry thickness, affecting drying efficiency; on the other hand, collisions or tilting between trays can cause slurry flow or even overflow, ultimately impacting product quality and yield.
[0004] To address these issues, some devices have attempted to improve pallet positioning accuracy by using slots within the housing or by employing double-rail pallets. However, these methods are complex, costly to install, and inconvenient to replace or clean, limiting their practical application and use. Utility Model Content
[0005] To address the problems existing in the prior art, the purpose of this utility model is to provide a white-backed Panax notoginseng freeze-dried powder processing device. This device is simple in structure, easy to operate, and can effectively limit the tray and enhance the stability of the tray during the freeze-drying process, thereby improving the drying uniformity of the slurry and the yield of the finished product.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a freeze-dried powder processing device for Panax notoginseng, including a freeze dryer, wherein the freeze dryer is hollow inside with an open front side, and a sealing end cap is hinged to the front side of the freeze dryer, the sealing end cap sealing the open front side of the freeze dryer;
[0007] The freeze dryer is equipped with a storage rack inside, and shelves are evenly and horizontally stacked on the inner side of the storage rack;
[0008] The upper surface of the shelf is covered with a tray body. The inner walls on both sides of the shelf are adapted to the width of the tray body. The top of the tray body is recessed to hold the slurry. The tray body is provided with handles at both the front and back. The handles are in the shape of an inverted U-shape.
[0009] A pallet fixing mechanism is installed on the front side of the shelf, which is used to fix the pallet body.
[0010] Furthermore, a vacuum tube is installed on the top of the freeze dryer, which is connected to a vacuum pump, and an end cap locking mechanism is installed on one side of the front end of the freeze dryer for locking and fixing the sealing end cap.
[0011] Furthermore, the tray fixing mechanism includes a fixing block fixed to one side of the bottom of the shelf, a rotating shaft rotatably mounted on the front side of the fixing block, a swing rod provided at the front end of the rotating shaft, and the swing rod being placed on the front side of the shelf.
[0012] Furthermore, a positioning block is provided at the end of the swing arm, and the positioning block is adapted to the inner size of the handle.
[0013] Furthermore, the shaft is hollow and has a groove on its inner wall, and a sliding rod slides through the center of the shaft. The surface of the sliding rod is provided with a protrusion that matches the internal size of the groove.
[0014] Furthermore, the slide rod passes through the fixing block, and a positioning bolt is provided at the rear end of the slide rod. The rear surface of the fixing block is provided with a first positioning groove and a second positioning groove with the axis of rotation as the center. The internal dimensions of the first positioning groove and the second positioning groove are the same, and the positioning bolt is adapted to the internal dimensions of the first positioning groove.
[0015] Furthermore, a knob is provided at the front end of the slide rod, and a spring is sleeved on the surface of the slide rod. The spring is placed between the knob and the pivot, and the spring applies a forward thrust to the knob.
[0016] Compared with the prior art, the beneficial effects of this utility model are:
[0017] The front of the freeze dryer is sealed with a sealing end cap and a locking mechanism to prevent external air from entering the freeze drying chamber, thus ensuring the stability of the vacuum environment. This helps to improve the drying efficiency and uniformity of the slurry and solves the problem of poor sealing performance of existing equipment leading to fluctuations in the drying environment.
[0018] The multi-layer shelf structure evenly distributed inside the rack is adapted to the width of the tray body. The standardized tray design ensures consistent slurry filling volume, improving the uniformity of the slurry freeze-drying process and the consistency of the finished product. It solves the problem of insufficient drying caused by uneven slurry thickness in the existing freeze-drying process.
[0019] The tray fixing mechanism set on the front side of the shelf has a reasonable structure and can automatically lock itself after the tray is placed in, preventing the tray from shifting due to vibration or airflow disturbance during freezing or vacuuming. This ensures the stability of the slurry freezing state and solves the technical problems of easy tray displacement and uneven slurry layering in existing devices.
[0020] The positioning block in the pallet fixing mechanism is precisely matched with the inside of the pallet handle, and the rotating shaft and the slide rod adopt a concave-convex structure for sliding guidance to ensure smooth and reliable positioning action; the positioning bolt at the rear end of the slide rod can be matched with two positioning slots respectively, and combined with the automatic reset function of the spring, it realizes stable switching between the operation state and the release state, which enhances the operation convenience and reliability of the fixing structure and solves the problems of inconvenient disassembly and assembly and inflexible control of traditional pallet fixing structures.
[0021] By controlling the movement of the slider with a knob and positioning it in conjunction with the positioning slot, combined with the spring return thrust, the installation and replacement of the pallet can be completed without the use of external tools, which further improves the operating efficiency of the equipment and the user experience, and solves the problems of complex operation and cumbersome maintenance of the existing equipment. Attached Figure Description
[0022] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0023] Figure 2 This is a schematic diagram of the structure of the freeze dryer of this utility model;
[0024] Figure 3 For the present utility model Figure 1 A schematic diagram of the transverse top section structure;
[0025] Figure 4 This is a schematic diagram of the pallet fixing mechanism of this utility model;
[0026] Figure 5 For the present utility model Figure 4 A schematic diagram of the exploded structure;
[0027] Figure 6 This is a schematic diagram of the positioning groove structure of this utility model.
[0028] The components represented by each number in the attached diagram are listed below: 1. Freeze dryer; 11. Vacuum tube; 12. Sealing end cap; 13. End cap locking mechanism; 2. Shelf; 21. Shelf plate; 3. Tray body; 31. Handle; 4. Tray fixing mechanism; 41. Fixing block; 42. First positioning groove; 43. Second positioning groove; 44. Rotating shaft; 441. Groove; 45. Swing rod; 46. Positioning block; 47. Slide rod; 471. Raised strip; 472. Positioning bolt; 473. Knob; 48. Spring. Detailed Implementation
[0029] To make the objectives and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the following text is merely used to describe one or more specific embodiments of this utility model and does not strictly limit the scope of protection specifically claimed by this utility model.
[0030] refer to Figures 1-4 As shown, a freeze-dried powder processing device for Panax notoginseng includes a freeze dryer 1. The freeze dryer 1 is hollow inside with an open front side. A sealing end cap 12 is hinged to the front side of the freeze dryer 1, sealing the open front side of the freeze dryer 1. The freeze dryer 1 is connected to the sealing end cap 12 by a hinge structure. When not in operation, the end cap can be locked by a locking mechanism 13 to prevent outside air from entering and affecting the freezing environment. The interior of the freeze dryer 1 is connected to a vacuum pump through a vacuum pipe 11 to create a low-temperature and low-pressure drying environment, which is conducive to the sublimation process of the Panax notoginseng slurry. The freeze dryer 1 has a multi-layer structure design, which can accommodate multiple shelves 21 inside to meet the needs of batch freeze-drying processing.
[0031] The freeze dryer 1 is equipped with a storage rack 2, on which shelves 21 are evenly and horizontally stacked. The storage rack 2 is fixed to the center of the inner cavity of the freeze dryer 1 by welding, and the whole is made of stainless steel to ensure good low temperature resistance and corrosion resistance. Multiple shelves 21 are evenly distributed from top to bottom to form a multi-layer tray holding structure. Each shelf 21 is horizontally set and fixed in the guide rail groove on the inner side of the storage rack 2 to ensure that the trays are placed stably and reliably. This structure can meet the simultaneous processing of different batches of Panax notoginseng slurry trays, effectively improving the efficiency of equipment use.
[0032] The tray body 3 is placed on the upper surface of the shelf 21. The inner walls on both sides of the shelf 2 are adapted to the width of the tray body 3. The top of the tray body 3 is recessed to hold the slurry. The tray body 3 is equipped with handles 31 at both the front and back. The handles 31 are inverted U-shaped structures. The tray body 3 is made of food-grade stainless steel, which has good thermal conductivity and chemical corrosion resistance. The top recess is designed to hold the white-backed Panax notoginseng slurry. Its depth and volume are standardized to ensure uniform distribution of the slurry and freeze-drying efficiency. The U-shaped handles 31 at the front and back facilitate manual or mechanical loading and unloading and provide an effective limit insertion point for the tray fixing mechanism 4. The tray body 3 and the shelf 2 fit tightly together, which helps to prevent the tray from shifting laterally during the freeze-drying process.
[0033] A tray fixing mechanism 4 is installed on the front side of the shelf 21. The tray fixing mechanism 4 is used to fix the tray body 3. The tray fixing mechanism 4 is set on the front side of each shelf 21. It has a compact structure and reasonable layout. It adopts a mechanical limiting method combined with a reset spring device to stabilize the front and rear position of the tray body 3 during equipment operation. The cooperating parts of the fixing mechanism are locked with the tray handle 31 through mechanical fitting. It can effectively suppress the tray shaking caused by air pressure fluctuations or vibrations in the freeze dryer, and ensure the uniformity of slurry freezing and the consistency of product quality.
[0034] refer to Figure 1 and Figure 2 As shown, a vacuum tube 11 is installed on the top of the freeze dryer 1, and the vacuum tube 11 is connected to the vacuum pump. An end cap locking mechanism 13 is installed on one side of the front end of the freeze dryer 1 to lock and fix the sealing end cap 12. The vacuum tube 11 passes through the top of the freeze dryer 1 and is connected to the vacuum pump conduit through a sealing joint. It has the characteristics of high airtightness and corrosion resistance. The vacuum tube 11 is used to quickly remove air from the cavity and form a low-pressure state. In conjunction with the freezing system, it can realize the sublimation transformation of water inside the slurry. The end cap locking mechanism 13 cooperates with the sealing end cap 12 through a rotating buckle or screw clamping structure to ensure that the sealing end cap 12 is stably closed in a vacuum environment and prevent pressure fluctuations from affecting the environment inside the chamber.
[0035] refer to Figure 3 and Figure 4 As shown, the pallet fixing mechanism 4 includes a fixing block 41 fixed to one side of the bottom of the shelf 21. A rotating shaft 44 is rotatably mounted on the front side of the fixing block 41. A swing rod 45 is provided at the front end of the rotating shaft 44 and is positioned on the front side of the shelf 21. The fixing block 41 is firmly installed on the lower front side of the shelf 21 by screw fixing. It has a guide hole inside for axial positioning of the rotating shaft 44. The rotating shaft 44 extends laterally along the fixing block 41 and is supported at both ends to achieve rotatable movement. The length of the swing rod 45 connected at the front end is adapted to the front position of the pallet body 3 and can swing around the center angle of the rotating shaft 44 to realize the switching function of limit and release states.
[0036] refer to Figure 3 and Figure 4 As shown, a positioning block 46 is provided at the end of the swing rod 45. The positioning block 46 is adapted to the inner size of the handle 31. The positioning block 46 has an arc-shaped rectangular structure and fits tightly with the inner curved groove of the handle 31 of the tray body 3. When the swing rod 45 is rotated to the upward state by the rotating shaft 44, the positioning block 46 is embedded in the inner limiting groove of the handle 31 to form a stable mechanical locking state, preventing the tray from moving forward and ensuring that the tray does not misalign or shake during the freeze-drying process.
[0037] refer to Figures 4-6As shown, the rotating shaft 44 is hollow and has a groove 441 on its inner wall. The center of the rotating shaft 44 slides through the slide rod 47. The surface of the slide rod 47 is provided with a protrusion 471 that matches the internal size of the groove 441. The rotating shaft 44 is a hollow cylindrical structure, and its inner cavity is uniformly provided with grooves 441 along the axial direction. The grooves 441 serve as guide and limiting channels, allowing the slide rod 47 to perform linear reciprocating motion within them while restricting its rotational freedom. The cross-section of the slide rod 47 is precisely matched with the inner diameter of the rotating shaft 44, and the surface protrusion 471 is embedded in the groove 441, ensuring that its posture is stable during the push-pull process and that there is no rotational deviation, providing a basic guarantee for the stable conversion of the tray's limiting state.
[0038] refer to Figure 5 and Figure 6 As shown, the slide rod 47 passes through the fixed block 41, and a positioning bolt 472 is provided at the rear end of the slide rod 47. The rear surface of the fixed block 41 is provided with a first positioning groove 42 and a second positioning groove 43 with the axis of the rotating shaft 44 as the center. The internal dimensions of the first positioning groove 42 and the second positioning groove 43 are the same, and the positioning bolt 472 is adapted to the internal dimensions of the first positioning groove 42. The slide rod 47 passes through the guide hole on the fixed block 41, and the rear positioning bolt 472 can be inserted into the first positioning groove 42 or the second positioning groove 43 by sliding adjustment to achieve locking control. The first positioning groove 42 is used for stable limiting of the operating state, and the second positioning groove 43 is used for releasing or adjusting the state locking. The first positioning groove 42 and the second positioning groove 43 are arranged with equal arcs to form a symmetrical structure to ensure that the slide rod 47 switches smoothly between the two states.
[0039] refer to Figure 4 and Figure 5 As shown, a knob 473 is provided at the front end of the slide rod 47, and a spring 48 is sleeved on the surface of the slide rod 47. The spring 48 is placed between the knob 473 and the rotating shaft 44, and the spring 48 applies a forward pushing force to the knob 473. The knob 473 is fixed to the front end of the slide rod 47 by a threaded or snap-fit structure, and its outer diameter is convenient for manual pressing to control the slide rod 47 to move backward. The spring 48 is a compression spring structure, with one end abutting against the knob 473 and the other end abutting against the inner wall of the front end of the rotating shaft 44. It has good elastic recovery performance and always pushes the slide rod 47 forward in the non-operational state, so that the positioning bolt 472 is embedded in the first positioning groove 42 to achieve the limit. By pressing the knob 473 to overcome the elastic force of the spring 48, the slide rod 47 can be moved backward to complete the separation operation of the positioning block 46 and the handle 31, which meets the convenience needs of tray replacement or maintenance.
[0040] The working principle of this utility model is as follows: After washing, cutting and pulping the white-backed Panax notoginseng, the pulp is poured evenly into the tray body 3, and the amount of pulp inside multiple tray bodies 3 is the same. The sealing end cap 12 is opened, and then the tray bodies 3 are placed one by one on the surface of the shelf 21. After being placed, the two sides of the tray body 3 are limited by the shelf 2 to maintain lateral fixation. The sealing end cap 12 is closed and locked by the end cap locking mechanism 13 to freeze the pulp and then dry the pulp.
[0041] During the freeze-drying process, factors such as internal airflow and compressor vibration can cause the tray body 3 to vibrate or move, affecting its stability and consequently the freezing effect of the slurry. Therefore, the tray body 3 can be fixed by the tray fixing mechanism 4. Due to the presence of the spring 48, the knob 473 has a forward thrust. At this time, the slide bar 47 is at the front of its stroke. The positioning bolt 472 can cooperate with the first positioning groove 42 or the second positioning groove 43 for fixation. However, since the rotating shaft 44 rotates inside the fixing block 41, and through the cooperation of the protrusion 471 and the groove 441, the rotating shaft 44 can rotate with the slide bar 47, but will not rotate. Axial movement occurs when the positioning bolt 472 engages with the first positioning groove 42, causing the swing rod 45 to tilt upwards, allowing the positioning block 46 to enter the inside of the handle 31 to limit the position of the tray body 3. Conversely, when picking up or placing the tray body 3, the control knob 473 engages with the second positioning groove 43 to cause the swing rod 45 to shift downwards. During operation, pressing the knob 473 causes the slide rod 47 to move backwards, at which point the positioning bolt 472 disengages. After rotation, the spring force of the spring 48 causes the positioning bolt 472 to overlap and engage again to maintain the angle of the swing rod 45. At this time, there are no obstacles on the front side of the tray body 3. This structure can improve the stability of the tray body 3 and reduce the impact of vibration on the freezing of the slurry during processing.
[0042] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model, unless otherwise specified or limited, shall be implemented using conventional methods in the field.
Claims
1. A processing apparatus for freeze-dried Panax notoginseng powder, comprising a freeze dryer (1), characterized in that: The freeze dryer (1) is hollow inside with an open front side. A sealing end cap (12) is hinged to the front side of the freeze dryer (1) to seal the open front side of the freeze dryer (1). The freeze dryer (1) is equipped with a shelf (2) inside, and the shelf (21) is evenly and horizontally stacked on the inner side of the shelf (2); The upper surface of the shelf (21) is provided with a tray body (3). The inner walls on both sides of the shelf (2) are adapted to the width of the tray body (3). The top of the tray body (3) is recessed for holding slurry. The tray body (3) is provided with handles (31) at the front and back. The handles (31) are in the shape of an inverted U-shape. A tray fixing mechanism (4) is installed on the front side of the shelf (21), which is used to fix the tray body (3).
2. The apparatus for processing white-backed Panax notoginseng freeze-dried powder according to claim 1, characterized in that: The freeze dryer (1) is equipped with a vacuum tube (11) on top, which is connected to a vacuum pump. The freeze dryer (1) is equipped with an end cap locking mechanism (13) on one side of the front end for locking and fixing the sealing end cap (12).
3. The apparatus for processing white-backed Panax notoginseng freeze-dried powder according to claim 1, characterized in that: The tray fixing mechanism (4) includes a fixing block (41) fixed to one side of the bottom of the shelf (21). A rotating shaft (44) is rotatably mounted on the front side of the fixing block (41). A swing rod (45) is provided at the front end of the rotating shaft (44). The swing rod (45) is located on the front side of the shelf (21).
4. The apparatus for processing white-backed Panax notoginseng freeze-dried powder according to claim 3, characterized in that: The end of the swing arm (45) is provided with a positioning block (46), which is adapted to the inner size of the handle (31).
5. The apparatus for processing white-backed Panax notoginseng freeze-dried powder according to claim 4, characterized in that: The shaft (44) is hollow and has a groove (441) on its inner wall. The shaft (44) slides through a slide rod (47) at its center. The slide rod (47) has a protrusion (471) on its surface that matches the internal size of the groove (441).
6. The apparatus for processing white-backed Panax notoginseng freeze-dried powder according to claim 5, characterized in that: The slide rod (47) passes through the fixing block (41). A positioning bolt (472) is provided at the rear end of the slide rod (47). A first positioning groove (42) and a second positioning groove (43) are respectively opened on the rear surface of the fixing block (41) with the axis of the rotating shaft (44) as the center. The internal dimensions of the first positioning groove (42) and the second positioning groove (43) are the same. The positioning bolt (472) is adapted to the internal dimensions of the first positioning groove (42).
7. The apparatus for processing white-backed Panax notoginseng freeze-dried powder according to claim 6, characterized in that: A knob (473) is provided at the front end of the slide rod (47), and a spring (48) is sleeved on the surface of the slide rod (47). The spring (48) is placed between the knob (473) and the rotating shaft (44), and the spring (48) applies a forward thrust to the knob (473).