Freeze-dried material conveying system

Abstract

A freeze-dried material conveying system, comprising: a tray conveying device, comprising a conveying frame and a plurality of rollers uniformly distributed along the length direction of the conveying frame, and a first gap is arranged between adjacent rollers; a tray feeding device, comprising a fixed frame, a first driving part and a second driving part arranged on the fixed frame, wherein the first driving part comprises a first guide plate mounted on the fixed frame and a first driving mechanism for driving the first guide plate to perform lifting action; the second driving part comprises a driving plate integrally arranged with the first guide plate and a second driving mechanism arranged inside the driving plate, which is used to transfer the tray conveyed from the tray conveying device to the driving plate to a freeze-dried tray frame; and the freeze-dried tray frame comprises a rectangular frame and a plurality of support plates arranged on the inner wall of the rectangular frame for placing the tray, and one end of the support plate is provided with a locking device for locking the tray on the support plate.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of vacuum freeze-drying equipment, and particularly relates to a freeze-dried material conveying system. BACKGROUND

[0002] The vacuum freeze-drying equipment, or simply freeze-drying equipment, is to freeze food, medicine and other materials to below the eutectic point temperature, so that the water in the materials becomes solid ice, and then the ice is directly sublimated into water vapor in a vacuum environment, and the water vapor is condensed by a water trap to finally dry the materials. In the traditional freeze-drying equipment, the feeding and discharging are completed by manual operation, for example, the materials to be freeze-dried are manually placed in a tray, and then the tray is manually fed into a trolley. However, manual feeding and discharging is time-consuming and laborious, and there are safety hazards. For example, the trolley can be fed and discharged on both sides, but it is strictly required that the operators on both sides feed and discharge at the same time, otherwise the trolley will tilt due to the unbalanced weight on both sides, and even overturn in severe cases. Therefore, the prior art still has room for improvement. SUMMARY

[0003] The present application aims to overcome the defects of the prior art and provide a freeze-dried material conveying system.

[0004] According to the freeze-dried material conveying system of the present application, the freeze-dried material conveying system comprises:

[0005] The tray conveying device comprises a conveying frame and a plurality of rollers uniformly distributed along the length direction of the conveying frame, and a first gap is provided between adjacent rollers.

[0006] The tray feeding device comprises a fixed frame, a first driving part and a second driving part provided on the fixed frame, wherein the first driving part comprises a first guide plate mounted on the fixed frame, and a first driving mechanism driving the first guide plate to perform lifting action; the second driving part comprises a driving plate integrally provided with the first guide plate, and a second driving mechanism provided inside the driving plate, which is used to transfer the tray conveyed from the tray conveying device to the driving plate to the freeze-dried tray rack.

[0007] The freeze-dried tray rack comprises a rectangular frame and a plurality of support plates provided on the inner wall of the rectangular frame for placing the trays, and one end of the support plate is provided with a locking device for locking the tray on the support plate.

[0008] The driving plate is provided with a claw on both sides for supporting the tray, and the upper end of the driving plate is provided with a first cavity extending along the length direction of the driving plate, and a first transmission belt is movably provided in the first cavity, which is driven by the second driving mechanism, and the upper end surface of the first transmission belt is flush with the upper end surface of the claw.

[0009] The first cavity is provided with a jacking mechanism for jacking the first transmission belt, the jacking mechanism comprises second guide plates respectively arranged on both sides of the two ends of the first transmission belt, two guide grooves penetrating the side of the driving plate, a second rotating shaft movably arranged in the two guide grooves and a second roller sleeved on the second rotating shaft, the second rotating shaft and the second roller are located in the first transmission belt and at the upper end of the inner wall of the first transmission belt, and a guide inclined surface for guiding the upward movement of the second rotating shaft is formed on the second guide plate.

[0010] A third rotating shaft parallel to the guide groove is rotatably arranged on the driving plate, and a third motor is arranged to drive the third rotating shaft to rotate, the third rotating shaft drives the second guide plate to move through a pull rope, and the second rotating shaft and the second roller are moved upward along the guide groove through the guide inclined surface on the second guide plate, thereby completing the jacking of the first transmission belt.

[0011] The plurality of support plates are uniformly distributed in the height direction of the rectangular frame in the rectangular frame, the length direction of the support plate is parallel to the length direction of the material shelf, the tray is arranged on two support plates located on the same horizontal plane, and a baffle is fixedly arranged between the two support plates located on the same horizontal plane and away from one end of the rectangular frame, and a locking block for fixing the tray on the baffle and capable of fixing adjacent two trays is arranged on the tray.

[0012] A second cavity is formed in the locking block, a channel penetrating the side wall of the tray and communicating with the second cavity in the locking block is formed in the side wall of the tray, the diameter of the cavity gradually decreases in the direction of the channel, a locking pin for being inserted into the channel of the locking block is fixedly arranged on the baffle, and a locking pin for being inserted into the channel of the locking block of the adjacent tray is fixedly arranged on the side of the tray facing the adjacent tray.

[0013] A plurality of steel balls for locking the locking pin are arranged in the second cavity, and a partition plate is movably arranged in the second cavity, the steel balls are located between the partition plate and the channel in the second cavity, the partition plate is made of metal, and a spring for driving the partition plate to move in the direction of the channel is arranged in the second cavity, the spring is located between the partition plate and the side of the second cavity away from the channel.

[0014] Two hanging rods extending to the center of the upper end surface of the tray shelf are fixedly arranged on both sides of the upper end of the tray shelf in the length direction of the tray shelf, a gap is left between the hanging rods on both sides of the upper end of the tray shelf, a plurality of hooks for being hung on the hanging rods are fixedly arranged on the upper end of the rectangular frame, and the hooks and the hanging rods one-to-one correspond.

[0015] A plurality of grab bars for being gripped by an external mechanical hand are fixedly arranged on the upper end of the rectangular frame.

[0016] Two sides of the outer wall of the rectangular frame are respectively provided with a support, and the support plate and the locking device are arranged in the support for accommodating and locking the tray

[0017] According to the freeze-dried material conveying system, the tray carrying the material can be moved to the tray loading device by the conveying device, the tray is lifted to and fed into the corresponding level of the tray rack by the first driving mechanism and the second driving mechanism of the tray loading device, the locking device arranged on the tray is used for locking the tray in the tray rack, the falling of the tray caused by the shaking of the tray rack during the movement of the tray rack is avoided, and during the upward loading, the center of gravity of the rectangular frame of the tray rack gradually moves downward with the increase of the number of the trays, and the whole tray rack is more stable and less likely to overturn. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is a schematic diagram of a freeze-dried material conveying system according to an embodiment of the present application.

[0019] Figure 2 is a schematic diagram of Figure 1 the structure of the freeze-dried tray loading device shown in the figure.

[0020] Figure 3 and 4 is a schematic diagram of Figure 2 the first guide plate and the driving plate of the tray loading device shown in the figure.

[0021] Figure 5 is a schematic diagram of Figure 3 an internal structure of the driving plate shown in the figure.

[0022] Figures 6 to 8 is a schematic diagram of Figure 5 each part of the driving plate shown in the figure.

[0023] Figure 9 is a schematic diagram of Figure 2 the fixed frame of the tray loading device cooperating with the conveying frame of the tray conveying device shown in the figure.

[0024] Figure 10 is a schematic diagram of Figure 9 one fixed seat of the fixed frame shown in the figure.

[0025] Figure 11 is a schematic diagram of the overall structure of a freeze-dried tray rack of a freeze-dried material conveying system according to another embodiment of the present application.

[0026] Figure 12 is a schematic diagram of Figure 11 the structure of a material rack and a rectangular frame of the freeze-dried tray rack shown in the figure.

[0027] Figure 13 is a structure diagram of the rectangular frame shown in Figure 12

[0028] Figure 14 is a structure diagram of the rectangular frame shown in Figure 11

[0029] Figure 15 is a structure diagram of the rectangular frame shown in Figure 14

[0030] Figure 16 is a structure diagram of the rectangular frame shown in Figure 13

[0031] Figure 17 is a structure diagram of the rectangular frame shown in Figure 15

[0032] Figure 18 is a structure diagram of the rectangular frame shown in Figure 2

[0033] Figure 19 is a structure diagram of the rectangular frame shown in DETAILED DESCRIPTION

[0034] The freeze-dried material conveying system of the present application will be further described below in conjunction with the accompanying drawings and embodiments, and the corresponding and other objects, schemes and advantages of the present application will become more apparent.

[0035] Figure 1 ​​​​​​is a schematic view showing a freeze-dried material conveying system according to an embodiment of the present application. Referring to FIG. 1, the freeze-dried material conveying system is a system for automatically conveying material-carrying trays to a freeze-dried tray rack, and the system comprises: a tray conveying device 1, which comprises a conveying frame 101 and a plurality of rollers 103 evenly distributed along the length direction of the conveying frame, and a first gap 102 is arranged between adjacent rollers; a tray loading device 4, which comprises a fixed frame 41, a first driving part and a second driving part arranged on the fixed frame, wherein the first driving part comprises a first guide plate 7 mounted on the fixed frame, and a first driving mechanism 9 for driving the first guide plate to perform lifting and lowering actions; the second driving part comprises a driving plate 10 integrally arranged with the first guide plate, and a second driving mechanism 13 arranged inside the driving plate, which is used to transfer the tray conveyed from the tray conveying device to the driving plate to the freeze-dried tray rack; and a freeze-dried tray rack 2, which comprises a rectangular frame 22 and a plurality of support plates arranged on the inner wall of the rectangular frame for placing trays 38, and one end of the support plate is provided with a locking device for locking the tray on the support plate.

[0036] When the system is running, the tray 38 carrying the material to be processed moves forward from the loading end of the tray conveying device 1, for example, through the driving of the rollers 103, to above the driving plate 10 of the tray loading device 4, and the first driving mechanism 9, for example, lifts the first guide plate integrally arranged with the driving plate to the height of the corresponding level of the tray rack 2, and then the second driving mechanism 13 transfers the tray 38 conveyed to the driving plate to the freeze-dried tray rack 2.

[0037] Figure 2 is a schematic view showing Figure 1 the structure of the freeze-dried tray loading device shown in FIG. 1, Figure 3 and 4 is a schematic view showing the first guide plate and the driving plate of the tray loading device shown in FIG. 2. Referring to Figures 2 to 4The freeze-drying tray feeding device comprises a fixing frame 4, the fixing frame 4 comprises a fixing base 41 and two vertical columns 5 installed on the fixing base 41, and a fixing plate 6 is fixedly arranged at the upper end of the vertical columns 5, and the two ends of the fixing plate 6 are fixedly arranged at the upper end of the two vertical columns 5 respectively. The freeze-drying tray feeding device further comprises a first driving part, the first driving part comprises a first guide plate 7 capable of moving up and down along the length direction of the vertical columns 5, the two ends of the first guide plate 7 are sleeved on the two vertical columns 5 respectively, and a plurality of clamping claws 8 for supporting the tray 38 are integrally arranged on one side of the first guide plate 7. Preferably, the width of the clamping claw 8 is slightly smaller than the first gap 102 between the adjacent rollers 103 of the aforementioned tray conveying device 1, so that the clamping claw 8 can be horizontally inserted into the first gap. The first driving part further comprises a first driving mechanism 9 arranged on the fixing plate 6 and used for driving the first guide plate 7 to move up and down along the length direction of the vertical columns 5. When the tray 38 carrying the material to be processed is conveyed from the tray conveying device 1 to the upper side of the clamping claw 8, the clamping claw 8 integrally arranged on the first guide plate 7 can support the tray upward from the roller 103.

[0038] The freeze-drying tray feeding device further comprises a second driving part, the second driving part comprises a driving plate 10 integrally arranged with the first guide plate 7, a first cavity 11 extending along the length direction of the driving plate 10 is arranged at the upper end of the driving plate 10, a first transmission belt 12 is movably arranged in the first cavity 11, and the upper end surface of the first transmission belt 12 is flush with the upper end surface of the aforementioned clamping claw 8, for example. A certain gap is left between the side of the first transmission belt 12 and the inner wall of the first cavity 11, a second driving mechanism 13 for driving the first transmission belt 12 to roll is arranged on the side wall of the driving plate 10, and a jacking mechanism 14 for jacking the first transmission belt 12 is arranged in the first cavity 11.

[0039] The freeze-drying tray feeding device, wherein the first driving mechanism 9 comprises a first motor 15 fixedly arranged on the fixing plate 6, a first gear 16 is fixedly arranged on the first motor 15, a chain 17 is sleeved on the first gear 16, the chain 17 is always engaged with the aforementioned first gear 16, one end of the chain 17 is fixedly arranged on the aforementioned first guide plate 7, and the other end of the chain 17 is located on both sides of the fixing plate 6. A counterweight 18 is fixedly arranged at the end of the chain 17 away from the aforementioned first guide plate 7. The first guide plate 7 is fixedly arranged with a mounting block 19, the aforementioned driving plate 10 is fixedly arranged at one end of the mounting block 19, and the end of the chain 17 towards the first guide plate 7 is fixedly arranged on the mounting block 19. The first gear 16 on the first motor 15 drives the chain 17 to move, and the two ends of the chain 17 are fixedly arranged on the mounting block 19 and the counterweight 18 on the first guide plate 7, so that the first guide plate 7 can be driven to move up and down more easily.

[0040] Figure 5 is a schematic view showing an internal structure of the drive board shown in Figure 3 Figures 6 to 8 is a schematic view showing an internal structure of the drive board shown in Figures 3 to 5 Figures 5 to 8 ​​The second driving mechanism 13 comprises two first rotating shafts 20 arranged at both ends of the first cavity 11, and a first roller 21 is sleeved on the first rotating shaft 20. The first transmission belt 12 is sleeved on the two first rollers 21, and one end of the first rotating shaft 20 is located outside the driving plate 10. A second motor 22 for driving the first rotating shaft 20 to rotate is fixedly arranged on the side wall of the mounting block 19. The second motor 22 drives the first rotating shaft 20 to rotate through the second transmission belt 23. The jacking mechanism 14 comprises two second guide plates 24 arranged on the two sides of the same end of the first transmission belt 12 and abutting against the inner wall of the first cavity 11. First and second mounting plates 25 and 26 are fixedly arranged from outside to inside between the two second guide plates 24 located at the same end of the first transmission belt 12. Two guide grooves 27 extending in the horizontal direction and perpendicular to the length direction of the driving plate 10 are formed in the driving plate 10. A second rotating shaft 28 is movably arranged in the guide groove 27. A second roller 29 is sleeved on the second rotating shaft 28. The second rotating shaft 28 and the second roller 29 are located in the first transmission belt 12 and between the second guide plates 24 at both ends of the first transmission belt 12. The upper end of the second roller 29 abuts against the upper end of the inner wall of the first transmission belt 12. A guide inclined surface 30 for guiding the second rotating shaft 28 to move upward is formed in the second guide plate 24. The guide inclined surface 30 gradually inclines toward the second rotating shaft 28 from top to bottom. A third rotating shaft 31 parallel to the guide groove 27 is rotatably arranged on the driving plate 10 and located between the two second mounting plates 26. A pull rope 32 is fixedly arranged on the end face of the second mounting plate 26 toward the third rotating shaft 31. The other end of the pull rope 32 is fixedly arranged on the third rotating shaft 31. One end of the third rotating shaft 31 is located outside the driving plate 10. A third motor 33 for driving the third rotating shaft 31 to rotate is arranged on the side wall of the driving plate 10. The third motor 33 drives the third rotating shaft 31 to rotate through a third transmission belt 34.

[0041] The first mounting plate 25 is fixedly provided with a first spring 35 on the end face away from the second mounting plate 26, the first spring 35 drives the first mounting plate 25 away from the third rotating shaft 31, and the two first springs 35 on the two first mounting plates 25 are respectively fixedly arranged at the two ends of the inner wall of the first cavity 11 away from the third rotating shaft 31. The reset of the second guide plate 24 is completed through the first spring 35.

[0042] Figure 9 is a schematic view of the fixed frame of the tray feeding device shown in Figure 2 cooperating with the transmission frame of the tray transmission device, Figure 10 is a schematic view of a fixed seat of the fixed frame shown in Figure 9 . See Figure 9 and Figure 10 , the bottom of the fixed seat 41 of the fixed frame 4 is movably provided with two groups of third rollers 52, and a fourth motor 53 is arranged to drive the third rollers 52 to rotate. The bottom of the transmission frame is fixedly provided with a guide rod 54 extending along the length direction of the transmission frame 101, and a plurality of guide sleeves 55 are fixedly arranged on the side wall of the fixed seat 41 and sleeved on the guide rod 54, so that the fixed frame 4 can move and adjust along the length direction of the transmission frame 101.

[0043] Figure 11 is a schematic view of the overall structure of a freeze-dried tray frame of a freeze-dried material transmission system according to another embodiment of the present application; Figure 12 is a schematic view of a material frame and a rectangular frame of the freeze-dried tray frame shown in Figure 11 ; Figure 13 is a schematic view of the rectangular frame shown in Figure 12 . See Figure 11 to Figure 13 , the freeze-dried tray frame includes a material frame 2 and a rectangular frame 36 clamped on the material frame 2, a plurality of support plates 37 for placing trays 38 are fixedly arranged on the two sides of the inner wall of the rectangular frame 36, the plurality of support plates 37 are uniformly distributed in the vertical direction in the rectangular frame 36, the length direction of the support plate 37 is parallel to the length direction of the material frame 2, the tray 38 is arranged on two support plates 37 located on the same horizontal plane, the support plate 37 is, for example, L-shaped, and a baffle 39 is fixedly arranged between the ends of the two support plates 37 located on the same plane and away from the rectangular frame 36.

[0044] Figure 14 is a schematic view of the structure of the tray shown in Figure 11 ; Figure 15 is a sectional view of the tray shown in Figure 14 when two trays are locked; Figure 16 is a schematic view of the structure of the tray shown in Figure 13Figure 17 is a partial enlarged view of the rectangular frame shown in Figure 16; Figure 18 is a partial enlarged view of the tray shown in Figure 17; and Figure 15 Figure 18 is a partial enlarged view of the tray shown in Figure 17; and Figures 11 to 17 The locking block 40 and the locking pin 43 on the tray 38 are provided with two, for example, and the locking pin 43 on the baffle 39 is provided with two, for example. The locking pin 43 and the locking block 40 are one-to-one corresponding. The steel ball 44 in the locking block 40 is provided with five, for example, and the diameter of the steel ball 44 is smaller than the diameter of the channel 42. After the tray 38 is placed on the support plate 37, the locking pin 43 on the baffle 39 is inserted into the channel 42, the locking pin 43 pushes the steel ball 44 to move away from the channel 42, and at the same time, the steel ball 44 always moves towards the channel 42 under the driving of the partition plate 45 and the spring 46. When the tray 38 and the baffle 39 are in contact and move to the fixed position, the locking of the tray 38 is completed. When the material rack 2 is tilted during the movement, the tray 38 moves away from the baffle 39, the partition plate 45 moves towards the channel 42 under the driving of the spring 46, and the locking pin 43 on the baffle 39 moves away from the channel 42. Through the friction between the locking pin 43 and the steel ball 44, the steel ball 44 is driven to move towards the channel 42, and through the cavity 41 with a diameter gradually decreasing towards the channel 42, the locking pin 43 and the steel ball 44 are locked in the cavity 41, that is, the locking of the tray 38 is completed, which avoids the falling of the tray 38 caused by the shaking of the material rack 2 during the movement of the material rack 2. During the upward feeding from bottom to top, with the increase of the number of trays 38, the center of gravity of the rectangular frame 36 gradually moves down, and the whole is more stable and not easy to turn over.

[0045] The length of the tray 38 is, for example, the same as the distance between the two support plates 37 in the same plane within the rectangular frame 36, and the width of the tray 38 is, for example, one fourth of the length of the support plate 37, so that more trays 38 can be placed to effectively improve the processing efficiency. Compared with the prior art, when the tray is placed on the support plate in use of the freeze-drying tray rack according to the present application, the locking pin on the baffle plate is inserted into the channel of the tray, the locking pin pushes the steel ball to move away from the channel, while the steel ball is always driven by the partition plate and the spring to move towards the channel, when the tray is in contact with the baffle plate and moves to the fixed position, the locking of the tray is completed, when the material rack is tilted during the movement, the tray moves away from the baffle plate, the partition plate is driven by the spring to move towards the channel, the locking pin on the baffle plate moves away from the channel, the steel ball is driven to move towards the channel by the friction between the locking pin and the steel ball, and the locking pin and the steel ball are locked in the cavity with a gradually decreasing diameter towards the channel,

[0046] Figure 18 is a schematic structural view of a material rack according to another embodiment of the present application. Refer to Figure 12 , Figure 12 , 13 and Fig. 18, two hanging rods 47 extending towards the center of the upper end surface of the material rack 2 are fixedly arranged on both sides of the upper end of the material rack 2 along the length direction of the material rack 2, and a certain gap is left between the two hanging rods 47 on the upper end of the material rack 2. A plurality of hooks 48 for hanging on the above-mentioned hanging rods 47 are fixedly arranged on the upper end of the rectangular frame 36, and the hooks 48 correspond to the hanging rods 47 one by one. An opening 49 for clamping on the above-mentioned hanging rods 47 is formed on the hook 48, and the openings 49 on the plurality of hooks 48 face the same direction. A plurality of grab rods 51 for facilitating the gripping of the external mechanical hand are fixedly arranged on the upper end of the rectangular frame 36. The rectangular frame 36 can be directly fixed on the material rack 2 through the hooks 48 on the rectangular frame 36, and the installation and movement of the rectangular frame 36 are relatively convenient. A plurality of support rods 50 supporting the above-mentioned hanging rods 47 are fixedly arranged on the upper end of the material rack 2, the above-mentioned hanging rods 47 are inserted into the support rods 50, the support rods 50 correspond to the hanging rods 47 one by one, and the support rods 50 gradually incline towards the hanging rods 47 from bottom to top. The hanging rods 47 are supported by the support rods 50, which effectively improves the overall structural strength of the material rack 2 and avoids the bending of the hanging rods 47 after long-term use.

[0047] Figure 19 is a schematic structural view of a freeze-drying tray rack of a freeze-drying material conveying system according to another embodiment of the present application. Refer to Figures 11 to 13 and Figure 19For example, two supports 56 are arranged on the two sides of the outer wall of the rectangular frame 36, and similar to the above-mentioned rectangular frame 36, a plurality of support plates 37 for placing the trays are fixedly arranged on the two sides of the inner wall of each support 56, for example, uniformly distributed along the height direction of the support 56. The trays can be placed on two support plates in the same horizontal plane, and a baffle 39 is fixedly arranged between the two support plates in the same horizontal plane away from the support 56. During feeding, the tray as described above is fed onto the plurality of support plates 37, and the locking block on the tray is locked with the locking pin on the baffle 39 to lock the tray in the support 56, thereby increasing the volume of the tray rack for storing the trays, and greatly improving the feeding and conveying efficiency of the material. Those skilled in the art can understand that, according to the freeze-dried tray rack shown in the drawings, the rectangular frame 36 between the two supports 56 can also store and lock the corresponding tray as described above. Figure 19

[0048] According to the freeze-dried material conveying system of the present application, when the system is running, the tray 38 carrying the material to be processed is moved forward from the feeding end of the tray conveying device 1 to the driving plate 10 above the first guide plate 7 of the tray feeding device 4 through the driving of the roller 103. The claws 8 on both sides of the driving plate are inserted into the first gap 102 between adjacent rollers and can hold the bottom of the tray. The first driving mechanism 9 of the tray feeding device 4 lifts the first guide plate integrated with the driving plate to the height of the corresponding level of the tray rack 2, and then the second driving mechanism 13 transfers the tray 38 conveyed to the driving plate to the freeze-dried tray rack 2 and locks the tray in the tray rack by using the locking block on the tray and the locking pin on the baffle 39 of the tray rack. The adjacent trays can also be locked with each other by the locking block and the locking pin, thereby avoiding the falling of the trays due to the shaking of the tray rack during the movement of the tray rack.

[0049] The above-described specific embodiments are only illustrative of the spirit of the present application. Those skilled in the art of the present application can make various modifications or supplements to the described specific embodiments or use similar ways to replace them, but these changes and changes are within the spirit of the present application or the scope defined by the appended claims.​

Claims

1. A freeze-drying material conveying system for automatically conveying a material-carrying tray to a freeze-drying tray rack, the system comprising: a tray conveying device comprising a conveying frame and a plurality of rollers evenly distributed along the length of the conveying frame, first gaps being provided between adjacent rollers; a tray loading device comprising a fixed frame, a first driving part and a second driving part provided on the fixed frame, wherein the first driving part comprises a first guide plate mounted on the fixed frame and a first driving mechanism for driving the first guide plate to perform lifting action, and the second driving part comprises a driving plate integrally provided with the first guide plate and a second driving mechanism provided inside the driving plate, the second driving mechanism being used to transfer the tray conveyed from the tray conveying device to the driving plate to the freeze-drying tray rack, both sides of the driving plate being provided with a claw for supporting the tray, and an upper end of the driving plate being provided with a first cavity extending along the length thereof, a first transmission belt being movably provided in the first cavity, the first transmission belt being driven by the second driving mechanism, an upper end surface of the first transmission belt being flush with an upper end surface of the claw, and a lifting mechanism for lifting the first transmission belt being provided in the first cavity, the lifting mechanism comprising second guide plates provided on both sides of both ends of the first transmission belt, two guide grooves penetrating the side of the driving plate, and a second rotating shaft and a second roller movably provided in the two guide grooves and sleeved on the second rotating shaft, the second rotating shaft and the second roller being located in the first transmission belt and at the upper end of the inner wall of the first transmission belt, and a guide slope for guiding the upward movement of the second rotating shaft being provided on the second guide plate; the freeze-drying tray rack comprising a material rack, a rectangular frame clamped on the material rack, and a plurality of support plates provided on the inner wall of the rectangular frame for placing the tray, one end of the support plate being provided with a locking device for locking the tray on the support plate.

2. The lyophilized material delivery system of claim 1, wherein, a third rotating shaft parallel to the guide groove is rotatably provided on the driving plate, and a third motor for driving the third rotating shaft to rotate is provided, the third rotating shaft drives the second guide plate to move through a pull rope, and the second rotating shaft and the second roller move upward along the guide groove through the guide slope on the second guide plate, thereby completing the lifting of the first transmission belt.

3. The lyophilized material delivery system of claim 1, wherein, the plurality of support plates are evenly distributed in the rectangular frame along the height direction of the rectangular frame, the length direction of the support plate is parallel to the length direction of the material rack, the tray is arranged on two support plates located on the same horizontal plane, a baffle is fixedly provided between the ends of the two support plates located on the same horizontal plane and away from the rectangular frame, and a locking block is provided on the tray for fixing the tray on the baffle and fixing adjacent two trays.

4. The lyophilized material delivery system of claim 3, wherein, The locking block is internally provided with a second cavity, the sidewall of the tray is provided with a channel penetrating the sidewall and communicating with the second cavity in the locking block, the diameter of the cavity gradually decreases in the direction of the channel, the baffle is fixedly provided with a locking pin for being inserted into the channel of the locking block, and the side of the tray facing the adjacent tray is fixedly provided with a locking pin for being inserted into the channel of the locking block of the adjacent tray.

5. The lyophilized material delivery system of claim 4, wherein A plurality of steel balls for locking the locking pin are arranged in the second cavity, a partition plate is movably arranged in the second cavity, the steel balls are located between the partition plate and the channel in the second cavity, the partition plate is made of metal, a spring for driving the partition plate to move towards the channel is arranged in the second cavity, and the spring is located between the partition plate and the side of the second cavity away from the channel.

6. The lyophilized material delivery system of claim 1, wherein, Two hanging rods extending towards the center of the upper end surface of the tray rack are fixedly arranged on both sides of the upper end of the tray rack along the length direction of the tray rack, a gap is left between the hanging rods on both sides of the upper end of the tray rack, a plurality of hooks for being hung on the hanging rods are fixedly arranged on the upper end of the rectangular frame, and the hooks and the hanging rods one-to-one correspond.

7. The lyophilized material delivery system of claim 1, wherein A plurality of holding rods for being held by an external mechanical hand are fixedly arranged on the upper end of the rectangular frame.

8. The lyophilized material delivery system of claim 1, wherein, Two supports are arranged on both sides of the outer wall of the rectangular frame, and the support plate and the locking device are arranged in the supports for accommodating and locking the tray.

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