Liquid low-temperature freezing vacuum drying material grinding device

Abstract

The utility model relates to the technical field of grinding devices, and discloses a liquid low-temperature freezing vacuum drying material grinding device which comprises a base and further comprises a box body and a dismounting assembly, the dismounting assembly is arranged at the top of the base, the box body is fixedly connected to the top of the base, a supporting plate is fixedly connected to the interior of the box body, and the supporting plate is fixedly connected to the bottom of the base. A rotating support is rotationally connected into the supporting plate, a limiting frame is fixedly connected into the box body, and a toothed plate is slidably connected into the limiting frame. Through extrusion and shearing effects of the ratchet wheel and the filter screen, along with left-right rotation of the ratchet wheel, shearing force enables materials to be dispersed and crushed, so that particles meeting requirements are formed and fall through the filter screen, and therefore, the feeding device is simple in structure, convenient to operate, disassemble and clean, adjustable in rotating speed and controllable in particle size; the material character, flavor and material structure are not changed, and the method is particularly suitable for grinding and processing heat-sensitive freeze-dried materials.

Description

Technical Field

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

[0002] Liquid cryogenic vacuum dried materials refer to water-containing materials processed by vacuum freeze-drying technology. This technology is widely used in many fields such as food, pharmaceuticals, and biological products. It is favored because it can effectively maintain the quality of materials, such as nutritional components, color, flavor, and structure. A liquid cryogenic vacuum dried material grinding device is a processing device for grinding the product of liquid cryogenic vacuum drying.

[0003] In existing technologies, the grinding of liquid cryogenic vacuum dried materials relies on either manual grinding or high-speed rotary pulverization. Manual grinding involves using a mortar and pestle, grinding rods, and sieves. The material is added to the mortar and pestle and ground with the grinding rods, then sieved to obtain the desired fineness. This method cannot completely eliminate product contamination and poses safety hazards. High-speed rotary pulverization, on the other hand, involves starting a high-speed pulverizer, adding the material to the hopper, and then pulverizing it into powder of the desired fineness under the high-speed rotation of the driven shaft and metal hammers. While liquid materials containing active substances, texture, flavor compounds, color, and nutrients are typically produced using a low-temperature freeze-drying process, the high-speed rotation and the action of the metal hammer cause the temperature of both the machine and the material to rise. This results in varying degrees of damage to the active substances, texture, flavor compounds, color, and nutrients in the pulverized material. The high-speed rotation pulverization method also damages the porosity, crystallinity, solubility, rehydration, and restitution properties of the material, altering its characteristics. Therefore, it is necessary to develop an improved liquid low-temperature freeze-drying material grinding device to address these issues. Utility Model Content

[0004] To overcome the problem that manual grinding has low production efficiency, high-speed rotary pulverization destroys the porosity, crystallinity, solubility, rehydration and restitution properties of materials, thus altering the material's properties.

[0005] The technical solution of this utility model is as follows: a liquid low-temperature freeze-drying and vacuum drying material grinding device, including a base, a housing and a disassembly assembly. The disassembly assembly is provided on the housing. The housing is fixedly connected to the top of the base. A support plate is fixedly connected inside the housing. A rotating bracket is rotatably connected inside the support plate. A limit frame is fixedly connected inside the housing. A toothed plate is slidably connected inside the limit frame. An O-frame is fixedly connected to the right end of the toothed plate. A sliding block is slidably connected inside the O-frame. The rotating bracket is rotatably connected inside the sliding block. A feeding hopper is fixedly connected to the left end of the housing. One end of an optical shaft passes through the feeding hopper and the housing. A gear is fixedly connected to the other end of the optical shaft. The gear meshes with the toothed plate. A limit strip is fixedly connected to the outside of the optical shaft. A ratchet is provided outside the optical shaft and the limit strip. The ratchet is rotatably connected inside the feeding hopper. The rotating bracket rotates, causing it to drive the ratchet to reciprocate.

[0006] Preferably, the limiting frame has a groove at the corresponding position of the toothed plate, and the toothed plate slides in the groove.

[0007] Preferably, the O-shaped frame has a groove at the corresponding position of the sliding block, and the sliding block slides in the groove.

[0008] Preferably, the ratchet has grooves at corresponding positions on the optical axis and the limiting strip, and the ratchet is located outside the optical axis and the limiting strip.

[0009] Preferably, a motor is fixedly connected inside the housing, a first conveyor roller is fixedly connected to the output shaft of the motor, a fixed plate is fixedly connected inside the housing, a reducer is fixedly connected to the top of the fixed plate, a second conveyor roller is fixedly connected to the input shaft of the reducer, a first conveyor belt is connected between the second conveyor roller and the first conveyor roller, a third conveyor roller is fixedly connected to the output shaft of the reducer, a fourth conveyor roller is fixedly connected to the outside of the rotating bracket, and a second conveyor belt is connected between the fourth conveyor roller and the third conveyor roller.

[0010] Preferably, the assembly includes a collection frame located outside the feeding hopper. A first bolt is rotatably connected inside the collection frame and threaded into the feeding hopper. An end cap is located inside the feeding hopper, and a second bolt is rotatably connected inside the end cap and threaded into the feeding hopper. A limit rod is located inside the feeding hopper, and a threaded rod is fixedly connected to the right end of the limit rod and threaded into the feeding hopper. A filter screen is located inside the limit rod, and a handwheel is fixedly connected to the left end of the limit rod.

[0011] Preferably, the limiting rod and the threaded rod have grooves at corresponding positions on the filter screen, the filter screen is placed in the grooves, and the feeding hopper has matching internal threads at corresponding positions on the threaded rod.

[0012] The beneficial effects of this invention are as follows: Compared with manual grinding and high-speed rotary pulverization, this invention utilizes the squeezing and shearing action of a ratchet and a filter screen. As the ratchet rotates left and right, the shearing force disperses and breaks down the material, forming particles that meet the requirements. These particles then fall through the filter screen, resulting in a simple structure, convenient operation, easy disassembly and cleaning, adjustable speed, and controllable particle size. Furthermore, because the material continuously tumbles within the hopper, its properties, flavor, and material structure remain unchanged. This invention is particularly suitable for grinding heat-sensitive freeze-dried materials, avoiding the problems of low production efficiency associated with manual grinding and the damage to the porosity, crystallinity, solubility, rehydration, and restitution properties of materials caused by high-speed rotary pulverization. Attached Figure Description

[0013] Figure 1 This is a perspective view of the present utility model;

[0014] Figure 2 This is a sectional view of the housing of this utility model;

[0015] Figure 3 This is a cross-sectional view of the feeding hopper of this utility model;

[0016] Figure 4 This is a perspective view of the disassembly and assembly components of this utility model;

[0017] Figure 5 This is a three-dimensional view of the filter screen of this utility model;

[0018] Figure 6 This is a perspective view of the limiting rod of this utility model.

[0019] Explanation of reference numerals in the attached drawings: 1. Base; 21. Housing; 22. Motor; 23. First conveyor roller; 24. Fixing plate; 25. Reducer; 26. Second conveyor roller; 27. First conveyor belt; 28. Third conveyor roller; 29. ​​Limiting frame; 210. Toothed plate; 211. O-ring; 212. Sliding block; 213. Rotating bracket; 214. Fourth conveyor roller; 215. Second conveyor belt; 216. Optical shaft; 217. Gear; 218. Limiting strip; 219. Feeding hopper; 220. Ratchet; 221. Support plate; 31. Collection frame; 32. First bolt; 33. End cap; 34. Second bolt; 35. Limiting rod; 36. Threaded rod; 37. Filter screen; 38. Handwheel. Detailed Implementation

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0021] Please see Figure 1 - Figure 6This utility model provides an embodiment: a liquid low-temperature freeze-drying and vacuum drying material grinding device, including a base 1, a housing 21, and a disassembly assembly. The housing 21 is provided with the disassembly assembly. The housing 21 is fixedly connected to the top of the base 1. A support plate 221 is fixedly connected inside the housing 21. A rotating bracket 213 is rotatably connected inside the support plate 221. A limit frame 29 is fixedly connected inside the housing 21. A toothed plate 210 is slidably connected inside the limit frame 29. An O-frame 211 is fixedly connected to the right end of the housing 21. A sliding block 212 is slidably connected inside the O-frame 211. A rotating bracket 213 is rotatably connected inside the sliding block 212. A feeding hopper 219 is fixedly connected to the left end of the housing 21. One end of the optical shaft 216 passes through the feeding hopper 219 and the housing 21. A gear 217 is fixedly connected to the other end of the optical shaft 216. The gear 217 meshes with the gear plate 210. A limit strip 218 is fixedly connected to the outside of the optical shaft 216. A ratchet 220 is provided on the outside of the 6 and the limiting strip 218. The ratchet 220 is rotatably connected to the inside of the feeding hopper 219. The rotating bracket 213 rotates, causing it to drive the ratchet 220 to reciprocate. This causes the rotating bracket 213 to rotate inside the support plate 221. By driving the rotating bracket 213 to rotate, it causes the sliding block 212 to slide inside the O-shaped frame 211. This causes the toothed plate 210 to reciprocate inside the limiting frame 29. This is achieved through the gear 217. The toothed plate 210 engages with the toothed plate 210, causing the optical shaft 216 to reciprocate. The limiting strip 218, which is fixedly connected to the outside of the optical shaft 216, causes the ratchet 220 to reciprocate left and right. The assembly and disassembly make it convenient to disassemble and clean the ratchet 220 and the filter screen 37, thereby improving cleaning efficiency. The limiting frame 29 has a groove at the corresponding position of the toothed plate 210, and the toothed plate 210 slides in the groove to limit the toothed plate 210 and improve the stability of the reciprocating rotation.

[0022] Please see Figure 1 - Figure 3In this embodiment, the O-frame 211 has a groove at the corresponding position of the sliding block 212. The sliding block 212 slides in the groove, which limits the sliding block 212 and improves stability. The ratchet 220 has a groove at the corresponding position of the optical shaft 216 and the limiting strip 218. The ratchet 220 is located outside the optical shaft 216 and the limiting strip 218, so that when the ratchet 220 is disassembled and installed, it can be inserted into the outside of the optical shaft 216 and the limiting strip 218, thus improving stability. The motor 22 is fixedly connected inside the housing 21. The output shaft of the motor 22 is fixedly connected to the outside of the first conveying roller 23. The fixing plate 24 is fixedly connected inside the housing 21. A reducer 25 is fixedly connected to the top of the 4. A second conveyor roller 26 is fixedly connected to the outside of the input shaft of the reducer 25. A first conveyor belt 27 is connected between the second conveyor roller 26 and the first conveyor roller 23. A third conveyor roller 28 is fixedly connected to the outside of the output shaft of the reducer 25. A fourth conveyor roller 214 is fixedly connected to the outside of the rotating bracket 213. A second conveyor belt 215 is connected between the fourth conveyor roller 214 and the third conveyor roller 28. This makes the structure simple, easy to operate, easy to disassemble and easy to clean. The speed is adjustable and the particle size is controllable. At the same time, since the material is constantly tumbling in the feeding hopper 219, it will not change the material properties, flavor and material structure. It is particularly suitable for grinding and processing heat-sensitive freeze-dried materials.

[0023] Please see Figure 4 - Figure 6 In this embodiment, the disassembly and assembly assembly includes a collection frame 31, which is disposed outside the feeding hopper 219. A first bolt 32 is rotatably connected inside the collection frame 31 and threadedly connected to the inside of the feeding hopper 219. An end cap 33 is disposed inside the feeding hopper 219, and a second bolt 34 is rotatably connected inside the end cap 33 and threadedly connected to the inside of the feeding hopper 219. A limit rod 35 is disposed inside the feeding hopper 219, and a threaded rod 36 is fixedly connected to the right end of the limit rod 35 and threadedly connected to the inside of the feeding hopper 219. A filter screen 37 is disposed inside the limit rod 35. A handwheel 38 is fixedly connected to the left end of the positioning rod 35, making it convenient to disassemble and clean the ratchet 220 and the filter screen 37, thereby improving cleaning efficiency. The positioning rod 35 and the threaded rod 36 have grooves at the corresponding positions of the filter screen 37, and the filter screen 37 is placed in the groove. The feeding hopper 219 has a matching internal thread at the corresponding position of the threaded rod 36, so that when installing the filter screen 37, the threaded rod 36 is threaded into the inside of the feeding hopper 219 by the handwheel 38. The operator then wraps the filter screen 37 around the positioning rod 35 once to fix the filter screen 37, so that the filter screen 37 tightly wraps around the ratchet 220.

[0024] During operation, the motor 22 is started to drive the first conveyor roller 23 to rotate, which in turn drives the input end of the reducer 25 to rotate via the first conveyor belt 27. The output end of the reducer 25 then drives the third conveyor roller 28 to rotate, and the second conveyor belt 215 drives the fourth conveyor roller 214 to rotate. This causes the rotating bracket 213 to rotate inside the support plate 221. The rotation of the rotating bracket 213 causes the sliding block 212 to move in a circular motion. The sliding block 212 is rotatably connected to the rotating bracket 213, thus simultaneously sliding vertically back and forth inside the O-frame 211. The O-frame 211 and the toothed plate 210 are fixedly connected, and the sliding block 21 drives... While the O-frame 211 slides horizontally back and forth, it drives the toothed plate 210 to slide horizontally back and forth inside the limiting frame 29. The gear 217 meshes with the toothed plate 210, causing the optical shaft 216 to rotate back and forth inside the feeding hopper 219 and the housing 21. The limiting strip 218, fixedly connected to the outside of the optical shaft 216, drives the ratchet 220 to rotate left and right, causing the material to continuously tumble and move between the ratchet 220 and the filter screen 37. The freeze-dried block material to be ground is added to the feeding hopper 219. The material is evenly fed into the space between the ratchet 220 and the filter screen 37 by the rotating ratchet 220 within the feeding hopper 219. 7. Extrusion and shearing action: As the ratchet 220 rotates left and right, the shearing force disperses and breaks the material, forming particles that meet the requirements. These particles then fall through the filter screen 37. The device speed can be adjusted as needed, and the particle size can be adjusted by changing the screen. The collecting frame 31 guides the falling particles that meet the requirements. When the machine needs to be cleaned or disassembled, the first bolt 32 is turned to remove the collecting frame 31, and the second bolt 34 is turned to remove the end cover 33. Then, the ratchet 220, which is installed outside the optical shaft 216 and the limiting strip 218, is slid out from inside the feeding hopper 219, allowing for disassembly of the ratchet 220. The filter screen... When replacing filter screen 37, turn handwheel 38 to unscrew threaded rod 36 from inside hopper 219. Then, pull filter screen 37 out of the grooves of limiting rod 35 and threaded rod 36. Insert filter screen 37 of different particle sizes into the grooves of limiting rod 35 and threaded rod 36 as needed. The operator pulls the excess filter screen 37 out of the groove to make it contact ratchet 220. Use handwheel 38 to thread threaded rod 36 into inside hopper 219. The operator then wraps filter screen 37 around limiting rod 35 once to fix filter screen 37, so that filter screen 37 tightly wraps around ratchet 220, thus completing the installation of filter screen 37.

[0025] Through the above steps, the ratchet 220 and the filter screen 37 squeeze and shear each other. As the ratchet 220 rotates left and right, the shearing force disperses and breaks the material, thus forming particles that meet the requirements and fall through the filter screen 37. This solves the problems that manual grinding is not only inefficient and unsuitable for mass production, but also that high-speed rotary crushing destroys the porosity, crystallinity, solubility, rehydration and recovery properties of the material, thus changing the material properties.

Claims

1. A liquid cryogenic freeze-drying material grinding device, comprising a base (1), characterized in that: It also includes a housing (21) and a disassembly assembly. The disassembly assembly is provided on the housing (21). The housing (21) is fixedly connected to the top of the base (1). A support plate (221) is fixedly connected inside the housing (21). A rotating bracket (213) is rotatably connected inside the support plate (221). A limit frame (29) is fixedly connected inside the housing (21). A toothed plate (210) is slidably connected inside the limit frame (29). An O-frame (211) is fixedly connected to the right end of the toothed plate (210). A sliding block (212) is slidably connected inside the O-frame (211). The rotating bracket (213) is rotatably connected to the sliding block. Inside (212), a feeding hopper (219) is fixedly connected to the left end of the box (21). One end of the optical shaft (216) passes through the feeding hopper (219) and the box (21). The other end of the optical shaft (216) is fixedly connected to a gear (217). The gear (217) meshes with the toothed plate (210). A limiting strip (218) is fixedly connected to the outside of the optical shaft (216). A ratchet (220) is provided on the outside of the optical shaft (216) and the limiting strip (218). The ratchet (220) is rotatably connected inside the feeding hopper (219). The rotating bracket (213) rotates, causing it to drive the ratchet (220) to reciprocate.

2. The liquid cryogenic freeze-drying and grinding device according to claim 1, characterized in that: The limiting frame (29) has a groove at the corresponding position of the toothed plate (210), and the toothed plate (210) slides in the groove.

3. The liquid low-temperature freeze-drying and vacuum drying material grinding device according to claim 1, characterized in that: The O-shaped frame (211) has a groove at the corresponding position of the sliding block (212), and the sliding block (212) slides in the groove.

4. The liquid cryogenic freeze-drying and grinding device according to claim 1, characterized in that: The ratchet (220) has grooves at corresponding positions on the optical axis (216) and the limiting bar (218), and the ratchet (220) is located outside the optical axis (216) and the limiting bar (218).

5. The liquid cryogenic freeze-drying and grinding device according to claim 1, characterized in that: A motor (22) is fixedly connected inside the housing (21). A first conveyor roller (23) is fixedly connected to the output shaft of the motor (22). A fixed plate (24) is fixedly connected inside the housing (21). A reducer (25) is fixedly connected to the top of the fixed plate (24). A second conveyor roller (26) is fixedly connected to the input shaft of the reducer (25). A first conveyor belt (27) is connected between the second conveyor roller (26) and the first conveyor roller (23). A third conveyor roller (28) is fixedly connected to the output shaft of the reducer (25). A fourth conveyor roller (214) is fixedly connected to the outside of the rotating bracket (213). A second conveyor belt (215) is connected between the fourth conveyor roller (214) and the third conveyor roller (28).

6. The liquid cryogenic freeze-drying material grinding device according to claim 1, characterized in that: The assembly includes a collection frame (31), which is located outside the feeding hopper (219). A first bolt (32) is rotatably connected inside the collection frame (31). The first bolt (32) is threadedly connected inside the feeding hopper (219). An end cap (33) is provided inside the feeding hopper (219). A second bolt (34) is rotatably connected inside the end cap (33). The second bolt (34) is threadedly connected inside the feeding hopper (219). A limit rod (35) is provided inside the feeding hopper (219). A threaded rod (36) is fixedly connected to the right end of the limit rod (35). The threaded rod (36) is threadedly connected inside the feeding hopper (219). A filter screen (37) is provided inside the limit rod (35). A handwheel (38) is fixedly connected to the left end of the limit rod (35).

7. The liquid cryogenic freeze-drying material grinding device according to claim 6, characterized in that: The limiting rod (35) and the threaded rod (36) have grooves at corresponding positions on the filter screen (37), the filter screen (37) is placed in the groove, and the feeding hopper (219) has a matching internal thread at the corresponding position on the threaded rod (36).

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