CN108029926B

CN108029926B - Freeze dryer capable of packaging cordyceps sinensis

Info

Publication number: CN108029926B
Application number: CN201711266665.7A
Authority: CN
Inventors: 罗成喜
Original assignee: Individual
Current assignee: Individual
Priority date: 2017-12-05
Filing date: 2017-12-05
Publication date: 2021-04-06
Anticipated expiration: 2037-12-05
Also published as: CN108029926A

Abstract

The invention relates to a freeze dryer capable of packaging cordyceps sinensis, which comprises a case, wherein a first transverse partition plate, a second transverse partition plate, a third transverse partition plate and a first vertical partition plate are arranged in the case; the first diaphragm plate, the second diaphragm plate, the third diaphragm plate, the first vertical diaphragm plate and the inner wall of the case can enclose a control chamber, a refrigeration chamber, a vacuum chamber, a freeze-drying chamber and an encapsulation chamber. The freeze-drying chamber and the packaging chamber are independent closed spaces with heat preservation and insulation functions. The freeze-drying chamber and the encapsulation chamber of freeze dryer all pass through the vacuum tube and all are connected with the vacuum pump, therefore freeze-drying chamber and real empty room all can be in the state of vacuum, and the chinese caterpillar fungus is at the indoor freeze-drying back of freeze-drying, by the blown down tank from freeze-drying chamber introduction encapsulation room, carry out the filling and seal in the encapsulation room. Therefore, the cordyceps does not need to be taken out of the freeze-drying chamber and then transferred to a packaging room for packaging, the cordyceps is always in a vacuum state from the drying to the packaging, the cordyceps does not have the opportunity to absorb moisture in the air, and the cordyceps can be stored for a longer time without mildewing.

Description

Freeze dryer capable of packaging cordyceps sinensis

Technical Field

The invention belongs to the technical field of cordyceps sinensis freeze-drying, and particularly relates to a freeze-dryer capable of packaging cordyceps sinensis.

Background

After the fresh cordyceps is picked, it needs to be stored, and it is usually lyophilized. The freeze-dried substance has little change of physical structure and molecular structure, and the appearance and shape of the freeze-dried substance are well preserved, so that the freeze-drying can greatly keep the nutrition and effective components of the cordyceps. The freeze-dried cordyceps sinensis is almost unchanged in shape and size, and a porous sponge is formed in the freeze-dried cordyceps sinensis, so that the freeze-dried cordyceps sinensis has excellent rehydration property and can be restored to a state before drying in a short time, and therefore, consumers tend to purchase the freeze-dried cordyceps sinensis at present.

Lyophilization is a technique that utilizes the principle of sublimation for drying. The method is characterized in that a dried substance is rapidly frozen at a low temperature, and then frozen water molecules are directly sublimated to be water vapor to escape under a proper vacuum environment. The equipment for freeze-drying is called the freeze dryer, and the main part of freeze dryer is freeze-drying chamber 2, vacuum pump 6, control room 4 etc. at present, and freeze-drying chamber 2 is used for placing the article that need freeze-drying, and vacuum pump 6 can make freeze-drying chamber 2 be in the state of vacuum (1.3 ~ 13 handkerchief), and control cabinet 4 is used for controlling the operating condition of freeze dryer.

At present, the process of freeze-drying the cordyceps sinensis comprises the steps of putting fresh cordyceps sinensis into a low-temperature refrigerator to completely freeze and fruit the cordyceps sinensis; placing the frozen cordyceps sinensis into a freeze-drying chamber, and starting a freeze dryer; and finally, after the freeze-drying is finished, closing the freeze dryer, taking out the freeze-dried cordyceps sinensis, and conveying the cordyceps sinensis to a packaging workshop. Because the freeze-dried cordyceps sinensis can absorb moisture in the air in the process of transferring the freeze-dried cordyceps sinensis to a packaging workshop, the moisture content of the freeze-dried cordyceps sinensis is increased, if the freeze-dried cordyceps sinensis is placed for a long time, the cordyceps sinensis can be damped and softened, and the cordyceps sinensis is easy to mildew or moth-eaten during storage, so that drying agents such as dried pepper and dried cortex moutan need to be placed in a packaging bag.

Disclosure of Invention

The application provides a freeze dryer capable of packaging cordyceps to solve the problem that the conventional freeze-dried cordyceps cannot be packaged in the freeze dryer.

A freeze dryer capable of packaging cordyceps comprises a case, wherein a partition plate is arranged in the case, and comprises a first transverse partition plate, a second transverse partition plate, a third transverse partition plate and a first vertical partition plate;

the first transverse partition plate and the second transverse partition plate are sequentially arranged between the left wall of the first vertical partition plate and the inner wall of the case from top to bottom;

the first transverse partition plate, the first vertical partition plate and the inner wall of the case enclose a control chamber, the first transverse partition plate, the second transverse partition plate, the first vertical partition plate and the case enclose a refrigeration chamber, the second transverse partition plate, the first vertical partition plate and the case enclose a vacuum chamber, the refrigeration chamber is arranged above the vacuum chamber, and the control chamber is arranged above the refrigeration chamber;

the third transverse partition plate is arranged between the right wall of the first vertical partition plate and the inner wall of the case, a freeze-drying chamber and a packaging chamber are defined by the first vertical partition plate, the inner wall of the case and the third transverse partition plate, and the freeze-drying chamber is arranged above the packaging chamber;

the vacuum chamber is provided with a vacuum pump and a vacuum tube, the vacuum tube comprises a first vacuum valve and a second vacuum valve, the vacuum tube is a three-way tube, and three interfaces of the three-way tube are respectively connected with the freeze-drying chamber, the packaging chamber and the vacuum pump;

the encapsulation room is provided with sealing equipment and charging equipment, charging equipment is located sealing equipment's top, the freeze-drying room is provided with observation window, freeze-drying frame and blown down tank, the blown down tank forms the angle of inclination with the horizontal plane, the blown down tank passes the third cross slab, blown down tank one end is located freeze-drying frame's below, the blown down tank other end is located charging equipment's top.

Preferably, the freeze-drying rack comprises a belt wheel, a rotating belt and a heater, the rotating belt is sleeved on the outer surface of the belt wheel, and the heater is arranged inside the rotating belt.

Preferably, the sealing device comprises a support frame, a discharging device, a rotating device and a sealing device, the upper surface of the support frame is movably connected with the sealing device, the lower surface of the support frame is fixedly connected with the rotating device, the outer surface of the packaging chamber is provided with a through hole, and the discharging device is matched with the through hole;

the sealing device comprises a sealing plate and a rotating frame, one end of the rotating frame is rotatably connected to the supporting frame, the other end of the rotating frame is rotatably connected with the sealing plate, and a heating wire is arranged on the sealing plate;

the rotating equipment comprises a first gear belt, a second gear belt, a packaging bag clamp and a second gear, the first gear belt is fixedly connected to the lower surface of the supporting frame, the second gear belt is arranged on the inner side of the first gear belt, the circumference of the second gear belt is smaller than that of the first gear belt, the second gear is arranged on the inner side of the second gear belt, and the second gear is meshed with the second gear belt;

the packaging bag presss from both sides and includes clamping part, connecting axle and first gear, the one end fixed connection of connecting axle the clamping part, the other end of connecting axle rotates and connects first gear, the clamping part with the connecting axle is perpendicular, first gear is located first gear area with between the second gear area, first gear with first gear area meshing, first gear with second gear area meshing.

Preferably, the charging equipment comprises a material stopping plate, a charging clamp and a hopper, wherein the material stopping plate is arranged in the hopper, the hopper is arranged below the discharging groove, the lower end of the hopper is connected with the charging clamp, the charging clamp comprises a rotator and a clamp body, and the clamp body rotates around the rotator.

Preferably, the sealing equipment further comprises a cavity, the cavity comprises an upper cover and a rotating shaft, the upper cover vertically rotates around the axial direction of the rotating shaft, the discharging device is a uncovered box body, the size of the cavity is matched with that of the uncovered box body, one side of the cavity without a front panel is connected with the through hole, and the uncovered box body extends into the cavity from the through hole.

According to the technical scheme, the freeze-drying chamber and the packaging chamber of the freeze dryer are connected with the vacuum pump through the vacuum tube, so that the freeze-drying chamber and the vacuum chamber are in a vacuum state, the cordyceps sinensis is freeze-dried in the freeze-drying chamber, then is guided into the packaging chamber from the freeze-drying chamber through the discharge chute, and is filled and sealed in the packaging chamber. Therefore, the cordyceps does not need to be taken out of the freeze-drying chamber and then transferred to a packaging room for packaging, the cordyceps is always in a vacuum state from the drying to the packaging, the cordyceps does not have the opportunity to absorb moisture in the air, and the cordyceps can be stored for a longer time without mildewing.

Drawings

FIG. 1 is a schematic diagram of a conventional freeze dryer;

FIG. 2 is a schematic diagram of the structure of the freeze dryer of the present invention;

FIG. 3 is a schematic view of a case structure according to the present invention;

FIG. 4 is a schematic view of the freeze drying rack of the present invention;

FIG. 5 is a schematic structural diagram of a packaging apparatus according to the present invention;

FIG. 6 is a schematic view of the construction of the sealer of the present invention;

FIG. 7 is a schematic view of the loader of the present invention;

FIG. 8 is a schematic structural view of a discharging device according to the present invention;

fig. 9 is a schematic view of the structure of the bag clip of the present invention.

Wherein: 1-case, 11-partition board, 111-first transverse partition board, 112-second transverse partition board, 113-third transverse partition board, 114-first vertical partition board; 2-freeze drying chamber, 21-observation window, 22-freeze drying rack, 221-belt wheel, 222-rotating belt, 223-heater, 23-discharge chute; 3-packaging chamber, 31-sealing device, 311-holding frame, 312-discharging device, 3121-uncovered box, 313-driving device, 3131-first toothed belt, 3132-second toothed belt, 3133-packaging bag clamp, 31331-clamping portion, 31332-connecting shaft, 31333-first toothed wheel, 3134-second toothed wheel, 314-sealer, 3141-sealing plate, 3142-rotating frame, 3143-heating wire, 315-cavity, 3151-upper cover, 3152-rotating shaft, 316-through hole, 32-charging device, 321-stopping plate, 322-charging clamp, 3221-rotating device, 3222-clamping body, 323-hopper; 4-control room, 41-control screen; 5-refrigerating chamber, 51-refrigerating equipment, 52-condenser pipe; 6-vacuum chamber, 61-vacuum pump, 62-vacuum tube, 621-first vacuum valve, 622-second vacuum valve; 7-packaging the bag.

Detailed Description

The technical solutions in the embodiments shown in the present application will be clearly and completely described below with reference to the drawings in the embodiments shown in the present application.

The active ingredients of the cordyceps sinensis belong to volatile substances, are extremely unstable and are easy to volatilize and oxidize along with the air drying of moisture, and the loss rate of the active ingredients is as high as 60 percent, so that the precious essence substances are lost and the people are easy to be pitted. The cordyceps sinensis is remote in production place, inconvenient to transport and easy to lose moisture in the transportation process, and except that the Tibetan people can eat fresh cordyceps sinensis, people in other areas see and eat dry cordyceps sinensis basically. Therefore, a drying apparatus is required to dry the same.

Referring to fig. 2 and fig. 3, a freeze dryer capable of packaging cordyceps sinensis comprises a cabinet 1, wherein a partition plate 11 is arranged in the cabinet 1, and the partition plate 11 comprises a first transverse partition plate 111, a second transverse partition plate 112, a third transverse partition plate 113 and a first vertical partition plate 114; the first transverse partition plate 111 and the second transverse partition plate 112 are sequentially arranged between the left wall of the first vertical partition plate 114 and the inner wall of the case 1 from top to bottom; the first transverse partition plate 111, the first vertical partition plate 114 and the inner wall of the case 1 enclose a control chamber 4, the first transverse partition plate 111, the second transverse partition plate 112, the first vertical partition plate 114 and the case 1 enclose a refrigeration chamber 5, the second transverse partition plate 112, the first vertical partition plate 114 and the case 1 enclose a vacuum chamber 6, the refrigeration chamber 5 is arranged above the vacuum chamber 6, and the control chamber 4 is arranged above the refrigeration chamber 5; the third diaphragm plate 113 is arranged between the right wall of the first vertical diaphragm plate 114 and the inner wall of the case 1, the freeze-drying chamber 2 and the packaging chamber 3 are enclosed by the first vertical diaphragm plate 114, the inner wall of the case 1 and the third diaphragm plate 113, and the freeze-drying chamber 2 is arranged above the packaging chamber 3.

The partition plate 11 divides the case 1 into a plurality of areas, the installation and the placement are convenient, the freeze-drying chamber 2 and the packaging chamber 3 can form an independent closed space respectively, and the partition plate 11 is made of heat-insulating materials, so that the freeze-drying chamber 2 and the packaging chamber 3 have good sealing performance and heat-insulating performance. The partition 11 makes it possible to achieve a mutual noninterference of the lyophilization chamber 2 and the containment chamber 3, in other words a mutual independence of the vacuums of the lyophilization chamber 2 and the containment chamber 3. When the freeze-drying chamber 2 works, the vacuum state is needed so that the cordyceps sinensis can be freeze-dried, the freeze-drying is usually carried out for 12-24h, the packaging chamber 3 can be in a rest state in the period of time, and after the freeze-drying is finished, the packaging chamber 3 is opened, so that the freeze-drying chamber 2 and the packaging chamber 3 work simultaneously in a few cases, the service life of the equipment can be prolonged on the one hand, and on the other hand, the freeze-drying chamber 2 or the packaging chamber 3 can be in the vacuum state quickly, and the working efficiency is improved. In addition, a temperature sensor, a humidity sensor and a vacuum gauge sensor are further arranged in the freeze-drying chamber 2, and the packaging chamber is further provided with the vacuum gauge sensor and an electronic scale.

The control screen 41 is arranged on the outer wall surface of the control chamber 4, and the control screen 41 is used for instructing a microcomputer in the control chamber 4 to send a working state instruction to equipment on the freeze dryer, so that the working state of the equipment on the freeze dryer is controlled.

The refrigeration chamber 5 is provided with refrigeration equipment 51 and a condensation pipe 52, one end of the condensation pipe 52 is connected with the refrigeration equipment 51, and the other end of the condensation pipe 52 is connected with the freeze-drying chamber 2. The eutectic point temperature of the cordyceps is about minus 10 ℃, in order to ensure that the tissues of the cordyceps are not damaged, quick freezing is adopted, the temperature of a freeze-drying chamber 2 is firstly reduced to minus 20 ℃ to minus 40 ℃, then the cordyceps is put into a freeze-drying box, and in order to ensure the freeze-drying state and quality of the cordyceps, a quick refrigeration device 51 is needed.

In the refrigeration equipment 51, the evaporator, the condenser, the compressor and the throttle valve are the four main elements essential in the refrigeration system, among which the evaporator is the equipment for transporting cold for controlling the temperature of the lyophilization chamber 2. The refrigerant absorbs heat from the cooled object therein to perform cooling. The compressor is a heart and functions to suck, compress, and deliver refrigerant vapor. The condenser is a heat-emitting device, which transfers the heat absorbed in the evaporator to a cooling medium together with the heat converted by the compressor. The throttle valve of the evaporator plays the role of throttling and depressurizing the refrigerant and simultaneously controls and regulates the amount of refrigerant liquid flowing into the evaporator, so that the effect of quick refrigeration can be achieved by only controlling the throttle valve.

The vacuum chamber 6 is provided with a vacuum pump 61 and a vacuum tube 62, the vacuum tube 62 comprises a first vacuum valve 621 and a second vacuum valve 622, the vacuum tube 62 is a three-way tube, and three ports of the three-way tube are respectively connected with the freeze-drying chamber 2, the packaging chamber 3 and the vacuum pump 61.

The water has three phases of solid, liquid and gas. According to the phase equilibrium theory in thermodynamics, the freezing point of water does not change much with the decrease of pressure, while the boiling point is lower and lower, and is close to the freezing point. When the pressure is reduced to a certain vacuum degree, the boiling point and the freezing point of water coincide, and ice can be directly vaporized into gas without passing through a liquid state, and the process is called sublimation. The vacuum freeze drying of the cordyceps sinensis is to sublimate and remove the frozen water in the cordyceps sinensis under the condition of low temperature and low pressure, otherwise, the quality and nutrition of the cordyceps sinensis are damaged when the cordyceps sinensis is in a frozen state for a long time.

The vacuum pump 61 is therefore an indispensable device of the freeze dryer, providing the necessary vacuum conditions to create an environment for the sublimation of ice, so that the degree of vacuum directly affects the sublimation rate of the product. The vacuum pump 61 is capable of pumping air inside the lyophilization chamber 2 and the packaging chamber 3, so that the lyophilization chamber 2 and the packaging chamber 3 are in a vacuum condition. Because the cordyceps sinensis is freeze-dried in the freeze-drying chamber 2 for a certain time, the packaging chamber 3 can be in a rest state, the second vacuum valve 622 is closed, and the first vacuum valve 621 is only opened, so that the freeze-drying chamber 2 can reach the required vacuum state faster than the first vacuum valve 621 and the second vacuum valve 622 which are opened simultaneously, and the freeze-drying of the cordyceps sinensis is facilitated. When the enclosure 3 is required to operate, the enclosure 3 can be quickly placed in a vacuum state by opening the second vacuum valve 622. The vacuum degree limit of the freeze-drying chamber 2 and the packaging chamber 3 is below 10Pa, and the quality and the effect of the freeze-dried cordyceps sinensis are better.

Encapsulation room 3 is provided with sealing device 31 and charging apparatus 32, charging apparatus 32 is located sealing device 31's top, freeze-drying room 2 is provided with observation window 21, freeze-drying frame 22 and blown down tank 23, blown down tank 23 forms the angle of inclination with the horizontal plane, blown down tank 23 passes third cross slab 113, blown down tank 23 one end is located freeze-drying frame 22's below, the blown down tank 23 other end is located charging apparatus 32's top.

Referring to fig. 5, the loading device 32 is used for storing the freeze-dried cordyceps sinensis and placing the cordyceps sinensis into the packaging bag 7, the sealing device 31 is provided with a packaging bag clamp 3133 for clamping two sides of the packaging bag 7, after loading, the packaging bag clamp 3133 feeds the packaging bag 7 into the sealing device 314 for sealing, after sealing, the packaging bag clamp 3133 releases the packaging bag 7, and the sealed packaging bag 7 drops into the material inlet and outlet, and can be stored after being taken out.

Referring to fig. 4, the freeze drying rack 22 includes a pulley 221, a rotating belt 222 and a heater 223, the rotating belt 222 is sleeved on an outer surface of the pulley 221, and the heater 223 is disposed inside the rotating belt 222.

The cordyceps sinensis to be freeze-dried is placed on the rotating belt 222, and after the freeze-drying is completed, the belt wheel 221 drives the rotating belt 222 to rotate, and the cordyceps sinensis on the rotating belt 222 falls from the freeze-drying rack 22 into the feeding and discharging groove 23, so as to be fed into the packaging chamber 3. Compared with a material pushing rod, the belt transmission is mechanical transmission which utilizes a flexible belt tensioned on a belt wheel to carry out movement or power transmission, cordyceps can fall into the material inlet and outlet groove 23 one by one, the material pushing rod is easy to stack and press the freeze-dried cordyceps in the pushing process and also easy to break the cordyceps, and the appearance of the cordyceps is seriously influenced, so the belt transmission has the characteristics of simple structure, stable transmission, buffering and vibration absorption, capability of transmitting power between large shaft intervals and multiple shafts, low manufacturing cost, no need of lubrication, easiness in maintenance and the like.

The cordyceps to be freeze-dried is placed on the freeze-drying rack 22 for freeze-drying, and the freeze-drying process needs to maintain the good quality of the product and achieve a faster drying rate. The latent heat required for sublimation must be transferred from the heat source to the surface of the material being dried by an external heat transfer process and then to the actual place of ice sublimation within the material by an internal heat transfer process. The generated water vapor must reach the surface of the material through an internal mass transfer process and then be transferred into a steam trap through an external mass transfer process. Either process or several processes together may become a "bottleneck" for the drying process, depending on the design of the lyophilization apparatus, the operating conditions, and the characteristics of the material being dried. Only by improving the heat transfer efficiency and the mass transfer efficiency and increasing the surface area of the unit volume of the freeze-dried material, the higher drying rate can be obtained.

The temperature of the cordyceps sinensis inside the freeze-drying chamber 2 is lowered due to sublimation during the freeze-drying process, and the heater 223 can compensate for latent heat required for sublimation as a heat source. Without the heater 223, if the temperature of the freeze-drying chamber 2 is too low after a period of freeze-drying, the freeze-drying efficiency will be affected, and the quality of the cordyceps sinensis will not be affected.

Referring to fig. 5, the sealing device 31 includes a supporting frame 311, a discharging device 312, a rotating device 313 and a sealing device 314, the upper surface of the supporting frame 311 is movably connected to the sealing device 314, the lower surface of the supporting frame 311 is fixedly connected to the rotating device 313, a through hole 316 is disposed on the outer surface of the encapsulation chamber 3, and the discharging device 312 is matched with the through hole 316.

Discharging device 312 and through-hole 316 are close to the tight silk cooperation of seam and are in the same place, and encapsulation room 3 will have fine leakproofness, and the phenomenon of gas leakage just can not appear under operating condition, and more specifically is provided with the sealing washer at the periphery of through-hole 316, and the phenomenon of gas leakage also can not appear even encapsulation room 3 reaches ultimate vacuum degree, is favorable to encapsulation room 3 to keep higher vacuum degree, and the good chinese caterpillar fungus save time of encapsulation can be more of a specified duration like this.

Referring to fig. 6, the sealing device 314 includes a sealing plate 3141 and a rotating frame 3142, one end of the rotating frame 3142 is rotatably connected to the supporting frame 311, the other end of the rotating frame 3142 is rotatably connected to the sealing plate 3141, and a heating wire 3143 is disposed on the sealing plate 3141.

The packaging bag 7 is made of plastic with good sealing performance, so that heat sealing is needed, and certain pressure and heat are needed for heat sealing. The heating wire 3143 provides the heat required for sealing and the sealing plate 3141 provides the required pressure. When the sealing machine works, the heating wire 3143 is firstly started, the clamping panel of the sealing plate 3141 has certain temperature, then the opening of the packaging bag 7 is sent into the clamping panel of the sealing plate 3141, and then the support 3142 is rotated to drive the sealing plate 3141 to clamp the opening of the packaging bag 7, so that certain pressure is applied to the opening of the packaging bag 7. The opening of the packaging bag 7 is sealed by heat sealing under the action of temperature and pressure.

Referring to fig. 7, the rotating apparatus 313 includes a first toothed belt 3131, a second toothed belt 3132, a pouch clip 3133, and a second toothed wheel 3134, the first toothed belt 3131 is fixed to a lower surface of the supporting frame 311, the second toothed belt 3132 is disposed inside the first toothed belt 3131 and has a circumference smaller than that of the first toothed belt 3131, the second toothed wheel 3134 drives the second toothed belt 3132 to rotate, the pouch clip 3133 can clip a pouch 7, and the pouch clip 3133 moves along with the rotation of the second toothed belt 3132.

The loading device 32 comprises a material stopping plate 321, a loading clamp 322 and a hopper 323, wherein the material stopping plate 321 is arranged in the hopper 323, the hopper 323 is arranged below the discharging groove 23, the lower end of the hopper is connected with the loading clamp 322, the loading clamp 322 comprises a rotator 3221 and a clamp body 3222, and the clamp body 3222 rotates around the rotator 3221 in the circumferential direction.

The hopper 323 is conical, the material stopping plate 321 is arranged at the bottom end of the hopper 323, the material stopping plate 321 can move horizontally relative to the hopper, when the material stopping plate 321 is opened, the cordyceps sinensis can fall into the loading clamp 322, when the material stopping plate 321 is stopped, the cordyceps sinensis stops falling into the loading clamp 322, the loading clamp 322 extends into the packaging bag 7, the clamp body 3222 is rotated, the packaging bag 7 is opened, and the cordyceps sinensis is placed into the packaging bag 7.

Referring to fig. 9, a pouch clip 3133 includes a clamping portion 31331, a connecting shaft 31332, and a first toothed wheel 31333, wherein one end of the connecting shaft 31332 is fixedly connected to the clamping portion 31331, the other end of the connecting shaft 31332 is rotatably connected to the first toothed wheel 31333, the clamping portion 31331 is perpendicular to the connecting shaft 31332, the first toothed wheel 31333 is located between the first toothed belt 3131 and the second toothed belt 3132, the first toothed wheel 31333 is engaged with the first toothed belt 3131, and the first toothed wheel 31333 is engaged with the second toothed belt 3132.

Referring to fig. 8, the sealing device 31 further includes a cavity 315, the cavity includes an upper cover 3151 and a rotating shaft 3152, the upper cover 3151 axially and vertically rotates around the rotating shaft 3152, the discharging device 312 is a uncovered box 3121, the size of the cavity 315 matches with that of the discharging device 312, one side of the cavity 315 without a front panel is connected to the through hole 316, and the uncovered box 3121 extends into the cavity 315 from the through hole 316.

The cavity 315 is equivalent to extend from the through hole 316 to the inside of the packaging chamber 3 to form a cavity without a front panel, the upper cover 3151 of the cavity 315 is rotatable, the uncovered box 3121 has no upper panel, when the uncovered box 3121 is inserted into the cavity 315, the upper cover 3151 is rotated to form an opening above the cavity 315, so that the packaged cordyceps sinensis can fall into the uncovered box 3121. When the uncovered box 3121 needs to be taken out, the upper cover 3151 is rotated to cover the upper part of the cavity 315 with the upper cover 3151, and the uncovered box 3121 is drawn out, so that the interior of the sealing chamber 3 is still in a sealed vacuum state, and the operation of the sealing apparatus 31 is not affected.

The cordyceps sinensis dried by the freeze dryer of the invention has the following characteristics: the heat-sensitive substances in Cordyceps, such as Cordyceps polysaccharide, will not denature or deactivate; when dried at low temperature, some volatile components in the material are lost little; during the freeze-drying process, the growth of microorganisms and the action of enzymes cannot be carried out, so that the original color, shape and size can be kept; because the drying is carried out in a frozen state, the volume is almost unchanged, and the original structure is kept; the dried substance is loose and porous and is spongy, and the original properties of the dried substance are almost immediately recovered after water is added; because the drying is carried out under vacuum, oxygen is little, and some substances which are easy to oxidize are protected; the freeze-drying can remove more than 95-99% of water, so that the dried product can be stored for a long time without deterioration.

Other embodiments of the present application will be apparent to those skilled in the art from consideration of the specification and practice of the application disclosed herein. This application is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the application and including such departures from the present disclosure as come within known or customary practice within the art to which the invention pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the application being indicated by the following claims.

It will be understood that the present application is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the application is limited only by the appended claims.

Claims

1. A freeze dryer capable of packaging cordyceps comprises a case (1), and is characterized in that:

a partition plate (11) is arranged in the case (1), and the partition plate (11) comprises a first transverse partition plate (111), a second transverse partition plate (112), a third transverse partition plate (113) and a first vertical partition plate (114);

the first transverse partition plate (111) and the second transverse partition plate (112) are sequentially arranged between the left wall of the first vertical partition plate (114) and the inner wall of the case (1) from top to bottom;

the first transverse clapboard (111), the first vertical clapboard (114) and the inner wall of the case (1) enclose a control chamber (4), the first transverse clapboard (111), the second transverse clapboard (112), the first vertical clapboard (114) and the case (1) enclose a refrigeration chamber (5), the second transverse clapboard (112), the first vertical clapboard (114) and the case (1) enclose a vacuum chamber (6), the refrigeration chamber (5) is arranged above the vacuum chamber (6), and the control chamber (4) is arranged above the refrigeration chamber (5);

the third transverse partition plate (113) is arranged between the right wall of the first vertical partition plate (114) and the inner wall of the case (1), the first vertical partition plate (114), the inner wall of the case (1) and the third transverse partition plate (113) enclose a freeze-drying chamber (2) and a packaging chamber (3), and the freeze-drying chamber (2) is arranged above the packaging chamber (3);

the surface of the outer wall of the control chamber (4) is provided with a control screen (41), the refrigeration chamber (5) is provided with refrigeration equipment (51) and a condensation pipe (52), one end of the condensation pipe (52) is connected with the refrigeration equipment (51), the other end of the condensation pipe (52) is connected with the freeze-drying chamber (2), the vacuum chamber (6) is provided with a vacuum pump (61) and a vacuum pipe (62), the vacuum pipe (62) comprises a first vacuum valve (621) and a second vacuum valve (622), the vacuum pipe (62) is a three-way pipe, and three interfaces of the three-way pipe are respectively connected with the freeze-drying chamber (2), the packaging chamber (3) and the vacuum pump (61);

the packaging chamber (3) is provided with a sealing device (31) and a charging device (32), the charging device (32) is located above the sealing device (31), the freeze-drying chamber (2) is provided with an observation window (21), a freeze-drying rack (22) and a discharge chute (23), the discharge chute (23) forms an inclination angle with the horizontal plane, the discharge chute (23) penetrates through the third diaphragm plate (113), one end of the discharge chute (23) is located below the freeze-drying rack (22), and the other end of the discharge chute (23) is located above the charging device (32);

the sealing device (31) comprises a support frame (311), a discharging device (312), a rotating device (313) and a sealing device (314), the upper surface of the support frame (311) is movably connected with the sealing device (314), the lower surface of the support frame (311) is fixedly connected with the rotating device (313), a through hole (316) is formed in the outer surface of the packaging chamber (3), and the discharging device (312) is matched with the through hole (316);

the sealing device (314) comprises a sealing plate (3141) and a rotating frame (3142), one end of the rotating frame (3142) is rotatably connected to the supporting frame (311), the other end of the rotating frame (3142) is rotatably connected to the sealing plate (3141), and a heating wire (3143) is arranged on the sealing plate (3141);

the rotating apparatus (313) includes a first toothed belt (3131), a second toothed belt (3132), a pouch clip (3133), and a second toothed wheel (3134), the first toothed belt (3131) being fixedly coupled to a lower surface of the supporting frame (311), the second toothed belt (3132) being disposed inside the first toothed belt (3131), the second toothed belt (3132) having a circumference smaller than that of the first toothed belt (3131), the second toothed wheel (3134) being disposed inside the second toothed belt (3132), the second toothed wheel (3134) being engaged with the second toothed belt (3132);

the pouch clip (3133) includes a clamping portion (31331), a connecting shaft (31332), and a first gear (31333), one end of the connecting shaft (31332) is fixedly connected to the clamping portion (31331), the other end of the connecting shaft (31332) is rotatably connected to the first gear (31333), the clamping portion (31331) is perpendicular to the connecting shaft (31332), the first gear (31333) is located between the first gear belt (3131) and the second gear belt (3132), the first gear (31333) is engaged with the first gear belt (3131), and the first gear (31333) is engaged with the second gear belt (3132).

2. The freeze dryer of claim 1, wherein: the freeze-drying rack (22) comprises a belt wheel (221), a rotating belt (222) and a heater (223), wherein the rotating belt (222) is sleeved on the outer surface of the belt wheel (221), and the heater (223) is arranged in the rotating belt (222).

3. The freeze dryer of claim 1, wherein: the charging device (32) comprises a material stopping plate (321), a charging clamp (322) and a hopper (323), wherein the material stopping plate (321) is arranged in the hopper (323), the hopper (323) is arranged below the discharging groove (23), the lower end of the hopper (323) is connected with the charging clamp (322), the charging clamp (322) comprises a rotator (3221) and a clamp body (3222), and the clamp body (3222) rotates around the rotator (3221).

4. The freeze dryer of claim 1, wherein: the sealing device (31) further comprises a cavity (315), the cavity comprises an upper cover (3151) and a rotating shaft (3152), the upper cover (3151) axially and vertically rotates around the rotating shaft (3152), the discharging device (312) is a uncovered box body (3121), the size of the cavity (315) is matched with that of the uncovered box body (3121), one side of the cavity (315) without a front panel is connected with the through hole (316), and the uncovered box body (3121) extends into the cavity (315) from the through hole (316).