Freezing type drying machine

Abstract

The utility model relates to the field of pharmacy, in particular to a freezing type drying machine which aims at solving the technical problem that in the prior art, a freeze dryer specially customized for tablets does not exist, so that the tablets are dried unevenly in the drying process, a Z-shaped belt transmission is arranged in a drying box, and a baffle is arranged on the upper portion of an upper belt of the Z-shaped belt transmission in a spaced mode. A turning panel is arranged outside the bending position of the upper portion of the Z-shaped belt transmission and is composed of an upper guide plate, a turning arc plate and a lower guide plate from top to bottom, gaps are reserved between the turning arc plate and the bending position of the upper portion of the Z-shaped belt transmission and between the lower end of the lower guide plate and the upper portion of the upper belt of the Z-shaped belt transmission, and the three gaps are all larger than the thickness of one tablet and smaller than the thickness of two tablets. Tablets discharged from the pre-freezing box enter the Z-shaped belt transmission of the drying box to be frozen and dried, the tablets are flattened by the baffle and move to the bent position of the upper portion of the Z-shaped belt transmission to be turned over through cooperation of the belt and the turning-over plate, and all the faces of the tablets are evenly dried.

Description

Technical Field

[0001] The utility model relates to the pharmaceutical field, in particular to a refrigeration dryer. Background Art

[0002] Freeze-drying technology refers to a technology that directly sublimates water from solid to gas in a vacuum environment below zero degrees, evacuates the moisture in the product, and thus completely retains the activity of biological components. The drying effect is good: since the temperature is low during the drying process and long-term high-temperature treatment is avoided, the nutrients in the items are retained, the nutritional value of the items is improved, and the storage period is long: the moisture content of the dried items is extremely low, and the growth of microorganisms is inhibited, thereby extending the shelf life of the items. Since the compressed tablets contain moisture, freeze-drying technology can remove the internal moisture faster and better;

[0003] There is no freeze dryer specially customized for tablets in the prior art, which results in uneven drying of the tablets. The utility model solves the above problem. Utility Model Content

[0004] The utility model provides a freeze-drying machine to solve the technical problem that there is no freeze-drying machine specially customized for tablets in the prior art, which leads to uneven drying of tablets.

[0005] A freeze dryer comprises: a pre-freezing box, the lower part of which is connected to one end of a drying box through a medicine discharging device, the lower part of the other end of the drying box is connected to a collecting box, the drying box is connected to a vacuum pump through a vacuum tube, a Z-type belt drive is arranged in the drying box, a baffle is arranged at a gap on the upper part of the upper belt of the Z-type belt drive, a flip panel is arranged outside the upper bending part of the Z-type belt drive, the flip panel is composed of an upper guide plate, a flip arc plate and a lower guide plate from top to bottom, a gap is left between the flip arc plate and the upper bending part of the Z-type belt drive, and between the lower end of the lower guide plate and the upper part of the upper belt of the Z-type belt drive, and the three gaps are all greater than the thickness of one tablet and less than the thickness of two tablets.

[0006] Furthermore, the medicine discharge device is located in a corner of the pre-freezing box, and includes a circular discharge nozzle, which is connected to the pre-freezing box. A rotating plate is sealed and rotatably connected inside the circular discharge nozzle, and the interior of the rotating plate is filled with thermal insulation material. The shaft end of the rotating plate is rotatably connected to the side walls of the pre-freezing box and the drying box. A guide plate is connected inside the pre-freezing box, and the guide plate can guide the tablets to the circular discharge nozzle.

[0007] Furthermore, the Z-type belt drive includes a low-temperature antifreeze belt, a roller is provided inside the large-angle bend of the low-temperature antifreeze belt, and a shaping shaft is provided outside the small-angle bend of the low-temperature antifreeze belt, and the shaping shaft and the roller shaft end are both rotatably connected to the side wall of the drying box.

[0008] Furthermore, the middle part of the upper shaping shaft is rotatably connected with a telescopic end of a cylinder, and the fixed end of the cylinder is hinged to the bottom wall of the drying box.

[0009] Beneficial effects of the utility model:

[0010] 1. The tablets discharged from the pre-freezing box enter the Z-belt drive of the drying box for freeze drying. The tablets are flattened by the baffle plate and turned over by the belt and the turning plate at the upper bend of the Z-belt drive, so that all sides of the tablets are dried evenly;

[0011] 2. The round discharge nozzle cooperates with the rotating plate filled with insulation material to achieve stable discharge and prevent loss of pre-freezing temperature. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the structure of the utility model;

[0013] Figure 2 It is a schematic diagram of the structural section of the utility model;

[0014] In the figure: pre-freezing box 1; medicine discharging device 2; circular discharging nozzle 21; rotating plate 22; guide plate 23; drying box 3; collecting box 4; vacuum tube 5; vacuum pump 6; Z-type belt drive 7; low-temperature antifreeze belt 71; rotating roller 72; shaping shaft 73; cylinder 74. Baffle 8; upper guide plate 9; turning arc plate 10; lower guide plate 11. DETAILED DESCRIPTION

[0015] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0016] The rotational connection described in this device refers to the process of baking the bearing on the shaft, providing a spring retaining ring groove on the shaft or the shaft hole, and clamping the elastic retaining ring in the retaining ring groove to achieve axial fixation of the bearing and realize rotation; the articulation refers to a connection method that is active on connecting parts such as hinges, pins and short shafts.

[0017] The utility model will be described in detail below with reference to the accompanying drawings.

[0018] Embodiment 1:

[0019] The following is combined with Figure 1-2The present embodiment describes a refrigeration dryer, comprising: a pre-freezing box 1, the lower part of the pre-freezing box 1 is connected to one end of a drying box 3 through a medicine discharge device 2, the lower part of the other end of the drying box 3 is connected to a collecting box 4, the drying box 3 is connected to a vacuum pump 6 through a vacuum tube 5, a Z-type belt drive 7 is arranged in the drying box 3, a baffle 8 is arranged at a gap on the upper part of the upper belt of the Z-type belt drive 7, a flip panel is arranged outside the upper bending part of the Z-type belt drive 7, the flip panel is composed of an upper guide plate 9, a flip arc plate 10, and a lower guide plate 11 from top to bottom, a gap is left between the flip arc plate 10 and the upper bending part of the Z-type belt drive 7, and between the lower end of the lower guide plate 11 and the upper part of the upper belt of the Z-type belt drive 7, and the three gaps are all greater than the thickness of one tablet and less than the thickness of two tablets;

[0020] The compressed tablets are placed in the pre-freezing box 1 to turn the water therein into solid ice. After the tablets are frozen, they are discharged to the Z-belt drive 7 in the drying box 3 through the drug discharge device 2. The vacuum pump 6 turns the drying box 3 into a vacuum environment through the vacuum tube 5. The solid ice is directly sublimated into water vapor by heating to achieve freeze drying. The baffle 8 flattens the tablets to prevent them from stacking. The upper guide plate 9 guides the tablets into the gap between the flip arc plate 10 and the upper bend of the Z-belt drive 7. The tablets slide down along this gap and flip over, and then slide down along the lower guide plate 11 and fall on the lower Z-belt drive 7. Flipping makes the ice on the other side of the tablet sublime better. The Z-belt drive 7 transports the freeze-dried tablets to the collection box 4 to complete the collection.

[0021] The medicine discharging device 2 is located at a corner of the pre-freezing box 1, and includes a circular discharging nozzle 21, which is connected to the pre-freezing box 1, and a rotating plate 22 is sealed and rotatably connected inside the circular discharging nozzle 21, and the rotating plate 22 is filled with heat preservation material, and the axial end of the rotating plate 22 is rotatably connected to the side walls of the pre-freezing box 1 and the drying box 3, and a guide plate 23 is connected inside the pre-freezing box 1, and the guide plate 23 can guide the tablets to the circular discharging nozzle 21;

[0022] When discharging medicine, the shaft end power of the rotating plate 22 is turned on, and the tablets slide into the circular discharging nozzle 21 along the guide plate 23. The rotating plate 22 rotates to drive the tablets to be discharged. During pre-freezing, the pre-freezing temperature is not lost because the rotating plate 22 is filled with heat preservation material.

[0023] The Z-belt drive 7 includes a low-temperature antifreeze belt 71, a roller 72 is provided inside the large-angle bend of the low-temperature antifreeze belt 71, and a shaping shaft 73 is provided outside the small-angle bend of the low-temperature antifreeze belt 71. The shaping shaft 73 and the shaft ends of the roller 10 are both rotatably connected to the side wall of the drying box 3;

[0024] The low-temperature antifreeze belt 71 is shaped by the cooperation of the shaping shaft 73 and the rotating roller 72 .

[0025] The middle part of the upper shaping shaft 73 is rotatably connected to the telescopic end of the cylinder 74, and the fixed end of the cylinder 74 is hinged to the inner bottom wall of the drying box 3;

[0026] The upper shaping shaft 73 is pressed tightly by the telescopic end of the cylinder 74, so that the Z-belt drive 7 always remains straight and the tablets will not be stacked.

[0027] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0028] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A refrigerated dryer, characterized in that: include: A prefreezing box (1) is provided, wherein the lower part of the prefreezing box (1) is connected to one end of a drying box (3) through a medicine discharging device (2), the lower part of the other end of the drying box (3) is connected to a collecting box (4), the drying box (3) is connected to a vacuum pump (6) through a vacuum tube (5), a Z-shaped belt drive (7) is provided inside the drying box (3), a baffle (8) is provided at a gap left at the upper part of the upper belt of the Z-shaped belt drive (7), a flip panel is provided outside the upper bending part of the Z-shaped belt drive (7), the flip panel is composed of an upper guide plate (9), a flip arc plate (10), and a lower guide plate (11) from top to bottom, a gap is left between the flip arc plate (10) and the upper bending part of the Z-shaped belt drive (7), and between the lower end of the lower guide plate (11) and the upper part of the upper belt of the Z-shaped belt drive (7), and the three gaps are all greater than the thickness of one tablet and less than the thickness of two tablets.

2. A refrigerated dryer according to claim 1, characterized in that: The medicine discharging device (2) is located at a corner of the pre-freezing box (1), and comprises a circular discharging nozzle (21), the circular discharging nozzle (21) is connected to the pre-freezing box (1), a rotating plate (22) is sealed and rotatably connected inside the circular discharging nozzle (21), the interior of the rotating plate (22) is filled with heat-insulating material, the shaft end of the rotating plate (22) is rotatably connected to the side walls of the pre-freezing box (1) and the drying box (3), and a guide plate (23) is connected inside the pre-freezing box (1), and the guide plate (23) can guide the tablets to the circular discharging nozzle (21).

3. A refrigerated dryer according to claim 1, characterized in that: The Z-belt drive (7) comprises a low-temperature antifreeze belt (71), a roller (72) is provided inside the large-angle bend of the low-temperature antifreeze belt (71), and a shaping shaft (73) is provided outside the small-angle bend of the low-temperature antifreeze belt (71), and the shaft ends of the shaping shaft (73) and the roller (72) are both rotatably connected to the side wall of the drying box (3).

4. A refrigerated dryer according to claim 3, characterized in that: The upper middle portion of the shaping shaft (73) and the middle portion of the shaping shaft (73) are rotatably connected to the telescopic end of the cylinder (74), and the fixed end of the cylinder (74) is hinged to the inner bottom wall of the drying box (3).

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