Energy-saving pill drying box
By using a grid plate and a moving mechanism in conjunction with a blower mechanism in a pill drying chamber, uniform drying of pills is achieved, solving the problems of uneven drying and energy waste, and improving the quality and drying efficiency of pills.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-16
- Publication Date
- 2026-03-13
AI Technical Summary
Existing pill drying ovens suffer from uneven drying during the drying process, resulting in inconsistent drying levels between the center and edges of the pills, which affects the quality and safety of the pills, while also consuming a large amount of energy.
The design employs a grid plate with the grid size gradually decreasing from top to bottom. Combined with a moving mechanism and a blower mechanism, the movement of the crossbars and the design of aeration and ventilation slots ensure uniform distribution of hot air, enabling dynamic tumbling and sorting drying of the pills.
It improves the uniformity and efficiency of pill drying, reduces energy consumption, ensures the quality and stability of pills, prevents sticking, and shortens drying time.
Smart Images
Figure CN223992400U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of pharmaceutical equipment technology, specifically an energy-saving pill drying oven. Background Technology
[0002] In the pharmaceutical industry, pill drying is a crucial step. After manufacturing, pills often contain a certain amount of moisture, which not only affects their appearance and texture—causing them to stick together and become irregularly shaped—but more importantly, it has numerous adverse effects on their internal quality. For example, excessive moisture may cause chemical reactions in the active ingredients, leading to reduced or even ineffective efficacy; it may also provide a suitable environment for microbial growth, thus affecting the safety and stability of the drug.
[0003] In existing pill drying ovens, the drying degree of pills is often uneven during the drying process. This is mainly due to the way the pills are placed in the drying oven and the uneven distribution of hot air. Typically, pills are placed on fixed trays, and the pills at the edge of the tray and in the center have different opportunities to be exposed to hot air. Pills at the edge may be over-dried, while pills in the center may be under-dried.
[0004] Given the shortcomings of existing technologies, there is an urgent need for a new type of pill drying oven that can solve the problems in existing technologies, improve the uniformity and efficiency of pill drying, reduce energy consumption, and at the same time improve the quality and safety of medicines. Utility Model Content
[0005] To address the aforementioned problems, the purpose of this invention is to provide an energy-saving pill drying oven that can improve the uniformity of pill drying.
[0006] To achieve the above objectives, the technical solution of this utility model is as follows:
[0007] An energy-saving pill drying box includes a box body with a drying chamber inside. The drying chamber has several grid plates with the grid size gradually decreasing from top to bottom. A crossbar is provided below each grid plate and slides against the side wall of the drying chamber. A moving mechanism is provided at one end of each crossbar for driving the crossbar to move horizontally. Several aeration grooves are opened at the top of each crossbar, and ventilation grooves are connected to the bottom of each aeration groove. Each ventilation groove is connected to a blower mechanism.
[0008] The top of the box is equipped with a medicine feeding mechanism, and the side of the box is equipped with a medicine dispensing mechanism.
[0009] The above approach has the following beneficial effects:
[0010] 1. This solution employs several grid plates, with the grid size gradually decreasing from top to bottom. This design enables the classification of pills of different sizes. Simultaneously, a crossbar that slides against the sidewall is installed below the grid plate, along with a moving mechanism that drives the crossbar to move horizontally. Through the reciprocating movement of the crossbar, combined with the action of the blowing mechanism, the pills are continuously tumbled on the grid plate.
[0011] An aeration groove is formed at the top of the crossbar, and a ventilation groove is connected to the bottom, which in turn connects to the blower mechanism. This interconnected structure ensures that hot air effectively acts on the pills on each grid plate. Guided by the aeration and ventilation grooves, the hot air is distributed more evenly, improving drying efficiency and uniformity.
[0012] 2. This solution, through the tumbling of pills on different grid plates and the even distribution of hot air, ensures that all parts of the pills are fully exposed to the hot air, avoiding the problem of uneven drying caused by different placement of pills in traditional drying ovens. It effectively prevents over-drying or under-drying of pills, improving the overall quality and stability of the pills.
[0013] 3. This solution, through a grid design where the mesh size gradually decreases from top to bottom, can automatically classify pills of different sizes and then dry them separately. This allows for better control of the drying process based on the size characteristics of the pills, meeting the drying needs of different pills and further improving the drying quality and efficiency.
[0014] 4. This solution reduces the contact time between pills and between pills and the grid plate by continuously tumbling the pills on the grid plate. This effectively prevents the pills from sticking together during the drying process, ensuring the integrity of the pills' appearance and shape, and improving the quality of the medicine.
[0015] 5. Compared with the traditional fixed tray drying oven, this solution uses the synergistic effect of the moving mechanism and the blower mechanism to keep the pills in a dynamic tumbling state during the drying process. This increases the contact area and contact opportunities between the pills and the hot air, accelerates the evaporation rate of moisture, thereby improving drying efficiency, shortening drying time, and reducing energy consumption.
[0016] Furthermore, the drug feeding mechanism includes a drug feeding slot located at the top of the box, the bottom of which is connected to the drying chamber, and a top cover that is rotatably connected to the top of the drug feeding slot.
[0017] Beneficial effects: A medicine inlet slot is provided on the top of the chamber, which makes it convenient for operators to put the pills to be dried into the drying chamber from the top. The top cover of the medicine inlet slot can be closed when no pills are being put in, preventing external dust and impurities from entering the drying chamber and ensuring the cleanliness of the drying environment.
[0018] Furthermore, the medicine dispensing mechanism includes a front cover, an opening on one side of the drying chamber, and the front cover is rotatably connected to the opening; the grid plates are all slidably engaged with the side wall of the drying chamber.
[0019] Beneficial effects: When it is necessary to remove the pill, simply rotate the front cover to open the opening, and then use the sliding cooperation between the grid plate and the side wall of the drying chamber to easily pull out the grid plate and remove the pill, which greatly improves the efficiency of drug removal.
[0020] Furthermore, the moving mechanism includes a slide groove formed on the side wall of the drying chamber; a lead screw is rotatably connected in the slide groove, a motor is provided at one end of the lead screw, the output shaft of the motor is coaxially and fixedly connected to the lead screw, a nut seat is threaded on the lead screw, and the nut seat is fixedly connected to one end of the crossbar.
[0021] Beneficial effects: The motor drives the lead screw to rotate, which in turn moves the nut seat, and the movement of the nut seat causes the crossbar to move along the length of the slide.
[0022] Furthermore, the blower mechanism includes a main chamber located inside the housing, which is connected to the outside. A fan and a heating wire are installed along the path connecting the main chamber to the outside. Several air inlets are also provided inside the main chamber, and each air inlet is connected to a ventilation pipe. The other end of each ventilation pipe is connected to a ventilation slot.
[0023] Beneficial Effects: The combination of a fan and heating wire heats outside air before introducing it into the main chamber, creating a stable hot air source. Several openings within the main chamber connect to ventilation ducts, the other end of which connects to ventilation slots, forming an orderly hot air distribution system. Hot air enters the ventilation ducts from the main chamber through the openings, then flows into the ventilation slots, and finally is distributed to each aeration slot. This distribution method ensures that hot air is evenly delivered to the aeration slots above each grid plate, guaranteeing that the pills on each grid plate receive sufficient and uniform hot air, avoiding localized overheating or insufficient drying, and further improving the uniformity and quality of drying.
[0024] Furthermore, each side of the chute is connected to a side groove for accommodating ventilation pipes.
[0025] Beneficial Effects: By setting up a connecting side groove on one side of the chute, a dedicated space is provided for the ventilation ducts. This design allows the ventilation ducts to be arranged orderly within the side groove, avoiding the clutter caused by haphazard placement of ventilation ducts within the drying chamber. This ensures the neatness and orderliness of the internal structure of the equipment, facilitating equipment maintenance and management. When the crossbar moves within the chute, the ventilation ducts, located within the side groove, receive independent space, preventing them from crossing, tangling, or interfering with each other as the crossbar moves. This ensures the normal ventilation function of the ventilation ducts, guaranteeing a stable delivery of hot air to each ventilation and aeration trough, thereby effectively drying the pills and improving the stability and reliability of the drying process.
[0026] Furthermore, the top of the crossbar has a tapered structure.
[0027] Beneficial effects: The tapered structure at the top of the crossbar prevents pills from lingering and accumulating on it during descent. The tapered structure guides the pills smoothly onto the grid plate below, preventing accumulation at the crossbar and ensuring the pills are sorted and dried according to the designed path, thus improving the smoothness and efficiency of the drying process.
[0028] Furthermore, the dimensions of the aeration tank gradually decrease from top to bottom.
[0029] Beneficial effects: By differentiating the size of the aeration tank according to the diameter of the pills on different grid plates, precise aeration for pills of different sizes is achieved. The larger the grid plate, the larger the pill diameter, requiring a larger aeration volume. The larger aeration tank can provide sufficient hot air to meet the drying needs of large pills. The smaller the grid plate, the smaller the pill diameter. To avoid splashing of smaller pills due to a large aeration volume, the size of the aeration tank gradually decreases, matching the aeration volume with the drying needs of smaller pills. This ensures that the pills are fully dried during the drying process without being damaged or splashed due to excessive aeration, improving the stability and reliability of the drying process.
[0030] Furthermore, from top to bottom, the dimensions of the corresponding ventilation pipes and air inlets on the crossbars gradually decrease.
[0031] Beneficial effects: The dimensions of the ventilation pipes and air inlets on the horizontal bars gradually decrease from top to bottom, allowing for precise matching with the aeration requirements of pills of different sizes. Larger pills on the upper grid plate require a larger aeration volume to ensure drying effectiveness, and the larger ventilation pipes and air inlets provide an ample supply of hot air. Conversely, smaller pills on the lower grid plate require a relatively smaller aeration volume, and the smaller ventilation pipes and air inlets allow for control of the aeration volume, preventing small pills from splashing due to excessive aeration. This ensures the stability and reliability of the pill drying process and improves drying quality.
[0032] By rationally adjusting the dimensions of the ventilation ducts and air inlets, excessive aeration was avoided for small pills, thus reducing unnecessary energy waste. While meeting the pill drying requirements, the hot air delivery volume and energy consumption were reduced, improving the overall energy efficiency of the pill drying chamber.
[0033] Furthermore, an exhaust pipe is connected to one side of the drying chamber, and a pressure relief valve is installed inside the exhaust pipe.
[0034] Beneficial effects: Connecting an exhaust pipe to one side of the drying chamber and installing a pressure relief valve inside the exhaust pipe can effectively remove water vapor and excess heat generated during the drying process and maintain the pressure balance inside the drying chamber. Attached Figure Description
[0035] Figure 1 This is a three-dimensional structural diagram of the energy-saving pill drying oven of this utility model.
[0036] Figure 2 for Figure 1 Top view.
[0037] Figure 3 for Figure 2 Cross-sectional view along the AA direction.
[0038] Figure 4 for Figure 2 Cross-sectional view along the BB direction.
[0039] Figure 5 for Figure 3 A magnified view of a portion of point M in the middle.
[0040] Figure 6 for Figure 4 A magnified view of a portion of point N in the middle.
[0041] The reference numerals in the accompanying drawings of the instruction manual include: 1. Box body; 2. Front cover; 3. Top cover; 101. Drying chamber; 102. Main chamber; 103. Fan; 104. Heating wire; 105. Air inlet; 106. Grid plate; 107. Slide groove; 108. Lead screw; 109. Crossbar; 110. Side groove; 111. Ventilation pipe; 112. Nut seat; 113. Motor; 114. Exhaust pipe; 115. Pressure relief valve; 301. Drug inlet; 1091. Ventilation groove; 1092. Aeration groove. Detailed Implementation
[0042] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.
[0043] In the description of this utility model, it should be understood that the terms "longitudinal", "lateral", "vertical", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0044] In the description of this utility model, unless otherwise specified and limited, it should be noted that the terms "installation", "connection" and "linking" should be interpreted broadly. For example, they can refer to mechanical or electrical connections, or internal connections between two components. They can be direct connections or indirect connections through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms according to the specific circumstances.
[0045] The following detailed description illustrates the specific implementation method:
[0046] The basic implementation examples are as follows: Figures 1-6 As shown: An energy-saving pill drying box includes a box body 1; a drying chamber 101 is provided inside the box body 1, and a plurality of grid plates 106 are slidably fitted inside the drying chamber 101. Specifically, slide rails are provided on the left and right side walls of the drying chamber 101, and the grid plates 106 are slidably fitted to the drying chamber 101 through the slide rails. The grid size of the grid plates 106 gradually decreases from top to bottom. In this embodiment, a total of three layers of grid plates 106 are provided. In some embodiments, the number of grid plates 106 is determined according to actual needs. A crossbar 109 is provided below each layer of grid plates 106, and the crossbar 109 is slidably fitted to the side wall of the drying chamber 101. Preferably, as shown in the attached figure... Figure 5 As shown, the top of the crossbar 109 has a tapered structure.
[0047] Preferred options are listed below. Figure 3 As shown, the top right side of the drying chamber 101 is also connected to an exhaust pipe 114, and a pressure relief valve 115 is fixed inside the exhaust pipe 114 by bolts.
[0048] Each of the crossbars 109 has a moving mechanism at one end for driving the crossbars 109 to move horizontally. Specifically, the moving mechanism includes a slide groove 107 formed on the side wall of the drying chamber 101; a lead screw 108 is rotatably connected in the slide groove 107, and a motor 113 is provided at the right end of the lead screw 108. Figure 3 As shown in the figure, one of the motors 113 is shown. The output shaft of the motor 113 is coaxially fixedly connected to the lead screw 108 through a coupling. The lead screw 108 is threaded with a nut seat 112, which is welded to one end of the crossbar 109.
[0049] Combined with appendix Figure 4 and attached Figure 5 As shown, several aeration grooves 1092 are provided at the top of each crossbar 109. From top to bottom, the size of the aeration grooves 1092 on each crossbar 109 gradually decreases. The bottom of the aeration grooves 1092 is connected to a ventilation groove 1091, which is opened along the length of the crossbar 109. Each ventilation groove 1091 is connected to a blower 103.
[0050] Specifically, in conjunction with the appendix Figure 3 and attached Figure 4 As shown, the blower 103 includes a main chamber 102 located within the housing 1. The main chamber 102 communicates with the outside. A fan 103 and a heating wire 104 are installed along the communication path between the main chamber 102 and the outside. The fan 103 is bolted to the right end (the end furthest from the main chamber 102) of the communication path between the main chamber 102 and the outside. The heating wire 104 is welded to the left end (the end closest to the main chamber 102) of the communication path between the main chamber 102 and the outside. Several air inlets 105 are also provided within the main chamber 102. Each air inlet 105 is connected to a ventilation pipe 111, and the other end of each ventilation pipe 111 is connected to a ventilation slot. Preferably, the dimensions of the ventilation pipe 111 and air inlet 105 corresponding to the crossbar 109 gradually decrease from top to bottom, meaning the ventilation pipe 111 and air inlet 105 connected to the topmost crossbar 109 are the largest (allowing for the most gas to pass through per unit time).
[0051] Preferred options are listed below. Figure 4 As shown, each of the left sides of the slide 107 is connected to a side groove 110 for accommodating the ventilation pipe 111, and each side groove 110 does not interfere with the others.
[0052] The top of the box 1 is provided with a drug feeding mechanism. Specifically, the drug feeding mechanism includes a drug feeding slot 301 opened on the top of the box 1. In this embodiment, the drug feeding slot 301 has a gradually changing size structure. The bottom of the drug feeding slot 301 is connected to the drying chamber 101, and the top of the drug feeding slot 301 is rotatably connected to the top cover 3.
[0053] A medicine dispensing mechanism is provided on the front side of the box 1. Specifically, the medicine dispensing mechanism includes a front cover 2. An opening is provided on the front side of the drying chamber 101, and the front cover 2 is rotatably connected to the opening.
[0054] The specific implementation process is as follows:
[0055] After opening the top cover 3, the operator places the pills to be dried into the drying chamber 101 through the inlet 301 at the top of the chamber 1. The inlet 301 has a gradually changing size structure to facilitate the smooth entry of the pills into the drying chamber 101. The top cover 3 of the inlet 301 is closed after the pills are inserted to prevent the pills from scattering and external impurities from entering.
[0056] After the pills enter the drying chamber 101, they fall onto the topmost grid plate 106. As the grid size of the grid plate 106 gradually decreases from top to bottom, larger pills remain on the top grid plate 106, while smaller pills pass through the grid of the top grid plate 106 and fall onto the next grid plate 106, thus achieving pill sorting.
[0057] At this time, the operator starts the motor 113, heating wire 104, and fan 103. The motor 113 drives the lead screw 108 to rotate through the coupling, and the nut seat 112 on the lead screw 108 moves accordingly, thereby driving the crossbar 109, which is welded and fixed to the nut seat 112, to move horizontally along the sliding groove 107 on the side wall of the drying chamber 101. The top of the crossbar 109 has a conical structure to prevent the pills from accumulating on the crossbar 109 during the fall. At the same time, the blower 103 starts working, and the fan 103 draws outside air into the main chamber 102. The heating wire 104 heats the air to form hot air. The hot air enters the ventilation pipe 111 through the air inlet 105 in the main chamber 102, and is then transported by the ventilation pipe 111 to the aeration groove 1092 at the top of the crossbar 109 to dry the pills on the grid plate 106. As the dimensions of the aeration trough 1092 gradually decrease from top to bottom along the crossbar 109, and the corresponding dimensions of the ventilation pipe 111 and air inlet 105 also gradually decrease, different sizes of pills can receive a suitable amount of aeration, ensuring the drying effect and preventing pill splashing.
[0058] Once the pills are dried, the operator opens the front cover 2 on the front side of the chamber 1 and pulls out the mesh plate 106 from the drying chamber 101 to remove the pills. After removing the pills, the operator closes the front cover 2 to prepare for the next drying operation.
[0059] During the drying process, the water vapor and excess heat generated in the drying chamber 101 are discharged through the exhaust pipe 114. The pressure relief valve 115 in the exhaust pipe 114 can automatically adjust the opening degree to maintain the pressure balance in the drying chamber 101 and ensure the stable operation of the equipment.
[0060] The above descriptions are merely embodiments of this utility model, and common knowledge such as specific structures and / or characteristics are not described in detail here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the structure of this utility model, and these should also be considered within the scope of protection of this utility model. These modifications will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application shall be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.
Claims
1. An energy-saving pill drying box, comprising a box body (1), the top of the box body (1) is provided with a pill feeding mechanism, and one side of the box body (1) is provided with a pill taking mechanism; characterized in that: The box (1) is provided with a drying cavity (101), a plurality of grid plates (106) are arranged in the drying cavity (101), the grid size of the grid plates (106) gradually decreases from top to bottom, horizontal rods (109) are arranged below the grid plates (106) and are in sliding fit with the side wall of the drying cavity (101), the horizontal rods (109) are provided with moving mechanisms at one end for driving the horizontal rods (109) to move horizontally, a plurality of aeration grooves (1092) are formed in the top of the horizontal rods (109), the bottom of the aeration grooves (1092) is communicated with a ventilation groove (1091), and the ventilation groove (1091) is communicated with a blower (103).
2. The energy saving pill drying oven according to claim 1, characterized in that: The medicine feeding mechanism comprises a medicine feeding groove (301) formed in the top of the box (1), the bottom of the medicine feeding groove (301) is communicated with the drying cavity (101), and the top of the medicine feeding groove (301) is rotatably connected with an upper cover (3).
3. The energy saving pill drying oven according to claim 1, wherein: The medicine taking mechanism comprises a front cover (2), an opening is formed in one side of the drying cavity (101), and the front cover (2) is rotatably connected to the opening; the grid plates (106) are in sliding fit with the side wall of the drying cavity (101).
4. The energy saving pill drying oven according to claim 3, characterized in that: The moving mechanism comprises a sliding groove (107) formed in the side wall of the drying cavity (101); a lead screw (108) is rotatably connected in the sliding groove (107), one end of the lead screw (108) is provided with a motor (113), the output shaft of the motor (113) is fixedly connected with the lead screw (108) in a same shaft, a nut seat (112) is threadedly connected on the lead screw (108), and one end of the nut seat (112) is fixedly connected with the horizontal rod (109).
5. The energy saving pill drying oven according to claim 4, wherein: The blower (103) comprises a main cavity (102) formed in the box (1), the main cavity (102) is communicated with the outside, a fan (103) and an electric heating wire (104) are arranged on the communication path of the main cavity (102) and the outside; a plurality of air inlets (105) are formed in the main cavity (102), the air inlets (105) are respectively communicated with ventilation pipes (111), and the other ends of the ventilation pipes (111) are respectively communicated with the ventilation grooves.
6. The energy saving pill drying oven according to claim 5, characterized in that: The side grooves (110) for accommodating the ventilation pipes (111) are formed in one side of the sliding grooves (107).
7. The energy saving pill drying oven according to claim 6, characterized in that: The top of the horizontal rod (109) is a conical structure.
8. The energy saving pill drying oven according to claim 7, characterized in that: The size of the aeration grooves (1092) of the horizontal rod (109) gradually decreases from top to bottom.
9. The energy saving pill drying oven according to claim 8, characterized in that: From top to bottom, the size of the ventilation pipes (111) and the air inlets (105) corresponding to the horizontal rod (109) gradually decreases.
10. The energy saving pill drying oven according to claim 9, wherein: An exhaust pipe (114) is further communicated with one side of the drying cavity (101), and a pressure relief valve (115) is arranged in the exhaust pipe (114).