Electric heating efficient film coating machine
By introducing air inlet and exhaust pipes into the film coating machine, combined with heating lamps and ventilation slots, the problems of heat concentration and tablet accumulation are solved, achieving efficient drying and uniform spraying of tablets, and improving the practicality of the equipment.
Patent Information
- Application Number
- CN202422196558.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-09
- Publication Date
- 2025-10-31
- Estimated Expiration
- 2034-09-09
AI Technical Summary
Existing electric heating high-efficiency film coating machines have a simple structure, with heat concentrated at the bottom of the machine, resulting in low tablet drying efficiency, easy tablet slippage and accumulation, uneven spraying, and insufficient practicality.
The design incorporates air inlet and exhaust ducts within the chamber, along with heating lamps and ventilation slots. This allows for the drying of tablets via airflow, while a motor-driven stirring frame prevents tablet accumulation and ensures uniform spraying.
It improves the efficiency of tablet drying and the uniformity of spraying, thus enhancing the practicality of the equipment.
Smart Images

Figure CN223490096U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of film coating machine technology, and in particular to an electrically heated high-efficiency film coating machine. Background Technology
[0002] Film coating machines are used to coat the cores of Chinese and Western medicine tablets with sugar or film. They are a new type of equipment that integrates high-voltage electricity, low-voltage electricity, hydraulics, and pneumatics, and is a modification of the original ordinary sugar coating machine. It uses an electrical automatic control method to spray the coating excipients onto the surface of the tablets with a high-atomization spray gun. At the same time, the tablets move in a continuous and complex trajectory in the coating pan, so that the coating liquid is evenly coated on the core of the tablets. The tablets are dried by electric heating, so that a strong, dense, complete, and smooth surface film is quickly formed on the surface of the tablets.
[0003] Common electric heating high-efficiency film coating machines have a relatively simple structure. Since the electric heating film is installed at the bottom of the machine, most of the heat is concentrated at the bottom, which makes it difficult to dry the tablets efficiently. In addition, the inside of the pot is a smooth surface, and the tablets are easy to slide and accumulate when rotating, resulting in uneven spraying and insufficient practicality. Therefore, we propose an electric heating high-efficiency film coating machine. Utility Model Content
[0004] The purpose of this invention is to address the shortcomings of existing technologies. Common electric heating high-efficiency film coating machines have a relatively simple structure. Because the electric heating film is installed at the bottom of the machine, most of the heat is concentrated at the bottom, making it impossible to efficiently dry the tablets. Furthermore, the inside of the pot is a smooth surface, which makes the tablets easy to slide and accumulate when rotating, resulting in uneven spraying and insufficient practicality.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] An electrically heated high-efficiency film coating machine includes a housing, and a coating mechanism is provided inside the housing.
[0007] The box has a door installed on the front near the top, an air inlet duct installed on the left side near the bottom, an exhaust duct installed on the top near the center, and an internal groove opened inside the box near the bottom, with a wind concentrator installed on the top of the internal groove.
[0008] The coating mechanism includes a roller, a motor with its output end facing the front is provided on the back of the roller, an agitator is provided at the output end of the motor, and a nozzle is provided at the top of the agitator.
[0009] As a preferred embodiment of this utility model, a control panel is installed on the front of the box near the bottom, and a temperature sensor is installed inside the box near the right side. The temperature sensor and the motor are electrically connected to the control panel.
[0010] As a preferred embodiment of this utility model, heating lamp plates are symmetrically installed on the left and right sides near the top of the built-in groove, and the heating lamp plates are electrically connected to the control panel.
[0011] As a preferred embodiment of this utility model, the exhaust duct extends into the interior of the housing and is fixed with an exhaust hood by bolts. The air inlet duct, the built-in groove, the air gathering hood, the housing, the exhaust hood, and the exhaust duct are connected to each other.
[0012] The technical effect of adopting the above-mentioned further solution is as follows: the external equipment introduces airflow into the built-in groove through the air inlet pipe. After being heated by the heating lamp plate, the airflow flows through the air hood and enters the chamber to dry the tablets inside the drum. The external exhaust equipment draws the dried airflow out of the chamber through the exhaust hood, and at the same time, it can also remove the moisture inside the chamber, thus achieving the purpose of drying the tablets.
[0013] As a preferred embodiment of this utility model, the roller is fixed to the box body by bolts, and a plurality of ventilation grooves are formed around the outer periphery of the roller, with a metal mesh fixed inside the ventilation grooves by bolts.
[0014] The technical effect of adopting the above-mentioned further solution is that the air vents and metal mesh can reduce the resistance to airflow, allowing the airflow to enter the inside of the drum to dry the tablets and improve the drying efficiency.
[0015] As a preferred embodiment of this utility model, the motor is fixedly connected to the drum, the agitator is fixedly connected to the output end of the motor, and the agitator is adapted to the drum.
[0016] The technical effect of adopting the above-mentioned further solution is that the motor can drive the stirring frame to rotate, thereby making the stirring frame move the tablets at a uniform speed, preventing the tablets from accumulating and improving practicality.
[0017] As a preferred embodiment of this utility model, a feed pipe is installed at the top of the housing and in front of the exhaust pipe. The feed pipe is connected to the nozzle via a flexible hose, and the nozzle is fixed to the roller by bolts.
[0018] The technical effect of adopting the above-mentioned further solution is that the external feeding equipment injects the coating material into the nozzle through the feeding pipe and hose, and sprays it out from the nozzle to achieve coating of the tablets in the roller.
[0019] Compared with the prior art, the beneficial effects of this utility model are:
[0020] In this invention, through the design of the box and coating mechanism, airflow enters the box through the air inlet pipe and dries the agitated tablets from bottom to top through the ventilation groove. Combined with the exhaust pipe to remove the evaporated moisture, the drying effect is greatly improved. The motor drives the agitator to agitate the tablets in the drum at a uniform speed, preventing the tablets from accumulating and greatly improving the spray uniformity, thus effectively improving practicality. Attached Figure Description
[0021] Figure 1 A schematic diagram of the overall structure of an electrically heated high-efficiency film coating machine provided by this utility model;
[0022] Figure 2 A frontal anatomical view of the overall structure of an electrically heated high-efficiency film coating machine provided by this utility model;
[0023] Figure 3 A side view of the overall structure of an electrically heated high-efficiency film coating machine provided by this utility model;
[0024] Figure 4 This is an enlarged schematic diagram of structure A of an electrically heated high-efficiency film coating machine provided by this utility model.
[0025] Legend: 1. Box body; 101. Box door; 102. Air inlet duct; 103. Exhaust duct; 1031. Exhaust hood; 104. Internal groove; 1041. Heating lamp plate; 105. Air concentrator; 106. Control panel; 107. Temperature sensor; 108. Feed pipe; 2. Coating mechanism; 201. Roller; 2011. Ventilation groove; 2012. Metal mesh; 202. Motor; 203. Agitator; 204. Nozzle. Detailed Implementation
[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.
[0027] To facilitate understanding of this utility model, a more comprehensive description of this utility model will be provided below with reference to relevant embodiments, and several embodiments of this utility model will be given. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of this utility model more thorough and complete.
[0028] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.
[0029] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items. Example
[0030] like Figure 1-4 As shown, this utility model provides a technical solution: an electrically heated high-efficiency film coating machine, including a housing 1, a coating mechanism 2 is provided inside the housing 1, a door 101 is installed on the front of the housing 1 near the top, an air inlet duct 102 is installed on the left side of the housing 1 near the bottom, an exhaust duct 103 is installed on the top of the housing 1 near the center, an internal groove 104 is opened inside the housing 1 near the bottom, and an air concentrator hood 105 is installed on the top of the internal groove 104. The coating mechanism 2 includes a roller 201, a motor 202 with its output end facing the front is provided on the back of the roller 201, an agitator 203 is provided at the output end of the motor 202, and a nozzle 204 is provided on the top of the agitator 203. Example
[0031] like Figure 1-4As shown, a control panel 106 is installed on the front of the enclosure 1 near the bottom. A temperature sensor 107 is installed inside the enclosure 1 near the right side. The temperature sensor 107 and the motor 202 are electrically connected to the control panel 106. The temperature sensor 107 can monitor the temperature changes inside the enclosure 1 in real time and display them on the control panel 106, improving ease of use. Heating lamps 1041 are symmetrically installed on the left and right sides near the top inside the built-in recess 104. The heating lamps 1041 are electrically connected to the control panel 106, and the control panel 106 can control the heating lamps 1041. Heating is applied to heat the airflow, thereby improving the drying effect. The exhaust duct 103 extends into the interior of the chamber 1 and is bolted to an exhaust hood 1031. The air inlet duct 102, the built-in groove 104, the air concentrator 105, the chamber 1, the exhaust hood 1031, and the exhaust duct 103 are connected. External equipment inputs airflow through the air inlet duct 102 into the built-in groove 104. After being heated by the heating lamp plate 1041, the airflow flows through the air concentrator 105 and enters the interior of the chamber 1 to dry the tablets inside the drum 201. The external exhaust equipment then removes the dried tablets from the chamber 1. Airflow is drawn out of the chamber 1 through the exhaust hood 1031, simultaneously removing moisture from inside the chamber 1 to achieve the purpose of drying the tablets. The drum 201 is fixed to the chamber 1 with bolts. Several ventilation slots 2011 are formed around the outer perimeter of the drum 201. A metal mesh 2012 is fixed inside each ventilation slot 2011 with bolts. The ventilation slots 2011 and the metal mesh 2012 reduce airflow resistance, allowing airflow to enter the drum 201 and dry the tablets, thus improving drying efficiency. The motor 202 is fixedly connected to the drum 201, and the stirring frame 203 is connected to the output end of the motor 202. The agitator 203 is fixedly connected to the roller 201. The motor 202 can drive the agitator 203 to rotate, so that the agitator 203 can agitate the tablets at a uniform speed, preventing the tablets from accumulating and improving practicality. The top of the box 1 and the front of the exhaust duct 103 is equipped with a feeding pipe 108. The feeding pipe 108 is connected to the nozzle 204 through a hose. The nozzle 204 is fixed to the roller 201 by bolts. The external feeding equipment injects the coating material into the nozzle 204 through the feeding pipe 108 and the hose, and sprays it out from the nozzle 204 to coat the tablets in the roller 201.
[0032] The working process of this utility model is as follows: When using an electrically heated high-efficiency film coating machine for tablet coating, an appropriate amount of tablets is first placed inside the drum 201, and the chamber door 101 is closed. The external feeding device injects the auxiliary material into the nozzle 204 through the feeding pipe 108 and the hose, and the nozzle 204 sprays the material to coat the medicine inside the drum 201. During the process, the control panel 106 controls the motor 202 to drive the stirring frame 203 to rotate, thereby stirring the medicine inside the drum 201 to prevent the medicine from accumulating and causing uneven spraying. The control panel 106 controls the heating lamp plate 1041 to heat up. The external equipment inputs airflow into the built-in groove 104 through the air inlet pipe 102. After being heated by the heating lamp plate 1041, the airflow flows through the air shroud 105 and enters the chamber 1. The airflow blows the tablets from bottom to top through the ventilation groove 2011 to dry them. With the help of the exhaust pipe 103 to remove the evaporated moisture, the drying effect is greatly improved.
[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. An electrically heated high-efficiency film coating machine, comprising a housing (1), characterized in that: The box (1) is equipped with a coating mechanism (2) inside; A door (101) is installed on the front of the box (1) near the top. An air inlet pipe (102) is installed on the left side of the box (1) near the bottom. An exhaust pipe (103) is installed on the top of the box (1) near the center. An internal groove (104) is opened inside the box (1) near the bottom. An air concentrator (105) is installed on the top of the internal groove (104). The coating mechanism (2) includes a roller (201), a motor (202) with its output end facing the front is provided on the back of the roller (201), an agitator (203) is provided at the output end of the motor (202), and a nozzle (204) is provided at the top of the agitator (203).
2. The electrically heated high-efficiency film coating machine according to claim 1, characterized in that: A control panel (106) is installed on the front of the housing (1) near the bottom. A temperature sensor (107) is installed inside the housing (1) near the right side. The temperature sensor (107) and the motor (202) are electrically connected to the control panel (106).
3. The electrically heated high-efficiency film coating machine according to claim 1, characterized in that: Heating lamp plates (1041) are symmetrically installed on the left and right sides near the top of the built-in groove (104), and the heating lamp plates (1041) are electrically connected to the control panel (106).
4. The electrically heated high-efficiency film coating machine according to claim 1, characterized in that: The exhaust duct (103) extends into the interior of the housing (1) and is fixed with an exhaust hood (1031) by bolts. The air inlet duct (102), the built-in groove (104), the air gathering hood (105), the housing (1), the exhaust hood (1031), and the exhaust duct (103) are connected.
5. The electrically heated high-efficiency film coating machine according to claim 1, characterized in that: The roller (201) is fixed to the box (1) by bolts. Several ventilation grooves (2011) are opened around the outer periphery of the roller (201). A metal mesh (2012) is fixed inside the ventilation grooves (2011) by bolts.
6. The electrically heated high-efficiency film coating machine according to claim 1, characterized in that: The motor (202) is fixedly connected to the drum (201), the agitator (203) is fixedly connected to the output end of the motor (202), and the agitator (203) is adapted to the drum (201).
7. The electrically heated high-efficiency film coating machine according to claim 1, characterized in that: A feed pipe (108) is installed at the top of the housing (1) and in front of the exhaust pipe (103). The feed pipe (108) is connected to the nozzle (204) via a hose. The nozzle (204) is fixed to the roller (201) by bolts.