Multiple drying structure of oral soluble film making machine

Abstract

According to the technical scheme, the multi-drying structure is characterized by comprising a drying oven, a hot air outlet cavity and a bottom plate which are vertically distributed relative to materials are arranged in the drying oven, the bottom plate is used for bearing the materials, the hot air outlet cavity blows hot air to the materials for drying, the multi-drying structure comprises an infrared heating module, and the infrared heating module is used for heating the materials. The upper layer is arranged above the material and is used for heating the material; comprising a heating plate which is arranged below the bottom plate and used for heating the lower layer of the material borne by the bottom plate. The drying device has the advantages of being good in drying effect and high in drying speed.

Description

Technical Field

[0001] This utility model relates to the technical field of oral dissolving film drying equipment, and more specifically to a multi-stage drying structure for an oral dissolving film forming machine. Background Technology

[0002] Oral dissolving films are a relatively new type of oral medication product. Each film is about the size and thickness of a postage stamp. To take medication, place the film on the surface of the tongue or under the tongue; it will dissolve completely in saliva within a short time, quickly completing the medication administration process. It has the advantages of accurate dosage, ease of administration, and rapid absorption, solving the problems of difficult medication administration and inaccurate dosage for children, the elderly, and special populations.

[0003] The processing of oral soluble film generally involves a base film and liquid oral soluble film material. The base film carries the oral soluble film material through an oven for drying, removing excess moisture and forming sheet-like oral soluble film. Currently, traditional ovens use hot air for drying, which takes a long time to fully remove excess moisture, resulting in long drying times and generally low efficiency. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a multi-stage drying structure for an oral dissolution film forming machine, which has the advantages of good drying effect and fast drying speed.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a multi-stage drying structure for an oral dissolving film forming machine, comprising an oven, wherein the oven is provided with a hot air outlet chamber and a bottom plate arranged vertically relative to the material, the bottom plate being used to support the material, and the hot air outlet chamber blowing hot air onto the material for drying, comprising:

[0006] An infrared heating module is installed above the material to heat the upper layer of the material.

[0007] The heating plate is placed close to the bottom plate and is used to heat the lower layer of material supported by the bottom plate.

[0008] The present invention is further configured such that: the hot air outlet cavity has a plurality of air outlets spaced apart along the material conveying direction.

[0009] The present invention is further configured such that: the infrared heating module is configured as an infrared heating tube or an infrared heating plate, which is disposed between the plurality of air outlets.

[0010] This utility model is further configured to include:

[0011] The first temperature sensor is integrated into the heating plate and is used to monitor the temperature of the heating plate;

[0012] The second temperature sensor is located below the infrared heating module and is used to monitor the temperature of the infrared heating module.

[0013] The third temperature sensor is located inside the hot air outlet cavity and is used to monitor the hot air temperature.

[0014] The fourth temperature sensor is located on the side wall of the oven and is used to monitor the overall temperature of the oven.

[0015] The present invention is further configured such that the surface of the base plate is provided with a Teflon coating.

[0016] The present invention is further configured such that: the oven includes an inlet, and an exhaust device is provided outside the inlet, the exhaust device being used to exhaust moisture from the inlet to the outside.

[0017] The present invention is further configured such that: the drying oven includes an outlet, and an air supply device is provided outside the outlet, the air supply device being used to blow air onto the dried material.

[0018] In summary, this utility model has the following beneficial effects:

[0019] This invention incorporates an infrared heating module, which enables rapid preliminary curing of the material's upper layer. This prevents the hot air blown from the hot air outlet from disturbing the material, ensuring a uniform and smooth thickness of the soluble film. Furthermore, since the material has already been rapidly and partially cured by the infrared heating module, the airflow speed can be increased compared to that in traditional drying ovens, accelerating moisture removal and improving drying efficiency.

[0020] Meanwhile, this utility model is equipped with a heating plate on the bottom plate. The heating plate heats the bottom plate and thus fully heats the lower layer of the bottom film and the oral film material, allowing the moisture in the lower layer of the material and inside to be fully discharged upwards. This works in conjunction with the hot air from the hot air outlet chamber to remove moisture, further improving the drying efficiency.

[0021] This invention utilizes multiple heating and drying methods, including infrared radiation, hot air, and a bottom heating plate, to dry the oral film material from all angles. These methods work in a coordinated manner, greatly reducing drying time and improving drying efficiency. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of an oral film forming machine.

[0023] Figure 2 This is a schematic diagram of the oven structure.

[0024] Figure 3 This is a schematic diagram of the cross-sectional structure of the oven at the inlet.

[0025] Figure 4This is a schematic diagram of the cross-sectional structure of the oven at the outlet.

[0026] Figure 5 This is a structural diagram of the air outlet.

[0027] Attached reference numerals: 1. Oven; 101. Inlet; 102. Outlet; 2. Hot air outlet cavity; 201. Air outlet; 3. Base plate; 4. Infrared heating module; 5. Heating plate; 62. Second temperature sensor; 63. Third temperature sensor; 64. Fourth temperature sensor; 8. Exhaust device; 9. Air supply device; 10. Film forming station; 11. Material receiving station. Detailed Implementation

[0028] The present invention will be further described in detail below with reference to the accompanying drawings.

[0029] This embodiment discloses a multi-stage drying structure for an oral dissolution film forming machine, such as... Figure 1-5 As shown, Figure 1 The working principle of the oral soluble film forming machine is as follows: the base film and liquid oral soluble film material are first formed at the film forming station of the machine, and then enter the drying oven 1 from the inlet 101. After drying in the drying oven 1, the material removes excess moisture and then moves out from the outlet 102. The oral soluble film is then collected at the material receiving station 11.

[0030] The oven structure in this embodiment is referenced. Figure 2-3 The drying oven 1 is equipped with a hot air outlet chamber 2 and a bottom plate 3 arranged vertically relative to the material. The bottom plate 3 is used to support the material. The hot air outlet chamber 2 blows hot air onto the material for drying. The hot air outlet chamber 2 generates hot air through an external fan and internal heating pipes. Figure 3 The middle arrow indicates the direction of the hot airflow; the hot air blows downwards and then is evenly distributed onto the material after passing through the guide plate. This embodiment further includes:

[0031] Infrared heating module 4, positioned above the material, heats and initially solidifies the upper layer of the liquid soluble film material. Its advantage lies in the fact that the infrared heating module 4 generates infrared radiation, which is more concentrated and faster than hot air, allowing the upper surface of the liquid soluble film material to quickly solidify. This reduces the material's fluidity, preventing it from being blown away by the downward hot air, resulting in a more uniform film thickness and a smoother surface. Simultaneously, the reduced fluidity of the soluble film material allows for increased hot air velocity, enhancing the overall hot air circulation within the oven, faster moisture removal, and effectively improving drying efficiency.

[0032] Heating plate 5, located below base plate 3, is used to heat the lower layer of material supported by base plate 3. Because heating plate 5 is in close contact with base plate 3, heat is conducted directly from base plate 3 to the bottom film and the lower layer of material, forcing moisture from the bottom and interior of the oral soluble film material to the upper layer. Combined with the blown hot air, this allows the oral soluble film material to be dried more thoroughly, preventing the surface from drying while moisture is locked at the bottom and interior, resulting in better drying effect. Actively forcing out moisture also shortens drying time and further improves drying efficiency.

[0033] Furthermore, refer to Figure 3 The bottom of the hot air outlet chamber 2 has multiple air outlets 201 spaced apart along the conveying direction. Figure 3 The hot air blows downwards in the direction of the arrow. After passing through the guide plate, the hot air is blown out from multiple air outlets 201 to achieve uniform hot air drying. The infrared heating module 4 is set as an infrared heating tube or an infrared heating plate, which is set between multiple air outlets 201. Firstly, it can avoid the infrared heating module 4 directly overheating the blown hot air. Secondly, the structural layout is reasonable. The cross-section of the area between the multiple air outlets 201 is a trapezoidal structure. The infrared heating module 4 is set in the trapezoidal structure. This trapezoidal structure can just achieve the concentration of infrared heating energy, so that the infrared heating module 4 can better heat the upper layer of the material.

[0034] Furthermore, in order to achieve real-time temperature monitoring, this embodiment includes:

[0035] The first temperature sensor is integrated into the heating plate 5 and is used to monitor the temperature of the heating plate 5. The heating plate 5 is a stable and adjustable electric heating plate. The temperature can be set according to the temperature feedback from the first temperature sensor and the actual drying requirements.

[0036] The second temperature sensor 62 is located below the infrared heating module 4 and is used to monitor the temperature of the infrared heating module 4. Similarly, the second temperature sensor 62 can provide feedback on the temperature generated by the infrared heating module 4, making it easy to adjust the heating power of the infrared heating module in a timely manner.

[0037] The third temperature sensor 63 is installed inside the hot air outlet cavity 2 to monitor the hot air temperature;

[0038] The fourth temperature sensor 64 is installed on the side wall of the oven 1 and is used to monitor the overall temperature of the oven.

[0039] The third temperature sensor 63 and the fourth temperature sensor 64 coordinate the control of the hot air temperature and the overall oven temperature. By setting multiple temperature sensors, the temperature of each part of the drying process in the oven can be controlled, ensuring the reliable drying operation of the oven.

[0040] Furthermore, a Teflon coating is provided on the surface of the base plate 3. Since the base film of the oral solution needs to slide on the base plate 3, the Teflon coating reduces friction on the base plate 3 and reduces the resistance to sliding of the base film. At the same time, it does not adsorb the material base film. In addition, the Teflon coating has the advantages of non-stick, high temperature resistance and corrosion resistance, which greatly improves the performance of the base plate 3.

[0041] Furthermore, refer to Figure 3 The oven 1 includes an inlet 101, and an exhaust device 8 is installed outside the inlet 101 to exhaust the moisture at the inlet 101. Because the molten film material has a high humidity when it first enters, during prolonged processing, much of the heat inside the oven dissipates outwards, resulting in a certain temperature at the outlet, which generates moisture. Since there is no hot air circulation outside the oven, the moisture accumulates outside the inlet 101, causing water droplets or even dripping. Therefore, the exhaust device 8 removes the moisture from outside the inlet to avoid moisture accumulation. The exhaust device 8 can be a simple exhaust fan to the outside, or it can be a combined exhaust fan and a collection device for collection.

[0042] Furthermore, the drying oven 1 includes an outlet 102, and an air supply device 9 is installed outside the outlet 102. The air supply device 9 is used to blow air onto the dried material. After processing, the oral soluble film has just come out of the drying oven, and its surface still has hot and humid air. At this time, it is difficult for a person to judge whether the oral soluble film is dried properly. At this time, the air supply device 9 is needed to blow away the hot and humid air that has just been processed, so that it is easier for a person to judge. If the degree of drying is slightly insufficient, the air supply device 9 can also play an auxiliary role by blowing out some moisture to ensure the dryness of the oral soluble film.

[0043] Furthermore, refer to Figure 2 In this embodiment, based on actual drying processing needs, multiple sets of hot air outlet chambers 2 and base plates 3 are set up. Each hot air outlet chamber 2 can be controlled independently, and the corresponding infrared heating modules 4 can also be controlled independently. This allows for increased output or number of infrared heating modules 4 near the inlet 101 to rapidly and initially cure the surface. Subsequently, the air velocity in the hot air outlet chamber 2 can be increased to accelerate air circulation and quickly remove moisture. For infrared heating modules near the outlet 102, the infrared heating modules 4 can be turned off, as surface curing is not required at this point. Therefore, in this embodiment, the hot air outlet chambers, infrared heating modules, and heating plates can be set to be independently controlled, making the equipment more flexible and versatile.

[0044] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the design concept of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A multiple drying structure of a film forming machine for mouth dissolving film, comprising an oven (1), wherein a hot air outlet cavity (2) and a bottom plate (3) are arranged in the oven (1), the bottom plate (3) is used for carrying materials, and the hot air outlet cavity (2) blows hot air to the materials for drying, characterized in that: The application relates to a drying oven (1) comprising: ​ an infrared heating module (4) arranged above the material for heating the upper layer of the material; a heating plate (5) arranged below the bottom plate (3) for heating the lower layer of the material carried by the bottom plate (3).

2. The multiple drying structure of a film forming machine for a mouth dissolving film according to claim 1, characterized in that: The bottom of the hot air outlet cavity (2) is provided with a plurality of air outlets (201) arranged at intervals along the material conveying direction.

3. The multiple drying structure of a film forming machine for a mouth dissolving film according to claim 2, characterized in that: The infrared heating module (4) is arranged between the plurality of air outlets.

4. The multiple drying structure of a film forming machine for a mouth dissolving film according to claim 1, wherein: The application further relates to a drying oven (1) comprising: a first temperature sensor integrated in the heating plate (5) for monitoring the temperature of the heating plate (5); a second temperature sensor (62) arranged below the infrared heating module (4) for monitoring the temperature of the infrared heating module (4); a third temperature sensor (63) arranged in the hot air outlet cavity (2) for monitoring the hot air temperature; a fourth temperature sensor (64) arranged on the side wall of the drying oven (1) for monitoring the overall temperature of the drying oven.

5. The multiple drying structure of a film forming machine for a mouth dissolving film according to claim 1, wherein: The surface of the bottom plate (3) is provided with a Teflon coating.

6. The multiple drying structure of a film forming machine for a mouth dissolving film according to claim 1, wherein: The drying oven (1) comprises an inlet (101), and an air exhaust device (8) is arranged outside the inlet (101), and the air exhaust device (8) is used for exhausting the moisture outside the inlet (101).

7. The multiple drying structure of a film forming machine for a mouth dissolving film according to claim 1, wherein: The drying oven (1) comprises an outlet (102), and an air supply device (9) is arranged outside the outlet (102), and the air supply device (9) is used for blowing air to the dried material.

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