Drying oven heating device

Abstract

The utility model is suitable for the technical field of plastic film processing, and provides a drying oven heating device which comprises a drying oven body, and a plurality of hot air pipes communicated with one another are evenly distributed on the inner wall of the bottom of the drying oven body. The hot air box is arranged on one side of the drying oven main body; the flow dividing pipe is fixedly communicated with the top of the hot air box, and the air outlet end of the flow dividing pipe extends into the drying oven main body and is fixedly communicated with the corresponding hot air pipe; and the multiple first partition plates are fixedly installed on the hot air box, and air outlet holes are symmetrically formed in the multiple partition plates. According to the drying oven heating device provided by the scheme, the problem that dust is attached to a plastic film product in an existing air heating type drying oven heating device is solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of plastic film processing, in particular to an oven heating device. Background Art

[0002] In the plastics processing industry, multi-layer co-extrusion drawing technology is an important production process, widely used in the production of various plastic films, pipes, plates and other products; this technology can produce plastic products with excellent physical properties and appearance quality through the co-extrusion and drawing of multiple layers of plastic.

[0003] At present, the air-heating oven heating device is widely used in the market. This device heats and dries plastic film through hot air circulation. However, in the actual production process, the air-heating oven heating device has a significant problem: dust in the air will be blown out with the hot air and may adhere to the plastic film product being processed, seriously affecting the appearance quality and performance of the product. Utility Model Content

[0004] The utility model provides an oven heating device, aiming to solve the problem of dust adhering to plastic film products in the existing air-heated oven heating device.

[0005] The utility model is implemented as follows: an oven heating device comprises: an oven main body, a plurality of interconnected hot air ducts evenly distributed on the bottom inner wall of the oven main body; a hot air box, the hot air box is arranged on one side of the oven main body; a diverter pipe, the diverter pipe is fixedly connected to the top of the hot air box, the air outlet end of the diverter pipe extends into the oven main body and is fixedly connected to the corresponding hot air ducts; a plurality of first partitions, a plurality of first partitions are fixedly mounted on the hot air box, and air outlet holes are symmetrically opened on the plurality of partitions; a plurality of electric heating pipes, a plurality of electric heating pipes are arranged in the hot air box; an air supply box, the air supply box is arranged on one side of the hot air box, two second partitions for separating spaces are fixedly installed in the air supply box, and a plurality of filter plates for filtering impurities are provided on the corresponding second partitions; an air supply mechanism for supplying air into the hot air box, the air supply mechanism being arranged on the air supply box.

[0006] Preferably, the air supply mechanism includes: a fan arranged in the air supply box; a connecting pipe fixedly connected to the bottom of the air supply box, the air outlet end of the connecting pipe is fixedly connected to the bottom of the hot air box; an air outlet pipe and an exhaust pipe fixedly installed on the air outlet end and the air inlet end of the fan, respectively, the air outlet end of the air outlet pipe and the air inlet end of the exhaust pipe respectively pass through the corresponding second partition.

[0007] Preferably, an air inlet pipe is fixedly installed on one side of the air supply box, and a slide plate is symmetrically fixedly installed on the top of the corresponding second partition plate and the top inner wall of the air supply box, and the corresponding slide plate is used to assemble the filter plate.

[0008] Preferably, a thermostat is provided on one side of the hot air box, and the thermostat is adapted to the electric heating tube. A temperature sensor is also provided in the oven body, and the temperature sensor is adapted to the thermostat.

[0009] Preferably, an inspection port is provided on one side of the air supply box, a sealed door is provided in the inspection port, a hinge and a door lock are provided on the sealed door, and the hinge is fixedly connected to the air supply box.

[0010] Preferably, a plurality of air outlet holes are symmetrically provided on the hot air pipe, and an electromagnetic valve is also provided on the air inlet end of the corresponding hot air pipe.

[0011] Preferably, a visual observation window is provided on the sealed door, and a speed regulator adapted to the fan is also provided on the sealed door.

[0012] Compared with the related art, the oven heating device provided by the present invention has the following beneficial effects:

[0013] By evenly distributing interconnected hot air ducts on the bottom inner wall of the oven body and arranging hot air ducts with symmetrical air outlet holes, it is ensured that the hot air can be evenly distributed inside the oven, thereby improving the uniformity of heating the plastic film; by arranging a filter plate in the air supply box and setting an independent filter space between the air inlet duct and the air outlet duct, dust and impurities in the air are effectively filtered, preventing dust from adhering to the plastic film, thereby improving product quality; by providing a slide plate and a detachable filter plate, the replacement and maintenance process of the filter plate is simplified, thereby improving the usability and maintenance efficiency of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 A schematic diagram of the three-dimensional structure of an oven heating device provided by the utility model;

[0015] Figure 2 This is a side sectional structural diagram of the present utility model;

[0016] Figure 3 for Figure 2 Schematic diagram of the enlarged structure of part A shown in FIG;

[0017] Figure 4 for Figure 2 Schematic diagram of the enlarged structure of part B shown in FIG.

[0018] Figure numerals: 1. oven body; 2. hot air pipe; 3. hot air box; 4. diverter pipe; 5. first partition; 6. electric heating pipe; 7. air supply box; 8. connecting pipe; 9. second partition; 10. fan; 11. air outlet pipe; 12. exhaust pipe; 13. slide plate; 14. filter plate; 15. air inlet pipe; 16. thermostat. DETAILED DESCRIPTION

[0019] Unless otherwise defined, all technical and scientific terms used herein have the same meanings as commonly understood by those skilled in the art to which this application belongs. The terms used in the specification of the application are only for the purpose of describing specific embodiments and are not intended to limit this application. The terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned drawings are intended to cover non-exclusive inclusions. The terms "first", "second", etc. in the specification and claims of this application or the above-mentioned drawings are used to distinguish different objects, not to describe a specific order.

[0020] References herein to "embodiments" mean that a particular feature, structure, or characteristic described in connection with the embodiments may be included in at least one embodiment of the present application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor does it constitute an independent or alternative embodiment that is mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0021] The present invention provides an oven heating device. Figure 1-4 As shown, the oven heating device includes: an oven main body 1, on the bottom inner wall of which a plurality of interconnected hot air pipes 2 are evenly distributed; a hot air box 3, which is arranged on one side of the oven main body 1; a diverter pipe 4, which is fixedly connected to the top of the hot air box 3, and the air outlet end of the diverter pipe 4 extends into the oven main body 1 and is fixedly connected to the corresponding hot air pipe 2; a plurality of first partitions 5, which are all fixedly mounted on the hot air box 3, and a plurality of the partitions 5 are symmetrically provided with air outlet holes; a plurality of electric heating pipes 6, which are all arranged in the hot air box 3; an air supply box 7, which is arranged on one side of the hot air box 3, and has two second partitions 9 for separating the space fixedly installed in the air supply box 7, and the corresponding second partitions 9 are provided with a plurality of filter plates 14 for filtering impurities; an air supply mechanism for supplying air into the hot air box 3, and the air supply mechanism is arranged on the air supply box 7.

[0022] It's important to note that the widely used air-heating oven heating system currently plays a vital role in the plastic film processing industry. This system evenly transfers heat energy to the plastic film through hot air circulation, achieving both heating and drying. However, despite its excellent heating efficiency and stability, this system has also exposed some significant issues during actual production, particularly dust adhesion. First, we need to understand the basic operating principles of an air-heating oven heating system. It typically consists of a hot air box to generate and heat air; one or more hot air ducts to deliver the hot air to the oven; and one or more fans to circulate the air within the oven. However, since the oven heating system is typically connected to the outside air, dust and impurities in the air are inevitably drawn into the hot air circulation system. This dust and impurities, along with the flow of hot air, can be blown onto the plastic film being processed. This dust adhesion significantly impacts the product's appearance, quality, and performance. The presence of dust can diminish the smooth and neat surface of the plastic film, thereby reducing the product's appearance. In today's pursuit of high quality, such appearance defects are likely to lead to product rejection or return. In addition to the impact on appearance, dust may also have an adverse effect on the performance of plastic film. For example, it may reduce key indicators such as the transparency, mechanical strength or electrical performance of the film. Due to the increase in scrap rate and the decline in product quality caused by dust adhesion, companies may need to invest more resources to deal with and repair these problems, thereby increasing production costs. The accumulation of dust may also cause damage to the oven heating device itself. For example, dust may clog key components such as the hot air pipe 2 and the fan 10, resulting in reduced equipment performance and increased failure rate, thereby increasing the maintenance cost of the equipment. Therefore, in order to solve the above problems, it is necessary to design a new type of oven heating device.

[0023] In this embodiment, the oven body 1 serves as the main space for heating and drying. Multiple interconnected hot air pipes 2 are evenly distributed on the inner wall of its bottom to ensure that the hot air can be evenly distributed inside the oven. The hot air box 3 is located on one side of the oven body 1 and is used to generate and heat air. Multiple electric heating pipes 6 are installed inside the hot air box 3 to quickly and effectively heat the air. The diverter pipe 4 serves as a connecting pipe between the hot air box 3 and the hot air pipes 2, evenly transporting the heated hot air to each hot air pipe 2. The first partition 5 is located inside the hot air box 3 and is symmetrically provided with air outlets for adjusting and controlling the direction and flow of the hot air. The air supply box 7 is located on one side of the hot air box 3 and serves as the installation space for the air supply mechanism. The interior of the air supply box 7 is divided into different spaces by the second partition 9, in which a filter plate 14 (dust filter plate, activated carbon plate, etc.) for filtering impurities is provided; when working, the electric heating tube 6 heats the air in the hot air box 3, and the hot air enters the diversion pipe 4 through the air outlet of the first partition 5, and is then evenly sent into the oven body 1 through the hot air pipe 2 to heat and dry the plastic film. At the same time, the air supply mechanism draws air from the air supply box 7, filters it through the filter plate 14, and then sends it to the hot air box 3 to ensure the cleanliness of the hot air; by setting the air supply box 7 and the filter plate 14, the dust and impurities in the air can be effectively filtered out to prevent them from being brought into the hot air circulation system, thereby avoiding the problem of dust adhering to the plastic film and improving the appearance quality and performance of the product; since the scrap rate and product quality decline caused by dust adhesion are reduced, the company can reduce the resource investment for processing and repairing these problems, thereby reducing production costs; by filtering the dust and impurities in the air, the blockage and damage of these impurities to key components such as the hot air pipe 2 and the fan 10 can be reduced, thereby extending the service life of the equipment and reducing maintenance costs; the clean hot air circulation can ensure the uniformity and stability of the temperature inside the oven, thereby improving the heating efficiency and stability of the equipment.

[0024] In a further preferred embodiment of the present invention, the air supply mechanism includes: a fan 10 arranged in the air supply box 7; a connecting pipe 8 fixedly connected to the bottom of the air supply box 7, and the air outlet end of the connecting pipe 8 is fixedly connected to the bottom of the hot air box 3; an air outlet pipe 11 and an exhaust pipe 12 fixedly installed on the air outlet end and the air inlet end of the fan 10, respectively, and the air outlet end of the air outlet pipe 11 and the air inlet end of the exhaust pipe 12 respectively pass through the corresponding second partition 9.

[0025] In this embodiment, the detailed structure and function of the air supply mechanism have been further clarified and optimized; specifically, the air supply mechanism includes the following key parts: the fan 10 is arranged in the air supply box 7, serving as the power source of the entire air supply system. Its main function is to draw in external air and generate pressure through the rotation of the internal blades to form an airflow; the connecting pipe 8 is fixedly connected to the bottom of the air supply box 7, and its air outlet end is fixedly connected to the bottom of the hot air box 3. In this way, the air flow generated by the fan 10 can be directly sent into the hot air box 3 through the connecting pipe 8, providing the hot air box 3 with a steady supply of air; the air outlet pipe 11 and the exhaust pipe 12; these two pipes are fixedly installed at the air outlet end and the air inlet end of the fan 10 respectively. The air outlet end of the air outlet pipe 11 and the air inlet end of the exhaust pipe 12 respectively pass through the corresponding second partition 9. In this way, the airflow generated by fan 10 is first drawn in through exhaust duct 12, pressurized by fan 10, and then discharged through outlet duct 11. Because outlet duct 11 and exhaust duct 12 pass through second partition 9, they are isolated from the space within supply air box 7. Thus, when fan 10 is operating, external air is first drawn into a specific area of ​​supply air box 7 (delimited by second partition 9) through exhaust duct 12. It is then filtered by filter plate 14 before being discharged through outlet duct 11 into hot air box 3. This process effectively removes dust and impurities from the air, ensuring the cleanliness of the air entering hot air box 3. The independent air inlet and outlet duct design ensures more stable operation of fan 10, unaffected by fluctuations in external air pressure or temperature. This design also reduces airflow resistance in the system, improving overall system efficiency. Because outlet duct 11 and exhaust duct 12 are fixed, they can be easily removed from the system for cleaning or replacement. This greatly facilitates the daily maintenance and upkeep of the equipment.

[0026] In a further preferred embodiment of the present invention, an air inlet pipe 15 is fixedly installed on one side of the air supply box 7, and a slide plate 13 is symmetrically fixedly installed on the top of the corresponding second partition plate 9 and the top inner wall of the air supply box 7, and the corresponding slide plate 13 is used to assemble the filter plate 14.

[0027] In this embodiment, the structure of the air supply box 7 has been optimized, specifically by adding an air inlet duct 15 and a chute plate 13 to further enhance the performance and convenience of the device. The air inlet duct 15 is fixedly mounted on one side of the air supply box 7, serving as a channel for external air to enter the air supply box 7. Through the air inlet duct 15, the fan 10 draws fresh air from the external environment, providing a continuous source of hot air for the hot air box 3. The design of the air inlet duct 15 ensures that air enters the air supply box 7 without any obstruction, ensuring smooth and stable airflow. Furthermore, the position and size of the air inlet duct 15 can be adjusted according to actual needs to accommodate different working environments and conditions. The chute plates 13 are symmetrically fixed to the top of the second partition 9 and the top inner wall of the air supply box 7. The main function of these chute plates 13 is to mount the filter plate 14, providing a stable and easy-to-install support structure for the filter plate 14. The chute plates 13 allow the filter plate 14 to be easily inserted or removed without disassembling the entire air supply box 7 or the second partition 9. This design greatly simplifies the replacement and maintenance process of the filter plate 14, improving the equipment's usability and maintenance efficiency. Furthermore, the structural design of the chute plate 13 ensures that the filter plate 14 remains stable and secure during assembly, preventing it from shifting or falling off due to airflow impact when the blower 10 is operating. The coordinated use of the air inlet pipe 15 and the filter plate 14 ensures that the air entering the hot air box 3 is effectively filtered to remove dust and impurities. This helps improve the cleanliness of the air inside the hot air box 3 and prevents dust from adhering to the plastic film, thereby enhancing the product's appearance, quality, and performance. The design of the chute plate 13 makes the replacement and maintenance of the filter plate 14 simpler and more convenient. Users can easily remove and replace the filter plate 14 by simply opening the cover of the air supply box 7, without having to disassemble the entire air supply box 7 or the second partition 9. This significantly saves maintenance time and costs, improving the equipment's availability and reliability.

[0028] In a further preferred embodiment of the present invention, a thermostat 16 is provided on one side of the hot air box 3, and the thermostat 16 is adapted to the electric heating tube 6. A temperature sensor 9 is also provided in the oven body 1, and the temperature sensor 9 is adapted to the thermostat 16.

[0029] In this embodiment, the control and monitoring functions of the oven heating device have been enhanced, specifically through a thermostat 16 located on one side of the hot air box 3 and a temperature sensor 9 located within the oven body 1. The thermostat 16 is located on one side of the hot air box 3 and is compatible with the electric heating tube 6. The thermostat 16 is a key control component, its primary function being to automatically adjust the heating power of the electric heating tube 6 based on real-time temperature data provided by the temperature sensor 9, thereby achieving precise control of the oven's internal temperature. This precise control by the thermostat 16 ensures that the oven's internal temperature remains within a set range, preventing significant fluctuations due to changes in external conditions. This is crucial for ensuring the processing quality of plastic film and improving production efficiency. The temperature sensor 9 is located within the oven body 1 and is compatible with the thermostat 16. The temperature sensor 9's primary function is to monitor the oven's internal temperature in real time and provide feedback to the thermostat 16. The accuracy and reliability of the temperature sensor 9 directly impact the oven's internal temperature control performance. In the present invention, a high-precision, high-stability temperature sensor 9 is used to ensure the accuracy and real-time performance of the temperature data and provide reliable input data for the temperature controller 16. By using the temperature controller 16 and the temperature sensor 9 in conjunction with each other, precise control of the internal temperature of the oven can be achieved.

[0030] In a further preferred embodiment of the present invention, an inspection port is provided on one side of the air supply box 7 , a sealed door is provided in the inspection port, a hinge and a door lock are provided on the sealed door, and the hinge is fixedly connected to the air supply box 7 .

[0031] In this embodiment, the maintenance convenience of the air supply box 7 is optimized, which is specifically reflected in the inspection port provided on one side of the air supply box 7 and the design of the sealing door inside the inspection port. An inspection port is provided on one side of the air supply box 7, which provides a convenient passage for maintenance personnel, so that they can inspect, repair or replace the internal components without disassembling the entire air supply box 7. A sealing door is provided inside the inspection port. This sealing door can not only ensure the sealing of the air supply box 7 when the inspection port is not in use and prevent dust or impurities from entering the air supply box 7, but can also be easily opened for maintenance when needed. A hinge and a door lock are provided on the sealing door. The hinge is used to fix the sealing door to the air supply box 7, ensuring that the sealing door can fit tightly against the air supply box 7 when closed to maintain sealing. The door lock is used to lock the sealing door to prevent non-maintenance personnel from misoperating or children from opening the sealing door, thereby increasing safety.

[0032] In a further preferred embodiment of the present invention, a plurality of air outlet holes are symmetrically provided on the hot air pipe 2 , and an electromagnetic valve is also provided on the air inlet end of the corresponding hot air pipe 2 .

[0033] In this embodiment, the design of the hot air pipe 2 has been further optimized and improved; a number of air outlet holes are symmetrically opened on the hot air pipe 2. The function of these air outlet holes is to evenly distribute the hot air into the interior of the oven, thereby ensuring that the plastic film can be evenly heated, improving the heating effect and product quality; an electromagnetic valve is provided on the air inlet end of the hot air pipe 2. The electromagnetic valve is a controllable switching device. By controlling its open and closed state, the amount of hot air entering the hot air pipe 2 can be accurately adjusted, thereby achieving precise control of the temperature in the oven.

[0034] In a further preferred embodiment of the present invention, a visual observation window is provided on the sealing door, and a speed regulator adapted to the fan 10 is also provided on the sealing door.

[0035] In this embodiment, the design of the sealed door has been further optimized, specifically by providing a visual observation window and a speed regulator compatible with the fan 10. The sealed door is provided with a visual observation window. This observation window is made of a transparent material, such as glass or plastic, allowing the user to directly observe the conditions inside the air supply box 7, such as the operating status of the fan 10 and the cleanliness of the filter plate 14, without opening the sealed door. The sealed door is also provided with a speed regulator compatible with the fan 10. The speed regulator is a device used to adjust the speed of the fan 10. The user can conveniently adjust the speed of the fan 10 by rotating the knob or button of the speed regulator, thereby controlling the air flow and temperature within the oven.

[0036] In summary, the oven heating device provided by the present technical solution, by introducing structures such as the air supply box 7 and the filter plate 14, effectively solves the problem of dust adhesion while maintaining efficient heating and drying capabilities, thereby improving product quality and equipment performance and reducing production costs and maintenance costs.

[0037] Compared with the related art, by evenly distributing interconnected hot air pipes 2 on the bottom inner wall of the oven body 1 and symmetrically setting hot air pipes with air outlet holes, it is ensured that the hot air can be evenly distributed inside the oven, thereby improving the uniformity of heating the plastic film; by setting a filter plate 14 in the air supply box 7 and setting an independent filter space between the air inlet pipe 15 and the air outlet pipe 11, dust and impurities in the air are effectively filtered, preventing dust from adhering to the plastic film, and improving product quality; by setting a slide plate 13 and a detachable filter plate 14, the replacement and maintenance process of the filter plate is simplified, thereby improving the usability and maintenance efficiency of the equipment.

[0038] It is worth noting that the circuits, electronic components and modules involved in the present invention are all existing technologies and can be fully implemented by those skilled in the art. Needless to say, the content protected by the present invention does not involve improvements to software and methods.

[0039] In the several embodiments provided in this application, it should be understood that the disclosed devices can be implemented in other ways. For example, the device embodiments described above are merely illustrative. For example, the division of the above-mentioned units is only a logical function division. In actual implementation, there may be other division methods, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or communication connection shown or discussed can be through some interfaces, and the indirect coupling or communication connection between devices or units can be in the form of telecommunications or other forms.

[0040] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the scope of protection of the present invention. Obviously, the embodiments described are only some embodiments of the present invention, rather than all embodiments. Based on these embodiments, all other embodiments obtained by ordinary technicians in this field without making any creative work are within the scope to be protected by the present invention. Although the present invention has been described in detail with reference to the above embodiments, ordinary technicians in this field can still combine, add, delete or make other adjustments to the features in the various embodiments of the present invention according to the circumstances without conflict, without making any creative work, so as to obtain different other technical solutions that do not deviate from the concept of the present invention in essence, and these technical solutions also fall within the scope to be protected by the present invention.

Claims

1. An oven heating device, characterized in that: include: An oven body, wherein a plurality of interconnected hot air pipes are evenly distributed on the inner wall of the bottom of the oven body; A hot air box, the hot air box being arranged on one side of the oven body; A shunt pipe, the shunt pipe is fixedly connected to the top of the hot air box, the air outlet end of the shunt pipe extends into the oven body and is fixedly connected to the corresponding hot air pipe; A plurality of first baffles, each of which is fixedly mounted on the hot air box, and each of which has air outlet holes symmetrically formed thereon; A plurality of electric heating tubes, wherein the plurality of electric heating tubes are all arranged in the hot air box; An air supply box, the air supply box being arranged on one side of the hot air box, wherein two second partitions for separating the space are fixedly installed in the air supply box, and a plurality of filter plates for filtering impurities are arranged on the corresponding second partitions; An air supply mechanism for supplying air into the hot air box, wherein the air supply mechanism is arranged on the air supply box.

2. The oven heating device according to claim 1, characterized in that: The air supply mechanism comprises: A fan disposed in the air supply box; A connecting pipe fixedly connected to the bottom of the air supply box, wherein the air outlet end of the connecting pipe is fixedly connected to the bottom of the hot air box; An air outlet pipe and an air exhaust pipe are respectively fixedly mounted on the air outlet end and the air inlet end of the fan, and the air outlet end of the air outlet pipe and the air inlet end of the air exhaust pipe respectively pass through the corresponding second partition plate.

3. The oven heating device according to claim 1, characterized in that: An air inlet pipe is fixedly installed on one side of the air supply box, and a slide plate is symmetrically fixedly installed on the top of the corresponding second partition plate and the top inner wall of the air supply box. The corresponding slide plate is used to assemble the filter plate.

4. The oven heating device according to claim 1, characterized in that: A temperature controller is provided on one side of the hot air box, and the temperature controller is adapted to the electric heating tube. A temperature sensor is also provided in the oven body, and the temperature sensor is adapted to the temperature controller.

5. The oven heating device according to claim 1, wherein: An inspection port is provided on one side of the air supply box, a sealing door is provided in the inspection port, a hinge and a door lock are provided on the sealing door, and the hinge is fixedly connected to the air supply box.

6. The oven heating device according to claim 1, characterized in that: The hot air pipe is symmetrically provided with a plurality of air outlet holes, and the corresponding air inlet end of the hot air pipe is also provided with an electromagnetic valve.

7. The oven heating device according to claim 5, characterized in that: The sealing door is provided with a visual observation window, and the sealing door is also provided with a speed regulator adapted to the fan.

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