Film preheating box

Abstract

The utility model discloses a film preheating box, which comprises a box body, a heating device, a heating device and a heating device, wherein the box body is internally provided with a preheating space; the multiple conveying rollers are arranged on the box body and located in the preheating space, the conveying rollers are alternately distributed up and down, the thin film is sequentially wound on the outer surfaces of the conveying rollers, and the conveying rollers are used for conveying the thin film; the air uniformizing mechanism is arranged on the box body and located in the preheating space, the air uniformizing mechanism comprises an air driving assembly, an air guiding assembly and a heating assembly, the air driving assembly is arranged on the box body, the air guiding assembly is arranged on the upper inner side wall and the lower inner side wall of the box body and located on one side of the air driving assembly, and a plurality of hot air channels are separated by the air guiding assembly; the heating assembly is arranged in the preheating space. In the process that the conveying rollers convey the thin film, the heating assembly heats air in the box body, the air driving assembly drives hot air in the box body to flow, then the hot air passes through the hot air channels spaced by the air uniformizing assembly, the hot air is evenly blown open and flows through the thin film, and then the thin film is evenly preheated.

Description

Technical Field

[0001] The utility model relates to the technical field of film coating equipment, in particular to a film preheating box. Background Art

[0002] Coating machines are mainly used for surface coating production of films, papers, etc. This machine coats the rolled substrate with a layer of glue, coating or ink with specific functions, and then rewinds it after drying. Before coating, in order to ensure the surface quality of the film product, it needs to be preheated. The heating position of the existing preheating box is generally fixed, resulting in uneven preheating effect. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model provides a film preheating box that can preheat the film uniformly.

[0004] According to the film preheating box of the embodiment of the utility model, the film preheating box comprises:

[0005] A box body, wherein a preheating space is arranged in the box body, a film inlet is arranged at one end of the box body, and a film outlet is arranged at the other end of the box body, and the film is transported in the preheating space;

[0006] a plurality of conveying rollers, the plurality of conveying rollers being arranged on the box body and located in the preheating space, the conveying rollers being alternately arranged up and down, the film being sequentially wound around the outer surfaces of the conveying rollers, and the conveying rollers being used to convey the film; and

[0007] The wind uniforming mechanism is arranged on the box body and located in the preheating space. The wind uniforming mechanism includes a wind driving component, an air guiding component and a heating component. The wind driving component is arranged on the box body, the air guiding component is arranged on the upper and lower inner walls of the box body and located on one side of the wind driving component, the air guiding component separates a plurality of hot air ducts, and the heating component is arranged in the preheating space.

[0008] The film preheating box according to the embodiment of the utility model has at least the following beneficial effects: when the conveying roller conveys the film, the heating component heats the air in the box, and the wind driving components located on the upper and lower sides of the box drive the hot air in the box to flow, and then the hot air passes through the hot air duct separated by the uniform wind component, the hot air is evenly blown and flows through the film, thereby evenly preheating the film.

[0009] According to some embodiments of the utility model, the driving assembly is arranged on the upper and lower sides of the box body, the driving assembly includes a driving member and an axial flow fan, the driving member is arranged on the box body, the output end of the driving member is connected to the axial flow fan, and the axial flow fan is arranged in the box body and is located on one side of the air guide assembly.

[0010] According to some embodiments of the utility model, the air guide assembly includes a plurality of air guide plates, which are arranged at intervals to form the hot air duct between adjacent air guide plates, and the hot air duct extends along a first direction and then is guided by the air guide plates to extend along a vertical direction.

[0011] According to some embodiments of the utility model, the air guide assembly further includes a guide bar, which is arranged on the inner wall of the box body and located between the air guide assemblies distributed up and down, and the guide bar is provided with two guide surfaces, which are arranged opposite to each other.

[0012] According to some embodiments of the present invention, the guide surface is arranged in a circular arc.

[0013] According to some embodiments of the present invention, the heating assembly includes a plurality of heating rods, and the heating rods are evenly distributed in the hot air duct or at the inlet and outlet of the hot air duct.

[0014] According to some embodiments of the present utility model, the conveying roller is a hot water roller, one end of the conveying roller is connected to an external hot water source, and the other end of the conveying roller is connected to an external drainage channel.

[0015] According to some embodiments of the utility model, the box body is provided with a heat-insulating layer, and a heat-insulating medium is provided in the heat-insulating layer.

[0016] According to some embodiments of the present utility model, the box body is provided with an inspection opening, and the inspection opening is provided with an inspection door.

[0017] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0019] Figure 1 It is a schematic side view of the interior of the film preheating box of an embodiment of the utility model;

[0020] Figure 2 for Figure 1 A schematic rear view of the interior of the film preheating box is shown;

[0021] Figure 3 for Figure 1 A schematic top view of the interior of a film preheating box is shown.

[0022] Reference numerals:

[0023] Box body 10; preheating space 11; insulation layer 12;

[0024] Conveying roller 20;

[0025] Wind uniformity mechanism 30 ; wind driving assembly 31 ; driving member 311 ; axial flow fan 312 ; wind guide assembly 32 ; wind guide plate 321 ; guide strip 322 ; guide surface 3221 ; heating assembly 33 ; heating rod 331 . DETAILED DESCRIPTION

[0026] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0027] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0028] In the description of the present utility model, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood to exclude the number itself, and "above", "below", "within" etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0029] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0030] Reference Figures 1 to 3According to the film preheating box of the embodiment of the utility model, the film preheating box includes a box body 10, a plurality of conveying rollers 20 and a uniform wind mechanism 30. A preheating space 11 is arranged in the box body 10, a film inlet is arranged at one end of the box body 10, and a film outlet is arranged at the other end of the box body 10, and the film is transported in the preheating space 11; a plurality of conveying rollers 20 are arranged on the box body 10 and located in the preheating space 11, and the conveying rollers 20 are alternately distributed up and down, and the film is sequentially wound around the outer surface of the conveying rollers 20, and the conveying rollers 20 are used to transport the film; the uniform wind mechanism 30 is arranged on the box body 10 and located in the preheating space 11, and the uniform wind mechanism 30 includes a wind driving component 31, a wind guiding component 32 and a heating component 33, the wind driving component 31 is arranged on the box body 10, the wind guiding component 32 is arranged on the upper and lower inner walls of the box body 10 and located on one side of the wind driving component 31, the wind guiding component 32 separates a plurality of hot air ducts, and the heating component 33 is arranged in the preheating space 11.

[0031] Specifically, the box body 10 constitutes the main structure of the preheating box, and a preheating space 11 is arranged inside the box body. This preheating space 11 is the main area for preheating the film. A film inlet is arranged at one end of the box body 10, and a film outlet is arranged at the other end. The film enters the preheating space 11 from the inlet, and is sent out from the outlet after preheating. In the preheating space 11, a plurality of conveying rollers 20 are arranged. These conveying rollers 20 are alternately distributed up and down, forming a channel for film conveying. During the preheating process, the film will be sequentially wound around the outer surface of the conveying roller 20, and the continuous conveying of the film in the preheating space 11 is realized by the rotation of the conveying roller 20. The uniform wind mechanism 30 is mainly composed of a wind driving component 31, a wind guiding component 32 and a heating component 33. The wind driving component 31 is arranged on the box body 10, and its main function is to generate wind flow. Under the action of the wind driving component 31, a stable wind flow will be formed in the preheating space 11, providing necessary wind support for uniform heating of the film. The air guide component 32 is arranged on the upper and lower inner walls of the box body 10 and is located on one side of the wind driving component 31. The main function of the air guide component 32 is to guide and distribute the wind flow generated by the wind driving component 31 so that a uniform hot air distribution is formed in the preheating space 11. In order to achieve this function, the air guide component 32 is specially designed to be able to separate a number of hot air ducts, which can ensure the uniform distribution of hot air in the preheating space 11. The heating component 33 is arranged in the preheating space 11, and its main function is to heat the wind flow. Under the action of the heating component 33, the wind flow in the preheating space 11 will be heated to an appropriate temperature, thereby providing a uniform preheating effect for the film.

[0032] Therefore, the film preheating box according to the embodiment of the utility model has at least the following beneficial effects: when the conveying roller 20 conveys the film, the heating component 33 heats the air in the box body 10, and the wind driving components 31 located on the upper and lower sides of the box body 10 drive the hot air to flow in the box body 10, and then pass through the hot air duct separated by the uniform wind component, the hot air is evenly blown and flows through the film, thereby uniformly preheating the film.

[0033] Reference Figures 1 to 3 In some embodiments of the utility model, the driving component is arranged on the upper and lower sides of the box body 10, and the driving component includes a driving member 311 and an axial flow fan 312. The driving member 311 is arranged on the box body 10, and the output end of the driving member 311 is connected to the axial flow fan 312. The axial flow fan 312 is arranged in the box body 10 and is located on one side of the air guide component 32.

[0034] Specifically, the drive assembly is arranged on the upper and lower sides of the housing 10. This layout helps to ensure the uniform distribution of the wind flow in the preheating space 11, while improving the preheating efficiency. The drive assembly mainly includes a drive member 311 and an axial flow fan 312. The drive member 311, such as a motor or other rotating drive device, is firmly arranged on the housing 10. The output end of the drive member 311 is connected to the axial flow fan 312, thereby driving the axial flow fan 312 to rotate. The axial flow fan 312 is arranged in the housing 10 and is located on one side of the air guide assembly 32. When the drive member 311 is started, it drives the axial flow fan 312 to rotate at a high speed. The rotation of the axial flow fan 312 generates a strong wind flow, which is then guided and distributed by the air guide assembly 32 to form a uniform hot air distribution to preheat the film. The drive assembly works in coordination with the air guide assembly 32, the heating assembly 33, etc. to ensure that the film is subjected to uniform and stable hot air during the preheating process, thereby improving the preheating effect and the film quality.

[0035] Reference Figures 1 to 3 In some embodiments of the present invention, the air guide assembly 32 includes a plurality of air guide plates 321, and the air guide plates 321 are arranged at intervals to form a hot air duct between adjacent air guide plates 321. The hot air duct extends along a first direction and then extends along a vertical direction after being guided by the air guide plates 321.

[0036] Specifically, the air guide assembly 32 includes a plurality of air guide plates 321. These air guide plates 321 are arranged at intervals to form a specific wind flow guiding structure. Hot air ducts are formed between adjacent air guide plates 321, and these hot air ducts, under the guidance of the air guide plates 321, achieve precise control and distribution of hot air. In the initial stage, the hot air duct extends in a first direction (horizontal direction as shown in the figure). Subsequently, under the guidance of the air guide plates 321, the hot air duct turns and extends in a vertical direction. This design enables the hot air to achieve multi-dimensional flow in the preheating space 11, thereby ensuring that the film can be evenly and comprehensively heated during the preheating process. Through the air guide assembly 32, not only is the uniform distribution of hot air in the preheating space 11 achieved, but the utilization rate and preheating efficiency of the hot air are also effectively improved. At the same time, the interval distribution of the air guide plates 321 also enhances the structural stability and durability of the preheating box.

[0037] Furthermore, in some embodiments of the present invention, the air guide assembly 32 also includes a guide bar 322, which is arranged on the inner wall of the box body 10 and located between the upper and lower distributed air guide assemblies 32, and the guide bar 322 is provided with two guide surfaces 3221, and the two guide surfaces 3221 are arranged opposite to each other.

[0038] Specifically, in addition to a number of air guide plates 321, the air guide assembly 32 also includes a guide bar 322. These guide bars 322 are carefully arranged on the inner wall of the box body 10 and are located between the air guide assemblies 32 distributed up and down. The layout of the air guide assembly 32 of the utility model embodiment is intended to guide the hot air to flow more orderly in the preheating space 11, while guiding the air flow to flow through the film. The unique design of the guide bar 322 is reflected in its two guide surfaces 3221, which are arranged in opposition to each other. This design of double guide surfaces 3221 can reduce the resistance of the hot air during the flow process on the one hand, and on the other hand, it also helps to guide the hot air more evenly to the film of the preheating space 11. In the actual working process, when the hot air generated by the wind drive assembly 31 flows through the guide bar 322, it will be guided by its two opposite guide surfaces 3221, so as to flow along a predetermined path. This guiding effect not only enhances the stability of the hot air flow, but also effectively improves the heat exchange efficiency between the hot air and the film, thereby improving the preheating effect. Furthermore, the guide surface 3221 is arranged in an arc shape.

[0039] Reference Figure 1 to Figure 2In some embodiments of the present invention, the heating assembly 33 includes a plurality of heating rods 331, and the heating rods 331 are evenly distributed in the hot air duct or at the inlet and outlet of the hot air duct. Specifically, the heating assembly 33 includes a plurality of heating rods 331. These heating rods 331 are carefully designed and arranged to ensure that they can be evenly distributed in the hot air duct or at the inlet and outlet of the hot air duct. This layout is intended to maximize the contact area between the heating rods 331 and the hot air flowing through, thereby improving the heat exchange efficiency. In addition, the number, position and power of the heating rods 331 are accurately calculated to ensure that the temperature in the preheating space 11 can reach the preset value and remain evenly distributed. When the hot air flows through the heating rods 331, the heating rods 331 will heat it to an appropriate temperature, and then the hot air will be evenly blown to the film, thereby achieving uniform preheating of the film. Furthermore, the heating rods 331 also have a high heating speed and thermal efficiency, and can quickly raise the temperature in the preheating space 11 to the required level. Meanwhile, the heating rod 331 also has good durability and stability, and can work continuously for a long time without failure.

[0040] Reference Figure 1 to Figure 2 In some embodiments of the utility model, the conveying roller 20 is a hot water roller, one end of the conveying roller 20 is connected to an external hot water source, and the other end of the conveying roller 20 is connected to an external drainage channel. Specifically, the conveying roller 20 is designed as a hot water roller. The conveying roller 20 not only undertakes the task of conveying the film, but also has a heating function, combining the two processes of conveying and heating, thereby further improving the preheating efficiency. In order to realize the heating function of the hot water roller, its structural design is also optimized accordingly. One end of the hot water roller is connected to an external hot water source, so that hot water can continuously flow into the roller, providing a stable heat source for heating. At the same time, the other end of the hot water roller is connected to an external drainage channel to ensure that the hot water can be discharged in time after flowing through the roller body, thereby maintaining the constant water temperature in the roller and the smooth circulation of hot water. The hot water roller directly contacts the film through its outer surface and transfers heat to the film. Since the heating method of the hot water roller is uniform and stable, it can ensure that the film obtains a uniform preheating effect during the conveying process.

[0041] Reference Figures 1 to 3In some embodiments of the utility model, the box body 10 is provided with a heat-insulating layer 12, and a heat-insulating medium is provided in the heat-insulating layer 12. Specifically, a heat-insulating layer 12 is provided outside or inside the box body 10 (depending on actual needs). The heat-insulating medium of this heat-insulating layer 12 is made of a material with excellent heat-insulating properties, such as polymer foam, glass fiber or other professional heat-insulating materials. These materials can effectively block the transfer and loss of heat, ensuring that the temperature in the preheating space 11 can be maintained at a set level. The presence of the heat-insulating medium further enhances the heat-insulating effect of the heat-insulating layer 12, so that the box body 10 can better maintain temperature stability during the preheating process. Through this design, the film preheating box can effectively reduce heat loss during the preheating process, thereby improving the preheating efficiency and energy utilization. This not only helps to reduce production costs, but also plays a positive role in promoting environmental protection.

[0042] In some embodiments of the utility model, the box 10 is provided with an inspection port (not shown in the figure), and an inspection door is provided at the inspection port. The box 10 is provided with one or more inspection ports at appropriate positions. The size and position of these inspection ports are carefully designed to ensure that sufficient operating space is provided for maintenance personnel without affecting the overall structure of the box 10 and the preheating effect. Through the inspection port, maintenance personnel can easily access various components inside the preheating box, such as the conveying roller 20, the heating component 33, the uniform wind mechanism 30, etc., so as to carry out necessary inspections, repairs or replacements. In order to further improve the convenience and safety of maintenance, an inspection door is also provided at the inspection port. These inspection doors usually adopt a design that is easy to open and close, such as a hinged type, a sliding type, etc., so that maintenance personnel can quickly and easily enter or exit the maintenance state. At the same time, the inspection door also has a certain sealing performance to ensure that the interior of the preheating box can be effectively isolated from the external environment in the closed state, thereby maintaining the temperature stability and cleanliness of the preheating space 11. In addition, the inspection door may also be equipped with additional functions such as safety locks or alarm devices to ensure that unauthorized personnel cannot open the inspection door at will during equipment operation, thereby avoiding possible safety accidents or operational errors.

[0043] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A film preheating box, characterized in that: include: A box body, wherein a preheating space is arranged in the box body, a film inlet is arranged at one end of the box body, and a film outlet is arranged at the other end of the box body, and the film is transported in the preheating space; a plurality of conveying rollers, the plurality of conveying rollers being arranged on the box body and located in the preheating space, the conveying rollers being alternately arranged up and down, the film being sequentially wound around the outer surfaces of the conveying rollers, and the conveying rollers being used to convey the film; and The wind uniforming mechanism is arranged on the box body and located in the preheating space. The wind uniforming mechanism includes a wind driving component, an air guiding component and a heating component. The wind driving component is arranged on the box body, the air guiding component is arranged on the upper and lower inner walls of the box body and located on one side of the wind driving component, the air guiding component separates a plurality of hot air ducts, and the heating component is arranged in the preheating space.

2. The film preheating box according to claim 1, characterized in that: The wind drive assembly is arranged on the upper and lower sides of the box body, and the wind drive assembly includes a driving member and an axial flow fan. The driving member is arranged on the box body, and the output end of the driving member is connected to the axial flow fan. The axial flow fan is arranged in the box body and is located on one side of the air guide assembly.

3. The film preheating box according to claim 1, characterized in that: The air guide assembly includes a plurality of air guide plates, which are arranged at intervals, and the hot air duct is formed between adjacent air guide plates. The hot air duct extends along a first direction and then extends along a vertical direction after being guided by the air guide plates.

4. The film preheating box according to claim 1, characterized in that: The air guide assembly further comprises a guide bar, which is arranged on the inner side wall of the box body and located between the air guide assemblies distributed up and down. The guide bar is provided with two guide surfaces, which are arranged opposite to each other.

5. The film preheating box according to claim 4, characterized in that: The guide surface is arranged in an arc shape.

6. The film preheating box according to claim 1, characterized in that: The heating assembly includes a plurality of heating rods, and the heating rods are evenly distributed in the hot air duct or at the inlet and outlet of the hot air duct.

7. The film preheating box according to claim 1, characterized in that: The conveying roller is a hot water roller, one end of the conveying roller is connected to an external hot water source, and the other end of the conveying roller is connected to an external drainage channel.

8. The film preheating box according to claim 1, characterized in that: The box body is provided with a heat-insulating layer, and a heat-insulating medium is provided in the heat-insulating layer.

9. The film preheating box according to claim 1, characterized in that: The box body is provided with an inspection opening, and the inspection opening is provided with an inspection door.

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