PET release film energy-saving drying equipment based on hot air circulation

Abstract

The utility model relates to the technical field of PET release film processing, in particular to PET release film energy-saving drying equipment based on hot air circulation, which comprises a drying box body, a drying bin is arranged in the drying box body, and a drying dispersion component is arranged on the outer wall of the drying bin; the drying and dispersing assembly comprises a hot air dispersing box fixed to the top end of the drying bin, the rear end of the hot air dispersing box fixedly communicates with a plurality of dispersing pipes, a plurality of dispersing manifolds communicating with the dispersing pipes are fixedly installed on the rear side wall of the interior of the drying bin, and a plurality of dispersing spray holes distributed at equal intervals are formed in the end faces of the dispersing manifolds. According to the utility model, different positions of the suspended PET release film can be subjected to air injection drying treatment through the plurality of dispersion manifolds positioned at different heights, and meanwhile, hot air can be injected to the end surfaces of the two sides of the PET release film through the plurality of dispersion spray holes formed in the dispersion manifolds, so that the problem of non-uniform heating of the PET release film can be solved.

Description

Technical Field

[0001] This utility model relates to the field of PET release film processing technology, specifically to an energy-saving drying equipment for PET release film based on hot air circulation. Background Technology

[0002] PET release film is a type of release film made from polyethylene terephthalate (PET) as the base material, coated with silicone oil or fluorine materials. It is mainly used to isolate adhesive materials (such as tapes and glues), ensuring controllable adhesion and easy peeling during processing. PET release film achieves its "anti-stick" effect by coating the PET substrate surface with a release agent (such as silicone oil or fluorine), reducing surface adhesion. Its structure can be divided into single-sided and double-sided release films, and according to release force, it is classified into light, medium, and heavy-duty types to meet the needs of different adhesive materials.

[0003] In existing technical solutions, traditional drying equipment dries PET release film through a single air outlet. This results in the hot air not being able to evenly cover other parts of the film, leading to large temperature differences in different areas. This causes localized overheating or incomplete drying of the film, resulting in uneven curing of coatings (such as silicone oil and fluorine), large temperature fluctuations, and affecting the stability of release force or coating adhesion. Utility Model Content

[0004] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.

[0005] Given that the above-mentioned or existing technologies use traditional drying equipment to dry PET release film through a single air outlet, this can lead to the hot air not being able to evenly cover other parts of the film, resulting in large temperature differences in different areas, local overheating or incomplete drying of the film, uneven curing of coatings (such as silicone oil and fluorine), large temperature fluctuations, and affecting the stability of release force or coating adhesion.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] Energy-saving drying equipment for PET release film based on hot air circulation includes:

[0008] A drying chamber is provided inside the drying chamber, and a drying and dispersing component is provided on the outer wall of the drying chamber;

[0009] The drying and dispersing assembly includes a hot air dispersing box fixed at the top of the drying chamber. The rear end of the hot air dispersing box is fixedly connected to multiple dispersing pipes. Multiple dispersing manifolds connected to the dispersing pipes are fixedly installed on the rear side wall inside the drying chamber. Multiple dispersing nozzles are equidistantly distributed on the end face of the dispersing manifolds.

[0010] As a further improvement of this utility model: a door is hinged to the front end of the drying chamber, and a connecting valve pipe is fixedly connected to the side wall of the drying chamber.

[0011] As a further embodiment of this utility model: a drying circulation assembly is provided both inside and outside the drying chamber. The drying circulation assembly includes a warm air blower fixedly installed at the top of the drying chamber, and the output end of the warm air blower extends through the inner wall of the drying chamber to the interior of the hot air dispersion box.

[0012] As a further embodiment of this utility model: the input end of the heater is fixedly connected to a circulation pipe, a drying tank is detachably installed on the circulation pipe, and circulation return pipes penetrate the left and right side walls of the drying chamber, forming a circulation chamber between the drying chamber and the inner wall of the drying box.

[0013] As a further embodiment of this utility model: a release film suspension assembly is provided on the bottom surface of the hot air dispersion box, and the release film suspension assembly includes a plurality of equidistantly distributed assembly tracks fixedly installed on the bottom surface of the hot air dispersion box.

[0014] As a further improvement of this utility model: an assembly slider is slidably installed inside the assembly track, and a suspension rod is fixedly installed at the bottom end of the assembly slider.

[0015] As a further embodiment of this utility model: a clamping component is provided both inside and outside the assembly slider, the clamping component includes an assembly groove opened inside the assembly slider, and a pressure rod is slidably installed inside the assembly groove.

[0016] As a further embodiment of this utility model: a limiting pressure plate is fixedly installed on the outer wall of the pressure rod, a spring is attached to the lower end face of the limiting pressure plate, and a matching pressure plate is fixedly installed at the bottom end of the pressure rod.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] This invention utilizes multiple dispersive manifolds at different heights to perform jet drying on different positions of the suspended PET release film. Simultaneously, multiple dispersive nozzles on the manifolds spray hot air onto both ends of the PET release film, reducing uneven heating. This avoids the problems of traditional drying equipment that uses a single air outlet, resulting in uneven hot air coverage of other parts of the film, large temperature differences in different areas, and localized overheating or incomplete drying. It also avoids uneven curing of coatings such as silicone oil and fluorine, which can lead to large temperature fluctuations and affect the stability of the release force or the adhesion of the coating. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of an energy-saving drying equipment for PET release film based on hot air circulation.

[0020] Figure 2 This is a schematic diagram of the internal structure of the drying chamber of an energy-saving drying equipment for PET release film based on hot air circulation;

[0021] Figure 3 This is a schematic diagram of the drying and dispersing component of an energy-saving drying equipment for PET release film based on hot air circulation.

[0022] Figure 4 This is a schematic diagram of the release film suspension assembly in an energy-saving drying equipment for PET release film based on hot air circulation.

[0023] Figure 5 This is a schematic diagram of the pressing component of an energy-saving drying equipment for PET release film based on hot air circulation.

[0024] In the diagram: 1. Drying chamber; 2. Chamber door; 3. Drying circulation assembly; 301. Warm air blower; 302. Drying tank; 303. Circulation pipe; 304. Circulation chamber; 305. Circulation return pipe; 4. Drying dispersion assembly; 401. Hot air dispersion box; 402. Dispersion pipe; 403. Dispersion manifold; 404. Dispersion nozzle; 5. Drying chamber; 6. Connecting valve pipe; 7. Release film suspension assembly; 701. Assembly track; 702. Assembly slider; 703. Suspension rod; 8. Pressing assembly; 801. Pressure rod; 802. Assembly groove; 803. Limiting pressure plate; 804. Spring; 805. Fitting pressure plate. Detailed Implementation

[0025] To make the above-mentioned objectives, features and advantages of this utility model more readily understood, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0026] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0027] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single embodiment or an embodiment selectively excluded from other embodiments.

[0028] Example 1

[0029] Please see Figure 1 , Figure 2 and Figure 3 This is the first embodiment of the present invention, which provides an energy-saving drying device for PET release film based on hot air circulation, comprising:

[0030] Drying chamber 1, the interior of drying chamber 1 is provided with drying chamber 5, and the outer wall of drying chamber 5 is provided with drying and dispersing components 4;

[0031] The drying and dispersing assembly 4 includes a hot air dispersing box 401 fixed at the top of the drying chamber 5. The rear end of the hot air dispersing box 401 is fixedly connected to multiple dispersing pipes 402. Multiple dispersing manifolds 403 connected to the dispersing pipes 402 are fixedly installed on the rear side wall inside the drying chamber 5. Multiple dispersing nozzles 404 are equidistantly distributed on the end face of the dispersing manifolds 403.

[0032] Specifically, the front end of the drying chamber 1 is hinged with a door 2, and a connecting valve pipe 6 is fixedly connected to the side wall of the drying chamber 1.

[0033] Furthermore, the connecting valve 6 can be used to control the entry and exit of gas inside the device to maintain stable air quality and temperature in the drying zone.

[0034] Specifically, a drying circulation assembly 3 is provided both inside and outside the drying chamber 1. The drying circulation assembly 3 includes a heater 301 fixedly installed at the top of the drying chamber 1. The output end of the heater 301 extends through the inner wall of the drying chamber 1 to the inside of the hot air dispersion box 401. The input end of the heater 301 is fixedly connected to a circulation pipe 303. A drying tank 302 is detachably installed on the circulation pipe 303. Circulation return pipes 305 pass through the left and right side walls of the drying chamber 5. A circulation chamber 304 is formed between the drying chamber 5 and the inner wall of the drying chamber 1.

[0035] Furthermore, the drying circulation component 3 can provide hot air to the device to dry the PET release film inside the device.

[0036] In use, close the sealing door 2 and start the heater 301. The heater 301 can draw in outside air through the circulation pipe 303, circulation chamber 304 and connecting valve pipe 6. After the air circulation is complete, close the connecting valve pipe 6. The heater 301 heats the air and delivers the heat to the hot air dispersion box 401. The hot air dispersion box 401 is connected to the dispersion pipe 402, which delivers the hot air to each dispersion pipe 402. The dispersion pipe 402 is connected to the dispersion manifold 403, which disperses the hot air into the dispersion manifold 403. The hot air is then sprayed out through the dispersion nozzles 404 on the dispersion manifold 403. The hot air sprayed out through the dispersion nozzles 404 dries the PET release film placed in the drying chamber 5. At the same time, the air in the drying chamber 5 can flow back to the circulation chamber 304 through the circulation return pipe 305. The air can be recycled by the extraction through the circulation pipe 303.

[0037] In summary, by using multiple dispersing manifolds 403 at different heights, the suspended PET release film can be air-dried at different positions. At the same time, the multiple dispersing nozzles 404 on the dispersing manifolds 403 can spray hot air onto both ends of the PET release film, thereby reducing the problem of uneven heating of the PET release film. This avoids the problem of traditional drying equipment drying the PET release film through a single air outlet, which results in the hot air not being able to evenly cover other parts of the film, leading to large temperature differences in different areas, local overheating or incomplete drying of the film. It also avoids the problem of uneven curing of coatings such as silicone oil and fluorine, large temperature fluctuations, and the impact on the stability of release force or coating adhesion.

[0038] Example 2

[0039] Please see Figure 3 , Figure 4 and Figure 5 This is the second embodiment of the present invention, which provides an improved design for an energy-saving drying equipment for PET release film based on hot air circulation.

[0040] Specifically, a release film suspension assembly 7 is provided on the bottom surface of the hot air dispersion box 401. The release film suspension assembly 7 includes multiple equidistantly distributed assembly tracks 701 fixedly installed on the bottom surface of the hot air dispersion box 401. An assembly slider 702 is slidably installed inside the assembly track 701. A suspension rod 703 is fixedly installed at the bottom end of the assembly slider 702.

[0041] Furthermore, the suspension rod 703 can be slidably pulled out from the assembly track 701 via the assembly slider 702, which makes it convenient to suspend the PET release film to be dried on the suspension rod 703, improving the convenience of PET release film assembly.

[0042] Specifically, the assembly slider 702 is provided with a clamping assembly 8 both inside and outside. The clamping assembly 8 includes an assembly groove 802 opened inside the assembly slider 702. A pressure rod 801 is slidably installed inside the assembly groove 802. A limiting pressure plate 803 is fixedly installed on the outer wall of the pressure rod 801. A spring 804 is attached to the lower end face of the limiting pressure plate 803. A fitting pressure plate 805 is fixedly installed at the bottom end of the pressure rod 801.

[0043] Furthermore, the top of the pressure rod 801 is a hemispherical structure, and the lower end face of the fitting pressure plate 805 matches the arc-shaped end face of the suspension rod 703, thereby facilitating the pressing and fixing of the PET release film suspended on the suspension rod 703.

[0044] In use, the suspension rod 703 is slid out of the assembly track 701 via the assembly slider 702, which makes it easy to suspend the PET release film to be dried on the suspension rod 703. After the PET release film is suspended, when the assembly slider 702 is reinserted into the assembly track 701, the assembly track 701 will squeeze the pressure rod 801 inside the assembly slider 702 and move the pressure rod 801 downward, thereby pushing the limiting pressure plate 803 to squeeze the spring 804 in the assembly groove 802. At the same time, the pressure rod 801 will push the fitting pressure plate 805 to press and fix the PET release film suspended on the suspension rod 703.

[0045] In summary, the combination of the release film suspension assembly 7 and the pressing assembly 8 can improve the convenience of PET release film assembly and ensure the stability of the PET release film suspended on the suspension rod 703 during hot air circulation drying.

[0046] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible without substantially departing from the novel teachings and advantages of the subject matter described in this application. For example, variations in the size, dimensions, structure, shape, and proportions of various elements, as well as parameter values ​​such as temperature, pressure, etc., installation arrangements, use of materials, color, orientation, etc. For instance, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of this utility model. The order or sequence of any process or method steps may be changed or rearranged according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure performing the function described herein, and not only structural equivalents but also equivalent structures. Other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments without departing from the scope of this utility model. Therefore, this invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0047] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments may be described, i.e., those features that are not relevant to the currently considered best mode for carrying out the present invention, or those features that are not relevant to implementing the present invention.

[0048] It should be understood that numerous specific implementation decisions can be made during the development of any actual implementation method, and in any engineering or design project. Such development efforts may be complex and time-consuming, but for those of ordinary skill in the art who benefit from this disclosure, the development effort will be a routine task in design, manufacturing, and production without requiring extensive experimentation.

[0049] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. An energy-saving drying equipment for PET release film based on hot air circulation, characterized in that: include: A drying chamber (1) is provided inside the drying chamber (1), and a drying dispersion component (4) is provided on the outer wall of the drying chamber (5); The drying and dispersing assembly (4) includes a hot air dispersing box (401) fixed at the top of the drying chamber (5). The rear end of the hot air dispersing box (401) is fixedly connected to a plurality of dispersing pipes (402). A plurality of dispersing manifolds (403) connected to the dispersing pipes (402) are fixedly installed on the rear side wall inside the drying chamber (5). A plurality of equally spaced dispersing nozzles (404) are opened on the end face of the dispersing manifolds (403).

2. The energy-saving drying equipment for PET release film based on hot air circulation according to claim 1, characterized in that: The front end of the drying chamber (1) is hinged with a door (2), and a connecting valve pipe (6) is fixedly connected to the side wall of the drying chamber (1).

3. The energy-saving drying equipment for PET release film based on hot air circulation according to claim 1, characterized in that: The drying chamber (1) is equipped with a drying circulation assembly (3) both inside and outside. The drying circulation assembly (3) includes a heater (301) fixedly installed at the top of the drying chamber (1). The output end of the heater (301) extends through the inner wall of the drying chamber (1) to the interior of the hot air dispersion box (401).

4. The energy-saving drying equipment for PET release film based on hot air circulation according to claim 3, characterized in that: The input end of the heater (301) is fixedly connected to a circulation pipe (303), and a drying tank (302) is detachably installed on the circulation pipe (303). A circulation return pipe (305) runs through the left and right side walls of the drying chamber (5), and a circulation chamber (304) is formed between the drying chamber (5) and the inner wall of the drying box (1).

5. The energy-saving drying equipment for PET release film based on hot air circulation according to claim 1, characterized in that: The bottom surface of the hot air dispersion box (401) is provided with a release film suspension assembly (7), which includes multiple equidistantly distributed assembly tracks (701) fixedly installed on the bottom surface of the hot air dispersion box (401).

6. The energy-saving drying equipment for PET release film based on hot air circulation according to claim 5, characterized in that: An assembly slider (702) is slidably installed inside the assembly track (701), and a suspension rod (703) is fixedly installed at the bottom end of the assembly slider (702).

7. The energy-saving drying equipment for PET release film based on hot air circulation according to claim 6, characterized in that: The assembly slider (702) is provided with a clamping assembly (8) both inside and outside. The clamping assembly (8) includes an assembly groove (802) opened inside the assembly slider (702), and a pressure rod (801) is slidably installed inside the assembly groove (802).

8. The energy-saving drying equipment for PET release film based on hot air circulation according to claim 7, characterized in that: A limiting pressure plate (803) is fixedly installed on the outer wall of the pressure rod (801). A spring (804) is attached to the lower end face of the limiting pressure plate (803). A fitting pressure plate (805) is fixedly installed at the bottom end of the pressure rod (801).

Images