Film winding device

Abstract

The utility model provides a film winding device, comprising an unwinding mechanism, a reeling mechanism, a coating drum, an angle guide roller, an angle guide roller, a plurality of unwinding guide rollers and a plurality of rewinding guide rollers; the coating drum is arranged between the unwinding mechanism and the rewinding mechanism, a plurality of unwinding guide rollers are arranged between the unwinding mechanism and the coating drum at intervals, a plurality of rewinding guide rollers are arranged between the coating drum and the rewinding mechanism at intervals, the angle guide roller is arranged on a side of the coating drum close to the unwinding mechanism, the angle guide roller is arranged on a side of the coating drum close to the rewinding mechanism, the film passes through the unwinding mechanism, a plurality of unwinding guide rollers, the angle guide roller, the coating drum, the angle guide roller and a plurality of rewinding guide rollers in sequence and then enters the rewinding mechanism, the angle guide roller is used to drive the film to enter the coating drum with an entry angle between 75 degrees and 85 degrees, the angle guide roller is used to drive the film to have a wrap angle between 160 degrees and 170 degrees in the coating drum. The film winding device of the utility model can improve the cooling effect and the uniformity of the metal coating under the condition of increasing the cost.

Description

Technical Field

[0001] The utility model relates to the technical field of film preparation, in particular to a film winding device. Background Art

[0002] In the field of metallization coating technology, film cooling and coating uniformity control are two important links. The cooling effect directly affects the quality of the film, while uniformity control is related to the performance consistency of the film. The cooling method of the existing technology cools the film through the coating drum, but there is still insufficient cooling during high-speed and large-scale production. Film uniformity control is also a difficult problem because it involves the flatness of the film roll and the drum effect.

[0003] In order to solve these problems, the existing technical solutions mainly improve the cooling effect and improve the uniformity of the film by improving the cooling equipment or adjusting the process parameters. For example, some technical solutions improve the cooling effect by increasing the number of cooling devices or improving the design of cooling devices, and improve the uniformity of evaporation by increasing the quality requirements of the base film. However, the existing technical solutions still have some problems in practical applications. For example, improving the design and adding equipment will increase costs. Improving the quality requirements of the base film will also increase procurement costs. Utility Model Content

[0004] The utility model aims to provide a film winding device, aiming to solve the problems of poor cooling effect and need to improve uniformity in the existing film preparation.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] Provided is a film winding device, comprising an unwinding mechanism, a rewinding mechanism, a coating drum, an angle guide roller, an angle guide roller, a plurality of unwinding guide rollers and a plurality of rewinding guide rollers;

[0007] The coating drum is arranged between the unwinding mechanism and the winding mechanism, a plurality of unwinding guide rollers are arranged at intervals between the unwinding mechanism and the coating drum, a plurality of winding guide rollers are arranged at intervals between the coating drum and the winding mechanism, the entry angle guide roller is arranged on the side of the coating drum close to the unwinding mechanism, and the wrap angle guide roller is arranged on the side of the coating drum close to the winding mechanism. The film passes through the unwinding mechanism, a plurality of unwinding guide rollers, the entry angle guide roller, the coating drum, the wrap angle guide roller and the plurality of winding guide rollers in sequence and then enters the winding mechanism. The entry angle guide roller is used to drive the film to have an entry angle of 75 degrees to 85 degrees when entering the coating drum, and the wrap angle guide roller is used to drive the film to have a wrap angle of 160 degrees to 170 degrees in the coating drum.

[0008] Optionally, the unwinding guide roller closest to the unwinding mechanism is used to prop up the film upwards.

[0009] Optionally, the unwinding guide roller closest to the entry angle guide roller is used to prop up the film to a side away from the coating drum.

[0010] Optionally, the winding guide roller closest to the winding mechanism is used to prop up the film upwards.

[0011] Optionally, the winding guide roller closest to the corner guide roller is used to support the film downward.

[0012] Optionally, the number of the unwinding guide rollers is seven.

[0013] Optionally, the number of the winding guide rollers is nine.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] 1. Improve the cooling effect: adjust the movement direction of the film and increase the wrap angle of the coating drum, thereby increasing the contact time and angle between the film and the cooling drum, further improving the cooling effect.

[0016] 2. Improve uniformity: By setting up multiple unwinding guide rollers, the transmission distance between rollers during the transmission of the film is reduced, and the film jitter is reduced. By optimizing the film's movement direction and the wrap angle of the coating drum, the film can remain stable without flanging or wrinkles during the winding and transportation to the coating drum. The film adheres well to the coating drum during the evaporation process, and the coating growth is uniform, thereby improving the uniformity of the film.

[0017] 3. Reduce costs: Compared with the existing technical solutions, this technical solution does not increase production costs while improving cooling effect and uniformity, because this technical solution is mainly achieved by optimizing equipment design and process parameters, rather than increasing the number of equipment or changing the raw material ratio, so it will not increase additional production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0019] Figure 1 It is a structural schematic diagram of the film winding device of the utility model.

[0020] In the figure: 1. Unwinding mechanism; 2. Rewinding mechanism; 3. Coating drum; 4. Entrance guide roller; 5. Wrapping guide roller; 6. Unwinding guide roller; 7. Rewinding guide roller. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship 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.

[0023] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features.

[0024] Combine the following Figure 1 The utility model is described in detail.

[0025] like Figure 1 As shown, the utility model provides a film winding device, including an unwinding mechanism 1, a winding mechanism 2, a coating drum 3, an angle guide roller 4, an angle guide roller 5, a plurality of unwinding guide rollers 6 and a plurality of winding guide rollers 7.

[0026] Among them, the coating drum 3 is arranged between the unwinding mechanism 1 and the winding mechanism 2, a plurality of unwinding guide rollers 6 are arranged at intervals between the unwinding mechanism 1 and the coating drum 3, a plurality of winding guide rollers 7 are arranged at intervals between the coating drum 3 and the winding mechanism 2, an entry angle guide roller 4 is arranged on the side of the coating drum 3 close to the unwinding mechanism 1, and an angle guide roller 5 is arranged on the side of the coating drum 3 close to the winding mechanism 2. The film passes through the unwinding mechanism 1, a plurality of unwinding guide rollers 6, an entry angle guide roller 4, the coating drum 3, an angle guide roller 5 and a plurality of winding guide rollers 7 in sequence and then enters the winding mechanism 2. The entry angle guide roller 4 is used to drive the film to enter the coating drum 3 with an entry angle between 75 degrees and 85 degrees, and the angle guide roller 5 is used to drive the film to have a wrap angle between 160 degrees and 170 degrees in the coating drum 3.

[0027] In this embodiment, by providing a plurality of unwinding guide rollers 6, the transmission distance between rollers during the transmission of the film is reduced, and the shaking of the film is reduced. At the same time, the movement direction of the film is adjusted, and the wrap angle of the coating drum 3 is increased, so that the cooling effect is further improved, so that the film can remain stable without flanging and wrinkles during winding and transportation to the coating drum 3.

[0028] In addition, by optimizing the moving direction of the film and the wrap angle of the coating drum 3, the film can be well attached to the coating drum 3 during the evaporation process, and the coating growth uniformity is good, thereby improving the uniformity of the film.

[0029] In a specific embodiment, the entry angle of the film when entering the coating drum 3 is 81 degrees, and the wrap angle of the film in the coating drum 3 is 167 degrees.

[0030] Specifically, the movement direction of the film is adjusted from the currently commonly used 62-degree cutting angle to an angle of 81 degrees with the tangent direction of the coating drum 3. This allows the film to better adapt to the shape of the coating drum 3, thereby improving the coating effect and also improving the cooling effect of the film.

[0031] Furthermore, the wrap angle of the coating drum 3 is increased from the currently commonly used 157 degrees to 167 degrees, which can increase the contact area between the film and the coating drum 3, thereby improving the cooling effect, reducing the film's edge folding and wrinkling, and improving the film's uniformity of film formation.

[0032] It can be understood that compared with the existing technical solutions, this technical solution does not increase production costs while improving cooling effect and uniformity, because this technical solution is mainly achieved by optimizing equipment design and process parameters, rather than increasing the number of equipment or changing the raw material ratio, so it will not increase additional production costs.

[0033] In some embodiments, the unwinding guide roller 6 closest to the unwinding mechanism 1 is used to support the film upward, which can increase the film outlet angle of the unwinding mechanism 1, thereby improving the stability of the film and preventing the film from flanging, wrinkling and other problems during the transmission process.

[0034] In some embodiments, the unwinding guide roller 6 closest to the entry angle guide roller 4 is used to prop up the film to the side away from the coating drum 3, which can improve the stability of the film and prevent the film from flanging, wrinkling and other problems during the transmission process.

[0035] In some embodiments, the winding guide roller 7 closest to the winding mechanism 2 is used to prop up the film upward, which can improve the stability of the film and prevent the film from flanging, wrinkling and other problems during the transmission process.

[0036] In some embodiments, the winding guide roller 7 closest to the corner guide roller 5 is used to prop up the film downward, which can improve the stability of the film and prevent the film from flanging, wrinkling and other problems during the transmission process.

[0037] In some embodiments, the number of unwinding guide rollers 6 is seven, which reduces the transmission distance between rollers during the transmission of the film, thereby improving the cooling effect.

[0038] In some embodiments, the number of winding guide rollers 7 is nine, which reduces the transmission distance between rollers during the transmission of the film, thereby improving the cooling effect.

[0039] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A film winding device, characterized in that: It comprises an unwinding mechanism (1), a rewinding mechanism (2), a coating drum (3), an angle guide roller (4), an angle guide roller (5), a plurality of unwinding guide rollers (6) and a plurality of rewinding guide rollers (7); The coating drum (3) is arranged between the unwinding mechanism (1) and the winding mechanism (2); a plurality of unwinding guide rollers (6) are arranged at intervals between the unwinding mechanism (1) and the coating drum (3); a plurality of winding guide rollers (7) are arranged at intervals between the coating drum (3) and the winding mechanism (2); the angle guide roller (4) is arranged on the side of the coating drum (3) close to the unwinding mechanism (1); the angle guide roller (5) is arranged on the side of the coating drum (3) close to the winding mechanism (2); ), the film passes through the unwinding mechanism (1), the plurality of unwinding guide rollers (6), the angle guide roller (4), the coating drum (3), the angle guide roller (5) and the plurality of winding guide rollers (7) in sequence and then enters the winding mechanism (2), the angle guide roller (4) being used to drive the film to enter the coating drum (3) at an angle between 75 degrees and 85 degrees, and the angle guide roller (5) being used to drive the film to have an angle between 160 degrees and 170 degrees in the coating drum (3).

2. The film winding device according to claim 1, characterized in that: The unwinding guide roller (6) closest to the unwinding mechanism (1) is used to prop up the film upwards.

3. The film winding device according to claim 1, characterized in that: The unwinding guide roller (6) closest to the entry angle guide roller (4) is used to prop up the film to a side away from the coating drum (3).

4. The film winding device according to claim 1, characterized in that: The winding guide roller (7) closest to the winding mechanism (2) is used to prop up the film upwards.

5. The film winding device according to claim 1, characterized in that: The winding guide roller (7) closest to the corner guide roller (5) is used to support the film downward.

6. The film winding device according to claim 1, characterized in that: The number of the unwinding guide rollers (6) is seven.

7. The film winding device according to claim 1, characterized in that: The number of the winding guide rollers (7) is nine.

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