Optical film winding device

Abstract

The utility model relates to the technical field of optical film winding, in particular to an optical film winding device which comprises a winding shaft rotationally connected to the inner side of an installation frame, an unwinding motor is fixedly installed in the installation frame, and the left end of the unwinding motor is movably connected with an unwinding shaft. The surface of the unwinding shaft is movably sleeved with a spacing film according to the size of the optical film. According to the utility model, the diaphragm is arranged; when the equipment needs to be used for rolling the optical film body, the spacing films are clamped between the two sides of the coiled material, gaps are formed between the films when the hard coating film is rolled, by means of the arrangement of the spacing films, the PET spacing films and the PP spacing films with the width of 5-10 mm and the thickness of 5-10 microns can be clamped according to the width of the hard coating film coiled material and the thickness of the spacing films, and the thickness of the hard coating film coiled material is increased. And fine gaps generated between the hard coating films during rolling are increased, so that the phenomena of adhesion and concave-convex points are effectively reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of optical film rolling, in particular to an optical film rolling device. Background Art

[0002] At present, in order to avoid scratching the surface of portable display devices such as liquid crystal displays or organic electroluminescent displays, such as mobile phones, tablet computers, e-books, etc., which display images during use, a layer of optical hard coating liquid is generally applied on a plastic film, and an optical hard coating is formed after ultraviolet light curing, and then attached to the surface of the display device. The hard coating can improve the durability of the display. The above-mentioned hard coating can be transparent or matte (anti-glare), and has anti-static, anti-fingerprint, antibacterial, anti-blue light or anti-reflection functions. Therefore, in addition to increasing the scratch resistance of the surface of the protected object, the hard coating can also improve the image quality of the display.

[0003] After searching, the patent application number is (202123200798.9), which discloses "an optical film winding device that is convenient for loading and unloading for optical film manufacturing", which solves the problem that the device is inconvenient for loading and unloading materials when in use, and cannot fine-tune the vertical height of the device according to the winding position;

[0004] However, the above-mentioned device has the following problems: the above-mentioned hard coating film is often produced continuously in a roll-to-roll manner. When the hard coating film with a high surface flatness is wound in a roll-to-roll manner, the surface of the hard coating film is too smooth, and adhesion will occur between the hard coating films due to electrostatic adsorption. At the same time, if there are foreign matter or bumps between the layers, bumps and bumps will be formed during winding, affecting the appearance of the subsequent winding shaft. The greater the winding tension or when the hard coating is coated on both sides, the more obvious the adhesion and bumps are. When the hard coating film that has been adhered for a long time is unwound and separated in the next process, it will also cause local deformation of the hard coating film due to adhesion to each other. In severe cases, it will cause damage or tearing of the hard coating film. For this reason, we have proposed an optical film winding device to solve the above problems. Utility Model Content

[0005] The purpose of the utility model is to provide an optical film winding device to solve the problem that the hard coating films mentioned in the above background technology will adhere to each other due to electrostatic adsorption. At the same time, if there are foreign matter or bumps between the layers, bumps and bumps will be formed during winding, affecting the appearance of the large winding shaft behind.

[0006] To achieve the above object, the utility model provides the following technical solution: an optical film winding device, comprising a mounting frame, a winding shaft is rotatably connected to the inner side of the mounting frame, a winding motor is fixedly installed in the mounting frame, and the left end of the winding motor is movably connected to the winding shaft.

[0007] A spacer film is movably sleeved on the surface of the unwinding shaft according to the size of the optical film.

[0008] Preferably, the spacer film is mainly made of PP or PET film, with a width of 5-10 mm and a thickness of 5-10 μm.

[0009] Preferably, a replacement component is provided between the unwinding shaft and the unwinding motor, and the replacement component includes a connecting rod, a threaded groove and a pin. A connecting rod is fixedly connected to the end of the unwinding motor in the mounting frame, a threaded groove is provided on the surface of the connecting rod, and a pin is movably connected to the surface of the connecting rod through the threaded groove, and the end of the pin away from the unwinding motor is inserted into the unwinding shaft.

[0010] Preferably, the front end of the unwinding shaft is located in the mounting frame and is clamped with an adjusting roller.

[0011] Preferably, the spacing film is adjusted according to the width of the optical film. The wider the optical film is, the thicker it is. If the film width is less than 600mm, a thickness of 5μm is used. If the film width is 600-1200mm, a thickness of 10μm is used.

[0012] Preferably, both sides of the winding shaft are rotatably connected to the mounting frame via a rotating shaft, and the technical solution can be used to install the winding area of ​​a coating machine or a slitting machine.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. The utility model sets a spacer film; when the optical film body needs to be rolled up using the device, the spacer film is sandwiched between both sides of the roll material to provide a gap between the films when the hard coating film is rolled up. By setting the spacer film, a PET or PP spacer film with a width of 5-10mm and a thickness of 5-10μm can be sandwiched according to the width of the hard coating film roll material and the thickness of the spacer film, thereby effectively providing a small gap generated when the hard coating film is rolled up and reducing the phenomenon of adhesion and concave and convex points. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, 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 utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 It is a schematic diagram of the structural section of the utility model;

[0018] Figure 3 For this utility model Figure 2 A is a partial enlarged schematic diagram of the middle part.

[0019] In the figure: 1. mounting frame; 2. reeling shaft; 3. unreeling motor; 4. unreeling shaft; 5. spacer film; 6. replacement assembly; 601. connecting rod; 602. threaded groove; 603. latch; 7. rotating shaft; 8. adjusting roller. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1-3 The utility model provides an embodiment: an optical film winding device, comprising a mounting frame 1, a winding shaft 2 is rotatably connected to the inner side of the mounting frame 1, a reeling motor 3 is fixedly installed in the mounting frame 1, and a reeling shaft 4 is movably connected to the left end of the reeling motor 3,

[0022] The surface of the unwinding shaft 4 is movably sleeved with a spacer film 5 according to the size of the optical film;

[0023] The device is provided with a spacer film 5, which solves the problem that the hard coating films will adhere to each other due to electrostatic adsorption. At the same time, if there are foreign matter or bumps between the layers, bumps will be formed during winding, affecting the appearance of the subsequent winding shaft.

[0024] Furthermore, the material of the spacer film 5 is mainly PP or PET film, with a width of 5-10 mm and a thickness of 5-10 μm. Figure 1 As shown, this structure is used to solve the problem of adhesion between hard coatings due to electrostatic adsorption during continuous production by setting up a spacer film 5 because the surface of the hard coating is too smooth.

[0025] Furthermore, a replacement assembly 6 is provided between the unwinding shaft 4 and the unwinding motor 3. The replacement assembly 6 includes a connecting rod 601, a threaded groove 602 and a latch 603. The end of the unwinding motor 3 in the mounting frame 1 is fixedly connected with the connecting rod 601. The surface of the connecting rod 601 is provided with a threaded groove 602. The surface of the connecting rod 601 is movably connected with the latch 603 through the threaded groove 602. The end of the latch 603 away from the unwinding motor 3 is inserted into the unwinding shaft 4. Figure 3As shown, this structure is used to drive the connecting rod 601 to rotate through the unwinding motor 3, so that the pin 603 on the surface of the connecting rod 601 moves outward, so that the inner end of the pin 603 is separated from the unwinding shaft 4, which is convenient for replacing the unwinding shaft 4.

[0026] Furthermore, the front end of the unwinding shaft 4 is located in the mounting frame 1 and is clamped with an adjusting roller 8. Figure 2 As shown, the structure is used to adjust the guide angle of the base film by adjusting the roller 8. When the spacer film 5 is clamped on both sides of the optical film, the angle of the spacer film 5 when being clamped and rolled up and down or front and back can be adjusted to avoid damage.

[0027] Furthermore, the spacing film 5 is adjusted according to the width of the optical film. The wider the optical film is, the thicker it is. If the film width is less than 600 mm, the thickness is 5 μm. If the film width is 600-1200 mm, the thickness is 10 μm. Figure 2 As shown, this structure is used to improve the qualified rate of the optical film by using spacer films 5 of different widths and thicknesses for different film rolls.

[0028] Furthermore, the two sides of the reel 2 are rotatably connected through the bearings between the rotating shaft 7 and the mounting frame 1. The technical solution can be used to install the reeling area of ​​the coating machine and the slitting machine. Figure 2 As shown, the structure is used to connect the winding shaft 2 to the mounting frame 1 via the rotating shaft 7 so that it can rotate on its own, making the device more convenient.

[0029] Working principle: When used, Figure 1 and Figure 2 As shown, after the interval film 5 is rolled out by the unwinding shaft 4, it passes through the surface of the adjusting roller 8, and the guiding angle of the base film is adjusted by the adjusting roller 8. When the interval film 5 is clamped on both sides of the optical film, the angle of the interval film 5 when being clamped in and rolled up and down or front and back can be adjusted to avoid wrinkles. The interval film is rolled up on the winding shaft 2, and the thickness of the interval film is selected according to the width of the optical film. If the width is less than 600mm, 5μm thickness is used, and if the width is 600-1200mm, 10μm thickness is used. The interval film is guided by using the corresponding adjusting roller 8, and the unwinding motor 3 is started. The unwinding roller 4 is driven to rotate by the connecting rod 601 and the threaded groove 602, and the optical film is unwound in batches. After unwinding, as shown in FIG. Figure 3 As shown, according to the width of different optical films, the unwinding motor 3 rotates in the opposite direction, driving the connecting rod 601 to rotate, so that the pin 603 on the surface of the connecting rod 601 moves outward, and the inner end of the pin 603 is separated from the unwinding roller 4, so as to facilitate the adjustment or replacement of the position of the spacer film 5 on the surface of the unwinding roller 4. The above is the entire working principle of the utility model.

[0030] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. An optical film winding device, comprising a mounting frame (1), characterized in that: The inner side of the mounting frame (1) is rotatably connected to a reeling shaft (2), a reeling motor (3) is fixedly installed inside the mounting frame (1), and the left end of the reeling motor (3) is movably connected to the reeling shaft (4). A spacer film (5) is movably sleeved on the surface of the unwinding shaft (4) according to the size of the optical film.

2. The optical film winding device according to claim 1, characterized in that: The material of the spacer film (5) is mainly PP or PET film, with a width of 5-10 mm and a thickness of 5-10 μm.

3. The optical film winding device according to claim 1, characterized in that: A replacement component (6) is provided between the unwinding shaft (4) and the unwinding motor (3), and the replacement component (6) comprises a connecting rod (601), a threaded groove (602) and a latch (603); a connecting rod (601) is fixedly connected to the end of the unwinding motor (3) in the mounting frame (1); a threaded groove (602) is provided on the surface of the connecting rod (601); a latch (603) is movably connected to the surface of the connecting rod (601) via the threaded groove (602); and an end of the latch (603) away from the unwinding motor (3) is inserted into the unwinding shaft (4).

4. The optical film winding device according to claim 1, characterized in that: The front end of the unwinding shaft (4) is located inside the mounting frame (1) and is clamped with an adjusting roller (8).

5. The optical film winding device according to claim 1, characterized in that: The spacing film (5) is adjusted according to the width of the optical film. The wider the optical film, the thicker it is. If the film width is less than 600mm, a thickness of 5μm is used. If the film width is 600-1200mm, a thickness of 10μm is used.

6. The optical film winding device according to claim 1, characterized in that: The two sides of the reel (2) are rotatably connected to the bearings in the mounting frame (1) via a rotating shaft (7). This technical solution can be used to install the reeling area of ​​a coating machine or a slitting machine.

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