Coating equipment capable of reducing coating vibration

Abstract

The utility model discloses coating equipment capable of reducing coating vibration, which comprises a scraper and an intaglio roller which are oppositely arranged, the scraper is partially lapped on the intaglio roller, the diameter of the intaglio roller is larger than 6cm, and the width of a contact line of the scraper and the intaglio roller is 1mm-2mm. According to the coating equipment capable of reducing the coating vibration, by increasing the diameter of the gravure roller, the contact line width of the scraper and the gravure roller can be reduced, the contact area of each part of the scraper and the gravure roller is reduced consistently, and the vibration between the scraper and the gravure roller can be effectively reduced due to the reduction of the contact area, so that fine lines are prevented from being generated on a product in the coating process; and the product quality is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of diffusion film preparation, in particular to a coating device capable of reducing coating vibration. Background Art

[0002] The diameter of the gravure roller used in the diffusion film coating equipment is usually 4cm-5cm. During the diffusion film coating process, since the scraper in the coating equipment contacts the gravure roller, the gravure roller rotates with the coating liquid. When the scraper is pressed on the gravure roller, the contact line width between the two is basically 4mm-6mm, so the contact area between the scraper and the gravure roller is large. When pressed together, vibration is easily generated, resulting in fine lines on the diffusion film product, affecting the display effect when the diffusion film is used. Utility Model Content

[0003] The purpose of the utility model is to provide a coating device that reduces coating vibration. By increasing the diameter of the gravure roller, the width of the contact line between the roller and the scraper is reduced, so that the contact area is reduced and the vibration between the two is reduced, thereby improving product quality.

[0004] The purpose of this utility model is achieved by the following technical solutions:

[0005] A coating device for reducing coating vibration comprises a scraper and a gravure roller arranged opposite to each other, wherein the scraper partially rests on the gravure roller, the diameter of the gravure roller is not less than 6 cm, and the contact line width between the scraper and the gravure roller is 1 mm to 2 mm.

[0006] In some embodiments, the gravure roll has a diameter no greater than 8 cm.

[0007] In some embodiments, the coating apparatus further includes a clamp module, and the scraper is disposed on the clamp module.

[0008] In some embodiments, the coating device further includes a position adjustment mechanism, which is connected to the clamp module and is used to adjust the distance between the scraper and the gravure roller.

[0009] In some embodiments, the coating apparatus further comprises a detection unit for detecting a contact line width between the scraper and the gravure roller.

[0010] In some embodiments, the coating device further includes a pressure regulating mechanism, which is disposed on the clamp module and connected to the scraper, and is used to regulate the pressure between the scraper and the gravure roller.

[0011] In some embodiments, the pressure between the scraper and the gravure roller is 0.1 Pa-0.3 Pa.

[0012] In some embodiments, the coating device further includes a support module, which is disposed below the fixture module and is used to support and fix the fixture module.

[0013] In some embodiments, the coating device further includes a buffer mechanism, which is disposed below the support module and is used to reduce vibrations generated by the scraper and the gravure roller.

[0014] In some embodiments, the buffer mechanism includes a plurality of buffer pads, and the buffer pads have a thickness of 3 cm-3.5 cm.

[0015] Compared with the prior art, the beneficial effects of the present invention include at least: by increasing the diameter of the gravure roller, the contact line width between the scraper and the gravure roller can be reduced, and the contact area between the scraper and the gravure roller is uniformly reduced. Due to the reduction in contact area, the vibration between the scraper and the gravure roller can be effectively reduced, thereby avoiding the generation of fine lines on the product during the coating process and improving product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the coating equipment of the present utility model.

[0017] In the figure: 1. Scraper; 2. Gravure roller; 3. Clamping module; 4. Position adjustment mechanism; 5. Pressure adjustment mechanism; 6. Support module; 7. Buffer mechanism. DETAILED DESCRIPTION

[0018] Example embodiments will now be described more fully with reference to the accompanying drawings. However, the example embodiments can be implemented in many forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided to make this disclosure more comprehensive and complete and to fully convey the concepts of the example embodiments to those skilled in the art. Identical reference numerals in the figures denote identical or similar structures, and thus repeated descriptions thereof will be omitted.

[0019] The words expressing positions and directions described in this utility model are all explained with reference to the accompanying drawings as examples, but they can be changed as needed, and all such changes are included in the protection scope of this utility model.

[0020] See also Figure 1 As shown, the utility model discloses a coating device for reducing coating vibration, including a scraper 1 and a gravure roller 2 arranged relatively to each other, the scraper 1 partially rests on the gravure roller 2, the diameter of the gravure roller 2 is not less than 6 cm, and the contact line width between the scraper 1 and the gravure roller 2 is 1 mm-2 mm.

[0021] In this application, the diameter of the gravure roller 2 is increased from the original 4 cm-5 cm to not less than 6 cm. By increasing the diameter of the gravure roller 2, the contact line width between the scraper 1 and the gravure roller 2 can be reduced from the original 4 mm-6 mm to 1 mm-2 mm. The contact area between the scraper 1 and the gravure roller 2 is uniformly reduced. Due to the reduction in contact area, the vibration between the scraper 1 and the gravure roller 2 can be effectively reduced, thereby avoiding the generation of fine lines on the product during the coating process and improving product quality.

[0022] In some embodiments, the diameter of the gravure roller 2 is not greater than 8 cm. If the diameter of the gravure roller 2 is greater than 8 cm, the gravure roller will carry too much liquid, and the scraper 1 will not be able to scrape it evenly in time, which will affect the product quality and cause waste of coating liquid.

[0023] Still like Figure 1 As shown, in some embodiments, the coating apparatus further includes a clamp module 3, on which the scraper 1 is mounted. The clamp module 3 may be a clamp seat for clamping and mounting the tail of the scraper 1. After installation, the scraper 1 may be fixed or movable. In this application, rotatably mounting the scraper 1 on the clamp seat is a preferred option, which enables the scraper 1 to swing up and down to adjust the contact pressure with the gravure roller 2.

[0024] In some embodiments, the coating device further includes a position adjustment mechanism 4, which is connected to the clamp module 3 and is used to adjust the distance between the scraper 1 and the gravure roller 2 to ensure that the contact line width between the scraper 1 and the gravure roller 2 is always within a normal range. In the present application, the position adjustment mechanism 4 can be located below / in front of / on the rear of the clamp module 3. The position adjustment mechanism 4 can be a manually controlled lead screw slider structure or an automatically controlled mechanism such as a servo linear module, a cylinder, or an electric push rod. No specific restrictions are made here, and it is only necessary to ensure that the clamp module 3 can achieve precise forward or backward functions.

[0025] In some embodiments, the coating apparatus further includes a detection unit (not shown) for detecting the contact line width between the scraper 1 and the gravure roller 2. If the contact line width between the scraper 1 and the gravure roller 2 is within a set threshold range, the coating apparatus is operating normally. If the contact line width between the scraper 1 and the gravure roller 2 is not within the set threshold range, the position adjustment mechanism 4 can be used to control the scraper 1 to advance or retreat until the contact line width between the scraper 1 and the gravure roller 2 is within the normal range. In this application, the detection unit can be a distance sensor provided on the clamping module 3, which is used to detect the distance data from the scraper 1 to the gravure roller 2 and compare it with preset data. The sensor can be associated with an alarm (not shown) or an automatically controlled position adjustment mechanism 4 to promptly adjust the problematic contact line width.

[0026] Continue as Figure 1As described, in some embodiments, the coating device further includes a pressure regulating mechanism 5, which is arranged on the clamp module 3 and connected to the scraper 1, and is used to adjust the pressure between the scraper 1 and the gravure roller 2. Simply put, the pressure regulating mechanism 5 can apply pressure toward the gravure roller 2 or a pulling force away from the gravure roller 2 to the scraper 1, thereby ensuring that the scraper 1 is in full contact with the gravure roller 2, so that the scraper 1 can be evenly coated everywhere, thereby improving product quality. In the present application, the pressure regulating mechanism 5 can be a cylinder, one end of the cylinder is hinged to the clamp module 3, and the other end is hinged to the tail of the scraper 1. By controlling the extension and contraction of the cylinder, the scraper 1 can be driven to swing, thereby adjusting the pressure between the scraper 1 and the gravure roller 2. Of course, in other embodiments, the pressure regulating mechanism 5 can also be arranged above or below the scraper 1 and connected to the scraper 1.

[0027] In some embodiments, the pressure between the scraper 1 and the gravure roller 2 is 0.1 Pa-0.3 Pa. If the pressure is less than 0.1 Pa, a contact gap may exist between the scraper 1 and the gravure roller 2, making it difficult for the scraper 1 to evenly distribute the coating liquid, affecting product quality. If the pressure is greater than 0.3 Pa, the rotation of the gravure roller 2 is affected and the diffusion film may be damaged. Within the pressure range of 0.1 Pa-0.3 Pa, the contact between the scraper 1 and the gravure roller 2 is stable, and the contact line width between the scraper 1 and the gravure roller 2 can be controlled between 1 mm and 2 mm.

[0028] See also Figure 1 As shown, in some embodiments, the coating device further includes a supporting module 6 , which is disposed below the fixture module 3 . The supporting module 6 may be a substrate for supporting and fixing the fixture module 3 .

[0029] In some embodiments, the coating apparatus further includes a buffer mechanism 7 disposed below the support module 6 to reduce vibrations generated by the scraper 1 and the gravure roller 2, thereby improving the uniformity of the coating of the diffusion film. In this application, the buffer mechanism 7 includes a plurality of buffer pads, for example, 4-8, with a thickness of 3 cm to 3.5 cm, to ensure good buffering capacity.

[0030] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are illustrative and cannot be understood as limiting the present invention. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the utility model without departing from the principles and purpose of the utility model. All of these changes should fall within the scope of protection of the claims of the present invention.

Claims

1. A coating device for reducing coating vibration, comprising a scraper (1) and a gravure roller (2) arranged opposite to each other, wherein the scraper (1) partially rests on the gravure roller (2), and is characterized in that: The diameter of the gravure roller (2) is not less than 6 cm, and the contact line width between the scraper (1) and the gravure roller (2) is 1 mm to 2 mm.

2. The coating device for reducing coating vibration according to claim 1, characterized in that: The diameter of the gravure roller (2) is no greater than 8 cm.

3. The coating device for reducing coating vibration according to claim 1, characterized in that: It also includes a clamp module (3), and the scraper (1) is arranged on the clamp module (3).

4. The coating device for reducing coating vibration according to claim 3, characterized in that: It also includes a position adjustment mechanism (4), which is connected to the clamp module (3) and is used to adjust the distance between the scraper (1) and the gravure roller (2).

5. The coating device for reducing coating vibration according to claim 1 or 4, characterized in that: It also includes a detection unit for detecting the contact line width between the scraper (1) and the gravure roller (2).

6. The coating device for reducing coating vibration according to claim 3, characterized in that: It also includes a pressure regulating mechanism (5), which is arranged on the clamp module (3) and connected to the scraper (1) and is used to regulate the pressure between the scraper (1) and the gravure roller (2).

7. The coating device for reducing coating vibration according to claim 1 or 6, characterized in that: The pressure between the scraper (1) and the gravure roller (2) is 0.1 Pa-0.3 Pa.

8. The coating device for reducing coating vibration according to claim 3, characterized in that: It also includes a support module (6), which is arranged below the clamp module (3) and is used to support and fix the clamp module (3).

9. The coating device for reducing coating vibration according to claim 8, characterized in that: It also includes a buffer mechanism (7), which is arranged below the support module (6) and is used to reduce vibrations generated by the scraper (1) and the gravure roller (2).

10. The coating device for reducing coating vibration according to claim 9, characterized in that: The buffer mechanism (7) comprises a plurality of buffer pads, and the thickness of the buffer pads is 3 cm to 3.5 cm.

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