Closed dustproof coating feeding device

Abstract

The utility model discloses a closed dustproof coating feeding device which comprises a trough arranged at a feeding port formed by an upper roller and a lower roller of a coating machine, two auxiliary baffles are vertically arranged on the two sides of the trough respectively, and a transparent film is arranged and supported between the two auxiliary baffles and covers an opening space above the trough. The auxiliary baffles are arranged on the two sides of the material groove, the transparent film is arranged between the auxiliary baffles, the opening space above the material groove is shielded, a closed space is formed, dust, impurities and the like are effectively prevented from entering the material groove, the cleanliness of OCA glue is guaranteed, and therefore the quality of OCA products is improved.

Description

Technical Field

[0001] This utility model relates to OCA production equipment, specifically to a closed-type dustproof coating feeding device for an OCA coating machine. Background Technology

[0002] In the production process of OCA (Optically Transparent Adhesive), the feeding stage of the coating machine is crucial. Currently, coating machines used to produce OCA are typically equipped with an upper roller, a lower roller, and a feed trough at the feed inlet. The upper roller is responsible for conveying the light film, the lower roller conveys the heavy film, and the feed trough is connected between the upper and lower rollers to store the OCA adhesive. The OCA adhesive is applied to the film through the transmission between the upper and lower rollers, thus forming a laminated OCA product.

[0003] Typically, OCA coating machines operate in cleanroom environments that adhere to cleanroom standards, aiming to create a highly clean production space. However, car-free workshops can only achieve relative cleanliness; production activities inevitably introduce dust in real time. For example, although air filtration systems can filter out most dust particles, some extremely small particles may re-enter the workshop due to limitations in filtration equipment performance or decreased efficiency after prolonged use. Furthermore, even when adhering to strict cleanroom operating procedures, personnel movement within the workshop may inadvertently introduce fiber debris from clothing friction. Finally, routine equipment maintenance and parts replacement operations can also introduce dust and impurities.

[0004] Once these dust and other impurities enter the existing open material tank and mix with the OCA adhesive, they will seriously affect product quality in subsequent coating processes. Even extremely small impurities can form defects in OCA products, affecting their optical performance and causing problems such as abnormal light refraction and spots on the display screen during use, thereby reducing the product yield and increasing production costs.

[0005] In conclusion, existing open-type material tanks, even in seemingly high-standard cleanroom environments, still face the risk of contamination from dust and other impurities, posing a serious threat to the quality stability and production efficiency of OCA products. Therefore, there is an urgent need for an innovative solution that can effectively prevent dust and other impurities from entering the material tank while maximizing the convenience of observation and anomaly handling to meet the ever-increasing quality demands of the OCA manufacturing industry. Utility Model Content

[0006] To address the problems of the prior art, this utility model provides a sealed dustproof coating feeding device. By adding an auxiliary baffle and a transparent film to the material trough area to form a shield, the material trough is sealed and isolated, while also taking into account the need for real-time observation and convenient handling of abnormalities during the production process.

[0007] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0008] A closed-type dustproof coating feeding device includes a material trough located at the feed inlet formed by the upper and lower rollers of the coating machine. An auxiliary baffle is vertically installed on each side of the material trough, and a transparent film is installed and supported between the two auxiliary baffles to cover the opening space above the material trough.

[0009] The auxiliary baffle is located on the outer side of the material trough, and an attachment space for fixing the transparent film is formed on the outer side of the auxiliary baffle. This arrangement allows the transparent film to be stably installed on the outer side of the auxiliary baffle, and the attachment space can better fix the transparent film, ensuring the transparent film's covering effect on the opening space above the material trough.

[0010] The auxiliary baffle is fixed to the side of the trough with bolts. This bolt-fixing method results in a simple structure, convenient installation and disassembly, and facilitates maintenance and component replacement.

[0011] The upper part of one side of the auxiliary baffle is close to the upper roller, which facilitates the film above the material trough to form a seal near the upper roller. Since the upper roller is the key position for material to enter the coating machine, the upper part of the auxiliary baffle being close to the upper roller allows the transparent film to adhere tightly at this position, forming a good sealed space and effectively preventing dust from entering the material trough from this area.

[0012] The transparent film is attached and fixed to the auxiliary baffles on both sides, its front end is attached and fixed to the lower part of the trough, and its rear end is close to the upper roller. This fixing method of the transparent film ensures that it can completely cover the opening space above the trough, protecting the trough from all directions. With the front end fixed to the lower part of the trough, the rear end close to the upper roller, and the sides fixed to the auxiliary baffles, a complete closed structure is formed.

[0013] The transparent film is a PE film. PE film has good flexibility, transparency and weather resistance, can be used stably in the working environment of the coating machine, has low cost, and can be easily torn off and replaced when abnormal conditions occur.

[0014] The auxiliary baffle is also equipped with a fastener for fixing the transparent film.

[0015] The fixing component is a magnetic fixing component. The use of magnetic fixing component makes the installation and removal of transparent film more convenient. No complicated tools are required. Simply attach the transparent film to the auxiliary baffle, which greatly improves the operating efficiency and also makes it easier to adjust and replace the transparent film.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] This invention utilizes auxiliary baffles on both sides of the material trough, with a transparent film placed between them, to cover the opening above the trough, forming a sealed space. This effectively prevents dust and impurities from entering the trough, ensuring the cleanliness of the coating material and thus improving the quality of the coated product. The auxiliary baffles are bolted to the sides of the trough, making installation and disassembly convenient, and facilitating maintenance and replacement of the transparent film. The transparent film is made of PE film, which is low-cost, flexible, and suitable for use in coating machine environments. The upper part of the auxiliary baffles is close to the upper roller, forming a good seal near the roller and further enhancing the dustproof effect. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the material trough section of an existing coating machine.

[0019] Figure 2 This is a schematic diagram of the structure of an embodiment of the present utility model.

[0020] The component names corresponding to the reference numerals in the attached drawings are as follows:

[0021] 1-Upper roller, 2-Lower roller, 3-Material trough, 4-Auxiliary baffle, 5-Transparent film, 6-Attachment space, 7-Bolt. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments. The embodiments of the present invention include, but are not limited to, the following embodiments.

[0023] Example

[0024] like Figures 1 to 2 As shown, this sealed dustproof coating feeding device includes a material trough 3 located at the feed inlet formed by the upper roller 1 and lower roller 2 of the coating machine. An auxiliary baffle 4 is vertically installed on each side of the material trough 3, and a transparent film 5 is installed and supported between the two auxiliary baffles 4 to cover the opening above the material trough 3. The auxiliary baffles 4 are located on the outer side of the material trough 3, and an attachment space 6 for fixing the transparent film 5 is formed on the outer side of the auxiliary baffles 4. The auxiliary baffles 4 are fixed to the side of the material trough 3 by bolts 7. The number and position of the bolts 7 are reasonably set according to the size and weight of the auxiliary baffles 4 to ensure the secure installation of the auxiliary baffles 4.

[0025] The upper part of one side of the auxiliary baffle 4 is close to the upper roller 1. Specifically, the upper edge of the auxiliary baffle 4 maintains a small distance from the outer circumference of the upper roller 1, so that the transparent film 5 can be tightly adhered to the upper roller 1 to form a seal. The two sides of the transparent film 5 are attached and fixed to the auxiliary baffle 4 using the attachment space 6. This can be done by adhesive, electrostatic adsorption, or magnetic fasteners. In this embodiment, the fasteners on the auxiliary baffle 4 are magnetic fasteners. The magnetic fasteners can be configured as strip magnets, and metal sheets can be selected according to the material of the auxiliary baffle. If the auxiliary baffle is made of stainless steel or other materials that can attract magnets, no metal sheets are needed. After the transparent film is attached to the edge of the auxiliary baffle, it can be pressed down by the magnetic fasteners. If the auxiliary baffle is made of plastic or other materials that cannot attract magnets, metal sheets need to be pre-attached to the adsorption space on the outside of the auxiliary baffle to facilitate magnet adsorption. The front end of the transparent film 5 is attached and fixed to the lower part of the material trough 3. Specifically, an adhesive strip can be set at the lower part of the material trough 3, and the front end of the transparent film 5 can be attached to the adhesive strip. Alternatively, the aforementioned magnetic fastener can be used for adsorption and fixation. The rear end of the transparent film 5 is close to the upper roller 1. Since the upper part of the auxiliary baffle 4 is close to the upper roller 1, the rear end of the transparent film 5 can be closely close to the upper roller 1, forming a good seal.

[0026] The transparent film 5 is made of PE film, and its thickness is selected according to the actual use requirements, usually 0.1-0.5mm. It has good flexibility and transparency, making it easy to observe the situation inside the material tank 3. In case of abnormal situation requiring handling, the transparent film can be torn off directly for quick handling, and then it can be covered again.

[0027] During use, when it is necessary to replace the transparent film 5, simply remove the magnetic fastener, take off the old transparent film 5, and install the new transparent film 5 according to the above steps. The operation is simple and quick. Because the sealed space formed by the transparent film 5 can effectively prevent dust and impurities from entering the material tank 3, it ensures the cleanliness of the coating material, thereby improving the quality of the coated products and production efficiency.

[0028] The above embodiments are merely preferred embodiments of this utility model and are not intended to limit the scope of protection of this utility model. Any changes made based on the design principles of this utility model, or any non-creative changes made on this basis, shall fall within the scope of protection of this utility model.

Claims

1. A sealed dustproof coating feeding device, comprising a feed trough (3) disposed at the feed inlet formed by the upper roller (1) and the lower roller (2) of a coating machine, characterized in that, An auxiliary baffle (4) is vertically installed on each side of the material trough (3), and a transparent film (5) is installed and supported between the two auxiliary baffles (4) to cover the opening space above the material trough (3).

2. The sealed dustproof coating feeding device according to claim 1, characterized in that, The auxiliary baffle (4) is located on the outer side of the side of the material trough (3), and an attachment space (6) for fixing the transparent film (5) is formed on the outer side of the auxiliary baffle (4).

3. The sealed dustproof coating feeding device according to claim 1, characterized in that, The auxiliary baffle (4) is fixed to the side of the trough (3) by bolts.

4. The sealed dustproof coating feeding device according to claim 1, characterized in that, The upper part of one side of the auxiliary baffle (4) is close to the upper roller (1), so that the film above the trough (3) can form a seal near the upper roller (1).

5. The sealed dustproof coating feeding device according to any one of claims 1 to 4, characterized in that, The transparent film (5) is attached and fixed on both sides to the auxiliary baffle (4), its front end is attached and fixed to the lower part of the trough (3), and its rear end is close to the upper roller (1).

6. The sealed dustproof coating feeding device according to claim 5, characterized in that, The transparent film (5) is a PE film.

7. The sealed dustproof coating feeding device according to claim 5, characterized in that, The auxiliary baffle (4) is also equipped with a fastener for fixing the transparent film (5).

8. The sealed dustproof coating feeding device according to claim 7, characterized in that, The fastener is a magnetic fastener.

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