Scraper device for uniformly gluing protective film

Abstract

The utility model discloses a protective film gluing even scraper device which comprises a supporting fixing frame, a scraper, a scraper fixing plate, a scraper supporting plate and an elastic connecting structure, the scraper is fixed on the scraper fixing plate, one side of the scraper supporting plate is hinged to the supporting fixing frame, and the other side of the scraper supporting plate is hinged to the elastic connecting structure. The scraper fixing plate is fixed to the other side of the scraper supporting plate, the elastic connecting structure is a pair of elastic elements which are oppositely arranged up and down, the elastic elements are arranged on the upper side and the lower side of the scraper supporting plate, one end of each elastic element is hinged to the supporting fixing frame, and the other end of each elastic element is hinged to the scraper supporting plate. The scraper supporting plate is vertically supported and positioned through a pair of nitrogen springs, the buffering and damping effects are good, and gluing is uniform; and the scraper fixing plate is of a hollow structure, cooling water is introduced into a hollow cavity, the working temperature of the scraper can be effectively guaranteed, and the influence on the glue concentration is small.

Description

Technical Field

[0001] This utility model relates to the field of protective film coating technology, and in particular to a protective film coating uniform scraper device. Background Technology

[0002] The surface of the photoelectric protective film needs to be coated with adhesive to form a protective layer. Adhesive coating is applied to the protective film surface by dipping an adhesive roller in adhesive and then applying it. After the bottom of the adhesive roller is dipped in adhesive through an adhesive tank, excess adhesive on the surface needs to be scraped off with a scraper to ensure uniform coating. Existing protective film adhesive coating scraper fixing structures are mostly purely mechanical structures, resulting in uneven force distribution and affecting the uniformity of coating. Currently, some structures use locally adjustable cylinders, but the buffering and shock absorption effects are relatively poor. For example, patent CN208146312U discloses a protective film adhesive coating scraper mechanism, including a scraper fixing plate, a scraper, and a fixing block for fixing to the adhesive coating equipment. The scraper is fixed on the scraper fixing plate, and the mechanism also includes a fixing shaft, a sleeve sleeved on the fixing shaft, and a cylinder for driving the sleeve to rotate. The fixing shaft is located on the fixing block, and the scraper fixing plate is located on the sleeve.

[0003] The adhesive in the glue tank is highly volatile. Existing glue tanks are mostly equipped with cooling structures to ensure the temperature of the adhesive. For example, patent CN206882055U discloses a glue tank structure for applying adhesive to a protective film, which includes a glue tank body and a rotatable glue roller disposed in the glue tank body, as well as a cooling box. The glue tank body is disposed on the cooling box, which is a water-cooled cooling box with an inlet and an outlet. However, the temperature of the scraper rises during long-term operation, and the adhesive evaporates, which will affect the adhesive concentration. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a protective film adhesive uniform coating scraper device, which has good buffering and shock absorption effects and uniform adhesive coating.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0006] The protective film coating uniform scraper device includes a support frame, a scraper, and a scraper fixing plate. The scraper is fixed on the scraper fixing plate. It also includes a scraper support plate and an elastic connection structure. One side of the scraper support plate is hinged to the support frame, and the scraper fixing plate is fixed to the other side of the scraper support plate. The elastic connection structure consists of a pair of elastic elements arranged opposite each other on the upper and lower sides of the scraper support plate. One end of each elastic element is hinged to the support frame, and the other end of each elastic element is hinged to the scraper support plate.

[0007] Further:

[0008] The support frame is equipped with a connecting seat, and one side of the scraper support plate is hinged to the connecting seat.

[0009] The pair of elastic elements are arranged symmetrically, one above the other.

[0010] The elastic element is a nitrogen spring.

[0011] The scraper fixing plate or scraper support plate has an adhesive receiving arc plate below the scraper for catching the scraped adhesive.

[0012] The length of the adhesive-bonding arc plate is greater than the length of the scraper.

[0013] The scraper fixing plate has a hollow structure and is equipped with an inlet and an outlet.

[0014] The inlet and outlet are respectively located at both ends of the scraper fixing plate.

[0015] The scraper fixing plate has a fixing groove on one side, and the scraper is inserted into the fixing groove for fixed installation.

[0016] Compared with the prior art, this utility model has the following advantages:

[0017] The protective film coating uniform scraper device has a reasonable structural design. One side of the scraper support plate is hinged to the connecting seat of the support and fixing frame. The scraper support plate is supported and positioned by a pair of nitrogen springs, which has a good buffering and shock absorption effect and uniform coating. In addition, the scraper fixing plate has a hollow structure, and cooling water is circulated in the hollow cavity, which can effectively ensure the working temperature of the scraper and has little impact on the adhesive concentration. Attached Figure Description

[0018] The following is a brief explanation of the contents of each of the accompanying drawings and the markings in the drawings:

[0019] Figure 1 This is a schematic diagram of the device structure of this utility model.

[0020] Figure 2 This is a schematic diagram of the scraper fixing block structure of this utility model.

[0021] In the picture:

[0022] 1. Support bracket, 2. Connecting seat, 3. Scraper support plate, 4. Upper nitrogen spring, 5. Lower nitrogen spring, 6. Scraper fixing plate, 601. Inner cavity, 602. Fixing groove, 7. Scraper, 8. Adhesive receiving arc plate. Detailed Implementation

[0023] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings and through the description of the examples.

[0024] like Figure 1 and Figure 2 As shown, the protective film coating uniform scraper device includes a support frame 1, a scraper 7, a scraper fixing plate 6, a scraper support plate 3, and an elastic connection structure. The scraper is fixed on the scraper fixing plate, one side of the scraper support plate is hinged to the support frame, and the scraper fixing plate is fixed on the other side of the scraper support plate. The elastic connection structure consists of a pair of elastic elements arranged opposite each other on the upper and lower sides of the scraper support plate. One end of the elastic element is hinged to the support frame, and the other end of the elastic element is hinged to the scraper support plate.

[0025] Furthermore, the support frame 1 is provided with a connecting seat 2, which has a protruding lug. One side of the scraper support plate is hinged to the lug on the connecting seat by a pin, making the structure stable and reliable.

[0026] A pair of elastic elements are symmetrically arranged vertically; preferably, the elastic elements are nitrogen springs; that is, a pair of elastic elements are an upper nitrogen spring 4 and a lower nitrogen spring 5. The scraper support plate is supported and positioned vertically by a pair of nitrogen springs, which has a good buffering and shock absorption effect and uniform glue application.

[0027] Furthermore, the scraper fixing plate or scraper support plate is provided with an arc-shaped plate 8 below the scraper to catch the scraped glue; this prevents the glue scraped by the scraper from falling directly into the glue tank, which can easily generate air bubbles and affect the glue coating quality.

[0028] The length of the adhesive receiving arc plate 8 is greater than the length of the scraper; furthermore, the end of the adhesive receiving arc plate is provided with an inclined plate connected to the adhesive groove to guide the glue scraper.

[0029] Further:

[0030] The scraper fixing plate 6 has a hollow structure and is provided with an inlet and an outlet that are connected to the inner cavity 601. The inlet and outlet are respectively located at both ends of the scraper fixing plate.

[0031] The scraper fixing plate has a fixing groove 602 on one side, into which the scraper is inserted and fixed, resulting in a large contact area with the scraper. The scraper fixing plate has a hollow structure, and cooling water flows through the hollow cavity, which can effectively ensure the working temperature of the scraper and has little impact on the glue concentration.

[0032] The above description is only a preferred embodiment of the present utility model. The above technical features can be arbitrarily combined to form multiple embodiments of the present utility model.

[0033] The present invention has been described above with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any non-substantial improvements made using the concept and technical solution of the present invention, or the direct application of the concept and technical solution of the present invention to other occasions without modification, are all within the protection scope of the present invention.

Claims

1. A uniform coating and scraping device for protective film, comprising a support frame, a scraping knife and a scraping knife fixing plate, the scraping knife is fixed on the scraping knife fixing plate, characterized in that: The scraper support plate is hingedly connected to one side of the support fixed frame, and the scraper fixing plate is fixed to the other side of the scraper support plate.

2. The uniform coating and scraping device for the protective film of claim 1, wherein the scraping device is a squeegee. The support fixed frame is provided with a connecting seat, and one side of the scraper support plate is hingedly connected to the connecting seat.

3. The uniform coating and scraping device for the protective film of claim 1, wherein the scraping device is a squeegee. The pair of elastic elements are symmetrically arranged upward and downward.

4. The uniform coating and doctoring device for protective films according to claim 1, wherein: The elastic element is a nitrogen spring.

5. The uniform coating and doctoring device for protective films according to claim 1, wherein: An adhesive receiving arc-shaped plate is arranged below the scraper on the scraper fixing plate or the scraper support plate.

6. The uniform coating and doctoring device for protective films according to claim 5, characterized in that: The length of the adhesive receiving arc-shaped plate is greater than the length of the scraper.

7. The uniform coating and doctoring device for protective films according to claim 1, wherein: The scraper fixing plate is a hollow structure, and the scraper fixing plate is provided with a water inlet and a water outlet.

8. The uniform coating and doctoring device for protective films according to claim 7, characterized in that: The water inlet and the water outlet are respectively arranged at the two end portions of the scraper fixing plate.

9. The uniform coating and doctoring device of claim 7, wherein: One side of the scraper fixing plate is provided with a fixing groove, and the scraper is fixedly arranged in the fixing groove.

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