Scraper device for uniformly gluing protective film

Abstract

The invention discloses a protective film gluing uniform scraper device which comprises a supporting fixing frame, a scraper and a scraper fixing plate, the scraper is fixed on the scraper fixing plate, the protective film gluing uniform scraper device further comprises a scraper supporting plate and an elastic connecting structure, one side of the scraper supporting plate is hinged to the supporting fixing frame, the scraper fixing plate is fixed on the other side of the scraper supporting plate, and the elastic connecting structure is arranged on the scraper supporting plate. The elastic connecting structure is a pair of elastic elements which are oppositely arranged up and down, the pair of 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] The invention relates to the technical field of protective film gluing, in particular to a protective film gluing uniform scraper device. Background Art

[0002] The surface of the photoelectric protective film needs to be coated with glue to form a protective layer. The surface of the protective film is coated with glue by a glue roller after being dipped in glue. After the bottom of the glue roller is dipped in glue through the glue tank, the excess glue on the surface needs to be scraped off by a scraper to ensure the uniformity of the glue coating. The existing scraper fixing structure for uniform glue coating of the protective film is mostly a pure mechanical structure, which is unevenly stressed and affects the uniformity of the glue coating. At present, there are also local cylinders for adjusting the structure, and the buffering and shock absorption effect is relatively poor. For example, the patent CN208146312U discloses a protective film glue scraper mechanism, including a scraper fixing plate and a scraper and a fixed block for fixing on the glue coating equipment, the scraper is fixed on the scraper fixing plate, and also includes a fixed shaft and a sleeve sleeved on the fixed shaft and a cylinder for driving the sleeve to rotate, the fixed shaft is arranged on the fixed block, and the scraper fixing plate is arranged on the sleeve.

[0003] The glue in the glue tank is highly volatile, and most existing glue tanks are provided with a cooling structure to ensure the temperature of the glue. For example, patent CN206882055U discloses a glue tank structure for coating glue on a protective film, comprising a coating tank body and a rotatable coating roller arranged in the coating tank body, and also comprising a cooling box, wherein the coating tank body is arranged on the cooling box, and the cooling box is a water-cooled cooling box, and a water inlet and a water outlet are arranged on the cooling box. However, the temperature of the scraper rises due to long-term working, and the glue evaporates, which will affect the glue concentration. Summary of the invention

[0004] In view of the shortcomings of the prior art, the present invention provides a scraper device for uniformly coating glue on a protective film, which has good buffering and shock absorbing effects and can coat glue uniformly.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0006] The protective film glue uniform scraper device comprises a supporting and fixing frame, a scraper and a scraper fixing plate, wherein the scraper is fixed on the scraper fixing plate, and further comprises a scraper supporting plate and an elastic connection structure, wherein one side of the scraper supporting plate is hinged on the supporting and fixing frame, and the scraper fixing plate is fixed on the other side of the scraper supporting plate, and the elastic connection structure is a pair of elastic elements arranged opposite to each other up and down, and a pair of elastic elements are arranged on the upper and lower sides of the scraper supporting plate, one end of the elastic element is hingedly connected to the supporting and fixing frame, and the other end of the elastic element is hingedly connected to the scraper supporting plate.

[0007] Further:

[0008] A connecting seat is provided on the supporting and fixing frame, and one side of the scraper supporting plate is hingedly connected to the connecting seat.

[0009] The pair of elastic elements are symmetrically arranged up and down.

[0010] The elastic element is a nitrogen spring.

[0011] The scraper fixing plate or the scraper supporting plate is provided with a glue-catching arc plate below the scraper for catching the scraped glue.

[0012] The length of the glue-joining arc plate is greater than the length of the scraper.

[0013] The scraper fixing plate is a hollow structure, and a water inlet and a water outlet are arranged on the scraper fixing plate.

[0014] The water inlet and the water outlet are respectively arranged at two ends of the scraper fixing plate.

[0015] A fixing groove is provided on one side of the scraper fixing plate, and the scraper is inserted into the fixing groove and fixed.

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

[0017] The scraper device for uniformly coating glue on the protective film has a reasonable structural design. One side of the scraper support plate is hinged on the connecting seat of the support fixing frame. The scraper support plate is supported and positioned by a pair of nitrogen springs at the top and bottom, so the buffering and shock absorption effect is good and the glue coating is uniform. The scraper fixing plate is a hollow structure, and cooling water flows through the hollow cavity, which can effectively ensure the working temperature of the scraper and has little effect on the glue concentration. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The following is a brief description of the contents and symbols in the drawings of this specification:

[0019] Figure 1 It is a schematic diagram of the structure of the device of the present invention.

[0020] Figure 2 It is a schematic diagram of the structure of the scraper fixing block of the present invention.

[0021] In the figure:

[0022] 1. Support fixing frame, 2. Connecting seat, 3. Scraper supporting plate, 4. Upper nitrogen spring, 5. Lower nitrogen spring, 6. Scraper fixing plate, 601. Inner cavity, 602. Fixing groove, 7. Scraper, 8. Glue-joining arc plate. DETAILED DESCRIPTION

[0023] The specific implementation modes of the present invention will be further explained in detail below through the description of embodiments with reference to the accompanying drawings.

[0024] like Figure 1 and Figure 2As shown, the protective film glue uniformly coated scraper device comprises a supporting fixing frame 1, a scraper 7, a scraper fixing plate 6, a scraper supporting plate 3 and an elastic connection structure; the scraper is fixed on the scraper fixing plate, one side of the scraper supporting plate is hinged on the supporting fixing frame, the scraper fixing plate is fixed on the other side of the scraper supporting plate, and the elastic connection structure is a pair of elastic elements arranged opposite to each other up and down, a pair of elastic elements are arranged on the upper and lower sides of the scraper supporting plate, one end of the elastic element is hingedly connected to the supporting fixing frame, and the other end of the elastic element is hingedly connected to the scraper supporting plate.

[0025] Furthermore, a connecting seat 2 is provided on the supporting and fixing frame 1, and a lug extends out of the connecting seat. One side of the scraper support plate is hingedly connected to the lug on the connecting seat through a pin shaft, and the structure is stable and reliable.

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

[0027] Furthermore, a scraper fixing plate or scraper supporting plate is provided below the scraper with a glue-collecting arc plate 8 for catching the scraped glue to prevent the glue scraped by the scraper from falling directly. If the glue falls directly into the glue groove, bubbles are easily generated, which affects the quality of glue coating.

[0028] The length of the glue-joining curved plate 8 is greater than the length of the scraper; further, an inclined plate connected to the glue groove is provided at the end of the glue-joining curved plate to drain the scraped glue.

[0029] Further:

[0030] The scraper fixing plate 6 is a hollow structure, and is provided with a water inlet and a water outlet connected to the inner cavity 601; the water inlet and the water outlet are respectively arranged at two ends of the scraper fixing plate.

[0031] A fixing groove 602 is provided on one side of the scraper fixing plate, and the scraper is inserted into the fixing groove and fixed therein, so that the contact area with the scraper is large; the scraper fixing plate is a hollow structure, and cooling water flows through the hollow cavity, which can effectively ensure the working temperature of the scraper and has little effect on the glue concentration.

[0032] The above is only an explanation of the preferred embodiments of the present invention, and the above technical features can be arbitrarily combined to form multiple embodiments of the present invention.

[0033] The present invention is described above by way of example in conjunction with the accompanying drawings. It is obvious that the specific implementation of the present invention is not limited to the above-mentioned method. As long as various non-substantial improvements are made using the concept and technical solution of the present invention, or the concept and technical solution of the present invention are directly applied to other occasions without improvement, they are all within the protection scope of the present invention.

Claims

1. A scraper device for uniformly coating a protective film with glue, comprising a supporting frame, a scraper and a scraper fixing plate, wherein the scraper is fixed on the scraper fixing plate, and characterized in that: It also includes a scraper support plate and an elastic connection structure, one side of the scraper support plate is hinged on the support fixing frame, and the scraper fixing plate is fixed on the other side of the scraper support plate. The elastic connection structure is a pair of elastic elements arranged opposite to each other up and down, and a pair of elastic elements are arranged on the upper and lower sides of the scraper support plate, one end of the elastic element is hingedly connected to the support fixing frame, and the other end of the elastic element is hingedly connected to the scraper support plate.

2. The protective film glue uniform scraper device as claimed in claim 1, characterized in that: A connecting seat is provided on the supporting and fixing frame, and one side of the scraper supporting plate is hingedly connected to the connecting seat.

3. The protective film glue uniform scraper device as claimed in claim 1, characterized in that: The pair of elastic elements are symmetrically arranged up and down.

4. The protective film glue uniform scraper device as claimed in claim 1, characterized in that: The elastic element is a nitrogen spring.

5. The protective film glue uniformly coating scraper device as claimed in claim 1, characterized in that: The scraper fixing plate or the scraper supporting plate is provided with a glue-catching arc plate below the scraper for catching the scraped glue.

6. The protective film glue uniformly coating scraper device as claimed in claim 5, characterized in that: The length of the glue-joining arc plate is greater than the length of the scraper.

7. The protective film glue uniformly coating scraper device as claimed in claim 1, characterized in that: The scraper fixing plate is a hollow structure, and a water inlet and a water outlet are arranged on the scraper fixing plate.

8. The protective film glue uniformly coating scraper device as claimed in claim 7, characterized in that: The water inlet and the water outlet are respectively arranged at two ends of the scraper fixing plate.

9. The protective film glue uniformly coating scraper device as claimed in claim 7, characterized in that: A fixing groove is provided on one side of the scraper fixing plate, and the scraper is inserted into the fixing groove and fixed.

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