Protective film coating machine

Abstract

The protective film coating machine comprises a coating machine mechanism and a scraper assembly, the scraper assembly comprises a scraper body, the outer side of the scraper body is in contact with a scraper blade plate, one end of the scraper blade plate is fixedly provided with a moving block, the interior of the moving block is connected with a threaded rod in a rotating mode, and the threaded rod is connected with the scraper blade plate in a rotating mode. A threaded rod is arranged in a transverse guide rail plate, a moving groove is formed in the transverse guide rail plate, through a micro motor, the threaded rod, a scraper blade plate and a moving block, membrane liquid on the outer side of a scraper body can be cleaned through the scraping effect of the scraper blade plate, and through adjustment of the moving block and the threaded rod, the membrane liquid on the outer side of the scraper body can be removed. The scraper blade plate can be ensured to accurately contact with the outer side of the scraper body, so that redundant film liquid attached to the scraper is removed, the film liquid can be effectively prevented from being excessively attached to the surface of the scraper, the coating effect and subsequent operation of the scraper are prevented from being affected by accumulation of the film liquid, and the phenomenon that the thickness of a coating film layer is not uniform due to the fact that the film liquid is not cleaned or controlled in time is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of film coating machine, concretely to a protective film coating machine. BACKGROUND

[0002] The main application field of the protective film coating machine relates to the coating process of the surface protection of various products, especially plays an important role in the subdivided market such as mobile phone protective film and anti-peeping film. The mobile phone protective film is usually made of polyethylene (PE), polypropylene (PP) and polyester (PET) and is applied to the surface of the mobile phone screen, back and frame to prevent scratching, pollution or other damage. The protective film coating machine uniformly coats the film on the surface of the protective film through scraping, rolling or spraying and can also be used to coat the protective film on the surface of other electronic products, household appliances, metals and plastics. Common examples include television screens, display surfaces, household appliance shell protective films and metal shell protective films.

[0003] However, in actual use, the coating machine uniformly coats the protective film material on the surface of the substrate through coating devices such as scrapers, rollers and sprayers. The liquid film material is uniformly sprayed onto the substrate using a nozzle, and the film liquid is uniformly coated on the surface of the substrate by a coating roller. The thickness of the coating film layer is controlled by a scraper. Since the thickness of the coating film layer is controlled by the scraper, the film liquid will adhere to the scraper during the scraping process. If the adhered film liquid is not cleaned or controlled in time, it will affect the coating quality, cause uneven film thickness and even cause the coating liquid to accumulate in some areas. CONTENT OF THE UTILITY MODEL

[0004] The utility model aims at providing a protective film coating machine to solve the problems in the background art.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a protective film coating machine, comprising a coating machine mechanism and a scraper assembly, the scraper assembly comprises a scraper body, the outer side of the scraper body is in contact with a scraper plate, one end of the scraper plate is fixedly installed with a moving block, the inside of the moving block is rotatably connected with a threaded rod, the threaded rod is arranged in the inside of a horizontal guide rail plate, a moving groove is formed in the inside of the horizontal guide rail plate, the inside of the moving groove is slidably connected with a moving block, one end of the threaded rod is fixedly installed with a micro motor, and the horizontal guide rail plate is connected to one end of the scraper body through a screw.

[0006] As a further preferred embodiment of the technical solution, one end of the scraper body is connected to one end of the sliding block through a screw, the sliding block is slidably connected in the inside of a guide rail groove, and the guide rail groove is formed in the inside of a moving guide rail plate.

[0007] As a further preferred of the technical solution, the upper end of the sliding block is fixedly installed with a telescopic rod, the upper end of the telescopic rod is fixedly installed with a telescopic hydraulic cylinder, the upper end of the sliding block is installed with a guide rod, the guide rod passes through the inside of a guide sleeve, and the guide sleeve is fixedly installed in the inside of a support plate.

[0008] As a further preferred of the technical solution, the lower end of the support plate is installed with a nozzle and a coating roller.

[0009] As a further preferred of the technical solution, the two sides of the support plate are fixedly installed with support frames, the lower end of the support frame is installed on the upper end of a moving assembly, and the moving assembly is installed on the two sides of a workbench.

[0010] As a further preferred of the technical solution, the two sides of the workbench are connected and fixed with a collecting box through screws, and the upper end of the collecting box is connected and fixed with a slot hole plate through screws.

[0011] The utility model provides a protection film coating machine has the following beneficial effects:

[0012] (1) the utility model discloses a miniature motor and screw rod, scraping piece plate and moving block, the outside membrane liquid of scraper body can be cleaned through the scraping of scraping piece plate, and the adjustment of moving block and screw rod ensures that scraping piece plate can accurately contact the outside of scraper body, thereby removing the excess membrane liquid attached to the scraper, which can effectively prevent the excessive attachment of membrane liquid on the surface of the scraper, avoid the accumulation of membrane liquid affecting the coating effect and subsequent operation of the scraper, avoid the uneven thickness of the coating film caused by the failure of timely cleaning or control of the membrane liquid, and even cause the accumulation of coating liquid in some areas.

[0013] (2) the utility model discloses that the up-and-down movement of telescopic rod can be controlled through telescopic hydraulic cylinder, the distance between scraper body and base material can be adjusted, the scraping thickness of scraper body to membrane liquid can be adjusted according to the need, the telescopic movement of the upper end guide rod of sliding block in the inside of guide sleeve is stable, and the function of guide rod is to ensure that the up-and-down movement of sliding block and scraper body is along the predetermined track. ACCURACY OF DRAWINGS

[0014] Figure 1 It is the schematic diagram of the whole structure of the utility model;

[0015] Figure 2 It is the structure schematic diagram of the collecting box and the slot hole plate of the utility model;

[0016] Figure 3 It is the structure schematic diagram of the nozzle and the coating roller of the utility model;

[0017] Figure 4 It is the structure schematic diagram of the scraper body and the moving guide rail plate of the utility model;

[0018] Figure 5 It is the schematic view of the transverse guide rail plate and the moving groove structure of the utility model;

[0019] Figure 6 It is the schematic view of the moving block and the scraper plate structure of the utility model;

[0020] In the figure: 100, coating machine mechanism; 101, workbench; 102, support frame; 103, collection box; 104, slot plate; 105, support plate; 106, nozzle; 107, coating roller; 200, scraper assembly; 201, moving guide rail plate; 202, guide rail groove; 203, telescopic rod; 204, sliding block; 205, guide sleeve; 206, guide rod; 207, scraper body; 209, micro motor; 211, scraper plate; 212, transverse guide rail plate; 213, moving groove; 214, threaded rod; 215, moving block. DETAILED DESCRIPTION

[0021] The technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model.

[0022] The utility model provides technical scheme: as Figure 1 Figures 4-6 As shown in the figure, in the embodiment, a protective film coating machine includes a coating machine mechanism 100 and a scraper assembly 200, the scraper assembly 200 includes a scraper body 207, the outer side of the scraper body 207 is in contact with a scraper plate 211, one end of the scraper plate 211 is fixedly installed with a moving block 215, the inside of the moving block 215 is rotatably connected with a threaded rod 214, the threaded rod 214 is arranged in the inside of a transverse guide rail plate 212, the inside of the transverse guide rail plate 212 is provided with a moving groove 213, the inside of the moving groove 213 is slidably connected with the moving block 215, one end of the threaded rod 214 is fixedly installed with a micro motor 209, and the transverse guide rail plate 212 is connected at one end of the scraper body 207 by screwing.

[0023] In the scheme, first, the film solution needs to be uniformly coated on the substrate surface, the substrate is fixed on the workbench 101, when the scraper finishes scraping the thickness of the coating film layer, the film solution will be attached to the scraper, the outer side of the scraper body 207 is in contact with the scraper plate 211, one end of the scraper plate 211 is fixedly provided with the moving block 215, the moving block 215 is rotatably connected with the threaded rod 214, the threaded rod 214 is arranged in the inside of the transverse guide rail plate 212, the micro motor 209 is driven to rotate the threaded rod 214, the moving block 215 moves in the inside of the transverse guide rail plate 212 in a sliding mode along the moving groove 213, further drives the scraper plate 211 to reciprocate, and the outer side of the scraper body 207 is contacted by the scraper plate 211 to clean the film solution on the outer side of the scraper body 207.

[0024] Through the micro motor 209 and the threaded rod 214, the scraping plate 211 and the moving block 215, the outer side film liquid of the scraper body 207 will be cleaned by the scraping effect of the scraping plate 211, and the adjustment of the moving block 215 and the threaded rod 214 ensures that the scraping plate 211 can accurately contact the outer side of the scraper body 207, thereby removing the excess film liquid attached to the scraper, which can effectively prevent the excessive attachment of film liquid on the surface of the scraper, avoid the accumulation of film liquid affecting the coating effect of the scraper and subsequent operation, and avoid the uneven thickness of the coating film layer caused by the failure to clean or control the film liquid in time.

[0025] As shown in Figures 3-4 One end of the scraper body 207 is connected to one end of the sliding block 204 through a screw, the sliding block 204 is connected inside the guide rail groove 202 through sliding, the guide rail groove 202 is opened inside the moving guide rail plate 201, the upper end of the sliding block 204 is fixedly installed with the telescopic rod 203, the upper end of the telescopic rod 203 is fixedly installed with the telescopic hydraulic cylinder 216, the upper end of the sliding block 204 is installed with the guide rod 206, the guide rod 206 is penetrated inside the guide sleeve 205, the guide sleeve 205 is fixedly installed inside the support plate 105, the lower end of the support plate 105 is installed with the nozzle 106 and the coating roller 107.

[0026] In this scheme, the nozzle 106 and the coating roller 107 installed at the lower end of the support plate 105 are used to provide and uniformly coat the film liquid to the substrate surface, when the scraper body 207 works, the nozzle 106 and the coating roller 107 work cooperatively to uniformly coat the film liquid to the substrate, and the scraper body 207 further adjusts the thickness and uniformity of the coating layer, when the scraper body 207 needs to scrape the film liquid on the substrate, the telescopic hydraulic cylinder drives the telescopic rod 203 to move up and down, further drives the sliding block 204 to move up and down inside the moving guide rail plate 201, and then drives the scraper body 207 to move up and down above the workbench 101, which can control the thickness of the film liquid scraped by the scraper, when the sliding block 204 moves inside the moving guide rail plate 201, and the upper end guide rod 206 of the sliding block 204 moves inside the guide sleeve 205.

[0027] The up and down movement of the telescopic rod 203 is controlled by the telescopic hydraulic cylinder, which can adjust the distance between the scraper body 207 and the substrate, and can adjust the scraping thickness of the film liquid by the scraper body 207 according to the need, the upper end guide rod 206 of the sliding block 204 moves stably inside the guide sleeve 205, and the guide rod 206 ensures that the sliding block 204 and the scraper body 207 move up and down along the predetermined trajectory.

[0028] As shown in Figures 1-3As shown, the two side ends of the support plate 105 are fixedly installed with support frames 102, the lower ends of the support frames 102 are installed on the upper ends of the moving assembly 300, the moving assembly 300 is installed on the two sides of the workbench 101, the two sides of the workbench 101 are fixedly connected with the collecting box 103 through screws, and the upper end of the collecting box 103 is fixedly connected with the slot plate 104 through a screw.

[0029] In the scheme, the nozzle 106 and the coating roller 107 on the support frame 102 can be moved by the moving assembly, when the surface of the doctor blade is cleaned, the film coating liquid is cleaned in the collecting box 103, and when the gap between the doctor blade and the substrate surface is too small or the viscosity of the film liquid is too high, part of the film liquid will adhere to the surface of the doctor blade and overflow from the two sides of the doctor blade and flow into the collecting box 103.

[0030] The utility model provides a kind of protective film coating machine, specific working principle is as follows: nozzle 106 and coating roller 107 installed in the lower end of support plate 105 are used to provide and even coating film liquid to substrate surface, when doctor body 207 works, nozzle 106 and coating roller 107 work cooperatively, and film liquid is evenly coated on substrate, and doctor body 207 further adjusts the thickness and uniformity of coating layer, when doctor body 207 needs to doctor coating film liquid to substrate film liquid, by driving telescopic hydraulic cylinder, telescopic rod 203 is moved up and down, further drives sliding block 204 to move up and down inside moving guide rail plate 201, and then doctor body 207 is moved up and down above workbench 101, the thickness of doctor coating film liquid can be controlled, when sliding block 204 moves inside moving guide rail plate 201, and the upper end guide rod 206 of sliding block 204 telescopic moves inside guide sleeve 205, nozzle 106 and coating roller 107 on the support frame 102 can be moved by the moving assembly, when the surface of the doctor blade is cleaned, the film coating liquid is cleaned in the collecting box 103, and when the gap between the doctor blade and the substrate surface is too small or the viscosity of the film liquid is too high, part of the film liquid will adhere to the surface of the doctor blade and overflow from the two sides of the doctor blade and flow into the collecting box 103, film liquid is evenly coated on substrate surface, substrate is fixed on workbench 101, after the thickness of coating film layer is scraped by doctor, film liquid adheres to doctor, the outside of doctor body 207 contacts doctor blade plate 211, one end of doctor blade plate 211 is fixed with moving block 215, moving block 215 is connected with threaded rod 214 by rotation, threaded rod 214 is arranged inside horizontal guide rail plate 212, threaded rod 214 is rotated by driving micro motor 209, moving block 215 moves inside horizontal guide rail plate 212 by sliding, further drives doctor blade plate 211 to reciprocate, and the outside of doctor body 207 is cleaned by doctor blade plate 211.

[0031] While the embodiments of the present application have been illustrated and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the spirit and scope of the application, which is defined by the appended claims and their equivalents.

Claims

1. A protective film applicator comprising an applicator mechanism (100) and a doctor blade assembly (200), characterized in that: The scraper assembly (200) includes a scraper body (207), the outer side of the scraper body (207) is in contact with a scraper plate (211), one end of the scraper plate (211) is fixedly installed with a moving block (215), the inside of the moving block (215) is rotatably connected with a threaded rod (214), the threaded rod (214) is arranged in the inside of a transverse guide rail plate (212), the inside of the transverse guide rail plate (212) is provided with a moving groove (213), the inside of the moving groove (213) is slidably connected with the moving block (215), one end of the threaded rod (214) is fixedly installed with a micro motor (209), and the transverse guide rail plate (212) is screw-connected to one end of the scraper body (207).

2. The protective film coating machine according to claim 1, characterized in that: One end of the scraper body (207) is screw-connected to one end of a sliding block (204), the sliding block (204) is slidably connected in the inside of a guide rail groove (202), and the guide rail groove (202) is arranged in the inside of a moving guide rail plate (201).

3. The protective film coating machine according to claim 2, characterized in that: The upper end of the sliding block (204) is fixedly installed with an extension rod (203), the upper end of the extension rod (203) is fixedly installed with an extension hydraulic cylinder (216), the upper end of the sliding block (204) is installed with a guide rod (206), the guide rod (206) penetrates through the inside of a guide sleeve (205), and the guide sleeve (205) is fixedly installed in the inside of a support plate (105).

4. The protective film coating machine according to claim 3, characterized in that: The upper end of the support plate (105) is screw-connected with the extension hydraulic cylinder (216), and the lower end of the support plate (105) is installed with a nozzle (106) and a coating roller (107).

5. The protective film coating machine according to claim 3, wherein: Both sides of the support plate (105) are fixedly installed with support frames (102), the lower end of the support frame (102) is installed on the upper end of a moving assembly (300), and the moving assembly (300) is installed on both sides of a workbench (101).

6. The protective film coating machine according to claim 5, characterized in that: Both sides of the workbench (101) are screw-connected with a collecting box (103), and the upper end of the collecting box (103) is screw-connected with a slot hole plate (104). Both sides of the workbench (101) are screw-connected with a collecting box (103), and the upper end of the collecting box (103) is screw-connected with a slot hole plate (104).

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