Gluing device for protective film

Abstract

The utility model relates to the technical field of protective film production, and discloses a protective film gluing device which comprises a working table, a collecting box is arranged at the top end of the working table, a supporting shell is fixedly connected to the top end of the working table, an electric push rod is fixedly connected to the inner wall of the supporting shell, and a scraping plate is fixedly connected to the driving end of the electric push rod. A heating block is fixedly connected to the right end of the scraping plate, a glue box is fixedly connected to the top end of the supporting shell, stirring blades are connected to the top end of the glue box through an anti-freezing assembly, a feeding pipe is arranged at the left end of the glue box in a penetrating mode, a glue pump is arranged on the outer wall of the feeding pipe, and a gluing device is fixedly connected to the other end of the feeding pipe. According to the glue scraping device, the height of the scraping plate is adjusted through the electric push rod, glue on a protective film is scraped to be flat so as to control the thickness of the glue on the protective film, meanwhile, the scraping plate is heated through the heating block, and the situation that in the glue scraping process, the glue is solidified and adheres to the scraping plate, and follow-up scraping is affected is prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of protective film production, in particular to a gluing device for a protective film. Background Art

[0002] According to the purpose, protective films can be divided into digital product protective films, car protective films, household protective films, food preservation protective films, etc. With the popularity of digital products such as mobile phones in China, protective films have gradually become a general term for screen protective films. In the production process of protective films, a gluing device is required to gluing them.

[0003] After searching, a protective film gluing device with announcement number CN216500324U includes a glue storage tank, two pairs of first vertical rods are fixedly provided on both sides of the top of the glue storage tank, and the tops of the inner sides of the two pairs of first vertical rods are rotatably installed with a feed roller and a discharge roller, and two support blocks are fixedly provided in the middle of both sides of the top of the glue storage tank, and the middle parts of the two support blocks are rotatably interlaced with shaft tubes, and a glue coating roller is provided between the two support blocks, and one end of the two shaft tubes is respectively fixedly interlaced with the middle parts of the two ends of the glue coating roller, and a plurality of heat exchange channels are opened at equal intervals on the outer ring inside the glue coating roller. The beneficial effect of the utility model is that constant temperature water can be circulated through the inside of the glue coating roller by cooperating with two hollow shaft tubes, a plurality of heat exchange channels and a plurality of connecting pipes, and the slurry on the glue coating roller can be temperature-controlled by the constant temperature water, and then the temperature of the slurry during the gluing process can be guaranteed, the viscosity of the slurry can be ensured, and the gluing quality can be improved;

[0004] Based on the above patent, the material can be pressed and coated with glue by cooperating with the main pressing roller and the two auxiliary pressing rollers in conjunction with the glue coating roller. Rotating the two handle screws can drive the two auxiliary pressing rollers to slide laterally along the roller axis, and then the pressing can be adjusted within a certain range according to the width of the protective film, which is more practical. However, the pressing roller cannot be adjusted, so the thickness of the glue layer cannot be changed. When some specific protective films require a thicker glue layer, gluing cannot be performed. Utility Model Content

[0005] The utility model aims to solve the shortcomings in the prior art and proposes a protective film gluing device, which can control the thickness of the glue on the protective film and prevent the glue from solidifying and affecting subsequent gluing.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A gluing device for a protective film comprises a workbench, a collecting box is provided at the top of the workbench, a supporting shell is fixedly connected to the top of the workbench, an electric push rod is fixedly connected to the inner wall of the supporting shell, a scraper is fixedly connected to the driving end of the electric push rod, a heating block is fixedly connected to the right end of the scraper, a glue box is fixedly connected to the top of the supporting shell, a stirring blade is connected to the top of the glue box through an antifreeze component, a feeding pipe is passed through the left end of the glue box, a glue pump is provided on the outer wall of the feeding pipe, a gluing device is fixedly connected to the other end of the feeding pipe, the right side of the top of the supporting shell is connected to a cooler through an air-drying component, and the top of the workbench is connected to a transmission roller through a conveying component.

[0008] Furthermore, the antifreeze component includes a second motor fixedly connected to the top of the rubber box, a second rotating shaft is fixedly connected to the driving end of the second motor, and the inward end of the stirring blade is fixedly connected to the outer wall of the second rotating shaft.

[0009] Furthermore, the air-drying component includes a fan fixedly connected to the right side of the top of the supporting shell, the air outlet end of the fan is fixedly connected to an air duct, the other end of the air duct is fixedly connected to the top of the cooler, and the left end of the cooler is fixedly connected to the right end of the supporting shell.

[0010] Furthermore, the conveying assembly includes support blocks fixedly connected at the four corners of the top end of the workbench, the front end of the left support block is fixedly connected to a motor 1, the inner wall of the motor 1 is rotatably connected to a rotating shaft 1, the inner walls of the transmission rollers are fixedly connected to the outer wall of the rotating shaft 1, the rear sides of the outer walls of the rotating shaft 1 are fixedly connected to pulleys, the two pulleys are connected by belts, and the inner walls of the top ends of the support blocks are connected to guide rollers via clamping assemblies.

[0011] Furthermore, the clamping assembly includes a spring tube fixedly connected to the inner wall at the top of the support block, the bottom end of the spring tube is fixedly connected to a bearing, the inner wall of the bearing is fixedly connected to the rotating shaft three, and the inner wall of the guide roller is fixedly connected to the outer wall of the rotating shaft three.

[0012] Furthermore, the outer wall of the feeding pipe is fixedly connected to the inner wall of the supporting shell.

[0013] Furthermore, the two outer walls of the rotating shaft are rotatably connected to the inner wall of the rubber box.

[0014] Furthermore, a front end of the rotating shaft on the left side is fixedly connected to a driving end of the motor.

[0015] The utility model has the following beneficial effects:

[0016] 1. In the utility model, the electric push rod cooperates with the feeding pipe, glue pump, glue box, glue applicator and heating block to realize that the device can control the thickness of the glue on the protective film and prevent the glue from solidifying and affecting the subsequent gluing.

[0017] 2. In the utility model, the guide roller cooperates with the spring tube, the rotating shaft and the bearing, so that the device can clamp the protective films of different thicknesses while conveying them, thereby preventing the protective films from deviating and affecting the gluing during the conveying process. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A three-dimensional diagram of a gluing device for a protective film proposed by the utility model;

[0019] Figure 2 This is a rear perspective view of a gluing device for a protective film proposed by the utility model;

[0020] Figure 3 A cross-sectional view of a middle support shell of a gluing device for a protective film proposed by the utility model;

[0021] Figure 4 This is a schematic diagram of a clamping structure of a gluing device for a protective film proposed by the utility model.

[0022] Legend:

[0023] 1. Workbench; 2. Motor 1; 3. Drive roller; 4. Spring cylinder; 5. Guide roller; 6. Support shell; 7. Feed pipe; 8. Glue pump; 9. Motor 2; 10. Glue box; 11. Fan; 12. Support block; 13. Air duct; 14. Cooler; 15. Shaft 1; 16. Pulley; 17. Shaft 2; 18. Stirring blade; 19. Glue applicator; 20. Electric push rod; 21. Scraper; 22. Heating block; 23. Collecting box; 24. Shaft 3; 25. Bearing. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] Reference Figure 1-3The utility model provides an embodiment: a protective film gluing device, comprising a workbench 1, a collecting box 23 is arranged on the top of the workbench 1, a support shell 6 is fixedly connected to the top of the workbench 1, an electric push rod 20 is fixedly connected to the inner wall of the support shell 6, a scraper 21 is fixedly connected to the driving end of the electric push rod 20, a heating block 22 is fixedly connected to the right end of the scraper 21, a glue box 10 is fixedly connected to the top of the support shell 6, a motor 29 is fixedly connected to the top of the glue box 10, a rotating shaft 2 17 is fixedly connected to the driving end of the motor 29, and the rotating shaft 2 1 7 is rotatably connected to the inner wall of the glue box 10, and the inner end of the stirring blade 18 is fixedly connected to the outer wall of the second rotating shaft 17. A feeding pipe 7 is passed through the left end of the glue box 10, and the outer wall of the feeding pipe 7 is fixedly connected to the inner wall of the supporting shell 6. A glue pump 8 is arranged on the outer wall of the feeding pipe 7, and a glue applicator 19 is fixedly connected to the other end of the feeding pipe 7. A fan 11 is fixedly connected to the right side of the top of the supporting shell 6, and an air duct 13 is fixedly connected to the air outlet end of the fan 11. The other end of the air duct 13 is fixedly connected to a cooler 14, and the left end of the cooler 14 is fixedly connected to the right end of the supporting shell 6;

[0026] Specifically, the motor 29 is started to drive the rotating shaft 217 to rotate so that the stirring blade 18 moves inside the glue box 10, stirring the glue inside the glue box 10 to prevent it from solidifying, and then the glue inside the glue box 10 is extracted through the glue pump 8 and input into the glue applicator 19 along the feeding pipe 7, and then dripped onto the protective film through the glue applicator 19, and then the height of the scraper 21 is adjusted by the electric push rod 20 to scrape the glue on the protective film to control the thickness of the glue on the protective film. At the same time, the heating block 22 heats the scraper 21 to prevent the glue from solidifying and sticking to the scraper 21 and affecting the scraping during the process of scraping the glue, and then the fan 11 is turned on to transport the wind through the air duct 13 to the cooler 14, and then blown out through the cooler 14 to air-dry the protective film whose surface has been leveled, thereby accelerating the solidification of the glue on its surface to facilitate the subsequent winding of the protective film.

[0027] The four corners of the top of the workbench 1 are fixedly connected with support blocks 12, the front end of the left support block 12 is fixedly connected with a motor 2, the inner wall of the motor 2 is rotatably connected with a rotating shaft 15, the front end of the left rotating shaft 15 is fixedly connected to the driving end of the motor 2, the outer wall of the rotating shaft 15 is fixedly connected with a transmission roller 3, the rear side of the outer wall of the rotating shaft 15 is fixedly connected with a pulley 16, and the two pulleys 16 are connected by a belt, the inner wall of the top of the support block 12 is fixedly connected with a spring cylinder 4, the bottom end of the spring cylinder 4 is fixedly connected with a bearing 25, the inner wall of the bearing 25 is fixedly connected with a rotating shaft 3 24, and the outer wall of the rotating shaft 3 24 is rotatably connected with a guide roller 5;

[0028] Specifically, the starting motor 2 makes the two rotating shafts 15 rotate synchronously with the cooperation of the pulley 16 and the belt, and the transmission roller 3 on the rotating shaft 15 follows the movement of the rotating shaft 15 to transport the protective film. During the transportation process, the guide roller 5 will press against the surface of the protective film under the action of the spring tube 4 to clamp the protective film to prevent the protective film from being offset or skewed during the transportation process, which affects the subsequent gluing.

[0029] Working principle: Start the motor 29 to drive the rotating shaft 217 to rotate so that the stirring blade 18 moves inside the glue box 10, stirs the glue inside the glue box 10 to prevent it from solidifying, and then the glue inside the glue box 10 is extracted through the glue pump 8 and input into the glue applicator 19 along the feeding pipe 7, and drips onto the protective film through the glue applicator 19, and then the height of the scraper 21 is adjusted by the electric push rod 20 to scrape the glue on the protective film to control the thickness of the glue on the protective film, and the scraped glue is collected by the collecting box 23, and the heating block 22 heats the scraper 21 to prevent the glue from solidifying and sticking to the scraper 2 during the process of scraping the glue. 1, and then the fan 11 is turned on to convey the wind to the cooler 14 through the air duct 13, and then blown out through the cooler 14 to air-dry the protective film whose surface has been leveled, so as to accelerate the solidification of the glue on its surface and facilitate the subsequent winding of the protective film. The motor 2 is started to make the two shafts 15 rotate synchronously under the cooperation of the pulley 16 and the belt, and the transmission roller 3 on the shaft 15 follows the movement of the shaft 15 to convey the protective film. During the conveying process, the guide roller 5 will be against the surface of the protective film under the action of the spring cylinder 4 to clamp the protective film, so as to prevent the protective film from being offset or skewed during the conveying process, which affects the subsequent gluing.

[0030] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A protective film gluing device, comprising a workbench (1), characterized in that: The top of the workbench (1) is provided with a collecting box (23), the top of the workbench (1) is fixedly connected to a supporting shell (6), the inner wall of the supporting shell (6) is fixedly connected to an electric push rod (20), the driving end of the electric push rod (20) is fixedly connected to a scraper (21), the right end of the scraper (21) is fixedly connected to a heating block (22), the top of the supporting shell (6) is fixedly connected to a glue box (10), the top of the glue box (10) is connected to a stirring blade (18) through an antifreeze component, a feeding pipe (7) is passed through the left end of the glue box (10), a glue pump (8) is provided on the outer wall of the feeding pipe (7), and the other end of the feeding pipe (7) is fixedly connected to a glue applicator (19), the right side of the top of the supporting shell (6) is connected to a cooler (14) through an air drying component, and the top of the workbench (1) is connected to a transmission roller (3) through a conveying component.

2. The gluing device for a protective film according to claim 1, characterized in that: The antifreeze component comprises a second motor (9) fixedly connected to the top of the rubber box (10), the driving end of the second motor (9) is fixedly connected to a second rotating shaft (17), and the inward end of the stirring blade (18) is fixedly connected to the outer wall of the second rotating shaft (17).

3. The gluing device for a protective film according to claim 1, characterized in that: The air-drying component comprises a fan (11) fixedly connected to the right side of the top end of the supporting shell (6); an air duct (13) is fixedly connected to the air outlet end of the fan (11); the other end of the air duct (13) is fixedly connected to the top end of a cooler (14); and the left end of the cooler (14) is fixedly connected to the right end of the supporting shell (6).

4. The gluing device for a protective film according to claim 1, characterized in that: The conveying assembly comprises support blocks (12) fixedly connected at the four corners of the top of the workbench (1), the front end of the left support block (12) is fixedly connected to a motor (2), the inner wall of the motor (2) is rotatably connected to a rotating shaft (15), the inner wall of the transmission roller (3) is fixedly connected to the outer wall of the rotating shaft (15), the rear side of the outer wall of the rotating shaft (15) is fixedly connected to a pulley (16), the two pulleys (16) are connected by a belt, and the inner wall of the top of the support block (12) is connected to a guide roller (5) through a clamping assembly.

5. The gluing device for a protective film according to claim 4, characterized in that: The clamping assembly comprises a spring tube (4) fixedly connected to the inner wall of the top end of the support block (12), the bottom end of the spring tube (4) is fixedly connected to a bearing (25), the inner wall of the bearing (25) is fixedly connected to a rotating shaft three (24), and the inner wall of the guide roller (5) is fixedly connected to the outer wall of the rotating shaft three (24).

6. The gluing device for a protective film according to claim 1, characterized in that: The outer wall of the feeding pipe (7) is fixedly connected to the inner wall of the supporting shell (6).

7. The gluing device for a protective film according to claim 2, characterized in that: The outer wall of the second rotating shaft (17) is rotatably connected to the inner wall of the rubber box (10).

8. The protective film gluing device according to claim 4, characterized in that: The front end of the rotating shaft 1 (15) on the left side is fixedly connected to the driving end of the motor 1 (2).

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