Multifunctional solvent-free compound machine for strip window

Abstract

The utility model relates to the field of solvent-free compounding machines, in particular to a strip window multifunctional solvent-free compounding machine which comprises a bridge frame, a bottom film unwinding mechanism and a gluing mechanism are installed on a left side supporting plate of the bridge frame, and a composite film unwinding mechanism, a compounding mechanism and a winding mechanism are installed on a right side supporting plate of the bridge frame. The gluing mechanism is used for gluing a bottom film unwound by the bottom film unwinding mechanism and comprises a pressing roller and a glue roller, a glue circulating mechanism is installed in a supporting plate on the left side of the bridge frame and comprises a bush wound on the pressing roller and a glue collecting tank on one side of the bush, and the bottom of the glue collecting tank communicates with the glue roller through a glue pipeline; the compounding mechanism is used for compounding the glued bottom film and the composite film unwound by the composite film unwinding mechanism; and the winding mechanism is used for winding the compounded bottom film and composite film. According to the device, redundant glue can be collected and recycled, the production cost is effectively reduced, and the production efficiency is improved.

Description

Technical Field

[0001] The present application relates to the field of solvent-free laminating machines, and in particular to a multifunctional solvent-free laminating machine with a strip window. Background Art

[0002] Solvent-free printing machines require gluing the printed substrate before sending it to the laminating printing station for laminating film bonding and printing. Currently, there is a type of printed product on the market that is used as the substrate for window bags after printing. This type of printed product often has a window on the substrate. During the gluing operation, due to the presence of the window, when the pressure roller and rubber roller of the gluing assembly work together to apply glue, some glue will directly flow onto the pressure roller and overflow, causing the glue to flow to other components and cause contamination, and may also interfere with the normal operation of other components.

[0003] Chinese patent CN211165760U discloses a solvent-free laminating machine for windowed kraft paper, comprising a bridge frame, a base film unwinding mechanism and a gluing mechanism mounted on the left support plate of the bridge frame, and a composite film unwinding mechanism, a composite mechanism, and a rewinding mechanism mounted on the right support plate of the bridge frame. The machine is characterized in that a liner film unwinding mechanism and a liner film rewinding mechanism are mounted on the crossbeam of the bridge frame near the left support plate. The liner film unwound by the liner film unwinding mechanism and the base film unwound by the base film unwinding mechanism, after being combined, enter the gluing mechanism. The gluing mechanism applies glue to the base film and the surface of the liner film aligned with the window opening of the base film. The glued liner film is rewound by the liner film rewinding mechanism. After reaching the right support plate of the bridge frame, the glued base film enters the rewinding mechanism. The composite film unwound by the composite film unwinding mechanism also enters the rewinding mechanism. The base film and composite film are composited in the rewinding mechanism and then rewound by the rewinding mechanism. This utility model can realize solvent-free laminating production of windowed kraft paper and has a simple structure. However, in the prior art, by providing a liner film unwinding mechanism and a liner film winding mechanism, the glue is prevented from being applied to the pressure roller of the gluing mechanism through the window opening of the kraft paper during the gluing process.

[0004] However, in actual use, after the gluing is completed, the base film and the liner film are laminated together for rolling, and then the liner film is rolled into the liner film winding mechanism. The base film and the liner film are glued together during gluing, and the glue on the liner film will be scrapped after the liner film is rolled up, resulting in a waste of glue. In addition, the base film and the liner film are easily adhered together during the lamination and rolling process, resulting in the base film being torn, deformed, or even broken when the base film is separated from the liner film, affecting the subsequent printing operation of the base film. Utility Model Content

[0005] In order to overcome the problems existing in the prior art, the present application provides a multifunctional solvent-free laminating machine for opening windows.

[0006] The present application provides a multifunctional solvent-free laminating machine for opening windows, which adopts the following technical solutions:

[0007] A multifunctional solvent-free laminating machine for opening windows comprises a bridge frame, wherein the left support plate of the bridge frame is provided with a base film unwinding mechanism and a gluing mechanism, and the right support plate of the bridge frame is provided with a composite film unwinding mechanism, a composite mechanism and a winding mechanism, the gluing mechanism is used to glue the base film unwound by the base film unwinding mechanism, and comprises a pressure roller and a rubber roller, a glue circulation mechanism is installed in the left support plate of the bridge frame, and comprises a bushing wound on the pressure roller and a glue collecting tank on one side of the bushing, and the bottom of the glue collecting tank is connected to the rubber roller through a glue pipeline, the composite mechanism is used to composite the base film after gluing with the composite film unwound by the composite film unwinding mechanism, and the winding mechanism is used to wind up the base film and the composite film after composite.

[0008] By adopting the above technical solution, the base film unwinding mechanism begins operating, unwinding the base film. The unwound base film then enters the gluing mechanism, where the pressure roller and rubber roller cooperate to apply glue to the base film. During this process, the glue circulation mechanism operates simultaneously, collecting excess glue via a bushing mounted on the pressure roller and a glue collection trough on one side of the bushing. The glue is then transported back to the rubber roller via a glue pipeline at the bottom of the collection trough, recycling the glue, improving glue utilization and saving costs. Simultaneously with the base film being glued, the composite film unwinding mechanism begins operating, unwinding the composite film. The glued base film and the composite film released by the composite film unwinding mechanism enter the laminating mechanism, which laminates the base film and composite film together to ensure a tight fit. The laminated base film and composite film enter the rewinding mechanism, which rewinds the laminated materials, completing the entire laminating process.

[0009] Preferably, the gluing mechanism is provided with a first tensioning roller and a second tensioning roller for tensioning the base film in front and behind, respectively, and the laminating mechanism is provided with a third tensioning roller and a fourth tensioning roller for tensioning the composite film and the composite film and the base film after lamination in front and behind, respectively.

[0010] By adopting the above technical solution, the base film unwinding mechanism begins unwinding the base film. The base film first passes over the first tensioning roller, which initially tensions the base film, ensuring it is flat and has a certain tension, facilitating subsequent gluing operations. After gluing, the base film passes over the second tensioning roller for further tensioning. The second tensioning roller further adjusts the tension of the base film, ensuring that the base film enters the laminating mechanism in a stable state. The composite film unwinding mechanism unwinds the composite film, which first passes over the third tensioning roller, which tensions the composite film to ensure its flatness and tension. After lamination, the base film and composite film pass over the fourth tensioning roller, which tensions the composite material to maintain a flat and tight state.

[0011] Preferably, the liner is on the pressure roller, wherein the liner is provided with a protrusion adapted to the strip window on the bottom film, and the thickness of the protrusion is equal to the thickness of the bottom film.

[0012] Preferably, a glue scraping groove is installed on one side of the glue collecting groove close to the pressure roller, wherein a scraping roller is installed on the glue scraping groove, and scraping plates are installed around the scraping roller.

[0013] Preferably, a glue pump is installed at the bottom of the glue scraping groove, and the glue pump is connected to the glue groove at the bottom of the rubber roller through a glue pipeline.

[0014] Preferably, the liner is a flexible sleeve, wherein abutting rollers for abutting the liner and the base film are provided on both sides of the pressing roller.

[0015] Preferably, a plurality of transmission rollers are provided on the side of the bushing away from the base film, wherein the transmission rollers are provided with patterns adapted to the inner wall of the bushing.

[0016] By adopting the above technical solution, when the gluing mechanism is in operation, the bushing on the pressure roller engages with the bottom film with the strip window. The protrusions on the bushing are embedded in the strip window on the bottom film. The thickness of the protrusions is equal to that of the bottom film. This prevents the strip window from being affected by the glue during the gluing process, ensuring accurate gluing and a clean strip window area. After the glued bottom film and bushing are separated, a glue collection trough collects the glue on the bushing. The scraper roller in the glue scraper trough near the pressure roller rotates, driving the scraper plates around it to scrape excess glue off the pressure roller and collect it in the glue scraper trough. A glue pump installed at the bottom of the glue scraper trough is activated, transferring the collected glue through a glue pipeline to the glue trough at the bottom of the rubber wheel, achieving glue recycling, improving glue utilization and saving costs. Furthermore, the bushing is a flexible sleeve, and abutment rollers on both sides of the pressure roller abut the bushing against the bottom film, ensuring stable and accurate gluing. Several transmission rollers arranged on the side of the bushing away from the base film start to run. The transmission rollers are equipped with patterns that match the inner wall of the bushing. The patterns drive the bushing to move, ensuring the synchronous operation of the bushing and the base film, thereby improving the gluing efficiency and quality.

[0017] In summary, this application includes at least one of the following beneficial technical effects:

[0018] 1. This application uses a bushing that cooperates with the strip window on the base film to prevent glue in the window from entering the pressure roller and affecting the normal operation of the laminating machine. The bushing is set in the glue circulation mechanism to effectively collect and recycle excess glue. Compared with the traditional liner method, it effectively reduces production costs.

[0019] 2. The various mechanisms in this application work together to achieve continuous operations of base film unwinding, gluing, composite film unwinding, composite and winding, greatly improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the overall structure of a multifunctional solvent-free laminating machine with a strip window;

[0021] Figure 2 yes Figure 1 Enlarged view of the middle gluing mechanism.

[0022] Explanation of the accompanying drawings: 1. Bridge; 2. Left support plate; 21. Bottom film unwinding mechanism; 22. Gluing mechanism; 221. Pressure roller; 222. Glue roller; 3. Right support plate; 31. Composite film unwinding mechanism; 32. Composite mechanism; 33. Rewinding mechanism; 4. Glue circulation mechanism; 41. Bushing; 42. Glue collecting tank; 43. Glue pipeline; 44. Glue scraping tank; 441. Scraping roller; 442. Scraping plate; 443. Glue pump; 444. Glue tank; 45. Abutting roller; 46. Transmission roller; 5. First tensioning roller; 6. Second tensioning roller; 7. Third tensioning roller; 8. Fourth tensioning roller; 9. Bottom film; 10. Composite film. DETAILED DESCRIPTION

[0023] The following is combined with Figure 1-2 This application is described in further detail.

[0024] The embodiment of the present application discloses a multifunctional solvent-free laminating machine for opening strip windows.

[0025] Reference Figure 1 and Figure 2A multifunctional solvent-free laminating machine for slit windows. The left support plate 2 of the bridge 1 is equipped with a base film unwinding mechanism 21 and a gluing mechanism 22. When the base film unwinding mechanism 21 begins operating, it unwinds the base film 9. The base film 9 first passes over the first tensioning roller 5, which initially tensions the base film 9, keeping it flat and having a certain tension, facilitating subsequent gluing operations. The unwound base film 9 enters the gluing mechanism 22, where the pressure roller 221 and the glue roller 222 cooperate to gluing the base film 9. The gluing mechanism 22 glues the bottom film 9 unwound by the bottom film 9 unwinder, and a glue circulation mechanism 4 is installed in the left support plate 2 of the bridge 1, including a bushing 41 wrapped around the pressure roller 221 and a glue collecting tank 42 on one side of the bushing 41, wherein the bottom of the glue collecting tank 42 is connected to the glue roller 222 through a glue pipeline 43. During the gluing process, the glue circulation mechanism 4 runs simultaneously, and the bushing 41 on the pressure roller 221 cooperates with the bottom film 9 with the strip window, and is embedded in the strip window on the bottom film 9 through the protrusion on the bushing 41. The thickness of the protrusion is equal to the thickness of the bottom film 9, so that during the gluing process of the bottom film 9, the strip window part is not affected by the glue liquid, thereby ensuring the accuracy of the gluing of the bottom film 9 and the cleanliness of the strip window part. After the glued bottom film 9 is separated from the bushing 41, the glue collecting tank 42 collects the glue on the bushing 41. The scraping roller 441 on the glue scraping groove 44 near the pressure roller 221 of the glue collecting tank 42 rotates and drives the scraping plates 442 around it to scrape the excess glue on the pressure roller 221 to the glue scraping groove 44 for collection. The glue pump 443 installed at the bottom of the glue scraping groove 44 is started and the collected glue is transported to the glue groove 444 at the bottom of the rubber wheel through the glue pipeline 43, realizing the recycling of glue, improving the utilization rate of glue and saving costs. After the glue is applied, the bottom film 9 is tensioned again by the second tensioning roller 6. The second tensioning roller 6 further adjusts the tension of the bottom film 9 so that the bottom film 9 enters the composite mechanism 32 in a stable state. While the base film 9 is being glued, the composite film unwinding mechanism 31 installed on the right support plate 3 of the bridge frame 1 starts working and releases the composite film 10. The composite film unwinding mechanism 31 releases the composite film 10, and the composite film 10 first passes through the third tensioning roller 7. The third tensioning roller 7 tensions the composite film 10 to ensure the flatness and tension of the composite film 10. The base film 9 after gluing and the composite film 10 released by the composite film unwinding mechanism 31 enter the compounding mechanism 32 together. The compounding mechanism 32 compounds the base film 9 and the composite film 10 so that the two fit tightly together. After compounding, the base film 9 and the composite film 10 pass through the fourth tensioning roller 8. The fourth tensioning roller 8 tensions the composited materials so that the composited materials remain flat and tight. The composited base film 9 and the composite film 10 enter the winding mechanism 33. The winding mechanism 33 winds up the composited materials to complete the entire compounding process.

[0026] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A multifunctional solvent-free laminating machine for opening windows, characterized by: The invention comprises a bridge frame (1), a left side support plate (2) of the bridge frame (1) is provided with a bottom film unwinding mechanism (21) and a gluing mechanism (22), and a right side support plate (3) of the bridge frame (1) is provided with a composite film unwinding mechanism (31), a composite mechanism (32) and a rewinding mechanism (33), and is characterized in that: the gluing mechanism (22) is used for gluing the bottom film (9) unwound by the bottom film unwinding mechanism (21), and comprises a pressure roller (221) and a glue roller (222), and the left side support plate ( 2) A glue circulation mechanism (4) is installed inside, including a bushing (41) wound around the pressure roller (221) and a glue collecting tank (42) on one side of the bushing (41), and the bottom of the glue collecting tank (42) is connected to the glue roller (222) through a glue pipeline (43), the laminating mechanism (32) is used for laminating the base film (9) after gluing and the composite film (10) unrolled by the composite film unwinding mechanism (31), and the winding mechanism (33) is used for winding the base film (9) and the composite film (10) after lamination.

2. The multifunctional solvent-free laminating machine for opening strip windows according to claim 1, characterized in that: The gluing mechanism (22) is provided with a first tensioning roller (5) and a second tensioning roller (6) for tensioning the base film (9) at the front and rear, respectively; the compounding mechanism (32) is provided with a third tensioning roller (7) and a fourth tensioning roller (8) for tensioning the composite film (10) and tensioning the composite film (10) and the base film (9) after compounding at the front and rear, respectively.

3. The multifunctional solvent-free laminating machine for opening strip windows according to claim 1, characterized in that: The bushing (41) is on the pressing roller (221), wherein the bushing (41) is provided with a protrusion adapted to the upper window of the bottom film (9), and the thickness of the protrusion is equal to the thickness of the bottom film (9).

4. The multifunctional solvent-free laminating machine for opening strip windows according to claim 3, characterized in that: A glue scraping groove (44) is installed on one side of the glue collecting groove (42) close to the pressure roller (221), wherein a scraping roller (441) is installed on the glue scraping groove (44), and scraping plates (442) are installed around the scraping roller (441).

5. The multifunctional solvent-free laminating machine for opening strip windows according to claim 4, characterized in that: A glue pump (443) is installed at the bottom of the glue scraping groove (44), and the glue pump (443) is connected to the glue groove (444) at the bottom of the glue roller (222) through a glue pipeline (43).

6. The multifunctional solvent-free laminating machine for opening strip windows according to claim 5, characterized in that: The liner (41) is a flexible sleeve, wherein abutting rollers (45) for abutting the liner (41) and the bottom film (9) are provided on both sides of the pressing roller (221).

7. The multifunctional solvent-free laminating machine for opening strip windows according to claim 6, characterized in that: A plurality of transmission rollers (46) are provided on the side of the bushing (41) away from the bottom film (9), wherein the transmission rollers (46) are provided with patterns adapted to the inner wall of the bushing (41).

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