A composite film coating mechanism

By introducing a scraper groove and a scraper into the composite film coating mechanism, and using a motor-driven ball screw to smooth the coating, the problem of uneven coating is solved, and efficient utilization of coating and automated production are achieved.

CN224308833UActive Publication Date: 2026-06-02JIANGYIN HUAYUAN ALUMINUM PLASTIC PACKAGING CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIANGYIN HUAYUAN ALUMINUM PLASTIC PACKAGING CO LTD
Filing Date
2025-05-23
Publication Date
2026-06-02

AI Technical Summary

Technical Problem

Traditional composite film coating machines result in uneven coating thickness on the surface of the composite film after coating operations, which affects the appearance, is inefficient, and causes significant waste of coating.

Method used

A composite film coating mechanism was designed, comprising a coating mechanism, a scraper groove, and a scraper. A dual-head motor drives forward and reverse ball screws to move a sliding plate and a scraper to scrape off excess coating on the surface of the composite film and collect it back into the coating tank for reuse. Combined with a heater, the coating is prevented from sticking together, and automatic winding is achieved.

Benefits of technology

It ensures uniform coating thickness, improves production efficiency, reduces rework time and coating waste, and enhances the automation level of the operation.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224308833U_ABST
    Figure CN224308833U_ABST
Patent Text Reader

Abstract

The utility model relates to composite film processing technical field, and disclose a kind of composite film coating mechanism, including workbench, coating mechanism is installed in the middle of workbench upper end, support plate is installed in the lower part of workbench left side wall, coating liquid tank is installed in the rear part of support plate upper end, two ducts are installed in the upper end of coating liquid tank, and the upper end of duct is connected with coating mechanism by two small pipes;Scraper groove is installed in the front part of workbench upper end, two sliding plates are installed in the inside of scraper groove, and two scrapers are arranged in the inner end of sliding plate.The utility model in the present application, start double-end motor, rotate by motor shaft driving forward and reverse ball screw, drive two screw slides to move inward, to drive two sliding plates to move inward, two scrapers extrude composite film extrusion, and the coating of composite film surface excess is scraped flat, and enters into notch, guarantees that coating thickness is uniform, with flatness, does not affect the appearance, reduces the rework time of later stage, improves the efficiency of operation.
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Description

Technical Field

[0001] This utility model relates to the field of composite film processing technology, specifically a composite film coating mechanism. Background Technology

[0002] In modern industrial production, composite films are increasingly widely used, such as in food packaging, pharmaceutical packaging, and electronic product packaging. Composite films are typically composed of layers of materials with different properties to achieve specific functions, such as barrier properties, mechanical strength, and heat-sealing properties. The coating process is one of the key steps in the production of composite films, enabling the uniform application of one or more functional coatings to the film surface, thereby further improving the performance of the composite film.

[0003] Traditional composite film coating machines leave a lot of paint residue on the surface of the composite film after coating. Because there is no scraping structure, the paint thickness on the surface of the composite film is uneven and lacks smoothness, which affects the appearance, increases the rework time, reduces the efficiency of operation, and causes more paint waste. Utility Model Content

[0004] To address the shortcomings of existing technologies, this invention provides a composite film coating mechanism that has advantages such as high efficiency and solves the problems mentioned in the background technology.

[0005] To achieve the above-mentioned efficiency, this utility model provides the following technical solution: a composite film coating mechanism, including a worktable, a coating mechanism installed at the middle of the upper part of the worktable, a support plate installed at the lower part of the left side wall of the worktable, a coating liquid tank installed at the rear of the upper part of the support plate, and two conduits installed at the upper end of the coating liquid tank, the upper ends of the conduits being connected to the coating mechanism through two small tubes.

[0006] A scraper groove is installed at the front of the upper end of the worktable. Two sliding plates are installed inside the scraper groove. Two scrapers are provided at the inner end of each sliding plate. A drive box is installed at the left end of the scraper groove. A dual-head motor is installed in the middle of the drive box. Both ends of the dual-head motor are provided with forward and reverse ball screws. A screw slide is provided on each forward and reverse ball screw. The right end of the screw slide is fixedly connected to the sliding plate.

[0007] As a further improvement of this utility model: a collection trough is installed at the front upper part of the support plate, and a notch is provided at the front upper part of the worktable. The left end of the notch is connected to the collection trough, and the rear end wall of the collection trough is connected to the coating tank through a pipe. The coating flows into the collection trough and enters the coating tank through the pipe for reuse, thereby saving coating.

[0008] As a further improvement of this utility model: a storage slot is provided on the rear part of the left side wall of the workbench, and two partitions are installed inside the storage slot for storing items and making them easy to retrieve.

[0009] As a further improvement of this utility model: four casters are installed at the four corners of the lower end of the workbench, and the four casters facilitate the movement of the device.

[0010] As a further embodiment of this utility model: a first fixing plate is installed on the upper right front part of the worktable, a drive motor is installed on the right side of the first fixing plate, and a winding rod is installed on the front end of the drive motor through the motor shaft. A second fixing plate is installed on the upper right rear part of the worktable, and a placement rod is installed on the left end of the second fixing plate. The front end of the composite film is wound onto the winding rod. When the drive motor is started, the drive motor drives the winding rod to rotate through the motor shaft, thereby realizing the automatic winding operation of the composite film.

[0011] As a further improvement of this utility model: a heater is installed on the upper part of the left side wall of the coating tank. The heater heats the coating in the coating tank, preventing the coating from sticking together and improving the coating efficiency.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] In this invention, a dual-head motor is started, which drives the forward and reverse ball screws to rotate via the motor shaft. This causes the two screw slides to move inward, which in turn causes the two sliding plates to move inward. Two scrapers press and squeeze the composite film, smoothing out excess coating on the surface of the composite film and guiding it into the recess. This ensures uniform coating thickness, flatness, and does not affect the appearance. It also reduces rework time and improves work efficiency. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the operation process of this utility model;

[0016] Figure 3 This is a schematic diagram of the appearance of the scraper in this utility model;

[0017] Figure 4 In this utility model Figure 3 Enlarged schematic diagram of point A.

[0018] In the diagram: 1. Workbench; 2. Casters; 3. Storage tank; 4. Coating tank; 5. Conduit; 6. Placement rod; 7. Coating mechanism; 8. Scraper groove; 9. Rewinding rod; 10. Drive motor; 11. Sliding plate; 12. Scraper; 13. Dual-head motor; 14. Screw slide; 15. Forward and reverse ball screw; 16. Heater; 17. Support plate; 18. Collection tank. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] It should be noted that the coating mechanism 7 and the heater 16 are existing technologies and are common knowledge to those skilled in the art, and will not be described in detail here.

[0021] Please see Figures 1-4 In this embodiment of the utility model, a composite film coating mechanism includes a workbench 1, a coating mechanism 7 is installed in the middle of the upper end of the workbench 1, a support plate 17 is installed in the lower part of the left side wall of the workbench 1, a coating liquid tank 4 is installed in the rear of the upper end of the support plate 17, and two conduits 5 are installed in the upper end of the coating liquid tank 4. The upper ends of the conduits 5 are connected to the coating mechanism 7 through two small tubes.

[0022] A scraper groove 8 is installed at the front of the upper end of the workbench 1. Two sliding plates 11 are installed inside the scraper groove 8. Two scrapers 12 are provided at the inner end of each sliding plate 11. A drive box is installed at the left end of the scraper groove 8. A double-head motor 13 is installed in the middle of the drive box. Both ends of the double-head motor 13 are provided with forward and reverse ball screws 15. A screw slide 14 is provided on each forward and reverse ball screw 15. The right end of the screw slide 14 is fixedly connected to the sliding plate 11.

[0023] The support plate 17 has a collection trough 18 installed at the front upper part, and the workbench 1 has a notch at the front upper part. The left end of the notch is connected to the collection trough 18. The rear wall of the collection trough 18 is connected to the coating tank 4 through a pipe. The coating flows into the collection trough 18 and then into the coating tank 4 through the pipe for reuse, thus saving coating. The workbench 1 has a storage trough 3 at the rear left side wall. The storage trough 3 has two partitions installed inside for storing items for easy retrieval. The workbench 1 has four casters 2 installed at the four corners at the lower end for easy movement of the device. A first fixing plate is installed on the upper right front part, and a drive motor 10 is installed on the right side of the first fixing plate. A winding rod 9 is installed on the front end of the drive motor 10 through the motor shaft. A second fixing plate is installed on the upper right rear part of the worktable 1, and a placement rod 6 is installed on the left end of the second fixing plate. The front end of the composite film is wound onto the winding rod 9. The drive motor 10 is started, and the drive motor 10 drives the winding rod 9 to rotate through the motor shaft, thereby realizing the automatic winding operation of the composite film. A heater 16 is installed on the upper left side wall of the coating tank 4. The heater 16 heats the coating in the coating tank 4 to prevent the coating from sticking together and improve the coating efficiency.

[0024] The working principle of this utility model is as follows: The device is connected to a power source and kept energized. The composite film is wound onto the placement rod 6, and the front end of the composite film enters the coating mechanism 7. The coating liquid in the coating tank 4 enters the coating mechanism 7 through two conduits 5 to coat the surface of the composite film. After coating is completed, the front end of the composite film enters the scraper groove 8. The dual-head motor 13 is started, driving the forward and reverse ball screws 15 to rotate via the motor shaft. This causes the two screw slides 14 to move inward, thereby moving the two sliding plates 11 inward. The two scrapers 12 squeeze the composite film, scraping off excess coating from the surface and allowing it to enter the recess, flow into the collection tank 18, and then through a pipe into the coating tank 4 for reuse, thus saving coating. The front end of the composite film is then wound onto the take-up rod 9. The drive motor 10 is started, driving the take-up rod 9 to rotate via the motor shaft, thus achieving automatic winding of the composite film.

[0025] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A composite film coating mechanism, comprising a workbench (1), a coating mechanism (7) installed at the middle of the upper end of the workbench (1), a support plate (17) installed at the lower part of the left side wall of the workbench (1), a coating tank (4) installed at the rear of the upper end of the support plate (17), and two conduits (5) installed at the upper end of the coating tank (4), the upper ends of the conduits (5) being connected to the coating mechanism (7) through two small tubes; Its features are: The workbench (1) has a scraper groove (8) installed at the front of the upper end. Two sliding plates (11) are installed inside the scraper groove (8). Two scrapers (12) are provided at the inner end of each sliding plate (11). A drive box is installed at the left end of the scraper groove (8). A double-head motor (13) is installed in the middle of the drive box. Both ends of the double-head motor (13) are provided with forward and reverse ball screws (15). Each forward and reverse ball screw (15) is provided with a screw slide (14). The right end of each screw slide (14) is fixedly connected to the sliding plate (11).

2. The composite film coating mechanism according to claim 1, characterized in that: The support plate (17) has a collection tank (18) installed at the front of its upper end. The workbench (1) has a notch at the front of its upper end. The left end of the notch is connected to the collection tank (18). The rear end wall of the collection tank (18) is connected to the coating tank (4) through a pipe.

3. The composite film coating mechanism according to claim 1, characterized in that: The workbench (1) has a storage slot (3) on the rear left side wall, and two partitions are installed inside the storage slot (3).

4. The composite film coating mechanism according to claim 1, characterized in that: The workbench (1) is equipped with casters (2) at the four corners of its lower end, and there are four casters (2).

5. A composite film coating mechanism according to claim 1, characterized in that: A first fixing plate is installed on the upper right front part of the workbench (1), and a drive motor (10) is installed on the right side of the first fixing plate. A winding rod (9) is installed on the front end of the drive motor (10) through the motor shaft. A second fixing plate is installed on the upper right rear part of the workbench (1), and a placement rod (6) is installed on the left end of the second fixing plate.

6. The composite film coating mechanism according to claim 1, characterized in that: A heater (16) is installed on the upper left side wall of the coating tank (4).