A printing film surface cleaning device

Abstract

This utility model discloses a film surface cleaning device for printing, including a base, a housing fixedly connected to the upper surface of the base, two brush rollers movably connected inside the housing, a power assembly for driving the brush rollers to rotate on one outer wall of the housing, a rotating shaft movably connected to the top inner wall of the housing, a U-shaped frame fixedly connected to the bottom end of the rotating shaft, a rotating roller movably connected inside the U-shaped frame, a connecting frame fixedly connected to one outer wall of the U-shaped frame, a bearing seat fixedly connected to one inner wall of the housing, a cylinder fixedly connected to the upper surface of the bearing seat, and one end of the cylinder piston rod rotatably connected to the connecting frame. This utility model can not only clean dust and impurities on the upper and lower surfaces of the film simultaneously, but also assist in film correction by adjusting the angle of the rotating rollers, and guide the film through multiple guide rollers.

Description

Technical Field

[0001] This utility model relates to the field of film cleaning technology, and in particular to a device for cleaning the surface of printed films. Background Technology

[0002] PVC film is a thin, soft, transparent or opaque sheet made from polyvinyl chloride resin as the main raw material, with the addition of various additives, and formed through molding processes such as calendering, blow molding, and casting. Cleaning PVC film is mainly to allow ink to adhere firmly to the surface of the PVC film.

[0003] The first guide roller, second guide roller, and third guide roller can accurately guide the film. As the film passes through each guide roller, its trajectory is effectively controlled, ensuring smooth passage through the cleaning area and preventing wrinkles or twisting during movement. This further guarantees cleaning and printing results. To better address these issues, promote the development of industry technology, and enhance core competitiveness, this application proposes a novel structural design that differs from existing technologies. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a device for cleaning the surface of printed films.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A film surface cleaning device for printing includes a base, a housing fixedly connected to the upper surface of the base, two brush rollers movably connected inside the housing, a power assembly for driving the brush rollers to rotate on one outer wall of the housing, a rotating shaft movably connected to the top inner wall of the housing, a U-shaped frame fixedly connected to the bottom end of the rotating shaft, a rotating roller movably connected inside the U-shaped frame, a connecting frame fixedly connected to one outer wall of the U-shaped frame, a bearing seat fixedly connected to one inner wall of the housing, a cylinder fixedly connected to the upper surface of the bearing seat, and one end of the cylinder piston rod rotatably connected to the connecting frame.

[0007] As a further embodiment of this utility model, the power assembly includes a support plate, which is fixed to one side of the outer wall of the housing by bolts. A self-locking motor is fixedly connected to the upper surface of the support plate. One end of each of the two brush rollers passes through the housing and is keyed to a sprocket. The two sprockets are driven by chain meshing. One end of the output shaft of the self-locking motor is fixed to its adjacent brush roller.

[0008] As a further embodiment of this invention, a first guide roller is movably connected inside the housing.

[0009] As a further improvement of this invention, a gap is left between the top plate of the U-shaped frame and the rotating roller.

[0010] As a further embodiment of this utility model, two mounting brackets are fixedly connected to the upper surface of the housing, and a second guide roller and a third guide roller are movably connected to the two mounting brackets respectively.

[0011] As a further embodiment of this utility model, the top of the housing is provided with an installation port, an infrared sensor is fixedly connected in the installation port, and the infrared sensor is electrically connected to the cylinder through a control module.

[0012] The beneficial effects of this utility model are as follows:

[0013] 1. In this utility model, by installing two brush rollers to clean the upper and lower surfaces of the film simultaneously, the dust and impurities on the upper and lower surfaces of the film are cleaned at the same time. Compared with a single brush roller, the cleaning efficiency is higher, further ensuring the cleanliness of the film surface before printing and improving the cleaning efficiency.

[0014] 2. In this utility model, the U-shaped frame rotates around the rotating shaft, and the angle of the rotating roller is adjusted to assist in film correction, avoiding uneven cleaning or printing misalignment caused by film deviation, reducing scrap rate, and improving production stability and continuity.

[0015] 3. In this utility model, the film can be guided by the combined use of the first guide roller, the second guide roller and the third guide roller, and the running trajectory of the film can be assisted in the control, further avoiding the film from wrinkling and twisting during the movement. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of a printing film surface cleaning device proposed in this utility model;

[0017] Figure 2 This is a partial cross-sectional view of a printing film surface cleaning device proposed in this utility model.

[0018] Figure 3 This is an enlarged structural diagram of part A of a printing film surface cleaning device proposed in this utility model.

[0019] In the diagram: 1. Base; 2. Second guide roller; 3. First guide roller; 5. Sprocket; 6. Housing; 7. Self-locking motor; 8. Chain; 9. Rotating shaft; 10. Infrared sensor; 11. Brush roller; 12. Rotating roller; 13. U-shaped frame; 14. Bearing seat; 15. Cylinder; 16. Connecting frame; 17. Third guide roller. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. The described embodiments are only some embodiments of the present utility model, not all embodiments. Other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are all within the protection scope of the present utility model.

[0021] Reference Figures 1-3 A film surface cleaning device for printing includes a base 1. A housing 6 is bolted to the upper surface of the base 1. Two brush rollers 11 are rotatably connected inside the housing 6. A power assembly for driving the brush rollers 11 to rotate is provided on one side of the outer wall of the housing 6. The power assembly includes a support plate, which is bolted to the outer wall of one side of the housing 6. A self-locking motor 7, model GW4058-31ZY, is bolted to the upper surface of the support plate. One end of the two brush rollers 11 passes through the housing 6 and is keyed to a sprocket 5. The two sprockets 5 are driven by a chain 8. One end of the output shaft of the self-locking motor 7 is fixed to its adjacent brush roller 11. The rotation of the self-locking motor 7, through the cooperation of the sprocket 5 and the chain 8, causes the brush rollers 11 to rotate, thereby cleaning dust and impurities on the upper and lower surfaces of the film.

[0022] In particular, a rotating shaft 9 is rotatably connected to the top inner wall of the housing 6. A U-shaped frame 13 is fixed to the bottom end of the rotating shaft 9 by bolts. A rotating roller 12 is rotatably connected inside the U-shaped frame 13. A connecting frame 16 is fixed to one outer wall of the U-shaped frame 13 by bolts. A bearing seat 14 is fixed to one inner wall of the housing 6 by bolts. A cylinder 15 is fixed to the upper surface of the bearing seat 14 by bolts. One end of the piston rod of the cylinder 15 is rotatably connected to the connecting frame 16. When the infrared sensor 10 detects the film offset, the cylinder 15 is activated by the control module. The extension and retraction of the cylinder 15 causes the connecting frame 16 to drive the U-shaped frame 13 to rotate around the rotating shaft 9 as the axis, thereby adjusting the angle of the rotating roller 12 and assisting in film correction.

[0023] It should be noted that the first guide roller 3 is rotatably connected inside the housing 6. A gap is left between the top plate of the U-shaped frame 13 and the rotating roller 12 to accommodate the film. Two mounting brackets are fixed to the upper surface of the housing 6 by bolts. The second guide roller 2 and the third guide roller 17 are rotatably connected to the two mounting brackets respectively. The second guide roller 2 and the third guide roller 17 can guide the film. An installation port is opened on the top of the housing 6. An infrared sensor 10 is fixed in the installation port by bolts. The infrared sensor 10 is model E3F-DS30Y1, and the infrared sensor 10 is electrically connected to the cylinder 15 through the control module.

[0024] Working principle: Pull one end of the film roll on the external unwinding mechanism so that it passes over the top of the second guide roller 2, then over the bottom of the first guide roller 3, passes through the gap between the top plate of the U-shaped frame 13 and the rotating roller 12, and then passes over the bottom of the third guide roller 17 to connect with the external winding mechanism. At this time, the upper surface of the film contacts the brush roller 11 located at the top of the housing 6, and the bottom of the film contacts the brush roller 11 located at the bottom. The external winding mechanism winds up the film, so that the film inside the housing 6 is moved.

[0025] When it is necessary to clean the surface of the film, start the self-locking motor 7. The rotation of the self-locking motor 7, through the cooperation of the sprocket 5 and the chain 8, causes the brush roller 11 to rotate, thereby cleaning the dust and impurities on the upper and lower surfaces of the film.

[0026] When the infrared sensor 10 detects film deviation, and film correction is required, the control module starts the cylinder 15. The cylinder 15 extends and retracts, causing the connecting frame 16 to drive the U-shaped frame 13 to rotate around the rotating shaft 9, thereby adjusting the angle of the rotating roller 12 and assisting in film correction.

[0027] Furthermore, the terms "installation," "setup," "connection," and "socketing" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral constructions; they can refer to mechanical or electrical connections; they can refer to direct connections or indirect connections via an intermediate medium, or internal connections between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

Claims

1. A film surface cleaning device for printing, comprising a base (1), characterized in that, The upper surface of the base (1) is fixedly connected to a housing (6). Two brush rollers (11) are movably connected inside the housing (6). A power assembly for driving the brush rollers (11) to rotate is provided on one side of the outer wall of the housing (6). A rotating shaft (9) is movably connected to the top inner wall of the housing (6). A U-shaped frame (13) is fixedly connected to the bottom end of the rotating shaft (9). A rotating roller (12) is movably connected inside the U-shaped frame (13). A connecting frame (16) is fixedly connected to one side of the outer wall of the U-shaped frame (13). A bearing seat (14) is fixedly connected to one side of the inner wall of the housing (6). A cylinder (15) is fixedly connected to the upper surface of the bearing seat (14). One end of the piston rod of the cylinder (15) is rotatably connected to the connecting frame (16).

2. A film surface cleaning device for printing according to claim 1, wherein The power assembly includes a support plate, which is fixed to the outer wall of one side of the housing (6) by bolts. A self-locking motor (7) is fixedly connected to the upper surface of the support plate. One end of each of the two brush rollers (11) passes through the housing (6) and is keyed to a sprocket (5). The two sprockets (5) are driven by a chain (8). One end of the output shaft of the self-locking motor (7) is fixed to its adjacent brush roller (11).

3. A film surface cleaning device for printing according to claim 1, wherein The housing (6) is movably connected to a first guide roller (3).

4. The film surface cleaning apparatus for printing according to claim 1, wherein A gap is left between the top plate of the U-shaped frame (13) and the rotating roller (12).

5. The film surface cleaning apparatus for printing according to claim 1, wherein Two mounting brackets are fixedly connected to the upper surface of the housing (6), and a second guide roller (2) and a third guide roller (17) are movably connected to the two mounting brackets respectively.

6. A film surface cleaning apparatus for printing according to claim 1, wherein The top of the housing (6) has an installation port, and an infrared sensor (10) is fixedly connected inside the installation port. The infrared sensor (10) is electrically connected to the cylinder (15) through the control module.

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