A film laminating device for processing PET sheet

Abstract

The utility model relates to PET sheet processing technical field, concretely discloses a laminating device for PET sheet processing, include: laminating device main body frame is fixedly connected with laminating roller on laminating device main body frame, is equipped with the conveyer belt on laminating device main body frame, the side away from laminating roller of laminating device main body frame is equipped with cleaning assembly, and the PET sheet surface of laminating is cleaned to cleaning assembly, is equipped with adjusting assembly in cleaning assembly, and adjusting assembly is adaptively regulated to the part in cleaning assembly, and the cleaning assembly that sets up is through the rough cleaning of cleaning roller and the fine cleaning of fiber cloth and is classified layout and promotes the cleanliness, and the elastic buffer structure of adjusting assembly can be adaptively adjusted cleaning pressure and prevent scratching with sheet state, and the whole cooperation can efficiently reduce laminating bubble, the problem of virtual sticking, and the continuous production efficiency and product yield are given priority to.

Description

Technical Field

[0001] This utility model relates to the field of PET sheet processing technology, specifically a coating device for PET sheet processing. Background Technology

[0002] PET sheets are an important type of thermoplastic polyester. PET sheets are a thermoplastic environmentally friendly plastic product that is widely used in packaging for cosmetics, food, electronics, toys, printing and other industries. As a type of plastic sheet, PET sheets sometimes need to be covered with a protective film to provide protection. With the increasing domestic demand, the use of thermoformed plastic sheets with film coating is becoming more and more widespread.

[0003] In existing laminating equipment, when laminating PET sheets, the sheets typically pass under the laminating rollers via the conveyor belt. The laminating rollers then press the protective film onto the surface of the PET sheet for lamination. However, when the PET sheets are removed from the laminating workshop for further lamination, larger PET sheets are prone to dust accumulation on the conveyor belt surface. When dusty sheets enter the laminating rollers for lamination, it significantly affects the lamination effect. Therefore, we propose a laminating device for PET sheet processing. Utility Model Content

[0004] The purpose of this invention is to provide a coating device for PET sheet processing, in order to solve the problem mentioned in the background art that when existing coating devices are used to coat PET sheets, the sheets usually pass under the coating rollers after passing through the conveyor belt of the coating device. The coating rollers can press the protective film onto the surface of the PET sheet for coating. When the PET sheets are taken out of the coating workshop for coating, larger PET sheets are easily covered with dust when placed on the surface of the conveyor belt of the coating device. When the dusty sheets enter the coating rollers of the coating device for coating, it will greatly affect the coating effect of the PET sheets.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a coating device for PET sheet processing, comprising: a main frame of the coating device, a coating roller fixedly connected to the main frame of the coating device, a conveyor belt provided on the main frame of the coating device, a cleaning component provided on the side of the main frame of the coating device away from the coating roller, the cleaning component cleaning the surface of the PET sheet to be coated, and an adjustment component provided inside the cleaning component, the adjustment component adaptively adjusting the components inside the cleaning component.

[0006] The cleaning component includes a first slide rail fixedly connected to the main frame of the film covering device, a sliding plate slidably connected inside the first slide rail, and a fiber wiping cloth provided on the side of the sliding plate near the conveyor belt. It also includes a second slide rail, which is fixedly connected to the main frame of the laminating device and located upstream of the PET sheet conveying direction. A slider is slidably connected inside the second slide rail, and a cleaning roller is fixedly connected to the slider.

[0007] The adjustment component includes a telescopic rod that is fixedly connected to the inner wall of the second slide rail away from the conveyor belt, the other end of the telescopic rod is fixedly connected to the slider, and a spring is provided on the outside of the telescopic rod. One end of the spring is fixedly connected to the inner wall of the second slide rail, and the other end of the spring is fixedly connected to the slider. It also includes an electric push rod, the output end of which is fixedly connected to the side of the sliding plate away from the conveyor belt.

[0008] The cleaning component is equipped with a dust collection hood on its outer side, a dust collection pipe is fixedly connected to the dust collection hood, and a dust collection box is fixedly connected to the other end of the dust collection pipe.

[0009] The fiber cloth is detachably connected to the sliding plate via Velcro.

[0010] The cleaning roller is made of anti-static nylon.

[0011] The outer periphery of the sweeping roller is detachably fitted with a sweeping brush sleeve.

[0012] This utility model has at least the following beneficial effects: In use, the cleaning components of this invention improve cleanliness through a graded layout of coarse cleaning with a sweeping roller and fine cleaning with a fiber cloth. The elastic buffer structure of the components can adaptively adjust the cleaning pressure according to the condition of the sheet to prevent scratches. The overall coordination can effectively reduce problems such as lamination bubbles and loose adhesion, while taking into account both continuous production efficiency and product yield. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the cleaning component of this utility model; Figure 3 This is a partial schematic diagram of the cleaning component of this utility model; Figure 4 This is a partial schematic diagram of the adjustment component of this utility model.

[0014] In the diagram: 1. Main frame of the film coating device; 2. Film coating roller; 3. Conveyor belt; 4. Cleaning component; 41. First slide rail; 42. Sliding plate; 43. Fiber wiping cloth; 44. Second slide rail; 45. Slider; 46. Cleaning roller; 5. Adjustment component; 51. Telescopic rod; 52. Spring; 53. Electric push rod; 6. Dust collection hood; 7. Dust collection pipe; 8. Dust collection box; 9. Cleaning brush sleeve. Detailed Implementation

[0015] 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.

[0016] Example 1 Please see Figures 1 to 4 This utility model provides a technical solution: a PET sheet processing laminating device, comprising: a laminating device main frame 1, a laminating roller 2 fixedly connected to the laminating device main frame 1, a conveyor belt 3 provided on the laminating device main frame 1, and a cleaning component 4 provided on the side of the laminating device main frame 1 away from the laminating roller 2. The cleaning component 4 cleans the surface of the PET sheet to be laminated, and an adjusting component 5 is provided inside the cleaning component 4, which adaptively adjusts the components inside the cleaning component 4. The laminating device main frame 1 is made of high-strength steel welded frame with powder coating for rust prevention, which can ensure the structural stability and non-deformation of the device during long-term use, providing reliable support for subsequent laminating and cleaning processes. The laminating roller 2 is covered with a wear-resistant rubber layer, which can provide uniform and stable laminating pressure to adapt to the laminating requirements of PET sheets of different thicknesses. The conveyor belt 3 is covered with an anti-static silicone layer, which can ensure the horizontal and stable transport of the sheet while preventing static electricity. A cleaning component 4 is installed on the upstream side of the PET sheet conveying path, away from the coating roller 2, on the main frame 1 of the laminating device. The cleaning component 4 can thoroughly clean dust, lint, and other impurities from the surface of the PET sheet to be laminated, preventing impurities from affecting the lamination adhesion. The adjusting component 5 can adaptively adjust the cleaning parts within the cleaning component 4 according to the thickness fluctuations and surface flatness of the PET sheet, ensuring a stable cleaning effect for PET sheets of different specifications.

[0017] The cleaning component 4 includes a first slide rail 41 fixedly connected to the main frame 1 of the laminating device, with a sliding plate 42 slidably connected inside the first slide rail 41. A fiber wiping cloth 43 is provided on the side of the sliding plate 42 near the conveyor belt 3. It also includes a second slide rail 44, which is fixedly connected to the main frame 1 of the laminating device and located upstream of the PET sheet conveying direction. A slider 45 is slidably connected inside the second slide rail 44, and a cleaning roller 46 is fixedly connected to the slider 45. The inner wall of the first slide rail 41 is coated with long-lasting lubricating grease to ensure smooth movement of the sliding components and prevent jamming. The sliding plate 42 is an anodized aluminum alloy sliding plate. The fiber wiping cloth 43 is made of ultra-fine polyester fiber with a thickness of 2-3 mm. Its surface is treated with anti-static agents, giving it excellent dust absorption and wear resistance, allowing for fine wiping of the PET sheet surface. The second slide rail 44 is located upstream of the PET sheet conveying direction, forming a graded cleaning layout with the first slide rail 41, which first removes large particles of impurities through coarse cleaning and then removes fine dust through fine wiping, greatly improving cleaning efficiency and cleanliness.

[0018] The adjustment assembly 5 includes a telescopic rod 51 fixedly connected to the inner wall of the second slide rail 44 away from the conveyor belt 3, the other end of the telescopic rod 51 being fixedly connected to the slider 45, and a spring 52 provided on the outer side of the telescopic rod 51, one end of the spring 52 being fixedly connected to the inner wall of the second slide rail 44, and the other end of the spring 52 being fixedly connected to the slider 45; it also includes an electric push rod 53, the output end of which is fixedly connected to the side of the sliding plate 42 away from the conveyor belt 3.

[0019] The telescopic rod 51 is a stainless steel telescopic rod welded to the inner wall of the second slide rail 44. The telescopic rod 51 has a telescopic stroke of 10-20mm. The surface of the rod is passivated for corrosion protection, making it suitable for processing environments with high humidity or dust. The spring 52 is a cylindrical helical compression spring made of piano wire. One end of the spring 52 is welded to the inner wall of the second slide rail 44, and the other end is welded to the slider 45, forming an elastic buffer structure. When the PET sheet exhibits thickness fluctuations or surface protrusions, the spring 52 can automatically retract the cleaning roller 46 to avoid scratching the sheet surface. At the same time, the elastic force of the spring 52 ensures that the cleaning roller 46 remains in close contact with the PET sheet surface, ensuring cleaning efficiency. The electric push rod 53 has a pushing stroke of 20-30mm, and the pushing force can be precisely set by the controller. It can flexibly adjust the contact pressure of the fiber wiping cloth 43 according to the material and cleanliness requirements of the PET sheet, realizing digital control of cleaning intensity.

[0020] The cleaning component 4 is covered with a dust collection hood 6, and a dust collection pipe 7 is fixedly connected to the dust collection hood 6. The other end of the dust collection pipe 7 is fixedly connected to a dust collection box 8.

[0021] The dust collection hood 6 is made of transparent anti-static PC material. The dust collection hood 6 is detachably connected to the main frame 1 of the film coating device by buckles, which is convenient for later disassembly and cleaning. The distance between the bottom of the hood and the surface of the PET sheet is controlled to ensure the dust capture range and avoid friction with the sheet. A negative pressure fan can be connected in series on the dust collection pipe 7, and the other end is fixedly connected to a sealed dust collection box 8 through a quick connector. The dust and other dust swept by the cleaning component 4 can be collected in the dust collection box 8 through the dust collection hood 6, which can effectively prevent the dust or particles after cleaning from re-adhering to the sheet. At the same time, the design of the dust collection box 8 also makes it easy to empty the dust in a centralized manner to avoid repeated dust cleaning.

[0022] The fiber wiping cloth 43 is detachably connected to the sliding plate 42 via Velcro. The Velcro design greatly improves the peel strength after the two are bonded together. This design also allows for tool-free disassembly and replacement. A single person can complete the disassembly and replacement of the cleaning cloth within 30 seconds, which greatly shortens maintenance downtime and improves production efficiency.

[0023] The cleaning roller 46 is made of anti-static nylon material, which can effectively clean particulate impurities on the surface of PET sheets and avoid static electricity caused by friction, thus effectively extending the service life of the cleaning roller 46.

[0024] In overall operation, the PET sheet is continuously conveyed on the conveyor belt 3. The sheet first passes through the cleaning component 4 upstream of the laminating roller 2 along the conveying path. Initially, a rough cleaning is performed by the cleaning roller 46 upstream of the PET sheet conveying direction. The contact pressure is adaptively adjusted by the elastic structure composed of spring 52 and telescopic rod 51 to remove large particles of impurities from the sheet surface. Subsequently, the sheet enters the downstream area of ​​the ultra-fine polyester fiber wiping cloth 43 for fine cleaning. The contact pressure of the wiping cloth is adjusted by a push rod to wipe away residual fine dust and lint. Throughout the cleaning process, a transparent anti-static dust collection hood 6, in conjunction with a negative pressure fan, immediately sucks in dust and collects it in the dust collection box 8 to prevent secondary pollution. Finally, the cleaned PET sheet continues to be conveyed to complete the laminating operation. The entire process, through the coordinated adaptation of various components to different sheet specifications, balances cleaning effectiveness, sheet protection, and laminating quality, effectively reducing problems such as laminating bubbles and loose adhesion.

[0025] Example 2 In this second embodiment, the other structures remain unchanged. The difference from the first embodiment is that the outer periphery of the sweeping roller 46 is detachably fitted with a sweeping brush sleeve 9. The detachable design of the sweeping brush sleeve 9 makes it easy to replace the brush sleeve separately after daily wear, without having to replace the entire sweeping roller 46, thus reducing maintenance costs. It also allows for the replacement of sweeping brush sleeves 9 of different specifications to adapt to the cleaning needs of different specifications and models of sheets.

[0026] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0027] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A laminating apparatus for processing PET sheets, comprising: The main frame of the laminating device is characterized in that: a laminating roller is fixedly connected to the main frame of the laminating device, a conveyor belt is provided on the main frame of the laminating device, a cleaning component is provided on the side of the main frame of the laminating device away from the laminating roller, the cleaning component cleans the surface of the PET sheet to be laminated, and an adjustment component is provided inside the cleaning component, the adjustment component adaptively adjusts the components inside the cleaning component. The cleaning component includes a first slide rail fixedly connected to the main frame of the film covering device, a sliding plate slidably connected inside the first slide rail, and a fiber wiping cloth provided on the side of the sliding plate near the conveyor belt; It also includes a second slide rail, which is fixedly connected to the main frame of the coating device and located upstream of the PET sheet conveying direction. A slider is slidably connected inside the second slide rail, and a cleaning roller is fixedly connected to the slider. The adjustment assembly includes a telescopic rod fixedly connected to the inner wall of the second slide rail away from the conveyor belt, the other end of the telescopic rod being fixedly connected to a slider, and a spring provided on the outside of the telescopic rod, one end of the spring being fixedly connected to the inner wall of the second slide rail, and the other end of the spring being fixedly connected to the slider. It also includes an electric push rod, the output end of which is fixedly connected to the side of the sliding plate away from the conveyor belt.

2. The coating apparatus for PET sheet processing according to claim 1, characterized in that: The cleaning component is covered with a dust collection hood, and a dust collection pipe is fixedly connected to the dust collection hood. The other end of the dust collection pipe is fixedly connected to a dust collection box.

3. The coating apparatus for PET sheet processing according to claim 1, characterized in that: The fiber cloth is detachably connected to the sliding plate via Velcro.

4. The coating apparatus for PET sheet processing according to claim 1, characterized in that: The cleaning roller is made of anti-static nylon.

5. The coating apparatus for PET sheet processing according to claim 1, characterized in that: The outer periphery of the sweeping roller is detachably fitted with a sweeping brush sleeve.

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