Uniform coating device for release pyrography film
By designing adjustment components for the scraper assembly and the pressing assembly, the problem of insufficient control over the thickness and uniformity of high-viscosity coatings in coating equipment was solved, thereby improving the uniformity and controllability of release heat transfer film coating.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HUIZHOU NORMAN NEW MATERIALS CO LTD
- Filing Date
- 2025-04-07
- Publication Date
- 2026-05-05
AI Technical Summary
Existing coating equipment has poor control over the coating thickness and uniformity of high-viscosity coatings, resulting in uneven coating of release heat transfer film.
A uniform coating device for release heat transfer film was designed, including a doctor blade assembly, a pressing assembly, and a cooling roller. By adjusting the angle and position of the doctor blade through the adjusting assembly, and combining the pressing and cooling processes, the coating thickness and uniformity can be controlled.
It effectively improves the uniformity and controllability of release heat transfer film coating, ensuring the uniformity of the coating and the curing effect.
Smart Images
Figure CN224195095U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of coating device technology, and in particular to a uniform coating device for release heat transfer film. Background Technology
[0002] Heat transfer film itself needs to have a multi-layered functional structure (such as release layer, pattern layer, adhesive layer, etc.). Each layer needs to be precisely coated and laminated to achieve high-precision pattern transfer, weather resistance, and adhesion during the heat transfer process. Coating equipment is the main equipment for achieving the lamination of each layer of heat transfer film. Existing coating equipment generally includes an unwinding system, a pretreatment system, a coating unit, a drying system, a cooling system, and a rewinding system. Among these, the coating unit is the core component that determines the uniformity of the heat transfer film coating. The coating unit generally consists of a coating head and a feeding system. The coating head can be classified into roller coating, blade coating, and slot extrusion coating, depending on the coating method. The feeding system generally consists of a storage tank, a pump, and a filter to ensure stable delivery of the coating material.
[0003] For high-viscosity coatings such as adhesives, the coating process is generally carried out by doctor blade coating. However, the existing coating equipment has insufficient means to adjust the doctor blade coating, resulting in poor control of coating thickness and uniformity. Utility Model Content
[0004] Therefore, it is necessary to provide a uniform coating device for release heat transfer film to address the technical problem of insufficient coating uniformity in existing coating equipment.
[0005] A uniform coating device for release heat transfer film includes a frame, a first unwinding roller, a second unwinding roller, a coating mechanism, and a take-up roller. The first unwinding roller, the second unwinding roller, the take-up roller, and the coating mechanism are all disposed on the frame. The first unwinding roller and the second unwinding roller are disposed at both ends of the frame, the take-up roller is disposed at the bottom of one end of the frame, and the coating mechanism is disposed between the first unwinding roller and the second unwinding roller.
[0006] The coating mechanism includes a doctor blade assembly, a pressing assembly, and a cooling roller, which are arranged in sequence. The doctor blade assembly faces the first unwinding roller, the pressing assembly faces the second unwinding roller, and the cooling roller is located on the bottom side of the pressing assembly and faces the take-up roller.
[0007] The doctor blade assembly includes a coating roller, a doctor blade, and an adjusting component. The coating roller is rotatably mounted on the frame. The doctor blade is correspondingly mounted on the adjacent side of the coating roller, and the output end of the doctor blade abuts against the side surface of the coating roller. One end of the adjusting component is movably connected to the frame, and the other end of the adjusting component is connected to the doctor blade.
[0008] In one embodiment, the adjustment assembly includes a first swing arm, a rotating shaft, and a first cylinder. The first cylinder is disposed on the bottom side of the scraper and mounted on the frame. The first swing arm is rotatably connected to the frame via the rotating shaft. The first swing arm is disposed between the first cylinder and the scraper, with one end of the first swing arm connected to the output end of the first cylinder and the other end of the first swing arm connected to the scraper.
[0009] In one embodiment, the aforementioned first cylinder is configured as two cylinders; the two first cylinders are respectively arranged in parallel on both sides of the frame.
[0010] In one embodiment, the aforementioned first swing arm is configured as two; the two first swing arms are rotatably connected to both sides of the frame via rotating shafts, and the two first swing arms are respectively connected to the two first cylinders and the two ends of the scraper.
[0011] In one embodiment, each of the first swing arms is provided with an adjusting plate, an adjusting screw, and a limiting guide rod. The adjusting plate is rotatably connected to the side surface of the first swing arm facing the scraper, and the first swing arm is connected to the scraper through the adjusting plate. The adjusting screw is connected to the side edge of the adjusting plate through an end plate, the adjusting screw is threadedly engaged with the end plate, and the end of the adjusting screw abuts against the side edge of the first swing arm. The limiting guide rod passes through the end plate and is connected to the side edge of the first swing arm, and the end of the limiting guide rod is rotatably connected to the side edge of the first swing arm.
[0012] In one embodiment, the end of the limiting guide rod connected to the first swing arm is configured as a cylindrical connecting block, thereby realizing the rotational connection between the limiting guide rod and the edge of the first swing arm.
[0013] In one embodiment, the pressing assembly includes a first pressure roller, a second pressure roller, two slide blocks, and two second cylinders. The first pressure roller and the second pressure roller are arranged parallel to each other on the frame, wherein the two ends of the second pressure roller are slidably connected to the frame via the slide blocks; the two second cylinders are mounted on the frame, and the output ends of the second cylinders are connected to the two ends of the second pressure roller.
[0014] In one embodiment, the above-described release heat transfer film uniform coating apparatus further includes a locking component disposed on the adjacent side of the take-up roller.
[0015] In one embodiment, the locking assembly includes a first locking roller, a second locking roller, a second swing arm, and a third cylinder; the first locking roller and the second locking roller are arranged parallel to each other inside the frame, and the first locking roller is rotatably connected to the frame; one end of the second swing arm is rotatably connected to the frame, and the other end is connected to the end of the second locking roller; the third cylinder is mounted on the frame, and the output end of the third cylinder drives the second swing arm.
[0016] In one embodiment, the aforementioned second swing arm is provided in two configurations.
[0017] In one embodiment, the aforementioned third cylinder is configured as two cylinders, and the two third cylinders and two swing arms work together to drive the two ends of the second locking roller.
[0018] The aforementioned release heat transfer film uniform coating device simultaneously unwinds the film using a first unwind roller and a second unwind roller. After coating and layering by the coating mechanism, the film is conveyed to a take-up roller for winding, thereby achieving coating processing between the various layers of the release heat transfer film. The film material output from the first unwind roller is conveyed to the doctor blade assembly for coating, and then conveyed towards the pressing assembly. The other film material output from the second unwind roller is conveyed to the pressing assembly to press the coated film material together, and then conveyed towards the cooling roller to cool the coating and accelerate its curing. Finally, the pressed heat transfer film is conveyed to the take-up roller for winding. The doctor blade assembly includes a coating roller, a doctor blade, and an adjusting component. The coating roller is rotatably mounted on the frame. The doctor blade is positioned adjacent to the coating roller, with its output end abutting against the side surface of the coating roller. One end of the adjusting component is movably connected to the frame, and the other end is connected to the doctor blade. Thus, the doctor blade can adjust its position and angle relative to the frame through the adjusting component, thereby controlling the amount of coating applied to the film material by the doctor blade and the coating roller, effectively improving the uniformity and controllability of the release heat transfer film coating process. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the structure of a uniform coating device for release heat transfer film in one embodiment;
[0020] Figure 2 This is an exploded structural diagram of a release heat transfer film uniform coating device in one embodiment;
[0021] Figure 3 for Figure 2 An enlarged structural diagram of part M in the illustrated embodiment. Detailed Implementation
[0022] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.
[0023] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.
[0024] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.
[0025] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0026] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.
[0027] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.
[0028] Please see Figures 1 to 3 This utility model discloses a uniform coating device for release heat transfer film. The uniform coating device includes a frame 100, a first unwinding roller 200, a second unwinding roller 300, a coating mechanism, and a take-up roller 400. The first unwinding roller 200, the second unwinding roller 300, the take-up roller 400, and the coating mechanism are all disposed on the frame 100. The first unwinding roller 200 and the second unwinding roller 300 are disposed at both ends of the frame 100, and the take-up roller 400 is disposed at the bottom of one end of the frame 100. The coating mechanism is disposed between the first unwinding roller 200 and the second unwinding roller 300. Thus, the raw material roll of release heat transfer film can be installed onto the first unwinding roller 200 and the second unwinding roller 300 and unwound simultaneously. After being coated and stacked by the coating mechanism, it is conveyed to the take-up roller 400 to complete the winding, thereby realizing the coating processing between the various layers of the release heat transfer film. Specifically, the coating mechanism includes a doctor blade assembly 500, a pressing assembly 600, and a cooling roller 700. The doctor blade assembly 500, the pressing assembly 600, and the cooling roller 700 are arranged in sequence. The doctor blade assembly 500 is positioned towards the first unwinding roller 200, the pressing assembly 600 is positioned towards the second unwinding roller 300, and the cooling roller 700 is positioned on the bottom side of the pressing assembly 600 and towards the take-up roller 400. Based on this, the film material output from the first unwinding roller 200 is conveyed to the doctor blade assembly 500 for coating, and then conveyed towards the pressing assembly 600. Another film material output from the second unwinding roller 300 is conveyed to the pressing assembly 600 to press the coated film material together, and then conveyed towards the cooling roller 700 to cool the coating and accelerate its curing. Finally, the pressed heat transfer film is conveyed to the take-up roller 400 for winding. More specifically, the doctor blade assembly 500 includes a coating roller 510, a doctor blade 520, and an adjustment assembly. The coating roller 510 is rotatably mounted on the frame 100. The doctor blade 520 is correspondingly mounted on the adjacent side of the coating roller 510, and the output end of the doctor blade 520 abuts against the side surface of the coating roller 510. One end of the adjustment assembly is movably connected to the frame 100, and the other end of the adjustment assembly is connected to the doctor blade 520. Thus, the doctor blade 520 can adjust its position and angle relative to the frame 100 through the adjustment assembly, thereby controlling the amount of coating material applied to the film material by the coating roller 510, effectively improving the uniformity and controllability of the release heat transfer film coating process.
[0029] Furthermore, the adjustment assembly includes a first swing arm 530, a rotating shaft 540, and a first cylinder 550. The first cylinder 550 is disposed on the bottom side of the scraper 520 and mounted on the frame 100. The first swing arm 530 is rotatably connected to the frame 100 via the rotating shaft 540. The first swing arm 530 is disposed between the first cylinder 550 and the scraper 520. One end of the first swing arm 530 is connected to the output end of the first cylinder 550, and the other end of the first swing arm 530 is connected to the scraper 520. Thus, by pushing the first swing arm 530 to swing through the first cylinder 550, the setting angle and setting position of the scraper 520 can be adjusted within a certain range to adjust the engagement angle and engagement tightness between the scraper 520 and the coating roller 510, thereby controlling the coating thickness and uniformity. In one embodiment, two first cylinders 550 are provided, and correspondingly, two first swing arms 530 are provided; the two first cylinders 550 are respectively arranged in parallel on both sides of the frame 100; the two first swing arms 530 are respectively rotatably connected to both sides of the frame 100 through rotating shafts 540, and the two first swing arms 530 are respectively connected to the two first cylinders 550 and the two ends of the scraper 520, thereby improving the stability of the adjustment component in the adjustment process of the scraper 520.
[0030] Furthermore, each first swing arm 530 is provided with an adjusting plate 531, an adjusting screw 532, and a limiting guide rod 533. The adjusting plate 531 is rotatably connected to the side surface of the first swing arm 530 facing the scraper 520, and the first swing arm 530 is connected to the scraper 520 through the adjusting plate 531. The adjusting screw 532 is connected to the side edge of the adjusting plate 531 through an end plate 534. The adjusting screw 532 is threadedly engaged with the end plate 534, and the end of the adjusting screw 532 abuts against the side edge of the first swing arm 530, thereby allowing rotation... The adjusting screw 532 causes the adjusting plate 531 to swing relative to the first swing arm 530, thereby adjusting the angle of the scraper 520 relative to the first swing arm 530. The limiting guide rod 533 passes through the end plate 534 and connects to the side edge of the first swing arm 530. The end of the limiting guide rod 533 is rotatably connected to the side edge of the first swing arm 530. Thus, when the adjusting plate 531 swings relative to the first swing arm 530, the limiting guide rod 533 moves in coordination with the adjusting plate 531 through the end plate 534, thereby ensuring the stability of the swing of the adjusting plate 531. In one embodiment, the end of the limiting guide rod 533 connected to the first swing arm 530 is set as a cylindrical connecting block, thereby realizing the rotatable connection between the limiting guide rod 533 and the edge of the first swing arm 530.
[0031] Furthermore, the pressing assembly 600 includes a first pressure roller 610, a second pressure roller 620, two slide blocks 630, and two second cylinders 640. The first pressure roller 610 and the second pressure roller 620 are arranged parallel to each other on the frame 100. Both ends of the second pressure roller 620 are slidably connected to the frame 100 via the slide blocks 630. The two second cylinders 640 are mounted on the frame 100, and their output ends are connected to both ends of the second pressure roller 620. Thus, the two second cylinders 640 can drive the second pressure roller 620 to reciprocate along the two slide blocks 630, thereby achieving mutual pressing and separation between the first pressure roller 610 and the second pressure roller 620. The film material output from the coating mechanism and the film material output from the second unwinding roller 300 are pressed together between the first pressure roller 610 and the second pressure roller 620.
[0032] Furthermore, the release heat transfer film uniform coating device also includes a locking component 800. The locking component 800 is located on the adjacent side of the take-up roller 400. After cooling, the heat transfer film is conveyed to the take-up roller 400 for winding via the locking component 800. The locking component 800 can lock the heat transfer film during the conveying process according to the actual production situation, so that the staff can deal with emergencies in a timely manner. Specifically, the locking assembly 800 includes a first locking roller 810, a second locking roller 820, a second swing arm 830, and a third cylinder 840. The first locking roller 810 and the second locking roller 820 are arranged parallel to each other inside the frame 100, and the first locking roller 810 is rotatably connected to the frame 100. One end of the second swing arm 830 is rotatably connected to the frame 100, and the other end is connected to the end of the second locking roller 820. The third cylinder 840 is installed on the frame 100, and the output end of the third cylinder 840 drives the second swing arm 830. Thus, the third cylinder 840 can drive the second locking roller 820 to abut against and lock relative to the first locking roller 810 and release the lock through the second swing arm 830, thereby realizing the locking function of the locking assembly 800 on the heat transfer film. Based on the above configuration, in one embodiment, two second swing arms 830 are configured, and correspondingly, two third cylinders 840 are configured. The two third cylinders 840 and the two swing arms work together to drive the two ends of the second locking roller 820, thereby achieving stable driving of the second locking roller 820.
[0033] In summary, the uniform coating device for release heat transfer film of this invention simultaneously unwinds the film using a first unwind roller and a second unwind roller. After coating and stacking by the coating mechanism, the film is conveyed to a take-up roller for winding, thereby achieving coating processing between the various layers of the release heat transfer film. The film material output from the first unwind roller is conveyed to the doctor blade assembly for coating, and then conveyed towards the pressing assembly. The other film material output from the second unwind roller is conveyed to the pressing assembly to press the coated film material together, and then conveyed towards the cooling roller to cool the coating and accelerate its curing. Finally, the pressed heat transfer film is conveyed to the take-up roller for winding. The doctor blade assembly includes a coating roller, a doctor blade, and an adjusting component. The coating roller is rotatably mounted on the frame. The doctor blade is positioned adjacent to the coating roller, with its output end abutting against the side surface of the coating roller. One end of the adjusting component is movably connected to the frame, and the other end is connected to the doctor blade. Thus, the doctor blade can adjust its position and angle relative to the frame through the adjusting component, thereby controlling the amount of coating applied to the film material by the doctor blade and the coating roller, effectively improving the uniformity and controllability of the release heat transfer film coating process.
[0034] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.
[0035] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.
Claims
1. A device for uniformly coating release heat transfer film, characterized in that, include: The frame, the first unwinding roll, the second unwinding roll, the coating mechanism, and the take-up roll are all mounted on the frame. The first unwinding roll and the second unwinding roll are mounted at both ends of the frame, the take-up roll is mounted at the bottom of one end of the frame, and the coating mechanism is mounted between the first unwinding roll and the second unwinding roll. The coating mechanism includes a doctor blade assembly, a pressing assembly, and a cooling roller, which are arranged in sequence. The doctor blade assembly faces the first unwinding roller, the pressing assembly faces the second unwinding roller, and the cooling roller is located on the bottom side of the pressing assembly and faces the take-up roller. The doctor blade assembly includes a coating roller, a doctor blade, and an adjusting component. The coating roller is rotatably mounted on the frame. The doctor blade is correspondingly mounted on the adjacent side of the coating roller, and the output end of the doctor blade abuts against the side surface of the coating roller. One end of the adjusting component is movably connected to the frame, and the other end of the adjusting component is connected to the doctor blade.
2. The uniform coating device for release heat transfer film according to claim 1, characterized in that, The adjustment assembly includes a first swing arm, a rotating shaft, and a first cylinder. The first cylinder is located on the bottom side of the scraper and is mounted on the frame. The first swing arm is rotatably connected to the frame via the rotating shaft. The first swing arm is located between the first cylinder and the scraper. One end of the first swing arm is connected to the output end of the first cylinder, and the other end of the first swing arm is connected to the scraper.
3. The uniform coating device for release heat transfer film according to claim 2, characterized in that, The first cylinder is configured as two cylinders; the two first cylinders are respectively arranged in parallel on both sides of the frame.
4. The uniform coating device for release heat transfer film according to claim 3, characterized in that, The first swing arm is configured as two; the two first swing arms are rotatably connected to both sides of the frame via rotating shafts, and the two first swing arms are respectively connected to the two first cylinders and the two ends of the scraper.
5. The uniform coating device for release heat transfer film according to claim 4, characterized in that, Each first swing arm is provided with an adjusting plate, an adjusting screw, and a limiting guide rod. The adjusting plate is rotatably connected to the side surface of the first swing arm facing the scraper, and the first swing arm is connected to the scraper through the adjusting plate. The adjusting screw is connected to the side edge of the adjusting plate through an end plate. The adjusting screw is threadedly engaged with the end plate, and the end of the adjusting screw abuts against the side edge of the first swing arm. The limiting guide rod passes through the end plate and is connected to the side edge of the first swing arm, and the end of the limiting guide rod is rotatably connected to the side edge of the first swing arm.
6. The uniform coating device for release heat transfer film according to claim 5, characterized in that, One end of the limiting guide rod connected to the first swing arm is set as a cylindrical connecting block, thereby realizing the rotational connection between the limiting guide rod and the edge of the first swing arm.
7. The uniform coating device for release heat transfer film according to claim 6, characterized in that, The pressing assembly includes a first pressure roller, a second pressure roller, two slide blocks, and two second cylinders. The first pressure roller and the second pressure roller are arranged parallel to each other on the frame. The two ends of the second pressure roller are slidably connected to the frame through the slide blocks. The two second cylinders are mounted on the frame, and the output ends of the second cylinders are connected to the two ends of the second pressure roller.
8. The uniform coating device for release heat transfer film according to claim 7, characterized in that, The release heat transfer film uniform coating device also includes a locking component, which is located on the adjacent side of the take-up roller.
9. The uniform coating device for release heat transfer film according to claim 8, characterized in that, The locking assembly includes a first locking roller, a second locking roller, a second swing arm, and a third cylinder; the first locking roller and the second locking roller are arranged parallel to each other inside the frame, and the first locking roller is rotatably connected to the frame; one end of the second swing arm is rotatably connected to the frame, and the other end is connected to the end of the second locking roller; the third cylinder is mounted on the frame, and the output end of the third cylinder drives the second swing arm.
10. The uniform coating device for release heat transfer film according to claim 9, characterized in that, The second swing arm is configured as two, and the third cylinder is configured as two. The two third cylinders and the two swing arms work together to drive the two ends of the second locking roller.