Coating and molding device for friction-resistant self-heating composite packaging material

Abstract

The utility model relates to related technical field of coating forming, disclose a kind of coating forming device of friction-resistant self-heating composite package material, including the pull support rod assembly of bottom plate assembly upper installation, the coating device is equipped on the front side of the pull support rod assembly, rear side is equipped with winding machine component, and the pull support rod assembly is equipped with scraping module on the side close to coating device;The winding machine component, pull support rod assembly and scraping module one side are equipped with driving assembly, the driving assembly is driven winding machine component and pull support rod assembly rotation when operating, the winding machine component is rolled up composite package material by rotating, the pull support rod assembly auxiliary transmission composite package material;Through the integration coating, transmission, scraping, winding component of bottom plate component, package material transmission path is short and orderly, cooperate the up and down clamping structure of pull support rod assembly, effectively avoid package material wrinkle, deviation, guarantee coating uniformity.

Description

Technical Field

[0001] This utility model belongs to the field of coating and molding technology, and more specifically, it relates to a coating and molding device for a friction-resistant self-heating composite packaging material. Background Technology

[0002] As a functional material that combines abrasion resistance and active heating, abrasion-resistant self-heating composite packaging materials have been widely used in outdoor clothing, medical care, and industrial insulation in recent years. Their core performance relies on the uniform application of surface functional coatings (such as heating pastes and abrasion-resistant resins). The consistency of coating thickness directly affects the stability of self-heating efficiency, while the bonding strength between the coating and the substrate determines the abrasion resistance lifespan of the packaging material. Therefore, stringent requirements are placed on the precision and stability of coating and molding equipment. There are significant shortcomings in the specialized design of abrasion-resistant self-heating composite packaging materials, mainly due to the following technical defects: The components are scattered, resulting in poor transmission stability: Existing equipment often has independently installed components for coating, transmission, and winding, lacking an integrated framework. This leads to long and winding transport paths for the packaging material. During transport, uneven stress can cause wrinkles and lateral shifts in the packaging material, resulting in localized missed coatings and build-up during coating application. This fails to meet the uniformity requirements of friction-resistant self-heating composite packaging materials, leading to fluctuations in self-heating efficiency and decreased wear resistance.

[0003] Therefore, in view of this, we have studied and improved the existing structure and its shortcomings, and provided a coating and forming device for friction-resistant self-heating composite packaging material. Utility Model Content

[0004] This invention provides a coating and molding device for friction-resistant self-heating composite packaging materials, which overcomes the above-mentioned defects in the prior art.

[0005] The purpose and effect of this utility model's coating and molding device for a friction-resistant self-heating composite packaging material are achieved through the following specific technical means: A coating and forming apparatus for a friction-resistant self-heating composite packaging material includes: a base plate assembly; a tension support rod assembly mounted on the top of the base plate assembly; a coating device mounted on the front side and a winding machine assembly mounted on the rear side of the tension support rod assembly; and a scraper assembly mounted on the side of the tension support rod assembly closest to the coating device; and a drive assembly mounted on one side of the winding machine assembly, the tension support rod assembly, and the scraper assembly. When the drive component operates, it drives the winding machine component and the tension support rod component to rotate. The winding machine component rotates to wind up the composite packaging material, and the tension support rod component assists in the transmission of the composite packaging material. The scraping assembly removes excess coating from the composite packaging material on the surface of the tension support rod assembly and allows the coating to flow back into the coating device.

[0006] In a further technical solution, the base plate assembly includes a mounting base plate, with a mounting upright plate fixed on one side and a drive assembly fixed on the other side; a scraping assembly, a tension support rod assembly, and a winding machine assembly are sequentially installed between the drive assembly and the mounting upright plate, and a coating device is fixed on the side near the scraping assembly.

[0007] In a further technical solution, the tension support rod assembly includes a first roller, a third roller mounted to the right of the first roller, a fourth roller mounted to the right of the third roller, and a second roller mounted below the first roller and the third roller; the ends of the first roller, the third roller and the fourth roller are all provided with synchronous gear sets.

[0008] A further technical solution is that the scraper assembly includes two sets of side plates, and an L-shaped mounting bracket with an opening is provided between the two sets of side plates. A support rod is installed below the L-shaped mounting bracket and a scraper sponge is installed on top of it, with the scraper sponge aligned with the opening. An oil bag is connected to the outside of the opening, and a telescopic motor is connected to the ends of the two sets of side plates.

[0009] In a further technical solution, the coating device includes a hopper, with a front support rod installed at the inlet section and a rear support rod installed at the outlet section, an auxiliary support rod installed below the rear support rod, and a pressure rod installed inside the hopper.

[0010] In a further technical solution, a filter screen is installed between the auxiliary support rod and the second roller, and the second roller and the auxiliary support rod are arranged at an angle to the left.

[0011] In a further technical solution, the winding machine assembly includes a roller, the surface of which is provided with a roller limiter, and the other end of the roller receives a winding motor.

[0012] In a further technical solution, the drive assembly contains a drive motor, the output end of the drive motor is engaged with a synchronous gear set, and the winding motor and the drive motor are controlled by a differential gear.

[0013] Compared with the prior art, the present invention has the following beneficial effects: This utility model discloses a coating and forming device for a friction-resistant self-heating composite packaging material. The device integrates coating, transmission, scraping, and winding components through a base plate assembly. The packaging material transmission path is short and orderly. Combined with the "upper and lower clamping" structure of the pull support rod assembly, it effectively avoids packaging material wrinkles and displacement, ensuring coating uniformity.

[0014] This utility model discloses a coating and forming device for a friction-resistant self-heating composite packaging material. The device adjusts the pressure of the scraping sponge by a telescopic motor to adapt to packaging materials of different thicknesses. Excess coating is collected by an oil collection bag, filtered by a filter screen, and then returned to the hopper, reducing waste, lowering production costs, and avoiding environmental pollution.

[0015] This utility model discloses a coating and forming device for a friction-resistant self-heating composite packaging material. The device uses a synchronous gear set to drive the tension support rod assembly to rotate synchronously. The winding motor and the drive motor are controlled by a differential speed machine to ensure that the transmission and winding are synchronized, preventing the packaging material from being stretched, deformed or loosened, and improving the product qualification rate. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall appearance structure of this utility model.

[0017] Figure 2 This is a top view schematic diagram of the overall structure of this utility model.

[0018] Figure 3 This is a schematic diagram of the overall front view of this utility model.

[0019] Figure 4 This is a schematic diagram of the overall side view structure of this utility model.

[0020] Figure 5 This utility model Figure 1 A magnified structural diagram of part A.

[0021] Figure 6 This utility model Figure 4 A magnified structural diagram of part B.

[0022] Figure 7 This is a schematic diagram of the overall appearance and structure of the slurry-coating component in this utility model.

[0023] Figure 8 This is a front view schematic diagram of the overall structure of the slurry-coating component in this utility model.

[0024] Explanation of reference numerals in the attached figures: 1. Driver components; 2. Base plate assembly; 21. Install the upright plate; 22. Install the base plate; 3. Winding machine components; 4. Coating device; 41. Hopper; 42. Front support rod; 43. Lower pressure rod; 44. Rear support rod; 45. Auxiliary support rod; 5. Pull support rod assembly; 51. First roller; 52. Second roller; 53. Third roller; 54. Fourth roller; 6. Scraper assembly; 61. Side plate; 62. Telescopic motor; 63. Support rod; 64. L-shaped mounting bracket; 65. Oil collection bag; 66. Scraper sponge. Detailed Implementation

[0025] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0026] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship 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 do not 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. In addition, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0027] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can be fixed connections, detachable connections, or integral connections; they can be mechanical connections or electrical connections; they can be direct connections or indirect connections through an intermediate medium.

[0028] Furthermore, a fixed connection refers to a connection where parts or components are fixed and there is no relative movement; a transmission connection refers to a connection method that transmits mechanical motion or torque to other working parts through a transmission component; a sliding connection refers to a connection method where two objects are in contact but not fixed, and can slide relative to each other; a rotational connection refers to a connection method where two objects are in contact but not fixed, and can rotate relative to each other. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0029] Example: As attached Figure 1 To be continued Figure 8 As shown: This invention provides a coating and molding device for friction-resistant self-heating composite packaging materials.

[0030] See attached document Figure 1 To be continued Figure 8The system includes: a base plate assembly 2, which serves as the mounting foundation for the entire device. A tension support rod assembly 5 is stably mounted on top of the base plate assembly 2. This layout provides a horizontal and robust support surface for the tension support rod assembly 5, preventing swaying during operation due to an unstable foundation and ensuring the smooth transmission of the composite packaging material. A coating device 4 is installed in front of the tension support rod assembly 5. This frontal arrangement allows the composite packaging material to be coated before entering subsequent transmission stages, reducing the material transmission path and lowering the risk of coating damage during transmission. A winding machine assembly 3 is installed behind the tension support rod assembly 5, which is used to wind the coated packaging material. The process directly enters the winding process, forming a continuous operation line of coating, transmission, and winding, improving overall production efficiency. The pull support rod assembly 5 is equipped with a scraper assembly 6 on the side near the coating device 4. The position near the coating device 4 allows for the immediate scraping of excess coating from the freshly coated packaging material, preventing the coating from being difficult to handle after drying on the packaging material surface and ensuring uniform coating thickness. The winding machine assembly 3, the pull support rod assembly 5, and the scraper assembly 6 are all equipped with a drive assembly 1 on one side. The single-sided centralized drive design reduces synchronization errors when multiple components are driven separately, ensuring consistent operating rhythm of each component and further improving the processing accuracy of the packaging material.

[0031] The drive assembly 1 drives the winding machine assembly 3 and the tension support rod assembly 5 to rotate. The centralized drive avoids speed deviations caused by independent drives of each assembly, preventing the packaging material from being stretched or loosened during transmission. The rotation of the winding machine assembly 3 will wind up the composite packaging material. The winding action is synchronized with the transmission action, which can collect the processed packaging material in real time, reducing surface wrinkles or coating scratches caused by packaging material accumulation. The tension support rod assembly 5 will provide auxiliary transmission for the composite packaging material. Through the coordinated support of multiple rollers, it can increase the contact area between the packaging material and the rollers, disperse the surface tension of the packaging material, avoid excessive local stress on the packaging material and damage, and at the same time ensure that the packaging material is always transmitted along the preset path to prevent deviation.

[0032] The scraper assembly 6 scrapes the excess coating on the surface of the composite packaging material on the tension support rod assembly 5. The scraping action can accurately remove excess coating from the surface of the packaging material, keeping the coating thickness within a preset range and ensuring the performance stability of the friction-resistant self-heating composite packaging material. If the coating is too thick, it will easily lead to a decrease in self-heating efficiency; if it is too thin, it will affect the friction resistance. After scraping, the coating is returned to the coating device 4. The return design can realize the recycling of coating, reduce raw material waste, reduce production costs, and at the same time prevent excess coating from dripping and polluting the equipment or working environment, thus improving the environmental protection and cleanliness of the device.

[0033] Preferably, referring to Figure 2, the base plate assembly 2 includes a mounting base plate 22. The mounting base plate 22 is made of high-strength metal, capable of withstanding the weight of each component and the impact force during operation, thus extending the overall service life of the device. A mounting upright plate 21 is fixedly installed on one side of the mounting base plate 22. The mounting upright plate 21 is perpendicularly fixed to the mounting base plate 22, forming an L-shaped support structure, providing stable mounting points for the ends of each component and preventing axial displacement during component operation. A drive assembly 1 is fixedly installed on the other side of the mounting base plate 22. The mounting upright plate 21 and the drive assembly 1 are respectively installed on both sides. The various functional components can be symmetrically installed between the two, resulting in more balanced force and more stable operation. Between the drive component 1 and the mounting plate 21, the scraper component 6, the tension support rod component 5, and the winding machine component 3 are installed in sequence. The sequential layout allows the packaging material processing flow to proceed in an orderly manner of scraping, transmission, and winding, reducing the turning points in the transmission path and reducing packaging material wear. A coating device 4 is fixedly installed on the side close to the scraper component 6. The close installation allows the coated packaging material to quickly reach the scraper component 6, avoiding the viscosity change caused by the coating being exposed to the air for a long time, and ensuring stable scraping effect.

[0034] Preferably, referring to Figure 6, the tension support rod assembly 5 includes a first roller 51. The surface of the first roller 51 is smoothed to reduce friction with the packaging material and prevent scratches on the surface of the packaging material, thus affecting its abrasion resistance. A third roller 53 is fixedly installed to the right of the first roller 51. The third roller 53 is parallel to the first roller 51 and can further support the packaging material to prevent it from sagging during long-distance transport. A fourth roller 54 is fixedly installed to the right of the third roller 53. The height of the fourth roller 54 is slightly higher than that of the third roller 53, which can adjust the transport angle of the packaging material and allow it to smoothly transition to the winding machine assembly 3. A second roller 52 is fixedly installed below the first roller 51 and the third roller 53. The second roller 52 supports the packaging material from below, forming a transmission structure that clamps the packaging material from above, enhancing the tension of the packaging material and preventing wrinkles during transport. Synchronous gear sets are provided at the ends of the first roller 51, the third roller 53, and the fourth roller 54. The synchronous gear sets ensure that the three rollers rotate at the same speed, preventing the packaging material from being stretched or torn due to speed differences and ensuring transmission accuracy.

[0035] Preferred options are shown in the appendix. Figure 7The scraper assembly 6 includes two sets of side plates 61, symmetrically arranged to secure subsequent components from both sides, ensuring the stability of the scraper structure. An L-shaped mounting bracket 64 is provided between the two sets of side plates 61. The L-shape provides a mounting surface for the scraper sponge 66 and guides excess paint to the receiving bag 65 through an opening, preventing paint from flowing everywhere. The L-shaped mounting bracket 64 has an opening whose size corresponds to the scraper sponge 66, precisely catching the scraped paint and preventing leakage. A support rod 63 is fixedly installed below the L-shaped mounting bracket 64, enhancing its load-bearing capacity and preventing deformation due to long-term pressure from the scraper sponge 66 and paint. A [missing information - likely a device or component] is fixedly installed on the L-shaped mounting bracket 64. The device includes a scraping sponge 66, which is soft and highly absorbent. It effectively removes excess paint without scratching the packaging material surface, while also ensuring a more even distribution of paint. The sponge 66 is aligned with the opening, ensuring that scraped paint flows directly into the receiving bag 65, minimizing paint residue. The receiving bag 65 is fixedly connected to the outside of the opening, temporarily storing excess paint and preventing it from dripping onto equipment or the ground. Telescopic motors 62 are fixedly connected to the ends of the two sets of side plates 61. These motors drive the side plates 61, moving the scraping sponge 66 back and forth. This allows for easy adjustment of the contact pressure between the sponge 66 and the packaging material, adapting to different thicknesses of packaging material and enhancing the device's versatility.

[0036] Preferred options are shown in the appendix. Figure 5 The coating device 4 includes a hopper 41 made of corrosion-resistant material, which can store coatings for a long time without being corroded by the coatings, thus extending its service life. A front support rod 42 is rotatably installed at the inlet section of the hopper 41. The front support rod 42 can guide the packaging material to enter the hopper 41 smoothly, reducing friction between the packaging material and the inlet of the hopper 41 and preventing wear on the edges of the packaging material. A rear support rod 44 is installed at the outlet section of the hopper 41. The rear support rod 44 can support the packaging material that has just been coated, preventing the packaging material from sagging due to the weight of the coating material, which would result in uneven coating thickness. An auxiliary support rod 45 is fixedly installed below the rear support rod 44. The auxiliary support rod 45 can further enhance the support effect of the packaging material, ensuring a smoother transition of the packaging material from the outlet of the hopper 41 to the pull support rod assembly 5. A pressing rod 43 is fixedly installed inside the hopper 41. The pressing rod 43 can press the packaging material into the coating inside the hopper 41, ensuring that the surface of the packaging material can be completely wetted with coating, avoiding missed areas and ensuring coating integrity.

[0037] Preferred options are shown in the appendix. Figure 5 and appendix Figure 7A filter screen is fixedly installed between the auxiliary support rod 45 and the second roller 52. The filter screen can filter impurities in the returned coating and prevent impurities from entering the hopper 41 and affecting the purity of the coating, thereby ensuring the abrasion resistance and self-heating performance of the composite packaging material. The second roller 52 and the auxiliary support rod 45 are arranged in a leftward tilt. The tilted arrangement can use gravity to make the coating flow naturally along the filter screen to the hopper 41 without the need for additional power to drive the return, reducing energy consumption, while ensuring more thorough coating return and reducing residue.

[0038] Preferred options are shown in the appendix. Figure 2 The winding machine assembly 3 includes a roller with an anti-slip surface to enhance friction with the packaging material, prevent slippage during winding, and ensure tight winding. The roller surface is equipped with a roller limiter, which laterally limits the packaging material during winding to prevent deviation and ensure neat edges of the wound material, facilitating subsequent processing or storage. The other end of the roller is fixedly connected to a winding motor, which provides stable power for the winding action and can adjust the speed as needed to adapt to different processing efficiency requirements.

[0039] Preferred options are shown in the appendix. Figure 1 To be continued Figure 2 The drive assembly 1 contains a drive motor, which is a high-precision servo motor that provides a stable and adjustable speed to ensure the operating accuracy of each component. The output end of the drive motor is matched with a synchronous gear set. The matching structure can accurately transmit the power of the drive motor to each roller of the tension support rod assembly 5, ensuring high power transmission efficiency and no slippage. The winding motor and the drive motor are controlled by a differential speed control mechanism. The differential speed control mechanism can adjust the speed difference between the winding motor and the drive motor in real time, so that the winding speed and the transmission speed are always matched. This avoids the packaging material from being stretched, deformed or loosened due to speed mismatch, and further ensures the processing quality of the composite packaging material.

[0040] Specific usage method of this utility model: Fix the entire device to a flat working surface, ensuring that the mounting base plate 22 of the base plate assembly 2 is placed horizontally to avoid the component shifting due to the tilt of the foundation during subsequent operation; then insert the inlet end of the composite packaging material from below the front support rod 42 of the inlet section of the hopper 41 of the coating device 4. The rotation design of the front support rod 42 can reduce the resistance of the packaging material insertion and prevent the edge of the packaging material from being worn. Next, the packaging material is passed under the pressure rod 43 inside the hopper 41. The pressure rod 43 can press the packaging material into the paint inside the hopper 41, ensuring that the surface of the packaging material is completely wetted with paint and avoiding missed coating. Then, the packaging material is passed through the rear support rod 44 above the outlet section of the hopper 41. The rear support rod 44, together with the auxiliary support rod 45 below, supports the packaging material that has just been coated, preventing the packaging material from sagging due to paint adhesion and causing uneven coating thickness. The packaging material is then passed through the bottom of the first roller 51 of the tension support rod assembly 5. The smooth surface of the first roller 51 can reduce friction with the packaging material and avoid scratches. Next, it passes over the top of the second roller 52 below the first roller 51 and the third roller 53. The second roller 52 and the upper roller form an "upper and lower clamping" structure to enhance the tension of the packaging material and prevent transmission wrinkles. The packaging material continues to pass through the bottom of the third roller 53, and then between the third roller 53 and the fourth roller 54. The third roller 53 and the fourth roller 54 maintain the same speed through a synchronous gear set to ensure a smooth transition of the packaging material. Finally, it passes through the surface of the fourth roller 54 and is fixed at the end to the roller of the winding machine assembly 3. The anti-slip treatment on the roller surface can prevent the packaging material from slipping when winding. At the same time, the roller limiter provides lateral restriction of the packaging material to ensure neat winding.

[0041] After the fabric is threaded through, start the device to perform the coating and forming operation: First, start the winding motor and drive motor in drive component 1. The speed of the winding motor and drive motor is controlled by the differential speed machine. The speed difference between the two can be adjusted in real time according to the tension of the packaging material to avoid stretching or loosening of the packaging material. When the drive motor starts, its output end drives the first roller 51, the third roller 53 and the fourth roller 54 of the tension support rod assembly 5 to rotate synchronously through the synchronous gear set. The synchronous gear set ensures that the three rollers rotate at the same speed to prevent the packaging material from tearing due to the difference in speed. When each roller of the tension support rod assembly 5 rotates, the rollers of the winding machine assembly 3 start winding synchronously under the drive of the winding motor. Through the coordinated transmission between the rollers and the tension support rod assembly 5, the composite packaging material is driven to move continuously. During the movement of the packaging material, it passes through the hopper 41 of the coating device 4 and completes the coating, with excess coating adhering to the surface of the packaging material; at this time, the telescopic motor 62 of the scraper assembly 6 is started, and the side plate 61 is adjusted according to the thickness of the packaging material to drive the L-shaped mounting frame 64 to form appropriate pressure between the scraper sponge 66 on the mounting frame and the surface of the packaging material. The oil-scraping sponge 66 is made of soft, absorbent material. When it comes into contact with and is squeezed against the packaging material, it can efficiently absorb excess paint on the surface without scratching the packaging material. At the same time, it makes the coating distribution more uniform and ensures the stability of the composite packaging material's abrasion resistance and self-heating performance. As the operation continues, the scraper sponge 66 gradually becomes saturated with the paint. The saturated paint drips from the scraper sponge 66 and flows into the oil collection bag 65 on the outside through the opening on the L-shaped mounting bracket 64 that is aligned with the sponge. The oil collection bag 65 temporarily stores the paint to prevent it from dripping and contaminating the equipment. The paint collected by the oil collection bag 65 then drips from the bag opening and falls onto the filter screen bag fixed between the auxiliary support rod 45 and the second roller 52. The filter screen bag filters out impurities in the paint and prevents impurities from re-entering the hopper 41 and affecting the purity of the coating. Since the second roller 52 and the auxiliary support rod 45 are arranged to the left, the filtered coating rolls naturally along the filter screen under the action of gravity and eventually flows back into the hopper 41 of the coating device 4 for recycling, reducing coating waste, lowering production costs, and achieving environmentally friendly operation of the device.

[0042] The embodiments of this utility model are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the utility model to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical applications of this utility model, and to enable those skilled in the art to understand this utility model and design various embodiments with various modifications suitable for a particular purpose.

Claims

1. A coating and molding apparatus for a friction-resistant self-heating composite packaging material, characterized in that: Includes a base plate assembly (2), a tension support rod assembly (5) is installed on the top of the base plate assembly (2), a coating device (4) is installed on the front side of the tension support rod assembly (5), a winding machine assembly (3) is installed on the rear side, and a scraping assembly (6) is installed on the side of the tension support rod assembly (5) near the coating device (4). The winding machine assembly (3), the tension support rod assembly (5) and the scraper assembly (6) are equipped with a drive assembly (1) on one side. When the drive assembly (1) operates, it drives the winding machine assembly (3) and the tension support rod assembly (5) to rotate. The winding machine assembly (3) rotates to wind up the composite packaging material, and the tension support rod assembly (5) assists in driving the composite packaging material. The scraper assembly (6) scrapes off excess coating from the composite packaging material on the surface of the tension support rod assembly (5) and causes the coating to flow back into the coating device (4).

2. The coating and molding apparatus for a friction-resistant self-heating composite packaging material according to claim 1, characterized in that: The base plate assembly (2) includes a mounting base plate (22), on one side of the mounting base plate (22) a mounting plate (21) is fixed and on the other side a drive assembly (1) is fixed; between the drive assembly (1) and the mounting plate (21) a scraper assembly (6), a tension support rod assembly (5) and a winding machine assembly (3) are installed in sequence, and a coating device (4) is fixed on the side close to the scraper assembly (6).

3. The coating and molding apparatus for a friction-resistant self-heating composite packaging material according to claim 2, characterized in that: The tension support rod assembly (5) includes a first roller (51), a third roller (53) is mounted to the right of the first roller (51), a fourth roller (54) is mounted to the right of the third roller (53), and a second roller (52) is mounted below the first roller (51) and the third roller (53); the ends of the first roller (51), the third roller (53) and the fourth roller (54) are all provided with synchronous gear sets.

4. The coating and molding apparatus for a friction-resistant self-heating composite packaging material according to claim 3, characterized in that: The scraper assembly (6) includes two sets of side plates (61), and an L-shaped mounting bracket (64) with an opening is provided between the two sets of side plates (61). The L-shaped mounting bracket (64) is equipped with a support rod (63) below and an oil scraping sponge (66) on top, and the oil scraping sponge (66) is aligned with the opening. An oil collection bag (65) is provided on the outside of the opening, and a telescopic motor (62) is connected to the ends of the two sets of side plates (61).

5. The coating and molding apparatus for a friction-resistant self-heating composite packaging material according to claim 4, characterized in that: The coating device (4) includes a hopper (41), with a front support rod (42) installed at the inlet section and a rear support rod (44) installed at the outlet section. An auxiliary support rod (45) is installed below the rear support rod (44), and a pressure rod (43) is installed inside the hopper (41).

6. The coating and molding apparatus for a friction-resistant self-heating composite packaging material according to claim 5, characterized in that: A filter screen is installed between the auxiliary support rod (45) and the second roller (52), and the second roller (52) and the auxiliary support rod (45) are arranged to the left.

7. The coating and molding apparatus for a friction-resistant self-heating composite packaging material according to claim 6, characterized in that: The winding machine assembly (3) includes a roller with a roller limiter on its surface and a winding motor at the other end of the roller.

8. The coating and molding apparatus for a friction-resistant self-heating composite packaging material according to claim 7, characterized in that: The drive assembly (1) contains a drive motor, the output end of which is engaged with a synchronous gear set, and the winding motor and the drive motor are controlled by a differential gear.

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