Film-coated iron take-up and pay-off device

Abstract

This utility model relates to the technical field of coated tinplate production equipment. To address the problem of low energy utilization in the coated tinplate production process, a coated tinplate winding and unwinding device is disclosed. The device includes a frame with a first roller, a second roller, and a third roller arranged in parallel along a horizontal direction on the frame. A fourth roller, parallel to the second roller, is arranged above the space between the first and second rollers. A fifth roller, parallel to the second roller, is arranged above the space between the second and third rollers. A sixth roller and a seventh roller are arranged in parallel along the side of the fifth roller away from the fourth roller. The plane containing the tops of the fifth and sixth rollers is lower than the plane containing the tops of the fourth and seventh rollers. This utility model utilizes the residual heat carried by the high-temperature coated tinplate after coating to continuously transfer heat to the low-temperature metal film that has not yet entered the coating stage, effectively preheating it and reducing the energy input required for heating the metal film in the early stages, thus effectively reducing the overall energy consumption in the production process.

Description

Technical Field

[0001] This utility model relates to the technical field of coated steel production equipment, specifically to a coated steel winding and unwinding device. Background Technology

[0002] Coated iron technology is an advanced, environmentally friendly composite material preparation technology. Its basic process is as follows: a preheated metal film and a pre-printed polymer film are instantaneously hot-pressed under precisely controlled high temperature and high pressure conditions, causing the film to melt and firmly adhere to the metal surface. Finally, after cooling, shaping, cutting, inspection, and packaging, a high-performance composite material is obtained, combining the excellent mechanical strength of metal with the good corrosion resistance and decorative properties of polymer. Compared with traditional coating and solvent-based lamination processes, coated iron production requires no solvents, fundamentally avoiding the emission of volatile organic compounds, making it a clean production technology.

[0003] However, despite the significant environmental advantages of this process, energy consumption issues still exist in existing production processes that require optimization. A prominent issue is that after the metal and polymer films are hot-pressed together, the significantly heated coated iron material needs to enter a cooling stage for shaping. On traditional production lines, this cooling process typically relies on natural air cooling or forced air cooling, causing a large amount of residual heat carried by the coated iron to be directly dissipated into the surrounding environment. This leads to severe energy waste, as the energy invested in heating the metal film is not effectively utilized. This not only increases the overall energy consumption of the production process but also indirectly increases the production cost of the product, which is inconsistent with the concepts of green manufacturing and sustainable development. Utility Model Content

[0004] To address the aforementioned technical deficiencies, this invention provides a coated iron winding and unwinding device that can effectively transfer heat from the coated iron to the metal film during the winding and unwinding process, thereby preheating the metal film.

[0005] This utility model discloses a coated iron winding and unwinding device, including a frame and a drive motor mounted on the frame. A first roller, a second roller, and a third roller are arranged in parallel along the horizontal direction on the frame. The first roller and the third roller are located on both sides of the second roller and have gaps between them. The drive motor is connected to the second roller for transmission. A fourth roller parallel to the second roller is arranged above the space between the first roller and the second roller. A fifth roller parallel to the second roller is arranged above the space between the second roller and the third roller. A sixth roller and a seventh roller are arranged in parallel on the side of the fifth roller away from the fourth roller. The top of the fifth roller and the top of the sixth roller are at the same height. The top of the fourth roller and the top of the seventh roller are at the same height. The plane containing the tops of the fifth roller and the sixth roller is lower than the plane containing the tops of the fourth roller and the seventh roller.

[0006] In the above-described scheme, the uncoated metal film roll is placed on the upper side between the first and second rollers. The second roller drives the metal film roll to rotate. The metal film released from the roll passes over the upper side of the fourth roller and then over the upper side of the seventh roller, before being conveyed to the coating device for coating. In the coating device, the coating iron that has just been coated passes over the lower side of the seventh roller, then over the upper side of the sixth roller, and finally over the upper side of the fifth roller before being wound up between the second and third rollers. During this process, the heat on the coating iron that has just been coated is transferred to the metal film through the seventh roller when it comes into contact with it. Then, the coating iron conveyed between the sixth and fifth rollers comes into close contact with the metal film conveyed between the fourth and seventh rollers. At this time, the air between the coating iron and the metal film flows rapidly during the conveying process of the coating iron and the metal film, thereby enabling rapid heat exchange between the coating iron and the metal film. Finally, the heat on the wound coating iron is transferred to the metal film roll through the second roller. The entire process allows the residual heat on the coating iron to be fully used for preheating the metal film.

[0007] To reduce heat dissipation of the metal film, a heat insulation plate is provided above the plane containing the top of the fourth roller and the top of the seventh roller. The heat insulation plate is parallel to the plane containing the top of the fourth roller and the top of the seventh roller. The heat insulation plate isolates the metal film from the air above, thereby reducing heat dissipation of the metal film.

[0008] To reduce heat dissipation from the metal film, the heat insulation plate is parallel to and 3 mm away from the plane containing the top of the fourth and seventh rollers.

[0009] To improve heat exchange between the coated iron conveyed between the sixth and fifth rollers and the metal film conveyed between the fourth and seventh rollers, the plane containing the tops of the fifth and sixth rollers is 3 mm away from the plane containing the tops of the fourth and seventh rollers.

[0010] The coating iron winding and unwinding device obtained by this utility model has the following advantages: the device utilizes the residual heat carried by the high-temperature coated iron after coating is completed, and transfers the heat to the low-temperature metal film that has not yet entered the coating stage through the contact heat conduction of the seventh roller and the second roller and the close-range air convection heat exchange, so as to effectively preheat it. This significantly reduces the energy input required for heating the metal film in the early stage, effectively reduces the overall energy consumption and production cost in the production process, overcomes the drawbacks of heat energy waste caused by traditional cooling methods, and meets the requirements of green manufacturing and sustainable development. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of this utility model. Detailed Implementation

[0012] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.

[0013] Example 1:

[0014] like Figure 1 As shown, this utility model discloses a coated iron winding and unwinding device, including a frame 1 and a drive motor mounted on the frame 1. A first roller 2, a second roller 4, and a third roller 6 are arranged in parallel along a horizontal direction on the frame 1. The first roller 2 and the third roller 6 are located on opposite sides of the second roller 4, with gaps between them. The drive motor is connected to the second roller 4. A fourth roller 7, parallel to the second roller 4, is arranged above the space between the first roller 2 and the second roller 4. A fifth roller 9, parallel to the second roller 4, is arranged above the space between the second roller 4 and the third roller 6. A sixth roller 10 and a seventh roller 11 are arranged in parallel on the side of the fifth roller 9 away from the fourth roller 7. The top of the fifth roller 9... The top of the sixth roller 10 is at the same height as the top of the fourth roller 7 and the top of the seventh roller 11. The plane containing the top of the fifth roller 9 and the top of the sixth roller 10 is lower than the plane containing the top of the fourth roller 7 and the top of the seventh roller 11. The plane containing the top of the fifth roller 9 and the top of the sixth roller 10 is 3 mm away from the plane containing the top of the fourth roller 7 and the top of the seventh roller 11. A heat insulation plate 8 is provided above the plane containing the top of the fourth roller 7 and the top of the seventh roller 11. The heat insulation plate 8 is parallel to the plane containing the top of the fourth roller 7 and the top of the seventh roller 11 and is 3 mm away from the plane containing the top of the fourth roller 7 and the top of the seventh roller 11.

[0015] In use, the uncoated metal film roll 3 is placed on the upper side between the first roller 2 and the second roller 4. The second roller 4 drives the metal film roll 3 to rotate. The metal film released from the metal film roll 3 passes over the upper side of the fourth roller 7 and then over the upper side of the seventh roller 11, before being conveyed to the coating device for coating. In the coating device, the coating iron 5, after being coated, passes over the lower side of the seventh roller 11, then over the upper side of the sixth roller 10, and finally over the upper side of the fifth roller 9 before being wound up between the second roller 4 and the third roller 6. During this process, the heat on the coating iron 5, which has just been coated, is released into the seventh roller 11. When the rollers 11 come into contact, heat is transferred to the metal film through the seventh roller 11. Then, the coated iron 5 conveyed between the sixth roller 10 and the fifth roller 9 comes into close contact with the metal film conveyed between the fourth roller 7 and the seventh roller 11. At this time, the air between the coated iron 5 and the metal film flows rapidly during the conveying process of the coated iron 5 and the metal film, so that the coated iron 5 and the metal film can exchange heat rapidly. Finally, the heat on the wound coated iron 5 is transferred to the metal film roll 3 through the second roller 4. The whole process makes the residual heat on the coated iron 5 fully used for the preheating of the metal film.

Claims

1. A film-coated iron take-up and pay-off device, characterized in that: The device includes a frame and a drive motor mounted on the frame. A first roller, a second roller, and a third roller are arranged in parallel along a horizontal direction on the frame. The first roller and the third roller are located on opposite sides of the second roller and are separated from it by a gap. The drive motor is connected to the second roller. A fourth roller, parallel to the second roller, is arranged above the space between the first and second rollers. A fifth roller, parallel to the second roller, is arranged above the space between the second and third rollers. A sixth roller and a seventh roller are arranged in parallel on the side of the fifth roller away from the fourth roller. The tops of the fifth roller and the sixth roller are at the same height, as are the tops of the fourth and seventh rollers. The plane containing the tops of the fifth and sixth rollers is lower than the plane containing the tops of the fourth and seventh rollers.

2. The film-coated iron winding and unwinding device according to claim 1, characterized in that: A heat insulation plate is provided above the plane containing the top of the fourth roller and the top of the seventh roller, and the heat insulation plate is parallel to the plane containing the top of the fourth roller and the top of the seventh roller.

3. The film-coated iron winding and unwinding device according to claim 2, characterized in that: The heat insulation plate is parallel to and 3 mm away from the plane containing the top of the fourth roller and the top of the seventh roller.

4. The coil handling device of any one of claims 1 to 3, wherein: The plane containing the tops of the fifth and sixth rollers is 3 millimeters away from the plane containing the tops of the fourth and seventh rollers.

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