Metallic coil composite flexible facing peeling device

Abstract

The utility model relates to the technical field of building material recycling, especially to a metal coiled material composite flexible surface layer stripping device, including conveying mechanism and electromagnetic heating device, the electromagnetic heating device includes induction coil and frequency control system, the conveying mechanism is used for conveying the product to be recycled to pass through the induction coil, the induction coil is suitable for heating the single side or both sides of metal coiled material, and the metal surface layer of one side metal coiled material is heated to the peeling degree through the heat conduction of the flexible surface layer, the frequency control system is used for controlling the current frequency of the induction coil and realizes the control metal coiled material surface layer heating depth. The utility model adopts the product to be recycled through electromagnetic heating device, adjusts the appropriate frequency, and accurately heats the metal coiled material surface that is pasted with the flexible surface layer, and the metal coiled material surface that is heated rapidly will heat conduction heating to the adjacent flexible surface layer near the softening point, reaches the purpose that metal coiled material and nonmetal flexible surface layer are stripped.

Description

Technical Field

[0001] This utility model relates to the technical field of building material recycling, and in particular to a metal coil composite flexible surface layer peeling device. Background Technology

[0002] Currently, products featuring flexible metal coil composites are becoming increasingly widespread; however, a certain amount of defective products are generated during the production process. To save costs and address the need to address the significant storage space occupied by defective products, recycling them is a crucial step. Recycling defective products requires peeling the flexible surface layer from the metal coil to separate the flexible surface layer material from the metal coil for separate recycling.

[0003] Existing stripping devices typically employ conventional physical stripping methods (non-destructive cutting, high-pressure water jetting), which are inefficient. Laser-assisted stripping and chemical stripping methods are too costly and also cause pollution problems, making them suitable only for precision stripping of electronic components and high-value-added recycling products. Therefore, for products with flexible metal coil composite surfaces, the economic value of recycling using conventional methods is extremely low. For these reasons, there is an urgent need to invent a low-cost and high-efficiency stripping device. Utility Model Content

[0004] In view of this, the present invention provides a metal coil composite flexible surface layer peeling device, which aims to solve the problem that existing peeling devices cannot balance cost and efficiency.

[0005] To address the aforementioned problems, this utility model provides a metal coil composite flexible surface layer peeling device, comprising a conveying mechanism and an electromagnetic heating device. The electromagnetic heating device includes an induction coil and a frequency control system. The conveying mechanism is used to convey the product to be recycled through the induction coil. The induction coil is adapted to heat one or both sides of the metal coil, and heats the flexible surface layer to a peelable degree through heat conduction on the metal surface layer on the side to which the flexible surface layer is attached. The frequency control system is used to control the frequency of the current passing through the induction coil to control the surface heating depth of the metal coil.

[0006] Optionally, the product to be recycled is placed on the conveying mechanism with the flexible surface facing down.

[0007] Optionally, it also includes a winding mechanism, which includes a rotating structure and a capturing structure. The capturing structure is used to capture the head of the flexible surface layer after it has been initially peeled off, and the rotating structure is adapted to rotate and wind up the flexible surface layer after the capturing structure has completed capturing.

[0008] Optionally, the capturing structure is a clamping structure, a negative pressure adsorption structure, or a magnetic attraction structure.

[0009] Optionally, the induction coil is detachable and conforms to the product to be recycled in a direction perpendicular to the plate surface.

[0010] Optionally, the induction coil is covered with a wear-resistant layer.

[0011] Optionally, the induction coil may be located only on one side of the conveying mechanism, or arranged around the circumference of the conveying mechanism.

[0012] Optionally, the electromagnetic heating device includes an insulation layer with a through channel for the product to be recycled to pass through, and the induction coil is located in the channel.

[0013] Optionally, the conveying mechanism includes one or more conveying lines, each of which is used to convey a product to be recycled through the induction coil.

[0014] Optionally, it also includes a correction mechanism located before the induction coil in the conveying direction. The product to be recycled is adapted to pass through the correction mechanism and the induction coil in sequence. The correction mechanism is adapted to correct the product to be recycled to a straight or near-straight shape.

[0015] The technical solution of this utility model has the following advantages:

[0016] 1. The product to be recycled is heated by an electromagnetic heating device. The appropriate frequency is adjusted to precisely heat the surface of the metal roll that is bonded to the flexible surface layer. The rapidly heated surface of the metal roll conducts heat to the adjacent flexible surface layer to near its softening point, thereby achieving the purpose of separating the metal roll from the non-metallic flexible surface layer.

[0017] 2. The product to be recycled is passed through an electromagnetic heating device with its flexible surface facing down. The heated flexible surface, which is close to its softening point, is then lowered under the action of gravity, thereby achieving the separation from the metal coil.

[0018] 3. When the product to be recycled is a corrugated plate with multiple protrusions, designing the shape of the induction coil to match the cross-sectional shape of the product to be recycled can make the heating conditions of different parts of the product to be recycled less different, thus tending to uniform heating.

[0019] 4. The induction coil of the electromagnetic heating device is designed to be detachable, which facilitates the replacement of the corresponding induction coil before peeling and processing various shapes of products to be recycled.

[0020] 5. By covering the induction coil with a wear-resistant layer, the product to be recycled can be directly conveyed along the wear-resistant layer, which not only avoids wear on the induction coil, but also uses the wear-resistant layer to limit the movement of the product to be recycled.

[0021] 6. By straightening the product to be recycled to a flat or near-flat shape, even products with extremely high protrusions can be heated uniformly.

[0022] 7. It can achieve both heat stripping and recycling of one product to be recycled and simultaneous heat stripping and recycling of multiple products to be recycled, thus improving recycling efficiency. Attached Figure Description

[0023] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a front view of the metal coil composite flexible surface layer peeling device in an embodiment of this utility model.

[0025] Figure 2 yes Figure 1 A schematic diagram of a section of metal coil cut off.

[0026] Figures 3-5 The diagrams shown are, in order, schematics of two, three, and four products to be recycled passing through the inside of the induction coil in this embodiment of the present invention.

[0027] Figure 6 This is a schematic diagram of the wear-resistant layer in an embodiment of the present invention, and a schematic diagram of using the wear-resistant layer as a heat insulation layer.

[0028] Figure 7 This is a schematic diagram of the independent wear-resistant layer and heat-insulating layer in an embodiment of this utility model.

[0029] Figure 8 This is a schematic diagram showing the position of the correction mechanism in an embodiment of this utility model.

[0030] Figure 9 This is a schematic diagram illustrating the working principle of the correction mechanism in this utility model embodiment.

[0031] In the diagram: 1. Conveying mechanism; 2. Induction coil; 3. Winding mechanism; 31. Roller; 32. Rotating frame; 4. Wear-resistant layer; 5. Insulation layer; 6. Correction mechanism.

[0032] Product to be recycled 100, protrusion 100a, metal coil 101, flexible surface layer 102. Detailed Implementation

[0033] The specific embodiments of this utility model will now be described in detail with reference to the accompanying drawings. Obviously, the described embodiments are merely some, not all, of the embodiments of this utility model. Based on the description of this utility model, all other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of this utility model.

[0034] Unless otherwise explicitly specified and limited, the terms "setup," "installation," and "connection" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium. Those skilled in the art can understand the specific meaning of these terms based on the specific circumstances.

[0035] The terms “upper,” “lower,” “left,” “right,” “front,” “back,” “top,” “bottom,” “inner,” and “outer,” etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use. They are used only for the convenience of description and simplification, 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. Therefore, they should not be construed as limitations on this utility model.

[0036] The terms “first,” “second,” “third,” etc., are used merely to distinguish elements with similar properties, not to indicate or imply relative importance or a specific order.

[0037] The terms “include,” “comprising,” or any other variation thereof are intended to cover non-exclusive inclusion, which includes not only the elements listed but also other elements not expressly listed.

[0038] Please refer to Figure 1 This utility model provides a metal coil composite flexible surface layer peeling device, including a conveying mechanism 1 and an electromagnetic heating device. The electromagnetic heating device is a heating device that uses the principle of electromagnetic induction to convert electrical energy into heat energy. Its core structure includes a high-frequency power supply, an induction coil 2, and a frequency control system. When high-frequency alternating current passes through the induction coil 2, an alternating magnetic field is formed around the induction coil 2. The magnetic field lines penetrate the metal heating element and induce countless vortex-shaped currents (eddy currents) inside it. Under the action of the resistance of the metal material, these eddy currents are like millions of tiny heating wires heating up simultaneously, achieving efficient energy conversion through the Joule effect, that is, converting electrical energy into heat energy.

[0039] This invention utilizes a conveying mechanism 1 to transport the product 100 to be recycled through an alternating magnetic field formed around an induction coil 2. The metal coil 101 of the product 100 to be recycled is the aforementioned "metal heating element." By controlling the frequency of the current passing through the induction coil 2 through a frequency control system, the surface heating depth of the metal coil 101 can be controlled. The principle is based on the skin effect of electromagnetic induction, and the formula for calculating the skin depth (δ) is: δ = Where ρ is the resistivity of the material and μ is the magnetic permeability of the material. The current frequency is given. The skin depth δ is related to the frequency. f The current is inversely proportional to the square root of the frequency; the higher the frequency, the smaller the skin depth and the more concentrated the current is on the surface; the lower the frequency, the deeper the current penetrates. In this embodiment, a high-frequency (10-500 kHz) current is preferably used, and the heating depth of the metal coil surface is 0.1-1 mm.

[0040] In theory, under normal circumstances, when the eddy current is located inside the metal coil, due to the skin effect, the current is concentrated on the entire surface of the metal coil, thereby achieving simultaneous heating of both sides of the metal coil. However, when the metal coil is thick enough, by adjusting the distance between the induction coil and the metal coil, so that the distance between the eddy current and one side of the metal coil is much smaller than the distance between the eddy current and the other side of the metal coil, due to the skin effect, the current is concentrated on one side of the metal coil, and only one side of the surface has a significant heating effect. In this case, the power can be concentrated to heat only the side of the metal coil with the flexible panel attached. After the surface layer of the metal coil 101 is heated, the flexible surface layer 102 is heated to near the softening point through heat conduction, thereby achieving the purpose of peeling the metal coil 101 from the non-metallic flexible surface layer 102.

[0041] The stripping of the product to be recycled 100 can be done manually or by automated mechanical equipment. Since the flexible surface layer 102 has a certain weight, it can sag under gravity after softening when heated, which is conducive to stripping. Therefore, it can be further configured to place the product to be recycled 100 on the conveying mechanism 1 with the flexible surface layer 102 facing downward.

[0042] Furthermore, the metal coil composite flexible surface layer peeling device proposed in this embodiment also includes a winding mechanism 3. The winding mechanism 3 includes a rotating structure and a capturing structure. The capturing structure is used to capture the head of the flexible surface layer 102 after initial peeling. The rotating structure is used to rotate and wind up the flexible surface layer 102 after the capturing structure has completed capturing.

[0043] Optionally, the capturing structure adopts a clamping structure, which can be a pair of rollers 31. The flexible surface layer 102 is clamped by the opposite movement of the pair of parallel rollers 31. Specifically, a rotating frame 32 is connected to the rotating shaft of a motor. A pair of rollers 31 that can move in opposite directions and be locked in position are set on the rotating frame 32. The head of the first peeled flexible surface layer 102 is passed between the pair of rollers 31. Figure 1 The dashed curve is the path of the flexible surface layer 102. Then, a pair of rollers 31 are used to clamp the flexible surface layer 102, and then the motor is started to drive the rotating frame 32 to rotate and wind the flexible surface layer 102.

[0044] Optionally, the capture structure can also adopt a negative pressure adsorption structure, which includes a suction cup or suction hole connected to a negative pressure air pipe. Specifically, a roller shaft is connected to the rotating shaft of a motor, and a suction cup or suction hole is set on the side of the roller shaft to adsorb the head of the first peeled flexible surface layer 102. The flexible surface layer 102 is wound around by starting the motor to drive the roller shaft to rotate.

[0045] Alternatively, the capture structure can also employ a magnetic attraction structure, such as a permanent magnet or electromagnet. Specifically, a roller shaft is connected to the rotating shaft of a motor, and a magnetic attraction structure is fixed on the roller shaft. Please refer to [reference needed]. Figure 2 The product to be recycled 100 has a section of metal coil 101 cut off at the head (but the flexible surface layer 102 is not cut off). When the product to be recycled 100 is heated by the induction coil 2, the cut metal coil 101 increases the weight of the softened flexible surface layer 102, thereby accelerating the peeling.

[0046] Furthermore, the circuit between the induction coil 2 and the high-frequency power supply adopts a detachable design (the detachable connection between the wires is existing technology and will not be described in detail in this embodiment), and the induction coil 2 is modeled after the product to be recycled 100 in the direction perpendicular to the plate surface of the product to be recycled 100. That is, the shape, position and size of the bends on the metal coil 101 are the same at the corresponding locations on the induction coil 2. Before the electromagnetic heating device is put into operation, the corresponding induction coil 2 is replaced according to the cross-sectional shape of the product to be recycled 100, so that the metal coil 101 is heated evenly.

[0047] Alternatively, please refer to Figure 1 The induction coil 2 is located only on one side of the conveying mechanism 1, and the product to be recycled 100 passes through the alternating magnetic field parallel to the induction coil 2.

[0048] Specifically, the conveying mechanism 1 includes one or more conveyor lines, which can be conveyor belts, conveyor chains, or conveyor rollers. Each conveyor line is used to convey one product 100 to be recycled through the alternating magnetic field of the induction coil 2. Please refer to... Figure 1 and Figure 2A separate transmission line can be used to transmit the alternating magnetic field of induction coil 2; if the heating power is sufficient and power waste is not a concern, please refer to... Figures 3 to 5 Multiple conveyor lines can also be used simultaneously to transport multiple products 100 to be recycled through the alternating magnetic field of induction coil 2 to improve heating efficiency.

[0049] Alternatively, please refer to Figure 2 The induction coil 2 is arranged around the conveying mechanism 1, that is, the induction coil 2 surrounds the product 100 to be recycled, and a piece of the product 100 to be recycled passes through the induction coil 2 at the middle position; in other embodiments, please refer to Figures 3-5 Alternatively, multiple products to be recycled can be arranged in the contour shape of the 100-shaped induction coil 2 and pass through the induction coil 2, for example: Please refer to Figure 3 The induction coil 2 forms a narrow rectangular space, and the two products to be recycled 100 are arranged parallel to each other in this space; please refer to... Figure 4 The induction coil 2 forms a triangular space, and the three strips of products to be recycled 100 are arranged in a triangle within this space; please refer to... Figure 5 The induction coil 2 forms a square space, and four products to be recycled 100 are arranged in a square within this space. This method of heating multiple products to be recycled 100 together in the same induction coil 2 has the advantages of better heat preservation, less heat loss, saving horizontal floor space, and simultaneously stripping multiple products to be recycled 100 at one time, compared to the method of heating them sequentially in one induction coil 2.

[0050] Furthermore, the induction coil 2 is covered with a wear-resistant layer 4, which is suitable for contacting the surface of the product to be recycled 100 and limiting the product to be recycled 100 during the conveying process. By covering the induction coil 2 with a wear-resistant layer 4, the protrusion 100a of the product to be recycled 100 can be conveyed directly against the wear-resistant layer 4 (because the product to be recycled 100 is very long and will be slightly twisted and deformed, it is inevitable that some parts will rub against the wear-resistant layer 4 during the conveying process). This not only avoids the induction coil 2 being worn, but also uses the wear-resistant layer 4 to limit the product to be recycled 100 during the conveying process. When the wear-resistant layer 4 is used as a limiting structure, it can be arranged on both the upper and lower sides of the product to be recycled 100, whether the product to be recycled 100 has an induction coil 2 on only the upper side or on both the upper and lower sides.

[0051] For further details, please refer to Figure 7 The metal coil composite flexible surface peeling device proposed in this embodiment also includes a heat insulation layer 5. The heat insulation layer 5 has a through channel for the product to be recycled 100 to pass through, and the induction coil 2 is located in the channel. Optionally, please refer to Figure 6, the wear-resistant layer 4 (the wear-resistant layer 4 is also the heat-insulating layer 5 at the same time) can be made of a material with heat-insulating properties, and the wear-resistant layer 4 surrounds the product to be recycled 100 to form a furnace chamber. The product to be recycled 100 can be heated by passing through the furnace chamber. Optionally, please refer to Figure 7 , a square heat-insulating layer 5 independent of the wear-resistant layer 4 is adopted, and the induction coil 2 and the wear-resistant layer 4 are located in the furnace chamber of the heat-insulating layer 5.

[0052] Furthermore, the metal coil composite flexible surface layer peeling device proposed in this embodiment further includes a correction mechanism 6. In the conveying direction, the correction mechanism 6 is located before the induction coil 2, and the product to be recycled 100 is adapted to pass through the correction mechanism 6 and the induction coil 2 in sequence. Please refer to Figure 9 , the correction mechanism 6 is adapted to correct the product to be recycled 100 to a straight or nearly straight state. The nearly straight state means that the height of the protrusion 100a on the product to be recycled 100 is less than the specified standard. Specifically, by means of flattening or stretching, the product to be recycled 100 is corrected to a straight state or the height of the protrusion 100a is corrected to be less than the specified standard (for example, less than 3 cm, that is, nearly straight), so that the product to be recycled 100 with a super-high protrusion 100a can also be heated evenly.

[0053] In summary, for the metal coil composite flexible surface layer peeling device proposed in this embodiment, the product to be recycled 100 is passed through the induction coil 2, the appropriate frequency is adjusted, and the surface of the metal coil 101 adhered to the flexible surface layer 102 is accurately heated. The rapidly heated surface of the metal coil 101 thermally conducts and heats the adjacent flexible surface layer 102 to near the softening point, achieving the purpose of peeling the metal coil 101 from the non-metallic flexible surface layer 102. And because the product to be recycled 100 passes through the induction coil 2 at a controllable speed and does not need to stay in the alternating magnetic field for heating, the peeling efficiency is improved.

[0054] The above is only the specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by those skilled in the art within the technical scope disclosed by the present invention should be covered within the protection scope of the present invention.

Claims

1. A metal coil composite flexible surface layer peeling device, characterized in that, The device includes a conveying mechanism and an electromagnetic heating device. The electromagnetic heating device includes an induction coil and a frequency control system. The conveying mechanism is used to convey the product to be recycled through the induction coil. The induction coil is adapted to heat one or both sides of the metal coil and heats the flexible surface layer to a peelable degree through heat conduction on the metal surface layer on the side to which the flexible surface layer is attached. The frequency control system is used to control the frequency of the current passing through the induction coil to control the surface heating depth of the metal coil.

2. The metal coil composite flexible surface layer peeling device according to claim 1, characterized in that, The product to be recycled is placed on the conveying mechanism with the flexible surface facing down.

3. The metal coil composite flexible surface layer peeling device according to claim 1 or 2, characterized in that, It also includes a winding mechanism, which includes a rotating structure and a capturing structure. The capturing structure is used to capture the head of the flexible surface layer after it has been initially peeled off, and the rotating structure is adapted to rotate and wind up the flexible surface layer after the capturing structure has completed capturing.

4. The metal coil composite flexible surface layer peeling device according to claim 3, characterized in that, The capturing structure is a clamping structure, a negative pressure adsorption structure, or a magnetic attraction structure.

5. The metal coil composite flexible surface layer peeling device according to claim 1, characterized in that, The induction coil is detachable and conforms to the shape of the product to be recycled in a direction perpendicular to the plate surface.

6. The metal coil composite flexible surface layer peeling device according to claim 1, characterized in that, The induction coil is covered with a wear-resistant layer.

7. The metal coil composite flexible surface layer peeling device according to claim 1, characterized in that, The induction coil is located only on one side of the transmission mechanism, or is arranged around the perimeter of the transmission mechanism.

8. The metal coil composite flexible surface layer peeling device according to claim 1, characterized in that, The electromagnetic heating device includes an insulation layer with a through-channel for the product to be recycled to pass through, and the induction coil is located in the channel.

9. The metal coil composite flexible surface layer peeling device according to claim 1, characterized in that, The conveying mechanism includes one or more conveying lines, each of which is used to convey a product to be recycled through the induction coil.

10. The metal coil composite flexible surface layer peeling device according to claim 1, characterized in that, It also includes a correction mechanism, which is located before the induction coil in the conveying direction. The product to be recycled is adapted to pass through the correction mechanism and the induction coil in sequence. The correction mechanism is adapted to correct the product to be recycled to a straight or nearly straight shape.

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