A copper powder recovery device for a green foil machine

Abstract

A copper powder recovery device for a foil production machine, comprising a powder suction device for recovering copper powder, which can be designed according to the shape of a powder production port at the edge of a foil cutting device, and is adapted to the position of the powder production port and provided in a non-contact manner, with a larger opening at one end facing the powder production port and tapering towards the other end, in a horn shape, and with the other end connected to a dust suction pipeline. The utility model can effectively capture copper powder from the source, improve the workshop working environment, protect the health of workshop personnel, reduce the pollution of copper powder to the foil surface, reduce surface defects, and facilitate the recycling of resources by recovering high-purity copper powder.

Description

Technical Field

[0001] This utility model relates to copper foil production equipment, specifically a copper powder recovery device for a copper foil production machine. Background Technology

[0002] Electrolytic copper foil is a core material for manufacturing printed circuit boards and lithium-ion batteries. The copper foil production process involves first producing raw copper foil through an electrolytic process using a foil-making machine, and then cutting the copper foil to the width required by the customer using a cutting device.

[0003] During the foil cutting process, the cutter shears the copper foil, generating fine copper dust. This copper dust is lightweight and easily dispersed, filling the workshop air and polluting the production environment. It can also harm the respiratory system of workshop personnel. Furthermore, the dispersed copper dust easily adheres to the surface of the copper foil, affecting its quality. Utility Model Content

[0004] The purpose of this invention is to provide a copper powder recovery device for a foil production machine, which can promptly recover the escaped copper powder, effectively ensuring environmental conditions and avoiding any impact on the respiratory system of workshop personnel and the quality of the copper foil.

[0005] To achieve the above objectives, this utility model provides a copper powder recovery device for a foil production machine, including a powder suction device for recovering copper powder. The powder suction device can be structurally designed according to the shape of the powder production port at the edge of the copper foil of the foil cutting device. It is adapted to the position of the powder production port and is set in a non-contact manner. The end of the device facing the powder production port has a larger opening and gradually narrows to the other end, forming a trumpet shape. The end of the device away from the powder production port is connected to a dust suction pipe.

[0006] Furthermore, the powder suction device of this utility model is a contour suction nozzle, which includes a powder suction port and a powder discharge port, and has a tapered structure from the powder suction port to the powder discharge port. The side of the powder suction port has an arc, and the distance between the powder suction port and its matching powder discharge port does not exceed two centimeters.

[0007] Furthermore, the powder outlet end of the contoured nozzle of this utility model is connected to a vacuum hose, the two vacuum hoses are connected to the copper powder filter storage tank through a T-junction, and the air outlet of the copper powder filter storage tank is connected to a fan through a pipeline.

[0008] Furthermore, the contour-following nozzle of this invention is connected to the vacuum hose via a bamboo-joint tube.

[0009] Furthermore, the copper powder filter storage tank of this utility model includes a filter tank and a filter element, with the filter element installed inside the filter tank.

[0010] Furthermore, the fan of this utility model is equipped with a silencer at the air outlet.

[0011] Furthermore, the silencer of this utility model is an impedance composite silencer.

[0012] Compared with existing technologies, this invention features a simple structure, convenient installation, and high copper powder recovery rate. The powder suction device employs a non-contact contour-following design at the point where the cutter meets the copper foil. This design aims to create a controllable and efficient local negative pressure zone near the powder production port. The collected copper powder is then piped into a copper powder filtration and storage tank. A filter is installed in the tank to effectively separate the gas and solid phases and store the copper powder. The outlet of the copper powder filtration and storage tank is connected to the inlet of a dust collector fan, which provides adsorption and airflow power. A silencer is connected to the outlet to reduce the aerodynamic noise generated by the fan. The copper powder collected by this invention is of high purity and can be directly recycled in the copper powder filtration and storage device for reuse. This invention effectively captures copper powder at its source, improving the workshop working environment and protecting the health of workers. It also reduces copper powder contamination of the foil surface, minimizing surface defects. Centralized recycling of high-purity copper powder promotes resource recycling. Attached Figure Description

[0013] Figure 1 This is a top view of the present invention mounted on the cutting device; Figure 2 This is a left-side view of the present invention mounted on the stripping roller; Figure 3 for Figure 2 A magnified view of a portion at point A; Figure 4 This is a top view of the mounting position of the contour-following nozzle of this utility model; Figure 5 This is a structural diagram of the copper powder filter storage tank of this utility model.

[0014] In the picture: 1. Contouring nozzle, 2. Bamboo tube, 3. Vacuum hose, 4. Copper powder filter storage tank, 41. Filter tank, 42. Filter element, 5. Silencer, 6. Fan, 7. Peeling roller, 8. Cutter, 9. T-joint. Detailed Implementation

[0015] The present invention will be further described below with reference to the accompanying drawings.

[0016] like Figures 1 to 5 As shown, a copper powder recovery device for a foil production machine includes a powder suction device for recovering copper powder. The powder suction device can be structurally designed according to the shape of the powder production port at the edge of the copper foil of the foil cutting device. It is adapted to the position of the powder production port and is set in a non-contact manner. The end of the device facing the powder production port has a larger opening and gradually narrows to the other end, forming a trumpet shape. The end of the device away from the powder production port is connected to a dust suction pipe.

[0017] The powder suction device of this utility model is a contour suction nozzle 1, which includes a powder suction port and a powder discharge port. The powder suction port has a tapered structure from the powder suction port to the powder discharge port. The side of the powder suction port has an arc, and the distance between the powder suction port and the powder discharge port it cooperates with does not exceed two centimeters.

[0018] The vacuum hose 3 of this invention is used to connect the bamboo joint tube 2 and the tee 9, so that the relative installation position of this structure can be adjusted according to the frame structure, making the layout more flexible.

[0019] The contour-following nozzle 1 of this utility model is connected to the vacuum hose 3 via the bamboo joint tube 2. Its advantage is that the position of the contour-following nozzle 1 can be easily adjusted and is not easily changed once the position is determined.

[0020] The outlet of the fan 6 of this utility model is equipped with a silencer 5. The silencer 5 is an impedance composite silencer, which is installed at the outlet of the fan 6. On the one hand, the silencer 5 can absorb sound wave energy through porous sound-absorbing material, and on the other hand, it can change the cross section of the fan outlet pipe, so that the sound wave will reflect, interfere and resonate during the propagation process, consume sound energy, and effectively reduce the noise during the operation of the fan.

[0021] The copper powder filter storage tank 4 of this utility model includes a filter tank 41 and a filter element 42. The filter element 42 is installed inside the filter tank 41. The copper powder filter storage tank 4 can prevent copper powder from entering the blower 6 through the pipe to avoid damaging the blower 6. On the other hand, it can collect copper powder for centralized recycling.

[0022] Embodiments of this utility model are given. The powder suction device of this invention is arranged below the cutter 8 and the stripping roller 7, forming a controllable and efficient negative pressure airflow field near the powder production area, which can effectively prevent copper powder from escaping to the external area. Figure 1-4 As shown, the contour suction nozzle 1 has structural features. The contour suction nozzle 1 is a C-shaped structure designed to correspond with the shape of the peeling roller 7, making it as close as possible to the vicinity of the peeling roller 7 at the foil cutting position. Under the action of the fan 6, a negative pressure area is formed along the vicinity of the peeling roller's cutting groove, allowing the generated copper powder to be sucked in to the maximum extent and delivered to the copper powder suction device. Furthermore... Figure 3 and Figure 4 As you can see, the contour nozzle 1 is trumpet-shaped, and the entire contour nozzle 1 device has a tapered structure, which can obtain a larger capture area at the opening of the contour nozzle 1, and can smoothly guide the airflow, reduce eddies and pressure loss, so that the airflow can be sucked in more smoothly and more efficiently.

[0023] This invention features a simple structure, convenient installation, and high copper powder recovery rate. The contour-following nozzle 1 employs a non-contact contour-following design at the point where the cutter meets the copper foil, creating a localized negative pressure zone. The copper powder collected by the nozzle 1 enters the copper powder filter storage tank 4 through a pipeline. A filter element 42 is installed in the tank 4, effectively achieving gas-solid separation and storing the copper powder. The outlet of the tank is connected to the inlet of a fan 6, which provides adsorption and airflow power to the system. The outlet of the fan 6 is connected to a silencer 5, which attenuates the aerodynamic noise generated by the fan 6. The collected copper powder is of high purity and can be directly recycled in the copper powder filter storage device for reuse.

Claims

1. A copper powder recovery device for a foil-making machine, characterized in that, It includes a powder-collecting device for recovering copper powder. The powder-collecting device can be structurally designed according to the shape of the powder-generating port at the edge of the copper foil of the foil cutting device. It is adapted to the position of the powder-generating port and is set in a non-contact manner. The end of it facing the powder-generating port has a larger opening and gradually narrows to the other end, forming a trumpet shape. The end of it away from the powder-generating port is connected to a dust collection pipe.

2. The copper powder recovery device for a foil-making machine according to claim 1, characterized in that, The powder suction device is a contour suction nozzle (1), which includes a powder suction port and a powder discharge port. The powder suction port has a tapered structure from the powder suction port to the powder discharge port. The side of the powder suction port is curved, and the distance between the powder suction port and the powder discharge port is no more than two centimeters.

3. A copper powder recovery device for a foil-making machine according to claim 2, characterized in that, The powder outlet of the contour nozzle (1) is connected to the suction hose (3), and the two suction hoses (3) are connected to the copper powder filter storage tank (4) through the tee (9). The air outlet of the copper powder filter storage tank (4) is connected to the fan (6) through the pipeline.

4. A copper powder recovery device for a foil-making machine according to claim 3, characterized in that, The contour nozzle (1) is connected to the vacuum hose (3) via the bamboo tube (2).

5. A copper powder recovery device for a foil-making machine according to claim 3, characterized in that, The copper powder filter storage tank (4) includes a filter tank (41) and a filter element (42), with the filter element (42) installed inside the filter tank (41).

6. A copper powder recovery device for a foil-making machine according to claim 4, characterized in that, A silencer (5) is provided at the air outlet of the fan (6).

7. A copper powder recovery device for a foil-making machine according to claim 6, characterized in that, (5) An impedance composite silencer is selected.

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