Rolled copper foil degreasing and pre-deoiling device and production equipment

Abstract

The utility model belongs to the technical field of rolled copper foil processing, and particularly relates to a rolled copper foil degreasing and pre-deoiling device and production equipment. The rolled copper foil degreasing and pre-deoiling device comprises a rack, a conveying roller and a liquid squeezing roller assembly. The conveying roller is mounted on the rack and is used for conveying the copper foil; the liquid squeezing roller assembly is installed on the rack and comprises two liquid squeezing rollers which are parallel to each other and can rotate, and elastic rubber layers are arranged on the surfaces of the liquid squeezing rollers; the liquid squeezing roller assembly is configured to pre-remove oil of the copper foil before the copper foil enters the degreasing tank. By adopting the degreasing pre-deoiling device disclosed by the utility model, the cleanliness of the surface of the copper foil can be improved, and the working pressure of the subsequent degreasing tank can be reduced, so that the use amount of a degreasing agent can be reduced, the degreasing cost can be reduced, and the degreasing efficiency and the degreasing effect can be improved.

Description

Technical Field

[0001] This utility model relates to the field of rolled copper foil processing technology, and in particular to a degreasing and pre-oiling device and production equipment for rolled copper foil. Background Technology

[0002] Currently, during the production of rolled copper foil, a large amount of rolling oil often remains on the surface of the copper foil. To effectively remove this rolling oil, the rolled copper foil is usually immersed directly into a degreasing tank, where chemical solvents dissolve and clean the grease. However, this direct immersion degreasing method not only consumes a large amount of degreasing agent, increasing production costs, but also leads to poor degreasing results, thus affecting the quality of subsequent copper foil processing. For example, it can cause quality problems such as poor plating adhesion and uneven etching.

[0003] Therefore, there is an urgent need for a pretreatment device that can pre-degrease copper foil before degreasing. Utility Model Content

[0004] In view of the above problems, this utility model is proposed to provide a degreasing and pre-degreasing device and production equipment for rolled copper foil that overcomes or at least partially solves the above problems, so as to reduce the amount of degreasing agent used, reduce degreasing costs, and improve degreasing efficiency and degreasing effect.

[0005] Specifically, this utility model provides a degreasing and pre-oil removal device for rolled copper foil, comprising:

[0006] frame;

[0007] Conveyor rollers, mounted on the frame, are used to convey copper foil;

[0008] A squeezing roller assembly is mounted on the frame. The squeezing roller assembly includes two parallel and rotatable squeezing rollers, with a gap between the two squeezing rollers for copper foil to pass through. The surface of the squeezing rollers is provided with an elastic rubber layer. The squeezing roller assembly is configured to squeeze and remove oil from the copper foil before it enters the degreasing tank.

[0009] Optionally, the thickness of the elastic rubber layer is 10 to 20 millimeters;

[0010] The core of the squeezing roller is made of metal.

[0011] The elastic rubber layer is made of nitrile rubber or polyurethane rubber.

[0012] Optionally, the degreasing and pre-oiling device for rolled copper foil further includes:

[0013] A gap adjustment mechanism, mounted on the frame, is used to adjust the radial gap between the two squeezing rollers.

[0014] Optionally, the degreasing and pre-oiling device for rolled copper foil further includes:

[0015] An oil receiving tray is located below the extrusion roller assembly and is used to collect rolling oil dripping from the copper foil.

[0016] Optionally, in the aforementioned degreasing and pre-oil removal device for rolled copper foil, the oil receiving tray is provided with an inclined guide groove, and the end of the inclined guide groove is connected to an oil collection pipe.

[0017] Optionally, the surface of the elastic rubber layer is provided with a groove array, the depth of which is 50 to 200 micrometers.

[0018] Optionally, the degreasing and pre-oiling device for rolled copper foil further includes:

[0019] Two motors are provided, one for each of the squeezing rollers, and the output shaft of each motor is connected to the corresponding squeezing roller to drive the squeezing roller to rotate; the motors are variable frequency speed control motors.

[0020] Optionally, the two squeezing rollers are an upper squeezing roller and a lower squeezing roller, respectively;

[0021] The gap adjustment mechanism is connected to the upper squeezing roller and is used to adjust the height of the upper squeezing roller.

[0022] Optionally, the gap adjustment mechanism includes two lead screw and nut mechanisms, which are disposed on both sides of the upper squeezing roller along its axial direction.

[0023] Each of the lead screw and nut mechanisms includes a lead screw and a nut; the lead screw is vertically arranged and rotatably mounted on the frame; the lead screw and the nut are threadedly engaged; the upper extrusion roller is rotatably mounted on a first bearing seat, and the first bearing seat is fixedly connected to the outer wall of the nut.

[0024] On the other hand, this embodiment also provides a rolled copper foil production equipment, including a degreasing tank and a rolled copper foil degreasing and pre-oil removal device as described in any of the above.

[0025] This invention utilizes a squeezing roller assembly to pre-degrease copper foil before it enters the degreasing tank. This improves the cleanliness of the copper foil surface, reduces the working pressure of the subsequent degreasing tank, thereby reducing the amount of degreasing agent used, lowering degreasing costs, and improving degreasing efficiency and effect. Furthermore, the elastic rubber layer on the squeezing roller surface protects the copper foil from scratches, ensuring the quality of the copper foil and the smooth progress of subsequent processing.

[0026] The above and other objects, advantages and features of this utility model will become more apparent to those skilled in the art from the following detailed description of specific embodiments of this utility model in conjunction with the accompanying drawings. Attached Figure Description

[0027] The following sections will describe some specific embodiments of the present invention in a detailed manner by way of example and not limitation, with reference to the accompanying drawings. The same reference numerals in the drawings denote the same or similar parts or components. Those skilled in the art should understand that these drawings are not necessarily drawn to scale. In the drawings:

[0028] Figure 1 This is a schematic structural diagram of a degreasing and pre-oiling device for rolled copper foil according to an embodiment of the present invention;

[0029] Figure 2 This is a schematic structural diagram of a squeezing roller assembly and a gap adjustment mechanism according to an embodiment of the present invention;

[0030] Figure 3 This is a schematic structural diagram of the surface of an elastic rubber layer according to an embodiment of the present invention;

[0031] Figure 4 This is a schematic structural diagram of an oil receiving tray according to an embodiment of the present utility model.

[0032] Figure label:

[0033] 1. Frame; 11. First mounting plate; 12. Second mounting plate;

[0034] 2. Conveyor rollers;

[0035] 3. Squeezing roller assembly; 31. Upper squeezing roller; 32. Lower squeezing roller; 33. Elastic rubber layer; 331. Groove array; 34. First bearing housing;

[0036] 4. Oil receiving tray; 41. Inclined guide channel; 42. Oil collecting pipe;

[0037] 5. Clearance adjustment mechanism; 51. Lead screw; 52. Nut; 53. Handle;

[0038] 6. Degreasing tank;

[0039] 7. Copper foil. Detailed Implementation

[0040] The following reference Figures 1 to 4This invention describes a degreasing and pre-oiling apparatus and production equipment for rolled copper foil according to embodiments of the present invention. In this description, it should be understood that 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. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature, that is, include one or more of that feature. In the description of the present invention, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified. When a feature "includes or contains" one or more of the features it encompasses, unless otherwise specifically described, this indicates that other features are not excluded and may be further included.

[0041] Unless otherwise expressly specified and limited, the terms "set," "install," "connect," "link," "fix," and "couple" 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 expressly limited. Those skilled in the art should be able to understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0042] Furthermore, in the description of this embodiment, "above" or "below" the second feature can include direct contact between the first and second features, or it can include contact between the first and second features through another feature between them. That is, in the description of this embodiment, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," or "below" of the second feature can mean the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0043] In the description of this embodiment, the terms "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0044] Figure 1This is a schematic structural diagram of a degreasing and pre-oiling device for rolled copper foil according to an embodiment of the present invention, as shown below. Figure 1 As shown, and refer to Figures 2 to 4 This utility model provides a degreasing and pre-oil removal device for rolled copper foil, which includes a frame 1, a conveying roller 2 and a squeezing roller assembly 3.

[0045] Specifically, the frame 1 is the supporting structure of the entire pre-degreasing device. It can be designed as a stable and easy-to-maintain frame, and the material can be high-strength steel to ensure long-term stability and durability. The conveyor roller 2 is mounted on the frame 1 and is used to continuously convey the copper foil 7. The degreasing pre-degreasing device may consist of only one conveyor roller 2, which is electrically connected to a drive motor to drive its rotation. Alternatively, the degreasing pre-degreasing device may include multiple parallel conveyor rollers 2, forming a conveyor roller group. The power source for the conveyor roller group can be a motor-driven chain or belt drive system. The surface of the conveyor roller 2 is covered with an anti-slip material to ensure smooth and continuous conveying of the copper foil 7 through the entire processing flow. The squeezing roller assembly 3 is mounted on the frame 1 and is located at the front end of the conveying path of the conveyor roller 2 and close to the degreasing tank 6. The squeezing roller assembly 3 includes two parallel and rotatable squeezing rollers, with a gap between them for the copper foil 7 to pass through. Each squeezing roller includes a roller core and an elastic rubber layer sleeved on the outside of the roller core. In other words, the surface of the squeezing roller is provided with an elastic rubber layer 33. The squeezing roller assembly 3 is configured to pre-degrease the copper foil 7 before it enters the degreasing tank 6. The elastic rubber layer 33 not only has good wear resistance, but also effectively prevents scratches on the surface of the copper foil 7, while providing sufficient squeezing pressure to remove the rolling oil from the surface of the copper foil 7.

[0046] The working principle of the pre-degreasing device for rolled copper foil in this embodiment is as follows: Copper foil 7 is continuously conveyed to the squeezing roller assembly 3 by the conveying roller 2. The two squeezing rollers, whose surfaces are covered with elastic rubber layers 33, rotate to form a squeezing action. When the copper foil 7 passes through the gap between the two squeezing rollers, the elastic rubber layers 33 adhere to the surface of the copper foil 7, squeezing out the rolling oil, thereby achieving pre-degreasing of the copper foil 7. After pretreatment, the amount of oil on the surface of the copper foil 7 is significantly reduced when it enters the degreasing tank 6, thereby reducing the consumption of subsequent degreasing agent.

[0047] The beneficial effects of this embodiment are as follows: By configuring the squeezing roller assembly 3, the copper foil 7 is pre-degreased before entering the degreasing tank 6. On the one hand, this improves the cleanliness of the copper foil 7 surface, reduces the working pressure of the subsequent degreasing tank 6, thereby reducing the amount of degreasing agent used, lowering degreasing costs, and improving degreasing efficiency and effect. On the other hand, the elastic rubber layer 33 on the surface of the squeezing roller can protect the copper foil 7, avoiding damage caused by direct roller core friction, thus ensuring the quality of the copper foil 7 and the smooth progress of subsequent processing.

[0048] In some embodiments of this invention, the thickness of the elastic rubber layer 33 is 10 to 20 mm. Preferably, the thickness of the elastic rubber layer 33 is 15 mm. By selecting a suitable thickness for the elastic rubber layer 33, this embodiment can provide sufficient elastic compressive force while avoiding damage to the copper foil 7 due to excessive compression.

[0049] In some embodiments of this invention, the core of the squeezing roller is made of metal. For example, the core is made of stainless steel, alloy steel, or iron to ensure sufficient strength and rigidity.

[0050] In some embodiments of this utility model, the elastic rubber layer 33 is made of nitrile rubber or polyurethane rubber.

[0051] like Figure 3 As shown, in some embodiments of this invention, the surface of the elastic rubber layer 33 is provided with a groove array 331 to improve the adsorption and conduction efficiency of the rolling oil. The depth of the groove array 331 is 50 to 200 micrometers.

[0052] In this embodiment, by setting a groove array 331 with a depth of 50 to 200 micrometers on the surface of the elastic rubber layer 33, these fine groove structures can significantly increase the contact area with the rolling oil, thereby enhancing the adsorption and flow capacity of the rolling oil, and thus improving the overall degreasing effect of the pre-degreasing device, enabling effective pre-degreasing treatment of the copper foil 7 before it enters the degreasing tank 6.

[0053] In some embodiments of this invention, the degreasing and pre-oil removal device for rolled copper foil further includes an oil receiving tray 4, which is disposed below the squeezing roller assembly 3 and is used to collect rolling oil dripping from the copper foil 7. Specifically, the squeezing roller squeezes out the rolling oil and guides it into the lower oil receiving tray 4.

[0054] In this embodiment, the oil collection tray 4 facilitates the collection of rolling oil dripping from the copper foil 7 after extrusion, thereby helping to maintain a clean working environment. The rolling oil recovered by the oil collection tray 4 can be recycled, reducing production costs and environmental pollution risks.

[0055] In some embodiments of this invention, the oil receiving tray 4 is detachably connected to the frame 1. For example, the oil receiving tray 4 and the frame 1 can be connected by a snap-fit ​​or a threaded connection. In this embodiment, by making the oil receiving tray 4 detachable, it is convenient to clean and replace the oil receiving tray 4. In some alternative embodiments, the oil receiving tray 4 is fixedly mounted on the frame 1.

[0056] like Figure 4 As shown, in some embodiments of this utility model, the oil receiving tray 4 is provided with an inclined guide groove 41, and the end of the inclined guide groove 41 is connected to an oil collecting pipe 42. The oil collecting pipe 42 is used to transport the collected rolling oil to an external recycling container.

[0057] In this embodiment, by setting an inclined guide groove 41 in the oil receiving pan 4, the rolling oil is effectively guided to flow in a specific direction and collect in the oil collection pipe 42 connected at the end, thereby achieving efficient collection and guidance of the rolling oil. This makes it easy to directly transport the collected rolling oil to an external recycling container for reuse, which not only improves the cleanliness of the production site, but also promotes the conservation and recycling of resources.

[0058] In some alternative embodiments, the degreasing and pre-oiling device for rolled copper foil may not include the oil receiving tray 4. During operation, an oil receiving tray 4 can be temporarily placed below the extrusion roller assembly 3 to collect the rolling oil extruded by the extrusion roller assembly 3.

[0059] In some embodiments of this utility model, the degreasing and pre-oiling device for rolled copper foil further includes a gap adjustment mechanism 5. The gap adjustment mechanism 5 is mounted on the frame 1 and is used to adjust the radial gap between the two squeezing rollers to accommodate the processing requirements of copper foil 7 of different thicknesses, thus improving the device's versatility. In this embodiment, the gap adjustment mechanism 5 can be a screw-nut mechanism, a hydraulic push rod mechanism, or an electric push rod mechanism. Specifically, the gap adjustment mechanism 5 is connected to one of the squeezing rollers and is used to drive that squeezing roller radially closer to or further away from the other squeezing roller.

[0060] In some embodiments of this invention, the degreasing and pre-oiling device for rolled copper foil includes two motors. Each motor is paired with one of two squeezing rollers. The output shaft of each motor is connected to the corresponding squeezing roller via a coupling or directly, driving the squeezing roller to rotate. After the motor starts, it drives the squeezing roller connected to it to rotate, thereby squeezing out the surface rolling oil through the friction between the two squeezing rollers and the copper foil, while ensuring that the copper foil 7 is subjected to a uniform squeezing force as it passes through the gap between the two squeezing rollers.

[0061] Furthermore, the two squeezing rollers are an upper squeezing roller 31 and a lower squeezing roller 32, which are distributed vertically and horizontally. The two motors rotate in opposite directions. The lower squeezing roller 32 rotates in the same direction as the conveying roller 2, while the upper squeezing roller 31 rotates in the opposite direction to the conveying roller 2. This configuration enhances the relative motion between the copper foil 7 and the squeezing rollers, thereby improving the extrusion efficiency of the rolling oil and the shearing and stripping effect on the rolling oil. The cleanliness of the copper foil 7 surface ensures effective pre-degreasing before entering the subsequent degreasing tank 6, optimizing the overall degreasing and pre-degreasing effect.

[0062] Preferably, the motor is a variable frequency speed control motor, which is electrically connected to the controller. The controller is configured to dynamically adjust the speed of the squeezing roller according to the conveying speed of the copper foil 7 to ensure the uniformity of the squeezing pressure.

[0063] like Figure 2 As shown, in some embodiments of this utility model, the gap adjustment mechanism 5 is connected to the upper squeezing roller 31 and is used to adjust the height of the upper squeezing roller 31, thereby adjusting the gap between the two squeezing rollers.

[0064] In some embodiments of this utility model, the gap adjustment mechanism includes two lead screw and nut mechanisms, which are disposed on both sides of the upper squeezing roller along its axial direction.

[0065] Each gap adjustment mechanism 5 includes a lead screw 51 and a nut 52. The lead screw 51 is vertically arranged and rotatably mounted on the frame 1. The nut 52 is sleeved on the lead screw 51, and the lead screw and the nut 52 are threadedly engaged. The two ends of the upper squeezing roller 31 are rotatably mounted on the first bearing seat 34, and the first bearing seat 34 is fixedly connected to the outer wall of the nut 52. For example, the front or rear side of the first bearing seat 34 is fixedly connected to the outer wall of the nut 52. The two ends of the lower squeezing roller 32 are rotatably mounted on the second bearing seat, and the second bearing seat is fixedly mounted on the frame 1.

[0066] Specifically, a first mounting plate 11 and a second mounting plate 12 are formed on the frame 1, with the first mounting plate 11 located above the second mounting plate 12. The upper end of the lead screw 51 is rotatably mounted on the first mounting plate 11 via a first mounting shaft, and the lower end of the lead screw 51 is rotatably mounted on the second mounting plate 12 via a second mounting shaft. Further, the first mounting plate 11 has mounting holes, and the first mounting shaft is inserted into these holes, with its upper end extending above the first mounting plate 11. A handle 53 is provided at the top of the first shaft; by providing the handle 53, the lead screw 51 can be easily rotated. Alternatively, a motor can be connected to the top of the first mounting shaft, allowing the motor to drive the first mounting shaft to rotate, thereby driving the lead screw to rotate.

[0067] In this embodiment, by synchronously rotating two lead screws 51, the threaded engagement between the lead screws 51 and the nuts 52 drives the nuts 52, which are sleeved on the lead screws 51, to move up and down. Since the nuts 52 are fixedly connected to the first bearing seats 34 at both ends of the upper squeezing roller 31, the movement of the nuts 52 will cause the upper squeezing roller 31 to move up and down relative to the lower squeezing roller 32, which is fixedly mounted on the frame 1, thereby achieving precise adjustment of the gap between the two. Specifically, to increase the gap, the handle 53 can be rotated in the first direction, causing the nuts 52 and the upper squeezing roller 31 to move upward along the lead screw. To decrease the gap, the handle 53 can be rotated in the second direction, causing the nuts 52 and the upper squeezing roller 31 to move downward along the lead screw. The first direction and the second direction are opposite to each other.

[0068] In this embodiment, the gap adjustment mechanism 5 achieves precise adjustment of the gap between the upper extrusion roller 31 and the lower extrusion roller 32 by rotating the lead screw and utilizing the screw-nut 52 mechanism's helical transmission principle. The gap adjustment mechanism 5 in this embodiment has the advantages of simple structure, low cost, and easy assembly.

[0069] In some embodiments of this utility model, the rotational speed ratio of the two squeezing rollers is 1:1, and the squeezing roller group and the conveying roller 2 rotate at the same frequency.

[0070] An embodiment of this utility model also provides a rolling copper foil production equipment, which includes a degreasing tank 6 and a rolling copper foil degreasing and pre-oil removal device as described in any of the above embodiments.

[0071] The copper foil production equipment of this embodiment can pre-degrease the copper foil 7 before it enters the degreasing tank 6 using a copper foil degreasing pre-degreasing device. This reduces the amount of degreasing agent used and improves the degreasing effect.

[0072] Therefore, those skilled in the art should recognize that although many exemplary embodiments of the present invention have been shown and described in detail herein, many other variations or modifications conforming to the principles of the present invention can be directly determined or derived from the disclosure of the present invention without departing from the spirit and scope of the present invention. Therefore, the scope of the present invention should be understood and recognized as covering all such other variations or modifications.

Claims

1. A degreasing and pre-oil removal device for rolled copper foil, characterized in that, include: frame; Conveyor rollers, mounted on the frame, are used to convey copper foil; A squeezing roller assembly is mounted on the frame. The squeezing roller assembly includes two parallel and rotatable squeezing rollers, with a gap between the two squeezing rollers for copper foil to pass through. The surface of the squeezing rollers is provided with an elastic rubber layer. The squeezing roller assembly is configured to squeeze and remove oil from the copper foil before it enters the degreasing tank.

2. The degreasing and pre-oiling device for rolled copper foil according to claim 1, characterized in that, The thickness of the elastic rubber layer is 10 to 20 millimeters; The core of the squeezing roller is made of metal. The elastic rubber layer is made of nitrile rubber or polyurethane rubber.

3. The degreasing and pre-oiling device for rolled copper foil according to claim 1, characterized in that, Also includes: A gap adjustment mechanism, mounted on the frame, is used to adjust the radial gap between the two squeezing rollers.

4. The degreasing and pre-oiling device for rolled copper foil according to claim 1, characterized in that, Also includes: An oil receiving tray is located below the extrusion roller assembly and is used to collect rolling oil dripping from the copper foil.

5. The degreasing and pre-oiling device for rolled copper foil according to claim 4, characterized in that, The oil receiving tray is provided with an inclined guide groove, and the end of the inclined guide groove is connected to an oil collection pipe.

6. The degreasing and pre-oiling device for rolled copper foil according to claim 1, characterized in that, The surface of the elastic rubber layer is provided with a groove array, the depth of which is 50 to 200 micrometers.

7. The degreasing and pre-oiling device for rolled copper foil according to claim 1, characterized in that, Also includes: Two motors are provided, one for each of the squeezing rollers, and the output shaft of each motor is connected to the corresponding squeezing roller; The motor is a variable frequency speed control motor.

8. The degreasing and pre-oiling device for rolled copper foil according to claim 3, characterized in that, The two squeezing rollers are an upper squeezing roller and a lower squeezing roller, respectively; The gap adjustment mechanism is connected to the upper squeezing roller and is used to adjust the height of the upper squeezing roller.

9. The degreasing and pre-oiling device for rolled copper foil according to claim 8, characterized in that, The gap adjustment mechanism includes two lead screw and nut mechanisms, which are located on both sides of the upper squeezing roller along its axial direction. Each of the lead screw and nut mechanisms includes a lead screw and a nut; the lead screw is vertically arranged and rotatably mounted on the frame; the lead screw and the nut are threadedly engaged; the upper extrusion roller is rotatably mounted on a first bearing seat, and the first bearing seat is fixedly connected to the outer wall of the nut.

10. A rolling copper foil production equipment, characterized in that, It includes a degreasing tank and a degreasing and pre-oil removal device for rolled copper foil as described in any one of claims 1-9.

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