Preparation method of porous copper foil and combined machine tool for production

Abstract

The invention discloses a porous copper foil preparation method and a combined machine tool for production. The combined machine tool comprises a machine tool body, a machining table is fixedly connected to the outer wall of the top of the machine tool body, a supporting table is fixedly connected to one end of the machine tool body, a supporting plate is fixedly connected to the top of the supporting table, and a motor is fixedly connected to the outer wall of one side of the supporting plate; the output end of the motor is fixedly connected with an unwinding roller, the copper foil body and the release paper are both wound on the circumferential outer wall of the unwinding roller, and the copper foil body and the release paper are bonded with each other. According to the copper foil punching device, reverse movement and rotation of the first gear disc can be achieved, a pressing roller can horizontally roll on a copper foil body through rotation and horizontal movement of the first gear disc, and therefore the pressing area of the copper foil body is enlarged, and the punched copper foil body is pressed while punching of the copper foil body is achieved; the situation that the copper foil and the release paper are not firmly bonded and fall off is avoided, and the quality and efficiency of the produced copper foil are guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of modular machine tools, and in particular to a method for preparing a porous copper foil and a modular machine tool for producing the same. Background Art

[0002] Porous copper foil is a metal foil, usually made of copper or aluminum alloy. It has many properties and applications, especially in the fields of electronic products and mechanical processing. Porous copper foil can be prepared by a variety of methods, including etching and deposition. Etching can obtain porous copper foil with a relatively regular structure and smooth pore walls, while deposition can obtain porous copper foil with rich structure and large specific surface area. Porous copper foil has good conductivity, flexibility and tensile strength, which makes it widely used in electronic products.

[0003] At present, in the production process of porous copper foil, a modular machine tool is needed to process it according to specific shapes and sizes to meet the manufacturing needs of various parts and components in the fields of electronics, circuits, communications, etc. The copper foil processed by the modular machine tool is often used for conductive components in printed circuit boards PCB, electromagnetic shielding materials, contact pieces of electronic connectors, etc. It has the advantages of high precision, ability to process complex shapes, and relatively high material utilization.

[0004] However, when the existing modular machine tool is processing copper foil, when the copper foil waste is peeled off from the required copper foil, the copper foil and the release paper are not firmly bonded and fall off, which affects the production quality and efficiency of the copper foil. Therefore, a preparation method of porous copper foil and a modular machine tool for production are urgently needed to solve the above problems. Summary of the invention

[0005] In view of the problems in the related art, the present invention proposes a method for preparing a porous copper foil and a combined machine tool for production thereof, so as to overcome the above-mentioned technical problems existing in the existing related art.

[0006] The technical solution of the present invention is achieved in this way:

[0007] A method for preparing a porous copper foil comprises the following steps:

[0008] S1: Pour raw copper and hot dilute sulfuric acid into a reactor to react and produce a copper sulfate solution, which is then filtered to adjust the temperature and electrolyte composition to prepare an electrolyte with high purity that meets process regulation;

[0009] S2: Add additives to the electrolyte, use low voltage and high current technology, and through electrolytic chemical reaction, make the copper ions in the electrolyte gain electrons and adhere to the continuously rotating high-performance titanium cathode roller. With the continuous electrolytic deposition, a copper foil of a certain thickness is formed. As the produced copper foil passes through the continuous rotation of the cathode roller, pickling, water washing, drying, stripping and other processes, it is stripped and wound into a copper foil roll;

[0010] S3: The original copper foil is subjected to pickling, organic anti-oxidation and other surface treatment processes to form a finished copper foil body;

[0011] S4: Punching and forming the copper foil body by a modular machine tool.

[0012] A combined machine tool for producing porous copper foil, applied to a method for preparing porous copper foil described in the above embodiment, comprises a bed, the top outer wall of the bed is fixedly connected to a processing table, one end of the bed is fixedly connected to a support table, the top of the support table is fixedly connected to a support plate, one side outer wall of the support plate is fixedly connected to a motor, the output end of the motor is fixedly connected to a reel, the copper foil body and release paper are both wound on the circumferential outer wall of the reel, and the copper foil body and the release paper are bonded to each other;

[0013] The top of the bed is fixedly connected to a gantry, the top outer wall of the gantry is fixedly connected to a first hydraulic rod, the output end of the first hydraulic rod is fixedly connected to a die base, the bottom outer wall of the die base is fixedly connected to punching heads distributed at equal distances, one end of the punching head is provided with a blade, the top outer wall of the processing table is fixedly connected to a first fixed frame, the top of the first fixed frame is fixedly connected to a second hydraulic rod, the output end of the second hydraulic rod is fixedly connected to a cutter, one side outer wall of the gantry is fixedly connected to a control box, one side outer wall of the gantry is fixedly connected to an extension plate, one side of the extension plate is rotatably connected to a guide roller, the number of the guide rollers is two groups, and the copper foil body and the release paper pass through between the two groups of guide rollers;

[0014] A pressing assembly is provided on the top of the processing table;

[0015] A driving assembly for driving the pressing assembly to reciprocate is arranged inside the processing table.

[0016] Furthermore, the driving assembly includes a rotating column rotatably connected to the inside of the processing table, the circumferential outer walls of the rotating column are respectively fixedly connected with a worm wheel and a second gear plate, the bottom outer wall of the mold base is fixedly connected with a second rack, the second rack is meshed with the second gear plate, the worm wheel is meshed with a worm, one end of the worm is fixedly connected with a threaded screw, the circumferential outer wall of the threaded screw is meshed with a threaded sleeve, the top outer wall of the threaded sleeve is fixedly connected with a first rack, the first rack is meshed with a first gear plate, a partition is fixedly connected to the inside of the processing table, one end of the worm is away from the threaded screw and is rotatably connected to the partition, and a through groove is provided on the top outer wall of the processing table.

[0017] Furthermore, a second guide rod is fixedly connected to an outer wall of one side of the partition, a guide cylinder is sleeved on a circumferential outer wall of the second guide rod, and the guide cylinder is fixedly connected to the threaded sleeve.

[0018] Furthermore, a guide column is fixedly connected to the bottom outer wall of the mold base, a guide hole is opened on the top outer wall of the processing table, the guide column cooperates with the guide hole, and the guide column is arranged on one side of the second rack.

[0019] Furthermore, the clamping assembly includes a second fixed frame arranged above the processing table, and the inner walls on both sides of the second fixed frame are rotatably connected to a rotating shaft, one end of the rotating shaft is fixedly connected to a pressure roller, and the end of the rotating shaft away from the pressure roller is fixedly connected to the first gear plate, and the pressure roller is pressed against the top outer wall of the copper foil body.

[0020] Furthermore, the top outer wall of the mold base is fixedly connected to a rotating seat, the rotating seat is rotatably connected to a pressure plate, one side outer wall of the pressure plate is fixedly connected to a first spring, and one end of the first spring away from the pressure plate is fixedly connected to the top outer wall of the mold base.

[0021] Furthermore, a sliding rod is fixedly connected to the top outer wall of the second fixed frame, a fixing tube is inserted into one end of the sliding rod, a second spring is fixedly connected to the top inner wall of the fixing tube, one end of the sliding rod located inside the fixing tube is fixedly connected to a slide plate, and one end of the second spring away from the top inner wall of the fixing tube is fixedly connected to an outer wall on one side of the slide plate.

[0022] Furthermore, a first guide rod is fixedly connected to an outer wall on one side of the gantry, a limiting groove is provided on the top outer wall of the first guide rod, a sliding column is fixedly connected to the top outer wall of the fixed cylinder, and one end of the sliding column away from the fixed cylinder passes through the inside of the limiting groove.

[0023] Furthermore, a limiting plate is fixedly connected to the top outer wall of the sliding column, and a diameter of the limiting plate is greater than a width of the limiting groove.

[0024] Beneficial effects of the present invention:

[0025] The present invention provides a preparation method of porous copper foil and a combined machine tool for production. The die base can be driven to move downward as a whole through a first hydraulic rod. During the downward movement of the die base, the punching head at the bottom thereof can be driven to descend together until the punching head contacts the copper foil body. At this time, the copper foil body can be quickly punched out by a blade arranged at the bottom of the punching head. At the same time, the punching head above the blade is a solid structure, thereby effectively avoiding warping and bending of the punching head during the punching of the copper foil body, thereby ensuring that the quality of the copper foil sheet produced meets people's use needs.

[0026] The present invention provides a method for preparing a porous copper foil and a combined machine tool for its production. By providing a driving assembly and a clamping assembly, a pressing plate fixed on the top of the die base will also descend along with it during the process of the die base descending. When the pressing plate descends to contact with the second fixed frame, the die base will continue to descend. At this time, the pressing plate will apply downward pressure to the second fixed frame. When the second fixed frame is subjected to downward pressure, the pressing roller and the first gear plate will descend together until the first gear plate is meshed with the first rack. At this time, the pressing roller will also be pressed against the top of the copper foil body and the release paper, thereby realizing the pressing work between the copper foil body and the release paper after punching and cutting, avoiding the subsequent processing process. The copper foil body falls off, and then the threaded sleeve threadedly connected to its outer wall drives the first rack to move horizontally through the rotation of the threaded screw in the driving assembly. When the first rack moves horizontally, it drives the first gear plate to mesh with it, so that the first gear plate can move in the opposite direction and rotate. The rotation and horizontal movement of the first gear plate can make the pressing roller roll horizontally on the copper foil body, thereby expanding the pressing area of ​​the copper foil body, realizing the punching of the copper foil body and pressing the punched copper foil body at the same time, avoiding the situation that the copper foil sheet and the release paper are not firmly bonded and fall off, thereby ensuring the quality and efficiency of the output copper foil sheet. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0028] Figure 1 It is a schematic diagram of the overall front structure of the combined machine tool of the present invention.

[0029] Figure 2 For the present invention Figure 1 Schematic diagram of the enlarged structure at point A in the middle.

[0030] Figure 3 It is a side view of the combined machine tool of the present invention.

[0031] Figure 4 For the present invention Figure 3 Schematic diagram of the enlarged structure at point B in the middle.

[0032] Figure 5 It is a schematic diagram of the unwinding roller structure of the combined machine tool of the present invention.

[0033] Figure 6 It is a schematic diagram of the mold base structure of the present invention.

[0034] Figure 7 It is a schematic diagram of the cross-sectional structure of the processing table of the present invention.

[0035] Figure 8 For the present invention Figure 7 Schematic diagram of the enlarged structure at point C in the middle.

[0036] Fig. 9 It is a schematic diagram of the local structure of the driving component of the present invention.

[0037] Fig.10 For the present invention Fig. 9 Schematic diagram of the enlarged structure at D in the middle.

[0038] In the figure:

[0039] 1. Bed; 2. Processing table; 3. Support table; 4. Motor; 5. Support plate; 6. Unwinding roller; 7. Release paper; 8. Copper foil body; 9. First hydraulic rod; 10. Gantry; 11. Die base; 12. First fixed frame; 13. Second hydraulic rod; 14. Cutter; 15. First guide rod; 16. Limiting plate; 17. Limiting groove; 18. Fixed cylinder; 19. Second fixed frame; 20. Pressing roller; 21. Sliding rod; 22. Through groove; 23. Worm gear; 24. First gear plate; 25. First rack; 26. Guide roller; 27. Extension plate; 28. Control box; 29. ​​First spring; 30. Pressure plate; 31. Rotating seat; 32. Sliding column; 33. Punching head; 34. Blade; 35. Guide column; 36. Second rack; 37. Partition; 38. Rotating column; 39. Second guide rod; 40. Guide hole; 41. Worm; 42. Threaded screw; 43. Guide cylinder; 44. Threaded sleeve; 45. Second gear plate; 46. Second spring; 47. Slide plate. DETAILED DESCRIPTION

[0040] The technical solution of this patent is further described in detail below in conjunction with specific implementation methods.

[0041] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0042] In the description of this patent, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing this patent and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this patent.

[0043] In the description of this patent, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "set" should be understood in a broad sense, for example, it can be fixedly connected or set, or it can be detachably connected or set, or connected or set in one piece. For ordinary technicians in this field, the specific meanings of the above terms in this patent can be understood according to specific circumstances.

[0044] See also Figure 1-Figure 10 , a method for preparing a porous copper foil, comprising the following steps:

[0045] Step 1: Pour the raw copper and hot dilute sulfuric acid into a reactor to react and produce a copper sulfate solution, then filter and adjust the temperature and electrolyte composition to prepare an electrolyte with high purity that meets process regulation;

[0046] Step 2: Add additives to the electrolyte, use low voltage and high current technology, and through electrolytic chemical reaction, make the copper ions in the electrolyte gain electrons and adhere to the continuously rotating high-performance titanium cathode roller. With the continuous electrolytic deposition, a copper foil of a certain thickness is formed. As the produced copper foil passes through the continuous rotation of the cathode roller, pickling, water washing, drying, peeling and other processes, it is peeled and wound into a copper foil roll;

[0047] Step 3: The original copper foil is subjected to pickling, organic anti-oxidation and other surface treatment processes to form a copper foil body 8 finished product;

[0048] Step 4: Punch and shape the copper foil body 8 by using a modular machine tool.

[0049] A combined machine tool for producing porous copper foil is applied to a method for preparing porous copper foil, comprising a bed 1, a processing table 2 is fixedly connected to the top outer wall of the bed 1, a support table 3 is fixedly connected to one end of the bed 1, a support plate 5 is fixedly connected to the top of the support table 3, a motor 4 is fixedly connected to the outer wall of one side of the support plate 5, an unwinding roller 6 is fixedly connected to the output end of the motor 4, a copper foil body 8 and a release paper 7 are both wound on the circumferential outer wall of the unwinding roller 6, and the copper foil body 8 and the release paper 7 are bonded to each other;

[0050] The top of the bed 1 is fixedly connected with a gantry 10, the top outer wall of the gantry 10 is fixedly connected with a first hydraulic rod 9, the output end of the first hydraulic rod 9 is fixedly connected with a die base 11, the bottom outer wall of the die base 11 is fixedly connected with punch heads 33 distributed at equal distances, and a blade 34 is arranged at one end of the punch head 33, the top outer wall of the processing table 2 is fixedly connected with a first fixed frame 12, the top of the first fixed frame 12 is fixedly connected with a second hydraulic rod 13, and the output end of the second hydraulic rod 13 is fixedly connected with a cutter 14, one side outer wall of the gantry 10 is fixedly connected with a control box 28, one side outer wall of the gantry 10 is fixedly connected with an extension plate 27, one side of the extension plate 27 is rotatably connected with a guide roller 26, the number of the guide rollers 26 is two groups, the copper foil body 8 and the release paper 7 pass through between the two groups of guide rollers 26, The staff first starts the motor 4 to feed the copper foil body 8. When the copper foil body 8 is unwound to the bottom of the gantry 10, the motor 4 stops and the first hydraulic rod 9 starts. The die base 11 can be driven to move downward as a whole through the first hydraulic rod 9. During the downward movement of the die base 11, the punch head 33 at the bottom thereof can be driven to move downward together until the punch head 33 contacts the copper foil body 8. At this time, the copper foil body 8 can be quickly punched through the blade 34 arranged at the bottom of the punch head 33. At the same time, the punch head 33 above the blade 34 is a solid structure, so that the punch head 33 can be effectively prevented from warping and bending during the punching of the copper foil body 8, thereby ensuring that the quality of the copper foil sheet produced meets people's use needs. In addition, the height of the blade 34 is limited, so as to avoid cutting the release paper 7.

[0051] A clamping assembly is provided on the top of the processing table 2;

[0052] A driving assembly for driving the pressing assembly to reciprocate is arranged inside the processing table 2 .

[0053] Preferably, the driving assembly includes a rotating column 38 rotatably connected to the inside of the processing table 2, the circumferential outer wall of the rotating column 38 is fixedly connected to the worm gear 23 and the second gear plate 45, the bottom outer wall of the mold base 11 is fixedly connected to the second rack 36, the second rack 36 is meshed with the second gear plate 45, the worm gear 23 is meshed with a worm 41, one end of the worm 41 is fixedly connected to a threaded screw 42, the circumferential outer wall of the threaded screw 42 is meshed with a threaded sleeve 44, the top outer wall of the threaded sleeve 44 is fixedly connected to the first rack 25, the first rack 25 is meshed with the first gear plate 24, a partition 37 is fixedly connected to the interior of the processing table 2, one end of the worm 41 away from the threaded screw 42 is rotatably connected to the partition 37, a through groove 22 is provided on the top outer wall of the processing table 2, a second guide rod 39 is fixedly connected to the outer wall of one side of the partition 37, a guide cylinder 43 is sleeved on the circumferential outer wall of the second guide rod 39, and the guide cylinder 43 is fixedly connected to the threaded sleeve 44, a guide column 35 is fixedly connected to the bottom outer wall of the mold base 11, a guide hole 40 is provided on the top outer wall of the processing table 2, the guide column 35 cooperates with the guide hole 40, and the guide column 35 is arranged on the second gear On one side of the rack 36, the die base 11 will drive the second rack 36 to descend together. After the second rack 36 descends to the inside of the processing table 2, it will mesh with the second gear plate 45, so that the second gear plate 45 and the rotating column 38 can be driven to rotate together. During the rotation of the rotating column 38, the worm wheel 23 can be driven to rotate. The rotation of the worm wheel 23 can drive the worm 41 meshed with it to rotate together. When the worm 41 rotates, the threaded screw 42 at one end thereof can be driven to rotate. The rotation of the threaded screw 42 can make the threaded sleeve 44 threadedly connected to its outer wall carry The first rack 25 is driven to move horizontally. When the first rack 25 moves horizontally, it will drive the first gear plate 24 to mesh with it, so that the first gear plate 24 can move in the opposite direction and rotate. The rotation and horizontal movement of the first gear plate 24 can make the pressing roller 20 roll horizontally on the copper foil body 8, thereby expanding the pressing area of ​​the copper foil body 8, and realizing the pressing of the copper foil body 8 while punching the copper foil body 8, so as to avoid the situation that the copper foil sheet and the release paper 7 are not firmly bonded and fall off, thereby ensuring the quality and efficiency of the output copper foil sheet.

[0054] Preferably, the clamping assembly includes a second fixed frame 19 arranged above the processing table 2, and the inner walls on both sides of the second fixed frame 19 are rotatably connected to the rotating shaft, one end of the rotating shaft is fixedly connected to the pressure roller 20, and the end of the rotating shaft away from the pressure roller 20 is fixedly connected to the first gear plate 24, and the pressure roller 20 is pressed on the top outer wall of the copper foil body 8, and the top outer wall of the mold base 11 is fixedly connected to the rotating seat 31, and the rotating seat 31 is rotatably connected to the pressure plate 30, and the outer wall of one side of the pressure plate 30 is fixedly connected to the first spring 29, and the end of the first spring 29 away from the pressure plate 30 is fixedly connected to the top outer wall of the mold base 11, and the top outer wall of the second fixed frame 19 is fixedly connected to the sliding rod 21, and one end of the sliding rod 21 is inserted with the fixed cylinder 18, and the top inner wall of the fixed cylinder 18 is fixedly connected to the second spring 46, and the end of the sliding rod 21 located inside the fixed cylinder 18 is fixedly connected to the slide plate 47, and the end of the second spring 46 away from the top inner wall of the fixed cylinder 18 is fixedly connected to the slide plate On one side outer wall of 47, the pressure plate 30 fixed on the top of the mold base 11 will also descend with it during the descent of the mold base 11. When the pressure plate 30 descends to contact with the second fixed frame 19, the mold base 11 will continue to descend. At this time, the pressure plate 30 will apply downward pressure to the second fixed frame 19. When the second fixed frame 19 is subjected to downward pressure, the pressure roller 20 and the first gear plate 24 will descend together until the first gear plate 24 is meshed with the first rack 25. At this time, the pressure roller 20 will also be pressed tightly on the top of the copper foil body 8 and the release paper 7, so as to achieve the pressing work between the copper foil body 8 and the release paper 7 after punching and cutting, and avoid the copper foil body 8 falling off during subsequent processing. When the mold base 11 continues to descend after the first gear plate 24 is meshed with the first rack 25, the second spring 46 fixedly connected above the pressure plate 30 will be gradually compressed, but the mutual meshing between the first gear plate 24 and the first rack 25 is always maintained.

[0055] Preferably, a first guide rod 15 is fixedly connected to an outer wall on one side of the gantry 10, a limiting groove 17 is provided on the top outer wall of the first guide rod 15, a sliding column 32 is fixedly connected to the top outer wall of the fixed cylinder 18, an end of the sliding column 32 away from the fixed cylinder 18 passes through the inside of the limiting groove 17, and a limiting plate 16 is fixedly connected to the top outer wall of the sliding column 32, a diameter of the limiting plate 16 is greater than the width of the limiting groove 17, and the sliding of the sliding column 32 in the limiting groove 17 ensures the stability of the pressing roller 20 during the horizontal movement and pressing of the copper foil body 8 and the release paper 7.

[0056] In summary, with the aid of the above-mentioned technical scheme of the present invention, when in use, the staff first starts the motor 4 to realize the feeding work of the copper foil body 8. When the copper foil body 8 is unwound to the bottom of the gantry 10, the motor 4 stops and the first hydraulic rod 9 starts at the same time. The first hydraulic rod 9 can drive the die base 11 to move downward as a whole. In the process of the die base 11 moving downward, the punching head 33 at the bottom thereof can be driven to descend together until the punching head 33 contacts the copper foil body 8. At this time, the copper foil body 8 can be quickly punched through the blade 34 arranged at the bottom of the punching head 33. At the same time, the punching head 33 above the blade 34 is a solid structure, so that the punching head 33 can be effectively prevented from warping and bending during the punching process of the copper foil body 8, thereby ensuring that the copper foil body 8 is not warped or bent. It is proved that the quality of the copper foil produced meets the use requirements of people, and the height of the blade 34 is limited, which can avoid cutting the release paper 7, and the pressing plate 30 fixed on the top of the mold base 11 will also descend with it during the descent of the mold base 11. When the pressing plate 30 descends to contact with the second fixed frame 19, the mold base 11 will continue to descend. At this time, the pressing plate 30 will apply downward pressure to the second fixed frame 19. When the second fixed frame 19 is subjected to downward pressure, the pressing roller 20 and the first gear plate 24 will be lowered together until the first gear plate 24 is meshed with the first rack 25. At this time, the pressing roller 20 will also be pressed tightly on the top of the copper foil body 8 and the release paper 7, so that the copper foil body 8 and the release paper 7 after punching can be realized. The pressing work is performed to prevent the copper foil body 8 from falling off during the subsequent processing. When the first gear plate 24 is meshed with the first rack 25 and the die base 11 continues to descend, the second spring 46 fixedly connected to the top of the pressure plate 30 will be gradually compressed, but the mutual meshing between the first gear plate 24 and the first rack 25 is always maintained. At the same time, the die base 11 will drive the second rack 36 to descend together. After the second rack 36 descends to the inside of the processing table 2, it will mesh with the second gear plate 45, thereby driving the second gear plate 45 and the rotating column 38 to rotate together. During the rotation of the rotating column 38, the worm wheel 23 can be driven to rotate, and the rotation of the worm wheel 23 can drive the worm 41 meshed with it to rotate together. When the rod 41 rotates, it can drive the threaded screw 42 at one end thereof to rotate. The rotation of the threaded screw 42 can enable the threaded sleeve 44 threadedly connected to its outer wall to drive the first rack 25 to move horizontally. When the first rack 25 moves horizontally, it will drive the first gear plate 24 to mesh with it, so that the first gear plate 24 can move in the opposite direction and rotate. The rotation and horizontal movement of the first gear plate 24 can enable the pressing roller 20 to roll horizontally on the copper foil body 8, thereby expanding the pressing area of ​​the copper foil body 8, and realizing the pressing of the copper foil body 8 while punching the copper foil body 8, so as to avoid the situation that the copper foil sheet and the release paper 7 are not firmly bonded and fall off, thereby ensuring the quality and efficiency of the copper foil sheet output.

[0057] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A method for preparing a porous copper foil, characterized in that: The following steps are involved: S1: Pour raw copper and hot dilute sulfuric acid into a reactor to react and produce a copper sulfate solution, which is then filtered to adjust the temperature and electrolyte composition to prepare an electrolyte with high purity that meets process regulation; S2: Add additives to the electrolyte, use low voltage and high current technology, and through electrolytic chemical reaction, make the copper ions in the electrolyte gain electrons and adhere to the continuously rotating high-performance titanium cathode roller. With the continuous electrolytic deposition, a copper foil of a certain thickness is formed. As the produced copper foil passes through the continuous rotation of the cathode roller, pickling, water washing, drying, stripping and other processes, it is stripped and wound into a copper foil roll; S3: The original copper foil is subjected to a surface treatment process such as pickling and organic anti-oxidation to form a finished copper foil body (8); S4: Punching and forming the copper foil body (8) by means of a combined machine tool.

2. A modular machine tool for producing porous copper foil, applied to the method for preparing a porous copper foil according to claim 1, characterized in that: The invention comprises a bed body (1), wherein the top outer wall of the bed body (1) is fixedly connected to a processing table (2), one end of the bed body (1) is fixedly connected to a support table (3), the top of the support table (3) is fixedly connected to a support plate (5), one side outer wall of the support plate (5) is fixedly connected to a motor (4), the output end of the motor (4) is fixedly connected to a reel (6), a copper foil body (8) and a release paper (7) are both wound on the circumferential outer wall of the reel (6), and the copper foil body (8) and the release paper (7) are bonded to each other; The top of the bed (1) is fixedly connected to a gantry (10), the top outer wall of the gantry (10) is fixedly connected to a first hydraulic rod (9), the output end of the first hydraulic rod (9) is fixedly connected to a die base (11), the bottom outer wall of the die base (11) is fixedly connected to punching heads (33) distributed at equal distances, one end of the punching heads (33) is provided with a blade (34), the top outer wall of the processing table (2) is fixedly connected to a first fixed frame (12), the first fixed frame (12) is fixedly connected to the output end of the first hydraulic rod (9) is fixedly connected to a die base (11), the bottom outer wall of the die base (11) is fixedly connected to punching heads (33) distributed at equal distances, one end of the punching heads (33) is provided with a blade (34), the top outer wall of the processing table (2) is fixedly connected to a first fixed frame (12), A second hydraulic rod (13) is fixedly connected to the top, and a cutter (14) is fixedly connected to the output end of the second hydraulic rod (13); a control box (28) is fixedly connected to an outer wall of one side of the gantry (10); an extension plate (27) is fixedly connected to an outer wall of one side of the gantry (10); a guide roller (26) is rotatably connected to one side of the extension plate (27); the guide rollers (26) are in two groups, and the copper foil body (8) and the release paper (7) both pass through between the two groups of guide rollers (26); A pressing assembly is provided on the top of the processing table (2); A driving component for driving the pressing component to reciprocate is arranged inside the processing table (2).

3. A modular machine tool for producing porous copper foil according to claim 2, characterized in that: The driving assembly comprises a rotating column (38) rotatably connected to the inside of the processing table (2), the circumferential outer wall of the rotating column (38) being fixedly connected to a worm gear (23) and a second gear plate (45), the bottom outer wall of the mold base (11) being fixedly connected to a second rack (36), the second rack (36) being meshed with the second gear plate (45), the worm gear (23) being meshed with a worm (41), one end of the worm (41) being fixedly connected to a threaded screw (41). 2), a threaded sleeve (44) is meshed on the circumferential outer wall of the threaded screw (42), a first rack (25) is fixedly connected to the top outer wall of the threaded sleeve (44), the first rack (25) is meshed with a first gear plate (24), a partition (37) is fixedly connected to the interior of the processing table (2), one end of the worm (41) away from the threaded screw (42) is rotatably connected to the partition (37), and a through groove (22) is provided on the top outer wall of the processing table (2).

4. A modular machine tool for producing porous copper foil according to claim 3, characterized in that: A second guide rod (39) is fixedly connected to an outer wall of one side of the partition plate (37), a guide cylinder (43) is sleeved on a circumferential outer wall of the second guide rod (39), and the guide cylinder (43) is fixedly connected to the threaded sleeve (44).

5. A modular machine tool for producing porous copper foil according to claim 4, characterized in that: A guide column (35) is fixedly connected to the bottom outer wall of the mold base (11), a guide hole (40) is opened on the top outer wall of the processing table (2), the guide column (35) cooperates with the guide hole (40), and the guide column (35) is arranged on one side of the second rack (36).

6. A modular machine tool for producing porous copper foil according to claim 5, characterized in that: The pressing assembly comprises a second fixed frame (19) arranged above the processing table (2), the inner walls on both sides of the second fixed frame (19) are rotatably connected to a rotating shaft, one end of the rotating shaft is fixedly connected to a pressing roller (20), and the end of the rotating shaft away from the pressing roller (20) is fixedly connected to the first gear plate (24), and the pressing roller (20) is pressed against the top outer wall of the copper foil body (8).

7. A modular machine tool for producing porous copper foil according to claim 6, characterized in that: A rotating seat (31) is fixedly connected to the top outer wall of the mold base (11), and a pressure plate (30) is rotatably connected to the rotating seat (31). A first spring (29) is fixedly connected to the outer wall of one side of the pressure plate (30), and one end of the first spring (29) away from the pressure plate (30) is fixedly connected to the top outer wall of the mold base (11).

8. The modular machine tool for producing porous copper foil according to claim 7, characterized in that: A sliding rod (21) is fixedly connected to the top outer wall of the second fixed frame (19); a fixed cylinder (18) is inserted into one end of the sliding rod (21); a second spring (46) is fixedly connected to the top inner wall of the fixed cylinder (18); an end of the sliding rod (21) located inside the fixed cylinder (18) is fixedly connected to a slide plate (47); and an end of the second spring (46) away from the top inner wall of the fixed cylinder (18) is fixedly connected to an outer wall of one side of the slide plate (47).

9. A modular machine tool for producing porous copper foil according to claim 8, characterized in that: A first guide rod (15) is fixedly connected to an outer wall of one side of the gantry (10); a limit groove (17) is provided on the top outer wall of the first guide rod (15); a sliding column (32) is fixedly connected to the top outer wall of the fixed cylinder (18); an end of the sliding column (32) away from the fixed cylinder (18) passes through the interior of the limit groove (17).

10. The modular machine tool for producing porous copper foil according to claim 9, characterized in that: The top outer wall of the sliding column (32) is fixedly connected to a limiting plate (16), and the diameter of the limiting plate (16) is greater than the width of the limiting groove (17).

Images