Preparation device of copper foil with low resistance and high tensile strength

Abstract

The invention relates to the technical field of electroplating processing, in particular to a preparation device of a low-resistance high-tensile-strength copper foil, glutin and thiourea additives used in a traditional process are abandoned, 2M5S without a self-annealing effect is used, the tensile strength can reach 600 Mpa or above, the effects of refining grains and greatly improving the tensile strength are achieved, and the copper foil with the low resistance and the high tensile strength is prepared. A silicon-carbon negative electrode material battery is adapted to the maximum extent; the mother roll does not need to be annealed, energy consumption is reduced, and production cost is reduced; according to the production process disclosed by the invention, products with the tensile strength of 400-600Mpa and above of 6 microns can be stably produced according to different additive proportions; and moreover, the arranged electrolysis conveying auxiliary assembly is used in cooperation with the adapting pipe, the butt joint pipe and the temporary regulation and control assembly, when the liquid feeding valve is replaced or disassembled for maintenance, the conveying work of liquid cannot be affected, the continuity of electrolysis production work is ensured, and the positive effect is achieved for improving the electrolysis machining benefits of the liquid feeding valve.

Description

Technical Field

[0001] The present invention relates to the technical field of electroplating processing, and particularly to a device for preparing a copper foil with low resistance and high tensile strength. Background Art

[0002] After retrieval, a document with the publication number CN206580899U discloses an electrolytic cell of a copper foil making machine. Its solution includes an electrolytic cell tank body. The electrolytic cell tank body includes a tank wall for connecting an upper liquid pipe. At least one opening is provided on the tank wall. A soft rubber plate is welded on the surface of each opening to seal the opening. At least sixteen through holes for connecting the upper liquid pipe are provided on the soft rubber plate. The shape, size and number of the through holes are all the same as those of the upper liquid pipe. By using the elasticity of the soft rubber plate, when there is a problem with the upper liquid valve of the upper liquid pipe of the electrolytic cell of the copper foil making machine, there is no need to saw off the upper liquid pipe. Just move the upper liquid pipe back and forth to disassemble the upper liquid valve for maintenance and flushing operations, avoiding the operation of repeatedly sawing and welding the upper liquid pipe.

[0003] In the above solution, the replacement problem of the upper liquid valve in the upper liquid pipe of the electrolytic cell equipment of the copper foil making machine is solved by setting a soft rubber plate. When replacing or maintaining it, on the one hand, the whole upper liquid pipe needs to be removed. Although the cutting problem is avoided, it still brings inconvenience to the operator. Moreover, when maintaining a certain upper liquid valve of the upper liquid pipe, the liquid delivery work will be suspended, or all the upper liquid pipes need to be suspended. After the maintenance and replacement are completed, the delivery work is carried out again, which will inevitably affect the work of copper foil electrolytic processing. The existing electrolytic cell of the copper foil making machine lacks a suitable electrolysis auxiliary component at the position of the upper liquid pipe mechanism to meet its use requirements, and corresponding improvements and optimizations are needed.

[0004] Therefore, the present invention proposes a device for preparing a copper foil with low resistance and high tensile strength to solve the above problems. Summary of the Invention

[0005] The purpose of the present invention is to provide a device for preparing a copper foil with low resistance and high tensile strength to solve the problems raised in the above background art.

[0006] To achieve the above purpose, the present invention provides the following technical solutions:

[0007] A device for preparing a copper foil with low resistance and high tensile strength includes a main body of an electrolytic cell of a copper foil making machine, an extension pipe, a receiving pipe, a docking pipe, an upper liquid pipe, an electrolysis delivery auxiliary component and a temporary regulation component;

[0008] The outer side wall of the main body of the electrolytic cell of the copper foil making machine is equidistantly provided with extension pipes, and one end of the extension pipe is connected to the docking pipe;

[0009] The docking pipe is provided with an opening and closing control valve, and the docking pipes are symmetrically arranged at both ends of the receiving pipe;

[0010] Both ends of the liquid supply pipe are respectively connected to the docking pipe, and a liquid supply valve is arranged on the liquid supply pipe; the docking pipe is connected to one end of the conveying pipe.

[0011] Preferably, the extension pipe and the docking pipe are firmly connected through an electrolytic conveying auxiliary component, the docking pipe and the liquid supply pipe are firmly connected through an electrolytic conveying auxiliary component, and the docking pipe and the conveying pipe are also firmly connected through an electrolytic conveying auxiliary component.

[0012] Preferably, the electrolytic conveying auxiliary component includes a docking disc, a positioning slot, an arc-shaped sealing gasket, a positioning block, an auxiliary groove, a fastening slot, a locking structure and a stabilizing component; the docking disc is fixedly arranged at both ends of the docking pipe, and the docking disc is also arranged at both ends of the liquid supply pipe. The docking disc is fixedly arranged at one end of the extension pipe, and the docking disc is also fixedly arranged at one end of the conveying pipe. The outer side wall of the docking disc is symmetrically provided with positioning slots, and the inner side wall of the arc-shaped sealing gasket is symmetrically and fixedly provided with positioning blocks. An auxiliary groove is arranged on the outer side of the end of the arc-shaped sealing gasket, and a fastening slot is arranged in the auxiliary groove.

[0013] Preferably, the two arc-shaped sealing gaskets are butted to form a sealing gasket ring; the positioning blocks and the positioning slots are arranged at corresponding positions and have the same number of sets, and the two are adaptively inserted.

[0014] Preferably, the locking structure includes a bearing plate body, a limiting convex body and a fastening strip; a limiting convex body is fixedly arranged at the top end of the bearing plate body, and fastening strips are symmetrically fixedly arranged at both ends of the bottom side of the bearing plate body; the inner sides of the fastening strips are inclined.

[0015] Preferably, the stabilizing component includes a stabilizing cover plate, a limiting edge, an end convex plate, a mounting hole, a connecting bolt, a limiting groove, a threaded groove hole and a stabilizing extrusion screw; the stabilizing cover plate is symmetrically and fixedly provided with limiting edges on both sides, and a threaded groove hole is arranged in the limiting edge and is threadedly connected to the stabilizing extrusion screw. End convex plates are symmetrically fixedly arranged at both ends of the stabilizing cover plate, and a mounting hole is arranged in the end convex plate. A limiting groove is arranged on the inner side wall of the stabilizing cover plate, and the limiting groove and the limiting convex body on the bearing plate body are arranged at corresponding positions and have the same number of sets; the two stabilizing cover plates form a stabilizing ring cover.

[0016] Preferably, the temporary control component includes a carrying box, a blocking control plate, a flow control groove, an auxiliary bearing, a control screw, a sealing plate, a sealing rubber sleeve and an auxiliary handle; the carrying box is arranged on the receiving tube, and the two are connected, a blocking control plate is inserted in the carrying box, one end of the blocking control plate is embedded and fixed with an auxiliary bearing, a flow control groove is arranged in the blocking control plate, the auxiliary bearing is sleeved at one end of the control screw, the control screw is penetrated in the sealing plate, the sealing plate is fixedly connected to the box mouth of the carrying box by screws, and an auxiliary handle is fixedly arranged at one end of the control screw.

[0017] Preferably, a sealing rubber sleeve is fixedly provided on one side of the sealing plate, and the regulating screw passes through the sealing rubber sleeve, the flow regulating groove is arranged as a cylindrical groove body, and the flow regulating groove is arranged through the sealing and regulating plate body, and the flow regulating groove is distributed in a triangular shape on the sealing and regulating plate body.

[0018] A method for preparing a low-resistance and high-tensile-strength copper foil includes:

[0019] Electrolyte preparation: copper ion concentration 90-100g / L, sulfuric acid concentration 95-105g / L, electrolyte temperature controlled at 52±2℃; the prepared electrolyte is filtered through diatomaceous earth and flows into the raw foil system through the high-level tank;

[0020] Adding additives: adding compound additives into the electrolyte;

[0021] Raw foil system: enters the high-level tank through pipelines to the electrolytic tank of the raw foil machine for electroplating;

[0022] Aging treatment: After the copper foil is rolled up, it is naturally aged for two days;

[0023] Product slitting: Products that have passed the inspection are slitting by slitting machines, packaged and transported.

[0024] Preferably, the compound additive is an additive system of 2-mercapto-5-benzimidazole sulfonic acid, polyethylene glycol, sodium polydisulfide dipropane sulfonate, hydroxyethyl cellulose and sodium chloride.

[0025] Compared with the prior art, the present invention has the following beneficial effects:

[0026] The present invention abandons the gelatin protein and thiourea additives used in traditional processes, and uses 2M5S without self-annealing effect. The tensile strength can reach more than 600 Mpa, which plays a role in refining the grains and significantly improving the tensile strength, and best matches the silicon-carbon anode material battery; it reduces the doping of organic impurities in the crystal and lowers the resistance of the material; the mother roll does not need to be annealed, reducing energy consumption and production costs; the production process of the present invention can stably produce products with a thickness of 6um and a tensile strength of 400-600 Mpa or more according to different additive ratios; furthermore, through the coordinated use of the electrolytic conveying auxiliary component, the receiving pipe, the docking pipe, and the temporary regulation component, when it is necessary to replace and maintain the liquid supply valve on the liquid supply pipe, the removal of the liquid supply pipe is more convenient, and on the basis of convenient disassembly and assembly, the tightness of its connection can also be ensured; through the coordinated use of the docking pipe, the opening and closing control valve and the receiving pipe, when replacing or disassembling and maintaining the liquid supply valve, it will not affect the liquid conveying work, ensuring the continuity of the electrolytic production work, which has a positive effect on improving the electrolytic processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic right-side view of the structural connection of the electrolytic cell of the copper foil machine of the present invention;

[0028] Figure 2 It is a schematic left-side view of the structural connection of the electrolytic cell of the copper foil machine of the present invention;

[0029] Figure 3 is Figure 2 a schematic enlarged view of the structural connection at A in

[0030] Figure 4 It is a schematic front-side view of the structural connection of the docking pipe, the liquid supply pipe and the electrolytic conveying auxiliary component of the present invention;

[0031] Figure 5 is Figure 4 a schematic enlarged view of the structural connection at B in

[0032] Figure 6 It is a schematic rear-side view of the structural connection of the docking pipe, the liquid supply pipe and the electrolytic conveying auxiliary component of the present invention;

[0033] Figure 7 It is a schematic view of the structural connection of the arc-shaped gasket and the locking structure of the present invention;

[0034] Figure 8 is Figure 7 a schematic enlarged view of the structural connection at C in

[0035] Figure 9 It is a schematic view of the structural connection of the stabilizing component of the present invention;

[0036] Figure 10It is a schematic diagram of the connection between the temporary control component and the receiving pipe structure of the present invention;

[0037] Figure 11 for Figure 10 The enlarged schematic diagram of the structural connection at D in the middle;

[0038] Figure 12 It is a schematic diagram of the connection between the sealing and regulating plate body and the regulating screw structure of the present invention.

[0039] In the figure: the electrolytic cell body 1 of the raw foil machine, the extension tube 2, the receiving tube 3, the docking tube 4, the opening and closing control valve 41, the upper liquid tube 5, the upper liquid valve 51, the delivery tube 6, the docking plate 701, the positioning slot 702, the arc sealing gasket 703, the positioning block 704, the auxiliary groove 705, the fastening slot 706, the receiving plate 801, the limiting convex body 802, the fastening card strip 803, the stabilizing cover plate 901, the limiting edging 902, the end convex plate 903, the mounting hole 904, the connecting bolt 905, the limiting groove 906, the threaded slot hole 907, the stabilizing extrusion screw 908, the carrying box 1001, the blocking and regulating plate body 1002, the flow regulating slot 1003, the auxiliary bearing 1004, the regulating screw 1005, the sealing plate 1006, the sealing rubber sleeve 1007, and the auxiliary handle 1008. DETAILED DESCRIPTION

[0040] The technical solutions in the embodiments of the present invention are described clearly and completely below. The embodiments of the present invention and all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present invention.

[0041] Example 1: Please refer to Figures 1-12 , a method for preparing a low-resistance and high-tensile-strength copper foil, comprising

[0042] Electrolyte preparation: copper ion concentration 90-100g / L, sulfuric acid concentration 95-105g / L, electrolyte temperature controlled at 52±2℃; the prepared electrolyte is filtered through diatomite, secondary and tertiary filtration, and flows into the raw foil system through the high-level tank;

[0043] Additives: The present invention has developed an additive system composed of 2-mercapto-5-benzimidazolesulfonic acid (2M5S), polyethylene glycol (PEG), sodium polydithiopropanesulfonate (SPS), hydroxyethyl cellulose (HEC), and sodium chloride (chloride ions). In this additive system, 2M5S is a leveling agent, which plays a role in refining crystal grains and enhancing the tensile strength. At the same time, the traditional gelatin protein is removed, reducing the doping of most organic impurities as interstitial atoms in the copper foil crystal. As the interstitial impurities decrease, the hindrance to the current passing through the crystal becomes smaller, the resistance decreases accordingly, and the electrical conductivity of the material is highly improved. Calculated by 1L of electrolyte, the addition amount of 2M5S is 10 - 40mg, the addition amount of PEG is 2 - 5mg, the addition amount of SPS is 3 - 6mg, the addition amount of HEC is 2 - 5mg, and the addition amount of chloride ions is 10 - 30mg;

[0044] Copper foil production system: Add the prepared additives and inject them at a certain flow rate. Then, they enter the high-level tank through the pipeline and are electroplated in the electrolytic cell of the copper foil production machine. Copper foils with a thickness of 4 - 8um can be produced according to different current parameters. Currently, the mainstream high-performance copper foils are 4.5um and 6um;

[0045] Aging treatment: After the traditional copper foil is rolled up, it needs to be annealed at a certain temperature and for a certain time, mainly to accelerate the self-annealing effect of the material itself and eliminate internal stress. However, in the present invention, annealing is not required, and it can be naturally stored for 2 - 3 days. This is mainly because the self-annealing effect is not obvious due to the relatively small amount of organic impurities doped in this additive system;

[0046] Product slitting: The qualified products are slit by a slitter and then packaged and transported.

[0047]

[0048] For 6um copper foil, the unified addition amount of chloride ions is 25mg

[0049]

[0050] For 4.5um copper foil, the unified addition amount of chloride ions is 25mg

[0051] Serial number Ordinary 6um copper foil resistance (Ω) 6um resistance of the product of the present invention (Ω) 1 0.008315 0.005425 2 0.008815 0.005921 3 0.007965 0.006043 4 0.008320 0.005856 5 0.007890 0.005983

[0052] Material resistance comparison data

[0053] Preparation of a copper foil with low resistance and high tensile strength; including the main body 1 of the electrolytic cell of the raw foil machine, the extension pipe 2, the receiving pipe 3, the docking pipe 4, the liquid supply pipe 5, the electrolytic conveying auxiliary component and the temporary regulation component; here, the extension pipes 2 are equidistantly arranged on the outer side wall of the main body 1 of the electrolytic cell of the raw foil machine, and one end of the extension pipe 2 is connected to the docking pipe 4; here, an opening and closing control valve 41 is arranged on the docking pipe 4, and the docking pipes 4 are symmetrically arranged at both ends of the receiving pipe 3; both ends of the liquid supply pipe 5 are respectively connected to the docking pipe 4, and a liquid supply valve 51 is arranged on the liquid supply pipe 5; one end of the docking pipe 4 is connected to one end of the conveying pipe 6.

[0054] Here, the extension pipe 2 and the docking pipe 4 are firmly connected through the electrolytic conveying auxiliary component, the docking pipe 4 and the liquid supply pipe 5 are firmly connected through the electrolytic conveying auxiliary component, and the docking pipe 4 and the conveying pipe 6 are also firmly connected through the electrolytic conveying auxiliary component; that is, two docking pipes 4 are symmetrically arranged at both ends of the receiving pipe 3, and docking plates 701 are symmetrically arranged at both ends of the docking pipe 4, that is, one end of one docking pipe 4 is connected to the extension pipe 2, and the other end of the docking pipe 4 is connected to one end of the liquid supply pipe 5.

[0055] After that, one end of the docking pipe 4 at the other end of the receiving pipe 3 is connected to the liquid supply pipe 5, and the other end of the docking pipe 4 is then connected to the conveying pipe 6.

[0056] Through the coordinated use of the electrolytic conveying auxiliary component with the receiving pipe 3, the docking pipe 4, and the temporary regulation component, when it is necessary to replace and maintain the liquid supply valve 51 on the liquid supply pipe 5, the removal of the liquid supply pipe 5 is made more convenient, and on the basis of convenient disassembly and assembly, the tightness of its connection can also be ensured; through the coordinated use of the docking pipe 4, the opening and closing control valve 41 and the receiving pipe 3, when replacing or disassembling and maintaining the liquid supply valve 51, the liquid conveying work will not be affected, ensuring the continuity of the electrolytic production work, which has a positive effect on improving the electrolytic processing efficiency.

[0057] Embodiment 2: On the basis of Embodiment 1, please refer to Figures 4-12, the electrolytic transfer auxiliary component here includes a docking plate 701, a positioning slot 702, an arc-shaped gasket 703, a positioning block 704, an auxiliary groove 705, a fastening slot 706, a locking structure, and a stabilizing component; the docking plate 701 is fixedly arranged at both ends of the docking pipe 4, and the docking plate 701 is also arranged at both ends of the upper liquid pipe 5. The docking plate 701 is fixedly arranged at one end of the extension pipe 2, and the docking plate 701 is also fixedly arranged at one end of the transfer pipe 6. The outer side wall of the docking plate 701 is symmetrically provided with positioning slots 702. The inner side wall of the arc-shaped gasket 703 is symmetrically and fixedly provided with positioning blocks 704. The outer side of the end of the arc-shaped gasket 703 is provided with an auxiliary groove 705, and a fastening slot 706 is arranged in the auxiliary groove 705; the two arc-shaped gaskets 703 here are docked to form a gasket ring; the positioning blocks 704 and the positioning slots 702 are arranged at corresponding positions and have the same number of sets, and the two are adaptively inserted; the locking structure here includes a bearing plate body 801, a limiting convex body 802, and a fastening strip 803; a limiting convex body 802 is fixedly arranged at the top end of the bearing plate body 801, and fastening strips 803 are symmetrically and fixedly arranged at both ends of the bottom side of the bearing plate body 801.

[0058] The stabilizing component here includes a stabilizing cover plate 901, a limiting edge 902, an end convex plate 903, a mounting hole 904, a connecting bolt 905, a limiting groove 906, a threaded groove hole 907, and a stabilizing extrusion screw 908; the two sides of the stabilizing cover plate 901 are symmetrically and fixedly provided with limiting edges 902, and a threaded groove hole 907 is arranged in the limiting edge 902, and the threaded groove hole 907 is threadedly connected with the stabilizing extrusion screw 908. The two ends of the stabilizing cover plate 901 are symmetrically and fixedly provided with end convex plates 903, and a mounting hole 904 is arranged in the end convex plate 903. The inner side wall of the stabilizing cover plate 901 is provided with a limiting groove 906, and the limiting groove 906 and the limiting convex body 802 on the bearing plate body 801 are arranged at corresponding positions and have the same number of sets; the two stabilizing cover plates 901 form a stabilizing ring cover.

[0059] The temporary regulation component here includes a carrier box 1001, a plugging and regulating plate body 1002, a circulation regulating groove 1003, an auxiliary bearing 1004, a regulating screw 1005, a sealing plate member 1006, a sealing rubber sleeve 1007, and an auxiliary handle 1008; the carrier box 1001 is arranged on the receiving pipe 3 and the two are connected in communication. The plugging and regulating plate body 1002 is inserted into the carrier box 1001. One end of the plugging and regulating plate body 1002 is fixedly connected with the auxiliary bearing 1004 by embedding. The circulation regulating groove 1003 is arranged in the plugging and regulating plate body 1002. The auxiliary bearing 1004 is sleeved on one end of the regulating screw 1005. The regulating screw 1005 penetrates through the sealing plate member 1006. The sealing plate member 1006 is fixedly connected to the box opening of the carrier box 1001 by screws. One end of the regulating screw 1005 is fixedly provided with the auxiliary handle 1008; here, a sealing rubber sleeve 1007 is fixedly arranged on one side of the sealing plate member 1006, and the regulating screw 1005 passes through the sealing rubber sleeve 1007. The circulation regulating groove 1003 is arranged as a cylindrical groove body, and the circulation regulating groove 1003 penetrates through the plugging and regulating plate body 1002, and the circulation regulating groove 1003 is distributed in a triangular shape on the plugging and regulating plate body 1002.

[0060] In this embodiment, for the connection of each pipeline, docking plates 701 are arranged at the pipe orifice positions of the pipelines. Then, at the positions to be connected, the two docking plates 701 are docked. At the same time, the arc-shaped sealing gasket 703 is closely attached to the gap position where the docking plates 701 are docked. At the same time, the positioning blocks 704 arranged on the inner side wall of the arc-shaped sealing gasket 703 are stuck in the positioning slots 702 on the side wall of the docking plate 701. At this time, the two ends of the two arc-shaped sealing gaskets 703 are in contact respectively, forming a sealing gasket ring; then, the fastening strips 803 at both ends of the bottom side of the receiving plate body 801 are inserted into the fastening slots 706 on the auxiliary grooves 705, and the receiving plate body 801 is pressed. Here, the inner sides of the fastening strips 803 are inclined. The purpose is that when the receiving plate body 801 is pressed, the fastening strips 803 squeeze the side wall of the notch of the fastening slot 706, which helps the ends of the two arc-shaped sealing gaskets 703 to be in close contact. Then, the stable cover plate 901 is stuck on the sealing gasket ring. Here, the limiting groove 906 inside the stable cover plate 901 is stuck on the limiting convex body 802 on the receiving plate body 801. Finally, the two ends of the two stable cover plates 901 are stably connected by connecting bolts 905, and the stable pressing screws 908 connected to the limiting edge 902 are tightened, which has a pressing effect on one of the docking plates 701, further improving the connection stability and sealing performance of the two docking plates 701.

[0061] When it is necessary to disassemble the upper liquid pipe 5 and the upper liquid valve 51, the fixed connections at both ends of the upper liquid pipe 5 can be released to remove it. However, before that, the opening and closing control valve 41 provided on the docking pipe 4 needs to be closed. The liquid to be transported flows from the transport pipe 6 to the docking pipe 4 at one end of the receiving pipe 3, then passes through the receiving pipe 3 to the docking pipe 4 at the other end of the receiving pipe 3, and finally enters the electrolytic cell body 1 of the copper foil machine through the extension pipe 2; this can avoid affecting the normal progress of the electrolysis work due to the maintenance and replacement of the upper liquid valve 51. And through the coordinated use of the plugging and regulating plate body 1002, the flow regulating groove 1003 and the regulating screw 1005, the flow of the liquid can be correspondingly regulated to play a temporary regulating role.

[0062] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A device for preparing low-resistance and high-tensile-strength copper foil, characterized in that: The invention comprises an electrolytic cell body (1) of a foil machine, an extension pipe (2), a receiving pipe (3), a butt pipe (4), an upper liquid pipe (5), an electrolytic transport auxiliary component and a temporary control component; Extension tubes (2) are equidistantly arranged on the outer side wall of the electrolytic cell body (1) of the foil machine, and one end of the extension tube (2) is connected to a butt joint tube (4); The butt-joint pipe (4) is provided with an opening and closing control valve (41), and the butt-joint pipe (4) is symmetrically arranged at both ends of the receiving pipe (3); Both ends of the upper liquid pipe (5) are respectively connected to the butt joint pipe (4), and a liquid upper valve (51) is provided on the upper liquid pipe (5); the butt joint pipe (4) is connected to one end of the delivery pipe (6).

2. The device for preparing a low-resistance and high-tensile-strength copper foil according to claim 1, characterized in that: The extension tube (2) and the butt joint tube (4) are firmly connected via an electrolysis transport auxiliary component, the butt joint tube (4) and the upper liquid tube (5) are firmly connected via an electrolysis transport auxiliary component, and the butt joint tube (4) and the transport tube (6) are also firmly connected via an electrolysis transport auxiliary component.

3. The device for preparing a low-resistance and high-tensile-strength copper foil according to claim 1, characterized in that: The electrolysis transport auxiliary component comprises a docking plate (701), a positioning slot (702), an arc-shaped sealing gasket (703), a positioning block (704), an auxiliary groove (705), a fastening slot (706), a locking structure and a stabilizing component; the docking plate (701) is fixedly arranged at both ends of the docking tube (4), and the docking plate (701) is also arranged at both ends of the upper liquid tube (5); the docking plate (701) is fixedly arranged at one end of the extension tube (2), and the docking plate (701) is also fixedly arranged at one end of the transport tube (6); the outer side wall of the docking plate (701) is symmetrically provided with a positioning slot (702); the inner side wall of the arc-shaped sealing gasket (703) is symmetrically fixedly provided with a positioning block (704); the outer side of the end of the arc-shaped sealing gasket (703) is provided with an auxiliary groove (705), and the fastening slot (706) is arranged in the auxiliary groove (705).

4. The device for preparing a low-resistance and high-tensile-strength copper foil according to claim 3, characterized in that: The arc-shaped sealing pads (703) of the two are butted together to form a sealing pad ring; the positioning block (704) and the positioning slot (702) are arranged at corresponding positions and have the same number of groups, and the two are adapted to be plugged in.

5. The device for preparing a low-resistance and high-tensile-strength copper foil according to claim 3, characterized in that: The locking structure comprises a receiving plate body (801), a limiting convex body (802) and a fastening clip (803); the limiting convex body (802) is fixedly arranged at the top of the receiving plate body (801), and the fastening clips (803) are symmetrically fixedly arranged at both ends of the bottom side of the receiving plate body (801); the inner side of the fastening clip (803) is inclined.

6. The device for preparing a low-resistance and high-tensile-strength copper foil according to claim 3, characterized in that: The stabilizing component comprises a stabilizing cover plate (901), a limiting edging (902), an end convex plate (903), a mounting hole (904), a connecting bolt (905), a limiting groove (906), a threaded slot hole (907) and a stabilizing extrusion screw (908); the limiting edging (902) is symmetrically fixedly arranged on both sides of the stabilizing cover plate (901), and the limiting edging (902) is provided with a threaded slot hole (907), and the threaded slot hole (907) and the stabilizing extrusion screw (908) are connected to each other. 908) are threadedly connected, and end protrusions (903) are symmetrically fixed at both ends of the stabilizing cover plate (901), and mounting holes (904) are arranged in the end protrusions (903). The inner side wall of the stabilizing cover plate (901) is provided with limiting grooves (906), and the limiting grooves (906) are arranged at corresponding positions to the limiting protrusions (802) on the receiving plate body (801) and are arranged in the same number of groups; the two stabilizing cover plates (901) form a stabilizing ring cover.

7. The device for preparing a low-resistance and high-tensile-strength copper foil according to claim 1, characterized in that: The temporary control component comprises a carrying box (1001), a blocking control plate (1002), a flow control groove (1003), an auxiliary bearing (1004), a control screw (1005), a sealing plate (1006), a sealing rubber sleeve (1007) and an auxiliary handle (1008); the carrying box (1001) is arranged on the receiving tube (3), and the two are connected, the carrying box (1001) is plugged with a blocking control plate (1002), and the blocking control plate (1002) An auxiliary bearing (1004) is embedded and fixedly arranged at one end of the sealing and regulating plate (1002), a flow regulating groove (1003) is arranged in the sealing and regulating plate body (1002), the auxiliary bearing (1004) is sleeved and arranged at one end of the regulating screw (1005), the regulating screw (1005) is penetrated and arranged in the sealing plate (1006), the sealing plate (1006) is fixedly connected to the box opening of the carrier box (1001) by screws, and an auxiliary handle (1008) is fixedly arranged at one end of the regulating screw (1005).

8. The device for preparing a low-resistance and high-tensile-strength copper foil according to claim 7, characterized in that: A sealing rubber sleeve (1007) is fixedly provided on one side of the sealing plate (1006), and the regulating screw (1005) passes through the sealing rubber sleeve (1007); the flow regulating groove (1003) is provided as a columnar groove body, and the flow regulating groove (1003) is provided through the sealing regulating plate body (1002), and the flow regulating groove (1003) is distributed in a triangular shape on the sealing regulating plate body (1002).

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