Apparatus and method for plasma spraying of double-sided metal electrodes

Abstract

The application relates to the technical field of plasma spraying, in particular to a device and method for preparing double-sided metal electrodes through plasma spraying. The device comprises a spraying workbench for laying flexible fabric, a lifting mechanism comprising a first-stage lifting mechanism and a second-stage lifting mechanism arranged at the output end of the first-stage lifting mechanism, an electrode adjusting mechanism connected with the second-stage lifting mechanism and used for limiting the width and spacing of the electrode, and a turnover mechanism connected with the first-stage lifting mechanism and used for clamping and turning over the flexible fabric. In the application, the spraying workbench can be used as a basic support platform, the lifting mechanism adopts a first-stage and second-stage composite lifting mode, the electrode adjusting mechanism and the turnover mechanism can be lifted in stages, the laying and flattening of the fabric are facilitated, the subsequent turnover and secondary positioning are facilitated, and the flexibility and adaptability of operation are improved, and the turnover mechanism can realize the turnover and positioning of the fabric, and the mispositioning and damage problems caused by traditional manual turnover are avoided.

Description

Technical Field

[0001] This invention relates to the field of plasma spraying technology, and specifically to an apparatus and method for preparing double-sided metal electrodes by plasma spraying. Background Technology

[0002] In existing technologies, the fabrication of metal electrodes on flexible fabric substrates (such as montmorillonite fiberglass fabric) typically employs customized metal masking fixtures. Specifically, a masking template is first formed by laser-cutting a metal plate according to the desired electrode pattern (including spacing, width, and length). This template is then placed over the fabric surface, followed by plasma spraying. Metal is deposited in the unmasked areas to form the electrodes.

[0003] However, this method requires the fabrication of a new metal shielding plate every time the electrode specifications are changed, which is costly and inconvenient to store. In addition, when preparing double-sided electrodes, the fabric needs to be manually flipped and repositioned, making it difficult to guarantee the alignment accuracy of the two electrodes. Summary of the Invention

[0004] In view of this, the present invention provides an apparatus and method for preparing double-sided metal electrodes by plasma spraying, so as to solve the above problems.

[0005] In a first aspect, the present invention provides an apparatus for preparing double-sided metal electrodes by plasma spraying, comprising: a spraying worktable for laying flexible fabric; two lifting mechanisms respectively disposed at both ends of the spraying worktable, the lifting mechanisms including a primary lifting mechanism and a secondary lifting mechanism disposed at the output end of the primary lifting mechanism; an electrode adjustment mechanism connected to the secondary lifting mechanism, including at least two sets of adjustable-gap shielding fixtures for limiting the width and spacing of the electrodes; and a flipping mechanism connected to the primary lifting mechanism for clamping and flipping the flexible fabric, wherein the shielding fixtures are symmetrically arranged about the flipping mechanism.

[0006] In this application, the spraying workbench serves as a basic support platform. The lifting mechanism employs a combined single-stage and two-stage lifting method, allowing the electrode adjustment mechanism and the flipping mechanism to be raised and lowered in stages. This facilitates the laying and flattening of the fabric and also aids in subsequent flipping and secondary positioning, enhancing operational flexibility and adaptability. The electrode adjustment mechanism, through adjustable-spacing shielding fixtures, enables flexible setting of electrode width and spacing, meeting the fabrication needs of multiple electrode specifications. Its symmetrical arrangement on both sides of the flipping mechanism ensures the alignment accuracy of the double-sided electrodes. The flipping mechanism achieves fabric flipping and positioning, avoiding the misalignment and damage problems caused by traditional manual flipping. This application is suitable for the large-scale fabrication of long-length, multi-specification electrodes and has promising engineering application prospects.

[0007] In one optional embodiment, the spraying workbench is provided with a groove, the groove being provided along the extending direction of a first side of the spraying workbench, wherein the extending direction of the first side of the spraying workbench is parallel to the extending direction of the masking fixture.

[0008] In this application, the groove can cooperate with a flipping mechanism to flip the flexible fabric.

[0009] In one optional embodiment, both the primary lifting mechanism and the secondary lifting mechanism are raised and lowered under the action of the driving component, and the lifting direction is perpendicular to the surface of the spraying workbench.

[0010] In this application, the vertical lifting motion ensures that the electrode adjustment mechanism and the flipping mechanism remain parallel to the spraying worktable during the lifting process, avoiding problems such as fabric wrinkles, incomplete masking, or alignment deviations caused by tilting or offset. The coordinated operation of the two-stage lifting mechanism enables height control of the flexible fabric at different process stages, which is beneficial for fabric flattening and positioning, as well as subsequent flipping and secondary pressing operations. Both the primary and secondary lifting mechanisms are driven by drive components, which reduces manual labor and is suitable for the preparation of long-length, multi-specification metal electrodes.

[0011] In one optional embodiment, the output end of the primary lifting mechanism has a tilting mechanism mounting plate, the secondary lifting mechanism is disposed on the tilting mechanism mounting plate, and the output end of the secondary lifting mechanism has an electrode adjustment mechanism mounting plate.

[0012] The flipping mechanism mounting plate has a first plate surface and a second plate surface. The first plate surface is connected to the output end of the primary lifting mechanism, and the second plate surface is fixedly disposed on the end side of the first plate surface. The first plate surface is parallel to the surface of the spraying workbench, and the second plate surface is perpendicular to the first plate surface and located on the side of the first plate surface away from the primary lifting mechanism.

[0013] The electrode adjustment mechanism mounting plate is located on the side of the first plate away from the first-stage lifting mechanism, and on the side of the second plate.

[0014] In this application, a first plate is connected to a primary lifting mechanism, and a second plate extends vertically to form a stable support. The electrode adjustment mechanism mounting plate is located to the side of the second plate, enabling the electrode adjustment mechanism and the flipping mechanism to move in tandem during lifting and lowering. This ensures that the electrode adjustment mechanism and the flipping mechanism maintain their relative positional relationship during lifting and lowering, avoiding fabric pulling or tooling interference caused by misalignment. The first plate is parallel to the worktable, and the second plate is arranged vertically, providing a natural rotation axis for the flipping mechanism and improving the smoothness of the flipping action. The coordinated work of the electrode adjustment mechanism mounting plate and the flipping mechanism mounting plate enables height control of the electrode adjustment mechanism and the flipping mechanism at different process stages.

[0015] In one optional embodiment, the lifting mechanism further includes:

[0016] A guiding mechanism, connected to the electrode adjustment mechanism, is adapted to guide the electrode adjustment mechanism during the lifting and lowering process.

[0017] In this application, the guiding mechanism provides stable guidance during the lifting process, preventing swaying or deviation that may occur in the electrode adjustment mechanism during long-stroke lifting, ensuring the parallelism and fit between the shielding fixture and the worktable, thereby guaranteeing the clarity and consistency of the electrode pattern. The guiding mechanism also enhances the rigidity and stability of the electrode adjustment mechanism, especially in applications with large-size, long-span fixtures, enhancing resistance to off-center loads and positional accuracy.

[0018] In one optional embodiment, the electrode adjustment mechanism includes:

[0019] Two guide rails are laid at both ends of the spraying worktable along the extension direction of the second side of the spraying worktable and located at the outer edge of the spraying worktable. The guide rails are respectively connected to the electrode adjustment mechanism mounting plate and the guide mechanism. The second side of the spraying worktable is perpendicular to the first side of the spraying worktable.

[0020] A slider is mounted on the guide rail, and both ends of the shielding fixture are slidably connected to the two guide rails via the slider.

[0021] In this application, the sliding cooperation between the guide rail and the slider enables continuous adjustment of the spacing of the shielding fixture, meeting the process requirements of different electrode widths and spacings. The guide rail is arranged perpendicular to the length direction of the shielding fixture, providing a stable support and guiding foundation for the fixture and ensuring the positional accuracy and repeatability of the shielding fixture during adjustment and fixing. As a component for electrode forming, the length and arrangement of the shielding fixture directly determine the size and layout of the electrodes; this application gives it good adaptability and expandability.

[0022] In one optional embodiment, the masking fixture is a steel profile and has a first electromagnet inside. When energized, the masking fixture is adapted to adhere to the spraying worktable to fix and press the flexible fabric.

[0023] In this application, electromagnetic adsorption is used to achieve the pressing and releasing of the masking fixture and the spraying worktable. When the electromagnet is energized, it generates strong magnetism, causing the masking fixture, flexible fabric, and spraying worktable to fit tightly together, effectively preventing plasma flame from seeping into the gaps and ensuring clear electrode edges free from oxidation contamination. The steel structure combines lightweight and high strength, and is not prone to bending when heated from one side, making it suitable for the use of long fixtures.

[0024] In one alternative embodiment, the slider is provided with a locking bolt, which is suitable for fixing the slider to the guide rail.

[0025] In this application, the slider position is reliably fixed mechanically to prevent tooling displacement due to vibration or external force during spraying, thus ensuring the stability of electrode dimensions and spacing. The locking bolt is easy to operate and the locking force is adjustable, balancing the flexibility of adjustment with the reliability of fixation.

[0026] In one optional implementation, the flipping mechanism includes:

[0027] There are two support bases, which are connected to the end sides of the second plate and are located at both ends of the groove;

[0028] The clamping plate includes a first clamping plate and a second clamping plate, which are adapted to the groove. The first clamping plate is rotatably mounted on the support base, and both the first clamping plate and the second clamping plate are provided with a second electromagnet, which is suitable for linking the first clamping plate and the second clamping plate when energized.

[0029] The shielding fixture is symmetrically arranged about the clamping plate.

[0030] In this application, the flexible fabric can be flipped by rotating the first clamping plate. The support base is connected to the primary lifting mechanism, which allows the clamping plates to be raised and lowered. After flipping, either the first or second clamping plate can be accommodated in the groove, achieving precise positioning of the fabric during the flipping process. This ensures the alignment accuracy and consistency of the double-sided electrodes.

[0031] In one alternative embodiment, when the first clamping plate or the second clamping plate abuts against the bottom end of the groove, the surface of the first clamping plate or the second clamping plate is flush with the surface of the spraying workbench.

[0032] In this application, the fit between the clamp and the groove facilitates the laying and flattening of the flexible fabric, avoiding fabric wrinkles or displacement caused by height differences.

[0033] In one optional embodiment, the side wall of the first clamping plate is provided with a guide plate, the inner side of the guide plate is provided with a guide groove, and the side wall of the second clamping plate is provided with a protrusion, the protrusion being slidably disposed in the guide groove.

[0034] In this application, the cooperation between the guide groove and the protrusion can guide and center the first and second clamping plates during the clamping process, prevent the clamping plates from being misaligned or skewed, ensure that the flexible fabric is evenly clamped and does not twist or stretch, and further ensure the positional accuracy and repeatability of the double-sided electrode.

[0035] Secondly, the present invention also provides a method for preparing a double-sided metal electrode by plasma spraying, applicable to the apparatus for preparing a double-sided metal electrode by plasma spraying as described above, comprising the following steps:

[0036] S1. Place the second clamping plate in the groove;

[0037] S2, an upward lifting mechanism, and an electrode adjustment mechanism to adjust the electrode width and spacing;

[0038] S3. Lay the flexible fabric on the spraying workbench and flatten it;

[0039] S4. Lower the lifting mechanism by one level until the shielding fixture and the first clamping plate are pressed onto the flexible fabric. Then, energize the first and second electromagnets to press and fix the flexible fabric.

[0040] S5. Perform plasma spraying to form metal electrodes in the exposed areas between the masking fixtures;

[0041] S6. De-energize the first electromagnet, and raise the first-level lifting mechanism and the second-level lifting mechanism in sequence until the shielding fixture separates from the flexible fabric and the second clamping plate separates from the groove. Then, flip the flexible fabric over through the flipping mechanism.

[0042] S7. The first-level lifting mechanism and the second-level lifting mechanism are lowered in sequence until the shielding fixture is pressed onto the flexible fabric and the first clamping plate is set in the groove. The first electromagnet is energized to press and fix the flexible fabric.

[0043] S8. Perform plasma spraying to form a metal electrode on the other side of the flexible fabric;

[0044] S9, lifting and lowering mechanism, and removing the flexible fabric.

[0045] In this application, a step-by-step operation enables fully automated and precision-controlled flexible fabric spraying. In existing technologies, manual operation is inefficient and prone to errors. This application, however, utilizes lifting, adjustment, spraying, and flipping steps, with electromagnets controlling clamping and release to prevent fabric damage. Flipping flattens the fabric before and after operation, preventing wrinkles. Multi-stage lifting facilitates intermediate inspection and quality control. This application improves production efficiency, product consistency, and yield, and is suitable for large-scale long-size electrode fabrication. Attached Figure Description

[0046] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0047] Figure 1 This is a schematic diagram of the structure of an embodiment of the present invention;

[0048] Figure 2 This is a partial structural diagram of an embodiment of the present invention;

[0049] Figure 3 This is a schematic diagram of the spraying workbench structure according to an embodiment of the present invention;

[0050] Figure 4 This is a schematic diagram of the lifting mechanism structure according to an embodiment of the present invention;

[0051] Figure 5 This is a schematic diagram of the electrode adjustment mechanism according to an embodiment of the present invention;

[0052] Figure 6 This is a schematic diagram of the flipping mechanism structure according to an embodiment of the present invention;

[0053] Figure 7 This is a schematic diagram illustrating the principle of an embodiment of the present invention.

[0054] Explanation of reference numerals in the attached figures:

[0055] 10. Spray painting workbench; 11. Bracket; 12. Carbon steel plate; 13. Support plate; 14. Groove; 20. Lifting mechanism; 21. Lifting mechanism mounting frame; 22. Guide mechanism; 30. First-stage lifting mechanism; 31. Tilting mechanism mounting plate; 311. First plate surface; 312. Second plate surface; 40. Second-stage lifting mechanism; 41. Electrode adjustment mechanism mounting plate; 50. Electrode adjustment mechanism; 51. Guide rail; 52. Scale; 53. Slider; 54. Locking bolt; 55. Masking plate; 56. Masking fixture; 60. Tilting mechanism; 61. Support base; 62. First clamping plate; 63. Second clamping plate; 64. Guide plate; 65. Guide groove; 66. Protrusion; 67. Rotating shaft; 68. Positioning hole; 69. Locking pin. Detailed Implementation

[0056] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0057] Flexible fabrics, such as graphene-coated fiberglass substrates, are glass fiber fabrics with graphene deposited on their surface using a CVD process. They possess excellent electrothermal properties and are widely used in aerospace, automotive manufacturing, wind power generation, and smart home appliances. A metal coating of a certain thickness is prepared on the surface of the graphene-coated fiberglass fabric using a plasma spraying process to serve as a flexible conductive electrode. This fully utilizes the flexibility and electrothermal properties of the graphene-coated fiberglass fabric and is a crucial process step in the electrothermal application of graphene-coated fiberglass.

[0058] Common masking methods used in plasma spraying include:

[0059] 1. Applying masking putty or masking tape. This method is suitable for ceramic and metal materials with a certain surface strength. However, since the masking putty and masking tape are glass fiber fabric products, they have a certain degree of stickiness. If they are applied to the fabric surface and then peeled off, they can easily cause damage to the fabric and leave masking material residue, which seriously affects the electric heating performance of the material's heating zone.

[0060] 2. Using custom-made perforated metal sheets for shielding. This shielding method, due to its single-sided heating, is prone to bending and deformation, creating gaps between the sheet and the fiberglass fabric, leading to decreased precision and product contamination.

[0061] For the second method of metal sheet masking, existing technology uses a laser cutting machine to cut the metal sheet, cuts out the electrode spraying position, and then uses this as a masking fixture to cover the montmorillonite fiberglass fabric for spraying, ultimately achieving the preparation of the metal electrode coating. When preparing double-sided electrodes, the montmorillonite fiberglass fabric that has been sprayed on one side needs to be flipped over and laid out, and then covered with the masking fixture again for spraying.

[0062] Furthermore, existing metal sheet shielding fixtures are custom-made based on electrode spacing, width, and length, and can only be used to prepare electrodes of specific sizes, resulting in high manufacturing and storage costs. The metal sheet shielding fixtures are also heavy, making it difficult to operate fixtures exceeding 1.2 meters in length manually, thus limiting electrode preparation length. Long-term exposure to metal thermal stress and continuous copper coating deposition on the surface of the shielding fixture will cause deformation, affecting its accuracy. When spraying double-sided electrodes, manual flipping of the material for secondary positioning also affects the alignment accuracy of the two electrodes due to the lack of a positioning device. During the spraying process, the fixture, the PVC fiberglass fabric, and the spraying table must be in close contact to prevent the spraying flame from passing through gaps, which could cause product contamination and electrode oxidation and discoloration.

[0063] The present invention aims to achieve electrode size adjustment and rapid clamping, positioning and flipping on the surface of flexible fabric (such as montmorillonite fiberglass fabric), and finally realize electrode preparation in the range of length 0-6000mm, width 3mm-30mm and spacing 120mm-1200mm on the surface of flexible fabric.

[0064] The following is combined with Figures 1 to 6 The following describes embodiments of the present invention.

[0065] Example 1

[0066] like Figures 1 to 6 As shown, the present invention provides an apparatus for preparing double-sided metal electrodes by plasma spraying, comprising: a spraying worktable 10 for laying flexible fabric.

[0067] The lifting mechanism 20 consists of two sets, which are respectively set at both ends of the spraying workbench 10. The lifting mechanism 20 includes a primary lifting mechanism 30 and a secondary lifting mechanism 40 set at the output end of the primary lifting mechanism 30.

[0068] An electrode adjustment mechanism 50, connected to the secondary lifting mechanism 40, includes at least two sets of adjustable-gap shielding fixtures 56 for defining the width and spacing of the electrodes. A flipping mechanism 60, connected to the primary lifting mechanism 30, is used to clamp and flip the flexible fabric, wherein the shielding fixtures 56 are symmetrically arranged about the flipping mechanism 60. The primary lifting mechanism 30 can drive the electrode adjustment mechanism 50, the flipping mechanism 60, and the secondary lifting mechanism 40 to rise and fall together, and the secondary lifting mechanism 40 can drive the electrode adjustment mechanism 50 to rise and fall.

[0069] In this application, the spraying workbench 10 serves as a basic support platform. The lifting mechanism 20 employs a combined primary and secondary lifting method, allowing the electrode adjustment mechanism 50 and the flipping mechanism 60 to be raised and lowered in stages. This facilitates the laying and flattening of the fabric, as well as subsequent flipping and secondary positioning, enhancing operational flexibility and adaptability. The electrode adjustment mechanism 50, through the adjustable-spacing shielding fixture 56, enables flexible setting of electrode width and spacing, meeting the fabrication requirements of multiple electrode specifications. Simultaneously, its symmetrical arrangement on both sides of the flipping mechanism 60 ensures the alignment accuracy of the double-sided electrodes. The flipping mechanism 60 achieves fabric flipping and positioning, avoiding the misalignment and damage problems caused by traditional manual flipping. This application is suitable for the large-scale fabrication of long-size, multi-specification electrodes and has promising engineering application prospects.

[0070] It should be noted that a spraying device is also included, which is used to perform plasma spraying in the gap between the masking fixtures 56 to form at least two metal electrodes, which may be copper electrodes.

[0071] In one optional embodiment, the surface of the spraying workbench 10 can be rectangular, mounted on a support 11, and the lifting mechanism 20 is connected to the end of the support 11. The support 11 includes a carbon steel plate 12 with a length of 6100mm, a width of 1300mm, and a thickness of 10mm. Two support plates 13 with a length of 6100mm can be laid on top of the carbon steel plate 12, with a gap between the two support plates 13. The surface of the support plate 13 can serve as the table surface of the spraying workbench 10. To prevent gaps from appearing between the table surface and the epoxy fiberglass fabric and the masking fixture 56 due to assembly precision issues, the table surface is milled as a whole using a large milling machine after the workbench is assembled to ensure the flatness of the workbench surface. The gap between the two support plates 13 can serve as a groove 14 for accommodating the clamping plate of the flipping mechanism 60.

[0072] Optionally, the groove 14 is provided along the extension direction of the first side of the spraying worktable 10, wherein the extension direction of the first side of the spraying worktable 10 is parallel to the extension direction of the masking fixture 56.

[0073] In this application, the groove 14 can cooperate with the flipping mechanism 60 to flip the flexible fabric and position the flipping mechanism 60.

[0074] The groove 14 can be a through groove. The cross-sectional shape of the groove 14 can be triangular, rectangular, or trapezoidal or other polygonal. The cross-sectional shape of the clamping plate of the flipping mechanism 60 is adapted to the cross-sectional shape of the groove 14, and the clamping plate can move upward and disengage from the groove 14. The clamping plate of the flipping mechanism 60 can also be guided so that the clamping plate is quickly positioned in the groove 14.

[0075] In one optional embodiment, the lifting mechanism 20 can be two sets, respectively disposed at both ends of the spraying workbench 10. Each lifting mechanism 20 includes a lifting mechanism mounting frame 21 mounted on a support 11, a primary lifting mechanism 30 mounted on the mounting frame 21, and a secondary lifting mechanism 40 disposed at the output end of the primary lifting mechanism 30. There can be two lifting mechanism mounting frames 21, respectively disposed on both sides of the support 11 along the extension direction of the first side. The primary lifting mechanism 30 can be a screw lifting mechanism, in which case the output end of the screw lifting mechanism can be rotatably connected to the first plate surface 311. The secondary lifting mechanism 40 can be a lifting cylinder. The primary lifting mechanism 30 and the secondary lifting mechanism 40 can be connected to a controller, which can control the extension and retraction of the primary lifting mechanism 30 and the secondary lifting mechanism 40 to achieve lifting and lowering functions. On the surface of the spraying workbench 10, the second side of the spraying workbench 10 is perpendicular to the first side of the spraying workbench 10.

[0076] Alternatively, the primary lifting mechanism 30 can move along the second side extension direction of the spraying worktable 10 and in a direction perpendicular to the surface of the spraying worktable 10. For example, a first telescopic cylinder that extends and retracts along the second side extension direction is provided on the bracket 11, a connecting plate is provided at the output end of the first telescopic cylinder, and a second telescopic cylinder that extends and retracts in a direction perpendicular to the surface of the spraying worktable 10 is provided on the connecting plate. The primary lifting mechanism 30 can be located at the output end of the second telescopic cylinder. By adjusting the primary lifting mechanism 30 in the second side extension direction and in a direction perpendicular to the surface of the spraying worktable 10, the cumulative errors that may occur from long-term use of the lifting mechanism and electrode adjustment mechanism 50 can be compensated, or the position of the electrode pattern relative to the edge of the fabric can be actively adjusted, thereby enhancing the adjustment capability and long-term accuracy of this application.

[0077] In one optional embodiment, both the primary lifting mechanism 30 and the secondary lifting mechanism 40 are raised and lowered under the action of a driving component, and the lifting direction is perpendicular to the surface of the spraying workbench 10. The driving component can be a drive motor or a cylinder.

[0078] In this application, the vertical lifting motion ensures that the electrode adjustment mechanism 50 and the flipping mechanism 60 remain parallel to the spraying table 10 during the lifting process, avoiding fabric wrinkles, incomplete masking, or alignment deviations caused by tilting or offset. The coordinated operation of the two-stage lifting mechanisms enables height control of the flexible fabric at different process stages, which is beneficial for flattening and positioning the flexible fabric, as well as facilitating subsequent flipping and secondary pressing operations. Both the primary lifting mechanism 30 and the secondary lifting mechanism 40 are driven by drive components, reducing manual labor and making them suitable for the preparation of long-sized, multi-specification metal electrodes.

[0079] In one optional embodiment, the output end of the primary lifting mechanism 30 has a flipping mechanism mounting plate 31, the secondary lifting mechanism 40 is disposed on the flipping mechanism mounting plate 31, and the output end of the secondary lifting mechanism 40 has an electrode adjustment mechanism mounting plate 41.

[0080] The flipping mechanism mounting plate 31 has a first plate surface 311 and a second plate surface 312. The first plate surface 311 is connected to the output end of the first-stage lifting mechanism 30, and the second plate surface 312 is fixedly disposed on the end side of the first plate surface 311. The first plate surface 311 is parallel to the surface of the spraying workbench 10, and the second plate surface 312 is perpendicular to the first plate surface 311 and perpendicular to the first side extension direction of the spraying workbench 10, and is located on the side of the first plate surface 311 away from the first-stage lifting mechanism 30.

[0081] The electrode adjustment mechanism mounting plate 41 is located on the side of the first plate surface 311 away from the first-stage lifting mechanism 30, and on the side of the second plate surface 312. The two second plate surfaces 312 of the two flipping mechanism mounting plates 31 are located inside the two electrode adjustment mechanism mounting plates 41.

[0082] In this application, the first plate surface 311 is connected to the primary lifting mechanism 30, and the second plate surface 312 extends vertically to form a stable support. The electrode adjustment mechanism mounting plate 41 is located to the side of the second plate surface 312, enabling the electrode adjustment mechanism 50 and the flipping mechanism 60 to move in tandem during lifting. This ensures that the electrode adjustment mechanism 50 and the flipping mechanism 60 maintain a relative positional relationship during lifting, avoiding fabric pulling or tooling interference caused by misalignment. The first plate surface 311 is parallel to the worktable, and the second plate surface 312 is arranged vertically, providing a natural rotation axis for the flipping mechanism 60 and improving the smoothness of the flipping action. The coordinated work of the electrode adjustment mechanism mounting plate 41 and the flipping mechanism mounting plate 31 enables height control of the electrode adjustment mechanism 50 and the flipping mechanism 60 at different process stages.

[0083] In one optional embodiment, the lifting mechanism 20 further includes:

[0084] A guide mechanism 22, with one end connected to the lifting mechanism mounting frame 21 and the other end connected to the electrode adjustment mechanism 50, is adapted to guide the electrode adjustment mechanism 50 during lifting. The guide mechanism 22 can be a telescopic rod, with one end connected to the lifting mechanism mounting frame 21 and the other end having a connecting block that can be connected to the electrode adjustment mechanism 50. Furthermore, the telescopic rod can be hinged to the connecting block. The telescopic direction of the telescopic rod is perpendicular to the surface of the spraying worktable 10. There can be two guide mechanisms 22, respectively located on both sides of the primary lifting mechanism 30.

[0085] In this application, the guide mechanism 22 provides stable guidance during the lifting process, preventing the electrode adjustment mechanism 50 from swaying or shifting during long-stroke lifting, ensuring the parallelism and fit between the shielding fixture 56 and the worktable surface, thereby guaranteeing the clarity and consistency of the electrode pattern. The guide mechanism 22 also enhances the rigidity and stability of the electrode adjustment mechanism 50, especially in large-size, long-span fixture applications, enhancing its resistance to off-center loads and positional accuracy.

[0086] In one optional embodiment, the electrode adjustment mechanism 50 includes:

[0087] Two guide rails 51 are laid at both ends of the spraying worktable 10 along the extension direction of the second side of the spraying worktable 10 and located at the outer edge of the spraying worktable 10. The guide rails 51 are connected to the electrode adjustment mechanism mounting plate 41 and the guide mechanism 22 respectively. On the surface of the spraying worktable 10, the second side of the spraying worktable 10 is perpendicular to the first side of the spraying worktable 10. A scale 52 may be provided on the guide rails 51 to mark the position of the masking fixture 56 and the width of the electrode.

[0088] Alternatively, the positioning of the electrode adjustment mechanism 50 can be achieved through a laser ranging or visual positioning system. The camera in the visual positioning system or the laser sensor in the laser ranging system can provide real-time feedback on the position of the masking fixture 56, and the controller performs closed-loop control based on the position of the masking fixture 56. This eliminates errors from human readings and enables digital positioning. The visual positioning system can also be used to calibrate and compensate for mechanical errors that may occur during long-term use, improving the long-term stability and accuracy of the system.

[0089] A slider 53 is mounted on the guide rail 51. Both ends of the masking fixture 56 are slidably connected to the guide rail 51 via the slider 53. In this application, the masking fixture 56 can be in two sets, each set including two masking plates. The gap between the two masking plates forms the coating area for the electrode. Each masking plate is 6100mm long. Both ends of the masking fixture 56 are slidably connected to the guide rail 51 via the slider 53.

[0090] In this application, the sliding engagement of the guide rail 51 and the slider 53 enables continuous adjustment of the spacing of the shielding fixture 56, meeting the process requirements of different electrode widths and spacings. The arrangement direction of the guide rail 51 is perpendicular to the length direction of the shielding fixture 56, providing a stable support and guiding foundation for the shielding fixture 56, ensuring the positional accuracy and repeatability of the shielding fixture 56 during adjustment and fixing. As a component for electrode forming, the length and arrangement of the shielding fixture 56 directly determine the size and layout of the electrodes; this application gives it good adaptability and expandability.

[0091] In one optional embodiment, the masking fixture 56 is a steel section and has a first electromagnet inside. When energized, the masking fixture 56 is adapted to adhere to the spraying worktable 10 to press and fix the flexible fabric. The masking fixture 56 can be a rectangular steel section. When the masking fixture 56 presses the flexible fabric onto the spraying worktable 10, energizing the first electromagnet allows the masking fixture 56, the flexible fabric, and the spraying worktable 10 to adhere tightly, preventing gaps between the masking fixture 56 and the flexible fabric, and between the flexible fabric and the spraying worktable 10. It should be noted that during the spraying process, the masking fixture 56 may deform due to heat on one side, causing gaps between the masking fixture 56 and the flexible fabric, and between the flexible fabric and the spraying worktable 10. When the first electromagnet is energized, a magnetic force is generated between the masking fixture 56 and the spraying worktable 10, thereby correcting the gaps caused by heat on one side of the masking fixture 56.

[0092] In this application, electromagnetic adsorption is used to achieve the pressing and releasing of the masking fixture 56 and the spraying worktable 10. When the first electromagnet is energized, it generates strong magnetism, causing the masking fixture 56, the flexible fabric, and the spraying worktable 10 to adhere tightly, effectively preventing plasma flame from seeping into the gaps and ensuring clear electrode edges free from oxidation contamination. The steel structure combines lightweight and high strength, and is not prone to bending when heated on one side, making it suitable for the use of long fixtures.

[0093] In one optional embodiment, the slider 53 is provided with a locking bolt 54, suitable for fixing the slider 53 to the guide rail 51. Specifically, the locking bolt 54 can penetrate the slider 53, and the slider 53 is fixed by locking it against the guide rail 51. A shielding plate 55 may also be provided on the slider 53, positioned above the locking bolt 54, to protect the locking bolt 54 during the spraying operation.

[0094] In this application, the slider 53 is reliably fixed in position by mechanical means to prevent tooling displacement due to vibration or external force during spraying, thus ensuring the stability of electrode size and spacing. The locking bolt 54 is easy to operate and the locking force is adjustable, balancing the flexibility of adjustment with the reliability of fixation.

[0095] In one alternative embodiment, the flipping mechanism 60 includes:

[0096] Two support bases 61 are connected to the end sides of the second plate surface 312 and located at both ends of the groove 14. The support bases 61 form a lifting linkage with the first-stage lifting mechanism 30 and a rotatable connection with the first clamping plate 62. An angle encoder can be integrated on the support base 61 to accurately detect the flip angle of the first clamping plate 62, enabling precise control and feedback of the flip angle. This ensures accurate positioning (e.g., 180 degrees) with each flip, further improving the alignment accuracy and process repeatability of the double-sided electrodes.

[0097] The clamping plates, including a first clamping plate 62 and a second clamping plate 63, are adapted to the groove 14. Either the first clamping plate 62 or the second clamping plate 63 can be accommodated within the groove 14. The first clamping plate 62 is rotatably mounted on the support base 61, and both the first clamping plate 62 and the second clamping plate 63 are equipped with a second electromagnet. When energized, the first clamping plate 62 and the second clamping plate 63 move in tandem, causing them to simultaneously rise, fall, and rotate, clamping the flexible fabric in the middle position between them. A pressure sensor can be installed between the first clamping plate 62 and the second clamping plate 63 to detect the compressive force between them. This allows for real-time monitoring of the clamping force on the flexible fabric, ensuring the pressure remains within a suitable range. This guarantees reliable fixation of the flexible items while preventing excessive pressure from damaging the fabric. After the second electromagnet is de-energized, the first clamping plate 62 and the second clamping plate 63 can move independently, which facilitates the taking, placing and spreading of flexible fabrics.

[0098] In one optional embodiment, the sidewall of the first clamping plate 62 is provided with a guide plate 64, and the inner side of the guide plate 64 is provided with a guide groove 65. The sidewall of the second clamping plate 63 is provided with a protrusion 66, which is slidably disposed within the guide groove 65. When energized, the first clamping plate 62 and the second clamping plate 63 move towards each other under the action of the electromagnet's magnetic force, achieving mutual attraction and contact. The protrusion 66 slides within the guide groove 65, guiding the movement of the first clamping plate 62 and the second clamping plate 63, aligning them, preventing misalignment or skew, ensuring that the flexible fabric is evenly clamped without twisting or stretching, and further guaranteeing the positional accuracy and repeatability of the double-sided electrodes. When the power is off, the first clamping plate 62 and the second clamping plate 63 slide together through the guide groove 65 and the protrusion 66. The first-stage lifting mechanism 30 drives the first clamping plate 62 to rise and fall, while the position of the second clamping plate 63 remains unchanged, thus separating the first clamping plate 62 and the second clamping plate 63. This facilitates the placement and laying of flexible fabric between the first clamping plate 62 and the second clamping plate 63.

[0099] The first clamping plate 62 can be provided with clamping plate brackets at both ends. The guide plate 64 can be provided on the clamping plate brackets. The clamping plate brackets can be provided with rotating shafts 67, which can be directly provided at both ends of the first clamping plate 62. The rotating shafts 67 can be inserted into the through holes of the support base 61 and are rotatably connected to the support base 61. The first clamping plate 62 or the clamping plate brackets can be provided with handles, which are suitable for flipping the first clamping plate 62 by means of the handles. It can be understood that when the second electromagnet is energized, the second clamping plate 63 can be linked with the first clamping plate 62, that is, the second clamping plate 63 and the first clamping plate 62 can be flipped synchronously. The support base 61 can be provided with locking pins 69, which are screwed to the support base 61 and pass through the through hole of the support base 61. The rotating shaft 67 can be locked in the through hole of the support base 61 by rotating the locking pins 69 to prevent the clamping plate from deflecting between the clamping plate and the support base 61.

[0100] Furthermore, the rotating shaft 67 may be provided with two locking holes, which are arranged opposite to each other. A locking pin 69 can be inserted into the locking holes. When the locking pin 69 engages with one of the locking holes, the first clamping plate 62 is arranged opposite to the groove 14; when the locking pin 69 engages with the other locking hole, the second clamping plate 63 is arranged opposite to the groove 14. This ensures precise positioning of the flexible fabric during the flipping process.

[0101] The shielding fixture 56 is symmetrically arranged about the clamping plate. After the flexible fabric is flipped over, the positions of the upper and lower electrodes can be aligned.

[0102] In this application, the flexible fabric can be flipped by rotating the first clamping plate 62 and the second clamping plate 63, thereby allowing electrode spraying on both the upper and lower surfaces of the flexible fabric. The support base 61 is connected to the primary lifting mechanism 30, which enables the clamping plates to be raised and lowered. After flipping, the first clamping plate 62 or the second clamping plate 63 can be accommodated in the groove 14, achieving precise positioning of the fabric during the flipping process. This ensures the alignment accuracy and consistency of the double-sided electrodes.

[0103] In one optional embodiment, when the first clamping plate 62 or the second clamping plate 63 abuts against the bottom end of the groove 14, the surface of the first clamping plate 62 or the second clamping plate 63 is flush with the surface of the spraying worktable 10. The thickness of the first clamping plate 62 or the second clamping plate 63 may be the same as the height of the groove 14, such that when the first clamping plate 62 or the second clamping plate 63 is fully contained within the groove 14, the surface of the first clamping plate 62 or the second clamping plate 63 located within the groove 14 is flush with the top surface of the groove 14, that is, with the surface of the spraying worktable 10.

[0104] In this application, the cooperation between the clamp and the groove 14 facilitates the laying and flattening of the flexible fabric, avoiding fabric wrinkles or displacement caused by height differences.

[0105] The bottom surface of the groove 14 may be provided with a number of positioning pins. The surfaces of the first clamping plate 62 and the second clamping plate 63 are provided with positioning holes 68 corresponding to the positioning pins. After the first clamping plate 62 or the second clamping plate 63 is flipped and enters the groove 14, the positioning pins can be inserted into the positioning holes 68 to position the clamping plate and prevent the clamping plate from deflecting, so that the surface of the first clamping plate 62 or the second clamping plate 63 located in the groove 14 is flush with the surface of the spraying workbench 10.

[0106] Example 2

[0107] like Figure 7 As shown, the present invention also provides a method for preparing a double-sided metal electrode by plasma spraying, applicable to the apparatus for preparing a double-sided metal electrode by plasma spraying as described above, comprising the following steps:

[0108] S1. The second clamping plate 63 is placed in the groove 14. It should be noted that in the initial state, both the primary lifting mechanism 30 and the secondary lifting mechanism 40 are in the low position, the first electromagnet and the second electromagnet are not energized, the second clamping plate 63 is located in the groove 14, and the first clamping plate 62 is located outside the groove 14.

[0109] S2. The first-stage lifting mechanism 30 is raised, and the electrode width and spacing are adjusted via the electrode adjustment mechanism 50. The first-stage lifting mechanism 30 drives the electrode adjustment mechanism 50 and the first clamping plate 62 to rise, while the second clamping plate 63 remains within the groove 14; specifically, the electrode adjustment mechanism 50 and the first clamping plate 62 can be raised by 10cm. Adjusting the electrode width and spacing means adjusting the internal spacing of each shielding fixture 56 and the spacing between the two sets of shielding fixtures 56, such as... Figure 5 As shown, there are two sets of shielding fixtures 56. The spacing between the shielding fixtures 56 in the left group and the spacing between the shielding fixtures 56 in the right group are the widths of the left and right electrodes, respectively. The distance between the first set of shielding fixtures 56 and the second set of shielding fixtures 56 is the spacing between the left and right electrodes.

[0110] S3. Lay the flexible fabric on the spraying workbench 10 and flatten it to avoid wrinkles.

[0111] S4. Lower the first-level lifting mechanism 30 until the shielding fixture 56 and the first clamping plate 62 are both pressed onto the flexible fabric. The first electromagnet and the second electromagnet are energized to press and fix the flexible fabric. Lower the electrode adjustment mechanism 50 and the flipping mechanism 60 until the shielding fixture 56 is attached to the flexible fabric and presses the flexible fabric onto the spraying worktable 10. The first clamping plate 62 is also attached to the flexible fabric. After the first electromagnet and the second electromagnet are activated, under the action of magnetic force, the shielding fixture 56, the spraying worktable 10, and the first clamping plate 62 and the second clamping plate 63 respectively press and fix the flexible fabric. This prevents the MgO fiberglass fabric from shifting the electrode spraying position due to the influence of the plasma gas flow, and also prevents the MgO fiberglass fabric from shifting during flipping, which would cause the positions of the front and back electrodes to not coincide.

[0112] S5. Perform plasma spraying to form two metal electrodes in the exposed areas between the left and right masking fixtures 56.

[0113] S6. De-energize the first electromagnet, and raise the first-level lifting mechanism 30 and the second-level lifting mechanism 40 in sequence until the shielding fixture 56 separates from the flexible fabric and the second clamping plate 63 separates from the groove 14. Then, the flexible fabric is flipped over by the flipping mechanism 60. The first-stage lifting mechanism 30 can lift the electrode adjustment mechanism 50 and the flipping mechanism 60, and the second-stage lifting mechanism 40 can lift the electrode adjustment mechanism 50. At this time, the electrode adjustment mechanism 50 is located above the flipping mechanism 60 after two stages of lifting. The second clamping plate 63 of the flipping mechanism 60 rises synchronously with the first clamping plate 60 under the action of the second electromagnet. The lifting distance of the first-stage lifting mechanism 30 allows the second clamping plate 63 to disengage from the groove 14 and be located above the spraying worktable 10. For example, the lifting distance of the first-stage lifting mechanism 30 can be 10cm, and the lifting distance of the second-stage lifting mechanism 40 can be 5cm. The flexible fabric is flipped over by the flipping mechanism 60. At this time, the first clamping plate 62 and the second clamping plate 63 exchange positions and both are located above the spraying worktable 10. It should be noted that after the flexible fabric is flipped over, the rotating shaft 67 can be locked by the locking pin 69 to prevent the first clamping plate 62 and the second clamping plate 63 from deflecting relative to the support seat 61.

[0114] S7. The first-stage lifting mechanism 30 and the second-stage lifting mechanism 40 are lowered sequentially until the masking fixture 56 presses onto the flexible fabric, and the first clamping plate 62 is positioned within the groove 14. The first electromagnet is energized to press and fix the flexible fabric. Specifically, the first-stage lifting mechanism 30 is lowered until the first clamping plate 62 is located within the groove 14, and the flexible fabric is laid flat on the spraying worktable 10. Specifically, the electrode adjustment mechanism 50 and the flipping mechanism 60 can be lowered simultaneously by 10cm. At this time, the flexible fabric can be laid flat on the spraying worktable 10, fully unfolded to be flat, and the electrode adjustment mechanism 50 is 5cm away from the spraying worktable. Then, the electrode adjustment mechanism 50 is lowered by the second-stage lifting mechanism 40 until the masking fixture 56 adheres to the flexible fabric and presses the flexible fabric onto the spraying worktable 10. The first electromagnet on the masking fixture 56 is energized to press the flexible fabric firmly onto the spraying worktable 10.

[0115] S8. Perform plasma spraying to form two metal electrodes on the other side of the flexible fabric, the positions of which correspond exactly to the positions of the two metal electrodes in step S5.

[0116] S9. The lifting and lowering mechanism is activated, and the flexible fabric is removed. After the spraying is completed, the first and second electromagnets are de-energized, and the lifting electrode adjustment mechanism 50 and the flipping mechanism 60 are activated to remove the flexible fabric.

[0117] In one optional implementation, step S9 specifically includes the following sub-steps:

[0118] S9-1, the first electromagnet is de-energized, and the first-level lifting mechanism 30 and the second-level lifting mechanism 40 are raised in sequence until the shielding fixture 56 is separated from the flexible fabric and the first clamping plate 62 is separated from the groove 14. Then, the flexible fabric is flipped over by the flipping mechanism 60.

[0119] S9-2, lower the first-level lifting mechanism 30 until the second clamping plate 63 is set in the groove 14.

[0120] S9-3, de-energize the second electromagnet, raise the lifting mechanism 30 one level, separate the first clamping plate 62 from the second clamping plate, and remove the flexible fabric.

[0121] S9-4, the first-level lifting mechanism 30 and the second-level lifting mechanism 40 are lowered sequentially, so that they are both in the low position and return to the initial state.

[0122] This application achieves full automation and standardization of the entire process, from electrode parameter setting, flexible fabric placement, spray coating to flipping and recoating, and resetting to the initial state, through a series of coherent and controllable process steps. This not only improves production efficiency and product consistency but also reduces reliance on operator skills, making it suitable for the large-scale, multi-variety electrode fabrication needs.

[0123] This application enables the fabrication of single and double-sided electrodes with lengths ranging from 0 to 6000 mm, widths from 3 mm to 30 mm, and spacings from 120 mm to 1200 mm. These electrodes are reusable and can be quickly positioned.

[0124] Although embodiments of the invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the invention, and such modifications and variations all fall within the scope defined by the appended claims.

Claims

1. An apparatus for preparing double-sided metal electrodes by plasma spraying, characterized in that, include: A spraying workbench (10) is used to lay out flexible fabric; a lifting mechanism (20) consists of two sets, which are respectively set at both ends of the spraying workbench (10). The lifting mechanism (20) includes a primary lifting mechanism (30) and a secondary lifting mechanism (40) set at the output end of the primary lifting mechanism (30); an electrode adjustment mechanism (50) is connected to the secondary lifting mechanism (40) and includes at least two sets of adjustable spacing shielding fixtures (56) for limiting the width and spacing of the electrodes; A flipping mechanism (60) is connected to the first-stage lifting mechanism (30) for clamping and flipping the flexible fabric, wherein the shielding fixture (56) is symmetrically arranged about the flipping mechanism (60); The spraying workbench (10) is provided with a groove (14), which is provided along the extension direction of the first side of the spraying workbench (10), wherein the extension direction of the first side of the spraying workbench (10) is parallel to the extension direction of the masking fixture (56). The output end of the first-stage lifting mechanism (30) has a flipping mechanism mounting plate (31), the second-stage lifting mechanism (40) is mounted on the flipping mechanism mounting plate (31), and the output end of the second-stage lifting mechanism (40) has an electrode adjustment mechanism mounting plate (41). The flipping mechanism mounting plate (31) has a first plate surface (311) and a second plate surface (312). The first plate surface (311) is connected to the output end of the first-stage lifting mechanism (30), and the second plate surface (312) is fixedly disposed on the end side of the first plate surface (311). The first plate surface (311) is parallel to the surface of the spraying workbench (10), and the second plate surface (312) is perpendicular to the first plate surface (311) and is located on the side of the first plate surface (311) away from the first-stage lifting mechanism (30). The electrode adjustment mechanism mounting plate (41) is located on the side of the first plate surface (311) away from the first-stage lifting mechanism (30) and on the side of the second plate surface (312); The shielding fixture (56) is made of steel and has a first electromagnet inside. When energized, it is suitable for the shielding fixture (56) to be adsorbed on the spraying worktable (10) to fix and press the flexible fabric. The flipping mechanism (60) includes: There are two support bases (61), which are connected to the end side of the second plate (312) and located at both ends of the groove (14); The clamping plate includes a first clamping plate (62) and a second clamping plate (63), which are adapted to the groove (14). The first clamping plate (62) is rotatably mounted on the support base (61). The first clamping plate (62) and the second clamping plate (63) are each provided with a second electromagnet, which is suitable for the first clamping plate (62) and the second clamping plate (63) to be linked together after being energized. The shielding fixture (56) is symmetrically arranged about the clamping plate.

2. The apparatus for preparing double-sided metal electrodes by plasma spraying according to claim 1, characterized in that, Both the primary lifting mechanism (30) and the secondary lifting mechanism (40) are lifted and lowered under the action of the driving component, and the lifting and lowering directions are perpendicular to the surface of the spraying workbench (10).

3. The apparatus for preparing double-sided metal electrodes by plasma spraying according to claim 1, characterized in that, The lifting mechanism (20) also includes: The guide mechanism (22) is connected to the electrode adjustment mechanism (50) and is adapted to guide the electrode adjustment mechanism (50) during the lifting and lowering process.

4. The apparatus for preparing double-sided metal electrodes by plasma spraying according to claim 3, characterized in that, The electrode adjustment mechanism (50) includes: There are two guide rails (51), which are laid at both ends of the spraying worktable (10) along the extension direction of the second side of the spraying worktable (10) and located at the outer edge of the spraying worktable (10). The guide rails (51) are connected to the electrode adjustment mechanism mounting plate (41) and the guide mechanism (22) respectively. The second side of the spraying worktable (10) is perpendicular to the first side of the spraying worktable (10). The slider (53) is set on the guide rail (51), and the two ends of the shielding fixture (56) are slidably connected to the two guide rails (51) respectively through the slider (53).

5. The apparatus for preparing double-sided metal electrodes by plasma spraying according to claim 4, characterized in that, The slider (53) is provided with a locking bolt (54), which is suitable for fixing the slider (53) on the guide rail (51).

6. The apparatus for preparing double-sided metal electrodes by plasma spraying according to claim 1, characterized in that, When the first clamping plate (62) or the second clamping plate (63) abuts against the bottom end of the groove (14), the surface of the first clamping plate (62) or the second clamping plate (63) is flush with the surface of the spraying workbench (10).

7. The apparatus for preparing double-sided metal electrodes by plasma spraying according to claim 6, characterized in that, The first clamping plate (62) has a guide plate (64) on its side wall, and a guide groove (65) is provided on the inner side of the guide plate (64). The second clamping plate (63) has a protrusion (66) on its side wall, and the protrusion (66) is slidably disposed in the guide groove (65).

8. A method for preparing a double-sided metal electrode by plasma spraying, applicable to the apparatus for preparing a double-sided metal electrode by plasma spraying as described in any one of claims 1 to 7, characterized in that, Includes the following steps: S1. Place the second clamping plate (63) in the groove (14); S2, an upward lifting mechanism (30) is used to adjust the electrode width and spacing through an electrode adjustment mechanism (50); S3. Lay the flexible fabric on the spraying workbench (10) and flatten it; S4. Lower the first-level lifting mechanism (30) until the shielding fixture (56) and the first clamping plate (62) are pressed onto the flexible fabric. The first electromagnet and the second electromagnet are energized to press and fix the flexible fabric. S5. Perform plasma spraying to form metal electrodes in the exposed area between the masking fixtures (56); S6. De-energize the first electromagnet, and raise the first-level lifting mechanism (30) and the second-level lifting mechanism (40) in sequence until the shielding fixture (56) is separated from the flexible fabric and the second clamping plate (63) is separated from the groove (14). Then, the flexible fabric is flipped over by the flipping mechanism (60). S7. The first-level lifting mechanism (30) and the second-level lifting mechanism (40) are lowered in sequence until the shielding fixture (56) is pressed on the flexible fabric, and the first clamping plate (62) is set in the groove (14). The first electromagnet is energized to press and fix the flexible fabric. S8. Perform plasma spraying to form a metal electrode on the other side of the flexible fabric; S9, lifting mechanism (20), and remove the flexible fabric.

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