A method for shaping a hot wire for HWCVD

Abstract

The application discloses a shaping method for hot wires used for HWCVD, and relates to the technical field of coating equipment. The shaping method for hot wires used for HWCVD comprises the following steps: S100, determining a style to be shaped by the hot wire; S200, installing a hot wire cornering device on a mounting panel according to the style to be shaped by the hot wire, so that the hot wire can obtain a preset style after winding around each hot wire cornering device; and S300, winding the hot wire around each hot wire cornering device, fixing two ends of the hot wire through a hot wire tensioning assembly respectively, and tensioning and maintaining the hot wire for a preset time length, so that the hot wire is shaped and the hot wire style to be shaped is obtained. The hot wire used for HWCVD is shaped by adopting the method, the effect of tensioning, shaping and setting of the hot wire can be achieved, and the hot wire can still maintain the shaped folding line after being taken off from the hot wire tensioning assembly.

Description

Technical Field

[0001] This invention relates to the field of coating equipment technology, and in particular to a method for shaping hot wires for HWCVD. Background Technology

[0002] With the continuous development of the photovoltaic industry, the demand for heterojunction and perovskite solar cells is increasing, and their large-scale mass production and application are also gaining momentum. However, several key technologies for heterojunction and perovskite solar cells still await breakthroughs. PECVD equipment, the main equipment for heterojunction systems, accounts for about 50% of the investment cost of heterojunction equipment (400 million yuan / GW), leaving very limited room for cost reduction. Compared to PECVD equipment, HWCVD technology offers numerous advantages, including better coating quality, higher speed, lower gas consumption, no dust generation, no need for NF3 cleaning, higher capacity, lower equipment cost, and lower operating cost. It is gradually being adopted by the industry, and its popularity is steadily rising.

[0003] In HWCVD equipment, the pyrolysis specialty gas (pyrolysis specialty gas refers to the special gas required during vacuum coating, such as PH3, B2H6, SIH4, etc.) is pyrolyzed in the high-temperature environment of the hot filament to form the ions needed for coating. The success of the coating depends primarily on the temperature of the hot filament; therefore, the shaping and setting of the hot filament are crucial. Its dimensions, distance from the carrier plate, temperature range, and temperature resistance, among other characteristics, are all closely related to the coating effect and service life. Therefore, the selection and shaping of the hot filament are of paramount importance. Currently, because HWCVD technology is not yet widely used in the coating industry, methods for shaping and setting the hot filament are still lacking. Summary of the Invention

[0004] This invention aims to at least solve one of the technical problems existing in the prior art. To this end, this invention proposes a method for shaping hot wires for HWCVD, which enables the hot wires to be shaped according to expected requirements.

[0005] A method for shaping a hot wire for HWCVD according to an embodiment of the present invention includes:

[0006] Step S100: Determine the desired shape of the hot wire:

[0007] Step S200: According to the desired shape of the hot wire, install hot wire benders on the mounting panel so that the hot wire can obtain the preset hot wire shape after passing through each of the hot wire benders.

[0008] Step S300: The hot wire is passed around each of the hot wire benders. The two ends of the hot wire are fixed by the hot wire tensioning assembly and the hot wire is tensioned and held for a preset time to shape the hot wire and obtain the desired hot wire pattern.

[0009] The method for shaping the hot wire for HWCVD according to embodiments of the present invention has at least the following beneficial effects: by using this method to shape the hot wire for HWCVD, the hot wire can be tensioned, shaped and shaped, and after the hot wire is removed from the hot wire tensioning assembly, the hot wire can still maintain the shaped fold line.

[0010] According to some embodiments of the present invention, the number of hot wire benders is at least one, the hot wire bender is mounted on the mounting panel, the hot wire bender is provided with a winding groove, the winding groove is arranged along the winding path of the hot wire, and the distance between the groove path of the winding groove and the mounting surface remains unchanged.

[0011] According to some embodiments of the present invention, the hot wire tensioning assembly includes a hot wire fixing component and a pulling component. The hot wire fixing component is used to fix one end of the hot wire, and the pulling component is mounted on the mounting panel. The hot wire fixing component is connected to the pulling component, and the pulling component can drive the hot wire fixing component to move along a preset tensioning direction of the hot wire.

[0012] According to some embodiments of the present invention, the hot wire fixing assembly includes a hot wire fixing block and a fastener. The hot wire fixing block is provided with a hot wire insertion hole for the hot wire to pass through. The hot wire fixing block is provided with a hot wire fixing hole, and the hot wire fixing hole and the hot wire insertion hole are connected. The fastener is installed on the hot wire fixing hole and can fix the hot wire inserted into the hot wire insertion hole. The hot wire fixing block is connected to the pulling assembly.

[0013] According to some embodiments of the present invention, the pulling assembly is provided with a mounting groove, and the hot wire fixing block is detachably mounted in the mounting groove.

[0014] According to some embodiments of the present invention, the pulling assembly includes a mounting block, a guide seat, and a pulling member. The guide seat is mounted on the mounting panel and has a guiding stroke. The guiding stroke is in the same direction as the preset tensioning direction of the hot wire. The mounting block is mounted on the guide seat, and the hot wire fixing assembly is mounted on the mounting block. The pulling member is connected to the mounting block and is capable of pulling the mounting block along the guiding stroke.

[0015] According to some embodiments of the present invention, the guide seat is provided with a guide groove, the guide groove is arranged along the guide stroke, the mounting block is slidably installed in the guide groove, and the pulling member can pull the mounting block to move along the guide groove.

[0016] According to some embodiments of the present invention, the pulling member includes a fixed seat, a screw, and a nut. The fixed seat is fixed to the mounting surface, the screw is arranged parallel to the guide stroke, one end of the screw is fixedly connected to the mounting block, and the other end passes through the fixed seat and the nut.

[0017] According to some embodiments of the present invention, the hot wire is to be formed in a "U" shape, and there are multiple hot wire corner benders arranged in an alternating "V" pattern. In step S300, after the hot wire is shaped, the shaped hot wire is cut along the transverse direction of the shaped hot wire, and the cutting position is located in the middle of the shaped hot wire, thereby obtaining multiple "U" shaped hot wires.

[0018] According to some embodiments of the present invention, a cutting positioning plate is further included. The line connecting the cutting positions of the hot wire forms a cutting line. The cutting positioning plate is provided between the adjacent hot wire benders on both sides of the cutting line. The cutting positioning plate is arranged along the cutting line and is located on the winding path of the hot wire. The distance from the cutting positioning plate to the hot wire benders on both sides is equal. When the hot wire is cut, the shaped hot wire is cut along the cutting positioning plate.

[0019] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein:

[0021] Figure 1 This is a schematic flowchart of a hot wire shaping method for HWCVD according to the present invention;

[0022] Figure 2 This is a three-dimensional structural schematic diagram of a hot wire shaping fixture according to an embodiment of the present invention;

[0023] Figure 3 This is a schematic diagram of the planar structure of a hot wire shaping fixture according to an embodiment of the present invention;

[0024] Figure 4 This is a schematic diagram of the hot wire bender structure;

[0025] Figure 5 This is a partially enlarged schematic diagram of a hot wire shaping fixture according to an embodiment of the present invention;

[0026] Figure 6 This is a schematic diagram of the structure after the hot wire has been shaped;

[0027] Figure 7 This is a cross-sectional view of the hot wire fixing block;

[0028] Figure 8 This is a schematic diagram showing the hot wire after it has been segmented.

[0029] Figure 9 This is a schematic diagram of the structure for cutting off the positioning plate.

[0030] Icon labels:

[0031] Mounting panel 100; Mounting surface 110; Cutting wire 120;

[0032] Hot wire bender 200; winding groove 210;

[0033] Wire 300;

[0034] Hot wire tensioning assembly 400; hot wire fixing assembly 410; hot wire fixing block 411; hot wire insertion hole 4111; hot wire fixing hole 4112; pulling assembly 420; mounting block 421; mounting groove 4211; guide seat 422; guide groove 4221; pulling component 423; fixing seat 4231; screw 4232; nut 4233;

[0035] Cut off the positioning plate 500; positioning groove 510. Detailed Implementation

[0036] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0037] In the description of this invention, it should be understood that the orientation descriptions, such as up, down, etc., are based on the orientation or positional relationship shown in the drawings and are only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0038] In the description of this invention, "multiple" refers to two or more. The use of "first" and "second" is for distinguishing technical features only and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features or their sequential relationship.

[0039] In the description of this invention, unless otherwise explicitly defined, terms such as "setting," "installing," and "connecting" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this invention in conjunction with the specific content of the technical solution.

[0040] Reference Figure 1 As shown, this invention discloses a method for shaping a hot wire for HWCVD, comprising:

[0041] Step S100: Determine the desired shape for the hot wire 300;

[0042] Step S200: According to the desired shape of the hot wire 300, install the hot wire benders 200 on the mounting panel 100 so that the hot wire 300 can obtain the preset shape after passing through each of the hot wire benders 200.

[0043] Step S300: The hot wire 300 is passed around each of the hot wire benders 200. The two ends of the hot wire 300 are fixed by the hot wire tensioning assembly 400 and the hot wire 300 is tensioned and held for a preset time so that the hot wire 300 is shaped and the desired hot wire 300 style is obtained.

[0044] In this invention, by using this method to shape the hot wire 300 for HWCVD, the hot wire 300 can be tensioned, shaped and shaped. After the hot wire 300 is removed from the hot wire tensioning assembly 400, the hot wire 300 can still maintain the shaped fold line, thereby obtaining the hot wire 300 for HWCVD.

[0045] Reference Figure 2 and Figure 3 As shown, this invention discloses a hot wire shaping fixture, comprising:

[0046] Mounting panel 100, mounting panel 100 is provided with mounting surface 110, mounting surface 110 is provided with cutting line 120;

[0047] Hot wire bender 200, the number of hot wire benders 200 is at least one, the hot wire benders 200 are installed on the mounting panel 100 and are staggered on both sides of the cutting line 120 along the pre-bending direction of the hot wire 300 so that the hot wire 300 can be wrapped around it;

[0048] There are two hot wire tensioning assemblies 400. The hot wire tensioning assemblies 400 are installed on the mounting panel 100. The two hot wire tensioning assemblies 400 can be connected to one end of the wound hot wire 300 respectively, and can tighten the hot wire 300 along the preset tensioning direction, so that the tightened hot wire 300 is in the same plane.

[0049] During installation, the hot wire shaping fixture secures the mounting panel 100. Specifically, it can be installed on a horizontal workbench, ensuring the mounting surface 110 is horizontal. Hot wire benders 200 are staggered on both sides of the cutting line 120 according to the pre-bending direction of the hot wire 300 and are fixedly connected to the mounting panel 100. In this embodiment, to meet the process requirements of horizontal HWCVD, the hot wire benders 200 are arranged in a "U" shape. In other embodiments, the arrangement of the hot wire benders 200 can be based on the desired shape of the hot wire 300 on the mounting panel 100, allowing the hot wire 300 to achieve the desired shape after passing through each hot wire bender 200.

[0050] After the hot wire 300 passes through each hot wire bender 200, its shape becomes the desired hot wire 300 shape. Two hot wire tensioning assemblies 400 are then connected to one end of the wound hot wire 300, tightening it along a preset tensioning direction. This ensures the hot wire 300 maintains its bent shape, achieving the effects of tensioning, shaping, and fixing the hot wire 300. The tightened hot wire 300 is entirely on the same plane, ensuring that each segment has the same size and performance. After cutting the hot wire 300, there will be no inconsistencies in the size and performance of the different segments. After a certain period of setting, when the hot wire 300 is removed from the hot wire tensioning assembly 400, it still maintains its shaped bend.

[0051] Specifically, after the hot wire 300 is straightened, let it remain in this state for 1-3 minutes to set its shape. Otherwise, if the tooling is removed immediately after straightening, the hot wire 300 may spring back, and its setting effect cannot be guaranteed.

[0052] like Figure 2 and Figure 3 As shown, in this embodiment, five hot wires 300 can be shaped and set at one time. The number of them and the relative positions of the hot wire tensioning assemblies 400 at both ends can be flexibly adjusted. It is generally recommended that the number of hot wires 300 to be set be 1-5. Too many hot wires will result in poor setting effect of some hot wires and failure to be fully tightened.

[0053] It should be noted that the "300 heating wire" mentioned in this application refers to Ta wire. In comparison, conventional heating wires are mainly used for heat generation and transfer, with operating temperatures generally between 100-200℃. Iron-chromium-aluminum alloys have a maximum operating temperature of around 1400℃, while nickel-chromium alloys have even lower operating temperatures. The Ta wire mentioned in this paper, however, has superior temperature resistance, with a maximum withstand temperature of 1700℃. In vacuum coating, higher temperatures are beneficial for decomposing specialty gases. If the temperature cannot meet the requirements, the heat transferred by radiation in the vacuum is insufficient to completely decompose the specialty gases, resulting in impure gas composition used for coating, affecting the film effect, and also impacting the utilization rate of the specialty gases.

[0054] Reference Figure 4 As shown, in some embodiments of the present invention, the hot wire bender 200 is provided with a winding groove 210, which is arranged along the winding path of the hot wire 300, and the distance between the groove path of the winding groove 210 and the mounting surface 110 remains unchanged.

[0055] In this embodiment, as the hot wire 300 passes around the hot wire bender 200, it falls into the winding groove 210. Since the distance between the groove path of the winding groove 210 and the mounting surface 110 remains constant, the distance between each position of the hot wire 300 in the winding groove 210 and the mounting surface 110 is also equal. After the hot wire 300 is formed, it can be positioned entirely on the same horizontal plane. In this embodiment, to meet the process requirements of horizontal HWCVD, the winding groove 210 is U-shaped. In other embodiments, the winding groove 210 can be adjusted according to the specific forming style of the hot wire 300, and can be in various shapes such as a straight line or an L-shape; no specific limitations are made here.

[0056] It should be noted that the mounting panel 100 has multiple mounting positions for the hot wire bender 200. By adjusting the mounting position of the hot wire bender 200, the desired shape of the hot wire 300 can be obtained. Specifically, the mounting positions are mounting holes located at different positions. The hot wire bender 200 is installed in each mounting hole using connecting bolts to achieve position adjustment.

[0057] Reference Figure 5 As shown, in some embodiments of the present invention, the hot wire tensioning assembly 400 includes a hot wire fixing component 410 and a pulling component 420. The hot wire fixing component 410 is fixedly connected to one end of the hot wire 300. The pulling component 420 is mounted on the mounting panel 100. The hot wire fixing component 410 is connected to the pulling component 420. The pulling component 420 can drive the hot wire fixing component 410 to move along the preset tensioning direction of the hot wire 300.

[0058] In this embodiment, the hot wire tensioning assembly 400 consists of a hot wire fixing component 410 and a pulling component 420. The hot wire fixing component 410 is used to fix one end of the hot wire 300. After the hot wire 300 is fixed by the hot wire fixing component 410, the pulling component 420 drives the hot wire fixing component 410 to move along the preset tensioning direction of the hot wire 300, thereby tensioning the hot wire 300 along the preset tensioning direction. After the hot wire 300 is tensioned, the pulling component 420 stops moving, allowing the tensioned hot wire 300 to remain for a preset time, generally 1 to 3 minutes, to complete the setting process.

[0059] Reference Figures 5 to 7As shown, in some embodiments of the present invention, the hot wire fixing assembly 410 includes a hot wire fixing block 411 and a fastener. The hot wire fixing block 411 is provided with a hot wire insertion hole 4111 through which the hot wire 300 passes. The hot wire fixing block 411 is provided with a hot wire fixing hole 4112. The hot wire fixing hole 4112 and the hot wire insertion hole 4111 are connected. The fastener is installed on the hot wire fixing hole 4112 and can fix the hot wire 300 inserted into the hot wire insertion hole 4111. The hot wire fixing block 411 is connected to the pulling assembly 420.

[0060] In this embodiment, when the hot wire fixing assembly 410 tightens and fixes the hot wire 300, one end of the hot wire 300 is inserted into the hot wire fixing block 411 through the hot wire insertion hole 4111, and the fastener is then inserted through the hot wire fixing hole 4112 to lock and fix the hot wire 300 located in the hot wire insertion hole 4111. Specifically, the hot wire fixing hole 4112 is located on the side of the hot wire fixing block 4111 and is perpendicular to the hot wire insertion hole 4111. The fastener is a set screw, and the hot wire fixing hole 4112 is a threaded hole. After the set screw is screwed into the threaded hole, the hot wire 300 can be locked and fixed, while also ensuring that the hot wire 300 can be connected to electricity, thereby enabling the hot wire 300 to generate heat and crack the special gas.

[0061] Reference Figure 5 and Figure 6 As shown, in some embodiments of the present invention, the pull assembly 420 is provided with a mounting groove 4211, and the hot wire fixing block 411 is detachably installed in the mounting groove 4211.

[0062] In this embodiment, the hot wire fixing block 411 is detachably installed in the mounting groove 4211. The hot wire fixing block 411 can be installed in the mounting groove 4211 after it has secured the hot wire 300. After the hot wire 300 has been shaped, the hot wire fixing block 411 can be removed from the mounting groove 4211, making it easy to remove the hot wire 300. The design of the mounting groove 4211 ensures that the installation position of the hot wire fixing block 411 is fixed each time, preventing inconsistencies in the specifications of the formed hot wire 300 due to deviations in installation position, thus further improving the accuracy of the installation position. During installation, the hot wire fixing block 411 is fixed to the mounting groove 4211 using connecting bolts. To remove it, simply loosen the connecting bolts and remove the hot wire fixing block 411 from the mounting groove 4211.

[0063] Reference Figure 5As shown, in some embodiments of the present invention, the pulling assembly 420 includes a mounting block 421, a guide seat 422 and a pulling member 423. The guide seat 422 is mounted on the mounting panel 100, and the guide seat 422 has a guide stroke, which is in the same direction as the preset tightening direction of the hot wire 300. The mounting block 421 is mounted on the guide seat 422, the hot wire fixing assembly 410 is mounted on the mounting block 421, and the pulling member 423 is connected to the mounting block 421 and can pull the mounting block 421 to move along the guide stroke.

[0064] In this embodiment, the hot wire fixing assembly 410 is mounted on the mounting block 421. Specifically, the hot wire fixing block 411 is mounted in the mounting groove 4211 on the mounting block 421. When the pulling assembly 420 pulls the hot wire fixing assembly 410, it pulls the mounting block 421 through the pulling member 423 to make it move along the guide stroke, thereby tensioning the hot wire 300 connected to the hot wire fixing block 411 and completing the shaping. The guide stroke of the guide seat 422 is determined by the shaping pattern of the hot wire 300, that is, determined by the extending direction of the end of the hot wire 300. In this embodiment, in order to meet the process requirements of horizontal HWCVD, the hot wire 300 is in an "n" shape, and the pulling assembly 420 cooperates with the hot wire angle bending device 200 to bend and shape the hot wire 300 into the "n" shape.

[0065] Referring to Figure 5 As shown, in some embodiments of the present invention, the guide seat 422 is provided with a guide groove 4221, the guide groove 4221 is arranged along the guide stroke, the mounting block 421 is slidably mounted in the guide groove 4221, and the pulling member 423 can pull the mounting block 421 to move along the guide groove 4221.

[0066] In this embodiment, by slidably mounting the mounting block 421 on the guide groove 4221, when the mounting block 421 moves along the guide groove 4221, it moves along the preset tightening direction of the hot wire 300, ensuring the accuracy and stability of the tightening direction.

[0067] Referring to Figure 5 As shown, in some embodiments of the present invention, the pulling member 423 includes a fixing seat 4231, a screw rod 4232 and a nut 4233. The fixing seat 4231 is fixed on the mounting surface 110, the screw rod 4232 is arranged parallel to the guide stroke, one end of the screw rod 4232 is fixedly connected with the mounting block 421, and the other end passes through the fixing seat 4231 and is connected with the nut 4233.

[0068] In this embodiment, when the pulling member 423 pulls the mounting block 421, it tightens the mounting block 421 by turning the nut 4233 and the screw 4232, causing it to move along the length of the screw 4232, thereby tightening the hot wire 300. When it is tightened to the preset position, the nut 4233 is stopped and held for a certain period of time so that the hot wire 300 is shaped.

[0069] It should be noted that in other embodiments, various methods such as winding and tightening can also be used to tighten the hot wire.

[0070] Reference Figure 8 As shown, the hot wire 300 is to be formed in a "U" shape. The number of hot wire corner benders 200 is at least one, and they are arranged in an alternating "V" shape. In step S300, after the hot wire 300 is shaped, the shaped hot wire 300 is cut along the horizontal direction of the shaped hot wire 300, and the cutting position is located in the middle of the shaped hot wire 300, so as to obtain multiple "U" shaped hot wires 300.

[0071] It is understandable that when there is only one hot wire bend 200, after the hot wire 300 passes around one hot wire bend 200, both ends of the hot wire 300 are directly connected to the hot wire tensioning assembly 400, which can also be formed as shown. Figure 8 The hot wire segment shown.

[0072] Reference Figure 2 and Figure 9 As shown, in some embodiments of the present invention, a cutting positioning plate 500 is also included. The line connecting the cutting positions of the hot wire 300 forms a cutting line 120. Cutting positioning plates 500 are provided between adjacent hot wire benders 200 on both sides of the cutting line 120. The cutting positioning plates 500 are arranged along the cutting line 120 and are located on the winding path of the hot wire 300. The distance from the cutting positioning plate 500 to the two cutting positioning plates 500 on both sides is equal.

[0073] refer to Figure 8 As shown, to meet the process requirements of horizontal HWCVD, the hot wire 300 needs to be cut into the following shapes after it has been shaped: Figure 7 The hot wire segment shown. After shaping, the hot wire 300 is cut into the following shapes. Figure 7 When cutting the hot wire segment as shown, since the distance from the positioning plate 500 to the two hot wire benders 200 is equal, and the positioning plate 500 is located in the middle of the shaped hot wire 300, cutting the hot wire 300 from the positioning plate 500 will yield two identical U-shaped hot wires. It should be noted that the cutting is not achieved by cutting the positioning plate 500 itself, but rather by using other tools such as scissors or diagonal pliers. The positioning plate 500 primarily serves a positioning function.

[0074] In particular, the cutting positioning plate 500 also serves to support the hot wire 300, which can further reduce the slight drooping of the hot wire 300 between the two hot wire benders 200 and ensure that the hot wire 300 is on the same plane.

[0075] Reference Figure 2 and Figure 9 As shown, in some embodiments of the present invention, the cutting positioning plate 500 is provided with a positioning groove 510, which is located on the path through which the hot wire 300 passes through the cutting positioning plate 500.

[0076] In this embodiment, by setting the positioning groove 510, when the hot wire 300 passes through the cutting positioning plate 500, the hot wire 300 is located in the positioning groove 510, which can play a positioning role for the hot wire 300 during the tightening process.

[0077] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A method for shaping a hot wire for HWCVD, characterized in that, include: Step S100: Determine the desired shape of the hot wire; Step S200: According to the desired shape of the hot wire, install hot wire benders on the mounting panel so that the hot wire can obtain the preset hot wire shape after passing through each of the hot wire benders. Step S300: The hot wire is passed around each of the hot wire benders. The two ends of the hot wire are fixed by the hot wire tensioning assembly and the hot wire is tensioned and held for a preset time to shape the hot wire and obtain the desired hot wire pattern.

2. The method for shaping hot wires for HWCVD according to claim 1, characterized in that: The number of hot wire benders is at least one. The hot wire bender is mounted on the mounting panel. The hot wire bender is provided with a winding groove. The winding groove is arranged along the winding path of the hot wire. The distance between the groove path and the mounting surface remains unchanged.

3. The method for shaping hot wires for HWCVD according to claim 1, characterized in that: The hot wire tensioning assembly includes a hot wire fixing component and a pulling component. The hot wire fixing component is used to fix one end of the hot wire. The pulling component is mounted on the mounting panel. The hot wire fixing component is connected to the pulling component. The pulling component can drive the hot wire fixing component to move along the preset tensioning direction of the hot wire.

4. The method for shaping hot wires for HWCVD according to claim 3, characterized in that: The hot wire fixing assembly includes a hot wire fixing block and a fastener. The hot wire fixing block has a hot wire insertion hole for the hot wire to pass through. The hot wire fixing block has a hot wire fixing hole, which is connected to the hot wire insertion hole. The fastener is installed on the hot wire fixing hole and can fix the hot wire inserted into the hot wire insertion hole. The hot wire fixing block is connected to the pulling assembly.

5. The method for shaping the hot wire for HWCVD according to claim 4, characterized in that: The pulling assembly is provided with a mounting groove, and the hot wire fixing block is detachably installed in the mounting groove.

6. The method for shaping hot wires for HWCVD according to claim 3, characterized in that: The pulling assembly includes a mounting block, a guide seat, and a pulling member. The guide seat is mounted on the mounting panel and has a guiding stroke. The guiding stroke is in the same direction as the preset tensioning direction of the hot wire. The mounting block is mounted on the guide seat, and the hot wire fixing assembly is mounted on the mounting block. The pulling member is connected to the mounting block and can pull the mounting block to move along the guiding stroke.

7. The method for shaping hot wires for HWCVD according to claim 6, characterized in that: The guide seat is provided with a guide groove, which is set along the guide stroke. The mounting block is slidably installed in the guide groove, and the pulling member can pull the mounting block to move along the guide groove.

8. The method for shaping hot wires for HWCVD according to claim 6, characterized in that: The pulling component includes a fixed base, a screw, and a nut. The fixed base is fixed to the mounting surface. The screw is arranged parallel to the guide stroke. One end of the screw is fixedly connected to the mounting block, and the other end passes through the fixed base and the nut.

9. The method for shaping hot wires for HWCVD according to claim 1, characterized in that: The hot wire is to be formed in a "U" shape. There are multiple hot wire corner benders, which are arranged in an alternating "V" shape. In step S300, after the hot wire is shaped, it is cut along the transverse direction of the shaped hot wire, and the cutting position is located in the middle of the shaped hot wire, so as to obtain multiple "U" shaped hot wires.

10. The method for shaping the hot wire for HWCVD according to claim 9, characterized in that: It also includes a cutting positioning plate. The line connecting the cutting positions of the hot wire forms a cutting line. The cutting positioning plate is provided between the adjacent hot wire benders on both sides of the cutting line. The cutting positioning plate is set along the cutting line and is located on the winding path of the hot wire. The distance from the cutting positioning plate to the hot wire benders on both sides is equal. When the hot wire is cut, the shaped hot wire is cut along the cutting positioning plate.

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