Spotting device

Abstract

The application relates to the technical field of photovoltaic cell film strip pasting, in particular to a point ironing device. The point ironing device comprises an X-direction main point ironing mechanism, an X-direction auxiliary point ironing mechanism and a Y-direction point ironing mechanism, the X-direction auxiliary point ironing mechanism is arranged at the side of the X-direction main point ironing mechanism along the X direction, the Y-direction point ironing mechanism is arranged at the side of the X-direction main point ironing mechanism along the Y direction, the X direction is perpendicular to the Y direction, and the X-direction auxiliary point ironing mechanism can selectively work synchronously with the X-direction main point ironing mechanism. By arranging the X-direction main point ironing mechanism and the X-direction auxiliary point ironing mechanism which can independently or synchronously work, and combining the Y-direction point ironing mechanism, the adaptability to different cell layout patterns and sizes is enhanced, and the application flexibility of the equipment is improved. The modular design allows the working range and mode of the point ironing assembly to be flexibly adjusted according to the actual distribution of cell string gaps, helps to improve the processing compatibility of various specifications of photovoltaic assemblies, and adapts to the change requirements of the production line.

Description

Technical Field

[0001] This application relates to the field of photovoltaic cell film tape attachment technology, and in particular to a hot-heating device. Background Technology

[0002] After being strung together, photovoltaic cells are arranged in a rectangular pattern on a backsheet glass, with an EVA film layer between the cells and the glass. Gaps exist between the rectangularly arranged cells, which are typically covered with film tape, usually using two methods: film application and heat transfer. Heat transfer devices in related technologies are often designed for specific cell string sizes, and their ability to adjust the position of the heat transfer mechanism and the spacing of the heat transfer components is limited, making it difficult to accommodate cell layouts of different types or sizes. This lack of flexibility is becoming increasingly apparent. Utility Model Content

[0003] In view of this, this application provides a spot-heating device that can improve the application flexibility of the spot-heating device.

[0004] An embodiment of this application provides a spot-iron device, including an X-direction main spot-iron mechanism, an X-direction secondary spot-iron mechanism, and a Y-direction spot-iron mechanism. The X-direction secondary spot-iron mechanism is located on the side of the X-direction main spot-iron mechanism along the X direction, and the Y-direction spot-iron mechanism is located on the side of the X-direction main spot-iron mechanism along the Y direction. The X direction is perpendicular to the Y direction, and the X-direction secondary spot-iron mechanism can selectively work synchronously with the X-direction main spot-iron mechanism.

[0005] In some optional embodiments, two sets of X-direction auxiliary point ironing mechanisms are provided. An X-direction auxiliary point ironing mechanism is provided on each side of the X-direction main point ironing mechanism along the X direction. The X-direction auxiliary point ironing mechanism moves relative to the X-direction main point ironing mechanism along the Z direction. The X direction, Y direction and Z direction are perpendicular to each other.

[0006] In some optional embodiments, the X-direction main point ironing mechanism includes a first guide rail and a plurality of main point ironing components spaced apart along the Y direction. The first guide rail extends along the Y direction, and each main point ironing component is slidably disposed on the first guide rail along the Y direction. The spacing between two adjacent main point ironing components is adjustable.

[0007] In some optional embodiments, the main hot stamping assembly includes a main moving profile and a plurality of hot stamping units spaced apart along the X direction. The main moving profile extends along the X direction, and each hot stamping unit is slidably disposed on the main moving profile along the X direction. The spacing between two adjacent hot stamping units is adjustable.

[0008] In some optional embodiments, the X-direction auxiliary point-pressing mechanism includes a second guide rail, a lifting component, and a plurality of auxiliary point-pressing components spaced apart along the Y direction. The second guide rail extends along the Y direction, and the lifting component drives the second guide rail to move up and down along the Z direction to reach a first position and a second position. When the second guide rail is in the first position, the X-direction auxiliary point-pressing mechanism can work synchronously with the X-direction main point-pressing mechanism. When the second guide rail is in the second position, the X-direction main point-pressing mechanism can work independently of the X-direction auxiliary point-pressing mechanism. The first position along the Z direction is located below the second position, and the X, Y, and Z directions are perpendicular to each other. Each auxiliary point-pressing component is slidably disposed on the second guide rail along the Y direction, and the spacing between two adjacent auxiliary point-pressing components is adjustable. Each auxiliary point-pressing component includes a secondary moving profile and a plurality of point-pressing units spaced apart along the X direction. The secondary moving profile extends along the X direction, and each point-pressing unit is slidably disposed on the secondary moving profile along the X direction, and the spacing between two adjacent point-pressing units is adjustable.

[0009] In some optional embodiments, the Y-direction hot stamping mechanism includes a transverse component, a Y-direction profile, and a plurality of hot stamping units spaced apart along the Y direction. The Y-direction profile extends along the Y direction and is slidably connected to the transverse component along the X direction. The transverse component drives the Y-direction profile. Each hot stamping unit is slidably disposed on the Y-direction profile along the Y direction, and the spacing between two adjacent hot stamping units is adjustable.

[0010] In some optional embodiments, the X-direction main heating mechanism, the X-direction auxiliary heating mechanism, and the Y-direction heating mechanism all include heating units. The heating unit includes a fixed plate, a sliding plate, a heating head, a heating rod, and an elastic element. The sliding plate is slidably disposed on the fixed plate along the Z-direction, and the X-direction, Y-direction, and Z-direction are perpendicular to each other. The heating head is fixed to the sliding plate, and the heating rod is partially disposed inside the heating head. The elastic element connects the fixed plate and the sliding plate to provide cushioning and clamping force.

[0011] In some optional embodiments, the hot stamping unit includes a mounting block and an adjusting member. The mounting block is fixed to the side of the fixing plate facing the sliding plate, and the adjusting member is adjustable in position along the Z direction on the mounting block. One end of the elastic member is fixed to the adjusting member, and the other end is fixed to the sliding plate.

[0012] In some optional embodiments, the adjusting member includes an adjusting column, a first nut, and a second nut. The adjusting column passes through the mounting block, the elastic element is connected to the adjusting column, and the first nut and the second nut are respectively located on both sides of the mounting block along the Z direction and are threadedly connected to the adjusting column.

[0013] In some alternative embodiments, the hot-pressing unit includes a thermocouple disposed around the hot-pressing head for detecting the temperature of the hot-pressing head.

[0014] By incorporating an X-axis main heat-pressing mechanism and an X-axis auxiliary heat-pressing mechanism that can operate independently or synchronously, combined with a Y-axis heat-pressing mechanism, the adaptability to different cell layouts, shapes, and sizes is enhanced, improving the equipment's application flexibility. Its modular design allows for flexible adjustment of the heat-pressing module's operating range and mode based on the actual distribution of the cell string spacing, helping to improve processing compatibility for various photovoltaic module specifications and adapt to changing production line needs. Attached Figure Description

[0015] Figure 1 This is a perspective view of the hot-heating device in one embodiment of this application.

[0016] Figure 2 This is a top view of the hot-heating device in one embodiment of this application.

[0017] Figure 3 This is a perspective view of the hot stamping unit in one embodiment of this application.

[0018] Explanation of main component symbols 001. Icing device; 100. X-direction main ignition mechanism; 110. First guide rail; 120. Main ignition assembly; 121. Main moving profile; D. Icing unit; D1. Fixed plate; D2. Sliding plate; D3. Icing head; D4. Heating rod; D5. Elastic element; D6. Mounting block; D7. Adjusting element; D71. Adjusting column; D72. First nut; D73. Second nut; D8. Thermocouple; 200. X-direction secondary ignition mechanism; 210. Second guide rail; 220. Lifting assembly; 230. Secondary ignition assembly; 231. Secondary moving profile; 300. Y-direction ignition mechanism; 310. Lateral movement assembly; 320. Y-direction profile; 400. First area; 500. Second area; 600. Glass base plate assembly. Detailed Implementation

[0019] To further illustrate the technical means and effects adopted by this application to achieve the intended purpose, the following description, in conjunction with the accompanying drawings and embodiments, is provided. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments.

[0020] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.

[0021] The spot heating devices in related technologies are often designed for specific battery string sizes. Their position of the spot heating mechanism and the spacing of the spot heating components have limited adjustment capabilities, making it difficult to be compatible with battery cell layouts of different types or sizes. Their lack of flexibility is becoming increasingly prominent.

[0022] One embodiment of this application provides a spot-iron device, including an X-direction main spot-iron mechanism, an X-direction secondary spot-iron mechanism, and a Y-direction spot-iron mechanism. The X-direction secondary spot-iron mechanism is located on the side of the X-direction main spot-iron mechanism along the X direction, and the Y-direction spot-iron mechanism is located on the side of the X-direction main spot-iron mechanism along the Y direction. The X direction is perpendicular to the Y direction, and the X-direction secondary spot-iron mechanism can selectively work synchronously with the X-direction main spot-iron mechanism.

[0023] By incorporating an X-axis main heat-pressing mechanism and an X-axis auxiliary heat-pressing mechanism that can operate independently or synchronously, combined with a Y-axis heat-pressing mechanism, the adaptability to different cell layouts, shapes, and sizes is enhanced, improving the equipment's application flexibility. Its modular design allows for flexible adjustment of the heat-pressing module's operating range and mode based on the actual distribution of the cell string spacing, helping to improve processing compatibility for various photovoltaic module specifications and adapt to changing production line needs.

[0024] The following detailed description of some embodiments of this application is provided in conjunction with the accompanying drawings. Unless otherwise specified, the embodiments and features described below can be combined with each other.

[0025] Please see Figure 1 and Figure 2 One embodiment of this application provides a spot-heating device 001, including an X-direction main spot-heating mechanism 100, an X-direction secondary spot-heating mechanism 200, and a Y-direction spot-heating mechanism 300.

[0026] The X-direction auxiliary hot stamping mechanism 200 is located on the side of the X-direction main hot stamping mechanism 100 along the X direction, and the Y-direction hot stamping mechanism 300 is located on the side of the X-direction main hot stamping mechanism 100 along the Y direction. The X-direction auxiliary hot stamping mechanism 200 can selectively work synchronously with the X-direction main hot stamping mechanism 100. The X direction is perpendicular to the Y direction. By setting up the X-direction main hot stamping mechanism 100 and the X-direction auxiliary hot stamping mechanism 200, which can work independently or synchronously, and combining them with the Y-direction hot stamping mechanism 300, the adaptability to different battery cell layouts, shapes, and sizes is enhanced, and the application flexibility of the equipment is improved.

[0027] By modularizing the multiple heating mechanisms, the operating range and mode of the heating components can be flexibly adjusted according to the actual distribution of the gaps between the battery strings, which helps to improve the processing compatibility of photovoltaic modules of various specifications and adapt to the changing needs of the production line.

[0028] Please see Figure 2The heat-pressing device 001 has a first region 400 and a second region 500, which are arranged along the Y direction. The first region 400 is located directly below the X-direction main heat-pressing mechanism 100 and the X-direction auxiliary heat-pressing mechanism 200, and the second region 500 is located directly below the Y-direction heat-pressing mechanism 300. When the heat-pressing device 001 is working, the glass base plate assembly 600 to be heat-pressed is first located in the first region 400 and heat-pressed by the X-direction main heat-pressing mechanism 100 alone, or by the X-direction main heat-pressing mechanism 100 and the X-direction auxiliary heat-pressing mechanism 200 together, and then enters the second region 500 to be heat-pressed by the Y-direction heat-pressing mechanism 300.

[0029] By setting up a first region 400 and a second region 500 distributed along the Y direction, precise spot heating of the glass base plate assembly 600 in different regions and stages is achieved. This layout not only ensures the continuity of the spot heating process, but also enhances the adaptability of the spot heating device 001 to different cell layouts and sizes through the coordinated or independent working modes of the X-direction main spot heating mechanism 100 and the X-direction auxiliary spot heating mechanism 200, which is conducive to improving the accuracy of the spot heating position and the overall production efficiency.

[0030] During the hot stamping process, the glass base plate assembly 600 can rise and contact the hot stamping device 001, or the hot stamping device 001 can descend entirely and contact the glass base plate assembly 600. These two methods provide flexibility for equipment layout and production line design, allowing for the selection of an appropriate solution based on specific spatial structures and automation requirements. This facilitates integration into production lines with different configurations, enhancing the equipment's adaptability and application range.

[0031] In some embodiments, two sets of X-direction auxiliary ironing mechanisms 200 are provided. Each side of the X-direction main ironing mechanism 100 along the X direction is provided with an X-direction auxiliary ironing mechanism 200. The X-direction auxiliary ironing mechanism 200 moves relative to the X-direction main ironing mechanism 100 along the Z direction. The X direction, Y direction and Z direction are perpendicular to each other.

[0032] By arranging X-direction auxiliary hot-spotting mechanisms 200 on both sides of the X-direction main hot-spotting mechanism 100, and enabling them to move independently or collaboratively with the X-direction main hot-spotting mechanism 100 along the Z-direction, the adaptability of the device to the gap distribution of battery strings of different sizes in the X-direction is further improved. This layout enhances the coverage and flexibility of the hot-spotting operation, which is conducive to the efficient and precise processing of photovoltaic modules of various specifications.

[0033] Please see Figure 1 and Figure 2In some embodiments, the X-direction main heat-pressing mechanism 100 includes a first guide rail 110 and a plurality of main heat-pressing components 120 spaced apart along the Y direction. The first guide rail 110 extends along the Y direction, and each main heat-pressing component 120 is slidably disposed on the first guide rail 110 along the Y direction. The spacing between two adjacent main heat-pressing components 120 is adjustable, so that the spacing between two adjacent main heat-pressing components 120 can be flexibly adjusted according to the actual distribution of the battery string gap, thereby enhancing the adaptability of the heat-pressing device 001 to battery cells of different types and sizes.

[0034] In some embodiments, the main heat-dispensing assembly 120 includes a main movable profile 121 and a plurality of heat-dispensing units D spaced apart along the X direction. The main movable profile 121 extends along the X direction, and each heat-dispensing unit D is slidably disposed on the main movable profile 121 along the X direction. The spacing between two adjacent heat-dispensing units D is adjustable so as to adjust the spacing of each heat-dispensing unit D as needed, further enhancing the device's adaptability to photovoltaic modules of different shapes and sizes.

[0035] In some embodiments, the X-direction auxiliary ironing mechanism 200 includes a second guide rail 210, a lifting component 220, and a plurality of auxiliary ironing components 230 spaced apart along the Y direction. The second guide rail 210 extends along the Y direction, and the lifting component 220 drives the second guide rail 210 to move up and down along the Z direction, so that the X-direction auxiliary ironing mechanism 200 moves relative to the X-direction main ironing mechanism 100 along the Z direction.

[0036] Specifically, the lifting assembly 220 drives the second guide rail 210 to move up and down along the Z direction to reach the first position and the second position. When the second guide rail 210 is in the first position, the X-direction auxiliary ironing mechanism 200 can work synchronously with the X-direction main ironing mechanism 100. When the second guide rail 210 is in the second position, the X-direction main ironing mechanism 100 can work independently of the X-direction auxiliary ironing mechanism 200. The first position along the Z direction is below the second position.

[0037] If the glass base plate assembly 600 has a larger width in the X direction, the X-direction auxiliary ironing mechanism 200 can be lowered to the same height as the X-direction main ironing mechanism 100 via the lifting assembly 220, so as to work synchronously with the X-direction main ironing mechanism 100. If the width of the glass base plate assembly 600 in the X direction is smaller than the working width of the X-direction main ironing mechanism 100, the X-direction auxiliary ironing mechanism 200 can be raised via the lifting assembly 220, so as to allow the X-direction main ironing mechanism 100 to work independently.

[0038] Each of the auxiliary point heating components 230 is slidably disposed on the second guide rail 210 along the Y direction, and the spacing between two adjacent auxiliary point heating components 230 is adjustable.

[0039] In some embodiments, the secondary hot stamping assembly 230 includes a secondary movable profile 231 and a plurality of hot stamping units D spaced apart along the X direction. The secondary movable profile 231 extends along the X direction, and each hot stamping unit D is slidably disposed on the secondary movable profile 231 along the X direction. The spacing between two adjacent hot stamping units D is adjustable.

[0040] In some embodiments, the Y-direction hot stamping mechanism 300 includes a transverse component 310, a Y-direction profile 320, and a plurality of hot stamping units D spaced apart along the Y direction. The Y-direction profile 320 extends along the Y direction and is slidably connected to the transverse component 310 along the X direction. The transverse component 310 drives the Y-direction profile 320 to move along the X direction, enabling the Y-direction hot stamping mechanism 300 to flexibly adjust its working position in the X direction. Combined with the hot stamping units D spaced apart along the Y direction with adjustable spacing, the device's adaptability to the gap distribution of battery cells of different sizes in the X and Y directions is significantly enhanced.

[0041] If the glass base plate assembly 600 has a large width in the X direction, the Y-direction profile 320 can be driven by the transverse component 310, thereby flexibly adjusting the working position of the multiple point-heating units D distributed at intervals along the Y direction in the X direction and expanding the working range of the Y-direction point-heating mechanism 300.

[0042] Each heat-pressing unit D is slidably disposed on the Y-direction profile 320 along the Y direction, and the spacing between two adjacent heat-pressing units D is adjustable, so as to adjust the spacing of each heat-pressing unit D as needed, further enhancing the device's adaptability to photovoltaic modules of different shapes and sizes.

[0043] It is worth noting that the ironing unit D in the X-direction main ironing mechanism 100, X-direction secondary ironing mechanism 200, and Y-direction ironing mechanism 300 described above is the same type of ironing unit. In other embodiments, the ironing unit D in the X-direction main ironing mechanism 100, X-direction secondary ironing mechanism 200, and Y-direction ironing mechanism 300 can also be set to different types and different parameters, etc. Here, only one type of ironing unit D will be described in detail.

[0044] Please see Figure 1 and Figure 3In some embodiments, the heat-pressing unit D includes a fixed plate D1, a sliding plate D2, a heat-pressing head D3, a heating rod D4, and an elastic element D5. The fixed plate D1 is adjustablely fixed to the corresponding profile. The sliding plate D2 is slidably disposed on the fixed plate D1 along the Z-direction. The heat-pressing head D3 is fixed to the sliding plate D2. The heating rod D4 is partially disposed within the heat-pressing head D3. The elastic element D5 connects the fixed plate D1 and the sliding plate D2 to provide cushioning and clamping force, ensuring uniform and stable heat-pressing pressure. The elastic element D5 reduces the impact during the heat-pressing process, improves the reliability and consistency of the heat-pressing connection, and the overall position of the heat-pressing unit D on the profile is adjustable, enhancing its adaptability to different patterns.

[0045] In some embodiments, the hot stamping unit D includes a mounting block D6 and an adjusting member D7. The mounting block D6 is fixed to the side of the fixing plate D1 facing the sliding plate D2. The adjusting member D7 is adjustable along the Z-direction and positioned on the mounting block D6. One end of the elastic member D5 is fixed to the adjusting member D7, and the other end is fixed to the sliding plate D2, allowing the operator to precisely adjust the clamping force of the hot stamping head D3 on the battery cell according to the actual working conditions. This design enhances adaptability to workpieces of different thicknesses and process requirements, helps optimize the stability and consistency of the hot stamping process, improves connection quality, and maintains the original adaptive and shock-resistant advantages of elastic buffering.

[0046] Specifically, the adjusting component D7 includes an adjusting column D71, a first nut D72, and a second nut D73. The adjusting column D71 passes through the mounting block D6, and the elastic element D5 is connected to the adjusting column D71. The first nut D72 and the second nut D73 are respectively located on both sides of the mounting block D6 along the Z direction and are threadedly connected to the adjusting column D71. The adjusting column D71 is fixedly connected to the mounting block D6 by the double nuts. The vertical position of the adjusting column D71 can be adjusted by disassembling or loosening the first nut D72 and the second nut D73.

[0047] In some embodiments, the hot stamping unit D includes a thermocouple D8, which is disposed around the hot stamping head D3 and can directly and in real time detect the actual operating temperature of the hot stamping head D3. This contact-type temperature measurement method has a fast response speed, which helps to achieve precise closed-loop control and temperature fluctuation monitoring of the heating process, thereby improving the temperature consistency and reliability of the hot stamping process and ensuring the bonding quality.

[0048] Furthermore, those skilled in the art should recognize that the above embodiments are merely illustrative of this application and are not intended to limit this application. Any appropriate changes and variations made to the above embodiments within the essential spirit and scope of this application fall within the scope of this application's disclosure.

Claims

1. A spot-heating device, characterized in that, It includes an X-direction main ironing mechanism, an X-direction secondary ironing mechanism, and a Y-direction ironing mechanism. The X-direction secondary ironing mechanism is located on the side of the X-direction main ironing mechanism along the X direction, and the Y-direction ironing mechanism is located on the side of the X-direction main ironing mechanism along the Y direction. The X direction is perpendicular to the Y direction. The X-direction secondary ironing mechanism can selectively work synchronously with the X-direction main ironing mechanism.

2. The spot-heating device as described in claim 1, characterized in that, The X-direction auxiliary point ironing mechanism is provided in two sets. The X-direction main point ironing mechanism is provided with an X-direction auxiliary point ironing mechanism on each side along the X direction. The X-direction auxiliary point ironing mechanism moves relative to the X-direction main point ironing mechanism along the Z direction. The X direction, the Y direction, and the Z direction are perpendicular to each other.

3. The spot-heating device as described in claim 1, characterized in that, The X-direction main point ironing mechanism includes a first guide rail and a plurality of main point ironing components spaced apart along the Y direction. The first guide rail extends along the Y direction, and each main point ironing component is slidably disposed on the first guide rail along the Y direction. The spacing between two adjacent main point ironing components is adjustable.

4. The spot-heating device as described in claim 3, characterized in that, The main hot stamping assembly includes a main moving profile and a plurality of hot stamping units spaced apart along the X direction. The main moving profile extends along the X direction, and each hot stamping unit is slidably disposed on the main moving profile along the X direction. The spacing between two adjacent hot stamping units is adjustable.

5. The spot-heating device as described in claim 1, characterized in that, The X-direction auxiliary point heating mechanism includes a second guide rail, a lifting assembly, and multiple auxiliary point heating assemblies spaced apart along the Y direction. The second guide rail extends along the Y direction, and the lifting component drives the second guide rail to move up and down along the Z direction to reach the first position and the second position. When the second guide rail is in the first position, the X-direction auxiliary ironing mechanism can work synchronously with the X-direction main ironing mechanism. When the second guide rail is in the second position, the X-direction main ironing mechanism can work independently of the X-direction auxiliary ironing mechanism. The first position along the Z direction is below the second position, and the X direction, the Y direction, and the Z direction are perpendicular to each other. Each of the sub-point heating components is slidably disposed on the second guide rail along the Y direction, and the spacing between two adjacent sub-point heating components is adjustable; the sub-point heating component includes a sub-moving profile and a plurality of point heating units spaced apart along the X direction, the sub-moving profile extends along the X direction, each point heating unit is slidably disposed on the sub-moving profile along the X direction, and the spacing between two adjacent point heating units is adjustable.

6. The spot-heating device as described in claim 1, characterized in that, The Y-direction hot stamping mechanism includes a lateral moving component, a Y-direction profile, and a plurality of hot stamping units spaced apart along the Y-direction. The Y-direction profile extends along the Y-direction and is slidably connected to the lateral moving component along the X-direction. The lateral moving component drives the Y-direction profile. Each hot stamping unit is slidably disposed on the Y-direction profile along the Y-direction, and the spacing between two adjacent hot stamping units is adjustable.

7. The spot-heating device as described in claim 1, characterized in that, The X-direction main heating mechanism, the X-direction auxiliary heating mechanism, and the Y-direction heating mechanism all include heating units. Each heating unit includes a fixed plate, a sliding plate, a heating head, a heating rod, and an elastic element. The sliding plate is slidably disposed on the fixed plate along the Z-direction. The X-direction, the Y-direction, and the Z-direction are perpendicular to each other. The heating head is fixed to the sliding plate, and the heating rod is partially disposed inside the heating head. The elastic element connects the fixed plate and the sliding plate to provide cushioning and clamping force.

8. The spot-heating device as described in claim 7, characterized in that, The hot stamping unit includes a mounting block and an adjusting member. The mounting block is fixed to the side of the fixing plate facing the sliding plate. The adjusting member is adjustable along the Z direction and is located on the mounting block. One end of the elastic member is fixed to the adjusting member and the other end is fixed to the sliding plate.

9. The spot-heating device as described in claim 8, characterized in that, The adjusting component includes an adjusting column, a first nut, and a second nut. The adjusting column passes through the mounting block, and the elastic element is connected to the adjusting column. The first nut and the second nut are respectively located on both sides of the mounting block along the Z direction and are threadedly connected to the adjusting column.

10. The spot-heating device as described in claim 7, characterized in that, The hot-pressing unit includes a thermocouple disposed around the hot-pressing head to detect the temperature of the hot-pressing head.

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