Welding temperature control device of series welding machine

Abstract

The embodiment of the utility model provides a welding temperature control device of a series welding machine, the welding temperature control device comprises a supporting plate, a plurality of lampshade assemblies and a driving assembly, the supporting plate is provided with a plurality of infrared lamp tubes; the lampshade assemblies are rotationally arranged on the supporting plate, and each lampshade assembly correspondingly adjusts the width of an irradiation area of a light source emitted by the corresponding infrared lamp tube. The driving assembly is used for driving the lampshade assemblies to rotate on the supporting plate. According to the technical scheme, rotation of the lampshade assembly can be controlled through the driving assembly, the width of the irradiation area of the infrared lamp tube is accurately adjusted, a partition is formed between the infrared lamp tube and the battery piece instantly, the battery piece can stay for any time below the infrared lamp tube, and the grid breaking problem caused by excessive heating is reduced; the boundary of the preheating area and the welding area is effectively adjusted and controlled, the problem that the batteries at the junction are prone to over-welding is solved, and meanwhile the uniformity of the welding temperature of the battery pieces is improved.

Description

Technical Field

[0001] The present application relates to the technical field of solar cells, and in particular to a welding temperature control device of a string welding machine. Background Art

[0002] The development of photovoltaic technology has promoted the rapid growth of the photovoltaic industry, and the demand for solar energy equipment has also increased. In the production process of solar modules, solar cells need to be welded into cells by string welding machines. When welding solar cell modules, the welding effect directly determines the service life and energy conversion efficiency of solar cell modules. Therefore, the welding technology of solar cell modules has become an important processing link.

[0003] The battery cells need to be heated by a light source during the string welding process. Specifically, a press is used to heat the soldering ribbon and the battery cells under a high-temperature light source before welding. However, there will be various situations in the heating and welding process that require a short pause in the middle. The following two methods are needed to solve this problem: 1. Turn off the high-temperature light source; 2. Reduce the temperature by reducing the power of the high-temperature light source. However, the above two methods will have the following problems: 1. The high-temperature light source cannot be started and stopped frequently, which will cause damage to the light source. 2. Although the temperature has been reduced, due to the suspension of welding, the battery cells will stay under the heat source and the grid will be broken and over-welded, resulting in a bad string.

[0004] It should be noted that the above content is not necessarily prior art, nor is it intended to limit the scope of patent protection of this application. Utility Model Content

[0005] An embodiment of the present application provides a welding temperature control device for a string welding machine to solve or alleviate one or more of the technical problems mentioned above.

[0006] The embodiment of the present application provides a welding temperature control device of a string welding machine, comprising:

[0007] A support plate, on which a plurality of infrared lamp tubes are arranged;

[0008] A plurality of lampshade components, each of which is rotatably disposed on a support plate, and each of which corresponds to adjusting the width of an irradiation area of ​​a light source emitted by an infrared lamp tube;

[0009] A driving assembly is used to drive each of the lampshade assemblies to rotate on the supporting plate.

[0010] Optionally, the lampshade assembly includes a first lampshade and a second lampshade, both ends of which are rotatably set on a support plate, and the driving assembly is used to drive the first lampshade and the second lampshade to move closer to or away from each other, so as to adjust the width of the irradiation area of ​​the light source emitted by the infrared lamp tube.

[0011] Optionally, the first lampshade includes a first cover body, and two ends of the first cover body are connected to first connecting plates; the second lampshade includes a second cover body, and two ends of the second cover body are connected to second connecting plates;

[0012] A first base and a second base are provided on the support plate, and the infrared lamp tube is located between the first base and the second base; one of the first connecting plates is rotatably connected to the first base, and the other first connecting plate is rotatably connected to the second base; one of the second connecting plates is rotatably connected to the first base, and the other second connecting plate is rotatably connected to the second base.

[0013] Optionally, the driving assembly includes a driving part and an adjusting part, the adjusting part includes an adjusting plate, the adjusting plate is slidably arranged on the supporting plate, the driving part drives the adjusting plate to reciprocate on the supporting plate, a plurality of adjusting column groups are arranged on a side of the adjusting plate facing the infrared lamp tube, the number of the adjusting column groups is the same as that of the lampshade assembly, and the adjusting column groups include a first adjusting column and a second adjusting column;

[0014] The first connecting plate is provided with a first adjusting hole, and the second connecting plate is provided with a second adjusting hole; the first adjusting column is located in the first adjusting hole, and the second adjusting column is located in the second adjusting hole.

[0015] Optionally, the driving unit includes a driving motor and a screw rod, the driving motor is arranged on the support plate to drive the screw rod to rotate, and the screw rod is passed through the adjustment plate and is rotationally connected to the adjustment plate.

[0016] Optionally, the driving part includes a driving cylinder and a piston rod, wherein the driving cylinder is arranged on the support plate to drive the piston rod to extend and retract, one end of the piston rod is connected to the output shaft of the driving cylinder, and the other end is connected to the adjustment plate.

[0017] Optionally, the first adjustment hole and the second adjustment hole are both located on one side of the infrared lamp tube.

[0018] Optionally, the distance between the first adjusting column and the support plate is the same as the distance between the second adjusting column and the support plate.

[0019] Optionally, a light shield is provided on the peripheral side of the infrared lamp tube, and the light shield is located between the infrared lamp tube and the support plate, and the light shield is used to shield the light of the infrared lamp tube from shining in the direction of the support plate.

[0020] Optionally, a plurality of the infrared lamp tubes are evenly spaced and arranged on the support plate.

[0021] The above technical solution adopted in the embodiment of the present application may have the following advantages:

[0022] When a short pause is required during the heating and welding process, there is no need to turn off the infrared lamp tubes or reduce the power of the infrared lamp tubes. By controlling the rotation of the lampshade assembly through the driving assembly, the width and boundary of the irradiation area of ​​each infrared lamp tube can be accurately and effectively adjusted and controlled, and a partition can be instantly formed between the infrared lamp tubes and the battery cell, so that the battery cell can stay under the infrared lamp tube for any time, thereby reducing the problem of broken grid caused by excessive heating; in addition, the boundary between the preheating zone and the welding zone can be accurately and effectively adjusted and controlled to solve the problem of over-welding of the battery at the junction; and the heating effect of the infrared lamp tube is adjusted by the rotating lampshade assembly, thereby improving the uniformity of the welding temperature of the battery cell. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In the accompanying drawings, unless otherwise specified, the same reference numerals throughout the multiple drawings represent the same or similar parts or elements. These drawings are not necessarily drawn to scale. It should be understood that these drawings only depict some embodiments disclosed in the present application and should not be regarded as limiting the scope of the present application.

[0024] Figure 1 It is a schematic diagram of the overall structure of the welding temperature control device provided in an embodiment of the present application.

[0025] Figure 2 It is another overall structural schematic diagram of the welding temperature control device provided in an embodiment of the present application.

[0026] Figure 3 It is a partial structural schematic diagram of the welding temperature control device provided in an embodiment of the present application.

[0027] Figure 4 yes Figure 2 A is an enlarged view of the middle image.

[0028] Description of reference numerals:

[0029] 1. Support plate; 11. First base; 12. Second base; 2. Infrared lamp tube; 21. Light shield; 3. Lampshade assembly; 31. First lampshade; 311. First cover body; 312. First connecting plate; 3121. First adjustment hole; 32. Second lampshade; 321. Second cover body; 322. Second connecting plate; 3221. Second adjustment hole; 4. Drive assembly; 41. Drive unit; 411. Drive motor; 412. Screw rod; 42. Adjustment unit; 421. Adjustment plate; 422. First adjustment column; 423. Second adjustment column. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments and features in the embodiments of the present application can be combined with each other in the absence of conflict. The present application will be described in detail below with reference to the accompanying drawings and in conjunction with the embodiments.

[0031] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the terms used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein, for example. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0032] Hereinafter, exemplary embodiments according to the present application will be described in more detail with reference to the accompanying drawings. It should be noted that these exemplary embodiments can be implemented in many different forms and should not be construed as being limited to the embodiments described herein.

[0033] like Figures 1 to 3 As shown, the welding temperature control device of the stringer of this embodiment is used to be arranged on the stringer to realize the temperature control during the welding process of the battery cells.

[0034] The welding temperature control device of the string welding machine may include: a support plate 1, an infrared lamp tube 2, a lampshade assembly 3 and a driving assembly 4. In some embodiments, the support plate 1 may be a rectangular plate-shaped structure, or may be set to other structures as required.

[0035] The following describes the respective structures and matching relationships of the support plate 1, the infrared lamp tube 2, the lampshade assembly 3 and the driving assembly 4. The infrared lamp tube 2 is detachably arranged on the support plate 1, and the number of infrared lamp tubes 2 is several, and each infrared lamp tube 2 is arranged on one side of the support plate 1. In the embodiment of the present application, several infrared lamp tubes 2 are evenly spaced and arranged on the support plate 1, which effectively improves the uniformity of the welding temperature. The lampshade assembly 3 is rotatably arranged on the support plate 1. In the embodiment of the present application, the number of lampshade assemblies 3 is consistent with the number of infrared lamp tubes 2, and the lampshade assembly 3 is arranged one-to-one with the infrared lamp tube 2, so as to adjust the width of the irradiation area of ​​the light source emitted by the infrared lamp tube 2. The driving assembly 4 is arranged on the support plate 1, and is used to drive each lampshade assembly 3 to rotate on the support plate 1.

[0036] In this embodiment, when a short pause is required during the heating and welding process, there is no need to turn off the infrared lamp tube 2 or reduce the power of the infrared lamp tube 2. By controlling the rotation of the lampshade assembly 3 through the driving assembly 4, the width and boundary of the irradiation area of ​​each infrared lamp tube 2 can be accurately and effectively adjusted and controlled, and a partition can be instantly formed between the infrared lamp tube 2 and the battery cell, so that the battery cell can stay under the infrared lamp tube 2 for any period of time, thereby reducing the problem of broken grid caused by excessive heating; in addition, the boundary between the preheating zone and the welding zone can be accurately and effectively adjusted and controlled to solve the problem of over-welding of the battery at the junction; and the heating effect of the infrared lamp tube 2 is adjusted by the rotating lampshade assembly 3, thereby improving the uniformity of the welding temperature of the battery cell.

[0037] It should be noted that in the embodiment of the present application, the light source irradiated by the infrared lamp tube 2 is partially or completely blocked by rotating the lampshade assembly 3, so that the irradiation area of ​​the infrared lamp tube 2 can be accurately adjusted, that is, the temperature change can be controlled. When the lampshade assembly 3 completely blocks the infrared lamp tube 2, the heat source can be isolated at this time, and the battery cell can stay in an environment without high temperature for a short time, reducing the problem of broken grid, over-welding and bad string caused by the battery cell staying under the heat source.

[0038] In an optional embodiment, the lampshade assembly 3 includes a first lampshade 31 and a second lampshade 32, both ends of which are rotatably arranged on the support plate 1, and the driving assembly 4 is used to drive the first lampshade 31 and the second lampshade 32 to approach each other, so as to gradually block the light source of the infrared lamp tube 2, reduce the width of the area irradiated by the light source, and thus reduce the temperature generated by the infrared lamp tube 2. The driving assembly 4 can also drive the first lampshade 31 and the second lampshade 32 to move away from each other, gradually increase the width of the area irradiated by the light source of the infrared lamp tube 2, and thus increase the temperature generated by the infrared lamp tube 2. By opening and closing the first lampshade 31 and the second lampshade 32 to block the light source of the infrared lamp tube 2, the width and boundary of the irradiation area of ​​each infrared lamp tube 2 can be adjusted and controlled more accurately and effectively, and a partition can be instantly formed between the heat source (infrared lamp tube 2) and the battery cell, so that the battery cell can stay under the heat source for any time, thereby reducing the problem of broken grid caused by overheating.

[0039] In an optional embodiment, the first lampshade 31 includes a first cover body 311, and the first connecting plates 312 are integrally formed at both ends of the first cover body 311; the second lampshade 32 includes a second cover body 321, and the second connecting plates 322 are integrally formed at both ends of the second cover body 321. The first base 11 and the second base 12 are provided on the support plate 1 by screws, and the first base 11 and the second base 12 are provided correspondingly, and the infrared lamp tube 2 is located between the first base 11 and the second base 12. One of the first connecting plates 312 is rotatably connected to the first base 11, and the other first connecting plate 312 is rotatably connected to the second base 12; one of the second connecting plates 322 is rotatably connected to the first base 11, and the other second connecting plate 322 is rotatably connected to the second base 12.

[0040] In this embodiment, the first lampshade 31 is rotatably disposed on the first base 11 and the second base 12 through the first connecting plate 312, thereby realizing the rotation of the first lampshade 31 on the support plate 1, and is used to shield the light source emitted by the infrared lamp tube 2; similarly, the second lampshade 32 is rotatably disposed on the first base 11 and the second base 12 through the second connecting plate 322, thereby realizing the rotation of the second lampshade 32 on the support plate 1. The first lampshade 31 and the second lampshade 32 cooperate with each other to accurately adjust and control the width and boundary of the irradiation area of ​​the light source emitted by the infrared lamp tube 2, distinguish the boundary between the preheating zone and the welding zone, and solve the problem that the battery cell at the junction of the preheating zone and the welding zone is prone to over-welding.

[0041] In an optional embodiment, the driving assembly 4 includes a driving part 41 and an adjusting part 42, and the adjusting part 42 includes an adjusting plate 421, and the adjusting plate 421 is slidably arranged on the support plate 1. The adjusting plate 421 used in the embodiment of the present application can be a rectangular plate-shaped structure. The driving part 41 can drive the adjusting plate 421 to reciprocate on the support plate 1. In the embodiment of the present application, the lower part of the side of the support plate 1 where the infrared lamp tube 2 is installed is the area where the battery cell is welded. Therefore, the driving part 41 can drive the adjusting plate 421 on the support plate 1 to be close to or away from the welding area of ​​the battery cell. A plurality of adjustment column groups are arranged on the side of the adjustment plate 421 facing the infrared lamp tube 2. The number of the adjustment column groups is the same as that of the lampshade assembly 3. The adjustment column groups include a first adjustment column 422 and a second adjustment column 423. In the embodiment of the present application, the distance between the first adjustment column 422 and the support plate 1 is the same as the distance between the second adjustment column 423 and the support plate 1, so as to achieve synchronous adjustment of the first lampshade 31 and the second lampshade 32, and facilitate more accurate adjustment and control of the width of the irradiation area of ​​the infrared lamp tube 2. The two first connecting plates 312 are each provided with a first adjustment hole 3121, and the two second connecting plates 322 are each provided with a second adjustment hole 3221. The first adjustment hole 3121 and the second adjustment hole 3221 are both bar-shaped holes, and the first adjustment hole 3121 and the second adjustment hole 3221 have the same hole length, so as to achieve synchronous adjustment of the first lampshade 31 and the second lampshade 32. The first adjusting column 422 is movably located in the first adjusting hole 3121 , and the second adjusting column 423 is movably located in the second adjusting hole 3221 . In the embodiment of the present application, the first adjusting column 422 and the second adjusting column 423 are located on the same side.

[0042] In this embodiment, when the heat source needs to be isolated, the driving unit 41 is started to make the adjustment plate 421 slide toward the welding area close to the battery cell. At the same time, the first adjustment column 422 and the second adjustment column 423 move in the first adjustment hole 3121 and the second adjustment hole 3221 respectively, so that the first cover body 311 and the second cover body 321 are close to each other until the two are abutted, so that the light source emitted by the infrared lamp tube 2 is isolated in the first cover body 311 and the second cover body 321, and the battery cell that stays will not be under the heat source, reducing the problem of broken grid caused by excessive heating. When the temperature of the heat source needs to be increased, the driving unit 41 drives the adjustment plate 421 to return to its original position. At this time, the first cover body 311 and the second cover body 321 are gradually moved away from each other under the drive of the first adjustment column 422 and the second adjustment column 423, so that the light source emitted by the infrared lamp tube 2 is irradiated on the battery cell, and the width of the irradiation area of ​​the infrared lamp tube 2 is accurately adjusted.

[0043] In an optional embodiment, the driving unit 41 includes a driving motor 411 and a screw rod 412. The driving motor 411 is a unit in an output rotation mode, which can be a servo or stepper motor. In the embodiment of the present application, a servo motor is selected. The driving motor 411 is set on the side of the support plate 1 away from the infrared lamp tube 2 through a screw to drive the screw rod 412 to rotate. The screw rod 412 is passed through the adjustment plate 421 and is rotationally connected to the adjustment plate 421.

[0044] In this embodiment, the driving mode of the driving motor 411 and the screw rod 412 is adopted, so that the first lampshade 31 and the second lampshade 32 can realize continuous adjustment of the width of the irradiation area of ​​the light source emitted by the infrared lamp tube 2, that is, after the infrared lamp tube 2 emits light, the brightness of the light in the specified area can be adjusted to any value within the brightness range of 0 to 100%, thereby further improving the precise and effective adjustment and control of the irradiation area width and boundary of the infrared lamp tube 2, so that the heating effect of the infrared lamp tube 2 on the battery cell can be adjusted, thereby improving the uniformity of the welding temperature.

[0045] In an optional embodiment, a shading cover 21 is provided on the peripheral side of the infrared lamp tube 2. The shading cover 21 is located between the infrared lamp tube 2 and the support plate 1. The shading cover 21 is wrapped around the peripheral side of the infrared lamp tube 2 facing the support plate 1, and is used to block the temperature generated by the infrared lamp tube 2 toward the support plate 1, thereby reducing the temperature of the infrared lamp tube 2 from leaking from the peripheral side and heating the stationary battery cell.

[0046] The difference from the above embodiment is that the driving part 41 includes a driving cylinder and a piston rod. The driving cylinder is arranged on the support plate 1 to drive the piston rod to extend and retract. One end of the piston rod is connected to the output shaft of the driving cylinder, and the other end is connected to the adjustment plate 421. When there is no need to continuously adjust the width of the irradiation area of ​​the infrared lamp tube 2, it is only necessary to adjust the irradiation width of two specific infrared lamp tubes 2, which can be opened and closed at two specific amplitudes. Therefore, the present application can use a driving unit driven in a linear manner. In the embodiment of the present application, a driving cylinder is used, and an electric cylinder driving method can also be used.

[0047] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprising" and / or "including" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0048] For the convenience of description, the orientation or position relationship indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, vertical, horizontal" and "top, bottom" is usually based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description. Unless otherwise stated, these directional words do not 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 cannot be understood as limiting the scope of protection of the present application; the directional words "inside and outside" refer to the inside and outside relative to the outline of each component itself. For example, if the device in the drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Therefore, the exemplary term "above..." can include both "above..." and "below..." orientations. The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used here are interpreted accordingly.

[0049] Unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0050] Unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is lower in level than the second feature.

[0051] Unless otherwise specifically stated, the relative arrangement, numerical expressions and numerical values ​​of the parts and steps set forth in these embodiments do not limit the scope of the present application. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, method and equipment known to those of ordinary skill in the relevant field may not be discussed in detail, but in appropriate cases, the technology, method and equipment should be considered as a part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, so that once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0052] It should also be noted that "one embodiment", "another embodiment", "embodiment", etc. mentioned in this specification refer to the specific features, structures or characteristics described in conjunction with the embodiment included in at least one embodiment generally described in this application. The same expression appearing in multiple places in the specification does not necessarily refer to the same embodiment. Further, when a specific feature, structure or characteristic is described in conjunction with any embodiment, it is claimed that the realization of such feature, structure or characteristic in conjunction with other embodiments also falls within the scope of this application.

[0053] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0054] It should also be noted that the above are only preferred embodiments of the present application, and the patent protection scope of the present application is not limited thereto. Any equivalent structure or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly used in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A welding temperature control device for a string welding machine, characterized in that: include: A support plate (1), wherein a plurality of infrared lamp tubes (2) are arranged on the support plate (1); A plurality of lampshade assemblies (3), each of the lampshade assemblies (3) being rotatably disposed on the support plate (1), and each of the lampshade assemblies (3) correspondingly adjusting the width of the irradiation area of ​​the light source emitted by one of the infrared lamp tubes (2); A driving assembly (4), wherein the driving assembly (4) is used to drive each of the lampshade assemblies (3) to rotate on the supporting plate (1).

2. The welding temperature control device according to claim 1, characterized in that: The lampshade assembly (3) comprises a first lampshade (31) and a second lampshade (32); both ends of the first lampshade (31) and the second lampshade (32) are rotatably disposed on the support plate (1); and the driving assembly (4) is used to drive the first lampshade (31) and the second lampshade (32) to move closer to or farther from each other, so as to adjust the width of the irradiation area of ​​the light source emitted by the infrared lamp tube (2).

3. The welding temperature control device according to claim 2, characterized in that: The first lampshade (31) comprises a first cover body (311), and two ends of the first cover body (311) are connected to first connecting plates (312); the second lampshade (32) comprises a second cover body (321), and two ends of the second cover body (321) are connected to second connecting plates (322); A first base (11) and a second base (12) are provided on the support plate (1), and the infrared lamp tube (2) is located between the first base (11) and the second base (12); one of the first connecting plates (312) is rotatably connected to the first base (11), and the other of the first connecting plates (312) is rotatably connected to the second base (12); one of the second connecting plates (322) is rotatably connected to the first base (11), and the other of the second connecting plates (322) is rotatably connected to the second base (12).

4. The welding temperature control device according to claim 3, characterized in that: The driving assembly (4) comprises a driving part (41) and an adjusting part (42); the adjusting part (42) comprises an adjusting plate (421); the adjusting plate (421) is slidably arranged on the supporting plate (1); the driving part (41) drives the adjusting plate (421) to reciprocate on the supporting plate (1); a plurality of adjusting column groups are arranged on a side of the adjusting plate (421) facing the infrared lamp tube (2); the number of the adjusting column groups is the same as that of the lampshade assembly (3); and the adjusting column groups comprise a first adjusting column (422) and a second adjusting column (423); The first connecting plate (312) is provided with a first adjusting hole (3121), and the second connecting plate (322) is provided with a second adjusting hole (3221); the first adjusting column (422) is located in the first adjusting hole (3121), and the second adjusting column (423) is located in the second adjusting hole (3221).

5. The welding temperature control device according to claim 4, characterized in that: The driving part (41) comprises a driving motor (411) and a screw rod (412); the driving motor (411) is arranged on the support plate (1) and is used to drive the screw rod (412) to rotate; the screw rod (412) is passed through the adjustment plate (421) and is rotationally connected to the adjustment plate (421).

6. The welding temperature control device according to claim 4, characterized in that: The driving part (41) comprises a driving cylinder and a piston rod. The driving cylinder is arranged on the support plate (1) and is used to drive the piston rod to extend and retract. One end of the piston rod is connected to the output shaft of the driving cylinder, and the other end is connected to the adjustment plate (421).

7. The welding temperature control device according to claim 4, characterized in that: The first adjustment hole (3121) and the second adjustment hole (3221) are both located on one side of the infrared lamp tube (2).

8. The welding temperature control device according to claim 4, characterized in that: The distance between the first adjustment column (422) and the support plate (1) is the same as the distance between the second adjustment column (423) and the support plate (1).

9. The welding temperature control device according to any one of claims 1 to 8, characterized in that: A light shield (21) is provided on the circumference of the infrared lamp tube (2), the light shield (21) is located between the infrared lamp tube (2) and the support plate (1), and the light shield (21) is used to shield the light of the infrared lamp tube (2) from shining in the direction of the support plate (1).

10. The welding temperature control device according to any one of claims 1 to 8, characterized in that: A plurality of infrared lamp tubes (2) are evenly spaced and arranged on the support plate (1).

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