Steel belt transmission mechanism and sintering light injection integrated machine

Abstract

The present invention discloses a steel belt transmission mechanism and a sintering light injection integrated machine. The steel belt transmission mechanism comprises two transmission bases arranged opposite each other, one transmission base being provided with a main transmission assembly, and the other transmission base being provided with a slave transmission assembly. Both the main transmission assembly and the slave transmission assembly are provided with a transmission portion for supporting a cell. The transmission portion comprises at least one steel belt in a closed-loop structure, with a supporting plane for supporting the cell being provided on the side of the steel belt facing the cell. A guide structure is further provided between the steel belt and the main transmission assembly and the slave transmission assembly, respectively. The guide structure comprises a plurality of interlocking holes evenly distributed along the length of the steel belt and a plurality of guide protrusions arranged on the main transmission assembly or the slave transmission assembly. During the steel belt transmission process, at least one guide protrusion of the guide structure interlocks with one of the interlocking holes. The steel belt transmission mechanism and sintering light injection integrated machine of the present invention can effectively reduce the risk of scratching the cell during transmission.

Description

Technical Field

[0001] The present invention relates to the technical field of photovoltaic production, and in particular to a steel strip transmission mechanism and a sintering light injection integrated machine. Background Art

[0002] At present, the processing technology for battery cells mainly includes drying, sintering, light injection and cooling processes. In order to realize the flow of battery cells between different process equipment, a transmission device is generally required to transmit the battery cells. The existing transmission devices mostly adopt a transmission roller structure, with multiple transmission rollers arranged in the transmission direction of the battery cells, and ceramic rings for supporting the battery cells are installed on the transmission rollers. When the transmission rollers rotate, the ceramic rings can be driven to rotate, thereby driving the battery cells to move forward. However, the ceramic rings are easily contaminated with impurities such as organic matter during use. During sintering, the contaminated organic matter easily turns black and solidifies on the ceramic rings, resulting in a rough surface of the ceramic rings, which can easily scratch the battery cells when supporting them later. Summary of the Invention

[0003] In order to overcome the above shortcomings, the purpose of the present invention is to provide a steel belt transmission mechanism and a sintering light injection integrated machine, which can effectively reduce the risk of scratching the solar cells during the transmission process.

[0004] To achieve the above objectives, one of the technical solutions adopted by the present invention is: a steel belt transmission mechanism, arranged in a sintering light injection integrated machine, comprising two transmission bases arranged opposite to each other, one transmission base being provided with a main transmission assembly, the other transmission base being provided with a slave transmission assembly, the main transmission assembly and the slave transmission assembly being provided with a transmission portion for supporting a cell; the transmission portion comprises at least one steel belt in a closed loop structure, the side of the steel belt facing the cell being provided with a supporting plane for supporting the cell;

[0005] In addition, a guide structure is provided between the steel belt and the main transmission assembly and the slave transmission assembly respectively; the guide structure includes a number of buckling through holes evenly distributed along the length direction of the steel belt, and a plurality of guide protrusions arranged on the main transmission assembly or the slave transmission assembly; during the transmission of the steel belt, at least one guide protrusion of the guide structure is buckled into one of the buckling through holes.

[0006] The beneficial effects of the steel belt transmission mechanism of the present invention are:

[0007] First, the two transmission bases are provided to achieve stable installation of the main transmission assembly and the slave transmission assembly; then, the main transmission assembly, the slave transmission assembly and the transmission part cooperate to achieve the transmission of the battery cells; in the transmission part, the battery cells are directly supported by the supporting surface of the steel belt, and the flatness of the supporting surface can be used to reduce the friction on the battery cells during the supporting process, thereby reducing the risk of scratching the battery cells during transmission; and the use of the steel belt to transmit the battery cells can avoid the problem of blackening and solidification of the surface of the ceramic ring due to contamination by impurities, ensure the smoothness of the supporting surface, and further reduce the risk of scratching the battery cells;

[0008] In addition, by providing a guide structure between the steel belt and the main transmission assembly and the slave transmission assembly, the connection position of the steel belt and the main transmission assembly and the slave transmission assembly can be limited, so as to reduce the risk of the steel belt running off the main transmission assembly and the slave transmission assembly; at the same time, the phenomenon of the steel belt slipping can be effectively avoided; in the guide structure, through the fastening of the guide protrusion with any fastening through-hole, during the transmission of the steel belt, as the contact position of the steel belt and the main transmission assembly (or the slave transmission assembly) changes, the fastening of at least one guide protrusion with the fastening through-hole can always be maintained, thereby limiting the position between the steel belt and the main transmission assembly or the slave transmission assembly, and ensuring the stability of the steel belt transmission.

[0009] Furthermore, the main transmission assembly includes shafts arranged in one-to-one correspondence with the steel belts, each shaft is equipped with a driving wheel for the steel belt to be wound around, and the driving wheel has multiple guide protrusions distributed along its circumference; all shafts are coaxially arranged, and any two adjacent shafts are connected by a coupling.

[0010] Guide protrusions are evenly distributed on the driving wheel. When a guide protrusion engages with a through-hole, the guide protrusion drives the steel belt as the driving wheel rotates, preventing the steel belt from slipping on the driving wheel. When the guide protrusion rotates away from the through-hole (i.e., the guide protrusion is no longer in contact with the steel belt), other guide protrusions on the driving wheel can engage with other through-holes in the steel belt as the driving wheel rotates, ensuring that at least one guide protrusion is always engaged with a through-hole to drive the steel belt during rotation. In actual design, multiple sets of interlocking guide protrusions and through-holes can be provided between the driving wheel and the steel belt to ensure transmission stability. In addition, the coaxial arrangement of all shafts ensures that the driving wheels are located on the same axis, thereby maintaining consistent transmission strokes for each steel belt. Connecting two adjacent shafts through a coupling ensures that the two shafts rotate synchronously.

[0011] Furthermore, the driving wheel is provided with a keyway along its axial direction, and the shaft is provided with a flat key that matches the keyway. The arrangement of the keyway and the flat key ensures that the driving wheel and the shaft rotate synchronously.

[0012] Specifically, the outermost shaft in the axial direction is connected to a drive member via a timing belt assembly, and the drive member is mounted on a transmission base. The timing belt assembly includes a master and slave synchronous pulleys, with the master synchronous pulley connected to the drive member, and the slave synchronous pulley connected to the shaft. A closed-loop timing belt is wound around both the master and slave synchronous pulleys. Connecting the drive member and the shaft via the timing belt assembly allows the timing belt assembly to buffer vibrations during the drive process, thereby improving drive stability. Exemplarily, the drive member is a reduction motor.

[0013] Furthermore, both the master and slave synchronous pulleys include a wheel body, with flanges coaxially positioned on either side of the wheel body. The flanges have an outer diameter larger than that of the wheel body. The flanges help to define the position of the synchronous belt, preventing it from deviating from the wheel body during transmission.

[0014] Furthermore, the wheel body is meshed with the synchronous belt for transmission, which further improves the stability of the synchronous belt transmission and reduces the slippage of the synchronous belt.

[0015] Specifically, a transmission base includes a baseplate, with a shaft mounted on its upper end and a driver mounted on its lower end. The driver and shaft are connected via a timing belt assembly mounted on one side of the baseplate. Placing the shaft and driver at opposite ends of the baseplate and connecting them with a timing belt assembly allows for a more compact layout of the driver while ensuring the proper functioning of the main transmission assembly, thus reducing the overall size of the device.

[0016] Furthermore, two steel strips are provided, and the distance between the two steel strips is less than the width of the battery cell. The provision of two steel strips not only ensures stable support for the battery cell, but also helps to reduce the overall steel strip material consumption, thus achieving the purpose of cost saving.

[0017] The second technical solution adopted by the present invention is: a sintering and light injection integrated machine, including a drying area, a sintering area, a preheating area, a light injection area, and a cooling area arranged in sequence along the transmission direction of the battery cell, wherein the drying area, the sintering area, the preheating area, and the light injection area are all equipped with the above-mentioned steel belt transmission mechanism.

[0018] The beneficial effects of the sintering light injection integrated machine of the present invention are:

[0019] By arranging the drying area, sintering area, preheating area, light injection area and cooling area in sequence along the transmission direction of the battery cells, continuous processing of the battery cells is achieved, thereby improving the processing efficiency of the battery cells; the setting of the steel belt transmission mechanism realizes the transmission of the battery cells at each work station (drying area, sintering area, preheating area, light injection area and cooling area), so as to facilitate the process processing of the battery cells; and the steel belt transmission mechanism can effectively reduce the risk of scratching the battery cells during the transmission process.

[0020] Specifically, the drying, sintering, preheating, and light injection zones all include a frame mounted with a process box. The process box houses a steel belt conveyor mechanism, with an inlet and outlet connected to the steel belt conveyor mechanism on either side of the process box along the cell conveying direction. The frame also features an inlet guide roller located outside the process box, equipped with two limiting guide rings running along the width of the cell. The inlet guide rollers on the outside of the process box limit and guide the cells entering the process box inlet, ensuring they smoothly enter the pre-set position of the steel belt conveyor mechanism within the process box. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a structural diagram of a steel belt transmission mechanism according to an embodiment of the present invention;

[0022] Figure 2 A partial schematic diagram of a steel belt transmission mechanism according to an embodiment of the present invention;

[0023] Figure 3 Schematic diagram of the structure of the main transmission assembly according to an embodiment of the present invention;

[0024] Figure 4 This is a schematic structural diagram of a driving wheel according to an embodiment of the present invention;

[0025] Figure 5 A schematic structural diagram of a shaft rod according to an embodiment of the present invention;

[0026] Figure 6 This is a schematic structural diagram of a main synchronous wheel according to an embodiment of the present invention;

[0027] Figure 7 This is a schematic structural diagram of a sintering and light injection integrated machine according to an embodiment of the present invention;

[0028] Figure 8 This is a schematic structural diagram of a process box according to an embodiment of the present invention;

[0029] Figure 9 for Figure 8 A partial enlarged view of area A in the middle.

[0030] In the picture:

[0031] 1-sintering and light injection integrated machine; 11-drying area; 12-sintering area; 13-preheating area; 14-light injection area; 15-cooling area; 16-process box; 161-inlet; 17-machine frame; 18-inlet guide roller; 181-limiting guide ring;

[0032] 2-transmission base; 21-base plate; 22-vertical plate;

[0033] 3-main transmission assembly; 31-shaft; 311-flat key; 312-first shaft section; 313-second shaft section; 314-third shaft section; 32-driving pulley; 321-keyway; 33-coupling; 34-driving member; 351-master synchronous pulley; 352-slave synchronous pulley; 353-synchronous belt; 354-rib;

[0034] 4- from the transmission assembly;

[0035] 5-steel belt; 51-supporting plane; 52-toothed surface;

[0036] 6-Guide bumps. DETAILED DESCRIPTION

[0037] The preferred embodiments of the present invention are described in detail below with reference to the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more precise definition of the protection scope of the present invention.

[0038] Example

[0039] See attached Figure 1-2 As shown, a steel belt transmission mechanism of the present invention is installed in a sintering and light injection integrated machine 1. It includes two transmission bases 2 arranged opposite each other. One transmission base 2 is equipped with a main transmission assembly 3, and the other transmission base 2 is equipped with a slave transmission assembly 4. The main transmission assembly 3 and the slave transmission assembly 4 both have a transmission unit for supporting the solar cells. The transmission unit includes at least one steel belt 5 in a closed loop structure. The side of the steel belt 5 facing the solar cells is provided with a supporting surface 51 for supporting the solar cells.

[0040] In addition, a guide structure is provided between the steel belt 5 and the main transmission component 3 and the slave transmission component 4 respectively; the guide structure includes a number of buckling through holes 52 evenly distributed along the length direction of the steel belt 5, and a plurality of guide protrusions 6 arranged on the main transmission component 3 or the slave transmission component 4; during the transmission process of the steel belt 5, at least one guide protrusion 6 of the guide structure is buckled into one of the buckling through holes 52.

[0041] First, the main transmission assembly 3 and the slave transmission assembly 4 are stably installed through the arrangement of two transmission bases 2; and the transmission of the battery cells is realized through the cooperation of the main transmission assembly 3, the slave transmission assembly 4 and the transmission part; in the transmission part, the battery cells are directly supported by the supporting plane 51 of the steel belt 5, and the flatness of the supporting plane 51 can be used to reduce the friction on the battery cells during the supporting process, thereby reducing the risk of scratching the battery cells during the transmission process; and the use of the steel belt 5 to transmit the battery cells can avoid the problem of blackening and solidification of the surface of the ceramic ring due to contamination by impurities, ensure the smoothness of the supporting plane, and further reduce the risk of scratching the battery cells.

[0042] In addition, by providing a guide structure between the steel belt 5 and the main transmission assembly 3 and the slave transmission assembly 4, the connection position of the steel belt 5 and the main transmission assembly 3 and the slave transmission assembly 4 can be limited, so as to reduce the risk of the steel belt 5 running off the main transmission assembly 3 and the slave transmission assembly 4; at the same time, the phenomenon of the steel belt 5 slipping can be effectively avoided; in the guide structure, by fastening the guide protrusion 6 with any fastening through-hole 52, during the transmission process of the steel belt 5, as the contact position of the steel belt 5 with the main transmission assembly 3 (or the slave transmission assembly 4) changes, the fastening of at least one guide protrusion 6 with the fastening through-hole 52 can always be maintained, thereby limiting the position between the steel belt 5 and the main transmission assembly 3 or the slave transmission assembly 4, and ensuring the stability of the transmission of the steel belt 5.

[0043] In some embodiments, see Appendix Figure 2 As shown, two steel strips 5 are provided, and the distance between the two steel strips 5 is less than the width of the battery cell. The provision of two steel strips 5 not only ensures stable support for the battery cell, but also helps to reduce the overall material consumption of the steel strips 5, achieving the purpose of cost saving.

[0044] It should be noted that, in this embodiment, the battery cell transmission direction is defined as the length direction of the battery cell, and correspondingly, the direction perpendicular to the battery cell transmission direction is defined as the width direction of the battery cell.

[0045] In some embodiments, see Appendix Figure 2-3 As shown, the main transmission assembly 3 includes shafts 31, each corresponding to a steel belt 5. Each shaft 31 is equipped with a driving pulley 32 around which the steel belt 5 is wound. All shafts 31 are coaxially arranged and pass through the transmission base 2, with any two adjacent shafts 31 connected by a coupling 33. This coaxial arrangement of all shafts 31 ensures that the driving pulleys 32 are located on the same axis, thereby maintaining a consistent transmission stroke for each steel belt 5. Connecting two adjacent shafts 31 via a coupling 33 ensures that the two shafts 31 rotate synchronously.

[0046] Furthermore, the driving wheel 32 has a plurality of guide protrusions 6 evenly distributed along its circumference, and the arc circumference between two adjacent guide protrusions 6 on the driving wheel 32 is consistent with the spacing between two adjacent fastening holes 52 on the steel belt, so that any two adjacent guide protrusions 6 can be sequentially fastened into two adjacent fastening holes 52. Furthermore, the guide protrusions 6 are spherical in structure, so that the guide protrusions 6 can be smoothly fastened into the fastening holes 52 during the rotation of the driving wheel 32.

[0047] The guide protrusions 6 are evenly distributed on the driving wheel 32. When the guide protrusions 6 are buckled into the buckling through-holes 52, as the driving wheel 32 rotates, the guide protrusions 6 can apply force to the corresponding buckling through-holes 52 to drive the steel belt 5 to transmit, thereby preventing the steel belt 5 from slipping on the driving wheel 32. As the driving wheel 32 rotates, the guide protrusions 6 will rotate to a position away from the corresponding buckling through-holes 52 (that is, the guide protrusions 6 do not contact the steel belt 5). At this time, the other guide protrusions 6 on the driving wheel 32 are buckled into the other buckling through-holes 52 of the steel belt 5 under the rotation of the driving wheel 32 to ensure that during the rotation of the driving wheel 32, there is always at least one guide protrusion 6 that can buckle with the buckling through-holes 52 to drive the steel belt 5 to transmit. In actual design, multiple groups of buckled guide protrusions 6 and buckling through-holes 52 can be provided between the driving wheel 32 and the steel belt 5 to ensure the stability of the transmission.

[0048] Furthermore, in order to ensure the synchronous rotation of the driving wheel 32 and the shaft 31, in some embodiments, see the attached Figure 4-5 As shown, the inner sidewall of the driving wheel 32 is provided with a keyway 321 along its axial direction, and the shaft 31 is provided with a flat key 311 that matches the keyway 321. When the driving wheel 32 is mounted on the shaft 31, the flat key 311 on the shaft 31 can be inserted into the keyway 321. When the shaft 31 rotates, the flat key 311 applies force to the keyway 321, driving the driving wheel 32 to rotate synchronously.

[0049] For further information, see Appendix Figure 5As shown, the shaft 31 includes a middle shaft section, with multiple shaft sections of decreasing radial dimensions coaxially disposed at both ends of the middle shaft section. The middle shaft section is mounted on the transmission base 2, and the radial dimensions of one shaft section on the same side of the middle shaft section match the inner diameter of the driving pulley 32, while the radial dimensions of another shaft section match the inner diameter of the coupling 33. By disposing multiple shaft sections of varying radial dimensions, the structure of the shaft 31 itself enables position-limited installation of components such as the driving pulley 32 and the coupling 33. For example, three shaft sections are disposed at one end of the middle shaft section. For ease of description, the three shaft sections are named, in descending order of radial dimensions, as the first shaft section 312, the second shaft section 313, and the third shaft section 314. The radial dimensions of the second shaft section 313 match the inner diameter of the driving pulley 32, and the radial dimensions of the third shaft section 314 match the inner diameter of the coupling 33. When the driving wheel 32 is mounted on the second shaft section 313, the driving wheel 32 can be limitedly abutted at the intersection of the second shaft section 313 and the first shaft section 312. Since the radial dimensions of the second shaft section 313, the first shaft section 312 and the middle shaft section are different, the driving wheel 32 will not deviate onto the first shaft section 312 and the middle shaft section during the rotation of the driving wheel 32, thereby preventing the driving wheel 32 from contacting the part of the transmission base 2 used to install the middle shaft section during the rotation; similarly, when the coupling 33 is mounted on the third shaft section 314, the coupling 33 will not deviate onto the second shaft section 313.

[0050] In some embodiments, in order to realize the driving of the main transmission assembly 3, a driving member 34 is further installed on the transmission base 2, and the driving member 34 is connected to the outermost shaft 31 along the axial direction of the shaft 31 through a synchronous belt assembly. Figure 3 As shown, the timing belt assembly includes a master synchronous pulley 351 and a slave synchronous pulley 352. The master synchronous pulley 351 is coaxially connected to the output shaft of the driver 34, and the slave synchronous pulley 352 is coaxially connected to the shaft 31. A closed-loop timing belt 353 is wound around both the master synchronous pulley 351 and the slave synchronous pulley 352. Connecting the driver 34 to the shaft 31 with the timing belt assembly can buffer vibrations during the driving process of the driver 34, thereby improving drive stability. For example, the driver 34 is a reduction motor.

[0051] In some embodiments, see Appendix Figure 6 As shown, both the master synchronous pulley 351 and the slave synchronous pulley 352 include a wheel body, with flanges 354 coaxially disposed on either side of the wheel body. The flanges 354 have an outer diameter larger than that of the wheel body. When the timing belt 353 is wound around the wheel body, the flanges 354 on either side help to position the belt 353, thereby preventing the belt 353 from deviating from the wheel body during transmission.

[0052] Furthermore, to prevent slippage during transmission by the synchronous belt 353, in some embodiments, the wheel body engages with the synchronous belt 353 for transmission. Specifically, the outer wall of the wheel body is provided with teeth, and the synchronous belt 353 is provided with a toothed structure that engages with the teeth. This meshing transmission between the wheel body and the synchronous belt 353 further improves the stability of the synchronous belt transmission.

[0053] In some embodiments, see Appendix Figure 3 As shown, the transmission base 2, which houses the main transmission assembly 3, includes a base plate 21. The upper end of the base plate 21 is provided with a plurality of vertical plates 22 for mounting a shaft 31. A drive member 34 is mounted on the lower end, and a timing belt assembly is mounted on one side. The shaft 31 and drive member 34 are positioned at opposite ends of the base plate 21, and the timing belt assembly is used to connect the drive member 34 to the shaft 31. This ensures the proper functioning of the main transmission assembly 3 while making the layout of the drive member 34 more compact, thereby reducing the overall size of the device.

[0054] In some embodiments, the driven transmission assembly 4 includes shafts corresponding to the steel belts 5, each shaft being mounted with a driven pulley around which the steel belts 5 are wound. All shafts are coaxially mounted on the transmission base 2. The driven pulleys and shafts are also connected by a key structure. Guide protrusions 6 are also distributed around the circumference of the driven pulleys, which can be snapped into the snap-on holes 52.

[0055] See attached Figure 7 As shown, the present invention also provides a sintering and light injection integrated machine, including a drying area 11, a sintering area 12, a preheating area 13, a light injection area 14, and a cooling area 15 arranged in sequence along the transmission direction of the battery cell, wherein the drying area 11, the sintering area 12, the preheating area 13, and the light injection area 14 are all provided with the above-mentioned steel belt transmission mechanism.

[0056] By sequentially arranging the drying zone 11, sintering zone 12, preheating zone 13, light injection zone 14, and cooling zone 15 along the transmission direction of the cell, continuous processing of the cell is achieved, thereby improving the processing efficiency of the cell; by setting up a steel belt transmission mechanism, the cell is transmitted at each workstation (drying zone 11, sintering zone 12, preheating zone 13, light injection zone 14), so as to facilitate the process processing of the cell; and the steel belt transmission mechanism can effectively reduce the risk of scratching the cell during the transmission process.

[0057] In order to limit the position of the battery cells during the processing, a guide structure is also provided at each station. Figure 8-9As shown, the drying zone 11, sintering zone 12, preheating zone 13, light injection zone 14, and cooling zone 15 all include a frame 17 on which a process box 16 is mounted. The process box 16 has an inlet 161 and an outlet on either side along the direction of cell transport. The frame 17 near the inlet of the process box 16 is also equipped with an inlet guide roller 18 located outside the process box 16. The inlet guide roller 18 is equipped with two limiting guide rings 181 arranged along the width of the cell. When the cell is transported toward the process box 16, it first passes over the inlet guide roller 18 and is guided by the two limiting guide rings 181 before entering the process box 16.

[0058] The steel belt conveyor mechanism is installed in the process box 16, with its two ends respectively abutting the inlet 161 and outlet of the process box 16. During installation, the position of the steel belt conveyor mechanism and the limiting guide ring 181 are defined according to the size specifications of the battery cells. After being guided by the limiting guide ring 181, the battery cells can enter the steel belt conveyor mechanism of the process box 16 at the preset position, which is conducive to stable transmission on the steel belt conveyor mechanism.

[0059] It should be noted that in the sintering and light injection integrated machine, the process box 16 can be made of related equipment in the prior art, such as an oven for the process box in the drying area and a sintering furnace for the process box in the sintering area.

[0060] The above embodiments are only for illustrating the technical concept and features of the present invention. Its purpose is to enable people familiar with this technology to understand the content of the present invention and implement it. It cannot be used to limit the scope of protection of the present invention. Any equivalent changes or modifications made according to the spirit of the present invention should be included in the scope of protection of the present invention.

Claims

1. A steel belt transmission mechanism, provided in a sintering light injection integrated machine, characterized in that: The invention comprises two transmission bases arranged opposite to each other, one of which is provided with a main transmission assembly, and the other is provided with a slave transmission assembly. The main transmission assembly and the slave transmission assembly are both provided with a transmission part for supporting the battery cell. The transmission part comprises at least one steel belt in a closed loop structure, and the side of the steel belt facing the battery cell is provided with a supporting plane for supporting the battery cell. A guide structure is provided between the steel belt and the main transmission assembly and the slave transmission assembly; the guide structure comprises a plurality of buckling through holes evenly distributed along the length direction of the steel belt, and a plurality of guide protrusions arranged on the main transmission assembly or the slave transmission assembly; during the transmission of the steel belt, at least one guide protrusion of the guide structure can be buckled into one of the buckling through holes. The main transmission assembly includes shafts corresponding to the steel belts, each shaft is equipped with a driving wheel for winding the steel belt, and the driving wheel is evenly distributed with a plurality of guide protrusions along its circumference; all the shafts are coaxially arranged, and any two adjacent shafts are connected by a coupling. Two steel strips are provided, and the distance between the two steel strips is smaller than the width of the battery cell.

2. The steel strip transmission mechanism according to claim 1, characterized in that: The driving wheel is provided with a keyway along its axial direction, and the shaft is provided with a flat key matching the keyway.

3. The steel strip transmission mechanism according to claim 1, characterized in that: The shaft rod located at the outermost side in the axial direction is connected to the driving member through a synchronous belt assembly, and the driving member is installed on the transmission base; the synchronous belt assembly includes a main synchronous wheel and a slave synchronous wheel, the main synchronous wheel is connected to the driving member, and the slave synchronous wheel is connected to the shaft rod; and a synchronous belt with a closed loop structure is wound around the main synchronous wheel and the slave synchronous wheel.

4. The steel strip transmission mechanism according to claim 3, characterized in that: The master synchronous wheel and the slave synchronous wheel both include a wheel body. The wheel body is coaxially provided with ribs on both sides along the axial direction. The outer diameter of the ribs is larger than the outer diameter of the wheel body.

5. The steel strip transmission mechanism according to claim 4, characterized in that: The wheel body is meshed with the synchronous belt for transmission.

6. The steel strip transmission mechanism according to any one of claims 1 to 5, characterized in that: One of the transmission bases includes a base plate, the shaft is mounted on the upper end of the base plate, the driving member is mounted on the lower end of the base plate, and the driving member and the shaft are connected via a synchronous belt assembly mounted on one side of the base plate.

7. A sintering light injection integrated machine, characterized by: It includes a drying zone, a sintering zone, a preheating zone, a light injection zone, and a cooling zone arranged in sequence along the transmission direction of the battery cell, wherein the drying zone, the sintering zone, the preheating zone, and the light injection zone are all provided with the steel belt transmission mechanism described in any one of claims 1-6.

8. The sintering and light injection integrated machine according to claim 7, characterized in that: The drying area, sintering area, preheating area, and light injection area all include a frame with a process box installed, the steel belt transmission mechanism is provided in the process box, and the process box is provided with an inlet and an outlet connected to the steel belt transmission mechanism on both sides along the battery cell transmission direction; the frame is also provided with an inlet guide roller located outside the process box, and the inlet guide roller is provided with two limiting guide rings arranged along the width direction of the battery cell.

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