Battery piece turnover mechanism

Abstract

The utility model provides a battery piece turnover mechanism. The battery piece turnover mechanism comprises a turnover module and an adsorption module, wherein the overturning module comprises an overturning shaft, a driving part connected to one end of the overturning shaft and used for driving the overturning shaft to rotate, and at least one pair of overturning parts connected to the two sides of the overturning shaft, each overturning part comprises two overturning rods arranged on the same side of the overturning shaft at intervals, and the overturning rods are aligned with gaps between the two adjacent non-conductive adhesive wires; the adsorption module comprises a vacuum part and at least one pair of adsorption parts communicated with the vacuum part, and each adsorption part comprises a plurality of suction cups arranged on the two overturning rods and used for adsorbing the first surface of the battery piece; the battery piece turnover mechanism provided by the utility model can achieve the effect of preventing the non-conductive slurry on the battery piece from being scratched in the turnover process.

Description

Technical Field

[0001] The utility model belongs to the technical field of battery slice processing equipment, and more specifically, relates to a battery slice flipping mechanism. Background Art

[0002] With the advent of the N-type battery era, multiple technological changes such as multi-busbar + thinning are being made. The core idea of ​​the development of multi-busbar technology is "more" and "thinner", that is, increasing the number of busbars and reducing the width of the busbar, thereby reducing the use of silver paste, increasing the light-receiving area, and reducing resistance loss. In the future, the number of busbars will be further increased and the width of the busbar will be reduced along the development idea of ​​multi-busbars. Copper wire welding strips will be used to directly connect the fine grids to collect current and realize battery interconnection, and the traditional busbar on the front of the battery will be cancelled. This technology is busbar-free technology. Busbar-free (0BB) is mainly divided into three solutions: SmartWire, dispensing, and welding dispensing. However, each solution now has defects that cannot be solved in a short time. At present, all 0BB equipment manufacturers are in the research and development stage, and the terminal customer component manufacturers are about to start testing. Traditional welding strip (SMBB) string welding equipment still occupies the mainstream of the market. Traditional SMBB string welding is the use of battery cell busbars and metal wires through silver paste welding in the manufacturing process of battery strings, but because the process is immature, it has not been fully promoted in the market.

[0003] In view of the above situation, the inventor of the present application has attempted to develop a new type of SMBB series welding, which involves a non-conductive paste (NCP) printing line and process in the first half of the SMBB series welding. The non-conductive paste on the first side is printed first, flipped, and then the non-conductive paste on the second side is printed. In this process, the front and back sides of the battery cell need to be printed with non-conductive paste. However, the existing flipping mechanism includes a card slot or a clip for positioning the battery cell. When flipping, the battery cell must first be inserted into the card slot or the battery cell must be clamped in the clip, and then the card slot or the clip is used to drive the battery cell to flip over. However, this positioning method of surface contact with the battery cell through the positioning structure can easily bump against the NCP (non-conductive paste) silk-screened on the battery cell.

[0004] Therefore, how to flip the battery cell printed with non-conductive paste without scratching the printed non-conductive paste has become one of the technical problems to be overcome. Utility Model Content

[0005] The utility model aims to provide a battery cell flipping mechanism to solve the problem that the existing flipping mechanism is positioned in a manner that the positioning structure is in surface contact with the battery cell, and the non-conductive paste printed on the battery cell is easily scratched.

[0006] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: to provide a cell flipping mechanism for flipping a cell that has completed printing on the first surface, wherein the first surface of the cell is printed with a plurality of non-conductive adhesive lines arranged at intervals, and the cell flipping mechanism comprises:

[0007] A flip module, comprising a flip shaft, a driving component connected to one end of the flip shaft for driving the flip shaft to rotate, and at least one pair of flip parts connected to both sides of the flip shaft, wherein the flip parts comprise two flip rods spaced apart and arranged on the same side of the flip shaft, and the flip rods are aligned with the gap between two adjacent non-conductive rubber lines;

[0008] The adsorption module comprises a vacuum component and at least one pair of adsorption parts connected to the vacuum component, wherein the adsorption parts comprise a plurality of suction cups arranged on the two flip rods for adsorbing the first surface of the battery sheet.

[0009] Furthermore, fixed rows are provided on both sides of the flip shaft, and the flip rod is installed on the flip shaft through the fixed rows.

[0010] Furthermore, two or four turning rods are installed on the fixed row.

[0011] Furthermore, the flip rod is hollow inside, and a ventilation channel connecting the vacuum component and the flip rod is provided in the fixed row.

[0012] Furthermore, the vacuum component includes a vacuum pump and a ventilation pipe, wherein the ventilation pipe is communicated with the vacuum pump and the fixed row respectively.

[0013] Furthermore, the cell flipping mechanism also includes a first stand and a second stand connected to both ends of the flipping axis, and the driving component and the vacuum pump are mounted on the first stand.

[0014] Furthermore, the driving component includes a motor mounted on the first stand, a driving wheel connected to the output shaft of the motor, a driven wheel sleeved on one end of the flip shaft, and a synchronous belt connecting the driving wheel and the driven wheel.

[0015] Furthermore, the driven wheel is mounted on the top of the first stand, the first end of the flip shaft is connected to the driven wheel, and the second end of the flip shaft away from the driven wheel is rotatably connected to the top of the second stand.

[0016] Furthermore, the battery cell flipping mechanism also includes a base, and the first stand and the second stand are installed on the base.

[0017] Furthermore, four suction cups are provided on the flip rod.

[0018] The beneficial effect of the battery cell flipping mechanism provided by the utility model is that: compared with the prior art, the battery cell flipping mechanism provided by the utility model is used to flip the battery cell that has completed the first surface printing, and by aligning the flip rod of the flip module with the gap between two adjacent non-conductive glue lines on the battery cell, the flip rod and the multiple suction cups arranged thereon can completely avoid the non-conductive paste on the battery cell, thereby preventing the non-conductive paste on the battery cell from being scratched during the flipping process. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0020] Figure 1 A schematic diagram of the structure of a battery cell flipping mechanism provided in an embodiment of the utility model.

[0021] Figure 2 A schematic diagram of the structure of the first surface of a battery cell provided by an embodiment of the utility model;

[0022] Among them, the main marks of the drawings in the figure are:

[0023] 100, battery cell flipping mechanism; 1, bottom plate; 2, stand; 21, first stand; 22, second stand; 3, driving component; 31, motor mounting plate; 32, motor; 331, driven wheel; 332, synchronous belt; 4, flip shaft; 5, flip part; 51, first flip part; 52, second flip part; 500, flip rod; 6, fixed row; 61, first fixed row; 62, second fixed row; 7, vacuum component; 71, vacuum pump; 72, ventilation main pipe; 73, first ventilation branch pipe; 74, second ventilation branch pipe; 8, adsorption part; 81, first adsorption part; 82, second adsorption part; 800, suction cup; 900, battery cell; 9, non-conductive adhesive wire. DETAILED DESCRIPTION

[0024] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0025] The inventor of this application attempts to develop a new type of SMBB string welding. In the first half of the SMBB string welding, a non-conductive paste (NCP) printing line and process are involved. The non-conductive paste on the first side is printed first, flipped, and then the non-conductive paste on the second side is printed. In this process, since the non-conductive paste needs to be printed on both sides of the cell, how to flip the cell printed with the non-conductive paste without scratching the printed non-conductive paste has become one of the technical problems to be overcome. In response to this, the utility model provides a new cell flipping mechanism that can achieve the effect of preventing the non-conductive paste on the cell from being scratched during the flipping process.

[0026] Please also read Figure 1 The cell flipping mechanism 100 provided in this embodiment includes two stands 2, a bottom plate 1, a flipping module and an adsorption module, wherein:

[0027] The two stands 2 include a first stand 21 and a second stand 22 , and the first stand 21 and the second stand 22 are fixed to two sides of the bottom plate 1 by screws.

[0028] A plurality of mounting holes are provided on the bottom plate 1, so that it is convenient to select a suitable position to install two stands 2. A bottom plate 1 with a large area can also be selected to increase the counterweight and increase the stability of the flip mechanism support.

[0029] The flip module includes a driving component 3, a flip shaft 4 and at least one pair of flip parts 5. The first end of the flip shaft 4 is rotatably connected to the top of the first stand 21, and the second end of the flip shaft 4 is rotatably connected to the top of the second stand 22. The driving component 3 is connected to one end of the flip shaft 4, and the driving component 3 drives the flip shaft 4 to rotate, thereby driving the flip part 5 to rotate around the flip shaft 4. In practical applications, the flip module may include one or two pairs of flip parts 5, each pair of flip parts 5 is fixedly connected to both sides of the flip shaft 4, and each flip part 5 includes two flip rods 500 arranged at intervals on the same side of the flip shaft 4, and the flip rods 500 are hollow inside.

[0030] The driving component 3 includes a motor mounting plate 31, a motor 32 and a synchronous belt transmission assembly. The motor mounting plate 31 is mounted on the first stand 21, the motor 32 is detachably mounted on the motor mounting plate 31, and the output shaft of the motor 32 passes through the motor mounting plate 31 from one side of the motor mounting plate 31 and exposes the end of the output shaft. The synchronous belt transmission assembly includes a driving wheel (not shown in the figure), a driven wheel 331 and a synchronous belt 332. The driving wheel is mounted on the end of the output shaft of the motor 32, the driven wheel 331 is mounted on the top of the first stand 21, the driven wheel 331 is also connected to the first end of the flip shaft 4, and the synchronous belt 332 is respectively connected to the driving wheel and the driven wheel 331. The synchronous belt transmission assembly is driven by the motor 32 to rotate forward and reverse, driving the flip shaft 4 to rotate forward and reverse, thereby generating a flip function.

[0031] The side of the flip shaft 4 is processed and cut into four planes to facilitate opening holes for installing the flip rod 500 and the ventilation pipe in the adsorption module. Fixed rows 6 are provided on both sides of the flip shaft 4, and the flip rod 500 is installed on the flip shaft 4 through the fixed rows 6. The fixed rows 6 are provided with ventilation channels connecting the vacuum component 7 and the flip rod 500.

[0032] The adsorption module includes a vacuum component 7 and at least one pair of adsorption parts 8 for adsorbing the battery cell 900, and each adsorption part 8 is connected to the vacuum component 7. Among them, the adsorption part 8 corresponds to the flip part 5 one by one, and each adsorption part 8 includes a plurality of suction cups 800 arranged on two flip rods 500. The vacuum component 7 includes a vacuum pump 71 and a vent pipe, and the vent pipe is connected to the vacuum pump 71 and the fixed row 6 respectively. The installation position of the vacuum pump 71 can be flexibly designed, and the vacuum pump 71 can be detachably installed on the bottom plate 1, or the vacuum pump 71 can be detachably installed on the bottom of the first stand 21. Installing the vacuum pump 71 on the first stand 21 can make the pipeline line of the vacuum component 7 as short as possible.

[0033] For better understanding, the battery cell 900, the battery cell flipping mechanism 100 and their working principles are described in more detail below in combination with actual application scenarios:

[0034] The battery cell 900 includes a first surface and a second surface (such as a front surface and a back surface) that are arranged opposite to each other. Figure 2 , Figure 2 Schematic diagram of the first surface of the battery cell 900 , showing that the first surface of the battery cell 900 is printed with a plurality of non-conductive adhesive lines 9 arranged at intervals.

[0035] It should be noted that the first half of the SMBB series welding involves a non-conductive paste (NCP) printing line and process, that is, firstly printing the non-conductive paste on the first surface of the battery cell 900, then flipping the battery cell 900, and then printing the non-conductive paste on the second surface of the battery cell 900. The battery cell flipping mechanism 100 provided in this embodiment is used to flip the battery cell 900 printed on the first surface, and the battery cell flipping mechanism 100 can avoid the non-conductive paste on the battery cell 900, so as to achieve the effect of not bumping against the non-conductive paste during the flipping process.

[0036] See also Figure 1 , Figure 1 The schematic diagram of the structure of the battery cell flipping mechanism 100 provided in this embodiment includes two stands 2, a bottom plate 1, a flipping module and an adsorption module.

[0037] Two stands 2 are fixed on both sides of the bottom plate 1 by screws, namely a first stand 21 and a second stand 22. The first stand 21 is equipped with a flip module and an adsorption module, and the outer side of the second stand 22 is equipped with a reducer.

[0038] The flip module includes a driving component 3, a flip shaft 4 and two pairs of flip parts 5. The driving component 3 includes a motor mounting plate 31, a motor 32 and a synchronous belt transmission assembly. The motor mounting plate 31 is mounted on the first stand 21, and the motor 32 is detachably mounted on the motor mounting plate 31. The output shaft of the motor 32 passes through the motor mounting plate 31 from one side of the motor mounting plate 31 and exposes the end of the output shaft. The driving wheel of the synchronous belt transmission assembly is mounted at the end of the output shaft of the motor 32, and the driven wheel 331 of the synchronous belt transmission assembly is mounted at the top of the first stand 21. The synchronous belt 332 of the synchronous belt transmission assembly connects the driving wheel and the driven wheel 331. The first end of the flip shaft 4 is connected to the driven wheel 331, and the second end of the flip shaft 4 away from the driven wheel 331 is connected to the top of the second stand 22. Two fixed rows 6 are provided on both sides of the flip shaft 4, namely the first fixed row 61 and the second fixed row 62, and ventilation channels are provided in the first fixed row 61 and the second fixed row 62. Each pair of flip parts 5 includes a first flip part 51 and a second flip part 52 disposed on both sides of the flip shaft 4. The two flip rods 500 of the first flip part 51 are mounted on the flip shaft 4 through the first fixed row 61, and the two flip rods 500 of the second flip part 52 are mounted on the flip shaft 4 through the second fixed row 62. Since two pairs of flip parts 5 are disposed on the flip shaft 4, four flip rods 500 are respectively mounted on the first fixed row 61 and the second fixed row 62. The flip rods 500 are hollow inside, and the ventilation channels in the first fixed row 61 and the second fixed row 62 can communicate with the inside of each flip rod 500.

[0039] In this embodiment, the feeding mode of the assembly line is double-track double-sheet, and two pairs of flipping parts 5 are provided to achieve simultaneous flipping of two battery cells 900. At the same time, this embodiment has certain requirements for the distance between the two flipping rods 500 of each flipping part 5, that is, the distance between the two flipping rods 500 is required to be sufficient to avoid the non-conductive slurry of the battery cell 900. The flipping rod 500 is aligned with the gap between two adjacent non-conductive adhesive lines 9 on the battery cell 900, so as to prevent the non-conductive slurry from being bumped during the flipping process.

[0040] The adsorption module includes a vacuum component 7 and two pairs of adsorption parts 8. Each pair of adsorption parts 8 includes a first adsorption part 81 and a second adsorption part 82 arranged on both sides of the flip shaft 4, the first adsorption part 81 includes a plurality of suction cups 800 arranged on two flip rods 500 of the first flip part 51 for adsorbing the battery cell 900, and the second adsorption part 82 includes a plurality of suction cups 800 arranged on two flip rods 500 of the second flip part 52 for adsorbing the battery cell 900. The vacuum component 7 includes a vacuum pump 71, a ventilation main pipe 72, a first ventilation branch pipe 73 and a second ventilation branch pipe 74. The ventilation main pipe 72 is arranged on one side of the driven wheel 331, the first ventilation branch pipe 73 is arranged on the other side of the driven wheel 331, and the second ventilation branch pipe 74 is connected to the ventilation main pipe 72. The second ventilation branch pipe 74 is installed on the second fixed row 62 . The second ventilation branch pipe 74 is connected to the ventilation pipe in the second fixed row 62 . The first ventilation branch pipe 73 is connected to the ventilation pipe in the first fixed row 61 .

[0041] In this embodiment, the distance between the suction cups 800 on each flip rod 500 can be designed according to the size of the battery cell 900. By providing a separate flip rod 500 and dispersed suction cups 800, the purpose of preventing the non-conductive slurry on the battery cell 900 from being bumped is achieved.

[0042] The working principle of the cell flipping mechanism 100 is as follows: after the printer prints the non-conductive paste on the first surface of the cell 900, the material is discharged from the conveying end of the printer, and the cell flipping mechanism 100 is located at the end of the output end of the printer. The four flipping rods 500 of the two first flipping parts 51 are all located above the conveying rail. When the two cell 900 are transferred to the end of the conveying rail, the cell flipping mechanism 100 controls the vacuum pump 71 to suck air, and the suction cups 800 on the four flipping rods 500 suck the two cell 900 located on the conveying rail. At this time, the positions of the flipping rods 500 and the suction cups 800 completely avoid the position of the non-conductive paste on the cell 900. The motor 32 controls the flipping shaft 4 to rotate, driving the flipping rods 500 to rotate, thereby driving the two cell 900 to flip. After the two battery cells 900 are flipped 180°, the four flip rods 500 of the two first flip parts 51 are just located at the feeding and conveying end of another printing machine. At this time, the vacuum pump 71 is controlled to deflate, and the two battery cells 900 are not adsorbed by the suction cup 800. The feeding and conveying module of another printing machine is used to transport the two battery cells 900 from the flip rods 500 to the feeding and conveying rail. At this time, the second surface of the battery cell 900 is facing up, and the printing of the second surface continues. Subsequently, the motor 32 controls the flip shaft 4 to reverse, driving the four flip rods 500 of the two first flip parts 51 to reverse, and the four flip rods 500 return to the output end of the printing machine to continue to adsorb and flip the battery cells 900. The process of the four flip rods 500 of the two second flip parts 52 adsorbing and flipping the battery cells 900 is similar to that of the four flip rods 500 of the two first flip parts 51, which will not be repeated here. When the four flipping rods 500 of the two first flipping parts 51 deliver the flipped two battery cells 900 to the feeding and conveying end of another printing machine, the four flipping rods 500 of the two second flipping parts 52 just absorb the two battery cells 900 to be flipped, which can improve the flipping efficiency.

[0043] The utility model adopts a 180-degree flipping mode for the module handling and flipping mechanism, and a separate flipping rod and dispersed suction cups are arranged for the battery cell flipping mechanism, so as to prevent the non-conductive slurry from being bumped during the flipping process.

[0044] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A battery cell flipping mechanism, characterized in that: Used to flip a battery cell that has completed printing on the first surface, wherein the first surface of the battery cell is printed with a plurality of non-conductive adhesive lines arranged at intervals, and the battery cell flipping mechanism comprises: A flip module, comprising a flip shaft, a driving component connected to one end of the flip shaft for driving the flip shaft to rotate, and at least one pair of flip parts connected to both sides of the flip shaft, wherein the flip parts comprise two flip rods spaced apart and arranged on the same side of the flip shaft, and the flip rods are aligned with the gap between two adjacent non-conductive rubber lines; The adsorption module comprises a vacuum component and at least one pair of adsorption parts connected to the vacuum component, wherein the adsorption parts comprise a plurality of suction cups arranged on the two flip rods for adsorbing the first surface of the battery sheet.

2. The battery cell flipping mechanism according to claim 1, characterized in that: Fixed rows are arranged on both sides of the flip shaft, and the flip rod is installed on the flip shaft through the fixed rows.

3. The battery cell flipping mechanism according to claim 2, characterized in that: Two or four turning rods are installed on the fixed row.

4. The battery cell flipping mechanism according to claim 2, characterized in that: The flip rod is hollow inside, and a ventilation channel connecting the vacuum component and the flip rod is arranged in the fixed row.

5. The battery cell flipping mechanism according to claim 4, characterized in that: The vacuum component includes a vacuum pump and a vent pipe, wherein the vent pipe is communicated with the vacuum pump and the fixed row respectively.

6. The battery cell flipping mechanism according to claim 5, characterized in that: The battery cell flipping mechanism also includes a first stand and a second stand connected to both ends of the flipping shaft, and the driving component and the vacuum pump are installed on the first stand.

7. The battery cell flipping mechanism according to claim 6, characterized in that: The driving component includes a motor installed on the first stand, a driving wheel connected to the output shaft of the motor, a driven wheel sleeved on one end of the flip shaft, and a synchronous belt connecting the driving wheel and the driven wheel.

8. The battery cell flipping mechanism according to claim 7, characterized in that: The driven wheel is installed on the top of the first stand, the first end of the flip shaft is connected to the driven wheel, and the second end of the flip shaft away from the driven wheel is rotatably connected to the top of the second stand.

9. The battery cell flipping mechanism according to claim 6, characterized in that: The battery cell flipping mechanism also includes a base, and the first stand and the second stand are installed on the base.

10. The battery cell flipping mechanism according to claim 1, characterized in that: Four suction cups are arranged on the flip rod.

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