Cell batch cutting device

Abstract

The present invention discloses a battery cell batch cutting device, belonging to the field of battery cell production technology. A slitting assembly, a rotating table installed on the slitting assembly, a supporting assembly and a plurality of top supporting assemblies, a storage box is fixedly installed on the rotating table, a plurality of cutting grooves are provided on the storage box, and the plurality of cutting grooves divide the storage box into a plurality of supporting areas, and two groups of hydraulic cylinders are fixedly installed on the rotating table; the output shaft of the hydraulic cylinder is fixedly connected to the corresponding lifting frame, and a limiting plate is fixedly installed on the slitting assembly for limiting the U-shaped frame. In the present invention, after the U-shaped frame releases the pressure on the slit battery cells, the elastically arranged power roller and driven roller can continue to press the battery cells, avoiding the cross-confusion of the slit battery cells after the U-shaped frame is detached, and at the same time, the power roller and the top plate cooperate to transport the slit battery cells one by one out of or into the storage box, thereby realizing the automatic unloading and loading process.

Description

Technical Field

[0001] The present invention relates to the technical field of battery cell production, and more specifically, to a battery cell batch cutting device. Background Art

[0002] As a semiconductor device that converts light into electrical energy, the battery cell is one of the core components in the photovoltaic power generation system. In order to reduce the power loss of the battery cell, the half-cut technology is used to cut the battery cell to increase the output power and power generation. The battery cell is cut by laser equipment, and only one cell can be cut at a time.

[0003] The document with the prior art publication number CN112614796A provides a battery cell batch cutting device, which achieves the effect of batch cutting of stacked battery cells by wire cutting, but still has the following defects: 1. When the battery cells are taken out after cutting, the battery cell pressing head is separated from the pressing of the battery cells, and a slight shake will cause different groups of battery cells to cross and mess with each other (the complete battery cells have chamfers at the corners), and the messed battery cells need to be separated one by one later, which increases the difficulty of subsequent operations and production time; 2. It is difficult to put the battery cells in and out of the material box, and it is not easy to operate; 3. After a single cutting is completed, the machine needs to be stopped to replace a new material box, resulting in continuous production process. In view of this, we propose a battery cell batch cutting device. Summary of the invention

[0004] The object of the present invention is to provide a battery cell batch cutting device, which solves at least one of the above-mentioned technical problems and realizes that the battery cells can be continuously pressed when loading and unloading the material box to ensure the stability of the battery cell transportation.

[0005] The embodiment of the present invention provides a battery cell batch cutting device, comprising a slitting assembly, a rotating table mounted on the slitting assembly, a supporting assembly and a plurality of top supporting assemblies, wherein two groups of material storage boxes symmetrically distributed about the rotating axis of the rotating table are fixedly mounted on the rotating table, a plurality of cutting grooves are opened on the material storage box, and the plurality of cutting grooves divide the material storage box into a plurality of supporting areas, and two groups of hydraulic cylinders are fixedly mounted on the rotating table;

[0006] The support assembly includes a lifting frame and a plurality of top plates, the hydraulic cylinder output shaft is fixedly connected to the corresponding lifting frame, the lifting frame is slidably connected to the rotating table, and a pressure plate is fixedly installed on the top of the lifting frame;

[0007] Each supporting area corresponds to at least one top plate, a plurality of guide rods are fixedly installed below the top plate, the bottom of the guide rods are slidably connected with guide tubes, and the guide tubes are fixedly installed on the lifting frame;

[0008] The top support assembly includes a U-shaped frame, a rotatable power roller and a plurality of driven rollers, one end of the plurality of U-shaped frames is located below the pressure plate, the power roller and the plurality of driven rollers are elastically mounted on the U-shaped frame through a second elastic member, and the U-shaped frame is elastically mounted on a fixed plate of the storage box through a third elastic member;

[0009] A limiting plate is fixedly installed on the cutting assembly to limit the position of the U-shaped frame.

[0010] As an optional solution of the technical solution of the document of the present invention, a laser sensor is fixedly installed on the U-shaped frame, and the laser sensor is used to detect the height of the stacked battery cells. The laser sensor and the power roller are both located at one end of the U-shaped frame close to the cutting groove, and the surfaces of the power roller and the driven roller are wrapped with rubber.

[0011] As an optional solution of the technical solution of the document of the present invention, the height of the limit plate is greater than the height of the U-shaped frame when pressing the battery cell, and the limit plate is located on the upper side of the storage box for non-cutting operations.

[0012] As an optional solution to the technical solution of the document of the present invention, the slitting assembly includes a fixed seat and a wire cutting machine. The wire cutting machine is slidably installed on the fixed seat through a guide rail. An electric slide is fixedly installed on the fixed seat. The output end of the electric slide is fixedly connected to the wire cutting machine. The electric slide is used to drive the wire cutting machine to move along the guide rail and cut the battery cells through the cutting line.

[0013] As an optional solution of the technical solution of the document of the present invention, the wire cutting machine includes a housing, a plurality of pay-off rollers, a plurality of take-up rollers, two sets of transmission rollers and a plurality of tension wheels, the housing is slidably connected to the fixed seat, and the output shaft of the electric slide is fixedly connected to the housing;

[0014] A plurality of pay-off rollers and a plurality of take-up rollers are rotatably mounted on the casing and connected to corresponding driving devices. The pay-off roller and the corresponding take-up roller rotate synchronously. The transmission roller is rotatably connected to the casing. The tensioning wheel is located between the two transmission rollers. The tensioning wheel is used for pressure detection and adjustment.

[0015] The housing is rotatably connected to a plurality of telescopic cylinders and a plurality of connecting rods, the output shafts of the telescopic cylinders are rotatably connected to the connecting rods, and one end of the connecting rods away from the telescopic cylinders is rotatably connected to two sets of first wire wheels;

[0016] A plurality of second wire wheels are rotatably connected to the housing, and the first wire wheel and the second wire wheel are used to adjust the direction of the cutting line contacting the battery sheet.

[0017] As an optional solution of the technical solution of the document of the present invention, the cutting groove includes a first cutting groove, a second cutting groove and a third cutting groove, the first cutting groove and the third cutting groove each correspond to a 1 / 3 cutting line and a 1 / 4 cutting line, the second cutting groove corresponds to a 1 / 2 cutting line and a 1 / 4 cutting line, and the 1 / 2 cutting line and the 1 / 4 cutting line of the second cutting groove coincide.

[0018] By adopting the above technical solution, the 1 / 2 cutting line will divide the battery cell placed in the storage box into two pieces. Similarly, several 1 / 3 cutting lines will divide the battery cell into three pieces, and several 1 / 4 cutting lines will divide the battery cell into four pieces. Each cutting line position corresponds to a cutting line on the wire cutting machine.

[0019] As an optional solution of the technical solution of the document of the present invention, a material control groove is opened on the top of the material storage box, and the material control groove is located on one side of the material storage box close to the cutting groove;

[0020] A fixing frame is fixedly mounted on the material storage box, and the material storage box is fixedly mounted on a corresponding supporting plate on the rotating platform through the fixing frame, and a plurality of fixing plates are fixedly mounted on the fixing frame, and the fixing plates are located above the material storage box.

[0021] As an optional solution of the technical solution of the document of the present invention, a plurality of guide holes are opened on the storage box, and the guide rods are slidably connected with the guide holes;

[0022] A first elastic member is sleeved in the guide tube, one end of the first elastic member is fixedly connected to the guide tube, and the other end is fixedly connected to the guide rod, a limit block is fixedly installed on the guide rod, and the first elastic member is used to make the top of the guide tube fit with the limit block.

[0023] As an optional solution of the technical solution of the document of the present invention, there is at least one group of U-shaped frames corresponding to each of the support areas, and a plurality of through holes are opened on the U-shaped frames, and limiting grooves are opened on both sides of the through holes, and the adjustment block is slidably matched with the limiting grooves, one end of the second elastic member is fixedly connected to the U-shaped frame, and the other end is fixedly connected to the adjustment block, and the power roller and a plurality of driven rollers are rotatably connected to the corresponding adjustment blocks.

[0024] As an optional solution of the technical solution of the document of the present invention, the top support assembly also includes a plurality of sleeves and connecting rods slidably connected to the sleeves, one end of the sleeves is fixedly mounted on the corresponding fixed plate, one end of the connecting rod is fixedly mounted on the U-shaped frame, and the third elastic member is sleeved on the sleeve, one end of the third elastic member is fixedly connected to the U-shaped frame, and the other end is fixedly connected to the fixed plate.

[0025] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0026] 1. The present invention switches the two material storage box stations through a rotating table, so that the cutting, loading and unloading processes are carried out synchronously, reducing the process waiting time and improving production efficiency.

[0027] The present invention rotates the storage box of the battery slices after cutting to the bottom of the limit plate, and the output shaft of the hydraulic cylinder drives the lifting frame and the pressure plate to rise, the guide tube rises and contacts with the limit block and drives the guide rod to rise, and the guide rod pushes the top plate to rise, so that the uppermost battery slice is higher than the height of the control slot, and at the same time the third elastic member drives the U-shaped frame to rise, and the top of the U-shaped frame contacts with the bottom of the pressure plate and is limited. At this time, the power roller and the driven roller are still pressed on the cut battery slices under the action of the second elastic member, so as to keep the battery slices stacked in the same group after cutting stable, and the power roller rotates to convey the uppermost battery slice of the same height out of the control slot. In the process of battery slice conveying, when the battery slice is separated from the driven roller, under the action of the second elastic member, the driven roller continues to press the battery slice of the next layer, thereby effectively ensuring that the battery slices of the same group are always in the pressing process during the conveying process, realizing automatic and stable unloading of the battery slices of the same group, and effectively solving the problem that the battery slices of different groups are interlaced due to the disappearance of the top pressing force of the battery slices after cutting.

[0028] 3. When the present invention conveys complete battery cells to the storage box, the top plate moves to the same height as the material control slot, the U-shaped frame is placed on the bottom of the pressure plate, the battery cells are guided to the top plate through the material control slot, and the power roller rotates to further convey the battery cells to the inside of the storage box until they reach the set position. After a single battery cell is conveyed, the laser sensor and the hydraulic cylinder work together to control the top plate to drop one working position. At this time, the top battery cell is equal to the height of the material control slot, and the next battery cell is fed in from the material control slot, thereby realizing a continuous automatic loading process and reducing the problem of difficulty in unloading the storage box.

[0029] 4. The power roller and driven roller of the present invention are also used to cooperate with the U-shaped frame to press the battery sheet to be cut to maintain stability during cutting.

[0030] 5. The present invention adopts a rotating connecting rod setting. When a cutting line is in a non-working state, in order to avoid interference with the battery cell cutting process, the output shaft of the telescopic cylinder drives the connecting rod to rotate, and cooperates with the line pressure adjustment of the tensioning wheel to make the two first wire wheels drive the cutting line to fold. Through the folding setting of the cutting line, the cutting line to be worked can be adjusted according to actual needs, thereby improving the switching efficiency of the cutting line and reducing the cutting difficulty. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a schematic diagram of the overall structure of a battery cell batch cutting device disclosed in a preferred embodiment of the present invention;

[0032] Figure 2A schematic diagram of the folding principle of the cutting line of a battery cell batch cutting device disclosed in a preferred embodiment of the present invention;

[0033] Figure 3 A partial structural schematic diagram of a battery cell batch cutting device disclosed in a preferred embodiment of the present invention;

[0034] Figure 4 A schematic diagram of the positions of cutting grooves of a battery cell batch cutting device disclosed in a preferred embodiment of the present invention;

[0035] Figure 5 A schematic diagram of the relative positions of the cutting lines and cutting grooves of a battery cell batch cutting device disclosed in a preferred embodiment of the present invention;

[0036] Figure 6 A battery cell batch cutting device disclosed in a preferred embodiment of the present invention Figure 3 The enlarged structural diagram at A in the middle;

[0037] Figure 7 A schematic diagram of the top plate connection structure of a battery cell batch cutting device disclosed in a preferred embodiment of the present invention;

[0038] Figure 8 A schematic diagram of the first elastic member connection structure of a battery cell batch cutting device disclosed in a preferred embodiment of the present invention;

[0039] Fig. 9 This is a schematic diagram of the distribution of power rollers and driven rollers of a battery cell batch cutting device disclosed in a preferred embodiment of the present invention.

[0040] Explanation of the numbers in the figure: 1. Slitting assembly; 2. Turntable; 3. Storage box; 4. Hydraulic cylinder; 5. Support assembly; 6. Top support assembly; 7. Laser sensor; 8. Limit plate; 11. Fixed seat; 12. Wire cutting machine; 13. Guide rail; 14. Electric slide; 15. Pay-off roller; 16. Take-up roller; 17. Drive roller; 18. Tensioning wheel; 19. Telescopic cylinder; 21. Support plate; 31. First cutting groove; 32. Second cutting groove; 33. Third cutting groove; 34. Support area; 35. Control groove; 36. Fixed frame; 37, fixed plate; 38, guide hole; 51, lifting frame; 52, top plate; 53, pressure plate; 54, guide rod; 55, guide tube; 56, first elastic member; 57, limit block; 61, U-shaped frame; 62, through hole; 63, limit groove; 64, second elastic member; 65, adjustment block; 66, power roller; 67, driven roller; 68, connecting rod; 681, sleeve; 69, third elastic member; 1011, connecting rod; 1012, first wire wheel; 1023, support rod; 1024, second wire wheel. DETAILED DESCRIPTION

[0041] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0042] Reference Figure 1 and Figure 2 The present embodiment discloses a battery cell batch cutting device, including a slitting assembly 1 and a rotating table 2 installed on the slitting assembly 1. The slitting assembly 1 includes a fixed seat 11 and a wire cutter 12. The wire cutter 12 is slidably installed on the fixed seat 11 through a guide rail 13. An electric slide 14 is fixedly installed on the fixed seat 11.

[0043] The wire cutting machine 12 includes a casing, a plurality of pay-off rollers 15, a plurality of take-up rollers 16, two sets of drive rollers 17 and a plurality of tensioning wheels 18. The casing is slidably mounted on a fixed seat 11 through a guide rail 13. The output end of an electric slide 14 is fixedly connected to the casing. The electric slide 14 is used to drive the wire cutting machine 12 to move along a set trajectory, thereby performing batch cutting of battery cells.

[0044] A plurality of pay-off rollers 15 and a plurality of take-up rollers 16 are rotatably mounted on the casing and connected to corresponding drive devices. The pay-off roller 15 and the corresponding take-up roller 16 rotate synchronously to jointly control the transmission of a cutting line. The transmission roller 17 is rotatably connected to the casing. The tensioning wheel 18 is located between the two transmission rollers 17. The tensioning wheel 18 detects the pressure of the corresponding cutting line through a pressure sensor installed thereon. The cutting line pressure on the tensioning wheel 18 is controlled by pushing the tensioning wheel 18 to move through the output shaft of the electric cylinder. The detection and adjustment of the line pressure are prior arts and will not be described in detail here. The casing is rotatably connected with a plurality of The telescopic cylinder 19 and the connecting rod 1011 are rotatably connected. The output shaft of the telescopic cylinder 19 is rotatably connected to the connecting rod 1011. The telescopic cylinder 19 is used to push the connecting rod 1011 to rotate around the axis point. The end of the connecting rod 1011 away from the telescopic cylinder 19 is rotatably connected to two sets of first wire wheels 1012. A plurality of support rods 1023 are fixedly installed on the casing. Both ends of the support rods 1023 are rotatably connected to second wire wheels 1024. When in working state, a second wire wheel 1024 is directly below a first wire wheel 1012, so that the cutting line between the two is perpendicular to the battery sheet. The winding principle of the cutting line is shown in FIG. Figure 2 , Figure 2 The middle dotted line is the winding position of the connecting rod 1011 after being folded.

[0045] Through the setting of the rotating connecting rod 1011, when a cutting line is in a non-working state, in order to avoid interference with the battery cell cutting process, the output shaft of the telescopic cylinder 19 pushes the connecting rod 1011 to rotate, so that the two first wire wheels 1012 drive the cutting line to fold, and during the folding process of the cutting line, the length of the cutting line between the transmission roller 17 and the second wire wheel 1024 away from the end of the take-up roller 16 first decreases and then increases, thereby causing the line pressure in the folding process to first decrease and then increase. Therefore, during the folding process, the electric cylinder controls the movement of the tensioning wheel 18 in real time and cooperates with the pressure sensor to detect the line pressure, so as to ensure that the cutting line is always in a tensioned state, avoiding problems such as the cutting line falling or entanglement. Through the folding setting of the cutting line, the cutting line to be worked can be adjusted according to actual needs, thereby improving the switching efficiency of the cutting line and reducing the cutting difficulty. The cutting line is continuously released by the pay-off roller 15 and synchronously retracted by the retracting roller 16, thereby realizing a high-speed cutting process.

[0046] The rotating table 2 includes a driving motor, a support column platform and two groups of support plates 21. The support column platform is rotatably connected to the fixed base 11. The driving motor is fixedly installed on the fixed base 11. The output shaft of the driving motor is fixedly connected to the support column platform. The two groups of support plates 21 are fixedly installed on the support column platform and are symmetrically distributed about the center of the rotation axis of the support column platform.

[0047] Reference Figures 1 to 6 The cutting device also includes two groups of storage boxes 3, and the storage boxes 3 are sequentially provided with a first cutting groove 31, a second cutting groove 32 and a third cutting groove 33. Each of the first cutting groove 31 and the third cutting groove 33 corresponds to a 1 / 3 cutting line and a 1 / 4 cutting line, and the second cutting groove 32 corresponds to a 1 / 2 cutting line and a 1 / 4 cutting line. The 1 / 2 cutting line and the 1 / 4 cutting line of the second cutting groove 32 coincide with each other. The 1 / 2 cutting line divides the battery cell placed in the storage box 3 into two pieces. Similarly, several 1 / 3 cutting lines divide the battery cell into three pieces, and several 1 / 4 cutting lines divide the battery cell into four pieces. Each cutting line position corresponds to a line on the wire cutting machine 12. The dividing line, the first cutting groove 31, the second cutting groove 32 and the third cutting groove 33 divide the material storage box 3 into several support areas 34, and a material control groove 35 is provided on the top of the material storage box 3, and the material control groove 35 is located on the side of the material storage box 3 close to the wire cutting machine 12. A fixing frame 36 is fixedly installed on the material storage box 3, and the material storage box 3 is fixedly installed on the corresponding support plate 21 through the fixing frame 36. A number of fixed plates 37 are fixedly installed on the fixing frame 36 of the material storage box 3, and the several fixed plates 37 are located above the material storage box 3. The several fixed plates 37 do not intersect with the cutting surface formed by the cutting line, and each support area 34 corresponds to at least one group of fixed plates 37, and a number of guide holes 38 are provided on the material storage box 3.

[0048] Reference Figure 7 and Figure 8A hydraulic cylinder 4 is fixedly installed on the support plate 21, and a support assembly 5 is fixedly installed on the output shaft of the hydraulic cylinder 4. The support assembly 5 includes a lifting frame 51 and a plurality of top plates 52. The output shaft of the hydraulic cylinder 4 is fixedly connected to the lifting frame 51, and the lifting frame 51 is slidably connected to the support plate 21. A pressure plate 53 is fixedly installed on the top of the lifting frame 51, and the pressure plate 53 is above a plurality of top support assemblies 6 for controlling the lifting and lowering of the top support assemblies 6. Each supporting area 34 corresponds to at least one top plate 52, and a plurality of guide rods 54 are fixedly installed below the top plate 52. The guide rods 54 are slidably connected to the guide holes 38, and a guide tube 55 is slidably connected to the bottom of the guide rods 54. The guide tube 55 is fixedly installed on the lifting frame 51, and a first elastic member 56 is sleeved in the guide tube 55. One end of the first elastic member 56 is fixedly connected to the guide tube 55, and the other end is fixedly connected to the guide rod 54. A limit block 57 is fixedly installed on the guide rod 54, and the first elastic member 56 is used to keep the top of the guide tube 55 in contact with the limit block 57.

[0049] Reference Figure 4 , Figure 6 and Fig. 9 , each supporting area 34 corresponds to at least one group of top support components 6, the top support components 6 include U-shaped frames 61, one end of the plurality of U-shaped frames 61 is located below the pressure plate 53, a plurality of through holes 62 are provided on the U-shaped frames 61, and both sides of the through holes 62 are connected to form limiting grooves 63, an adjustment block 65 is slidably connected in the limiting groove 63, a second elastic member 64 is installed in the limiting groove 63, one end of the second elastic member 64 is fixedly connected to the U-shaped frame 61, and the other end is fixedly connected to the adjustment block 65, the top support components 6 also include a power roller 66 and a plurality of driven rollers 67, the power roller 66 and the plurality of driven rollers 67 are rotatably connected to the corresponding adjustment block 65, and the second elastic member 64 is used to push the adjustment block 65 to make the power roller 66 or the driven roller 67 move from the bottom of the through hole 62 The top support assembly 6 also includes a plurality of sleeves 681 and a connecting rod 68 slidably connected to the sleeves 681. One end of the sleeve 681 is fixedly mounted on the corresponding fixed plate 37. One end of the connecting rod 68 is fixedly mounted on the U-shaped frame 61. A third elastic member 69 is mounted on the sleeve 681. One end of the third elastic member 69 is fixedly connected to the U-shaped frame 61, and the other end is fixedly connected to the fixed plate 37. A laser sensor 7 is fixedly mounted on the U-shaped frame 61. The laser sensor 7 is used to detect the height of the stacked battery cells. The laser sensor 7 and the power roller 66 are both located at one end of the U-shaped frame 61 close to the cutting line. The surfaces of the power roller 66 and the driven roller 67 are wrapped with rubber bodies to increase the friction between the battery cells, thereby reducing the difficulty of conveying the battery cells. Before cutting a plurality of stacked battery cells, the output shaft of the hydraulic cylinder 4 drives the lifting frame 51 to descend, and the pressing plate 53 descends to drive the U-shaped frame 61 to descend and press tightly on the top of the battery cells, thereby maintaining the stability of the battery cells when cutting.

[0050] Reference Figure 1A limit plate 8 is fixedly installed on the fixed seat 11. The height of the limit plate 8 is greater than the height of the U-shaped frame 61 when it is pressed tightly. The limit plate 8 is located at one end of the fixed seat 11 away from the dividing line. The limit plate 8 is used to adjust the height of the U-shaped frame 61, thereby ensuring that loading and unloading are carried out in an orderly manner.

[0051] Working principle: before cutting, according to the slice size, the telescopic cylinder 19 and the tensioning wheel 18 corresponding to the non-working cutting line work together to control the folding of the non-working cutting line, and the output shaft of the hydraulic cylinder 4 drives the lifting frame 51 to descend, and the pressing plate 53 descends to drive the U-shaped frame 61 to descend and press on the top of the battery cell, and the rotating table 2 rotates to switch the storage box 3 to the cutting position, and the output end of the electric slide 14 drives several cutting lines on the wire cutting machine 12 to move, and the cutting lines pass through the corresponding cutting grooves to cut the stacked battery cells in batches. After the cutting is completed, the output end of the electric slide 14 controls the wire cutting machine 12 to move backward and reset, so that the cutting line is separated from the cut battery cell, and the rotating table 2 rotates to interchange the position of the cut battery cell with the uncut battery cell.

[0052] Unloading, the storage box 3 of the cell after cutting rotates to the bottom of the limit plate 8, the output shaft of the hydraulic cylinder 4 drives the lifting frame 51 and the pressure plate 53 to rise, the guide tube 55 rises and contacts the limit block 57 and drives the guide rod 54 to rise, the guide rod 54 pushes the top plate 52 to rise, so that the uppermost cell is higher than the height of the control slot 35, and at the same time the third elastic member 69 drives the U-shaped frame 61 to rise, the top of the U-shaped frame 61 contacts the bottom of the pressure plate 53 and then limits, at this time the power roller 66 and the driven roller 67 are still pressed on the cut cell under the action of the second elastic member 64, so as to keep the cell stacked in the same group after cutting stable, the power roller 66 rotates, and the uppermost cell of the same height is transported from the control slot 35 to the conveyor line (reverse movement during loading), and then they are classified and placed or transferred to the next process by manipulators and suction cups and other equipment;

[0053] During the conveying process of the battery cells, when the battery cells are separated from the driven roller 67, under the action of the second elastic member 64, the driven roller 67 continues to press the battery cells of the next layer, thereby effectively ensuring the stability of the battery cells of the same group during the conveying process. When the corresponding laser sensor 7 detects the displacement change, it indicates that the conveying of this group of battery cells is completed, and the output shaft of the hydraulic cylinder 4 drives the lifting frame 51 and the pressure plate 53 to rise. The lifting frame 51 pushes the top plate 52 to rise through the guide rod 54, so that the battery cells of the next layer rise to a height higher than the control groove 35 for the next conveying until the battery cells in the storage box 3 are completely conveyed.

[0054] Loading, the manipulator, suction cup and other equipment place the whole battery cell on the conveyor line, and transport it to the storage box 3 through the conveyor line. At this time, the top plate 52 is equal to the height of the control slot 35, and the U-shaped frame 61 is still on the bottom of the pressure plate 53. The battery cell is guided to the top plate 52 through the control slot 35, and the power roller 66 rotates to further transport the battery cell to the inside of the storage box 3 until it reaches the set position. It should be noted that the position of the battery cell can be detected by a photoelectric sensor to achieve conveying positioning. For example, a photoelectric sensor is set on the control slot 35. After the single battery cell is transported, the laser sensor 7 and the hydraulic cylinder 4 work together to control the top plate 52 to drop one working position. At this time, the top battery cell is equal to the height of the control slot 35, and the next battery cell is sent in from the control slot 35, thereby realizing the loading process.

[0055] After the loading is completed, the top plate 52 contacts the bottom of the storage box 3, the output shaft of the hydraulic cylinder 4 drives the lifting frame 51 to continue to descend, the guide tube 55 descends relative to the guide rod 54, the pressing plate 53 contacts the U-shaped frame 61 and drives the U-shaped frame 61 to press the stacked battery cells, and the U-shaped frame 61 is separated from the limit plate 8. The present invention can avoid the waiting time of cutting and loading and unloading processes by switching the positions of the two workstations, further improve the cutting efficiency, and automatically load and unload the materials, thereby reducing the difficulty of loading and unloading the storage box 3.

[0056] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A battery cell batch cutting device, characterized in that: The invention comprises a slitting assembly (1), a rotating table (2) mounted on the slitting assembly (1), a supporting assembly (5) and a plurality of supporting assemblies (6); two groups of material storage boxes (3) are fixedly mounted on the rotating table (2) and are symmetrically distributed about the rotating axis of the rotating table (2); a plurality of cutting grooves are formed on the material storage boxes (3), and the plurality of cutting grooves divide the material storage boxes (3) into a plurality of supporting areas (34); and two groups of hydraulic cylinders (4) are fixedly mounted on the rotating table (2); The support assembly (5) comprises a lifting frame (51) and a plurality of top plates (52); the output shaft of the hydraulic cylinder (4) is fixedly connected to the corresponding lifting frame (51); the lifting frame (51) is slidably connected to the rotating table (2); and a pressure plate (53) is fixedly installed on the top of the lifting frame (51); Each supporting area (34) corresponds to at least one top plate (52), a plurality of guide rods (54) are fixedly installed below the top plate (52), a guide tube (55) is slidably connected to the bottom of the guide rod (54), and the guide tube (55) is fixedly installed on the lifting frame (51); The supporting assembly (6) comprises a U-shaped frame (61), a rotatable power roller (66) and a plurality of driven rollers (67), one end of the plurality of U-shaped frames (61) is located below the pressure plate (53), the power roller (66) and the plurality of driven rollers (67) are elastically mounted on the U-shaped frame (61) via a second elastic member (64), and the U-shaped frame (61) is elastically mounted on a fixed plate (37) of the material storage box (3) via a third elastic member (69); A limit plate (8) is fixedly mounted on the slitting assembly (1) and is used to limit the position of the U-shaped frame (61).

2. The battery cell batch cutting device according to claim 1, characterized in that: A laser sensor (7) is fixedly mounted on the U-shaped frame (61), and the laser sensor (7) is used to detect the height of the stacked battery cells. The laser sensor (7) and the power roller (66) are both located at one end of the U-shaped frame (61) close to the cutting groove, and the surfaces of the power roller (66) and the driven roller (67) are both wrapped with rubber.

3. The battery cell batch cutting device according to claim 1, characterized in that: The height of the limiting plate (8) is greater than the height of the U-shaped frame (61) when the battery sheet is pressed tightly, and the limiting plate (8) is located on the upper side of the material storage box (3) where no cutting operation is performed.

4. The battery cell batch cutting device according to claim 1, characterized in that: The slitting assembly (1) comprises a fixed seat (11) and a wire cutter (12); the wire cutter (12) is slidably mounted on the fixed seat (11) via a guide rail (13); an electric slide (14) is fixedly mounted on the fixed seat (11); an output end of the electric slide (14) is fixedly connected to the wire cutter (12); the electric slide (14) is used to drive the wire cutter (12) to move along the guide rail (13) and to cut the battery cells via the cutting line.

5. The battery cell batch cutting device according to claim 4, characterized in that: The wire cutting machine (12) comprises a housing, a plurality of pay-off rollers (15), a plurality of take-up rollers (16), two sets of transmission rollers (17) and a plurality of tensioning wheels (18); the housing is slidably connected to a fixed seat (11); and an output shaft of an electric slide (14) is fixedly connected to the housing; A plurality of pay-off rollers (15) and a plurality of take-up rollers (16) are rotatably mounted on the housing and connected to corresponding drive devices. The pay-off rollers (15) and the corresponding take-up rollers (16) rotate synchronously. A transmission roller (17) is rotatably connected to the housing. A tensioning wheel (18) is located between the two transmission rollers (17). The tensioning wheel (18) is used for pressure detection and adjustment. The housing is rotatably connected to a plurality of telescopic cylinders (19) and a plurality of connecting rods (1011); the output shaft of the telescopic cylinder (19) is rotatably connected to the connecting rod (1011); and one end of the connecting rod (1011) away from the telescopic cylinder (19) is rotatably connected to two sets of first wire wheels (1012); A plurality of second wire wheels (1024) are rotatably connected to the housing, and the first wire wheel (1012) and the second wire wheel (1024) are used to adjust the direction of the cutting line in contact with the battery sheet.

6. The battery cell batch cutting device according to claim 1, characterized in that: The cutting grooves comprise a first cutting groove (31), a second cutting groove (32) and a third cutting groove (33); the first cutting groove (31) and the third cutting groove (33) each correspond to a 1 / 3 cutting line and a 1 / 4 cutting line; the second cutting groove (32) corresponds to a 1 / 2 cutting line and a 1 / 4 cutting line; the 1 / 2 cutting line and the 1 / 4 cutting line of the second cutting groove (32) overlap.

7. The battery cell batch cutting device according to claim 1, characterized in that: A material control groove (35) is provided on the top of the material storage box (3), and the material control groove (35) is located on a side of the material storage box (3) close to the cutting groove; A fixing frame (36) is fixedly mounted on the material storage box (3), and the material storage box (3) is fixedly mounted on a corresponding support plate (21) on the rotating table (2) through the fixing frame (36). A plurality of fixing plates (37) are fixedly mounted on the fixing frame (36), and the fixing plates (37) are located above the material storage box (3).

8. The battery cell batch cutting device according to claim 1, characterized in that: The material storage box (3) is provided with a plurality of guide holes (38), and the guide rods (54) are slidably connected to the guide holes (38); A first elastic member (56) is sleeved inside the guide tube (55); one end of the first elastic member (56) is fixedly connected to the guide tube (55), and the other end is fixedly connected to the guide rod (54); a limit block (57) is fixedly mounted on the guide rod (54); the first elastic member (56) is used to make the top of the guide tube (55) fit the limit block (57).

9. The battery cell batch cutting device according to any one of claims 1 to 8, characterized in that: At least one group of U-shaped frames (61) is correspondingly provided in each of the supporting areas (34); a plurality of through holes (62) are provided on the U-shaped frames (61); limiting grooves (63) are provided on both sides of the through holes (62); the adjustment block (65) is slidably matched with the limiting grooves (63); one end of the second elastic member (64) is fixedly connected to the U-shaped frame (61); and the other end is fixedly connected to the adjustment block (65); and the power roller (66) and the plurality of driven rollers (67) are rotatably connected to the corresponding adjustment blocks (65).

10. The battery cell batch cutting device according to any one of claims 1 to 8, characterized in that: The supporting assembly (6) further comprises a plurality of sleeves (681) and a connecting rod (68) slidably connected to the sleeves (681), one end of the sleeves (681) being fixedly mounted on a corresponding fixing plate (37), one end of the connecting rod (68) being fixedly mounted on a U-shaped frame (61), a third elastic member (69) being sleeved on the sleeves (681), one end of the third elastic member (69) being fixedly connected to the U-shaped frame (61), and the other end of the third elastic member (69) being fixedly connected to the fixing plate (37).

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