Slitting and rolling all-in-one machine for lithium ion battery pole piece

Abstract

The invention relates to the technical field of battery pole piece slitting and rolling, in particular to a lithium ion battery pole piece slitting and rolling all-in-one machine which comprises a rolling assembly, a slitting mechanism, an overall conveying mechanism, a channel switching mechanism, a switching driving mechanism, an auxiliary conveying mechanism, a winding switching mechanism and a damage prevention mechanism. The thickness detector is used for controlling the cutting telescopic rod to stretch and retract twice to cut off battery pole segments with unqualified thicknesses, and the channel switching mechanism can be controlled to close qualified channels and open unqualified channels when the cutting telescopic rod stretches and retracts for the first time; at the moment, the winding switching mechanism is in linkage with the auxiliary conveying mechanism to convey the unqualified battery pole pieces, the positions of a first rack and a second rack are replaced when a cutting telescopic rod is subjected to second-time cutting retraction through linkage with a damage-preventing mechanism, the situation that the battery pole pieces are damaged when a channel switching plate is overturned is avoided, and the battery pole piece slitting device is suitable for slitting the battery pole pieces of any length.

Description

Technical Field

[0001] The invention relates to the technical field of battery pole piece slitting and rolling, and in particular to a lithium-ion battery pole piece slitting and rolling integrated machine. Background Art

[0002] The production process of lithium-ion battery pole pieces, after the coating process, also needs to be rolled and slit into pole pieces of the required thickness and width. The equipment currently on the market divides the rolling and slitting processes into two separate process equipment, which requires multiple unwinding and rewinding, with high time cost and inconsistent coil alignment. In addition, the thickness of the pole piece after rolling cannot be obtained from data analysis feedback, making it difficult to ensure the consistency of the pole piece thickness.

[0003] The patent with publication number: CN115911279B discloses a thickness correction device for a roller-pressing and slitting machine, including a roller press, a discharge port arranged on one side of the roller press, and a detection unit, the detection unit including a first shell, a feed port penetrating the first shell, a thickness gauge arranged on one side of the first shell, and a slitting unit, the slitting unit including a second shell, a connecting column arranged on one side of the second shell, a slitting assembly arranged on the top end surface of the second shell, a changing assembly arranged on one side of the slitting assembly and a driving assembly arranged on the side of the second shell, the connecting column is connected to the first shell.

[0004] However, the above-mentioned thickness correction device of the roller-pressing and slitting machine still has some shortcomings in actual use: 1. When the product is unqualified, the unqualified product is transported out from the second channel through the movement of the slitting knife and the cooperation of the second channel. This method does not have a driving force to transport the unqualified product out of the second channel, and it is very easy to damage the qualified product when the channel is switched; 2. This method only sets one cutting, but the part with unqualified thickness of the battery electrode should be a section. This method is not suitable for slitting of battery electrode rolls, so a lithium-ion battery electrode slitting and roller-pressing machine is proposed to solve the above-mentioned problems. Summary of the invention

[0005] The purpose of the present invention is to solve the problems in the background technology and to propose a lithium-ion battery pole piece slitting and rolling integrated machine.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] A lithium-ion battery pole piece slitting and rolling integrated machine, comprising a rolling assembly, wherein the outer wall of the rolling assembly is fixedly connected to a main frame, the bottom outer wall of the main frame is fixedly connected to a bottom frame, the inner wall of the main frame is fixedly connected to a thickness detector, the top outer wall of the main frame is fixedly connected to a limit frame, the outer wall of the main frame is hinged to a guide plate, and further comprising:

[0008] A cutting mechanism, used to cooperate with a thickness detector to cut off battery pole pieces with unqualified thickness, and the cutting mechanism is installed on the main frame;

[0009] The integral conveying mechanism is used to convey the battery pole pieces coming out of the rolling assembly, and the integral conveying mechanism is installed on the main frame;

[0010] A channel switching mechanism is used to switch the conveying channel of the battery pole pieces so that qualified battery pole pieces pass through the guide plate and unqualified battery pole pieces pass through the bottom of the limiting frame;

[0011] A switching drive mechanism is used to cooperate with the slitting mechanism to drive the channel switching mechanism, and the switching drive mechanism is installed on the main frame;

[0012] The auxiliary conveying mechanism is used to convey unqualified battery pole pieces out; the auxiliary conveying mechanism is installed on the main frame;

[0013] The winding switching mechanism is used to cooperate with the channel switching mechanism to adjust the workstation, so that when the channel switching mechanism switches to an unqualified channel, the winding switching mechanism can drive the auxiliary conveying mechanism, and the winding switching mechanism is installed on the main frame;

[0014] And an anti-damage mechanism is used to cooperate with the auxiliary conveying mechanism to prevent the slitting mechanism from cutting twice, which may cause the switching of the channel switching mechanism to damage the battery electrode. The anti-damage mechanism is installed on the switching drive mechanism.

[0015] Preferably, a first spring is fixedly connected between the guide plate and the bottom frame, and the slitting mechanism includes a telescopic cutting rod, a connecting plate 1, a knife seat and a slitting knife, the telescopic cutting rod is fixedly connected to the main frame, the knife seat is fixedly connected to the telescopic cutting rod, the connecting plate 1 is fixedly connected to the knife seat, the outer wall of the knife seat is slidably connected to the main frame, and the slitting knife is fixedly connected to the knife seat.

[0016] Preferably, the overall conveying mechanism includes a conveying sub-gear, a conveying belt, three conveying shafts and three conveying rollers, the three conveying rollers are respectively fixedly connected to the three conveying shafts, the three conveying shafts are rotatably connected to the inner wall of the main frame, the conveying belt is sleeved on the outer walls of the three conveying shafts, the conveying sub-gear is fixedly connected to one of the conveying shafts, the overall conveying mechanism is provided with two, the two overall conveying mechanisms are symmetrically distributed, the outer walls of the two conveying sub-gears are meshed with the same conveying main gear, a conveying motor is provided on one side of the conveying main gear, the output shaft of the conveying motor is fixedly connected to the conveying main gear, and the conveying motor is fixedly connected to the outer wall of the main frame.

[0017] Preferably, the auxiliary conveying mechanism includes a driving conveyor belt, a conveyor chain, a transmission gear 1, a transmission belt, a transmission gear 2, two conveyor shafts, two conveyor gear 3 and a plurality of auxiliary movable rods. The two conveyor shafts are rotatably connected to the inner wall of the main frame, the two conveyor gear 3s are respectively fixedly connected to the outer walls of one end of the conveyor shafts, the conveyor chain is sleeved on the outer walls of the two conveyor gear 3s, the conveyor chain is also sleeved on the outer wall of the transmission gear 1, the transmission gear 2 is located below the transmission gear 1, the transmission gear 2 is rotatably connected to the main frame through the set shaft, the transmission gear 1 and the transmission gear 2 are both movably connected to the transmission belt through the set shaft, the driving conveyor belt is sleeved on the outer walls of the two conveyor shafts, and the plurality of auxiliary movable rods are fixedly connected to the driving conveyor belt.

[0018] Preferably, the winding switching mechanism includes a rotating shaft 2, a belt 4, a flipping gear 1, a flipping gear 2, a first shaft rod, a connecting plate 2, a winding motor, a winding shaft rod and a winding gear, the rotating shaft 2 is rotatably connected to the main frame, the flipping gear 2 is rotatably connected to the main frame, the rotating shaft 2 and the flipping gear 2 are both movably connected to the inner wall of the belt 4 through the arranged shaft rod, the outer wall of the flipping gear 2 is meshed with the flipping gear 1, the flipping gear 1 is fixedly connected to the first shaft rod, the first shaft rod is rotatably connected to the main frame, the outer wall of the first shaft rod is fixedly connected to the connecting plate 2, the outer wall of the connecting plate 2 is fixedly connected to the winding motor, the output shaft of the winding motor is fixedly connected to the winding gear, and the winding gear is fixedly connected to the winding shaft rod.

[0019] Preferably, the channel switching mechanism includes a channel switching plate, a third shaft, a ratchet, a first gear and a pawl assembly, the third shaft is rotatably connected to the main frame, the channel switching plate is fixedly connected to the third shaft, the ratchet is fixedly connected to the third shaft, the pawl assembly is meshed with the inner wall of the ratchet, the pawl assembly is fixedly connected to the first gear, the first gear is fixedly connected to the first gear via a set shaft, and the outer walls of the rotating shaft 2 and the third shaft are sleeved with a first belt.

[0020] Preferably, the switching drive mechanism includes a mounting seat 1, a second rack, a first rack, a spring 4, a switching gear and two switching racks. The mounting seat 1 is fixedly connected to a connecting plate 1, the switching gear is rotatably connected to the mounting seat 1, and the two switching racks are meshed with the outer wall of the switching gear. The first rack and the second rack are respectively fixedly connected to the switching rack, the second rack and the first rack are both slidably connected to the mounting seat 1, and the spring 4 is fixedly connected between the first rack and the spring 4.

[0021] Preferably, the anti-damage mechanism includes an inclined push plate 2, a toggle gear, a spring 2, a limit push rod, a mounting seat 3, an inclined push plate 1, a protrusion 1 and a spring 5, the toggle gear is fixedly connected to one of the conveying shaft rods, the limit push rod is slidably connected to the inner wall of the main frame body, the spring 2 is fixedly connected between the limit push rod and the spring 2, the protrusion 1 is fixedly connected to the limit push rod, the mounting seat 3 is slidably connected to the main frame body, the spring 5 is fixedly connected between the main frame body and the mounting seat 3, the inclined push plate 2 is slidably connected to the mounting seat 3, the inclined push plate 1 is fixedly connected to the inclined push plate 2, two reset limit plates are arranged under the inclined push plate 1, and a spring 3 is fixedly connected between the two reset limit plates, one of the reset limit plates is fixedly connected to the inclined push plate 2, and the other reset limit plate is fixedly connected to the mounting seat 3.

[0022] Compared with the existing technology, the advantages of this lithium-ion battery pole piece slitting and rolling machine are:

[0023] 1. The cutting telescopic rod moves downward to drive the knife seat and the connecting plate to move downward, and the knife seat drives the slitting knife to cut the battery electrode piece. At the same time, the second rack is meshed with the first gear. However, due to the action of the pawl assembly, the first gear will not drive the ratchet to rotate, so that the channel switching plate will not flip. At this time, it is to protect the battery electrode piece with qualified thickness that is rolled up by the winding shaft rod so that it can be smoothly rolled up by the winding shaft rod through the guide plate;

[0024] 2. The rotation of the conveying shaft will drive the toggle gear to rotate, so that the toggle gear drives the limit push rod to move downward continuously, so that the protrusion 1 can extrude the mounting seat 3. At this time, the inclined push plate 1 is just below the second rack;

[0025] 3. When the second rack moves to the limit, the second rack will contact the inclined push plate 1, so that the inclined push plate 1 drives the inclined push plate 2 to move close to the first rack, so that the inclined push plate 2 squeezes out the first rack, and the switching rack drives the switching gear to rotate so that the second rack retracts, and the first rack is flush with the ratchet wheel. Then, when the cutting telescopic rod moves up, the first rack drives the ratchet wheel to rotate, so that the channel switching plate is reset. At this time, the electrode sheet with qualified thickness continues to be rolled up by the winding shaft through the guide plate;

[0026] In summary, the present invention controls the extension and retraction of the cutting telescopic rod twice by a thickness detector to cut off the battery electrode segments with unqualified thickness. The first extension and retraction of the cutting telescopic rod can control the channel switching mechanism to close the qualified channel and open the unqualified channel. At this time, the winding switching mechanism is linked to the auxiliary conveying mechanism to convey the unqualified battery electrode sheets, and the linkage anti-damage mechanism makes the positions of the first rack and the second rack replaced when the cutting telescopic rod is retracted for the second cutting, thereby avoiding damage to the battery electrode sheets when the channel switching plate is flipped, and is suitable for cutting battery electrode sheets of any length. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 The three-dimensional structure of the present invention is shown in FIG. Figure 1 ;

[0028] Figure 2 The present invention Figure 1 A schematic diagram of the partially enlarged structure at center A;

[0029] Figure 3 The three-dimensional structure of the present invention is shown in FIG. Figure 2 ;

[0030] Figure 4 The present invention Figure 3 A schematic diagram of the partially enlarged structure at B in the middle;

[0031] Figure 5 It is a schematic diagram of the structure of the present invention after removing the rolling assembly and part of the main frame;

[0032] Figure 6 The present invention Figure 5 A schematic diagram of the partially enlarged structure at C in the middle;

[0033] Figure 7 The present invention Figure 5 The schematic diagram of the local enlarged structure at D in the middle;

[0034] Figure 8 It is a schematic diagram of the structure of the present invention after removing part of the limiting frame;

[0035] Fig. 9 The present invention Figure 8 The schematic diagram of the local enlarged structure at E in the middle;

[0036] Fig.10 It is part of the structure of the anti-damage mechanism of the present invention

[0037] Fig.11 The present invention Fig.10 The schematic diagram of the partial enlarged structure at F in the middle;

[0038] Fig.12 It is a schematic diagram of the positional relationship structure of the anti-damage mechanism of the present invention.

[0039] In the figure: 1. rolling assembly; 2. conveying roller; 3. knife seat; 4. slitting knife; 5. main frame; 6. limit frame; 7. first shaft rod; 8. winding gear; 9. bottom frame; 10. winding shaft rod; 11. connecting plate 1; 12. mounting seat 1; 13. first rack; 14. second rack; 15. first belt; 16. ratchet; 17. inclined push plate 1; 18. first gear; 19. cutting telescopic rod; 20. winding motor; 21. connecting plate 2; 22. conveying motor; 23. conveying sub gear; 24. conveying main gear; 25. conveying shaft; 26. conveying belt; 27. auxiliary moving rod; 28. driving conveyor belt; 29. ​​guide plate; 30. thickness detector; 31. transmission gear 1; 32. transmission belt; 33. transmission gear 2 ; 34. Rotating shaft two; 35. Conveying shaft rod; 36. Conveying gear three; 37. Conveying chain; 38. Channel switching plate; 39. First spring; 40. Flipping gear one; 41. Flipping gear two; 42. Ratchet assembly; 43. Inclined push plate two; 44. Mounting seat three; 45. Limit push rod; 46. Toggle gear; 47. Spring two; 48. Third shaft rod; 49. Spring three; 50. Reset limit plate; 51. Switching gear; 52. Switching rack; 53. Spring four; 54. Bump one; 55. Spring five; 56. Belt four; 101. Slitting mechanism; 202. Overall conveying mechanism; 303. Auxiliary conveying mechanism; 404. Winding switching mechanism; 505. Channel switching mechanism; 606. Switching drive mechanism; 707. Anti-damage mechanism. DETAILED DESCRIPTION

[0040] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0041] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0042] Reference Figure 1-Figure 12A lithium-ion battery pole piece slitting and rolling machine, comprising a rolling assembly 1, the outer wall of the rolling assembly 1 is fixedly connected to a main frame 5, the bottom outer wall of the main frame 5 is fixedly connected to a bottom frame 9, the inner wall of the main frame 5 is fixedly connected to a thickness detector 30, the top outer wall of the main frame 5 is fixedly connected to a limited position frame 6, the outer wall of the main frame 5 is hinged with a guide plate 29, and also includes: a slitting mechanism 101, used to cooperate with the thickness detector 30 to cut the battery pole piece with unqualified thickness, the slitting mechanism 101 is installed on the main frame 5; an integral conveying mechanism 202, used to convey the battery pole piece coming out of the rolling assembly 1, the integral conveying mechanism 202 is installed on the main frame 5; a channel switching mechanism 505, used to switch the battery pole piece The conveying channel of the sheet allows qualified battery electrode sheets to pass through the guide plate 29, and unqualified battery electrode sheets to pass through the bottom of the limiting frame 6; the switching drive mechanism 606 is used to cooperate with the slitting mechanism 101 to drive the channel switching mechanism 505, and the switching drive mechanism 606 is installed on the main frame 5; the auxiliary conveying mechanism 303 is used to convey unqualified battery electrode sheets; the auxiliary conveying mechanism 303 is installed on the main frame 5; the winding switching mechanism 404 is used to cooperate with the channel switching mechanism 505 to adjust the work station, so that when the channel switching mechanism 505 switches to the unqualified channel, the winding switching mechanism 404 can drive the auxiliary conveying mechanism 303, and the winding switching mechanism 404 is installed on the main frame 5;

[0043] And the anti-damage mechanism 707 is used to cooperate with the auxiliary conveying mechanism 303 to prevent the slitting mechanism 101 from cutting twice, which may cause the switching of the channel switching mechanism 505 to damage the battery electrode. The anti-damage mechanism 707 is installed on the switching drive mechanism 606.

[0044] A first spring 39 is fixedly connected between the guide plate 29 and the bottom frame 9. The slitting mechanism 101 includes a cutting telescopic rod 19, a connecting plate 11, a knife seat 3 and a slitting knife 4. The cutting telescopic rod 19 is fixedly connected to the main frame 5, the knife seat 3 is fixedly connected to the cutting telescopic rod 19, the connecting plate 11 is fixedly connected to the knife seat 3, the outer wall of the knife seat 3 is slidably connected to the main frame 5, and the slitting knife 4 is fixedly connected to the knife seat 3.

[0045] Among them, the overall conveying mechanism 202 includes a conveying sub-gear 23, a conveying belt 26, three conveying shafts 25 and three conveying rollers 2. The three conveying rollers 2 are fixedly connected to the three conveying shafts 25 respectively. The three conveying shafts 25 are rotatably connected to the inner wall of the main frame 5. The conveying belt 26 is sleeved on the outer wall of the three conveying shafts 25. The conveying sub-gear 23 is fixedly connected to one of the conveying shafts 25. There are two overall conveying mechanisms 202. The two overall conveying mechanisms 202 are symmetrically distributed. The outer walls of the two conveying sub-gears 23 are meshed with the same conveying main gear 24. A conveying motor 22 is provided on one side of the conveying main gear 24. The output shaft of the conveying motor 22 is fixedly connected to the conveying main gear 24, and the conveying motor 22 is fixedly connected to the outer wall of the main frame 5.

[0046] In this embodiment, the battery electrode is rolled out from the rolling assembly 1 and enters between two sets of integral conveying mechanisms 202. The conveying motor 22 rotates, so that the conveying main gear 24 drives the conveying shaft 25 and the conveying roller 2 through two conveying sub-gears 23 and the conveying belt 26 to convey the battery electrode. Under normal conditions, the battery electrode will be wound up from above the guide plate 29 through the winding shaft 10. At the same time, the winding motor 20 rotates to wind up the battery electrode. The battery electrode will pass through the thickness detector 30, and the thickness detector 30 can detect the thickness of the battery electrode.

[0047] Among them, the auxiliary conveying mechanism 303 includes a driving conveyor belt 28, a conveying chain 37, a transmission gear 1 31, a transmission belt 32, a transmission gear 2 33, two conveying shafts 35, two conveying gears 3 36 and a plurality of auxiliary movable rods 27. The two conveying shafts 35 are both rotatably connected to the inner wall of the main frame 5. The two conveying gears 36 are respectively fixedly connected to the outer walls of one end of the conveying shafts 35. The conveying chain 37 is sleeved on the outer walls of the two conveying gears 36. The conveying chain 37 is also sleeved on the outer wall of the transmission gear 1 31. The transmission gear 2 33 is located below the transmission gear 1 31. The transmission gear 2 33 is rotatably connected to the main frame 5 through the set shaft. The transmission gear 1 31 and the transmission gear 2 33 are both movably connected to the transmission belt 32 through the set shaft. The driving conveyor belt 28 is sleeved on the outer walls of the two conveying shafts 35. The plurality of auxiliary movable rods 27 are all fixedly connected to the driving conveyor belt 28.

[0048] Among them, the winding switching mechanism 404 includes a rotating shaft 2 34, a belt 4 56, a flip gear 1 40, a flip gear 2 41, a first shaft rod 7, a connecting plate 21, a winding motor 20, a winding shaft rod 10 and a winding gear 8. The rotating shaft 2 34 is rotatably connected to the main frame 5, and the flip gear 2 41 is rotatably connected to the main frame 5. The rotating shaft 2 34 and the flip gear 2 41 are both movably connected to the inner wall of the belt 4 56 through the arranged shaft rod. The outer wall of the flip gear 2 41 is meshed with the flip gear 1 40. The flip gear 1 40 is fixedly connected to the first shaft rod 7. The first shaft rod 7 is rotatably connected to the main frame 5. The outer wall of the first shaft rod 7 is fixedly connected to the connecting plate 21. The outer wall of the connecting plate 21 is fixedly connected to the winding motor 20. The output shaft of the winding motor 20 is fixedly connected to the winding gear 8, and the winding gear 8 is fixedly connected to the winding shaft rod 10.

[0049] In this embodiment, the winding shaft 10 changes from being close to the guide plate 29 to being engaged with the transmission gear 2 33, thereby driving the transmission gear 2 33 to rotate, and the transmission gear 2 33 drives the conveying chain 37 to rotate through the transmission belt 32 and the transmission gear 1 31, and the conveying chain 37 drives the conveying gear 3 36 and the conveying shaft 35 to rotate, and the conveying shaft 35 drives the driving conveyor belt 28 and the auxiliary moving rod 27 to rotate, so that the auxiliary moving rod 27 can contact the unqualified electrode and convey it out.

[0050] Among them, the channel switching mechanism 505 includes a channel switching plate 38, a third shaft 48, a ratchet 16, a first gear 18 and a pawl assembly 42. The third shaft 48 is rotatably connected to the main frame 5, the channel switching plate 38 is fixedly connected to the third shaft 48, the ratchet 16 is fixedly connected to the third shaft 48, the pawl assembly 42 is meshed with the inner wall of the ratchet 16, the pawl assembly 42 is fixedly connected to the first gear 18, the first gear 18 is fixedly connected to the first gear 18 through a set shaft, and the outer wall of the rotating shaft 2 34 and the third shaft 48 is sleeved with a first belt 15.

[0051] Among them, the switching drive mechanism 606 includes a mounting seat 12, a second rack 14, a first rack 13, a spring four 53, a switching gear 51 and two switching racks 52. The mounting seat 12 is fixedly connected to the connecting plate 11, the switching gear 51 is rotatably connected to the mounting seat 12, the two switching racks 52 are both engaged with the outer wall of the switching gear 51, the first rack 13 and the second rack 14 are respectively fixedly connected to the switching rack 52, the second rack 14 and the first rack 13 are both slidably connected to the mounting seat 12, and the spring four 53 is fixedly connected between the first rack 13 and the spring four 53.

[0052] In this embodiment, when the thickness detector 30 detects that the thickness is unqualified, an electrical signal is sent to control the cutting telescopic rod 19 to move downward. The cutting telescopic rod 19 moves downward, driving the knife seat 3 and the connecting plate 11 to move downward, and the knife seat 3 drives the slitting knife 4 to cut the battery electrode. At the same time, the second rack 14 is engaged with the first gear 18, but due to the action of the pawl assembly 42, the first gear 18 will not drive the ratchet 16 to rotate, so that the channel switching plate 38 will not flip over. At this time, it is to protect the battery electrode with qualified thickness that is rolled up by the winding shaft 10 so that it can be smoothly rolled up by the winding shaft 10 through the guide plate 29. Subsequently, when the second rack 14 moves upward, the first gear 18 will drive the ratchet 16 to rotate through the pawl assembly 42, so that the channel switching plate 38 rotates, closing the channel for qualified products and opening the channel for unqualified products, that is, between the limit frame 6 and the main frame 5.

[0053] Among them, the anti-damage mechanism 707 includes a second inclined push plate 43, a toggle gear 46, a second spring 47, a limit push rod 45, a third mounting seat 44, a first inclined push plate 17, a first protrusion 54 and a fifth spring 55. The toggle gear 46 is fixedly connected to one of the conveying shafts 35, the limit push rod 45 is slidably connected to the inner wall of the main frame 5, the second spring 47 is fixedly connected between the limit push rod 45 and the second spring 47, the first protrusion 54 is fixedly connected to the limit push rod 45, and the third mounting seat 44 is connected to the main frame The main frame body 5 is slidably connected, the spring five 55 is fixedly connected between the main frame body 5 and the mounting seat three 44, the inclined push plate two 43 is slidably connected to the mounting seat three 44, the inclined push plate one 17 is fixedly connected to the inclined push plate two 43, and two reset limit plates 50 are arranged below the inclined push plate one 17, and a spring three 49 is fixedly connected between the two reset limit plates 50, one of the reset limit plates 50 is fixedly connected to the inclined push plate two 43, and the other reset limit plate 50 is fixedly connected to the mounting seat three 44.

[0054] In the present embodiment, the rotation of the conveying shaft 35 will drive the toggle gear 46 to rotate, so that the toggle gear 46 drives the limit push rod 45 to continuously move downward, so that the protrusion 154 can extrude the mounting seat 34. At this time, the inclined push plate 17 is just located below the second rack 14. When the thickness detector 30 detects that the electrode sheet with unqualified thickness no longer exists, the thickness detector 30 will start the secondary cutting and the cutting telescopic rod 19 will move downward again, so that the second rack 14 still does not drive the ratchet 16 to rotate. At this time, the unqualified products can smoothly pass through the passage between the limit frame 6 and the main frame 5. However, when the second rack 14 moves to the maximum limit, the second rack 14 will contact the inclined push plate 17, so that the inclined push plate 17 drives the inclined push plate 2 43 to move close to the first rack 13, so that the inclined push plate 2 43 squeezes the first rack 13 out, and the switching rack 52 drives the switching gear 51 to rotate to retract the second rack 14, and the first rack 13 is flush with the ratchet 16. Then, when the cutting telescopic rod 19 moves up, the first rack 13 drives the ratchet 16 to rotate, so that the channel switching plate 38 is reset. At this time, the electrode sheet with qualified thickness continues to be wound up by the winding shaft 10 through the guide plate 29.

[0055] The specific working principle and method of use of the present invention are explained in detail below: when in use, the battery electrode sheet is rolled out from the rolling assembly 1 and enters between the two sets of integral conveying mechanisms 202, and the conveying motor 22 rotates, so that the conveying main gear 24 drives the conveying shaft 25 and the conveying roller 2 through the two conveying sub-gears 23 and the conveying belt 26 to convey the battery electrode sheet. Under normal conditions, the battery electrode sheet will be wound up from above the guide plate 29 through the winding shaft rod 10, and at the same time, the winding motor 20 rotates to wind up the battery electrode sheet, and the battery electrode sheet will pass through the thickness detector 30, and the thickness detector 30 can detect the thickness of the battery electrode sheet.

[0056] When the thickness detector 30 detects that the thickness is unqualified, an electrical signal is sent to control the cutting telescopic rod 19 to move downward. The cutting telescopic rod 19 moves downward to drive the knife seat 3 and the connecting plate 11 to move downward, and the knife seat 3 drives the slitting knife 4 to cut the battery electrode. At the same time, the second rack 14 is engaged with the first gear 18, but due to the action of the pawl assembly 42, the first gear 18 will not drive the ratchet 16 to rotate, so that the channel switching plate 38 will not flip over. At this time, it is to protect the battery electrode with qualified thickness wound by the winding shaft 10 so that it can be smoothly wound by the winding shaft 10 through the guide plate 29. Subsequently, when the second rack 14 moves upward, the first gear 18 will drive the ratchet 16 to rotate through the pawl assembly 42 to rotate the channel switching plate 38, thereby closing the channel for qualified products and opening the channel for unqualified products, that is, between the limit frame 6 and the main frame 5.

[0057] When the ratchet 16 rotates, the ratchet 16 drives the rotating shaft 2 34 to rotate through the first belt 15, and the rotating shaft 2 34 drives the flip gear 2 41 and the flip gear 1 40 to rotate through the belt 4 56, so that the winding shaft 10 at this time changes from being close to the guide plate 29 to being engaged with the transmission gear 2 33, thereby driving the transmission gear 2 33 to rotate, and the transmission gear 2 33 drives the conveying chain 37 to rotate through the transmission belt 32 and the transmission gear 1 31, and the conveying chain 37 drives the conveying gear 3 36 and the conveying shaft 35 to rotate, and the conveying shaft 35 drives the driving conveyor belt 28 and the auxiliary moving rod 27 to rotate, so that the auxiliary moving rod 27 can contact the unqualified pole piece and convey it out. At this time, the winding drum on the outer wall of the winding shaft 10 can be replaced.

[0058] At the same time, the rotation of the conveying shaft 35 will drive the toggle gear 46 to rotate, so that the toggle gear 46 drives the limit push rod 45 to continuously move downward, so that the protrusion 154 can squeeze out the mounting seat 34. At this time, the inclined push plate 17 is just located below the second rack 14. When the thickness detector 30 detects that the electrode sheet with unqualified thickness no longer exists, the thickness detector 30 will start the secondary cutting and the cutting telescopic rod 19 will move downward again, so that the second rack 14 still does not drive the ratchet 16 to rotate. At this time, the unqualified products can smoothly pass through the channel between the limit frame 6 and the main frame 5, but When the second rack 14 moves to its maximum limit, the second rack 14 will contact the inclined push plate 17, so that the inclined push plate 17 drives the inclined push plate 2 43 to move close to the first rack 13, so that the inclined push plate 2 43 squeezes the first rack 13 out, and the switching rack 52 drives the switching gear 51 to rotate so that the second rack 14 retracts, and the first rack 13 is flush with the ratchet 16. Then, when the cutting telescopic rod 19 moves upward, the first rack 13 drives the ratchet 16 to rotate, so that the channel switching plate 38 is reset. At this time, the electrode sheet with qualified thickness continues to be wound up by the winding shaft 10 through the guide plate 29.

[0059] It is further explained that the above-mentioned fixed connection should be understood in a broad sense unless otherwise clearly specified and limited. For example, it can be welding, gluing, or one-piece molding, etc., which are conventional means well known to those skilled in the art.

[0060] 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 lithium-ion battery pole piece slitting and rolling machine, comprising a rolling assembly (1), wherein the outer wall of the rolling assembly (1) is fixedly connected to a main frame (5), the bottom outer wall of the main frame (5) is fixedly connected to a bottom frame (9), the inner wall of the main frame (5) is fixedly connected to a thickness detector (30), the top outer wall of the main frame (5) is fixedly connected to a limiting frame (6), and the outer wall of the main frame (5) is hinged with a guide plate (29), characterized in that: Also includes: A cutting mechanism (101) is used to cooperate with a thickness detector (30) to cut battery pole pieces with unqualified thickness, and the cutting mechanism (101) is installed on the main frame (5); An integral conveying mechanism (202) is used to convey the battery pole pieces coming out of the rolling assembly (1), and the integral conveying mechanism (202) is installed on the main frame (5); A channel switching mechanism (505) is used to switch the conveying channel of the battery electrode sheets so that qualified battery electrode sheets pass through the guide plate (29) and unqualified battery electrode sheets pass through the bottom of the limiting frame (6); A switching drive mechanism (606) is used to cooperate with the slitting mechanism (101) to drive the channel switching mechanism (505), and the switching drive mechanism (606) is installed on the main frame (5); The auxiliary conveying mechanism (303) is used to convey unqualified battery pole pieces out; the auxiliary conveying mechanism (303) is installed on the main frame (5); The reeling switching mechanism (404) is used to cooperate with the channel switching mechanism (505) to adjust the workstation, so that when the channel switching mechanism (505) switches to an unqualified channel, the reeling switching mechanism (404) can drive the auxiliary conveying mechanism (303), and the reeling switching mechanism (404) is installed on the main frame (5); And an anti-damage mechanism (707) is used to cooperate with the auxiliary conveying mechanism (303) to prevent the slitting mechanism (101) from cutting twice, which would cause the switching of the channel switching mechanism (505) to damage the battery electrode. The anti-damage mechanism (707) is installed on the switching drive mechanism (606).

2. The lithium-ion battery pole piece slitting and rolling machine according to claim 1, characterized in that: A first spring (39) is fixedly connected between the guide plate (29) and the bottom frame (9); the slitting mechanism (101) comprises a cutting telescopic rod (19), a connecting plate (11), a knife seat (3) and a slitting knife (4); the cutting telescopic rod (19) is fixedly connected to the main frame (5); the knife seat (3) is fixedly connected to the cutting telescopic rod (19); the connecting plate (11) is fixedly connected to the knife seat (3); the outer wall of the knife seat (3) is slidably connected to the main frame (5); and the slitting knife (4) is fixedly connected to the knife seat (3).

3. The lithium-ion battery pole piece slitting and rolling machine according to claim 2, characterized in that: The overall conveying mechanism (202) comprises a conveying sub-gear (23), a conveying belt (26), three conveying rotating shafts (25) and three conveying rollers (2); the three conveying rollers (2) are respectively fixedly connected to the three conveying rotating shafts (25); the three conveying rotating shafts (25) are rotatably connected to the inner wall of the main frame (5); the conveying belt (26) is sleeved on the outer walls of the three conveying rotating shafts (25); the conveying sub-gear (23) is fixedly connected to one of the conveying rotating shafts (25); two overall conveying mechanisms (202) are provided; the two overall conveying mechanisms (202) are symmetrically distributed; the outer walls of the two conveying sub-gears (23) are both meshed with the same conveying main gear (24); a conveying motor (22) is provided on one side of the conveying main gear (24); the output shaft of the conveying motor (22) is fixedly connected to the conveying main gear (24); and the conveying motor (22) is fixedly connected to the outer wall of the main frame (5).

4. The lithium-ion battery pole piece slitting and rolling machine according to claim 3, characterized in that: The auxiliary conveying mechanism (303) comprises a driving conveyor belt (28), a conveying chain (37), a transmission gear 1 (31), a transmission belt (32), a transmission gear 2 (33), two conveying shafts (35), two conveying gears 3 (36) and a plurality of auxiliary moving rods (27). The two conveying shafts (35) are rotatably connected to the inner wall of the main frame (5). The two conveying gears 3 (36) are respectively fixedly connected to the outer wall of one end of the conveying shafts (35). The conveying chain (37) is sleeved on the two conveying gears 3 (3 6), a conveying chain (37) is also sleeved on the outer wall of the transmission gear 1 (31), a transmission gear 2 (33) is located below the transmission gear 1 (31), the transmission gear 2 (33) is rotatably connected to the main frame (5) through a set shaft rod, the transmission gear 1 (31) and the transmission gear 2 (33) are both movably connected to the transmission belt (32) through the set shaft rod, the driving conveyor belt (28) is sleeved on the outer wall of the two conveying shaft rods (35), and a plurality of auxiliary moving rods (27) are fixedly connected to the driving conveyor belt (28).

5. The lithium-ion battery pole piece slitting and rolling machine according to claim 4, characterized in that: The reeling switching mechanism (404) comprises a rotating shaft 2 (34), a belt 4 (56), a flipping gear 1 (40), a flipping gear 2 (41), a first shaft rod (7), a connecting plate 2 (21), a reeling motor (20), a reeling shaft rod (10) and a reeling gear (8), wherein the rotating shaft 2 (34) is rotatably connected to the main frame (5), the flipping gear 2 (41) is rotatably connected to the main frame (5), and the rotating shaft 2 (34) and the flipping gear 2 (41) are both connected to the belt 4 (56) by a shaft rod. ), the outer wall of the flipping gear 2 (41) is meshed with the flipping gear 1 (40), the flipping gear 1 (40) is fixedly connected to the first shaft (7), the first shaft (7) is rotatably connected to the main frame (5), the outer wall of the first shaft (7) is fixedly connected to the connecting plate 2 (21), the outer wall of the connecting plate 2 (21) is fixedly connected to the winding motor (20), the output shaft of the winding motor (20) is fixedly connected to the winding gear (8), and the winding gear (8) is fixedly connected to the winding shaft (10).

6. The lithium-ion battery pole piece slitting and rolling machine according to claim 5, characterized in that: The channel switching mechanism (505) comprises a channel switching plate (38), a third shaft (48), a ratchet (16), a first gear (18) and a pawl assembly (42); the third shaft (48) is rotatably connected to the main frame (5); the channel switching plate (38) is fixedly connected to the third shaft (48); the ratchet (16) is fixedly connected to the third shaft (48); the pawl assembly (42) is meshed with the inner wall of the ratchet (16); the pawl assembly (42) is fixedly connected to the first gear (18); the first gear (18) is fixedly connected to the first gear (18) via a set shaft; and the outer walls of the rotating shaft (34) and the third shaft (48) are sleeved with a first belt (15).

7. The lithium-ion battery pole piece slitting and rolling machine according to claim 6, characterized in that: The switching drive mechanism (606) comprises a mounting seat (12), a second rack (14), a first rack (13), a spring (53), a switching gear (51) and two switching racks (52); the mounting seat (12) is fixedly connected to the connecting plate (11); the switching gear (51) is rotatably connected to the mounting seat (12); the two switching racks (52) are both meshed with the outer wall of the switching gear (51); the first rack (13) and the second rack (14) are respectively fixedly connected to the switching racks (52); the second rack (14) and the first rack (13) are both slidably connected to the mounting seat (12); and the spring (53) is fixedly connected between the first rack (13) and the spring (53).

8. The lithium-ion battery pole piece slitting and rolling machine according to claim 7, characterized in that: The anti-damage mechanism (707) comprises a second inclined push plate (43), a toggle gear (46), a second spring (47), a limit push rod (45), a third mounting seat (44), a first inclined push plate (17), a first protrusion (54) and a fifth spring (55), wherein the toggle gear (46) is fixedly connected to one of the conveying shafts (35), the limit push rod (45) is slidably connected to the inner wall of the main frame (5), the second spring (47) is fixedly connected between the limit push rod (45) and the second spring (47), the first protrusion (54) is fixedly connected to the limit push rod (45), and the third mounting seat (44) is fixedly connected to the first protrusion (54) and the limit push rod (45). Slidingly connected to the main frame (5), the spring five (55) is fixedly connected between the main frame (5) and the mounting seat three (44), the inclined push plate two (43) is slidably connected to the mounting seat three (44), the inclined push plate one (17) is fixedly connected to the inclined push plate two (43), two reset limit plates (50) are arranged below the inclined push plate one (17), and a spring three (49) is fixedly connected between the two reset limit plates (50), one of the reset limit plates (50) is fixedly connected to the inclined push plate two (43), and the other reset limit plate (50) is fixedly connected to the mounting seat three (44).

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