Pole piece compounding mechanism

Abstract

The invention discloses a pole piece compounding mechanism, and relates to the technical field of battery manufacturing. In the jacking device, a supporting mechanism can support a vacuum adsorption plate, a first driving mechanism can drive the supporting mechanism to ascend and descend, and the vacuum adsorption plate used for adsorbing the pole piece is provided with a first one-way valve used for conducting during vacuumizing and a second one-way valve used for conducting during vacuum breaking. In the carrying device, two clamping shafts are horizontally and oppositely arranged and rotationally arranged on two supporting bases located on the two opposite sides of a translation mechanism correspondingly, and a second driving mechanism arranged on the translation mechanism can drive the two supporting bases to be close to each other so that the two clamping shafts can be clamped with a vacuum adsorption plate located between the two clamping shafts. A third driving mechanism arranged on one of the supporting seats can drive one of the clamping shafts to drive the vacuum adsorption plate to turn over, and the translation mechanism can be close to the jacking device, so that the jacked vacuum adsorption plate and the turned vacuum adsorption plate are subjected to pole piece compounding. The pole piece compounding efficiency can be improved, and the cost is reduced.

Description

Technical Field

[0001] This invention relates to the field of battery manufacturing technology, and in particular to an electrode composite structure. Background Technology

[0002] The manufacturing process of semi-solid-state lithium batteries includes multiple processing steps, such as electrode manufacturing, electrode coating, stacking / winding, and encapsulation activation. Each processing step requires a corresponding workstation. When an electrode is transferred to another workstation, a correction mechanism and vision system are typically used to correct its position, ensuring accurate placement and improving processing efficiency while reducing defect rates.

[0003] For semi-solid-state lithium batteries, such as Figure 1 and Figure 2 As shown, a solid electrolyte slurry needs to be coated on the coating surface 101 of the electrode 100 to complete the single-sided coating of the electrode 100. After the single-sided coating and curing are completed, the positive electrode 110, the separator 130 and the negative electrode 120 need to be composited to form a micro cell.

[0004] Existing electrode lamination equipment often incorporates automatic alignment devices. Before the electrode lamination process, alignment treatment is required for the positive electrode 110 and negative electrode 120 to ensure accurate positioning and improve the lamination effect. However, this leads to complex equipment structure, numerous operating steps, increased costs, and low electrode lamination efficiency. Therefore, for single-sided coated electrode 100, there is an urgent need for an electrode lamination mechanism that is simple in structure, low in cost, and highly efficient. Summary of the Invention

[0005] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes an electrode composite mechanism with a unique and simple structure, which can realize electrode flipping and composite to manufacture microcells, and can improve electrode composite efficiency and reduce costs.

[0006] This invention provides an electrode composite mechanism, comprising: A lifting device includes a support mechanism and a first drive mechanism. The first drive mechanism is used to drive the support mechanism to rise and fall. The support mechanism is used to support a vacuum adsorption plate. The vacuum adsorption plate is used to adsorb electrode sheets. The vacuum adsorption plate is provided with a first one-way valve for opening when vacuuming and a second one-way valve for opening when breaking the vacuum. A conveying device includes a translation mechanism, support bases, locking shafts, a second drive mechanism, and a third drive mechanism. Two support bases are provided, respectively located on opposite sides of the translation mechanism. Two locking shafts are provided, rotatably mounted on the two support bases, arranged horizontally and oppositely. The second drive mechanism is located on the translation mechanism and drives the two support bases to approach each other, so that the two locking shafts approach and lock onto the vacuum adsorption plate located between the two locking shafts. The third drive mechanism is located on one of the support bases and drives one of the locking shafts to rotate, so that the locking shaft causes the vacuum adsorption plate to flip. The translation mechanism can move towards the lifting device, so that the lifted vacuum adsorption plate and the flipped vacuum adsorption plate can perform electrode bonding.

[0007] The electrode bonding mechanism according to embodiments of the present invention has at least the following beneficial effects: Since the vacuum adsorption plate is equipped with a first one-way valve and a second one-way valve, the vacuum adsorption plate can adsorb and fix the electrode placed on it during vacuuming, and can release the vacuum adsorption effect on the electrode when the vacuum is broken, so as to transfer the electrode. At this time, the vacuum adsorption plate can serve as a carrier for the electrode, allowing it to stably carry the electrode from other stations such as the coating or curing stations to the bonding station. Therefore, it can save the alignment process before electrode bonding, improve electrode bonding efficiency, and make the electrode bonding mechanism more compact, thus reducing manufacturing costs.

[0008] When two vacuum adsorption plates with electrodes are transferred to the lifting device and the transport device respectively, the support mechanism can provide stable support for one of the vacuum adsorption plates. At the same time, under the operation of the second drive mechanism, the two support seats can move closer to each other in the horizontal direction with the locking shafts, so that the two locking shafts can lock with the vacuum adsorption plate located between them, fixing the vacuum adsorption plate to the locking shafts and realizing the mechanical positioning of the vacuum adsorption plate.

[0009] Next, the diaphragm is placed on the electrode of the vacuum adsorption plate located at the lifting device. Then, the translation mechanism operates, sending the support base, vacuum adsorption plate, and electrode to the upper position of the lifting device. Under the operation of the third drive mechanism, the two clamping shafts drive the vacuum adsorption plate to rotate, causing the vacuum adsorption plate to flip so that the electrode on it faces downward, thereby adjusting the position of the electrode. Finally, under the operation of the first drive mechanism, the support mechanism drives the vacuum adsorption plate to move vertically upward, causing the electrode, diaphragm on the lower side, and the electrode on the upper side to be pressed together in the vertical direction to manufacture a microcell, thereby achieving efficient electrode composite operation.

[0010] In some embodiments of the present invention, the support mechanism includes a lifting seat, a rotating seat, and a fourth driving mechanism. The output end of the first driving mechanism is connected to the lifting seat to drive the lifting seat to move in the vertical direction. The rotating seat is located above the lifting seat and is rotatably connected to the lifting seat. The upper surface of the rotating seat is provided with a plurality of positioning parts for engaging with the vacuum adsorption plate. The fourth driving mechanism is located on the lifting seat and is used to drive the rotating seat to rotate 180° on the horizontal plane.

[0011] In some embodiments of the present invention, the positioning part is cylindrical and extends in the vertical direction, and at least two positioning parts are provided.

[0012] In some embodiments of the present invention, two lifting devices are provided and arranged at intervals along a first direction. One of the lifting devices is used to lift the vacuum adsorption plate on which the positive electrode sheet is adsorbed, and the other lifting device is used to lift the vacuum adsorption plate on which the negative electrode sheet is adsorbed. The translation mechanism can move along the first direction to either of the lifting devices so that the two locking shafts are locked with one of the vacuum adsorption plates. The first direction is perpendicular to the up and down direction.

[0013] In some embodiments of the present invention, the two locking shafts are respectively a first locking shaft and a second locking shaft. The output end of the third driving mechanism is connected to one end of the first locking shaft to drive the first locking shaft to rotate 180°. The second locking shaft is provided with a through hole, and a vacuum tube is provided in the through hole. The vacuum tube is coaxially arranged with the second locking shaft and rotatably connected. The vacuum tube is used to be inserted into the first one-way valve.

[0014] In some embodiments of the present invention, a clearance groove is provided on one end face of the second snap-fit ​​shaft near the first snap-fit ​​shaft. The clearance groove extends vertically and communicates with the through hole to allow clearance from the first one-way valve; and / or, The vacuum tube includes a rotary joint and an insertion joint. The insertion joint is fixed at one end of the through hole and can be inserted into the first one-way valve. The rotary joint is rotatable at the other end of the through hole and together with the insertion joint and the through hole, they form a vacuum tube.

[0015] In some embodiments of the present invention, the two locking shafts are respectively a first locking shaft and a second locking shaft, the third driving mechanism is used to drive the first locking shaft to rotate, and the end of the second locking shaft away from the first locking shaft is provided with an anti-rotation surface. There are two anti-rotation surfaces, which are respectively located on opposite sides of the second locking shaft in the circumferential direction. The electrode composite mechanism further includes: An anti-rotation device includes anti-rotation components and a fifth driving mechanism. Two anti-rotation components are provided and arranged at intervals in the horizontal direction and respectively located on opposite sides of the second snap-fit ​​shaft in the circumferential direction. The fifth driving mechanism is provided on the translation mechanism or the support base. The fifth driving mechanism is used to drive the two anti-rotation components to approach each other and abut against the corresponding anti-rotation surfaces.

[0016] In some embodiments of the present invention, the electrode composite mechanism further includes: A detection device for generating a detection signal when the second snap-fit ​​shaft rotates 180°; A control device is electrically connected to the detection device and the fifth drive mechanism respectively. The control device is used to control the fifth drive mechanism to drive the two anti-rotation members to move closer together according to the detection signal, and to control the fifth drive mechanism to drive the two anti-rotation members to move away from each other after the second snap-fit ​​shaft snaps into the vacuum adsorption plate.

[0017] In some embodiments of the present invention, the detection device includes a turntable and a slotted photoelectric switch. The turntable is coaxially arranged and fixedly connected to the second snap-fit ​​shaft. The turntable has notches on opposite sides along its circumference. The slotted photoelectric switch is mounted on the support base and is used to generate a detection signal when any of the notches rotates into the detection area of ​​the slotted photoelectric switch; and / or, The anti-rotation component includes a roller, the central axis of which extends in the vertical direction, and the outer peripheral surface of which can contact the anti-rotation surface.

[0018] In some embodiments of the present invention, the translation mechanism includes a translation seat and a sixth driving mechanism. The translation seat is provided with a clearance hole for the vacuum adsorption plate being lifted to pass through. The sixth driving mechanism is used to drive the translation seat closer to or further away from the lifting device; and / or, Each of the aforementioned snap-fit ​​shafts is provided with a plurality of snap-fit ​​protrusions, which are used to insert into the insertion holes of the vacuum adsorption plate when two of the aforementioned snap-fit ​​shafts are close together; and / or, The electrode composite mechanism also includes the vacuum adsorption plate, and the vacuum adsorption plate is provided in at least two pieces. At least one vacuum adsorption plate is used for vacuum adsorption of the negative electrode sheet, and at least one vacuum adsorption plate is used for vacuum adsorption of the positive electrode sheet.

[0019] Other features and advantages of the invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of the invention may be realized and obtained by means of the structures particularly pointed out in the description, claims, and drawings. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of an electrode sheet after single-sided coating in the prior art; Figure 2 This is an exploded view of the structure of a microcell in existing technology; Figure 3 This is a three-dimensional structural schematic diagram of the electrode composite mechanism provided according to an embodiment of the present invention; Figure 4 This is a three-dimensional structural diagram of the conveying device provided according to an embodiment of the present invention when a vacuum adsorption plate is installed. Figure 5 This is a three-dimensional structural diagram of the conveying device provided according to an embodiment of the present invention; Figure 6 This is a three-dimensional structural schematic diagram of a vacuum adsorption plate provided according to an embodiment of the present invention; Figure 7 This is a schematic diagram of the structure of the second snap-fit ​​shaft provided according to an embodiment of the present invention from a top view angle; Figure 8 yes Figure 7 Sectional view of section AA; Figure 9 This is a three-dimensional structural diagram of the lifting device provided according to an embodiment of the present invention; Figure 10 This is a three-dimensional structural diagram of the lifting device provided according to an embodiment of the present invention in the lifting state; Figure 11 This is a three-dimensional structural diagram of the lifting device provided according to an embodiment of the present invention when a vacuum adsorption plate is installed. Figure 12 This is a three-dimensional structural diagram of the lifting device provided in an embodiment of the present invention after lifting the vacuum adsorption plate; Figure 13 This is a three-dimensional structural schematic diagram of an electrode composite mechanism provided according to another embodiment of the present invention.

[0021] Reference numerals: 100, electrode sheet; 101, coated surface; 110, positive electrode sheet; 120, negative electrode sheet; 130, diaphragm; 200, electrode sheet composite mechanism; 210, conveying device; 211, translational seat; 212, clearance hole; 213, support seat; 214, first locking shaft; 215, second locking shaft; 216, third drive mechanism; 217, clearance groove; 218, second drive mechanism; 219, through hole; 220, lifting device; 221, fixed seat; 222, first drive mechanism; 223, lifting... 224. Lowering seat; 225. Guide rod; 226. Sleeve; 227. Rotating seat; 228. Positioning part; 229. Fourth drive mechanism; 230. Rotation angle sensor; 231. Vacuum adsorption plate; 232. First one-way valve; 233. Adsorption hole; 234. Positioning hole; 240. Insertion hole; 251. Double guide rail; 252. Rotary joint; 252. Insertion tube joint; 261. Slotted photoelectric switch; 262. Turntable; 263. Notch; 270. Ball bearing; 281. Fifth drive mechanism; 282. Anti-rotation component. Detailed Implementation

[0022] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0023] In the description of this invention, it should be understood that features specified as "first" or "second" may explicitly or implicitly include one or more of those features. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0024] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0025] The following is for reference. Figures 1 to 13 The electrode composite mechanism provided according to an embodiment of the present invention is described.

[0026] like Figures 1 to 13As shown, the electrode composite mechanism 200 according to an embodiment of the present invention can be used for the composite work of negative electrode 120 and positive electrode 110 of lithium battery, especially for single-sided coated semi-solid lithium battery, to form micro cell by composite of positive electrode 110, separator 130 and negative electrode 120.

[0027] The electrode composite mechanism 200 of this embodiment has the advantages of ingenious and simple structural design, simplified operation steps, high electrode composite efficiency and low cost. It can realize the flipping and composite of electrode 100 to manufacture micro cells.

[0028] The electrode composite mechanism 200 has a first direction, a second direction, and a vertical direction, wherein the first direction, the second direction, and the vertical direction are perpendicular to each other. In this embodiment, it is assumed that the first direction is the front-back direction and the second direction is the left-right direction.

[0029] like Figures 3 to 13 As shown, the electrode composite mechanism 200 includes a lifting device 220 and a conveying device 210.

[0030] The lifting device 220 is used to lift one of the vacuum adsorption plates 230. The vacuum adsorption plate 230 is used to adsorb the electrode 100, ensuring the electrode 100 is stably placed on the vacuum adsorption plate 230 without displacement relative to it. The vacuum adsorption plate 230 is equipped with a first one-way valve 231 and a second one-way valve. The first one-way valve 231 is used to open when the vacuum adsorption plate 230 is evacuated, allowing it to apply a vacuum adsorption effect to the electrode 100 placed on it. The second one-way valve is used to open when the vacuum adsorption plate 230 is de-vacuumed, releasing the vacuum adsorption effect on the electrode 100, allowing the electrode 100 to be transferred away from the vacuum adsorption plate 230 manually or by a robotic arm.

[0031] Specifically, such as Figure 6 As shown, the vacuum adsorption plate 230 is a rectangular plate with a hollow interior forming a vacuum cavity. The upper surface of the vacuum adsorption plate 230 serves as a support surface for placing the electrode 100. The upper surface of the vacuum adsorption plate 230 has multiple adsorption holes 232, which can be arranged in a matrix. All adsorption holes 232 are connected to the vacuum cavity. The vacuum adsorption plate 230 has a vacuum extraction port and a vacuum breaking port. A first one-way valve 231 is located at the vacuum extraction port, and a second one-way valve is located at the vacuum breaking port. Both the first one-way valve 231 and the second one-way valve are located outside the vacuum cavity.

[0032] It is understood that both the first one-way valve 231 and the second one-way valve are existing technologies. Their structures mainly include a valve seat, a spring, and a valve body. Those skilled in the art should understand their specific structures and working principles, which will not be described in detail here. For the first one-way valve 231, the conduction direction is from the inside of the vacuum chamber to the outside. For the second one-way valve, the conduction direction is from the outside of the vacuum chamber to the inside. The first one-way valve 231 only switches to the conducting state when a vacuum is evacuated, and the second one-way valve only switches to the conducting state when the vacuum is broken. The placement of the first one-way valve 231 and the second one-way valve is not limited; they can be placed around the vacuum adsorption plate 230, as long as it does not obstruct the installation of the vacuum adsorption plate 230 on the lifting device 220 or the transport device 210.

[0033] Specifically, when the electrode 100 is placed on the upper surface of the vacuum adsorption plate 230 and connected to the first one-way valve 231 via a pipe using a vacuum pump, the vacuum chamber is evacuated by operating the vacuum pump. At this time, because the air pressure between the vacuum chamber and the first one-way valve 231 is greater than the air pressure between the first one-way valve 231 and the vacuum pump, the spring force of the first one-way valve 231 can be overcome, causing the first one-way valve 231 to be in a conducting state. This allows the gas in the vacuum chamber to continuously flow towards the vacuum pump, resulting in a continuous decrease in the air pressure in the vacuum chamber. The completion of the vacuum pumping process can be determined based on the evacuation time, ensuring that the vacuum adsorption plate 230 can stably adsorb and fix the electrode 100.

[0034] During the vacuuming process, although the internal pressure of the vacuum chamber continues to decrease and is lower than the external atmospheric pressure, the spring force of the second one-way valve is strong enough that the pressure difference between the external atmospheric pressure and the vacuum chamber is insufficient to overcome the spring force of the second one-way valve. Therefore, the second one-way valve remains closed, preventing external air from flowing into the vacuum chamber through the second one-way valve.

[0035] When the vacuuming device stops evacuating between itself and the first one-way valve 231, the vacuuming effect disappears, and the first one-way valve 231 resets, switching from the open state to the closed state to disconnect the vacuuming device from the first one-way valve 231. At this time, since both the first one-way valve 231 and the second one-way valve are in the closed state, and the electrode 100 blocks all the adsorption holes 232, the vacuum chamber can maintain a certain vacuum level, ensuring that the electrode 100 is tightly adsorbed and fixed on the upper surface of the vacuum adsorption plate 230.

[0036] When vacuum breaking is required, the cylinder can drive the cylindrical vent plug to extend and retract, allowing the vent plug to enter the second one-way valve and apply force to the valve body inside the second one-way valve to overcome the spring force of the second one-way valve, causing the second one-way valve to switch from the closed state to the open state. At this time, since the vent plug has an air chamber that connects to the external atmosphere and the inside of the second one-way valve, it can promote the flow of external gas into the vacuum chamber through the vent plug and the second one-way valve, thereby realizing the vacuum breaking work of the vacuum adsorption plate 230.

[0037] like Figure 3 , Figures 9 to 12 As shown, the lifting device 220 includes a support mechanism and a first drive mechanism 222. The first drive mechanism 222 is used to drive the support mechanism to rise and fall, and the support mechanism is used to support the vacuum adsorption plate 230.

[0038] It is understandable that a concave-convex structure can be provided between the support mechanism and the vacuum adsorption plate 230. When the vacuum adsorption plate 230 is placed on the support mechanism, the concave-convex structure can be used to position the vacuum adsorption plate 230 on the support mechanism, so that the support mechanism can stably drive the vacuum adsorption plate 230 upward under the driving action of the first driving mechanism 222. Specifically, the concave-convex structure includes protrusions and grooves, the number of protrusions and the number of grooves are the same, and they are not limited to one. One of the protrusions and grooves is provided on the support mechanism, and the other is provided on the vacuum adsorption plate 230. After the vacuum adsorption plate 230 carrying the electrode 100 is transferred to the support mechanism, the diaphragm 130 can be placed on the electrode 100 of the vacuum adsorption plate 230 located at the support mechanism by a robotic arm, so that the diaphragm 130 presses against the electrode 100.

[0039] The first drive mechanism 222 can be a linear drive device such as a pneumatic cylinder, electric cylinder, hydraulic cylinder, or linear module. In this embodiment, the first drive mechanism 222 is a lead screw drive mechanism. The lifting device 220 also includes a fixed base 221. The first drive mechanism 222 can be bolted to the fixed base 221, which can be mounted on the frame of the electrode composite mechanism 200. The support mechanism is located above the first drive mechanism 222 and is connected to the output end of the first drive mechanism 222, allowing the first drive mechanism 222 to drive the support mechanism to move in the vertical direction. A guide component, such as a guide rail slider pair or an optical axis guide sleeve combination, can be provided between the support mechanism and the fixed base 221 to increase the stability of the support mechanism's lifting relative to the fixed base 221. The support mechanism is provided with two cylindrical positioning parts 227, which extend in the vertical direction. Correspondingly, the vacuum adsorption plate 230 is provided with two positioning holes 233. The positioning parts 227 can be fitted into the positioning holes 233 to complete the positioning work of the support mechanism on the vacuum adsorption plate 230.

[0040] The shape of the support mechanism and the fixed base 221 is not limited and can be designed according to the actual situation. No specific limitation is made here.

[0041] like Figure 3 As shown, the conveying device 210 is located on one side of the lifting device 220 along the horizontal direction. In this embodiment, the conveying device 210 is disposed on one side of the lifting device 220 along the first direction. The conveying device 210 can move along the first direction to approach or move away from the lifting device 220. The function of the conveying device 210 is to convey the vacuum adsorption plate 230 to a position directly above the lifting device 220 so that it can be brought closer to the vacuum adsorption plate 230 lifted by the lifting device 220 to achieve electrode composite operation.

[0042] like Figures 3 to 5 As shown, the structure of the conveying device 210 includes a translation mechanism, a support base 213, a snap-fit ​​shaft, a second drive mechanism 218, and a third drive mechanism 216.

[0043] The translation mechanism includes a translation base 211 and a sixth drive mechanism. The translation base 211 is provided with a clearance hole 212, which is a clearance hole 212 that allows the vacuum adsorption plate 230 lifted by the lifting device 220 to pass through. The output end of the sixth drive mechanism is fixedly connected to the translation base 211. The function of the sixth drive mechanism is to drive the translation base 211 to move closer to or away from the lifting device 220.

[0044] It is understood that the shape of the clearance hole 212 is not limited, as long as it allows the vacuum adsorption plate 230 on the lifting device 220 to move upward and pass through. The sixth drive mechanism can be, but is not limited to, a cylinder, an electric cylinder, a hydraulic cylinder, or a linear module. In this embodiment, the frame of the electrode composite mechanism 200 is provided with a double guide rail 240 extending along the first direction. There are two sets of double guide rails 240, which are spaced apart along the second direction. Correspondingly, the bottom of the translation seat 211 is provided with a slider, which is slidably connected to the double guide rail 240. The sixth drive mechanism is a synchronous belt drive device, which can drive the translation seat 211 to move along the first direction and adjust the position of the translation seat 211 relative to the lifting device 220.

[0045] Two support bases 213 are provided, and the two support bases 213 are respectively located on opposite sides of the translation mechanism along the horizontal direction. It is understood that in some examples, the two support bases 213 are located on opposite sides of the translation mechanism along a first direction. In other examples, the two support bases 213 are located on opposite sides of the translation mechanism along a second direction. In still other examples, the direction of the line connecting the two support bases 213 forms an acute angle with the first direction. The shape of the support bases 213 is not limited.

[0046] In this embodiment, as Figure 4 and Figure 5 As shown, two support seats 213 are respectively disposed on opposite sides of the translation seat 211 along the second direction. Each support seat 213 is slidably connected to the translation seat 211 along the second direction. Specifically, each support seat 213 is mounted on the translation seat 211 via a guide rail slider pair to enhance the stability of the support seat 213 moving along the second direction. Viewed along the second direction, the support seat 213 is T-shaped.

[0047] There are two snap-fit ​​shafts, and the two snap-fit ​​shafts are respectively mounted on two support seats 213 through ball bearings 270. The two snap-fit ​​shafts are arranged horizontally and opposite to each other. Therefore, the snap-fit ​​shafts have a rotation axis extending in the horizontal direction. The snap-fit ​​shafts can rotate relative to the support seats 213 about their own rotation axis. Moreover, the snap-fit ​​shafts can move along the second direction with the corresponding support seats 213.

[0048] In this embodiment, as Figure 4 and Figure 5 As shown, the axial direction of the snap-fit ​​shaft extends along the second direction. The support base 213 has a shaft hole, and the snap-fit ​​shaft is installed in the shaft hole. Both ends of the snap-fit ​​shaft extend out of the shaft hole. The two snap-fit ​​shafts are arranged opposite to each other and spaced apart in the second direction. The distance between the two snap-fit ​​shafts along the second direction allows the vacuum adsorption plate 230 to be fed between the two snap-fit ​​shafts. One of the snap-fit ​​shafts is designated as the first snap-fit ​​shaft 214, and the other snap-fit ​​shaft is designated as the second snap-fit ​​shaft 215.

[0049] The second drive mechanism 218 is mounted on the translation mechanism. Specifically, the second drive mechanism 218 can be fixed to the translation base 211 by bolts. The second drive mechanism 218 can move along the first direction following the translation base 211. The function of the second drive mechanism 218 is to drive the two support bases 213 closer together, so that the two locking shafts approach and lock onto the vacuum adsorption plate 230 located between the two locking shafts. Furthermore, the second drive mechanism 218 can also drive the two support bases 213 away from each other, so that the two locking shafts move away from each other and release the locking effect on the vacuum adsorption plate 230.

[0050] It is understood that the second drive mechanism 218 can be a pneumatic cylinder, an electric cylinder, a hydraulic cylinder, or a linear module, etc. In some examples, there is only one second drive mechanism 218, which is drivenly connected to two support seats 213 respectively, so as to drive the two support seats 213 to move synchronously along the second direction, so that the two support seats 213 move closer or further apart. In other examples, there are two second drive mechanisms 218, which are drivenly connected to two support seats 213 respectively, so as to drive the two support seats 213 to move along the second direction, causing the two support seats 213 to move closer or further apart.

[0051] In this embodiment, as Figure 4 and Figure 5 As shown, the second drive mechanism 218 is a cylinder, and there are two second drive mechanisms 218. Each second drive mechanism 218 is mounted on the translation seat 211, and the movable rod of the second drive mechanism 218 is fixedly connected to the support seat 213. In addition, buffer blocks made of rubber can be provided on opposite sides of the support seat 213 along the second direction. Therefore, when the second drive mechanism 218 drives the support seat 213 to move linearly along the second direction, the buffer blocks can provide a buffering effect on the support seat 213, thus avoiding strong collisions between the snap-fit ​​shaft and the vacuum adsorption plate 230 that would cause noise.

[0052] The snap-fit ​​shaft and the vacuum adsorption plate 230 can be snapped together using a concave-convex structure. Specifically, each snap-fit ​​shaft has several snap-fit ​​protrusions, which can be cylindrical or prismatic. The purpose of these protrusions is to allow the two snap-fit ​​shafts to be inserted into the insertion holes 234 of the vacuum adsorption plate 230 when they are close together.

[0053] In this embodiment, as Figure 4 , Figure 5 , Figure 7 and Figure 8 As shown, the first locking shaft 214 has two locking protrusions on its end face near the second locking shaft 215 along the second direction, and the second locking shaft 215 has two locking protrusions on its end face near the first locking shaft 214 along the second direction. All locking protrusions are cylindrical and extend along the second direction; correspondingly, as... Figure 6 As shown, the vacuum adsorption plate 230 has two insertion holes 234 on its opposite sides along the second direction. The insertion holes 234 are round holes, so the snap-fit ​​protrusion can be inserted into the insertion hole 234, causing the first snap-fit ​​shaft 214 and the second snap-fit ​​shaft 215 to snap with the vacuum adsorption plate 230, thereby realizing the mechanical positioning of the vacuum adsorption plate 230 on the conveying device 210, so that the first snap-fit ​​shaft 214 and the second snap-fit ​​shaft 215 together clamp and fix the vacuum adsorption plate 230, and can perform a flipping operation on the vacuum adsorption plate 230.

[0054] The third drive mechanism 216 is mounted on one of the support bases 213. The third drive mechanism 216 can be fixed to the support base 213 by bolts and can move along the second direction with the support base 213. The function of the third drive mechanism 216 is to drive one of the snap-fit ​​shafts to rotate, so that the snap-fit ​​shaft drives the vacuum adsorption plate 230 to flip.

[0055] It is understandable that the third drive mechanism 216 can be a rotary cylinder or a motor. If the third drive mechanism 216 is a motor, the motor drives the first clamping shaft 214 to rotate via a synchronous belt drive structure. When the first clamping shaft 214 and the second clamping shaft 215 cooperate and clamp the vacuum adsorption plate 230, under the driving action of the third drive mechanism 216, the first clamping shaft 214 can rotate, driving the vacuum adsorption plate 230 and the second clamping shaft 215 to rotate until the electrode plates 100 on the vacuum adsorption plate 230 are positioned downwards. For example, when the vacuum adsorption plate 230 engages with the first snap-fit ​​shaft 214 and the second snap-fit ​​shaft 215 respectively, the electrode 100 on the vacuum adsorption plate 230 is set upward. Then, the first snap-fit ​​shaft 214 is driven to rotate 180° by the third drive mechanism 216, causing the vacuum adsorption plate 230 to rotate 180° with the electrode 100, so that the electrode 100 can be combined with the electrode 100 and the diaphragm 130 at the lifting device 220.

[0056] The translation mechanism can move towards the lifting device 220 so that the lifted vacuum adsorption plate 230 and the flipped vacuum adsorption plate 230 can perform the composite work of the electrode 100. When the translation mechanism moves the vacuum adsorption plate 230 to a position directly above the lifting device 220, the electrode 100 of the vacuum adsorption plate 230 on the conveying device 210 is set downwards, while the electrode 100 of the vacuum adsorption plate 230 on the lifting device 220 is set upwards. Moreover, the diaphragm 130 of the vacuum adsorption plate 230 on the lifting device 220 is located between the two electrode plates 100. By operating the lifting device 220, the vacuum adsorption plate 230 is lifted, which causes the two electrode plates 100 and the diaphragm 130 to be pressed together, thereby forming a microcell.

[0057] Understandably, one of the positive electrode 110 and the negative electrode 120 is adsorbed and fixed on the vacuum adsorption plate 230 located at the lifting device 220, and the other is adsorbed and fixed on the vacuum adsorption plate 230 located at the transport device 210.

[0058] In some embodiments, the vacuum adsorption plate 230 is not part of the electrode composite mechanism 200, but rather a structural component of other equipment in the battery manufacturing production line.

[0059] In other embodiments, such as Figures 3 to 12As shown, the electrode composite mechanism 200 also includes a vacuum adsorption plate 230, which is a component of the electrode composite mechanism 200. At least two vacuum adsorption plates 230 are provided; at least one vacuum adsorption plate 230 is used for vacuum adsorption of the negative electrode 120, and at least one vacuum adsorption plate 230 is used for vacuum adsorption of the positive electrode 110. At this time, all vacuum adsorption plates 230 can be transferred to other workstations on the battery manufacturing production line for adsorption and fixation of the electrode 100, facilitating the processing of the electrode 100.

[0060] Understandably, in some examples, there are two vacuum adsorption plates 230, one of which can adsorb and fix the positive electrode 110, and the other vacuum adsorption plate 230 can adsorb and fix the negative electrode 120. In other examples, there are four vacuum adsorption plates 230, two of which are used to adsorb and fix the negative electrode 120, and the other two are used to adsorb and fix the positive electrode 110. When two of the vacuum adsorption plates 230 are transferred to the electrode composite mechanism 200, the other two vacuum adsorption plates 230 can be transferred to the coating station to adsorb and fix the coated negative electrode 120 and the coated positive electrode 110, and to serve as carriers to transfer the negative electrode 120 and the positive electrode 110 to the electrode composite mechanism 200.

[0061] In the electrode composite mechanism 200 provided in this embodiment of the invention, since the vacuum adsorption plate 230 is equipped with a first one-way valve 231 and a second one-way valve, the vacuum adsorption plate 230 can adsorb and fix the electrode 100 placed on the vacuum adsorption plate 230 when a vacuum is drawn, and can release the vacuum adsorption effect on the electrode 100 when the vacuum is broken, so as to transfer the electrode 100. At this time, the vacuum adsorption plate 230 can serve as a carrier for the electrode 100, allowing the vacuum adsorption plate 230 to stably carry the electrode 100 from other stations such as the coating station or curing station to the composite station. Therefore, it can save the correction process before the electrode 100 is composited, improve the composite efficiency of the electrode 100, and make the structure of the electrode composite mechanism 200 more compact and reduce the manufacturing cost.

[0062] When two vacuum adsorption plates 230 with electrode plates 100 are transferred to the lifting device 220 and the transport device 210 respectively, the support mechanism can provide stable support for one of the vacuum adsorption plates 230. At the same time, under the operation of the second drive mechanism 218, the two support seats 213 can move closer to each other in the horizontal direction with the snap-fit ​​shafts, so that the two snap-fit ​​shafts can snap with the vacuum adsorption plate 230 located between them, so that the vacuum adsorption plate 230 is fixed with the snap-fit ​​shafts, and the mechanical positioning of the vacuum adsorption plate 230 is realized.

[0063] Then, the diaphragm 130 is placed on the electrode 100 of the vacuum adsorption plate 230 located at the lifting device 220. Next, the translation mechanism operates, sending the support base 213, the vacuum adsorption plate 230, and the electrode 100 to a position above the lifting device 220. Under the operation of the third drive mechanism 216, the two locking shafts can drive the vacuum adsorption plate 230 to rotate, causing the vacuum adsorption plate 230 to flip so that the electrode 100 on it faces downward, thereby adjusting the position of the electrode 100. Finally, under the operation of the first drive mechanism 222, the support mechanism drives the vacuum adsorption plate 230 to move vertically upward, causing the electrode 100 on the lower side, the diaphragm 130, and the electrode 100 on the upper side to be pressed together in the vertical direction to manufacture a microcell, thereby achieving efficient electrode composite operation.

[0064] Understandably, in some examples, the electrode compounding mechanism 200 has only one compounding station; in other examples, the electrode compounding mechanism 200 has two or more compounding stations, each of which can operate independently.

[0065] In some embodiments, such as Figures 9 to 12 As shown, the support mechanism includes a lifting seat 223, a rotating seat 226, and a fourth drive mechanism 228.

[0066] The output end of the first drive mechanism 222 is fixedly connected to the lifting seat 223. When the first drive mechanism 222 is running, its output end can drive the lifting seat 223 to move linearly in the vertical direction. A rotating seat 226 is disposed above the lifting seat 223 and is rotatably connected to it. The rotation axis of the rotating seat 226 extends vertically, allowing it to rotate relative to the lifting seat 223 on a horizontal plane. A fourth drive mechanism 228 is fixedly disposed on the lifting seat 223 and is used to drive the rotating seat 226 to rotate 180° on the horizontal plane. The fourth drive mechanism 228 can be a motor or a rotary cylinder.

[0067] The upper surface of the rotating base 226 is provided with several positioning parts 227. The function of the positioning parts 227 is to engage with the vacuum adsorption plate 230. Specifically, the positioning parts 227 are cylindrical and extend in the vertical direction. There are at least two positioning parts 227. Correspondingly, the lower surface of the vacuum adsorption plate 230 is provided with positioning holes 233. The positioning holes 233 are circular holes. The positioning parts 227 can be adapted to connect with the positioning holes 233, so that the vacuum adsorption plate 230 and the rotating base 226 are engaged and positioned, preventing the vacuum adsorption plate 230 from shifting on the horizontal plane.

[0068] In this embodiment, there are two positioning parts 227, which are arranged opposite each other in the horizontal direction. The positioning parts 227 are pins, and the pins are fixedly connected to the rotating seat 226. The vacuum adsorption plate 230 is provided with two positioning holes 233, which are spaced apart along the width direction of the vacuum adsorption plate 230. By operating the handling robot, the vacuum adsorption plate 230 can be placed on the rotating seat 226 from top to bottom, and the positioning parts 227 can be inserted into the positioning holes 233. The vacuum adsorption plate 230 can also be lifted upwards, so that the vacuum adsorption plate 230 can be transferred away from the rotating seat 226.

[0069] In one specific embodiment, the rotating seat 226 is mounted on the upper surface of the lifting seat 223 via a slewing bearing. The fourth drive mechanism 228 is a motor, mounted on the lifting seat 223. The motor can mesh with the slewing bearing via gears. When the motor is running, it drives the gears to rotate the slewing bearing and the rotating seat 226. Furthermore, a rotation angle sensor 229 is provided on the lifting seat 223. The rotation angle sensor 229 can detect whether the rotating seat 226 has rotated the vacuum adsorption plate 230 by 180°. The fourth drive mechanism 228 is configured to stop operating when the rotation angle sensor 229 detects that the rotating seat 226 has rotated by 180°, thereby ensuring that the position of the vacuum adsorption plate 230 has been adjusted.

[0070] The bottom of the lifting seat 223 is provided with four guide rods 224, the length of which extends in the vertical direction. The fixed seat 221 is provided with a corresponding number of sleeves 225. The guide rods 224 are slidably connected to the sleeves 225. When the lifting seat 223 moves up and down relative to the fixed seat 221, the guide rods 224 can move up and down along the sleeves 225, which can improve the stability of the lifting movement of the lifting seat 223.

[0071] It is understandable that, such as Figure 2 As shown, during the composite process, the tab direction of the negative electrode 120 is opposite to that of the positive electrode 110, while during the coating process, the tab direction of the negative electrode 120 is the same as that of the positive electrode 110. Therefore, after the negative electrode 120 and the positive electrode 110 are transferred to the lifting device 220 and the transport device 210 respectively by the corresponding vacuum adsorption plate 230, the tab direction of the electrode 100 located on the lifting device 220 is accurately adjusted by the fourth drive mechanism 228 and the rotating seat 226 so that the negative electrode 120, the separator 130 and the positive electrode 110 can be composited to form a micro cell.

[0072] In some embodiments, such as Figure 3As shown, two lifting devices 220 are provided, and the two lifting devices 220 are arranged at a certain interval along the first direction. One lifting device 220 is used to lift the vacuum adsorption plate 230 on which the positive electrode 110 is adsorbed, and the other lifting device 220 is used to lift the vacuum adsorption plate 230 on which the negative electrode 120 is adsorbed. The translation mechanism can move along the first direction to either lifting device 220 so that the two locking shafts can engage with one of the vacuum adsorption plates 230, facilitating the transport device 210 to transport one of the vacuum adsorption plates 230 to a position directly above the other vacuum adsorption plate 230.

[0073] Understandably, before the composite work, the two vacuum adsorption plates 230 are transferred and placed on the two lifting devices 220 by a handling robot. When the tab direction of the electrode 100 needs to be adjusted, only the fourth drive mechanism 228 of one of the lifting devices 220 needs to be activated, driving the vacuum adsorption plate 230 to rotate the electrode 100 on it by 180° on the horizontal plane. Therefore, the fourth drive mechanism 228 and the rotating seat 226 can be set on one or both of the lifting devices 220. Next, the handling device 210 moves above one of the lifting devices 220, which lifts the vacuum adsorption plate 230 and the electrode 100 on it, so that the vacuum adsorption plate 230 moves up between the first snap-fit ​​shaft 214 and the second snap-fit ​​shaft 215, so that the vacuum adsorption plate 230 can be snapped and positioned with the first snap-fit ​​shaft 214 and the second snap-fit ​​shaft 215 respectively. Then, the conveying device 210 moves the vacuum adsorption plate 230 and the electrode 100 on it to a position above another lifting device 220, which lifts the vacuum adsorption plate 230 and the diaphragm 130 and electrode 100 on it, so that the electrode 100 and diaphragm 130 on the lower side and the electrode 100 on the upper side can press against each other, thereby creating a micro cell.

[0074] By setting two lifting devices 220, the two vacuum adsorption plates 230 can be accurately mechanically positioned. This avoids damage to the handling robot when the handling device 210 clamps and positions the vacuum adsorption plates 230. Furthermore, the handling robot can quickly place the two vacuum adsorption plates 230 onto the two lifting devices 220 respectively. Specifically, after the handling robot transfers one vacuum adsorption plate 230 to one of the lifting devices 220, the handling device 210 can move above the lifting device 220 to clamp and hold the lifted vacuum adsorption plate 230. At the same time, the handling robot can transfer the other vacuum adsorption plate 230 to the other lifting device 220. There is no need for the handling device 210 to clamp and fix the vacuum adsorption plate 230 carried by the handling robot before the handling robot moves the other vacuum adsorption plate 230, saving waiting time and improving the composite efficiency of the electrode 100.

[0075] In some embodiments, such as Figure 4 and Figure 5 As shown, the two clamping shafts are the first clamping shaft 214 and the second clamping shaft 215, respectively. The output end of the third drive mechanism 216 is connected to one end of the first clamping shaft 214. When the third drive mechanism 216 is running, its output end can drive the first clamping shaft 214 to rotate 180° around its own rotation axis. Furthermore, the second clamping shaft 215 has a through hole 219 that extends axially along the second clamping shaft 215. A vacuum tube is installed inside the through hole 219, coaxially arranged and rotatably connected to the second clamping shaft 215. The vacuum tube is used to connect to the first one-way valve 231. At this time, the first one-way valve 231 is located on one side of the vacuum adsorption plate 230 along its length and at the middle of the vacuum adsorption plate 230 along its width.

[0076] Understandably, the vacuum tube can be installed at the through hole 219 via a bearing. When the first locking shaft 214 and the second locking shaft 215 approach each other and are locked in place with the vacuum adsorption plate 230, one end of the vacuum tube can be accurately inserted into the first one-way valve 231, and the other end of the vacuum tube can be connected to the vacuum equipment via a pipe. Then, when the vacuum equipment is running, the first one-way valve 231 will switch from the closed state to the open state, and the gas in the vacuum chamber of the vacuum adsorption plate 230 will flow out through the vacuum tube, thereby reducing the internal pressure of the vacuum chamber.

[0077] Although the vacuum chamber of the vacuum adsorption plate 230 has a certain degree of vacuum, allowing it to transfer the electrode 100 from the coating and curing station to the lamination station, the conveying device 210 drives the vacuum adsorption plate 230 to rotate, causing the electrode 100 on the vacuum adsorption plate 230 to face downwards. To prevent the electrode 100 from falling off the vacuum adsorption plate 230 due to the adsorption and fixing effect of the vacuum adsorption plate 230 being less than the weight of the electrode 100, the following measures are taken: Therefore, a vacuum tube is added at the second snap-fit ​​shaft 215 on the conveying device 210. When the first snap-fit ​​shaft 214 and the second snap-fit ​​shaft 215 snap-fit ​​the vacuum adsorption plate 230, the vacuum tube can automatically and accurately complete the docking work with the first one-way valve 231. In order to reduce the air pressure inside the vacuum chamber of the vacuum adsorption plate 230 through the vacuum operation, enhance the vacuum adsorption effect of the vacuum adsorption plate 230 on the electrode 100, and ensure that the electrode 100 is not easily detached from the vacuum adsorption plate 230 during the flipping process.

[0078] When the vacuum adsorption plate 230 separates from the second clamping shaft 215, the first one-way valve 231 will switch from the conducting state to the cut-off state, ensuring that the vacuum chamber of the vacuum adsorption plate 230 maintains a certain vacuum level, so that the vacuum adsorption plate 230 can tightly adsorb the electrode 100.

[0079] Furthermore, such as Figure 4 , Figure 5 and Figure 7 As shown, the second snap-fit ​​shaft 215 has a relief groove 217 on one end face near the first snap-fit ​​shaft 214. The relief groove 217 extends vertically and communicates with the through hole 219, allowing the first one-way valve 231 to pass through. Specifically, the relief groove 217 is recessed on the end face of the second snap-fit ​​shaft 215 near the first snap-fit ​​shaft 214. The relief groove 217 extends radially along the second snap-fit ​​shaft 215 and extends through the outer circumferential surface of the second snap-fit ​​shaft 215. With this design, during the process of the vacuum adsorption plate 230 moving vertically to the position between the first snap-fit ​​shaft 214 and the second snap-fit ​​shaft 215, the relief groove 217 allows the first one-way valve 231 to pass through, thus reducing the moving distance of the second snap-fit ​​shaft 215 and its corresponding support 213 in the second direction, thereby improving the efficiency of the second snap-fit ​​shaft 215 in snapping and positioning the vacuum adsorption plate 230.

[0080] In this embodiment, as Figure 4 , Figure 5 , Figure 7 and Figure 8As shown, the vacuum tube includes a rotary joint 251 and an insertion joint 252. The insertion joint 252 is fixedly disposed at one end of the through hole 219. Specifically, the insertion joint 252 can be threaded onto the second snap-fit ​​shaft 215. The insertion joint 252 can rotate together with the second snap-fit ​​shaft 215 and the vacuum adsorption plate 230, and can be inserted into the first one-way valve 231. The rotary joint 251 is rotatably disposed at the other end of the through hole 219, thus allowing the second snap-fit ​​shaft 215 to rotate relative to the rotary joint 251. Furthermore, the rotary joint 251, the insertion joint 252, and the through hole 219 together form a vacuum tube.

[0081] Understandably, this design ensures that the first one-way valve 231 and the insertion connector 252 remain fixedly connected during the flipping operation of the vacuum adsorption plate 230, preventing the first one-way valve 231 from rotating relative to the insertion connector 252 and being easily damaged, and also saving materials. The end of the rotary joint 251 away from the through hole 219 can be connected to the vacuum equipment through a pipe.

[0082] In some embodiments, such as Figure 4 and Figure 5 As shown, the two locking shafts are a first locking shaft 214 and a second locking shaft 215, respectively. The third drive mechanism 216 can be used to drive the first locking shaft 214 to rotate. The second locking shaft 215 has an anti-rotation surface at one end away from the first locking shaft 214. There are two anti-rotation surfaces, and the two anti-rotation surfaces are located on opposite sides of the second locking shaft 215 in the circumferential direction.

[0083] Furthermore, the electrode composite mechanism 200 also includes an anti-rotation device. This anti-rotation device includes two anti-rotation members 282 and a fifth drive mechanism 281. Two anti-rotation members 282 are provided, arranged at a certain interval along the horizontal direction, and located on opposite sides of the second locking shaft 215 in the circumferential direction. The fifth drive mechanism 281 can be fixedly mounted on the translation mechanism or on the support base 213. The function of the fifth drive mechanism 281 is to drive the two anti-rotation members 282 closer together and abut against the corresponding anti-rotation surfaces, thereby enabling the two anti-rotation members 282 to jointly clamp and fix the second locking shaft 215.

[0084] It is understood that the fifth drive mechanism 281 can be a pneumatic cylinder, an electric cylinder, a hydraulic cylinder, or a linear module, etc. In some examples, there is only one fifth drive mechanism 281, which simultaneously drives the movement of two anti-rotation members 282. In other examples, there are two fifth drive mechanisms 281, which each drive the movement of two anti-rotation members 282. The anti-rotation member 282 can be a plate or a roller.

[0085] After the first clamping shaft 214 and the second clamping shaft 215 flip the vacuum adsorption plate 230, the fifth drive mechanism 281 operates, causing the two anti-rotation members 282 to clamp and fix the second clamping shaft 215. Then, the second drive mechanism 218 operates, allowing the support base 213 to drive the second clamping shaft 215 to move in the second direction. During this process, since the second clamping shaft 215 remains in an anti-rotation state, it can ensure that the second clamping shaft 215 is accurately inserted and positioned with the vacuum adsorption plate 230. In addition, when laminating the electrode 100, by clamping and fixing the second clamping shaft 215, the second clamping shaft 215 can exert an anti-rotation effect on the vacuum adsorption plate 230, ensuring that the coating surface 101 of the electrode 100 always remains horizontal and facing downwards, preventing the vacuum adsorption plate 230 from rotating during the electrode 100 pressing process, which would reduce the lamination effect of the electrode 100.

[0086] In this embodiment, as Figure 4 and Figure 5 As shown, a fifth drive mechanism 281 is provided, which is a pneumatic gripper. The two gripping arms of the pneumatic gripper are fixedly connected to two anti-rotation members 282. The anti-rotation member 282 includes a roller. The central axis of the roller extends in the vertical direction, and the outer circumferential surface of the roller can contact the anti-rotation surface. The roller can be mounted on the two gripping arms of the pneumatic gripper through a connecting plate. When the pneumatic gripper is in operation, the two rollers can approach each other and contact the corresponding anti-rotation surfaces, so that the two rollers can stably clamp the second locking shaft 215.

[0087] In this case, the fifth drive mechanism 281 can be mounted on the translation seat 211. When the support seat 213 and the second locking shaft 215 move in the second direction, the roller can roll on the anti-rotation surface and maintain contact with the anti-rotation surface. This can reduce the wear of the anti-rotation member 282 when the second locking shaft 215 moves relative to the anti-rotation member 282 in the second direction.

[0088] Furthermore, the electrode composite mechanism 200 also includes a detection device and a control device. The detection device generates a detection signal when the second clamping shaft 215 rotates 180°. The control device is electrically connected to both the detection device and the fifth drive mechanism 281. The control device controls the fifth drive mechanism 281 to move the two anti-rotation members 282 closer together based on the detection signal generated by the detection device, and controls the fifth drive mechanism 281 to move the two anti-rotation members 282 away after the second clamping shaft 215 is clamped with the vacuum adsorption plate 230.

[0089] Understandably, the detection device can be an angle sensor. The control device can be a 51 microcontroller, a PLC controller, or a host computer. The detection signal from the detection device can be transmitted to the control device, which will then send a start control command to the fifth drive mechanism 281, causing the two anti-rotation parts 282 to approach each other under the operation of the fifth drive mechanism 281 and clamp and fix the second snap-fit ​​shaft 215, so that the second snap-fit ​​shaft 215 can be accurately inserted into the first one-way valve 231 on the vacuum adsorption plate 230.

[0090] The second drive mechanism 218 is electrically connected to the control device. The control device can control the operation and stop of the second drive mechanism 218. After the second drive mechanism 218 has finished running and caused the first snap-fit ​​shaft 214 and the second snap-fit ​​shaft 215 to snap-fit ​​and position with the vacuum adsorption plate 230, the control device will send an operation control command to the fifth drive mechanism 281. The fifth drive mechanism 281 drives the two anti-rotation members 282 to move away from each other, so as to release the clamping and fixing effect of the two anti-rotation members 282 on the second snap-fit ​​shaft 215, so that the first snap-fit ​​shaft 214, the vacuum adsorption plate 230 and the second snap-fit ​​shaft 215 can be rotated by the third drive mechanism 216 to complete the flipping operation of the electrode 100.

[0091] In this embodiment, as Figure 4 , Figure 5 , Figure 7 and Figure 8 As shown, the detection device includes a turntable 262 and a slotted photoelectric switch 261. The turntable 262 is coaxially arranged with the second locking shaft 215 and is fixedly connected to it, allowing the turntable 262 to rotate synchronously with the second locking shaft 215. The turntable 262 has notches 263 on opposite sides along its circumference. The notches 263 can be U-shaped openings. The notches 263 allow the detection beam from the slotted photoelectric switch 261 to pass through. The turntable 262 can be located at the end of the second locking shaft 215 furthest from the first locking shaft 214.

[0092] The slotted photoelectric switch 261 is fixedly mounted on the support base 213 and located on one side of the outer periphery of the turntable 262. The function of the slotted photoelectric switch 261 is to generate a detection signal when any notch 263 on the turntable 262 rotates into the detection area of ​​the slotted photoelectric switch 261.

[0093] Understandably, when one of the notches 263 on the turntable 262 is located in the detection area of ​​the slotted photoelectric switch 261, the detection beam of the slotted photoelectric switch 261 is not blocked, thus the slotted photoelectric switch 261 can generate a detection signal and send it to the control device. At this time, the second locking shaft 215 can accurately align with the vacuum adsorption plate 230. After the turntable 262 rotates 180° with the second locking shaft 215, the other notch 263 on the turntable 262 rotates to the detection area of ​​the slotted photoelectric switch 261, causing the slotted photoelectric switch 261 to generate a detection signal again. This indicates that the second locking shaft 215 has rotated into position and the flipping of the electrode 100 has been completed. Therefore, the second locking shaft 215 can be stopped from rotating by the anti-rotation device, so that the second locking shaft 215, the vacuum adsorption plate 230, and the first locking shaft 214 remain stable and do not rotate. During the rotation of the second card shaft 215, the area of ​​the turntable 262, excluding the notch 263, will block and reflect the detection beam of the slotted photoelectric switch 261.

[0094] The electrode composite mechanism 200 of this invention is used as follows: First, a vacuum adsorption plate 230 with a coated positive electrode 110 is placed on one of the lifting devices 220 by a handling robot, and a vacuum adsorption plate 230 with a coated negative electrode 120 is placed on another lifting device 220. At this time, the vacuum adsorption plate 230 is snapped and positioned on the rotating seat 226. Then, one of the lifting devices 220 operates, driving the vacuum adsorption plate 230 to rotate 180° on the horizontal plane through the rotating seat 226, thereby completing the adjustment of the tab direction of the electrode 100.

[0095] The conveying device 210 moves along a first direction to directly above one of the lifting devices 220, which lifts the vacuum adsorption plate 230, raising it to a position between the first locking shaft 214 and the second locking shaft 215 of the conveying device 210. Then, the second drive mechanism 218 operates, causing the first locking shaft 214 and the second locking shaft 215 to move along with the corresponding support base 213, bringing them closer together and engaging with the vacuum adsorption plate 230, thus clamping and fixing the vacuum adsorption plate 230 together. This allows the lifting device 220 to drive the rotating base 226 downwards, separating the rotating base 226 from the vacuum adsorption plate 230. During this process, a handling robot can be used to place the diaphragm 130 on the vacuum adsorption plate 230 of another lifting device 220, so that the diaphragm 130 presses against the electrode 100 on the vacuum adsorption plate 230.

[0096] Subsequently, the conveying device 210 moves along the first direction above another lifting device 220, causing the two vacuum adsorption plates 230 to be arranged opposite each other in the vertical direction. It can be understood that before, during, or after the conveying device 210 moves linearly, the third drive mechanism 216 operates, driving the first locking shaft 214 and the second locking shaft 215 to rotate the vacuum adsorption plates 230, thus completing the 180° flipping process of the electrode 100. When the two vacuum adsorption plates 230 are vertically opposite each other, the other lifting device 220 operates to lift the vacuum adsorption plate 230 with the diaphragm 130 and the electrode 100, causing the electrode 100 on the upper side, the diaphragm 130, and the electrode 100 on the lower side to press together to form a microcell, thereby completing the composite process of the electrode 100.

[0097] During the pressing process, the handling robot can transfer the next vacuum adsorption plate 230 to the lifting device 220 so that the handling device 210 can handle it after the pressing process.

[0098] When the second clamping shaft 215 is clamped and positioned with the vacuum adsorption plate 230, a vacuuming operation can be performed on the vacuum adsorption plate 230 through the vacuum tube until the electrode composite process is completed. After the electrode 100 is composited, the vacuuming operation is stopped; then, the vacuum adsorption plate 230 on the conveying device 210 is degassed by the vacuum breaking device, releasing the adsorption and fixing effect of the vacuum adsorption plate 230 on the electrode 100. At this time, the vacuum adsorption plate 230 on the lifting device 220 still maintains a vacuum adsorption state, which can apply an adsorption and fixing effect to the composite microcell, making it easy for the vacuum adsorption plate 230 to transfer the microcell to the next station.

[0099] After the vacuum adsorption plate 230 on the conveying device 210 completes the vacuum breaking process, the vacuum adsorption plate 230 separates from the electrode 100 on it. Then, the conveying device 210 returns to one of the lifting devices 220 to clamp, position, and transport the next vacuum adsorption plate 230. At this time, the conveying robot will transfer the next vacuum adsorption plate 230 to another lifting device 220.

[0100] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0101] Although embodiments of the invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. An electrode composite mechanism, characterized in that, include: A lifting device includes a support mechanism and a first drive mechanism. The first drive mechanism is used to drive the support mechanism to rise and fall. The support mechanism is used to support a vacuum adsorption plate. The vacuum adsorption plate is used to adsorb electrode sheets. The vacuum adsorption plate is provided with a first one-way valve for opening when vacuuming and a second one-way valve for opening when breaking the vacuum. A conveying device includes a translation mechanism, support seats, locking shafts, a second drive mechanism, and a third drive mechanism. Two support seats are provided, respectively located on opposite sides of the translation mechanism. Two locking shafts are provided, rotatably mounted on the two support seats, arranged horizontally and oppositely. The second drive mechanism is located on the translation mechanism and drives the two support seats to approach each other, so that the two locking shafts approach and lock onto the vacuum adsorption plate located between the two locking shafts. The third drive mechanism is located on one of the support seats and drives one of the locking shafts to rotate, so that the locking shaft causes the vacuum adsorption plate to flip. The translation mechanism can move towards the lifting device, so that the lifted vacuum adsorption plate and the flipped vacuum adsorption plate can perform electrode bonding.

2. The electrode composite mechanism according to claim 1, characterized in that, The support mechanism includes a lifting seat, a rotating seat, and a fourth drive mechanism. The output end of the first drive mechanism is connected to the lifting seat to drive the lifting seat to move in the vertical direction. The rotating seat is located above the lifting seat and is rotatably connected to the lifting seat. The upper surface of the rotating seat is provided with a plurality of positioning parts for engaging with the vacuum adsorption plate. The fourth drive mechanism is located on the lifting seat and is used to drive the rotating seat to rotate 180° on the horizontal plane.

3. The electrode composite mechanism according to claim 2, characterized in that, The positioning part is cylindrical and extends in the vertical direction, and there are at least two positioning parts.

4. The electrode composite mechanism according to any one of claims 1 to 3, characterized in that, Two lifting devices are provided and arranged at intervals along a first direction. One lifting device is used to lift the vacuum adsorption plate on which the positive electrode sheet is adsorbed, and the other lifting device is used to lift the vacuum adsorption plate on which the negative electrode sheet is adsorbed. The translation mechanism can move along the first direction to either of the lifting devices so that the two locking shafts can lock into one of the vacuum adsorption plates. The first direction is perpendicular to the up and down direction.

5. The electrode composite mechanism according to claim 1, characterized in that, The two locking shafts are a first locking shaft and a second locking shaft, respectively. The output end of the third driving mechanism is connected to one end of the first locking shaft to drive the first locking shaft to rotate 180°. The second locking shaft is provided with a through hole, and a vacuum tube is provided in the through hole. The vacuum tube is coaxially arranged with the second locking shaft and rotatably connected. The vacuum tube is used to be inserted into the first one-way valve.

6. The electrode composite mechanism according to claim 5, characterized in that, The second snap-fit ​​shaft has a clearance groove on one end face near the first snap-fit ​​shaft. The clearance groove extends vertically and communicates with the through hole to allow clearance from the first one-way valve; and / or, The vacuum tube includes a rotary joint and an insertion joint. The insertion joint is fixed at one end of the through hole and can be inserted into the first one-way valve. The rotary joint is rotatable at the other end of the through hole and together with the insertion joint and the through hole, they form a vacuum tube.

7. The electrode composite mechanism according to claim 1, characterized in that, The two locking shafts are a first locking shaft and a second locking shaft, and the third driving mechanism is used to drive the first locking shaft to rotate. The end of the second locking shaft away from the first locking shaft is provided with an anti-rotation surface. There are two anti-rotation surfaces, which are located on opposite sides of the second locking shaft in the circumferential direction. The electrode composite mechanism further includes: An anti-rotation device includes anti-rotation components and a fifth driving mechanism. Two anti-rotation components are provided and arranged at intervals in the horizontal direction and respectively located on opposite sides of the second snap-fit ​​shaft in the circumferential direction. The fifth driving mechanism is provided on the translation mechanism or the support base. The fifth driving mechanism is used to drive the two anti-rotation components to approach each other and abut against the corresponding anti-rotation surfaces.

8. The electrode composite mechanism according to claim 7, characterized in that, The electrode composite mechanism further includes: A detection device for generating a detection signal when the second snap-fit ​​shaft rotates 180°; A control device is electrically connected to the detection device and the fifth drive mechanism respectively. The control device is used to control the fifth drive mechanism to drive the two anti-rotation members to move closer together according to the detection signal, and to control the fifth drive mechanism to drive the two anti-rotation members to move away from each other after the second snap-fit ​​shaft snaps into the vacuum adsorption plate.

9. The electrode composite mechanism according to claim 8, characterized in that, The detection device includes a turntable and a slotted photoelectric switch. The turntable is coaxially arranged and fixedly connected to the second locking shaft. The turntable has notches on opposite sides along its circumference. The slotted photoelectric switch is mounted on the support base and generates a detection signal when any of the notches rotates into the detection area of ​​the slotted photoelectric switch; and / or, The anti-rotation component includes a roller, the central axis of which extends in the vertical direction, and the outer circumferential surface of which can contact the anti-rotation surface.

10. The electrode composite mechanism according to claim 1, characterized in that, The translation mechanism includes a translation base and a sixth drive mechanism. The translation base is provided with a clearance hole for the vacuum adsorption plate being lifted to pass through. The sixth drive mechanism is used to drive the translation base closer to or further away from the lifting device; and / or, Each of the aforementioned snap-fit ​​shafts is provided with a plurality of snap-fit ​​protrusions, which are used to insert into the insertion holes of the vacuum adsorption plate when two of the aforementioned snap-fit ​​shafts are close together; and / or, The electrode composite mechanism also includes the vacuum adsorption plate, and the vacuum adsorption plate is provided in at least two pieces. At least one vacuum adsorption plate is used for vacuum adsorption of the negative electrode sheet, and at least one vacuum adsorption plate is used for vacuum adsorption of the positive electrode sheet.

Images