Lamination device and lamination equipment

Abstract

The utility model discloses a lamination device and lamination equipment, the lamination device is used for extracting to-be-laminated pole pieces, and the lamination device comprises a suction plate, a first conveying part and a second transmission block; the suction plate comprises a first suction plate side face and a second suction plate side face which are oppositely arranged in the first direction. The first side face of the suction plate is arranged to be a first plane, and at least one through hole is formed in the first plane. The suction plate second side is connected with the first conveying part; one end of the first conveying part is detachably connected with the second side face of the suction plate, and the first conveying part can drive the suction plate to move in the first direction. The other end of the first conveying part is movably connected with the second transmission block; the side, facing the first conveying component, of the second transmission block is provided with a sliding part, the sliding part extends in the second direction, the other end of the first conveying component is movably connected with the second transmission block through the sliding part and moves in the second direction, and the first direction is perpendicular to the first plane. By means of the scheme, the situation that the appearance of the pole piece is poor such as arching or suction nozzle marks can be reduced.

Description

Technical Field

[0001] This disclosure generally relates to the field of lithium battery technology. More specifically, this disclosure relates to a stacking apparatus and a stacking device. Background Technology

[0002] Stacking and loading is a crucial step in lithium-ion battery manufacturing. The stacking process involves alternately stacking positive and negative electrode sheets and separators to form the bare battery cell. In stacking, loading refers to placing the slit positive and negative electrode sheets and separator material into designated positions on the stacking machine, ready for stacking. This process requires precise control to ensure correct material placement and accurate subsequent stacking. During loading, a robotic arm can pick up the electrode sheets from the material frame and transport them to a charge-coupled device (CCD) image sensor platform for positioning, completing the electrode transfer function and ensuring the electrodes are free of powder shedding, cracking, and other appearance defects.

[0003] Traditional robotic arms for loading electrodes use multiple 10mm diameter vacuum nozzles to form a stacked suction cup to pick up and transport the electrodes to a CCD platform. During electrode transfer, the parallelism of each vacuum nozzle is critical. Uneven nozzle height can cause the electrodes to arch, leading to inaccurate positioning or nozzle marks and other cosmetic defects. When these arched electrodes are placed on the CCD platform, the CCD may misjudge them as being out of position and attempt to correct the deviation, incorrectly classifying qualified electrodes as defective and discarding them. This negatively impacts yield and production efficiency.

[0004] In view of this, there is an urgent need to provide a stacking device and stacking equipment to ensure that each nozzle is at the same height, thereby reducing the appearance defects of the electrode such as arching or nozzle marks, thus avoiding the situation where the electrode is misjudged and discarded, and improving the yield of electrode and production efficiency. Utility Model Content

[0005] In order to at least solve one or more of the technical problems mentioned above, this disclosure proposes a stacking apparatus and a stacking device in several aspects.

[0006] In a first aspect, this disclosure provides a stacking apparatus for extracting electrodes to be stacked. The stacking apparatus includes a suction plate, a first conveying component, and a second transmission block. The suction plate includes a first side surface and a second side surface disposed opposite to each other along a first direction. The first side surface of the suction plate is configured as a first plane, and at least one through hole is provided on the first plane. The second side surface of the suction plate is connected to the first conveying component. One end of the first conveying component is detachably connected to the second side surface of the suction plate and is capable of driving the suction plate to move in the first direction. The other end of the first conveying component is movably connected to the second transmission block. The second transmission block has a sliding portion on the side facing the first conveying component, and the sliding portion extends in a second direction. The other end of the first conveying component is movably connected to the second transmission block through the sliding portion and moves along the second direction. The first direction is perpendicular to the first plane, and the second direction is parallel to the first plane and perpendicular to the first direction.

[0007] In some embodiments, a plurality of the through holes are arranged in an array, and a portion of the through holes are configured as through holes in the electrode body portion and another portion of the through holes are configured as through holes in the electrode tab portion, respectively corresponding to the body portion and the electrode tab portion of the electrode to be stacked.

[0008] In some embodiments, the suction plate includes an adsorption channel, one end of which is provided with a suction nozzle, the suction nozzle connecting the external space of the suction plate with the internal space of the adsorption channel; the suction nozzle is disposed inside the through hole; and / or, the suction nozzle is located on the side of the second side of the suction plate opposite to the first side of the suction plate.

[0009] In some embodiments, the suction plate includes a suction plate base and a suction plate pressing block detachably connected to the suction plate base. Along the first direction, the side of the suction plate pressing block opposite to the suction plate base forms the first side surface of the suction plate, and the side of the suction plate base opposite to the suction plate pressing block forms the second side surface of the suction plate. The through hole penetrates the suction plate base and the suction plate pressing block.

[0010] In some embodiments, the suction plate base includes a base body and a base protrusion, the suction plate pressing block includes a pressing block body and a pressing block protrusion, the base body and the pressing block body are correspondingly provided with through holes of the electrode body, and the base protrusion and the pressing block protrusion are correspondingly provided with through holes of the electrode ear.

[0011] In some embodiments, the other end of the first conveying member includes a first protrusion, and the sliding portion includes a groove extending along the second direction. The first protrusion slides into the groove to allow the first conveying member to slide along the second direction.

[0012] In some embodiments, the first conveying component includes a fixing block and a transmission rod extending along the first direction; the transmission rod is threadedly connected to a second side of the suction plate along a first side of the suction plate in the first direction, so as to realize the first conveying component and the second side of the suction plate being detachably connected, and the transmission rod is movable in the first direction to drive the suction plate to move in the first direction; the transmission rod is connected to the fixing block on a second side away from the suction plate, and the fixing block is provided with the first protrusion; the transmission rod is movably connected to the slide groove through the fixing block to drive the suction plate to move in the second direction.

[0013] In some embodiments, the groove includes a first bottom surface parallel to the second direction, a second side surface and a third side surface forming an acute angle or a right angle with the first bottom surface, and the second side surface and the third side surface are disposed opposite each other along a third third direction, the third third direction being parallel to the first plane and perpendicular to the first direction and the second direction respectively; the first protrusion includes a fourth top surface parallel to the first bottom surface, a fifth side surface parallel to the second side surface, and a sixth side surface parallel to the third side surface.

[0014] In some embodiments, the stacking apparatus further includes a detection platform and a detection component. The detection platform is disposed away from the first side of the suction plate along the first direction, and the detection component is disposed on the detection platform. The detection platform is used to carry the electrode to be stacked and cooperates with the detection component to detect the electrode to be stacked.

[0015] In a second aspect, this disclosure provides a stacking apparatus, the apparatus including a stacking device as described in any of the first aspects, the material frame for holding the electrode to be stacked, and the stacking device for extracting the electrode to be stacked from the material frame and stacking it to form a stacked core.

[0016] By using the stacking device and equipment provided above, the appearance defects such as arching or nozzle marks on the electrode sheets can be reduced, thereby avoiding the situation where the electrode sheets are misjudged and discarded, and improving the yield and production efficiency of the electrode sheets. Attached Figure Description

[0017] The above and other objects, features, and advantages of exemplary embodiments of this disclosure will become readily apparent upon reading the following detailed description with reference to the accompanying drawings. In the drawings, several embodiments of this disclosure are illustrated by way of example and not limitation, and like or corresponding reference numerals denote like or corresponding parts, wherein:

[0018] Figure 1A perspective view of an apparatus for extracting a workpiece, according to some embodiments of this disclosure, is shown;

[0019] Figure 2a An exemplary structural diagram of a suction nozzle according to some embodiments of this disclosure is shown;

[0020] Figure 2b An exemplary structural diagram of the suction nozzle outside the through hole is shown, representing some embodiments of this disclosure;

[0021] Figure 2c An exemplary structural diagram of the suction nozzle inside the through hole is shown, representing some embodiments of this disclosure;

[0022] Figure 2d An exemplary structural diagram of the suction nozzle inside the through hole is shown, representing some other embodiments of this disclosure;

[0023] Figure 3a An exemplary structural diagram of a suction plate according to some embodiments of this disclosure is shown;

[0024] Figure 3b Exemplary structural diagrams of the suction plate after removing the pressure plate, representing some embodiments of this disclosure, are shown; and

[0025] Figure 4 A perspective view of an apparatus for extracting a workpiece, according to some other embodiments of this disclosure, is shown.

[0026] Tag Name

[0027] 10 suction plates;

[0028] 111 First plane, 112 Through hole, 1121 First through hole, 1122 Second through hole, 12 Second side of suction plate, 13 Suction nozzle, 131 First end of suction nozzle, 132 Second end of suction nozzle, 14 Suction plate base, 15 Suction plate pressing block, 151 First flat plate, 152 Third through hole, 153 Fourth through hole.

[0029] 20 First conveying component, 211 Transmission rod, 222 Fixing block;

[0030] 30 Second transmission block, 31 First side of second transmission part, 311 Slide groove, 3111 First bottom surface, 3112 Second side surface, 3113 Third side surface;

[0031] 41 Testing Platform, 411 Vacuum Pipeline;

[0032] 50. Material frame. Detailed Implementation

[0033] The technical solutions in the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this disclosure, not all of them. Based on the embodiments in this disclosure, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this disclosure.

[0034] It should be understood that the terms “comprising” and “including” used in this disclosure and claims indicate the presence of the described features, integrals, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components and / or collections thereof.

[0035] It should also be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the scope of this disclosure. As used in this disclosure and claims, the singular forms “a,” “an,” and “the” are intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used in this disclosure and claims refers to any combination and all possible combinations of one or more of the associated listed items, and includes such combinations.

[0036] As used in this specification and claims, the term "if" may be interpreted, depending on the context, as "when," "once," "in response to determination," or "in response to detection." Similarly, the phrase "if determined" or "if [described condition or event] is detected" may be interpreted, depending on the context, as "once determined," "in response to determination," "once [described condition or event] is detected," or "in response to detection of [described condition or event]."

[0037] The specific embodiments disclosed herein will now be described in detail with reference to the accompanying drawings.

[0038] Figure 1 A perspective view of an apparatus for extracting a workpiece according to some embodiments of this disclosure is shown. It should be understood that the first direction, second direction, and third direction mentioned below refer to the directions shown in the figures. The aforementioned first direction, second direction, and third direction can all be the direction of the arrows in the figures and the direction opposite to the arrows. Specifically, the two ends of the aforementioned first direction can be divided into upper and lower sides, the two ends of the aforementioned second direction can be divided into left and right sides, and the two ends of the aforementioned third direction can be divided into front and rear sides.

[0039] like Figure 1As shown, the stacking device includes a suction plate 10, a first conveying component 20, and a second transmission block 30. The suction plate 10 includes a first side surface and a second side surface 12 of the suction plate arranged opposite each other along a first direction. The first side surface of the suction plate is configured as a first plane 111, and at least one through hole 112 is provided on the first plane 111. The second side surface 12 of the suction plate is connected to the first conveying component 20. One end of the first conveying component 20 is detachably connected to the second side surface 12 of the suction plate and can drive the suction plate 10 to move in the first direction. The other end of the first conveying component 20 is movably connected to the second transmission block 30. The second transmission block 30 has a sliding part on the side facing the first conveying component 20. The sliding part extends in a second direction. The other end of the first conveying component 20 is movably connected to the second transmission block 30 through the sliding part and moves along the second direction. The first direction is perpendicular to the first plane 111, and the second direction is parallel to the first plane 111 and perpendicular to the first direction.

[0040] In some embodiments, the aforementioned suction plate 10 can be a flat plate with a certain thickness. The first side of the suction plate 10 can be the lower side of one of the two planes perpendicular to the first direction. The second side 12 of the suction plate 10 can be the upper side of one of the two planes perpendicular to the first direction. At least one through hole 112 can be provided on the first plane 111. The through hole 112 can be used to generate an adsorption force to adsorb the workpiece.

[0041] In some embodiments, the aforementioned through-hole 112 can be connected to an adsorption component, such as an electromagnetic adsorption device, an electrostatic adsorption device, or a vacuum adsorption device, so that the electrode can be provided with adsorption force through the aforementioned through-hole 112. Preferably, a vacuum adsorption device can be selected.

[0042] The vacuum suction cup of the aforementioned vacuum adsorption device can be fixedly installed on the suction plate 10, and one end of it can be connected to a vacuum generator or a negative pressure device through a pipe. The other end of the vacuum suction cup can be provided with a suction head, which can be made of elastic materials such as rubber or silicone, and is set in the through hole 112 and can be flush with the lower surface of the suction plate 10. The suction head can also be set in the through hole 112 and its tip does not extend beyond the lower surface of the suction plate 10.

[0043] When the aforementioned first conveying component 20 moves the suction plate 10 to a position close to the electrode in the first direction, the suction head of the vacuum suction cup can use the pressure difference between the external atmospheric pressure and the vacuum environment to adsorb the electrode onto the lower surface of the suction plate 10.

[0044] In some embodiments, when a through hole 112 is provided on the first plane 111, the through hole 112 can be located at the center of the first plane 111, thereby ensuring that the suction force of the through hole 112 is located at the center of the electrode during the electrode suction process, which can make the electrode uniformly stressed and avoid uneven stress on the electrode. When multiple first through holes 112 are provided on the first plane 111, the multiple first through holes 112 can be randomly distributed on the first plane 111 or arranged in an array.

[0045] like Figure 1 As shown, in some embodiments, the aforementioned first conveying component 20 may be located above the aforementioned suction plate 10. One end of the aforementioned first conveying component 20 may be the lower side of the first conveying component 20, and the other end may be the upper side of the first conveying component 20. One end of the aforementioned first conveying component 20 may be detachably connected to the second side surface 12 of the aforementioned suction plate, and may move in the first direction, thereby driving the aforementioned suction plate 10 to move in the first direction. In some embodiments, one end of the first conveying component 20 may be connected to the aforementioned suction plate 10 by a thread or by a snap-fit ​​connection.

[0046] In some embodiments, the aforementioned first conveying component 20 can be a cylinder, the moving rod of the aforementioned cylinder can be one end of the first conveying component 20, and the fixed part of the aforementioned cylinder can be the other end of the aforementioned first conveying component 20. When the aforementioned first conveying component 20 is in the working state, the fixed part of the aforementioned cylinder can remain stationary, the moving rod of the aforementioned cylinder can move in the first direction, and drive the aforementioned suction plate 10 to move in the first direction. When the aforementioned suction plate 10 approaches the aforementioned electrode, it can adsorb the aforementioned electrode.

[0047] In some embodiments, the aforementioned first conveying component 20 may also be a rack and pinion conveying component, wherein the rack may be one end of the first conveying component 20 and detachably connected to the suction plate 10, and the aforementioned gear may be the other end of the first conveying component 20. In the working state, the aforementioned gear can rotate and drive the aforementioned rack to move in the first direction, thereby driving the aforementioned suction plate 10 to move in the first direction.

[0048] In some embodiments, the other end of the aforementioned first conveying member 20 may be movably connected to the aforementioned second transmission block 30. Specifically, the other end of the aforementioned first conveying member 20 may form a first protrusion along a first direction, and the aforementioned first protrusion may be movably connected to the aforementioned second transmission block 30. In some embodiments, along the first direction from bottom to top, the length of the aforementioned first protrusion in a third direction may gradually increase, and the top of the aforementioned first protrusion may be at the position where the length is greatest in the third direction. In some embodiments, the aforementioned gradual increase may include a continuous increase in length in the third direction, wherein the third direction is parallel to the first plane 111 and perpendicular to both the first direction and the second direction.

[0049] In some embodiments, the second transmission block 30 may have a sliding portion on the side facing the first transmission member 20, and the sliding portion may extend in a second direction. Specifically, the second transmission block 30 may include a first side 31 of the second transmission portion, on which a groove 311 is formed that is opposite to the first protrusion and extends along the second direction. It is understood that, in the first direction from bottom to top, the length of the groove 311 in the third direction may also gradually increase, and the degree to which the length of the groove 311 in the third direction gradually increases may be the same as the degree to which the length of the first protrusion in the third direction gradually increases, so that the first protrusion and the groove 311 cooperate, so that the first protrusion is disposed in the groove 311 and can slide along the second direction. In some embodiments, the gradual increase may include a continuous increase in length in the third direction.

[0050] In some implementations, the aforementioned device may further include a driving component, which may be connected to the aforementioned second transmission block 30 and drive the aforementioned second transmission block 30 to reciprocate in the second direction. The aforementioned driving component may include a motor, which may be a servo motor or a stepper motor. Preferably, a servo motor may be used to ensure that the aforementioned driving component has high precision, thereby enabling precise control of the movement of the aforementioned second transmission block 30 in the second direction.

[0051] With the aforementioned device, when picking up the electrode sheet, it can be ensured that all parts of the electrode sheet are on the same horizontal plane, which can reduce the appearance defects such as arching or nozzle marks on the electrode sheet, thereby avoiding the situation where the electrode sheet is mistakenly discarded, and improving the yield of electrode sheets and production efficiency.

[0052] In some embodiments, a plurality of through holes 112 are arranged in an array, and a portion of the through holes 112 are configured as through holes in the electrode body portion and another portion of the through holes 112 are configured as through holes in the electrode tab portion, respectively corresponding to the body portion and the electrode tab portion of the electrode to be stacked.

[0053] In some embodiments, when there are multiple through holes 112, they can be arranged in an array. It should be understood that some of the through holes 112 can be configured as through holes in the electrode body portion. When the through holes 112 pick up the electrode, the through holes in the electrode body portion can face the electrode body, allowing for the picking up of the electrode body. Another portion of the through holes 112 can be configured as through holes in the tab portion. When the through holes 112 pick up the electrode, the through holes in the tab portion can face the tab of the electrode, allowing for the picking up of the tab.

[0054] In some embodiments, when a plurality of first through holes 112 are provided on the first plane 111, the plurality of first through holes 112 can be arranged in an array on the first plane 111. Specifically, the plurality of first through holes 112 can be arranged in a circular, triangular, or rectangular pattern. In some embodiments, the plurality of first through holes 112 can also be arranged in an array according to the shape of the workpiece. For example, when the workpiece is circular, the plurality of first through holes 112 can be arranged in a circular pattern; when the workpiece is rectangular, the plurality of first through holes 112 can be arranged in a rectangular pattern.

[0055] In some embodiments, the plurality of first through holes 112 of the aforementioned suction plate 10 may be arranged in an array according to the shape of the aforementioned electrode. Specifically, when the aforementioned electrode is rectangular, the plurality of first through holes 112 may also be arranged in a rectangular shape.

[0056] In some embodiments, the electrode sheet may have tabs on its side. The electrode sheet may be rectangular, and the tabs may also be rectangular. In this case, the suction plate 10 may form a second protrusion in a second direction or a third direction. The lower side of the second protrusion may be a second plane, which may be flush with the first plane 111. The first plane 111 is provided with through holes 112 arranged in a matrix, and the second plane may also be provided with second through holes arranged in a matrix. When the suction plate extracts the electrode sheet, the first plane may face the main body of the electrode sheet, and the second plane may face the tabs of the electrode sheet. The through holes 112 on the first plane can suck up the main body of the electrode sheet, and the second through holes on the second plane can suck up the tabs of the electrode sheet.

[0057] By setting the position of the through hole as described above, the electrode can be subjected to uniform force, thus avoiding bending of the electrode due to uneven force.

[0058] Figure 2a An exemplary structural diagram of a suction nozzle according to some embodiments of this disclosure is shown; Figure 2bAn exemplary structural diagram of the suction nozzle outside the through hole is shown, representing some embodiments of this disclosure; Figure 2c An exemplary structural diagram of the suction nozzle inside the through hole is shown, representing some embodiments of this disclosure; Figure 2d An exemplary structural diagram of the suction nozzle inside a through-hole is shown, representing some other embodiments of this disclosure. (See diagram for reference.) Figure 2a , Figure 2b , Figure 2c as well as Figure 2d As shown, in some embodiments, the suction plate 10 includes an adsorption channel, one end of which is provided with a suction nozzle 13, the suction nozzle 13 connecting the external space of the suction plate 10 with the internal space of the adsorption channel; the suction nozzle 13 is disposed inside the through hole 112; and / or, the suction nozzle 13 is disposed outside the through hole 112, and the suction nozzle 13 is located on the side of the second side 12 of the suction plate away from the first side 12 of the suction plate.

[0059] In some embodiments, the aforementioned suction plate 10 may further include an adsorption channel, one end of which may be provided with a suction nozzle 13. In some embodiments, the first end 131 of the aforementioned suction nozzle may be funnel-shaped and may be disposed inside the aforementioned through hole 112. It should be understood that the funnel-shaped opening of the first end 131 of the aforementioned suction nozzle may face a first direction and be disposed downward, and the second end 132 of the aforementioned suction nozzle may be connected to the adsorption channel. The aforementioned adsorption channel may be configured as a pipe, and the aforementioned pipe may be connected to an adsorption component (e.g., a vacuum adsorption component or an electromagnetic adsorption component). Specifically, the aforementioned pipe may be connected to a vacuum generator or a negative pressure device, which may provide suction to the aforementioned suction nozzle 13.

[0060] In some embodiments, the first end 131 of the suction nozzle may be disposed inside the aforementioned through hole 112. Specifically, the end of the first end 131 of the suction nozzle may be flush with the first plane 111 of the aforementioned suction plate 10 (see...). Figure 2b The aforementioned first end 131 of the suction nozzle can also be disposed within the through hole 112, and the end of the first end 131 of the suction nozzle does not extend beyond the first plane 111 of the suction plate 10 (see reference). Figure 2c ).

[0061] In some embodiments, see Figure 2dThe aforementioned suction nozzle 13 can also be disposed outside the through hole 112, and the first end 131 of the suction nozzle 13 can be fitted against the second side surface 12 of the suction plate. It is understood that, viewed from top to bottom in the first direction, the diameter of the first end 131 of the suction nozzle can gradually increase, reaching its maximum diameter at the lowest point of the first end 131. This maximum diameter can be larger than the diameter of the through hole 112. When the suction nozzle 13 is disposed on the second side surface 12 of the suction plate, the centerline of the suction nozzle 13 can coincide with the centerline of the through hole 112. The end of the suction nozzle 13 can fit against the periphery of the through hole 112, allowing the entire through hole 112 to be located within the flared opening of the first end 131 of the suction nozzle.

[0062] Figure 3a An exemplary structural diagram of the suction plate 10 according to some embodiments of this disclosure is shown; Figure 3b An exemplary structural diagram of the suction plate 10 after removing the pressure plate, according to some embodiments of this disclosure, is shown. Figure 3a and Figure 3b As shown, the suction plate 10 includes a suction plate base 14 and a suction plate pressing block 15 detachably connected to the suction plate base 14. Along the first direction, the side of the suction plate pressing block 15 opposite to the suction plate base 14 forms the first side surface of the suction plate, and the side of the suction plate base 14 opposite to the suction plate pressing block 15 forms the second side surface 12 of the suction plate. The through hole 112 penetrates the suction plate base 14 and the suction plate pressing block 15.

[0063] In some embodiments, the suction plate base 14 includes a base body and a base protrusion, and the suction plate pressing block 15 includes a pressing block body and a pressing block protrusion. The base body and the pressing block body correspond to and are provided with an array of through holes for the electrode body, and the base protrusion and the pressing block protrusion correspond to and are provided with an array of through holes for the electrode tab. In some embodiments, the suction plate 10 in the aforementioned first direction is polygonal in shape.

[0064] In some embodiments, the aforementioned suction plate 10 may include a suction plate body and a protrusion formed in the third direction of the suction plate body. The aforementioned suction plate body may be opposite to the aforementioned electrode sheet, and the aforementioned protrusion may be opposite to the aforementioned electrode tab.

[0065] In some embodiments, when the aforementioned suction plate 10 picks up an electrode sheet containing an electrode tab, the aforementioned electrode tab may be a protrusion along the side of the electrode sheet in the third direction. The aforementioned suction plate 10 may include a suction plate base 14 and a suction plate pressing block 15 detachably connected to the suction plate base 14. Specifically, the aforementioned suction plate base 14 may include a base body portion and a base protrusion formed in the third direction of the base body portion, and the aforementioned suction plate pressing block 15 may include a pressing block body portion and an electrode tab through hole formed in the pressing block body portion in the third direction.

[0066] The side of the aforementioned suction plate base 14 opposite to the aforementioned suction plate pressing block 15 can form the first side surface of the aforementioned suction plate, and the side of the aforementioned suction plate base 14 opposite to the aforementioned suction plate pressing block 15 can form the second side surface 12 of the suction plate. In some embodiments, the aforementioned first through hole 1121 can penetrate the aforementioned base body and the aforementioned pressing block body, and the aforementioned second through hole 1122 can penetrate the aforementioned base protrusion and the pressing block protrusion.

[0067] In some embodiments, the first side of the aforementioned suction plate base 14 can be the side of the suction plate base 14 facing away from the aforementioned suction plate pressing block 15, and the second side of the aforementioned suction plate base 14 can be the side of the suction plate base 14 facing the aforementioned suction plate pressing block 15. The first side of the aforementioned suction plate pressing block 15 can be the side facing the suction plate base 14, and the second side of the aforementioned suction plate pressing block 15 can be the side facing away from the aforementioned suction plate base 14. Specifically, the first side of the aforementioned suction plate base 14 is provided with at least one first through hole 1121 and at least one second through hole 1122 parallel to the first through hole 1121, and the second side of the suction plate base 14 is detachably connected to the first side of the suction plate pressing block 15.

[0068] In some embodiments, the suction plate block 15 may include a first flat plate 151, a third through hole 152, and a fourth through hole 153 parallel to the third through hole 152; the third through hole 152 is disposed opposite to the first through hole 1121, and the fourth through hole 153 is disposed opposite to the second through hole 1122.

[0069] The aforementioned third through hole 152 can be provided on the main body of the pressure block, and the aforementioned fourth through hole 153 can be provided on the protrusion of the pressure block. In some embodiments, the center line of the aforementioned first through hole 1121 can coincide with the center line of the aforementioned third through hole 152, and the center line of the aforementioned second through hole 1122 can coincide with the center line of the aforementioned fourth through hole 153.

[0070] In some embodiments, the aforementioned suction plate 10 can be connected to the suction nozzle 13. Specifically, the aforementioned suction nozzle 13 can penetrate through the aforementioned first through hole 1121 and second through hole 1122. The aforementioned flared first end 131 of the suction nozzle can be disposed below the aforementioned first through hole 1121 and second through hole 1122, the aforementioned suction plate pressing block 15 can cover the aforementioned first end 131 of the suction nozzle, and the thickness of the aforementioned suction plate pressing block 15 can be greater than the distance by which the aforementioned first end 131 of the suction nozzle extends beyond the aforementioned first plane 111, so that the aforementioned suction ports are located on the same plane. In some embodiments, the shape of the aforementioned suction plate 10 in the first direction can be polygonal, such as rectangular, pentagonal, or hexagonal.

[0071] In some embodiments, the size of the aforementioned suction plate 10 may be smaller than the size of the aforementioned electrode, so that the edge of the aforementioned electrode may not be obstructed in the first direction, thereby facilitating detection by the detection component.

[0072] By setting the aforementioned suction plate and pressure block, when suctioning the electrode sheet, it can be ensured that all parts of the electrode sheet are on the same horizontal plane, which can reduce the appearance defects such as arching or suction nozzle marks on the electrode sheet.

[0073] Figure 4 A perspective view of an apparatus for extracting a workpiece, according to other embodiments of this disclosure, is shown. (See also...) Figure 4 As shown, the other end of the first conveying component 20 includes a first protrusion, and the sliding part includes a groove 311 extending along the second direction. The first protrusion slides in conjunction with the groove 311 so that the first conveying component 20 slides along the second direction.

[0074] In some embodiments, the first conveying component 20 includes a fixing block 222 and a transmission rod 211 extending along the first direction; the transmission rod 211 is threadedly connected to the second side surface 12 of the suction plate 10 along the first direction towards the first side surface 10, so as to realize the first conveying component 20 and the second side surface 12 of the suction plate detachably connected, and the transmission rod 211 is movable in the first direction to drive the suction plate 10 to move in the first direction; the transmission rod 211 is connected to the fixing block 222 along the second side away from the suction plate 10 along the first direction, and the fixing block 222 is provided with the first protrusion; the transmission rod 211 is movably connected to the slide groove 311 through the fixing block 222 to drive the suction plate 10 to move in the second direction.

[0075] In some embodiments, the slide 311 includes a first bottom surface 3111 parallel to the second direction, a second side surface 3112 and a third side surface 3113 forming an acute angle or a right angle with the first bottom surface 3111, and the second side surface 3112 and the third side surface 3113 are disposed opposite each other along a third third direction, the third third direction being parallel to the first plane 111 and perpendicular to the first direction and the second direction respectively; the first protrusion includes a fourth top surface parallel to the first bottom surface 3111, a fifth side surface parallel to the second side surface 3112 and a sixth side surface parallel to the third side surface 3113.

[0076] In some embodiments, the first protrusion engages with the groove 311 and is able to move in a second direction.

[0077] In some embodiments, the aforementioned first conveying component 20 may be a cylinder, the aforementioned transmission rod 211 may be the piston rod of the cylinder, the aforementioned fixing block 222 may be the fixing part of the cylinder, and the first side of the aforementioned transmission rod 211 may be threadedly connected to the second side of the suction plate 10. The piston rod of the aforementioned cylinder may move in a first direction, thereby driving the aforementioned suction plate 10 to move in the first direction.

[0078] In some embodiments, the aforementioned transmission rod may have a channel inside, one end of which may be connected to the aforementioned through hole 112, and the other end of which may be connected to the aforementioned vacuum generator. The aforementioned vacuum generator can create negative pressure on the aforementioned suction port through the aforementioned channel, which can be used to adsorb the suction plate. In some embodiments, the suction plate can also be connected to an external vacuum adsorption device, which can avoid setting a channel inside the transmission rod and reduce the processing difficulty of the aforementioned transmission rod.

[0079] In some embodiments, the aforementioned apparatus may further include a material frame 50, which can be used to carry the electrode sheets to be stacked. The aforementioned suction plate can adsorb the aforementioned electrode sheets from the aforementioned material frame to achieve the stacking process of the electrode sheets.

[0080] In some embodiments, the aforementioned groove 311 may include a first bottom surface 3111, a second side surface 3112, and a third side surface 3113. In some embodiments, the aforementioned first bottom surface 3111 may be parallel to a second direction; preferably, the aforementioned first bottom surface 3111 may be perpendicular to a first direction, and the included angle between the aforementioned second side surface 3112 and the aforementioned first bottom surface 3111 may be an acute angle.

[0081] It is understood that the aforementioned second side surface 3112 may be located below the aforementioned first bottom surface 3111. In some embodiments, the angle between the aforementioned third side surface 3113, which is opposite to the second side surface 3112, and the first bottom surface 3111 may also be an acute angle, and the acute angle between the aforementioned second side surface 3112 and the first bottom surface 3111 may be equal to the acute angle between the third side surface 3113 and the first bottom surface 3111.

[0082] In some embodiments, the aforementioned second transmission block 30 may include a first axis of symmetry parallel to the second direction, and the aforementioned slide groove 311 may be disposed at the center position of the aforementioned second transmission block 30. The included angle between the aforementioned second side surface 3112 and the aforementioned first bottom surface 3111 may be an acute angle, and the aforementioned third side surface 3113 may be symmetrical with respect to the aforementioned second side surface 3112 relative to the aforementioned first axis of symmetry.

[0083] In some embodiments, the aforementioned fixing block 222 may be provided with a first protrusion, which may include a fourth top surface, a fifth side surface, and a sixth side surface. In some embodiments, the aforementioned fifth and sixth side surfaces may be located below the aforementioned fourth top surface, the aforementioned fourth top surface may be parallel to the aforementioned first bottom surface 3111, the aforementioned fifth side surface may be parallel to the aforementioned second side surface 3112, and the aforementioned sixth side surface may be parallel to the aforementioned third side surface 3113.

[0084] In some embodiments, when the angles between the aforementioned second side surface 3112 and the aforementioned third side surface 3113 and the first bottom surface 3111 are both acute angles, the angles between the aforementioned fifth side surface and the aforementioned sixth side surface and the aforementioned fourth top surface can also be acute angles. The aforementioned first protrusion can be disposed within the aforementioned groove 311, the aforementioned fourth top surface can cooperate with the aforementioned first bottom surface 3111, the aforementioned fifth side surface can cooperate with the aforementioned second side surface 3112, the aforementioned sixth side surface can cooperate with the aforementioned third side surface 3113, and the aforementioned first protrusion can move along the aforementioned groove 311 in the second direction.

[0085] In some embodiments, the angle between the first bottom surface 3111 and the second side surface 3112 can be a right angle, and the angle between the first bottom surface 3111 and the third side surface 3113 can also be a right angle. It is understood that when the first bottom surface 3111 is perpendicular to the first direction, the second side surface 3112 and the third side surface 3113 can be perpendicular to the third direction. The second transmission block 30 may include a second axis of symmetry parallel to the second direction, the slide groove 311 may be located at the center of the second transmission block 30, the angle between the second side surface 3112 and the first bottom surface 3111 can be a right angle, and the second side surface 3112 and the third side surface 3113 can be symmetrical about the second axis of symmetry.

[0086] In some embodiments, when the angles between the aforementioned second side surface 3112 and the aforementioned third side surface 3113 and the first bottom surface 3111 are both right angles, the angles between the aforementioned fifth side surface and the aforementioned sixth side surface and the aforementioned fourth top surface can also be right angles. The aforementioned first protrusion can be disposed within the aforementioned groove 311, the aforementioned fourth top surface can cooperate with the aforementioned first bottom surface 3111, the aforementioned fifth side surface can cooperate with the aforementioned second side surface 3112, the aforementioned sixth side surface can cooperate with the aforementioned third side surface 3113, and the aforementioned first protrusion can move along the aforementioned groove 311 in the second direction. It should be understood that, in this case, the aforementioned second side surface 3112 and the aforementioned third side surface 3113 can be provided with limiting blocks parallel to the first bottom surface 3111, which can be used to restrict the movement of the aforementioned first protrusion in the first direction.

[0087] By configuring the aforementioned first conveying component and the aforementioned second transmission block, the aforementioned suction plate can move in both the first and second directions, thereby realizing the transfer function of the workpiece. Simultaneously, the configuration of the first conveying component and the aforementioned second transmission block also ensures high precision, allowing the workpiece to be accurately transferred to the inspection platform. This avoids the phenomenon of workpieces exceeding the preset range due to inaccurate positioning, thus preventing misjudgment and rejection.

[0088] In some embodiments, the stacking device further includes a detection platform 41 and a detection component. The detection platform 41 is disposed along the first direction toward the first side of the suction plate, and the detection component is disposed on the detection platform 41. The detection platform 41 is used to carry the electrode to be stacked and cooperates with the detection component to detect the electrode to be stacked.

[0089] In some embodiments, the aforementioned detection component may include a detection platform 41 disposed below the aforementioned suction plate 10. The detection platform 41 may be parallel to the aforementioned suction plate 10, and the workpiece adsorbed on the aforementioned suction plate 10 may be placed on the detection platform 41. The aforementioned detection component may include a detection camera, which may be a CCD camera. The aforementioned CCD camera can provide high-quality images, and compared with some other types of image sensors, the CCD camera can produce relatively low noise at low sensitivity settings. The accuracy of detection can be improved by using a CCD camera. In some embodiments, the aforementioned CCD camera may be disposed on the diagonal side of the electrode on the detection platform 41, and the aforementioned electrode may be detected based on the detection light 412 on the diagonal side of the electrode. The detection results of the aforementioned detection component may be fed back to the detection platform 41 or the stacking device, thereby further screening and adjusting the electrode.

[0090] In some embodiments, the aforementioned detection platform 41 may be provided with a vacuum through-hole, which can be connected to a vacuum pipe 411 to provide adsorption force for the workpiece placed on the detection platform, thereby preventing the workpiece from shifting. The aforementioned detection body may include a detection camera, which can take pictures of the edges (e.g., the diagonal of the workpiece) of the workpiece placed on the aforementioned detection platform 41, thereby positioning the workpiece. Furthermore, after the workpiece is positioned, it can be adjusted by a correction device. It is understood that when the workpiece is an electrode, the aforementioned parameters can be the positional relationship of the electrode and whether the electrode has any appearance defects such as powder shedding or cracking.

[0091] By configuring the aforementioned detection components, the position of the electrode sheets after transport can be determined, thus providing a positioning basis for subsequent correction. Furthermore, these detection components can detect whether the electrode sheets have surface defects such as powder shedding or cracking, allowing for the selection of substandard electrode sheets.

[0092] In some embodiments, this solution discloses a stacking device, which may include a material frame 50 and a stacking apparatus as described above. The material frame 50 is used to hold the electrode sheets to be stacked, and the stacking apparatus is used to extract the electrode sheets to be stacked from the material frame 50 and stack them to form a stacked core. By using the aforementioned stacking device, the occurrence of appearance defects such as arching or nozzle marks on the electrode sheets can be reduced. In some embodiments, the suction plate of the aforementioned stacking apparatus can adsorb the electrode sheets from the material frame 50 to achieve the stacking process.

[0093] While numerous embodiments of this disclosure have been shown and described herein, it will be apparent to those skilled in the art that such embodiments are provided by way of example only. Many modifications, alterations, and alternatives will occur to those skilled in the art without departing from the spirit and intent of this disclosure. It should be understood that various alternatives to the embodiments of this disclosure described herein may be employed in the practice of this disclosure. The appended claims are intended to define the scope of this disclosure and therefore cover equivalents or alternatives within the scope of these claims.

Claims

1. A stacking device for extracting electrodes to be stacked, characterized in that, The stacking device includes a suction plate (10), a first conveying component (20), and a second transmission block (30); The suction plate (10) includes a first side surface and a second side surface (12) of the suction plate arranged opposite to each other along a first direction; the first side surface of the suction plate is configured as a first plane (111), and at least one through hole (112) is provided on the first plane (111); the second side surface (12) of the suction plate is connected to the first conveying component (20); One end of the first conveying component (20) is detachably connected to the second side (12) of the suction plate and can drive the suction plate (10) to move in the first direction; the other end of the first conveying component (20) is movably connected to the second transmission block (30); The second transmission block (30) has a sliding part on the side facing the first transmission component (20). The sliding part extends in the second direction. The other end of the first transmission component (20) is movably connected to the second transmission block (30) through the sliding part and moves along the second direction. The first direction is perpendicular to the first plane (111), and the second direction is parallel to the first plane (111) and perpendicular to the first direction.

2. The stacking device according to claim 1, characterized in that, The multiple through holes (112) are arranged in an array, and a portion of the through holes (112) are configured as through holes in the main body of the electrode sheet, while the other portion of the through holes (112) are configured as through holes in the tab portion, corresponding to the main body and tab portion of the electrode sheet to be stacked, respectively.

3. The apparatus according to claim 1, characterized in that, The suction plate (10) includes an adsorption channel, and a suction nozzle (13) is provided at one end of the adsorption channel. The suction nozzle (13) connects the external space of the suction plate (10) with the internal space of the adsorption channel; the suction nozzle (13) is disposed inside the through hole (112); and / or, The suction nozzle (13) is disposed outside the through hole (112), and the suction nozzle (13) is located on the side of the second side (12) of the suction plate away from the first side of the suction plate.

4. The stacking apparatus according to claim 2, characterized in that, The suction plate (10) includes a suction plate base (14) and a suction plate pressing block (15) detachably connected to the suction plate base (14). Along the first direction, the side of the suction plate pressing block (15) away from the suction plate base (14) forms the first side surface of the suction plate, and the side of the suction plate base (14) away from the suction plate pressing block (15) forms the second side surface (12) of the suction plate. The through hole (112) penetrates the suction plate base (14) and the suction plate pressing block (15).

5. The stacking apparatus according to claim 4, characterized in that, The suction plate base (14) includes a base body and a base protrusion. The suction plate pressing block (15) includes a pressing block body and a pressing block protrusion. The base body and the pressing block body are respectively provided with the through holes of the electrode body. The base protrusion and the pressing block protrusion are respectively provided with the through holes of the electrode ear.

6. The stacking apparatus according to claim 1, characterized in that, The other end of the first conveying component (20) includes a first protrusion, and the sliding part includes a slide groove (311) extending along the second direction. The first protrusion slides in conjunction with the slide groove (311) so that the first conveying component (20) slides along the second direction.

7. The stacking apparatus according to claim 6, characterized in that, The first conveying component (20) includes a fixing block (222) and a transmission rod (211) extending along the first direction; The transmission rod (211) is threadedly connected to the second side (12) of the suction plate (10) along the first direction, so as to realize the first transmission component (20) and the second side (12) of the suction plate detachably connected, and the transmission rod (211) can move in the first direction to drive the suction plate (10) to move in the first direction; The transmission rod (211) is connected to the fixing block (222) on the second side away from the suction plate (10) along the first direction, and the fixing block (222) is provided with the first protrusion. The transmission rod (211) is movably connected to the slide groove (311) through the fixing block (222) so as to drive the suction plate (10) to move in the second direction.

8. The stacking apparatus according to claim 6, characterized in that, The slide (311) includes a first bottom surface (3111) parallel to the second direction, a second side surface (3112) and a third side surface (3113) forming an acute angle or a right angle with the first bottom surface (3111), and the second side surface (3112) and the third side surface (3113) are arranged opposite to each other along a third direction, which is parallel to the first plane (111) and perpendicular to the first direction and the second direction, respectively; The first protrusion includes a fourth top surface parallel to the first bottom surface (3111), a fifth side surface parallel to the second side surface (3112), and a sixth side surface parallel to the third side surface (3113).

9. The stacking apparatus according to claim 1, characterized in that, The stacking device further includes a detection platform (41) and a detection component. The detection platform (41) is disposed along the first direction toward the first side of the suction plate. The detection component is disposed on the detection platform (41). The detection platform (41) is used to carry the electrode to be stacked and cooperates with the detection component to detect the electrode to be stacked.

10. A stacking device, characterized in that, The device includes a material frame (50) and a stacking device according to any one of claims 1-9, wherein the material frame (50) is used to hold the electrode to be stacked, and the stacking device is used to extract the electrode to be stacked from the material frame (50) and stack them to form a core stack.

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