A negative electrode film making machine

Abstract

The present invention relates to a negative electrode tableting machine, comprising a lithium strip supply mechanism, a tab forming mechanism, a tape unwinding mechanism, a laminating mechanism, a cutting mechanism, and a blanking mechanism, which are arranged in order from raw materials to finished products; the tab forming mechanism and the tape unwinding mechanism are arranged on a movable base; the displacement direction of the tab forming mechanism and the tape unwinding mechanism on the movable base is parallel to the moving direction of the lithium strip; a movable base slide rail is provided on the movable base, and the tab forming mechanism and the tape unwinding mechanism move together on the movable base slide rail; the tab forming mechanism is driven by the second slide adjusting screw; the tape unwinding mechanism is driven by the first slide driving motor; the activities of the two do not affect each other; the setting direction of the tab forming mechanism and the tape unwinding mechanism is perpendicular to the unwinding direction of the lithium strip. The above-mentioned negative electrode tableting machine has the advantages of improving production rhythm and improving production efficiency due to the use of the tab forming mechanism and the tape unwinding mechanism that can move with the lithium strip.

Description

Technical Field

[0001] The present invention relates to automated production equipment for lithium-manganese batteries, in particular to a negative electrode film making machine. Background Art

[0002] Lithium batteries, particularly prismatic soft-pack lithium batteries, are formed by folding the positive and negative electrodes, which are stacked with separators, and then gluing them together. Due to manufacturing limitations, current negative electrode sheeting machines are structurally similar, with only minor differences in the actuator components. Consequently, the production cycle of existing equipment remains largely the same. To improve production efficiency, a new negative electrode sheeting machine was proposed. Summary of the Invention

[0003] In view of the above situation, it is necessary to provide a negative electrode tableting machine that solves at least one of the above problems.

[0004] A negative electrode tableting machine includes a lithium strip supply mechanism, a tab forming mechanism, a tape unwinding mechanism, a laminating mechanism, a cutting mechanism, and a blanking mechanism, which are arranged in order from raw materials to finished products;

[0005] The tab forming mechanism and the tape unwinding mechanism are arranged on a movable base;

[0006] The displacement directions of the tab forming mechanism and the tape unwinding mechanism on the movable base are parallel to the moving direction of the lithium tape;

[0007] The movable base is provided with a movable base slide rail, and the tab forming mechanism and the tape unwinding mechanism move together on the movable base slide rail;

[0008] The tab forming mechanism is driven by the second slide adjusting screw; the tape unwinding mechanism is driven by the first slide driving motor; the activities of the two do not affect each other;

[0009] The arrangement direction of the tab forming mechanism and the tape unwinding mechanism is perpendicular to the unwinding direction of the lithium tape.

[0010] As a further embodiment of the present invention, the lithium ribbon supply mechanism includes a lithium ribbon supply mechanism base, a lithium ribbon supply mechanism mounting plate is vertically arranged on the lithium ribbon supply mechanism base via a slide rail slider, and a movable direction of the lithium ribbon supply mechanism mounting plate on the lithium ribbon supply mechanism base is perpendicular to the unwinding direction of the lithium ribbon;

[0011] The lithium tape material coil is arranged on the lithium tape feeding mechanism mounting plate, and the lithium tape material coil is actively fed by the motor;

[0012] The lithium belt passes through a floating roller, a tension roller, a deviation-correcting roller and a brush in sequence.

[0013] As a further solution of the present invention: the tension roller is arranged on the lithium strip feeding mechanism mounting plate via a slide rail slider, and its movable direction is vertical; the tension roller is connected to the piston of the tension roller driving cylinder;

[0014] On the lithium strip supply mechanism mounting plate, a correction auxiliary roller is provided corresponding to the correction roller, and the correction auxiliary roller is fixed. The correction roller is fixed to the lithium strip supply mechanism mounting plate through a bracket, and the correction roller is movably provided on the bracket. The correction roller uses its own weight to press on the correction auxiliary roller.

[0015] As a further solution of the present invention: the tab forming mechanism includes a tab unwinding device, a tab pressing device, a tab feeding device, a tab cutting device, a tab clamping device and a tab riveting device which are arranged in sequence;

[0016] The tab unwinding device includes a vertically arranged tab unwinding device mounting plate, and the tab material roll is arranged on the top of the tab unwinding device mounting plate;

[0017] The tab unwinding device further includes a first feeding wheel and a second feeding wheel, wherein the first feeding wheel and the second feeding wheel are arranged below the tab coil, and the tab unwinding tensioning wheel is arranged on one side of the first feeding wheel;

[0018] The positions of the first feeding wheel and the second feeding wheel are distributed vertically;

[0019] The tab unwinding tensioning wheel moves horizontally based on the tab unwinding tensioning spring that is arranged horizontally;

[0020] The tab unwinding device further includes a tab waste roll, which is also arranged on the tab unwinding device mounting plate;

[0021] The axis height of the tab unwinding tensioner is exactly the same as the center height between the first feeding wheel and the second feeding wheel;

[0022] The distance between the first feeding wheel and the second feeding wheel is the same as the diameter of the tab unwinding and tensioning wheel;

[0023] The tab pressing device includes a vertically arranged tab pressing device mounting plate, and the tab pressing device driving cylinder is arranged at the top of the tab pressing device mounting plate, with its piston pointing vertically downward;

[0024] A tab pressing base is provided on the tab pressing device mounting plate and below the tab pressing device driving cylinder;

[0025] A tab pressing plate is provided on the piston of the tab pressing device driving cylinder. When the piston is extended, the tab pressing plate is in close contact with the tab pressing base, and the tab material strip is pressed between the two.

[0026] A first tab straightening roller and a second tab straightening roller are provided at the entrances of the tab pressing plate and the tab pressing base.

[0027] As a further solution of the present invention: the tape unwinding mechanism includes a tape unwinding mechanism bottom plate, the tape unwinding mechanism bottom plate is arranged on the movable base, and can move on the movable base along the length direction of the lithium tape;

[0028] A tape unwinding mechanism sub-bottom plate is provided on the bottom plate of the tape unwinding mechanism through a slider guide rail, and a tape unwinding mechanism sub-bottom plate driving motor drives the tape unwinding mechanism sub-bottom plate to move on the tape unwinding mechanism bottom plate along the width direction of the lithium tape;

[0029] A vertical tape unwinding mechanism mounting plate is provided on the secondary bottom plate of the tape unwinding mechanism; a tape material roll, a tape transfer device, a tape pressing device and a tape hook are provided in sequence from upstream to downstream according to the conveying direction of the tape in the tape unwinding mechanism;

[0030] The tape transfer device includes a horizontally arranged tape unwinding push plate drive cylinder and a tape unwinding swing claw drive cylinder, the output ends of which are directed toward one side of the tape pressing device; wherein the tape unwinding swing claw drive cylinder is located below the tape unwinding push plate drive cylinder;

[0031] The piston of the tape unwinding push plate driving cylinder is connected to the tape unwinding push plate, the tape unwinding swing claw driving cylinder and the tape unwinding swing claw, the piston of the tape unwinding swing claw driving cylinder is connected to the driving end of the tape unwinding swing claw, and the swing end of the tape unwinding swing claw is located just below the tape unwinding push plate;

[0032] When the piston of the tape unwinding swing claw driving cylinder extends, it pushes the driving end of the tape unwinding swing claw, and at this time the swing end of the tape unwinding swing claw is away from the tape unwinding push plate;

[0033] In the extending direction of the tape unwinding push plate, a tape laminating drive cylinder is provided, and a tape cutter capable of moving up and down is provided between the tape laminating drive cylinder and the tape unwinding push plate;

[0034] The lithium tape passes directly under the tape laminating drive cylinder, and a tape hook assembly is provided on the opposite side of the tape unwinding push plate with the lithium tape as the axis;

[0035] The tape hook assembly includes a tape hook claw and a tape hook claw horizontal displacement driving cylinder and a tape hook claw vertical displacement driving cylinder for driving the tape hook claw to move.

[0036] As a further solution of the present invention: the mobile base further includes a first slide drive motor, which is arranged on the mobile base mounting frame and is used to drive the first slide of the mobile base;

[0037] The first slide is used to support the tape unwinding mechanism;

[0038] In addition, it also includes the second slide of the mobile base and the second slide adjusting screw, and the tab forming mechanism is installed on the second slide of the mobile base.

[0039] As a further solution of the present invention: the laminating mechanism includes a laminating mechanism bottom plate, on which two laminating mechanism rollers and a laminating mechanism pressure roller are arranged;

[0040] The two laminating mechanism rollers and the laminating mechanism pressure roller are distributed in a herringbone shape, wherein the laminating mechanism pressure roller is located at the top;

[0041] The lower edge of the laminating mechanism pressure roller is lower than the upper edge of the laminating mechanism support roller.

[0042] As a further embodiment of the present invention, the cutting mechanism includes a cutting mechanism mounting frame, on which a material transfer clamp opening and closing driving cylinder is provided via a slide rail, and a cutting mechanism material transfer clamp is provided on a movable end of the material transfer clamp opening and closing driving cylinder for clamping the lithium strip;

[0043] The moving direction of the material transfer clamp opening and closing driving cylinder on the cutting mechanism mounting frame is consistent with the length direction of the lithium strip, and is driven by the material transfer clamp displacement driving motor.

[0044] As a further solution of the present invention: the cutting mechanism also includes a cutting assembly consisting of an upper cutter driving cylinder, an upper cutter of the cutting mechanism, a lower cutter driving cylinder of the cutting mechanism, and a lower cutter of the cutting mechanism, for cutting the lithium strip.

[0045] As a further solution of the present invention: the blanking mechanism includes a blanking mechanism pulling clamp, the position of the blanking mechanism pulling clamp is opposite to the position of the cutting mechanism moving clamp, and the blanking mechanism moving platform mounting frame is located between the blanking mechanism pulling clamp and the cutting mechanism moving clamp;

[0046] The blanking mechanism transfer platform mounting frame moves horizontally in a direction perpendicular to the length of the lithium strip, and a blanking mechanism transfer platform is provided on the blanking mechanism transfer platform mounting frame for receiving the lithium strip cut by the cutting mechanism;

[0047] At the front and rear positions of the moving direction of the unloading mechanism transfer platform, a unloading mechanism turning device is respectively provided for sucking the lithium strip on the unloading mechanism transfer platform and turning it over.

[0048] The above-mentioned negative electrode film making machine has the advantages of improving production rhythm and improving production efficiency due to the use of a tab forming mechanism and a tape unwinding mechanism that can move with the lithium tape. BRIEF DESCRIPTION OF THE DRAWINGS

[0049] Figure 1 Schematic diagram of the structure of a negative electrode tableting machine according to an embodiment of the present invention;

[0050] Figure 2 2 is a schematic structural diagram of a lithium ribbon supply mechanism according to an embodiment of the present invention;

[0051] Figure 3 1 is a schematic structural diagram of a tab forming mechanism according to an embodiment of the present invention;

[0052] Figure 4 2. It is a schematic structural diagram of a tab unwinding device according to an embodiment of the present invention;

[0053] Figure 5 2. It is a schematic structural diagram of a tab unwinding device according to an embodiment of the present invention;

[0054] Figure 6 2 is a schematic structural diagram of a tab feeding device according to an embodiment of the present invention;

[0055] Figure 7 2 is a schematic structural diagram of a tab cutting device according to an embodiment of the present invention;

[0056] Figure 8 2 is a schematic structural diagram of a tab clamping device according to an embodiment of the present invention;

[0057] Figure 9 2. It is a schematic structural diagram of a tab riveting device according to an embodiment of the present invention;

[0058] Figure 10 2 is a schematic structural diagram of a tape unwinding mechanism according to an embodiment of the present invention;

[0059] Figure 11 is a structural schematic diagram of a mobile base according to an embodiment of the present invention;

[0060] Figure 12 is a structural schematic diagram of a laminating mechanism according to an embodiment of the present invention;

[0061] Figure 13 is a structural diagram of a cutting mechanism according to an embodiment of the present invention from a first viewing angle;

[0062] Figure 14 is a second viewing angle of a structural schematic diagram of the cutting mechanism of an embodiment of the present invention;

[0063] Figure 15 It is a structural schematic diagram of the blanking mechanism of an embodiment of the present invention.

[0064] In the picture:

[0065] Lithium ribbon supply mechanism 100;

[0066] Lithium ribbon supply mechanism base 101; lithium ribbon supply mechanism mounting plate 102; lithium ribbon material roll 103; tension roller driving cylinder 104; tension roller 105; deviation correction auxiliary roller 106; deviation correction roller 107; brush bottom plate 108; brush 109; displacement sensor 110; mounting plate displacement driving motor 111.

[0067] Tab forming mechanism 200;

[0068] Tab unwinding device 201;

[0069] Tab unwinding device mounting plate 2011; tab material roll 2012; tab unwinding first feeding wheel 2013; tab unwinding tensioning wheel 2014; tab unwinding tensioning spring 2015; tab unwinding second feeding wheel 2016; second unwinding first guide wheel 2017; tab unwinding second guide wheel 2018; tab waste roll 2019;

[0070] Tab pressing device 202;

[0071] Tab pressing device mounting plate 2021; tab pressing device driving cylinder 2022; tab pressing base 2023; pressing base arc portion 2023A; tab pressing plate 2024; first tab straightening roller 2025; second tab straightening roller 2026;

[0072] pole feeding device 203;

[0073] Tab feeding device base 2031; tab feeding drive motor 2032; tab feeding slider 2033; tab feeding vertical plate 2034; tab feeding clamp 2035; tab feeding clamp block drive cylinder 2036; tab feeding clamp block 2037;

[0074] Tab cutting device 204;

[0075] Tab cutting device mounting frame 2041; tab cutting tool drive cylinder 2042; tab cutting movable knife 2043; tab cutting fixed knife 2044; tab cutting device stopper 2045; tab correction pressing block drive cylinder 2046; tab correction pressing block 2047; tab correction support block drive cylinder 2048; tab correction finger cylinder 2049; tab correction support block 2049A;

[0076] Tab clamping device 205;

[0077] Tab clamping device bottom plate 2051; tab clamping device drive motor 2052; tab clamping device slider 2053; tab clamping device mounting plate 2054; tab clamping jaw drive cylinder 2055; tab clamping jaw 2056;

[0078] Tab riveting device 206;

[0079] Tab riveting mounting frame 2061 ; tab riveting driving cylinder 2062 ; tab riveting head 2063 ; tab riveting seat 2064 ; first tab riveting roller 2065 ; second tab riveting roller 2066 .

[0080] Adhesive tape unwinding mechanism 300;

[0081] The adhesive tape unwinding mechanism comprises a bottom plate 301, a sub-bottom plate driving motor 302 for the adhesive tape unwinding mechanism, a sub-bottom plate 303 for the adhesive tape unwinding mechanism, a mounting plate 304 for the adhesive tape unwinding mechanism, a tape roll 305, a driving cylinder 306 for the adhesive tape unwinding push plate, a driving cylinder 307 for the adhesive tape unwinding swinging claw, a tape unwinding push plate 308, a driving cylinder 309 for the adhesive tape unwinding swinging claw, a tape cutter 310, a tape hook 311, a driving cylinder 312 for the horizontal displacement of the adhesive tape hook, a driving cylinder 313 for the vertical displacement of the adhesive tape hook, and a driving cylinder 314 for the adhesive tape laminating.

[0082] Mobile base 400;

[0083] The movable base mounting frame 401; the first slide drive motor 402; the movable base first slide 403; the movable base slide rail 404; the movable base second slide 405; the second slide adjustment screw 406.

[0084] Laminating mechanism 500;

[0085] Laminating mechanism bottom plate 501; laminating mechanism roller 502; laminating mechanism pressure roller 503.

[0086] Cutting mechanism 600;

[0087] Cutting mechanism mounting frame 601; material transfer clamp opening and closing drive cylinder 602; material transfer clamp displacement drive motor 603; cutting mechanism material transfer clamp 604; cutting mechanism upper cutter drive cylinder 605; cutting mechanism upper cutter 606; cutting mechanism lower cutter drive cylinder 607; cutting mechanism lower cutter 608.

[0088] Unloading mechanism 700;

[0089] The material pulling clamp 701 of the material unloading mechanism; the material unloading mechanism transfer platform mounting frame 702; the material unloading mechanism transfer platform 703; the material unloading mechanism turning device 704; the material unloading manipulator 705; the material unloading track 706; and the material unloading platform 707.

[0090] Lithium belt 800. DETAILED DESCRIPTION

[0091] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0092] In the description of the present invention, unless otherwise specified, "plurality" means two or more; the terms "center", "longitudinal", "lateral", "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be understood as limiting the present invention. In addition, the terms "first", "second", "third", etc. are used for descriptive purposes only and should not be understood as indicating or implying relative importance.

[0093] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0094] like Figure 1 As shown, a negative electrode production device includes a lithium strip supply mechanism 100, a tab forming mechanism 200, a tape unwinding mechanism 300, a laminating mechanism 500, a cutting mechanism 600, and a blanking mechanism 700, which are sequentially arranged on a machine platform. The tab forming mechanism 200 and the tape unwinding mechanism 300 are arranged on a movable base 400. The movable base 400 can drive the tab forming mechanism 200 and the tape unwinding mechanism 300 to move, and the movement direction of the two is consistent with the direction of the lithium strip unwound by the lithium strip supply mechanism 100. Through the movement of the tab forming mechanism 200 and the tape unwinding mechanism 300, the processing rhythm of the lithium strip supply mechanism 100 is matched while increasing the unwinding speed. Compared with the fixed tab forming mechanism 200 and the tape unwinding mechanism 300, the processing rhythm is improved by about 15%.

[0095] Specifically, the beat improvement is achieved based on the reciprocating motion of the tab forming mechanism 200 and the tape unwinding mechanism 300 in the unwinding direction of the lithium strip 800. The traditional tab forming mechanism 200 and the tape unwinding mechanism 300 require the lithium strip 800 to stop unwinding before the tab riveting and taping work can be performed. In the present application, the movement speed of the tab forming mechanism 200 and the tape unwinding mechanism 300 is controlled to be consistent with the unwinding speed of the lithium strip 800, that is, the tab forming mechanism 200 and the tape unwinding mechanism 300 are relatively stationary with the lithium strip 800, thereby achieving the tab riveting and tape pasting during the unwinding process of the lithium strip 800, and ultimately achieving the beat improvement effect. After completing the tab riveting and tape pasting actions, it quickly returns to its original position and performs the tab riveting and tape pasting actions at the next position.

[0096] like Figure 2 As shown, the lithium ribbon supply mechanism 100 includes a lithium ribbon supply mechanism base 101, and a lithium ribbon supply mechanism mounting plate 102 is vertically arranged on the lithium ribbon supply mechanism base 101 through a slide rail slider. The moving direction of the lithium ribbon supply mechanism mounting plate 102 on the lithium ribbon supply mechanism base 101 is perpendicular to the unwinding direction of the lithium ribbon 800, so as to adjust the initial position of the lithium ribbon 800.

[0097] Furthermore, a lithium ribbon roll 103 is mounted on a lithium ribbon feeding mechanism mounting plate 102 and is actively fed by a motor. The lithium ribbon 800 unwound from the lithium ribbon roll 103 passes through a floating roller, a tension roller 105, a deflection correction roller 107, and a brush 109 before entering the tab forming mechanism 200.

[0098] Specifically, the tension roller 105, the deflection correction roller 107, and the brush 109 are all mounted on the lithium ribbon feeding mechanism mounting plate 102. The tension roller 105 is mounted on the lithium ribbon feeding mechanism mounting plate 102 via a slide block and moves vertically. The tension roller 105 is connected to the piston of the tension roller drive cylinder 104, which controls the vertical movement of the tension roller 105. During feeding, the lithium ribbon 800 is positioned above the floating roller and the deflection correction roller 107. Driven by the tension roller drive cylinder 104, the tension roller 105 moves downward and presses against the lithium ribbon 800, tightening the ribbon 800 and generating tension, thereby ensuring processing quality.

[0099] On the lithium ribbon supply mechanism mounting plate 102, a secondary correction roller 106 is installed corresponding to the correction roller 107. The secondary correction roller 106 is fixed, while the correction roller 107 is fixed to the lithium ribbon supply mechanism mounting plate 102 via a bracket. The correction roller 107 is movably mounted on the bracket. The correction roller 107 uses its own weight to press on the secondary correction roller 106, confining the lithium ribbon 800 between the correction roller 107 and the secondary correction roller 106. The correction roller 107 and the secondary correction roller 106 apply pressure to the lithium ribbon 800 to prevent the lithium ribbon 800 from deflecting during supply.

[0100] On the lithium ribbon supply mechanism mounting plate 102, a brush base plate 108 is also provided corresponding to the brush 109. The brush base plate 108 is equivalent to a base, and the lithium ribbon 800 passes between the brush base plate 108 and the brush 109. A drive motor is provided at one end of the brush 109 to drive the brush 109 to rotate. When the brush 109 rotates, its bristles brush over the brush base plate 108, playing the role of flexibly conveying the lithium ribbon 800 to the downstream position. Using a soft brush 109 for feeding can ensure that the lithium ribbon 800 is not damaged in any way. Secondly, it can also sweep away dust on the lithium ribbon 800 and play a cleaning role. Since the feeding is carried out by a soft brush 109, it is easy for the brush 109 to deviate. Therefore, the correction roller 107 and the correction auxiliary roller 106 need to be set close to the brush 109 to avoid deviation.

[0101] A displacement sensor 110 is also installed on the lithium ribbon supply mechanism mounting plate 102. Displacement sensor 110 is mounted directly above the lithium ribbon coil 103 via a bracket and is used to calibrate the position of the lithium ribbon coil 103 during installation. A mounting plate displacement drive motor 111 is installed on the lithium ribbon supply mechanism base 101 to drive the lithium ribbon supply mechanism mounting plate 102 to move on the lithium ribbon supply mechanism base 101. This motor adjusts the unwinding position of the lithium ribbon supply mechanism 100 during the unwinding process. Therefore, the combination of displacement sensor 110 and the movable nature of the lithium ribbon supply mechanism mounting plate 102 during operation achieves a dual correction effect, resulting in a higher production yield.

[0102] like Figure 3 As shown, the tab forming mechanism 200 includes a tab unwinding device 201, a tab pressing device 202, a tab feeding device 203, a tab cutting device 204, a tab clamping device 205 and a tab riveting device 206 which are arranged in sequence; the tab coil starts from the tab unwinding device 201 and is processed by the above-mentioned devices in sequence to form a tab sheet with uniform length and is finally riveted to the lithium strip 800.

[0103] Furthermore, the tab forming mechanism 200 can move in the unwinding direction of the lithium ribbon 800 and perform tab riveting during the movement, thereby improving the overall processing rhythm of the equipment.

[0104] like Figure 4 As shown, the tab unwinding device 201 includes a vertically arranged tab unwinding device mounting plate 2011, and the tab material coil 2012 is arranged on the top of the tab unwinding device mounting plate 2011. The tab material strip starts from the tab material coil 2012 and passes downward through the first tab unwinding feeding wheel 2013, then moves horizontally and passes around the tab unwinding tensioning wheel 2014, and then passes through the second tab unwinding feeding wheel 2016. The second tab unwinding feeding wheel 2016 is located directly below the first tab unwinding feeding wheel 2013, and the distance between the two feeding wheels is equal to the diameter of the tab unwinding tensioning wheel 2014.

[0105] Furthermore, the axial center height of the tab unwinding tensioner 2014 coincides with the center height of the two feed rollers, and the tab unwinding tensioner spring 2015 is disposed transversely. Under the action of the tab unwinding tensioner spring 2015, the tab unwinding tensioner 2014 moves transversely, away from the two feed rollers, thereby tightening the tab strip. Due to the orientation of the tab unwinding tensioner spring 2015, combined with the spacing between the two feed rollers and the diameter of the tab unwinding tensioner 2014, the two sections of tab strip between the feed rollers and the tensioner are parallel, enabling good observation of the tension state and, to a certain extent, straightening the rolled strip (with the help of the elastic force of the tab unwinding tensioner spring 2015).

[0106] Furthermore, the tab unwinding device 201 also includes a tab waste roll 2019, which is also arranged on the tab unwinding device mounting plate 2011. When the tab material strip passes through the second tab unwinding feed wheel 2016, the release film is separated here and wound up by the tab waste roll 2019. The tab material strip continues downward and passes through the first tab unwinding guide wheel 2017 and the second tab unwinding guide wheel 2018 in turn, and then enters the tab clamping device 202 in a horizontal state.

[0107] like Figure 5 As shown, the tab pressing device 202 includes a vertically arranged tab pressing device mounting plate 2021. The tab pressing device driving cylinder 2022 is arranged at the top of the tab pressing device mounting plate 2021, and its piston is vertically downward. A tab pressing base 2023 is arranged on the tab pressing device mounting plate 2021 and below the tab pressing device driving cylinder 2022. A tab pressing plate 2024 is arranged on the piston of the tab pressing device driving cylinder 2022. When the piston is extended, the tab pressing plate 2024 is in close contact with the tab pressing base 2023, and the tab material strip is compressed between the two.

[0108] At the entrance of the tab pressing plate 2024 and the tab pressing base 2023, a first tab straightening roller 2025 and a second tab straightening roller 2026 are installed. The upper edge of the first tab straightening roller 2025 is flush with the upper edge of the second tab unwinding guide wheel 2018, that is, the tab material strip unwound from the tab unwinding device 201 enters the tab pressing device 202 in a horizontal state. The tension of the tab unwinding tension spring 2015 is utilized in conjunction with the two feeding rollers in the tab unwinding device 201 to achieve tab straightening, and the tab enters the straightening roller area in a horizontal state to ensure the tab straightening effect.

[0109] The height of the lower edge of the second tab straightening roller 2026 is lower than the tab pressing base 2023. The end of the tab pressing base 2023 close to the second tab straightening roller 2026 is arc-shaped. The tab material strip passes around the bottom of the second tab straightening roller 2026 and is pressed at the tab pressing plate 2024 after passing through the arc-shaped portion 2023A of the pressing base.

[0110] It should be noted that the tab pressing device 202 is used to compress the tab material strip when it is not flowing. When the tab material strip needs to flow backward, the tab pressing device drives the piston of the cylinder 2022 to retract, and the tab material strip is released. In the entire production process, it plays a role in fixing the strip and preventing the strip from piling up in the subsequent processing equipment.

[0111] like Figure 6 As shown, the tab feeding device 203 includes a tab feeding device base 2031. The tab feeding device base 2031 is in the shape of a long strip, and its two ends in the length direction are respectively adjacent to the tab pressing device 202 and the tab cutting device 204. Its function is to transport the tab material strip from the tab pressing device 202 to the tab cutting device 204 with a fixed length, so as to facilitate cutting the tab finished product of a fixed length.

[0112] A tab feeding drive motor 2032 is provided at one end of the tab feeding device base 2031. A tab feeding slider 2033 that moves along the length direction of the base is also provided on the tab feeding device base 2031. The tab feeding drive motor 2032 drives the tab feeding slider 2033 to reciprocate within a fixed range.

[0113] On the tab feeding slider 2033, a tab feeding vertical plate 2034 is provided, a tab feeding clamping block driving cylinder 2036 is provided on the top of the tab feeding vertical plate 2034, and a tab feeding clamping block 2037 is provided on the piston of the tab feeding clamping block driving cylinder 2036. A tab feeding clamping plate 2035 is also provided on the tab feeding vertical plate 2034, and the tab feeding clamping plate 2035 and the tab feeding clamping block 2037 match each other.

[0114] The height of the tab feeding splint 2035 is consistent with the height of the tab pressing plate 2024 of the tab pressing device 202 , and the tab material strip led out from the tab pressing plate 2024 is introduced into the tab feeding splint 2035 in a horizontal state.

[0115] The tab feeding device 203 can be regarded as a pneumatic mechanical clamp that can move back and forth. The pneumatic clamp part is composed of a tab feeding clamp block driving cylinder 2036, a tab feeding clamp block 2037 and a tab feeding clamp plate 2035.

[0116] The tab feeding device 203 operates synchronously with the tab pressing device 202. The tab pressing device drives the cylinder 2022 to loosen the tab material strip. At this time, the tab feeding clamp drives the cylinder 2036 to clamp the tab material strip. Then the tab feeding drive motor 2032 drives to transfer the tab material strip to the tab cutting device 204, loosens the tab material strip and returns to its original position. After the tab feeding device 203 is transported to its place and before loosening the tab material strip, the tab pressing device 202 presses the tab material strip. Then the tab feeding device 203 returns to its original position to complete a working cycle.

[0117] During the transport of the tab strip, the tab pressing device 202 does not press the tab strip. At this time, the unwinding speed of the tab unwinding device 201 should be less than or equal to the feeding speed of the tab feeding device 203. Because the tab unwinding device 201 is equipped with a tab unwinding tensioner 2014 and a tab unwinding tensioning spring 2015, when the unwinding speed is less than the feeding speed, the tab unwinding tensioner 2014 and the tab unwinding tensioning spring 2015 can be combined to achieve a tolerance, compressing the tab unwinding tensioning spring 2015. Therefore, based on the combination of the tab feeding device 203, the tab unwinding tensioner 2014, and the tab unwinding tensioning spring 2015, the unwinding speed of the tab unwinding device 201 can be adjusted over a wide range.

[0118] like Figure 7 As shown, the tab cutting device 204 includes a tab cutting device mounting frame 2041, a tab cutting tool driving cylinder 2042 is set on the top of the tab cutting device mounting frame 2041, its piston is vertically downward, and the tab cutting movable knife 2043 is set on the piston of the cylinder.

[0119] Below the tab cutting movable knife 2043, a tab cutting fixed knife 2044 is provided. The tab cutting fixed knife 2044 is fixed and does not move. During the cutting operation, only the tab cutting movable knife 2043 moves up and down to achieve the cutting operation. At the front end of the engagement portion of the two cutters, a tab cutting device stopper 2045 is provided. The tab cutting device stopper 2045 is a fixed block with a flat hole. The tab material strip passes through the flat hole to ensure that the tab material strip is in the correct position and does not deviate during cutting.

[0120] A correction device is installed on the tab cutting device mounting frame 2041, downstream of the cutter. It includes a tab correction pressure block drive cylinder 2046 and a tab correction support block drive cylinder 2048. The two cylinders are arranged so that their pistons face each other. A tab correction pressure block 2047 is mounted on the piston of tab correction pressure block drive cylinder 2046, while a tab correction finger cylinder 2049 and a tab correction support block 2049A are mounted on the piston of tab correction support block drive cylinder 2048.

[0121] The movable ends of the tab correction finger cylinder 2049, i.e., its two fingers, are located on either side of the tab correction support block 2049A. It is important to note that the length direction of the two fingers is consistent with the direction of the tab strip, and the movable direction of the fingers is perpendicular to the direction of the tab strip. The two fingers and the tab correction support block 2049A form a groove-like structure for receiving the severed tab. During operation, the tab correction support block 2049A and the tab correction pressing block 2047 contact and squeeze each other, pressing the tab strip tightly.

[0122] The tab material strip will be transported to a fixed length by the tab feeding device 203 and enter the tab cutting device 204, and then cut by the tab cutting movable knife 2043 and the tab cutting fixed knife 2044. The cut tab product will fall into the groove structure formed by the movable end of the tab correction finger cylinder 2049 and the tab correction support block 2049A. At this time, the movable end of the tab correction finger cylinder 2049 is slightly retracted, and the posture and position of the tab will be adjusted to the expected state. Then the tab correction pressure block driving cylinder 2046 and the tab correction support block driving cylinder 2048 work together to make the tab correction pressure block 2047 move relative to the tab correction support block 2049A. Since the tab correction finger cylinder 2049 is also located on the piston of the tab correction support block driving cylinder 2048, it moves with it, thereby maintaining the posture of the tab.

[0123] On the tab correction block 2047, specifically on the contact surface between it and the tab correction support block 2049A, there are several tiny conical protrusions evenly arranged. After the tab correction block 2047 and the tab correction support block 2049A are pressed together, the pole piece between the two is leveled, and at the same time the conical protrusions are pressed into the tab. At this time, the tab will be stuck on the conical protrusions due to deformation. Therefore, when the tab correction block 2047 is separated from the tab correction support block 2049A, the tab will be attached to the tab correction block 2047.

[0124] like Figure 8As shown, the tab clamping device 205 has a similar structure to the tab feeding device 203, including an elongated tab clamping device base plate 2051. A tab clamping device drive motor 2052 is disposed at one end of the tab clamping device base plate 2051. A tab clamping device slider 2053 is also disposed on the tab clamping device base plate 2051 via a slide rail. The tab clamping device drive motor 2052 is configured to drive the tab clamping device slider 2053 to reciprocate along the direction of the tab clamping device base plate 2051. A tab clamping device mounting plate 2054 is disposed on the tab clamping device slider 2053.

[0125] A tab clamping jaw driving cylinder 2055 is provided on the tab clamping device mounting vertical plate 2054, and a tab clamping jaw 2056 is provided on the movable part of the tab clamping jaw driving cylinder 2055. The tab clamping jaw 2056 opens and closes up and down, and is used to clamp the finished tab that has been cut and corrected in the tab cutting device 204, and then transport it to the tab riveting device 206.

[0126] like Figure 9 As shown, the tab riveting device 206 includes a tab riveting mounting frame 2061. A tab riveting drive cylinder 2062 is provided on top of the tab riveting mounting frame 2061. The piston of the tab riveting drive cylinder 2062 is vertically downwardly arranged, and a tab riveting head 2063 is provided on the piston. A tab riveting seat 2064 is provided on the tab riveting mounting frame 2061 at a vertical position corresponding to the tab riveting head 2063.

[0127] A first tab riveting roller 2065 and a second tab riveting roller 2066 are respectively provided upstream and downstream of the tab riveting seat 2064 for supporting the lithium strip 800 .

[0128] In the complete machine, the lithium strip 800 sequentially passes through the first tab riveting roller 2065, the tab riveting seat 2064, and the second tab riveting roller 2066. The upper surface of the tab riveting seat 2064 is flush with the upper edges of the two riveting rollers.

[0129] Furthermore, the position of the second tab riveting roller 2066 can be adjusted forward and backward in the direction of movement of the lithium ribbon 800 to meet the adjustment of the supporting effect of the lithium ribbon 800.

[0130] like Figure 10 As shown, the tape unwinding mechanism 300 includes a tape unwinding mechanism bottom plate 301 , which is disposed on a movable base 400 and can move on the movable base 400 along the length direction of the lithium tape 800 .

[0131] A tape unwinding mechanism sub-base plate 303 is mounted on the tape unwinding mechanism base plate 301 via a slider guide. A tape unwinding mechanism sub-base plate drive motor 302 drives the tape unwinding mechanism sub-base plate 303 to move along the width of the lithium tape 800 on the tape unwinding mechanism base plate 301. A vertical tape unwinding mechanism mounting plate 304 is mounted on the tape unwinding mechanism sub-base plate 303 for mounting the various actuators of the tape unwinding mechanism 300.

[0132] According to the conveying direction of the tape in the tape unwinding mechanism 300 , the tape roll 305 , the tape transfer device, the tape pressing device and the tape hook 311 are arranged in sequence from upstream to downstream.

[0133] The tape transfer device includes a horizontally arranged tape unwinding plate drive cylinder 306 and a tape unwinding pawl drive cylinder 307, both of which face the tape laminating device. The tape unwinding pawl drive cylinder 307 is located below the tape unwinding plate drive cylinder 306. The piston of the tape unwinding plate drive cylinder 306 is connected to the tape unwinding plate 308, the tape unwinding pawl drive cylinder 307, and the tape unwinding pawl 309. The piston of the tape unwinding pawl drive cylinder 307 is connected to the driving end of the tape unwinding pawl 309, which is located directly below the tape unwinding plate 308. When the piston of the tape unwinding pawl drive cylinder 307 extends, it pushes the driving end of the tape unwinding pawl 309, causing the oscillating end of the tape unwinding pawl 309 to move away from the tape unwinding plate 308.

[0134] In the extending direction of the tape unwinding push plate 308, a tape laminating driving cylinder 314 is provided, and between the tape laminating driving cylinder 314 and the tape unwinding push plate 308, a tape cutter 310 that can move up and down is provided.

[0135] The lithium tape 800 passes directly below the tape laminating drive cylinder 314. A tape hook assembly is located on the opposite side of the tape unwinding push plate 308, with the lithium tape 800 as the axis. This assembly includes a tape hook 311, a horizontal displacement drive cylinder 312 for driving the hook 311, and a vertical displacement drive cylinder 313 for driving the hook 311.

[0136] The end of the tape hook 311 close to the tape unwinding push plate 308 is its working part, and the working part has a tooth structure that can hook the tape.

[0137] like Figure 11As shown, the mobile base 400 includes a mobile base mounting frame 401, and the mobile base mounting frame 401 is fixedly mounted on the frame. The tab forming mechanism 200 and the tape unwinding mechanism 300 are jointly arranged on the mobile base 400 through the mobile base slide rail 404. The setting direction of the mobile base slide rail 404 is consistent with the length direction of the lithium ribbon 800. That is, the tab forming mechanism 200 and the tape unwinding mechanism 300 can move in the length direction of the lithium ribbon 800. Since the two mechanisms are arranged on the same track, the relative position error between the two is infinitely reduced, which can solve the problem of repositioning accuracy while improving the production rhythm, and does not require additional positioning cameras and other equipment, which can save a lot of costs.

[0138] The mobile base 400 also includes a first slide drive motor 402, mounted on the mobile base mounting bracket 401, for driving the mobile base's first slide 403. The first slide 403 supports the tape unwinding mechanism 300. Furthermore, the mobile base includes a second slide 405 and a second slide adjustment screw 406. The tab forming mechanism 200 is mounted on the second slide 405. This structure enables the movement of the tab forming mechanism 200 and the tape unwinding mechanism 300, achieving a faster tempo.

[0139] like Figure 12 As shown, the laminating mechanism 500 includes a laminating mechanism base plate 501, on which are disposed two laminating mechanism rollers 502 and a laminating mechanism pressure roller 503. The two laminating mechanism rollers 502 and the laminating mechanism pressure roller 503 are arranged in a herringbone shape, wherein the laminating mechanism pressure roller 503 is located at the top.

[0140] Furthermore, the lower edge of the laminating roller 503 is lower than the upper edge of the laminating roller 502. The taped lithium strip 800 passes under the laminating roller 503 and over the laminating roller 502. Leveraging the tension of the lithium strip 800, the tape is pressed through the laminating roller 503, firmly adhering to the lithium strip 800.

[0141] like Figure 13-14 As shown, further, the laminating mechanism 500 is disposed on the cutting mechanism 600 .

[0142] like Figure 13-14 As shown, the cutting mechanism 600 includes a cutting mechanism mounting frame 601. A material transfer clamp opening and closing drive cylinder 602 is mounted on the cutting mechanism mounting frame 601 via a slide rail. A cutting mechanism material transfer clamp 604 is mounted on the movable end of the material transfer clamp opening and closing drive cylinder 602 for clamping the lithium ribbon 800. The movable direction of the material transfer clamp opening and closing drive cylinder 602 on the cutting mechanism mounting frame 601 is aligned with the length of the lithium ribbon 800 and is driven by a material transfer clamp displacement drive motor 603.

[0143] The cutting mechanism 600 further includes a cutting assembly consisting of an upper cutter driving cylinder 605 , an upper cutter 606 , a lower cutter driving cylinder 607 , and a lower cutter 608 for cutting the lithium ribbon 800 .

[0144] Furthermore, the movable stroke of the material transfer clamp opening and closing driving cylinder 602 on the cutting mechanism mounting frame 601 is the length of the lithium ribbon 800 being cut.

[0145] The blanking mechanism 700 includes a blanking mechanism pulling clamp 701 , which is positioned opposite to the cutting mechanism moving clamp 604 , and between which is the blanking mechanism moving platform mounting frame 702 .

[0146] The unloading mechanism transfer platform mounting frame 702 translates perpendicularly to the length of the lithium ribbon 800. A unloading mechanism transfer platform 703 is mounted on the unloading mechanism transfer platform mounting frame 702 to receive the lithium ribbon 800 cut by the cutting mechanism 600. A unloading mechanism flipping device 704 is located at the front and rear positions of the unloading mechanism transfer platform 703 in the direction of movement. The flipping device 704 is used to pick up the lithium ribbon 800 on the unloading mechanism transfer platform 703 and flip it.

[0147] The unloading mechanism 700 also includes a gantry-type unloading robot 705 and an unloading track 706. The unloading track 706 is arranged on one side of the unloading mechanism transfer platform mounting frame 702, and the unloading robot 705 spans above the unloading track 706 and the unloading mechanism transfer platform mounting frame 702, and is used to remove the material on the unloading mechanism turning device 704 and transfer it to the unloading platform 707 on the unloading track 706.

[0148] The above description is merely a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any technician familiar with the present profession can make some changes or modifications to equivalent embodiments of equivalent changes using the technical content disclosed above without departing from the scope of the technical solution of the present invention. However, any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A negative electrode tableting machine, characterized in that: The invention comprises a lithium strip supply mechanism (100), a tab forming mechanism (200), a tape unwinding mechanism (300), a laminating mechanism (500), a cutting mechanism (600) and a blanking mechanism (700) which are sequentially arranged from raw materials to finished products; The tab forming mechanism (200) and the tape unwinding mechanism (300) are arranged on a movable base (400); The displacement directions of the tab forming mechanism (200) and the tape unwinding mechanism (300) on the movable base (400) are parallel to the movement direction of the lithium tape (800); A movable base slide rail (404) is provided on the movable base (400), and the tab forming mechanism (200) and the tape unwinding mechanism (300) move together on the movable base slide rail (404); The tab forming mechanism (200) is driven by the second slide adjusting screw (406); the tape unwinding mechanism (300) is driven by the first slide driving motor (402); the activities of the two do not affect each other; The tab forming mechanism (200) and the tape unwinding mechanism (300) are arranged in a direction perpendicular to the unwinding direction of the lithium tape (800); The lithium ribbon supply mechanism (100) comprises a lithium ribbon supply mechanism base (101), a lithium ribbon supply mechanism mounting plate (102) is vertically arranged on the lithium ribbon supply mechanism base (101) via a slide rail slider, and the movement direction of the lithium ribbon supply mechanism mounting plate (102) on the lithium ribbon supply mechanism base (101) is perpendicular to the unwinding direction of the lithium ribbon (800); The lithium strip material roll (103) is arranged on the lithium strip supply mechanism mounting plate (102), and the lithium strip material roll (103) is actively fed by a motor; The lithium belt (800) passes through a floating roller, a tension roller (105), a deviation correction roller (107) and a brush (109) in sequence; The tension roller (105) is arranged on the lithium strip supply mechanism mounting plate (102) via a slide rail slider, and its movable direction is a vertical direction; the tension roller (105) is connected to the piston of the tension roller driving cylinder (104); On the lithium ribbon supply mechanism mounting plate (102), a deflection correction auxiliary roller (106) is provided corresponding to the deflection correction roller (107), the deflection correction auxiliary roller (106) is fixed, the deflection correction roller (107) is fixed to the lithium ribbon supply mechanism mounting plate (102) through a bracket, and the deflection correction roller (107) is movably provided on the bracket, and the deflection correction roller (107) presses on the deflection correction auxiliary roller (106) by its own weight; The tape unwinding mechanism (300) includes a tape unwinding mechanism bottom plate (301), which is arranged on a movable base (400) and can move on the movable base (400) in the length direction of the lithium tape (800); A tape unwinding mechanism sub-bottom plate (303) is provided on the tape unwinding mechanism bottom plate (301) via a slider guide rail, and a tape unwinding mechanism sub-bottom plate driving motor (302) drives the tape unwinding mechanism sub-bottom plate (303) to move on the tape unwinding mechanism bottom plate (301) along the width direction of the lithium tape (800); A vertical tape unwinding mechanism mounting plate (304) is provided on the tape unwinding mechanism sub-bottom plate (303); and a tape material roll (305), a tape transfer device, a tape pressing device, and a tape hook (311) are provided in sequence from upstream to downstream according to the conveying direction of the tape in the tape unwinding mechanism (300); The adhesive tape transfer device comprises a horizontally arranged adhesive tape unwinding push plate driving cylinder (306) and an adhesive tape unwinding swing claw driving cylinder (307), the output ends of which face one side of the adhesive tape pressing device; wherein the adhesive tape unwinding swing claw driving cylinder (307) is located below the adhesive tape unwinding push plate driving cylinder (306); The piston of the tape unwinding push plate driving cylinder (306) is connected to the tape unwinding push plate (308), the tape unwinding swing claw driving cylinder (307) and the tape unwinding swing claw (309); the piston of the tape unwinding swing claw driving cylinder (307) is connected to the driving end of the tape unwinding swing claw (309); and the swing end of the tape unwinding swing claw (309) is located directly below the tape unwinding push plate (308); When the piston of the tape unwinding swing claw driving cylinder (307) extends, it pushes the driving end of the tape unwinding swing claw (309), and at this time, the swing end of the tape unwinding swing claw (309) is away from the tape unwinding push plate (308); A tape laminating drive cylinder (314) is provided in the extending direction of the tape unwinding push plate (308), and a tape cutter (310) capable of moving up and down is provided at a position between the tape laminating drive cylinder (314) and the tape unwinding push plate (308); The lithium tape (800) passes directly below the tape laminating driving cylinder (314), and a tape hook assembly is provided on the opposite side of the tape unwinding push plate (308) with the lithium tape (800) as the axis; The tape hook assembly comprises a tape hook claw (311), a tape hook claw horizontal displacement driving cylinder (312) and a tape hook claw vertical displacement driving cylinder (313) for driving the tape hook claw (311) to move.

2. The negative electrode tableting machine according to claim 1, wherein: The tab forming mechanism (200) comprises a tab unwinding device (201), a tab pressing device (202), a tab feeding device (203), a tab cutting device (204), a tab clamping device (205) and a tab riveting device (206) which are arranged in sequence; The tab unwinding device (201) comprises a tab unwinding device mounting plate (2011) arranged vertically, and the tab material roll (2012) is arranged on top of the tab unwinding device mounting plate (2011); The tab unwinding device (201) further comprises a first feeding wheel (2013) and a second feeding wheel (2016), wherein the first feeding wheel (2013) and the second feeding wheel (2016) are arranged below the tab coil (2012), and the tab unwinding tensioning wheel (2014) is arranged on one side of the first feeding wheel (2013); The first feeding wheel (2013) and the second feeding wheel (2016) are arranged vertically; The tab unwinding tensioning wheel (2014) moves horizontally based on a tab unwinding tensioning spring (2015) arranged horizontally; The tab unwinding device (201) further comprises a tab waste roll (2019), and the tab waste roll (2019) is also arranged on the tab unwinding device mounting plate (2011); The axis height of the tab unwinding tensioner (2014) is exactly the same as the center height between the first feeding wheel (2013) and the second feeding wheel (2016); The distance between the first feeding wheel (2013) and the second feeding wheel (2016) is the same as the diameter of the tab unwinding and tensioning wheel (2014); The tab pressing device (202) comprises a tab pressing device mounting plate (2021) arranged vertically, and a tab pressing device driving cylinder (2022) is arranged at the top end of the tab pressing device mounting plate (2021), with its piston pointing vertically downward; A tab pressing base (2023) is provided on the tab pressing device mounting plate (2021) and below the tab pressing device driving cylinder (2022); A tab pressing plate (2024) is provided on the piston of the tab pressing device driving cylinder (2022); when the piston is extended, the tab pressing plate (2024) is in close contact with the tab pressing base (223), and the tab material strip is pressed between the two. A first tab straightening roller (2025) and a second tab straightening roller (2026) are provided at the entrances of the tab pressing plate (2024) and the tab pressing base (2023).

3. The negative electrode tableting machine according to claim 1, wherein: The mobile base (400) further comprises a first slide drive motor (402), which is arranged on the mobile base mounting frame (401) and is used to drive the first slide (403) of the mobile base; The first slide (403) is used to support the tape unwinding mechanism (300); In addition, the movable base also includes a second slide (405) and a second slide adjusting screw (406), and the tab forming mechanism (200) is installed on the second slide (405) of the movable base.

4. The negative electrode tableting machine according to claim 1, wherein: The laminating mechanism (500) comprises a laminating mechanism bottom plate (501), on which two laminating mechanism rollers (502) and a laminating mechanism pressing roller (503) are arranged; The two laminating mechanism rollers (502) and the laminating mechanism pressing roller (503) are distributed in a herringbone shape, wherein the laminating mechanism pressing roller (503) is located at the top; The lower edge of the laminating mechanism pressure roller (503) is lower than the upper edge of the laminating mechanism support roller (502).

5. The negative electrode tableting machine according to claim 1, wherein: The cutting mechanism (600) includes a cutting mechanism mounting frame (601), on which a material transfer clamp opening and closing driving cylinder (602) is arranged via a slide rail, and a cutting mechanism material transfer clamp (604) is arranged on the movable end of the material transfer clamp opening and closing driving cylinder (602) for clamping the lithium strip (800); The moving direction of the material transfer clamp opening and closing driving cylinder (602) on the cutting mechanism mounting frame (601) is consistent with the length direction of the lithium strip (800), and is driven by the material transfer clamp displacement driving motor (603).

6. The negative electrode tableting machine according to claim 5, characterized in that: The cutting mechanism (600) further comprises a cutting assembly consisting of an upper cutting blade driving cylinder (605), an upper cutting blade (606), a lower cutting blade driving cylinder (607), and a lower cutting blade (608), for cutting the lithium strip (800).

7. The negative electrode tableting machine according to claim 1, wherein: The blanking mechanism (700) includes a blanking mechanism material pulling clamp (701), the position of the blanking mechanism material pulling clamp (701) is opposite to the position of the cutting mechanism material moving clamp (604), and the blanking mechanism transfer platform mounting frame (702) is located between the blanking mechanism material pulling clamp (701) and the cutting mechanism material moving clamp (604); The blanking mechanism transfer platform mounting frame (702) moves horizontally in a direction perpendicular to the length of the lithium strip (800), and a blanking mechanism transfer platform (703) is provided on the blanking mechanism transfer platform mounting frame (702) for receiving the lithium strip (800) cut by the cutting mechanism (600); At the front and rear positions of the moving direction of the blanking mechanism transfer platform (703), a blanking mechanism flipping device (704) is respectively provided for sucking the lithium strip (800) on the blanking mechanism transfer platform (703) and flipping it.

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