Automatic deviation correction cutting device

Abstract

The application discloses an automatic deviation rectifying and cutting device and belongs to the technical field of battery manufacturing. The punching die comprises an upper die assembly and a lower die assembly. The upper die assembly and the lower die assembly can approach or move away from each other. The upper die assembly and the lower die assembly jointly define a material channel extending along a first direction. The material channel is provided with a punching station. A first deviation rectifying mechanism is used for driving the punching die to move along a second direction. The first direction, the second direction and the up-down direction are perpendicular to each other. A second deviation rectifying mechanism is used for driving the punching die to rotate around the center of the upper die assembly. The application is used for cutting the pole piece of the battery cell and integrates the functions of punching, cutting and deviation rectifying. The time consumed by the process steps is reduced, the work efficiency is improved, and the deviation rectifying effect is good.

Description

Technical Field

[0001] This invention belongs to the field of battery manufacturing technology, and specifically relates to an automatic correction and cutting device. Background Technology

[0002] Currently, battery cells can be categorized into winding and stacking processes based on their manufacturing technology. During the stacking process, a stacking alignment and cutting device is typically used. However, existing stacking alignment and cutting devices usually involve first alignment of the electrode sheets, then stamping the corresponding shape onto the sheets, and finally cutting the stamped sheets. This results in numerous steps, increased processing time, and low overall processing efficiency. Furthermore, the electrode sheets require axial and radial movement during alignment, leading to poor alignment accuracy, low alignment stability, and a high likelihood of defective products. Summary of the Invention

[0003] The purpose of this invention is to provide an automatic correction and cutting device that integrates functions such as stamping, cutting and correction, reduces the time consumed by process steps, improves work efficiency, and has a good correction effect.

[0004] The technical solution adopted to solve the above-mentioned technical problems is as follows: This invention provides an automatic correction and cutting device, comprising: A punching die, the punching die including an upper die assembly and a lower die assembly, the upper die assembly and the lower die assembly being able to approach or move away from each other, the upper die assembly and the lower die assembly jointly defining a material channel extending along a first direction, the material channel being provided with a punching station; The first correction mechanism is used to drive the punching die to move along the second direction, and the first direction, the second direction and the up and down direction are perpendicular to each other; The second correction mechanism is used to drive the punching die to rotate around the center of the upper die assembly.

[0005] The present invention has at least the following beneficial effects: when the electrode strip moves along the material channel to the punching station, the upper die assembly and the lower die assembly approach each other to close the die, thereby completing the punching and cutting of the electrode strip, so that the finished product is separated from the electrode strip and leaves the punching station as the lower die assembly moves downward, which facilitates unloading; moreover, when the electrode strip needs to be corrected, the first correction mechanism can be used to drive the punching die to move a certain distance along the second direction to adjust the position of the punching die relative to the electrode strip in the second direction, thereby completing the linear correction of the electrode relative to the punching die, and the second correction mechanism can be used to drive the punching die to rotate around the center of the upper die assembly by a certain angle to adjust the angular position of the punching die relative to the electrode strip, thereby completing the rotational correction of the electrode relative to the punching die.

[0006] Compared with existing technologies, this invention integrates stamping, cutting and correction functions into one unit, which can perform stamping and correction processing on electrode strips, reduce the time spent on process steps, improve the production efficiency of finished electrode products, and has a good correction effect on electrode sheets.

[0007] As a further improvement to the above technical solution, the punching die has a rotation axis extending in the vertical direction. The first correction mechanism includes a first linear drive component and a first support. The output end of the first linear drive component is connected to the first support to drive the first support to move in a second direction. The second correction mechanism is disposed on the first support. The output end of the second correction mechanism is connected to the punching die to drive the punching die to rotate around the rotation axis.

[0008] As a further improvement to the above technical solution, the second correction mechanism includes a second linear drive component and a second support. The punching die is disposed on the second support, which is located above the first support and is rotatably connected to the first support. The second linear drive component is disposed on the first support, and its output end is movably connected to the edge of the second support to drive the second support to rotate around the rotation axis.

[0009] As a further improvement to the above technical solution, the first support is provided with a plurality of track blocks, each track block having an arc surface, the center of the arc surface being located on the rotation axis, and all the arc surfaces together forming a track path. The second support is provided with at least two first rollers, and when the second support rotates relative to the first support, all the first rollers roll along the track path.

[0010] As a further improvement to the above technical solution, the first support is provided with a support member, the support member is provided with a plurality of universal balls, and the second support is in contact with all of the universal balls.

[0011] As a further improvement to the above technical solution, the arc surface is located on the side of the track block facing the axis of rotation, the track blocks are provided on opposite sides of the first support, each track block is provided with two first rollers, and the two first rollers are symmetrically arranged on the arc surface.

[0012] As a further improvement to the above technical solution, the second linear drive component includes a second motor, a second lead screw, a moving block, and a cam follower. The output shaft of the second motor is connected to the second lead screw via a transmission. The moving block is threadedly connected to the second lead screw. The cam follower is disposed on the moving block. The central axis of the cam follower extends in the vertical direction. The second support is provided with a sliding groove that cooperates with the cam follower. The sliding groove extends radially along the second support.

[0013] As a further improvement to the above technical solution, the second lead screw extends along the second direction, the first support is provided with the track blocks on opposite sides in the first direction, the first support is provided with the third linear drive component on opposite sides, the output end of the third linear drive component is provided with a pressing member, the pressing member is located above the second support, the third linear drive component can drive the pressing member to move downward and abut against the second support.

[0014] As a further improvement to the above technical solution, the automatic correction and cutting device also includes a fixed base, the first support is slidably connected to the fixed base in the second direction, the first linear drive component includes a first motor and a first lead screw, the output shaft of the first motor is drivenly connected to the first lead screw, the first lead screw extends in the second direction and is threadedly connected to the first support.

[0015] As a further improvement to the above technical solution, the automatic correction and cutting device further includes a first lifting component and a second lifting component. The upper mold assembly and the lower mold assembly are both slidably connected to the second support. The first support and the second support are both provided with through holes for the lower mold assembly to pass through. The output end of the first lifting component is movably connected to the upper mold assembly to drive the upper mold assembly to move up and down. The upper mold assembly can move relative to the first lifting component along a second direction and rotate around the rotation axis. The output end of the second lifting component is movably connected to the lower mold assembly to drive the lower mold assembly to move up and down. The lower mold assembly can move relative to the second lifting component along a second direction and rotate around the rotation axis.

[0016] As a further improvement to the above technical solution, both the upper mold assembly and the lower mold assembly are provided with slots extending along the second direction, and both the output end of the first lifting component and the output end of the second lifting component are provided with connecting blocks. The connecting blocks have circumferential surfaces that contact the opposite side walls of the slots.

[0017] As a further improvement to the above technical solution, the second lifting component includes a base, a rotary drive, an eccentric cam, a rocker arm, a second roller, and a connecting rod. The rotary drive is located on the base, and its output end is connected to the eccentric cam. One end of the rocker arm is hinged to the base, and the other end is hinged to one end of the connecting rod. The other end of the connecting rod is hinged to the lower mold assembly. The second roller is located on the rocker arm, and its outer peripheral surface contacts the outer peripheral surface of the eccentric cam.

[0018] As a further improvement to the above technical solution, the lower mold assembly is provided with a feeding fixture, and the feeding fixture is provided with a honeycomb suction cup for adsorbing the electrode sheet.

[0019] As a further improvement to the above technical solution, the automatic correction and cutting device also includes a waste cutting mechanism and a collection box. The material channel has an inlet and an outlet at opposite ends in the first direction, respectively. The waste cutting mechanism is located at the outlet, the collection box has an upward-facing collection port, the waste cutting mechanism has a waste outlet, and the waste outlet is connected to the collection port.

[0020] As a further improvement to the above technical solution, the waste cutting mechanism includes a third support, a fourth linear drive component, a cutter, and a conveying roller assembly. The third support is provided with a waste channel extending vertically. The output end of the fourth linear drive component is connected to the cutter to drive the cutter to enter and exit the waste channel in a first direction. The conveying roller assembly is located above the waste channel and is provided with a feed channel extending vertically. The feed channel is connected to the upper end of the waste channel, and the lower end of the waste channel is the waste outlet.

[0021] As a further improvement to the above technical solution, the conveying roller assembly includes a driving roller, a driven roller, and a fifth linear drive component. The driving roller and the driven roller extend along a second direction, and the driving roller and the driven roller are spaced apart along a first direction and jointly define the feeding channel. The output end of the fifth linear drive component is connected to the driven roller to drive the driven roller to move along the first direction.

[0022] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0023] The present invention will be further described below with reference to the accompanying drawings and embodiments; Figure 1 This is a schematic diagram of the automatic correction and cutting device provided in an embodiment of the present invention; Figure 2This is a schematic diagram of the automatic correction and cutting device provided in an embodiment of the present invention from another perspective; Figure 3 This is a schematic diagram of the automatic correction and cutting device provided in this embodiment of the invention after omitting the first lifting component and the second lifting component; Figure 4 This is a schematic diagram of the structure in which the output end of the second correction mechanism is connected to the second support in the automatic correction and cutting device provided in this embodiment of the invention. Figure 5 This is a schematic diagram of the structure of the second correction mechanism in the automatic correction and cutting device provided in the embodiment of the present invention; Figure 6 This is a schematic diagram of the structure of the first correction mechanism and the second correction mechanism in the automatic correction and cutting device provided in the embodiment of the present invention; Figure 7 This is a schematic diagram of the connection between the upper mold assembly and the first support in the automatic correction and cutting device provided in this embodiment of the invention; Figure 8 This is a schematic diagram of the structure of the automatic correction and cutting device provided in this embodiment of the invention, showing the connection between the first roller and the track block; Figure 9 This is a schematic diagram of the waste material cutting mechanism in the automatic correction and cutting device provided in this embodiment of the invention.

[0024] The following labels are used in the attached diagram: 100, electrode strip; 200, conveying mechanism; 210, conveying roller; 220, lower pressure roller; 300, punching die; 310, upper die assembly; 311, first slot; 320, support platform; 330, lower die assembly; 331, second slot; 410. Waste cutting mechanism; 411. Third motor; 412. Drive roller; 413. Driven roller; 414. Fifth linear drive component; 415. Cutter; 416. Fourth linear drive component; 417. Stop block; 420. Collection box; 430. Collection pipe; 500. First lifting component; 600. Second lifting component; 700, Second correction mechanism; 710, Second motor; 720, Second lead screw; 730, Moving block; 740, Cam follower; 751, Pressing component; 752, Lifting component; 760, Third linear drive component; 770, Support component; 780, Track block; 790, First roller; 800, First correction mechanism; 810, First motor; 910, Fixed base; 920, Second support; 921, Limiting block; 922, Arc-shaped hole; 930, Slider guide pair; 940, First support. Detailed Implementation

[0025] This section will describe in detail specific embodiments of the present invention. Preferred embodiments of the present invention are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and overall technical solution of the present invention, but they should not be construed as limiting the scope of protection of the present invention.

[0026] In the description of this invention, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc., are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0027] In the description of this invention, the use of terms such as "a number" means one or more, with "more than" meaning two or more. Terms like "greater than," "less than," and "exceeding" are understood to exclude the stated number, while terms like "above," "below," and "within" are understood to include the stated number. The use of terms like "first," "second," and "third" is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, the number of indicated technical features, or the sequential relationship between indicated technical features.

[0028] In the description of this invention, unless otherwise explicitly defined, terms such as "setting," "installing," and "connecting" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this invention in conjunction with the specific content of the technical solution.

[0029] Reference Figures 1 to 9 The following are some embodiments of the automatic correction and cutting device of the present invention.

[0030] like Figures 1 to 9 As shown, this embodiment of the invention provides an automatic deviation correction and cutting device, which is mainly used for electrode cutting of battery cells. This automatic deviation correction and cutting device integrates functions such as stamping, cutting and deviation correction, reducing the time consumed by process steps, improving work efficiency, and having a good deviation correction effect.

[0031] The automatic correction and cutting device has a vertical direction, a first direction, and a second direction, wherein both the first and second directions are perpendicular to the vertical direction, and the first direction is perpendicular to the second direction. In this embodiment, it is assumed that the first direction is the front-back direction, and the second direction is the left-right direction.

[0032] The automatic correction and cutting device includes a first correction mechanism 800, a second correction mechanism 700, a punching die 300, a first lifting component 500, and a second lifting component 600.

[0033] The punching die 300 has a rotation axis that extends vertically along the punching die 300, and the punching die 300 can rotate around this rotation axis.

[0034] The punching die 300 includes a lower die assembly 330 and an upper die assembly 310. A first lifting component 500 drives the upper die assembly 310 to move vertically, and a second lifting component 600 drives the lower die assembly 330 to move vertically. The first lifting component 500 and the second lifting component 600 can be linear drive devices such as electric cylinders, hydraulic cylinders, or pneumatic cylinders.

[0035] Since both the lower die assembly 330 and the upper die assembly 310 can move vertically, they can approach each other for mold closing; or they can move away from each other for mold parting. The lower die assembly 330 and the upper die assembly 310 together define a material channel that extends along a first direction of the punching die 300 and includes a punching station.

[0036] The first correction mechanism 800 is used to drive the punching die 300 to move along the second direction, so as to adjust the position of the punching die 300 in the second direction. The second correction mechanism 700 is used to drive the punching die 300 to rotate around the center of the upper die assembly 310, so as to adjust the angular position of the punching die 300 on the horizontal plane. At this time, the center of the upper die assembly 310 coincides with the rotation axis of the punching die 300.

[0037] When using the automatic correction and cutting device of this embodiment, the electrode strip 100 is conveyed to the material channel, so that the electrode strip 100 can move along the first direction to the punching station in the material channel. Then, the punching die 300 can be used to punch the electrode strip 100. Specifically, the lower die assembly 330 and the upper die assembly 310 are driven to move towards each other, so that the lower die assembly 330 and the upper die assembly 310 are brought closer to each other. Thus, through the closing of the lower die assembly 330 and the upper die assembly 310, the electrode strip 100 is punched and cut, so that the finished electrode can be separated from the electrode strip 100. The finished electrode leaves the punching station as the lower die assembly 330 moves downward, which facilitates the subsequent unloading of the finished electrode.

[0038] Compared with the prior art, the automatic correction and cutting device of this embodiment can stamp out the corresponding shape on the electrode strip 100 and cut it, without having to send the electrode strip 100 to the cutting station for cutting after the stamping work is completed. This can reduce the processing time of the finished electrode and improve work efficiency.

[0039] Assuming that the electrode strip 100 moves along the X-axis (i.e., the first direction), under the action of roller conveying, the electrode strip 100 will be offset in position before entering the material channel. Therefore, it is necessary to perform Y-axis (i.e., the second direction) correction and rotation axis correction.

[0040] When the electrode strip 100 needs to be corrected, the first correction mechanism 800 is used to drive the punching die 300 to move a certain distance along the second direction, so as to adjust the position of the punching die 300 relative to the electrode strip 100 in the second direction, thereby completing the linear correction of the electrode relative to the punching die 300; at the same time, the second correction mechanism 700 is used to drive the punching die 300 to rotate a certain angle around its own rotation axis, so as to adjust the angular position of the punching die 300 relative to the electrode strip 100, thereby completing the rotational correction of the electrode relative to the punching die 300.

[0041] Compared with existing technologies, during the correction process, the electrode strip 100 remains stationary. The position of the punching die 300 relative to the electrode strip 100 is adjusted by the first correction mechanism 800 and the second correction mechanism 700. The punching station is adjusted according to the positional deviation of the electrode strip 100, so that the punched electrode product meets the qualified level. This effectively solves the problems of poor correction accuracy, poor correction stability and high defect rate in existing technologies where the electrode is corrected by axial and radial movement.

[0042] It is understood that the present invention integrates stamping, cutting and correction functions, which can perform stamping and correction processing on the electrode strip 100, reduce the time spent on process steps, improve the production efficiency of the finished electrode, and have a good correction effect on the electrode.

[0043] In some embodiments, such as Figure 3 and Figure 6 As shown, the first correction mechanism 800 includes a first support 940 and a first linear drive component. The first support 940 is fixedly connected to the output end of the first linear drive component. When the first linear drive component is running, the output end of the first linear drive component can drive the first support 940 to move along a second direction. The second correction mechanism 700 is disposed on the first support 940, and the punching die 300 is fixedly connected to the output end of the second correction mechanism 700. When the second correction mechanism 700 is running, the output end of the second correction mechanism 700 can drive the punching die 300 to rotate around a vertically extending rotation axis.

[0044] Understandably, when the first linear drive component drives the first support 940 to move along the second direction, the second correction mechanism 700 and the punching die 300 will move together with the first support 940 to complete the position correction of the punching die 300 relative to the electrode strip 100 in the second direction. Through the driving action of the second correction mechanism 700, the punching die 300 is caused to rotate around the rotation axis to complete the angular position correction of the punching die 300 relative to the electrode strip 100. Furthermore, the fact that the second correction mechanism 700 is located on the first support 940 reduces the operating load on the second correction mechanism 700, making it easier for the second correction mechanism 700 to drive the punching die 300 to rotate, and thus lowering the performance requirements of the second correction mechanism 700.

[0045] The first linear drive component can be an electric cylinder, hydraulic cylinder, linear module, etc., and can control the first support 940 to move to any position along the second direction.

[0046] In this embodiment, the structure of the first linear drive component includes a first lead screw and a first motor 810. The length direction of the first lead screw extends along the second direction, and one end of the first lead screw is connected to the output shaft of the first motor 810 through a transmission structure such as a coupling. The first lead screw is threadedly connected to the first support 940. Specifically, the first support 940 may be provided with a nut seat, which is engaged with the first lead screw.

[0047] The automatic correction and cutting device also includes a fixed base 910. The fixed base 910 provides support for the first support 940, and its shape is not limited. The first support 940 is slidably connected to the fixed base 910 through a slider guide pair 930, so that the first support 940 can move relative to the fixed base 910 in a second direction.

[0048] It is understood that the first motor 810 can be a stepper motor or a servo motor. The first motor 810 is a reversible motor, capable of driving the first lead screw to rotate clockwise or counterclockwise. When the first motor 810 drives the first lead screw to rotate, the first support 940 will drive the second correction mechanism 700 and the punching die 300 to move along the extension direction of the first lead screw, thereby precisely adjusting the position of the punching die 300 in the second direction.

[0049] Of course, it is not ruled out that the punching die 300 may be mounted on the first support 940, and the first linear drive component and the first support 940 may be mounted on the output end of the second correction mechanism 700. In this case, the second correction mechanism 700 will drive the punching die 300 and the first correction mechanism 800 to rotate together during operation, which will increase the operating load of the second correction mechanism 700.

[0050] In some embodiments, such as Figures 4 to 6As shown, the second correction mechanism 700 includes a second support 920 and a second linear drive component.

[0051] The punching die 300 is disposed on the second support 920, which is located above the first support 940. The second support 920 can be mounted on the first support 940 via a rotating shaft, so that the second support 920 and the first support 940 can be rotatably connected, allowing the second support 920 and the punching die 300 to rotate relative to the first support 940 around the axis of rotation.

[0052] The second linear drive component is disposed on the first support 940. The output end of the second linear drive component is movably connected to the edge of the second support 920. When the second linear drive component is running, the output end of the second linear drive component can drive the second support 920 to rotate around the rotation axis.

[0053] The second linear drive component can be a hydraulic cylinder, an electric cylinder, a linear module, etc., and can control the output end of the second linear drive component to move to any position during linear motion.

[0054] It is understandable that, since the output end of the second linear drive component is movably connected to the edge of the second support 920, and the second support 920 is rotatably connected to the first support 940, when the output end of the second linear drive component performs linear motion, the second linear drive component and the first support 940 remain fixed, while the second support 920 is driven by the second linear drive component, thereby causing the punching die 300 to rotate relative to the first support 940 around the rotation axis.

[0055] Compared to the method of using a rotary drive component such as a motor to drive the shaft between the first support 940 and the second support 920 to rotate the second support 920, this embodiment adopts the above-described structural setting. According to the torque principle, the vertical distance between the force application point of the second linear drive component and the rotation axis of the second support 920 can be increased, thereby reducing the driving force of the second linear drive component on the second support 920. This helps to reduce the performance requirements of the second linear drive component and reduce the manufacturing cost of the automatic correction and cutting device.

[0056] In some embodiments, a pivot is provided between the first support 940 and the second support 920.

[0057] In other embodiments, the first support 940 is provided with a plurality of track blocks 780, which may be located below or above the first support 940. Each track block 780 is provided with an arc surface, the center of which is located on the rotation axis. Therefore, all the arc surfaces together form a track path, which may be circular. The center line of the track path extends in the vertical direction and coincides with the rotation axis.

[0058] Of course, the trajectory path can also be elliptical.

[0059] Furthermore, the second support 920 is provided with first rollers 790, which are located below the second support 920, and there are at least two first rollers 790. When the second support 920 rotates relative to the first support 940, all the first rollers 790 will roll along the track path.

[0060] It is understandable that when the second linear drive component is running, the second support 920 will be driven in the linear direction. Since the first roller 790 is in contact with the arc surface, the trajectory path restricts the linear movement of the second support 920. At this time, the first roller 790 will move along the trajectory path, so that the second support 920 can only rotate relative to the first support 940 around the rotation axis.

[0061] If one track block 780 is provided, the central angle of the arc surface of the track block 780 is greater than or equal to 180°, and the track block 780 can even be annular. Two first rollers 790 can be provided, and the two first rollers 790 can be symmetrically arranged on the arc surface of the track block 780. Furthermore, the two first rollers 790 can be spaced apart along the direction of movement of the output end of the second linear drive component. When the second linear drive component operates, it applies a force in the direction of movement to the second support 920, causing the second support 920 to tend to move linearly. At this time, the two first rollers 790 contact the arc surface, and the arc surface of the track block 780 resists the linear movement of one of the first rollers 790, causing the second support 920 to rotate.

[0062] If there are three track blocks 780, the three track blocks 780 are arranged in a circle around the axis of rotation, and each track block 780 can contact at least one first roller 790.

[0063] The first support 940 is provided with several support members 770, and the upper surface of each support member 770 is provided with multiple universal balls. The lower surface of the second support 920 is in contact with all the universal balls. The number of support members 770 can be selected according to the actual situation, and they can be arranged in an array. Of course, the support members 770 can also be in the shape of a circular plate.

[0064] Because a support member 770 with universal balls is provided between the first support 940 and the second support 920, when the second support 920 rotates relative to the first support 940, the universal balls on the support member 770 can not only effectively support the second support 920, but also roll relative to the second support 920, greatly reducing the friction between the second support 920 and the first support 940. This reduces the motion resistance experienced by the second support 920 during rotation, making it easier for the second linear drive component to drive the second support 920 to rotate. Consequently, a second linear drive component with lower output performance can be selected, reducing the cost of the second linear drive component.

[0065] It is understandable that, compared to using a large-diameter rotating shaft to connect the first support 940 and the second support 920, the above-described structural design in this embodiment makes the overall structure simpler, saves more materials, and reduces costs.

[0066] In some embodiments, the arc surface is located on the side of the track block 780 away from the axis of rotation.

[0067] In other embodiments, such as Figure 8 As shown, the arc surface is located on the side of the trajectory block 780 facing the axis of rotation.

[0068] Track blocks 780 are respectively arranged on opposite sides of the first support 940. The two track blocks 780 are symmetrically arranged about the rotation axis. Each track block 780 has two corresponding first rollers 790, and the two first rollers 790 are symmetrically arranged on the arc surface. Therefore, when the second support 920 is driven, each arc surface will resist the linear motion of one of the first rollers 790, causing the first roller 790 to move only clockwise or counterclockwise along the arc surface. With this arrangement, the second support 920 has four movement points on the track path, allowing the second support 920 to rotate stably and smoothly around the rotation axis.

[0069] In some embodiments, such as Figures 4 to 6 As shown, the structure of the second linear drive component includes a second lead screw 720, a second motor 710, a cam follower 740, and a moving block 730.

[0070] The second motor 710 is mounted on the first support 940. The output shaft of the second motor 710 is connected to one end of the second lead screw 720 via a transmission structure such as a coupling. The moving block 730 is provided with a threaded hole, through which the second lead screw 720 passes, thus threading the moving block 730 to the second lead screw 720. The second motor 710 can be a stepper motor or a servo motor, and it is a forward and reverse reversible motor. A cam follower 740 is disposed on the movable block 730, and the central axis of the cam follower 740 extends in the vertical direction. The cam follower 740 can be a deep groove ball bearing. In this embodiment, the lower end of the movable block 730 is threaded to the second lead screw 720, and the upper end of the movable block 730 is provided with the cam follower 740.

[0071] The second support 920 is provided with a sliding groove that extends radially along the second support 920. Specifically, the lower surface of the second support 920 is provided with two limiting blocks 921, which are spaced apart and together define the sliding groove. The cross-sectional shape of the sliding groove can be square or T-shaped. The sliding groove can be connected to the cam follower 740, and the outer peripheral wall of the cam follower 740 contacts the opposite side walls of the sliding groove.

[0072] When the second motor 710 is running, the second lead screw 720 rotates under the drive of the second motor 710. Since the cam follower 740 on the moving block 730 is connected to the slide groove of the second support 920, the moving block 730 can only move linearly along the extension direction of the second lead screw 720 during the rotation of the second lead screw 720. Since the first roller 790 of the second support 920 is restricted by the arc surface, the second support 920 can only rotate around the rotation axis. At this time, the cam follower 740 will roll in the slide groove and move along the extension direction of the slide groove, thereby realizing that the second linear drive component drives the second support 920 to rotate.

[0073] It is understandable that, compared to using a linkage mechanism to drive the second support 920 to rotate, this embodiment adopts the above-mentioned structural design. Since the correction angle for each rotation is small, the corresponding arc length is calculated according to the arc length calculation formula. The arc length is the linear movement distance of the moving block 730. Thus, the movement distance of the moving block 730 can be precisely controlled by the second motor 710 to complete the rotation correction work of the punching die 300.

[0074] In this embodiment, as Figures 4 to 8 As shown, the two ends of the second lead screw 720 extend along the second direction, and the first support 940 is provided with track blocks 780 on the opposite sides of the first direction. Each track block 780 is in contact with two first rollers 790. The arc surface is located on the side of the track block 780 near the axis of rotation. Each track block 780 can be divided into two symmetrically arranged limiting parts. There is a first roller 790 on the arc surface of each limiting part.

[0075] Furthermore, a third linear drive component 760 is provided on each of the opposite sides of the first support 940. The third linear drive component 760 can be located on both sides of the first support 940 in the first direction, or on both sides of the first support 940 in the second direction. The third linear drive component 760 can be a cylinder, an electric cylinder, a hydraulic cylinder, etc.

[0076] The output end of the third linear drive component 760 is provided with a pressing member 751. The pressing member 751 may be in the shape of a circular plate and is located above the second support 920. A pad, such as a rubber pad, may be provided on the lower surface of the pressing member 751. When the third linear drive component 760 is running, the output end of the third linear drive component 760 can drive the pressing member 751 to move downward and abut against the upper surface of the second support 920.

[0077] Furthermore, the output end of the third linear drive component 760 is also provided with a lifting member 752. The lifting member 752 is in the shape of a circular plate and is located below the pressing member 751. The lifting member 752 can abut against the lower surface of the second support 920.

[0078] Furthermore, the second support 920 is provided with an arc-shaped hole 922, the center of which is located on the rotation axis. The arc-shaped hole 922 penetrates the upper and lower surfaces of the second support 920. The third linear drive component 760 is a cylinder, and the cylinder's movable rod passes through the arc-shaped hole 922 and is fixedly connected to the pressing component 751.

[0079] Understandably, when the first linear drive component drives the first support 940 to move in the second direction, the punching die 300 is mounted on the second support 920. Between the second support 920 and the first support 940, there is a support member 770 with universal ball bearings, a first roller 790, a track block 780, and a cam follower 740. Due to the large inertia of the second support 920, the third linear drive component 760 drives the pressing member 751 to move downward, applying pressure to the second support 920. This increases the friction between the second support 920 and the support member 770, allowing the first support 940 to more easily drive the second support 920 to move in the second direction.

[0080] In addition, when the slide is a square groove, when the cam follower 740 needs maintenance or replacement, the third linear drive component 760 can be used to drive the lifting component 752 to move upward, thereby lifting the second support 920 and causing the cam follower 740 to move downward from the slide, making it convenient to disassemble and assemble the cam.

[0081] Of course, it cannot be ruled out that the second lead screw 720 may extend in the first direction.

[0082] In some embodiments, the upper mold assembly 310, the lower mold assembly 330, the first lifting component 500, and the second lifting component 600 all follow the second support 920 in linear motion and rotation.

[0083] In other embodiments, such as Figures 1 to 5 , Figure 7 and Figure 8 As shown, both the lower mold assembly 330 and the upper mold assembly 310 are slidably connected to the second support 920, so that the lower mold assembly 330 and the upper mold assembly 310 can move relative to the second support 920 in the vertical direction.

[0084] Specifically, the punching die 300 also includes a support platform 320, which is fixedly connected to the upper surface of the second support 920. The upper die assembly 310 is mounted on the support platform 320 via a buffer assembly, and the lower die assembly 330 is mounted on the support platform 320 via a buffer assembly. The buffer assembly consists of a guide post and a spring, with the guide post fixedly connected to the support platform 320 and the spring sleeved on the guide post. The support platform 320 is provided with a through hole so that the lower die assembly 330 can pass through the through hole and close with the upper die assembly 310.

[0085] When the lower mold assembly 330 and the upper mold assembly 310 approach each other to close the mold, both the lower mold assembly 330 and the upper mold assembly 310 are subjected to the elastic force from the spring. At this time, the spring plays a buffering role.

[0086] Understandably, the lower die assembly 330 includes a punch, and the upper die assembly 310 includes a die. The punch can work in conjunction with the die to stamp the electrode strip 100. Furthermore, the die is provided with a cutting blade in the circumferential direction, and the punch can also be provided with a cutting blade in the circumferential direction. The upper and lower cutting blades work together to cut the stamped electrode product.

[0087] Both the first support 940 and the second support 920 are provided with through holes. The shape and size of the through holes are such that the lower mold assembly 330 can pass through. Then, the lower mold assembly 330 can move downward, pass through the through holes and the through holes in sequence, and close with the upper mold assembly 310.

[0088] The output end of the first lifting component 500 is movably connected to the upper mold assembly 310 to drive the upper mold assembly 310 to move in the vertical direction. Furthermore, the upper mold assembly 310 can move relative to the first lifting component 500 in a second direction and rotate around a rotation axis. The output end of the second lifting component 600 is movably connected to the lower mold assembly 330 to drive the lower mold assembly 330 to move in the vertical direction. Furthermore, the lower mold assembly 330 can move relative to the second lifting component 600 in a second direction and rotate around a rotation axis.

[0089] The first lifting component 500 and the second lifting component 600 can be installed on the fixed base 910.

[0090] In this embodiment, both the output ends of the first lifting component 500 and the second lifting component 600 are provided with connecting blocks. The connecting blocks have circumferential surfaces, and their central axes extend along the vertical direction. The connecting blocks can be cylindrical. Both the lower mold assembly 330 and the upper mold assembly 310 are provided with slots that extend along a second direction. The cross-sectional shape of the slots can be T-shaped, and the circumferential surfaces of the connecting blocks can contact the opposite side walls of the slots.

[0091] The upper mold assembly 310 has a first slot 311, and the lower mold assembly 330 has a second slot 331. Both ends of the first slot 311 and the second slot 331 have openings so that the connecting block can be inserted.

[0092] Understandably, when the lower mold assembly 330, the upper mold assembly 310, and the support platform 320 all move along the second support 920 in the second direction, the first lifting component 500 and the second lifting component 600 remain fixed. At this time, the connecting block will move relative to the second support 920 in the second direction within the slot.

[0093] When the lower mold assembly 330, the upper mold assembly 310 and the support platform 320 all rotate around the rotation axis with the second support 920, the first lifting component 500 and the second lifting component 600 remain fixed. At this time, the connecting block will rotate relative to the second support 920 in the slot.

[0094] The above-described structural design in this embodiment can prevent the gravity of the first lifting component 500 and the second lifting component 600 from falling on the second support 920, thereby reducing the driving effect of the second linear drive component on the second support 920, making the second support 920 easier to rotate, and reducing the performance requirements of the second linear drive component.

[0095] In this embodiment, the structure of the second lifting component 600 includes a rotary drive, an eccentric cam, a rocker arm, a connecting rod, a second roller, and a base.

[0096] The rotary drive component is mounted on a base, which can be connected to a fixed base 910. The output end of the rotary drive component is fixedly connected to an eccentric cam to drive the eccentric cam to rotate. The rotary drive component can be a motor, which is connected to the eccentric cam through a transmission mechanism such as a reducer.

[0097] One end of the rocker arm is hinged to the base via a hinge shaft, and the other end of the rocker arm is hinged to one end of a connecting rod via a hinge shaft. The other end of the connecting rod is hinged to the lower part of the lower mold assembly 330 via a hinge shaft. The second roller is mounted on the rocker arm via a rotating shaft, and the second roller is located above the eccentric cam. The outer circumferential surface of the second roller is in contact with the outer circumferential surface of the eccentric cam. The central axes of the second roller and the eccentric cam both extend in the same horizontal direction.

[0098] In this embodiment, a lifting block is hinged to the other end of the connecting rod, and a connecting block that engages with the second slot 331 is provided at the upper end of the lifting block. The lifting block and the base are slidably connected up and down.

[0099] Understandably, when the motor drives the eccentric cam to rotate, since the outer circumferential surface of the second roller is always in contact with the outer circumferential surface of the eccentric cam, the eccentric cam will support the second roller and cause the second roller to roll along the outer circumferential surface of the eccentric cam, thereby causing the rocker arm to swing around its hinge axis with the base; during the swinging process, the connecting rod will drive the lower mold assembly 330 to move downward or upward under the driving action of the swing.

[0100] By adopting the above design, based on the lever principle, the operating load of the rotary drive components can be reduced.

[0101] In some embodiments, the lower mold assembly 330 is provided with a blanking fixture, which is equipped with a honeycomb suction cup. The honeycomb suction cup is used to adsorb the finished electrode sheet.

[0102] Understandably, after the punching process is completed, the lower die assembly 330 uses vacuum adsorption to fix the finished electrode sheet, allowing it to move downwards to the unloading station. An external robotic arm can then be used to pick up the electrode sheet.

[0103] Furthermore, the unloading fixture can be separated from the lower mold assembly 330, for example, by using a clamp or magnetic force to fix the unloading fixture to the lower mold assembly 330. During unloading, the clamping or magnetic force is released so that an external robot can directly grasp the unloading fixture.

[0104] In some embodiments, such as Figure 1 , Figure 3 and Figure 9 As shown, the automatic correction and cutting device also includes a collection box 420 and a waste cutting mechanism 410.

[0105] The material channel has an inlet at one end in the first direction and an outlet at the opposite end in the first direction. A waste cutting mechanism 410 is located at the outlet and has a waste outlet. A collection box 420 is located below the waste cutting mechanism 410 and has a collection port with its opening facing upwards. The collection port is connected to the waste outlet. Specifically, the waste outlet is located above the collection port, and the collection port is connected to a collection pipe 430 with its opening facing upwards and connected to the waste outlet. The waste cutting mechanism 410 cuts the punched electrode strip 100, and the collection box 420 is used to recycle the waste. The cut waste falls into the collection box 420 through the waste outlet and the collection port in sequence. Because the long electrode strip 100 is cut into small pieces, the collection box 420 can hold more waste.

[0106] In this embodiment, the waste cutting mechanism 410 includes a third support, a conveying roller assembly, a fourth linear drive component 416, and a cutter 415.

[0107] The third support is equipped with a waste channel that extends vertically, with the upper end of the waste channel being the waste inlet and the lower end being the waste outlet.

[0108] The conveyor roller assembly is located above the waste channel. The conveyor roller assembly is provided with a feed channel that extends vertically and is connected to the waste channel.

[0109] The fourth linear drive component 416 can be mounted on the third support. The output end of the fourth linear drive component 416 is fixedly connected to the cutter 415. The fourth linear drive component 416 can drive the cutter 415 to enter and exit the waste channel along the first direction. The fourth linear drive component 416 can be an electric cylinder, a pneumatic cylinder, a hydraulic cylinder, etc.

[0110] In this embodiment, the third support is provided with two stops 417, which are spaced apart along the first direction and together define the waste channel. Moreover, the stops 417 are provided with openings so that the cutter 415 can enter the waste channel through the openings to cut the long electrode strip 100.

[0111] Understandably, the electrode strip 100 exiting the discharge port changes direction via the feed channel of the conveyor roller assembly and moves downwards into the waste channel. For example... Figure 9 As shown in the figure, the arrows indicate the direction of movement of the electrode strip 100 located in the waste channel.

[0112] In this embodiment, the conveyor roller assembly includes a fifth linear drive component 414, a rotary drive component, a drive roller 412, and a driven roller 413.

[0113] Both the driving roller 412 and the driven roller 413 extend along the second direction, and are arranged at certain intervals along the first direction, so that they together define the feed channel. The driving roller 412 and the driven roller 413 can be mounted on a third support via bearing seats.

[0114] The driving roller 412 is located between the driven roller 413 and the discharge port. The rotary drive component is mounted on the third support, and its output end is connected to the driving roller 412 to drive the driving roller 412 to rotate, causing the electrode strip 100 to move continuously downward under the conveying action of the driving roller 412. Specifically, the rotary drive component is a third motor 411, and the output shaft of the third motor 411 can be connected to the driving roller 412 through a transmission structure such as a belt drive structure or a gear drive structure.

[0115] The fifth linear drive component 414 can be fixedly connected to the third support. The output end of the fifth linear drive component 414 is fixedly connected to the driven roller 413. The fifth linear drive component 414 can drive the driven roller 413 to move along the first direction, thereby adjusting the distance between the driven roller 413 and the driving roller 412, allowing the electrode strip 100 to pass through the feeding channel. The fifth linear drive component 414 can be a linear drive device such as a hydraulic cylinder, pneumatic cylinder, or electric cylinder.

[0116] In some embodiments, such as Figure 1 and Figure 2 As shown, the automatic correction and cutting device also includes a conveying mechanism 200. The conveying mechanism 200 is located at the feed inlet to continuously feed the electrode strip 100 to the material channel.

[0117] The conveying mechanism 200 includes a conveying roller 210, a pressure roller 220, and a rotary drive component.

[0118] The conveyor roller 210 and the pressure roller 220 can be mounted on the fixed base 910 through the bearing seat. The conveyor roller 210 is located below the pressure roller 220. The conveyor roller 210 and the pressure roller 220 cooperate with each other and can contact the upper and lower surfaces of the electrode material strip 100 respectively. The pressure roller 220 presses the electrode material strip 100 against the conveyor roller 210, so that the electrode material strip 100 moves to the material channel under the conveying action of the conveyor roller 210.

[0119] The rotary drive component can be a motor, which can be connected to the conveyor roller 210 via a coupling.

[0120] Furthermore, the structure of the conveying mechanism 200 also includes a sixth linear drive component, the output end of which is connected to the lower pressure roller 220 to drive the lower pressure roller 220 to move in the vertical direction.

[0121] After the sixth driving component drives the lower pressure roller 220 to move downward, the lower pressure roller 220 will abut against the upper surface of the electrode strip 100 and apply pressure to the electrode strip 100, so that the lower surface of the electrode strip 100 is always in contact with the conveyor roller 210.

[0122] The preferred embodiments of the present invention have been described in detail above, but the present invention is not limited to the embodiments described. Those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present invention, and these equivalent modifications or substitutions are all included within the scope defined by the claims of this application.

Claims

1. An automatic deviation correction cutting device, characterized in that, include: A punching die, the punching die including an upper die assembly and a lower die assembly, the upper die assembly and the lower die assembly being able to approach or move away from each other, the upper die assembly and the lower die assembly jointly defining a material channel extending along a first direction, the material channel being provided with a punching station; The first correction mechanism is used to drive the punching die to move along the second direction, and the first direction, the second direction and the up and down direction are perpendicular to each other; The second correction mechanism is used to drive the punching die to rotate around the center of the upper die assembly; The punching die has a rotation axis extending in the vertical direction. The first correction mechanism includes a first linear drive component and a first support. The output end of the first linear drive component is connected to the first support to drive the first support to move in the second direction. The second correction mechanism is disposed on the first support. The output end of the second correction mechanism is connected to the punching die to drive the punching die to rotate around the rotation axis. The second correction mechanism includes a second linear drive component and a second support. The punching die is disposed on the second support, which is located above the first support and rotatably connected to the first support. The second linear drive component is disposed on the first support, and its output end is movably connected to the edge of the second support to drive the second support to rotate around the rotation axis.

2. The automatic deviation correction and cutting device according to claim 1, characterized in that, The first support is provided with a plurality of track blocks, each track block having an arc surface, the center of the arc surface being located on the rotation axis, and all the arc surfaces together forming a track path. The second support is provided with at least two first rollers, and when the second support rotates relative to the first support, all the first rollers roll along the track path.

3. The automatic deviation correction and cutting device according to claim 2, characterized in that, The first support is provided with a support member, and the support member is provided with a plurality of universal ball bearings. The second support is in contact with all of the universal ball bearings.

4. The automatic deviation correction and cutting device according to claim 2, characterized in that, The arc surface is located on the side of the track block facing the axis of rotation. The track blocks are provided on opposite sides of the first support. Each track block is provided with two first rollers. The two first rollers are symmetrically arranged on the arc surface.

5. The automatic deviation correction and cutting device according to claim 2, characterized in that, The second linear drive component includes a second motor, a second lead screw, a moving block, and a cam follower. The output shaft of the second motor is connected to the second lead screw via a transmission. The moving block is threadedly connected to the second lead screw. The cam follower is disposed on the moving block. The central axis of the cam follower extends in the vertical direction. The second support is provided with a sliding groove that cooperates with the cam follower. The sliding groove extends radially along the second support.

6. The automatic deviation correction and cutting device according to claim 5, characterized in that, The second lead screw extends along the second direction, and the first support is provided with the track blocks on opposite sides in the first direction. The first support is provided with the third linear drive component on opposite sides. The output end of the third linear drive component is provided with a pressing member. The pressing member is located above the second support. The third linear drive component can drive the pressing member to move downward and abut against the second support.

7. The automatic deviation correction and cutting device according to claim 1, characterized in that, It also includes a fixed base, the first support is slidably connected to the fixed base in a second direction, the first linear drive component includes a first motor and a first lead screw, the output shaft of the first motor is drivenly connected to the first lead screw, the first lead screw extends in a second direction and is threadedly connected to the first support.

8. The automatic deviation correction and cutting device according to claim 1, characterized in that, It also includes a first lifting component and a second lifting component. The upper mold assembly and the lower mold assembly are both slidably connected to the second support. The first support and the second support are both provided with through holes for the lower mold assembly to pass through. The output end of the first lifting component is movably connected to the upper mold assembly to drive the upper mold assembly to move up and down. The upper mold assembly can move relative to the first lifting component along a second direction and rotate around the rotation axis. The output end of the second lifting component is movably connected to the lower mold assembly to drive the lower mold assembly to move up and down. The lower mold assembly can move relative to the second lifting component along a second direction and rotate around the rotation axis.

9. The automatic deviation correction and cutting device according to claim 8, characterized in that, Both the upper mold assembly and the lower mold assembly are provided with slots extending along the second direction. Both the output end of the first lifting component and the output end of the second lifting component are provided with connecting blocks. The connecting blocks have circumferential surfaces that contact the opposite side walls of the slots.

10. The automatic deviation correction and cutting device according to claim 8, characterized in that, The second lifting component includes a base, a rotary drive, an eccentric cam, a rocker arm, a second roller, and a connecting rod. The rotary drive is located on the base, and its output end is connected to the eccentric cam. One end of the rocker arm is hinged to the base, and the other end is hinged to one end of the connecting rod. The other end of the connecting rod is hinged to the lower mold assembly. The second roller is located on the rocker arm, and its outer peripheral surface contacts the outer peripheral surface of the eccentric cam.

11. The automatic deviation correction and cutting device according to claim 1, characterized in that, The lower mold assembly is equipped with a feeding fixture, which is equipped with a honeycomb suction cup for adsorbing the electrode sheet.

12. The automatic deviation correction and cutting device according to claim 1, characterized in that, It also includes a waste cutting mechanism and a collection box. The material channel has an inlet and an outlet at opposite ends in the first direction. The waste cutting mechanism is located at the outlet. The collection box has an upward-facing collection port. The waste cutting mechanism has a waste outlet, and the waste outlet is connected to the collection port.

13. The automatic deviation correction and cutting device according to claim 12, characterized in that, The waste cutting mechanism includes a third support, a fourth linear drive component, a cutter, and a conveying roller assembly. The third support has a waste channel extending vertically. The output end of the fourth linear drive component is connected to the cutter to drive the cutter to enter and exit the waste channel in a first direction. The conveying roller assembly is located above the waste channel and has a feed channel extending vertically. The feed channel is connected to the upper end of the waste channel, and the lower end of the waste channel is the waste outlet.

14. The automatic deviation correction and cutting device according to claim 13, characterized in that, The conveying roller assembly includes a driving roller, a driven roller, and a fifth linear drive component. The driving roller and the driven roller extend along a second direction and are spaced apart along a first direction, together defining the feed channel. The output end of the fifth linear drive component is connected to the driven roller to drive the driven roller to move along the first direction.

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