Pole piece etching scribing equipment and production line

Abstract

The utility model provides a pole piece etching scribing device and a production line, and relates to the technical field of batteries. The pole piece etching and scribing equipment comprises a traction mechanism, at least one etching mechanism and a deviation rectifying mechanism, the deviation rectifying mechanism and the etching mechanism are correspondingly arranged, the deviation rectifying mechanism is located on the feeding side of the corresponding etching mechanism, the deviation rectifying mechanism comprises a deviation rectifying roller and a rotating driving part, the deviation rectifying roller is rotationally arranged at the driving end of the rotating driving part, and the rotating direction of the rotating driving part is perpendicular to the axis direction of the deviation rectifying roller and is perpendicular to the connecting line direction of the deviation rectifying mechanism and the etching mechanism. When the pole piece generates position deviation in the width direction, the rotary driving piece drives the deviation correcting roller to rotate in the direction opposite to the deflection direction of the pole piece, the pole piece is guided to deflect towards one side of the width direction of the pole piece, so that the position deviation of the pole piece is eliminated, and the pole piece is accurately conveyed to the etching mechanism; therefore, the pole piece is ensured to have enough tape walking positioning precision in the etching and scribing process, and the position precision of etching and scribing is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of batteries, in particular to a pole piece etching and scribing device and a production line. Background Art

[0002] With the rapid development of society, people have put forward higher and higher requirements for battery life. Whether it is the battery life of 3C batteries or the battery life of power batteries, they have become important performance indicators when people choose related products. At present, in the manufacturing process of 3C batteries and power batteries, the improvement of battery energy density has reached a certain height. It is becoming increasingly difficult to continuously improve battery life in a limited volume.

[0003] In order to improve the battery life, a feasible method is to etch and mark the coating on the positive and negative sides of the battery. This process can speed up the infiltration, improve the battery's charging capacity, shorten the formation time, and improve the battery performance, thereby improving the battery's life.

[0004] However, the existing equipment does not have sufficient positional accuracy in etching and scribing the pole piece. Utility Model Content

[0005] In order to solve the problems existing in the prior art, one of the purposes of the utility model is to provide a pole piece etching and scribing device.

[0006] The utility model provides the following technical solutions:

[0007] A pole piece etching and scribing device, comprising:

[0008] A traction mechanism for conveying pole pieces;

[0009] at least one etching mechanism; and

[0010] A deflection correction mechanism is arranged corresponding to the etching mechanism and is located at the feeding side of the corresponding etching mechanism, the deflection correction mechanism comprises a deflection correction roller and a rotating driving member, the deflection correction roller is rotatably arranged at the driving end of the rotating driving member, and the rotating direction of the rotating driving member is perpendicular to the axial direction of the deflection correction roller and perpendicular to the connecting direction of the deflection correction mechanism and the etching mechanism;

[0011] Wherein, the rotary drive member is used to drive the deviation-correcting roller to rotate in a direction opposite to the deflection direction of the pole piece.

[0012] As a further optional solution for the pole piece etching and scribing equipment, the pole piece etching and scribing equipment also includes a first detection mechanism and a second detection mechanism, the first detection mechanism is used to detect the scratch position of the pole piece, and the second detection mechanism is used to detect the scratch width and scratch depth of the pole piece.

[0013] As a further optional solution for the pole piece etching and scribing equipment, the first detection mechanism includes an adjustment slide, a camera assembly and a light source, the camera assembly is arranged at the sliding end of the adjustment slide, and the shooting area of ​​the camera assembly and the irradiation area of ​​the light source simultaneously cover the pole piece.

[0014] As a further optional solution for the electrode etching and scribing device, the second detection mechanism includes a linear module, a sensor adjustment assembly and a sensor, the driving end of the linear module is connected to the sensor adjustment assembly, and the sensor is arranged in the sensor adjustment assembly.

[0015] As a further optional solution to the electrode piece etching and scribing device, the electrode piece etching and scribing device further comprises a belt pressing mechanism, and the belt pressing mechanism is located at the feeding side of the second detection mechanism;

[0016] The belt pressing mechanism includes a belt pressing platform, a first belt pressing member and a first belt pressing driving member. The first belt pressing driving member is arranged on the belt pressing platform. The driving end of the first belt pressing driving member is connected to the first belt pressing member to drive the first belt pressing member to approach or move away from the belt pressing platform.

[0017] As a further optional solution to the pole piece etching and scribing device, the pole piece etching and scribing device further comprises at least one buffer mechanism, and at least one of the buffer mechanisms is located at the feed side of the belt pressing mechanism;

[0018] The cache mechanism includes a first cache roller, a second cache roller and a cache driving member, wherein the second cache rollers are arranged in pairs on both sides of the first cache roller, and the driving end of the cache driving member is connected to the first cache roller to drive the first cache roller to translate relative to the second cache roller.

[0019] As a further optional solution to the pole piece etching and scribing device, the pole piece etching and scribing device further includes an unwinding mechanism, and the unwinding mechanism includes an unwinding shaft, an unwinding driving member, a first deviation correction push plate and a first pushing member;

[0020] The unwinding shaft is connected to the driving end of the unwinding driving member, the first deviation-correcting push plate is connected to the driving end of the first pushing member, and the pushing direction of the first pushing member is parallel to the axial direction of the unwinding shaft.

[0021] As a further optional solution to the electrode piece etching and scribing device, the electrode piece etching and scribing device further includes a tape connection mechanism, and the tape connection mechanism is located at the discharge side of the unwinding mechanism;

[0022] The belt connecting mechanism includes a belt connecting platform, a second belt pressing member and a second belt pressing driving member, the second belt pressing members are arranged in pairs, the second belt pressing driving member is arranged corresponding to the second belt pressing member, the second belt pressing driving member is arranged on the belt connecting platform, and the driving end of the second belt pressing driving member is connected to the corresponding second belt pressing member to drive the second belt pressing member to approach or move away from the belt connecting platform.

[0023] As a further optional solution for the electrode piece etching and scribing device, a slag dropping groove is provided on the tape connection platform, and the slag dropping groove is located between the second tape pressing members arranged in pairs;

[0024] The belt connection mechanism also includes a powder receiving box, and the powder receiving box is located below the slag dropping trough.

[0025] As a further optional solution to the electrode piece etching and scribing device, the electrode piece etching and scribing device further includes a tension detection mechanism and an unwinding tension adjustment mechanism sequentially arranged on the discharge side of the unwinding mechanism;

[0026] The tension detection mechanism includes a tension sensor and a tension roller rotatably arranged on the tension sensor, and the tension sensor is electrically connected to the unwinding tension adjustment mechanism.

[0027] As a further optional solution for the pole piece etching and scribing device, the unwinding tension adjustment mechanism includes a torsion drive and at least two first adjustment rollers, the torsion drive is electrically connected to the tension sensor, and the at least two first adjustment rollers are both arranged at the driving end of the torsion drive.

[0028] As a further optional solution to the pole piece etching and scribing device, the pole piece etching and scribing device further includes a winding mechanism, and the winding mechanism includes a winding shaft, a winding driving member, a second deviation correction push plate and a second push member;

[0029] The winding shaft is connected to the driving end of the winding driving member, the second deviation-correcting push plate is connected to the driving end of the second pushing member, and the pushing direction of the second pushing member is parallel to the axial direction of the winding shaft.

[0030] As a further optional solution for the pole piece etching and scribing device, the winding mechanism also includes a smoothing component, which includes a rotatably arranged swing arm and a smoothing roller arranged on the swing arm, the axial direction of the smoothing roller is parallel to the axial direction of the winding shaft, and the smoothing roller is higher than the winding shaft.

[0031] As a further optional solution to the electrode piece etching and scribing device, the electrode piece etching and scribing device further comprises a winding tension adjustment mechanism arranged on the feeding side of the winding mechanism;

[0032] The winding tension adjustment mechanism comprises a second adjustment roller, a third adjustment roller and a tension adjustment driving member, wherein the tension adjustment driving member is connected to the second adjustment roller and is used to drive the second adjustment roller to translate relative to the third adjustment roller.

[0033] As a further optional solution for the electrode etching and scribing equipment, the electrode etching and scribing equipment also includes a brush dust removal mechanism and an air knife dust removal mechanism, the brush dust removal mechanism is arranged on the feed side of the etching mechanism, and the air knife dust removal mechanism is arranged on the discharge side of the etching mechanism.

[0034] As a further optional solution for the electrode etching and scribing equipment, the brush dust removal mechanism includes a brush assembly, a first dust suction pipe and a first air knife assembly, the brush assembly includes two brush rollers which are parallel to each other and can rotate in opposite directions, and the air outlet of the first air knife assembly is arranged toward the brush roller.

[0035] As a further optional solution for the electrode piece etching and scribing equipment, the wind knife dust removal mechanism includes a second wind knife assembly, an anti-overflow plate and a second dust suction pipe. The second wind knife assembly is arranged opposite to the anti-overflow plate. A dust removal area is formed between the second wind knife assembly and the anti-overflow plate through which the electrode piece can pass.

[0036] As a further optional solution for the pole piece etching and marking device, the pole piece etching and marking device also includes a coding mechanism, which includes an encoder, an encoding roller and an encoding driven roller, the output end of the encoder is connected to the encoding roller, and the encoding driven roller is used to hold the pole piece against the encoding roller.

[0037] Another object of the utility model is to provide a production line.

[0038] The utility model provides the following technical solutions:

[0039] A production line comprises the above-mentioned electrode etching and scribing equipment.

[0040] The embodiments of the present invention have the following beneficial effects:

[0041] When the above-mentioned electrode etching and marking equipment is working, the traction mechanism transports the electrode so that the electrode passes through at least one etching mechanism, and the etching mechanism etches and marks the electrode. Before etching and marking, the electrode first passes through the correction mechanism corresponding to the etching mechanism and bypasses the correction roller. When the electrode has a position deviation along the width direction, the rotating drive member drives the correction roller to rotate in the direction opposite to the deflection direction of the electrode, guiding the electrode to deflect to one side of its own width direction to eliminate the position deviation of the electrode, accurately transport the electrode to the etching mechanism, ensure that the electrode has sufficient tape positioning accuracy during the etching and marking process, and thus improve the position accuracy of etching and marking.

[0042] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and understandable, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0044] Figure 1 The overall structural diagram of a pole piece etching and scribing device provided by an embodiment of the utility model is shown;

[0045] Figure 2 A schematic diagram of the structure of a deviation correction mechanism in a pole piece etching and scribing device provided by an embodiment of the utility model is shown;

[0046] Figure 3 A schematic diagram of the structure of a traction mechanism in a pole piece etching and scribing device provided by an embodiment of the utility model is shown;

[0047] Figure 4 A schematic structural diagram of an etching mechanism in a pole piece etching and scribing device provided by an embodiment of the utility model is shown;

[0048] Figure 5 A schematic structural diagram of an unwinding mechanism in a pole piece etching and scribing device provided by an embodiment of the utility model is shown;

[0049] Figure 6 A schematic structural diagram of a tape connection mechanism in a pole piece etching and scribing device provided by an embodiment of the utility model is shown;

[0050] Figure 7 A schematic structural diagram of a tension detection mechanism in a pole piece etching and scribing device provided by an embodiment of the utility model is shown;

[0051] Figure 8 A schematic diagram of the structure of an unwinding tension adjustment mechanism in a pole piece etching and scribing device provided by an embodiment of the utility model is shown;

[0052] Fig. 9 A schematic diagram of the structure of a brush dust removal mechanism in a pole piece etching and scribing device provided by an embodiment of the utility model is shown;

[0053] Fig.10A schematic diagram of the structure of a wind knife dust removal mechanism in a pole piece etching and scribing device provided by an embodiment of the utility model is shown;

[0054] Fig.11 A schematic diagram of the structure of an encoding mechanism in a pole piece etching and scribing device provided by an embodiment of the utility model is shown;

[0055] Fig.12 A schematic diagram of the structure of a first detection mechanism in a pole piece etching and scribing device provided by an embodiment of the utility model is shown;

[0056] Fig.13 A schematic diagram of the structure of a second detection mechanism in a pole piece etching and scribing device provided by an embodiment of the utility model is shown;

[0057] Fig.14 A schematic structural diagram of a belt pressing mechanism in a pole piece etching and scribing device provided by an embodiment of the utility model is shown;

[0058] Fig.15 A schematic diagram of the structure of a buffer mechanism in a pole piece etching and scribing device provided by an embodiment of the utility model is shown;

[0059] Fig.16 A structural schematic diagram of a labeling mechanism in a pole piece etching and scribing device provided by an embodiment of the utility model is shown;

[0060] Fig.17 A schematic structural diagram of a winding mechanism in a pole piece etching and scribing device provided by an embodiment of the utility model is shown;

[0061] Fig.18 A schematic diagram of the structure of a winding tension adjustment mechanism in a pole piece etching and scribing device provided by an embodiment of the utility model is shown;

[0062] Fig.19 A structural schematic diagram of a movable control screen mechanism in a pole piece etching and scribing device provided by an embodiment of the utility model is shown.

[0063] Description of main component symbols:

[0064] 010-traction mechanism; 011-first base; 012-first motor; 013-traction roller; 014-first cylinder; 015-first driven roller; 020-etching mechanism; 021-back plate; 022-up and down adjustment component; 023-front and rear adjustment component; 024-laser component; 025-first dust cover; 026-dust suction component; 030-correction mechanism; 031-correction roller; 032-rotation drive member; 033-control panel; 034-correction seat; 040-frame; 050-unwinding mechanism; 051-second base; 052-unwinding shaft; 053-unwinding drive member; 054-first correction push plate; 055-first push member; 056-first mounting plate; 060-belt connection mechanism; 06 1-belt connection platform; 062-second belt pressing member; 063-second belt pressing driving member; 064-powder receiving box; 065-positioning block; 070-tension detection mechanism; 071-tension sensor; 072-tension roller; 080-unwinding tension adjustment mechanism; 081-third base; 082-torsion driving member; 083-second mounting plate; 090-brush dust removal mechanism; 091-fourth base; 092-brush assembly; 093-first dust suction pipe; 094-second dust cover; 095-anti-shake roller; 096-first air knife assembly; 097-adjusting cylinder; 100-air knife dust removal mechanism; 101-fifth base; 102-second air knife assembly; 103-anti-overflow plate; 104-second dust suction pipe; 105-third dust cover cover; 110-encoding mechanism; 111-sixth base; 112-encoder; 113-encoding roller; 114-second cylinder; 115-encoding driven roller; 120-first detection mechanism; 121-seventh base; 122-adjustment slide; 123-camera assembly; 124-light source; 125-fourth dust cover; 130-second detection mechanism; 131-eighth base; 132-linear module; 133-sensor adjustment assembly; 134-sensor; 140-belt pressing mechanism; 141-belt pressing platform; 142-first belt pressing member; 143-first belt pressing driving member; 150-cache mechanism; 151-third mounting plate; 152-cache driving member; 153-first linear motion assembly; 154-first limit sensor 160-labeling mechanism; 161-ninth base; 162-sliding rod; 163-position adjustment block; 164-adjusting plate; 165-patch machine; 170-rewinding mechanism; 171-tenth base; 172-rewinding shaft; 173-rewinding drive member; 174-second deviation correction push plate; 175-second push member; 176-fourth mounting plate; 177-smoothing assembly; 177a-swing arm; 177b-smoothing roller; 178-lifting assembly; 180-rewinding tension adjustment mechanism; 181-fifth mounting plate; 182-tension adjustment drive member; 183-second linear motion assembly; 184-second limit sensor; 190-movable control screen mechanism; 191-third linear motion assembly; 192-cantilever assembly;193-Control panel assembly. ; DETAILED DESCRIPTION

[0065] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0066] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. In contrast, when an element is referred to as being "directly on" another element, there is no intermediate element. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0067] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0068] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0069] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used in the specification of the template herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0070] Example

[0071] See also Figure 1This embodiment provides a pole piece etching and marking device for etching and marking a pole piece. The pole piece etching and marking device includes a traction mechanism 010, at least one etching mechanism 020, and a correction mechanism 030 corresponding to the etching mechanism 020.

[0072] The traction mechanism 010 is used to transport the electrode piece so that the electrode piece passes through the etching mechanism 020, and the etching mechanism 020 etches and marks the electrode piece.

[0073] See also Figure 2 Correspondingly, the deflection correction mechanism 030 is located at the feeding side of the corresponding etching mechanism 020 , and the deflection correction mechanism 030 includes a deflection correction roller 031 and a rotating driving member 032 .

[0074] The deflection correction roller 031 is arranged to rotate around its own axis at the driving end of the rotary driving member 032 . The rotation direction of the rotary driving member 032 is perpendicular to the axis of the deflection correction roller 031 and perpendicular to the connection direction of the deflection correction mechanism 030 and the etching mechanism 020 .

[0075] The axial direction of the deflection correction roller 031 is the width direction of the pole piece, and the connection direction of the deflection correction mechanism 030 and the etching mechanism 020 is the length direction of the pole piece. The rotation direction of the rotary drive member 032 is perpendicular to both the width direction and the length direction of the pole piece, that is, perpendicular to the pole piece located between the deflection correction mechanism 030 and the etching mechanism 020.

[0076] In addition, the rotary drive member 032 is used to drive the deviation correction roller 031 to rotate in a direction opposite to the deflection direction of the pole piece.

[0077] Before etching and scribing, the pole piece first passes through the deflection correction mechanism 030 corresponding to the etching mechanism 020, and bypasses the deflection correction roller 031. The deflection correction roller 031 rotates around its own axis on the driving end of the rotating drive member 032, and there is rolling friction between the pole piece and the pole piece. When the pole piece has a position deviation along the width direction, the rotating drive member 032 drives the deflection correction roller 031 to rotate in the direction opposite to the deflection direction of the pole piece, and guides the pole piece to deflect to one side of its own width direction to eliminate the position deviation of the pole piece, and accurately transport the pole piece to the etching mechanism 020, so as to ensure that the pole piece has sufficient tape positioning accuracy during the etching and scribing process, thereby improving the position accuracy of the etching and scribing.

[0078] Optionally, the pole piece between the deviation correcting mechanism 030 and the etching mechanism 020 is in a horizontal state, and the rotation direction of the rotary driving member 032 is a vertical direction.

[0079] For example, in a top view, when the pole piece deflects in the clockwise direction and generates a position deviation, the rotary drive member 032 drives the correction roller 031 to rotate in the counterclockwise direction to eliminate the position deviation of the pole piece. When the pole piece deflects in the counterclockwise direction and generates a position deviation, the rotary drive member 032 drives the correction roller 031 to rotate in the clockwise direction to eliminate the position deviation of the pole piece.

[0080] In some specific embodiments, the deflection correction mechanism 030 further includes a control panel 033 and a deflection correction seat 034. The rotation drive member 032 and the control panel 033 are both disposed on the deflection correction seat 034, and the control panel 033 is electrically connected to the rotation drive member 032 to control the rotation drive member 032.

[0081] In this embodiment, the electrode etching and scribing equipment further includes a frame 040 , and the traction mechanism 010 , the etching mechanism 020 and the deviation correction mechanism 030 are all arranged on the frame 040 .

[0082] See also Figure 3 Specifically, the traction mechanism 010 is composed of a first base 011, a first motor 012, a traction roller 013, a first cylinder 014 and a first driven roller 015.

[0083] The first base 011 is fixedly arranged on the frame 040, and the first motor 012 and the first cylinder 014 are both bolted and fixed on the first base 011. The traction roller 013 is rotatably arranged on the first base 011 around its own axis direction, and is connected to the shaft of the first motor 012 through a coupling, and rotates under the drive of the first motor 012. The axis direction of the first driven roller 015 is parallel to the axis direction of the traction roller 013, and the first driven roller 015 is rotatably arranged on the piston rod of the first cylinder 014 around its own axis direction, and approaches or moves away from the traction roller 013 under the drive of the first cylinder 014.

[0084] When in use, the pole piece passes between the traction roller 013 and the first driven roller 015. The piston rod of the first cylinder 014 extends to make the first driven roller 015 approach the traction roller 013 until the first driven roller 015 passes through the pole piece and abuts against the traction roller 013, so that there is sufficient pressure and maximum static friction between the pole piece and the traction roller 013. At this time, the first motor 012 drives the traction roller 013 to rotate, which can pull the pole piece to move, thereby transporting the pole piece.

[0085] Optionally, the first motor 012 is a servo motor.

[0086] See also Figure 4Specifically, the etching mechanism 020 adopts a laser etching mechanism 020, which is composed of a back plate 021, an up and down adjustment component 022, a front and back adjustment component 023, a laser component 024, a first dust cover 025 and a dust suction component 026, and performs laser etching and marking on the pole piece.

[0087] Among them, the back plate 021 and the first dust cover 025 are fixedly set on the frame 040, and the first dust cover 025 is arranged outside the up and down adjustment component 022, the front and rear adjustment component 023, the laser component 024 and the dust suction component 026, so as to gather the dust generated during the etching and scribing process into a smaller space, so that the dust suction component 026 can better suck away the dust.

[0088] The up-and-down adjustment component 022 is installed on the back plate 021 , the front-and-back adjustment component 023 is installed on the adjustment end of the up-and-down adjustment component 022 , and the laser component 024 is installed on the adjustment end of the front-and-back adjustment component 023 .

[0089] Taking the perspective of the figure as an example, when in use, the pole piece passes from left to right under the laser assembly 024. The up-down adjustment assembly 022 drives the front-back adjustment assembly 023 and the laser assembly 024 to move up and down, and adjusts the distance between the laser assembly 024 and the pole piece. The front-back adjustment assembly 023 drives the laser assembly 024 to move forward and backward, and adjusts the position of the laser assembly 024 along the width direction of the pole piece. Finally, the laser beam emitted by the laser assembly 024 etches and marks the pole piece.

[0090] Optionally, both the up-and-down adjustment component 022 and the front-and-rear adjustment component 023 use servo modules.

[0091] In this embodiment, there are two etching mechanisms 020. One etching mechanism 020 etches and marks the A surface of the electrode piece, and the other etching mechanism 020 etches and marks the B surface of the electrode piece. The A surface and the B surface are two surfaces of the electrode piece along the thickness direction.

[0092] Furthermore, in some embodiments, the electrode sheet etching and scribing equipment further includes an unwinding mechanism 050, which can realize automatic unwinding and loading of rolled electrode sheet raw materials.

[0093] See also Figure 5 Specifically, the unwinding mechanism 050 includes a second base 051, an unwinding shaft 052, an unwinding driving member 053, a first deviation-correcting push plate 054 and a first pushing member 055.

[0094] The second base 051 is fixedly arranged on the frame 040, and the unwinding driving member 053 and the first pushing member 055 are both bolted and fixed on the second base 051. The unwinding shaft 052 is rotatably arranged on the second base 051 around its own axial direction, and is connected to the driving end of the unwinding driving member 053, and rotates under the drive of the unwinding driving member 053. The first deviation correction push plate 054 is slidably arranged on the second base 051 along the axial direction of the unwinding shaft 052, and is connected to the driving end of the first pushing member 055. Accordingly, the pushing direction of the first pushing member 055 is parallel to the axial direction of the unwinding shaft 052.

[0095] When in use, the rolled electrode material is sleeved on the unwinding shaft 052, and the width direction of the electrode is parallel to the axis direction of the unwinding shaft 052. The unwinding driving member 053 drives the unwinding shaft 052 to rotate and automatically unwind the electrode. At the same time, the first pushing member 055 pushes the first deviation correction push plate 054 to slide along the axis direction of the unwinding shaft 052 and abut against one side of the electrode along the width direction, adjusts the position of the electrode along the width direction, and realizes automatic deviation correction during the unwinding process.

[0096] Optionally, the unwinding shaft 052 is an inflatable shaft, which can expand after the rolled electrode material is inserted and remain relatively fixed with the rolled electrode material. The unwinding drive member 053 adopts a servo motor, and its shaft is connected to one end of the unwinding shaft 052 through a pulley group. The first deviation correction push plate 054 is slidably arranged on the second base 051 through a guide rail and a slider, and the first push member 055 adopts an electric cylinder.

[0097] In some specific embodiments, a first mounting plate 056 is bolted and fixed to the second base 051 for mounting one or more guide rollers to guide the unwound pole piece and convey the pole piece forward.

[0098] Furthermore, in some embodiments, the electrode sheet etching and scribing device further includes a tape splicing mechanism 060. The tape splicing mechanism 060 is located at the material discharging side of the unwinding mechanism 050, and is used to assist the operator in splicing the two rolls of electrode sheet materials.

[0099] See also Figure 6 Specifically, the belt connecting mechanism 060 includes a belt connecting platform 061 , a second belt pressing member 062 and a second belt pressing driving member 063 .

[0100] The belt connection platform 061 is fixedly arranged on the frame 040 and has a belt connection surface parallel to the pole piece. The second belt pressing members 062 are arranged in pairs and arranged along the conveying direction of the pole piece. The second belt pressing driving member 063 is arranged corresponding to the second belt pressing member 062, and the second belt pressing driving member 063 is arranged on the belt connection platform 061. The driving end of the second belt pressing driving member 063 is connected to the corresponding second belt pressing member 062 to drive the second belt pressing member 062 to approach or move away from the belt connection surface of the belt connection platform 061.

[0101] When in use, the electrode piece passes between the tape connection platform 061 and the second tape pressing member 062. When the previous roll of electrode piece material is about to be processed, the traction mechanism 010 stops conveying the electrode piece. Along the conveying direction of the electrode piece, the second tape pressing member 062 located in the front is driven by the second tape pressing driving member 063 to approach the tape connection platform 061 until the electrode piece is pressed and fixed. At this time, the operator can cut the electrode piece between the two second tape pressing members 062 and remove the remaining part of the previous roll of electrode piece material from the unwinding mechanism 050.

[0102] Subsequently, the operator puts the next roll of electrode material on the unwinding mechanism 050, unwinds it to a certain length, and manually pulls the head end of the next roll of electrode material to the tape connection mechanism 060, and uses the remaining second tape pressing member 062 to press and fix it. On this basis, the operator further uses tape to bond the tail end of the previous roll of electrode material to the head end of the next roll of electrode material. Driven by the second tape pressing driving member 063, the second tape pressing member 062 moves away from the tape connection platform 061, releases the electrode, and then the electrode can continue to be transported and etched and scribing processed.

[0103] Optionally, the second belt-pressing driving member 063 is a cylinder, a piston rod of which is fixedly connected to the belt-connecting platform 061 , and a cylinder body is connected to the corresponding second belt-pressing member 062 .

[0104] Furthermore, in some specific embodiments, a slag dropping groove is provided on the belt surface of the belt connecting platform 061. The slag dropping groove is located between the second belt pressing members 062 arranged in pairs and passes through the belt connecting platform 061. In addition, the belt connecting mechanism 060 further includes a powder receiving box 064, which is located below the slag dropping groove.

[0105] During use, the operator cuts the electrode piece along the slag trough. In the process, the peeled coating and other powder impurities fall into the slag trough and are then collected by the powder box 064 to prevent the impurities from sticking to the electrode piece and thus preventing the etching and scribing process from being affected.

[0106] Furthermore, in some specific embodiments, the tape connection mechanism 060 further includes a positioning block 065. The positioning block 065 is fixedly disposed on the tape connection platform 061 and is located on one side of the pole piece along the width direction.

[0107] When splicing, the operator places the pole piece against the positioning block 065, so that the two pole pieces can be aligned and the splicing effect is better.

[0108] Please combine Figure 1Furthermore, in some embodiments, the electrode etching and scribing device further includes a tension detection mechanism 070 and an unwinding tension adjustment mechanism 080. The tension detection mechanism 070 is used to detect the tension on the electrode, and the unwinding tension adjustment mechanism 080 adjusts the tension on the electrode according to the detection result of the tension detection mechanism 070 to keep the electrode in a tensioned state.

[0109] See also Figure 7 Specifically, the tension detection mechanism 070 is composed of a tension sensor 071 and a tension roller 072 .

[0110] The tension sensor 071 is fixedly arranged on the frame 040 , and the tension roller 072 is rotatably arranged on the tension sensor 071 around its own axis direction.

[0111] In addition, the tension sensor 071 is electrically connected to the unwinding tension adjustment mechanism 080 .

[0112] When in use, the pole piece is wound around the tension roller 072. When the angle of rotation of the pole piece before and after passing through the tension roller 072 is known, there is a definite corresponding relationship between the tension on the pole piece and the pressure on the tension roller 072. Therefore, the tension on the pole piece can be calculated based on the pressure on the tension roller 072 sensed by the tension sensor 071.

[0113] See also Figure 8 Specifically, the unwinding tension adjustment mechanism 080 is composed of a third base 081, a torsion drive member 082, a second mounting plate 083 and at least two first adjustment rollers (not shown in the figure).

[0114] The third base 081 is fixedly mounted on the frame 040. The torsion drive member 082 is bolted and fixed on the third base 081, and is electrically connected to the tension sensor 071, and the driving end of the torsion drive member 082 is connected to the second mounting plate 083. The first adjustment roller is rotatably mounted on the second mounting plate 083, and the axial direction of the first adjustment roller is parallel to the torsion axis of the torsion drive member 082, and the first adjustment roller is symmetrically arranged about the torsion axis of the torsion drive member 082.

[0115] When in use, the torsion drive member 082 drives the second mounting plate 083 to twist according to the tension information detected by the tension sensor 071, driving each first adjustment roller to twist around the torsion axis of the torsion drive member 082, tightening or loosening the pole piece, and adjusting the tension of the pole piece.

[0116] Optionally, the torsional drive member 082 adopts a second motor, and the second mounting plate 083 is connected to the shaft of the second motor.

[0117] Please combine Figure 1Furthermore, in some embodiments, the above-mentioned electrode etching and scribing equipment also includes a brush dust removal mechanism 090 and a wind knife dust removal mechanism 100.

[0118] There is no limit to the number of the brush dust removal mechanisms 090. For example, a brush dust removal mechanism 090 is provided between the unwinding tension adjustment mechanism 080 and the deviation correction mechanism 030, and the brush dust removal mechanism 090 removes dust from the pole piece before etching and scribing.

[0119] The air knife dust removal mechanism 100 is arranged corresponding to the etching mechanism 020 and is located at the discharge side of the corresponding etching mechanism 020 to promptly remove the dust attached to the electrode piece after etching and scribing.

[0120] See also Fig. 9 Specifically, the brush dust removal mechanism 090 includes a fourth base 091 , a brush assembly 092 , a first dust suction pipe 093 and a second dust cover 094 .

[0121] The fourth base 091 is fixedly arranged on the frame 040, and the brush assembly 092, the first dust suction pipe 093 and the second dust cover 094 are arranged on the fourth base 091. The brush assembly 092 includes two brush rollers parallel to each other, and the two brush rollers can rotate in opposite directions.

[0122] When in use, the electrode piece passes between the two brush rollers, the bristles on the brush rollers brush off the dust on the surface of the electrode piece, and the first dust suction pipe 093 sucks away the brushed dust.

[0123] In some specific embodiments, the brush dust removal mechanism 090 further includes two anti-shake rollers 095. The two anti-shake rollers 095 are parallel to the brush roller and are disposed on the fourth base 091.

[0124] When in use, after the pole piece passes between the two brush rollers, it continues to pass between the two anti-shake rollers 095. The anti-shake rollers 095 can limit the pole piece to prevent the pole piece from shaking greatly under the action of the brush hairs, which is conducive to the smooth transportation of the pole piece.

[0125] In some specific embodiments, the brush dust removal mechanism 090 further includes a first air knife assembly 096. The first air knife assembly 096 is arranged in pairs on the fourth base 091, corresponding to the brush roller. The first air knife assembly 096 is located on the side of the brush roller facing away from the first dust suction pipe 093, and the air outlet of the first air knife assembly 096 faces the contact area between the corresponding brush roller and the electrode piece.

[0126] When in use, the airflow blown out by the first wind knife assembly 096 can separate the dust brushed off by the bristles from the bristles, and the dust is sucked away by the first dust suction pipe 093, thereby keeping the brush roller clean and ensuring the dust removal effect of the brush roller.

[0127] In some specific embodiments, the brush dust removal mechanism 090 further includes an adjusting cylinder 097 for adjusting the distance between the two brush rollers to achieve an optimal dust removal effect.

[0128] For example, the two brush rollers are slidably arranged on the fourth base 091 along the connecting line direction, and have a tendency to move closer to each other under the action of structures such as springs. Accordingly, a wedge block is arranged on the piston rod of the regulating cylinder 097, and is inserted between the two brush rollers. When the piston rod of the regulating cylinder 097 is extended, the depth of the wedge block inserted into the two brush rollers increases, overcoming the elastic force of the spring to make the two brush rollers move away from each other. When the piston rod of the regulating cylinder 097 is retracted, the depth of the wedge block inserted into the two brush rollers decreases, and the two brush rollers move closer to each other under the elastic force of the spring.

[0129] See also Fig.10 Specifically, the wind knife dust removal mechanism 100 is composed of a fifth base 101, a second wind knife assembly 102, an anti-overflow plate 103, a second dust suction pipe 104 and a third dust cover 105.

[0130] The fifth base 101 is fixedly arranged on the frame 040, and the second wind knife assembly 102, the anti-overflow plate 103, the second dust suction pipe 104 and the third dust cover 105 are all arranged on the fifth base 101. The second wind knife assembly 102 and the anti-overflow plate 103 are arranged opposite to each other, and a dust removal area is formed between the two for the pole piece to pass through.

[0131] Different from the brush dust removal mechanism 090, since the etching mechanism 020 only performs etching and scribing processing on the A side (or B side) of the pole piece, the wind knife dust removal mechanism 100 only needs to remove the dust on the A side (or B side) of the pole piece. Accordingly, the number of the second wind knife assembly 102 is one, and its air outlet points to the A side (or B side) of the pole piece. At the same time, the anti-overflow plate 103 is located on the side of the pole piece facing away from the second wind knife assembly 102, opposite to the B side (or A side) of the pole piece, to prevent the second wind knife assembly 102 from blowing the dust on the pole piece out of the third dust cover 105, which is conducive to the second dust suction pipe 104 to suck away the dust blown off by the second wind knife assembly 102.

[0132] Please combine Figure 1 Furthermore, in some embodiments, the above-mentioned electrode etching and scribing equipment also includes a coding mechanism 110, and the number of the coding mechanisms 110 is not limited.

[0133] Exemplarily, the encoding mechanism 110 is disposed on the discharge side of the air knife dust removal mechanism 100 to encode the electrode pieces after etching and scribing.

[0134] See also Fig.11 Specifically, the encoding mechanism 110 is composed of a sixth base 111, an encoder 112, an encoding roller 113, a second cylinder 114 and an encoding driven roller 115.

[0135] The sixth base 111 is fixedly arranged on the frame 040, and the encoder 112 and the second cylinder 114 are both bolted and fixed on the sixth base 111. The encoding roller 113 is rotatably arranged on the sixth base 111 around its own axis direction, and is connected to the output end of the encoder 112 through a coupling, and rotates under the drive of the encoder 112. The axis direction of the encoding driven roller 115 is parallel to the axis direction of the encoding roller 113, and the encoding driven roller 115 is rotatably arranged on the piston rod of the second cylinder 114 around its own axis direction, and approaches or moves away from the encoding roller 113 under the drive of the second cylinder 114.

[0136] When in use, the pole piece passes between the encoding roller 113 and the encoding driven roller 115. The piston rod of the second air cylinder 114 extends to make the encoding driven roller 115 close to the encoding roller 113 until the encoding driven roller 115 holds the pole piece against the surface of the encoding roller 113. At this time, the encoder 112 drives the encoding roller 113 to rotate to a specific angle to encode the pole piece.

[0137] Please combine Figure 1 Furthermore, the above-mentioned electrode etching and scribing equipment also includes a first detection mechanism 120 and a second detection mechanism 130, which can detect the electrode scribing quality online while performing etching and scribing processing on the electrode.

[0138] The first detection mechanism 120 is used to detect the position of the scratch on the pole piece, and the second detection mechanism 130 is used to detect the width and depth of the scratch on the pole piece.

[0139] See also Fig.12 Specifically, the first detection mechanism 120 adopts a 2D line scanning detection mechanism, which is composed of a seventh base 121, an adjustment slide 122, a camera assembly 123, a light source 124 and a fourth dust cover 125, and is used to detect the distance between the scratch and the edge of the pole piece and the distance between two adjacent scratches.

[0140] Among them, the seventh base 121 is fixedly set on the frame 040, the adjustment slide 122, the light source 124 and the fourth dust cover 125 are all set on the seventh base 121, and the camera assembly 123 is set on the sliding end of the adjustment slide 122.

[0141] When in use, the operator adjusts the position of the camera assembly 123 by adjusting the slide 122, the light source 124 provides lighting for the camera assembly 123, and the camera assembly 123 photographs and measures the scratches on the pole piece. In addition, the fourth dust cover 125 is set outside the adjustment slide 122 and the camera assembly 123 to prevent dust from entering.

[0142] See also Fig.13Specifically, the second detection mechanism 130 adopts a 3D laser line scanning detection mechanism, which is composed of an eighth base 131, a linear module 132, a sensor adjustment component 133 and a 3D laser line scanning sensor 134.

[0143] The eighth base 131 is fixedly mounted on the frame 040 . The linear module 132 is mounted on the eighth base 131 , and the driving end of the linear module 132 is connected to the sensor adjustment assembly 133 . The sensor 134 is mounted on the sensor adjustment assembly 133 .

[0144] When in use, the operator adjusts the position of the sensor 134 on the sensor adjustment assembly 133, and the linear module 132 drives the sensor adjustment assembly 133 and the sensor 134 to translate, and the sensor 134 detects the scratch width and scratch depth of the pole piece.

[0145] Optionally, the sensor 134 is a 3D laser line scan sensor.

[0146] It should be noted that there are two groups of first detection mechanism 120 and second detection mechanism 130. One group of first detection mechanism 120 and second detection mechanism 130 detects scratches on surface A of the pole piece, and the other group of first detection mechanism 120 and second detection mechanism 130 detects scratches on surface B of the pole piece.

[0147] In addition, a brush dust removal mechanism 090 is provided on the feeding side of the first detection mechanism 120, and the brush dust removal mechanism 090 removes dust from the pole piece before detecting the scratch position.

[0148] Similarly, the discharging side of the first detection mechanism 120 and the discharging side of the second detection mechanism 130 are both provided with encoding mechanisms 110 to encode the pole pieces after being detected.

[0149] Please combine Figure 1 Furthermore, in some embodiments, the electrode etching and scribing equipment also includes a belt pressing mechanism 140 , and the belt pressing mechanism 140 is located on the feeding side of the second detection mechanism 130 .

[0150] See also Fig.14 Specifically, the belt pressing mechanism 140 is composed of a belt pressing platform 141 , a first belt pressing member 142 and a first belt pressing driving member 143 .

[0151] The belt pressing platform 141 is fixedly arranged on the frame 040. The first belt pressing driving member 143 is arranged on the belt pressing platform 141, and the driving end of the first belt pressing driving member 143 is connected to the first belt pressing member 142 to drive the first belt pressing member 142 to approach or move away from the belt pressing platform 141.

[0152] Before the second detection mechanism 130 detects the pole piece, the first belt pressing member 143 drives the first belt pressing member 142 to approach the belt pressing platform 141 until the first belt pressing member 142 presses and fixes the pole piece to prevent the pole piece located at the second detection mechanism 130 from shaking, thereby completing the detection of the scratch width and scratch depth in a stationary state.

[0153] Optionally, the first belt pressing driving member 143 is a cylinder, a piston rod of which is fixedly connected to the belt pressing platform 141 , and a cylinder body is connected to the first belt pressing member 142 .

[0154] Please combine Figure 1 Furthermore, in some embodiments, the above-mentioned electrode etching and scribing equipment also includes a cache mechanism 150, and the number of the cache mechanisms 150 is not limited.

[0155] Exemplarily, at least one buffer mechanism 150 is located at the feeding side of the belt pressing mechanism 140. When the belt pressing mechanism 140 presses and fixes the electrode piece, the etching mechanism 020 is still running, and the electrode piece located at the feeding side of the belt pressing mechanism 140 is continuously transported. At this time, the buffer mechanism 150 can buffer the electrode piece to prevent the electrode piece from being piled up and bent at the belt pressing mechanism 140.

[0156] Exemplarily, when the etching mechanism 020 performs etching and scribing processing on the electrode piece, the conveying speed of the electrode piece must be strictly controlled. Therefore, the traction mechanism 010 is set corresponding to the etching mechanism 020 and is located at the discharge side of the etching mechanism 020, specifically in front of the etching mechanism 020 and the wind knife dust removal mechanism 100 and the encoding mechanism 110 corresponding to the etching mechanism 020 along the conveying direction, and the conveying speed of the electrode piece at the etching mechanism 020 is controlled by controlling the rotation speed of the traction roller 013. Correspondingly, a cache mechanism 150 is set in front of the traction mechanism 010 along the conveying direction to ensure that the electrode piece at the etching mechanism 020 is only pulled by the traction mechanism 010 and is not affected by other mechanisms.

[0157] See also Fig.15 Specifically, the cache mechanism 150 includes a first cache roller (not shown in the figure), a second cache roller (not shown in the figure), a third mounting plate 151 and a cache driving member 152.

[0158] The first buffer roller is rotatably mounted on the third mounting plate 151. The second buffer rollers are arranged in pairs on both sides of the first buffer roller and are rotatably mounted on the frame 040. The driving end of the buffer driving member 152 is connected to the third mounting plate 151 to drive the third mounting plate 151 to drive the first buffer roller to translate relative to the second buffer roller.

[0159] When in use, the pole piece first bypasses the second buffer roller located on one side of the first buffer roller, then bypasses the first buffer roller, and finally bypasses the second buffer roller located on the other side of the first buffer roller.

[0160] When the pole piece conveying speed on the discharge side of the cache mechanism 150 is lower than the pole piece conveying speed on the feed side of the cache mechanism 150, the cache driving member 152 drives the first cache roller to translate relative to the second cache roller, so that the first cache roller is away from the second cache roller. At this time, the distance between the first cache roller and the second cache roller increases, and the length of the pole piece at the cache mechanism 150 increases, ensuring that the pole piece remains in a tensioned state.

[0161] On the contrary, when the pole piece conveying speed on the discharge side of the buffer mechanism 150 is greater than the pole piece conveying speed on the feed side of the buffer mechanism 150, the buffer driving member 152 drives the first buffer roller to approach the second buffer roller. At this time, the distance between the first buffer roller and the second buffer roller is reduced, and the length of the pole piece at the buffer mechanism 150 is reduced, thereby avoiding excessive tension on the pole piece.

[0162] Optionally, the cache drive member 152 is a servo motor, and the shaft of the servo motor is connected to the third mounting plate 151 through a first linear motion component 153. The first linear motion component 153 may be a screw rod and a screw nut.

[0163] In some specific implementations, the cache mechanism 150 further includes a first limit sensor 154. The first limit sensors 154 are arranged in pairs at both ends of the moving stroke of the third mounting plate 151 to limit the moving range of the third mounting plate 151.

[0164] See also Fig.16 Furthermore, the above-mentioned electrode etching and scribing equipment also includes a labeling mechanism 160 for attaching a label to the electrode after the inspection is completed.

[0165] Specifically, the labeling mechanism 160 is composed of a ninth base 161 , a slide bar 162 , a position adjustment block 163 , an adjustment plate 164 and a placement machine 165 .

[0166] The ninth base 161 is fixedly arranged on the frame 040, and the slide bar 162 is fixedly connected to the ninth base 161. The position adjustment block 163 is engaged with the slide bar 162, and bolts are passed through the position adjustment block 163.

[0167] When in use, the operator loosens the bolts to allow the position adjustment block 163 to slide on the slide bar 162 to adjust the position of the position adjustment block 163, and tightens the bolts again after the adjustment is completed to allow the position adjustment block 163 to hold the slide bar 162 tightly and fix it.

[0168] In addition, the adjustment plate 164 is bolted to the position adjustment block 163, and an adjustment slot is provided on the adjustment plate 164 for allowing the bolt to pass through, and the adjustment slot is perpendicular to the axis direction of the slide bar 162. Similarly, the operator can loosen the bolt to adjust the relative position of the adjustment plate 164 and the position adjustment block 163. Conversely, the operator can tighten the bolt to fix the adjustment plate 164 on the position adjustment block 163.

[0169] The chip mounter 165 is bolted and fixed on the adjustment plate 164, and after the position adjustment is completed, the electrode is labeled.

[0170] See also Fig.17 Furthermore, in some embodiments, the above-mentioned electrode etching and scribing equipment also includes a winding mechanism 170, which can automatically wind up the electrode after etching, scribing and inspection.

[0171] Specifically, the winding mechanism 170 includes a tenth base 171 , a winding shaft 172 , a winding driving member 173 , a second deviation-correcting push plate 174 and a second pushing member 175 .

[0172] The tenth base 171 is fixedly arranged on the frame 040, and the winding drive member 173 and the second pusher 175 are both bolted and fixed on the tenth base 171. The winding shaft 172 is rotatably arranged on the tenth base 171 around its own axial direction, and is connected to the driving end of the winding drive member 173, and rotates under the drive of the winding drive member 173. The second deviation correction push plate 174 is slidably arranged on the tenth base 171 along the axial direction of the winding shaft 172, and is connected to the driving end of the second pusher 175. Accordingly, the pushing direction of the second pusher 175 is parallel to the axial direction of the winding shaft 172.

[0173] When in use, the winding drive member 173 drives the winding shaft 172 to rotate and winds the detected pole piece into a roll. At the same time, the second pusher 175 pushes the second deviation correction push plate 174 to slide along the axis direction of the winding shaft 172 and abut against one side of the pole piece along the width direction, adjusts the position of the pole piece along the width direction, and realizes automatic deviation correction during the winding process.

[0174] Optionally, the reel 172 is an inflatable shaft, which can expand after the pole piece is wound and remain relatively fixed with the pole piece. The reel drive member 173 adopts a servo motor, and its shaft is connected to one end of the reel 172 through a pulley set. The second deviation correction push plate 174 is slidably arranged on the tenth base 171 through a guide rail and a slider, and the second push member 175 adopts an electric cylinder.

[0175] In some specific embodiments, the winding mechanism 170 also includes a correction sensor (not shown in the figure), which is installed on the tenth base 171 through the fourth mounting plate 176 to sense the position of the pole piece along the width direction as a basis for the action of the second pushing member 175.

[0176] Furthermore, in some specific embodiments, the winding mechanism 170 also includes a smoothing component 177 to make the pole piece fit tightly during the winding process.

[0177] Specifically, the smoothing assembly 177 includes a rotatably arranged swing arm 177a and a smoothing roller 177b arranged at one end of the swing arm 177a. The axis direction of the smoothing roller 177b is parallel to the axis direction of the winding shaft 172, and the smoothing roller 177b is higher than the winding shaft 172.

[0178] When in use, the smoothing roller 177b overlaps the pole piece wound on the winding shaft 172 under the action of its own gravity and the gravity of the swing arm 177a, so that the pole piece is tightly attached.

[0179] Optionally, the winding mechanism 170 further includes a lifting assembly 178 , and one end of the swing arm 177 a away from the smoothing roller 177 b is rotatably disposed at the driving end of the lifting assembly 178 .

[0180] As the pole piece wound on the winding shaft 172 gradually becomes thicker, the lifting assembly 178 can drive the swing arm 177a and the smoothing roller 177b to rise, so that the smoothing roller 177b is pulled away from the winding shaft 172, and then the swing arm 177a and the smoothing roller 177b overlap the pole piece at an appropriate angle.

[0181] Please combine Figure 1 Furthermore, the electrode etching and scribing device further includes a winding tension adjustment mechanism 180. The winding tension adjustment mechanism 180 is located at the feeding side of the winding mechanism 170, and adjusts the tension on the electrode before the winding shaft 172 winds up the electrode.

[0182] In fact, the winding mechanism 170 winds up the pole piece at a substantially constant speed, and the pole piece remains stationary when being inspected by the second inspection mechanism 130, and is quickly transported after the inspection by the second inspection mechanism 130 is completed. Therefore, the winding tension adjustment mechanism 180 adjusts the tension on the pole piece by caching the pole piece, which is similar to the working process of the cache mechanism 150.

[0183] See also Fig.18 Specifically, the winding tension adjustment mechanism 180 includes a second adjustment roller (not shown in the figure), a third adjustment roller (not shown in the figure), a fifth mounting plate 181 and a tension adjustment driving member 182.

[0184] The second adjusting roller is rotatably mounted on the fifth mounting plate 181. The third adjusting roller is arranged in pairs on both sides of the second adjusting roller and is rotatably mounted on the frame 040. The driving end of the tension adjustment driving member 182 is connected to the fifth mounting plate 181 to drive the fifth mounting plate 181 to drive the second adjusting roller to translate relative to the third adjusting roller.

[0185] When in use, the pole piece first passes around the third adjusting roller located on one side of the second adjusting roller, then passes around the second adjusting roller, and finally passes around the third adjusting roller located on the other side of the second adjusting roller. When the pole piece is detected at the second detection mechanism 130, the tension adjustment drive 182 drives the second adjusting roller to approach the third adjusting roller. The distance between the second adjusting roller and the third adjusting roller decreases, and the pole piece located at the winding tension adjustment mechanism 180 is continuously wound on the winding shaft 172.

[0186] On the contrary, after the second detection mechanism 130 finishes detection, the tension adjustment drive 182 drives the second adjustment roller away from the third adjustment roller. At this time, the distance between the second adjustment roller and the third adjustment roller increases, and the pole piece is quickly transported and temporarily stored at the winding tension adjustment mechanism 180.

[0187] Optionally, the tension adjustment driving member 182 adopts a servo motor, and the shaft of the servo motor is connected to the third mounting plate 151 through a second linear motion component 183. The second linear motion component 183 can be a screw rod and a screw nut.

[0188] In some specific embodiments, the winding tension adjustment mechanism 180 further includes a second limit sensor 184. The second limit sensors 184 are arranged in pairs at both ends of the moving stroke of the fifth mounting plate 181 to limit the moving range of the fifth mounting plate 181.

[0189] See also Fig.19 Furthermore, in some embodiments, the above-mentioned pole piece etching and scribing equipment also includes a movable control screen mechanism 190, and the movable control screen mechanism 190 is composed of a third linear motion component 191, a cantilever component 192 and a control screen component 193.

[0190] The third linear motion assembly 191 is disposed on the frame 040 and has a sliding end that can slide horizontally. The cantilever assembly 192 is rotatably disposed on the sliding end and is connected to the control screen assembly 193 .

[0191] During use, the operator can pull and rotate the cantilever assembly 192 to adjust the position of the control screen assembly 193 so as to operate on the control screen assembly 193 .

[0192] Optionally, the third linear motion assembly 191 adopts a slide rail and a slider. The slide rail is fixedly connected to the frame 040, and the slider is slidably arranged on the slide rail. Correspondingly, the cantilever assembly 192 is rotatably arranged on the slider.

[0193] In some specific implementations, a three-color light is also provided on the slide rail for status indication.

[0194] When the electrode etching and scribing equipment is working, the unwinding mechanism 050 automatically unwinds and feeds the rolled electrode raw material, and the first pusher 055 and the first deviation correction push plate 054 in the unwinding mechanism 050 automatically correct the deviation of the electrode. Subsequently, the electrode passes through the tape connection mechanism 060, the tension detection mechanism 070 and the unwinding tension adjustment mechanism 080 in sequence, and the tension on the electrode is detected by the tension detection mechanism 070, and the tension on the electrode is adjusted by the unwinding tension adjustment mechanism 080.

[0195] After adjusting the tension, the pole piece is sequentially dusted by one of the brush dust removal mechanisms 090 and corrected by one of the correction mechanisms 030, and then transported to one of the etching mechanisms 020, which performs laser etching and marking on the A surface of the pole piece. Subsequently, one of the air knife dust removal mechanisms 100 removes the dust generated during the etching and marking process on the A surface of the pole piece, and one of the encoding mechanisms 110 encodes the pole piece.

[0196] The encoded pole piece is transported forward under the traction of one of the traction mechanisms 010, and passes through one of the buffer mechanisms 150, another correction mechanism 030 and another etching mechanism 020 in sequence, and after correction, the B side is etched and marked. Subsequently, another air knife dust removal mechanism 100 removes the dust generated during the etching and marking process on the B side of the pole piece, and another encoding mechanism 110 encodes the pole piece.

[0197] The pole piece after being encoded again is transported forward under the traction of another traction mechanism 010, and passes through another buffer mechanism 150 and another brush dust removal mechanism 090 in turn, and is subjected to online inspection after being dusted by another brush dust removal mechanism 090.

[0198] During the online inspection, the first inspection mechanism 120 first inspects the scratch position of the electrode, and then the encoding mechanism 110 encodes the electrode. Subsequently, the electrode is transported forward under the traction of the third traction mechanism 010, passes through the buffer mechanism 150 and the belt pressing mechanism 140 in sequence, and enters the second inspection mechanism 130. When the second inspection mechanism 130 inspects the scratch width and scratch depth of the electrode, the belt pressing mechanism 140 presses and fixes the electrode to prevent the electrode at the second inspection mechanism 130 from shaking.

[0199] After the detection is completed, the encoding mechanism 110 encodes the pole piece again, and the encoded pole piece passes through the labeling mechanism 160 and the winding tension adjustment mechanism 180 in sequence under the traction of the fourth traction mechanism 010, and is finally wound up by the winding mechanism 170. During the winding process, the second pusher 175 and the second deviation correction push plate 174 in the winding mechanism 170 also automatically correct the deviation of the pole piece.

[0200] Among them, the automatic correction of the electrode during unwinding, the correction of the electrode by the correction mechanism 030 during the electrode conveying process, the laser correction of the upper and lower adjustment components 022 and the front and rear adjustment components 023 during the etching process, and the automatic correction of the electrode during winding can eliminate the position deviation of the electrode along its own width direction to the greatest extent, and accurately convey the electrode to the etching mechanism 020, ensuring that the electrode has sufficient tape positioning accuracy during the etching and scribing process, thereby improving the position accuracy of the etching and scribing.

[0201] In addition, the unwinding tension adjustment mechanism 080 can adjust the tension of the electrode, and cooperate with the traction mechanism 010 and the buffer mechanism 150 arranged on the discharge side of the etching mechanism 020 to ensure that the electrode remains tensioned during the etching and scribing process, and can also improve the position accuracy of the etching and scribing.

[0202] Furthermore, the first detection mechanism 120 and the second detection mechanism 130 can realize online detection of the electrode sheet scribing quality.

[0203] Finally, the brush dust removal mechanism 090 and the wind knife dust removal mechanism 100 can clean the dust and impurities on the electrode before and after etching and scribing, avoiding adverse conditions such as light leakage and bumps on the electrode during the winding process.

[0204] In short, the above-mentioned electrode etching and marking equipment can realize functions such as automatic correction, automatic etching and marking, automatic detection, automatic labeling, manual loading and manual unloading.

[0205] This embodiment also provides a production line, including the above-mentioned electrode etching and scribing equipment.

[0206] In all examples shown and described herein, any specific values ​​should be interpreted as merely exemplary and not as limiting, and thus other examples of the exemplary embodiments may have different values.

[0207] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0208] The above-mentioned embodiments only express several implementation methods of the present invention, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention.

Claims

1. A pole piece etching and scribing device, characterized in that: include: A traction mechanism for conveying pole pieces; at least one etching mechanism; as well as A deflection correction mechanism is arranged corresponding to the etching mechanism and is located at the feeding side of the corresponding etching mechanism, the deflection correction mechanism comprises a deflection correction roller and a rotating driving member, the deflection correction roller is rotatably arranged at the driving end of the rotating driving member, and the rotating direction of the rotating driving member is perpendicular to the axial direction of the deflection correction roller and perpendicular to the connecting direction of the deflection correction mechanism and the etching mechanism; Wherein, the rotary drive member is used to drive the deviation-correcting roller to rotate in a direction opposite to the deflection direction of the pole piece.

2. The electrode etching and scribing equipment according to claim 1, characterized in that: The pole piece etching and scribing equipment further comprises a first detection mechanism and a second detection mechanism, wherein the first detection mechanism is used to detect the scratch position of the pole piece, and the second detection mechanism is used to detect the scratch width and scratch depth of the pole piece.

3. The electrode etching and scribing equipment according to claim 2, characterized in that: The first detection mechanism includes an adjustment slide, a camera assembly and a light source. The camera assembly is arranged at the sliding end of the adjustment slide. The shooting area of ​​the camera assembly and the irradiation area of ​​the light source cover the pole piece at the same time.

4. The electrode etching and scribing equipment according to claim 2, characterized in that: The second detection mechanism includes a linear module, a sensor adjustment component and a sensor. The driving end of the linear module is connected to the sensor adjustment component, and the sensor is arranged in the sensor adjustment component.

5. The electrode piece etching and scribing equipment according to claim 2, 3 or 4, characterized in that: The electrode piece etching and scribing equipment further comprises a belt pressing mechanism, and the belt pressing mechanism is located at the feeding side of the second detection mechanism; The belt pressing mechanism includes a belt pressing platform, a first belt pressing member and a first belt pressing driving member. The first belt pressing driving member is arranged on the belt pressing platform. The driving end of the first belt pressing driving member is connected to the first belt pressing member to drive the first belt pressing member to approach or move away from the belt pressing platform.

6. The electrode etching and scribing equipment according to claim 5, characterized in that: The pole piece etching and scribing device further comprises at least one buffer mechanism, and at least one buffer mechanism is located at the feeding side of the belt pressing mechanism; The cache mechanism includes a first cache roller, a second cache roller and a cache driving member, wherein the second cache rollers are arranged in pairs on both sides of the first cache roller, and the driving end of the cache driving member is connected to the first cache roller to drive the first cache roller to translate relative to the second cache roller.

7. The electrode etching and scribing equipment according to claim 1, characterized in that: The pole piece etching and scribing device further comprises an unwinding mechanism, wherein the unwinding mechanism comprises an unwinding shaft, an unwinding driving member, a first deviation-correcting push plate and a first pushing member; The unwinding shaft is connected to the driving end of the unwinding driving member, the first deviation-correcting push plate is connected to the driving end of the first pushing member, and the pushing direction of the first pushing member is parallel to the axial direction of the unwinding shaft.

8. The electrode etching and scribing equipment according to claim 7, characterized in that: The electrode etching and scribing equipment further comprises a tape connection mechanism, and the tape connection mechanism is located at the discharge side of the unwinding mechanism; The belt connecting mechanism includes a belt connecting platform, a second belt pressing member and a second belt pressing driving member, the second belt pressing members are arranged in pairs, the second belt pressing driving member is arranged corresponding to the second belt pressing member, the second belt pressing driving member is arranged on the belt connecting platform, and the driving end of the second belt pressing driving member is connected to the corresponding second belt pressing member to drive the second belt pressing member to approach or move away from the belt connecting platform.

9. The electrode etching and scribing equipment according to claim 8, characterized in that: The belt connection platform is provided with a slag drop groove, and the slag drop groove is located between the second belt pressing members arranged in pairs; The belt connection mechanism also includes a powder receiving box, and the powder receiving box is located below the slag dropping trough.

10. The electrode etching and scribing equipment according to claim 7, characterized in that: The electrode etching and scribing equipment further includes a tension detection mechanism and an unwinding tension adjustment mechanism which are sequentially arranged on the discharge side of the unwinding mechanism; The tension detection mechanism includes a tension sensor and a tension roller rotatably arranged on the tension sensor, and the tension sensor is electrically connected to the unwinding tension adjustment mechanism.

11. The electrode etching and scribing equipment according to claim 10, characterized in that: The unwinding tension adjustment mechanism comprises a torsion drive and at least two first adjustment rollers. The torsion drive is electrically connected to the tension sensor. The at least two first adjustment rollers are both arranged at the driving end of the torsion drive.

12. The electrode etching and scribing equipment according to claim 1, characterized in that: The pole piece etching and scribing device further comprises a winding mechanism, wherein the winding mechanism comprises a winding shaft, a winding driving member, a second deviation correcting push plate and a second pushing member; The winding shaft is connected to the driving end of the winding driving member, the second deviation-correcting push plate is connected to the driving end of the second pushing member, and the pushing direction of the second pushing member is parallel to the axial direction of the winding shaft.

13. The electrode etching and scribing equipment according to claim 12, characterized in that: The winding mechanism also includes a smoothing component, which includes a rotatably arranged swing arm and a smoothing roller arranged on the swing arm, the axial direction of the smoothing roller is parallel to the axial direction of the winding shaft, and the smoothing roller is higher than the winding shaft.

14. The electrode etching and scribing equipment according to claim 12, characterized in that: The electrode etching and scribing equipment further comprises a winding tension adjustment mechanism arranged on the feeding side of the winding mechanism; The winding tension adjustment mechanism comprises a second adjustment roller, a third adjustment roller and a tension adjustment driving member, wherein the tension adjustment driving member is connected to the second adjustment roller and is used to drive the second adjustment roller to translate relative to the third adjustment roller.

15. The electrode etching and scribing equipment according to claim 1, characterized in that: The electrode etching and scribing equipment further comprises a brush dust removal mechanism and an air knife dust removal mechanism. The brush dust removal mechanism is arranged on the feeding side of the etching mechanism, and the air knife dust removal mechanism is arranged on the discharging side of the etching mechanism.

16. The pole piece etching and scribing equipment according to claim 15, characterized in that: The brush dust removal mechanism includes a brush assembly, a first dust suction pipe and a first air knife assembly. The brush assembly includes two brush rollers that are parallel to each other and rotatable in opposite directions. The air outlet of the first air knife assembly is arranged toward the brush rollers.

17. The electrode etching and scribing equipment according to claim 15, characterized in that: The wind knife dust removal mechanism includes a second wind knife assembly, an anti-overflow plate and a second dust suction pipe. The second wind knife assembly is arranged opposite to the anti-overflow plate. A dust removal area is formed between the second wind knife assembly and the anti-overflow plate through which the pole piece can pass.

18. The electrode etching and scribing equipment according to claim 1, characterized in that: The pole piece etching and scribing equipment also includes a coding mechanism, which includes an encoder, a coding roller and a coding driven roller. The output end of the encoder is connected to the coding roller, and the coding driven roller is used to hold the pole piece against the coding roller.

19. A production line, characterized in that: A pole piece etching and scribing device comprising the pole piece etching and scribing device according to any one of claims 1 to 18.

Images