CN215815948U - Negative electrode supply mechanism - Google Patents

Abstract

The utility model discloses a negative electrode supply mechanism, which is used in a winding machine for producing lithium secondary batteries and comprises a negative electrode deviation rectifying assembly and a negative electrode supply assembly, wherein the negative electrode supply assembly comprises a negative electrode supply clamping jaw assembly and a negative electrode supply driving assembly, and the negative electrode supply clamping jaw assembly is in transmission connection with the negative electrode supply driving assembly, so that the negative electrode supply driving assembly can drive the negative electrode supply clamping jaw assembly to convey a negative electrode sheet subjected to deviation rectifying by the negative electrode deviation rectifying assembly to the winding mechanism of the winding machine for winding.

Description

Negative electrode supply mechanism

Technical Field

The utility model relates to the technical field of lithium secondary battery production and processing, in particular to a negative electrode supply mechanism.

Background

In the lithium secondary battery production process, winding is an indispensable process, a manual or semi-automatic winding mode is adopted traditionally, however, with the rapid development of the lithium secondary battery technology, the quality requirement on the lithium secondary battery is higher and higher, and the requirement on a battery winding machine is higher and higher, while the manual or semi-automatic winding mode has low efficiency and poor product consistency, and cannot meet the increasing requirements of people on the winding machine.

SUMMERY OF THE UTILITY MODEL

The utility model provides a cathode supply mechanism which can convey cathode sheets subjected to deviation correction by a cathode deviation correction assembly to a winding mechanism of a winding machine for winding through a cathode supply clamping jaw assembly, so that the working efficiency is improved, the product consistency is good, and time and labor are saved.

The utility model provides a negative electrode supply mechanism, which is used in a winding machine for producing lithium-ion batteries and comprises a negative electrode deviation rectifying assembly and a negative electrode supply assembly, wherein the negative electrode supply assembly comprises a negative electrode supply clamping jaw assembly and a negative electrode supply driving assembly, and the negative electrode supply clamping jaw assembly is in transmission connection with the negative electrode supply driving assembly, so that the negative electrode supply driving assembly can drive the negative electrode supply clamping jaw assembly to convey a negative electrode sheet subjected to deviation rectifying by the negative electrode deviation rectifying assembly to the winding mechanism of the winding machine for winding.

In the negative electrode supply mechanism according to an embodiment of the present invention, the negative electrode deviation rectifying assembly includes a negative electrode deviation rectifying support seat and a negative electrode deviation rectifying adjusting member, the negative electrode deviation rectifying adjusting member is mounted on the negative electrode deviation rectifying support seat, and the negative electrode deviation rectifying support seat is connected to the negative electrode supply assembly.

In the negative electrode supply mechanism according to an embodiment of the present invention, the negative electrode supply assembly includes a negative electrode supply mounting base, the negative electrode supply clamping jaw assembly and the negative electrode supply driving assembly are both mounted on the negative electrode supply mounting base, and the negative electrode supply mounting base is connected to the negative electrode deviation rectifying assembly.

In the negative electrode supply mechanism according to an embodiment of the present invention, the negative electrode supply assembly includes a negative electrode supply roller that is mounted on the negative electrode supply mount so that the negative electrode sheet can be nipped by the negative electrode supply jaw assembly after passing through the negative electrode supply roller.

In the negative electrode supply mechanism according to an embodiment of the present invention, the negative electrode supply assembly includes a negative electrode supply cutter, and the negative electrode supply cutter is mounted on the other end of the negative electrode supply mounting base away from the negative electrode supply roller, and is configured to cut the negative electrode sheet.

In the negative electrode supply mechanism according to an embodiment of the present invention, the negative electrode supply driving assembly includes a negative electrode supply driving member and a negative electrode supply transmission member, and the negative electrode supply driving member is drivingly connected to the negative electrode supply jaw assembly through the negative electrode supply transmission member.

In the negative electrode supply mechanism according to an embodiment of the present invention, the negative electrode supply transmission member includes a negative electrode supply screw shaft and a negative electrode supply screw nut engaged with the negative electrode supply screw shaft, and the negative electrode supply gripper assembly is connected to the negative electrode supply screw nut.

In the negative electrode supply mechanism according to an embodiment of the present invention, the negative electrode supply drive unit includes a negative electrode supply guide unit, and the negative electrode supply jaw unit is attached to the negative electrode supply attachment base via the negative electrode supply guide unit.

In the negative electrode supply mechanism according to an embodiment of the present invention, the negative electrode supply guide assembly includes a negative electrode supply rail fixed to the negative electrode supply mount and a negative electrode supply slider engaged with the negative electrode supply rail, and the negative electrode supply gripper assembly is connected to the negative electrode supply slider.

In the negative electrode supply mechanism according to an embodiment of the present invention, the negative electrode supply mechanism includes a negative electrode supply pressure roller disposed on a side of the negative electrode deviation rectifying assembly away from the negative electrode supply assembly.

The technical scheme provided by the embodiment of the application can have the following beneficial effects: the application designs a negative pole feed mechanism, including negative pole deviation rectifying assembly and negative pole supply assembly, the negative pole is supplied with drive assembly and can be driven the negative pole and supply with clamping jaw assembly and carry the negative pole piece after the negative pole deviation rectifying assembly is rectified to the winding mechanism of winder and convolute to reach the effect that the negative pole piece was rectified, improved the quality of winding mechanism coiling negative pole piece, also improved work efficiency simultaneously, the product uniformity is good, and save time and laborsaving.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of an automatic winding machine according to an embodiment of the present application;

FIG. 2 is a schematic view of the automatic winder of FIG. 1 at one of its angles;

FIG. 3 is a schematic view of the automatic winder of FIG. 1 at another angle;

fig. 4 is a schematic structural view of the negative electrode conveying device in fig. 1;

fig. 5 is a schematic structural view of the negative electrode composite mechanism in fig. 1;

fig. 6 is a schematic structural view of the negative electrode speed control mechanism in fig. 1;

fig. 7 is a schematic structural view of the negative electrode supply mechanism in fig. 1;

fig. 8 is a schematic structural diagram of the cathode front end diaphragm unwinding mechanism in fig. 1;

FIG. 9 is a schematic view of a part of the structure of the positive electrode transport device in FIG. 1;

fig. 10 is a schematic structural view of the positive electrode supply mechanism in fig. 1;

FIG. 11 is a schematic structural view of the winding mechanism of FIG. 1;

fig. 12 is a schematic structural view of the end-gum mechanism in fig. 1.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It is also to be understood that the terminology used in the description of the utility model herein is for the purpose of describing particular embodiments only, and it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," and the like are used in the orientations and positional relationships indicated in the drawings for the purpose of convenience and simplicity of description only, and are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the application. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

Some embodiments of the present application will be described in detail below with reference to the accompanying drawings. The embodiments described below and the features of the embodiments can be combined with each other without conflict.

As shown in fig. 1 to 12, the present application provides an automatic winding machine, which belongs to the technical field of lithium sub-battery production, and comprises a frame 1000, a positive electrode conveying device and a negative electrode conveying device, wherein the positive electrode conveying device and the negative electrode conveying device are both mounted on the frame. Wherein, anodal conveyor is used for carrying the positive plate to winding mechanism 3000, and negative pole conveyor is used for carrying the negative pole piece to winding mechanism 3000 and coiling together with the positive plate, not only can carry out automation mechanized operation like this, and operation precision and operating efficiency can obtain better control moreover, have improved work efficiency, and product uniformity number is saved time, laborsaving.

Specifically, the rack 1000 is provided with an installation panel, and the positive electrode conveying device is installed on the installation panel. The positive electrode production device comprises an upper diaphragm unreeling mechanism 200 and a positive electrode supply mechanism 100, wherein the positive electrode supply mechanism 100 is used for conveying a positive electrode plate to a reeling mechanism 3000 of a reeling machine, and the upper diaphragm unreeling mechanism 200 is used for placing an upper diaphragm, so that the upper diaphragm can be positioned below the positive electrode plate and conveyed to the reeling mechanism 3000 together for reeling;

in the present embodiment, the negative electrode transport device is mounted on the mounting panel. Wherein, negative pole apparatus for producing includes composite diaphragm unwinding mechanism 400, lithium area unwinding mechanism 500, composite steel mesh unwinding mechanism 300 and lower diaphragm unwinding mechanism 600, make composite diaphragm on the composite diaphragm unwinding mechanism 400 and lithium area on the lithium area unwinding mechanism 500 and the composite steel mesh on the composite steel mesh unwinding mechanism 300 form the negative pole piece after the pressfitting in proper order, and diaphragm unwinding mechanism 600 is located the top of negative pole piece and carries and convolute to winding mechanism 3000 and positive plate and last diaphragm down, simple structure not only saves manufacturing cost, high durability and convenient use, and the quality of convoluteing out the lithium inferior battery is extremely reliable, production efficiency has been improved for the mode of pure manual formula coiling.

In an alternative embodiment, the automatic winding machine further comprises a human-machine interface 2000, the human-machine interface 2000 being movably mounted on the frame 1000. The human-computer interface 2000 includes an operation button and a touch screen, and the operation button and the touch screen are used for realizing human-computer interaction of the winding machine, so that a user can control the winding machine through the operation button and the touch screen, that is, parameters of the automatic winding machine can be adjusted through the human-computer interface 2000.

In an alternative embodiment, the upper separator unwinding mechanism 200 includes an upper separator winding unit for placing an upper separator roll, and an upper separator guide assembly disposed below the positive electrode supply mechanism 100 for guiding the upper separator on the upper separator roll into the winding mechanism 3000 so that the upper separator can be wound together with the positive electrode sheet in the winding mechanism 3000 with the upper separator between the positive electrode sheet and the negative electrode sheet.

Illustratively, the upper membrane winding unit is of a material roll structure, and the upper membrane guide assembly comprises a plurality of upper membrane guide wheels which are arranged in sequence, wherein the upper membrane is arranged in the upper membrane guide wheels in a penetrating manner to play a guiding role. In this embodiment, the upper membrane guide assembly is further provided with an upper membrane pulling member for pulling the upper membrane to move in the direction of the winding mechanism 3000.

In an alternative embodiment, the positive electrode feeding mechanism 100 includes a positive electrode placing assembly 120, a positive electrode picking and placing assembly 130, and a positive electrode moving assembly 160, wherein the positive electrode picking and placing assembly 130 is used for moving the positive electrode sheet placed in the positive electrode placing assembly 120 into the positive electrode moving assembly 160, so that the positive electrode sheet can be conveyed to the winding mechanism 3000 through the positive electrode moving assembly 160 for winding.

The positive electrode placing assembly 120 comprises a positive electrode placing seat, a positive electrode placing groove is formed in the positive electrode placing seat, the length and the width of the positive electrode placing groove are matched with those of the positive electrode plate, so that the positive electrode plate can be placed in the positive electrode placing groove, and the positive electrode taking and placing assembly 130 can take the positive electrode plate away from the positive electrode placing groove and move the positive electrode plate to the positive electrode moving assembly 160 for conveying.

In an alternative embodiment, the positive electrode placing assembly 120 includes a positive electrode sheet pressing roller 110, and the positive electrode sheet pressing roller 110 is configured to press and hold the positive electrode sheets placed in the positive electrode placing groove, so as to limit the number of positive electrode sheets that are taken and placed each time by the positive electrode taking and placing assembly 130, that is, when the positive electrode taking and placing assembly 130 takes and places the positive electrode sheets, the positive electrode sheet pressing roller 110 presses another positive electrode sheet, so that the positive electrode taking and placing assembly 130 can only allow one positive electrode sheet to be taken and moved into the positive electrode moving assembly 160 for transportation.

The number of the positive plate pressing rollers 110 is two, and the two positive plate pressing rollers 110 are arranged above the positive electrode placing groove at intervals so as to ensure that the positive plates can be pressed and held by the positive plate pressing rollers 110.

In an alternative embodiment, the positive electrode picking and placing assembly 130 includes a positive electrode mounting plate, a positive electrode rotating member 140, and a positive electrode adsorbing member, wherein the positive electrode adsorbing member is connected to the positive electrode rotating member 140 through the positive electrode mounting plate, and the positive electrode rotating member 140 is mounted on a mounting panel of the winding machine, so that the positive electrode rotating member 140 can drive the positive electrode adsorbing member to rotate.

Specifically, the positive electrode adsorption piece includes a positive electrode adsorption driving piece and at least two positive electrode suction nozzle pieces, the two positive electrode suction nozzle pieces are arranged at an interval on a driving portion of the positive electrode adsorption driving piece, and the positive electrode adsorption driving piece is connected to the positive electrode rotating piece 140.

Illustratively, the positive pole is got and is put subassembly and includes anodal guide rail spare and anodal drive assembly, and wherein, anodal absorption piece passes through anodal guide rail spare and installs on anodal mounting panel, and anodal drive assembly is connected with anodal absorption piece transmission for drive anodal absorption piece is straight reciprocating motion, in order to realize the transport of positive plate.

In an alternative embodiment, the positive electrode driving assembly includes a positive electrode driving member and a positive electrode driving member, and the positive electrode driving member is in transmission connection with the positive electrode absorbing member through the positive electrode driving member.

In this embodiment, the positive driving member is a driving motor, the positive driving member is a belt, the positive adsorbing members are disposed at two ends of the belt, and the driving motor is connected to the belt for driving the positive adsorbing members on the belt to move.

In an alternative embodiment, the positive electrode moving assembly 160 includes a mounting base assembly and a positive electrode deviation rectifying assembly 150, wherein the positive electrode deviation rectifying assembly is mounted on the mounting base assembly and is used for adjusting the left and right positions of the positive electrode plate so as to further improve the quality of the wound battery of the winding machine.

In an alternative embodiment, the positive electrode moving assembly includes a positive electrode tab supply drive for conveying the positive electrode tabs on the mounting block assembly to a winding mechanism of the winder.

In an alternative embodiment, the negative electrode production apparatus includes a negative electrode assembly 800, wherein the negative electrode assembly 800 has an upper press roll 810 and a lower press roll 820. In this embodiment, the upper press roll 810 and the lower press roll 820 are engaged with each other, so that the lithium iron composite separator, the lithium iron belt, and the composite steel mesh can be pressed and inserted between the upper press roll 810 and the lower press roll 820.

Exemplarily, the negative electrode production apparatus includes a composite mechanism mounting frame, and the upper press roll 810 and the lower press roll 820 are disposed on the composite mechanism mounting frame at an interval, so that the composite separator, the lithium ribbon and the composite steel mesh in the winding machine can pass through between the upper press roll 810 and the lower press roll 820 after being stacked to be pressed together to form the negative electrode sheet.

The negative electrode composite mechanism further comprises a composite mechanism driving assembly, the composite mechanism driving assembly is in transmission connection with the upper pressing roller 810 and/or the lower pressing roller 820 and is used for driving the upper pressing roller 810 and/or the lower pressing roller 820 to rotate so as to drive the composite diaphragm, the lithium belt and the composite steel mesh which are arranged between the upper pressing roller 810 and the lower pressing roller 820 in a penetrating mode to move.

In an optional embodiment, the composite mechanism driving assembly comprises a composite mechanism driving member 830 and a composite mechanism transmission assembly 870, wherein the composite mechanism driving member 830 is in transmission connection with one end of the lower pressing roller 820, and the composite mechanism transmission assembly 870 is disposed between the upper pressing roller 810 and the lower pressing roller 820, so that the lower pressing roller 820 can be in transmission connection with the upper pressing roller 810 for driving the composite membrane, the lithium belt and the composite steel mesh which are disposed between the upper pressing roller 810 and the lower pressing roller 820 to move.

In an alternative embodiment, the compound mechanism transmission assembly includes a compound mechanism first transmission wheel mounted on the other end of the lower pressure roller 820 and a compound mechanism second transmission wheel mounted on the upper pressure roller 810 to achieve synchronous movement of the lower pressure roller 820 and the upper pressure roller 810

In an alternative embodiment, the compound mechanism drive assembly includes a compound mechanism belt coupled between the compound mechanism first drive pulley and the compound mechanism second drive pulley.

In an alternative embodiment, the composite mechanism mounting frame comprises a composite mechanism fixing frame 840 and a composite mechanism moving frame 850 movably mounted on the composite mechanism fixing frame 840, wherein the lower pressing roller 820 is mounted on the composite mechanism moving frame 850, and the upper pressing roller 810 is mounted on the composite mechanism fixing frame 840, that is, the lower pressing roller 820 can control the gap between the upper pressing roller 810 by adjusting the distance between the composite mechanism moving frame 850 and the composite mechanism fixing frame 840, so as to achieve the pressing of the composite diaphragm, the lithium belt and the composite steel mesh.

In an alternative embodiment, the composite mechanism moving frame 850 is provided with a first moving frame avoiding hole, wherein the upper pressing roller 810 is connected to the composite mechanism fixing frame 840 after passing through the first moving frame avoiding hole, and at the same time, the height position of the composite mechanism moving frame 850 can be adjusted relative to the composite mechanism fixing frame 840.

In an alternative embodiment, the composite mechanism mount 840 is provided with a first mount avoiding hole, and the lower press roller 820 passes through the first mount avoiding hole and then is connected to the first drive wheel of the composite mechanism driving assembly, thereby once again ensuring that the composite mechanism movable mount 850 can adjust the height position relative to the composite mechanism mount 840.

In an alternative embodiment, the composite-mechanism mount includes a mount connector, one end of which is fixed to the composite-mechanism mount 840 and the other end of which is connected to the composite-mechanism movable frame 850.

In this embodiment, the mounting bracket connection member is a cylinder, which is fixed to the composite mechanism fixed bracket 840, and a piston rod of the cylinder is connected to the composite mechanism movable bracket 850, so as to provide sufficient power for the movement of the composite mechanism movable bracket 850.

In an alternative embodiment, the composite mechanism mounting frame includes a mounting frame adjuster 860, and the mounting frame adjuster 860 is connected between the composite mechanism fixing frame 840 and the composite mechanism moving frame 850, and is used for adjusting the position of the composite mechanism moving frame 850, so as to further control the gap between the lower pressure roller 820 and the upper pressure roller 810, and is used for implementing the lamination of the composite diaphragm, the lithium ribbon and the composite steel mesh.

In an optional embodiment, the negative electrode production apparatus includes a negative electrode supply mechanism 5000, and the negative electrode supply mechanism 5000 includes a negative electrode deviation rectifying assembly 5020 and a negative electrode supply assembly, wherein the negative electrode sheet enters the negative electrode supply assembly after passing through the negative electrode deviation rectifying assembly, and the negative electrode supply assembly conveys the negative electrode sheet to the winding mechanism 3000 for winding.

In this embodiment, the negative supply assembly includes a negative supply jaw assembly 5040 and a negative supply drive assembly 5050, wherein the negative supply jaw assembly 5040 is in driving connection with the negative supply drive assembly 5050 such that the negative supply drive assembly 5050 can drive the negative supply jaw assembly 5040 to convey the negative tab rectified by the negative rectification assembly 5020 to the winding mechanism 3000 of the winder for winding.

In an optional embodiment, the negative electrode deviation rectifying assembly 5020 comprises a negative electrode deviation rectifying support seat and a negative electrode deviation rectifying adjusting piece, the negative electrode deviation rectifying adjusting piece is installed on the negative electrode deviation rectifying support seat, and the negative electrode deviation rectifying support seat is connected with the negative electrode supply assembly.

In an alternative embodiment, the negative supply assembly includes a negative supply mount on which the negative supply jaw assembly 5040 and the negative supply drive assembly 5050 are mounted, wherein the negative supply mount is coupled to the negative deflection assembly 5020.

In an alternative embodiment, the cathode feed assembly includes cathode feed rollers 5030, and the cathode feed rollers 5030 are mounted on the cathode feed mount such that the cathode sheet can pass through the cathode feed rollers 5030 and be gripped by the cathode feed jaw assembly 5040.

In an alternative embodiment, the negative supply assembly includes a negative supply cutter 5060, and a negative supply cutter 5060 is mounted at the other end of the negative supply mount from the negative supply roller 5030 for cutting the negative sheet.

In an alternative embodiment, the negative supply drive assembly includes a negative supply drive member and a negative supply drive member, the negative supply drive member being drivingly connected to the negative supply jaw assembly by the negative supply drive member for driving movement of the negative supply jaw assembly.

Specifically, the negative supply drive includes a negative supply lead screw shaft and a negative supply lead screw nut engaged with the negative supply lead screw shaft, wherein the negative supply jaw assembly is connected to the negative supply lead screw nut.

In an alternative embodiment, the cathode supply drive assembly includes a cathode supply guide assembly by which the cathode supply jaw assembly is mounted on the cathode supply mount, the cathode supply guide assembly providing the guide.

Specifically, the negative electrode supply guide assembly comprises a negative electrode supply slide rail and a negative electrode supply slide block matched with the negative electrode supply slide rail, wherein the negative electrode supply slide rail is fixed on the negative electrode supply mounting seat, and the negative electrode supply clamping jaw assembly is connected with the negative electrode supply slide block.

In an alternative embodiment, the anode feed mechanism includes an anode feed pinch roller 5010, and the anode feed pinch roller 5010 is disposed on a side of the anode deflection assembly 5020 away from the anode feed assembly.

In an alternative embodiment, the negative electrode production apparatus includes a negative electrode front end membrane unwinding mechanism 900, wherein a negative electrode front end membrane on the negative electrode front end membrane unwinding mechanism 900 is used to seal the front end of the negative electrode sheet.

Specifically, negative front end diaphragm unwinding mechanism 900 includes that negative front end diaphragm places subassembly, negative front end diaphragm tension assembly and negative front end diaphragm cutting assembly 970, and wherein, negative front end diaphragm places the subassembly and is used for placing negative front end diaphragm for the negative front end diaphragm can be laminated at the front end of negative pole piece behind negative front end diaphragm tension assembly, and negative front end diaphragm cutting assembly 970 is used for excising the negative front end diaphragm of laminating behind the negative pole piece.

It should be noted that the negative electrode sheet may be driven by the negative electrode supply jaw assembly 5040 to be attached at its front end by the negative electrode front end diaphragm, or the negative electrode front end diaphragm may be actively moved toward the negative electrode sheet so that the negative electrode front end diaphragm can be attached at the front end of the negative electrode sheet, which is not limited in this application.

In an optional embodiment, the negative electrode front end membrane unwinding mechanism comprises a membrane cutting and supporting assembly, and the membrane cutting and supporting assembly is used for attaching the negative electrode front end membrane to the front end of the negative electrode piece.

Specifically, the diaphragm cuts bearing subassembly includes that diaphragm cuts bearing drive piece 850 and diaphragm and cuts bearing support 940, and wherein, diaphragm cuts bearing drive piece 950 and drives diaphragm and cuts bearing support 940 and laminate the front end at the negative pole piece with negative pole front end diaphragm support.

In an optional embodiment, a support bracket opening is formed in the diaphragm cutting support bracket 940, and the size of the support bracket opening is adapted to the thickness of the negative electrode sheet, so that the negative electrode front-end diaphragm is attached to the front end of the negative electrode sheet.

In an alternative embodiment, the negative front diaphragm tension assembly includes a negative front diaphragm tension roller 930 and a negative front diaphragm clamping jaw assembly 960, wherein the negative front diaphragm clamping jaw 960 clamps the negative sheet passing through the negative front diaphragm tension roller 930 above the front end of the negative sheet, so that the diaphragm trimming support driving member 950 drives the diaphragm trimming support bracket 940 to attach the negative front diaphragm to the front end of the negative sheet.

In an alternative embodiment, the negative front diaphragm gripper assembly 960 includes a negative front diaphragm gripper member and a negative front diaphragm gripper member, wherein the negative front diaphragm gripper member is drivingly connected to the negative front diaphragm gripper member for driving the negative front diaphragm gripper member to move the negative sheet over the front end of the negative sheet.

In an alternative embodiment, the front diaphragm cut assembly 970 includes a front diaphragm cut drive and a front diaphragm cut, wherein the front diaphragm cut drive is drivingly connected to the front diaphragm cut.

In an alternative embodiment, the negative front separator placement assembly includes a negative front separator placement roll 910, the negative front separator placement roll 910 being used to place the negative front separator.

In an alternative embodiment, the negative front end membrane placing assembly includes a negative front end membrane unwinding motor 920, and the negative front end membrane unwinding motor 920 is in transmission connection with the negative front end membrane placing material roll 910 for driving the negative front end membrane placing material roll 910 to rotate.

In an optional embodiment, the negative front-end membrane unwinding mechanism further includes a negative front-end membrane mounting plate, wherein the negative front-end membrane placing assembly, the negative front-end membrane tension assembly and the negative front-end membrane cutting assembly are sequentially mounted on the negative front-end membrane mounting plate, and the negative front-end membrane mounting plate is mounted on the mounting panel.

In an alternative embodiment, the winding machine includes a stop-glue mechanism 4000, and the stop-glue on the stop-glue mechanism 4000 is used for coating the outer sides of the wound negative electrode sheet and the wound positive electrode sheet.

Specifically, stop gluey mechanism 4000 places material book 4010, stops gluey direction subassembly 4020 and stop gluey cutting member 4030 including the stop glue, and wherein, stop glue is placed and is placed in the material book 4010 is placed to the stop glue, then through stopping gluey direction subassembly 4020 carry to stop gluey cutting member 4030 in, stop gluey cladding behind negative pole piece and positive pole piece, stop gluey cutting member 4030 will stop gluey cutting off.

In an alternative embodiment, the negative electrode production apparatus includes a negative electrode tension mechanism 700, the negative electrode tension mechanism 700 includes a negative electrode tension floating roller 710 and a linear potentiometer 730, the negative electrode tension floating roller 710 is connected to the linear potentiometer 730, so that when the speed of the negative electrode sheet passing through the negative electrode tension floating roller 710 is too fast, the linear potentiometer 730 can sense that the negative electrode tension floating roller 710 rises, thereby controlling the conveying speed of the negative electrode sheet; when the speed of the negative plate passing through the negative tension floating roller 710 is too slow, the linear potentiometer 730 can sense the decrease of the negative tension floating roller 710, and adjust the conveying speed of the negative plate again.

In an alternative embodiment, the negative tension mechanism 700 includes a negative tension fixing roller disposed opposite to the negative tension floating roller 710, so that the negative sheet passes through the negative tension floating roller 710 and the negative tension fixing roller and then is conveyed to the negative supply mechanism.

In this embodiment, the negative tension mechanism 700 includes two negative tension floating plates 720, the number of the negative tension fixing rollers and the negative tension floating rollers 710 is two, the two negative tension floating rollers 710 are disposed at two ends of the negative tension floating plates 720, the negative tension floating plates 720 are mounted on the mounting panel through the negative tension sliding rails 740, so that the negative tension floating rollers 710 can float relative to the mounting panel, and the linear potentiometer 730 can sense the rising or falling of the negative tension floating rollers 710 for adjusting the conveying speed of the negative plate.

In an alternative embodiment, negative tension mechanism 700 includes a position sensor 750, and position sensor 750 includes an upper position sensor 751 and a lower position sensor 752 for sensing the position of negative tension float plate 720, respectively.

In an alternative embodiment, the negative tension mechanism 700 includes a negative tension pinch roller 760, and the negative tension pinch roller 760 is used to adjust the tightness of the negative sheet.

In an alternative embodiment, the winding machine includes a winding mechanism 3000, the winding mechanism 3000 is provided with a winding assembly 3010, a winding cutter 3030, a winding discharge assembly 3040 and a winding clamp 3020, the negative and positive electrode sheets are wound by the winding assembly 3010 after being clamped by the winding clamp 3020, and the winding cutter 3030 is used for cutting the negative and positive electrode sheets and discharging the negative and positive electrode sheets by the winding discharge assembly 3040 after the winding is completed.

In the description of the present application, it is to be noted that the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected unless otherwise explicitly stated or limited. Either mechanically or electrically. Either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact of the first and second features, or may comprise contact of the first and second features not directly but through another feature in between. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The above disclosure provides many different embodiments or examples for implementing different structures of the application. The components and arrangements of specific examples are described above to simplify the present disclosure. Of course, they are merely examples and are not intended to limit the present application. Moreover, the present application may repeat reference numerals and/or letters in the various examples, such repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. In addition, examples of various specific processes and materials are provided herein, but one of ordinary skill in the art may recognize applications of other processes and/or use of other materials.

In the description herein, references to the description of the terms "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present application. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Claims (10)

1. The negative electrode supply mechanism is used in a winding machine for producing lithium batteries and is characterized by comprising a negative electrode deviation rectifying assembly and a negative electrode supply assembly, wherein the negative electrode supply assembly comprises a negative electrode supply clamping jaw assembly and a negative electrode supply driving assembly, and the negative electrode supply clamping jaw assembly is in transmission connection with the negative electrode supply driving assembly, so that the negative electrode supply driving assembly can drive the negative electrode supply clamping jaw assembly to convey a negative electrode sheet subjected to deviation rectifying by the negative electrode deviation rectifying assembly to the winding mechanism of the winding machine for winding.

2. The negative pole supply mechanism of claim 1, wherein the negative pole deviation rectifying assembly comprises a negative pole deviation rectifying support seat and a negative pole deviation rectifying adjusting member, the negative pole deviation rectifying adjusting member is mounted on the negative pole deviation rectifying support seat, and the negative pole deviation rectifying support seat is connected with the negative pole supply assembly.

3. The negative supply mechanism of claim 1, wherein the negative supply assembly comprises a negative supply mount, the negative supply jaw assembly and the negative supply drive assembly are mounted on the negative supply mount, and the negative supply mount is coupled to a negative deflection assembly.

4. The negative supply mechanism of claim 3, wherein the negative supply assembly comprises a negative supply roller, the negative supply roller being mounted on the negative supply mount such that a negative sheet can pass over the negative supply roller for gripping by the negative supply jaw assembly.

5. The negative electrode feeding mechanism according to claim 4, wherein the negative electrode feeding assembly includes a negative electrode feeding cutter mounted at the other end of the negative electrode feeding mount from the negative electrode feeding roller for cutting the negative electrode sheet.

6. The negative supply mechanism of claim 1, wherein the negative supply drive assembly comprises a negative supply drive member and a negative supply drive member, the negative supply drive member being drivingly connected to the negative supply jaw assembly via the negative supply drive member.

7. The negative supply mechanism of claim 6, wherein the negative supply drive comprises a negative supply lead shaft and a negative supply lead nut engaged with the negative supply lead shaft, the negative supply jaw assembly being connected to the negative supply lead nut.

8. The negative feed mechanism of claim 3, wherein the negative feed drive assembly comprises a negative feed guide assembly, and the negative feed jaw assembly is mounted to the negative feed mount via the negative feed guide assembly.

9. The negative supply mechanism of claim 8, wherein the negative supply guide assembly comprises a negative supply rail and a negative supply slide engaged with the negative supply rail, the negative supply rail being secured to the negative supply mount, the negative supply jaw assembly being coupled to the negative supply slide.

10. The negative supply mechanism of claim 1, wherein the negative supply mechanism comprises a negative supply pressure roller disposed on a side of the negative rectification assembly away from the negative supply assembly.

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