CN216750032U

CN216750032U - Square lithium battery winding machine

Info

Publication number: CN216750032U
Application number: CN202220045958.2U
Authority: CN
Inventors: 彭磊
Original assignee: Guangdong Kailong Intelligent Technology Co ltd
Current assignee: Guangdong Kailong Intelligent Technology Co ltd
Priority date: 2022-01-08
Filing date: 2022-01-08
Publication date: 2022-06-14
Anticipated expiration: 2032-01-08

Abstract

The utility model discloses a square lithium battery winding machine which comprises a rack panel, and a first diaphragm unwinding mechanism, a second diaphragm unwinding mechanism, a first pole piece unwinding mechanism, a second pole piece unwinding mechanism, a pole piece feeding and cutting mechanism, a pre-winding mechanism, a gluing mechanism, a diaphragm cutting mechanism and a discharging mechanism which are arranged on the rack panel. The automatic winding production of the battery cell is realized, the production efficiency is effectively improved, the structural layout is reasonable, the processing and manufacturing cost is effectively reduced, the occupied area is reduced, and the production quality of the battery cell can be ensured.

Description

Square lithium battery winding machine

Technical Field

The utility model relates to the field of lithium battery production, in particular to a square lithium battery winding machine.

Background

The lithium battery has the characteristics of high energy density, portability and portability, and is actively used as an energy carrier in the fields of communication, digital cameras, video cameras, notebooks and the like. The production efficiency of the battery and the convenience of the operation of the staff gradually become key factors influencing the production of the lithium battery, the control on each production process of the lithium battery needs to be strengthened, and the product quality and the operation convenience of each production process are improved. The winding machine winds the diaphragms of the positive pole piece and the negative pole piece mutually in a specific layer sequence to form the battery cell. The existing winding machine is low in winding efficiency, complex in operation, unstable in production of lithium battery cores and incapable of ensuring production quality.

SUMMERY OF THE UTILITY MODEL

The utility model provides a winding machine for square lithium batteries, which aims to solve the problems in the prior art.

In order to solve the technical problems, the technical scheme adopted by the utility model is as follows: a square lithium battery winder comprises a rack panel, and further comprises a first diaphragm unwinding mechanism, a second diaphragm unwinding mechanism, a first pole piece unwinding mechanism, a second pole piece unwinding mechanism, a pole piece feeding and cutting mechanism, a pre-winding mechanism, a gluing mechanism, a diaphragm cutting mechanism and a discharging mechanism which are arranged on the rack panel; the device comprises a first diaphragm unwinding mechanism, a first pole piece unwinding mechanism, a second diaphragm unwinding mechanism and a second pole piece unwinding mechanism which are sequentially arranged clockwise, wherein the first diaphragm unwinding mechanism and the second diaphragm unwinding mechanism are used for respectively conveying two diaphragms of a battery cell to a winding mechanism, the first pole piece unwinding mechanism and the second pole piece unwinding mechanism are used for respectively sequentially unwinding a positive plate and a negative plate, measuring the length, brushing powder and removing iron and feeding the positive plate and the negative plate to a pole piece feeding and cutting mechanism, the pole piece feeding and cutting mechanism is respectively butted with the corresponding first pole piece unwinding mechanism and the second pole piece unwinding mechanism and feeds the positive plate and the negative plate to the winding mechanism, the winding mechanism is used for winding the positive plate and the negative plate to a set length and then cutting the positive plate and the negative plate, and the pre-winding mechanism is used for pre-winding the diaphragms, the positive plate, the diaphragms and the negative plate before being fed into the winding mechanism, winding mechanism is used for convoluteing diaphragm, positive plate, diaphragm, the negative pole piece after the prewinding, diaphragm cutting mechanism is used for cutting off the diaphragm of coiling the completion, rubberizing mechanism arranges in winding mechanism's side is used for the pairing rotation to unloading position department and has accomplished the electric core of coiling and carry out the head and the tail rubberizing, unloading mechanism with winding mechanism and rubberizing mechanism's unloading department phase-match is used for carrying out the unloading with electric core.

As a further elaboration of the above technical solution:

in the above technical scheme, the first pole piece unwinding mechanism and the second pole piece unwinding mechanism include a deviation-rectifying unwinding assembly, a tension assembly, at least one brush powder assembly, at least one iron-removing assembly and a length measuring assembly, which are sequentially arranged along the feeding direction of the pole pieces.

In the above technical scheme, the tension subassembly includes that roller frame, tension cross roller, tension swing arm axle and the first actuating cylinder that drives, cross the roller frame with the first actuating cylinder that drives is all installed on the rack panel, tension is crossed the roller and is installed on crossing the roller frame, the one end of tension swing arm axle is installed on the rack panel, and the other end is installed on crossing the roller frame, first actuating cylinder that drives with the transmission of tension swing arm axle is connected to cross the roller swing and adjust the tension of pulling the pole piece through crossing roller frame drive tension.

In the above technical scheme, the brush powder subassembly includes brush powder box, driving motor, compression roller and brush powder roller, compression roller, brush powder box and driving motor all installs on the frame panel, the brush powder roller is installed place in on driving motor's the output shaft in the brush powder box, the compression roller presses the pole piece and supports to brush the powder dust removal to the pole piece on the brush powder roller.

In the technical scheme, winding mechanism includes that the triangle goes into the piece ware, inserts and dials formula winding assembly and revolution subassembly, the revolution subassembly with the triangle goes into the piece ware and all installs on the panel of the frame, it installs respectively to insert to dial formula winding assembly on two stations of revolution subassembly and rotate between the material feeding position and the unloading position of diaphragm, positive plate, negative pole piece in turn, the triangle goes into the piece ware and arranges in the material feeding position top of revolution subassembly and with positive plate, negative pole piece and diaphragm leading-in to inserting to dial formula winding assembly on.

In the technical scheme, the adhesive tape sticking mechanism comprises an adhesive tape bottom plate, a vertical plate, an adhesive tape disc, a pre-adhesive component, an adhesive tape cutting component, an adhesive tape pulling component and an adhesive tape sticking component, wherein the adhesive tape bottom plate is arranged on the rack panel, the vertical plate is vertically arranged on the adhesive tape bottom plate, the adhesive tape disc, the pre-adhesive component, the adhesive tape cutting component and the adhesive tape pulling component are sequentially arranged along the extending direction of one side face of the vertical plate, the pre-adhesive component and the adhesive tape pulling component are matched to pull the adhesive tape from the adhesive tape disc to a set length, the adhesive tape cutting component is used for cutting the adhesive tape, and the adhesive tape sticking component is used for sticking the cut adhesive tape to the electric core.

In the above technical scheme, the rubber cutting assembly includes moulding cylinder, briquetting, rubber cutting cylinder and cutter, moulding cylinder with the rubber cutting cylinder is all installed on the frame panel, the briquetting is installed on the output shaft of moulding cylinder, the cutter is installed on the output shaft of rubber cutting cylinder.

Compared with the prior art, the utility model has the beneficial effects that: the battery cell for producing the square lithium battery comprises a first diaphragm unwinding mechanism, a second diaphragm unwinding mechanism, a first pole piece unwinding mechanism, a second pole piece unwinding mechanism, a pole piece feeding and cutting mechanism, a pre-winding mechanism, a rubberizing mechanism, a diaphragm cutting mechanism and a discharging mechanism, so that the automatic winding production of the battery cell is realized, the production efficiency is effectively improved, the structural layout is reasonable, the processing and manufacturing cost is effectively reduced, the occupied area is reduced, and the production quality of the battery cell can be ensured.

Drawings

FIG. 1 is a front view of the present invention;

fig. 2 is a schematic structural diagram of the present invention.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

The embodiments described by referring to the drawings are exemplary and intended to be used for explaining the present application and are not to be construed as limiting the present application. In the description of the present application, it is to be understood that the terms "center," "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 convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and thus should not be considered limiting. 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 to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise. In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral connections; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. 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. The first feature being "under," "beneath," and "under" the second feature includes the first feature being directly above and obliquely above the second feature, or simply meaning that the first feature is at a lesser level than the second feature.

As shown in fig. 1-2, a square lithium battery winding machine is used for producing cells of square lithium batteries. The winding machine comprises a rack panel 1 and further comprises a first diaphragm unwinding mechanism 2, a second diaphragm unwinding mechanism 3, a first pole piece unwinding mechanism 4, a second pole piece unwinding mechanism 5, a pole piece feeding and cutting mechanism 6, a pre-winding mechanism 7, a winding mechanism 8, a rubberizing mechanism 9, a diaphragm cutting mechanism 10 and a discharging mechanism 11 which are arranged on the rack panel 1. The device comprises a first diaphragm unwinding mechanism 2, a first pole piece unwinding mechanism 4, a second diaphragm unwinding mechanism 3 and a second pole piece unwinding mechanism 5 which are sequentially arranged clockwise, wherein the first diaphragm unwinding mechanism 2 and the second diaphragm unwinding mechanism 3 are used for respectively conveying two diaphragms of a battery cell to a winding mechanism, the first pole piece unwinding mechanism 4 and the second pole piece unwinding mechanism 5 are used for respectively sequentially unwinding a positive plate and a negative plate, measuring the length, brushing powder and removing iron and feeding the positive plate and the negative plate to a pole piece feeding mechanism 6, the pole piece feeding mechanism 6 is respectively butted with the corresponding first pole piece unwinding mechanism 4 and the corresponding second pole piece unwinding mechanism 5 and feeds the positive plate and the negative plate to the winding mechanism, the winding mechanism 8 is cut off after winding the positive plate and the negative plate to a set length, and the pre-winding mechanism 7 is used for pre-winding the diaphragms, the positive plate, the diaphragms and the negative plates before being fed to the winding mechanism 8, winding mechanism 8 is used for convoluteing diaphragm, positive plate, diaphragm, the negative pole piece after the prewinding, diaphragm cutting mechanism 10 is used for cutting off the diaphragm of coiling the completion, rubberizing mechanism 9 arranges in winding mechanism 8's side is used for the pairing rotation to unloading position department and has accomplished the electric core of coiling and carry out the head and the tail rubberizing, unloading mechanism 11 with winding mechanism 8 and rubberizing mechanism 9's unloading department phase-match are used for carrying out the unloading with electric core. The specific structures and operation principles of the first diaphragm unwinding mechanism 2, the second diaphragm unwinding mechanism 3, the pole piece feeding and cutting mechanism 6, the pre-winding mechanism 7, the diaphragm cutting mechanism 10 and the blanking mechanism 11 are well known technologies that should be known to those skilled in the art, and therefore, the detailed description thereof is omitted here.

In this embodiment, as shown in fig. 1, the first pole piece unwinding mechanism 4 and the second pole piece unwinding mechanism 5 include a deviation rectification unwinding assembly 41, a tension assembly 42, at least one brushing assembly 43, at least one iron removal assembly 44, and a length measurement assembly 45, which are sequentially arranged along a feeding direction of the pole pieces. The deviation-rectifying unreeling assembly 41 unreels and rectifies the pole piece coil, so that stable feeding and feeding accuracy of the pole piece are guaranteed. The tension assembly 42 is used for adjusting the tension of the unreeling of the pole piece, so that the pole piece can be smoothly and reliably loaded. The brush powder assembly 43 is used for performing electrostatic elimination and dust removal on the pole pieces. The iron removal assembly 44 is used for adsorbing iron filings, and avoids the influence of the iron filings on the pole piece caused by self-discharge. The length measuring assembly 45 is used for measuring the length of the unreeled pole piece, and the length required by pole piece reeling is ensured. Specifically, tension subassembly 42 includes roller frame, tension cross roller, tension swing arm axle and the first actuating cylinder that drives, cross the roller frame with the first actuating cylinder that drives is all installed on the frame panel, tension is crossed the roller and is installed cross on the roller frame, the one end of tension swing arm axle is installed on the frame panel, and the other end is installed cross on the roller frame, first actuating cylinder with tension swing arm axle transmission is connected to drive the roller swing and adjust the tension of pulling the pole piece through crossing the roller frame. Specifically, brush powder subassembly 43 includes brush powder box, driving motor, compression roller and brush powder roller, compression roller, brush powder box and driving motor all installs on the frame panel, the brush powder roller is installed place in on driving motor's the output shaft in the brush powder box, the compression roller presses the pole piece and supports to brush powder dust removal to the pole piece on the brush powder roller. The specific structures and the operation principles of the deviation rectifying and unwinding assembly 41, the iron removing assembly 44 and the length measuring assembly 45 are well known to those skilled in the art.

In this embodiment, as shown in fig. 2, the winding mechanism 8 includes a triangle sheet feeder 81, a plug-pull winding assembly 82 and a revolution assembly 83, the revolution assembly 83 and the triangle sheet feeder 81 are both installed on the frame panel 1, the plug-pull winding assembly 82 is respectively installed on two stations of the revolution assembly 83 and alternately rotates between the feeding position and the discharging position of the diaphragm, the positive plate and the negative plate, the triangle sheet feeder 81 is arranged above the feeding position of the revolution assembly 83 and guides the positive plate, the negative plate and the diaphragm to the plug-pull winding assembly 82. The specific structure and operation principle of the insertion and extraction winding assembly 82 and the revolution assembly 83 are well known to those skilled in the art.

In this embodiment, as shown in fig. 2, the adhesive applying mechanism 9 includes an upper adhesive base plate 91, an upright plate 92, an adhesive tape tray, a pre-stretching assembly, a adhesive cutting assembly 93, an adhesive pulling assembly, and an adhesive applying assembly 94, the upper adhesive base plate 91 is mounted on the rack panel 1, the upright plate 92 is vertically mounted on the upper adhesive base plate 91, the adhesive tape tray, the pre-stretching assembly, the adhesive cutting assembly 93, and the adhesive pulling assembly are sequentially disposed along an extending direction of a side surface of the upright plate, the pre-stretching assembly and the adhesive pulling assembly cooperate to pull the adhesive tape from the adhesive tape tray to a set length, the adhesive cutting assembly 93 is configured to cut the adhesive tape, and the adhesive applying assembly 94 is configured to attach the cut adhesive tape to the electrical core. Specifically, cut gluey subassembly 93 includes moulding cylinder 931, briquetting 932, cuts gluey cylinder 933 and cutter 934, moulding cylinder 931 with it all installs to cut gluey cylinder 933 on the frame panel 1, briquetting 932 installs on moulding cylinder 931's the output shaft, cutter 934 installs cut gluey cylinder 933's output shaft. The pressing block 932 is driven by the glue pressing cylinder 931 to press the adhesive tape tightly, and then the cutting knife 934 is driven by the adhesive cutting cylinder 933 to cut the adhesive tape. Wherein the specific structure and action principle of the pre-drawing glue assembly, the pulling glue assembly and the gluing assembly are well known to those skilled in the art.

The automatic winding device comprises a first diaphragm unwinding mechanism 2, a second diaphragm unwinding mechanism 3, a first pole piece unwinding mechanism 4, a second pole piece unwinding mechanism 5, a pole piece feeding and cutting mechanism 6, a pre-winding mechanism 7, a winding mechanism 8, a rubberizing mechanism 9, a diaphragm cutting mechanism 10 and a discharging mechanism 11, realizes automatic winding production of a battery cell, effectively improves production efficiency, is reasonable in structural layout, effectively reduces processing and manufacturing cost, reduces occupied area, and can guarantee production quality of the battery cell.

The technical scope of the present invention is not limited to the above embodiments, and any modifications, equivalent variations and modifications made to the above embodiments according to the technical spirit of the present invention still fall within the technical scope of the present invention.

Claims

1. A square lithium battery winder comprises a rack panel and is characterized by further comprising a first diaphragm unwinding mechanism, a second diaphragm unwinding mechanism, a first pole piece unwinding mechanism, a second pole piece unwinding mechanism, a pole piece feeding and cutting mechanism, a pre-winding mechanism, a gluing mechanism, a diaphragm cutting mechanism and a discharging mechanism, wherein the first diaphragm unwinding mechanism, the second diaphragm unwinding mechanism, the first pole piece unwinding mechanism, the second pole piece unwinding mechanism, the pole piece feeding and cutting mechanism, the pre-winding mechanism, the gluing mechanism, the diaphragm cutting mechanism and the discharging mechanism are arranged on the rack panel; the device comprises a first diaphragm unwinding mechanism, a first pole piece unwinding mechanism, a second diaphragm unwinding mechanism and a second pole piece unwinding mechanism which are sequentially arranged clockwise, wherein the first diaphragm unwinding mechanism and the second diaphragm unwinding mechanism are used for respectively conveying two diaphragms of a battery cell to a winding mechanism, the first pole piece unwinding mechanism and the second pole piece unwinding mechanism are used for respectively sequentially unwinding a positive plate and a negative plate, measuring the length, brushing powder and removing iron and feeding the positive plate and the negative plate to a pole piece feeding and cutting mechanism, the pole piece feeding and cutting mechanism is respectively butted with the corresponding first pole piece unwinding mechanism and the second pole piece unwinding mechanism and feeds the positive plate and the negative plate to the winding mechanism, the winding mechanism is used for winding the positive plate and the negative plate to a set length and then cutting the positive plate and the negative plate, and the pre-winding mechanism is used for pre-winding the diaphragms, the positive plate, the diaphragms and the negative plates before being fed to the winding mechanism, winding mechanism is used for convoluteing diaphragm, positive plate, diaphragm, the negative pole piece after the prewinding, diaphragm cutting mechanism is used for cutting off the diaphragm of coiling the completion, rubberizing mechanism arranges in winding mechanism's side is used for the pairing rotation to unloading position department and has accomplished the electric core of coiling and carry out the head and the tail rubberizing, unloading mechanism with winding mechanism and rubberizing mechanism's unloading department phase-match is used for carrying out the unloading with electric core.

2. The square lithium battery winding machine as claimed in claim 1, wherein the first pole piece unwinding mechanism and the second pole piece unwinding mechanism comprise a deviation rectifying and unwinding assembly, a tension assembly, at least one brushing assembly, at least one iron removing assembly and a length measuring assembly, which are sequentially arranged along a feeding direction of the pole pieces.

3. The square lithium battery winding machine according to claim 2, wherein the tension assembly comprises a roller frame, a tension roller, a tension swing arm shaft and a first driving cylinder, the roller frame and the first driving cylinder are both mounted on the frame panel, the tension roller is mounted on the roller frame, one end of the tension swing arm shaft is mounted on the frame panel, the other end of the tension swing arm shaft is mounted on the roller frame, and the first driving cylinder is in transmission connection with the tension swing arm shaft so as to drive the tension roller to swing through the roller frame to adjust the tension of the traction pole piece.

4. The square lithium battery winding machine as claimed in claim 2, wherein the brush powder assembly comprises a brush powder box, a driving motor, a pressing roller and a brush powder roller, the pressing roller, the brush powder box and the driving motor are all installed on the frame panel, the brush powder roller is installed on an output shaft of the driving motor and is arranged in the brush powder box, and the pressing roller presses the pole piece against the brush powder roller to brush powder and remove dust on the pole piece.

5. The winding machine for the square lithium battery as claimed in claim 1, wherein the winding mechanism comprises a triangle sheet feeder, a shifting winding assembly and a revolution assembly, the revolution assembly and the triangle sheet feeder are both arranged on the frame panel, the shifting winding assembly is respectively arranged on two stations of the revolution assembly and alternately rotates between the feeding position and the discharging position of the diaphragm, the positive plate and the negative plate, and the triangle sheet feeder is arranged above the feeding position of the revolution assembly and guides the positive plate, the negative plate and the diaphragm to the shifting winding assembly.

6. The square lithium battery winding machine according to claim 1, wherein the adhesive applying mechanism comprises an adhesive applying bottom plate, a vertical plate, an adhesive tape disc, an adhesive pre-stretching assembly, an adhesive cutting assembly, an adhesive pulling assembly and an adhesive applying assembly, the adhesive applying bottom plate is mounted on the panel of the frame, the vertical plate is vertically mounted on the adhesive applying bottom plate, the adhesive tape disc, the adhesive pre-stretching assembly, the adhesive cutting assembly and the adhesive pulling assembly are sequentially arranged along an extending direction of one side face of the vertical plate, the adhesive pre-stretching assembly and the adhesive pulling assembly are matched to pull an adhesive tape to a set length from the adhesive tape disc, the adhesive cutting assembly is used for cutting the adhesive tape, and the adhesive applying assembly is used for attaching the cut adhesive tape to the battery core.

7. The square lithium battery winding machine as claimed in claim 6, wherein the glue cutting assembly comprises a glue pressing cylinder, a pressing block, a glue cutting cylinder and a cutter, the glue pressing cylinder and the glue cutting cylinder are both mounted on the frame panel, the pressing block is mounted on an output shaft of the glue pressing cylinder, and the cutter is mounted on an output shaft of the glue cutting cylinder.