CN207952962U - Pole piece die-cutting device - Google Patents

Abstract

This application involves energy storage device technical field more particularly to a kind of pole piece die-cutting devices comprising base material unreeling structure, foil unreeling structure, bindiny mechanism, laser die cutting mechanism and driving mechanism, wherein：For connecting base material and foil, the bindiny mechanism is arranged in the downstream of the base material unreeling structure and the foil unreeling structure for the bindiny mechanism；The laser die cutting mechanism is used to form lug, and the laser die cutting mechanism is arranged in the downstream of the bindiny mechanism；The driving mechanism be used for after connection the base material and the foil apply driving force, the driving mechanism is arranged in the downstream of the laser die cutting mechanism.Worker's amount of labour can be reduced using pole piece die-cutting device processing lug provided herein, and the precision for being formed by lug is higher.

Description

Pole piece die-cutting device

Technical field

This application involves energy storage device technical field more particularly to a kind of pole piece die-cutting devices.

Background technology

With the high speed development of lithium ion battery, the size of energy density and the quality of electrical property have become lithium ion The core competitiveness of battery.For switching has the battery of foil, electrical property to be effectively improved at lug position on pole piece And promotion.Currently, the process of the pole piece of this foil of transferring on base material is formed by connecting by hand generally by worker, this The amount of labour of worker can undoubtedly be increased.

Utility model content

This application provides a kind of pole piece die-cutting devices, to reduce worker's amount of labour, and improve the essence for being formed by lug Degree.

This application provides a kind of pole piece die-cutting devices comprising：

Base material unreeling structure；

Foil unreeling structure；

Bindiny mechanism, the bindiny mechanism put for connecting base material and foil, bindiny mechanism's setting in the base material Roll up the downstream of mechanism and the foil unreeling structure；

Laser die cutting mechanism, the laser die cutting mechanism are used to form lug, and the laser die cutting mechanism is arranged described The downstream of bindiny mechanism；

Driving mechanism, the driving mechanism is used for the base material and foil application driving force after connection, described Driving mechanism is arranged in the downstream of the laser die cutting mechanism.

Preferably, the laser die cutting mechanism is arranged close to the driving mechanism.

Preferably, pole piece die-cutting device provided herein further includes pole piece deviation correction mechanism, the pole piece deviation correction mechanism It is arranged between the laser die cutting mechanism and the bindiny mechanism.

Preferably, the bindiny mechanism is rubber-coated mechanism, and the rubber-coated mechanism includes drop sebific duct, and the drop sebific duct has drop Jiao Kou.

Preferably, pole piece die-cutting device provided herein further includes drying mechanism, and the drying mechanism has pole piece Dry space.

Preferably, pole piece die-cutting device provided herein further includes raw material deviation correction mechanism,

Between the base material unreeling structure and the bindiny mechanism and the foil unreeling structure and the bindiny mechanism Between be both provided with the raw material deviation correction mechanism.

Preferably, pole piece die-cutting device provided herein further includes the first tension control mechanism,

Between the base material unreeling structure and the bindiny mechanism or the foil unreeling structure and the bindiny mechanism it Between be provided with first tension control mechanism；

First tension control mechanism includes fixing roller and movable roll, and the movable roll is arranged to the relatively described fixing roller Movement.

Preferably, pole piece die-cutting device provided herein further includes garbage collection mechanism, the garbage collection mechanism It is correspondingly arranged with the laser die cutting mechanism.

Preferably, pole piece die-cutting device provided herein further includes dedusting mechanism, and the dedusting mechanism includes hairbrush, The dedusting mechanism is arranged in the downstream of the laser die cutting mechanism.

Preferably, pole piece die-cutting device provided herein further includes rolling-up mechanism and the second tension control mechanism,

The rolling-up mechanism is arranged in the downstream of the dedusting mechanism, and the rolling-up mechanism is for winding pole piece；

Second tension control mechanism is arranged between the driving mechanism and the rolling-up mechanism.

Technical solution provided by the present application can reach following advantageous effect：

In pole piece die-cutting device provided herein, driving mechanism can be by applying driving force, to make to pole piece Base material material volume and foil material volume can continuously provide base material and foil, then by bindiny mechanism, can by base material and Foil connects together, and then, by laser die cutting mechanism, can form lug on pole piece, complete the processing of this pole piece Work；Obvious, pole piece die-cutting device provided by the present application substitutes currently used manual operation using automation equipment, Pole piece and foil are combined, and form lug, thus the amount of labour of worker can be reduced.Simultaneously as will driving Mechanism, which is arranged, is held essentially constant the movement speed of the base material after connection and foil in the downstream of laser die cutting mechanism, in turn Keep the surface tension of the base material after connection and foil when by laser die cutting mechanism position identical, thereby may be ensured that The precision of lug is formed by by laser die cutting mechanism.

It should be understood that above general description and following detailed description is merely exemplary, this can not be limited Application.

Description of the drawings

The structure diagram for the pole piece die-cutting device that Fig. 1 is provided by the embodiment of the present application.

Reference numeral：

11- base material unreeling structures；

12- foil unreeling structures；

13- bindiny mechanisms；

130- drop sebific ducts；

14- laser die cuttings mechanism；

15- driving mechanisms；

16- pole piece deviation corrections mechanism；

17- drying mechanisms；

18- raw material deviation correction mechanisms；

The first tension control mechanisms of 19-；

191- fixing rollers；

192- movable rolls；

20- garbage collections mechanism；

21- dedusting mechanisms；

22- rolling-up mechanisms；

The second tension control mechanisms of 23-.

The drawings herein are incorporated into the specification and forms part of this specification, and shows the implementation for meeting the application Example, and the principle together with specification for explaining the application.

Specific implementation mode

It is described in further detail below by specific embodiment and in conjunction with attached drawing to the application.

As shown in Figure 1, the embodiment of the present application provides a kind of pole piece die-cutting device, may include base material unreeling structure 11, foil unreeling structure 12, bindiny mechanism 13, laser die cutting mechanism 14 and driving mechanism 15, wherein the setting of bindiny mechanism 13 exists The downstream of base material unreeling structure 11 and foil unreeling structure 12, base material to be connected together with foil by bindiny mechanism 13, Obvious, base material and foil after connecting are pole piece described herein；Laser die cutting mechanism 14 is arranged in bindiny mechanism 13 downstream, to form the lug of setting shape and size on this pole piece by laser die cutting mechanism 14；It is driven by being arranged Motivation structure 15, and make driving mechanism 15 to after connection base material and foil apply driving force to drive base material and foil, complete to supply Expect work, then base material is connected with foil by bindiny mechanism 13 and forms pole piece；And by the setting of driving mechanism 15 in connection machine The downstream of structure 13 so that pole piece die-cutting device provided herein can drive base material to put simultaneously by a driving mechanism 15 Mechanism 11 and foil unreeling structure 12 are rolled up, and then can ensure that the surface tension of the base material being unfolded and foil is equal, thus makes two Person is formed by the structural stability higher of pole piece after combining；Meanwhile driving mechanism 15 being arranged in laser die cutting mechanism 14 Downstream, it can also be ensured that it is located at the pole piece of 14 upstream of laser die cutting mechanism, when by laser die cutting 14 position of mechanism, Its surface tension is consistent, to when cutting pole piece by laser die cutting mechanism 14, be formed by the shape and ruler of lug It is very little to be ensured, form the higher lug of precision.

Specifically, base material unreeling structure 11 and foil unreeling structure 12 all can be similar support roller structure, sill Volume and foil material volume can be respectively sleeved on base material unreeling structure 11 and foil unreeling structure 12, and in the confession of base material and foil During material, the mode that passive type rotates may be used in base material unreeling structure 11 and foil unreeling structure 12, so as to root It is supplied according to the demand adaptability of base material during following process and foil；Driving mechanism 15 can be that motor drives transfer roller Structure, that is, drive roll, driving mechanism 15 can be to the base materials and foil after connection, i.e. pole piece provides pulling force, whole to ensure A pole piece process can be carried out continuously；It should be noted that theoretically, driving mechanism 15 can also the company of being mounted on Between connection mechanism 13 and laser die cutting mechanism 14, it is arranged in this way it is also ensured that base material is equal with the surface tension of foil, still If in this way, positioned at 15 downstream of driving mechanism pole piece surface tension you can't get unified, thus it must be increased His mechanism, such as tension adjustment mechanism, to ensure that the surface tension that pole piece is moved at laser die cutting mechanism 14 is consistent, still Tension adjustment is carried out to pole piece by tension adjustment mechanism and needs regulating time, within the period of tension adjustment, pole piece Machining accuracy will certainly be affected, thus driving mechanism 15 is arranged at the downstream of laser die cutting mechanism 14, due to driving Motivation structure 15 can be so that pole piece be moved to the holding of the surface tension at laser die cutting mechanism 14 with little need for the cost time Unanimously, therefore the machining accuracy of lug can further be promoted；Certainly, driving mechanism 15 or other have to pole piece and carry For the structure of driving force function；May include laser emitter in laser die cutting mechanism 14, and staff can preset Corresponding program allows the laser that laser emitter is sent out to be moved along setting path and setting speed, in pole piece In moving process, the lug of setting shape and size is formed on pole piece by way of laser cutting；Bindiny mechanism 13 is used for It connects together base material to form pole piece with foil, such as bonding, welding or pressing mode can be used and connect base material with foil And pole piece is formed, thus bindiny mechanism 13 can be one kind in adhering device, welder or pressing device, art technology Personnel can flexibly select according to actual demand.

It is above-mentioned it is found that in pole piece die-cutting device provided herein, base material can be driven by driving mechanism 15 simultaneously It is moved with foil, and bindiny mechanism 13 can connect together base material with foil, form pole piece, pass through laser die cutting mechanism 14 Lug can be formed on pole piece, thus pole piece die-cutting device provided herein is given up manual operation and is set using automation Standby processing pole piece, it is possible to reduce worker's amount of labour；Meanwhile by being arranged driving mechanism 15 under laser die cutting mechanism 14 Trip, it is ensured that all pole pieces positioned at 15 upstream of driving mechanism only move under the drive of driving mechanism 15, to make to be located at The pole piece of 15 upstream of driving mechanism ensures that its surface tension everywhere is equal, in the unit interval under the action of constant driving Displacement it is equal；Thus when laser die cutting mechanism 14 carries out cutting processing to pole piece, it is ensured that the machining accuracy of lug.

In order to further ensure the machining accuracy of lug, it is preferred that laser die cutting mechanism 14 can be close to driving mechanism 15 Setting.

Specifically, driving mechanism 15 is made to be arranged close to laser die cutting mechanism 14, i.e., it is die cut in pole piece provided herein In the installation process of equipment, the spatial position between driving mechanism 15 and laser die cutting mechanism 14 can be made close to each other；Meanwhile It,, can other than live-roller between driving mechanism 15 and laser die cutting mechanism 14 from the point of view of the formation of pole piece and processing sequence To be not provided with other mechanisms, with prevent because of pole piece at other aforementioned mechanisms by by cause pole piece tension to become Change；Setting may further ensure that the surface tension for the pole piece being moved at 14 position of laser die cutting mechanism is consistent in this way, in turn Keep the precision for being formed by lug higher.

Since lug is formed in the edge of pole piece, thus lead to the processing of lug because pole piece deviates in order to prevent Precision reduces, it is preferred that pole piece die-cutting device provided herein can also include pole piece deviation correction mechanism 16, pole piece deviation correction machine Structure 16 can be arranged between laser die cutting mechanism 14 and bindiny mechanism 13.

Specifically, may include deflection correction sensor in pole piece deviation correction mechanism 16, and in the process of pole piece, can control Deflection correction sensor processed is opposite with pole piece, after deflection correction sensor detects that offset occurs in pole piece, can pass through pole piece deviation correction machine Control device in structure 16 corrects the position of pole piece, to ensure that pole piece moves forward in the setting regions of live-roller, with into One step promotes the machining accuracy of lug.

Optionally, bindiny mechanism 13 can be rubber-coated mechanism, may include drop sebific duct 130 in rubber-coated mechanism, drip sebific duct 130 With glue dropping hole, in the process of pole piece, drop sebific duct 130 can be arranged in the top of base material, and can make glue dropping hole with Base material is oppositely arranged.

Specifically, rubber-coated mechanism can on base material drop coating glue, base material to be connected together with foil by glue, This mode is simple and feasible, and the structure of rubber-coated mechanism is relatively easy, and cost is relatively low.Those skilled in the art can be according to base material With the movement speed of foil, the extruded velocity and the extrusion capacity in the unit interval for selecting glue, to prevent excessive glue feelings Condition.

When connecting base material and foil by the way of glue bonding, in order to promote the speed of glue dries, to ensure base Bonding strength between material and foil, it is preferred that pole piece die-cutting device provided herein can also include drying mechanism 17, Drying mechanism 17 can be provided with pole piece drying space, and base material and foil form pole piece after connection, can pass through drying mechanism 17 pairs are formed by pole piece and dry, that is to say, that pole piece can be made to dry space by pole piece with setting speed, to complete The drying work of glue between base material and foil in pairs.

Correspondingly, in order to ensure the connection precision between base material and foil, it is preferred that pole piece cross cutting provided herein Equipment can also include raw material deviation correction mechanism 18, between base material unreeling structure 11 and bindiny mechanism 13 and foil unreeling machine Raw material deviation correction mechanism 18 can be provided between structure 12 and bindiny mechanism 13.

Specifically, it is similar to the structure of pole piece deviation correction mechanism 16, can also include that correction passes in raw material deviation correction mechanism 18 Sensor, and in the process of pole piece, the relative position of base material and foil can be provided with deflection correction sensor, with by Deflection correction sensor realizes the purpose rectified a deviation to base material and foil, to ensure that base material and foil are formed by the precision of pole piece.

Since base material and foil are two different materials, thus in the process of pole piece, even if base material and foil It is driven by same driving mechanism 15, the surface tension of the two is also likely to be present fine distinction, thus preferred, and the application is carried The pole piece die-cutting device of confession can also include the first tension control mechanism 19, can be in base material unreeling structure 11 and bindiny mechanism 13 Between or foil unreeling structure 12 and bindiny mechanism 13 between the first tension control mechanism 19 is set, to pass through the first tension control Mechanism 19 processed adjusts base material and the surface tension of foil to identical；First tension control mechanism 19 may include 191 He of fixing roller Movable roll 192, and movable roll 192 can be arranged to be relatively fixed the movement of roller 191.

Specifically, may include a fixing roller 191 and two movable rolls 192 in the first tension control mechanism 19, and it is solid Fixed roll 191 can be with respect to the rest of pole piece processing platform, and can be arranged with closed-loop drive band in two movable rolls 192, Unequal in base material and foil surface tension, two movable rolls 192 can be relatively fixed the rotation of roller 191, to reach To adjusting base material and foil surface tension to equal purpose.

Since lug is to be formed by cutting some materials on pole piece, thus will certainly be produced in the process of lug Raw pole piece waste material, it is preferred that pole piece die-cutting device provided herein can also include garbage collection mechanism 20, garbage collection Mechanism 20 can be correspondingly arranged with laser die cutting mechanism 14.

Specifically, garbage collection mechanism 20 can be waste material bucket, and garbage collection mechanism 20 can be arranged in laser die cutting The lower section of mechanism 14, in this way setting allow waste material under the effect of gravity automatically into garbage collection mechanism 20, Complete the work of garbage collection.

It is above-mentioned it is found that lug is formed by way of cutting, thus will certainly exist because cutting at lug position on pole piece The dust for cutting and generating, it is preferred that pole piece die-cutting device provided herein can also include dedusting mechanism 21, dedusting mechanism May include hairbrush in 21, dedusting mechanism 21 can be arranged in the downstream of laser die cutting mechanism 14.

Specifically, the hairbrush in dedusting mechanism 21 can be mounted on to the mobile road of the pole piece with lug by mounting base On diameter, in order to keep cleaning effect more preferable, hairbrush can be respectively provided in the upper and lower surface of pole piece；At the same time it can also which elastic component is arranged, Elastic component can apply certain pressure to hairbrush, and then hairbrush is allow to apply certain pressure to pole piece, to promote dedusting Cleaning effect.

In order to collect the pole piece machined, so as to the progress of following process work, it is preferred that the application is carried The pole piece die-cutting device of confession can also include rolling-up mechanism 22, and rolling-up mechanism 22 is arranged in the downstream of dedusting mechanism 21, to pass through The pole piece for being formed with lug is wound into pole piece material volume by rolling-up mechanism 22；Correspondingly, in order to adjust driving mechanism 15 and winder The surface tension of pole piece between structure 22, pole piece die-cutting device provided herein are also provided with the second tension control machine Structure 23, the second tension control mechanism 23 can be arranged between driving mechanism 15 and rolling-up mechanism 22.

Specifically, may include that wind-up roll and adjustable speed motor add under the drive of adjustable speed motor in rolling-up mechanism 22 Pole piece after the completion of work can be wound onto on wind-up roll；By the way that second is arranged between driving mechanism 15 and rolling-up mechanism 22 Power control mechanism 23 can adjust the tightness of pole piece；Meanwhile adjustable speed motor can also be with the second tension control mechanism 23 Between constitute feedback regulation mechanism, when the second tension control mechanism 23 detects the overtension of pole piece, adjustable speed motor drop Low rotary speed；Opposite, when the second tension control mechanism 23 detects that the tension of pole piece is too small, adjustable speed motor can fit When improve rotary speed, to ensure that rolling-up mechanism 22 can work normally, and will not because adjustable speed motor there are due to change Movement speed of the pole piece under the drive of driving mechanism 15.

The foregoing is merely the preferred embodiments of the application, are not intended to limit this application, for the skill of this field For art personnel, the application can have various modifications and variations.Within the spirit and principles of this application, any made by repair Change, equivalent replacement, improvement etc., should be included within the protection domain of the application.

Claims (10)

1. a kind of pole piece die-cutting device, which is characterized in that including：

Base material unreeling structure；

Foil unreeling structure；

Bindiny mechanism, the bindiny mechanism are arranged for connecting base material and foil, the bindiny mechanism in the base material unreeling machine The downstream of structure and the foil unreeling structure；

Laser die cutting mechanism, the laser die cutting mechanism are used to form lug, and the laser die cutting mechanism is arranged in the connection The downstream of mechanism；

Driving mechanism, the driving mechanism are used for the base material and foil application driving force after connection, the driving Mechanism is arranged in the downstream of the laser die cutting mechanism.

2. pole piece die-cutting device according to claim 1, which is characterized in that the laser die cutting mechanism is close to the driving Mechanism is arranged.

3. pole piece die-cutting device according to claim 1, which is characterized in that further include pole piece deviation correction mechanism, the pole piece Deviation correction mechanism is arranged between the laser die cutting mechanism and the bindiny mechanism.

4. pole piece die-cutting device according to claim 1, which is characterized in that the bindiny mechanism is rubber-coated mechanism, described Rubber-coated mechanism includes drop sebific duct, and the drop sebific duct has glue dropping hole.

5. pole piece die-cutting device according to claim 4, which is characterized in that further include drying mechanism, the drying mechanism Space is dried with pole piece.

6. pole piece die-cutting device according to claim 1, which is characterized in that further include raw material deviation correction mechanism,

Between the base material unreeling structure and the bindiny mechanism and between the foil unreeling structure and the bindiny mechanism It is both provided with the raw material deviation correction mechanism.

7. pole piece die-cutting device according to claim 1, which is characterized in that further include the first tension control mechanism,

It is set between the base material unreeling structure and the bindiny mechanism or between the foil unreeling structure and the bindiny mechanism It is equipped with first tension control mechanism；

First tension control mechanism includes fixing roller and movable roll, and the movable roll is arranged to the relatively described fixing roller fortune It is dynamic.

8. pole piece die-cutting device according to claim 1, which is characterized in that further include garbage collection mechanism, the waste material Collecting mechanism is correspondingly arranged with the laser die cutting mechanism.

9. pole piece die-cutting device according to claim 1, which is characterized in that further include dedusting mechanism, the dedusting mechanism Including hairbrush, the dedusting mechanism is arranged in the downstream of the laser die cutting mechanism.

10. pole piece die-cutting device according to claim 9, which is characterized in that further include rolling-up mechanism and the second tension control Mechanism processed,

The rolling-up mechanism is arranged in the downstream of the dedusting mechanism, and the rolling-up mechanism is for winding pole piece；

Second tension control mechanism is arranged between the driving mechanism and the rolling-up mechanism.