CN209312901U - Pole piece rolling device - Google Patents

Abstract

The utility model relates to technical field of lithium ion, a kind of pole piece rolling device is provided, including unreeling wheel and winding wheel, and the cutter and rolling device set gradually between unreeling wheel and winding wheel and along pole piece moving direction, pole piece is discharged by the bottom of unreeling wheel, and pole piece is wound by the top of winding wheel, the first, second stationary guide roller is equipped with close to cutter, the first idler roller of tensioning pole piece downwards is equipped between first, second stationary guide roller, the position of the first idler roller is lower than the position of the first stationary guide roller and the second stationary guide roller.In the utility model, first stationary guide roller, the second stationary guide roller and the first idler roller are placed close to cutter, locate the tension of the first idler roller well-balanced adjustment pole piece, reduce pole piece wrinkle situation, and phenomenon and observation pole piece visual condition are dropped off convenient for discovery roll-in in time, it is ensured that postorder rolling effect.

Description

Pole piece rolling device

Technical field

The utility model relates to technical field of lithium ion, especially provide a kind of pole piece rolling device.

Background technique

Lithium ion battery is a kind of secondary cell, has energy density high, long service life, voltage rating is high, self discharge The advantages that rate is low, environmentally protective has a wide range of applications in new-energy automobile, power grid energy storage, digital product.Battery now The market demand is increasing, and competition is more and more fierce, and the requirement to battery manufacturers is higher and higher, the requirement to pole piece quality It is higher and higher.

The quality of pole piece quality directly affects the quality of battery core quality, and pole piece is of poor quality or pole piece existing defects will be to battery core Chemical property and security performance cause extreme influence.And mesh often will appear the case where pole piece wrinkle in pole piece roll-in, And due to the setting of rolling device, wrinkle pole piece cannot be found at the first time, and processing and assembling to postorder makes troubles.

Utility model content

The purpose of this utility model is to provide a kind of pole piece rolling devices, it is intended to solve lithium ion battery in the prior art Easily there is the technical issues of wrinkle in nipping process in pole piece.

A kind of in order to achieve the above purposes, the technical solution adopted by the utility model is: pole piece rolling device, including for putting The unreeling wheel and winding wheel of pole piece are received, and is set between the unreeling wheel and the winding wheel and along the pole piece moving direction The cutter and rolling device set gradually, the pole piece is discharged by the bottom of the unreeling wheel, and the pole piece is by described The top of winding wheel is wound, and is equipped between the unreeling wheel and the cutter and close to the cutter and is used to support institute The first stationary guide roller and the second stationary guide roller of pole piece are stated, first stationary guide roller and second stationary guide roller are along the pole The movement routine of piece is set gradually, and is equipped between first stationary guide roller and second stationary guide roller and is tensioned the pole downwards First idler roller of piece, the position of first idler roller are lower than the position of first stationary guide roller and second stationary guide roller It sets.

Further, the position of first stationary guide roller is higher than the position of second stationary guide roller.

Further, the third for being used to support the pole piece is additionally provided between first stationary guide roller and the unreeling wheel Stationary guide roller, the position of the third stationary guide roller are lower than the position of first stationary guide roller.

Further, it is filled between the cutter and the rolling device and close to the cutter equipped with dust suction It sets, between the dust exhaust apparatus and the rolling device and is equipped with the 4th stationary guide roller and the 5th close to the rolling device and fixes Deflector roll, the 4th stationary guide roller is located at the lower section of the 5th stationary guide roller, and the 4th stationary guide roller is close to the stone roller Pressure device setting, the pole piece re-extend after extending to top by the 4th stationary guide roller bottom to the 5th stationary guide roller Top.

Further, the rolling device includes the upper rolling wheel and lower rolling wheel being oppositely arranged, and the pole piece is by described 5th stationary guide roller top horizontal enters between the upper rolling wheel and the lower rolling wheel.

Further, the second tensioning is additionally provided between the rolling device and the winding wheel and close to the winding wheel Roller, the position of second idler roller are lower than the position of the winding wheel, and the pole piece is supported in the bottom of second idler roller Portion and the top for extending to the winding wheel.

Further, it is additionally provided at least between second idler roller and the rolling device and close to the rolling device Two are used to support the stationary guide roller of the pole piece.

Further, at least two stationary guide rollers include that the 6th fixation set gradually along the pole piece movement routine is led Roller and the 7th stationary guide roller, the position of the 6th stationary guide roller are lower than the position of the rolling device, seven stationary guide roller Position be lower than the position of the 6th stationary guide roller, the pole piece is supported in the bottom of the 6th stationary guide roller and extends to The top of 7th stationary guide roller.

Further, it is additionally provided with the 8th stationary guide roller between the 7th stationary guide roller and second idler roller, it is described 8th stationary guide roller is lower than the 7th stationary guide roller and is higher than second idler roller, and it is solid that the pole piece is supported in the described 8th Determine the bottom of deflector roll and extends to the bottom of second idler roller.

Further, along the pole piece movement routine and be located at the dust exhaust apparatus two sides further respectively have the 9th fixation lead Roller and the tenth stationary guide roller, the pole piece extend to the described tenth through the dust exhaust apparatus by the bottom of the 9th stationary guide roller The top of stationary guide roller.

The utility model has the beneficial effects that

In the utility model, the position of the first idler roller is lower than the position of the first stationary guide roller and the second stationary guide roller.This Sample, pole piece are supported in the top of the first stationary guide roller and press on the bottom of the first idler roller and re-extend to the second stationary guide roller Top, and the first stationary guide roller, the second stationary guide roller and the first idler roller are placed close to cutter, with the equilibrium of the first idler roller The tension of pole piece is adjusted, reduces pole piece wrinkle situation, and drop off phenomenon and observation pole piece visual condition convenient for discovery roll-in in time, Ensure postorder rolling effect.

Detailed description of the invention

It, below will be to embodiment or the prior art in order to illustrate more clearly of the technical scheme in the embodiment of the utility model Attached drawing needed in description is briefly described, it should be apparent that, the accompanying drawings in the following description is only that this is practical new Some embodiments of type for those of ordinary skill in the art without any creative labor, can be with It obtains other drawings based on these drawings.

Fig. 1 is the structural schematic diagram of pole piece rolling device provided by the embodiment of the utility model；

Wherein, each appended drawing reference in figure:

10- unreeling wheel；20- winding wheel；21- winding wheel；22- Scroll；30- cutter；40- rolling device；On 41- Rolling wheel；Rolling wheel under 42-；The first stationary guide roller of 50-；The second stationary guide roller of 51-；52- third stationary guide roller；53- the 4th is solid Determine deflector roll；The 5th stationary guide roller of 54-；The 6th stationary guide roller of 55-；The 7th stationary guide roller of 56-；The 8th stationary guide roller of 57-；58- Nine stationary guide rollers；The tenth stationary guide roller of 59-；The first idler roller of 60-；The second idler roller of 61-；70- dust exhaust apparatus.

Specific embodiment

The embodiments of the present invention are described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning Same or similar element or element with the same or similar functions are indicated to same or similar label eventually.Below by ginseng The embodiment for examining attached drawing description is exemplary, it is intended to for explaining the utility model, and should not be understood as to the utility model Limitation.

In the description of the present invention, it should be understood that term " length ", " width ", "upper", "lower", " preceding ", The orientation or positional relationship of the instructions such as " rear ", "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside" is based on attached Orientation or positional relationship shown in figure, is merely for convenience of describing the present invention and simplifying the description, rather than indication or suggestion Signified device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as to this The limitation of utility model.

In addition, term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or Implicitly include one or more of the features.The meaning of " plurality " is two or two in the description of the present invention, More than, unless otherwise specifically defined.

In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " Gu It is fixed " etc. terms shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；It can be Mechanical connection, is also possible to be electrically connected；It can be directly connected, two can also be can be indirectly connected through an intermediary The interaction relationship of connection or two elements inside element.It for the ordinary skill in the art, can basis Concrete condition understands the concrete meaning of above-mentioned term in the present invention.

Referring to FIG. 1, a kind of pole piece rolling device provided by the embodiment of the utility model, is mainly used for cooperating the painting of pole piece It covers.This pole piece rolling device includes the unreeling wheel 10 and winding wheel 20 for putting receipts pole piece, and is set to unreeling wheel 10 and winding Between wheel 20 and along cutter 30 and rolling device 40 that pole piece moving direction is set gradually, pole piece by unreeling wheel 10 bottom Release, and pole piece is wound by the top of winding wheel 20, is equipped between unreeling wheel 10 and cutter 30 and close to cutter 30 It is used to support the first stationary guide roller 50 and the second stationary guide roller 51 of pole piece, 51 edge of the first stationary guide roller 50 and the second stationary guide roller The movement routine of pole piece is set gradually, and the of tensioning pole piece downwards is equipped between the first stationary guide roller 50 and the second stationary guide roller 51 One idler roller 60, the position of the first idler roller 60 are lower than the position of the first stationary guide roller 50 and the second stationary guide roller 51.

In the present embodiment, the position of the first idler roller 60 is lower than the position of the first stationary guide roller 50 and the second stationary guide roller 51 It sets.It re-extends in this way, pole piece is supported in the top of the first stationary guide roller 50 and presses on the bottom of the first idler roller 60 to second The top of stationary guide roller 51, and the first stationary guide roller 50, the second stationary guide roller 51 and the first idler roller 60 are close to cutter 30 It places, with the tension of 60 well-balanced adjustment pole piece of the first idler roller, reduces pole piece wrinkle situation, and drop off convenient for discovery roll-in in time Phenomenon and observation pole piece visual condition, it is ensured that postorder rolling effect.

It should be noted that pole piece is negative electrode tab in the present embodiment, negative electrode tab is both needed to coat in two sides in coating, wherein Coat distance on one side, another side coating is apart from short, and in the prior art, negative electrode tab coating is apart from longer one in rolling device Face is bottom surface, is easy to appear drops off phenomenon in this way, and use the present embodiment in pole piece rolling device cooperate coating when, pole piece by The bottom of unreeling wheel 10 discharges, and pole piece is wound by the top of winding wheel 20, in this way, the one side of coating distance is above, this Sample prescription just observes pole piece coating situation.

In the present embodiment, the position of the first stationary guide roller 50 is higher than the position of the second stationary guide roller 51, moreover, first is fixed The position for being also positioned above unreeling wheel 10 of deflector roll 50.

Further, the third stationary guide roller for being used to support pole piece is additionally provided between the first stationary guide roller 50 and unreeling wheel 10 52, the position of third stationary guide roller 52 lower than the first stationary guide roller 50 position and be higher than the position of unreeling wheel 10.Pole piece is by putting Rolling wheel 10 discharge when, released by the bottom of unreeling wheel 10, extend upwardly to third stationary guide roller 52 bottom re-extend to The top of first stationary guide roller 50.

Specifically, dust exhaust apparatus 70 is equipped between cutter 30 and rolling device 40 and close to cutter 30.Pole piece After the cutting of cutter 30, edge has dust particles, is adsorbed using 70 dust particles of dust exhaust apparatus, obtains pole piece edge Deep clean.Dust exhaust apparatus 70 is used between dust exhaust apparatus and rolling device 40 and is additionally provided with the 4th close to rolling device 40 consolidate Determine deflector roll 53 and the 5th stationary guide roller 54, wherein the 4th stationary guide roller 53 is located at the lower section of the 5th stationary guide roller 54, and the 4th is solid Determine deflector roll 53 to be arranged close to rolling device 40, pole piece is extended to behind top to re-extend to the 5th by 53 bottom of the 4th stationary guide roller to be consolidated Determine the top of deflector roll 54.4th stationary guide roller 53 is arranged with the 5th stationary guide roller 54 using this mode of interlocking up and down, so that pole Piece takes a step forward tensioning into rolling device 40, it is ensured that the pole piece into rolling device 40 is smooth non-wrinkle.

Further, rolling device 40 includes the upper rolling wheel 41 and lower rolling wheel 42 being oppositely arranged, and pole piece is consolidated by the 5th Determine 54 top horizontal of deflector roll to enter between upper rolling wheel 41 and lower rolling wheel 42.Pole piece water under the premise of above-mentioned balanced tensile force It is flat to enter rolling device 40, movement speed of improving the standard.

In the present embodiment, it is additionally provided with the second idler roller 61 between rolling device 40 and winding wheel 20 and close to winding wheel 20, The position of second idler roller 61 is lower than the position of winding wheel 20, and pole piece is supported in the bottom of the second idler roller 61 and extends to winding The top of wheel 20.Pole piece is wound by the way of upper receipts in winding wheel 20, the second idler roller 61 is arranged before winding, further Tension before improving winding.

Further, at least two are additionally provided between the second idler roller 61 and rolling device 40 and close to rolling device 40 It is used to support the stationary guide roller of pole piece.Pole piece is after rolling device 40 rolls, by the support of at least two stationary guide rollers, also into One step improves pole piece tension, guarantees being normally carried out for postorder winding.

Specifically, at least two stationary guide rollers include the 6th stationary guide roller 55 and the 7th set gradually along pole piece movement routine Stationary guide roller 56, the position of the 6th stationary guide roller 55 are lower than the position of rolling device 40, and the position of the 7th stationary guide roller 56 is lower than The position of 6th stationary guide roller 55, pole piece are supported in the bottom of the 6th stationary guide roller 55 and extend to the top of the 7th stationary guide roller 56 Portion.

The 8th stationary guide roller 57, the 8th stationary guide roller are additionally provided between 7th stationary guide roller 56 and second idler roller 61 57 lower than the 7th stationary guide roller 56 and higher than the second idler roller 61, and pole piece is supported in the bottom of the 8th stationary guide roller 57 and extends to The bottom of second idler roller 61.

In the present embodiment, the 9th stationary guide roller 58 is further respectively had along pole piece movement routine and positioned at 70 two sides of dust exhaust apparatus And the tenth stationary guide roller 59, pole piece extend to the tenth stationary guide roller 59 through dust exhaust apparatus 70 by the bottom of the 9th stationary guide roller 58 Top.By the way that two stationary guide rollers are arranged in 70 two sides of dust exhaust apparatus, pole piece is also set preferably to enter dust exhaust apparatus, and by dust suction Device can smoothly enter into subsequent processing after coming out.

The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this Made any modifications, equivalent replacements, and improvements etc., should be included in the utility model within the spirit and principle of utility model Protection scope within.

Claims (10)

1. a kind of pole piece rolling device, it is characterised in that: including the unreeling wheel and winding wheel for putting receipts pole piece, and be set to institute It states between unreeling wheel and the winding wheel and along cutter and rolling device that the pole piece moving direction is set gradually, it is described Pole piece by the unreeling wheel bottom discharge, and the pole piece by the winding wheel top wind, the unreeling wheel with it is described It is equipped with the first stationary guide roller for being used to support the pole piece between cutter and close to the cutter and the second fixation is led Roller, first stationary guide roller and second stationary guide roller are set gradually along the movement routine of the pole piece, and described first is solid Determine to be equipped with the first idler roller for being tensioned the pole piece downwards between deflector roll and second stationary guide roller, first idler roller Position of the position lower than first stationary guide roller and second stationary guide roller.

2. pole piece rolling device according to claim 1, it is characterised in that: the position of first stationary guide roller is higher than institute State the position of the second stationary guide roller.

3. pole piece rolling device according to claim 1, it is characterised in that: first stationary guide roller and the unreeling wheel Between be additionally provided with the third stationary guide roller for being used to support the pole piece, the position of the third stationary guide roller is solid lower than described first Determine the position of deflector roll.

4. pole piece rolling device according to claim 1, it is characterised in that: the cutter and the rolling device it Between and close to the cutter be equipped with dust exhaust apparatus, rolled between the dust exhaust apparatus and the rolling device and close to described Device is equipped with the 4th stationary guide roller and the 5th stationary guide roller, and the 4th stationary guide roller is located under the 5th stationary guide roller Side, and the 4th stationary guide roller is arranged close to the rolling device, the pole piece is extended by the 4th stationary guide roller bottom It is re-extended after to top to the top of the 5th stationary guide roller.

5. pole piece rolling device according to claim 4, it is characterised in that: the rolling device include be oppositely arranged it is upper Rolling wheel and lower rolling wheel, the pole piece enter the upper rolling wheel and the lower stone roller by the 5th stationary guide roller top horizontal Between pinch roller.

6. pole piece rolling device according to any one of claim 1 to 5, it is characterised in that: the rolling device and institute It states between winding wheel and is additionally provided with the second idler roller close to the winding wheel, the position of second idler roller is lower than the winding The position of wheel, the pole piece are supported in the bottom of second idler roller and extend to the top of the winding wheel.

7. pole piece rolling device according to claim 6, it is characterised in that: second idler roller and the rolling device Between and be additionally provided at least two stationary guide rollers for being used to support the pole piece close to the rolling device.

8. pole piece rolling device according to claim 7, it is characterised in that: at least two stationary guide rollers include along described The position of the 6th stationary guide roller and the 7th stationary guide roller that pole piece movement routine is set gradually, the 6th stationary guide roller is lower than institute The position of rolling device is stated, the position of seven stationary guide roller is lower than the position of the 6th stationary guide roller, the pole piece support In the 6th stationary guide roller bottom and extend to the top of the 7th stationary guide roller.

9. pole piece rolling device according to claim 8, it is characterised in that: the 7th stationary guide roller and described second The 8th stationary guide roller is additionally provided between tight roller, the 8th stationary guide roller is lower than the 7th stationary guide roller and is higher than described second Idler roller, the pole piece are supported in the bottom of the 8th stationary guide roller and extend to the bottom of second idler roller.

10. pole piece rolling device according to claim 4, it is characterised in that: along the pole piece movement routine and be located at institute It states dust exhaust apparatus two sides and further respectively has the 9th stationary guide roller and the tenth stationary guide roller, the pole piece is by the 9th stationary guide roller Bottom the top of the tenth stationary guide roller is extended to through the dust exhaust apparatus.