CN201327853Y - Coiling device - Google Patents

Abstract

A coiling device is used to entwine pole pieces and insulating films on a mandrill layer by layer, and comprises a base, a drive unit arranged on the base and a coiling device, wherein the coiling device has a first coiling group and a second coiling group, each of the coiling groups respectively comprises a first coiling needle and a second coiling needle which are driven by the drive unit, the first coiling needle and the second coiling needle can be driven to protrude towards each other for holding the mandrill or to separate from each other for releasing the mandrill, and are further driven by the drive unit to rotate relative to the base taking a pivoting point as the center, thereby releasing the coiling operation to the mandrill by using the pole pieces and the insulating films. The utility model enables the pole pieces and the insulating films to evenly coat the mandrill through that the first coiling needle and the second coiling needle are synchronously driven to coil for evenly driving the mandrill to rotate, thereby providing lithium batteries with stable quality.

Description

Coiler device

Technical field

The utility model is relevant for a kind of coiler device, particularly relevant for a kind of coiler device that is used to make lithium battery.

Background technology

Lithium battery is a kind of product that is widely used in recent years and is researched and developed in a large number, can find in a lot of fields using lithium battery.Be illustrated in figure 1 as a kind of existing coiler device 7 that is used for the coiling step of lithium battery manufacturing process, this coiler device 7 has the rotating disk 72 that a pedestal 71, is located at these pedestal 71 1 sides, and a pair of winder unit 73,73 ', this two winder unit 73,73 ' is to be set on this rotating disk 72 with parallel arrangement mode.Respectively this winder unit 73,73 ' have a Move Volumes pin 731,731 ' and in a straight line with this Move Volumes pin 731,731 ' fixedly volume pin 732,732 ' respect to one another, this Move Volumes pin 731, an end of 731 ' are hubbed at this rotating disk 72, and can be subjected to that a servo motor 74 drives and towards fixing volume pin 732,732 ' or move away from fixing volume pin 732,732 '.Should be fixing volume pin 732,732 ' be to be fixed on the support 733 away from this Move Volumes pin 731, an end of 731 '.

Consult Fig. 1 and Fig. 2 simultaneously, before carrying out winding work, wherein the Move Volumes pin 731 of a winder unit 73 is to roll up pin 732 so that volume pin 731 away from fixing relatively, the roughly corresponding space of plug 24 length that formation one and institute's desire adopt between 732, at this moment, one feeding jig arm (figure does not show) can be with a plug 24 grippings to these winder unit 73 places, then this cylinder 75 starts, make this Move Volumes pin 731 stretch out and pass this plug 24 toward directions of fixing volume pins 732, contact up to a end, make this plug 24 be subjected to Move Volumes pin 731 and support with this fixing volume pin 732.

Then, this servo motor 74 drives this Move Volumes pin 731 and carries out self rotation, plug 24 also rotates under the drive of Move Volumes pin 731 synchronously, and the pole piece that will send into by these coiler device 7 one sides (figure does not show) and dielectric film (figure does not show) being wound in layer by layer on this plug 24 in the lump, to be spooled to predetermined thickness, this Move Volumes pin 731 just stops operating.

After Move Volumes pin 731 stops operating, this rotating disk meeting Rotate 180 degree, two winder units 73,73 ' position will be exchanged each other, then the plug 24 on the winder unit 73 of winding work has been finished in a discharging jig arm (figure does not show) gripping, confirm that this discharging jig arm is gripping after this plug 24, this Move Volumes pin 731 is activated and moves up to this plug 24 of holding no longer toward the direction away from fixing volume pin 732.Afterwards, this discharging jig arm can will be finished plug 24 grippings of pole piece coiling and put to the appropriate location, and simultaneously, another winder unit 73 ' is carrying out the impulse stroke that plug is reeled.

In this kind coiler device 7; since the volume pin 731,731 ', 732,732 ' in each winder unit 73,73 ' be divided into Move Volumes pin 731,731 ' with the fixing pin 732,732 ' of rolling up; and when actual coiling stroke, only there is Move Volumes pin 731,731 ' to rotate; and fixing volume pin 732,732 ' and have neither part nor lot in pole piece coiling; therefore regular meeting causes the uneven situation of plug 24 rotations; further cause the coiling quality of pole piece to descend, influenced the quality of lithium battery.

The utility model content

The utility model purpose is: the coiler device that a kind of can quality bills of materials preferable lithium battery is provided.

The utility model provides a kind of coiler device, and be to be used for a plug is twined layer by layer with pole piece and dielectric film, and include the driver element that a pedestal, is installed in this pedestal, and a winder unit.Wherein, this pedestal has a pedestal and and is extended outward and the supporting walls relative at interval with this pedestal by this pedestal.This winder unit is hubbed between this pedestal and the supporting walls, and have a first volume winding and one second a coiling group, respectively should the coiling group comprise the first volume pin and the one second volume pin that are subjected to this driver element simultaneously and are driven respectively, this first volume pin and the second volume pin can be activated and stretch out toward each other with the clamping plug or away from each other to discharge plug, respectively should the coiling group can be subjected to further that this driver element drives and are that rotate relative to this pedestal at the center with the pivoting point.

Preferably, this pedestal has more a support, this first volume pin is arranged at this support away from an end of the second volume pin the most, and this driver element has a servo motor and and is articulated in the branch air parcel of this supporting walls for this support, this minute air parcel be subjected to this servo motor and drive and drive support together with should the coiling group being that rotate at the center with the pivoting point respectively between pedestal and supporting walls.

Preferably, this pedestal has more a rotating disk, and this second volume pin is arranged at this rotating disk away from an end of this first volume pin the most, and this rotating disk is along with the coiling group is rotated and corresponding rotation.

In sum, the beneficial effects of the utility model are: coiler device utilizes the volume pin of winder unit to stretch out relatively synchronously or the stroke of withdrawing, no longer be to rely on the formation of reeling of monolateral volume pin, provide the coiling action of balance to drive the plug rotation, and by dividing the design of air parcel, can allow the mechanism design of this winder unit more simplify, and improve the servo motor adapter and divide the knotting of being derived because of rotation between air parcel puzzlement, make that the design of whole coiler device is more active and polynary.

Description of drawings

Fig. 1 is an a kind of stereogram of existing coiler device;

Fig. 2 is another stereogram of this existing coiler device, illustrates that two winder units are activated and carry out 180 degree rotations;

Fig. 3 is a stereogram of a preferred embodiment of the utility model coiler device;

Fig. 4 one is similar to the stereogram of Fig. 3, but a roof and a supporting walls are removed;

Fig. 5 is an end view of this preferred embodiment, shows the situation that this preferred embodiment collocation feeding jig arm, adhesive tape feeding mechanism, pole piece feeding mechanism and cutting mechanism use;

Fig. 6 is an action schematic diagram of this preferred embodiment, illustrates that first volume winding carries out the situation that plug is reeled; And

Fig. 7 is another action schematic diagram of this preferred embodiment, illustrates that the first volume winding and the second coiling group are rotated and the situation of degree of switching position each other.

The main element symbol description:

1 coiler device, 11 pedestals, 111 pedestals

112 roofs, 113 supporting walls, 114 supports

115 rotating disks, 12 driver elements, 121 servo motors

122 fens air parcel 13 winder units 131 first volume windings

131 ' the second coiling group, 132/132 ' first volume pin

133/133 ' the second volume pin, 21 anode pole pieces, 22/22 ' dielectric film

23 cathode pole pieces, 24 plugs, 3 feeding jig arm

5 pole piece feeding mechanisms, 51 pressing plates, 6 cutting mechanisms

Embodiment

Consult Fig. 3 to Fig. 6, one preferred embodiment of the utility model coiler device 1 is in order to making a lithium battery being provided as the following process moulding, and this lithium battery is by with anode pole piece 21, a dielectric film 22, cathode pole piece 23 and 22 ' stacked being wound on the plug 24 of another dielectric film.This coiler device 1 is further arranged in pairs or groups a feeding jig arm 3, an adhesive tape feeding mechanism, a pole piece feeding mechanism 5 and a cutting machine structure 6 and is used (feeding jig arm 3, adhesive tape feeding mechanism, pole piece feeding mechanism 5 and cutting mechanism 6 all are shown among Fig. 5).Wherein, this pole piece feeding mechanism 5 has two pressing plates 51 that are oppositely arranged up and down to transport positive and negative plate respectively.

To shown in Figure 4, a preferred embodiment of the utility model coiler device 1 includes: a pedestal 11, a driver element 12, and a winder unit 13 as Fig. 3.

This pedestal 11 have roof that a pedestal 111, extends toward horizontal direction by these pedestal 111 tops 112, one by this pedestal 111 extends outward and with this relative supporting walls 113, a support 114 and rotating disk 115 in pedestal 111 intervals.

This driver element 12 has a servo motor 121 and and supplies this support 114 to be articulated in the branch air parcel 122 of this supporting walls 113.

This winder unit 13 has a first volume winding 131 and one second coiling group 131 ', respectively should coiling group 131,131 ' comprises a first volume pin 132 respectively, 132 ' and 1 second volume pin 133,133 ', this first volume pin 132,132 ' is activated that unit 12 drives via the branch gas effect of minute air parcel 122 and toward the second volume pin 133,133 ' direction is stretched out with clamping plug 24 or is withdrawn to discharge plug 24, and support 114 is for this first volume pin 132,132 ' the most away from this second volume pin 133, an end setting of 133 ', and this second volume pin 133,133 ' is to be activated that unit 12 drives and toward first volume pin 132,132 ' direction is stretched out with clamping plug 24 or is withdrawn to discharge plug 24, this second volume pin 133,133 ' the most away from first volume pin 132, an end of 132 ' is to be arranged on this rotating disk 115.

As Fig. 5 and shown in Figure 6 and look back Fig. 4 simultaneously, when all mechanisms be subjected to that a control unit (figure do not show) control and quilt startup simultaneously after, this feeding jig arm 3 meeting grippings one plug 24 is to two volume pins 132 of this first volume winding 131, between 133, at this moment, because two volume pins 132 of this first volume winding 131, the 133rd, be in a retracted mode, two volume pins 132, form a space that just can supply this plug 24 to be installed with between 133, treat that plug 24 is pinched to two volume pins 132 by feeding jig arm 3, after between 133, the first volume pin 132 of this control unit control first volume winding 131 stretches out and touches an end of plug 24 toward the direction of the second volume pins 133, controlling the second volume pin 133 simultaneously stretches out and touches the other end of plug 24 toward the direction of first volume pins 132, whereby, make that this plug 24 can be located.After treating that plug 24 is confirmed to be located, this feeding jig arm 3 is promptly unclamped plug 24 and is moved to one and carries out next time gripping operation away from the position of this coiler device 1 with preparation relatively.

After treating that this plug 24 is located, this adhesive tape feeding mechanism (figure does not show) is pasted to an end of the adhesive tape of one section predetermined length this plug 24 and finishes the dielectric film roll set, then, this pole piece feeding mechanism 5 is delivered to these plug 24 places with both positive and negative polarity pole piece 21,23 together with dielectric film 22,22 ' and is attached, and prepares to carry out winding work.

Then, two volume pins 132,133 of this first volume winding 131 are driven and are rotated synchronously, make that both positive and negative polarity pole piece 21,23 is to reel in the center together with dielectric film 22,22 ' with plug 24, at this moment, whether this control unit more can correct by a photoelectric inspection device (figure does not show) length of confirming to reel.In addition, it is smooth state when being involved in plug 24 to guarantee pole piece that the front end of both positive and negative polarity pole piece 21,23 is provided with an air blowing part (figure does not show), and keeps static to blow in the front end that this dielectric film 22,22 ' is sent.

To be spooled after setting thickness, the rotation of two volume pins 132,133 of this first volume winding 131 will be slowed down gradually, and last, two pressing plates 51 of this pole piece feeding mechanism 5 can be pushed down pole piece 21,23, and the scissors of this pole piece feeding mechanism 5 cuts.After a while, be used for this dielectric film 22,22 ' cutting mechanism 6 also will cut, should be noted that: dielectric film 22,22 ' the coiling number of turns must be greater than the coiling number of turns of both positive and negative polarity pole piece 21,23, and the lithium battery outer peripheral face of guaranteeing to finish coiling whereby is to present state of insulation.

Consult Fig. 6 to Fig. 7, afterwards, this minute air parcel 122 be subjected to this servo motor 121 (figure does not show) institute drives and drives support 114 together with respectively should the coiling group 131,131 ' between pedestal 111 (figure does not show) and supporting walls 113, be that extremely positions shown in Figure 7 are spent in center rotation 180 with the pivoting point, thus, this first volume winding 131 is converted to the position of original second coiling group 131 ', and this second coiling group 131 ' is converted to the position of original first volume winding 131.This adhesive tape feeding mechanism moves once more and travels near these first volume winding 131 places, after treating that a end with adhesive tape sticks, two volume pins 132,133 of this first volume winding 131 begin to reel and last one period scheduled time again, guarantee that this adhesive tape can coat pole piece fully, make pole piece 21,23 be unlikely to expose, will finish between two volume pins 132,133 of product by first volume winding 131 by a discharging jig arm at last and take out.At this moment, the winding work above this second coiling group 131 ' repeats.When this second coiling group 131 ' is finished coiling, and these first volume winding 131 formed plugs 24 are coated with after pole piece 21,23 and dielectric film 22,22 ' pressed from both sides out by the discharging jig arm, air parcel 122 was subjected to this servo motor 121 and drove and drive support 114 once more together with respectively should coiling group 131,131 ' relatively rotating 180 degree between pedestal 111 and supporting walls 113 this minute, this second coiling group 131 ' is converted to the position of first volume winding 131, and this first volume winding 131 is converted to the position of the second coiling group 131 ' constantly to repeat operation.

The utility model by respectively should the coiling group 131,131 ' the first volume pin 132 and the second volume pin 133 can stretch out simultaneously and the withdrawal stroke, make the servo motor 121 at score air parcel 122 rears take over the situation that is difficult for taking place knotting, air parcel 122 can carry out operation and can not be restricted in any angle this minute, more can significantly dwindle the fixed form of winder unit 13, overall structure is more simplified, and winding work is diversification more.In addition, owing to first volume pin 132,132 ' and the second volume pin 133,133 ' all can be subjected to driven in synchronism and reel, therefore drive plug 24 rotations that can balance make pole piece 21,23 and dielectric film 22,22 ' be able to average plug 24 peripheries that are coated on.

Conclude above-mentioned, coiler device 1 of the present utility model utilizes the volume pin 132 of winder unit 13,132 ', 133,133 ' can stretch out or the characteristics of the stroke of withdrawing synchronously relatively, no longer be to rely on the formation of reeling of monolateral volume pin, provide the coiling action of balance to drive the plug rotation, and by dividing the design of air parcel 122, can allow the mechanism design of this winder unit 13 more simplify, and improve servo motor 121 adapters and divide the knotting of being derived because of rotation between the air parcel 122 puzzlement, make that the design of whole coiler device 1 is more active and polynary, therefore can reach the purpose of this utility model really.

Only the above person only is preferred embodiment of the present utility model, and when not limiting practical range of the present utility model with this, the various equivalences of doing according to teachings herein change and modify such as, all should belong to the scope that the utility model includes.

Claims (3)

1, a kind of in order to a plug is reeled layer by layer with the coiler device of pole piece and dielectric film, it is characterized in that including:

A pedestal has a pedestal, and one is extended outward by this pedestal and the supporting walls relative at interval with this pedestal;

A driver element that is installed in this pedestal; And

A winder unit that is hubbed between this pedestal and the supporting walls, this winder unit has a first volume winding and one second coiling group, respectively should the coiling group comprise a first volume pin and one second volume pin of being subjected to this driver element simultaneously and being driven respectively, this first volume pin and the second volume pin are activated and stretch out toward each other with the clamping plug or away from each other to discharge plug, respectively should the coiling group be subjected to this drive unit drives, be that rotate relative to this pedestal at the center with the pivoting point.

2, coiler device as claimed in claim 1, it is characterized in that, this pedestal has a support, this first volume pin is arranged at this support away from an end of the second volume pin, and this driver element has the branch air parcel that a servo motor and this support of confession are articulated in this supporting walls, this servo motor driven this minute air parcel drives this support together with should the coiling group being that rotate at the center with the pivoting point respectively between pedestal and supporting walls.

3, coiler device as claimed in claim 2 is characterized in that, this pedestal has a rotating disk, and this second volume pin is arranged at this rotating disk away from an end of this first volume pin, and this rotating disk is along with the coiling group is rotated and corresponding rotation.

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