CN2924797Y

CN2924797Y - Lithium ion cell coating spreading machine winding device

Info

Publication number: CN2924797Y
Application number: CNU2006200170037U
Authority: CN
Inventors: 李亚宾; 许教练
Original assignee: BYD Co Ltd
Current assignee: BYD Co Ltd
Priority date: 2006-07-13
Filing date: 2006-07-13
Publication date: 2007-07-18
Anticipated expiration: 2016-07-13

Abstract

The utility model provides a winding device of lithium-ion battery slurry machine, which includes winding wheels to wind the polar plates, the number of the winding wheels is at least two, each winding wheel winds the polar plates alternatively, the slurry machine can not be stop when stripping, thus to avoid the generated large quantities of waste caused by the stop of the machine for stripping and improve the production efficiency at the same time. The action of the traction of a free end which clips the polar plate to all the winding wheels can be automatically completed by setting up a traction mechanism. The utility model may also be provided with two or more guide rollers to clip the guide polar plate, thus to make the transmission of the polar plates more stable and reliable.

Description

A kind of wrap-up of lithium ion battery tensile pulp machine

[technical field]

The utility model relates to a kind of wrap-up of lithium ion battery tensile pulp machine, especially a kind of can be because of unloading the wrap-up that volume must tensile pulp machine be shut down.

[background technology]

In lithium ion battery was produced, the pole piece slurry was one very important operation, and it is directly connected to the product quality and the production efficiency of battery.Present employed tensile pulp machine all is step, and the wrap-up of tensile pulp machine will be finished the pole piece 5 of slurry and receive the coiled volume as shown in Figure 1 by rolling wheel 1.Because existing tensile pulp machine only is provided with a rolling wheel 1; when after rolling wheel 1 is finished the rolling of a unit pole piece volume, unloading volume; tensile pulp machine is shut down, and after the pole piece volume of waiting to finish rolling unloaded from rolling wheel 1, the rolling of next unit pole piece volume was carried out in start again.The volume mode is unloaded in this step shutdown can make the pasting process interrupt, and causes a large amount of pasting waste products, has increased manufacturing cost; Volume is unloaded in each simultaneously shutdown will be wasted about 5 minutes clock times, greatly reduces production efficiency.

[utility model content]

Technical problem to be solved in the utility model provide a kind of can be because of unloading the wrap-up that volume must tensile pulp machine be shut down.

For solving the problems of the technologies described above, the utility model provides a kind of wrap-up of lithium ion battery tensile pulp machine, comprises the rolling wheel of rolling pole piece, and the number of rolling wheel is at least two.The utility model is on the basis of the prior art wrap-up of the rolling wheel with a rolling pole piece, sets up the rolling wheel of one or more rolling pole pieces.During work, the pole piece elder generation rolling of having finished slurry is to first rolling wheel, cut off pole piece finish the rolling of a unit pole piece volume when first rolling wheel after, the free end of the follow-up pole piece of finishing slurry drawn to second rolling wheel again continue rolling, then the unit pole piece volume of having finished rolling on first rolling wheel is unloaded from first rolling wheel; Treat to cut off pole piece once more after second rolling wheel finished the rolling of a unit pole piece volume, the free end traction of the follow-up pole piece of finishing slurry is continued rolling to first rolling wheel or other rolling wheel ...Each rolling wheel takes turns the rolling pole piece, and tensile pulp machine need not be shut down when unloading volume.

In first rolling work period, and in the follow-up rolling work period after a rolling wheel is finished rolling, pole piece and is cut off, need be to the rolling wheel that is about to the rolling pole piece with the free end traction of pole piece.This action can manually be finished, and also can be finished automatically by equipment.But preferred wrap-up comprises the free end of clamping pole piece and with the haulage gear (as mechanical finger) of this free end traction to each rolling wheel, can improve the automaticity and the production efficiency of wrapup procedure like this.

In order to tighten pole piece, the guide wheel that pole piece is tightened in guiding can be set in the place ahead of rolling wheel to guarantee the rolling quality.Here the place ahead of said rolling wheel is the traffic direction of pole piece during according to work, pole piece elder generation pile warp guide wheel, and rolling is to rolling wheel again.Guide wheel can rotate along self rotating shaft.

Two or more guide wheels can be set, and at least two guide wheels in the guide wheel reliably lump together with the clamping pole piece.Like this, after rolling, pole piece that a rolling wheel is finished a unit pole piece volume are cut off, when the free end of the follow-up pole piece of finishing slurry is towed on another rolling wheel, the guide wheel that reliably lumps together carries out clamping by mutual closing to follow-up pole piece, prevent the pole piece sideslip, make that the conveying of pole piece is more reliable and more stable.

Increase to two or more by the number with the wrap-up rolling wheel, each rolling wheel takes turns the rolling pole piece, and tensile pulp machine need not be shut down when unloading volume, has avoided producing the situation of a large amount of waste products because of unloading the volume shutdown, has improved production efficiency and economic benefit.The guide wheel of two or more clamping guiding pole pieces also can be set, make that the conveying of pole piece is more reliable and more stable.

[description of drawings]

For convenience of explanation, the utility model uses following embodiment and accompanying drawing to do to describe in detail.

Fig. 1 is the structural representation sketch of a kind of lithium ion battery tensile pulp machine wrap-up in the prior art.

Fig. 2 is the structural representation sketch of a kind of execution mode of the utility model lithium ion battery tensile pulp machine wrap-up.Among the figure, pole piece 5 just in rolling to first rolling wheel 1, guiding guide wheel 3 and clamping guide wheel 4 is separately.

Fig. 3 is that wrap-up shown in Figure 2 is in first rolling wheel 1 and finishes the rolling of a unit pole piece volume, pole piece 5 be cut off, guide guide wheel 3 and the clamping guide wheel 4 structural representation sketch when drawing close the location status that clamps pole piece 5 mutually between first rolling wheel 1 and guiding guide wheel 3.

Fig. 4 be the free end of pole piece 5 among Fig. 3 by rolling the structural representation sketch of wrap-up to second rolling wheel 2 time.

Fig. 5 is the structural representation sketch that the clamping guide wheel 4 among Fig. 4 is thrown off guiding guide wheels 3, pole piece 5 rollings wrap-up to second rolling wheel 2 time.

[embodiment]

Fig. 2-Fig. 5 shows a kind of execution mode of the present utility model.This wrap-up comprises control unit, cutting blade, haulage gear, first rolling wheel 1, second rolling wheel 2, guiding guide wheel 3 and clamping guide wheel 4.Control unit, cutting blade and haulage gear are not shown in each accompanying drawing, the fixed-site of first rolling wheel 1, second rolling wheel 2 and guiding guide wheel 3, the position of clamping guide wheel 4 is adjustable, and clamping guide wheel 4 is in respectively as Fig. 2 and mask work position shown in Figure 5, clamping service position as shown in Figure 3 and Figure 4 as required.For ease of illustrative, show pole piece 5 in the accompanying drawing in the lump, in each accompanying drawing, represent the right-hand member of the lines of pole piece 5 to be blocked, in fact pole piece 5 is to be admitted to wrap-up from the paper right direction continuously.

During work, first rolling wheel 1 and second rolling wheel 2 can be respectively rotate with rolling pole piece 5 around self rotating shaft, guiding guide wheel 3 and clamping guide wheel 4 also can be respectively around self rotating shaft rotation so that the smooth and easy conveying of pole piece 5.

The course of work of this wrap-up is as follows:

At first, 3 rollings of pole piece 5 pile warps guiding guide wheel are to first rolling wheel 1, and clamping this moment guide wheel 4 is in the mask work position, as shown in Figure 2;

Finish the rolling of first unit pole piece volume when first rolling wheel 1, control unit control cutting blade cuts off pole piece 5, and control unit control clamping guide wheel 4 guide guide wheels 3 are drawn close, and clamping this moment guide wheel 4 is in the clamping service position, pole piece 5 is guided

guide wheel

3 and 4 clampings of clamping guide wheel, as shown in Figure 3;

Then, control unit control haulage gear draws the free end (being the left end of pole piece 5 among Fig. 3) of pole piece 5 to second rolling wheel 2, the rolling of second unit of second rolling wheel, 2 beginnings pole piece volume, first unit pole piece volume of having finished rolling is unloaded from first rolling wheel 1, as shown in Figure 4;

Then, control unit control clamping guide wheel 4 leaves guiding guide wheel 3, and clamping this moment guide wheel 4 is in the mask work position, as shown in Figure 5;

Second rolling wheel 2 repeats above-mentioned course of action after finishing the rolling of second unit pole piece volume, goes round and begins again.

In the course of work of this wrap-up, tensile pulp machine need not be shut down, and has avoided shutting down the situation that produces a large amount of waste products because of unloading volume, has also improved production efficiency simultaneously.

Cutting blade cuts off pole piece 5 in the above-mentioned course of work, haulage gear also can manually be finished free end traction to the action on another rolling wheel of pole piece 5.

Adopt two rolling wheel tensile pulp machines (calling two rolling wheel machines in the following text) of this wrap-up and adopt the condition of production of the existing monovolume wheel tensile pulp machine (calling the monovolume turbine in the following text) of wrap-up shown in Figure 1 to be compared as follows:

1. the comparison of bad learies

The monovolume turbine is shut down 20 times every day, and shut down learies is 5 sheets at every turn, is about 9 negative poles, 12 positive poles, and the pole piece cost is about: 0.5 yuan/sheet of negative pole, anodal 1.0 yuan/sheet.Two kinds of bad scrappage comparative results of tensile pulp machine are shown in table 1.

The comparison of the bad learies of table 1

Project	The monovolume turbine			Two rolling wheel machines
	The monovolume turbine			Two rolling wheel machines	The each shutdown of unit scrapped pole piece quantity (pcs/ platform)	Unit is scrapped pole piece quantity (pcs/ balcony) every day	20 machines are scrapped quantity (pcs/ days) every day	Unit is shut down learies at every turn
	Negative pole	45	900	18000			20 machines are scrapped quantity (pcs/ days) every day	Unit is shut down learies at every turn	0
Anodal	Negative pole	45	900	18000	60	1200	24000	0	0
Anodal	Add up to	105	2100	42000	60	1200	24000	0	0

As can be seen from Table 1, two rolling wheel machines have avoided pole piece to scrap fully, according to normal output, can reduce the production cost of 42000pcs positive/negative plate every day, and 1 year can reduce the production cost more than 6,000,000 yuan, can improve the performance of enterprises greatly.

2. the comparison of production efficiency

The monovolume turbine is shut down 20 times every day, and each the shutdown needs about 5 minutes, and every machine have a daily output of anodal 40000,30000 at negative pole.Two kinds of tensile pulp machine production efficiencys are relatively as table 2.

The comparison of table 2 production efficiency

Device	Unit day effective production time (hr)	The daily output (pcs)		Output amounts to (pcs)
		The daily output (pcs)			Anodal	Negative pole
		The monovolume turbine	24		Anodal	Negative pole	40000	30000	70000
Two rolling wheel machines	24	The monovolume turbine	24	42985	32238	75223	40000	30000	70000

As can be seen from Table 2, use two rolling wheel machines, can improve the above output of 5000pcs every day, improved production efficiency greatly.

Claims

1, a kind of wrap-up of lithium ion battery tensile pulp machine comprises the rolling wheel of a rolling pole piece, and it is characterized in that: this wrap-up is provided with the rolling wheel of one or more rolling pole pieces in addition.

2, the wrap-up of lithium ion battery tensile pulp machine according to claim 1 is characterized in that: but comprise the free end of clamping pole piece and this free end is drawn the draw-gear of the described rolling wheel of rolling pole piece extremely soon.

3, the wrap-up of lithium ion battery tensile pulp machine according to claim 1 and 2 is characterized in that: comprise the guide wheel that is positioned at described rolling wheel the place ahead.

4, the wrap-up of lithium ion battery tensile pulp machine according to claim 3 is characterized in that: the number of described guide wheel is at least two; At least two guide wheels reliably lump together with the clamping pole piece in the described guide wheel.