CN208970609U

CN208970609U - A kind of manufacturing equipment of lithium battery diaphragm

Info

Publication number: CN208970609U
Application number: CN201821929480.XU
Authority: CN
Inventors: 赵志超; 崔虎
Original assignee: SUZHOU GREENPOWER NEW ENERGY MATERIALS CO Ltd
Current assignee: SUZHOU GREENPOWER NEW ENERGY MATERIALS CO Ltd
Priority date: 2018-11-22
Filing date: 2018-11-22
Publication date: 2019-06-11
Anticipated expiration: 2028-11-22

Abstract

The utility model discloses a kind of manufacturing equipments of lithium battery diaphragm, and which raises production efficiencys, reduce costs.A kind of manufacturing equipment of lithium battery diaphragm, including secondary traction device, the secondary traction device include one or more heating rollers, are equipped with the fluid channel to circulate for heat medium in the heating roller.It further include the pressing roll mechanism for compressing diaphragm, the pressing roll mechanism includes at least two edge rollers, and two edge rollers distinguish tapered or frustroconical, and lesser one end of outer diameter of two edge rollers is oppositely arranged.

Description

A kind of manufacturing equipment of lithium battery diaphragm

Technical field

The utility model belongs to lithium battery diaphragm manufacturing field, and in particular to a kind of manufacturing equipment of lithium battery diaphragm, especially It is a kind of secondary traction device of second traction destressing.

Background technique

In diaphragm production, since diaphragm is there are stress, the diaphragm after winding needs to carry out high temperature failure, it is therefore an objective to anti- Only diaphragm occurs embracing muscle and deformation and other issues.The high temperature failure time is usually 24 hours, and it is big to need to be equipped with area Many manpower and material resources are all expended in transport and storage in high temperature failure workshop, influence production efficiency and energy consumption is big.

Utility model content

In view of the above problems, the object of the present invention is to provide a kind of manufacturing equipment of lithium battery diaphragm, which raises Production efficiency reduces costs.

In order to achieve the above objectives, the technical solution adopted in the utility model are as follows:

A kind of manufacturing equipment of lithium battery diaphragm, including secondary traction device, the secondary traction device include one or more A heating roller is equipped with the fluid channel to circulate for heat medium in the heating roller.

Further, the secondary traction device further includes the pressing roll mechanism for compressing diaphragm, the pressing roll mechanism Including at least two edge rollers, two edge rollers distinguish tapered or frustroconicals, and two edge rollers is outer The lesser one end of diameter is oppositely arranged.

Further, the pressing roll mechanism further includes for driving the mobile cylinder to compress diaphragm of the edge roller.

Further, the edge roller is installed on mounting plate, and the mounting plate is rotatably connected at bracket, described The piston rod of cylinder is rotatably connected at the mounting plate to drive the mounting plate to drive the edge roller mobile.

Further, each edge roller is set in pressure roller shaft, and the both ends of the pressure roller shaft are respectively and described in one Mounting plate connection.

Further, the secondary traction device further includes chill roll, and the quantity of the pressing roll mechanism is multiple, each institute It states heating roller and the chill roll respectively corresponds the pressing roll mechanism.

Further, conduction oil is connected in the fluid channel.

It further, further include succeeding stretch device and winding device, the secondary traction device is set to described secondary Between stretching device and the wrap-up.

Further, further include one-off drawing device before the succeeding stretch device and be set to described primary Extraction equipment between stretching device and the succeeding stretch device.

The utility model by adopting the above technical scheme, has the advantages that compared with prior art

Diaphragm is heated by second traction using heating roller, heating surface (area) (HS is big, and heating time is long, heating roller with every Film contact area is big, is heated evenly, and it is good to eliminate internal stress effect；High temperature failure link can be cancelled, increase production efficiency, reduced Energy consumption.

Detailed description of the invention

It, below will be to required in embodiment description in order to illustrate more clearly of the technical scheme in the embodiment of the utility model Attached drawing to be used is briefly described, it should be apparent that, the accompanying drawings in the following description is only some realities of the utility model Example is applied, it for those of ordinary skill in the art, without creative efforts, can also be according to these attached drawings Obtain other attached drawings, in which:

Fig. 1 is the schematic diagram according to a kind of lithium battery diaphragm Preparation equipment of the utility model；

Fig. 2 is the flow chart using manufacturing equipment shown in FIG. 1 manufacture lithium battery diaphragm；

Fig. 3 is the structural schematic diagram of the secondary traction device in Fig. 1；

Fig. 4 is the front schematic view of the heating roller and pressing roll mechanism in Fig. 1；

Fig. 5 a, 5b are respectively the cross-sectional view of two edge rollers in Fig. 4；

Fig. 6 is the side schematic view of the heating roller and pressing roll mechanism in Fig. 1.

Wherein, 1, one-off drawing device；2, extraction equipment；3, succeeding stretch device；4, secondary traction device；5, winding dress It sets；6, diaphragm；

41, heating roller；42, chill roll；43, pressing roll mechanism；431a, edge roller；431b, edge roller；432, cylinder；433, Pressure roller shaft；434, mounting plate；435, bracket.

Specific embodiment

The preferred embodiment of the utility model is described in detail with reference to the accompanying drawing, so that the advantages of the utility model It can be easier to be understood by the person skilled in the art with feature.

The present embodiment provides a kind of manufacturing equipments of lithium battery diaphragm, shown referring to Fig.1, which includes successively setting One-off drawing device 1, extraction equipment 2, succeeding stretch device 3, secondary traction device 4 and the wrap-up 5 set.Using being set to Secondary traction device 4 between succeeding stretch device 3 and wrap-up 5 carries out above-mentioned second traction step.Referring to Fig. 2 institute Show, the technique using manufacturing equipment manufacture lithium battery diaphragm includes the following step that sequence carries out: one-off drawing step, extraction Take step, succeeding stretch step, the second traction step, the winding step；Diaphragm is indulged in one-off drawing step To stretching, cross directional stretch is carried out to diaphragm in succeeding stretch step, wherein carrying out to diaphragm before second traction step Traction, therefore the distraction step after succeeding stretch is defined as succeeding stretch step to distinguish.Diaphragm is removed through second traction After interior gravitation, pass through winding step winding.After winding, it can handle, can reach without high temperature failure in the prior art To the effect for preventing diaphragm from armful muscle and deformation occur；Even if carrying out high temperature failure processing after winding, shorter height is also only needed Warm out-of-service time (being less than 24 hours in the prior art).

Fig. 3 shows a kind of secondary traction device 4 of the present embodiment use.Referring to shown in Fig. 3, secondary traction device 4 is wrapped Include one or more heating rollers 41, chill roll 42 and pressing roll mechanism 43.The fluid to circulate for heat medium is equipped in heating roller 41 Diaphragm 6 is heated by the heat that heat medium carries in channel, and heat medium is preferably conduction oil.Specific to this implementation In example, the quantity of heating roller 41 is five, and staggered up and down.The quantity of chill roll 42 is one, and is set to heating roller 41 Rear side.Second traction is carried out to diaphragm 6 by above-mentioned five heating rollers 41 and a chill roll 42, while diaphragm 6 is first added It is cooling after heat.Pressing roll mechanism 43 is used to diaphragm 6 being pressed on heating roller 41 or chill roll 42, for preventing diaphragm 6 from laterally receiving Compression deformation.Preferably, the quantity of pressing roll mechanism 43 is multiple, and each heating roller 41 and the chill roll 42 respectively correspond one The pressing roll mechanism 43.

Referring to shown in Fig. 4, each pressing roll mechanism 43 respectively includes at least two edge roller 531a and 531b.Edge roller 531a It is fixedly installed in pressure roller shaft 533 and (is such as bolted) with 531b, pressure roller shaft 533 can rotationally connect around self-axis line It is connected on bracket 435.

Referring to shown in Fig. 5 a and 5b, two edge rollers 531a and 531b distinguish tapered or frustroconical, and two pressures Lesser one end of outer diameter of side roller 531a and 531b are oppositely arranged.I.e. the outer diameter of the outer end of edge roller 531a and 531b is greater than interior The outer diameter of end, " outer end " of edge roller are specifically referred to away from the farther away one end of another edge roller, and " inner end " specifically refers to Away from the closer one end of another edge roller.The roll surface of edge roller 531a and 531b are that rubber layer or edge roller 531a and 531b are whole Body is rubber rollers.

Referring to shown in Fig. 4 and Fig. 6, each pressing roll mechanism 43 is respectively further comprised for driving edge roller 531a and 531b mobile To compress the cylinder 432 of diaphragm 6.Edge roller 531a and 531b are connected to mounting plate 434, and mounting plate 434 is rotatably connected at Bracket 435, the piston rod of cylinder 432 are rotatably connected at mounting plate 434 and drive the edge roller to move with drive installation plate 434 It is dynamic.Specifically, the one end of mounting plate 434 is rotatably connected at bracket 435, and the end of pressure roller shaft 533 can be around Pivot Point Center Line is rotationally connected with the other end of mounting plate 434, connects especially by bearing, and the piston rod of cylinder 432 rotationally connects It is connected between the both ends of mounting plate 434, the cylinder body of cylinder 432 is then movably connected on bracket 435.With the work of cylinder 432 Stopper rod stretches out, and mounting plate 434 rotates, and pressure roller shaft 533 is close to heating roller 41 or chill roll 42 therewith, the pressure in pressure roller shaft 533 Roller 531a and 531b(are moved in Fig. 6 position shown in dotted line on side) and then diaphragm is pressed on heating roller 41 or chill roll 42.

The detailed process of second traction is carried out using secondary traction device are as follows: first use one or more groups of above-mentioned heating rollers 41 Traction diaphragm simultaneously heats diaphragm, and is carried out at compression using above-mentioned pressing roll mechanism 43 to the diaphragm on the heating roller 41 Reason；It is cooled down again using the diaphragm after above-mentioned 42 pairs of chill roll heating, using above-mentioned pressing roll mechanism 43 on chill roll 42 Diaphragm carries out compression processing；Diaphragm after processing is wound by winding step.

The manufacturing equipment of the utility model have a characteristic that by second traction using multiple heating rollers 41 to diaphragm into Row heating, heating surface (area) (HS is big, and heating time is long, is cooled down again by last root chill roll 42 after heating, removes in diaphragm Stress；Increase pressing roll mechanism 43 on heating roller 41 and chill roll 42, prevents heating and cooling procedure septation contraction distortion；Two A edge roller 531a and 531b is tapered or frustroconical, i.e. roll surface slightly tilt, and keeps film surface more smooth, effectively prevent corrugation with Deformation；The position edge roller 531a and 531b can be adjusted according to film surface width；Pressing roll mechanism 43 uses cylinder 432 as movement The pressure of executing agency, edge roller 531a and 531b can be adjusted by air pressure.

In the utility model, high temperature failure link can be cancelled, increase production efficiency, reduce energy consumption；Multiple heating Roller and membrane contacts area are big, are heated evenly, and it is good to eliminate internal stress effect；Using above-mentioned Novel press roll mechanism both can to avoid every Film cross-direction shrinkage bring quality problems, also effectively prevent pressure roller that membrane surface is caused to abrade.

The above embodiments are only for explaining the technical ideas and features of the present invention, is a kind of preferred embodiment, mesh Be enable those skilled in the art to understand the contents of the present invention and implement them accordingly, can not limit this with this The protection scope of utility model.

Claims

1. a kind of manufacturing equipment of lithium battery diaphragm, it is characterised in that: including secondary traction device, the secondary traction device packet One or more heating rollers are included, are equipped with the fluid channel to circulate for heat medium in the heating roller.

2. manufacturing equipment according to claim 1, it is characterised in that: the secondary traction device further includes for by diaphragm The pressing roll mechanism of compression, the pressing roll mechanism include at least two edge rollers, and two edge rollers distinguish tapered or truncation Cone, and lesser one end of outer diameter of two edge rollers is oppositely arranged.

3. manufacturing equipment according to claim 2, it is characterised in that: the pressing roll mechanism further includes for driving the pressure The mobile cylinder to compress diaphragm of side roller.

4. manufacturing equipment according to claim 3, it is characterised in that: the edge roller is connected on mounting plate, the peace Loading board is rotatably connected at bracket, and the piston rod of the cylinder is rotatably connected at the mounting plate to drive the installation It is mobile that strip moves the edge roller.

5. manufacturing equipment according to claim 4, it is characterised in that: each edge roller is set in pressure roller shaft, described The both ends of pressure roller shaft are connect with a mounting plate respectively.

6. manufacturing equipment according to claim 2, it is characterised in that: the secondary traction device further includes chill roll, institute State pressing roll mechanism quantity be it is multiple, each heating roller and the chill roll respectively correspond the pressing roll mechanism.

7. manufacturing equipment according to claim 1, it is characterised in that: be connected with conduction oil in the fluid channel.

8. manufacturing equipment according to claim 1-7, it is characterised in that: further include succeeding stretch device and winding Equipment, the secondary traction device are set between the succeeding stretch device and the wrap-up.

9. manufacturing equipment according to claim 8, it is characterised in that: further include before being set to the succeeding stretch device One-off drawing device and the extraction equipment between the one-off drawing device and the succeeding stretch device.