CN202462518U - Device for preventing lithium-battery packaging films for deforming due to case punching - Google Patents

Device for preventing lithium-battery packaging films for deforming due to case punching Download PDF

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Publication number
CN202462518U
CN202462518U CN2012200249858U CN201220024985U CN202462518U CN 202462518 U CN202462518 U CN 202462518U CN 2012200249858 U CN2012200249858 U CN 2012200249858U CN 201220024985 U CN201220024985 U CN 201220024985U CN 202462518 U CN202462518 U CN 202462518U
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CN
China
Prior art keywords
cutting knife
packaging film
towards
shell
plastic
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN2012200249858U
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Chinese (zh)
Inventor
张景国
茹永军
董峰
史离全
郑丁
张兴国
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wanxiang Group Corp
Wanxiang Electric Vehicle Co Ltd
Original Assignee
Wanxiang Group Corp
Wanxiang Electric Vehicle Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
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Priority to CN2012200249858U priority Critical patent/CN202462518U/en
Application granted granted Critical
Publication of CN202462518U publication Critical patent/CN202462518U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model discloses a device for preventing lithium-battery packaging films for deforming due to case punching, which comprises a concave die, a convex die, a case punching mold and a front cutting knife device, wherein the front cutting knife device is arranged on the side faces of the concave die and the convex die, the upper part of the front cutting knife device is provided with a cutting knife, and the lower part of the front cutting knife device is provided with a lower cutting die. According to the utility model, before an aluminum-plastic packaging film is formed, a small incision is cut at the middle position of front and rear two pits expected to be formed during case punching, so that the tensile force can be released at the incision, in such a way, no tensile force is generated at the edges of the formed pits, thereby avoiding the deformation of the edges of the formed pits; and the distance between the front and rear two pits can be reduced, so as to reduce materials; and the front cutting knife device can be separately arranged, and also can be assembled by using an original device; therefore, the front cutting knife device is extremely convenient to manufacture and use.

Description

A kind of lithium battery packaging film that prevents is towards the shell anamorphic attachment for cinemascope
Technical field
The utility model relates to a kind of battery production equipment, especially relates to a kind of lithium battery packaging film that prevents towards the shell anamorphic attachment for cinemascope.
Background technology
Electrokinetic cell is the important component part of electric automobile, is the critical component that influences the vehicle overall performance, and the exploitation of battery and production are the key factors of restriction whole electric automobile industry development; Along with the development of battery research and development technology, single bag battery capacity, size and weight are all becoming big, and the lithium-ion-power cell size has surpassed 10cm near A4 size, thickness aspect at present; The most process using lamination of lithium-ion-power cell mode, plastic-aluminum packaging film is all adopted in the external packing of lithium-ion-power cell, in two plastic-aluminum packaging film make-up modes of needs are wrapped in electric core; Again through four limits being sealed the packing of accomplishing battery, at design aspect, in order to guarantee the service life of battery external packing; 4cm is above just need to carry out handling towards shell to plastic-aluminum packaging film if the thickness of battery surpasses; Go out the pit that can lay lithium-ion-power cell, need be towards the size of pit according to the size and the thickness decision of battery, battery size is different; Plastic-aluminum packaging film is also different in the difficulty towards shell; Battery size is big more, thicker, plastic-aluminum packaging film to dash the shell difficulty just big more; Particularly at plastic-aluminum packaging film during continuously towards shell, the distortion that is stretched easily of the moulding edge of plastic-aluminum packaging film.For addressing this problem; Some schemes have also appearred; Disclose the patent application of " a kind of aluminium plastic bag method for die cutting that can suppress to curl " like the Chinese patent document, its application publication number is CN 102092059 A, and Shen Qing Publication day is on June 15th, 2011; Its summary of the invention is that the end face to the plastic-aluminum pouch heats before die-cut; Material surface and inner aluminium lamination are heated, end face and and its opposing top layer, bottom surface between 15 ℃ to 30 ℃ the temperature difference is arranged, from end face one side of plastic-aluminum pouch towards the bottom surface one side carry out die-cut; This invention compensates the distortion of plastic-aluminum pouch through creating suitable external environment; To guarantee towards shell and to cut effect,, can produce effect if temperature control can put in place; But plastic-aluminum packaging film also is that the thickness of plastic-aluminum pouch is just little originally; The temperature difference of controlling between its end face and the bottom surface is very difficult, and the cost of paying can be very big, is not the scheme of a convenience, economy.So it is easy to use to be necessary to develop a kind of manufacturing, lithium battery packaging film is towards the shell anamorphic attachment for cinemascope in low cost preventing.
Summary of the invention
The utility model is for the lithium battery packaging film that overcomes prior art is easy to generate the problem of distortion towards shell, provides a kind of manufacturing easy to use, and lithium battery packaging film is towards the shell anamorphic attachment for cinemascope in low cost preventing.
To achieve these goals; The utility model adopts following technical scheme: a kind of lithium battery packaging film that prevents is towards the shell anamorphic attachment for cinemascope; Comprise die, punch, towards the shell mould; Also comprise the preposition cutting knife device of being located at die, punch side, described preposition cutting knife device top is provided with cutting knife, and preposition cutting knife device bottom is provided with and cuts counterdie.As the plastic-aluminum packaging film of lithium battery wrapping film, be strip, it is realized through mould towards shell; Mould comprises die, punch and towards the shell mould, towards shell the time, punch is descending; Push down plastic-aluminum packaging film with die, press down towards the shell mould then, go out pit to plastic-aluminum packaging film; In this process, the plastic-aluminum packaging film distortion that is stretched, its suffered tensile force is the plastic-aluminum packaging film transmission of direction forwards, backwards; Cause the pit edge of moulding just to be stretched and be out of shape,, but can cause waste of material like this if the spacing of pit can be offset the part distortion before and after strengthening; Therefore the utility model adopts to the method for plastic-aluminum packaging film increase tensile stress release groove and eliminates stretcher strain, and promptly before the plastic-aluminum packaging film moulding, the middle part of two pits cuts out a little otch before and after estimating; Make tensile force to discharge, thereby no longer the moulding pit edge is produced tensile force, thereby front and back two pit spacings just can be dwindled economical with materials in incision; And this otch can be through being provided with a preposition cutting knife device and realizing that preposition cutting knife device can be automation mechanized operation in plastic-aluminum packaging film entering die, punch position before, and top comprises a cutting knife; The bottom is for cutting counterdie, and the automatic incision of cutting knife cuts out otch on plastic-aluminum packaging film.
As preferably; Described preposition cutting knife device top is provided with air cylinder under pressing plate, pressing plate lift cylinder, the cutting knife; Preposition cutting knife device bottom cuts counterdie and is made as platform; Described pressing plate lift cylinder with cut counterdie and fix, described pressing plate is connected with the pressing plate lift cylinder, air cylinder and cutting knife are fixed and are placed in the middle part of the pressing plate under the described cutting knife.The automation mechanized operation of cutting knife can be carried out through cylinder; Because plastic-aluminum packaging film is relatively thinner; Need earlier it to be compressed before cutting otch above that, and then cut, so be provided with pressing plate and pressing plate lift cylinder with cutting knife; The pressing plate lift cylinder can be directly or through framework indirectly with cut the counterdie platform and fix; And the control pressing plate can be pressed on plastic-aluminum packaging film and cut on the counterdie platform, and air cylinder under the cutting knife that is fixed on the pressing plate is set in addition again, treat pressing plate compress plastic-aluminum packaging film after controlled sanction cutting knife on plastic-aluminum packaging film, cut otch.
As preferably, described cutting knife device is provided with rail plate, sledge motor, and described rail plate, sledge motor are located at the pressing plate middle part, and air cylinder places on the rail plate under the described cutting knife.Because the lithium-ion electric pool size differs; The size of plastic-aluminum packaging film is also inconsistent; The otch size that therefore need on plastic-aluminum packaging film, cut is also different, brings convenience for giving to manufacture, and air cylinder is set to driven also and can on rail plate, be slided by sledge motor under cutting knife and the cutting knife; The otch size has realized generalization by its distance decision of on rail plate, sliding.
As preferably, described cutting knife and punch are fixed.The action of dashing the shell mould of plastic-aluminum packaging film at first is that patrix also is that punch presses down, and it is on the die that plastic-aluminum packaging film is pressed on counterdie, presses down towards the shell mould then; On plastic-aluminum packaging film, go out pit, utilize this sequence of movement of mould, can be fixed on cutting knife on the punch; When punch pressed down, the cutting knife incision of taking advantage of a situation can be prior to pressing down This move and on plastic-aluminum packaging film, cut out otch towards the shell mould; So just utilized original parts, simplified the structure.
As preferably, describedly cut counterdie and die is fixed.The position that cuts counterdie is the same with die; All below plastic-aluminum packaging film; Cut counterdie and cooperate, can make cutting knife on plastic-aluminum packaging film, cut out otch more easily, be different from cutting knife and cut counterdie with cutting knife; Be fixed, be fit to be fixed together with same fixed die.
As preferably, described preposition cutting knife device also is provided with slide rail, servomotor, and described slide rail is located between cutting knife and the punch, and described servomotor is fixedly connected with cutting knife.When cutting knife cut otch on plastic-aluminum packaging film, the degree of depth that cutting knife presses down need be adjusted according to the size of plastic-aluminum packaging film, utilizes the servomotor adjustment stroke, made that cutting knife sliding distance on slide rail is controlled, just can the dismounting cutting knife.
As preferably, described cutting knife is a bevel-tool, and the described counterdie that cuts is the right angle cutting knife.Aluminum-plastic packaged film thickness is limited, and the combination of bevel-tool and right angle cutting knife can make otch smooth smooth, does not produce and tears phenomenon.
Therefore, the utlity model has following beneficial effect: (1) can prevent that the lithium battery plastic-aluminum packaging film from producing stretcher strain in the shell process; (2) simple in structure, production and installation is convenient.
Description of drawings
Fig. 1 is a kind of structural representation of the utility model.
Fig. 2 is a kind of structural representation of the preposition cutting knife device of the utility model.
Fig. 3 is the another kind of structural representation of the utility model.
Among the figure: 1, die 2, punch 3, towards shell mould 4, preposition cutting knife device
5, cutting knife 6, cut counterdie 7, pressing plate 8, pressing plate lift cylinder
9, air cylinder 10, rail plate 11, sledge motor under the cutting knife
12, slide rail 13, servomotor.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is done further description.
In Fig. 1, embodiment one shown in Figure 2; A kind of lithium battery packaging film that prevents is towards the shell anamorphic attachment for cinemascope; Comprise die 1, punch 2, towards shell mould 3, the preposition cutting knife device of setting up separately in addition 4 is positioned at die 1, punch 2 sides, what platform-like arranged at preposition cutting knife device 4 bottoms cuts counterdie 6; Preposition cutting knife device 4 tops are provided with pressing plate 7, pressing plate lift cylinder 8; Pressing plate lift cylinder 8 is fixed with cutting counterdie 6 through framework, and pressing plate lift cylinder 8 piston rods vertically are connected with pressing plate 7, and pressing plate 7 middle parts are fixed with rail plate 10 and sledge motor 11; Cutting knife 5 air cylinder 9 under cutting knife places on the rail plate 10, and cutting knife 5 is fixed under the cutting knife on air cylinder 9 piston rods.
The practical implementation process is, before plastic-aluminum packaging film gets into die 1, punch 2, plastic-aluminum packaging film earlier will from preposition cutting knife device 4 cut in the middle of counterdie 6 and the pressing plate 7 through and cut; When cutting, pressing plate lift cylinder 8 downlink drive pressing plates 7 are pushed down plastic-aluminum packaging film, and air cylinder 9 is descending under the cutting knife; Drive cutting knife 5 and pierce through plastic-aluminum packaging film, sledge motor 11 drives that air cylinder 9 moves together under cutting knife 5 and the cutting knife, cut out otch to plastic-aluminum packaging film after; Air cylinder 9 drive cutting knife 5 are up under the cutting knife, accomplish the plastic-aluminum packaging film otch, and pressing plate lift cylinder 8 up drive pressing plates 7 unclamp plastic-aluminum packaging film afterwards; Sledge motor 11 drives that air cylinder 9 moves back to origin position together under cutting knife 5 and the cutting knife, and subsequent plastic-aluminum packaging film gets into die 1, punch 2, punch 2 is descending push down plastic-aluminum packaging film after; Press down towards shell mould 3, push down the plastic-aluminum packaging film continued and press to the formation pit, in this process; The direction transmission forwards, backwards of the suffered tensile force of plastic-aluminum packaging film; Because preposition cutting knife device 4 has cut out otch on plastic-aluminum packaging film, tensile force obtains discharging in incision, and the pit of compression moulding just can not be out of shape; Up respectively towards shell mould 3, punch 2 then, plastic-aluminum packaging film is accomplished towards shell.
Among the embodiment two as shown in Figure 3, a kind of lithium battery packaging film that prevents is towards the shell anamorphic attachment for cinemascope, comprises die 1, punch 2, towards shell mould 3; Wherein, the slide rail 12 of above-below direction has been fixed in punch 2 sides, and cutting knife 5 is arranged on the slide rail 12 and with servomotor 13 and is connected; Die 1 side has been fixed and has been cut counterdie 6; Cutting knife 5 with cut counterdie 6 about over against, cutting knife 5 is a bevel-tool, cutting counterdie 6 is the right angle cutting knife.
The practical implementation process is that after plastic-aluminum packaging film got into die 1, punch 2, cutting knife 5 was under the driving of servomotor 13; Move down along slide rail 12, bevel-tool cutting knife 5 cuts counterdie 6 with right angle cutting knife 1 and cuts plastic-aluminum packaging film, and on the preposition of plastic-aluminum packaging film, carries out otch; Cutting knife 5 is under the driving of servomotor 13 after accomplishing, and moving up along slide rail 12 resets, subsequent punch 2 is descending push down plastic-aluminum packaging film after; Press down towards shell mould 3, push down the plastic-aluminum packaging film continued and press to the formation pit, in this process; The direction transmission forwards, backwards of the suffered tensile force of plastic-aluminum packaging film; Because preposition cutting knife device 4 has cut out otch on plastic-aluminum packaging film, tensile force obtains discharging in incision, and the pit of compression moulding just can not be out of shape; Up respectively towards shell mould 3, punch 2 then, plastic-aluminum packaging film is accomplished towards shell.

Claims (7)

1. one kind prevents that lithium battery packaging film is towards the shell anamorphic attachment for cinemascope; Comprise die (1), punch (2), towards shell mould (3); It is characterized in that; Also comprise the preposition cutting knife device (4) of being located at die (1), punch (2) side, described preposition cutting knife device (4) top is provided with cutting knife (5), and preposition cutting knife device (4) bottom is provided with and cuts counterdie (6).
2. a kind of lithium battery packaging film that prevents according to claim 1 is towards the shell anamorphic attachment for cinemascope; It is characterized in that; Described preposition cutting knife device (4) top is provided with air cylinder (9) under pressing plate (7), pressing plate lift cylinder (8), the cutting knife; Preposition cutting knife device (4) bottom cuts counterdie (6) and is made as platform; Described pressing plate lift cylinder (8) is fixed with cutting counterdie (6), and described pressing plate (7) is connected with pressing plate lift cylinder (8), and pressing plate (7) middle part is fixed and placed to air cylinder under the described cutting knife (9) with cutting knife (5).
3. a kind of lithium battery packaging film that prevents according to claim 1 and 2 is towards the shell anamorphic attachment for cinemascope; It is characterized in that; Described cutting knife device (4) is provided with rail plate (10), sledge motor (11); Described rail plate (10), sledge motor (11) are located at pressing plate (7) middle part, and air cylinder under the described cutting knife (9) places on the rail plate (10).
4. a kind of lithium battery packaging film that prevents according to claim 1 is characterized in that towards the shell anamorphic attachment for cinemascope described cutting knife (5) is fixing with punch (2).
5. a kind of lithium battery packaging film that prevents according to claim 1 is characterized in that towards the shell anamorphic attachment for cinemascope the described counterdie (6) that cuts is fixing with die (1).
According to claim 1 or 4 or 5 described a kind of lithium battery packaging films that prevent towards the shell anamorphic attachment for cinemascope; It is characterized in that; Described preposition cutting knife device (4) also is provided with slide rail (12), servomotor (13); Described slide rail (12) is located between cutting knife (5) and the punch (2), and described servomotor (13) is fixedly connected with cutting knife (5).
According to claim 1 or 4 or 5 described a kind of lithium battery packaging films that prevent towards the shell anamorphic attachment for cinemascope, it is characterized in that described cutting knife (5) is a bevel-tool, the described counterdie (6) that cuts is the right angle cutting knife.
CN2012200249858U 2012-01-19 2012-01-19 Device for preventing lithium-battery packaging films for deforming due to case punching Expired - Fee Related CN202462518U (en)

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CN2012200249858U CN202462518U (en) 2012-01-19 2012-01-19 Device for preventing lithium-battery packaging films for deforming due to case punching

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Application Number Priority Date Filing Date Title
CN2012200249858U CN202462518U (en) 2012-01-19 2012-01-19 Device for preventing lithium-battery packaging films for deforming due to case punching

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103660270A (en) * 2013-12-05 2014-03-26 杭州金色能源科技有限公司 Apparatus and method for continuous stretch forming of aluminium plastic membrane
CN109473730A (en) * 2018-11-01 2019-03-15 惠州市超聚电池有限公司 A kind of button cell production method and button cell
CN110315595A (en) * 2019-07-03 2019-10-11 重庆市维都利新能源有限公司 A kind of soft bag lithium ionic cell arc trimming device
CN114899537A (en) * 2022-06-06 2022-08-12 昆山华誉自动化科技有限公司 Soft package lithium battery aluminum plastic film heat sealing method and soft package lithium battery structure

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103660270A (en) * 2013-12-05 2014-03-26 杭州金色能源科技有限公司 Apparatus and method for continuous stretch forming of aluminium plastic membrane
CN109473730A (en) * 2018-11-01 2019-03-15 惠州市超聚电池有限公司 A kind of button cell production method and button cell
CN110315595A (en) * 2019-07-03 2019-10-11 重庆市维都利新能源有限公司 A kind of soft bag lithium ionic cell arc trimming device
CN114899537A (en) * 2022-06-06 2022-08-12 昆山华誉自动化科技有限公司 Soft package lithium battery aluminum plastic film heat sealing method and soft package lithium battery structure
CN114899537B (en) * 2022-06-06 2023-09-01 昆山华誉自动化科技有限公司 Soft package lithium battery aluminum plastic film heat sealing method and soft package lithium battery structure

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C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20121003

Termination date: 20190119

CF01 Termination of patent right due to non-payment of annual fee