CN113471623A - Trimming treatment method for lithium battery diaphragm after heat setting - Google Patents

Trimming treatment method for lithium battery diaphragm after heat setting Download PDF

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Publication number
CN113471623A
CN113471623A CN202110568661.4A CN202110568661A CN113471623A CN 113471623 A CN113471623 A CN 113471623A CN 202110568661 A CN202110568661 A CN 202110568661A CN 113471623 A CN113471623 A CN 113471623A
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plate
mounting
rotating shaft
column
electric
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CN113471623B (en
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张裕台
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Hunan Nuobang New Energy Technology Co ltd
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/40—Separators; Membranes; Diaphragms; Spacing elements inside cells
    • H01M50/403—Manufacturing processes of separators, membranes or diaphragms
    • H01M50/406—Moulding; Embossing; Cutting
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/40—Separators; Membranes; Diaphragms; Spacing elements inside cells
    • H01M50/403—Manufacturing processes of separators, membranes or diaphragms
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

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  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Secondary Cells (AREA)

Abstract

The invention relates to the field of battery diaphragms, in particular to a trimming treatment method for a lithium battery diaphragm after heat setting. The technical problem to be solved is as follows: provides a trimming treatment method for a lithium battery diaphragm after heat setting. The technical scheme of the invention is as follows: a trimming treatment method after heat setting of a lithium battery diaphragm adopts the following processing equipment, and the processing equipment comprises a double overall stretching system, a contraction trimming system, a trimming collection system, a first electric slide rail and a second electric slide rail; the mounting bottom plate is connected with the containing box. The invention realizes the effects of uniformly stretching the formed lithium battery diaphragm, performing automatic thermal shrinkage treatment, performing secondary thermal shrinkage on the edge part which is not shrunk and leveled after thermal shrinkage, performing secondary shrinkage adjustment on the edge which is not shrunk and leveled, and trimming the edge part of the battery diaphragm after shrinkage.

Description

Trimming treatment method for lithium battery diaphragm after heat setting
Technical Field
The invention relates to the field of battery diaphragms, in particular to a trimming treatment method for a lithium battery diaphragm after heat setting.
Background
In the construction of lithium batteries, the separator is one of the key internal components. The performance of the diaphragm determines the interface structure, internal resistance and the like of the battery, directly influences the capacity, circulation, safety performance and other characteristics of the battery, and the diaphragm with excellent performance plays an important role in improving the comprehensive performance of the battery. The separator has a main function of separating the positive electrode and the negative electrode of the battery to prevent short circuit due to contact between the two electrodes, and also has a function of allowing electrolyte ions to pass therethrough. The separator material is non-conductive, and the physical and chemical properties of the separator have a great influence on the performance of the battery. The battery is different in kind and the separator used is different. In the lithium battery system, since the electrolyte is an organic solvent system, a separator material resistant to an organic solvent is required, and a polyolefin porous film having a high strength and a thin film is generally used.
Currently, the lithium battery separator in the prior art is a thin film with a microporous structure. Be formed with microporous structure's semi-manufactured goods lithium battery diaphragm after biaxial stretching, still need carry out the heat setting under high temperature environment and handle, with the heat shrinkage factor who reduces semi-manufactured goods lithium battery diaphragm, thereby obtain the stable-size finished product lithium battery diaphragm, but at prior art lithium battery diaphragm heat setting in-process, lithium battery diaphragm is being heated the back, the shrink is very fast in the middle part of the edge, four right angle departments at lithium battery diaphragm, because four angles are connected with two limits respectively, long limit department is because length is longer, consequently the heat that receives in unit area on the long edge direction is less, and lithium battery diaphragm's minor face is then heat great in the unit area, the minor face shrink rate of lithium battery diaphragm is far greater than the shrink rate of long limit position promptly, the middle part that leads to the minor face shrinks very fast and forms sunkenly, the edge of lithium battery diaphragm does not flush promptly, can't put into use.
Aiming at the problems, a trimming treatment method for a lithium battery diaphragm after heat setting is provided.
Disclosure of Invention
In order to overcome prior art lithium battery diaphragm heat setting in-process, lithium battery diaphragm is being heated the back, the shrink is very fast in the middle part of the edge, four right angle departments at lithium battery diaphragm, because four angles are connected with two limits respectively, long limit department is longer because length, consequently the heat that receives of unit area on the long limit direction is less, and lithium battery diaphragm's minor face is then heat in the unit area great, the minor face shrink rate of lithium battery diaphragm is far greater than the shrink rate of long limit position promptly, the middle part that leads to the minor face shrinks very fast formation sunken, lithium battery diaphragm's edge does not flush promptly, unable shortcoming that drops into use, the technical problem that solves is: provides a trimming treatment method for a lithium battery diaphragm after heat setting.
The technical scheme of the invention is as follows: a trimming treatment method after heat setting of a lithium battery diaphragm adopts the following processing equipment, and the processing equipment comprises an installation bottom plate, a containing box, a support column, an installation frame plate, a double overall stretching system, a contraction trimming system, a trimming collection system, a lower heating plate, a first lifting electric sliding column, an upper heating plate, a second lifting electric sliding column, a first electric sliding rail and a second electric sliding rail; the mounting bottom plate is connected with the containing box; welding the upper part of the mounting bottom plate with the supporting columns; the upper part of the supporting column is welded with the mounting frame plate; the upper part of the mounting frame plate is connected with a double overall stretching system; the upper part of the mounting frame plate is connected with a contraction trimming system; the upper part of the mounting bottom plate is connected with the trimming collecting system; the upper part of the mounting frame plate is connected with the lower heating plate; the upper part of the mounting frame plate is connected with a first lifting electric sliding column; the upper heating plate is in sliding connection with the first lifting electric sliding column; the second lifting electric sliding column above the mounting frame plate is connected; the second lifting electric sliding column is connected with the contraction trimming system; the first electric slide rail above the mounting frame plate is connected with a bolt; the first electric sliding rail is in sliding connection with the double overall stretching system; the second electric slide rail above the mounting frame plate is connected with a bolt; the second electric sliding rail is in sliding connection with the double overall stretching system;
the trimming treatment method after the heat setting of the lithium battery diaphragm comprises the following steps:
the method comprises the following steps: uniformly stretching, namely fixing the lithium battery diaphragm to a double comprehensive stretching system, namely controlling the double comprehensive stretching system to perform double uniform stretching on the lithium battery diaphragm;
step two: baking, shrinking and shaping, namely after the lithium battery diaphragm is stretched by the double comprehensive stretching system, flatly paving the lithium battery diaphragm on the top surface of the lower heating plate, controlling the four first lifting electric sliding columns to drive the upper heating plate to move downwards to be in contact with the lithium battery diaphragm on the top surface of the lower heating plate, and then controlling the upper heating plate to start to shrink;
step three: shrinkage trimming, namely fixing the lithium battery diaphragm to a shrinkage trimming system after the lower heating plate and the upper heating plate heat the lithium battery diaphragm, namely controlling the shrinkage trimming system to trim the lithium battery diaphragm;
step four: trimming and finishing, namely after the lithium battery diaphragm is trimmed by the contraction trimming system, fixing and flatly paving the lithium battery diaphragm at the trimming and collecting system again, and then controlling the trimming and collecting system to trim, separate and collect the edges of the lithium battery diaphragm.
In one embodiment, the dual comprehensive stretching system comprises a power motor, a first rotating shaft rod, a first driving wheel, a second driving wheel, a bearing frame plate, a first stretching mechanism, a second stretching mechanism, a third driving wheel, a second rotating shaft rod, a first bearing frame column, a first flat gear, a fourth driving wheel, a third rotating shaft rod, a second flat gear, a second bearing frame column, a fourth rotating shaft rod, a third flat gear and a fourth flat gear; the lower part of the power motor is connected with the mounting frame plate through bolts; the first rotating shaft rod is fixedly connected with an output shaft of the power motor; the axle center of the first driving wheel is fixedly connected with the first rotating shaft rod; the axle center of the second driving wheel is fixedly connected with the first rotating shaft rod; the bearing frame plate is rotationally connected with the first rotating shaft rod; the lower part of the bearing frame plate is connected with the mounting frame plate through bolts; the lower part of the first stretching mechanism is in sliding connection with the first electric slide rail; the lower part of the first stretching mechanism is in sliding connection with a second electric slide rail; the lower part of the second stretching mechanism is in sliding connection with the first electric slide rail; the lower part of the second stretching mechanism is in sliding connection with a second electric slide rail; the outer ring surface of the third driving wheel is in transmission connection with the first driving wheel through a belt; the outer surface of the second rotating shaft rod is fixedly connected with a third driving wheel; the first bearing frame column is rotationally connected with the second rotating shaft rod; the lower part of the first bearing frame column is connected with the mounting frame plate through a bolt; the axle center of the first flat gear is fixedly connected with the second rotating shaft rod; the outer ring surface of the fourth driving wheel is in transmission connection with the second driving wheel through a belt; the outer surface of the third rotating shaft rod is fixedly connected with a fourth driving wheel; the axle center of the second flat gear is fixedly connected with the third rotating shaft rod; the second bearing frame column is rotationally connected with the third rotating shaft rod; the lower part of the second bearing frame column is connected with the mounting frame plate through bolts; the fourth rotating shaft rod is rotationally connected with the second bearing frame column; the axle center of the third flat gear is fixedly connected with the fourth rotating shaft rod; the third flat gear is meshed with the second flat gear; the axle center of the fourth flat gear is fixedly connected with the fourth rotating shaft rod.
In one embodiment, the contraction trimming system comprises a first installation frame plate, a first edge positioning contraction mechanism, a second edge positioning contraction mechanism, a fixed bedplate, a first fixed strip plate, a second fixed strip plate, a first gradient temperature type heating plate and a second gradient temperature type heating plate; the first mounting frame plate is in sliding connection with the second lifting electric sliding column; the first edge positioning and contracting mechanism is in bolted connection with the first mounting frame plate; the second edge positioning and contracting mechanism is in bolted connection with the first mounting frame plate; the lower part of the fixed bedplate is connected with the mounting frame plate through bolts; the first fixed slat is inserted with the fixed bedplate; the second fixed lath is inserted with the fixed bedplate; the first gradual-change-temperature heating plate is connected with the mounting frame plate; the second gradual change temperature type heating plate is connected with the mounting frame plate.
In one embodiment, the trimming collection system comprises a mounting portal frame, a cross telescopic lifting frame, a second mounting frame plate, a first electric push rod, a first cutter bar, a second electric push rod, a third electric push rod, a second cutter bar, a fourth electric push rod, a first inclined blanking channel plate, a second inclined blanking channel plate, a collection basket, a connecting mounting column and a flattening plate; installing a portal frame and a cross telescopic lifting frame to be connected through bolts; the lower part of the installation portal frame is connected with an installation bottom plate through bolts; the lower part of the cross telescopic lifting frame is connected with a second mounting frame plate through bolts; the first electric push rod is connected with the second mounting frame plate; the first cutter strip is connected with the first electric push rod; the second electric push rod is connected with the second mounting frame plate; the second electric push rod is connected with the first cutter bar; the third electric push rod is connected with the second mounting frame plate; the second cutter strip is connected with a third electric push rod; the fourth electric push rod is connected with the second mounting frame plate; the fourth electric push rod is connected with the second cutter strip; the first inclined blanking canal plate is fixedly connected with the installation portal frame; the second inclined blanking canal plate is fixedly connected with the installation portal frame; the lower part of the collecting basket is connected with the mounting bottom plate through bolts; connecting the mounting column with the collecting basket through bolts; the spread plate is fixedly connected with the connecting mounting column.
In one embodiment, the first stretching mechanism comprises a mounting assembly plate, a first mounting side column, a first electric rotating shaft connecting plate, a second electric rotating shaft connecting plate, a first hollow clamping column, a second hollow clamping column, a third electric rotating shaft connecting plate, a fourth electric rotating shaft connecting plate, a second mounting side column, a first mounting vertical frame, a first electric roller, a second electric roller, a bearing bedplate, a batten plate, a fifth electric push rod, a sixth electric push rod, a friction stretching pull column, a first connecting slider, a first limiting chute box, a first reset spring, a second connecting slider, a second limiting chute box, a second reset spring, a fifth rotating shaft rod, a fifth flat gear, a first torsion spring rotating shaft seat, a first mounting frame column, a second torsion spring rotating shaft seat, a second mounting frame column, a half gear, a sixth rotating shaft rod, a sixth flat gear and a second mounting frame; the lower part of the mounting assembly plate is connected with a first electric slide rail in a sliding way; the lower part of the mounting assembly plate is connected with a second electric slide rail in a sliding way; the lower part of the first mounting side column is fixedly connected with the mounting aggregation plate; the first electric rotating shaft connecting plate is connected with the first mounting side column; the second electric rotating shaft connecting plate is connected with the first mounting side column; the first hollow clamping column is connected with the first electric rotating shaft connecting plate; the second hollow clamping column is connected with a second electric rotating shaft connecting plate; the third electric rotating shaft connecting plate is connected with the first hollow clamping column; the fourth electric rotating shaft connecting plate is connected with the second hollow clamping column; the lower part of the second mounting side column is fixedly connected with the mounting assembly plate; the second mounting side column is connected with a third electric rotating shaft connecting plate; the second mounting side column is connected with a fourth electric rotating shaft connecting plate; the first mounting vertical frame is fixedly connected with the second mounting side column; the first mounting vertical frame is fixedly connected with the first mounting side column; the first electric roller is connected with the first installation vertical frame; the second electric roller is connected with the second mounting vertical frame; the lower part of the bearing bedplate is fixedly connected with the mounting aggregation plate; a pressure strip plate is arranged above the bearing bedplate; the lower part of the fifth electric push rod is connected with the layering plate; the fifth electric push rod is connected with the first mounting vertical frame; the lower part of the sixth electric push rod is connected with the layering plate; the sixth electric push rod is connected with the first mounting vertical frame; a friction stretching column is arranged above the bearing bedplate; the first connecting slide block is fixedly connected with the friction stretching column; the first limiting sliding groove box is in sliding connection with the first connecting sliding block; the first return spring is connected with the first limiting chute box; the first reset spring is connected with the first connecting slide block; the second connecting slide block is fixedly connected with the friction stretching column; the second limiting sliding groove box is in sliding connection with the second connecting sliding block; the second reset spring is connected with the second limiting chute box; the second return spring is connected with the second connecting slide block; the fifth rotating shaft rod is fixedly connected with the second limiting sliding groove box; the fifth rotating shaft rod is fixedly connected with the first limiting sliding groove box; the axle center of the fifth flat gear is fixedly connected with the fifth rotating shaft rod; the first torsion spring rotating shaft seat is connected with the fifth rotating shaft rod; the first mounting frame column is connected with the first torsion spring rotating shaft seat; the lower part of the first mounting frame column is fixedly connected with the mounting assembly plate; the second torsion spring rotating shaft seat is connected with the fifth rotating shaft rod; the second mounting frame column is connected with the second torsion spring rotating shaft seat; the lower part of the second mounting frame column is fixedly connected with the mounting assembly plate; the axle center of the half gear is meshed with the fifth flat gear; the outer surface of the sixth rotating shaft rod is fixedly connected with the half gear; the sixth rotating shaft rod is rotationally connected with the second mounting frame column; the sixth rotating shaft rod is rotationally connected with the first mounting frame column; the axis of the sixth flat gear is fixedly connected with the sixth rotating shaft rod; the second mounting vertical frame is fixedly connected with the second mounting side column; the second mounting mullion is fixedly connected with the first mounting side column.
In one embodiment, the first edge positioning and contracting mechanism comprises a mounting cross rod, a first mounting vertical rod, a first limiting sliding column, a first sliding connection seat plate, a first electric expansion plate, an elastic bending strip, a second mounting vertical rod, a second limiting sliding column, a second sliding connection seat plate, a second electric expansion plate, an inner sleeve elastic bending rod and an outer elastic sleeve; the upper part of the mounting cross rod is connected with the first mounting frame plate through bolts; the first mounting vertical rod is fixedly connected with the mounting cross rod; the first limiting sliding column is connected with the first mounting vertical rod through a bolt; the first sliding connection seat plate is in sliding connection with the first limiting sliding column; the first electric expansion plate is connected with the first sliding connection seat plate; the elastic bending strip is connected with the first electric expansion plate; the second mounting vertical rod is fixedly connected with the mounting cross rod; the second limiting sliding column is connected with the second mounting vertical rod through a bolt; the second sliding connection seat plate is in sliding connection with the second limiting sliding column; the second electric expansion plate is connected with the second sliding connection seat plate; the second electric expansion plate is connected with the elastic bending strip; the inner sleeve elastic bending rod is sleeved with the second mounting vertical rod; the inner sleeve elastic bending rod is sleeved with the first mounting vertical rod; the inner side of the outer elastic sleeve is sleeved with the inner elastic bending rod of the inner sleeve.
In one embodiment, the fixed platen is internally provided with a cavity and is provided with a water inlet nozzle and a water outlet nozzle.
In one embodiment, the collection basket side walls are provided with atomizing spray nozzles.
In one embodiment, the bottom of the first hollow clamping column and the top of the second hollow clamping column are provided with rubber pads.
The invention has the beneficial effects that: (1) in order to solve the problems that in the heat setting process of the lithium battery diaphragm in the prior art, after the lithium battery diaphragm is heated, the middle part of the edge is shrunk quickly, four corners of the lithium battery diaphragm are respectively connected with two edges, and the long edge is longer, so that the heat received by a unit area in the long edge direction is smaller, and the heat in the unit area is larger at the short edge of the lithium battery diaphragm, namely the shrinkage rate of the short edge of the lithium battery diaphragm is far greater than that of the long edge, so that the middle part of the short edge is shrunk quickly to form a recess, namely the edge of the lithium battery diaphragm is not flush, and the lithium battery diaphragm cannot be put into use;
(2) the lithium battery diaphragm is firstly fixed to the double comprehensive stretching system when in use, namely the double comprehensive stretching system is controlled to carry out double uniform stretching on the lithium battery diaphragm, after the double comprehensive stretching system stretches the lithium battery diaphragm, the lithium battery diaphragm is flatly laid on the top surface of a lower heating plate, then four first lifting electric sliding columns are controlled to drive an upper heating plate to move downwards to be in contact with the lithium battery diaphragm on the top surface of the lower heating plate, then the heating and shrinking are controlled to start, after the lower heating plate and the upper heating plate heat the lithium battery diaphragm, the lithium battery diaphragm is fixed to the contraction trimming system, then three groups of second lifting electric sliding columns are controlled to drive the contraction trimming system to descend, namely the contraction trimming system is controlled to trim the lithium battery diaphragm, after the contraction trimming system finishes trimming the lithium battery diaphragm, fixedly and flatly paving the lithium battery diaphragm on the trimming collection system again, and then controlling the trimming collection system to trim, separate and collect the edges of the lithium battery diaphragm;
(3) the automatic heat setting after the lithium battery diaphragm shaping is realized, the shaping lithium battery diaphragm is uniformly stretched and treated, automatic heat shrinkage treatment is performed, secondary heat shrinkage is performed on the edge part which is not parallel and level in shrinkage after heat shrinkage, the edge part which is not parallel and level in shrinkage is subjected to secondary heat shrinkage adjustment, the edge part of the battery diaphragm after the shrinkage is finished is trimmed, and the effect of the parallel and level lithium battery diaphragm is obtained.
Drawings
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a schematic perspective view of a dual full-face stretching system according to the present invention;
FIG. 3 is a schematic perspective view of the present invention;
FIG. 4 is a schematic perspective view of the trim collection system of the present invention;
FIG. 5 is a schematic perspective view of a first portion of the trim collection system of the present invention;
FIG. 6 is a first perspective view of the first stretching mechanism of the present invention;
FIG. 7 is a second perspective view of the first stretching mechanism of the present invention;
FIG. 8 is a third perspective view of the first stretching mechanism of the present invention;
FIG. 9 is a fourth perspective view of the first stretching mechanism of the present invention;
fig. 10 is a schematic perspective view of the first edge positioning and retracting mechanism of the present invention.
Labeled as: 1_ mounting base plate, 2_ storage bin, 3_ support post, 4_ mounting plate, 5_ dual full-face stretching system, 6_ shrink trimming system, 7_ trim collection system, 8_ lower hot plate, 9_ first elevator motor slide, 10_ upper hot plate, 11_ second elevator motor slide, 12_ first motor slide, 13_ second motor slide, 501_ motor, 502_ first pivot rod, 503_ first drive wheel, 504_ second drive wheel, 505_ bearing plate, 506_ first stretching mechanism, 507_ second stretching mechanism, 508_ third drive wheel, 509_ second pivot rod, 5010_ first bearing post, 5011_ first flat gear, 5012_ fourth drive wheel, 5013_ third pivot rod, 5014_ second flat gear, 5015_ second bearing post, 5016_ fourth pivot rod, 5017_ third flat gear, 5018_ fourth flat gear, 501601 _ first mounting plate, 602_ first edge positioning and shrinking mechanism, 603_ second edge positioning and shrinking mechanism, 604_ fixed platen, 605_ first fixed slat, 606_ second fixed slat, 607_ first gradient temperature heating plate, 608_ second gradient temperature heating plate, 701_ installation portal frame, 702_ cross telescopic crane, 703_ second installation frame plate, 704_ first electric putter, 705_ first cutter bar, 706_ second electric putter, 707_ third electric putter, 708_ second cutter bar, 709_ fourth electric putter, 7010_ first inclined blanking channel plate, 7011_ second inclined blanking channel plate, 7012_ collection basket, 7013_ connection installation column, 7014_ extension plate, 50601_ installation set plate, 50602_ first installation side column, 50603_ first electric rotation shaft connecting plate, 50604_ second rotation shaft connecting plate, 50605_ first hollow clamping column, 50606_ second hollow clamping column, 50607_ third hollow clamping column, 50603_ third electric rotation shaft connecting plate, 50608_ fourth electric spindle link, 50609_ second mounting side post, 50610_ first mounting mullion, 50611_ first electric roller, 50612_ second electric roller, 50613_ load bed, 50614_ batten, 50615_ fifth electric pushrod, 50616_ sixth electric pushrod, 50617_ friction tension column, 50618_ first link block, 50619_ first limit chute box, 50620_ first return spring, 50621_ second link block, 50622_ second limit chute box, 50623_ second return spring, 50624_ fifth pivot rod, 50625_ fifth flat gear, 50626_ first torsion spring pivot seat, 50627_ first mounting pillar, 50628_ second torsion spring pivot seat, 50629_ second mounting pillar, 50630_ half-gear, 50631_ sixth pivot gear, 50632_ sixth pivot gear, 50627_ second mounting mullion, 5001 _ second mounting mullion, 5060103 _ first limit chute box, 50623_ first limit chute box, 50616_ second return spring, 50624_ second mounting pillar, 50630_ half-gear, 50631, 50632_ sixth pivot rod, 50632_ sixth mounting mullion, 5002 _ second mounting mullion, 5002 _ slide column, and 5002 _ slide column, 60105_ first electric telescopic plate, 60106_ elastic bending strip, 60107_ second installation vertical rod, 60108_ second limiting sliding column, 60109_ second sliding connection seat plate, 60110_ second electric telescopic plate, 60111_ inner sleeve elastic bending rod and 60112_ outer side elastic sleeve.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings.
Example 1
A trimming treatment method after heat setting of a lithium battery diaphragm is shown in figures 1-10 and adopts processing equipment which comprises an installation base plate 1, a containing box 2, a supporting column 3, an installation frame plate 4, a double overall stretching system 5, a contraction trimming system 6, a trimming collection system 7, a lower heating plate 8, a first lifting electric sliding column 9, an upper heating plate 10, a second lifting electric sliding column 11, a first electric sliding rail 12 and a second electric sliding rail 13; the mounting base plate 1 is connected with the containing box 2; the upper part of the mounting bottom plate 1 is welded with the support pillar 3; the upper part of the support column 3 is welded with the mounting frame plate 4; the upper part of the mounting frame plate 4 is connected with a double overall stretching system 5; the upper part of the mounting frame plate 4 is connected with a contraction trimming system 6; the upper part of the mounting bottom plate 1 is connected with an edge cutting and collecting system 7; the upper part of the mounting frame plate 4 is connected with a lower heating plate 8; the upper part of the mounting frame plate 4 is connected with a first lifting electric sliding column 9; the upper heating plate 10 is in sliding connection with the first lifting electric sliding column 9; the second lifting electric sliding column 11 above the mounting frame plate 4 is connected; the second lifting electric sliding column 11 is connected with the contraction trimming system 6; the first electric slide rail 12 above the mounting frame plate 4 is connected by bolts; the first electric slide rail 12 is in sliding connection with the dual overall stretching system 5; the second electric slide rail 13 above the mounting frame plate 4 is connected by bolts; the second electric slide rail 13 is in sliding connection with the dual overall stretching system 5;
the trimming treatment method after the heat setting of the lithium battery diaphragm comprises the following steps:
the method comprises the following steps: uniformly stretching, namely fixing the lithium battery diaphragm to a double comprehensive stretching system 5, namely controlling the double comprehensive stretching system 5 to perform double uniform stretching on the lithium battery diaphragm;
step two: baking, shrinking and shaping, namely after the lithium battery diaphragm is stretched by the double comprehensive stretching system 5, flatly paving the lithium battery diaphragm on the top surface of the lower heating plate 8, controlling the four first lifting electric sliding columns 9 to drive the upper heating plate 10 to move downwards to be in contact with the lithium battery diaphragm on the top surface of the lower heating plate 8, and then controlling the upper heating plate to start heating and shrinking;
step three: shrinking and trimming, namely fixing the lithium battery diaphragm to a shrinking and trimming system 6 after the lower heating plate 8 and the upper heating plate 10 heat the lithium battery diaphragm, namely controlling the shrinking and trimming system 6 to trim the edge of the lithium battery diaphragm;
step four: trimming and finishing, namely after the lithium battery diaphragm is trimmed by the contraction trimming system 6, fixing and flatly paving the lithium battery diaphragm at the trimming and collecting system 7 again, and then controlling the trimming and collecting system 7 to trim, separate and collect the edges of the lithium battery diaphragm.
The working principle is as follows: when the device of the trimming processing method after the heat setting of the lithium battery diaphragm is used, the device is stably fixed and is externally connected with a power supply, the operation of the device can be controlled by manually opening a controller on a mounting frame plate 4, at the moment, the lithium battery diaphragm is firstly fixed to a double overall stretching system 5, namely, the double overall stretching system 5 is controlled to carry out double uniform stretching on the lithium battery diaphragm, after the double overall stretching system 5 stretches the lithium battery diaphragm, the lithium battery diaphragm is flatly laid on the top surface of a lower heating plate 8, then four first lifting electric sliding columns 9 are controlled to drive an upper heating plate 10 to move downwards to be in contact with the lithium battery diaphragm on the top surface of the lower heating plate 8, then the lithium battery diaphragm is controlled to start to heat and shrink, after the lower heating plate 8 and the upper heating plate 10 heat the lithium battery diaphragm, the lithium battery diaphragm is fixed to a shrinking trimming system 6, then three groups of second lifting electric sliding columns 11 are controlled to drive the shrinking trimming system 6 to descend, the control shrink deburring system 6 receives the limit to the lithium battery diaphragm promptly, receive the limit completion back to the lithium battery diaphragm at shrink deburring system 6, fix the tiling at side cut collecting system 7 once more with the lithium battery diaphragm this moment, then control side cut collecting system 7 with the limit pruning separation and the collection of lithium battery diaphragm, the automatic heat setting after having realized the lithium battery diaphragm shaping is handled, carry out even tensile processing to fashioned lithium battery diaphragm, and automatic heat shrink handles, carry out secondary heat shrink to the edge part that contracts not parallel and level after the heat shrink, make the limit that contracts not parallel and level shrink again and adjust, the battery diaphragm edge part branch after will contracting the completion is pruned at last, obtain the effect of parallel and level lithium battery diaphragm.
The dual overall stretching system 5 comprises a power motor 501, a first rotating shaft rod 502, a first driving wheel 503, a second driving wheel 504, a bearing frame plate 505, a first stretching mechanism 506, a second stretching mechanism 507, a third driving wheel 508, a second rotating shaft rod 509, a first bearing frame column 5010, a first flat gear 5011, a fourth driving wheel 5012, a third rotating shaft rod 5013, a second flat gear 5014, a second bearing frame column 5015, a fourth rotating shaft rod 5016, a third flat gear 5017 and a fourth flat gear 5018; the lower part of the power motor 501 is connected with the mounting frame plate 4 through bolts; the first rotating shaft rod 502 is fixedly connected with an output shaft of the power motor 501; the axis of the first driving wheel 503 is fixedly connected with the first rotating shaft rod 502; the axle center of the second driving wheel 504 is fixedly connected with the first rotating shaft rod 502; the bearing frame plate 505 is rotationally connected with the first rotating shaft rod 502; the lower part of the bearing frame plate 505 is connected with the mounting frame plate 4 through bolts; the lower part of the first stretching mechanism 506 is connected with the first electric slide rail 12 in a sliding way; the lower part of the first stretching mechanism 506 is connected with the second electric slide rail 13 in a sliding way; the lower part of the second stretching mechanism 507 is connected with the first electric slide rail 12 in a sliding way; the lower part of the second stretching mechanism 507 is in sliding connection with a second electric slide rail 13; the outer ring surface of the third driving wheel 508 is in driving connection with the first driving wheel 503 through a belt; the outer surface of the second rotating shaft rod 509 is fixedly connected with the third driving wheel 508; the first bearing bracket post 5010 is rotatably connected to the second pivot rod 509; the lower part of the first bearing frame column 5010 is connected with the mounting frame plate 4 through bolts; the axle center of the first flat gear 5011 is fixedly connected with the second rotating shaft rod 509; the outer annular surface of the fourth transmission wheel 5012 is in transmission connection with the second transmission wheel 504 through a belt; the outer surface of the third rotating shaft 5013 is fixedly connected with a fourth transmission wheel 5012; the axle center of the second flat gear 5014 is fixedly connected with the third rotating shaft 5013; the second bearing bracket post 5015 is rotatably connected with the third spindle post 5013; the lower part of the second bearing bracket post 5015 is connected with the mounting bracket plate 4 through bolts; the fourth rotating shaft 5016 is rotatably connected with the second bearing frame post 5015; the axle center of the third flat gear 5017 is fixedly connected with the fourth rotating shaft 5016; the third flat gear 5017 meshes with the second flat gear 5014; the axis of the fourth flat gear 5018 is fixedly connected to the fourth rotating shaft 5016.
Firstly, controlling a first electric slide rail 12 and a second electric slide rail 13 to simultaneously drive a first stretching mechanism 506 and a second stretching mechanism 507 to approach each other, then respectively fixing two sides of a lithium battery diaphragm between the first stretching mechanism 506 and the second stretching mechanism 507, then controlling to switch on a power supply of a power motor 501, then the power motor 501 drives a first rotating shaft rod 502 to rotate, further the first rotating shaft rod 502 drives a first driving wheel 503 and a second driving wheel 504 to rotate, then the first driving wheel 503 and the second driving wheel 504 respectively drive a third driving wheel 508 and a fourth driving wheel 5012 to rotate, further the third driving wheel 508 drives a second rotating shaft rod 509 to rotate, further the second rotating shaft rod 509 drives a first flat gear 5011 to rotate, further the first flat gear 5011 can drive a second stretching mechanism 507 to operate, and simultaneously the second driving wheel 504 drives the fourth driving wheel 5012 to rotate, then, the fourth transmission wheel 5012 drives the third rotating shaft 5013 to rotate, then the third rotating shaft 5013 drives the second flat gear 5014 to rotate, then the second flat gear 5014 drives the third flat gear 5017 to rotate, then the third flat gear 5017 drives the fourth rotating shaft 5016 to rotate, then the fourth rotating shaft 5016 drives the fourth flat gear 5018 to rotate, then the fourth flat gear 5018 drives the first stretching mechanism 506 to operate, and therefore the first stretching mechanism 506 and the second stretching mechanism 507 respectively stretch the two sides of the lithium battery diaphragm uniformly.
The contraction trimming system 6 comprises a first mounting frame plate 601, a first edge positioning contraction mechanism 602, a second edge positioning contraction mechanism 603, a fixed platen 604, a first fixed strip 605, a second fixed strip 606, a first gradient temperature type heating plate 607 and a second gradient temperature type heating plate 608; the first mounting frame plate 601 is connected with the second lifting electric sliding column 11 in a sliding manner; the first edge positioning and contracting mechanism 602 is connected with the first mounting frame plate 601 through bolts; the second edge positioning and retracting mechanism 603 is connected with the first mounting frame plate 601 through bolts; the lower part of the fixed bedplate 604 is connected with the mounting frame plate 4 through bolts; the first fixed slat 605 is inserted into the fixed platen 604; the second fixed lath 606 is inserted into the fixed bedplate 604; the first gradual temperature change type heating plate 607 is connected with the mounting frame plate 4; the second gradually-heating type heating plate 608 is connected with the mounting frame plate 4.
After the lithium battery diaphragm is stretched by the double comprehensive stretching system 5, the lithium battery diaphragm is flatly laid on the top surface of the lower heating plate 8, then four first lifting electric sliding columns 9 are controlled to drive the upper heating plate 10 to move downwards to be in contact with the lithium battery diaphragm on the top surface of the lower heating plate 8, then the lithium battery diaphragm is controlled to start to heat and shrink, after the lower heating plate 8 and the upper heating plate 10 heat the lithium battery diaphragm, the lithium battery diaphragm is flatly laid on the top surface of the fixed bedplate 604, the lithium battery diaphragm is fixed on the top surface of the fixed bedplate 604 through the first fixed lath 605 and the second fixed lath 606, at the moment, three groups of second lifting electric sliding columns 11 are controlled to drive the first mounting frame plate 601 to descend, and then the first edge positioning shrinking mechanism 602 and the second edge positioning shrinking mechanism 603 are driven to move downwards to be in contact with two sides of the top surface of the lithium battery diaphragm, control first gradual change warm formula and generate heat board 607 and second gradual change warm formula and generate heat board 608 and generate heat simultaneously, first gradual change warm formula generates heat board 607 and second gradual change warm formula and generate heat the temperature of board 608 and reduce to both sides by the middle part gradually by the middle part this moment, and then the shrink of lithium battery diaphragm edge both sides is faster, the shrink at middle part is slower, second border location shrink mechanism 603 pressurizes lithium battery diaphragm edge part middle part position simultaneously, reduce its shrink range, the same operation is carried out to first border location shrink mechanism 602 and second gradual change warm formula and generate heat board 608, make the lithium battery diaphragm edge shrink of once contracting not parallel and level complete, make the edge of lithium battery diaphragm become the parallel and level.
The trimming collection system 7 comprises a mounting portal frame 701, a cross telescopic lifting frame 702, a second mounting frame plate 703, a first electric push rod 704, a first cutter bar 705, a second electric push rod 706, a third electric push rod 707, a second cutter bar 708, a fourth electric push rod 709, a first inclined blanking channel plate 7010, a second inclined blanking channel plate 7011, a collection basket 7012, a linking mounting column 7013 and a flattening plate 7014; the installation portal frame 701 is connected with the cross telescopic lifting frame 702 through bolts; the lower part of the installation portal frame 701 is connected with the installation bottom plate 1 through bolts; the lower part of the cross telescopic lifting frame 702 is connected with a second mounting frame plate 703 through bolts; the first electric push rod 704 is connected with the second mounting frame plate 703; the first cutter bar 705 is connected with a first electric push rod 704; the second electric push rod 706 is connected with the second mounting frame plate 703; the second electric push rod 706 is connected with the first cutter bar 705; the third electric push rod 707 is connected with the second mounting frame plate 703; the second cutter bar 708 is connected with a third electric push rod 707; the fourth electric push rod 709 is connected with the second mounting frame plate 703; the fourth electric push rod 709 is connected with the second cutter bar 708; the first inclined blanking canal plate 7010 is fixedly connected with the installation portal frame 701; the second inclined blanking canal plate 7011 is fixedly connected with the installation portal frame 701; the lower part of the collecting basket 7012 is connected with the mounting bottom plate 1 through bolts; the linking mounting posts 7013 are bolted to the collecting basket 7012; the flat plate 7014 is fixedly connected to the connecting and mounting post 7013.
After the lithium battery diaphragm is processed by the contraction trimming system 6, the lithium battery diaphragm is fixed on the top surface of the flattening plate 7014, then the cross telescopic crane 702 is controlled to extend downwards to drive the second installation frame plate 703 to move downwards, further the second installation frame plate 703 drives the parts connected with the second installation frame plate 703 to move downwards, further the first cutter bar 705 and the second cutter bar 708 move downwards to the top of the lithium battery diaphragm, further the edge part of the lithium battery diaphragm is cut off, then the first electric push rod 704, the second electric push rod 706, the third electric push rod 707 and the fourth electric push rod 709 are controlled to extend simultaneously, further the first cutter bar 705 and the second cutter bar are respectively driven to move towards two sides to shift and separate the cut edge part towards two sides, and the cut edge part falls off from the top edge of the flattening plate 7014, and enters the collecting basket 7012 through the first inclined blanking channel plate 7010 and the second inclined blanking channel plate 7011 to be collected, the separation and collection of the edge portion of the lithium battery separator are completed.
The first stretching mechanism 506 includes a mounting assembly plate 50601, a first mounting side column 50602, a first electric rotating shaft connecting plate 50603, a second electric rotating shaft connecting plate 50604, a first hollow clamping column 50605, a second hollow clamping column 50606, a third electric rotating shaft connecting plate 50607, a fourth electric rotating shaft connecting plate 50608, a second mounting side column 50609, a first mounting upright frame 50610, a first electric roller 50611, a second electric roller 50612, a bearing bedplate 50613, a batten plate 50614, a fifth electric push rod 50615, a sixth electric push rod 50616, a friction tension pull column 50617, a first connecting slider 50618, a first limit sliding groove box 50619, a first return spring 50620, a second connecting slider 50621, a second limit sliding groove box 50622, a second return spring 50623, a fifth rotating shaft 50624, a fifth flat gear 50625, a first torsion spring 50625, a first mounting rack column 50628, a second rotating shaft rack spring 50631, a second rotating shaft mounting rack 50630, a sixth rotating shaft 50629, a second rotating shaft mounting rack 50629, A sixth spur gear 50632 and a second mounting mullion 50633; the lower part of the mounting collection plate 50601 is connected with the first electric slide rail 12 in a sliding way; the lower part of the mounting collection plate 50601 is connected with a second electric slide rail 13 in a sliding way; the lower part of the first mounting side column 50602 is fixedly connected with a mounting gathering plate 50601; the first electric rotating shaft connecting plate 50603 is connected with the first mounting side column 50602; the second electric rotating shaft connecting plate 50604 is connected with the first mounting side column 50602; the first hollow clamping column 50605 is connected with the first electric rotating shaft connecting plate 50603; the second hollow clamping column 50606 is connected with a second electric rotating shaft connecting plate 50604; the third electric rotating shaft connecting plate 50607 is connected with the first hollow clamping column 50605; the fourth electric rotating shaft connecting plate 50608 is connected with the second hollow clamping column 50606; the lower part of the second mounting side column 50609 is fixedly connected with a mounting gathering plate 50601; the second mounting side column 50609 is connected with a third electric rotating shaft connecting plate 50607; the second mounting side column 50609 is connected to a fourth electric rotating shaft connecting plate 50608; the first mounting mullion 50610 is fixedly connected with the second mounting jamb 50609; the first mounting mullion 50610 is fixedly connected with the first mounting jamb 50602; a first motorized roller 50611 is attached to the first mounting mullion 50610; second motorized roller 50612 is coupled to second mounting mullion 50633; the lower part of the bearing bedplate 50613 is fixedly connected with the installation gathering plate 50601; a pressing strip plate 50614 is arranged above the carrying bedplate 50613; the lower part of the fifth electric push rod 50615 is connected with a batten plate 50614; a fifth power pushrod 50615 is coupled to the first mounting mullion 50610; the lower part of the sixth electric push rod 50616 is connected with a batten plate 50614; a sixth power pushrod 50616 connected to the first mounting mullion 50610; a friction stretching column 50617 is arranged above the bearing bedplate 50613; the first connecting slide block 50618 is fixedly connected with the friction stretching column 50617; the first limit chute box 50619 is in sliding connection with the first connecting slide block 50618; the first return spring 50620 is connected with the first limit chute box 50619; the first return spring 50620 is connected to the first connection slider 50618; the second connecting slide block 50621 is fixedly connected with the friction stretching column 50617; the second limit chute box 50622 is in sliding connection with the second connecting slider 50621; the second return spring 50623 is connected with a second limit chute box 50622; the second return spring 50623 is connected to the second connecting slider 50621; the fifth rotating shaft rod 50624 is fixedly connected with a second limiting sliding groove box 50622; the fifth rotating shaft rod 50624 is fixedly connected with a first limit chute box 50619; the axis of the fifth flat gear 50625 is fixedly connected with the fifth rotating shaft 50624; the first torsion spring spindle mount 50626 is connected to the fifth spindle rod 50624; the first mounting frame column 50627 is connected with the first torsion spring pivot mount 50626; the lower part of the first mounting frame column 50627 is fixedly connected with a mounting gathering plate 50601; the second torsion spring rotating shaft seat 50628 is connected with the fifth rotating shaft rod 50624; the second mounting frame column 50629 is connected to the second torsion spring pivot mount 50628; the lower part of the second mounting frame column 50629 is fixedly connected with a mounting gathering plate 50601; the axle center of the half gear 50630 is meshed with a fifth flat gear 50625; the outer surface of the sixth rotating shaft 50631 is fixedly connected with the half gear 50630; the sixth pivot rod 50631 is rotatably coupled to the second mounting bracket post 50629; the sixth pivot rod 50631 is pivotally coupled to the first mounting post 50627; the axis of the sixth spur gear 50632 is fixedly connected to the sixth rotating shaft 50631; the second mounting mullion 50633 is fixedly connected with the second mounting side column 50609; second mounting mullion 50633 is fixedly connected to first mounting jamb 50602.
Firstly, controlling a first electric sliding rail 12 and a second electric sliding rail 13 to simultaneously drive a first stretching mechanism 506 to move towards a second stretching mechanism 507, and when the first electric sliding rail 12 and the second electric sliding rail 13 move to a proper position, controlling a first electric rotating shaft connecting plate 50603, a second electric rotating shaft connecting plate 50604, a third electric rotating shaft connecting plate 50607 and a fourth electric rotating shaft connecting plate 50608 to synchronously rotate, namely driving a first hollow clamping column 50605 and a second hollow clamping column 50606 to respectively rotate upwards and downwards to open, then extending one side of a lithium battery diaphragm into a space between the first hollow clamping column 50605 and the second hollow clamping column 50606, then controlling the first electric rotating shaft connecting plate 50603, the second electric rotating shaft connecting plate 50604, the third electric rotating shaft connecting plate 50607 and the fourth electric rotating shaft connecting plate 50608 to synchronously rotate reversely, further clamping and fixing one side of the lithium battery diaphragm, similarly performing the same operation on the second stretching mechanism 507, and further controlling the first electric sliding rail 12 and the second electric sliding rail 13 to simultaneously drive the first stretching mechanism 506 and the second stretching mechanism 507 simultaneously Moving in the opposite direction to stretch the lithium battery diaphragm, after the primary stretching is finished, controlling the first hollow clamping column 50605 and the second hollow clamping column 50606 to open, controlling the second stretching mechanism 507 to release the other side, releasing the parts of two sides of the lithium battery diaphragm which are not stretched, arranging two air ducts on one side, close to the second electric roller 50612, below the second hollow clamping column 50606, controlling the two air ducts to be communicated and blowing upwards, then controlling the first electric sliding rail 12 and the second electric sliding rail 13 to simultaneously drive the first stretching mechanism 506 and the second stretching mechanism 507 to be close to each other, further controlling the lithium battery diaphragm between the first hollow clamping column 50605 and the second hollow clamping column 50606 to extend to one side of the first electric roller 50611 and the second electric roller 50612 under the action of wind, then entering a gap between the first electric roller 50611 and the second electric roller 50612, and then controlling the first electric roller 50611 and the second electric roller 50612 to rotate, then the first electric roller 50611 and the second electric roller 50612 transmit the lithium battery diaphragm to the direction close to the friction stretching column 50617, the movement is stopped when the first stretching mechanism 506 moves to the position where the sixth flat gear 50632 is engaged with the fourth flat gear 5018, the part of the lithium battery diaphragm which is not stretched moves to the position below the friction stretching column 50617, the boundary of the stretched part and the unstretched part is positioned below the pressing strip 50614, then the fifth electric push rod 50615 and the sixth electric push rod 50616 are controlled to extend downwards, namely the fifth electric push rod 50615 and the sixth electric push rod 50616 drive the pressing strip 50614 to move downwards to press the stretched part and the unstretched part of the lithium battery diaphragm on the top surface of the bearing 50613, at the moment, the power of the motor 501 is controlled to be switched on, the fourth flat gear 5018 drives the sixth flat gear 50632 to rotate through a series of transmission, then the sixth flat gear 50632 drives the sixth rotating shaft 50631 to rotate, then the sixth rotating shaft 50631 drives the half gear 50630 to rotate, the half gear 50630 drives the fifth flat gear 50625 to rotate, then the fifth flat gear 50625 drives the fifth rotating shaft 50624 to rotate, and then the fifth rotating shaft 50624 drives the second limit chute box 50622 and the first limit chute box 50619 to rotate downwards, and then the first limit chute box 50619 and the second limit chute box 50622 respectively drive the friction tension column 50617 to rotate downwards through the first connecting slider 50618 and the second connecting slider 50621, i.e. the friction tension column 50617 first contacts the lithium battery diaphragm surface at the top of the bearing bedplate 50613, then the friction tension column 50617 first contacts the top surface of the bearing bedplate 50613 along with the continuous movement of the first limit chute box 50619 and the second limit chute box 50622, and the lowest point of the friction tension column 50617 is the inner side surface of the bearing bedplate 50613, and then the friction tension column 50617 starts to drive the first connecting slider 50618 and the second connecting slider 50621 and the second limit chute box 5082 respectively slide in the first limit chute 50619 and the second limit chute box 50621, meanwhile, the first return spring 50620 and the second return spring 50623 are compressed by the movement of the first connecting slide block 50618 and the second connecting slide block 50621 respectively, so that the friction stretching pull column 50617 can be kept in a tightly attached state all the time in the movement process of the top surface of the bearing bedplate 50613, the friction stretching pull column 50617 stretches the unstretched part of the lithium battery diaphragm for the second time through friction, and the second stretching mechanism 507 performs the same operation, so that the whole uniform stretching of the lithium battery diaphragm is completed.
The first edge positioning and contracting mechanism 602 comprises a mounting cross bar 60101, a first mounting vertical bar 60102, a first limiting sliding column 60103, a first sliding connection seat plate 60104, a first electric expansion plate 60105, an elastic bending strip 60106, a second mounting vertical bar 60107, a second limiting sliding column 60108, a second sliding connection seat plate 60109, a second electric expansion plate 60110, an inner sleeve elastic bending rod 60111 and an outer side elastic sleeve 60112; the upper part of the mounting cross rod 60101 is connected with the first mounting frame plate 601 through bolts; the first vertical mounting rod 60102 is fixedly connected with the cross mounting rod 60101; the first limiting sliding column 60103 is in bolted connection with a first vertical mounting rod 60102; the first sliding connection seat plate 60104 is in sliding connection with the first limit sliding column 60103; the first electric expansion plate 60105 is connected with a first sliding connection seat plate 60104; the elastic bending strip 60106 is connected with the first electric expansion plate 60105; the second mounting vertical rod 60107 is fixedly connected with the mounting cross rod 60101; the second limiting sliding column 60108 is in bolted connection with a second mounting vertical rod 60107; the second sliding connection base plate 60109 is in sliding connection with a second limiting sliding column 60108; the second electric expansion plate 60110 is connected with a second sliding connection seat plate 60109; the second electric expansion plate 60110 is connected with the elastic bending strip 60106; the inner sleeve elastic bending rod 60111 is sleeved with a second mounting vertical rod 60107; the inner sleeve elastic bending rod 60111 is sleeved with the first mounting vertical rod 60102; the inner side of the outer elastic sleeve 60112 is sleeved with an inner elastic bending rod 60111.
Controlling the three groups of second lifting electric sliding columns 11 to drive the first mounting frame plate 601 to descend, further controlling the first mounting frame plate 601 to drive the first edge positioning contraction mechanism 602 and the second edge positioning contraction mechanism 603 to move downwards to contact with two sides of the top surface of the battery diaphragm, at the moment, controlling the first electric expansion plate 60105 and the second electric expansion plate 60110 to contract synchronously, further controlling the first electric expansion plate 60105 and the second electric expansion plate 60110 to drive two sides of the elastic bending strip 60106 to move upwards respectively, further controlling the middle part of the elastic bending strip 60106 to bend downwards, simultaneously controlling the linear distance between two ends of the elastic bending strip 60106 to be shortened, then respectively driving the first sliding connection seat plate 60104 and the second sliding connection seat plate 60110 to respectively slide on the outer surfaces of the first limiting sliding column 60103 and the second limiting sliding column 60108 towards each other so as to keep the bending stress balance, further after the elastic strip 60106 bends downwards, the part of the elastic bending strip 60106 protruding downwards in the middle also pushes the middle parts of the inner sleeve elastic bending rod 60111 and the outer elastic sleeve 60112 downwards, that is, the middle parts of the inner sleeve elastic bending rod 60111 and the outer elastic sleeve 60112 also bend downwards, and then the middle part of the edge part of the lithium battery diaphragm is pressed by the lower part of the outer elastic sleeve 60112, the middle part of the edge part of the lithium battery diaphragm is stressed greatly, the stress near the two sides is reduced gradually, meanwhile, the temperature of the first gradient temperature heating plate 607 and the second gradient temperature heating plate 608 is reduced gradually from the middle part to the two sides, and then the contraction of the two sides of the edge part of the lithium battery diaphragm is faster, the contraction of the middle part is slower, and meanwhile, the middle part of the edge part of the lithium battery diaphragm is pressurized by the outer elastic sleeve 60112, the contraction range is reduced, and the second edge positioning and contracting mechanism 603 performs the same operation.
The fixed platen 604 is provided with a cavity therein and is provided with a water inlet nozzle and a water outlet nozzle.
The water inlet pipe can be connected with a cold water inlet pipe and a cold water outlet pipe respectively, so that the cavity inside the fixed bedplate 604 is filled with cold water, and the position of the middle area without heating is cooled.
The side wall of the collecting basket 7012 is provided with atomizing water spray pipes.
So as to spray water mist into the collecting basket 7012 through the atomizing spray pipe, so that the lithium battery diaphragm is not bonded together after being wetted, and is convenient for collection.
Rubber pads are provided on the bottom of the first hollow clamping column 50605 and the top of the second hollow clamping column 50606.
So as to increase the frictional force of the bottom of the first hollow clamping column 50605 and the second hollow clamping column 50606 in contact with the lithium battery separator.
The embodiments described above are provided to enable persons skilled in the art to make or use the invention and that modifications or variations can be made to the embodiments described above by persons skilled in the art without departing from the inventive concept of the present invention, so that the scope of protection of the present invention is not limited by the embodiments described above but should be accorded the widest scope consistent with the innovative features set forth in the claims.

Claims (9)

1. A trimming treatment method after heat setting of a lithium battery diaphragm adopts the following processing equipment, and the processing equipment comprises an installation base plate (1), a containing box (2) and a supporting column (3), and is characterized by further comprising an installation frame plate (4), a double comprehensive stretching system (5), a contraction trimming system (6), a trimming collection system (7), a lower heating plate (8), a first lifting electric sliding column (9), an upper heating plate (10), a second lifting electric sliding column (11), a first electric sliding rail (12) and a second electric sliding rail (13); the mounting bottom plate (1) is connected with the containing box (2); the upper part of the mounting bottom plate (1) is welded with the supporting column (3); the upper part of the supporting column (3) is welded with the mounting frame plate (4); the upper part of the mounting frame plate (4) is connected with a double overall stretching system (5); the upper part of the mounting frame plate (4) is connected with a contraction trimming system (6); the upper part of the mounting bottom plate (1) is connected with an edge cutting and collecting system (7); the upper part of the mounting frame plate (4) is connected with a lower heating plate (8); the upper part of the mounting frame plate (4) is connected with a first lifting electric sliding column (9); the upper heating plate (10) is in sliding connection with the first lifting electric sliding column (9); a second lifting electric sliding column (11) above the mounting frame plate (4) is connected; the second lifting electric sliding column (11) is connected with the contraction trimming system (6); a first electric slide rail (12) above the mounting frame plate (4) is connected by a bolt; the first electric sliding rail (12) is in sliding connection with the double overall stretching system (5); a second electric slide rail (13) above the mounting frame plate (4) is connected with a bolt; the second electric slide rail (13) is in sliding connection with the double overall stretching system (5);
the trimming treatment method after the heat setting of the lithium battery diaphragm comprises the following steps:
the method comprises the following steps: uniformly stretching, namely fixing the lithium battery diaphragm to a double comprehensive stretching system (5), namely controlling the double comprehensive stretching system (5) to perform double uniform stretching on the lithium battery diaphragm;
step two: baking, shrinking and shaping, namely after the lithium battery diaphragm is stretched by the double comprehensive stretching system (5), flatly paving the lithium battery diaphragm on the top surface of the lower heating plate (8), controlling the four first lifting electric sliding columns (9) to drive the upper heating plate (10) to move downwards to be in contact with the lithium battery diaphragm on the top surface of the lower heating plate (8), and then controlling the upper heating plate to start to heat and shrink;
step three: shrinking and trimming, namely fixing the lithium battery diaphragm to a shrinking and trimming system (6) after the lithium battery diaphragm is heated by the lower heating plate (8) and the upper heating plate (10), namely controlling the shrinking and trimming system (6) to trim the lithium battery diaphragm;
step four: trimming, namely, after the lithium battery diaphragm is trimmed by the contraction trimming system (6), the lithium battery diaphragm is fixedly tiled at the trimming collecting system (7) again at the moment, and then the trimming collecting system (7) is controlled to trim, separate and collect the edges of the lithium battery diaphragm.
2. The lithium battery diaphragm heat setting post trimming processing method as claimed in claim 1, wherein the double overall stretching system (5) comprises a power motor (501), a first rotating shaft rod (502), a first driving wheel (503), a second driving wheel (504), a bearing frame plate (505), a first stretching mechanism (506), a second stretching mechanism (507), a third driving wheel (508), a second rotating shaft rod (509), a first bearing frame column (5010), a first flat gear (5011), a fourth driving wheel (5012), a third rotating shaft rod (5013), a second flat gear (5014), a second bearing frame column (5015), a fourth rotating shaft rod (5016), a third flat gear (5017) and a fourth flat gear (5018); the lower part of the power motor (501) is connected with the mounting frame plate (4) through bolts; the first rotating shaft rod (502) is fixedly connected with an output shaft of the power motor (501); the axle center of the first driving wheel (503) is fixedly connected with the first rotating shaft rod (502); the axle center of the second driving wheel (504) is fixedly connected with the first rotating shaft rod (502); the bearing frame plate (505) is in rotary connection with the first rotating shaft rod (502); the lower part of the bearing frame plate (505) is connected with the mounting frame plate (4) through bolts; the lower part of the first stretching mechanism (506) is in sliding connection with a first electric slide rail (12); the lower part of the first stretching mechanism (506) is in sliding connection with a second electric slide rail (13); the lower part of the second stretching mechanism (507) is in sliding connection with the first electric slide rail (12); the lower part of the second stretching mechanism (507) is in sliding connection with a second electric slide rail (13); the outer ring surface of the third driving wheel (508) is in transmission connection with the first driving wheel (503) through a belt; the outer surface of the second rotating shaft rod (509) is fixedly connected with a third driving wheel (508); the first bearing frame column (5010) is in rotary connection with the second rotating shaft rod (509); the lower part of the first bearing frame column (5010) is connected with the mounting frame plate (4) through bolts; the axle center of the first flat gear (5011) is fixedly connected with the second rotating shaft rod (509); the outer ring surface of the fourth transmission wheel (5012) is in transmission connection with the second transmission wheel (504) through a belt; the outer surface of the third rotating shaft rod (5013) is fixedly connected with a fourth transmission wheel (5012); the axle center of the second flat gear (5014) is fixedly connected with the third rotating shaft lever (5013); the second bearing frame column (5015) is in rotary connection with the third rotating shaft rod (5013); the lower part of the second bearing bracket column (5015) is connected with the mounting bracket plate (4) through bolts; the fourth rotating shaft rod (5016) is in rotating connection with the second bearing frame column (5015); the axle center of the third flat gear (5017) is fixedly connected with the fourth rotating shaft lever (5016); the third flat gear (5017) is meshed with the second flat gear (5014); the axle center of the fourth flat gear (5018) is fixedly connected with the fourth rotating shaft lever (5016).
3. The lithium battery diaphragm heat-setting post-trimming processing method as claimed in claim 2, wherein the shrinking trimming system (6) comprises a first mounting frame plate (601), a first edge positioning shrinking mechanism (602), a second edge positioning shrinking mechanism (603), a fixed platen (604), a first fixed strip plate (605), a second fixed strip plate (606), a first gradually-changing-temperature heating plate (607) and a second gradually-changing-temperature heating plate (608); the first mounting frame plate (601) is in sliding connection with the second lifting electric sliding column (11); the first edge positioning and contracting mechanism (602) is in bolt connection with the first mounting frame plate (601); the second edge positioning and contracting mechanism (603) is in bolt connection with the first mounting frame plate (601); the lower part of the fixed bedplate (604) is connected with the mounting frame plate (4) through bolts; the first fixed slat (605) is inserted with the fixed bedplate (604); the second fixed lath (606) is spliced with the fixed bedplate (604); the first gradual temperature change type heating plate (607) is connected with the mounting frame plate (4); the second gradual temperature change type heating plate (608) is connected with the mounting frame plate (4).
4. The lithium battery diaphragm heat setting post-trimming processing method according to claim 3, wherein the trimming collection system (7) comprises an installation portal frame (701), a cross telescopic lifting frame (702), a second installation frame plate (703), a first electric push rod (704), a first cutter bar (705), a second electric push rod (706), a third electric push rod (707), a second cutter bar (708), a fourth electric push rod (709), a first inclined blanking channel plate (7010), a second inclined blanking channel plate (7011), a collection basket (7012), a connection installation column (7013) and a flattening plate (7014); a portal frame (701) is installed to be in bolted connection with a cross telescopic lifting frame (702); the lower part of the installation portal frame (701) is connected with the installation bottom plate (1) through bolts; the lower part of the cross telescopic lifting frame (702) is connected with a second mounting frame plate (703) through bolts; the first electric push rod (704) is connected with the second installation frame plate (703); the first cutter bar (705) is connected with a first electric push rod (704); the second electric push rod (706) is connected with the second installation frame plate (703); the second electric push rod (706) is connected with the first cutter bar (705); the third electric push rod (707) is connected with the second mounting frame plate (703); the second cutter bar (708) is connected with a third electric push rod (707); the fourth electric push rod (709) is connected with the second mounting frame plate (703); the fourth electric push rod (709) is connected with the second cutter bar (708); the first inclined blanking canal plate (7010) is fixedly connected with a mounting portal frame (701); the second inclined blanking canal plate (7011) is fixedly connected with the installation portal frame (701); the lower part of the collecting basket (7012) is connected with the mounting bottom plate (1) through bolts; the connecting mounting column (7013) is connected with the collecting basket (7012) through a bolt; the display plate (7014) is fixedly connected with the connecting mounting column (7013).
5. The method for trimming the lithium battery diaphragm after heat setting as claimed in claim 4, wherein the first stretching mechanism (506) comprises a mounting assembly plate (50601), a first mounting side column (50602), a first electric rotating shaft connecting plate (50603), a second electric rotating shaft connecting plate (50604), a first hollow clamping column (50605), a second hollow clamping column (50606), a third electric rotating shaft connecting plate (50607), a fourth electric rotating shaft connecting plate (50608), a second mounting side column (50609), a first mounting vertical frame (50610), a first electric roller (50611), a second electric roller (50612), a bearing platen (50613), a pressing strip plate (50614), a fifth electric push rod (50615), a sixth electric push rod (50616), a friction stretching column (50617), a first connecting slider (50618), a first limiting sliding groove box (50619), a first return spring (50620), a second connecting slider (50621), a second limiting groove box (50622), A second return spring (50623), a fifth rotating shaft rod (50624), a fifth spur gear (50625), a first torsion spring rotating shaft seat (50626), a first mounting frame column (50627), a second torsion spring rotating shaft seat (50628), a second mounting frame column (50629), a half gear (50630), a sixth rotating shaft rod (50631), a sixth spur gear (50632) and a second mounting mullion (50633); the lower part of the mounting assembly plate (50601) is in sliding connection with a first electric slide rail (12); the lower part of the mounting assembly plate (50601) is connected with a second electric slide rail (13) in a sliding way; the lower part of the first mounting side column (50602) is fixedly connected with a mounting gathering plate (50601); the first electric rotating shaft connecting plate (50603) is connected with the first mounting side column (50602); the second electric rotating shaft connecting plate (50604) is connected with the first mounting side column (50602); the first hollow clamping column (50605) is connected with the first electric rotating shaft connecting plate (50603); the second hollow clamping column (50606) is connected with the second electric rotating shaft connecting plate (50604); the third electric rotating shaft connecting plate (50607) is connected with the first hollow clamping column (50605); the fourth electric rotating shaft connecting plate (50608) is connected with the second hollow clamping column (50606); the lower part of the second mounting side column (50609) is fixedly connected with a mounting gathering plate (50601); the second mounting side column (50609) is connected with a third electric rotating shaft connecting plate (50607); the second mounting side column (50609) is connected with a fourth electric rotating shaft connecting plate (50608); the first mounting mullion (50610) is fixedly connected with the second mounting jamb (50609); the first mounting mullion (50610) is fixedly connected with the first mounting jamb (50602); a first motorized roller (50611) is coupled to the first mounting mullion (50610); a second motorized roller (50612) is coupled to the second mounting mullion (50633); the lower part of the bearing bedplate (50613) is fixedly connected with a mounting gathering plate (50601); a pressure strip plate (50614) is arranged above the bearing bedplate (50613); the lower part of the fifth electric push rod (50615) is connected with a batten plate (50614); a fifth electric push rod (50615) is connected with the first mounting mullion (50610); the lower part of the sixth electric push rod (50616) is connected with a batten plate (50614); a sixth electric push rod (50616) is connected with the first mounting mullion (50610); a friction stretching column (50617) is arranged above the bearing bedplate (50613); the first connecting slide block (50618) is fixedly connected with the friction stretching column (50617); the first limit sliding groove box (50619) is in sliding connection with the first connecting sliding block (50618); the first return spring (50620) is connected with the first limit chute box (50619); the first return spring (50620) is connected with the first connecting slide block (50618); the second connecting slide block (50621) is fixedly connected with the friction stretching column (50617); the second limiting sliding groove box (50622) is in sliding connection with the second connecting sliding block (50621); the second return spring (50623) is connected with the second limiting chute box (50622); the second return spring (50623) is connected with the second connecting slide block (50621); the fifth rotating shaft rod (50624) is fixedly connected with a second limiting sliding groove box (50622); the fifth rotating shaft rod (50624) is fixedly connected with the first limiting sliding groove box (50619); the axle center of the fifth flat gear (50625) is fixedly connected with a fifth rotating shaft rod (50624); the first torsion spring rotating shaft seat (50626) is connected with the fifth rotating shaft rod (50624); the first mounting frame column (50627) is connected with the first torsion spring rotating shaft seat (50626); the lower part of the first mounting frame column (50627) is fixedly connected with a mounting gathering plate (50601); the second torsion spring rotating shaft seat (50628) is connected with the fifth rotating shaft rod (50624); the second mounting frame column (50629) is connected with the second torsion spring rotating shaft seat (50628); the lower part of the second mounting frame column (50629) is fixedly connected with a mounting aggregation plate (50601); the axle center of the half gear (50630) is meshed with a fifth flat gear (50625); the outer surface of the sixth rotating shaft rod (50631) is fixedly connected with the half gear (50630); the sixth rotating shaft rod (50631) is rotatably connected with the second mounting frame column (50629); the sixth rotating shaft rod (50631) is rotatably connected with the first mounting frame column (50627); the axis of the sixth flat gear (50632) is fixedly connected with the sixth rotating shaft rod (50631); the second mounting vertical frame (50633) is fixedly connected with the second mounting side column (50609); the second mounting mullion (50633) is fixedly connected with the first mounting jamb (50602).
6. The lithium battery diaphragm heat setting post-trimming processing method of claim 5, wherein the first edge positioning and shrinking mechanism (602) comprises a mounting cross bar (60101), a first mounting vertical bar (60102), a first limiting sliding column (60103), a first sliding connection seat plate (60104), a first electric expansion plate (60105), an elastic bending strip (60106), a second mounting vertical bar (60107), a second limiting sliding column (60108), a second sliding connection seat plate (60109), a second electric expansion plate (60110), an inner sleeve elastic bending bar (60111) and an outer elastic sleeve (60112); the upper part of the mounting cross rod (60101) is connected with a first mounting frame plate (601) through bolts; the first vertical mounting rod (60102) is fixedly connected with the transverse mounting rod (60101); the first limiting sliding column (60103) is in bolted connection with the first mounting vertical rod (60102); the first sliding connection seat plate (60104) is in sliding connection with the first limiting sliding column (60103); the first electric expansion plate (60105) is connected with the first sliding connection seat plate (60104); the elastic bending strip (60106) is connected with the first electric expansion plate (60105); the second mounting vertical rod (60107) is fixedly connected with the mounting cross rod (60101); the second limiting sliding column (60108) is in bolted connection with the second mounting vertical rod (60107); the second sliding connection seat plate (60109) is in sliding connection with the second limiting sliding column (60108); the second electric expansion plate (60110) is connected with the second sliding connection seat plate (60109); the second electric expansion plate (60110) is connected with the elastic bending strip (60106); the inner sleeve elastic bending rod (60111) is sleeved with the second mounting vertical rod (60107); the inner sleeve elastic bending rod (60111) is sleeved with the first mounting vertical rod (60102); the inner side of the outer elastic sleeve (60112) is sleeved with an inner elastic bending rod (60111).
7. The method for trimming the lithium battery diaphragm after heat setting as claimed in claim 3, wherein the fixed platen (604) is provided with a cavity therein and is provided with a water inlet pipe orifice and a water outlet pipe orifice.
8. The method for trimming the lithium battery diaphragm after heat setting as claimed in claim 4, wherein the side wall of the collecting basket (7012) is provided with an atomized water spray pipe.
9. The method for trimming the lithium battery diaphragm after heat setting as claimed in claim 5, wherein the bottom of the first hollow clamping column (50605) and the top of the second hollow clamping column (50606) are both provided with rubber pads.
CN202110568661.4A 2021-05-25 2021-05-25 Trimming treatment method for heat-set lithium battery diaphragm Active CN113471623B (en)

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CN114102335A (en) * 2021-12-09 2022-03-01 江西远大保险设备实业集团有限公司 Outward-opening side plate trimming device capable of automatically positioning
CN115189095A (en) * 2022-07-08 2022-10-14 界首市天鸿新材料股份有限公司 Three-layer co-extrusion diaphragm transverse stretching system for high-power vehicle power lithium battery
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