CN111304699A - Foil breakage preventing device, 9-20 mu m copper foil post-treatment foil breakage preventing method and post-treatment machine - Google Patents

Foil breakage preventing device, 9-20 mu m copper foil post-treatment foil breakage preventing method and post-treatment machine Download PDF

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CN111304699A
CN111304699A CN202010192376.2A CN202010192376A CN111304699A CN 111304699 A CN111304699 A CN 111304699A CN 202010192376 A CN202010192376 A CN 202010192376A CN 111304699 A CN111304699 A CN 111304699A
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copper foil
adaptation
post
thickness
square meter
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CN111304699B (en
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曾尚南
廖平元
刘少华
杨剑文
杨雨平
吴国宏
凌超军
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Guangdong Fine Yuan Science Technology Co Ltd
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    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D1/00—Electroforming
    • C25D1/04—Wires; Strips; Foils
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
    • G01B21/02—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness
    • G01B21/08—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness for measuring thickness
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
    • G01B21/22—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring angles or tapers; for testing the alignment of axes
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B19/00—Programme-control systems
    • G05B19/02—Programme-control systems electric
    • G05B19/18—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form
    • G05B19/416—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by control of velocity, acceleration or deceleration
    • G05B19/4163—Adaptive control of feed or cutting velocity

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  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Automation & Control Theory (AREA)
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  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
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  • Metallurgy (AREA)
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Abstract

The invention discloses a foil breakage preventing device, a foil breakage preventing method for post-processing of a 9-20 mu m copper foil and a post-processor; belongs to the technical field of electrolytic copper foil of new energy automobile power batteries; the technical key points comprise that: the thickness gauge assembly at least comprises 4 thickness gauges, wherein at least 2 thickness gauges are arranged on the left side of the copper foil, and at least 2 thickness gauges are arranged on the right side of the copper foil; the two thickness gauges distributed on one side of the copper foil are used for measuring the thickness of the edge part and the copper foil in the area adjacent to the edge part; the thickness gauge assembly and the rotation angle sensor are connected with the control system; the control system and the post-processing driving motor assembly; the thickness gauge assembly is arranged between the unwinding roller and the first processing groove. By adopting the foil breakage preventing device, the 9-20 mu m copper foil post-processing foil breakage preventing method and the post-processing machine, the production efficiency can be improved to the maximum extent on the premise of ensuring the safety of the 9-20 mu m copper foil post-processing.

Description

Foil breakage preventing device, 9-20 mu m copper foil post-treatment foil breakage preventing method and post-treatment machine
Technical Field
The invention relates to the field of electrolytic copper foil for new energy automobile power batteries, in particular to a foil breakage preventing device, a 9-20 mu m copper foil post-treatment foil breakage preventing method and a post-treatment machine.
Background
The applicant previously filed '2020101128474 a post-processing single machine for preventing foil breakage, a production process, a control method and a control system' and provides a control method of a foil breakage preventing device of a post-processing machine, which has a characteristic as shown in fig. 1: 7 abnormal sections (the distance between the sections is less than L) exist in a certain area, and after the 3 rd section, the running speed of the copper foil is reduced to V3No matter V of the following 4 abnormal sectionsAdaptation toThe copper foil always follows V3I.e. with a "memory effect".
From the above, it can be known that: the solution proposed in the prior application "post-processing monoblock machine for foil breakage prevention, production process, control method, control system" is biased towards conservation, and one view is that: in spite of the 4 th to 7 th abnormal cross section, at the running speed V1、V2It is also possible, however, that in the treatment tank the operating speed is from V3Accelerate to V1、V2There will be a short acceleration process which is not good for the safety of the copper foil.
Another view is that: this reduces the speed of the post-processor, and the brief acceleration does not cause foil breakage on the abnormal section.
Experience tests show that the scheme of the embodiment 1 is suitable for copper foils with the thickness of less than 9 μm, and particularly, the scheme of the embodiment 1 is safe to be adopted when the copper foils with the thickness of less than 6 μm are processed.
For copper foil above 9 microns, the short acceleration does not result in foil breakage.
However, how to combine the production efficiency and safety (i.e. preventing foil breakage) for the lithium electrolytic copper foil with the thickness of 9 to 20 microns is a problem to be solved.
Disclosure of Invention
The present invention is directed to provide a foil breakage preventing device that overcomes the above-mentioned drawbacks of the prior art.
The invention aims to provide a foil breakage preventing method for post-treatment of a copper foil with the thickness of 9-20 mu m, aiming at the defects of the prior art.
The present invention is directed to overcoming the above-mentioned deficiencies of the prior art and providing an aftertreatment machine.
An electrolytic copper foil post-processor (cell machine) breakage-preventing processing device provided on an electrolytic copper foil post-processor, comprising: the thickness gauge comprises a thickness gauge component, a rotation angle sensor and a control system;
the thickness gauge assembly at least comprises 4 thickness gauges, wherein at least 2 thickness gauges are arranged on the left side of the copper foil, and at least 2 thickness gauges are arranged on the right side of the copper foil;
the at least 4 thickness gauges are arranged on the same cross section;
the two thickness gauges distributed on one side of the copper foil are used for measuring the thickness of the edge part and the copper foil in the area adjacent to the edge part;
the thickness gauge assembly and the rotation angle sensor are connected with the control system;
the control system and the post-processing driving motor assembly;
the thickness gauge assembly is arranged between the unwinding roller and the first processing groove.
Further comprising: and a rotation angle sensor is arranged on any guide roller of the post-processing machine and is used for measuring the rotation angle of the guide roller in real time.
Further, the control system includes: the device comprises a storage module, a calculation module, a comparison module and an execution module;
the data measured by the thickness gauge assembly and the rotation angle sensor are stored in a storage module;
the storage module is bidirectionally connected with the calculation module, namely the calculation module reads data in the storage module and calculates the target speed V of the copper foil at the current moment of the obtained datatWriting into a storage module;
wherein, the comparison module is used for comparing the target speed V of the copper foil at the current momenttAnd the target speed V of the copper foil at the previous momentt-1；
The execution module is used for controlling the running speed of the post-processing driving motor assembly.
Further, the distance between the thickness gauge at the edge of the most edge part and the edge of the adjacent copper foil is 10-40 mm, and the distance between the thickness gauge at the edge of the most edge part and the thickness gauge at the secondary edge part is 20-40 mm.
A method for preventing foil breakage after electrolytic copper foil with the thickness of 9-20 mu m, which adopts the foil breakage preventing device,
which comprises the following steps:
s1, any time t, data of thickness gauge assembly and measured value delta of rotation angle sensortStoring the data into a storage module in the control system;
forming a data sequence in the memory module: t, VAdaptation to t、δt、Vt(ii) a In the storage module, the following are stored in advance: 0. v0、0、V0；
S2, calculating V by the calculating moduleAdaptation to t(the current section copper foil adaptive speed), and the data is stored in a storage module:
s2-1, calculating the maximum difference of the left side areal density and the right side areal density:
the maximum difference of the left-side areal density is (maximum value measured by a thickness meter arranged on the left side of the copper foil-minimum value measured by a thickness meter arranged on the left side of the copper foil) × ρ;
the maximum difference of the right side areal density is (the maximum value of the thickness meter arranged on the right side of the copper foil-the minimum value measured by the thickness meter arranged on the right side of the copper foil) × ρ;
wherein ρ represents the density of the copper foil;
s2-2, calculating VLeft adaptation t：
When: when the surface density of the left side is not less than 1 g/square meter, V is the maximum difference valueLeft adaptation t＝V0；
When: v is more than 1 g/square meter when the maximum difference of the density of the square meter is more than or equal to 1.5 g/square meter and the square meter is more than or equal to the left side faceLeft adaptation t＝V1；
When the maximum difference between the density of the square meter and the square meter is more than or equal to 2 grams per square meter and the surface density of the left side is more than 1.5 grams per square meter, V isLeft adaptation t＝V2；
When the maximum difference value of the left side surface density is more than 2 g/square meter, VLeft adaptation t＝V3；
S2-3, calculating VRight adaptation t：
When: when the surface density of the right side is not less than 1 g/square meter, V is the maximum difference valueRight adaptation t＝V0；
When: v is more than 1 g/square meter when the maximum difference of the density of the square meter is more than or equal to 1.5 g/square meter and the square meter is more than or equal to the right side surfaceRight adaptation t＝V1；
When the maximum difference between the density of the square meter and the square meter is more than or equal to 2 grams per square meter and the surface density of the right side is more than 1.5 grams per square meter, VRight adaptation t＝V2；
When the maximum difference value of the surface density of the right side is more than 2 g/square meter, VRight adaptation t＝V3
S2-4,VAdaptation to t＝min(VLeft adaptation t，VRight adaptation t) (i.e. V)Adaptation to tIs a VLeft adaptation t，VRight adaptation tThe smaller of the two);
S2-5,Vadaptation to tStoring the data into a storage module;
s3, the calculation module reads the data in the storage module and calculates the target running speed V of the copper foil at the time tt：
S3-1, determining time: t-x;
when deltat≤LSecurity/R,t-x＝0；
When deltat>LSecuritySearch for delta in delta sequencet-x(i.e., angle at time t-x) reading data in the memory module, and comparing δtThe data sequence is as follows: deltat-1、δt-2、δt-3. . . . . Until the following equation is satisfied:
(δt-δt-x)≥LsecurityR (i.e., the copper foil has traveled at least L from time t-x to time tSecurity)；
That is, first, it is judged
δt-δt-1(δt-1Representing the angle of the rotation angle sensor at a time immediately before time t) and LSecurityThe relationship of/R, if satisfied: deltat-δt-1≥LSecurityIf the calculation is completed, the calculation is finished, and t-1 is the t-x moment to be searched;
if the following conditions are met: deltat-δt-1<LSecurityR, then repeat, compare: deltat-δt-2And LSecurityThe relationship of/R is such that,
when deltat-δt-2≥LSecurityIf the calculation is completed, the calculation is finished, and t-2 is the t-x moment to be searched;
when deltat-δt-2<LSecurityR, then repeat, compare: deltat-δt-3And LSecurityThe relationship of/R;
circularly calculating until t-x is found;
by means of the data sequence "t, VAdaptation to t、δt”，Further determining t-x;
wherein R represents the radius of the guide roll for which the rotation angle is monitored (this data is stored in the storage module in advance);
s3-2, V from time t-x to time tAdaptation toFinding the minimum value, VtEqual to the minimum value mentioned above, and VtStoring the data into a storage module;
s4, the comparison module reads V from the storage moduletAnd Vt-1And judging V by comparisontAnd Vt-1Judging whether a signal needs to be sent to adjust the running speed of the copper foil:
when V ist＝Vt-1The execution module does not send out a signal;
when V ist≠Vt-1The execution module sends a signal to the post-processing driving motor assembly to adjust the linear velocity of the copper foil to be Vt。
Further, LSecurityAnd when the length of the copper foil is not less than the length of the copper foil from the thickness gauge to the first guide roller behind the last processing groove, namely the problem of uneven thickness of the copper foil is detected, the speed reduction processing is carried out in the area.
Further, V1＝0.8V0-0.9V0，V2＝0.65V0-0.75V0，V3＝0.5V0-0.6V0。
The post-processor for the electrolytic copper foil is characterized in that the post-processing of the electrolytic copper foil is carried out by adopting the method for preventing the foil from being broken
The beneficial effect of this application lies in:
the application provides another foil breakage prevention processing method of the post-processor, which is suitable for 9-20 micron lithium-ion electro-copper foils (the copper foils below 9 microns are not safe enough), and compared with the foil breakage prevention processing control method mentioned in the background art, the method can avoid the memory effect generated at the previous abnormal point, so that the post-processing speed is improved to the maximum effect on the premise of ensuring safety (preventing foil breakage).
Drawings
The invention will be further described in detail with reference to examples of embodiments shown in the drawings to which, however, the invention is not restricted.
Fig. 1 is an example schematic of the background art.
FIG. 2 is a schematic view of an example of embodiment 1.
Fig. 3 is a schematic view of the thickness gauge assembly at the position where the copper foil is disposed.
The reference numerals are explained below:
thickness gauge subassembly 1, copper foil 2.
Detailed Description
Embodiment 1, an electrolytic copper foil post-processor (monoblock machine) breakage-preventing processing apparatus provided on an electrolytic copper foil post-processor, the breakage-preventing processing apparatus comprising: the thickness gauge assembly 1 and the control system;
the thickness gauge assembly at least comprises 4 thickness gauges, wherein the 4 thickness gauges are respectively arranged on two sides of a copper foil banner in pairs, and the 4 thickness gauges are vertical to the advancing direction of the copper foil (namely the 4 thickness gauges are arranged on the copper foil banner, namely 1 section); the two thickness gauges distributed on one side of the copper foil are used for measuring the thickness of the edge part and the copper foil in the area adjacent to the edge part;
the thickness gauge assembly 1 is connected with the control system;
the control system is connected with the post-processing driving motor assembly;
the aftertreatment drive motor assembly includes: unreel motor, rolling motor, drive roller motor.
The thickness gauge assembly 1 is arranged between the unwinding roller and the first processing groove.
Further comprising: and a rotation angle sensor is arranged on any guide roller of the post-processing machine and is used for measuring the rotation angle of the guide roller in real time.
The control system comprises a storage module, a calculation module and an execution module;
the data measured by the thickness gauge assembly and the rotation angle sensor are stored in a storage module;
the storage module is bidirectionally connected with the calculation module, namely the calculation module reads the data in the storage module and calculates the target speed V of the copper foil at the current moment of the obtained datatWriting into a storage module;
a comparison module for comparing the target speed V of the copper foil at the current momenttAnd the target speed V of the copper foil at the previous momentt-1；
And the execution module is used for controlling the running speed of the post-processing driving motor assembly.
The distance between the thickness gauge at the edge of the most edge part and the edge of the adjacent copper foil is 10-40 mm, and the distance between the thickness gauge at the edge of the most edge part and the thickness gauge at the secondary edge part is 20-40 mm.
An electrolytic copper foil post-processor is provided with the anti-breaking foil processing device.
A method for preventing foil breakage in post-treatment of 9-20 mu m electrolytic copper foil,
at initial conditions, Vt0Assigned a value of V0，δt0The value is assigned to 0;
which comprises the following steps:
s1, any time t, data of thickness gauge assembly and measured value delta of rotation angle sensortStoring the data into a storage module in the control system;
forming a data sequence in the memory module: t, VAdaptation to t、δt、Vt(ii) a In the storage module, the following are stored in advance: 0. v0、0、V0；
S2, calculating V by the calculating moduleAdaptation to t(the current section copper foil adaptive speed), and the data is stored in a storage module:
s2-1, calculating the maximum difference of the left side areal density and the right side areal density:
the maximum difference of the left-side areal density is (maximum value measured by a thickness meter arranged on the left side of the copper foil-minimum value measured by a thickness meter arranged on the left side of the copper foil) × ρ;
the maximum difference of the right side areal density is (the maximum value of the thickness meter arranged on the right side of the copper foil-the minimum value measured by the thickness meter arranged on the right side of the copper foil) × ρ;
wherein ρ represents the density of the copper foil;
s2-2, calculating VLeft adaptation t：
When: when the surface density of the left side is not less than 1 g/square meter, V is the maximum difference valueLeft adaptation t＝V0；
When: v is more than 1 g/square meter when the maximum difference of the density of the square meter is more than or equal to 1.5 g/square meter and the square meter is more than or equal to the left side faceLeft adaptation t＝V1；
When the maximum difference between the density of the square meter and the square meter is more than or equal to 2 grams per square meter and the surface density of the left side is more than 1.5 grams per square meter, V isLeft adaptation t＝V2；
When the maximum difference value of the left side surface density is more than 2 g/square meter, VLeft adaptation t＝V3；
S2-3, calculating VRight adaptation t：
When: when the surface density of the right side is not less than 1 g/square meter, V is the maximum difference valueRight adaptation t＝V0；
When: v is more than 1 g/square meter when the maximum difference of the density of the square meter is more than or equal to 1.5 g/square meter and the square meter is more than or equal to the right side surfaceRight adaptation t＝V1；
When the maximum difference between the density of the square meter and the square meter is more than or equal to 2 grams per square meter and the surface density of the right side is more than 1.5 grams per square meter, VRight adaptation t＝V2；
When the maximum difference value of the surface density of the right side is more than 2 g/square meter, VRight adaptation t＝V3
S2-4,VAdaptation to t＝min(VLeft adaptation t，VRight adaptation t) (i.e. V)Adaptation to tIs a VLeft adaptation t，VRight adaptation tThe smaller of the two);
S2-5,Vadaptation to tStoring the data into a storage module;
s3, the calculation module reads the data in the storage module and calculates the target running speed V of the copper foil at the time tt：
S3-1, determining time: t-x;
when deltat≤LSecurity/R,t-x＝0；
When deltat>LSecuritySearch for delta in delta sequencet-x(i.e., angle at time t-x) reading data in the memory module, and comparing δtThe data sequence is as follows: deltat-1、δt-2、δt-3. . . . . Until the following equation is satisfied:
(δt-δt-x)≥LsecurityR (i.e., the copper foil has traveled at least L from time t-x to time tSecurity)；
That is, first, it is judged
δt-δt-1(δt-1Representing the angle of the rotation angle sensor at a time immediately before time t) and LSecurityThe relationship of/R, if satisfied: deltat-δt-1≥LSecurityIf the calculation is completed, the calculation is finished, and t-1 is the t-x moment to be searched;
if the following conditions are met: deltat-δt-1<LSecurityR, then repeat, compare: deltat-δt-2And LSecurityThe relationship of/R is such that,
when deltat-δt-2≥LSecurityIf the calculation is completed, the calculation is finished, and t-2 is the t-x moment to be searched;
when deltat-δt-2<LSecurityR, then repeat, compare: deltat-δt-3And LSecurityThe relationship of/R;
circularly calculating until t-x is found, and stopping calculating;
by means of the data sequence "t, VAdaptation to t、δt”，Further determining t-x;
s3-2, V from time t-x to time tAdaptation toFinding the minimum value, VtEqual to the minimum value mentioned above, and VtStoring the data into a storage module;
s4, the comparison module reads V from the storage moduletAnd Vt-1And judging V by comparisontAnd Vt-1Judging whether a signal needs to be sent to adjust the running speed of the copper foil:
when V ist＝Vt-1The execution module does not send out a signal;
when V ist≠Vt-1The execution module sends a signal to the post-processing driving motor assembly to adjust the linear velocity of the copper foil to be Vt。
In the scheme of example 1, LSecurityAnd when the length of the copper foil is not less than the length of the copper foil from the thickness gauge to the first guide roller behind the last processing groove, namely the problem of uneven thickness of the copper foil is detected, the speed reduction processing is carried out in the area.
In the above scheme, V1＝0.8V0-0.9V0，V2＝0.65V0-0.75V0，V3＝0.5V0-0.6V0。
The core idea of embodiment 1 is that: the running speed of the copper foil is as follows: thickness gauge-first guide roll after last treatment tank (i.e. L)Security) The lowest running speed determined by the abnormal section in the range runs; which can avoid the methods used in the background art.
The measuring frequency of the left side thickness gauge, the right side thickness gauge and the rotation angle sensor is 0.01s-0.1 s/time.
It should be noted that the number of the thickness gauges may be 6, for example, 3 on the left side and 3 on the right side;
the maximum difference of the left-side areal density is (maximum value measured by 3 thickness meters arranged on the left side of the copper foil-minimum value measured by 3 thickness meters arranged on the left side of the copper foil) × ρ;
the maximum difference in the right side areal density is (maximum of 3 thickness meters arranged on the right side of the copper foil-minimum measured by 3 thickness meters arranged on the right side of the copper foil) × ρ.
The above-mentioned embodiments are only for convenience of description, and are not intended to limit the present invention in any way, and those skilled in the art will understand that the technical features of the present invention can be modified or changed by other equivalent embodiments without departing from the scope of the present invention.

Claims (7)

1. A foil breakage preventing processing apparatus provided on an electrolytic copper foil post-processing machine, comprising: the thickness gauge comprises a thickness gauge component, a rotation angle sensor and a control system;
the thickness gauge assembly at least comprises 4 thickness gauges, wherein at least 2 thickness gauges are arranged on the left side of the copper foil, and at least 2 thickness gauges are arranged on the right side of the copper foil;
the at least 4 thickness gauges are arranged on the same cross section;
the two thickness gauges distributed on one side of the copper foil are used for measuring the thickness of the edge part and the copper foil in the area adjacent to the edge part;
the thickness gauge assembly and the rotation angle sensor are connected with the control system;
the control system and the post-processing driving motor assembly;
the thickness gauge assembly is arranged between the unwinding roller and the first processing groove;
and the rotation angle sensor is used for measuring the rotation angle of any copper foil guide roller of the post-processor in real time.
2. A break-resistant foil handling device as claimed in claim 1, wherein the control system comprises: the device comprises a storage module, a calculation module, a comparison module and an execution module;
the data measured by the thickness gauge assembly and the rotation angle sensor are stored in a storage module;
the storage module is bidirectionally connected with the calculation module, namely the calculation module reads data in the storage module and calculates the target speed V of the copper foil at the current moment of the obtained datatWriting into a storage module;
wherein, the comparison module is used for comparing the target speed V of the copper foil at the current momenttAnd the target speed V of the copper foil at the previous momentt-1；
The execution module is used for controlling the running speed of the post-processing driving motor assembly.
3. The foil breakage preventing processing apparatus as claimed in claim 1, wherein the thickness gauge of the outermost portion is spaced apart from the edge of the adjacent copper foil by 10 to 40mm, and the distance between the thickness gauge of the outermost portion and the thickness gauge of the minor portion is 20 to 40 mm.
4. A method for post-treating a foil with a thickness of 9 μm to 20 μm to prevent breaking of a foil, characterized in that the post-treating machine is provided with a foil breakage preventing treating apparatus according to any one of claims 1 to 3;
which comprises the following steps:
s1, any time t, data of thickness gauge assembly and measured value delta of rotation angle sensortStoring the data into a storage module in the control system;
forming a data sequence in the memory module: t, VAdaptation to t、δt、Vt(ii) a In the storage module, the following are stored in advance: 0. v0、0、V0；
S2, calculating V by the calculating moduleAdaptation to t(speed of copper foil adaptation at current section) and storing the data in memoryIn the storage module:
s2-1, calculating the maximum difference of the left side areal density and the right side areal density:
the maximum difference of the left-side areal density is (maximum value measured by a thickness meter arranged on the left side of the copper foil-minimum value measured by a thickness meter arranged on the left side of the copper foil) × ρ;
the maximum difference of the right side areal density is (the maximum value of the thickness meter arranged on the right side of the copper foil-the minimum value measured by the thickness meter arranged on the right side of the copper foil) × ρ;
wherein ρ represents the density of the copper foil;
s2-2, calculating VLeft adaptation t：
When: when the surface density of the left side is not less than 1 g/square meter, V is the maximum difference valueLeft adaptation t＝V0；
When: v is more than 1 g/square meter when the maximum difference of the density of the square meter is more than or equal to 1.5 g/square meter and the square meter is more than or equal to the left side faceLeft adaptation t＝V1；
When the maximum difference between the density of the square meter and the square meter is more than or equal to 2 grams per square meter and the surface density of the left side is more than 1.5 grams per square meter, V isLeft adaptation t＝V2；
When the maximum difference value of the left side surface density is more than 2 g/square meter, VLeft adaptation t＝V3；
S2-3, calculating VRight adaptation t：
When: when the surface density of the right side is not less than 1 g/square meter, V is the maximum difference valueRight adaptation t＝V0；
When: v is more than 1 g/square meter when the maximum difference of the density of the square meter is more than or equal to 1.5 g/square meter and the square meter is more than or equal to the right side surfaceRight adaptation t＝V1；
When the maximum difference between the density of the square meter and the square meter is more than or equal to 2 grams per square meter and the surface density of the right side is more than 1.5 grams per square meter, VRight adaptation t＝V2；
When the maximum difference value of the surface density of the right side is more than 2 g/square meter, VRight adaptation t＝V3
S2-4,VAdaptation to t＝min(VLeft adaptation t，VRight adaptation t) (i.e. V)Adaptation to tIs a VLeft adaptation t，VRight adaptation tThe smaller of the two);
S2-5,Vadaptation to tStoring the data into a storage module;
s3, calculating a moduleReading data in the storage module by blocks, and calculating the target operation speed V of the copper foil at the time tt：
S3-1, determining time: t-x;
when deltat≤LSecurity/R,t-x＝0；
When deltat>LSecuritySearch for delta in delta sequencet-x(i.e., angle at time t-x) reading data in the memory module, and comparing δtThe data sequence is as follows: deltat-1、δt-2、δt-3. . . . . Until the following equation is satisfied:
(δt-δt-x)≥LsecurityR; wherein R represents a radius of the guide roll for rotation angle monitoring;
by means of the data sequence "t, VAdaptation to t、δt”，Further determining t-x;
s3-2, V from time t-x to time tAdaptation toFinding the minimum value, VtEqual to the minimum value mentioned above, and VtStoring the data into a storage module;
s4, the comparison module reads V from the storage moduletAnd Vt-1And judging V by comparisontAnd Vt-1Judging whether a signal needs to be sent to adjust the running speed of the copper foil:
when V ist＝Vt-1The execution module does not send out a signal;
when V ist≠Vt-1The execution module sends a signal to the post-processing driving motor assembly to adjust the linear velocity of the copper foil to be Vt。
5. The method for post-treatment foil breakage prevention of 9-20 μm copper foil according to claim 4, wherein L is LSecurityAnd when the length of the copper foil is not less than the length of the copper foil from the thickness gauge to the first guide roller behind the last processing groove, namely the problem of uneven thickness of the copper foil is detected, the speed reduction processing is carried out in the area.
6. The post-treatment breakage-prevention of 9-20 μm copper foil according to claim 4Foil method, characterized in that V1＝0.8V0-0.9V0，V2＝0.65V0-0.75V0，V3＝0.5V0-0.6V0。
7. An electrolytic copper foil post-processor characterized in that the post-processing of the electrolytic copper foil is performed by the foil breakage preventing method according to any one of claims 4 to 6.
CN202010192376.2A 2020-03-18 2020-03-18 Foil breakage preventing device, 9-20 mu m copper foil post-treatment foil breakage preventing method and post-treatment machine Active CN111304699B (en)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108036754A (en) * 2017-12-29 2018-05-15 昆山盈达科机电科技有限公司 Copper foil thickness measuring machine
CN109652826A (en) * 2019-02-22 2019-04-19 圣达电气有限公司 The electrolytic copper foil the thickness uniformity control method of cathode roll
CN110044312A (en) * 2019-05-16 2019-07-23 江苏塔菲尔新能源科技股份有限公司 A kind of measuring device and its measurement method of thickness
CN111364070A (en) * 2020-02-24 2020-07-03 广东嘉元科技股份有限公司 Post-processing single machine for preventing foil breakage, production process, control method and control system

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108036754A (en) * 2017-12-29 2018-05-15 昆山盈达科机电科技有限公司 Copper foil thickness measuring machine
CN109652826A (en) * 2019-02-22 2019-04-19 圣达电气有限公司 The electrolytic copper foil the thickness uniformity control method of cathode roll
CN110044312A (en) * 2019-05-16 2019-07-23 江苏塔菲尔新能源科技股份有限公司 A kind of measuring device and its measurement method of thickness
CN111364070A (en) * 2020-02-24 2020-07-03 广东嘉元科技股份有限公司 Post-processing single machine for preventing foil breakage, production process, control method and control system

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