CN104634263B - Roll bending thickness measurement device and method - Google Patents
Roll bending thickness measurement device and method Download PDFInfo
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- CN104634263B CN104634263B CN201410195782.9A CN201410195782A CN104634263B CN 104634263 B CN104634263 B CN 104634263B CN 201410195782 A CN201410195782 A CN 201410195782A CN 104634263 B CN104634263 B CN 104634263B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/02—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness
- G01B11/06—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness for measuring thickness ; e.g. of sheet material
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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
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/04—Construction or manufacture in general
- H01M10/0404—Machines for assembling batteries
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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
- H01M2220/00—Batteries for particular applications
- H01M2220/30—Batteries in portable systems, e.g. mobile phone, laptop
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- 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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- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Length Measuring Devices By Optical Means (AREA)
- Battery Electrode And Active Subsutance (AREA)
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
- Controlling Rewinding, Feeding, Winding, Or Abnormalities Of Webs (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
Provide a kind of roll bending thickness measurement device and its method, the roll bending thickness measurement device can by with the thickness of component coordination electrode plate come measuring electrode plate thickness and improve the reliability of the uniformity of measurement and the thickness data of measurement.
Description
This application claims on November 11st, 2013 the 10-2013-0136325 South Korea patent application submitted it is preferential
The full content of power and equity, the South Korea patent application is contained in this by reference.
Technical field
Many aspects of the invention are related to a kind of roll bending thickness measurement device and its method.
Background technique
Along with the increase recently to the exploitation of mobile device technology and demand, to two of the energy source as mobile device
The demand of primary cell is quickling increase.Therefore, battery is studied, to cope with extensive and various demand.Specifically
Say that the demand to the lithium secondary battery with high energy density, discharge voltage and output stability is high in ground.
In general, manufacturing secondary cell by following step: being formed by coating active material on the surface of collector
Partition insertion is simultaneously formed electrode assembly therebetween by positive plate and negative plate (hereinafter will be referred to as electrode plate), with
Electrode assembly is placed in afterwards in the cylindrical or prismatic tank or pouch-type shell formed by aluminium layer lamination.At this point, by liquid electrolytic
Matter or solid electrolyte injection are beaten into electrode assembly.
In the secondary battery, it is important for producing secondary cell as much as possible while keeping the consistency of battery quality
Factor.Therefore, the thickness of the roll bending shape electrode plate of management formation on a current collector is extremely important well.
When manufacturing the electrode plate of traditional secondary battery, optical device is being installed around the electrode plate that roller is wound, and
The image of the roll bending shape electrode plate obtained from optical device is read, thus the thickness of measuring electrode plate.
However, in traditional roll bending thickness measurement device, roller can due to roller continuous use and deform, so as to cause electricity
The measurement error of electrode thickness.
In order to avoid there is the measurement error of electrode plate thickness, need to be corrected roll bending thickness measurement device.However,
The calibration result of roll bending thickness measurement device is very little, so emergent error can not can avoid.
Summary of the invention
Many aspects of the invention provide a kind of roll bending thickness measurement device, which can pass through
The thickness of roll bending shape electrode plate is measured using the thickness of each component coordination electrode plate of electrode plate and improves measurement uniformity
With the reliability of the thickness data of measurement.
Other aspects of the present invention provide a kind of roll bending method for measuring thickness, which can pass through
Thickness using component coordination electrode plate improves the consistency of measurement and the thickness data of measurement come the thickness of measuring electrode plate
Reliability.
According to an aspect of the present invention, a kind of roll bending thickness measurement device, the roll bending thickness measurement device packet are provided
It includes: rotating roller；Electrode plate winds around roller and moves along the direction of rotation of roller；Detector, detect peripheral surface from roller or
The amount or image of the light of the outer surface of electrode plate on roller；Processor uses the amount or figure of the light of the peripheral surface of roller
As the first profile data of the peripheral surface of detection signal generation roller, first profile data are divided into the first component and second point
Amount, the difference between reference data and measurement data is calculated by each of the first component and second component, by making
The is generated with the correction of calculated difference includes the measurement data of the first component and second component in first profile data
Two outline datas generate the displacement of the target outer surface of electrode plate using the amount or image sensing signal of the light of the peripheral surface of roller
Data are measured, and by being compared to the second outline data and displacement data to calculate the thickness of electrode plate.
Processor may include: Data Generator, using the light of the outer surface of the peripheral surface and electrode plate of roller amount or
Image sensing signal generates first profile data and displacement data；Component separator, by first profile data separating be with
Relevant first component of deflecting angle and with highly relevant second component；First function generator and second function generator lead to
It crosses each of the first component in first profile data and second component and uses the difference between reference data and measurement data
Value is generated for the first function and second function by each of the first component and second component correcting measuring data；
Correction data generator generates the second profile using the first function and second function for making generation control function superposed on one another
Data；Thickness calculation unit calculates the thickness of electrode plate using the second outline data and displacement data of generation.
First function can be used to the first component in the reference time in the peripheral surface of corrector roll and in measurement
Between when the first component between angle difference.
When angle difference can be defined as the peripheral surface based on the roller in the reference time in time of measuring relative to
The angle value in left region and right region that the middle section of the peripheral surface of roller deviates on the longitudinal direction of roller.
Second function can be used to second component in the reference time in the peripheral surface of corrector roll and in measurement
Between when second component between height difference.
Roller is outer when height difference can be defined as the peripheral surface based on the roller in the reference time in time of measuring
Height value of the perimeter surface on the longitudinal direction of roller.
Control function can be by correcting first function and second function superposition including in first profile data
The first component and each of second component measurement data function.
Detector may include: light source unit, light shine the peripheral surface of roller and the outer surface of electrode plate；Optics position
Displacement sensor, in face of light source unit and be arranged so that roller between optical displacement sensor and light source unit, detector
According to the distribution of the amount for the light that the peripheral surface of roller and the target outer surface of electrode plate are irradiated and passed through from light source unit come real
When measuring roll peripheral surface light amount and electrode plate target outer surface light amount.
The roll bending thickness measurement device can also include delivery framework, and light source unit and optical displacement sensor are pacified respectively
In delivery framework, wherein delivery framework is relative to the peripheral surface of roller or the target outer surface of electrode plate along the longitudinal direction of roller
Direction is mobile.
Processor can also include memory cell, the first profile data of the peripheral surface of memory cell storage roller and
Second outline data, wherein from the first profile data and the second outline data of the peripheral surface of memory cell receiving roll,
Two outline datas are the first profile data of the peripheral surface based on roller and generate, the displacement of the target outer surface of electrode plate
Data are the second outline datas based on generation and generate.
Processor can also include: display unit, the thickness of the electrode plate calculated to external display；Alert generator, when
When the thickness of the electrode plate of calculating is more than the preset reference thickness value of electrode plate, alert generator generates alarm signal；Driving control
Device processed controls rotation and movement, the movement of electrode plate and the driving of detector of roller；Master controller controls various components
Operation.
The outline data of the peripheral surface of roller may include the position coordinate value of the entire peripheral surface of roller.
The displacement data of the target outer surface of electrode plate may include the position coordinate value of the target outer surface of electrode plate,
The position coordinate value is the second profile of the peripheral surface based on roller corresponding with the position of target outer surface of electrode plate
Data institute is calculated.
Detector may include: light source unit, light shine the peripheral surface of roller and the outer surface of electrode plate；Image obtains
Sensor is taken, faces light source unit, and irradiate and passed through the peripheral surface and electrode plate of roller from light source unit by detection
Target outer surface light come measuring roll peripheral surface light amount and electrode plate target outer surface light amount.
According to another aspect of the present invention, a kind of roll bending method for measuring thickness, the roll bending method for measuring thickness are provided
It include: the peripheral surface for light shining roller for the first time；Roller is generated according to the distribution of the amount of the light for the peripheral surface for having passed through roller
Peripheral surface first profile data；By the way that first profile data are divided into the first component and second component, by first point
Each of amount and second component calculate the difference between reference data and measurement data and use calculated difference school
It is just including the measurement data of the first component and second component in first profile data to generate the second outline data；Second
Light shine the target outer surface of the electrode plate of the peripheral surface winding around roller；Use the mesh from the electrode plate wound around roller
Mark the displacement data of the target outer surface of the light detecting signal generation electrode plate of outer surface；By by the second outline data and position
Shifting amount data are compared to calculate the thickness of electrode plate.
It is relevant to deflecting angle first that the step of generating the second outline data, which may include: by first profile data separating,
Component and with highly relevant second component；By including the first component in first profile data and every in second component
One is generated using the difference between reference data and measurement data for by each in the first component and second component
The first function and second function of a correcting measuring data；Utilize the control for keeping the first function and second function of generation superposed on one another
Function processed generates correction data, i.e. the second outline data.
The roll bending method for measuring thickness can also include: the thickness of the electrode plate calculated to external display；When calculating
When the thickness of electrode plate is more than the preset reference thickness of electrode plate, alarm signal is generated.
As described above, in roll bending thickness measurement device according to an embodiment of the present invention and method, it is raw using optical device
At electrode plate winding institute around roller outline data, outline data be split up into deflecting angle component and altitude component with by dividing
Controlling profile data on the basis of amount and the outline data for generating correction, the outline data using correction and the electrode around roller winding
The displacement data of plate carrys out the thickness of measuring electrode plate, thus improves the uniformity of the thickness of measuring electrode plate and enhances electrode plate
The reliability of the measurement data of thickness.
Other aspects of the present invention and/or advantage are partly described in the following description section, partially will be from description
It is clear that can be understand through the implementation of the invention.
Detailed description of the invention
By the detailed description carried out below in conjunction with the accompanying drawings, objects, features and advantages of the present invention will be apparent from, attached
In figure:
Fig. 1 is the cross-sectional view for showing roll bending thickness measurement device according to an embodiment of the present invention；
Fig. 2 is the block diagram for showing the construction of processor shown in Fig. 1；
Fig. 3 A is to diagrammatically illustrate the peripheral surface by light shining roller shown in Fig. 1 come the amount of detection light
The schematic diagram of operation, Fig. 3 B are to diagrammatically illustrate outer surface by light shining electrode plate shown in Fig. 1 to detect
The schematic diagram of the operation of the amount of light；
Fig. 4 is the block diagram for showing the construction of arithmetic element shown in Figure 2；
Fig. 5 A and Fig. 5 B show the operation of first function generator shown in Fig. 4；
Fig. 6 A and Fig. 6 B show the operation of second function generator shown in Fig. 4；
Fig. 7 is the cross-sectional view for showing roll bending thickness measurement device according to another embodiment of the present invention；
Fig. 8 is the flow chart for showing roll bending method for measuring thickness according to another embodiment of the present invention；
The flow chart for the step of Fig. 9 is the step of showing separation component shown in Fig. 8 and by component control data.
Specific embodiment
Hereinafter, the example that will be described in detail with reference to the accompanying drawings the embodiment of the present invention, allows them to by this field
Technical staff is easily manufactured and uses.
Fig. 1 is the cross-sectional view for showing roll bending thickness measurement device according to an embodiment of the present invention, and Fig. 2 is to show in Fig. 1 to show
The block diagram of the construction of processor out, Fig. 3 A are the outer weekly forms diagrammatically illustrated by light shining roller shown in Fig. 1
The schematic diagram of the operation of the amount of detection light is carried out in face, and Fig. 3 B is diagrammatically illustrated by light shining electrode shown in Fig. 1
The schematic diagram of the operation of the amount of detection light is carried out in the outer surface of plate, and Fig. 4 is the frame for showing the construction of arithmetic element shown in Figure 2
Figure, Fig. 5 A and Fig. 5 B show the operation of first function generator shown in Fig. 4, and Fig. 6 A and Fig. 6 B show shown in Fig. 4 the
The operation of two function generators.
Referring to figs. 1 to Fig. 3 B, roll bending thickness measurement device 100 according to an embodiment of the present invention includes roller 110, electrode plate
120, detector 130 and processor 150.
It 110 cylindrical in shape of roller and rotates along the longitudinal direction.The central axis of roller 110 is fixed to external fixed cell
(not shown), so that the peripheral surface of roller 110 becomes reference surface, the electrode plate 120 wound around the peripheral surface of roller 110 is permitted
Perhaps it is steadily moved relative to the longitudinal direction of roller 110.
In addition, roller 110 can be made of metal material, to prevent the electrode for winding around its peripheral surface and moving in real time
Plate 120 deforms, but the material of roller 110 is not limited to metal material by the present invention.
Electrode plate 120 winds around roller 110 and moves along the direction that roller 110 rotates.That is, electrode plate 120 is along vertical with roller 110
The direction vertical to direction is mobile.Keep electrode plate 120 mobile towards roller 110 by external electrical pole plate feed unit (not shown).
Here, electrode plate 120 can be the positive plate formed and coating active material on the surface of the collector of secondary cell
Or negative plate, but the present invention does not limit the purposes and type of electrode plate 120 specifically.
The target appearance of peripheral surface or the electrode plate 120 that around roller 110 winds of the detection of detector 130 from roller 110
The light in face.Here, the target outer surface of electrode plate 120 is the region of the outer surface of electrode plate 120, uses the detection moved in real time
Device 130 will test the amount for carrying out the light in region since then.
Detector 130 includes light source unit 131 and optical displacement sensor 132.Here, light source unit 131 and optics position
Displacement sensor 132 is mounted in delivery framework 140, to be positioned on same axis.
Light L is irradiated to the peripheral surface of roller 110 and the outer surface of electrode plate 120 by light source unit 131.Light source unit 131
It may include reflecting mirror 131a, reflecting mirror 131a can change the direction of light L in various ways.It is irradiated from light source unit 131
Light L may include visible light, near-infrared laser or Submillineter Wave Technology, but not limited to this.
Optical displacement sensor 132 is in face of light source unit 131 and is configured to that roller 110 is made to be located at 131 He of light source unit
Between optical displacement sensor 132.Optical displacement sensor 132 according to from light source unit 131 irradiate and have already passed through roller 110
The light quantity distribution of the light L of the target outer surface of peripheral surface and electrode plate 120 detects the peripheral surface and electrode from roller 110
The amount of the light of the target outer surface of plate 120.That is, the optical displacement sensor 132 including optical receiver lens passes through optical receiver lens
A part of light for having passed through the peripheral surface of roller 110 forms spot (spot) and detects the amount of the light of spot, and light is examined
It surveys signal and is sent to processor 150 in the form of voltage output.In addition, optical displacement sensor 132 is connect by optical receiver lens
A part of light for having already passed through the target outer surface of the electrode plate 120 moved in real time is received to form spot, detection shape on spot
At light amount, and send light detecting signal in the form of voltage output processor 150.Here, optical displacement sensor
132 can be the optical sensors corresponding to light source, but the type of sensor is not limited to biography as described herein by the present invention
The type of sensor.In addition, being well known in the present art and having used using the light detection of optical displacement sensor, will save
Slightly its detailed description.
Delivery framework 140 includes a pair of of the cylindricality for being installed as facing light source unit 131 and optical displacement sensor 132 respectively
Part 141 and connect this main part 142 to cylindrical section 141.Cylindrical section 141 is installed so that light source unit 131
With optical displacement sensor 132 be coaxially attached to cylindrical section 141 on the surface.Main part 142 is by cylindrical section
141 are connected to each other, to support cylindrical section 141 to be fixed it.Delivery framework 140 can be relative to the peripheral surface of roller 110
Or the target outer surface of electrode plate 120 is moved along the longitudinal direction of roller 110.
Processor 150 generates the first profile of the peripheral surface of roller 110 using the light detecting signal of the peripheral surface of roller 110
Data.That is, processor 150 generates roller 110 using the light detecting signal of the peripheral surface of roller 110 when rotating roller 110
The first profile data of whole or local peripheral surface.In addition, processor 150 first profile data are divided into it is related to deflecting angle
The first component and with highly relevant second component, and reference is calculated by each of the first component and second component
Difference between data and measurement data.In addition, processor 150 is corrected using the difference between reference data and measurement data
Measurement data including the first component and second component in first profile data, and generate the second outline data.Then, locate
Reason device 150 generates the mesh of electrode plate 120 using the light detecting signal of the target outer surface of the electrode plate 120 wound around roller 110
The displacement data of outer surface is marked, and the second outline data is compared with displacement data, thus calculates electrode plate 120
Thickness.
Here, first profile data are the light detecting signals by partially or completely mapping the peripheral surface of roller 110
And the global mapping data generated in the form of the plane to include multiple coordinate values.That is, first profile data may include roller 110
Entire peripheral surface position coordinate value.In addition, the second outline data may include being obtained by correction first profile data
Roller 110 entire peripheral surface position coordinate value.
In addition, the displacement data of the target outer surface of electrode plate 120 may include the mesh based on position Yu electrode plate 120
Mark the target outer surface of the second outline data of the peripheral surface of the corresponding roller 110 in outer surface and calculated electrode plate 120
Position coordinate value.The position coordinate value of the target peripheral surface of electrode plate 120 may include the corresponding outer weekly form using roller 110
The calculated output voltage values of light detecting signal of the target outer surface of second outline data and electrode plate 120 in face.In addition, position
Set coordinate value can be by being indicated based on the periodic function (wt=2 π f) of the mobile time (t) of electrode plate 120.
Therefore, the thickness of electrode plate 120 can be with the position coordinate value of the target outer surface of electrode plate 120 and roller 110
The difference between position coordinate value after the correction of peripheral surface is corresponding.
In order to implement aforesaid operations, processor 150 include arithmetic element 151, memory cell 152, display unit 153,
Alert generator 154, drive control device 156 and master controller 155.
Arithmetic element 151 generates the first round of the peripheral surface of roller 110 using the light detecting signal of the peripheral surface of roller 110
First profile data are divided into the first component and second component, pass through each of the first component and second component by wide data
The difference between reference value and measurement data is calculated, includes in first profile data by using the correction of calculated difference
The measurement data of first component and second component and generate the second outline data, use the mesh of the electrode plate 120 wound around roller 110
Mark outer surface light detecting signal generate electrode plate 120 target outer surface displacement data, and by by the second profile
Data are compared the thickness for calculating electrode plate 120 with displacement data.Meanwhile arithmetic element 151 can be designed to count
Calculation machine (PC) or programmable logic controller (PLC) (PLC), to realize the of the peripheral surface of roller 110 in a manner of software or hardware
The calculating of the thickness of the generation or electrode plate 120 of one outline data and the second outline data.
Referring to Fig. 4, arithmetic element 151 includes Data Generator 1510, component separator 1520, first function generator
1530, second function generator 1540, correction data generator 1550 and thickness calculation unit 1560.
Data Generator 1510 generates first using the light detecting signal of the peripheral surface from roller 110 and electrode plate 120
Outline data and displacement data.First profile data include roller 110 peripheral surface upper value be " 0 " reference data, with
And by detecting the measurement data for being irradiated to the amount of the light of peripheral surface of roller 110 and obtaining.Here, reference data can be by
The angle or height of the peripheral surface of roller 110 are defined as the data of " 0 ", and measurement data can be a left side for the peripheral surface of roller 110
The data of angle possessed by side and right side or height.
Component separator 1520 by first profile data be divided into the first component relevant to deflecting angle and with it is highly relevant
Second component.The angular deviation of first representation in components reference data and measurement data.Second component indicates reference data and survey
Measure the upper lower deviation of data.
First function generator 1530 and second function generator 1540 are by including first in first profile data
Each of component and second component generate first function and second function, to define between reference data and measurement data
Difference.
In more detail, first function generator 1530 can be used the first component and generate first function.First function can
Be for correct the first component (R1, R2 in Fig. 5 A) in the reference time in the peripheral surface of roller 110 in measurement
Between when the first component (R3, R4 in Fig. 5 B) between angle difference (θ) function.Here, angle difference (θ) is in measurement
Between when left region and You Qu of the peripheral surface based on roller 110 relative to the deviation of the middle section Ro of the peripheral surface of roller 110
Deflecting angle angle value of domain R1 to the R4 on the longitudinal direction of roller 110, and can be defined as error function (Er (t)).It is obtaining
It takes based in the case where being set as measurement data obtained from the reference data of " 0 ", the positive value as angle difference (θ) shows roller
110 are rotated in a clockwise direction, and the negative value as angle difference (θ) shows that roller 110 is rotated in the counterclockwise direction.In addition, first
Equation (1) can be used to compensate the inclined difference of the peripheral surface of caused roller 110 in time of measuring, in Fig. 5 B in function
It is shown.Preferably, second component will not change at this moment.
R (t)=Kp × (Er (t)+(1/Ti) × ∫ Er (t) dt) ... (1)
Wherein, R (t) indicate first function, Er (t) indicate for being defined on the reference time when the first component and measuring
The error function of the angle difference between the first component when the time, Kp are proportionality constants, and Ti is integral constant.
In addition, second component, which can be used, in second function generator 1540 generates second function.Second function can be use
The when second component (P1, P2 in Fig. 6 A) when correction is in the reference time in the peripheral surface of roller 110 is in time of measuring
The function of height difference (H) between two components (P3, P4 in Fig. 6 B).
Here, height difference (H) include the peripheral surface based on roller middle section Po and left region P1 and right region
The middle section Po' and left region P3 and right region P4 of the peripheral surface of roller 110 of the P2 in time of measuring are in the vertical of roller 110
Height value on direction, and can be defined as error function (Ep (t)).By calculating reference data and measurement data
The variable quantity of average value, height difference (H) indicate that height is increase relative to reference altitude or reduces.In addition, second function
Equation (2) can be used to compensate the difference of the height of the peripheral surface of caused roller 110 in time of measuring, such as institute in Fig. 6 B
Show.Preferably, the first component will not change at this moment.
P (t)=Kp × (Ep (t)+(1/Ti) × ∫ Ep (t) dt) ... (2)
Wherein, P (t) indicate second function, Ep (t) indicate for being defined on the reference time when second component and measuring
The error function of the angle difference between second component when the time, Kp are proportionality constants, and Ti is integral constant.
Correction data generator 1550 can be by making by first function generator 1530 and second function generator 1540
The first function and second function of generation are superimposed and generate the second outline data.Second outline data can be defined as by equation
(3) control function indicated.Control function can be included in the first round by being superimposed first function and second function to correct
The measurement data of the first component and each of second component in wide data.
Rt (t)=PV (t)+R (t)+P (t) ... (3)
Wherein, Rt (t) indicates that control function, PV (t) indicate the measurement for measurement data when being defined on time of measuring
Function.
Thickness calculation unit 1560 is given birth to using the second outline data generated by correction data generator 1550 and by data
Grow up to be a useful person 1510 generations displacement data come calculate around roller 110 wind electrode plate 120 thickness.In more detail, thickness gauge
It calculates unit 1560 and receives the second outline data obtained by correcting first profile data from correction data generator 1550, from
The light detecting signal of the target outer surface of 1510 receiving electrode plate 120 of Data Generator and the electrode generated using light detecting signal
The displacement data of the target outer surface of plate 120, and by by the second outline data and electrode plate of the peripheral surface of roller 110
The displacement data of 120 target outer surface is compared to calculate the thickness of electrode plate 120.
The first profile data and the second outline data of the peripheral surface of 152 storage roller 110 of memory cell.Here, make
Pass through the first profile number that arithmetic element 151 generates the peripheral surface of roller 110 with the light detecting signal of the peripheral surface of roller 110
According to generating the second outline data by arithmetic element 151 based on first profile data.In addition, memory cell 152 can incite somebody to action
The first profile data and second of the peripheral surface of the coordinate Value Data and roller 110 of detector 130 fixed to delivery framework 140
Outline data stores together.
Display unit 153 will show outside by the thickness of the calculated electrode plate 120 of arithmetic element 151.That is, aobvious
Show that unit 153 shows the thickness of the electrode plate 120 moved in real time with character or graphic form, thus readily recognizes operator
The variation of the thickness of electrode plate 120.
When the thickness by the calculated electrode plate 120 of arithmetic element 151 is more than the preset reference thickness value of electrode plate 120
When, alert generator 154 generates alarm signal.That is, alert generator 154 will be used for the underproof ginseng of detecting electrode plate 120
It examines thickness to be compared with the real-time calculated thickness of electrode plate 120, and when the thickness of electrode plate 120 is more than the reference thickness
When, alert generator 154 shows alarm signal to outside in the form of character or audio, thus operator is made to readily recognize electricity
The deformation of pole plate 120.
The rotation and movement, the movement of electrode plate 120 and the drive of detector 130 of the control roller 110 of drive control device 156
It is dynamic.It is ordered that is, drive control device 156 can be received from master controller 155, and the rotation of roller 110 or movement can be made, can be made
Electrode plate 120 is mobile or can drive detector 130.
Master controller 155 controls arithmetic element 151, memory cell 152, display unit 153,154 and of alert generator
The operation of drive control device 156.In addition, master controller 155 constantly manages the periphery of the roller 110 generated by arithmetic element 151
The first profile data and the second outline data on surface.Therefore, when anticipating the deformation of roller 110 or when each scheduled
Section, master controller 155 control arithmetic element 151, thus update first profile data and the second outline data.
Meanwhile master controller 155 is connected to power supply unit 157, and can be controlled and will be supplied by power supply unit 157
To the power of each component of roll bending thickness measurement device 100.
Fig. 7 is to show the cross-sectional view of roll bending thickness measurement device according to another embodiment of the present invention.
Referring to Fig. 7, roll bending thickness measurement device 200 according to another embodiment of the present invention include roller 110, electrode plate 120,
Detector 230 and processor 250.
Roll bending thickness measurement device 200 shown in Fig. 7 and roll bending thickness measurement device 100 shown in Fig. 1 to Fig. 6 B
The difference is that the optical displacement sensor 132 of detector 130 is replaced by image acquisition sensor 232.Following description
It will focus on the detector 230 including image acquisition sensor 232, detector 230 is and the thickness of roll bending shown in Fig. 1 to Fig. 6 B
Spend the different functional unit of the functional unit of measuring device 100.
In addition, the functional group in the roll bending thickness measurement device 200 being shown in FIG. 7, with roll bending thickness measurement device 100
The identical functional unit of part will be applied to the following examples, and will omit detailed description thereof.
The peripheral surface of 230 real-time detection roller 110 of detector or around the electrode plate 120 target outer surface that roller 110 is wound
Image.
Detector 230 includes light source unit 231 and image acquisition sensor 232.In addition, light source unit 231 and image obtain
Sensor 232 is taken to be mounted in delivery framework 240, thus by being coaxially positioned.
Light L is irradiated to the peripheral surface of roller 110 and the outer surface of electrode plate 120 by light source unit 231.
Image acquisition sensor 232 be positioned face to light source unit 231 and detect from light source unit 231 irradiate and
The light of target outer surface through peripheral surface and electrode plate 120 across roller 110, thus the peripheral surface of real-time detection roller 110
Image and electrode plate 120 target outer surface image.
Processor 250 generates the first round of the peripheral surface of roller 110 using the image sensing signal of the peripheral surface of roller 110
Wide data.In addition, first profile data are divided into the first component and second component and pass through the first component and second by processor 250
Each of component calculates the difference between reference data and measurement data.Processor 250 by using reference data and
Difference between measurement data correcting the measurement data including the first component and second component in first profile data and
Generate the second outline data.
Therefore, processor 250 is by the second outline data generated by correction data generator 1550 and by Data Generator
1510 displacement datas generated are compared, and thus calculate the thickness of the electrode plate 120 wound around roller 110.Here, by
The first profile data of the peripheral surface for the roller 110 that reason device 250 generates and the second outline data are stored in memory cell 252
In.
Fig. 8 is to show the flow chart of roll bending method for measuring thickness according to another embodiment of the present invention, and Fig. 9 is to show
The flow chart for the step of controlling data the step of separation component and by component shown in Fig. 8.
Referring to Fig. 8 and Fig. 9, roll bending method for measuring thickness according to another embodiment of the present invention is related to a kind of by detection the
Two outline datas (being obtained by the first profile data of the peripheral surface of each component correction roller) and the electrode wound around roller
The method that the displacement data of the outer surface of plate carrys out the thickness of measuring electrode plate.It can implement roll bending according to another embodiment
Roll bending thickness measurement device shown in Fig. 1 to Fig. 7 is used in method for measuring thickness.
In more detail, roll bending method for measuring thickness includes: the peripheral surface that (S100) light shines roller for the first time；
(S200) the first profile data of the peripheral surface of roller are generated according to the distribution of the amount of the light for the peripheral surface for having already passed through roller；
(S300) by the way that first profile data are divided into the first component and second component, by each in the first component and second component
A difference calculated between reference data and measurement data and it is included in first profile data using the correction of calculated difference
In the first component and the measurement data of second component generate the second outline data；(S400) it is light shone for the second time around roller
Peripheral surface winding electrode plate target outer surface；(S500) the target outer surface from the electrode plate wound around roller is used
Light detecting signal generate electrode plate target outer surface displacement data；(S600) by by the second outline data and displacement
Amount data are compared to calculate the thickness of electrode plate.
The step of generating the second outline data (S300) includes: (S310) is and deflecting angle phase by first profile data separating
Close the first component and with highly relevant second component；(S320 and S325) is by including first in first profile data
Each of component and second component are generated using the difference between reference data and measurement data for by first point
The first function and second function of each correcting measuring data of amount and second component；(S330) the first letter for making generation is utilized
It counts with second function control function superposed on one another and generates correction data, i.e. the second outline data.
In addition, roll bending method for measuring thickness can also include: the thickness for the electrode plate that (S700) is calculated to external display；
(S800) when the thickness of the electrode plate of calculating is more than the preset reference thickness value of electrode plate, alarm signal is generated.
It is raw using optical device in the roll bending thickness measurement device according to an embodiment of the present invention and method described in front
In rolls around electrode plate around roller outline data, outline data is split up into deflecting angle component and altitude component, with by
Controlling profile data on the basis of component and the outline data for generating correction, and wound using the outline data of correction and around roller
The displacement data of electrode plate carry out the thickness of measuring electrode plate, thus improve the uniformity of measuring electrode plate thickness and enhance electricity
The reliability of the measurement data of electrode thickness.
The roll bending thickness measurement device of an exemplary embodiment of the present invention is described in detail although having been described above
And method, it should be appreciated that arrive, what those skilled in the art was understood that permits basic inventive concept described herein
Change will still fall in the spirit and scope of exemplary embodiment of the present invention defined by the claims more with modification.
Claims (17)
1. a kind of roll bending thickness measurement device, the roll bending thickness measurement device include:
Rotating roller；
Electrode plate winds around roller and moves along the direction of rotation of roller；
Detector detects the amount or image of the light of the outer surface of the peripheral surface from roller or the electrode plate on roller；With
And
Processor generates the first profile number of the peripheral surface of roller using the amount or image sensing signal of the light of the peripheral surface of roller
According to first profile data are divided into the first component and second component, are counted by each of the first component and second component
The difference between reference data and measurement data is calculated, includes in first profile data by using the correction of calculated difference
The measurement data of first component and second component generates the second outline data, uses the target appearance of the electrode plate wound around roller
The amount or image sensing signal of the light in face generate the displacement data of the target outer surface of electrode plate, and by by the second profile
Data and displacement data are compared to calculate the thickness of electrode plate.
2. roll bending thickness measurement device as described in claim 1, wherein processor includes:
Data Generator generates using the amount or image sensing signal of the peripheral surface of roller and the light of the outer surface of electrode plate
One outline data and displacement data；
Component separator, by first profile data separating be the first component relevant to deflecting angle and with highly relevant second point
Amount；
First function generator and second function generator, by the first component and second component in first profile data
Each is generated using the difference between reference data and measurement data for by every in the first component and second component
The first function and second function of one correcting measuring data；
Correction data generator generates second using the first function and second function for making generation control function superposed on one another
Outline data；And
Thickness calculation unit calculates the thickness of electrode plate using the second outline data and displacement data of generation.
3. roll bending thickness measurement device as claimed in claim 2, wherein first function is used in the peripheral surface of corrector roll
Angle difference between the first component in the reference time and the first component in time of measuring.
4. roll bending thickness measurement device as claimed in claim 3, wherein angle difference is defined as based in the reference time
Middle section of the peripheral surface in time of measuring relative to the peripheral surface of roller of roller deviate on the longitudinal direction of roller
The angle value in left region and right region.
5. roll bending thickness measurement device as claimed in claim 2, wherein second function is used in the peripheral surface of corrector roll
Second component in the reference time and the height difference between the second component in time of measuring.
6. roll bending thickness measurement device as claimed in claim 5, wherein height difference is defined as based in the reference time
Roller roller of the peripheral surface in time of measuring height value of the peripheral surface on the longitudinal direction of roller.
7. roll bending thickness measurement device as claimed in claim 2, wherein control function is by by first function and the second letter
Number is superimposed to correct the letter of the measurement data including the first component and each of second component in first profile data
Number.
8. roll bending thickness measurement device as described in claim 1, wherein detector includes:
Light source unit light shines the peripheral surface of roller and the outer surface of electrode plate；And
Optical displacement sensor, in face of light source unit and be arranged so that roller be located at optical displacement sensor and light source unit it
Between, detector is according to the amount of the light that the peripheral surface of roller and the target outer surface of electrode plate are irradiated and passed through from light source unit
Distribution carrys out the amount of the light of the amount of the light of the peripheral surface of real-time detection roller and the target outer surface of electrode plate.
9. roll bending thickness measurement device as claimed in claim 8, the roll bending thickness measurement device further includes delivery framework, light
Source unit and optical displacement sensor are separately mounted in delivery framework, wherein delivery framework relative to roller peripheral surface or
It is moved along the longitudinal direction of roller the target outer surface of electrode plate.
10. roll bending thickness measurement device as described in claim 1, wherein processor further includes memory cell, memory list
The first profile data and the second outline data of the peripheral surface of first storage roller, wherein from the periphery of memory cell receiving roll
The first profile data and the second outline data on surface, the second outline data are the first profile data of the peripheral surface based on roller
And generate, the displacement data of the target outer surface of electrode plate is the second outline data based on generation and compares.
11. roll bending thickness measurement device as described in claim 1, wherein processor further include:
Display unit, the thickness of the electrode plate calculated to external display；
Alert generator, when the thickness of the electrode plate of calculating is more than the preset reference thickness value of electrode plate, alert generator is raw
At alarm signal；
Drive control device controls rotation and movement, the movement of electrode plate and the driving of detector of roller；And
Master controller controls the operation of various components.
12. roll bending thickness measurement device as described in claim 1, wherein the outline data of the peripheral surface of roller includes roller
The position coordinate value of entire peripheral surface.
13. roll bending thickness measurement device as claimed in claim 12, wherein the displacement data of the target outer surface of electrode plate
The position coordinate value of target outer surface including electrode plate, the position coordinate value are based on the target outer surface with electrode plate
The second outline data institute of the peripheral surface of the corresponding roller in position is calculated.
14. roll bending thickness measurement device as described in claim 1, wherein detector includes:
Light source unit light shines the peripheral surface of roller and the outer surface of electrode plate；And
Image acquisition sensor faces light source unit, and irradiates and passed through the outer weekly form of roller from light source unit by detection
The light of face and the target outer surface of electrode plate carrys out the light of the amount of the light of the peripheral surface of measuring roll and the target outer surface of electrode plate
Amount.
15. a kind of roll bending method for measuring thickness, the roll bending method for measuring thickness include:
The peripheral surface of roller is light shone for the first time；
The first profile data of the peripheral surface of roller are generated according to the distribution of the amount of the light for the peripheral surface for having passed through roller；
By the way that first profile data are divided into the first component and second component, by each of the first component and second component
The difference between reference data and measurement data is calculated, and is included in first profile data using the correction of calculated difference
The first component and second component measurement data, the second outline data of Lai Shengcheng；
The target outer surface of the electrode plate of the peripheral surface winding around roller is light shone for the second time；
The target outer surface of electrode plate is generated using the light detecting signal of the target outer surface from the electrode plate wound around roller
Displacement data；
By the way that the second outline data and displacement data are compared to calculate the thickness of electrode plate.
16. roll bending method for measuring thickness as claimed in claim 15, wherein generate the second outline data the step of include:
By first profile data separating be the first component relevant to deflecting angle and with highly relevant second component；
It is used between reference data and measurement data by each of the first component of first profile data and second component
Difference generate for the first function and second by each of the first component and second component correcting measuring data
Function；
The second outline data is generated using the first function and second function that make generation control function superposed on one another.
17. roll bending method for measuring thickness as claimed in claim 16, the roll bending method for measuring thickness further include:
The thickness of the electrode plate calculated to external display；
When the thickness of the electrode plate of calculating is more than the preset reference thickness value of electrode plate, alarm signal is generated.
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| KR10-2013-0136325 | 2013-11-11 | ||
| KR1020130136325A KR102043459B1 (en) | 2013-11-11 | 2013-11-11 | Web thickness measuring equipment and method |
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| JP6465914B2 (en) * | 2017-03-21 | 2019-02-06 | 本田技研工業株式会社 | Electrode manufacturing method and apparatus |
| KR102043564B1 (en) * | 2018-08-29 | 2019-11-12 | 주식회사 포스코 | Measuring apparatus telescope of coil |
| JP6867357B2 (en) * | 2018-11-09 | 2021-04-28 | 本田技研工業株式会社 | How to measure the amount of coating |
| CN111006597B (en) * | 2019-11-13 | 2021-06-11 | 北京航星机器制造有限公司 | Thin-wall cylinder wall thickness measuring system and wall thickness uniformity judging method |
| WO2023211123A1 (en) * | 2022-04-29 | 2023-11-02 | 주식회사 엘지화학 | Coating thickness measurement apparatus and method |
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| CN1123018A (en) * | 1994-02-28 | 1996-05-22 | 赫尔曼·克朗塞德机械工厂克朗塞有限公司 | Machine for labelling objects |
| CN1215151A (en) * | 1998-07-11 | 1999-04-28 | 中国科学院安徽光学精密机械研究所 | Laser on-line testing and checking apparatus for rubber element outline |
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| KR20150054185A (en) | 2015-05-20 |
| MY186620A (en) | 2021-07-30 |
| CN104634263A (en) | 2015-05-20 |
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