CN107297883B - Film thickness measuring auxiliary locator and its synchronous method with film thickness detector - Google Patents
Film thickness measuring auxiliary locator and its synchronous method with film thickness detector Download PDFInfo
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- CN107297883B CN107297883B CN201710429650.1A CN201710429650A CN107297883B CN 107297883 B CN107297883 B CN 107297883B CN 201710429650 A CN201710429650 A CN 201710429650A CN 107297883 B CN107297883 B CN 107297883B
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- 238000000034 method Methods 0.000 title claims abstract description 28
- 230000001360 synchronised effect Effects 0.000 title claims abstract description 16
- 238000012545 processing Methods 0.000 claims abstract description 10
- 238000004458 analytical method Methods 0.000 claims abstract description 9
- 238000005520 cutting process Methods 0.000 claims description 74
- 230000002123 temporal effect Effects 0.000 claims description 3
- 238000005266 casting Methods 0.000 claims description 2
- 239000004033 plastic Substances 0.000 abstract description 5
- 229920003023 plastic Polymers 0.000 abstract description 5
- 239000010408 film Substances 0.000 description 56
- 238000010586 diagram Methods 0.000 description 14
- 238000004519 manufacturing process Methods 0.000 description 10
- 230000008569 process Effects 0.000 description 9
- 239000011127 biaxially oriented polypropylene Substances 0.000 description 8
- 229920006378 biaxially oriented polypropylene Polymers 0.000 description 8
- 238000001816 cooling Methods 0.000 description 5
- 238000001514 detection method Methods 0.000 description 5
- 238000001125 extrusion Methods 0.000 description 4
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 238000009966 trimming Methods 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 1
- 210000002469 basement membrane Anatomy 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000002457 bidirectional effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
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- 229920001155 polypropylene Polymers 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/92—Measuring, controlling or regulating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/001—Combinations of extrusion moulding with other shaping operations
- B29C48/0023—Combinations of extrusion moulding with other shaping operations combined with printing or marking
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/07—Flat, e.g. panels
- B29C48/08—Flat, e.g. panels flexible, e.g. films
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/92609—Dimensions
- B29C2948/92647—Thickness
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92819—Location or phase of control
- B29C2948/92857—Extrusion unit
- B29C2948/92904—Die; Nozzle zone
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2007/00—Flat articles, e.g. films or sheets
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Shaping Of Tube Ends By Bending Or Straightening (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The invention discloses a kind of film thickness measuring auxiliary locator and its with the synchronous method of film thickness detector, film thickness measuring auxiliary locator includes acquisition module, analysis and processing module, synchronization module, and intensity adjustment module, focusing module, drive module and executing agency, the imprint head of unit and extruder die hook bolt are marked in executing agency fixed positional relationship.Then it is analyzed and processed the film profile thickness curve of calibrator output by marking out V-arrangement or the U-shaped breach marking on the predeterminated position of slab, diebolt is accurately positioned by capture notch extreme point.It is synchronous with calibrator that the present invention can fast implement marking unit, and by synchronizing the requirement that can be reduced to marking amount, the label obtained after auxiliary positioning has the film profile thickness value number of diebolt position to set, provides real-time foundation for plastics thickness control.
Description
Technical field
The present invention relates to film fabrication techniques fields, and in particular to a kind of film thickness measuring auxiliary locator and its and film thickness
The synchronous method of detector.
Background technique
BOPP film, that is, bidirectional stretching polypropylene film be as obtained by biaxial tension, it be by physics, chemistry and
The plastic product that the means specially-shaped such as machinery is process.BOPP production line is non-linear, a time-varying, the complexity postponed greatly
System.Its process flow specifically include that raw material melting, extrusion, cooling and shaping, longitudinal stretching, cross directional stretch, trimming, at corona
It manages, batch.
Physical mechanical property such as tensile strength, elongation at break, turbidity, gloss as BOPP film product quality indicator
Deng because depending mainly on the attribute of material itself, so all easily reaching requirement.And as the main of re-workability and service performance
Con trolling index, i.e. film gauge variation and Film Average Thickness deviation, then depend mainly on the manufacturing process of film.Even if manufacture
For plastics thickness control in the deviation range that standard allows, but after the winding of thousands of tunics is accumulative, thickness deviation is big in the process
Position on may form the bad defects such as hoop, sudden and violent muscle or chase, the reprocessing that these defects directly influence user uses.
So BOPP film production in most critical quality between topic be how to improve with stabilizing films thickness and precision, it is also exactly this thin
Film thickness precision just directly influences the use value of film, determines the commodity value of film.
For plastics thickness control based on the real-time detection to thickness, it is logical that such as application No. is 2014201577223 Chinese patents
After crossing X-ray scanning acquisition film thickness, two PID regulators are respectively adopted to carry out the control of the horizontal and vertical thickness of film
System, similar method is also used application No. is 2007201517097 Chinese patent, is pointed out simultaneously, in order to obtain thickness
Uniform film, it is necessary to realize that thickness measurements and measurement position are accurately positioned.Application No. is 2014204575910 China
Patent then carries out the alignment of basement membrane by deckle.
Currently, carrying out the corresponding common method of bolt to the thickness data of calibrator output, there are mainly two types of, first is that
It crosses and marks at different bolts, corresponding place is then found on calibrator scanning support, to determine the position of bolt；Two
It is also to measure the developed width of film web while detecting section with calibrator, calculate film referring to the width of die head
Necking down amount, and then diebolt is corresponded to.Both methods is required to manually carry out auxiliary mark according to practical condition
Know, measure and judge, artificial judgment is not only inaccurate, can not also stablize.Due to lacking the continuous accurate positionin to film profile,
The thickness control effect of film and the quality of produced product suffer from influence.For this reason, it may be necessary to solve automatically defeated to calibrator
Film profile thickness curve out carries out the problem of bolt positioning.
Summary of the invention
In view of this, the purpose of the present invention is to provide a kind of dresses that calibrator can be assisted to carry out thickness measuring positioning to bolt
Set, after the inscribing inscriptions on the slab predeterminated position of extrusion molding, to calibrator output film profile thickness curve into
Row acquisition and analysis processing, obtain stamp positions so that extruder die hook bolt be accurately positioned and determine that diebolt exists
Coordinate on thickness curve provides for Plastics Thickness Control System and improves accurate feedback signal.
The technical solution of the invention is as follows, provides a kind of film thickness measuring auxiliary locator with flowering structure comprising
Acquisition module, analysis and processing module, synchronization module and intensity adjustment module, focusing module, drive module and executing agency,
The executing agency includes a marking unit, and the marking unit is arranged in for thin by what is squeezed out from extruder
Film raw material melt is attached to the front of the main air knife on sharp cooling roll；The acquisition module obtains film profile thickness curve from calibrator
Data, after being handled from analysis and processing module to intensity adjustment module, focusing module and by synchronization module to drive module
Command information is issued, by the movement of the intensity adjustment module, focusing module and drive module control executing agency, makes to mark unit
V-arrangement or the U-shaped breach marking are marked out on the predeterminated position for the slab being cooled and shaped after being squeezed out by extruder.
Preferably, the marking of the marking unit marking is made of the different rectangle cutting of multiple depth, the synchronization
Module provides the temporal information that marking starts for drive module, so that all rectangle cuttings can be detected by calibrator
It arrives.
Preferably, the marking unit include two its imprint heads respectively with extruder die head both ends bolt location phase
The marking module being fixedly connected, the marking module use laser beam marking module.
Preferably, the marking unit includes a guide rail parallel with extruder die head lip and a die impression
Block, the marking module includes the imprint head that can be moved along the guide rail, and have on the guide rail multiple has with diebolt
The anchor point of fixed positional relationship, the marking module use laser beam marking module.
Preferably, it is described marking unit marking marking depth capacity by marking slab thickness 0.05 to 0.1
Times.
Another technical solution of the invention is to provide a kind of film thickness measuring auxiliary locator and film thickness detector
Synchronous method, which is characterized in that the film thickness measuring auxiliary locator includes acquisition module, analysis and processing module, synchronization module,
And intensity adjustment module, focusing module, drive module and executing agency, the executing agency include a marking unit, institute
It states and marks out V-arrangement or the U-shaped breach marking, institute on the predeterminated position for the slab that marking unit is cooled and shaped after being squeezed out by extruder
It states the marking to be made of the different rectangle cutting of multiple depth, can be detected by calibrator to make all rectangle cuttings
It arrives, the synchronization module uses following steps to provide marking for the drive module in the film thickness measuring auxiliary locator to start
Temporal information:
S1 the imprinting period that single rectangle cutting) is set according to the calibrator scan period, set the width of cutting, length and
The cutting number M of single Transverse notch group randomly chooses t0 value；
S2) initial station prepares, and first cutting is marked since the t0 moment, records start time t0=t；
S3) groove depth by increment increase, according to depth value control intensity adjustment module, focusing module, with a upper work
Rectangle cutting is marked on the horizontal and vertical upper adjacent new station in position；
S4 do you) judge whether M cutting has marked to finish? if it is next step s5 is turned, otherwise turn s3；
Does s5 the section curve for) obtaining calibrator, judge whether to detect cutting? if it is turn next step s6, otherwise etc.
To；
S6 do you) judge in cutting group's imprinting period Tq, if only detect the cutting of two different depths? if it is
Then turn next step s7, otherwise turns s8；
S7 the depth value for) extracting two cuttings being consecutively detected, judges whether the first groove depth was greater than for the second quarter
Groove depth? if it is, the marking start time of each cycle is shifted to an earlier date: otherwise t0=t0-t1 starts the marking of each cycle
Moment postpones: t0=t0+t2, wherein t1 and t2 are respectively less than Tq/2；Then, s2 is gone to step, the quarter for starting a cutting group is repeated
Print；
S8 it) synchronously completes, terminates.
Preferably, groove depth is linearly increasing in the step s3, increase an identical amount every time, and make maximum
Groove depth by 0.05 to 0.1 times of marking slab thickness.
Preferably, groove depth pushes down the non-linear increase of parabola in the step s3, and make maximum groove depth
By 0.05 to 0.1 times of marking slab thickness.
Preferably, assuming that the depth of detected cutting corresponds to p-th in M sequence, then the time mentions
Preceding amount t1 and the amount of postponing t2 can be calculated as follows:
Using the solution of the present invention, compared with prior art, it is online to have the advantage that the present invention is applied to film production
The auxiliary positioning of Thickness sensitivity, by the two or more enterprising with the relatively-stationary predeterminated position of die head bolts at two ends of slab
The marking of row deep trouth, to orient all bolt locations on film profile thickness curve, realizes to measured film thickness position
The automatic accurate positioning set, effectively prevents the influence artificially to judge incorrectly, provides to carry out the control of film thickness consistency
Real-time foundation.It is synchronous with calibrator that the present invention can fast implement marking unit, and can be reduced marking amount by synchronizing.
Detailed description of the invention
Fig. 1 is BOPP technological process of production schematic diagram；
Fig. 2 is the structural schematic diagram of film thickness measuring auxiliary locator of the present invention；
Fig. 3 is that unit and extruder die head partial structural diagram are marked in the present invention；
Fig. 4 is imprint head and periphery partial structural diagram figure in the present invention；
Fig. 5 is inscribing inscriptions schematic diagram in the present invention；
Fig. 6 is cutting group structure schematic diagram in the present invention；
Fig. 7 is rectangle groove structure schematic diagram in the present invention；
Fig. 8 is to mark work flow diagram in the present invention；
Fig. 9 is inscribing inscriptions in the present invention by calibrator detection process schematic diagram；
Figure 10 is synchronization module work flow diagram in the present invention.
Specific embodiment
The preferred embodiment of the present invention is described in detail below in conjunction with attached drawing, but the present invention is not restricted to these
Embodiment.The present invention covers any substitution made in the spirit and scope of the present invention, modification, equivalent method and scheme.
In order to make the public have thorough understanding to the present invention, it is described in detail in the following preferred embodiment of the present invention specific
Details, and the present invention can also be understood completely in description without these details for a person skilled in the art.
The present invention is more specifically described by way of example referring to attached drawing in the following passage.It should be noted that attached drawing is adopted
With more simplified form and using non-accurate ratio, only to facilitate, lucidly aid in illustrating the embodiment of the present invention
Purpose.
As shown in Figure 1, BOPP production is sheet, that is, slab through extrusion molding, slab is again through vertical since raw material melting
It is wide volume film to being opened up thin with cross directional stretch broadening, then carries out trimming and corona etc. in distraction procedure and handle, finally wind
It is subsequent that parent roll is cut and packed by order requirements for big parent roll.Due to thickness product quality is played it is vital
Therefore effect often carries out thickness real-time monitoring to slab and wide film of rolling up respectively with two calibrators in BOPP production, and two
Platform calibrator can externally export the thickness data collection of section, while they are also connected with display to show that slab or wide volume are thin
The profile image of film.Front uses that of slab thickness measuring in pull-out at the beginning of film in two calibrators, until below the
Just pause uses after two calibrators investment.
As shown in Fig. 2, film thickness measuring auxiliary locator 100 of the present invention comprising acquisition module 110, analysis processing mould
Block 120, synchronization module 130 and intensity adjustment module 140, focusing module 150, drive module 160 and executing agency 170.
In conjunction with shown in Fig. 2 and Fig. 3, film thickness measuring auxiliary locator 100 of the present invention further includes being fixed on rack 200
Bracket 180, the executing agency 170 include a marking unit.The die head of extruder 300 includes upper and lower two lips 310,
Lip 330 is formed between lips, lip opening size is adjusted by transversely arranged heat bolts 320.In the marking unit
There is marking module 171, the marking module 171 uses laser beam marking module, the casting being cooled and shaped after being squeezed out by extruder
V-arrangement or the U-shaped breach marking are marked out on the predeterminated position of piece.
Preferably, the marking module is set as two, their imprint head respectively with die head both ends bolt location phase
It is fixed, it can such as make the bolt centerline at imprint head pedestal or its base position and first or second, both ends along lip
Vertical line is aligned and strictly fixes, and shift its pedestal or its base position cannot in a lateral direction.
Preferably, a marking module can also only be arranged, but setting one is parallel with die lips on bracket 180
Guide rail 190, the imprint head of marking module 171 can have along this guide rail transverse shifting, and on the guide rail and multiple have with diebolt
The anchor point of fixed positional relationship, so as to form a V-arrangement or U-shaped breach print on multiple default lateral positions of slab
Note.
Fig. 4 is imprint head and periphery partial structural diagram figure in the present invention, wherein Fig. 4 a is side view, and Fig. 4 b is positive
View.In conjunction with shown in Fig. 2 to Fig. 4, in BOPP film production line, has after extruder 300 and be cooled and shaped unit 500, wherein wrapping
The modules such as sharp cooling roll 501, main air knife 502 are included, after the melt of extrusion leaves the die head lips of extruder 300, in main air knife 502 etc.
External force under, be attached to rapidly on the sharp cooling roll 501 of low temperature, best bright finish, melt is cooled rapidly and forms solid sheet
That is the front of main air knife 502 is arranged in melt direction of advance in slab, marking module 171.
In conjunction with shown in Fig. 1 and Fig. 4, wide volume film is formed after the traction of slab drawn, during which by calibrator 400 to its into
Row Thickness sensitivity；Acquisition module 110 from calibrator 400 obtain film profile thickness curve data, by analysis and processing module 120 into
Row processing after to intensity adjustment module 140, focusing module 150 and by synchronization module 130 to drive module 160 issue instruct
Information, by the control of the intensity adjustment module 140, focusing module 150 and drive module 160, executing agency 170 is acted, and is marked
Movement of the module 171 based on executing agency 170 is marked in the slab of fast cooling shaping.
Preferably, the marking module 171 can also be using the auxiliary air knife module to match with main air knife.
In conjunction with shown in Fig. 1 and Fig. 5,6,7, the lateral sampling density of the sectional thickness curve of calibrator output is sufficiently high, when
Unit is marked when forming V-arrangement or the parabolical U-shaped breach marking in slab, due to the fixed bit of imprint head pedestal and bolt
Relationship is set as being aligned the central point of the marking along lip vertical line with bolt centerline when marking, acquired module 110 acquires thickness
It writes music line, analysis and processing module 120 will obtain diebolt on curve by extreme value point search to the curve and judgement
Accurate positionin.This positioning is minimum to need two, it is assumed that U1 and the corresponding two positioning endpoints of two bolts of U2 are in thickness song
The horizontal axis coordinate of line is respectively X1 and X2, then can obtain the positioning of other bolts.To the Uk bolt, corresponding horizontal axis is sat
Mark Xk are as follows:
Wherein, Round () is round function.
A module can also be arranged in film thickness measuring auxiliary locator of the present invention, export the institute that above-mentioned treatment process obtains
There is abscissa Xk of the diebolt on thickness curve.
As shown in figure 5, marking overall depth Lz is set as the 0.05 of marked slab thickness by taking the V-notch marking as an example
To 0.1 times.
In order to mark out the marking, disposable formation, or the forming method with multiple stacking can choose.If with one
Secondary property forms method, needs the marking module of relatively high power, and if may continuously make in the marking of same lateral position to slab itself
At some influences.For this purpose, cutting group as shown in FIG. 6 is selected to form method, it is assumed that film is moved down with Vy speed, in cutting group
The cutting marking be moved back and forth with Vx speed, cutting group is formed as the right half part of the V-arrangement marking as illustrated in the drawing,
I.e. cutting group contains N=2k rectangle cutting in total.
In conjunction with shown in Fig. 5~7, width Lx is set as a value, on the sectional thickness curve for making it possible to obtain from calibrator
Enough points are obtained, such as within the scope of Lx, NS=2N point can be sampled out.Preferably, can set Lx as with Lz in phase
With on the order of magnitude.The width dx and depth increments dz of each rectangle cutting are respectively the 1/k of marking overall width Lx and depth Lz,
And its length dy then can choose are as follows:
So that adjacent rectangle cutting is adjacent in the longitudinal direction or partially overlaps, so that synchronizing rear calibrator can continuously detect
To rectangle cutting.
It is illustrated in figure 8 in the present invention and marks work flow diagram, the entire cutting group period is Tq, and calibrator one way is from one side
The time for being moved to another side is equal to the integral multiple of Tq.After system initialization, V-arrangement cutting group is marked since the t0 moment, each
The imprinting period of rectangle cutting is Tr, and Tr=Tq/k.One rectangle cutting of every marking, will judge whether k cutting
Marking finishes, if it is, waiting the arrival in next cutting group period, otherwise, to prepare to mark next time: imprint head resets quasi-
Precise motion module standby, in drive module control executing agency carries out station preparation, the cooperation of intensity adjustment module is marked
The adjustment of power, focusing module change the height of focus point, until marking current rectangle is carved after next imprinting period Tr arrives
Slot.When marking, the motion module of executing agency mobile to film will carry out longitudinal velocity compensation.Mark the marking in slab with
Slab is detected after being drawn by calibrator, and is synchronized by synchronization module.
Since the marking of marking unit marking is made of the different rectangle cutting of multiple depth, in order to enable all these quarters
Slot can be detected by calibrator, and synchronization module is needed to provide the alignment of marking start time for drive module.It is illustrated in figure 9
Inscribing inscriptions are by the schematic diagram of calibrator detection process in the present invention, wherein and Fig. 9 a is the detection in cutting group's Tq period,
Arrow A gives the trailed direction of film in figure；Arrow B is that calibrator moves back and forth signal, and calibrator track such as solid line is rolled over
Shown in line；Two longitudinal solid lines are film edge；Arrow C is that imprint head round-trip is illustrated, in the marked cutting of imprint head
The line of point is as shown in dotted line broken line.In Fig. 9, calibrator one way is equal to 5 times of Tq from the time that one side is moved to another side, real
This multiple can adjust bolt quantity according to die head and carry out preferably when border marks.
As illustrated in fig. 9, when marking unit is not synchronous with calibrator, within each cutting group Tq period, calibrator is only
It can detect two cuttings, be illustrated in figure with circle.
Fig. 9 b is similar with 9a, the difference is that two cutting positions detected by calibrator are different.Fig. 9 c is marking unit
The case where when realizing synchronous with calibrator, the cutting in two cutting groups of head and the tail is detected by calibrator as seen from the figure.
Fig. 9 d, which is that dotted line is past in Fig. 9 a, to be moved down, but the schematic diagram that amount of movement is excessive and beyond Fig. 9 c.
As shown in Figure 10, film thickness measuring auxiliary locator process synchronous with film thickness detector are as follows:
S1 the imprinting period that single rectangle cutting) is set according to the calibrator scan period, set the width of cutting, length and
The cutting number M of single Transverse notch group randomly chooses t0 value；
S2) initial station prepares, and first cutting is marked since the t0 moment, records start time t0=t；
S3) groove depth by increment increase, according to depth value control intensity adjustment module, focusing module, with a upper work
Rectangle cutting is marked on the horizontal and vertical upper adjacent new station in position；
S4 do you) judge whether M cutting has marked to finish? if it is next step s5 is turned, otherwise turn s3；
Does s5 the section curve for) obtaining calibrator, judge whether to detect cutting? if it is turn next step s6, otherwise etc.
To；
S6 do you) judge in cutting group's imprinting period Tq, if only detect the cutting of two different depths? if it is
Then turn next step s7, otherwise turns s8；
S7 the depth value for) extracting two cuttings being consecutively detected, judges whether the first groove depth was greater than for the second quarter
Groove depth? if it is, the marking start time of each cycle is shifted to an earlier date: otherwise t0=t0-t1 starts the marking of each cycle
Moment postpones: t0=t0+t2, wherein t1 and t2 are respectively less than Tq/2；Then, s2 is gone to step, the quarter for starting a cutting group is repeated
Print；
S8 it) synchronously completes, terminates.
During synchronization, unnecessary portion is overlapped and uses close to arrangement, M quarter on longitudinal axis for two adjacent rectangle cuttings
Slot maximum groove depth by 0.05 to 0.1 times of marking slab thickness.
Preferably, the depth of cutting is linearly increasing, increase an identical amount every time, from front after M cutting superposition
It sees to form a linear ramp.
Preferably, the non-linear increase of the depth of cutting, each incrementss gradually reduce, from front after M cutting superposition
It sees to form the slope of falling parabola.
Timing Advance t1 and the amount of postponing t2 can be calculated as follows in step s7:
Where it is assumed that the depth of detected cutting corresponds to p-th in M sequence.
In conjunction with shown in Fig. 9 and Figure 10, when occurring testing result shown in Fig. 9 a in synchronizing process, marked next time
When, it is on the basis of by start time when original in advance, mobile by formula (3) as shown in arrow D in figure, then it is examined next time after marking
The case where Fig. 9 c will occur in survey；But if lead is excessive, then the case where Fig. 9 d will occur.If there is the detection knot of Fig. 9 b
Fruit should then postpone the marking time started as shown in wherein arrow E.
Fig. 9 c is observed it can be found that not needing continuously after realizing that marking unit is synchronous with calibrator
Marking.As shown in connection with fig. 5, after synchronizing, within the single pass scan time of calibrator, it is only necessary to mark a cutting group, i.e.,
A V-arrangement or the U-shaped breach marking are formed in terms of front after the N number of cutting superposition marked, can be achieved with auxiliary positioning purpose.
Film thickness measuring auxiliary locator of the present invention can be accurately positioned diebolt, institute by marking and detection
The label of acquisition has the film profile thickness value number of diebolt position to set, is transferred to controller and carries out film thickness
Degree control, to realize the uniform of film thickness.
In addition to this, although embodiment is separately illustrated and is illustrated above, it is related to the common technology in part, in this field
Those of ordinary skill apparently, can be replaced and integrate between the embodiments, be related to one of embodiment and record is not known
Content, then can refer to another embodiment on the books.
Embodiments described above does not constitute the restriction to the technical solution protection scope.It is any in above-mentioned implementation
Made modifications, equivalent substitutions and improvements etc., should be included in the protection model of the technical solution within the spirit and principle of mode
Within enclosing.
Claims (4)
1. a kind of synchronous method of film thickness measuring auxiliary locator and film thickness detector, which is characterized in that the film thickness measuring is auxiliary
Helping positioning device includes acquisition module, analysis and processing module, synchronization module and intensity adjustment module, focusing module, driving mould
Block and executing agency, the executing agency include a marking unit, and the marking unit is cooled to after being squeezed out by extruder
V-arrangement or the U-shaped breach marking, the marking rectangle cutting group different by multiple depth are marked out on the predeterminated position of the slab of type
At can be detected by calibrator to make all rectangle cuttings, it is described that the synchronization module, which uses following steps,
Drive module in film thickness measuring auxiliary locator provides the temporal information that marking starts:
S1 the imprinting period that single rectangle cutting) is set according to the calibrator scan period, sets width, length and the single of cutting
The cutting number M of Transverse notch group randomly chooses t0 value；
S2) initial station prepares, and first cutting is marked since the t0 moment, records start time t0=t；
S3) groove depth is increased by increment, controls intensity adjustment module, focusing module according to depth value, horizontal with a upper station
To on new station adjacent on longitudinal direction mark rectangle cutting；
S4 do you) judge whether M cutting has marked to finish? if it is next step s5 is turned, otherwise turn s3；
Does s5 the section curve for) obtaining calibrator, judge whether to detect cutting? if it is turn next step s6, otherwise wait for；
S6 do you) judge in cutting group's imprinting period Tq, if only detect the cutting of two different depths? if it is turn
Next step s7, otherwise turns s8；
S7 the depth value for) extracting two cuttings being consecutively detected, judges whether the first groove depth is greater than the second cutting depth
Degree? if it is, the marking start time of each cycle is shifted to an earlier date: t0=t0-t1, otherwise, by the marking start time of each cycle
It postpones: t0=t0+t2, wherein t1 and t2 are respectively less than Tq/2；Then, s2 is gone to step, the marking for starting a cutting group is repeated；
S8 it) synchronously completes, terminates.
2. the synchronous method of a kind of film thickness measuring auxiliary locator and film thickness detector according to claim 1, special
Sign is that groove depth is linearly increasing in the step s3, increases an identical amount every time, and make the maximum groove depth to be
0.05 to 0.1 times of marked slab thickness.
3. the synchronous method of a kind of film thickness measuring auxiliary locator and film thickness detector according to claim 1, special
Sign is that groove depth pushes down the non-linear increase of parabola in the step s3, and makes maximum groove depth to be marked casting
0.05 to 0.1 times of piece thickness.
4. the synchronous method of a kind of film thickness measuring auxiliary locator and film thickness detector according to claim 1, special
Sign is, it is assumed that the depth of detected cutting corresponds to p-th in M sequence, then the Timing Advance t1 and pushes away
Amount t2 can be calculated as follows afterwards:
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
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| CN201710429650.1A CN107297883B (en) | 2017-05-28 | 2017-05-28 | Film thickness measuring auxiliary locator and its synchronous method with film thickness detector |
| CN201910889713.0A CN110722770B (en) | 2017-05-28 | 2017-05-28 | Auxiliary positioning device for film thickness measurement |
| CN201910889712.6A CN110722769B (en) | 2017-05-28 | 2017-05-28 | Synchronization method of auxiliary positioning device for film thickness measurement and thickness gauge |
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| CN201710429650.1A CN107297883B (en) | 2017-05-28 | 2017-05-28 | Film thickness measuring auxiliary locator and its synchronous method with film thickness detector |
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| CN201910889713.0A Division CN110722770B (en) | 2017-05-28 | 2017-05-28 | Auxiliary positioning device for film thickness measurement |
| CN201910889712.6A Division CN110722769B (en) | 2017-05-28 | 2017-05-28 | Synchronization method of auxiliary positioning device for film thickness measurement and thickness gauge |
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| CN107297883B true CN107297883B (en) | 2019-10-08 |
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| CN201910889712.6A Expired - Fee Related CN110722769B (en) | 2017-05-28 | 2017-05-28 | Synchronization method of auxiliary positioning device for film thickness measurement and thickness gauge |
| CN201710429650.1A Expired - Fee Related CN107297883B (en) | 2017-05-28 | 2017-05-28 | Film thickness measuring auxiliary locator and its synchronous method with film thickness detector |
| CN201910889713.0A Expired - Fee Related CN110722770B (en) | 2017-05-28 | 2017-05-28 | Auxiliary positioning device for film thickness measurement |
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| DE102020121364A1 (en) * | 2020-08-13 | 2022-02-17 | Sml Maschinengesellschaft Mbh | Process for the production of a plastic film |
| CN112030368A (en) * | 2020-09-25 | 2020-12-04 | 信泰(福建)科技有限公司 | Production line and production line equipment of melt-blown fabric |
| CN114686835A (en) * | 2022-02-28 | 2022-07-01 | 三明福特科光电有限公司 | Double-color vacuum coating process |
| CN115035522B (en) * | 2022-08-11 | 2022-12-27 | 东声(苏州)智能科技有限公司 | Intelligent identification method and device for character defects of components |
| CN116753851B (en) * | 2023-07-07 | 2024-09-03 | 安庆盛华纸质包装有限公司 | System device and method for measuring thickness of laminated paper film |
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| JPH0957815A (en) * | 1995-08-25 | 1997-03-04 | Tonen Chem Corp | Thickness controlling method for oriented polymer sheet |
| CN104827646A (en) * | 2015-05-20 | 2015-08-12 | 江门市辉隆塑料机械有限公司 | Device and method for regulating longitudinal thickness evenness of extrusion compound film |
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| US4994976A (en) * | 1988-02-17 | 1991-02-19 | Mitsubishi Jukogyo Kabushiki Kaisha | Film thickness controller |
| DE19818519C2 (en) * | 1998-03-27 | 2001-01-25 | Harald Feuerherm | Process for extrusion blow molding of hollow bodies and extrusion head for carrying out the process |
| CN201094009Y (en) * | 2007-06-22 | 2008-07-30 | 北京化工大学 | Full-automatic reciprocating wide breadth X ray thin membrane thickness measuring instrument |
| DE102009033171B4 (en) * | 2009-07-13 | 2016-03-03 | Hosokawa Alpine Ag | Method for controlling the film thickness of stretched tubular films and apparatus for carrying out the method |
| US9561522B2 (en) * | 2011-03-28 | 2017-02-07 | Helmut Knorr | Ultrasonic transmitting and receiving device for thickness and/or grammage measurement |
| US9028951B2 (en) * | 2013-09-10 | 2015-05-12 | Magnetnotes, Ltd. | Magnetic receptive printable media |
| CN103849850A (en) * | 2014-03-26 | 2014-06-11 | 西安工业大学 | Film thickness monitoring method of optical film and irregular film system optical film thickness instrument |
| CN203766002U (en) * | 2014-04-03 | 2014-08-13 | 山东胜通集团股份有限公司 | Online thickness detection control system of polyester optical films |
| CN205272549U (en) * | 2015-12-03 | 2016-06-01 | 重庆互通管道技术设备有限公司 | Extruder wall thickness adjusting device |
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- 2017-05-28 CN CN201910889712.6A patent/CN110722769B/en not_active Expired - Fee Related
- 2017-05-28 CN CN201710429650.1A patent/CN107297883B/en not_active Expired - Fee Related
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0957815A (en) * | 1995-08-25 | 1997-03-04 | Tonen Chem Corp | Thickness controlling method for oriented polymer sheet |
| CN104827646A (en) * | 2015-05-20 | 2015-08-12 | 江门市辉隆塑料机械有限公司 | Device and method for regulating longitudinal thickness evenness of extrusion compound film |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110722770B (en) | 2021-08-13 |
| CN110722769B (en) | 2021-07-09 |
| CN110722770A (en) | 2020-01-24 |
| CN107297883A (en) | 2017-10-27 |
| CN110722769A (en) | 2020-01-24 |
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