CN106708113A - Multilayer registration control system and method for flexible tag coiling recombination - Google Patents
Multilayer registration control system and method for flexible tag coiling recombination Download PDFInfo
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- CN106708113A CN106708113A CN201710063587.4A CN201710063587A CN106708113A CN 106708113 A CN106708113 A CN 106708113A CN 201710063587 A CN201710063587 A CN 201710063587A CN 106708113 A CN106708113 A CN 106708113A
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D15/00—Control of mechanical force or stress; Control of mechanical pressure
- G05D15/01—Control of mechanical force or stress; Control of mechanical pressure characterised by the use of electric means
Abstract
The invention discloses a multilayer film registration control system and method for flexible RFID tag coiling recombination, and the method comprises the steps: (a), forming the system through a feeding unit, a recombination unit, and a material receiving unit; (b), inputting technological reference values: tag step, working tension and tension boundary; (c), enabling a plurality of sensors to cooperatively detect the registration deviation of a multilayer film in a movement feeding direction according to the triggering position relation, building a tension and registration deviation relation model, and converting the registration deviation into a tension adjustment variable; (d), synchronizing the feeding speed of the multilayer film under the target tension in a mode of tension-position-speed closed loop control, correcting the registration deviation, and carrying out the recombination; (e), building a feeding and material receiving coiling diameter algorithm, adjusting the torque output of a driver according to the changes of a coiling diameter, and guaranteeing the constant-tension operation of material feeding and receiving. The method can achieve the high-speed and high-precision registration requirements of the multilayer film under the condition of a controllable tension, and is especially suitable for the preparation of a flexible RFID tag recombination product.
Description
Technical field
The invention belongs to RFID complex technique field, more particularly, to one kind towards flexible RFID label
Winding compound multilayer film alignment control system and method.
Background technology
RFID label tag be combined be flip-chip bonding later process, collect coiled intermediate layer Inlay and carry pattern
Lower membrane and the process that is combined by alignment of upper layer film, form electronic tag of different shapes.
Wherein, the multilayer alignment and material retractable constant tensile control in tag motion direction are key technologies in recombination process.Print
Brush precision, material, feed rolls speed difference and tension fluctuation can all influence alignment effect, particularly, due to Inlay and base stock
Obvious with the difference of facial tissue Material texture, the deformation extent for equal tension is different, while tension force interacts between multilayer, very
Small tension fluctuation will result in alignment dislocation.Traditional method, in order to avoid inter-laminar tension interference and the unmatched shadow of material
Ring, once-combined with base stock using Inlay cutting embedded modes then secondary with facial tissue compound, although this method reduces opens
Power controls difficulty, but is the increase in Inlay cuttings and synchronous shift module, realizes that difficulty and cost are also greatly improved.It is another
Using similar multilayer film direct combination pattern, after camera vision system detects registration error, registration error is corresponded to method
Wherein one layer charging is aligned by compensating this section of deviation to the position deviation of roller with another tunic.In this method, tension force conduct
, there is tension force beyond critical value in Indirect method amount, it is impossible to the tension variation after effective anticipation compensation position deviation, easily causes film pine
Situations such as relaxing or break, it is impossible to for multilayer film high speed compound.Control mode on material retractable, generally using magnetic powder cluth
With brake form, response speed is undesirable.
The content of the invention
For the disadvantages described above or Improvement requirement of prior art, wound towards flexible RFID label the invention provides one kind
Compound multilayer film alignment control system and method, wherein, detected by sensor, obtain a series of compound register partial differences, open
Force data and variation tendency, with reference to the given parameters and control algolithm of input, automatically adjust tension force and reach registration requirements, its feature
It is that the control system is constituted to be included：
(a) intermediate layer discharging unit (1), by Inlay dispensing shafts (11), the detection of Inlay blowings linear speed idler roller and (41)
Inlay feeds S rollers (21) compositions；
(b) lower membrane discharging unit (2), by lower membrane dispensing shaft (12), lower membrane blowing linear speed detect idler roller (42), under
Tunic feeds S rollers (22), lower membrane rewinding linear speed and detects idler roller (45) and lower membrane collecting shaft (15) composition；
(c) upper layer film discharging unit (3), by upper layer film dispensing shaft (13), upper layer film blowing linear speed detect idler roller (43), on
Tunic feeds S rollers (23), upper layer film rewinding linear speed and detects idler roller (44) and upper layer film collecting shaft (14) composition；
(d) once-combined unit (4), it is inclined by Inlay tension-sensing rollers (51), lower membrane tension-sensing roller (52), Inlay
Difference detection sensor (61) and lower membrane deviation detection sensor (62), once-combined pressure roller (31), once-combined rear Inlay sets
Quasi- detection sensor (64) and once-combined rear lower membrane alignment detection sensor (63) composition；
(e) secondary recombiner unit (5), by upper layer film tension-sensing roller (53), upper layer film deviation detection sensor (65), two
Secondary composite press roller (32), secondary compound rear upper layer film alignment detection sensor (66) and secondary compound rear lower floor's composite membrane alignment inspection
Survey sensor (63) composition；
F () finished product receiving unit (6), detects that idler roller (46) and finished product are received by compound rewinding S rollers (24), finished product rewinding linear speed
Material axle (16) composition；
System detects that wherein sensor (64) is both as once using color sensor as separate-blas estimation and composite effect
Inlay alignment effect detections after compound, while the lower floor's composite membrane separate-blas estimation after completion is once-combined, separate-blas estimation collection number
According to control computing is participated in, alignment detection gathered data is only used as checking alignment effect；
As it is further preferred that the method comprises the following steps：
Step one, is input into relevant alignment technological parameter, including：Label step pitch L, lower floor's layer tension setting value and border
Value, tension force setting F1S, allow minimum tension F1L, allow maximum tension F1H, intermediate layer Inlay tension force setting value and boundary value,
Power sets F2S, allow minimum tension F2L, allow maximum tension F2H, upper strata layer tension setting value and boundary value, tension force setting F3S、
Allow minimum tension F3L, allow maximum tension F3H；
Step 2, alignment detection data processing method, multilayer film is decomposed into the location comparison mode between two membranes, color
Sensor detects a wherein layer pattern Mark, records wherein one layer charging S roller motor current encoders position P1, wait in addition
One layer of MARK triggering, records same charging S roller motor current encoders position P2, the spacing distance Δ between two membranes MARK
P=P2-P1, it is worth on the basis of MARK spacing distance Δs P during by two membranes alignment, the spacer that each collection period is obtained thereafter
From being Δ P1、ΔP2…ΔPk, Δ PkSpacing distance between the two membranes MARK detected for kth；Corresponding register partial difference
It is Δ e1=Δ P1-ΔP、Δe2=Δ P2-ΔP…Δek=Δ Pk- Δ P, Δ ekFor be calculated the kth sampling period when
The intermembranous register partial difference of two-layer；
Step 3, using deviation-tension force transfer algorithm formula and boundary condition, by the intermembranous register partial difference Δ e of two-layerkTurn
Each tunic tension adjustment amount Δ F (k) is changed to, wherein, the tension adjustment amount of two membranes is equal to Δ F (k), and for RFID label tag
Compound, intermediate layer Inlay limits Tensity size≤20N.m, tension fluctuation≤± 10%, this layer of tension force due to binding chip
Adjustment amount is forced to be set as Δ F (k)=0, initial to set tension force FS=10N.m, using constant tensile control；
Step 4, using tension force-position-speed control method, S roller motors and finished product rewinding is fed by changing monofilm
The sync bit and speed of S rollers, the tension force between charging S rollers and composite press roller change, and the tunic is produced small drawing
Deformation is stretched, the pattern step pitch of two membranes becomes inconsistent due to the result of tension adjustment in same length, by constantly compound
And time integral, the two-layer film figure relative distance after being combined has significant change, to reach the purpose of alignment；
Step 5, material retractable is compensated using coil diameter, servo torque control mode, by measuring material retractable linear speed indirectly, with
Relation between rotating speed is calculated current coil diameter, according to the principle that tension force is constant, the output of real-time update servo torque；
As it is further preferred that tension force-position-speed control method preferably use drivers velocity pattern, position and
Tension force planned and realized all in control card, in original position closed loop servo-drive system, by virtual one in control card
Power axis channel, associates with the superposition of position ring passage, is built into the Fourth Ring closed-loop control system with tension force as outer shroud；Wherein open
Power set-point F (k) feeds back F with tension axiseK () exports S by tension servo closed loopf(k), as the input variable of position ring, by
It is a holding process for non-zero-speed in tension stability process, tension link exports SfK () makees Integral Processing before the ring of in-position；
Control weight factor delta, physical location ring input S are introduced simultaneouslyS＇, SSRepresent that the position of rewinding S rollers gives, other each layer charging S
Roller gives identical with rewinding S rollers position, ensures that input is consistent in position control, and δ weight factors are represented in four loop systems,
Power ring and the shared adjustment proportion of position ring, tension adjustment is difficult too fast, δ=0.1~0.15 in the system；
As it is further preferred that in step 5, the device of measurement material retractable coil diameter includes optoelectronic switch and code indirectly
Disk, there is N number of aperture on code-disc, be coaxially fixed on idler roller outer ring, when aperture is by optoelectronic switch, optoelectronic switch output letter
Number.
In general, possess following compared with prior art, mainly by the contemplated above technical scheme of the present invention
Technological merit：
1st, by alignment detection sensor rational deployment, using compound preceding detection and calculation control method, can be in two-layer
Registration error is just judged and corrects before film bonding in advance, it is ensured that the alignment precision after compound；
2nd, system realizes that blowing and recombination process are separated by the configuration charging S rollers per tunic, and material retractable tension force is opened with compound
Power is separate, and material retractable compensates output identical tension, composite log tension force and registration error and charging S roller sync bits by coil diameter
Put relevant with speed, reduce whole system control object, do not interfere with each other, run more stable；
3rd, triggered by using alignment detection sensor, software reads the mode of encoder values, be spaced with acquisition time, then
Compared with the method that speed is scaled position together, data are more accurate and direct；
4th, the method associated with tension adjustment amount by register partial difference, is combined multilayer film alignment and resolves into multiple two membranes
Between recombination process, as long as setting suitable strain boundary condition, the tension force of adjust automatically two-layer or any one tunic can
To realize accurate registration, wherein one layer can be run with identical tension, be particularly suitable for RFID it is compound in, it is middle Inlay layers
Requirement to tension fluctuation；
5th, additionally, by tension force-position-speed Fourth Ring close-loop control mode, tension force is directly acted in servo loop, stabilization
On the basis of response speed faster, be capable of achieving high speed, high-precision registration requirements of the multilayer film under controllable tension, especially fit
With the preparation process of flexible RFID label joint product.
Brief description of the drawings
Fig. 1 is to constitute schematic diagram according to the system of the preferred embodiment of the present invention；
Fig. 2 is the tape coil diameter detection device schematic diagram for being shown as the preferred embodiment for the present invention；
Fig. 3 is the multilayer film alignment control principle block diagram for being shown as the preferred embodiment for the present invention；
Fig. 4 is according to the oriented multilayer film alignment control system and method process chart constructed by the present invention.
Specific embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, it is right below in conjunction with drawings and Examples
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.As long as additionally, technical characteristic involved in invention described below each implementation method
Not constituting conflict each other can just be mutually combined.
Fig. 1 is to constitute schematic diagram according to the system of the preferred embodiment of the present invention, is divided into six units, wherein, intermediate layer
Discharging unit (1), by Inlay dispensing shafts (11), Inlay blowings linear speed detection idler roller and (41) Inlay charging S roller (21) groups
Into；Lower membrane discharging unit (2), is fed S rollers (22), lower membrane rewinding linear speed and is detected by lower membrane dispensing shaft (12), lower membrane
Idler roller (45) and lower membrane collecting shaft (15) are constituted；Upper layer film discharging unit (3), is put by upper layer film dispensing shaft (13), upper layer film
Stockline speed detection idler roller (43), upper layer film feed S rollers (23), upper layer film rewinding linear speed and detect idler roller (44) and upper layer film collecting shaft
(14) constitute；Once-combined unit (4), by Inlay tension-sensing rollers (51), lower membrane tension-sensing roller (52), Inlay deviations
Detection sensor (61) and lower membrane deviation detection sensor (62), once-combined pressure roller (31), once-combined rear Inlay alignments
Detection sensor (64) and once-combined rear lower membrane alignment detection sensor (63) composition；Secondary recombiner unit (5), by upper strata
Layer tension measuring roll (53), upper layer film deviation detection sensor (65), secondary composite press roller (32), secondary compound rear upper strata Membrane cover
Quasi- detection sensor (66) and secondary compound rear lower floor's composite membrane alignment detection sensor (63) composition；Finished product receiving unit (6),
Detect that idler roller (46) and finished product collecting shaft (16) are constituted by compound rewinding S rollers (24), finished product rewinding linear speed；System is passed using color
Sensor detects that wherein sensor (64) is both examined as once-combined rear Inlay alignments effect as separate-blas estimation and composite effect
Survey, while the lower floor's composite membrane separate-blas estimation after completion is once-combined, the participation control computing of separate-blas estimation gathered data, alignment inspection
Gathered data is surveyed to be only used as checking alignment effect；
The course of work of system is as shown in figure 1, lower membrane feeds S rollers by lower membrane dispensing shaft (12) through lower membrane
(22) and after lower membrane blowing linear speed detects idler roller (42) it is divided into adhesive sticker base stock and surface with glue paper, base stock passes through lower membrane rewinding
Roller (15) is collected, and lower membrane surface with glue paper is put through lower membrane jockey pulley (52) with Inlay dispensing shafts (11), Inaly is also passed through
Stockline speed detection idler roller (41), the intermediate layer Inlay of Inaly chargings S rollers (21) are combined at once-combined pressure roller (31) place, once
Composite membrane is compound at secondary composite press roller (32) place with upper layer film surface with glue paper again, eventually passes through compound rewinding S rollers (24) traction,
Detect that idler roller (46) and finished product collecting shaft (14) complete joint product and collect by finished product rewinding linear speed；Whole process is not due to having
Middle transition device, simple structure, but multilayer film it is continuous compound exist inter-laminar tension interfere with each other, direct compensation alignment it is inclined
The problems such as difference causes tension force out of control, it is necessary to be decomposed into individual layer tension force and build tension force and register partial difference relational model.
In view of factors above, as shown in Figure 4, under multilayer film alignment control system of the invention and method mainly include
Row step：
First step, is input into relevant alignment technological parameter, including：Label step pitch L, lower floor's material strip tension force setting value and
Boundary value, tension force setting F1S, allow minimum tension F1L, allow maximum tension F1H, intermediate layer material strip tension force setting value and border
Value, tension force setting F2S, allow minimum tension F2L, allow maximum tension F2H, upper layer material belt tension setting value and boundary value, tension force
Setting F3S, allow minimum tension F3L, allow maximum tension F3H。
Second step, detection data of the continuous acquisition with treatment before compound, is divided into alignment detection data and tension data,
Force data directly applies to servo closed loop as tension link feedback, while being used for tension force alarm decision condition；Alignment detection data
Can not directly be obtained from color sensor detection signal, concrete numerical value is conversed with reference to code device signal in control system.
Specifically, trigger signal is produced when lower membrane deviation detection sensor (62) detects pattern Mark, on signal
Rise along when read now correspond to lower membrane charging S rollers (22) encoder values P1, then wait intermediate layer Inlay separate-blas estimations to pass
The detection trigger signal of sensor (61), when signal rising edge is produced, equally reads the volume of same lower membrane charging S rollers (22)
Code device value P2, the spacing distance Δ P=P between two membranes2-P1, it is worth on the basis of spacing distance Δ P during by two membranes alignment, its
The spacing distance that each collection period is obtained afterwards is Δ P1、ΔP2、…ΔPk, Δ PkThe two membranes MARK detected for kth it
Between spacing distance, corresponding register partial difference be Δ e1=Δ P1-ΔP、Δe2=Δ P2-ΔP、…Δek=Δ Pk- Δ P, Δ
ekFor be calculated the kth sampling period when the intermembranous register partial difference of two-layer；Similarly, it is secondary it is compound in, the inspection of upper layer film deviation
Survey and read upper layer film charging S when sensor (65), once-combined rear Inlay alignments detection sensor (64) detect MARK respectively
Roller (23) encoder values, secondary compound register partial difference is drawn using the method in once-combined.
Third step, register partial difference value is reflected using tension adjustment amount, and PID model is passed through using specific register partial difference value
The tension value for needing adjustment is converted to, directly control Tensity size realizes register partial difference amendment.Pressed according to each tunic material difference
Empirically determined, in embodiment, RFID 79mm wide, Inlay are PET film, and the upper and lower film is respectively 80g art papers
With 60g lattice Racine release liners, corresponding parameter, the upper and lower layer tension border is the same, FH=80N, FL=5N, interlayer film
FH=FL=10N, upper layer film FS=50N, lower membrane FS=30N；
Preferably, interlayer film strain boundary condition is identical with setting value assignment, and tension adjustment amount forces to be set as Δ F
K ()=0, is considered based on process conditions, intermediate layer Inlay binding chips, and larger tension fluctuation destructible chip is on a pet film
Adhesion property, the compound yields of influence label, process conditions limitation Tensity size≤20N.m, tension fluctuation≤± 10%, because
This, initial setting tension force FS=10N.m, using constant tensile control, alignment can be equally met only by lower floor's tension adjustment
It is required that；
Four steps, the tension adjustment value that the register partial difference according to detection is converted passes through tension force-position-speed servo ring control
Tension force processed reaches target set point, and this process feeds S rollers and performs object as final with each layer, by servo-drive system acceleration and deceleration
System, it is synchronous with compound rewinding S roller speeds under goal tension.
Such as Fig. 3, according to the preferred embodiment for the present invention multilayer film alignment control principle block diagram shown in, whole system is receiving
Material S rollers (24) is reference object, and drive roll is drawn as compound material band, the position loop system for possessing stabilization, with given position
SSOperation, other each layer charging S roller supplying positions are likewise provided as SS, synchronized relation is set up under primary condition；In recombination process,
First, lower floor and intermediate layer deviation detection sensor detect the register partial difference between two-layer jointly, are converted to by step 3
Tension adjustment amount Δ F (k) of monofilm, two membranes tension adjustment value can be equally, it is also possible to is set to 0, profit wherein one layer
With strain boundary condition FH、FLWith tension force setting value FS, real-time strain set-point F (k) is calculated, tension adjustment value is set in 0
Interbed, given tension value F (k) is consistently equal to setting value FS；Thereafter, two membranes given tension value F (k) feed back F with tension axise(k)
S is exported by tension servo closed loopf(k), as the input variable of position ring, because tension stability process is a non-zero-speed
Holding process, tension link output SfK () makees Integral Processing before the ring of in-position；Control weight factor delta, actual bit are introduced simultaneously
Put ring input SS, SSRepresent that the position of rewinding S rollers gives, δ weight factors are represented in four loop systems, tension link and position ring institute
Adjustment proportion is accounted for, tension adjustment is difficult too fast, δ=0.1~0.15 in the system, finally, controlled by position-speed ring, it is real
Existing speed adjustment；Equally, the composite membrane after once-combined completes secondary compound with upper layer film using identical method and step.
While compound, material retractable system is also run simultaneously, is calculated jointly by code-disc detection, encoder numerical value
Real-time coil diameter D；As shown in Fig. 2 according to the tape coil diameter detection device schematic diagram of the preferred embodiment for the present invention, 401 fix for idler roller
Flange, 403 is correlation type optoelectronic switch, and table top is installed on together with flange, and 402 is code-disc, has N number of aperture on code-disc, coaxially
It is fixed on 404 idler roller outer rings, in recombination process, material strip drives idler roller and code-disc rotation, when aperture is by optoelectronic switch, light
Electric switch output signal.
5th step, using the alignment detection sensor after compound, detect it is once-combined after and it is secondary it is compound after alignment
Effect, shows as early warning, is achieved in the preparation process of flexible RFID label joint product.
As it will be easily appreciated by one skilled in the art that the foregoing is only presently preferred embodiments of the present invention, it is not used to
The limitation present invention, all any modification, equivalent and improvement made within the spirit and principles in the present invention etc., all should include
Within protection scope of the present invention.
Claims (4)
1. a kind of that compound multilayer alignment control system is wound towards flexible label, wherein material volume is led through unwinding device, charging S rollers
Recombination region is caused, it is after interlayer film and lower membrane are combined then compound with upper layer film, during MULTILAYER COMPOSITE, each tunic pattern
Dynamic alignment alignment is needed in direction of feed, meanwhile, composite finished product and adhesive sticker base stock are collected by material collecting device, and its feature exists
In the control system is constituted to be included：
A () intermediate layer discharging unit (1), is entered by Inlay dispensing shafts (11), Inlay blowings linear speed detection idler roller and (41) Inlay
Material S rollers (21) composition；
B () lower membrane discharging unit (2), idler roller (42), lower membrane are detected by lower membrane dispensing shaft (12), lower membrane blowing linear speed
Charging S rollers (22), lower membrane rewinding linear speed detect idler roller (45) and lower membrane collecting shaft (15) composition；
C () upper layer film discharging unit (3), idler roller (43), upper layer film are detected by upper layer film dispensing shaft (13), upper layer film blowing linear speed
Charging S rollers (23), upper layer film rewinding linear speed detect idler roller (44) and upper layer film collecting shaft (14) composition；
D () once-combined unit (4), is examined by Inlay tension-sensing rollers (51), lower membrane tension-sensing roller (52), Inlay deviations
Survey sensor (61) and lower membrane deviation detection sensor (62), once-combined pressure roller (31), once-combined rear Inlay alignments inspection
Survey sensor (64) and once-combined rear lower membrane alignment detection sensor (63) composition；
(e) secondary recombiner unit (5), by upper layer film tension-sensing roller (53), upper layer film deviation detection sensor (65), secondary multiple
Combined pressure roller (32), secondary compound rear upper layer film alignment detection sensor (66) and secondary compound rear lower floor's composite membrane alignment detection are passed
Sensor (63) is constituted；
F () finished product receiving unit (6), idler roller (46) and finished product collecting shaft are detected by compound rewinding S rollers (24), finished product rewinding linear speed
(16) constitute；
System detects that wherein sensor (64) is both as once-combined using color sensor as separate-blas estimation and composite effect
Inlay alignments effect detection afterwards, at the same complete it is once-combined after lower floor's composite membrane separate-blas estimation, separate-blas estimation gathered data ginseng
With control computing, alignment detection gathered data be only used as check alignment effect.
2. the multilayer alignment control method of system described in claim 1 is based on, it is characterised in that the method comprises the following steps：
Step one, is input into relevant alignment technological parameter, including：Label step pitch L, lower floor's layer tension setting value and boundary value,
Tension force sets F1S, allow minimum tension F1L, allow maximum tension F1H, intermediate layer Inlay tension force setting value and boundary value, tension force
Setting F2S, allow minimum tension F2L, allow maximum tension F2H, upper strata layer tension setting value and boundary value, tension force setting F3S, permit
Perhaps minimum tension F3L, allow maximum tension F3H；
Step 2, alignment detection data processing method, multilayer film is decomposed into the location comparison mode between two membranes, color sensing
Device detects a wherein layer pattern Mark, records wherein one layer charging S roller motor current encoders position P1, wait other one layer
MARK is triggered, and records same charging S roller motor current encoders position P2, the spacing distance Δ P=between two membranes MARK
P2-P1, it is worth on the basis of MARK spacing distance Δs P during by two membranes alignment, the spacing distance that each collection period is obtained thereafter is
ΔP1、ΔP2…ΔPk, Δ PkSpacing distance between the two membranes MARK detected for kth；Corresponding register partial difference is Δ
e1=Δ P1-ΔP、Δe2=Δ P2-ΔP…Δek=Δ Pk- Δ P, Δ ekFor be calculated the kth sampling period when two-layer
Intermembranous register partial difference；
Step 3, using deviation-tension force transfer algorithm formula and boundary condition, by the intermembranous register partial difference Δ e of two-layerkBe converted to
Each tunic tension adjustment amount Δ F (k), wherein, the tension adjustment amount of two membranes is equal to Δ F (k), and multiple for RFID label tag
Close, intermediate layer Inlay limits Tensity size≤20N.m due to binding chip, and tension fluctuation≤± 10%, this layer of tension force is adjusted
Whole amount pressure is set as Δ F (k)=0, tension force F (k)=10N.m is given, using constant tensile control；
Step 4, using tension force-position-speed control method, S roller motors and finished product rewinding S rollers is fed by changing monofilm
Sync bit and speed, the tension force between charging S rollers and composite press roller changes, and the tunic is produced small stretching shape
Become, the pattern step pitch of two membranes becomes inconsistent due to the result of tension adjustment in same length, by it is constantly compound and when
Between accumulate, it is compound after two-layer film figure relative distance have significant change, to reach the purpose of alignment；
Step 5, material retractable is compensated using coil diameter, servo torque control mode, by measurement material retractable linear speed indirectly, with rotating speed
Between relation be calculated current coil diameter, according to the principle that tension force is constant, the output of real-time update servo torque.
3. multilayer alignment control method as claimed in claim 2, it is characterised in that tension force-position-speed control method is used
Drivers velocity pattern, position and tension force planning are realized all in control card, in original position closed loop servo-drive system, passed through
A virtual tension force axis channel in control card, associates with the superposition of position ring passage, is built into four with tension force as outer shroud
Ring closed-loop control system.
4. multilayer alignment control method as claimed in claim 2, it is characterised in that in step 5, material retractable is measured indirectly
The device of coil diameter includes optoelectronic switch and code-disc, there is N number of aperture on code-disc, is coaxially fixed on idler roller outer ring, when aperture passes through
During optoelectronic switch, optoelectronic switch output signal.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108098846A (en) * | 2017-12-12 | 2018-06-01 | 广州驰立自动化设备有限公司 | One kind prevents composite label delamination splitting label cutting device and its trimscript method |
| CN109178529A (en) * | 2018-09-19 | 2019-01-11 | 浙江美声智能系统有限公司 | The bonding compounding machine of cloth-bag type electronic intelligent label |
| CN109240224A (en) * | 2018-08-17 | 2019-01-18 | 张家港康得新光电材料有限公司 | A kind of rewinding method, apparatus, equipment and storage medium |
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