CN104859121B - Device and method for controlling flatness of full-width composite material - Google Patents
Device and method for controlling flatness of full-width composite material Download PDFInfo
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- CN104859121B CN104859121B CN201510263846.9A CN201510263846A CN104859121B CN 104859121 B CN104859121 B CN 104859121B CN 201510263846 A CN201510263846 A CN 201510263846A CN 104859121 B CN104859121 B CN 104859121B
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- 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
- B29C48/0021—Combinations of extrusion moulding with other shaping operations combined with joining, lining or laminating
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- 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
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- 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
- B29C48/254—Sealing means
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- 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
- B29C48/28—Storing of extruded material, e.g. by winding up or stacking
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- 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
- B29C48/355—Conveyors for extruded articles
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- 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
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92009—Measured parameter
- B29C2948/92114—Dimensions
- B29C2948/92152—Thickness
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- 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
- B29C2948/92323—Location or phase of measurement
- B29C2948/92438—Conveying, transporting or storage of articles
-
- 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
- B29C2948/92323—Location or phase of measurement
- B29C2948/92447—Moulded article
-
- 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
- B29C2948/9258—Velocity
- B29C2948/926—Flow or feed rate
-
- 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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The invention discloses a device and a method for controlling the flatness of a full-width composite material. The device for controlling the flatness of the full-width composite material comprises a thickness gauge, a probe mounting rack, an extruder, a flatness adjusting mechanism, a PLC (programmable logic controller) and a thin film conveying mechanism, wherein a probe of the thickness gauge is arranged on the surface of extrusion composite films through the probe mounting rack; the flatness adjusting mechanism is arranged on the extruder; the flatness adjusting mechanism, the thickness gauge and the extruder are electrically connected with the PLC respectively; the extrusion composite films are conveyed by the thin film conveying mechanism; a die head of the extruder is arranged above the thin film conveying mechanism. The method for controlling the flatness of the full-width composite material comprises the step as follows: thickness uniformity adjustment of a horizontal cross section of each extrusion composite film, thickness uniformity adjustment of a longitudinal cross section of each extrusion composite film and surface flatness adjustment of the stacked extrusion composite films are performed integrally. According to the device and the method, integrated control of the thickness uniformity adjustment of the horizontal cross section of each extrusion composite film, the thickness uniformity adjustment of the longitudinal cross section of each extrusion composite film and the surface flatness adjustment of the stacked extrusion composite films can be realized, and the product quality is effectively improved.
Description
Technical field
The present invention relates to the manufacturing technology field of flexible packing material, more particularly to a kind of flatness of full width width composite
Control device and method.
Background technology
For extrusion compound package material, the thickness uniformity and flatness control for extruding composite membrane is to affect packaging material
One of key index of performance and cost, but in high-speed production, the average mistake of the artificial control extrusion film thickness uniformity
More than 10%, this much can not meet the requirement of compound package material to difference.
For extrusion composite membrane, the thickness evenness of its lateral cross section, the thickness evenness of longitudinal cross-section, extrusion are multiple
The surface evenness of formation affects the quality of final products after closing film superposition or crimping.
At present, the only regulation of the horizontal thickness uniformity on equipment complex, its lateral cross section only to monolayer material are extruded
The thickness uniformity is improved, but the flatness of the longitudinal cross-section thickness uniformity and coiled material surface to extruding composite membrane cannot be carried
It is high.Because, in the fabrication process due to the impact of the factors such as the accuracy of manufacture, thermal deformation, the gap of die lip is in width meeting for die head
There are the certain deviation, the surface roughness of die lip can be not quite identical.Also expressing technique pressure, the change of material flowability,
Damage to die lip discharge surface when high-temperature resin sticks to carbonization point, cleaning die lip mouth in die lip mouth, these factors all can shadow
Ring even to the became uneven of the plastic sheeting of Jing die heads extrusion.When product is batched, the material of became uneven is superimposed when take-up
On original position, the surface of coiled material just occurs rough phenomenon, makes batched material thick one thicker, Bao Zheyue
It is thin, it is commonly called as the product defects of " quick-fried muscle ".
And for the extrusion capacity of extruder die head is controlled, the control to extrusion capacity on extrusion equipment complex at present is generally adopted
With the method with recombination line synchronous velocity control, according to change (raising speed, the reduction of speed or stable in a certain linear speed of compound linear velocity
Degree), adjust converter to control the revolution of motor by certain proportionate relationship.In actual production, this mode exist with
Lower defect：1st, operate under a certain linear velocity, the rotating speed of converter opened loop control motor can not completely at equal pace relation be adjusted
Section, causes the longitudinal thickness deviation of thin film big；2nd, linear velocity is combined in lifting speed, the time is short, change is big, converter open loop control
The rotating speed of motor processed more relation can not be adjusted at equal pace, cause the longitudinal thickness deviation of thin film big.
The content of the invention
It is an object of the invention to overcome the deficiencies in the prior art, there is provided a kind of flatness control of full width width composite
Device, the device is capable of achieving the uniformity regulation of extrusion composite membrane lateral cross section thickness, the longitudinal cross-section thickness uniformity and adjusts and squeeze
The integrated control that the surface smoothness gone out after composite membrane superposition is adjusted, effectively improves product quality.
Another object of the present invention is to provide a kind of flatness of the full width width composite realized by said apparatus
Control method.
The technical scheme is that：A kind of flatness control device of full width width composite, including calibrator, probe
Installing rack, extruder, flatness governor motion, PLC and film conveying mechanism, the probe of calibrator is installed by popping one's head in
Extrusion composite film surface is set up in, extruder is provided with flatness governor motion, flatness governor motion, calibrator and extruder
It is electrically connected with PLC respectively, extrusion composite membrane is transmitted by film conveying mechanism, the die head of extruder is located at thin
Film conveying mechanism top.
The calibrator is contactless calibrator, and the lateral cross section of the probe edge extrusion composite membrane in calibrator is back and forth
It is mobile.
The probe mounting frame is O-shaped frame, and probe is fixed on O-shaped frame, extrudes space of the composite membrane from the middle part of O-shaped frame and wears
Cross.
The extruder includes support, screw rod, extruder servomotor and die head, and screw rod and extruder servomotor are all provided with
On support, die head is located at screw rod one end；
Flatness governor motion includes the travelling component of die head, black box, amplitude modulation compensation component and servo-driver, sealing
Located at the lower section of extruder die head, black box two ends are respectively provided with amplitude modulation compensation component to component, and the travelling component of die head is located at crowded
Go out on the support of machine, the travelling component of die head and amplitude modulation compensation component are connected respectively with servo-driver, die head moves about component, amplitude modulation
Compensation component and servo-driver are connected respectively with PLC.
The travelling component of the die head includes extruder encoder for servo motor, and extruder encoder for servo motor is located at extrusion
On machine servomotor, extruder encoder for servo motor is connected with PLC, and extruder servomotor connects with servo-driver
Connect；Wherein, extruder servomotor drive the machine barrel of extruder, screw rod and die head to be moved left and right (this part is squeezed for existing
Go out the current mechanism of machine), set up extruder encoder for servo motor in existing die head migration mechanism in the application, by with
The cooperation of PLC, can real-time detection extruder die head position；
Amplitude modulation compensation component includes adjustment unit, amplitude modulation servomotor and amplitude modulation encoder for servo motor, amplitude modulation servo electricity
Machine is located at adjustment unit one end, amplitude modulation encoder for servo motor on the amplitude modulation servomotor, amplitude modulation encoder for servo motor with
PLC connects, and amplitude modulation servomotor is connected with servo-driver；
Black box includes sealing member, sliding part and fixture, and fixture is fixed on the outside of die head, and sealing member is by sliding
Moving part is connected with fixture.
In the amplitude modulation compensation component, adjustment unit includes scale, tooth bar, gear and sealing member connecting seat, and scale passes through
Amplitude modulation fixed seat is fixed on die head outside, and tooth bar is fixed on scale bottom, and wheel and rack is meshed, and gear is electric with amplitude modulation servo
The output shaft connection of machine, gear is located on sealing member connecting seat by pinion stand, the outer end of sealing member connecting seat and black box
Connection；
In black box, fixture includes upper fixing element and lower fixture, upper fixing element and the lower fixture being connected
Junction is V-shaped, and lower fixture both sides have chute, and the two ends of sliding part are embedded in chute, and sliding part is relative to solid
Determine part to be horizontally slipped, sealing member is fixedly connected with the bottom of sliding part.
The film conveying mechanism includes let off roll, composite roll, wind-up roll and multiple live-rollers, according to extrusion composite membrane
Conveying direction, let off roll, composite roll and wind-up roll set gradually, and multiple live-rollers are provided between let off roll and composite roll, are combined
Multiple live-rollers also are provided between roller and wind-up roll；It is the transmission of film substrate, composite roll and receipts between let off roll and composite roll
It is the transmission of extrusion composite membrane between winding up roller, located at film substrate top, the probe of calibrator is located at extrusion for the die head of extruder
On composite membrane.Wherein, let off roll is released after film substrate, and by live-roller composite roll is delivered to, and the die head of extruder is to thin film base
Composite is extruded on material surface, and with the rotation of composite roll, composite covers to form composite bed on film substrate surface, is passed through
The extruding of composite roll, ultimately forming extrusion composite membrane, and deliver to wind-up roll by live-roller carries out winding process.
In said apparatus structure, PLC carries man machine interface, extrudes thickness rated value, the deviation range of composite membrane
Primary quantity, the compensation dosage model of value, thickness compensation value, the primary quantity of die head position, amount of movement scope and amplitude modulation compensation mechanism position
The parameter such as enclose, user can need be configured in man machine interface according to actual process, the relative analyses and calculating to each data
Realized by the running software of PLC.
The present invention realizes a kind of flatness control methods of full width width composite by said apparatus, including integrated carries out
Extrusion composite membrane the lateral cross section thickness uniformity adjust, the longitudinal cross-section thickness uniformity of extrusion composite membrane is adjusted and extruded
Surface smoothness after composite membrane superposition is adjusted, specially：
The thickness value of extrusion composite membrane is measured in real time by calibrator, then as PLC to each obtained by measurement
Thickness value is extracted, and lateral cross section thickness value and longitudinal cross-section thickness value are obtained respectively；
Lateral cross section thickness value is analyzed with thickness value set in advance, it is right to be then converted into analysis result
The adjusting screw regulated quantity at die head exit is answered, and then correspondence adjusts the width at die head exit, realizes that extrusion composite membrane is horizontal
The real-time regulation of thickness；
Longitudinal cross-section thickness value is analyzed with thickness value set in advance, is then converted into analysis result squeezing
Go out the screw speed regulated quantity of machine, and then control the extrusion capacity at extruder die head, realize the reality of extrusion composite membrane longitudinal thickness
When adjust；
The travelling component of die head to the corresponding position signalling of PLC output die head, amplitude modulation compensate component to PLC
The corresponding position signalling of output amplitude modulation compensation component, the compensation by required for PLC analyzes black box relative to die head
Amount, amplitude modulation compensation component band dynamic sealing assembly slides, and makes black box keep synchronous operation with die head.
Wherein, the method that the PLC is analyzed to lateral cross section thickness with thickness value set in advance
The control method of existing extrusion composite membrane lateral cross section thickness can be adopted.
The detailed process that the PLC is analyzed to longitudinal cross-section thickness value with thickness value set in advance
Comprise the following steps：
(1) thickness rated value, deviation range value and the thickness compensation of extrusion composite membrane are preset in PLC
Value；
(2) calibrator extrudes the thickness of composite membrane by probe on-line measurement, on the extrusion composite membrane in unit length
N times thickness measurements are obtained, each thickness measurements include M thickness measurements, and each thickness measurements are delivered to into PLC controls
Device processed；
Wherein, n times thickness measurements are the extrusion composite membrane in vertical unit length, in N number of different length value
Thickness；M thickness measurements are the thickness of the extrusion composite membrane in same length value lateral cross section in vertical unit length
Degree, M thickness measurements are corresponding with the adjusting screw number at die head exit；
(3) PLC is read after each thickness measurements, and a thickness measurements are extracted in each thickness measurements,
Longitudinal thickness measurement set is formed, the meansigma methodss of longitudinal thickness measurement set is calculated, then by meansigma methodss and thickness set in advance
Degree rated value is analyzed, calculated thickness departure；
(4) judge thickness deviation amount whether beyond deviation range value set in advance；If departure is not less than deviation range
Value, then PLC stopping is calculated, return to step (2)；If departure exceedes deviation range value, PLC combines thickness
Offset, carries out the calculating of thickness compensation number of times；
(5) with reference to the screw speed of extruder, the thickness compensation number of times for obtaining is converted into screw speed by PLC
Compensation number of times, is calculated each compensation dosage of screw speed, then passes the compensation number of times of screw speed and each compensation dosage
Extruder motor is given, the extrusion capacity of die head is controlled by adjusting the rotating speed of screw rod, so as to adjust the vertical of extrusion composite membrane
To the thickness uniformity.
In the step (4), when departure exceedes deviation range value, including the partially thick and partially thin two kinds of feelings of extrusion composite membrane
Condition, i.e. departure are less than the lower limit of deviation range value more than the upper limit or departure of deviation range value；PLC carries out thickness
When compensation number of times is calculated, first departure is contrasted with deviation range value, calculated difference, by difference divided by thickness compensation value,
Then obtain thickness compensation number of times.
The PLC is specific as follows to the regulation process for extruding surface smoothness after composite membrane is superimposed：
The corresponding position signalling of die head that extruder encoder for servo motor detection extruder servomotor is exported, amplitude modulation
The corresponding position signalling of amplitude modulation compensation mechanism that encoder for servo motor detection amplitude modulation servomotor is exported, is then respectively transmitted
To PLC, the compensation dosage by required for PLC calculates analysis black box relative to extruder die head, will compensate
Amount is conveyed to amplitude modulation servomotor, drives the operation of amplitude modulation compensation mechanism, band dynamic sealing assembly to slide by amplitude modulation servomotor so as to
Keep running simultaneously with extruder die head, so as to form unnecessary side in extrusion composite membrane both sides when preventing die head from moving left and right
Material.
The present invention has the advantages that relative to prior art：
It is equal that the flatness control device and method of this full width width composite is capable of achieving extrusion composite membrane lateral cross section thickness
Evenness is adjusted, the longitudinal cross-section thickness uniformity adjusts and extrude the integrated control that the surface smoothness after composite membrane superposition is adjusted,
Effectively improve product quality.
In the flatness control device of this full width width composite, by arranging thickness measuring on the production line of extrusion composite membrane
Instrument and PLC, realize the on-line measurement of extrusion composite membrane transverse gage and longitudinal thickness, and pass through obtained measurement
The extrusion capacity of value real-time adjustment extruder die head and the width of die head exit corresponding point, so as to the longitudinal direction for adjusting extrusion composite membrane is thick
Degree and transverse gage, effectively improve the longitudinal thickness uniformity and transverse gage uniformity of extrusion composite membrane, are conducive to improving bag
Include the indices such as the surface evenness and mechanical property of material.
In the flatness control device of this full width width composite, flatness governor motion principle is simple, is swum by die head
The cooperation of dynamic component, amplitude modulation compensation component and PLC three, can preferably realize between extruder die head and black box
Synchronous operation, the surface smoothness after the moving left and right to improve extrusion composite membrane superposition of extruder die head, while logical
Crossing black box prevents the extrusion composite membrane left and right sides from forming unnecessary rim charge, saves material cost, can also reduce follow-up side
Material treatment process；Surface evenness that simultaneously can be after effective control extrusion composite membrane superposition, prevent product surface occur it is concavo-convex not
Flat phenomenon.
The flatness control device of this full width width composite is changed in the production equipment of tradition extrusion composite membrane
Enter, its principle is simple, good with the compatibility of the compound membrane production equipment of existing extrusion, test result is accurate and quick, is conducive to
Reduce the production cost of extrusion composite membrane, and improve production efficiency.
Description of the drawings
Fig. 1 is that (flatness governor motion does not show for the structural representation of the flatness control device of this full width width composite
Go out).
Fig. 2 carries out method flow diagram when longitudinal thickness is adjusted for PLC.
Fig. 3 is the principle schematic of flatness governor motion.
Fig. 4 is that amplitude modulation compensates the installment state schematic diagram of component and black box at die head.
Fig. 5 is the structural representation that amplitude modulation compensates component.
Fig. 6 is the B directions view of Fig. 5.
Specific embodiment
With reference to embodiment, the present invention is described in further detail, but embodiments of the present invention not limited to this.
Embodiment 1
A kind of flatness control device of full width width composite of the present embodiment, as shown in figure 1, including calibrator (in figure
Not shown overall structure), probe mounting frame 2, extruder 3, flatness governor motion, PLC (not shown) and thin
Film conveying mechanism, by probe mounting frame located at extrusion composite membrane 4 surface, extruder is provided with flatness to the probe 1 of calibrator
Governor motion, flatness governor motion, calibrator and extruder are electrically connected respectively with PLC, and extrusion composite membrane passes through
Film conveying mechanism is transmitted, and the die head of extruder is located at film conveying mechanism top.
Calibrator is contactless calibrator, and the probe in calibrator is moved back along the lateral cross section of extrusion composite membrane
It is dynamic.It is transverse thick angle value that probe moves back and forth measured thickness value along extrusion composite membrane lateral cross section, with extrusion composite membrane
Be fed forward, the thickness value that measures on extrusion composite membrane different length of popping one's head in is longitudinal thickness value.
Probe mounting frame is O-shaped frame, and probe is fixed on O-shaped frame, extrudes space of the composite membrane from the middle part of O-shaped frame and passes through.
Extruder includes support, screw rod, extruder servomotor and die head 5, and screw rod and extruder servomotor are located at
On support, die head is located at screw rod one end；
As shown in figure 4, flatness governor motion includes the travelling component (not shown) of die head, black box 11, amplitude modulation
Compensation component 12 and servo-driver, located at the lower section of extruder die head, black box two ends are respectively provided with amplitude modulation to black box
Compensation component, the travelling component of die head on the support of extruder, the travelling component of die head and amplitude modulation compensation component respectively with servo
Driver connects, and move about component, amplitude modulation of die head compensates component and servo-driver and is connected with PLC respectively.
As shown in figure 3, the travelling component of die head includes extruder encoder for servo motor, extruder encoder for servo motor sets
On extruder servomotor, extruder encoder for servo motor is connected with PLC, and extruder servomotor drives with servo
Dynamic device connection；Wherein, extruder servomotor drive the machine barrel of extruder, screw rod and die head to be moved left and right (this part is
The current mechanism of existing extruder), extruder encoder for servo motor is set up in existing die head migration mechanism in the application, lead to
Cross the cooperation with PLC, can real-time detection extruder die head position；
Amplitude modulation compensation component includes adjustment unit, amplitude modulation servomotor and amplitude modulation encoder for servo motor, amplitude modulation servo electricity
Machine is located at adjustment unit one end, amplitude modulation encoder for servo motor on the amplitude modulation servomotor, amplitude modulation encoder for servo motor with
PLC connects, and amplitude modulation servomotor is connected with servo-driver；
As shown in fig. 6, black box includes sealing member 13, sliding part 14 and fixture 15, fixture is fixed on die head
Outside, sealing member is connected by sliding part with fixture.
In amplitude modulation compensation component, as shown in Figure 5 or Figure 6, adjustment unit includes scale 16, tooth bar 17, gear 18 and sealing
Part connecting seat 19, scale is fixed on die head outside by amplitude modulation fixed seat, and tooth bar is fixed on scale bottom, and wheel and rack is mutually nibbled
Close, gear is connected with the output shaft 21 of amplitude modulation servomotor 20, gear is located on sealing member connecting seat by pinion stand, sealing member
Connecting seat is connected with the outer end of black box；During amplitude modulation compensation mechanism component, its detailed process is：The output of amplitude modulation servomotor
Shaft driven gear rotates, and due to wheel and rack engagement, therefore gear drives amplitude modulation servomotor, sealing member to connect by pinion stand
Sealing member and sliding part movement in joint chair, black box, in moving process, the scale on scale shows its amount of movement；
In black box, fixture includes upper fixing element and lower fixture, upper fixing element and the lower fixture being connected
Junction is V-shaped, and lower fixture both sides have chute, and the two ends of sliding part are embedded in chute, and sliding part is relative to solid
Determine part to be horizontally slipped, sealing member is fixedly connected with the bottom of sliding part.
Film conveying mechanism includes let off roll 6, composite roll 7, wind-up roll 8 and multiple live-rollers 9, according to extrusion composite membrane
Conveying direction, let off roll, composite roll and wind-up roll set gradually, and multiple live-rollers are provided between let off roll and composite roll, are combined
Multiple live-rollers also are provided between roller and wind-up roll；Between let off roll and composite roll for film substrate 10 transmission, composite roll with
It is the transmission of extrusion composite membrane 4 between wind-up roll, located at film substrate top, the probe of calibrator is located at and squeezes the die head of extruder
Go out on composite membrane.Wherein, let off roll is released after film substrate, and by live-roller composite roll is delivered to, and the die head of extruder is to thin film
Substrate surface extrudes composite, and with the rotation of composite roll, composite covers to form composite bed on film substrate surface, Jing
The extruding of composite roll is crossed, ultimately forming extrusion composite membrane, and deliver to wind-up roll by live-roller carries out winding process.
In said apparatus structure, PLC carries man machine interface (HIMI), extrudes the thickness rated value, partially of composite membrane
The primary quantity of difference value range, thickness compensation value, the primary quantity of die head position, amount of movement scope and amplitude modulation compensation mechanism position, benefit
The parameters such as the amount of repaying scope, user can need to be configured in man machine interface according to actual process, the relative analyses to each data
Realize with the running software calculated by PLC.
Embodiment 2
The present embodiment realizes a kind of flatness control methods of full width width composite by the described device of embodiment 1, bag
The lateral cross section thickness uniformity for including the integrated extrusion composite membrane for carrying out adjusts, extrudes the longitudinal cross-section thickness uniformity of composite membrane
Adjust and extrude the surface smoothness after composite membrane superposition to adjust, specially：
The thickness value of extrusion composite membrane is measured in real time by calibrator, then as PLC to each obtained by measurement
Thickness value is extracted, and lateral cross section thickness value and longitudinal cross-section thickness value are obtained respectively；
Lateral cross section thickness value is analyzed with thickness value set in advance, it is right to be then converted into analysis result
The adjusting screw regulated quantity at die head exit is answered, and then correspondence adjusts the width at die head exit, realizes that extrusion composite membrane is horizontal
The real-time regulation of thickness；
Longitudinal cross-section thickness value is analyzed with thickness value set in advance, is then converted into analysis result squeezing
Go out the screw speed regulated quantity of machine, and then control the extrusion capacity at extruder die head, realize the reality of extrusion composite membrane longitudinal thickness
When adjust；
The travelling component of die head to the corresponding position signalling of PLC output die head, amplitude modulation compensate component to PLC
The corresponding position signalling of output amplitude modulation compensation component, the compensation by required for PLC analyzes black box relative to die head
Amount, amplitude modulation compensation component band dynamic sealing assembly slides, and makes black box keep synchronous operation with die head.
Wherein, PLC can be adopted to the method that lateral cross section thickness is analyzed with thickness value set in advance
With the control method of existing extrusion composite membrane lateral cross section thickness.
The detailed process that PLC is analyzed to longitudinal cross-section thickness value with thickness value set in advance is as schemed
Shown in 2, comprise the following steps：
(1) thickness rated value, deviation range value and the thickness compensation of extrusion composite membrane are preset in PLC
Value；
(2) calibrator extrudes the thickness of composite membrane by probe on-line measurement, on the extrusion composite membrane in unit length
N times thickness measurements are obtained, each thickness measurements include M thickness measurements, and each thickness measurements are delivered to into PLC controls
Device processed；
Wherein, n times thickness measurements are the extrusion composite membrane in vertical unit length, in N number of different length value
Thickness (i.e. longitudinal thickness measured value)；M thickness measurements are in vertical unit length, in same length value lateral cross section
Extrusion composite membrane thickness (i.e. transverse gage measured value), the adjusting screw number at M thickness measurements and die head exit
It is corresponding；
(3) PLC is read after each thickness measurements, and a thickness measurements are extracted in each thickness measurements,
Longitudinal thickness measurement set is formed, the meansigma methodss of longitudinal thickness measurement set is calculated, then by meansigma methodss and thickness set in advance
Degree rated value is analyzed, calculated thickness departure；
(4) judge thickness deviation amount whether beyond deviation range value set in advance；If departure is not less than deviation range
Value, then PLC stopping is calculated, return to step (2)；If it is (partially thick including extrusion composite membrane that departure exceedes deviation range value
Partially thin two kinds of situations, i.e. departure are less than the lower limit of deviation range value more than the upper limit or departure of deviation range value), then
PLC combines thickness compensation value, carries out the calculating of thickness compensation number of times, specially：PLC carries out thickness compensation
When number is calculated, first departure is contrasted with deviation range value, calculated difference, by difference divided by thickness compensation value, then obtained
Thickness compensation number of times；
(5) with reference to the screw speed of extruder, the thickness compensation number of times for obtaining is converted into screw speed by PLC
Compensation number of times, is calculated each compensation dosage of screw speed, then passes the compensation number of times of screw speed and each compensation dosage
Extruder motor is given, the extrusion capacity of die head is controlled by adjusting the rotating speed of screw rod, so as to adjust the vertical of extrusion composite membrane
To the thickness uniformity.
PLC is to extruding the regulation process of surface smoothness after composite membrane is superimposed as shown in figure 3, specific as follows：
The corresponding position signalling of die head that extruder encoder for servo motor detection extruder servomotor is exported, amplitude modulation
The corresponding position signalling of amplitude modulation compensation mechanism that encoder for servo motor detection amplitude modulation servomotor is exported, is then respectively transmitted
To PLC, the compensation dosage by required for PLC calculates analysis black box relative to extruder die head, will compensate
Amount is conveyed to amplitude modulation servomotor, drives the operation of amplitude modulation compensation mechanism, band dynamic sealing assembly to slide by amplitude modulation servomotor so as to
Keep running simultaneously with extruder die head, so as to form unnecessary side in extrusion composite membrane both sides when preventing die head from moving left and right
Material.
As described above, just can preferably realize the present invention, above-described embodiment is only presently preferred embodiments of the present invention, is not used
To limit the practical range of the present invention；I.e. all impartial changes made according to present invention and modification, all will for right of the present invention
Scope required for protection is asked to be covered.
Claims (6)
1. the flatness control device of full width width composite, it is characterised in that including calibrator, probe mounting frame, extruder,
Flatness governor motion, PLC and film conveying mechanism, the probe of calibrator is compound located at extrusion by probe mounting frame
Film surface, extruder is provided with flatness governor motion, flatness governor motion, calibrator and extruder respectively with PLC controls
Device is electrically connected, and extrusion composite membrane is transmitted by film conveying mechanism, and the die head of extruder is on film conveying mechanism
Side；
The calibrator is contactless calibrator, and the probe in calibrator is moved back along the lateral cross section of extrusion composite membrane
It is dynamic；
The extruder includes support, screw rod, extruder servomotor and die head, and screw rod and extruder servomotor are located at machine
On seat, die head is located at screw rod one end；
Flatness governor motion includes the travelling component of die head, black box, amplitude modulation compensation component and servo-driver, black box
Located at the lower section of extruder die head, black box two ends are respectively provided with amplitude modulation compensation component, and the travelling component of die head is located at extruder
Support on, the travelling component of die head and amplitude modulation compensation component be connecteds respectively with servo-driver, and move about component, amplitude modulation of die head is compensated
Component and servo-driver are connected respectively with PLC；
The travelling component of the die head includes extruder encoder for servo motor, and extruder encoder for servo motor is watched located at extruder
Take on motor, extruder encoder for servo motor is connected with PLC, extruder servomotor is connected with servo-driver；
Amplitude modulation compensation component includes adjustment unit, amplitude modulation servomotor and amplitude modulation encoder for servo motor, and amplitude modulation servomotor sets
In adjustment unit one end, amplitude modulation encoder for servo motor on amplitude modulation servomotor, with PLC control by amplitude modulation encoder for servo motor
Device connection processed, amplitude modulation servomotor is connected with servo-driver；
Black box includes sealing member, sliding part and fixture, and fixture is fixed on the outside of die head, and sealing member passes through sliding part
It is connected with fixture；
In the amplitude modulation compensation component, adjustment unit includes scale, tooth bar, gear and sealing member connecting seat, and scale passes through amplitude modulation
Fixed seat is fixed on die head outside, and tooth bar is fixed on scale bottom, and wheel and rack is meshed, gear and amplitude modulation servomotor
Output shaft connects, and by pinion stand on sealing member connecting seat, sealing member connecting seat is connected gear with the outer end of black box；
In black box, fixture includes the upper fixing element that is connected and lower fixture, the connection of upper fixing element and lower fixture
Place is V-shaped, and lower fixture both sides have chute, and the two ends of sliding part are embedded in chute, and sliding part is relative to fixture
Horizontally slipped, sealing member is fixedly connected with the bottom of sliding part.
2. the flatness control device of full width width composite according to claim 1, it is characterised in that the probe is installed
Frame is O-shaped frame, and probe is fixed on O-shaped frame, extrudes space of the composite membrane from the middle part of O-shaped frame and passes through.
3. the flatness control device of full width width composite according to claim 1, it is characterised in that the thin film conveying
Mechanism includes let off roll, composite roll, wind-up roll and multiple live-rollers, let off roll, compound according to the conveying direction of extrusion composite membrane
Roller and wind-up roll set gradually, and multiple live-rollers are provided between let off roll and composite roll, also are provided between composite roll and wind-up roll
Multiple live-rollers；It is the transmission of film substrate between let off roll and composite roll, is extrusion composite membrane between composite roll and wind-up roll
Transmission, located at film substrate top, the probe of calibrator is on extrusion composite membrane for the die head of extruder.
4. the flatness control methods of the full width width composite realized by any one of claims 1 to 3 described device, it is special
Levy and be, including the lateral cross section thickness uniformity of the integrated extrusion composite membrane for carrying out adjusts, extrudes the longitudinal cross-section of composite membrane
The thickness uniformity adjusts and extrudes the surface smoothness after composite membrane superposition and adjusts, specially：
The thickness value of extrusion composite membrane is measured in real time by calibrator, then as PLC to each thickness obtained by measurement
Value is extracted, and lateral cross section thickness value and longitudinal cross-section thickness value are obtained respectively；
Lateral cross section thickness value is analyzed with thickness value set in advance, then analysis result correspondence mould is converted into into
The adjusting screw regulated quantity in head exit, and then correspondence adjusts the width at die head exit, realizes extrusion composite membrane transverse gage
Real-time regulation；
Longitudinal cross-section thickness value is analyzed with thickness value set in advance, then analysis result extruder is converted into into
Screw speed regulated quantity, and then control extruder die head at extrusion capacity, realize extrusion composite membrane longitudinal thickness real-time tune
Section；
The travelling component of die head to the corresponding position signalling of PLC output die head, amplitude modulation compensate component and export to PLC
The corresponding position signalling of amplitude modulation compensation component, the compensation dosage by required for PLC analyzes black box relative to die head is adjusted
Width compensation component band dynamic sealing assembly slides, and makes black box keep synchronous operation with die head.
5. flatness control methods of full width width composite according to claim 4, it is characterised in that the PLC controls
Device is comprised the following steps to the detailed process that longitudinal cross-section thickness value is analyzed with thickness value set in advance：
(1) thickness rated value, deviation range value and the thickness compensation value of extrusion composite membrane are preset in PLC；
(2) calibrator extrudes the thickness of composite membrane by probe on-line measurement, and on the extrusion composite membrane in unit length N is obtained
Secondary thickness measurements, each thickness measurements include M thickness measurements, and each thickness measurements are delivered to into PLC；
Wherein, n times thickness measurements are the thickness of the extrusion composite membrane in N number of different length value in vertical unit length；
M thickness measurements are that in vertical unit length, the thickness of the extrusion composite membrane in same length value lateral cross section, M is individual
Thickness measurements are corresponding with the adjusting screw number at die head exit；
(3) PLC is read after each thickness measurements, and a thickness measurements are extracted in each thickness measurements, is formed
Longitudinal thickness measurement set, calculates the meansigma methodss of longitudinal thickness measurement set, then by meansigma methodss and thickness volume set in advance
Definite value is analyzed, calculated thickness departure；
(4) judge thickness deviation amount whether beyond deviation range value set in advance；If departure is not less than deviation range value,
PLC stops calculating, return to step (2)；If departure exceedes deviation range value, PLC combines thickness compensation
Value, carries out the calculating of thickness compensation number of times；
(5) with reference to the screw speed of extruder, the thickness compensation number of times for obtaining is converted into PLC the compensation of screw speed
Number of times, is calculated each compensation dosage of screw speed, then sends to the compensation number of times and each compensation dosage of screw speed
Extruder motor, the extrusion capacity of die head is controlled by adjusting the rotating speed of screw rod, so as to the longitudinal direction for adjusting extrusion composite membrane is thick
The thin uniformity.
6. flatness control methods of full width width composite according to claim 4, it is characterised in that the PLC controls
Device is specific as follows to the regulation process for extruding surface smoothness after composite membrane is superimposed：
The corresponding position signalling of die head that extruder encoder for servo motor detection extruder servomotor is exported, amplitude modulation servo
The motor encoder detection corresponding position signalling of amplitude modulation compensation mechanism that exported of amplitude modulation servomotor, be then respectively transmitted to
PLC, the compensation dosage by required for PLC calculates analysis black box relative to extruder die head, by compensation dosage
Amplitude modulation servomotor is conveyed to, drives the operation of amplitude modulation compensation mechanism, band dynamic sealing assembly to slide by amplitude modulation servomotor so as to
Extruder die head keeps synchronous operation, so as to form unnecessary rim charge in extrusion composite membrane both sides when preventing die head from moving left and right.
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| CN110466129A (en) * | 2019-09-10 | 2019-11-19 | 于志宏 | A kind of rubber fastening band extruder |
| CN112873783B (en) * | 2021-02-01 | 2022-12-13 | 泸州胜扬新材料有限公司 | Forming device and process for producing gelatin composite geomembrane |
| CN116476351B (en) * | 2023-04-25 | 2023-09-26 | 山东鑫达鲁鑫防水工程有限公司 | Polyvinyl chloride PVC waterproofing membrane preparation system |
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| JP2001301011A (en) * | 2000-04-24 | 2001-10-30 | Sekisui Chem Co Ltd | Thickness controller for film |
| CN102173193A (en) * | 2010-12-30 | 2011-09-07 | 东莞市博森印刷器材有限公司 | Control system and method for printing paper or coating film |
| CN202336999U (en) * | 2011-11-21 | 2012-07-18 | 浙江普利金塑胶有限责任公司 | Automatic film thickness adjusting device of polyvinyl butyral (PVB) film extruder |
| CN203172007U (en) * | 2013-03-27 | 2013-09-04 | 陈庆明 | Plastic film production device capable of automatically controlling thickness |
| 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 |
| CN204687301U (en) * | 2015-05-20 | 2015-10-07 | 江门市辉隆塑料机械有限公司 | The flatness control device of the wide composite of full width |
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Denomination of invention: Flatness control device and method for full width composite materials Effective date of registration: 20230407 Granted publication date: 20170412 Pledgee: Bank of China Limited by Share Ltd. Jiangmen branch Pledgor: HUILONG PLASTICS MACHINERY Co.,Ltd. Registration number: Y2023980037603 |