CN108820990A - Method and system applied to paper tension adjustment - Google Patents
Method and system applied to paper tension adjustment Download PDFInfo
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- CN108820990A CN108820990A CN201810522081.XA CN201810522081A CN108820990A CN 108820990 A CN108820990 A CN 108820990A CN 201810522081 A CN201810522081 A CN 201810522081A CN 108820990 A CN108820990 A CN 108820990A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H43/00—Use of control, checking, or safety devices, e.g. automatic devices comprising an element for sensing a variable
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2701/00—Handled material; Storage means
- B65H2701/10—Handled articles or webs
- B65H2701/11—Dimensional aspect of article or web
- B65H2701/113—Size
- B65H2701/1133—Size of webs
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Abstract
The present invention relates to paper manufacturing technology fields, disclose a kind of method and system applied to paper tension adjustment.This method includes：Detect the first hardness number of the first paper roll sample surfaces；The first hardness number is judged whether in hardness threshold range, if it is not, adjusting the superpressure pressure value of station corresponding to the first paper roll sample, then to adjust the paper tension of subsequent paper roll.By the above-mentioned means, the present invention can be realized the adjustment to paper tension.
Description
Technical field
The present invention relates to paper manufacturing technology field, more particularly to a kind of method applied to paper tension adjustment and
System.
Background technique
The production equipment of papermaking is currently used for due to its prolonged operation, each copy paper apparatus exists not in equipment
Abrasion and control parameters error with degree.The difficulty that the deviation of equipment attrition and control parameter is verified in equipment itself
Spend larger, the Quality Feedback often through product paper goes out the problems of equipment.But due to product paper system experienced
Journey is more, causes feedback adjustment work lag serious.
Summary of the invention
In view of this, the invention mainly solves the technical problem of providing it is a kind of applied to paper tension adjustment method with
And system, it can be realized the adjustment to paper tension.
In order to solve the above technical problems, one technical scheme adopted by the invention is that：It provides a kind of applied to paper tension
The method of adjustment, this method include：Detect the first hardness number of the first paper roll sample surfaces；Judge the first hardness number whether hard
It spends in threshold range, if it is not, adjusting the superpressure pressure value of station corresponding to the first paper roll sample, then to adjust the paper of subsequent paper roll
Zhang Zhangli.
In one embodiment of this invention, this method further comprises：Detect multiple first inspections of the first paper roll sample surfaces
Location sets corresponding first hardness number；Judge the first hardness number corresponding to each first detection position whether in hardness respectively
In threshold range, wherein corresponding first check bit of the first hardness number not in hardness threshold range is set to the first defective bit
It sets；The superpressure pressure value of station corresponding to the first defective locations is adjusted, to adjust the paper tension of subsequent paper roll.
In one embodiment of this invention, the step of adjusting the superpressure pressure value of station corresponding to the first defective locations is specific
Including：Determine target position of the first defective locations of the first paper roll sample surfaces in the first paper roll；Adjust target position
The corresponding superpressure pressure value of locating station, to adjust corresponding region in subsequent the second paper roll by station locating for target position
Paper sheet thickness, so as to adjust the hardness number on the second paper roll surface；Wherein, the first paper roll sample is derived from the first paper roll.
In one embodiment of this invention, after the step of adjusting the superpressure pressure value of station corresponding to the first defective locations
Including：The second detection position is determined on the second paper roll surface, and detects corresponding second hardness number in the second detection position；Its
In, the second detection position is in phase bits of corresponding first defective locations in relative position in the first paper roll in the second paper roll
It sets；Judge the second hardness number whether in hardness threshold range, wherein the second hardness number not in hardness threshold range is corresponding
The second check bit be set to the second defective locations；The pulp fiber content of station corresponding to the second defective locations is adjusted, with adjustment
The paper tension of subsequent paper roll.
In one embodiment of this invention, the step of adjusting the pulp fiber content of station corresponding to the second defective locations has
Body includes：The stream slurry amount of slurry source corresponding to station locating for the second defective locations is adjusted, to adjust work locating for the second defective locations
The pulp fiber content of the body paper of position subsequent forming, so as to adjust the body paper surface of station subsequent forming locating for the second defective locations
Hardness number.
In one embodiment of this invention, the first paper roll sample surfaces of detection multiple first detections position corresponding the
The step of one hardness number, specifically includes：Apply mechanical masterpiece respectively in multiple first detections position of the first paper roll sample surfaces
With the characteristic information that each first detection of the first paper roll sample surfaces of statistics position is fed back obtains hardness profile, hardness point
Cloth curve includes the first hardness number corresponding to each first detection position of the first paper roll sample surfaces.
In one embodiment of this invention, judge the first hardness number corresponding to each first detection position whether hard respectively
Step in degree threshold range specifically includes：Each first detection of the first paper roll sample surfaces position is obtained from hardness profile
The first corresponding hardness number, and be compared respectively with hardness threshold range.
In order to solve the above technical problems, another technical solution that the present invention uses is：It provides a kind of applied to paper
The system of power adjustment, the system can be realized the method for being applied to paper tension and adjusting illustrated such as above-described embodiment.
In one embodiment of this invention, which includes controller and superpressure device, and controller and superpressure device connect
It connects, controller is for controlling the corresponding superpressure pressure of superpressure device adjustment different station.
In one embodiment of this invention, which further comprises head box, and head box corresponds to different station and is provided with
Cocurrent flow does not starch nozzle, and head box is connect with controller, and controller is used to control the stream slurry amount of not cocurrent flow slurry nozzle, to control difference
The corresponding pulp fiber content of station.
The beneficial effects of the invention are as follows：Be different from the prior art, the present invention provide it is a kind of applied to paper tension adjustment
Method, by detecting the first hardness number of the first paper roll sample surfaces, to judge whether the surface tension of the first paper roll sample reaches
To requirement, the case where reflecting its surface tension to a certain extent using the hardness number of the first paper roll sample surfaces.By first
Whether hardness number is compared with hardness threshold range, judge the first hardness number in hardness threshold range.If the first hardness number
Not in hardness threshold range, then need to feed back to the superpressure pressure of station corresponding to the first paper roll sample, by adjusting first
The superpressure pressure value of station corresponding to paper roll sample, to adjust the paper tension of subsequent paper roll.
Detailed description of the invention
Fig. 1 is the flow diagram for the method first embodiment that the present invention is applied to paper tension adjustment；
Fig. 2 is the flow diagram for the method second embodiment that the present invention is applied to paper tension adjustment；
Fig. 3 is the schematic diagram of hardness profile first embodiment of the present invention；
Fig. 4 is the schematic diagram of hardness profile second embodiment of the present invention；
Fig. 5 is the schematic diagram of hardness profile 3rd embodiment of the present invention；
Fig. 6 is the flow diagram for the method 3rd embodiment that the present invention is applied to paper tension adjustment；
Fig. 7 is the structural schematic diagram for one embodiment of system that the present invention is applied to paper tension adjustment；
Fig. 8 is the structural schematic diagram of one embodiment of head box of the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description.
Referring to Fig. 1, Fig. 1 is the flow diagram for the method first embodiment that the present invention is applied to paper tension adjustment.
S101：Detect the first hardness number of the first paper roll sample surfaces；
The hardness of first paper roll sample surfaces can reflect the first paper roll sample surfaces tension to a certain extent.This implementation
Example passes through the first hardness number of the first paper roll sample surfaces of detection, to assess its surface tension, so as to improve due to copying
The situation of paper surface tension unevenness caused by paper equipment attrition and parameter error.
S102：Judge the first hardness number whether in hardness threshold range；
In the present embodiment, whether the first hardness number for the first paper roll sample surfaces detected by assessing, which reaches, is wanted
Ask, which be compared with hardness threshold range, judge first hardness number whether in hardness threshold range,
Whether to assess first hardness number rationally.Wherein, hardness threshold range is the first paper roll sample surfaces satisfactory first
The set of hardness number.
S103：If it is not, adjusting the superpressure pressure value of station corresponding to the first paper roll sample, then to adjust the paper of subsequent paper roll
Zhang Zhangli；
In the present embodiment, if the first hardness number of the first detected paper roll sample surfaces is not in above-mentioned hardness threshold value
In range, then illustrate that first hardness number not up to requires, the region that the first paper roll sample surfaces correspond to first hardness number is hard
Degree needs to be adjusted.It manufactures paper with pulp in processing procedure in paper roll, the processing procedure directly related with its surface hardness is supercalendering processing procedure.Pass through
Adjustment supercalendering device is applied to the superpressure pressure value of station corresponding to the first paper roll sample, subsequent by the station to adjust
Paper roll surface hardness, so as to adjust the paper tension of subsequent paper roll.
Above as can be seen that the method provided by the present invention applied to paper tension adjustment, passes through the first paper roll sample of detection
First hardness number on product surface utilizes the first paper roll sample to judge whether the surface tension of the first paper roll sample reaches requirement
The hardness number on surface reflects the case where its surface tension to a certain extent.First hardness number and hardness threshold range are carried out
It compares, judges the first hardness number whether in hardness threshold range.If the first hardness number in hardness threshold range, does not need
The superpressure pressure of station corresponding to the first paper roll sample is fed back to, by adjusting the superpressure pressure of station corresponding to the first paper roll sample
Force value, to adjust the paper tension of subsequent paper roll.
Referring to Fig. 2, Fig. 2 is the flow diagram for the method second embodiment that the present invention is applied to paper tension adjustment.
Since paper making equipment operates for a long time, it is inclined to there is different degrees of abrasion and manufacturing parameter in each paper making equipment
Difference causes paper making equipment paper produced there are different degrees of quality problem, one of them be exactly paper surface tension not
Equal quality problem.By comparing the corresponding relationship of the condition of manufacturing paper with pulp of paper surface tension and each section of processing procedure for a long time, paper is found
Surface hardness uniformity directly affects its Tension Evenness, and specially paper surface uniformity of hardness is good, then its surface tension
Uniformity equally shows well.Therefore the present embodiment illustrates that the method applied to paper tension adjustment utilizes paper surface hardness
Uniformity assesses its surface tension uniformity, and improves the uniformity of paper surface tension by adjusting associated production parameter.
It should be noted that the present embodiment illustrates that the method applied to paper tension adjustment includes but is not limited to following step
Suddenly.
S201：Detect corresponding first hardness number in the first paper roll sample surfaces multiple first detections position；
In the present embodiment, it is produced from paper making equipment and intercepts the first paper roll sample in molding first paper roll, to
Detect the uniformity of the first paper roll surface hardness.It can be from the different location of the first paper roll and intercept multiple first paper roll samples
Product are sampled assessment, and choose multiple first detections position in the first paper roll sample surfaces, detect multiple first respectively
Detect the corresponding hardness number in position, i.e. the first hardness number.According to the first hardness Distribution value of the first paper roll sample surfaces to assess
The Tension Evenness of first paper roll sample surfaces.
In one embodiment of this invention, the first paper roll sample surfaces of detection multiple first detections position corresponding the
One hardness number is specifically as follows：Apply mechanical force respectively in multiple first detection position of the first paper roll sample surfaces
(such as percussion power), the first paper roll sample surfaces receive meeting feedback characteristics information after mechanical force, the characteristic fed back are believed
Breath is converted into corresponding hardness number, the characteristic information that each first detection of the first paper roll sample surfaces of statistics position is fed back
Obtain the hardness profile of multiple first detection position, wherein hardness profile includes the first paper roll sample surfaces
It is each first detection position corresponding to the first hardness number.
For example, on papermaking assembly line, staff often uses particular instrument to detect the first paper roll sample surfaces
The first hardness number.Specially staff's hand-held instrument is at the uniform velocity moved along the breadth direction of the first paper roll sample, and instrument is along
The breadth direction of one paper roll sample applies mechanical force to multiple first detections position respectively, to complete the first paper roll sample table
The detection of surface hardness and draw out hardness profile.
S202：Judge that each first detects the first hardness number corresponding to position whether in hardness threshold range respectively,
In, corresponding first check bit of the first hardness number not in hardness threshold range is set to the first defective locations；
In the present embodiment, whether the uniformity for the hardness distribution of the first paper roll sample surfaces of assessment, which reaches, makes the first paper
Roll up sample surfaces even tension requirement, need to the first paper roll sample surfaces first detect position the first hardness number respectively into
Row assessment.If the first hardness number of each first detection position is in the reasonable scope, illustrate the first paper roll sample surfaces hardness
It is evenly distributed, the first hardness number that position is detected in part first if it exists not in the reasonable scope, then illustrates first check bit
The the first hardness number needs set are adjusted, so that the first paper roll sample surfaces hardness is evenly distributed.What the present embodiment was illustrated
Hardness threshold range is the zone of reasonableness for defining paper roll surface hardness.
It is specifically as follows：Each first inspection of the first paper roll sample surfaces is read from hardness profile obtained by above-mentioned steps
Location sets the first corresponding hardness number, and is compared respectively with hardness threshold range, i.e., judges each first check bit respectively
The first corresponding hardness number is set whether in hardness threshold range.Corresponding to each first detection position in the first hardness number
It is rational hardness value in hardness threshold range, without corresponding first check bit of the first hardness number in hardness threshold range
Setting corresponding station is the position for needing to carry out hardness adjustment, which is defined as the first defective locations.Hardness point
Cloth curve is as shown in figure 3, wherein a is the first hardness number reference axis, and d is the first paper roll sample breadth direction apart from reference axis, and w is
Hardness threshold range.It can be seen from the figure that each node is the first hardness number of the first detection position in hardness profile,
In the first hardness number b1 and b2 be in except hardness threshold range w, therefore the first hardness number b1 and b2 it is corresponding first inspection
Location is set to the first defective locations.
It should be noted that hardness threshold range is fed back by long-term, a large amount of production data acquisition and according to user
Information summarize and obtain, reflect that the hardness of the paper each position of paper roll can satisfy the reasonable model of user usage requirements
It encloses, and according to the feedback information of production process and user's use process, is constantly adjusted, so that paper hardness is evenly distributed
Property reaches different aspect and the demand of user.Also, hardness of the first paper roll sample in its breadth direction upper surface is distributed feelings
Condition is different, and corresponding hardness threshold range is not also identical.Such as single sided taper is totally presented in hardness profile shown in Fig. 4；
Hardness profile shown in Fig. 5 is totally steady, but height value difference is away from the larger distribution straggly that is serrated.Above-mentioned Fig. 4's and Fig. 5
Hardness profile trend has differences, and hardness threshold range corresponding to the two is not also identical.By selecting reasonable hardness threshold
It is worth range, to advanced optimize the uniformity of hardness number on the breadth direction of paper roll surface.The present embodiment is according to the first paper roll sample
Hardness distribution situation in its breadth direction upper surface chooses reasonable hardness threshold range and participates in adjustment work.
In addition, being correspondingly arranged on multiple and different stations along paper roll breadth direction in paper making equipment, each station controls respectively
It is produced on paper roll along the preparation of the paper of its breadth direction certain area.Paper making equipment is provided with different productions for different station
Parameter, so that each station participates in the preparation production work of a whole paper roll jointly, i.e., final finished paper roll is along its breadth direction
Multiple regions respectively correspond a station.It is understood that papermaking used in each section of processing procedure is set on paper production assembly line
Station in standby mutually corresponds to, i.e., the product of a certain station will be transmitted to next processing procedure in the paper making equipment of a upper processing procedure
Station is corresponded in paper making equipment carries out further processing production.
S203：The superpressure pressure value of station corresponding to the first defective locations is adjusted, to adjust the paper tension of subsequent paper roll；
In the present embodiment, the first hardness number corresponding to the first defective locations causes not in hardness threshold range
One paper roll sample surfaces hardness is unevenly distributed, uneven so as to cause the first paper roll sample surfaces tension, the first paper roll sample paper
It is easy to happen the bad problems such as fracture.In paper production assembly line, it is directly associated with the first paper roll sample surfaces hardness
Processing procedure is supercalendering processing procedure, by being applied to the superpressure pressure of paper to adjust the hardness of paper in supercalendering processing procedure,
Therefore the present embodiment feeds back to supercalendering processing procedure and lacks by adjusting first when the first hardness number of the first defective locations is bad
The superpressure pressure value of station corresponding to position is fallen into, to improve the hardness distribution of subsequent paper roll, so as to adjust the paper of subsequent paper roll
Tension.
In one embodiment of this invention, the superpressure pressure value for adjusting station corresponding to the first defective locations specifically can be with
For：Determine target position (wherein, first paper roll sample of the first defective locations of the first paper roll sample surfaces in the first paper roll
Product are derived from the first paper roll.The error that first defective locations are tracked to target position can be as accurate as in 1cm).Adjust target position
The corresponding superpressure pressure value of locating station is set, it is subsequent (i.e. subsequent by the second paper roll of station locating for target position to adjust
Paper roll) in corresponding region paper sheet thickness, change the second paper roll in correspond to paper region fiber be distributed so that the paper area
The hardness in domain is adjusted, so as to adjust the hardness number on the second paper roll surface.If such as the first defective locations fed back
One hardness number is relatively low, then illustrates that the paper of the first defective locations is partially thin by weight, accordingly suitably reduces work locating for target position
The corresponding superpressure pressure value in position；If or the first hardness number that the first defective locations are fed back is higher, illustrates the first defective bit
Superpressure pressure suffered by the paper set is smaller, and thickness is partially thick, accordingly suitably increases the corresponding superpressure of station locating for target position
Pressure value.
It should be noted that due to the point that the first defective locations are the first paper roll sample surfaces, and target position
Locating station is an area concept, i.e., will affect the adjustment of superpressure pressure corresponding to the first defective locations to the entire area of the station
The superpressure pressure value in domain.Therefore the adjustment amplitude of superpressure pressure value is smaller, according to the first hardness number of the first defective locations and firmly
The size of the difference of degree threshold range is adjusted, and the subsequent paper hardness of station locating for target position is adjusted to hardness threshold value model
Enclose with its immediate marginal value, and be aided with real time scan paper sheet thickness variation, reflect the thickness of paper substantially
Degree variation, to judge whether superpressure pressure adjustment front and back paper sheet thickness is effectively improved.
Above as can be seen that the method provided by the present invention applied to paper tension adjustment, passes through the first paper roll sample
The hardness on surface is distributed to assess the Tension Evenness of the first paper roll sample surfaces.It is more specially to detect the first paper roll sample surfaces
Corresponding first hardness number in a first detection position, and be compared respectively with hardness threshold range, to not in hardness threshold
The superpressure pressure value of station corresponding to corresponding first defective locations of the first hardness number within the scope of value is adjusted, after adjustment
The continuous paper roll surface hardness by the station, so as to adjust the paper tension of subsequent paper roll.
Referring to Fig. 6, Fig. 6 is the flow diagram for the method 3rd embodiment that the present invention is applied to paper tension adjustment.
Most it is worth since the adjustment amplitude of superpressure pressure value exists, i.e., when the adjustment to superpressure pressure value reaches maximum adjustment width
When spending, still the subsequent paper surface hardness by station locating for target position corresponding to the first defective locations can not be adjusted to
In hardness threshold range, then need further to adjust the pulp fiber content and distribution of body paper corresponding to the station.
First paper roll sample surfaces why exist by adjusting superpressure pressure also can not full correction the first defective bit
It sets, reason is the first paper roll corresponding to the first paper roll sample in its paper pulp molding link, and by different station, institute is right
Answer in slurry the first paper roll caused by pulp fiber content and pulp fiber distributing homogeneity difference on its breadth direction
Paper sheet thickness is uneven, roughly controls relatively gentle by the paper sheet thickness of the first paper roll even by soft pressure pressure, still
There may be the biggish locations/regions of difference in thickness.Wherein, the paper sheet thickness that partially there are difference in thickness locations/regions can be with
Be adjusted by supercalendering link to zone of reasonableness, and the first paper roll portion/region thickness even by
Supercalendering link, which is adjusted, can not also adjust to zone of reasonableness, this just needs the slurry of paper pulp corresponding to relative stations fine
Dimension hplc participates in hardness adjustment.
The present embodiment is provided combines adjustment superpressure pressure and raw paper pulp fine applied to the method for paper tension adjustment
Dimension hplc, to adjust paper roll surface hardness distribution.It includes but is not limited to following steps.
S301：Detect corresponding first hardness number in the first paper roll sample surfaces multiple first detections position；
In the present embodiment, it is produced from paper making equipment and intercepts the first paper roll sample in molding first paper roll, to
Detect the uniformity of the first paper roll surface hardness.It can be from the different location of the first paper roll and intercept multiple first paper roll samples
Product are sampled assessment, and choose multiple first detections position in the first paper roll sample surfaces, detect multiple first respectively
Detect the corresponding hardness number in position, i.e. the first hardness number.According to the first hardness Distribution value of the first paper roll sample surfaces to assess
The Tension Evenness of first paper roll sample surfaces.
S302：Judge that each first detects the first hardness number corresponding to position whether in hardness threshold range respectively,
In, corresponding first check bit of the first hardness number not in hardness threshold range is set to the first defective locations；
In the present embodiment, whether the uniformity for the hardness distribution of the first paper roll sample surfaces of assessment, which reaches, makes the first paper
Roll up sample surfaces even tension requirement, need to the first paper roll sample surfaces first detect position the first hardness number respectively into
Row assessment.If the first hardness number of each first detection position is in the reasonable scope, illustrate the first paper roll sample surfaces hardness
It is evenly distributed, the first hardness number that position is detected in part first if it exists not in the reasonable scope, then illustrates first check bit
The the first hardness number needs set are adjusted, so that the first paper roll sample surfaces hardness is evenly distributed.What the present embodiment was illustrated
Hardness threshold range is the zone of reasonableness for defining paper roll surface hardness.
S303：The superpressure pressure value of station corresponding to the first defective locations is adjusted, to adjust the paper of subsequent second paper roll
Zhang Zhangli；
In the present embodiment, the first hardness number corresponding to the first defective locations causes not in hardness threshold range
One paper roll sample surfaces hardness is unevenly distributed, uneven so as to cause the first paper roll sample surfaces tension, the first paper roll sample paper
It is easy to happen the bad problems such as fracture.In paper production assembly line, it is directly associated with the first paper roll sample surfaces hardness
Processing procedure is supercalendering processing procedure, by being applied to the superpressure pressure of paper to adjust the hardness of paper in supercalendering processing procedure,
Therefore the present embodiment feeds back to supercalendering processing procedure and lacks by adjusting first when the first hardness number of the first defective locations is bad
The superpressure pressure value of station corresponding to position is fallen into, to improve the hardness distribution of subsequent paper roll, so as to adjust subsequent paper roll (such as the
Two paper rolls etc.) paper tension.
S304：The second detection position is determined on the second paper roll surface, and detects the second detection position corresponding second firmly
Angle value；
It in the present embodiment, is detection after the adjustment of superpressure pressure, former first paper roll surface the first defective locations institute
Whether the paper hardness of corresponding station production has adjusted to hardness threshold range, determines the second detection on the second paper roll surface
Position, and detect corresponding second hardness number in the second detection position.Since the first paper roll is identical as the breadth of the second paper roll,
And the second detection position is in phase of corresponding first defective locations in relative position in the first paper roll in the second paper roll
Position, therefore the second detection position corresponds to above-mentioned first defective locations, to verify the super of station corresponding to the first defective locations
Whether pressure pressure adjustment will correspond to paper surface region (the i.e. second detection of the station in subsequent paper roll (i.e. the second paper roll)
Position) hardness adjust to hardness threshold range.First paper roll surface is right there are at least one above-mentioned first defective locations
Ying Di, the second detection number of positions determined by the second paper roll surface are identical as the first defective locations quantity.
S305：Judge the second hardness number whether in hardness threshold range, wherein not second in hardness threshold range
Corresponding second check bit of hardness number is set to the second defective locations；
In the present embodiment, the second hardness number is compared with hardness threshold range, whether to judge the second hardness number
In hardness threshold range.Hardness threshold range is elaborated in the above-described embodiments, and details are not described herein again.It will
The second hardness number corresponding second detection position not in hardness threshold range is defined as the second defective locations, the second defective bit
Set correspond to corresponding station in above-mentioned first defective locations superpressure pressure be adjusted after, still can not be corresponding by the station
Paper surface zone hardness adjust to the first defective locations in hardness threshold range.Station corresponding to second defective locations
Pulp fiber content needs to participate in carry out hardness adjustment.
S306：The pulp fiber content of station corresponding to the second defective locations is adjusted, to adjust the paper of subsequent paper roll
Power；
In the present embodiment, the second paper roll is corresponding with multiple and different stations, multiple different station in its breadth direction
The common body paper for participating in the second paper roll such as forms, manufactures paper with pulp at the processing procedures link.In the molding link of the second paper roll, different station
Slurry source is respectively corresponded, to provide the station for the molding paper pulp of body paper.Pulp fiber in paper pulp corresponding to different station
Content and distribution will will affect the quality (such as hardness number etc.) of subsequent forming body paper.The present embodiment is by adjusting second
The pulp fiber content of station corresponding to defective locations, to adjust the slurry of the body paper of station subsequent forming locating for the second defective locations
Fiber content is expected, so as to adjust the hardness number on the body paper surface of station subsequent forming locating for the second defective locations, in adjustment superpressure
Paper surface hardness is further adjusted on the basis of pressure.Specially：The superpressure pressure of corresponding station in first defective locations
After being adjusted, the zone hardness on the second paper roll surface corresponding to the station is still less than normal, then illustrates corresponding to the station
Pulp fiber content is relatively low, the stream slurry amount of slurry source corresponding to the station is properly increased, to improve slurry corresponding to the station
Fiber content, it is on the contrary then anti-.
It should be noted that the present embodiment is illustrated applied to the method for paper tension adjustment, paper roll surface hardness is utilized
Distributing homogeneity is to assess its surface tension uniformity.When detecting paper roll surface hardness distributing homogeneity defect, first feed back
To supercalendering link, hardness adjustment (adjustment result can be obtained within general 2 hours) is carried out, in advance to improve paper tension feedback
The hysteresis quality problem of adjustment.And in conjunction with the pulp fiber content of adjustment body paper paper pulp, to improve the adjustment of paper roll surface hardness
Effect.
Referring to Fig. 7, Fig. 7 is the structural schematic diagram for one embodiment of system that the present invention is applied to paper tension adjustment.
In the present embodiment, the system 1 applied to paper tension adjustment can be realized the application that above-described embodiment is illustrated
In the method for paper tension adjustment, details are not described herein again.
Further, which includes controller 11 and superpressure device 12, and superpressure device 12 is to be used in paper manufacturing process
Apply superpressure pressure in paper surface, the equipment to carry out supercalendering processing procedure.Superpressure device 12 is specifically as follows supercalendering
Machine etc..Supercalender is made of the alternate vertical arrangement of metallic roll and paper calender roll.When operation, since roller number is more, line pressure is big, paper
The deformation of dregs of rice roller generates friction to paper to further increase the glossiness, smoothness and tightness of paper.Supercalender speed
Fastly, more separate units use.Generally it is also equipped with the auxiliary equipments such as unreeling stand, reel machine and Special lifting station.Be chiefly used in writing paper,
The ornamenting of offset printing paper, coating paper and kraft capacitor paper etc. is processed.
Controller 11 is the logic circuit set for having independent computing power comprising has CPU (Central
Processing Unit, central processing unit) etc. logical integrated circuits, have operation and control ability.
In other embodiments of the invention, controller 11 further includes the man-machine interface for being provided with human-computer interaction, for mentioning
The input etc. of display and control instruction for data.
Further, which further includes head box 13, for paper pulp needed for providing body paper molding.Head box 13 is right
Different station 14 is answered to be provided with not cocurrent flow slurry nozzle 131.Head box 13 is connect with controller 11, and controller 11 is for controlling difference
The stream slurry amount of stream slurry nozzle 131, to control the corresponding pulp fiber content of different station 14, as shown in Figure 8.
Mode the above is only the implementation of the present invention is not intended to limit the scope of the invention, all to utilize this
Equivalent structure or equivalent flow shift made by description of the invention and accompanying drawing content, it is relevant to be applied directly or indirectly in other
Technical field is included within the scope of the present invention.
Claims (10)
1. a kind of method applied to paper tension adjustment, which is characterized in that the method includes：
Detect the first hardness number of the first paper roll sample surfaces；
First hardness number is judged whether in hardness threshold range, if it is not, then adjusting corresponding to the first paper roll sample
The superpressure pressure value of station, to adjust the paper tension of subsequent paper roll.
2. the method according to claim 1, wherein the method further includes：
Detect corresponding first hardness number in the first paper roll sample surfaces multiple first detections position；
Judge that each described first detects first hardness number corresponding to position whether in the hardness threshold range respectively,
Wherein, corresponding first check bit of first hardness number not in the hardness threshold range is set to the first defective bit
It sets；
The superpressure pressure value of station corresponding to first defective locations is adjusted, to adjust the paper tension of subsequent paper roll.
3. according to the method described in claim 2, it is characterized in that, station corresponding to the adjustment first defective locations
The step of superpressure pressure value, specifically includes：
Determine target position of first defective locations of the first paper roll sample surfaces in the first paper roll；
The corresponding superpressure pressure value of station locating for the target position is adjusted, it is subsequent by work locating for the target position to adjust
The paper sheet thickness of corresponding region in second paper roll of position, so as to adjust the hardness number on the second paper roll surface；
Wherein, the first paper roll sample is derived from first paper roll.
4. according to the method described in claim 3, it is characterized in that, station corresponding to the adjustment first defective locations
Include after the step of superpressure pressure value：
The second detection position is determined on second paper roll surface, and detects corresponding second hardness in second detection position
Value；Wherein, relative position of second detection position in second paper roll corresponds to first defective locations in institute
State the phase position in the first paper roll；
Judge second hardness number whether in the hardness threshold range, wherein not in the hardness threshold range
Corresponding second check bit of second hardness number is set to the second defective locations；
The pulp fiber content of station corresponding to second defective locations is adjusted, to adjust the paper tension of subsequent paper roll.
5. according to the method described in claim 4, it is characterized in that, station corresponding to the adjustment second defective locations
The step of pulp fiber content, specifically includes：
The stream slurry amount of slurry source corresponding to station locating for second defective locations is adjusted, to adjust the second defective locations institute
Locate the pulp fiber content of the body paper of station subsequent forming, so as to adjust station subsequent forming locating for second defective locations
The hardness number on body paper surface.
6. according to the method described in claim 2, it is characterized in that, detection the first paper roll sample surfaces multiple first
The step of detection corresponding first hardness number in position, specifically includes：
Apply mechanical force respectively in the multiple first detection position of the first paper roll sample surfaces, counts described the
The characteristic information that each first detection position of one paper roll sample surfaces is fed back, obtains hardness profile, the hardness point
Cloth curve includes first hardness number corresponding to each first detection position of the first paper roll sample surfaces.
7. according to the method described in claim 6, it is characterized in that, described judge respectively corresponding to each first detection position
First hardness number whether the step in the hardness threshold range specifically includes：
Institute corresponding to each first detection position of the first paper roll sample surfaces is obtained from the hardness profile
The first hardness number is stated, and is compared respectively with the hardness threshold range.
8. a kind of system applied to paper tension adjustment, which is characterized in that the system can be realized such as claim 1 to 7
Described in any item methods applied to paper tension adjustment.
9. system according to claim 8, which is characterized in that described the system comprises controller and superpressure device
Controller is connect with the superpressure device, and the controller is for controlling the corresponding superpressure of the superpressure device adjustment different station
Pressure.
10. system according to claim 9, which is characterized in that the system further comprises head box, the head box
Corresponding different station is provided with not cocurrent flow slurry nozzle, the head box and connect with the controller, and the controller is for controlling
The stream slurry amount of the different stream slurry nozzles, to control the corresponding pulp fiber content of different station.
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