CN106192535B - A kind of paper pressing device - Google Patents
A kind of paper pressing device Download PDFInfo
- Publication number
- CN106192535B CN106192535B CN201610584925.4A CN201610584925A CN106192535B CN 106192535 B CN106192535 B CN 106192535B CN 201610584925 A CN201610584925 A CN 201610584925A CN 106192535 B CN106192535 B CN 106192535B
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- CN
- China
- Prior art keywords
- upper roller
- lower roll
- rill
- paper
- roller
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Classifications
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
- D21F3/00—Press section of machines for making continuous webs of paper
- D21F3/02—Wet presses
- D21F3/08—Pressure rolls
- D21F3/086—Pressure rolls having a grooved surface
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
- D21F5/00—Dryer section of machines for making continuous webs of paper
- D21F5/02—Drying on cylinders
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Abstract
The invention discloses a kind of paper pressing device, including the first squeezing roller group, the second squeezing roller group, the 3rd squeezing roller group and drying cylinder, each pair squeezing roller group that are set gradually along paper moving direction include upper roller and lower roll；The surface of upper roller and lower roll is provided with polyurethane rubber-covered layer, it is provided with the polyurethane rubber-covered layer of upper roller, pressure sensor, the outer surface of the polyurethane rubber-covered layer of upper roller and lower roll is provided with blind hole and rill, rill is spirally distributed in the surface of polyurethane rubber-covered layer, blind hole is alternately disposed at polyurethane rubber-covered layer surface with rill, the bottom of rill is provided with two or more vacuum suction eye, the upper roller and lower roll are internally provided with vacuum line, one end of vacuum line is connected to external vacuum extractor, the other end of vacuum line is connected to the vacuum suction eye of each rill bottom by branch line.Paper pressing device dehydration rate of the present invention is high, effectively reduces energy resource consumption, and goes out to squeeze paper flatness height.
Description
Technical field
The present invention relates to paper making equipment field, more particularly to a kind of paper for the l Water Paper in paper-making process to be pressed dry
Pressing device.
Background technology
In existing paper-making process, page goes out the l Water Paper page of wet end still containing 80% moisture after net part forming, must
The further forced dehydration of mechanical expression must be passed through again, while mass dryness fraction is improved, also improve physical property, the optical property of paper
Deng indices, drying section is then entered back into.From the perspective of the energy is saved, press section l Water Paper moisture often reduces by 1%, dries
Portion can steam saving 5%, save expense 10%, so press section should improve page dehydration rate as far as possible；Improve press dewatering effect
Rate, for increase paper machine yield and reduce cost play the role of it is important.
Traditional paper pressure roller are rubber rollers, and its encapsulated outer layer is rubber, and opens up blind hole on the surface of rubber；Blind hole
Pressure roller are made up of the rubber covered roll of rows of blind hole, and the percent openings of rubber rollers can only at most accomplish 25%, the blind hole on roll surface
The water being extruded in paper and woollen blanket can be accommodated in the nip.Or existing pressure roller are entirely grooved press roller, rill pressure
The operation principle for squeezing roller is similar to blind press.The traditional paper pressure roller of the above occur in process of production much asks
Topic, such as：Mass dryness fraction that page goes out squeezing is low, page easily gives a discount, local dehydration is uneven, paper machine operation efficiency is low etc. etc..Cause
This is needed badly is improved to existing paper pressure roller.
The content of the invention
In order to solve the above technical problems, the invention provides a kind of paper pressing device, for solving existing paper squeezing
The problem of roll-in degree of draining is low, page easily gives a discount and filthy water is uneven.
What the present invention was realized in：
A kind of paper pressing device, including first set gradually along paper moving direction squeeze roller group, the second pressure roller
Group, the 3rd squeezing roller group and drying cylinder, each pair squeezing roller group include upper roller and lower roll, and the upper roller is arranged at fixed main frame
On frame, the lower roll is parallel with upper roller to be arranged on slave frame, and upper roller and lower roll are connected with drive device；
The surface of the upper roller and lower roll is provided with polyurethane rubber-covered layer, is provided with and is used in the polyurethane rubber-covered layer of upper roller
The outer surface of the polyurethane rubber-covered layer of the pressure sensor of measurement paper squeeze pressure, upper roller and lower roll is provided with blind hole and ditch
Line, the rill are spirally distributed in the surface of polyurethane rubber-covered layer, and the blind hole is alternately disposed at polyurethane rubber-covered with rill
Layer surface, the percent opening of roller surface are more than 38%, and the bottom of rill is provided with two or more vacuum suction eye, and the upper roller is with
Roller is internally provided with vacuum line, and one end of vacuum line is connected to external vacuum extractor, and the other end of vacuum line leads to
Cross the vacuum suction eye that branch line is connected to each rill bottom.
Further, mounting hole is provided with the middle part of the slave frame, slave frame is articulated with main frame by the mounting hole
On jointed shaft on frame, lower roll is arranged at secondary frame upper end, and secondary central rack is provided with hydraulic cylinder, one end connection master of hydraulic cylinder
Frame, the other end of hydraulic cylinder are connected to secondary central rack, and the lower end of slave frame is provided with air tyre device, one end of air tyre device
It is connected on mainframe, the other end of air tyre device is connected to the lower end of slave frame, and the air tyre device moves with hydraulic cylinder synchronous
Adjust upper roller and the surface spacing of lower roll.
Further, couch roll, the first squeezing roller group, the second squeezing roller group are provided with the side of the described first squeezing roller group
The both sides of 3rd squeezing roller group are provided with paper guide rollers.
Further, the upper roller and the roll neck of lower roll are 2.3~2.7m, and the aperture of the blind hole is 2~3mm, blind hole
Depth be 11mm~13mm.
Further, the number of pressure sensor is more than three on each upper roller or lower roll, and pressure sensor is set
It is placed in the middle part and both sides of the encapsulated layer of urethane.
Further, the upper roller and the drive device of lower roll include motor and decelerator, the rotating shaft of motor
The input shaft of decelerator is connected to, the output shaft of decelerator is connected to upper roller or lower roll.
Beneficial effects of the present invention are：The upper roller of paper pressing device of the present invention and the encapsulated layer material of lower roll are poly- ammonia
Ester, the hardness of polyurethane are much larger than rubber, and roll surface percent opening can reach 40%, and dehydrating amount is big；And use blind hole and rill
It is uneven or the problem of produce fold that alternate setting can avoid page from being dehydrated in nip, and rill bottom is provided with vacuum suction eye and company
Vacuum extractor is connected to, can quickly blot the ponding that paper squeezes out, keeps roll surface to dry, is advantageous to improve dehydration rate；And
In the technical program, pressure sensor is additionally arranged in layer of polyurethane, can be changed by signal and intuitively see very much nip
Line pressure, width, bias etc., it is easy to production regulation and Stress control.
Brief description of the drawings
Fig. 1 is the structural representation of paper pressing device in the specific embodiment of the invention；
Fig. 2 is the structural representation of the first squeezing roller group in specific embodiment of the invention paper pressing device；
Fig. 3 is the attachment structure schematic diagram of mainframe and slave frame in an embodiment；
Fig. 4 is upper roller and lower roll polyurethane rubber-covered layer surface blind hole and the distribution schematic diagram of rill in an embodiment.
Label declaration：
1st, the first squeezing roller group；2nd, the second squeezing roller group；3rd, the 3rd squeezing roller group；4th, drying cylinder；5th, couch roll；6th, guide roller；
7th, paper；11st, upper roller；12nd, lower roll；13rd, mainframe；14th, slave frame；15th, air tyre device；16th, hydraulic cylinder；100th, rill；
110th, polyurethane rubber-covered layer；111st, mounting hole；112nd, jointed shaft；200th, blind hole.
Embodiment
To describe the technology contents of the present invention, construction feature, the objects and the effects in detail, below in conjunction with embodiment
And accompanying drawing is coordinated to be explained in detail.
Fig. 1 and Fig. 2, a kind of paper pressing device of the embodiment of the present invention are referred to, the paper pressing device is included along paper
The first squeezing roller group 1, second that moving direction is set gradually squeezes roller group the 2, the 3rd and squeezes roller group 3 and drying cylinder 4, in the first squeezing
The side of roller 1 is additionally provided with couch roll 5, and the couch roll is used to the wet paper in papermaking wet end being directed into pressing device.Institute
The both sides for stating the first squeezing roller group 1, second squeezing squeezing roller group 3 of roller group 2 and the 3rd are provided with multiple paper guide rollers 6.Paper
After the first squeezing roller group squeezing, cause to be squeezed in the second squeezing roller group 2 and the 3rd squeezing roller group 3 by guide roller 6, most
Steam drying is carried out by drying cylinder again afterwards.
The first squeezing roller group 1 includes frame, upper roller 11 and lower roll 12.Wherein, the frame includes fixed set
The mainframe 13 and slave frame 14 put, the middle part of the slave frame 14 are articulated with mainframe 13, and the upper roller 11 is arranged at master
In frame 13, the lower roll 12 is parallel with upper roller 11 to be arranged on slave frame 14, and the bottom of mainframe 13 and slave frame 14 is set
Air tyre device is equipped with, one end of air tyre device is connected to mainframe, other end auxiliary connection frame, adjusted by the air tyre device
The distance between slave frame 14 and mainframe 13, can adjust gap between upper roller 11 and lower roll 12, and upper roller and lower roll it
Between squeeze pressure, so as to be pressed dry suitable for the paper of different-thickness.Wherein, the air tyre device 15 includes air bag, fills
Distance change amount between gas air bag upper and lower surface is directly proportional to being filled with gas flow.The upper roller 11 and lower roll 12 are connected with driving dress
To put, paper to be pressed dry passes through between upper roller 11 and lower roll 12, and drive device drives the upper roller 11 and lower roll 12 to rotate, from
And draw paper and advance and squeezed dry.Preferably, in the present embodiment, the drive device bag of the upper roller 11 and lower roll 12
Motor and decelerator are included, the rotating shaft of motor is connected to the input shaft of decelerator, and the output shaft of decelerator is connected to
Roller or lower roll.
Likewise, the second squeezing roller group 2 and the 3rd squeezes roller group 3 and also all includes organic frame, upper roller and lower roll, upper roller
It is arranged on mainframe, lower roll is arranged on slave frame.
In the present embodiment, it is described first squeezing roller group 1, second squeeze roller group 2 and the 3rd squeeze roller group 3 upper roller and under
Roller is polyurethane rubber-covered roller, i.e., the surface of described upper roller and lower roll is provided with polyurethane rubber-covered layer (i.e. 110 in Fig. 3), and
The outer surface of polyurethane rubber-covered layer is provided with blind hole 200 and rill 100.Referring to Fig. 4, wherein, the rill 100 is with spiral shell
The rotating surface for being distributed in cylindrical polyurethane rubber-covered layer, and the blind hole 200 be then with rill 100 separately be arranged at it is poly-
The encapsulated surface of layer 110 of urethane, wherein, the percent opening (including blind hole and rill) of polyurethane rubber-covered layer surface reaches more than 38%.
In certain embodiments, the percent opening of the polyurethane rubber-covered layer surface even can reach 40%.
In the present embodiment, using polyurethane as encapsulated layer, the hardness of polyurethane is much larger than the rubber bag glue-line in tradition,
So that the percent opening of roll surface can reach higher limiting value, and higher pressure can be born between upper roller and lower roll, from
And dehydrating amount when greatly improving squeezing.And in the embodiment, rill is to be spirally distributed in cylindrical polyurethane
The surface of encapsulated layer, layer of polyurethane surface can avoid page from being dehydrated in nip using blind hole and the spaced lines of rill
The problem of uneven or generation fold.
Preferably, in the present embodiment, the upper roller and the roll neck of lower roll are 2.3~2.7m, and the aperture of the blind hole is 2
~3mm, the depth of blind hole is 11mm~13mm.Compared with other blind hole sizes, the applicable a variety of different-thickness of the size
Paper squeezes, and the dehydration rate squeezed is optimal.After tested, this paper pressing device can extend the service life of pressure roller, make
Dewatering efficiency improves more than 25%, and goes out to squeeze mass dryness fraction and improve 2% or so than traditional blind-hole roll or fluted roller；Go out simultaneously
The mass dryness fraction height of squeezing improves the operational efficiency of paper machine, reduces steam consumption, beneficial to environmental protection, has saved cost.
In some other embodiments, the roll neck of the upper roller and lower roll can also be other outside 2.3~2.7m
Value, the aperture of the blind hole and depth can be adjusted correspondingly according to paper type.
Also, multiple pressure sensors, the pressure in the present embodiment, are additionally provided with the polyurethane rubber-covered layer
Force snesor is used to detect the squeeze pressure between upper roller and lower roll.In this programme, the pressure sensor is along roller length side
To the middle part and both ends for being arranged at roller, so as to accurately detect the squeeze pressure of upper roller and lower roll diverse location.Another
In embodiment, the number of the pressure sensor is more than 5, and pressure sensor is equally spaced to be arranged on roller length direction.It is logical
Line pressure, width and bias of nip etc. can intuitively be obtained by crossing the pressure sensor, be easy to production to adjust.
In the present embodiment, two or more vacuum suction eye, the upper roller and lower roll are provided with the bottom of the rill
Vacuum line is internally provided with, one end of vacuum line is connected to external vacuum extractor, and the other end of vacuum line passes through
Branch line is connected to the vacuum suction eye of each rill bottom, and the vacuum extractor can be vavuum pump etc..The rill bottom
Portion is provided with vacuum suction eye and is connected to vacuum extractor, can quickly blot the ponding that paper squeezes out, and keeps roll surface to dry, has
Beneficial to the dehydration rate for improving expressing process.
It is different from above-described embodiment, slave frame 14 is to be articulated with by fixed jointed shaft on mainframe 13, by setting
The air tyre device being placed between mainframe and slave frame adjusts the gap of upper roller and lower roll and squeeze pressure.Referring to Fig. 3,
In another embodiment, mainframe 13 is attached with slave frame 14 using the mode of being movably hinged, in the slave frame 14
Middle part is provided with mounting hole 111, and slave frame 14 is articulated with the jointed shaft 112 on mainframe 13 by the mounting hole 111, under
Roller 12 is arranged at the upper end of slave frame 14, and the middle part of slave frame 14 is provided with hydraulic cylinder 16, and one end of hydraulic cylinder 16 connects mainframe 13,
The other end of hydraulic cylinder 16 is connected to the middle part of slave frame 14, and the lower end of slave frame 14 is provided with air tyre device 15, air tyre device 15
One end be connected on mainframe, the other end of air tyre device 15 is connected to the lower end of slave frame, the air tyre device and hydraulic pressure
Cylinder synchronization action adjusts upper roller and the surface spacing of lower roll.In this embodiment, slave can be adjusted by the hydraulic cylinder 16
The articulated position of frame 14 and mainframe 13, so as to improve upper roller and lower roll gap and the Adjustment precision of squeeze pressure.And
The air tyre device 15 and hydraulic cylinder 16 are adjusted in real time by the pressure value that the pressure sensor detects in real time, it is real
Existing paper expressing process continuous precise control.
Embodiments of the invention are the foregoing is only, are not intended to limit the scope of the invention, it is every to utilize this hair
The equivalent structure or equivalent flow conversion that bright specification and accompanying drawing content are made, or directly or indirectly it is used in other related skills
Art field, is included within the scope of the present invention.
Claims (4)
- A kind of 1. paper pressing device, it is characterised in that including set gradually along paper moving direction the first squeezing roller group, the Two squeezing roller groups, the 3rd squeezing roller group and drying cylinder, each pair squeezing roller group include upper roller and lower roll, and the upper roller is arranged at fixation On the mainframe of formula, the lower roll is parallel with upper roller to be arranged on slave frame, and upper roller and lower roll are connected with drive device, described Upper roller and the drive device of lower roll include motor and decelerator, and the rotating shaft of motor is connected to the input shaft of decelerator, The output shaft of decelerator is connected to upper roller or lower roll；The surface of the upper roller and lower roll is provided with polyurethane rubber-covered layer, is provided with the polyurethane rubber-covered layer of upper roller for measuring The outer surface of the polyurethane rubber-covered layer of the pressure sensor of paper squeeze pressure, upper roller and lower roll is provided with blind hole and rill, institute The surface that rill is spirally distributed in polyurethane rubber-covered layer is stated, the blind hole is alternately disposed at polyurethane rubber-covered layer table with rill Face, the percent opening of roller surface are more than 38%, and the bottom of rill is provided with two or more vacuum suction eye, in the upper roller and lower roll Portion is provided with vacuum line, and one end of vacuum line is connected to external vacuum extractor, and the other end of vacuum line is by dividing Bye-pass is connected to the vacuum suction eye of each rill bottom；Mounting hole is provided with the middle part of the slave frame, slave frame is articulated with the jointed shaft on mainframe by the mounting hole On, lower roll is arranged at secondary frame upper end, and secondary central rack is provided with hydraulic cylinder, one end connection mainframe of hydraulic cylinder, hydraulic cylinder The other end be connected to secondary central rack, the lower end of slave frame is provided with air tyre device, and one end of air tyre device is connected to main frame On frame, the other end of air tyre device is connected to the lower end of slave frame, the air tyre device and hydraulic cylinder synchronous action adjustment upper roller With the surface spacing of lower roll；The articulated position of slave frame and mainframe, adjustment upper roller and lower roll gap and squeezing can be adjusted by the hydraulic cylinder The Adjustment precision of pressure；And the air tyre device and hydraulic cylinder are entered by the pressure value that the pressure sensor detects in real time Row adjustment in real time, realizes that paper expressing process continuous precise controls.
- 2. paper pressing device according to claim 1, it is characterised in that set in the side of the described first squeezing roller group There is couch roll, the both sides of the first squeezing roller group, the second squeezing roller group and the 3rd squeezing roller group are provided with paper guide rollers.
- 3. paper pressing device according to claim 1, it is characterised in that the upper roller and the roll neck of lower roll be 2.3~ 2.7m, the aperture of the blind hole is 2~3mm, and the depth of blind hole is 11mm~13mm.
- 4. paper pressing device according to claim 1, it is characterised in that pressure sensing in each upper roller or lower roll The number of device is more than three, and pressure sensor is arranged at the middle part and both sides of the encapsulated layer of urethane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610584925.4A CN106192535B (en) | 2016-07-22 | 2016-07-22 | A kind of paper pressing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610584925.4A CN106192535B (en) | 2016-07-22 | 2016-07-22 | A kind of paper pressing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106192535A CN106192535A (en) | 2016-12-07 |
| CN106192535B true CN106192535B (en) | 2017-11-14 |
Family
ID=57491607
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610584925.4A Active CN106192535B (en) | 2016-07-22 | 2016-07-22 | A kind of paper pressing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106192535B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111379182A (en) * | 2020-04-02 | 2020-07-07 | 陈良地 | Preparation method of corrugated paper special for buffer packaging of antibacterial and mildewproof fruits and vegetables |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FI85733C (en) * | 1989-05-02 | 1992-05-25 | Valmet Paper Machinery Inc | KOMBINATION AV PRESSPARTIET OCH BEGYNNELSEDELEN AV TORKNINGSPARTIET I EN PAPPERSMASKIN. |
| FI892705A (en) * | 1989-06-02 | 1990-12-03 | Ahlstroem Valmet | PRESS SPRING FOER EN PAPPERS-, KARTONG- ELLER CELLULOSATORKNINGSMASKIN. |
| DE19722638A1 (en) * | 1997-05-30 | 1998-12-03 | Voith Sulzer Papiermasch Gmbh | Press jacket for a press device |
| US6981935B2 (en) * | 2002-09-12 | 2006-01-03 | Stowe Woodward, L.L.C. | Suction roll with sensors for detecting temperature and/or pressure |
| US7572214B2 (en) * | 2005-05-04 | 2009-08-11 | Stowe Woodward L.L.C. | Suction roll with sensors for detecting operational parameters having apertures |
| CN203569382U (en) * | 2013-10-31 | 2014-04-30 | 东莞理文造纸厂有限公司 | Improved press roll |
| CN203700860U (en) * | 2013-12-24 | 2014-07-09 | 上海东冠纸业有限公司 | Vacuum support roller with novel structure |
| CN204080535U (en) * | 2014-08-14 | 2015-01-07 | 唐山市天正实业有限公司 | Cop tube paper pressing device |
| CN205347879U (en) * | 2016-01-20 | 2016-06-29 | 维达纸业（中国）有限公司 | Vacuum roll |
-
2016
- 2016-07-22 CN CN201610584925.4A patent/CN106192535B/en active Active
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| Publication number | Publication date |
|---|---|
| CN106192535A (en) | 2016-12-07 |
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Address after: 363900 official Hill Industrial Park, Wuan Town, Changtai County, Zhangzhou, Fujian Patentee after: Shanying South China Paper Co., Ltd Address before: 363900 official Hill Industrial Park, Wuan Town, Changtai County, Zhangzhou, Fujian Patentee before: FUJIAN LIANSHENG PAPER INDUSTRY Co.,Ltd. |
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