CN87102985B - Fibre-labyrinth forming device for paper machine - Google Patents
Fibre-labyrinth forming device for paper machine Download PDFInfo
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- CN87102985B CN87102985B CN87102985A CN87102985A CN87102985B CN 87102985 B CN87102985 B CN 87102985B CN 87102985 A CN87102985 A CN 87102985A CN 87102985 A CN87102985 A CN 87102985A CN 87102985 B CN87102985 B CN 87102985B
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- pin
- fan
- aulaeum
- needle plate
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Abstract
The present invention relates to a starching device for a paper machine. Provided with a lead lower-lip plate, the present invention provides a pulp stream homogenizing and evening place outside a pulp flow box, and one row or a plurality of rows of labyrinthic needles are arranged at the upper part of the place, so that fibre in a pulp stream enters a labyrinth in the place. A fibre astatic arrangement state is created and is kept falling on a shaping net, so that paper fibre can be ranged uniformly in an astatic mode.
Description
Technical field that the present invention belongs to
The invention belongs to the wire-cloths forming technique.
The background of invention:
The effect of paper machine quetsch is to send part to the handing-over of moulding section from stream at slurry stream, presumable defective is corrected, and according to the requirement of moulding slurry stream is delivered on the forming web, reaches good starch finishing effect.In existing design theory and practice about quetsch, quetsch is one crest of weir of slurry stream by head box, and is that the work that improvement slurry stream starching state is done all is confined within the head box " crest of weir ".Slurry stream is just only fallen on the forming web by the effect of fluid dynamic force and self gravitation in case disengaging " crest of weir " has gone out head box naturally.At " pulp and paper industry machinery and equipment " (compile in collaboration with by Huanan (South China) Polytechnic College, Tianjin Light Industry College for the technology status of this respect, in November, the 1981 front page printing of light industry publishing house) and in " paper machine-theory structure and design " (Mabron is write, in November, the 1985 front page second impression of light industry publishing house) made detailed introduction.The problem that prior art exists is: what kind of neat and well spaced processing no matter paper pulp pass through in head box, in the end flows in the process of forming web through mouth spray, and it is most by vertical arrangement under the fluid dynamic force effect that the monomer fiber in the slurry stream always can't be avoided.Therefore cause the lateral pull of paper to be starkly lower than longitudinal pulling force.The key that addresses this problem is both to have made after mouth spray flows out head box at slurry stream still to keep the omnidirectional evenly distributed of fiber, does not still have otherwise effective technique at present.
The purpose of invention:
The objective of the invention is to solve paper pulp in the moment that flows out to via mouth spray before dropping on forming web, the monomer fiber is the problem that portrait orientation is arranged more under the fluid dynamic force effect, and the monomer fiber can be fallen on the forming web with even omnidirectional ordered state.
The content of invention:
The technical scheme that the present invention proposes is still the neat and well spaced measure of paper pulp in essence, with the most tangible difference of prior art be neat and well spaced paper pulp outside head box, make fiber omnidirectional evenly distributed and keep this evenly distributed state to fall on the forming web.Basic comprising important document of the present invention has two.The first outside head box, a place is set for slurry stream in case it is carried out neat and well spaced, its two be a kind of homogenate device of design in above-mentioned place neat and well spaced slurry stream.
The method that the outer neat and well spaced place of case is set is to extend aulaeum, makes the relative position of upper and lower labial lamina keep aulaeum leading, the state that interlaces after top lip of slice contracts.The leading position of aulaeum can be used as the outer neat and well spaced place of case.Leading design has two kinds to aulaeum in two prior art documents quoting in front, and a kind of is the aulaeum regular length, and another kind is the aulaeum adjustable length.Introducing the leading effect of aulaeum in the literature is to reduce jet angle β value, makes slurry stream be bordering on " dropping down " and goes to forming web, and dehydration slows down a lot.Document is referred to as " speed moulding " mode.In existing document, the leading understanding that designs of aulaeum is only limited to end.Nobody proposes to utilize the technical conceive of the leading position of aulaeum as the outer neat and well spaced place of case.
Above the leading position of aulaeum, paper pulp is carried out neat and well spaced once again homogenate device can a variety of modes.Can utilize mechanical system: also can utilize physics mode, for example use the ultrasonic wave mode.Neat and well spaced herein requirement mainly is to make fiber omnidirectional evenly distributed, never makes fiber develop into big network or fibrous mass bundle but also will separate.Therefore adopt mechanical system simpler and easy and directly perceived.The concrete practice is with row or some pins of extricating from, regularly the laterally staggered fiber that is vertical arrangement in the paper pulp because of the fluid dynamic force effect of stirring on this position.Fibre stream is through having seemed into " labyrinth " herein, and omnidirectional arrangement is changed in the fiber that a part is vertically arranged in order along the slurry flow path direction, the stirring that is subjected to dial pin.Be outstanding these vivid characteristics of the present invention, the inventor will be used for group pin called after " fan's pin " herein, and claim this homogenate device to be " fibre-labyrinth forming device ".
The technology constitutive requirements of " fibre-labyrinth forming device " have two, the shape of first fan pin itself and the arrangement position of fan's pin.Its two be to fan needle movement control.
Because fan's pin is stirred fiber and is used, so must be very thin; Fan's pin is parallel evenly distributed along the mouth spray outer rim; The spacing of each row fan pin also can not be excessive; When the above fan of two rows pin was arranged, every row is confused the spacing of pin also can not be excessive; The needle point that every row is confused pin keeps same level; Or fan's pin at interval remains on same level according to certain rules; The relative horizontal level of many row fan pin needle points can be regulated; The angle of needle point subtend aulaeum is from vertically regulating to inclination; The spacing of needle point and aulaeum can be regulated; The position of fan's pin can be regulated, and comprising: the distance of fan's pin and mouth spray outer rim is adjustable, and each is adjustable to spacing for a row or the above fan of row pin.These adjustings can be by fan's aciculiform shape and the mode that fan's pin is installed, and the design of the needle plate that fan's pin is installed on it and shape, structure or the connecting modes such as supporting construction form of needle plate solves.For example: fan's pin connects with split nut form and needle plate, can regulate the horizontal level of single piece of needle point; Lifting or rotate a pin plate can regulate one row needle point horizontal level or angle; The needle plate frame is set supports needle plate, needle plate is parallel on the needle plate frame to be moved and spacingly can regulate every row's needle point with the mouth spray outer rim or the spacing of arranging needle point; Needle plate has at least a pin plate laterally to move back and forth along mouth spray outer rim direction when locating on the needle plate frame, realize stirring the fiber in the paper pulp; To be confused the pin type shank of planing that is designed to crank arm, fixedly needle plate only rotates shank and also can regulate needle tip spacing and angle; The fan position of pin on needle plate can be designed as can parallel longitudinal and transverse moving, and both just motionless needle plate also can select to adjust between fan's pin each to spacing by the position of fan's pin; The connection supporting seat of design one-level adjusting plate frame can have hoistway on the supporting seat outside the needle plate frame, and grillage can integral elevating in hoistway, pin all is confused in rotation or translation.The relative fixed position that be to keep fan's pin and aulaeum, the best and head box of the needle plate frame supporting seat of afterbody is become one; But also can break away from head box, as long as guarantee with the relative position of head box fixing.
For increasing the contact area of the paper pulp that fan's pin and aulaeum flow through above, can also correspond to aulaeum on the position of faller gill the pin ditch is set, the pin ditch can allow fan's pin needle point of corresponding faller gill to be deep into below the aulaeum plane, but do not contact with the pin ditch, fan's pin can move back and forth in the pin ditch and can play better even and orderly effect.
Control to fan's needle movement can be mechanically, electromagnetism attracting mode or dynamo-electric combination are finished.So-called control is the reciprocating distance of control fan's pin, i.e. amplitude and reciprocating shake frequency.The most frequently used mechanical system is that an end of removable needle plate is connected with buncher by connecting rod, T type groove offset distance dish, offset distance dish adjusting amplitude, buncher adjusting shake frequency.Electromagnetism attracting mode or other dynamo-electric combination are as long as association's control of the various reciprocating sieve motions of similar mode once just can solve at an easy rate.
The advantage and the good effect of invention:
According to the citing document introduction, homogenate measure in the prior art is only limited in head box.Undoubtedly fully homogenate in head box makes the fiber in the paper pulp be free state as much as possible, improves important measures of Fiber Distribution uniformity coefficient in the fiber pad when being moulding.But in head box, breaking away from even device when mouth spray flows to forming web through fully neat and well spaced paper pulp, the fiber that is free state is under the fluid dynamic force effect, presenting portrait orientation inevitably arranges, thereby destroyed the omnidirectional ordered state of fiber in fully neat and well spaced paper pulp, also just destroyed the isotropism of paper, especially made the longitudinal and transverse pulling force of paper that tangible difference is arranged.
It is that the paper pulp continuation of moulding is in addition neat and well spaced that the present invention proposed head box outside wink, and this technical conceive is that forefathers do not have.Its advantage is to make the monomer fiber that presents the portrait orientation arrangement in the paper pulp under the fluid dynamic force effect recover omnidirectional ordered state, and is keeping this omnidirectional ordered state to drop on the forming web.Its another advantage is to make the network of fibers that might occur in the paper pulp, through neat and well spaced disintegration the once more.The isotropism of Fiber Distribution in fiber pad when above-mentioned advantage has guaranteed moulding.To improving the lateral pull of paper, eliminate vertical, horizontal pulling force difference, have tangible good effect.
The drawing of accompanying drawing with illustrate:
Fig. 1: lost forming principle schematic diagram
The wet end that this figure selects for use is the content of another invention " horizontally arranged multiple fourdrinier paper machine " of inventor.The table roll of minor radius does not change mouth spray to the distance of jet nit point and creates conditions for prolonging aulaeum.To crest shape curve district of generation between the jet nit point, its underpart is by the aulaeum delivery after the ejection pulp flow port for slurries, and vertically orderly arrangement of fiber of upsetting in the suspended substance for the swing of fan's pin intersection creates conditions.Directly fall on the forming web through the neat and well spaced once again fiber of fan's pin, can guarantee the omnidirectional uniform state of Fiber Distribution.
Fig. 2: embodiment fibre-labyrinth forming device shaft side figure.
Illustrate same Fig. 3.
Fig. 3: fibre-labyrinth forming device cutaway view.
Fig. 4 former fan pin warp-wise rotation dismounting, adjusting fan pin schematic diagram.
Moving fan's needle drive mechanism setting position is relative with position shown in Figure 2.
Fig. 5, Fig. 6: fan's pin scheme of installation
Fig. 7, Fig. 8: the method schematic diagram of regulating two row fan pin spacings.
Inventive embodiment
According to basic important document of the present invention, having designed with the head box one can practical a kind of fibre-labyrinth forming device.Its structure is as follows:
Have two row fan pins.One row fixedly title is confused pin surely, and another row can move back and forth and claim moving fan's pin.With the needle plate of the being confused pin surely grillage as moving fan's pin needle plate, the two becomes one.As Fig. 2, shown in Figure 3: being confused the pin needle plate surely is former fuse 3,8, and moving fan's pin needle plate is a faller gill draw runner 3,7.Faller gill draw runner 3,7 can move back and forth in the slide strip slot on the former fuse 3,8.For producing in moving, anti-non-slip nosing 3,7 beats, the pressure pulley gear is arranged on the draw runner cell wall, this device is by pressing pulley 3,2, and copper sheathing 3,3 is bound up on the pulley panel seat 3,6 by pulley pin shaft 3,4 and constitutes, and pulley panel seat 3,6 usefulness screws 3,5 are fixed on the draw runner cell wall.Bind mode such as Fig. 5 of fan's pin and faller gill draw runner or former fuse.Shown in Figure 6.The place that fan's pin is installed on draw runner 3,7 or fuse 3,8 is drilled with screw, and fan's shank top has the spiral shell button can the precession screw, shank is transferred to the position that needs after, with the shank that is locked of the split nut on the shank.Connect fan's pin and draw runner or fuse and can also select other machinery or electromagnetism fixed form for use, belong to general technology and differ one for example.Because the integrative-structure form of draw runner and fuse defines the position of draw runner, regulating the spacing of two row fan pins uses ㄣ shape shank, solves by the mode of rotating the top shank with regard to having selected, as Fig. 7, shown in Figure 8, the spacing of two row fan pins is interior adjustable in the rotating diameter distance of ㄣ shape shank.Because former is to work under the wet environment of papermaking, coats waterproof gland cover pipe 3,9 outside former fuse and draw runner integrative-structure.Sleeve pipe also plays a part to increase the former rigidity.At sleeve pipe 3,9 tops priming cup 3,1 is arranged, the sleeve pipe lower inside has u shape and L shaped two to connect oily canal dish and prevent that lubricating oil from dropping onto on the paper pulp.Support on sleeve pipe 3,9 and the head box connects, and can be in lifting of support adjusted and radially rotation.Faller gill draw runner 3,7 connects T type groove offset distance dish and buncher by the ball head connecting rod that inserts from cannula tip.Regulate and regulate shake frequency by motor, regulate amplitude with the offset distance dish.
Claims (8)
1, a kind of paper machine quetsch.Comprise pressure (type)headbox, become the upper and lower labial lamina that one constitutes mouth spray with head box, upper and lower labial lamina relative position remains on the state that interlaces after aulaeum is leading, top lip of slice contracts, and it is characterized in that parallelly with mouth spray above the leading position of aulaeum is having a row or plurality of rows, is being locked on one or the some pin plates and evenly distributed fan's pin; Fan's pin can also can keep certain inclination angle with aulaeum perpendicular to aulaeum; At least same row's needle point remain on same level or according to certain rules at interval some fan's pins remain on same level; Fan pin needle point and aulaeum remain on that needle point is insinuated among the slurries that flow through on the aulaeum and don't with the aulaeum contact distance; Needle plate is supported by grillage, has at least a pin plate can move back and forth along mouth spray leading edge parallel direction on grillage; Grillage can connect with keep any grillage supporting seat of relative fixed position with head box.
2, quetsch according to claim 1 is characterized in that being confused the pin shank and is shaped as the shape of planing of cranking arm, and the needle point and the shank other end be not on same vertical line, and shank is fixed on the needle plate with split nut.
3, quetsch according to claim 1 is characterized in that needle plate is removable and spacing on the needle plate frame.
4, quetsch according to claim 1, it is characterized in that being confused the position of pin on needle plate can parallel longitudinal and transverse moving.
5, quetsch according to claim 1 is characterized in that needle plate can radially rotate, lock on grillage, the hoistway of allowing the rotation of grillage integrated radial is arranged on the grillage supporting seat, and grillage can optional position locking in slideway.
6, quetsch according to claim 1 is characterized in that the pin ditch corresponding with faller gill arranged on the aulaeum, and the corresponding faller gill needle point of pin ditch permission is insinuated into below the aulaeum plane and don't with needle point and contacts, and needle point can move back and forth in the pin ditch.
7, quetsch according to claim 1 is characterized in that the needle plate that can move back and forth moves back and forth distance, is that amplitude and shake frequency can adopt mechanical system, electromagnetism attracting mode or dynamo-electric combination to realize driving and control.
8, quetsch according to claim 1, it is characterized in that described needle plate has two, wherein one is the faller gill draw runner that can move back and forth, and another is to have a former fuse that allows the faller gill draw runner to inlay the slide strip slot that also can move back and forth betwixt therebetween; Fan's pin connects by spiral and faller gill draw runner or former fuse, and calm with split nut; It is the ㄣ type that fan's pin has row's shank at least; Former fuse and faller gill draw runner combination coat the waterproof gland cover pipe outward; Support on Sealed casing pipe two ends and the head box connects; The faller gill draw runner connects with the T type groove offset distance dish and the driving buncher of sealing shroud outside by linkage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN87102985A CN87102985B (en) | 1987-04-25 | 1987-04-25 | Fibre-labyrinth forming device for paper machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN87102985A CN87102985B (en) | 1987-04-25 | 1987-04-25 | Fibre-labyrinth forming device for paper machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN87102985A CN87102985A (en) | 1988-03-30 |
| CN87102985B true CN87102985B (en) | 1988-05-11 |
Family
ID=4814202
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN87102985A Expired CN87102985B (en) | 1987-04-25 | 1987-04-25 | Fibre-labyrinth forming device for paper machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN87102985B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102009028385A1 (en) * | 2009-08-10 | 2011-02-17 | Voith Patent Gmbh | Method for operating a sheet forming unit and sheet forming unit |
| CN104746377B (en) * | 2013-12-30 | 2018-09-25 | 金红叶纸业集团有限公司 | Head box, paper machine and papermaking process |
| CN106283811B (en) * | 2016-08-18 | 2017-12-15 | 河北永新纸业有限公司 | A kind of finished paper paper water ripples adjusting device |
-
1987
- 1987-04-25 CN CN87102985A patent/CN87102985B/en not_active Expired
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| Publication number | Publication date |
|---|---|
| CN87102985A (en) | 1988-03-30 |
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