CN1086565A - The stepped diffuser of head box and pulp feeding system and processing method thereof - Google Patents
The stepped diffuser of head box and pulp feeding system and processing method thereof Download PDFInfo
- Publication number
- CN1086565A CN1086565A CN 93114134 CN93114134A CN1086565A CN 1086565 A CN1086565 A CN 1086565A CN 93114134 CN93114134 CN 93114134 CN 93114134 A CN93114134 A CN 93114134A CN 1086565 A CN1086565 A CN 1086565A
- Authority
- CN
- China
- Prior art keywords
- stepped diffuser
- section
- feeding system
- stepped
- diffuser
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Landscapes
- Paper (AREA)
Abstract
A kind of stepped diffuser that is used for slurry rectification of paper machine head box cloth and pulp feeding system voltage stabilizing degasification adopts the injection moulding Method for bonding to make with pmma material.The previous paragraphs of ladder is the circular port of band tapering, final stage is the square opening of band tapering, the wall of stepped diffuser monomer is hollow wall, the method of processing stepped diffuser is the section that first merogenesis injects the different cross section shape need, bonding again one-tenth stepped diffuser monomer becomes monomeric adhesion the cloth slurry rectifier cell piece of head box or the damping element piece of pulp feeding system then on demand.This stepped diffuser not only can improve the cloth slurry rectification performance before the paper stock online and the damping voltage stabilizing degasification performance of pulp feeding system, avoids hanging and clogging, and easy to process, precision is high.
Description
The present invention relates to be used in the head box (or net groove) before the online of fourdrinier machine or cylinder mould machine paper stock damping voltage stabilizing, degasification, poly-stepped diffuser and the processing method thereof of loosen collagen fibre wadding that rectification of cloth slurry and pulp feeding system are used for slurry.
At present, the stepped diffuser that is used for cloth slurry rectification in the paper machine head box both at home and abroad all is to process with stainless steel, copper material monoblock, as " Paper Trade, Journal " Nov.30,1983 and 74/TAPPI Seminar Notes(1989) the employed stepped diffuser of head box introduced all is to process with the stainless steel material monoblock, the employed stepped diffuser of domestic in recent years some newly-designed paper machine head box also all is to imitate abroad to form with monoblock stainless steel, materials processing such as copper.Its process is to get out different rank, aperture on whole block material, thereby obtains a stepped diffuser integral body, is respectively d as the processing aperture
1, d
2, d
3The syllogic stepped diffuser, be that to get out the aperture on whole block material be d
1First section, getting out the aperture then is d
2Second section, getting out the aperture again is d
3The 3rd section, the structure of gained stepped diffuser is as shown in Figure 1.The stepped diffuser that processes with monoblock stainless steel or copper material, though process not difficult, but the concentricity in each hole, rank, the centre-to-centre spacing on adjacent rank and the depth of parallelism then are difficult to accomplish accurate unanimity, and the circular port that can only process straight shape, the high-effect stepped diffuser of producing band tapering and square opening just is difficult to realize, this not only influences its cloth slurry performance, and the processing and fabricating cost is also very high.
The object of the present invention is to provide a kind of damping that can improve cloth slurry rectification performance before the paper stock online and pulp feeding system to eliminate the stepped diffuser of pressure fluctuation performance, solve existing stepped diffuser weak effect and be easy to generate hanging and the problem of clogging in use; The present invention also aims to stepped diffuser machining accuracy at existing processing method not high, be difficult to process band tapering and the high-effect stepped diffuser of square opening and the defective of cost of manufacture costliness, a kind of processing method of brand-new stepped diffuser is provided.
Stepped diffuser lucite of the present invention is a material, adopt the bonding processing technology of injection moulding of blocking, the previous paragraphs of ladder is the circular port of band tapering, final stage is the square opening of band tapering, the wall of stepped diffuser monomer is hollow wall, and promptly the thickness of the lucite entity of every section wall is identical or close.Stepped diffuser injection moulding Method for bonding processing technology of the present invention is the section that first merogenesis injects the different cross section shape need, bonding again one-tenth stepped diffuser monomer, or the injection moulding of blocking monomer, as required monomeric adhesion is become the cloth slurry rectifier cell piece of head box or the damping element piece of pulp feeding system then.
Because the lucite fusing point is not high, good mobility is arranged, very high surface smoothness is arranged after the injection moulding, need not injection-molding surfaces is carried out processed again, and the surface charge of the lucite characteristics identical with the paper stock fiber, select for use lucite as stepped diffuser material and injected plastics material, can solve stepped diffuser surface smoothness that stainless steel and copper material etc. make with machine-tooled method low and different and the hanging and the blocking problem that produce with the fiber surface electric charge.
Each section of ladder of stepped diffuser of the present invention all has certain tapering, the demoulding when not only being convenient to injection moulding, and can produce in use that intensity is big, the microturbulent motion of small scale, loosen collagen fibre promptly has efficient performance effectively.
Stepped diffuser monomer final stage of the present invention adopts square opening, is the VELOCITY DISTRIBUTION uniformity when guaranteeing that paper stock leaves ladder and enters the pond, weir, the generation of shortening the commutating zone length in the pond, weir and preventing to flow over.
Because the aperture and the cross-sectional sizes difference of each section of stepped diffuser, pore wall thickness is also different, for the contraction that guarantees injection moulding after coagulation process can equate, to guarantee the injection moulding precision, do not produce distortion, the wall of stepped diffuser monomer is designed to hollow wall, makes the thickness of lucite entity of every section wall identical or close.
The present invention adopts the merogenesis injection moulding, bonding again one-tenth stepped diffuser monomer, and then be bonded into the processing technology of piece, be about to stepped diffuser and carry out blocking, be owing to the stepped diffuser monomer with same mold injection can guarantee that not only its geomery is identical, and in the mould design, be provided with between each Butt Section and dock retainer ring accurately, thereby it is not only easy to make, and can guarantee the machining accuracies such as concentricity, the depth of parallelism and centrad of each sector hole exactly, can also make the stepped diffuser of irregularly-shaped hole such as square opening, low cost of manufacture more conveniently.
Each injection moulding section of stepped diffuser monomer of the present invention adopts the injection machine of existing larger capacity just can carry out injection moulding, the adhesive of bonding each section of ladder and bonding stepped diffuser monomer is the existing adhesive that is used for bonding lucite, as 501 glue, 502 glue, chloroform, phenol solution, carrene etc.
Fig. 2 is to be the structural representation that example is described in further detail stepped diffuser monomer structure of the present invention with the syllogic stepped diffuser; Fig. 3 is the structural representation of the stepped diffuser piece integral body that forms with the stepped diffuser monomeric adhesion, and wherein Fig. 3 a is a front view, and Fig. 3 b is a vertical view.
As shown in Figure 2, the stepped diffuser monomer constitutes by first section 1, second section 2, the 3rd sections 3, from its sectional view as can be known, first, second section is a circular port, the 3rd section is square hole, each section all has certain tapering, and the lucite solid thickness of each section wall is close, and promptly stepped diffuser monomer wall is hollow wall.
The inventor finds through exploratory experiment, stepped diffuser of the present invention is good with three sections, the syllogic stepped diffuser can satisfy the cloth slurry rectification requirement of domestic general paper machine, not necessarily receive better effect more than three sections stepped diffusers, but can bring the trouble in the manufacturing, the best draw ratio of syllogic stepped diffuser is: first section is 6～8, second section is 4～6, the 3rd section is 3～5, the best tapering of its each section is: first section semi-cone angle is 0.5～2.5 °, second section semi-cone angle is 0.8～3.5 °, and the 3rd section semi-cone angle is 2.0～5.0 °.
Adding man-hour, can be a joint with first and second section, and the 3rd section is carried out injection moulding for another joint, also can first, second and third section distinguish injection moulding, with 1,2, the 3 bonding one-tenth monomer shown in Figure 2 of first, second and third section, on demand monomeric adhesion is become stepped diffuser integral body at last, as shown in Figure 3 then.
Adopt method of the present invention also can make stepped diffusers such as four-part form, five-part form, six segmentations.
In sum, the present invention compared with prior art has following advantage:
1, is raw material with lucite, adopts the bonding processing technology of injection moulding of blocking, can guarantee that geomery and machining accuracy accurately can prevent the hanging and the clogging of use again.
2, be convenient to make the stepped diffuser of band tapering and irregularly-shaped hole, obtain cloth slurry rectification efficiently and damping.
3, can carry out bondingly on demand, be convenient to the seriation of product, cost is low.
Be used for 1092～1880 graph paper machines, produce general cultural paper, the speed of a motor vehicle is the syllogic stepped diffuser of 100～250 meters/minute head box, its structure such as Fig. 2, shown in Figure 3, and physical dimension is as follows:
First section: circular port, d
1=12mm, d
1'=15.5mm
L
1=90mm, semi-cone angle α
1=1.1 °
Second section: circular port, d
2=20mm, d
2'=23.5mm
L
2=90mm, semi-cone angle α
2=1.1 °
The 3rd section: square hole, 28 * 28/ 39.5 * 39.5mm
L
3=100mm, semi-cone angle α
3=3.3 °
Add man-hour, with first, second section is a joint, the 3rd section is carried out injection moulding for another joint, then with chloroform with this two the joint bonding one-tenth stepped diffuser monomer, again monomeric adhesion is become piece and around it, be stained with stiffener stepped diffuser integral body as shown in Figure 3, at last inlet end face and installation mating surface are carried out machined.
Present embodiment can be used for 1760 millimeters long mesh paper making machines, and the speed of a motor vehicle is 120～140 meters/minute head box cloth slurry rectification, and the physical dimension that stepped diffuser is bonding is:
B＝2000mm
L＝280mm
H＝107mm
h＝87.2mm
Being used for the speed of a motor vehicle is the damping block of 120～200 meters/minute pulp feeding system current stabilization depassing units, is the two-period form stepped diffuser, and its structure as shown in Figure 4, wherein Fig. 4 a is a front view, and Fig. 4 b is a vertical view, among the figure, first section 4 is circular ports, and second section 5 is square openings, and the monomer whose physical dimension is as follows:
First section: d
1=15mm, d
1'=22mm, L
1=90mm, semi-cone angle α
1=2.2 °
Second section: 28 * 28/ 43.5 * 43.5, L
2=100mm, semi-cone angle α
2=3.3 °.
Add man-hour, divide two joint injection mouldings, bonding again one-tenth monomer, then on demand with adhesive with monomeric adhesion become piece and around add upper sealing panel and make damping block integral body, as shown in Figure 4, its physical dimension is as follows:
D＝800mm
H＝180mm
S＝43.6mm
Also can be made into syllogic stepped diffuser damping block on demand, at this moment, first and second section is a circular port, and as an injection moulding joint, the 3rd section is square opening, and as another injection moulding joint, bonding one-tenth stepped diffuser monomer is bonded into damping element piece integral body again after the injection moulding.
Claims (3)
1, a kind of stepped diffuser that is used for paper machine head box and pulp feeding system, it is characterized in that first merogenesis injects the section of different cross section shape need, bonding again one-tenth stepped diffuser monomer becomes monomeric adhesion the cloth slurry rectifier cell piece of head box or the damping element piece of pulp feeding system then.
2, a kind of stepped diffuser that is used for head box and pulp feeding system is characterized in that adopting pmma material, and the previous paragraphs of ladder is the circular port of band tapering, and final stage is the square opening of band tapering, and the wall of stepped diffuser monomer is hollow wall.
3,, it is characterized in that the physical dimension of syllogic stepped diffuser monomer is according to the stepped diffuser of claim 2:
First section: draw ratio is 6～8, and semi-cone angle is 0.5～2.5 °
Second section: draw ratio is 4～6, and semi-cone angle is 0.8～3.5 °
The 3rd section: draw ratio is 3～5, and semi-cone angle is 2～5 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93114134 CN1030147C (en) | 1993-11-04 | 1993-11-04 | Ladder spreader of fluid box and supply system and its processing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93114134 CN1030147C (en) | 1993-11-04 | 1993-11-04 | Ladder spreader of fluid box and supply system and its processing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1086565A true CN1086565A (en) | 1994-05-11 |
| CN1030147C CN1030147C (en) | 1995-10-25 |
Family
ID=4990406
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93114134 Expired - Fee Related CN1030147C (en) | 1993-11-04 | 1993-11-04 | Ladder spreader of fluid box and supply system and its processing method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1030147C (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101666702B (en) * | 2009-09-21 | 2011-06-08 | 浙江大学 | Test device of performance test of stepped diffuser of headbox |
| CN103437235A (en) * | 2013-08-08 | 2013-12-11 | 华南理工大学 | Hydraulic visualized isobaric step diffuser headbox for experimental headbox |
| CN103669076A (en) * | 2013-12-23 | 2014-03-26 | 云南中烟昆船瑞升科技有限公司 | Efficient pulp and water mixing device |
| CN106351053A (en) * | 2016-08-26 | 2017-01-25 | 大连瑞光非织造布集团有限公司 | Laddering mixed process for producing washable and degradable spunlace non-woven fabric |
| CN109183488A (en) * | 2018-10-15 | 2019-01-11 | 维达纸业(浙江)有限公司 | A kind of head box and its remodeling method |
-
1993
- 1993-11-04 CN CN 93114134 patent/CN1030147C/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101666702B (en) * | 2009-09-21 | 2011-06-08 | 浙江大学 | Test device of performance test of stepped diffuser of headbox |
| CN103437235A (en) * | 2013-08-08 | 2013-12-11 | 华南理工大学 | Hydraulic visualized isobaric step diffuser headbox for experimental headbox |
| CN103669076A (en) * | 2013-12-23 | 2014-03-26 | 云南中烟昆船瑞升科技有限公司 | Efficient pulp and water mixing device |
| CN106351053A (en) * | 2016-08-26 | 2017-01-25 | 大连瑞光非织造布集团有限公司 | Laddering mixed process for producing washable and degradable spunlace non-woven fabric |
| CN109183488A (en) * | 2018-10-15 | 2019-01-11 | 维达纸业(浙江)有限公司 | A kind of head box and its remodeling method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1030147C (en) | 1995-10-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| GB2023488A (en) | Metal die for injection moulding | |
| CN1086565A (en) | The stepped diffuser of head box and pulp feeding system and processing method thereof | |
| DE60017409D1 (en) | FUEL CELL COLLECTOR PLATE WITH IMPROVED CONDUCTIVITY AND METHOD FOR THE PRODUCTION THEREOF | |
| US5041258A (en) | Injection process for long fiber-containing resin | |
| CN200981326Y (en) | Injection molding and compression molding double technique die with choked flow core | |
| CN100476369C (en) | Small diameter winding pipe flow rate sensor processed by plastics molding process | |
| CN2763014Y (en) | Mould for producing composite shaped material with its covering material | |
| CN105643896B (en) | Short fiber reinforced remanufactures tire tread extrusion molding apparatus | |
| CN211217345U (en) | Gluing die head | |
| CN1510323A (en) | Porous pipe and pipe connector, manufacturing method thereof | |
| JPH09296053A (en) | Fiber-reinforced thermoplastic resin molding | |
| CN207028068U (en) | A kind of audible component mould | |
| JPH0557741A (en) | Injection molding of thermoplastic resin | |
| CN215203375U (en) | High-cleanness polyethylene pipe processing device | |
| CN111633943A (en) | Wide-width film extrusion molding machine head device based on extruder | |
| CN214645516U (en) | Walk balanced porous plastic mould of gluing | |
| CN218931977U (en) | Half type dry-to-wet wire drawing coating die | |
| CN219028204U (en) | Multicavity extrusion die | |
| CN205241866U (en) | Spinneret plate | |
| DE59700734D1 (en) | METHOD FOR PRODUCING CELLULOSIC MOLDED BODIES | |
| CN215320314U (en) | Improve three-plate mold structure of efficiency of moulding plastics | |
| CN214395201U (en) | High-precision injection molding mechanism | |
| CN110253852A (en) | Collapsible broad-amplitude film extrusion die design method | |
| CN213166767U (en) | Pre-opening type assembly for reinforcing combination of composite rubber | |
| CN211542202U (en) | Glue injection mold |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| C10 | Entry into substantive examination | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |