CN106567297A - Process for paper molding homogenate and silk screen self-cleaning and die structure - Google Patents
Process for paper molding homogenate and silk screen self-cleaning and die structure Download PDFInfo
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- CN106567297A CN106567297A CN201610906200.2A CN201610906200A CN106567297A CN 106567297 A CN106567297 A CN 106567297A CN 201610906200 A CN201610906200 A CN 201610906200A CN 106567297 A CN106567297 A CN 106567297A
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- Prior art keywords
- suction
- vacuum
- mould
- silk screen
- cleaning
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Classifications
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21J—FIBREBOARD; MANUFACTURE OF ARTICLES FROM CELLULOSIC FIBROUS SUSPENSIONS OR FROM PAPIER-MACHE
- D21J5/00—Manufacture of hollow articles by transferring sheets, produced from fibres suspensions or papier-mâché by suction on wire-net moulds, to couch-moulds
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
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Abstract
The invention belongs to the paper molding production field, and relates to a process for paper molding homogenate and silk screen self-cleaning and a die structure. The process solves the problem that the slurry concentration in an existing paper molding technology isn't uniform, and fiber hangs for accumulation on a suction wire mesh, causing a waste. The invention discloses a method of arranging a suck port in the middle of the die to let air flow opposite to the vacuum suction filter air flow in. While homogenating, the vegetable fiber hung on the mesh is taken away; lifting the paper molding production continuity and stability; at the same time, the intensity of the finished product and the fiber distribution uniformity are guaranteed.
Description
Technical field
The invention belongs to Paper moulded production field, is related to the production technology and production equipment of moulded paper pulp product, especially relate to
And the self-cleaning process of a kind of homogenate of Paper moulded and silk screen and mould structure.
Background technology
With the Paper moulded product that annual herb plant fiber is made as primary raw material, defending for modern society has been adapted to
Raw, convenient, fast, healthy life requirement, so that its is practical, nontoxic, after discarded can degradable, back to nature the characteristics of, have
Vast potential for future development.The moulded paper pulp product of China is with the herbaceous plant fiber pulp such as extensive reed, bagasse, wheat straw of originating
Or it is primary raw material that discarded paper product reclaims slurry, essential naturally pure, once it is discarded can natural degradation, thus paper mould industry is
A kind of environmental protection industry for being conducive to Sustainable Socioeconomic Development, suffer from home, in the world huge consumption demand with it is wide
Wealthy growth space.The Paper moulded industry of China is started in the industry in last century the eighties, or an emerging growth,
There are many very big Growth Development spaces at aspects such as technique, structure, mould, materials.
In the technical process of moulded paper pulp product production, it is exactly vacuum that molding procedure is also for first the most key operation
Adsorb, manufacture paper with pulp into wet base, its quality, breakage rate, energy consumption, production efficiency to paper mould product etc. plays decisive role.
In the forming method of moulded paper pulp product, vacuum mould-suction is placed on prepare in slurries, the fiber in slurries is in vacuum
The wire being fixedly installed on vacuum mould-suction body under swabbing action or pressure (hydraulic coupling, compressed air pressure) push effect
By woven wire detention during net, string is uniformly piled up on the woven wire surface of shaping, layer by layer deposition, mutually twine and lead,
Form wet base.The quality of this wet base quality is that the uniformity coefficient being distributed by the homogeneity degree or fiber of product judges.And this is even
Matter and uniformity coefficient are to need to copy the omnidirectional arranged evenly of fiber in the slurries before base just to obtain.But, the nothing of fiber
Align and only apply enough stirrings in the extremely dilute fiber suspension of concentration with even cloth and could realize that it shows as fiber
The dynamic equilibrium of the diffusion on all directions of suspended substance, this kind of dynamic balance state be theoretically concentration of slurry 0.05% with
Under just be capable of achieving；And the concentration of slurry of paper mould can far above this, typically can be 0.5% or even more than 1.2%, in theory
Omnidirectional arrangement of the fiber in slurries can not possibly be obtained with even cloth into base process conditions.
Required according to moulding process, the wet base (parison) of oneself shaping is shifted to subsequent processing, but, depart from net mould in wet base
Afterwards, a number of string also always more or less is stayed on a wire mesh by extension.With the continuation of production, time
Passage, fiber can separately gather on silk screen surface, and in the accumulation region of fiber, the wet base that can make subsequent forming produces defect, with
Become waste product to there is hole.The processing mode universal to this phenomenon is exactly to latter work in each wet base being molded in industry
After sequence transfer, or produce after the circulation of certain number of times, it is necessary to production cycle pauses a period of time, in an automatic fashion or with manual
Mode, with High-Pressure Water to woven wire surface erosion.This processing mode is that Paper moulded is universal adopted in the industry, but it is deposited
Problem be：First, needing to make production pause, flushing is finished and could enter subsequent cycle, affects production efficiency and production to connect
Continuous property；Second, the effect actually rinsed is unsatisfactory, because High-Pressure Water rinses direction and into water body quilt in slurries during base
It is identical that vacuum suction filter after silk screen filter copies the moving direction of the liquid air-flow of base, so more difficult change fiber is on silk screen
Lash state.
With regard to the slurries homogenate operation in paper mould production, at present the automatic moulding machine of country's Paper moulded industry is manufactured paper with pulp
During the vacuum mould-suction of parison or the parison for occurring that oneself manufactures paper with pulp in running in lifting are shifted to next station, or
It is occur that new slurries are supplemented in stock tank so as to during causing the continuous rising of slurries and reducing, at these in stock tank
During a kind of power source of slurries motion can be provided, the production efficiency of automatic machine is higher, die station motion or slurries admission velocity
It is faster, there is provided bigger to the kinetic energy of slurries, but have the disadvantage that the upheaval of resulting slurries is (with die station motion side with certain
To and slurries approach axis it is similar) reciprocating motion of directionality, so the fiber condition in slurries also to a certain degree formed with
Slurries move back and forth approximate orientation, thus can have a strong impact on quality of item.
Therefore, for deficiency of the prior art, it is necessary to provide a kind of Paper moulded homogenate and silk screen self-cleaning technique side
Method and mould structure.
The content of the invention
For above-mentioned technical problem, the technical problem to be solved is to copy base technology, spy for existing Paper moulded
It is not the deficiency of existing Paper moulded homogenate and the self-cleaning technology of silk screen, proposes the self-cleaning process of a kind of Paper moulded homogenate and silk screen
And mould structure, solve to lack because string accumulation causes on a wire mesh the wet base of subsequent forming to produce in prior art
Fall into, so that hole occur and become the problem of waste product.
To solve above-mentioned technical problem, what technical solution of the invention was realized in：
The self-cleaning process of a kind of Paper moulded homogenate and silk screen, it is characterised in that：It is first before vacuum suction filter manufactures paper with pulp wet base
First vacuum mould-suction is entered after preparing in the slurries for completing, is secondly blown into air-flow at the pressure-vaccum mouth in die bottom plate centre position,
Air-flow copies the in opposite direction of base air-flow with vacuum suction filter, and air-flow sequentially passes through pore, the wire on bottom cavity, vacuum mould-suction die body
Enter in slurries after net..
Further, the pressure of the air-flow is 0.15～0.85Mpa.
Further, it is characterised in that：The entry time of the air-flow is 0.2～1.2s.
A kind of mould structure for implementing the self-cleaning process of Paper moulded homogenate and silk screen, including die bottom plate 2 and setting
Bottom cavity 9 is formed when vacuum mould-suction 3 on die bottom plate 2, die bottom plate 2 and vacuum mould-suction 3 are combined, it is characterised in that mould
It is provided with pressure-vaccum mouth 1 on base plate 2 to enter for the vacuum pneumatic that air-flow and negative pressure of vacuum suction strainer copy base, on the die body of vacuum mould-suction 3
Several pores 4 are provided with, the surface of vacuum mould-suction 3 is laid with woven wire 5, and vacuum mould-suction 3 is placed in the slurry for being full of into slurries 7
Carry out copying base in pond 6.
Further, the woven wire 5 is fixed on the surface of the vacuum mould-suction 3 by silk screen fixed plate 8.
Beneficial effects of the present invention：
The process and mould structure that the Paper moulded that the present invention is provided is homogenized and silk screen is self-cleaning mutually ensures that scarce one is not
Can.Pressure-vaccum confession is opened up in the centre position of die bottom plate and copy the contrary air-flow entrance of base airflow direction with vacuum suction filter, at this
When stock air-flow is diffused up, countless minute bubbles, little vortex are formed in slurries, last minute bubbles, little vortex float in slurries
Constantly rupture in diffusion process, and the gas diffusion active force for rupturing makes the string that original is suspended in slurries equally can be formed
It is each to unordered distribution, be that vacuum suction filter hereafter copies base and creates a good slurry environments；
At the same time, because air-flow and vacuum suction filter copy base airflow direction conversely, during Diffusion of gas stream can it is previous oneself
Dynamic circulation may hang when copying base suction strainer stays the string involved on a wire mesh to copy base liquid gas moving direction phase with former suction strainer
Anti- direction is pulled away, i.e., so-called silk screen is self-cleaning, is that continuously and stably output high-quality manufactured goods create a good technique
Environment.
Description of the drawings
Fig. 1 is the schematic diagram that negative pressure suction strainer of the present invention copies the mould structure under billet state
Fig. 2 is that negative pressure of the present invention drags for the structural representation that slurry copies mould under billet state
In figure：
1：Pressure-vaccum mouth 2：Die bottom plate 3：Vacuum mould-suction
4：Pore 5：Woven wire 6：Stock tank
7：Slurries 8：Silk screen fixed plate 9：Bottom cavity
Specific embodiment
The structure and operation principle of the present invention are described in further detail with reference to the accompanying drawings and examples.
A kind of mould structure self-cleaning for Paper moulded homogenate and silk screen that the present invention is provided includes die bottom plate 2 and arranges
Vacuum mould-suction 3 on die bottom plate 2, die bottom plate 2 and vacuum mould-suction 3 form bottom cavity 9 after combining, wherein, die bottom plate 2
Middle part is provided with pressure-vaccum mouth 1 and enters for the vacuum pneumatic that high pressure draught and negative pressure of vacuum suction strainer copy base, the mould of vacuum mould-suction 3
Several pores 4 are provided with body, the surface of vacuum mould-suction 3 is laid with the woven wire 5 fixed by silk screen fixed plate 8, vacuum
Suction mould 3 is placed in the stock tank 6 for be full of into slurries 7 and carries out copying base.The present invention vacuum mould-suction 3 can be provided with it is multiple, respectively with mould
Tool base plate 2 forms respective bottom cavity 9, offers the supply of pressure-vaccum mouth 1 respectively on the corresponding die bottom plate 2 of bottom cavity and flows into or out；One
Each vacuum mould-suction of secondary shaping more than one piece parison is in same stock tank 6 being completed for slurry, homogenate, silk screen by identical moulding process
Self-cleaning, suction strainer copies the moulding process program such as base, transfer.Each vacuum mould-suction 3 of one-shot forming more than one piece parison can each split,
Many die body conjuncted structures.
The technique that the Paper moulded that the present invention is provided is homogenized and silk screen is self-cleaning is specific as follows：Moulded paper pulp product production process,
After entering into before vacuum suction filter manufactures paper with pulp wet base, by vacuum mould-suction 3 in the slurries 7 for preparing, vacuum mould-suction 3 can be as in Fig. 1
" negative pressure suction strainer copies base " shown in state copy base, it is also possible to the state as shown in " negative pressure is dragged for slurry and copies base " in Fig. 2 copies base.First to
It is provided with the pressure-vaccum mouth 1 of the die bottom plate 2 of vacuum mould-suction 3 and is rapidly feeding one high pressure draught, the time span that air-flow is sent into
Can be control with the pressure of air-flow, each data be according to the depth of slurries liquid level, the concentration of slurries, die body pore distribution
Situation is selected.The time span that gas is sent into is 0.2～1.2S, time span preferred 0.2s, 0.7s, 1.2s of feeding；Air-flow
For high pressure draught, pressure is 0.15～0.85Mpa, it is further preferred that desirable 0.15Mpa, 0.5Mpa, 0.65Mpa and
0.85Mpa.This strand of high pressure draught, can be by arranging in diffusion process by entering after pressure-vaccum mouth 1 to surrounding diffusion in bottom cavity 9
Several pores 4 on vacuum mould-suction 3 simultaneously spread in slurries 7 through woven wire 5 to surrounding, enter into and starch in slurries 7
Numerous air-flow bodies float naturally to liquid level direction.In the process slurries can be increasingly to the restraining force of the air-flow in this diffusion
Little, the pore 4 that the air-flow of former sub-thread is numerous on the die body of vacuum mould-suction 3 forms numerous air-flow bodies, and continues in slurries 7
Diffusion, forms countless minute bubbles, little vortex, last this countless minute bubbles, little vortex in slurries 7 in floating diffusion process,
During this slurries to this diffusion in air-flow restraining force can because of shoaling for level therewith diminishing for water pressure and get over
Come less, therewith bubble can increase, until rupture, and the rent of each minute bubbles is each to there is a gas to expand in slurries 7
Scattered active force, makes the string that original is suspended in slurries 7 equally understand shape in the successive and unordered rupture of numerous minute bubbles
It is that vacuum suction filter hereafter copies base and creates a good slurry environments into each to unordered distribution；At the same time, this
Stock copies the entrance of the contrary high pressure draught of base airflow direction with vacuum suction filter, can be by previous automatic cycle during Diffusion of gas stream
May hang when copying base suction strainer and stay the string involved on woven wire 5 to destroy the contrary side of base liquid gas moving direction with former suction strainer
To being pulled away, i.e., the self-cleaning technique of so-called silk screen, is that continuously and stably output high-quality manufactured goods create a good technique ring
Border.
Vacuum mould-suction 3 can the state as shown in " negative pressure suction strainer copies base " in Fig. 1 copy base, it is also possible to such as " the negative pressure in Fig. 2
Drag for slurry and copy base " shown in state copy base.The final molding mode of the present invention is that product convex surface is outside, such as fruit product require concave surface to
Outer form copies base, and the process of the present invention is equally applicable.The Figure of description of the present invention be the outside just suction of convex surface with it is negative
The pattern of suction, and the outside mould structure of concave surface is similar, simply concave surface is not outwards immersed in slurries, die body it is convex
Towards the inner cavity that bottom cavity is formed with die bottom plate, remaining structure is essentially identical.
Because the base process of copying of Paper moulded must be the string in slurries 7 and thin preparing in slurry slurries 7
Little fiber is retained by the net mould of woven wire 5 on vacuum mould-suction 3, water is filtered off, and fiber presses the shape successively accumulation molding of net mould
And form l Water Paper mold base by the Hydrogenbond between fiber；Such as Paper moulded compression moulding method (hydraulic coupling and compressed air air pressure
Power) copy base etc. and belong to that wet base should be formed in the stock tank 6 of slurry slurries 7 preparing as the vacuum mould-suction for copying mold, this
Copy Bottom Blowing homogenate and the self-cleaning technology of wire side before base to be equally suitable for it.This invention in actual applications, no matter under which kind of reason
Into slurries acutely and when turning over Roll with directive upheaval, if will be in into copying in slurries do in mold after Bottom Blowing,
This liquid level can be instantaneously set to tend to be steady, the effect of wave absorption homogenate is extremely obvious, specifically, if slurries level and die body
Pore lay reasonable, the pressure of air blowing is appropriate with selection of time, and wave absorption can be completed with the timeliness of homogenate in 1S, and typically be existed
It is to put down quickly to send for starching or copying the upheaval Fan Roll of the slurries after mold platform is rapidly entered in slurries, the time without more than 4S
Surely get off, and more without silk screen self-cleaning function in the long period waits；Although the subsidiary wire side self-cleaning effect of Bottom Blowing is immediately
Intuitive it is strong, not substantially, but using this technique Paper moulded automatic moulding machine in production run continuously over a long time
Cheng Zhong, causing to produce because wire side is unclean to pause never again need to rinse the phenomenon of silk screen, and this has completely comparativity.Seem simple
" one breath ", the big problem solved in Paper moulded production practices, a key in perfect Paper moulded automatic molding process
Link, simple, practical and reliable, efficient, actual utility is high, and effect is obvious.
This Paper moulded copies Bottom Blowing homogenate before base and can be applicable to Paper moulded semiautomatic loading mechanism with the self-cleaning technology of wire side, is more suitable for
Paper moulded full-automatic machine production equipment system；Be applicable to the vacuum forming of Paper moulded production of articles, shaped by fluid pressure method with
The midges of various forming methods such as compressed air die mould method, drag for slurry, just inhaling various production molding modes with back suction.
In sum, the Paper moulded that the present invention is provided copies Bottom Blowing homogenate and the application of the self-cleaning technology of wire side before base, can be bright
It is aobvious to improve moulded products evenness and two-way tearing strength, due to eliminating the normal cleaning web procedure calls of Jing, improve equipment profit
With rate and production efficiency, especially for large quantities of substantial amounts of continuitys, the production of Automated paper moulding article necessary requirement is created.By
The market demand that the distinguishing feature of the environmental protection possessed in moulded paper pulp product itself and huge mesh benefit increase, this paper
Molding high pressure draught is homogenized promoting the use for the self-cleaning technology of wire side, and its performance of enterprises is good with social benefit.
The embodiment that the present invention is recorded is only used for that the present invention will be described, does not constitute the limit to right
System.Other replacements being substantially equal to that those skilled in that art are contemplated that, within the scope of the present invention.
Claims (5)
1. the process that a kind of Paper moulded is homogenized and silk screen is self-cleaning, it is characterised in that：Before vacuum suction filter manufactures paper with pulp wet base, first
Vacuum mould-suction is entered after preparing in the slurries for completing, be secondly blown into air-flow, gas at the pressure-vaccum mouth in die bottom plate centre position
Stream copies the in opposite direction of base air-flow with vacuum suction filter, and air-flow sequentially passes through pore, the woven wire on bottom cavity, vacuum mould-suction die body
Enter afterwards in slurries.
2. the process that a kind of Paper moulded as claimed in claim 1 is homogenized and silk screen is self-cleaning, it is characterised in that：The air-flow
Pressure be 0.15Mpa～0.85Mpa.
3. the process that a kind of Paper moulded as claimed in claim 1 is homogenized and silk screen is self-cleaning, it is characterised in that：The air-flow
Entry time be 0.2s～1.2s.
4. the self-cleaning mould structure of a kind of Paper moulded homogenate of method for implementing claim 1 and silk screen, including die bottom plate
(2) and the vacuum mould-suction (3) that is arranged on die bottom plate (2), die bottom plate (2) and vacuum mould-suction (3) with reference to when form bottom cavity
(9), it is characterised in that the vacuum pneumatic that pressure-vaccum mouth (1) copies base for air-flow and negative pressure of vacuum suction strainer is provided with die bottom plate (2)
Into, several pores (4) are provided with the die body of vacuum mould-suction (3), the surface of vacuum mould-suction (3) is laid with woven wire
(5), vacuum mould-suction (3) is placed in be full of in the stock tank of slurries (7) (6) and carries out copying base.
5. the mould structure that Paper moulded according to claim 4 is homogenized and silk screen is self-cleaning, it is characterised in that the wire
Net (5) is fixed on the surface of the vacuum mould-suction (3) by silk screen fixed plate (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610906200.2A CN106567297A (en) | 2016-10-18 | 2016-10-18 | Process for paper molding homogenate and silk screen self-cleaning and die structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610906200.2A CN106567297A (en) | 2016-10-18 | 2016-10-18 | Process for paper molding homogenate and silk screen self-cleaning and die structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106567297A true CN106567297A (en) | 2017-04-19 |
Family
ID=60414196
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610906200.2A Pending CN106567297A (en) | 2016-10-18 | 2016-10-18 | Process for paper molding homogenate and silk screen self-cleaning and die structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106567297A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113308947A (en) * | 2021-06-08 | 2021-08-27 | 永发（河南）模塑科技发展有限公司 | Paper pulp suction filtration dewatering thermal forming process |
| CN115450072A (en) * | 2022-10-27 | 2022-12-09 | 广东瀚迪科技有限公司 | Inhale thick liquid forming die subassembly |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5356518A (en) * | 1992-09-21 | 1994-10-18 | The Cin-Made Corporation | Method of producing molded paper pulp articles and articles produced thereby |
| CN1566529A (en) * | 2003-06-27 | 2005-01-19 | 姜陆平 | Blank forming equipment for paper-mould production and forming process using the equipment |
| CN1590646A (en) * | 2003-08-29 | 2005-03-09 | 姜六平 | Paper pulp molding product blank forming technology |
| CN1623022A (en) * | 2002-02-26 | 2005-06-01 | 绿谷科技有限公司 | Improved molded fiber manufacturing |
| CN105369695A (en) * | 2015-10-10 | 2016-03-02 | 上海英正辉环保设备有限公司 | Technological method for deep dehydration of paper-molding pulp blank and mold structure |
-
2016
- 2016-10-18 CN CN201610906200.2A patent/CN106567297A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5356518A (en) * | 1992-09-21 | 1994-10-18 | The Cin-Made Corporation | Method of producing molded paper pulp articles and articles produced thereby |
| CN1623022A (en) * | 2002-02-26 | 2005-06-01 | 绿谷科技有限公司 | Improved molded fiber manufacturing |
| CN1566529A (en) * | 2003-06-27 | 2005-01-19 | 姜陆平 | Blank forming equipment for paper-mould production and forming process using the equipment |
| CN1590646A (en) * | 2003-08-29 | 2005-03-09 | 姜六平 | Paper pulp molding product blank forming technology |
| CN105369695A (en) * | 2015-10-10 | 2016-03-02 | 上海英正辉环保设备有限公司 | Technological method for deep dehydration of paper-molding pulp blank and mold structure |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113308947A (en) * | 2021-06-08 | 2021-08-27 | 永发（河南）模塑科技发展有限公司 | Paper pulp suction filtration dewatering thermal forming process |
| CN115450072A (en) * | 2022-10-27 | 2022-12-09 | 广东瀚迪科技有限公司 | Inhale thick liquid forming die subassembly |
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Application publication date: 20170419 |