CN207954459U - A kind of kettle is extruded out integral type Microcellular foam extrusion molding machine - Google Patents
A kind of kettle is extruded out integral type Microcellular foam extrusion molding machine Download PDFInfo
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- CN207954459U CN207954459U CN201820068580.1U CN201820068580U CN207954459U CN 207954459 U CN207954459 U CN 207954459U CN 201820068580 U CN201820068580 U CN 201820068580U CN 207954459 U CN207954459 U CN 207954459U
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Abstract
It extrudes out integral type Microcellular foam extrusion molding machine the utility model discloses a kind of kettle, mainly it is made of feeding system, air supply system and extrusion system, feeding system is connected on the feeding device of the machine barrel of extrusion system, and air supply system provides supercritical gas for feeding system.Feeding system is mainly made of storage bin hopper, motor, motor driving shaft, gear, key, driving member, pressing means, sealing drum, infiltration kettle, gasket, spring, idler wheel, cylinder, air cylinder tie rod, sealing plate, limited block and pressure rod.The utility model substantially reduces time of penetration, and the serialization for realizing fretting map product squeezes out, and improves production efficiency due to being permeated to particulate starting material；Supercritical gas infiltration is carried out to particulate starting material using infiltration kettle, technological parameter can accurately control, foaming quality is higher, and product properties is preferable, and the gas after the completion of permeating can be recycled in the course of work, compared with traditional kettle foam method, gas effciency is improved.
Description
Technical field
The utility model is related to a kind of Microcellular foam extrusion molding machine more particularly to a kind of fretting maps that gas circulation utilizes
Extrusion molding apparatus belongs to processing of high molecular material forming field.
Background technology
Fretting map polymer refers to using polymer material as matrix, wherein containing abscess-size from less than one micron to tens
The porous polymer material of micron.The largely already present smaller sky of defect scale more former than polymer is introduced in a polymer matrix
Gap can improve its rigidity while reducing material utilization amount, mitigating product weight, and avoid causing obviously the performances such as intensity
Influence.Therefore, fretting map molding becomes the hot spot of Recent study.
For fretting map polymer sheet, board product, forming method generally uses kettle foam method or continuous extrusion
Foaming.It is then to pass through the external world first with gas come saturated polymer that kettle foam method, which is also batch-foamed method, basic principle,
The change of condition make solvability rapid decrease of the polymer to gas, this in a flash unstability driving bubble nucleating with
Growth.Kettle foam method is a kind of solid phase foaming technology, compares other foamings its tools there are two significant advantage：Its
First, nucleation rate is high, after polymer dissolves in bulk gas in the solid state, into causing great degree of supersaturation in environment under low pressure
Carry out the moment a large amount of nuclei of bubbles of nucleation；The second is structural controllability is good, its viscosity of the polymer under the conditions of glass transition temperature and rigidity
The polymer being significantly larger than under molten condition, the inhibiting effect increased to abscess are stronger, it is easy to pass through regulating and controlling temperature, pressure
Foam structure with saturation time etc. because usually optimizing fretting map product.But such method is laggard in polymer product molding
Row foaming, foaming cycle are affected by product size, and the production cycle of massive article is longer, it is difficult to meet industrialization demand.
Continuous extrusion molding is to be mixed into foaming agent in polymeric matrix by the suitable position of extruder barrel, mixed by the shearing of screw rod
It closes, gas then interpenetrates to form homogeneous system with melt, and the pressure, temperature variation finally undergone in extrusion neck ring mold exists
Hole is obtained in final product.This continuous extrusion fretting map method yield is relatively high, but micropore poor controllability, and abscess is uneven
It is even, affect the performance of end article.In addition, the plasticizing system for continuously squeezing out Microcellular foam extrusion machine is more multiple than conventional extruder
Miscellaneous, improvement cost is higher.
Therefore, in order to which the production cycle for solving kettle foam method is long and continuous extrusion foaming method abscess poor controllability, sets
It the problems such as big for improvement cost, needs to seek a kind of new process route, under the premise of ensureing fretting map product abscess quality
The production cycle is reduced, production efficiency is improved.
Utility model content
The utility model is directed to kettle foam method low production efficiency and continuous extrusion foaming method abscess poor controllability, equipment
The problems such as improvement cost is big, it is proposed that a kind of kettle that supercritical gas recycles is extruded out integral type Microcellular foam extrusion molding dress
It sets and method.
To achieve the goals above, propose that a kind of kettle is extruded out integral type Microcellular foam extrusion molding machine, mainly by being fed
System, air supply system and extrusion system composition, feeding system are connected on the feeding device of the machine barrel of extrusion system, air supply system
Supercritical gas is provided for feeding system.
A kind of kettle that supercritical gas recycles of the utility model is extruded out integral type Microcellular foam extrusion molding machine,
Feeding system is mainly by storage bin hopper, motor, motor driving shaft, gear, key, driving member, pressing means, sealing drum, infiltration kettle, sealing
Pad, spring, idler wheel, cylinder, air cylinder tie rod, sealing plate, limited block and pressure rod composition, storage bin hopper is fixed on machine barrel top, close
Sealed tube is fixed on storage bin hopper top, and infiltration kettle is fixed on sealing drum top, and the sky inside storage bin hopper, sealing drum and infiltration kettle
Between be interconnected.The upper end plate of storage bin hopper fixes a motor, and the motor driving shaft of motor is fixed by key and gear.Transmission
Part is located at the top of storage bin hopper, the outside of sealing drum, and outer surface is arranged tooth form, is engaged with gear, inner surface is threaded.
Limited block is fixed on the top of storage bin hopper, the outside of driving member, and limits the axial displacement of driving member.Pressing means are located at sealing drum
Between driving member, outer surface is threaded, and is engaged with the screw thread of driving member inner surface.Pressure rod is fixed on the upper of pressing means
Portion, and across the hole of sealing drum shell setting, enter the inner space of sealing drum from bottom to top.The upside of sealing drum inner space
The position of the gasket of stationary annular, gasket is corresponding in the axial direction with pressure rod.Position between gasket and pressure rod
It is provided with sealing plate, sealing plate is by multigroup spring and the modular support that forms of idler wheel on the outside of gasket and pressure rod, bullet
Spring is fixed on the inner wall of sealing drum.The side of sealing plate extends to the outside of sealing drum by the sidewall opening of sealing drum, prolongs
The end position stretched is in axial sliding connection with connecting plate.Air cylinder tie rod of the both sides of connecting plate respectively with two cylinders is fixed
Connection, cylinder are fixed on the outside of sealing drum.
A kind of kettle that supercritical gas recycles of the utility model is extruded out integral type Microcellular foam extrusion molding machine,
Air supply system generates system, gas recovery system and pumped vacuum systems by supercritical gas and forms.Wherein, supercritical gas generates
System is mainly sequentially connected air feed tank, shut-off valve I, two-position three way magnetic valve, booster pump, preheater, pressure-control valve by tracheae
It is formed with shut-off valve III.Gas recovery system is mainly sequentially connected shut-off valve II, air storage bag, shut-off valve IV by tracheae and forms.It takes out
Vacuum system is mainly connected by tracheae with vacuum pump by shut-off valve V and is formed.
A kind of kettle that supercritical gas recycles of the utility model is extruded out integral type Microcellular foam extrusion molding machine,
Extrusion system is graded by plasticizing extruding part, power section, control unit to be formed.Power section and control section control plasticizing squeeze out
Partial act, extruded polymer product.Extruding part is plasticized generally mainly by heater, screw rod, machine barrel, tail seal part, tail
The compositions such as portion's end cap, tail seal part, tail cover are that conventional extruders do not configure, mainly prevent plasticizing when gas from
Screw rod tail escapes.
Using a kind of kettle that supercritical gas recycles of the utility model extrude out integral type Microcellular foam extrusion molding dress
It sets and carries out molding method, the course of work is：
The first step：Cylinder movement makes air cylinder tie rod drive sealing plate to enter in the inner space of sealing drum by connecting plate.
Second step：Motor action makes gear rotate by motor driving shaft, and the rotation of gear is passed to by engagement
Driving member, since driving member is engaged with pressing means by screw thread, and driving member is limited block and limits axial displacement so that passes
The axial movement for being converted into pressing means of moving part, pressing means drive pressure rod to act contact sealing plate upwards and push sealing
Plate makes it fit closely sealing with gasket.
Third walks：The entrance for permeating kettle is opened, and particulate starting material is added thereto, is then shut off entrance.
4th step：Shut-off valve V is opened, and vacuum pump action vacuumizes infiltration kettle inner space, air is discharged, then very
Sky pump stopping acts and closes shut-off valve V.
5th step：Two-position three way magnetic valve acts, and connection right side pipeline, shut-off valve I and shut-off valve III are opened, booster pump and
Preheater works, and the gas in air accumulator is prepared supercritical gas, and is sent into infiltration kettle, and pressure-control valve controls gas
Body pressure, after reaching set temperature pressure value in infiltration kettle, booster pump and preheater stopping action, shut-off valve I and shut-off valve
III closes, and permeates process of osmosis of the supercritical gas to particulate starting material occurs in kettle at this time.
6th step：It permeates after the completion of the osmosis in kettle, shut-off valve IV is opened, and is permeated pressure in kettle and is offloaded to normally
Value, and excessive gas is collected into air storage bag.
7th step：Motor action, pressing means drive pressure rod playback, sealing plate to playback under the action of spring is with idler wheel.
8th step：Cylinder movement makes air cylinder tie rod drive sealing plate outside from the inner space of sealing drum by connecting plate
It is mobile, at this point, the pellet that infiltration is completed enters under the effect of gravity in the inner space of sealing drum and storage bin hopper.
9th step：Extrusion system works, and permeates the pellet of completion in inside machine barrel melting extrusion forward, and finally through mouth mold
The ideal fretting map product of molding.
Tenth step：During extruded product, the first step is repeated to the 8th step, it is continuous to form continual fretting map product
Extrusion.Particularly, after being collected into a certain amount of gas in air storage bag, entrance is changed to by two-position three way magnetic valve action
Left side, the gas in air storage bag form supercritical gas again by booster pump, preheater, are again introduced into infiltration kettle and participate in
The osmosis of grainy raw materials realizes recycling for gas.
The utility model has the beneficial effects that：Due to particulate starting material rather than product permeates, greatly shorten
Time of penetration, and the serialization for realizing fretting map product squeezes out, and improves production efficiency.Meanwhile using infiltration kettle pair
Particulate starting material carry out supercritical gas infiltration, technological parameter can accurately control, foaming quality is higher, product properties compared with
It is good.In addition, the gas after the completion of infiltration can be recycled in the course of work, compared with traditional kettle foam method, gas is improved
The utilization rate of body.
Description of the drawings
Fig. 1 be a kind of kettle that supercritical gas recycles of the utility model extrude out integral type Microcellular foam extrusion molding dress
Set schematic diagram.
Fig. 2 be a kind of kettle that supercritical gas recycles of the utility model extrude out integral type Microcellular foam extrusion molding dress
The feeding structure figure set.
Fig. 3 be a kind of kettle that supercritical gas recycles of the utility model extrude out integral type Microcellular foam extrusion molding dress
Set the schematic diagram that is slidably connected of sealing plate and air cylinder tie rod.
In figure：1- heaters, 2- screw rods, 3- storage bin hoppers, 4- machine barrels, 5- tail seal parts, 6- tail covers, 7- preheatings
Device, 8- booster pumps, 9- air feed tanks, 10- shut-off valves I, 11- two-position three way magnetic valves, 12- shut-off valves II, 13- air storage bags, 14- pressures
Force control valve, 15- shut-off valves III, 16- shut-off valves IV, 17- sealing drums, 18- infiltration kettles, 19- shut-off valves V, 20- vacuum pumps,
21- motors, 22- motor driving shafts, 23- gears, 24- keys, 25- driving members, 26- pressing means, 27- gaskets, 28- springs, 29-
Idler wheel, 30- cylinders, 31- air cylinder tie rods, 32- sealing plates, 33- limited blocks, 34- pressure rods, 35- connecting plates.
Specific implementation mode
A kind of kettle that supercritical gas recycles of the utility model is extruded out integral type Microcellular foam extrusion molding machine, main
It to be made of air supply system, feeding system and extrusion system.
A kind of kettle that supercritical gas recycles of the utility model is extruded out integral type Microcellular foam extrusion molding machine,
Feeding system is as depicted in figs. 1 and 2, mainly by storage bin hopper 3, motor 21, motor driving shaft 22, gear 23, key 24, driving member
25, pressing means 26, sealing drum 17, infiltration kettle 18, gasket 27, spring 28, idler wheel 29, cylinder 30, air cylinder tie rod 31, sealing plate
32, limited block 33 and pressure rod 34 form.Wherein, storage bin hopper 3 is fixed on 4 top of machine barrel, and sealing drum 17 is fixed on storage bin hopper 3
Portion, infiltration kettle 18 is fixed on 17 top of sealing drum, and storage bin hopper 3, sealing drum 17 are mutually interconnected with the space inside infiltration kettle 18
It is logical.The upper end plate of storage bin hopper 3 fixes a motor 21, and the motor driving shaft 22 of motor 21 is fixed by key 24 and gear 23.
Driving member 25 is located at the top of storage bin hopper 3, the outside of sealing drum 17, and outer surface is arranged tooth form, is engaged with gear 23, interior table
Face is threaded.Limited block 33 is fixed on the top of storage bin hopper 3, the outside of driving member 25, and limits the axial position of driving member 25
It moves.Between sealing drum 17 and driving member 25, outer surface is threaded pressing means 26, the screw thread with 25 inner surface of driving member
Engagement.Pressure rod 34 is fixed on the top of pressing means 26, and across the hole of 17 shell of sealing drum setting, enters sealing from bottom to top
The inner space of cylinder 17.The gasket 27 of the upside stationary annular of 17 inner space of sealing drum, the position of gasket 27 and pressurization
Bar 34 corresponds in the axial direction.Position between gasket 27 and pressure rod 34 is provided with sealing plate 32, and sealing plate 32 is by being located at
The modular support that multigroup spring 28 and idler wheel 29 in 34 outside of gasket 27 and pressure rod form, spring 28 are fixed on sealing drum 17
Inner wall.The side of sealing plate 32 extends to the outside of sealing drum 17 by the sidewall opening of sealing drum 17, extends out
End position is in axial sliding connection with connecting plate 35, as shown in Figure 3.The both sides of connecting plate 35 cylinder with two cylinders 30 respectively
Pull rod 31 is fixedly connected, and cylinder 30 is fixed on the outside of sealing drum 17.
A kind of kettle that supercritical gas recycles of the utility model is extruded out integral type Microcellular foam extrusion molding machine,
Air supply system generates system, gas recovery system and pumped vacuum systems by supercritical gas and forms.Wherein, supercritical gas generates
System is mainly sequentially connected air feed tank 9, shut-off valve I 10, two-position three way magnetic valve 11, booster pump 8, preheater 7, pressure by tracheae
Control valve 14, shut-off valve III 15 form.Gas recovery system is mainly sequentially connected shut-off valve II 12 by tracheae, air storage bag 13, cuts
Only valve IV 16 forms.Pumped vacuum systems is mainly connected by tracheae with vacuum pump 20 by shut-off valve V 19 and is formed.
A kind of kettle that supercritical gas recycles of the utility model is extruded out integral type Microcellular foam extrusion molding machine,
Extrusion system is graded by plasticizing extruding part, power section, control unit to be formed.Power section and control section control plasticizing squeeze out
Partial act, extruded polymer product.Extruding part is plasticized generally mainly by heater 1, screw rod 2, machine barrel 3, tail seal part
5, the compositions such as tail cover 6.
Using a kind of kettle that supercritical gas recycles of the utility model extrude out integral type Microcellular foam extrusion device at
The method of type, the course of work are：
The first step：Cylinder 30 acts, and air cylinder tie rod 31 is made to drive sealing plate 32 to enter sealing drum 17 by connecting plate 35
In inner space.
Second step：Motor 21 acts, and so that gear 23 is rotated by motor driving shaft 22, and the rotation of gear 23 is made by engaging
With driving member 25 is passed to, since driving member 25 is engaged with pressing means 26 by screw thread, and driving member 25 is limited the limit of block 33
Axial displacement is made so that the axial movement for being converted into pressing means 26 of driving member 25, pressing means 26 drive pressure rod 34
Action contacts sealing plate 32 and pushes sealing plate 32 that it is made to fit closely sealing with gasket 27 upwards.
Third walks：The entrance for permeating kettle 18 is opened, and particulate starting material is added thereto, is then shut off entrance.
4th step：Shut-off valve V 19 is opened, and vacuum pump 20 acts, and is vacuumized to 18 inner space of infiltration kettle, air is discharged,
Then 20 stopping of vacuum pump acts and closes shut-off valve V 19.
5th step：Two-position three way magnetic valve 11 acts, and connection right side pipeline, shut-off valve I 10 and shut-off valve III 15 are opened, increased
Press pump 8 and preheater 7 work, and the gas in air accumulator 9 is prepared supercritical gas, and are sent into infiltration kettle 18, pressure
Control valve 14 controls gas pressure, after reaching set temperature pressure value in infiltration kettle, booster pump 8 and 7 stopping of preheater action,
Shut-off valve I 10 and shut-off valve III 15 are closed, and permeate supercritical gas penetrating to particulate starting material occurs in kettle 18 at this time
Journey.
6th step：It permeates after the completion of the osmosis in kettle 18, shut-off valve IV 16 is opened, and is permeated pressure in kettle 18 and is offloaded to
Normal value, and excessive gas is collected into air storage bag 13.
7th step：Motor 21 acts, and pressing means 26 drive pressure rod 34 to playback, and sealing plate 32 is in spring 28 and idler wheel 29
The lower playback of effect.
8th step：Cylinder 30 acts, and air cylinder tie rod 31 is made to drive sealing plate 32 out of sealing drum 17 by connecting plate 35
Portion space is displaced outwardly, at this point, the pellet that infiltration is completed enters the inner space of sealing drum 17 and storage bin hopper 3 under the effect of gravity
In.
9th step：Extrusion system works, and permeates pellet melting extrusion forward inside machine barrel 4 of completion, and final oral
Mold forming ideal fretting map product.
Tenth step：During extruded product, the first step is repeated to the 8th step, it is continuous to form continual fretting map product
Extrusion.Particularly, after being collected into a certain amount of gas in air storage bag 13, two-bit triplet solenoid valve 11 acts, by entrance
It is changed to left side, the gas in air storage bag forms supercritical gas again by booster pump 8, preheater 7, is again introduced into infiltration kettle 18
The middle osmosis for participating in particulate starting material realizes recycling for gas.
By a kind of kettle that supercritical gas recycles of the utility model described above extrude out integral type fretting map squeeze
Go out molding machine and method, due to particulate starting material rather than product permeates, substantially reduce time of penetration, and
The serialization for realizing fretting map product squeezes out, and improves production efficiency.Meanwhile particulate starting material is carried out using infiltration kettle
Supercritical gas permeates, and technological parameter can accurately control, foaming quality is higher, and product properties is preferable.In addition, after the completion of infiltration
Gas can be recycled in the course of work, compared with traditional kettle foam method, improve the utilization rate of gas.
The above is that a kind of kettle that recycles of supercritical gas integral type fretting map of extruding out of the utility model squeezes
Go out molding machine and method, each figure is coordinated to be explained.But the utility model is not limited to above-described specific equipment
And technical process, it is any based on the above-mentioned described modifications or substitutions for relevant device, it is any based on it is above-mentioned it is described for
The local directed complete set of related process belongs to the utility model as long as within the scope of the realm of spirit of the utility model.
Claims (2)
- The integral type Microcellular foam extrusion molding machine 1. a kind of kettle is extruded out, it is characterised in that：By feeding system, air supply system and squeeze Go out system composition, feeding system is connected on the feeding device of the machine barrel of extrusion system, and air supply system provides super for feeding system Critical gas；Feeding system is by storage bin hopper, motor, motor driving shaft, gear, key, driving member, pressing means, sealing drum, infiltration Kettle, gasket, spring, idler wheel, cylinder, air cylinder tie rod, sealing plate, limited block and pressure rod composition, storage bin hopper are fixed on machine barrel Top, sealing drum are fixed on storage bin hopper top, and infiltration kettle is fixed on sealing drum top, and storage bin hopper, sealing drum and infiltration kettle Internal space is interconnected；The upper end plate of storage bin hopper fixes a motor, and the motor driving shaft of motor passes through key and gear It is fixed；Driving member is located at the top of storage bin hopper, the outside of sealing drum, and outer surface is arranged tooth form, is engaged with gear, inner surface It is threaded；Limited block is fixed on the top of storage bin hopper, the outside of driving member, and limits the axial displacement of driving member；Pressing means Between sealing drum and driving member, outer surface is threaded, and is engaged with the screw thread of driving member inner surface；Pressure rod is fixed on The top of pressing means, and across the hole of sealing drum shell setting, enter the inner space of sealing drum from bottom to top；Inside sealing drum The gasket of the upside stationary annular in space, the position of gasket are corresponding in the axial direction with pressure rod；Gasket and pressure rod Between position be provided with sealing plate, sealing plate is by the multigroup spring and the group that forms of idler wheel on the outside of gasket and pressure rod Part supports, and spring is fixed on the inner wall of sealing drum；The side of sealing plate extends to sealing drum by the sidewall opening of sealing drum Outside, the end position to extend out are in axial sliding connection with connecting plate；The both sides of the connecting plate gas with two cylinders respectively Cylinder pull rod is fixedly connected, and cylinder is fixed on the outside of sealing drum.
- The integral type Microcellular foam extrusion molding machine 2. a kind of kettle according to claim 1 is extruded out, it is characterised in that：Gas supply System generates system, gas recovery system and pumped vacuum systems by supercritical gas and forms, and supercritical gas generates system by gas Pipe is sequentially connected III group of air feed tank, shut-off valve I, two-position three way magnetic valve, booster pump, preheater, pressure-control valve and shut-off valve At；Gas recovery system is sequentially connected shut-off valve II, air storage bag, shut-off valve IV by tracheae and forms；Pumped vacuum systems is by shut-off valve V is connected by tracheae with vacuum pump and forms.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820068580.1U CN207954459U (en) | 2018-01-16 | 2018-01-16 | A kind of kettle is extruded out integral type Microcellular foam extrusion molding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820068580.1U CN207954459U (en) | 2018-01-16 | 2018-01-16 | A kind of kettle is extruded out integral type Microcellular foam extrusion molding machine |
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| CN207954459U true CN207954459U (en) | 2018-10-12 |
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| CN201820068580.1U Expired - Fee Related CN207954459U (en) | 2018-01-16 | 2018-01-16 | A kind of kettle is extruded out integral type Microcellular foam extrusion molding machine |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108312413A (en) * | 2018-01-16 | 2018-07-24 | 北京化工大学 | A kind of kettle is extruded out integral type Microcellular foam extrusion molding machine and method |
-
2018
- 2018-01-16 CN CN201820068580.1U patent/CN207954459U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108312413A (en) * | 2018-01-16 | 2018-07-24 | 北京化工大学 | A kind of kettle is extruded out integral type Microcellular foam extrusion molding machine and method |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181012 Termination date: 20210116 |
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| CF01 | Termination of patent right due to non-payment of annual fee |