CN207564828U - A kind of super high molecular weight polymer abnormal shape product former - Google Patents
A kind of super high molecular weight polymer abnormal shape product former Download PDFInfo
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- CN207564828U CN207564828U CN201721584587.0U CN201721584587U CN207564828U CN 207564828 U CN207564828 U CN 207564828U CN 201721584587 U CN201721584587 U CN 201721584587U CN 207564828 U CN207564828 U CN 207564828U
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- exciting
- forming tank
- moving platen
- cover half
- molecular weight
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Abstract
The utility model discloses a kind of super high molecular weight polymer abnormal shape product forming method and formers.The forming method includes:Nascent particle powder is placed in after transporting and being heated to close to its fusing point in the forming tank of cover half;For moving platen towards mobile in forming tank until the lower surface of moving platen is pressed on nascent particle powder, exciting driving part drives the vibration of moving platen to make nascent particle powder exhaust compacting;Moving platen is towards moving in forming tank, the nascent particle being compacted is acted on by the mold clamping force of pulsating, it is mutually chimeric between the particle of nascent particle powder, the dynamic friction heat that is generated between the particle of nascent particle, compression are with the mutual clinkering of particle of under the action of particle plastic deformation thermal energy caused by thermal expansion and forming tank external heat, coming into being into melt;Cooling, and moving platen is continued towards moving in forming tank, the melt is acted on by the mold clamping force of pulsating, and melt cooling meat is until melt is cooled to predetermined temperature and is molded to form polymer abnormal shape product finished product.This method shaping efficiency is high.
Description
Technical field
The utility model is related to forming fields, are set more particularly to a kind of molding of super high molecular weight polymer abnormal shape product
It is standby.
Background technology
Super high molecular weight polymer, such as ultra-high molecular weight polyethylene (UHMWPE), polytetrafluoroethylene (PTFE) are with extremely excellent
Performance, the pillar industries such as medical instrument, automobile making, textile machine field have important application.For example, super high molecular weight
Polyethylene (UHMWPE) generally refers to polyethylene of the relative molecular weight more than 1,500,000, and very excellent as a kind of performance is new
Type engineering plastics have splendid abrasion resistance properties, impact strength, shock-absorbing noise control acoustic performance, resistance to chemical corrosion and low rub
The features such as wiping coefficient, is the best engineering plastics of comprehensive performance.But since this kind of material molecule amount is high, melt viscosity is very big,
Melt flow rate (MFR) is almost nil, and the critical shear rate for making ultra-high molecular weight polyethylene is extremely low, under very low shear rate
Melt fracture will be generated, and friction coefficient is low with the coefficient of heat conduction, in forming process it is intermolecular it is mutual winding and mutually
More serious than Other Engineering plastics in molecule space infiltration, coefficient of thermal expansion and contraction is big, it is difficult to convey, is plasticized, mixes, be injected into
Type, it is main at present that large-sized sheet material simple in structure and various small articles (such as idler wheel, sliding block, axle sleeve are produced using compression molding
Deng), wherein, free one product of sintering process needs two molds, and mold and raw material need to be carried to heating together by sintering pressing
The methods of equipment heats, and is only applicable to small articles and small batch production, and a large amount of complicated product is using sintering, machining
Production, if sintering time is insufficient, product core burning is impermeable, and product military service performance is not by far up to the mark, if sintering time is long, deposits
Polymer is excessively degraded the phenomenon that, likewise, machine adds product properties to be not by far up to the mark, it is chiefly used in verifying product size, and
It is extremely inefficient, cost is very high, restrict its large-scale application.Injection molding for current super high molecular weight polymer, is usually adopted
With the method for adding in a large amount of low molecular weight processing aid, but low molecular weight processing aid seriously affects the performance of product.
Utility model content
Based on this, it is necessary to it is high, at low cost and do not influence product to provide a kind of super high molecular weight polymer shaping efficiency
The super high molecular weight polymer abnormal shape product former of energy.
A kind of super high molecular weight polymer abnormal shape product former drives including cover half, moving platen, locked mode plate and exciting
Dynamic component;
The upper surface of the cover half has forming tank, and in preset shape, the cover half is equipped with the groove bottom of the forming tank
First temperature control runner;The side wall of the cover half is equipped with feeding-passage, and the one end open of the feeding-passage is in the outer of the cover half
Wall, other end open communication is in the forming tank;
The exciting driving part is connected to the moving platen, and the moving platen is equipped with the second temperature control runner;It is described fixed
Mold has on the gas vent for connecting the forming tank and the outer wall of the cover half and/or the moving platen and has through two
The gas vent on surface;The exciting driving part can drive the moving platen towards moving in the forming tank, the exciting
Driving part also is able to drive the dynamic model panel vibration by exciting function;The moving platen is adapted to the forming tank, works as institute
When stating moving platen and moving into the forming tank, there are gaps for the inner wall of the edge of the moving platen and the forming tank.
Multiple gas vents are uniformly distributed along the surrounding of the forming tank in one of the embodiments,.
The exciting function way of realization of the exciting driving part, which includes, in one of the embodiments, is not limited in liquid
Pressure type exciting, inertia-type exciting, electrodynamic type exciting, electromagnetic type exciting, electric-liquid type exciting, one kind in pneumatic type exciting or several
Kind.
The exciting function way of realization of the exciting driving part is fluid pressure type exciting side in one of the embodiments,
Formula.
Multiple support columns are further included in one of the embodiments, and multiple support columns are perpendicular to the upper of the cover half
Surface and the upper surface for being connected to the cover half, the locked mode sleeve-board are located on multiple support columns.
Above-mentioned super high molecular weight polymer abnormal shape product former completes vibration, compression row in same forming tank
The work such as gas, pressurize compacting, cooling supercharging and molding, solve existing super high molecular weight polymer former shaping efficiency
The problem of low and of high cost, compared with the prior art and equipment, above-mentioned super high molecular weight polymer abnormal shape product former,
Realize that nearly fusing point is come into being air between particle by vibrocompression effect caused by the exciting function of dynamic excitation driving part
Discharge so that nearly fusing point particle of coming into being comes into full contact with, and thermal conductivity is high, and product molding quality is high.Impact is made caused by dynamic excitation
With make nearly fusing point come into being particle obtain dynamic friction heat and compression caused by particle plastic deformation thermal energy, the particle powder of coming into being
Particle heap internal and external temperature be above fusing point, the particle heap core temperature of the particle powder of coming into being be slightly above it is external, solve it is existing plus
Impermeable problem is burnt during work caused by the transmission processing method of heat from outside to inside, makes molding time short, it is efficient;Molding with
It is completed under percussion action caused by high-temperature fusion is molded over the exciting of same exciting driving part, without mold is needed to change, saves the time
Power.
Description of the drawings
Fig. 1 is an embodiment super high molecular weight polymer abnormal shape product former side schematic view;
Fig. 2 is another visual angle schematic side view of super high molecular weight polymer abnormal shape product former shown in Fig. 1.
Reference sign
10th, super high molecular weight polymer abnormal shape product former;100th, cover half;110th, forming tank;120th, feeding-passage;
200th, moving platen;300th, gas vent;400th, exciting driving part;500th, locked mode plate;600th, support column;20th, nascent particle powder.
Specific embodiment
For the ease of understanding the utility model, the utility model is more fully retouched below with reference to relevant drawings
It states.The preferred embodiment of the utility model is given in attached drawing.But the utility model can in many different forms come in fact
It is existing, however it is not limited to embodiment described herein.On the contrary, the purpose for providing these embodiments is the public affairs made to the utility model
Open the understanding more thorough and comprehensive of content.
It should be noted that when element is referred to as " being fixed on " another element, it can be directly on another element
Or there may also be elements placed in the middle.When an element is considered as " connection " another element, it can be directly connected to
To another element or it may be simultaneously present centering elements.
Unless otherwise defined, all of technologies and scientific terms used here by the article is led with belonging to the technology of the utility model
The normally understood meaning of technical staff in domain is identical.It is only in the term used in the description of the utility model herein
The purpose of description specific embodiment, it is not intended that in limitation the utility model.Term as used herein "and/or" includes
The arbitrary and all combination of one or more relevant Listed Items.
Referring to shown in Fig. 1 and Fig. 2, the present embodiment relates to a kind of super high molecular weight polymer abnormal shape product former
10.The super high molecular weight polymer abnormal shape product former 10 includes cover half 100, moving platen 200, locked mode plate 500 and swashs
Shake driving part 400.Servo hydraulic cylinder may be used in exciting driving part 400, and exciting driving part 400 both has telescopic drive
Function, also there is exciting.
Referring to shown in Fig. 1 and Fig. 2, the upper surface of the cover half 100 has forming tank 110, the slot bottom of the forming tank 110
Face is in preset shape, and the cover half 100 is equipped with the first temperature control runner.The side wall of the cover half 100 is equipped with feeding-passage 120, institute
The one end open of feeding-passage 120 is stated in the outer wall of the cover half 100, other end open communication is in the forming tank 110.
The exciting driving part is connected to the moving platen 200, and the moving platen 200 is equipped with the second temperature control runner;
The cover half 100 has the gas vent 300 for connecting the forming tank 110 and the outer wall of the cover half 100 and/or the dynamic model
There is the gas vent 300 through two surface on plate 200.The exciting driving part 400 can drive the moving platen 200
It is moved in towards the forming tank 110, the exciting driving part 400 also is able to drive the moving platen by exciting function
200 vibrations.The moving platen 200 is adapted to the forming tank 110, when the moving platen 200 moves into the forming tank 110
When interior, there are gaps for the inner wall of the edge of the moving platen 200 and the forming tank 110.
In one embodiment, which further includes multiple support columns
600, multiple support columns 600 are perpendicular to the upper surface of the cover half 100 and are connected to the upper surface of the cover half 100, institute
Locked mode plate 500 is stated to be set on multiple support columns 600.
In one embodiment, multiple gas vents 300 are uniformly distributed along the surrounding of the forming tank 110.
The super high molecular weight polymer abnormal shape product former 10 that the present embodiment is related to gathers for super high molecular weight
When closing the molding of object abnormal shape product, a kind of super high molecular weight polymer abnormal shape product forming method is related to.
A kind of super high molecular weight polymer abnormal shape product forming method, includes the following steps:
Nascent particle powder is after transport process is heated to close to its fusing point in the forming tank 110 of lower merging cover half 100;
First temperature control runner of the cover half 100 is passed through temperature controlled fluid and maintains the temperature of the cover half 100 to the nascent particle powder
More than the fusing point of body and without departing from more than the fusing point 100 DEG C;
Second temperature control runner of moving platen 200 be passed through temperature controlled fluid maintain the temperature of the moving platen 200 to it is described just
More than the fusing point of raw particle powder and without departing from more than the fusing point 100 DEG C;
Exciting driving part 400 drives the moving platen 200 to be continued towards moving in the forming tank 110, until described
When the lower surface of moving platen 200 contacts the nascent particle powder, the exciting driving part 400 drives the moving platen 200
It is parallel to the of reciprocating vibration of moving direction while being moved towards the forming tank 110, the nearly fusing point is come into being particle powder
Body is compacted under the effect of vibration of the moving platen 200, and air is by the moving platen 200 between the nascent particle powder
And/or the gas vent 300 set on cover half 100 is discharged;
The exciting driving part 400 continues to drive the moving platen 200 towards moving so that in the forming tank 110
The nascent particle pressure value being compacted between the moving platen 200 and the forming tank 110 reaches preset value,
The effect of being excited at the same time causes the nascent particle pressure being compacted to be fluctuated on the basis of the pressure value, described to be pressed
Real nascent particle is acted on by the mold clamping force of pulsating, mutually chimeric between the particle of the nascent particle powder, by
Dynamic friction heat, compression and the particle plasticity change caused by thermal expansion generated between the particle of the nascent particle powder of compacting
Under the action of 110 external heat of shape thermal energy and the forming tank, the particle of the nascent particle powder being compacted is mutually molten
Form melt;
The exciting driving part 400 continues to drive the moving platen 200 towards moving so that in the forming tank 110
The melt pressure value between the moving platen 200 and the forming tank 110 increases to preset value, while lasting swashs
Bestir oneself and fluctuated on the basis of pressure value of the melt pressure after increase with causing, the melt is molded by pulsating
Power acts on, and the first temperature control runner is passed through temperature controlled fluid and maintains the temperature of the cover half 100 to crystallization temperature hereinafter, described the
Two temperature control runners are passed through temperature controlled fluid and maintain the temperature of the moving platen 200 to crystallization temperature hereinafter, the melt cooling meat,
Until the melt is cooled to predetermined temperature and is molded to form polymer abnormal shape product finished product.
Above-mentioned super high molecular weight polymer abnormal shape product former 10 completes vibration, pressure in same forming tank 110
It indents the work such as gas, pressurize compacting, cooling supercharging and molding, solves the molding of existing super high molecular weight polymer former
The problem of efficiency is low and of high cost, compared with the prior art and equipment, the molding of above-mentioned super high molecular weight polymer abnormal shape product
Equipment 10 realizes that nearly fusing point is come into being particle by vibrocompression effect caused by the exciting function of dynamic excitation driving part 400
Between air discharge so that nearly fusing point particle of coming into being comes into full contact with, and thermal conductivity is high, and product molding quality is high.Dynamic excitation draws
Rise percussion make nearly fusing point come into being particle obtain dynamic friction heat and compression caused by particle plastic deformation thermal energy, just
The particle heap internal and external temperature of raw particle powder is above fusing point, and the particle heap core temperature for particle powder of coming into being is slightly above outside,
It solves the problems, such as that burning is impermeable caused by the transmission processing method of heat from outside to inside in existing process, makes molding time short, imitates
Rate is high;It is completed under percussion action caused by molding is molded over the exciting of same exciting driving part 400 with high-temperature fusion, without more
Mold exchange saves time power.
Each technical characteristic of embodiment described above can be combined arbitrarily, to make description succinct, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, it is all considered to be the range of this specification record.
Embodiment described above only expresses the several embodiments of the utility model, and description is more specific and detailed,
But it should not be interpreted as limiting the scope of the present invention.It should be pointed out that for the common of this field
For technical staff, without departing from the concept of the premise utility, various modifications and improvements can be made, these all belong to
In the scope of protection of the utility model.Therefore, the protection domain of the utility model patent should be determined by the appended claims.
Claims (5)
1. a kind of super high molecular weight polymer abnormal shape product former, which is characterized in that including cover half, moving platen, locked mode plate
And exciting driving part;
The upper surface of the cover half has forming tank, and for the groove bottom of the forming tank in preset shape, the cover half is equipped with first
Temperature control runner;The side wall of the cover half is equipped with feeding-passage, and the one end open of the feeding-passage is in the outer wall of the cover half, separately
One end open is communicated in the forming tank;
The exciting driving part connects the moving platen, and the moving platen is equipped with the second temperature control runner;The cover half has
Connecting on the gas vent and/or the moving platen of the forming tank and the outer wall of the cover half has through two surface
Gas vent;The exciting driving part can drive the moving platen towards moving in the forming tank, the exciting driving portion
Part also is able to drive the dynamic model panel vibration by exciting effect;The moving platen is adapted to the forming tank, when the dynamic model
When plate is moved into the forming tank, there are gaps for the inner wall of the edge of the moving platen and the forming tank.
2. super high molecular weight polymer abnormal shape product former according to claim 1, which is characterized in that multiple described
Gas vent is uniformly distributed along the surrounding of the forming tank.
3. super high molecular weight polymer abnormal shape product former according to claim 1, which is characterized in that the exciting
The exciting function way of realization of driving part, which includes, is not limited in fluid pressure type exciting, inertia-type exciting, electrodynamic type exciting, electromagnetism
One or more of formula exciting, electric-liquid type exciting, pneumatic type exciting.
4. super high molecular weight polymer abnormal shape product former according to claim 3, which is characterized in that the exciting
The exciting function way of realization of driving part is fluid pressure type exciting mode.
5. super high molecular weight polymer abnormal shape product former according to claim 1, which is characterized in that further include more
A support column, multiple support columns are perpendicular to the upper surface of the cover half and are connected to the upper surface of the cover half, the lock
Template is set on multiple support columns.
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CN201721584587.0U CN207564828U (en) | 2017-11-23 | 2017-11-23 | A kind of super high molecular weight polymer abnormal shape product former |
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107696378A (en) * | 2017-11-23 | 2018-02-16 | 华南理工大学 | A kind of super high molecular weight polymer abnormal shape product forming method and equipment |
CN109262902A (en) * | 2018-08-23 | 2019-01-25 | 芜湖市崇兴乐塑胶有限公司 | A kind of reverse mould equipment for plastics-production |
CN114559590A (en) * | 2022-02-23 | 2022-05-31 | 高扬 | High silica molding system |
-
2017
- 2017-11-23 CN CN201721584587.0U patent/CN207564828U/en active Active
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107696378A (en) * | 2017-11-23 | 2018-02-16 | 华南理工大学 | A kind of super high molecular weight polymer abnormal shape product forming method and equipment |
CN109262902A (en) * | 2018-08-23 | 2019-01-25 | 芜湖市崇兴乐塑胶有限公司 | A kind of reverse mould equipment for plastics-production |
CN114559590A (en) * | 2022-02-23 | 2022-05-31 | 高扬 | High silica molding system |
CN114559590B (en) * | 2022-02-23 | 2024-03-19 | 高扬 | High silica molding system |
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