CN206264300U - A kind of multiaxis volume fluctuation Coinjection molding apparatus without check ring - Google Patents
A kind of multiaxis volume fluctuation Coinjection molding apparatus without check ring Download PDFInfo
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- CN206264300U CN206264300U CN201621176421.0U CN201621176421U CN206264300U CN 206264300 U CN206264300 U CN 206264300U CN 201621176421 U CN201621176421 U CN 201621176421U CN 206264300 U CN206264300 U CN 206264300U
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- injection
- check ring
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Abstract
The utility model discloses a kind of multiaxis volume fluctuation Coinjection molding apparatus without check ring.The oil motor of the device is connected with power distributor, and power distributor is fixed on motor base；The plunger rod of injection cylinder is connected respectively with motor base and injection ram, and injection ram is placed in oil cylinder, and the control system for exporting PWM electric signal is connected with the hydraulic efficiency servo-valve on injection cylinder；At least two eccentric rotors of intermeshing and counter rotating are placed in barrel；All it is arranged at intervals with the center line and rotation axis off-center of spiral section and flat segments, spiral section and flat segments at least two eccentric rotors, conversely, barrel head is connected with barrel, nozzle is connected by nozzle connection seat with barrel head for the eccentric direction of adjacent eccentric rotor.The utility model does not have loss of the check ring to vibrational energy, enhances influence of the pressure of pulsatile change to mold filling and pressure maintaining period.
Description
Technical field
The utility model is related to a kind of injection moulding, and more particularly to a kind of plastic blend is material modified and long fibre is online
Compound material Coinjection molding apparatus, belong to polymer material molding process equipment field.
Background technology
Injection moulding has the advantages that production efficiency high, strong adaptability, purposes are wide, is almost suitable for all thermoplastics
And its processing and forming of compound system.According to the composition and structural principle of injection molding apparatus, current injection forming equipment master
It is divided into screw plunger type and reciprocating screw type two types.
Reciprocating screw type injector uses single screw rod plasticizing system, in general the screw rod of plasticizing system and barrel draw ratio
Relative extruder it is smaller, and reciprocating screw type injector plasticizing metering process in screw rod while rotation while retreat, screw rod is effective
Contraction in length, therefore the mixed effect of reciprocating screw type injector is poor, it is difficult to realize that plastic blend is material modified and long fibre
The injection moulding of online compounding material.Thus in order to meet the quality requirement of functionalization injection-molded item, it usually needs use and " first match somebody with somebody
The two-step method forming method and technique of mixed granulation, then injection moulding ", this moulding process cause the thermomechanical course that material experiences
The problems such as length, high energy consumption, material be degradable and thermal decomposition, product properties improve difficult.
The screw cylinder plasticizing system of screw plunger type injector only needs to be responsible for the plasticizing of material, screw rod in forming process
Effective length it is constant, mixed effect is improve to a certain extent, improve quality of item；Can using twin-screw plasticizing system
Mixed effect is plastified with further raising, is conducive to realizing that plastic blend is material modified and long fibre is matched somebody with somebody online by " one-step method "
The injection moulding of mixed material.Screw plunger type injector improves mixed effect to a certain extent, optimizes the performance of product,
But metering is plastified in forming process with the flow direction of injection filling mould stage melt conversely, this Flow of Goods and Materials mode can cause elder generation
The rear portion that the material for completing is pushed to injecting cavity is plastified, the material that completion is plastified afterwards is located at the front portion of injecting cavity, so as to cause into
" first-in last-out " of material during type, residence time destribution is uneven to wait not enough.The material of injecting cavity is introduced into injecting cavity
Residence time it is long, easily cause material to be excessively heated and cause the thermal degradation and thermal decomposition of material, then into injecting cavity
Material is possible to because heated time is short, plasticizing is insufficient causes quality of item defect.
In order to meet the high-quality requirement of injection-molded item, outfield auxiliary dynamic plasticizing and injection molding processing and forming is to improve injection system
The conventional method of quality.Chinese invention patent " the electromagnetic polymer dynamic injection forming side of Patent No. 96108387.5
Method and device " realizes the axial pulse of injection screw by the way of electromagnetic energy conversion, effectively shortens injection moulding week
Phase, improve injection-molded item quality；Chinese invention patent " the injector screw axial pulse of Patent No. 200510033386.7
Displacement method and device " uses hydraulic exciting that the axial pulse of injection screw is realized for the method for driving the motion of power,
So as to the injection pressure for producing pulsatile change improves the adaptability and quality of item to material；Patent No.
200510032625.7 Chinese invention patent " multi-screwrod vibrating field induction plastic milling method and equipment " by
Mechanical oscillation are superimposed on the three screw rods center driving screw of yi word pattern arrangement, central driving screw does axial arteries and veins in the presence of vibration force
It is dynamic, central driving screw and the between cog back lash cyclically-varying of both sides sub-screw axial direction are realized, realize forcing plasticizing mixing, then tie
Zygostyle plug injection device, realizes that dynamic plasticizing and injection molding is molded.
The above method improves product properties and injection moulding efficiency, but either reciprocating screw type note to a certain extent
Penetrate machine use Screw injection device or screw plunger type injector use plunger injection device, fusion plastification,
Metering, mold filling and packing stage easily cause melt to flow backwards due to the resistance etc. of runner so that using non-return screw head or its
Its backstop is preventing the refluence of melt.On the one hand non-return screw head or other backstops cause that device structure is complicated, plus
Work manufacturing cost increases；Another aspect backstop can cause to form dead angle in runner, and the pressure loss and energy consumption increase, while meeting
The degraded and thermal decomposition of material are caused because of Strong shear, product properties is reduced.Simultaneously because check ring is deposited in injection device
It is serious with the minim gap pressure loss that non-return ring seat is formed by check ring in, melt.Outfield assisted injection molding is produced
Raw vibrational energy pass through backstop when by rapid decay, seriously constrain pulse pressure inducing injection molding processing technology pair
The raising degree of injected articles performance, limits the range of application of dynamic injection forming processing technology.
It thus is seen that exist for current modifying plastics material and long fiber-reinforcing material injection molding forming method and equipment
Deficiency, develop it is a kind of with energy consumption it is low, thermomechanical course is short, to material wide adaptability, dispersion mixing is good the features such as nothing
Volume fluctuation injection moulding method and the device of check ring have great importance to Polymer moulding.
Utility model content
The purpose of this utility model is to overcome that injector plasticizing mixed effect conventional at present is poor, residence time of material divides
Cloth is uneven, need using the deficiency such as baroque backstop, there is provided one kind processing and manufacturing low cost, modifying plastics material
And the online compound effects of long fibre are good, the volume fluctuation Coinjection molding apparatus of the low material without check ring of energy consumption.
To realize the utility model purpose, adopt the following technical scheme that：
A kind of multiaxis volume fluctuation Coinjection molding apparatus without check ring：Including oil motor, power distributor, motor base,
Plunger rod, injection cylinder, injection ram, barrel and at least two eccentric rotors；Oil motor is connected with power distributor, power
Distributor is fixed on motor base；The plunger rod of injection cylinder is connected respectively with motor base and injection ram, and injection ram is placed in
In oil cylinder, the control system for exporting PWM electric signal is connected with the hydraulic efficiency servo-valve on injection cylinder；It is intermeshed and incorgruous
At least two eccentric rotors of rotation are placed in barrel；One one end is defeated with power distributor at least two eccentric rotors
Shaft is connected, and the other end is placed in the barrel head being connected with barrel；Spiral is all arranged at intervals with least two eccentric rotors
Section and flat segments, the center line and rotation axis off-center of spiral section and flat segments, the eccentric direction of adjacent eccentric rotor conversely,
Barrel head is connected with barrel, and nozzle is connected by nozzle connection seat with barrel head.
Further to realize the utility model purpose, it is preferable that the oil motor is connected by screw with power distributor.
Preferably, the plunger rod of the injection cylinder and motor base and injection ram respectively by the first stripped nut and
Connected with the second stripped nut.
Preferably, one one end passes through spline housing with the output shaft of power distributor at least two eccentric rotors
It is connected.
Preferably, the nozzle passes through thread connection with nozzle connection seat；Barrel head is connected by screw with barrel.
Preferably, the eccentric rotor is three, and two second eccentric rotors are symmetrically distributed in the two of the first eccentric rotor
Side, the second eccentric rotor is generally aligned in the same plane and is intermeshed with the first eccentric rotor.
Preferably, the eccentric rotor is two, and two eccentric rotors are arranged in parallel in barrel.
Preferably, the oil motor, power distributor and at least two one-line arrangements of eccentric rotor.
Preferably, the motor base is arranged on the guide rail of frame.
The utility model oil motor drives the eccentric rotor of plasticizing apparatus to rotate and realizes modifying plastics by power distributor
The plasticizing mixing of material, melting conveying, while the melt conveying that mixes of plasticizing is in the barrel head of eccentric rotor front end, molten
Eccentric rotor is retreated and realizes storing with metering simultaneously with power distributor and oil motor in the presence of body pressure；After the completion of metering,
Multi-eccentric rotor is moved to mould direction simultaneously in company with power distributor and oil motor in the presence of injection cylinder pressure, is promoted
The melt of eccentric rotor front end, into mold filling and pressurize is carried out in the die cavity of mould, treats that product is cooled down in mold cavity by nozzle
Mold afterwards, ejection obtains injection-molded item.
The eccentric spiral shell rib of a rotor is entered into the screw channel of the eccentric rotor for engaging when the rotor rotates, by sky
Between the cyclically-varying of volume realize the complete positive conveyance of material so that in plasticizing metering, injection filling mould and packing stage
Melt will not be produced to flow backwards, thus without check ring in process of injection molding；Simultaneously in mold filling and packing stage, control system is defeated
Go out PWM electric signal carries out pulsation treatment to the pressure and flow of hydraulic system respectively, produces the machine of frequency and adjustable amplitude
Tool vibrates, and a plurality of eccentric rotor does the vibration of property synchronizing cycle so that eccentric rotor head space volume periodically pulsing, realizes one
Plant the multiaxis volume fluctuation injection moulding without check ring.
The output shaft rotation of power distributor is driven when the utility model oil motor rotates, and then drives eccentric rotor in material
Counter rotating realizes mixing, plasticizing and the conveying of material in cylinder；Material of the melt conveying that plasticizing is mixed to eccentric rotor front end
In cylinder head, eccentric rotor, power distributor, oil motor and motor base are synchronously retreated and realize metering under melt pressure effect；Meter
After the completion of amount, motor base, oil motor, power distributor and eccentric rotor advanced in unison, push away in the presence of injection cylinder oil pressure
The melt of dynamic eccentric rotor front end is entered into the die cavity of mould by nozzle, because mold filling is defeated with control system in pressure maintaining period
Go out PWM electric signal carries out pulsation treatment to the pressure and flow of hydraulic system respectively, produces the machine of frequency and adjustable amplitude
Tool vibrates, thus the pressure of injection cylinder is the temporally periodically variable pressure of superposition one on the basis of average value so that partially
The spatial volume periodically pulsing of heart rotor head, realizes injection filling mould and the pressurize of volume fluctuation induction.
The utility model compared with prior art, has the following advantages that：
1st, the injecting systems without backstop simplify the structure of injection device, and device structure is more compact, floor space
It is small, fabricate low cost；
2nd, the injecting systems without backstop reduce the damage of fluctuation pressure during pulse pressure inducing injection molding
Consumption degree, contributes to raising of the injection molding technique of pulse pressure inducing to injected articles performance；
3rd, eccentric rotor plasticizing apparatus improve plasticizing mixed effect, realize that plastic blend is modified and long fibre is matched somebody with somebody online
Mixed injection moulding, the shortening of thermomechanical course, thermal degradation and the decomposition of material experience are reduced, and product properties is improved；Fluctuation pressure is lured
The injection filling mould led shortens the injection moulding cycle with pressure maintaining period, reduces injection energy consumption.
4th, the injecting systems without check ring avoid forming dead angle in runner, reduce injection pressure loss, reducing energy consumption；
5th, plasticizing mixed effect is improve by multi-eccentric rotor, has widened moulding process window, improve to material
Adaptability.
Brief description of the drawings
Fig. 1 is multiaxis (three axles) the volume fluctuation Coinjection molding apparatus structural representation of embodiment 1 without check ring；
Fig. 2 is three eccentric rotors and its location diagram with barrel in Fig. 1；
Fig. 3 is the A-A of Fig. 1 to sectional view (eliminating part)；
Fig. 4 is B-B direction section view in Fig. 3；
Fig. 5 be Fig. 4 in C-C to section view；
Fig. 6 is multiaxis (twin shaft) the volume fluctuation Coinjection molding apparatus structural representation of embodiment 2 without check ring.
Specific embodiment
The utility model is described further with reference to the accompanying drawings and examples, but the utility model is claimed
Scope is not limited to the scope of embodiment statement.
Embodiment 1
With reference to Fig. 1, a kind of multiaxis (three axles) volume fluctuation Coinjection molding apparatus without check ring, including oil motor 1, power
Distributor 2, the first stripped nut 3, motor base 4, spline housing 5, plunger rod 6, injection cylinder 7, injection ram 8, second are locked
Round nut 9, barrel 10, the first eccentric rotor 11, the second eccentric rotor 12, barrel first 13, nozzle connecting seat 14 and nozzle 15；Oil
Motor 1 is connected by screw with power distributor 2, and power distributor 2 is fixed on motor base 4；The plunger rod 6 of injection cylinder with
Motor base 4 and injection ram 8 are connected by the first stripped nut 3 and with the second stripped nut 9 respectively, and injection ram 8 is put
In in oil cylinder 7, piston plunger 8 is moved back and forth in oil cylinder in the presence of oil pressure；Motor base 4 is arranged on the guide rail of frame,
The linear reciprocating motion in the case where the injection ram 8 of hydraulic action drives；At a fully engaged and counter rotating the first eccentric rotor 11 and
Second eccentric rotor 12 (two) is placed in the endoporus of barrel 10；Two second eccentric rotors 12 are symmetrically distributed in first eccentric turn
The both sides of son 11, the second eccentric rotor 12 is generally aligned in the same plane and is intermeshed with the first eccentric rotor 11；First eccentric rotor
11 and second one end of eccentric rotor 12 be connected by spline housing 5 with the output shaft of power distributor 2, the other end is placed in and material
In the connected barrel first 13 of cylinder 5；The active force of oil motor 1 drives the first eccentric rotor 11 and second eccentric turn by spline housing 5
The rotation of son 12 and axial movement；Spiral section and straight is all arranged at intervals with first eccentric rotor 11 and the second eccentric rotor 12
The center line and rotation axis off-center of section, spiral section and flat segments, adjacent the first eccentric rotor 11 and the second eccentric rotor 12
Eccentric direction conversely, because eccentric screw section and flat segments with axially exist it is eccentric, when the first eccentric rotor 11 and second is inclined
Radial distance generating period changes heart rotor 12 causes adjacent two eccentric rotor when rotating between, thus by the first eccentric rotor
The closing space volume formed between 11 and the outer surface of the second eccentric rotor 12, barrel endoporus and eccentric flat segments periodically becomes
Change, adjacent eccentric screw section is flowed into by eccentric flat segments, realize the complete positive conveyance of material；Nozzle connecting seat 14,
Barrel first 13 is coupled by screw with barrel 10, and nozzle 15 passes through thread connection with nozzle connection seat 14.
Plasticizing mixing and storing measure when, oil motor 1 rotates, by power distributor 2 drive the first eccentric rotor 11 and
Second eccentric rotor 12 rotates in barrel 10, cyclic stretching squeezing action of the material in barrel 10 between eccentric rotor
And fusion plastification under additional heat effect, plastify the melt for mixing and be transported in the barrel first 13 before eccentric rotor head,
In the presence of melt pressure in barrel first 13, eccentric rotor is retreated together in company with motor base 4, power distributor 2, oil motor 1,
Going-back position is controlled by rack-mounted travel switch, realize the different metering process of Different Weight product with
Storing, is that injection filling mould is prepared.
After the completion of metering, control system exports PWM electric signal respectively to the hydraulic servo on injection cylinder
Valve is controlled, and the pressure and flow to hydraulic oil in injection cylinder carry out pulsation treatment, produce the arteries and veins of frequency and adjustable amplitude
Dynamic pressure, thus the pressure of injection cylinder is the temporally periodically variable pressure of superposition one on the basis of average value, in pulsation
The lower injection rod 6 caused in injection cylinder of pressure effect produces mechanical oscillation.Injected in the presence of pressure oil in injection cylinder 7
Piston 8 is moved right, and motor base 4 and power distributor 2 mounted thereto, oil motor 1 are driven together by injecting piston rod 6
Move right, and then promote the first eccentric rotor 11 and the second eccentric rotor 12 to move right together so that in barrel first 13
Melt is entered into the die cavity of mould by nozzle 15, realizes injection filling mould and the pressurize of volume fluctuation induction.Treat product in mould
After being cooled down in tool die cavity, die sinking ejection obtains injection-molded item, completes shot forming process.
With reference to Fig. 1, Fig. 2, two adjacent thereto second eccentric rotors 12 of the first eccentric rotor 11 are at a fully engaged, eccentric rotor
The endoporus of outer surface and barrel forms the space of closing, spatial volume generating period change when eccentric rotor rotates, and realizes
The complete positive conveyance of material；And in mold filling and packing stage, eccentric rotor axial movement is held without rotation, the closing space
Product keeps constant, and material will not enter the space, so as to realize the process of injection molding without check ring.
With reference to Fig. 2, Fig. 3, the first eccentric rotor 11 is intermeshed with two the second eccentric rotors 12, eccentric rotor bias spiral shell
The pitch for revolving section is tapered into along melt conveying direction, that is to say, that the axial direction formed between eccentric rotor outer wall and barrel endoporus
Spatial volume rotates cyclically-varying vertically with armature spindle so that material is transported on edge in plasticizing mixes, transports metering process
Direction is acted on by periodically variable volume tensile deformation.
With reference to Fig. 4, Fig. 5, because the first eccentric rotor 11, the second eccentric rotor 12 have the spiral shell for rotating eccentric axis
Rotation section and flat segments, the footpath when eccentric rotor rotates between eccentric rotor and eccentric rotor outer surface and the endoporus of barrel 10
To distance cyclically-varying with the rotation of eccentric rotor so that material is radially square in plasticizing mixes, transports metering process
Acted on to by periodically variable volume tensile deformation, realize the plasticizing transport process of tensile deformation domination, improve modeling
Change mixed effect.
In the present embodiment, the plasticizing mixing arrangement that the first eccentric rotor 11, the second eccentric rotor 12 are constituted with barrel passes through
The cyclically-varying for transporting space is treated the complete positive displacement of injection material and is transported, plasticizing metering, injection filling mould and guarantor in material
Pressure cooling stage will not produce melt to flow backwards, and realize a kind of time of its injection shaping without check ring.
In the present embodiment, the first eccentric rotor 11 and the second bias that parallel arrangement is provided with the barrel of plasticizing apparatus turn
Son 12, is plastified by the form of volume transportation and transports material, improves plasticizing stability.
Embodiment 2
Embodiment 2 is that rotor quantity is different from the main distinction of embodiment 1, is 3 eccentric rotors in embodiment 1, and real
Apply only 2 eccentric rotors in example 2.With reference to Fig. 6, multiaxis (twin shaft) volume fluctuation injection moulding without check ring of the embodiment
Device mainly includes oil motor 16, power distributor 17, the first stripped nut 18, motor base 19, spline housing 20, plunger rod
21st, injection cylinder 22, injection ram 23, the second stripped nut 24, diplopore barrel 25, the first eccentric rotor 26, second are eccentric
The parts such as rotor 27, barrel first 28, nozzle connecting seat 29, nozzle 30.Oil motor 16 is connected with power distributor 17 by screw
Connect and be fixed on motor base 19；Motor base 19 and injection piston bar 21 and injection ram 23 by the first stripped nut 18 and
Second stripped nut 24 is connected, piston plunger 23 is placed in oil cylinder 22, in the presence of oil pressure piston plunger 23 in oil cylinder
Linear reciprocating motion；At a fully engaged the first eccentric rotor 26, the second eccentric rotor 27 are placed in the endoporus of diplopore barrel 25；The
One eccentric rotor 26, the one end of the second eccentric rotor 27 be connected with the output shaft of power distributor 17 by spline housing 20, in flower
In the presence of key set 20 rotor driven rotation and be axially moved, in the barrel first 28 that the other end is placed in barrel 20 is connected；Nozzle
Connecting seat 29, barrel first 28 is coupled by screw with diplopore barrel 25, nozzle 30 passes through thread connection with nozzle connection seat 29.
Plasticizing is compounded when measuring, oil motor 16 rotates, drive the first eccentric rotor 26, second inclined by power distributor 17
Material of the heart rotor 27 in the diplopore barrel 25 in rotation, diplopore barrel 25 eccentric rotor the effect of periodicity extrusion stretching and
The melt that fusion plastification under additional heat effect, plasticizing are mixed is transported in the barrel first 28 before eccentric rotor, in barrel
In body first 28 in the presence of melt pressure, eccentric rotor and motor base 19, power distributor 17, oil motor 16 retreat simultaneously, it is real
The metering of existing material.
After the completion of metering, control system output PWM electric signal carries out arteries and veins to the pressure and flow of hydraulic system respectively
Dynamic treatment, produces the mechanical oscillation of frequency and adjustable amplitude, thus the pressure of injection cylinder is that one is superimposed on the basis of average value
Temporally periodically variable pressure.In the presence of pressure oil in injection cylinder 22 injection ram 23 move right, by note
Penetrating piston rod 21 drives motor base 19 and power distributor 17 mounted thereto, oil motor 16 to move right together and then push away
Dynamic first eccentric rotor 26, the second eccentric rotor 27 move right together, so that the melt in barrel first 28 is entered by nozzle 30
Enter in the die cavity of mould, realize injection filling mould and the pressurize of volume fluctuation induction.After product is cooled down in mold cavity, open
Mould ejection obtains injection-molded item, completes shot forming process.
It is similar with triple-spool plasticizing apparatus, eccentric rotor rotate when eccentric rotor between and eccentric rotor outer surface with it is double
The distance between the endoporus of hole barrel 25 cyclically-varying with the rotation of eccentric rotor so that material is plastifying mixing, transporting meter
Radially acted on by periodically variable volume tensile deformation during amount, improve plasticizing mixed effect.
In the utility model, a plurality of eccentric rotor " one " font parallel arrangement in barrel, adjacent two eccentric rotor is mutual
Engagement, forms closing space, spatial volume generating period when rotor rotates between eccentric rotor outer surface and barrel endoporus
Change, realizes the complete positive conveyance to material, so that melt will not be produced to flow backwards in injection moulding process, it is real
A kind of existing multi-eccentric rotor volume study of pulsating injection molding without check ring.
The utility model is caused in mold filling and packing stage multi-eccentric rotor property synchronizing cycle by the pulsation of injection pressure
, be incorporated into for the pressure of pulsatile change by polymer melt by pulsation, eccentric rotor head space volume periodically pulsing change
In mold filling and pressure maintaining period；Due to there is no check ring in injection moulding apparatus, the attenuation degree of dynamic shear energy is reduced, enhanced
Influence of the pressure of pulsatile change to injection molding process, is especially reduction of the manufacturing cost of device.
The utility model drive device and the plasticizing one-line arrangement of mixing arrangement, eccentric rotor plasticizing system mixing efficiency
High, effect is good, realizes that plastic blend is material modified and one-line double, three eccentricity rotor of long fiber reinforced plastics material is online
Compounding dynamic injection forming.
The utility model apparatus structure is whole to gather, the high, good mixing effect that plastifies mixing efficiency, is conducive to shortening material experience
Thermomechanical course, reducing energy consumption, raising product properties.
Claims (9)
1. a kind of multiaxis volume fluctuation Coinjection molding apparatus without check ring, it is characterised in that distributed including oil motor, power
Device, motor base, plunger rod, injection cylinder, injection ram, barrel and at least two eccentric rotors；Oil motor is distributed with power
Device is connected, and power distributor is fixed on motor base；The plunger rod of injection cylinder is connected respectively with motor base and injection ram, note
Penetrate piston to be placed in oil cylinder, the control system for exporting PWM electric signal is connected with the hydraulic efficiency servo-valve on injection cylinder；Mutually
At least two eccentric rotors of engagement and counter rotating are placed in barrel；One one end and power at least two eccentric rotors
The output shaft of distributor is connected, and the other end is placed in the barrel head being connected with barrel；All it is spaced at least two eccentric rotors
Be provided with the center line and rotation axis off-center of spiral section and flat segments, spiral section and flat segments, adjacent eccentric rotor it is inclined
The heart is in opposite direction, and barrel head is connected with barrel, and nozzle is connected by nozzle connection seat with barrel head.
2. multiaxis volume fluctuation Coinjection molding apparatus without check ring according to claim 1, it is characterised in that the oil
Motor is connected by screw with power distributor.
3. multiaxis volume fluctuation Coinjection molding apparatus without check ring according to claim 1, it is characterised in that the note
The plunger rod for penetrating oil cylinder is connected by the first stripped nut and with the second stripped nut respectively with motor base and injection ram.
4. multiaxis volume fluctuation Coinjection molding apparatus without check ring according to claim 1, it is characterised in that it is described extremely
One one end is connected with the output shaft of power distributor by spline housing in few two eccentric rotors.
5. multiaxis volume fluctuation Coinjection molding apparatus without check ring according to claim 1, it is characterised in that the spray
Mouth passes through thread connection with nozzle connection seat；Barrel head is connected by screw with barrel.
6. multiaxis volume fluctuation Coinjection molding apparatus without check ring according to claim 1, it is characterised in that it is described partially
Heart rotor is three, and two second eccentric rotors are symmetrically distributed in the both sides of the first eccentric rotor, the second eccentric rotor and first
Eccentric rotor is generally aligned in the same plane and is intermeshed.
7. multiaxis volume fluctuation Coinjection molding apparatus without check ring according to claim 1, it is characterised in that it is described partially
Heart rotor is two, and two eccentric rotors are arranged in parallel in barrel.
8. multiaxis volume fluctuation Coinjection molding apparatus without check ring according to claim 1, it is characterised in that the oil
Motor, power distributor and at least two one-line arrangements of eccentric rotor.
9. multiaxis volume fluctuation Coinjection molding apparatus without check ring according to claim 1, it is characterised in that the horse
It is arranged on the guide rail of frame up to seat.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106493924A (en) * | 2016-11-02 | 2017-03-15 | 华南理工大学 | A kind of multiaxis volume fluctuation injection moulding method and device without check ring |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106493924A (en) * | 2016-11-02 | 2017-03-15 | 华南理工大学 | A kind of multiaxis volume fluctuation injection moulding method and device without check ring |
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