CN104527034B - Injection-stretch-blow injection molding injection method and device for plastic hollow products - Google Patents
Injection-stretch-blow injection molding injection method and device for plastic hollow products Download PDFInfo
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- CN104527034B CN104527034B CN201410769716.8A CN201410769716A CN104527034B CN 104527034 B CN104527034 B CN 104527034B CN 201410769716 A CN201410769716 A CN 201410769716A CN 104527034 B CN104527034 B CN 104527034B
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Abstract
The invention relates to an injection-stretch-blow injection molding injection method and device for plastic hollow products. A single-screw injection mode is adopted, a single-screw injection device is arranged in the middle of the front side of an injection molding device, and a material is injected to the injection molding device by the single-screw injection device; a motor and gear transmission direct driving mechanism is adopted for the single-screw injection device, a motor drives a single screw rod after the speed of the motor is changed by a gearbox, and molten plastic granules are pushed to the injection molding device by the single screw rod. The injection-stretch-blow injection molding injection method and device which are provided by the invention have the advantages that a single concentric injection oil cylinder pushes the single screw rod to inject, the stability is good, the manufacturing is easy and convenient, and the deviation is not easily generated in the injection process; the motor directly drives an oil cylinder piston and the screw rod to rotate through the gearbox, and a solation mode through a five-star motor is changed, so that a solation structure is simplified, the independence between injection solation and injection molding is also ensured, and the work efficiency can be improved; a rotary type spline connecting mode is adopted, so that the solation can be uniform, and the uniformity of injection molding is convenient, and thus the uniformity is ensured.
Description
Technical field
The present invention relates to a kind of machine-shaping device of plastic, more particularly, to a kind of plastic injection hollow product
Injection molding forming method and device, are mainly used in making jumbo water bottle, it can also be used to other plastic bottles having high demands and plastics
The making of container.Belong to plastic processing manufacture method and equipment technical field.
Background technology
With the development with rapid changepl. never-ending changes and improvements of plastics and its product, plastic processing makes and is developing progressively a huge industry
Cluster, almost all trades and professions all utilizing plastic.With the continuous development of working of plastics demand, the method for plastic processing also exists
Constantly update.Injection molding is the main plastics processing mode of one of which；So-called injection mo(u)lding is exactly by thermoplasticity
Plastics（PC, PE, PS, PP, PVC, PA, ABS etc.）In barrel Jing after external heat and screw rod rotational shear heat effect plasticizing, with one
In fixed injection pressure mould of the injection with chiller, the plastics processing of all types of plastic product after quick cooling, is obtained
Method.But simple injection is exigent for some, such as carafe, water bottle or medicine bottle etc., it is molded into using conventional
Type is difficult to reach requirement, as the mainstream processing technology of plastic hollow vessel, " note stretch blow " and " multi-layer co-extruded " technology day by day into
For people's focus of attention.So-called " note stretch blow " is the molten plastic injection injection mold for injecting injector, by drastically cold
But mold transparent with die bed base, then in another station by external heat in parison, after reaching uniform temperature, there will be die bed
Base extends certain ratio, is re-filled with compressed air, the hollow product needed for obtaining.
From this kind of processing mode, smooth bottleneck can not only be produced, and whole bottle-type can be strengthened, make bottle wall subtract
It is thin, save the material of bottle." note stretch blow " has become an important ring in polymer processing field now, with improving system
The advantages of product mechanical property, barrier properties for gases, applied range is a kind of irreplaceable forming technique of other bottle blowing machines.Mesh
Front " note stretch blow " majority for adopting is for " one-step method " technique；The technique for noting, draw, blow operation is completed in a machine " a step
Method "." one-step method " makees stretch blow action when being and being cooled to about 110 DEG C after the injection of bottle embryo, and which is advantageous in that power saving and without staff,
Reduce pollution.There is a kind of " two-step method " technique in addition, " two-step method " technique is separately to process injection and two steps of stretch blow,
Each carry out on two machines.First step injection machine outpours bucket bottle embryo, and the bucket bottle embryo of room temperature is reheated by second step
Post-tensioning is blown out as bottle, and this step is reheated at another, is completed on drawing-blowing moulding apparatus.
Existing " note stretch blow " method be although very suitable for make bottle class plastic containers, but present " note stretch blow " work
Skill is very high to equipment requirements, and many enterprises of China's last decade all attempted production " one-step method " " note stretch blow " former, walked
It is the road of Japanese blue or green wood stationary " three stations " and Japanese day essence formula " four stations " type, it is reported that, China has no less than four
The exploitation of plastics machinery factory input research, but neither one plastics machinery factory to be gone back so far and can be produced reach quality of item requirement
" one-step method " notes drawing-blowing hollow plastic forming machine, so that up to now, so-called " one-step method " " note stretch blow " former of China
All it is still from Japan, the import of developed country of the U.S..Why so, though there is many reasons, wherein our injection mo(u)lding skill
It is one of chief reason that art portion reaches a standard, as the note drawing-blowing hollow plastic forming machine in current Japan and the U.S. is all the five of employing
Star motor colloidal sol or U.S.'s White's RE motors, and adopt twin-tub injection pattern；Though five-pointed star motor colloidal sol or U.S. White RE horses
Up to small volume, power is big, the good feature of low-speed stability, but as these motors are all driven by hydraulic pressure,
So in running, easily limited by hydraulic system, so current injecting systems are not same with Clamping System
When work, but after first injecting systems colloidal sol, then push Clamping System, carry out injection mo(u)lding, that what is taken is substep operator
Formula, will so substantially reduce working performance, and the five-pointed star motor of domestic production at present due to precision the problems such as, failure ratio compared with
It is many, especially with twin screw cooperation in, easily there is the phenomenon of skew, cause the error of injection mo(u)lding to increase, therefore have very much must
This is improved.
Do not find there be the patent literature constructed with the present invention by patent retrieval, related to the present invention is main
Have following：
1st, Patent No. CN201010218354.5, the invention of entitled " injecting, drawing and blowing plastic by one-step method blow moulding machine "
Patent, which discloses a kind of injecting, drawing and blowing plastic by one-step method blow moulding machine, including：Install support, located at install support one
The injection device of side, the fixed mount located at installation support opposite side, the injection being fixed on fixed mount have die bed base component, stretch blow
Component, be installed on install support on be equipped with stretch blow component blow-moulding mould-closing mechanism assembly, rotary template assembly, located at note
Penetrate below die bed base component to be placed with injection station, product stripping component and the fast mold change mechanism of bottom parison mould；Institute
State rotary template assembly has the lower section of die bed base component located at injection, is driven by a power motor and revolve above the rotary template assembly
Transhipment is dynamic, is provided with an oil cylinder below；Injection has die bed base component having injection moulding semi-finished product in the parison mould of bottom to have bottom
Parison, oil cylinder are rotated after template assembly first rises, then are driven by power motor and rotated, and drive the semi-finished product to have bottom
Parison enters stretch blow die location, and rotary template assembly drops under the drive of oil cylinder in stretch blow mould, drawn by stretch blow component
Stretch and be blow molded for finished product bottle.
2nd, Patent No. CN201210324742.0, the reality of entitled " three station injecting, drawing and blowing plastic forming machine of one-step method "
With new patent, a kind of three station injecting, drawing and blowing plastic forming machine of one-step method is which disclosed, including：Install support, located at peace
The fixed mount of installation seat side, the injection device located at installing on support, the injection bottle embryo component being fixed on fixed mount, fixation
In the rotary template assembly on fixed mount, it is fixed on the pre-blowing die assembly installed on support, the stretch blow being fixed on fixed mount
Component and the product demoulding component being fixed on fixed mount；Injection has die bed base component to have injection in the parison mould of bottom in injection
Molding semi product has die bed base, and injection mould stamen hoist cylinder drives and rises, and injection has bottom parison mould hoist cylinder drive to decline,
Drive rotary template assembly to be rotated by rotary power motor afterwards, drive the semi-finished product to have die bed base to enter stretch blow mould
In, homoiothermic, stretching are carried out by pre-blowing die assembly by homoiothermic cylinder homoiothermic post-tensioning blow molding's finished product or first, after pre-blowing is semi-finished product
Bottle, then be finished product bottle by the blowing of stretch blow mould.
3rd, Patent No. CN201110075589.8, the practicality of entitled " injecting, drawing and blowing plastic by one-step method blow moulding machine "
New patent, which discloses a kind of injecting, drawing and blowing plastic by one-step method blow moulding machine, and which includes：Install support, located at installation
The injection device of support side, the fixed mount located at support opposite side is installed, the injection bottle embryo component being fixed on fixed mount, tune
Warm device, stretch blow component, be installed on install support on be equipped with stretch blow component blow-moulding mould-closing mechanism assembly, rotary template
Assembly, below injection bottle embryo component placing the injection station of preform mould, product demoulding component and quickly change the mold machine
Structure；Motion is rotated by a power motor above the rotary template assembly, fixed mount hoist cylinder is installed below；Injection
Bottle embryo component injection moulding semi-finished product bottle embryo in the preform mould, fixed mount hoist cylinder are rotated template assembly and first rise,
Driven by power motor again and rotated, drive the semi-finished product bottle embryo to enter stretch blow die location, rotary template assembly is in oil
Drop under the drive of cylinder in stretch blow mould, stretched and be blow molded by stretch blow component as finished product bottle.
4th, Patent No. CN200910305311.8, entitled " double-station reciprocating rotary type injection stretch blow blow moulding machine "
Utility model patent, which disclose a kind of double-station reciprocating rotary type injection stretch blow blow moulding machine, including main frame and mould
Tool, main frame include the frame, worktable panel being horizontally fixed in frame, the injecting systems being placed horizontally in frame, vertical
Injection clamping system, the blowing Clamping System and vertically disposed stretching device lain in a horizontal plane on panel in panel；Injection
Clamping system includes upper die plate, lower template, Mode-locking oil cylinder, guide pillar, rotary drive mechanism, rotating disk and core pulling oil cylinder；Lower template
It is connected with upper die plate by passing perpendicularly through the guide pillar of panel, Mode-locking oil cylinder is fixed on below panel, its tailpiece of the piston rod and lower template
Connection, rotating disk are arranged on the lower surface of upper die plate, and rotary drive mechanism is arranged on the top of upper die plate and is rotated with rotating disk
Connection, rotating disk rotary drive mechanism driving lower band open one's mouth module I, mouth mold group II make 180 ° of interval reciprocating rotaries, complete
Injection and stretch-blow exchange station, realize two functions of its injection and stretch-blow while completing.
Though above-mentioned these patents have been directed to method or the equipment of one-step injection stretch blow, carefully analyze and can be found that
These patents remain the improvement done in the type thinking of Japanese " three stations " and " four stations ", do not solve to be molded into
Some existing problems between colloidal sol and matched moulds in type, therefore still suffer from colloidal sol said before with injection mo(u)lding matched moulds not
Can carry out simultaneously, working performance is low, the problems such as offseting easily occurs in twin screw propulsion, and still needs further to be improved.
The content of the invention
Present invention aims at present in note stretch blow injection molding apparatus, have that working performance is low, double oil cylinders are pushed away
The problems such as entering screw rod and easily skew occur, a kind of new note stretch blow injection mo(u)lding material feeding method and device is proposed.The method and dress
Putting can not be while carries out, working performance is low, double oil cylinder augering screws easily go out with injection mo(u)lding matched moulds with effectively solving colloidal sol
The problems such as now offseting so that note stretch blow injection mo(u)lding is simpler easy.
The technology implementation scheme proposed by purpose of the invention is：A kind of plastic hollow product notes stretch blow molding material feeding
Method, using single screw rod material feeding mode, in the positive side middle setting single screw rod material injecting device of injection molding apparatus, by single spiral shell
Bar material injecting device gives injection molding apparatus material feeding；Described single screw rod material injecting device is directly driven with gear drive using motor
Mechanism, is driven single screw rod after gear-box speed change by motor, and the plastic granule of melting is pushed injection mo(u)lding by single screw rod
In device；The structure of described single screw rod material injecting device is that single screw rod is located at injection molding apparatus centre position just below, single
In screw cylinder, single screw rod is concentric oil cylinder material feeding screw rod to screw sleeve, and the termination of screw cylinder is provided with connection injection nozzle
Adpting flange, is provided with the barrel flange that barrel is fixed to the outlet of concentric injection oil cylinder in the middle part of screw cylinder, screw cylinder leads to
Punishment in advance drum flange is fixed on the outlet(discharge) flange of concentric injection oil cylinder, and has a section to extend in concentric injection oil cylinder；Single screw rod
Termination be splined shaft, splined shaft is inserted in spline housing, and spline housing is fixed on the oil cylinder piston of concentric injection oil cylinder again,
The other end of spline housing is inserted with drive splines, and drive splines is inserted in spline housing by the hole in the middle of oil cylinder piston, transmission
The adapter of the gear drive that the other end of spline is driven with motor by spline occludator is connected, and drives oil cylinder with this
Piston rotates, while also driving screw rod to rotate, realizes rotary heating material feeding；Spline occludator is locked by cap, and oil cylinder piston leads to
Wear-resistant sleeve is crossed in concentric injection cylinder block, whole single screw rod material injecting device is arranged on note stretch blow molding by support and sets
On standby rack rail, and can move along guide rail；Sprue is provided with before concentric injection oil cylinder；It is in material feeding, oily with one heart
Cylinder material injecting device is moved to by injection molding apparatus along guide rail, by the injection nozzle on concentric oil cylinder material injecting device by melt
Plastic slurry is injected into single having in the parison mould of bottom with injection molding apparatus.
Further, described single screw rod material feeding mode is while operation, fills in injection mo(u)lding with injection molding apparatus
When putting injection mo(u)lding, single screw rod material injecting device also melts operation in charging, to improve working performance.
A kind of injection device for realizing that above-mentioned plastic hollow product notes stretch blow molding shot method, including single screw rod, its
It is characterised by, screw rod is arranged in screw cylinder, and rotates the plastic slurry feeding injection mo(u)lding dress after melting in barrel
In putting；Described screw rod is arranged on the positive side centre position of injection molding apparatus, by injection nozzle and injection molding apparatus pair
Connect, and described single screw rod directly driven by motor and gear drive, by motor and gear drive and screw rod and
Screw cylinder combines to form single screw rod material injecting device；Single screw rod is driven after gear-box speed change by motor, and will by single screw rod
The plastic granule of melting is pushed in injection molding apparatus；The structure of described single screw rod material injecting device is located at for single screw rod and is molded into
Type device centre position just below, single screw rod are enclosed within screw cylinder, single screw rod be concentric oil cylinder material feeding screw rod, screw cylinder
Termination the adpting flange of connection injection nozzle is installed, be provided with the middle part of screw cylinder and barrel is fixed to into concentric injection oil cylinder goes out
The barrel flange of mouth, screw cylinder is fixed on the outlet(discharge) flange of concentric injection oil cylinder by barrel flange, and has a section to stretch into
To in concentric injection oil cylinder；The termination of single screw rod is splined shaft, and splined shaft is inserted in spline housing, and spline housing is fixed on again with one heart
On the oil cylinder piston of injection cylinder, drive splines is inserted with the other end of spline housing, drive splines is by the middle of oil cylinder piston
Hole be inserted in spline housing, the company of the gear drive that the other end of drive splines is driven with motor by spline occludator
Device connection is connect, and drives oil cylinder piston to rotate with this, while also driving screw rod to rotate, realize rotary heating material feeding；Spline is engaged
Device is locked by cap, and oil cylinder piston is arranged in concentric injection cylinder block by wear-resistant sleeve, and whole single screw rod material injecting device leads to
Cross support to be arranged on the rack rail of note stretch blow former, and can move along guide rail；Set before concentric injection oil cylinder
There is sprue；In material feeding, concentric oil cylinder material injecting device is moved to by injection molding apparatus along guide rail, is noted by concentric oil cylinder
The plastic slurry of thawing is injected into single having in the parison mould of bottom with injection molding apparatus by the injection nozzle on material device.
Further, described single screw rod material feeding mode is while operation, fills in injection mo(u)lding with injection molding apparatus
When putting injection mo(u)lding, single screw rod material injecting device also melts operation in charging, to improve working performance.
It is an advantage of the current invention that：
1st, using single concentric injection oil cylinder pushing single screw rod injection, with good stability, manufacture is easy, is difficult for the present invention
The phenomenon shifted in injection process；
2nd, the present invention directly drives oil cylinder piston and screw rod to rotate by gear-box using motor, changes conventional passing through
The mode of five-pointed star motor colloidal sol, can so simplify collosol structure, in turn ensure that the independence between injection colloidal sol and injection mo(u)lding
Property, working performance can be improved；
3rd, the present invention adopts rotary spline connection so that colloidal sol can be uniform, is easy to injection molding uniformity so that
There is the uniformity of die bed base more guaranteed.
Description of the drawings：
Fig. 1：For the explosion type structural representation of one embodiment of the invention；
Fig. 2：For the front schematic view of one embodiment of the invention；
Fig. 3：For the schematic top plan view of accompanying drawing 2.
Specific embodiment
Below in conjunction with drawings and Examples, the present invention will be further described.
Embodiment one
As illustrated in the accompanying drawings from 1 to 3, a kind of injection device for realizing that above-mentioned plastic hollow product notes stretch blow molding shot method, bag
Single screw rod 1 is included, single screw rod 1 is arranged in screw cylinder 2, and rotated the plastic slurry feeding injection after melting in barrel 2
In shaped device；Described single screw rod 1 is arranged on centre position behind injection molding apparatus, by injection nozzle 3 be molded into
Type device is docked, and described single screw rod 1 is directly driven with gear drive 5 by motor 4, by motor 4 and gear
Actuating device 5 forms single screw rod material injecting device with single concentric injection oil cylinder 6 and single screw rod 1 and the combination of screw cylinder 2；By motor 4
After the gear-box speed change of gear drive 5, drive the oil cylinder piston 7 of single concentric injection oil cylinder 6 to drive single screw rod 1 again, and
The plastic granule of melting is pushed in injection molding apparatus by single screw rod 1.
Further, described single screw rod material injecting device is led by the frame that base 8 is arranged on note stretch blow former 10
On rail 9, and can move along guide rail 9；During material feeding, plastic granule is added in single oil cylinder material injecting device with one heart, through heating
After device heating and melting, single oil cylinder material injecting device with one heart is driven to move to by injection molding apparatus by motor, and by being molded oil
Cylinder promotes single screw rod to dock with the charging aperture of injection molding apparatus, will be melted by the injection nozzle 3 on single oil cylinder material injecting device with one heart
The plastic slurry of change is injected into single having in the parison mould of bottom with injection molding apparatus.
Further, described single screw rod material feeding mode is while operation, fills in injection mo(u)lding with injection molding apparatus
When putting injection mo(u)lding, single screw rod material injecting device also melts operation in charging, to improve working performance.
Further, described single screw rod 1 is single oil cylinder material feeding screw rod with one heart, the single screw rod of single oil cylinder material feeding screw rod with one heart
1 is enclosed within screw cylinder 2, and the termination of single screw rod 1 is spline head 11, and spline head 11 is inserted in the spline housing 18 of matching spline,
Spline housing 18 is fixed on 7 termination of oil cylinder piston of concentric oil cylinder by securing member, the part of spline housing 18 be also associated with by
The drive splines 14 that motor is passed over by gear-box and adapter, and be rotated by drive splines 14；Screw cylinder 2 leads to
Cross securing member to be connected on the charging aperture of single concentric injection oil cylinder 6, and a section is extend in concentric oil cylinder；Plastic granule is single same
Heart injection cylinder 6 realizes rotary heating by the rotation of oil cylinder piston 7, and is filled by screw of injection to injection mo(u)lding after melting
In putting.
Further, the structure of described single screw rod material injecting device is that single screw rod 1 is located at injection molding apparatus just below
Centre position, single screw rod 1 are enclosed within screw cylinder 2, and the termination of screw cylinder 2 is provided with the adpting flange 16 of connection injection nozzle,
The middle part of screw cylinder 2 is provided with the barrel flange 17 that barrel is fixed to the outlet of concentric injection oil cylinder, and screw cylinder 2 passes through barrel
Flange 17 is fixed on the outlet(discharge) flange of single concentric injection oil cylinder 6, and has a section to extend in single concentric injection oil cylinder 6；Single spiral shell
The termination of bar 1 is splined shaft, and splined shaft is inserted in spline housing 18, and spline housing 18 is fixed on the oil cylinder of concentric injection oil cylinder again and lives
On plug 7, drive splines 14 is inserted with the other end of spline housing, drive splines 14 is inserted into flower by the hole in the middle of oil cylinder piston
In key set 18, the other end of drive splines 14 is by spline occludator 19 and the adapter of the gear drive 5 of the drive of motor 4
12 connections, and drive oil cylinder piston 7 to rotate with this, while also driving screw rod to rotate, realize rotary heating material feeding；Spline occludator
19 are locked by cap 20, and oil cylinder piston 7 is arranged in concentric injection cylinder block 13 by wear-resistant sleeve 15, whole single screw rod material feeding
Device is arranged on the guide rail 9 of frame by base 8；Sprue 21 is provided with before single concentric injection oil cylinder 6.
By above-described embodiment it can be seen that a kind of the invention further relates to plastic hollow product note stretch blow molding shot side
Method, using single screw rod material feeding mode, in the positive side middle setting single screw rod material injecting device of injection molding apparatus, by single screw rod
Material injecting device gives injection molding apparatus material feeding；Described single screw rod material injecting device is to directly drive machine using motor with gear drive
Structure, drives oil cylinder piston to drive single screw rod, and the plastic granule that will be melted by single screw rod again after gear-box speed change by motor
Push in injection molding apparatus.
Further, described single screw rod material injecting device is arranged on the rack rail of note stretch blow former by support
On, and can move along guide rail；During material feeding, plastic granule is added in single screw rod material injecting device, through heating devices heat
After thawing, single screw rod material injecting device is driven to move to by injection molding apparatus by motor or oil cylinder, and by being molded oil cylinder pushing
Single screw rod is docked with the charging aperture of injection molding apparatus, is injection molding apparatus material feeding.
Further, described single screw rod material feeding mode is while operation, fills in injection mo(u)lding with injection molding apparatus
When putting injection mo(u)lding, single screw rod material injecting device also melts operation in charging, to improve working performance.
Further, described single screw rod is single oil cylinder material feeding screw rod with one heart, in material feeding, single oil cylinder material injecting device with one heart
Move to by injection molding apparatus along guide rail, by the hydraulic intercepting injection nozzle on single oil cylinder material injecting device with one heart（Referred to as：
Injection nozzle）The plastic slurry of thawing is injected into into single having in the parison mould of bottom with injection molding apparatus.
Further, in screw cylinder, the termination of screw rod is flower to the screw sleeve of described single oil cylinder material feeding screw rod with one heart
Key head, spline head are inserted in the screw rod adapter of matching spline, and screw rod adapter is fixed on concentric oil cylinder by securing member
On oil cylinder piston termination, a part for screw rod adapter is also associated with the biography passed over by gear-box and adapter by motor
Dynamic spline, and be rotated by drive splines；Screw cylinder is connected on the charging aperture of concentric oil cylinder by securing member, and a section
It extend in concentric oil cylinder；Plastic granule realizes rotary heating in single oil cylinder with one heart by the rotation of oil cylinder piston, and in melting
Afterwards by screw of injection in injection molding apparatus.
It is an advantage of the current invention that：
1st, using single concentric injection oil cylinder single screw rod injection, with good stability, manufacture is easy, is difficult in injection for the present invention
During the phenomenon that shifts；
2nd, the present invention directly drives screw rod and oil cylinder piston to rotate by gear-box using motor, changes conventional passing through
The mode of five-pointed star motor colloidal sol, can so simplify collosol structure, in turn ensure that the independence between injection colloidal sol and injection mo(u)lding
Property, working performance can be improved；
3rd, the present invention adopts rotary spline connection so that colloidal sol can be uniform, is easy to injection molding uniformity so that
There is the uniformity of die bed base more guaranteed.
It will be apparent that above-described embodiment is simply to illustrate that several examples cited by the present invention, any in the art common
Technical staff simple change and replacement be all within protection scope of the present invention.
Claims (4)
1. a kind of plastic hollow product notes stretch blow injection mo(u)lding material feeding method, it is characterised in that using single screw rod material feeding mode,
The positive side middle setting single screw rod material injecting device of injection molding apparatus, is noted to injection molding apparatus by single screw rod material injecting device
Material；Described single screw rod material injecting device is, using motor and gear drive direct drive mechanism, to pass through gear-box speed change by motor
After drive single screw rod, and the plastic granule of melting is pushed in injection molding apparatus by single screw rod；Described single screw rod material feeding dress
The structure put is that single screw rod is located at injection molding apparatus centre position just below, and single screw rod is enclosed within screw cylinder, single screw rod
For concentric oil cylinder material feeding screw rod, the termination of screw cylinder is provided with the adpting flange of connection injection nozzle, sets in the middle part of screw cylinder
There is the barrel flange that barrel is fixed to the outlet of concentric injection oil cylinder, screw cylinder is fixed on concentric injection oil by barrel flange
On the outlet(discharge) flange of cylinder, and there is a section to extend in concentric injection oil cylinder；The termination of single screw rod is splined shaft, and splined shaft is inserted in
In spline housing, spline housing is fixed on the oil cylinder piston of concentric injection oil cylinder again, is inserted with transmission flower in the other end of spline housing
Key, drive splines are inserted in spline housing by the hole in the middle of oil cylinder piston, and the other end of drive splines passes through spline occludator
The adapter of the gear drive driven with motor is connected, and drives oil cylinder piston to rotate with this, while also driving screw rod to turn
It is dynamic, realize rotary heating material feeding；Spline occludator is locked by cap, and oil cylinder piston is arranged on concentric injection oil cylinder by wear-resistant sleeve
In cylinder body, whole single screw rod material injecting device is arranged on the rack rail of note stretch blow former by support, and can be along leading
Rail is moved；Sprue is provided with before concentric injection oil cylinder；In material feeding, concentric oil cylinder material injecting device moves to note along guide rail
By molded device, the plastic slurry of thawing is injected into by the injection nozzle on concentric oil cylinder material injecting device single with injection mo(u)lding
Device has in the parison mould of bottom.
2. plastic hollow product as claimed in claim 1 notes stretch blow molding shot method, it is characterised in that described single screw rod
Material feeding mode and injection molding apparatus are the single screw rod material injecting devices while operation, in injection molding apparatus injection mo(u)lding
Melt operation in charging, to improve working performance.
3. a kind of material injecting device for realizing that plastic hollow product described in claim 1 notes stretch blow molding shot method, including single
Screw rod, it is characterised in that screw rod is arranged in screw cylinder, and rotate the plastic slurry feeding injection after melting in barrel
In shaped device；Described screw rod is arranged on the positive side centre position of injection molding apparatus, by injection nozzle and injection mo(u)lding
Device is docked, and described single screw rod is directly driven by motor and gear drive, by motor and gear drive and
Screw rod and screw cylinder combine to form single screw rod material injecting device；Single screw rod is driven after gear-box speed change by motor, and by list
Screw rod pushes the plastic granule of melting in injection molding apparatus；The structure of described single screw rod material injecting device is located at for single screw rod
Injection molding apparatus centre position just below, single screw rod are enclosed within screw cylinder, single screw rod be concentric oil cylinder material feeding screw rod, spiral shell
The termination of bar barrel is provided with the adpting flange of connection injection nozzle, is provided with and for barrel is fixed to concentric injection in the middle part of screw cylinder
The barrel flange of oil cylinder outlet, screw cylinder is fixed on the outlet(discharge) flange of concentric injection oil cylinder by barrel flange, and has one
Section is extend in concentric injection oil cylinder；The termination of single screw rod is splined shaft, and splined shaft is inserted in spline housing, spline housing fixation again
On the oil cylinder piston of concentric injection oil cylinder, drive splines is inserted with the other end of spline housing, drive splines is lived by oil cylinder
Hole in the middle of plug is inserted in spline housing, and the other end of drive splines is by spline occludator and the loading drive gear of motor drive
The adapter connection put, and drive oil cylinder piston to rotate with this, while also driving screw rod to rotate, realize rotary heating material feeding；Flower
Key occludator is locked by cap, and oil cylinder piston is arranged in concentric injection cylinder block by wear-resistant sleeve, whole single screw rod material feeding
Device is arranged on the rack rail of note stretch blow former by support, and can be moved along guide rail；Concentric injection oil cylinder
Sprue is provided with above；In material feeding, concentric oil cylinder material injecting device is moved to by injection molding apparatus along guide rail, by concentric
The plastic slurry of thawing is injected into single having in the parison mould of bottom with injection molding apparatus by the injection nozzle on oil cylinder material injecting device.
4. plastic hollow product as claimed in claim 3 notes stretch blow material injector for forming, it is characterised in that described single screw rod
Material feeding mode and injection molding apparatus are the single screw rod material injecting devices while operation, in injection molding apparatus injection mo(u)lding
Melt operation in charging, to improve working performance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410769716.8A CN104527034B (en) | 2014-12-15 | 2014-12-15 | Injection-stretch-blow injection molding injection method and device for plastic hollow products |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410769716.8A CN104527034B (en) | 2014-12-15 | 2014-12-15 | Injection-stretch-blow injection molding injection method and device for plastic hollow products |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104527034A CN104527034A (en) | 2015-04-22 |
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| CN113183395B (en) * | 2021-05-13 | 2023-03-10 | 重庆城市管理职业学院 | Electromechanical integrated injection molding device for workpiece production and processing |
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| CN101483365A (en) * | 2003-08-25 | 2009-07-15 | 赫斯基注射器成型系统有限公司 | Driving component used for rotation and translation of a shaft |
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| CN203496240U (en) * | 2013-08-25 | 2014-03-26 | 浙江德库玛机械有限公司 | Ejection mechanism of injection molding machine |
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| CN2759763Y (en) * | 2004-12-30 | 2006-02-22 | 宁波千普机械制造有限公司 | Pouring-drawing-blowing hollow plastic forming machine with frequency conversion, microcomputer and hydraulic control |
| CN101077611A (en) * | 2007-05-31 | 2007-11-28 | 华南理工大学 | Pulse type shock processing on-line compound injection molding method and its equipment |
| CN103753762B (en) * | 2014-01-24 | 2016-04-13 | 广东富瑞精密机械有限公司 | A kind of classification storing injection machine |
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| CN101483365A (en) * | 2003-08-25 | 2009-07-15 | 赫斯基注射器成型系统有限公司 | Driving component used for rotation and translation of a shaft |
| CN2685052Y (en) * | 2004-03-05 | 2005-03-16 | 夏善海 | Double-servo energy-saving injection moulding machine |
| CN102126277A (en) * | 2010-01-14 | 2011-07-20 | 海天塑机集团有限公司 | Injection molding mechanism with single cylinder |
| CN203496240U (en) * | 2013-08-25 | 2014-03-26 | 浙江德库玛机械有限公司 | Ejection mechanism of injection molding machine |
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