CN104669590A - Injection-stretch-blow molding device for hollow plastic product - Google Patents
Injection-stretch-blow molding device for hollow plastic product Download PDFInfo
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- CN104669590A CN104669590A CN201410769739.9A CN201410769739A CN104669590A CN 104669590 A CN104669590 A CN 104669590A CN 201410769739 A CN201410769739 A CN 201410769739A CN 104669590 A CN104669590 A CN 104669590A
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Abstract
The invention discloses an injection-stretch-blow molding device for a hollow plastic product. The injection-stretch-blow molding device comprises an engine base, wherein an injection molding device and a stretch-blow molding device are arranged on the engine base; the injection molding device is located at one side of the engine base; the stretch-blow molding device is located at the other side of the engine base; the injection molding device is a single-screw rod injection molding device, and is in a single-screw rod material injection manner; the single-screw rod injection molding device is composed of two large parts, namely a vertical injection molding device and a horizontally distributed single-screw rod injection device; the single-screw rod injection device is used for fusing plastic pellets, injecting the fused plastic pellets into an injection mold of the injection molding device, and molding a parison with a bottom through rapidly cooling; the stretch-blow molding device comprises a stretching device and a blow molding device; the parison with the bottom is packed into the stretch-blow molding device and then penetrate through a stretch-blow synchronization assembling mechanism; stretch-blow molding is carried out under the action of the stretching device and the blow molding device; a secondary heating device is arranged between the injection molding device and the stretch-blow molding device; the parison with the bottom after the injection is heated for the second time and then is transferred into the stretch-blow molding device to be subjected to the stretch-blow molding.
Description
Technical field
The present invention relates to a kind of machine-shaping device of plastic products, especially relate to a kind of making processing method and device of plastics Injection molded hollow articles, be mainly used in making jumbo water bottle, also can be used for other and require high plastic bottle and the making of plastic containers.Belong to plastic processing preparation method and equipment technical field.
Background technology
Along with the development of making rapid progress of plastics and goods thereof, plastic processing makes and develops into a huge industry cluster gradually, and almost all trades and professions are all utilizing plastic products.Along with the development of working of plastics demand, the method for plastic processing is also in continuous renewal.Injection molding is wherein a kind of main plastics processing mode; So-called injection mo(u)lding be exactly by thermoplastic (PC, PE, PS, PP, PVC, PA, ABS etc.) in barrel after external heat and screw rod rotational shear heat effect plasticizing, injecting with certain injection pressure has in the mould of cooling device, obtains the plastics processing method of all types of plastic goods fast after cooling.But simple injection moulding is very high for ask for something, as beverage bottle, water bottle or medicine bottle etc., adopt conventional injection mo(u)lding to be difficult to reach requirement, as the main flow process technology of plastic hollow vessel, " note stretch blow " and " multi-layer co-extruded " technology day by day become the focus that people pay close attention to.So-called " note stretch blow " is that molten plastic injector injected injects injection mold, being molded by quick refrigeration transparent has die bed base, then at another station by external heat in parison, to die bed base be had to extend certain ratio after reaching uniform temperature, be filled with compressed air again, the hollow product needed for acquisition.
Select this kind of processing mode, smooth bottleneck can not only be produced, and whole bottle-type can be strengthened, make bottle wall thinning, save the material of bottle." note stretch blow " has become a ring important in polymer processing field now, and have and improve the advantage such as Mechanical Properties of Products, barrier properties for gases, applied range is the irreplaceable a kind of forming techniques of other bottle blowing machines." note stretch blow " majority of current employing is " one-step method " technique; In a machine, complete note, draw, blow the technique of operation " one-step method ".Do stretch blow action when " one-step method " is and is cooled to about 110 DEG C after the injection moulding of bottle embryo, its benefit is power saving and without staff, decreasing pollution.Also have a kind of " two-step method " technique in addition, " two-step method " technique is by injection moulding and the separately process of stretch blow two steps, and two machines carry out separately.First step injection machine outpours bucket bottle embryo, and the bucket bottle embryo of room temperature is heated post-tensioning and blows out as bottle by second step again, and this step heats at another again, and drawing-blowing moulding apparatus completes.
Existing " note stretch blow " is although the plastic containers of method very applicable making bottle class, but present " note stretch blow " technique is very high to equipment requirement, nearly ten years many enterprises of China all attempted production " one-step method " " note stretch blow " former, walk be Japan blue or green wooden stationary " three stations " and Japan day essence formula " four stations " type road, it is reported, China has and is no less than four plastics machinery factory input researchs exploitations, but go back neither one plastics machinery factory so far can produce " one-step method " that reach quality of item requirement and note drawing-blowing hollow plastic forming machine, so that up to now, what is called " one-step method " " note stretch blow " former of China is all still from Japan, the import of developed country of the U.S., why like this, mainly because the reason of the following aspects:
1, said " one-step method " to note stretch blow shaping, it is relatively simple that it compares multi-layer co-extruded hollow molding for base system, requires low, and the injector of a station symbol standard just can meet the demands substantially.But in existing note stretch blow blow molding process, require high to heating system, control also there is certain difficulty, especially how to control the orientation temperature of material, this plays a part key to the shaping of goods.Bottle-blowing system mainly wants restrained stretching speed and blowing pressure, and to guarantee to obtain the uniform goods of wall thickness, but our domestic manufacturing technology is for " three stations " or " four stations ", is difficult to reach requirement.
2, " one-step method " is adopted to note stretch blow shaping, need to utilize advanced computer-aided engineering (CAE) technology to carry out simulative optimization to Polymer Processing is shaping in note stretch blow, avoid by virtue of experience, the blindness to be brought by the mode of repetition test and correction, but this needs technology and level, it is time of at substantial and fund not only, and extend the construction cycle, add product cost.
3, another needs the problem paid close attention to be designing and developing of note stretch blow mould.In fact " three stations " or " four stations " is very high to the requirement of mould, and current most of domestic manufacturer only focuses on the exploitation of main frame, ignores the research and development manufacture of mould.And to note drawing-blowing forming machine be the equipment that main frame and mould organically combine, the importance of mould is greater than main frame to a certain extent, and whether mould is reached requirement by the production firm why Here it is has is classified as quality control standard.Therefore, only develop qualified note stretch blow mould, resolve the problem of the aspect such as the design of the material of mould, hot-runner nozzle and hot flow path, the control system of temperature, be just expected to produce advanced note stretch blow equipment at home.
4, existing multistation " one-step method " note stretch blow shaping adopted be all rotating disk form, but our rotating disk running at a high speed and position stability inadequate; The efficiency that rotating disk runs and positioning performance impact is shaped.Note drawing-blowing hollow plastic forming machine is high speed molding equipment, and it is the indispensable component part of high-speed molding that rotating disk runs up.Rotating disk running must reach such requirement, and starting High Rotation Speed, is being about 100mm place from next station, and slowing down suddenly rotates at a slow speed, to anchor point without swing without impacting safe location.From the domestic machine operation developed, rotating disk runs up speed not, has swing phenomenon when rotating disk is located at each station anchor point place, often needs to swing several times to locate, and have impact on production efficiency and quality.
In a word, in our the domestic restriction being subject to processing manufacturing technology, make our type according to Japan produce " one-step method " and note stretch blow former there is very large difficulty, necessary this to be improved.
Do not find that there is the patent literature constructed with the present invention by patent retrieval, related to the present invention mainly containing is following:
1, the patent No. is CN201010218354.5, name is called the patent of invention of " injecting, drawing and blowing plastic by one-step method blow moulding machine ", which disclose a kind of injecting, drawing and blowing plastic by one-step method blow moulding machine, comprise: mounting base, be located at the injection device of mounting base side, be located at the fixed mount of mounting base opposite side, the injection of being fixed on fixed mount has die bed base assembly, stretch blow assembly, be installed on the blow-moulding mould-closing mechanism assembly that mounting base is equipped with stretch blow assembly, rotary template assembly, be located at injection to have below die bed base assembly to be placed with the injection station of end parison mould, product stripping assembly, and fast mold change mechanism, described rotary template assembly is located at the below that injection has die bed base assembly, is moved, be provided with an oil cylinder below it above this rotary template assembly by a power motor driven rotary, injection has die bed base assembly to have die bed base there being injection moulding semi-finished product in end parison mould, after oil cylinder driven rotary template assembly first rises, driven by power motor again and rotate, these semi-finished product are driven to have die bed base to enter stretch blow die location, rotary template assembly drops in stretch blow mould under the drive of oil cylinder, is stretched and blowing is finished product bottle by stretch blow assembly.
2, the patent No. is CN201210324742.0, name is called the utility model patent of " one-step method three station injecting, drawing and blowing plastic forming machine ", which disclose a kind of one-step method three station injecting, drawing and blowing plastic forming machine, comprising: mounting base, the fixed mount being located at mounting base side, the injection device be located on mounting base, the injection bottle embryo assembly be fixed on fixed mount, the rotary template assembly be fixed on fixed mount, the pre-blowing die assembly be fixed on mounting base, be fixed on the stretch blow assembly on fixed mount and be fixed on the product demoulding assembly on fixed mount; Injection has die bed base assembly to have injection moulding semi-finished product in end parison mould to have die bed base in injection, injection mould stamen hoist cylinder drives and rises, injection has end parison mould hoist cylinder to drive decline, after drive rotary template assembly to rotate by rotary power motor, these semi-finished product are driven to have die bed base to enter in stretch blow mould, be a semi-finished product bottle after carrying out temperature adjustment, stretching, pre-blowing by temperature adjustment cylinder temperature adjustment post-tensioning blow molding's finished product or elder generation by pre-blowing die assembly, then be finished product bottle by the blowing of stretch blow mould.
3, the patent No. is CN201110075589.8, name is called the utility model patent of " injecting, drawing and blowing plastic by one-step method blow moulding machine ", which disclose a kind of injecting, drawing and blowing plastic by one-step method blow moulding machine, it comprises: mounting base, be located at the injection device of mounting base side, be located at the fixed mount of mounting base opposite side, be fixed on the injection bottle embryo assembly on fixed mount, register, stretch blow assembly, be installed on the blow-moulding mould-closing mechanism assembly that mounting base is equipped with stretch blow assembly, rotary template assembly, be located at below injection bottle embryo assembly to place the injection station of preform mould, product demoulding assembly, and fast mold change mechanism, moved by a power motor driven rotary above this rotary template assembly, fixed mount hoist cylinder is installed below it, injection bottle embryo assembly is injection moulding semi-finished product bottle embryo in preform mould, fixed mount hoist cylinder driven rotary template assembly first rises, driven by power motor again and rotate, this semi-finished product bottle embryo is driven to enter stretch blow die location, rotary template assembly drops in stretch blow mould under the drive of oil cylinder, is stretched and blowing is finished product bottle by stretch blow assembly.
4, the patent No. is CN200910305311.8, name is called the utility model patent of " double-station reciprocating rotary type injection stretch blow blow moulding machine ", which disclose a kind of double-station reciprocating rotary type injection stretch blow blow moulding machine, comprise main frame and mould, main frame comprise frame, the worktable panel be horizontally fixed in frame, the injecting systems be placed horizontally in frame, perpendicular to panel injection moulding clamping system, lie in a horizontal plane in blowing Clamping System on panel and vertically disposed stretching device; Injection moulding clamping system comprises cope match-plate pattern, lower bolster, Mode-locking oil cylinder, guide pillar, rotary drive mechanism, rotating disc and oil cylinder of loosing core; Lower bolster is connected with cope match-plate pattern by the guide pillar passing perpendicularly through panel, Mode-locking oil cylinder is fixed on lower panels, its tailpiece of the piston rod is connected with lower bolster, rotating disc is arranged on the lower surface of cope match-plate pattern, rotary drive mechanism is arranged on the top of cope match-plate pattern and is rotationally connected with rotating disc, rotating disc is with the module I that opens one's mouth under the driving of rotary drive mechanism, mouth module II makes 180 ° of interval reciprocating rotaries, completes injection and stretch-blow and exchanges station, realizes its injection and stretch-blow two functions complete simultaneously.
Though these patents above-mentioned have all related to method or the equipment of one-step injection stretch blow, but carefully analyze and can find that these patents remain the improvement done in the type thinking of Japan's " three stations " and " four stations ", therefore still really cannot solve our domestic manufacturing capacity at present and not reach Japanese level, the puzzlement that the quality brought cannot ensure, still needs to be improved further.
Summary of the invention
The object of the invention is to, for current domestic production one-step injection stretch blow equipment, to there is the problem that multistation is difficult to ensure the quality of products, propose a kind of new one-step injection stretch blow shaped device.This device effectively can solve the domestic deficiency existed in manufacturing technology at present, makes the making of one-step injection stretch blow equipment more simple.
Implementer's case that object according to the present invention proposes is: a kind of plastic hollow goods note stretch blow shaped device, comprise support, support is provided with injection molding apparatus and stretch blow shaped device, and injection molding apparatus is positioned at the side of support, the opposite side of support is stretch blow shaped device, its feature is, described injection molding apparatus is singe screw injection molding apparatus, takes singe screw material feeding; Singe screw injection molding apparatus erects injection molding apparatus by one and horizontally disposed singe screw injection device two large divisions is combined to form, singe screw injection device injects after plastic granule melting in the injection mold of injection molding apparatus, then has been molded die bed base by quick refrigeration; Described stretch blow shaped device comprises a stretching device and a blowing device, has die bed base to load by the synchronous clamping of stretch blow after stretch blow shaped device, in the drop-down blow molding of effect of stretching device and blowing device; And be provided with second heating apparatus between injection molding apparatus and stretch blow shaped device, after injection moulding to have die bed base after post bake, first forward the stretch blow of stretch blow shaped device again to shaping.
Further, between described injection molding apparatus and second heating apparatus, be provided with rotating machine arm, by rotating machine arm, have die bed base taking-up rear send in second heating apparatus shaping at injection molding apparatus heated.
Further, rotary operation mechanical arm is provided with between described second heating apparatus and stretch blow shaped device, by rotary operation mechanical arm by after post bake have die bed base to take out after to be transferred to the stretch blow of stretch blow shaped device inner face shaping, blow the hollow product needed for pull-out.
Further, described singe screw injection device arranges a concentric oil cylinder material injecting device of list just below at injection moulding apparatus, plastic granule is by after melting in singe screw device, and that notes single injection allocation molding apparatus by single oil cylinder material injecting device with one heart has in end parison mould, has been injection molded into die bed base.
Further, described single oil cylinder material injecting device is with one heart arranged on the guide rail of frame, and can move along guide rail, when material feeding, single oil cylinder material injecting device with one heart moves to by injection moulding apparatus along guide rail, by the hydraulic intercepting injection nozzle on single oil cylinder material injecting device with one heart, the plastic slurry of thawing is injected into having in end parison-forming die of single cylinder injection mold apparatus.
Further, described singe screw material feeding arranges an electronic stock melting device after injection moulding apparatus, after plastic granule passes through thawing in electronic stock melting device, have in end parison-forming die by single oil cylinder material injecting device with one heart by what melt that plastics note single cylinder injection mold apparatus, be injection molded into die bed base.
Further, described injection moulding apparatus is vertical injection moulding apparatus, the end parison mould that has of injection moulding apparatus is vertically arranged between two heel posts, on two columns, cover has the inject cores that can move up and down, when being injected with die bed base, inject cores is displaced downwardly in mouthful mould, and lower pipe embryo mould rises to a mouthful mould, form one and closed have die bed base cavity, hydraulic intercepting injection nozzle on single cylinder material injecting device is docked to the interface of hot flow path, the plastic slurry of thawing being injected into from hot flow path by hydraulic intercepting injection nozzle closed has in die bed base cavity, and forming one has die bed base.
Further, described second heating apparatus is a kind of rotatable heater, has die bed base to be rotated by self in rotatable heater and realizes homogeneous heating.
Further, described rotating machine arm is 180 degree and horizontally rotates manipulator, rotating machine arm will be after injection moulding apparatus will have die bed base injection formed, injection mold will be opened, rotating machine arm will go to injection moulding apparatus side, and extend in injection mold die bed base will be had to take out, then rotate to secondary rotating heater side, die bed base will be had to put into secondary rotating heater and to heat.
Further, described rotary operation mechanical arm is dual rotary work jibs, dual rotary work jibs drives on the one hand on second heating apparatus the spinning of die bed base, and what after post bake completes, drive post bake in addition has die bed base to forward to blow in pulling shaping device and carry out blowing pulling shaping.
Further; the described pulling shaping device that blows is that hydraulic pressure and air pressure blow pulling shaping device; or electronic and air pressure blows pulling shaping device, have die bed base blowing in pulling shaping device after by blow-moulding mould-closing mechanism matched moulds, the drawing device that blows driven by hydraulic pressure or electronic or air pressure carries out blowing pulling shaping.
Further, described blow-moulding mould-closing mechanism adopts 4 synchronous clampings of hydraulic jack, and clamping is arranged on and blows on pulling shaping device; Comprise cover half part and dynamic model part, cover half partial fixing is on the cover half fixed head blowing pulling shaping device, dynamic model partial fixing is on 4 hydraulic jacks blowing pulling shaping device, to be sent to by rotary operation mechanical arm when there being die bed base and to blow after in pulling shaping device, by 4 hydraulic jacks, synchronous die sinking and matched moulds.
The invention has the advantages that:
1, the present invention adopts single concentric injection oil cylinder pushing singe screw to inject, and has good stability, manufactures easy, and the phenomenon offset not easily occurs in injection process;
2, the present invention adopts manipulator to carry out station conversion, and the mode by rotating disk changed in the past carries out the replacing of station, can improve operating speed like this, can ensure again accuracy and the flexibility of conversion station;
3, the present invention adopts rotary secondary to heat, and effectively can change the uneven phenomenon of current post bake, make die bed base stretch blow more easily ensure uniformity.
4, the present invention adopts dual rotary working rig mechanical arm, be convenient to the heating of processed product rotary secondary into and out of, carry out after heat with processed product stretching, blow molding, propose product, raising operating efficiency.
accompanying drawing illustrates:
Fig. 1: be the structural upright schematic diagram of one embodiment of the invention;
Fig. 2: be the front schematic view of one embodiment of the invention;
Fig. 3: be the schematic top plan view of accompanying drawing 2;
Fig. 4: be the side schematic view of accompanying drawing 2;
Fig. 5: be the another side schematic diagram of accompanying drawing 2.
Detailed description of the invention
Below in conjunction with drawings and Examples, the present invention will be further described.
Embodiment one
As shown in accompanying drawing 1-5, a kind of plastic hollow goods note stretch blow shaped device, comprise support 1, support 1 is provided with injection molding apparatus 2 and stretch blow shaped device 3, and injection molding apparatus 2 is positioned at the side of support, the opposite side of support 1 is stretch blow shaped device 3, and its feature is, described injection molding apparatus 2 is single oil cylinder pushing singe screw injection molding apparatus with one heart, takes single oil cylinder pushing singe screw material feeding with one heart; Injection molding apparatus 5 is combined to form by an injection molded device 4 and horizontally disposed concentric oil cylinder pushing singe screw injection device 5 two large divisions of list, single oil cylinder pushing singe screw injection device 5 with one heart injects injection molded device 4 by after plastic granule melting, have die bed base injection forming mold 6, then molded die bed base by quick refrigeration; Described stretch blow shaped device 3 comprises a stretching device and a blowing device, has die bed base to load by the synchronous clamping 7 of stretch blow after stretch blow shaped device 3, in the drop-down blow molding of effect of stretching device and blowing device; And be provided with second heating apparatus 8 between injection molding apparatus 2 and stretch blow shaped device 3, after injection moulding to have die bed base after post bake, first forward the stretch blow of stretch blow shaped device again to shaping.
Further, rotating machine arm 9 is provided with between described injection molding apparatus 2 and second heating apparatus 8, rotating machine arm 9 is arranged on the crossbeam 20 of frame, have die bed base taking-up rear send in second heating apparatus 8 shaping at injection molding apparatus 2 is heated by rotating machine arm 9.
Further, rotary operation mechanical arm 10 is provided with between described second heating apparatus 8 and stretch blow shaped device 3, by rotary operation mechanical arm 10 by after post bake have die bed base to take out after to be transferred to the stretch blow of stretch blow shaped device 3 inner face shaping, blow the hollow product needed for pull-out.
Further, described singe screw injection device 5 arranges a list concentric oil cylinder pushing singe screw material injecting device 11 just below at injection moulding apparatus, after plastic granule passes through thawing in single oil cylinder material injecting device 11 with one heart, have in end parison mould by single oil cylinder material injecting device 11 note with one heart to single injection allocation molding apparatus, be injection molded into die bed base.
Further, described single oil cylinder material injecting device 11 is with one heart arranged on the guide rail 12 of frame, and can move along guide rail 12, after plastic granule enters single oil cylinder material injecting device 11 with one heart by charging aperture 19, through heating and melting, injected by single oil cylinder pushing singe screw with one heart; When material feeding, it is other that single oil cylinder material injecting device 11 with one heart moves to injection molding apparatus 4 along guide rail 12, by the hydraulic intercepting injection nozzle 13 on single oil cylinder material injecting device 11 with one heart, the plastic slurry of thawing is injected into having in end parison mould of single injection allocation molding apparatus.
Further, described injection moulding apparatus 4 is vertical injection moulding apparatus, the die bed base injection forming mold 6 that has of injection moulding apparatus 4 is vertically arranged between two heel posts 14, on two columns 14, cover has the inject cores 15 that can move up and down, when being injected with die bed base, inject cores 15 is displaced downwardly in mouthful mould 17, and have the lower pipe embryo mould 18 of end parison mould to rise to mouthful mould 17, form one and closed have die bed base cavity, hydraulic intercepting injection nozzle 13 on single oil cylinder material injecting device 11 is with one heart docked to the interface of hot flow path, the plastic slurry of thawing being injected into from hot flow path by hydraulic intercepting injection nozzle 13 closed has in die bed base cavity, form one and have die bed base.
Further, described second heating apparatus 8 is a kind of rotatable heater, has die bed base to be rotated by self in rotatable heater and realizes homogeneous heating.
Further, described rotating machine arm 9 is 180 degree and horizontally rotates manipulator, rotating machine arm 9 will be after injection moulding apparatus will have die bed base injection formed, injection mold 6 will be opened, rotating machine arm 9 will go to injection moulding apparatus 6 side, and extend in injection mold 6 die bed base will be had to take out, then rotate to secondary rotating heater 8 side, die bed base will be had to put into dual rotary manipulator, and dual rotary manipulator will have die bed base to enter in secondary rotating heater 8 to heat again.
Further, described rotary operation mechanical arm 10 is dual rotary work jibs, rotary operation mechanical arm 10 is the same with rotating machine arm 9 to be arranged on the crossbeam 20 of frame, dual rotary work jibs 10 1 aspect drives the spinning of die bed base on second heating apparatus, and what after post bake completes, drive post bake in addition has die bed base to forward to blow in pulling shaping device and carry out blowing pulling shaping.
Further; the described pulling shaping device 3 that blows blows pulling shaping device for hydraulic pressure and air pressure; or electronic and air pressure blows pulling shaping device, have die bed base blowing in pulling shaping device after by blow-moulding mould-closing mechanism 16 matched moulds, the drawing device that blows driven by hydraulic pressure or electronic or air pressure carries out blowing pulling shaping.
Further, described blow-moulding mould-closing mechanism 16 adopts 4 synchronous clampings of hydraulic jack, and clamping is arranged on and blows on pulling shaping device 3; Comprise cover half part and dynamic model part, cover half partial fixing is on the cover half fixed head blowing pulling shaping device, dynamic model partial fixing is on 4 hydraulic jacks blowing pulling shaping device, to be sent to by rotary operation mechanical arm when there being die bed base and to blow after in pulling shaping device, by 4 hydraulic jacks, synchronous die sinking and matched moulds.
The described pulling shaping that blows is injection drawing blow, and to there being the inflation of die bed base to adopt single stage compress air, air pressure is about 2MPa.The temperature of stretch-blow mould is set as 105 DEG C ~ 110 DEG C, to do thermal finalization process to bottle.
Embodiment two
Embodiment two is the same with the basic skills of embodiment one, for a kind of plastic hollow goods note stretch blow shaped device, adopt one step processing technique, molten plastic injector injected injects injection mold, being molded by quick refrigeration transparent has die bed base, then at another station by external heat in parison, to die bed base be had to extend certain ratio after reaching uniform temperature, be filled with compressed air again, hollow product needed for acquisition, its feature is, take the electronic lead-screw material feeding of single cylinder, and be injection molded into die bed base in injection moulding apparatus after, die bed base will be had to take out in injection moulding apparatus by rotating machine arm, send into again in a reheater and carry out secondary rotating heating, then blown in pulling shaping device by rotary operation mechanical arm rotation feeding and carry out blowing pulling shaping, blow the hollow product needed for pull-out.
The material feeding of described single cylinder electronic lead-screw arranges an electronic single cylinder singe screw material injecting device, heater is provided with at electronic singe screw material injecting device, plastic granule has in end parison mould by the plastics after being melted by electronic single cylinder singe screw material injecting device lead-screw pressure injection after melting to injection moulding apparatus in singe screw material injecting device, by injection moulding apparatus, the plastic slurry of thawing has been injection molded into die bed base.
Described electronic single cylinder singe screw material injecting device is arranged on the guide rail of frame, and can move along guide rail, when material feeding, material injecting device moves to by injection mold apparatus along guide rail, by the injection nozzle on material injecting device, the plastic slurry of thawing is injected into having in end parison mould of injection moulding apparatus.
Described injection moulding apparatus is vertical injection moulding apparatus, the end parison mould that has of injection moulding apparatus is vertically arranged between two root posts, on two columns, cover has the inject cores that can move up and down, when being injected with die bed base, inject cores is displaced downwardly in mouthful mould, and mouth mould falls to lower pipe Pei Monei, form one and closed have die bed base cavity, injection nozzle on material injecting device is docked to the interface of hot flow path, the plastic slurry of thawing being injected into from hot flow path by injection nozzle closed has in die bed base cavity, and forming one has die bed base.
Described rotating machine arm will have die bed base to take out in injection moulding apparatus, send in a reheater that to carry out post bake be arrange a crossbearer at the another side that injection mold apparatus is relative with material injecting device again, crossbearer hangs a rotatable manipulator work jibs; After injection moulding apparatus will have die bed base injection formed, injection mold will be opened, manipulator work jibs will go to injection mold apparatus side, and extend in injection mold die bed base will be had to take out, rotate again to secondary rotating heater side, die bed base will be had to put into second heating apparatus and carry out rotary heating.
Described second heating apparatus is a kind of rotatable heater, has die bed base to be rotated by self in rotatable heater and realizes homogeneous heating.
Described by rotary operation mechanical arm rotate send into blow in pulling shaping device carry out blowing pulling shaping be by post bake after have die bed base, taken out from second heating apparatus by rotary operation mechanical arm, and by rotary operation mechanical arm rotate to blowing in pulling shaping device, by blow draw in row shaping.
The described pulling shaping device that blows is electronicly blow pulling shaping device, having die bed base blowing in pulling shaping device after by blow-moulding mould-closing mechanism matched moulds, being undertaken blowing pulling shaping by the drawing device that blows of motorized motions.
The described pulling shaping that blows comprises injection, stretch, blowing, Two-stage Compression air is adopted to there being the inflation of die bed base, namely first inject low pressure 1.0 ~ 1.5MPa air, having die bed base to be obtained by inflation, after contacting with die cavity soon, reinject high pressure 2.5 ~ 3.0MPa air, makes bottle and die cavity close contact and cooling and shaping fast.The temperature of stretch-blow mould generally should obtain lower 100 DEG C ~ 110 DEG C, contribute to like this shortening molding cycle.
The invention has the advantages that:
1, the present invention adopts single concentric injection oil cylinder singe screw to inject, and has good stability, manufactures easy, and the phenomenon offset not easily occurs in injection process;
2, the present invention adopts manipulator to carry out station conversion, and the mode by rotating disk changed in the past carries out the replacing of station, can improve operating speed like this, can ensure again accuracy and the flexibility of conversion station;
3, the present invention adopts rotary secondary to heat, and effectively can change the uneven phenomenon of current post bake, make die bed base stretch blow more easily ensure uniformity.
4, the present invention adopts dual rotary working rig mechanical arm, is convenient to the shaping charging of stretch blow and discharging, improves operating efficiency.
Obviously, above-described embodiment is just in order to illustrate the several examples cited by the present invention, and simple change and the replacement of any those ordinary skill in the art are all within protection scope of the present invention.
Claims (10)
1. a plastic hollow goods note stretch blow shaped device, comprise support, support is provided with injection molding apparatus and stretch blow shaped device, and injection molding apparatus is positioned at the side of support, the opposite side of support is stretch blow shaped device, it is characterized in that, described injection molding apparatus is singe screw injection molding apparatus, takes singe screw material feeding; Singe screw injection molding apparatus erects injection molding apparatus by one and horizontally disposed singe screw injection device two large divisions is combined to form, singe screw injection device injects after plastic granule melting in the injection mold of injection molding apparatus, then has been molded die bed base by quick refrigeration; Described stretch blow shaped device comprises a stretching device and a blowing device, has die bed base to load by the synchronous clamping of stretch blow after stretch blow shaped device, in the drop-down blow molding of effect of stretching device and blowing device; And be provided with second heating apparatus between injection molding apparatus and stretch blow shaped device, after injection moulding to have die bed base after post bake, first forward the stretch blow of stretch blow shaped device again to shaping.
2. plastic hollow goods note stretch blow shaped device as claimed in claim 1, it is characterized in that, be provided with rotating machine arm between described injection molding apparatus and second heating apparatus, by rotating machine arm, have die bed base taking-up rear send in second heating apparatus shaping at injection molding apparatus heated.
3. plastic hollow goods note stretch blow shaped device as claimed in claim 1, it is characterized in that, rotary operation mechanical arm is provided with between described second heating apparatus and stretch blow shaped device, by rotary operation mechanical arm by after post bake have die bed base to take out after to be transferred to the stretch blow of stretch blow shaped device inner face shaping, blow the hollow product needed for pull-out.
4. plastic hollow goods note stretch blow shaped device as claimed in claim 1, it is characterized in that, described singe screw injection device arranges a concentric oil cylinder material injecting device of list just below at injection moulding apparatus, after plastic granule passes through thawing in singe screw device, that notes single injection allocation molding apparatus by single oil cylinder material injecting device with one heart has in end parison mould, has been injection molded into die bed base.
5. plastic hollow goods note stretch blow shaped device as claimed in claim 4, it is characterized in that, described single oil cylinder material injecting device is with one heart arranged on the guide rail of frame, and can move along guide rail, when material feeding, single oil cylinder material injecting device with one heart moves to by injection moulding apparatus along guide rail, by the hydraulic intercepting injection nozzle on single oil cylinder material injecting device with one heart, the plastic slurry of thawing is injected into having in end parison-forming die of single cylinder injection mold apparatus.
6. plastic hollow goods note stretch blow shaped device as claimed in claim 4, it is characterized in that, described injection moulding apparatus is vertical injection moulding apparatus, the end parison mould that has of injection moulding apparatus is vertically arranged between two heel posts, on two columns, cover has the inject cores that can move up and down, when being injected with die bed base, inject cores is displaced downwardly in mouthful mould, and lower pipe embryo mould rises to a mouthful mould, form one and closed have die bed base cavity, hydraulic intercepting injection nozzle on single cylinder material injecting device is docked to the interface of hot flow path, the plastic slurry of thawing being injected into from hot flow path by hydraulic intercepting injection nozzle closed has in die bed base cavity, form one and have die bed base.
7. plastic hollow goods note stretch blow shaped device as claimed in claim 1, it is characterized in that, described second heating apparatus is a kind of rotatable heater, has die bed base to be rotated by self in rotatable heater and realizes homogeneous heating.
8. plastic hollow goods note stretch blow shaped device as claimed in claim 1, it is characterized in that, described rotating machine arm is 180 degree and horizontally rotates manipulator, rotating machine arm will be after injection moulding apparatus will have die bed base injection formed, to open injection mold, rotating machine arm will go to injection moulding apparatus side, and extend in injection mold die bed base will be had to take out, rotate again to secondary rotating heater side, die bed base will be had to put into secondary rotating heater and heat.
9. plastic hollow goods note stretch blow shaped device as claimed in claim 1, it is characterized in that, described rotary operation mechanical arm is dual rotary work jibs, dual rotary work jibs drives on the one hand on second heating apparatus the spinning of die bed base, and what after post bake completes, drive post bake in addition has die bed base to forward to blow in pulling shaping device and carry out blowing pulling shaping.
10. plastic hollow goods note stretch blow shaped device as claimed in claim 1; it is characterized in that; the described pulling shaping device that blows is that hydraulic pressure and air pressure blow pulling shaping device; or electronic and air pressure blows pulling shaping device; have die bed base blowing in pulling shaping device after by blow-moulding mould-closing mechanism matched moulds, the drawing device that blows driven by hydraulic pressure or electronic or air pressure carries out blowing pulling shaping.
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| CN201410769739.9A CN104669590B (en) | 2014-12-15 | 2014-12-15 | A kind of plastic hollow product notes stretch blow shaped device |
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| CN201410769739.9A CN104669590B (en) | 2014-12-15 | 2014-12-15 | A kind of plastic hollow product notes stretch blow shaped device |
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| CN108127896A (en) * | 2017-12-08 | 2018-06-08 | 泉州精达皮塑五金工艺有限公司 | A kind of note of PET plastic blows manufacture craft and its product |
| CN108515685A (en) * | 2018-03-30 | 2018-09-11 | 安徽盛美金属科技有限公司 | A kind of blow mold with heating device |
| CN112721104A (en) * | 2021-01-07 | 2021-04-30 | 佛山市工正包装设备科技股份有限公司 | One-step injection-stretch-blow molding device and method for forming plastic container |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106493912A (en) * | 2016-11-30 | 2017-03-15 | 重庆禾众塑胶有限公司 | A kind of plastic bottle forming machine |
| CN106493912B (en) * | 2016-11-30 | 2019-02-22 | 重庆禾众塑胶有限公司 | A kind of plastic bottle molding machine |
| CN107471612A (en) * | 2017-08-15 | 2017-12-15 | 张家港市普信机械有限公司 | The automatic blow molding machine of compact high efficient |
| CN108127896A (en) * | 2017-12-08 | 2018-06-08 | 泉州精达皮塑五金工艺有限公司 | A kind of note of PET plastic blows manufacture craft and its product |
| CN114643694A (en) * | 2017-12-08 | 2022-06-21 | 泉州精达皮塑五金工艺有限公司 | Injection blow molding device and process for PET plastic and product thereof |
| CN108515685A (en) * | 2018-03-30 | 2018-09-11 | 安徽盛美金属科技有限公司 | A kind of blow mold with heating device |
| CN108515685B (en) * | 2018-03-30 | 2021-01-15 | 江苏圣宇高新材料有限责任公司 | Blow mold with heating device |
| CN112721104A (en) * | 2021-01-07 | 2021-04-30 | 佛山市工正包装设备科技股份有限公司 | One-step injection-stretch-blow molding device and method for forming plastic container |
| CN116945546A (en) * | 2023-09-20 | 2023-10-27 | 山东冠达医药科技有限公司 | Medicinal plastic packaging bottle blow molding device |
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