CN2258111Y - Full-automatic plastic hollow moulding apparatus - Google Patents

Abstract

The utility model relates to a full-automatic plastic hollow moulding machine, wherein, an injection mould closing mechanism adopts the united form of a cylinder and a post. A movable mould plate 12 is provided with a positioning hole 13. The injection-blowing molding or the injection drawing-blowing moulding can be carried out after an injection-blowing mould head and an injection drawing-blowing mould head are positioned on the positioning hole 13 as required. The utility model has the advantages that the full-automatic plastic hollow moulding machine can be used for injection molding, and has the performance of squeezing-blowing molding. The utility model can also achieve the injection-blowing moulding technology and the drawing-blowing moulding technology. The product variety can be changed easily on the same machine, and various accurate middle and small hollow articles can be produced. The adjustment is convenient and fast, the structure is simple and compact, and the energy fuel consumption is low.

Description

The full-automatic plastic blow moulding machine

The utility model relates to a kind of full-automatic plastic blow moulding machine.

Plastic hollow forming technique on the our times mainly contains injection, extrusion blow, squeezes stretch blow, annotates several main blow molding process such as blowing, annotate stretch blow.Various blow molding process respectively have its pluses and minuses.The injection of plastic hollow molding is the most ancient technology, because mould must have matched molds, thus can not the big hollow product of the young inner chamber of moulding, limitation is very big; Extrusion blow and its advantage of extrusion stretch blow moulding technology are: die cost is low, and easy at uniform machinery up conversion product variety, its shortcoming is: the bottleneck precision is low, poor sealing performance, waste material is many end to end, must carry out secondary operations to bottleneck during the blowing wide-mouth bottle, the expense height, quality is low; And annotate the advantage blow and to annotate the stretch blow moulding process be: goods precision height, the bottleneck good seal performance, the weldless crack, intensity is higher, does not have waste material end to end, its shortcoming is a complex process, die cost is high, and the user is difficult to change goods kind, the goods that only suitable single variety is produced in enormous quantities on uniform machinery, machine involves great expense, and existing unit price is all between hundreds thousand of and even up to a million dollars.The above-mentioned polytechnic equipment that each car of the particularly present world is produced all is the unit of simple function; Promptly be to distinguish with moulding process, individualism can not be compatible: promptly be only to do less change to die head or mould on same machine, just can produce the plastic hollow goods of various finenesses with different moulding process.

The purpose of this utility model just provides a kind ofly can comprehensively absorb injection, extrusion blow, squeeze stretch blow, annotate the advantage of blowing and annotate various blow molding process such as stretch blow, make a machine have multiple moulding function, can be used for injection moulding and have extrusion blow-molded performance again, can also realize annotating the full-automatic plastic blow moulding machine that blows and annotate the moulding process of stretch blow.

Solution of the present utility model is such: the injection clamping adopts the form of oil cylinder column unification, is provided with piston rod 15 at least in two root posts, and moving platen 12 is fastening with piston rod 15, makes moving platen 12 to move up and down under the drive of piston rod 15.Have locating hole 13 on moving platen 12, supporting notes blowing mould head, notes stretch blow die head can be located on locating hole 13, use bolted.

After adopting such scheme, when the utility model is realized injection moulding:

When taking off die head 1, blow mold 3 and clamping 4; can treat as the vertical plastic injector; be loaded on injection molding on the moving platen 12 and solid plate 16 of injection clamping this moment; finish the various functions of vertical injector; can produce the bottle cap of hollow container, finish the function of ancient injection moulding hollow product.

When this machine is realized when extrusion blow-molded: load onto hollow molding die head 1, blow-moulding mould-closing mechanism 4 and blow mold 3; " notes draw blow " moulding process (the acquired patent of the inventor that adopts the mode of first and second injection to utilize; the patent No.: ZL93247683.X) article of manufacture; can replace the extrusion blow hollow molding, and quality of item is better than extrusion blow-molded.

When this machine is realized injection blow moulding, on this motor-driven template, make benchmark with locating hole 13 and alignment pin 29, load onto and annotate the blowing mould head shown in the accompanying drawing 3, and feed the heat-conducting medium of setting up temperature through the mold temperature controllers from the barrel bolt 26 of this die head, the temperature that makes core 24 keep a certain suitable notes to blow, can annotate and blow hollow product, and notes blow moulding of the present utility model and mould are more simple compact, are easy to the conversion product variety.

When this machine is realized annotating the stretch blow moulding, die head 1 is pulled down, with locating hole 13 and post 30 location, garden, location, change the notes stretch blow die head shown in the accompanying drawing four, be equipped with the mold temperature controller, can finish the moulding process of annotating stretch blow, produce hollow product, realize annotating the function of stretch blow based on PET (polyester).

The utility model has the advantages that can be used for injection moulding has extrusion blow-molded performance again, can also realize annotating the moulding process that blows and annotate stretch blow, a machine has multiple moulding function, the plastic hollow goods precision height of being produced, the bottleneck good seal performance, die cost is low, not only is easy to change product variety on same machine, and can produce the middle-size and small-size plastic hollow goods of various top grades, easy to adjust, quick, simple and compact for structure, floor space is little, and energy resource consumption is low.

Accompanying drawing is embodiment of the present utility model:

Accompanying drawing 1 is a structural representation of the present utility model.

Accompanying drawing 2 is left views of accompanying drawing 1.

Accompanying drawing 3 is injection clamping structural representations.

Accompanying drawing 4 is injection blow moulding process schematic representations.

Accompanying drawing 5 is to annotate blowing mould header structure schematic diagram.

Accompanying drawing 6 is to annotate stretch blow die head schematic diagram.

Accompanying drawing 7 is robot manipulator structure schematic diagrames.

Accompanying drawing 8 is to annotate the structural representation that blows type embryo die 19.

Accompanying drawing 9 is hydraulic transmission principle figure.

The utility model includes die head 1, injection clamping 2, blow mold 3, blow-moulding mould-closing mechanism 4, hydraulic system 5, injecting systems 6, electrical system 7, manipulator 8, pneumatic system 9, fuselage 10, the oil cylinder 11 of loosing core; injection clamping on it is to adopt to be provided with the structure that piston rod 15 constitutes oil cylinder in the column; be provided with piston rod 15 at least two root posts; moving platen 12 is fastening with piston rod 15; solid plate 16 is fastened on outside the cylinder body, and mould 14 can be fastened on the moving platen 12 with nut.On moving platen, have locating hole 13, annotate the blowing mould head, annotate stretch blow die head location on locating hole 13 respectively, use bolted.

In the injection clamping, the piston rod of the oil cylinder 15 column guide rod effects of holding concurrently, when hydraulic oil when cavity of resorption enters oil cylinder; because solid plate 16 is fixed, thereby piston drive moving platen 12 moves up the epicoele oil-feed together with mould 14; then descending, finish the action of injection folding mould.If when changing other moulding process into, various die heads are installed on the moving platen 12 by means of locating hole 13, and plastic nozzle and head are positioned on the solid plate 16.

Annotating on the blowing mould head (shown in the accompanying drawing 5) has the alignment pin 29 that is fastened on locating hole 13, and big piston 21 is connected as a single entity with core 24, is provided with the valve rod 25 that is resetted by spring force in the core 24, and an end of valve rod 25 is communicated with compressed air B mouth; Valve piston 22 is fastening being connected as a single entity with valve rod 25.Taper Bottle-mouth die 27 1 ends and mandrel 44 snappings are backed down by the elastic force of spring 28, its outer sliding sleeve 23 that is with, barrel bolt 26 is the hollow barrel bolt, hole in the internal communication core 24 has groove on the sliding sleeve 23, and barrel bolt 26 is stuck in groove, in setting range, block sliding sleeve 23, drive sliding sleeve 23 motions, have at the two ends of big piston 21 hydraulic fluid port (C, D), have at the two ends of valve piston 22 the compressed air mouth (A, B).These notes blowing mould head adopts injection blow moulding technology to be: after the moving platen 12 of injection clamping is finished locked mode together with the downward matched moulds of notes blowing mould head; start injection bottle embryo (seeing shown in the accompanying drawing 4); the injection of bottle embryo finishes; die head together with the journey of dividing a word with a hyphen at the end of a line on the bottle embryo when enough blow molding die close and disturb; the descending composition of die head trace is blow molded into pattern and blow molding; blow mold is opened behind abundant cooling and shaping, subsequently pumping mode core and take out goods 18 automatically by manipulator.These notes blowing mould head operation principle is: this die head is used bolted by means of locating hole 13 and alignment pin 29; after the injection clamping is finished locked mode; be combined into bottle embryo injection mould by Bottle-mouth die 27 and core 24 and injection die this moment; compressed air enters and pushes open valve rod 25 from the A mouth during blow-molded article; thereby bottle embryo inflation finalized the design; compressed air in the goods of typing back is got rid of through former passage; but during exhaust, compressed air enters valve piston 22 from the B mouth and pushes valve rod 25 open slit deaeration successfully to the right.Hydraulic oil entered the right chamber of oil cylinder after blowing was finished from the C mouth, thereby big piston 21 drives core 24 left lateral, thereby finish the action of from goods, extracting core out, meanwhile when core loose core stroke during to certain distance because the effect of barrel bolt 26, driving sliding sleeve 23 also slides left, this moment, Bottle-mouth die 27 was because coupling mechanism force disappears, and Bottle-mouth die opened be convenient to the goods bottleneck to be threaded off by the elastic force of little spring 28 and took out.

Annotate on the stretch blow die head (shown in the accompanying drawing 6) garden, the location post 30 that is fastened on locating hole 13 is arranged; One end of piston 31 is connected with stretching bar 32, its cylinder body is connected as a single entity with the piston of bolt with the oil cylinder 11 of loosing core, end at piston 31 has hydraulic fluid port F, taper Bottle-mouth die 36 1 ends and mandrel 45 snappings, back down by spring 37 elastic force, its outer sliding sleeve 35 that is with, have groove on the sliding sleeve 35, barrel bolt 33 is stuck on the groove, in setting range, block sliding sleeve 35, drive sliding sleeve 35 motions, barrel bolt 33 is the hollow barrel bolt, hole in the internal communication core 34, the operation principle of these notes stretch blow die head is: this die head by means of locating hole 13 and garden, location post 30 location and installation on moving platen 12, after the injection-type embryo is finished, temperature adjustment before type embryo temperature stretches by means of the temperature of the temperature control medium that enters from the D mouth, hydraulic oil stretches out to the right from the piston 31 left ends bar 32 that promotes to stretch subsequently, thereby the type embryo is carried out longitudinal stretching, when longitudinal stretching is ended, compressed air enters from the E mouth type embryo mould is finalized the design to inflation, promptly having finished horizontal load stretches, biaxial tension finishes, entering hydraulic oil from the F mouth regains stretching bar 32 left, also, the oil cylinder 11 right chamber oil-feeds of loosing core are moved to the left the action of extracting core out simultaneously because having driven core 34, when core 34 moves left to certain distance because the effect of barrel bolt 33, driving sliding sleeve 35 also is moved to the left, this moment, Bottle-mouth die 36 was because coupling mechanism force disappears, and Bottle-mouth die opened be convenient to the goods bottleneck to be threaded off by the elastic force of little spring 37 and took out.

The extracting of goods 18 is to be finished by manipulator, manipulator upper piston rod 38 is connected with the cylinder body of piston 40,42 driving lever 41 is hinged in piston 40 and the parallel-crank mechanism, paw 43 is fixed on the parallel four limit machine mechanisms 42, be provided with some bars 39 on piston 40 cylinder bodies, guide rod 39 inserts in the guide block and play the guiding role.The operation principle of manipulator is: after goods 18 blowings are finished, compressed air is from piston 38 left end air inlets, piston 38 is driven lose heart cylinder and parallel-crank mechanism 42 to right lateral, the right lateral cylinder right-hand member air inlet of losing heart that ends, make piston 40 parallel (accompanying drawing 7 center lines below figure) thus driving driving lever 41 stirs parallel four limit row mechanisms 42 and paw 43 is closed disturb the extracting goods, the air inlet of long subsequently cylinder right-hand member, piston 38 moves to left outside goods 18 knockout machines, the cylinder left end air inlet (see accompanying drawing 7 center lines top) of then losing heart, piston 40 moves to right and unclamps paw 43 by driving lever 41 and parallel-crank mechanism 42, thereby goods 18 are put down.

Notes blow type embryo die 19 and adopt the fin air-cooled structure, the fin 18 that has some roads to protrude on the die 19, thereby make cooling system simple, exempted from but the expensive device of water temperature or oily temperature control, reduced equipment cost, the size of suitably regulating cooling air quantity can be controlled the temperature of die 19, and the conversion ratio of temperature is softer when simultaneously air-cooled, reaches the simple purpose that is suitable for.

In the present embodiment, the injection clamping is to adopt four root post oil cylinders, has two locating holes 13 on the moving platen 12, and mechanism's hand getting is with one.

The Hydraulic Power Transmission System of present embodiment adopts advanced pressure proportional control and flow proportional control and band reponse system, make each action degree that circulates automatically can preset different pressure and speed, realize the requirement that each are different, motion does not simultaneously steadily have bump, the repeatable accuracy height is also saved energy consumption widely.

In the accompanying drawing, the 17th, blow mold.

Claims (9)

1, a kind of full-automatic plastic blow moulding machine includes fuselage 10, hydraulic system 5, injecting systems 6, electrical system 7, pneumatic system 9, loose core oil cylinder 11 and manipulator 8, it is characterized in that:

1) the injection clamping is to adopt to be provided with the structure that piston rod 15 constitutes oil cylinder in the column, is provided with piston rod 15 at least in two root posts, and moving platen 12 is fastening with piston rod 15.

2) have locating hole 13 on the moving platen 12, annotate the blowing mould head, annotate stretch blow die head location on locating hole 13 respectively, use bolted.

2, full-automatic plastic blow moulding machine according to claim 1, it is characterized in that on the described notes blowing mould head alignment pin 29 that is fastened on locating hole 13 being arranged, big piston 21 is connected as a single entity with core 24, core 24 is provided with the valve rod 25 that is resetted by spring force, and an end of valve rod 25 is communicated with compressed air B mouth; Taper Bottle-mouth die 27 1 ends and mandrel 20 snappings are socketed with sliding sleeve 23 outside it, and barrel bolt 26 can block sliding sleeve 23 in setting range.

3, full-automatic plastic blow moulding machine according to claim 2 is characterized in that having groove on the sliding sleeve 23, and barrel bolt 26 is to be stuck in the groove.

4, full-automatic plastic blow moulding machine according to claim 3 is characterized in that barrel bolt 26 is the hollow barrel bolt, the hole in the internal communication core 24, and heat-conducting medium closes core in barrel bolt 26.

5, full-automatic plastic blow moulding machine according to claim 1 is characterized in that garden, the location post 30 that is fastened on locating hole 13 is arranged on the described notes stretch blow die head; One end of piston 31 is connected with stretching bar 32, and its cylinder body is connected as a single entity with bolt with the piston of the oil cylinder 11 of loosing core; Taper Bottle-mouth die 36 1 ends and mandrel 45 snappings are socketed with sliding sleeve 35 outside it, and barrel bolt 33 can block sliding sleeve 35 in setting range, drive sliding sleeve 35 motions.

6, full-automatic plastic blow moulding machine according to claim 5 is characterized in that barrel bolt 33 is the hollow barrel bolt, the hole in the internal communication core 34, and heat-conducting medium is with the core 34 of making a gift to someone in the barrel bolt 33.

7, according to claim 1,2,5 described full-automatic plastic blow moulding machines, it is characterized in that manipulator upper piston rod 38 is connected with the cylinder body of piston 40, piston 40 is hinged with the driving lever 42 of parallel-crank mechanism 42, and hand is grabbed 43 and is fixed on the parallel-crank mechanism 42.

8, full-automatic plastic blow moulding machine according to claim 7 is characterized in that establishing on piston 40 cylinder bodies guide rod 39 in the some insertion guide blocks.

9, full-automatic plastic blow moulding machine according to claim 1 is characterized in that annotating and blows type embryo die 19 employing tab style air-cooled structures, and the fin 18 of some roads protrusion is arranged on the die 19.

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