CN1310804C - Wide mouth container bottle, method and device for producing wide mouth container bottle - Google Patents
Wide mouth container bottle, method and device for producing wide mouth container bottle Download PDFInfo
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- CN1310804C CN1310804C CNB2004100268488A CN200410026848A CN1310804C CN 1310804 C CN1310804 C CN 1310804C CN B2004100268488 A CNB2004100268488 A CN B2004100268488A CN 200410026848 A CN200410026848 A CN 200410026848A CN 1310804 C CN1310804 C CN 1310804C
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Abstract
The present invention relates to a bottle container with a wide bottle opening, which orderly comprises a bottle bottom, a bottle body, a bottleneck and the bottle opening from the bottom to the top, wherein the bottle bottom is used for supporting the bottle container; the bottle body is used as a main containing part; the bottleneck is a transition section used for connecting the bottle body with the bottle opening; the bottle bottom, the bottle body and the bottleneck of the bottle container are approximately in a structure with equal wall thickness; the bottle opening of the bottle container has a curling structure; the curling structure is formed by downwards rolling a bottle opening flange of the bottle container. The bottle container with the wide bottle opening has the advantages of high strength of a bottle opening structure, good sealing performance, difficult contraction, difficult torsional deformation, low processing accuracy requirement and low production defective index.
Description
Technical field
The present invention relates to a kind of manufacture method of container bottle, relating in particular to a kind of is the manufacture method of the container bottle of main material with pet resin (to call PET in the following text).
Background technology
PET material and other crystalline plastic difference be it have as clear as crystal, perspective rate not second to glass, be difficult for advantages such as broken and in light weight, thereby be widely used in making container bottle.0.7 the glass bottle weight of litre is greater than the beverage of its splendid attire.On the contrary, with the beverage of 1 liter of dress of the bottled Sheng of PET, its PET bottle accounts for total weight and is less than in the 2-5%.Use the PET bottle when transportation, loss and working expenses can reduce.
Before the PET bottle was unpopular, plastic bottles all was that extrusion blow is come out.Plastics are extruded from die head after the friction force of heating and screw rod rotation becomes fusion, become cylindric.Mould closes, and inject air from neck and cylinder is splashed rise, be close to die wall and cooling and shaping.Just take out bottle after the die sinking.The bottle that adopts the method for extrusion blow to produce, the bottleneck unfairness all needs to scrape deflashing usually and could guarantee to screw on behind the bottle cap water-tight.Extrusion blow also produces more leftover pieces, secondary processing to remove and Recycling.Adopt the method to produce plastic bottles, advantage comprises that investment in production equipment is low, and the speed of production height adds handle easily, the variation of bottle type shape, and bottle weight can be adjusted on a large scale, and the extrusion blow mould is cheap, and time of delivery is short.The handle of extrusion blow bottle is a hollow.
PET bottle popular job operation at present is an injection stretch blow moulding.Earlier outpour bottle base with injection machine, it mainly acts on is to produce smooth bottleneck.Before bottle base is uncolled or after the cooling again heating make bottle base softening, with the bottle base longitudinal stretching and blow (cross directional stretch), make biaxial tension, strengthen outside the bottle, wall thickness is reduced, so than extrusion blow saving materials.
The shortcoming of annotating stretch blow is to be difficult for adding handle, the injection mould costliness, and also time of delivery is long.The weight of bottle is equivalent to the weight of bottle base, and the latter can not adjust basically.The method that the PET bottle adds handle is that the back-off handle that contains of injection molded is in advance put in the bottle blowing mould, and the bottle wall is wrapping handle back-off place during bottle blowing.
In a machine, finish notes, draw, blow the technology general designation single stage method of operation.Single stage method is to about 110 ℃ at bottle base injection moulding after cooling, directly change secondary temperature elevation over to, do the stretch blow action and (need not be cooled to the die sinking temperature, also need not heat from room temperature), without staff, reduce and pollute, benefit is power saving (saves and preheat), capacity rating height, product diaphaneity height, bottle base are not easy damage.Two-step method will be annotated and stretch blow separates, and timesharing is carried out on two machines.The first step outpours bottle base with injection machine.After the bottle base heating of second step with room temperature, stretch blow becomes bottle, is to finish on another machine " heating, stretch blow moulding ".The equipment in second step can be selected only to buy by filling bottle factory, will buy the bottle base blow molding of returning.So just, can reduce investment (talent and equipment).The volume of bottle base conveniently transports and stores (18 tons of automobile carrier can be transported and be adorned 830,000 2 thousand) much smaller than bottle.The bottle base of producing dull season can be blown out bottle in the busy season.
The PET bottle that early stage people produce mostly is the beverage bottle of slot greatly, along with the advantage of PET bottle manifests day by day, the PET bottle need be used for splendid attire beverage other article in addition, such as: the article that solid such as jam, honey, pickles, baby food or solid and liquid mix, then require the PET bottle design to become wide mouthful structure, as shown in Figure 1, be the wide mouthful PET bottle of prior art.Wide mouthful of PET bottle manufacture method is similar with slot PET bottle in the prior art, still can adopt the stretch blow method of annotating.
For the producer, adopt and annotate stretch blow method production PET bottle, if not only produce wide mouthed bottle but also produce jug, so, and no matter adopt single stage method or two-step method, all necessary injection moulding bottle outlet embryo in advance.As shown in Figure 3, bottle embryo 4 shapes of the bottle embryo 3 of wide mouthed bottle and jug are different, the bottle embryo injection mould that two covers of must purchasing are different.Equally, also the difference because of bottleneck is different for blow mold.If produce the PET bottle of different capabilities and diameter, because the difference of bottleneck, number of molds will be doubled.Simultaneously, adopt notes stretch blow method to produce wide mouthful of PET bottle, the exigent working accuracy of existing bottleneck structure, apparatus expensive.And add the man-hour bottleneck and easily produce and shrink and torsional deflection, the reject rate height causes waste.
Summary of the invention
In order to overcome the deficiency of existing P ET container bottle manufacture method, the objective of the invention is to: a kind of method of utilizing the jug embryo to produce wide mouthful of container bottle is provided, the wide mouthful of container bottle of producing, its bottleneck structure intensity height, good seal performance, be difficult for producing and shrink and torsional deflection, requirement on machining accuracy can reduce, and produces reject rate and reduces, simultaneously for wide mouthful of container bottle and slot container bottle, overwhelming majority mould can be general, greatly reduces productive costs.
The technical solution adopted for the present invention to solve the technical problems is:
A kind of method of making wide mouthful of container bottle, described wide mouthful of container bottle comprises successively up that by the bottom bottle end that is used to support described container bottle, body, bottleneck and the bottleneck of the main holding portion of conduct constitute, described bottleneck is for connecting the transition phase of body and bottleneck, the bottle end, the body of described container bottle and bottleneck such as are at the structure of wall thickness, the bottleneck of described container bottle has bead structure, described bead structure be described container bottle the bottleneck flange down turnup form;
Comprise following processing step:
1) drying of PET plastics
Injection machine sucks hopper top with the PET plastics, and up blow from feed hopper bottom the indoor wet air heating back that is dried behind the device, with the dry certain hour of PET plastics;
2) injection moulding jug embryo
The PET plastics of drying are injected special-purpose injection machine, injection moulding jug embryo;
3) oriented bottle embryo forms the transition bottle with the blowing of bottle embryo
Bottle embryo with cooling, deliver to thermoplastic in the high temperature furnace, the neck of bottle embryo is clamped in transition bottle forming die accent, the hypomere of jug embryo stretches into shaping mold cavity, blow moulding machine is blown into high temperature and high pressure gas to the bottle embryo, the bottle embryo is softening gradually and expand, and fits like a glove to the shape of its shape and transition bottle forming die inner chamber, and cooling and shaping becomes the transition bottle;
4) shear the transition bottle
The transition bottle is fixed on the belt conveyor, the cutting edge of a knife or a sword jet cutting machine is positioned at the position contour with line of cut, transition bottle inch forward, the cutting edge of a knife or a sword jet cutting machine is cut to two sections with the transition bottle;
5) bottleneck crimping
Draw mould and insert container finish, heating makes container finish softening, and the container finish after softening is along the shape bending of drawing the mould pilot arc, and secondary mould continues the bending of guiding container finish, the moulding of container finish turnup, cooled containers bottleneck.
The invention has the beneficial effects as follows that the bottleneck of container bottle has bead structure, guarantee that the intensity and the sealing property of bottleneck reaches requirement.Wide mouthful container bottle of the present invention is common jug to be sheared back bottleneck crimping form, and need not greatly reduce productive costs and cycle for wide mouthful of container bottle purchase separately bottle an embryo injection mould and a blow mold.
Description of drawings
The present invention is further described below in conjunction with drawings and Examples.
Fig. 1 is the structural representation of wide mouthful of container bottle in the prior art;
Fig. 2 is the structural representation of the present invention's wide mouthful container bottle of processing;
Fig. 3 is the structural representation of wide mouthful container bottle bottle embryo and PET slot container bottle bottle embryo in the prior art;
Fig. 4 is the local structure scheme drawing of wide mouthful of container bottle of the present invention's MULTILAYER COMPOSITE of processing;
Fig. 5 is the local structure scheme drawing of the defective that wide mouthful of container bottle of MULTILAYER COMPOSITE easily produces in the prior art;
Fig. 6 is the transfer method and the equipment scheme drawing of bottle embryo in the manufacture method of the wide mouthful container bottle of the present invention;
Fig. 7 is the transfer method of bottle embryo in the manufacture method of the wide mouthful container bottle of the present invention shown in Figure 6 and the upward view of equipment;
Fig. 8 is transition bottle course of processing signal in the manufacture method of the wide mouthful container bottle of the present invention;
Fig. 9 is the structural representation of transition bottle in the manufacture method of the wide mouthful container bottle of the present invention;
Figure 10 is the method and apparatus scheme drawing that the transition bottle is sheared in the manufacture method of the wide mouthful container bottle of the present invention;
Figure 11 is a method and apparatus scheme drawing in the bottleneck crimping process in the manufacture method of the wide mouthful container bottle of the present invention;
Figure 12 is the method and apparatus scheme drawing when bottleneck crimping is finished in the manufacture method of the wide mouthful container bottle of the present invention.
The explanation of reference numeral:
Container bottle-1, wide mouthful of laminated vessel bottle-2, wide mouthful of laminated vessel bottle skin-21, wide mouthful of laminated vessel bottle interlayer-22, wide mouthful of laminated vessel bottle internal layer-23, wide mouthed bottle embryo-3, jug embryo-4, at the bottom of the container bottle-11, container body-12, container bottle neck-13, container finish-14, container bead structure-15, clip-8, transition bottle forming die-9, cooling-water duct-91, blow moulding machine-7, transition bottle-5, at the bottom of the transition bottle bottle-51, transition bottle body-52, transition bottle bottleneck-53, transition bottle bottleneck-54, transition bottle contraction section-55, line of cut-56, cutting edge of a knife or a sword jet cutting machine-6, draw mould-10, secondary mould-11, draw mould location periphery-103, draw mould pilot arc-104, draw mould electrical heating elements-102, draw mould cooling-water duct-101, secondary mould pilot arc-113, secondary mould location periphery-114, secondary mould electrical heating elements-111, secondary mould cooling-water duct-112.
The specific embodiment
As shown in Figure 2, the present invention relates to a kind of container bottle 1, at the bottom of up comprising successively bottle by the bottom 11, body 12, bottleneck 13 and bottleneck 14 constitute.Described container bottle 1 is a main material with pet resin (to call PET in the following text), is a kind of PET bottle; Described bottle is used to support described PET bottle in the end 11, can be for at the bottom of whole the PET bottle all-in-one-piece monolayer bottles, and also can be at the bottom of other adds the double bottle of base; Described body 12 is the main portion of PET bottle, can be cylindrical structural, also can adopt other shape arbitrarily; Described bottleneck 13 is for connecting the transition phase of body 12 and bottleneck 14, sealing for the ease of bottle, the diameter of described bottleneck 13 is less than or equal to the diameter of described body 12 usually, same sealing for the ease of bottle, the periphery of described bottleneck 13 can be designed to threaded structure, can twist with bottle cap and close, also can be designed to not threaded structure, fasten with bottle cap; The bottle end 11, the body 12 of described container bottle 1 and bottleneck such as are roughly at the structure of wall thickness.
Inventive point of the present invention is that the bottleneck 14 of described container bottle 1 has bead structure 15, described bead structure 15 can for by the bottleneck top flange to the inboard turnup of bottle, also can for by the bottleneck top flange to bottle outside turnup.Container bottle of the present invention can adopt different crimping modes, and the curvature of crimping is according to circumstances also different.
Especially, described container bottle 1 is a kind of wide mouthful of container bottle.
The PET bottled drink has an amount of oxygen infiltration and carbon dioxide and oozes out under the leak free situation, so the common PET bottle can not be used for containing a year beer-like beverage.Oxygen infiltrates the composition that can destroy the wine body, changes the former local flavor and the purity of wine body.Generally, beer maker requires bottle can guarantee that beer has the shelf storage period more than 6 months.Especially, in order to make the PET bottle have barrier, the bottle of described container bottle 1 has finish coat, described finish coat can be plasma coating, diamond type carbon coating, amorphous carbon coating, barrier silica-gel coating and epoxy one amine coating etc., described finish coat can be positioned at the outside face of bottle, also can be positioned at the inside face of bottle.
Especially, in order to improve the barrier of PET bottle, the bottle of described container bottle 1 also can adopt the MULTILAYER COMPOSITE technology, becomes multiple-structure.Be PEN (PolyEthylene Naphthalate), nylon and EVOH to oxygen and melting property of carbon dioxide resistance strong than PET, the method for available interlayer is clipped in it between skin and the internal layer PET material.For the pet container bottle of the multiple-structure that adopts prior art to produce; wide mouthed bottle particularly; material difference between bottle mouth position layer and the layer; amalgamation is poor; stickup is not easy closely; as shown in Figure 5; usually can produce the phenomenon of separation; adopt bottleneck structure of the present invention can solve this problem well: as shown in Figure 4; add man-hour with bottleneck multilayer bottle wall turnup together; not only increased the adherence force between layer and the layer, and the skin 21 of the PET of bead structure place bottle wall is wrapped in its inside with interlayer 22 and internal layer 23, limited the phenomenon of scattering between layer and the layer and taken place.
Below be the detailed description of the manufacture method of wide mouthful of container bottle of the present invention:
Step 1: the drying of PET plastics
PET is absorptive, and it absorbs airborne moisture content, if moisture content to discharge before injection moulding, and plastics meeting hydrolysis, the intensity of product can be substandard, and the outward appearance of product can be not good enough, becomes waste product.
Microscopically see absorptive plastics can realize their particle all be abound with capillaceous.In case moisture content sucks in the capillary tub, can only water evaporates be come out with heating.Here, heating-up temperature, time of heat and the source/processing that adds hot air play key role at the residual water content that influences plastics.The residual water content of PET plastics will be under 50ppm (calculating by weight).The absolute temperature that adds hot air this moment is-40 ℃ dew point.
The baking material method of the manufacture method of pet container bottle of the present invention uses injection machine that the PET plastics are sucked hopper top, and because of the PET plastics are exposed to when depositing in the indoor wet air, the PET plastics have certain hygroscopic character, so certain moisture is just arranged when depositing.Wet air is dried and is heated to 160 ℃ behind the device and up blows from feed hopper bottom, with the dry certain hour of PET plastics; After to be dried, just begin injection moulding.
The baking material method of the manufacture method of pet container bottle of the present invention can also be used baker, and the principle of work of baker is identical with hopper dryer, and just plastics are placed on the flat plate, have increased the area that contacts with air, have improved drying effect.After 160 ℃ of dryings, the plastics of plate are toppled over the feeder hopper dryer use.
The baking material method of the manufacture method of pet container bottle of the present invention can also be used the removal moisture drying device, with the dry-air blast Recycling.Before Recycling, remove airborne humidity with dehumidizier.Dehumidizier continues to remove the moisture content in the circulating air by independently hot blast regeneration.The removal moisture drying function reaches the dry requirement of PET material.
Step 2: the PET plastics of drying are injected special-purpose injection machine, processing bottle embryo:
Make wide mouthful of pet container bottle of the present invention, still adopt the at first way of injection moulding bottle outlet embryo.Herein, what we selected for use is as scheming bottle embryo 4 shown in Figure 4, as long as promptly inject the jug embryo, need not make the wide mouthed bottle embryo for making wide mouthful of pet container bottle specially.Described bottle embryo 4 is roughly test tube shape structure, and the neck periphery can be provided with or not be provided with outside thread as required.The weight of bottle embryo 4 is substantially equal to the weight of transition bottle.
The production facilities that this step needs is: air drying plant, injection machine, preform mould, fritting device and pressurizer.
Bottle base injection moulding production efficiency is arranged by hardening time.Hardening time be proportional to wall thickness square, but be inversely proportional to the mould temperature temperature difference.Mould temperature calculation on Temperature Difference formula is: the mould temperature temperature difference=melt temperature-Wen tool temperature.
If 260 ℃ of melt temperatures, 30 ℃ of water tower water water temperatures, 6 ℃ of frozen water water temperatures shorten hardening time 1-(260-6)/(260-30)=10% with frozen water cooling preform mould than water tower water cooling
With 6 ℃ of frozen water cooling dies, can condensation at general weather bed die.Dew can be left over vestige on the surface of bottle base.If the mould ambient air is the dry air of 3 ℃ of dew points, mould is not just sweat.In order to solve the problem of mould condensation, can use the air drying plant of the dry-air blast machine conduct of electric refrigerator and air conditioner and special use.Use air conditioner or dry-air blast machine, the clamping apparatus of injection machine will seal, and reduces the loss of dry-air blast.
The runner that the preform mould of multi-cavity adopts is the hot plate design.In the hot plate design, a heating zone and an electroheat pair are shared in per two chambeies, can leave at the bottom of the bottle base to be no more than the long mouth of a river of 5mm, and after shutting down a period of time, running channel have blockage phenomenon, the cleaning of taking time.Hot plate design low cost is welcome by domestic users.PET preform mould of the present invention can also adopt the design of needle valve hot flow path.All there are independently heating and temperature detection in each chamber, does not stay the mouth of a river at the bottom of the bottle base, does not inject hour hands valve closure running channel, so running channel can not stop up, but cost is higher.
The chamber number of preform mould is: the emperor person of bottle base is the bottle base of the water dispenser bottle of 5 gallons (19 liters), and weight is not waited by 650g to 750g.The disposable 5 gallon bottle weight of one usefulness all have 400g heavy.So mould is a chamber, and adopt the cold runner design.The bottle of 3 gallons (12 liters), bottle base weight 300g to 520g.Mould adopts hot plate/hot flow path design with two chambeies.Other chamber number has 4,6, and 8,12,16,24,32,48,60,72,96 and 144.In order to enhance productivity, four column spaces, template space and the injection moulding weight with injection machine reaches the highest chamber number to the greatest extent.It is microscler that preform mould is, and promptly length value is bigger than width value.
The thick-wall bottle base of injection moulding, hardening time is being arranged period.Next is will be with the fusion time of a large amount of plastics plasticizings.Under the condition of frozen water cooling, hardening time and wall thickness have following relation.
tc＝1.2?t2
T=bottle base wall thickness, mm
The tc=hardening time, s
Here, hardening time is defined as the dwell time.1 liter mineral water bottle bottle base wall thickness 3mm, hardening time just accounted for 10.8 seconds.5 gallon bottle bottle base wall thickness 8mm, hardening time is 76.8 seconds.
Use the fritting device almost the PET plastics of drying can be plastified in whole period.The fritting device is only done plasticizing, and injection is responsible for by independent plunger.The fusion that has plastified is accumulated in the front of injection piston.It is not reinforced (to contain pressurize) when just injecting.Pressurizer makes fritting device or reciprocating screw reinforced in the tediously long dwell time.In hardening time, plastics constantly shrink, and contracted space is filled up in pressurize, make bottle base full, can not sink.
Step 3: the oriented bottle embryo, blowing forms the transition bottle:
Shown in Fig. 6,7, the bottle embryo with cooling clamps with clip 8, delivers to and is heated to 120-150 degree centigrade in the high temperature furnace, near the sinter point point of PET material, makes bottle embryo softening.Described clip 8 has the breach of U shape, can be used to clamp the bottle embryo.
As shown in Figure 8, the neck of jug embryo is clamped in transition bottle forming die 9 accents, the hypomere of jug embryo stretches in forming die 9 chambeies.9 fens left and right sides of transition bottle forming die two parts constitute, usually its cavity shape is a symmetry, two parts of transition bottle forming die be in the same place, blow moulding machine 7 is blown into high-temperature gas to the bottle embryo, the softening gradually and expansion of bottle embryo, until contacting with transition bottle forming die inner chamber, the shape of its shape and transition bottle forming die inner chamber fits like a glove.At this moment, the transition bottle forms, is furnished with many group cooling-water ducts 91 in transition bottle forming die inner chamber periphery, injects cooling water expansion tank immediately, and the transition bottle promptly hardens once cooling.Transition bottle forming die 9 is opened, and the transition bottle drops out.
The structure of described transition bottle as shown in Figure 9, a kind of a kind of intermediate product---transition bottle of producing for process vessel bottle 15 of the present invention, at the bottom of described transition bottle 5 is up comprised bottle successively by the bottom 51, body 52, bottleneck 53 and bottleneck 54, described transition bottle 5 also comprises contraction section 55.Described transition bottle 5 is a main material with pet resin (to call PET in the following text), weight and bottle embryo are about equally, described bottle is used to support described transition bottle 5 in the end 51, can be for at the bottom of whole the transition bottle 5 all-in-one-piece monolayer bottles, and also can be at the bottom of other adds the double bottle of base; Described body 52 is the main portion of transition bottle 5, can be cylindrical structural, also can adopt other shape arbitrarily; Described bottleneck 53 is for connecting the transition phase of body 52 and bottleneck 54, and the periphery of described bottleneck 53 can be designed to threaded structure, also can be designed to not threaded structure; The bottle end 51, the body 52 of described transition bottle 5 and bottleneck 53 such as are roughly at the structure of wall thickness.Especially, described bottleneck 54 is a slot.Described contraction section 55 is positioned at body 52 tops, the below of bottleneck 53, decide according to the capacity and the shape of the wide mouthful of pet container bottle that need are made its position, the diameter of described contraction section 55 is consistent with the bottleneck diameter of wide mouthful of pet container bottle, the periphery of described contraction section 55 can be designed to threaded structure, also can be designed to not threaded structure.
For the contraction section 55 that forms the transition bottle, the spy has increased the structure division that matches with contraction section 55 in the inner chamber of forming die 9, for example, can be ring shaped thread, also can be cylinder shape inner wall etc.
Especially, in this step, can use original useless bottle to substitute the bottle embryo.Usually, it is disposable that people use the pet container bottle to be, and pet container bottle manufacturer can carry out disinfection after reclaiming the used slot pet container of people bottle, and repeated usage also can become the slot pet container bottle remanufacturing that reclaims wide mouthful of pet container bottle.Method is: with diameter with highly all less than the slot pet container bottle of transition bottle forming die, be placed in the transition bottle shaping mold cavity, once more it heated, blows and draw, can produce new transition bottle.
Step 4: shear the transition bottle
As shown in figure 10, transition bottle 5 is fixed on the belt conveyor, cutting edge of a knife or a sword jet cutting machine 6 is positioned at the position contour with line of cut 56, in the process along with transition bottle 5 inch forwards, cutting edge of a knife or a sword jet cutting machine 6 is cut to two sections with transition bottle 5.
Also transition bottle 5 can be maintained static, cutting edge of a knife or a sword jet cutting machine 6 rotates or advances its cutting.
The part that transition bottle 5 tops are cut off can be used as raw material, next recycling.
Step 5: bottleneck crimping
As shown in figure 11, the equipment of bottleneck crimping is comprised draw mould 10 and secondary mould 11.Described structure of drawing mould 10 can divide three sections to be described: hypomere is the head that draws mould 10, its diameter is smaller or equal to wide mouthful of container bottle neck internal diameter, the head that draws mould 10 stretches in the wide mouthful of container bottle, and its periphery 103 plays and prevents that wide mouthful of container bottle neck from shrinking and the effect of distortion; The stage casing diameter that draws mould 10 is greater than the head diameter that draws mould 10, and there is pilot arc 104 in the place in that stage casing and hypomere have a common boundary, the curvature of described pilot arc 104 and equate with the curvature and the radius of radius container finish upper semisection crimping; Epimere is in order to draw the fixing of mould 10 and to move and the physical construction of setting.Described middle part of drawing mould 10 is provided with electrical heating elements 102, and described electrical heating elements 102 comprises electro heat probe and electrical heating wire composition, container finish can be heated to sinter point; Described electrical heating elements 102 peripheries are provided with many group cooling-water ducts equally.Secondary mould 11 also comprises another section pilot arc 113 and location periphery 114, location periphery 114 plays and draws guided mode and move, control the curvature of bottleneck crimping and the effect of radius, the curvature of pilot arc 113 and equate with the curvature and the radius of another section of radius container finish crimping; Be provided with the electrical heating elements 111 that comprises that electro heat probe and electrical heating wire are formed equally near outside the described location periphery 114, described electrical heating elements 111 peripheries also are provided with many group cooling-water ducts.
When drawing mould 10 after the direction of arrow is as shown in figure 11 inserted container finish, electrical heating elements 102 begins heating, container finish is softening, draws mould 10 and continues to move along as shown in figure 11 the direction of arrow, and the container finish after softening begins the shape bending along pilot arc 104.Secondary mould 11 is static, electrical heating elements 111 heating, and along with the continuation of drawing mould is moved, pilot arc 113 continues the bending of guiding container finish, and the scope of described electrical heating elements 102 and 111 heating is the zone of container finish and the about 40mm of bottleneck.Until state as shown in figure 12, draw mould 10 and stop to move, the moulding of container finish crimping; Inject cooling water expansion tank, container finish promptly hardens once cooling.Remove and draw mould 10 and secondary mould 11, finish the container bottle manufacturing process.
When described bead structure 15 is by the bottleneck top during to the inboard turnup of bottle, only be that position, curvature and the radius that draws the pilot arc 113 of the pilot arc 104 of mould 10 and secondary mould 11 changes thereupon, described other structures and the such scheme that draws mould 10 and secondary mould 11 is roughly the same.
Claims (5)
1, a kind of method of making wide mouthful of container bottle, described wide mouthful of container bottle comprises successively up that by the bottom bottle end that is used to support described container bottle, body, bottleneck and the bottleneck of the main holding portion of conduct constitute, described bottleneck is for connecting the transition phase of body and bottleneck, the bottle end, the body of described container bottle and bottleneck such as are at the structure of wall thickness, the bottleneck of described container bottle has bead structure, described bead structure be described container bottle the bottleneck flange down turnup form; It is characterized in that:
Comprise following processing step:
1) drying of PET plastics
Injection machine sucks hopper top with the PET plastics, and up blow from feed hopper bottom the indoor wet air heating back that is dried behind the device, with the dry certain hour of PET plastics;
2) injection moulding jug embryo
The PET plastics of drying are injected special-purpose injection machine, injection moulding jug embryo;
3) oriented bottle embryo forms the transition bottle with the blowing of bottle embryo
Bottle embryo with cooling, deliver to thermoplastic in the high temperature furnace, the neck of bottle embryo is clamped in transition bottle forming die accent, the hypomere of jug embryo stretches into shaping mold cavity, blow moulding machine is blown into high-temperature gas to the bottle embryo, the bottle embryo is softening gradually and expand, and fits like a glove the transition bottle that cooling forms to the shape of its shape and transition bottle forming die inner chamber;
4) shear the transition bottle
The transition bottle is fixed on the belt conveyor, the cutting edge of a knife or a sword jet cutting machine is positioned at the position contour with line of cut, transition bottle inch forward, the cutting edge of a knife or a sword jet cutting machine is cut to two sections with the transition bottle;
5) bottleneck crimping
Draw mould and insert container finish, heating makes container finish softening, and the container finish after softening is along the shape bending of pilot arc, and secondary mould continues the bending of guiding container finish, the moulding of container finish turnup, cooled containers bottleneck.
2, the method of wide mouthful of container bottle of manufacturing according to claim 1, it is characterized in that: the oriented bottle embryo, when the blowing of bottle embryo is formed the transition bottle, bottle embryo with cooling, clamp with clip, deliver in the high temperature furnace and heat, make bottle embryo softening, the neck of bottle embryo is clamped in transition bottle forming die accent, the hypomere of jug embryo stretches into shaping mold cavity, two parts of forming die be in the same place, blow moulding machine is blown into high-temperature gas to the bottle embryo, the bottle embryo is softening gradually and expand, contact with transition bottle forming die inner chamber, the shape of its shape and transition bottle inner chamber fits like a glove, and is furnished with many group cooling-water ducts in transition bottle forming die inner chamber periphery, injects cooling water expansion tank immediately, the transition bottle is once cooling, promptly harden, transition bottle forming die is opened, and the transition bottle drops out.
3, the method for wide mouthful of container bottle of manufacturing according to claim 1 and 2 is characterized in that: described bottle embryo is the jug embryo, is test tube shape structure, and the neck periphery is provided with outside thread, and the weight of bottle embryo equals the weight of transition bottle.
4, the method for wide mouthful of container bottle of manufacturing according to claim 1 and 2, it is characterized in that: at the bottom of described transition bottle is up comprised bottle successively by the bottom, body, bottleneck and bottleneck, described transition bottle also comprises contraction section, described transition bottle bottleneck is a slot, described contraction section is positioned at the body top, the below of bottleneck, decide according to the capacity and the shape of the wide mouthful of pet container bottle that need are made its position, and the diameter of described contraction section is consistent with the bottleneck diameter of wide mouthful of pet container bottle.
5, the method for wide mouthful of container bottle of manufacturing according to claim 1, it is characterized in that: use original useless bottle to substitute the bottle embryo, with diameter with highly all less than the slot pet container bottle of transition bottle forming die, be placed in the transition bottle shaping mold cavity, once more it is heated, blows and draw, produce new transition bottle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100268488A CN1310804C (en) | 2004-04-13 | 2004-04-13 | Wide mouth container bottle, method and device for producing wide mouth container bottle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100268488A CN1310804C (en) | 2004-04-13 | 2004-04-13 | Wide mouth container bottle, method and device for producing wide mouth container bottle |
Publications (2)
| Publication Number | Publication Date |
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| CN1683212A CN1683212A (en) | 2005-10-19 |
| CN1310804C true CN1310804C (en) | 2007-04-18 |
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| CNB2004100268488A Expired - Lifetime CN1310804C (en) | 2004-04-13 | 2004-04-13 | Wide mouth container bottle, method and device for producing wide mouth container bottle |
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| CN (1) | CN1310804C (en) |
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| CN101941286B (en) * | 2009-07-10 | 2015-03-11 | 中国第一汽车集团公司 | Manufacturing method of large-size truck-engine elastomer air-inlet pipe |
| KR101061361B1 (en) * | 2010-01-28 | 2011-09-01 | 주식회사 파세코 | Seal lip processing apparatus for metallic cans and metallic cans processed by the processing apparatus |
| JP5464745B2 (en) * | 2010-03-17 | 2014-04-09 | ダイハツ工業株式会社 | Synthetic resin fuel tank mounted on vehicle |
| CN102806652B (en) * | 2011-06-02 | 2015-12-02 | 上海实营环保科技有限公司 | Plantation floating plate goods blow moulding process |
| CN102294817B (en) * | 2011-09-02 | 2013-10-02 | 俞安烊 | Process for manufacturing plastic container |
| CN104802389B (en) * | 2014-01-26 | 2017-04-26 | 高志勇 | Wide-mouth bottle automatic blank feeding device |
| CN104015382A (en) * | 2014-05-12 | 2014-09-03 | 宁波爱乐宝婴儿用品有限公司 | Production process of PPSU (Polyphenylsulphone) milk bottle |
| CN111113856B (en) * | 2019-12-19 | 2021-10-26 | 利宾来塑胶工业（昆山）有限公司 | Preparation process for forming narrow-mouth insert on blow-molded part |
| CN113183362B (en) * | 2021-05-14 | 2022-12-23 | 南京布鲁克林环保设备有限公司 | Bottle recovery device |
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| CN1035080A (en) * | 1987-12-07 | 1989-08-30 | 索诺考生产公司 | Large container and container body that the polyethylene terephthalate stretch blow-molded is made |
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|---|---|
| CN1683212A (en) | 2005-10-19 |
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