CN2712804Y

CN2712804Y - Container bottle with wide open

Info

Publication number: CN2712804Y
Application number: CN 200420044694
Authority: CN
Inventors: 黄朝晖; 徐龙斯
Original assignee: Zhuhai Zhongfu Enterprise Co ltd
Current assignee: Zhuhai Zhongfu Enterprise Co ltd
Priority date: 2004-04-13
Filing date: 2004-04-13
Publication date: 2005-07-27
Anticipated expiration: 2014-04-13

Abstract

The utility model provides a container bottle with a wide mouth, which comprises from bottom to top in sequence a bottle bottom which is used to support the container bottle, a bottle body which is as the main containing part, a bottle neck and a bottle mouth. The bottle neck is a transition section which connects the bottle body and the bottle mouth. The bottle bottom, the bottle body and the bottle neck of the container bottle are about an equal wall thickness structure, and the bottle mouth of the container bottle has a crimping structure which is that the flange of the bottle mouth of the container bottle is turnup downwards. The structural strength of the bottle mouth is high, and the sealing performance is good. The container bottle with the wide mouth of the utility model can generate shrinkage and torsional deformation, the requirement of the machining precision can be reduced, and the defective index of the production can be reduced simultaneously.

Description

Wide mouthful of container bottle

Technical field

The utility model relates to a kind of container bottle, and relating in particular to a kind of is wide mouthful of 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 structure, the purpose of this utility model is: provide a kind of wide mouthful of container bottle, 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 simultaneously and also reduces.

The technical scheme that its technical matters that solves the utility model adopts is:

A kind of wide mouthful of container bottle, comprise 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 roughly at the structure of wall thickness, it is characterized in that: the bottleneck of described container bottle has bead structure, described bead structure be described container bottle the bottleneck flange down turnup form.

The beneficial effects of the utility model are that the bottleneck of container bottle has bead structure, guarantees that the intensity and the sealing property of bottleneck reaches requirement.Wide mouthful container bottle of the present utility model 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

Below in conjunction with drawings and Examples the utility model is further specified.

Fig. 1 is the structural representation of wide mouthful of container bottle in the prior art;

Fig. 2 is the structural representation of wide mouthful of container bottle of the utility model;

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 utility model MULTILAYER COMPOSITE;

Fig. 5 is the local structure scheme drawing of the defective of wide mouthful of container bottle of MULTILAYER COMPOSITE in the prior art.

The specific embodiment

As shown in Figure 2, the utility model has related to a kind of container bottle 1, at the bottom of up being comprised 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 utility model 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.The utility model container bottle 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.PEN (PolyEthylene Naphthalate is called for short PEN), nylon and ethylene-vinyl alcohol copolymer resin (EVOH) to oxygen and melting property of carbon dioxide resistance strong than PET, the method of available interlayer is clipped in it between skin and the internal layer PET material, the bottle skin and the internal layer that are the container bottle 1 of described employing MULTILAYER COMPOSITE technology are pet layer, and interlayer is PEN (PolyEthylene Naphthalate is called for short PEN), nylon or ethylene-vinyl alcohol copolymer resin (EVOH) layer.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 described in the utility model 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.

Claims

1, a kind of wide mouthful of container bottle, comprise 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 roughly at the structure of wall thickness, it is characterized in that: the bottleneck of described container bottle has bead structure, described bead structure be described container bottle the bottleneck flange down turnup form.

2, wide mouthful of container bottle according to claim 1, it is characterized in that: described container bottle is a kind of pet resin bottle.

3, wide mouthful of container bottle according to claim 1 and 2, it is characterized in that: the periphery of described bottleneck is threaded structure, convenient and bottle cap is twisted and is closed, the sealing bottleneck.

4, wide mouthful of container bottle according to claim 3 is characterized in that: described bead structure is for being formed to the inboard turnup of bottle by the bottleneck top flange.

5, wide mouthful of container bottle according to claim 3 is characterized in that: described bead structure is for being formed to bottle outside turnup by the bottleneck top flange.

6, wide mouthful of container bottle according to claim 3, it is characterized in that: the bottle wall of described container bottle has the finish coat of the barrier that can improve the pet resin bottle.

7, wide mouthful of container bottle according to claim 3, it is characterized in that: the bottle of described container bottle is a multiple-structure.

8, wide mouthful of container bottle according to claim 7, it is characterized in that: the bottle skin of the container bottle of described employing multiple-structure and internal layer are the pet resin layer, and interlayer is PEN, nylon or ethylene-vinyl alcohol copolymer resin layer.