CN1735539A

CN1735539A - Container bottle cap with sealing element, manufacturing method and manufacturing equipment thereof

Info

Publication number: CN1735539A
Application number: CNA03821279XA
Authority: CN
Inventors: 圭多·里比
Original assignee: Individual
Current assignee: Individual
Priority date: 2002-07-08
Filing date: 2003-07-03
Publication date: 2006-02-15
Also published as: EP1519881A2; RU2005103589A; WO2004005151A3; US20050269283A1; AU2003251005A1; AU2003251005A8; RU2326033C2; WO2004005151A2

Abstract

A composite capsule and variants thereof for closing and sealing bottles and similar containers, consisting essentially of two elements: a rigid cap (3) and a stretchable plastic membrane (2) stretched inside the rigid cap (3) and integral therewith. Different methods for manufacturing composite caps and variations thereof. The composite capsule and its variants can be mounted on bottles (1) and similar containers in a single step, using conventional sealing equipment. The cap also has an axially extending portion in the shape of a glass bottle, the specific function of which is a tamper-evident sealing function.

Description

Container valve protection cap and manufacture method and manufacturing equipment with packing element

Background of invention and prior art

The present invention relates to a kind of device that is used for air-tight bottle or container, it comprises the cap element, this cap element have closed bottom the cup shape and comprise barrier film, this barrier film can keep the shaft extension exhibition of suitable distance perpendicular to device with closed bottom, the cap element also comprises peripheral cylindrical shape or frusto-conical wall, cylindrical shape that this is peripheral or frusto-conical wall are designed to be placed on the end of vessel port, peripheral wall is provided with and is used for the device that combines with open end, this device connects by distortion or spiral so that cooperate with the radial ridges or the outside thread of the outer end of vessel port, also comprises the air locking that places between cup-shaped member and the vessel port edge.

In the prior art, such cap of known several types, this cap is assemblied on the container in some different modes.

According to the special technique of prior art, liquid and/or food container are by screw cap, or crown cap, or different metals or vinyl disc sealing, so that be connected to edge of opening, or inaccessible sealing, they are by other mechanical device fix in position as mentioned above.

The cap of other type, as threaded metal cap on it, make by the cylindrical shape valve protection cap that is contained on the opening as follows, this mode promptly is arranged on the outside face of container end portion of described opening, be formed with outside thread on this end, valve protection cap is provided with negative thread simultaneously, and therefore, the rotation valve protection cap is against described outside thread end.

In bottle or in the analogue, known other type cylinder cup type cap, oncus radially in this cap has on the free edge of its peripheral wall, the projection of peripheral wall forms the negative thread sections, and this sections cooperates with the outside thread that forms on the outside face of bottle wall end of bottle opening part.

Plastic cap has been provided with negative thread, and this negative thread cooperates with the outside thread that forms at the opening part container end portion.

In all these embodiment, owing to cap material self or owing to seal disc or ring on the inside face that is arranged on the cap wall, sealing dish or ring cap wall can obtain sealing effectiveness thus perpendicular to opening axis location.

And the cap representative type of prior art has the safety device of guaranteeing that container is kept closed, and it is as tamper-evident seal, with the attempt that shows that any encapsulant is distorted.

These device representative types are made up of the end ring that the open side from valve protection cap stretches, and they form whole during making cap.In metal cap, be provided with and connect cup-shaped member and promptly be connected bridge on its wall, be peelable line of weakness to form with predetermined tearing force.

Oncus radially in these end ring representative types have, interior radially oncus can have annular or be interrupted shape, so that engages with the outer radial oncus of for example annular shoulder or analogous shape, this outer radial oncus forms in the end of container opening particularly bottle.

Two function of the cap of prior art may be brought defective.At first, use seal disc or ring to require the M/C of some, so that seal disc or ring are installed on the cap, this is the big and complicated program that spends relatively.Equally, utilize the sealing between cup-shaped member and the vessel port can not guarantee that cap is interior aseptic, and produce the problem of sealing and cup-shaped member sterilization.

Secondly, it is the part of tearing of one that the annular end of the side skirt wall by making cap is provided with cap, can realize tamper-evident seal, it is peelable with predetermined tearing force that this tears part, tamper-evident seal can elasticity or stiff distortion, so that combine with the radially widened section of the end of vessel port outer wall, it is positioned at the upstream of the threaded portion of described end.

One object of the present invention is to provide a kind of cap, by simple and cheap assembling, make cap and the operation of mounting cap on container allow to improve the sealing effectiveness between cap and the container, to simplify, and minimizing and cap and container closure operation cost related, improve the hygienic quality of product simultaneously.

And by effectively preventing to remove arbitrarily the attempt that anti-tamper device or hidden container are distorted effect, another purpose of the present invention is to obtain anti-tamper preferably effect.

All be in order to reduce the manufacturing cost of the cap of comparing with the cap of prior art above, but do not require that the cap method of using that adds takes place to change arbitrarily in current bottling and packaging production line.

Describe in detail

The present invention realizes above-mentioned purpose by above-mentioned cap is provided.Wherein air locking is made up of barrier film 2, barrier film 2 facing to and be the axle of so-called valve protection cap 3 perpendicular to cup-shaped member, and cover the open side of described cup-shaped member 3 fully, described barrier film 2 is made by extensible plastic sheeting.

Extensile barrier film 2 can directly be fixed on the edge of the open side of valve protection cap 3, or is contained in the retracted position with respect to described edge of opening in the valve protection cap 3, promptly than the midway location between rear side and the closed side.

Barrier film can some different modes be fixed, promptly or by gluing or arrange by other chemistry and/or physical adherence.

According to first embodiment, as shown in Figure 1, barrier film directly is connected with the edge that around cup-shaped member 3 is the opening of valve protection cap.This edge can advantageously be widened, and to form enlarged or flange, this enlarged or flange have the surface of widening so that adhere to barrier film.

Alternatively or with direct connection combine around the edge of cup-shaped member 3 openings, the variation example of Fig. 3 provides, and barrier film 2 circumferentially extendings surpass described edge, and forms the annular peripheral band at open end, so that be connected with the end of the outer cylindrical wall of cup-shaped member 3.Barrier film also can be by gluing and/or other is chemical and/or physical adherence is arranged fixing.

And, change example according to this, by the natural elastic of the barrier film 2 that stretches in advance, promptly by its contractility, the annular peripheral band close attachment cup-shaped member outside face of barrier film 2.In fact, although extensible barrier film 2 elastic bodys have plastic properties, the big molecule that promptly mutually slides, it also can be after stretching, extension its initial configuration of local recovery.Particularly, when the barrier film 2 of the above-mentioned type places the valve protection cap opening, promptly on the cup-shaped member 3 of rigidity, and stretch along its axis simultaneously, reduce with the quantity of material in the coaxial cross section of opening, because these cross sections are near described vessel port.Therefore produced plane of revolution, its bus is parabolic.In case the longitudinal stress in the plastic material is eliminated, because how much and mechanical reason, axially has a higher elasticity vector along vertical with the vertical stretching direction, thereby be parallel to generation hoop blockage effect on the concentric cross-sectional of plane of revolution, therefore, cause the annular peripheral band of barrier film to make outward flange crinkled.This contraction or a crinkled effect might obtain very high force value according to membrane thicknesses, and always actv. is guaranteed fine and close sealing effectiveness.

Simultaneously, barrier film 2 can advantageously be installed on the valve protection cap 3 by heating barrier film and rigidity valve protection cap.

In the alternate embodiment shown in Figure 2, barrier film can be arranged on the closed side and the mid-plane between the open side of cup-shaped member 3, thereby shroud outside also being provided with on the cylinder side wall of cup-shaped member 3 is provided in a side of the inboard of cup-shaped member specifically.

Once more, barrier film 2, i.e. outer shroud wherein is by adhering to, weld and/or other chemistry and/or physical method can connecting the inwall of cup-shaped member.

Embodiment according to a replacement, elasticity of plastics barrier film 2 is installed on lining 11 or the cylindric ring nut, lining 11 or cylindric ring nut at both ends side are openings, and, as shown in Figure 4, according to first embodiment, also have such internal diameter, promptly when barrier film 2 faced toward the opening of cup-shaped member 3, its annular peripheral band is heavy folded certain title degree on the outside face of the peripheral wall of cup-shaped member 3, because elasticity and/or form fit are arranged, lining or ring nut 11, are arranged on the cup-shaped member 3 along its axially extended part at the open end of cup-shaped member 3, therefore, make the outside face of wall of the outer shroud pressed glass shape element 3 of barrier film 2.

As shown in Figure 5, change in example at similar other, the natural scale of the diameter of cup-shaped member 3 and lining or ring nut makes, lining 13 is arranged on the certain axial depth on the inside face of peripheral wall of cup-shaped member 3, the annular peripheral band of its outer surface in compression barrier film 2 simultaneously, the annular peripheral band of this barrier film 2 make the inside face of cylindrical wall of the outside face of lining or ring nut and cup-shaped member 3 overlapping against.

Obviously, barrier film can also successive welding or simultaneously gluing.

Lining 11 or 13 or ring nut can have approaching face, if lining or ring nut are designed to firmly put in the cup-shaped member, then this approaching face can be made up of the circular cone or the circular arch cone of insertion end.

In both cases, crooked barrier film 2 is favourable imbed cup-shaped member and lining 11 13 or the assembly of ring nut in.

According to another different embodiment, lining 11 or ring nut are realized being connected with the radial groove cooperation of another part with the radial ridges of cup-shaped member 3 by one of this two elements, radial groove can originally be provided with, or by when engaging, forming by the distortion of the radial ridges of another part.

Another simple and cheap embodiment shown in Figure 17 and 18 provides, for employing or without ring nut 11 or lining, barrier film 2 is fixed on the rigidity cup-shaped member 3 simply, the substitute is, the element that combines with the cup-shaped member of rigidity 82 is made by elastomeric material, also have cup-shaped, and have along its sidewall suitable to thickness portion, be used to contact the inside surface of side wall of rigidity cup-shaped member 3, rigidity cup-shaped member 3 is darker than elasticity cup-shaped member 82 vertically.

Extensile plastic components 82 is preferably by the jet molding manufactured, and has cup-shapedly, and it has thicker and harder outer rim.

Closely the above-mentioned variation example against the lining 11 of rigidity cup-shaped member 3 or ring nut is similar with being used to guarantee barrier film 2, the free edge of extensile plastics cup-shaped member 82 has arbitrarily suitably the reinforcement flange or the annular widened section of shape, and by the same material manufacturing, its internal diameter preferably deducts the double thickness of the cylindrical portions may of element 82 corresponding to the internal diameter of valve protection cap 3 or cup-shaped member, and its external diameter is equal to or greater than the external diameter of valve protection cap 3 or rigidity cup-shaped member, and its thickness is enough to make the edge enough hard.

The foregoing description is described with reference to the rigidity cup-shaped member or the valve protection cap of cylinder or basic cylinder and circular cone or basic circular cone.

Above-mentioned different embodiment also is provided with plastics and metal valve protection cap 3 or rigidity cup-shaped member.

Can see more clearly below, some embodiment are more suitable for being used for truncated cones valve protection cap 3 or rigidity cup-shaped member, and other cylinder rigidity cup-shaped member 3.

With reference to first embodiment, when it and rigidity cup-shaped member 3 are cap that the rigid metal valve protection cap forms when combining, the present invention's proposition is used to make the method for the combination of cap and barrier film 2, and its step comprises:

1. from relative with the open side side by barrier film 2 closures promptly and fixedly secure rigidity cup-shaped member 3, preferably carry out above-mentioned action by electromagnet 37, this electromagnet 37 contacts with rigidity cup-shaped member 3 from the outside of closed side;

2. along the axis of described rigidity cup-shaped member 3 and/or cylindrical hole, 3 propellings of rigidity cup-shaped member are had in the cylindrical hole of suitable diameter, extensile plastic diaphragms 2 faces toward the opening in described hole in advance in suitable arbitrarily mode.

3. by inserting rigidity cup-shaped member 3, so that it pierces in the cylindrical hole or passes through cylindrical hole, come tensile membrane like this, therefore, the surface of barrier film is because its interior transverse stress forms the shape of the paraboloid of revolution, so that withstand the annular blade 38 of appropriate location, this annular blade 38 is positioned at apart from opening a distance, hole, and shift the back that direction on the barrier film 2 is positioned at the hole opening onto at rigidity cup-shaped member 3, annular blade 38 dangles and becomes whole with the inboard in hole, the hole internal diameter is greater than the external diameter of rigidity cup-shaped member 3, and remarkable diameter less than cylindrical hole.

Therefore, barrier film 2 is along the circumference cutting, thus the outer shroud of formation, and this outer shroud overlaps the truncated cone outer wall of rigidity cup-shaped member 3 and shrinks thereon.

Therefore, the outer shroud of barrier film 2 shrinks around the cone outer wall of the truncation of rigidity cup-shaped member 3, because the inner transverse elastic stress that extensile plastic polymer longitudinal stretching produces, its diameter is less than the maximum gauge of described rigidity cup-shaped member 3.

In addition, this can obtain by combining with the rigidity cup-shaped member 3 with cylindrical shape or frustroconical.

Be used to make the theme that barrier film 2 and the method for rigidity cup-shaped member 3 bonds form relevant dependent claims, be described in detail below by preferred embodiment.

Method at assembling closing device of the present invention, or be installed in form on the rigidity cup-shaped member 3 in advance with barrier film 2, or with the form of extensile plastics cup-shaped member 82, behind extensile barrier film 2, device of the present invention is installed on the opening of container 1 with commonly used or known mode.

In threaded closing device especially for plastic bottle, the rigidity cup-shaped member that forms valve protection cap is installed to valve protection cap on the container by utilizing elastic force, thereby the axis with respect to closing device and/or vessel port produces longitudinal travel, therefore, barrier film 2 not can closing device in conjunction with preceding or during break.In the step of installing with axial force, because the effect of compression device, the natural elastic force of extensile cup-shaped member 82 and container 1 allows the matching thread of the bonded device of described two parts and anti-tamper ring to be bonded with each other.

(employing is used for the known method of non-compound valve protection cap when closing device is installed on the container 1, this non-compound valve protection cap is different with valve protection cap of the present invention), the bottle or the opening of other container arbitrarily, on barrier film 2 or extensile plastics cup-shaped member 82, apply power, thereby it is stretched as follows, be the edge that barrier film sticks to the opening of container 1, thereby play and the irrelevant sealing function of cap tightening force.Open when promptly turning on when the cap of container 1, therefore the membrane ruptures of bearing friction stress, forever is in open mode.Like this, closing device of the present invention allows easily to check whether container is distorted.In fact, make anti-tamper ring can prevent that with the known technology that oncus 35 breaks away from it from separating with cap although utilize, this oncus 35 fixedly is close to anti-tamper ring the opening of bottle 1, do not destroy the barrier film relative with vessel port, just container is finally opened, be prevented that for example the product that wherein comprises is changed in the malice attempt.

Further improvement of the present invention and variation form the theme of dependent claims.

With reference to figure 1, closing device is made up of compound valve protection cap, comprises rigid cylinder cup-shaped member 3 and extensible plastic diaphragms 2, and this extensible plastic diaphragms 2 promptly is fixed on the description edge of the open side of cup-shaped member 3 facing to the whole opening of cup-shaped member 3.

Advantageously, for bigger adhesive surface is provided, the flange forms that is arranged to radially widen around the sidewall edge of the described cup-shaped member 3 of opening.Barrier film 2 can be fixed on the rigidity cup-shaped member 3 with arbitrary form, and this form for example is that gluing, welding or other chemistry and/or physical adherence are arranged.

The variation example of Fig. 3 displayed map 1 embodiment, the peripheral flange that wherein is used to connect barrier film 2 has the circular cone profile of diffusion, and this circular cone has the slight dome shape surface so that adhere to barrier film.

It is favourable that this embodiment installs configuration for elastic force, when described barrier film is installed on the opening of rigidity cup-shaped member 3, by making described barrier film compress rigidity cup-shaped member 3, and subsequently along the circumference cutting barrier film 2 that centers on rigidity cup-shaped member 3 at certain radial distance, this method described in claim 33, because the natural elastic of barrier film 2, this configuration is possible.

Behind cutting step, owing to adopt extensile material, the outer shroud of barrier film 2 is subjected to the effect of elastic shrinkage effect, and the outer shroud of barrier film 2 causes peripheral flange to shrink against tapered flanges.If this band has enough width, the outermost radial component can arrive circular groove, and forms a kind of collar around rigidity cup-shaped member 3 by shrinking.

Yet in the embodiment of Fig. 2, barrier film is embedded in the rigidity cup-shaped member 3.This embodiment is favourable, because the barrier film that stretch to embed exposes seldom, thereby can direct contact does not pollute and is subjected to physical disturbance.

In addition, extensile barrier film has peripheral flange, yet the latter is designed to be fixed on such position, fix in position on the inboard of the heavy peripheral wall that is stacked in cylinder rigidity cup-shaped member 3 of this position peripheral flange.

As example previous among Fig. 1, barrier film can be provided with by gluing, welding or other known chemistry and/or physical adherence.

Fig. 4 and Fig. 5 show two alternate embodiments, and its septation 2 is fixed on the open side of rigidity cup-shaped member 3 and the midway location between the closed side.

In both cases, rigidity cup-shaped member 3 is arranged to combine with ring nut or

lining

11,13, and ring nut or

lining

11,13 are designed to for example install by shrinkage power or elastic force engage rigidity cup-shaped member 3.

In the example of Fig. 4, the internal diameter of ring nut or lining 11 is substantially equal to or is slightly larger than the external diameter of cup-shaped member 3, and ring nut or lining 11 are designed to coaxial arrangement on its peripheral wall, at least be arranged in and have predetermined shaft on the part of elongation, be i.e. a part or whole part elongation of the cylindrical wall of rigidity cup-shaped member 3.Barrier film 2 is facing to the opening of rigidity cup-shaped member 3, the overlapping outside that overlays the peripheral cylindrical wall of described cup-shaped member 3 of its peripheral flange.Therefore, this barrier film machinery remains between the outside and ring nut or lining 11 of cylindrical wall of rigidity cup-shaped member 3, and wherein said rigidity cup-shaped member 3 is installed in ring nut or the lining 11.If rigidity cup-shaped member 3 and lining or ring nut 13 are by the metal manufacturing, these two parts can be by shrinkage or by lining or ring nut 12 are radially exerted pressure and combination near the cylindrical wall of rigidity cup-shaped member 3, and before described combination can occur in and be applied to closing device on the container or during applying, this application is included in the rotating closed device of opening of container, to form for example outside thread, with oncus in closing device and vessel port, the fin that mutually combines between annular shoulder and/or the recess, this application is used for closed container at present, for example in the metal valve protection cap of bottle or analogue.

If rigidity cup-shaped member 3 and lining or

ring nut

11 or 13 are by the plastics manufacturing, so, these two parts can be by elasticity and/or bayonet fitting and/or welding and/or gluing or other is chemical and/or physical adherence is arranged and connected, and may install to engage with previous bayonet fitting or elastic force to combine.Possible, the circular cone profile can slightly be justified or be shrunk to the free edge of the opening of rigidity cup-shaped member 3, so that insert in lining or the ring nut 11.

The different embodiment of Fig. 5 disclose a kind of reverse, and wherein lining 13 or ring nut 11 are designed to inject in the rigidity cup-shaped member 3, and therefore the diameter dimension of described two parts is suitable.In this case, barrier film 2 is facing to the end of lining 13 or ring nut 11, so that be arranged in the inboard of rigidity cup-shaped member 3.Basically as described in the previous embodiment of Fig. 4, barrier film is connected with lining or ring nut 11, and lining or ring nut 11 combine with rigidity cup-shaped member 3.

Fig. 6 shows different embodiment, wherein except the barrier film 2 of the embodiment of Fig. 2, plate-like sealing 4 or analogue is set also.

In Fig. 7, the closed-wall of rigidity cup-shaped member 3 has an aperture 9, and this aperture 9 is closed outside by the transparent wall 8 of the described aperture 9 of sealing, and sealing for example is to be adhesive on the inboard of corresponding wall of rigidity cup-shaped member 3, and even can be made up of seal ring.

Fig. 3 is the variation example of the embodiment of displayed map 2 again, wherein, predetermined axial component along the cylindrical wall of rigidity cup-shaped member 3, or along the predetermined axial component of ring nut 11, the cylinder peripheral wall of rigidity cup-shaped member 3 is interrupted, promptly form, yet the present invention is not limited in this situation of method that only makes things convenient for barrier film 2 to use by the wall part that separates by breach 12.

Figure 14 or 15 or 16 shows that closing device is installed in the typical method on the bottle 1.Utilize the principle on surface of diaphragm seal container 1 basic identical with embodiment described below.

When closing device is installed in the opening of container 1, with this assembly axis on the opening that is advanced to container 1, thereby on barrier film, exert pressure and make its stretching, extension.Under these states, barrier film stretches.Divide the period of the day from 11 p.m. to 1 a.m greatly when the elastic body that forms barrier film has promptly mutual slip of plasticity, by part elasticity, it also can partly recover its initial configuration after stretching, extension.Particularly, when the barrier film 2 by such poly-mer manufacturing is arranged on the opening of container 1, and simultaneously along opening shaft to stretching, extension, for example by compound valve protection cap is installed therein, reduce with the quantity of material in the coaxial cross section of opening, because these cross sections are near the opening of container 1.Therefore produced plane of revolution, its bus is parabolic.

In case the longitudinal stress in the plastic material is eliminated, because how much and mechanical reason have higher elastic characteristic along the axis vertical with the vertical stretching direction, produce the hoop blockage effect in the concentric cross-sectional that is parallel to plane of revolution, therefore, cause barrier film 2 to make the outward flange of opening crinkled.This contraction or a crinkled effect might obtain very high force value according to barrier film 2 thickness, and always actv. is guaranteed fine and close sealing effectiveness.

Simultaneously, barrier film 2 can advantageously be installed on the rigidity valve protection cap 3 by the opening of heating barrier film 2 and rigidity valve protection cap 3 and container 1.In fact, heating causes the technical performance of plastic material to change, so that its adhesion.

Compound valve protection cap of the present invention can selectively use elastic seal 4.For health and sealing purpose, sealing 4 typically is positioned between cap 3 and barrier film 2.But it also representative type directly be contained in the valve protection cap 3.

At Figure 14,15 particularly among Figure 16, the rigidity cup-shaped member 3 that is also referred to as valve protection cap is made up of screw cap, it comprises anti-tamper seal ring, the sealing ring connects the remainder of rigidity cup-shaped member 3 by tear line, i.e. Shi Ji screw cap, thus this tear line need just can be torn with predetermined breaking force and prevents to distort.

If cup-shaped member is by the metal manufacturing, can form its screw thread in known manner, the guaranteeing of the predetermined tear line of seal ring 36 and rigidity cup-shaped member 3 combines needed further distortion arbitrarily with bottle 1 opening, this manufacturing process comprises the open outer side rotation of cup-shaped member at bottle 1, bottle has oncus that forms outside thread 101 and the shoulder 35 that is used for axially keeping seal ring, and seal ring is represented with numeral 36.

Then, closing device is installed on the opening, and is pulled to and compresses opening, against the corresponding wall of rigidity cup-shaped member 3, therefore makes barrier film 2 distortion, so that obtain above-mentioned effect up to the edge of container 1 opening.

Figure 14 a, 15a and 16a are presented at and promote opening before the state of sealing arrangement against bottle 1, and Figure 14 b, 15b and 16b show reality removal of screw cap, the bridge of wherein visible tear line of being scheduled to 33 and the anti-tamper ring of maintenance.

Diagram barrier film 2 is in not open circuited state, it is torn by unscrewing operation although be necessary.Therefore, arbitrarily do not destroy anti-tamper ring 32 and the attempt of unscrewing closing device, for example utilize instrument, will cause being forced to break, open clearly to show this bottle facing to the barrier film 2 of bottle 1 opening so that make this ring 32 by oncus 201.

In this connects, can obtain benefit by providing with the routine similarly transparent wall 8 of the variation of Fig. 7.By this kind configuration, need not open container, can be easy to see the wanton destruction of barrier film 2.

With reference to the variation example of figure 4 and Fig. 5, Figure 16 a and 16b show foregoing.

In this case, barrier film 2 is operated in just identical mode, and 32 some details changes of only anti-tamper ring, and this does not influence its feature and operation mode.

Some distinct methods are provided, are used to make device as shown in Figure 2.Figure 26 represents first method, and also be suitable for the rigidity cup-shaped member 3 that plastics are made, this method comprises at first makes barrier film disk 2, its diameter is bigger than the internal diameter of valve protection cap 3, so that coaxially stick to by vacuum 20 on the closed and bottom suitably perforate of hollow cylinder 21, the internal diameter of this hollow cylinder is less than the internal diameter of valve protection cap or rigidity cup-shaped member 3, so that after this spend sweeps by 90 of barrier film disk 2, be forced in the valve protection cap 3 along cylindrical portions may, thereby it is adhered thereto, the barrier film disk exceeds the diameter of cylinder 21, near the free edge of rigidity cup-shaped member 3.Low taper truncated cones can be set, and to replace cylinder, its end, have less diameter.

As shown in figure 27, the another kind of equipment that is used to implement said method is made up of combinatorial cylinders, promptly, form by some parts, its external diameter is less than the internal diameter of rigidity cup-shaped member 3, described combinatorial cylinders vertically is divided at least two fan sections 27 with 180 ° of angular breadth, the perforate equably of this combinatorial cylinders, and have closing bottom, and by pneumatic cam actuator, for example, by suitably piston between fan section 27 28 and cylinder 28bis, or by air bag, laterally spread apart, yet they can pass through suitable spring 29, the ring spring in for example outside and inner fan section 27 around combinatorial cylinders and drawn nearer.The hollow fan section of each of cylinder remains on vacuum 20 times, and has at least one hole at its closing bottom.The Mechanical Driven device is finished following operation, promptly catches barrier film disk 2, is introduced in the valve protection cap 3, and the part that surpasses cylinder 21 is exerted pressure makes its inner cylinder part against valve protection cap 3 then, so that adhere to.

Fig. 8 to 13 shows the variation example of the method be used to install barrier film 4.Here, the open side of rigidity cup-shaped member 3 is at first by tapered cotter 14 enlargings, pass through tack cylinder 15 then and flatten, and rigidity cup-shaped member 3 is put into the shell 16 of correspondingly-shaped, and barrier film disk 2 is placed on respect on the crooked 90 degree planes partly of cylinder axis with any suitably form.Then, by first to the palintrope step, then carry out the roll-in aligning thereon by suitable roller 17 and roller vis-a-vis 18, and/or the coaxial compression by circular cone fan section 19, this circular cone fan section 19 is connected to form a kind of axle, the flattening edge that barrier film 2 is installed on it returns to its initial position, and what this valve protection cap 3 was firm by applying vacuum to it simultaneously is fixed in its seat or the socket 16.

Shown in Fig. 3 bis, enlarging, flattening, the step of barrier film disk 2 being installed and recovering the sweep position subsequently also can be implemented on rectangle or trapezoidal surface, and this surface limits by otch 12, and barrier film 2 sticks on the otch.

And, by the rigidity cup-shaped member 3 that roational molding is made by ductile metal, can obtain free edge enlarging or 90 ° of flattenings of rigidity cup-shaped member 3.Here, but metallic particles is introduced in the mould of suitable opening, and forced it to be dispersed in whole space in the mould, implement above-mentioned aligning step then by rotation.

Yet, with reference to Figure 17 and 18, the latter shows an alternate embodiment, relate to claim 12 and its dependent claims, the cup-shaped member 82 that its septation 2 is made by extensible materials replaces, cup-shaped member 82 has the peripheral edge of expansion at its opening, and by firmly being installed on wherein, or by exerting oneself against the peripheral wall installation enlarged of rigidity cup-shaped member 3, thereby combine with rigidity cup-shaped member 3, obtain the distortion 84 of described peripheral wall like this, the recess that being used for of promptly forming engages with described margo 85, it is by extensile plastics cup-shaped member 82 shapings.

The barrier film of cup-shaped member 82 forms by its closed side and its peripheral wall, yet, as mentioned above, being shaped owing to form the complementation of the bayonet fitting device of cooperation, margo is used for combining with rigidity cup-shaped member 3.

When detailed consideration rigidity cup-shaped member 3, barrier film 2 is replaced by extensile plastic components 82, preferably by the jet molding manufacturing, and have the cup-shaped of thicker or harder peripheral edge, promptly, shape with closing bottom hollow cylinder of suitable thickness, yet, its free edge has flange or the annular made by the arbitrary shape same material and strengthens enlarged, the internal diameter that the internal diameter of this flange or enlarged preferably equals rigidity cup-shaped member 3 deducts the double thickness of the cylindrical portions may of element, and its external diameter is equal to or greater than the external diameter of rigidity cup-shaped member 3, and its thickness is enough to strengthen to rim.

This extensile plastics cup-shaped member 82 is installed in the rigidity cup-shaped member 3 as follows, promptly, the rim of its thickening contacts with the free edge of rigidity cup-shaped member 3, and when described device was installed in the opening of container 1, the cylindrical wall of plastics cup-shaped member 82 and its closed bottom were as the thin membrane that stretches.The inner cylinder of the outer closed cylinder part specific rigidity cup-shaped member 3 of element 82 is partly short, and contacts with each other.

Perhaps strengthen the elastic force response that rim forms against the free edge of valve protection cap 3 by it, perhaps by gluing or weld zone or all surfaces so that contact with rigidity cup-shaped member 3, extensile plastics cup-shaped member 82 can with rigidity cup-shaped member 3 formation integral body.Extensile plastic components 82 can further have the truncated cone-shaped of closing bottom, and it is in the smaller diameter side closure, and preferably is set as with the truncated cone-shaped cup-shaped member 8 of rigidity and combines.

This reinforcement enlarges rim 85 and/or flange can form tamper-evident seal, so that preferably be fixed in the special annular outer cover of rigidity cup-shaped member 3, or fixes with other suitable forms arbitrarily.

Figure 19 and 20 shows the method according to this invention and is used to make the equipment of compound valve protection cap that this compound valve protection cap has truncated cone-shaped, and combines with sealing film or barrier film 2.

This method is used to make truncated cone-shaped metal composite valve protection cap, and by shrinking so that adhered thereto on the rigidity valve protection cap, this method comprises the steps:

From with firmly fix rigidity cup-shaped member 3 by the relative side of the open side of barrier film 2 closures, preferably utilize electromagnet 37 to carry out above-mentioned action, this electromagnet 37 contacts with this rigidity cup-shaped member 3 from the outside of rigidity cup-shaped member 3 closed side;

2. along the axis of described rigidity cup-shaped member 3 and/or cylindrical hole rigidity cup-shaped member 3 is introduced and had in the cylindrical hole of suitable diameter.

On the opening in described hole facing to extensile plastic diaphragms 2 is set, and barrier film is kept wherein in suitable arbitrarily mode.

4. when barrier film 2 penetrates in the cylindrical hole, utilize rigidity cup-shaped member 3 tensile membrane 2, barrier film will be because its interior transverse stress will present paraboloid of revolution shape.

5. after shifting onto the rigidity cup-shaped member on the barrier film 2, whole around rigidity cup-shaped member 3 cutting barrier films 2 with hole maintenance certain distance with at the back in hole blade, for example use sharp annular blade 38 to cut.Described annular blade 38 is coaxial and integrally put in the cylindrical hole, and its diameter is greater than the external diameter of rigidity cup-shaped member 3, and significantly less than the diameter of cylindrical hole.

Because the transverse elasticity stress that longitudinal stretching produced of extensible plastic polymer, the outside face that centers on the free edge of rigidity cup-shaped member 3 from the edge that barrier film cuts out shrinks, its diameter is less than the maximum gauge of truncated cone-shaped rigidity cup-shaped member 3, and by the final locks in place of shrinkage.

Following information is fit to these all valve protection caps according to this specification sheets:

Compound valve protection cap is made up of rigidity cup-shaped member 3 basically, the wherein extensile barrier film 2 vertically axis with rigidity cup-shaped member 3 is relative, its plane is in the open side of described rigidity cup-shaped member 3 and the suitable distance between the bottom, and this compound valve protection cap must satisfy several special states.

First state is that it will can be used in experiment or present obtainable envelope bottle equipment.

Second state is by shirtsleeve operation, promptly make the opening of rigidity cup-shaped member 3 against bottle 1 or similar containers by exerting pressure, the stretching, extension that barrier film 2 is can be on the edge of opening of bottle 1 or similar containers suitable, and, after stretching step, when the opening of container 1 contacts the bottom of rigidity cup-shaped member 3, use legacy equipment by opening at container 1, if rigidity cup-shaped member 3 is to be made of plastics, it can curl or melt.This operation allow to obtain firm and elastic closure closely.

The third state is that this compound valve protection cap can be easy to just sterilize so that store before the envelope bottle.

Four condition, this compound valve protection cap also will have special geometry and mechanical specialities, according to the quality of extensile plastic polymer and thickness and the metal or plastic shape and the quality that form stiffener 3, the most important thing is the distance of the barrier film 2 that applies in advance and the edge of opening of rigidity cup-shaped member 3.

These essential characteristics are:

1. the distance of this barrier film 2 and rigidity cup-shaped member 3 must make compound valve protection cap can loosely cover the opening at container 1, so that sealing.

2. the distance between barrier film 2 and rigidity cup-shaped member 3 must be, when described rigidity cup-shaped member 3 by pressure during against the opening of container 1, barrier film 2 fully stretches, so that be tightly adhered to the edge of container 1, but does not have to the degree that is torn.

Form necessary can the layout by other elasticity of material of valve protection cap by shrinkage, by heating or fusing, or by screwing on the opening that is fixed on container, so that obtain firm adhesion.

In order to obtain these characteristics, the present invention also provides the method for the ductile metal valve protection cap of the energy shrinkage of making assembled in advance.

Shown in Figure 22,23,24,25, different embodiment according to the subject invention, valve protection cap described herein has additional sealing or anti-tamper device, it is made up of the expandable part 30 towards the wall of the cap of container 1 bottom, this cap is a rigidity cup-shaped member 3, towards container 1 bottom promptly towards the offside of container, expandable part is from predetermined the tearing or the part of transversal 33 of the vicinity of rigidity cup-shaped member 3, and stretch surpassing described seal ring so that cover whole seal ring, this is torn or transversal 33 makes cap member separate with seal ring 36.In this case, expandable part is provided with the taper widened section, the taper widened section is designed to place on the whole seal ring, the sealing environmental protection is held between two continuous or open circuited annular shoulders 35, perhaps the taper widened section is designed to removing with respect to cap on the rear side of direction, be placed on the continuous or open circuited annular shoulder 36, wherein annular shoulder forms on the neck of container or bottle 1 in the predetermined distance of distance opening.

This circular cone expandable part is by rigid material, and effectively prevent seal ring to be subjected to any means effect and be out of shape, this instrumental purpose is to remove whole valve protection cap by not making under valve protection cap parts and the situation that seal ring 36 separates, so that make seal ring pass through annular shoulder 35, thus hidden distorting.

Shown in Figure 22,23,24 and 25, advantageously, the circular cone expandable part that forms the rigidity cup-shaped member 3 of cap member stretches and surpasses seal ring 36, and towards the bottom of bottle or container, thereby form a kind of glass bottle of arbitrary shape, at least in the free edge part of expandable part, perhaps at least along the end band that is right after described free edge, or basic whole wall along described expandable part, the wall of glass bottle is positioned on the outer skirt wall of bottle or container.Shape according to bottle or container can be determined different alternative.

Advantageously, described expandable part can be made by a single-piece of the cap member with rigidity cup-shaped member 3, or gluing thereon or welding, and therefore, the described cap member of rigidity cup-shaped member 3 forms at the bottom of the glass bottle.

Advantageously; in order to ensure the enough health of glass bottle; the part that axial length that this glass bottle had and shape can be guaranteed the free edge of glass bottle and be close to it is placed in position with respect to bottle 1 or container; this position makes label 32 and described free edge and described overlapping; so that the free edge of cover glass bottle and the periphery that is close to it stop contamination particle to penetrate glass bottle simultaneously.

Figure 22,23,24 and 25 shows the different embodiment of this layout.

In Figure 22, the valve protection cap bottom of the axis that passes across bottle is also formed on the bottom 34 of glass bottle, and described cap element and glass bottle 30 are by the monomer manufacturing.The described wall of axle that should note crossing bottle 1 is thicker, and has the diameter greater than the valve protection cap bottom.The carrier base that is used for glass bottle that this provides expandable part 30 to form, and further be convenient to unscrew or remove valve protection cap from bottle 1.

In the embodiment of Figure 23, glass ampuliform expandable part 30 has bearing 130, wherein, and by gluing and/or welding and/or the fixing cap member of rigidity cup-shaped member 3 of other chemistry and/or physical method arbitrarily.In this case, bearing is in the inboard formation of the peripheral wall of glass ampuliform expandable part 30, the profile complementation of the shape of this bearing and rigidity cup-shaped member 3.

The variation example of Figure 25 shows a kind of not isostructure, wherein glass ampuliform expandable part remains the glass bottle that separates with cap member, but form by the crevice of the appropriate size of the peripheral wall of glass bottle linear element 30 with glass bottle linear element 30 bonded assembly bearings, outer shroud or cup-shaped closure member 39 also are provided, the peripheral wall of the closed end glass bottle element 30 of outer shroud or cup-shaped closure member 39, this end is positioned on the closed side of cap member 3.

According to different embodiment as shown in figure 21, this glass bottle has the shape that corresponds essentially to bottle 1 or container end portion, and related with the bottom, size that described glass bottle 31 is had and/or shape are easy to by the bottom of elastic force mount at described bottle it with removing.In addition, label 32 is arranged to and the free edge that overlaps glass bottle of previous embodiment same effect.

Present embodiment can combine with previous embodiment, and bottle can be united with at least two glass bottles thus, and one of them of glass bottle also is used for protecting seal ring 36.

Note:

Referring to accompanying drawing, feature of the present invention will show more clearly from following unrestricted embodiment, in the accompanying drawing:

Fig. 1 is the axial, cross-sectional view according to the cylinder closing device of the first embodiment of the present invention.

Fig. 2 demonstration is similar to the variation example that Fig. 1 shows embodiment.

Fig. 3 is the another variation example of embodiment as shown in Figure 1

Fig. 3 bis is another view that changes example according to the difference of claim 40.

Fig. 8 to 13 expression is used to make the different step of sending out the method for metallic closed device according to the present invention.

Figure 14 a and 14b show that the device of inciting somebody to action as shown in Figure 2 is installed in the method on the bottle.

Figure 15 a and 15b show, are similar to Figure 14, and as shown in Figure 5 device is installed in method on the bottle.

Figure 16 a and 16b show, are similar to Figure 14, and as shown in Figure 4 device is installed in method on the bottle.

Figure 17 and 18 expressions are according to claim 13 and described element of dependent claims and layout thereof.

Figure 19 and 20 expressions are according to the equipment shown in the claim 33, and in two different control steps, it is used for making according to truncated cone-shaped metallic closed device of the present invention.

Figure 21 is the view of container, and it is related with the glass bottle that meets its bottom shape.

Figure 22 .23.24 represents the different embodiment according to closing device of the present invention, and wherein the rigidity cup-shaped member is connected with glass bottle with glass ampuliform expandable part, and this glass ampuliform expandable part covers tamper-evident seal ring, the bottom mating of this glass bottle and container.

Figure 26 is the section drawing of perforate cylinder, and when this perforated drum kept by vacuum, the barrier film disk was installed in the valve protection cap.

Figure 27 shows cylinder is divided into two fan sections, and this two fan section can spread apart, so that the barrier film disk is installed in the valve protection cap.

Claims

1. A device for sealing or tightly closing a bottle (1) or similar container, characterized in that it has at least two elements firmly fixed together, namely, a cup-shaped with a hollow rotating shape a rigid cap (3) produced by a hollow cylinder or truncated cone with a closed bottom and manufactured from metal, plastic or other material with similar properties; and a stretchable plastic septum (2), The stretchable plastic membrane is always facing the edge of the open side of the rigid cap (3), or preferably, in any suitable manner in the plane between the closed bottom of the cap (3) and the opening. Suitably perpendicular to the axis of the cylinder or truncated cone, when the device is mounted on the opening of the container (1), the membrane stretches and tightly adheres to the edge of the opening, and the cylinder or truncated cone The tapered wall has means (101) which, by deformation or screw fastening, cooperate with radial ridges or external threads of the open end of the container (1) and sealing means (4) are placed in the cap Between the closed bottom of (1) and the edge of the opening of the container (1).

2. Device according to claim 1, characterized in that the membrane is fixed on the rigid cup-shaped element, namely the bottle cap (3), in several different forms, either by gluing or by other chemical and/or physical Adhesive arrangement.

3. The device according to claim 1 or 2, characterized in that the diaphragm (2) can be fixed to the rigid cup-shaped element by directly connecting the diaphragm to the edge surrounding the opening of the cup-shaped element 3, i.e. the cap (3). Promptly on the bottle cap (3).

4. The device according to claim 3, characterized in that the edge around the opening of the rigid cup-shaped element, i.e. the bottle cap (3), can be widened in such a way that an enlarged and/or thickened portion or flange is formed, This enlarged and/or thickened portion or flange is provided for providing a wider surface for the adhesive membrane (2).

5. The device according to any one or more of the preceding claims, characterized in that the membrane (2) extends radially beyond said rim and forms an annular peripheral surface designed adjacent to the cup-shaped element The open end is glued against the end of the cup-shaped element, ie the outer cylinder or frusto-conical wall of the bottle cap (3).

6. Device according to claim 5, characterized in that, due to the natural elastic properties of the membrane (2), the annular peripheral band of the membrane (2) closely adheres to the outer surface of the cup-shaped element, ie the cap (3).

7. The device according to any one or more of the preceding claims, characterized in that the plastic elastic membrane is positioned in a bush (11) or a cylindrical ring nut which Open at both ends, and have such an inner diameter, so that when the diaphragm (2) faces the opening of the cup-shaped element, that is, the rigid cap (3), the annular periphery of the diaphragm (2) is in the cup-shaped element or cap (3). The outer surface of the peripheral wall of (3) overlaps to a certain extent, due to the elastic and/or shape-fitting arrangement, the bushing (11) or ring nut, from the open end of the cup-shaped element (3), extends in its axial direction The part of is arranged on the rigid cup-shaped element (3), so that the outer surface of the cylindrical wall against the rigid element (3) compresses the peripheral band of the diaphragm (2).

8. The device according to any one or more of the preceding claims, characterized in that the ratio of the diameter of the rigid cup-shaped element (3) to the diameter of the bush (13) or ring nut is such that the bush (13 ) penetrates the inner surface of the peripheral wall of the cup-shaped element (3) along a certain axial depth, thereby compressing the annular peripheral band of the diaphragm (2), which makes the rigid cup-shaped element (3) The inner surface of the cylindrical wall overlaps the outer surface of the bushing (13) or ring nut.

9. A device as claimed in claim 7 or 8, characterized in that subsequent welding or simultaneous gluing can also be provided.

10. Device according to one or more of claims 7 to 9, characterized in that the bushing (11) or (13) or the ring nut can have a lead-in surface if the bushing or the ring nut is designed to In the cup-shaped element (3), the introduction surface consists of a cone or a domed cone at the insertion end.

11. Device according to one or more of claims 7 to 10, characterized in that the membrane (2) is embedded in an assembly of a rigid cup-shaped element (3) and a bush (13) or ring nut.

12. Device according to any one or more of the preceding claims, characterized in that the bush (11) or ring nut and the rigid cup-shaped element (3) are connected by a radial ridge of one of the two elements , the radial ridge cooperates with the radial recess of another component, and the radial recess may be provided initially, or formed by deformation of the radial ridge of the other component, upon connection.

13. Device according to any one or more of the preceding claims, characterized in that the element (82) is arranged in combination with a rigid cup-shaped element (3) and is made of elastic material, also cup-shaped, the circle of which The barrel wall is designed to be in contact with the inner surface of the cylindrical or frusto-conical wall of a rigid cup-shaped element (3) axially smaller than the elastic cup-shaped Element (82) is deeper.

14. Device as claimed in claim 13, characterized in that the extensible elastic element (82) is manufactured preferably by injection moulding, it is in the shape of a cup with a peripheral rim which is thicker and /or a stiffer ring in the shape of a hollow closed bottom rotor of appropriate thickness.

15. Device according to any one or more of the preceding claims, characterized in that the free edge of the extensible plastic cup-shaped element (82) has a reinforcing flange or annular widening (85) of any suitable shape ), and are made of the same material, and the inner diameter of the flange or enlarged portion preferably corresponds to the inner diameter of the rigid cup-shaped element (3) minus twice the thickness of the cylindrical portion of the element (82), and the outer diameter is equal to or greater than the outer diameter of the outer cylindrical wall of the rigid cup-shaped element (3), and of sufficient thickness to reinforce the rim.

16. The device according to any one or more of the preceding claims, characterized in that the rigid cup-shaped element (3) has a cylindrical or substantially cylindrical or conical or substantially conical shape and has a Ring support (84) of rim (83).

17. Device according to any one or more of the preceding claims, characterized in that the rigid cup-shaped element is manufactured from plastic or metal or a combination of said materials.

18. The device according to any one or more of the preceding claims, characterized in that the rigid cup-shaped element (3) has a sealing element (4) between the membrane (2) and the closed bottom, such as a disc or analog.

19. Device according to claim 18, characterized in that the sealing element is pre-mounted in the inner bottom of the rigid cup-shaped element (3).

20. The device according to any one or more of the preceding claims, characterized in that the rigid cup-shaped element (3) has at least one hole (9) formed in its closed bottom, which is defined by a transparent wall ( 8) Tightly closed and extending over part or the entire surface of the base.

21. The device according to claim 20, characterized in that the transparent wall element (8) for tightly closing the hole (9) also serves as a seal and is sealed by gluing or welding or other chemical and/or physical bonding. Arrangements are made to fix the rigid cup-shaped element (3).

22. The device according to any one or more of the preceding claims, characterized in that the rigid cup-shaped element (3) has a sealing ring connected to its opening edge, the sealing ring being fixed to the rigid cup-shaped element by a tear line For the remaining part of (3), the tear line is torn with a predetermined breaking force, and, by elastically installing the sealing ring on the container, or shrinking the sealing ring on the opening of the container (1), it is connected with the container (1) At least one retaining shoulder at a predetermined axial distance from the edge of the opening of the opening mates to provide a snap fit.

23. The device according to any one or more of the preceding claims, characterized in that when the rigid cup-shaped element (3) is mounted on the opening of the container (1), it extends beyond the freedom of the container (1) The rim is of a certain degree so as to form a carafe or cup-shaped element (301).

24. Device as claimed in claim 23, characterized in that the stretched part (30) of the rigid cup-shaped element (3) is shaped and its diameter makes its free edge substantially adjoin or press against the adhered container (1 ) on the outer surface.

25. A device as claimed in claim 23 or 24, characterized in that the extension (30) is made of a single piece with a rigid cup-shaped element (3).

26. A device as claimed in claim 23 or 24, characterized in that the end (30) of the skirt wall associated with the rigid cup-shaped element (3) has a shape complementary to said rigid cup-shaped element (3) (34), whereby said ends form a closed cup base of such dimensions as to be forcibly mounted on and/or joined to the rigid cup-shaped element (3) by means of chemical and/or physical adhesive arrangements.

27. Device as described in one or more of the preceding claims 23 to 26, characterized in that the free edge of the skirt wall (30) forms an extension of the rigid cup-shaped element (3), shaped like the container (1) The free edge of the skirt wall (30) is covered and protected by a label (32) which partially overlaps with a part of the wall of the container (1) and said extension (30).

28. The device according to any one or more of the preceding claims, characterized in that a plate, disc (33) or similar is arranged outside the closed bottom of the rigid cup-shaped element (3) for forming a carafe The base of (30) preferably has a diameter greater than the diameter of the rigid cup-shaped element (3).

29. The device according to any one or more of the preceding claims, characterized in that the rigid cup-shaped element (3) has a sealing end ring (36) which runs along the rigid cup The free edge of the open side of the cup-shaped element (3) is stretched, and the sealing end ring (36) is separated from the rest of the rigid cup-shaped element (3) by a tear line that requires a predetermined breaking force to tear , and the sealing end ring (36) is designed to engage by snap engagement and/or crimping with a continuous or discontinuous outer radial annular shoulder (35) of the container (1) at a certain distance from the edge of the mouth distance, so that when the container is fully closed, the ring (35) engages on the container, while the extended portion of the rigid cup-shaped element (3) forming a glass-like shape stretches towards the bottom of the container (1), with its extended shape and axis The lengthwise direction causes this part to rest on and beyond the seal ring (32) and create a small annular gap with the container wall to prevent hands or other tools from reaching the seal ring (35) itself.

30. Device according to any one or more of the preceding claims, characterized in that a carafe element (31) is provided whose shape is complementary to the bottom of the container (1) and which allows Connected to the bottom of the container (1), the skirt wall of the carafe element (31) has such a length that a label (32) is placed at least along the end of the free edge of the carafe element (31) on said free edge.

31. The device according to any one or more of the preceding claims, characterized in that it has a carafe element (30) associated with a rigid cup-shaped element (3), and a bottom of the container (1) The glass bottle elements (31), the free edges of both glass bottle elements are covered by the label (32) of the container.

33. A method for manufacturing a metal truncated Erlenmeyer flask cap as claimed in one or more of claims 1 to 6, characterized in that the steps of the method are:

Firmly fix the rigid cup-shaped element (3) from the side opposite to the open side closed by the diaphragm (2), preferably by means of an electromagnet (37) connected from the outside of the closed side to the The rigid cup-shaped element (3) of the bottle cap contacts;

Along the axis of said rigid cup-shaped element (3) and/or cylindrical hole, the rigid cup-shaped element (3) is pushed into a cylindrical hole or orifice having an appropriate diameter, and the stretchable plastic membrane (2) is appropriate way to the opening of the hole,

When passing the diaphragm (2) through the cylindrical hole and/or through the cylindrical hole, the diaphragm (2) is stretched by means of the free edge of the rigid cup-shaped element (3), due to its internal transverse stress, the diaphragm (2) forms a rotation parabolic shape,

Apply the same pressure to the rigid cup-shaped element on the diaphragm (2) to cut the diaphragm (2) around the rigid cup-shaped element (3), for example with a sharp circular blade (38) placed At a distance from and behind the hole, an annular blade (38) hangs and is integral with the inside of the cylindrical hole, having a diameter greater than the outer diameter of the rigid cup-shaped element (3) and smaller than the diameter of the cylindrical hole,

Wherein, due to transverse elastic stresses produced by longitudinally stretching the extensible plastic polymer, the edge excised from the diaphragm (2) shrinks around the outer surface of the free edge of the rigid cup-shaped element (3), and its diameter becomes smaller than that of the truncated cone The maximum diameter of the rigid cup-shaped element (3) and ultimately locks in place.

34. The method for manufacturing composite bottle caps as claimed in claim 11, characterized in that a diaphragm disc (2) with a diameter larger than the inner diameter of the bottle cap (3) is first manufactured so as to be adhered coaxially by means of a vacuum On the closed and suitably perforated bottom of the hollow cylinder (21), the inside diameter of which is smaller than the inside diameter of the bottle cap (3), in order to force entry into the bottle cap ( 3) and adhered thereto, said portion of the diaphragm disc extends beyond the diameter of the cylinder (21) along the cylindrical portion and is close to the free edge of the bottle cap (3).

35. A method according to claim 34, characterized in that the hollow cylinder (21) is replaced by a hollow truncated cone with a closed bottom, this bottom of smaller diameter being suitably perforated.

36. A device or tool for implementing the method as claimed in claim 34, characterized in that it consists of a combined cylinder (21), i.e. consists of several parts, and the outer diameter of the combined cylinder (21) is less than The inner diameter of the bottle cap (3), the combined cylinder (21) is divided longitudinally into at least two sectors (27) with an angular width of 180°, which are hollow and equal, have a closed bottom, and are passed through a suitable arrangement Pneumatic cam actuators between the two sectors (27), for example, pistons (28) and cylinders (28bis), are spread laterally, or by means of inflatable bags, and can be drawn closer by means of suitable springs. A sector, the spring is for example a spring ring surrounding the sector of the combined cylinder (21) on the outside and on the inside.

37. Apparatus according to claim 36, characterized in that each hollow sector of the cylinder (21) is kept under vacuum and has at least one hole in its closed bottom to communicate with its inner cavity.

38. Apparatus according to claim 36 or 37, characterized in that it has mechanical drive means in order to achieve the step of grasping the diaphragm disc (2) and introducing it into the rigid cup-shaped cup-shaped element (3) and then tightly against the inner cylindrical portion of the rigid cup-shaped element (3) to compress a portion of the diaphragm disc beyond the diameter of the cylinder (21) to provide adhesion.

39. A method for manufacturing a bottle cap as claimed in claim 11, characterized in that first the opening side of the rigid cup-shaped element (3) is flared by means of a conical wedge (14), and then by means of a flat head round The cylinder (15) flattens it, while the rigid cup-shaped element (3) is held in a correspondingly shaped housing (16) by means of vacuum (20), and the diaphragm disc (2) is placed in any suitable manner relative to the circular In the plane of the part of the cylinder axis bent by 90°, the flattened edge on which the membrane (2) is located is returned to its original position by a first step of bending backwards, followed by a suitable roller (17) and the opposite roller ( 18) to straighten the flattened edges by rolling and/or coaxial pressure using the conical sectors (19) joined to form a kind of mandrel.

40. The method as claimed in claim 34 or 39 for the manufacture of a composite bottle cap as claimed in claim 11, characterized in that, on the rectangular or trapezoidal surface delimited by the cutout (12), flaring, The step of flattening, installing the diaphragm disc (2) and subsequent restoration of the position of the curved portion, the cut (12) is made in the cylindrical wall of the bottle cap (3) on which the diaphragm (2) is adhered.

41. The method according to claim 39, characterized in that the step of 90° flaring or flattening the free edge of the cap (3) is achieved by rotational molding the cap (3) of ductile metal.

42. The method as claimed in claim 41, characterized in that metal particles are introduced into a suitable openable mold, and the metal particles are forced to scatter throughout the space in the mold by rotation, and then the method as claimed in claim 41 is carried out. step.