DE102019125225A1 - Container with a closable container opening, method for producing a container and device for separating a protective section from a container - Google Patents

Abstract

Container (1) with a closable container opening (2), the container opening (2) being formed on a container neck (3) which has a connecting section (7) for connecting the container (1) to a closure element that can be placed on the container opening (2) having an edge of the connecting portion (7) is provided to form an edge of the container opening (2) in the ready-to-use state of the container (1), the container neck (3) in the direction of a longitudinal axis L of the container neck (3) over the connecting portion (7) is also extended by a protective section (9) arranged on a side of the connecting section (7) remote from the container and forming a closure of the container neck (3), as well as a transition section (8) arranged between the connecting section (7) and the protective section (9) ), the transition section (8) being designed in such a way that the protective section (9) extends away from the container (1) along the transition section (8) Is nnbar to obtain a ready-to-use state of the container (1) and to release the connecting portion (7) for placing the closure element.

Description

The present invention relates to a container with a closable container opening, the container opening being formed on a container neck which has a connecting section for connecting the container to a particularly cap-shaped closure element that can be placed on the container opening. The invention also relates to a method for producing such a container and to a device for separating a protective section from such a container.

In the production of containers, in particular plastic containers, for example plastic bottles, the problem often arises that the containers first have to be stored and / or transported after production before they are filled and closed with a closure element. In particular, the sensitive edge around the container opening is exposed to severe stresses and can be damaged or destroyed, for example if the containers are stored en masse in silos after their manufacture.

It is therefore the object of the present invention to effectively protect such a container from damage during storage and transport. Furthermore, a method for producing such a container is to be specified.

This object is achieved with the subject matter of the independent claims. Further embodiments and advantageous refinements are the subject of the subclaims.

According to one aspect of the invention, a container with a closable container opening is specified, the container opening being formed on a container neck which has a connecting section for connecting the container to a, for example cap-shaped, closure element that can be placed on the container opening, an edge of the connecting section being provided, in order to form an edge of the container opening in the ready-to-use state of the container. The container neck is extended in the direction of a longitudinal axis of the container neck beyond the connecting section in order to form a protective section which is arranged on a side of the connecting section remote from the container and which forms a closure of the container neck, as well as a transition section arranged between the connecting section and the protective section.

The transition section is designed in such a way that the protective section can be separated from the container along the transition section in order to obtain a ready-to-use state of the container and, for example, to release the connecting section for placing the closure element.

In these containers, it is accordingly provided that the protective section at a point in time after the manufacture of the container, for example immediately before or after the filling
Container and shortly before the container is closed by means of the closure element to be separated from the container neck. Thus, in particular during the transport and storage of the container, the protective section only serves to protect an edge of the connecting section, which is later to form the edge of the container opening. After the demanding transport or storage, this purpose is fulfilled and the protective section, regardless of whether it was damaged during transport and storage or not, can be separated along the transition section. The protective section thus has the function of intercepting any damage to the container neck.

Thus, the container and in particular its edge is effectively protected from damage after manufacture, without the process of manufacture, storage, transport, filling and closing of the container having to be fundamentally changed, for example by dispensing with storage or transport.

The container opening is determined by a defined sealing diameter, which is later closed by the closure element. The connecting section can be identical to the so-called calibrated zone in the case of containers produced by extrusion blow molding, if the container was produced by means of an extrusion blow molding process.

In particular, the connecting section can have a thread on an outside of the container neck for connecting the container to the closure element. However, the thread can also extend beyond the connecting section in the direction of the container. The connecting section is closed off by the area which, in the ready-to-use state of the container, forms the edge of the container opening on which the closure element can also be placed.

The container has the advantage that complex measures to protect the container edge can be dispensed with. Rather, damage to the container edge during storage or transport is accepted, but this damage is not exposed to the edge of the container opening, which is exposed in the ready-to-use state of the container, but only the protective section that is required to maintain it the ready-to-use state of the container is removed anyway. The protective section can be formed without additional effort during the manufacture of the container, for example in an extrusion blow molding process.

The later removal of the protective section is also relatively simple and can be done, for example, immediately before the container is filled.

According to one embodiment, the protective section has an extension I _s in the direction of the longitudinal axis of the container neck with 3 mm I _s 30 mm.

With such a protective section, it is possible to intercept typical damage to the container during transport or storage and to keep it away from the connecting section. In particular, the extent of the protective section can be 5-15 mm.

According to one embodiment, the connecting section has an extension I _v in the direction of the longitudinal axis of the container neck with 5 mm I _v .

The connecting section can have an inlet slope on its edge. An inlet slope is understood here and in the following to be a circumferential sloping surface on the inside or outside of the container. Typically, such an inlet slope is arranged on the inside of the container and serves to precenter a closure seal.

According to one embodiment of the invention, an outer diameter a of the protective section is greater than an outer diameter g of the connecting section. This embodiment has the advantage that the connecting section is particularly well protected by the protective section. In particular, a wall thickness of the container neck in the area of the protective section can also be greater than in the area of the connecting section in order to stabilize the protective section. However, it can also be advantageous or at least sufficient to choose the outer diameter a of the protective section smaller than or equal to the outer diameter g of the connecting section.

According to one embodiment, the container has at least one circumferential groove in the area of the transition section on an inside and / or an outside. Such a groove, which is formed by a notch formed during the manufacturing process in the inside and / or the outside of the container neck, can fulfill at least two different functions alternatively or simultaneously: on the one hand, the wall thickness of the container neck is reduced in the area of the groove, so that the Container neck can be separated particularly easily in the area of the transition section. On the other hand, such a circumferential groove can be used for centering a, for example, mechanical knife for separating the protective section.

The groove can be positioned opposite the inlet slope or in the area of the inlet slope. However, it can also be arranged wholly or partially on the side of the inlet slope remote from the container or opposite one another. When positioning the groove, care is taken that when the protective section is cut along the groove, the run-in bevel is not completely cut off.

According to one embodiment of the invention, the container has three-dimensional structures that increase friction in the area of the protective section on an inside and / or an outside of the container neck. Such structures can serve to increase the friction of a gripping device when rotating the protective section. Depending on whether the gripper engages on the inside, the outside or on both sides of the container neck, the friction-increasing structures are arranged on the inside, on the outside or on both sides. The structures can in particular have the shape of ribs or saw teeth.

According to one embodiment, the container furthermore has a closure cap which can be placed on the container neck and which likewise has friction-increasing structures on an inside which interact with the structures of the container in such a way that they lock when the closure cap is twisted off.

In this embodiment, the ready-to-use state of the container is only established with its initial opening, when the protective section is twisted off by means of the closure cap. In this embodiment, the protective section can be separated from the rest of the container neck by a circumferential groove, which serves as a predetermined breaking point, in order to enable easier twisting off.

After turning off, the protective section remains in the closure cap in this embodiment.

According to a further aspect of the invention, a method for producing a container with a closable container opening is specified, the method comprising providing a container with a container opening which is formed on a container neck, the container having a connecting section for connecting the Container with a cap-shaped closure element that can be placed on the container, an edge of the connecting section being provided in order to form an edge of the container opening in the ready-to-use state of the container, the container neck being extended in the direction of a longitudinal axis of the container neck beyond the connecting section by to form a protective section which is arranged on a side of the connecting section remote from the container and which forms a closure of the container neck, and a transition section which is arranged between the connecting section and the protective section.

The method further comprises separating the protective section along the transition section from the container in order to obtain a ready-to-use state of the container and to release the connecting section for placing the closure element on.

In this case, the protective section is separated off in particular immediately before the container is filled and closed, but in any case before the closure element is put on and advantageously after the container has been stored and / or transported.

The method has the advantage that the connecting section and thus also the area which forms the edge of the container opening in the ready-to-use state of the container is protected against damage until the protective section is separated.

The container is provided in particular by means of an extrusion blow molding process. However, other manufacturing methods for the container are also conceivable.

The protective section can in particular be severed by means of cutting, in particular by means of mechanical cutting from the outside and / or inside. Alternatively, the protective section can also be severed by means of laser cutting from the outside or the inside, or by means of hot wire cutting.

Alternatively, the protective section can also be severed by twisting it off, in that the protective section is rotated against the connecting section about the longitudinal axis of the container neck. The separation by means of turning can also advantageously be combined with a laser cutting step, the laser cutting then serving to weaken the material in the transition section in order to facilitate subsequent turning.

According to a further aspect of the invention, a device for separating the protective section from the container described is specified, the device comprising means for fixing the device on the container neck and at least one mechanical knife guided on a circular path around a longitudinal axis of the container neck, the knife being removed is adjustable from a longitudinal axis L of the container neck.

The knife can be guided on the inside or outside of the container neck and the fixation of the device can accordingly take place either from the outside or from the inside. The knife can be formed, for example, by a plurality of rotating disks which are arranged along the circumference of the container neck, the center point of the disks in each case being guided on a circular path.

According to an alternative embodiment, a device for separating the protective section from the container described comprises means for fixing the device on the container neck and a device for generating at least one laser beam for separating the protective section and means for guiding the at least one laser beam along the transition section on an inner or inner surface Outside of the container neck.

In this case, too, the laser beam can be guided inside or outside and the fixation takes place accordingly from outside or inside.

The means for guiding the at least one laser beam can be, for example, a mirror or an arrangement of several mirrors, wherein the mirror or mirrors can be designed to rotate in order to guide the laser beam over the entire circumference of the container neck.

According to an alternative embodiment, a device for separating the protective section from the container comprises at least one gripping device for gripping the protective section, the gripping device being set up to separate the protective section by rotating about the longitudinal axis of the container neck.

In this embodiment, the protective section can be gripped from the outside, from the inside or simultaneously from the outside and from the inside.

• 1 zeigt einen Behälter gemäß dem Stand der Technik;
• 2 zeigt einen Behälterrand des Behälters gemäß 1;
• 3 zeigt den Behälterrand gemäß 2 im Längsschnitt;
• 4 zeigt den Behälterrand eines Behälters gemäß einer Ausführungsform der Erfindung im Längsschnitt;
• 5 zeigt einen Bereich des Behälterrands gemäß 4;
• 6 zeigt verschiedene Ausführungsformen eines Behälterhalses im Längsschnitt;
• 7 zeigt eine Vorrichtung zum Abtrennen des Schutzabschnitts gemäß einer ersten Ausführungsform;
• 8 zeigt eine Vorrichtung zum Abtrennen des Schutzabschnitts gemäß einer zweiten Ausführungsform;
• 9 zeigt verschiedene Ausführungsformen eines Behälterhalses mit Schutzabschnitt im Längsschnitt;
• 10 zeigt eine Vorrichtung zum Abtrennen des Schutzabschnitts gemäß einer dritten Ausführungsform;
• 11 zeigt eine Ausführungsform eines Behälterhalses im Längsschnitt;
• 12 zeigt zwei verschiedene Ausführungsformen eines Behälterhalses im Längsschnitt;
• 13 zeigt eine Vorrichtung zum Abtrennen des Schutzabschnitts gemäß einer vierten Ausführungsform;
• 14 zeigt eine Vorrichtung zum Abtrennen des Schutzabschnitts gemäß einer fünften Ausführungsform;
• 15 zeigt eine Vorrichtung zum Abtrennen des Schutzabschnitts gemäß einer sechsten Ausführungsform und
• 16 zeigt eine weitere Ausführungsform des Behälters.

Embodiments of the invention are explained in more detail below with reference to schematic figures.

• 1 Figure 8 shows a prior art container;
• 2 FIG. 11 shows a container edge of the container according to FIG 1 ;
• 3rd shows the container edge according to 2 in longitudinal section;
• 4th shows the container edge of a container according to an embodiment of the invention in longitudinal section;
• 5 FIG. 13 shows a region of the container rim according to FIG 4th ;
• 6th shows various embodiments of a container neck in longitudinal section;
• 7th shows a device for severing the protective portion according to a first embodiment;
• 8th shows a device for severing the protective portion according to a second embodiment;
• 9 shows various embodiments of a container neck with protective section in longitudinal section;
• 10 shows a device for severing the protective portion according to a third embodiment;
• 11 shows an embodiment of a container neck in longitudinal section;
• 12th shows two different embodiments of a container neck in longitudinal section;
• 13th shows a device for severing the protective portion according to a fourth embodiment;
• 14th shows a device for severing the protective portion according to a fifth embodiment;
• 15th FIG. 11 shows a device for severing the protective section according to a sixth embodiment and FIG
• 16 shows a further embodiment of the container.

The well-known container 1 according to 1 is designed as a plastic bottle and is produced in an extrusion blow molding process. It has a container opening in its head area 2 in a container neck 3rd on. The container opening 2 can be closed by a cap-like closure element, not shown, which is placed on the container neck 3rd is put on.

The container neck 3rd is in the 2 and 3rd shown in greater detail. He points on his outside 5 a thread 4th on, which cooperates with a thread of the closure element, not shown, to the closure element with the container 1 connect to. In addition, the container neck has a so-called calibration zone K on its inside, which is formed by the upper section and which interacts with a sealing element of the closure element.

In addition, the upper edge surface has a rather flat characteristic, since the bottle is deflustered (the slug is removed, separated) by a suitable method after blowing.

4th shows a section through the container neck 3rd along the longitudinal axis L of the container neck 3rd according to one embodiment of the invention. In this representation and in the detailed representation of the 5 it can be seen that the neck of the container 3rd divided into several sections. The inside 6th of the container neck 3rd In the embodiment shown, it has a plurality of cylindrical sections which are connected to one another by short, frustoconical sections. Starting from the end near the container 12th of the container neck 3rd the container neck is divided 3rd into a connecting section 7th , in particular for connecting and sealing the container 1 is used with the closure element, in a direction of the longitudinal axis L on the connecting portion 7th subsequent transition section 8th and a protective section adjoining it in turn 9 .

The connecting section 7th , which is also called the calibration section and has the calibrated zone, is formed in the extrusion blow molding process in that a mandrel is inserted into the tube provided for the supply of the blown air in the mouth area of the container before inflation 6th of the container neck 3rd comes into contact and thus the dimensions of the container neck 3rd in this area ("calibrated").

• Die Wandstärke ist im Bereich des Schutzabschnittes am größten und weist im Bereich des Übergangsabschnittes ein Minimum auf. Das hat den Vorteil, dass der Behälterhals 3 im Übergangsabschnitt 8 besonders leicht durchtrennt werden kann.

The ones in the 4th and 5 Shown embodiment of the container neck 3rd has the following features, which according to the invention can be used either in combination, as shown here, or individually:

• The wall thickness is greatest in the area of the protective section and has a minimum in the area of the transition section. This has the advantage that the container neck 3rd in the transition section 8th can be cut through particularly easily.

The outside diameter a of the container neck 3rd in the area of the protection section 9 is larger than the outer diameter g in the area of the connecting portion 7th . This has the advantage that the protective section 9 Can absorb loads particularly well.

In the area of the protection section 9 shows the container neck 3rd on the outside 5 a cylindrical surface with the height b on and on the inside 6th it has a cylindrical surface with the height c where c> b. However, it is also conceivable that c = b or c <b is chosen. In the area of the connecting section 7th shows the container neck 3rd on its inside 6th a cylindrical surface with the diameter e on and in the area of the protective section 9 a cylindrical surface with the diameter f, where e <f applies.

A consequence of the last feature is that in the transition section 8th on the inside 6th of the container neck 3rd an inlet slope 10 is arranged. This is used in the ready-to-use state of the container 1 as a centering aid for a seal arranged on the closure element.

In the embodiment shown is on the outside 5 of the container neck 3rd in the transition section 8th a circumferential groove 11 arranged. The groove 11 serves to reduce the wall thickness in the transition section and thus for easier separation of the protective section 9 . It also has the function of positioning a knife in a cutting process.

Protection section 9 has an extension 15 in the direction of the longitudinal axis L of the container neck 3rd has, wherein in particular 3 mm I _s 20 mm applies. The connecting section 7th has an extension I _v in the direction of the longitudinal axis L of the container neck 3rd has, wherein in particular 5 mm I _v applies.

6th shows three different embodiments of the container neck 3rd which is essentially due to the design of the transition section 8th distinguish. 6a shows a first variant in which the wall thickness is in the area of the transition section 8th is low and in the outside 5 of the container neck 3rd a groove 11 is provided. This embodiment has the advantage that the groove 11 precise centering of a knife for cutting off the protective section 9 and that, in addition, the small wall thickness of the container neck 3rd in the transition section 8th cutting off the protective section 9 further relieved.

6b shows a second variant in which there is no groove 11 in the outside 5 of the container neck 3rd is provided. This embodiment has the advantage that the exact height at which the protective section 9 is separated, can be flexibly adjusted.

6c shows a third variant in which the container neck 3rd in the area of the transition section 8th has a relatively high wall thickness and is therefore particularly stable. For precise centering of a knife is in the outside 5 of the container neck 3rd again a groove 11 intended.

In embodiments that are not shown, alternatively or additionally on the inside 6th of the container neck 3rd in the area of the transition section 8th a groove may be provided. This is particularly advantageous when the protective section 9 is separated from the inside, for example by a laser beam or a mechanical knife.

7th shows a plan view from above of a device 20th to cut off the protective section 9 from the container 1 according to one embodiment of the invention. The device 20th includes a cutting head 21 with several knives 22nd on an outside of the container neck 3rd be attached to the protective section 9 by mechanical cutting from the container neck 3rd to separate. With the knives 22nd it can in particular be rotating disks. The entire cutting head 21 with the knives arranged in it 22nd is in the embodiment shown in the direction of the arrows 25th around the longitudinal axis L of the container neck 3rd turned.

To the container 1 relative to the rotating cutting head 21 to fix, includes the device 20th furthermore a fixing device 23 with a number of fixatives 24 which, in the embodiment shown, can be extended radially outward and to the inside of the container neck 3rd compressible projections are formed. Another embodiment without movable fixing means can be implemented using a static conical mandrel. The fixation supports the inside of the container all around, with a circumferential groove being worked into the mandrel so that the cutting head does not touch metal and has a long service life.

The fixing device 23 is in the container opening 2 inserted and fixed the container 1 during the cutting process. The cutting head 21 is attached to the neck of the container from the outside 3rd attached and thus separates the protective section 9 by cutting from the outside of the container neck 3rd from.

At the device 20th it can in particular be a device in which the cutting head 21 and the fixing device 23 are connected to a single device. However, they can also be designed as separate devices.

In operation, the container 1 with the device 20th merged and the fixing device 23 is in the container opening 2 introduced. Then the fixatives 24 driven outwards and against the inner wall of the container 1 pressed to fix it. Then or at the same time the cutting head is 21 on the neck of the container 3rd put on and the knives 22nd are attached to the neck of the container 3rd drove up. By turning the Cutting head 21 in the direction of the arrows 25th with rotating knives 22nd becomes the protection section 9 severed.

The protective section is cut off in the same way 9 if the cutting is not from the outside, but from the inside of the container 1 takes place, for example with the in 8th device shown 20th .

8th shows an apparatus 20th to cut off the protective section 9 according to a second embodiment. This embodiment differs from that 4th shown in that the cutting does not start from the outside, but from the inside of the container neck 3rd he follows. A modified cutting head is used for this purpose 21 with rotating knives arranged on it 22nd into the container opening 2 inserted and the cutting head 21 rotates in the direction of the arrows 25th around the longitudinal axis L of the container neck 3rd .

The device 20th also has a fixing device in this embodiment 23 on, but according to this embodiment from the outside of the container neck 3rd is applied and several fixatives 24 having on the outside of the container neck 3rd attack. These are also designed as radially movable projections.

9 shows longitudinal sections through various embodiments of a container neck 3rd , the one for separating the protective section 9 is provided by means of laser cutting. The laser cutting can be done from the outside 5 or from the inside 6th of the container neck 3rd respectively. The two in 9 shown embodiments of the container neck 3rd differ in that the embodiment shown on the left is in the transition section 8th a groove 11 in the outside 5 of the container neck 3rd having. The groove 11 has the advantage that the container neck 3rd in the transition section 8th has a particularly small wall thickness and can thus be cut through by means of a relatively low input of energy.

The one on the right in 9 embodiment shown is not a groove 11 provided and the container neck 3rd points in the transition section 8th a constant wall thickness. This embodiment has the advantage that the exact cutting position is flexible and higher tolerances can be set when choosing the laser energy.

One device 20th to cut off the protective section 9 using laser cutting is in 10 shown.

The device 20th has a laser cutting head 29 that goes into the container opening 2 is insertable. The laser cutting head 29 has a device, not shown, for generating a laser beam 28 and a device for guiding the laser beam 28 , in the embodiment shown as a mirror 26th is trained. The laser cutting head 29 and / or the mirror 26th rotates in the direction of the arrows 27 around the longitudinal axis of the container neck 3rd and cuts through the energy input of the laser beam 28 the container neck 3rd at the level of the transition section 8th through and thus separates the protective section 9 from the rest of the container neck 3rd from. There is also a fixing device in this embodiment 23 provided, which in the embodiment shown from the outside of the container neck 3rd attacks.

In an embodiment not shown, a device 20th to cut off the protective section 9 by means of laser cutting, a device for producing an on the outside of the container neck 3rd directed laser beam, which the transition section 8th cuts through from the outside.

11 shows an embodiment of a container neck 3rd in longitudinal section, with the container neck 3rd to cut off the protective section 9 is provided by turning. This is the wall thickness of the container neck 3rd in the transition section 8th by making a groove 11 in the outside 5 of the container neck 3rd reduced, so that for turning off the protective section 9 required torque is reduced. The position of the groove determines the position of the later edge.

• Bei der Ausführungsform gemäß 12a sind die Reibung erhöhende Rippen 30 in einer Außenseite 5 des Behälterhalses 3 im Bereich des Schutzabschnittes 9 vorgesehen.

The 12a and 12b also show longitudinal sections through two different embodiments of a container neck 3rd , the one to cut off the protective section 9 is provided by turning. In the embodiments in 12a and 12b is a difference from the embodiment according to FIG 11 in that on the outside 5 and / or the inside 6th of the protection section 9 Structures that increase friction are provided, structures that increase friction also include structures that produce a form fit:

• In the embodiment according to 12a are the friction-increasing ribs 30th in an outside 5 of the container neck 3rd in the area of the protection section 9 intended.

In the embodiment according to 12b are the friction-increasing ribs 30th on an inside 6th of the container neck 3rd in the area of the protection section 9 intended.

In the embodiment according to 12c are guide channels 31 on an outside 5 of the container neck 3rd in the area of the protection section 9 intended.

In the embodiment according to 12d are such guide channels 31 in the inside 6th of the container neck 3rd in the area of the protection section 9 intended.

The guide channels 31 allow the protective section to be gripped 9 with a linking head, which is in the 12th and 13th is shown in more detail in two embodiments, and the exertion of an axial force, in particular in the direction of the arrow 32 , during the calibration process.

The 13th and 14th show a device 20th to cut off the protective section 9 from the container neck 3rd according to a further embodiment of the invention. The device 20th has a linking head 33 on that in the in 13th embodiment shown from the outside, in the in 14th embodiment shown from the inside on the container neck 3rd attacks and this with gripping devices 34 engages and the protection section 9 by turning around the longitudinal axis L of the container neck 3rd along the transition section 8th from the rest of the container neck 3rd separates.

You can do this in the in 13th embodiment shown as well as in the in 14th Embodiment shown a concurrent counterpart can be used, the protective portion 9 opposite the linking head 33 protects against deformation and also enables controlled removal by clamping.

15th shows a further embodiment of the device 20th , in which the embodiments according to FIGS 13th and 14th are combined and gripping devices 34 both inside and outside on the container neck 3rd attack, with the respective linking heads 33 , 33 ' can be twisted together to create the protective section 9 from the rest of the container neck 3rd to separate. In this embodiment, both linking heads engage 33 or 33 ' in the area of the protection section 9 on and the container 1 can be fixed by means of a device not shown.

16 shows a further embodiment of the container 1 , with a portion of the container neck 3rd is shown in longitudinal section. In this embodiment, the protective section remains 9 after filling the container 1 and after placing a closure cap, not shown, first on the container 1 and is only separated by the closure cap when it is first opened. For this purpose, snap elements grip latching hooks on the inside of the closure cap 35 on the container neck 3rd and thus transmit the information indicated by the arrow when the closure is opened 37 symbolized tensile forces on the protective section 9 that at the groove 11 breaks.
In the in 16 embodiment shown are further indicated by the arrow 36 symbolized torsional forces to remove the protective section 9 provided. These are both on the container 1 as well as arranged on the closure cap interacting entrainment elements.

In this embodiment, the protective section remains 9 after opening the closure in the closure cap and is put back on when the container is turned off later.

List of reference symbols

1

container

2

Container opening

3

Container neck

4th

thread

5

Outside

6th

inside

7th

Connection section

8th

Transition section

9

Protection section

10

Inlet slope

11

Groove

12th

end near the container

20th

contraption

21st

Cutting head

22nd

knife

23

Fixing device

24

fixer

25th

arrow

26th

mirror

27

arrow

28

laser beam

29

Laser cutting head

30th

rib

31

Guide channel

32

arrow

33, 33 '

Linking head

34, 34 '

Gripping device

35

Locking hook

36

arrow

37

arrow

Claims (19)

Container (1) with a closable container opening (2), the container opening (2) being formed on a container neck (3) which has a connecting section (7) for connecting the container (1) to a closure element that can be placed on the container opening (2) having an edge of the connecting portion (7) is provided in order to form an edge of the container opening (2) in the ready-to-use state of the container (1), the container neck (3) in the direction of a longitudinal axis L of the container neck (3) via the connecting portion (7) is also extended by a protective section (9) arranged on a side of the connecting section (7) remote from the container and forming a closure of the container neck (3), as well as a transition section (8) arranged between the connecting section (7) and the protective section (9) ), the transition section (8) being designed in such a way that the protective section (9) extends away from the container (1) along the transition section (8) is separable in order to obtain a ready-to-use state of the container (1). Container (1) Claim 1 , the protective section (9) having an extension I _s in the direction of the longitudinal axis L of the container neck (3), 3 mm I _s 20 mm. Container (1) Claim 1 or 2 , the connecting section (7) having an extension I _v in the direction of the longitudinal axis L of the container neck (3), where 5 mm I _v applies. Container (1) according to one of the Claims 1 to 3rd , wherein the connecting section (7) has an inlet slope (10) on its edge. Container (1) according to one of the Claims 1 to 4th , wherein an outer diameter a of the protective section (9) is greater than an outer diameter g of the connecting section (7). Container (1) according to one of the Claims 1 to 5 wherein the container (1) has at least one circumferential groove (11) on an inside (6) and / or an outside (5) in the region of the transition section (8). Container (1) according to one of the Claims 1 to 6th wherein the container (1) has three-dimensional friction-increasing structures (30, 31) on an inside (6) and / or an outside (5) in the area of the protective section (9). Container (1) Claim 7 The container (1) furthermore has a closure cap which can be placed on the container neck (3) and which also has friction-increasing structures on the inside which interact with the structures of the container (1) in such a way that they lock when the closure cap is twisted off . Method for producing a container (1) with a closable container opening (2), comprising: - Provision of a container (1) with a container opening (2) which is formed on a container neck (3), the container (1) having a connecting section (7) for connecting the container (1) to one on the container opening (2) has attachable closure element, an edge of the connecting section (7) being provided in order to form an edge of the container opening (2) in the ready-to-use state of the container (1), wherein the container neck (3) is extended in the direction of a longitudinal axis L of the container neck (3) beyond the connecting section (7) by a protective section (9) which is arranged on a side of the connecting section (7) remote from the container and forms a closure of the container neck (3) ) and to form a transition section (8) arranged between the connecting section (7) and the protective section (9), - Separation of the protective section (9) along the transition section (8) from the container (1) in order to obtain a ready-to-use state of the container (1) and to release the connecting section (7) for placing the closure element. Procedure according to Claim 9 , wherein the preparation of the container (1) takes place by means of an extrusion blow molding process. Procedure according to Claim 9 or 10 , the protective section (9) being severed by means of cutting. Procedure according to Claim 11 , the protective section (9) being severed from the outside and / or from the inside by means of a mechanical cutter. Procedure according to Claim 11 , the protective section (9) being severed from the outside or from the inside by means of laser cutting. Procedure according to Claim 11 , the protective section (9) being severed by means of hot wire cutting. Procedure according to Claim 11 , the protective section (9) being severed by twisting it off. Device (20) for separating the protective section (9) from the container (1) according to one of the Claims 1 to 8th , the device comprising: - Means (23, 24) for fixing the device (20) on the container neck (3); - At least one mechanical knife (22) guided on a circular path around the longitudinal axis L of the container neck (3), a distance of the knife (22) from a longitudinal axis L of the container neck (3) being adjustable. Device (20) after Claim 16 which comprises a plurality of rotating disks as a knife (22), the center of each disk being guided on a circular path. Device (20) for separating the protective section (9) from the container (1) according to one of the Claims 1 to 8th wherein the device (20) comprises: - means (23, 24) for fixing the device (20) on the container neck (3); - means for generating at least one laser beam (28) for separating the protective section (9), - means (26) for guiding the at least one laser beam (28) along the transition section (8) on an inside (6) or outside (5) of the Container neck (3). Device (20) for separating the protective section (9) from the container (1) according to one of the Claims 1 to 8th , wherein the device (33, 33 ') comprises at least one gripping device (34, 34') for gripping the protective section (9), wherein the gripping device (34, 34 ') is set up to rotate the protective section (9) around the longitudinal axis L off the container neck (3).

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