CN109715511A

CN109715511A - Nozzle for food packaging

Info

Publication number: CN109715511A
Application number: CN201780057690.6A
Authority: CN
Inventors: 安德斯·丹尼尔森; 罗伯特·罗斯贝格; 戈兰·约翰逊; 维克托·彼得松; 亨里克·林德伯格
Original assignee: Tetra Laval Holdings and Finance SA
Current assignee: Tetra Laval Holdings and Finance SA
Priority date: 2016-09-20
Filing date: 2017-09-18
Publication date: 2019-05-03
Also published as: WO2018054844A1; EP3296223A1

Abstract

A kind of nozzle (100) of a part for the neck (20) for forming packaging (10), comprising: film (150), with tubular element (110), with main body (112) and the end sections (114) that can be attached to discharging on the film (150).The film (150) includes film flange (170), the film flange (170) has the exterior section (172) extended radially outside in the end sections (114) of the tubular element (110), wherein the film flange (170) further includes interior section (174), wherein the end sections (114) of the tubular part (110) are attached to the film flange (on the interface between 170 interior section (174) and the exterior section (172).The axial width (D2) of the interior section (174) is equal to or less than the axial width (D1) of the exterior section (172).A part of the solution still includes the neck component of the nozzle more early described.

Description

Nozzle for food packaging

Technical field

The present invention relates to a kind of nozzles for food packaging.Particularly, the present invention relates to a kind of nozzles with film, should Film seals the end of the nozzle.

Background technique

Food packaging is usually provided with device for opening, in order to the discharge of the food of encapsulation.Device for opening can be can not Inverse opening that is, once opening packaging cannot close, or can be the device for opening of Reclosable.In order to extend food Shelf-life and quality, the latter are typically desired.The normal method for providing the device for opening of Reclosable is in packaging Top arrangement includes toppling over the threaded neck of nozzle.Threaded neck is designed to make it to can receive lid, and lid is comprising interior Screw thread, so that lid can be backed out from neck.Due to lid covering neck opening nozzle, so encapsulation food be protected and It is not affected by, therefore the quality of product can be kept whithin a period of time.

Although above-mentioned solution provides the improvement to open irreversible opening is remained, the medium of pollution Still it can enter the inside of packaging by neck/lid interface (for example, passing through screw thread).Therefore it has already been proposed that further Improvement, in storage package seal neck opening nozzle.

A solution is described in WO2011144569, wherein nozzle is provided with film.During opening action, i.e., When lid is backed out from neck, the film for being initially connected to nozzle and keeping nozzle completely enclosed is cut from nozzle.

Based on identical general design, WO2013072475 describes a kind of lid and neck component, and neck component, which has, to be used In the film of sealed food packaging.Film is so shaped that it is at an angle of at the outer end towards the inner sidewall of nozzle, to make Resealing for food packaging can be improved when Jiang Gai is screwed on neck by obtaining.

In SE1650567-9, disclose another solution, for nozzle seal again provide it is additional excellent Point.The invention is based on providing a kind of tubular element, and one end is connected on film at the radially inward position of neck sidewall, The tubular element is used to seal the side wall of neck.The free end of tubular element has inclined surface, so as in sealing and/or again Slide film on the inner wall of neck.

Although above-mentioned solution is provided by sufficiently proving to seal again with what is reliably packed, it is recognized that Especially in terms of dissection, i.e., when film is initially unclamped from nozzle by cutting, require further improvement.If film is not correct Cutting, then reseal and will receive negative effect.

Therefore, it is necessary to a kind of nozzle, which makes it possible to enhance and seal again, to remain enclosed within the food in food packaging The quality of product, and extend the shelf-life of food.

Summary of the invention

Therefore, it is an object of the invention to overcome or alleviated by the above problem.

According in a first aspect, the solution is provided by forming the nozzle of a part of the neck of packaging, wherein institute Stating nozzle includes film and tubular element, and the tubular element has main body and can be attached to the end sections of the film with discharging. The film includes film flange, which has exterior section, outer radial of the exterior section in the end sections of tubular element Extend.The thickness of end sections is less than the thickness of adjacent main body, and wherein the axial length of end sections is between the outer of film flange Between the 15%-65% of the axial width of portion part.

In an embodiment of nozzle, the axial length of end sections can be between the axial direction of the exterior section of film flange Between the 20%-50% of thickness.

In the another embodiment of nozzle, film flange can also include interior section, wherein the end of tubular element Portion part can be attached to the interface between the interior section and exterior section of film flange, and wherein the axial width of interior section can To be equal to or less than the axial width of exterior section.

In yet another embodiment, the inner surface of the interior section of film flange is arranged in the exterior section from film flange The certain axial distance in surface.

In yet another embodiment, the inner surface of the exterior section of the inner surface of the interior section of film flange and film flange can To be parallel.

In the another embodiment of nozzle, outside the exterior section of the outer surface and film flange of the interior section of film flange Surface can coincide with one another.

This solution is a kind of nozzle of a part of neck for forming packaging according to another aspect, wherein the spray Mouth includes film and tubular element, the end sections that the tubular element has main body and can be attached to discharging on the film. The film includes film flange, and the film flange has the exterior section extended radially outside in the end of the tubular element, Wherein the film flange further includes interior section, wherein the end sections of the tubular element are attached to the film flange Interface between the interior section and the exterior section.Here, the axial width of the interior section is equal to or less than institute State the axial width of exterior section.In an embodiment of nozzle, the inner surface of the interior section of the film flange can be with cloth Set the certain axial distance of inner surface in the exterior section from film flange.

In another embodiment, the exterior section of the inner surface of the interior section of the film flange and the film flange Inner surface can be parallel.In yet another embodiment, the outer surface of the interior section of the film flange and the film flange The outer surface of exterior section can be overlapped.In the another embodiment of nozzle, the film may also include central disc component With outer annular disk component, wherein the outer annular disk component can be arranged radially at the film flange and the central disc structure Between part.

In another embodiment, the film includes the sealing lip being projected into tubular element, and wherein sealing lip is from axial direction Position extends, which is arranged at a certain distance from the axial end position from the end sections of tubular element.

Finally, the last one aspect of the solution is neck component comprising above-mentioned nozzle and lid, wherein The lid is configured to valve nozzles.Here, the lid includes at least one cutting element, which is configured to nozzle Film separated with tubular element, the outer radius of wherein at least one cutting element corresponds to the outer radius of sealing lip.

Detailed description of the invention

The above and other purposes of the present invention, feature and advantage will refer to appended attached drawing, through the invention preferred The following illustrative and unrestricted detailed description of embodiment is better understood, in which:

Fig. 1 is the schematic diagram according to the packaging with nozzle of an embodiment；

Fig. 2 a is the cross-sectional view according to the lid of various embodiments being used together with nozzle；

Fig. 2 b is the cross-sectional view according to the neck including nozzle of an embodiment；

Fig. 2 c is the top view according to the cutting element for separating film with neck of an embodiment；

Fig. 3-Fig. 6 is the cross-sectional view of the component including neck and lid during valve nozzles；

Fig. 7 a is the cross-sectional view according to the nozzle of an embodiment；And

Fig. 7 b is the enlarged view of the part of nozzle shown in Fig. 7 a.

Specific embodiment

With reference to Fig. 1, it is schematically shown that the example of food packaging 10.Food packaging 10 has to be formed by main part 11 Bottle shape, main part 11 can be preferably by paperboard substrate pressing plate and the top section that can preferably be made of plastics 12 are made.Top section 12 is provided with the neck 20 to form the top of plastic top part 12.Neck 20 can be with top section 12 are integrally formed, and the entire top section 12 including neck 20 is allowed to be manufactured to single-piece.

Lid 30 is arranged on neck, for sealing the nozzle 100 for forming the upper end of neck 20 (see, for example, Fig. 2 b).Lid 30 It is optionally provided with anti-theft ring 40, as known in the art.

The tubular body that extends between ends can be opened at two by forming sleeve by paperboard substrate pressing plate first to make Make packaging 10.Before sleeve forming, later or with sleeve forming in the second step concurrently carried out, plastic top part 12 It is manufactured by molding.As shown in Figure 1, plastic top part 12 may include being arranged in 20 lower section of neck and being subsequently attached to tubulose The shoulder regions 13 of body.Therefore shoulder regions 13 are arranged to be formed the basic sleeve connection of main part 11 to neck 20. Neck 20 is preferably provided with screw thread, and screw thread is used to engage with the respective threaded for the lid 30 for including anti-theft ring 40.As previously mentioned, neck Portion 20 and shoulder regions 13 can be set to single-piece, or be designed to two components being individually molded together.

After lid 30 is screwed on top section 12, sleeve is filled with food content object.Preferably, this is by by sleeve It is turned upside down with 12 component of top section to complete, so that the remaining of sleeve opens end upward.It after filling, can be by sleeve Opening end seal and be folded into it is flat, as shown in Figure 1.

Alternatively, lid 30 is screwed on top section 12 after packing 10.This can be such as setting of neck 20 Have sealing neck 20 nozzle 100 film 150 (see Fig. 2 b and after) situation, this will be described in greater detail below.

Turning now to Fig. 2 a and Fig. 2 b, the details of neck 20 and lid 30 will be described with.Lid 30 including anti-theft ring 40 It shows in fig. 2 a.Lid 30 has the low portion 31 for being provided with internal screw thread 32.Screw thread 32 is configured to spiral shell corresponding to neck 20 Line 22 (see, for example, Fig. 2 b) engagement.Low portion 31 extends in the upper part 33 to form the closed upper end of lid 30.Top The device of part 33 being internally provided with for film 150 to be separated to nozzle 100 and is used for the film 150 under keeping cutting.

For this purpose, cutting element 50 is arranged along screw thread 32.The purposes of cutting element or pocket knife 50 is penetrate nozzle 100 tight The section of the lower section of adjacent film 150, to separate film 150 and the remainder of nozzle 100.After this step, cutting element 50 play the axial position being fixed on film 150 between the inside at the top of cutting element 50 and upper part 33 (i.e. along figure The A axis of 2A) effect.This will reduce the amount of the rubbish generated, but technical reason is that film 150 rises when salable closure again Important role is arrived.There are multiple cutting elements 50 to be distributed in around upper part 33.It is five in the present embodiment.It cuts The quantity for cutting element 50 depends on Multiple factors, and a key factor is the rising of screw thread 32.It is cut when backing out lid 30 dynamic Work occurs, and cutting element 50 will follow the spinning movement and its axial movement of lid 30, is relative to the progress of neck 20.

Which imply cutting actions or more common " removing action ", it is necessary to complete in certain corner, because otherwise Cutting element 50 can be moved on to the place for reaching region to be cut by axial movement.

Therefore, screw thread rise more sharply, it is necessary to more cutting elements 50.On the other hand, it is backed out when 30 first time of lid When coming, each cutting element 50 can generate twisting resistance, and in order to which open torque is reduced to acceptable degree, have too many Cutting element 50 is unadvisable.Therefore, the present embodiment has used five cutting elements 50, but is derived by technical staff Suitable quantity out.In general,

One cutting element 50 is enough to execute cutting action to separate film 150 with nozzle 100.However,

It has been found that at least need three cutting elements 50 execute cutting action and from nozzle 100 cut lower film 150 it Afterwards, 150 holding of film acts.

Stopping element 60 is arranged in the axial positions roughly the same with cutting element 50.

In the present embodiment, stopping element 60 (is extended downwardly into from the top of upper part 33 specific by stop lug Axial position and the flange for extending radially inwardly small distance) it realizes.It should be noted that in the context of the present specification, owning The reference of " axial direction " or " radial direction " should be interpreted as shown in the dotted arrow in Fig. 2 a.Alphabetical " A " table of axial direction Show, and radial direction is indicated with alphabetical " R ".

5 stop lugs 60 are shared in the present embodiment and their size is able to cooperate film 150 therebetween. The purposes of stopping element 60 is the position under lid 30 is screwed on neck 20 too by (that is, along closing direction) in order to prevent, and thereby Prevent the damage during the application of lid 30 or when the salable closure again after being initially opened to film 150.The stopping element of lid 30 60 cooperate (see Fig. 2 b) with the opposing elements 24 of neck 20.In this embodiment, opposing elements 24 are expressed as radially outward prolonging The shoulder stretched.

For preventing lid 30 from further rotating when it reaches a certain position on neck 20, there are also other methods.Example packet The different stop devices on screw thread 32 are included, can be the solid block in the end of the screw thread 22 of neck 20, screw thread 32 cannot The change in terms of the rising of the screw thread 22 of the solid block or neck 20 is covered, further rotating for lid 30 is prevented.Have more Option is available.Solution used in the present embodiment be it is simple, direct, do not involve lid 30 or neck 20 any other Operation part and foreseeable, direct and different stop is provided.

The example of cutting element 50 is further shown in detail in figure 2 c.In the figure, cutting element 50 shows from top Out.As best seen in, cutting element 50 in fig. 2 a shown in axial positions be attached to the inner periphery of lid 30.Important It is that cutting element 50 is enable to pivot by means of connecting with the hinge of the inner periphery of lid 30.In this embodiment, hinge connects It is realized by the reduced thickness at the region of the inner periphery close to lid 30 52.

Region 54 is the cutting region of cutting element 50, and the thickness of cutting element 50 reduces to be formed in this region Cutting edge 54.Cutting edge 54 can be linear, as in the present embodiment.

Free end 56 far from hinged attachment can be preferred that blunt, and can preferably be not so good as 54 cutting edge of a knife or a sword of cutting region Benefit.The result is that free end 56 is hardly damaged when the join domain between film 150 and the rest part of nozzle 100 should not damage The benefit of the join domain.This can for example be important when being arranged on nozzle 100 30 first time of lid.

Turning now to Fig. 3-Fig. 6, the description of the engagement between lid 30 and neck 20 will be provided.

Since Fig. 3, lid 30 is screwed on neck 20 (i.e. when film 150 is attached to neck 20) for the first time.As according to Fig. 3 institute energy Understand, when backing out lid 30 from neck 20, cutting element 50 will be bent downwardly, and thus cutting element 50 will be pushed inwardly It is dynamic, so that film 150 be cut from neck 20.

Preferably, cutting element 50 is made to be in clear position, wherein they are projected on the radially outer part of film 150, More specifically, the free end of cutting element 50 extends beyond the circumferential edges of film 150.Therefore, in lid 30 completely from neck 20 After backing out, film 150 is maintained in lid 30 by cutting element 50.

Turning now to Fig. 4-Fig. 6, the closing sequence of lid and neck component is shown.Before such sequence, it is assumed that lid 30 back out from neck 20, so that film 150 is separated with neck 20.

Since Fig. 4, lid 30 has been screwed on neck 20.Since cutting element 50 initially keeps film 150, however work as film When the opening nozzle of 150 arrival necks 20, cutting element 50 will be detached from film 150.Therefore, as shown in figure 4, film 150 will be shelved On nozzle 100, simultaneously because providing screw thread, lid 30 is mobile to neck lower part, to convert rotational motion into vertical motion.

In Fig. 4, the closing end in contact of film 150 its upside and lid 30, and its downside is shelved on the open nozzles of neck 20 On 100.

When lid 400 is further screwed down, as shown in figure 5, the closed end of lid 30 will interact with film 150.Therefore, Film 150 will be bent so that its diameter increases, thus medial movement of the sealing lip 160 of film 150 towards nozzle 100.

Process continuation when lid 30 is further rotated down along neck 20.In Fig. 6, lid 30 is firmly screwed to neck 20 On, and film 150 has been subjected to the bending increased.Therefore, sealing lip 160 is pushed radially outwardly, until it contacts neck 20 Nozzle 100 inner wall.Meanwhile the upper end of nozzle 100 is engaged with film flange 170, so that film 150 is locked in desired sealing Position.Therefore, film 150 seals the nozzle 100 of neck 20, prevent external environment is from influencing to be encapsulated in equipped with neck nozzle Food in the packaging of 100 (including film 150 and lids 30).

Turning now to Fig. 7, the details of nozzle 100 will be described.As previously mentioned, nozzle 100 is defined as the top of neck 20, Pack content is discharged by the top.Therefore before opening packaging, nozzle 100 includes film 150, but is once opened, film 150 just separate with nozzle 100.In Fig. 7, nozzle 100 is displayed on before opening packaging, i.e., film 150 forms the one of nozzle 100 Part.As shown in the dotted line frame in Fig. 7, nozzle 100 forms the top of neck 20, and the top is substantially since shoulder 24 and upward Extend.

Nozzle 100 is by since the shoulder 24 of neck and the tubular element 110 that upwardly extends is formed.Tubular element 110 has There are main body 112 and upper part 114, upper part 114 is connect with film 150.During opening, the cutting element 50 of lid 30 will be cut The upper part 114 of nozzle 100 is worn, so that film 150 is separated with the main body 112 of tubular element 110.

The film 150 for forming the round sealed part of nozzle 100 includes central disc component 152 and outer annular disk component 154. Outer annular disk component is arranged radially between central disc component 152 and film flange 170.

It can be seen from fig 7a that outer annular disk component 154 is connected to central disc component 152, and film with angle [alpha] Flange 170 is connected to outer ring disk component 154 with angle beta.These angles facilitate the bending of the film 150 during resealing, So that the entire diameter of film 150 can with angle [alpha], β due at the center of film 150 downward push act on and increase and increase. When the diameter of film 150 increases in this way, sealing lip 160 will be pushed to the inner sidewall of the main body 112 of tubular element 110.In the free time Position, does not apply downward power to film 150, and sealing lip 160 is to be downwardly projected.

In fig.7b, the connection between tubular element 110 and film 150 is illustrated in greater detail.Film flange 170 is by tubulose The part of the two adjoinings of the exterior section 172 extended radially outside and interior section 174 of the end sections 114 of component 110 It is formed.The end sections 114 of tubular element 110 are attached between the interior section 174 of film flange 170 and exterior section 172 Interface.

The end sections 114 of tubular element 110 have certain axial length L 1.Axial length L 1 is for example defined as making The distance of substantially invariable thickness is presented in the topmost portion for obtaining tubular element 110.Therefore, although main body 112 towards end 114 by Gradual change is thin, but axial length L 1 does not include this taper portion.On the other hand, axial length L 1 is also defined such that pipe Certain thickness distance is presented in the topmost portion of shape component 110, which is less than primary tubular member 110 and is in so that in film 150 The thickness at the position of the outlet of neck 20 is formed when separating with tubular element 110.In addition, axial length L 1 can also be defined as So that certain thickness distance is presented in the topmost portion of tubular element 110, which is in primary tubular member 110 so that in film Certain percentage (such as, the 20- of thickness at the position of 150 outlets for forming neck 20 when separating with tubular element 110 60%) in.In order to provide some general values suitable for liquid food packing, for example, the axial length L 1 of end sections 114 can To be in the range of 0.1-0.4 millimeters.

Radially extending direction changes the axial width of film flange 170.As can be seen that exterior section 172 from Fig. 7 b With specific axial width D1, it is equal to or more than the thickness D2 of interior section 174.Specifically, the axial direction of end sections 114 Length L1 should be in the range of the 15-65% of the axial width D1 of the exterior section 172 of film flange 170, preferably in 20- In the range of 50%.It is surprisingly proved that, this ratio between axial length L 1 and axial width D1 makes with formation Plastics protrusion quantity reduce and can preferably seal again.Otherwise, such plastics protrusion may make it more difficult to close again to carry out Envelope, especially if they are with arranged at right angles.

As previously mentioned, the axial width D2 of the interior section 174 of film flange 170 is equal to or less than the outside of film flange 170 The axial width D1 of part 172.As shown in Figure 7b, the outer surface 175a of the interior section 174 of film flange 170 and film flange 170 Exterior section 172 outer surface 173a be overlapped.This means that the inner surface 175b of the interior section 174 of film flange 170 is arranged In the certain axial distance of inner surface 173b of the exterior section 172 from film flange 170.These inner surfaces 173b, 175b can be with It is parallel, and the free height H1 for the axial distance being defined as between inner surface 173b and inner surface 175b should be always Positive value or zero.This means that the inner surface 175b of interior section 174 is always in same with the inner surface 173b of interior section 172 It is horizontal or above it.The construction of free height H1 is surprisingly proved that so that cutting element 50 is easier to penetrate, and it Reduce the risk for making 50 warpage of cutting element or deformation during penetrating.

Sealing lip 160 is projecting downwardly into tubular element 110.Sealing lip 160 prolongs from the inner surface 175b of interior section 174 It stretches, i.e., extends from axial position, which is arranged at a certain distance from the axial end position away from end sections 114.It is close The outer radius R1 of envelope lip 160 is preferably chosen to correspond to the outer radius R2 of the cutting element 50 of lid 30 (shown in Fig. 6).Here We are from the line A at the center for passing through lid 30 and nozzle 20 along radial direction R towards the most appearance of sealing lip and cutting element 50 Face measures outer radius R1 and R2.This is particularly advantageous, because a fact is that it makes it possible to more completely separate, and it makes Cutting element 50 can serve as wedge during film 150 separates.

Although having carried out foregoing description by reference to food packaging, it should be readily understood that the general original of neck and lid Reason can be applied to the packaging with device for opening of all kinds.

In addition, the several embodiments of Primary Reference describe the present invention.However, as skilled addressee readily understands that , other embodiments other than embodiments disclosed above equally can be in this hair being defined by the following claims In bright range.

All "upper" referred to, "lower", " upward ", " downward " etc. are made both for upright packaging.

Claims

1. a kind of nozzle (100) of a part for the neck (20) for forming packaging (10) comprising:

Film (150), and

Tubular element (110), with main body (112) and the end sections that can be attached to discharging on the film (150) (114),

The film (150) includes film flange (170), and the film flange (170) has at the end of the tubular element (110) The exterior section (172) of portion part (114) extended radially outside, wherein

The film flange (170) further includes interior section (174), and the end sections (114) of the tubular part (110) are attached Be connected to the film flange (on the interface between 170 interior section (174) and the exterior section (172),

It is characterized in that

The axial width (D2) of the interior section (174) is equal to or less than the axial width (D1) of the exterior section (172).

2. nozzle (100) according to claim 1, wherein the film flange (170) further includes interior section (174), institute State tubular element (110) the end sections (114) be attached to the film flange (170) the interior section (174) and Interface between the exterior section (172), wherein the axial width (D2) of the interior section (174) is equal to or less than The axial width (D1) of the exterior section (172).

3. nozzle (100) according to claim 2, wherein the interior section (174) of the film flange (170) is interior Surface (175b) is arranged in inner surface (173b) axial distance of the exterior section (172) from the film flange (170) (H1) at.

4. nozzle (100) according to claim 3, wherein the institute of the interior section (174) of the film flange (170) It is parallel that inner surface (175b), which is stated, with the inner surface (173b) of the exterior section (172) of the film flange (170).

5. nozzle (100) according to any one of claim 3 to 4, wherein the inside portion of the film flange (170) The outer surface (175a) of (174) and the outer surface (173a) of the exterior section (172) of the film flange (170) is divided to be overlapped.

6. nozzle (100) according to any one of the preceding claims, wherein the film (150) further includes central disc structure Part (152) and outer annular disk component (154), the outer annular disk component (154) are arranged radially at the film flange (170) Between the central disc component (152).

7. nozzle (100) according to any one of the preceding claims, wherein the film (150) includes being projected into the pipe Sealing lip (160) in shape component (110), wherein the sealing lip (160) is from the institute being arranged in from the tubular element (110) The axial position at the axial end position distance (H1) of end sections (114) is stated to extend.

8. nozzle (100) according to any one of the preceding claims, wherein the thickness of the end sections (114) is small In the thickness of the adjacent main body (112), and wherein,

The exterior section (172) of the axial length (L1) of the end sections (114) between the film flange (170) The axial width (D1) 15%-65% between.

9. nozzle (100) according to any one of the preceding claims, wherein the axial direction of the end sections (114) Length (L1) between the 20%-50% of the axial width (D1) of the exterior section (172) of the film flange (170) it Between.

10. a kind of neck component comprising nozzle (100) according to claim 1 and lid (30), the lid (30) is by structure It causes to close the nozzle (100), wherein the lid (30) includes at least one cutting element (50), the cutting element (50) Be configured to separate the film (150) with the tubular element (110) of the nozzle (100), wherein it is described at least one The outer radius of cutting element (50) corresponds to the outer radius of the sealing lip (160).