EP2307303A1

EP2307303A1 - Transport section for conveying caps or similar closures for closing bottles or similar containers

Info

Publication number: EP2307303A1
Application number: EP09776748A
Authority: EP
Inventors: Hartmut Evers
Original assignee: KHS GmbH
Current assignee: KHS GmbH
Priority date: 2008-07-31
Filing date: 2009-06-17
Publication date: 2011-04-13
Anticipated expiration: 2029-06-17
Also published as: WO2010012334A1; DE102008035605A1; PL2307303T3; DE102008035605B4; US20110138740A1; EP2307303B1; US8931239B2

Abstract

On a transport or conveyor section for conveying caps or similar closures (2) for bottles or similar containers, and for treating the closures with a treatment medium, for example with at least one sterilization medium, the at least one treatment medium is used at the same time for conveying the closures along the conveyor or transport section (1, 1a).

Description

Transport line for conveying caps or similar closures for closing bottles or similar containers

The invention relates to a transport route according to the preamble of claim 1.

Transport routes, in particular for supplying closures from a supply unit, the u.a. a bunker for receiving a plurality of closures as a disordered amount, to a closure transfer of a closing machine are known in different designs. It is also known (DE 101 45 102 A1) to provide a plurality of treatment stations on the transport route in which the closures are sterilized before they reach the closure transfer of the closing machine. In this known device, the closures or caps introduced into a conveyor channel are pushed close together by a conveyor element formed by a cap wheel in a single-lane capping or capping flow through the conveyor channel and moved past the treatment stations in the form of nozzle stacks. Disadvantage are u.a. the relatively low performance (number of treated or sterilized closures per unit time) and the risk of jamming the closures in the delivery channel.

Also known is a device for sterilizing closures (DE 103 59 392 B3), in which the closures on several, each formed by a circumferentially driven disk floors and on the floors interconnecting inclined planes from top to bottom by a with a treatment chamber acted upon by a disinfection or sterilization medium. This known device is structurally complex, due to a relatively large size and is also severely limited in terms of possible sterilization.

The object of the invention is to show a transport route, which ensures improved delivery at the same time but also improved treatment of the closures at trouble-free operation with a simplified structural design. To solve this problem, a transport path is designed according to claim 1. The transport line according to the invention is a conveyor line and also a treatment line for conveying and treating, in particular for conveying and sterilizing the closures. [0005] At least on one part, and preferably on the larger part of the transport path, the closures are conveyed pneumatically or hydraulically, ie with a gaseous and / or vaporous medium or with a liquid medium which then at least part of the length Transport path or at least one treatment zone formed by this partial length and / or at least one treatment station formed on the transport path of at least one sterilizing medium for sterilizing or disinfecting the closures is formed.

Outside the at least one treatment zone or station, the transport of the closures, unless effected by gravity, is also effected by a hydraulic or pneumatic medium, for example by a sterile gas and / or vapor or liquid medium, e.g. through sterile air.

The inventive construction not only simplifies the transport of the closures along the transport route, but in particular the treatment of the closures with the at least one sterilization medium is substantially intensified by the fact that this sterilization medium effects the transport of the closures or at least substantially contributes to the transport of the closures and thereby inevitably acts intensively on the closures, in particular also such that the closures are rotated or rolled along guide surfaces of the transport path or a closure channel and thus an exposure of the sterilization medium to all areas of the closure exterior. and inner surface is ensured.

Further developments, advantages and applications of the invention will become apparent from the following description of exemplary embodiments and from the figures. In this case, all described and / or illustrated features alone or in any combination are fundamentally the subject of the invention, regardless of their summary in the claims or their dependency. Also, the content of the claims is made an integral part of the description.

The invention is explained in more detail below with reference to the figures of embodiments. Show it: Fig. 1 in a simplified representation of a transport route for caps or similar closures between a supply unit and a capping machine;

[0011] FIG. 2 shows an enlarged partial representation of the transport path of FIG. 1;

FIG. 3 shows a nozzle for treating and transporting the closures; FIG.

[0013] FIG. 4 shows a simplified perspective view of a partial length of a transport route, together with two treatment stations provided on this transport route;

5 is a simplified representation of a view of the transport path of Figure 5 in the direction of arrow X of Figure 4; Fig. 6 u. 7 in each case sections through a closure channel, for example, by a curved section designed as section of the closure channel of the transport path of Figures 4 and 5.

In FIGS. 1 and 2, 1 is a transport path for feeding caps 2 or other closures from a supply unit 3 to a closing machine 4 for closing bottles or the like which are not shown with the caps 2. The supply unit 3 and the Capping machine 4 have the training known in the art. The supply unit 3 is formed in this sense with a bunker for receiving a plurality of caps 2 and with a sorter over which the caps 2 are each successively transferred in a single-lane capping stream to a cage-like capsule channel 5 of the transport path 1, which within an outwardly closed interior 7 of an example tubular housing 6 of the transport path 1 extends.

The cap channel 5 forms an inlet in the region of the supply unit 3 or at the local sorting unit and an outlet in the region of the capping machine 4 or a cap transfer 4.1 there. Starting from the supply unit 3, the cap channel 5 initially has a rectilinear, downwardly extending portion 5.1, anschießend an arcuate section 5.2, then a rectilinear, obliquely downwardly extending section 5.3, then an arcuately curved section 5.1 and afterwards one at the cap transfer 4.1 ending, straight down and formed in a sterile room 8 of the closing machine 5 section 5.5.

Following the course of the cap channel 5, the tubular housing 6, starting from the supply unit 3, also forms a rectilinear vertically downwardly extending section 6.1, a subsequent curved section 6.2, an adjoining obliquely downwardly extending rectilinear housing section 6.3 and thereto then an arcuately curved housing section 6.4, which opens sealed to the environment in the sterile room 8 of the closing machine 4. The cap channel 5 is designed so that in it the caps 2 can be promoted with a certain play and low friction in the conveying direction A of the supply unit 3 to the capping machine 4.

In the area of the housing section 6.3, a distributor tube 9 is provided in the housing interior 7, at a distance below the section 5.3 of the cap channel 5. The distributor tube 9, which extends with its lower end to approximately at the transition between the housing sections 6.3 and 6.4 and is closed at this end, is led out with its upper end in the region of the housing section 6.2 sealed from the housing interior 7 and provided with a coupling piece 10, namely for connection to a conduit 11 for the controlled supply of a pressurized gas and / or vapor sterilization medium ,

The nozzles 12, which are provided distributed in the longitudinal direction of the distribution channel 9 from each other, each consist in the illustrated embodiment of a pipe section 13, which protrudes radially on the cap channel 5 facing the top of the manifold 9 and forming at its a nozzle opening 14 free end in the conveying direction A is curved, so that by the exiting the nozzle openings 14 rays of the steam and / or gaseous sterilization medium or disinfectant, which then fills in the entire housing interior, not only the required sterilization or disinfection of the caps 2 to their entire Areas takes place, but at the same time a conveying effect is exerted on the caps 2 in the conveying direction A. The caps 2 thus reach under the action of gravity on the section 5.1 in the curved section 5.2 and are there from without the constraints of a mechanical transport element by emerging from the nozzle 12 sterilization medium or disinfectant in the conveying direction A terbewegt, up to the section 5.4, from which the caps 2 then again by gravity on the section 5.5 to the cap or lock removal 4.1 arrive.

In order to maintain a high performance of the closing machine 4, i. With a high number of containers or bottles sealed per unit time and thus with a high number of cappers 4 per unit time supplied caps 2 to achieve a reliable sterilization of these caps with high quality, has the transport path 1 or mainly for sterilization of the caps. 2 serving housing section 6.3 a sufficiently long length, for example, a length of 2 - 5 m.

The sterilization medium is fed under pressure, preferably pulse-shaped, wherein the conveying speed of the caps 2 along the cap channel 5 and thus also the exposure time of the sterilization medium or disinfectant on the caps 2 by the pulse repetition frequency and / or pulse intensity of the distribution channel 9 pulse-fed sterilization medium can be controlled.

In order to achieve a defined position of the cap channel 5 within the housing 6 and in particular a defined distance between the nozzles 12 and the cap channel 5, a plurality of the cap channel 5 supporting spacers 15 are provided in the housing interior 7.

In addition to the nozzles 12 on the manifold 9, for example, more nozzles 16 are provided, can be flushed with the example when in operation of the capping 4 of the housing interior 7 with a sterilization or disinfection medium and / or on the during operation of the capping. 4 constantly sterilization medium is introduced into the housing interior 7. For discharging the disinfecting or sterilizing medium, as far as it is not conducted into the sterile room 8 of the closing machine 4, a lock is provided at the end of the transport section 1 adjacent to the closing machine 4. Furthermore, the housing 6 is formed with viewing windows 17, via which the mode of operation of the transport path 1 can be checked and any faults can be detected. Figures 4 and 5 show a simplified representation of a partial length of a conveying or transport path 1a for closures or caps 2 with two in the transport direction A successive treatment stations 18 and 19 aufein a straight section of the transport section 1a in the transport direction A aufein - are provided below the following. In the treatment stations 18 and 19, for example, a treatment or disinfection of the caps 2 by applying cap with a hydrogen peroxide (H2O2) containing disinfectant or sterilization medium, for example, with a hydrogen peroxide in finely divided or vaporized form containing hot gas and / or vapor Medium, for example hot sterile air. In the treatment station 18, the sterilization medium is applied to the entire surface (inner and outer surface) of the caps 2.

In the treatment station 19 then the subsequent activation of the sterilization medium by heat input to remove oxygen radicals from the at least as condensate deposited on the surfaces of the caps 2 sterilization medium or hydrogen peroxide, specifically for sterilizing the caps 2 and for killing of Germinate. The transport path 1a is in turn formed by a cap channel 5a, which in this embodiment consists of an upper plate 20 and a lower plate 21 and a plurality of the cap channel 5a laterally limiting webs 22, which are arranged between the two spaced plates 20 and 21 and are spaced from these plates as well as from each other via spacers 23, so that the cap channel 5a in turn form a particularly accessible for the sterilization media easily accessible cage or lattice-like structure. The partial length of the cap channel 5a shown in FIGS. 4 and 5 consists of an arcuately curved section 5a.1 and of the rectilinear section 5a.2 adjoining it in the transport direction A, on which the treatment stations 18 and 19 are provided.

It is understood that the transport path 1a and the cap channel 5a are housed in the closed environment to the interior 24 of a housing 25, as shown very schematically in Figure 4 for the treatment stations 18 and 19. The transport of the caps 2 along the cap channel 5a is again carried out by blowing, for example with a sterile vapor and / or gaseous medium, preferably with those also for the sterilization of the caps 2 used treatment media, ie with the sterile gas and / or vapor medium and with the hydrogen peroxide-containing sterilization medium.

In detail, the conveying of the caps 2 takes place in such a way that these caps in the conveying direction A in front of the treatment stations 18 and 19 extending portions, in particular in the section 5a.1 of the Kappankanals 5a by a gas and / or vaporous, sterile medium, for example, be conveyed by sterile air, with this gas and / or vaporous sterile medium at the same time a preheating or tempering of the caps 2 can be done so that this then when entering the treatment station 18, a temperature or surface temperature, for example 70 ° C, for example, from 50 ^c C or about 5O ⁰ C with deviations +/- 10 ⁰ C, preferably with deviations between +/- 2 ⁰ C - have 3 ⁰ C.

In the area of the treatment station 18, the conveyance of the caps 2 is then at least supported by the hot, hydrogen peroxide-containing sterilization medium discharged onto the caps 2 in this station. This sterilization medium can also be any other suitable fluid; in particular, in addition to H ₂ O _2, fluids containing peracetic acid or chlorine dioxide are proposed for this purpose. These may be present in an aqueous mixture or ideally be gaseous or vaporous. As a gaseous mixture inert gases or air are to be preferred as further constituents. In one variant of the method, ionizing air or a mixture with ionized air and the abovementioned substances is used as sterilizing agent and driving fluid.

In the area of the treatment station 19, the conveying of the caps 2 is at least supported by the applied on these caps 2 hot sterile vapor and / or gaseous medium for activating the sterilization medium or hydrogen peroxide and for drying the caps 2. In to the Section 5a.2 subsequent sections of the cap channel 5a, the conveying of the caps 2 is carried out with a sterile gas and / or vapor medium, for example at a reduced temperature, eg with cooler sterile air, so as to cool the treated caps 2 on a Achieve temperature well below the treatment temperature, ie to a surface temperature well below 5O ⁰ C, for example, to a surface temperature of 30 ° C or about 30 ⁰ C, before the caps 2 are then fed to a capping machine or its closing tools. By this cooling of the caps 2 is in particular even when made of plastic caps ensures that they have the required quality reproducible after sterilization, in particular the required strength and mechanical stability and therefore it is possible in the subsequent closing process, the desired process parameters, such as the required screw and / or opening torque to achieve reliable for the caps applied to containers or bottles 2 caps.

FIGS. 6 and 7 show various possibilities for applying treatment medium for conveying the caps 2 and for simultaneously treating or sterilizing the caps 2. The cap channel 5a, the plates limiting the cap channel at the top and at the bottom, is shown once again and 21, the webs 22 and the spacer elements 23. The latter consist in the embodiment shown in Figures 6 and 7 respectively of coaxially arranged sleeve-like spacers 26-29, which via a bolt 30 with nut 31 with each other and with the upper plate 20 are braced. For this purpose, the bolt 30 engages with its lower end on a plate-like closure element 23. The spacers 32 provided on the webs 22 are between en spacers 26 - 29 braced.

The spacers 26 - 29 and another provided on the top of the plate 20 spacer 33 form a pin 30 enclosing annular channel 34 which closed at the bottom of its spacer element 23 through the end member 32 and at the top by a corresponding end member 35 is. In the spacers 26-29, nozzle openings 36 are respectively provided for the exit of a gaseous and / or vaporous medium into the cap channel 5a, for example for the exit of a medium used for the sterilization, which at the same time also serves to convey the caps 2 along the cap channel 5a causes. The design of the spacer elements 23 makes it possible to individually adjust the individual nozzle openings 36 by turning the spacers 26-29 in such a way that with these nozzle openings 36 on the one hand the application of the caps 2 passed by the sterilization medium and on the other hand also the conveying effect are optimally achieved. The feeding of the treatment and / or sterilization medium to the annular channel 34 takes place, for example, through connection openings 34. 1 provided in the upper spacer 33. With the two spacers 33 and 26, the respective spacer element 23 is held by clamping on the upper plate 20 in the region of an opening. With 37 nozzle openings are further referred to, via the o-half of the plate 20 formed closed space, for example, within the treatment stations 18 or 19, a gas and / or vapor treatment and / or sterilization medium on the upper portion of the past Caps 2 is applied. Similar nozzle openings 37 are also provided, for example, on the lower plate 21, to act on the pasted caps on their inner surfaces with the treatment and / or sterilization medium.

At 38 in FIG. 7 is designated a nozzle which, like the nozzles 12, consists of a pipe section 39 with a nozzle opening 40 at the end of the pipe section 39. The pipe section 39 of each nozzle 38 opens into a space or channel 41, which is supplied with a gaseous and / or vaporous treatment and / or sterilization medium under pressure during operation of a cap channel 5a having plant or transport path.

It is understood that a multiplicity of spacing elements 23 with the nozzle or outlet openings 36 and / or 37 as well as a plurality of nozzles 38 are provided along the cap channel 5a and that also the one shown in FIGS. 6 and 7 Cap channel 5a, in turn, in a sealed to the environment housing, for example, housed in the housing 25.

The invention has been described above by means of exemplary embodiments. All these exemplary embodiments have in common that the at least one gaseous and / or vaporous treatment and / or sterilization medium also serves to convey the caps 2 along the respective transport path or cap channel 5 or 5a.

LIST OF REFERENCE NUMBERS

1, 1a transport or conveyor line

2 cap

3 supply unit

4 closing machine

4.1 Cap transfer to the capping machine 4

5, 5a cap channel

5.1 - 5.5 cap channel section

5a.1 - 5a.2 cap channel section

6 housing

6.1 - 6.4 Housing section

7 housing interior

8 Sterile room of the capping machine

9 distribution channel

10 clutch

11 line for supplying the treatment or sterilization medium

12 nozzle

13 pipe section

14 nozzle opening

15 spacers

16 nozzle

17 viewing window

18, 19 treatment course

20, 21 plate

22 footbridge

23 spacer element

24 housing interior

25 housing

26 - 29 Spacer

30 bolts

31 mother

32 end piece

33 spacer

34 ring channel

34.1 connection opening

35 end piece 36 nozzle opening

37 opening a plate 20

38 nozzle

39 pipe section

40 nozzle opening

41 channel

A conveying direction

STR jet

Claims

claims

1. Transport or conveying line for conveying caps or similar closures (2) for bottles or similar containers and for treating the closures (2) with at least one treatment medium, for example with at least one sterilizing medium, characterized in that the at least one treatment medium at the same time Conveying the closures (2) along the transport path (1, 1a) is used.

2. Transport path according to claim 1, characterized in that along the transport path a plurality of nozzle openings (14, 36, 37, 40) for discharging the treatment medium to the closures (2) are provided, wherein at least a part of the nozzle openings (14, 36 , 37, 40) for generating at least in each case at least one jet (STR) of the treatment medium is oriented, which has a in the conveying direction (A) facing component.

3. Transport route according to claim 1 or 2, characterized in that it is formed by at least one cage-like closure channel (5, 5 a) in the interior (7, 24) of a in the transport direction (A) extending housing (6, 25) received is.

4. Transport route according to one of the preceding claims, characterized in that the closure channel (5a) for an at least lateral accessibility of the treatment medium laterally only by the closures (2) with slight clearance leading webs (22) is limited.

5. Transport route according to one of the preceding claims, characterized in that the closure channel (5a) for an all-round accessibility of the treatment medium on all sides only by the closures (2) with slight clearance leading webs (22) is limited.

6. Transport route according to one of the preceding claims, characterized in that on the cap channel (5a) at least one treatment station (18, 19) or at least one treatment zone is provided, in which the treatment and / or sterilization medium on the closures (2) and that the transport of the closures (2) outside the at least one treatment station or zone (18, 19) pneumatically or hydraulically, for example, by a gas and / or vapor medium, in particular by a sterile gas and / or vapor medium, for example by sterile air.

7. Transport route according to one of the preceding claims, characterized in that in the conveying direction (A) successively at least two treatment stations (18, 19) are provided, and that in a transport direction (A) first treatment station (18) the closures (2) treated with a first treatment medium, for example in the form of a hydrogen peroxide, ozone or peracetic acid containing gas and / or vapor hot sterilization medium and in relation to the transport direction (A) following treatment station (19) with a second treatment medium, for example with a hot gas - And / or vapor treatment medium for activating the first treatment medium.

8. Transport route according to one of the preceding claims, characterized in that the closures (2) on at least a first partial length of the transport path (1) through the treatment and / or sterilization medium and on at least one further part of the transport path (1, 1a) Gravity and / or promoted by a sterile gas and / or vapor medium.

9. transport route according to claim 8, characterized in that the least a first part length of the transport path (1) makes up the greater part of this transport route.

10. Transport route according to one of the preceding claims, characterized in that it connects a supply unit (3) having a bunker for receiving the closures (2) with a Verschließmasche (4) or a local closure receptacle (4.1).

11. Transport route according to one of the preceding claims, characterized in that the closure channel (5, 5a) has a plurality of closure channel sections (5.1-5.5; 5a1, 5a2) adjoining one another in the conveying direction, specifically a section (11) which adjoins the supply unit (3). 5.1) for conveying the closures under gravity and at least one further section (5.3) for conveying the closures (2). Use of the treatment and / or sterilization medium and a preferably on a closure task (4.1) of a closing machine (4) leading portion (5.5) for conveying the closures under gravity.

12. Transport route according to one of the preceding claims, characterized in that the nozzle openings (14) on at least one at least along a section of the transport path (1) extending manifold (9), for example, at a below the closure channel (5) provided distribution pipe (9 ) are provided.

13. Transport route according to one of the preceding claims, characterized in that the nozzle openings (36) are provided on spacer elements (23), which serve for holding, the closure channel (5a) laterally limiting webs (22).

14. Transport route according to one of the preceding claims, characterized in that the nozzle openings (37) are provided on upper and / or lower end elements, for example on plate or strip-like end elements of the closure channel (5 a).

15. Transport route according to one of the preceding claims, characterized in that at least a part of the nozzle openings (36) are adjustable with respect to the axial direction of the respectively ejected jet.