DK154200B

DK154200B - Apparatus for filling dispensing containers with a liquid or pasty product

Info

Publication number: DK154200B
Application number: DK392983A
Authority: DK
Inventors: Hans-Herbert Trenner
Original assignee: Colgate Palmolive Co
Priority date: 1983-08-29
Filing date: 1983-08-29
Publication date: 1988-10-24
Also published as: DK392983A; DK154200C; DK392983D0

Description

DK 154200 BDK 154200 B

Opfindelsen angår et apparat til at fylde fortrinsvis cylindriske dispenserbeholdere med et flydende eller pastaagtigt produkt, og bestående af en fyldestation med et fylderør, der ved relativ bevægelse i forhold til dispenserbeholderen kan 5 dykke ned i denne, såvel som et i forbindelse med fylderøret stående forkammer, der indeholder produktet.The invention relates to an apparatus for filling preferably cylindrical dispenser containers with a liquid or paste-like product, and comprising a filling station with a filling tube which, in relative movement with respect to the dispenser container, can dive into it, as well as a front chamber standing in connection with the filling tube. that contains the product.

Sådanne fy1deapparater kan være udformet således, at fylderøret dykker ned til bunden af dispenserbeholderen. Disse appa-10 rater er dog meget kostbare og kræver såvel en længere inddyk-ningstakt som også et længere ophold af beholderen i fyldesta-tionens område, indtil den endelige frigivning af den helt fyldte beholder.Such feeding devices may be designed such that the filling tube dives to the bottom of the dispenser container. However, these devices are very expensive and require both a longer immersion rate as well as a longer stay of the container in the filling station area, until the final release of the fully filled container.

15 Ved andre enklere fy1deapparater sænkes fylderøret kun delvis ned i den dispenserbeholder, der skal fyldes med et produkt, således at produktet falder ned på beholderens bund, hvilket medfører en hvirveldannelse og luft indfangning i produktet og dermed til en forringelse af produktet ved oxidering, eller 20 en faseadskillelse.15 In other simpler feeding devices, the filling tube is only partially lowered into the dispenser container to be filled with a product, so that the product falls to the bottom of the container, causing an eddy and air entrapment in the product and thus a deterioration of the product by oxidation, or 20 a phase separation.

Det er den foreliggende opfindelses formål at anvise et apparat af den indledningsvist nævnte art, ved hvilket der uden de hidtidige omkostninger i tilslutning til fremføringen af den 25 beholder, der skal fyldes, til fy1destationen på forholdsvis hurtig måde kan gennemføres en fyldning direkte på beholderens bund og i givet fald en fyldning under overf1adespejlet af det i beholderen fyldte materiale, uden at der opstår hvirvler eller luftlommer i produktet.SUMMARY OF THE INVENTION It is an object of the present invention to provide an apparatus of the kind mentioned in the foregoing, in which without filling the costs associated with the feeding of the container to be filled to the feeding station, a filling can be carried out in a relatively rapid manner directly on the bottom of the container. and, where appropriate, a filling under the surface mirror of the material filled into the container without any swirls or air pockets in the product.

3030

For at tilgodese dette formål er det indledningsvist omtalte apparat ifølge opfindelsen ejendommelig ved det i den kendetegnende del af krav 1 angivne. Herved opnår man efter, at fylderøret er ført ned i dispenserbeholderen, at stemplet ved 35 tilførsel af produkt under tryk trykker teleskoprøret nedad imod returfjederens kraft indtil te 1eskoprøret er ført ned til sin nederste stilling. Ved den nu gennem teleskoprørets åbning begyndende.fy 1dning af beholderen opstår der ingen hvirveldan- 2For the purpose of this purpose, the apparatus of the invention mentioned above is peculiar to that of the characterizing part of claim 1. In this way, after the filling tube has been inserted into the dispenser container, the plunger, upon supply of pressurized product, presses the telescopic tube downwardly against the force of the return spring until the teacup tube is brought down to its lower position. At the beginning of the opening through the opening of the telescopic tube.

DK 154200 BDK 154200 B

neiser eller luftlommer. Denne fyldning kan fra først af foregå ved beholderens bund, men ved styring af den relative bevægelse, der igen trækker fylderøret op fra beholderen, kan der foregå en fyldning under det stadig stigende overflade-5 spejl, således at fylderørets ringflade er hævet i det væsentlige til beholderens top, når fyldningen afsluttes. Dette sikrer en hurtig og fejlfri fyldning og herved undgår man udgifterne og komplikationerne ved lange neddykningstider, når et fylderør er sænket ned til beholderens bund og uden at frem-10 kalde turbulens- og luftlommer, hvilke sidstnævnte fører til oxidering og faseadski11e1 se af produktet.noses or air pockets. This filling may at first take place at the bottom of the container, but by controlling the relative movement which in turn pulls up the filling tube from the container, a filling can take place under the still rising surface mirror, so that the ring surface of the filling tube is substantially raised. to the top of the container when filling is completed. This ensures quick and error-free filling and thereby avoids the expense and complications of long immersion times when a filling tube is lowered to the bottom of the container and without causing turbulence and air pockets, the latter leading to oxidation and phase separation of the product.

For at undgå, at produkt strømmer tilbage til fylderørets hulrum omkring returfjederen, er teleskoprøret i overensstemmelse 15 med det i den kendetegnende del af krav 2 anførte styret tæt-nende i ringpladens åbning. Ved hjælp af de i den kendetegnende del af krav 3 anførte udluftningåbninger sikres, at den i fjederkammeret tilstedeværende luft kan undvige under teleskoprørets forskydning.In order to prevent product from flowing back into the fill tube cavity around the return spring, the telescopic tube is sealed in accordance with the characterizing portion of claim 2 sealed in the ring plate opening. By means of the vent openings specified in the characterizing part of claim 3 it is ensured that the air present in the spring chamber can evade during the displacement of the telescopic tube.

2020

Ved hjælp af det i den kendetegnende del af krav 4 anførte muliggøres ved fyldning af dispenserbeholder med midt i dispenserbeholderens indre anbragt stempelstang en indfangning og styring af den i beholderen stående stempelstang. Denne stem-25 pelstang trænger delvis ind i teleskoprøret og hindrer ikke fyldningen. Ved hjælp af det i den kendetegnende del af krav 5 anførte opnår man, at forkammeret ved fyldningens afslutning kan sættes under et lille tryk for at undgå, at produktet drypper efter.By means of the characterizing part of claim 4, by filling a dispenser container with the middle of the piston rod disposed in the middle of the dispenser container, it is possible to capture and control the piston rod in the container. This piston rod partially penetrates the telescopic tube and does not interfere with filling. By means of the characterizing part of claim 5, it is achieved that the chamber at the end of the filling can be put under a small pressure to prevent the product from dripping.

3030

Den i den kendetegnende del af krav 6 anførte udførelsesform sikrer på enkel måde, at stemplet ved ophør af fyldetryk igen bevæges opad og automatisk afspærrer for en yderligere tilfør-ing af produkt til teleskoprøret.The embodiment according to the characterizing part of claim 6 simply ensures that upon cessation of filling pressure, the piston is again moved upwards and automatically shut off for a further supply of product to the telescopic tube.

Den i den kendetegnende del af krav 7 angivne udførelsesform gør det muligt samtidig at fylde beholdere med to forskellige komponenter, som f.eks. to forskelligt farvede tandpastaer.The embodiment of the characterizing part of claim 7 makes it possible to simultaneously fill containers with two different components, e.g. two different colored toothpastes.

35 t35 t

DK 154200 BDK 154200 B

33

Nedenfor beskrives opfindelsen nærmere på grundlag af tegningen i På denne viser fig. 1 et snit gennem et fyldeapparat ifølge opfindelsen, 5 fig. 2 en ændret udførelsesform for fyldeapparatet ifølge opfindelsen, set i snit, og dels under fyldningen (fig. 2a) og dels efter afsluttet fyldning (fig. 2b), og •*·0 fig. 3 et ændret apparat til at fylde beholdere med to for skellige komponenter, set i snit.The invention will now be described in more detail on the basis of the drawing. 1 is a section through a filling apparatus according to the invention; FIG. 2 is a sectional view of a modified embodiment of the filling apparatus according to the invention, partly during filling (Fig. 2a) and partly after completion of filling (Fig. 2b); and 3 is a sectional view of a modified apparatus for filling containers with two separate components.

Ved det i fig. 1 viste apparat er der tilvejebragt en fylde-station 1, der fødes med produkt for ifyldning fra en ikke I® vist lagerbeholder. Dette produkt kommer via et rørformet forkammer 6 ind i det egentlige fylderør 2. I forkammerets område er der tilvejebragt et sugerør 4, der ved fyldningens afslutning sættes under et lille undertryk for at undgå, at produktet drypper efter. I fylderøret 2 er der tilvejebragt 20 et koaksialt i forhold til dette frem- og tilbagebevægeligt teleskoprør 8, der ved sin øvre ende 10 står i forbindelse med forkammeret 6 og har et i forhold til fylderøret 8 tætnende ført stempel 12. Tætningen mellem fylderøret 2 og stemplet 12 kan ske via sædvanlige ringtætninger 14. Teleskoprøret 25 8 er ved sin nedre ende anbragt udskydeligt gennem en åbning 20 i en ringplade 18, der afdækker fylderørsende. I det foreliggende tilfælde styres teleskoprøret 8 i ringpladen 18's åbning 20 ved hjælp af tætninger 15.In the embodiment shown in FIG. 1, there is provided a filling station 1 which is fed with product for loading from a storage container not shown. This product enters the actual filling tube 2 via a tubular chamber 6 in the area of the chamber, a suction tube 4 is provided which, at the end of the filling, is placed under a small vacuum to prevent the product from dripping. In the filling tube 2, there is provided a coaxial with respect to this reciprocating telescopic tube 8, which at its upper end 10 communicates with the anterior chamber 6 and has a piston 12 sealingly sealed relative to the filling tube 8. the plunger 12 may be provided by conventional ring seals 14. The telescopic tube 25 8 is disposed at its lower end through an aperture 20 in a ring plate 18 which covers the filling tube end. In the present case, the telescopic tube 8 is guided in the opening 20 of the annular plate 18 by means of seals 15.

5° Mellem stemplet 12 og ringpladen 18 er der tilvejebragt en returfjeder 24, hvis fjederkraft under hensyntagen til teleskoprørets ekstra friktionskræfter er mindre end produktets ifyldningstryk.5 ° Between the piston 12 and the ring plate 18 a return spring 24 is provided whose spring force, taking into account the extra frictional forces of the telescopic tube, is less than the filling pressure of the product.

35 I fylderøret 2's nedre område er der nedenfor den nedre flade af teleskoprøret 8's stempel 12 i den nedre endestilling tilvejebragt én eller flere af 1 uftningsåbninger 26, for at den i fjederkammeret tilstedeværende luft kan undvige under teleskoprørets bevægelse.In the lower region of the filling tube 2, below the lower surface of the piston 12 of the telescopic tube 8, in the lower end position, one or more of one of the aeration openings 26 is provided in order to avoid the air present in the spring chamber during the movement of the telescopic tube.

DK 154200 BDK 154200 B

44

Yderfladen for ringpladen 18, der afdækker fylderørsenden, er i teleskoprøret 8's udstrømningsområde 16 trukket tragt-formigt ind, således som vist ved henvisningstallet 28. Derved muliggøres ved fyldning af dispenserbeholdere 30 med én i 5 beholderens indre værende stempelstang en indfangning og styring af den i beholderen stående stempelstang; denne stempelstang trænger delvis ind i teleskoprøret og hindrer ikke fyldningen.The outer surface of the annular plate 18, which covers the filling tube end, is funnel-shapedly retracted in the outflow area 16 of the telescopic tube 8, as shown by reference numeral 28. Thus, by filling dispenser containers 30 with one of the inner piston rod of the container 5, it is possible to capture and control it. container standing piston rod; this piston rod partially penetrates the telescopic tube and does not obstruct the filling.

1010

Ved den egentlige fyldning anbringes beholderen 30 under fylde-røret og ved en relativ bevægelse mellem beholderen 30 og fylderøret bevirkes fylderørets inddykning. Tilføres nu produkt under tryk, trykkes teleskoprøret 8's stempel 12 nedad imod fjederens kraft, indtil teleskoprøret erført ned til 15 sin nedre stilling. Ved den nu begyndende fyldning af beholderen opstår der ingen hvirveldannelser eller luftblærer. Afhængig af styringen af den relative bevægelse, der igen trækker fylderøret op fra beholderen, kan der foregå en fyldning under overfladespejlet eller også en niveaufyldning, hvilken fyldning så afsluttes ved at etablere et undertryk ved sugerøret 4, når fylderøret næsten fuldstændigt er fjernet fra dispenserbeholderen. I dette øjeblik forskydes også teleskoprøret igen til sin oprindelige stilling, takket være fjederen 24's returkraft.In the actual filling, the container 30 is placed under the filling tube and in a relative movement between the container 30 and the filling tube, the filling of the filling tube is effected. If product is now supplied under pressure, the piston 12 of the telescopic tube 8 is pressed downward against the force of the spring until the telescopic tube is brought down to its lower position. At the beginning of filling of the container, no vortices or vesicles are formed. Depending on the control of the relative motion which in turn pulls up the filling tube from the container, a filling may be under the surface mirror or also a level filling, which filling is then completed by establishing a vacuum at the suction tube 4 when the filling tube is almost completely removed from the dispenser container. At this moment, the telescopic tube is also shifted back to its original position, thanks to the return force of the spring 24.

2 52 5

Ved den i fig. 2a og b viste udførelsesform munder teleskoprøret 8 via en i stemplet værende koaksial forlængelsesboring i én eller flere radialt i stemplet 12' udformede kanaler 32, 3Q der kun ved den nedre slutstilling for stemplet 12' munder i én eller flere i fylderøret 2 tilvejebragte omløbskanaler 34. Disse omløbskanaler 34 munder ovenfor stemplet 12' i fylderørets indre, henholdsvis står så i forbindelse med forkammeret så længe som stemplet befinder sig i den nedre endestilling.In the embodiment shown in FIG. 2a and b, the telescopic tube 8 via a coaxial extension bore in one or more radially formed channels 32, 3Q formed radially in the piston 12 'which only at the lower end position of the piston 12' opens in one or more orifice channels 34 in the filling tube 2 These bypass channels 34 are above the piston 12 'in the interior of the filling tube, respectively, and are in communication with the anterior chamber as long as the piston is in the lower end position.

Når fyldetrykket ophæves, bevæges stemplet igen opad og afspærrer automatisk for en yderligere tilføring af produkt til teleskoprøret.When the filling pressure is lifted, the plunger moves upward again and automatically shuts off for a further supply of product to the telescopic tube.

t 35t 35

Claims

Apparatus for filling preferably cylindrical dispenser containers with a liquid or paste-like product, and comprising a filling station with a filling tube capable of diving into it in relative motion to the dispenser container, as well as a tube connected to the filling tube. chamber containing the product, characterized in that in the filling tube (2) there is provided a coaxial relation 25 to this tube reciprocating telescopic tube (8) which at its upper end (10) communicates with the chamber (6) ) and has a piston (12) sealingly guided in the filling tube (2) and which is disposed extensibly at its lower end (16) through an opening (20) in a ring plate (18) which covers the filling tube end 30 and that between the piston (12) and the ring plate (i8) are provided with a return spring (24) whose spring force, taking into account the extra frictional forces of the telescopic tube (24), is less than the filling pressure of the product.

Apparatus according to claim 1, characterized in that the telescopic tube (8) is guided sealingly in the opening (20) of the annular plate (18). DK 154200B

Apparatus according to claims 1 and 2, characterized in that one or more vent openings (26) are provided in the lower region of the filling tube (2) below the lower surface of the piston (12) of the telescopic tube (8) in the lower end position 5.

Apparatus according to claims 1-3, characterized in that the outer surface of the fill tube end covering ring plate (18) in the outflow area (16) of the telescopic tube (8) is funnel-shaped (at 28).

Apparatus according to claims 1-4, characterized in that the front chamber (6) is connected to a suction pipe (4). 15

Apparatus according to claim 1, characterized in that the telescopic tube (8) opens into one or more radially arranged channels (32) disposed in the piston (12 ') which, only at the lower end position of the piston, results in one or more in the filling tube (2). orifices (34) which open above the plunger (12 ') 20 in the interior of the filling tube (2) and are respectively in contact with the anterior chamber (6).

Apparatus according to claim 1, characterized in that in the wall of the telescopic tube (8 ') one or more bores 25 (40) are formed which extend parallel to the axis of the tube (8) and the upper ends of which via radially extending channels (32) opens into one annular ring groove (31) in the piston (12 '), which via bores in the filling tube communicates with one or more front chambers (42) for a further product, while the lower end is guided sealingly through the opening of the ring plate (18) and that a return spring is provided between the piston (14) and the ring plate (18). 35