EP3452264A1 - Form- und füllstation einer anlage zum herstellen von gefüllten behältern aus vorformlingen durch unter druck in den vorformling eingeleitetes füllgut - Google Patents
Form- und füllstation einer anlage zum herstellen von gefüllten behältern aus vorformlingen durch unter druck in den vorformling eingeleitetes füllgutInfo
- Publication number
- EP3452264A1 EP3452264A1 EP17739872.4A EP17739872A EP3452264A1 EP 3452264 A1 EP3452264 A1 EP 3452264A1 EP 17739872 A EP17739872 A EP 17739872A EP 3452264 A1 EP3452264 A1 EP 3452264A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- gas barrier
- filling
- forming
- filling station
- cross
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/02—Combined blow-moulding and manufacture of the preform or the parison
- B29C49/06—Injection blow-moulding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/08—Biaxial stretching during blow-moulding
- B29C49/10—Biaxial stretching during blow-moulding using mechanical means for prestretching
- B29C49/12—Stretching rods
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/02—Combined blow-moulding and manufacture of the preform or the parison
- B29C2049/023—Combined blow-moulding and manufacture of the preform or the parison using inherent heat of the preform, i.e. 1 step blow moulding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/42—Component parts, details or accessories; Auxiliary operations
- B29C49/46—Component parts, details or accessories; Auxiliary operations characterised by using particular environment or blow fluids other than air
- B29C2049/4602—Blowing fluids
- B29C2049/465—Blowing fluids being incompressible
- B29C2049/4664—Blowing fluids being incompressible staying in the final article
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2949/00—Indexing scheme relating to blow-moulding
- B29C2949/07—Preforms or parisons characterised by their configuration
- B29C2949/0715—Preforms or parisons characterised by their configuration the preform having one end closed
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/08—Biaxial stretching during blow-moulding
- B29C49/10—Biaxial stretching during blow-moulding using mechanical means for prestretching
- B29C49/12—Stretching rods
- B29C49/121—Stretching rod configuration, e.g. geometry; Stretching rod material
- B29C49/1212—Stretching rod configuration, e.g. geometry; Stretching rod material the stretching rod comprising at least one opening on the surface, e.g. through which compressed air is blown into the preform to expand the same
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/42—Component parts, details or accessories; Auxiliary operations
- B29C49/78—Measuring, controlling or regulating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/712—Containers; Packaging elements or accessories, Packages
- B29L2031/7158—Bottles
Definitions
- the present invention relates to a forming and filling station of a plant for producing filled containers from preforms by introduced under pressure into the preform liquid contents and a stretch rod for such a molding and filling station.
- containers in particular bottles, are shaped in the blow-molding process by a molding gas flowing under pressure into a preheated preform, and in a second step are filled with a filling material, in particular a liquid filling material.
- a filling material in particular a liquid filling material.
- a preform can be formed into a container, it is thermally conditioned, that is, in particular heated and provided with a suitable temperature profile.
- the body of the preform is heated to approximately 120 ° C and malleable, while the mouth area may only reach significantly lower temperatures, since the preform is held at the mouth area in the forming and filling machine and must not deform under the usual holding forces there .
- a device for producing filled containers has a heating section, along which the preforms are guided while being provided with the desired temperature profile. The molding process must then proceed very rapidly so that the heat stored in the preform is sufficient to plastically deform the preform until completion of the molding process. Therefore, when molding with liquid product, the volume required for the molded container must be supplied to the preform under high pressure and within a short time interval.
- the preform must also be guided during its forming in the container, so that a uniform and controlled deformation can take place. This can be done with a stretch rod, which performs a movement in the direction of the longitudinal axis of the container during the molding and filling process and thereby initiates the forming process by pressure on the bottom of the preform and then controlled by contact with the bottom region forming.
- the stretching rod which dips into the interior of the preform through the mouth of the preform restricts the cross section available for the possible filling material supply to the stretching rod in such a way that it makes sense to feed it through the stretching rod.
- the filling material can be fed through the stretching rod at different points of the preform or the forming container and an advantageous flow can be achieved by clever positioning of the outlet openings.
- the filling valve with which the product flow is controlled, is normally arranged in the forming and filling head in front of the stretching rod for practical reasons, so that the volume of product downstream of it can easily run out of the stretching rod. It is already known from DE 10 2010 007 541 A1 to minimize the dripping of filling medium by mechanical means by arranging a check valve in the flow path for the filling medium. This check valve closes with spring force load as soon as the spring force exceeds the flow pressure of the filling material on the non-return element of the check valve.
- the forming and filling station is not immediately at full pressure ready for use. After opening the filling valve, the stretching rod volume must first be supplied with filling material. The air in it must first be displaced before the full hydraulic pressure can be built up by the contents.
- a molding and filling station of a plant for producing filled containers from preforms by under pressure into the preform introduced liquid contents comprising a stretch rod and a liquid channel which is controllable by a filling valve and at least partially passes through the stretch rod and ends in at least one outlet opening arranged in the stretch rod, which is characterized in that a gas barrier is arranged in the liquid channel between the filling valve and the outlet opening.
- a gas barrier is an element disposed in the fluid channel that, by properly sizing or dividing the free flow area of the fluid passage, prevents air from entering the portion of the fluid passage upstream of the gas barrier.
- a mechanical closing of the flow path is not required in contrast to the check valve of DE 10 2010 007 541 A1.
- a gas barrier is based on the finding that a liquid which is depressurized in a line, no longer runs out of the line due to their surface tension in conjunction with the ambient pressure, if the outlet opening of the line is small enough. The surface tension then prevents dripping.
- the barrier effect of the gas barrier is therefore based solely on the surface tension of the liquid.
- a gas barrier may consist of a plurality of screen or flow channels which divide the overall cross section of the channel into a plurality of smaller cross sections, so that each individual cross section is small enough to achieve the desired effect.
- the gas barrier may in particular have round or polygonal cross-sectional areas, in particular triangular or hexagonal cross-sectional areas.
- the gas barrier may form channels with a coaxial arrangement in the stretch rod.
- the length of a channel is greater than the diameter of its cross-sectional area.
- the gas barrier is arranged immediately in front of the outlet opening of the flow channel. Immediately meant here mean that the remaining between the gas barrier and the outlet fluid volume is negligible. The product possibly still emerging from the stretch rod can thus be minimized.
- the stretch rod of a forming and filling station according to the invention can also have a plurality of outlet openings.
- the outlet openings can be arranged at the same height in the flow channel, for example a plurality of radial openings in the stretch rod, or at different heights, so that during the molding and filling process contents can be introduced into the preform at different heights.
- a gas barrier should then preferably be arranged in front of each outlet opening. This may be a common gas barrier for a plurality of spatially close to each other outlet openings or individual, each arranged in front of the respective outlet opening gas barriers.
- the object according to the invention is also achieved by a stretching rod for an above-described forming and filling station with a filling channel and at least one outlet opening to the outlet of filling material, which is characterized in that a gas barrier is arranged in the filling channel.
- the gas barrier preferably divides the cross-section of the liquid channel to a plurality of cross-sectional areas. It may have round or polygonal cross-sectional areas, in particular triangular or hexagonal cross-sectional areas.
- the gas barrier may form channels with a coaxial arrangement in the stretch rod. Preferably, the length of a channel is greater than the diameter of its cross-sectional area.
- the gas barrier may be arranged immediately in front of the outlet opening.
- the stretch rod may also have a plurality of outlet openings at different positions of the flow channel and a gas barrier may be arranged in front of each outlet opening.
- Figure 1 shows schematically the elements of a forming and filling station in the context of a
- Figure 2 shows a stretch rod according to the invention during the simultaneous forming and filling of a preform in a container in section;
- Figure 3 shows the stretching rod of Figure 1 at the beginning of a molding and filling operation in the unpressurized state in section;
- Figure 4 shows a perspective, partially sectioned view of a stretch rod according to the invention with a gas barrier
- Figure 5 shows a stretch rod similar to Figure 1, wherein the stretch rod over several
- Fig. 1 shows a longitudinal section through a preform 2, in which a stretch rod 1 is inserted.
- the stretch rod 1 serves for the at least temporary guidance of the preform 2 during its transformation to the container. Typically, a contact takes place between the tip 18 of the stretching rod 1 and the bottom 19 of the preform 2.
- a longitudinal stretching of the preform 2 is caused.
- a storage device 20 is taken from introduced product 21 through the liquid channel 3 in the interior of the stretch rod 1 in the preform 2.
- the liquid flow may be controlled by the fill valve 22.
- Venting of the preform 2 may be accomplished using a vent valve 26.
- the vent valve 26 is connected to an outflow opening 27, which is arranged in the region of a shaping and filling head 8 acting on the preform 2.
- a seal 29 which may be formed, for example, as an O-ring.
- An inner space 30 of the preform 2 can be connected to the outflow opening 27 via an annular gap 31.
- the annular gap 31 in this case partially encloses the stretch rod 1.
- the filling material can flow into the preform 2 through the outlet openings 4a, 4b when the filling valve is open.
- a gas barrier 6 is arranged according to the invention.
- Figure 2 shows a stretch rod 1 according to the invention during the simultaneous forming and filling of a preform 2 in a container in section.
- the forming and filling head 8 of a forming and filling station of a device for simultaneously forming and filling bottles of preforms is placed at the mouth 7 of the preform.
- the preform 2 is in a form, not shown here, which defines the shape of the bottle to be formed.
- a liquid channel 3 can be introduced through the contents under high pressure in the preform 2.
- the filling valve not shown in this figure, which is located above the stretch rod in the liquid flow, opened.
- Filling material is through the outlet openings 4a, 4b and 5 in introduced the preform 2.
- the pressure generated in the preform causes it to be transformed into a container, as indicated by the arrows.
- FIG. 3 shows the same arrangement as in FIG. 1, but at the beginning of a molding and filling process.
- the stretch rod 1 is already introduced into the preform 2, but is still depressurized, since the filling valve, not shown, is still closed.
- the gas barrier 6 prevents the filling material present in the liquid channel 3 from flowing out through the outlet openings 4a, 4b, 5 in the stretching rod as long as the station is depressurized.
- the gas barrier 6 consists of a plurality of channels 9 with a round cross section and a length L which corresponds to a multiple of the channel diameter. Which dimensions and relations between channel diameter and channel length L are suitable depends largely on the product and its surface tension. The person skilled in the art can easily determine suitable dimensions theoretically or experimentally.
- FIG. 5 shows a stretching rod 1 similar to FIG. 1, the stretching rod having a plurality of outlet openings 4a, 4b, 5 and 4c, 4d at different height levels. Filling material can thus be introduced at different heights in the forming container.
- a gas barrier 6a is arranged as well as in front of the upper outlet openings 4c, 4d.
- the upper gas barrier 6b prevents contents can run from above from the liquid channel in the stretch rod when the liquid has flowed below the gas barrier 6b through the outlet openings 4c, 4d after closing the filling valve and a small unfilled area in the stretch rod in the area the upper outlet openings 4c, 4d is located.
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
- Basic Packing Technique (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102016009208.4A DE102016009208A1 (de) | 2016-07-29 | 2016-07-29 | Form- und Füllstation einer Anlage zum Herstellen von gefüllten Behältern aus Vorformlingen durch unter Druck in den Vorformling eingeleitetes Füllgut |
PCT/EP2017/000832 WO2018019405A1 (de) | 2016-07-29 | 2017-07-13 | Form- und füllstation einer anlage zum herstellen von gefüllten behältern aus vorformlingen durch unter druck in den vorformling eingeleitetes füllgut |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3452264A1 true EP3452264A1 (de) | 2019-03-13 |
Family
ID=59350859
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP17739872.4A Withdrawn EP3452264A1 (de) | 2016-07-29 | 2017-07-13 | Form- und füllstation einer anlage zum herstellen von gefüllten behältern aus vorformlingen durch unter druck in den vorformling eingeleitetes füllgut |
Country Status (5)
Country | Link |
---|---|
US (1) | US20200001514A1 (de) |
EP (1) | EP3452264A1 (de) |
CN (1) | CN109476066A (de) |
DE (1) | DE102016009208A1 (de) |
WO (1) | WO2018019405A1 (de) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102017010272B3 (de) | 2017-11-07 | 2019-03-21 | Khs Corpoplast Gmbh | Form- und Füllstation einer Anlage zum Herstellen von gefüllten Behältern aus Vorformlingen durch unter Druck in den Vorformling eingeleitetes Füllgut |
PL3670144T3 (pl) * | 2018-12-21 | 2022-01-31 | "Tes" Spółka Z Ograniczoną Odpowiedzialnością | Zespół do rozdmuchiwania butelek z preform PET, przeznaczonych do gorącego nalewu |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AU508942B2 (en) * | 1977-12-02 | 1980-04-17 | Yoshino Kogyosho Co., Ltd. | Preparing saturated polyester resin bottles |
CN2042065U (zh) * | 1988-12-08 | 1989-08-02 | 中南制药机械厂 | 液体灌装机防滴漏装置 |
JP3568598B2 (ja) * | 1994-09-28 | 2004-09-22 | 日本テトラパック株式会社 | 液体充填用ノズル板 |
DE102008010078A1 (de) * | 2008-02-19 | 2009-09-17 | Khs Ag | Verfahren zum Füllen von Behältern mit einem aus wenigstens zwei Komponenten bestehenden Füllgut, Füllstelle sowie Füllmaschine zum Durchführen des Verfahrens |
DE102008049906B4 (de) * | 2008-10-02 | 2024-05-02 | Krones Aktiengesellschaft | Vorrichtung zum Umformen von Kunststoffvorformlingen und Stangenkörper für eine Streckblasmaschine |
DE102009053350B4 (de) * | 2009-11-17 | 2011-09-22 | Khs Gmbh | Füllelement |
DE102010007541A1 (de) | 2009-12-23 | 2011-06-30 | KHS Corpoplast GmbH, 22145 | Verfahren und Vorrichtung zur Herstellung von gefüllten Behältern |
DE102010049505B4 (de) * | 2010-10-21 | 2015-10-29 | Khs Corpoplast Gmbh | Verfahren zur Herstellung von Behältern sowie blasgeformter Behälter |
DE102012015087A1 (de) * | 2012-08-01 | 2014-05-15 | Khs Corpoplast Gmbh | Verfahren sowie Vorrichtung zum Herstellen von mit einem flüssigen Füllgut gefüllten Behältern |
DE102013013591A1 (de) * | 2013-08-19 | 2015-02-19 | Khs Corpoplast Gmbh | Verfahren und Vorrichtung zur blasformenden Herstellung von zumindest bereichsweise sterilen Behältern |
DE102013110774A1 (de) * | 2013-09-30 | 2015-04-02 | Sig Technology Ag | Vorrichtung zur Veränderung der Strahlform von fließfähigen Produkten |
CN103910319B (zh) * | 2014-04-03 | 2016-08-24 | 杭州中亚机械股份有限公司 | 一种无菌灌装阀 |
EP2987608B1 (de) * | 2014-08-20 | 2018-09-19 | Krones AG | Formfüllmaschine |
-
2016
- 2016-07-29 DE DE102016009208.4A patent/DE102016009208A1/de not_active Ceased
-
2017
- 2017-07-13 WO PCT/EP2017/000832 patent/WO2018019405A1/de unknown
- 2017-07-13 EP EP17739872.4A patent/EP3452264A1/de not_active Withdrawn
- 2017-07-13 US US16/314,213 patent/US20200001514A1/en not_active Abandoned
- 2017-07-13 CN CN201780045084.2A patent/CN109476066A/zh active Pending
Also Published As
Publication number | Publication date |
---|---|
US20200001514A1 (en) | 2020-01-02 |
CN109476066A (zh) | 2019-03-15 |
DE102016009208A1 (de) | 2018-02-01 |
WO2018019405A1 (de) | 2018-02-01 |
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