WO2014085842A1 - Anfahrventil für eine granuliervorrichtung - Google Patents
Anfahrventil für eine granuliervorrichtung Download PDFInfo
- Publication number
- WO2014085842A1 WO2014085842A1 PCT/AT2013/050235 AT2013050235W WO2014085842A1 WO 2014085842 A1 WO2014085842 A1 WO 2014085842A1 AT 2013050235 W AT2013050235 W AT 2013050235W WO 2014085842 A1 WO2014085842 A1 WO 2014085842A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- housing
- slide
- sealing ring
- valve
- changeover
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B9/00—Making granules
- B29B9/02—Making granules by dividing preformed material
- B29B9/06—Making granules by dividing preformed material in the form of filamentary material, e.g. combined with extrusion
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B7/00—Mixing; Kneading
- B29B7/80—Component parts, details or accessories; Auxiliary operations
- B29B7/801—Valves
-
- 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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/255—Flow control means, e.g. valves
- B29C48/2556—Flow control means, e.g. valves provided in or in the proximity of dies
-
- 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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/001—Combinations of extrusion moulding with other shaping operations
- B29C48/0022—Combinations of extrusion moulding with other shaping operations combined with cutting
-
- 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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/04—Particle-shaped
-
- 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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/05—Filamentary, e.g. strands
-
- 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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/50—Details of extruders
- B29C48/695—Flow dividers, e.g. breaker plates
Definitions
- the invention relates to a starting valve for a granulating device with a housing and a housing displaceably passing through, cylindrical change-over slide, which connects an inlet for a plastic melt optionally with a melt flow or a granulation of the granulator.
- the screw extruders of Granulier have the task of redirecting the melt strand in the start-up position until the requirements for a proper granulation process corresponding melt strand can be ensured.
- the switch slide which is axially displaceably mounted in a housing therefore generally has two switch positions in which the melt feed from the extruder is connected either to a melt outlet opening into a collecting container or to the granulating head connected to the starting valve. Due to the displaceable mounting of the changeover spool in the housing, there is the danger, in particular in the transition region between the two switch positions, that due to the delivery pressure on the melt strand, low-viscosity melt penetrates into the sliding gap between changeover spool and housing and passes through this sliding gap to the outside. In this context, it should be noted that the changeover slide is usually is heated, so that considerable temperature loads can be expected, which affect the tight implementation of the changeover spool through the housing.
- the invention is therefore based on the object, a start-up valve of the type described in such a way that, despite the difficult operating conditions, a tight passage of the changeover spool can be ensured by the housing.
- the invention solves this problem in that one of the two formed on the one hand by the housing and on the other hand by the switching valve parts on both sides of the inlet for the plastic melt has an open against the other valve member, conical annular recess for a sealing ring, which can be acted upon axially via a pressure ring is.
- the sealing ring Due to the conical annular recess receiving the sealing ring, the sealing ring is pressed radially against the respectively adjacent, other valve part during axial loading along the conical surface, so that the changeover slide is sealed against the housing on both sides of the inlet for the plastic melt.
- the sealing ring With an adapted axial loading of the sealing ring thus also the occurring heat loads of the changeover spool and the housing can be considered. This prevents a melt outlet from the housing of the starting valve in a simple manner.
- the cross section of the sealing ring can be chosen differently per se, because the conical surface of the annular recess inevitably has a radial Beauftschungskomponente at an axial loading of the sealing ring.
- particularly advantageous construction conditions arise when the sealing ring has a wedge-shaped cross section with a shape adapted to the opening angle of the conical annular recess Wedge angle, because in this case the surface load of the seal ring can be kept relatively small.
- the housing may have on the passing through the changeover slide end faces open against the changeover slide, conical annular recess for the sealing ring.
- the change-over slide penetrates the housing on both end faces liquid-tight.
- the change-over slide at both ends may have an annular shoulder forming the annular recess, wherein the pressure ring provided on a head piece engages around the front end of the change-over slide.
- Fig. 3 is a representation corresponding to FIG. 1 of an embodiment of a starting valve according to the invention in a larger scale.
- the starting valve has, according to FIGS. 1 and 2, a housing 1, which is penetrated by a switching slide 2.
- This change-over slide 2 is actuated via the piston rod 3 of a control cylinder, not shown, and has two flow channels 4 and 5, the melt flow of a connected to the inlet 6 screw extruder optionally with an im Embodiment by the flow channel 5 itself formed melt drain 7 or a granulating a connected to a feed channel 8 of the housing 1 granulator connect.
- the melt stream is conveyed via the melt outlet 7 into a collecting tank until the melt stream meets the requirements for the subsequent granulation of the granulating device.
- the change-over slide 2 By actuation of the actuating cylinder, the change-over slide 2 is axially displaced via the piston rod 3 in the housing 1, so that the flow channel 4 of the change-over slide 2 connects the inlet 6 with the feed channel 8 of the housing 1, whereby the granulating head of the connected granulating device is put into operation.
- this seal comprises a conical annular recess 9 surrounding the change-over slide 2 and open against the change-over slide 2, into which a sealing ring 10 is inserted.
- This sealing ring 10 is preferably provided with a wedge-shaped cross section whose wedge angle corresponds to the opening angle of the conical annular recess 9. The sealing ring 10 is acted upon via a pressure ring 1 1 by means of clamping screws 12 in the axial direction, so that the sealing ring 10 is displaced along the conical surface of the annular recess 9.
- This axial displacement is accompanied by a radial displacement, which causes a tight abutment of the sealing ring 10 on the jacket of the changeover slide 2, wherein the passage of the changeover slide 2 is sealed by the housing 1 of the Anfahrventils on the two end faces advantageous against a melt outlet.
- the sealing ring 10 is not assigned to the housing 1 but to the change-over slide 2.
- the change-over slide 2 forms for this purpose at its two ends a re-entrant, the annular recess 9 forming, conical annular shoulder, to which the wedge-shaped in cross section sealing ring 10 applies.
- pressure rings 1 are provided on head pieces 13 and engage around the respective end face of the change-over.
- sealing ring 10 corresponding rings made of aluminum, brass, but also depending on the melt temperature temperature-resistant, fiber-reinforced plastics can be used in low-melting plastics.
- the material of the sealing rings 10 must have sufficient for the sealing effect in conjunction with the conical surface of the annular recess 9 deformability.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE112013005847.2T DE112013005847A5 (de) | 2012-12-06 | 2013-12-05 | Anfahrventil für eine Granuliervorrichtung |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ATA50565/2012 | 2012-12-06 | ||
ATA50565/2012A AT513247B1 (de) | 2012-12-06 | 2012-12-06 | Anfahrventil für eine Granuliervorrichtung |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2014085842A1 true WO2014085842A1 (de) | 2014-06-12 |
Family
ID=49911066
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/AT2013/050235 WO2014085842A1 (de) | 2012-12-06 | 2013-12-05 | Anfahrventil für eine granuliervorrichtung |
Country Status (3)
Country | Link |
---|---|
AT (1) | AT513247B1 (de) |
DE (1) | DE112013005847A5 (de) |
WO (1) | WO2014085842A1 (de) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2014179039A1 (en) * | 2013-05-01 | 2014-11-06 | Invista North America S.A.R.L. | Additive injection zone valve |
DE102018215613A1 (de) * | 2018-09-13 | 2020-03-19 | Robert Bosch Gmbh | Verfahren und Vorrichtung zur Herstellung einer Polymerfolie |
WO2020057983A1 (de) * | 2018-09-21 | 2020-03-26 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Vorrichtung zur beeinflussung des volumenstroms von extrudiertem plastisch verformbaren werkstoff |
EP3854565A1 (de) * | 2020-01-21 | 2021-07-28 | Aurotec GmbH | Ventil und verfahren zum transport von fluiden |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2017571A (en) * | 1978-04-01 | 1979-10-10 | Werner & Pfleiderer | Plastics extrusion granulating apparatus |
DE3815897C1 (de) * | 1988-05-10 | 1989-07-13 | Werner & Pfleiderer Gmbh, 7000 Stuttgart, De | |
US20030112698A1 (en) * | 2001-07-24 | 2003-06-19 | Wenger Manufacturing, Inc. | Twin screw extruder with conical non-parallel converging screws |
US20040043094A1 (en) * | 2002-08-30 | 2004-03-04 | Wengermanufacturing, Inc. | Method and apparatus for extrusion of food products including back pressure valve/diverter |
DE10312187A1 (de) * | 2003-03-19 | 2004-09-30 | Rieter Automatik Gmbh | Düsenanordnung eines Unterwasser-Granulators |
DE202009011114U1 (de) * | 2009-08-14 | 2010-12-30 | Gala Industries Inc. | Granuliervorrichtung sowie Anfahrventil hierfür |
DE202011106715U1 (de) * | 2011-10-12 | 2012-01-19 | Maag Pump Systems Gmbh | Vorrichtung zum Verteilen einer Kunststoffschmelze |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4283062A (en) * | 1979-12-26 | 1981-08-11 | Cincinnati Milacron Inc. | Hydraulic injection molding machine stuffing box |
US5439589A (en) * | 1994-05-09 | 1995-08-08 | Trafalgar House Inc. | Sealing means for slide plate screen changer |
-
2012
- 2012-12-06 AT ATA50565/2012A patent/AT513247B1/de active
-
2013
- 2013-12-05 DE DE112013005847.2T patent/DE112013005847A5/de not_active Withdrawn
- 2013-12-05 WO PCT/AT2013/050235 patent/WO2014085842A1/de active Application Filing
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2017571A (en) * | 1978-04-01 | 1979-10-10 | Werner & Pfleiderer | Plastics extrusion granulating apparatus |
DE3815897C1 (de) * | 1988-05-10 | 1989-07-13 | Werner & Pfleiderer Gmbh, 7000 Stuttgart, De | |
US20030112698A1 (en) * | 2001-07-24 | 2003-06-19 | Wenger Manufacturing, Inc. | Twin screw extruder with conical non-parallel converging screws |
US20040043094A1 (en) * | 2002-08-30 | 2004-03-04 | Wengermanufacturing, Inc. | Method and apparatus for extrusion of food products including back pressure valve/diverter |
DE10312187A1 (de) * | 2003-03-19 | 2004-09-30 | Rieter Automatik Gmbh | Düsenanordnung eines Unterwasser-Granulators |
DE202009011114U1 (de) * | 2009-08-14 | 2010-12-30 | Gala Industries Inc. | Granuliervorrichtung sowie Anfahrventil hierfür |
DE202011106715U1 (de) * | 2011-10-12 | 2012-01-19 | Maag Pump Systems Gmbh | Vorrichtung zum Verteilen einer Kunststoffschmelze |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2014179039A1 (en) * | 2013-05-01 | 2014-11-06 | Invista North America S.A.R.L. | Additive injection zone valve |
DE102018215613A1 (de) * | 2018-09-13 | 2020-03-19 | Robert Bosch Gmbh | Verfahren und Vorrichtung zur Herstellung einer Polymerfolie |
WO2020057983A1 (de) * | 2018-09-21 | 2020-03-26 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Vorrichtung zur beeinflussung des volumenstroms von extrudiertem plastisch verformbaren werkstoff |
CN113165245A (zh) * | 2018-09-21 | 2021-07-23 | 弗劳恩霍夫应用研究促进协会 | 用于影响挤出的可塑性变形材料的体积流量的装置 |
RU2760697C1 (ru) * | 2018-09-21 | 2021-11-29 | Фраунгофер-Гезельшафт Цур Фёрдерунг Дер Ангевандтен Форшунг Э.Ф. | Устройство для воздействия на объемный расход пластически деформируемого экструдируемого материала |
CN113165245B (zh) * | 2018-09-21 | 2022-10-11 | 弗劳恩霍夫应用研究促进协会 | 用于影响挤出的可塑性变形材料的体积流量的装置 |
US12109758B2 (en) | 2018-09-21 | 2024-10-08 | Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. | Device for influencing the volumetric flow of extruded plastically deformable material |
EP3854565A1 (de) * | 2020-01-21 | 2021-07-28 | Aurotec GmbH | Ventil und verfahren zum transport von fluiden |
WO2021148489A1 (de) * | 2020-01-21 | 2021-07-29 | Aurotec Gmbh | Ventil |
Also Published As
Publication number | Publication date |
---|---|
DE112013005847A5 (de) | 2015-08-20 |
AT513247A4 (de) | 2014-03-15 |
AT513247B1 (de) | 2014-03-15 |
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