WO2004087400A1 - Kalibriereinrichtung - Google Patents
Kalibriereinrichtung Download PDFInfo
- Publication number
- WO2004087400A1 WO2004087400A1 PCT/EP2004/003333 EP2004003333W WO2004087400A1 WO 2004087400 A1 WO2004087400 A1 WO 2004087400A1 EP 2004003333 W EP2004003333 W EP 2004003333W WO 2004087400 A1 WO2004087400 A1 WO 2004087400A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- spindle
- support structure
- rod
- calibration device
- individual
- Prior art date
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
- 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
- B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
- B29C48/90—Thermal treatment of the stream of extruded material, e.g. cooling with calibration or sizing, i.e. combined with fixing or setting of the final dimensions of the extruded article
- B29C48/907—Thermal treatment of the stream of extruded material, e.g. cooling with calibration or sizing, i.e. combined with fixing or setting of the final dimensions of the extruded article using adjustable calibrators, e.g. the dimensions of the calibrator being changeable
-
- 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
- B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
-
- 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
- B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
- B29C48/90—Thermal treatment of the stream of extruded material, e.g. cooling with calibration or sizing, i.e. combined with fixing or setting of the final dimensions of the extruded article
- B29C48/901—Thermal treatment of the stream of extruded material, e.g. cooling with calibration or sizing, i.e. combined with fixing or setting of the final dimensions of the extruded article of hollow bodies
- B29C48/903—Thermal treatment of the stream of extruded material, e.g. cooling with calibration or sizing, i.e. combined with fixing or setting of the final dimensions of the extruded article of hollow bodies externally
-
- 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
- B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
- B29C48/90—Thermal treatment of the stream of extruded material, e.g. cooling with calibration or sizing, i.e. combined with fixing or setting of the final dimensions of the extruded article
- B29C48/908—Thermal treatment of the stream of extruded material, e.g. cooling with calibration or sizing, i.e. combined with fixing or setting of the final dimensions of the extruded article characterised by calibrator surface, e.g. structure or holes for lubrication, cooling or venting
Definitions
- the invention relates to a calibration device according to the preamble of claim 1.
- Calibration devices are used, for example, for the calibration of extruded endless profiles, in particular pipes.
- a plastic melt is processed in an extruder, which is then machined by an outlet nozzle.
- the calibration device passes through the calibration device, in which it is shaped with exact dimensions.
- This calibration device consists, for example, of a multiplicity of lamellae which are distributed on the outside of the tube to be calibrated over the circumference and are arranged at a distance from one another.
- a large number of such lamellar rings are arranged within a calibration station, the individual lamellas of the individual lamellar rings being in a gap with respect to one another, whereby a problem-free adjustment of the individual lamellas of the individual ring is possible with respect to the lamellas of the subsequent ring or the previous ring ,
- the slats are segmented into a slat block and supported by a support structure.
- the holding structure is in turn connected to the housing in a radially adjustable manner.
- the problem with this embodiment of the calibration device is the one-piece design of the holding structure. It has been shown during the manufacture of the calibration device that a part of the holding structure, namely the adjustable part, must first be inserted into the housing. Then the individual slats are attached to the support and support structure in a technically difficult manner.
- the object of the present invention is to provide a calibration device which can be manufactured and assembled in a simple manner.
- a basic idea of the present invention is to construct the mounting and actuation device itself in two parts.
- a first part of the holding and actuating device can thus be accommodated in the housing independently of a second part.
- the second part of the holding and actuating device can serve as part of the support structure or can be connected to it. This makes it possible to arrange the individual lamellae outside the housing on the support structure in order to then mount them in the housing in the case of segment blocks which are in themselves finished.
- the two parts of the mounting and actuation device are connected to each other.
- This construction proves to be particularly advantageous when the second part of the holding and actuating device accommodated in the housing is designed for the radial adjustment of the respective segment blocks and is therefore usually integrated in the housing in a structurally complex manner.
- the holding and actuating device is designed in the form of a spindle drive, wherein - according to one embodiment - a spindle with an externally threaded section is arranged on the support structure.
- the external thread section interacts with a spindle nut which is rotatably driven by a further drive element.
- the spindle is in two parts constructed, with a first part, which is connected to the support structure, and with a second part, which comprises the external thread portion.
- connection of the two parts of the holding and actuating device can be a snap lock, a screw connection or similar, known connecting devices.
- a particularly simple embodiment is characterized in that the second part of the spindle accommodated in the housing is essentially in the form of a threaded rod with an external thread.
- the carrier structure can comprise a rod or a rod on which the individual segments of a segment block are lined up one after the other. The segments are held at predetermined distances from one another by spacer sleeves.
- the first part of the spindle would then be connected to such a rod or a rod of the support structure.
- a bore would preferably be provided in this part, through which the rod or the rod extends.
- the support structure can also be designed differently.
- the spindles each consist of a spindle holder and a spindle sleeve.
- the spindle holder comprises a spindle rod and an adjoining part which is connected to the support structure.
- the spindle rod is precisely fitted and fixable in the spindle sleeve.
- the spindle sleeve which has an external thread, could be inserted into the housing without the spindle rod.
- the individual segment blocks could then be inserted into the housing by inserting the respective spindle rod into an associated spindle sleeve.
- the respective spindle rods and sleeves are clamped against one another, for example by screwing, so that the spindle holder and spindle sleeve are fixed.
- the fixing can be realized, for example, in that a thread is provided at the end of the spindle rod opposite the support structure, and the spindle sleeve can be fixed or clamped relative to the spindle rod by screwing a nut onto the spindle.
- a complete arrangement of a device for producing a plastic tube can be found in DE 198 43 340 C2.
- An already adjustable calibration device is shown in this.
- the adjustable calibration device is a core component of a pipe extrusion system with the possibility of changing dimensions. It takes on the shaping task of a standard calibration, but can be adjusted continuously over the design-related diameter range.
- the surface adjacent to the tube is formed by a large number of individual segments.
- the segments 18 shown in FIG. 1 are rounded along their circumferential direction of the tube, which corresponds to the largest possible pipe outer diameter and are combined into individual segment rings.
- These segment wreaths are seen in the direction of production, spaced apart, but close together. Two consecutive segment wreaths are combined to form a dimension wreath, which are staggered to each other. This ensures that there are no edges when the pipe passes through the calibration device.
- the individual segment surfaces together form an essentially smooth inner tube surface with an essentially circular geometry.
- the segments 18 lying axially one behind the other in the production direction of the tube are combined to form a segment block 16.
- a support structure 30 is used, as will be explained in more detail later with reference to FIG. 5.
- the support structure 30 is connected to a holding and actuating device 20, which connects the respective segment blocks to the housing of the calibration device in a radially adjustable manner.
- the housing of the calibration device consists of two cylinder sections 12 and 14 arranged coaxially one inside the other.
- the individual segment blocks 16 are received in a circular fashion in these cylinder sections.
- a single segment block 16 of the first embodiment is shown schematically in FIG. 3.
- the support rods form the support structure 30.
- two spindle supports 20 are arranged at a distance from one another in the axial direction.
- the spindle carrier 20 are shown in Fig. 4 in two views. They consist of a fastening section 42, which is or can be connected to the support structure 30, and a threaded rod 40.
- the threaded rod 40 and the fastening section 42 can be detachably connected to one another at the connecting position, for example by a screw, clamp, Rest or other connection.
- the external threaded rods 40 are received in the associated bores of the housing cylinders 12 and 14. Between the two housing cylinders 12 and 14 there is a gear nut for each external threaded rod 22 provided, which cooperates with the external thread of the external threaded rod 40 in an adjustable manner.
- each segment block has two spindle carriers 20, which are axially spaced apart (FIG. 2) and each interact with an associated gear nut 22.
- the gear nuts 22 are in turn adjusted together by a gear ring 26 which extends circumferentially between the axially spaced gear nuts 22.
- the gear ring 26 has teeth meshing with the gear nuts 22 on its two edges.
- all segment blocks can be adjusted radially outwards or inwards simultaneously and in the same way. If all segment blocks are adjusted radially in the same way, the calibration diameter changes.
- the outer diameter of the tube 24 to be calibrated can thus be defined in the area of the adjustment possibility.
- An advantage of the present embodiment is the two-part construction, the mounting and actuation device designed in the form of spindle carrier 20. This makes it possible for the external thread rods 40 to be inserted into the housing 12, 14 and aligned accordingly.
- the segment blocks 16 can be produced by lining up the individual segments 18 on the carrier structure 30.
- the support structure 30 is also firmly connected to the fastening section 42.
- the individual segment blocks 16 can then be inserted into the housing 12, 14 simply and without problems. This enables simple and inexpensive manufacture of the calibration device.
- FIGS. 5 and 6 A further embodiment of the invention is shown in FIGS. 5 and 6, in which a segment block 16 'is shown in more detail.
- This segment block 16 ' comprises two different, alternately arranged lamella configurations 18' and 18 ".
- Each Lamella has two holes and is thus lined up on holding rods 52 and 54.
- a lower part of a spindle rod 60 is accommodated instead of the spacer sleeves.
- the spindle rod 60 comprises two bores through which the holding rods 52 and 54 extend.
- the spindle rod 60 is designed in the form of a pin and ends at its upper end with an external thread.
- a spindle sleeve 62 is pushed over the spindle rod 60 and has an external thread on its outer circumference.
- the spindle sleeve 62 bears against a seat of the spindle rod 60 at the bottom. At the upper end, it is fixed by screwing the screw 64 on the external thread of the spindle rod with the spindle rod 60 itself.
- the lower part of the segment block 16 ' can be produced by pushing the individual lamellae 18' and 18 "onto the respective support rods 52 and 54 using the Spacer sleeves and subsequent screwing at the ends of the holding rods 52 and 54.
- the two spindle rods 60 are also axially spaced into the support structure 30 '.
- the spindle sleeves 62 are inserted and adjusted accordingly in the calibration housing (not shown here).
- the lower parts of the segment blocks 16 ′ are then inserted by inserting the spindle rods 60 into the respective spindle sleeve 62.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
- Mutual Connection Of Rods And Tubes (AREA)
- Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA002520838A CA2520838A1 (en) | 2003-04-03 | 2004-03-30 | Calibration device |
US10/552,026 US7293975B2 (en) | 2003-04-03 | 2004-03-30 | Calibration device |
EP04724266A EP1613460A1 (de) | 2003-04-03 | 2004-03-30 | Kalibriereinrichtung |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10315125A DE10315125B3 (de) | 2003-04-03 | 2003-04-03 | Kalibriereinrichtung |
DE10315125.7 | 2003-04-03 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2004087400A1 true WO2004087400A1 (de) | 2004-10-14 |
Family
ID=32842227
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2004/003333 WO2004087400A1 (de) | 2003-04-03 | 2004-03-30 | Kalibriereinrichtung |
Country Status (7)
Country | Link |
---|---|
US (1) | US7293975B2 (de) |
EP (1) | EP1613460A1 (de) |
CN (1) | CN100408308C (de) |
CA (1) | CA2520838A1 (de) |
DE (1) | DE10315125B3 (de) |
RU (1) | RU2355571C2 (de) |
WO (1) | WO2004087400A1 (de) |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10337533B4 (de) * | 2003-08-14 | 2006-04-06 | Krauss-Maffei Kunststofftechnik Gmbh | Montagefreundliche, verstellbare Kalibriereinrichtung |
DE102004008620B3 (de) * | 2004-02-21 | 2005-10-13 | Egeplast Werner Strumann Gmbh & Co. Kg | Kalibrierkorb für eine Kalibrierstation |
ATE528120T1 (de) * | 2005-03-16 | 2011-10-15 | Greiner Tool Tec Gmbh | Traganordnung für ein extrusionswerkzeug und verfahren zur extrusion eines gegenstandes |
US7758331B2 (en) * | 2006-02-22 | 2010-07-20 | American Maplan Corporation | Pipe support system |
CN102189667A (zh) * | 2010-03-11 | 2011-09-21 | 上海金纬化纤机械制造有限公司 | 用于生产塑料管的叠加式定径套 |
DE102011001882A1 (de) | 2010-04-09 | 2011-10-13 | Troester Gmbh & Co. Kg | Vorrichtung mit einer einstellbaren Durchlassöffnung |
DE102019002005A1 (de) * | 2019-03-21 | 2020-09-24 | Kraussmaffei Technologies Gmbh | Lamellenblock für eine Kalibriereinrichtung mit innenseitigem Steg |
DE102019002011A1 (de) * | 2019-03-21 | 2020-09-24 | Kraussmaffei Technologies Gmbh | Lamellenblock mit versetzten Lamellen |
DE102019002027A1 (de) * | 2019-03-21 | 2020-09-24 | Kraussmaffei Technologies Gmbh | Lamellenblock mit Lamellendurchbrüchen |
DE102019002007A1 (de) * | 2019-03-21 | 2020-09-24 | Kraussmaffei Technologies Gmbh | Lamellenblock für eine Kalibriereinrichtung mit innenseitigem Steg |
DE102019002022A1 (de) * | 2019-03-21 | 2020-09-24 | Kraussmaffei Technologies Gmbh | Lamellenblock mit seitlich versetzten Lamellen |
DE102019002025A1 (de) | 2019-03-21 | 2020-09-24 | Kraussmaffei Technologies Gmbh | Lamellenblock mit kontinuierlich variierter Lamellenteilung |
DE102019002008A1 (de) | 2019-03-21 | 2020-09-24 | Kraussmaffei Technologies Gmbh | Lamellenblock mit kontinuierlich variierter Lamellenbreite |
DE102019002019A1 (de) * | 2019-03-21 | 2020-09-24 | Kraussmaffei Technologies Gmbh | Kalibrierkorb mit versetzten Verschneidungen |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3958913A (en) * | 1973-12-01 | 1976-05-25 | Hoechst Aktiengesellschaft | Cooling device for tubular sheeting |
DE19843340A1 (de) * | 1998-09-22 | 2000-04-06 | Strumann Werner Egeplast | Vorrichtung zur Herstellung von Kunststoffrohren |
JP2001287258A (ja) * | 2000-01-31 | 2001-10-16 | Sekisui Chem Co Ltd | 押出成形品の製造装置および押出成形品の連続製造方法 |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2847036A (en) * | 1955-04-18 | 1958-08-12 | Northern Electric Co | Automatically self-conforming fluid pressure reducer |
US3980418A (en) * | 1975-09-05 | 1976-09-14 | Gloucester Engineering Co. Inc. | Guide assembly for air-expanded thermoplastic tubes |
US5480295A (en) * | 1994-08-30 | 1996-01-02 | The Laitram Corporation | Easy-to-load extrustion sizing device |
DE69613575T2 (de) * | 1995-05-17 | 2002-04-25 | Knud Kristian Pedersen | Eine rohrformige kalibriereinheit fur maschienen die stangen extrudieren so wie rohre |
-
2003
- 2003-04-03 DE DE10315125A patent/DE10315125B3/de not_active Expired - Fee Related
-
2004
- 2004-03-30 RU RU2005134007/12A patent/RU2355571C2/ru active
- 2004-03-30 EP EP04724266A patent/EP1613460A1/de not_active Withdrawn
- 2004-03-30 CN CNB2004800088479A patent/CN100408308C/zh not_active Expired - Fee Related
- 2004-03-30 CA CA002520838A patent/CA2520838A1/en not_active Abandoned
- 2004-03-30 WO PCT/EP2004/003333 patent/WO2004087400A1/de active Application Filing
- 2004-03-30 US US10/552,026 patent/US7293975B2/en not_active Expired - Fee Related
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3958913A (en) * | 1973-12-01 | 1976-05-25 | Hoechst Aktiengesellschaft | Cooling device for tubular sheeting |
DE19843340A1 (de) * | 1998-09-22 | 2000-04-06 | Strumann Werner Egeplast | Vorrichtung zur Herstellung von Kunststoffrohren |
JP2001287258A (ja) * | 2000-01-31 | 2001-10-16 | Sekisui Chem Co Ltd | 押出成形品の製造装置および押出成形品の連続製造方法 |
Non-Patent Citations (1)
Title |
---|
PATENT ABSTRACTS OF JAPAN vol. 2002, no. 02 2 April 2002 (2002-04-02) * |
Also Published As
Publication number | Publication date |
---|---|
EP1613460A1 (de) | 2006-01-11 |
US20060240134A1 (en) | 2006-10-26 |
RU2005134007A (ru) | 2006-03-20 |
DE10315125B3 (de) | 2004-09-09 |
US7293975B2 (en) | 2007-11-13 |
CN100408308C (zh) | 2008-08-06 |
CA2520838A1 (en) | 2004-10-14 |
RU2355571C2 (ru) | 2009-05-20 |
CN1771119A (zh) | 2006-05-10 |
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