EP2735413A1 - Filière d'extrusion - Google Patents

Filière d'extrusion Download PDF

Info

Publication number
EP2735413A1
EP2735413A1 EP12193557.1A EP12193557A EP2735413A1 EP 2735413 A1 EP2735413 A1 EP 2735413A1 EP 12193557 A EP12193557 A EP 12193557A EP 2735413 A1 EP2735413 A1 EP 2735413A1
Authority
EP
European Patent Office
Prior art keywords
mouthpiece
support rod
incorporated
holding
plate
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.)
Granted
Application number
EP12193557.1A
Other languages
German (de)
English (en)
Other versions
EP2735413B1 (fr
Inventor
Harald Berger
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Haendle Maschinen und Anlagenbau GmbH
Original Assignee
Ziegelmundstueckbau Braun GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Ziegelmundstueckbau Braun GmbH filed Critical Ziegelmundstueckbau Braun GmbH
Priority to EP12193557.1A priority Critical patent/EP2735413B1/fr
Publication of EP2735413A1 publication Critical patent/EP2735413A1/fr
Application granted granted Critical
Publication of EP2735413B1 publication Critical patent/EP2735413B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B3/00—Producing shaped articles from the material by using presses; Presses specially adapted therefor
    • B28B3/20—Producing shaped articles from the material by using presses; Presses specially adapted therefor wherein the material is extruded
    • B28B3/26—Extrusion dies

Definitions

  • the invention relates to a mouthpiece for producing a molded article from a ceramic mass in the extrusion process according to the preamble of claim 1.
  • the support rods at the free end, the cores are incorporated to form the honeycomb structure or cavities in the finished pressed molding, welded to the support plate.
  • a torsion-proof and permanent attachment of the respective support rod to the support plate is achieved by the weld, but disadvantageously, the support rods are not isolated from the support plate are removed if they are worn, for example.
  • the support rod and the retaining plate have to weigh up a pair of materials, which is suitable for welding.
  • Such material pairings are especially steel-steel.
  • the retaining plate which has become known from the state of the art is designed in one piece and is made from solid or the isolated struts are welded together to form their own structures. This disadvantageously means that the geometry of the retaining plate can not be changed when the transverse and longitudinal struts are firmly connected. However, should change the composition of the ceramic mass to be deformed, it is often necessary to replace the mouthpiece completely. Such retrofitting lead to downtime and are therefore undesirable and costly business management.
  • the entire mouthpiece can not be used. Even damage caused by wear cause the mouthpiece to be completely replaced.
  • a mouthpiece of the type mentioned available which consists of a modular holding plate, the geometric dimension is variably selectable and can be attached to the occasionally detachable handrails.
  • each of the crossbars can be fixed to the main bar at least two positions by means of the threaded bolts, so that after the mounting a dimensionally stable grid of the main bars and the crossbars is formed.
  • a plurality of webs is formed on the crossbars, which preferably protrude perpendicular to this.
  • Through-openings may be incorporated into both the transverse straps and the webs, in which the holding rods can be attached in a position-oriented and centered manner, or used to achieve optimum alignment of the support rods and their cores.
  • the respective support bar can be individually detached from the adhesive plate and replaced by another support rod, for example, if this is worn or if the material pairing is replaced.
  • handrails, main and transverse brackets are to be used, which have different length dimensions, in order to achieve an optimal alignment of the support rods and attached to these cores, because the longer the support rods, the greater the risk that these out of their predetermined Pressed out position during the pressing process.
  • the handrails are too short, then the ceramic mass will precede the passage no homogenous or sufficiently homogeneous structure between the respective adjacent cores.
  • the support rods are connected in a rotationally fixed manner to the retaining plate.
  • a bore is incorporated in the support rod, which runs perpendicular to the flow direction or the longitudinal axis of the support rod and into which a cylindrical pin is inserted.
  • the cylinder pin protrudes on both sides of the support rod out of this and is inserted into an incorporated in the retaining plate groove or notch.
  • the outer contour of the groove corresponds to the geometric dimension of the cylindrical pin, so that it rests in the groove and is held against rotation in this.
  • each of the support rods is accurately positionally fixed to the support plate, since the connection between the cylinder pin and the groove on the one hand, a centering of the support rod and on the other a rotation, so that the position and orientation of the respective core on the support rod during the extrusion process not is changed.
  • FIG. 1 is to take a mouthpiece 1, which is installed in a press channel 2 of an extruder, not shown.
  • a homogeneous ceramic mass 10 is conveyed through a screw conveyor associated with the extruder, which is forced through the mouthpiece 1 by the screw conveyor to form a molded article 25 in the extrusion process, in which a plurality of cavities 26 provided in the finished pressed state are that form a honeycomb structure.
  • Such moldings 25 are then heated and used as goat teats.
  • the mouthpiece 1 consists of a built-in press channel 2 Vorsetzplatte 4, on which a Anschraubfuss 5 is provided, to which by means of welding a main bracket 7 'is mounted.
  • a holding plate 7 is formed by the main bar 7 ', which consists of transverse bar 7 "attached to the main bar 7'.
  • the holding plate 7 has a plurality of main bars 7 'and transverse bars 7 aligned transversely and longitudinally with respect to the flow direction indicated by the reference number 9 ", which converge in each case in a node point, Thus, between the main and transverse straps 7 'and 7", a through-hole is provided, through which the ceramic mass 10 is forced.
  • two mutually parallel main brackets 7 ' are provided, which serve as support frames for the transverse straps 7 "to be fastened thereto.
  • a threaded hole 29 and the respective cross bar 7 " incorporated a through hole 28.
  • the through holes 28 are to be positioned in alignment with the threaded holes 29, so that in the through hole 28, a threaded screw 27 are inserted can, which is then screwed into the threaded hole 29.
  • a plurality of webs 30 are formed on each of the crossbars 7 ", which extend perpendicular to the cross bar 7".
  • Through-openings 11 are provided both in the webs 30 and in the transverse straps 7 ", into which a portion of the support rods 8 can be inserted in order to secure them in a centered and position-oriented manner, as will be explained in more detail below.
  • the webs 30 can be aligned at a predetermined inclination angle.
  • the support rods 8 are parallel to each other and parallel to the flow direction 9.
  • a core 20 is attached in each case, is formed by the respective cavity 26 in the molding 25 in the ceramic mass ,
  • the distance between the cores 20 and the holding plate 7 is to be dimensioned such that the ceramic mass 10 after passing through the holding plate 7 on the one hand can assume a homogeneous structure and on the other hand, that the deflection of the respective support rod 8 due to the prevailing pressures is not deflected when pressing the ceramic mass 10 from the predetermined position.
  • the support rod 8 may for example be made of a ceramic or metallic material and the support plate 7 may consist of one of these materials.
  • a bore 16 is incorporated into the support rod 8, which extends perpendicular to the flow direction 9 and the longitudinal axis 15 of the support rod 8.
  • a cylindrical pin 17 used, which protrudes from the two opposite lateral surfaces of the support rod 8.

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Press-Shaping Or Shaping Using Conveyers (AREA)
EP12193557.1A 2012-11-21 2012-11-21 Filière d'extrusion Active EP2735413B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP12193557.1A EP2735413B1 (fr) 2012-11-21 2012-11-21 Filière d'extrusion

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP12193557.1A EP2735413B1 (fr) 2012-11-21 2012-11-21 Filière d'extrusion

Publications (2)

Publication Number Publication Date
EP2735413A1 true EP2735413A1 (fr) 2014-05-28
EP2735413B1 EP2735413B1 (fr) 2017-06-28

Family

ID=47221210

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12193557.1A Active EP2735413B1 (fr) 2012-11-21 2012-11-21 Filière d'extrusion

Country Status (1)

Country Link
EP (1) EP2735413B1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108819170A (zh) * 2018-06-11 2018-11-16 太仓市兴益披覆有限公司 塑料挤出机
DE102012223349B4 (de) * 2011-12-21 2020-10-01 Nanostone Water Gmbh Mundstück eines Extruders zur Herstellung mindestens eines Formkörpers
US11034052B2 (en) 2015-03-13 2021-06-15 Nanostone Water Gmbh Mouthpiece for extruding a molding compound into a formed body, and method for producing a mouthpiece of this type

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB956632A (en) * 1962-04-18 1964-04-29 Kenneth William Lenton Improvements in and relating to the manufacture of building bricks with transversely-directed perforations or recesses
JPS57171614U (fr) * 1982-03-11 1982-10-28
DE3935894A1 (de) * 1989-10-27 1991-05-02 Ufotec Umformtechnologie Und V Kernhalterung fuer die herstellung von stranggepressten lochziegeln
JP2000176920A (ja) * 1998-12-16 2000-06-27 Sawatetsu:Kk 押し出し成形機用中子ユニット
EP2230057A1 (fr) * 2009-03-20 2010-09-22 Ziegelmundstückbau Braun GmbH Bec

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB956632A (en) * 1962-04-18 1964-04-29 Kenneth William Lenton Improvements in and relating to the manufacture of building bricks with transversely-directed perforations or recesses
JPS57171614U (fr) * 1982-03-11 1982-10-28
DE3935894A1 (de) * 1989-10-27 1991-05-02 Ufotec Umformtechnologie Und V Kernhalterung fuer die herstellung von stranggepressten lochziegeln
JP2000176920A (ja) * 1998-12-16 2000-06-27 Sawatetsu:Kk 押し出し成形機用中子ユニット
EP2230057A1 (fr) * 2009-03-20 2010-09-22 Ziegelmundstückbau Braun GmbH Bec

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012223349B4 (de) * 2011-12-21 2020-10-01 Nanostone Water Gmbh Mundstück eines Extruders zur Herstellung mindestens eines Formkörpers
US11034052B2 (en) 2015-03-13 2021-06-15 Nanostone Water Gmbh Mouthpiece for extruding a molding compound into a formed body, and method for producing a mouthpiece of this type
US11712817B2 (en) 2015-03-13 2023-08-01 Nanostone Water Gmbh Mouthpiece for extruding a molding compound into a formed body, and method for producing a mouthpiece of this type
CN108819170A (zh) * 2018-06-11 2018-11-16 太仓市兴益披覆有限公司 塑料挤出机

Also Published As

Publication number Publication date
EP2735413B1 (fr) 2017-06-28

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