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
  • B28B3/2672—Means for adjusting the flow inside the die, e.g. using choke means
• • 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 press head for extrusion of ceramic Industry, which can be used to influence the internals in the end area of the Press head arranged mouthpiece has to be molded clay strand.
• the object of the invention is therefore a press head for extrusion of the aforementioned Art to create, by means of which it is possible, the clay strand in the press head preform and influence its flow direction so that the clay strand immediately is fed to the mouthpiece without increasing flow resistance are overcome.
• adjustments to different should be made without difficulty large mouthpieces and also made of different materials furthermore it should be possible to do this during production To influence the flow behavior of the clay string.
• this is the beginning of a press head for extrusion mentioned genre accomplished in that provided in the press head Internals by at least two oppositely arranged and in Direction of flow of the clay strand formed inclined guide plates are, which can be rotated in a limited manner in order to adjust the angle of inclination attached to the press head mounted shaft or articulated with two axially adjustable the press head held adjusting spindles are connected, and that the shafts at least on one side or the adjusting spindles together on the outside of the press head are supported on this.
• the guide plates on the end face facing the extrusion press welded to the shafts and the shafts on one side in one in the jacket of the press head incorporated bore and / or in an attached to this Bearing plate and on the other side rotatably in a bore of the jacket and lead them out, and at the end protruding from the press head Shafts each attach a support plate, which is held on the press head Support members cooperates, the support members each by at least two in Flow direction with a lateral distance to each other in a on the jacket of the Press head attached counter bearing adjustable support bolts can be formed can.
• the support plates should be designed as a pointer on one side, on which attached scalings are assigned to the jacket of the press head.
• the shafts carrying the guide plates can be transverse to Flow direction of the clay strand, preferably perpendicular to this, adjustable be held in the press head.
• each are in the jacket of the press head incorporate oppositely arranged slot-like recesses in which the Waves are slidably guided, and the waves are on both sides in one Support the bearing plate, which is parallel to the recesses of the press head Provide running elongated holes for receiving fastening screws and on which are attached to the support members on one or both sides.
• the guide plates can each at the same height or in pairs opposite each other in Flow direction offset from each other, for example by the projected length of the Leitplatten be arranged.
• a press head for extrusion presses is designed according to the invention, it is with the help of the conductive plates used in these without difficulty, the clay strand can be influenced from the outside in a simple manner and immediately during production to feed the mouthpiece without the clay strand being jammed and thus high Flow resistances have to be overcome. An optimal feeding of the clay string too the mouthpiece is therefore guaranteed.
• Can also be attached to a press head differently designed mouthpieces can be grown using the stepless adjustable baffles can easily be adjusted accordingly Tonstranges be made to the mouthpiece used. And there the respective angular position of the guide plates on the press head is easily recognizable, this is also reproducible and can be changed in a short time when changing the mouthpiece respectively. The operating behavior when pressing out is thus with little construction effort Improve moldings and the area of application of a trained trained Press head must be enlarged.
• the press head shown in Figures 1 to 3 and each designated 1 is on one Extruded press of the ceramic industry, not shown, is used for Feeding a clay strand to one inserted into the free end of the press head 1 Mouthpiece 10, by means of which the clay strand pressed by the press head 1 is formed becomes.
• the press head 1 consists of a rectangular in cross section conical tapered jacket 2 and two flanges 3 and 4 attached to it, by means of to which the press head 1 on the extrusion press or the mouthpiece 10 on the press head 1 attach is.
• the press head 1 With internals 11, each as two each other oppositely arranged and adjustably mounted guide plates 12 and 12 ' are trained.
• the guide plates 12 and 12 ' are on the ends of shafts 13 and 13', respectively welded, which are rotatably held in the jacket 2 of the press head 1.
• the bore 6 is a Assigned bearing plate 5 which receives one end of the shafts 13 and 13 ', the the other end, however, is led out of the jacket 2 and on the outside of the Press head 1 supported. As can be seen in particular from FIG. 2, this becomes by means of a respective support plate 14 attached to the shafts 13, 13 ' cooperate with support members 15.
• the support members 15 are in the form of welded to the lack 2 counter bearing 16 formed by plates into which support bolts 17 are located at a lateral distance from one another are screwed in.
• the support bolt 17 By turning the support bolt 17, the inclination of the Guide plates 12, 12 'are changed.
• the support plates 14 in an end region as Pointers 18 are formed and a scale 19 is assigned to them with the help the support bolt 17 not only the angle of inclination of the guide plates 12, 12 'from the outside also easily adjusted during the production process and thus changed Operating conditions adapted, but also determined and depending on the used mouthpiece 10 are committed.
• slots 8 are incorporated in the jacket 2 of the press head 1, in which the shafts 13 and 13 'are slidably guided.
• the bearing plates 31 and 31 'and with these the shafts 12 and 12 'and the guide plates 13 and 13' attached to them offset more or less perpendicular to the direction of flow S of the clay stick will.
• each two Threaded spindles 43 and 43 ' are provided as adjusting members, which by means of joint plates 46 are articulated to the guide plates 42 and 42 '.

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)

Applications Claiming Priority (2)

Publications (1)

Family

ID=7833489

Family Applications (1)

Country Status (2)

Cited By (4)

Citations (4)

• 1997
  • 1997-06-24 DE DE1997126776 patent/DE19726776A1/de not_active Withdrawn
• 1998
  • 1998-05-15 EP EP98108874A patent/EP0887164A1/fr not_active Withdrawn

Patent Citations (4)

Non-Patent Citations (1)

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