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WO2011035752A1 - Passage tournant pour matériaux en grains - Google Patents

Passage tournant pour matériaux en grains Download PDF

Info

Publication number
WO2011035752A1
WO2011035752A1 PCT/DE2010/000879 DE2010000879W WO2011035752A1 WO 2011035752 A1 WO2011035752 A1 WO 2011035752A1 DE 2010000879 W DE2010000879 W DE 2010000879W WO 2011035752 A1 WO2011035752 A1 WO 2011035752A1
Authority
WO
WIPO (PCT)
Prior art keywords
wall
chute
rotary feedthrough
tube
annular space
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.)
Ceased
Application number
PCT/DE2010/000879
Other languages
German (de)
English (en)
Inventor
Eckardt Moeller
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.)
KNUTH WERKZEUGMASCHINEN GmbH
Original Assignee
KNUTH WERKZEUGMASCHINEN 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 KNUTH WERKZEUGMASCHINEN GmbH filed Critical KNUTH WERKZEUGMASCHINEN GmbH
Publication of WO2011035752A1 publication Critical patent/WO2011035752A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
    • B24C9/00—Appurtenances of abrasive blasting machines or devices, e.g. working chambers, arrangements for handling used abrasive material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
    • B24C3/00—Abrasive blasting machines or devices; Plants
    • B24C3/02—Abrasive blasting machines or devices; Plants characterised by the arrangement of the component assemblies with respect to each other
    • B24C3/04—Abrasive blasting machines or devices; Plants characterised by the arrangement of the component assemblies with respect to each other stationary
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
    • B24C7/00—Equipment for feeding abrasive material; Controlling the flowability, constitution, or other physical characteristics of abrasive blasts
    • B24C7/0046—Equipment for feeding abrasive material; Controlling the flowability, constitution, or other physical characteristics of abrasive blasts the abrasive material being fed in a gaseous carrier
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
    • B24C7/00—Equipment for feeding abrasive material; Controlling the flowability, constitution, or other physical characteristics of abrasive blasts
    • B24C7/0046—Equipment for feeding abrasive material; Controlling the flowability, constitution, or other physical characteristics of abrasive blasts the abrasive material being fed in a gaseous carrier
    • B24C7/0076—Equipment for feeding abrasive material; Controlling the flowability, constitution, or other physical characteristics of abrasive blasts the abrasive material being fed in a gaseous carrier the blasting medium being a liquid stream

Definitions

  • the invention relates to a rotary feedthrough for granular materials, in particular for supplying an abrasive to the water jet of a water jet cutting machine.
  • the water jet is supplied with an abrasive, such as quartz sand, in order to increase the cutting performance.
  • an abrasive such as quartz sand
  • so-called 3D heads are used that allow bevel cuts.
  • an additional horizontal axis is provided with a suitable drive.
  • the power for the drive, the water and the abrasive in the lower portion of the 3D head must be performed. If the 3D head follows a predetermined cutting contour which requires its repeated rotation about its vertical axis in one direction, in the prior art in which the abrasive is supplied via a hose, the cutting process must be interrupted after two to three complete rotations have been achieved be because the supply line for the abrasive is then completely wound up.
  • the invention is thus based on the object to provide a rotary feedthrough for granular materials, in particular for supplying an abrasive to the water jet of a water jet cutting machine, in which the rotation of the 3D head in one direction without limitation is possible.
  • a rotary feedthrough which is provided with a stationary upper part and a rotatably mounted on this lower part, wherein the upper part and the lower part are each provided with a particular implementation of water permitting central recess,
  • the lower part is provided with an outer wall spaced from the wall of its recess defining a cylindrical annular space
  • the upper part is provided with a supply tube whose outlet is flush with the annular space
  • the lower part with at least one in the cylindrical or semi-cylindrical annular space between wall and outer wall helical or ramp which opens in a discharge tube and which guides the granular material supplied via the supply tube to the annular space and onto the discharge tube, via which the abrasive is supplied to the water jet.
  • the rotary feedthrough consists of a stationary upper part 10 and a rotatably mounted on this lower part 12, wherein the lower part 12 is mounted on the upper part 10 by a bearing 30.
  • the upper part 10 and the lower part 12 are each provided with a passage, in particular of water pipes but also of power cables permitting central recess 14, 16.
  • the lower part il259Xnrier provided by the wall 18 in its recess under the definition of a cylindrical annular space 20 spaced outer wall 22; the upper part 10 has a supply tube 24, the outlet of which is aligned with the annular space 20.
  • the supply tube 24 is suitable for coupling a hose (not shown) which receives the feeding abrasive.
  • the lower part 12 is provided with a helical in the cylindrical annulus 20 between the wall 18 and outer wall 22, that is in the manner of a helix, ramp-like and opening into a discharge tube 26 chute.
  • the chute 28 guides the granular material supplied from the supply tube 24 to the annulus 20 and gravitationally thereto to the discharge tube 26 through which the abrasive is supplied to the water jet (not shown).
  • the space under the chute may be filled to give a semicircular descriptive ramp terminating at the discharge tube 26 or a chute inserted between the inner wall 18 and the outer wall 22 into the respective semi-circular annulus may be secured.
  • a slide shape can be reproduced even by means of previously introduced and solidified abrasive, which - in the case of a structure consisting of two half-cylinders (hereinafter referred to as a two-shell) as in the drawing - from an arbitrary 180 ° angular position feed tube 24 into the Delivery tube 26 Abrasive promotes.
  • a second, the illustrated (half) shell symmetrically corresponding shell is provided, both are connected to each other via suitable means (not shown).
  • the second shell also has a chute, so that irrespective of the respective position of the delivery tube 24, the abrasive discharged from it into the lower part passes via one of the chutes 28 into the discharge tube 26.
  • the abrasive can make its intended removal on the chute, it is proposed to form the chute from the full material of a full piece under the chute forming a thick wall, so that the outer wall and inner wall are two surfaces of a thick wall below the chute and only above the chute, a symmetrical semicircular annulus 20 extending in a semicircle substantially resembling the ramp shape of the chute is formed.
  • Another training - not shown - uses only a slide over a larger, approximately 360 ° comprehensive angle. Also, training with three or more chutes 28 and multiple feed 24 and in the first place several Abmhxrschreibchen 26 (namely as many as slides) are conceivable and should be the subject of protection.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)

Abstract

L'invention concerne un passage tournant pour matériaux en grains, notamment pour amener un abrasif vers un jet d'eau d'une installation de coupe à jet d'eau, comprenant une partie supérieure (10) fixe et une partie inférieure (12) montée sur celle-ci de manière à pouvoir tourner par rapport à celle-ci, la partie supérieure (10) et la partie inférieure (12) étant respectivement pourvues d'un évidement central (14, 16) permettant le passage notamment d'eau, la partie inférieure (12) étant pourvue d'une paroi extérieure (22) espacée de la paroi (18) de son évidement (16) en définissant un espace annulaire cylindrique (20), la partie supérieure (10) étant pourvue d'un petit tube d'amenée (24) dont la sortie est alignée sur l'espace annulaire (20), et la partie inférieure (12) étant pourvue d'au moins une goulotte (28) qui s'étend de manière hélicoïdale dans l'espace annulaire (20) entre la paroi (18) et la paroi extérieure (22) et débouche dans un petit tube d'évacuation (26) et qui conduit le matériau en grains amené du petit tube d'amenée (24) vers l'espace annulaire (20) et l'impactant vers le petit tube d'évacuation (26) par lequel l'abrasif est amené jusqu'au jet d'eau.
PCT/DE2010/000879 2009-09-28 2010-07-27 Passage tournant pour matériaux en grains Ceased WO2011035752A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE202009013061.4 2009-09-28
DE200920013061 DE202009013061U1 (de) 2009-09-28 2009-09-28 Drehdurchführung für körnige Werkstoffe

Publications (1)

Publication Number Publication Date
WO2011035752A1 true WO2011035752A1 (fr) 2011-03-31

Family

ID=41462141

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2010/000879 Ceased WO2011035752A1 (fr) 2009-09-28 2010-07-27 Passage tournant pour matériaux en grains

Country Status (2)

Country Link
DE (1) DE202009013061U1 (fr)
WO (1) WO2011035752A1 (fr)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004268168A (ja) * 2003-03-06 2004-09-30 Jfe Engineering Kk 切断装置
WO2008128303A1 (fr) * 2007-04-24 2008-10-30 Techni Waterjet Pty Ltd Machine de coupe améliorée à jet d'eau

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004268168A (ja) * 2003-03-06 2004-09-30 Jfe Engineering Kk 切断装置
WO2008128303A1 (fr) * 2007-04-24 2008-10-30 Techni Waterjet Pty Ltd Machine de coupe améliorée à jet d'eau

Also Published As

Publication number Publication date
DE202009013061U1 (de) 2009-12-31

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