EP3110528A1 - Verfahren und vorrichtung zum herstellen eines stützkorbs - Google Patents
Verfahren und vorrichtung zum herstellen eines stützkorbsInfo
- Publication number
- EP3110528A1 EP3110528A1 EP15705561.7A EP15705561A EP3110528A1 EP 3110528 A1 EP3110528 A1 EP 3110528A1 EP 15705561 A EP15705561 A EP 15705561A EP 3110528 A1 EP3110528 A1 EP 3110528A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- wire
- inner structure
- die
- winding
- support basket
- 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.)
- Withdrawn
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/01—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with flat filtering elements
- B01D29/018—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with flat filtering elements ring shaped
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/02—Particle separators, e.g. dust precipitators, having hollow filters made of flexible material
- B01D46/06—Particle separators, e.g. dust precipitators, having hollow filters made of flexible material with means keeping the working surfaces flat
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/11—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with bag, cage, hose, tube, sleeve or like filtering elements
- B01D29/13—Supported filter elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/0001—Making filtering elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2201/00—Details relating to filtering apparatus
- B01D2201/04—Supports for the filtering elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2201/00—Details relating to filtering apparatus
- B01D2201/60—Shape of non-cylindrical filtering elements
Definitions
- the present invention relates to a method and an apparatus for producing a support basket for a filter element.
- the invention also relates to such a support basket and equipped with such a support basket filter element.
- a support structure which is permeable to the medium to be filtered on the one hand and on the other hand has a higher stiffness than the filter material.
- a support structure may also be referred to as a support frame or support basket.
- annular filter elements which are flowed through radially by the medium to be filtered
- a support structure which is then also configured annularly, depending on the direction of flow of the filter element, be arranged radially inward or radially outward, so that the filter medium can be supported in the flow direction.
- annular filter element is equipped both radially inwardly and radially outwardly with such an annular support structure.
- annular support structure which is designed as a one-piece injection molded body and is made of plastic.
- a support basket which consists of a wire mesh structure.
- the preparation of this known support basket is carried out so that from a transverse to the production axis wire mesh roll on a rotating cylinder in the production axis spirally a wire mesh web is mounted, wherein abutting edges of the individual spiral windings are formed by adjacent wires and fixed by a pressed flat steel strip together. Alternatively, the abutting edges can also be welded together.
- the present invention addresses the problem of providing a way for an annular support basket suitable for use in an annular filter element which simplifies the production of different variants.
- the present invention thus addresses the problem of providing an improved embodiment for a method and / or a device for producing such a support basket, which is characterized in particular by a simplified variant formation for the support basket.
- the invention is based on the general idea to produce the support basket with an inner structure of wire and a wire outer structure, such that form between the inner structure and the outer structure a plurality of contact points in which touch the wires of the inner structure and the outer structure.
- the outer structure and the inner structure are attached to each other by being welded together at least in some of the aforementioned contact points.
- at least one of the structures is wound with respect to a longitudinal central axis of the support basket, that is to say formed from at least one helically extending wire.
- Both the inner structure and the outer structure can be geometrically produced in virtually any shape, in particular cylindrical and conical, with different axial lengths, different radii and different cone angles can be realized. It is always possible to produce a stable support basket by welding the inner structure to the outer structure. By using wires or wire for producing the inner structure or the outer structure, the stiffness of the support basket can also be adjusted as desired via the spacing of adjacent wires or wire sections.
- the outer structure is welded to the inner structure at contact points in which the outer structure contacts the inner structure by means of a welding tool of the welding device.
- the application of the inner structure to the die and / or the application of the outer structure to the inner structure can be carried out by winding the respective wire.
- at least one wire is wound onto the die to produce the inner structure, ie can be arranged helically on the die.
- the outer structure can be produced by winding at least one wire helically on the inner structure or on the die.
- the wires for producing the inner structure and / or the outer structure may be made of an electrically conductive material, for example of a metal or a metal alloy. It is also possible to produce the wires of plastic, as well as plastics are welded together.
- an embodiment in which the welding of the outer structure to the inner structure takes place immediately upon winding up of the outer structure onto the inner structure is particularly advantageous. As a result, the effort for holding and positioning the outer structure on the inner structure can be reduced.
- the die may be designed to be electrically conductive at least in the region of the respective wire of the inner structure.
- the welding of the inner structure with the outer structure is then carried out electrically appropriately, ie by means of an electric welding technique.
- resistance welding or arc welding may be performed.
- the die or the electrically conductive regions of the die can serve as a ground connection during the electric welding, whereby the welding process is simplified.
- the inner structure may be formed by a plurality of, in particular straight, pieces of wire which are distributed in the circumferential direction and spaced from each other on the die in the circumferential direction. This gives the internal structure a particularly simple geometry.
- the die for each piece of wire may have an electrically conductive wire piece receiving, in which the respective wire piece is axially and / or radially insertable.
- the arrangement of the wire pieces on the die simplifies.
- the die for this purpose contain at least one electromagnet or permanent magnet.
- the inner structure onto the die and to wind the outer structure onto the inner structure it is also conceivable to wind the inner structure onto the die and to wind the outer structure onto the inner structure.
- the at least one wire used to make the inner structure is wound on the die while the at least one wire used to make the outer structure is wound on the inner structure.
- a wound structure makes it possible to use only a single wire for the inner structure as well as for the outer structure, which simplifies the production of the respective structure. It is also conceivable to use a single common wire to form the inner structure and the outer structure.
- an inner winding forming the inner structure can have a different pitch than the outer structure forming outer winding.
- an inner winding forming the inner structure and an outer winding forming the outer structure are wound in opposite directions of rotation.
- the inner winding and the outer winding may have the same or different slopes. Due to the opposite direction of rotation during winding, contact points inevitably occur between the inner structure and the outer structure.
- the respective winding can end closed at least at one axial end of the support basket. At a closed end of the winding, the last turn of the winding has no slope, resulting in a closed ring. As a result, the respective axial end of the support basket is stabilized.
- a welding device is characterized in detail by a die, a wire feed and a welding head.
- the die is arranged rotatably about a rotation axis on a console of the welding device.
- the wire feed is linearly adjustable parallel to the axis of rotation relative to the die.
- the wire feeder allows the feeding of a wire for winding onto the die.
- the welding head is adjustable relative to the die. Furthermore, the welding head, the contact points in which wires or
- the welding head of the welding device accordingly forms a welding tool, with which the outer structure can be welded to the inner structure in said contact points.
- the welding head can be designed to be linearly adjustable relative to the die parallel to the axis of rotation. This results in a particularly simple construction for the welding device.
- the die may be designed to be electrically conductive at least in the region of the respective wire of the inner structure.
- the welding head is expediently designed to carry out an electrical welding technique.
- the die for several, preferably straight, wire pieces each having an electrically conductive wire piece receiving, in which the respective wire piece is axially and / or radially insertable. This measure also leads to a simpler handling of the welding device.
- the insertion of the wire pieces in the wire piece receiving can be done manually. It is also conceivable that the welding device can be designed with a corresponding manipulation device, for example with a robot arm.
- An inventive annular support basket which is suitable for use in an annular filter element, has an annular inner structure of at least one wire and an annular outer structure of at least one wire which is helically wound on the inner structure. Furthermore, the outer structure is welded to the inner structure in contact points in which the outer structure contacts the inner structure. In this case, the outer structure does not have to be welded to the inner structure in all contact points between outer structure and inner structure. For a sufficient stability it is enough out when such a welded joint is produced at several contact points.
- the inner structure may be formed by a plurality of, preferably rectilinear, pieces of wire which are distributed in the circumferential direction and spaced apart in the circumferential direction.
- the outer structure is helically wound on the inner structure.
- both the inner structure and the outer structure are wound.
- an inner winding forming the inner structure may have a different pitch than an outer winding forming the outer structure.
- an inner winding forming the inner structure and an outer winding forming the outer structure may be wound in opposite directions of rotation. If the inner structure is wound, it may conveniently be made of a single, continuous wire. If the outer structure is wound, it can be made of a single, continuous wire. If the inner structure and the outer structure are wound, two separate wires can be used for winding the inner structure and for winding the outer structure, which can in particular also differ from each other by different diameters. It is also possible to use a single, continuous wire to wind the inner structure and to wind the outer structure.
- the inner winding or the outer winding can end closed at least at one axial end of the support basket, ie in a closed circumferential ring.
- An inventive annular filter element has an annular filter body of a filter material, and has at least one support basket of the aforementioned type, on which the filter body is radially supported. Depending on the direction of flow of the filter element during operation of the support basket can be arranged radially inside or radially outside of the filter body. However, an embodiment is also conceivable in which a support basket is arranged on the filter body both radially inward and radially outwardly.
- FIG. 2 is a greatly simplified axial view of the welding device according to a viewing direction II in Fig. 1, Fig. 3 simplified plan view of such a welding device
- Fig. 4 is a side view of a support basket
- Fig. 5 is a highly simplified cross section of a filter element which is equipped with such a support basket.
- a welding device 1 with the aid of which a support basket 2 shown in FIGS. 4 and 5 can be produced for a filter element 3 shown in FIG. 5, a die 4, a wire feed 5 and a welding head 6.
- the die 4 is configured conical or frustoconical in the examples shown here. In principle, the die 4 can also be configured cylindrically.
- the die 4 is rotatably arranged about a rotation axis 7 on a bracket 8 of the welding device 1.
- a drive motor 9 may be provided for rotating driving of the die 4.
- the wire feed 5 is parallel to the axis of rotation 7 relative to the die 4 linearly adjustable.
- the welding device 1 may have a linear unit 10, on which the wire feed 5 is arranged to be adjustable.
- the linear adjustability of the wire feed 5 along the linear unit 10 is indicated in Fig. 1 by a double arrow 1 1.
- the linear unit 10 may consist of a simple rectilinear rod or tube.
- the linear unit 10 may in particular comprise a spindle drive for linear adjustment of the wire feed 5.
- the wire feeder 5 is also configured to feed a wire 12 to the die 4.
- the wire feed 5 for this purpose comprises a recognizable in Fig. 2 straightening unit 13, which is also combined with a cutting unit 14.
- the wire feed 5 according to FIG. 2 can comprise a guide unit 15. By a suitable rotational speed of the die 4 and a suitable linear propulsion of the wire feed 5, the wire 12 can be helically wound on the die 4.
- the welding head 6 is also adjustable relative to the die 4. Furthermore, the welding head 6 is designed for producing welded joints in contact points 16, in which two wires 12, 17 or two wire sections of the wires 12, 17 touch. In Fig. 2, an arc 18 is indicated to symbolize the welding process.
- the welding head 6 is expediently also adjustable parallel to the axis of rotation 7 relative to the die 4. In particular, the same linear unit 10 can be used for this purpose.
- the wire feed 5 and the welding head 6 form an assembly which is linearly adjustable along the linear unit 10 in a uniform manner.
- the welding device 1 can also be equipped with a further wire feed 20, which feeds the aforementioned wire 17 to the die 4.
- This additional wire feed 20 allows a linear feeding of the wire 17.
- This further wire feed 20 may also be equipped with a straightening unit 21 and a cutting unit 22.
- the further wire feed 20 is also arranged parallel to the axis of rotation 7 relative to the die 4 according to a double arrow 23 adjustable.
- the wire 17 can be fed in such a way that straight-line wire pieces are produced, which are also referred to below as 17.
- the straight wire pieces 17 are placed in a straight line on the die 4, so that they lie in a plane in which the axis of rotation 7 is located.
- the die 4 is designed to be electrically conductive at least in the region of the wire pieces 17.
- the wire piece receivers 25 are made of an electrically conductive material.
- a ground connection 26 of the welding device 1 can be electrically conductively connected to the wire piece receptacles 25. It can be provided that the ground terminal 26 is arranged eccentrically with respect to the axis of rotation 7 on the console 8, such that the ground terminal 26 is electrically connected only to that piece of wire receiving 25 whose wire piece 17 is to be welded to the wound wire 12.
- the support basket 2 has an inner structure 27, which consists of at least one wire 17. Furthermore, the support basket 2 has an outer structure 28, which also consists of at least one wire 12.
- the outer structure 28 contacts the inner structure 27 in the aforementioned contact points 16. At least in some of these contact points 16 or in all contact points 16, the outer structure 28 is welded to the inner structure 27.
- the inner structure 27 is formed of a plurality of straight wire pieces 17, which are distributed in the circumferential direction 24 and spaced apart in the circumferential direction 24.
- the outer structure 28 is formed by winding the wire 12 onto the inner structure 27, thereby having an outer winding 29.
- the outer winding 29 points to the axial ends 30, 31 of the support basket 2 each have a closed winding end, which is formed in each case by a ring in the circumference 24 closed ring 32 and 33 respectively.
- the respective ring 32, 33 lies in a direction perpendicular to the longitudinal central axis 34 of the support basket 2 extending plane.
- the inner structure 27 is formed of four straight wire pieces 17, while the outer structure 28 is formed of a single wire 12 which extends helically over the entire axial length of the support basket 2.
- the inner structure 27 may be formed by such a wire winding, which then expediently has a different pitch than the outer winding 29. Additionally or alternatively, the inner winding and the outer winding 29 may be wound in opposite directions of rotation.
- the annular filter element 3 comprises an annular filter body 35 made of a filter material and an annular support basket 2.
- the filter element 3 can be flowed through radially from outside to inside, which is indicated by flow arrows 36.
- a crude side 37 is located outside the filter body 35 during operation of the filter element 3, while a clean side 38 is then located inside the filter body 35.
- the support basket 2 is expediently arranged radially on the inside of the filter body 35 so that the filter body 35 can be supported radially on the support basket 2.
- the support basket 2 is then expediently arranged radially on the outside of the filter body 35.
- a support basket 2 is carried out according to the figures 1 to 3 preferably such that initially the inner structure 27 is applied from at least one wire 17 to the die 4.
- four wire pieces 17 are thus distributed evenly distributed in the circumferential direction 24 on the die 4 so as to form the inner structure 27.
- the feeding of the wire pieces 17 takes place, for example, by means of the further wire feed 20.
- the outer structure 28 is applied from the wire 12 to the inner structure 27.
- the wire 12 is wound helically on the die 4 and thus also on the inner structure 27.
- the helical winding takes place by a corresponding coordination between the rotation of the die 4 and the linear adjustment of the wire feed 5.
- the contact points 16 are formed.
- the outer structure 28 can now be welded to the inner structure 27 in the region of these contact points 16. This can be done expediently already during the winding of the outer structure 28 on the inner structure 27, whereby costly holding means for positioning the outer structure 28 on the inner structure 27 accounts.
- a closed ring 32 or 33 can be generated at the beginning and at the end of the winding process of the outer structure 28 to produce a closed axial end 30, 31 of the support basket 2.
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Wire Processing (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102014203719.0A DE102014203719A1 (de) | 2014-02-28 | 2014-02-28 | Verfahren und Vorrichtung zum Herstellen eines Stützkorbs |
| PCT/EP2015/052943 WO2015128197A1 (de) | 2014-02-28 | 2015-02-12 | Verfahren und vorrichtung zum herstellen eines stützkorbs |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP3110528A1 true EP3110528A1 (de) | 2017-01-04 |
Family
ID=52544473
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP15705561.7A Withdrawn EP3110528A1 (de) | 2014-02-28 | 2015-02-12 | Verfahren und vorrichtung zum herstellen eines stützkorbs |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP3110528A1 (de) |
| CN (1) | CN106029198A (de) |
| DE (1) | DE102014203719A1 (de) |
| WO (1) | WO2015128197A1 (de) |
Family Cites Families (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2512781C3 (de) * | 1975-03-22 | 1978-09-14 | Boll & Kirch Filterbau Gmbh, 5000 Koeln | Filterkerze mit riickspülbare Filterapparate |
| US4141128A (en) * | 1978-01-16 | 1979-02-27 | The Air Preheater Company, Inc. | Filter bag cage |
| DE2855538A1 (de) * | 1978-12-22 | 1980-07-10 | Buckau Wolf Maschf R | Verfahren zum herstellen eines konischen siebkorbes |
| DE3311324A1 (de) | 1983-03-29 | 1984-10-11 | Jan H. vom 4156 Willich Baur | Fertigungsverfahren fuer filterstuetzkoerbe |
| US4494603A (en) * | 1983-10-19 | 1985-01-22 | Uop Inc. | Wire mesh well screen with welded wire support |
| DE3921369C2 (de) | 1988-06-29 | 1998-10-15 | Sartorius Gmbh | Rohrförmiger Stützkörper für patronenförmige Filterelemente |
| US5118421A (en) * | 1989-08-24 | 1992-06-02 | Albany International Corp. | Cylndrical filter media with support structure |
| DE4016206A1 (de) * | 1990-05-19 | 1991-11-21 | Roesler Soest Draht Gmbh | Stuetzmatte aus draht fuer taschenfilter von filteranlagen |
| DE4305547C2 (de) * | 1993-02-24 | 2002-04-04 | Rhodius Gmbh | Drahtgestrickschlauch sowie Verfahren und Vorrichtung zu dessen Herstellung |
| DE4436228A1 (de) | 1994-05-18 | 1996-04-18 | Knecht Filterwerke Gmbh | Rohrförmiger Stützkörper für einen ringförmigen Filtereinsatz |
| DE19652603A1 (de) | 1996-12-18 | 1998-06-25 | Knecht Filterwerke Gmbh | Rohrzarge zur Aufnahme eines Ringfilterelementes |
| DE19711589A1 (de) * | 1997-03-20 | 1998-09-24 | Hydac Filtertechnik Gmbh | Spaltsiebrohrfilterelement sowie Rückspülfiltervorrichtung zur Aufnahme desselben |
| JP2002355510A (ja) * | 2001-05-30 | 2002-12-10 | Sanshu Densen Kk | 濾過フィルター及びその製造装置 |
| DE10220273A1 (de) * | 2002-05-07 | 2003-11-27 | Hydac Process Technology Gmbh | Verfahren zum Herstellen von konischen Filterelementen |
-
2014
- 2014-02-28 DE DE102014203719.0A patent/DE102014203719A1/de not_active Withdrawn
-
2015
- 2015-02-12 EP EP15705561.7A patent/EP3110528A1/de not_active Withdrawn
- 2015-02-12 WO PCT/EP2015/052943 patent/WO2015128197A1/de not_active Ceased
- 2015-02-12 CN CN201580009091.8A patent/CN106029198A/zh active Pending
Non-Patent Citations (2)
| Title |
|---|
| None * |
| See also references of WO2015128197A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106029198A (zh) | 2016-10-12 |
| WO2015128197A1 (de) | 2015-09-03 |
| DE102014203719A1 (de) | 2015-09-03 |
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