EP4499262A1 - GIEßSCHALE FÜR EINE GIEßVORRICHTUNG UND VERFAHREN ZUM HERSTELLEN EINES FILTERELEMENTS - Google Patents
GIEßSCHALE FÜR EINE GIEßVORRICHTUNG UND VERFAHREN ZUM HERSTELLEN EINES FILTERELEMENTSInfo
- Publication number
- EP4499262A1 EP4499262A1 EP23704969.7A EP23704969A EP4499262A1 EP 4499262 A1 EP4499262 A1 EP 4499262A1 EP 23704969 A EP23704969 A EP 23704969A EP 4499262 A1 EP4499262 A1 EP 4499262A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- filter body
- bowl
- pouring
- cover parts
- groove
- 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.)
- Pending
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
- B29C39/00—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor
- B29C39/22—Component parts, details or accessories; Auxiliary operations
- B29C39/26—Moulds or cores
-
- 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
- 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
- B01D46/04—Cleaning filters
-
- 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
- B01D46/10—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces
-
- 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
- B29C39/00—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor
- B29C39/02—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor for making articles of definite length, i.e. discrete articles
- B29C39/026—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor for making articles of definite length, i.e. discrete articles characterised by the shape of the surface
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2271/00—Sealings for filters specially adapted for separating dispersed particles from gases or vapours
- B01D2271/02—Gaskets, sealings
- B01D2271/025—Making of sealings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/14—Filters
Definitions
- the invention relates to a pouring bowl for producing a filter element for filtering a fluid with a filter body, a pouring device with a pouring bowl and a method for producing a filter element for filtering a fluid with a filter body with a pouring bowl.
- casting shells for attaching an end plate and/or seal to a filter element consist of two separate halves or parts, a lower shell and an upper shell, which are positioned one on top of the other. Both shells are sprayed or wetted with release agent so that the cast or foamed end plate and/or seal, for example made of polyurethane (PUR), can be easily removed from the mold after casting and no PUR residue remains.
- PUR polyurethane
- an apparatus for producing a filter element comprising: a mold having a plurality of divided molds that form a cavity by being clamped so that a resin material is foamed in the cavity to form a sealing part on an outer peripheral edge of a To form the filter material integrally.
- the mold is disposed between the cavity and a gap between the plurality of split mold mating surfaces when foaming the resin material and allows air to pass from the cavity to the gap.
- the device further comprises a regulating element for regulating the passage of a resin material during foaming.
- a device for producing an air filter which comprises a lower pouring bowl and an upper pouring bowl, which are pivotally connected to one another.
- the upper pouring bowl comprises a frame which, when the device is closed, encloses a filter body placed on the lower pouring bowl.
- the frame has four side walls which surround the filter body on all sides, the entire frame being displaceable relative to a base body of the upper casting bowl by a drive device.
- An object of the invention is to provide an improved pouring cup for making a filter element for filtering a fluid having a filter body with a molded seal and/or end plate.
- Another object is to provide a pouring device with such an improved pouring bowl.
- Another object is to provide a method of manufacturing a filter element for filtering a fluid having a filter body and a molded seal and/or end plate with such an improved pouring cup.
- the aforementioned object is achieved according to one aspect of the invention by a pouring bowl with the features of claim 1.
- the further object is solved by a method for producing a filter element for filtering a fluid with the features of claim 14.
- a casting bowl for producing a filter element for filtering a fluid with a filter body and a seal and/or end plate that at least partially surrounds the filter body.
- the casting bowl comprises a receiving bowl for holding a casting material in a groove with a storage surface for the filter body and a cover with at least two cover parts which are arranged to be movable separately from one another relative to the receiving bowl and which release the groove in a first position and the groove in a second position as intended essentially cover the inserted filter body.
- An underside of the at least two cover parts, which in the second position faces a cavity formed by the groove, is designed to form a sealing surface or functional surface of the seal or end disk, so that an overhead sealing surface or functional surface on the end disk and / or or seal can be realized.
- the filter body is preferably formed as a bellows made of a filter medium folded in a zigzag shape.
- cover parts can each independently carry out a movement with different degrees of freedom of movement, for example a different translational and/or rotational movement.
- a kinematic coupling between the movements of the individual cover parts for example through a common drive.
- the at least two cover parts are arranged to be movable separately from one another relative to the receiving shell, since this significantly facilitates the casting process for very high filter bodies, in particular for folded filter bodies with large fold heights.
- casting devices known from the prior art which have an upper shell pivotably articulated on a lower shell, this is no longer possible from a certain limit height of the filter body, since the upper shell would collide with the filter body when pivoting.
- the pouring bowl of the present invention allows seals and/or end plates to be formed on filter bodies with any height dimensions and is characterized by a very compact design.
- a single casting bowl is proposed which has one or more pivotable or otherwise displaceable components.
- pivotable or otherwise displaceable components form, so to speak, an “upper shell” when folded.
- the components can be swiveled by up to 180°, so optimal application of the release agent is possible.
- a locking of the pivotable or otherwise displaceable parts during the casting process can be achieved, for example, by mechanical locking or by means of a magnetic device in order to ensure the foam counterpressure during the casting process. In this way, an overhead sealing surface or functional surface on the PUR end plate and/or seal can be conveniently implemented within the casting bowl.
- an arrangement with displaceable components can also be provided.
- the application of the release agent is somewhat more complex.
- the receiving shell and the at least two cover parts enclose a cavity formed by the groove, which serves to attach an at least partially circumferential seal to an outer edge of an end face of the filter body.
- the seal can be produced, for example, by casting, foaming or foaming a plastic, in particular PUR.
- the seal is preferably designed to be completely circumferential.
- An advantage of the proposed casting shell is that no separate casting upper shell is necessary, which simplifies handling and/or logistics in a production line. Furthermore, only a one-time process is required to apply the release agent into the casting tray, which speeds up production. Further functional surfaces and/or sealing surfaces can advantageously be implemented on existing systems that are not designed for pouring bowls with a separate upper shell. This allows the manufacturing process to be simplified and made more cost-effective.
- the at least two cover parts can each be mounted on the receiving bowl in a movable manner separately from one another.
- each of the cover parts has its own degree of freedom of movement relative to the receiving shell, which is different from the other cover parts.
- the groove can have a groove wall on its inside which is lower than a groove wall on its outside and which has the storage area for the filter body on the inside groove wall.
- the storage area for the filter body can be designed to be horizontal. In this way, the filter body can be safely placed on the receiving tray for the potting process.
- the groove can advantageously be formed all around the receiving shell.
- the filter body placed on the storage surface seals the groove from the interior so that the casting material remains in the cavity formed by the groove and the filter body.
- the pouring bowl can be ring-shaped, for example or be rectangular.
- the pouring bowl can, for example, be pot-shaped with a bottom.
- the at least two cover parts can each be arranged on the receiving bowl so as to be pivotable about their own axis arranged parallel to the storage surface for the filter body.
- the at least two cover parts can each be pivotable through 180°.
- the cover parts can advantageously be sprayed or wetted with release agent in order to be able to safely demold the filter element with the foamed seal.
- the pivot axes of the two cover parts can run parallel in versions, but in this case they are spaced apart from one another. Under no circumstances do the pivot axes of the two cover parts coincide.
- the at least two cover parts can each be arranged on the receiving bowl parallel to the storage surface for the filter body and can be displaced in different directions.
- an arrangement with sliding components can also be provided.
- Such a design is particularly advantageous if the shape of the filter element does not provide the installation space for foldable cover parts.
- the directions in which the two cover parts can be moved parallel to the storage surface can be directed parallel in versions but point in different directions.
- a combination of pivotable and movable cover parts is also advantageously possible.
- a fastening device can be present with which the at least two cover parts can be fixed in the second position.
- the fastening device can be a mechanical fastening device and/or a magnetic fastening device. Locking of the foldable parts during the casting process can be achieved, for example, by mechanical locking or by means of a magnetic device in order to ensure foam counter-pressure during the casting process. In this way, an overhead sealing surface or functional surface on the PUR end plate and/or seal can be conveniently implemented within the casting bowl.
- the at least two cover parts in the second position can provide a free space in the pouring bowl that is larger than a cross section of the filter body that is properly inserted into the pouring bowl.
- the filter body used as intended can be spaced with a gap from the closed cover parts.
- the casting material can advantageously be foamed onto the filter body and form a certain protrusion between the actual sealing surface and the filter body.
- side surfaces of the at least two cover parts which in the second position adjoin an outside of the filter body, can have complementary shapes be formed on the outside of the filter body.
- the at least two cover parts can advantageously seal the cavity formed by the groove against the filter body during the casting process.
- adjacent end faces of the at least two movable cover parts can connect tightly to one another in the second position.
- the cavity formed by the groove can be reliably sealed against the filter body during the casting process.
- a casting device with a casting bowl comprising a receiving bowl for receiving a casting material in a groove with a storage surface for the filter body and a cover with at least two cover parts which are arranged to be movable separately from one another relative to the receiving bowl, which in release the groove in a first position and essentially cover the groove in a second position with the filter body inserted as intended, and wherein an underside of the at least two cover parts, which faces the cavity in the second position, is designed to form a sealing surface or functional surface of the seal.
- the casting device further comprises a metering device with which casting material can be filled into the groove of the receiving bowl of the casting bowl.
- an overhead sealing surface or functional surface on the PUR end disk and/or seal can be conveniently realized within the pouring bowl.
- the at least two movably arranged cover parts are designed to be pivotable or displaceable separately from one another.
- the receiving shell and the at least two cover parts enclose a cavity formed by the groove, which serves to attach an at least partially circumferential seal to an outer edge of an end face of the filter body.
- the seal can be produced, for example, by casting, foaming or foaming a plastic, in particular PUR.
- An advantage of the proposed casting device is that no separate casting upper shell is necessary, which simplifies handling and/or logistics in a production line. Furthermore, only a one-time process is required to apply the release agent into the casting tray, which speeds up production. Further functional surfaces and/or sealing surfaces can advantageously be implemented on existing systems that are not designed for pouring bowls with a separate upper shell. This allows the manufacturing process to be simplified and made more cost-effective.
- the at least two cover parts can be formed tightly adjacent to the filter body that is inserted into the casting bowl as intended.
- the at least two cover parts can be designed to be closely adjacent at least in some areas. In this way, when the filter body is inserted, the at least two cover parts can advantageously seal the cavity formed by the groove against the filter body during the casting process.
- the at least two cover parts can be designed to be spaced apart with a gap from the filter body inserted as intended into the casting bowl.
- the at least two cover parts can be designed to be spaced from the filter body with a gap at least in some areas.
- the casting material can advantageously be foamed onto the filter body and form a certain protrusion between the actual sealing surface and the filter body.
- the casting device can include a hold-down device for fixing the filter body in the casting bowl during the casting process. This can prevent the filter body from floating due to the foamed casting material during the casting process and thus resulting in excessive tolerances during the casting process.
- a method for producing a filter element for filtering a fluid with a filter body with a pouring bowl, the pouring bowl having a receiving bowl for receiving a pouring material in a groove with a storage surface for the filter body and a cover with at least two has cover parts that are movable separately from one another relative to the receiving shell, which in a first position release the groove and in a second position essentially cover the groove with the filter body inserted as intended, and wherein an underside of the at least two cover parts, which faces the cavity in the second position , is designed to form a sealing surface or functional surface of the seal.
- the filter body in a first position of the cover parts, is placed with one end face onto the receiving bowl as intended, so that the filter body with an outer edge at least partially protrudes into a groove in the pouring bowl.
- the at least two cover parts are moved separately from one another into the second position and the receiving shell and the at least two cover parts enclose a cavity formed by the groove in the second position.
- the cavity advantageously serves to attach an at least partially circumferential seal to the outer edge of the end face of the filter body.
- the receiving shell and the at least two cover parts enclose a cavity formed by the groove, which serves to attach an at least partially circumferential seal to an outer edge of an end face of the filter body.
- the seal can be produced, for example, by casting, foaming or foaming a plastic, in particular PUR.
- An advantage of the proposed method with the casting shell is that no separate casting upper shell is necessary, which simplifies handling and/or logistics in a production line. Furthermore, only a one-time process is required to apply the release agent into the casting tray, which speeds up production. Further functional surfaces and/or sealing surfaces can advantageously be implemented on existing systems that are not designed for pouring bowls with a separate upper shell. This allows the manufacturing process to be simplified and made more cost-effective. In addition, by removing the covers in the lateral direction, it is possible to attach seals to sloping end faces or inclined filter bellows.
- the method can include: filling the groove with a particularly foamable casting material, in particular polyurethane; moving the at least two cover members from the first position to the second position; Inserting the filter body; Forming the seal on the outer edge of the end face of the filter body; back moving the at least two cover parts to the first position; Remove the filter body from the storage area of the holder tray.
- the seal is formed automatically by foaming the casting material in the groove. In this way, the seal of the filter element can be produced very efficiently and cost-effectively, since in particular the handling of the pouring bowl with movable cover parts is much easier and sealing surfaces or functional surfaces can also be realized very reliably.
- the inner surfaces of the groove and undersides of the at least two cover parts can be provided with a release agent before the filter body is placed on the receiving shell.
- the seal of the filter element can be produced very efficiently, since in particular the application of the release agent before the actual casting process is made easier by the movable cover parts.
- the filter body after the filter body has been placed on the receiving shell, the filter body can be fixed with a hold-down device, which is removed again before the filter body is removed from the receiving shell. This can prevent the filter body from floating due to the foamed casting material during the casting process and thus resulting in excessive tolerances during the casting process.
- FIG. 1 is a top view of a casting device with a casting bowl according to an exemplary embodiment of the invention
- FIG. 2 shows a top view of a casting device with a casting bowl according to a further exemplary embodiment of the invention
- 3 shows a longitudinal section through the casting device according to FIG. 2 with an attached filter element and a partially foamed seal;
- FIG. 4 shows a longitudinal section through the casting device according to FIG. 2 with an attached filter element of a different design and a foamed seal;
- FIG. 5 shows a top view of a casting device with a casting bowl according to a further exemplary embodiment of the invention
- FIG. 6 shows a longitudinal section through the casting device according to FIG. 5 with the filter element attached
- Fig. 7 shows a longitudinal section through the casting device according to Figure 5 with the filter element and foamed seal attached.
- Figure 1 shows a top view of a casting device 100 with a casting bowl 40 according to an exemplary embodiment of the invention.
- Figure 2 shows a top view of a casting device 100 with a pouring bowl 40 according to a further exemplary embodiment of the invention, while in Figure 3 a longitudinal section through the casting device 100 according to Figure 2 with an attached filter element 10 and a partially foamed seal 20 is shown.
- the casting device 100 is used to produce a filter element 10 for filtering a fluid with a filter body 12 and has a casting bowl 40 for this purpose.
- the pouring bowl 40 comprises a receiving bowl 42 for receiving a casting material in a groove 50 with a storage surface 56 for the filter body 12.
- the pouring bowl 40 further comprises a cover 60 with at least two separately movably arranged cover parts 62, 64, which are in a first position 90 Release groove 50 and in a second position 92 essentially cover the groove 50 with the filter body 12 inserted as intended.
- the pouring bowl 40 can in principle be designed in a ring-shaped or rectangular shape. In the exemplary embodiments shown in FIGS. 1 to 7, the pouring bowl 40 is each rectangular in shape.
- the exemplary embodiment in Figure 1 has two separately movable cover parts 62, 64, which are U-shaped.
- the cover parts 62, 64 can be pivoted about the axes 70, 72, preferably by 180°, so that they can be fully opened.
- the axes 70,72 are parallel to one another but spaced apart from one another.
- the second position 92 is shown, in which the Cover parts 62, 64 lie on the receiving tray 42 in the folded state.
- the two cover parts 62, 64 collide in the second position 92 with end faces 82 and 85, or 83 and 84 and close tightly, so that a tight cover 60 results on the receiving shell 42.
- the exemplary embodiment in Figure 2 has four movably arranged cover parts 62, 64, 66, 68, which are trapezoidal.
- the cover parts 62, 64, 66, 68 can be pivoted about the axes 70, 71, 72, 73, preferably by 180°, so that they can be fully opened.
- a pair of axes namely the axis 70 and the axis 71 as well as the axis 71 and the axis 73, can be pivoted parallel to one another, although the parallel axes are spaced apart from one another.
- Each of the cover parts 62, 64, 66, 68 can be pivoted about its own axis 70,71,72,73.
- FIG. 2 shows the second position 92, in which the cover parts 62, 64, 66, 68 lie on the receiving tray 42 in the folded state.
- the cover parts 62, 64, 66, 68 collide in the second position 92 with end faces 82 and 89, 83 and 86, 84 and 87, 85, and 88 and close tightly, so that a tight cover 60 results on the receiving shell 42 .
- FIG. 3 shows the casting device 100 with the filter body 12 placed on the storage surface 56 of the receiving shell 42, which can be formed, for example, from a folded filter medium 14. Details of the mechanism of the movable cover elements 62, 64 in cooperation with the groove 50 of the receiving shell 42 are shown in the longitudinal section.
- the cover part 62 is shown in the first position 90, i.e. in the opened state, while on the right side of Figure 3, the cover part 64 is shown in the second position 92, i.e. in the folded state.
- the groove 50 is already filled with the foamed seal 20.
- the groove 50 has a groove wall 52 on its inside, which is lower than a groove wall 54 on its outside.
- the storage surface 56 for the filter body 12 is formed on the inside groove wall 52.
- the storage surface 56 for the filter body 12 is preferably designed horizontally.
- the groove 50 can be formed all around the receiving shell 42.
- the filter element 10 placed on the storage surface 56 seals the groove 50 inwards, since the filter element 10 projects into the groove 50 with its outer edge 18.
- the pouring bowl 42 can advantageously be designed like a pot with a bottom.
- the two cover parts 62, 64 are each pivotable separately from one another about their own axis 70, 72 arranged parallel to the storage surface 56 for the filter body 12 on the receiving shell 42, in particular pivotable through 180 °.
- the axes 70, 72 are spaced apart from one another.
- a fastening device (not shown) can advantageously be present with which the at least two cover parts 62, 64 can be fixed in the second position 92.
- a fastening device can be used, for example, as a mechanical fastening device, in particular as a latching device or be designed as a magnetic fastening device. This allows the cover parts 62, 64 to be fixed in the folded state.
- the two cover parts 62, 64 in the second position 92 can provide a free space in the pouring bowl 40 that is larger than a cross section of the filter body 12 inserted as intended into the pouring bowl 40. This allows the filter body 12 inserted as intended to have a gap 48 may be arranged spaced apart, in particular spaced apart in certain areas, from the cover parts 62, 64.
- the groove 50 with the cover parts 62, 64 each forms an enclosed cavity 46 into which the casting material is filled and foamed can be.
- An underside 78, 80 of the two cover parts 62, 64, which face the cavity 46 in the second position 92, are designed to form a sealing surface 22 when a seal 20 is attached. In this way, an overhead sealing surface or functional surface on the PUR end disk and/or seal 20 can be conveniently realized within the casting bowl.
- the filter body 12 is placed in a first position 90 of the cover parts 62, 64 with an end face 16 on the receiving bowl 42 as intended, so that the filter body 12 with the outer edge 18 at least partially protrudes into the groove 50 of the pouring bowl 40. Then the two cover parts 62, 64 are moved into the second position 92. As a result, the receiving shell 42 and the two cover parts 62, 64 in the second position 92 enclose the cavity 46 formed by the groove 50.
- the groove is then filled with the casting material, in particular polyurethane.
- the casting material foams and thus forms the circumferential seal 20 on the outer edge 18 of the end face 16 of the filter body 12.
- the casting material can be filled in in particular by means of a metering device, so that exactly the right amount of casting material is always filled into the groove.
- the two cover parts 62, 64 are moved into the first position 90 and the filter body 12 is removed from the storage surface 56 of the receiving bowl 42.
- the inner surfaces 58, 59 of the groove 50 and the undersides 78, 80 of the at least two cover parts 62, 64 can be provided with a separating agent in order to make the filter element 10 with the finished seal 20 easier afterwards to demold can.
- the release agent is sprayed or wetted with the cover parts 62, 64 open in the first position 90.
- a release agent spraying device 32 is shown schematically in FIG.
- the casting material can rise up the outside 26 when foaming and form a protrusion 24.
- a protective edge 28 can be seen, which can be attached in the usual way.
- the protective edge 28 can be made of a plastic and can be molded, glued or foamed on.
- the protective edge 28 can be strip-shaped or can also include several knobs. Because the cover 60 of the pouring bowl 40 can be moved to the side and does not have to be removed upwards like with conventional pouring bowls, there are no restrictions on the shape and dimensions, in particular the extent in the radial direction, of the protective edge 28. For example, it is possible for a projection of the protective edge 28 onto the seal 20 to extend to the sealing surface 22 or beyond.
- Figure 4 shows a longitudinal section through the casting device 100 according to Figure 1 with an attached filter element 10 of a different design and foamed seal 20.
- the filter element 10 has a filter body 12 which is inclined relative to the end face 16.
- the pouring bowl 40 is functionally designed as in the exemplary embodiment shown in FIG.
- the cover parts 62, 64 are adapted to the outside 26 of the inclined filter body 12, so that the side surfaces 74, 76 are formed parallel to the outside 26. This allows a uniform gap 48 to be maintained between the side surfaces 74, 76 and the outside 26.
- FIG. 5 shows a top view of a casting device 100 with a casting bowl 40 according to a further exemplary embodiment of the invention.
- the two cover parts 62, 64 are each arranged on the receiving shell 42 so as to be displaceable in different directions parallel to the storage surface 56 for the filter body 12.
- the cover parts 62, 64 are shown in the first position 90 and can be moved into the second position 92 in the direction of the arrow.
- the end faces 82 and 85, or 83 and 84, of the two cover parts 62, 64 then border one another closely.
- a mechanism for locking or latching the two cover parts 62, 64 can be provided, just as in the first exemplary embodiments in FIGS. 1 and 2.
- the movement of the two cover parts 62, 64 between the first and second positions 90, 92 can be done by hand, for example. Alternatively, however, a drive unit can also be provided.
- Figure 6 shows a longitudinal section through the casting device 100 according to Figure 5 with the filter element 10 attached.
- the filter element 10 has a filter body 12 that is inclined towards the end face 16. After placing the filter body 12 on the receiving shell 42, the filter body 12 is fixed with a hold-down device 30, so that the filter body 12 can be prevented from floating during the casting process with the casting material.
- the pouring bowl 40 is shown with the cover parts 62, 64 in the first position 90.
- the grooves 50 are open. It can be seen that the side surfaces 74, 76 of the cover parts 62, 64 are adapted in shape to the oblique outside 26 of the filter body 12 and are designed parallel thereto.
- Figure 7 shows a longitudinal section through the casting device 100 according to Figure 5 with attached filter element 10 and foamed seal 20.
- a protrusion 24 of the casting material has formed in the gaps 48 between side surfaces 74, 76 of the cover parts 62, 64 and the outside 26 of the filter body 12, which extends up the outside 26.
- the hold-down device 30 Before removing the filter body 12 from the receiving shell 42, the hold-down device 30 can expediently be removed again.
- an end plate for closing the open end faces of a filter body can also be produced in the form of a hollow body.
- the filter body is, for example, a bellows, the end folds of which are connected to one another, so that a hollow body is formed.
- This can be cylindrical, for example circular cylindrical, or conical.
- the end disks can be designed to be open or closed and at the same time designed to form a seal against a housing component.
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102022107265.7A DE102022107265A1 (de) | 2022-03-28 | 2022-03-28 | Gießschale für eine Gießvorrichtung und Verfahren zum Herstellen eines Filterelements |
| PCT/EP2023/053443 WO2023186393A1 (de) | 2022-03-28 | 2023-02-13 | GIEßSCHALE FÜR EINE GIEßVORRICHTUNG UND VERFAHREN ZUM HERSTELLEN EINES FILTERELEMENTS |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4499262A1 true EP4499262A1 (de) | 2025-02-05 |
Family
ID=85227022
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP23704969.7A Pending EP4499262A1 (de) | 2022-03-28 | 2023-02-13 | GIEßSCHALE FÜR EINE GIEßVORRICHTUNG UND VERFAHREN ZUM HERSTELLEN EINES FILTERELEMENTS |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US20250018616A1 (de) |
| EP (1) | EP4499262A1 (de) |
| CN (1) | CN119136890A (de) |
| DE (1) | DE102022107265A1 (de) |
| WO (1) | WO2023186393A1 (de) |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6053646B2 (ja) | 1979-05-31 | 1985-11-27 | 株式会社土屋製作所 | 角型空気濾過体の製造方法 |
| JPS56130205A (en) | 1980-03-18 | 1981-10-13 | Tsuchiya Mfg Co Ltd | End plate shaping method for square type filter element |
| DE3925511C1 (en) | 1989-08-02 | 1990-08-09 | Helsa-Werke Helmut Sandler Gmbh & Co Kg, 8586 Gefrees, De | Low cost filter with good stability - filter element has zigzag folds and surrounding frame using 2 mould halves |
| IT1241286B (it) * | 1990-11-20 | 1993-12-29 | Gilardini Spa | Metodo di fabbricazione di un filtro per aria, filtro cosi' ottenuto e apparecchiatura per l'attuazione di tale metodo |
| DE102012005530A1 (de) * | 2012-03-21 | 2013-09-26 | Mann+Hummel Gmbh | Verfahren zur Herstellung eines mit einem Dichtungsteil versehenen Filterelements |
| DE102014011536A1 (de) | 2013-08-22 | 2015-02-26 | Mann + Hummel Gmbh | Gießform zum Herstellen eines Luftfilterelements, Verfahren zum Herstellen eines Luftfilterelements und Luftfilterelement |
| DE102015011339B4 (de) * | 2014-09-24 | 2021-03-18 | Mann+Hummel Gmbh | Filterelement mit einer umlaufenden Dichtung und Verfahren zu seiner Herstellung |
| JP2017177369A (ja) | 2016-03-28 | 2017-10-05 | トヨタ紡織株式会社 | フィルタエレメントの製造装置 |
-
2022
- 2022-03-28 DE DE102022107265.7A patent/DE102022107265A1/de active Pending
-
2023
- 2023-02-13 EP EP23704969.7A patent/EP4499262A1/de active Pending
- 2023-02-13 WO PCT/EP2023/053443 patent/WO2023186393A1/de not_active Ceased
- 2023-02-13 CN CN202380031388.9A patent/CN119136890A/zh active Pending
-
2024
- 2024-09-26 US US18/897,017 patent/US20250018616A1/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| WO2023186393A1 (de) | 2023-10-05 |
| US20250018616A1 (en) | 2025-01-16 |
| DE102022107265A1 (de) | 2023-09-28 |
| CN119136890A (zh) | 2024-12-13 |
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